/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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. 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * 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 */
/*
/*
* vnode op calls for Sun NFS version 2 and 3
*/
-
#include <sys/param.h>
#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 <kern/clock.h>
+#include <libkern/OSAtomic.h>
#include <miscfs/fifofs/fifo.h>
#include <miscfs/specfs/specdev.h>
#include <nfs/nfs.h>
#include <nfs/nfsnode.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 <netinet/in_var.h>
-#include <kern/task.h>
#include <vm/vm_kern.h>
+#include <kern/task.h>
+#include <kern/sched_prim.h>
+
#include <sys/kdebug.h>
-#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 *));
+#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)
+
+static int nfsspec_read(struct vnop_read_args *);
+static int nfsspec_write(struct vnop_write_args *);
+static int nfsfifo_read(struct vnop_read_args *);
+static int nfsfifo_write(struct vnop_write_args *);
+static int nfsspec_close(struct vnop_close_args *);
+static int nfsfifo_close(struct vnop_close_args *);
+static int nfs_ioctl(struct vnop_ioctl_args *);
+static int nfs_select(struct vnop_select_args *);
+static int nfs_setattrrpc(vnode_t,struct vnode_attr *,kauth_cred_t,proc_t);
+static int nfs_lookup(struct vnop_lookup_args *);
+static int nfs_create(struct vnop_create_args *);
+static int nfs_mknod(struct vnop_mknod_args *);
+static int nfs_open(struct vnop_open_args *);
+static int nfs_close(struct vnop_close_args *);
+static int nfs_access(struct vnop_access_args *);
+static int nfs_vnop_getattr(struct vnop_getattr_args *);
+static int nfs_setattr(struct vnop_setattr_args *);
+static int nfs_read(struct vnop_read_args *);
+static int nfs_mmap(struct vnop_mmap_args *);
+static int nfs_fsync(struct vnop_fsync_args *);
+static int nfs_remove(struct vnop_remove_args *);
+static int nfs_link(struct vnop_link_args *);
+static int nfs_rename(struct vnop_rename_args *);
+static int nfs_mkdir(struct vnop_mkdir_args *);
+static int nfs_rmdir(struct vnop_rmdir_args *);
+static int nfs_symlink(struct vnop_symlink_args *);
+static int nfs_readdir(struct vnop_readdir_args *);
+static int nfs_lookitup(vnode_t,char *,int,kauth_cred_t,proc_t,struct nfsnode **);
+static int nfs_sillyrename(vnode_t,vnode_t,struct componentname *,kauth_cred_t,proc_t);
+static int nfs_readlink(struct vnop_readlink_args *);
+static int nfs_pathconf(struct vnop_pathconf_args *);
+static int nfs_advlock(struct vnop_advlock_args *);
+static int nfs_pagein(struct vnop_pagein_args *);
+static int nfs_pageout(struct vnop_pageout_args *);
+static int nfs_blktooff(struct vnop_blktooff_args *);
+static int nfs_offtoblk(struct vnop_offtoblk_args *);
+static int nfs_blockmap(struct vnop_blockmap_args *);
/*
* Global vfs data structures for nfs
*/
-vop_t **nfsv2_vnodeop_p;
+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_lookup }, /* lookup */
+ { &vnop_create_desc, (vnop_t *)nfs_create }, /* create */
+ { &vnop_mknod_desc, (vnop_t *)nfs_mknod }, /* mknod */
+ { &vnop_open_desc, (vnop_t *)nfs_open }, /* open */
+ { &vnop_close_desc, (vnop_t *)nfs_close }, /* close */
+ { &vnop_access_desc, (vnop_t *)nfs_access }, /* access */
+ { &vnop_getattr_desc, (vnop_t *)nfs_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfs_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfs_write }, /* write */
+ { &vnop_ioctl_desc, (vnop_t *)nfs_ioctl }, /* ioctl */
+ { &vnop_select_desc, (vnop_t *)nfs_select }, /* select */
+ { &vnop_revoke_desc, (vnop_t *)nfs_revoke }, /* revoke */
+ { &vnop_mmap_desc, (vnop_t *)nfs_mmap }, /* mmap */
+ { &vnop_fsync_desc, (vnop_t *)nfs_fsync }, /* fsync */
+ { &vnop_remove_desc, (vnop_t *)nfs_remove }, /* remove */
+ { &vnop_link_desc, (vnop_t *)nfs_link }, /* link */
+ { &vnop_rename_desc, (vnop_t *)nfs_rename }, /* rename */
+ { &vnop_mkdir_desc, (vnop_t *)nfs_mkdir }, /* mkdir */
+ { &vnop_rmdir_desc, (vnop_t *)nfs_rmdir }, /* rmdir */
+ { &vnop_symlink_desc, (vnop_t *)nfs_symlink }, /* symlink */
+ { &vnop_readdir_desc, (vnop_t *)nfs_readdir }, /* readdir */
+ { &vnop_readlink_desc, (vnop_t *)nfs_readlink }, /* readlink */
+ { &vnop_inactive_desc, (vnop_t *)nfs_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_reclaim }, /* reclaim */
+ { &vnop_strategy_desc, (vnop_t *)err_strategy }, /* strategy */
+ { &vnop_pathconf_desc, (vnop_t *)nfs_pathconf }, /* pathconf */
+ { &vnop_advlock_desc, (vnop_t *)nfs_advlock }, /* advlock */
+ { &vnop_bwrite_desc, (vnop_t *)err_bwrite }, /* bwrite */
+ { &vnop_pagein_desc, (vnop_t *)nfs_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_pageout }, /* Pageout */
+ { &vnop_copyfile_desc, (vnop_t *)err_copyfile }, /* Copyfile */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_blockmap }, /* blockmap */
{ NULL, NULL }
};
struct vnodeopv_desc nfsv2_vnodeop_opv_desc =
/*
* 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_close }, /* close */
+ { &vnop_getattr_desc, (vnop_t *)nfs_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfsspec_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfsspec_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_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_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_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_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_pageout }, /* Pageout */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_blockmap }, /* blockmap */
{ NULL, NULL }
};
struct vnodeopv_desc spec_nfsv2nodeop_opv_desc =
VNODEOP_SET(spec_nfsv2nodeop_opv_desc);
#endif
-vop_t **fifo_nfsv2nodeop_p;
+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_badop }, /* 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_close }, /* close */
+ { &vnop_getattr_desc, (vnop_t *)nfs_vnop_getattr }, /* getattr */
+ { &vnop_setattr_desc, (vnop_t *)nfs_setattr }, /* setattr */
+ { &vnop_read_desc, (vnop_t *)nfsfifo_read }, /* read */
+ { &vnop_write_desc, (vnop_t *)nfsfifo_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_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_inactive }, /* inactive */
+ { &vnop_reclaim_desc, (vnop_t *)nfs_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_pagein }, /* Pagein */
+ { &vnop_pageout_desc, (vnop_t *)nfs_pageout }, /* Pageout */
+ { &vnop_blktooff_desc, (vnop_t *)nfs_blktooff }, /* blktooff */
+ { &vnop_offtoblk_desc, (vnop_t *)nfs_offtoblk }, /* offtoblk */
+ { &vnop_blockmap_desc, (vnop_t *)nfs_blockmap }, /* blockmap */
{ NULL, NULL }
};
struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc =
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));
+static int nfs_mknodrpc(vnode_t dvp, vnode_t *vpp,
+ struct componentname *cnp,
+ struct vnode_attr *vap,
+ kauth_cred_t cred, proc_t p);
+static int nfs_removerpc(vnode_t dvp, char *name, int namelen,
+ kauth_cred_t cred, proc_t proc);
+static int nfs_renamerpc(vnode_t fdvp, char *fnameptr,
+ int fnamelen, vnode_t tdvp,
+ char *tnameptr, int tnamelen,
+ kauth_cred_t cred, proc_t proc);
/*
* Global variables
*/
+extern u_long nfs_xdrneg1;
extern u_long nfs_true, nfs_false;
extern struct nfsstats nfsstats;
extern nfstype nfsv3_type[9];
-struct proc *nfs_iodwant[NFS_MAXASYNCDAEMON];
+proc_t nfs_iodwant[NFS_MAXASYNCDAEMON];
struct nfsmount *nfs_iodmount[NFS_MAXASYNCDAEMON];
+
+lck_grp_t *nfs_iod_lck_grp;
+lck_grp_attr_t *nfs_iod_lck_grp_attr;
+lck_attr_t *nfs_iod_lck_attr;
+lck_mtx_t *nfs_iod_mutex;
+
int nfs_numasync = 0;
+int nfs_ioddelwri = 0;
+
#define DIRHDSIZ (sizeof (struct dirent) - (MAXNAMLEN + 1))
static int nfsaccess_cache_timeout = NFS_MAXATTRTIMO;
| 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 */
+};
+
+
+static short
+nfs_pageouterrorhandler(int error)
+{
+ if (error > ELAST)
+ return(DUMP);
+ else
+ return(errortooutcome[error]);
+}
static int
-nfs3_access_otw(struct vnode *vp,
- int wmode,
- struct proc *p,
- struct ucred *cred)
+nfs3_access_otw(vnode_t vp,
+ int wmode,
+ proc_t p,
+ kauth_cred_t cred)
{
- 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);
-
- 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);
- nfsm_postop_attr(vp, attrflag);
- 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;
+ const int v3 = 1;
+ u_long *tl;
+ int error = 0, attrflag;
+
+ mbuf_t mreq, mrep, md, mb, mb2;
+ caddr_t bpos, dpos, cp2;
+ register long t1, t2;
+ register caddr_t cp;
+ u_int32_t rmode;
+ struct nfsnode *np = VTONFS(vp);
+ u_int64_t xid;
+ struct timeval now;
+
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_UNSIGNED);
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_ACCESS]);
+ nfsm_fhtom(vp, v3);
+ nfsm_build(tl, u_long *, NFSX_UNSIGNED);
+ *tl = txdr_unsigned(wmode);
+ nfsm_request(vp, NFSPROC_ACCESS, p, cred, &xid);
+ if (mrep) {
+ nfsm_postop_attr_update(vp, 1, attrflag, &xid);
+ }
+ if (!error) {
+ nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
+ rmode = fxdr_unsigned(u_int32_t, *tl);
+ np->n_mode = rmode;
+ np->n_modeuid = kauth_cred_getuid(cred);
+ microuptime(&now);
+ np->n_modestamp = now.tv_sec;
+ }
+ nfsm_reqdone;
+ return error;
}
/*
*/
static int
nfs_access(ap)
- struct vop_access_args /* {
- struct vnode *a_vp;
- int a_mode;
- struct ucred *a_cred;
- struct proc *a_p;
+ struct vnop_access_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;
- int error = 0;
- u_long mode, wmode;
+ vnode_t vp = ap->a_vp;
+ int error = 0, dorpc;
+ u_long mode, wmode;
int v3 = NFS_ISV3(vp);
- struct nfsnode *np = VTONFS(vp);
+ struct nfsnode *np = VTONFS(vp);
+ struct timeval now;
+ kauth_cred_t cred;
/*
* For nfs v3, do an access rpc, otherwise you are stuck emulating
* 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)
+ /*
+ * Convert KAUTH primitives to NFS access rights.
+ */
+ mode = 0;
+ if (vnode_isdir(vp)) {
+ /* directory */
+ if (ap->a_action &
+ (KAUTH_VNODE_LIST_DIRECTORY |
+ KAUTH_VNODE_READ_EXTATTRIBUTES))
+ mode |= NFSV3ACCESS_READ;
+ if (ap->a_action & KAUTH_VNODE_SEARCH)
mode |= NFSV3ACCESS_LOOKUP;
+ if (ap->a_action &
+ (KAUTH_VNODE_ADD_FILE |
+ KAUTH_VNODE_ADD_SUBDIRECTORY))
+ mode |= NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND;
+ if (ap->a_action & KAUTH_VNODE_DELETE_CHILD)
+ mode |= NFSV3ACCESS_MODIFY;
} else {
- if (ap->a_mode & VWRITE)
- mode |= (NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND);
- if (ap->a_mode & VEXEC)
+ /* file */
+ if (ap->a_action &
+ (KAUTH_VNODE_READ_DATA |
+ KAUTH_VNODE_READ_EXTATTRIBUTES))
+ mode |= NFSV3ACCESS_READ;
+ if (ap->a_action & KAUTH_VNODE_WRITE_DATA)
+ mode |= NFSV3ACCESS_MODIFY | NFSV3ACCESS_EXTEND;
+ if (ap->a_action & KAUTH_VNODE_APPEND_DATA)
+ mode |= NFSV3ACCESS_EXTEND;
+ if (ap->a_action & KAUTH_VNODE_EXECUTE)
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;
- }
+ /* common */
+ if (ap->a_action & KAUTH_VNODE_DELETE)
+ mode |= NFSV3ACCESS_DELETE;
+ if (ap->a_action &
+ (KAUTH_VNODE_WRITE_ATTRIBUTES |
+ KAUTH_VNODE_WRITE_EXTATTRIBUTES |
+ KAUTH_VNODE_WRITE_SECURITY))
+ mode |= NFSV3ACCESS_MODIFY;
+ /* XXX this is pretty dubious */
+ if (ap->a_action & KAUTH_VNODE_CHANGE_OWNER)
+ mode |= NFSV3ACCESS_MODIFY;
+
+ /* if caching, always ask for every right */
+ 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)
+ cred = vfs_context_ucred(ap->a_context);
+
+ /*
+ * Does our cached result allow us to give a definite yes to
+ * this request?
+ */
+ dorpc = 1;
+ if (NMODEVALID(np)) {
+ microuptime(&now);
+ if ((now.tv_sec < (np->n_modestamp + nfsaccess_cache_timeout)) &&
+ (kauth_cred_getuid(cred) == np->n_modeuid) &&
+ ((np->n_mode & mode) == mode)) {
+ /* OSAddAtomic(1, (SInt32*)&nfsstats.accesscache_hits); */
+ dorpc = 0;
+ }
+ }
+ if (dorpc) {
+ /* Either a no, or a don't know. Go to the wire. */
+ /* OSAddAtomic(1, (SInt32*)&nfsstats.accesscache_misses); */
+ error = nfs3_access_otw(vp, wmode, vfs_context_proc(ap->a_context), cred);
+ }
+ if (!error) {
+ /*
+ * 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 & NFSV3ACCESS_DELETE) &&
+ !(np->n_mode & NFSV3ACCESS_DELETE))
+ np->n_mode |= NFSV3ACCESS_DELETE;
+ if ((np->n_mode & mode) != mode)
error = EACCES;
- }
- }
- } else
- return (nfsspec_access(ap)); /* NFSv2 case checks for EROFS here*/
- /* 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.*/
- /*
- * 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 (!error && (ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
- switch (vp->v_type) {
- case VREG: case VDIR: case VLNK:
+ }
+ } else {
+ /* v2 */
+ if ((ap->a_action & KAUTH_VNODE_WRITE_RIGHTS) && vfs_isrdonly(vnode_mount(vp))) {
error = EROFS;
- default:
- break;
+ } else {
+ error = 0;
}
}
- return (error);
+
+ return (error);
}
/*
* if consistency is lost.
*/
/* 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;
+ 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;
+ vnode_t vp = ap->a_vp;
struct nfsnode *np = VTONFS(vp);
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
- struct vattr vattr;
+ struct nfs_vattr nvattr;
+ kauth_cred_t cred;
+ proc_t p;
+ enum vtype vtype;
int error;
- if (vp->v_type != VREG && vp->v_type != VDIR && vp->v_type != VLNK)
-{ printf("open eacces vtyp=%d\n",vp->v_type);
+ vtype = vnode_vtype(vp);
+ if (vtype != VREG && vtype != VDIR && vtype != VLNK) {
return (EACCES);
-}
- /*
- * 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)
+ }
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ if (np->n_flag & NNEEDINVALIDATE) {
+ np->n_flag &= ~NNEEDINVALIDATE;
+ nfs_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, cred, p, 1);
+ }
+ if (np->n_flag & NMODIFIED) {
+ if ((error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1)) == EINTR)
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;
- }
+ NATTRINVALIDATE(np);
+ if (vtype == VDIR)
+ np->n_direofoffset = 0;
+ error = nfs_getattr(vp, &nvattr, cred, p);
+ if (error)
+ return (error);
+ if (vtype == VDIR) {
+ /* if directory changed, purge any name cache entries */
+ if (nfstimespeccmp(&np->n_ncmtime, &nvattr.nva_mtime, !=))
+ cache_purge(vp);
+ np->n_ncmtime = nvattr.nva_mtime;
}
+ np->n_mtime = nvattr.nva_mtime;
} 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)
+ error = nfs_getattr(vp, &nvattr, cred, p);
+ if (error)
+ return (error);
+ if (nfstimespeccmp(&np->n_mtime, &nvattr.nva_mtime, !=)) {
+ if (vtype == VDIR) {
np->n_direofoffset = 0;
- error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
- if (error)
- return (error);
- np->n_mtime = vattr.va_mtime.tv_sec;
- } else {
- error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
- if (error)
- 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;
+ nfs_invaldir(vp);
+ /* purge name cache entries */
+ if (nfstimespeccmp(&np->n_ncmtime, &nvattr.nva_mtime, !=))
+ cache_purge(vp);
}
+ if ((error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1)) == EINTR)
+ return (error);
+ if (vtype == VDIR)
+ np->n_ncmtime = nvattr.nva_mtime;
+ np->n_mtime = nvattr.nva_mtime;
}
}
- if ((nmp->nm_flag & NFSMNT_NQNFS) == 0)
- np->n_attrstamp = 0; /* For Open/Close consistency */
+ NATTRINVALIDATE(np); /* For Open/Close consistency */
return (0);
}
* 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 /* {
+ struct vnop_close_args /* {
struct vnodeop_desc *a_desc;
- struct vnode *a_vp;
- int a_fflag;
- struct ucred *a_cred;
- struct proc *a_p;
+ 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);
+ vnode_t vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsmount *nmp;
+ kauth_cred_t cred;
+ proc_t p;
int error = 0;
- if (vp->v_type == VREG) {
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ if (vnode_vtype(vp) == VREG) {
#if DIAGNOSTIC
register struct sillyrename *sp = np->n_sillyrename;
if (sp)
&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)) {
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ if (np->n_flag & NNEEDINVALIDATE) {
+ np->n_flag &= ~NNEEDINVALIDATE;
+ nfs_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, cred, p, 1);
+ }
+ if (np->n_flag & NMODIFIED) {
if (NFS_ISV3(vp)) {
- error = nfs_flush(vp, ap->a_cred, MNT_WAIT, ap->a_p, 0);
- np->n_flag &= ~NMODIFIED;
- } else
- error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1);
- np->n_attrstamp = 0;
+ error = nfs_flush(vp, MNT_WAIT, cred, p, 0);
+ /*
+ * 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, cred, p, 1);
+ }
+ NATTRINVALIDATE(np);
}
if (np->n_flag & NWRITEERR) {
np->n_flag &= ~NWRITEERR;
return (error);
}
+
+int
+nfs_getattr_no_vnode(
+ mount_t mp,
+ u_char *fhp,
+ int fhsize,
+ kauth_cred_t cred,
+ proc_t p,
+ struct nfs_vattr *nvap,
+ u_int64_t *xidp)
+{
+ mbuf_t mreq, mrep, md, mb, mb2;
+ caddr_t bpos, dpos;
+ int t2;
+ u_long *tl;
+ caddr_t cp;
+ struct nfsmount *nmp = VFSTONFS(mp);
+ int v3 = (nmp->nm_flag & NFSMNT_NFSV3);
+ int hsiz;
+ int error = 0;
+
+ // XXX fix this to use macros once the macros get cleaned up
+ //nfsm_reqhead(NFSX_FH(v3));
+ hsiz = NFSX_FH(v3);
+ mb = NULL;
+ if (hsiz >= nfs_mbuf_minclsize)
+ error = mbuf_mclget(MBUF_WAITOK, MBUF_TYPE_DATA, &mb);
+ else
+ error = mbuf_get(MBUF_WAITOK, MBUF_TYPE_DATA, &mb);
+ if (error)
+ return (error);
+ bpos = mbuf_data(mb);
+ mreq = mb;
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_GETATTR]);
+ //nfsm_fhtom(vp, v3);
+ if (v3) {
+ t2 = nfsm_rndup(fhsize) + NFSX_UNSIGNED;
+ if (t2 <= mbuf_trailingspace(mb)) {
+ nfsm_build(tl, u_long *, t2);
+ *tl++ = txdr_unsigned(fhsize);
+ *(tl + ((t2>>2) - 2)) = 0;
+ bcopy((caddr_t)fhp,(caddr_t)tl, fhsize);
+ } else if ((t2 = nfsm_strtmbuf(&mb, &bpos, (caddr_t)fhp, fhsize))) {
+ error = t2;
+ mbuf_freem(mreq);
+ goto nfsmout;
+ }
+ } else {
+ nfsm_build(cp, caddr_t, NFSX_V2FH);
+ bcopy((caddr_t)fhp, cp, NFSX_V2FH);
+ }
+ //nfsm_request(vp, NFSPROC_GETATTR, p, cred, xidp);
+ if ((error = nfs_request(NULL, mp, mreq, NFSPROC_GETATTR, p, cred, &mrep, &md, &dpos, xidp))) {
+ if (error & NFSERR_RETERR)
+ error &= ~NFSERR_RETERR;
+ else
+ goto nfsmout;
+ }
+ if (!error) {
+ //nfsm_loadattr(vp, nvap, xidp);
+ error = nfs_parsefattr(&md, &dpos, v3, nvap);
+ if (error) {
+ mbuf_freem(mrep);
+ goto nfsmout;
+ }
+ }
+ nfsm_reqdone;
+ 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
+nfs_getattr(
+ vnode_t vp,
+ struct nfs_vattr *nvap,
+ kauth_cred_t cred,
+ proc_t p)
{
- 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;
+ struct nfsnode *np = VTONFS(vp);
+ caddr_t cp;
+ u_long *tl;
+ int t1, t2;
caddr_t bpos, dpos;
int error = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- int v3 = NFS_ISV3(vp);
-
+ mbuf_t mreq, mrep, md, mb, mb2;
+ int v3;
+ u_int64_t xid;
+ int avoidfloods;
+
+ 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))
np->n_flag |= NCHG;
-
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 513)) | DBG_FUNC_START,
- (int)np->n_size, 0, (int)np->n_vattr.va_size, np->n_flag, 0);
-
/*
* First look in the cache.
