[PATCH v3 17/23] landlock: Log TCP bind and connect denials

[Paul Moore]

On Nov 22, 2024 =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= <mic at digikod.net> wrote:
> 
> Add audit support to socket_bind and socket_connect hooks.
> 
> Audit event sample:
> 
>   type=LL_DENY [...]: domain=195ba459b blockers=net_connect_tcp daddr=127.0.0.1 dest=80

The destination address and port is already captured in the SOCKADDR
record for bind() and connect(), please don't duplicate it here.

> Cc: Günther Noack <gnoack at google.com>
> Cc: Konstantin Meskhidze <konstantin.meskhidze at huawei.com>
> Cc: Mikhail Ivanov <ivanov.mikhail1 at huawei-partners.com>
> Signed-off-by: Mickaël Salaün <mic at digikod.net>
> Link: https://lore.kernel.org/r/20241122143353.59367-18-mic@digikod.net
> ---
> Changes since v2:
> - Remove potentially superfluous IPv6 saddr log, spotted by Francis
>   Laniel.
> - Cosmetic improvements.
> ---
>  security/landlock/audit.c | 12 +++++++++
>  security/landlock/audit.h |  1 +
>  security/landlock/net.c   | 51 ++++++++++++++++++++++++++++++++++++---
>  3 files changed, 60 insertions(+), 4 deletions(-)

--
paul-moore.com