static int pim_router_id_update_zebra(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
- struct prefix router_id;
+ struct prefix router_id;
- zebra_router_id_update_read(zclient->ibuf, &router_id);
+ zebra_router_id_update_read(zclient->ibuf, &router_id);
- return 0;
+ return 0;
}
static int pim_zebra_if_add(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
- struct interface *ifp;
-
- /*
- zebra api adds/dels interfaces using the same call
- interface_add_read below, see comments in lib/zclient.c
- */
- ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
- if (!ifp)
- return 0;
-
- if (PIM_DEBUG_ZEBRA) {
- zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
- __PRETTY_FUNCTION__,
- ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
- ifp->mtu, if_is_operative(ifp));
- }
-
- if (if_is_operative(ifp))
- pim_if_addr_add_all(ifp);
-
- return 0;
+ struct interface *ifp;
+
+ /*
+ zebra api adds/dels interfaces using the same call
+ interface_add_read below, see comments in lib/zclient.c
+ */
+ ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
+ if (!ifp)
+ return 0;
+
+ if (PIM_DEBUG_ZEBRA) {
+ zlog_debug(
+ "%s: %s index %d flags %ld metric %d mtu %d operative %d",
+ __PRETTY_FUNCTION__, ifp->name, ifp->ifindex,
+ (long)ifp->flags, ifp->metric, ifp->mtu,
+ if_is_operative(ifp));
+ }
+
+ if (if_is_operative(ifp))
+ pim_if_addr_add_all(ifp);
+
+ return 0;
}
static int pim_zebra_if_del(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
- struct interface *ifp;
-
- /*
- zebra api adds/dels interfaces using the same call
- interface_add_read below, see comments in lib/zclient.c
-
- comments in lib/zclient.c seem to indicate that calling
- zebra_interface_add_read is the correct call, but that
- results in an attemted out of bounds read which causes
- pimd to assert. Other clients use zebra_interface_state_read
- and it appears to work just fine.
- */
- ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
- if (!ifp)
- return 0;
-
- if (PIM_DEBUG_ZEBRA) {
- zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
- __PRETTY_FUNCTION__,
- ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
- ifp->mtu, if_is_operative(ifp));
- }
-
- if (!if_is_operative(ifp))
- pim_if_addr_del_all(ifp);
-
- return 0;
+ struct interface *ifp;
+
+ /*
+ zebra api adds/dels interfaces using the same call
+ interface_add_read below, see comments in lib/zclient.c
+
+ comments in lib/zclient.c seem to indicate that calling
+ zebra_interface_add_read is the correct call, but that
+ results in an attemted out of bounds read which causes
+ pimd to assert. Other clients use zebra_interface_state_read
+ and it appears to work just fine.
+ */
+ ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
+ if (!ifp)
+ return 0;
+
+ if (PIM_DEBUG_ZEBRA) {
+ zlog_debug(
+ "%s: %s index %d flags %ld metric %d mtu %d operative %d",
+ __PRETTY_FUNCTION__, ifp->name, ifp->ifindex,
+ (long)ifp->flags, ifp->metric, ifp->mtu,
+ if_is_operative(ifp));
+ }
+
+ if (!if_is_operative(ifp))
+ pim_if_addr_del_all(ifp);
+
+ return 0;
}
static int pim_zebra_if_state_up(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
- struct interface *ifp;
-
- /*
- zebra api notifies interface up/down events by using the same call
- zebra_interface_state_read below, see comments in lib/zclient.c
- */
- ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
- if (!ifp)
- return 0;
-
- if (PIM_DEBUG_ZEBRA) {
- zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
- __PRETTY_FUNCTION__,
- ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
- ifp->mtu, if_is_operative(ifp));
- }
-
- if (if_is_operative(ifp)) {
- /*
- pim_if_addr_add_all() suffices for bringing up both IGMP and PIM
- */
- pim_if_addr_add_all(ifp);
- }
-
- return 0;
+ struct interface *ifp;
+
+ /*
+ zebra api notifies interface up/down events by using the same call
+ zebra_interface_state_read below, see comments in lib/zclient.c
+ */
+ ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
+ if (!ifp)
+ return 0;
+
+ if (PIM_DEBUG_ZEBRA) {
+ zlog_debug(
+ "%s: %s index %d flags %ld metric %d mtu %d operative %d",
+ __PRETTY_FUNCTION__, ifp->name, ifp->ifindex,
+ (long)ifp->flags, ifp->metric, ifp->mtu,
+ if_is_operative(ifp));
+ }
+
+ if (if_is_operative(ifp)) {
+ /*
+ pim_if_addr_add_all() suffices for bringing up both IGMP and
+ PIM
+ */
+ pim_if_addr_add_all(ifp);
+ }
+
+ return 0;
}
static int pim_zebra_if_state_down(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
- struct interface *ifp;
-
- /*
- zebra api notifies interface up/down events by using the same call
- zebra_interface_state_read below, see comments in lib/zclient.c
- */
- ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
- if (!ifp)
- return 0;
-
- if (PIM_DEBUG_ZEBRA) {
- zlog_debug("%s: %s index %d flags %ld metric %d mtu %d operative %d",
- __PRETTY_FUNCTION__,
- ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric,
- ifp->mtu, if_is_operative(ifp));
- }
-
- if (!if_is_operative(ifp)) {
- pim_ifchannel_delete_all(ifp);
- /*
- pim_if_addr_del_all() suffices for shutting down IGMP,
- but not for shutting down PIM
- */
- pim_if_addr_del_all(ifp);
-
- /*
- pim_sock_delete() closes the socket, stops read and timer threads,
- and kills all neighbors.
- */
- if (ifp->info) {
- pim_sock_delete(ifp, "link down");
- }
- }
-
- if (ifp->info)
- pim_if_del_vif(ifp);
-
- return 0;
+ struct interface *ifp;
+
+ /*
+ zebra api notifies interface up/down events by using the same call
+ zebra_interface_state_read below, see comments in lib/zclient.c
+ */
+ ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
+ if (!ifp)
+ return 0;
+
+ if (PIM_DEBUG_ZEBRA) {
+ zlog_debug(
+ "%s: %s index %d flags %ld metric %d mtu %d operative %d",
+ __PRETTY_FUNCTION__, ifp->name, ifp->ifindex,
+ (long)ifp->flags, ifp->metric, ifp->mtu,
+ if_is_operative(ifp));
+ }
+
+ if (!if_is_operative(ifp)) {
+ pim_ifchannel_delete_all(ifp);
+ /*
+ pim_if_addr_del_all() suffices for shutting down IGMP,
+ but not for shutting down PIM
+ */
+ pim_if_addr_del_all(ifp);
+
+ /*
+ pim_sock_delete() closes the socket, stops read and timer
+ threads,
+ and kills all neighbors.
+ */
+ if (ifp->info) {
+ pim_sock_delete(ifp, "link down");
+ }
+ }
+
+ if (ifp->info)
+ pim_if_del_vif(ifp);
+
+ return 0;
}
#ifdef PIM_DEBUG_IFADDR_DUMP
static void dump_if_address(struct interface *ifp)
{
- struct connected *ifc;
- struct listnode *node;
-
- zlog_debug("%s %s: interface %s addresses:",
- __FILE__, __PRETTY_FUNCTION__,
- ifp->name);
-
- for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) {
- struct prefix *p = ifc->address;
-
- if (p->family != AF_INET)
- continue;
-
- zlog_debug("%s %s: interface %s address %s %s",
- __FILE__, __PRETTY_FUNCTION__,
- ifp->name,
- inet_ntoa(p->u.prefix4),
- CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) ?
- "secondary" : "primary");
- }
+ struct connected *ifc;
+ struct listnode *node;
+
+ zlog_debug("%s %s: interface %s addresses:", __FILE__,
+ __PRETTY_FUNCTION__, ifp->name);
+
+ for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) {
+ struct prefix *p = ifc->address;
+
+ if (p->family != AF_INET)
+ continue;
+
+ zlog_debug("%s %s: interface %s address %s %s", __FILE__,
+ __PRETTY_FUNCTION__, ifp->name,
+ inet_ntoa(p->u.prefix4),
+ CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)
+ ? "secondary"
+ : "primary");
+ }
}
#endif
static int pim_zebra_if_address_add(int command, struct zclient *zclient,
zebra_size_t length, vrf_id_t vrf_id)
{
- struct connected *c;
- struct prefix *p;
- struct pim_interface *pim_ifp;
-
- /*
- zebra api notifies address adds/dels events by using the same call
- interface_add_read below, see comments in lib/zclient.c
-
- zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, ...)
- will add address to interface list by calling
- connected_add_by_prefix()
- */
- c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
- if (!c)
- return 0;
-
- pim_ifp = c->ifp->info;
- p = c->address;
-
- if (PIM_DEBUG_ZEBRA) {
- char buf[BUFSIZ];
- prefix2str(p, buf, BUFSIZ);
- zlog_debug("%s: %s connected IP address %s flags %u %s",
- __PRETTY_FUNCTION__,
- c->ifp->name, buf, c->flags,
- CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY) ? "secondary" : "primary");
-
+ struct connected *c;
+ struct prefix *p;
+ struct pim_interface *pim_ifp;
+
+ /*
+ zebra api notifies address adds/dels events by using the same call
+ interface_add_read below, see comments in lib/zclient.c
+
+ zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, ...)
