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_ppp.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_ppp.c')
| -rw-r--r-- | sys/net/if_ppp.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sys/net/if_ppp.c b/sys/net/if_ppp.c index a1490bb..9598d21 100644 --- a/sys/net/if_ppp.c +++ b/sys/net/if_ppp.c @@ -69,7 +69,7 @@ * Paul Mackerras (paulus@cs.anu.edu.au). */ -/* $Id: if_ppp.c,v 1.60 1999/04/27 11:17:00 phk Exp $ */ +/* $Id: if_ppp.c,v 1.61 1999/07/06 19:23:13 des Exp $ */ /* from if_sl.c,v 1.11 84/10/04 12:54:47 rick Exp */ /* from NetBSD: if_ppp.c,v 1.15.2.2 1994/07/28 05:17:58 cgd Exp */ @@ -618,9 +618,13 @@ pppsioctl(ifp, cmd, data) if (ifr->ifr_mtu > PPP_MAXMTU) error = EINVAL; else { - sc->sc_if.if_mtu = ifr->ifr_mtu; - if (sc->sc_setmtu) + if (ifr->ifr_mtu < IF_MINMTU || ifr->ifr_mtu > IF_MAXMTU) + error = EINVAL; + else { + sc->sc_if.if_mtu = ifr->ifr_mtu; + if (sc->sc_setmtu) (*sc->sc_setmtu)(sc); + } } break; |
