/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/resourcevar.h>
-#include <sys/proc.h>
-#include <sys/mount.h>
-#include <sys/buf.h>
+#include <sys/proc_internal.h>
+#include <sys/kauth.h>
+#include <sys/mount_internal.h>
#include <sys/malloc.h>
-#include <sys/mbuf.h>
+#include <sys/kpi_mbuf.h>
#include <sys/conf.h>
-#include <sys/namei.h>
-#include <sys/vnode.h>
+#include <sys/vnode_internal.h>
#include <sys/dirent.h>
#include <sys/fcntl.h>
#include <sys/lockf.h>
-#include <sys/ubc.h>
+#include <sys/ubc_internal.h>
+#include <sys/attr.h>
+#include <sys/signalvar.h>
+#include <sys/uio_internal.h>
-#include <ufs/ufs/dir.h>
#include <vfs/vfs_support.h>
#include <sys/vm.h>
-#include <machine/spl.h>
-#include <vm/vm_pageout.h>
-#include <sys/time.h>
+#include <sys/time.h>
#include <kern/clock.h>
+#include <libkern/OSAtomic.h>
#include <miscfs/fifofs/fifo.h>
#include <miscfs/specfs/specdev.h>
#include <nfs/nfsproto.h>
#include <nfs/nfs.h>
#include <nfs/nfsnode.h>
+#include <nfs/nfs_gss.h>
#include <nfs/nfsmount.h>
+#include <nfs/nfs_lock.h>
#include <nfs/xdr_subs.h>
#include <nfs/nfsm_subs.h>
-#include <nfs/nqnfs.h>
#include <net/if.h>
#include <netinet/in.h>
#include <kern/task.h>
#include <kern/sched_prim.h>
-
-#include <sys/kdebug.h>
-
-#define FSDBG(A, B, C, D, E) \
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, (A))) | DBG_FUNC_NONE, \
- (int)(B), (int)(C), (int)(D), (int)(E), 0)
-#define FSDBG_TOP(A, B, C, D, E) \
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, (A))) | DBG_FUNC_START, \
- (int)(B), (int)(C), (int)(D), (int)(E), 0)
-#define FSDBG_BOT(A, B, C, D, E) \
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, (A))) | DBG_FUNC_END, \
- (int)(B), (int)(C), (int)(D), (int)(E), 0)
-
-#define TRUE 1
-#define FALSE 0
-
-static int nfsspec_read __P((struct vop_read_args *));
-static int nfsspec_write __P((struct vop_write_args *));
-static int nfsfifo_read __P((struct vop_read_args *));
-static int nfsfifo_write __P((struct vop_write_args *));
-static int nfsspec_close __P((struct vop_close_args *));
-static int nfsfifo_close __P((struct vop_close_args *));
-#define nfs_poll vop_nopoll
-static int nfs_ioctl __P((struct vop_ioctl_args *));
-static int nfs_select __P((struct vop_select_args *));
-static int nfs_flush __P((struct vnode *,struct ucred *,int,struct proc *,int));
-static int nfs_setattrrpc __P((struct vnode *,struct vattr *,struct ucred *,struct proc *));
-static int nfs_lookup __P((struct vop_lookup_args *));
-static int nfs_create __P((struct vop_create_args *));
-static int nfs_mknod __P((struct vop_mknod_args *));
-static int nfs_open __P((struct vop_open_args *));
-static int nfs_close __P((struct vop_close_args *));
-static int nfs_access __P((struct vop_access_args *));
-static int nfs_getattr __P((struct vop_getattr_args *));
-static int nfs_setattr __P((struct vop_setattr_args *));
-static int nfs_read __P((struct vop_read_args *));
-static int nfs_mmap __P((struct vop_mmap_args *));
-static int nfs_fsync __P((struct vop_fsync_args *));
-static int nfs_remove __P((struct vop_remove_args *));
-static int nfs_link __P((struct vop_link_args *));
-static int nfs_rename __P((struct vop_rename_args *));
-static int nfs_mkdir __P((struct vop_mkdir_args *));
-static int nfs_rmdir __P((struct vop_rmdir_args *));
-static int nfs_symlink __P((struct vop_symlink_args *));
-static int nfs_readdir __P((struct vop_readdir_args *));
-static int nfs_bmap __P((struct vop_bmap_args *));
-static int nfs_strategy __P((struct vop_strategy_args *));
-static int nfs_lookitup __P((struct vnode *,char *,int,struct ucred *,struct proc *,struct nfsnode **));
-static int nfs_sillyrename __P((struct vnode *,struct vnode *,struct componentname *));
-static int nfsspec_access __P((struct vop_access_args *));
-static int nfs_readlink __P((struct vop_readlink_args *));
-static int nfs_print __P((struct vop_print_args *));
-static int nfs_pathconf __P((struct vop_pathconf_args *));
-static int nfs_advlock __P((struct vop_advlock_args *));
-static int nfs_blkatoff __P((struct vop_blkatoff_args *));
-static int nfs_bwrite __P((struct vop_bwrite_args *));
-static int nfs_valloc __P((struct vop_valloc_args *));
-static int nfs_vfree __P((struct vop_vfree_args *));
-static int nfs_truncate __P((struct vop_truncate_args *));
-static int nfs_update __P((struct vop_update_args *));
-static int nfs_pagein __P((struct vop_pagein_args *));
-static int nfs_pageout __P((struct vop_pageout_args *));
-static int nfs_blktooff __P((struct vop_blktooff_args *));
-static int nfs_offtoblk __P((struct vop_offtoblk_args *));
-static int nfs_cmap __P((struct vop_cmap_args *));
+#include <libkern/OSAtomic.h>
/*
- * Global vfs data structures for nfs
+ * NFS vnode ops
*/
-vop_t **nfsv2_vnodeop_p;
+static int nfs_vnop_lookup(struct vnop_lookup_args *);
+static int nfsspec_vnop_read(struct vnop_read_args *);
+static int nfsspec_vnop_write(struct vnop_write_args *);
+static int nfsspec_vnop_close(struct vnop_close_args *);
+#if FIFO
+static int nfsfifo_vnop_read(struct vnop_read_args *);
+static int nfsfifo_vnop_write(struct vnop_write_args *);
+static int nfsfifo_vnop_close(struct vnop_close_args *);
+#endif
+static int nfs_vnop_ioctl(struct vnop_ioctl_args *);
+static int nfs_vnop_select(struct vnop_select_args *);
+static int nfs_vnop_setattr(struct vnop_setattr_args *);
+static int nfs_vnop_read(struct vnop_read_args *);
+static int nfs_vnop_mmap(struct vnop_mmap_args *);
+static int nfs_vnop_fsync(struct vnop_fsync_args *);
+static int nfs_vnop_remove(struct vnop_remove_args *);
+static int nfs_vnop_rename(struct vnop_rename_args *);
+static int nfs_vnop_readdir(struct vnop_readdir_args *);
+static int nfs_vnop_readlink(struct vnop_readlink_args *);
+static int nfs_vnop_pathconf(struct vnop_pathconf_args *);
+static int nfs_vnop_pagein(struct vnop_pagein_args *);
+static int nfs_vnop_pageout(struct vnop_pageout_args *);
+static int nfs_vnop_blktooff(struct vnop_blktooff_args *);
+static int nfs_vnop_offtoblk(struct vnop_offtoblk_args *);
+static int nfs_vnop_blockmap(struct vnop_blockmap_args *);
+
+static int nfs3_vnop_create(struct vnop_create_args *);
+static int nfs3_vnop_mknod(struct vnop_mknod_args *);
+static int nfs3_vnop_getattr(struct vnop_getattr_args *);
+static int nfs3_vnop_link(struct vnop_link_args *);
+static int nfs3_vnop_mkdir(struct vnop_mkdir_args *);
+static int nfs3_vnop_rmdir(struct vnop_rmdir_args *);
+static int nfs3_vnop_symlink(struct vnop_symlink_args *);
+
+vnop_t **nfsv2_vnodeop_p;
static struct vnodeopv_entry_desc nfsv2_vnodeop_entries[] = {
- { &vop_default_desc, (vop_t *)vn_default_error },
- { &vop_lookup_desc, (vop_t *)nfs_lookup }, /* lookup */
- { &vop_create_desc, (vop_t *)nfs_create }, /* create */
- { &vop_mknod_desc, (vop_t *)nfs_mknod }, /* mknod */
- { &vop_open_desc, (vop_t *)nfs_open }, /* open */
- { &vop_close_desc, (vop_t *)nfs_close }, /* close */
- { &vop_access_desc, (vop_t *)nfs_access }, /* access */
- { &vop_getattr_desc, (vop_t *)nfs_getattr }, /* getattr */
- { &vop_setattr_desc, (vop_t *)nfs_setattr }, /* setattr */
- { &vop_read_desc, (vop_t *)nfs_read }, /* read */
- { &vop_write_desc, (vop_t *)nfs_write }, /* write */
- { &vop_lease_desc, (vop_t *)nfs_lease_check }, /* lease */
- { &vop_ioctl_desc, (vop_t *)nfs_ioctl }, /* ioctl */
- { &vop_select_desc, (vop_t *)nfs_select }, /* select */
- { &vop_revoke_desc, (vop_t *)nfs_revoke }, /* revoke */
- { &vop_mmap_desc, (vop_t *)nfs_mmap }, /* mmap */
- { &vop_fsync_desc, (vop_t *)nfs_fsync }, /* fsync */
- { &vop_seek_desc, (vop_t *)nfs_seek }, /* seek */
- { &vop_remove_desc, (vop_t *)nfs_remove }, /* remove */
- { &vop_link_desc, (vop_t *)nfs_link }, /* link */
- { &vop_rename_desc, (vop_t *)nfs_rename }, /* rename */
- { &vop_mkdir_desc, (vop_t *)nfs_mkdir }, /* mkdir */
- { &vop_rmdir_desc, (vop_t *)nfs_rmdir }, /* rmdir */
- { &vop_symlink_desc, (vop_t *)nfs_symlink }, /* symlink */
- { &vop_readdir_desc, (vop_t *)nfs_readdir }, /* readdir */
- { &vop_readlink_desc, (vop_t *)nfs_readlink }, /* readlink */
- { &vop_abortop_desc, (vop_t *)nfs_abortop }, /* abortop */
- { &vop_inactive_desc, (vop_t *)nfs_inactive }, /* inactive */
- { &vop_reclaim_desc, (vop_t *)nfs_reclaim }, /* reclaim */
- { &vop_lock_desc, (vop_t *)nfs_lock }, /* lock */
- { &vop_unlock_desc, (vop_t *)nfs_unlock }, /* unlock */
- { &vop_bmap_desc, (vop_t *)nfs_bmap }, /* bmap */
- { &vop_strategy_desc, (vop_t *)nfs_strategy }, /* strategy */
- { &vop_print_desc, (vop_t *)nfs_print }, /* print */
- { &vop_islocked_desc, (vop_t *)nfs_islocked }, /* islocked */
- { &vop_pathconf_desc, (vop_t *)nfs_pathconf }, /* pathconf */
- { &vop_advlock_desc, (vop_t *)nfs_advlock }, /* advlock */
- { &vop_blkatoff_desc, (vop_t *)nfs_blkatoff }, /* blkatoff */
- { &vop_valloc_desc, (vop_t *)nfs_valloc }, /* valloc */
- { &vop_reallocblks_desc, (vop_t *)nfs_reallocblks }, /* reallocblks */
- { &vop_vfree_desc, (vop_t *)nfs_vfree }, /* vfree */
- { &vop_truncate_desc, (vop_t *)nfs_truncate }, /* truncate */
- { &vop_update_desc, (vop_t *)nfs_update }, /* update */
- { &vop_bwrite_desc, (vop_t *)nfs_bwrite }, /* bwrite */
- { &vop_pagein_desc, (vop_t *)nfs_pagein }, /* Pagein */
- { &vop_pageout_desc, (vop_t *)nfs_pageout }, /* Pageout */
- { &vop_copyfile_desc, (vop_t *)err_copyfile }, /* Copyfile */
- { &vop_blktooff_desc, (vop_t *)nfs_blktooff }, /* blktooff */
- { &vop_offtoblk_desc, (vop_t *)nfs_offtoblk }, /* offtoblk */
- { &vop_cmap_desc, (vop_t *)nfs_cmap }, /* cmap */
+ { &vnop_default_desc, (vnop_t *)vn_default_error },
+ { &vnop_lookup_desc, (vnop_t *)nfs_vnop_lookup }, /* lookup */
+ { &vnop_create_desc, (vnop_t *)nfs3_vnop_create }, /* create */
+ { &vnop_mknod_desc, (vnop_t *)nfs3_vnop_mknod }, /* mknod */
+ { &vnop_open_desc, (vnop_t *)nfs3_vnop_open }, /* open */
+ { &vnop_close_desc, (vnop_t *)nfs3_vnop_close }, /* close */
+ { &vnop_access_desc, (vnop_t *)nfs_vnop_access }, /* access */
+ { &vnop_getattr_desc, (vnop_t *)nfs3_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_vnop_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfs_vnop_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfs_vnop_write }, /* write */
+ { &vnop_ioctl_desc, (vnop_t *)nfs_vnop_ioctl }, /* ioctl */
+ { &vnop_select_desc, (vnop_t *)nfs_vnop_select }, /* select */
+ { &vnop_revoke_desc, (vnop_t *)nfs_vnop_revoke }, /* revoke */
+ { &vnop_mmap_desc, (vnop_t *)nfs_vnop_mmap }, /* mmap */
+ { &vnop_fsync_desc, (vnop_t *)nfs_vnop_fsync }, /* fsync */
+ { &vnop_remove_desc, (vnop_t *)nfs_vnop_remove }, /* remove */
+ { &vnop_link_desc, (vnop_t *)nfs3_vnop_link }, /* link */
+ { &vnop_rename_desc, (vnop_t *)nfs_vnop_rename }, /* rename */
+ { &vnop_mkdir_desc, (vnop_t *)nfs3_vnop_mkdir }, /* mkdir */
+ { &vnop_rmdir_desc, (vnop_t *)nfs3_vnop_rmdir }, /* rmdir */
+ { &vnop_symlink_desc, (vnop_t *)nfs3_vnop_symlink }, /* symlink */
+ { &vnop_readdir_desc, (vnop_t *)nfs_vnop_readdir }, /* readdir */
+ { &vnop_readlink_desc, (vnop_t *)nfs_vnop_readlink }, /* readlink */
+ { &vnop_inactive_desc, (vnop_t *)nfs_vnop_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_vnop_reclaim }, /* reclaim */
+ { &vnop_strategy_desc, (vnop_t *)err_strategy }, /* strategy */
+ { &vnop_pathconf_desc, (vnop_t *)nfs_vnop_pathconf }, /* pathconf */
+ { &vnop_advlock_desc, (vnop_t *)nfs3_vnop_advlock }, /* advlock */
+ { &vnop_bwrite_desc, (vnop_t *)err_bwrite }, /* bwrite */
+ { &vnop_pagein_desc, (vnop_t *)nfs_vnop_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_vnop_pageout }, /* Pageout */
+ { &vnop_copyfile_desc, (vnop_t *)err_copyfile }, /* Copyfile */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_vnop_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_vnop_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_vnop_blockmap }, /* blockmap */
{ NULL, NULL }
};
struct vnodeopv_desc nfsv2_vnodeop_opv_desc =
{ &nfsv2_vnodeop_p, nfsv2_vnodeop_entries };
-#ifdef __FreeBSD__
-VNODEOP_SET(nfsv2_vnodeop_opv_desc);
-#endif
+
+vnop_t **nfsv4_vnodeop_p;
+static struct vnodeopv_entry_desc nfsv4_vnodeop_entries[] = {
+ { &vnop_default_desc, (vnop_t *)vn_default_error },
+ { &vnop_lookup_desc, (vnop_t *)nfs_vnop_lookup }, /* lookup */
+ { &vnop_create_desc, (vnop_t *)nfs4_vnop_create }, /* create */
+ { &vnop_mknod_desc, (vnop_t *)nfs4_vnop_mknod }, /* mknod */
+ { &vnop_open_desc, (vnop_t *)nfs4_vnop_open }, /* open */
+ { &vnop_close_desc, (vnop_t *)nfs4_vnop_close }, /* close */
+ { &vnop_access_desc, (vnop_t *)nfs_vnop_access }, /* access */
+ { &vnop_getattr_desc, (vnop_t *)nfs4_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_vnop_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfs_vnop_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfs_vnop_write }, /* write */
+ { &vnop_ioctl_desc, (vnop_t *)nfs_vnop_ioctl }, /* ioctl */
+ { &vnop_select_desc, (vnop_t *)nfs_vnop_select }, /* select */
+ { &vnop_revoke_desc, (vnop_t *)nfs_vnop_revoke }, /* revoke */
+ { &vnop_mmap_desc, (vnop_t *)nfs_vnop_mmap }, /* mmap */
+ { &vnop_fsync_desc, (vnop_t *)nfs_vnop_fsync }, /* fsync */
+ { &vnop_remove_desc, (vnop_t *)nfs_vnop_remove }, /* remove */
+ { &vnop_link_desc, (vnop_t *)nfs4_vnop_link }, /* link */
+ { &vnop_rename_desc, (vnop_t *)nfs_vnop_rename }, /* rename */
+ { &vnop_mkdir_desc, (vnop_t *)nfs4_vnop_mkdir }, /* mkdir */
+ { &vnop_rmdir_desc, (vnop_t *)nfs4_vnop_rmdir }, /* rmdir */
+ { &vnop_symlink_desc, (vnop_t *)nfs4_vnop_symlink }, /* symlink */
+ { &vnop_readdir_desc, (vnop_t *)nfs_vnop_readdir }, /* readdir */
+ { &vnop_readlink_desc, (vnop_t *)nfs_vnop_readlink }, /* readlink */
+ { &vnop_inactive_desc, (vnop_t *)nfs_vnop_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_vnop_reclaim }, /* reclaim */
+ { &vnop_strategy_desc, (vnop_t *)err_strategy }, /* strategy */
+ { &vnop_pathconf_desc, (vnop_t *)nfs_vnop_pathconf }, /* pathconf */
+ { &vnop_advlock_desc, (vnop_t *)nfs4_vnop_advlock }, /* advlock */
+ { &vnop_bwrite_desc, (vnop_t *)err_bwrite }, /* bwrite */
+ { &vnop_pagein_desc, (vnop_t *)nfs_vnop_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_vnop_pageout }, /* Pageout */
+ { &vnop_copyfile_desc, (vnop_t *)err_copyfile }, /* Copyfile */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_vnop_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_vnop_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_vnop_blockmap }, /* blockmap */
+ { NULL, NULL }
+};
+struct vnodeopv_desc nfsv4_vnodeop_opv_desc =
+ { &nfsv4_vnodeop_p, nfsv4_vnodeop_entries };
/*
* Special device vnode ops
*/
-vop_t **spec_nfsv2nodeop_p;
+vnop_t **spec_nfsv2nodeop_p;
static struct vnodeopv_entry_desc spec_nfsv2nodeop_entries[] = {
- { &vop_default_desc, (vop_t *)vn_default_error },
- { &vop_lookup_desc, (vop_t *)spec_lookup }, /* lookup */
- { &vop_create_desc, (vop_t *)spec_create }, /* create */
- { &vop_mknod_desc, (vop_t *)spec_mknod }, /* mknod */
- { &vop_open_desc, (vop_t *)spec_open }, /* open */
- { &vop_close_desc, (vop_t *)nfsspec_close }, /* close */
- { &vop_access_desc, (vop_t *)nfsspec_access }, /* access */
- { &vop_getattr_desc, (vop_t *)nfs_getattr }, /* getattr */
- { &vop_setattr_desc, (vop_t *)nfs_setattr }, /* setattr */
- { &vop_read_desc, (vop_t *)nfsspec_read }, /* read */
- { &vop_write_desc, (vop_t *)nfsspec_write }, /* write */
- { &vop_lease_desc, (vop_t *)spec_lease_check }, /* lease */
- { &vop_ioctl_desc, (vop_t *)spec_ioctl }, /* ioctl */
- { &vop_select_desc, (vop_t *)spec_select }, /* select */
- { &vop_revoke_desc, (vop_t *)spec_revoke }, /* revoke */
- { &vop_mmap_desc, (vop_t *)spec_mmap }, /* mmap */
- { &vop_fsync_desc, (vop_t *)nfs_fsync }, /* fsync */
- { &vop_seek_desc, (vop_t *)spec_seek }, /* seek */
- { &vop_remove_desc, (vop_t *)spec_remove }, /* remove */
- { &vop_link_desc, (vop_t *)spec_link }, /* link */
- { &vop_rename_desc, (vop_t *)spec_rename }, /* rename */
- { &vop_mkdir_desc, (vop_t *)spec_mkdir }, /* mkdir */
- { &vop_rmdir_desc, (vop_t *)spec_rmdir }, /* rmdir */
- { &vop_symlink_desc, (vop_t *)spec_symlink }, /* symlink */
- { &vop_readdir_desc, (vop_t *)spec_readdir }, /* readdir */
- { &vop_readlink_desc, (vop_t *)spec_readlink }, /* readlink */
- { &vop_abortop_desc, (vop_t *)spec_abortop }, /* abortop */
- { &vop_inactive_desc, (vop_t *)nfs_inactive }, /* inactive */
- { &vop_reclaim_desc, (vop_t *)nfs_reclaim }, /* reclaim */
- { &vop_lock_desc, (vop_t *)nfs_lock }, /* lock */
- { &vop_unlock_desc, (vop_t *)nfs_unlock }, /* unlock */
- { &vop_bmap_desc, (vop_t *)spec_bmap }, /* bmap */
- { &vop_strategy_desc, (vop_t *)spec_strategy }, /* strategy */
- { &vop_print_desc, (vop_t *)nfs_print }, /* print */
- { &vop_islocked_desc, (vop_t *)nfs_islocked }, /* islocked */
- { &vop_pathconf_desc, (vop_t *)spec_pathconf }, /* pathconf */
- { &vop_advlock_desc, (vop_t *)spec_advlock }, /* advlock */
- { &vop_blkatoff_desc, (vop_t *)spec_blkatoff }, /* blkatoff */
- { &vop_valloc_desc, (vop_t *)spec_valloc }, /* valloc */
- { &vop_reallocblks_desc, (vop_t *)spec_reallocblks }, /* reallocblks */
- { &vop_vfree_desc, (vop_t *)spec_vfree }, /* vfree */
- { &vop_truncate_desc, (vop_t *)spec_truncate }, /* truncate */
- { &vop_update_desc, (vop_t *)nfs_update }, /* update */
- { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
- { &vop_devblocksize_desc, (vop_t *)spec_devblocksize }, /* devblocksize */
- { &vop_pagein_desc, (vop_t *)nfs_pagein }, /* Pagein */
- { &vop_pageout_desc, (vop_t *)nfs_pageout }, /* Pageout */
- { &vop_blktooff_desc, (vop_t *)nfs_blktooff }, /* blktooff */
- { &vop_offtoblk_desc, (vop_t *)nfs_offtoblk }, /* offtoblk */
- { &vop_cmap_desc, (vop_t *)nfs_cmap }, /* cmap */
+ { &vnop_default_desc, (vnop_t *)vn_default_error },
+ { &vnop_lookup_desc, (vnop_t *)spec_lookup }, /* lookup */
+ { &vnop_create_desc, (vnop_t *)spec_create }, /* create */
+ { &vnop_mknod_desc, (vnop_t *)spec_mknod }, /* mknod */
+ { &vnop_open_desc, (vnop_t *)spec_open }, /* open */
+ { &vnop_close_desc, (vnop_t *)nfsspec_vnop_close }, /* close */
+ { &vnop_getattr_desc, (vnop_t *)nfs3_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_vnop_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfsspec_vnop_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfsspec_vnop_write }, /* write */
+ { &vnop_ioctl_desc, (vnop_t *)spec_ioctl }, /* ioctl */
+ { &vnop_select_desc, (vnop_t *)spec_select }, /* select */
+ { &vnop_revoke_desc, (vnop_t *)spec_revoke }, /* revoke */
+ { &vnop_mmap_desc, (vnop_t *)spec_mmap }, /* mmap */
+ { &vnop_fsync_desc, (vnop_t *)nfs_vnop_fsync }, /* fsync */
+ { &vnop_remove_desc, (vnop_t *)spec_remove }, /* remove */
+ { &vnop_link_desc, (vnop_t *)spec_link }, /* link */
+ { &vnop_rename_desc, (vnop_t *)spec_rename }, /* rename */
+ { &vnop_mkdir_desc, (vnop_t *)spec_mkdir }, /* mkdir */
+ { &vnop_rmdir_desc, (vnop_t *)spec_rmdir }, /* rmdir */
+ { &vnop_symlink_desc, (vnop_t *)spec_symlink }, /* symlink */
+ { &vnop_readdir_desc, (vnop_t *)spec_readdir }, /* readdir */
+ { &vnop_readlink_desc, (vnop_t *)spec_readlink }, /* readlink */
+ { &vnop_inactive_desc, (vnop_t *)nfs_vnop_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_vnop_reclaim }, /* reclaim */
+ { &vnop_strategy_desc, (vnop_t *)spec_strategy }, /* strategy */
+ { &vnop_pathconf_desc, (vnop_t *)spec_pathconf }, /* pathconf */
+ { &vnop_advlock_desc, (vnop_t *)spec_advlock }, /* advlock */
+ { &vnop_bwrite_desc, (vnop_t *)vn_bwrite }, /* bwrite */
+ { &vnop_pagein_desc, (vnop_t *)nfs_vnop_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_vnop_pageout }, /* Pageout */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_vnop_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_vnop_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_vnop_blockmap }, /* blockmap */
{ NULL, NULL }
};
struct vnodeopv_desc spec_nfsv2nodeop_opv_desc =
{ &spec_nfsv2nodeop_p, spec_nfsv2nodeop_entries };
-#ifdef __FreeBSD__
-VNODEOP_SET(spec_nfsv2nodeop_opv_desc);
-#endif
+vnop_t **spec_nfsv4nodeop_p;
+static struct vnodeopv_entry_desc spec_nfsv4nodeop_entries[] = {
+ { &vnop_default_desc, (vnop_t *)vn_default_error },
+ { &vnop_lookup_desc, (vnop_t *)spec_lookup }, /* lookup */
+ { &vnop_create_desc, (vnop_t *)spec_create }, /* create */
+ { &vnop_mknod_desc, (vnop_t *)spec_mknod }, /* mknod */
+ { &vnop_open_desc, (vnop_t *)spec_open }, /* open */
+ { &vnop_close_desc, (vnop_t *)nfsspec_vnop_close }, /* close */
+ { &vnop_getattr_desc, (vnop_t *)nfs4_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_vnop_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfsspec_vnop_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfsspec_vnop_write }, /* write */
+ { &vnop_ioctl_desc, (vnop_t *)spec_ioctl }, /* ioctl */
+ { &vnop_select_desc, (vnop_t *)spec_select }, /* select */
+ { &vnop_revoke_desc, (vnop_t *)spec_revoke }, /* revoke */
+ { &vnop_mmap_desc, (vnop_t *)spec_mmap }, /* mmap */
+ { &vnop_fsync_desc, (vnop_t *)nfs_vnop_fsync }, /* fsync */
+ { &vnop_remove_desc, (vnop_t *)spec_remove }, /* remove */
+ { &vnop_link_desc, (vnop_t *)spec_link }, /* link */
+ { &vnop_rename_desc, (vnop_t *)spec_rename }, /* rename */
+ { &vnop_mkdir_desc, (vnop_t *)spec_mkdir }, /* mkdir */
+ { &vnop_rmdir_desc, (vnop_t *)spec_rmdir }, /* rmdir */
+ { &vnop_symlink_desc, (vnop_t *)spec_symlink }, /* symlink */
+ { &vnop_readdir_desc, (vnop_t *)spec_readdir }, /* readdir */
+ { &vnop_readlink_desc, (vnop_t *)spec_readlink }, /* readlink */
+ { &vnop_inactive_desc, (vnop_t *)nfs_vnop_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_vnop_reclaim }, /* reclaim */
+ { &vnop_strategy_desc, (vnop_t *)spec_strategy }, /* strategy */
+ { &vnop_pathconf_desc, (vnop_t *)spec_pathconf }, /* pathconf */
+ { &vnop_advlock_desc, (vnop_t *)spec_advlock }, /* advlock */
+ { &vnop_bwrite_desc, (vnop_t *)vn_bwrite }, /* bwrite */
+ { &vnop_pagein_desc, (vnop_t *)nfs_vnop_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_vnop_pageout }, /* Pageout */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_vnop_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_vnop_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_vnop_blockmap }, /* blockmap */
+ { NULL, NULL }
+};
+struct vnodeopv_desc spec_nfsv4nodeop_opv_desc =
+ { &spec_nfsv4nodeop_p, spec_nfsv4nodeop_entries };
-vop_t **fifo_nfsv2nodeop_p;
+#if FIFO
+vnop_t **fifo_nfsv2nodeop_p;
static struct vnodeopv_entry_desc fifo_nfsv2nodeop_entries[] = {
- { &vop_default_desc, (vop_t *)vn_default_error },
- { &vop_lookup_desc, (vop_t *)fifo_lookup }, /* lookup */
- { &vop_create_desc, (vop_t *)fifo_create }, /* create */
- { &vop_mknod_desc, (vop_t *)fifo_mknod }, /* mknod */
- { &vop_open_desc, (vop_t *)fifo_open }, /* open */
- { &vop_close_desc, (vop_t *)nfsfifo_close }, /* close */
- { &vop_access_desc, (vop_t *)nfsspec_access }, /* access */
- { &vop_getattr_desc, (vop_t *)nfs_getattr }, /* getattr */
- { &vop_setattr_desc, (vop_t *)nfs_setattr }, /* setattr */
- { &vop_read_desc, (vop_t *)nfsfifo_read }, /* read */
- { &vop_write_desc, (vop_t *)nfsfifo_write }, /* write */
- { &vop_lease_desc, (vop_t *)fifo_lease_check }, /* lease */
- { &vop_ioctl_desc, (vop_t *)fifo_ioctl }, /* ioctl */
- { &vop_select_desc, (vop_t *)fifo_select }, /* select */
- { &vop_revoke_desc, (vop_t *)fifo_revoke }, /* revoke */
- { &vop_mmap_desc, (vop_t *)fifo_mmap }, /* mmap */
- { &vop_fsync_desc, (vop_t *)nfs_fsync }, /* fsync */
- { &vop_seek_desc, (vop_t *)fifo_seek }, /* seek */
- { &vop_remove_desc, (vop_t *)fifo_remove }, /* remove */
- { &vop_link_desc, (vop_t *)fifo_link }, /* link */
- { &vop_rename_desc, (vop_t *)fifo_rename }, /* rename */
- { &vop_mkdir_desc, (vop_t *)fifo_mkdir }, /* mkdir */
- { &vop_rmdir_desc, (vop_t *)fifo_rmdir }, /* rmdir */
- { &vop_symlink_desc, (vop_t *)fifo_symlink }, /* symlink */
- { &vop_readdir_desc, (vop_t *)fifo_readdir }, /* readdir */
- { &vop_readlink_desc, (vop_t *)fifo_readlink }, /* readlink */
- { &vop_abortop_desc, (vop_t *)fifo_abortop }, /* abortop */
- { &vop_inactive_desc, (vop_t *)nfs_inactive }, /* inactive */
- { &vop_reclaim_desc, (vop_t *)nfs_reclaim }, /* reclaim */
- { &vop_lock_desc, (vop_t *)nfs_lock }, /* lock */
- { &vop_unlock_desc, (vop_t *)nfs_unlock }, /* unlock */
- { &vop_bmap_desc, (vop_t *)fifo_bmap }, /* bmap */
- { &vop_strategy_desc, (vop_t *)fifo_strategy }, /* strategy */
- { &vop_print_desc, (vop_t *)nfs_print }, /* print */
- { &vop_islocked_desc, (vop_t *)nfs_islocked }, /* islocked */
- { &vop_pathconf_desc, (vop_t *)fifo_pathconf }, /* pathconf */
- { &vop_advlock_desc, (vop_t *)fifo_advlock }, /* advlock */
- { &vop_blkatoff_desc, (vop_t *)fifo_blkatoff }, /* blkatoff */
- { &vop_valloc_desc, (vop_t *)fifo_valloc }, /* valloc */
- { &vop_reallocblks_desc, (vop_t *)fifo_reallocblks }, /* reallocblks */
- { &vop_vfree_desc, (vop_t *)fifo_vfree }, /* vfree */
- { &vop_truncate_desc, (vop_t *)fifo_truncate }, /* truncate */
- { &vop_update_desc, (vop_t *)nfs_update }, /* update */
- { &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
- { &vop_pagein_desc, (vop_t *)nfs_pagein }, /* Pagein */
- { &vop_pageout_desc, (vop_t *)nfs_pageout }, /* Pageout */
- { &vop_blktooff_desc, (vop_t *)nfs_blktooff }, /* blktooff */
- { &vop_offtoblk_desc, (vop_t *)nfs_offtoblk }, /* offtoblk */
- { &vop_cmap_desc, (vop_t *)nfs_cmap }, /* cmap */
+ { &vnop_default_desc, (vnop_t *)vn_default_error },
+ { &vnop_lookup_desc, (vnop_t *)fifo_lookup }, /* lookup */
+ { &vnop_create_desc, (vnop_t *)fifo_create }, /* create */
+ { &vnop_mknod_desc, (vnop_t *)fifo_mknod }, /* mknod */
+ { &vnop_open_desc, (vnop_t *)fifo_open }, /* open */
+ { &vnop_close_desc, (vnop_t *)nfsfifo_vnop_close }, /* close */
+ { &vnop_getattr_desc, (vnop_t *)nfs3_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_vnop_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfsfifo_vnop_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfsfifo_vnop_write }, /* write */
+ { &vnop_ioctl_desc, (vnop_t *)fifo_ioctl }, /* ioctl */
+ { &vnop_select_desc, (vnop_t *)fifo_select }, /* select */
+ { &vnop_revoke_desc, (vnop_t *)fifo_revoke }, /* revoke */
+ { &vnop_mmap_desc, (vnop_t *)fifo_mmap }, /* mmap */
+ { &vnop_fsync_desc, (vnop_t *)nfs_vnop_fsync }, /* fsync */
+ { &vnop_remove_desc, (vnop_t *)fifo_remove }, /* remove */
+ { &vnop_link_desc, (vnop_t *)fifo_link }, /* link */
+ { &vnop_rename_desc, (vnop_t *)fifo_rename }, /* rename */
+ { &vnop_mkdir_desc, (vnop_t *)fifo_mkdir }, /* mkdir */
+ { &vnop_rmdir_desc, (vnop_t *)fifo_rmdir }, /* rmdir */
+ { &vnop_symlink_desc, (vnop_t *)fifo_symlink }, /* symlink */
+ { &vnop_readdir_desc, (vnop_t *)fifo_readdir }, /* readdir */
+ { &vnop_readlink_desc, (vnop_t *)fifo_readlink }, /* readlink */
+ { &vnop_inactive_desc, (vnop_t *)nfs_vnop_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_vnop_reclaim }, /* reclaim */
+ { &vnop_strategy_desc, (vnop_t *)fifo_strategy }, /* strategy */
+ { &vnop_pathconf_desc, (vnop_t *)fifo_pathconf }, /* pathconf */
+ { &vnop_advlock_desc, (vnop_t *)fifo_advlock }, /* advlock */
+ { &vnop_bwrite_desc, (vnop_t *)vn_bwrite }, /* bwrite */
+ { &vnop_pagein_desc, (vnop_t *)nfs_vnop_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_vnop_pageout }, /* Pageout */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_vnop_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_vnop_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_vnop_blockmap }, /* blockmap */
{ NULL, NULL }
};
struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc =
{ &fifo_nfsv2nodeop_p, fifo_nfsv2nodeop_entries };
-#ifdef __FreeBSD__
-VNODEOP_SET(fifo_nfsv2nodeop_opv_desc);
-#endif
-
-static int nfs_commit __P((struct vnode *vp, u_quad_t offset, int cnt,
- struct ucred *cred, struct proc *procp));
-static int nfs_mknodrpc __P((struct vnode *dvp, struct vnode **vpp,
- struct componentname *cnp,
- struct vattr *vap));
-static int nfs_removerpc __P((struct vnode *dvp, char *name, int namelen,
- struct ucred *cred, struct proc *proc));
-static int nfs_renamerpc __P((struct vnode *fdvp, char *fnameptr,
- int fnamelen, struct vnode *tdvp,
- char *tnameptr, int tnamelen,
- struct ucred *cred, struct proc *proc));
-static int nfs_renameit __P((struct vnode *sdvp,
- struct componentname *scnp,
- struct sillyrename *sp));
-
-/*
- * Global variables
- */
-extern u_long nfs_true, nfs_false;
-extern struct nfsstats nfsstats;
-extern nfstype nfsv3_type[9];
-struct proc *nfs_iodwant[NFS_MAXASYNCDAEMON];
-struct nfsmount *nfs_iodmount[NFS_MAXASYNCDAEMON];
-int nfs_numasync = 0;
-#define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1))
-
-static int nfsaccess_cache_timeout = NFS_MAXATTRTIMO;
-/* SYSCTL_INT(_vfs_nfs, OID_AUTO, access_cache_timeout, CTLFLAG_RW,
- &nfsaccess_cache_timeout, 0, "NFS ACCESS cache timeout");
-*/
-#define NFSV3ACCESS_ALL (NFSV3ACCESS_READ | NFSV3ACCESS_MODIFY \
- | NFSV3ACCESS_EXTEND | NFSV3ACCESS_EXECUTE \
- | NFSV3ACCESS_DELETE | NFSV3ACCESS_LOOKUP)
-
-
-/*
- * the following are needed only by nfs_pageout to know how to handle errors
- * see nfs_pageout comments on explanation of actions.
- * the errors here are copied from errno.h and errors returned by servers
- * are expected to match the same numbers here. If not, our actions maybe
- * erroneous.
- */
-enum actiontype {NOACTION, DUMP, DUMPANDLOG, RETRY, RETRYWITHSLEEP, SEVER};
-
-static int errorcount[ELAST+1]; /* better be zeros when initialized */
-
-static const short errortooutcome[ELAST+1] = {
- NOACTION,
- DUMP, /* EPERM 1 Operation not permitted */
- DUMP, /* ENOENT 2 No such file or directory */
- DUMPANDLOG, /* ESRCH 3 No such process */
- RETRY, /* EINTR 4 Interrupted system call */
- DUMP, /* EIO 5 Input/output error */
- DUMP, /* ENXIO 6 Device not configured */
- DUMPANDLOG, /* E2BIG 7 Argument list too long */
- DUMPANDLOG, /* ENOEXEC 8 Exec format error */
- DUMPANDLOG, /* EBADF 9 Bad file descriptor */
- DUMPANDLOG, /* ECHILD 10 No child processes */
- DUMPANDLOG, /* EDEADLK 11 Resource deadlock avoided - was EAGAIN */
- RETRY, /* ENOMEM 12 Cannot allocate memory */
- DUMP, /* EACCES 13 Permission denied */
- DUMPANDLOG, /* EFAULT 14 Bad address */
- DUMPANDLOG, /* ENOTBLK 15 POSIX - Block device required */
- RETRY, /* EBUSY 16 Device busy */
- DUMP, /* EEXIST 17 File exists */
- DUMP, /* EXDEV 18 Cross-device link */
- DUMP, /* ENODEV 19 Operation not supported by device */
- DUMP, /* ENOTDIR 20 Not a directory */
- DUMP, /* EISDIR 21 Is a directory */
- DUMP, /* EINVAL 22 Invalid argument */
- DUMPANDLOG, /* ENFILE 23 Too many open files in system */
- DUMPANDLOG, /* EMFILE 24 Too many open files */
- DUMPANDLOG, /* ENOTTY 25 Inappropriate ioctl for device */
- DUMPANDLOG, /* ETXTBSY 26 Text file busy - POSIX */
- DUMP, /* EFBIG 27 File too large */
- DUMP, /* ENOSPC 28 No space left on device */
- DUMPANDLOG, /* ESPIPE 29 Illegal seek */
- DUMP, /* EROFS 30 Read-only file system */
- DUMP, /* EMLINK 31 Too many links */
- RETRY, /* EPIPE 32 Broken pipe */
- /* math software */
- DUMPANDLOG, /* EDOM 33 Numerical argument out of domain */
- DUMPANDLOG, /* ERANGE 34 Result too large */
- RETRY, /* EAGAIN/EWOULDBLOCK 35 Resource temporarily unavailable */
- DUMPANDLOG, /* EINPROGRESS 36 Operation now in progress */
- DUMPANDLOG, /* EALREADY 37 Operation already in progress */
- /* ipc/network software -- argument errors */
- DUMPANDLOG, /* ENOTSOC 38 Socket operation on non-socket */
- DUMPANDLOG, /* EDESTADDRREQ 39 Destination address required */
- DUMPANDLOG, /* EMSGSIZE 40 Message too long */
- DUMPANDLOG, /* EPROTOTYPE 41 Protocol wrong type for socket */
- DUMPANDLOG, /* ENOPROTOOPT 42 Protocol not available */
- DUMPANDLOG, /* EPROTONOSUPPORT 43 Protocol not supported */
- DUMPANDLOG, /* ESOCKTNOSUPPORT 44 Socket type not supported */
- DUMPANDLOG, /* ENOTSUP 45 Operation not supported */
- DUMPANDLOG, /* EPFNOSUPPORT 46 Protocol family not supported */
- DUMPANDLOG, /* EAFNOSUPPORT 47 Address family not supported by protocol family */
- DUMPANDLOG, /* EADDRINUSE 48 Address already in use */
- DUMPANDLOG, /* EADDRNOTAVAIL 49 Can't assign requested address */
- /* ipc/network software -- operational errors */
- RETRY, /* ENETDOWN 50 Network is down */
- RETRY, /* ENETUNREACH 51 Network is unreachable */
- RETRY, /* ENETRESET 52 Network dropped connection on reset */
- RETRY, /* ECONNABORTED 53 Software caused connection abort */
- RETRY, /* ECONNRESET 54 Connection reset by peer */
- RETRY, /* ENOBUFS 55 No buffer space available */
- RETRY, /* EISCONN 56 Socket is already connected */
- RETRY, /* ENOTCONN 57 Socket is not connected */
- RETRY, /* ESHUTDOWN 58 Can't send after socket shutdown */
- RETRY, /* ETOOMANYREFS 59 Too many references: can't splice */
- RETRY, /* ETIMEDOUT 60 Operation timed out */
- RETRY, /* ECONNREFUSED 61 Connection refused */
-
- DUMPANDLOG, /* ELOOP 62 Too many levels of symbolic links */
- DUMP, /* ENAMETOOLONG 63 File name too long */
- RETRY, /* EHOSTDOWN 64 Host is down */
- RETRY, /* EHOSTUNREACH 65 No route to host */
- DUMP, /* ENOTEMPTY 66 Directory not empty */
- /* quotas & mush */
- DUMPANDLOG, /* PROCLIM 67 Too many processes */
- DUMPANDLOG, /* EUSERS 68 Too many users */
- DUMPANDLOG, /* EDQUOT 69 Disc quota exceeded */
- /* Network File System */
- DUMP, /* ESTALE 70 Stale NFS file handle */
- DUMP, /* EREMOTE 71 Too many levels of remote in path */
- DUMPANDLOG, /* EBADRPC 72 RPC struct is bad */
- DUMPANDLOG, /* ERPCMISMATCH 73 RPC version wrong */
- DUMPANDLOG, /* EPROGUNAVAIL 74 RPC prog. not avail */
- DUMPANDLOG, /* EPROGMISMATCH 75 Program version wrong */
- DUMPANDLOG, /* EPROCUNAVAIL 76 Bad procedure for program */
- DUMPANDLOG, /* ENOLCK 77 No locks available */
- DUMPANDLOG, /* ENOSYS 78 Function not implemented */
- DUMPANDLOG, /* EFTYPE 79 Inappropriate file type or format */
- DUMPANDLOG, /* EAUTH 80 Authentication error */
- DUMPANDLOG, /* ENEEDAUTH 81 Need authenticator */
- /* Intelligent device errors */
- DUMPANDLOG, /* EPWROFF 82 Device power is off */
- DUMPANDLOG, /* EDEVERR 83 Device error, e.g. paper out */
- DUMPANDLOG, /* EOVERFLOW 84 Value too large to be stored in data type */
- /* Program loading errors */
- DUMPANDLOG, /* EBADEXEC 85 Bad executable */
- DUMPANDLOG, /* EBADARCH 86 Bad CPU type in executable */
- DUMPANDLOG, /* ESHLIBVERS 87 Shared library version mismatch */
- DUMPANDLOG, /* EBADMACHO 88 Malformed Macho file */
+vnop_t **fifo_nfsv4nodeop_p;
+static struct vnodeopv_entry_desc fifo_nfsv4nodeop_entries[] = {
+ { &vnop_default_desc, (vnop_t *)vn_default_error },
+ { &vnop_lookup_desc, (vnop_t *)fifo_lookup }, /* lookup */
+ { &vnop_create_desc, (vnop_t *)fifo_create }, /* create */
+ { &vnop_mknod_desc, (vnop_t *)fifo_mknod }, /* mknod */
+ { &vnop_open_desc, (vnop_t *)fifo_open }, /* open */
+ { &vnop_close_desc, (vnop_t *)nfsfifo_vnop_close }, /* close */
+ { &vnop_getattr_desc, (vnop_t *)nfs4_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_vnop_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfsfifo_vnop_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfsfifo_vnop_write }, /* write */
+ { &vnop_ioctl_desc, (vnop_t *)fifo_ioctl }, /* ioctl */
+ { &vnop_select_desc, (vnop_t *)fifo_select }, /* select */
+ { &vnop_revoke_desc, (vnop_t *)fifo_revoke }, /* revoke */
+ { &vnop_mmap_desc, (vnop_t *)fifo_mmap }, /* mmap */
+ { &vnop_fsync_desc, (vnop_t *)nfs_vnop_fsync }, /* fsync */
+ { &vnop_remove_desc, (vnop_t *)fifo_remove }, /* remove */
+ { &vnop_link_desc, (vnop_t *)fifo_link }, /* link */
+ { &vnop_rename_desc, (vnop_t *)fifo_rename }, /* rename */
+ { &vnop_mkdir_desc, (vnop_t *)fifo_mkdir }, /* mkdir */
+ { &vnop_rmdir_desc, (vnop_t *)fifo_rmdir }, /* rmdir */
+ { &vnop_symlink_desc, (vnop_t *)fifo_symlink }, /* symlink */
+ { &vnop_readdir_desc, (vnop_t *)fifo_readdir }, /* readdir */
+ { &vnop_readlink_desc, (vnop_t *)fifo_readlink }, /* readlink */
+ { &vnop_inactive_desc, (vnop_t *)nfs_vnop_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_vnop_reclaim }, /* reclaim */
+ { &vnop_strategy_desc, (vnop_t *)fifo_strategy }, /* strategy */
+ { &vnop_pathconf_desc, (vnop_t *)fifo_pathconf }, /* pathconf */
+ { &vnop_advlock_desc, (vnop_t *)fifo_advlock }, /* advlock */
+ { &vnop_bwrite_desc, (vnop_t *)vn_bwrite }, /* bwrite */
+ { &vnop_pagein_desc, (vnop_t *)nfs_vnop_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_vnop_pageout }, /* Pageout */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_vnop_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_vnop_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_vnop_blockmap }, /* blockmap */
+ { NULL, NULL }
};
+struct vnodeopv_desc fifo_nfsv4nodeop_opv_desc =
+ { &fifo_nfsv4nodeop_p, fifo_nfsv4nodeop_entries };
+#endif /* FIFO */
-static short
-nfs_pageouterrorhandler(error)
- int error;
+static int nfs_sillyrename(nfsnode_t,nfsnode_t,struct componentname *,vfs_context_t);
+
+/*
+ * Find the slot in the access cache for this UID.