+ will add address to interface list by calling
+ connected_add_by_prefix()
+ */
+ c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
+ if (!c)
+ return 0;
+
+ pim_ifp = c->ifp->info;
+ p = c->address;
+
+ if (PIM_DEBUG_ZEBRA) {
+ char buf[BUFSIZ];
+ prefix2str(p, buf, BUFSIZ);
+ zlog_debug("%s: %s connected IP address %s flags %u %s",
+ __PRETTY_FUNCTION__, c->ifp->name, buf, c->flags,
+ CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY)
+ ? "secondary"
+ : "primary");
+
#ifdef PIM_DEBUG_IFADDR_DUMP
- dump_if_address(c->ifp);
+ dump_if_address(c->ifp);
#endif
- }
+ }
- if (!CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY)) {
- /* trying to add primary address */
+ if (!CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY)) {
+ /* trying to add primary address */
- struct in_addr primary_addr = pim_find_primary_addr(c->ifp);
- if (p->family != AF_INET || primary_addr.s_addr != p->u.prefix4.s_addr) {
- if (PIM_DEBUG_ZEBRA) {
- /* but we had a primary address already */
+ struct in_addr primary_addr = pim_find_primary_addr(c->ifp);
+ if (p->family != AF_INET
+ || primary_addr.s_addr != p->u.prefix4.s_addr) {
+ if (PIM_DEBUG_ZEBRA) {
+ /* but we had a primary address already */
- char buf[BUFSIZ];
+ char buf[BUFSIZ];
- prefix2str(p, buf, BUFSIZ);
+ prefix2str(p, buf, BUFSIZ);
- zlog_warn("%s: %s : forcing secondary flag on %s",
- __PRETTY_FUNCTION__,
- c->ifp->name, buf);
- }
- SET_FLAG(c->flags, ZEBRA_IFA_SECONDARY);
- }
- }
+ zlog_warn(
+ "%s: %s : forcing secondary flag on %s",
+ __PRETTY_FUNCTION__, c->ifp->name, buf);
+ }
+ SET_FLAG(c->flags, ZEBRA_IFA_SECONDARY);
+ }
+ }
- pim_if_addr_add(c);
- if (pim_ifp)
- pim_rp_check_on_if_add(pim_ifp);
+ pim_if_addr_add(c);
+ if (pim_ifp)
+ pim_rp_check_on_if_add(pim_ifp);
- if (if_is_loopback (c->ifp))
- {
- struct listnode *ifnode;
- struct interface *ifp;
+ if (if_is_loopback(c->ifp)) {
+ struct listnode *ifnode;
+ struct interface *ifp;
- for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), ifnode, ifp))
- {
- if (!if_is_loopback (ifp) && if_is_operative (ifp))
- pim_if_addr_add_all (ifp);
- }
- }
+ for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), ifnode,
+ ifp)) {
+ if (!if_is_loopback(ifp) && if_is_operative(ifp))
+ pim_if_addr_add_all(ifp);
+ }
+ }
- return 0;
+ return 0;
}
static int pim_zebra_if_address_del(int command, struct zclient *client,
zebra_size_t length, vrf_id_t vrf_id)
{
- struct connected *c;
- struct prefix *p;
-
- /*
- zebra api notifies address adds/dels events by using the same call
- interface_add_read below, see comments in lib/zclient.c
-
- zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, ...)
- will remove address from interface list by calling
- connected_delete_by_prefix()
- */
- c = zebra_interface_address_read(command, client->ibuf, vrf_id);
- if (!c)
- return 0;
-
- p = c->address;
- if (p->family == AF_INET)
- {
- if (PIM_DEBUG_ZEBRA) {
- char buf[BUFSIZ];
- prefix2str(p, buf, BUFSIZ);
- zlog_debug("%s: %s disconnected IP address %s flags %u %s",
- __PRETTY_FUNCTION__,
- c->ifp->name, buf, c->flags,
- CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY) ? "secondary" : "primary");
+ struct connected *c;
+ struct prefix *p;
+
+ /*
+ zebra api notifies address adds/dels events by using the same call
+ interface_add_read below, see comments in lib/zclient.c
+
+ zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, ...)
+ will remove address from interface list by calling
+ connected_delete_by_prefix()
+ */
+ c = zebra_interface_address_read(command, client->ibuf, vrf_id);
+ if (!c)
+ return 0;
+
+ p = c->address;
+ if (p->family == AF_INET) {
+ if (PIM_DEBUG_ZEBRA) {
+ char buf[BUFSIZ];
+ prefix2str(p, buf, BUFSIZ);
+ zlog_debug(
+ "%s: %s disconnected IP address %s flags %u %s",
+ __PRETTY_FUNCTION__, c->ifp->name, buf,
+ c->flags,
+ CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY)
+ ? "secondary"
+ : "primary");
#ifdef PIM_DEBUG_IFADDR_DUMP
- dump_if_address(c->ifp);
+ dump_if_address(c->ifp);
#endif
- }
+ }
- pim_if_addr_del(c, 0);
- pim_rp_setup();
- pim_i_am_rp_re_evaluate();
- }
+ pim_if_addr_del(c, 0);
+ pim_rp_setup();
+ pim_i_am_rp_re_evaluate();
+ }
- connected_free (c);
- return 0;
+ connected_free(c);
+ return 0;
}
static void scan_upstream_rpf_cache()
{
- struct listnode *up_node;
- struct listnode *ifnode;
- struct listnode *up_nextnode;
- struct listnode *node;
- struct pim_upstream *up;
- struct interface *ifp;
-
- for (ALL_LIST_ELEMENTS(pim_upstream_list, up_node, up_nextnode, up)) {
- enum pim_rpf_result rpf_result;
- struct pim_rpf old;
- struct prefix nht_p;
-
- nht_p.family = AF_INET;
- nht_p.prefixlen = IPV4_MAX_BITLEN;
- nht_p.u.prefix4.s_addr = up->upstream_addr.s_addr;
- pim_resolve_upstream_nh (&nht_p);
-
- old.source_nexthop.interface = up->rpf.source_nexthop.interface;
- old.source_nexthop.nbr = up->rpf.source_nexthop.nbr;
- rpf_result = pim_rpf_update(up, &old, 0);
-
- if (rpf_result == PIM_RPF_FAILURE)
- continue;
-
- if (rpf_result == PIM_RPF_CHANGED) {
- struct pim_neighbor *nbr;
-
- nbr = pim_neighbor_find (old.source_nexthop.interface,
- old.rpf_addr.u.prefix4);
- if (nbr)
- pim_jp_agg_remove_group (nbr->upstream_jp_agg, up);
-
- /*
- * We have detected a case where we might need to rescan
- * the inherited o_list so do it.
- */
- if (up->channel_oil->oil_inherited_rescan)
- {
- pim_upstream_inherited_olist_decide (up);
- up->channel_oil->oil_inherited_rescan = 0;
- }
-
- if (up->join_state == PIM_UPSTREAM_JOINED) {
- /*
- * If we come up real fast we can be here
- * where the mroute has not been installed
- * so install it.
- */
- if (!up->channel_oil->installed)
- pim_mroute_add (up->channel_oil, __PRETTY_FUNCTION__);
-
- /*
- * RFC 4601: 4.5.7. Sending (S,G) Join/Prune Messages
- *
- * Transitions from Joined State
- *
- * RPF'(S,G) changes not due to an Assert
- *
- * The upstream (S,G) state machine remains in Joined
- * state. Send Join(S,G) to the new upstream neighbor, which is
- * the new value of RPF'(S,G). Send Prune(S,G) to the old
- * upstream neighbor, which is the old value of RPF'(S,G). Set
- * the Join Timer (JT) to expire after t_periodic seconds.
- */
- pim_jp_agg_switch_interface (&old, &up->rpf, up);
-
- pim_upstream_join_timer_restart(up, &old);
- } /* up->join_state == PIM_UPSTREAM_JOINED */
-
- /* FIXME can join_desired actually be changed by pim_rpf_update()
- returning PIM_RPF_CHANGED ? */
- pim_upstream_update_join_desired(up);
-
- } /* PIM_RPF_CHANGED */
-
- } /* for (qpim_upstream_list) */
-
- for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), ifnode, ifp))
- if (ifp->info)
- {
- struct pim_interface *pim_ifp = ifp->info;
- struct pim_iface_upstream_switch *us;
-
- for (ALL_LIST_ELEMENTS_RO(pim_ifp->upstream_switch_list, node, us))
- {
- struct pim_rpf rpf;
- rpf.source_nexthop.interface = ifp;
- rpf.rpf_addr.u.prefix4 = us->address;
- pim_joinprune_send(&rpf, us->us);
- pim_jp_agg_clear_group(us->us);
- }
- }
+ struct listnode *up_node;
+ struct listnode *ifnode;
+ struct listnode *up_nextnode;
+ struct listnode *node;
+ struct pim_upstream *up;
+ struct interface *ifp;
+
+ for (ALL_LIST_ELEMENTS(pim_upstream_list, up_node, up_nextnode, up)) {
+ enum pim_rpf_result rpf_result;
+ struct pim_rpf old;
+ struct prefix nht_p;
+
+ nht_p.family = AF_INET;
+ nht_p.prefixlen = IPV4_MAX_BITLEN;
+ nht_p.u.prefix4.s_addr = up->upstream_addr.s_addr;
+ pim_resolve_upstream_nh(&nht_p);
+
+ old.source_nexthop.interface = up->rpf.source_nexthop.interface;
+ old.source_nexthop.nbr = up->rpf.source_nexthop.nbr;
+ rpf_result = pim_rpf_update(up, &old, 0);
+
+ if (rpf_result == PIM_RPF_FAILURE)
+ continue;
+
+ if (rpf_result == PIM_RPF_CHANGED) {
+ struct pim_neighbor *nbr;
+
+ nbr = pim_neighbor_find(old.source_nexthop.interface,
+ old.rpf_addr.u.prefix4);
+ if (nbr)
+ pim_jp_agg_remove_group(nbr->upstream_jp_agg,
+ up);
+
+ /*
+ * We have detected a case where we might need to rescan
+ * the inherited o_list so do it.
