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zebra: handle ipv6-mapped-ipv4 with DVNI

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Properly handle ipv6-mapped-ipv4 with DVNI by converting
the address to ipv4 and setting that as the DST field for
the encap.

Signed-off-by: Stephen Worley <sworley@nvidia.com>
This commit is contained in:
Stephen Worley 2021-06-14 23:43:05 -04:00
parent 24acbd9c7f
commit fb99ca86c4
1 changed files with 12 additions and 3 deletions
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15
zebra/rt_netlink.c
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@ -1370,6 +1370,7 @@ static bool _netlink_route_encode_label_info(const struct nexthop *nexthop,
struct rtattr *nest;
struct mpls_label_stack *nh_label;
enum lsp_types_t nh_label_type;
struct in_addr ipv4;
nh_label = nexthop->nh_label;
nh_label_type = nexthop->nh_label_type;
@ -1405,10 +1406,18 @@ static bool _netlink_route_encode_label_info(const struct nexthop *nexthop,
return false;
} else if (nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) {
if (!nl_attr_put(nlmsg, buflen, LWTUNNEL_IP_DST,
&nexthop->gate.ipv6, 16))
return false;
if (IS_MAPPED_IPV6(&nexthop->gate.ipv6)) {
ipv4_mapped_ipv6_to_ipv4(&nexthop->gate.ipv6,
&ipv4);
if (!nl_attr_put(nlmsg, buflen, LWTUNNEL_IP_DST,
&ipv4, 4))
return false;
} else {
if (!nl_attr_put(nlmsg, buflen, LWTUNNEL_IP_DST,
&nexthop->gate.ipv6, 16))
return false;
}
} else {
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug(