3 * Copyright (C) 2008 Everton da Silva Marques
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; see the file COPYING; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
33 #include "pim_iface.h"
34 #include "pim_ifchannel.h"
35 #include "pim_zebra.h"
41 #include "pim_macro.h"
43 #include "pim_upstream.h"
48 RB_GENERATE(pim_ifchannel_rb
, pim_ifchannel
, pim_ifp_rb
, pim_ifchannel_compare
);
50 int pim_ifchannel_compare(const struct pim_ifchannel
*ch1
,
51 const struct pim_ifchannel
*ch2
)
53 struct pim_interface
*pim_ifp1
;
54 struct pim_interface
*pim_ifp2
;
56 pim_ifp1
= ch1
->interface
->info
;
57 pim_ifp2
= ch2
->interface
->info
;
59 if (pim_ifp1
->mroute_vif_index
< pim_ifp2
->mroute_vif_index
)
62 if (pim_ifp1
->mroute_vif_index
> pim_ifp2
->mroute_vif_index
)
65 if (ntohl(ch1
->sg
.grp
.s_addr
) < ntohl(ch2
->sg
.grp
.s_addr
))
68 if (ntohl(ch1
->sg
.grp
.s_addr
) > ntohl(ch2
->sg
.grp
.s_addr
))
71 if (ntohl(ch1
->sg
.src
.s_addr
) < ntohl(ch2
->sg
.src
.s_addr
))
74 if (ntohl(ch1
->sg
.src
.s_addr
) > ntohl(ch2
->sg
.src
.s_addr
))
81 * A (*,G) or a (*,*) is going away
82 * remove the parent pointer from
83 * those pointing at us
85 static void pim_ifchannel_remove_children(struct pim_ifchannel
*ch
)
87 struct pim_ifchannel
*child
;
92 while (!list_isempty(ch
->sources
)) {
93 child
= listnode_head(ch
->sources
);
95 listnode_delete(ch
->sources
, child
);
100 * A (*,G) or a (*,*) is being created
101 * find all the children that would point
104 static void pim_ifchannel_find_new_children(struct pim_ifchannel
*ch
)
106 struct pim_interface
*pim_ifp
= ch
->interface
->info
;
107 struct pim_ifchannel
*child
;
109 // Basic Sanity that we are not being silly
110 if ((ch
->sg
.src
.s_addr
!= INADDR_ANY
)
111 && (ch
->sg
.grp
.s_addr
!= INADDR_ANY
))
114 if ((ch
->sg
.src
.s_addr
== INADDR_ANY
)
115 && (ch
->sg
.grp
.s_addr
== INADDR_ANY
))
118 RB_FOREACH (child
, pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
) {
119 if ((ch
->sg
.grp
.s_addr
!= INADDR_ANY
)
120 && (child
->sg
.grp
.s_addr
== ch
->sg
.grp
.s_addr
)
123 listnode_add_sort(ch
->sources
, child
);
128 void pim_ifchannel_delete(struct pim_ifchannel
*ch
)
130 struct pim_interface
*pim_ifp
;
131 struct pim_upstream
*up
;
133 pim_ifp
= ch
->interface
->info
;
135 if (PIM_DEBUG_PIM_TRACE
)
136 zlog_debug("%s: ifchannel entry %s(%s) del start", __func__
,
137 ch
->sg_str
, ch
->interface
->name
);
139 if (PIM_I_am_DualActive(pim_ifp
)) {
142 "%s: if-chnanel-%s is deleted from a Dual "
144 __func__
, ch
->sg_str
);
145 /* Post Delete only if it is the last Dual-active Interface */
146 if (ch
->upstream
->dualactive_ifchannel_count
== 1) {
147 pim_mlag_up_local_del(pim_ifp
->pim
, ch
->upstream
);
148 PIM_UPSTREAM_FLAG_UNSET_MLAG_INTERFACE(
149 ch
->upstream
->flags
);
151 ch
->upstream
->dualactive_ifchannel_count
--;
154 if (ch
->upstream
->channel_oil
) {
155 uint32_t mask
= PIM_OIF_FLAG_PROTO_PIM
;
156 if (ch
->upstream
->flags
& PIM_UPSTREAM_FLAG_MASK_SRC_IGMP
)
157 mask
|= PIM_OIF_FLAG_PROTO_IGMP
;
160 * A S,G RPT channel can have an empty oil, we also
161 * need to take into account the fact that a ifchannel
162 * might have been suppressing a *,G ifchannel from
163 * being inherited. So let's figure out what
164 * needs to be done here
166 if ((ch
->sg
.src
.s_addr
!= INADDR_ANY
) &&
167 pim_upstream_evaluate_join_desired_interface(
168 ch
->upstream
, ch
, ch
->parent
))
169 pim_channel_add_oif(ch
->upstream
->channel_oil
,
171 PIM_OIF_FLAG_PROTO_STAR
,
174 pim_channel_del_oif(ch
->upstream
->channel_oil
,
175 ch
->interface
, mask
, __func__
);
177 * Do we have any S,G's that are inheriting?
178 * Nuke from on high too.
180 if (ch
->upstream
->sources
) {
181 struct pim_upstream
*child
;
182 struct listnode
*up_node
;
184 for (ALL_LIST_ELEMENTS_RO(ch
->upstream
->sources
,
186 pim_channel_del_inherited_oif(
194 * When this channel is removed
195 * we need to find all our children
196 * and make sure our pointers are fixed
198 pim_ifchannel_remove_children(ch
);
201 list_delete(&ch
->sources
);
203 listnode_delete(ch
->upstream
->ifchannels
, ch
);
207 /* upstream is common across ifchannels, check if upstream's
208 ifchannel list is empty before deleting upstream_del
209 ref count will take care of it.
