diff options
Diffstat (limited to 'zebra/rt_netlink.c')
| -rw-r--r-- | zebra/rt_netlink.c | 158 |
1 files changed, 2 insertions, 156 deletions
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c index 87c60453bf..45bc3b3ba0 100644 --- a/zebra/rt_netlink.c +++ b/zebra/rt_netlink.c @@ -2616,161 +2616,10 @@ int kernel_del_neigh(struct interface *ifp, struct ipaddr *ip) } /* - * MPLS label forwarding table change via netlink interface. - */ -int netlink_mpls_multipath(int cmd, zebra_lsp_t *lsp) -{ - mpls_lse_t lse; - zebra_nhlfe_t *nhlfe; - struct nexthop *nexthop = NULL; - unsigned int nexthop_num; - const char *routedesc; - struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); - int route_type; - - struct { - struct nlmsghdr n; - struct rtmsg r; - char buf[NL_PKT_BUF_SIZE]; - } req; - - memset(&req, 0, sizeof req - NL_PKT_BUF_SIZE); - - /* - * Count # nexthops so we can decide whether to use singlepath - * or multipath case. - */ - nexthop_num = 0; - for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { - nexthop = nhlfe->nexthop; - if (!nexthop) - continue; - if (cmd == RTM_NEWROUTE) { - /* Count all selected NHLFEs */ - if (CHECK_FLAG(nhlfe->flags, NHLFE_FLAG_SELECTED) - && CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) - nexthop_num++; - } else /* DEL */ - { - /* Count all installed NHLFEs */ - if (CHECK_FLAG(nhlfe->flags, NHLFE_FLAG_INSTALLED) - && CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB)) - nexthop_num++; - } - } - - if ((nexthop_num == 0) || (!lsp->best_nhlfe && (cmd != RTM_DELROUTE))) - return 0; - - req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)); - req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REQUEST; - req.n.nlmsg_type = cmd; - req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; - - req.r.rtm_family = AF_MPLS; - req.r.rtm_table = RT_TABLE_MAIN; - req.r.rtm_dst_len = MPLS_LABEL_LEN_BITS; - req.r.rtm_scope = RT_SCOPE_UNIVERSE; - req.r.rtm_type = RTN_UNICAST; - - if (cmd == RTM_NEWROUTE) { - /* We do a replace to handle update. */ - req.n.nlmsg_flags |= NLM_F_REPLACE; - - /* set the protocol value if installing */ - route_type = re_type_from_lsp_type(lsp->best_nhlfe->type); - req.r.rtm_protocol = zebra2proto(route_type); - } - - /* Fill destination */ - lse = mpls_lse_encode(lsp->ile.in_label, 0, 0, 1); - addattr_l(&req.n, sizeof req, RTA_DST, &lse, sizeof(mpls_lse_t)); - - /* Fill nexthops (paths) based on single-path or multipath. The paths - * chosen depend on the operation. - */ - if (nexthop_num == 1) { - routedesc = "single-path"; - _netlink_mpls_debug(cmd, lsp->ile.in_label, routedesc); - - nexthop_num = 0; - for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { - nexthop = nhlfe->nexthop; - if (!nexthop) - continue; - - if ((cmd == RTM_NEWROUTE - && (CHECK_FLAG(nhlfe->flags, NHLFE_FLAG_SELECTED) - && CHECK_FLAG(nexthop->flags, - NEXTHOP_FLAG_ACTIVE))) - || (cmd == RTM_DELROUTE - && (CHECK_FLAG(nhlfe->flags, - NHLFE_FLAG_INSTALLED) - && CHECK_FLAG(nexthop->flags, - NEXTHOP_FLAG_FIB)))) { - /* Add the gateway */ - _netlink_mpls_build_singlepath(routedesc, nhlfe, - &req.n, &req.r, - sizeof req, cmd); - nexthop_num++; - break; - } - } - } else /* Multipath case */ - { - char buf[NL_PKT_BUF_SIZE]; - struct rtattr *rta = (void *)buf; - struct rtnexthop *rtnh; - union g_addr *src1 = NULL; - - rta->rta_type = RTA_MULTIPATH; - rta->rta_len = RTA_LENGTH(0); - rtnh = RTA_DATA(rta); - - routedesc = "multipath"; - _netlink_mpls_debug(cmd, lsp->ile.in_label, routedesc); - - nexthop_num = 0; - for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) { - nexthop = nhlfe->nexthop; - if (!nexthop) - continue; - - if ((cmd == RTM_NEWROUTE - && (CHECK_FLAG(nhlfe->flags, NHLFE_FLAG_SELECTED) - && CHECK_FLAG(nexthop->flags, - NEXTHOP_FLAG_ACTIVE))) - || (cmd == RTM_DELROUTE - && (CHECK_FLAG(nhlfe->flags, - NHLFE_FLAG_INSTALLED) - && CHECK_FLAG(nexthop->flags, - NEXTHOP_FLAG_FIB)))) { - nexthop_num++; - - /* Build the multipath */ - _netlink_mpls_build_multipath(routedesc, nhlfe, - rta, rtnh, &req.r, - &src1); - rtnh = RTNH_NEXT(rtnh); - } - } - - /* Add the multipath */ - if (rta->rta_len > RTA_LENGTH(0)) - addattr_l(&req.n, NL_PKT_BUF_SIZE, RTA_MULTIPATH, - RTA_DATA(rta), RTA_PAYLOAD(rta)); - } - - /* Talk to netlink socket. */ - return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, - 0); -} - -/* * MPLS label forwarding table change via netlink interface, using dataplane * context information. */ -int netlink_mpls_multipath_ctx(int cmd, struct zebra_dplane_ctx *ctx) +int netlink_mpls_multipath(int cmd, struct zebra_dplane_ctx *ctx) { mpls_lse_t lse; zebra_nhlfe_t *nhlfe; @@ -2841,7 +2690,7 @@ int netlink_mpls_multipath_ctx(int cmd, struct zebra_dplane_ctx *ctx) /* Fill nexthops (paths) based on single-path or multipath. The paths * chosen depend on the operation. */ - if (nexthop_num == 1 || multipath_num == 1) { + if (nexthop_num == 1) { routedesc = "single-path"; _netlink_mpls_debug(cmd, dplane_ctx_get_in_label(ctx), routedesc); @@ -2893,9 +2742,6 @@ int netlink_mpls_multipath_ctx(int cmd, struct zebra_dplane_ctx *ctx) if (!nexthop) continue; - if (nexthop_num >= multipath_num) - break; - if ((cmd == RTM_NEWROUTE && (CHECK_FLAG(nhlfe->flags, NHLFE_FLAG_SELECTED) && CHECK_FLAG(nexthop->flags, |