+ */
+ if (up->channel_oil->oil_inherited_rescan) {
+ pim_upstream_inherited_olist_decide(up);
+ up->channel_oil->oil_inherited_rescan = 0;
+ }
+
+ if (up->join_state == PIM_UPSTREAM_JOINED) {
+ /*
+ * If we come up real fast we can be here
+ * where the mroute has not been installed
+ * so install it.
+ */
+ if (!up->channel_oil->installed)
+ pim_mroute_add(up->channel_oil,
+ __PRETTY_FUNCTION__);
+
+ /*
+ * RFC 4601: 4.5.7. Sending (S,G) Join/Prune
+ * Messages
+ *
+ * Transitions from Joined State
+ *
+ * RPF'(S,G) changes not due to an Assert
+ *
+ * The upstream (S,G) state machine remains in
+ * Joined
+ * state. Send Join(S,G) to the new upstream
+ * neighbor, which is
+ * the new value of RPF'(S,G). Send Prune(S,G)
+ * to the old
+ * upstream neighbor, which is the old value of
+ * RPF'(S,G). Set
+ * the Join Timer (JT) to expire after
+ * t_periodic seconds.
+ */
+ pim_jp_agg_switch_interface(&old, &up->rpf, up);
+
+ pim_upstream_join_timer_restart(up, &old);
+ } /* up->join_state == PIM_UPSTREAM_JOINED */
+
+ /* FIXME can join_desired actually be changed by
+ pim_rpf_update()
+ returning PIM_RPF_CHANGED ? */
+ pim_upstream_update_join_desired(up);
+
+ } /* PIM_RPF_CHANGED */
+
+ } /* for (qpim_upstream_list) */
+
+ for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), ifnode, ifp))
+ if (ifp->info) {
+ struct pim_interface *pim_ifp = ifp->info;
+ struct pim_iface_upstream_switch *us;
+
+ for (ALL_LIST_ELEMENTS_RO(pim_ifp->upstream_switch_list,
+ node, us)) {
+ struct pim_rpf rpf;
+ rpf.source_nexthop.interface = ifp;
+ rpf.rpf_addr.u.prefix4 = us->address;
+ pim_joinprune_send(&rpf, us->us);
+ pim_jp_agg_clear_group(us->us);
+ }
+ }
}
-void
-pim_scan_individual_oil (struct channel_oil *c_oil, int in_vif_index)
+void pim_scan_individual_oil(struct channel_oil *c_oil, int in_vif_index)
{
- struct in_addr vif_source;
- int input_iface_vif_index;
- int old_vif_index;
-
- if (!pim_rp_set_upstream_addr (&vif_source, c_oil->oil.mfcc_origin, c_oil->oil.mfcc_mcastgrp))
- return;
-
- if (in_vif_index)
- input_iface_vif_index = in_vif_index;
- else
- {
- struct prefix src, grp;
-
- src.family = AF_INET;
- src.prefixlen = IPV4_MAX_BITLEN;
- src.u.prefix4 = vif_source;
- grp.family = AF_INET;
- grp.prefixlen = IPV4_MAX_BITLEN;
- grp.u.prefix4 = c_oil->oil.mfcc_mcastgrp;
-
- if (PIM_DEBUG_ZEBRA)
- {
- char source_str[INET_ADDRSTRLEN];
- char group_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, source_str, sizeof(source_str));
- pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, group_str, sizeof(group_str));
- zlog_debug ("%s: channel_oil (%s, %s) upstream info is not present.",
- __PRETTY_FUNCTION__, source_str, group_str);
- }
- input_iface_vif_index = pim_ecmp_fib_lookup_if_vif_index(vif_source, &src, &grp);
- }
-
- if (input_iface_vif_index < 1)
- {
- if (PIM_DEBUG_ZEBRA)
- {
- char source_str[INET_ADDRSTRLEN];
- char group_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, source_str, sizeof(source_str));
- pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, group_str, sizeof(group_str));
- zlog_debug("%s %s: could not find input interface(%d) for (S,G)=(%s,%s)",
- __FILE__, __PRETTY_FUNCTION__, c_oil->oil.mfcc_parent,
- source_str, group_str);
- }
- pim_mroute_del (c_oil, __PRETTY_FUNCTION__);
- return;
- }
-
- if (input_iface_vif_index == c_oil->oil.mfcc_parent)
- {
- if (!c_oil->installed)
- pim_mroute_add (c_oil, __PRETTY_FUNCTION__);
-
- /* RPF unchanged */
- return;
- }
-
- if (PIM_DEBUG_ZEBRA)
- {
- struct interface *old_iif = pim_if_find_by_vif_index(c_oil->oil.mfcc_parent);
- struct interface *new_iif = pim_if_find_by_vif_index(input_iface_vif_index);
- char source_str[INET_ADDRSTRLEN];
- char group_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, source_str, sizeof(source_str));
- pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, group_str, sizeof(group_str));
- zlog_debug("%s %s: (S,G)=(%s,%s) input interface changed from %s vif_index=%d to %s vif_index=%d",
- __FILE__, __PRETTY_FUNCTION__,
- source_str, group_str,
- old_iif->name, c_oil->oil.mfcc_parent,
- new_iif->name, input_iface_vif_index);
- }
-
- /* new iif loops to existing oif ? */
- if (c_oil->oil.mfcc_ttls[input_iface_vif_index])
- {
- struct interface *new_iif = pim_if_find_by_vif_index(input_iface_vif_index);
-
- if (PIM_DEBUG_ZEBRA) {
- char source_str[INET_ADDRSTRLEN];
- char group_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, source_str, sizeof(source_str));
- pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, group_str, sizeof(group_str));
- zlog_debug("%s %s: (S,G)=(%s,%s) new iif loops to existing oif: %s vif_index=%d",
- __FILE__, __PRETTY_FUNCTION__,
- source_str, group_str,
- new_iif->name, input_iface_vif_index);
- }
- }
-
- /* update iif vif_index */
- old_vif_index = c_oil->oil.mfcc_parent;
- c_oil->oil.mfcc_parent = input_iface_vif_index;
-
- /* update kernel multicast forwarding cache (MFC) */
- if (pim_mroute_add(c_oil, __PRETTY_FUNCTION__))
- {
- if (PIM_DEBUG_MROUTE)
- {
- /* just log warning */
- struct interface *old_iif = pim_if_find_by_vif_index(old_vif_index);
- struct interface *new_iif = pim_if_find_by_vif_index(input_iface_vif_index);
- char source_str[INET_ADDRSTRLEN];
- char group_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, source_str, sizeof(source_str));
- pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, group_str, sizeof(group_str));
- zlog_debug("%s %s: (S,G)=(%s,%s) failure updating input interface from %s vif_index=%d to %s vif_index=%d",
- __FILE__, __PRETTY_FUNCTION__,
- source_str, group_str,
- old_iif ? old_iif->name : "<old_iif?>", c_oil->oil.mfcc_parent,
- new_iif ? new_iif->name : "<new_iif?>", input_iface_vif_index);
- }
- }
+ struct in_addr vif_source;
+ int input_iface_vif_index;
+ int old_vif_index;
+
+ if (!pim_rp_set_upstream_addr(&vif_source, c_oil->oil.mfcc_origin,
+ c_oil->oil.mfcc_mcastgrp))
+ return;
+
+ if (in_vif_index)
+ input_iface_vif_index = in_vif_index;
+ else {
+ struct prefix src, grp;
+
+ src.family = AF_INET;
+ src.prefixlen = IPV4_MAX_BITLEN;
+ src.u.prefix4 = vif_source;
+ grp.family = AF_INET;
+ grp.prefixlen = IPV4_MAX_BITLEN;
+ grp.u.prefix4 = c_oil->oil.mfcc_mcastgrp;
+
+ if (PIM_DEBUG_ZEBRA) {
+ char source_str[INET_ADDRSTRLEN];
+ char group_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin,
+ source_str, sizeof(source_str));
+ pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp,
+ group_str, sizeof(group_str));
+ zlog_debug(
+ "%s: channel_oil (%s, %s) upstream info is not present.",
+ __PRETTY_FUNCTION__, source_str, group_str);
+ }
+ input_iface_vif_index = pim_ecmp_fib_lookup_if_vif_index(
+ vif_source, &src, &grp);
+ }
+
+ if (input_iface_vif_index < 1) {
+ if (PIM_DEBUG_ZEBRA) {
+ char source_str[INET_ADDRSTRLEN];
+ char group_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin,
+ source_str, sizeof(source_str));
+ pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp,
+ group_str, sizeof(group_str));
+ zlog_debug(
+ "%s %s: could not find input interface(%d) for (S,G)=(%s,%s)",
+ __FILE__, __PRETTY_FUNCTION__,
