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-rw-r--r--ldpd/ldp_zebra.c713
1 files changed, 713 insertions, 0 deletions
diff --git a/ldpd/ldp_zebra.c b/ldpd/ldp_zebra.c
new file mode 100644
index 0000000..0fd5d46
--- /dev/null
+++ b/ldpd/ldp_zebra.c
@@ -0,0 +1,713 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2016 by Open Source Routing.
+ */
+
+#include <zebra.h>
+
+#include "prefix.h"
+#include "stream.h"
+#include "memory.h"
+#include "zclient.h"
+#include "command.h"
+#include "network.h"
+#include "linklist.h"
+#include "mpls.h"
+
+#include "ldpd.h"
+#include "ldpe.h"
+#include "lde.h"
+#include "ldp_sync.h"
+#include "log.h"
+#include "ldp_debug.h"
+
+static void ifp2kif(struct interface *, struct kif *);
+static void ifc2kaddr(struct interface *, struct connected *, struct kaddr *);
+static int ldp_zebra_send_mpls_labels(int, struct kroute *);
+static int ldp_router_id_update(ZAPI_CALLBACK_ARGS);
+static int ldp_interface_address_add(ZAPI_CALLBACK_ARGS);
+static int ldp_interface_address_delete(ZAPI_CALLBACK_ARGS);
+static int ldp_zebra_read_route(ZAPI_CALLBACK_ARGS);
+static int ldp_zebra_read_pw_status_update(ZAPI_CALLBACK_ARGS);
+static void ldp_zebra_connected(struct zclient *);
+static void ldp_zebra_filter_update(struct access_list *access);
+
+static void ldp_zebra_opaque_register(void);
+static void ldp_zebra_opaque_unregister(void);
+static int ldp_sync_zebra_send_announce(void);
+static int ldp_zebra_opaque_msg_handler(ZAPI_CALLBACK_ARGS);
+static void ldp_sync_zebra_init(void);
+
+static struct zclient *zclient;
+extern struct zclient *zclient_sync;
+static bool zebra_registered = false;
+
+static void
+ifp2kif(struct interface *ifp, struct kif *kif)
+{
+ memset(kif, 0, sizeof(*kif));
+ strlcpy(kif->ifname, ifp->name, sizeof(kif->ifname));
+ kif->ifindex = ifp->ifindex;
+ kif->operative = if_is_operative(ifp);
+ if (ifp->ll_type == ZEBRA_LLT_ETHER)
+ memcpy(kif->mac, ifp->hw_addr, ETH_ALEN);
+}
+
+static void
+ifc2kaddr(struct interface *ifp, struct connected *ifc, struct kaddr *ka)
+{
+ memset(ka, 0, sizeof(*ka));
+ strlcpy(ka->ifname, ifp->name, sizeof(ka->ifname));
+ ka->ifindex = ifp->ifindex;
+ ka->af = ifc->address->family;
+ ka->prefixlen = ifc->address->prefixlen;
+
+ switch (ka->af) {
+ case AF_INET:
+ ka->addr.v4 = ifc->address->u.prefix4;
+ if (ifc->destination)
+ ka->dstbrd.v4 = ifc->destination->u.prefix4;
+ break;
+ case AF_INET6:
+ ka->addr.v6 = ifc->address->u.prefix6;
+ if (ifc->destination)
+ ka->dstbrd.v6 = ifc->destination->u.prefix6;
+ break;
+ default:
+ break;
+ }
+}
+
+void
+pw2zpw(struct l2vpn_pw *pw, struct zapi_pw *zpw)
+{
+ memset(zpw, 0, sizeof(*zpw));
+ strlcpy(zpw->ifname, pw->ifname, sizeof(zpw->ifname));
+ zpw->ifindex = pw->ifindex;
+ zpw->type = pw->l2vpn->pw_type;
+ zpw->af = pw->af;
+ zpw->nexthop.ipv6 = pw->addr.v6;
+ zpw->local_label = NO_LABEL;
+ zpw->remote_label = NO_LABEL;
+ if (CHECK_FLAG(pw->flags, F_PW_CWORD))
+ zpw->flags = F_PSEUDOWIRE_CWORD;
+ zpw->data.ldp.lsr_id = pw->lsr_id;
+ zpw->data.ldp.pwid = pw->pwid;
+ strlcpy(zpw->data.ldp.vpn_name, pw->l2vpn->name,
+ sizeof(zpw->data.ldp.vpn_name));
+}
+
+static void
+ldp_zebra_opaque_register(void)
+{
+ zclient_register_opaque(zclient, LDP_IGP_SYNC_IF_STATE_REQUEST);
+ zclient_register_opaque(zclient, LDP_RLFA_REGISTER);
+ zclient_register_opaque(zclient, LDP_RLFA_UNREGISTER_ALL);
+}
+
+static void
