static void pim_msdp_peer_listen(struct pim_msdp_peer *mp);
static void pim_msdp_peer_cr_timer_setup(struct pim_msdp_peer *mp, bool start);
static void pim_msdp_peer_ka_timer_setup(struct pim_msdp_peer *mp, bool start);
-static void pim_msdp_peer_hold_timer_setup(struct pim_msdp_peer *mp, bool start);
+static void pim_msdp_peer_hold_timer_setup(struct pim_msdp_peer *mp,
+ bool start);
static void pim_msdp_peer_free(struct pim_msdp_peer *mp);
static void pim_msdp_enable(void);
static void pim_msdp_sa_adv_timer_setup(bool start);
-static void pim_msdp_sa_deref(struct pim_msdp_sa *sa, enum pim_msdp_sa_flags flags);
+static void pim_msdp_sa_deref(struct pim_msdp_sa *sa,
+ enum pim_msdp_sa_flags flags);
static int pim_msdp_mg_mbr_comp(const void *p1, const void *p2);
static void pim_msdp_mg_mbr_free(struct pim_msdp_mg_mbr *mbr);
-static void pim_msdp_mg_mbr_do_del(struct pim_msdp_mg *mg, struct pim_msdp_mg_mbr *mbr);
+static void pim_msdp_mg_mbr_do_del(struct pim_msdp_mg *mg,
+ struct pim_msdp_mg_mbr *mbr);
/************************ SA cache management ******************************/
-static void
-pim_msdp_sa_timer_expiry_log(struct pim_msdp_sa *sa, const char *timer_str)
+static void pim_msdp_sa_timer_expiry_log(struct pim_msdp_sa *sa,
+ const char *timer_str)
{
- zlog_debug("MSDP SA %s %s timer expired", sa->sg_str, timer_str);
+ zlog_debug("MSDP SA %s %s timer expired", sa->sg_str, timer_str);
}
/* RFC-3618:Sec-5.1 - global active source advertisement timer */
-static int
-pim_msdp_sa_adv_timer_cb(struct thread *t)
+static int pim_msdp_sa_adv_timer_cb(struct thread *t)
{
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA advertisment timer expired");
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA advertisment timer expired");
+ }
- pim_msdp_sa_adv_timer_setup(true /* start */);
- pim_msdp_pkt_sa_tx();
- return 0;
+ pim_msdp_sa_adv_timer_setup(true /* start */);
+ pim_msdp_pkt_sa_tx();
+ return 0;
}
-static void
-pim_msdp_sa_adv_timer_setup(bool start)
+static void pim_msdp_sa_adv_timer_setup(bool start)
{
- THREAD_OFF(msdp->sa_adv_timer);
- if (start) {
- thread_add_timer(msdp->master, pim_msdp_sa_adv_timer_cb, NULL,
- PIM_MSDP_SA_ADVERTISMENT_TIME, &msdp->sa_adv_timer);
- }
+ THREAD_OFF(msdp->sa_adv_timer);
+ if (start) {
+ thread_add_timer(msdp->master, pim_msdp_sa_adv_timer_cb, NULL,
+ PIM_MSDP_SA_ADVERTISMENT_TIME,
+ &msdp->sa_adv_timer);
+ }
}
/* RFC-3618:Sec-5.3 - SA cache state timer */
-static int
-pim_msdp_sa_state_timer_cb(struct thread *t)
+static int pim_msdp_sa_state_timer_cb(struct thread *t)
{
- struct pim_msdp_sa *sa;
+ struct pim_msdp_sa *sa;
- sa = THREAD_ARG(t);
+ sa = THREAD_ARG(t);
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_sa_timer_expiry_log(sa, "state");
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_sa_timer_expiry_log(sa, "state");
+ }
- pim_msdp_sa_deref(sa, PIM_MSDP_SAF_PEER);
- return 0;
+ pim_msdp_sa_deref(sa, PIM_MSDP_SAF_PEER);
+ return 0;
}
-static void
-pim_msdp_sa_state_timer_setup(struct pim_msdp_sa *sa, bool start)
+static void pim_msdp_sa_state_timer_setup(struct pim_msdp_sa *sa, bool start)
{
- THREAD_OFF(sa->sa_state_timer);
- if (start) {
- thread_add_timer(msdp->master, pim_msdp_sa_state_timer_cb, sa,
- PIM_MSDP_SA_HOLD_TIME, &sa->sa_state_timer);
- }
+ THREAD_OFF(sa->sa_state_timer);
+ if (start) {
+ thread_add_timer(msdp->master, pim_msdp_sa_state_timer_cb, sa,
+ PIM_MSDP_SA_HOLD_TIME, &sa->sa_state_timer);
+ }
}
-static void
-pim_msdp_sa_upstream_del(struct pim_msdp_sa *sa)
+static void pim_msdp_sa_upstream_del(struct pim_msdp_sa *sa)
{
- struct pim_upstream *up = sa->up;
- if (!up) {
- return;
- }
+ struct pim_upstream *up = sa->up;
+ if (!up) {
+ return;
+ }
- sa->up = NULL;
- if (PIM_UPSTREAM_FLAG_TEST_SRC_MSDP(up->flags)) {
- PIM_UPSTREAM_FLAG_UNSET_SRC_MSDP(up->flags);
- sa->flags |= PIM_MSDP_SAF_UP_DEL_IN_PROG;
- pim_upstream_del(up, __PRETTY_FUNCTION__);
- sa->flags &= ~PIM_MSDP_SAF_UP_DEL_IN_PROG;
- }
+ sa->up = NULL;
+ if (PIM_UPSTREAM_FLAG_TEST_SRC_MSDP(up->flags)) {
+ PIM_UPSTREAM_FLAG_UNSET_SRC_MSDP(up->flags);
+ sa->flags |= PIM_MSDP_SAF_UP_DEL_IN_PROG;
+ pim_upstream_del(up, __PRETTY_FUNCTION__);
+ sa->flags &= ~PIM_MSDP_SAF_UP_DEL_IN_PROG;
+ }
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s de-referenced SPT", sa->sg_str);
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s de-referenced SPT", sa->sg_str);
+ }
}
-static bool
-pim_msdp_sa_upstream_add_ok(struct pim_msdp_sa *sa, struct pim_upstream *xg_up)
+static bool pim_msdp_sa_upstream_add_ok(struct pim_msdp_sa *sa,
+ struct pim_upstream *xg_up)
{
- if (!(sa->flags & PIM_MSDP_SAF_PEER)) {
- /* SA should have been rxed from a peer */
- return false;
- }
- /* check if we are RP */
- if (!I_am_RP(sa->sg.grp)) {
- return false;
- }
+ if (!(sa->flags & PIM_MSDP_SAF_PEER)) {
+ /* SA should have been rxed from a peer */
+ return false;
+ }
+ /* check if we are RP */
+ if (!I_am_RP(sa->sg.grp)) {
+ return false;
+ }
- /* check if we have a (*, G) with a non-empty immediate OIL */
- if (!xg_up) {
- struct prefix_sg sg;
+ /* check if we have a (*, G) with a non-empty immediate OIL */
+ if (!xg_up) {
+ struct prefix_sg sg;
- memset(&sg, 0, sizeof(sg));
- sg.grp = sa->sg.grp;
+ memset(&sg, 0, sizeof(sg));
+ sg.grp = sa->sg.grp;
- xg_up = pim_upstream_find(&sg);
- }
- if (!xg_up || (xg_up->join_state != PIM_UPSTREAM_JOINED)) {
- /* join desired will be true for such (*, G) entries so we will
- * just look at join_state and let the PIM state machine do the rest of
- * the magic */
- return false;
- }
+ xg_up = pim_upstream_find(&sg);
+ }
+ if (!xg_up || (xg_up->join_state != PIM_UPSTREAM_JOINED)) {
+ /* join desired will be true for such (*, G) entries so we will
+ * just look at join_state and let the PIM state machine do the
+ * rest of
+ * the magic */
+ return false;
+ }
- return true;
+ return true;
}
/* Upstream add evaluation needs to happen everytime -
* (considering #4); but just in case an entry gets nuked without
* upstream state transition
* */
-static void
-pim_msdp_sa_upstream_update(struct pim_msdp_sa *sa,
- struct pim_upstream *xg_up, const char *ctx)
-{
- struct pim_upstream *up;
-
- if (!pim_msdp_sa_upstream_add_ok(sa, xg_up)) {
- pim_msdp_sa_upstream_del(sa);
- return;
- }
-
- if (sa->up) {
- /* nothing to do */
- return;
- }
-
- up = pim_upstream_find(&sa->sg);
- if (up && (PIM_UPSTREAM_FLAG_TEST_SRC_MSDP(up->flags))) {
- /* somehow we lost track of the upstream ptr? best log it */
- sa->up = up;
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s SPT reference missing", sa->sg_str);
- }
- return;
- }
-
- /* RFC3618: "RP triggers a (S, G) join event towards the data source
- * as if a JP message was rxed addressed to the RP itself." */
- up = pim_upstream_add(&sa->sg, NULL /* iif */,
- PIM_UPSTREAM_FLAG_MASK_SRC_MSDP,
- __PRETTY_FUNCTION__);
-
- sa->up = up;
- if (up) {
- /* update inherited oil */
- pim_upstream_inherited_olist(up);
- /* should we also start the kat in parallel? we will need it when the
- * SA ages out */
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s referenced SPT", sa->sg_str);
- }
- } else {
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s SPT reference failed", sa->sg_str);
- }
- }
+static void pim_msdp_sa_upstream_update(struct pim_msdp_sa *sa,
+ struct pim_upstream *xg_up,
+ const char *ctx)
+{
+ struct pim_upstream *up;
+
+ if (!pim_msdp_sa_upstream_add_ok(sa, xg_up)) {
+ pim_msdp_sa_upstream_del(sa);
+ return;
+ }
+
+ if (sa->up) {
+ /* nothing to do */
+ return;
+ }
+
+ up = pim_upstream_find(&sa->sg);
+ if (up && (PIM_UPSTREAM_FLAG_TEST_SRC_MSDP(up->flags))) {
+ /* somehow we lost track of the upstream ptr? best log it */
+ sa->up = up;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s SPT reference missing",
+ sa->sg_str);
+ }
+ return;
+ }
+
+ /* RFC3618: "RP triggers a (S, G) join event towards the data source
+ * as if a JP message was rxed addressed to the RP itself." */
+ up = pim_upstream_add(&sa->sg, NULL /* iif */,
+ PIM_UPSTREAM_FLAG_MASK_SRC_MSDP,
+ __PRETTY_FUNCTION__);
+
+ sa->up = up;
+ if (up) {
+ /* update inherited oil */
+ pim_upstream_inherited_olist(up);
+ /* should we also start the kat in parallel? we will need it
+ * when the
+ * SA ages out */
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s referenced SPT", sa->sg_str);
+ }
+ } else {
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s SPT reference failed",
+ sa->sg_str);
+ }
+ }
}
/* release all mem associated with a sa */
-static void
-pim_msdp_sa_free(struct pim_msdp_sa *sa)
+static void pim_msdp_sa_free(struct pim_msdp_sa *sa)
{
- XFREE(MTYPE_PIM_MSDP_SA, sa);
+ XFREE(MTYPE_PIM_MSDP_SA, sa);
}
-static struct pim_msdp_sa *
-pim_msdp_sa_new(struct prefix_sg *sg, struct in_addr rp)
+static struct pim_msdp_sa *pim_msdp_sa_new(struct prefix_sg *sg,
+ struct in_addr rp)
{
- struct pim_msdp_sa *sa;
+ struct pim_msdp_sa *sa;
- sa = XCALLOC(MTYPE_PIM_MSDP_SA, sizeof(*sa));
- if (!sa) {
- zlog_err("%s: PIM XCALLOC(%zu) failure",