211 if (ch
->upstream
->ref_count
> 0)
212 up
= pim_upstream_del(pim_ifp
->pim
, ch
->upstream
, __func__
);
215 if (PIM_DEBUG_PIM_TRACE
)
217 "%s: Avoiding deletion of upstream with ref_count %d "
218 "from ifchannel(%s): %s",
219 __func__
, ch
->upstream
->ref_count
,
220 ch
->interface
->name
, ch
->sg_str
);
225 THREAD_OFF(ch
->t_ifjoin_expiry_timer
);
226 THREAD_OFF(ch
->t_ifjoin_prune_pending_timer
);
227 THREAD_OFF(ch
->t_ifassert_timer
);
230 listnode_delete(ch
->parent
->sources
, ch
);
234 RB_REMOVE(pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
, ch
);
236 if (PIM_DEBUG_PIM_TRACE
)
237 zlog_debug("%s: ifchannel entry %s(%s) is deleted ", __func__
,
238 ch
->sg_str
, ch
->interface
->name
);
240 XFREE(MTYPE_PIM_IFCHANNEL
, ch
);
243 pim_upstream_update_join_desired(pim_ifp
->pim
, up
);
246 void pim_ifchannel_delete_all(struct interface
*ifp
)
248 struct pim_interface
*pim_ifp
;
249 struct pim_ifchannel
*ch
;
255 while (!RB_EMPTY(pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
)) {
256 ch
= RB_ROOT(pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
);
258 pim_ifchannel_ifjoin_switch(__func__
, ch
, PIM_IFJOIN_NOINFO
);
259 pim_ifchannel_delete(ch
);
263 static void delete_on_noinfo(struct pim_ifchannel
*ch
)
265 if (ch
->local_ifmembership
== PIM_IFMEMBERSHIP_NOINFO
266 && ch
->ifjoin_state
== PIM_IFJOIN_NOINFO
267 && ch
->t_ifjoin_expiry_timer
== NULL
)
268 pim_ifchannel_delete(ch
);
271 void pim_ifchannel_ifjoin_switch(const char *caller
, struct pim_ifchannel
*ch
,
272 enum pim_ifjoin_state new_state
)
274 enum pim_ifjoin_state old_state
= ch
->ifjoin_state
;
275 struct pim_interface
*pim_ifp
= ch
->interface
->info
;
276 struct pim_ifchannel
*child_ch
;
278 if (PIM_DEBUG_PIM_EVENTS
)
280 "PIM_IFCHANNEL(%s): %s is switching from %s to %s",
281 ch
->interface
->name
, ch
->sg_str
,
282 pim_ifchannel_ifjoin_name(ch
->ifjoin_state
, ch
->flags
),
283 pim_ifchannel_ifjoin_name(new_state
, 0));
286 if (old_state
== new_state
) {
287 if (PIM_DEBUG_PIM_EVENTS
) {
289 "%s calledby %s: non-transition on state %d (%s)",
290 __func__
, caller
, new_state
,
291 pim_ifchannel_ifjoin_name(new_state
, 0));
296 ch
->ifjoin_state
= new_state
;
298 if (ch
->sg
.src
.s_addr
== INADDR_ANY
) {
299 struct pim_upstream
*up
= ch
->upstream
;
300 struct pim_upstream
*child
;
301 struct listnode
*up_node
;
304 if (ch
->ifjoin_state
== PIM_IFJOIN_NOINFO
) {
305 for (ALL_LIST_ELEMENTS_RO(up
->sources
, up_node
,
307 struct channel_oil
*c_oil
=
310 if (PIM_DEBUG_PIM_TRACE
)
312 "%s %s: Prune(S,G)=%s from %s",
320 * If the S,G has no if channel and the
322 * has output here then the *,G was
323 * supplying the implied
324 * if channel. So remove it.
326 if (c_oil
->oil
.mfcc_ttls
327 [pim_ifp
->mroute_vif_index
])
328 pim_channel_del_inherited_oif(
329 c_oil
, ch
->interface
,
333 if (ch
->ifjoin_state
== PIM_IFJOIN_JOIN
) {
334 for (ALL_LIST_ELEMENTS_RO(up
->sources
, up_node
,
336 if (PIM_DEBUG_PIM_TRACE
)
338 "%s %s: Join(S,G)=%s from %s",
343 /* check if the channel can be
344 * inherited into the SG's OIL
346 child_ch
= pim_ifchannel_find(
349 if (pim_upstream_eval_inherit_if(
350 child
, child_ch
, ch
)) {
354 PIM_OIF_FLAG_PROTO_STAR
,
356 pim_upstream_update_join_desired(
357 pim_ifp
->pim
, child
);
363 /* Transition to/from NOINFO ? */
364 if ((old_state
== PIM_IFJOIN_NOINFO
)
365 || (new_state
== PIM_IFJOIN_NOINFO
)) {
367 if (PIM_DEBUG_PIM_EVENTS
) {
368 zlog_debug("PIM_IFCHANNEL_%s: (S,G)=%s on interface %s",
369 ((new_state
== PIM_IFJOIN_NOINFO
) ? "DOWN"
371 ch
->sg_str
, ch
->interface
->name
);
375 Record uptime of state transition to/from NOINFO
377 ch
->ifjoin_creation
= pim_time_monotonic_sec();
379 pim_upstream_update_join_desired(pim_ifp
->pim
, ch
->upstream
);
380 pim_ifchannel_update_could_assert(ch
);
381 pim_ifchannel_update_assert_tracking_desired(ch
);
385 const char *pim_ifchannel_ifjoin_name(enum pim_ifjoin_state ifjoin_state
,
388 switch (ifjoin_state
) {
389 case PIM_IFJOIN_NOINFO
:
390 if (PIM_IF_FLAG_TEST_S_G_RPT(flags
))
394 case PIM_IFJOIN_JOIN
:
396 case PIM_IFJOIN_PRUNE
:
397 if (PIM_IF_FLAG_TEST_S_G_RPT(flags
))
401 case PIM_IFJOIN_PRUNE_PENDING
:
402 if (PIM_IF_FLAG_TEST_S_G_RPT(flags
))
406 case PIM_IFJOIN_PRUNE_TMP
:
407 if (PIM_IF_FLAG_TEST_S_G_RPT(flags
))
411 case PIM_IFJOIN_PRUNE_PENDING_TMP
:
412 if (PIM_IF_FLAG_TEST_S_G_RPT(flags
))
418 return "ifjoin_bad_state";
421 const char *pim_ifchannel_ifassert_name(enum pim_ifassert_state ifassert_state
)
423 switch (ifassert_state
) {
424 case PIM_IFASSERT_NOINFO
:
426 case PIM_IFASSERT_I_AM_WINNER
:
428 case PIM_IFASSERT_I_AM_LOSER
:
432 return "ifassert_bad_state";
436 RFC 4601: 4.6.5. Assert State Macros
438 AssertWinner(S,G,I) defaults to NULL and AssertWinnerMetric(S,G,I)
439 defaults to Infinity when in the NoInfo state.
441 void reset_ifassert_state(struct pim_ifchannel
*ch
)
443 struct in_addr any
= {.s_addr
= INADDR_ANY
};
445 THREAD_OFF(ch
->t_ifassert_timer
);
447 pim_ifassert_winner_set(ch
, PIM_IFASSERT_NOINFO
, any
,
448 router
->infinite_assert_metric
);
451 struct pim_ifchannel
*pim_ifchannel_find(struct interface
*ifp
,
452 struct prefix_sg
*sg
)
454 struct pim_interface
*pim_ifp
;
455 struct pim_ifchannel
*ch
;
456 struct pim_ifchannel lookup
;
461 zlog_warn("%s: (S,G)=%s: multicast not enabled on interface %s",
462 __func__
, pim_str_sg_dump(sg
), ifp
->name
);
467 lookup
.interface
= ifp
;
468 ch
= RB_FIND(pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
, &lookup
);
473 static void ifmembership_set(struct pim_ifchannel
*ch
,
474 enum pim_ifmembership membership
)
476 struct pim_interface
*pim_ifp
= ch
->interface
->info
;
478 if (ch
->local_ifmembership
== membership
)
481 if (PIM_DEBUG_PIM_EVENTS
) {
482 zlog_debug("%s: (S,G)=%s membership now is %s on interface %s",
483 __func__
, ch
->sg_str
,
484 membership
== PIM_IFMEMBERSHIP_INCLUDE
? "INCLUDE"
486 ch
->interface
->name
);
489 ch
->local_ifmembership
= membership
;
491 pim_upstream_update_join_desired(pim_ifp
->pim
, ch
->upstream
);
492 pim_ifchannel_update_could_assert(ch
);
493 pim_ifchannel_update_assert_tracking_desired(ch
);
497 void pim_ifchannel_membership_clear(struct interface
*ifp
)
499 struct pim_interface
*pim_ifp
;
500 struct pim_ifchannel
*ch
;
505 RB_FOREACH (ch
, pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
)
506 ifmembership_set(ch
, PIM_IFMEMBERSHIP_NOINFO
);
509 void pim_ifchannel_delete_on_noinfo(struct interface
*ifp
)
511 struct pim_interface
*pim_ifp
;
512 struct pim_ifchannel
*ch
, *ch_tmp
;
517 RB_FOREACH_SAFE (ch
, pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
, ch_tmp
)
518 delete_on_noinfo(ch
);
522 * For a given Interface, if we are given a S,G
523 * Find the *,G (If we have it).
524 * If we are passed a *,G, find the *,* ifchannel
527 static struct pim_ifchannel
*pim_ifchannel_find_parent(struct pim_ifchannel
*ch
)
529 struct prefix_sg parent_sg
= ch
->sg
;
530 struct pim_ifchannel
*parent
= NULL
;
533 if ((parent_sg
.src
.s_addr
!= INADDR_ANY
)
534 && (parent_sg
.grp
.s_addr
!= INADDR_ANY
)) {
535 parent_sg
.src
.s_addr
= INADDR_ANY
;
536 parent
= pim_ifchannel_find(ch
->interface
, &parent_sg
);
539 listnode_add(parent
->sources
, ch
);
546 struct pim_ifchannel
*pim_ifchannel_add(struct interface
*ifp
,
547 struct prefix_sg
*sg
,
548 uint8_t source_flags
, int up_flags
)
550 struct pim_interface
*pim_ifp
;
551 struct pim_ifchannel
*ch
;
552 struct pim_upstream
*up
;
554 ch
= pim_ifchannel_find(ifp
, sg
);
560 ch
= XCALLOC(MTYPE_PIM_IFCHANNEL
, sizeof(*ch
));
563 if ((source_flags
& PIM_ENCODE_RPT_BIT
)
564 && !(source_flags
& PIM_ENCODE_WC_BIT
))
565 PIM_IF_FLAG_SET_S_G_RPT(ch
->flags
);
569 pim_str_sg_set(sg
, ch
->sg_str
);
570 ch
->parent
= pim_ifchannel_find_parent(ch
);
571 if (ch
->sg
.src
.s_addr
== INADDR_ANY
) {
572 ch
->sources
= list_new();
574 (int (*)(void *, void *))pim_ifchannel_compare
;
578 pim_ifchannel_find_new_children(ch
);
579 ch
->local_ifmembership
= PIM_IFMEMBERSHIP_NOINFO
;
581 ch
->ifjoin_state
= PIM_IFJOIN_NOINFO
;
582 ch
->t_ifjoin_expiry_timer
= NULL
;
583 ch
->t_ifjoin_prune_pending_timer
= NULL
;
584 ch
->ifjoin_creation
= 0;
586 RB_INSERT(pim_ifchannel_rb
, &pim_ifp
->ifchannel_rb
, ch
);
588 up
= pim_upstream_add(pim_ifp
->pim
, sg
, NULL
, up_flags
, __func__
, ch
);
592 listnode_add_sort(up
->ifchannels
, ch
);
594 ch
->ifassert_my_metric
= pim_macro_ch_my_assert_metric_eval(ch
);
595 ch
->ifassert_winner_metric
= pim_macro_ch_my_assert_metric_eval(ch
);
597 ch
->ifassert_winner
.s_addr
= INADDR_ANY
;
600 ch
->t_ifassert_timer
= NULL
;
601 ch
->ifassert_state
= PIM_IFASSERT_NOINFO
;
602 reset_ifassert_state(ch
);
603 if (pim_macro_ch_could_assert_eval(ch
))
604 PIM_IF_FLAG_SET_COULD_ASSERT(ch
->flags
);
606 PIM_IF_FLAG_UNSET_COULD_ASSERT(ch
->flags
);
608 if (pim_macro_assert_tracking_desired_eval(ch
))
609 PIM_IF_FLAG_SET_ASSERT_TRACKING_DESIRED(ch
->flags
);
611 PIM_IF_FLAG_UNSET_ASSERT_TRACKING_DESIRED(ch
->flags
);
614 * advertise MLAG Data to MLAG peer
616 if (PIM_I_am_DualActive(pim_ifp
)) {
617 up
->dualactive_ifchannel_count
++;
618 /* Sync once for upstream */
619 if (up
->dualactive_ifchannel_count
== 1) {
620 PIM_UPSTREAM_FLAG_SET_MLAG_INTERFACE(up
->flags
);