+ * If adding and no existing slot is found, reuse slots in FIFO order.
+ * The index of the next slot to use is kept in the last entry of the n_mode array.
+ */
+int
+nfs_node_mode_slot(nfsnode_t np, uid_t uid, int add)
{
- if (error > ELAST)
- return(DUMP);
- else
- return(errortooutcome[error]);
+ int slot;
+
+ for (slot=0; slot < NFS_ACCESS_CACHE_SIZE; slot++)
+ if (np->n_modeuid[slot] == uid)
+ break;
+ if (slot == NFS_ACCESS_CACHE_SIZE) {
+ if (!add)
+ return (-1);
+ slot = np->n_mode[NFS_ACCESS_CACHE_SIZE];
+ np->n_mode[NFS_ACCESS_CACHE_SIZE] = (slot + 1) % NFS_ACCESS_CACHE_SIZE;
+ }
+ return (slot);
}
-static int
-nfs3_access_otw(struct vnode *vp,
- int wmode,
- struct proc *p,
- struct ucred *cred)
+int
+nfs3_access_rpc(nfsnode_t np, u_long *mode, vfs_context_t ctx)
{
- const int v3 = 1;
- u_int32_t *tl;
- int error = 0, attrflag;
-
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- caddr_t bpos, dpos, cp2;
- register int32_t t1, t2;
- register caddr_t cp;
- u_int32_t rmode;
- struct nfsnode *np = VTONFS(vp);
+ int error = 0, status, slot;
+ uint32_t access = 0;
u_int64_t xid;
+ struct nfsm_chain nmreq, nmrep;
+ struct timeval now;
+ uid_t uid;
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq, NFSX_FH(NFS_VER3) + NFSX_UNSIGNED);
+ nfsm_chain_add_fh(error, &nmreq, NFS_VER3, np->n_fhp, np->n_fhsize);
+ nfsm_chain_add_32(error, &nmreq, *mode);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request(np, NULL, &nmreq, NFSPROC_ACCESS, ctx,
+ &nmrep, &xid, &status);
+ nfsm_chain_postop_attr_update(error, &nmrep, np, &xid);
+ if (!error)
+ error = status;
+ nfsm_chain_get_32(error, &nmrep, access);
+ nfsmout_if(error);
- nfsstats.rpccnt[NFSPROC_ACCESS]++;
- nfsm_reqhead(vp, NFSPROC_ACCESS, NFSX_FH(v3) + NFSX_UNSIGNED);
- nfsm_fhtom(vp, v3);
- nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED);
- *tl = txdr_unsigned(wmode);
- nfsm_request(vp, NFSPROC_ACCESS, p, cred, &xid);
- nfsm_postop_attr(vp, attrflag, &xid);
- if (!error) {
- nfsm_dissect(tl, u_int32_t *, NFSX_UNSIGNED);
- rmode = fxdr_unsigned(u_int32_t, *tl);
- np->n_mode = rmode;
- np->n_modeuid = cred->cr_uid;
- np->n_modestamp = time_second;
- }
- nfsm_reqdone;
- return error;
+ uid = kauth_cred_getuid(vfs_context_ucred(ctx));
+ slot = nfs_node_mode_slot(np, uid, 1);
+ np->n_modeuid[slot] = uid;
+ microuptime(&now);
+ np->n_modestamp[slot] = now.tv_sec;
+ np->n_mode[slot] = access;
+
+ /*
+ * If we asked for DELETE but didn't get it, the server
+ * may simply not support returning that bit (possible
+ * on UNIX systems). So, we'll assume that it is OK,
+ * and just let any subsequent delete action fail if it
+ * really isn't deletable.
+ */
+ if ((*mode & NFS_ACCESS_DELETE) &&
+ !(np->n_mode[slot] & NFS_ACCESS_DELETE))
+ np->n_mode[slot] |= NFS_ACCESS_DELETE;
+ /* pass back the mode returned with this request */
+ *mode = np->n_mode[slot];
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+ return (error);
}
/*
- * nfs access vnode op.
- * For nfs version 2, just return ok. File accesses may fail later.
- * For nfs version 3, use the access rpc to check accessibility. If file modes
+ * NFS access vnode op.
+ * For NFS version 2, just return ok. File accesses may fail later.
+ * For NFS version 3+, use the access RPC to check accessibility. If file modes
* are changed on the server, accesses might still fail later.
*/
-static int
-nfs_access(ap)
- struct vop_access_args /* {
- struct vnode *a_vp;
- int a_mode;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+int
+nfs_vnop_access(
+ struct vnop_access_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_action;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- int error = 0;
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ int error = 0, slot, dorpc;
u_long mode, wmode;
- int v3 = NFS_ISV3(vp);
- struct nfsnode *np = VTONFS(vp);
+ nfsnode_t np = VTONFS(vp);
+ struct nfsmount *nmp;
+ int nfsvers;
+ struct timeval now;
+ uid_t uid;
+
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ if (nfsvers == NFS_VER2) {
+ if ((ap->a_action & KAUTH_VNODE_WRITE_RIGHTS) &&
+ vfs_isrdonly(vnode_mount(vp)))
+ return (EROFS);
+ return (0);
+ }
/*
- * For nfs v3, do an access rpc, otherwise you are stuck emulating
+ * For NFS v3, do an access rpc, otherwise you are stuck emulating
* ufs_access() locally using the vattr. This may not be correct,
* since the server may apply other access criteria such as
* client uid-->server uid mapping that we do not know about, but
* this is better than just returning anything that is lying about
* in the cache.
*/
- if (v3) {
- if (ap->a_mode & VREAD)
- mode = NFSV3ACCESS_READ;
- else
- mode = 0;
- if (vp->v_type == VDIR) {
- if (ap->a_mode & VWRITE)
- mode |= NFSV3ACCESS_MODIFY |
- NFSV3ACCESS_EXTEND | NFSV3ACCESS_DELETE;
- if (ap->a_mode & VEXEC)
- mode |= NFSV3ACCESS_LOOKUP;
- } else {
- if (ap->a_mode & VWRITE)
- mode |= NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND;
- if (ap->a_mode & VEXEC)
- mode |= NFSV3ACCESS_EXECUTE;
- }
- /* XXX safety belt, only make blanket request if caching */
- if (nfsaccess_cache_timeout > 0) {
- wmode = NFSV3ACCESS_READ | NFSV3ACCESS_MODIFY |
- NFSV3ACCESS_EXTEND | NFSV3ACCESS_EXECUTE |
- NFSV3ACCESS_DELETE | NFSV3ACCESS_LOOKUP;
- } else
- wmode = mode;
-
- /*
- * Does our cached result allow us to give a definite yes to
- * this request?
- */
- if (time_second < np->n_modestamp + nfsaccess_cache_timeout &&
- ap->a_cred->cr_uid == np->n_modeuid &&
- (np->n_mode & mode) == mode) {
- /* nfsstats.accesscache_hits++; */
- } else {
- /*
- * Either a no, or a don't know. Go to the wire.
- */
- /* nfsstats.accesscache_misses++; */
- error = nfs3_access_otw(vp, wmode, ap->a_p,ap->a_cred);
- if (!error) {
- if ((np->n_mode & mode) != mode)
- error = EACCES;
- }
- }
- } else
- return (nfsspec_access(ap)); /* NFSv2 case checks for EROFS here */
+
/*
- * Disallow write attempts on filesystems mounted read-only;
- * unless the file is a socket, fifo, or a block or character
- * device resident on the filesystem.
- * CSM - moved EROFS check down per NetBSD rev 1.71. So you
- * get the correct error value with layered filesystems.
- * EKN - moved the return(error) below this so it does get called.
+ * Convert KAUTH primitives to NFS access rights.
*/
- if (!error && (ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
- switch (vp->v_type) {
- case VREG: case VDIR: case VLNK:
- error = EROFS;
- default:
- break;
+ mode = 0;
+ if (vnode_isdir(vp)) {
+ /* directory */
+ if (ap->a_action &
+ (KAUTH_VNODE_LIST_DIRECTORY |
+ KAUTH_VNODE_READ_EXTATTRIBUTES))
+ mode |= NFS_ACCESS_READ;
+ if (ap->a_action & KAUTH_VNODE_SEARCH)
+ mode |= NFS_ACCESS_LOOKUP;
+ if (ap->a_action &
+ (KAUTH_VNODE_ADD_FILE |
+ KAUTH_VNODE_ADD_SUBDIRECTORY))
+ mode |= NFS_ACCESS_MODIFY | NFS_ACCESS_EXTEND;
+ if (ap->a_action & KAUTH_VNODE_DELETE_CHILD)
+ mode |= NFS_ACCESS_MODIFY;
+ } else {
+ /* file */
+ if (ap->a_action &
+ (KAUTH_VNODE_READ_DATA |
+ KAUTH_VNODE_READ_EXTATTRIBUTES))
+ mode |= NFS_ACCESS_READ;
+ if (ap->a_action & KAUTH_VNODE_WRITE_DATA)
+ mode |= NFS_ACCESS_MODIFY | NFS_ACCESS_EXTEND;
+ if (ap->a_action & KAUTH_VNODE_APPEND_DATA)
+ mode |= NFS_ACCESS_EXTEND;
+ if (ap->a_action & KAUTH_VNODE_EXECUTE)
+ mode |= NFS_ACCESS_EXECUTE;
+ }
+ /* common */
+ if (ap->a_action & KAUTH_VNODE_DELETE)
+ mode |= NFS_ACCESS_DELETE;
+ if (ap->a_action &
+ (KAUTH_VNODE_WRITE_ATTRIBUTES |
+ KAUTH_VNODE_WRITE_EXTATTRIBUTES |
+ KAUTH_VNODE_WRITE_SECURITY))
+ mode |= NFS_ACCESS_MODIFY;
+ /* XXX this is pretty dubious */
+ if (ap->a_action & KAUTH_VNODE_CHANGE_OWNER)
+ mode |= NFS_ACCESS_MODIFY;
+
+ /* if caching, always ask for every right */
+ if (nfs_access_cache_timeout > 0) {
+ wmode = NFS_ACCESS_READ | NFS_ACCESS_MODIFY |
+ NFS_ACCESS_EXTEND | NFS_ACCESS_EXECUTE |
+ NFS_ACCESS_DELETE | NFS_ACCESS_LOOKUP;
+ } else {
+ wmode = mode;
+ }
+
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+
+ /*
+ * Does our cached result allow us to give a definite yes to
+ * this request?
+ */
+ uid = kauth_cred_getuid(vfs_context_ucred(ctx));
+ slot = nfs_node_mode_slot(np, uid, 0);
+ dorpc = 1;
+ if (NMODEVALID(np, slot)) {
+ microuptime(&now);
+ if ((now.tv_sec < (np->n_modestamp[slot] + nfs_access_cache_timeout)) &&
+ ((np->n_mode[slot] & mode) == mode)) {
+ /* OSAddAtomic(1, (SInt32*)&nfsstats.accesscache_hits); */
+ dorpc = 0;
+ wmode = np->n_mode[slot];
}
}
+ if (dorpc) {
+ /* Either a no, or a don't know. Go to the wire. */
+ /* OSAddAtomic(1, (SInt32*)&nfsstats.accesscache_misses); */
+ error = nmp->nm_funcs->nf_access_rpc(np, &wmode, ctx);
+ }
+ if (!error && ((wmode & mode) != mode))
+ error = EACCES;
+ nfs_unlock(np);
+
return (error);
}
/*
- * nfs open vnode op
- * Check to see if the type is ok
- * and that deletion is not in progress.
- * For paged in text files, you will need to flush the page cache
- * if consistency is lost.
+ * NFS open vnode op
*/
-/* ARGSUSED */
-
-static int
-nfs_open(ap)
- struct vop_open_args /* {
- struct vnode *a_vp;
- int a_mode;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+int
+nfs3_vnop_open(
+ struct vnop_open_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_mode;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- struct nfsnode *np = VTONFS(vp);
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- struct vattr vattr;
- int error;
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ struct nfsmount *nmp;
+ struct nfs_vattr nvattr;
+ enum vtype vtype;
+ int error, nfsvers;
- if (vp->v_type != VREG && vp->v_type != VDIR && vp->v_type != VLNK) {
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ vtype = vnode_vtype(vp);
+ if ((vtype != VREG) && (vtype != VDIR) && (vtype != VLNK))
return (EACCES);
+ if (ISSET(np->n_flag, NUPDATESIZE))
+ nfs_data_update_size(np, 0);
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+ if (np->n_flag & NNEEDINVALIDATE) {
+ np->n_flag &= ~NNEEDINVALIDATE;
+ nfs_unlock(np);
+ nfs_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, ctx, 1);
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
}
- /*
- * Get a valid lease. If cached data is stale, flush it.
- */
- if (nmp->nm_flag & NFSMNT_NQNFS) {
- if (NQNFS_CKINVALID(vp, np, ND_READ)) {
- do {
- error = nqnfs_getlease(vp, ND_READ, ap->a_cred,
- ap->a_p);
- } while (error == NQNFS_EXPIRED);
- if (error)
+ if (np->n_flag & NMODIFIED) {
+ nfs_unlock(np);
+ if ((error = nfs_vinvalbuf(vp, V_SAVE, ctx, 1)) == EINTR)
+ return (error);
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+ if (vtype == VDIR)
+ np->n_direofoffset = 0;
+ NATTRINVALIDATE(np); /* For Open/Close consistency */
+ error = nfs_getattr(np, &nvattr, ctx, 1);
+ if (error) {
+ nfs_unlock(np);
return (error);
- if (np->n_lrev != np->n_brev ||
- (np->n_flag & NQNFSNONCACHE)) {
- if ((error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred,
- ap->a_p, 1)) == EINTR)
- return (error);
- np->n_brev = np->n_lrev;
- }
}
+ if (vtype == VDIR) {
+ /* if directory changed, purge any name cache entries */
+ if (NFS_CHANGED_NC(nfsvers, np, &nvattr)) {
+ np->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(vp);
+ }
+ NFS_CHANGED_UPDATE_NC(nfsvers, np, &nvattr);
+ }
+ NFS_CHANGED_UPDATE(nfsvers, np, &nvattr);
} else {
- if (np->n_flag & NMODIFIED) {
- if ((error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred,
- ap->a_p, 1)) == EINTR)
- return (error);
- np->n_attrstamp = 0;
- if (vp->v_type == VDIR)
+ NATTRINVALIDATE(np); /* For Open/Close consistency */
+ error = nfs_getattr(np, &nvattr, ctx, 1);
+ if (error) {
+ nfs_unlock(np);
+ return (error);
+ }
+ if (NFS_CHANGED(nfsvers, np, &nvattr)) {
+ if (vtype == VDIR) {
np->n_direofoffset = 0;
- error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
- if (error)
+ nfs_invaldir(np);
+ /* purge name cache entries */
+ if (NFS_CHANGED_NC(nfsvers, np, &nvattr)) {
+ np->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(vp);
+ }
+ }
+ nfs_unlock(np);
+ if ((error = nfs_vinvalbuf(vp, V_SAVE, ctx, 1)) == EINTR)
return (error);
- np->n_mtime = vattr.va_mtime.tv_sec;
- } else {
- error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
- if (error)
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
return (error);
- if (np->n_mtime != vattr.va_mtime.tv_sec) {
- if (vp->v_type == VDIR)
- np->n_direofoffset = 0;
- if ((error = nfs_vinvalbuf(vp, V_SAVE,
- ap->a_cred, ap->a_p, 1)) == EINTR)
- return (error);
- np->n_mtime = vattr.va_mtime.tv_sec;
- }
+ if (vtype == VDIR)
+ NFS_CHANGED_UPDATE_NC(nfsvers, np, &nvattr);
+ NFS_CHANGED_UPDATE(nfsvers, np, &nvattr);
}
}
- if ((nmp->nm_flag & NFSMNT_NQNFS) == 0)
- np->n_attrstamp = 0; /* For Open/Close consistency */
+ nfs_unlock(np);
return (0);
}
/*
- * nfs close vnode op
+ * NFS close vnode op
* What an NFS client should do upon close after writing is a debatable issue.
* Most NFS clients push delayed writes to the server upon close, basically for
* two reasons:
* The current code does the following:
* for NFS Version 2 - play it safe and flush/invalidate all dirty buffers
* for NFS Version 3 - flush dirty buffers to the server but don't invalidate
- * or commit them (this satisfies 1 and 2 except for the
- * case where the server crashes after this close but
- * before the commit RPC, which is felt to be "good
- * enough". Changing the last argument to nfs_flush() to
- * a 1 would force a commit operation, if it is felt a
- * commit is necessary now.
- * for NQNFS - do nothing now, since 2 is dealt with via leases and
- * 1 should be dealt with via an fsync() system call for
- * cases where write errors are important.
+ * them.
*/
-/* ARGSUSED */
-static int
-nfs_close(ap)
- struct vop_close_args /* {
+int
+nfs3_vnop_close(
+ struct vnop_close_args /* {
struct vnodeop_desc *a_desc;
- struct vnode *a_vp;
- int a_fflag;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+ vnode_t a_vp;
+ int a_fflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct nfsnode *np = VTONFS(vp);
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ struct nfsmount *nmp;
+ int nfsvers;
int error = 0;
- if (vp->v_type == VREG) {
-#if DIAGNOSTIC
- register struct sillyrename *sp = np->n_sillyrename;
- if (sp)
- kprintf("nfs_close: %s, dvp=%x, vp=%x, ap=%x, np=%x, sp=%x\n",
- &sp->s_name[0], (unsigned)(sp->s_dvp), (unsigned)vp,
- (unsigned)ap, (unsigned)np, (unsigned)sp);
-#endif
- if ((VFSTONFS(vp->v_mount)->nm_flag & NFSMNT_NQNFS) == 0 &&
- (np->n_flag & NMODIFIED)) {
- if (NFS_ISV3(vp)) {
- error = nfs_flush(vp, ap->a_cred, MNT_WAIT, ap->a_p, 1);
- /*
- * We cannot clear the NMODIFIED bit in np->n_flag due to
- * potential races with other processes
- * NMODIFIED is a hint
- */
- /* np->n_flag &= ~NMODIFIED; */
- } else
- error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1);
- np->n_attrstamp = 0;
- }
- if (np->n_flag & NWRITEERR) {
+ if (vnode_vtype(vp) != VREG)
+ return (0);
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ if (ISSET(np->n_flag, NUPDATESIZE))
+ nfs_data_update_size(np, 0);
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+ if (np->n_flag & NNEEDINVALIDATE) {
+ np->n_flag &= ~NNEEDINVALIDATE;
+ nfs_unlock(np);
+ nfs_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, ctx, 1);
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+ }
+ if (np->n_flag & NMODIFIED) {
+ nfs_unlock(np);
+ if (nfsvers != NFS_VER2)
+ error = nfs_flush(np, MNT_WAIT, vfs_context_thread(ctx), 0);
+ else
+ error = nfs_vinvalbuf(vp, V_SAVE, ctx, 1);
+ if (error)
+ return (error);
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ NATTRINVALIDATE(np);
+ }
+ if (np->n_flag & NWRITEERR) {
np->n_flag &= ~NWRITEERR;
error = np->n_error;
- }
}
+ nfs_unlock(np);
return (error);
}
-/*
- * nfs getattr call from vfs.
- */
-static int
-nfs_getattr(ap)
- struct vop_getattr_args /* {
- struct vnode *a_vp;
- struct vattr *a_vap;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+
+int
+nfs3_getattr_rpc(
+ nfsnode_t np,
+ mount_t mp,
+ u_char *fhp,
+ size_t fhsize,
+ vfs_context_t ctx,
+ struct nfs_vattr *nvap,
+ u_int64_t *xidp)
{
- register struct vnode *vp = ap->a_vp;
- register struct nfsnode *np = VTONFS(vp);
- register caddr_t cp;
- register u_long *tl;
- register int t1, t2;
- caddr_t bpos, dpos;
- int error = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(vp);
+ struct nfsmount *nmp = mp ? VFSTONFS(mp) : NFSTONMP(np);
+ int error = 0, status, nfsvers;
+ struct nfsm_chain nmreq, nmrep;
+
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq, NFSX_FH(nfsvers));
+ if (nfsvers != NFS_VER2)
+ nfsm_chain_add_32(error, &nmreq, fhsize);
+ nfsm_chain_add_opaque(error, &nmreq, fhp, fhsize);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request(np, mp, &nmreq, NFSPROC_GETATTR, ctx,
+ &nmrep, xidp, &status);
+ if (!error)
+ error = status;
+ nfsmout_if(error);
+ error = nfs_parsefattr(&nmrep, nfsvers, nvap);
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+ return (error);
+}
+
+
+int
+nfs_getattr(nfsnode_t np, struct nfs_vattr *nvap, vfs_context_t ctx, int alreadylocked)
+{
+ struct nfsmount *nmp;
+ int error = 0, lockerror = ENOENT, nfsvers, avoidfloods;
u_int64_t xid;
- int avoidfloods;
-
- FSDBG_TOP(513, np->n_size, np, np->n_vattr.va_size, np->n_flag);
- /*
- * Update local times for special files.
- */
- if (np->n_flag & (NACC | NUPD))
+
+ FSDBG_TOP(513, np->n_size, np, np->n_vattr.nva_size, np->n_flag);
+
+ /* Update local times for special files. */
+ if (np->n_flag & (NACC | NUPD)) {
+ if (!alreadylocked)
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
np->n_flag |= NCHG;
+ if (!alreadylocked)
+ nfs_unlock(np);
+ }
+ /* Update size, if necessary */
+ if (!alreadylocked && ISSET(np->n_flag, NUPDATESIZE))
+ nfs_data_update_size(np, 0);
+
/*
* First look in the cache.
*/
- if ((error = nfs_getattrcache(vp, ap->a_vap)) == 0) {
- FSDBG_BOT(513, np->n_size, 0, np->n_vattr.va_size, np->n_flag);
- return (0);
- }
- if (error != ENOENT) {
- FSDBG_BOT(513, np->n_size, error, np->n_vattr.va_size,
- np->n_flag);
- return (error);
- }
- error = 0;
+ if ((error = nfs_getattrcache(np, nvap, alreadylocked)) == 0)
+ goto nfsmout;
+ if (error != ENOENT)
+ goto nfsmout;
- if (v3 && nfsaccess_cache_timeout > 0) {
- /* nfsstats.accesscache_misses++; */
- if (error = nfs3_access_otw(vp, NFSV3ACCESS_ALL, ap->a_p,
- ap->a_cred))
- return (error);
- if ((error = nfs_getattrcache(vp, ap->a_vap)) == 0)
- return (0);
- if (error != ENOENT)
- return (error);
- error = 0;
+ nmp = NFSTONMP(np);
+ if (!nmp) {
+ error = ENXIO;
+ goto nfsmout;
}
- avoidfloods = 0;
-tryagain:
- nfsstats.rpccnt[NFSPROC_GETATTR]++;
- nfsm_reqhead(vp, NFSPROC_GETATTR, NFSX_FH(v3));
- nfsm_fhtom(vp, v3);
- nfsm_request(vp, NFSPROC_GETATTR, ap->a_p, ap->a_cred, &xid);
- if (!error) {
- nfsm_loadattr(vp, ap->a_vap, &xid);
- if (!xid) { /* out-of-order rpc - attributes were dropped */
- m_freem(mrep);
- FSDBG(513, -1, np, np->n_xid << 32, np->n_xid);
- if (avoidfloods++ < 100)
- goto tryagain;
- /*
- * avoidfloods>1 is bizarre. at 100 pull the plug
- */
- panic("nfs_getattr: getattr flood\n");
+ nfsvers = nmp->nm_vers;
+
+ /*
+ * Try to get both the attributes and access info by making an
+ * ACCESS call and seeing if it returns updated attributes.
+ * But don't bother if we aren't caching access info or if the
+ * attributes returned wouldn't be cached.
+ */
+ if ((nfsvers != NFS_VER2) && (nfs_access_cache_timeout > 0)) {
+ if (!alreadylocked && ((error = lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE))))
+ goto nfsmout;
+ if (nfs_attrcachetimeout(np) > 0) {
+ /* OSAddAtomic(1, (SInt32*)&nfsstats.accesscache_misses); */
+ u_long mode = NFS_ACCESS_ALL;
+ error = nmp->nm_funcs->nf_access_rpc(np, &mode, ctx);
+ if (error)
+ goto nfsmout;
+ if ((error = nfs_getattrcache(np, nvap, 1)) == 0)
+ goto nfsmout;
+ if (error != ENOENT)
+ goto nfsmout;
+ error = 0;
+ }
+ } else if (!alreadylocked) {
+ error = lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE);
+ nfsmout_if(error);
+ }
+ avoidfloods = 0;
+tryagain:
+ error = nmp->nm_funcs->nf_getattr_rpc(np, NULL, np->n_fhp, np->n_fhsize, ctx, nvap, &xid);
+ nfsmout_if(error);
+ error = nfs_loadattrcache(np, nvap, &xid, 0);
+ nfsmout_if(error);
+ if (!xid) { /* out-of-order rpc - attributes were dropped */
+ FSDBG(513, -1, np, np->n_xid >> 32, np->n_xid);
+ if (avoidfloods++ < 100)
+ goto tryagain;
+ /* avoidfloods>1 is bizarre. at 100 pull the plug */
+ panic("nfs_getattr: getattr flood\n");
+ }
+ if (NFS_CHANGED(nfsvers, np, nvap)) {
+ vnode_t vp = NFSTOV(np);
+ enum vtype vtype = vnode_vtype(vp);
+ FSDBG(513, -1, np, -1, np);
+ if (vtype == VDIR) {
+ nfs_invaldir(np);
+ /* purge name cache entries */
+ if (NFS_CHANGED_NC(nfsvers, np, nvap)) {
+ np->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(vp);
+ }
}
- if (np->n_mtime != ap->a_vap->va_mtime.tv_sec) {
- FSDBG(513, -1, np, -1, vp);
- if (vp->v_type == VDIR)
- nfs_invaldir(vp);
- error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred,
- ap->a_p, 1);
+ if (!alreadylocked) {
+ nfs_unlock(np);
+ lockerror = ENOENT;
+ error = nfs_vinvalbuf(vp, V_SAVE, ctx, 1);
FSDBG(513, -1, np, -2, error);
if (!error)
- np->n_mtime = ap->a_vap->va_mtime.tv_sec;
+ error = lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE);
+ if (!error) {
+ if (vtype == VDIR)
+ NFS_CHANGED_UPDATE_NC(nfsvers, np, nvap);
+ NFS_CHANGED_UPDATE(nfsvers, np, nvap);
+ }
+ } else {
+ /* invalidate later */
+ np->n_flag |= NNEEDINVALIDATE;
}
}
- nfsm_reqdone;
-
- FSDBG_BOT(513, np->n_size, -1, np->n_vattr.va_size, error);
+nfsmout:
+ if (!lockerror)
+ nfs_unlock(np);
+ FSDBG_BOT(513, np->n_size, error, np->n_vattr.nva_size, np->n_flag);
return (error);
}
/*
- * nfs setattr call.
+ * NFS getattr call from vfs.
*/
static int
-nfs_setattr(ap)
- struct vop_setattr_args /* {
+nfs3_vnop_getattr(
+ struct vnop_getattr_args /* {
struct vnodeop_desc *a_desc;
- struct vnode *a_vp;
- struct vattr *a_vap;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+ vnode_t a_vp;
+ struct vnode_attr *a_vap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct nfsnode *np = VTONFS(vp);
- register struct vattr *vap = ap->a_vap;
- int error = 0;
- u_quad_t tsize;
+ int error;
+ struct nfs_vattr nva;
+ struct vnode_attr *vap = ap->a_vap;
+ dev_t rdev;
-#ifndef nolint
- tsize = (u_quad_t)0;
-#endif
+ error = nfs_getattr(VTONFS(ap->a_vp), &nva, ap->a_context, 0);
+ if (error)
+ return (error);
-#ifdef XXX /* enable this code soon! (but test it first) */
- /*
- * Setting of flags is not supported.
- */
- if (vap->va_flags != VNOVAL)
- return (EOPNOTSUPP);
-#endif
+ /* copy nva to *a_vap */
+ VATTR_RETURN(vap, va_type, nva.nva_type);
+ VATTR_RETURN(vap, va_mode, nva.nva_mode);
+ rdev = makedev(nva.nva_rawdev.specdata1, nva.nva_rawdev.specdata2);
+ VATTR_RETURN(vap, va_rdev, rdev);
+ VATTR_RETURN(vap, va_uid, nva.nva_uid);
+ VATTR_RETURN(vap, va_gid, nva.nva_gid);
+ VATTR_RETURN(vap, va_nlink, nva.nva_nlink);
+ VATTR_RETURN(vap, va_fileid, nva.nva_fileid);
+ VATTR_RETURN(vap, va_data_size, nva.nva_size);
+ VATTR_RETURN(vap, va_data_alloc, nva.nva_bytes);
+ VATTR_RETURN(vap, va_iosize, nfs_iosize);
+ vap->va_access_time.tv_sec = nva.nva_timesec[NFSTIME_ACCESS];
+ vap->va_access_time.tv_nsec = nva.nva_timensec[NFSTIME_ACCESS];
+ VATTR_SET_SUPPORTED(vap, va_access_time);
+ vap->va_modify_time.tv_sec = nva.nva_timesec[NFSTIME_MODIFY];
+ vap->va_modify_time.tv_nsec = nva.nva_timensec[NFSTIME_MODIFY];
+ VATTR_SET_SUPPORTED(vap, va_modify_time);
+ vap->va_change_time.tv_sec = nva.nva_timesec[NFSTIME_CHANGE];
+ vap->va_change_time.tv_nsec = nva.nva_timensec[NFSTIME_CHANGE];
+ VATTR_SET_SUPPORTED(vap, va_change_time);
+
+ // VATTR_RETURN(vap, va_encoding, 0xffff /* kTextEncodingUnknown */);
+ return (error);
+}
- /*
- * Disallow write attempts if the filesystem is mounted read-only.
- */
- if ((vap->va_flags != VNOVAL || vap->va_uid != (uid_t)VNOVAL ||
- vap->va_gid != (gid_t)VNOVAL || vap->va_atime.tv_sec != VNOVAL ||
- vap->va_mtime.tv_sec != VNOVAL || vap->va_mode != (mode_t)VNOVAL) &&
- (vp->v_mount->mnt_flag & MNT_RDONLY))
+/*
+ * NFS setattr call.
+ */
+static int
+nfs_vnop_setattr(
+ struct vnop_setattr_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ struct vnode_attr *a_vap;
+ vfs_context_t a_context;
+ } */ *ap)
+{
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ struct nfsmount *nmp;
+ struct vnode_attr *vap = ap->a_vap;
+ int error = 0;
+ int biosize, nfsvers;
+ u_quad_t origsize;
+ struct nfs_dulookup dul;
+ nfsnode_t dnp = NULL;
+ vnode_t dvp = NULL;
+ const char *vname = NULL;
+
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ biosize = nmp->nm_biosize;
+
+ /* Disallow write attempts if the filesystem is mounted read-only. */
+ if (vnode_vfsisrdonly(vp))
return (EROFS);
- if (vap->va_size != VNOVAL) {
- switch (vp->v_type) {
- case VDIR:
- return (EISDIR);
- case VCHR:
- case VBLK:
- case VSOCK:
- case VFIFO:
- if (vap->va_mtime.tv_sec == VNOVAL &&
- vap->va_atime.tv_sec == VNOVAL &&
- vap->va_mode == (u_short)VNOVAL &&
- vap->va_uid == (uid_t)VNOVAL &&
- vap->va_gid == (gid_t)VNOVAL)
+
+ origsize = np->n_size;
+ if (VATTR_IS_ACTIVE(vap, va_data_size)) {
+ switch (vnode_vtype(vp)) {
+ case VDIR:
+ return (EISDIR);
+ case VCHR:
+ case VBLK:
+ case VSOCK:
+ case VFIFO:
+ if (!VATTR_IS_ACTIVE(vap, va_modify_time) &&
+ !VATTR_IS_ACTIVE(vap, va_access_time) &&
+ !VATTR_IS_ACTIVE(vap, va_mode) &&
+ !VATTR_IS_ACTIVE(vap, va_uid) &&
+ !VATTR_IS_ACTIVE(vap, va_gid)) {
return (0);
- vap->va_size = VNOVAL;
- break;
- default:
+ }
+ VATTR_CLEAR_ACTIVE(vap, va_data_size);
+ break;
+ default:
/*
* Disallow write attempts if the filesystem is
* mounted read-only.
*/
- if (vp->v_mount->mnt_flag & MNT_RDONLY)
+ if (vnode_vfsisrdonly(vp))
return (EROFS);
- FSDBG_TOP(512, np->n_size, vap->va_size,
- np->n_vattr.va_size, np->n_flag);
- if (np->n_flag & NMODIFIED) {
- if (vap->va_size == 0)
- error = nfs_vinvalbuf(vp, 0,
- ap->a_cred, ap->a_p, 1);
- else
- error = nfs_vinvalbuf(vp, V_SAVE,
- ap->a_cred, ap->a_p, 1);
- if (error) {
- printf("nfs_setattr: nfs_vinvalbuf %d\n", error);
- FSDBG_BOT(512, np->n_size, vap->va_size,
- np->n_vattr.va_size, -1);
- return (error);
- }
- } else if (np->n_size > vap->va_size) { /* shrinking? */
- daddr_t obn, bn;
- int biosize;
- struct buf *bp;
+ FSDBG_TOP(512, np->n_size, vap->va_data_size,
+ np->n_vattr.nva_size, np->n_flag);
+ /* clear NNEEDINVALIDATE, if set */
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+ if (np->n_flag & NNEEDINVALIDATE)
+ np->n_flag &= ~NNEEDINVALIDATE;
+ nfs_unlock(np);
+ /* flush everything */
+ error = nfs_vinvalbuf(vp, (vap->va_data_size ? V_SAVE : 0) , ctx, 1);
+ if (error) {
+ printf("nfs_setattr: nfs_vinvalbuf %d\n", error);
+ FSDBG_BOT(512, np->n_size, vap->va_data_size, np->n_vattr.nva_size, -1);
+ return (error);
+ }
+ nfs_data_lock(np, NFS_NODE_LOCK_EXCLUSIVE);
+ if (np->n_size > vap->va_data_size) { /* shrinking? */
+ daddr64_t obn, bn;
+ int neweofoff, mustwrite;
+ struct nfsbuf *bp;
- biosize = min(vp->v_mount->mnt_stat.f_iosize,
- PAGE_SIZE);
obn = (np->n_size - 1) / biosize;
- bn = vap->va_size / biosize;
- for ( ; obn >= bn; obn--)
- if (incore(vp, obn)) {
- bp = getblk(vp, obn, biosize, 0,
- 0, BLK_READ);
- FSDBG(512, bp, bp->b_flags,
- 0, obn);
- SET(bp->b_flags, B_INVAL);
- brelse(bp);
+ bn = vap->va_data_size / biosize;
+ for ( ; obn >= bn; obn--) {
+ if (!nfs_buf_is_incore(np, obn))
+ continue;
+ error = nfs_buf_get(np, obn, biosize, NULL, NBLK_READ, &bp);
+ if (error)
+ continue;
+ if (obn != bn) {
+ FSDBG(512, bp, bp->nb_flags, 0, obn);
+ SET(bp->nb_flags, NB_INVAL);
+ nfs_buf_release(bp, 1);
+ continue;
+ }
+ mustwrite = 0;
+ neweofoff = vap->va_data_size - NBOFF(bp);
+ /* check for any dirty data before the new EOF */
+ if ((bp->nb_dirtyend > 0) && (bp->nb_dirtyoff < neweofoff)) {
+ /* clip dirty range to EOF */
+ if (bp->nb_dirtyend > neweofoff) {
+ bp->nb_dirtyend = neweofoff;
+ if (bp->nb_dirtyoff >= bp->nb_dirtyend)
+ bp->nb_dirtyoff = bp->nb_dirtyend = 0;
+ }
+ if ((bp->nb_dirtyend > 0) && (bp->nb_dirtyoff < neweofoff))
+ mustwrite++;
+ }
+ bp->nb_dirty &= (1 << round_page_32(neweofoff)/PAGE_SIZE) - 1;
+ if (bp->nb_dirty)
+ mustwrite++;
+ if (!mustwrite) {
+ FSDBG(512, bp, bp->nb_flags, 0, obn);
+ SET(bp->nb_flags, NB_INVAL);
+ nfs_buf_release(bp, 1);
+ continue;
}
+ /* gotta write out dirty data before invalidating */
+ /* (NB_STABLE indicates that data writes should be FILESYNC) */
+ /* (NB_NOCACHE indicates buffer should be discarded) */
+ CLR(bp->nb_flags, (NB_DONE | NB_ERROR | NB_INVAL | NB_ASYNC | NB_READ));
+ SET(bp->nb_flags, NB_STABLE | NB_NOCACHE);
+ if (!IS_VALID_CRED(bp->nb_wcred)) {
+ kauth_cred_t cred = vfs_context_ucred(ctx);
+ kauth_cred_ref(cred);
+ bp->nb_wcred = cred;
+ }
+ error = nfs_buf_write(bp);
+ // Note: bp has been released
+ if (error) {
+ FSDBG(512, bp, 0xd00dee, 0xbad, error);
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ np->n_error = error;
+ np->n_flag |= NWRITEERR;
+ /*
+ * There was a write error and we need to
+ * invalidate attrs and flush buffers in
+ * order to sync up with the server.
+ * (if this write was extending the file,
+ * we may no longer know the correct size)
+ */
+ NATTRINVALIDATE(np);
+ nfs_unlock(np);
+ nfs_data_unlock(np);
+ nfs_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, ctx, 1);
+ nfs_data_lock(np, NFS_NODE_LOCK_EXCLUSIVE);
+ error = 0;
+ }
+ }
}
- tsize = np->n_size;
- np->n_size = np->n_vattr.va_size = vap->va_size;
- ubc_setsize(vp, (off_t)vap->va_size); /* XXX */
- };
- } else if ((vap->va_mtime.tv_sec != VNOVAL ||
- vap->va_atime.tv_sec != VNOVAL) &&
- (np->n_flag & NMODIFIED) && vp->v_type == VREG &&
- (error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred,
- ap->a_p, 1)) == EINTR)
- return (error);
- error = nfs_setattrrpc(vp, vap, ap->a_cred, ap->a_p);
- FSDBG_BOT(512, np->n_size, vap->va_size, np->n_vattr.va_size, error);
- if (error && vap->va_size != VNOVAL) {
- /* make every effort to resync file size w/ server... */
- int err = 0; /* preserve "error" for return */
-
- printf("nfs_setattr: nfs_setattrrpc %d\n", error);
- np->n_size = np->n_vattr.va_size = tsize;
- ubc_setsize(vp, (off_t)np->n_size); /* XXX check error */
- vap->va_size = tsize;
- err = nfs_setattrrpc(vp, vap, ap->a_cred, ap->a_p);
- if (err)
- printf("nfs_setattr1: nfs_setattrrpc %d\n", err);
+ if (vap->va_data_size != np->n_size)
+ ubc_setsize(vp, (off_t)vap->va_data_size); /* XXX error? */
+ origsize = np->n_size;
+ np->n_size = np->n_vattr.nva_size = vap->va_data_size;
+ CLR(np->n_flag, NUPDATESIZE);
+ FSDBG(512, np, np->n_size, np->n_vattr.nva_size, 0xf00d0001);
+ }
+ } else if (VATTR_IS_ACTIVE(vap, va_modify_time) ||
+ VATTR_IS_ACTIVE(vap, va_access_time) ||
+ (vap->va_vaflags & VA_UTIMES_NULL)) {
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_SHARED)))
+ return (error);
+ if ((np->n_flag & NMODIFIED) && (vnode_vtype(vp) == VREG)) {
+ nfs_unlock(np);
+ error = nfs_vinvalbuf(vp, V_SAVE, ctx, 1);
+ if (error == EINTR)
+ return (error);
+ } else {
+ nfs_unlock(np);
+ }
+ }
+ if (VATTR_IS_ACTIVE(vap, va_mode) ||
+ VATTR_IS_ACTIVE(vap, va_uid) ||
+ VATTR_IS_ACTIVE(vap, va_gid)) {
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE))) {
+ if (VATTR_IS_ACTIVE(vap, va_data_size))
+ nfs_data_unlock(np);
+ return (error);
+ }
+ NMODEINVALIDATE(np);
+ nfs_unlock(np);
+ dvp = vnode_getparent(vp);
+ vname = vnode_getname(vp);
+ dnp = (dvp && vname) ? VTONFS(dvp) : NULL;
+ if (dnp) {
+ error = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE);
+ if (error) {
+ dnp = NULL;
+ error = 0;
+ }
+ }
+ if (dnp) {
+ nfs_dulookup_init(&dul, dnp, vname, strlen(vname));
+ nfs_dulookup_start(&dul, dnp, ctx);
+ }
+ }
+
+ error = nmp->nm_funcs->nf_setattr_rpc(np, vap, ctx, 0);
+
+ if (VATTR_IS_ACTIVE(vap, va_mode) ||
+ VATTR_IS_ACTIVE(vap, va_uid) ||
+ VATTR_IS_ACTIVE(vap, va_gid)) {
+ if (dnp) {
+ nfs_dulookup_finish(&dul, dnp, ctx);
+ nfs_unlock(dnp);
+ }
+ if (dvp != NULLVP)
+ vnode_put(dvp);
+ if (vname != NULL)
+ vnode_putname(vname);
+ }
+
+ FSDBG_BOT(512, np->n_size, vap->va_data_size, np->n_vattr.nva_size, error);
+ if (VATTR_IS_ACTIVE(vap, va_data_size)) {
+ if (error && (origsize != np->n_size)) {
+ /* make every effort to resync file size w/ server... */
+ int err; /* preserve "error" for return */
+ np->n_size = np->n_vattr.nva_size = origsize;
+ CLR(np->n_flag, NUPDATESIZE);
+ FSDBG(512, np, np->n_size, np->n_vattr.nva_size, 0xf00d0002);
+ ubc_setsize(vp, (off_t)np->n_size); /* XXX check error */
+ vap->va_data_size = origsize;
+ err = nmp->nm_funcs->nf_setattr_rpc(np, vap, ctx, 0);
+ if (err)
+ printf("nfs_vnop_setattr: nfs%d_setattr_rpc %d %d\n", nfsvers, error, err);
+ }
+ nfs_data_unlock(np);
}
return (error);
}
/*
- * Do an nfs setattr rpc.
+ * Do an NFS setattr RPC.
