diff options
| author | Miloslav Trmac <mitr@redhat.com> | 2008-04-18 13:30:14 -0700 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-04-28 06:28:24 -0400 |
| commit | 41126226e186d92a45ed664e546abb5204588359 (patch) | |
| tree | cd31de9587e81b01934fe95e574be109dd0129c7 /drivers/char/tty_io.c | |
| parent | 7719e437fac119e57b17588bab3a8e39ff9d22eb (diff) | |
[patch 1/2] audit: let userspace fully control TTY input auditing
Remove the code that automatically disables TTY input auditing in processes
that open TTYs when they have no other TTY open; this heuristic was
intended to automatically handle daemons, but it has false positives (e.g.
with sshd) that make it impossible to control TTY input auditing from a PAM
module. With this patch, TTY input auditing is controlled from user-space
only.
On the other hand, not even for daemons does it make sense to audit "input"
from PTY masters; this data was produced by a program writing to the PTY
slave, and does not represent data entered by the user.
Signed-off-by: Miloslav Trmac <mitr@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/char/tty_io.c')
| -rw-r--r-- | drivers/char/tty_io.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index 4d3c7018f0c..afddccf1bb3 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -2755,7 +2755,6 @@ got_driver: __proc_set_tty(current, tty); spin_unlock_irq(¤t->sighand->siglock); mutex_unlock(&tty_mutex); - tty_audit_opening(); return 0; } @@ -2818,10 +2817,8 @@ static int ptmx_open(struct inode *inode, struct file *filp) check_tty_count(tty, "tty_open"); retval = ptm_driver->open(tty, filp); - if (!retval) { - tty_audit_opening(); + if (!retval) return 0; - } out1: release_dev(filp); return retval; |