+ c_oil->oil.mfcc_parent, source_str, group_str);
+ }
+ pim_mroute_del(c_oil, __PRETTY_FUNCTION__);
+ return;
+ }
+
+ if (input_iface_vif_index == c_oil->oil.mfcc_parent) {
+ if (!c_oil->installed)
+ pim_mroute_add(c_oil, __PRETTY_FUNCTION__);
+
+ /* RPF unchanged */
+ return;
+ }
+
+ if (PIM_DEBUG_ZEBRA) {
+ struct interface *old_iif =
+ pim_if_find_by_vif_index(c_oil->oil.mfcc_parent);
+ struct interface *new_iif =
+ pim_if_find_by_vif_index(input_iface_vif_index);
+ char source_str[INET_ADDRSTRLEN];
+ char group_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, source_str,
+ sizeof(source_str));
+ pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, group_str,
+ sizeof(group_str));
+ zlog_debug(
+ "%s %s: (S,G)=(%s,%s) input interface changed from %s vif_index=%d to %s vif_index=%d",
+ __FILE__, __PRETTY_FUNCTION__, source_str, group_str,
+ old_iif->name, c_oil->oil.mfcc_parent, new_iif->name,
+ input_iface_vif_index);
+ }
+
+ /* new iif loops to existing oif ? */
+ if (c_oil->oil.mfcc_ttls[input_iface_vif_index]) {
+ struct interface *new_iif =
+ pim_if_find_by_vif_index(input_iface_vif_index);
+
+ if (PIM_DEBUG_ZEBRA) {
+ char source_str[INET_ADDRSTRLEN];
+ char group_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin,
+ source_str, sizeof(source_str));
+ pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp,
+ group_str, sizeof(group_str));
+ zlog_debug(
+ "%s %s: (S,G)=(%s,%s) new iif loops to existing oif: %s vif_index=%d",
+ __FILE__, __PRETTY_FUNCTION__, source_str,
+ group_str, new_iif->name,
+ input_iface_vif_index);
+ }
+ }
+
+ /* update iif vif_index */
+ old_vif_index = c_oil->oil.mfcc_parent;
+ c_oil->oil.mfcc_parent = input_iface_vif_index;
+
+ /* update kernel multicast forwarding cache (MFC) */
+ if (pim_mroute_add(c_oil, __PRETTY_FUNCTION__)) {
+ if (PIM_DEBUG_MROUTE) {
+ /* just log warning */
+ struct interface *old_iif =
+ pim_if_find_by_vif_index(old_vif_index);
+ struct interface *new_iif =
+ pim_if_find_by_vif_index(input_iface_vif_index);
+ char source_str[INET_ADDRSTRLEN];
+ char group_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin,
+ source_str, sizeof(source_str));
+ pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp,
+ group_str, sizeof(group_str));
+ zlog_debug(
+ "%s %s: (S,G)=(%s,%s) failure updating input interface from %s vif_index=%d to %s vif_index=%d",
+ __FILE__, __PRETTY_FUNCTION__, source_str,
+ group_str,
+ old_iif ? old_iif->name : "<old_iif?>",
+ c_oil->oil.mfcc_parent,
+ new_iif ? new_iif->name : "<new_iif?>",
+ input_iface_vif_index);
+ }
+ }
}
void pim_scan_oil()
{
- struct listnode *node;
- struct listnode *nextnode;
- struct channel_oil *c_oil;
- ifindex_t ifindex;
- int vif_index = 0;
-
- qpim_scan_oil_last = pim_time_monotonic_sec();
- ++qpim_scan_oil_events;
-
- for (ALL_LIST_ELEMENTS(pim_channel_oil_list, node, nextnode, c_oil))
- {
- if (c_oil->up && c_oil->up->rpf.source_nexthop.interface)
- {
- ifindex = c_oil->up->rpf.source_nexthop.interface->ifindex;
- vif_index = pim_if_find_vifindex_by_ifindex (ifindex);
- /* Pass Current selected NH vif index to mroute download */
- if (vif_index)
- pim_scan_individual_oil (c_oil, vif_index);
- }
- else
- pim_scan_individual_oil (c_oil, 0);
- }
+ struct listnode *node;
+ struct listnode *nextnode;
+ struct channel_oil *c_oil;
+ ifindex_t ifindex;
+ int vif_index = 0;
+
+ qpim_scan_oil_last = pim_time_monotonic_sec();
+ ++qpim_scan_oil_events;
+
+ for (ALL_LIST_ELEMENTS(pim_channel_oil_list, node, nextnode, c_oil)) {
+ if (c_oil->up && c_oil->up->rpf.source_nexthop.interface) {
+ ifindex = c_oil->up->rpf.source_nexthop
+ .interface->ifindex;
+ vif_index = pim_if_find_vifindex_by_ifindex(ifindex);
+ /* Pass Current selected NH vif index to mroute download
+ */
+ if (vif_index)
+ pim_scan_individual_oil(c_oil, vif_index);
+ } else
+ pim_scan_individual_oil(c_oil, 0);
+ }
}
static int on_rpf_cache_refresh(struct thread *t)
{
- /* update PIM protocol state */
- scan_upstream_rpf_cache();
+ /* update PIM protocol state */
+ scan_upstream_rpf_cache();
- /* update kernel multicast forwarding cache (MFC) */
- pim_scan_oil();
+ /* update kernel multicast forwarding cache (MFC) */
+ pim_scan_oil();
- qpim_rpf_cache_refresh_last = pim_time_monotonic_sec();
- ++qpim_rpf_cache_refresh_events;
+ qpim_rpf_cache_refresh_last = pim_time_monotonic_sec();
+ ++qpim_rpf_cache_refresh_events;
- //It is called as part of pim_neighbor_add
- //pim_rp_setup ();
- return 0;
+ // It is called as part of pim_neighbor_add
+ // pim_rp_setup ();
+ return 0;
}
void sched_rpf_cache_refresh(void)
{
- ++qpim_rpf_cache_refresh_requests;
+ ++qpim_rpf_cache_refresh_requests;
- pim_rpf_set_refresh_time ();
+ pim_rpf_set_refresh_time();
- if (qpim_rpf_cache_refresher) {
- /* Refresh timer is already running */
- return;
- }
+ if (qpim_rpf_cache_refresher) {
+ /* Refresh timer is already running */
+ return;
+ }
- /* Start refresh timer */
+ /* Start refresh timer */
- if (PIM_DEBUG_ZEBRA) {
- zlog_debug("%s: triggering %ld msec timer",
- __PRETTY_FUNCTION__,
- qpim_rpf_cache_refresh_delay_msec);
- }
+ if (PIM_DEBUG_ZEBRA) {
+ zlog_debug("%s: triggering %ld msec timer", __PRETTY_FUNCTION__,
+ qpim_rpf_cache_refresh_delay_msec);
+ }
- thread_add_timer_msec(master, on_rpf_cache_refresh, 0,
- qpim_rpf_cache_refresh_delay_msec,
- &qpim_rpf_cache_refresher);
+ thread_add_timer_msec(master, on_rpf_cache_refresh, 0,
+ qpim_rpf_cache_refresh_delay_msec,
+ &qpim_rpf_cache_refresher);
}
-static void
-pim_zebra_connected (struct zclient *zclient)
+static void pim_zebra_connected(struct zclient *zclient)
{
- /* Send the client registration */
- bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER);
+ /* Send the client registration */
+ bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER);
- zclient_send_reg_requests (zclient, VRF_DEFAULT);
+ zclient_send_reg_requests(zclient, VRF_DEFAULT);
}
void pim_zebra_init(void)
{
- int i;
+ int i;
#ifdef HAVE_TCP_ZEBRA
- zlog_notice("zclient update contacting ZEBRA daemon at socket TCP %s,%d", "127.0.0.1", ZEBRA_PORT);
+ zlog_notice(
+ "zclient update contacting ZEBRA daemon at socket TCP %s,%d",
+ "127.0.0.1", ZEBRA_PORT);
#else
- zlog_notice("zclient update contacting ZEBRA daemon at socket UNIX %s", zclient_serv_path_get());
+ zlog_notice("zclient update contacting ZEBRA daemon at socket UNIX %s",
+ zclient_serv_path_get());
#endif
- /* Socket for receiving updates from Zebra daemon */
- zclient = zclient_new (master);
-
- zclient->zebra_connected = pim_zebra_connected;
- zclient->router_id_update = pim_router_id_update_zebra;
- zclient->interface_add = pim_zebra_if_add;
- zclient->interface_delete = pim_zebra_if_del;
- zclient->interface_up = pim_zebra_if_state_up;
- zclient->interface_down = pim_zebra_if_state_down;
- zclient->interface_address_add = pim_zebra_if_address_add;
- zclient->interface_address_delete = pim_zebra_if_address_del;
- zclient->nexthop_update = pim_parse_nexthop_update;
-
- zclient_init(zclient, ZEBRA_ROUTE_PIM, 0);
- if (PIM_DEBUG_PIM_TRACE) {
- zlog_info("zclient_init cleared redistribution request");
- }
-
