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-rw-r--r--ldpd/l2vpn.c683
1 files changed, 683 insertions, 0 deletions
diff --git a/ldpd/l2vpn.c b/ldpd/l2vpn.c
new file mode 100644
index 0000000..ce038ac
--- /dev/null
+++ b/ldpd/l2vpn.c
@@ -0,0 +1,683 @@
+// SPDX-License-Identifier: ISC
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2015 Renato Westphal <renato@openbsd.org>
+ * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
+ * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
+ * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
+ */
+
+#include <zebra.h>
+
+#include "ldpd.h"
+#include "ldpe.h"
+#include "lde.h"
+#include "log.h"
+
+static void l2vpn_pw_fec(struct l2vpn_pw *, struct fec *);
+static __inline int l2vpn_compare(const struct l2vpn *, const struct l2vpn *);
+static __inline int l2vpn_if_compare(const struct l2vpn_if *, const struct l2vpn_if *);
+static __inline int l2vpn_pw_compare(const struct l2vpn_pw *, const struct l2vpn_pw *);
+
+RB_GENERATE(l2vpn_head, l2vpn, entry, l2vpn_compare)
+RB_GENERATE(l2vpn_if_head, l2vpn_if, entry, l2vpn_if_compare)
+RB_GENERATE(l2vpn_pw_head, l2vpn_pw, entry, l2vpn_pw_compare)
+
+static __inline int
+l2vpn_compare(const struct l2vpn *a, const struct l2vpn *b)
+{
+ return (strcmp(a->name, b->name));
+}
+
+struct l2vpn *
+l2vpn_new(const char *name)
+{
+ struct l2vpn *l2vpn;
+
+ if ((l2vpn = calloc(1, sizeof(*l2vpn))) == NULL)
+ fatal("l2vpn_new: calloc");
+
+ strlcpy(l2vpn->name, name, sizeof(l2vpn->name));
+
+ /* set default values */
+ l2vpn->mtu = DEFAULT_L2VPN_MTU;
+ l2vpn->pw_type = DEFAULT_PW_TYPE;
+
+ RB_INIT(l2vpn_if_head, &l2vpn->if_tree);
+ RB_INIT(l2vpn_pw_head, &l2vpn->pw_tree);
+ RB_INIT(l2vpn_pw_head, &l2vpn->pw_inactive_tree);
+
+ return (l2vpn);
+}
+
+struct l2vpn *
+l2vpn_find(struct ldpd_conf *xconf, const char *name)
+{
+ struct l2vpn l2vpn;
+ strlcpy(l2vpn.name, name, sizeof(l2vpn.name));
+ return (RB_FIND(l2vpn_head, &xconf->l2vpn_tree, &l2vpn));
+}
+
+void
+l2vpn_del(struct l2vpn *l2vpn)
+{
+ struct l2vpn_if *lif;
+ struct l2vpn_pw *pw;
+
+ while (!RB_EMPTY(l2vpn_if_head, &l2vpn->if_tree)) {
+ lif = RB_ROOT(l2vpn_if_head, &l2vpn->if_tree);
+
+ RB_REMOVE(l2vpn_if_head, &l2vpn->if_tree, lif);
+ free(lif);
+ }
+ while (!RB_EMPTY(l2vpn_pw_head, &l2vpn->pw_tree)) {
+ pw = RB_ROOT(l2vpn_pw_head, &l2vpn->pw_tree);
+
+ RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_tree, pw);
+ free(pw);
+ }
+ while (!RB_EMPTY(l2vpn_pw_head, &l2vpn->pw_inactive_tree)) {
+ pw = RB_ROOT(l2vpn_pw_head, &l2vpn->pw_inactive_tree);
+
+ RB_REMOVE(l2vpn_pw_head, &l2vpn->pw_inactive_tree, pw);
+ free(pw);
+ }
+
+ free(l2vpn);
+}
+
+void
+l2vpn_init(struct l2vpn *l2vpn)
+{
+ struct l2vpn_pw *pw;
+
+ RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree)
