xnu-4903.231.4.tar.gz

[apple/xnu.git] / bsd / vfs / vfs_conf.c

diff --git a/bsd/vfs/vfs_conf.c b/bsd/vfs/vfs_conf.c
index 0442e9b646a8fa228f847ce64ab61b5ea8f1a74f..af7ba7c5b8cb84dfbf022e4637db1811f4e27416 100644 (file)
--- a/bsd/vfs/vfs_conf.c
+++ b/bsd/vfs/vfs_conf.c
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple 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,
  * 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 */
 /*
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*


@@ -54,147 +60,109 @@
  *
  *     @(#)vfs_conf.c  8.11 (Berkeley) 5/10/95
  */
  *
  *     @(#)vfs_conf.c  8.11 (Berkeley) 5/10/95
  */

+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */

 
 #include <sys/param.h>
 #include <sys/systm.h>
 
 #include <sys/param.h>
 #include <sys/systm.h>

-#include <sys/mount.h>
-#include <sys/vnode.h>
+#include <sys/mount_internal.h>
+#include <sys/vnode_internal.h>

 
 /*
  * These define the root filesystem, device, and root filesystem type.
  */
 struct mount *rootfs;
 struct vnode *rootvnode;
 
 /*
  * These define the root filesystem, device, and root filesystem type.
  */
 struct mount *rootfs;
 struct vnode *rootvnode;

-int (*mountroot)() = NULL;
+
+#ifdef CONFIG_IMGSRC_ACCESS
+struct vnode *imgsrc_rootvnodes[MAX_IMAGEBOOT_NESTING];        /* [0] -> source volume, [1] -> first disk image */
+#endif /* CONFIG_IMGSRC_ACCESS */
+
+int (*mountroot)(void) = NULL;

 
 /*
  * Set up the initial array of known filesystem types.
  */
 
 /*
  * Set up the initial array of known filesystem types.
  */

-extern struct vfsops ufs_vfsops;
-extern int ffs_mountroot();
-extern struct vfsops lfs_vfsops;
-extern int lfs_mountroot();

 extern struct vfsops mfs_vfsops;
 extern struct vfsops mfs_vfsops;

-extern int mfs_mountroot();
-extern  struct vfsops hfs_vfsops;
-extern int hfs_mountroot();
-extern  struct vfsops volfs_vfsops;
-extern struct vfsops cd9660_vfsops;
-extern int cd9660_mountroot();
+extern int mfs_mountroot(mount_t, vnode_t, vfs_context_t);     /* dead */

 extern struct vfsops nfs_vfsops;
 extern struct vfsops nfs_vfsops;

-extern int nfs_mountroot();
+extern int nfs_mountroot(void);

 extern struct vfsops afs_vfsops;
 extern struct vfsops afs_vfsops;

-extern struct vfsops procfs_vfsops;

 extern struct vfsops null_vfsops;
 extern struct vfsops null_vfsops;

-extern struct vfsops union_vfsops;
-extern struct vfsops umap_vfsops;
-extern struct vfsops portal_vfsops;
-extern struct vfsops fdesc_vfsops;
-extern struct vfsops kernfs_vfsops;

 extern struct vfsops devfs_vfsops;
 extern struct vfsops devfs_vfsops;

+extern struct vfsops routefs_vfsops;
+extern  struct vfsops nullfs_vfsops;
+
+#if MOCKFS
+extern struct vfsops mockfs_vfsops;
+extern int mockfs_mountroot(mount_t, vnode_t, vfs_context_t);
+#endif /* MOCKFS */

 
 /*
 
 /*

- * Set up the filesystem operations for vnodes.
+ * For nfs_mountroot(void) cast.  nfs_mountroot ignores its parameters, if
+ * invoked through this table.

