diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2018-10-16 03:00:28 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2018-10-16 03:00:28 +0000 |
| commit | 489561a43e1c8d9ff451f17dc549a254c5f7b0c1 (patch) | |
| tree | ac43f72be051fbc8da4d21b82a29cf92bbca71c7 /sys/net | |
| parent | 8e2a7700aa87f6457d8fd7eda1b74690ac6cf810 (diff) | |
pull and put the traffic class in ipv6 headers
this gives ipv6 handling equivalent the tos stuff in ipv4.
ok visa@ benno@
Diffstat (limited to 'sys/net')
| -rw-r--r-- | sys/net/if_gre.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/sys/net/if_gre.c b/sys/net/if_gre.c index 1c9a9bda44d..143db4e39c3 100644 --- a/sys/net/if_gre.c +++ b/sys/net/if_gre.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_gre.c,v 1.124 2018/07/24 07:40:35 yasuoka Exp $ */ +/* $OpenBSD: if_gre.c,v 1.125 2018/10/16 03:00:27 dlg Exp $ */ /* $NetBSD: if_gre.c,v 1.9 1999/10/25 19:18:11 drochner Exp $ */ /* @@ -1896,11 +1896,20 @@ gre_l3_encap_dst(const struct gre_tunnel *tunnel, const void *dst, break; } #ifdef INET6 - case AF_INET6: - tos = 0; + case AF_INET6: { + struct ip6_hdr *ip6; + + m = m_pullup(m, sizeof(*ip6)); + if (m == NULL) + return (NULL); + + ip6 = mtod(m, struct ip6_hdr *); + tos = (ntohl(ip6->ip6_flow) & 0x0ff00000) >> 20; + ttloff = offsetof(struct ip6_hdr, ip6_hlim); proto = htons(ETHERTYPE_IPV6); break; + } #endif #ifdef MPLS case AF_MPLS: @@ -2001,6 +2010,7 @@ gre_encap_dst_ip(const struct gre_tunnel *tunnel, const union gre_addr *dst, ip6->ip6_flow = ISSET(m->m_pkthdr.ph_flowid, M_FLOWID_VALID) ? htonl(m->m_pkthdr.ph_flowid & M_FLOWID_MASK) : 0; ip6->ip6_vfc |= IPV6_VERSION; + ip6->ip6_flow |= htonl((uint32_t)tos << 20); ip6->ip6_plen = htons(len); ip6->ip6_nxt = IPPROTO_GRE; ip6->ip6_hlim = ttl; |