On 7/19/2024 10:08 AM, Paul Moore wrote:
On Jul 11, 2024 Xu Kuohai <xukuohai@xxxxxxxxxxxxxxx> wrote:
To be consistent with most LSM hooks, convert the return value of
hook getselfattr to 0 or a negative error code.
Before:
- Hook getselfattr returns number of attributes found on success
or a negative error code on failure.
After:
- Hook getselfattr returns 0 on success or a negative error code
on failure. An output parameter @nattr is introduced to hold
the number of attributes found on success.
Signed-off-by: Xu Kuohai <xukuohai@xxxxxxxxxx>
---
include/linux/lsm_hook_defs.h | 2 +-
include/linux/security.h | 5 +++--
security/apparmor/lsm.c | 5 +++--
security/lsm_syscalls.c | 6 +++++-
security/security.c | 18 +++++++++++-------
security/selinux/hooks.c | 13 +++++++++----
security/smack/smack_lsm.c | 13 +++++++++----
7 files changed, 41 insertions(+), 21 deletions(-)
The getselfattr hook is different from the majority of the other LSM
hooks as getselfattr is used as part of lsm_get_self_attr(2) syscall and
not by other subsystems within the kernel. Let's leave it as-is for now
as it is sufficiently special case that a deviation is okay.
Got it, thanks
--
paul-moore.com