*/
-static int
-nfs_setattrrpc(vp, vap, cred, procp)
- register struct vnode *vp;
- register struct vattr *vap;
- struct ucred *cred;
- struct proc *procp;
+int
+nfs3_setattr_rpc(
+ nfsnode_t np,
+ struct vnode_attr *vap,
+ vfs_context_t ctx,
+ int alreadylocked)
{
- register struct nfsv2_sattr *sp;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- u_long *tl;
- int error = 0, wccflag = NFSV3_WCCRATTR;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(vp);
+ struct nfsmount *nmp = NFSTONMP(np);
+ int error = 0, lockerror = ENOENT, status, wccpostattr = 0, nfsvers;
u_int64_t xid;
+ struct nfsm_chain nmreq, nmrep;
+
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ VATTR_SET_SUPPORTED(vap, va_mode);
+ VATTR_SET_SUPPORTED(vap, va_uid);
+ VATTR_SET_SUPPORTED(vap, va_gid);
+ VATTR_SET_SUPPORTED(vap, va_data_size);
+ VATTR_SET_SUPPORTED(vap, va_access_time);
+ VATTR_SET_SUPPORTED(vap, va_modify_time);
+
+ if (VATTR_IS_ACTIVE(vap, va_flags)) {
+ if (vap->va_flags) { /* we don't support setting flags */
+ if (vap->va_active & ~VNODE_ATTR_va_flags)
+ return (EINVAL); /* return EINVAL if other attributes also set */
+ else
+ return (ENOTSUP); /* return ENOTSUP for chflags(2) */
+ }
+ /* no flags set, so we'll just ignore it */
+ if (!(vap->va_active & ~VNODE_ATTR_va_flags))
+ return (0); /* no (other) attributes to set, so nothing to do */
+ }
- nfsstats.rpccnt[NFSPROC_SETATTR]++;
- nfsm_reqhead(vp, NFSPROC_SETATTR, NFSX_FH(v3) + NFSX_SATTR(v3));
- nfsm_fhtom(vp, v3);
- if (v3) {
- if (vap->va_mode != (u_short)VNOVAL) {
- nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
- *tl++ = nfs_true;
- *tl = txdr_unsigned(vap->va_mode);
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + NFSX_SATTR(nfsvers));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, np->n_fhp, np->n_fhsize);
+ if (nfsvers == NFS_VER3) {
+ if (VATTR_IS_ACTIVE(vap, va_mode)) {
+ nfsm_chain_add_32(error, &nmreq, TRUE);
+ nfsm_chain_add_32(error, &nmreq, vap->va_mode);
} else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = nfs_false;
+ nfsm_chain_add_32(error, &nmreq, FALSE);
}
- if (vap->va_uid != (uid_t)VNOVAL) {
- nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
- *tl++ = nfs_true;
- *tl = txdr_unsigned(vap->va_uid);
+ if (VATTR_IS_ACTIVE(vap, va_uid)) {
+ nfsm_chain_add_32(error, &nmreq, TRUE);
+ nfsm_chain_add_32(error, &nmreq, vap->va_uid);
} else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = nfs_false;
+ nfsm_chain_add_32(error, &nmreq, FALSE);
}
- if (vap->va_gid != (gid_t)VNOVAL) {
- nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
- *tl++ = nfs_true;
- *tl = txdr_unsigned(vap->va_gid);
+ if (VATTR_IS_ACTIVE(vap, va_gid)) {
+ nfsm_chain_add_32(error, &nmreq, TRUE);
+ nfsm_chain_add_32(error, &nmreq, vap->va_gid);
} else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = nfs_false;
+ nfsm_chain_add_32(error, &nmreq, FALSE);
}
- if (vap->va_size != VNOVAL) {
- nfsm_build(tl, u_long *, 3 * NFSX_UNSIGNED);
- *tl++ = nfs_true;
- txdr_hyper(&vap->va_size, tl);
+ if (VATTR_IS_ACTIVE(vap, va_data_size)) {
+ nfsm_chain_add_32(error, &nmreq, TRUE);
+ nfsm_chain_add_64(error, &nmreq, vap->va_data_size);
} else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = nfs_false;
+ nfsm_chain_add_32(error, &nmreq, FALSE);
}
- if (vap->va_atime.tv_sec != VNOVAL) {
- if (vap->va_atime.tv_sec != time.tv_sec) {
- nfsm_build(tl, u_long *, 3 * NFSX_UNSIGNED);
- *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
- txdr_nfsv3time(&vap->va_atime, tl);
+ if (vap->va_vaflags & VA_UTIMES_NULL) {
+ nfsm_chain_add_32(error, &nmreq, NFS_TIME_SET_TO_SERVER);
+ nfsm_chain_add_32(error, &nmreq, NFS_TIME_SET_TO_SERVER);
+ } else {
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ nfsm_chain_add_32(error, &nmreq, NFS_TIME_SET_TO_CLIENT);
+ nfsm_chain_add_32(error, &nmreq, vap->va_access_time.tv_sec);
+ nfsm_chain_add_32(error, &nmreq, vap->va_access_time.tv_nsec);
} else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
+ nfsm_chain_add_32(error, &nmreq, NFS_TIME_DONT_CHANGE);
}
- } else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);
- }
- if (vap->va_mtime.tv_sec != VNOVAL) {
- if (vap->va_mtime.tv_sec != time.tv_sec) {
- nfsm_build(tl, u_long *, 3 * NFSX_UNSIGNED);
- *tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
- txdr_nfsv3time(&vap->va_mtime, tl);
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ nfsm_chain_add_32(error, &nmreq, NFS_TIME_SET_TO_CLIENT);
+ nfsm_chain_add_32(error, &nmreq, vap->va_modify_time.tv_sec);
+ nfsm_chain_add_32(error, &nmreq, vap->va_modify_time.tv_nsec);
} else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
+ nfsm_chain_add_32(error, &nmreq, NFS_TIME_DONT_CHANGE);
}
+ }
+ nfsm_chain_add_32(error, &nmreq, FALSE);
+ } else {
+ nfsm_chain_add_32(error, &nmreq, VATTR_IS_ACTIVE(vap, va_mode) ?
+ vtonfsv2_mode(vnode_vtype(NFSTOV(np)), vap->va_mode) : -1);
+ nfsm_chain_add_32(error, &nmreq, VATTR_IS_ACTIVE(vap, va_uid) ?
+ vap->va_uid : (uint32_t)-1);
+ nfsm_chain_add_32(error, &nmreq, VATTR_IS_ACTIVE(vap, va_gid) ?
+ vap->va_gid : (uint32_t)-1);
+ nfsm_chain_add_32(error, &nmreq, VATTR_IS_ACTIVE(vap, va_data_size) ?
+ vap->va_data_size : (uint32_t)-1);
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ nfsm_chain_add_32(error, &nmreq, vap->va_access_time.tv_sec);
+ nfsm_chain_add_32(error, &nmreq, (vap->va_access_time.tv_nsec != -1) ?
+ ((uint32_t)vap->va_access_time.tv_nsec / 1000) : 0xffffffff);
+ } else {
+ nfsm_chain_add_32(error, &nmreq, -1);
+ nfsm_chain_add_32(error, &nmreq, -1);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ nfsm_chain_add_32(error, &nmreq, vap->va_modify_time.tv_sec);
+ nfsm_chain_add_32(error, &nmreq, (vap->va_modify_time.tv_nsec != -1) ?
+ ((uint32_t)vap->va_modify_time.tv_nsec / 1000) : 0xffffffff);
} else {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = txdr_unsigned(NFSV3SATTRTIME_DONTCHANGE);
+ nfsm_chain_add_32(error, &nmreq, -1);
+ nfsm_chain_add_32(error, &nmreq, -1);
}
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
- *tl = nfs_false;
+ }
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request(np, NULL, &nmreq, NFSPROC_SETATTR, ctx,
+ &nmrep, &xid, &status);
+ if (!alreadylocked && ((lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE))))
+ error = lockerror;
+ if (nfsvers == NFS_VER3) {
+ struct timespec premtime = { 0, 0 };
+ nfsm_chain_get_wcc_data(error, &nmrep, np, &premtime, &wccpostattr, &xid);
+ nfsmout_if(error);
+ /* if file hadn't changed, update cached mtime */
+ if (nfstimespeccmp(&np->n_mtime, &premtime, ==))
+ NFS_CHANGED_UPDATE(nfsvers, np, &np->n_vattr);
+ /* if directory hadn't changed, update namecache mtime */
+ if ((vnode_vtype(NFSTOV(np)) == VDIR) &&
+ nfstimespeccmp(&np->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, np, &np->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(np);
+ error = status;
} else {
- nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
- if (vap->va_mode == (u_short)VNOVAL)
- sp->sa_mode = VNOVAL;
- else
- sp->sa_mode = vtonfsv2_mode(vp->v_type, vap->va_mode);
- if (vap->va_uid == (uid_t)VNOVAL)
- sp->sa_uid = VNOVAL;
- else
- sp->sa_uid = txdr_unsigned(vap->va_uid);
- if (vap->va_gid == (gid_t)VNOVAL)
- sp->sa_gid = VNOVAL;
- else
- sp->sa_gid = txdr_unsigned(vap->va_gid);
- sp->sa_size = txdr_unsigned(vap->va_size);
- txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
- txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
- }
- nfsm_request(vp, NFSPROC_SETATTR, procp, cred, &xid);
- if (v3) {
- nfsm_wcc_data(vp, wccflag, &xid);
- if (!wccflag && vp->v_type != VBAD) /* EINVAL on VBAD node */
- VTONFS(vp)->n_attrstamp = 0;
- } else
- nfsm_loadattr(vp, (struct vattr *)0, &xid);
- nfsm_reqdone;
+ if (!error)
+ error = status;
+ nfsm_chain_loadattr(error, &nmrep, np, nfsvers, NULL, &xid);
+ }
+nfsmout:
+ if (!alreadylocked && !lockerror)
+ nfs_unlock(np);
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
return (error);
}
/*
- * nfs lookup call, one step at a time...
+ * NFS lookup call, one step at a time...
* First look in cache
- * If not found, unlock the directory nfsnode and do the rpc
+ * If not found, unlock the directory nfsnode and do the RPC
*/
static int
-nfs_lookup(ap)
- struct vop_lookup_args /* {
+nfs_vnop_lookup(
+ struct vnop_lookup_args /* {
struct vnodeop_desc *a_desc;
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+ vnode_t a_dvp;
+ vnode_t *a_vpp;
struct componentname *a_cnp;
- } */ *ap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct componentname *cnp = ap->a_cnp;
- register struct vnode *dvp = ap->a_dvp;
- register struct vnode **vpp = ap->a_vpp;
- register int flags = cnp->cn_flags;
- register struct vnode *newvp;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
+ vfs_context_t ctx = ap->a_context;
+ struct componentname *cnp = ap->a_cnp;
+ vnode_t dvp = ap->a_dvp;
+ vnode_t *vpp = ap->a_vpp;
+ int flags = cnp->cn_flags;
+ vnode_t newvp;
+ nfsnode_t dnp, np;
struct nfsmount *nmp;
- caddr_t bpos, dpos, cp2;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- long len;
- nfsfh_t *fhp;
- struct nfsnode *np;
- int lockparent, wantparent, error = 0, attrflag, fhsize;
- int v3 = NFS_ISV3(dvp);
- struct proc *p = cnp->cn_proc;
- int worldbuildworkaround = 1;
+ mount_t mp;
+ int nfsvers, error, lockerror = ENOENT, isdot, isdotdot, negnamecache;
u_int64_t xid;
+ struct nfs_vattr nvattr;
+ int ngflags;
+ struct vnop_access_args naa;
+ fhandle_t fh;
+ struct nfsreq rq, *req = &rq;
- if ((flags & ISLASTCN) && (dvp->v_mount->mnt_flag & MNT_RDONLY) &&
- (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
- return (EROFS);
*vpp = NULLVP;
- if (dvp->v_type != VDIR)
- return (ENOTDIR);
- lockparent = flags & LOCKPARENT;
- wantparent = flags & (LOCKPARENT|WANTPARENT);
- nmp = VFSTONFS(dvp->v_mount);
- np = VTONFS(dvp);
-
- if (worldbuildworkaround) {
- /*
- * Temporary workaround for world builds to not have dvp go
- * VBAD on during server calls in this routine. When
- * the real ref counting problem is found take this out.
- * Note if this was later and before the nfsm_request
- * set up, the workaround did not work (NOTE other difference
- * was I only put one VREF in that time. Thus it needs
- * to be above the cache_lookup branch or with 2 VREFS. Not
- * sure which. Can't play with world builds right now to see
- * which. VOP_ACCESS could also make it go to server. - EKN
- */
- VREF(dvp); /* hang on to this dvp - EKN */
- VREF(dvp); /* hang on tight - EKN */
- }
- if ((error = cache_lookup(dvp, vpp, cnp)) && error != ENOENT) {
- struct vattr vattr;
- int vpid;
-
- if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, p))) {
- *vpp = NULLVP;
- goto error_return;
- }
+ dnp = VTONFS(dvp);
- /* got to check to make sure the vnode didn't go away if access went to server */
- if ((*vpp)->v_type == VBAD) {
- error = EINVAL;
- goto error_return;
- }
+ mp = vnode_mount(dvp);
+ nmp = VFSTONFS(mp);
+ if (!nmp) {
+ error = ENXIO;
+ goto error_return;
+ }
+ nfsvers = nmp->nm_vers;
+ negnamecache = !(nmp->nm_flag & NFSMNT_NONEGNAMECACHE);
- newvp = *vpp;
- vpid = newvp->v_id;
+ error = lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE);
+ if (!error)
+ error = nfs_getattr(dnp, &nvattr, ctx, 1);
+ if (error)
+ goto error_return;
+ if (NFS_CHANGED_NC(nfsvers, dnp, &nvattr)) {
/*
- * See the comment starting `Step through' in ufs/ufs_lookup.c
- * for an explanation of the locking protocol
+ * This directory has changed on us.
+ * Purge any name cache entries.
*/
- if (dvp == newvp) {
- VREF(newvp);
- error = 0;
- } else if (flags & ISDOTDOT) {
- VOP_UNLOCK(dvp, 0, p);
- error = vget(newvp, LK_EXCLUSIVE, p);
- if (!error && lockparent && (flags & ISLASTCN))
- error = vn_lock(dvp, LK_EXCLUSIVE, p);
- } else {
- error = vget(newvp, LK_EXCLUSIVE, p);
- if (!lockparent || error || !(flags & ISLASTCN))
- VOP_UNLOCK(dvp, 0, p);
- }
- if (!error) {
- if (vpid == newvp->v_id) {
- if (!VOP_GETATTR(newvp, &vattr, cnp->cn_cred, p)
- && vattr.va_ctime.tv_sec == VTONFS(newvp)->n_ctime) {
- nfsstats.lookupcache_hits++;
- if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
- cnp->cn_flags |= SAVENAME;
- error = 0; /* ignore any from VOP_GETATTR */
- goto error_return;
- }
- cache_purge(newvp);
- }
- vput(newvp);
- if (lockparent && dvp != newvp && (flags & ISLASTCN))
- VOP_UNLOCK(dvp, 0, p);
- }
- error = vn_lock(dvp, LK_EXCLUSIVE, p);
- *vpp = NULLVP;
- if (error)
- goto error_return;
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(dvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &nvattr);
}
- /*
- * Got to check to make sure the vnode didn't go away if VOP_GETATTR went to server
- * or callers prior to this blocked and had it go VBAD.
- */
- if (dvp->v_type == VBAD) {
- error = EINVAL;
+ error = cache_lookup(dvp, vpp, cnp);
+ switch (error) {
+ case ENOENT:
+ /* negative cache entry */
+ goto error_return;
+ case 0:
+ /* cache miss */
+ break;
+ case -1:
+ /* cache hit, not really an error */
+ OSAddAtomic(1, (SInt32*)&nfsstats.lookupcache_hits);
+
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
+
+ /* check for directory access */
+ naa.a_vp = dvp;
+ naa.a_action = KAUTH_VNODE_SEARCH;
+ naa.a_context = ctx;
+
+ /* compute actual success/failure based on accessibility */
+ error = nfs_vnop_access(&naa);
+ /* FALLTHROUGH */
+ default:
+ /* unexpected error from cache_lookup */
+ goto error_return;
+ }
+
+ /* skip lookup, if we know who we are: "." or ".." */
+ isdot = isdotdot = 0;
+ if (cnp->cn_nameptr[0] == '.') {
+ if (cnp->cn_namelen == 1)
+ isdot = 1;
+ if ((cnp->cn_namelen == 2) && (cnp->cn_nameptr[1] == '.'))
+ isdotdot = 1;
+ }
+ if (isdotdot || isdot) {
+ fh.fh_len = 0;
+ goto found;
+ }
+
+ /* do we know this name is too long? */
+ nmp = VTONMP(dvp);
+ if (!nmp) {
+ error = ENXIO;
+ goto error_return;
+ }
+ if (NFS_BITMAP_ISSET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_MAXNAME) &&
+ (cnp->cn_namelen > (long)nmp->nm_fsattr.nfsa_maxname)) {
+ error = ENAMETOOLONG;
goto error_return;
}
error = 0;
newvp = NULLVP;
- nfsstats.lookupcache_misses++;
- nfsstats.rpccnt[NFSPROC_LOOKUP]++;
- len = cnp->cn_namelen;
- nfsm_reqhead(dvp, NFSPROC_LOOKUP,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN);
- /* nfsm_request for NFSv2 causes you to goto to nfsmout upon errors */
- nfsm_request(dvp, NFSPROC_LOOKUP, cnp->cn_proc, cnp->cn_cred, &xid);
- if (error) {
- nfsm_postop_attr(dvp, attrflag, &xid);
- m_freem(mrep);
- goto nfsmout;
- }
- nfsm_getfh(fhp, fhsize, v3);
+ OSAddAtomic(1, (SInt32*)&nfsstats.lookupcache_misses);
- /*
- * Handle RENAME case...
- */
- if (cnp->cn_nameiop == RENAME && wantparent && (flags & ISLASTCN)) {
- if (NFS_CMPFH(np, fhp, fhsize)) {
- m_freem(mrep);
- error = EISDIR;
- goto error_return;
- }
- if ((error = nfs_nget(dvp->v_mount, fhp, fhsize, &np))) {
- m_freem(mrep);
- goto error_return;
- }
- newvp = NFSTOV(np);
- if (v3) {
- u_int64_t dxid = xid;
+ error = nmp->nm_funcs->nf_lookup_rpc_async(dnp, cnp->cn_nameptr, cnp->cn_namelen, ctx, &req);
+ nfsmout_if(error);
+ error = nmp->nm_funcs->nf_lookup_rpc_async_finish(dnp, ctx, req, &xid, &fh, &nvattr);
+ nfsmout_if(error);
- nfsm_postop_attr(newvp, attrflag, &xid);
- nfsm_postop_attr(dvp, attrflag, &dxid);
- } else
- nfsm_loadattr(newvp, (struct vattr *)0, &xid);
- *vpp = newvp;
- m_freem(mrep);
- cnp->cn_flags |= SAVENAME;
- if (!lockparent)
- VOP_UNLOCK(dvp, 0, p);
- error = 0;
- goto error_return;
+ /* is the file handle the same as this directory's file handle? */
+ isdot = NFS_CMPFH(dnp, fh.fh_data, fh.fh_len);
+
+found:
+
+ if (flags & ISLASTCN) {
+ switch (cnp->cn_nameiop) {
+ case DELETE:
+ cnp->cn_flags &= ~MAKEENTRY;
+ break;
+ case RENAME:
+ cnp->cn_flags &= ~MAKEENTRY;
+ if (isdot) {
+ error = EISDIR;
+ goto error_return;
+ }
+ break;
+ }
}
- if (flags & ISDOTDOT) {
- VOP_UNLOCK(dvp, 0, p);
- error = nfs_nget(dvp->v_mount, fhp, fhsize, &np);
- if (error) {
- vn_lock(dvp, LK_EXCLUSIVE + LK_RETRY, p);
+ if (isdotdot) {
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
+ newvp = vnode_getparent(dvp);
+ if (!newvp) {
+ error = ENOENT;
goto error_return;
}
- newvp = NFSTOV(np);
- if (lockparent && (flags & ISLASTCN) &&
- (error = vn_lock(dvp, LK_EXCLUSIVE, p))) {
- vput(newvp);
+ } else if (isdot) {
+ error = vnode_get(dvp);
+ if (error)
goto error_return;
- }
- } else if (NFS_CMPFH(np, fhp, fhsize)) {
- VREF(dvp);
newvp = dvp;
+ if (fh.fh_len && (dnp->n_xid <= xid))
+ nfs_loadattrcache(dnp, &nvattr, &xid, 0);
} else {
- if ((error = nfs_nget(dvp->v_mount, fhp, fhsize, &np))) {
- m_freem(mrep);
+ ngflags = (cnp->cn_flags & MAKEENTRY) ? NG_MAKEENTRY : 0;
+ error = nfs_nget(mp, dnp, cnp, fh.fh_data, fh.fh_len, &nvattr, &xid, ngflags, &np);
+ if (error)
goto error_return;
- }
- if (!lockparent || !(flags & ISLASTCN))
- VOP_UNLOCK(dvp, 0, p);
newvp = NFSTOV(np);
- }
- if (v3) {
- u_int64_t dxid = xid;
-
- nfsm_postop_attr(newvp, attrflag, &xid);
- nfsm_postop_attr(dvp, attrflag, &dxid);
- } else
- nfsm_loadattr(newvp, (struct vattr *)0, &xid);
- if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
- cnp->cn_flags |= SAVENAME;
- if ((cnp->cn_flags & MAKEENTRY) &&
- (cnp->cn_nameiop != DELETE || !(flags & ISLASTCN))) {
- np->n_ctime = np->n_vattr.va_ctime.tv_sec;
- cache_enter(dvp, newvp, cnp);
+ nfs_unlock(np);
}
*vpp = newvp;
- nfsm_reqdone;
+
+nfsmout:
if (error) {
- if (newvp != NULLVP) {
- vrele(newvp);
- *vpp = NULLVP;
- }
- if ((cnp->cn_nameiop == CREATE || cnp->cn_nameiop == RENAME) &&
- (flags & ISLASTCN) && error == ENOENT) {
- if (!lockparent)
- VOP_UNLOCK(dvp, 0, p);
- if (dvp->v_mount->mnt_flag & MNT_RDONLY)
+ if (((cnp->cn_nameiop == CREATE) || (cnp->cn_nameiop == RENAME)) &&
+ (flags & ISLASTCN) && (error == ENOENT)) {
+ if (vnode_mount(dvp) && vnode_vfsisrdonly(dvp))
error = EROFS;
else
error = EJUSTRETURN;
}
- if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
- cnp->cn_flags |= SAVENAME;
+ }
+ if ((error == ENOENT) && (cnp->cn_flags & MAKEENTRY) &&
+ (cnp->cn_nameiop != CREATE) && negnamecache) {
+ /* add a negative entry in the name cache */
+ cache_enter(dvp, NULL, cnp);
+ dnp->n_flag |= NNEGNCENTRIES;
}
error_return:
- /*
- * These "vreles" set dvp refcounts back to where they were
- * before we took extra 2 VREFS to avoid VBAD vnode on dvp
- * during server calls for world builds. Remove when real
- * fix is found. - EKN
- */
- if (worldbuildworkaround) {
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
+ if (!lockerror)
+ nfs_unlock(dnp);
+ if (error && *vpp) {
+ vnode_put(*vpp);
+ *vpp = NULLVP;
}
-
return (error);
}
/*
- * nfs read call.
+ * NFS read call.
* Just call nfs_bioread() to do the work.
*/
static int
-nfs_read(ap)
- struct vop_read_args /* {
- struct vnode *a_vp;
+nfs_vnop_read(
+ struct vnop_read_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
- } */ *ap;
+ int a_ioflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
-
- if (vp->v_type != VREG)
+ if (vnode_vtype(ap->a_vp) != VREG)
return (EPERM);
- return (nfs_bioread(vp, ap->a_uio, ap->a_ioflag, ap->a_cred, 0));
+ return (nfs_bioread(VTONFS(ap->a_vp), ap->a_uio, ap->a_ioflag, NULL, ap->a_context));
}
/*
- * nfs readlink call
+ * NFS readlink call
*/
static int
-nfs_readlink(ap)
- struct vop_readlink_args /* {
- struct vnode *a_vp;
+nfs_vnop_readlink(
+ struct vnop_readlink_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- struct ucred *a_cred;
- } */ *ap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
+ vfs_context_t ctx = ap->a_context;
+ nfsnode_t np = VTONFS(ap->a_vp);
+ struct nfsmount *nmp;
+ int error = 0, lockerror, nfsvers, changed = 0, n;
+ uint32_t buflen;
+ struct uio *uio = ap->a_uio;
+ struct nfs_vattr nvattr;
+ struct nfsbuf *bp = NULL;
- if (vp->v_type != VLNK)
+ if (vnode_vtype(ap->a_vp) != VLNK)
return (EPERM);
- return (nfs_bioread(vp, ap->a_uio, 0, ap->a_cred, 0));
+
+ if (uio_uio_resid(uio) == 0)
+ return (0);
+ if (uio->uio_offset < 0)
+ return (EINVAL);
+
+ nmp = VTONMP(ap->a_vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ error = lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE);
+ if (!error)
+ error = nfs_getattr(np, &nvattr, ctx, 1);
+ if (error) {
+ if (!lockerror)
+ nfs_unlock(np);
+ FSDBG(531, np, 0xd1e0001, 0, error);
+ return (error);
+ }
+ if (NFS_CHANGED(nfsvers, np, &nvattr)) {
+ /* link changed, so just ignore NB_CACHE */
+ changed = 1;
+ NFS_CHANGED_UPDATE(nfsvers, np, &nvattr);
+ }
+ nfs_unlock(np);
+
+ OSAddAtomic(1, (SInt32*)&nfsstats.biocache_readlinks);
+ error = nfs_buf_get(np, 0, NFS_MAXPATHLEN, vfs_context_thread(ctx), NBLK_READ, &bp);
+ if (error) {
+ FSDBG(531, np, 0xd1e0002, 0, error);
+ return (error);
+ }
+ if (changed)
+ CLR(bp->nb_flags, NB_CACHE);
+ if (!ISSET(bp->nb_flags, NB_CACHE)) {
+ SET(bp->nb_flags, NB_READ);
+ CLR(bp->nb_flags, NB_DONE);
+ OSAddAtomic(1, (SInt32*)&nfsstats.readlink_bios);
+ buflen = bp->nb_bufsize;
+ error = nmp->nm_funcs->nf_readlink_rpc(np, bp->nb_data, &buflen, ctx);
+ if (error) {
+ SET(bp->nb_flags, NB_ERROR);
+ bp->nb_error = error;
+ } else {
+ bp->nb_validoff = 0;
+ bp->nb_validend = buflen;
+ }
+ nfs_buf_iodone(bp);
+ }
+ if (!error) {
+ // LP64todo - fix this!
+ n = min(uio_uio_resid(uio), bp->nb_validend);
+ if (n > 0)
+ error = uiomove(bp->nb_data, n, uio);
+ }
+ FSDBG(531, np, bp->nb_validend, 0, error);
+ nfs_buf_release(bp, 1);
+ return (error);
}
/*
- * Do a readlink rpc.
- * Called by nfs_doio() from below the buffer cache.
+ * Do a readlink RPC.
*/
int
-nfs_readlinkrpc(vp, uiop, cred)
- register struct vnode *vp;
- struct uio *uiop;
- struct ucred *cred;
+nfs3_readlink_rpc(nfsnode_t np, char *buf, uint32_t *buflenp, vfs_context_t ctx)
{
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- int error = 0, len, attrflag;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(vp);
+ struct nfsmount *nmp;
+ int error = 0, lockerror = ENOENT, nfsvers, status;
+ uint32_t len;
u_int64_t xid;
-
- nfsstats.rpccnt[NFSPROC_READLINK]++;
- nfsm_reqhead(vp, NFSPROC_READLINK, NFSX_FH(v3));
- nfsm_fhtom(vp, v3);
- nfsm_request(vp, NFSPROC_READLINK, uiop->uio_procp, cred, &xid);
- if (v3)
- nfsm_postop_attr(vp, attrflag, &xid);
- if (!error) {
- nfsm_strsiz(len, NFS_MAXPATHLEN);
- if (len == NFS_MAXPATHLEN) {
- struct nfsnode *np = VTONFS(vp);
-#if DIAGNOSTIC
- if (!np)
- panic("nfs_readlinkrpc: null np");
-#endif
- if (np->n_size && np->n_size < NFS_MAXPATHLEN)
- len = np->n_size;
- }
- nfsm_mtouio(uiop, len);
- }
- nfsm_reqdone;
+ struct nfsm_chain nmreq, nmrep;
+
+ nmp = NFSTONMP(np);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq, NFSX_FH(nfsvers));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, np->n_fhp, np->n_fhsize);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request(np, NULL, &nmreq, NFSPROC_READLINK, ctx,
+ &nmrep, &xid, &status);
+ if ((lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_postop_attr_update(error, &nmrep, np, &xid);
+ if (!error)
+ error = status;
+ nfsm_chain_get_32(error, &nmrep, len);
+ nfsmout_if(error);
+ if ((nfsvers == NFS_VER2) && (len > *buflenp)) {
+ error = EBADRPC;
+ goto nfsmout;
+ }
+ if (len >= *buflenp) {
+ if (np->n_size && (np->n_size < *buflenp))
+ len = np->n_size;
+ else
+ len = *buflenp - 1;
+ }
+ nfsm_chain_get_opaque(error, &nmrep, len, buf);
+ if (!error)
+ *buflenp = len;
+nfsmout:
+ if (!lockerror)
+ nfs_unlock(np);
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
return (error);
}
/*
- * nfs read rpc call
+ * NFS read RPC call
* Ditto above
*/
int
-nfs_readrpc(vp, uiop, cred)
- register struct vnode *vp;
- struct uio *uiop;
- struct ucred *cred;
+nfs_read_rpc(nfsnode_t np, struct uio *uiop, vfs_context_t ctx)
{
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
struct nfsmount *nmp;
- int error = 0, len, retlen, tsiz, eof, attrflag;
- int v3 = NFS_ISV3(vp);
- u_int64_t xid;
-
-#ifndef nolint
- eof = 0;
-#endif
- nmp = VFSTONFS(vp->v_mount);
- tsiz = uiop->uio_resid;
- if (((u_int64_t)uiop->uio_offset + (unsigned int)tsiz > 0xffffffff) &&
- !v3)
+ int error = 0, nfsvers, eof = 0;
+ size_t nmrsize, len, retlen, tsiz;
+ off_t txoffset;
+ struct nfsreq rq, *req = &rq;
+
+ FSDBG_TOP(536, np, uiop->uio_offset, uio_uio_resid(uiop), 0);
+ nmp = NFSTONMP(np);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ nmrsize = nmp->nm_rsize;
+
+ // LP64todo - fix this
+ tsiz = uio_uio_resid(uiop);
+ if (((u_int64_t)uiop->uio_offset + (unsigned int)tsiz > 0xffffffff) && (nfsvers == NFS_VER2)) {
+ FSDBG_BOT(536, np, uiop->uio_offset, uio_uio_resid(uiop), EFBIG);
return (EFBIG);
+ }
+
+ txoffset = uiop->uio_offset;
+
while (tsiz > 0) {
- nfsstats.rpccnt[NFSPROC_READ]++;
- len = (tsiz > nmp->nm_rsize) ? nmp->nm_rsize : tsiz;
- nfsm_reqhead(vp, NFSPROC_READ, NFSX_FH(v3) + NFSX_UNSIGNED * 3);
- nfsm_fhtom(vp, v3);
- nfsm_build(tl, u_long *, NFSX_UNSIGNED * 3);
- if (v3) {
- txdr_hyper(&uiop->uio_offset, tl);
- *(tl + 2) = txdr_unsigned(len);
- } else {
- *tl++ = txdr_unsigned(uiop->uio_offset);
- *tl++ = txdr_unsigned(len);
- *tl = 0;
- }
- nfsm_request(vp, NFSPROC_READ, uiop->uio_procp, cred, &xid);
- if (v3) {
- nfsm_postop_attr(vp, attrflag, &xid);
- if (error) {
- m_freem(mrep);
- goto nfsmout;
- }
- nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED);
- eof = fxdr_unsigned(int, *(tl + 1));
- } else
- nfsm_loadattr(vp, (struct vattr *)0, &xid);
- nfsm_strsiz(retlen, nmp->nm_rsize);
- nfsm_mtouio(uiop, retlen);
- m_freem(mrep);
+ len = retlen = (tsiz > nmrsize) ? nmrsize : tsiz;
+ FSDBG(536, np, txoffset, len, 0);
+ error = nmp->nm_funcs->nf_read_rpc_async(np, txoffset, len,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx), NULL, &req);
+ if (!error)
+ error = nmp->nm_funcs->nf_read_rpc_async_finish(np, req, uiop, &retlen, &eof);
+ if (error)
+ break;
+ txoffset += retlen;
tsiz -= retlen;
- if (v3) {
- if (eof || retlen == 0)
+ if (nfsvers != NFS_VER2) {
+ if (eof || (retlen == 0))
tsiz = 0;
} else if (retlen < len)
tsiz = 0;
}
+
+ FSDBG_BOT(536, np, eof, uio_uio_resid(uiop), error);
+ return (error);
+}
+
+int
+nfs3_read_rpc_async(
+ nfsnode_t np,
+ off_t offset,
+ size_t len,
+ thread_t thd,
+ kauth_cred_t cred,
+ struct nfsreq_cbinfo *cb,
+ struct nfsreq **reqp)
+{
+ struct nfsmount *nmp;
+ int error = 0, nfsvers;
+ struct nfsm_chain nmreq;
+
+ nmp = NFSTONMP(np);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_build_alloc_init(error, &nmreq, NFSX_FH(nfsvers) + 3 * NFSX_UNSIGNED);
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, np->n_fhp, np->n_fhsize);
+ if (nfsvers == NFS_VER3) {
+ nfsm_chain_add_64(error, &nmreq, offset);
+ nfsm_chain_add_32(error, &nmreq, len);
+ } else {
+ nfsm_chain_add_32(error, &nmreq, offset);
+ nfsm_chain_add_32(error, &nmreq, len);
+ nfsm_chain_add_32(error, &nmreq, 0);
+ }
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request_async(np, NULL, &nmreq, NFSPROC_READ, thd, cred, cb, reqp);
nfsmout:
+ nfsm_chain_cleanup(&nmreq);
return (error);
}
-/*
- * nfs write call
- */
int
-nfs_writerpc(vp, uiop, cred, iomode, must_commit)
- register struct vnode *vp;
- register struct uio *uiop;
- struct ucred *cred;
- int *iomode, *must_commit;
+nfs3_read_rpc_async_finish(
+ nfsnode_t np,
+ struct nfsreq *req,
+ struct uio *uiop,
+ size_t *lenp,
+ int *eofp)
{
- register u_long *tl;
- register caddr_t cp;
- register int t1, t2, backup;
- caddr_t bpos, dpos, cp2;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- int error = 0, len, tsiz, wccflag = NFSV3_WCCRATTR, rlen, commit;
- int v3 = NFS_ISV3(vp), committed = NFSV3WRITE_FILESYNC;
- u_int64_t xid;
+ int error = 0, lockerror, nfsvers, status, eof = 0;
+ size_t retlen = 0;
+ uint64_t xid;
+ struct nfsmount *nmp;
+ struct nfsm_chain nmrep;
-#if DIAGNOSTIC
- if (uiop->uio_iovcnt != 1)
- panic("nfs_writerpc: iovcnt > 1");
-#endif
- *must_commit = 0;
- tsiz = uiop->uio_resid;
- if (((u_int64_t)uiop->uio_offset + (unsigned int)tsiz > 0xffffffff) && !v3)
- return (EFBIG);
- while (tsiz > 0) {
- nfsstats.rpccnt[NFSPROC_WRITE]++;
- len = (tsiz > nmp->nm_wsize) ? nmp->nm_wsize : tsiz;
- nfsm_reqhead(vp, NFSPROC_WRITE,
- NFSX_FH(v3) + 5 * NFSX_UNSIGNED + nfsm_rndup(len));
- nfsm_fhtom(vp, v3);
- if (v3) {
- nfsm_build(tl, u_long *, 5 * NFSX_UNSIGNED);
- txdr_hyper(&uiop->uio_offset, tl);
- tl += 2;
- *tl++ = txdr_unsigned(len);
- *tl++ = txdr_unsigned(*iomode);
- } else {
- nfsm_build(tl, u_long *, 4 * NFSX_UNSIGNED);
- *++tl = txdr_unsigned(uiop->uio_offset);
- tl += 2;
- }
- *tl = txdr_unsigned(len);
- nfsm_uiotom(uiop, len);
- nfsm_request(vp, NFSPROC_WRITE, uiop->uio_procp, cred, &xid);
- if (v3) {
- wccflag = NFSV3_WCCCHK;
- nfsm_wcc_data(vp, wccflag, &xid);
- if (!error) {
- nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED +
- NFSX_V3WRITEVERF);
- rlen = fxdr_unsigned(int, *tl++);
- if (rlen <= 0) {
- error = NFSERR_IO;
- break;
- } else if (rlen < len) {
- backup = len - rlen;
- uiop->uio_iov->iov_base -= backup;
- uiop->uio_iov->iov_len += backup;
- uiop->uio_offset -= backup;
- uiop->uio_resid += backup;
- len = rlen;
- }
- commit = fxdr_unsigned(int, *tl++);
+ nmp = NFSTONMP(np);
+ if (!nmp) {
+ nfs_request_async_cancel(req);
+ return (ENXIO);
+ }
+ nfsvers = nmp->nm_vers;
- /*
- * Return the lowest committment level
- * obtained by any of the RPCs.
- */
- if (committed == NFSV3WRITE_FILESYNC)
- committed = commit;
- else if (committed == NFSV3WRITE_DATASYNC &&
- commit == NFSV3WRITE_UNSTABLE)
- committed = commit;
- if ((nmp->nm_flag & NFSMNT_HASWRITEVERF) == 0) {
- bcopy((caddr_t)tl, (caddr_t)nmp->nm_verf,
- NFSX_V3WRITEVERF);
- nmp->nm_flag |= NFSMNT_HASWRITEVERF;
- } else if (bcmp((caddr_t)tl,
- (caddr_t)nmp->nm_verf, NFSX_V3WRITEVERF)) {
- *must_commit = 1;
- bcopy((caddr_t)tl, (caddr_t)nmp->nm_verf,
- NFSX_V3WRITEVERF);
- }
- }
- } else
- nfsm_loadattr(vp, (struct vattr *)0, &xid);
+ nfsm_chain_null(&nmrep);
- if (wccflag && vp->v_type != VBAD) /* EINVAL set on VBAD node */
- VTONFS(vp)->n_mtime = VTONFS(vp)->n_vattr.va_mtime.tv_sec;
- m_freem(mrep);
- /*
- * we seem to have a case where we end up looping on shutdown
- * and taking down nfs servers. For V3, error cases, there is
- * no way to terminate loop, if the len was 0, meaning,
- * nmp->nm_wsize was trashed. FreeBSD has this fix in it.
- * Let's try it.
- */
- if (error)
- break;
- tsiz -= len;
+ error = nfs_request_async_finish(req, &nmrep, &xid, &status);
+ if (error == EINPROGRESS) /* async request restarted */
+ return (error);
+
+ if ((lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_postop_attr_update(error, &nmrep, np, &xid);
+ if (!error)
+ error = status;
+ if (nfsvers == NFS_VER3) {
+ nfsm_chain_adv(error, &nmrep, NFSX_UNSIGNED);
+ nfsm_chain_get_32(error, &nmrep, eof);
+ } else {
+ nfsm_chain_loadattr(error, &nmrep, np, nfsvers, NULL, &xid);
}
+ if (!lockerror)
+ nfs_unlock(np);
+ nfsm_chain_get_32(error, &nmrep, retlen);
+ if ((nfsvers == NFS_VER2) && (retlen > *lenp))
+ error = EBADRPC;
+ nfsmout_if(error);
+ error = nfsm_chain_get_uio(&nmrep, MIN(retlen, *lenp), uiop);
+ if (eofp) {
+ if (nfsvers == NFS_VER3) {
+ if (!eof && !retlen)
+ eof = 1;
+ } else if (retlen < *lenp) {
+ eof = 1;
+ }
+ *eofp = eof;
+ }
+ *lenp = MIN(retlen, *lenp);
nfsmout:
- /* EKN
- * does it make sense to even say it was committed if we had an error?
- * okay well just don't on bad vnodes then. EINVAL will be
- * returned on bad vnodes
- */
- if (vp->v_type != VBAD && (vp->v_mount->mnt_flag & MNT_ASYNC))
- committed = NFSV3WRITE_FILESYNC;
- *iomode = committed;
- if (error)
- uiop->uio_resid = tsiz;
+ nfsm_chain_cleanup(&nmrep);
return (error);
}
/*
- * nfs mknod rpc
- * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the
- * mode set to specify the file type and the size field for rdev.
+ * NFS write call
*/
-static int
-nfs_mknodrpc(dvp, vpp, cnp, vap)
- register struct vnode *dvp;
- register struct vnode **vpp;
- register struct componentname *cnp;
- register struct vattr *vap;
+int
+nfs_vnop_write(
+ struct vnop_write_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ struct uio *a_uio;
+ int a_ioflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct nfsv2_sattr *sp;
- register struct nfsv3_sattr *sp3;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- struct vnode *newvp = (struct vnode *)0;
- struct nfsnode *np = (struct nfsnode *)0;
- struct vattr vattr;
- char *cp2;
- caddr_t bpos, dpos;
- int error = 0, wccflag = NFSV3_WCCRATTR, gotvp = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- u_long rdev;
- u_int64_t xid;
- int v3 = NFS_ISV3(dvp);
+ vfs_context_t ctx = ap->a_context;
+ struct uio *uio = ap->a_uio;
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ int ioflag = ap->a_ioflag;
+ struct nfsbuf *bp;
+ struct nfs_vattr nvattr;
+ struct nfsmount *nmp = VTONMP(vp);
+ daddr64_t lbn;
+ int biosize;
+ int n, on, error = 0;
+ off_t boff, start, end;
+ struct iovec_32 iov;
+ struct uio auio;
+ thread_t thd;
+ kauth_cred_t cred;
- if (vap->va_type == VCHR || vap->va_type == VBLK)
- rdev = txdr_unsigned(vap->va_rdev);
- else if (vap->va_type == VFIFO || vap->va_type == VSOCK)
- rdev = 0xffffffff;
- else {
- VOP_ABORTOP(dvp, cnp);
- vput(dvp);
- return (EOPNOTSUPP);
+ FSDBG_TOP(515, np, uio->uio_offset, uio_uio_resid(uio), ioflag);
+
+ if (vnode_vtype(vp) != VREG) {
+ FSDBG_BOT(515, np, uio->uio_offset, uio_uio_resid(uio), EIO);
+ return (EIO);
}
- if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
- VOP_ABORTOP(dvp, cnp);
- vput(dvp);
+
+ thd = vfs_context_thread(ctx);
+ cred = vfs_context_ucred(ctx);
+
+ nfs_data_lock(np, NFS_NODE_LOCK_SHARED);
+
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE))) {
+ nfs_data_unlock(np);
+ FSDBG_BOT(515, np, uio->uio_offset, uio_uio_resid(uio), error);
return (error);
}
- nfsstats.rpccnt[NFSPROC_MKNOD]++;
- nfsm_reqhead(dvp, NFSPROC_MKNOD, NFSX_FH(v3) + 4 * NFSX_UNSIGNED +
- + nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(v3));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
- if (v3) {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED + NFSX_V3SRVSATTR);
- *tl++ = vtonfsv3_type(vap->va_type);
- sp3 = (struct nfsv3_sattr *)tl;
- nfsm_v3sattr(sp3, vap, cnp->cn_cred->cr_uid, vattr.va_gid);
- if (vap->va_type == VCHR || vap->va_type == VBLK) {
- nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
- *tl++ = txdr_unsigned(major(vap->va_rdev));
- *tl = txdr_unsigned(minor(vap->va_rdev));
+ np->n_wrbusy++;
+
+ if (np->n_flag & NWRITEERR) {
+ error = np->n_error;
+ np->n_flag &= ~NWRITEERR;
+ }
+ if (np->n_flag & NNEEDINVALIDATE) {
+ np->n_flag &= ~NNEEDINVALIDATE;
+ nfs_unlock(np);
+ nfs_data_unlock(np);
+ nfs_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, ctx, 1);
+ nfs_data_lock(np, NFS_NODE_LOCK_SHARED);
+ if (error || ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE))))
+ goto out;
+ }
+ if (error) {
+ nfs_unlock(np);
+ goto out;
+ }
+
+ biosize = nmp->nm_biosize;
+
+ if (ioflag & (IO_APPEND | IO_SYNC)) {
+ if (np->n_flag & NMODIFIED) {
+ NATTRINVALIDATE(np);
+ nfs_unlock(np);
+ nfs_data_unlock(np);
+ error = nfs_vinvalbuf(vp, V_SAVE, ctx, 1);
+ nfs_data_lock(np, NFS_NODE_LOCK_SHARED);
+ if (error || ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))) {
+ FSDBG(515, np, uio->uio_offset, 0x10bad01, error);
+ goto out;
+ }
}
- } else {
- nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
- sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode);
- sp->sa_uid = txdr_unsigned(cnp->cn_cred->cr_uid);
- sp->sa_gid = txdr_unsigned(vattr.va_gid);
- sp->sa_size = rdev;
- txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
- txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
- }
- nfsm_request(dvp, NFSPROC_MKNOD, cnp->cn_proc, cnp->cn_cred, &xid);
- if (!error) {
- nfsm_mtofh(dvp, newvp, v3, gotvp, &xid);
- if (!gotvp) {
- if (newvp) {
- vput(newvp);
- newvp = (struct vnode *)0;
+ if (ioflag & IO_APPEND) {
+ NATTRINVALIDATE(np);
+ nfs_unlock(np);
+ nfs_data_unlock(np);
+ error = nfs_getattr(np, &nvattr, ctx, 0);
+ /* we'll be extending the file, so take the data lock exclusive */
+ nfs_data_lock(np, NFS_NODE_LOCK_EXCLUSIVE);
+ if (error || ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))) {
+ FSDBG(515, np, uio->uio_offset, 0x10bad02, error);
+ goto out;
}
- error = nfs_lookitup(dvp, cnp->cn_nameptr,
- cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc, &np);
- if (!error)
- newvp = NFSTOV(np);
+ uio->uio_offset = np->n_size;
}
}
- if (v3)
- nfsm_wcc_data(dvp, wccflag, &xid);
- nfsm_reqdone;
- if (error) {
- if (newvp)
- vput(newvp);
+ if (uio->uio_offset < 0) {
+ nfs_unlock(np);
+ error = EINVAL;
+ FSDBG_BOT(515, np, uio->uio_offset, 0xbad0ff, error);
+ goto out;
+ }
+ if (uio_uio_resid(uio) == 0) {
+ nfs_unlock(np);
+ goto out;
+ }
+
+ nfs_unlock(np);
+
+ if (((uio->uio_offset + uio_uio_resid(uio)) > (off_t)np->n_size) && !(ioflag & IO_APPEND)) {
+ /* it looks like we'll be extending the file, so take the data lock exclusive */
+ nfs_data_unlock(np);
+ nfs_data_lock(np, NFS_NODE_LOCK_EXCLUSIVE);
+ }
+
+ do {
+ OSAddAtomic(1, (SInt32*)&nfsstats.biocache_writes);
+ lbn = uio->uio_offset / biosize;
+ on = uio->uio_offset % biosize;
+ // LP64todo - fix this
+ n = min((unsigned)(biosize - on), uio_uio_resid(uio));
+again:
+ /*
+ * Get a cache block for writing. The range to be written is
+ * (off..off+n) within the block. We ensure that the block
+ * either has no dirty region or that the given range is
+ * contiguous with the existing dirty region.