- __PRETTY_FUNCTION__, sizeof(*sa));
- return NULL;
- }
+ sa = XCALLOC(MTYPE_PIM_MSDP_SA, sizeof(*sa));
+ if (!sa) {
+ zlog_err("%s: PIM XCALLOC(%zu) failure", __PRETTY_FUNCTION__,
+ sizeof(*sa));
+ return NULL;
+ }
- sa->sg = *sg;
- pim_str_sg_set(sg, sa->sg_str);
- sa->rp = rp;
- sa->uptime = pim_time_monotonic_sec();
+ sa->sg = *sg;
+ pim_str_sg_set(sg, sa->sg_str);
+ sa->rp = rp;
+ sa->uptime = pim_time_monotonic_sec();
- /* insert into misc tables for easy access */
- sa = hash_get(msdp->sa_hash, sa, hash_alloc_intern);
- if (!sa) {
- zlog_err("%s: PIM hash get failure", __PRETTY_FUNCTION__);
- pim_msdp_sa_free(sa);
- return NULL;
- }
- listnode_add_sort(msdp->sa_list, sa);
+ /* insert into misc tables for easy access */
+ sa = hash_get(msdp->sa_hash, sa, hash_alloc_intern);
+ if (!sa) {
+ zlog_err("%s: PIM hash get failure", __PRETTY_FUNCTION__);
+ pim_msdp_sa_free(sa);
+ return NULL;
+ }
+ listnode_add_sort(msdp->sa_list, sa);
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s created", sa->sg_str);
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s created", sa->sg_str);
+ }
- return sa;
+ return sa;
}
-static struct pim_msdp_sa *
-pim_msdp_sa_find(struct prefix_sg *sg)
+static struct pim_msdp_sa *pim_msdp_sa_find(struct prefix_sg *sg)
{
- struct pim_msdp_sa lookup;
+ struct pim_msdp_sa lookup;
- lookup.sg = *sg;
- return hash_lookup(msdp->sa_hash, &lookup);
+ lookup.sg = *sg;
+ return hash_lookup(msdp->sa_hash, &lookup);
}
-static struct pim_msdp_sa *
-pim_msdp_sa_add(struct prefix_sg *sg, struct in_addr rp)
+static struct pim_msdp_sa *pim_msdp_sa_add(struct prefix_sg *sg,
+ struct in_addr rp)
{
- struct pim_msdp_sa *sa;
+ struct pim_msdp_sa *sa;
- sa = pim_msdp_sa_find(sg);
- if (sa) {
- return sa;
- }
+ sa = pim_msdp_sa_find(sg);
+ if (sa) {
+ return sa;
+ }
- return pim_msdp_sa_new(sg, rp);
+ return pim_msdp_sa_new(sg, rp);
}
-static void
-pim_msdp_sa_del(struct pim_msdp_sa * sa)
+static void pim_msdp_sa_del(struct pim_msdp_sa *sa)
{
- /* this is somewhat redundant - still want to be careful not to leave
- * stale upstream references */
- pim_msdp_sa_upstream_del(sa);
+ /* this is somewhat redundant - still want to be careful not to leave
+ * stale upstream references */
+ pim_msdp_sa_upstream_del(sa);
- /* stop timers */
- pim_msdp_sa_state_timer_setup(sa, false /* start */);
+ /* stop timers */
+ pim_msdp_sa_state_timer_setup(sa, false /* start */);
- /* remove the entry from various tables */
- listnode_delete(msdp->sa_list, sa);
- hash_release(msdp->sa_hash, sa);
+ /* remove the entry from various tables */
+ listnode_delete(msdp->sa_list, sa);
+ hash_release(msdp->sa_hash, sa);
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s deleted", sa->sg_str);
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s deleted", sa->sg_str);
+ }
- /* free up any associated memory */
- pim_msdp_sa_free(sa);
+ /* free up any associated memory */
+ pim_msdp_sa_free(sa);
}
-static void
-pim_msdp_sa_peer_ip_set(struct pim_msdp_sa *sa, struct pim_msdp_peer *mp, struct in_addr rp)
+static void pim_msdp_sa_peer_ip_set(struct pim_msdp_sa *sa,
+ struct pim_msdp_peer *mp, struct in_addr rp)
{
- struct pim_msdp_peer *old_mp;
+ struct pim_msdp_peer *old_mp;
- /* optimize the "no change" case as it will happen
- * frequently/periodically */
- if (mp && (sa->peer.s_addr == mp->peer.s_addr)) {
- return;
- }
+ /* optimize the "no change" case as it will happen
+ * frequently/periodically */
+ if (mp && (sa->peer.s_addr == mp->peer.s_addr)) {
+ return;
+ }
- /* any time the peer ip changes also update the rp address */
- if (PIM_INADDR_ISNOT_ANY(sa->peer)) {
- old_mp = pim_msdp_peer_find(sa->peer);
- if (old_mp && old_mp->sa_cnt) {
- --old_mp->sa_cnt;
- }
- }
+ /* any time the peer ip changes also update the rp address */
+ if (PIM_INADDR_ISNOT_ANY(sa->peer)) {
+ old_mp = pim_msdp_peer_find(sa->peer);
+ if (old_mp && old_mp->sa_cnt) {
+ --old_mp->sa_cnt;
+ }
+ }
- if (mp) {
- ++mp->sa_cnt;
- sa->peer = mp->peer;
- } else {
- sa->peer.s_addr = PIM_NET_INADDR_ANY;
- }
- sa->rp = rp;
+ if (mp) {
+ ++mp->sa_cnt;
+ sa->peer = mp->peer;
+ } else {
+ sa->peer.s_addr = PIM_NET_INADDR_ANY;
+ }
+ sa->rp = rp;
}
/* When a local active-source is removed there is no way to withdraw the
* not be sent in supsequent SA updates. Peers will consequently timeout the
* SA.
* Similarly a "peer-added" SA is never explicitly deleted. It is simply
- * aged out overtime if not seen in the SA updates from the peers.
+ * aged out overtime if not seen in the SA updates from the peers.
* XXX: should we provide a knob to drop entries learnt from a peer when the
* peer goes down? */
-static void
-pim_msdp_sa_deref(struct pim_msdp_sa *sa, enum pim_msdp_sa_flags flags)
-{
- bool update_up = false;
-
- if ((sa->flags &PIM_MSDP_SAF_LOCAL)) {
- if (flags & PIM_MSDP_SAF_LOCAL) {
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s local reference removed", sa->sg_str);
- }
- if (msdp->local_cnt)
- --msdp->local_cnt;
- }
- }
-
- if ((sa->flags &PIM_MSDP_SAF_PEER)) {
- if (flags & PIM_MSDP_SAF_PEER) {
- struct in_addr rp;
-
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s peer reference removed", sa->sg_str);
- }
- pim_msdp_sa_state_timer_setup(sa, false /* start */);
- rp.s_addr = INADDR_ANY;
- pim_msdp_sa_peer_ip_set(sa, NULL /* mp */, rp);
- /* if peer ref was removed we need to remove the msdp reference on the
- * msdp entry */
- update_up = true;
- }
- }
-
- sa->flags &= ~flags;
- if (update_up) {
- pim_msdp_sa_upstream_update(sa, NULL /* xg_up */, "sa-deref");
- }
-
- if (!(sa->flags & PIM_MSDP_SAF_REF)) {
- pim_msdp_sa_del(sa);
- }
-}
-
-void
-pim_msdp_sa_ref(struct pim_msdp_peer *mp, struct prefix_sg *sg,
- struct in_addr rp)
-{
- struct pim_msdp_sa *sa;
-
- sa = pim_msdp_sa_add(sg, rp);
- if (!sa) {
- return;
- }
-
- /* reference it */
- if (mp) {
- if (!(sa->flags & PIM_MSDP_SAF_PEER)) {
- sa->flags |= PIM_MSDP_SAF_PEER;
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s added by peer", sa->sg_str);
- }
- }
- pim_msdp_sa_peer_ip_set(sa, mp, rp);
- /* start/re-start the state timer to prevent cache expiry */
- pim_msdp_sa_state_timer_setup(sa, true /* start */);
- /* We re-evaluate SA "SPT-trigger" everytime we hear abt it from a
- * peer. XXX: If this becomes too much of a periodic overhead we
- * can make it event based */
- pim_msdp_sa_upstream_update(sa, NULL /* xg_up */, "peer-ref");
- } else {
- if (!(sa->flags & PIM_MSDP_SAF_LOCAL)) {
- sa->flags |= PIM_MSDP_SAF_LOCAL;
- ++msdp->local_cnt;
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP SA %s added locally", sa->sg_str);
- }
- /* send an immediate SA update to peers */
- pim_msdp_pkt_sa_tx_one(sa);
- }
- sa->flags &= ~PIM_MSDP_SAF_STALE;
- }
+static void pim_msdp_sa_deref(struct pim_msdp_sa *sa,
+ enum pim_msdp_sa_flags flags)
+{
+ bool update_up = false;
+
+ if ((sa->flags & PIM_MSDP_SAF_LOCAL)) {
+ if (flags & PIM_MSDP_SAF_LOCAL) {
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s local reference removed",
+ sa->sg_str);
+ }
+ if (msdp->local_cnt)
+ --msdp->local_cnt;
+ }
+ }
+
+ if ((sa->flags & PIM_MSDP_SAF_PEER)) {
+ if (flags & PIM_MSDP_SAF_PEER) {
+ struct in_addr rp;
+
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s peer reference removed",
+ sa->sg_str);
+ }
+ pim_msdp_sa_state_timer_setup(sa, false /* start */);
+ rp.s_addr = INADDR_ANY;
+ pim_msdp_sa_peer_ip_set(sa, NULL /* mp */, rp);
+ /* if peer ref was removed we need to remove the msdp
+ * reference on the
+ * msdp entry */
+ update_up = true;
+ }
+ }
+
+ sa->flags &= ~flags;
+ if (update_up) {
+ pim_msdp_sa_upstream_update(sa, NULL /* xg_up */, "sa-deref");
+ }
+
+ if (!(sa->flags & PIM_MSDP_SAF_REF)) {
+ pim_msdp_sa_del(sa);
+ }
+}
+
+void pim_msdp_sa_ref(struct pim_msdp_peer *mp, struct prefix_sg *sg,
+ struct in_addr rp)
+{
+ struct pim_msdp_sa *sa;
+
+ sa = pim_msdp_sa_add(sg, rp);
+ if (!sa) {
+ return;
+ }
+
+ /* reference it */
+ if (mp) {
+ if (!(sa->flags & PIM_MSDP_SAF_PEER)) {
+ sa->flags |= PIM_MSDP_SAF_PEER;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s added by peer",
+ sa->sg_str);
+ }
+ }
+ pim_msdp_sa_peer_ip_set(sa, mp, rp);
+ /* start/re-start the state timer to prevent cache expiry */
+ pim_msdp_sa_state_timer_setup(sa, true /* start */);
+ /* We re-evaluate SA "SPT-trigger" everytime we hear abt it from
+ * a
+ * peer. XXX: If this becomes too much of a periodic overhead we
+ * can make it event based */
+ pim_msdp_sa_upstream_update(sa, NULL /* xg_up */, "peer-ref");
+ } else {
+ if (!(sa->flags & PIM_MSDP_SAF_LOCAL)) {
+ sa->flags |= PIM_MSDP_SAF_LOCAL;
+ ++msdp->local_cnt;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP SA %s added locally",
+ sa->sg_str);
+ }
+ /* send an immediate SA update to peers */
+ pim_msdp_pkt_sa_tx_one(sa);
+ }
+ sa->flags &= ~PIM_MSDP_SAF_STALE;
+ }
}
/* The following criteria must be met to originate an SA from the MSDP
* b. We rxed a pim register (null or data encapsulated) within the last
* (3 * (1.5 * register_suppression_timer))).