*/
- if ((error = nfs_getattrcache(vp, ap->a_vap)) == 0) {
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 513)) | DBG_FUNC_END,
- (int)np->n_size, 0, (int)np->n_vattr.va_size, np->n_flag, 0);
-
+ if ((error = nfs_getattrcache(vp, nvap)) == 0) {
+ FSDBG_BOT(513, np->n_size, 0, np->n_vattr.nva_size, np->n_flag);
return (0);
}
- if (error != ENOENT)
+ if (error != ENOENT) {
+ FSDBG_BOT(513, np->n_size, error, np->n_vattr.nva_size,
+ np->n_flag);
return (error);
+ }
+
+ if (!VFSTONFS(vnode_mount(vp))) {
+ FSDBG_BOT(513, np->n_size, ENXIO, np->n_vattr.nva_size, np->n_flag);
+ return (ENXIO);
+ }
+ v3 = NFS_ISV3(vp);
error = 0;
-
- 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)
+
+ /*
+ * 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 (v3 && (nfsaccess_cache_timeout > 0) &&
+ (nfs_attrcachetimeout(vp) > 0)) {
+ /* OSAddAtomic(1, (SInt32*)&nfsstats.accesscache_misses); */
+ if ((error = nfs3_access_otw(vp, NFSV3ACCESS_ALL, p, cred)))
+ return (error);
+ if ((error = nfs_getattrcache(vp, nvap)) == 0)
return (0);
if (error != ENOENT)
return (error);
error = 0;
}
-
- nfsstats.rpccnt[NFSPROC_GETATTR]++;
- nfsm_reqhead(vp, NFSPROC_GETATTR, NFSX_FH(v3));
+ avoidfloods = 0;
+tryagain:
+ nfsm_reqhead(NFSX_FH(v3));
+ if (error) {
+ FSDBG_BOT(513, np->n_size, error, np->n_vattr.nva_size, np->n_flag);
+ return (error);
+ }
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_GETATTR]);
nfsm_fhtom(vp, v3);
- nfsm_request(vp, NFSPROC_GETATTR, ap->a_p, ap->a_cred);
+ nfsm_request(vp, NFSPROC_GETATTR, p, cred, &xid);
if (!error) {
- nfsm_loadattr(vp, ap->a_vap);
- if (np->n_mtime != ap->a_vap->va_mtime.tv_sec) {
- NFSTRACE(NFSTRC_GA_INV, vp);
- if (vp->v_type == VDIR)
+ nfsm_loadattr(vp, v3, nvap, &xid);
+ if (!xid) { /* out-of-order rpc - attributes were dropped */
+ mbuf_freem(mrep);
+ mrep = NULL;
+ 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 (nfstimespeccmp(&np->n_mtime, &nvap->nva_mtime, !=)) {
+ enum vtype vtype = vnode_vtype(vp);
+ FSDBG(513, -1, np, -1, vp);
+ if (vtype == VDIR) {
nfs_invaldir(vp);
- error = nfs_vinvalbuf(vp, V_SAVE, ap->a_cred,
- ap->a_p, 1);
+ /* purge name cache entries */
+ if (nfstimespeccmp(&np->n_ncmtime, &nvap->nva_mtime, !=))
+ cache_purge(vp);
+ }
+ error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
+ FSDBG(513, -1, np, -2, error);
if (!error) {
- NFSTRACE(NFSTRC_GA_INV1, vp);
- np->n_mtime = ap->a_vap->va_mtime.tv_sec;
- } else {
- NFSTRACE(NFSTRC_GA_INV2, error);
+ if (vtype == VDIR)
+ np->n_ncmtime = nvap->nva_mtime;
+ np->n_mtime = nvap->nva_mtime;
}
}
}
nfsm_reqdone;
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 513)) | DBG_FUNC_END,
- (int)np->n_size, -1, (int)np->n_vattr.va_size, error, 0);
+ FSDBG_BOT(513, np->n_size, -1, np->n_vattr.nva_size, error);
+ return (error);
+}
+
+
+static int
+nfs_vnop_getattr(
+ struct vnop_getattr_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ struct vnode_attr *a_vap;
+ vfs_context_t a_context;
+ } */ *ap)
+{
+ int error;
+ struct nfs_vattr nva;
+ struct vnode_attr *vap = ap->a_vap;
+
+ error = nfs_getattr(ap->a_vp, &nva,
+ vfs_context_ucred(ap->a_context),
+ vfs_context_proc(ap->a_context));
+ if (error)
+ return (error);
+
+ /* copy nva to *a_vap */
+ VATTR_RETURN(vap, va_type, nva.nva_type);
+ VATTR_RETURN(vap, va_mode, nva.nva_mode);
+ VATTR_RETURN(vap, va_rdev, nva.nva_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, nva.nva_blocksize); /* should this just be f_iosize? */
+ VATTR_RETURN(vap, va_fsid, nva.nva_fsid);
+ vap->va_access_time.tv_sec = nva.nva_atime.tv_sec;
+ vap->va_access_time.tv_nsec = nva.nva_atime.tv_nsec;
+ VATTR_SET_SUPPORTED(vap, va_access_time);
+ vap->va_modify_time.tv_sec = nva.nva_mtime.tv_sec;
+ vap->va_modify_time.tv_nsec = nva.nva_mtime.tv_nsec;
+ VATTR_SET_SUPPORTED(vap, va_modify_time);
+ vap->va_change_time.tv_sec = nva.nva_ctime.tv_sec;
+ vap->va_change_time.tv_nsec = nva.nva_ctime.tv_nsec;
+ VATTR_SET_SUPPORTED(vap, va_change_time);
return (error);
}
*/
static int
nfs_setattr(ap)
- struct vop_setattr_args /* {
+ struct vnop_setattr_args /* {
struct vnodeop_desc *a_desc;
- struct vnode *a_vp;
- struct vattr *a_vap;
- struct ucred *a_cred;
- struct proc *a_p;
+ 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;
+ vnode_t vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct vnode_attr *vap = ap->a_vap;
int error = 0;
u_quad_t tsize;
+ kauth_cred_t cred;
+ proc_t p;
#ifndef nolint
tsize = (u_quad_t)0;
#endif
- /*
- * 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))
+
+ /* Setting of flags is not supported. */
+ if (VATTR_IS_ACTIVE(vap, va_flags))
+ return (ENOTSUP);
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ 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);
+
+ /* Disallow write attempts if the filesystem is mounted read-only. */
+ if ((VATTR_IS_ACTIVE(vap, va_flags) || VATTR_IS_ACTIVE(vap, va_mode) ||
+ VATTR_IS_ACTIVE(vap, va_uid) || VATTR_IS_ACTIVE(vap, va_gid) ||
+ VATTR_IS_ACTIVE(vap, va_access_time) ||
+ VATTR_IS_ACTIVE(vap, va_modify_time)) &&
+ vnode_vfsisrdonly(vp))
return (EROFS);
- if (vap->va_size != VNOVAL) {
- switch (vp->v_type) {
+
+ 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 (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)
+ 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;
+ 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);
- np->n_flag |= NMODIFIED;
- tsize = np->n_size;
-
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 512)) | DBG_FUNC_START,
- (int)np->n_size, (int)vap->va_size, (int)np->n_vattr.va_size, np->n_flag, 0);
-
- 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 (UBCISVALID(vp))
- ubc_setsize(vp, (off_t)vap->va_size); /* XXX check error */
-
- if (error) {
- printf("nfs_setattr: nfs_vinvalbuf %d\n", error);
-
-#if DIAGNOSTIC
- kprintf("nfs_setattr: nfs_vinvalbuf %d\n",
- error);
-#endif /* DIAGNOSTIC */
- if (UBCISVALID(vp))
- ubc_setsize(vp, (off_t)tsize); /* XXX check error */
-
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 512)) | DBG_FUNC_END,
- (int)np->n_size, (int)vap->va_size, (int)np->n_vattr.va_size, -1, 0);
-
- return (error);
+ FSDBG_TOP(512, np->n_size, vap->va_data_size,
+ np->n_vattr.nva_size, np->n_flag);
+ if (np->n_flag & NMODIFIED) {
+ if (vap->va_data_size == 0)
+ error = nfs_vinvalbuf(vp, 0, cred, p, 1);
+ else
+ error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 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);
+ }
+ } else if (np->n_size > vap->va_data_size) { /* shrinking? */
+ daddr64_t obn, bn;
+ int biosize, neweofoff, mustwrite;
+ struct nfsbuf *bp;
+
+ biosize = vfs_statfs(vnode_mount(vp))->f_iosize;
+ obn = (np->n_size - 1) / biosize;
+ bn = vap->va_data_size / biosize;
+ for ( ; obn >= bn; obn--) {
+ if (!nfs_buf_is_incore(vp, obn))
+ continue;
+ error = nfs_buf_get(vp, obn, biosize, 0, 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 && bp->nb_dirtyoff < neweofoff) {
+ /* clip dirty range to EOF */
+ if (bp->nb_dirtyend > neweofoff)
+ bp->nb_dirtyend = 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 (bp->nb_wcred == NOCRED) {
+ 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);
+ 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_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, cred, p, 1);
+ error = 0;
+ }
+ }
}
- np->n_size = np->n_vattr.va_size = vap->va_size;
-
- };
- } 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);
-
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 512)) | DBG_FUNC_END,
- (int)np->n_size, (int)vap->va_size, (int)np->n_vattr.va_size, error, 0);
-
- if (error && vap->va_size != VNOVAL) {
+ tsize = np->n_size;
+ np->n_size = np->n_vattr.nva_size = vap->va_data_size;
+ ubc_setsize(vp, (off_t)vap->va_data_size); /* XXX error? */
+ }
+ } else if ((VATTR_IS_ACTIVE(vap, va_modify_time) ||
+ VATTR_IS_ACTIVE(vap, va_access_time)) &&
+ (np->n_flag & NMODIFIED) && (vnode_vtype(vp) == VREG)) {
+ error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
+ if (error == EINTR)
+ return (error);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_mode)) {
+ NMODEINVALIDATE(np);
+ }
+ error = nfs_setattrrpc(vp, vap, cred, p);
+ FSDBG_BOT(512, np->n_size, vap->va_data_size, np->n_vattr.nva_size, error);
+ if (error && VATTR_IS_ACTIVE(vap, va_data_size)) {
/* make every effort to resync file size w/ server... */
- int err = 0; /* preserve "error" for return */
+ int err; /* preserve "error" for return */
- printf("nfs_setattr: nfs_setattrrpc %d\n", error);
-#if DIAGNOSTIC
- kprintf("nfs_setattr: nfs_setattrrpc %d\n", error);
-#endif /* DIAGNOSTIC */
- np->n_size = np->n_vattr.va_size = tsize;
- if (UBCISVALID(vp))
- 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 DIAGNOSTIC
- if (err)
- kprintf("nfs_setattr nfs_setattrrpc %d\n", err);
-#endif /* DIAGNOSTIC */
+ np->n_size = np->n_vattr.nva_size = tsize;
+ ubc_setsize(vp, (off_t)np->n_size); /* XXX check error */
+ vap->va_data_size = tsize;
+ err = nfs_setattrrpc(vp, vap, cred, p);
+ printf("nfs_setattr: nfs_setattrrpc %d %d\n", error, err);
}
return (error);
}
*/
static int
nfs_setattrrpc(vp, vap, cred, procp)
- register struct vnode *vp;
- register struct vattr *vap;
- struct ucred *cred;
- struct proc *procp;
+ vnode_t vp;
+ struct vnode_attr *vap;
+ kauth_cred_t cred;
+ proc_t procp;
{
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);
+ int error = 0, wccpostattr = 0;
+ mbuf_t mreq, mrep, md, mb, mb2;
+ int v3;
+ u_int64_t xid;
+ struct timeval now;
+
+ if (!VFSTONFS(vnode_mount(vp)))
+ return (ENXIO);
+ v3 = NFS_ISV3(vp);
- nfsstats.rpccnt[NFSPROC_SETATTR]++;
- nfsm_reqhead(vp, NFSPROC_SETATTR, NFSX_FH(v3) + NFSX_SATTR(v3));
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_SATTR(v3));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_SETATTR]);
nfsm_fhtom(vp, v3);
if (v3) {
- if (vap->va_mode != (u_short)VNOVAL) {
+ if (VATTR_IS_ACTIVE(vap, va_mode)) {
nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
*tl++ = nfs_true;
*tl = txdr_unsigned(vap->va_mode);
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl = nfs_false;
}
- if (vap->va_uid != (uid_t)VNOVAL) {
+ if (VATTR_IS_ACTIVE(vap, va_uid)) {
nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
*tl++ = nfs_true;
*tl = txdr_unsigned(vap->va_uid);
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl = nfs_false;
}
- if (vap->va_gid != (gid_t)VNOVAL) {
+ if (VATTR_IS_ACTIVE(vap, va_gid)) {
nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
*tl++ = nfs_true;
*tl = txdr_unsigned(vap->va_gid);
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl = nfs_false;
}
- if (vap->va_size != VNOVAL) {
+ if (VATTR_IS_ACTIVE(vap, va_data_size)) {
nfsm_build(tl, u_long *, 3 * NFSX_UNSIGNED);
*tl++ = nfs_true;
- txdr_hyper(&vap->va_size, tl);
+ txdr_hyper(&vap->va_data_size, tl);
} else {
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl = nfs_false;
}
- if (vap->va_atime.tv_sec != VNOVAL) {
- if (vap->va_atime.tv_sec != time.tv_sec) {
+ microtime(&now);
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ if (vap->va_access_time.tv_sec != now.tv_sec) {
nfsm_build(tl, u_long *, 3 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
- txdr_nfsv3time(&vap->va_atime, tl);
+ txdr_nfsv3time(&vap->va_access_time, tl);
} else {
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
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) {
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ if (vap->va_modify_time.tv_sec != now.tv_sec) {
nfsm_build(tl, u_long *, 3 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT);
- txdr_nfsv3time(&vap->va_mtime, tl);
+ txdr_nfsv3time(&vap->va_modify_time, tl);
} else {
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl = txdr_unsigned(NFSV3SATTRTIME_TOSERVER);
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl = nfs_false;
} else {
+ struct timespec neg1time = { -1, -1 };
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;
+ if (VATTR_IS_ACTIVE(vap, va_mode))
+ sp->sa_mode = vtonfsv2_mode(vnode_vtype(vp), vap->va_mode);
else
+ sp->sa_mode = nfs_xdrneg1;
+ if (VATTR_IS_ACTIVE(vap, va_uid))
sp->sa_uid = txdr_unsigned(vap->va_uid);
- if (vap->va_gid == (gid_t)VNOVAL)
- sp->sa_gid = VNOVAL;
else
+ sp->sa_uid = nfs_xdrneg1;
+ if (VATTR_IS_ACTIVE(vap, va_gid))
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);
+ else
+ sp->sa_gid = nfs_xdrneg1;
+ if (VATTR_IS_ACTIVE(vap, va_data_size))
+ sp->sa_size = txdr_unsigned(vap->va_data_size);
+ else
+ sp->sa_size = nfs_xdrneg1;
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ txdr_nfsv2time(&vap->va_access_time, &sp->sa_atime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_atime);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ txdr_nfsv2time(&vap->va_modify_time, &sp->sa_mtime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_mtime);
+ }
}
- nfsm_request(vp, NFSPROC_SETATTR, procp, cred);
+ nfsm_request(vp, NFSPROC_SETATTR, procp, cred, &xid);
if (v3) {
- nfsm_wcc_data(vp, wccflag);
- if ((!wccflag) && (vp->v_type != VBAD)) /* EINVAL set on VBAD vnode */
- VTONFS(vp)->n_attrstamp = 0;
- } else
- nfsm_loadattr(vp, (struct vattr *)0);
+ struct timespec premtime = { 0, 0 };
+ if (mrep) {
+ nfsm_wcc_data(vp, &premtime, wccpostattr, &xid);
+ }
+ /* if file hadn't changed, update cached mtime */
+ if (nfstimespeccmp(&VTONFS(vp)->n_mtime, &premtime, ==)) {
+ VTONFS(vp)->n_mtime = VTONFS(vp)->n_vattr.nva_mtime;
+ }
+ /* if directory hadn't changed, update namecache mtime */
+ if ((vnode_vtype(vp) == VDIR) &&
+ nfstimespeccmp(&VTONFS(vp)->n_ncmtime, &premtime, ==)) {
+ VTONFS(vp)->n_ncmtime = VTONFS(vp)->n_vattr.nva_mtime;
+ }
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(vp));
+ } else {
+ if (mrep) {
+ nfsm_loadattr(vp, v3, NULL, &xid);
+ }
+ }
nfsm_reqdone;
return (error);
}
*/
static int
nfs_lookup(ap)
- struct vop_lookup_args /* {
+ 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;
+ 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;
- struct nfsmount *nmp;
+ 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;
+ u_long *tl;
+ caddr_t cp;
+ long t1, t2;
caddr_t bpos, dpos, cp2;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
+ mbuf_t mreq, mrep, md, mb, mb2;
long len;
- nfsfh_t *fhp;
- struct nfsnode *np;
- int lockparent, wantparent, error = 0, attrflag, fhsize;
+ u_char *fhp;
+ struct nfsnode *dnp, *np;
+ int wantparent, error, attrflag, dattrflag, fhsize, fhisdvp;
int v3 = NFS_ISV3(dvp);
- struct proc *p = cnp->cn_proc;
- int worldbuildworkaround = 1;
+ u_int64_t xid, dxid;
+ struct nfs_vattr nvattr;
+ kauth_cred_t cred;
+ proc_t p;
+ int ngflags;
- 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;
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
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;
- if (worldbuildworkaround) {
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- }
- return (error);
- }
-
- /* got to check to make sure the vnode didn't go away if access went to server */
- if ((*vpp)->v_type == VBAD) {
- if (worldbuildworkaround) {
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- }
- return(EINVAL);
- }
+ dnp = VTONFS(dvp);
- newvp = *vpp;
- vpid = newvp->v_id;
+ error = nfs_getattr(dvp, &nvattr, cred, p);
+ if (error)
+ goto error_return;
+ if (nfstimespeccmp(&dnp->n_ncmtime, &nvattr.nva_mtime, !=)) {
/*
- * 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);
+ cache_purge(dvp);
+ dnp->n_ncmtime = nvattr.nva_mtime;
+ }
+
+ error = cache_lookup(dvp, vpp, cnp);
+ switch (error) {
+ case ENOENT:
+ /* negative cache entry same as cache miss */
+ error = 0;
+ /* FALLTHROUGH */
+ case 0:
+ /* cache miss */
+ break;
+ case -1:
+ /* cache hit, not really an error */
+ {
+ struct vnop_access_args naa;
+
+ OSAddAtomic(1, (SInt32*)&nfsstats.lookupcache_hits);
+
+ /* check for directory access */
+ naa.a_vp = dvp;
+ naa.a_action = KAUTH_VNODE_SEARCH;
+ naa.a_context = ap->a_context;
+
+ /* compute actual success/failure based on accessibility */
+ error = nfs_access(&naa);
+ }
+ /* FALLTHROUGH */
+ default:
+ /* unexpected error from cache_lookup */
+ goto error_return;
+ }
+
+ /* check for lookup of "." */
+ if ((cnp->cn_nameptr[0] == '.') && (cnp->cn_namelen == 1)) {
+ /* skip lookup, we know who we are */
+ fhisdvp = 1;
+ fhp = NULL;
+ fhsize = 0;
+ mrep = NULL;
+ goto found;
+ }
+
+ /* do we know this name is too long? */
+ if (v3) {
+ /* For NFSv3: need uniform pathconf info to test pc_namemax */
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp));
+ if (!nmp) {
+ error = ENXIO;
+ goto error_return;
}
- 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;
-
- if (worldbuildworkaround) {
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- }
-
- return (0);
- }
- cache_purge(newvp);
- }
- vput(newvp);
- if (lockparent && dvp != newvp && (flags & ISLASTCN))
- VOP_UNLOCK(dvp, 0, p);
+ if (((nmp->nm_state & (NFSSTA_GOTFSINFO|NFSSTA_GOTPATHCONF)) ==
+ (NFSSTA_GOTFSINFO|NFSSTA_GOTPATHCONF)) &&
+ (nmp->nm_fsinfo.fsproperties & NFSV3FSINFO_HOMOGENEOUS) &&
+ (cnp->cn_namelen > (long)nmp->nm_fsinfo.namemax)) {
+ error = ENAMETOOLONG;
+ goto error_return;
}
- error = vn_lock(dvp, LK_EXCLUSIVE, p);
- *vpp = NULLVP;
- if (error) {
- if (worldbuildworkaround) {
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- }
- return (error);
- }
+ } else if (cnp->cn_namelen > NFS_MAXNAMLEN) {
+ error = ENAMETOOLONG;
+ goto error_return;
}
-
- /*
- * 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) {
- if (worldbuildworkaround) {
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- vrele(dvp); /* end of hanging on tight to dvp - EKN */
- }
- return(EINVAL);
- }
error = 0;
newvp = NULLVP;
- nfsstats.lookupcache_misses++;
- nfsstats.rpccnt[NFSPROC_LOOKUP]++;
+
+ OSAddAtomic(1, (SInt32*)&nfsstats.lookupcache_misses);
len = cnp->cn_namelen;
- nfsm_reqhead(dvp, NFSPROC_LOOKUP,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len));
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len));
+ if (error)
+ goto error_return;
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_LOOKUP]);
nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN);
- nfsm_request(dvp, NFSPROC_LOOKUP, cnp->cn_proc, cnp->cn_cred);
-
- /* this two lines 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 */
- }
+ nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN, v3);
+ /* nfsm_request for NFSv2 causes you to goto to nfsmout upon errors */
+ nfsm_request(dvp, NFSPROC_LOOKUP, p, cred, &xid);
if (error) {
- nfsm_postop_attr(dvp, attrflag);
- m_freem(mrep);
+ if (mrep) {
+ nfsm_postop_attr_update(dvp, v3, dattrflag, &xid);
+ mbuf_freem(mrep);
+ }
goto nfsmout;
}
+
+ /* get the filehandle */
nfsm_getfh(fhp, fhsize, v3);
+ /* is the file handle the same as this directory's file handle? */
+ fhisdvp = NFS_CMPFH(dnp, fhp, fhsize);
+
+ /* get attributes */
+ if (v3) {
+ dxid = xid;
+ nfsm_postop_attr_get(v3, attrflag, &nvattr);
+ nfsm_postop_attr_update(dvp, v3, dattrflag, &dxid);
+ if (!attrflag && (!fhisdvp || !dattrflag)) {
+ /* We need valid attributes in order */
+ /* to call nfs_nget/vnode_create(). */
+ error = nfs_getattr_no_vnode(vnode_mount(dvp),
+ fhp, fhsize, cred, p, &nvattr, &xid);
+ if (error) {
+ mbuf_freem(mrep);
+ goto error_return;
+ }
+ }
+ } else {
+ nfsm_attr_get(v3, &nvattr);
+ }
+
+found:
/*
* Handle RENAME case...
