diff options
| author | ume <ume@FreeBSD.org> | 2002-10-17 17:42:46 +0000 |
|---|---|---|
| committer | ume <ume@FreeBSD.org> | 2002-10-17 17:42:46 +0000 |
| commit | 685116d01884f51622ad2f4105b0387f2f1ddd1f (patch) | |
| tree | 9414d21a62827f715a698d32bf9ec24138b36918 | |
| parent | 6a0b41fbefc5966d26a3da38abeb152ea7682c48 (diff) | |
| download | FreeBSD-src-685116d01884f51622ad2f4105b0387f2f1ddd1f.zip FreeBSD-src-685116d01884f51622ad2f4105b0387f2f1ddd1f.tar.gz | |
- drop too short IPv6 frame
- NULL != 0
Obtained from: KAME
MFC after: 3 weeks
| -rw-r--r-- | sys/net/if_gif.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/sys/net/if_gif.c b/sys/net/if_gif.c index a3d6be3..6186b07 100644 --- a/sys/net/if_gif.c +++ b/sys/net/if_gif.c @@ -278,6 +278,10 @@ gif_encapcheck(m, off, proto, arg) return 0; } + /* Bail on short packets */ + if (m->m_pkthdr.len < sizeof(ip)) + return 0; + m_copydata(m, 0, sizeof(ip), (caddr_t)&ip); switch (ip.ip_v) { @@ -401,7 +405,7 @@ gif_input(m, af, ifp) struct ifnet *ifp; { int isr; - struct ifqueue *ifq = 0; + struct ifqueue *ifq = NULL; if (ifp == NULL) { /* just in case */ @@ -491,7 +495,10 @@ gif_ioctl(ifp, cmd, data) struct ifreq *ifr = (struct ifreq*)data; int error = 0, size; struct sockaddr *dst, *src; - +#ifdef SIOCSIFMTU /* xxx */ + u_long mtu; +#endif + switch (cmd) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; @@ -509,18 +516,16 @@ gif_ioctl(ifp, cmd, data) break; case SIOCSIFMTU: - { - u_long mtu; - mtu = ifr->ifr_mtu; - if (mtu < GIF_MTU_MIN || mtu > GIF_MTU_MAX) { - return (EINVAL); - } - ifp->if_mtu = mtu; - } + mtu = ifr->ifr_mtu; + if (mtu < GIF_MTU_MIN || mtu > GIF_MTU_MAX) + return (EINVAL); + ifp->if_mtu = mtu; break; #endif /* SIOCSIFMTU */ +#ifdef INET case SIOCSIFPHYADDR: +#endif #ifdef INET6 case SIOCSIFPHYADDR_IN6: #endif /* INET6 */ |
