[PATCH] Define new range of userspace messages.

The attached patch updates various items for the new user space
messages. Please apply.

Signed-off-by: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

3 files changed, 21 insertions, 6 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 2408cb77899c..fd65078e794a 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -33,11 +33,20 @@
  * 1200 - 1299 messages internal to the audit daemon
  * 1300 - 1399 audit event messages
  * 1400 - 1499 SE Linux use
- * 1500 - 1999 future use
- * 2000 is for otherwise unclassified kernel audit messages
+ * 1500 - 1599 kernel LSPP events
+ * 1600 - 1699 kernel crypto events
+ * 1700 - 1999 future kernel use (maybe integrity labels and related events)
+ * 2000 is for otherwise unclassified kernel audit messages (legacy)
+ * 2001 - 2099 unused (kernel)
+ * 2100 - 2199 user space anomaly records
+ * 2200 - 2299 user space actions taken in response to anomalies
+ * 2300 - 2399 user space generated LSPP events
+ * 2400 - 2499 user space crypto events
+ * 2500 - 2999 future user space (maybe integrity labels and related events)
  *
- * Messages from 1000-1199 are bi-directional. 1200-1299 are exclusively user
- * space. Anything over that is kernel --> user space communication.
+ * Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
+ * exclusively user space. 1300-2099 is kernel --> user space 
+ * communication.
  */
 #define AUDIT_GET               1000    /* Get status */
 #define AUDIT_SET               1001    /* Set status (enable/disable/auditd) */
@@ -54,6 +63,8 @@
 #define AUDIT_FIRST_USER_MSG    1100    /* Userspace messages mostly uninteresting to kernel */
 #define AUDIT_USER_AVC          1107    /* We filter this differently */
 #define AUDIT_LAST_USER_MSG     1199
+#define AUDIT_FIRST_USER_MSG2   2100    /* More user space messages */
+#define AUDIT_LAST_USER_MSG2    2999
  
 #define AUDIT_DAEMON_START      1200    /* Daemon startup record */
 #define AUDIT_DAEMON_END        1201    /* Daemon normal stop record */
diff --git a/kernel/audit.c b/kernel/audit.c
index 973ca5a9e0d6..6d61dd79a605 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -369,6 +369,7 @@ static int audit_netlink_ok(kernel_cap_t eff_cap, u16 msg_type)
                 break;
         case AUDIT_USER:
         case AUDIT_FIRST_USER_MSG...AUDIT_LAST_USER_MSG:
+        case AUDIT_FIRST_USER_MSG2...AUDIT_LAST_USER_MSG2:
                 if (!cap_raised(eff_cap, CAP_AUDIT_WRITE))
                         err = -EPERM;
                 break;
@@ -449,6 +450,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                 break;
         case AUDIT_USER:
         case AUDIT_FIRST_USER_MSG...AUDIT_LAST_USER_MSG:
+        case AUDIT_FIRST_USER_MSG2...AUDIT_LAST_USER_MSG2:
                 if (!audit_enabled && msg_type != AUDIT_USER_AVC)
                         return 0;
 
diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
index 69b9329b2054..d7c0e912c5f3 100644
--- a/security/selinux/nlmsgtab.c
+++ b/security/selinux/nlmsgtab.c
@@ -145,8 +145,10 @@ int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm)
                 break;
 
         case SECCLASS_NETLINK_AUDIT_SOCKET:
-                if (nlmsg_type >= AUDIT_FIRST_USER_MSG &&
-                    nlmsg_type <= AUDIT_LAST_USER_MSG) {
+                if ((nlmsg_type >= AUDIT_FIRST_USER_MSG &&
+                     nlmsg_type <= AUDIT_LAST_USER_MSG) ||
+                    (nlmsg_type >= AUDIT_FIRST_USER_MSG2 &&
+                     nlmsg_type <= AUDIT_LAST_USER_MSG2)) {
                         *perm = NETLINK_AUDIT_SOCKET__NLMSG_RELAY;
                 } else {
                         err = nlmsg_perm(nlmsg_type, perm, nlmsg_audit_perms,