diff options
| author |   mikeb <mikeb@openbsd.org> | 2011-10-06 09:14:35 +0000 |
|---|---|---|
| committer | mikeb <mikeb@openbsd.org> | 2011-10-06 09:14:35 +0000 |
| commit | 556fc1856a4642dbd1e91964d4e9bc576544cb80 (patch) | |
| tree | 4307cc07cc484974d235207077085e115668ebe6 /sys/sys/conf.h | |
| parent | rc_reload is valid here. (diff) | |
| download | wireguard-openbsd-556fc1856a4642dbd1e91964d4e9bc576544cb80.tar.xz wireguard-openbsd-556fc1856a4642dbd1e91964d4e9bc576544cb80.zip | |
Introduce a kqfilter wrapper for the controlling tty device entry
which allows a correct registration of kqueue(2) notifications on
the /dev/tty instead of calling a function via a null pointer in
the ttkqfilter leading to a local DoS.
Surprisingly the same code is present in NetBSD since the kqueue
merge, but didn't make it to the OpenBSD for 10 years.
Thanks to Anton Yabchinskiy <arn-at-bestmx-dot-ru> for a GHCi crash
report and his willingness to test multiple diffs for over a week.
With input from nicm, ok miod, derraadt.
Diffstat (limited to 'sys/sys/conf.h')
| -rw-r--r-- | sys/sys/conf.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/sys/conf.h b/sys/sys/conf.h index a6b5cc2f258..f68f068e843 100644 --- a/sys/sys/conf.h +++ b/sys/sys/conf.h @@ -1,4 +1,4 @@ -/* $OpenBSD: conf.h,v 1.116 2011/09/17 08:36:06 miod Exp $ */ +/* $OpenBSD: conf.h,v 1.117 2011/10/06 09:14:35 mikeb Exp $ */ /* $NetBSD: conf.h,v 1.33 1996/05/03 20:03:32 christos Exp $ */ /*- @@ -238,7 +238,7 @@ extern struct cdevsw cdevsw[]; dev_init(c,n,open), (dev_type_close((*))) nullop, dev_init(c,n,read), \ dev_init(c,n,write), dev_init(c,n,ioctl), (dev_type_stop((*))) nullop, \ 0, dev_init(c,n,poll), (dev_type_mmap((*))) enodev, \ - D_TTY, 0, ttkqfilter } + D_TTY, 0, dev_init(c,n,kqfilter) } /* open, close, read, write, ioctl, mmap */ #define cdev_mm_init(c,n) { \ |