621 pim_mlag_up_local_add(pim_ifp
->pim
, up
);
625 "%s: New Dual active if-chnanel is added to upstream:%s "
626 "count:%d, flags:0x%x",
627 __func__
, up
->sg_str
,
628 up
->dualactive_ifchannel_count
, up
->flags
);
631 if (PIM_DEBUG_PIM_TRACE
)
632 zlog_debug("%s: ifchannel %s(%s) is created ", __func__
,
633 ch
->sg_str
, ch
->interface
->name
);
638 static void ifjoin_to_noinfo(struct pim_ifchannel
*ch
, bool ch_del
)
640 pim_forward_stop(ch
, !ch_del
);
641 pim_ifchannel_ifjoin_switch(__func__
, ch
, PIM_IFJOIN_NOINFO
);
643 delete_on_noinfo(ch
);
646 static int on_ifjoin_expiry_timer(struct thread
*t
)
648 struct pim_ifchannel
*ch
;
652 if (PIM_DEBUG_PIM_TRACE
)
653 zlog_debug("%s: ifchannel %s expiry timer", __func__
,
656 ifjoin_to_noinfo(ch
, true);
657 /* ch may have been deleted */
662 static int on_ifjoin_prune_pending_timer(struct thread
*t
)
664 struct pim_ifchannel
*ch
;
665 int send_prune_echo
; /* boolean */
666 struct interface
*ifp
;
667 struct pim_interface
*pim_ifp
;
671 if (PIM_DEBUG_PIM_TRACE
)
673 "%s: IFCHANNEL%s %s Prune Pending Timer Popped",
674 __func__
, pim_str_sg_dump(&ch
->sg
),
675 pim_ifchannel_ifjoin_name(ch
->ifjoin_state
, ch
->flags
));
677 if (ch
->ifjoin_state
== PIM_IFJOIN_PRUNE_PENDING
) {
680 if (!PIM_IF_FLAG_TEST_S_G_RPT(ch
->flags
)) {
681 /* Send PruneEcho(S,G) ? */
683 (listcount(pim_ifp
->pim_neighbor_list
) > 1);
685 if (send_prune_echo
) {
688 rpf
.source_nexthop
.interface
= ifp
;
689 rpf
.rpf_addr
.u
.prefix4
=
690 pim_ifp
->primary_address
;
691 pim_jp_agg_single_upstream_send(
692 &rpf
, ch
->upstream
, 0);
695 ifjoin_to_noinfo(ch
, true);
697 /* If SGRpt flag is set on ifchannel, Trigger SGRpt
698 * message on RP path upon prune timer expiry.
700 ch
->ifjoin_state
= PIM_IFJOIN_PRUNE
;
702 struct pim_upstream
*parent
=
703 ch
->upstream
->parent
;
705 pim_upstream_update_join_desired(pim_ifp
->pim
,
708 pim_jp_agg_single_upstream_send(&parent
->rpf
,
712 /* from here ch may have been deleted */
718 static void check_recv_upstream(int is_join
, struct interface
*recv_ifp
,
719 struct in_addr upstream
, struct prefix_sg
*sg
,
720 uint8_t source_flags
, int holdtime
)
722 struct pim_upstream
*up
;
723 struct pim_interface
*pim_ifp
= recv_ifp
->info
;
725 /* Upstream (S,G) in Joined state ? */
726 up
= pim_upstream_find(pim_ifp
->pim
, sg
);
729 if (up
->join_state
!= PIM_UPSTREAM_JOINED
)
732 /* Upstream (S,G) in Joined state */
734 if (pim_rpf_addr_is_inaddr_any(&up
->rpf
)) {
735 /* RPF'(S,G) not found */
736 zlog_warn("%s %s: RPF'%s not found", __FILE__
, __func__
,
741 /* upstream directed to RPF'(S,G) ? */
742 if (upstream
.s_addr
!= up
->rpf
.rpf_addr
.u
.prefix4
.s_addr
) {
743 char up_str
[INET_ADDRSTRLEN
];
744 char rpf_str
[PREFIX_STRLEN
];
745 pim_inet4_dump("<up?>", upstream
, up_str
, sizeof(up_str
));
746 pim_addr_dump("<rpf?>", &up
->rpf
.rpf_addr
, rpf_str
,
749 "%s %s: (S,G)=%s upstream=%s not directed to RPF'(S,G)=%s on interface %s",
750 __FILE__
, __func__
, up
->sg_str
, up_str
, rpf_str
,
754 /* upstream directed to RPF'(S,G) */
757 /* Join(S,G) to RPF'(S,G) */
758 pim_upstream_join_suppress(up
, up
->rpf
.rpf_addr
.u
.prefix4
,
763 /* Prune to RPF'(S,G) */
765 if (source_flags
& PIM_RPT_BIT_MASK
) {
766 if (source_flags
& PIM_WILDCARD_BIT_MASK
) {
767 /* Prune(*,G) to RPF'(S,G) */
768 pim_upstream_join_timer_decrease_to_t_override(
773 /* Prune(S,G,rpt) to RPF'(S,G) */
774 pim_upstream_join_timer_decrease_to_t_override("Prune(S,G,rpt)",
779 /* Prune(S,G) to RPF'(S,G) */
780 pim_upstream_join_timer_decrease_to_t_override("Prune(S,G)", up
);
783 static int nonlocal_upstream(int is_join
, struct interface
*recv_ifp
,
784 struct in_addr upstream
, struct prefix_sg
*sg
,
785 uint8_t source_flags
, uint16_t holdtime
)
787 struct pim_interface
*recv_pim_ifp
;
788 int is_local
; /* boolean */
790 recv_pim_ifp
= recv_ifp
->info
;
791 zassert(recv_pim_ifp
);
793 is_local
= (upstream
.s_addr
== recv_pim_ifp
->primary_address
.s_addr
);
798 if (PIM_DEBUG_PIM_TRACE_DETAIL
) {
799 char up_str
[INET_ADDRSTRLEN
];
800 pim_inet4_dump("<upstream?>", upstream
, up_str
, sizeof(up_str
));
801 zlog_warn("%s: recv %s (S,G)=%s to non-local upstream=%s on %s",
802 __func__
, is_join
? "join" : "prune",
803 pim_str_sg_dump(sg
), up_str
, recv_ifp
->name
);
807 * Since recv upstream addr was not directed to our primary
808 * address, check if we should react to it in any way.