  */
  */

-static struct vfsconf vfsconflist[] = {
-       /* HFS/HFS+ Filesystem */
-#if HFS
-       { &hfs_vfsops, "hfs", 17, 0, MNT_LOCAL | MNT_DOVOLFS, hfs_mountroot, NULL },
-#endif
-
-       /* Fast Filesystem */
-#if FFS
-       { &ufs_vfsops, "ufs", 1, 0, MNT_LOCAL, ffs_mountroot, NULL },
-#endif
-
-       /* ISO9660 (aka CDROM) Filesystem */
-#if CD9660
-       { &cd9660_vfsops, "cd9660", 14, 0, MNT_LOCAL | MNT_DOVOLFS, cd9660_mountroot, NULL },
-#endif
-
-       /* Log-based Filesystem */
-#if LFS
-       { &lfs_vfsops, "lfs", 5, 0, MNT_LOCAL, lfs_mountroot, NULL },
-#endif
-
-       /* Memory-based Filesystem */
-#if MFS
-       { &mfs_vfsops, "mfs", 3, 0, MNT_LOCAL, mfs_mountroot, NULL },
-#endif
+typedef int (*mountroot_t)(mount_t, vnode_t, vfs_context_t);
+
+enum fs_type_num {
+       FT_NFS = 2,
+       FT_DEVFS = 19,
+       FT_SYNTHFS = 20,
+       FT_ROUTEFS = 21,
+       FT_NULLFS = 22,
+       FT_MOCKFS  = 0x6D6F636B
+};

 
 

+/*
+ * Set up the filesystem operations for vnodes.
+ */
+static struct vfstable vfstbllist[] = {

        /* Sun-compatible Network Filesystem */
 #if NFSCLIENT
        /* Sun-compatible Network Filesystem */
 #if NFSCLIENT

-       { &nfs_vfsops, "nfs", 2, 0, 0, nfs_mountroot, NULL },
+       { &nfs_vfsops, "nfs", FT_NFS, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFSPREFLIGHT | VFC_VFS64BITREADY | VFC_VFSREADDIR_EXTENDED, NULL, 0, NULL},

 #endif
 
 #endif
 

-       /* Andrew Filesystem */
-#if AFS
-       { &afs_vfsops, "andrewfs", 13, 0, 0, afs_mountroot, NULL },
+       /* Device Filesystem */
+#if DEVFS
+#if CONFIG_MACF
+       { &devfs_vfsops, "devfs", FT_DEVFS, 0, MNT_MULTILABEL, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL},
+#else
+       { &devfs_vfsops, "devfs", FT_DEVFS, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL},
+#endif /* MAC */

 #endif
 
 #endif
 

-       /* /proc Filesystem */
-#if PROCFS
-       { &procfs_vfsops, "procfs", 12, 0, 0, NULL, NULL },
-#endif
+#ifndef __LP64__
+#endif /* __LP64__ */

 
 

-       /* Loopback (Minimal) Filesystem Layer */

 #if NULLFS
 #if NULLFS

-       { &null_vfsops, "loopback", 9, 0, 0, NULL, NULL },
-#endif
-
-       /* Union (translucent) Filesystem */
-#if UNION
-       { &union_vfsops, "union", 15, 0, 0, NULL, NULL },
-#endif
-
-       /* User/Group Identifer Remapping Filesystem */
-#if UMAPFS
-       { &umap_vfsops, "umap", 10, 0, 0, NULL, NULL },
-#endif
-
-       /* Portal Filesystem */
-#if PORTAL
-       { &portal_vfsops, "portal", 8, 0, 0, NULL, NULL },
-#endif
-
-       /* File Descriptor Filesystem */
-#if FDESC
-       { &fdesc_vfsops, "fdesc", 7, 0, 0, NULL, NULL },
-#endif
-
-       /* Kernel Information Filesystem */
-#if KERNFS
-       { &kernfs_vfsops, "kernfs", 11, 0, 0, NULL, NULL },
-#endif
-
-       /* Volume ID Filesystem */
-#if VOLFS
-       { &volfs_vfsops, "volfs", 18, 0, 0, NULL, NULL },
-#endif
-       /* Device Filesystem */
-#if DEVFS
-       { &devfs_vfsops, "devfs", 19, 0, 0, NULL, NULL },
-#endif
-       {0},
-       {0},
-       {0},
-       {0},
-       {0},
-       {0},
-       {0},
-       {0},
-       {0},
-       {0}
+       { &nullfs_vfsops, "nullfs", FT_NULLFS, 0, (MNT_DONTBROWSE | MNT_RDONLY), NULL, NULL, 0, 0, VFC_VFS64BITREADY, NULL, 0, NULL},
+#endif /* NULLFS */
+
+#if MOCKFS
+       /* If we are configured for it, mockfs should always be the last standard entry (and thus the last FS we attempt mountroot with) */
+       { &mockfs_vfsops, "mockfs", FT_MOCKFS, 0, MNT_LOCAL, mockfs_mountroot, NULL, 0, 0, VFC_VFSGENERICARGS, NULL, 0, NULL},
+#endif /* MOCKFS */
+
+#if ROUTEFS
+       /* If we are configured for it, mockfs should always be the last standard entry (and thus the last FS we attempt mountroot with) */
+       { &routefs_vfsops, "routefs", FT_ROUTEFS, 0, MNT_LOCAL, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL},
+#endif /* ROUTEFS */
+       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0, NULL},
+       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0, NULL},

 };
 
 /*
 };
 
 /*

- * Initially the size of the list, vfs_init will set maxvfsconf
- * to the highest defined type number.
+ * vfs_init will set maxvfstypenum to the highest defined type number.

