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| author | Zhenlei Huang <zlei.huang@gmail.com> | 2021-08-22 22:28:47 +0000 |
|---|---|---|
| committer | Alexander V. Chernikov <melifaro@FreeBSD.org> | 2021-08-22 22:56:08 +0000 |
| commit | 62e1a437f3285e785d9b35a476d36a469a90028d (patch) | |
| tree | 371cf19e2cae5884ebac7bc3a864d2b056aa7f1c /sys/dev/cxgbe | |
| parent | eccb516db8b7fec957b139c3a9a2e16175551067 (diff) | |
| download | src-62e1a437f3285e785d9b35a476d36a469a90028d.tar.gz src-62e1a437f3285e785d9b35a476d36a469a90028d.zip | |
routing: Allow using IPv6 next-hops for IPv4 routes (RFC 5549).
Implement kernel support for RFC 5549/8950.
* Relax control plane restrictions and allow specifying IPv6 gateways
for IPv4 routes. This behavior is controlled by the
net.route.rib_route_ipv6_nexthop sysctl (on by default).
* Always pass final destination in ro->ro_dst in ip_forward().
* Use ro->ro_dst to exract packet family inside if_output() routines.
Consistently use RO_GET_FAMILY() macro to handle ro=NULL case.
* Pass extracted family to nd6_resolve() to get the LLE with proper encap.
It leverages recent lltable changes committed in c541bd368f86.
Presence of the functionality can be checked using ipv4_rfc5549_support feature(3).
Example usage:
route add -net 192.0.0.0/24 -inet6 fe80::5054:ff:fe14:e319%vtnet0
Differential Revision: https://reviews.freebsd.org/D30398
MFC after: 2 weeks
Diffstat (limited to 'sys/dev/cxgbe')
| -rw-r--r-- | sys/dev/cxgbe/tom/t4_listen.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/dev/cxgbe/tom/t4_listen.c b/sys/dev/cxgbe/tom/t4_listen.c index 8623079fe429..4d98597409d6 100644 --- a/sys/dev/cxgbe/tom/t4_listen.c +++ b/sys/dev/cxgbe/tom/t4_listen.c @@ -1113,7 +1113,10 @@ get_l2te_for_nexthop(struct port_info *pi, struct ifnet *ifp, if (nh->nh_ifp != ifp) return (NULL); if (nh->nh_flags & NHF_GATEWAY) - ((struct sockaddr_in *)dst)->sin_addr = nh->gw4_sa.sin_addr; + if (nh->gw_sa.sa_family == AF_INET) + ((struct sockaddr_in *)dst)->sin_addr = nh->gw4_sa.sin_addr; + else + *((struct sockaddr_in6 *)dst) = nh->gw6_sa; else ((struct sockaddr_in *)dst)->sin_addr = inc->inc_faddr; } |