*/
-static bool
-pim_msdp_sa_local_add_ok(struct pim_upstream *up)
+static bool pim_msdp_sa_local_add_ok(struct pim_upstream *up)
{
- if (!(msdp->flags & PIM_MSDPF_ENABLE)) {
- return false;
- }
+ if (!(msdp->flags & PIM_MSDPF_ENABLE)) {
+ return false;
+ }
- if (!up->t_ka_timer) {
- /* stream is not active */
- return false;
- }
+ if (!up->t_ka_timer) {
+ /* stream is not active */
+ return false;
+ }
- if (!I_am_RP(up->sg.grp)) {
- /* we are not RP for the group */
- return false;
- }
+ if (!I_am_RP(up->sg.grp)) {
+ /* we are not RP for the group */
+ return false;
+ }
- /* we are the FHR-DR for this stream or we are RP and have seen registers
- * from a FHR for this source */
- if (PIM_UPSTREAM_FLAG_TEST_FHR(up->flags) || up->t_msdp_reg_timer) {
- return true;
- }
+ /* we are the FHR-DR for this stream or we are RP and have seen
+ * registers
+ * from a FHR for this source */
+ if (PIM_UPSTREAM_FLAG_TEST_FHR(up->flags) || up->t_msdp_reg_timer) {
+ return true;
+ }
- return false;
+ return false;
}
-static void
-pim_msdp_sa_local_add(struct prefix_sg *sg)
+static void pim_msdp_sa_local_add(struct prefix_sg *sg)
{
- struct in_addr rp;
- rp.s_addr = 0;
- pim_msdp_sa_ref(NULL /* mp */, sg, rp);
+ struct in_addr rp;
+ rp.s_addr = 0;
+ pim_msdp_sa_ref(NULL /* mp */, sg, rp);
}
-void
-pim_msdp_sa_local_del(struct prefix_sg *sg)
+void pim_msdp_sa_local_del(struct prefix_sg *sg)
{
- struct pim_msdp_sa *sa;
+ struct pim_msdp_sa *sa;
- sa = pim_msdp_sa_find(sg);
- if (sa) {
- pim_msdp_sa_deref(sa, PIM_MSDP_SAF_LOCAL);
- }
+ sa = pim_msdp_sa_find(sg);
+ if (sa) {
+ pim_msdp_sa_deref(sa, PIM_MSDP_SAF_LOCAL);
+ }
}
/* we need to be very cautious with this API as SA del too can trigger an
* upstream del and we will get stuck in a simple loop */
-static void
-pim_msdp_sa_local_del_on_up_del(struct prefix_sg *sg)
-{
- struct pim_msdp_sa *sa;
-
- sa = pim_msdp_sa_find(sg);
- if (sa) {
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP local sa %s del on up del", sa->sg_str);
- }
-
- /* if there is no local reference escape */
- if (!(sa->flags & PIM_MSDP_SAF_LOCAL)) {
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP local sa %s del; no local ref", sa->sg_str);
- }
- return;
- }
-
- if (sa->flags & PIM_MSDP_SAF_UP_DEL_IN_PROG) {
- /* MSDP is the one that triggered the upstream del. if this happens
- * we most certainly have a bug in the PIM upstream state machine. We
- * will not have a local reference unless the KAT is running. And if the
- * KAT is running there MUST be an additional source-stream reference to
- * the flow. Accounting for such cases requires lot of changes; perhaps
- * address this in the next release? - XXX */
- zlog_err("MSDP sa %s SPT teardown is causing the local entry to be removed", sa->sg_str);
- return;
- }
-
- /* we are dropping the sa on upstream del we should not have an
- * upstream reference */
- if (sa->up) {
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP local sa %s del; up non-NULL", sa->sg_str);
- }
- sa->up = NULL;
- }
- pim_msdp_sa_deref(sa, PIM_MSDP_SAF_LOCAL);
- }
+static void pim_msdp_sa_local_del_on_up_del(struct prefix_sg *sg)
+{
+ struct pim_msdp_sa *sa;
+
+ sa = pim_msdp_sa_find(sg);
+ if (sa) {
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP local sa %s del on up del",
+ sa->sg_str);
+ }
+
+ /* if there is no local reference escape */
+ if (!(sa->flags & PIM_MSDP_SAF_LOCAL)) {
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP local sa %s del; no local ref",
+ sa->sg_str);
+ }
+ return;
+ }
+
+ if (sa->flags & PIM_MSDP_SAF_UP_DEL_IN_PROG) {
+ /* MSDP is the one that triggered the upstream del. if
+ * this happens
+ * we most certainly have a bug in the PIM upstream
+ * state machine. We
+ * will not have a local reference unless the KAT is
+ * running. And if the
+ * KAT is running there MUST be an additional
+ * source-stream reference to
+ * the flow. Accounting for such cases requires lot of
+ * changes; perhaps
+ * address this in the next release? - XXX */
+ zlog_err(
+ "MSDP sa %s SPT teardown is causing the local entry to be removed",
+ sa->sg_str);
+ return;
+ }
+
+ /* we are dropping the sa on upstream del we should not have an
+ * upstream reference */
+ if (sa->up) {
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP local sa %s del; up non-NULL",
+ sa->sg_str);
+ }
+ sa->up = NULL;
+ }
+ pim_msdp_sa_deref(sa, PIM_MSDP_SAF_LOCAL);
+ }
}
/* Local SA qualification needs to be re-evaluated when -
* FHR is also the RP.
* 4. When msdp_reg timer is started or stopped
*/
-void
-pim_msdp_sa_local_update(struct pim_upstream *up)
+void pim_msdp_sa_local_update(struct pim_upstream *up)
{
- if (pim_msdp_sa_local_add_ok(up)) {
- pim_msdp_sa_local_add(&up->sg);
- } else {
- pim_msdp_sa_local_del(&up->sg);
- }
+ if (pim_msdp_sa_local_add_ok(up)) {
+ pim_msdp_sa_local_add(&up->sg);
+ } else {
+ pim_msdp_sa_local_del(&up->sg);
+ }
}
-static void
-pim_msdp_sa_local_setup(void)
+static void pim_msdp_sa_local_setup(void)
{
- struct pim_upstream *up;
- struct listnode *up_node;
+ struct pim_upstream *up;
+ struct listnode *up_node;
- for (ALL_LIST_ELEMENTS_RO(pim_upstream_list, up_node, up)) {
- pim_msdp_sa_local_update(up);
- }
+ for (ALL_LIST_ELEMENTS_RO(pim_upstream_list, up_node, up)) {
+ pim_msdp_sa_local_update(up);
+ }
}
/* whenever the RP changes we need to re-evaluate the "local" SA-cache */
/* XXX: needs to be tested */
-void
-pim_msdp_i_am_rp_changed(void)
-{
- struct listnode *sanode;
- struct listnode *nextnode;
- struct pim_msdp_sa *sa;
-
- if (!(msdp->flags & PIM_MSDPF_ENABLE)) {
- /* if the feature is not enabled do nothing */
- return;
- }
-
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP i_am_rp changed");
- }
-
- /* mark all local entries as stale */
- for (ALL_LIST_ELEMENTS_RO(msdp->sa_list, sanode, sa)) {
- if (sa->flags & PIM_MSDP_SAF_LOCAL) {
- sa->flags |= PIM_MSDP_SAF_STALE;
- }
- }
-
- /* re-setup local SA entries */
- pim_msdp_sa_local_setup();
-
- for (ALL_LIST_ELEMENTS(msdp->sa_list, sanode, nextnode, sa)) {
- /* purge stale SA entries */
- if (sa->flags & PIM_MSDP_SAF_STALE) {
- /* clear the stale flag; the entry may be kept even after
- * "local-deref" */
- sa->flags &= ~PIM_MSDP_SAF_STALE;
- /* sa_deref can end up freeing the sa; so don't access contents after */
- pim_msdp_sa_deref(sa, PIM_MSDP_SAF_LOCAL);
- } else {
- /* if the souce is still active check if we can influence SPT */
- pim_msdp_sa_upstream_update(sa, NULL /* xg_up */, "rp-change");
- }
- }
+void pim_msdp_i_am_rp_changed(void)
+{
+ struct listnode *sanode;
+ struct listnode *nextnode;
+ struct pim_msdp_sa *sa;
+
+ if (!(msdp->flags & PIM_MSDPF_ENABLE)) {
+ /* if the feature is not enabled do nothing */
+ return;
+ }
+
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP i_am_rp changed");
+ }
+
+ /* mark all local entries as stale */
+ for (ALL_LIST_ELEMENTS_RO(msdp->sa_list, sanode, sa)) {
+ if (sa->flags & PIM_MSDP_SAF_LOCAL) {
+ sa->flags |= PIM_MSDP_SAF_STALE;
+ }
+ }
+
+ /* re-setup local SA entries */
+ pim_msdp_sa_local_setup();
+
+ for (ALL_LIST_ELEMENTS(msdp->sa_list, sanode, nextnode, sa)) {
+ /* purge stale SA entries */
+ if (sa->flags & PIM_MSDP_SAF_STALE) {
+ /* clear the stale flag; the entry may be kept even
+ * after
+ * "local-deref" */
+ sa->flags &= ~PIM_MSDP_SAF_STALE;
+ /* sa_deref can end up freeing the sa; so don't access
+ * contents after */
+ pim_msdp_sa_deref(sa, PIM_MSDP_SAF_LOCAL);
+ } else {
+ /* if the souce is still active check if we can
+ * influence SPT */
+ pim_msdp_sa_upstream_update(sa, NULL /* xg_up */,
+ "rp-change");
+ }
+ }
}
/* We track the join state of (*, G) entries. If G has sources in the SA-cache
* we need to setup or teardown SPT when the JoinDesired status changes for
* (*, G) */
-void
-pim_msdp_up_join_state_changed(struct pim_upstream *xg_up)
-{
- struct listnode *sanode;
- struct pim_msdp_sa *sa;
-
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP join state changed for %s", xg_up->sg_str);
- }
-
- /* If this is not really an XG entry just move on */
- if ((xg_up->sg.src.s_addr != INADDR_ANY) ||
- (xg_up->sg.grp.s_addr == INADDR_ANY)) {
- return;
- }
-
- /* XXX: Need to maintain SAs per-group to avoid all this unnecessary
- * walking */
- for (ALL_LIST_ELEMENTS_RO(msdp->sa_list, sanode, sa)) {
- if (sa->sg.grp.s_addr != xg_up->sg.grp.s_addr) {
- continue;
- }
- pim_msdp_sa_upstream_update(sa, xg_up, "up-jp-change");
- }
-}
-
-static void
-pim_msdp_up_xg_del(struct prefix_sg *sg)
-{
- struct listnode *sanode;
- struct pim_msdp_sa *sa;
-
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP %s del", pim_str_sg_dump(sg));
- }
-
- /* If this is not really an XG entry just move on */
- if ((sg->src.s_addr != INADDR_ANY) ||
- (sg->grp.s_addr == INADDR_ANY)) {
- return;
- }
-
- /* XXX: Need to maintain SAs per-group to avoid all this unnecessary
- * walking */
- for (ALL_LIST_ELEMENTS_RO(msdp->sa_list, sanode, sa)) {
- if (sa->sg.grp.s_addr != sg->grp.s_addr) {
- continue;
- }
- pim_msdp_sa_upstream_update(sa, NULL /* xg */, "up-jp-change");
- }
-}
-
-void
-pim_msdp_up_del(struct prefix_sg *sg)
-{
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP up %s del", pim_str_sg_dump(sg));
- }
- if (sg->src.s_addr == INADDR_ANY) {
