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- drop too short IPv6 frame

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- NULL != 0

Obtained from:	KAME
MFC after:	3 weeks
This commit is contained in:
Hajimu UMEMOTO 2002-10-17 17:42:46 +00:00
parent 21fb391fdb
commit 3bb61ca669
1 changed files with 15 additions and 10 deletions
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25
sys/net/if_gif.c
View file

@ -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 */