+ */
+ error = nfs_buf_get(np, lbn, biosize, thd, NBLK_WRITE, &bp);
+ if (error)
+ goto out;
+ /* map the block because we know we're going to write to it */
+ NFS_BUF_MAP(bp);
+
+ if (ioflag & IO_NOCACHE)
+ SET(bp->nb_flags, NB_NOCACHE);
+
+ if (!IS_VALID_CRED(bp->nb_wcred)) {
+ kauth_cred_ref(cred);
+ bp->nb_wcred = cred;
+ }
+
+ /*
+ * If there's already a dirty range AND dirty pages in this block we
+ * need to send a commit AND write the dirty pages before continuing.
+ *
+ * If there's already a dirty range OR dirty pages in this block
+ * and the new write range is not contiguous with the existing range,
+ * then force the buffer to be written out now.
+ * (We used to just extend the dirty range to cover the valid,
+ * but unwritten, data in between also. But writing ranges
+ * of data that weren't actually written by an application
+ * risks overwriting some other client's data with stale data
+ * that's just masquerading as new written data.)
+ */
+ if (bp->nb_dirtyend > 0) {
+ if (on > bp->nb_dirtyend || (on + n) < bp->nb_dirtyoff || bp->nb_dirty) {
+ FSDBG(515, np, uio->uio_offset, bp, 0xd15c001);
+ /* write/commit buffer "synchronously" */
+ /* (NB_STABLE indicates that data writes should be FILESYNC) */
+ CLR(bp->nb_flags, (NB_DONE | NB_ERROR | NB_INVAL));
+ SET(bp->nb_flags, (NB_ASYNC | NB_STABLE));
+ error = nfs_buf_write(bp);
+ if (error)
+ goto out;
+ goto again;
+ }
+ } else if (bp->nb_dirty) {
+ int firstpg, lastpg;
+ u_int32_t pagemask;
+ /* calculate write range pagemask */
+ firstpg = on/PAGE_SIZE;
+ lastpg = (on+n-1)/PAGE_SIZE;
+ pagemask = ((1 << (lastpg+1)) - 1) & ~((1 << firstpg) - 1);
+ /* check if there are dirty pages outside the write range */
+ if (bp->nb_dirty & ~pagemask) {
+ FSDBG(515, np, uio->uio_offset, bp, 0xd15c002);
+ /* write/commit buffer "synchronously" */
+ /* (NB_STABLE indicates that data writes should be FILESYNC) */
+ CLR(bp->nb_flags, (NB_DONE | NB_ERROR | NB_INVAL));
+ SET(bp->nb_flags, (NB_ASYNC | NB_STABLE));
+ error = nfs_buf_write(bp);
+ if (error)
+ goto out;
+ goto again;
+ }
+ /* if the first or last pages are already dirty */
+ /* make sure that the dirty range encompasses those pages */
+ if (NBPGDIRTY(bp,firstpg) || NBPGDIRTY(bp,lastpg)) {
+ FSDBG(515, np, uio->uio_offset, bp, 0xd15c003);
+ bp->nb_dirtyoff = min(on, firstpg * PAGE_SIZE);
+ if (NBPGDIRTY(bp,lastpg)) {
+ bp->nb_dirtyend = (lastpg+1) * PAGE_SIZE;
+ /* clip to EOF */
+ if (NBOFF(bp) + bp->nb_dirtyend > (off_t)np->n_size) {
+ bp->nb_dirtyend = np->n_size - NBOFF(bp);
+ if (bp->nb_dirtyoff >= bp->nb_dirtyend)
+ bp->nb_dirtyoff = bp->nb_dirtyend = 0;
+ }
+ } else
+ bp->nb_dirtyend = on+n;
+ }
+ }
+
+ /*
+ * Are we extending the size of the file with this write?
+ * If so, update file size now that we have the block.
+ * If there was a partial buf at the old eof, validate
+ * and zero the new bytes.
+ */
+ if ((uio->uio_offset + n) > (off_t)np->n_size) {
+ struct nfsbuf *eofbp = NULL;
+ daddr64_t eofbn = np->n_size / biosize;
+ int eofoff = np->n_size % biosize;
+ int neweofoff = (uio->uio_offset + n) % biosize;
+
+ FSDBG(515, 0xb1ffa000, uio->uio_offset + n, eofoff, neweofoff);
+
+ if (eofoff && (eofbn < lbn) &&
+ ((error = nfs_buf_get(np, eofbn, biosize, thd, NBLK_WRITE|NBLK_ONLYVALID, &eofbp))))
+ goto out;
+
+ /* if we're extending within the same last block */
+ /* and the block is flagged as being cached... */
+ if ((lbn == eofbn) && ISSET(bp->nb_flags, NB_CACHE)) {
+ /* ...check that all pages in buffer are valid */
+ int endpg = ((neweofoff ? neweofoff : biosize) - 1)/PAGE_SIZE;
+ u_int32_t pagemask;
+ /* pagemask only has to extend to last page being written to */
+ pagemask = (1 << (endpg+1)) - 1;
+ FSDBG(515, 0xb1ffa001, bp->nb_valid, pagemask, 0);
+ if ((bp->nb_valid & pagemask) != pagemask) {
+ /* zerofill any hole */
+ if (on > bp->nb_validend) {
+ int i;
+ for (i=bp->nb_validend/PAGE_SIZE; i <= (on - 1)/PAGE_SIZE; i++)
+ NBPGVALID_SET(bp, i);
+ NFS_BUF_MAP(bp);
+ FSDBG(516, bp, bp->nb_validend, on - bp->nb_validend, 0xf01e);
+ bzero((char *)bp->nb_data + bp->nb_validend,
+ on - bp->nb_validend);
+ }
+ /* zerofill any trailing data in the last page */
+ if (neweofoff) {
+ NFS_BUF_MAP(bp);
+ FSDBG(516, bp, neweofoff, PAGE_SIZE - (neweofoff & PAGE_MASK), 0xe0f);
+ bzero((char *)bp->nb_data + neweofoff,
+ PAGE_SIZE - (neweofoff & PAGE_MASK));
+ }
+ }
+ }
+ np->n_size = uio->uio_offset + n;
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ CLR(np->n_flag, NUPDATESIZE);
+ np->n_flag |= NMODIFIED;
+ nfs_unlock(np);
+ FSDBG(516, np, np->n_size, np->n_vattr.nva_size, 0xf00d0001);
+ ubc_setsize(vp, (off_t)np->n_size); /* XXX errors */
+ if (eofbp) {
+ /*
+ * We may need to zero any previously invalid data
+ * after the old EOF in the previous EOF buffer.
+ *
+ * For the old last page, don't zero bytes if there
+ * are invalid bytes in that page (i.e. the page isn't
+ * currently valid).
+ * For pages after the old last page, zero them and
+ * mark them as valid.
+ */
+ char *d;
+ int i;
+ if (ioflag & IO_NOCACHE)
+ SET(eofbp->nb_flags, NB_NOCACHE);
+ NFS_BUF_MAP(eofbp);
+ FSDBG(516, eofbp, eofoff, biosize - eofoff, 0xe0fff01e);
+ d = eofbp->nb_data;
+ i = eofoff/PAGE_SIZE;
+ while (eofoff < biosize) {
+ int poff = eofoff & PAGE_MASK;
+ if (!poff || NBPGVALID(eofbp,i)) {
+ bzero(d + eofoff, PAGE_SIZE - poff);
+ NBPGVALID_SET(eofbp, i);
+ }
+ if (bp->nb_validend == eofoff)
+ bp->nb_validend += PAGE_SIZE - poff;
+ eofoff += PAGE_SIZE - poff;
+ i++;
+ }
+ nfs_buf_release(eofbp, 1);
+ }
+ }
+ /*
+ * If dirtyend exceeds file size, chop it down. This should
+ * not occur unless there is a race.
+ */
+ if (NBOFF(bp) + bp->nb_dirtyend > (off_t)np->n_size) {
+ bp->nb_dirtyend = np->n_size - NBOFF(bp);
+ if (bp->nb_dirtyoff >= bp->nb_dirtyend)
+ bp->nb_dirtyoff = bp->nb_dirtyend = 0;
+ }
+ /*
+ * UBC doesn't handle partial pages, so we need to make sure
+ * that any pages left in the page cache are completely valid.
+ *
+ * Writes that are smaller than a block are delayed if they
+ * don't extend to the end of the block.
+ *
+ * If the block isn't (completely) cached, we may need to read
+ * in some parts of pages that aren't covered by the write.
+ * If the write offset (on) isn't page aligned, we'll need to
+ * read the start of the first page being written to. Likewise,
+ * if the offset of the end of the write (on+n) isn't page aligned,
+ * we'll need to read the end of the last page being written to.
+ *
+ * Notes:
+ * We don't want to read anything we're just going to write over.
+ * We don't want to issue multiple I/Os if we don't have to
+ * (because they're synchronous rpcs).
+ * We don't want to read anything we already have modified in the
+ * page cache.
+ */
+ if (!ISSET(bp->nb_flags, NB_NOCACHE) && !ISSET(bp->nb_flags, NB_CACHE) && (n < biosize)) {
+ int firstpg, lastpg, dirtypg;
+ int firstpgoff, lastpgoff;
+ start = end = -1;
+ firstpg = on/PAGE_SIZE;
+ firstpgoff = on & PAGE_MASK;
+ lastpg = (on+n-1)/PAGE_SIZE;
+ lastpgoff = (on+n) & PAGE_MASK;
+ if (firstpgoff && !NBPGVALID(bp,firstpg)) {
+ /* need to read start of first page */
+ start = firstpg * PAGE_SIZE;
+ end = start + firstpgoff;
+ }
+ if (lastpgoff && !NBPGVALID(bp,lastpg)) {
+ /* need to read end of last page */
+ if (start < 0)
+ start = (lastpg * PAGE_SIZE) + lastpgoff;
+ end = (lastpg + 1) * PAGE_SIZE;
+ }
+ if (end > start) {
+ /* need to read the data in range: start...end-1 */
+
+ /* first, check for dirty pages in between */
+ /* if there are, we'll have to do two reads because */
+ /* we don't want to overwrite the dirty pages. */
+ for (dirtypg=start/PAGE_SIZE; dirtypg <= (end-1)/PAGE_SIZE; dirtypg++)
+ if (NBPGDIRTY(bp,dirtypg))
+ break;
+
+ /* if start is at beginning of page, try */
+ /* to get any preceeding pages as well. */
+ if (!(start & PAGE_MASK)) {
+ /* stop at next dirty/valid page or start of block */
+ for (; start > 0; start-=PAGE_SIZE)
+ if (NBPGVALID(bp,((start-1)/PAGE_SIZE)))
+ break;
+ }
+
+ NFS_BUF_MAP(bp);
+ /* setup uio for read(s) */
+ boff = NBOFF(bp);
+ auio.uio_iovs.iov32p = &iov;
+ auio.uio_iovcnt = 1;
+#if 1 /* LP64todo - can't use new segment flags until the drivers are ready */
+ auio.uio_segflg = UIO_SYSSPACE;
+#else
+ auio.uio_segflg = UIO_SYSSPACE32;
+#endif
+ auio.uio_rw = UIO_READ;
+
+ if (dirtypg <= (end-1)/PAGE_SIZE) {
+ /* there's a dirty page in the way, so just do two reads */
+ /* we'll read the preceding data here */
+ auio.uio_offset = boff + start;
+ iov.iov_len = on - start;
+ uio_uio_resid_set(&auio, iov.iov_len);
+ iov.iov_base = (uintptr_t) bp->nb_data + start;
+ error = nfs_read_rpc(np, &auio, ctx);
+ if (error) /* couldn't read the data, so treat buffer as NOCACHE */
+ SET(bp->nb_flags, (NB_NOCACHE|NB_STABLE));
+ if (uio_uio_resid(&auio) > 0) {
+ FSDBG(516, bp, (caddr_t)iov.iov_base - bp->nb_data, uio_uio_resid(&auio), 0xd00dee01);
+ // LP64todo - fix this
+ bzero((caddr_t)iov.iov_base, uio_uio_resid(&auio));
+ }
+ if (!error) {
+ /* update validoff/validend if necessary */
+ if ((bp->nb_validoff < 0) || (bp->nb_validoff > start))
+ bp->nb_validoff = start;
+ if ((bp->nb_validend < 0) || (bp->nb_validend < on))
+ bp->nb_validend = on;
+ if ((off_t)np->n_size > boff + bp->nb_validend)
+ bp->nb_validend = min(np->n_size - (boff + start), biosize);
+ /* validate any pages before the write offset */
+ for (; start < on/PAGE_SIZE; start+=PAGE_SIZE)
+ NBPGVALID_SET(bp, start/PAGE_SIZE);
+ }
+ /* adjust start to read any trailing data */
+ start = on+n;
+ }
+
+ /* if end is at end of page, try to */
+ /* get any following pages as well. */
+ if (!(end & PAGE_MASK)) {
+ /* stop at next valid page or end of block */
+ for (; end < biosize; end+=PAGE_SIZE)
+ if (NBPGVALID(bp,end/PAGE_SIZE))
+ break;
+ }
+
+ if (((boff+start) >= (off_t)np->n_size) ||
+ ((start >= on) && ((boff + on + n) >= (off_t)np->n_size))) {
+ /*
+ * Either this entire read is beyond the current EOF
+ * or the range that we won't be modifying (on+n...end)
+ * is all beyond the current EOF.
+ * No need to make a trip across the network to
+ * read nothing. So, just zero the buffer instead.
+ */
+ FSDBG(516, bp, start, end - start, 0xd00dee00);
+ bzero(bp->nb_data + start, end - start);
+ error = 0;
+ } else if (!ISSET(bp->nb_flags, NB_NOCACHE)) {
+ /* now we'll read the (rest of the) data */
+ auio.uio_offset = boff + start;
+ iov.iov_len = end - start;
+ uio_uio_resid_set(&auio, iov.iov_len);
+ iov.iov_base = (uintptr_t) (bp->nb_data + start);
+ error = nfs_read_rpc(np, &auio, ctx);
+ if (error) /* couldn't read the data, so treat buffer as NOCACHE */
+ SET(bp->nb_flags, (NB_NOCACHE|NB_STABLE));
+ if (uio_uio_resid(&auio) > 0) {
+ FSDBG(516, bp, (caddr_t)iov.iov_base - bp->nb_data, uio_uio_resid(&auio), 0xd00dee02);
+ // LP64todo - fix this
+ bzero((caddr_t)iov.iov_base, uio_uio_resid(&auio));
+ }
+ }
+ if (!error) {
+ /* update validoff/validend if necessary */
+ if ((bp->nb_validoff < 0) || (bp->nb_validoff > start))
+ bp->nb_validoff = start;
+ if ((bp->nb_validend < 0) || (bp->nb_validend < end))
+ bp->nb_validend = end;
+ if ((off_t)np->n_size > boff + bp->nb_validend)
+ bp->nb_validend = min(np->n_size - (boff + start), biosize);
+ /* validate any pages before the write offset's page */
+ for (; start < trunc_page_32(on); start+=PAGE_SIZE)
+ NBPGVALID_SET(bp, start/PAGE_SIZE);
+ /* validate any pages after the range of pages being written to */
+ for (; (end - 1) > round_page_32(on+n-1); end-=PAGE_SIZE)
+ NBPGVALID_SET(bp, (end-1)/PAGE_SIZE);
+ }
+ /* Note: pages being written to will be validated when written */
+ }
+ }
+
+ if (ISSET(bp->nb_flags, NB_ERROR)) {
+ error = bp->nb_error;
+ nfs_buf_release(bp, 1);
+ goto out;
+ }
+
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ np->n_flag |= NMODIFIED;
+ nfs_unlock(np);
+
+ NFS_BUF_MAP(bp);
+ error = uiomove((char *)bp->nb_data + on, n, uio);
+ if (error) {
+ SET(bp->nb_flags, NB_ERROR);
+ nfs_buf_release(bp, 1);
+ goto out;
+ }
+
+ /* validate any pages written to */
+ start = on & ~PAGE_MASK;
+ for (; start < on+n; start += PAGE_SIZE) {
+ NBPGVALID_SET(bp, start/PAGE_SIZE);
+ /*
+ * This may seem a little weird, but we don't actually set the
+ * dirty bits for writes. This is because we keep the dirty range
+ * in the nb_dirtyoff/nb_dirtyend fields. Also, particularly for
+ * delayed writes, when we give the pages back to the VM we don't
+ * want to keep them marked dirty, because when we later write the
+ * buffer we won't be able to tell which pages were written dirty
+ * and which pages were mmapped and dirtied.
+ */
+ }
+ if (bp->nb_dirtyend > 0) {
+ bp->nb_dirtyoff = min(on, bp->nb_dirtyoff);
+ bp->nb_dirtyend = max((on + n), bp->nb_dirtyend);
+ } else {
+ bp->nb_dirtyoff = on;
+ bp->nb_dirtyend = on + n;
+ }
+ if (bp->nb_validend <= 0 || bp->nb_validend < bp->nb_dirtyoff ||
+ bp->nb_validoff > bp->nb_dirtyend) {
+ bp->nb_validoff = bp->nb_dirtyoff;
+ bp->nb_validend = bp->nb_dirtyend;
+ } else {
+ bp->nb_validoff = min(bp->nb_validoff, bp->nb_dirtyoff);
+ bp->nb_validend = max(bp->nb_validend, bp->nb_dirtyend);
+ }
+ if (!ISSET(bp->nb_flags, NB_CACHE))
+ nfs_buf_normalize_valid_range(np, bp);
+
+ /*
+ * Since this block is being modified, it must be written
+ * again and not just committed.
+ */
+ if (ISSET(bp->nb_flags, NB_NEEDCOMMIT)) {
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ if (ISSET(bp->nb_flags, NB_NEEDCOMMIT)) {
+ np->n_needcommitcnt--;
+ CHECK_NEEDCOMMITCNT(np);
+ }
+ CLR(bp->nb_flags, NB_NEEDCOMMIT);
+ nfs_unlock(np);
+ }
+
+ if (ioflag & IO_SYNC) {
+ error = nfs_buf_write(bp);
+ if (error)
+ goto out;
+ } else if (((n + on) == biosize) || (ioflag & IO_NOCACHE) || ISSET(bp->nb_flags, NB_NOCACHE)) {
+ SET(bp->nb_flags, NB_ASYNC);
+ error = nfs_buf_write(bp);
+ if (error)
+ goto out;
+ } else {
+ /* If the block wasn't already delayed: charge for the write */
+ if (!ISSET(bp->nb_flags, NB_DELWRI)) {
+ proc_t p = vfs_context_proc(ctx);
+ if (p && p->p_stats)
+ OSIncrementAtomic(&p->p_stats->p_ru.ru_oublock);
+ }
+ nfs_buf_write_delayed(bp);
+ }
+ if (np->n_needcommitcnt >= NFS_A_LOT_OF_NEEDCOMMITS)
+ nfs_flushcommits(np, 1);
+
+ } while (uio_uio_resid(uio) > 0 && n > 0);
+
+out:
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ np->n_wrbusy--;
+ nfs_unlock(np);
+ nfs_data_unlock(np);
+ FSDBG_BOT(515, np, uio->uio_offset, uio_uio_resid(uio), error);
+ return (error);
+}
+
+
+/*
+ * NFS write call
+ */
+int
+nfs_write_rpc(
+ nfsnode_t np,
+ struct uio *uiop,
+ vfs_context_t ctx,
+ int *iomodep,
+ uint64_t *wverfp)
+{
+ return nfs_write_rpc2(np, uiop, vfs_context_thread(ctx), vfs_context_ucred(ctx), iomodep, wverfp);
+}
+
+int
+nfs_write_rpc2(
+ nfsnode_t np,
+ struct uio *uiop,
+ thread_t thd,
+ kauth_cred_t cred,
+ int *iomodep,
+ uint64_t *wverfp)
+{
+ struct nfsmount *nmp;
+ int error = 0, nfsvers, restart;
+ int backup, wverfset, commit, committed;
+ uint64_t wverf = 0, wverf2;
+ size_t nmwsize, totalsize, tsiz, len, rlen;
+ struct nfsreq rq, *req = &rq;
+
+#if DIAGNOSTIC
+ /* XXX limitation based on need to back up uio on short write */
+ if (uiop->uio_iovcnt != 1)
+ panic("nfs3_write_rpc: iovcnt > 1");
+#endif
+ FSDBG_TOP(537, np, uiop->uio_offset, uio_uio_resid(uiop), *iomodep);
+ nmp = NFSTONMP(np);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ nmwsize = nmp->nm_wsize;
+
+ restart = wverfset = 0;
+ committed = NFS_WRITE_FILESYNC;
+
+ // LP64todo - fix this
+ totalsize = tsiz = uio_uio_resid(uiop);
+ if (((u_int64_t)uiop->uio_offset + (unsigned int)tsiz > 0xffffffff) && (nfsvers == NFS_VER2)) {
+ FSDBG_BOT(537, np, uiop->uio_offset, uio_uio_resid(uiop), EFBIG);
+ return (EFBIG);
+ }
+
+ while (tsiz > 0) {
+ len = (tsiz > nmwsize) ? nmwsize : tsiz;
+ FSDBG(537, np, uiop->uio_offset, len, 0);
+ error = nmp->nm_funcs->nf_write_rpc_async(np, uiop, len, thd, cred, *iomodep, NULL, &req);
+ if (!error)
+ error = nmp->nm_funcs->nf_write_rpc_async_finish(np, req, &commit, &rlen, &wverf2);
+ nmp = NFSTONMP(np);
+ if (!nmp)
+ error = ENXIO;
+ if (error)
+ break;
+ if (nfsvers == NFS_VER2) {
+ tsiz -= len;
+ continue;
+ }
+
+ /* check for a short write */
+ if (rlen < len) {
+ backup = len - rlen;
+ uio_iov_base_add(uiop, -backup);
+ uio_iov_len_add(uiop, backup);
+ uiop->uio_offset -= backup;
+ uio_uio_resid_add(uiop, backup);
+ len = rlen;
+ }
+
+ /* return lowest commit level returned */
+ if (commit < committed)
+ committed = commit;
+
+ tsiz -= len;
+
+ /* check write verifier */
+ if (!wverfset) {
+ wverf = wverf2;
+ wverfset = 1;
+ } else if (wverf != wverf2) {
+ /* verifier changed, so we need to restart all the writes */
+ if (++restart > 10) {
+ /* give up after too many restarts */
+ error = EIO;
+ break;
+ }
+ backup = totalsize - tsiz;
+ uio_iov_base_add(uiop, -backup);
+ uio_iov_len_add(uiop, backup);
+ uiop->uio_offset -= backup;
+ uio_uio_resid_add(uiop, backup);
+ committed = NFS_WRITE_FILESYNC;
+ wverfset = 0;
+ tsiz = totalsize;
+ }
+ }
+ if (wverfset && wverfp)
+ *wverfp = wverf;
+ *iomodep = committed;
+ if (error)
+ uio_uio_resid_set(uiop, tsiz);
+ FSDBG_BOT(537, np, committed, uio_uio_resid(uiop), error);
+ return (error);
+}
+
+int
+nfs3_write_rpc_async(
+ nfsnode_t np,
+ struct uio *uiop,
+ size_t len,
+ thread_t thd,
+ kauth_cred_t cred,
+ int iomode,
+ struct nfsreq_cbinfo *cb,
+ struct nfsreq **reqp)
+{
+ struct nfsmount *nmp;
+ int error = 0, nfsvers;
+ off_t offset;
+ struct nfsm_chain nmreq;
+
+ nmp = NFSTONMP(np);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ offset = uiop->uio_offset;
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + 5 * NFSX_UNSIGNED + nfsm_rndup(len));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, np->n_fhp, np->n_fhsize);
+ if (nfsvers == NFS_VER3) {
+ nfsm_chain_add_64(error, &nmreq, offset);
+ nfsm_chain_add_32(error, &nmreq, len);
+ nfsm_chain_add_32(error, &nmreq, iomode);
} else {
- if (cnp->cn_flags & MAKEENTRY)
- cache_enter(dvp, newvp, cnp);
- *vpp = newvp;
+ nfsm_chain_add_32(error, &nmreq, 0);
+ nfsm_chain_add_32(error, &nmreq, offset);
+ nfsm_chain_add_32(error, &nmreq, 0);
+ }
+ nfsm_chain_add_32(error, &nmreq, len);
+ nfsmout_if(error);
+ error = nfsm_chain_add_uio(&nmreq, uiop, len);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request_async(np, NULL, &nmreq, NFSPROC_WRITE, thd, cred, cb, reqp);
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ return (error);
+}
+
+int
+nfs3_write_rpc_async_finish(
+ nfsnode_t np,
+ struct nfsreq *req,
+ int *iomodep,
+ size_t *rlenp,
+ uint64_t *wverfp)
+{
+ struct nfsmount *nmp;
+ int error = 0, lockerror = ENOENT, nfsvers, status;
+ int updatemtime = 0, wccpostattr = 0, rlen, committed = NFS_WRITE_FILESYNC;
+ u_int64_t xid, wverf;
+ mount_t mp;
+ struct nfsm_chain nmrep;
+
+ nmp = NFSTONMP(np);
+ if (!nmp) {
+ nfs_request_async_cancel(req);
+ return (ENXIO);
}
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- if (dvp->v_type != VBAD) { /* EINVAL set on VBAD vnode */
- VTONFS(dvp)->n_flag |= NMODIFIED;
- if (!wccflag)
- VTONFS(dvp)->n_attrstamp = 0;
+ nfsvers = nmp->nm_vers;
+
+ nfsm_chain_null(&nmrep);
+
+ error = nfs_request_async_finish(req, &nmrep, &xid, &status);
+ if (error == EINPROGRESS) /* async request restarted */
+ return (error);
+ nmp = NFSTONMP(np);
+ if (!nmp)
+ error = ENXIO;
+ if (!error && (lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ if (nfsvers == NFS_VER3) {
+ struct timespec premtime = { 0, 0 };
+ nfsm_chain_get_wcc_data(error, &nmrep, np, &premtime, &wccpostattr, &xid);
+ if (nfstimespeccmp(&np->n_mtime, &premtime, ==))
+ updatemtime = 1;
+ if (!error)
+ error = status;
+ nfsm_chain_get_32(error, &nmrep, rlen);
+ nfsmout_if(error);
+ *rlenp = rlen;
+ if (rlen <= 0)
+ error = NFSERR_IO;
+ nfsm_chain_get_32(error, &nmrep, committed);
+ nfsm_chain_get_64(error, &nmrep, wverf);
+ nfsmout_if(error);
+ if (wverfp)
+ *wverfp = wverf;
+ lck_mtx_lock(&nmp->nm_lock);
+ if (!(nmp->nm_state & NFSSTA_HASWRITEVERF)) {
+ nmp->nm_verf = wverf;
+ nmp->nm_state |= NFSSTA_HASWRITEVERF;
+ } else if (nmp->nm_verf != wverf) {
+ nmp->nm_verf = wverf;
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+ } else {
+ if (!error)
+ error = status;
+ nfsm_chain_loadattr(error, &nmrep, np, nfsvers, NULL, &xid);
+ nfsmout_if(error);
}
- vput(dvp);
+ if (updatemtime)
+ NFS_CHANGED_UPDATE(nfsvers, np, &np->n_vattr);
+nfsmout:
+ if (!lockerror)
+ nfs_unlock(np);
+ nfsm_chain_cleanup(&nmrep);
+ if ((committed != NFS_WRITE_FILESYNC) && nfs_allow_async &&
+ ((mp = NFSTOMP(np))) && (vfs_flags(mp) & MNT_ASYNC))
+ committed = NFS_WRITE_FILESYNC;
+ *iomodep = committed;
return (error);
}
/*
- * nfs mknod vop
- * just call nfs_mknodrpc() to do the work.
+ * NFS mknod vnode op
+ *
+ * For NFS v2 this is a kludge. Use a create RPC but with the IFMT bits of the
+ * mode set to specify the file type and the size field for rdev.
*/
-/* ARGSUSED */
static int
-nfs_mknod(ap)
- struct vop_mknod_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+nfs3_vnop_mknod(
+ struct vnop_mknod_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_dvp;
+ vnode_t *a_vpp;
struct componentname *a_cnp;
- struct vattr *a_vap;
- } */ *ap;
+ struct vnode_attr *a_vap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- struct vnode *newvp;
- int error;
+ vnode_t dvp = ap->a_dvp;
+ vnode_t *vpp = ap->a_vpp;
+ struct componentname *cnp = ap->a_cnp;
+ struct vnode_attr *vap = ap->a_vap;
+ vfs_context_t ctx = ap->a_context;
+ vnode_t newvp = NULL;
+ nfsnode_t np = NULL;
+ struct nfsmount *nmp;
+ nfsnode_t dnp = VTONFS(dvp);
+ struct nfs_vattr nvattr, dnvattr;
+ fhandle_t fh;
+ int error = 0, lockerror = ENOENT, status, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ u_long rdev;
+ u_int64_t xid, dxid;
+ int nfsvers, gotuid, gotgid;
+ struct nfsm_chain nmreq, nmrep;
+
+ nmp = VTONMP(dvp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ if (!VATTR_IS_ACTIVE(vap, va_type))
+ return (EINVAL);
+ if (vap->va_type == VCHR || vap->va_type == VBLK) {
+ if (!VATTR_IS_ACTIVE(vap, va_rdev))
+ return (EINVAL);
+ rdev = vap->va_rdev;
+ } else if (vap->va_type == VFIFO || vap->va_type == VSOCK)
+ rdev = 0xffffffff;
+ else {
+ return (ENOTSUP);
+ }
+ if ((nfsvers == NFS_VER2) && (cnp->cn_namelen > NFS_MAXNAMLEN))
+ return (ENAMETOOLONG);
+
+ VATTR_SET_SUPPORTED(vap, va_mode);
+ VATTR_SET_SUPPORTED(vap, va_uid);
+ VATTR_SET_SUPPORTED(vap, va_gid);
+ VATTR_SET_SUPPORTED(vap, va_data_size);
+ VATTR_SET_SUPPORTED(vap, va_access_time);
+ VATTR_SET_SUPPORTED(vap, va_modify_time);
+ gotuid = VATTR_IS_ACTIVE(vap, va_uid);
+ gotgid = VATTR_IS_ACTIVE(vap, va_gid);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + 4 * NFSX_UNSIGNED +
+ nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(nfsvers));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, cnp->cn_nameptr, cnp->cn_namelen);
+ if (nfsvers == NFS_VER3) {
+ nfsm_chain_add_32(error, &nmreq, vtonfs_type(vap->va_type, nfsvers));
+ nfsm_chain_add_v3sattr(error, &nmreq, vap);
+ if (vap->va_type == VCHR || vap->va_type == VBLK) {
+ nfsm_chain_add_32(error, &nmreq, major(vap->va_rdev));
+ nfsm_chain_add_32(error, &nmreq, minor(vap->va_rdev));
+ }
+ } else {
+ nfsm_chain_add_v2sattr(error, &nmreq, vap, rdev);
+ }
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ nfsmout_if(error);
+
+ error = nfs_request(dnp, NULL, &nmreq, NFSPROC_MKNOD, ctx, &nmrep, &xid, &status);
- error = nfs_mknodrpc(ap->a_dvp, &newvp, ap->a_cnp, ap->a_vap);
- if (!error && newvp)
- vput(newvp);
- *ap->a_vpp = 0;
+ /* XXX no EEXIST kludge here? */
+ dxid = xid;
+ if (!error && !status) {
+ if (dnp->n_flag & NNEGNCENTRIES) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge_negatives(dvp);
+ }
+ error = nfsm_chain_get_fh_attr(&nmrep, dnp, ctx, nfsvers, &xid, &fh, &nvattr);
+ }
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_wcc_data(error, &nmrep, dnp, &premtime, &wccpostattr, &dxid);
+ if (!error)
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+
+ if (!lockerror) {
+ dnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&dnp->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnp->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(dnp);
+ if (!nfs_getattr(dnp, &dnvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, dnp, &dnvattr)) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(dvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnvattr);
+ }
+ }
+ }
+
+ if (!error && fh.fh_len)
+ error = nfs_nget(NFSTOMP(dnp), dnp, cnp, fh.fh_data, fh.fh_len, &nvattr, &xid, NG_MAKEENTRY, &np);
+ if (!error && !np)
+ error = nfs_lookitup(dnp, cnp->cn_nameptr, cnp->cn_namelen, ctx, &np);
+ if (!error && np)
+ newvp = NFSTOV(np);
+ if (!lockerror)
+ nfs_unlock(dnp);
+
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(np, &nvattr, 1) ||
+ (gotuid && (nvattr.nva_uid != vap->va_uid)) ||
+ (gotgid && (nvattr.nva_gid != vap->va_gid)))) {
+ /* clear ID bits if server didn't use them (or we can't tell) */
+ VATTR_CLEAR_SUPPORTED(vap, va_uid);
+ VATTR_CLEAR_SUPPORTED(vap, va_gid);
+ }
+ if (error) {
+ if (newvp) {
+ nfs_unlock(np);
+ vnode_put(newvp);
+ }
+ } else {
+ *vpp = newvp;
+ nfs_unlock(np);
+ }
return (error);
}
static u_long create_verf;
/*
- * nfs file create call
+ * NFS file create call
*/
static int
-nfs_create(ap)
- struct vop_create_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+nfs3_vnop_create(
+ struct vnop_create_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_dvp;
+ vnode_t *a_vpp;
struct componentname *a_cnp;
- struct vattr *a_vap;
- } */ *ap;
+ struct vnode_attr *a_vap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *dvp = ap->a_dvp;
- register struct vattr *vap = ap->a_vap;
- register struct componentname *cnp = ap->a_cnp;
- register struct nfsv2_sattr *sp;
- register struct nfsv3_sattr *sp3;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- struct nfsnode *np = (struct nfsnode *)0;
- struct vnode *newvp = (struct vnode *)0;
- caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR, gotvp = 0, fmode = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- struct vattr vattr;
- int v3 = NFS_ISV3(dvp);
- u_int64_t xid;
-
- /*
- * Oops, not for me..
- */
- if (vap->va_type == VSOCK)
- return (nfs_mknodrpc(dvp, ap->a_vpp, cnp, vap));
+ vfs_context_t ctx = ap->a_context;
+ vnode_t dvp = ap->a_dvp;
+ struct vnode_attr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfs_vattr nvattr, dnvattr;
+ fhandle_t fh;
+ nfsnode_t np = NULL;
+ struct nfsmount *nmp;
+ nfsnode_t dnp = VTONFS(dvp);
+ vnode_t newvp = NULL;
+ int error = 0, lockerror = ENOENT, status, wccpostattr = 0, fmode = 0;
+ struct timespec premtime = { 0, 0 };
+ int nfsvers, gotuid, gotgid;
+ u_int64_t xid, dxid;
+ uint32_t val;
+ struct nfsm_chain nmreq, nmrep;
+ struct nfsreq *req;
+ struct nfs_dulookup dul;
+
+ nmp = VTONMP(dvp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ if ((nfsvers == NFS_VER2) && (cnp->cn_namelen > NFS_MAXNAMLEN))
+ return (ENAMETOOLONG);
+
+ VATTR_SET_SUPPORTED(vap, va_mode);
+ VATTR_SET_SUPPORTED(vap, va_uid);
+ VATTR_SET_SUPPORTED(vap, va_gid);
+ VATTR_SET_SUPPORTED(vap, va_data_size);
+ VATTR_SET_SUPPORTED(vap, va_access_time);
+ VATTR_SET_SUPPORTED(vap, va_modify_time);
+ gotuid = VATTR_IS_ACTIVE(vap, va_uid);
+ gotgid = VATTR_IS_ACTIVE(vap, va_gid);
- if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
- VOP_ABORTOP(dvp, cnp);
- vput(dvp);
- return (error);
- }
if (vap->va_vaflags & VA_EXCLUSIVE)
fmode |= O_EXCL;
+
again:
- nfsstats.rpccnt[NFSPROC_CREATE]++;
- nfsm_reqhead(dvp, NFSPROC_CREATE, NFSX_FH(v3) + 2 * NFSX_UNSIGNED +
- nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(v3));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
- if (v3) {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED);
+ req = NULL;
+ nfs_dulookup_init(&dul, dnp, cnp->cn_nameptr, cnp->cn_namelen);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + 2 * NFSX_UNSIGNED +
+ nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(nfsvers));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, cnp->cn_nameptr, cnp->cn_namelen);
+ if (nfsvers == NFS_VER3) {
if (fmode & O_EXCL) {
- *tl = txdr_unsigned(NFSV3CREATE_EXCLUSIVE);
- nfsm_build(tl, u_long *, NFSX_V3CREATEVERF);
- if (!TAILQ_EMPTY(&in_ifaddrhead))
- *tl++ = IA_SIN(in_ifaddrhead.tqh_first)->sin_addr.s_addr;
- else
- *tl++ = create_verf;
- *tl = ++create_verf;
+ nfsm_chain_add_32(error, &nmreq, NFS_CREATE_EXCLUSIVE);
+ if (!TAILQ_EMPTY(&in_ifaddrhead))
+ val = IA_SIN(in_ifaddrhead.tqh_first)->sin_addr.s_addr;
+ else
+ val = create_verf;
+ nfsm_chain_add_32(error, &nmreq, val);
+ ++create_verf;
+ nfsm_chain_add_32(error, &nmreq, create_verf);
} else {
- *tl = txdr_unsigned(NFSV3CREATE_UNCHECKED);
- nfsm_build(tl, u_long *, NFSX_V3SRVSATTR);
- sp3 = (struct nfsv3_sattr *)tl;
- nfsm_v3sattr(sp3, vap, cnp->cn_cred->cr_uid, vattr.va_gid);
+ nfsm_chain_add_32(error, &nmreq, NFS_CREATE_UNCHECKED);
+ nfsm_chain_add_v3sattr(error, &nmreq, vap);
}
} else {
- nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
- sp->sa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode);
- sp->sa_uid = txdr_unsigned(cnp->cn_cred->cr_uid);
- sp->sa_gid = txdr_unsigned(vattr.va_gid);
- sp->sa_size = 0;
- txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
- txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
- }
- nfsm_request(dvp, NFSPROC_CREATE, cnp->cn_proc, cnp->cn_cred, &xid);
+ nfsm_chain_add_v2sattr(error, &nmreq, vap, 0);
+ }
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ nfsmout_if(error);
+
+ error = nfs_request_async(dnp, NULL, &nmreq, NFSPROC_CREATE,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx), NULL, &req);
if (!error) {
- nfsm_mtofh(dvp, newvp, v3, gotvp, &xid);
- if (!gotvp) {
- if (newvp) {
- vput(newvp);
- newvp = (struct vnode *)0;
+ nfs_dulookup_start(&dul, dnp, ctx);
+ error = nfs_request_async_finish(req, &nmrep, &xid, &status);
+ }
+
+ dxid = xid;
+ if (!error && !status) {
+ if (dnp->n_flag & NNEGNCENTRIES) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge_negatives(dvp);
+ }
+ error = nfsm_chain_get_fh_attr(&nmrep, dnp, ctx, nfsvers, &xid, &fh, &nvattr);
+ }
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_wcc_data(error, &nmrep, dnp, &premtime, &wccpostattr, &dxid);
+ if (!error)
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+
+ if (!lockerror) {
+ dnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&dnp->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnp->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(dnp);
+ if (!nfs_getattr(dnp, &dnvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, dnp, &dnvattr)) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(dvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnvattr);
}
- error = nfs_lookitup(dvp, cnp->cn_nameptr,
- cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc, &np);
- if (!error)
- newvp = NFSTOV(np);
}
}
- if (v3)
- nfsm_wcc_data(dvp, wccflag, &xid);
- nfsm_reqdone;
+
+ if (!error && fh.fh_len)
+ error = nfs_nget(NFSTOMP(dnp), dnp, cnp, fh.fh_data, fh.fh_len, &nvattr, &xid, NG_MAKEENTRY, &np);
+ if (!error && !np)
+ error = nfs_lookitup(dnp, cnp->cn_nameptr, cnp->cn_namelen, ctx, &np);
+ if (!error && np)
+ newvp = NFSTOV(np);
+
+ nfs_dulookup_finish(&dul, dnp, ctx);
+ if (!lockerror)
+ nfs_unlock(dnp);
+
if (error) {
- if (v3 && (fmode & O_EXCL) && error == NFSERR_NOTSUPP) {
+ if ((nfsvers == NFS_VER3) && (fmode & O_EXCL) && (error == NFSERR_NOTSUPP)) {
fmode &= ~O_EXCL;
goto again;
}
- if (newvp)
- vput(newvp);
- } else if (v3 && (fmode & O_EXCL))
- error = nfs_setattrrpc(newvp, vap, cnp->cn_cred, cnp->cn_proc);
- if (!error) {
- if (cnp->cn_flags & MAKEENTRY)
- cache_enter(dvp, newvp, cnp);
+ if (newvp) {
+ nfs_unlock(np);
+ vnode_put(newvp);
+ }
+ } else if ((nfsvers == NFS_VER3) && (fmode & O_EXCL)) {
+ error = nfs3_setattr_rpc(np, vap, ctx, 1);
+ if (error && (gotuid || gotgid)) {
+ /* it's possible the server didn't like our attempt to set IDs. */
+ /* so, let's try it again without those */
+ VATTR_CLEAR_ACTIVE(vap, va_uid);
+ VATTR_CLEAR_ACTIVE(vap, va_gid);
+ error = nfs3_setattr_rpc(np, vap, ctx, 1);
+ }
+ if (error) {
+ nfs_unlock(np);
+ vnode_put(newvp);
+ }
+ }
+ if (!error)
*ap->a_vpp = newvp;
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(np, &nvattr, 1) ||
+ (gotuid && (nvattr.nva_uid != vap->va_uid)) ||
+ (gotgid && (nvattr.nva_gid != vap->va_gid)))) {
+ /* clear ID bits if server didn't use them (or we can't tell) */
+ VATTR_CLEAR_SUPPORTED(vap, va_uid);
+ VATTR_CLEAR_SUPPORTED(vap, va_gid);
}
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- if (dvp->v_type != VBAD) { /* EINVAL set on VBAD vnode */
- VTONFS(dvp)->n_flag |= NMODIFIED;
- if (!wccflag)
- VTONFS(dvp)->n_attrstamp = 0;
- }
- vput(dvp);
+ if (!error)
+ nfs_unlock(np);
return (error);
}
/*
- * nfs file remove call
- * To try and make nfs semantics closer to ufs semantics, a file that has
+ * NFS file remove call
+ * To try and make NFS semantics closer to UFS semantics, a file that has
* other processes using the vnode is renamed instead of removed and then
* removed later on the last close.
