[PATCH ghau51/ghau40 v3 1/6] AUDIT_CONTAINER_ID message type basic support

[Richard Guy Briggs <rgb@redhat.com>]

This defines the message number for the audit container identifier
registration record should the kernel headers not be up to date, gives
the record number a name for printing and allows the record to be
interpreted since it is in the 1000 range like AUDIT_LOGIN.

See: https://github.com/linux-audit/audit-userspace/issues/51
See: https://github.com/linux-audit/audit-kernel/issues/90
See: https://github.com/linux-audit/audit-testsuite/issues/64
See: https://github.com/linux-audit/audit-kernel/wiki/RFE-Audit-Container-ID
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
---
 lib/libaudit.h    | 4 ++++
 lib/msg_typetab.h | 1 +
 lib/netlink.c     | 1 +
 3 files changed, 6 insertions(+)

diff --git a/lib/libaudit.h b/lib/libaudit.h
index b681e8d..6cdd269 100644
--- a/lib/libaudit.h
+++ b/lib/libaudit.h
@@ -242,6 +242,10 @@ extern "C" {
 #define AUDIT_GET_FEATURE       1019    /* Get which features are enabled */
 #endif
 
+#ifndef AUDIT_CONTAINER_ID
+#define AUDIT_CONTAINER_ID	1020    /* Container creation notice */
+#endif
+
 #ifndef AUDIT_MMAP
 #define AUDIT_MMAP		1323 /* Descriptor and flags in mmap */
 #endif
diff --git a/lib/msg_typetab.h b/lib/msg_typetab.h
index 966865f..e94bfb2 100644
--- a/lib/msg_typetab.h
+++ b/lib/msg_typetab.h
@@ -44,6 +44,7 @@ _S(AUDIT_LOGIN,                      "LOGIN"                         )
 //_S(AUDIT_TTY_SET,                    "TTY_SET"                       )
 //_S(AUDIT_SET_FEATURE,                "SET_FEATURE"                   )
 //_S(AUDIT_GET_FEATURE,                "GET_FEATURE"                   )
+_S(AUDIT_CONTAINER_ID,               "CONTAINER_ID"                  )
 _S(AUDIT_USER_AUTH,                  "USER_AUTH"                     )
 _S(AUDIT_USER_ACCT,                  "USER_ACCT"                     )
 _S(AUDIT_USER_MGMT,                  "USER_MGMT"                     )
diff --git a/lib/netlink.c b/lib/netlink.c
index 5b2028f..ef35bdd 100644
--- a/lib/netlink.c
+++ b/lib/netlink.c
@@ -184,6 +184,7 @@ static int adjust_reply(struct audit_reply *rep, int len)
 			break;
 		case AUDIT_USER:
 		case AUDIT_LOGIN:
+		case AUDIT_CONTAINER_ID:
 		case AUDIT_KERNEL:
 		case AUDIT_FIRST_USER_MSG...AUDIT_LAST_USER_MSG:
 		case AUDIT_FIRST_USER_MSG2...AUDIT_LAST_USER_MSG2:
-- 
1.8.3.1