+ l2vpn_pw_init(pw);
+}
+
+void
+l2vpn_exit(struct l2vpn *l2vpn)
+{
+ struct l2vpn_pw *pw;
+
+ RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree)
+ l2vpn_pw_exit(pw);
+}
+
+static __inline int
+l2vpn_if_compare(const struct l2vpn_if *a, const struct l2vpn_if *b)
+{
+ return if_cmp_name_func(a->ifname, b->ifname);
+}
+
+struct l2vpn_if *
+l2vpn_if_new(struct l2vpn *l2vpn, const char *ifname)
+{
+ struct l2vpn_if *lif;
+
+ if ((lif = calloc(1, sizeof(*lif))) == NULL)
+ fatal("l2vpn_if_new: calloc");
+
+ lif->l2vpn = l2vpn;
+ strlcpy(lif->ifname, ifname, sizeof(lif->ifname));
+
+ return (lif);
+}
+
+struct l2vpn_if *
+l2vpn_if_find(struct l2vpn *l2vpn, const char *ifname)
+{
+ struct l2vpn_if lif;
+ strlcpy(lif.ifname, ifname, sizeof(lif.ifname));
+ return (RB_FIND(l2vpn_if_head, &l2vpn->if_tree, &lif));
+}
+
+void
+l2vpn_if_update_info(struct l2vpn_if *lif, struct kif *kif)
+{
+ lif->ifindex = kif->ifindex;
+ lif->operative = kif->operative;
+ memcpy(lif->mac, kif->mac, sizeof(lif->mac));
+}
+
+void
+l2vpn_if_update(struct l2vpn_if *lif)
+{
+ struct l2vpn *l2vpn = lif->l2vpn;
+ struct l2vpn_pw *pw;
+ struct map fec;
+ struct nbr *nbr;
+
+ if (lif->operative)
+ return;
+
+ RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) {
+ nbr = nbr_find_ldpid(pw->lsr_id.s_addr);
+ if (nbr == NULL)
+ continue;
+
+ memset(&fec, 0, sizeof(fec));
+ fec.type = MAP_TYPE_PWID;
+ fec.fec.pwid.type = l2vpn->pw_type;
+ fec.fec.pwid.group_id = 0;
+ SET_FLAG(fec.flags, F_MAP_PW_ID);
+ fec.fec.pwid.pwid = pw->pwid;
+
+ send_mac_withdrawal(nbr, &fec, lif->mac);
+ }
+}
+
+static __inline int
+l2vpn_pw_compare(const struct l2vpn_pw *a, const struct l2vpn_pw *b)
+{
+ return if_cmp_name_func(a->ifname, b->ifname);
+}
+
+struct l2vpn_pw *
+l2vpn_pw_new(struct l2vpn *l2vpn, const char *ifname)
+{
+ struct l2vpn_pw *pw;
+
+ if ((pw = calloc(1, sizeof(*pw))) == NULL)
+ fatal("l2vpn_pw_new: calloc");
+
+ pw->l2vpn = l2vpn;
+ strlcpy(pw->ifname, ifname, sizeof(pw->ifname));
+
+ return (pw);
+}
+
+struct l2vpn_pw *
+l2vpn_pw_find(struct l2vpn *l2vpn, const char *ifname)
+{
+ struct l2vpn_pw *pw;
+ struct l2vpn_pw s;
+
+ strlcpy(s.ifname, ifname, sizeof(s.ifname));
+ pw = RB_FIND(l2vpn_pw_head, &l2vpn->pw_tree, &s);
+ if (pw)
+ return (pw);
+ return (RB_FIND(l2vpn_pw_head, &l2vpn->pw_inactive_tree, &s));
+}
+
+struct l2vpn_pw *
+l2vpn_pw_find_active(struct l2vpn *l2vpn, const char *ifname)
+{
+ struct l2vpn_pw s;
+
+ strlcpy(s.ifname, ifname, sizeof(s.ifname));
+ return (RB_FIND(l2vpn_pw_head, &l2vpn->pw_tree, &s));
+}
+
+struct l2vpn_pw *
+l2vpn_pw_find_inactive(struct l2vpn *l2vpn, const char *ifname)
+{
+ struct l2vpn_pw s;
+
+ strlcpy(s.ifname, ifname, sizeof(s.ifname));
+ return (RB_FIND(l2vpn_pw_head, &l2vpn->pw_inactive_tree, &s));