- pim_msdp_up_xg_del(sg);
- } else {
- pim_msdp_sa_local_del_on_up_del(sg);
- }
+void pim_msdp_up_join_state_changed(struct pim_upstream *xg_up)
+{
+ struct listnode *sanode;
+ struct pim_msdp_sa *sa;
+
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP join state changed for %s", xg_up->sg_str);
+ }
+
+ /* If this is not really an XG entry just move on */
+ if ((xg_up->sg.src.s_addr != INADDR_ANY)
+ || (xg_up->sg.grp.s_addr == INADDR_ANY)) {
+ return;
+ }
+
+ /* XXX: Need to maintain SAs per-group to avoid all this unnecessary
+ * walking */
+ for (ALL_LIST_ELEMENTS_RO(msdp->sa_list, sanode, sa)) {
+ if (sa->sg.grp.s_addr != xg_up->sg.grp.s_addr) {
+ continue;
+ }
+ pim_msdp_sa_upstream_update(sa, xg_up, "up-jp-change");
+ }
+}
+
+static void pim_msdp_up_xg_del(struct prefix_sg *sg)
+{
+ struct listnode *sanode;
+ struct pim_msdp_sa *sa;
+
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP %s del", pim_str_sg_dump(sg));
+ }
+
+ /* If this is not really an XG entry just move on */
+ if ((sg->src.s_addr != INADDR_ANY) || (sg->grp.s_addr == INADDR_ANY)) {
+ return;
+ }
+
+ /* XXX: Need to maintain SAs per-group to avoid all this unnecessary
+ * walking */
+ for (ALL_LIST_ELEMENTS_RO(msdp->sa_list, sanode, sa)) {
+ if (sa->sg.grp.s_addr != sg->grp.s_addr) {
+ continue;
+ }
+ pim_msdp_sa_upstream_update(sa, NULL /* xg */, "up-jp-change");
+ }
+}
+
+void pim_msdp_up_del(struct prefix_sg *sg)
+{
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP up %s del", pim_str_sg_dump(sg));
+ }
+ if (sg->src.s_addr == INADDR_ANY) {
+ pim_msdp_up_xg_del(sg);
+ } else {
+ pim_msdp_sa_local_del_on_up_del(sg);
+ }
}
/* sa hash and peer list helpers */
-static unsigned int
-pim_msdp_sa_hash_key_make(void *p)
+static unsigned int pim_msdp_sa_hash_key_make(void *p)
{
- struct pim_msdp_sa *sa = p;
+ struct pim_msdp_sa *sa = p;
- return (jhash_2words(sa->sg.src.s_addr, sa->sg.grp.s_addr, 0));
+ return (jhash_2words(sa->sg.src.s_addr, sa->sg.grp.s_addr, 0));
}
-static int
-pim_msdp_sa_hash_eq(const void *p1, const void *p2)
+static int pim_msdp_sa_hash_eq(const void *p1, const void *p2)
{
- const struct pim_msdp_sa *sa1 = p1;
- const struct pim_msdp_sa *sa2 = p2;
+ const struct pim_msdp_sa *sa1 = p1;
+ const struct pim_msdp_sa *sa2 = p2;
- return ((sa1->sg.src.s_addr == sa2->sg.src.s_addr) &&
- (sa1->sg.grp.s_addr == sa2->sg.grp.s_addr));
+ return ((sa1->sg.src.s_addr == sa2->sg.src.s_addr)
+ && (sa1->sg.grp.s_addr == sa2->sg.grp.s_addr));
}
-static int
-pim_msdp_sa_comp(const void *p1, const void *p2)
+static int pim_msdp_sa_comp(const void *p1, const void *p2)
{
- const struct pim_msdp_sa *sa1 = p1;
- const struct pim_msdp_sa *sa2 = p2;
+ const struct pim_msdp_sa *sa1 = p1;
+ const struct pim_msdp_sa *sa2 = p2;
- if (ntohl(sa1->sg.grp.s_addr) < ntohl(sa2->sg.grp.s_addr))
- return -1;
+ if (ntohl(sa1->sg.grp.s_addr) < ntohl(sa2->sg.grp.s_addr))
+ return -1;
- if (ntohl(sa1->sg.grp.s_addr) > ntohl(sa2->sg.grp.s_addr))
- return 1;
+ if (ntohl(sa1->sg.grp.s_addr) > ntohl(sa2->sg.grp.s_addr))
+ return 1;
- if (ntohl(sa1->sg.src.s_addr) < ntohl(sa2->sg.src.s_addr))
- return -1;
+ if (ntohl(sa1->sg.src.s_addr) < ntohl(sa2->sg.src.s_addr))
+ return -1;
- if (ntohl(sa1->sg.src.s_addr) > ntohl(sa2->sg.src.s_addr))
- return 1;
+ if (ntohl(sa1->sg.src.s_addr) > ntohl(sa2->sg.src.s_addr))
+ return 1;
- return 0;
+ return 0;
}
/* RFC-3618:Sec-10.1.3 - Peer-RPF forwarding */
/* XXX: this can use a bit of refining and extensions */
-bool
-pim_msdp_peer_rpf_check(struct pim_msdp_peer *mp, struct in_addr rp)
+bool pim_msdp_peer_rpf_check(struct pim_msdp_peer *mp, struct in_addr rp)
{
- if (mp->peer.s_addr == rp.s_addr) {
- return true;
- }
+ if (mp->peer.s_addr == rp.s_addr) {
+ return true;
+ }
- return false;
+ return false;
}
-
+
/************************ Peer session management **************************/
-char *
-pim_msdp_state_dump(enum pim_msdp_peer_state state, char *buf, int buf_size)
-{
- switch (state) {
- case PIM_MSDP_DISABLED:
- snprintf(buf, buf_size, "%s", "disabled");
- break;
- case PIM_MSDP_INACTIVE:
- snprintf(buf, buf_size, "%s", "inactive");
- break;
- case PIM_MSDP_LISTEN:
- snprintf(buf, buf_size, "%s", "listen");
- break;
- case PIM_MSDP_CONNECTING:
- snprintf(buf, buf_size, "%s", "connecting");
- break;
- case PIM_MSDP_ESTABLISHED:
- snprintf(buf, buf_size, "%s", "established");
- break;
- default:
- snprintf(buf, buf_size, "unk-%d", state);
- }
- return buf;
-}
-
-char *
-pim_msdp_peer_key_dump(struct pim_msdp_peer *mp, char *buf, int buf_size, bool long_format)
-{
- char peer_str[INET_ADDRSTRLEN];
- char local_str[INET_ADDRSTRLEN];
-
- pim_inet4_dump("<peer?>", mp->peer, peer_str, sizeof(peer_str));
- if (long_format) {
- pim_inet4_dump("<local?>", mp->local, local_str, sizeof(local_str));
- snprintf(buf, buf_size, "MSDP peer %s local %s mg %s",
- peer_str, local_str, mp->mesh_group_name);
- } else {
- snprintf(buf, buf_size, "MSDP peer %s", peer_str);
- }
-
- return buf;
-}
-
-static void
-pim_msdp_peer_state_chg_log(struct pim_msdp_peer *mp)
-{
- char state_str[PIM_MSDP_STATE_STRLEN];
-
- pim_msdp_state_dump(mp->state, state_str, sizeof(state_str));
- zlog_debug("MSDP peer %s state chg to %s", mp->key_str, state_str);
+char *pim_msdp_state_dump(enum pim_msdp_peer_state state, char *buf,
+ int buf_size)
+{
+ switch (state) {
+ case PIM_MSDP_DISABLED:
+ snprintf(buf, buf_size, "%s", "disabled");
+ break;
+ case PIM_MSDP_INACTIVE:
+ snprintf(buf, buf_size, "%s", "inactive");
+ break;
+ case PIM_MSDP_LISTEN:
+ snprintf(buf, buf_size, "%s", "listen");
+ break;
+ case PIM_MSDP_CONNECTING:
+ snprintf(buf, buf_size, "%s", "connecting");
+ break;
+ case PIM_MSDP_ESTABLISHED:
+ snprintf(buf, buf_size, "%s", "established");
+ break;
+ default:
+ snprintf(buf, buf_size, "unk-%d", state);
+ }
+ return buf;
+}
+
+char *pim_msdp_peer_key_dump(struct pim_msdp_peer *mp, char *buf, int buf_size,
+ bool long_format)
+{
+ char peer_str[INET_ADDRSTRLEN];
+ char local_str[INET_ADDRSTRLEN];
+
+
pim_inet4_dump("<peer?>", mp->peer, peer_str, sizeof(peer_str));
+ if (long_format) {
+ pim_inet4_dump("<local?>", mp->local, local_str,
+ sizeof(local_str));
+ snprintf(buf, buf_size, "MSDP peer %s local %s mg %s", peer_str,
+ local_str, mp->mesh_group_name);
+ } else {
+ snprintf(buf, buf_size, "MSDP peer %s", peer_str);
+ }
+
+ return buf;
+}
+
+static void pim_msdp_peer_state_chg_log(struct pim_msdp_peer *mp)
+{
+ char state_str[PIM_MSDP_STATE_STRLEN];
+
+ pim_msdp_state_dump(mp->state, state_str, sizeof(state_str));
+ zlog_debug("MSDP peer %s state chg to %s", mp->key_str, state_str);
}
/* MSDP Connection State Machine actions (defined in RFC-3618:Sec-11.2) */
/* 11.2.A2: active peer - start connect retry timer; when the timer fires
* a tcp connection will be made */
-static void
-pim_msdp_peer_connect(struct pim_msdp_peer *mp)
+static void pim_msdp_peer_connect(struct pim_msdp_peer *mp)
{
- mp->state = PIM_MSDP_CONNECTING;
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_state_chg_log(mp);
- }
+ mp->state = PIM_MSDP_CONNECTING;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_state_chg_log(mp);
+ }
- pim_msdp_peer_cr_timer_setup(mp, true /* start */);
+ pim_msdp_peer_cr_timer_setup(mp, true /* start */);
}
/* 11.2.A3: passive peer - just listen for connections */
-static void
-pim_msdp_peer_listen(struct pim_msdp_peer *mp)
+static void pim_msdp_peer_listen(struct pim_msdp_peer *mp)
{
- mp->state = PIM_MSDP_LISTEN;
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_state_chg_log(mp);
- }
+ mp->state = PIM_MSDP_LISTEN;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_state_chg_log(mp);
+ }
- /* this is interntionally asymmetric i.e. we set up listen-socket when the
- * first listening peer is configured; but don't bother tearing it down when
- * all the peers go down */
- pim_msdp_sock_listen();
+ /* this is interntionally asymmetric i.e. we set up listen-socket when
+ * the
+ * first listening peer is configured; but don't bother tearing it down
+ * when
+ * all the peers go down */
+ pim_msdp_sock_listen();
}
/* 11.2.A4 and 11.2.A5: transition active or passive peer to
* established state */
-void
-pim_msdp_peer_established(struct pim_msdp_peer *mp)
+void pim_msdp_peer_established(struct pim_msdp_peer *mp)
{
- if (mp->state != PIM_MSDP_ESTABLISHED) {
- ++mp->est_flaps;
- }
+ if (mp->state != PIM_MSDP_ESTABLISHED) {
+ ++mp->est_flaps;
+ }
- mp->state = PIM_MSDP_ESTABLISHED;
- mp->uptime = pim_time_monotonic_sec();
+ mp->state = PIM_MSDP_ESTABLISHED;
+ mp->uptime = pim_time_monotonic_sec();
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_state_chg_log(mp);
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_state_chg_log(mp);
+ }
- /* stop retry timer on active peers */
- pim_msdp_peer_cr_timer_setup(mp, false /* start */);
+ /* stop retry timer on active peers */
+ pim_msdp_peer_cr_timer_setup(mp, false /* start */);
- /* send KA; start KA and hold timers */
- pim_msdp_pkt_ka_tx(mp);
- pim_msdp_peer_ka_timer_setup(mp, true /* start */);
- pim_msdp_peer_hold_timer_setup(mp, true /* start */);
+ /* send KA; start KA and hold timers */
+ pim_msdp_pkt_ka_tx(mp);
+ pim_msdp_peer_ka_timer_setup(mp, true /* start */);
