diff options
| -rw-r--r-- | zebra/rt_netlink.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c index 00eb0b6644..705a035de5 100644 --- a/zebra/rt_netlink.c +++ b/zebra/rt_netlink.c @@ -441,6 +441,29 @@ parse_encap_seg6local(struct rtattr *tb, return act; } +static int parse_encap_seg6(struct rtattr *tb, struct in6_addr *segs) +{ + struct rtattr *tb_encap[256] = {0}; + struct seg6_iptunnel_encap *ipt = NULL; + struct in6_addr *segments = NULL; + + netlink_parse_rtattr_nested(tb_encap, 256, tb); + + /* + * TODO: It's not support multiple SID list. + */ + if (tb_encap[SEG6_IPTUNNEL_SRH]) { + ipt = (struct seg6_iptunnel_encap *) + RTA_DATA(tb_encap[SEG6_IPTUNNEL_SRH]); + segments = ipt->srh[0].segments; + *segs = segments[0]; + return 1; + } + + return 0; +} + + static struct nexthop parse_nexthop_unicast(ns_id_t ns_id, struct rtmsg *rtm, struct rtattr **tb, enum blackhole_type bh_type, int index, void *prefsrc, @@ -452,6 +475,8 @@ parse_nexthop_unicast(ns_id_t ns_id, struct rtmsg *rtm, struct rtattr **tb, int num_labels = 0; enum seg6local_action_t seg6l_act = SEG6_LOCAL_ACTION_UNSPEC; struct seg6local_context seg6l_ctx = {{0}}; + struct in6_addr seg6_segs = {0}; + int num_segs = 0; vrf_id_t nh_vrf_id = vrf_id; size_t sz = (afi == AFI_IP) ? 4 : 16; @@ -496,6 +521,11 @@ parse_nexthop_unicast(ns_id_t ns_id, struct rtmsg *rtm, struct rtattr **tb, == LWTUNNEL_ENCAP_SEG6_LOCAL) { seg6l_act = parse_encap_seg6local(tb[RTA_ENCAP], &seg6l_ctx); } + if (tb[RTA_ENCAP] && tb[RTA_ENCAP_TYPE] + && *(uint16_t *)RTA_DATA(tb[RTA_ENCAP_TYPE]) + == LWTUNNEL_ENCAP_SEG6) { + num_segs = parse_encap_seg6(tb[RTA_ENCAP], &seg6_segs); + } if (rtm->rtm_flags & RTNH_F_ONLINK) SET_FLAG(nh.flags, NEXTHOP_FLAG_ONLINK); @@ -506,6 +536,9 @@ parse_nexthop_unicast(ns_id_t ns_id, struct rtmsg *rtm, struct rtattr **tb, if (seg6l_act != ZEBRA_SEG6_LOCAL_ACTION_UNSPEC) nexthop_add_seg6local(&nh, seg6l_act, &seg6l_ctx); + if (num_segs) + nexthop_add_seg6(&nh, &seg6_segs); + return nh; } @@ -524,6 +557,8 @@ static uint8_t parse_multipath_nexthops_unicast(ns_id_t ns_id, int num_labels = 0; enum seg6local_action_t seg6l_act = SEG6_LOCAL_ACTION_UNSPEC; struct seg6local_context seg6l_ctx = {{0}}; + struct in6_addr seg6_segs = {0}; + int num_segs = 0; struct rtattr *rtnh_tb[RTA_MAX + 1] = {}; int len = RTA_PAYLOAD(tb[RTA_MULTIPATH]); @@ -574,6 +609,12 @@ static uint8_t parse_multipath_nexthops_unicast(ns_id_t ns_id, seg6l_act = parse_encap_seg6local( rtnh_tb[RTA_ENCAP], &seg6l_ctx); } + if (rtnh_tb[RTA_ENCAP] && rtnh_tb[RTA_ENCAP_TYPE] + && *(uint16_t *)RTA_DATA(rtnh_tb[RTA_ENCAP_TYPE]) + == LWTUNNEL_ENCAP_SEG6) { + num_segs = parse_encap_seg6(rtnh_tb[RTA_ENCAP], + &seg6_segs); + } } if (gate && rtm->rtm_family == AF_INET) { @@ -603,6 +644,9 @@ static uint8_t parse_multipath_nexthops_unicast(ns_id_t ns_id, nexthop_add_seg6local(nh, seg6l_act, &seg6l_ctx); + if (num_segs) + nexthop_add_seg6(nh, &seg6_segs); + if (rtnh->rtnh_flags & RTNH_F_ONLINK) SET_FLAG(nh->flags, NEXTHOP_FLAG_ONLINK); |