Mickaël Salaün 100f59d964 LSM: Remove double path_rename hook calls for RENAME_EXCHANGE ... In order to be able to identify a file exchange with renameat2(2) and RENAME_EXCHANGE, which will be useful for Landlock [1], propagate the rename flags to LSMs. This may also improve performance because of the switch from two set of LSM hook calls to only one, and because LSMs using this hook may optimize the double check (e.g. only one lock, reduce the number of path walks). AppArmor, Landlock and Tomoyo are updated to leverage this change. This should not change the current behavior (same check order), except (different level of) speed boosts. [1] https://lore.kernel.org/r/20220221212522.320243-1-mic@digikod.net Cc: James Morris <jmorris@namei.org> Cc: Kentaro Takeda <takedakn@nttdata.co.jp> Cc: Serge E. Hallyn <serge@hallyn.com> Acked-by: John Johansen <john.johansen@canonical.com> Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Mickaël Salaün <mic@digikod.net> Link: https://lore.kernel.org/r/20220506161102.525323-7-mic@digikod.net		2022-05-23 13:27:58 +02:00
..
common.h	landlock: Set up the security framework and manage credentials	2021-04-22 12:22:10 -07:00
cred.c	landlock: Format with clang-format	2022-05-09 12:31:10 +02:00
cred.h	landlock: Format with clang-format	2022-05-09 12:31:10 +02:00
fs.c	LSM: Remove double path_rename hook calls for RENAME_EXCHANGE	2022-05-23 13:27:58 +02:00
fs.h	landlock: Define access_mask_t to enforce a consistent access mask size	2022-05-23 13:27:55 +02:00
Kconfig	landlock: Support filesystem access-control	2021-04-22 12:22:11 -07:00
limits.h	landlock: Reduce the maximum number of layers to 16	2022-05-23 13:27:56 +02:00
Makefile	landlock: Add syscall implementations	2021-04-22 12:22:11 -07:00
object.c	landlock: Format with clang-format	2022-05-09 12:31:10 +02:00
object.h	landlock: Format with clang-format	2022-05-09 12:31:10 +02:00
ptrace.c	landlock: Format with clang-format	2022-05-09 12:31:10 +02:00
ptrace.h	landlock: Add ptrace restrictions	2021-04-22 12:22:10 -07:00
ruleset.c	landlock: Define access_mask_t to enforce a consistent access mask size	2022-05-23 13:27:55 +02:00
ruleset.h	landlock: Fix same-layer rule unions	2022-05-23 13:27:57 +02:00
setup.c	landlock: Support filesystem access-control	2021-04-22 12:22:11 -07:00
setup.h	landlock: Support filesystem access-control	2021-04-22 12:22:11 -07:00
syscalls.c	landlock: Change landlock_restrict_self(2) check ordering	2022-05-23 13:27:51 +02:00