@@ -220,6 +220,8 @@ static inline u64 audit_get_contid(struct task_struct *tsk)
extern void audit_netns_contid_del(struct net *net, u64 contid);
extern void audit_switch_task_namespaces(struct nsproxy *ns,
struct task_struct *p);
+extern void audit_log_netns_contid_list(struct net *net,
+ struct audit_context *context);
extern u32 audit_enabled;
#else /* CONFIG_AUDIT */
@@ -296,6 +298,9 @@ static inline void audit_netns_contid_del(struct net *net, u64 contid)
static inline void audit_switch_task_namespaces(struct nsproxy *ns,
struct task_struct *p)
{ }
+static inline void audit_log_netns_contid_list(struct net *net,
+ struct audit_context *context)
+{ }
#define audit_enabled AUDIT_OFF
#endif /* CONFIG_AUDIT */
@@ -453,6 +453,45 @@ void audit_switch_task_namespaces(struct nsproxy *ns, struct task_struct *p)
audit_netns_contid_add(new->net_ns, contid);
}
+/**
+ * audit_log_netns_contid_list - List contids for the given network namespace
+ * @net: the network namespace of interest
+ * @context: the audit context to use
+ *
+ * Description:
+ * Issues a CONTAINER_ID record with a CSV list of contids associated
+ * with a network namespace to accompany a NETFILTER_PKT record.
+ */
+void audit_log_netns_contid_list(struct net *net, struct audit_context *context)
+{
+ struct audit_buffer *ab = NULL;
+ struct audit_contid *cont;
+ struct audit_net *aunet;
+
+ /* Generate AUDIT_CONTAINER_ID record with container ID CSV list */
+ rcu_read_lock();
+ aunet = net_generic(net, audit_net_id);
+ if (!aunet)
+ goto out;
+ list_for_each_entry_rcu(cont, &aunet->contid_list, list) {
+ if (!ab) {
+ ab = audit_log_start(context, GFP_ATOMIC,
+ AUDIT_CONTAINER_ID);
+ if (!ab) {
+ audit_log_lost("out of memory in audit_log_netns_contid_list");
+ goto out;
+ }
+ audit_log_format(ab, "contid=");
+ } else
+ audit_log_format(ab, ",");
+ audit_log_format(ab, "%llu", (unsigned long long)cont->id);
+ }
+ audit_log_end(ab);
+out:
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL(audit_log_netns_contid_list);
+
void audit_panic(const char *message)
{
switch (audit_failure) {
@@ -69,13 +69,16 @@ static void nft_log_eval_audit(const struct nft_pktinfo *pkt)
struct sk_buff *skb = pkt->skb;
struct audit_buffer *ab;
int fam = -1;
+ struct audit_context *context;
+ struct net *net;
if (!audit_enabled)
return;
- ab = audit_log_start(NULL, GFP_ATOMIC, AUDIT_NETFILTER_PKT);
+ context = audit_alloc_local(GFP_ATOMIC);
+ ab = audit_log_start(context, GFP_ATOMIC, AUDIT_NETFILTER_PKT);
if (!ab)
- return;
+ goto errout;
audit_log_format(ab, "mark=%#x", skb->mark);
@@ -102,6 +105,10 @@ static void nft_log_eval_audit(const struct nft_pktinfo *pkt)
audit_log_format(ab, " saddr=? daddr=? proto=-1");
audit_log_end(ab);
+ net = xt_net(&pkt->xt);
+ audit_log_netns_contid_list(net, context);
+errout:
+ audit_free_context(context);
}
static void nft_log_eval(const struct nft_expr *expr,
@@ -71,10 +71,13 @@ static bool audit_ip6(struct audit_buffer *ab, struct sk_buff *skb)
{
struct audit_buffer *ab;
int fam = -1;
+ struct audit_context *context;
+ struct net *net;
if (audit_enabled == AUDIT_OFF)
- goto errout;
- ab = audit_log_start(NULL, GFP_ATOMIC, AUDIT_NETFILTER_PKT);
+ goto out;
+ context = audit_alloc_local(GFP_ATOMIC);
+ ab = audit_log_start(context, GFP_ATOMIC, AUDIT_NETFILTER_PKT);
if (ab == NULL)
goto errout;
@@ -104,7 +107,11 @@ static bool audit_ip6(struct audit_buffer *ab, struct sk_buff *skb)
audit_log_end(ab);
+ net = xt_net(par);
+ audit_log_netns_contid_list(net, context);
errout:
+ audit_free_context(context);
+out:
return XT_CONTINUE;
}