xnu-4903.241.1.tar.gz

[apple/xnu.git] / libsyscall / wrappers / fs_snapshot.c

diff --git a/libsyscall/wrappers/fs_snapshot.c b/libsyscall/wrappers/fs_snapshot.c
index 10aed0453ea55651a9ddafc344551eb756badf9c..944aaf5136cbf1a6bf332c818bb863752336be7c 100644 (file)
--- a/libsyscall/wrappers/fs_snapshot.c
+++ b/libsyscall/wrappers/fs_snapshot.c
@@ -68,54 +68,16 @@ fs_snapshot_revert(int dirfd, const char *name, uint32_t flags)
     return __fs_snapshot(SNAPSHOT_OP_REVERT, dirfd, name, NULL, NULL, flags);
 }
 
-/*
- * XXX Temporary hack to do what mount_apfs(8) does. This will be removed and
- * replaced with a VFS_IOCTL based implementation in the kernel.
- */
-#include <sys/stat.h>
-#include "strings.h"
-
-#ifndef SNAPSHOT_OP_MOUNT
-#define SNAPSHOT_OP_MOUNT 0x4
-#endif
-
-#define        FS_MOUNT_SNAPSHOT 2
-#define MAX_SNAPSHOT_NAMELEN   256
-
-struct fs_mount_options {
-       uint32_t fs_flags;
-       uint8_t _padding_[2];
-};
-
-struct fs_mount_args {
-       char *specdev;
-       struct fs_mount_options options;
-       uint16_t mode;
-       uint16_t _padding_[3];
-       union {
-               struct {                        // FS_MOUNT_SNAPSHOT
-                       dev_t snap_fsys;
-                       char snap_name[MAX_SNAPSHOT_NAMELEN];
-               };
-               struct {                        // APFS_MOUNT_FOR_CONVERSION
-               };
-       };
-};
+int
+fs_snapshot_root(int dirfd, const char *name, uint32_t flags)
+{
+    return __fs_snapshot(SNAPSHOT_OP_ROOT, dirfd, name, NULL, NULL, flags);
+}
 
 int
 fs_snapshot_mount(int dirfd, const char *dir, const char *snapshot,
     uint32_t flags)
 {
-       struct stat st;
-       struct fs_mount_args mnt_args;
-
-       mnt_args.specdev = NULL;
-       mnt_args.mode = FS_MOUNT_SNAPSHOT;
-       if (fstat(dirfd, &st) == -1)
-               return (-1);
-
-       mnt_args.snap_fsys = st.st_dev;
-       strlcpy(mnt_args.snap_name, snapshot, sizeof(mnt_args.snap_name));
        return (__fs_snapshot(SNAPSHOT_OP_MOUNT, dirfd, snapshot, dir,
-           (void *)&mnt_args, flags));
+           NULL, flags));
 }