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vrrpd: only bind to link locals for v6 adverts

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Was missing a check to make sure that the v6 address we select as the
source IP for advertisements was a link local address

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2019-02-14 23:40:20 +00:00
parent 6e93585e6f
commit 22e4b6a73d
1 changed files with 7 additions and 2 deletions
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7
vrrpd/vrrp.c
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@ -851,8 +851,13 @@ static int vrrp_bind_to_primary_connected(struct vrrp_router *r)
struct listnode *ln; struct listnode *ln;
struct connected *c = NULL; struct connected *c = NULL;
for (ALL_LIST_ELEMENTS_RO(ifp->connected, ln, c)) for (ALL_LIST_ELEMENTS_RO(ifp->connected, ln, c))
if (c->address->family == r->family) if (c->address->family == r->family) {
if (r->family == AF_INET6
&& IN6_IS_ADDR_LINKLOCAL(&c->address->u.prefix6))
break; break;
else if (r->family == AF_INET)
break;
}
if (c == NULL) { if (c == NULL) {
zlog_err(VRRP_LOGPFX VRRP_LOGPFX_VRID zlog_err(VRRP_LOGPFX VRRP_LOGPFX_VRID