+ pim_msdp_peer_hold_timer_setup(mp, true /* start */);
- pim_msdp_pkt_sa_tx_to_one_peer(mp);
+ pim_msdp_pkt_sa_tx_to_one_peer(mp);
- PIM_MSDP_PEER_WRITE_ON(mp);
- PIM_MSDP_PEER_READ_ON(mp);
+ PIM_MSDP_PEER_WRITE_ON(mp);
+ PIM_MSDP_PEER_READ_ON(mp);
}
/* 11.2.A6, 11.2.A7 and 11.2.A8: shutdown the peer tcp connection */
-void
-pim_msdp_peer_stop_tcp_conn(struct pim_msdp_peer *mp, bool chg_state)
-{
- if (chg_state) {
- if (mp->state == PIM_MSDP_ESTABLISHED) {
- ++mp->est_flaps;
- }
- mp->state = PIM_MSDP_INACTIVE;
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_state_chg_log(mp);
- }
- }
-
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP peer %s pim_msdp_peer_stop_tcp_conn", mp->key_str);
- }
- /* stop read and write threads */
- PIM_MSDP_PEER_READ_OFF(mp);
- PIM_MSDP_PEER_WRITE_OFF(mp);
-
- /* reset buffers */
- mp->packet_size = 0;
- if (mp->ibuf)
- stream_reset(mp->ibuf);
- if (mp->obuf)
- stream_fifo_clean(mp->obuf);
-
- /* stop all peer timers */
- pim_msdp_peer_ka_timer_setup(mp, false /* start */);
- pim_msdp_peer_cr_timer_setup(mp, false /* start */);
- pim_msdp_peer_hold_timer_setup(mp, false /* start */);
-
- /* close connection */
- if (mp->fd >= 0) {
- close(mp->fd);
- mp->fd = -1;
- }
+void pim_msdp_peer_stop_tcp_conn(struct pim_msdp_peer *mp, bool chg_state)
+{
+ if (chg_state) {
+ if (mp->state == PIM_MSDP_ESTABLISHED) {
+ ++mp->est_flaps;
+ }
+ mp->state = PIM_MSDP_INACTIVE;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_state_chg_log(mp);
+ }
+ }
+
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP peer %s pim_msdp_peer_stop_tcp_conn",
+ mp->key_str);
+ }
+ /* stop read and write threads */
+ PIM_MSDP_PEER_READ_OFF(mp);
+ PIM_MSDP_PEER_WRITE_OFF(mp);
+
+ /* reset buffers */
+ mp->packet_size = 0;
+ if (mp->ibuf)
+ stream_reset(mp->ibuf);
+ if (mp->obuf)
+ stream_fifo_clean(mp->obuf);
+
+ /* stop all peer timers */
+ pim_msdp_peer_ka_timer_setup(mp, false /* start */);
+ pim_msdp_peer_cr_timer_setup(mp, false /* start */);
+ pim_msdp_peer_hold_timer_setup(mp, false /* start */);
+
+ /* close connection */
+ if (mp->fd >= 0) {
+ close(mp->fd);
+ mp->fd = -1;
+ }
}
/* RFC-3618:Sec-5.6 - stop the peer tcp connection and startover */
-void
-pim_msdp_peer_reset_tcp_conn(struct pim_msdp_peer *mp, const char *rc_str)
+void pim_msdp_peer_reset_tcp_conn(struct pim_msdp_peer *mp, const char *rc_str)
{
- if (PIM_DEBUG_EVENTS) {
- zlog_debug("MSDP peer %s tcp reset %s", mp->key_str, rc_str);
- snprintf(mp->last_reset, sizeof(mp->last_reset), "%s", rc_str);
- }
+ if (PIM_DEBUG_EVENTS) {
+ zlog_debug("MSDP peer %s tcp reset %s", mp->key_str, rc_str);
+ snprintf(mp->last_reset, sizeof(mp->last_reset), "%s", rc_str);
+ }
- /* close the connection and transition to listening or connecting */
- pim_msdp_peer_stop_tcp_conn(mp, true /* chg_state */);
- if (PIM_MSDP_PEER_IS_LISTENER(mp)) {
- pim_msdp_peer_listen(mp);
- } else {
- pim_msdp_peer_connect(mp);
- }
+ /* close the connection and transition to listening or connecting */
+ pim_msdp_peer_stop_tcp_conn(mp, true /* chg_state */);
+ if (PIM_MSDP_PEER_IS_LISTENER(mp)) {
+ pim_msdp_peer_listen(mp);
+ } else {
+ pim_msdp_peer_connect(mp);
+ }
}
-static void
-pim_msdp_peer_timer_expiry_log(struct pim_msdp_peer *mp, const char *timer_str)
+static void pim_msdp_peer_timer_expiry_log(struct pim_msdp_peer *mp,
+ const char *timer_str)
{
- zlog_debug("MSDP peer %s %s timer expired", mp->key_str, timer_str);
+ zlog_debug("MSDP peer %s %s timer expired", mp->key_str, timer_str);
}
/* RFC-3618:Sec-5.4 - peer hold timer */
-static int
-pim_msdp_peer_hold_timer_cb(struct thread *t)
+static int pim_msdp_peer_hold_timer_cb(struct thread *t)
{
- struct pim_msdp_peer *mp;
+ struct pim_msdp_peer *mp;
- mp = THREAD_ARG(t);
+ mp = THREAD_ARG(t);
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_timer_expiry_log(mp, "hold");
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_timer_expiry_log(mp, "hold");
+ }
- if (mp->state != PIM_MSDP_ESTABLISHED) {
- return 0;
- }
+ if (mp->state != PIM_MSDP_ESTABLISHED) {
+ return 0;
+ }
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_state_chg_log(mp);
- }
- pim_msdp_peer_reset_tcp_conn(mp, "ht-expired");
- return 0;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_state_chg_log(mp);
+ }
+ pim_msdp_peer_reset_tcp_conn(mp, "ht-expired");
+ return 0;
}
-static void
-pim_msdp_peer_hold_timer_setup(struct pim_msdp_peer *mp, bool start)
+static void pim_msdp_peer_hold_timer_setup(struct pim_msdp_peer *mp, bool start)
{
- THREAD_OFF(mp->hold_timer);
- if (start) {
- thread_add_timer(msdp->master, pim_msdp_peer_hold_timer_cb, mp,
- PIM_MSDP_PEER_HOLD_TIME, &mp->hold_timer);
- }
+ THREAD_OFF(mp->hold_timer);
+ if (start) {
+ thread_add_timer(msdp->master, pim_msdp_peer_hold_timer_cb, mp,
+ PIM_MSDP_PEER_HOLD_TIME, &mp->hold_timer);
+ }
}
/* RFC-3618:Sec-5.5 - peer keepalive timer */
-static int
-pim_msdp_peer_ka_timer_cb(struct thread *t)
+static int pim_msdp_peer_ka_timer_cb(struct thread *t)
{
- struct pim_msdp_peer *mp;
+ struct pim_msdp_peer *mp;
- mp = THREAD_ARG(t);
+ mp = THREAD_ARG(t);
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_timer_expiry_log(mp, "ka");
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_timer_expiry_log(mp, "ka");
+ }
- pim_msdp_pkt_ka_tx(mp);
- pim_msdp_peer_ka_timer_setup(mp, true /* start */);
- return 0;
+ pim_msdp_pkt_ka_tx(mp);
+ pim_msdp_peer_ka_timer_setup(mp, true /* start */);
+ return 0;
}
-static void
-pim_msdp_peer_ka_timer_setup(struct pim_msdp_peer *mp, bool start)
+static void pim_msdp_peer_ka_timer_setup(struct pim_msdp_peer *mp, bool start)
{
- THREAD_OFF(mp->ka_timer);
- if (start) {
- thread_add_timer(msdp->master, pim_msdp_peer_ka_timer_cb, mp,
- PIM_MSDP_PEER_KA_TIME, &mp->ka_timer);
- }
+ THREAD_OFF(mp->ka_timer);
+ if (start) {
+ thread_add_timer(msdp->master, pim_msdp_peer_ka_timer_cb, mp,
+ PIM_MSDP_PEER_KA_TIME, &mp->ka_timer);
+ }
}
-static void
-pim_msdp_peer_active_connect(struct pim_msdp_peer *mp)
+static void pim_msdp_peer_active_connect(struct pim_msdp_peer *mp)
{
- int rc;
- ++mp->conn_attempts;
- rc = pim_msdp_sock_connect(mp);
+ int rc;
+ ++mp->conn_attempts;
+ rc = pim_msdp_sock_connect(mp);
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP peer %s pim_msdp_peer_active_connect: %d", mp->key_str, rc);
- }
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP peer %s pim_msdp_peer_active_connect: %d",
+ mp->key_str, rc);
+ }
- switch (rc) {
- case connect_error:
- case -1:
- /* connect failed restart the connect-retry timer */
- pim_msdp_peer_cr_timer_setup(mp, true /* start */);
- break;
+ switch (rc) {
+ case connect_error:
+ case -1:
+ /* connect failed restart the connect-retry timer */
+ pim_msdp_peer_cr_timer_setup(mp, true /* start */);
+ break;
- case connect_success:
- /* connect was sucessful move to established */
- pim_msdp_peer_established(mp);
- break;
+ case connect_success:
+ /* connect was sucessful move to established */
+ pim_msdp_peer_established(mp);
+ break;
- case connect_in_progress:
- /* for NB content we need to wait till sock is readable or
- * writeable */
- PIM_MSDP_PEER_WRITE_ON(mp);
- PIM_MSDP_PEER_READ_ON(mp);
- /* also restart connect-retry timer to reset the socket if connect is
- * not sucessful */
- pim_msdp_peer_cr_timer_setup(mp, true /* start */);
- break;
- }
+ case connect_in_progress:
+ /* for NB content we need to wait till sock is readable or
+ * writeable */
+ PIM_MSDP_PEER_WRITE_ON(mp);
+ PIM_MSDP_PEER_READ_ON(mp);
+ /* also restart connect-retry timer to reset the socket if
+ * connect is
+ * not sucessful */
+ pim_msdp_peer_cr_timer_setup(mp, true /* start */);
+ break;
+ }
}
/* RFC-3618:Sec-5.6 - connection retry on active peer */
-static int
-pim_msdp_peer_cr_timer_cb(struct thread *t)
+static int pim_msdp_peer_cr_timer_cb(struct thread *t)
{
- struct pim_msdp_peer *mp;
+ struct pim_msdp_peer *mp;
- mp = THREAD_ARG(t);
+ mp = THREAD_ARG(t);
- if (PIM_DEBUG_MSDP_EVENTS) {
- pim_msdp_peer_timer_expiry_log(mp, "connect-retry");
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ pim_msdp_peer_timer_expiry_log(mp, "connect-retry");
+ }
- if (mp->state != PIM_MSDP_CONNECTING || PIM_MSDP_PEER_IS_LISTENER(mp)) {
- return 0;
- }
+ if (mp->state != PIM_MSDP_CONNECTING || PIM_MSDP_PEER_IS_LISTENER(mp)) {
+ return 0;
+ }
- pim_msdp_peer_active_connect(mp);
- return 0;
+ pim_msdp_peer_active_connect(mp);
+ return 0;
}
-static void
-pim_msdp_peer_cr_timer_setup(struct pim_msdp_peer *mp, bool start)
+static void pim_msdp_peer_cr_timer_setup(struct pim_msdp_peer *mp, bool start)
{
- THREAD_OFF(mp->cr_timer);
- if (start) {
- thread_add_timer(msdp->master, pim_msdp_peer_cr_timer_cb, mp,
- PIM_MSDP_PEER_CONNECT_RETRY_TIME, &mp->cr_timer);
- }
+ THREAD_OFF(mp->cr_timer);
+ if (start) {
+ thread_add_timer(msdp->master, pim_msdp_peer_cr_timer_cb, mp,
+ PIM_MSDP_PEER_CONNECT_RETRY_TIME,
+ &mp->cr_timer);
+ }
}
/* if a valid packet is rxed from the peer we can restart hold timer */
-void
-pim_msdp_peer_pkt_rxed(struct pim_msdp_peer *mp)
+void pim_msdp_peer_pkt_rxed(struct pim_msdp_peer *mp)
{
- if (mp->state == PIM_MSDP_ESTABLISHED) {
- pim_msdp_peer_hold_timer_setup(mp, true /* start */);
- }
+ if (mp->state == PIM_MSDP_ESTABLISHED) {
