Audit: add TTY input auditing

[linux-2.6-block.git] / drivers / char / tty_io.c

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index fde69e589ca74e25bf891365a683edcc6dd98f3d..de37ebc3a4cf03fa9e94d68fbf7e0f70b9293337 100644 (file)
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1503,6 +1503,15 @@ int tty_hung_up_p(struct file * filp)
 
 EXPORT_SYMBOL(tty_hung_up_p);
 
+/**
+ * is_tty      -       checker whether file is a TTY
+ */
+int is_tty(struct file *filp)
+{
+       return filp->f_op->read == tty_read
+               || filp->f_op->read == hung_up_tty_read;
+}
+
 static void session_clear_tty(struct pid *session)
 {
        struct task_struct *p;
@@ -2673,6 +2682,7 @@ got_driver:
                __proc_set_tty(current, tty);
        spin_unlock_irq(&current->sighand->siglock);
        mutex_unlock(&tty_mutex);
+       tty_audit_opening();
        return 0;
 }
 
@@ -2735,8 +2745,10 @@ static int ptmx_open(struct inode * inode, struct file * filp)
 
        check_tty_count(tty, "tty_open");
        retval = ptm_driver->open(tty, filp);
-       if (!retval)
+       if (!retval) {
+               tty_audit_opening();
                return 0;
+       }
 out1:
        release_dev(filp);
        return retval;