- zassert(zclient->redist_default == ZEBRA_ROUTE_PIM);
-
- /* Request all redistribution */
- for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
- if (i == zclient->redist_default)
- continue;
- vrf_bitmap_set (zclient->redist[AFI_IP][i], VRF_DEFAULT);;
- if (PIM_DEBUG_PIM_TRACE) {
- zlog_debug("%s: requesting redistribution for %s (%i)",
- __PRETTY_FUNCTION__, zebra_route_string(i), i);
- }
- }
-
- /* Request default information */
- zclient_redistribute_default (ZEBRA_REDISTRIBUTE_DEFAULT_ADD,
- zclient, VRF_DEFAULT);
-
- if (PIM_DEBUG_PIM_TRACE) {
- zlog_info("%s: requesting default information redistribution",
- __PRETTY_FUNCTION__);
-
- zlog_notice("%s: zclient update socket initialized",
- __PRETTY_FUNCTION__);
- }
-
- zclient_lookup_new();
+ /* Socket for receiving updates from Zebra daemon */
+ zclient = zclient_new(master);
+
+ zclient->zebra_connected = pim_zebra_connected;
+ zclient->router_id_update = pim_router_id_update_zebra;
+ zclient->interface_add = pim_zebra_if_add;
+ zclient->interface_delete = pim_zebra_if_del;
+ zclient->interface_up = pim_zebra_if_state_up;
+ zclient->interface_down = pim_zebra_if_state_down;
+ zclient->interface_address_add = pim_zebra_if_address_add;
+ zclient->interface_address_delete = pim_zebra_if_address_del;
+ zclient->nexthop_update = pim_parse_nexthop_update;
+
+ zclient_init(zclient, ZEBRA_ROUTE_PIM, 0);
+ if (PIM_DEBUG_PIM_TRACE) {
+ zlog_info("zclient_init cleared redistribution request");
+ }
+
+ zassert(zclient->redist_default == ZEBRA_ROUTE_PIM);
+
+ /* Request all redistribution */
+ for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
+ if (i == zclient->redist_default)
+ continue;
+ vrf_bitmap_set(zclient->redist[AFI_IP][i], VRF_DEFAULT);
+ ;
+ if (PIM_DEBUG_PIM_TRACE) {
+ zlog_debug("%s: requesting redistribution for %s (%i)",
+ __PRETTY_FUNCTION__, zebra_route_string(i),
+ i);
+ }
+ }
+
+ /* Request default information */
+ zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_ADD, zclient,
+ VRF_DEFAULT);
+
+ if (PIM_DEBUG_PIM_TRACE) {
+ zlog_info("%s: requesting default information redistribution",
+ __PRETTY_FUNCTION__);
+
+ zlog_notice("%s: zclient update socket initialized",
+ __PRETTY_FUNCTION__);
+ }
+
+ zclient_lookup_new();
}
void igmp_anysource_forward_start(struct igmp_group *group)
{
- struct igmp_source *source;
- struct in_addr src_addr = { .s_addr = 0 };
- /* Any source (*,G) is forwarded only if mode is EXCLUDE {empty} */
- zassert(group->group_filtermode_isexcl);
- zassert(listcount(group->group_source_list) < 1);
-
- source = source_new (group, src_addr);
- if (!source)
- {
- zlog_warn ("%s: Failure to create * source", __PRETTY_FUNCTION__);
- return;
- }
-
- igmp_source_forward_start (source);
+ struct igmp_source *source;
+ struct in_addr src_addr = {.s_addr = 0};
+ /* Any source (*,G) is forwarded only if mode is EXCLUDE {empty} */
+ zassert(group->group_filtermode_isexcl);
+ zassert(listcount(group->group_source_list) < 1);
+
+ source = source_new(group, src_addr);
+ if (!source) {
+ zlog_warn("%s: Failure to create * source",
+ __PRETTY_FUNCTION__);
+ return;
+ }
+
+ igmp_source_forward_start(source);
}
void igmp_anysource_forward_stop(struct igmp_group *group)
{
- struct igmp_source *source;
- struct in_addr star = { .s_addr = 0 };
+ struct igmp_source *source;
+ struct in_addr star = {.s_addr = 0};
- source = igmp_find_source_by_addr (group, star);
- if (source)
- igmp_source_forward_stop (source);
+ source = igmp_find_source_by_addr(group, star);
+ if (source)
+ igmp_source_forward_stop(source);
}
-static void
-igmp_source_forward_reevaluate_one(struct igmp_source *source)
+static void igmp_source_forward_reevaluate_one(struct igmp_source *source)
{
- struct prefix_sg sg;
- struct igmp_group *group = source->source_group;
- struct pim_ifchannel *ch;
-
- if ((source->source_addr.s_addr != INADDR_ANY) ||
- !IGMP_SOURCE_TEST_FORWARDING (source->source_flags))
- return;
-
- memset (&sg, 0, sizeof (struct prefix_sg));
- sg.src = source->source_addr;
- sg.grp = group->group_addr;
-
- ch = pim_ifchannel_find (group->group_igmp_sock->interface, &sg);
- if (pim_is_grp_ssm (group->group_addr))
- {
- /* If SSM group withdraw local membership */
- if (ch && (ch->local_ifmembership == PIM_IFMEMBERSHIP_INCLUDE))
- {
- if (PIM_DEBUG_PIM_EVENTS)
- zlog_debug ("local membership del for %s as G is now SSM",
- pim_str_sg_dump (&sg));
- pim_ifchannel_local_membership_del (group->group_igmp_sock->interface, &sg);
- }
- }
- else
- {
- /* If ASM group add local membership */
- if (!ch || (ch->local_ifmembership == PIM_IFMEMBERSHIP_NOINFO))
- {
- if (PIM_DEBUG_PIM_EVENTS)
- zlog_debug ("local membership add for %s as G is now ASM",
- pim_str_sg_dump (&sg));
- pim_ifchannel_local_membership_add (group->group_igmp_sock->interface, &sg);
- }
- }
+ struct prefix_sg sg;
+ struct igmp_group *group = source->source_group;
+ struct pim_ifchannel *ch;
+
+ if ((source->source_addr.s_addr != INADDR_ANY)
+ || !IGMP_SOURCE_TEST_FORWARDING(source->source_flags))
+ return;
+
+ memset(&sg, 0, sizeof(struct prefix_sg));
+ sg.src = source->source_addr;
+ sg.grp = group->group_addr;
+
+ ch = pim_ifchannel_find(group->group_igmp_sock->interface, &sg);
+ if (pim_is_grp_ssm(group->group_addr)) {
+ /* If SSM group withdraw local membership */
+ if (ch
+ && (ch->local_ifmembership == PIM_IFMEMBERSHIP_INCLUDE)) {
+ if (PIM_DEBUG_PIM_EVENTS)
+ zlog_debug(
+ "local membership del for %s as G is now SSM",
+ pim_str_sg_dump(&sg));
+ pim_ifchannel_local_membership_del(
+ group->group_igmp_sock->interface, &sg);
+ }
+ } else {
+ /* If ASM group add local membership */
+ if (!ch
+ || (ch->local_ifmembership == PIM_IFMEMBERSHIP_NOINFO)) {
+ if (PIM_DEBUG_PIM_EVENTS)
+ zlog_debug(
+ "local membership add for %s as G is now ASM",
+ pim_str_sg_dump(&sg));
+ pim_ifchannel_local_membership_add(
+ group->group_igmp_sock->interface, &sg);
+ }
+ }
}
-void
-igmp_source_forward_reevaluate_all(void)
+void igmp_source_forward_reevaluate_all(void)
{
- struct listnode *ifnode;
- struct interface *ifp;
-
- for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), ifnode, ifp))
- {
- struct pim_interface *pim_ifp = ifp->info;
- struct listnode *sock_node;
- struct igmp_sock *igmp;
-
- if (!pim_ifp)
- continue;
-
- /* scan igmp sockets */
- for (ALL_LIST_ELEMENTS_RO (pim_ifp->igmp_socket_list, sock_node, igmp))
- {
- struct listnode *grpnode;
- struct igmp_group *grp;
-
- /* scan igmp groups */
- for (ALL_LIST_ELEMENTS_RO (igmp->igmp_group_list, grpnode, grp))
- {
- struct listnode *srcnode;
- struct igmp_source *src;
-
- /* scan group sources */
- for (ALL_LIST_ELEMENTS_RO (grp->group_source_list,
- srcnode, src))
- {
- igmp_source_forward_reevaluate_one (src);
- } /* scan group sources */
- } /* scan igmp groups */
- } /* scan igmp sockets */
- } /* scan interfaces */
+ struct listnode *ifnode;
+ struct interface *ifp;
+
+ for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), ifnode, ifp)) {
+ struct pim_interface *pim_ifp = ifp->info;
+ struct listnode *sock_node;
+ struct igmp_sock *igmp;
+
+ if (!pim_ifp)
+ continue;
+
+ /* scan igmp sockets */