+}
+
+void
+l2vpn_pw_update_info(struct l2vpn_pw *pw, struct kif *kif)
+{
+ pw->ifindex = kif->ifindex;
+}
+
+void
+l2vpn_pw_init(struct l2vpn_pw *pw)
+{
+ struct fec fec;
+ struct zapi_pw zpw;
+
+ l2vpn_pw_reset(pw);
+
+ pw2zpw(pw, &zpw);
+ lde_imsg_compose_parent(IMSG_KPW_ADD, 0, &zpw, sizeof(zpw));
+
+ l2vpn_pw_fec(pw, &fec);
+ lde_kernel_insert(&fec, AF_INET, (union ldpd_addr*)&pw->lsr_id, 0, 0,
+ 0, 0, (void *)pw);
+ lde_kernel_update(&fec);
+}
+
+void
+l2vpn_pw_exit(struct l2vpn_pw *pw)
+{
+ struct fec fec;
+ struct zapi_pw zpw;
+
+ l2vpn_pw_fec(pw, &fec);
+ lde_kernel_remove(&fec, AF_INET, (union ldpd_addr*)&pw->lsr_id, 0, 0, 0);
+ lde_kernel_update(&fec);
+
+ pw2zpw(pw, &zpw);
+ lde_imsg_compose_parent(IMSG_KPW_DELETE, 0, &zpw, sizeof(zpw));
+}
+
+static void
+l2vpn_pw_fec(struct l2vpn_pw *pw, struct fec *fec)
+{
+ memset(fec, 0, sizeof(*fec));
+ fec->type = FEC_TYPE_PWID;
+ fec->u.pwid.type = pw->l2vpn->pw_type;
+ fec->u.pwid.pwid = pw->pwid;
+ fec->u.pwid.lsr_id = pw->lsr_id;
+}
+
+void
+l2vpn_pw_reset(struct l2vpn_pw *pw)
+{
+ pw->remote_group = 0;
+ pw->remote_mtu = 0;
+ pw->local_status = PW_FORWARDING;
+ pw->remote_status = PW_NOT_FORWARDING;
+
+ if (CHECK_FLAG(pw->flags, F_PW_CWORD_CONF))
+ SET_FLAG(pw->flags, F_PW_CWORD);
+ else
+ UNSET_FLAG(pw->flags, F_PW_CWORD);
+
+ if (CHECK_FLAG(pw->flags, F_PW_STATUSTLV_CONF))
+ SET_FLAG(pw->flags, F_PW_STATUSTLV);
+ else
+ UNSET_FLAG(pw->flags, F_PW_STATUSTLV);
+
+ if (CHECK_FLAG(pw->flags, F_PW_STATUSTLV_CONF)) {
+ struct fec_node *fn;
+ struct fec fec;
+ l2vpn_pw_fec(pw, &fec);
+ fn = (struct fec_node *)fec_find(&ft, &fec);
+ if (fn)
+ pw->remote_status = fn->pw_remote_status;
+ }
+
+}
+
+int
+l2vpn_pw_ok(struct l2vpn_pw *pw, struct fec_nh *fnh)
+{
+ /* check for a remote label */
+ if (fnh->remote_label == NO_LABEL) {
+ log_warnx("%s: pseudowire %s: no remote label", __func__, pw->ifname);
+ pw->reason = F_PW_NO_REMOTE_LABEL;
+ return (0);
+ }
+
+ /* MTUs must match */
+ if (pw->l2vpn->mtu != pw->remote_mtu) {
+ log_warnx("%s: pseudowire %s: MTU mismatch detected", __func__,
+ pw->ifname);
+ pw->reason = F_PW_MTU_MISMATCH;
+ return (0);
+ }
+
+ /* check pw status if applicable */
+ if (CHECK_FLAG(pw->flags, F_PW_STATUSTLV) &&
+ pw->remote_status != PW_FORWARDING) {
+ log_warnx("%s: pseudowire %s: remote end is down", __func__, pw->ifname);
+ pw->reason = F_PW_REMOTE_NOT_FWD;
+ return (0);
+ }
+
+ pw->reason = F_PW_NO_ERR;
+ return (1);
+}
+
+int
+l2vpn_pw_negotiate(struct lde_nbr *ln, struct fec_node *fn, struct map *map)
+{
+ struct l2vpn_pw *pw;
+ struct status_tlv st;
+
+ /* NOTE: thanks martini & friends for all this mess */
+
+ pw = (struct l2vpn_pw *) fn->data;
+ if (pw == NULL)
+ /*