*/
if (cnp->cn_nameiop == RENAME && wantparent && (flags & ISLASTCN)) {
- if (NFS_CMPFH(np, fhp, fhsize)) {
- m_freem(mrep);
- return (EISDIR);
+ if (fhisdvp) {
+ mbuf_freem(mrep);
+ error = EISDIR;
+ goto error_return;
}
- if ((error = nfs_nget(dvp->v_mount, fhp, fhsize, &np))) {
- m_freem(mrep);
- return (error);
+ error = nfs_nget(vnode_mount(dvp), dvp, cnp, fhp, fhsize,
+ &nvattr, &xid, 0, &np);
+ if (error) {
+ mbuf_freem(mrep);
+ goto error_return;
}
- newvp = NFSTOV(np);
- if (v3) {
- nfsm_postop_attr(newvp, attrflag);
- nfsm_postop_attr(dvp, attrflag);
- } else
- nfsm_loadattr(newvp, (struct vattr *)0);
- *vpp = newvp;
- m_freem(mrep);
- cnp->cn_flags |= SAVENAME;
- if (!lockparent)
- VOP_UNLOCK(dvp, 0, p);
- return (0);
+ *vpp = NFSTOV(np);
+ mbuf_freem(mrep);
+
+ goto error_return;
}
- if (flags & ISDOTDOT) {
- VOP_UNLOCK(dvp, 0, p);
- error = nfs_nget(dvp->v_mount, fhp, fhsize, &np);
+ if ((cnp->cn_flags & MAKEENTRY) &&
+ (cnp->cn_nameiop != DELETE || !(flags & ISLASTCN)))
+ ngflags = NG_MAKEENTRY;
+ else
+ ngflags = 0;
+
+ if (fhisdvp) {
+ error = vnode_get(dvp);
if (error) {
- vn_lock(dvp, LK_EXCLUSIVE + LK_RETRY, p);
- return (error);
- }
- newvp = NFSTOV(np);
- if (lockparent && (flags & ISLASTCN) &&
- (error = vn_lock(dvp, LK_EXCLUSIVE, p))) {
- vput(newvp);
- return (error);
+ mbuf_freem(mrep);
+ goto error_return;
}
- } else if (NFS_CMPFH(np, fhp, fhsize)) {
- VREF(dvp);
newvp = dvp;
+ /* test fhp to see if we have valid attributes in nvattr */
+ if (fhp && (dnp->n_xid <= xid)) {
+ error = nfs_loadattrcache(dnp, &nvattr, &xid, 0);
+ if (error) {
+ vnode_put(dvp);
+ mbuf_freem(mrep);
+ goto error_return;
+ }
+ }
} else {
- if ((error = nfs_nget(dvp->v_mount, fhp, fhsize, &np))) {
- m_freem(mrep);
- return (error);
+ error = nfs_nget(vnode_mount(dvp), dvp, cnp, fhp, fhsize,
+ &nvattr, &xid, ngflags, &np);
+ if (error) {
+ mbuf_freem(mrep);
+ goto error_return;
}
- if (!lockparent || !(flags & ISLASTCN))
- VOP_UNLOCK(dvp, 0, p);
newvp = NFSTOV(np);
}
- if (v3) {
- nfsm_postop_attr(newvp, attrflag);
- nfsm_postop_attr(dvp, attrflag);
- } else
- nfsm_loadattr(newvp, (struct vattr *)0);
- 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);
- }
*vpp = newvp;
+// if (error == 0 && *vpp != NULL && *vpp != dvp)
+// nfs_unlock(VTONFS(*vpp));
+
nfsm_reqdone;
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 (vnode_mount(dvp) && vnode_vfsisrdonly(dvp))
error = EROFS;
else
error = EJUSTRETURN;
}
- if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
- cnp->cn_flags |= SAVENAME;
+ }
+error_return:
+ if (error && *vpp) {
+ vnode_put(*vpp);
+ *vpp = NULLVP;
}
return (error);
}
*/
static int
nfs_read(ap)
- struct vop_read_args /* {
- struct vnode *a_vp;
+ struct vnop_read_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
+ 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(ap->a_vp, ap->a_uio, ap->a_ioflag,
+ vfs_context_ucred(ap->a_context),
+ vfs_context_proc(ap->a_context)));
}
+
/*
* nfs readlink call
*/
static int
nfs_readlink(ap)
- struct vop_readlink_args /* {
- struct vnode *a_vp;
+ struct vnop_readlink_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- struct ucred *a_cred;
+ vfs_context_t a_context;
} */ *ap;
{
- register struct vnode *vp = ap->a_vp;
-
- 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));
+ return (nfs_bioread(ap->a_vp, ap->a_uio, 0,
+ vfs_context_ucred(ap->a_context),
+ vfs_context_proc(ap->a_context)));
}
/*
* Called by nfs_doio() from below the buffer cache.
*/
int
-nfs_readlinkrpc(vp, uiop, cred)
- register struct vnode *vp;
- struct uio *uiop;
- struct ucred *cred;
+nfs_readlinkrpc(
+ vnode_t vp,
+ struct uio *uiop,
+ kauth_cred_t cred,
+ proc_t p)
{
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);
+ mbuf_t mreq, mrep, md, mb, mb2;
+ int v3;
+ u_int64_t xid;
- nfsstats.rpccnt[NFSPROC_READLINK]++;
- nfsm_reqhead(vp, NFSPROC_READLINK, NFSX_FH(v3));
+ if (!VFSTONFS(vnode_mount(vp)))
+ return (ENXIO);
+ v3 = NFS_ISV3(vp);
+
+ nfsm_reqhead(NFSX_FH(v3));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_READLINK]);
nfsm_fhtom(vp, v3);
- nfsm_request(vp, NFSPROC_READLINK, uiop->uio_procp, cred);
- if (v3)
- nfsm_postop_attr(vp, attrflag);
+ nfsm_request(vp, NFSPROC_READLINK, p, cred, &xid);
+ if (v3 && mrep)
+ nfsm_postop_attr_update(vp, v3, attrflag, &xid);
if (!error) {
- nfsm_strsiz(len, NFS_MAXPATHLEN);
- if (len == NFS_MAXPATHLEN) {
- struct nfsnode *np = VTONFS(vp);
+ nfsm_strsiz(len, NFS_MAXPATHLEN, v3);
+ if (len >= NFS_MAXPATHLEN) {
+ struct nfsnode *np = VTONFS(vp);
#if DIAGNOSTIC
if (!np)
panic("nfs_readlinkrpc: null np");
* Ditto above
*/
int
-nfs_readrpc(vp, uiop, cred)
- register struct vnode *vp;
- struct uio *uiop;
- struct ucred *cred;
+nfs_readrpc(
+ vnode_t vp,
+ struct uio *uiop,
+ kauth_cred_t cred,
+ proc_t p)
{
register u_long *tl;
register caddr_t cp;
register long t1, t2;
caddr_t bpos, dpos, cp2;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
+ mbuf_t mreq, mrep, md, mb, mb2;
struct nfsmount *nmp;
- int error = 0, len, retlen, tsiz, eof, attrflag;
- int v3 = NFS_ISV3(vp);
-
-#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, len, retlen, tsiz, eof = 0, attrflag;
+ int v3, nmrsize;
+ u_int64_t xid;
+
+ FSDBG_TOP(536, vp, uiop->uio_offset, uio_uio_resid(uiop), 0);
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ v3 = NFS_ISV3(vp);
+ nmrsize = nmp->nm_rsize;
+
+ // LP64todo - fix this
+ tsiz = uio_uio_resid(uiop);
+ if (((u_int64_t)uiop->uio_offset + (unsigned int)tsiz > 0xffffffff) && !v3) {
+ FSDBG_BOT(536, vp, uiop->uio_offset, uio_uio_resid(uiop), EFBIG);
return (EFBIG);
+ }
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);
+ len = (tsiz > nmrsize) ? nmrsize : tsiz;
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_UNSIGNED * 3);
+ if (error)
+ break;
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_READ]);
nfsm_fhtom(vp, v3);
nfsm_build(tl, u_long *, NFSX_UNSIGNED * 3);
if (v3) {
*tl++ = txdr_unsigned(len);
*tl = 0;
}
- nfsm_request(vp, NFSPROC_READ, uiop->uio_procp, cred);
+ FSDBG(536, vp, uiop->uio_offset, len, 0);
+ nfsm_request(vp, NFSPROC_READ, p, cred, &xid);
if (v3) {
- nfsm_postop_attr(vp, attrflag);
+ if (mrep) {
+ nfsm_postop_attr_update(vp, v3, attrflag, &xid);
+ }
if (error) {
- m_freem(mrep);
+ mbuf_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);
- nfsm_strsiz(retlen, nmp->nm_rsize);
- nfsm_mtouio(uiop, retlen);
- m_freem(mrep);
+ } else {
+ if (mrep) {
+ nfsm_loadattr(vp, v3, NULL, &xid);
+ }
+ }
+ if (mrep) {
+ nfsm_strsiz(retlen, nmrsize, 0);
+ nfsm_mtouio(uiop, retlen);
+ mbuf_freem(mrep);
+ } else {
+ retlen = 0;
+ }
tsiz -= retlen;
if (v3) {
if (eof || retlen == 0)
tsiz = 0;
}
nfsmout:
+ FSDBG_BOT(536, vp, eof, uio_uio_resid(uiop), error);
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;
+nfs_writerpc(
+ vnode_t vp,
+ struct uio *uiop,
+ kauth_cred_t cred,
+ proc_t p,
+ int *iomode,
+ uint64_t *wverfp)
{
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;
+ mbuf_t mreq, mrep, md, mb, mb2;
+ struct nfsmount *nmp;
+ int error = 0, len, tsiz, updatemtime = 0, wccpostattr = 0, rlen, commit;
+ int v3, committed = NFSV3WRITE_FILESYNC;
+ u_int64_t xid, wverf;
+ mount_t mp;
#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)
+ FSDBG_TOP(537, vp, uiop->uio_offset, uio_uio_resid(uiop), *iomode);
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ v3 = NFS_ISV3(vp);
+ // LP64todo - fix this
+ tsiz = uio_uio_resid(uiop);
+ if (((u_int64_t)uiop->uio_offset + (unsigned int)tsiz > 0xffffffff) && !v3) {
+ FSDBG_BOT(537, vp, uiop->uio_offset, uio_uio_resid(uiop), EFBIG);
return (EFBIG);
+ }
while (tsiz > 0) {
- nfsstats.rpccnt[NFSPROC_WRITE]++;
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp) {
+ error = ENXIO;
+ break;
+ }
len = (tsiz > nmp->nm_wsize) ? nmp->nm_wsize : tsiz;
- nfsm_reqhead(vp, NFSPROC_WRITE,
- NFSX_FH(v3) + 5 * NFSX_UNSIGNED + nfsm_rndup(len));
+ nfsm_reqhead(NFSX_FH(v3) + 5 * NFSX_UNSIGNED + nfsm_rndup(len));
+ if (error)
+ break;
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_WRITE]);
nfsm_fhtom(vp, v3);
if (v3) {
nfsm_build(tl, u_long *, 5 * NFSX_UNSIGNED);
tl += 2;
}
*tl = txdr_unsigned(len);
+ FSDBG(537, vp, uiop->uio_offset, len, 0);
nfsm_uiotom(uiop, len);
- nfsm_request(vp, NFSPROC_WRITE, uiop->uio_procp, cred);
+ nfsm_request(vp, NFSPROC_WRITE, p, cred, &xid);
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ error = ENXIO;
if (v3) {
- wccflag = NFSV3_WCCCHK;
- nfsm_wcc_data(vp, wccflag);
+ if (mrep) {
+ struct timespec premtime;
+ nfsm_wcc_data(vp, &premtime, wccpostattr, &xid);
+ if (nfstimespeccmp(&VTONFS(vp)->n_mtime, &premtime, ==))
+ updatemtime = 1;
+ }
if (!error) {
nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED +
NFSX_V3WRITEVERF);
break;
} else if (rlen < len) {
backup = len - rlen;
- uiop->uio_iov->iov_base -= backup;
- uiop->uio_iov->iov_len += backup;
+ uio_iov_base_add(uiop, -backup);
+ uio_iov_len_add(uiop, backup);
uiop->uio_offset -= backup;
- uiop->uio_resid += backup;
+ uio_uio_resid_add(uiop, backup);
len = rlen;
}
commit = fxdr_unsigned(int, *tl++);
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);
+ fxdr_hyper(tl, &wverf);
+ if (wverfp)
+ *wverfp = wverf;
+ if ((nmp->nm_state & NFSSTA_HASWRITEVERF) == 0) {
+ nmp->nm_verf = wverf;
+ nmp->nm_state |= NFSSTA_HASWRITEVERF;
+ } else if (wverf != nmp->nm_verf) {
+ nmp->nm_verf = wverf;
}
}
- } else
- nfsm_loadattr(vp, (struct vattr *)0);
- if ((wccflag) && (vp->v_type != VBAD)) /* EINVAL set on VBAD vnode */
- 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;
+ } else {
+ if (mrep) {
+ nfsm_loadattr(vp, v3, NULL, &xid);
+ }
+ }
+
+ if (updatemtime)
+ VTONFS(vp)->n_mtime = VTONFS(vp)->n_vattr.nva_mtime;
+ mbuf_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;
}
nfsmout:
- /* does it make sense to even say it was committed if we had an error? EKN */
- /* 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))
+ if ((mp = vnode_mount(vp)) && (vfs_flags(mp) & MNT_ASYNC))
committed = NFSV3WRITE_FILESYNC;
*iomode = committed;
if (error)
- uiop->uio_resid = tsiz;
+ uio_uio_resid_set(uiop, tsiz);
+ FSDBG_BOT(537, vp, committed, uio_uio_resid(uiop), error);
return (error);
}
* mode set to specify the file type and the size field for rdev.
*/
static int
-nfs_mknodrpc(dvp, vpp, cnp, vap)
- register struct vnode *dvp;
- register struct vnode **vpp;
- register struct componentname *cnp;
- register struct vattr *vap;
+nfs_mknodrpc(
+ vnode_t dvp,
+ vnode_t *vpp,
+ struct componentname *cnp,
+ struct vnode_attr *vap,
+ kauth_cred_t cred,
+ proc_t p)
{
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;
+ vnode_t newvp = (vnode_t)0;
struct nfsnode *np = (struct nfsnode *)0;
- struct vattr vattr;
+ struct nfs_vattr nvattr;
char *cp2;
caddr_t bpos, dpos;
- int error = 0, wccflag = NFSV3_WCCRATTR, gotvp = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
+ int error = 0, wccpostattr = 0, gotvp = 0;
+ struct timespec premtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
u_long rdev;
+ u_int64_t xid;
int v3 = NFS_ISV3(dvp);
+ int gotuid, gotgid;
- if (vap->va_type == VCHR || vap->va_type == VBLK)
+ 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 = txdr_unsigned(vap->va_rdev);
- else if (vap->va_type == VFIFO || vap->va_type == VSOCK)
+ } else if (vap->va_type == VFIFO || vap->va_type == VSOCK)
rdev = 0xffffffff;
else {
- VOP_ABORTOP(dvp, cnp);
- vput(dvp);
- return (EOPNOTSUPP);
+ return (ENOTSUP);
}
- if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
- VOP_ABORTOP(dvp, cnp);
- vput(dvp);
+ nfsm_reqhead(NFSX_FH(v3) + 4 * NFSX_UNSIGNED +
+ nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(v3));
+ if (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));
+
+ 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);
+
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_MKNOD]);
nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
+ nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN, v3);
if (v3) {
- nfsm_build(tl, u_long *, NFSX_UNSIGNED + NFSX_V3SRVSATTR);
+ nfsm_build(tl, u_long *, NFSX_UNSIGNED);
*tl++ = vtonfsv3_type(vap->va_type);
- sp3 = (struct nfsv3_sattr *)tl;
- nfsm_v3sattr(sp3, vap, cnp->cn_cred->cr_uid, vattr.va_gid);
+ nfsm_v3sattr(vap);
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));
}
} else {
+ struct timespec neg1time = { -1, -1 };
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_mode = vtonfsv2_mode(vap->va_type,
+ (VATTR_IS_ACTIVE(vap, va_mode) ? vap->va_mode : 0600));
+ sp->sa_uid = gotuid ? (u_long)txdr_unsigned(vap->va_uid) : nfs_xdrneg1;
+ sp->sa_gid = gotgid ? (u_long)txdr_unsigned(vap->va_gid) : nfs_xdrneg1;
sp->sa_size = rdev;
- txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
- txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ txdr_nfsv2time(&vap->va_access_time, &sp->sa_atime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_atime);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ txdr_nfsv2time(&vap->va_modify_time, &sp->sa_mtime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_mtime);
+ }
}
- nfsm_request(dvp, NFSPROC_MKNOD, cnp->cn_proc, cnp->cn_cred);
+ nfsm_request(dvp, NFSPROC_MKNOD, p, cred, &xid);
+ /* XXX no EEXIST kludge here? */
if (!error) {
- nfsm_mtofh(dvp, newvp, v3, gotvp);
+ nfsm_mtofh(dvp, cnp, newvp, v3, &xid, gotvp);
if (!gotvp) {
- if (newvp) {
- vput(newvp);
- newvp = (struct vnode *)0;
- }
error = nfs_lookitup(dvp, cnp->cn_nameptr,
- cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc, &np);
+ cnp->cn_namelen, cred, p, &np);
if (!error)
newvp = NFSTOV(np);
}
}
- if (v3)
- nfsm_wcc_data(dvp, wccflag);
+ if (v3 && mrep)
+ nfsm_wcc_data(dvp, &premtime, wccpostattr, &xid);
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(newvp, &nvattr) ||
+ (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);
+ }
nfsm_reqdone;
if (error) {
if (newvp)
- vput(newvp);
+ vnode_put(newvp);
} else {
- if (cnp->cn_flags & MAKEENTRY)
- cache_enter(dvp, newvp, cnp);
*vpp = 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);
+ VTONFS(dvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(dvp)->n_ncmtime, &premtime, ==))
+ VTONFS(dvp)->n_ncmtime = VTONFS(dvp)->n_vattr.nva_mtime;
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(dvp));
return (error);
}
/* ARGSUSED */
static int
nfs_mknod(ap)
- struct vop_mknod_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+ 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;
+ struct vnode_attr *a_vap;
+ vfs_context_t a_context;
} */ *ap;
{
- struct vnode *newvp;
int error;
- error = nfs_mknodrpc(ap->a_dvp, &newvp, ap->a_cnp, ap->a_vap);
- if (!error)
- vput(newvp);
+ error = nfs_mknodrpc(ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap,
+ vfs_context_ucred(ap->a_context),
+ vfs_context_proc(ap->a_context));
+
return (error);
}
*/
static int
nfs_create(ap)
- struct vop_create_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+ 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;
+ 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;
+ vnode_t dvp = ap->a_dvp;
+ struct vnode_attr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfs_vattr nvattr;
+ struct nfsv2_sattr *sp;
+ u_long *tl;
+ caddr_t cp;
+ long t1, t2;
struct nfsnode *np = (struct nfsnode *)0;
- struct vnode *newvp = (struct vnode *)0;
+ vnode_t newvp = (vnode_t)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 error = 0, wccpostattr = 0, gotvp = 0, fmode = 0;
+ struct timespec premtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
int v3 = NFS_ISV3(dvp);
+ int gotuid, gotgid;
+ u_int64_t xid;
+ kauth_cred_t cred;
+ proc_t p;
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ if (!VATTR_IS_ACTIVE(vap, va_type))
+ return (EINVAL);
/*
* Oops, not for me..
