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bgpd: Allow failed hostname lookup to continue in bmp

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Add a bit of code to allow hostname lookup failure to
not stall bmp communication.

Fixes: #5382
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2019-11-20 19:13:09 -05:00
parent e302caaa81
commit a3d04c32b8
1 changed files with 19 additions and 11 deletions
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30
bgpd/bgp_bmp.c
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@ -1669,18 +1669,26 @@ static void bmp_active_resolved(struct resolver_query *resq, int numaddrs,
unsigned i;
if (numaddrs <= 0) {
zlog_warn("bmp[%s]: hostname resolution failed", ba->hostname);
ba->curretry += ba->curretry / 2;
bmp_active_setup(ba);
return;
}
if (numaddrs > (int)array_size(ba->addrs))
numaddrs = array_size(ba->addrs);
int ret;
ba->addrpos = 0;
ba->addrtotal = numaddrs;
for (i = 0; i < ba->addrtotal; i++)
memcpy(&ba->addrs[i], &addr[i], sizeof(ba->addrs[0]));
ba->addrpos = 0;
ba->addrtotal = 1;
ret = str2sockunion(ba->hostname, &ba->addrs[0]);
if (ret < 0) {
ba->addrtotal = 0;
ba->curretry += ba->curretry / 2;
bmp_active_setup(ba);
return;
}
} else {
if (numaddrs > (int)array_size(ba->addrs))
numaddrs = array_size(ba->addrs);
ba->addrpos = 0;
ba->addrtotal = numaddrs;
for (i = 0; i < ba->addrtotal; i++)
memcpy(&ba->addrs[i], &addr[i], sizeof(ba->addrs[0]));
}
bmp_active_connect(ba);
}