+ * pseudowire not configured, return and record
+ * the mapping later
+ */
+ return (0);
+
+ /* RFC4447 - Section 6.2: control word negotiation */
+ if (fec_find(&ln->sent_map, &fn->fec)) {
+ if (CHECK_FLAG(map->flags, F_MAP_PW_CWORD) &&
+ !CHECK_FLAG(pw->flags, F_PW_CWORD_CONF)) {
+ /* ignore the received label mapping */
+ return (1);
+ } else if (!CHECK_FLAG(map->flags, F_MAP_PW_CWORD) &&
+ CHECK_FLAG(pw->flags, F_PW_CWORD_CONF)) {
+ /* append a "Wrong C-bit" status code */
+ st.status_code = S_WRONG_CBIT;
+ st.msg_id = map->msg_id;
+ st.msg_type = htons(MSG_TYPE_LABELMAPPING);
+ lde_send_labelwithdraw(ln, fn, NULL, &st);
+
+ UNSET_FLAG(pw->flags, F_PW_CWORD);
+ lde_send_labelmapping(ln, fn, 1);
+ }
+ } else if (CHECK_FLAG(map->flags, F_MAP_PW_CWORD)) {
+ if (CHECK_FLAG(pw->flags, F_PW_CWORD_CONF))
+ SET_FLAG(pw->flags, F_PW_CWORD);
+ else
+ /* act as if no label mapping had been received */
+ return (1);
+ } else
+ UNSET_FLAG(pw->flags, F_PW_CWORD);
+
+ /* RFC4447 - Section 5.4.3: pseudowire status negotiation */
+ if (fec_find(&ln->recv_map, &fn->fec) == NULL &&
+ !CHECK_FLAG(map->flags, F_MAP_PW_STATUS))
+ UNSET_FLAG(pw->flags, F_PW_STATUSTLV);
+
+ return (0);
+}
+
+void
+l2vpn_send_pw_status(struct lde_nbr *ln, uint32_t status, struct fec *fec)
+{
+ struct notify_msg nm;
+
+ memset(&nm, 0, sizeof(nm));
+ nm.status_code = S_PW_STATUS;
+ nm.pw_status = status;
+ SET_FLAG(nm.flags, F_NOTIF_PW_STATUS);
+ lde_fec2map(fec, &nm.fec);
+ SET_FLAG(nm.flags, F_NOTIF_FEC);
+
+ lde_imsg_compose_ldpe(IMSG_NOTIFICATION_SEND, ln->peerid, 0, &nm, sizeof(nm));
+}
+
+void
+l2vpn_send_pw_status_wcard(struct lde_nbr *ln, uint32_t status,
+ uint16_t pw_type, uint32_t group_id)
+{
+ struct notify_msg nm;
+
+ memset(&nm, 0, sizeof(nm));
+ nm.status_code = S_PW_STATUS;
+ nm.pw_status = status;
+ SET_FLAG(nm.flags, F_NOTIF_PW_STATUS);
+ nm.fec.type = MAP_TYPE_PWID;
+ nm.fec.fec.pwid.type = pw_type;
+ nm.fec.fec.pwid.group_id = group_id;
+ SET_FLAG(nm.flags, F_NOTIF_FEC);
+
+ lde_imsg_compose_ldpe(IMSG_NOTIFICATION_SEND, ln->peerid, 0, &nm, sizeof(nm));
+}
+
+void
+l2vpn_recv_pw_status(struct lde_nbr *ln, struct notify_msg *nm)
+{
+ struct fec fec;
+ struct fec_node *fn;
+ struct fec_nh *fnh;
+ struct l2vpn_pw *pw;
+
+ if (nm->fec.type == MAP_TYPE_TYPED_WCARD ||
+ !CHECK_FLAG(nm->fec.flags, F_MAP_PW_ID)) {
+ l2vpn_recv_pw_status_wcard(ln, nm);
+ return;
+ }
+
+ lde_map2fec(&nm->fec, ln->id, &fec);
+ fn = (struct fec_node *)fec_find(&ft, &fec);
+ if (fn == NULL)
+ /* unknown fec */
+ return;
+
+ fn->pw_remote_status = nm->pw_status;
+
+ pw = (struct l2vpn_pw *) fn->data;
+ if (pw == NULL)
+ return;
+
+ fnh = fec_nh_find(fn, AF_INET, (union ldpd_addr *)&ln->id, 0, 0, 0);
+ if (fnh == NULL)
+ return;
+
+ /* remote status didn't change */