*/
if (vap->va_type == VSOCK)
- return (nfs_mknodrpc(dvp, ap->a_vpp, cnp, vap));
+ return (nfs_mknodrpc(dvp, ap->a_vpp, cnp, vap, cred, p));
+
+ 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_reqhead(NFSX_FH(v3) + 2 * NFSX_UNSIGNED +
nfsm_rndup(cnp->cn_namelen) + NFSX_SATTR(v3));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_CREATE]);
nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
+ nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN, v3);
if (v3) {
nfsm_build(tl, u_long *, NFSX_UNSIGNED);
if (fmode & O_EXCL) {
*tl = ++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_v3sattr(vap);
}
} else {
+ struct timespec neg1time = { -1, -1 };
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_mode = vtonfsv2_mode(vap->va_type,
+ (VATTR_IS_ACTIVE(vap, va_mode) ? vap->va_mode : 0600));
+ sp->sa_uid = gotuid ? (u_long)txdr_unsigned(vap->va_uid) : nfs_xdrneg1;
+ sp->sa_gid = gotgid ? (u_long)txdr_unsigned(vap->va_gid) : nfs_xdrneg1;
sp->sa_size = 0;
- txdr_nfsv2time(&vap->va_atime, &sp->sa_atime);
- txdr_nfsv2time(&vap->va_mtime, &sp->sa_mtime);
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ txdr_nfsv2time(&vap->va_access_time, &sp->sa_atime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_atime);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ txdr_nfsv2time(&vap->va_modify_time, &sp->sa_mtime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_mtime);
+ }
}
- nfsm_request(dvp, NFSPROC_CREATE, cnp->cn_proc, cnp->cn_cred);
+ nfsm_request(dvp, NFSPROC_CREATE, p, cred, &xid);
if (!error) {
- nfsm_mtofh(dvp, newvp, v3, gotvp);
+ nfsm_mtofh(dvp, cnp, newvp, v3, &xid, gotvp);
if (!gotvp) {
- if (newvp) {
- vput(newvp);
- newvp = (struct vnode *)0;
- }
error = nfs_lookitup(dvp, cnp->cn_nameptr,
- cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc, &np);
+ cnp->cn_namelen, cred, p, &np);
if (!error)
newvp = NFSTOV(np);
}
}
- if (v3)
- nfsm_wcc_data(dvp, wccflag);
+ if (v3 && mrep)
+ nfsm_wcc_data(dvp, &premtime, wccpostattr, &xid);
nfsm_reqdone;
if (error) {
if (v3 && (fmode & O_EXCL) && error == NFSERR_NOTSUPP) {
goto again;
}
if (newvp)
- vput(newvp);
- } else if (v3 && (fmode & O_EXCL))
- error = nfs_setattrrpc(newvp, vap, cnp->cn_cred, cnp->cn_proc);
+ vnode_put(newvp);
+ } else if (v3 && (fmode & O_EXCL)) {
+ error = nfs_setattrrpc(newvp, vap, cred, p);
+ 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 = nfs_setattrrpc(newvp, vap, cred, p);
+ }
+ if (error)
+ vnode_put(newvp);
+ }
if (!error) {
- if (cnp->cn_flags & MAKEENTRY)
- cache_enter(dvp, newvp, cnp);
*ap->a_vpp = 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);
+ VTONFS(dvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(dvp)->n_ncmtime, &premtime, ==))
+ VTONFS(dvp)->n_ncmtime = VTONFS(dvp)->n_vattr.nva_mtime;
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(dvp));
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(newvp, &nvattr) ||
+ (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);
+ }
return (error);
}
* 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
*/
static int
nfs_remove(ap)
- struct vop_remove_args /* {
+ struct vnop_remove_args /* {
struct vnodeop_desc *a_desc;
- struct vnode * a_dvp;
- struct vnode * a_vp;
- struct componentname * a_cnp;
+ 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;
- struct vattr vattr;
- int file_deleted = 0;
-
-#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
- if (vp->v_usecount == 1 ||
- (UBCISVALID(vp)&&(vp->v_usecount==2)) ||
- (np->n_sillyrename &&
- VOP_GETATTR(vp, &vattr, cnp->cn_cred, cnp->cn_proc) == 0 &&
- vattr.va_nlink > 1)) {
+ vnode_t vp = ap->a_vp;
+ vnode_t dvp = ap->a_dvp;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfsnode *np = VTONFS(vp);
+ int error = 0, gofree = 0;
+ struct nfs_vattr nvattr;
+ kauth_cred_t cred;
+ proc_t p;
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ gofree = vnode_isinuse(vp, 0) ? 0 : 1;
+ if ((ap->a_flags & VNODE_REMOVE_NODELETEBUSY) && !gofree) {
+ /* Caller requested Carbon delete semantics, but file is busy */
+ return (EBUSY);
+ }
+ if (gofree || (np->n_sillyrename &&
+ nfs_getattr(vp, &nvattr, cred, p) == 0 &&
+ nvattr.nva_nlink > 1)) {
/*
* 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);
- ubc_setsize(vp, (off_t)0);
+ error = nfs_vinvalbuf(vp, 0, cred, p, 1);
+ np->n_size = 0;
+ ubc_setsize(vp, (off_t)0); /* XXX check error */
/* Do the rpc */
if (error != EINTR)
error = nfs_removerpc(dvp, cnp->cn_nameptr,
- cnp->cn_namelen, cnp->cn_cred, cnp->cn_proc);
+ cnp->cn_namelen, cred, p);
/*
* 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;
- file_deleted = 1;
+ 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);
+ LIST_REMOVE(np, n_hash);
+ np->n_flag &= ~NHASHED;
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ }
+ if (!error && !np->n_sillyrename) {
+ /* clear flags now: won't get nfs_inactive for recycled vnode */
+ /* clear all flags other than these */
+ np->n_flag &= (NMODIFIED | NFLUSHINPROG | NFLUSHWANT | NHASHED);
+ vnode_recycle(vp);
+ }
} else if (!np->n_sillyrename) {
- error = nfs_sillyrename(dvp, vp, cnp);
- }
-
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- np->n_attrstamp = 0;
- vput(dvp);
-
-
- if (vp == dvp)
- vrele(vp);
- else
- vput(vp);
-
- if (file_deleted && UBCINFOEXISTS(vp)) {
- (void) ubc_uncache(vp);
- ubc_release(vp);
- /* WARNING vp may not be valid after this */
+ error = nfs_sillyrename(dvp, vp, cnp, cred, p);
}
+ NATTRINVALIDATE(np);
return (error);
}
* nfs file remove rpc called from nfs_inactive
*/
int
-nfs_removeit(sp)
- register struct sillyrename *sp;
+nfs_removeit(struct sillyrename *sp)
{
-
- return (nfs_removerpc(sp->s_dvp, sp->s_name, sp->s_namlen, sp->s_cred,
- (struct proc *)0));
+ return (nfs_removerpc(sp->s_dvp, sp->s_name, sp->s_namlen, sp->s_cred, NULL));
}
/*
*/
static int
nfs_removerpc(dvp, name, namelen, cred, proc)
- register struct vnode *dvp;
+ vnode_t dvp;
char *name;
int namelen;
- struct ucred *cred;
- struct proc *proc;
+ kauth_cred_t cred;
+ proc_t proc;
{
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, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
+ int v3;
+ u_int64_t xid;
- nfsstats.rpccnt[NFSPROC_REMOVE]++;
- nfsm_reqhead(dvp, NFSPROC_REMOVE,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(namelen));
+ if (!VFSTONFS(vnode_mount(dvp)))
+ return (ENXIO);
+ v3 = NFS_ISV3(dvp);
+
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(namelen));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_REMOVE]);
nfsm_fhtom(dvp, v3);
- nfsm_strtom(name, namelen, NFS_MAXNAMLEN);
- nfsm_request(dvp, NFSPROC_REMOVE, proc, cred);
- if (v3)
- nfsm_wcc_data(dvp, wccflag);
+ nfsm_strtom(name, namelen, NFS_MAXNAMLEN, v3);
+ nfsm_request(dvp, NFSPROC_REMOVE, proc, cred, &xid);
+ if (v3 && mrep)
+ nfsm_wcc_data(dvp, &premtime, wccpostattr, &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;
- }
+ VTONFS(dvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(dvp)->n_ncmtime, &premtime, ==))
+ VTONFS(dvp)->n_ncmtime = VTONFS(dvp)->n_vattr.nva_mtime;
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(dvp));
return (error);
}
*/
static int
nfs_rename(ap)
- struct vop_rename_args /* {
- struct vnode *a_fdvp;
- struct vnode *a_fvp;
+ 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;
+ 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;
+ vnode_t fvp = ap->a_fvp;
+ vnode_t tvp = ap->a_tvp;
+ vnode_t fdvp = ap->a_fdvp;
+ vnode_t tdvp = ap->a_tdvp;
+ struct componentname *tcnp = ap->a_tcnp;
+ struct componentname *fcnp = ap->a_fcnp;
+ int error, inuse=0;
+ mount_t fmp, tdmp, tmp;
+ struct nfsnode *tnp;
+ kauth_cred_t cred;
+ proc_t p;
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ tnp = tvp ? VTONFS(tvp) : NULL;
-#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;
goto out;
}
* If the tvp exists and is in use, sillyrename it before doing the
* rename of the new file over it.
* XXX Can't sillyrename a directory.
+ * Don't sillyrename if source and target are same vnode (hard
+ * links or case-variants)
*/
- if (tvp && (tvp->v_usecount>(UBCISVALID(tvp) ? 2 : 1)) &&
- !VTONFS(tvp)->n_sillyrename &&
- tvp->v_type != VDIR && !nfs_sillyrename(tdvp, tvp, tcnp)) {
- vput(tvp);
- tvp = NULL;
+ if (tvp && tvp != fvp) {
+ inuse = vnode_isinuse(tvp, 0);
+ }
+ if (inuse && !tnp->n_sillyrename && vnode_vtype(tvp) != VDIR) {
+ if ((error = nfs_sillyrename(tdvp, tvp, tcnp, cred, p))) {
+ /* sillyrename failed. Instead of pressing on, return error */
+ goto out; /* should not be ENOENT. */
+ } else {
+ /* sillyrename succeeded.*/
+ 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);
+ tdvp, tcnp->cn_nameptr, tcnp->cn_namelen, cred, p);
+
+ /*
+ * Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
+ */
+ if (error == ENOENT)
+ error = 0;
- if (fvp->v_type == VDIR) {
- if (tvp != NULL && tvp->v_type == VDIR)
- cache_purge(tdvp);
- cache_purge(fdvp);
+ if (!error && tvp && tvp != fvp && !tnp->n_sillyrename) {
+ /*
+ * 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);
+ LIST_REMOVE(tnp, n_hash);
+ tnp->n_flag &= ~NHASHED;
+ lck_mtx_unlock(nfs_node_hash_mutex);
}
+
+ /* purge the old name cache entries and enter the new one */
+ cache_purge(fvp);
+ if (tvp) {
+ cache_purge(tvp);
+ if (!error && !tnp->n_sillyrename) {
+ /* clear flags now: won't get nfs_inactive for recycled vnode */
+ /* clear all flags other than these */
+ tnp->n_flag &= (NMODIFIED | NFLUSHINPROG | NFLUSHWANT | NHASHED);
+ vnode_recycle(tvp);
+ }
+ }
+ if (!error)
+ cache_enter(tdvp, fvp, tcnp);
+
out:
- if (tdvp == tvp)
- vrele(tdvp);
- else
- vput(tdvp);
- if (tvp)
- vput(tvp);
- vrele(fdvp);
- vrele(fvp);
/*
* Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
*/
}
/*
- * nfs file rename rpc called from nfs_remove() above
- */
-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().
+ * Do an nfs rename rpc. Called from nfs_rename() and nfs_sillyrename().
*/
static int
nfs_renamerpc(fdvp, fnameptr, fnamelen, tdvp, tnameptr, tnamelen, cred, proc)
- register struct vnode *fdvp;
+ vnode_t fdvp;
char *fnameptr;
int fnamelen;
- register struct vnode *tdvp;
+ vnode_t tdvp;
char *tnameptr;
int tnamelen;
- struct ucred *cred;
- struct proc *proc;
+ kauth_cred_t cred;
+ proc_t proc;
{
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);
-
- nfsstats.rpccnt[NFSPROC_RENAME]++;
- nfsm_reqhead(fdvp, NFSPROC_RENAME,
- (NFSX_FH(v3) + NFSX_UNSIGNED)*2 + nfsm_rndup(fnamelen) +
- nfsm_rndup(tnamelen));
+ int error = 0, fwccpostattr = 0, twccpostattr = 0;
+ struct timespec fpremtime = { 0, 0 }, tpremtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
+ int v3;
+ u_int64_t xid;
+
+ if (!VFSTONFS(vnode_mount(fdvp)))
+ return (ENXIO);
+ v3 = NFS_ISV3(fdvp);
+
+ nfsm_reqhead((NFSX_FH(v3) + NFSX_UNSIGNED)*2 + nfsm_rndup(fnamelen) +
+ nfsm_rndup(tnamelen));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_RENAME]);
nfsm_fhtom(fdvp, v3);
- nfsm_strtom(fnameptr, fnamelen, NFS_MAXNAMLEN);
+ nfsm_strtom(fnameptr, fnamelen, NFS_MAXNAMLEN, v3);
nfsm_fhtom(tdvp, v3);
- nfsm_strtom(tnameptr, tnamelen, NFS_MAXNAMLEN);
- nfsm_request(fdvp, NFSPROC_RENAME, proc, cred);
- if (v3) {
- nfsm_wcc_data(fdvp, fwccflag);
- nfsm_wcc_data(tdvp, twccflag);
+ nfsm_strtom(tnameptr, tnamelen, NFS_MAXNAMLEN, v3);
+ nfsm_request(fdvp, NFSPROC_RENAME, proc, cred, &xid);
+ if (v3 && mrep) {
+ u_int64_t txid = xid;
+
+ nfsm_wcc_data(fdvp, &fpremtime, fwccpostattr, &xid);
+ nfsm_wcc_data(tdvp, &tpremtime, twccpostattr, &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;
- }
+ VTONFS(fdvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(fdvp)->n_ncmtime, &fpremtime, ==))
+ VTONFS(fdvp)->n_ncmtime = VTONFS(fdvp)->n_vattr.nva_mtime;
+ if (!fwccpostattr)
+ NATTRINVALIDATE(VTONFS(fdvp));
+ VTONFS(tdvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(tdvp)->n_ncmtime, &tpremtime, ==))
+ VTONFS(tdvp)->n_ncmtime = VTONFS(tdvp)->n_vattr.nva_mtime;
+ if (!twccpostattr)
+ NATTRINVALIDATE(VTONFS(tdvp));
return (error);
}
*/
static int
nfs_link(ap)
- struct vop_link_args /* {
- struct vnode *a_vp;
- struct vnode *a_tdvp;
+ struct vnop_link_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ vnode_t a_tdvp;
struct componentname *a_cnp;
+ 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;
+ vnode_t vp = ap->a_vp;
+ vnode_t tdvp = ap->a_tdvp;
+ struct componentname *cnp = ap->a_cnp;
+ u_long *tl;
+ caddr_t cp;
+ 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);
-
- if (vp->v_mount != tdvp->v_mount) {
- VOP_ABORTOP(vp, cnp);
- if (tdvp == vp)
- vrele(tdvp);
- else
- vput(tdvp);
+ int error = 0, wccpostattr = 0, attrflag = 0;
+ struct timespec premtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
+ int v3;
+ u_int64_t xid;
+ kauth_cred_t cred;
+ proc_t p;
+
+ if (vnode_mount(vp) != vnode_mount(tdvp)) {
return (EXDEV);
}
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ v3 = NFS_ISV3(vp);
+
/*
* 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);
+ nfs_flush(vp, MNT_WAIT, cred, p, 0);
- nfsstats.rpccnt[NFSPROC_LINK]++;
- nfsm_reqhead(vp, NFSPROC_LINK,
- NFSX_FH(v3)*2 + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
+ nfsm_reqhead(NFSX_FH(v3)*2 + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_LINK]);
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);
- if (v3) {
- nfsm_postop_attr(vp, attrflag);
- nfsm_wcc_data(tdvp, wccflag);
+ nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN, v3);
+ nfsm_request(vp, NFSPROC_LINK, p, cred, &xid);
+ if (v3 && mrep) {
+ u_int64_t txid = xid;
+
+ nfsm_postop_attr_update(vp, v3, attrflag, &xid);
+ nfsm_wcc_data(tdvp, &premtime, wccpostattr, &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);
+ if (!attrflag)
+ NATTRINVALIDATE(VTONFS(vp));
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(tdvp)->n_ncmtime, &premtime, ==))
+ VTONFS(tdvp)->n_ncmtime = VTONFS(tdvp)->n_vattr.nva_mtime;
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(tdvp));
/*
* Kludge: Map EEXIST => 0 assuming that it is a reply to a retry.
