diff options
| author | brian <brian@FreeBSD.org> | 1999-08-06 13:53:03 +0000 |
|---|---|---|
| committer | brian <brian@FreeBSD.org> | 1999-08-06 13:53:03 +0000 |
| commit | 29c67703e3751c283a1bdfe7764effe015c13b83 (patch) | |
| tree | ef1e40a5b9d87f3d7f7d7336ae7dc5a534520d3d /sys/net/if.c | |
| parent | df1c1756e31202c817f6c35422ebc847da176a0a (diff) | |
| download | FreeBSD-src-29c67703e3751c283a1bdfe7764effe015c13b83.zip FreeBSD-src-29c67703e3751c283a1bdfe7764effe015c13b83.tar.gz | |
Define IF_MAXMTU and IF_MINMTU and don't allow MTUs with
out-of-range values.
``comparison is always 0'' warnings are silly !
Ok'd by: wollman, dg
Advised by: bde
Diffstat (limited to 'sys/net/if.c')
| -rw-r--r-- | sys/net/if.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/sys/net/if.c b/sys/net/if.c index c6f5c5e..1887c91 100644 --- a/sys/net/if.c +++ b/sys/net/if.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)if.c 8.3 (Berkeley) 1/4/94 - * $Id: if.c,v 1.72 1999/06/06 09:28:01 phk Exp $ + * $Id: if.c,v 1.73 1999/06/19 18:42:26 phk Exp $ */ #include "opt_compat.h" @@ -685,11 +685,7 @@ ifioctl(so, cmd, data, p) return (error); if (ifp->if_ioctl == NULL) return (EOPNOTSUPP); - /* - * 72 was chosen below because it is the size of a TCP/IP - * header (40) + the minimum mss (32). - */ - if (ifr->ifr_mtu < 72 || ifr->ifr_mtu > 65535) + if (ifr->ifr_mtu < IF_MINMTU || ifr->ifr_mtu > IF_MAXMTU) return (EINVAL); error = (*ifp->if_ioctl)(ifp, cmd, data); if (error == 0) |