810 check_recv_upstream(is_join
, recv_ifp
, upstream
, sg
, source_flags
,
813 return 1; /* non-local */
816 static void pim_ifchannel_ifjoin_handler(struct pim_ifchannel
*ch
,
817 struct pim_interface
*pim_ifp
)
819 pim_ifchannel_ifjoin_switch(__func__
, ch
, PIM_IFJOIN_JOIN
);
820 PIM_IF_FLAG_UNSET_S_G_RPT(ch
->flags
);
821 /* check if the interface qualifies as an immediate
824 if (pim_upstream_evaluate_join_desired_interface(
827 pim_channel_add_oif(ch
->upstream
->channel_oil
,
829 PIM_OIF_FLAG_PROTO_PIM
,
831 pim_upstream_update_join_desired(pim_ifp
->pim
,
837 void pim_ifchannel_join_add(struct interface
*ifp
, struct in_addr neigh_addr
,
838 struct in_addr upstream
, struct prefix_sg
*sg
,
839 uint8_t source_flags
, uint16_t holdtime
)
841 struct pim_interface
*pim_ifp
;
842 struct pim_ifchannel
*ch
;
844 if (nonlocal_upstream(1 /* join */, ifp
, upstream
, sg
, source_flags
,
849 ch
= pim_ifchannel_add(ifp
, sg
, source_flags
,
850 PIM_UPSTREAM_FLAG_MASK_SRC_PIM
);
853 RFC 4601: 4.6.1. (S,G) Assert Message State Machine
855 Transitions from "I am Assert Loser" State
857 Receive Join(S,G) on Interface I
859 We receive a Join(S,G) that has the Upstream Neighbor Address
860 field set to my primary IP address on interface I. The action is
861 to transition to NoInfo state, delete this (S,G) assert state
862 (Actions A5 below), and allow the normal PIM Join/Prune mechanisms
865 Notice: The nonlocal_upstream() test above ensures the upstream
866 address of the join message is our primary address.
868 if (ch
->ifassert_state
== PIM_IFASSERT_I_AM_LOSER
) {
869 char neigh_str
[INET_ADDRSTRLEN
];
870 pim_inet4_dump("<neigh?>", neigh_addr
, neigh_str
,
872 zlog_warn("%s: Assert Loser recv Join%s from %s on %s",
873 __func__
, ch
->sg_str
, neigh_str
, ifp
->name
);
875 assert_action_a5(ch
);
881 switch (ch
->ifjoin_state
) {
882 case PIM_IFJOIN_NOINFO
:
883 pim_ifchannel_ifjoin_switch(__func__
, ch
, PIM_IFJOIN_JOIN
);
884 if (pim_macro_chisin_oiflist(ch
)) {
885 pim_upstream_inherited_olist(pim_ifp
->pim
,
887 pim_forward_start(ch
);
890 * If we are going to be a LHR, we need to note it
892 if (ch
->upstream
->parent
&&
893 (PIM_UPSTREAM_FLAG_TEST_CAN_BE_LHR(
894 ch
->upstream
->parent
->flags
))
895 && !(ch
->upstream
->flags
896 & PIM_UPSTREAM_FLAG_MASK_SRC_LHR
)) {
897 pim_upstream_ref(ch
->upstream
,
898 PIM_UPSTREAM_FLAG_MASK_SRC_LHR
,
900 pim_upstream_keep_alive_timer_start(
901 ch
->upstream
, pim_ifp
->pim
->keep_alive_time
);
904 case PIM_IFJOIN_JOIN
:
905 zassert(!ch
->t_ifjoin_prune_pending_timer
);
908 In the JOIN state ch->t_ifjoin_expiry_timer may be NULL due to
910 previously received join message with holdtime=0xFFFF.
912 if (ch
->t_ifjoin_expiry_timer
) {
913 unsigned long remain
= thread_timer_remain_second(
914 ch
->t_ifjoin_expiry_timer
);
915 if (remain
> holdtime
) {
917 RFC 4601: 4.5.3. Receiving (S,G) Join/Prune
920 Transitions from Join State
922 The (S,G) downstream state machine on
923 interface I remains in
924 Join state, and the Expiry Timer (ET) is
926 maximum of its current value and the HoldTime
928 triggering Join/Prune message.
930 Conclusion: Do not change the ET if the
932 higher than the received join holdtime.
937 THREAD_OFF(ch
->t_ifjoin_expiry_timer
);
939 case PIM_IFJOIN_PRUNE
:
940 if (source_flags
& PIM_ENCODE_RPT_BIT
)
941 pim_ifchannel_ifjoin_switch(__func__
, ch
,
944 pim_ifchannel_ifjoin_handler(ch
, pim_ifp
);
946 case PIM_IFJOIN_PRUNE_PENDING
:
947 THREAD_OFF(ch
->t_ifjoin_prune_pending_timer
);
948 if (source_flags
& PIM_ENCODE_RPT_BIT
) {
949 THREAD_OFF(ch
->t_ifjoin_expiry_timer
);
950 pim_ifchannel_ifjoin_switch(__func__
, ch
,
953 pim_ifchannel_ifjoin_handler(ch
, pim_ifp
);
956 case PIM_IFJOIN_PRUNE_TMP
:
958 case PIM_IFJOIN_PRUNE_PENDING_TMP
:
962 if (holdtime
!= 0xFFFF) {
963 thread_add_timer(router
->master
, on_ifjoin_expiry_timer
, ch
,
964 holdtime
, &ch
->t_ifjoin_expiry_timer
);
968 void pim_ifchannel_prune(struct interface
*ifp
, struct in_addr upstream
,
969 struct prefix_sg
*sg
, uint8_t source_flags
,
972 struct pim_ifchannel
*ch
;
973 struct pim_interface
*pim_ifp
;
974 int jp_override_interval_msec
;
976 if (nonlocal_upstream(0 /* prune */, ifp
, upstream
, sg
, source_flags
,
981 ch
= pim_ifchannel_find(ifp
, sg
);
982 if (!ch
&& !(source_flags
& PIM_ENCODE_RPT_BIT
)) {
983 if (PIM_DEBUG_PIM_TRACE
)
985 "%s: Received prune with no relevant ifchannel %s%s state: %d",