+ for (ALL_LIST_ELEMENTS_RO(pim_ifp->igmp_socket_list, sock_node,
+ igmp)) {
+ struct listnode *grpnode;
+ struct igmp_group *grp;
+
+ /* scan igmp groups */
+ for (ALL_LIST_ELEMENTS_RO(igmp->igmp_group_list,
+ grpnode, grp)) {
+ struct listnode *srcnode;
+ struct igmp_source *src;
+
+ /* scan group sources */
+ for (ALL_LIST_ELEMENTS_RO(
+ grp->group_source_list, srcnode,
+ src)) {
+ igmp_source_forward_reevaluate_one(src);
+ } /* scan group sources */
+ } /* scan igmp groups */
+ } /* scan igmp sockets */
+ } /* scan interfaces */
}
void igmp_source_forward_start(struct igmp_source *source)
{
- struct igmp_group *group;
- struct prefix_sg sg;
- int result;
- int input_iface_vif_index = 0;
-
- memset (&sg, 0, sizeof (struct prefix_sg));
- sg.src = source->source_addr;
- sg.grp = source->source_group->group_addr;
-
- if (PIM_DEBUG_IGMP_TRACE) {
- zlog_debug("%s: (S,G)=%s igmp_sock=%d oif=%s fwd=%d",
- __PRETTY_FUNCTION__,
- pim_str_sg_dump (&sg),
- source->source_group->group_igmp_sock->fd,
- source->source_group->group_igmp_sock->interface->name,
- IGMP_SOURCE_TEST_FORWARDING(source->source_flags));
- }
-
- /* Prevent IGMP interface from installing multicast route multiple
- times */
- if (IGMP_SOURCE_TEST_FORWARDING(source->source_flags)) {
- return;
- }
-
- group = source->source_group;
-
- if (!source->source_channel_oil) {
- struct in_addr vif_source;
- struct pim_interface *pim_oif;
- struct prefix nht_p, src, grp;
- int ret = 0;
- struct pim_nexthop_cache out_pnc;
- struct pim_nexthop nexthop;
- struct pim_upstream *up = NULL;
-
- if (!pim_rp_set_upstream_addr (&vif_source, source->source_addr, sg.grp))
- return;
-
- /* Register addr with Zebra NHT */
- nht_p.family = AF_INET;
- nht_p.prefixlen = IPV4_MAX_BITLEN;
- nht_p.u.prefix4 = vif_source;
- memset (&out_pnc, 0, sizeof (struct pim_nexthop_cache));
-
- src.family = AF_INET;
- src.prefixlen = IPV4_MAX_BITLEN;
- src.u.prefix4 = vif_source; //RP or Src address
- grp.family = AF_INET;
- grp.prefixlen = IPV4_MAX_BITLEN;
- grp.u.prefix4 = sg.grp;
-
- if ((ret = pim_find_or_track_nexthop (&nht_p, NULL, NULL, &out_pnc)) == 1)
- {
- if (out_pnc.nexthop_num)
- {
- up = pim_upstream_find (&sg);
- memset (&nexthop, 0, sizeof (struct pim_nexthop));
- if (up)
- memcpy (&nexthop, &up->rpf.source_nexthop, sizeof (struct pim_nexthop));
- //Compute PIM RPF using Cached nexthop
- pim_ecmp_nexthop_search (&out_pnc, &nexthop, &src, &grp, 0);
- if (nexthop.interface)
- input_iface_vif_index = pim_if_find_vifindex_by_ifindex (nexthop.interface->ifindex);
- }
- else
- {
- if (PIM_DEBUG_ZEBRA)
- {
- char buf1[INET_ADDRSTRLEN];
- char buf2[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", nht_p.u.prefix4, buf1, sizeof(buf1));
- pim_inet4_dump("<source?>", grp.u.prefix4, buf2, sizeof(buf2));
- zlog_debug ("%s: NHT Nexthop not found for addr %s grp %s" ,
- __PRETTY_FUNCTION__, buf1, buf2);
- }
- }
- }
- else
- input_iface_vif_index = pim_ecmp_fib_lookup_if_vif_index(vif_source, &src, &grp);
-
- if (PIM_DEBUG_ZEBRA)
- {
- char buf2[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", vif_source, buf2, sizeof(buf2));
- zlog_debug ("%s: NHT %s vif_source %s vif_index:%d ", __PRETTY_FUNCTION__,
- pim_str_sg_dump (&sg), buf2, input_iface_vif_index);
- }
-
- if (input_iface_vif_index < 1) {
- if (PIM_DEBUG_IGMP_TRACE)
- {
- char source_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", source->source_addr, source_str, sizeof(source_str));
- zlog_debug("%s %s: could not find input interface for source %s",
- __FILE__, __PRETTY_FUNCTION__,
- source_str);
+ struct igmp_group *group;
+ struct prefix_sg sg;
+ int result;
+ int input_iface_vif_index = 0;
+
+ memset(&sg, 0, sizeof(struct prefix_sg));
+ sg.src = source->source_addr;
+ sg.grp = source->source_group->group_addr;
+
+ if (PIM_DEBUG_IGMP_TRACE) {
+ zlog_debug(
+ "%s: (S,G)=%s igmp_sock=%d oif=%s fwd=%d",
+ __PRETTY_FUNCTION__, pim_str_sg_dump(&sg),
+ source->source_group->group_igmp_sock->fd,
+ source->source_group->group_igmp_sock->interface->name,
+ IGMP_SOURCE_TEST_FORWARDING(source->source_flags));
+ }
+
+ /* Prevent IGMP interface from installing multicast route multiple
+ times */
+ if (IGMP_SOURCE_TEST_FORWARDING(source->source_flags)) {
+ return;
}
- return;
- }
-
- /*
- Protect IGMP against adding looped MFC entries created by both
- source and receiver attached to the same interface. See TODO
- T22.
- */
- pim_oif = source->source_group->group_igmp_sock->interface->info;
- if (!pim_oif) {
- if (PIM_DEBUG_IGMP_TRACE)
- {
- zlog_debug("%s: multicast not enabled on oif=%s ?",
- __PRETTY_FUNCTION__,
- source->source_group->group_igmp_sock->interface->name);
+
+ group = source->source_group;
+
+ if (!source->source_channel_oil) {
+ struct in_addr vif_source;
+ struct pim_interface *pim_oif;
+ struct prefix nht_p, src, grp;
+ int ret = 0;
+ struct pim_nexthop_cache out_pnc;
+ struct pim_nexthop nexthop;
+ struct pim_upstream *up = NULL;
+
+ if (!pim_rp_set_upstream_addr(&vif_source, source->source_addr,
+ sg.grp))
+ return;
+
+ /* Register addr with Zebra NHT */
+ nht_p.family = AF_INET;
+ nht_p.prefixlen = IPV4_MAX_BITLEN;
+ nht_p.u.prefix4 = vif_source;
+ memset(&out_pnc, 0, sizeof(struct pim_nexthop_cache));
+
+ src.family = AF_INET;
+ src.prefixlen = IPV4_MAX_BITLEN;
+ src.u.prefix4 = vif_source; // RP or Src address
+ grp.family = AF_INET;
+ grp.prefixlen = IPV4_MAX_BITLEN;
+ grp.u.prefix4 = sg.grp;
+
+ if ((ret = pim_find_or_track_nexthop(&nht_p, NULL, NULL,
+ &out_pnc))
+ == 1) {
+ if (out_pnc.nexthop_num) {
+ up = pim_upstream_find(&sg);
+ memset(&nexthop, 0, sizeof(struct pim_nexthop));
+ if (up)
+ memcpy(&nexthop,
+ &up->rpf.source_nexthop,
+ sizeof(struct pim_nexthop));
+ // Compute PIM RPF using Cached nexthop
+ pim_ecmp_nexthop_search(&out_pnc, &nexthop,
+ &src, &grp, 0);
+ if (nexthop.interface)
+ input_iface_vif_index =
+ pim_if_find_vifindex_by_ifindex(
+ nexthop.interface->ifindex);
+ } else {
+ if (PIM_DEBUG_ZEBRA) {
+ char buf1[INET_ADDRSTRLEN];
+ char buf2[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>",
+ nht_p.u.prefix4, buf1,
+ sizeof(buf1));
+ pim_inet4_dump("<source?>",
+ grp.u.prefix4, buf2,
+ sizeof(buf2));
+ zlog_debug(
+ "%s: NHT Nexthop not found for addr %s grp %s",
+ __PRETTY_FUNCTION__, buf1,
+ buf2);
+ }
+ }
+ } else
+ input_iface_vif_index =
+ pim_ecmp_fib_lookup_if_vif_index(vif_source,
+ &src, &grp);
+
+ if (PIM_DEBUG_ZEBRA) {
+ char buf2[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", vif_source, buf2,
+ sizeof(buf2));
+ zlog_debug("%s: NHT %s vif_source %s vif_index:%d ",
+ __PRETTY_FUNCTION__, pim_str_sg_dump(&sg),
+ buf2, input_iface_vif_index);
+ }
+
+ if (input_iface_vif_index < 1) {
+ if (PIM_DEBUG_IGMP_TRACE) {
+ char source_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", source->source_addr,
+ source_str, sizeof(source_str));
+ zlog_debug(
+ "%s %s: could not find input interface for source %s",
+ __FILE__, __PRETTY_FUNCTION__,
+ source_str);
+ }
+ return;
+ }
+
+ /*
+ Protect IGMP against adding looped MFC entries created by both
+ source and receiver attached to the same interface. See TODO
+ T22.