+ if (pw->remote_status == nm->pw_status)
+ return;
+ pw->remote_status = nm->pw_status;
+
+ if (l2vpn_pw_ok(pw, fnh))
+ lde_send_change_klabel(fn, fnh);
+ else
+ lde_send_delete_klabel(fn, fnh);
+}
+
+/* RFC4447 PWid group wildcard */
+void
+l2vpn_recv_pw_status_wcard(struct lde_nbr *ln, struct notify_msg *nm)
+{
+ struct fec *f;
+ struct fec_node *fn;
+ struct fec_nh *fnh;
+ struct l2vpn_pw *pw;
+ struct map *wcard = &nm->fec;
+
+ RB_FOREACH(f, fec_tree, &ft) {
+ fn = (struct fec_node *)f;
+ if (fn->fec.type != FEC_TYPE_PWID)
+ continue;
+
+ pw = (struct l2vpn_pw *) fn->data;
+ if (pw == NULL)
+ continue;
+
+ switch (wcard->type) {
+ case MAP_TYPE_TYPED_WCARD:
+ if (wcard->fec.twcard.u.pw_type != PW_TYPE_WILDCARD &&
+ wcard->fec.twcard.u.pw_type != fn->fec.u.pwid.type)
+ continue;
+ break;
+ case MAP_TYPE_PWID:
+ if (wcard->fec.pwid.type != fn->fec.u.pwid.type)
+ continue;
+ if (wcard->fec.pwid.group_id != pw->remote_group)
+ continue;
+ break;
+ }
+
+ fnh = fec_nh_find(fn, AF_INET, (union ldpd_addr *)&ln->id,
+ 0, 0, 0);
+ if (fnh == NULL)
+ continue;
+
+ /* remote status didn't change */
+ if (pw->remote_status == nm->pw_status)
+ continue;
+ pw->remote_status = nm->pw_status;
+
+ if (l2vpn_pw_ok(pw, fnh))
+ lde_send_change_klabel(fn, fnh);
+ else
+ lde_send_delete_klabel(fn, fnh);
+ }
+}
+
+int
+l2vpn_pw_status_update(struct zapi_pw_status *zpw)
+{
+ struct l2vpn *l2vpn;
+ struct l2vpn_pw *pw = NULL;
+ struct lde_nbr *ln;
+ struct fec fec;
+ uint32_t local_status;
+
+ RB_FOREACH(l2vpn, l2vpn_head, &ldeconf->l2vpn_tree) {
+ pw = l2vpn_pw_find(l2vpn, zpw->ifname);
+ if (pw)
+ break;
+ }
+ if (!pw) {
+ log_warnx("%s: pseudowire %s not found", __func__, zpw->ifname);
+ return (1);
+ }
+
+ if (zpw->status == PW_FORWARDING) {
+ local_status = PW_FORWARDING;
+ pw->reason = F_PW_NO_ERR;
+ } else {
+ local_status = zpw->status;
+ pw->reason = F_PW_LOCAL_NOT_FWD;
+ }
+
+ /* local status didn't change */
+ if (pw->local_status == local_status)
+ return (0);
+ pw->local_status = local_status;
+
+ /* notify remote peer about the status update */
+ ln = lde_nbr_find_by_lsrid(pw->lsr_id);
+ if (ln == NULL)
+ return (0);
+ l2vpn_pw_fec(pw, &fec);
+ if (CHECK_FLAG(pw->flags, F_PW_STATUSTLV))
+ l2vpn_send_pw_status(ln, local_status, &fec);
+ else {
+ struct fec_node *fn;
+ fn = (struct fec_node *)fec_find(&ft, &fec);
+ if (fn) {
+ if (pw->local_status == PW_FORWARDING)
+ lde_send_labelmapping(ln, fn, 1);
+ else
+ lde_send_labelwithdraw(ln, fn, NULL, NULL);
+ }
+ }
+
+ return (0);
+}
+
+void
+l2vpn_pw_ctl(pid_t pid)
+{
+ struct l2vpn *l2vpn;
+ struct l2vpn_pw *pw;
+ static struct ctl_pw pwctl;
+
+ RB_FOREACH(l2vpn, l2vpn_head, &ldeconf->l2vpn_tree)
+ RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree) {
