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authorAmy Griffis <amy.griffis@hp.com>2007-02-13 14:15:01 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2007-05-11 05:38:26 -0400
commit4fc03b9beb2314f3adb9e72b7935a80c577954d1 (patch)
tree81e04534c582923fcdc8212497d1487ddae412a8
parent510f4006e7a82b37b53c17bbe64ec20f3a59302b (diff)
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[PATCH] complete message queue auditing
Handle the edge cases for POSIX message queue auditing. Collect inode info when opening an existing mq, and for send/receive operations. Remove audit_inode_update() as it has really evolved into the equivalent of audit_inode(). Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/namei.c2
-rw-r--r--include/linux/audit.h7
-rw-r--r--ipc/mqueue.c4
-rw-r--r--kernel/auditsc.c27
4 files changed, 5 insertions, 35 deletions
diff --git a/fs/namei.c b/fs/namei.c
index b3780e3fc88e..5e2d98d10c5d 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1719,7 +1719,7 @@ do_last:
* It already exists.
*/
mutex_unlock(&dir->d_inode->i_mutex);
- audit_inode_update(path.dentry->d_inode);
+ audit_inode(pathname, path.dentry->d_inode);
error = -EEXIST;
if (flag & O_EXCL)
diff --git a/include/linux/audit.h b/include/linux/audit.h
index fde0f1420cd2..22976ddbd264 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -355,7 +355,6 @@ extern void audit_putname(const char *name);
extern void __audit_inode(const char *name, const struct inode *inode);
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)
@@ -378,10 +377,6 @@ static inline void audit_inode_child(const char *dname,
if (unlikely(!audit_dummy_context()))
__audit_inode_child(dname, inode, parent);
}
-static inline void audit_inode_update(const struct inode *inode) {
- if (unlikely(!audit_dummy_context()))
- __audit_inode_update(inode);
-}
static inline void audit_ptrace(struct task_struct *t)
{
@@ -470,10 +465,8 @@ extern int audit_signals;
#define audit_putname(n) do { ; } while (0)
#define __audit_inode(n,i) do { ; } while (0)
#define __audit_inode_child(d,i,p) do { ; } while (0)
-#define __audit_inode_update(i) do { ; } while (0)
#define audit_inode(n,i) do { ; } while (0)
#define audit_inode_child(d,i,p) do { ; } while (0)
-#define audit_inode_update(i) do { ; } while (0)
#define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
#define audit_get_loginuid(c) ({ -1; })
#define audit_log_task_context(b) do { ; } while (0)
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index d17821d3f483..fab5707cb5f7 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -681,6 +681,7 @@ asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
if (oflag & O_CREAT) {
if (dentry->d_inode) { /* entry already exists */
+ audit_inode(name, dentry->d_inode);
error = -EEXIST;
if (oflag & O_EXCL)
goto out;
@@ -693,6 +694,7 @@ asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
error = -ENOENT;
if (!dentry->d_inode)
goto out;
+ audit_inode(name, dentry->d_inode);
filp = do_open(dentry, oflag);
}
@@ -840,6 +842,7 @@ asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr,
if (unlikely(filp->f_op != &mqueue_file_operations))
goto out_fput;
info = MQUEUE_I(inode);
+ audit_inode(NULL, inode);
if (unlikely(!(filp->f_mode & FMODE_WRITE)))
goto out_fput;
@@ -923,6 +926,7 @@ asmlinkage ssize_t sys_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr,
if (unlikely(filp->f_op != &mqueue_file_operations))
goto out_fput;
info = MQUEUE_I(inode);
+ audit_inode(NULL, inode);
if (unlikely(!(filp->f_mode & FMODE_READ)))
goto out_fput;
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 41d129a78793..25d890e997f2 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1476,33 +1476,6 @@ update_context:
}
/**
- * audit_inode_update - update inode info for last collected name
- * @inode: inode being audited
- *
- * When open() is called on an existing object with the O_CREAT flag, the inode
- * data audit initially collects is incorrect. This additional hook ensures
- * audit has the inode data for the actual object to be opened.
- */
-void __audit_inode_update(const struct inode *inode)
-{
- struct audit_context *context = current->audit_context;
- int idx;
-
- if (!context->in_syscall || !inode)
- return;
-
- if (context->name_count == 0) {
- context->name_count++;
-#if AUDIT_DEBUG
- context->ino_count++;
-#endif
- }
- idx = context->name_count - 1;
-
- audit_copy_inode(&context->names[idx], inode);
-}
-
-/**
* auditsc_get_stamp - get local copies of audit_context values
* @ctx: audit_context for the task
* @t: timespec to store time recorded in the audit_context