+ pim_msdp_peer_hold_timer_setup(mp, true /* start */);
+ }
}
/* if a valid packet is txed to the peer we can restart ka timer and avoid
* unnecessary ka noise in the network */
-void
-pim_msdp_peer_pkt_txed(struct pim_msdp_peer *mp)
+void pim_msdp_peer_pkt_txed(struct pim_msdp_peer *mp)
{
- if (mp->state == PIM_MSDP_ESTABLISHED) {
- pim_msdp_peer_ka_timer_setup(mp, true /* start */);
- if (PIM_DEBUG_MSDP_INTERNAL) {
- zlog_debug("MSDP ka timer restart on pkt tx to %s", mp->key_str);
- }
- }
+ if (mp->state == PIM_MSDP_ESTABLISHED) {
+ pim_msdp_peer_ka_timer_setup(mp, true /* start */);
+ if (PIM_DEBUG_MSDP_INTERNAL) {
+ zlog_debug("MSDP ka timer restart on pkt tx to %s",
+ mp->key_str);
+ }
+ }
}
static void pim_msdp_addr2su(union sockunion *su, struct in_addr addr)
{
- sockunion_init(su);
- su->sin.sin_addr = addr;
- su->sin.sin_family = AF_INET;
+ sockunion_init(su);
+ su->sin.sin_addr = addr;
+ su->sin.sin_family = AF_INET;
#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
- su->sin.sin_len = sizeof(struct sockaddr_in);
+ su->sin.sin_len = sizeof(struct sockaddr_in);
#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
}
/* 11.2.A1: create a new peer and transition state to listen or connecting */
-static enum pim_msdp_err
-pim_msdp_peer_new(struct in_addr peer_addr, struct in_addr local_addr,
- const char *mesh_group_name, struct pim_msdp_peer **mp_p)
-{
- struct pim_msdp_peer *mp;
-
- pim_msdp_enable();
-
- mp = XCALLOC(MTYPE_PIM_MSDP_PEER, sizeof(*mp));
- if (!mp) {
- zlog_err("%s: PIM XCALLOC(%zu) failure",
- __PRETTY_FUNCTION__, sizeof(*mp));
- return PIM_MSDP_ERR_OOM;
- }
-
- mp->peer = peer_addr;
- pim_inet4_dump("<peer?>", mp->peer, mp->key_str, sizeof(mp->key_str));
- pim_msdp_addr2su(&mp->su_peer, mp->peer);
- mp->local = local_addr;
- /* XXX: originator_id setting needs to move to the mesh group */
- msdp->originator_id = local_addr;
- pim_msdp_addr2su(&mp->su_local, mp->local);
- mp->mesh_group_name = XSTRDUP(MTYPE_PIM_MSDP_MG_NAME, mesh_group_name);
- mp->state = PIM_MSDP_INACTIVE;
- mp->fd = -1;
- strcpy(mp->last_reset, "-");
- /* higher IP address is listener */
- if (ntohl(mp->local.s_addr) > ntohl(mp->peer.s_addr)) {
- mp->flags |= PIM_MSDP_PEERF_LISTENER;
- }
-
- /* setup packet buffers */
- mp->ibuf = stream_new(PIM_MSDP_MAX_PACKET_SIZE);
- mp->obuf = stream_fifo_new();
-
- /* insert into misc tables for easy access */
- mp = hash_get(msdp->peer_hash, mp, hash_alloc_intern);
- listnode_add_sort(msdp->peer_list, mp);
-
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP peer %s created", mp->key_str);
-
- pim_msdp_peer_state_chg_log(mp);
- }
-
- /* fireup the connect state machine */
- if (PIM_MSDP_PEER_IS_LISTENER(mp)) {
- pim_msdp_peer_listen(mp);
- } else {
- pim_msdp_peer_connect(mp);
- }
- if (mp_p) {
- *mp_p = mp;
- }
- return PIM_MSDP_ERR_NONE;
-}
-
-struct pim_msdp_peer *
-pim_msdp_peer_find(struct in_addr peer_addr)
-{
- struct pim_msdp_peer lookup;
-
- lookup.peer = peer_addr;
- return hash_lookup(msdp->peer_hash, &lookup);
+static enum pim_msdp_err pim_msdp_peer_new(struct in_addr peer_addr,
+ struct in_addr local_addr,
+ const char *mesh_group_name,
+ struct pim_msdp_peer **mp_p)
+{
+ struct pim_msdp_peer *mp;
+
+ pim_msdp_enable();
+
+ mp = XCALLOC(MTYPE_PIM_MSDP_PEER, sizeof(*mp));
+ if (!mp) {
+ zlog_err("%s: PIM XCALLOC(%zu) failure", __PRETTY_FUNCTION__,
+ sizeof(*mp));
+ return PIM_MSDP_ERR_OOM;
+ }
+
+ mp->peer = peer_addr;
+ pim_inet4_dump("<peer?>", mp->peer, mp->key_str, sizeof(mp->key_str));
+ pim_msdp_addr2su(&mp->su_peer, mp->peer);
+ mp->local = local_addr;
+ /* XXX: originator_id setting needs to move to the mesh group */
+ msdp->originator_id = local_addr;
+ pim_msdp_addr2su(&mp->su_local, mp->local);
+ mp->mesh_group_name = XSTRDUP(MTYPE_PIM_MSDP_MG_NAME, mesh_group_name);
+ mp->state = PIM_MSDP_INACTIVE;
+ mp->fd = -1;
+ strcpy(mp->last_reset, "-");
+ /* higher IP address is listener */
+ if (ntohl(mp->local.s_addr) > ntohl(mp->peer.s_addr)) {
+ mp->flags |= PIM_MSDP_PEERF_LISTENER;
+ }
+
+ /* setup packet buffers */
+ mp->ibuf = stream_new(PIM_MSDP_MAX_PACKET_SIZE);
+ mp->obuf = stream_fifo_new();
+
+ /* insert into misc tables for easy access */
+ mp = hash_get(msdp->peer_hash, mp, hash_alloc_intern);
+ listnode_add_sort(msdp->peer_list, mp);
+
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP peer %s created", mp->key_str);
+
+ pim_msdp_peer_state_chg_log(mp);
+ }
+
+ /* fireup the connect state machine */
+ if (PIM_MSDP_PEER_IS_LISTENER(mp)) {
+ pim_msdp_peer_listen(mp);
+ } else {
+ pim_msdp_peer_connect(mp);
+ }
+ if (mp_p) {
+ *mp_p = mp;
+ }
+ return PIM_MSDP_ERR_NONE;
+}
+
+struct pim_msdp_peer *pim_msdp_peer_find(struct in_addr peer_addr)
+{
+ struct pim_msdp_peer lookup;
+
+ lookup.peer = peer_addr;
+ return hash_lookup(msdp->peer_hash, &lookup);
}
/* add peer configuration if it doesn't already exist */
-enum pim_msdp_err
-pim_msdp_peer_add(struct in_addr peer_addr, struct in_addr local_addr,
- const char *mesh_group_name, struct pim_msdp_peer **mp_p)
+enum pim_msdp_err pim_msdp_peer_add(struct in_addr peer_addr,
+ struct in_addr local_addr,
+ const char *mesh_group_name,
+ struct pim_msdp_peer **mp_p)
{
- struct pim_msdp_peer *mp;
+ struct pim_msdp_peer *mp;
- if (mp_p) {
- *mp_p = NULL;
- }
+ if (mp_p) {
+ *mp_p = NULL;
+ }
- if (peer_addr.s_addr == local_addr.s_addr) {
- /* skip session setup if config is invalid */
- if (PIM_DEBUG_MSDP_EVENTS) {
- char peer_str[INET_ADDRSTRLEN];
+ if (peer_addr.s_addr == local_addr.s_addr) {
+ /* skip session setup if config is invalid */
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ char peer_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<peer?>", peer_addr, peer_str, sizeof(peer_str));
- zlog_debug("%s add skipped as DIP=SIP", peer_str);
- }
- return PIM_MSDP_ERR_SIP_EQ_DIP;
- }
+ pim_inet4_dump("<peer?>", peer_addr, peer_str,
+ sizeof(peer_str));
+ zlog_debug("%s add skipped as DIP=SIP", peer_str);
+ }
+ return PIM_MSDP_ERR_SIP_EQ_DIP;
+ }
- mp = pim_msdp_peer_find(peer_addr);
- if (mp) {
- if (mp_p) {
- *mp_p = mp;
- }
- return PIM_MSDP_ERR_PEER_EXISTS;
- }
+ mp = pim_msdp_peer_find(peer_addr);
+ if (mp) {
+ if (mp_p) {
+ *mp_p = mp;
+ }
+ return PIM_MSDP_ERR_PEER_EXISTS;
+ }
- return pim_msdp_peer_new(peer_addr, local_addr, mesh_group_name, mp_p);
+ return pim_msdp_peer_new(peer_addr, local_addr, mesh_group_name, mp_p);
}
/* release all mem associated with a peer */
-static void
-pim_msdp_peer_free(struct pim_msdp_peer *mp)
+static void pim_msdp_peer_free(struct pim_msdp_peer *mp)
{
- if (mp->ibuf) {
- stream_free(mp->ibuf);
- }
+ if (mp->ibuf) {
+ stream_free(mp->ibuf);
+ }
- if (mp->obuf) {
- stream_fifo_free(mp->obuf);
- }
+ if (mp->obuf) {
+ stream_fifo_free(mp->obuf);
+ }
- if (mp->mesh_group_name) {
- XFREE(MTYPE_PIM_MSDP_MG_NAME, mp->mesh_group_name);
- }
- XFREE(MTYPE_PIM_MSDP_PEER, mp);
+ if (mp->mesh_group_name) {
+ XFREE(MTYPE_PIM_MSDP_MG_NAME, mp->mesh_group_name);
+ }
+ XFREE(MTYPE_PIM_MSDP_PEER, mp);
}
/* delete the peer config */
-static enum pim_msdp_err
-pim_msdp_peer_do_del(struct pim_msdp_peer *mp)
+static enum pim_msdp_err pim_msdp_peer_do_del(struct pim_msdp_peer *mp)
{
- /* stop the tcp connection and shutdown all timers */
- pim_msdp_peer_stop_tcp_conn(mp, true /* chg_state */);
+ /* stop the tcp connection and shutdown all timers */
+ pim_msdp_peer_stop_tcp_conn(mp, true /* chg_state */);
- /* remove the session from various tables */
- listnode_delete(msdp->peer_list, mp);
- hash_release(msdp->peer_hash, mp);
+ /* remove the session from various tables */
+ listnode_delete(msdp->peer_list, mp);
+ hash_release(msdp->peer_hash, mp);
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP peer %s deleted", mp->key_str);
- }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP peer %s deleted", mp->key_str);
+ }
- /* free up any associated memory */
- pim_msdp_peer_free(mp);
+ /* free up any associated memory */
+ pim_msdp_peer_free(mp);
- return PIM_MSDP_ERR_NONE;
+ return PIM_MSDP_ERR_NONE;
}
-enum pim_msdp_err
-pim_msdp_peer_del(struct in_addr peer_addr)
+enum pim_msdp_err pim_msdp_peer_del(struct in_addr peer_addr)
{
- struct pim_msdp_peer *mp;
+ struct pim_msdp_peer *mp;
- mp = pim_msdp_peer_find(peer_addr);
- if (!mp) {
- return PIM_MSDP_ERR_NO_PEER;
- }
+ mp = pim_msdp_peer_find(peer_addr);
+ if (!mp) {
+ return PIM_MSDP_ERR_NO_PEER;
+ }
- return pim_msdp_peer_do_del(mp);
+ return pim_msdp_peer_do_del(mp);
}
/* peer hash and peer list helpers */
-static unsigned int
-pim_msdp_peer_hash_key_make(void *p)
+static unsigned int pim_msdp_peer_hash_key_make(void *p)
{
- struct pim_msdp_peer *mp = p;
- return (jhash_1word(mp->peer.s_addr, 0));
+ struct pim_msdp_peer *mp = p;
+ return (jhash_1word(mp->peer.s_addr, 0));
}
-static int
-pim_msdp_peer_hash_eq(const void *p1, const void *p2)
+static int pim_msdp_peer_hash_eq(const void *p1, const void *p2)
{
- const struct pim_msdp_peer *mp1 = p1;
- const struct pim_msdp_peer *mp2 = p2;
+ const struct pim_msdp_peer *mp1 = p1;
+ const struct pim_msdp_peer *mp2 = p2;
- return (mp1->peer.s_addr == mp2->peer.s_addr);
+ return (mp1->peer.s_addr == mp2->peer.s_addr);
}
-static int
-pim_msdp_peer_comp(const void *p1, const void *p2)
