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pimd: Stop join/prunes from crashing

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When we receive a join/prune for a upstream
that we are unable to create, safely ignore
the request until the situation resolves itself.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-09-22 13:25:48 -04:00
parent 8971ccb29d
commit 905d48fa7e
1 changed files with 16 additions and 0 deletions
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16
pimd/pim_join.c
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@ -108,6 +108,15 @@ static void recv_join(struct interface *ifp,
struct pim_upstream *child; struct pim_upstream *child;
struct listnode *up_node; struct listnode *up_node;
/*
* If we are unable to create upstream information
* Due to any number of reasons it is possible
* That we might have not created the ifchannel
* and upstream above. So just fall out gracefully
*/
if (!up)
return;
for (ALL_LIST_ELEMENTS_RO (qpim_upstream_list, up_node, child)) for (ALL_LIST_ELEMENTS_RO (qpim_upstream_list, up_node, child))
{ {
if (child->parent == up) if (child->parent == up)
@ -178,6 +187,13 @@ static void recv_prune(struct interface *ifp,
struct pim_upstream *child; struct pim_upstream *child;
struct listnode *up_node; struct listnode *up_node;
/*
* If up is not found then there is nothing
* to do here (see recv_join above)
*/
if (!up)
return;
for (ALL_LIST_ELEMENTS_RO (qpim_upstream_list, up_node, child)) for (ALL_LIST_ELEMENTS_RO (qpim_upstream_list, up_node, child))
{ {
if (child->parent == up) if (child->parent == up)