+ memset(&pwctl, 0, sizeof(pwctl));
+ strlcpy(pwctl.l2vpn_name, pw->l2vpn->name,
+ sizeof(pwctl.l2vpn_name));
+ strlcpy(pwctl.ifname, pw->ifname,
+ sizeof(pwctl.ifname));
+ pwctl.pwid = pw->pwid;
+ pwctl.lsr_id = pw->lsr_id;
+ pwctl.status = PW_NOT_FORWARDING;
+ if (pw->enabled &&
+ pw->local_status == PW_FORWARDING &&
+ pw->remote_status == PW_FORWARDING)
+ pwctl.status = PW_FORWARDING;
+
+ lde_imsg_compose_ldpe(IMSG_CTL_SHOW_L2VPN_PW, 0,
+ pid, &pwctl, sizeof(pwctl));
+ }
+}
+
+void
+l2vpn_binding_ctl(pid_t pid)
+{
+ struct fec *f;
+ struct fec_node *fn;
+ struct lde_map *me;
+ struct l2vpn_pw *pw;
+ static struct ctl_pw pwctl;
+
+ RB_FOREACH(f, fec_tree, &ft) {
+ if (f->type != FEC_TYPE_PWID)
+ continue;
+
+ fn = (struct fec_node *)f;
+ if (fn->local_label == NO_LABEL &&
+ RB_EMPTY(lde_map_head, &fn->downstream))
+ continue;
+
+ memset(&pwctl, 0, sizeof(pwctl));
+ pwctl.type = f->u.pwid.type;
+ pwctl.pwid = f->u.pwid.pwid;
+ pwctl.lsr_id = f->u.pwid.lsr_id;
+
+ pw = (struct l2vpn_pw *) fn->data;
+ if (pw) {
+ pwctl.local_label = fn->local_label;
+ pwctl.local_gid = 0;
+ pwctl.local_ifmtu = pw->l2vpn->mtu;
+ pwctl.local_cword = CHECK_FLAG(pw->flags, F_PW_CWORD_CONF) ? 1 : 0;
+ pwctl.reason = pw->reason;
+ } else
+ pwctl.local_label = NO_LABEL;
+
+ RB_FOREACH(me, lde_map_head, &fn->downstream)
+ if (f->u.pwid.lsr_id.s_addr == me->nexthop->id.s_addr)
+ break;
+
+ if (me) {
+ pwctl.remote_label = me->map.label;
+ pwctl.remote_gid = me->map.fec.pwid.group_id;
+ if (CHECK_FLAG(me->map.flags, F_MAP_PW_IFMTU))
+ pwctl.remote_ifmtu = me->map.fec.pwid.ifmtu;
+ if (pw)
+ pwctl.remote_cword = CHECK_FLAG(pw->flags, F_PW_CWORD) ? 1 : 0;
+
+ lde_imsg_compose_ldpe(IMSG_CTL_SHOW_L2VPN_BINDING,
+ 0, pid, &pwctl, sizeof(pwctl));
+ } else if (pw) {
+ pwctl.remote_label = NO_LABEL;
+
+ lde_imsg_compose_ldpe(IMSG_CTL_SHOW_L2VPN_BINDING,
+ 0, pid, &pwctl, sizeof(pwctl));
+ }
+ }
+}
+
+/* ldpe */
+
+void
+ldpe_l2vpn_init(struct l2vpn *l2vpn)
+{
+ struct l2vpn_pw *pw;
+
+ RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree)
+ ldpe_l2vpn_pw_init(pw);
+}
+
+void
+ldpe_l2vpn_exit(struct l2vpn *l2vpn)
+{
+ struct l2vpn_pw *pw;
+
+ RB_FOREACH(pw, l2vpn_pw_head, &l2vpn->pw_tree)
+ ldpe_l2vpn_pw_exit(pw);
+}
+
+void
+ldpe_l2vpn_pw_init(struct l2vpn_pw *pw)
+{
+ struct tnbr *tnbr;
+
+ tnbr = tnbr_find(leconf, pw->af, &pw->addr);
+ if (tnbr == NULL) {
+ tnbr = tnbr_new(pw->af, &pw->addr);
+ tnbr_update(tnbr);
+ RB_INSERT(tnbr_head, &leconf->tnbr_tree, tnbr);
+ }
+
+ tnbr->pw_count++;
+}
+
+void
+ldpe_l2vpn_pw_exit(struct l2vpn_pw *pw)
+{
+ struct tnbr *tnbr;
+
+ tnbr = tnbr_find(leconf, pw->af, &pw->addr);
+ if (tnbr) {
+ tnbr->pw_count--;
+ tnbr_check(leconf, tnbr);
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-20 07:51:00 +0000