diff options
| author | ume <ume@FreeBSD.org> | 2003-10-20 15:27:48 +0000 |
|---|---|---|
| committer | ume <ume@FreeBSD.org> | 2003-10-20 15:27:48 +0000 |
| commit | 1bfb4986099befab26dc0c1e40e47e89f92f62fb (patch) | |
| tree | 9f0a5ced322cdbe6ab2dbce0993f3b61ac529326 /sys/netinet6/ip6_mroute.c | |
| parent | 1ebf2012445124bd775073056a9019ead10872fa (diff) | |
| download | FreeBSD-src-1bfb4986099befab26dc0c1e40e47e89f92f62fb.zip FreeBSD-src-1bfb4986099befab26dc0c1e40e47e89f92f62fb.tar.gz | |
correct linkmtu handling.
Obtained from: KAME
Diffstat (limited to 'sys/netinet6/ip6_mroute.c')
| -rw-r--r-- | sys/netinet6/ip6_mroute.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/netinet6/ip6_mroute.c b/sys/netinet6/ip6_mroute.c index eeb9b21..607a2ea 100644 --- a/sys/netinet6/ip6_mroute.c +++ b/sys/netinet6/ip6_mroute.c @@ -113,6 +113,7 @@ #include <netinet/ip6.h> #include <netinet6/ip6_var.h> +#include <netinet6/nd6.h> #include <netinet6/ip6_mroute.h> #include <netinet6/pim6.h> #include <netinet6/pim6_var.h> @@ -1454,6 +1455,7 @@ phyint_send(ip6, mifp, m) static struct route_in6 ro; struct in6_multi *in6m; struct sockaddr_in6 *dst6; + u_long linkmtu; /* * Make a new reference to the packet; make sure that @@ -1513,7 +1515,8 @@ phyint_send(ip6, mifp, m) * Put the packet into the sending queue of the outgoing interface * if it would fit in the MTU of the interface. */ - if (mb_copy->m_pkthdr.len <= ifp->if_mtu || ifp->if_mtu < IPV6_MMTU) { + linkmtu = IN6_LINKMTU(ifp); + if (mb_copy->m_pkthdr.len <= linkmtu || linkmtu < IPV6_MMTU) { dst6->sin6_len = sizeof(struct sockaddr_in6); dst6->sin6_family = AF_INET6; dst6->sin6_addr = ip6->ip6_dst; @@ -1530,7 +1533,7 @@ phyint_send(ip6, mifp, m) #endif } else { #ifdef MULTICAST_PMTUD - icmp6_error(mb_copy, ICMP6_PACKET_TOO_BIG, 0, ifp->if_mtu); + icmp6_error(mb_copy, ICMP6_PACKET_TOO_BIG, 0, linkmtu); #else #ifdef MRT6DEBUG if (mrt6debug & DEBUG_XMIT) |
