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Re: audit.63 kernel.



On Mon, 2005-06-20 at 10:52 +0100, David Woodhouse wrote:
> 
> * Sun Jun 19 2005 David Woodhouse <dwmw2 redhat com> audit.61

> - Capture path_lookup() flags in audit_inode()

We capture the flags which may include LOOKUP_PARENT and hence indicate
the the inode being reported is actually the _parent_ of the requested
path.

--- linux-2.6.9/./fs/namei.c~	2005-06-17 15:19:09.000000000 +0100
+++ linux-2.6.9/./fs/namei.c	2005-06-19 20:09:34.000000000 +0100
@@ -968,7 +968,7 @@ int fastcall path_lookup(const char *nam
 out:
 	if (unlikely(current->audit_context
 		     && nd && nd->dentry && nd->dentry->d_inode))
-		audit_inode(name, nd->dentry->d_inode);
+		audit_inode(name, nd->dentry->d_inode, flags);
 	return retval;
 }
 
--- linux-2.6.9/./include/linux/audit.h~	2005-06-19 18:53:58.000000000 +0100
+++ linux-2.6.9/./include/linux/audit.h	2005-06-19 20:10:41.000000000 +0100
@@ -271,7 +271,7 @@ extern void audit_syscall_entry(struct t
 extern void audit_syscall_exit(struct task_struct *task, int failed, long return_code);
 extern void audit_getname(const char *name);
 extern void audit_putname(const char *name);
-extern void audit_inode(const char *name, const struct inode *inode);
+extern void audit_inode(const char *name, const struct inode *inode, unsigned flags);
 
 				/* Private API (for audit.c only) */
 extern int  audit_receive_filter(int type, int pid, int uid, int seq,
@@ -294,7 +294,7 @@ extern int audit_filter_user(struct task
 #define audit_syscall_exit(t,f,r) do { ; } while (0)
 #define audit_getname(n) do { ; } while (0)
 #define audit_putname(n) do { ; } while (0)
-#define audit_inode(n,i) do { ; } while (0)
+#define audit_inode(n,i,f) do { ; } while (0)
 #define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
 #define audit_receive_filter(t,p,u,s,d,l) ({ -EOPNOTSUPP; })
 #define audit_get_loginuid(c) ({ -1; })
--- linux-2.6.9/./kernel/auditsc.c~	2005-06-19 18:53:58.000000000 +0100
+++ linux-2.6.9/./kernel/auditsc.c	2005-06-19 20:28:08.000000000 +0100
@@ -95,6 +95,7 @@ struct audit_names {
 	uid_t		uid;
 	gid_t		gid;
 	dev_t		rdev;
+	unsigned	flags;
 };
 
 struct audit_aux_data {
@@ -833,6 +834,8 @@ static void audit_log_exit(struct audit_
 			audit_log_format(ab, "name=");
 			audit_log_untrustedstring(ab, context->names[i].name);
 		}
+		audit_log_format(ab, " flags=%x\n", context->names[i].flags);
+			 
 		if (context->names[i].ino != (unsigned long)-1)
 			audit_log_format(ab, " inode=%lu dev=%02x:%02x mode=%#o"
 					     " ouid=%u ogid=%u rdev=%02x:%02x",
@@ -1058,7 +1061,7 @@ EXPORT_SYMBOL(audit_putname);
 
 /* Store the inode and device from a lookup.  Called from
  * fs/namei.c:path_lookup(). */
-void audit_inode(const char *name, const struct inode *inode)
+void audit_inode(const char *name, const struct inode *inode, unsigned flags)
 {
 	int idx;
 	struct audit_context *context = current->audit_context;
@@ -1084,12 +1087,13 @@ void audit_inode(const char *name, const
 		++context->ino_count;
 #endif
 	}
-	context->names[idx].ino  = inode->i_ino;
-	context->names[idx].dev	 = inode->i_sb->s_dev;
-	context->names[idx].mode = inode->i_mode;
-	context->names[idx].uid  = inode->i_uid;
-	context->names[idx].gid  = inode->i_gid;
-	context->names[idx].rdev = inode->i_rdev;
+	context->names[idx].flags = flags;
+	context->names[idx].ino   = inode->i_ino;
+	context->names[idx].dev	  = inode->i_sb->s_dev;
+	context->names[idx].mode  = inode->i_mode;
+	context->names[idx].uid   = inode->i_uid;
+	context->names[idx].gid   = inode->i_gid;
+	context->names[idx].rdev  = inode->i_rdev;
 }
 
 void auditsc_get_stamp(struct audit_context *ctx,

> 

-- 
dwmw2


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