*/
*/
static int
nfs_symlink(ap)
- struct vop_symlink_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+ struct vnop_symlink_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_dvp;
+ vnode_t *a_vpp;
struct componentname *a_cnp;
- struct vattr *a_vap;
+ struct vnode_attr *a_vap;
char *a_target;
+ 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;
+ vnode_t dvp = ap->a_dvp;
+ struct vnode_attr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfs_vattr nvattr;
+ struct nfsv2_sattr *sp;
+ u_long *tl;
+ caddr_t cp;
+ 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 slen, error = 0, wccpostattr = 0, gotvp = 0;
+ struct timespec premtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
+ vnode_t newvp = (vnode_t)0;
int v3 = NFS_ISV3(dvp);
+ int gotuid, gotgid;
+ u_int64_t xid;
+ kauth_cred_t cred;
+ proc_t p;
+ struct nfsnode *np = NULL;
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
- nfsstats.rpccnt[NFSPROC_SYMLINK]++;
slen = strlen(ap->a_target);
- nfsm_reqhead(dvp, NFSPROC_SYMLINK, NFSX_FH(v3) + 2*NFSX_UNSIGNED +
+ nfsm_reqhead(NFSX_FH(v3) + 2*NFSX_UNSIGNED +
nfsm_rndup(cnp->cn_namelen) + nfsm_rndup(slen) + NFSX_SATTR(v3));
+ if (error)
+ return (error);
+
+ 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);
+
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_SYMLINK]);
nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN);
+ nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN, v3);
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_v3sattr(vap);
}
- nfsm_strtom(ap->a_target, slen, NFS_MAXPATHLEN);
+ nfsm_strtom(ap->a_target, slen, NFS_MAXPATHLEN, v3);
if (!v3) {
+ struct timespec neg1time = { -1, -1 };
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);
+ sp->sa_mode = vtonfsv2_mode(VLNK,
+ (VATTR_IS_ACTIVE(vap, va_mode) ? vap->va_mode : 0600));
+ sp->sa_uid = gotuid ? (u_long)txdr_unsigned(vap->va_uid) : nfs_xdrneg1;
+ sp->sa_gid = gotgid ? (u_long)txdr_unsigned(vap->va_gid) : nfs_xdrneg1;
+ sp->sa_size = nfs_xdrneg1;
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ txdr_nfsv2time(&vap->va_access_time, &sp->sa_atime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_atime);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ txdr_nfsv2time(&vap->va_modify_time, &sp->sa_mtime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_mtime);
+ }
}
- nfsm_request(dvp, NFSPROC_SYMLINK, cnp->cn_proc, cnp->cn_cred);
- if (v3) {
+ nfsm_request(dvp, NFSPROC_SYMLINK, p, cred, &xid);
+ if (v3 && mrep) {
+ u_int64_t dxid = xid;
+
if (!error)
- nfsm_mtofh(dvp, newvp, v3, gotvp);
- nfsm_wcc_data(dvp, wccflag);
+ nfsm_mtofh(dvp, cnp, newvp, v3, &xid, gotvp);
+ nfsm_wcc_data(dvp, &premtime, wccpostattr, &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);
+
+ VTONFS(dvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(dvp)->n_ncmtime, &premtime, ==))
+ VTONFS(dvp)->n_ncmtime = VTONFS(dvp)->n_vattr.nva_mtime;
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(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 && !gotvp)) {
+ if (newvp) {
+ vnode_put(newvp);
+ newvp = NULL;
+ }
+ error = nfs_lookitup(dvp, cnp->cn_nameptr, cnp->cn_namelen, cred, p, &np);
+ if (!error) {
+ newvp = NFSTOV(np);
+ if (vnode_vtype(newvp) != VLNK)
+ error = EEXIST;
+ }
+ }
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(newvp, &nvattr) ||
+ (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)
+ vnode_put(newvp);
+ } else {
+ *ap->a_vpp = newvp;
+ }
return (error);
}
*/
static int
nfs_mkdir(ap)
- struct vop_mkdir_args /* {
- struct vnode *a_dvp;
- struct vnode **a_vpp;
+ 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;
+ 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;
+ vnode_t dvp = ap->a_dvp;
+ struct vnode_attr *vap = ap->a_vap;
+ struct componentname *cnp = ap->a_cnp;
+ struct nfs_vattr nvattr;
+ struct nfsv2_sattr *sp;
+ u_long *tl;
+ caddr_t cp;
+ long t1, t2;
+ int len;
struct nfsnode *np = (struct nfsnode *)0;
- struct vnode *newvp = (struct vnode *)0;
+ vnode_t newvp = (vnode_t)0;
caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR;
+ int error = 0, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
int gotvp = 0;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
- struct vattr vattr;
+ mbuf_t mreq, mrep, md, mb, mb2;
int v3 = NFS_ISV3(dvp);
+ int gotuid, gotgid;
+ u_int64_t xid, dxid;
+ kauth_cred_t cred;
+ proc_t p;
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
- if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_proc))) {
- VOP_ABORTOP(dvp, cnp);
- vput(dvp);
- return (error);
- }
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_reqhead(NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len) + NFSX_SATTR(v3));
+ if (error)
+ return (error);
+
+ 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);
+
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_MKDIR]);
nfsm_fhtom(dvp, v3);
- nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN);
+ nfsm_strtom(cnp->cn_nameptr, len, NFS_MAXNAMLEN, v3);
if (v3) {
- nfsm_build(sp3, struct nfsv3_sattr *, NFSX_V3SRVSATTR);
- nfsm_v3sattr(sp3, vap, cnp->cn_cred->cr_uid, vattr.va_gid);
+ nfsm_v3sattr(vap);
} else {
+ struct timespec neg1time = { -1, -1 };
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);
+ sp->sa_mode = vtonfsv2_mode(VDIR,
+ (VATTR_IS_ACTIVE(vap, va_mode) ? vap->va_mode : 0600));
+ sp->sa_uid = gotuid ? (u_long)txdr_unsigned(vap->va_uid) : nfs_xdrneg1;
+ sp->sa_gid = gotgid ? (u_long)txdr_unsigned(vap->va_gid) : nfs_xdrneg1;
+ sp->sa_size = nfs_xdrneg1;
+ if (VATTR_IS_ACTIVE(vap, va_access_time)) {
+ txdr_nfsv2time(&vap->va_access_time, &sp->sa_atime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_atime);
+ }
+ if (VATTR_IS_ACTIVE(vap, va_modify_time)) {
+ txdr_nfsv2time(&vap->va_modify_time, &sp->sa_mtime);
+ } else {
+ txdr_nfsv2time(&neg1time, &sp->sa_mtime);
+ }
}
- nfsm_request(dvp, NFSPROC_MKDIR, cnp->cn_proc, cnp->cn_cred);
+ nfsm_request(dvp, NFSPROC_MKDIR, p, cred, &xid);
+ dxid = xid;
if (!error)
- nfsm_mtofh(dvp, newvp, v3, gotvp);
- if (v3)
- nfsm_wcc_data(dvp, wccflag);
+ nfsm_mtofh(dvp, cnp, newvp, v3, &xid, gotvp);
+ if (v3 && mrep)
+ nfsm_wcc_data(dvp, &premtime, wccpostattr, &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;
- }
+ VTONFS(dvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(dvp)->n_ncmtime, &premtime, ==))
+ VTONFS(dvp)->n_ncmtime = VTONFS(dvp)->n_vattr.nva_mtime;
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(dvp));
/*
* 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 (newvp) {
- vrele(newvp);
- newvp = (struct vnode *)0;
+ vnode_put(newvp);
+ newvp = NULL;
}
- error = nfs_lookitup(dvp, cnp->cn_nameptr, len, cnp->cn_cred,
- cnp->cn_proc, &np);
+ error = nfs_lookitup(dvp, cnp->cn_nameptr, len, cred, p, &np);
if (!error) {
newvp = NFSTOV(np);
- if (newvp->v_type != VDIR)
+ if (vnode_vtype(newvp) != VDIR)
error = EEXIST;
}
}
+ if (!error && (gotuid || gotgid) &&
+ (!newvp || nfs_getattrcache(newvp, &nvattr) ||
+ (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
+ vnode_put(newvp);
+ } else {
*ap->a_vpp = newvp;
- FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
- vput(dvp);
+ }
return (error);
}
*/
static int
nfs_rmdir(ap)
- struct vop_rmdir_args /* {
- struct vnode *a_dvp;
- struct vnode *a_vp;
+ struct vnop_rmdir_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_dvp;
+ vnode_t a_vp;
struct componentname *a_cnp;
+ 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;
+ vnode_t vp = ap->a_vp;
+ vnode_t dvp = ap->a_dvp;
+ struct componentname *cnp = ap->a_cnp;
+ u_long *tl;
+ caddr_t cp;
+ long t1, t2;
caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
+ int error = 0, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
int v3 = NFS_ISV3(dvp);
+ u_int64_t xid;
+ kauth_cred_t cred;
+ proc_t p;
- nfsstats.rpccnt[NFSPROC_RMDIR]++;
- nfsm_reqhead(dvp, NFSPROC_RMDIR,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(cnp->cn_namelen));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_RMDIR]);
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);
- if (v3)
- nfsm_wcc_data(dvp, wccflag);
+ nfsm_strtom(cnp->cn_nameptr, cnp->cn_namelen, NFS_MAXNAMLEN, v3);
+ nfsm_request(dvp, NFSPROC_RMDIR, p, cred, &xid);
+ if (v3 && mrep)
+ nfsm_wcc_data(dvp, &premtime, wccpostattr, &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);
+ VTONFS(dvp)->n_flag |= NMODIFIED;
+ /* if directory hadn't changed, update namecache mtime */
+ if (nfstimespeccmp(&VTONFS(dvp)->n_ncmtime, &premtime, ==))
+ VTONFS(dvp)->n_ncmtime = VTONFS(dvp)->n_vattr.nva_mtime;
+ if (!wccpostattr)
+ NATTRINVALIDATE(VTONFS(dvp));
cache_purge(vp);
- vput(vp);
- vput(dvp);
/*
* 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);
+ LIST_REMOVE(VTONFS(vp), n_hash);
+ VTONFS(vp)->n_flag &= ~NHASHED;
+ lck_mtx_unlock(nfs_node_hash_mutex);
+ }
return (error);
}
*/
static int
nfs_readdir(ap)
- struct vop_readdir_args /* {
- struct vnode *a_vp;
+ struct vnop_readdir_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- struct ucred *a_cred;
+ 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;
+ vnode_t vp = ap->a_vp;
+ struct nfsnode *np = VTONFS(vp);
+ struct uio *uio = ap->a_uio;
int tresid, error;
- struct vattr vattr;
+ struct nfs_vattr nvattr;
+ kauth_cred_t cred;
+ proc_t p;
- if (vp->v_type != VDIR)
+ if (vnode_vtype(vp) != VDIR)
return (EPERM);
+
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
+
/*
* 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(vp, &nvattr, cred, p)) {
+ if (nfstimespeccmp(&np->n_mtime, &nvattr.nva_mtime, ==)) {
+ OSAddAtomic(1, (SInt32*)&nfsstats.direofcache_hits);
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 (nfstimespeccmp(&np->n_ncmtime, &nvattr.nva_mtime, !=)) {
+ /* directory changed, purge any name cache entries */
+ cache_purge(vp);
+ }
}
}
/*
* 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(vp, uio, 0, cred, p);
- if (!error && uio->uio_resid == tresid)
- nfsstats.direofcache_misses++;
+ if (!error && uio_uio_resid(uio) == tresid)
+ OSAddAtomic(1, (SInt32*)&nfsstats.direofcache_misses);
return (error);
}
* Called from below the buffer cache by nfs_doio().
*/
int
-nfs_readdirrpc(vp, uiop, cred)
- struct vnode *vp;
- register struct uio *uiop;
- struct ucred *cred;
-
+nfs_readdirrpc(
+ vnode_t vp,
+ struct uio *uiop,
+ kauth_cred_t cred,
+ proc_t p)
{
- register int len, left;
+ register int len, skiplen, 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;
+ mbuf_t mreq, mrep, md, mb, mb2;
nfsuint64 cookie;
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ struct nfsmount *nmp;
struct nfsnode *dnp = VTONFS(vp);
u_quad_t fileno;
int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1;
int attrflag;
- int v3 = NFS_ISV3(vp);
+ int v3, nmreaddirsize;
+ u_int64_t xid;
#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)))
+ (uio_uio_resid(uiop) & (NFS_DIRBLKSIZ - 1)))
panic("nfs_readdirrpc: bad uio");
#endif
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ v3 = NFS_ISV3(vp);
+ nmreaddirsize = nmp->nm_readdirsize;
/*
* If there is no cookie, assume directory was stale.
* The stopping criteria is EOF or buffer full.
*/
while (more_dirs && bigenough) {
- nfsstats.rpccnt[NFSPROC_READDIR]++;
- nfsm_reqhead(vp, NFSPROC_READDIR, NFSX_FH(v3) +
- NFSX_READDIR(v3));
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_READDIR(v3));
+ if (error)
+ goto nfsmout;
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_READDIR]);
nfsm_fhtom(vp, v3);
if (v3) {
nfsm_build(tl, u_long *, 5 * NFSX_UNSIGNED);
nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED);
*tl++ = cookie.nfsuquad[0];
}
- *tl = txdr_unsigned(nmp->nm_readdirsize);
- nfsm_request(vp, NFSPROC_READDIR, uiop->uio_procp, cred);
+ *tl = txdr_unsigned(nmreaddirsize);
+ nfsm_request(vp, NFSPROC_READDIR, p, cred, &xid);
if (v3) {
- nfsm_postop_attr(vp, attrflag);
+ if (mrep) {
+ nfsm_postop_attr_update(vp, v3, 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);
+ mbuf_freem(mrep);
goto nfsmout;
}
+ } else if (!mrep) {
+ // XXX assert error?
+ goto nfsmout;
}
nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
more_dirs = fxdr_unsigned(int, *tl);
fileno = fxdr_unsigned(u_quad_t, *tl++);
len = fxdr_unsigned(int, *tl);
}
- if (len <= 0 || len > NFS_MAXNAMLEN) {
+ /* 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);
+ mbuf_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) {
+ if ((tlen + (int)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 + (int)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;
+#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);
nfsm_mtouio(uiop, len);
- cp = uiop->uio_iov->iov_base;
+ // 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
+ uio_uio_resid_add(uiop, -tlen);
+ } else {
nfsm_adv(nfsm_rndup(len));
+ }
+ if (skiplen)
+ nfsm_adv(nfsm_rndup(skiplen));
if (v3) {
nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
} else {
nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
more_dirs = (fxdr_unsigned(int, *tl) == 0);
}
- m_freem(mrep);
+ mbuf_freem(mrep);
}
/*
* 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 (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:
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;
+nfs_readdirplusrpc(
+ vnode_t vp,
+ struct uio *uiop,
+ kauth_cred_t cred,
+ proc_t p)
{
- 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;
+ int len, skiplen, left;
+ struct dirent *dp;
+ u_long *tl;
+ caddr_t cp;
+ long t1, t2;
+ vnode_t newvp;
+ nfsuint64 *cookiep;
+ caddr_t bpos, dpos, cp2;
+ mbuf_t mreq, mrep, md, mb, mb2;
+ struct componentname cn, *cnp = &cn;
nfsuint64 cookie;
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ struct nfsmount *nmp;
struct nfsnode *dnp = VTONFS(vp), *np;
- nfsfh_t *fhp;
+ u_char *fhp;
u_quad_t fileno;
int error = 0, tlen, more_dirs = 1, blksiz = 0, doit, bigenough = 1, i;
- int attrflag, fhsize;
+ int attrflag, fhsize, nmreaddirsize, nmrsize;
+ u_int64_t xid, savexid;
+ struct nfs_vattr nvattr;
#ifndef nolint
dp = (struct dirent *)0;
#endif
#if DIAGNOSTIC
if (uiop->uio_iovcnt != 1 || (uiop->uio_offset & (DIRBLKSIZ - 1)) ||
- (uiop->uio_resid & (DIRBLKSIZ - 1)))
+ (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)))
panic("nfs_readdirplusrpc: bad uio");
#endif
- ndp->ni_dvp = vp;
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ nmreaddirsize = nmp->nm_readdirsize;
+ nmrsize = nmp->nm_rsize;
+
+ bzero(cnp, sizeof(*cnp));
newvp = NULLVP;
/*
* The stopping criteria is EOF or buffer full.
*/
while (more_dirs && bigenough) {
- nfsstats.rpccnt[NFSPROC_READDIRPLUS]++;
- nfsm_reqhead(vp, NFSPROC_READDIRPLUS,
- NFSX_FH(1) + 6 * NFSX_UNSIGNED);
+ nfsm_reqhead(NFSX_FH(1) + 6 * NFSX_UNSIGNED);
+ if (error)
+ goto nfsmout;
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_READDIRPLUS]);
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);
- nfsm_postop_attr(vp, attrflag);
+ *tl++ = txdr_unsigned(nmreaddirsize);
+ *tl = txdr_unsigned(nmrsize);
+ nfsm_request(vp, NFSPROC_READDIRPLUS, p, cred, &xid);
+ savexid = xid;
+ if (mrep) {
+ nfsm_postop_attr_update(vp, 1, attrflag, &xid);
+ }
if (error) {
- m_freem(mrep);
+ mbuf_freem(mrep);
goto nfsmout;
}
nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
fxdr_hyper(tl, &fileno);
len = fxdr_unsigned(int, *(tl + 2));
- if (len <= 0 || len > NFS_MAXNAMLEN) {
+ /* 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);
+ mbuf_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) {
+ if ((tlen + (int)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 + (int)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;
+ 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
+ uio_uio_resid_add(uiop, -tlen);
+ } else {
nfsm_adv(nfsm_rndup(len));
+ }
+ if (skiplen)
+ nfsm_adv(nfsm_rndup(skiplen));
nfsm_dissect(tl, u_long *, 3 * NFSX_UNSIGNED);
if (bigenough) {
cookie.nfsuquad[0] = *tl++;
*/
attrflag = fxdr_unsigned(int, *tl);
if (attrflag) {
- dpossav1 = dpos;
- mdsav1 = md;
- nfsm_adv(NFSX_V3FATTR);
+ /* grab attributes */
+ nfsm_attr_get(1, &nvattr);
+ dp->d_type = IFTODT(VTTOIF(nvattr.nva_type));
+ /* check for file handle */
nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
doit = fxdr_unsigned(int, *tl);
if (doit) {
nfsm_getfh(fhp, fhsize, 1);
if (NFS_CMPFH(dnp, fhp, fhsize)) {
- VREF(vp);
- newvp = vp;
- np = dnp;
+ error = vnode_ref(vp);
+ if (error) {
+ doit = 0;
+ } else {
+ newvp = vp;
+ 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(vnode_mount(vp), vp, 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;
- nfsm_loadattr(newvp, (struct vattr *)0);
- 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);
+ /* update attributes if not already updated */
+ if (doit && bigenough && (np->n_xid <= savexid)) {
+ xid = savexid;
+ nfs_loadattrcache(np, &nvattr, &xid, 0);
+ /* any error can be ignored */
}
} else {
/* Just skip over the file handle */
nfsm_adv(nfsm_rndup(i));
}
if (newvp != NULLVP) {
- vrele(newvp);
+ if (newvp == vp)
+ vnode_rele(newvp);
+ else
+ vnode_put(newvp);
newvp = NULLVP;
}
nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
nfsm_dissect(tl, u_long *, NFSX_UNSIGNED);
more_dirs = (fxdr_unsigned(int, *tl) == 0);
}
- m_freem(mrep);
+ mbuf_freem(mrep);
}
/*
* Fill last record, iff any, out to a multiple of NFS_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 (bigenough)
dnp->n_direofoffset = uiop->uio_offset;
else {
- if (uiop->uio_resid > 0)
+ if (uio_uio_resid(uiop) > 0)
printf("EEK! readdirplusrpc 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;
- }
return (error);
}
* to create the same funny name between the nfs_lookitup() fails and the
* nfs_rename() completes, but...
*/
+
+/* format of "random" names and next name to try */
+/* (note: shouldn't exceed size of sillyrename.s_name) */
+static char sillyrename_name[] = ".nfsAAA%04x4.4";
+
static int
-nfs_sillyrename(dvp, vp, cnp)
- struct vnode *dvp, *vp;
- struct componentname *cnp;
+nfs_sillyrename(
+ vnode_t dvp,
+ vnode_t vp,
+ struct componentname *cnp,
+ kauth_cred_t cred,
+ proc_t p)
{
register struct sillyrename *sp;
struct nfsnode *np;
int error;
short pid;
- struct ucred *cred;
+ kauth_cred_t tmpcred;
+ int i, j, k;
- cache_purge(dvp);
+ cache_purge(vp);
np = VTONFS(vp);
#if DIAGNOSTIC
- if (vp->v_type == VDIR)
+ if (vnode_vtype(vp) == 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);
+ if (!sp)
+ return (ENOMEM);
+ kauth_cred_ref(cred);
+ sp->s_cred = cred;
sp->s_dvp = dvp;
- VREF(dvp);
+ error = vnode_ref(dvp);
+ 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 = proc_pid(p);
+ sp->s_namlen = sprintf(sp->s_name, sillyrename_name, pid);
/* 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;
+ i = j = k = 0;
+ while (nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred, p, NULL) == 0) {
+ if (sp->s_name[4]++ >= 'z')
+ sp->s_name[4] = 'A';
+ if (++i > ('z' - 'A' + 1)) {
+ i = 0;
+ if (sp->s_name[5]++ >= 'z')
+ sp->s_name[5] = 'A';
+ if (++j > ('z' - 'A' + 1)) {
+ j = 0;
+ if (sp->s_name[6]++ >= 'z')
+ sp->s_name[6] = 'A';
+ if (++k > ('z' - 'A' + 1)) {
+ error = EINVAL;
+ goto bad;
+ }
+ }
+ }
+ }
+ /* make note of next "random" name to try */
+ if ((sillyrename_name[4] = (sp->s_name[4] + 1)) > 'z') {
+ sillyrename_name[4] = 'A';
+ if ((sillyrename_name[5] = (sp->s_name[5] + 1)) > 'z') {
+ sillyrename_name[5] = 'A';
+ if ((sillyrename_name[6] = (sp->s_name[6] + 1)) > 'z')
+ sillyrename_name[6] = 'A';
}
}
- if ((error = nfs_renameit(dvp, cnp, sp)))
+ /* now, do the rename */
+ error = nfs_renamerpc(dvp, cnp->cn_nameptr, cnp->cn_namelen,
+ dvp, sp->s_name, sp->s_namlen, sp->s_cred, p);
+ if (error)
goto bad;
- error = nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred,
- cnp->cn_proc, &np);
+ error = nfs_lookitup(dvp, sp->s_name, sp->s_namlen, sp->s_cred, p, &np);
#if DIAGNOSTIC
kprintf("sillyrename: %s, vp=%x, np=%x, dvp=%x\n",
&sp->s_name[0], (unsigned)vp, (unsigned)np, (unsigned)dvp);
np->n_sillyrename = sp;
return (0);
bad:
- vrele(sp->s_dvp);
- cred = sp->s_cred;
+ vnode_rele(sp->s_dvp);
+bad_norele:
+ tmpcred = sp->s_cred;
sp->s_cred = NOCRED;
- crfree(cred);
- _FREE_ZONE((caddr_t)sp, sizeof (struct sillyrename), M_NFSREQ);
+ kauth_cred_rele(tmpcred);
+ FREE_ZONE((caddr_t)sp, sizeof (struct sillyrename), M_NFSREQ);
return (error);
}
*/
static int
nfs_lookitup(dvp, name, len, cred, procp, npp)
- register struct vnode *dvp;
+ vnode_t dvp;
char *name;
int len;
- struct ucred *cred;
- struct proc *procp;
+ kauth_cred_t cred;
+ proc_t procp;
struct nfsnode **npp;
{
- register u_long *tl;
- register caddr_t cp;
- register long t1, t2;
- struct vnode *newvp = (struct vnode *)0;
+ u_long *tl;
+ caddr_t cp;
+ long t1, t2;
+ vnode_t newvp = (vnode_t)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);
+ mbuf_t mreq, mrep, md, mb, mb2;
+ u_char *nfhp;
+ int v3;
+ u_int64_t xid, dxid, savedxid;
+ struct nfs_vattr nvattr;
+
+ if (!VFSTONFS(vnode_mount(dvp)))
+ return (ENXIO);
+ v3 = NFS_ISV3(dvp);
- nfsstats.rpccnt[NFSPROC_LOOKUP]++;
- nfsm_reqhead(dvp, NFSPROC_LOOKUP,
- NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len));
+ nfsm_reqhead(NFSX_FH(v3) + NFSX_UNSIGNED + nfsm_rndup(len));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_LOOKUP]);
nfsm_fhtom(dvp, v3);
- nfsm_strtom(name, len, NFS_MAXNAMLEN);
- nfsm_request(dvp, NFSPROC_LOOKUP, procp, cred);
+ nfsm_strtom(name, len, NFS_MAXNAMLEN, v3);
+ nfsm_request(dvp, NFSPROC_LOOKUP, procp, cred, &xid);
if (npp && !error) {
+ savedxid = xid;
nfsm_getfh(nfhp, fhlen, v3);
+ /* get attributes */
+ if (v3) {
+ nfsm_postop_attr_get(v3, attrflag, &nvattr);
+ if (!attrflag) {
+ /* We need valid attributes in order */
+ /* to call nfs_nget/vnode_create(). */
+ error = nfs_getattr_no_vnode(vnode_mount(dvp),
+ nfhp, fhlen, cred, procp, &nvattr, &xid);
+ if (error) {
+ mbuf_freem(mrep);
+ goto nfsmout;
+ }
+ }
+ dxid = savedxid;
+ nfsm_postop_attr_update(dvp, v3, attrflag, &dxid);
+ } else {
+ nfsm_attr_get(v3, &nvattr);
+ }
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);
+ if (fhlen != np->n_fhsize) {
+ u_char *oldbuf = (np->n_fhsize > NFS_SMALLFH) ? np->n_fhp : NULL;
+ if (fhlen > NFS_SMALLFH) {
+ MALLOC_ZONE(np->n_fhp, u_char *, fhlen, M_NFSBIGFH, M_WAITOK);
+ if (!np->n_fhp) {
+ np->n_fhp = oldbuf;
+ error = ENOMEM;
+ mbuf_freem(mrep);
+ goto nfsmout;
+ }
+ } else {
+ np->n_fhp = &np->n_fh[0];
+ }
+ if (oldbuf) {
+ FREE_ZONE(oldbuf, np->n_fhsize, M_NFSBIGFH);
+ }
+ }
+ bcopy(nfhp, np->n_fhp, fhlen);
np->n_fhsize = fhlen;
newvp = NFSTOV(np);
+ error = nfs_loadattrcache(np, &nvattr, &xid, 0);
+ if (error) {
+ mbuf_freem(mrep);
+ goto nfsmout;
+ }
} else if (NFS_CMPFH(dnp, nfhp, fhlen)) {
- VREF(dvp);
newvp = dvp;
+ if (dnp->n_xid <= savedxid) {
+ dxid = savedxid;
+ error = nfs_loadattrcache(dnp, &nvattr, &dxid, 0);
+ if (error) {
+ mbuf_freem(mrep);
+ goto nfsmout;
+ }
+ }
} else {
- error = nfs_nget(dvp->v_mount, nfhp, fhlen, &np);
+ struct componentname cn, *cnp = &cn;
+ bzero(cnp, sizeof(*cnp));
+ cnp->cn_nameptr = name;
+ cnp->cn_namelen = len;
+
+ error = nfs_nget(vnode_mount(dvp), dvp, cnp, nfhp, fhlen,
+ &nvattr, &xid, NG_MAKEENTRY, &np);
if (error) {
- m_freem(mrep);
+ mbuf_freem(mrep);
return (error);
}
newvp = NFSTOV(np);
}
- if (v3) {
- nfsm_postop_attr(newvp, attrflag);
- if (!attrflag && *npp == NULL) {
- m_freem(mrep);
- if (newvp == dvp)
- vrele(newvp);
- else
- vput(newvp);
- return (ENOENT);
- }
- } else
- nfsm_loadattr(newvp, (struct vattr *)0);
}
nfsm_reqdone;
if (npp && *npp == NULL) {
if (error) {
- if (newvp)
+ if (newvp) {
if (newvp == dvp)
- vrele(newvp);
+ vnode_rele(newvp);
else
- vput(newvp);
+ vnode_put(newvp);
+ }
} else
*npp = np;
}
/*
* Nfs Version 3 commit rpc
*/
-static int
-nfs_commit(vp, offset, cnt, cred, procp)
- register struct vnode *vp;
+int
+nfs_commit(vp, offset, count, cred, procp)
+ vnode_t vp;
u_quad_t offset;
- int cnt;
- struct ucred *cred;
- struct proc *procp;
+ u_int32_t count;
+ kauth_cred_t cred;
+ proc_t procp;
{
- register caddr_t cp;
- register u_long *tl;
- register int t1, t2;
- register struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ caddr_t cp;
+ u_long *tl;
+ int t1, t2;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
caddr_t bpos, dpos, cp2;
- int error = 0, wccflag = NFSV3_WCCRATTR;
- struct mbuf *mreq, *mrep, *md, *mb, *mb2;
-
- if ((nmp->nm_flag & NFSMNT_HASWRITEVERF) == 0)
+ int error = 0, wccpostattr = 0;
+ struct timespec premtime = { 0, 0 };
+ mbuf_t mreq, mrep, md, mb, mb2;
+ u_int64_t xid, wverf;
+
+ FSDBG(521, vp, offset, count, nmp->nm_state);
+ if (!nmp)
+ return (ENXIO);
+ if ((nmp->nm_state & NFSSTA_HASWRITEVERF) == 0)
return (0);
- nfsstats.rpccnt[NFSPROC_COMMIT]++;
- nfsm_reqhead(vp, NFSPROC_COMMIT, NFSX_FH(1));
+ nfsm_reqhead(NFSX_FH(1));
+ if (error)
+ return (error);
+ OSAddAtomic(1, (SInt32*)&nfsstats.rpccnt[NFSPROC_COMMIT]);
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);
- nfsm_wcc_data(vp, wccflag);
+ *tl = txdr_unsigned(count);
+ nfsm_request(vp, NFSPROC_COMMIT, procp, cred, &xid);
+ if (mrep) {
+ nfsm_wcc_data(vp, &premtime, wccpostattr, &xid);
+ /* XXX can we do anything useful with the wcc info? */
+ }
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);
+ fxdr_hyper(tl, &wverf);
+ if (wverf != nmp->nm_verf) {
+ nmp->nm_verf = wverf;
error = NFSERR_STALEWRITEVERF;
}
}
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;
+nfs_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)
{
- 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);
+ return (ENOTSUP);
}
/*
*
* NB Currently unsupported.