+ldp_zebra_opaque_unregister(void)
+{
+ zclient_unregister_opaque(zclient, LDP_IGP_SYNC_IF_STATE_REQUEST);
+ zclient_unregister_opaque(zclient, LDP_RLFA_REGISTER);
+ zclient_unregister_opaque(zclient, LDP_RLFA_UNREGISTER_ALL);
+}
+
+int
+ldp_sync_zebra_send_state_update(struct ldp_igp_sync_if_state *state)
+{
+ if (zclient_send_opaque(zclient, LDP_IGP_SYNC_IF_STATE_UPDATE,
+ (const uint8_t *)state, sizeof(*state))
+ == ZCLIENT_SEND_FAILURE)
+ return -1;
+ else
+ return 0;
+}
+
+static int
+ldp_sync_zebra_send_announce(void)
+{
+ struct ldp_igp_sync_announce announce;
+ announce.proto = ZEBRA_ROUTE_LDP;
+
+ if (zclient_send_opaque(zclient, LDP_IGP_SYNC_ANNOUNCE_UPDATE,
+ (const uint8_t *)&announce, sizeof(announce))
+ == ZCLIENT_SEND_FAILURE)
+ return -1;
+ else
+ return 0;
+}
+
+int ldp_zebra_send_rlfa_labels(struct zapi_rlfa_response *rlfa_labels)
+{
+ int ret;
+
+ ret = zclient_send_opaque(zclient, LDP_RLFA_LABELS,
+ (const uint8_t *)rlfa_labels,
+ sizeof(*rlfa_labels));
+ if (ret == ZCLIENT_SEND_FAILURE) {
+ log_warn("failed to send RLFA labels to IGP");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+ldp_zebra_opaque_msg_handler(ZAPI_CALLBACK_ARGS)
+{
+ struct stream *s;
+ struct zapi_opaque_msg info;
+ struct ldp_igp_sync_if_state_req state_req;
+ struct zapi_rlfa_igp igp;
+ struct zapi_rlfa_request rlfa;
+
+ s = zclient->ibuf;
+
+ if(zclient_opaque_decode(s, &info) != 0)
+ return -1;
+
+ switch (info.type) {
+ case LDP_IGP_SYNC_IF_STATE_REQUEST:
+ STREAM_GET(&state_req, s, sizeof(state_req));
+ main_imsg_compose_ldpe(IMSG_LDP_SYNC_IF_STATE_REQUEST, 0, &state_req,
+ sizeof(state_req));
+ break;
+ case LDP_RLFA_REGISTER:
+ STREAM_GET(&rlfa, s, sizeof(rlfa));
+ main_imsg_compose_both(IMSG_RLFA_REG, &rlfa, sizeof(rlfa));
+ break;
+ case LDP_RLFA_UNREGISTER_ALL:
+ STREAM_GET(&igp, s, sizeof(igp));
+ main_imsg_compose_both(IMSG_RLFA_UNREG_ALL, &igp, sizeof(igp));
+ break;
+ default:
+ break;
+ }
+
+stream_failure:
+ return 0;
+}
+
+static void
+ldp_sync_zebra_init(void)
+{
+ ldp_sync_zebra_send_announce();
+}
+
+static int
+ldp_zebra_send_mpls_labels(int cmd, struct kroute *kr)
+{
+ struct zapi_labels zl = {};
+ struct zapi_nexthop *znh;
+
+ if (kr->local_label < MPLS_LABEL_RESERVED_MAX)
+ return (0);
+
+ debug_zebra_out("prefix %s/%u nexthop %s ifindex %u labels %s/%s (%s)",
+ log_addr(kr->af, &kr->prefix), kr->prefixlen,
+ log_addr(kr->af, &kr->nexthop), kr->ifindex,
+ log_label(kr->local_label), log_label(kr->remote_label),
+ (cmd == ZEBRA_MPLS_LABELS_ADD) ? "add" : "delete");
+
+ zl.type = ZEBRA_LSP_LDP;
+ zl.local_label = kr->local_label;
+
+ /* Set prefix. */
+ if (kr->remote_label != NO_LABEL) {
+ SET_FLAG(zl.message, ZAPI_LABELS_FTN);
+ zl.route.prefix.family = kr->af;
+ switch (kr->af) {
+ case AF_INET:
+ zl.route.prefix.u.prefix4 = kr->prefix.v4;
+ break;
+ case AF_INET6:
+ zl.route.prefix.u.prefix6 = kr->prefix.v6;
+ break;
+ default:
+ fatalx("ldp_zebra_send_mpls_labels: unknown af");
+ }
+ zl.route.prefix.prefixlen = kr->prefixlen;
+ zl.route.type = kr->route_type;
+ zl.route.instance = kr->route_instance;
+ }
+
+ /* If allow-broken-lsps is enabled then if an lsp is received with
+ * no remote label, instruct the forwarding plane to pop the top-level
+ * label and forward packets normally. This is a best-effort attempt
+ * to deliver labeled IP packets to their final destination (instead of
+ * dropping them).
