diff options
| author | Andrew Morton <akpm@digeo.com> | 2003-02-14 20:23:22 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2003-02-14 20:23:22 -0800 |
| commit | c2e7eeb03b115bdb638e3f9618400013f74591d8 (patch) | |
| tree | c3440985753b440134626cadb2c43b4d4f293c0d /fs/ext2/xattr.c | |
| parent | f83b53c5b5a6f9f3685aff895bb50a86b4702287 (diff) | |
| download | history-c2e7eeb03b115bdb638e3f9618400013f74591d8.tar.gz | |
[PATCH] xattr: trusted extended attributes
Patch from Andreas Gruenbacher <agruen@suse.de>
This patch adds trusted extended attributes. Trusted extended attributes are
visible and accessible only to processes that have the CAP_SYS_ADMIN
capability. Attributes in this class are used to implement mechanisms in
user space (i.e., outside the kernel) which keep information in extended
attributes to which ordinary processes have no access. HSM is an example.
Diffstat (limited to 'fs/ext2/xattr.c')
| -rw-r--r-- | fs/ext2/xattr.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c index f11beeae819d1c..72fd8b2c4b54b1 100644 --- a/fs/ext2/xattr.c +++ b/fs/ext2/xattr.c @@ -1093,27 +1093,35 @@ init_ext2_xattr(void) { int err; - err = ext2_xattr_register(EXT2_XATTR_INDEX_USER, &ext2_xattr_user_handler); + err = ext2_xattr_register(EXT2_XATTR_INDEX_USER, + &ext2_xattr_user_handler); if (err) return err; + err = ext2_xattr_register(EXT2_XATTR_INDEX_TRUSTED, + &ext2_xattr_trusted_handler); + if (err) + goto out; #ifdef CONFIG_EXT2_FS_POSIX_ACL err = init_ext2_acl(); if (err) - goto out; + goto out1; #endif ext2_xattr_cache = mb_cache_create("ext2_xattr", NULL, sizeof(struct mb_cache_entry) + sizeof(struct mb_cache_entry_index), 1, 6); if (!ext2_xattr_cache) { err = -ENOMEM; - goto out1; + goto out2; } return 0; -out1: +out2: #ifdef CONFIG_EXT2_FS_POSIX_ACL exit_ext2_acl(); -out: +out1: #endif + ext2_xattr_unregister(EXT2_XATTR_INDEX_TRUSTED, + &ext2_xattr_trusted_handler); +out: ext2_xattr_unregister(EXT2_XATTR_INDEX_USER, &ext2_xattr_user_handler); return err; @@ -1126,5 +1134,8 @@ exit_ext2_xattr(void) #ifdef CONFIG_EXT2_FS_POSIX_ACL exit_ext2_acl(); #endif - ext2_xattr_unregister(EXT2_XATTR_INDEX_USER, &ext2_xattr_user_handler); + ext2_xattr_unregister(EXT2_XATTR_INDEX_TRUSTED, + &ext2_xattr_trusted_handler); + ext2_xattr_unregister(EXT2_XATTR_INDEX_USER, + &ext2_xattr_user_handler); } |