+ */
+ pim_oif =
+ source->source_group->group_igmp_sock->interface->info;
+ if (!pim_oif) {
+ if (PIM_DEBUG_IGMP_TRACE) {
+ zlog_debug(
+ "%s: multicast not enabled on oif=%s ?",
+ __PRETTY_FUNCTION__,
+ source->source_group->group_igmp_sock
+ ->interface->name);
+ }
+ return;
+ }
+
+ if (input_iface_vif_index == pim_oif->mroute_vif_index) {
+ /* ignore request for looped MFC entry */
+ if (PIM_DEBUG_IGMP_TRACE) {
+ zlog_debug(
+ "%s: ignoring request for looped MFC entry (S,G)=%s: igmp_sock=%d oif=%s vif_index=%d",
+ __PRETTY_FUNCTION__,
+ pim_str_sg_dump(&sg),
+ source->source_group->group_igmp_sock
+ ->fd,
+ source->source_group->group_igmp_sock
+ ->interface->name,
+ input_iface_vif_index);
+ }
+ return;
+ }
+
+ source->source_channel_oil =
+ pim_channel_oil_add(&sg, input_iface_vif_index);
+ if (!source->source_channel_oil) {
+ if (PIM_DEBUG_IGMP_TRACE) {
+ zlog_debug(
+ "%s %s: could not create OIL for channel (S,G)=%s",
+ __FILE__, __PRETTY_FUNCTION__,
+ pim_str_sg_dump(&sg));
+ }
+ return;
+ }
}
- return;
- }
-
- if (input_iface_vif_index == pim_oif->mroute_vif_index) {
- /* ignore request for looped MFC entry */
- if (PIM_DEBUG_IGMP_TRACE) {
- zlog_debug("%s: ignoring request for looped MFC entry (S,G)=%s: igmp_sock=%d oif=%s vif_index=%d",
- __PRETTY_FUNCTION__,
- pim_str_sg_dump (&sg),
- source->source_group->group_igmp_sock->fd,
- source->source_group->group_igmp_sock->interface->name,
- input_iface_vif_index);
- }
- return;
- }
-
- source->source_channel_oil = pim_channel_oil_add(&sg,
- input_iface_vif_index);
- if (!source->source_channel_oil) {
- if (PIM_DEBUG_IGMP_TRACE)
- {
- zlog_debug("%s %s: could not create OIL for channel (S,G)=%s",
- __FILE__, __PRETTY_FUNCTION__,
- pim_str_sg_dump (&sg));
+
+ result = pim_channel_add_oif(source->source_channel_oil,
+ group->group_igmp_sock->interface,
+ PIM_OIF_FLAG_PROTO_IGMP);
+ if (result) {
+ if (PIM_DEBUG_MROUTE) {
+ zlog_warn("%s: add_oif() failed with return=%d",
+ __func__, result);
+ }
+ return;
}
- return;
- }
- }
-
- result = pim_channel_add_oif(source->source_channel_oil,
- group->group_igmp_sock->interface,
- PIM_OIF_FLAG_PROTO_IGMP);
- if (result) {
- if (PIM_DEBUG_MROUTE)
- {
- zlog_warn("%s: add_oif() failed with return=%d",
- __func__, result);
- }
- return;
- }
-
- /*
- Feed IGMPv3-gathered local membership information into PIM
- per-interface (S,G) state.
- */
- if (!pim_ifchannel_local_membership_add(group->group_igmp_sock->interface, &sg))
- {
- if (PIM_DEBUG_MROUTE)
- zlog_warn ("%s: Failure to add local membership for %s",
- __PRETTY_FUNCTION__, pim_str_sg_dump (&sg));
- return;
- }
-
- IGMP_SOURCE_DO_FORWARDING(source->source_flags);
+
+ /*
+ Feed IGMPv3-gathered local membership information into PIM
+ per-interface (S,G) state.
+ */
+ if (!pim_ifchannel_local_membership_add(
+ group->group_igmp_sock->interface, &sg)) {
+ if (PIM_DEBUG_MROUTE)
+ zlog_warn("%s: Failure to add local membership for %s",
+ __PRETTY_FUNCTION__, pim_str_sg_dump(&sg));
+ return;
+ }
+
+ IGMP_SOURCE_DO_FORWARDING(source->source_flags);
}
/*
*/
void igmp_source_forward_stop(struct igmp_source *source)
{
- struct igmp_group *group;
- struct prefix_sg sg;
- int result;
-
- memset (&sg, 0, sizeof (struct prefix_sg));
- sg.src = source->source_addr;
- sg.grp = source->source_group->group_addr;
-
- if (PIM_DEBUG_IGMP_TRACE) {
- zlog_debug("%s: (S,G)=%s igmp_sock=%d oif=%s fwd=%d",
- __PRETTY_FUNCTION__,
- pim_str_sg_dump (&sg),
- source->source_group->group_igmp_sock->fd,
- source->source_group->group_igmp_sock->interface->name,
- IGMP_SOURCE_TEST_FORWARDING(source->source_flags));
- }
-
- /* Prevent IGMP interface from removing multicast route multiple
- times */
- if (!IGMP_SOURCE_TEST_FORWARDING(source->source_flags)) {
- return;
- }
-
- group = source->source_group;
-
- /*
- It appears that in certain circumstances that
- igmp_source_forward_stop is called when IGMP forwarding
- was not enabled in oif_flags for this outgoing interface.
- Possibly because of multiple calls. When that happens, we
- enter the below if statement and this function returns early
- which in turn triggers the calling function to assert.
- Making the call to pim_channel_del_oif and ignoring the return code
- fixes the issue without ill effect, similar to
- pim_forward_stop below.
- */
- result = pim_channel_del_oif(source->source_channel_oil,
- group->group_igmp_sock->interface,
- PIM_OIF_FLAG_PROTO_IGMP);
- if (result) {
- if (PIM_DEBUG_IGMP_TRACE)
- zlog_debug("%s: pim_channel_del_oif() failed with return=%d",
- __func__, result);
- return;
- }
-
- /*
- Feed IGMPv3-gathered local membership information into PIM
- per-interface (S,G) state.
- */
- pim_ifchannel_local_membership_del(group->group_igmp_sock->interface,
- &sg);
-
- IGMP_SOURCE_DONT_FORWARDING(source->source_flags);
+ struct igmp_group *group;
+ struct prefix_sg sg;
+ int result;
+
+ memset(&sg, 0, sizeof(struct prefix_sg));
+ sg.src = source->source_addr;
+ sg.grp = source->source_group->group_addr;
+
+ if (PIM_DEBUG_IGMP_TRACE) {
+ zlog_debug(
+ "%s: (S,G)=%s igmp_sock=%d oif=%s fwd=%d",
+ __PRETTY_FUNCTION__, pim_str_sg_dump(&sg),
+ source->source_group->group_igmp_sock->fd,
+ source->source_group->group_igmp_sock->interface->name,
+ IGMP_SOURCE_TEST_FORWARDING(source->source_flags));
+ }
+
+ /* Prevent IGMP interface from removing multicast route multiple
+ times */
+ if (!IGMP_SOURCE_TEST_FORWARDING(source->source_flags)) {
+ return;
+ }
+
+ group = source->source_group;
+
+ /*
+ It appears that in certain circumstances that
+ igmp_source_forward_stop is called when IGMP forwarding
+ was not enabled in oif_flags for this outgoing interface.
+ Possibly because of multiple calls. When that happens, we
+ enter the below if statement and this function returns early
+ which in turn triggers the calling function to assert.
+ Making the call to pim_channel_del_oif and ignoring the return code
+ fixes the issue without ill effect, similar to
+ pim_forward_stop below.
+ */
+ result = pim_channel_del_oif(source->source_channel_oil,
+ group->group_igmp_sock->interface,
+ PIM_OIF_FLAG_PROTO_IGMP);
+ if (result) {
+ if (PIM_DEBUG_IGMP_TRACE)
+ zlog_debug(
+ "%s: pim_channel_del_oif() failed with return=%d",
+ __func__, result);
+ return;
+ }
+
+ /*
+ Feed IGMPv3-gathered local membership information into PIM
+ per-interface (S,G) state.
+ */
+ pim_ifchannel_local_membership_del(group->group_igmp_sock->interface,
+ &sg);
+
+ IGMP_SOURCE_DONT_FORWARDING(source->source_flags);
}
void pim_forward_start(struct pim_ifchannel *ch)
{
- struct pim_upstream *up = ch->upstream;
- uint32_t mask = PIM_OIF_FLAG_PROTO_PIM;
- int input_iface_vif_index = 0;
-
- if (PIM_DEBUG_PIM_TRACE) {
- char source_str[INET_ADDRSTRLEN];
- char group_str[INET_ADDRSTRLEN];
- char upstream_str[INET_ADDRSTRLEN];
-
- pim_inet4_dump("<source?>", ch->sg.src, source_str, sizeof(source_str));
- pim_inet4_dump("<group?>", ch->sg.grp, group_str, sizeof(group_str));
- pim_inet4_dump("<upstream?>", up->upstream_addr, upstream_str, sizeof(upstream_str));
- zlog_debug("%s: (S,G)=(%s,%s) oif=%s (%s)",
- __PRETTY_FUNCTION__,
- source_str, group_str, ch->interface->name, upstream_str);
- }
-
- /* Resolve IIF for upstream as mroute_del sets mfcc_parent to MAXVIFS,
- as part of mroute_del called by pim_forward_stop.
