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pimd: Stop crash in show of single interface

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There exists a possiblity that we have upstream data but
at this point in time the rpf failed because there is no
path.  As such the rpf interface will be NULL and we
should not necessarily trust it.  Prevent a crash

Ticket: CM-24857
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2019-05-02 10:37:04 -04:00
parent f6c8a6d7bc
commit 859ea2dea0
1 changed files with 2 additions and 0 deletions
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2
pimd/pim_cmd.c
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@ -1207,6 +1207,8 @@ static void pim_show_interfaces_single(struct pim_instance *pim,
print_header = 1;
for (ALL_LIST_ELEMENTS_RO(pim->upstream_list, upnode,
up)) {
if (!up->rpf.source_nexthop.interface)
continue;
if (strcmp(ifp->name,
up->rpf.source_nexthop