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 467eb00b2a0d4efb9bf413ed33745a7bd651c846..af7ba7c5b8cb84dfbf022e4637db1811f4e27416 100644 (file)
--- a/bsd/vfs/vfs_conf.c
+++ b/bsd/vfs/vfs_conf.c
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -72,18 +72,16 @@
 #include <sys/mount_internal.h>
 #include <sys/vnode_internal.h>
 
 #include <sys/mount_internal.h>
 #include <sys/vnode_internal.h>
 

-#ifndef __LP64__ 
-#define VFS_THREAD_SAFE_FLAG VFC_VFSTHREADSAFE /* This is only defined for 32-bit */
-#else 
-#define VFS_THREAD_SAFE_FLAG 0
-#endif /* __LP64__  */
-
-

 /*
  * 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;

+
+#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;
 
 /*
 int (*mountroot)(void) = NULL;
 
 /*


@@ -91,14 +89,18 @@ int (*mountroot)(void) = NULL;
  */
 extern struct vfsops mfs_vfsops;
 extern int mfs_mountroot(mount_t, vnode_t, vfs_context_t);     /* dead */
  */
 extern struct vfsops mfs_vfsops;
 extern int mfs_mountroot(mount_t, vnode_t, vfs_context_t);     /* dead */

-extern  struct vfsops hfs_vfsops;
-extern int hfs_mountroot(mount_t, vnode_t, vfs_context_t);

 extern struct vfsops nfs_vfsops;
 extern int nfs_mountroot(void);
 extern struct vfsops afs_vfsops;
 extern struct vfsops null_vfsops;
 extern struct vfsops nfs_vfsops;
 extern int nfs_mountroot(void);
 extern struct vfsops afs_vfsops;
 extern struct vfsops null_vfsops;

-extern struct vfsops union_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 */

 
 /*
  * For nfs_mountroot(void) cast.  nfs_mountroot ignores its parameters, if
 
 /*
  * For nfs_mountroot(void) cast.  nfs_mountroot ignores its parameters, if


@@ -106,83 +108,60 @@ extern    struct vfsops devfs_vfsops;
  */
 typedef int (*mountroot_t)(mount_t, vnode_t, vfs_context_t);
 
  */
 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[] = {
 /*
  * Set up the filesystem operations for vnodes.
  */
 static struct vfstable vfstbllist[] = {

-       /* HFS/HFS+ Filesystem */
-#if HFS
-       { &hfs_vfsops, "hfs", 17, 0, (MNT_LOCAL | MNT_DOVOLFS), hfs_mountroot, NULL, 0, 0, VFC_VFSLOCALARGS | VFC_VFSREADDIR_EXTENDED | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY | VFC_VFSVNOP_PAGEOUTV2, NULL, 0},
-#endif
-
-       /* Memory-based Filesystem */
-
-#ifndef __LP64__
-#if MFS
-       { &mfs_vfsops, "mfs", 3, 0, MNT_LOCAL, mfs_mountroot, NULL, 0, 0, VFC_VFSGENERICARGS, NULL, 0},
-#endif
-#endif /* __LP64__ */
-

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

-       { &nfs_vfsops, "nfs", 2, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFSPREFLIGHT | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY | VFC_VFSREADDIR_EXTENDED, NULL, 0},
-#endif
-
-       /* Andrew Filesystem */
-#ifndef __LP64__
-#if AFS
-       { &afs_vfsops, "andrewfs", 13, 0, 0, afs_mountroot, NULL, 0, 0, VFC_VFSGENERICARGS , NULL, 0},
-#endif
-#endif /* __LP64__ */
-
-       /* Loopback (Minimal) Filesystem Layer */
-#ifndef __LP64__
-#if NULLFS
-       { &null_vfsops, "loopback", 9, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS , NULL, 0},
-#endif
-#endif /* __LP64__ */
-
-       /* Union (translucent) Filesystem */
-#if UNION
-       { &union_vfsops, "unionfs", 15, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY, NULL, 0},
+       { &nfs_vfsops, "nfs", FT_NFS, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFSPREFLIGHT | VFC_VFS64BITREADY | VFC_VFSREADDIR_EXTENDED, NULL, 0, NULL},

 #endif
 
        /* Device Filesystem */
 #if DEVFS
 #if CONFIG_MACF
 #endif
 
        /* Device Filesystem */
 #if DEVFS
 #if CONFIG_MACF

-       { &devfs_vfsops, "devfs", 19, 0, (MNT_DONTBROWSE | MNT_MULTILABEL), NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY, NULL, 0},
+       { &devfs_vfsops, "devfs", FT_DEVFS, 0, MNT_MULTILABEL, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL},

 #else
 #else

-       { &devfs_vfsops, "devfs", 19, 0, MNT_DONTBROWSE, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY, NULL, 0},
+       { &devfs_vfsops, "devfs", FT_DEVFS, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL},

 #endif /* MAC */
 #endif
 
 #ifndef __LP64__
 #endif /* __LP64__ */
 
 #endif /* MAC */
 #endif
 
 #ifndef __LP64__
 #endif /* __LP64__ */
 

-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0},
-       {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}
+#if NULLFS
+       { &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(vfstbllist) / sizeof (struct vfstable);
+const int maxvfsslots = sizeof(vfstbllist) / sizeof (struct vfstable);

 int numused_vfsslots = 0;
 int numused_vfsslots = 0;

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

 struct vfstable *vfsconf = vfstbllist;
 
 /*
 struct vfstable *vfsconf = vfstbllist;
 
 /*


@@ -205,11 +184,6 @@ 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 spec_nfsv4nodeop_opv_desc;
 extern struct vnodeopv_desc fifo_nfsv4nodeop_opv_desc;
 extern struct vnodeopv_desc null_vnodeop_opv_desc;

-extern struct vnodeopv_desc hfs_vnodeop_opv_desc;
-extern struct vnodeopv_desc hfs_std_vnodeop_opv_desc;
-extern struct vnodeopv_desc hfs_specop_opv_desc;
-extern struct vnodeopv_desc hfs_fifoop_opv_desc;
-extern struct vnodeopv_desc union_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_vnodeop_opv_desc;
 extern struct vnodeopv_desc devfs_spec_vnodeop_opv_desc;
 #if FDESC


@@ -217,6 +191,12 @@ extern struct vnodeopv_desc devfs_devfd_vnodeop_opv_desc;
 extern struct vnodeopv_desc devfs_fdesc_vnodeop_opv_desc;
 #endif /* FDESC */
 
 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[] = {
        &dead_vnodeop_opv_desc,
 #if FIFO && SOCKETS
 struct vnodeopv_desc *vfs_opv_descs[] = {
        &dead_vnodeop_opv_desc,
 #if FIFO && SOCKETS


@@ -236,20 +216,6 @@ struct vnodeopv_desc *vfs_opv_descs[] = {
        &fifo_nfsv4nodeop_opv_desc,
 #endif
 #endif
        &fifo_nfsv4nodeop_opv_desc,
 #endif
 #endif

-#if NULLFS
-       &null_vnodeop_opv_desc,
-#endif
-#if HFS
-       &hfs_vnodeop_opv_desc,
-       &hfs_std_vnodeop_opv_desc,
-       &hfs_specop_opv_desc,
-#if FIFO
-       &hfs_fifoop_opv_desc,
-#endif
-#endif
-#if UNION
-       &union_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,


@@ -258,5 +224,11 @@ struct vnodeopv_desc *vfs_opv_descs[] = {
        &devfs_fdesc_vnodeop_opv_desc,
 #endif /* FDESC */
 #endif /* DEVFS */
        &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
 };