- */
- if (!up->channel_oil ||
- (up->channel_oil && up->channel_oil->oil.mfcc_parent >= MAXVIFS))
- {
- struct prefix nht_p, src, grp;
- int ret = 0;
- struct pim_nexthop_cache out_pnc;
-
- /* Register addr with Zebra NHT */
- nht_p.family = AF_INET;
- nht_p.prefixlen = IPV4_MAX_BITLEN;
- nht_p.u.prefix4.s_addr = up->upstream_addr.s_addr;
- grp.family = AF_INET;
- grp.prefixlen = IPV4_MAX_BITLEN;
- grp.u.prefix4 = up->sg.grp;
- memset (&out_pnc, 0, sizeof (struct pim_nexthop_cache));
-
- if ((ret = pim_find_or_track_nexthop (&nht_p, NULL, NULL, &out_pnc)) == 1)
- {
- if (out_pnc.nexthop_num)
- {
- src.family = AF_INET;
- src.prefixlen = IPV4_MAX_BITLEN;
- src.u.prefix4 = up->upstream_addr; //RP or Src address
- grp.family = AF_INET;
- grp.prefixlen = IPV4_MAX_BITLEN;
- grp.u.prefix4 = up->sg.grp;
- //Compute PIM RPF using Cached nexthop
- if (pim_ecmp_nexthop_search (&out_pnc, &up->rpf.source_nexthop, &src, &grp, 0) == 0)
- input_iface_vif_index = pim_if_find_vifindex_by_ifindex (up->rpf.source_nexthop.interface->ifindex);
- else
- {
- if (PIM_DEBUG_TRACE)
- zlog_debug ("%s: Nexthop selection failed for %s ", __PRETTY_FUNCTION__, up->sg_str);
- }
- }
- else
- {
- if (PIM_DEBUG_ZEBRA)
- {
- char buf1[INET_ADDRSTRLEN];
- char buf2[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", nht_p.u.prefix4, buf1, sizeof(buf1));
- pim_inet4_dump("<source?>", grp.u.prefix4, buf2, sizeof(buf2));
- zlog_debug ("%s: NHT pnc is NULL for addr %s grp %s" ,
- __PRETTY_FUNCTION__, buf1, buf2);
- }
- }
- }
- else
- input_iface_vif_index = pim_ecmp_fib_lookup_if_vif_index(up->upstream_addr, &src, &grp);
-
- if (input_iface_vif_index < 1)
- {
- if (PIM_DEBUG_PIM_TRACE)
- {
- char source_str[INET_ADDRSTRLEN];
- pim_inet4_dump("<source?>", up->sg.src, source_str, sizeof(source_str));
- zlog_debug("%s %s: could not find input interface for source %s",
- __FILE__, __PRETTY_FUNCTION__,
- source_str);
- }
- return;
- }
- if (PIM_DEBUG_TRACE)
- {
- struct interface *in_intf = pim_if_find_by_vif_index (input_iface_vif_index);
- zlog_debug ("%s: Update channel_oil IIF %s VIFI %d entry %s ",
- __PRETTY_FUNCTION__, in_intf ? in_intf->name : "NIL",
- input_iface_vif_index, up->sg_str);
- }
- up->channel_oil = pim_channel_oil_add (&up->sg, input_iface_vif_index);
- if (!up->channel_oil)
- {
- if (PIM_DEBUG_PIM_TRACE)
- zlog_debug ("%s %s: could not create OIL for channel (S,G)=%s",
- __FILE__, __PRETTY_FUNCTION__, up->sg_str);
- return;
- }
- }
-
- if (up->flags & PIM_UPSTREAM_FLAG_MASK_SRC_IGMP)
- mask = PIM_OIF_FLAG_PROTO_IGMP;
-
- pim_channel_add_oif (up->channel_oil, ch->interface, mask);
+ struct pim_upstream *up = ch->upstream;
+ uint32_t mask = PIM_OIF_FLAG_PROTO_PIM;
+ int input_iface_vif_index = 0;
+
+ if (PIM_DEBUG_PIM_TRACE) {
+ char source_str[INET_ADDRSTRLEN];
+ char group_str[INET_ADDRSTRLEN];
+ char upstream_str[INET_ADDRSTRLEN];
+
+ pim_inet4_dump("<source?>", ch->sg.src, source_str,
+ sizeof(source_str));
+ pim_inet4_dump("<group?>", ch->sg.grp, group_str,
+ sizeof(group_str));
+ pim_inet4_dump("<upstream?>", up->upstream_addr, upstream_str,
+ sizeof(upstream_str));
+ zlog_debug("%s: (S,G)=(%s,%s) oif=%s (%s)", __PRETTY_FUNCTION__,
+ source_str, group_str, ch->interface->name,
+ upstream_str);
+ }
+
+ /* Resolve IIF for upstream as mroute_del sets mfcc_parent to MAXVIFS,
+ as part of mroute_del called by pim_forward_stop.
+ */
+ if (!up->channel_oil
+ || (up->channel_oil
+ && up->channel_oil->oil.mfcc_parent >= MAXVIFS)) {
+ struct prefix nht_p, src, grp;
+ int ret = 0;
+ struct pim_nexthop_cache out_pnc;
+
+ /* Register addr with Zebra NHT */
+ nht_p.family = AF_INET;
+ nht_p.prefixlen = IPV4_MAX_BITLEN;
+ nht_p.u.prefix4.s_addr = up->upstream_addr.s_addr;
+ grp.family = AF_INET;
+ grp.prefixlen = IPV4_MAX_BITLEN;
+ grp.u.prefix4 = up->sg.grp;
+ memset(&out_pnc, 0, sizeof(struct pim_nexthop_cache));
+
+ if ((ret = pim_find_or_track_nexthop(&nht_p, NULL, NULL,
+ &out_pnc))
+ == 1) {
+ if (out_pnc.nexthop_num) {
+ src.family = AF_INET;
+ src.prefixlen = IPV4_MAX_BITLEN;
+ src.u.prefix4 =
+ up->upstream_addr; // RP or Src address
+ grp.family = AF_INET;
+ grp.prefixlen = IPV4_MAX_BITLEN;
+ grp.u.prefix4 = up->sg.grp;
+ // Compute PIM RPF using Cached nexthop
+ if (pim_ecmp_nexthop_search(
+ &out_pnc, &up->rpf.source_nexthop,
+ &src, &grp, 0)
+ == 0)
+ input_iface_vif_index =
+ pim_if_find_vifindex_by_ifindex(
+ up->rpf.source_nexthop
+ .interface->ifindex);
+ else {
+ if (PIM_DEBUG_TRACE)
+ zlog_debug(
+ "%s: Nexthop selection failed for %s ",
+ __PRETTY_FUNCTION__,
+ up->sg_str);
+ }
+ } else {
+ if (PIM_DEBUG_ZEBRA) {
+ char buf1[INET_ADDRSTRLEN];
+ char buf2[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>",
+ nht_p.u.prefix4, buf1,
+ sizeof(buf1));
+ pim_inet4_dump("<source?>",
+ grp.u.prefix4, buf2,
+ sizeof(buf2));
+ zlog_debug(
+ "%s: NHT pnc is NULL for addr %s grp %s",
+ __PRETTY_FUNCTION__, buf1,
+ buf2);
+ }
+ }
+ } else
+ input_iface_vif_index =
+ pim_ecmp_fib_lookup_if_vif_index(
+ up->upstream_addr, &src, &grp);
+
+ if (input_iface_vif_index < 1) {
+ if (PIM_DEBUG_PIM_TRACE) {
+ char source_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<source?>", up->sg.src,
+ source_str, sizeof(source_str));
+ zlog_debug(
+ "%s %s: could not find input interface for source %s",
+ __FILE__, __PRETTY_FUNCTION__,
+ source_str);
+ }
+ return;
+ }
+ if (PIM_DEBUG_TRACE) {
+ struct interface *in_intf =
+ pim_if_find_by_vif_index(input_iface_vif_index);
+ zlog_debug(
+ "%s: Update channel_oil IIF %s VIFI %d entry %s ",
+ __PRETTY_FUNCTION__,
+ in_intf ? in_intf->name : "NIL",
+ input_iface_vif_index, up->sg_str);
+ }
+ up->channel_oil =
+ pim_channel_oil_add(&up->sg, input_iface_vif_index);
+ if (!up->channel_oil) {
+ if (PIM_DEBUG_PIM_TRACE)
+ zlog_debug(
+ "%s %s: could not create OIL for channel (S,G)=%s",
+ __FILE__, __PRETTY_FUNCTION__,
+ up->sg_str);
+ return;
+ }
+ }
+
+ if (up->flags & PIM_UPSTREAM_FLAG_MASK_SRC_IGMP)
+ mask = PIM_OIF_FLAG_PROTO_IGMP;
+
+ pim_channel_add_oif(up->channel_oil, ch->interface, mask);
}
void pim_forward_stop(struct pim_ifchannel *ch)
{
- struct pim_upstream *up = ch->upstream;
+ struct pim_upstream *up = ch->upstream;
- if (PIM_DEBUG_PIM_TRACE) {
- zlog_debug("%s: (S,G)=%s oif=%s",
- __PRETTY_FUNCTION__,
- ch->sg_str, ch->interface->name);
- }
+ if (PIM_DEBUG_PIM_TRACE) {
+ zlog_debug("%s: (S,G)=%s oif=%s", __PRETTY_FUNCTION__,
+ ch->sg_str, ch->interface->name);
+ }
- pim_channel_del_oif(up->channel_oil,
- ch->interface,
- PIM_OIF_FLAG_PROTO_PIM);
+ pim_channel_del_oif(up->channel_oil, ch->interface,
+ PIM_OIF_FLAG_PROTO_PIM);
}
-void
-pim_zebra_zclient_update (struct vty *vty)
+void pim_zebra_zclient_update(struct vty *vty)
{
- vty_out(vty, "Zclient update socket: ");
-
- if (zclient) {
- vty_out (vty, "%d failures=%d\n", zclient->sock,
- zclient->fail);
- }
- else {
- vty_out (vty, "<null zclient>\n");
- }
+ vty_out(vty, "Zclient update socket: ");
+
+ if (zclient) {
+ vty_out(vty, "%d failures=%d\n", zclient->sock, zclient->fail);
+ } else {
+ vty_out(vty, "<null zclient>\n");
+ }
}
-struct zclient *pim_zebra_zclient_get (void)
+struct zclient *pim_zebra_zclient_get(void)
{
- if (zclient)
- return zclient;
- else
- return NULL;
+ if (zclient)
+ return zclient;
+ else
+ return NULL;
}
projects / mirror_frr.git / blobdiff