*/
-/* ARGSUSED */
+/*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;
+nfs_mmap(
+ __unused struct vnop_mmap_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_fflags;
+ kauth_cred_t a_cred;
+ proc_t a_p;
+ } */ *ap)
{
return (EINVAL);
/* ARGSUSED */
static int
nfs_fsync(ap)
- struct vop_fsync_args /* {
+ struct vnop_fsync_args /* {
struct vnodeop_desc *a_desc;
- struct vnode * a_vp;
- struct ucred * a_cred;
- int a_waitfor;
- struct proc * a_p;
+ vnode_t a_vp;
+ int a_waitfor;
+ vfs_context_t a_context;
} */ *ap;
{
+ kauth_cred_t cred = vfs_context_ucred(ap->a_context);
+ proc_t p = vfs_context_proc(ap->a_context);
+ struct nfsnode *np = VTONFS(ap->a_vp);
+ int error;
- return (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_p, 1));
+ np->n_flag |= NWRBUSY;
+ error = nfs_flush(ap->a_vp, ap->a_waitfor, cred, p, 0);
+ np->n_flag &= ~NWRBUSY;
+ return (error);
}
-
-/*
- * 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;
+
+int
+nfs_flushcommits(vnode_t vp, proc_t p, int nowait)
{
- 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;
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsbuf *bp;
+ struct nfsbuflists blist, commitlist;
+ int error = 0, retv, wcred_set, flags;
u_quad_t off, endoff, toff;
- struct ucred* wcred = NULL;
- struct buf **bvec = NULL;
- void * object;
- kern_return_t kret;
- upl_t *upls = NULL;
-
+ u_int32_t count;
+ kauth_cred_t wcred = NULL;
-#ifndef NFS_COMMITBVECSIZ
-#define NFS_COMMITBVECSIZ 20
-#endif
- struct buf *bvec_on_stack[NFS_COMMITBVECSIZ];
- struct upl_t *upls_on_stack[NFS_COMMITBVECSIZ];
- int bvecsize = 0, bveccount, buplpos;
-
- if (nmp->nm_flag & NFSMNT_INT)
- slpflag = PCATCH;
- if (!commit)
- passone = 0;
+ FSDBG_TOP(557, vp, np, 0, 0);
/*
- * A b_flags == (B_DELWRI | B_NEEDCOMMIT) block has been written to the
+ * A nb_flags == (NB_DELWRI | NB_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.
+ * yet. The byte range is worked out for as many nfsbufs as we can handle
+ * and the commit rpc is done.
*/
-again:
- if (vp->v_dirtyblkhd.lh_first)
+ if (!LIST_EMPTY(&np->n_dirtyblkhd))
np->n_flag |= NMODIFIED;
+
off = (u_quad_t)-1;
endoff = 0;
- bvecpos = 0;
- buplpos = 0;
- if (NFS_ISV3(vp) && commit) {
- s = splbio();
- /*
- * Count up how many buffers waiting for a commit.
- */
- 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++;
- }
- /*
- * 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 (bveccount > NFS_COMMITBVECSIZ) {
- if (bvec != NULL && bvec != bvec_on_stack)
- _FREE(bvec, M_TEMP);
- 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;
- /* allocate the upl structure before the loop based on buffers to commit */
- if (upls != NULL && upls != upls_on_stack)
- _FREE(upls, M_TEMP);
- MALLOC(upls, struct upl_t *,
- bveccount * sizeof(upl_t), M_TEMP, M_NOWAIT);
- if (upls == NULL)
- upls = upls_on_stack;
- } else {
- if (bvec && bvec != bvec_on_stack)
- _FREE(bvec, M_TEMP);
- bvec = bvec_on_stack;
- bvecsize = NFS_COMMITBVECSIZ;
- if (upls && upls != upls_on_stack)
- _FREE(upls, M_TEMP);
- upls = upls_on_stack;
- }
+ wcred_set = 0;
+ LIST_INIT(&commitlist);
- for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) {
- nbp = bp->b_vnbufs.le_next;
- if (bvecpos >= bvecsize)
- break;
- if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT))
- != (B_DELWRI | B_NEEDCOMMIT))
+ if (!VFSTONFS(vnode_mount(vp))) {
+ error = ENXIO;
+ goto done;
+ }
+ if (!NFS_ISV3(vp)) {
+ error = EINVAL;
+ goto done;
+ }
+
+ flags = NBI_DIRTY;
+ if (nowait)
+ flags |= NBI_NOWAIT;
+ lck_mtx_lock(nfs_buf_mutex);
+ if (!nfs_buf_iterprepare(np, &blist, flags)) {
+ while ((bp = LIST_FIRST(&blist))) {
+ LIST_REMOVE(bp, nb_vnbufs);
+ LIST_INSERT_HEAD(&np->n_dirtyblkhd, bp, nb_vnbufs);
+ error = nfs_buf_acquire(bp, NBAC_NOWAIT, 0, 0);
+ if (error)
continue;
- bremfree(bp);
+ if (ISSET(bp->nb_flags, NB_NEEDCOMMIT))
+ nfs_buf_check_write_verifier(np, bp);
+ if (((bp->nb_flags & (NB_DELWRI | NB_NEEDCOMMIT))
+ != (NB_DELWRI | NB_NEEDCOMMIT))) {
+ nfs_buf_drop(bp);
+ continue;
+ }
+ nfs_buf_remfree(bp);
+ lck_mtx_unlock(nfs_buf_mutex);
/*
- * Work out if all buffers are using the same cred
- * so we can deal with them all with one commit.
+ * we need a upl to see if the page has been
+ * dirtied (think mmap) since the unstable write, and
+ * also to prevent vm from paging it during our commit rpc
+ */
+ if (!ISSET(bp->nb_flags, NB_PAGELIST)) {
+ retv = nfs_buf_upl_setup(bp);
+ if (retv) {
+ /* unable to create upl */
+ /* vm object must no longer exist */
+ /* this could be fatal if we need */
+ /* to write the data again, we'll see... */
+ printf("nfs_flushcommits: upl create failed %d\n", retv);
+ bp->nb_valid = bp->nb_dirty = 0;
+ }
+ }
+ nfs_buf_upl_check(bp);
+ lck_mtx_lock(nfs_buf_mutex);
+
+ FSDBG(557, bp, bp->nb_flags, bp->nb_valid, bp->nb_dirty);
+ FSDBG(557, bp->nb_validoff, bp->nb_validend,
+ bp->nb_dirtyoff, bp->nb_dirtyend);
+
+ /*
+ * We used to check for dirty pages here; if there were any
+ * we'd abort the commit and force the entire buffer to be
+ * written again.
+ *
+ * Instead of doing that, we now go ahead and commit the dirty
+ * range, and then leave the buffer around with dirty pages
+ * that will be written out later.
*/
- if (wcred == NULL)
- wcred = bp->b_wcred;
- else if (wcred != bp->b_wcred)
- wcred = NOCRED;
- SET(bp->b_flags, (B_BUSY | B_WRITEINPROG));
/*
- * we need vm_fault_list_request so if vm decides to
- * do paging while we are waiting on commit rpc,
- * that it doesn't pick these pages.
+ * Work out if all buffers are using the same cred
+ * so we can deal with them all with one commit.
+ *
+ * XXX creds in bp's must be obtained by kauth_cred_ref on
+ * the same original cred in order for them to be equal.
*/
- if (!ISSET(bp->b_flags, B_PAGELIST)) {
- /* if pagelist exists, assume vm pages are locked/busy already */ off_t file_offset = ubc_blktooff(vp, bp->b_lblkno);
- object = ubc_getobject(vp, (UBC_NOREACTIVATE|UBC_HOLDOBJECT));
- if (object == (void*)NULL)
- panic("nfs_getcacheblk: NULL vmobject");
- if(bp->b_bufsize & 0xfff)
- panic("nfs_getcacheblk: list request is less than 4k");
- kret = vm_fault_list_request(
- object, (vm_object_offset_t)file_offset,
- bp->b_bufsize, &(upls[buplpos]), NULL, 0,
- (int)(UPL_NO_SYNC | UPL_CLEAN_IN_PLACE |UPL_PRECIOUS |
- UPL_SET_INTERNAL));
- if (kret != KERN_SUCCESS)
- panic("nfs_getcacheblk: get pagelists failed with (%d)", kret);
-
-#ifdef UBC_DEBUG
- upl_ubc_alias_set(pl, ioaddr, 1);
-#endif /* UBC_DEBUG */
- buplpos++; /* not same as bvecpos if upl existed already */
+ if (wcred_set == 0) {
+ wcred = bp->nb_wcred;
+ if (wcred == NOCRED)
+ panic("nfs: needcommit w/out wcred");
+ wcred_set = 1;
+ } else if ((wcred_set == 1) && wcred != bp->nb_wcred) {
+ wcred_set = -1;
}
+ SET(bp->nb_flags, NB_WRITEINPROG);
/*
* A list of these buffers is kept so that the
* 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;
+ LIST_REMOVE(bp, nb_vnbufs);
+ LIST_INSERT_HEAD(&commitlist, bp, nb_vnbufs);
+ toff = NBOFF(bp) + bp->nb_dirtyoff;
if (toff < off)
off = toff;
- toff += (u_quad_t)(bp->b_dirtyend - bp->b_dirtyoff);
+ toff += (u_quad_t)(bp->nb_dirtyend - bp->nb_dirtyoff);
if (toff > endoff)
endoff = toff;
}
- splx(s);
+ nfs_buf_itercomplete(np, &blist, NBI_DIRTY);
+ }
+ lck_mtx_unlock(nfs_buf_mutex);
+
+ if (LIST_EMPTY(&commitlist)) {
+ error = ENOBUFS;
+ goto done;
}
- 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_set == 1) {
/*
- * 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.
+ * Note, it's possible the commit range could be >2^32-1.
+ * If it is, we'll send one commit that covers the whole file.
*/
- 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];
- 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 ((endoff - off) > 0xffffffff)
+ count = 0;
+ else
+ count = (endoff - off);
+ retv = nfs_commit(vp, off, count, wcred, p);
+ } else {
+ retv = 0;
+ LIST_FOREACH(bp, &commitlist, nb_vnbufs) {
+ toff = NBOFF(bp) + bp->nb_dirtyoff;
+ count = bp->nb_dirtyend - bp->nb_dirtyoff;
+ retv = nfs_commit(vp, toff, count, bp->nb_wcred, p);
+ if (retv)
+ break;
}
+ }
- if (retv == NFSERR_STALEWRITEVERF)
- nfs_clearcommit(vp->v_mount);
-
- for (i = 0; i < buplpos; i++) {
- /*
- * before the VOP_BWRITE and biodone(ASYNC)/brelse, we have to undo
- * holding the vm page or we we will deadlock on another vm_fault_list_request.
- * Here's a convenient place to put it.
- * Better if we could hold it by setting the PAGELIST flag and kernel_upl_map
- * as does nfs_writebp. Then normal biodones and brelse will clean it up and
- * we can avoid this abort. For now make minimal changse and test this out.
- */
- err = kernel_upl_abort(upls[i], NULL);
- if (err)
- printf("nfs_flush: kernel_upl_abort %d\n", err);
- }
+ /*
+ * Now, either mark the blocks I/O done or mark the
+ * blocks dirty, depending on whether the commit
+ * succeeded.
+ */
+ while ((bp = LIST_FIRST(&commitlist))) {
+ LIST_REMOVE(bp, nb_vnbufs);
+ FSDBG(557, bp, retv, bp->nb_flags, bp->nb_dirty);
+ CLR(bp->nb_flags, (NB_NEEDCOMMIT | NB_WRITEINPROG));
+ np->n_needcommitcnt--;
+ CHECK_NEEDCOMMITCNT(np);
+
+ if (retv) {
+ /* move back to dirty list */
+ lck_mtx_lock(nfs_buf_mutex);
+ LIST_INSERT_HEAD(&VTONFS(vp)->n_dirtyblkhd, bp, nb_vnbufs);
+ lck_mtx_unlock(nfs_buf_mutex);
+ nfs_buf_release(bp, 1);
+ continue;
+ }
- /*
- * 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];
- CLR(bp->b_flags, (B_NEEDCOMMIT | B_WRITEINPROG));
- if (retv) {
- brelse(bp);
- } else {
- vp->v_numoutput++;
- SET(bp->b_flags, B_ASYNC);
- s = splbio();
- CLR(bp->b_flags, (B_READ|B_DONE|B_ERROR|B_DELWRI));
- bp->b_dirtyoff = bp->b_dirtyend = 0;
- reassignbuf(bp, vp);
- splx(s);
- biodone(bp);
- }
+ vnode_startwrite(vp);
+ if (ISSET(bp->nb_flags, NB_DELWRI)) {
+ OSAddAtomic(-1, (SInt32*)&nfs_nbdwrite);
+ NFSBUFCNTCHK(0);
+ wakeup(&nfs_nbdwrite);
}
+ CLR(bp->nb_flags, (NB_READ|NB_DONE|NB_ERROR|NB_DELWRI));
+ /* if block still has dirty pages, we don't want it to */
+ /* be released in nfs_buf_iodone(). So, don't set NB_ASYNC. */
+ if (!bp->nb_dirty)
+ SET(bp->nb_flags, NB_ASYNC);
+
+ /* move to clean list */
+ lck_mtx_lock(nfs_buf_mutex);
+ LIST_INSERT_HEAD(&VTONFS(vp)->n_cleanblkhd, bp, nb_vnbufs);
+ lck_mtx_unlock(nfs_buf_mutex);
+
+ bp->nb_dirtyoff = bp->nb_dirtyend = 0;
+
+ nfs_buf_iodone(bp);
+ if (bp->nb_dirty) {
+ /* throw it back in as a delayed write buffer */
+ CLR(bp->nb_flags, NB_DONE);
+ nfs_buf_write_delayed(bp, p);
+ }
+ }
+done:
+ FSDBG_BOT(557, vp, np, 0, error);
+ return (error);
+}
+
+/*
+ * Flush all the blocks associated with a vnode.
+ * Walk through the buffer pool and push any dirty pages
+ * associated with the vnode.
+ */
+int
+nfs_flush(
+ vnode_t vp,
+ int waitfor,
+ __unused kauth_cred_t cred,
+ proc_t p,
+ int ignore_writeerr)
+{
+ struct nfsnode *np = VTONFS(vp);
+ struct nfsbuf *bp;
+ struct nfsbuflists blist;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ int error = 0, error2, slptimeo = 0, slpflag = 0;
+ int flags, passone = 1;
+
+ FSDBG_TOP(517, vp, np, waitfor, 0);
+
+ if (!nmp) {
+ error = ENXIO;
+ goto done;
}
+ if (nmp->nm_flag & NFSMNT_INT)
+ slpflag = PCATCH;
/*
- * 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
+ * On the first pass, start async/unstable writes on all
+ * delayed write buffers. Then wait for all writes to complete
+ * and call nfs_flushcommits() to commit any uncommitted buffers.
+ * On all subsequent passes, start STABLE writes on any remaining
+ * dirty buffers. Then wait for all writes to complete.
*/
-loop:
- if (current_thread_aborted()) {
- error = EINTR;
+again:
+ lck_mtx_lock(nfs_buf_mutex);
+ FSDBG(518, LIST_FIRST(&np->n_dirtyblkhd), np->n_flag, 0, 0);
+ if (!LIST_EMPTY(&np->n_dirtyblkhd))
+ np->n_flag |= NMODIFIED;
+ if (!VFSTONFS(vnode_mount(vp))) {
+ lck_mtx_unlock(nfs_buf_mutex);
+ error = ENXIO;
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)) {
- if (waitfor != MNT_WAIT || passone)
+
+ /* Start/do any write(s) that are required. */
+ if (!nfs_buf_iterprepare(np, &blist, NBI_DIRTY)) {
+ while ((bp = LIST_FIRST(&blist))) {
+ LIST_REMOVE(bp, nb_vnbufs);
+ LIST_INSERT_HEAD(&np->n_dirtyblkhd, bp, nb_vnbufs);
+ flags = (passone || (waitfor != MNT_WAIT)) ? NBAC_NOWAIT : 0;
+ if (flags != NBAC_NOWAIT)
+ nfs_buf_refget(bp);
+ while ((error = nfs_buf_acquire(bp, flags, slpflag, slptimeo))) {
+ FSDBG(524, bp, flags, bp->nb_lflags, bp->nb_flags);
+ if (error == EBUSY)
+ break;
+ if (error) {
+ error2 = nfs_sigintr(VFSTONFS(vnode_mount(vp)), NULL, p);
+ if (error2) {
+ if (flags != NBAC_NOWAIT)
+ nfs_buf_refrele(bp);
+ nfs_buf_itercomplete(np, &blist, NBI_DIRTY);
+ lck_mtx_unlock(nfs_buf_mutex);
+ error = error2;
+ goto done;
+ }
+ if (slpflag == PCATCH) {
+ slpflag = 0;
+ slptimeo = 2 * hz;
+ }
+ }
+ }
+ if (flags != NBAC_NOWAIT)
+ nfs_buf_refrele(bp);
+ if (error == EBUSY)
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;
+ if (!bp->nb_vp) {
+ /* buffer is no longer valid */
+ nfs_buf_drop(bp);
+ continue;
+ }
+ if (ISSET(bp->nb_flags, NB_NEEDCOMMIT))
+ nfs_buf_check_write_verifier(np, bp);
+ if (!ISSET(bp->nb_flags, NB_DELWRI))
+ panic("nfs_flush: not dirty");
+ FSDBG(525, bp, passone, bp->nb_lflags, bp->nb_flags);
+ if ((passone || (waitfor != MNT_WAIT)) &&
+ ISSET(bp->nb_flags, NB_NEEDCOMMIT)) {
+ nfs_buf_drop(bp);
+ continue;
+ }
+ nfs_buf_remfree(bp);
+ lck_mtx_unlock(nfs_buf_mutex);
+ if (ISSET(bp->nb_flags, NB_ERROR)) {
+ np->n_error = bp->nb_error ? bp->nb_error : EIO;
+ np->n_flag |= NWRITEERR;
+ nfs_buf_release(bp, 1);
+ lck_mtx_lock(nfs_buf_mutex);
+ continue;
+ }
+ SET(bp->nb_flags, NB_ASYNC);
+ if (!passone) {
+ /* NB_STABLE forces this to be written FILESYNC */
+ SET(bp->nb_flags, NB_STABLE);
+ }
+ nfs_buf_write(bp);
+ lck_mtx_lock(nfs_buf_mutex);
+ }
+ nfs_buf_itercomplete(np, &blist, NBI_DIRTY);
+ }
+ lck_mtx_unlock(nfs_buf_mutex);
+
+ if (waitfor == MNT_WAIT) {
+ while ((error = vnode_waitforwrites(vp, 0, slpflag, slptimeo, "nfsflush"))) {
+ error2 = nfs_sigintr(VFSTONFS(vnode_mount(vp)), NULL, p);
+ if (error2) {
+ error = error2;
goto done;
- }
- if (slpflag == PCATCH) {
+ }
+ if (slpflag == PCATCH) {
slpflag = 0;
slptimeo = 2 * hz;
- }
}
- goto loop;
}
- if (!ISSET(bp->b_flags, B_DELWRI))
- panic("nfs_fsync: not dirty");
- 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;
+ if (NFS_ISV3(vp)) {
+ /* loop while it looks like there are still buffers to be */
+ /* commited and nfs_flushcommits() seems to be handling them. */
+ while (np->n_needcommitcnt)
+ if (nfs_flushcommits(vp, p, 0))
+ break;
}
- 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;
- }
+ if (!LIST_EMPTY(&np->n_dirtyblkhd))
+ goto again;
+ /* if we have no dirty blocks, we can clear the modified flag */
+ np->n_flag &= ~NMODIFIED;
}
- if (np->n_flag & NWRITEERR) {
+
+ FSDBG(526, np->n_flag, np->n_error, 0, 0);
+ if (!ignore_writeerr && (np->n_flag & NWRITEERR)) {
error = np->n_error;
np->n_flag &= ~NWRITEERR;
}
done:
- if (bvec != NULL && bvec != bvec_on_stack)
- _FREE(bvec, M_TEMP);
- if (upls != NULL && upls != upls_on_stack)
- _FREE(upls, M_TEMP);
+ FSDBG_BOT(517, vp, np, error, 0);
+ return (error);
+}
+
+/*
+ * Do an nfs pathconf rpc.