+static int pim_msdp_peer_comp(const void *p1, const void *p2)
{
- const struct pim_msdp_peer *mp1 = p1;
- const struct pim_msdp_peer *mp2 = p2;
+ const struct pim_msdp_peer *mp1 = p1;
+ const struct pim_msdp_peer *mp2 = p2;
- if (ntohl(mp1->peer.s_addr) < ntohl(mp2->peer.s_addr))
- return -1;
+ if (ntohl(mp1->peer.s_addr) < ntohl(mp2->peer.s_addr))
+ return -1;
- if (ntohl(mp1->peer.s_addr) > ntohl(mp2->peer.s_addr))
- return 1;
+ if (ntohl(mp1->peer.s_addr) > ntohl(mp2->peer.s_addr))
+ return 1;
- return 0;
+ return 0;
}
/************************** Mesh group management **************************/
-static void
-pim_msdp_mg_free(struct pim_msdp_mg *mg)
+static void pim_msdp_mg_free(struct pim_msdp_mg *mg)
{
- /* If the mesh-group has valid member or src_ip don't delete it */
- if (!mg || mg->mbr_cnt || (mg->src_ip.s_addr != INADDR_ANY)) {
- return;
- }
+ /* If the mesh-group has valid member or src_ip don't delete it */
+ if (!mg || mg->mbr_cnt || (mg->src_ip.s_addr != INADDR_ANY)) {
+ return;
+ }
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP mesh-group %s deleted", mg->mesh_group_name);
- }
- if (mg->mesh_group_name)
- XFREE(MTYPE_PIM_MSDP_MG_NAME, mg->mesh_group_name);
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP mesh-group %s deleted", mg->mesh_group_name);
+ }
+ if (mg->mesh_group_name)
+ XFREE(MTYPE_PIM_MSDP_MG_NAME, mg->mesh_group_name);
- if (mg->mbr_list)
- list_free(mg->mbr_list);
+ if (mg->mbr_list)
+ list_free(mg->mbr_list);
- XFREE(MTYPE_PIM_MSDP_MG, mg);
- msdp->mg = NULL;
+ XFREE(MTYPE_PIM_MSDP_MG, mg);
+ msdp->mg = NULL;
}
-static struct pim_msdp_mg *
-pim_msdp_mg_new(const char *mesh_group_name)
+static struct pim_msdp_mg *pim_msdp_mg_new(const char *mesh_group_name)
{
- struct pim_msdp_mg *mg;
+ struct pim_msdp_mg *mg;
- mg = XCALLOC(MTYPE_PIM_MSDP_MG, sizeof(*mg));
- if (!mg) {
- zlog_err("%s: PIM XCALLOC(%zu) failure",
- __PRETTY_FUNCTION__, sizeof(*mg));
- return NULL;
- }
+ mg = XCALLOC(MTYPE_PIM_MSDP_MG, sizeof(*mg));
+ if (!mg) {
+ zlog_err("%s: PIM XCALLOC(%zu) failure", __PRETTY_FUNCTION__,
+ sizeof(*mg));
+ return NULL;
+ }
- mg->mesh_group_name = XSTRDUP(MTYPE_PIM_MSDP_MG_NAME, mesh_group_name);
- mg->mbr_list = list_new();
- mg->mbr_list->del = (void (*)(void *))pim_msdp_mg_mbr_free;
- mg->mbr_list->cmp = (int (*)(void *, void *))pim_msdp_mg_mbr_comp;
+ mg->mesh_group_name = XSTRDUP(MTYPE_PIM_MSDP_MG_NAME, mesh_group_name);
+ mg->mbr_list = list_new();
+ mg->mbr_list->del = (void (*)(void *))pim_msdp_mg_mbr_free;
+ mg->mbr_list->cmp = (int (*)(void *, void *))pim_msdp_mg_mbr_comp;
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP mesh-group %s created", mg->mesh_group_name);
- }
- return mg;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP mesh-group %s created", mg->mesh_group_name);
+ }
+ return mg;
}
-enum pim_msdp_err
-pim_msdp_mg_del(const char *mesh_group_name)
+enum pim_msdp_err pim_msdp_mg_del(const char *mesh_group_name)
{
- struct pim_msdp_mg *mg = msdp->mg;
- struct pim_msdp_mg_mbr *mbr;
+ struct pim_msdp_mg *mg = msdp->mg;
+ struct pim_msdp_mg_mbr *mbr;
- if (!mg || strcmp(mg->mesh_group_name, mesh_group_name)) {
- return PIM_MSDP_ERR_NO_MG;
- }
+ if (!mg || strcmp(mg->mesh_group_name, mesh_group_name)) {
+ return PIM_MSDP_ERR_NO_MG;
+ }
- /* delete all the mesh-group members */
- while (!list_isempty(mg->mbr_list)) {
- mbr = listnode_head(mg->mbr_list);
- pim_msdp_mg_mbr_do_del(mg, mbr);
- }
+ /* delete all the mesh-group members */
+ while (!list_isempty(mg->mbr_list)) {
+ mbr = listnode_head(mg->mbr_list);
+ pim_msdp_mg_mbr_do_del(mg, mbr);
+ }
- /* clear src ip */
- mg->src_ip.s_addr = INADDR_ANY;
+ /* clear src ip */
+ mg->src_ip.s_addr = INADDR_ANY;
- /* free up the mesh-group */
- pim_msdp_mg_free(mg);
- return PIM_MSDP_ERR_NONE;
+ /* free up the mesh-group */
+ pim_msdp_mg_free(mg);
+ return PIM_MSDP_ERR_NONE;
}
-static enum pim_msdp_err
-pim_msdp_mg_add(const char *mesh_group_name)
+static enum pim_msdp_err pim_msdp_mg_add(const char *mesh_group_name)
{
- if (msdp->mg) {
- if (!strcmp(msdp->mg->mesh_group_name, mesh_group_name)) {
- return PIM_MSDP_ERR_NONE;
- }
- /* currently only one mesh-group can exist at a time */
- return PIM_MSDP_ERR_MAX_MESH_GROUPS;
- }
+ if (msdp->mg) {
+ if (!strcmp(msdp->mg->mesh_group_name, mesh_group_name)) {
+ return PIM_MSDP_ERR_NONE;
+ }
+ /* currently only one mesh-group can exist at a time */
+ return PIM_MSDP_ERR_MAX_MESH_GROUPS;
+ }
- msdp->mg = pim_msdp_mg_new(mesh_group_name);
- if (!msdp->mg) {
- return PIM_MSDP_ERR_OOM;
- }
+ msdp->mg = pim_msdp_mg_new(mesh_group_name);
+ if (!msdp->mg) {
+ return PIM_MSDP_ERR_OOM;
+ }
- return PIM_MSDP_ERR_NONE;
+ return PIM_MSDP_ERR_NONE;
}
-static int
-pim_msdp_mg_mbr_comp(const void *p1, const void *p2)
+static int pim_msdp_mg_mbr_comp(const void *p1, const void *p2)
{
- const struct pim_msdp_mg_mbr *mbr1 = p1;
- const struct pim_msdp_mg_mbr *mbr2 = p2;
+ const struct pim_msdp_mg_mbr *mbr1 = p1;
+ const struct pim_msdp_mg_mbr *mbr2 = p2;
- if (ntohl(mbr1->mbr_ip.s_addr) < ntohl(mbr2->mbr_ip.s_addr))
- return -1;
+ if (ntohl(mbr1->mbr_ip.s_addr) < ntohl(mbr2->mbr_ip.s_addr))
+ return -1;
- if (ntohl(mbr1->mbr_ip.s_addr) > ntohl(mbr2->mbr_ip.s_addr))
- return 1;
+ if (ntohl(mbr1->mbr_ip.s_addr) > ntohl(mbr2->mbr_ip.s_addr))
+ return 1;
- return 0;
+ return 0;
}
-static void
-pim_msdp_mg_mbr_free(struct pim_msdp_mg_mbr *mbr)
+static void pim_msdp_mg_mbr_free(struct pim_msdp_mg_mbr *mbr)
{
- XFREE(MTYPE_PIM_MSDP_MG_MBR, mbr);
+ XFREE(MTYPE_PIM_MSDP_MG_MBR, mbr);
}
-static struct pim_msdp_mg_mbr *
-pim_msdp_mg_mbr_find(struct in_addr mbr_ip)
+static struct pim_msdp_mg_mbr *pim_msdp_mg_mbr_find(struct in_addr mbr_ip)
{
- struct pim_msdp_mg_mbr *mbr;
- struct listnode *mbr_node;
+ struct pim_msdp_mg_mbr *mbr;
+ struct listnode *mbr_node;
- if (!msdp->mg) {
- return NULL;
- }
- /* we can move this to a hash but considering that number of peers in
- * a mesh-group that seems like bit of an overkill */
- for (ALL_LIST_ELEMENTS_RO(msdp->mg->mbr_list, mbr_node, mbr)) {
- if (mbr->mbr_ip.s_addr == mbr_ip.s_addr) {
- return mbr;
- }
- }
- return mbr;
+ if (!msdp->mg) {
+ return NULL;
+ }
+ /* we can move this to a hash but considering that number of peers in
+ * a mesh-group that seems like bit of an overkill */
+ for (ALL_LIST_ELEMENTS_RO(msdp->mg->mbr_list, mbr_node, mbr)) {
+ if (mbr->mbr_ip.s_addr == mbr_ip.s_addr) {
+ return mbr;
+ }
+ }
+ return mbr;
}
-enum pim_msdp_err
-pim_msdp_mg_mbr_add(const char *mesh_group_name, struct in_addr mbr_ip)
+enum pim_msdp_err pim_msdp_mg_mbr_add(const char *mesh_group_name,
+ struct in_addr mbr_ip)
{
- int rc;
- struct pim_msdp_mg_mbr *mbr;
- struct pim_msdp_mg *mg;
+ int rc;
+ struct pim_msdp_mg_mbr *mbr;
+ struct pim_msdp_mg *mg;
- rc = pim_msdp_mg_add(mesh_group_name);
- if (rc != PIM_MSDP_ERR_NONE) {
- return rc;
- }
+ rc = pim_msdp_mg_add(mesh_group_name);
+ if (rc != PIM_MSDP_ERR_NONE) {
+ return rc;
+ }
- mg = msdp->mg;
- mbr = pim_msdp_mg_mbr_find(mbr_ip);
- if (mbr) {
- return PIM_MSDP_ERR_MG_MBR_EXISTS;
- }
+ mg = msdp->mg;
+ mbr = pim_msdp_mg_mbr_find(mbr_ip);
+ if (mbr) {
+ return PIM_MSDP_ERR_MG_MBR_EXISTS;
+ }
- mbr = XCALLOC(MTYPE_PIM_MSDP_MG_MBR, sizeof(*mbr));
- if (!mbr) {
- zlog_err("%s: PIM XCALLOC(%zu) failure",
- __PRETTY_FUNCTION__, sizeof(*mbr));
- /* if there are no references to the mg free it */
- pim_msdp_mg_free(mg);
- return PIM_MSDP_ERR_OOM;
- }
- mbr->mbr_ip = mbr_ip;
- listnode_add_sort(mg->mbr_list, mbr);
+ mbr = XCALLOC(MTYPE_PIM_MSDP_MG_MBR, sizeof(*mbr));
+ if (!mbr) {
+ zlog_err("%s: PIM XCALLOC(%zu) failure", __PRETTY_FUNCTION__,
+ sizeof(*mbr));
+ /* if there are no references to the mg free it */
+ pim_msdp_mg_free(mg);
+ return PIM_MSDP_ERR_OOM;
+ }
+ mbr->mbr_ip = mbr_ip;
+ listnode_add_sort(mg->mbr_list, mbr);
- /* if valid SIP has been configured add peer session */
- if (mg->src_ip.s_addr != INADDR_ANY) {
- pim_msdp_peer_add(mbr_ip, mg->src_ip, mesh_group_name,
- &mbr->mp);
- }
+ /* if valid SIP has been configured add peer session */
+ if (mg->src_ip.s_addr != INADDR_ANY) {
+ pim_msdp_peer_add(mbr_ip, mg->src_ip, mesh_group_name,
+ &mbr->mp);
+ }
- if (PIM_DEBUG_MSDP_EVENTS) {
- char ip_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<mbr?>", mbr->mbr_ip, ip_str, sizeof(ip_str));
- zlog_debug("MSDP mesh-group %s mbr %s created", mg->mesh_group_name, ip_str);
- }
- ++mg->mbr_cnt;
- return PIM_MSDP_ERR_NONE;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ char ip_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<mbr?>", mbr->mbr_ip, ip_str, sizeof(ip_str));
+ zlog_debug("MSDP mesh-group %s mbr %s created",
+ mg->mesh_group_name, ip_str);
+ }
+ ++mg->mbr_cnt;
+ return PIM_MSDP_ERR_NONE;
}
-static void
-pim_msdp_mg_mbr_do_del(struct pim_msdp_mg *mg, struct pim_msdp_mg_mbr *mbr)
+static void pim_msdp_mg_mbr_do_del(struct pim_msdp_mg *mg,
+ struct pim_msdp_mg_mbr *mbr)
{
- /* Delete active peer session if any */
- if (mbr->mp) {
- pim_msdp_peer_do_del(mbr->mp);
- }
+ /* Delete active peer session if any */
+ if (mbr->mp) {
+ pim_msdp_peer_do_del(mbr->mp);
+ }
- listnode_delete(mg->mbr_list, mbr);
- if (PIM_DEBUG_MSDP_EVENTS) {
- char ip_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<mbr?>", mbr->mbr_ip, ip_str, sizeof(ip_str));
