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pimd: on some triggers use_rpt re-evaluated for all groups

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RP config change is a big hammer and use_rpt/spt needs to be
re-evaluated on all existing (S,G) entries.

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
This commit is contained in:
Anuradha Karuppiah 2019-11-15 11:19:53 -08:00
parent 9929a2a9af
commit a749b90041
3 changed files with 20 additions and 0 deletions
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3
pimd/pim_rp.c
View file

@ -274,6 +274,7 @@ struct rp_info *pim_rp_find_match_group(struct pim_instance *pim,
static void pim_rp_refresh_group_to_rp_mapping(struct pim_instance *pim) static void pim_rp_refresh_group_to_rp_mapping(struct pim_instance *pim)
{ {
pim_msdp_i_am_rp_changed(pim); pim_msdp_i_am_rp_changed(pim);
pim_upstream_reeval_use_rpt(pim);
} }
void pim_rp_prefix_list_update(struct pim_instance *pim, void pim_rp_prefix_list_update(struct pim_instance *pim,
@ -1041,6 +1042,7 @@ void pim_rp_check_on_if_add(struct pim_interface *pim_ifp)
if (i_am_rp_changed) { if (i_am_rp_changed) {
pim_msdp_i_am_rp_changed(pim); pim_msdp_i_am_rp_changed(pim);
pim_upstream_reeval_use_rpt(pim);
} }
} }
@ -1083,6 +1085,7 @@ void pim_i_am_rp_re_evaluate(struct pim_instance *pim)
if (i_am_rp_changed) { if (i_am_rp_changed) {
pim_msdp_i_am_rp_changed(pim); pim_msdp_i_am_rp_changed(pim);
pim_upstream_reeval_use_rpt(pim);
} }
} }

16
pimd/pim_upstream.c
View file

@ -627,6 +627,22 @@ void pim_upstream_update_use_rpt(struct pim_upstream *up,
} }
} }
/* some events like RP change require re-evaluation of SGrpt across
* all groups
*/
void pim_upstream_reeval_use_rpt(struct pim_instance *pim)
{
struct pim_upstream *up;
struct listnode *node;
for (ALL_LIST_ELEMENTS_RO(pim->upstream_list, node, up)) {
if (up->sg.src.s_addr == INADDR_ANY)
continue;
pim_upstream_update_use_rpt(up, true /*update_mroute*/);
}
}
void pim_upstream_switch(struct pim_instance *pim, struct pim_upstream *up, void pim_upstream_switch(struct pim_instance *pim, struct pim_upstream *up,
enum pim_upstream_state new_state) enum pim_upstream_state new_state)
{ {

1
pimd/pim_upstream.h
View file

@ -336,4 +336,5 @@ void pim_upstream_fill_static_iif(struct pim_upstream *up,
struct interface *incoming); struct interface *incoming);
void pim_upstream_update_use_rpt(struct pim_upstream *up, void pim_upstream_update_use_rpt(struct pim_upstream *up,
bool update_mroute); bool update_mroute);
void pim_upstream_reeval_use_rpt(struct pim_instance *pim);
#endif /* PIM_UPSTREAM_H */ #endif /* PIM_UPSTREAM_H */