- * - If v_usecount > 1
+ * - If vnode_isinuse()
* If a rename is not already in the works
* call nfs_sillyrename() to set it up
* else
- * do the remove rpc
+ * do the remove RPC
*/
static int
-nfs_remove(ap)
- struct vop_remove_args /* {
+nfs_vnop_remove(
+ struct vnop_remove_args /* {
struct vnodeop_desc *a_desc;
- struct vnode * a_dvp;
- struct vnode * a_vp;
- struct componentname * a_cnp;
- } */ *ap;
+ vnode_t a_dvp;
+ vnode_t a_vp;
+ struct componentname *a_cnp;
+ int a_flags;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct vnode *dvp = ap->a_dvp;
- register struct componentname *cnp = ap->a_cnp;
- register struct nfsnode *np = VTONFS(vp);
- int error = 0, gofree = 0;
- struct vattr vattr;
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ vnode_t dvp = ap->a_dvp;
+ struct componentname *cnp = ap->a_cnp;
+ nfsnode_t dnp = VTONFS(dvp);
+ nfsnode_t np = VTONFS(vp);
+ int error = 0, nfsvers, inuse, gotattr = 0, flushed = 0, setsize = 0;
+ struct nfs_vattr nvattr;
+ struct nfsmount *nmp;
+ struct nfs_dulookup dul;
-#if DIAGNOSTIC
- if ((cnp->cn_flags & HASBUF) == 0)
- panic("nfs_remove: no name");
- if (vp->v_usecount < 1)
- panic("nfs_remove: bad v_usecount");
-#endif
+ /* XXX prevent removing a sillyrenamed file? */
- if (UBCISVALID(vp)) {
- /* regular files */
- if (UBCINFOEXISTS(vp))
- gofree = (ubc_isinuse(vp, 1)) ? 0 : 1;
- else {
- /* dead or dying vnode.With vnode locking panic instead of error */
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- vput(dvp);
- vput(vp);
- return (EIO);
- }
- } else {
- /* UBC not in play */
- if (vp->v_usecount == 1)
- gofree = 1;
+ nmp = NFSTONMP(dnp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+again_relock:
+ error = nfs_lock2(dnp, np, NFS_NODE_LOCK_EXCLUSIVE);
+ if (error)
+ return (error);
+
+ /* lock the node while we remove the file */
+ lck_mtx_lock(nfs_node_hash_mutex);
+ while (np->n_hflag & NHLOCKED) {
+ np->n_hflag |= NHLOCKWANT;
+ msleep(np, nfs_node_hash_mutex, PINOD, "nfs_remove", NULL);
}
- if (gofree || (np->n_sillyrename &&
- VOP_GETATTR(vp, &vattr, cnp->cn_cred, cnp->cn_proc) == 0 &&
- vattr.va_nlink > 1)) {
+ np->n_hflag |= NHLOCKED;
+ lck_mtx_unlock(nfs_node_hash_mutex);
+
+ nfs_dulookup_init(&dul, dnp, cnp->cn_nameptr, cnp->cn_namelen);
+again:
+ inuse = vnode_isinuse(vp, 0);
+ if ((ap->a_flags & VNODE_REMOVE_NODELETEBUSY) && inuse) {
+ /* Caller requested Carbon delete semantics, but file is busy */
+ error = EBUSY;
+ goto out;
+ }
+ if (inuse && !gotattr) {
+ if (nfs_getattr(np, &nvattr, ctx, 1))
+ nvattr.nva_nlink = 1;
+ gotattr = 1;
+ goto again;
+ }
+ if (!inuse || (np->n_sillyrename && (nvattr.nva_nlink > 1))) {
+
+ if (!inuse && !flushed) { /* flush all the buffers first */
+ /* unlock the node */
+ lck_mtx_lock(nfs_node_hash_mutex);
+ np->n_hflag &= ~NHLOCKED;
+ if (np->n_hflag & NHLOCKWANT) {
+ np->n_hflag &= ~NHLOCKWANT;
+ wakeup(np);
+ }
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ nfs_unlock2(dnp, np);
+ error = nfs_vinvalbuf(vp, V_SAVE, ctx, 1);
+ FSDBG(260, np, np->n_size, np->n_vattr.nva_size, 0xf00d0011);
+ flushed = 1;
+ if (error == EINTR) {
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ NATTRINVALIDATE(np);
+ nfs_unlock(np);
+ return (error);
+ }
+ goto again_relock;
+ }
+
/*
* Purge the name cache so that the chance of a lookup for
* the name succeeding while the remove is in progress is
- * minimized. Without node locking it can still happen, such
- * that an I/O op returns ESTALE, but since you get this if
- * another host removes the file..
+ * minimized.
*/
cache_purge(vp);
- /*
- * throw away biocache buffers, mainly to avoid
- * unnecessary delayed writes later.
- */
- error = nfs_vinvalbuf(vp, 0, cnp->cn_cred, cnp->cn_proc, 1);
- np->n_size = 0;
- ubc_setsize(vp, (off_t)0); /* XXX check error */
+
+ nfs_dulookup_start(&dul, dnp, ctx);
+
/* Do the rpc */
- if (error != EINTR)
- error = nfs_removerpc(dvp, cnp->cn_nameptr,
- cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc);
+ error = nmp->nm_funcs->nf_remove_rpc(dnp, cnp->cn_nameptr, cnp->cn_namelen,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx));
+
/*
* Kludge City: If the first reply to the remove rpc is lost..
* the reply to the retransmitted request will be ENOENT
*/
if (error == ENOENT)
error = 0;
+
+ if (!error && !inuse && !np->n_sillyrename) {
+ /*
+ * removal succeeded, it's not in use, and not silly renamed so
+ * remove nfsnode from hash now so we can't accidentally find it
+ * again if another object gets created with the same filehandle
+ * before this vnode gets reclaimed
+ */
+ lck_mtx_lock(nfs_node_hash_mutex);
+ if (np->n_hflag & NHHASHED) {
+ LIST_REMOVE(np, n_hash);
+ np->n_hflag &= ~NHHASHED;
+ FSDBG(266, 0, np, np->n_flag, 0xb1eb1e);
+ }
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ /* clear flags now: won't get nfs_vnop_inactive for recycled vnode */
+ /* clear all flags other than these */
+ np->n_flag &= (NMODIFIED);
+ vnode_recycle(vp);
+ NATTRINVALIDATE(np);
+ setsize = 1;
+ } else {
+ NATTRINVALIDATE(np);
+ }
} else if (!np->n_sillyrename) {
- error = nfs_sillyrename(dvp, vp, cnp);
+ nfs_dulookup_start(&dul, dnp, ctx);
+ error = nfs_sillyrename(dnp, np, cnp, ctx);
+ NATTRINVALIDATE(np);
+ } else {
+ NATTRINVALIDATE(np);
+ nfs_dulookup_start(&dul, dnp, ctx);
}
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- np->n_attrstamp = 0;
- vput(dvp);
-
- VOP_UNLOCK(vp, 0, cnp->cn_proc);
- ubc_uncache(vp);
- vrele(vp);
-
+ if (!nfs_getattr(dnp, &nvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, dnp, &nvattr)) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(dvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &nvattr);
+ }
+ }
+ nfs_dulookup_finish(&dul, dnp, ctx);
+out:
+ /* unlock the node */
+ lck_mtx_lock(nfs_node_hash_mutex);
+ np->n_hflag &= ~NHLOCKED;
+ if (np->n_hflag & NHLOCKWANT) {
+ np->n_hflag &= ~NHLOCKWANT;
+ wakeup(np);
+ }
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ nfs_unlock2(dnp, np);
+ if (setsize)
+ ubc_setsize(vp, 0);
return (error);
}
/*
- * nfs file remove rpc called from nfs_inactive
+ * NFS silly-renamed file removal function called from nfs_vnop_inactive
*/
int
-nfs_removeit(sp)
- register struct sillyrename *sp;
+nfs_removeit(struct nfs_sillyrename *nsp)
{
-
- return (nfs_removerpc(sp->s_dvp, sp->s_name, sp->s_namlen, sp->s_cred,
- (struct proc *)0));
+ struct nfsmount *nmp = NFSTONMP(nsp->nsr_dnp);
+ if (!nmp)
+ return (ENXIO);
+ return nmp->nm_funcs->nf_remove_rpc(nsp->nsr_dnp, nsp->nsr_name, nsp->nsr_namlen, NULL, nsp->nsr_cred);
}
/*
- * Nfs remove rpc, called from nfs_remove() and nfs_removeit().
+ * NFS remove rpc, called from nfs_remove() and nfs_removeit().
*/
-static int
-nfs_removerpc(dvp, name, namelen, cred, proc)
- register struct vnode *dvp;
- char *name;
- int namelen;
- struct ucred *cred;
- struct proc *proc;
+int
+nfs3_remove_rpc(
+ nfsnode_t dnp,
+ char *name,
+ int namelen,
+ thread_t thd,
+ kauth_cred_t cred)
{
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(dvp);
+ int error = 0, status, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ struct nfsmount *nmp;
+ int nfsvers;
u_int64_t xid;
-
- nfsstats.rpccnt[NFSPROC_REMOVE]++;
- nfsm_reqhead(dvp, NFSPROC_REMOVE,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(namelen));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(name, namelen, NFS_MAXNAMLEN);
- nfsm_request(dvp, NFSPROC_REMOVE, proc, cred, &xid);
- if (v3)
- nfsm_wcc_data(dvp, wccflag, &xid);
- nfsm_reqdone;
- if (dvp->v_type != VBAD) { /* EINVAL set on VBAD vnode */
- VTONFS(dvp)->n_flag |= NMODIFIED;
- if (!wccflag)
- VTONFS(dvp)->n_attrstamp = 0;
- }
+ struct nfsm_chain nmreq, nmrep;
+
+ nmp = NFSTONMP(dnp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ if ((nfsvers == NFS_VER2) && (namelen > NFS_MAXNAMLEN))
+ return (ENAMETOOLONG);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + NFSX_UNSIGNED + nfsm_rndup(namelen));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, name, namelen);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+
+ error = nfs_request2(dnp, NULL, &nmreq, NFSPROC_REMOVE, thd, cred, 0, &nmrep, &xid, &status);
+
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_wcc_data(error, &nmrep, dnp, &premtime, &wccpostattr, &xid);
+ dnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&dnp->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnp->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(dnp);
+ if (!error)
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
return (error);
}
/*
- * nfs file rename call
+ * NFS file rename call
*/
static int
-nfs_rename(ap)
- struct vop_rename_args /* {
- struct vnode *a_fdvp;
- struct vnode *a_fvp;
+nfs_vnop_rename(
+ struct vnop_rename_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_fdvp;
+ vnode_t a_fvp;
struct componentname *a_fcnp;
- struct vnode *a_tdvp;
- struct vnode *a_tvp;
+ vnode_t a_tdvp;
+ vnode_t a_tvp;
struct componentname *a_tcnp;
- } */ *ap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *fvp = ap->a_fvp;
- register struct vnode *tvp = ap->a_tvp;
- register struct vnode *fdvp = ap->a_fdvp;
- register struct vnode *tdvp = ap->a_tdvp;
- register struct componentname *tcnp = ap->a_tcnp;
- register struct componentname *fcnp = ap->a_fcnp;
- int error, purged=0, inuse=0;
+ vfs_context_t ctx = ap->a_context;
+ vnode_t fdvp = ap->a_fdvp;
+ vnode_t fvp = ap->a_fvp;
+ vnode_t tdvp = ap->a_tdvp;
+ vnode_t tvp = ap->a_tvp;
+ nfsnode_t fdnp, fnp, tdnp, tnp;
+ struct componentname *tcnp = ap->a_tcnp;
+ struct componentname *fcnp = ap->a_fcnp;
+ int error, nfsvers, inuse=0, tvprecycle=0, locked=0;
+ mount_t fmp, tdmp, tmp;
+ struct nfs_vattr nvattr;
+ struct nfsmount *nmp;
+ struct nfs_dulookup fdul, tdul;
+
+ fdnp = VTONFS(fdvp);
+ fnp = VTONFS(fvp);
+ tdnp = VTONFS(tdvp);
+ tnp = tvp ? VTONFS(tvp) : NULL;
+
+ nmp = NFSTONMP(fdnp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ error = nfs_lock4(fdnp, fnp, tdnp, tnp, NFS_NODE_LOCK_EXCLUSIVE);
+ if (error)
+ return (error);
+
+ if (tvp && (tvp != fvp)) {
+ /* lock the node while we rename over the existing file */
+ lck_mtx_lock(nfs_node_hash_mutex);
+ while (tnp->n_hflag & NHLOCKED) {
+ tnp->n_hflag |= NHLOCKWANT;
+ msleep(tnp, nfs_node_hash_mutex, PINOD, "nfs_rename", NULL);
+ }
+ tnp->n_hflag |= NHLOCKED;
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ locked = 1;
+ }
+
+ nfs_dulookup_init(&fdul, fdnp, fcnp->cn_nameptr, fcnp->cn_namelen);
+ nfs_dulookup_init(&tdul, tdnp, tcnp->cn_nameptr, tcnp->cn_namelen);
-#if DIAGNOSTIC
- if ((tcnp->cn_flags & HASBUF) == 0 ||
- (fcnp->cn_flags & HASBUF) == 0)
- panic("nfs_rename: no name");
-#endif
/* Check for cross-device rename */
- if ((fvp->v_mount != tdvp->v_mount) ||
- (tvp && (fvp->v_mount != tvp->v_mount))) {
+ fmp = vnode_mount(fvp);
+ tmp = tvp ? vnode_mount(tvp) : NULL;
+ tdmp = vnode_mount(tdvp);
+ if ((fmp != tdmp) || (tvp && (fmp != tmp))) {
error = EXDEV;
- if (tvp)
- VOP_UNLOCK(tvp, 0, tcnp->cn_proc);
goto out;
}
+ /* XXX prevent renaming from/over a sillyrenamed file? */
+
/*
* If the tvp exists and is in use, sillyrename it before doing the
* rename of the new file over it.
* Don't sillyrename if source and target are same vnode (hard
* links or case-variants)
*/
- if (tvp && tvp != fvp) {
- if (UBCISVALID(tvp)) {
- /* regular files */
- if (UBCINFOEXISTS(tvp))
- inuse = (ubc_isinuse(tvp, 1)) ? 1 : 0;
- else {
- /* dead or dying vnode.With vnode locking panic instead of error */
- error = EIO;
- VOP_UNLOCK(tvp, 0, tcnp->cn_proc);
- goto out;
- }
- } else {
- /* UBC not in play */
- if (tvp->v_usecount > 1)
- inuse = 1;
- }
- }
- if (inuse && !VTONFS(tvp)->n_sillyrename && tvp->v_type != VDIR) {
- if (error = nfs_sillyrename(tdvp, tvp, tcnp)) {
+ if (tvp && (tvp != fvp))
+ inuse = vnode_isinuse(tvp, 0);
+ if (inuse && !tnp->n_sillyrename && (vnode_vtype(tvp) != VDIR)) {
+ error = nfs_sillyrename(tdnp, tnp, tcnp, ctx);
+ if (error) {
/* sillyrename failed. Instead of pressing on, return error */
goto out; /* should not be ENOENT. */
} else {
/* sillyrename succeeded.*/
- VOP_UNLOCK(tvp, 0, tcnp->cn_proc);
- ubc_uncache(tvp); /* get the nfs turd file to disappear */
- vrele(tvp);
tvp = NULL;
}
}
- error = nfs_renamerpc(fdvp, fcnp->cn_nameptr, fcnp->cn_namelen,
- tdvp, tcnp->cn_nameptr, tcnp->cn_namelen, tcnp->cn_cred,
- tcnp->cn_proc);
+ nfs_dulookup_start(&fdul, fdnp, ctx);
+ nfs_dulookup_start(&tdul, tdnp, ctx);
- if (fvp->v_type == VDIR) {
- if (tvp != NULL && tvp->v_type == VDIR) {
- cache_purge(tdvp);
- if (tvp == tdvp)
- purged = 1;
+ error = nmp->nm_funcs->nf_rename_rpc(fdnp, fcnp->cn_nameptr, fcnp->cn_namelen,
+ tdnp, tcnp->cn_nameptr, tcnp->cn_namelen, ctx);
+
+ /*
+ * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
+ */
+ if (error == ENOENT)
+ error = 0;
+
+ if (tvp && (tvp != fvp) && !tnp->n_sillyrename) {
+ tvprecycle = (!error && !vnode_isinuse(tvp, 0) &&
+ (nfs_getattrcache(tnp, &nvattr, 1) || (nvattr.nva_nlink == 1)));
+ lck_mtx_lock(nfs_node_hash_mutex);
+ if (tvprecycle && (tnp->n_hflag & NHHASHED)) {
+ /*
+ * remove nfsnode from hash now so we can't accidentally find it
+ * again if another object gets created with the same filehandle
+ * before this vnode gets reclaimed
+ */
+ LIST_REMOVE(tnp, n_hash);
+ tnp->n_hflag &= ~NHHASHED;
+ FSDBG(266, 0, tnp, tnp->n_flag, 0xb1eb1e);
}
- cache_purge(fdvp);
+ lck_mtx_unlock(nfs_node_hash_mutex);
}
-
+
+ /* purge the old name cache entries and enter the new one */
cache_purge(fvp);
if (tvp) {
- if (!purged)
- cache_purge(tvp);
- VOP_UNLOCK(tvp, 0, tcnp->cn_proc);
- ubc_uncache(tvp); /* get the nfs turd file to disappear */
+ cache_purge(tvp);
+ if (tvprecycle) {
+ /* clear flags now: won't get nfs_vnop_inactive for recycled vnode */
+ /* clear all flags other than these */
+ tnp->n_flag &= (NMODIFIED);
+ vnode_recycle(tvp);
+ }
+ }
+ if (!error) {
+ if (tdnp->n_flag & NNEGNCENTRIES) {
+ tdnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge_negatives(tdvp);
+ }
+ cache_enter(tdvp, fvp, tcnp);
+ if (tdvp != fdvp) { /* update parent pointer */
+ if (fnp->n_parent && !vnode_get(fnp->n_parent)) {
+ /* remove ref from old parent */
+ vnode_rele(fnp->n_parent);
+ vnode_put(fnp->n_parent);
+ }
+ fnp->n_parent = tdvp;
+ if (tdvp && !vnode_get(tdvp)) {
+ /* add ref to new parent */
+ vnode_ref(tdvp);
+ vnode_put(tdvp);
+ } else {
+ fnp->n_parent = NULL;
+ }
+ }
}
-
out:
- if (tdvp == tvp)
- vrele(tdvp);
- else
- vput(tdvp);
- if (tvp)
- vrele(tvp); /* already unlocked */
- vrele(fdvp);
- vrele(fvp);
- /*
- * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
- */
- if (error == ENOENT)
- error = 0;
+ if (!nfs_getattr(fdnp, &nvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, fdnp, &nvattr)) {
+ fdnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(fdvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, fdnp, &nvattr);
+ }
+ }
+ if (!nfs_getattr(tdnp, &nvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, tdnp, &nvattr)) {
+ tdnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(tdvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, tdnp, &nvattr);
+ }
+ }
+ nfs_dulookup_finish(&fdul, fdnp, ctx);
+ nfs_dulookup_finish(&tdul, tdnp, ctx);
+ if (locked) {
+ /* unlock node */
+ lck_mtx_lock(nfs_node_hash_mutex);
+ tnp->n_hflag &= ~NHLOCKED;
+ if (tnp->n_hflag & NHLOCKWANT) {
+ tnp->n_hflag &= ~NHLOCKWANT;
+ wakeup(tnp);
+ }
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ }
+ nfs_unlock4(fdnp, fnp, tdnp, tnp);
return (error);
}
/*
- * nfs file rename rpc called from nfs_remove() above
+ * Do an NFS rename rpc. Called from nfs_vnop_rename() and nfs_sillyrename().
*/
-static int
-nfs_renameit(sdvp, scnp, sp)
- struct vnode *sdvp;
- struct componentname *scnp;
- register struct sillyrename *sp;
-{
- return (nfs_renamerpc(sdvp, scnp->cn_nameptr, scnp->cn_namelen,
- sdvp, sp->s_name, sp->s_namlen, scnp->cn_cred, scnp->cn_proc));
-}
-
-/*
- * Do an nfs rename rpc. Called from nfs_rename() and nfs_renameit().
- */
-static int
-nfs_renamerpc(fdvp, fnameptr, fnamelen, tdvp, tnameptr, tnamelen, cred, proc)
- register struct vnode *fdvp;
- char *fnameptr;
- int fnamelen;
- register struct vnode *tdvp;
- char *tnameptr;
- int tnamelen;
- struct ucred *cred;
- struct proc *proc;
+int
+nfs3_rename_rpc(
+ nfsnode_t fdnp,
+ char *fnameptr,
+ int fnamelen,
+ nfsnode_t tdnp,
+ char *tnameptr,
+ int tnamelen,
+ vfs_context_t ctx)
{
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- int error = 0, fwccflag = NFSV3_WCCRATTR, twccflag = NFSV3_WCCRATTR;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(fdvp);
- u_int64_t xid;
-
- nfsstats.rpccnt[NFSPROC_RENAME]++;
- nfsm_reqhead(fdvp, NFSPROC_RENAME,
- (NFSX_FH(v3) + NFSX_UNSIGNED)*2 + nfsm_rndup(fnamelen) +
- nfsm_rndup(tnamelen));
- nfsm_fhtom(fdvp, v3);
- nfsm_strtom(fnameptr, fnamelen, NFS_MAXNAMLEN);
- nfsm_fhtom(tdvp, v3);
- nfsm_strtom(tnameptr, tnamelen, NFS_MAXNAMLEN);
- nfsm_request(fdvp, NFSPROC_RENAME, proc, cred, &xid);
- if (v3) {
- u_int64_t txid = xid;
-
- nfsm_wcc_data(fdvp, fwccflag, &xid);
- nfsm_wcc_data(tdvp, twccflag, &txid);
- }
- nfsm_reqdone;
- if (fdvp->v_type != VBAD) { /* EINVAL set on VBAD vnode */
- VTONFS(fdvp)->n_flag |= NMODIFIED;
- if (!fwccflag)
- VTONFS(fdvp)->n_attrstamp = 0;
- }
- if (tdvp->v_type != VBAD) { /* EINVAL set on VBAD vnode */
- VTONFS(tdvp)->n_flag |= NMODIFIED;
- if (!twccflag)
- VTONFS(tdvp)->n_attrstamp = 0;
- }
+ int error = 0, status, fwccpostattr = 0, twccpostattr = 0;
+ struct timespec fpremtime = { 0, 0 }, tpremtime = { 0, 0 };
+ struct nfsmount *nmp;
+ int nfsvers;
+ u_int64_t xid, txid;
+ struct nfsm_chain nmreq, nmrep;
+
+ nmp = NFSTONMP(fdnp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ if ((nfsvers == NFS_VER2) &&
+ ((fnamelen > NFS_MAXNAMLEN) || (tnamelen > NFS_MAXNAMLEN)))
+ return (ENAMETOOLONG);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ (NFSX_FH(nfsvers) + NFSX_UNSIGNED) * 2 +
+ nfsm_rndup(fnamelen) + nfsm_rndup(tnamelen));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, fdnp->n_fhp, fdnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, fnameptr, fnamelen);
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, tdnp->n_fhp, tdnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, tnameptr, tnamelen);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+
+ error = nfs_request(fdnp, NULL, &nmreq, NFSPROC_RENAME, ctx, &nmrep, &xid, &status);
+
+ if (nfsvers == NFS_VER3) {
+ txid = xid;
+ nfsm_chain_get_wcc_data(error, &nmrep, fdnp, &fpremtime, &fwccpostattr, &xid);
+ nfsm_chain_get_wcc_data(error, &nmrep, tdnp, &tpremtime, &twccpostattr, &txid);
+ }
+ if (!error)
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+ fdnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&fdnp->n_ncmtime, &fpremtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, fdnp, &fdnp->n_vattr);
+ if (!fwccpostattr)
+ NATTRINVALIDATE(fdnp);
+ tdnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&tdnp->n_ncmtime, &tpremtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, tdnp, &tdnp->n_vattr);
+ if (!twccpostattr)
+ NATTRINVALIDATE(tdnp);
return (error);
}
/*
- * nfs hard link create call
+ * NFS hard link create call
*/
static int
-nfs_link(ap)
- struct vop_link_args /* {
- struct vnode *a_vp;
- struct vnode *a_tdvp;
+nfs3_vnop_link(
+ struct vnop_link_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ vnode_t a_tdvp;
struct componentname *a_cnp;
- } */ *ap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct vnode *tdvp = ap->a_tdvp;
- register struct componentname *cnp = ap->a_cnp;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR, attrflag = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(vp);
- u_int64_t xid;
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ vnode_t tdvp = ap->a_tdvp;
+ struct componentname *cnp = ap->a_cnp;
+ int error = 0, status, wccpostattr = 0, attrflag = 0;
+ struct timespec premtime = { 0, 0 };
+ struct nfsmount *nmp;
+ nfsnode_t np = VTONFS(vp);
+ nfsnode_t tdnp = VTONFS(tdvp);
+ int nfsvers;
+ u_int64_t xid, txid;
+ struct nfsm_chain nmreq, nmrep;
- if (vp->v_mount != tdvp->v_mount) {
- VOP_ABORTOP(vp, cnp);
- if (tdvp == vp)
- vrele(tdvp);
- else
- vput(tdvp);
+ if (vnode_mount(vp) != vnode_mount(tdvp))
return (EXDEV);
- }
+
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ if ((nfsvers == NFS_VER2) && (cnp->cn_namelen > NFS_MAXNAMLEN))
+ return (ENAMETOOLONG);
/*
* Push all writes to the server, so that the attribute cache
* doesn't get "out of sync" with the server.
* XXX There should be a better way!
*/
- VOP_FSYNC(vp, cnp->cn_cred, MNT_WAIT, cnp->cn_proc);
-
- nfsstats.rpccnt[NFSPROC_LINK]++;
- nfsm_reqhead(vp, NFSPROC_LINK,
- NFSX_FH(v3)*2 + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
- nfsm_fhtom(vp, v3);
- nfsm_fhtom(tdvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
- nfsm_request(vp, NFSPROC_LINK, cnp->cn_proc, cnp->cn_cred, &xid);
- if (v3) {
- u_int64_t txid = xid;
-
- nfsm_postop_attr(vp, attrflag, &xid);
- nfsm_wcc_data(tdvp, wccflag, &txid);
- }
- nfsm_reqdone;
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
-
- VTONFS(tdvp)->n_flag |= NMODIFIED;
- if (!attrflag && vp->v_type != VBAD) /* EINVAL set on VBAD vnode */
- VTONFS(vp)->n_attrstamp = 0;
- if (!wccflag && tdvp->v_type != VBAD) /* EINVAL set on VBAD vnode */
- VTONFS(tdvp)->n_attrstamp = 0;
- vput(tdvp);
+ nfs_flush(np, MNT_WAIT, vfs_context_thread(ctx), V_IGNORE_WRITEERR);
+
+ error = nfs_lock2(tdnp, np, NFS_NODE_LOCK_EXCLUSIVE);
+ if (error)
+ return (error);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers)*2 + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, np->n_fhp, np->n_fhsize);
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, tdnp->n_fhp, tdnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, cnp->cn_nameptr, cnp->cn_namelen);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request(np, NULL, &nmreq, NFSPROC_LINK, ctx,
+ &nmrep, &xid, &status);
+ if (nfsvers == NFS_VER3) {
+ txid = xid;
+ nfsm_chain_postop_attr_update_flag(error, &nmrep, np, attrflag, &xid);
+ nfsm_chain_get_wcc_data(error, &nmrep, tdnp, &premtime, &wccpostattr, &txid);
+ }
+ if (!error)
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+ tdnp->n_flag |= NMODIFIED;
+ if (!attrflag)
+ NATTRINVALIDATE(np);
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&tdnp->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, tdnp, &tdnp->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(tdnp);
+ if (!error && (tdnp->n_flag & NNEGNCENTRIES)) {
+ tdnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge_negatives(tdvp);
+ }
+ nfs_unlock2(tdnp, np);
/*
* Kludge: Map EEXIST => 0 assuming that it is a reply to a retry.
*/
return (error);
}
-/*
- * nfs symbolic link create call
- */
-static int
-nfs_symlink(ap)
- struct vop_symlink_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
- struct componentname *a_cnp;
- struct vattr *a_vap;
- char *a_target;
- } */ *ap;
-{
- register struct vnode *dvp = ap->a_dvp;
- register struct vattr *vap = ap->a_vap;
- register struct componentname *cnp = ap->a_cnp;
- register struct nfsv2_sattr *sp;
- register struct nfsv3_sattr *sp3;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- int slen, error = 0, wccflag = NFSV3_WCCRATTR, gotvp;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- struct vnode *newvp = (struct vnode *)0;
- int v3 = NFS_ISV3(dvp);
- u_int64_t xid;
+/*
+ * NFS symbolic link create call
+ */
+static int
+nfs3_vnop_symlink(
+ struct vnop_symlink_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_dvp;
+ vnode_t *a_vpp;
+ struct componentname *a_cnp;
+ struct vnode_attr *a_vap;
+ char *a_target;
+ vfs_context_t a_context;
+ } */ *ap)
+{
+ vfs_context_t ctx = ap->a_context;
+ vnode_t dvp = ap->a_dvp;
+ struct vnode_attr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfs_vattr nvattr, dnvattr;
+ fhandle_t fh;
+ int slen, error = 0, lockerror = ENOENT, status, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ vnode_t newvp = NULL;
+ int nfsvers, gotuid, gotgid;
+ u_int64_t xid, dxid;
+ nfsnode_t np = NULL;
+ nfsnode_t dnp = VTONFS(dvp);
+ struct nfsmount *nmp;
+ struct nfsm_chain nmreq, nmrep;
+ struct nfsreq *req = NULL;
+ struct nfs_dulookup dul;
+
+ nmp = VTONMP(dvp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ slen = strlen(ap->a_target);
+ if ((nfsvers == NFS_VER2) &&
+ ((cnp->cn_namelen > NFS_MAXNAMLEN) || (slen > NFS_MAXPATHLEN)))
+ return (ENAMETOOLONG);
+
+ VATTR_SET_SUPPORTED(vap, va_mode);
+ VATTR_SET_SUPPORTED(vap, va_uid);
+ VATTR_SET_SUPPORTED(vap, va_gid);
+ VATTR_SET_SUPPORTED(vap, va_data_size);
+ VATTR_SET_SUPPORTED(vap, va_access_time);
+ VATTR_SET_SUPPORTED(vap, va_modify_time);
+ gotuid = VATTR_IS_ACTIVE(vap, va_uid);
+ gotgid = VATTR_IS_ACTIVE(vap, va_gid);
+
+ nfs_dulookup_init(&dul, dnp, cnp->cn_nameptr, cnp->cn_namelen);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + 2 * NFSX_UNSIGNED +
+ nfsm_rndup(cnp->cn_namelen) + nfsm_rndup(slen) + NFSX_SATTR(nfsvers));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, cnp->cn_nameptr, cnp->cn_namelen);
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_add_v3sattr(error, &nmreq, vap);
+ nfsm_chain_add_string(error, &nmreq, ap->a_target, slen);
+ if (nfsvers == NFS_VER2)
+ nfsm_chain_add_v2sattr(error, &nmreq, vap, -1);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ nfsmout_if(error);
+
+ error = nfs_request_async(dnp, NULL, &nmreq, NFSPROC_SYMLINK,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx), NULL, &req);
+ if (!error) {
+ nfs_dulookup_start(&dul, dnp, ctx);
+ error = nfs_request_async_finish(req, &nmrep, &xid, &status);
+ }
+
+ dxid = xid;
+ if (!error && !status) {
+ if (dnp->n_flag & NNEGNCENTRIES) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge_negatives(dvp);
+ }
+ if (nfsvers == NFS_VER3)
+ error = nfsm_chain_get_fh_attr(&nmrep, dnp, ctx, nfsvers, &xid, &fh, &nvattr);
+ else
+ fh.fh_len = 0;
+ }
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_wcc_data(error, &nmrep, dnp, &premtime, &wccpostattr, &dxid);
+ if (!error)
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+
+ if (!lockerror) {
+ dnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&dnp->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnp->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(dnp);
+ if (!nfs_getattr(dnp, &dnvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, dnp, &dnvattr)) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(dvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnvattr);
+ }
+ }
+ }
+
+ if (!error && fh.fh_len)
+ error = nfs_nget(NFSTOMP(dnp), dnp, cnp, fh.fh_data, fh.fh_len, &nvattr, &xid, NG_MAKEENTRY, &np);
+ if (!error && np)
+ newvp = NFSTOV(np);
- nfsstats.rpccnt[NFSPROC_SYMLINK]++;
- slen = strlen(ap->a_target);
- nfsm_reqhead(dvp, NFSPROC_SYMLINK, NFSX_FH(v3) + 2*NFSX_UNSIGNED +
- nfsm_rndup(cnp->cn_namelen) + nfsm_rndup(slen) + NFSX_SATTR(v3));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
- if (v3) {
- nfsm_build(sp3, struct nfsv3_sattr *, NFSX_V3SRVSATTR);
- nfsm_v3sattr(sp3, vap, cnp->cn_cred->cr_uid,
- cnp->cn_cred->cr_gid);
- }
- nfsm_strtom(ap->a_target, slen, NFS_MAXPATHLEN);
- if (!v3) {
- nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
- sp->sa_mode = vtonfsv2_mode(VLNK, vap->va_mode);
- sp->sa_uid = txdr_unsigned(cnp->cn_cred->cr_uid);
- sp->sa_gid = txdr_unsigned(cnp->cn_cred->cr_gid);
- sp->sa_size = -1;
- txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
- txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
- }
- nfsm_request(dvp, NFSPROC_SYMLINK, cnp->cn_proc, cnp->cn_cred, &xid);
- if (v3) {
- u_int64_t dxid = xid;
+ nfs_dulookup_finish(&dul, dnp, ctx);
- if (!error)
- nfsm_mtofh(dvp, newvp, v3, gotvp, &xid);
- nfsm_wcc_data(dvp, wccflag, &dxid);
- }
- nfsm_reqdone;
- if (newvp)
- vput(newvp);
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- if (dvp->v_type != VBAD) { /* EINVAL set on VBAD vnode */
- VTONFS(dvp)->n_flag |= NMODIFIED;
- if (!wccflag)
- VTONFS(dvp)->n_attrstamp = 0;
- }
- vput(dvp);
/*
- * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry.
+ * Kludge: Map EEXIST => 0 assuming that you have a reply to a retry
+ * if we can succeed in looking up the symlink.
*/
- if (error == EEXIST)
- error = 0;
+ if ((error == EEXIST) || (!error && !newvp)) {
+ if (newvp) {
+ nfs_unlock(np);
+ vnode_put(newvp);
+ newvp = NULL;
+ }
+ error = nfs_lookitup(dnp, cnp->cn_nameptr, cnp->cn_namelen, ctx, &np);
+ if (!error) {
+ newvp = NFSTOV(np);
+ if (vnode_vtype(newvp) != VLNK)
+ error = EEXIST;
+ }
+ }
+ if (!lockerror)
+ nfs_unlock(dnp);
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(np, &nvattr, 1) ||
+ (gotuid && (nvattr.nva_uid != vap->va_uid)) ||
+ (gotgid && (nvattr.nva_gid != vap->va_gid)))) {
+ /* clear ID bits if server didn't use them (or we can't tell) */
+ VATTR_CLEAR_SUPPORTED(vap, va_uid);
+ VATTR_CLEAR_SUPPORTED(vap, va_gid);
+ }
+ if (error) {
+ if (newvp) {
+ nfs_unlock(np);
+ vnode_put(newvp);
+ }
+ } else {
+ nfs_unlock(np);
+ *ap->a_vpp = newvp;
+ }
return (error);
}
/*
- * nfs make dir call
+ * NFS make dir call
*/
static int
-nfs_mkdir(ap)
- struct vop_mkdir_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+nfs3_vnop_mkdir(
+ struct vnop_mkdir_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_dvp;
+ vnode_t *a_vpp;
struct componentname *a_cnp;
- struct vattr *a_vap;
- } */ *ap;
+ struct vnode_attr *a_vap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *dvp = ap->a_dvp;
- register struct vattr *vap = ap->a_vap;
- register struct componentname *cnp = ap->a_cnp;
- register struct nfsv2_sattr *sp;
- register struct nfsv3_sattr *sp3;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- register int len;
- struct nfsnode *np = (struct nfsnode *)0;
- struct vnode *newvp = (struct vnode *)0;
- caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR;
- int gotvp = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- struct vattr vattr;
- int v3 = NFS_ISV3(dvp);
+ vfs_context_t ctx = ap->a_context;
+ vnode_t dvp = ap->a_dvp;
+ struct vnode_attr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfs_vattr nvattr, dnvattr;
+ nfsnode_t np = NULL;
+ struct nfsmount *nmp;
+ nfsnode_t dnp = VTONFS(dvp);
+ vnode_t newvp = NULL;
+ int error = 0, lockerror = ENOENT, status, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ int nfsvers, gotuid, gotgid;
u_int64_t xid, dxid;
-
- if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
- VOP_ABORTOP(dvp, cnp);
- vput(dvp);
- return (error);
+ fhandle_t fh;
+ struct nfsm_chain nmreq, nmrep;
+ struct nfsreq *req = NULL;
+ struct nfs_dulookup dul;
+
+ nmp = VTONMP(dvp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ if ((nfsvers == NFS_VER2) && (cnp->cn_namelen > NFS_MAXNAMLEN))
+ return (ENAMETOOLONG);
+
+ VATTR_SET_SUPPORTED(vap, va_mode);
+ VATTR_SET_SUPPORTED(vap, va_uid);
+ VATTR_SET_SUPPORTED(vap, va_gid);
+ VATTR_SET_SUPPORTED(vap, va_data_size);
+ VATTR_SET_SUPPORTED(vap, va_access_time);
+ VATTR_SET_SUPPORTED(vap, va_modify_time);
+ gotuid = VATTR_IS_ACTIVE(vap, va_uid);
+ gotgid = VATTR_IS_ACTIVE(vap, va_gid);
+
+ nfs_dulookup_init(&dul, dnp, cnp->cn_nameptr, cnp->cn_namelen);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + NFSX_UNSIGNED +
+ nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(nfsvers));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, cnp->cn_nameptr, cnp->cn_namelen);
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_add_v3sattr(error, &nmreq, vap);
+ else
+ nfsm_chain_add_v2sattr(error, &nmreq, vap, -1);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ nfsmout_if(error);
+
+ error = nfs_request_async(dnp, NULL, &nmreq, NFSPROC_MKDIR,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx), NULL, &req);
+ if (!error) {
+ nfs_dulookup_start(&dul, dnp, ctx);
+ error = nfs_request_async_finish(req, &nmrep, &xid, &status);
}
- len = cnp->cn_namelen;
- nfsstats.rpccnt[NFSPROC_MKDIR]++;
- nfsm_reqhead(dvp, NFSPROC_MKDIR,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len) + NFSX_SATTR(v3));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN);
- if (v3) {
- nfsm_build(sp3, struct nfsv3_sattr *, NFSX_V3SRVSATTR);
- nfsm_v3sattr(sp3, vap, cnp->cn_cred->cr_uid, vattr.va_gid);
- } else {
- nfsm_build(sp, struct nfsv2_sattr *, NFSX_V2SATTR);
- sp->sa_mode = vtonfsv2_mode(VDIR, vap->va_mode);
- sp->sa_uid = txdr_unsigned(cnp->cn_cred->cr_uid);
- sp->sa_gid = txdr_unsigned(vattr.va_gid);
- sp->sa_size = -1;
- txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
- txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
- }
- nfsm_request(dvp, NFSPROC_MKDIR, cnp->cn_proc, cnp->cn_cred, &xid);
+
dxid = xid;
+ if (!error && !status) {
+ if (dnp->n_flag & NNEGNCENTRIES) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge_negatives(dvp);
+ }
+ error = nfsm_chain_get_fh_attr(&nmrep, dnp, ctx, nfsvers, &xid, &fh, &nvattr);
+ }
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_wcc_data(error, &nmrep, dnp, &premtime, &wccpostattr, &dxid);
if (!error)
- nfsm_mtofh(dvp, newvp, v3, gotvp, &xid);
- if (v3)
- nfsm_wcc_data(dvp, wccflag, &dxid);
- nfsm_reqdone;
- if (dvp->v_type != VBAD) { /* EINVAL set on this case */
- VTONFS(dvp)->n_flag |= NMODIFIED;
- if (!wccflag)
- VTONFS(dvp)->n_attrstamp = 0;
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+
+ if (!lockerror) {
+ dnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&dnp->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnp->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(dnp);
+ if (!nfs_getattr(dnp, &dnvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, dnp, &dnvattr)) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(dvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnvattr);
+ }
+ }
}
+
+ if (!error && fh.fh_len)
+ error = nfs_nget(NFSTOMP(dnp), dnp, cnp, fh.fh_data, fh.fh_len, &nvattr, &xid, NG_MAKEENTRY, &np);
+ if (!error && np)
+ newvp = NFSTOV(np);
+
+ nfs_dulookup_finish(&dul, dnp, ctx);
+
/*
* Kludge: Map EEXIST => 0 assuming that you have a reply to a retry
* if we can succeed in looking up the directory.
*/
- if (error == EEXIST || (!error && !gotvp)) {
+ if (error == EEXIST || (!error && !newvp)) {
if (newvp) {
- vrele(newvp);
- newvp = (struct vnode *)0;
+ nfs_unlock(np);
+ vnode_put(newvp);
+ newvp = NULL;
}
- error = nfs_lookitup(dvp, cnp->cn_nameptr, len, cnp->cn_cred,
- cnp->cn_proc, &np);
+ error = nfs_lookitup(dnp, cnp->cn_nameptr, cnp->cn_namelen, ctx, &np);
if (!error) {
newvp = NFSTOV(np);
- if (newvp->v_type != VDIR)
+ if (vnode_vtype(newvp) != VDIR)
error = EEXIST;
}
}
+ if (!lockerror)
+ nfs_unlock(dnp);
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(np, &nvattr, 1) ||
+ (gotuid && (nvattr.nva_uid != vap->va_uid)) ||
+ (gotgid && (nvattr.nva_gid != vap->va_gid)))) {
+ /* clear ID bits if server didn't use them (or we can't tell) */
+ VATTR_CLEAR_SUPPORTED(vap, va_uid);
+ VATTR_CLEAR_SUPPORTED(vap, va_gid);
+ }
if (error) {
- if (newvp)
- vrele(newvp);
- } else
+ if (newvp) {
+ nfs_unlock(np);
+ vnode_put(newvp);
+ }
+ } else {
+ nfs_unlock(np);
*ap->a_vpp = newvp;
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- vput(dvp);
+ }
return (error);
}
/*
- * nfs remove directory call
+ * NFS remove directory call
*/
static int
-nfs_rmdir(ap)
- struct vop_rmdir_args /* {
- struct vnode *a_dvp;
- struct vnode *a_vp;
+nfs3_vnop_rmdir(
+ struct vnop_rmdir_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_dvp;
+ vnode_t a_vp;
struct componentname *a_cnp;
- } */ *ap;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct vnode *dvp = ap->a_dvp;
- register struct componentname *cnp = ap->a_cnp;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(dvp);
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ vnode_t dvp = ap->a_dvp;
+ struct componentname *cnp = ap->a_cnp;
+ int error = 0, status, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ struct nfsmount *nmp;
+ nfsnode_t np = VTONFS(vp);
+ nfsnode_t dnp = VTONFS(dvp);
+ struct nfs_vattr dnvattr;
+ int nfsvers;
u_int64_t xid;
+ struct nfsm_chain nmreq, nmrep;
+ struct nfsreq *req = NULL;
+ struct nfs_dulookup dul;
+
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ if ((nfsvers == NFS_VER2) && (cnp->cn_namelen > NFS_MAXNAMLEN))
+ return (ENAMETOOLONG);
+
+ nfs_dulookup_init(&dul, dnp, cnp->cn_nameptr, cnp->cn_namelen);
+
+ if ((error = nfs_lock2(dnp, np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, cnp->cn_nameptr, cnp->cn_namelen);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+
+ error = nfs_request_async(dnp, NULL, &nmreq, NFSPROC_RMDIR,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx), NULL, &req);
+ if (!error) {
+ nfs_dulookup_start(&dul, dnp, ctx);
+ error = nfs_request_async_finish(req, &nmrep, &xid, &status);
+ }
- nfsstats.rpccnt[NFSPROC_RMDIR]++;
- nfsm_reqhead(dvp, NFSPROC_RMDIR,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
- nfsm_request(dvp, NFSPROC_RMDIR, cnp->cn_proc, cnp->cn_cred, &xid);
- if (v3)
- nfsm_wcc_data(dvp, wccflag, &xid);
- nfsm_reqdone;
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- if (dvp->v_type != VBAD) { /* EINVAL set on this case */
- VTONFS(dvp)->n_flag |= NMODIFIED;
- if (!wccflag)
- VTONFS(dvp)->n_attrstamp = 0;
- }
- cache_purge(dvp);
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_wcc_data(error, &nmrep, dnp, &premtime, &wccpostattr, &xid);
+ if (!error)
+ error = status;
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+
+ dnp->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&dnp->n_ncmtime, &premtime, ==))
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnp->n_vattr);
+ if (!wccpostattr)
+ NATTRINVALIDATE(dnp);
cache_purge(vp);
- vput(vp);
- vput(dvp);
+ if (!nfs_getattr(dnp, &dnvattr, ctx, 1)) {
+ if (NFS_CHANGED_NC(nfsvers, dnp, &dnvattr)) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(dvp);
+ NFS_CHANGED_UPDATE_NC(nfsvers, dnp, &dnvattr);
+ }
+ }
+ nfs_dulookup_finish(&dul, dnp, ctx);
+ nfs_unlock2(dnp, np);
+
/*
* Kludge: Map ENOENT => 0 assuming that you have a reply to a retry.
*/
if (error == ENOENT)
error = 0;
+ if (!error) {
+ /*
+ * remove nfsnode from hash now so we can't accidentally find it
+ * again if another object gets created with the same filehandle
+ * before this vnode gets reclaimed
+ */
+ lck_mtx_lock(nfs_node_hash_mutex);
+ if (np->n_hflag & NHHASHED) {
+ LIST_REMOVE(np, n_hash);
+ np->n_hflag &= ~NHHASHED;
+ FSDBG(266, 0, np, np->n_flag, 0xb1eb1e);
+ }
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ }
return (error);
}
/*
- * nfs readdir call
+ * NFS readdir call
*/
static int
-nfs_readdir(ap)
- struct vop_readdir_args /* {
- struct vnode *a_vp;
+nfs_vnop_readdir(
+ struct vnop_readdir_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- struct ucred *a_cred;
- } */ *ap;
+ int *a_eofflag;
+ int *a_ncookies;
+ u_long **a_cookies;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct nfsnode *np = VTONFS(vp);
- register struct uio *uio = ap->a_uio;
- int tresid, error;
- struct vattr vattr;
+ vfs_context_t ctx = ap->a_context;
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ struct nfsmount *nmp;
+ struct uio *uio = ap->a_uio;
+ int tresid, error, nfsvers;
+ struct nfs_vattr nvattr;
- if (vp->v_type != VDIR)
+ if (vnode_vtype(vp) != VDIR)
return (EPERM);
+
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
+
/*
* First, check for hit on the EOF offset cache
*/
if (np->n_direofoffset > 0 && uio->uio_offset >= np->n_direofoffset &&
(np->n_flag & NMODIFIED) == 0) {
- if (VFSTONFS(vp->v_mount)->nm_flag & NFSMNT_NQNFS) {
- if (NQNFS_CKCACHABLE(vp, ND_READ)) {
- nfsstats.direofcache_hits++;
+ if (!nfs_getattr(np, &nvattr, ctx, 1)) {
+ if (!NFS_CHANGED(nfsvers, np, &nvattr)) {
+ nfs_unlock(np);
+ OSAddAtomic(1, (SInt32*)&nfsstats.direofcache_hits);
+ if (ap->a_eofflag)
+ *ap->a_eofflag = 1;
return (0);
}
- } else if (VOP_GETATTR(vp, &vattr, ap->a_cred, uio->uio_procp) == 0 &&
- np->n_mtime == vattr.va_mtime.tv_sec) {
- nfsstats.direofcache_hits++;
- return (0);
+ if (NFS_CHANGED_NC(nfsvers, np, &nvattr)) {
+ /* directory changed, purge any name cache entries */
+ np->n_flag &= ~NNEGNCENTRIES;
+ cache_purge(vp);
+ }
}
}
+ nfs_unlock(np);
+ if (ap->a_eofflag)
+ *ap->a_eofflag = 0;
/*
* Call nfs_bioread() to do the real work.