- zlog_debug("MSDP mesh-group %s mbr %s deleted", mg->mesh_group_name, ip_str);
- }
- pim_msdp_mg_mbr_free(mbr);
- if (mg->mbr_cnt) {
- --mg->mbr_cnt;
- }
+ listnode_delete(mg->mbr_list, mbr);
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ char ip_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<mbr?>", mbr->mbr_ip, ip_str, sizeof(ip_str));
+ zlog_debug("MSDP mesh-group %s mbr %s deleted",
+ mg->mesh_group_name, ip_str);
+ }
+ pim_msdp_mg_mbr_free(mbr);
+ if (mg->mbr_cnt) {
+ --mg->mbr_cnt;
+ }
}
-enum pim_msdp_err
-pim_msdp_mg_mbr_del(const char *mesh_group_name, struct in_addr mbr_ip)
-{
- struct pim_msdp_mg_mbr *mbr;
- struct pim_msdp_mg *mg = msdp->mg;
-
- if (!mg || strcmp(mg->mesh_group_name, mesh_group_name)) {
- return PIM_MSDP_ERR_NO_MG;
- }
-
- mbr = pim_msdp_mg_mbr_find(mbr_ip);
- if (!mbr) {
- return PIM_MSDP_ERR_NO_MG_MBR;
- }
-
- pim_msdp_mg_mbr_do_del(mg, mbr);
- /* if there are no references to the mg free it */
- pim_msdp_mg_free(mg);
-
- return PIM_MSDP_ERR_NONE;
-}
-
-static void
-pim_msdp_mg_src_do_del(void)
-{
- struct pim_msdp_mg_mbr *mbr;
- struct listnode *mbr_node;
- struct pim_msdp_mg *mg = msdp->mg;
-
- /* SIP is being removed - tear down all active peer sessions */
- for (ALL_LIST_ELEMENTS_RO(mg->mbr_list, mbr_node, mbr)) {
- if (mbr->mp) {
- pim_msdp_peer_do_del(mbr->mp);
- mbr->mp = NULL;
- }
- }
- if (PIM_DEBUG_MSDP_EVENTS) {
- zlog_debug("MSDP mesh-group %s src cleared", mg->mesh_group_name);
- }
-}
-
-enum pim_msdp_err
-pim_msdp_mg_src_del(const char *mesh_group_name)
-{
- struct pim_msdp_mg *mg = msdp->mg;
-
- if (!mg || strcmp(mg->mesh_group_name, mesh_group_name)) {
- return PIM_MSDP_ERR_NO_MG;
- }
-
- if (mg->src_ip.s_addr != INADDR_ANY) {
- mg->src_ip.s_addr = INADDR_ANY;
- pim_msdp_mg_src_do_del();
- /* if there are no references to the mg free it */
- pim_msdp_mg_free(mg);
- }
- return PIM_MSDP_ERR_NONE;
-}
-
-enum pim_msdp_err
-pim_msdp_mg_src_add(const char *mesh_group_name, struct in_addr src_ip)
-{
- int rc;
- struct pim_msdp_mg_mbr *mbr;
- struct listnode *mbr_node;
- struct pim_msdp_mg *mg;
-
- if (src_ip.s_addr == INADDR_ANY) {
- pim_msdp_mg_src_del(mesh_group_name);
- return PIM_MSDP_ERR_NONE;
- }
-
- rc = pim_msdp_mg_add(mesh_group_name);
- if (rc != PIM_MSDP_ERR_NONE) {
- return rc;
- }
-
- mg = msdp->mg;
- if (mg->src_ip.s_addr != INADDR_ANY) {
- pim_msdp_mg_src_do_del();
- }
- mg->src_ip = src_ip;
+enum pim_msdp_err pim_msdp_mg_mbr_del(const char *mesh_group_name,
+ struct in_addr mbr_ip)
+{
+ struct pim_msdp_mg_mbr *mbr;
+ struct pim_msdp_mg *mg = msdp->mg;
+
+ if (!mg || strcmp(mg->mesh_group_name, mesh_group_name)) {
+ return PIM_MSDP_ERR_NO_MG;
+ }
+
+ mbr = pim_msdp_mg_mbr_find(mbr_ip);
+ if (!mbr) {
+ return PIM_MSDP_ERR_NO_MG_MBR;
+ }
+
+ pim_msdp_mg_mbr_do_del(mg, mbr);
+ /* if there are no references to the mg free it */
+ pim_msdp_mg_free(mg);
+
+ return PIM_MSDP_ERR_NONE;
+}
+
+static void pim_msdp_mg_src_do_del(void)
+{
+ struct pim_msdp_mg_mbr *mbr;
+ struct listnode *mbr_node;
+ struct pim_msdp_mg *mg = msdp->mg;
+
+ /* SIP is being removed - tear down all active peer sessions */
+ for (ALL_LIST_ELEMENTS_RO(mg->mbr_list, mbr_node, mbr)) {
+ if (mbr->mp) {
+ pim_msdp_peer_do_del(mbr->mp);
+ mbr->mp = NULL;
+ }
+ }
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ zlog_debug("MSDP mesh-group %s src cleared",
+ mg->mesh_group_name);
+ }
+}
+
+enum pim_msdp_err pim_msdp_mg_src_del(const char *mesh_group_name)
+{
+ struct pim_msdp_mg *mg = msdp->mg;
+
+ if (!mg || strcmp(mg->mesh_group_name, mesh_group_name)) {
+ return PIM_MSDP_ERR_NO_MG;
+ }
+
+ if (mg->src_ip.s_addr != INADDR_ANY) {
+ mg->src_ip.s_addr = INADDR_ANY;
+ pim_msdp_mg_src_do_del();
+ /* if there are no references to the mg free it */
+ pim_msdp_mg_free(mg);
+ }
+ return PIM_MSDP_ERR_NONE;
+}
+
+enum pim_msdp_err pim_msdp_mg_src_add(const char *mesh_group_name,
+ struct in_addr src_ip)
+{
+ int rc;
+ struct pim_msdp_mg_mbr *mbr;
+ struct listnode *mbr_node;
+ struct pim_msdp_mg *mg;
+
+ if (src_ip.s_addr == INADDR_ANY) {
+ pim_msdp_mg_src_del(mesh_group_name);
+ return PIM_MSDP_ERR_NONE;
+ }
+
+ rc = pim_msdp_mg_add(mesh_group_name);
+ if (rc != PIM_MSDP_ERR_NONE) {
+ return rc;
+ }
+
+ mg = msdp->mg;
+ if (mg->src_ip.s_addr != INADDR_ANY) {
+ pim_msdp_mg_src_do_del();
+ }
+ mg->src_ip = src_ip;
- for (ALL_LIST_ELEMENTS_RO(mg->mbr_list, mbr_node, mbr)) {
- pim_msdp_peer_add(mbr->mbr_ip, mg->src_ip, mesh_group_name,
- &mbr->mp);
- }
+ for (ALL_LIST_ELEMENTS_RO(mg->mbr_list, mbr_node, mbr)) {
+ pim_msdp_peer_add(mbr->mbr_ip, mg->src_ip, mesh_group_name,
+ &mbr->mp);
+ }
- if (PIM_DEBUG_MSDP_EVENTS) {
- char ip_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<src?>", mg->src_ip, ip_str, sizeof(ip_str));
- zlog_debug("MSDP mesh-group %s src %s set", mg->mesh_group_name, ip_str);
- }
- return PIM_MSDP_ERR_NONE;
+ if (PIM_DEBUG_MSDP_EVENTS) {
+ char ip_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<src?>", mg->src_ip, ip_str, sizeof(ip_str));
+ zlog_debug("MSDP mesh-group %s src %s set", mg->mesh_group_name,
+ ip_str);
+ }
+ return PIM_MSDP_ERR_NONE;
}
/*********************** MSDP feature APIs *********************************/
-int
-pim_msdp_config_write(struct vty *vty)
-{
- struct listnode *mbrnode;
- struct pim_msdp_mg_mbr *mbr;
- struct pim_msdp_mg *mg = msdp->mg;
- char mbr_str[INET_ADDRSTRLEN];
- char src_str[INET_ADDRSTRLEN];
- int count = 0;
-
- if (!mg) {
- return count;
- }
-
- if (mg->src_ip.s_addr != INADDR_ANY) {
- pim_inet4_dump("<src?>", mg->src_ip, src_str, sizeof(src_str));
- vty_out (vty, "ip msdp mesh-group %s source %s\n",
- mg->mesh_group_name, src_str);
- ++count;
- }
-
- for (ALL_LIST_ELEMENTS_RO(mg->mbr_list, mbrnode, mbr)) {
- pim_inet4_dump("<mbr?>", mbr->mbr_ip, mbr_str, sizeof(mbr_str));
- vty_out (vty, "ip msdp mesh-group %s member %s\n",
- mg->mesh_group_name, mbr_str);
- ++count;
- }
- return count;
+int pim_msdp_config_write(struct vty *vty)
+{
+ struct listnode *mbrnode;
+ struct pim_msdp_mg_mbr *mbr;
+ struct pim_msdp_mg *mg = msdp->mg;
+ char mbr_str[INET_ADDRSTRLEN];
+ char src_str[INET_ADDRSTRLEN];
+ int count = 0;
+
+ if (!mg) {
+ return count;
+ }
+
+ if (mg->src_ip.s_addr != INADDR_ANY) {
+ pim_inet4_dump("<src?>", mg->src_ip, src_str, sizeof(src_str));
+ vty_out(vty, "ip msdp mesh-group %s source %s\n",
+ mg->mesh_group_name, src_str);
+ ++count;
+ }
+
+ for (ALL_LIST_ELEMENTS_RO(mg->mbr_list, mbrnode, mbr)) {
+ pim_inet4_dump("<mbr?>", mbr->mbr_ip, mbr_str, sizeof(mbr_str));
+ vty_out(vty, "ip msdp mesh-group %s member %s\n",
+ mg->mesh_group_name, mbr_str);
+ ++count;
+ }
+ return count;
}
/* Enable feature including active/periodic timers etc. on the first peer
* config. Till then MSDP should just stay quiet. */
-static void
-pim_msdp_enable(void)
+static void pim_msdp_enable(void)
{
- if (msdp->flags & PIM_MSDPF_ENABLE) {
- /* feature is already enabled */
- return;
- }
- msdp->flags |= PIM_MSDPF_ENABLE;
- msdp->work_obuf = stream_new(PIM_MSDP_MAX_PACKET_SIZE);
- pim_msdp_sa_adv_timer_setup(true /* start */);
- /* setup sa cache based on local sources */
- pim_msdp_sa_local_setup();
+ if (msdp->flags & PIM_MSDPF_ENABLE) {
+ /* feature is already enabled */
+ return;
+ }
+ msdp->flags |= PIM_MSDPF_ENABLE;
+ msdp->work_obuf = stream_new(PIM_MSDP_MAX_PACKET_SIZE);
+ pim_msdp_sa_adv_timer_setup(true /* start */);
+ /* setup sa cache based on local sources */
+ pim_msdp_sa_local_setup();
}
/* MSDP init */
-void
-pim_msdp_init(struct thread_master *master)
+void pim_msdp_init(struct thread_master *master)
{
- msdp->master = master;
+ msdp->master = master;
- msdp->peer_hash = hash_create(pim_msdp_peer_hash_key_make,
- pim_msdp_peer_hash_eq, NULL);
- msdp->peer_list = list_new();
- msdp->peer_list->del = (void (*)(void *))pim_msdp_peer_free;
- msdp->peer_list->cmp = (int (*)(void *, void *))pim_msdp_peer_comp;
+ msdp->peer_hash = hash_create(pim_msdp_peer_hash_key_make,
+ pim_msdp_peer_hash_eq, NULL);
+ msdp->peer_list = list_new();
+ msdp->peer_list->del = (void (*)(void *))pim_msdp_peer_free;
+ msdp->peer_list->cmp = (int (*)(void *, void *))pim_msdp_peer_comp;
- msdp->sa_hash = hash_create(pim_msdp_sa_hash_key_make,
- pim_msdp_sa_hash_eq, NULL);
- msdp->sa_list = list_new();
- msdp->sa_list->del = (void (*)(void *))pim_msdp_sa_free;
- msdp->sa_list->cmp = (int (*)(void *, void *))pim_msdp_sa_comp;
+ msdp->sa_hash = hash_create(pim_msdp_sa_hash_key_make,
+ pim_msdp_sa_hash_eq, NULL);
+ msdp->sa_list = list_new();
+ msdp->sa_list->del = (void (*)(void *))pim_msdp_sa_free;
+ msdp->sa_list->cmp = (int (*)(void *, void *))pim_msdp_sa_comp;
}
/* counterpart to MSDP init; XXX: unused currently */
-void
-pim_msdp_exit(void)
+void pim_msdp_exit(void)
{
- /* XXX: stop listener and delete all peer sessions */
+ /* XXX: stop listener and delete all peer sessions */
- if (msdp->peer_hash) {
- hash_free(msdp->peer_hash);
- msdp->peer_hash = NULL;
- }
+ if (msdp->peer_hash) {
+ hash_free(msdp->peer_hash);
+ msdp->peer_hash = NULL;
+ }
- if (msdp->peer_list) {
- list_free(msdp->peer_list);
- msdp->peer_list = NULL;
- }
+ if (msdp->peer_list) {
+ list_free(msdp->peer_list);
+ msdp->peer_list = NULL;
+ }
}
projects / mirror_frr.git / blobdiff