Re: [RFC PATCH ghak90 (was ghak32) V3 05/10] audit: add containerid support for tty_audit
From: Paul Moore <paul@paul-moore.com>
Date: 2018-07-20 23:04:37
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On Wed, Jun 6, 2018 at 1:04 PM Richard Guy Briggs [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Add audit container identifier auxiliary record to tty logging rule event standalone records. Signed-off-by: Richard Guy Briggs <redacted> --- drivers/tty/tty_audit.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c index e30aa6b..66bd850 100644 --- a/drivers/tty/tty_audit.c +++ b/drivers/tty/tty_audit.c@@ -66,8 +66,9 @@ static void tty_audit_log(const char *description, dev_t dev, uid_t uid = from_kuid(&init_user_ns, task_uid(tsk)); uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(tsk)); unsigned int sessionid = audit_get_sessionid(tsk); + struct audit_context *context = audit_alloc_local();
We should be using current's audit_context in tty_audit_log(). Actually, we should probably just get rid of the tsk variable in tty_audit_log() and use current directly to make things a bit more obvious. <time passes> I did some digging and I have a two year old, half-baked patch that cleans up this tsk/current usage as well as a few others. I just rebased it against audit/next and surprisingly it seems to pass a basic smoke test (kernel boots and audit-testsuite passes); I'll post it to the list as a RFC once I'm done reviewing these patches.
quoted hunk ↗ jump to hunk
- ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_TTY); + ab = audit_log_start(context, GFP_KERNEL, AUDIT_TTY); if (ab) { char name[sizeof(tsk->comm)];@@ -80,6 +81,8 @@ static void tty_audit_log(const char *description, dev_t dev, audit_log_n_hex(ab, data, size); audit_log_end(ab); } + audit_log_contid(context, "tty", audit_get_contid(tsk)); + audit_free_context(context); }