+ */
+ if (kr->remote_label == NO_LABEL
+ && !CHECK_FLAG(ldpd_conf->flags, F_LDPD_ALLOW_BROKEN_LSP)
+ && cmd == ZEBRA_MPLS_LABELS_ADD)
+ return 0;
+
+ if (kr->remote_label == NO_LABEL)
+ kr->remote_label = MPLS_LABEL_IMPLICIT_NULL;
+
+ /* Set nexthop. */
+ zl.nexthop_num = 1;
+ znh = &zl.nexthops[0];
+ switch (kr->af) {
+ case AF_INET:
+ znh->gate.ipv4 = kr->nexthop.v4;
+ if (kr->ifindex)
+ znh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
+ else
+ znh->type = NEXTHOP_TYPE_IPV4;
+ break;
+ case AF_INET6:
+ znh->gate.ipv6 = kr->nexthop.v6;
+ if (kr->ifindex)
+ znh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
+ else
+ znh->type = NEXTHOP_TYPE_IPV6;
+ break;
+ default:
+ break;
+ }
+ znh->ifindex = kr->ifindex;
+ znh->label_num = 1;
+ znh->labels[0] = kr->remote_label;
+
+ if (zebra_send_mpls_labels(zclient, cmd, &zl) == ZCLIENT_SEND_FAILURE)
+ return -1;
+
+ return 0;
+}
+
+int
+kr_change(struct kroute *kr)
+{
+ return (ldp_zebra_send_mpls_labels(ZEBRA_MPLS_LABELS_ADD, kr));
+}
+
+int
+kr_delete(struct kroute *kr)
+{
+ return (ldp_zebra_send_mpls_labels(ZEBRA_MPLS_LABELS_DELETE, kr));
+}
+
+int
+kmpw_add(struct zapi_pw *zpw)
+{
+ debug_zebra_out("pseudowire %s nexthop %s (add)",
+ zpw->ifname, log_addr(zpw->af, (union ldpd_addr *)&zpw->nexthop));
+
+ return zebra_send_pw(zclient, ZEBRA_PW_ADD, zpw) == ZCLIENT_SEND_FAILURE;
+}
+
+int
+kmpw_del(struct zapi_pw *zpw)
+{
+ debug_zebra_out("pseudowire %s nexthop %s (del)",
+ zpw->ifname, log_addr(zpw->af, (union ldpd_addr *)&zpw->nexthop));
+
+ return zebra_send_pw(zclient, ZEBRA_PW_DELETE, zpw) == ZCLIENT_SEND_FAILURE;
+}
+
+int
+kmpw_set(struct zapi_pw *zpw)
+{
+ debug_zebra_out("pseudowire %s nexthop %s labels %u/%u (set)",
+ zpw->ifname, log_addr(zpw->af, (union ldpd_addr *)&zpw->nexthop),
+ zpw->local_label, zpw->remote_label);
+
+ return zebra_send_pw(zclient, ZEBRA_PW_SET, zpw) == ZCLIENT_SEND_FAILURE;
+}
+
+int
+kmpw_unset(struct zapi_pw *zpw)
+{
+ debug_zebra_out("pseudowire %s nexthop %s (unset)",
+ zpw->ifname, log_addr(zpw->af, (union ldpd_addr *)&zpw->nexthop));
+
+ return zebra_send_pw(zclient, ZEBRA_PW_UNSET, zpw) == ZCLIENT_SEND_FAILURE;
+}
+
+void
+kif_redistribute(const char *ifname)
+{
+ struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT);
+ struct listnode *cnode;
+ struct interface *ifp;
+ struct connected *ifc;
+ struct kif kif;
+ struct kaddr ka;
+
+ FOR_ALL_INTERFACES (vrf, ifp) {
+ if (ifname && strcmp(ifname, ifp->name) != 0)
+ continue;
+
+ ifp2kif(ifp, &kif);
+ main_imsg_compose_both(IMSG_IFSTATUS, &kif, sizeof(kif));
+
+ for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) {
+ ifc2kaddr(ifp, ifc, &ka);
+ main_imsg_compose_ldpe(IMSG_NEWADDR, 0, &ka, sizeof(ka));
+ }
+ }
+}
+
+static int
+ldp_router_id_update(ZAPI_CALLBACK_ARGS)
+{
