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pimd: Prevent crash with igmp only config

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Issue: #7892 has a startup config where only igmp
interfaces are created and a igmp report comes in.

Effectively we are not creating the regiface device unless
we do a `ip pim`.  This is incorrect we should always create
the regiface.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2021-01-21 07:28:19 -05:00
parent 52624d7945
commit 853d21145c
1 changed files with 2 additions and 1 deletions
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3
pimd/pim_nb_config.c
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@ -545,7 +545,7 @@ static int pim_cmd_igmp_start(struct interface *ifp)
pim_ifp = ifp->info;
if (!pim_ifp) {
(void)pim_if_new(ifp, true, false, false, false);
pim_ifp = pim_if_new(ifp, true, false, false, false);
need_startup = 1;
} else {
if (!PIM_IF_TEST_IGMP(pim_ifp->options)) {
@ -553,6 +553,7 @@ static int pim_cmd_igmp_start(struct interface *ifp)
need_startup = 1;
}
}
pim_if_create_pimreg(pim_ifp->pim);
/* 'ip igmp' executed multiple times, with need_startup
* avoid multiple if add all and membership refresh