986 __func__
, ifp
->name
, pim_str_sg_dump(sg
),
991 ch
= pim_ifchannel_add(ifp
, sg
, source_flags
,
992 PIM_UPSTREAM_FLAG_MASK_SRC_PIM
);
996 switch (ch
->ifjoin_state
) {
997 case PIM_IFJOIN_NOINFO
:
998 if (source_flags
& PIM_ENCODE_RPT_BIT
) {
999 if (!(source_flags
& PIM_ENCODE_WC_BIT
))
1000 PIM_IF_FLAG_SET_S_G_RPT(ch
->flags
);
1002 ch
->ifjoin_state
= PIM_IFJOIN_PRUNE_PENDING
;
1003 if (listcount(pim_ifp
->pim_neighbor_list
) > 1)
1004 jp_override_interval_msec
=
1005 pim_if_jp_override_interval_msec(ifp
);
1007 jp_override_interval_msec
=
1008 0; /* schedule to expire immediately */
1009 /* If we called ifjoin_prune() directly instead, care
1011 be taken not to use "ch" afterwards since it would be
1014 THREAD_OFF(ch
->t_ifjoin_prune_pending_timer
);
1015 THREAD_OFF(ch
->t_ifjoin_expiry_timer
);
1016 thread_add_timer_msec(
1017 router
->master
, on_ifjoin_prune_pending_timer
,
1018 ch
, jp_override_interval_msec
,
1019 &ch
->t_ifjoin_prune_pending_timer
);
1020 thread_add_timer(router
->master
, on_ifjoin_expiry_timer
,
1022 &ch
->t_ifjoin_expiry_timer
);
1023 pim_upstream_update_join_desired(pim_ifp
->pim
,
1027 case PIM_IFJOIN_PRUNE_PENDING
:
1030 case PIM_IFJOIN_JOIN
:
1031 THREAD_OFF(ch
->t_ifjoin_expiry_timer
);
1033 pim_ifchannel_ifjoin_switch(__func__
, ch
,
1034 PIM_IFJOIN_PRUNE_PENDING
);
1036 if (listcount(pim_ifp
->pim_neighbor_list
) > 1)
1037 jp_override_interval_msec
=
1038 pim_if_jp_override_interval_msec(ifp
);
1040 jp_override_interval_msec
=
1041 0; /* schedule to expire immediately */
1042 /* If we called ifjoin_prune() directly instead, care should
1043 be taken not to use "ch" afterwards since it would be
1045 THREAD_OFF(ch
->t_ifjoin_prune_pending_timer
);
1046 thread_add_timer_msec(router
->master
,
1047 on_ifjoin_prune_pending_timer
, ch
,
1048 jp_override_interval_msec
,
1049 &ch
->t_ifjoin_prune_pending_timer
);
1051 case PIM_IFJOIN_PRUNE
:
1052 if (source_flags
& PIM_ENCODE_RPT_BIT
) {
1053 THREAD_OFF(ch
->t_ifjoin_prune_pending_timer
);
1054 thread_add_timer(router
->master
, on_ifjoin_expiry_timer
,
1056 &ch
->t_ifjoin_expiry_timer
);
1059 case PIM_IFJOIN_PRUNE_TMP
:
1060 if (source_flags
& PIM_ENCODE_RPT_BIT
) {
1061 ch
->ifjoin_state
= PIM_IFJOIN_PRUNE
;
1062 THREAD_OFF(ch
->t_ifjoin_expiry_timer
);
1063 thread_add_timer(router
->master
, on_ifjoin_expiry_timer
,
1065 &ch
->t_ifjoin_expiry_timer
);
1068 case PIM_IFJOIN_PRUNE_PENDING_TMP
:
1069 if (source_flags
& PIM_ENCODE_RPT_BIT
) {
1070 ch
->ifjoin_state
= PIM_IFJOIN_PRUNE_PENDING
;
1071 THREAD_OFF(ch
->t_ifjoin_expiry_timer
);
1072 thread_add_timer(router
->master
, on_ifjoin_expiry_timer
,
1074 &ch
->t_ifjoin_expiry_timer
);
1080 int pim_ifchannel_local_membership_add(struct interface
*ifp
,
1081 struct prefix_sg
*sg
, bool is_vxlan
)
1083 struct pim_ifchannel
*ch
, *starch
;
1084 struct pim_interface
*pim_ifp
;
1085 struct pim_instance
*pim
;
1088 /* PIM enabled on interface? */
1089 pim_ifp
= ifp
->info
;
1091 if (PIM_DEBUG_EVENTS
)
1092 zlog_debug("%s:%s Expected pim interface setup for %s",
1093 __func__
, pim_str_sg_dump(sg
), ifp
->name
);
1097 if (!PIM_IF_TEST_PIM(pim_ifp
->options
)) {
1098 if (PIM_DEBUG_EVENTS
)
1100 "%s:%s PIM is not configured on this interface %s",
1101 __func__
, pim_str_sg_dump(sg
), ifp
->name
);
1107 /* skip (*,G) ch creation if G is of type SSM */
1108 if (sg
->src
.s_addr
== INADDR_ANY
) {
1109 if (pim_is_grp_ssm(pim
, sg
->grp
)) {
1110 if (PIM_DEBUG_PIM_EVENTS
)
1112 "%s: local membership (S,G)=%s ignored as group is SSM",
1113 __func__
, pim_str_sg_dump(sg
));
1118 /* vxlan term mroutes use ipmr-lo as local member to
1119 * pull down multicast vxlan tunnel traffic
1121 up_flags
= is_vxlan
? PIM_UPSTREAM_FLAG_MASK_SRC_VXLAN_TERM
:
1122 PIM_UPSTREAM_FLAG_MASK_SRC_IGMP
;
1123 ch
= pim_ifchannel_add(ifp
, sg
, 0, up_flags
);
1125 ifmembership_set(ch
, PIM_IFMEMBERSHIP_INCLUDE
);
1127 if (sg
->src
.s_addr
== INADDR_ANY
) {
1128 struct pim_upstream
*up
= pim_upstream_find(pim
, sg
);
1129 struct pim_upstream
*child
;
1130 struct listnode
*up_node
;
1134 for (ALL_LIST_ELEMENTS_RO(up
->sources
, up_node
, child
)) {
1135 if (PIM_DEBUG_EVENTS
)
1136 zlog_debug("%s %s: IGMP (S,G)=%s(%s) from %s",
1137 __FILE__
, __func__
, child
->sg_str
,
1138 ifp
->name
, up
->sg_str
);
1140 ch
= pim_ifchannel_find(ifp
, &child
->sg
);
1141 if (pim_upstream_evaluate_join_desired_interface(
1142 child
