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From:   Richard Guy Briggs <rgb@redhat.com>
To:     Linux Containers List <containers@lists.linux-foundation.org>,
        Linux API <linux-api@vger.kernel.org>,
        Linux-Audit Mailing List <linux-audit@redhat.com>,
        Linux FSdevel <linux-fsdevel@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linux NetDev Upstream Mailing List <netdev@vger.kernel.org>,
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Cc:     Neil Horman <nhorman@tuxdriver.com>,
        David Howells <dhowells@redhat.com>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Simo Sorce <simo@redhat.com>,
        Eric Paris <eparis@parisplace.org>, mpatel@redhat.com,
        Serge Hallyn <serge@hallyn.com>,
        Kees Cook <keescook@chromium.org>,
        Jens Axboe <axboe@kernel.dk>,
        Christian Brauner <christian.brauner@ubuntu.com>,
        Richard Guy Briggs <rgb@redhat.com>
Subject: [PATCH ghak90 v11 06/11] audit: add containerid support for user records
Date:   Tue, 12 Jan 2021 10:09:34 -0500
Message-Id: <4a50ebc6f10c2365a04f271160d62b869a02a816.1610399347.git.rgb@redhat.com>
In-Reply-To: <cover.1610399347.git.rgb@redhat.com>
References: <cover.1610399347.git.rgb@redhat.com>
Precedence: bulk

Add audit container identifier auxiliary record to user event standalone
records.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Reviewed-by: Ondrej Mosnacek <omosnace@redhat.com>
---
 kernel/audit.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 314af418bf67..946fe5862dc7 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1339,12 +1339,6 @@ static void audit_log_common_recv_msg(struct audit_context *context,
 	audit_log_task_context(*ab);
 }
 
-static inline void audit_log_user_recv_msg(struct audit_buffer **ab,
-					   u16 msg_type)
-{
-	audit_log_common_recv_msg(NULL, ab, msg_type);
-}
-
 int is_audit_feature_set(int i)
 {
 	return af.features & AUDIT_FEATURE_TO_MASK(i);
@@ -1620,6 +1614,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		err = audit_filter(msg_type, AUDIT_FILTER_USER);
 		if (err == 1) { /* match or error */
 			char *str = data;
+			struct audit_context *context;
 
 			err = 0;
 			if (msg_type == AUDIT_USER_TTY) {
@@ -1627,7 +1622,8 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 				if (err)
 					break;
 			}
-			audit_log_user_recv_msg(&ab, msg_type);
+			context = audit_alloc_local(GFP_KERNEL);
+			audit_log_common_recv_msg(context, &ab, msg_type);
 			if (msg_type != AUDIT_USER_TTY) {
 				/* ensure NULL termination */
 				str[data_len - 1] = '\0';
@@ -1641,6 +1637,8 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 				audit_log_n_untrustedstring(ab, str, data_len);
 			}
 			audit_log_end(ab);
+			audit_log_container_id_ctx(context);
+			audit_free_context(context);
 		}
 		break;
 	case AUDIT_ADD_RULE:
-- 
2.18.4