  */
  */

-int maxvfsslots = sizeof(vfsconflist) / sizeof (struct vfsconf);
+const int maxvfsslots = sizeof(vfstbllist) / sizeof (struct vfstable);

 int numused_vfsslots = 0;
 int numused_vfsslots = 0;

-int maxvfsconf = sizeof(vfsconflist) / sizeof (struct vfsconf);
-struct vfsconf *vfsconf = vfsconflist;
+int numregistered_fses = 0;
+int maxvfstypenum = VT_NON + 1;
+struct vfstable *vfsconf = vfstbllist;

 
 /*
  *
 
 /*
  *


@@ -203,106 +171,64 @@ struct vfsconf *vfsconf = vfsconflist;
  * vectors.  It is NULL terminated.
  *
  */
  * vectors.  It is NULL terminated.
  *
  */

-extern struct vnodeopv_desc ffs_vnodeop_opv_desc;
-extern struct vnodeopv_desc ffs_specop_opv_desc;
-extern struct vnodeopv_desc ffs_fifoop_opv_desc;
-extern struct vnodeopv_desc lfs_vnodeop_opv_desc;
-extern struct vnodeopv_desc lfs_specop_opv_desc;
-extern struct vnodeopv_desc lfs_fifoop_opv_desc;

 extern struct vnodeopv_desc mfs_vnodeop_opv_desc;
 extern struct vnodeopv_desc dead_vnodeop_opv_desc;
 extern struct vnodeopv_desc mfs_vnodeop_opv_desc;
 extern struct vnodeopv_desc dead_vnodeop_opv_desc;

+#if FIFO && SOCKETS

 extern struct vnodeopv_desc fifo_vnodeop_opv_desc;
 extern struct vnodeopv_desc fifo_vnodeop_opv_desc;

+#endif /* SOCKETS */

 extern struct vnodeopv_desc spec_vnodeop_opv_desc;
 extern struct vnodeopv_desc nfsv2_vnodeop_opv_desc;
 extern struct vnodeopv_desc spec_nfsv2nodeop_opv_desc;
 extern struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc;
 extern struct vnodeopv_desc spec_vnodeop_opv_desc;
 extern struct vnodeopv_desc nfsv2_vnodeop_opv_desc;
 extern struct vnodeopv_desc spec_nfsv2nodeop_opv_desc;
 extern struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc;

-extern struct vnodeopv_desc fdesc_vnodeop_opv_desc;
-extern struct vnodeopv_desc portal_vnodeop_opv_desc;
+extern struct vnodeopv_desc nfsv4_vnodeop_opv_desc;
+extern struct vnodeopv_desc spec_nfsv4nodeop_opv_desc;
+extern struct vnodeopv_desc fifo_nfsv4nodeop_opv_desc;

 extern struct vnodeopv_desc null_vnodeop_opv_desc;
 extern struct vnodeopv_desc null_vnodeop_opv_desc;

-extern struct vnodeopv_desc umap_vnodeop_opv_desc;
-extern struct vnodeopv_desc kernfs_vnodeop_opv_desc;
-extern struct vnodeopv_desc procfs_vnodeop_opv_desc;
-extern struct vnodeopv_desc hfs_vnodeop_opv_desc;
-extern struct vnodeopv_desc hfs_specop_opv_desc;
-extern struct vnodeopv_desc hfs_fifoop_opv_desc;
-extern struct vnodeopv_desc volfs_vnodeop_opv_desc;
-extern struct vnodeopv_desc cd9660_vnodeop_opv_desc;
-extern struct vnodeopv_desc cd9660_specop_opv_desc;
-extern struct vnodeopv_desc cd9660_fifoop_opv_desc;
-extern struct vnodeopv_desc union_vnodeop_opv_desc;
-extern struct vnodeopv_desc procfs_vnodeop_opv_desc;

 extern struct vnodeopv_desc devfs_vnodeop_opv_desc;
 extern struct vnodeopv_desc devfs_spec_vnodeop_opv_desc;
 extern struct vnodeopv_desc devfs_vnodeop_opv_desc;
 extern struct vnodeopv_desc devfs_spec_vnodeop_opv_desc;