+ */
+int
+nfs_pathconfrpc(
+ vnode_t vp,
+ struct nfsv3_pathconf *pc,
+ kauth_cred_t cred,
+ proc_t procp)
+{
+ mbuf_t mreq, mrep, md, mb, mb2;
+ caddr_t bpos, dpos, cp, cp2;
+ int32_t t1, t2;
+ u_long *tl;
+ u_int64_t xid;
+ int attrflag, error = 0;
+ struct nfsv3_pathconf *mpc;
+
+ /* fetch pathconf info from server */
+ nfsm_reqhead(NFSX_FH(1));
+ if (error)
+ return (error);
+ nfsm_fhtom(vp, 1);
+ nfsm_request(vp, NFSPROC_PATHCONF, procp, cred, &xid);
+ nfsm_postop_attr_update(vp, 1, attrflag, &xid);
+ if (!error) {
+ nfsm_dissect(mpc, struct nfsv3_pathconf *, NFSX_V3PATHCONF);
+ pc->pc_linkmax = fxdr_unsigned(long, mpc->pc_linkmax);
+ pc->pc_namemax = fxdr_unsigned(long, mpc->pc_namemax);
+ pc->pc_chownrestricted = fxdr_unsigned(long, mpc->pc_chownrestricted);
+ pc->pc_notrunc = fxdr_unsigned(long, mpc->pc_notrunc);
+ pc->pc_caseinsensitive = fxdr_unsigned(long, mpc->pc_caseinsensitive);
+ pc->pc_casepreserving = fxdr_unsigned(long, mpc->pc_casepreserving);
+ }
+ nfsm_reqdone;
+
return (error);
}
+void
+nfs_pathconf_cache(struct nfsmount *nmp, struct nfsv3_pathconf *pc)
+{
+ nmp->nm_state |= NFSSTA_GOTPATHCONF;
+ nmp->nm_fsinfo.linkmax = pc->pc_linkmax;
+ nmp->nm_fsinfo.namemax = pc->pc_namemax;
+ nmp->nm_fsinfo.pcflags = 0;
+ if (pc->pc_notrunc)
+ nmp->nm_fsinfo.pcflags |= NFSPCINFO_NOTRUNC;
+ if (pc->pc_chownrestricted)
+ nmp->nm_fsinfo.pcflags |= NFSPCINFO_CHOWN_RESTRICTED;
+ if (pc->pc_caseinsensitive)
+ nmp->nm_fsinfo.pcflags |= NFSPCINFO_CASE_INSENSITIVE;
+ if (pc->pc_casepreserving)
+ nmp->nm_fsinfo.pcflags |= NFSPCINFO_CASE_PRESERVING;
+}
+
/*
* Return POSIX pathconf information applicable to nfs.
*
/* ARGSUSED */
static int
nfs_pathconf(ap)
- struct vop_pathconf_args /* {
- struct vnode *a_vp;
+ struct vnop_pathconf_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
int a_name;
- int *a_retval;
- } */ *ap;
-{
-
- return (EINVAL);
-}
-
-/*
- * NFS advisory byte-level locks.
- * Currently unsupported.
- */
-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;
-{
-#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
-}
-
-/*
- * Print out the contents of an nfsnode.
- */
-static int
-nfs_print(ap)
- struct vop_print_args /* {
- struct vnode *a_vp;
- } */ *ap;
-{
- 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);
-}
-
-/*
- * NFS directory offset lookup.
- * Currently unsupported.
- */
-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;
-{
-
-#if DIAGNOSTIC
- printf("nfs_blkatoff: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
-}
-
-/*
- * NFS flat namespace allocation.
- * Currently unsupported.
- */
-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;
-{
-
- return (EOPNOTSUPP);
-}
-
-/*
- * 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;
-{
-
-#if DIAGNOSTIC
- printf("nfs_vfree: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
-}
-
-/*
- * NFS file truncation.
- */
-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;
-{
-
- /* Use nfs_setattr */
-#if DIAGNOSTIC
- printf("nfs_truncate: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
-}
-
-/*
- * NFS update.
- */
-static int
-nfs_update(ap)
- struct vop_update_args /* {
- struct vnode *a_vp;
- struct timeval *a_ta;
- struct timeval *a_tm;
- int a_waitfor;
+ register_t *a_retval;
+ vfs_context_t a_context;
} */ *ap;
{
+ vnode_t vp = ap->a_vp;
+ struct nfsmount *nmp;
+ struct nfsv3_pathconf pc;
+ int error = 0, cached;
- /* Use nfs_setattr */
-#if DIAGNOSTIC
- printf("nfs_update: unimplemented!!");
-#endif
- return (EOPNOTSUPP);
-}
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ if (!NFS_ISV3(vp))
+ return (EINVAL);
-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 */
+ 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;
+ default:
+ /* don't bother contacting the server if we know the answer */
+ return (EINVAL);
+ }
-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);
+ if (!(nmp->nm_state & NFSSTA_GOTPATHCONF)) {
+ /* no pathconf info cached */
+ kauth_cred_t cred = vfs_context_ucred(ap->a_context);
+ proc_t p = vfs_context_proc(ap->a_context);
+ error = nfs_pathconfrpc(vp, &pc, cred, p);
+ if (error)
+ return (error);
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ if (!(nmp->nm_state & NFSSTA_GOTFSINFO)) {
+ nfs_fsinfo(nmp, vp, cred, p);
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp)
+ return (ENXIO);
+ }
+ if ((nmp->nm_state & NFSSTA_GOTFSINFO) &&
+ (nmp->nm_fsinfo.fsproperties & NFSV3FSINFO_HOMOGENEOUS)) {
+ /* all files have the same pathconf info, */
+ /* so cache a copy of the results */
+ nfs_pathconf_cache(nmp, &pc);
}
}
- (void) thread_funnel_set(kernel_flock, FALSE);
-}
-
-void
-nfs_aio_thread_init()
-{
- if (nfs_aio_threads++ == 0) {
- simple_lock_init(&nfs_aio_slock);
- TAILQ_INIT(&nfs_aio_bufq);
+ cached = (nmp->nm_state & NFSSTA_GOTPATHCONF);
+
+ switch (ap->a_name) {
+ case _PC_LINK_MAX:
+ *ap->a_retval = cached ? nmp->nm_fsinfo.linkmax : pc.pc_linkmax;
+ break;
+ case _PC_NAME_MAX:
+ *ap->a_retval = cached ? nmp->nm_fsinfo.namemax : pc.pc_namemax;
+ break;
+ case _PC_CHOWN_RESTRICTED:
+ if (cached)
+ *ap->a_retval = (nmp->nm_fsinfo.pcflags & NFSPCINFO_CHOWN_RESTRICTED) ? 1 : 0;
+ else
+ *ap->a_retval = pc.pc_chownrestricted;
+ break;
+ case _PC_NO_TRUNC:
+ if (cached)
+ *ap->a_retval = (nmp->nm_fsinfo.pcflags & NFSPCINFO_NOTRUNC) ? 1 : 0;
+ else
+ *ap->a_retval = pc.pc_notrunc;
+ break;
+ case _PC_CASE_SENSITIVE:
+ if (cached)
+ *ap->a_retval = (nmp->nm_fsinfo.pcflags & NFSPCINFO_CASE_INSENSITIVE) ? 0 : 1;
+ else
+ *ap->a_retval = !pc.pc_caseinsensitive;
+ break;
+ case _PC_CASE_PRESERVING:
+ if (cached)
+ *ap->a_retval = (nmp->nm_fsinfo.pcflags & NFSPCINFO_CASE_PRESERVING) ? 1 : 0;
+ else
+ *ap->a_retval = pc.pc_casepreserving;
+ break;
+ default:
+ error = EINVAL;
}
- kernel_thread(kernel_task, nfs_aio_thread);
-}
+ return (error);
+}
/*
- * Just call nfs_writebp() with the force argument set to 1.
+ * NFS advisory byte-level locks (client)
*/
static int
-nfs_bwrite(ap)
- struct vop_bwrite_args /* {
- struct vnode *a_bp;
+nfs_advlock(ap)
+ struct vnop_advlock_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ caddr_t a_id;
+ int a_op;
+ struct flock *a_fl;
+ int a_flags;
+ 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);
- }
- return (nfs_writebp(ap->a_bp, 1));
+ return (nfs_dolock(ap));
}
/*
- * 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.
+ * write (or commit) the given NFS buffer
*/
int
-nfs_writebp(bp, force)
- register struct buf *bp;
- int force;
+nfs_buf_write(struct nfsbuf *bp)
{
- int s;
- register int oldflags = bp->b_flags, retv = 1;
- off_t off;
- upl_t upl;
- void * object;
- kern_return_t kret;
- struct vnode *vp = bp->b_vp;
- upl_page_info_t *pl;
+ int oldflags = bp->nb_flags, rv = 0;
+ vnode_t vp = bp->nb_vp;
+ struct nfsnode *np = VTONFS(vp);
+ kauth_cred_t cr;
+ proc_t p = current_proc(); // XXX
- if(!ISSET(bp->b_flags, B_BUSY))
- panic("nfs_writebp: buffer is not busy???");
+ FSDBG_TOP(553, bp, NBOFF(bp), bp->nb_flags, 0);
- s = splbio();
- CLR(bp->b_flags, (B_READ|B_DONE|B_ERROR|B_DELWRI));
+ if (!ISSET(bp->nb_lflags, NBL_BUSY))
+ panic("nfs_buf_write: buffer is not busy???");
- if (ISSET(oldflags, (B_ASYNC|B_DELWRI))) {
- reassignbuf(bp, vp);
+ CLR(bp->nb_flags, (NB_READ|NB_DONE|NB_ERROR|NB_DELWRI));
+ if (ISSET(oldflags, NB_DELWRI)) {
+ OSAddAtomic(-1, (SInt32*)&nfs_nbdwrite);
+ NFSBUFCNTCHK(0);
+ wakeup(&nfs_nbdwrite);
}
- 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)) {
-
- if (!ISSET(bp->b_flags, B_PAGELIST)) {
-
- off_t file_offset = ubc_blktooff(vp, bp->b_lblkno);
-
- object = ubc_getobject(vp, (UBC_NOREACTIVATE|UBC_HOLDOBJECT));
- if (object == (void*)NULL)
- panic("nfs_writebp: NULL vmobject");
+ /* move to clean list */
+ if (ISSET(oldflags, (NB_ASYNC|NB_DELWRI))) {
+ lck_mtx_lock(nfs_buf_mutex);
+ if (bp->nb_vnbufs.le_next != NFSNOLIST)
+ LIST_REMOVE(bp, nb_vnbufs);
+ LIST_INSERT_HEAD(&VTONFS(vp)->n_cleanblkhd, bp, nb_vnbufs);
+ lck_mtx_unlock(nfs_buf_mutex);
+ }
+ vnode_startwrite(vp);
- if(bp->b_bufsize & 0xfff)
- panic("nfs_writebp: list request is with less than 4k");
-
- kret = vm_fault_list_request(object, (vm_object_offset_t)file_offset,
- bp->b_bufsize, &upl, NULL, 0,
- (int)(UPL_NO_SYNC | UPL_CLEAN_IN_PLACE | UPL_PRECIOUS | UPL_SET_INTERNAL));
- if (kret != KERN_SUCCESS) {
- panic("nfs_writebp: get pagelists failed with (%d)", kret);
- }
-
-#ifdef UBC_DEBUG
- upl_ubc_alias_set(pl, ioaddr, 2);
-#endif /* UBC_DEBUG */
-
- s = splbio();
-
- pl = UPL_GET_INTERNAL_PAGE_LIST(upl);
- bp->b_pagelist = upl;
- SET(bp->b_flags, B_PAGELIST);
- splx(s);
-
- kret = kernel_upl_map(kernel_map, upl,
- (vm_address_t *)&(bp->b_data));
- if (kret != KERN_SUCCESS) {
- panic("nfs_writebp: kernel_upl_map() failed with (%d)", kret);
- }
- if(bp->b_data == 0)
- panic("nfs_writebp: upl_map mapped 0");
- if (!upl_page_present(pl, 0)) {
- /*
- * may be the page got paged out.
- * let's just read it in. It is marked
- * busy so we should not have any one
- * yanking this page underneath the fileIO
- */
- panic("nfs_writebp: nopage");
- }
- }
- }
+ if (p && p->p_stats)
+ p->p_stats->p_ru.ru_oublock++;
/*
- * 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.
+ * For async requests when nfsiod(s) are running, queue the request by
+ * calling nfs_asyncio(), otherwise just all nfs_doio() to do the request.
*/
- 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);
+ if (ISSET(bp->nb_flags, NB_ASYNC))
+ p = NULL;
+ if (ISSET(bp->nb_flags, NB_READ))
+ cr = bp->nb_rcred;
+ else
+ cr = bp->nb_wcred;
+ if (!ISSET(bp->nb_flags, NB_ASYNC) || nfs_asyncio(bp, NOCRED))
+ rv = nfs_doio(bp, cr, p);
+
+ if ((oldflags & NB_ASYNC) == 0) {
+ rv = nfs_buf_iowait(bp);
+ /* move to clean list */
+ if (oldflags & NB_DELWRI) {
+ lck_mtx_lock(nfs_buf_mutex);
+ if (bp->nb_vnbufs.le_next != NFSNOLIST)
+ LIST_REMOVE(bp, nb_vnbufs);
+ LIST_INSERT_HEAD(&VTONFS(vp)->n_cleanblkhd, bp, nb_vnbufs);
+ lck_mtx_unlock(nfs_buf_mutex);
+ }
+ oldflags = bp->nb_flags;
+ FSDBG_BOT(553, bp, NBOFF(bp), bp->nb_flags, rv);
+ if (cr) {
+ kauth_cred_ref(cr);
+ }
+ nfs_buf_release(bp, 1);
+ if (ISSET(oldflags, NB_ERROR) && !(np->n_flag & NFLUSHINPROG)) {
+ /*
+ * 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)
+ *
+ * But we couldn't call vinvalbuf while holding
+ * the buffer busy. So we call vinvalbuf() after
+ * releasing the buffer.
+ */
+ nfs_vinvalbuf(vp, V_SAVE|V_IGNORE_WRITEERR, cr, p, 1);
}
- brelse(bp);
- return (rtval);
+ if (cr)
+ kauth_cred_rele(cr);
+ return (rv);
}
- 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;
-
- /*
- * 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);
- }
- }
- /*
- * 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;
- return (error);
+ FSDBG_BOT(553, bp, NBOFF(bp), bp->nb_flags, rv);
+ return (rv);
}
/*
*/
static int
nfsspec_read(ap)
- struct vop_read_args /* {
- struct vnode *a_vp;
+ struct vnop_read_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
+ int a_ioflag;
+ vfs_context_t a_context;
} */ *ap;
{
register struct nfsnode *np = VTONFS(ap->a_vp);
+ struct timeval now;
/*
* Set access flag.
*/
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;
+ return (VOCALL(spec_vnodeop_p, VOFFSET(vnop_read), ap));
}
/*
*/
static int
nfsspec_write(ap)
- struct vop_write_args /* {
- struct vnode *a_vp;
+ struct vnop_write_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
+ int a_ioflag;
+ vfs_context_t a_context;
} */ *ap;
{
register struct nfsnode *np = VTONFS(ap->a_vp);
+ struct timeval now;
/*
* Set update flag.
*/
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;
+ return (VOCALL(spec_vnodeop_p, VOFFSET(vnop_write), ap));
}
/*
*/
static int
nfsspec_close(ap)
- struct vop_close_args /* {
- struct vnode *a_vp;
- int a_fflag;
- struct ucred *a_cred;
- struct proc *a_p;
+ 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;
+ struct nfsnode *np = VTONFS(vp);
+ struct vnode_attr vattr;
+ mount_t mp;
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);
+ }
+ vnode_setattr(vp, &vattr, ap->a_context);
}
}
- return (VOCALL(spec_vnodeop_p, VOFFSET(vop_close), ap));
+ return (VOCALL(spec_vnodeop_p, VOFFSET(vnop_close), ap));
}
+extern vnop_t **fifo_vnodeop_p;
+
/*
* Read wrapper for fifos.
*/
static int
nfsfifo_read(ap)
- struct vop_read_args /* {
- struct vnode *a_vp;
+ struct vnop_read_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
+ int a_ioflag;
+ vfs_context_t a_context;
} */ *ap;
{
- extern vop_t **fifo_vnodeop_p;
register struct nfsnode *np = VTONFS(ap->a_vp);
+ struct timeval now;
/*
* Set access flag.
*/
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;
+ return (VOCALL(fifo_vnodeop_p, VOFFSET(vnop_read), ap));
}
/*
*/
static int
nfsfifo_write(ap)
- struct vop_write_args /* {
- struct vnode *a_vp;
+ struct vnop_write_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
struct uio *a_uio;
- int a_ioflag;
- struct ucred *a_cred;
+ int a_ioflag;
+ vfs_context_t a_context;
} */ *ap;
{
- extern vop_t **fifo_vnodeop_p;
register struct nfsnode *np = VTONFS(ap->a_vp);
+ struct timeval now;
/*
* Set update flag.
*/
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;
+ return (VOCALL(fifo_vnodeop_p, VOFFSET(vnop_write), ap));
}
/*
*/
static int
nfsfifo_close(ap)
- struct vop_close_args /* {
- struct vnode *a_vp;
- int a_fflag;
- struct ucred *a_cred;
- struct proc *a_p;
+ 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;
+ struct nfsnode *np = VTONFS(vp);
+ struct vnode_attr vattr;
+ struct timeval now;
+ mount_t mp;
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);
+ }
+ vnode_setattr(vp, &vattr, ap->a_context);
}
}
- return (VOCALL(fifo_vnodeop_p, VOFFSET(vop_close), ap));
+ return (VOCALL(fifo_vnodeop_p, VOFFSET(vnop_close), ap));
}
+/*ARGSUSED*/
static int
-nfs_ioctl(ap)
- struct vop_ioctl_args *ap;
+nfs_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;
+ kauth_cred_t a_cred;
+ proc_t a_p;
+ } */ *ap)
{
/*
return (ENOTTY);
}
+/*ARGSUSED*/
static int
-nfs_select(ap)
- struct vop_select_args *ap;
+nfs_select(
+ __unused struct vnop_select_args /* {
+ struct vnodeop_desc *a_desc;
+ vnode_t a_vp;
+ int a_which;
+ int a_fflags;
+ kauth_cred_t a_cred;
+ void *a_wql;
+ proc_t a_p;
+ } */ *ap)
{
/*
return (1);
}
-/* XXX Eliminate use of struct bp here */
/*
* Vnode op for pagein using getblk_pages
* derived from nfs_bioread()
*/
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
+ 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;
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 xsize;
- struct vattr vattr;
- struct proc *p = current_proc();
- struct nfsmount *nmp = VFSTONFS(vp->v_mount);
+ kauth_cred_t cred;
+ proc_t p;
+ struct nfsnode *np = VTONFS(vp);
+ int biosize, xsize, iosize;
+ 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 nocommit = flags & UPL_NOCOMMIT;
+ int nofreeupl = flags & UPL_NOCOMMIT;
+ upl_page_info_t *plinfo;
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 322)) | DBG_FUNC_NONE,
- (int)f_offset, size, pl, pl_offset, 0);
+ FSDBG(322, vp, f_offset, size, flags);
+ if (pl == (upl_t)NULL)
+ panic("nfs_pagein: no upl");
if (UBCINVALID(vp)) {
-#if DIAGNOSTIC
- panic("nfs_pagein: invalid vp");
-#endif /* DIAGNOSTIC */
+ printf("nfs_pagein: invalid vnode 0x%x", (int)vp);
+ if (!nofreeupl)
+ (void) ubc_upl_abort(pl, 0);
return (EPERM);
}
-
UBCINFOCHECK("nfs_pagein", vp);
- if(pl == (upl_t)NULL) {
- panic("nfs_pagein: no upl");
- }
-
- cred = ubc_getcred(vp);
- if (cred == NOCRED)
- cred = ap->a_cred;
- if (size <= 0)
+ if (size <= 0) {
+ printf("nfs_pagein: invalid size %d", size);
+ if (!nofreeupl)
+ (void) ubc_upl_abort(pl, 0);
return (EINVAL);
-
- if (f_offset < 0 || f_offset >= np->n_size
- || (f_offset & PAGE_MASK_64)) {
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset, size,
+ }
+ 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,
UPL_ABORT_ERROR | UPL_ABORT_FREE_ON_EMPTY);
return (EINVAL);
}
- auio.uio_iov = &aiov;
- auio.uio_iovcnt = 1;
+ cred = ubc_getcred(vp);
+ if (cred == NOCRED)
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(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;
-
-
- 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);
+ auio.uio_procp = p;
-#if 0 /* Why bother? */
-/* DO NOT BOTHER WITH "approximately maintained cache consistency" */
-/* Does not make sense in paging paths -- Umesh*/
- /*
- * For nfs, cache consistency can only be maintained approximately.
