diff options
| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-11-06 15:42:44 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-11-15 10:56:14 +0100 |
| commit | e0b4edbdcc3558d3f38af8398f995c2e9f019f07 (patch) | |
| tree | ea91a5fcfb9b6a66a8c0b74cf68ff8d450ce17e0 /freebsd/sys/net/if_ethersubr.c | |
| parent | Disable or make static kern_* functions (diff) | |
| download | rtems-libbsd-e0b4edbdcc3558d3f38af8398f995c2e9f019f07.tar.bz2 | |
Update to FreeBSD head 2018-11-15
Git mirror commit a18b0830c4be01b39489a891b63d6023ada6358a.
Update #3472.
Diffstat (limited to 'freebsd/sys/net/if_ethersubr.c')
| -rw-r--r-- | freebsd/sys/net/if_ethersubr.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/freebsd/sys/net/if_ethersubr.c b/freebsd/sys/net/if_ethersubr.c index 01e757e5..96ed309a 100644 --- a/freebsd/sys/net/if_ethersubr.c +++ b/freebsd/sys/net/if_ethersubr.c @@ -477,6 +477,26 @@ ether_output_frame(struct ifnet *ifp, struct mbuf *m) return (0); } +#ifdef EXPERIMENTAL +#if defined(INET6) && defined(INET) + /* draft-ietf-6man-ipv6only-flag */ + /* Catch ETHERTYPE_IP, and ETHERTYPE_ARP if we are v6-only. */ + if ((ND_IFINFO(ifp)->flags & ND6_IFF_IPV6_ONLY) != 0) { + struct ether_header *eh; + + eh = mtod(m, struct ether_header *); + switch (ntohs(eh->ether_type)) { + case ETHERTYPE_IP: + case ETHERTYPE_ARP: + m_freem(m); + return (EAFNOSUPPORT); + /* NOTREACHED */ + break; + }; + } +#endif +#endif + /* * Queue message on interface, update output statistics if * successful, and start output if interface not yet active. |