+#if FDESC
+extern struct vnodeopv_desc devfs_devfd_vnodeop_opv_desc;
+extern struct vnodeopv_desc devfs_fdesc_vnodeop_opv_desc;
+#endif /* FDESC */
+
+#if MOCKFS
+extern struct vnodeopv_desc mockfs_vnodeop_opv_desc;
+#endif /* MOCKFS */
+
+extern struct vnodeopv_desc nullfs_vnodeop_opv_desc;

 
 struct vnodeopv_desc *vfs_opv_descs[] = {
 
 struct vnodeopv_desc *vfs_opv_descs[] = {

-       &ffs_vnodeop_opv_desc,
-       &ffs_specop_opv_desc,
-#if FIFO
-       &ffs_fifoop_opv_desc,
-#endif

        &dead_vnodeop_opv_desc,
        &dead_vnodeop_opv_desc,

-#if FIFO
+#if FIFO && SOCKETS

        &fifo_vnodeop_opv_desc,
 #endif
        &spec_vnodeop_opv_desc,
        &fifo_vnodeop_opv_desc,
 #endif
        &spec_vnodeop_opv_desc,

-#if LFS
-       &lfs_vnodeop_opv_desc,
-       &lfs_specop_opv_desc,
-#if FIFO
-       &lfs_fifoop_opv_desc,
-#endif
-#endif

 #if MFS
        &mfs_vnodeop_opv_desc,
 #endif
 #if NFSCLIENT
        &nfsv2_vnodeop_opv_desc,
        &spec_nfsv2nodeop_opv_desc,
 #if MFS
        &mfs_vnodeop_opv_desc,
 #endif
 #if NFSCLIENT
        &nfsv2_vnodeop_opv_desc,
        &spec_nfsv2nodeop_opv_desc,

+       &nfsv4_vnodeop_opv_desc,
+       &spec_nfsv4nodeop_opv_desc,

 #if FIFO
        &fifo_nfsv2nodeop_opv_desc,
 #if FIFO
        &fifo_nfsv2nodeop_opv_desc,

+       &fifo_nfsv4nodeop_opv_desc,

 #endif
 #endif
 #endif
 #endif

-#if FDESC
-       &fdesc_vnodeop_opv_desc,
-#endif
-#if PORTAL
-       &portal_vnodeop_opv_desc,
-#endif
-#if NULLFS
-       &null_vnodeop_opv_desc,
-#endif
-#if UMAPFS
-       &umap_vnodeop_opv_desc,
-#endif
-#if KERNFS
-       &kernfs_vnodeop_opv_desc,
-#endif
-#if PROCFS
-       &procfs_vnodeop_opv_desc,
-#endif
-#if HFS
-       &hfs_vnodeop_opv_desc,
-       &hfs_specop_opv_desc,
-#if FIFO
-       &hfs_fifoop_opv_desc,
-#endif
-#endif
-#if CD9660
-       &cd9660_vnodeop_opv_desc,
-       &cd9660_specop_opv_desc,
-#if FIFO
-       &cd9660_fifoop_opv_desc,
-#endif
-#endif
-#if UNION
-       &union_vnodeop_opv_desc,
-#endif
-#if VOLFS
-       &volfs_vnodeop_opv_desc,
-#endif

 #if DEVFS
        &devfs_vnodeop_opv_desc,
        &devfs_spec_vnodeop_opv_desc,
 #if DEVFS
        &devfs_vnodeop_opv_desc,
        &devfs_spec_vnodeop_opv_desc,

-#endif
+#if FDESC
+       &devfs_devfd_vnodeop_opv_desc,
+       &devfs_fdesc_vnodeop_opv_desc,
+#endif /* FDESC */
+#endif /* DEVFS */
+#if NULLFS
+       &nullfs_vnodeop_opv_desc,
+#endif /* NULLFS */
+#if MOCKFS
+       &mockfs_vnodeop_opv_desc,
+#endif /* MOCKFS */

        NULL
 };
        NULL
 };