[PATCH] auditing ptrace

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 773e30d..f93ce78 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -91,6 +91,7 @@
 #define AUDIT_MQ_GETSETATTR	1315	/* POSIX MQ get/set attribute record type */
 #define AUDIT_KERNEL_OTHER	1316	/* For use by 3rd party modules */
 #define AUDIT_FD_PAIR		1317    /* audit record for pipe/socketpair */
+#define AUDIT_OBJ_PID		1318	/* ptrace target */
 
 #define AUDIT_AVC		1400	/* SE Linux avc denial or grant */
 #define AUDIT_SELINUX_ERR	1401	/* Internal SE Linux Errors */
@@ -352,6 +353,8 @@
 extern void __audit_inode_child(const char *dname, const struct inode *inode,
 				const struct inode *parent);
 extern void __audit_inode_update(const struct inode *inode);
+extern void __audit_ptrace(struct task_struct *t);
+
 static inline int audit_dummy_context(void)
 {
 	void *p = current->audit_context;
@@ -377,6 +380,12 @@
 		__audit_inode_update(inode);
 }
 
+static inline void audit_ptrace(struct task_struct *t)
+{
+	if (unlikely(!audit_dummy_context()))
+		__audit_ptrace(t);
+}
+
 				/* Private API (for audit.c only) */
 extern unsigned int audit_serial(void);
 extern void auditsc_get_stamp(struct audit_context *ctx,
@@ -477,6 +486,7 @@
 #define audit_mq_timedreceive(d,l,p,t) ({ 0; })
 #define audit_mq_notify(d,n) ({ 0; })
 #define audit_mq_getsetattr(d,s) ({ 0; })
+#define audit_ptrace(t) ((void)0)
 #define audit_n_rules 0
 #endif