*/
- tresid = uio->uio_resid;
- error = nfs_bioread(vp, uio, 0, ap->a_cred, 0);
+ // LP64todo - fix this
+ tresid = uio_uio_resid(uio);
+ error = nfs_bioread(np, uio, 0, ap->a_eofflag, ctx);
- if (!error && uio->uio_resid == tresid)
- nfsstats.direofcache_misses++;
+ if (!error && uio_uio_resid(uio) == tresid)
+ OSAddAtomic(1, (SInt32*)&nfsstats.direofcache_misses);
return (error);
}
/*
- * Readdir rpc call.
- * Called from below the buffer cache by nfs_doio().
+ * Readdir RPC call.
+ * Called from below the buffer cache by nfs_buf_readdir().
*/
+#define DIRHDSIZ ((int)(sizeof(struct dirent) - (MAXNAMLEN + 1)))
int
-nfs_readdirrpc(vp, uiop, cred)
- struct vnode *vp;
- register struct uio *uiop;
- struct ucred *cred;
-
+nfs3_readdir_rpc(nfsnode_t dnp, struct uio *uiop, vfs_context_t ctx)
{
- register int len, left;
- register struct dirent *dp;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- register nfsuint64 *cookiep;
- caddr_t bpos, dpos, cp2;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
+ int len, skiplen, left;
+ struct dirent *dp = NULL;
+ nfsuint64 *cookiep;
nfsuint64 cookie;
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- struct nfsnode *dnp = VTONFS(vp);
+ struct nfsmount *nmp;
u_quad_t fileno;
- int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1;
- int attrflag;
- int v3 = NFS_ISV3(vp);
+ int error = 0, lockerror, status, tlen, more_dirs = 1, blksiz = 0, bigenough = 1, eof;
+ int nfsvers, nmreaddirsize;
u_int64_t xid;
+ struct nfsm_chain nmreq, nmrep;
+ char *cp;
-#ifndef nolint
- dp = (struct dirent *)0;
-#endif
#if DIAGNOSTIC
- if (uiop->uio_iovcnt != 1 || (uiop->uio_offset & (NFS_DIRBLKSIZ - 1)) ||
- (uiop->uio_resid & (NFS_DIRBLKSIZ - 1)))
+ /* XXX limitation based on need to adjust uio */
+ if (uiop->uio_iovcnt != 1 || (uiop->uio_offset & (DIRBLKSIZ - 1)) ||
+ (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)))
panic("nfs_readdirrpc: bad uio");
#endif
+ nmp = NFSTONMP(dnp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ nmreaddirsize = nmp->nm_readdirsize;
+
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_SHARED)))
+ return (lockerror);
/*
* If there is no cookie, assume directory was stale.
cookiep = nfs_getcookie(dnp, uiop->uio_offset, 0);
if (cookiep)
cookie = *cookiep;
- else
+ else {
+ nfs_unlock(dnp);
return (NFSERR_BAD_COOKIE);
+ }
+
/*
* Loop around doing readdir rpc's of size nm_readdirsize
* truncated to a multiple of DIRBLKSIZ.
* The stopping criteria is EOF or buffer full.
*/
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
while (more_dirs && bigenough) {
- nfsstats.rpccnt[NFSPROC_READDIR]++;
- nfsm_reqhead(vp, NFSPROC_READDIR, NFSX_FH(v3) +
- NFSX_READDIR(v3));
- nfsm_fhtom(vp, v3);
- if (v3) {
- nfsm_build(tl, u_long *, 5 * NFSX_UNSIGNED);
- *tl++ = cookie.nfsuquad[0];
- *tl++ = cookie.nfsuquad[1];
- *tl++ = dnp->n_cookieverf.nfsuquad[0];
- *tl++ = dnp->n_cookieverf.nfsuquad[1];
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + NFSX_READDIR(nfsvers));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ if (nfsvers == NFS_VER3) {
+ /* opaque values don't need swapping, but as long */
+ /* as we are consistent about it, it should be ok */
+ nfsm_chain_add_32(error, &nmreq, cookie.nfsuquad[0]);
+ nfsm_chain_add_32(error, &nmreq, cookie.nfsuquad[1]);
+ nfsm_chain_add_32(error, &nmreq, dnp->n_cookieverf.nfsuquad[0]);
+ nfsm_chain_add_32(error, &nmreq, dnp->n_cookieverf.nfsuquad[1]);
} else {
- nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
- *tl++ = cookie.nfsuquad[0];
+ nfsm_chain_add_32(error, &nmreq, cookie.nfsuquad[0]);
}
- *tl = txdr_unsigned(nmp->nm_readdirsize);
- nfsm_request(vp, NFSPROC_READDIR, uiop->uio_procp, cred, &xid);
- if (v3) {
- nfsm_postop_attr(vp, attrflag, &xid);
- if (!error) {
- nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED);
- dnp->n_cookieverf.nfsuquad[0] = *tl++;
- dnp->n_cookieverf.nfsuquad[1] = *tl;
- } else {
- m_freem(mrep);
- goto nfsmout;
- }
+ nfsm_chain_add_32(error, &nmreq, nmreaddirsize);
+ nfsm_chain_build_done(error, &nmreq);
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
+ nfsmout_if(error);
+
+ error = nfs_request(dnp, NULL, &nmreq, NFSPROC_READDIR, ctx,
+ &nmrep, &xid, &status);
+
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_postop_attr_update(error, &nmrep, dnp, &xid);
+ if (!error)
+ error = status;
+ if (nfsvers == NFS_VER3) {
+ nfsm_chain_get_32(error, &nmrep, dnp->n_cookieverf.nfsuquad[0]);
+ nfsm_chain_get_32(error, &nmrep, dnp->n_cookieverf.nfsuquad[1]);
+ }
+ nfsm_chain_get_32(error, &nmrep, more_dirs);
+
+ if (!lockerror) {
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
}
- nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
- more_dirs = fxdr_unsigned(int, *tl);
-
+ nfsmout_if(error);
+
/* loop thru the dir entries, doctoring them to 4bsd form */
while (more_dirs && bigenough) {
- if (v3) {
- nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
- fxdr_hyper(tl, &fileno);
- len = fxdr_unsigned(int, *(tl + 2));
- } else {
- nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED);
- fileno = fxdr_unsigned(u_quad_t, *tl++);
- len = fxdr_unsigned(int, *tl);
- }
- if (len <= 0 || len > NFS_MAXNAMLEN) {
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_64(error, &nmrep, fileno);
+ else
+ nfsm_chain_get_32(error, &nmrep, fileno);
+ nfsm_chain_get_32(error, &nmrep, len);
+ nfsmout_if(error);
+ /* Note: v3 supports longer names, but struct dirent doesn't */
+ /* so we just truncate the names to fit */
+ if (len <= 0) {
error = EBADRPC;
- m_freem(mrep);
goto nfsmout;
}
+ if (len > MAXNAMLEN) {
+ skiplen = len - MAXNAMLEN;
+ len = MAXNAMLEN;
+ } else {
+ skiplen = 0;
+ }
tlen = nfsm_rndup(len);
if (tlen == len)
tlen += 4; /* To ensure null termination */
left = DIRBLKSIZ - blksiz;
if ((tlen + DIRHDSIZ) > left) {
dp->d_reclen += left;
- uiop->uio_iov->iov_base += left;
- uiop->uio_iov->iov_len -= left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -left);
uiop->uio_offset += left;
- uiop->uio_resid -= left;
+ uio_uio_resid_add(uiop, -left);
blksiz = 0;
}
- if ((tlen + DIRHDSIZ) > uiop->uio_resid)
+ if ((tlen + DIRHDSIZ) > uio_uio_resid(uiop))
bigenough = 0;
if (bigenough) {
- dp = (struct dirent *)uiop->uio_iov->iov_base;
+ // LP64todo - fix this!
+ dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop));
dp->d_fileno = (int)fileno;
dp->d_namlen = len;
dp->d_reclen = tlen + DIRHDSIZ;
if (blksiz == DIRBLKSIZ)
blksiz = 0;
uiop->uio_offset += DIRHDSIZ;
- uiop->uio_resid -= DIRHDSIZ;
- uiop->uio_iov->iov_base += DIRHDSIZ;
- uiop->uio_iov->iov_len -= DIRHDSIZ;
- nfsm_mtouio(uiop, len);
- cp = uiop->uio_iov->iov_base;
+#if LP64KERN
+ uio_uio_resid_add(uiop, -((int64_t)DIRHDSIZ));
+ uio_iov_len_add(uiop, -((int64_t)DIRHDSIZ));
+#else
+ uio_uio_resid_add(uiop, -((int)DIRHDSIZ));
+ uio_iov_len_add(uiop, -((int)DIRHDSIZ));
+#endif
+ uio_iov_base_add(uiop, DIRHDSIZ);
+ error = nfsm_chain_get_uio(&nmrep, len, uiop);
+ nfsmout_if(error);
+ // LP64todo - fix this!
+ cp = CAST_DOWN(caddr_t, uio_iov_base(uiop));
tlen -= len;
*cp = '\0'; /* null terminate */
- uiop->uio_iov->iov_base += tlen;
- uiop->uio_iov->iov_len -= tlen;
+ uio_iov_base_add(uiop, tlen);
+ uio_iov_len_add(uiop, -tlen);
uiop->uio_offset += tlen;
- uiop->uio_resid -= tlen;
- } else
- nfsm_adv(nfsm_rndup(len));
- if (v3) {
- nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
+ uio_uio_resid_add(uiop, -tlen);
+ if (skiplen)
+ nfsm_chain_adv(error, &nmrep,
+ nfsm_rndup(len + skiplen) - nfsm_rndup(len));
} else {
- nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED);
+ nfsm_chain_adv(error, &nmrep, nfsm_rndup(len + skiplen));
}
if (bigenough) {
- cookie.nfsuquad[0] = *tl++;
- if (v3)
- cookie.nfsuquad[1] = *tl++;
- } else if (v3)
- tl += 2;
+ nfsm_chain_get_32(error, &nmrep, cookie.nfsuquad[0]);
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_get_32(error, &nmrep, cookie.nfsuquad[1]);
+ } else if (nfsvers == NFS_VER3)
+ nfsm_chain_adv(error, &nmrep, 2 * NFSX_UNSIGNED);
else
- tl++;
- more_dirs = fxdr_unsigned(int, *tl);
+ nfsm_chain_adv(error, &nmrep, NFSX_UNSIGNED);
+ nfsm_chain_get_32(error, &nmrep, more_dirs);
+ nfsmout_if(error);
}
/*
* If at end of rpc data, get the eof boolean
*/
if (!more_dirs) {
- nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
- more_dirs = (fxdr_unsigned(int, *tl) == 0);
+ nfsm_chain_get_32(error, &nmrep, eof);
+ if (!error)
+ more_dirs = (eof == 0);
}
- m_freem(mrep);
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_SHARED)))
+ error = lockerror;
+ nfsmout_if(error);
+ nfsm_chain_cleanup(&nmrep);
+ nfsm_chain_null(&nmreq);
+ }
+ if (!lockerror) {
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
}
/*
* Fill last record, iff any, out to a multiple of DIRBLKSIZ
if (blksiz > 0) {
left = DIRBLKSIZ - blksiz;
dp->d_reclen += left;
- uiop->uio_iov->iov_base += left;
- uiop->uio_iov->iov_len -= left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -left);
uiop->uio_offset += left;
- uiop->uio_resid -= left;
+ uio_uio_resid_add(uiop, -left);
}
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ nfsmout_if(error);
+
/*
* We are now either at the end of the directory or have filled the
* block.
if (bigenough)
dnp->n_direofoffset = uiop->uio_offset;
else {
- if (uiop->uio_resid > 0)
+ if (uio_uio_resid(uiop) > 0)
printf("EEK! readdirrpc resid > 0\n");
cookiep = nfs_getcookie(dnp, uiop->uio_offset, 1);
- *cookiep = cookie;
+ if (cookiep)
+ *cookiep = cookie;
}
+
nfsmout:
+ if (!lockerror)
+ nfs_unlock(dnp);
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
return (error);
}
* NFS V3 readdir plus RPC. Used in place of nfs_readdirrpc().
*/
int
-nfs_readdirplusrpc(vp, uiop, cred)
- struct vnode *vp;
- register struct uio *uiop;
- struct ucred *cred;
+nfs3_readdirplus_rpc(nfsnode_t dnp, struct uio *uiop, vfs_context_t ctx)
{
- register int len, left;
- register struct dirent *dp;
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- register struct vnode *newvp;
- register nfsuint64 *cookiep;
- caddr_t bpos, dpos, cp2, dpossav1, dpossav2;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2, *mdsav1, *mdsav2;
- struct nameidata nami, *ndp = &nami;
- struct componentname *cnp = &ndp->ni_cnd;
+ size_t len, tlen, skiplen, left;
+ struct dirent *dp = NULL;
+ vnode_t newvp;
+ nfsuint64 *cookiep;
+ struct componentname cn, *cnp = &cn;
nfsuint64 cookie;
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- struct nfsnode *dnp = VTONFS(vp), *np;
- nfsfh_t *fhp;
+ struct nfsmount *nmp;
+ nfsnode_t np;
+ u_char *fhp;
u_quad_t fileno;
- int error = 0, tlen, more_dirs = 1, blksiz = 0, doit, bigenough = 1, i;
- int attrflag, fhsize;
+ int error = 0, lockerror, status, more_dirs = 1, blksiz = 0, doit, bigenough = 1;
+ int nfsvers, nmreaddirsize, nmrsize, attrflag, eof;
+ size_t fhsize;
u_int64_t xid, savexid;
+ struct nfs_vattr nvattr;
+ struct nfsm_chain nmreq, nmrep;
+ char *cp;
-#ifndef nolint
- dp = (struct dirent *)0;
-#endif
#if DIAGNOSTIC
+ /* XXX limitation based on need to adjust uio */
if (uiop->uio_iovcnt != 1 || (uiop->uio_offset & (DIRBLKSIZ - 1)) ||
- (uiop->uio_resid & (DIRBLKSIZ - 1)))
- panic("nfs_readdirplusrpc: bad uio");
+ (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)))
+ panic("nfs3_readdirplus_rpc: bad uio");
#endif
- ndp->ni_dvp = vp;
+ nmp = NFSTONMP(dnp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+ nmreaddirsize = nmp->nm_readdirsize;
+ nmrsize = nmp->nm_rsize;
+
+ bzero(cnp, sizeof(*cnp));
newvp = NULLVP;
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_SHARED)))
+ return (lockerror);
+
/*
* If there is no cookie, assume directory was stale.
*/
cookiep = nfs_getcookie(dnp, uiop->uio_offset, 0);
if (cookiep)
cookie = *cookiep;
- else
+ else {
+ nfs_unlock(dnp);
return (NFSERR_BAD_COOKIE);
+ }
+
/*
* Loop around doing readdir rpc's of size nm_readdirsize
* truncated to a multiple of DIRBLKSIZ.
* The stopping criteria is EOF or buffer full.
*/
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
while (more_dirs && bigenough) {
- nfsstats.rpccnt[NFSPROC_READDIRPLUS]++;
- nfsm_reqhead(vp, NFSPROC_READDIRPLUS,
- NFSX_FH(1) + 6 * NFSX_UNSIGNED);
- nfsm_fhtom(vp, 1);
- nfsm_build(tl, u_long *, 6 * NFSX_UNSIGNED);
- *tl++ = cookie.nfsuquad[0];
- *tl++ = cookie.nfsuquad[1];
- *tl++ = dnp->n_cookieverf.nfsuquad[0];
- *tl++ = dnp->n_cookieverf.nfsuquad[1];
- *tl++ = txdr_unsigned(nmp->nm_readdirsize);
- *tl = txdr_unsigned(nmp->nm_rsize);
- nfsm_request(vp, NFSPROC_READDIRPLUS, uiop->uio_procp, cred,
- &xid);
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(NFS_VER3) + 6 * NFSX_UNSIGNED);
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ /* opaque values don't need swapping, but as long */
+ /* as we are consistent about it, it should be ok */
+ nfsm_chain_add_32(error, &nmreq, cookie.nfsuquad[0]);
+ nfsm_chain_add_32(error, &nmreq, cookie.nfsuquad[1]);
+ nfsm_chain_add_32(error, &nmreq, dnp->n_cookieverf.nfsuquad[0]);
+ nfsm_chain_add_32(error, &nmreq, dnp->n_cookieverf.nfsuquad[1]);
+ nfsm_chain_add_32(error, &nmreq, nmreaddirsize);
+ nfsm_chain_add_32(error, &nmreq, nmrsize);
+ nfsm_chain_build_done(error, &nmreq);
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
+ nfsmout_if(error);
+
+ error = nfs_request(dnp, NULL, &nmreq, NFSPROC_READDIRPLUS, ctx,
+ &nmrep, &xid, &status);
+
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+
savexid = xid;
- nfsm_postop_attr(vp, attrflag, &xid);
- if (error) {
- m_freem(mrep);
- goto nfsmout;
+ nfsm_chain_postop_attr_update(error, &nmrep, dnp, &xid);
+ if (!error)
+ error = status;
+ nfsm_chain_get_32(error, &nmrep, dnp->n_cookieverf.nfsuquad[0]);
+ nfsm_chain_get_32(error, &nmrep, dnp->n_cookieverf.nfsuquad[1]);
+ nfsm_chain_get_32(error, &nmrep, more_dirs);
+
+ if (!lockerror) {
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
}
- nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
- dnp->n_cookieverf.nfsuquad[0] = *tl++;
- dnp->n_cookieverf.nfsuquad[1] = *tl++;
- more_dirs = fxdr_unsigned(int, *tl);
+ nfsmout_if(error);
+ nfsmout_if(error);
/* loop thru the dir entries, doctoring them to 4bsd form */
while (more_dirs && bigenough) {
- nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
- fxdr_hyper(tl, &fileno);
- len = fxdr_unsigned(int, *(tl + 2));
- if (len <= 0 || len > NFS_MAXNAMLEN) {
+ nfsm_chain_get_64(error, &nmrep, fileno);
+ nfsm_chain_get_32(error, &nmrep, len);
+ nfsmout_if(error);
+ /* Note: v3 supports longer names, but struct dirent doesn't */
+ /* so we just truncate the names to fit */
+ if (len <= 0) {
error = EBADRPC;
- m_freem(mrep);
goto nfsmout;
}
+ if (len > MAXNAMLEN) {
+ skiplen = len - MAXNAMLEN;
+ len = MAXNAMLEN;
+ } else {
+ skiplen = 0;
+ }
tlen = nfsm_rndup(len);
if (tlen == len)
- tlen += 4; /* To ensure null termination*/
+ tlen += 4; /* To ensure null termination */
left = DIRBLKSIZ - blksiz;
if ((tlen + DIRHDSIZ) > left) {
dp->d_reclen += left;
- uiop->uio_iov->iov_base += left;
- uiop->uio_iov->iov_len -= left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -left);
uiop->uio_offset += left;
- uiop->uio_resid -= left;
+ uio_uio_resid_add(uiop, -left);
blksiz = 0;
}
- if ((tlen + DIRHDSIZ) > uiop->uio_resid)
+ if ((tlen + DIRHDSIZ) > uio_uio_resid(uiop))
bigenough = 0;
if (bigenough) {
- dp = (struct dirent *)uiop->uio_iov->iov_base;
+ // LP64todo - fix this!
+ dp = (struct dirent *) CAST_DOWN(caddr_t, uio_iov_base(uiop));
dp->d_fileno = (int)fileno;
dp->d_namlen = len;
dp->d_reclen = tlen + DIRHDSIZ;
if (blksiz == DIRBLKSIZ)
blksiz = 0;
uiop->uio_offset += DIRHDSIZ;
- uiop->uio_resid -= DIRHDSIZ;
- uiop->uio_iov->iov_base += DIRHDSIZ;
- uiop->uio_iov->iov_len -= DIRHDSIZ;
- cnp->cn_nameptr = uiop->uio_iov->iov_base;
+#if LP64KERN
+ uio_uio_resid_add(uiop, -((int64_t)DIRHDSIZ));
+ uio_iov_len_add(uiop, -((int64_t)DIRHDSIZ));
+#else
+ uio_uio_resid_add(uiop, -((int)DIRHDSIZ));
+ uio_iov_len_add(uiop, -((int)DIRHDSIZ));
+#endif
+ uio_iov_base_add(uiop, DIRHDSIZ);
+ // LP64todo - fix this!
+ cnp->cn_nameptr = CAST_DOWN(caddr_t, uio_iov_base(uiop));
cnp->cn_namelen = len;
- nfsm_mtouio(uiop, len);
- cp = uiop->uio_iov->iov_base;
+ error = nfsm_chain_get_uio(&nmrep, len, uiop);
+ nfsmout_if(error);
+ cp = CAST_DOWN(caddr_t, uio_iov_base(uiop));
tlen -= len;
*cp = '\0';
- uiop->uio_iov->iov_base += tlen;
- uiop->uio_iov->iov_len -= tlen;
+ uio_iov_base_add(uiop, tlen);
+ uio_iov_len_add(uiop, -tlen);
uiop->uio_offset += tlen;
- uiop->uio_resid -= tlen;
- } else
- nfsm_adv(nfsm_rndup(len));
- nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
+ uio_uio_resid_add(uiop, -tlen);
+ if (skiplen)
+ nfsm_chain_adv(error, &nmrep,
+ nfsm_rndup(len + skiplen) - nfsm_rndup(len));
+ } else {
+ nfsm_chain_adv(error, &nmrep, nfsm_rndup(len + skiplen));
+ }
if (bigenough) {
- cookie.nfsuquad[0] = *tl++;
- cookie.nfsuquad[1] = *tl++;
+ nfsm_chain_get_32(error, &nmrep, cookie.nfsuquad[0]);
+ nfsm_chain_get_32(error, &nmrep, cookie.nfsuquad[1]);
} else
- tl += 2;
+ nfsm_chain_adv(error, &nmrep, 2 * NFSX_UNSIGNED);
- /*
- * Since the attributes are before the file handle
- * (sigh), we must skip over the attributes and then
- * come back and get them.
- */
- attrflag = fxdr_unsigned(int, *tl);
+ nfsm_chain_get_32(error, &nmrep, attrflag);
+ nfsmout_if(error);
if (attrflag) {
- dpossav1 = dpos;
- mdsav1 = md;
- nfsm_adv(NFSX_V3FATTR);
- nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
- doit = fxdr_unsigned(int, *tl);
+ /* grab attributes */
+ error = nfs_parsefattr(&nmrep, NFS_VER3, &nvattr);
+ nfsmout_if(error);
+ dp->d_type = IFTODT(VTTOIF(nvattr.nva_type));
+ /* check for file handle */
+ nfsm_chain_get_32(error, &nmrep, doit);
+ nfsmout_if(error);
if (doit) {
- nfsm_getfh(fhp, fhsize, 1);
+ nfsm_chain_get_fh_ptr(error, &nmrep, NFS_VER3, fhp, fhsize);
+ nfsmout_if(error);
if (NFS_CMPFH(dnp, fhp, fhsize)) {
- VREF(vp);
- newvp = vp;
- np = dnp;
+ error = vnode_ref(NFSTOV(dnp));
+ if (error) {
+ doit = 0;
+ } else {
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ if (error) {
+ vnode_rele(NFSTOV(dnp));
+ goto nfsmout;
+ }
+ newvp = NFSTOV(dnp);
+ np = dnp;
+ }
+ } else if (!bigenough ||
+ (cnp->cn_namelen == 2 &&
+ cnp->cn_nameptr[1] == '.' &&
+ cnp->cn_nameptr[0] == '.')) {
+ /*
+ * XXXmacko I don't think this ".." thing is a problem anymore.
+ * don't doit if we can't guarantee
+ * that this entry is NOT ".." because
+ * we would have to drop the lock on
+ * the directory before getting the
+ * lock on the ".." vnode... and we
+ * don't want to drop the dvp lock in
+ * the middle of a readdirplus.
+ */
+ doit = 0;
} else {
- if ((error = nfs_nget(vp->v_mount, fhp,
- fhsize, &np)))
+ cnp->cn_hash = 0;
+
+ error = nfs_nget(NFSTOMP(dnp), dnp, cnp,
+ fhp, fhsize, &nvattr, &xid, NG_MAKEENTRY, &np);
+ if (error)
doit = 0;
else
newvp = NFSTOV(np);
}
}
- if (doit) {
- dpossav2 = dpos;
- dpos = dpossav1;
- mdsav2 = md;
- md = mdsav1;
+ /* update attributes if not already updated */
+ if (doit && bigenough && (np->n_xid <= savexid)) {
xid = savexid;
- nfsm_loadattr(newvp, (struct vattr *)0, &xid);
- dpos = dpossav2;
- md = mdsav2;
- dp->d_type =
- IFTODT(VTTOIF(np->n_vattr.va_type));
- ndp->ni_vp = newvp;
- cnp->cn_hash = 0;
- for (cp = cnp->cn_nameptr, i = 1; i <= len;
- i++, cp++)
- cnp->cn_hash += (unsigned char)*cp * i;
- if (cnp->cn_namelen <= NCHNAMLEN)
- cache_enter(ndp->ni_dvp, ndp->ni_vp, cnp);
+ nfs_loadattrcache(np, &nvattr, &xid, 0);
+ /* any error can be ignored */
}
} else {
/* Just skip over the file handle */
- nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
- i = fxdr_unsigned(int, *tl);
- nfsm_adv(nfsm_rndup(i));
+ nfsm_chain_get_32(error, &nmrep, fhsize);
+ nfsm_chain_adv(error, &nmrep, nfsm_rndup(fhsize));
}
if (newvp != NULLVP) {
- vrele(newvp);
+ nfs_unlock(np);
+ if (newvp == NFSTOV(dnp))
+ vnode_rele(newvp);
+ else
+ vnode_put(newvp);
newvp = NULLVP;
}
- nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
- more_dirs = fxdr_unsigned(int, *tl);
+ nfsm_chain_get_32(error, &nmrep, more_dirs);
+ nfsmout_if(error);
}
/*
* If at end of rpc data, get the eof boolean
*/
if (!more_dirs) {
- nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
- more_dirs = (fxdr_unsigned(int, *tl) == 0);
+ nfsm_chain_get_32(error, &nmrep, eof);
+ if (!error)
+ more_dirs = (eof == 0);
}
- m_freem(mrep);
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_SHARED)))
+ error = lockerror;
+ nfsmout_if(error);
+ nfsm_chain_cleanup(&nmrep);
+ nfsm_chain_null(&nmreq);
+ }
+ if (!lockerror) {
+ nfs_unlock(dnp);
+ lockerror = ENOENT;
}
/*
- * Fill last record, iff any, out to a multiple of NFS_DIRBLKSIZ
+ * Fill last record, iff any, out to a multiple of DIRBLKSIZ
* by increasing d_reclen for the last record.
*/
if (blksiz > 0) {
left = DIRBLKSIZ - blksiz;
dp->d_reclen += left;
- uiop->uio_iov->iov_base += left;
- uiop->uio_iov->iov_len -= left;
+ uio_iov_base_add(uiop, left);
+ uio_iov_len_add(uiop, -left);
uiop->uio_offset += left;
- uiop->uio_resid -= left;
+ uio_uio_resid_add(uiop, -left);
}
+ if ((lockerror = nfs_lock(dnp, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ nfsmout_if(error);
+
/*
* We are now either at the end of the directory or have filled the
* block.
if (bigenough)
dnp->n_direofoffset = uiop->uio_offset;
else {
- if (uiop->uio_resid > 0)
- printf("EEK! readdirplusrpc resid > 0\n");
+ if (uio_uio_resid(uiop) > 0)
+ printf("EEK! readdirplus_rpc resid > 0\n");
cookiep = nfs_getcookie(dnp, uiop->uio_offset, 1);
- *cookiep = cookie;
+ if (cookiep)
+ *cookiep = cookie;
}
+
nfsmout:
- if (newvp != NULLVP) {
- if (newvp == vp)
- vrele(newvp);
- else
- vput(newvp);
- newvp = NULLVP;
- }
+ if (!lockerror)
+ nfs_unlock(dnp);
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
return (error);
}
/*
* Silly rename. To make the NFS filesystem that is stateless look a little
* more like the "ufs" a remove of an active vnode is translated to a rename
- * to a funny looking filename that is removed by nfs_inactive on the
+ * to a funny looking filename that is removed by nfs_vnop_inactive on the
* nfsnode. There is the potential for another process on a different client
- * to create the same funny name between the nfs_lookitup() fails and the
- * nfs_rename() completes, but...
+ * to create the same funny name between when the lookitup() fails and the
+ * rename() completes, but...
*/
+
+/* format of "random" silly names - includes a number and pid */
+/* (note: shouldn't exceed size of nfs_sillyrename.nsr_name) */
+#define NFS_SILLYNAME_FORMAT ".nfs.%08x.%04x"
+/* starting from zero isn't silly enough */
+static uint32_t nfs_sillyrename_number = 0x20051025;
+
static int
-nfs_sillyrename(dvp, vp, cnp)
- struct vnode *dvp, *vp;
- struct componentname *cnp;
+nfs_sillyrename(
+ nfsnode_t dnp,
+ nfsnode_t np,
+ struct componentname *cnp,
+ vfs_context_t ctx)
{
- register struct sillyrename *sp;
- struct nfsnode *np;
+ struct nfs_sillyrename *nsp;
int error;
short pid;
- struct ucred *cred;
+ kauth_cred_t cred;
+ uint32_t num;
+ struct nfsmount *nmp;
- cache_purge(dvp);
- np = VTONFS(vp);
-#if DIAGNOSTIC
- if (vp->v_type == VDIR)
- panic("nfs_sillyrename: dir");
-#endif
- MALLOC_ZONE(sp, struct sillyrename *,
- sizeof (struct sillyrename), M_NFSREQ, M_WAITOK);
- sp->s_cred = crdup(cnp->cn_cred);
- sp->s_dvp = dvp;
- VREF(dvp);
+ nmp = NFSTONMP(dnp);
+ if (!nmp)
+ return (ENXIO);
+
+ cache_purge(NFSTOV(np));
+
+ MALLOC_ZONE(nsp, struct nfs_sillyrename *,
+ sizeof (struct nfs_sillyrename), M_NFSREQ, M_WAITOK);
+ if (!nsp)
+ return (ENOMEM);
+ cred = vfs_context_ucred(ctx);
+ kauth_cred_ref(cred);
+ nsp->nsr_cred = cred;
+ nsp->nsr_dnp = dnp;
+ error = vnode_ref(NFSTOV(dnp));
+ if (error)
+ goto bad_norele;
/* Fudge together a funny name */
- pid = cnp->cn_proc->p_pid;
- sp->s_namlen = sprintf(sp->s_name, ".nfsA%04x4.4", pid);
+ pid = vfs_context_pid(ctx);
+ num = OSAddAtomic(1, (SInt32*)&nfs_sillyrename_number);
+ nsp->nsr_namlen = snprintf(nsp->nsr_name, sizeof(nsp->nsr_name),
+ NFS_SILLYNAME_FORMAT, num, (pid & 0xffff));
+ if (nsp->nsr_namlen >= (int)sizeof(nsp->nsr_name))
+ nsp->nsr_namlen = sizeof(nsp->nsr_name) - 1;
/* Try lookitups until we get one that isn't there */
- while (nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred,
- cnp->cn_proc, (struct nfsnode **)0) == 0) {
- sp->s_name[4]++;
- if (sp->s_name[4] > 'z') {
- error = EINVAL;
- goto bad;
- }
- }
- if ((error = nfs_renameit(dvp, cnp, sp)))
- goto bad;
- error = nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred,
- cnp->cn_proc, &np);
-#if DIAGNOSTIC
- kprintf("sillyrename: %s, vp=%x, np=%x, dvp=%x\n",
- &sp->s_name[0], (unsigned)vp, (unsigned)np, (unsigned)dvp);
-#endif
- np->n_sillyrename = sp;
- return (0);
-bad:
- vrele(sp->s_dvp);
- cred = sp->s_cred;
- sp->s_cred = NOCRED;
- crfree(cred);
- _FREE_ZONE((caddr_t)sp, sizeof (struct sillyrename), M_NFSREQ);
- return (error);
-}
-
-/*
- * Look up a file name and optionally either update the file handle or
- * allocate an nfsnode, depending on the value of npp.
- * npp == NULL --> just do the lookup
- * *npp == NULL --> allocate a new nfsnode and make sure attributes are
- * handled too
- * *npp != NULL --> update the file handle in the vnode
- */
-static int
-nfs_lookitup(dvp, name, len, cred, procp, npp)
- register struct vnode *dvp;
- char *name;
- int len;
- struct ucred *cred;
- struct proc *procp;
- struct nfsnode **npp;
-{
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- struct vnode *newvp = (struct vnode *)0;
- struct nfsnode *np, *dnp = VTONFS(dvp);
- caddr_t bpos, dpos, cp2;
- int error = 0, fhlen, attrflag;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- nfsfh_t *nfhp;
- int v3 = NFS_ISV3(dvp);
- u_int64_t xid;
-
- nfsstats.rpccnt[NFSPROC_LOOKUP]++;
- nfsm_reqhead(dvp, NFSPROC_LOOKUP,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len));
- nfsm_fhtom(dvp, v3);
- nfsm_strtom(name, len, NFS_MAXNAMLEN);
- nfsm_request(dvp, NFSPROC_LOOKUP, procp, cred, &xid);
- if (npp && !error) {
- nfsm_getfh(nfhp, fhlen, v3);
- if (*npp) {
- np = *npp;
- if (np->n_fhsize > NFS_SMALLFH && fhlen <= NFS_SMALLFH) {
- _FREE_ZONE((caddr_t)np->n_fhp,
- np->n_fhsize, M_NFSBIGFH);
- np->n_fhp = &np->n_fh;
- } else if (np->n_fhsize <= NFS_SMALLFH && fhlen>NFS_SMALLFH)
- MALLOC_ZONE(np->n_fhp, nfsfh_t *,
- fhlen, M_NFSBIGFH, M_WAITOK);
- bcopy((caddr_t)nfhp, (caddr_t)np->n_fhp, fhlen);
- np->n_fhsize = fhlen;
- newvp = NFSTOV(np);
- } else if (NFS_CMPFH(dnp, nfhp, fhlen)) {
- VREF(dvp);
- newvp = dvp;
- } else {
- error = nfs_nget(dvp->v_mount, nfhp, fhlen, &np);
- if (error) {
- m_freem(mrep);
- return (error);
- }
- newvp = NFSTOV(np);
- }
- if (v3) {
- nfsm_postop_attr(newvp, attrflag, &xid);
- if (!attrflag && *npp == NULL) {
- m_freem(mrep);
- if (newvp == dvp)
- vrele(newvp);
- else
- vput(newvp);
- return (ENOENT);
- }
- } else
- nfsm_loadattr(newvp, (struct vattr *)0, &xid);
- }
- nfsm_reqdone;
- if (npp && *npp == NULL) {
- if (error) {
- if (newvp)
- if (newvp == dvp)
- vrele(newvp);
- else
- vput(newvp);
- } else
- *npp = np;
- }
- return (error);
-}
-
-/*
- * Nfs Version 3 commit rpc
- */
-static int
-nfs_commit(vp, offset, cnt, cred, procp)
- register struct vnode *vp;
- u_quad_t offset;
- int cnt;
- struct ucred *cred;
- struct proc *procp;
-{
- register caddr_t cp;
- register u_long *tl;
- register int t1, t2;
- register struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- u_int64_t xid;
-
- FSDBG(521, vp, offset, cnt, nmp->nm_flag);
- if ((nmp->nm_flag & NFSMNT_HASWRITEVERF) == 0)
- return (0);
- nfsstats.rpccnt[NFSPROC_COMMIT]++;
- nfsm_reqhead(vp, NFSPROC_COMMIT, NFSX_FH(1));
- nfsm_fhtom(vp, 1);
- nfsm_build(tl, u_long *, 3 * NFSX_UNSIGNED);
- txdr_hyper(&offset, tl);
- tl += 2;
- *tl = txdr_unsigned(cnt);
- nfsm_request(vp, NFSPROC_COMMIT, procp, cred, &xid);
- nfsm_wcc_data(vp, wccflag, &xid);
- if (!error) {
- nfsm_dissect(tl, u_long *, NFSX_V3WRITEVERF);
- if (bcmp((caddr_t)nmp->nm_verf, (caddr_t)tl,
- NFSX_V3WRITEVERF)) {
- bcopy((caddr_t)tl, (caddr_t)nmp->nm_verf,
- NFSX_V3WRITEVERF);
- error = NFSERR_STALEWRITEVERF;
- }
+ while (nfs_lookitup(dnp, nsp->nsr_name, nsp->nsr_namlen, ctx, NULL) == 0) {
+ num = OSAddAtomic(1, (SInt32*)&nfs_sillyrename_number);
+ nsp->nsr_namlen = snprintf(nsp->nsr_name, sizeof(nsp->nsr_name),
+ NFS_SILLYNAME_FORMAT, num, (pid & 0xffff));
+ if (nsp->nsr_namlen >= (int)sizeof(nsp->nsr_name))
+ nsp->nsr_namlen = sizeof(nsp->nsr_name) - 1;
}
- nfsm_reqdone;
- return (error);
-}
-
-/*
- * Kludge City..
- * - make nfs_bmap() essentially a no-op that does no translation
- * - do nfs_strategy() by doing I/O with nfs_readrpc/nfs_writerpc
- * (Maybe I could use the process's page mapping, but I was concerned that
- * Kernel Write might not be enabled and also figured copyout() would do
- * a lot more work than bcopy() and also it currently happens in the
- * context of the swapper process (2).
- */
-static int
-nfs_bmap(ap)
- struct vop_bmap_args /* {
- struct vnode *a_vp;
- daddr_t a_bn;
- struct vnode **a_vpp;
- daddr_t *a_bnp;
- int *a_runp;
- int *a_runb;
- } */ *ap;
-{
- register struct vnode *vp = ap->a_vp;
- int devBlockSize = DEV_BSIZE;
-
- if (ap->a_vpp != NULL)
- *ap->a_vpp = vp;
- if (ap->a_bnp != NULL)
- *ap->a_bnp = ap->a_bn * btodb(vp->v_mount->mnt_stat.f_iosize,
- devBlockSize);
- if (ap->a_runp != NULL)
- *ap->a_runp = 0;
-#ifdef notyet
- if (ap->a_runb != NULL)
- *ap->a_runb = 0;
-#endif
- return (0);
-}
-
-/*
- * Strategy routine.
- * For async requests when nfsiod(s) are running, queue the request by
- * calling nfs_asyncio(), otherwise just all nfs_doio() to do the
- * request.
- */
-static int
-nfs_strategy(ap)
- struct vop_strategy_args *ap;
-{
- register struct buf *bp = ap->a_bp;
- struct ucred *cr;
- struct proc *p;
- int error = 0;
-
- if (ISSET(bp->b_flags, B_PHYS))
- panic("nfs_strategy: physio");
- if (ISSET(bp->b_flags, B_ASYNC))
- p = (struct proc *)0;
- else
- p = current_proc(); /* XXX */
- if (ISSET(bp->b_flags, B_READ))
- cr = bp->b_rcred;
- else
- cr = bp->b_wcred;
- /*
- * If the op is asynchronous and an i/o daemon is waiting
- * queue the request, wake it up and wait for completion
- * otherwise just do it ourselves.
- */
- if (!ISSET(bp->b_flags, B_ASYNC) || nfs_asyncio(bp, NOCRED))
- error = nfs_doio(bp, cr, p);
- return (error);
-}
-
-/*
- * Mmap a file
- *
- * NB Currently unsupported.
- */
-/* ARGSUSED */
-static int
-nfs_mmap(ap)
- struct vop_mmap_args /* {
- struct vnode *a_vp;
- int a_fflags;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
-{
-
- return (EINVAL);
-}
-
-/*
- * fsync vnode op. Just call nfs_flush() with commit == 1.
- */
-/* ARGSUSED */
-static int
-nfs_fsync(ap)
- struct vop_fsync_args /* {
- struct vnodeop_desc *a_desc;
- struct vnode * a_vp;
- struct ucred * a_cred;
- int a_waitfor;
- struct proc * a_p;
- } */ *ap;
-{
- return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_p, 1));
-}
-
-/*
- * Flush all the blocks associated with a vnode.
- * Walk through the buffer pool and push any dirty pages
- * associated with the vnode.
- */
-static int
-nfs_flush(vp, cred, waitfor, p, commit)
- register struct vnode *vp;
- struct ucred *cred;
- int waitfor;
- struct proc *p;
- int commit;
-{
- register struct nfsnode *np = VTONFS(vp);
- register struct buf *bp;
- register int i;
- struct buf *nbp;
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- int s, error = 0, slptimeo = 0, slpflag = 0, retv, bvecpos, err;
- int passone = 1;
- u_quad_t off, endoff, toff;
- struct ucred* wcred = NULL;
- struct buf **bvec = NULL;
-#ifndef NFS_COMMITBVECSIZ
-#define NFS_COMMITBVECSIZ 20
-#endif
- struct buf *bvec_on_stack[NFS_COMMITBVECSIZ];
- int bvecsize = 0, bveccount;
- kern_return_t kret;
- upl_t upl;
-
- FSDBG_TOP(517, vp, np, waitfor, commit);
-
- if (nmp->nm_flag & NFSMNT_INT)
- slpflag = PCATCH;
- if (!commit)
- passone = 0;
-
- /*
- * A b_flags == (B_DELWRI | B_NEEDCOMMIT) block has been written to the
- * server, but nas not been committed to stable storage on the server
- * yet. On the first pass, the byte range is worked out and the commit
- * rpc is done. On the second pass, nfs_writebp() is called to do the
- * job.
- */
-again:
- FSDBG(518, vp->v_dirtyblkhd.lh_first, np->n_flag, 0, 0);
- if (vp->v_dirtyblkhd.lh_first)
- np->n_flag |= NMODIFIED;
- off = (u_quad_t)-1;
- endoff = 0;
- bvecpos = 0;
- if (NFS_ISV3(vp) && commit) {
- s = splbio();
- /*
- * Count up how many buffers waiting for a commit.
- * This is an upper bound - any with dirty pages must be
- * written not commited.
- */
- bveccount = 0;
- for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) {
- nbp = bp->b_vnbufs.le_next;
- if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT))
- == (B_DELWRI | B_NEEDCOMMIT))
- bveccount++;
- FSDBG(519, bp, bp->b_flags, bveccount, 0);
- }
- /*
- * Allocate space to remember the list of bufs to commit. It is
- * important to use M_NOWAIT here to avoid a race with nfs_write
- * If we can't get memory (for whatever reason), we will end up
- * committing the buffers one-by-one in the loop below.
- */
- if (bvec != NULL && bvec != bvec_on_stack)
- _FREE(bvec, M_TEMP);
- if (bveccount > NFS_COMMITBVECSIZ) {
- MALLOC(bvec, struct buf **,
- bveccount * sizeof(struct buf *), M_TEMP,
- M_NOWAIT);
- if (bvec == NULL) {
- bvec = bvec_on_stack;
- bvecsize = NFS_COMMITBVECSIZ;
- } else
- bvecsize = bveccount;
- } else {
- bvec = bvec_on_stack;
- bvecsize = NFS_COMMITBVECSIZ;
- }
- FSDBG(519, 0, bvecsize, bveccount, 0);
- for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) {
- nbp = bp->b_vnbufs.le_next;
+ /* now, do the rename */
+ error = nmp->nm_funcs->nf_rename_rpc(dnp, cnp->cn_nameptr, cnp->cn_namelen,
+ dnp, nsp->nsr_name, nsp->nsr_namlen, ctx);
+ if (!error && (dnp->n_flag & NNEGNCENTRIES)) {
+ dnp->n_flag &= ~NNEGNCENTRIES;
+ cache_purge_negatives(NFSTOV(dnp));
+ }
+ FSDBG(267, dnp, np, num, error);
+ if (error)
+ goto bad;
+ error = nfs_lookitup(dnp, nsp->nsr_name, nsp->nsr_namlen, ctx, &np);
+ np->n_sillyrename = nsp;
+ return (0);
+bad:
+ vnode_rele(NFSTOV(dnp));
+bad_norele:
+ nsp->nsr_cred = NOCRED;
+ kauth_cred_unref(&cred);
+ FREE_ZONE(nsp, sizeof(*nsp), M_NFSREQ);
+ return (error);
+}
- FSDBG(520, bp, bp->b_flags, bvecpos, bp->b_bufsize);
- FSDBG(520, bp->b_validoff, bp->b_validend,
- bp->b_dirtyoff, bp->b_dirtyend);
- if (bvecpos >= bvecsize)
- break;
- if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT))
- != (B_DELWRI | B_NEEDCOMMIT))
- continue;
+int
+nfs3_lookup_rpc_async(
+ nfsnode_t dnp,
+ char *name,
+ int namelen,
+ vfs_context_t ctx,
+ struct nfsreq **reqp)
+{
+ struct nfsmount *nmp;
+ struct nfsm_chain nmreq;
+ int error = 0, nfsvers;
+
+ nmp = NFSTONMP(dnp);
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ nfsm_chain_null(&nmreq);
+
+ nfsm_chain_build_alloc_init(error, &nmreq,
+ NFSX_FH(nfsvers) + NFSX_UNSIGNED + nfsm_rndup(namelen));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, dnp->n_fhp, dnp->n_fhsize);
+ nfsm_chain_add_string(error, &nmreq, name, namelen);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request_async(dnp, NULL, &nmreq, NFSPROC_LOOKUP,
+ vfs_context_thread(ctx), vfs_context_ucred(ctx), NULL, reqp);
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ return (error);
+}
- bremfree(bp);
- SET(bp->b_flags, B_BUSY);
- /*
- * we need a upl to see if the page has been
- * dirtied (think mmap) since the unstable write, and
- * so to prevent vm from paging during our commit rpc
- */
- if (ISSET(bp->b_flags, B_PAGELIST)) {
- upl = bp->b_pagelist;
- } else {
- kret = ubc_create_upl(vp, ubc_blktooff(vp, bp->b_lblkno),
- bp->b_bufsize, &upl,
- NULL, UPL_PRECIOUS);
- if (kret != KERN_SUCCESS)
- panic("nfs_flush: create upl %d", kret);
-#ifdef UBC_DEBUG
- upl_ubc_alias_set(upl, current_act(), 1);
-#endif /* UBC_DEBUG */
- }
- if (upl_dirty_page(ubc_upl_pageinfo(upl), 0)) {
- if (!ISSET(bp->b_flags, B_PAGELIST)) {
- err = ubc_upl_abort(upl, NULL);
- if (err)
- printf("nfs_flush: upl abort %d\n", err);
- }
- /*
- * Any/all of it may be modified...