+ struct prefix router_id;
+
+ zebra_router_id_update_read(zclient->ibuf, &router_id);
+
+ if (bad_addr_v4(router_id.u.prefix4))
+ return (0);
+
+ debug_zebra_in("router-id update %pI4", &router_id.u.prefix4);
+
+ global.rtr_id.s_addr = router_id.u.prefix4.s_addr;
+ main_imsg_compose_ldpe(IMSG_RTRID_UPDATE, 0, &global.rtr_id,
+ sizeof(global.rtr_id));
+
+ return (0);
+}
+
+static int
+ldp_ifp_create(struct interface *ifp)
+{
+ struct kif kif;
+
+ debug_zebra_in("interface add %s index %d mtu %d", ifp->name,
+ ifp->ifindex, ifp->mtu);
+
+ ifp2kif(ifp, &kif);
+ main_imsg_compose_both(IMSG_IFSTATUS, &kif, sizeof(kif));
+
+ return 0;
+}
+
+static int
+ldp_ifp_destroy(struct interface *ifp)
+{
+ struct kif kif;
+
+ debug_zebra_in("interface delete %s index %d mtu %d", ifp->name,
+ ifp->ifindex, ifp->mtu);
+
+ ifp2kif(ifp, &kif);
+ main_imsg_compose_both(IMSG_IFSTATUS, &kif, sizeof(kif));
+
+ return (0);
+}
+
+static int
+ldp_interface_status_change(struct interface *ifp)
+{
+ struct listnode *node;
+ struct connected *ifc;
+ struct kif kif;
+ struct kaddr ka;
+
+ debug_zebra_in("interface %s state update", ifp->name);
+
+ ifp2kif(ifp, &kif);
+ main_imsg_compose_both(IMSG_IFSTATUS, &kif, sizeof(kif));
+
+ if (if_is_operative(ifp)) {
+ for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) {
+ ifc2kaddr(ifp, ifc, &ka);
+ main_imsg_compose_ldpe(IMSG_NEWADDR, 0, &ka, sizeof(ka));
+ }
+ } else {
+ for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) {
+ ifc2kaddr(ifp, ifc, &ka);
+ main_imsg_compose_ldpe(IMSG_DELADDR, 0, &ka, sizeof(ka));
+ }
+ }
+
+ return (0);
+}
+
+static int ldp_ifp_up(struct interface *ifp)
+{
+ return ldp_interface_status_change(ifp);
+}
+
+static int ldp_ifp_down(struct interface *ifp)
+{
+ return ldp_interface_status_change(ifp);
+}
+
+static int
+ldp_interface_address_add(ZAPI_CALLBACK_ARGS)
+{
+ struct connected *ifc;
+ struct interface *ifp;
+ struct kaddr ka;
+
+ ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
+ if (ifc == NULL)
+ return (0);
+
+ ifp = ifc->ifp;
+ ifc2kaddr(ifp, ifc, &ka);
+
+ /* Filter invalid addresses. */
+ if (bad_addr(ka.af, &ka.addr))
+ return (0);
+
+ debug_zebra_in("address add %s/%u interface %s",
+ log_addr(ka.af, &ka.addr), ka.prefixlen, ifp->name);
+
+ /* notify ldpe about new address */
+ main_imsg_compose_ldpe(IMSG_NEWADDR, 0, &ka, sizeof(ka));
+
+ return (0);
+}
+
+static int
+ldp_interface_address_delete(ZAPI_CALLBACK_ARGS)
+{
+ struct connected *ifc;
+ struct interface *ifp;
+ struct kaddr ka;
+
+ ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
+ if (ifc == NULL)
+ return (0);
+
+ ifp = ifc->ifp;
+ ifc2kaddr(ifp, ifc, &ka);
+ connected_free(&ifc);
+
+ /* Filter invalid addresses. */
+ if (bad_addr(ka.af, &ka.addr))
+ return (0);
+
+ debug_zebra_in("address delete %s/%u interface %s",
