[PATCH] Add tty to syscall audit records

Hi,

>From the RBAC specs:

FAU_SAR.1.1 The TSF shall provide the set of authorized
RBAC administrators with the capability to read the following
audit information from the audit records:

<snip>
(e) The User Session Identifier or Terminal Type

A patch adding the tty for all syscalls is included in this email.
Please apply.

Signed-off-by: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 8 insertions, 2 deletions

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index ba0878854777..d3d499272d13 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -57,6 +57,7 @@
 #include <asm/unistd.h>
 #include <linux/security.h>
 #include <linux/list.h>
+#include <linux/tty.h>
 
 #include "audit.h"
 
@@ -573,6 +574,7 @@ static void audit_log_exit(struct audit_context *context, gfp_t gfp_mask)
         int i;
         struct audit_buffer *ab;
         struct audit_aux_data *aux;
+        const char *tty;
 
         ab = audit_log_start(context, gfp_mask, AUDIT_SYSCALL);
         if (!ab)
@@ -585,11 +587,15 @@ static void audit_log_exit(struct audit_context *context, gfp_t gfp_mask)
                 audit_log_format(ab, " success=%s exit=%ld", 
                                  (context->return_valid==AUDITSC_SUCCESS)?"yes":"no",
                                  context->return_code);
+        if (current->signal->tty && current->signal->tty->name)
+                tty = current->signal->tty->name;
+        else
+                tty = "(none)";
         audit_log_format(ab,
                   " a0=%lx a1=%lx a2=%lx a3=%lx items=%d"
                   " pid=%d auid=%u uid=%u gid=%u"
                   " euid=%u suid=%u fsuid=%u"
-                  " egid=%u sgid=%u fsgid=%u",
+                  " egid=%u sgid=%u fsgid=%u tty=%s",
                   context->argv[0],
                   context->argv[1],
                   context->argv[2],
@@ -600,7 +606,7 @@ static void audit_log_exit(struct audit_context *context, gfp_t gfp_mask)
                   context->uid,
                   context->gid,
                   context->euid, context->suid, context->fsuid,
-                  context->egid, context->sgid, context->fsgid);
+                  context->egid, context->sgid, context->fsgid, tty);
         audit_log_task_info(ab, gfp_mask);
         audit_log_end(ab);