[RFC PATCH ghak32 V2 12/13] audit: NETFILTER_PKT: record each container ID associated with a netNS
STALE3042d
From: Richard Guy Briggs <hidden>
Date: 2018-03-16 09:00:39
Also in:
cgroups, linux-api, linux-fsdevel, lkml
Subsystem:
audit subsystem, netfilter, networking [general], the rest · Maintainers:
Paul Moore, Eric Paris, Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v2 of 2 in this series.
Revisions (2)
- v1 [diff vs current]
- v2 current
Add container ID auxiliary record(s) to NETFILTER_PKT event standalone records. Iterate through all potential container IDs associated with a network namespace. Signed-off-by: Richard Guy Briggs <redacted> --- kernel/audit.c | 1 + kernel/auditsc.c | 2 ++ net/netfilter/xt_AUDIT.c | 15 ++++++++++++++- 3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/kernel/audit.c b/kernel/audit.c
index 08662b4..3c77e47 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c@@ -2102,6 +2102,7 @@ int audit_log_container_info(struct audit_context *context, audit_log_end(ab); return 0; } +EXPORT_SYMBOL(audit_log_container_info); void audit_log_key(struct audit_buffer *ab, char *key) {
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 208da962..af68d01 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c@@ -975,6 +975,7 @@ struct audit_context *audit_alloc_local(void) context->in_syscall = 1; return context; } +EXPORT_SYMBOL(audit_alloc_local); inline void audit_free_context(struct audit_context *context) {
@@ -989,6 +990,7 @@ inline void audit_free_context(struct audit_context *context) audit_proctitle_free(context); kfree(context); } +EXPORT_SYMBOL(audit_free_context); static int audit_log_pid_context(struct audit_context *context, pid_t pid, kuid_t auid, kuid_t uid, unsigned int sessionid,
diff --git a/net/netfilter/xt_AUDIT.c b/net/netfilter/xt_AUDIT.c
index c502419..edaa456 100644
--- a/net/netfilter/xt_AUDIT.c
+++ b/net/netfilter/xt_AUDIT.c@@ -71,10 +71,14 @@ static bool audit_ip6(struct audit_buffer *ab, struct sk_buff *skb) { struct audit_buffer *ab; int fam = -1; + struct audit_context *context = audit_alloc_local(); + struct audit_containerid *cont; + int i = 0; + struct net *net; if (audit_enabled == 0) goto errout; - ab = audit_log_start(NULL, GFP_ATOMIC, AUDIT_NETFILTER_PKT); + ab = audit_log_start(context, GFP_ATOMIC, AUDIT_NETFILTER_PKT); if (ab == NULL) goto errout;
@@ -104,7 +108,16 @@ static bool audit_ip6(struct audit_buffer *ab, struct sk_buff *skb) audit_log_end(ab); + net = sock_net(NETLINK_CB(skb).sk); + list_for_each_entry(cont, &net->audit_containerid, list) { + char buf[14]; + + sprintf(buf, "net%u", i++); + audit_log_container_info(context, buf, cont->id); + } + errout: + audit_free_context(context); return XT_CONTINUE; }
--
1.8.3.1