+ log_addr(ka.af, &ka.addr), ka.prefixlen, ifp->name);
+
+ /* notify ldpe about removed address */
+ main_imsg_compose_ldpe(IMSG_DELADDR, 0, &ka, sizeof(ka));
+
+ return (0);
+}
+
+static int
+ldp_zebra_read_route(ZAPI_CALLBACK_ARGS)
+{
+ struct zapi_route api;
+ struct zapi_nexthop *api_nh;
+ struct kroute kr;
+ int i, add = 0;
+
+ if (zapi_route_decode(zclient->ibuf, &api) < 0)
+ return -1;
+
+ /* we completely ignore srcdest routes for now. */
+ if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX))
+ return (0);
+
+ memset(&kr, 0, sizeof(kr));
+ kr.af = api.prefix.family;
+ switch (kr.af) {
+ case AF_INET:
+ kr.prefix.v4 = api.prefix.u.prefix4;
+ break;
+ case AF_INET6:
+ kr.prefix.v6 = api.prefix.u.prefix6;
+ break;
+ default:
+ break;
+ }
+ kr.prefixlen = api.prefix.prefixlen;
+ kr.route_type = api.type;
+ kr.route_instance = api.instance;
+
+ switch (api.type) {
+ case ZEBRA_ROUTE_CONNECT:
+ SET_FLAG(kr.flags, F_CONNECTED);
+ break;
+ case ZEBRA_ROUTE_BGP:
+ /* LDP should follow the IGP and ignore BGP routes */
+ return (0);
+ default:
+ break;
+ }
+
+ if (bad_addr(kr.af, &kr.prefix) ||
+ (kr.af == AF_INET6 && IN6_IS_SCOPE_EMBED(&kr.prefix.v6)))
+ return (0);
+
+ if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD)
+ add = 1;
+
+ if (api.nexthop_num == 0)
+ debug_zebra_in("route %s %s/%d (%s)", (add) ? "add" : "delete",
+ log_addr(kr.af, &kr.prefix), kr.prefixlen,
+ zebra_route_string(api.type));
+
+ /* loop through all the nexthops */
+ for (i = 0; i < api.nexthop_num; i++) {
+ api_nh = &api.nexthops[i];
+ switch (api_nh->type) {
+ case NEXTHOP_TYPE_IPV4:
+ if (kr.af != AF_INET)
+ continue;
+ kr.nexthop.v4 = api_nh->gate.ipv4;
+ kr.ifindex = 0;
+ break;
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ if (kr.af != AF_INET)
+ continue;
+ kr.nexthop.v4 = api_nh->gate.ipv4;
+ kr.ifindex = api_nh->ifindex;
+ break;
+ case NEXTHOP_TYPE_IPV6:
+ if (kr.af != AF_INET6)
+ continue;
+ kr.nexthop.v6 = api_nh->gate.ipv6;
+ kr.ifindex = 0;
+ break;
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ if (kr.af != AF_INET6)
+ continue;
+ kr.nexthop.v6 = api_nh->gate.ipv6;
+ kr.ifindex = api_nh->ifindex;
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ if (!CHECK_FLAG(kr.flags, F_CONNECTED))
+ continue;
+ break;
+ case NEXTHOP_TYPE_BLACKHOLE:
+ continue;
+ }
+
+ debug_zebra_in("route %s %s/%d nexthop %s ifindex %u (%s)",
+ (add) ? "add" : "delete", log_addr(kr.af, &kr.prefix),
+ kr.prefixlen, log_addr(kr.af, &kr.nexthop), kr.ifindex,
+ zebra_route_string(api.type));
+
+ if (add)
+ main_imsg_compose_lde(IMSG_NETWORK_ADD, 0, &kr, sizeof(kr));
+ }
+
+ main_imsg_compose_lde(IMSG_NETWORK_UPDATE, 0, &kr, sizeof(kr));
+
+ return (0);
+}
+
+/*
+ * Receive PW status update from Zebra and send it to LDE process.