, ch
, starch
)) {
1143 pim_channel_add_oif(child
->channel_oil
, ifp
,
1144 PIM_OIF_FLAG_PROTO_STAR
,
1146 pim_upstream_update_join_desired(pim
, child
);
1150 if (pim
->spt
.switchover
== PIM_SPT_INFINITY
) {
1151 if (pim
->spt
.plist
) {
1152 struct prefix_list
*plist
= prefix_list_lookup(
1153 AFI_IP
, pim
->spt
.plist
);
1156 g
.prefixlen
= IPV4_MAX_PREFIXLEN
;
1157 g
.u
.prefix4
= up
->sg
.grp
;
1159 if (prefix_list_apply(plist
, &g
)
1161 pim_channel_add_oif(
1162 up
->channel_oil
, pim
->regiface
,
1163 PIM_OIF_FLAG_PROTO_IGMP
,
1168 pim_channel_add_oif(up
->channel_oil
, pim
->regiface
,
1169 PIM_OIF_FLAG_PROTO_IGMP
,
1176 void pim_ifchannel_local_membership_del(struct interface
*ifp
,
1177 struct prefix_sg
*sg
)
1179 struct pim_ifchannel
*starch
, *ch
, *orig
;
1180 struct pim_interface
*pim_ifp
;
1182 /* PIM enabled on interface? */
1183 pim_ifp
= ifp
->info
;
1186 if (!PIM_IF_TEST_PIM(pim_ifp
->options
))
1189 orig
= ch
= pim_ifchannel_find(ifp
, sg
);
1192 ifmembership_set(ch
, PIM_IFMEMBERSHIP_NOINFO
);
1194 if (sg
->src
.s_addr
== INADDR_ANY
) {
1195 struct pim_upstream
*up
= pim_upstream_find(pim_ifp
->pim
, sg
);
1196 struct pim_upstream
*child
;
1197 struct listnode
*up_node
, *up_nnode
;
1201 for (ALL_LIST_ELEMENTS(up
->sources
, up_node
, up_nnode
, child
)) {
1202 struct channel_oil
*c_oil
= child
->channel_oil
;
1203 struct pim_ifchannel
*chchannel
=
1204 pim_ifchannel_find(ifp
, &child
->sg
);
1206 pim_ifp
= ifp
->info
;
1208 if (PIM_DEBUG_EVENTS
)
1209 zlog_debug("%s %s: Prune(S,G)=%s(%s) from %s",
1210 __FILE__
, __func__
, up
->sg_str
,
1211 ifp
->name
, child
->sg_str
);
1213 ch
= pim_ifchannel_find(ifp
, &child
->sg
);
1215 * If the S,G has no if channel and the c_oil still
1216 * has output here then the *,G was supplying the
1218 * if channel. So remove it.
1220 if (!pim_upstream_evaluate_join_desired_interface(
1221 child
, ch
, starch
) ||
1223 c_oil
->oil
.mfcc_ttls
[pim_ifp
->mroute_vif_index
])) {
1224 pim_channel_del_inherited_oif(c_oil
, ifp
,
1228 /* Child node removal/ref count-- will happen as part of
1229 * parent' delete_no_info */
1232 delete_on_noinfo(orig
);
1235 void pim_ifchannel_update_could_assert(struct pim_ifchannel
*ch
)
1237 int old_couldassert
=
1238 PIM_FORCE_BOOLEAN(PIM_IF_FLAG_TEST_COULD_ASSERT(ch
->flags
));
1239 int new_couldassert
=
1240 PIM_FORCE_BOOLEAN(pim_macro_ch_could_assert_eval(ch
));
1242 if (new_couldassert
== old_couldassert
)
1245 if (PIM_DEBUG_PIM_EVENTS
) {
1246 char src_str
[INET_ADDRSTRLEN
];
1247 char grp_str
[INET_ADDRSTRLEN
];
1248 pim_inet4_dump("<src?>", ch
->sg
.src
, src_str
, sizeof(src_str
));
1249 pim_inet4_dump("<grp?>", ch
->sg
.grp
, grp_str
, sizeof(grp_str
));
1250 zlog_debug("%s: CouldAssert(%s,%s,%s) changed from %d to %d",
1251 __func__
, src_str
, grp_str
, ch
->interface
->name
,
1252 old_couldassert
, new_couldassert
);
1255 if (new_couldassert
) {
1256 /* CouldAssert(S,G,I) switched from false to true */
1257 PIM_IF_FLAG_SET_COULD_ASSERT(ch
->flags
);
1259 /* CouldAssert(S,G,I) switched from true to false */
1260 PIM_IF_FLAG_UNSET_COULD_ASSERT(ch
->flags
);
1262 if (ch
->ifassert_state
== PIM_IFASSERT_I_AM_WINNER
) {
1263 assert_action_a4(ch
);
1267 pim_ifchannel_update_my_assert_metric(ch
);
1271 my_assert_metric may be affected by:
1274 pim_ifp->primary_address
1275 rpf->source_nexthop.mrib_metric_preference;
1276 rpf->source_nexthop.mrib_route_metric;
1278 void pim_ifchannel_update_my_assert_metric(struct pim_ifchannel
*ch
)
1280 struct pim_assert_metric my_metric_new
=
1281 pim_macro_ch_my_assert_metric_eval(ch
);
1283 if (pim_assert_metric_match(&my_metric_new
, &ch
->ifassert_my_metric
))
1286 if (PIM_DEBUG_PIM_EVENTS
) {
1287 char src_str
[INET_ADDRSTRLEN
];
1288 char grp_str
[INET_ADDRSTRLEN
];
1289 char old_addr_str
[INET_ADDRSTRLEN
];
1290 char new_addr_str
[INET_ADDRSTRLEN
];
1291 pim_inet4_dump("<src?>", ch
->sg
.src
, src_str
, sizeof(src_str
));
1292 pim_inet4_dump("<grp?>", ch
->sg
.grp
, grp_str
, sizeof(grp_str
));
1293 pim_inet4_dump("<old_addr?>", ch
->ifassert_my_metric
.ip_address
,
1294 old_addr_str
, sizeof(old_addr_str
));
1295 pim_inet4_dump("<new_addr?>", my_metric_new
.ip_address
,
1296 new_addr_str
, sizeof(new_addr_str
));
1298 "%s: my_assert_metric(%s,%s,%s) changed from %u,%u,%u,%s to %u,%u,%u,%s",
1299 __func__
, src_str
, grp_str
, ch
->interface
->name
,
1300 ch
->ifassert_my_metric
