On 4/28/2025 9:23 AM, Stephen Smalley wrote: > On Mon, Apr 28, 2025 at 12:17 PM Casey Schaufler <casey@xxxxxxxxxxxxxxxx> wrote: >> On 4/28/2025 8:55 AM, Stephen Smalley wrote: >>> Update the security_inode_listsecurity() interface to allow >>> use of the xattr_list_one() helper and update the hook >>> implementations. >>> >>> Link: https://lore.kernel.org/selinux/20250424152822.2719-1-stephen.smalley.work@xxxxxxxxx/ >>> >>> Signed-off-by: Stephen Smalley <stephen.smalley.work@xxxxxxxxx> >>> --- >>> This patch is relative to the one linked above, which in theory is on >>> vfs.fixes but doesn't appear to have been pushed when I looked. >>> diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h >>> index bf3bbac4e02a..3c3919dcdebc 100644 >>> --- a/include/linux/lsm_hook_defs.h >>> +++ b/include/linux/lsm_hook_defs.h >>> @@ -174,8 +174,8 @@ LSM_HOOK(int, -EOPNOTSUPP, inode_getsecurity, struct mnt_idmap *idmap, >>> struct inode *inode, const char *name, void **buffer, bool alloc) >>> LSM_HOOK(int, -EOPNOTSUPP, inode_setsecurity, struct inode *inode, >>> const char *name, const void *value, size_t size, int flags) >>> -LSM_HOOK(int, 0, inode_listsecurity, struct inode *inode, char *buffer, >>> - size_t buffer_size) >>> +LSM_HOOK(int, 0, inode_listsecurity, struct inode *inode, char **buffer, >>> + ssize_t *remaining_size) >> How about "rem", "rsize" or some other name instead of the overly long >> "remaining_size_"? > I don't especially care either way but was just being consistent with > the xattr_list_one() code. Sigh. Then I'd leave it as is.