AUDIT: Add message types to audit records

This patch adds more messages types to the audit subsystem so that audit 
analysis is quicker, intuitive, and more useful.

Signed-off-by: Steve Grubb <sgrubb@redhat.com>
---
I forgot one type in the big patch. I need to add one for user space 
originating SE Linux avc messages. This is used by dbus and nscd.

-Steve
---
Updated to 2.6.12-rc4-mm1.
-dwmw2

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

1 files changed, 50 insertions, 16 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 405332ebf3c6..1a15ba38c660 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -27,15 +27,53 @@
 #include <linux/sched.h>
 #include <linux/elf.h>
 
-/* Request and reply types */
+/* The netlink messages for the audit system is divided into blocks:
+ * 1000 - 1099 are for commanding the audit system
+ * 1100 - 1199 user space trusted application messages
+ * 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
+ *
+ * Messages from 1000-1199 are bi-directional. 1200-1299 are exclusively user
+ * space. Anything over that is kernel --> user space communication.
+ */
 #define AUDIT_GET               1000    /* Get status */
 #define AUDIT_SET               1001    /* Set status (enable/disable/auditd) */
-#define AUDIT_LIST              1002    /* List filtering rules */
-#define AUDIT_ADD               1003    /* Add filtering rule */
-#define AUDIT_DEL               1004    /* Delete filtering rule */
-#define AUDIT_USER              1005    /* Send a message from user-space */
+#define AUDIT_LIST              1002    /* List syscall filtering rules */
+#define AUDIT_ADD               1003    /* Add syscall filtering rule */
+#define AUDIT_DEL               1004    /* Delete syscall filtering rule */
+#define AUDIT_USER              1005    /* Message from userspace -- deprecated */
 #define AUDIT_LOGIN             1006    /* Define the login id and information */
-#define AUDIT_SIGNAL_INFO       1010    /* Get information about sender of signal*/
+#define AUDIT_WATCH_INS         1007    /* Insert file/dir watch entry */
+#define AUDIT_WATCH_REM         1008    /* Remove file/dir watch entry */
+#define AUDIT_WATCH_LIST        1009    /* List all file/dir watches */
+#define AUDIT_SIGNAL_INFO       1010    /* Get info about sender of signal to auditd */
+
+#define AUDIT_USER_AUTH         1100    /* User space authentication */
+#define AUDIT_USER_ACCT         1101    /* User space acct change */
+#define AUDIT_USER_MGMT         1102    /* User space acct management */
+#define AUDIT_CRED_ACQ          1103    /* User space credential acquired */
+#define AUDIT_CRED_DISP         1104    /* User space credential disposed */
+#define AUDIT_USER_START        1105    /* User space session start */ 
+#define AUDIT_USER_END          1106    /* User space session end */
+#define AUDIT_USER_AVC          1107    /* User space avc message */
+ 
+#define AUDIT_DAEMON_START      1200    /* Daemon startup record */
+#define AUDIT_DAEMON_END        1201    /* Daemon normal stop record */
+#define AUDIT_DAEMON_ABORT      1202    /* Daemon error stop record */
+#define AUDIT_DAEMON_CONFIG     1203    /* Daemon config change */
+
+#define AUDIT_SYSCALL           1300    /* Syscall event */
+#define AUDIT_FS_WATCH          1301    /* Filesystem watch event */
+#define AUDIT_PATH              1302    /* Filname path information */
+#define AUDIT_IPC               1303    /* IPC record */
+#define AUDIT_SOCKET            1304    /* Socket record */
+#define AUDIT_CONFIG_CHANGE     1305    /* Audit system configuration change */
+
+#define AUDIT_AVC               1400    /* SE Linux avc denial or grant */
+#define AUDIT_SELINUX_ERR       1401    /* Internal SE Linux Errors */
 
 #define AUDIT_KERNEL            2000    /* Asynchronous audit record. NOT A REQUEST. */
 
@@ -216,14 +254,11 @@ extern void audit_signal_info(int sig, struct task_struct *t);
 #ifdef CONFIG_AUDIT
 /* These are defined in audit.c */
                                 /* Public API */
-#define audit_log(ctx, fmt, args...) \
-        audit_log_type(ctx, AUDIT_KERNEL, 0, fmt, ##args)
-extern void                 audit_log_type(struct audit_context *ctx, int type,
-                                      int pid, const char *fmt, ...)
-                            __attribute__((format(printf,4,5)));
+extern void                 audit_log(struct audit_context *ctx, int type,
+                                      const char *fmt, ...)
+                            __attribute__((format(printf,3,4)));
 
-extern struct audit_buffer *audit_log_start(struct audit_context *ctx, int type,
-                                            int pid);
+extern struct audit_buffer *audit_log_start(struct audit_context *ctx,int type);
 extern void                 audit_log_format(struct audit_buffer *ab,
                                              const char *fmt, ...)
                             __attribute__((format(printf,2,3)));
@@ -243,9 +278,8 @@ extern void		    audit_send_reply(int pid, int seq, int type,
                                              void *payload, int size);
 extern void                 audit_log_lost(const char *message);
 #else
-#define audit_log(c,f,...) do { ; } while (0)
-#define audit_log_type(c,t,p,f,...) do { ; } while (0)
-#define audit_log_start(c,t,p) ({ NULL; })
+#define audit_log(c,t,f,...) do { ; } while (0)
+#define audit_log_start(c,t) ({ NULL; })
 #define audit_log_vformat(b,f,a) do { ; } while (0)
 #define audit_log_format(b,f,...) do { ; } while (0)
 #define audit_log_end(b) do { ; } while (0)