diff options
| author | Chris Cappuccio <chris@cvs.openbsd.org> | 2000-05-15 19:15:01 +0000 |
|---|---|---|
| committer | Chris Cappuccio <chris@cvs.openbsd.org> | 2000-05-15 19:15:01 +0000 |
| commit | 953a28f86947804e097e99a07a2b8334dae05c79 (patch) | |
| tree | fa43a5b44f57d193ead15f70c408d0da1305df05 | |
| parent | 8cf9a2b156a83fad04b41b84db6bcc22153c33d5 (diff) | |
Check to make sure vlan tag is valid (12bit) in SIOCSETVLAN
| -rw-r--r-- | sys/net/if_vlan.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c index 6cd892e2739..f7e151e93ad 100644 --- a/sys/net/if_vlan.c +++ b/sys/net/if_vlan.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_vlan.c,v 1.3 2000/04/27 00:00:24 chris Exp $ */ +/* $OpenBSD: if_vlan.c,v 1.4 2000/05/15 19:15:00 chris Exp $ */ /* * Copyright 1998 Massachusetts Institute of Technology * @@ -521,6 +521,10 @@ vlan_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) ifp->if_flags &= ~(IFF_UP|IFF_RUNNING); break; } + if (vlr.vlr_tag != EVL_VLANOFTAG(vlr.vlr_tag)) { + error = EINVAL; /* check for valid tag */ + break; + } pr = ifunit(vlr.vlr_parent); if (pr == 0) { error = ENOENT; |