- */
- bp->b_dirtyoff = bp->b_validoff;
- bp->b_dirtyend = bp->b_validend;
- CLR(bp->b_flags, B_NEEDCOMMIT);
- /* blocking calls were made, re-evaluate nbp */
- nbp = bp->b_vnbufs.le_next;
- brelse(bp); /* XXX may block. Is using nbp ok??? */
- continue;
- }
- if (!ISSET(bp->b_flags, B_PAGELIST)) {
- bp->b_pagelist = upl;
- SET(bp->b_flags, B_PAGELIST);
- ubc_upl_map(upl, (vm_address_t *)&bp->b_data);
- }
+int
+nfs3_lookup_rpc_async_finish(
+ nfsnode_t dnp,
+ vfs_context_t ctx,
+ struct nfsreq *req,
+ u_int64_t *xidp,
+ fhandle_t *fhp,
+ struct nfs_vattr *nvap)
+{
+ int error = 0, status, nfsvers, attrflag;
+ u_int64_t xid;
+ struct nfsmount *nmp;
+ struct nfsm_chain nmrep;
- /* blocking calls were made, re-evaluate nbp */
- nbp = bp->b_vnbufs.le_next;
+ nmp = NFSTONMP(dnp);
+ nfsvers = nmp->nm_vers;
- /*
- * Work out if all buffers are using the same cred
- * so we can deal with them all with one commit.
- */
- if (wcred == NULL)
- wcred = bp->b_wcred;
- else if (wcred != bp->b_wcred)
- wcred = NOCRED;
- SET(bp->b_flags, B_WRITEINPROG);
+ nfsm_chain_null(&nmrep);
- /*
- * A list of these buffers is kept so that the
- * second loop knows which buffers have actually
- * been committed. This is necessary, since there
- * may be a race between the commit rpc and new
- * uncommitted writes on the file.
- */
- bvec[bvecpos++] = bp;
- toff = ((u_quad_t)bp->b_blkno) * DEV_BSIZE +
- bp->b_dirtyoff;
- if (toff < off)
- off = toff;
- toff += (u_quad_t)(bp->b_dirtyend - bp->b_dirtyoff);
- if (toff > endoff)
- endoff = toff;
- }
- splx(s);
+ error = nfs_request_async_finish(req, &nmrep, xidp, &status);
+
+ xid = *xidp;
+ if (error || status) {
+ if (nfsvers == NFS_VER3)
+ nfsm_chain_postop_attr_update(error, &nmrep, dnp, &xid);
+ if (!error)
+ error = status;
+ goto nfsmout;
}
- if (bvecpos > 0) {
- /*
- * Commit data on the server, as required.
- * If all bufs are using the same wcred, then use that with
- * one call for all of them, otherwise commit each one
- * separately.
- */
- if (wcred != NOCRED)
- retv = nfs_commit(vp, off, (int)(endoff - off),
- wcred, p);
- else {
- retv = 0;
- for (i = 0; i < bvecpos; i++) {
- off_t off, size;
- bp = bvec[i];
- FSDBG(522, bp, bp->b_blkno * DEV_BSIZE,
- bp->b_dirtyoff, bp->b_dirtyend);
- off = ((u_quad_t)bp->b_blkno) * DEV_BSIZE +
- bp->b_dirtyoff;
- size = (u_quad_t)(bp->b_dirtyend
- - bp->b_dirtyoff);
- retv = nfs_commit(vp, off, (int)size,
- bp->b_wcred, p);
- if (retv) break;
- }
- }
- if (retv == NFSERR_STALEWRITEVERF)
- nfs_clearcommit(vp->v_mount);
+ nfsmout_if(error || !fhp || !nvap);
- /*
- * Now, either mark the blocks I/O done or mark the
- * blocks dirty, depending on whether the commit
- * succeeded.
- */
- for (i = 0; i < bvecpos; i++) {
- bp = bvec[i];
- FSDBG(523, bp, retv, bp->b_flags, 0);
- CLR(bp->b_flags, (B_NEEDCOMMIT | B_WRITEINPROG));
- if (retv) {
- brelse(bp);
- } else {
- int oldflags = bp->b_flags;
-
- s = splbio();
- vp->v_numoutput++;
- SET(bp->b_flags, B_ASYNC);
- CLR(bp->b_flags,
- (B_READ|B_DONE|B_ERROR|B_DELWRI));
- if (ISSET(oldflags, B_DELWRI)) {
- extern int nbdwrite;
- nbdwrite--;
- wakeup((caddr_t)&nbdwrite);
- }
- bp->b_dirtyoff = bp->b_dirtyend = 0;
- reassignbuf(bp, vp);
- splx(s);
- biodone(bp);
- }
- }
+ /* get the file handle */
+ nfsm_chain_get_fh(error, &nmrep, nfsvers, fhp);
+ /* get the attributes */
+ if (nfsvers == NFS_VER3) {
+ nfsm_chain_postop_attr_get(error, &nmrep, attrflag, nvap);
+ nfsm_chain_postop_attr_update(error, &nmrep, dnp, &xid);
+ if (!error && !attrflag)
+ error = nfs3_getattr_rpc(NULL, NFSTOMP(dnp), fhp->fh_data, fhp->fh_len, ctx, nvap, xidp);
+ } else {
+ error = nfs_parsefattr(&nmrep, nfsvers, nvap);
}
- /*
- * Start/do any write(s) that are required. There is a window here
- * where B_BUSY protects the buffer. The vm pages have been freed up,
- * yet B_BUSY is set. Don't think you will hit any busy/incore problems
- * while we sleep, but not absolutely sure. Keep an eye on it. Otherwise
- * we will have to hold vm page across this locked. - EKN
- */
-loop:
- if (current_thread_aborted()) {
- error = EINTR;
- goto done;
- }
- s = splbio();
- for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) {
- nbp = bp->b_vnbufs.le_next;
- if (ISSET(bp->b_flags, B_BUSY)) {
- FSDBG(524, bp, waitfor, passone, bp->b_flags);
- if (waitfor != MNT_WAIT || passone)
- continue;
- SET(bp->b_flags, B_WANTED);
- error = tsleep((caddr_t)bp, slpflag | (PRIBIO + 1),
- "nfsfsync", slptimeo);
- splx(s);
- if (error) {
- if (nfs_sigintr(nmp, (struct nfsreq *)0, p)) {
- error = EINTR;
- goto done;
- }
- if (slpflag == PCATCH) {
- slpflag = 0;
- slptimeo = 2 * hz;
- }
- }
- goto loop;
- }
- if (!ISSET(bp->b_flags, B_DELWRI))
- panic("nfs_fsync: not dirty");
- FSDBG(525, bp, passone, commit, bp->b_flags);
- if ((passone || !commit) && ISSET(bp->b_flags, B_NEEDCOMMIT))
- continue;
- bremfree(bp);
- if (passone || !commit)
- SET(bp->b_flags, B_BUSY|B_ASYNC);
- else
- SET(bp->b_flags,
- B_BUSY|B_ASYNC|B_WRITEINPROG|B_NEEDCOMMIT);
- splx(s);
- VOP_BWRITE(bp);
- goto loop;
- }
- splx(s);
- if (passone) {
- passone = 0;
- goto again;
- }
- if (waitfor == MNT_WAIT) {
- while (vp->v_numoutput) {
- vp->v_flag |= VBWAIT;
- error = tsleep((caddr_t)&vp->v_numoutput,
- slpflag | (PRIBIO + 1), "nfsfsync", slptimeo);
- if (error) {
- if (nfs_sigintr(nmp, (struct nfsreq *)0, p)) {
- error = EINTR;
- goto done;
- }
- if (slpflag == PCATCH) {
- slpflag = 0;
- slptimeo = 2 * hz;
- }
- }
- }
- if (vp->v_dirtyblkhd.lh_first && commit) {
- goto loop;
- }
- }
- FSDBG(526, np->n_flag, np->n_error, 0, 0);
- if (np->n_flag & NWRITEERR) {
- error = np->n_error;
- np->n_flag &= ~NWRITEERR;
- }
-done:
- FSDBG_BOT(517, vp, np, error, 0);
- if (bvec != NULL && bvec != bvec_on_stack)
- _FREE(bvec, M_TEMP);
+nfsmout:
+ nfsm_chain_cleanup(&nmrep);
return (error);
}
/*
- * Return POSIX pathconf information applicable to nfs.
- *
- * The NFS V2 protocol doesn't support this, so just return EINVAL
- * for V2.
+ * Look up a file name and optionally either update the file handle or
+ * allocate an nfsnode, depending on the value of npp.
+ * npp == NULL --> just do the lookup
+ * *npp == NULL --> allocate a new nfsnode and make sure attributes are
+ * handled too
+ * *npp != NULL --> update the file handle in the vnode
*/
-/* ARGSUSED */
-static int
-nfs_pathconf(ap)
- struct vop_pathconf_args /* {
- struct vnode *a_vp;
- int a_name;
- int *a_retval;
- } */ *ap;
+int
+nfs_lookitup(
+ nfsnode_t dnp,
+ char *name,
+ int namelen,
+ vfs_context_t ctx,
+ nfsnode_t *npp)
{
+ int error = 0;
+ nfsnode_t np, newnp = NULL;
+ u_int64_t xid;
+ fhandle_t fh;
+ struct nfsmount *nmp;
+ struct nfs_vattr nvattr;
+ struct nfsreq rq, *req = &rq;
+
+ nmp = NFSTONMP(dnp);
+ if (!nmp)
+ return (ENXIO);
+
+ if (NFS_BITMAP_ISSET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_MAXNAME) &&
+ (namelen > (long)nmp->nm_fsattr.nfsa_maxname))
+ return (ENAMETOOLONG);
+
+ /* check for lookup of "." */
+ if ((name[0] == '.') && (namelen == 1)) {
+ /* skip lookup, we know who we are */
+ fh.fh_len = 0;
+ newnp = dnp;
+ goto nfsmout;
+ }
- return (EINVAL);
+ error = nmp->nm_funcs->nf_lookup_rpc_async(dnp, name, namelen, ctx, &req);
+ nfsmout_if(error);
+ error = nmp->nm_funcs->nf_lookup_rpc_async_finish(dnp, ctx, req, &xid, &fh, &nvattr);
+ nfsmout_if(!npp || error);
+
+ if (*npp) {
+ np = *npp;
+ if (fh.fh_len != np->n_fhsize) {
+ u_char *oldbuf = (np->n_fhsize > NFS_SMALLFH) ? np->n_fhp : NULL;
+ if (fh.fh_len > NFS_SMALLFH) {
+ MALLOC_ZONE(np->n_fhp, u_char *, fh.fh_len, M_NFSBIGFH, M_WAITOK);
+ if (!np->n_fhp) {
+ np->n_fhp = oldbuf;
+ error = ENOMEM;
+ goto nfsmout;
+ }
+ } else {
+ np->n_fhp = &np->n_fh[0];
+ }
+ if (oldbuf)
+ FREE_ZONE(oldbuf, np->n_fhsize, M_NFSBIGFH);
+ }
+ bcopy(fh.fh_data, np->n_fhp, fh.fh_len);
+ np->n_fhsize = fh.fh_len;
+ error = nfs_loadattrcache(np, &nvattr, &xid, 0);
+ nfsmout_if(error);
+ newnp = np;
+ } else if (NFS_CMPFH(dnp, fh.fh_data, fh.fh_len)) {
+ if (dnp->n_xid <= xid)
+ error = nfs_loadattrcache(dnp, &nvattr, &xid, 0);
+ nfsmout_if(error);
+ newnp = dnp;
+ } else {
+ struct componentname cn, *cnp = &cn;
+ bzero(cnp, sizeof(*cnp));
+ cnp->cn_nameptr = name;
+ cnp->cn_namelen = namelen;
+ error = nfs_nget(NFSTOMP(dnp), dnp, cnp, fh.fh_data, fh.fh_len,
+ &nvattr, &xid, NG_MAKEENTRY, &np);
+ nfsmout_if(error);
+ newnp = np;
+ }
+
+nfsmout:
+ if (npp && !*npp && !error)
+ *npp = newnp;
+ return (error);
}
/*
- * NFS advisory byte-level locks.
- * Currently unsupported.
+ * set up and initialize a "._" file lookup structure used for
+ * performing async lookups.
*/
-static int
-nfs_advlock(ap)
- struct vop_advlock_args /* {
- struct vnode *a_vp;
- caddr_t a_id;
- int a_op;
- struct flock *a_fl;
- int a_flags;
- } */ *ap;
+void
+nfs_dulookup_init(struct nfs_dulookup *dulp, nfsnode_t dnp, const char *name, int namelen)
{
-#ifdef __FreeBSD__
- register struct nfsnode *np = VTONFS(ap->a_vp);
-
- /*
- * The following kludge is to allow diskless support to work
- * until a real NFS lockd is implemented. Basically, just pretend
- * that this is a local lock.
- */
- return (lf_advlock(ap, &(np->n_lockf), np->n_size));
-#else
-#if DIAGNOSTIC
- printf("nfs_advlock: pid %d comm %s\n", current_proc()->p_pid, current_proc()->p_comm);
-#endif
- return (EOPNOTSUPP);
-#endif
+ int error, du_namelen;
+ vnode_t du_vp;
+
+ /* check for ._ file in name cache */
+ dulp->du_flags = 0;
+ bzero(&dulp->du_cn, sizeof(dulp->du_cn));
+ du_namelen = namelen + 2;
+ if ((namelen >= 2) && (name[0] == '.') && (name[1] == '_'))
+ return;
+ if (du_namelen >= (int)sizeof(dulp->du_smallname))
+ MALLOC(dulp->du_cn.cn_nameptr, char *, du_namelen + 1, M_TEMP, M_WAITOK);
+ else
+ dulp->du_cn.cn_nameptr = dulp->du_smallname;
+ if (!dulp->du_cn.cn_nameptr)
+ return;
+ dulp->du_cn.cn_namelen = du_namelen;
+ snprintf(dulp->du_cn.cn_nameptr, du_namelen + 1, "._%s", name);
+ dulp->du_cn.cn_nameptr[du_namelen] = '\0';
+
+ error = cache_lookup(NFSTOV(dnp), &du_vp, &dulp->du_cn);
+ if (error == -1)
+ vnode_put(du_vp);
+ else if (!error)
+ dulp->du_flags |= NFS_DULOOKUP_DOIT;
+ else if (dulp->du_cn.cn_nameptr != dulp->du_smallname)
+ FREE(dulp->du_cn.cn_nameptr, M_TEMP);
}
/*
- * Print out the contents of an nfsnode.
+ * start an async "._" file lookup request
*/
-static int
-nfs_print(ap)
- struct vop_print_args /* {
- struct vnode *a_vp;
- } */ *ap;
+void
+nfs_dulookup_start(struct nfs_dulookup *dulp, nfsnode_t dnp, vfs_context_t ctx)
{
- register struct vnode *vp = ap->a_vp;
- register struct nfsnode *np = VTONFS(vp);
-
- printf("tag VT_NFS, fileid %ld fsid 0x%lx",
- np->n_vattr.va_fileid, np->n_vattr.va_fsid);
- if (vp->v_type == VFIFO)
- fifo_printinfo(vp);
- printf("\n");
- return (0);
+ struct nfsmount *nmp = NFSTONMP(dnp);
+ struct nfsreq *req = &dulp->du_req;
+
+ if (!nmp || !(dulp->du_flags & NFS_DULOOKUP_DOIT))
+ return;
+ if (!nmp->nm_funcs->nf_lookup_rpc_async(dnp, dulp->du_cn.cn_nameptr,
+ dulp->du_cn.cn_namelen, ctx, &req))
+ dulp->du_flags |= NFS_DULOOKUP_INPROG;
}
/*
- * NFS directory offset lookup.
- * Currently unsupported.
+ * finish an async "._" file lookup request and clean up the structure
*/
-static int
-nfs_blkatoff(ap)
- struct vop_blkatoff_args /* {
- struct vnode *a_vp;
- off_t a_offset;
- char **a_res;
- struct buf **a_bpp;
- } */ *ap;
+void
+nfs_dulookup_finish(struct nfs_dulookup *dulp, nfsnode_t dnp, vfs_context_t ctx)
{
+ struct nfsmount *nmp = NFSTONMP(dnp);
+ int error;
+ nfsnode_t du_np;
+ u_int64_t xid;
+ fhandle_t fh;
+ struct nfs_vattr nvattr;
-#if DIAGNOSTIC
- printf("nfs_blkatoff: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
+ if (!nmp || !(dulp->du_flags & NFS_DULOOKUP_INPROG))
+ goto out;
+
+ error = nmp->nm_funcs->nf_lookup_rpc_async_finish(dnp, ctx, &dulp->du_req, &xid, &fh, &nvattr);
+ dulp->du_flags &= ~NFS_DULOOKUP_INPROG;
+ if (error == ENOENT) {
+ /* add a negative entry in the name cache */
+ cache_enter(NFSTOV(dnp), NULL, &dulp->du_cn);
+ dnp->n_flag |= NNEGNCENTRIES;
+ } else if (!error) {
+ error = nfs_nget(NFSTOMP(dnp), dnp, &dulp->du_cn, fh.fh_data, fh.fh_len,
+ &nvattr, &xid, NG_MAKEENTRY, &du_np);
+ if (!error) {
+ nfs_unlock(du_np);
+ vnode_put(NFSTOV(du_np));
+ }
+ }
+out:
+ if (dulp->du_flags & NFS_DULOOKUP_INPROG)
+ nfs_request_async_cancel(&dulp->du_req);
+ if (dulp->du_cn.cn_nameptr && (dulp->du_cn.cn_nameptr != dulp->du_smallname))
+ FREE(dulp->du_cn.cn_nameptr, M_TEMP);
}
+
/*
- * NFS flat namespace allocation.
- * Currently unsupported.
+ * NFS Version 3 commit RPC
*/
-static int
-nfs_valloc(ap)
- struct vop_valloc_args /* {
- struct vnode *a_pvp;
- int a_mode;
- struct ucred *a_cred;
- struct vnode **a_vpp;
- } */ *ap;
+int
+nfs3_commit_rpc(
+ nfsnode_t np,
+ u_int64_t offset,
+ u_int64_t count,
+ kauth_cred_t cred)
{
+ struct nfsmount *nmp;
+ int error = 0, lockerror, status, wccpostattr = 0, nfsvers;
+ struct timespec premtime = { 0, 0 };
+ u_int64_t xid, wverf;
+ uint32_t count32;
+ struct nfsm_chain nmreq, nmrep;
+
+ nmp = NFSTONMP(np);
+ FSDBG(521, np, offset, count, nmp ? nmp->nm_state : 0);
+ if (!nmp)
+ return (ENXIO);
+ if (!(nmp->nm_state & NFSSTA_HASWRITEVERF))
+ return (0);
+ nfsvers = nmp->nm_vers;
- return (EOPNOTSUPP);
+ if (count > UINT32_MAX)
+ count32 = 0;
+ else
+ count32 = count;
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ nfsm_chain_build_alloc_init(error, &nmreq, NFSX_FH(NFS_VER3));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, np->n_fhp, np->n_fhsize);
+ nfsm_chain_add_64(error, &nmreq, offset);
+ nfsm_chain_add_32(error, &nmreq, count32);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request2(np, NULL, &nmreq, NFSPROC_COMMIT,
+ current_thread(), cred, 0, &nmrep, &xid, &status);
+ if ((lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ /* can we do anything useful with the wcc info? */
+ nfsm_chain_get_wcc_data(error, &nmrep, np, &premtime, &wccpostattr, &xid);
+ if (!lockerror)
+ nfs_unlock(np);
+ if (!error)
+ error = status;
+ nfsm_chain_get_64(error, &nmrep, wverf);
+ nfsmout_if(error);
+ lck_mtx_lock(&nmp->nm_lock);
+ if (nmp->nm_verf != wverf) {
+ nmp->nm_verf = wverf;
+ error = NFSERR_STALEWRITEVERF;
+ }
+ lck_mtx_unlock(&nmp->nm_lock);
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+ return (error);
}
-/*
- * NFS flat namespace free.
- * Currently unsupported.
- */
+
static int
-nfs_vfree(ap)
- struct vop_vfree_args /* {
- struct vnode *a_pvp;
- ino_t a_ino;
- int a_mode;
- } */ *ap;
+nfs_vnop_blockmap(
+ __unused struct vnop_blockmap_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ off_t a_foffset;
+ size_t a_size;
+ daddr64_t *a_bpn;
+ size_t *a_run;
+ void *a_poff;
+ int a_flags;
+ } */ *ap)
{
-
-#if DIAGNOSTIC
- printf("nfs_vfree: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
+ return (ENOTSUP);
}
/*
- * NFS file truncation.
+ * Mmap a file
+ *
+ * NB Currently unsupported.
*/
+/*ARGSUSED*/
static int
-nfs_truncate(ap)
- struct vop_truncate_args /* {
- struct vnode *a_vp;
- off_t a_length;
- int a_flags;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+nfs_vnop_mmap(
+ __unused struct vnop_mmap_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_fflags;
+ vfs_context_t a_context;
+ } */ *ap)
{
-
- /* Use nfs_setattr */
-#if DIAGNOSTIC
- printf("nfs_truncate: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
+ return (EINVAL);
}
/*
- * NFS update.
+ * fsync vnode op. Just call nfs_flush().
*/
+/* ARGSUSED */
static int
-nfs_update(ap)
- struct vop_update_args /* {
- struct vnode *a_vp;
- struct timeval *a_ta;
- struct timeval *a_tm;
+nfs_vnop_fsync(
+ struct vnop_fsync_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
int a_waitfor;
- } */ *ap;
+ vfs_context_t a_context;
+ } */ *ap)
{
-
- /* Use nfs_setattr */
-#if DIAGNOSTIC
- printf("nfs_update: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
+ return (nfs_flush(VTONFS(ap->a_vp), ap->a_waitfor, vfs_context_thread(ap->a_context), 0));
}
-int nfs_aio_threads = 0; /* 1 per nfd (arbitrary) */
-struct slock nfs_aio_slock;
-TAILQ_HEAD(bqueues, buf) nfs_aio_bufq;
-int nfs_aio_bufq_len = 0; /* diagnostic only */
-void
-nfs_aio_thread()
-{ /* see comment below in nfs_bwrite() for some rationale */
- struct buf *bp;
- boolean_t funnel_state;
-
- funnel_state = thread_funnel_set(kernel_flock, TRUE);
- for(;;) {
- simple_lock(&nfs_aio_slock);
- if ((bp = nfs_aio_bufq.tqh_first)) {
- TAILQ_REMOVE(&nfs_aio_bufq, bp, b_freelist);
- nfs_aio_bufq_len--;
- simple_unlock(&nfs_aio_slock);
- nfs_writebp(bp, 1);
- } else { /* nothing to do - goodnight */
- assert_wait(&nfs_aio_bufq, THREAD_UNINT);
- simple_unlock(&nfs_aio_slock);
- (void)tsleep((caddr_t)0, PRIBIO+1, "nfs_aio_bufq", 0);
- }
- }
- (void) thread_funnel_set(kernel_flock, FALSE);
+/*
+ * Do an NFS pathconf RPC.
+ */
+int
+nfs3_pathconf_rpc(
+ nfsnode_t np,
+ struct nfs_fsattr *nfsap,
+ vfs_context_t ctx)
+{
+ u_int64_t xid;
+ int error = 0, lockerror, status, nfsvers;
+ struct nfsm_chain nmreq, nmrep;
+ struct nfsmount *nmp = NFSTONMP(np);
+ uint32_t val = 0;
+
+ if (!nmp)
+ return (ENXIO);
+ nfsvers = nmp->nm_vers;
+
+ nfsm_chain_null(&nmreq);
+ nfsm_chain_null(&nmrep);
+
+ /* fetch pathconf info from server */
+ nfsm_chain_build_alloc_init(error, &nmreq, NFSX_FH(NFS_VER3));
+ nfsm_chain_add_fh(error, &nmreq, nfsvers, np->n_fhp, np->n_fhsize);
+ nfsm_chain_build_done(error, &nmreq);
+ nfsmout_if(error);
+ error = nfs_request(np, NULL, &nmreq, NFSPROC_PATHCONF, ctx,
+ &nmrep, &xid, &status);
+ if ((lockerror = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ error = lockerror;
+ nfsm_chain_postop_attr_update(error, &nmrep, np, &xid);
+ if (!lockerror)
+ nfs_unlock(np);
+ if (!error)
+ error = status;
+ nfsm_chain_get_32(error, &nmrep, nfsap->nfsa_maxlink);
+ nfsm_chain_get_32(error, &nmrep, nfsap->nfsa_maxname);
+ nfsm_chain_get_32(error, &nmrep, val);
+ if (val)
+ nfsap->nfsa_flags |= NFS_FSFLAG_NO_TRUNC;
+ nfsm_chain_get_32(error, &nmrep, val);
+ if (val)
+ nfsap->nfsa_flags |= NFS_FSFLAG_CHOWN_RESTRICTED;
+ nfsm_chain_get_32(error, &nmrep, val);
+ if (val)
+ nfsap->nfsa_flags |= NFS_FSFLAG_CASE_INSENSITIVE;
+ nfsm_chain_get_32(error, &nmrep, val);
+ if (val)
+ nfsap->nfsa_flags |= NFS_FSFLAG_CASE_PRESERVING;
+ NFS_BITMAP_SET(nfsap->nfsa_bitmap, NFS_FATTR_MAXLINK);
+ NFS_BITMAP_SET(nfsap->nfsa_bitmap, NFS_FATTR_MAXNAME);
+ NFS_BITMAP_SET(nfsap->nfsa_bitmap, NFS_FATTR_NO_TRUNC);
+ NFS_BITMAP_SET(nfsap->nfsa_bitmap, NFS_FATTR_CHOWN_RESTRICTED);
+ NFS_BITMAP_SET(nfsap->nfsa_bitmap, NFS_FATTR_CASE_INSENSITIVE);
+ NFS_BITMAP_SET(nfsap->nfsa_bitmap, NFS_FATTR_CASE_PRESERVING);
+nfsmout:
+ nfsm_chain_cleanup(&nmreq);
+ nfsm_chain_cleanup(&nmrep);
+ return (error);
}
-
+/* save pathconf info for NFSv3 mount */
void
-nfs_aio_thread_init()
+nfs3_pathconf_cache(struct nfsmount *nmp, struct nfs_fsattr *nfsap)
{
- if (nfs_aio_threads++ == 0) {
- simple_lock_init(&nfs_aio_slock);
- TAILQ_INIT(&nfs_aio_bufq);
- }
- kernel_thread(kernel_task, nfs_aio_thread);
+ nmp->nm_fsattr.nfsa_maxlink = nfsap->nfsa_maxlink;
+ nmp->nm_fsattr.nfsa_maxname = nfsap->nfsa_maxname;
+ nmp->nm_fsattr.nfsa_flags |= nfsap->nfsa_flags & NFS_FSFLAG_NO_TRUNC;
+ nmp->nm_fsattr.nfsa_flags |= nfsap->nfsa_flags & NFS_FSFLAG_CHOWN_RESTRICTED;
+ nmp->nm_fsattr.nfsa_flags |= nfsap->nfsa_flags & NFS_FSFLAG_CASE_INSENSITIVE;
+ nmp->nm_fsattr.nfsa_flags |= nfsap->nfsa_flags & NFS_FSFLAG_CASE_PRESERVING;
+ NFS_BITMAP_SET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_MAXLINK);
+ NFS_BITMAP_SET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_MAXNAME);
+ NFS_BITMAP_SET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_NO_TRUNC);
+ NFS_BITMAP_SET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_CHOWN_RESTRICTED);
+ NFS_BITMAP_SET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_CASE_INSENSITIVE);
+ NFS_BITMAP_SET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_CASE_PRESERVING);
+ nmp->nm_state |= NFSSTA_GOTPATHCONF;
}
-
/*
- * Just call nfs_writebp() with the force argument set to 1.
+ * Return POSIX pathconf information applicable to nfs.
+ *
+ * The NFS V2 protocol doesn't support this, so just return EINVAL
+ * for V2.
*/
+/* ARGSUSED */
static int
-nfs_bwrite(ap)
- struct vop_bwrite_args /* {
- struct vnode *a_bp;
- } */ *ap;
+nfs_vnop_pathconf(
+ struct vnop_pathconf_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_name;
+ register_t *a_retval;
+ vfs_context_t a_context;
+ } */ *ap)
{
- extern void wakeup_one(caddr_t chan);
-
- /*
- * nfs_writebp will issue a synchronous rpc to if B_ASYNC then
- * to avoid distributed deadlocks we handoff the write to the
- * nfs_aio threads. Doing so allows us to complete the
- * current request, rather than blocking on a server which may
- * be ourself (or blocked on ourself).
- *
- * Note the loopback deadlocks happened when the thread
- * invoking us was nfsd, and also when it was the pagedaemon.
- *
- * This solution has one known problem. If *ALL* buffers get
- * on the nfs_aio queue then no forward progress can be made
- * until one of those writes complete. And if the current
- * nfs_aio writes-in-progress block due to a non-responsive server we
- * are in a deadlock circle. Probably the cure is to limit the
- * async write concurrency in getnewbuf as in FreeBSD 3.2.
- */
- if (nfs_aio_threads && ISSET(ap->a_bp->b_flags, B_ASYNC)) {
- simple_lock(&nfs_aio_slock);
- nfs_aio_bufq_len++;
- TAILQ_INSERT_TAIL(&nfs_aio_bufq, ap->a_bp, b_freelist);
- simple_unlock(&nfs_aio_slock);
- wakeup_one((caddr_t)&nfs_aio_bufq);
- return (0);
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ struct nfsmount *nmp;
+ struct nfs_fsattr nfsa, *nfsap;
+ int error = 0;
+ uint64_t maxFileSize;
+ uint nbits;
+
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+
+ switch (ap->a_name) {
+ case _PC_LINK_MAX:
+ case _PC_NAME_MAX:
+ case _PC_CHOWN_RESTRICTED:
+ case _PC_NO_TRUNC:
+ case _PC_CASE_SENSITIVE:
+ case _PC_CASE_PRESERVING:
+ break;
+ case _PC_FILESIZEBITS:
+ if (nmp->nm_vers == NFS_VER2) {
+ *ap->a_retval = 32;
+ return (0);
+ }
+ break;
+ default:
+ /* don't bother contacting the server if we know the answer */
+ return (EINVAL);
}
- return (nfs_writebp(ap->a_bp, 1));
-}
-/*
- * This is a clone of vn_bwrite(), except that B_WRITEINPROG isn't set unless
- * the force flag is one and it also handles the B_NEEDCOMMIT flag.
- */
-int
-nfs_writebp(bp, force)
- register struct buf *bp;
- int force;
-{
- int s;
- register int oldflags = bp->b_flags, retv = 1;
- off_t off;
- upl_t upl;
- kern_return_t kret;
- struct vnode *vp = bp->b_vp;
- upl_page_info_t *pl;
-
- if(!ISSET(bp->b_flags, B_BUSY))
- panic("nfs_writebp: buffer is not busy???");
-
- s = splbio();
- CLR(bp->b_flags, (B_READ|B_DONE|B_ERROR|B_DELWRI));
- if (ISSET(oldflags, B_DELWRI)) {
- extern int nbdwrite;
- nbdwrite--;
- wakeup((caddr_t)&nbdwrite);
- }
-
- if (ISSET(oldflags, (B_ASYNC|B_DELWRI))) {
- reassignbuf(bp, vp);
- }
-
- vp->v_numoutput++;
- current_proc()->p_stats->p_ru.ru_oublock++;
- splx(s);
-
- /*
- * Since the B_BUSY flag is set, we need to lock the page before doing
- * nfs_commit. Otherwise we may block and get a busy incore pages
- * during a vm pageout. Move the existing code up before the commit.
- */
- if (!ISSET(bp->b_flags, B_META) && UBCISVALID(vp) &&
- !ISSET(bp->b_flags, B_PAGELIST)) {
- kret = ubc_create_upl(vp, ubc_blktooff(vp, bp->b_lblkno),
- bp->b_bufsize, &upl, &pl, UPL_PRECIOUS);
- if (kret != KERN_SUCCESS)
- panic("nfs_writebp: ubc_create_upl %d", kret);
-#ifdef UBC_DEBUG
- upl_ubc_alias_set(upl, current_act(), 2);
-#endif /* UBC_DEBUG */
- s = splbio();
- bp->b_pagelist = upl;
- SET(bp->b_flags, B_PAGELIST);
- splx(s);
-
- kret = ubc_upl_map(upl, (vm_address_t *)&(bp->b_data));
- if (kret != KERN_SUCCESS)
- panic("nfs_writebp: ubc_upl_map %d", kret);
- if(bp->b_data == 0)
- panic("nfs_writebp: ubc_upl_map mapped 0");
- if (!upl_page_present(pl, 0)) /* even more paranoia */
- panic("nfs_writebp: nopage");
- }
+ if (nmp->nm_vers == NFS_VER2)
+ return (EINVAL);
- /*
- * If B_NEEDCOMMIT is set, a commit rpc may do the trick. If not
- * an actual write will have to be scheduled via. VOP_STRATEGY().
- * If B_WRITEINPROG is already set, then push it with a write anyhow.
- */
- if ((oldflags & (B_NEEDCOMMIT | B_WRITEINPROG)) == B_NEEDCOMMIT) {
- off = ((u_quad_t)bp->b_blkno) * DEV_BSIZE + bp->b_dirtyoff;
- SET(bp->b_flags, B_WRITEINPROG);
- retv = nfs_commit(vp, off, bp->b_dirtyend-bp->b_dirtyoff,
- bp->b_wcred, bp->b_proc);
- CLR(bp->b_flags, B_WRITEINPROG);
- if (!retv) {
- bp->b_dirtyoff = bp->b_dirtyend = 0;
- CLR(bp->b_flags, B_NEEDCOMMIT);
- biodone(bp); /* on B_ASYNC will brelse the buffer */
-
- } else if (retv == NFSERR_STALEWRITEVERF)
- nfs_clearcommit(vp->v_mount);
- }
- if (retv) {
- if (force)
- SET(bp->b_flags, B_WRITEINPROG);
- VOP_STRATEGY(bp);
- }
-
- if( (oldflags & B_ASYNC) == 0) {
- int rtval = biowait(bp);
-
- if (oldflags & B_DELWRI) {
- s = splbio();
- reassignbuf(bp, vp);
- splx(s);
+ lck_mtx_lock(&nmp->nm_lock);
+ if (nmp->nm_vers == NFS_VER3) {
+ if (!(nmp->nm_state & NFSSTA_GOTPATHCONF)) {
+ /* no pathconf info cached */
+ lck_mtx_unlock(&nmp->nm_lock);
+ NFS_CLEAR_ATTRIBUTES(nfsa.nfsa_bitmap);
+ error = nfs3_pathconf_rpc(np, &nfsa, ap->a_context);
+ if (error)
+ return (error);
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ lck_mtx_lock(&nmp->nm_lock);
+ if (nmp->nm_fsattr.nfsa_flags & NFS_FSFLAG_HOMOGENEOUS) {
+ /* all files have the same pathconf info, */
+ /* so cache a copy of the results */
+ nfs3_pathconf_cache(nmp, &nfsa);
+ }
+ nfsap = &nfsa;
+ } else {
+ nfsap = &nmp->nm_fsattr;
}
- brelse(bp);
- return (rtval);
- }
-
- return (0);
-}
-
-/*
- * nfs special file access vnode op.
- * Essentially just get vattr and then imitate iaccess() since the device is
- * local to the client.
- */
-static int
-nfsspec_access(ap)
- struct vop_access_args /* {
- struct vnode *a_vp;
- int a_mode;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
-{
- register struct vattr *vap;
- register gid_t *gp;
- register struct ucred *cred = ap->a_cred;
- struct vnode *vp = ap->a_vp;
- mode_t mode = ap->a_mode;
- struct vattr vattr;
- register int i;
- int error;
+ } else if (!(nmp->nm_fsattr.nfsa_flags & NFS_FSFLAG_HOMOGENEOUS)) {
+ /* no pathconf info cached */
+ lck_mtx_unlock(&nmp->nm_lock);
+ NFS_CLEAR_ATTRIBUTES(nfsa.nfsa_bitmap);
+ error = nfs4_pathconf_rpc(np, &nfsa, ap->a_context);
+ if (error)
+ return (error);
+ nmp = VTONMP(vp);
+ if (!nmp)
+ return (ENXIO);
+ lck_mtx_lock(&nmp->nm_lock);
+ nfsap = &nfsa;
+ } else {
+ nfsap = &nmp->nm_fsattr;
+ }
- /*
- * Disallow write attempts on filesystems mounted read-only;
- * unless the file is a socket, fifo, or a block or character
- * device resident on the filesystem.
- */
- if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
- switch (vp->v_type) {
- case VREG: case VDIR: case VLNK:
- return (EROFS);
+ switch (ap->a_name) {
+ case _PC_LINK_MAX:
+ if (NFS_BITMAP_ISSET(nfsap->nfsa_bitmap, NFS_FATTR_MAXLINK))
+ *ap->a_retval = nfsap->nfsa_maxlink;
+ else if ((nmp->nm_vers == NFS_VER4) && NFS_BITMAP_ISSET(np->n_vattr.nva_bitmap, NFS_FATTR_MAXLINK))
+ *ap->a_retval = np->n_vattr.nva_maxlink;
+ else
+ error = EINVAL;
+ break;
+ case _PC_NAME_MAX:
+ if (NFS_BITMAP_ISSET(nfsap->nfsa_bitmap, NFS_FATTR_MAXNAME))
+ *ap->a_retval = nfsap->nfsa_maxname;
+ else
+ error = EINVAL;
+ break;
+ case _PC_CHOWN_RESTRICTED:
+ if (NFS_BITMAP_ISSET(nfsap->nfsa_bitmap, NFS_FATTR_CHOWN_RESTRICTED))
+ *ap->a_retval = (nmp->nm_fsattr.nfsa_flags & NFS_FSFLAG_CHOWN_RESTRICTED) ? 200112 /* _POSIX_CHOWN_RESTRICTED */ : 0;
+ else
+ error = EINVAL;
+ break;
+ case _PC_NO_TRUNC:
+ if (NFS_BITMAP_ISSET(nfsap->nfsa_bitmap, NFS_FATTR_NO_TRUNC))
+ *ap->a_retval = (nmp->nm_fsattr.nfsa_flags & NFS_FSFLAG_NO_TRUNC) ? 200112 /* _POSIX_NO_TRUNC */ : 0;
+ else
+ error = EINVAL;
+ break;
+ case _PC_CASE_SENSITIVE:
+ if (NFS_BITMAP_ISSET(nfsap->nfsa_bitmap, NFS_FATTR_CASE_INSENSITIVE))
+ *ap->a_retval = (nmp->nm_fsattr.nfsa_flags & NFS_FSFLAG_CASE_INSENSITIVE) ? 0 : 1;
+ else
+ error = EINVAL;
+ break;
+ case _PC_CASE_PRESERVING:
+ if (NFS_BITMAP_ISSET(nfsap->nfsa_bitmap, NFS_FATTR_CASE_PRESERVING))
+ *ap->a_retval = (nmp->nm_fsattr.nfsa_flags & NFS_FSFLAG_CASE_PRESERVING) ? 1 : 0;
+ else
+ error = EINVAL;
+ break;
+ case _PC_FILESIZEBITS:
+ if (!NFS_BITMAP_ISSET(nmp->nm_fsattr.nfsa_bitmap, NFS_FATTR_MAXFILESIZE)) {
+ *ap->a_retval = 64;
+ error = 0;
+ break;
}
+ maxFileSize = nmp->nm_fsattr.nfsa_maxfilesize;
+ nbits = 1;
+ if (maxFileSize & 0xffffffff00000000ULL) {
+ nbits += 32;
+ maxFileSize >>= 32;
+ }
+ if (maxFileSize & 0xffff0000) {
+ nbits += 16;
+ maxFileSize >>= 16;
+ }
+ if (maxFileSize & 0xff00) {
+ nbits += 8;
+ maxFileSize >>= 8;
+ }
+ if (maxFileSize & 0xf0) {
+ nbits += 4;
+ maxFileSize >>= 4;
+ }
+ if (maxFileSize & 0xc) {
+ nbits += 2;
+ maxFileSize >>= 2;
+ }
+ if (maxFileSize & 0x2) {
+ nbits += 1;
+ }
+ *ap->a_retval = nbits;
+ break;
+ default:
+ error = EINVAL;
}
- /*
- * If you're the super-user,
- * you always get access.
- */
- if (cred->cr_uid == 0)
- return (0);
- vap = &vattr;
- error = VOP_GETATTR(vp, vap, cred, ap->a_p);
- if (error)
- return (error);
- /*
- * Access check is based on only one of owner, group, public.
- * If not owner, then check group. If not a member of the
- * group, then check public access.
- */
- if (cred->cr_uid != vap->va_uid) {
- mode >>= 3;
- gp = cred->cr_groups;
- for (i = 0; i < cred->cr_ngroups; i++, gp++)
- if (vap->va_gid == *gp)
- goto found;
- mode >>= 3;
-found:
- ;
- }
- error = (vap->va_mode & mode) == mode ? 0 : EACCES;
+
+ lck_mtx_unlock(&nmp->nm_lock);
+
return (error);
}
* Read wrapper for special devices.
*/
static int
-nfsspec_read(ap)
- struct vop_read_args /* {
- struct vnode *a_vp;
+nfsspec_vnop_read(
+ struct vnop_read_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
- } */ *ap;
+ int a_ioflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct nfsnode *np = VTONFS(ap->a_vp);
+ nfsnode_t np = VTONFS(ap->a_vp);
+ struct timeval now;
+ int error;
/*
* Set access flag.
*/
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
np->n_flag |= NACC;
- np->n_atim.tv_sec = time.tv_sec;
- np->n_atim.tv_nsec = time.tv_usec * 1000;
- return (VOCALL(spec_vnodeop_p, VOFFSET(vop_read), ap));
+ microtime(&now);
+ np->n_atim.tv_sec = now.tv_sec;
+ np->n_atim.tv_nsec = now.tv_usec * 1000;
+ nfs_unlock(np);
+ return (VOCALL(spec_vnodeop_p, VOFFSET(vnop_read), ap));
}
/*
* Write wrapper for special devices.
*/
static int
-nfsspec_write(ap)
- struct vop_write_args /* {
- struct vnode *a_vp;
+nfsspec_vnop_write(
+ struct vnop_write_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
- } */ *ap;
+ int a_ioflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct nfsnode *np = VTONFS(ap->a_vp);
+ nfsnode_t np = VTONFS(ap->a_vp);
+ struct timeval now;
+ int error;
/*
* Set update flag.
*/
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
np->n_flag |= NUPD;
- np->n_mtim.tv_sec = time.tv_sec;
- np->n_mtim.tv_nsec = time.tv_usec * 1000;
- return (VOCALL(spec_vnodeop_p, VOFFSET(vop_write), ap));
+ microtime(&now);
+ np->n_mtim.tv_sec = now.tv_sec;
+ np->n_mtim.tv_nsec = now.tv_usec * 1000;
+ nfs_unlock(np);
+ return (VOCALL(spec_vnodeop_p, VOFFSET(vnop_write), ap));
}
/*
* Update the times on the nfsnode then do device close.
