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vrrpd: fix autoconfig of protodown'd interfaces

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When autoconfiguring VRRP, interfaces that are protodown'd should be
automatically brought up. Otherwise Zebra won't send us their interface
addresses and we'll sit in Initialize forever.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2019-02-28 23:13:20 +00:00
parent c7e65c4f80
commit d37281cb04
1 changed files with 47 additions and 15 deletions
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62
vrrpd/vrrp.c
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@ -1599,11 +1599,22 @@ vrrp_autoconfig_autocreate(struct interface *mvl_ifp)
return NULL;
}
vr->autoconf = true;
/*
* If these interfaces are protodown on, we need to un-protodown them
* in order to get Zebra to send us their addresses so we can
* autoconfigure them.
*/
if (vr->v4->mvl_ifp)
vrrp_zclient_send_interface_protodown(vr->v4->mvl_ifp, false);
if (vr->v6->mvl_ifp)
vrrp_zclient_send_interface_protodown(vr->v6->mvl_ifp, false);
/* If they're not, we can go ahead and add the addresses we have */
vrrp_autoconfig_autoaddrupdate(vr->v4);
vrrp_autoconfig_autoaddrupdate(vr->v6);
vr->autoconf = true;
return vr;
}
@ -1636,22 +1647,43 @@ static int vrrp_autoconfig_if_add(struct interface *ifp)
if (!vr) {
vr = vrrp_autoconfig_autocreate(ifp);
if (vr) {
created = true;
vrrp_zclient_send_interface_protodown(ifp, false);
}
created = true;
}
if (!vr)
return -1;
if (vr->autoconf == false)
if (!vr || vr->autoconf == false)
return 0;
else if (!created) {
if (vr->v4->mvl_ifp == ifp)
vrrp_autoconfig_autoaddrupdate(vr->v4);
else if (vr->v6->mvl_ifp == ifp)
vrrp_autoconfig_autoaddrupdate(vr->v6);
if (!created) {
/*
* We didn't create it, but it has already been autoconfigured.
* Try to attach this interface to the existing instance.
*/
if (!vr->v4->mvl_ifp) {
vrrp_attach_interface(vr->v4);
/* If we just attached it, make sure it's turned on */
if (vr->v4->mvl_ifp) {
vrrp_zclient_send_interface_protodown(
vr->v4->mvl_ifp, false);
/*
* If it's already up, we can go ahead and add
* the addresses we have
*/
vrrp_autoconfig_autoaddrupdate(vr->v4);
}
}
if (!vr->v6->mvl_ifp) {
vrrp_attach_interface(vr->v6);
/* If we just attached it, make sure it's turned on */
if (vr->v6->mvl_ifp) {
vrrp_zclient_send_interface_protodown(
vr->v6->mvl_ifp, false);
/*
* If it's already up, we can go ahead and add
* the addresses we have
*/
vrrp_autoconfig_autoaddrupdate(vr->v6);
}
}
}
return 0;