.rpt_bit_flag
,
1301 ch
->ifassert_my_metric
.metric_preference
,
1302 ch
->ifassert_my_metric
.route_metric
, old_addr_str
,
1303 my_metric_new
.rpt_bit_flag
,
1304 my_metric_new
.metric_preference
,
1305 my_metric_new
.route_metric
, new_addr_str
);
1308 ch
->ifassert_my_metric
= my_metric_new
;
1310 if (pim_assert_metric_better(&ch
->ifassert_my_metric
,
1311 &ch
->ifassert_winner_metric
)) {
1312 assert_action_a5(ch
);
1316 void pim_ifchannel_update_assert_tracking_desired(struct pim_ifchannel
*ch
)
1318 int old_atd
= PIM_FORCE_BOOLEAN(
1319 PIM_IF_FLAG_TEST_ASSERT_TRACKING_DESIRED(ch
->flags
));
1321 PIM_FORCE_BOOLEAN(pim_macro_assert_tracking_desired_eval(ch
));
1323 if (new_atd
== old_atd
)
1326 if (PIM_DEBUG_PIM_EVENTS
) {
1327 char src_str
[INET_ADDRSTRLEN
];
1328 char grp_str
[INET_ADDRSTRLEN
];
1329 pim_inet4_dump("<src?>", ch
->sg
.src
, src_str
, sizeof(src_str
));
1330 pim_inet4_dump("<grp?>", ch
->sg
.grp
, grp_str
, sizeof(grp_str
));
1332 "%s: AssertTrackingDesired(%s,%s,%s) changed from %d to %d",
1333 __func__
, src_str
, grp_str
, ch
->interface
->name
,
1338 /* AssertTrackingDesired(S,G,I) switched from false to true */
1339 PIM_IF_FLAG_SET_ASSERT_TRACKING_DESIRED(ch
->flags
);
1341 /* AssertTrackingDesired(S,G,I) switched from true to false */
1342 PIM_IF_FLAG_UNSET_ASSERT_TRACKING_DESIRED(ch
->flags
);
1344 if (ch
->ifassert_state
== PIM_IFASSERT_I_AM_LOSER
) {
1345 assert_action_a5(ch
);
1351 * If we have a new pim interface, check to
1352 * see if any of the pre-existing channels have
1353 * their upstream out that way and turn on forwarding
1354 * for that ifchannel then.
1356 void pim_ifchannel_scan_forward_start(struct interface
*new_ifp
)
1358 struct pim_interface
*new_pim_ifp
= new_ifp
->info
;
1359 struct pim_instance
*pim
= new_pim_ifp
->pim
;
1360 struct interface
*ifp
;
1362 FOR_ALL_INTERFACES (pim
->vrf
, ifp
) {
1363 struct pim_interface
*loop_pim_ifp
= ifp
->info
;
1364 struct pim_ifchannel
*ch
;
1369 if (new_pim_ifp
== loop_pim_ifp
)
1372 RB_FOREACH (ch
, pim_ifchannel_rb
, &loop_pim_ifp
->ifchannel_rb
) {
1373 if (ch
->ifjoin_state
== PIM_IFJOIN_JOIN
) {
1374 struct pim_upstream
*up
= ch
->upstream
;
1375 if ((!up
->channel_oil
)
1376 && (up
->rpf
.source_nexthop
1377 .interface
== new_ifp
))
1378 pim_forward_start(ch
);
1385 * Downstream per-interface (S,G,rpt) state machine
1386 * states that we need to move (S,G,rpt) items
1387 * into different states at the start of the
1388 * reception of a *,G join as well, when
1389 * we get End of Message
1391 void pim_ifchannel_set_star_g_join_state(struct pim_ifchannel
*ch
, int eom
,
1394 bool send_upstream_starg
= false;
1395 struct pim_ifchannel
*child
;
1396 struct listnode
*ch_node
, *nch_node
;
1397 struct pim_instance
*pim
=
1398 ((struct pim_interface
*)ch
->interface
->info
)->pim
;
1399 struct pim_upstream
*starup
= ch
->upstream
;
1401 if (PIM_DEBUG_PIM_TRACE
)
1403 "%s: %s %s eom: %d join %u", __func__
,
1404 pim_ifchannel_ifjoin_name(ch
->ifjoin_state
, ch
->flags
),
1405 ch
->sg_str
, eom
, join
);
1409 for (ALL_LIST_ELEMENTS(ch
->sources
, ch_node
, nch_node
, child
)) {
1410 if (!PIM_IF_FLAG_TEST_S_G_RPT(child
->flags
))
1413 switch (child
->ifjoin_state
) {
1414 case PIM_IFJOIN_NOINFO
:
1415 case PIM_IFJOIN_JOIN
:
1417 case PIM_IFJOIN_PRUNE
:
1419 child
->ifjoin_state
= PIM_IFJOIN_PRUNE_TMP
;
1421 case PIM_IFJOIN_PRUNE_PENDING
:
1423 child
->ifjoin_state
=
1424 PIM_IFJOIN_PRUNE_PENDING_TMP
;
1426 case PIM_IFJOIN_PRUNE_TMP
:
1427 case PIM_IFJOIN_PRUNE_PENDING_TMP
:
1431 if (child
->ifjoin_state
== PIM_IFJOIN_PRUNE_PENDING_TMP
)
1432 THREAD_OFF(child
->t_ifjoin_prune_pending_timer
);
1433 THREAD_OFF(child
->t_ifjoin_expiry_timer
);
1435 PIM_IF_FLAG_UNSET_S_G_RPT(child
->flags
);
1436 child
->ifjoin_state
= PIM_IFJOIN_NOINFO
;
1438 if ((I_am_RP(pim
, child
->sg
.grp
)) &&
1439 (!pim_upstream_empty_inherited_olist(
1440 child
->upstream
))) {
1441 pim_channel_add_oif(
1442 child
->upstream
->channel_oil
,
1443 ch
->interface
, PIM_OIF_FLAG_PROTO_STAR
,
1445 pim_upstream_update_join_desired(pim
,
1448 send_upstream_starg
= true;
1450 delete_on_noinfo(child
);
1455 if (send_upstream_starg
)
1456 pim_jp_agg_single_upstream_send(&starup
->rpf
, starup
, true);
1459 unsigned int pim_ifchannel_hash_key(const void *arg
)
1461 const struct pim_ifchannel
*ch
= arg
;
1463 return jhash_2words(ch
->sg
.src
.s_addr
, ch
->sg
.grp
.s_addr
, 0);