*/
static int
-nfsspec_close(ap)
- struct vop_close_args /* {
- struct vnode *a_vp;
- int a_fflag;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+nfsspec_vnop_close(
+ struct vnop_close_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_fflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct nfsnode *np = VTONFS(vp);
- struct vattr vattr;
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ struct vnode_attr vattr;
+ mount_t mp;
+ int error;
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
if (np->n_flag & (NACC | NUPD)) {
np->n_flag |= NCHG;
- if (vp->v_usecount == 1 &&
- (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
- VATTR_NULL(&vattr);
- if (np->n_flag & NACC)
- vattr.va_atime = np->n_atim;
- if (np->n_flag & NUPD)
- vattr.va_mtime = np->n_mtim;
- (void)VOP_SETATTR(vp, &vattr, ap->a_cred, ap->a_p);
+ if (!vnode_isinuse(vp, 1) && (mp = vnode_mount(vp)) && !vfs_isrdonly(mp)) {
+ VATTR_INIT(&vattr);
+ if (np->n_flag & NACC) {
+ vattr.va_access_time = np->n_atim;
+ VATTR_SET_ACTIVE(&vattr, va_access_time);
+ }
+ if (np->n_flag & NUPD) {
+ vattr.va_modify_time = np->n_mtim;
+ VATTR_SET_ACTIVE(&vattr, va_modify_time);
+ }
+ nfs_unlock(np);
+ vnode_setattr(vp, &vattr, ap->a_context);
+ } else {
+ nfs_unlock(np);
}
+ } else {
+ nfs_unlock(np);
}
- return (VOCALL(spec_vnodeop_p, VOFFSET(vop_close), ap));
+ return (VOCALL(spec_vnodeop_p, VOFFSET(vnop_close), ap));
}
+#if FIFO
+extern vnop_t **fifo_vnodeop_p;
+
/*
* Read wrapper for fifos.
*/
static int
-nfsfifo_read(ap)
- struct vop_read_args /* {
- struct vnode *a_vp;
+nfsfifo_vnop_read(
+ struct vnop_read_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
- } */ *ap;
+ int a_ioflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- extern vop_t **fifo_vnodeop_p;
- register struct nfsnode *np = VTONFS(ap->a_vp);
+ nfsnode_t np = VTONFS(ap->a_vp);
+ struct timeval now;
+ int error;
/*
* Set access flag.
*/
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
np->n_flag |= NACC;
- np->n_atim.tv_sec = time.tv_sec;
- np->n_atim.tv_nsec = time.tv_usec * 1000;
- return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_read), ap));
+ microtime(&now);
+ np->n_atim.tv_sec = now.tv_sec;
+ np->n_atim.tv_nsec = now.tv_usec * 1000;
+ nfs_unlock(np);
+ return (VOCALL(fifo_vnodeop_p, VOFFSET(vnop_read), ap));
}
/*
* Write wrapper for fifos.
*/
static int
-nfsfifo_write(ap)
- struct vop_write_args /* {
- struct vnode *a_vp;
+nfsfifo_vnop_write(
+ struct vnop_write_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
- } */ *ap;
+ int a_ioflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- extern vop_t **fifo_vnodeop_p;
- register struct nfsnode *np = VTONFS(ap->a_vp);
+ nfsnode_t np = VTONFS(ap->a_vp);
+ struct timeval now;
+ int error;
/*
* Set update flag.
*/
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
np->n_flag |= NUPD;
- np->n_mtim.tv_sec = time.tv_sec;
- np->n_mtim.tv_nsec = time.tv_usec * 1000;
- return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_write), ap));
+ microtime(&now);
+ np->n_mtim.tv_sec = now.tv_sec;
+ np->n_mtim.tv_nsec = now.tv_usec * 1000;
+ nfs_unlock(np);
+ return (VOCALL(fifo_vnodeop_p, VOFFSET(vnop_write), ap));
}
/*
* Update the times on the nfsnode then do fifo close.
*/
static int
-nfsfifo_close(ap)
- struct vop_close_args /* {
- struct vnode *a_vp;
- int a_fflag;
- struct ucred *a_cred;
- struct proc *a_p;
- } */ *ap;
+nfsfifo_vnop_close(
+ struct vnop_close_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_fflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
- register struct nfsnode *np = VTONFS(vp);
- struct vattr vattr;
- extern vop_t **fifo_vnodeop_p;
+ vnode_t vp = ap->a_vp;
+ nfsnode_t np = VTONFS(vp);
+ struct vnode_attr vattr;
+ struct timeval now;
+ mount_t mp;
+ int error;
+ if ((error = nfs_lock(np, NFS_NODE_LOCK_EXCLUSIVE)))
+ return (error);
if (np->n_flag & (NACC | NUPD)) {
+ microtime(&now);
if (np->n_flag & NACC) {
- np->n_atim.tv_sec = time.tv_sec;
- np->n_atim.tv_nsec = time.tv_usec * 1000;
+ np->n_atim.tv_sec = now.tv_sec;
+ np->n_atim.tv_nsec = now.tv_usec * 1000;
}
if (np->n_flag & NUPD) {
- np->n_mtim.tv_sec = time.tv_sec;
- np->n_mtim.tv_nsec = time.tv_usec * 1000;
+ np->n_mtim.tv_sec = now.tv_sec;
+ np->n_mtim.tv_nsec = now.tv_usec * 1000;
}
np->n_flag |= NCHG;
- if (vp->v_usecount == 1 &&
- (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
- VATTR_NULL(&vattr);
- if (np->n_flag & NACC)
- vattr.va_atime = np->n_atim;
- if (np->n_flag & NUPD)
- vattr.va_mtime = np->n_mtim;
- (void)VOP_SETATTR(vp, &vattr, ap->a_cred, ap->a_p);
+ if (!vnode_isinuse(vp, 1) && (mp = vnode_mount(vp)) && !vfs_isrdonly(mp)) {
+ VATTR_INIT(&vattr);
+ if (np->n_flag & NACC) {
+ vattr.va_access_time = np->n_atim;
+ VATTR_SET_ACTIVE(&vattr, va_access_time);
+ }
+ if (np->n_flag & NUPD) {
+ vattr.va_modify_time = np->n_mtim;
+ VATTR_SET_ACTIVE(&vattr, va_modify_time);
+ }
+ nfs_unlock(np);
+ vnode_setattr(vp, &vattr, ap->a_context);
+ } else {
+ nfs_unlock(np);
}
+ } else {
+ nfs_unlock(np);
}
- return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_close), ap));
+ return (VOCALL(fifo_vnodeop_p, VOFFSET(vnop_close), ap));
}
+#endif /* FIFO */
+/*ARGSUSED*/
static int
-nfs_ioctl(ap)
- struct vop_ioctl_args *ap;
+nfs_vnop_ioctl(
+ __unused struct vnop_ioctl_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ u_long a_command;
+ caddr_t a_data;
+ int a_fflag;
+ vfs_context_t a_context;
+ } */ *ap)
{
/*
return (ENOTTY);
}
+/*ARGSUSED*/
static int
-nfs_select(ap)
- struct vop_select_args *ap;
+nfs_vnop_select(
+ __unused struct vnop_select_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_which;
+ int a_fflags;
+ void *a_wql;
+ vfs_context_t a_context;
+ } */ *ap)
{
/*
return (1);
}
-/* XXX Eliminate use of struct bp here */
/*
- * Vnode op for pagein using getblk_pages
- * derived from nfs_bioread()
- * No read aheads are started from pagein operation
+ * vnode OP for pagein using UPL
+ *
+ * No buffer I/O, just RPCs straight into the mapped pages.
*/
static int
-nfs_pagein(ap)
- struct vop_pagein_args /* {
- struct vnode *a_vp,
- upl_t a_pl,
- vm_offset_t a_pl_offset,
- off_t a_f_offset,
- size_t a_size,
- struct ucred *a_cred,
- int a_flags
- } */ *ap;
+nfs_vnop_pagein(
+ struct vnop_pagein_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ upl_t a_pl;
+ vm_offset_t a_pl_offset;
+ off_t a_f_offset;
+ size_t a_size;
+ int a_flags;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
+ vnode_t vp = ap->a_vp;
upl_t pl = ap->a_pl;
- size_t size= ap->a_size;
+ size_t size = ap->a_size;
off_t f_offset = ap->a_f_offset;
vm_offset_t pl_offset = ap->a_pl_offset;
- int flags = ap->a_flags;
- struct ucred *cred;
- register struct nfsnode *np = VTONFS(vp);
- register int biosize;
- register int iosize;
- register int xsize;
- struct vattr vattr;
- struct proc *p = current_proc();
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ int flags = ap->a_flags;
+ thread_t thd;
+ kauth_cred_t cred;
+ nfsnode_t np = VTONFS(vp);
+ size_t nmrsize, iosize, txsize, rxsize, retsize;
+ off_t txoffset;
+ struct nfsmount *nmp;
int error = 0;
vm_offset_t ioaddr;
struct uio auio;
- struct iovec aiov;
+ struct iovec_32 aiov;
struct uio * uio = &auio;
int nofreeupl = flags & UPL_NOCOMMIT;
+ upl_page_info_t *plinfo;
+#define MAXPAGINGREQS 16 /* max outstanding RPCs for pagein/pageout */
+ struct nfsreq *req[MAXPAGINGREQS];
+ int nextsend, nextwait;
- FSDBG(322, f_offset, size, pl, pl_offset);
+ FSDBG(322, np, f_offset, size, flags);
if (pl == (upl_t)NULL)
panic("nfs_pagein: no upl");
- if (UBCINVALID(vp)) {
- printf("nfs_pagein: invalid vnode 0x%x", (int)vp);
- if (!nofreeupl)
- (void) ubc_upl_abort(pl, NULL);
- return (EPERM);
- }
- UBCINFOCHECK("nfs_pagein", vp);
-
if (size <= 0) {
- printf("nfs_pagein: invalid size %d", size);
+ printf("nfs_pagein: invalid size %ld", size);
if (!nofreeupl)
- (void) ubc_upl_abort(pl, NULL);
+ (void) ubc_upl_abort(pl, 0);
return (EINVAL);
}
- if (f_offset < 0 || f_offset >= np->n_size ||
- (f_offset & PAGE_MASK_64)) {
+ if (f_offset < 0 || f_offset >= (off_t)np->n_size || (f_offset & PAGE_MASK_64)) {
if (!nofreeupl)
- ubc_upl_abort_range(pl, pl_offset, size,
+ ubc_upl_abort_range(pl, pl_offset, size,
UPL_ABORT_ERROR | UPL_ABORT_FREE_ON_EMPTY);
return (EINVAL);
}
+
+ thd = vfs_context_thread(ap->a_context);
cred = ubc_getcred(vp);
- if (cred == NOCRED)
- cred = ap->a_cred;
+ if (!IS_VALID_CRED(cred))
+ cred = vfs_context_ucred(ap->a_context);
auio.uio_offset = f_offset;
+#if 1 /* LP64todo - can't use new segment flags until the drivers are ready */
auio.uio_segflg = UIO_SYSSPACE;
+#else
+ auio.uio_segflg = UIO_SYSSPACE32;
+#endif
auio.uio_rw = UIO_READ;
- auio.uio_procp = NULL;
+ auio.uio_procp = vfs_context_proc(ap->a_context);
- if ((nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_GOTFSINFO)) == NFSMNT_NFSV3)
- (void)nfs_fsinfo(nmp, vp, cred, p);
- biosize = min(vp->v_mount->mnt_stat.f_iosize, size);
-
- if (biosize & PAGE_MASK)
- panic("nfs_pagein(%x): biosize not page aligned", biosize);
+ nmp = VTONMP(vp);
+ if (!nmp) {
+ if (!nofreeupl)
+ ubc_upl_abort_range(pl, pl_offset, size,
+ UPL_ABORT_ERROR | UPL_ABORT_FREE_ON_EMPTY);
+ return (ENXIO);
+ }
+ nmrsize = nmp->nm_rsize;
+ plinfo = ubc_upl_pageinfo(pl);
ubc_upl_map(pl, &ioaddr);
ioaddr += pl_offset;
- xsize = size;
+ txsize = rxsize = size;
+ txoffset = f_offset;
+ bzero(req, sizeof(req));
+ nextsend = nextwait = 0;
do {
- iosize = min(biosize, xsize);
- uio->uio_resid = iosize;
- auio.uio_iov = &aiov;
- auio.uio_iovcnt = 1;
- aiov.iov_len = iosize;
- aiov.iov_base = (caddr_t)ioaddr;
-
- FSDBG(322, uio->uio_offset, uio->uio_resid, ioaddr, xsize);
-#warning our nfs_pagein does not support NQNFS
- /*
- * With UBC we get here only when the file data is not in the VM
- * page cache, so go ahead and read in.
- */
-#ifdef UBC_DEBUG
- upl_ubc_alias_set(pl, current_act(), 2);
-#endif /* UBC_DEBUG */
- nfsstats.pageins++;
-
- error = nfs_readrpc(vp, uio, cred);
-
- if (!error) {
- if (uio->uio_resid) {
- /*
- * If uio_resid > 0, there is a hole in the file
- * and no writes after the hole have been pushed
- * to the server yet... or we're at the EOF
- * Just zero fill the rest of the valid area.
- */
- int zcnt = uio->uio_resid;
- int zoff = iosize - zcnt;
- bzero((char *)ioaddr + zoff, zcnt);
-
- FSDBG(324, uio->uio_offset, zoff, zcnt, ioaddr);
+ /* send requests while we need to and have available slots */
+ while ((txsize > 0) && (req[nextsend] == NULL)) {
+ iosize = MIN(nmrsize, txsize);
+ if ((error = nmp->nm_funcs->nf_read_rpc_async(np, txoffset, iosize, thd, cred, NULL, &req[nextsend]))) {
+ req[nextsend] = NULL;
+ break;
+ }
+ txoffset += iosize;
+ txsize -= iosize;
+ nextsend = (nextsend + 1) % MAXPAGINGREQS;
+ }
+ /* wait while we need to and break out if more requests to send */
+ while ((rxsize > 0) && req[nextwait]) {
+ iosize = retsize = MIN(nmrsize, rxsize);
+ aiov.iov_len = iosize;
+ aiov.iov_base = (uintptr_t)ioaddr;
+ auio.uio_iovs.iov32p = &aiov;
+ auio.uio_iovcnt = 1;
+ uio_uio_resid_set(&auio, iosize);
+ FSDBG(322, uio->uio_offset, uio_uio_resid(uio), ioaddr, rxsize);
+#ifdef UPL_DEBUG
+ upl_ubc_alias_set(pl, current_thread(), 2);
+#endif /* UPL_DEBUG */
+ OSAddAtomic(1, (SInt32*)&nfsstats.pageins);
+ error = nmp->nm_funcs->nf_read_rpc_async_finish(np, req[nextwait], uio, &retsize, NULL);
+ req[nextwait] = NULL;
+ nextwait = (nextwait + 1) % MAXPAGINGREQS;
+ if (error) {
+ FSDBG(322, uio->uio_offset, uio_uio_resid(uio), error, -1);
+ break;
+ }
+ if (retsize < iosize) {
+ /* Just zero fill the rest of the valid area. */
+ // LP64todo - fix this
+ int zcnt = iosize - retsize;
+ bzero((char *)ioaddr + retsize, zcnt);
+ FSDBG(324, uio->uio_offset, retsize, zcnt, ioaddr);
uio->uio_offset += zcnt;
}
ioaddr += iosize;
- xsize -= iosize;
- } else
- FSDBG(322, uio->uio_offset, uio->uio_resid, error, -1);
-
- if (p && (vp->v_flag & VTEXT) &&
- ((nmp->nm_flag & NFSMNT_NQNFS &&
- NQNFS_CKINVALID(vp, np, ND_READ) &&
- np->n_lrev != np->n_brev) ||
- (!(nmp->nm_flag & NFSMNT_NQNFS) &&
- np->n_mtime != np->n_vattr.va_mtime.tv_sec))) {
- uprintf("Process killed due to text file modification\n");
- psignal(p, SIGKILL);
- p->p_flag |= P_NOSWAP;
+ rxsize -= iosize;
+ if (txsize)
+ break;
}
-
- } while (error == 0 && xsize > 0);
+ } while (!error && (txsize || rxsize));
ubc_upl_unmap(pl);
+ if (error) {
+ /* cancel any outstanding requests */
+ while (req[nextwait]) {
+ nfs_request_async_cancel(req[nextwait]);
+ req[nextwait] = NULL;
+ nextwait = (nextwait + 1) % MAXPAGINGREQS;
+ }
+ }
+
if (!nofreeupl) {
- if (error)
- ubc_upl_abort_range(pl, pl_offset, size,
+ if (error)
+ ubc_upl_abort_range(pl, pl_offset, size,
UPL_ABORT_ERROR |
UPL_ABORT_FREE_ON_EMPTY);
else
/*
- * Vnode op for pageout using UPL
- * Derived from nfs_write()
+ * the following are needed only by nfs_pageout to know how to handle errors
+ * see nfs_pageout comments on explanation of actions.
+ * the errors here are copied from errno.h and errors returned by servers
+ * are expected to match the same numbers here. If not, our actions maybe
+ * erroneous.
+ */
+enum actiontype {NOACTION, DUMP, DUMPANDLOG, RETRY, RETRYWITHSLEEP, SEVER};
+#define NFS_ELAST 88
+static u_char errorcount[NFS_ELAST+1]; /* better be zeros when initialized */
+static const char errortooutcome[NFS_ELAST+1] = {
+ NOACTION,
+ DUMP, /* EPERM 1 Operation not permitted */
+ DUMP, /* ENOENT 2 No such file or directory */
+ DUMPANDLOG, /* ESRCH 3 No such process */
+ RETRY, /* EINTR 4 Interrupted system call */
+ DUMP, /* EIO 5 Input/output error */
+ DUMP, /* ENXIO 6 Device not configured */
+ DUMPANDLOG, /* E2BIG 7 Argument list too long */
+ DUMPANDLOG, /* ENOEXEC 8 Exec format error */
+ DUMPANDLOG, /* EBADF 9 Bad file descriptor */
+ DUMPANDLOG, /* ECHILD 10 No child processes */
+ DUMPANDLOG, /* EDEADLK 11 Resource deadlock avoided - was EAGAIN */
+ RETRY, /* ENOMEM 12 Cannot allocate memory */
+ DUMP, /* EACCES 13 Permission denied */
+ DUMPANDLOG, /* EFAULT 14 Bad address */
+ DUMPANDLOG, /* ENOTBLK 15 POSIX - Block device required */
+ RETRY, /* EBUSY 16 Device busy */
+ DUMP, /* EEXIST 17 File exists */
+ DUMP, /* EXDEV 18 Cross-device link */
+ DUMP, /* ENODEV 19 Operation not supported by device */
+ DUMP, /* ENOTDIR 20 Not a directory */
+ DUMP, /* EISDIR 21 Is a directory */
+ DUMP, /* EINVAL 22 Invalid argument */
+ DUMPANDLOG, /* ENFILE 23 Too many open files in system */
+ DUMPANDLOG, /* EMFILE 24 Too many open files */
+ DUMPANDLOG, /* ENOTTY 25 Inappropriate ioctl for device */
+ DUMPANDLOG, /* ETXTBSY 26 Text file busy - POSIX */
+ DUMP, /* EFBIG 27 File too large */
+ DUMP, /* ENOSPC 28 No space left on device */
+ DUMPANDLOG, /* ESPIPE 29 Illegal seek */
+ DUMP, /* EROFS 30 Read-only file system */
+ DUMP, /* EMLINK 31 Too many links */
+ RETRY, /* EPIPE 32 Broken pipe */
+ /* math software */
+ DUMPANDLOG, /* EDOM 33 Numerical argument out of domain */
+ DUMPANDLOG, /* ERANGE 34 Result too large */
+ RETRY, /* EAGAIN/EWOULDBLOCK 35 Resource temporarily unavailable */
+ DUMPANDLOG, /* EINPROGRESS 36 Operation now in progress */
+ DUMPANDLOG, /* EALREADY 37 Operation already in progress */
+ /* ipc/network software -- argument errors */
+ DUMPANDLOG, /* ENOTSOC 38 Socket operation on non-socket */
+ DUMPANDLOG, /* EDESTADDRREQ 39 Destination address required */
+ DUMPANDLOG, /* EMSGSIZE 40 Message too long */
+ DUMPANDLOG, /* EPROTOTYPE 41 Protocol wrong type for socket */
+ DUMPANDLOG, /* ENOPROTOOPT 42 Protocol not available */
+ DUMPANDLOG, /* EPROTONOSUPPORT 43 Protocol not supported */
+ DUMPANDLOG, /* ESOCKTNOSUPPORT 44 Socket type not supported */
+ DUMPANDLOG, /* ENOTSUP 45 Operation not supported */
+ DUMPANDLOG, /* EPFNOSUPPORT 46 Protocol family not supported */
+ DUMPANDLOG, /* EAFNOSUPPORT 47 Address family not supported by protocol family */
+ DUMPANDLOG, /* EADDRINUSE 48 Address already in use */
+ DUMPANDLOG, /* EADDRNOTAVAIL 49 Can't assign requested address */
+ /* ipc/network software -- operational errors */
+ RETRY, /* ENETDOWN 50 Network is down */
+ RETRY, /* ENETUNREACH 51 Network is unreachable */
+ RETRY, /* ENETRESET 52 Network dropped connection on reset */
+ RETRY, /* ECONNABORTED 53 Software caused connection abort */
+ RETRY, /* ECONNRESET 54 Connection reset by peer */
+ RETRY, /* ENOBUFS 55 No buffer space available */
+ RETRY, /* EISCONN 56 Socket is already connected */
+ RETRY, /* ENOTCONN 57 Socket is not connected */
+ RETRY, /* ESHUTDOWN 58 Can't send after socket shutdown */
+ RETRY, /* ETOOMANYREFS 59 Too many references: can't splice */
+ RETRY, /* ETIMEDOUT 60 Operation timed out */
+ RETRY, /* ECONNREFUSED 61 Connection refused */
+
+ DUMPANDLOG, /* ELOOP 62 Too many levels of symbolic links */
+ DUMP, /* ENAMETOOLONG 63 File name too long */
+ RETRY, /* EHOSTDOWN 64 Host is down */
+ RETRY, /* EHOSTUNREACH 65 No route to host */
+ DUMP, /* ENOTEMPTY 66 Directory not empty */
+ /* quotas & mush */
+ DUMPANDLOG, /* PROCLIM 67 Too many processes */
+ DUMPANDLOG, /* EUSERS 68 Too many users */
+ DUMPANDLOG, /* EDQUOT 69 Disc quota exceeded */
+ /* Network File System */
+ DUMP, /* ESTALE 70 Stale NFS file handle */
+ DUMP, /* EREMOTE 71 Too many levels of remote in path */
+ DUMPANDLOG, /* EBADRPC 72 RPC struct is bad */
+ DUMPANDLOG, /* ERPCMISMATCH 73 RPC version wrong */
+ DUMPANDLOG, /* EPROGUNAVAIL 74 RPC prog. not avail */
+ DUMPANDLOG, /* EPROGMISMATCH 75 Program version wrong */
+ DUMPANDLOG, /* EPROCUNAVAIL 76 Bad procedure for program */
+
+ DUMPANDLOG, /* ENOLCK 77 No locks available */
+ DUMPANDLOG, /* ENOSYS 78 Function not implemented */
+ DUMPANDLOG, /* EFTYPE 79 Inappropriate file type or format */
+ DUMPANDLOG, /* EAUTH 80 Authentication error */
+ DUMPANDLOG, /* ENEEDAUTH 81 Need authenticator */
+ /* Intelligent device errors */
+ DUMPANDLOG, /* EPWROFF 82 Device power is off */
+ DUMPANDLOG, /* EDEVERR 83 Device error, e.g. paper out */
+ DUMPANDLOG, /* EOVERFLOW 84 Value too large to be stored in data type */
+ /* Program loading errors */
+ DUMPANDLOG, /* EBADEXEC 85 Bad executable */
+ DUMPANDLOG, /* EBADARCH 86 Bad CPU type in executable */
+ DUMPANDLOG, /* ESHLIBVERS 87 Shared library version mismatch */
+ DUMPANDLOG, /* EBADMACHO 88 Malformed Macho file */
+};
+
+static char
+nfs_pageouterrorhandler(int error)
+{
+ if (error > NFS_ELAST)
+ return(DUMP);
+ else
+ return(errortooutcome[error]);
+}
+
+
+/*
+ * vnode OP for pageout using UPL
+ *
+ * No buffer I/O, just RPCs straight from the mapped pages.
* File size changes are not permitted in pageout.
*/
static int
-nfs_pageout(ap)
- struct vop_pageout_args /* {
- struct vnode *a_vp,
- upl_t a_pl,
- vm_offset_t a_pl_offset,
- off_t a_f_offset,
- size_t a_size,
- struct ucred *a_cred,
- int a_flags
- } */ *ap;
+nfs_vnop_pageout(
+ struct vnop_pageout_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ upl_t a_pl;
+ vm_offset_t a_pl_offset;
+ off_t a_f_offset;
+ size_t a_size;
+ int a_flags;
+ vfs_context_t a_context;
+ } */ *ap)
{
- register struct vnode *vp = ap->a_vp;
+ vnode_t vp = ap->a_vp;
upl_t pl = ap->a_pl;
- size_t size= ap->a_size;
+ size_t size = ap->a_size;
off_t f_offset = ap->a_f_offset;
vm_offset_t pl_offset = ap->a_pl_offset;
- int flags = ap->a_flags;
- int ioflag = ap->a_flags;
- register int biosize;
- struct proc *p = current_proc();
- struct nfsnode *np = VTONFS(vp);
- register struct ucred *cred;
- struct buf *bp;
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- daddr_t lbn;
- int n = 0, on, error = 0, iomode, must_commit, s;
- off_t off;
- vm_offset_t ioaddr;
+ int flags = ap->a_flags;
+ nfsnode_t np = VTONFS(vp);
+ thread_t thd;
+ kauth_cred_t cred;
+ struct nfsbuf *bp;
+ struct nfsmount *nmp = VTONMP(vp);
+ daddr64_t lbn;
+ int error = 0, iomode;
+ off_t off, txoffset, rxoffset;
+ vm_offset_t ioaddr, txaddr, rxaddr;
struct uio auio;
- struct iovec aiov;
- struct uio * uio = &auio;
+ struct iovec_32 aiov;
int nofreeupl = flags & UPL_NOCOMMIT;
- int iosize;
- int pgsize;
+ size_t nmwsize, biosize, iosize, pgsize, txsize, rxsize, xsize, remsize;
+ struct nfsreq *req[MAXPAGINGREQS];
+ int nextsend, nextwait, wverfset, commit, restart = 0;
+ uint64_t wverf, wverf2;
FSDBG(323, f_offset, size, pl, pl_offset);
if (pl == (upl_t)NULL)
panic("nfs_pageout: no upl");
- if (UBCINVALID(vp)) {
- printf("nfs_pageout: invalid vnode 0x%x", (int)vp);
- if (!nofreeupl)
- (void) ubc_upl_abort(pl, NULL);
- return (EIO);
- }
- UBCINFOCHECK("nfs_pageout", vp);
-
if (size <= 0) {
- printf("nfs_pageout: invalid size %d", size);
+ printf("nfs_pageout: invalid size %ld", size);
if (!nofreeupl)
- (void) ubc_upl_abort(pl, NULL);
+ ubc_upl_abort(pl, 0);
return (EINVAL);
}
- /*
- * I use nm_rsize, not nm_wsize so that all buffer cache blocks
- * will be the same size within a filesystem. nfs_writerpc will
- * still use nm_wsize when sizing the rpc's.
- */
- biosize = min(vp->v_mount->mnt_stat.f_iosize, size);
+ if (!nmp) {
+ if (!nofreeupl)
+ ubc_upl_abort(pl, UPL_ABORT_DUMP_PAGES|UPL_ABORT_FREE_ON_EMPTY);
+ return (ENXIO);
+ }
+ biosize = nmp->nm_biosize;
+ nmwsize = nmp->nm_wsize;
- if (biosize & PAGE_MASK)
- panic("nfs_pageout(%x): biosize not page aligned", biosize);
+ nfs_data_lock2(np, NFS_NODE_LOCK_SHARED, 0);
/*
- * Check to see whether the buffer is incore
- * If incore and not busy invalidate it from the cache
- * we should not find it BUSY, since we always do a
- * vm_fault_list_request in 'getblk' before returning
- * which would block on the page busy status
+ * Check to see whether the buffer is incore.
+ * If incore and not busy, invalidate it from the cache.
*/
- lbn = f_offset / PAGE_SIZE; /* to match the size getblk uses */
-
- for (iosize = size; iosize > 0; iosize -= PAGE_SIZE, lbn++) {
- s = splbio();
- if (bp = incore(vp, lbn)) {
- FSDBG(323, lbn*PAGE_SIZE, 1, bp, bp->b_flags);
- if (ISSET(bp->b_flags, B_BUSY)) {
+ for (iosize = 0; iosize < size; iosize += xsize) {
+ off = f_offset + iosize;
+ /* need make sure we do things on block boundaries */
+ xsize = biosize - (off % biosize);
+ if (off + xsize > f_offset + size)
+ xsize = f_offset + size - off;
+ lbn = (daddr64_t)(off / biosize);
+ lck_mtx_lock(nfs_buf_mutex);
+ if ((bp = nfs_buf_incore(np, lbn))) {
+ FSDBG(323, off, bp, bp->nb_lflags, bp->nb_flags);
+ if (nfs_buf_acquire(bp, NBAC_NOWAIT, 0, 0)) {
+ lck_mtx_unlock(nfs_buf_mutex);
+ nfs_data_unlock2(np, 0);
/* no panic. just tell vm we are busy */
if (!nofreeupl)
- (void) ubc_upl_abort(pl, NULL);
- return(EBUSY);
+ ubc_upl_abort(pl, 0);
+ return (EBUSY);
+ }
+ if (bp->nb_dirtyend > 0) {
+ /*
+ * if there's a dirty range in the buffer, check
+ * to see if it extends beyond the pageout region
+ *
+ * if the dirty region lies completely within the
+ * pageout region, we just invalidate the buffer
+ * because it's all being written out now anyway.
+ *
+ * if any of the dirty region lies outside the
+ * pageout region, we'll try to clip the dirty
+ * region to eliminate the portion that's being
+ * paged out. If that's not possible, because
+ * the dirty region extends before and after the
+ * pageout region, then we'll just return EBUSY.
+ */
+ off_t boff, start, end;
+ boff = NBOFF(bp);
+ start = off;
+ end = off + xsize;
+ /* clip end to EOF */
+ if (end > (off_t)np->n_size)
+ end = np->n_size;
+ start -= boff;
+ end -= boff;
+ if ((bp->nb_dirtyoff < start) &&
+ (bp->nb_dirtyend > end)) {
+ /* not gonna be able to clip the dirty region */
+ FSDBG(323, np, bp, 0xd00deebc, EBUSY);
+ nfs_buf_drop(bp);
+ lck_mtx_unlock(nfs_buf_mutex);
+ nfs_data_unlock2(np, 0);
+ if (!nofreeupl)
+ ubc_upl_abort(pl, 0);
+ return (EBUSY);
+ }
+ if ((bp->nb_dirtyoff < start) ||
+ (bp->nb_dirtyend > end)) {
+ /* clip dirty region, if necessary */
+ if (bp->nb_dirtyoff < start)
+ bp->nb_dirtyend = min(bp->nb_dirtyend, start);
+ if (bp->nb_dirtyend > end)
+ bp->nb_dirtyoff = max(bp->nb_dirtyoff, end);
+ FSDBG(323, bp, bp->nb_dirtyoff, bp->nb_dirtyend, 0xd00dee00);
+ /* we're leaving this block dirty */
+ nfs_buf_drop(bp);
+ lck_mtx_unlock(nfs_buf_mutex);
+ continue;
+ }
+ }
+ nfs_buf_remfree(bp);
+ lck_mtx_unlock(nfs_buf_mutex);
+ SET(bp->nb_flags, NB_INVAL);
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
+ if (ISSET(bp->nb_flags, NB_NEEDCOMMIT)) {
+ CLR(bp->nb_flags, NB_NEEDCOMMIT);
+ np->n_needcommitcnt--;
+ CHECK_NEEDCOMMITCNT(np);
}
- bremfree(bp);
- SET(bp->b_flags, (B_BUSY | B_INVAL));
- brelse(bp);
+ nfs_unlock(np);
+ nfs_buf_release(bp, 1);
+ } else {
+ lck_mtx_unlock(nfs_buf_mutex);
}
- splx(s);
}
+ thd = vfs_context_thread(ap->a_context);
cred = ubc_getcred(vp);
- if (cred == NOCRED)
- cred = ap->a_cred;
+ if (!IS_VALID_CRED(cred))
+ cred = vfs_context_ucred(ap->a_context);
+ nfs_lock(np, NFS_NODE_LOCK_FORCE);
if (np->n_flag & NWRITEERR) {
- np->n_flag &= ~NWRITEERR;
+ error = np->n_error;
+ nfs_unlock(np);
+ nfs_data_unlock2(np, 0);
if (!nofreeupl)
ubc_upl_abort_range(pl, pl_offset, size,
UPL_ABORT_FREE_ON_EMPTY);
- return (np->n_error);
+ return (error);
}
- if ((nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_GOTFSINFO)) == NFSMNT_NFSV3)
- (void)nfs_fsinfo(nmp, vp, cred, p);
+ nfs_unlock(np);
- if (f_offset < 0 || f_offset >= np->n_size ||
- f_offset & PAGE_MASK_64 || size & PAGE_MASK) {
+ if (f_offset < 0 || f_offset >= (off_t)np->n_size ||
+ f_offset & PAGE_MASK_64 || size & PAGE_MASK_64) {
+ nfs_data_unlock2(np, 0);
if (!nofreeupl)
ubc_upl_abort_range(pl, pl_offset, size,
UPL_ABORT_FREE_ON_EMPTY);
}
ubc_upl_map(pl, &ioaddr);
+ ioaddr += pl_offset;
- if (f_offset + size > np->n_size)
- iosize = np->n_size - f_offset;
+ if ((u_quad_t)f_offset + size > np->n_size)
+ xsize = np->n_size - f_offset;
else
- iosize = size;
-
- pgsize = (iosize + (PAGE_SIZE - 1)) & ~PAGE_MASK;
+ xsize = size;
- if (size > pgsize) {
- if (!nofreeupl)
- ubc_upl_abort_range(pl, pl_offset + pgsize,
- size - pgsize,
- UPL_ABORT_FREE_ON_EMPTY);
- }
- auio.uio_iov = &aiov;
- auio.uio_iovcnt = 1;
- auio.uio_offset = f_offset;
- auio.uio_segflg = UIO_SYSSPACE;
- auio.uio_rw = UIO_READ;
- auio.uio_resid = iosize;
- auio.uio_procp = NULL;
+ pgsize = round_page_64(xsize);
+ if ((size > pgsize) && !nofreeupl)
+ ubc_upl_abort_range(pl, pl_offset + pgsize, size - pgsize,
+ UPL_ABORT_FREE_ON_EMPTY);
- aiov.iov_len = iosize;
- aiov.iov_base = (caddr_t)ioaddr + pl_offset;
- /*
+ /*
* check for partial page and clear the
* contents past end of the file before
* releasing it in the VM page cache
*/
- if (f_offset < np->n_size && f_offset + size > np->n_size) {
+ if ((u_quad_t)f_offset < np->n_size && (u_quad_t)f_offset + size > np->n_size) {
size_t io = np->n_size - f_offset;
-
- bzero((caddr_t)(ioaddr + pl_offset + io), size - io);
-
+ bzero((caddr_t)(ioaddr + io), size - io);
FSDBG(321, np->n_size, f_offset, f_offset + io, size - io);
}
+ nfs_data_unlock2(np, 0);
+
+#if 1 /* LP64todo - can't use new segment flags until the drivers are ready */
+ auio.uio_segflg = UIO_SYSSPACE;
+#else
+ auio.uio_segflg = UIO_SYSSPACE32;
+#endif
+ auio.uio_rw = UIO_WRITE;
+ auio.uio_procp = vfs_context_proc(ap->a_context);
+tryagain:
+ wverf = wverf2 = wverfset = 0;
+ txsize = rxsize = xsize;
+ txoffset = rxoffset = f_offset;
+ txaddr = rxaddr = ioaddr;
+ commit = NFS_WRITE_FILESYNC;
+
+ bzero(req, sizeof(req));
+ nextsend = nextwait = 0;
do {
-#warning our nfs_pageout does not support NQNFS
- nfsstats.pageouts++;
- lbn = uio->uio_offset / biosize;
- on = uio->uio_offset & (biosize-1);
- n = min((unsigned)(biosize - on), uio->uio_resid);
-again:
-#if 0
- /* (removed for UBC) */
- bufsize = biosize;
- if ((off_t)(lbn + 1) * biosize > np->n_size) {
- bufsize = np->n_size - (off_t)lbn * biosize;
- bufsize = (bufsize + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
+ /* send requests while we need to and have available slots */
+ while ((txsize > 0) && (req[nextsend] == NULL)) {
+ iosize = MIN(nmwsize, txsize);
+ aiov.iov_len = iosize;
+ aiov.iov_base = (uintptr_t)txaddr;
+ auio.uio_iovs.iov32p = &aiov;
+ auio.uio_iovcnt = 1;
+ auio.uio_offset = txoffset;
+ uio_uio_resid_set(&auio, iosize);
+ FSDBG(323, auio.uio_offset, iosize, txaddr, txsize);
+ OSAddAtomic(1, (SInt32*)&nfsstats.pageouts);
+ vnode_startwrite(vp);
+ iomode = NFS_WRITE_UNSTABLE;
+ if ((error = nmp->nm_funcs->nf_write_rpc_async(np, &auio, iosize, thd, cred, iomode, NULL, &req[nextsend]))) {
+ req[nextsend] = NULL;
+ vnode_writedone(vp);
+ break;
+ }
+ txaddr += iosize;
+ txoffset += iosize;
+ txsize -= iosize;
+ nextsend = (nextsend + 1) % MAXPAGINGREQS;
}
-#endif
- vp->v_numoutput++;
- /* NMODIFIED would be set here if doing unstable writes */
- iomode = NFSV3WRITE_FILESYNC;
- error = nfs_writerpc(vp, uio, cred, &iomode, &must_commit);
- if (must_commit)
- nfs_clearcommit(vp->v_mount);
- vpwakeup(vp);
+ /* wait while we need to and break out if more requests to send */
+ while ((rxsize > 0) && req[nextwait]) {
+ iosize = remsize = MIN(nmwsize, rxsize);
+ error = nmp->nm_funcs->nf_write_rpc_async_finish(np, req[nextwait], &iomode, &iosize, &wverf2);
+ req[nextwait] = NULL;
+ nextwait = (nextwait + 1) % MAXPAGINGREQS;
+ vnode_writedone(vp);
+ if (error) {
+ FSDBG(323, rxoffset, rxsize, error, -1);
+ break;
+ }
+ if (!wverfset) {
+ wverf = wverf2;
+ wverfset = 1;
+ } else if (wverf != wverf2) {
+ /* verifier changed, so we need to restart all the writes */
+ restart++;
+ goto cancel;
+ }
+ /* Retain the lowest commitment level returned. */
+ if (iomode < commit)
+ commit = iomode;
+ rxaddr += iosize;
+ rxoffset += iosize;
+ rxsize -= iosize;
+ remsize -= iosize;
+ if (remsize > 0) {
+ /* need to try sending the remainder */
+ iosize = remsize;
+ aiov.iov_len = remsize;
+ aiov.iov_base = (uintptr_t)rxaddr;
+ auio.uio_iovs.iov32p = &aiov;
+ auio.uio_iovcnt = 1;
+ auio.uio_offset = rxoffset;
+ uio_uio_resid_set(&auio, remsize);
+ iomode = NFS_WRITE_UNSTABLE;
+ error = nfs_write_rpc2(np, &auio, thd, cred, &iomode, &wverf2);
+ if (error) {
+ FSDBG(323, rxoffset, rxsize, error, -1);
+ break;
+ }
+ if (wverf != wverf2) {
+ /* verifier changed, so we need to restart all the writes */
+ restart++;
+ goto cancel;
+ }
+ if (iomode < commit)
+ commit = iomode;
+ rxaddr += iosize;
+ rxoffset += iosize;
+ rxsize -= iosize;
+ }
+ if (txsize)
+ break;
+ }
+ } while (!error && (txsize || rxsize));
- if (error)
- goto cleanup;
+ restart = 0;
- if (n > 0) {
- uio->uio_resid -= n;
- uio->uio_offset += n;
- uio->uio_iov->iov_base += n;
- uio->uio_iov->iov_len -= n;
+ if (!error && (commit != NFS_WRITE_FILESYNC)) {
+ error = nmp->nm_funcs->nf_commit_rpc(np, f_offset, xsize, cred);
+ if (error == NFSERR_STALEWRITEVERF) {
+ restart++;
+ error = EIO;
}
- } while (uio->uio_resid > 0 && n > 0);
+ }
+
+ if (error) {
+cancel:
+ /* cancel any outstanding requests */
+ while (req[nextwait]) {
+ nfs_request_async_cancel(req[nextwait]);
+ req[nextwait] = NULL;
+ nextwait = (nextwait + 1) % MAXPAGINGREQS;
+ vnode_writedone(vp);
+ }
+ if (restart) {
+ if (restart <= 10)
+ goto tryagain;
+ printf("nfs_pageout: too many restarts, aborting.\n");
+ FSDBG(323, f_offset, xsize, ERESTART, -1);
+ }
+ }
-cleanup:
ubc_upl_unmap(pl);
+
/*
* We've had several different solutions on what to do when the pageout
- * gets an error. If we don't handle it, and return an error to the
- * caller, vm, it will retry . This can end in endless looping
+ * gets an error. If we don't handle it, and return an error to the
+ * caller, vm, it will retry . This can end in endless looping
* between vm and here doing retries of the same page. Doing a dump
* back to vm, will get it out of vm's knowledge and we lose whatever
* data existed. This is risky, but in some cases necessary. For
* example, the initial fix here was to do that for ESTALE. In that case
- * the server is telling us that the file is no longer the same. We
- * would not want to keep paging out to that. We also saw some 151
+ * the server is telling us that the file is no longer the same. We
+ * would not want to keep paging out to that. We also saw some 151
* errors from Auspex server and NFSv3 can return errors higher than
* ELAST. Those along with NFS known server errors we will "dump" from
* vm. Errors we don't expect to occur, we dump and log for further
* have some kind of persistant store when the vm cannot dump nor keep
* retrying as a solution, but this would be a file architectural change
*/
-
if (!nofreeupl) { /* otherwise stacked file system has to handle this */
if (error) {
- int abortflags;
- short action = nfs_pageouterrorhandler(error);
+ int abortflags = 0;
+ char action = nfs_pageouterrorhandler(error);
switch (action) {
case DUMP:
break;
case DUMPANDLOG:
abortflags = UPL_ABORT_DUMP_PAGES|UPL_ABORT_FREE_ON_EMPTY;
- if (error <= ELAST &&
- (errorcount[error] % 100 == 0))
- printf("nfs_pageout: unexpected error %d. dumping vm page\n", error);
- errorcount[error]++;
+ if (error <= NFS_ELAST) {
+ if ((errorcount[error] % 100) == 0)
+ printf("nfs_pageout: unexpected error %d. dumping vm page\n", error);
+ errorcount[error]++;
+ }
break;
case RETRY:
abortflags = UPL_ABORT_FREE_ON_EMPTY;
case RETRYWITHSLEEP:
abortflags = UPL_ABORT_FREE_ON_EMPTY;
/* pri unused. PSOCK for placeholder. */
- (void) tsleep(&lbolt, PSOCK,
- "nfspageout", 0);
+ tsleep(&lbolt, PSOCK, "nfspageout", 0);
break;
case SEVER: /* not implemented */
default:
printf("nfs_pageout: action %d not expected\n", action);
break;
}
-
- ubc_upl_abort_range(pl, pl_offset, size, abortflags);
+
+ ubc_upl_abort_range(pl, pl_offset, pgsize, abortflags);
/* return error in all cases above */
-
- } else
+
+ } else {
ubc_upl_commit_range(pl, pl_offset, pgsize,
UPL_COMMIT_CLEAR_DIRTY |
UPL_COMMIT_FREE_ON_EMPTY);
+ }
}
return (error);
}
/* Blktooff derives file offset given a logical block number */
static int
-nfs_blktooff(ap)
- struct vop_blktooff_args /* {
- struct vnode *a_vp;
- daddr_t a_lblkno;
- off_t *a_offset;
- } */ *ap;
+nfs_vnop_blktooff(
+ struct vnop_blktooff_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ daddr64_t a_lblkno;
+ off_t *a_offset;
+ } */ *ap)
{
int biosize;
- register struct vnode *vp = ap->a_vp;
+ vnode_t vp = ap->a_vp;
+ struct nfsmount *nmp = VTONMP(vp);
- biosize = min(vp->v_mount->mnt_stat.f_iosize, PAGE_SIZE); /* nfs_bio.c */
+ if (!nmp)
+ return (ENXIO);
+ biosize = nmp->nm_biosize;
- *ap->a_offset = (off_t)ap->a_lblkno * biosize;
+ *ap->a_offset = (off_t)(ap->a_lblkno * biosize);
return (0);
}
static int
-nfs_offtoblk(ap)
- struct vop_offtoblk_args /* {
- struct vnode *a_vp;
- off_t a_offset;
- daddr_t *a_lblkno;
- } */ *ap;
+nfs_vnop_offtoblk(
+ struct vnop_offtoblk_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ off_t a_offset;
+ daddr64_t *a_lblkno;
+ } */ *ap)
{
int biosize;
- register struct vnode *vp = ap->a_vp;
+ vnode_t vp = ap->a_vp;
+ struct nfsmount *nmp = VTONMP(vp);
- biosize = min(vp->v_mount->mnt_stat.f_iosize, PAGE_SIZE); /* nfs_bio.c */
+ if (!nmp)
+ return (ENXIO);
+ biosize = nmp->nm_biosize;
- *ap->a_lblkno = (daddr_t)(ap->a_offset / biosize);
+ *ap->a_lblkno = (daddr64_t)(ap->a_offset / biosize);
return (0);
}
-static int
-nfs_cmap(ap)
- struct vop_cmap_args /* {
- struct vnode *a_vp;
- off_t a_offset;
- size_t a_size;
- daddr_t *a_bpn;
- size_t *a_run;
- void *a_poff;
- } */ *ap;
-{
- return (EOPNOTSUPP);
-}
+
projects / apple / xnu.git / blobdiff