- * Although RFC1094 does not specify the criteria, the following is
- * believed to be compatible with the reference port.
- * For nqnfs, full cache consistency is maintained within the loop.
- * For nfs:
- * If the file's modify time on the server has changed since the
- * last read rpc or you have written to the file,
- * you may have lost data cache consistency with the
- * server, so flush all of the file's data out of the cache.
- * Then force a getattr rpc to ensure that you have up to date
- * attributes.
- * NB: This implies that cache data can be read when up to
- * NFS_ATTRTIMEO seconds out of date. If you find that you need current
- * attributes this could be forced by setting n_attrstamp to 0 before
- * the VOP_GETATTR() call.
- */
- if ((nmp->nm_flag & NFSMNT_NQNFS) == 0) {
- if (np->n_flag & NMODIFIED) {
- np->n_attrstamp = 0;
- error = VOP_GETATTR(vp, &vattr, cred, p);
- if (error) {
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset,
- size,
- UPL_ABORT_ERROR |
- UPL_ABORT_FREE_ON_EMPTY);
- return (error);
- }
- np->n_mtime = vattr.va_mtime.tv_sec;
- } else {
- error = VOP_GETATTR(vp, &vattr, cred, p);
- if (error){
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_ERROR |
- UPL_ABORT_FREE_ON_EMPTY);
- return (error);
- }
- if (np->n_mtime != vattr.va_mtime.tv_sec) {
- error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
- if (error){
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_ERROR |
- UPL_ABORT_FREE_ON_EMPTY);
- return (error);
- }
- np->n_mtime = vattr.va_mtime.tv_sec;
- }
- }
+ nmp = VFSTONFS(vnode_mount(vp));
+ if (!nmp) {
+ if (!nofreeupl)
+ ubc_upl_abort_range(pl, pl_offset, size,
+ UPL_ABORT_ERROR | UPL_ABORT_FREE_ON_EMPTY);
+ return (ENXIO);
}
-#endif 0 /* Why bother? */
+ if ((nmp->nm_flag & NFSMNT_NFSV3) && !(nmp->nm_state & NFSSTA_GOTFSINFO))
+ (void)nfs_fsinfo(nmp, vp, cred, p);
+ biosize = vfs_statfs(vnode_mount(vp))->f_iosize;
- kernel_upl_map(kernel_map, pl, &ioaddr);
+ plinfo = ubc_upl_pageinfo(pl);
+ ubc_upl_map(pl, &ioaddr);
ioaddr += pl_offset;
xsize = size;
do {
- uio->uio_resid = min(biosize, xsize);
- aiov.iov_len = uio->uio_resid;
- aiov.iov_base = (caddr_t)ioaddr;
-
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 322)) | DBG_FUNC_NONE,
- (int)uio->uio_offset, uio->uio_resid, ioaddr, xsize, 0);
-
-#warning nfs_pagein does not support NQNFS yet.
-#if 0 /* why bother? */
-/* NO RESOURCES TO FIX NQNFS CASE */
-/* We need to deal with this later -- Umesh */
/*
- * Get a valid lease. If cached data is stale, flush it.
+ * It would be nice to be able to issue all these requests
+ * in parallel instead of waiting for each one to complete
+ * before sending the next one.
+ * XXX Should we align these requests to block boundaries?
*/
- if (nmp->nm_flag & NFSMNT_NQNFS) {
- if (NQNFS_CKINVALID(vp, np, ND_READ)) {
- do {
- error = nqnfs_getlease(vp, ND_READ, cred, p);
- } while (error == NQNFS_EXPIRED);
- if (error){
- kernel_upl_unmap(kernel_map, pl);
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset,
- size ,UPL_ABORT_ERROR |
- UPL_ABORT_FREE_ON_EMPTY);
-
- return (error);
- }
- if (np->n_lrev != np->n_brev ||
- (np->n_flag & NQNFSNONCACHE)) {
- error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
- if (error) {
- kernel_upl_unmap(kernel_map, pl);
- if (!nocommit)
- kernel_upl_abort_range(pl,
- pl_offset,size ,
- UPL_ABORT_ERROR | UPL_ABORT_FREE_ON_EMPTY);
- return (error);
- }
- np->n_brev = np->n_lrev;
- }
- }
- }
-#endif 0 /* why bother? */
-
- if (np->n_flag & NQNFSNONCACHE) {
- error = nfs_readrpc(vp, uio, cred);
- kernel_upl_unmap(kernel_map, pl);
-
- if (!nocommit) {
- if(error)
- kernel_upl_abort_range(pl, pl_offset, size ,
- UPL_ABORT_ERROR | UPL_ABORT_FREE_ON_EMPTY);
- else
- kernel_upl_commit_range(pl,
- pl_offset, size,
- UPL_COMMIT_CLEAR_DIRTY
- | UPL_COMMIT_FREE_ON_EMPTY,
- UPL_GET_INTERNAL_PAGE_LIST(pl),
- MAX_UPL_TRANSFER);
- }
- return (error);
- }
-
+ iosize = min(biosize, xsize);
+ 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, xsize);
/*
* 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, ioaddr, 2);
-#endif /* UBC_DEBUG */
- nfsstats.pageins++;
- error = nfs_readrpc(vp, uio, cred);
+#ifdef UPL_DEBUG
+ upl_ubc_alias_set(pl, current_thread(), 2);
+#endif /* UPL_DEBUG */
+ OSAddAtomic(1, (SInt32*)&nfsstats.pageins);
- if (!error) {
- int zoff;
- int zcnt;
+ error = nfs_readrpc(vp, uio, cred, p);
- if (uio->uio_resid) {
+ if (!error) {
+ if (uio_uio_resid(uio)) {
/*
- * 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
+ * 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.
*/
- zcnt = uio->uio_resid;
- zoff = biosize - zcnt;
+ // LP64todo - fix this
+ int zcnt = uio_uio_resid(uio);
+ int zoff = iosize - zcnt;
bzero((char *)ioaddr + zoff, zcnt);
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 324)) | DBG_FUNC_NONE,
- (int)uio->uio_offset, zoff, zcnt, ioaddr, 0);
-
+ FSDBG(324, uio->uio_offset, zoff, zcnt, ioaddr);
uio->uio_offset += zcnt;
}
- ioaddr += biosize;
- xsize -= biosize;
- } else
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 322)) | DBG_FUNC_NONE,
- (int)uio->uio_offset, uio->uio_resid, error, -1, 0);
-
- 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;
+ ioaddr += iosize;
+ xsize -= iosize;
+ } else {
+ FSDBG(322, uio->uio_offset, uio_uio_resid(uio), error, -1);
}
+ nmp = VFSTONFS(vnode_mount(vp));
} while (error == 0 && xsize > 0);
- kernel_upl_unmap(kernel_map, pl);
+ ubc_upl_unmap(pl);
- if (!nocommit) {
+ if (!nofreeupl) {
if (error)
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_ERROR | UPL_ABORT_FREE_ON_EMPTY);
+ ubc_upl_abort_range(pl, pl_offset, size,
+ UPL_ABORT_ERROR |
+ UPL_ABORT_FREE_ON_EMPTY);
else
- kernel_upl_commit_range(pl, pl_offset, size,
- UPL_COMMIT_CLEAR_DIRTY
- | UPL_COMMIT_FREE_ON_EMPTY,
- UPL_GET_INTERNAL_PAGE_LIST(pl),
- MAX_UPL_TRANSFER);
+ ubc_upl_commit_range(pl, pl_offset, size,
+ UPL_COMMIT_CLEAR_DIRTY |
+ UPL_COMMIT_FREE_ON_EMPTY);
}
-
return (error);
}
+
/*
* Vnode op for pageout using UPL
* Derived from nfs_write()
*/
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
+ 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;
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 bufsize;
- int n = 0, on, error = 0, iomode, must_commit, s;
+ kauth_cred_t cred;
+ proc_t p;
+ struct nfsbuf *bp;
+ struct nfsmount *nmp = VFSTONFS(vnode_mount(vp));
+ daddr64_t lbn;
+ int error = 0, iomode;
off_t off;
vm_offset_t ioaddr;
struct uio auio;
- struct iovec aiov;
- struct uio * uio = &auio;
- int nocommit = flags & UPL_NOCOMMIT;
- int iosize;
- int pgsize;
+ struct iovec_32 aiov;
+ int nofreeupl = flags & UPL_NOCOMMIT;
+ size_t biosize, iosize, pgsize, xsize;
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 323)) | DBG_FUNC_NONE,
- (int)f_offset, size, pl, pl_offset, 0);
+ FSDBG(323, f_offset, size, pl, pl_offset);
+
+ if (pl == (upl_t)NULL)
+ panic("nfs_pageout: no upl");
if (UBCINVALID(vp)) {
-#if DIAGNOSTIC
- panic("nfs_pageout: invalid vnode");
-#endif
+ printf("nfs_pageout: invalid vnode 0x%x", (int)vp);
+ if (!nofreeupl)
+ ubc_upl_abort(pl, 0);
return (EIO);
}
UBCINFOCHECK("nfs_pageout", vp);
- if (size <= 0)
+ if (size <= 0) {
+ printf("nfs_pageout: invalid size %d", size);
+ if (!nofreeupl)
+ ubc_upl_abort(pl, 0);
return (EINVAL);
-
- if (pl == (upl_t)NULL) {
- panic("nfs_pageout: no upl");
}
- /*
- * 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 (biosize & PAGE_MASK)
- panic("nfs_pageout(%x): biosize not page aligned", biosize);
-
+ if (!nmp) {
+ if (!nofreeupl)
+ ubc_upl_abort(pl, UPL_ABORT_DUMP_PAGES|UPL_ABORT_FREE_ON_EMPTY);
+ return (ENXIO);
+ }
+ biosize = vfs_statfs(vnode_mount(vp))->f_iosize;
/*
- * 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)) {
- if (ISSET(bp->b_flags, B_BUSY)) {
- /* don't panic incore. just tell vm we are busy */
- (void) kernel_upl_abort(pl, NULL);
- return(EBUSY);
- };
-
- bremfree(bp);
- SET(bp->b_flags, (B_BUSY | B_INVAL));
- brelse(bp);
+ 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 = ubc_offtoblk(vp, off);
+ lck_mtx_lock(nfs_buf_mutex);
+ if ((bp = nfs_buf_incore(vp, 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);
+ /* no panic. just tell vm we are busy */
+ if (!nofreeupl)
+ 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, vp, bp, 0xd00deebc, EBUSY);
+ nfs_buf_drop(bp);
+ lck_mtx_unlock(nfs_buf_mutex);
+ 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);
+ if (ISSET(bp->nb_flags, NB_NEEDCOMMIT)) {
+ CLR(bp->nb_flags, NB_NEEDCOMMIT);
+ np->n_needcommitcnt--;
+ CHECK_NEEDCOMMITCNT(np);
+ }
+ nfs_buf_release(bp, 1);
+ } else {
+ lck_mtx_unlock(nfs_buf_mutex);
}
- splx(s);
}
cred = ubc_getcred(vp);
if (cred == NOCRED)
- cred = ap->a_cred;
+ cred = vfs_context_ucred(ap->a_context);
+ p = vfs_context_proc(ap->a_context);
if (np->n_flag & NWRITEERR) {
np->n_flag &= ~NWRITEERR;
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_FREE_ON_EMPTY);
+ if (!nofreeupl)
+ ubc_upl_abort_range(pl, pl_offset, size,
+ UPL_ABORT_FREE_ON_EMPTY);
return (np->n_error);
}
- if ((nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_GOTFSINFO)) == NFSMNT_NFSV3)
- (void)nfs_fsinfo(nmp, vp, cred, p);
-
- if (f_offset < 0 || f_offset >= np->n_size ||
- (f_offset & PAGE_MASK_64) || (size & PAGE_MASK)) {
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_FREE_ON_EMPTY);
+ if ((nmp->nm_flag & NFSMNT_NFSV3) && !(nmp->nm_state & NFSSTA_GOTFSINFO))
+ nfs_fsinfo(nmp, vp, cred, p);
+
+ if (f_offset < 0 || f_offset >= (off_t)np->n_size ||
+ f_offset & PAGE_MASK_64 || size & PAGE_MASK_64) {
+ if (!nofreeupl)
+ ubc_upl_abort_range(pl, pl_offset, size,
+ UPL_ABORT_FREE_ON_EMPTY);
return (EINVAL);
}
- kernel_upl_map(kernel_map, pl, &ioaddr);
+ 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;
+ pgsize = round_page_64(xsize);
if (size > pgsize) {
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset + pgsize, size - pgsize,
- UPL_ABORT_FREE_ON_EMPTY);
+ 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;
-
- 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);
-
- KERNEL_DEBUG((FSDBG_CODE(DBG_FSRW, 321)) | DBG_FUNC_NONE,
- (int)np->n_size, (int)f_offset, (int)f_offset + io, size - io, 0);
+ bzero((caddr_t)(ioaddr + io), size - io);
+ FSDBG(321, np->n_size, f_offset, f_offset + io, size - io);
}
- do {
-
-#warning nfs_pageout does not support NQNFS yet.
-#if 0 /* why bother? */
-/* NO RESOURCES TO FIX NQNFS CASE */
-/* We need to deal with this later -- Umesh */
+ 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 = p;
+ do {
/*
- * Check for a valid write lease.
+ * It would be nice to be able to issue all these requests
+ * in parallel instead of waiting for each one to complete
+ * before sending the next one.
+ * XXX Should we align these requests to block boundaries?
*/
- if ((nmp->nm_flag & NFSMNT_NQNFS) &&
- NQNFS_CKINVALID(vp, np, ND_WRITE)) {
- do {
- error = nqnfs_getlease(vp, ND_WRITE, cred, p);
- } while (error == NQNFS_EXPIRED);
- if (error) {
- kernel_upl_unmap(kernel_map, pl);
- if (!nocommit)
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_FREE_ON_EMPTY);
- return (error);
- }
- if (np->n_lrev != np->n_brev ||
- (np->n_flag & NQNFSNONCACHE)) {
- error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
- if (error) {
- kernel_upl_unmap(kernel_map, pl);
- if (!nocommit)
- kernel_upl_abort_range(pl,
- pl_offset, size,
- UPL_ABORT_FREE_ON_EMPTY);
- return (error);
- }
- np->n_brev = np->n_lrev;
- }
- }
-#endif 0 /* why bother? */
-
- if ((np->n_flag & NQNFSNONCACHE) && uio->uio_iovcnt == 1) {
- iomode = NFSV3WRITE_FILESYNC;
- error = nfs_writerpc(vp, uio, cred, &iomode, &must_commit);
- if (must_commit)
- nfs_clearcommit(vp->v_mount);
- kernel_upl_unmap(kernel_map, pl);
-
- /* see comments below after other nfs_writerpc and ESTALE */
- if (error == ESTALE) {
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_DUMP_PAGES|UPL_ABORT_FREE_ON_EMPTY);
- } else {
- if (!nocommit) {
- if(error)
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_FREE_ON_EMPTY);
- else
- kernel_upl_commit_range(pl,
- pl_offset, size,
- UPL_COMMIT_CLEAR_DIRTY | UPL_COMMIT_FREE_ON_EMPTY,
- UPL_GET_INTERNAL_PAGE_LIST(pl), MAX_UPL_TRANSFER);
- }
- }
- return (error);
- }
- nfsstats.pageouts++;
- lbn = uio->uio_offset / biosize;
- on = uio->uio_offset & (biosize-1);
- n = min((unsigned)(biosize - on), uio->uio_resid);
-again:
- bufsize = biosize;
-#if 0
- if ((lbn + 1) * biosize > np->n_size) {
- bufsize = np->n_size - lbn * biosize;
- bufsize = (bufsize + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
- }
-#endif
- vp->v_numoutput++;
-
- np->n_flag |= NMODIFIED;
+ iosize = min(biosize, xsize);
+ uio_uio_resid_set(&auio, iosize);
+ aiov.iov_len = iosize;
+ aiov.iov_base = (uintptr_t)ioaddr;
+ auio.uio_iovs.iov32p = &aiov;
+ auio.uio_iovcnt = 1;
-#if 0 /* why bother? */
-/* NO RESOURCES TO FIX NQNFS CASE */
-/* We need to deal with this later -- Umesh */
- /*
- * Check for valid write lease and get one as required.
- * In case getblk() and/or bwrite() delayed us.
- */
- if ((nmp->nm_flag & NFSMNT_NQNFS) &&
- NQNFS_CKINVALID(vp, np, ND_WRITE)) {
- do {
- error = nqnfs_getlease(vp, ND_WRITE, cred, p);
- } while (error == NQNFS_EXPIRED);
- if (error)
- goto cleanup;
+ FSDBG(323, auio.uio_offset, uio_uio_resid(&auio), ioaddr, xsize);
+ OSAddAtomic(1, (SInt32*)&nfsstats.pageouts);
- if (np->n_lrev != np->n_brev ||
- (np->n_flag & NQNFSNONCACHE)) {
- error = nfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
- if (error) {
- kernel_upl_unmap(kernel_map, pl);
- if (!nocommit)
- kernel_upl_abort_range(pl,
- pl_offset,
- size,
- UPL_ABORT_FREE_ON_EMPTY);
-
- return (error);
- }
- np->n_brev = np->n_lrev;
- goto again;
- }
- }
-#endif 0 /* why bother? */
+ vnode_startwrite(vp);
+ /* 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);
- vp->v_numoutput--;
-
+ error = nfs_writerpc(vp, &auio, cred, p, &iomode, NULL);
+ vnode_writedone(vp);
if (error)
goto cleanup;
-
- if (n > 0) {
- uio->uio_resid -= n;
- uio->uio_offset += n;
- uio->uio_iov->iov_base += n;
- uio->uio_iov->iov_len -= n;
- }
- } while (uio->uio_resid > 0 && n > 0);
+ /* Note: no need to check uio_resid, because */
+ /* it'll only be set if there was an error. */
+ ioaddr += iosize;
+ xsize -= iosize;
+ } while (xsize > 0);
cleanup:
- kernel_upl_unmap(kernel_map, pl);
- /*
- * EStale is special. In this case, we want vm to dump out
- * the pages. Better yet, sever the object so we don't come
- * back here on each page of the object to page out. For now,
- * just dump.
- * XXX What about !nocommit case? Should ESTALE only be checked
- * in that portion? - EKN
- */
- if (error == ESTALE) {
- kernel_upl_abort_range(pl, pl_offset, size,
- UPL_ABORT_DUMP_PAGES|UPL_ABORT_FREE_ON_EMPTY);
- } else {
- if (!nocommit) {
- if(error)
- kernel_upl_abort_range(pl, pl_offset, pgsize,
- UPL_ABORT_FREE_ON_EMPTY);
- else
- kernel_upl_commit_range(pl, pl_offset, pgsize,
- UPL_COMMIT_CLEAR_DIRTY | UPL_COMMIT_FREE_ON_EMPTY,
- UPL_GET_INTERNAL_PAGE_LIST(pl), MAX_UPL_TRANSFER);
- }
+ 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
+ * 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
+ * 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
+ * analysis. Errors that could be transient, networking ones,
+ * we let vm "retry". Lastly, errors that we retry, but may have potential
+ * to storm the network, we "retrywithsleep". "sever" will be used in
+ * in the future to dump all pages of object for cases like ESTALE.
+ * All this is the basis for the states returned and first guesses on
+ * error handling. Tweaking expected as more statistics are gathered.
+ * Note, in the long run we may need another more robust solution to
+ * 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 = 0;
+ short action = nfs_pageouterrorhandler(error);
+
+ switch (action) {
+ case DUMP:
+ abortflags = UPL_ABORT_DUMP_PAGES|UPL_ABORT_FREE_ON_EMPTY;
+ 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]++;
+ break;
+ case RETRY:
+ abortflags = UPL_ABORT_FREE_ON_EMPTY;
+ break;
+ case RETRYWITHSLEEP:
+ abortflags = UPL_ABORT_FREE_ON_EMPTY;
+ /* pri unused. PSOCK for placeholder. */
+ 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);
+ /* return error in all cases above */
+
+ } 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;
+ 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;
+ mount_t mp = vnode_mount(vp);
+
+ if (!mp)
+ return (ENXIO);
- biosize = min(vp->v_mount->mnt_stat.f_iosize, PAGE_SIZE); /* nfs_bio.c */
+ biosize = vfs_statfs(mp)->f_iosize;
- *ap->a_offset = (off_t)(ap->a_lblkno * biosize);
+ *ap->a_offset = (off_t)(ap->a_lblkno * biosize);
return (0);
}
-/* Blktooff derives file offset given a logical block number */
static int
nfs_offtoblk(ap)
- struct vop_offtoblk_args /* {
- struct vnode *a_vp;
- off_t a_offset;
- daddr_t *a_lblkno;
+ 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;
+ mount_t mp = vnode_mount(vp);
- biosize = min(vp->v_mount->mnt_stat.f_iosize, PAGE_SIZE); /* nfs_bio.c */
+ if (!mp)
+ return (ENXIO);
- *ap->a_lblkno = (daddr_t)(ap->a_offset / biosize);
+ biosize = vfs_statfs(mp)->f_iosize;
+
+ *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