+ */
+static int
+ldp_zebra_read_pw_status_update(ZAPI_CALLBACK_ARGS)
+{
+ struct zapi_pw_status zpw;
+
+ zebra_read_pw_status_update(cmd, zclient, length, vrf_id, &zpw);
+
+ debug_zebra_in("pseudowire %s status %s 0x%x", zpw.ifname,
+ (zpw.status == PW_FORWARDING) ? "up" : "down",
+ zpw.status);
+
+ main_imsg_compose_lde(IMSG_PW_UPDATE, 0, &zpw, sizeof(zpw));
+
+ return (0);
+}
+
+void ldp_zebra_regdereg_zebra_info(bool want_register)
+{
+ if (zebra_registered == want_register)
+ return;
+
+ log_debug("%s to receive default VRF information",
+ want_register ? "Register" : "De-register");
+
+ if (want_register) {
+ zclient_send_reg_requests(zclient, VRF_DEFAULT);
+ zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP,
+ ZEBRA_ROUTE_ALL, 0, VRF_DEFAULT);
+ zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient,
+ AFI_IP6, ZEBRA_ROUTE_ALL, 0,
+ VRF_DEFAULT);
+ } else {
+ zclient_send_dereg_requests(zclient, VRF_DEFAULT);
+ zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient,
+ AFI_IP, ZEBRA_ROUTE_ALL, 0,
+ VRF_DEFAULT);
+ zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient,
+ AFI_IP6, ZEBRA_ROUTE_ALL, 0,
+ VRF_DEFAULT);
+ }
+ zebra_registered = want_register;
+}
+
+static void
+ldp_zebra_connected(struct zclient *zclient)
+{
+ zebra_registered = false;
+
+ /* if MPLS was already enabled and we are re-connecting, register again
+ */
+ if (CHECK_FLAG(vty_conf->flags, F_LDPD_ENABLED))
+ ldp_zebra_regdereg_zebra_info(true);
+
+ ldp_zebra_opaque_register();
+
+ ldp_sync_zebra_init();
+}
+
+static void
+ldp_zebra_filter_update(struct access_list *access)
+{
+ struct ldp_access laccess;
+
+ if (access && access->name[0] != '\0') {
+ strlcpy(laccess.name, access->name, sizeof(laccess.name));
+ debug_evt("%s ACL update filter name %s", __func__, access->name);
+
+ main_imsg_compose_both(IMSG_FILTER_UPDATE, &laccess, sizeof(laccess));
+ }
+}
+
+extern struct zebra_privs_t ldpd_privs;
+
+static zclient_handler *const ldp_handlers[] = {
+ [ZEBRA_ROUTER_ID_UPDATE] = ldp_router_id_update,
+ [ZEBRA_INTERFACE_ADDRESS_ADD] = ldp_interface_address_add,
+ [ZEBRA_INTERFACE_ADDRESS_DELETE] = ldp_interface_address_delete,
+ [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = ldp_zebra_read_route,
+ [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = ldp_zebra_read_route,
+ [ZEBRA_PW_STATUS_UPDATE] = ldp_zebra_read_pw_status_update,
+ [ZEBRA_OPAQUE_MESSAGE] = ldp_zebra_opaque_msg_handler,
+};
+
+void ldp_zebra_init(struct event_loop *master)
+{
+ if_zapi_callbacks(ldp_ifp_create, ldp_ifp_up, ldp_ifp_down, ldp_ifp_destroy);
+
+ /* Set default values. */
+ zclient = zclient_new(master, &zclient_options_default, ldp_handlers,
+ array_size(ldp_handlers));
+ zclient_init(zclient, ZEBRA_ROUTE_LDP, 0, &ldpd_privs);
+
+ /* set callbacks */
+ zclient->zebra_connected = ldp_zebra_connected;
+
+ /* Access list initialize. */
+ access_list_add_hook(ldp_zebra_filter_update);
+ access_list_delete_hook(ldp_zebra_filter_update);
+}
+
+void
+ldp_zebra_destroy(void)
+{
+ ldp_zebra_opaque_unregister();
+ zclient_stop(zclient);
+ zclient_free(zclient);
+ zclient = NULL;
+
+ if (zclient_sync == NULL)
+ return;
+ zclient_stop(zclient_sync);
+ zclient_free(zclient_sync);
+ zclient_sync = NULL;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 02:25:21 +0000