From 3bd11d786e2cdbc4d7f23ebde12e1691713bdf7a Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Mon, 16 Jan 2017 18:09:40 +0100 Subject: DHCPv6 Proxy; fix crash when DHCPv6 prxy is not configured and client packet is received Change-Id: I0250acdee803545b8923549e2099863a95544691 Signed-off-by: Neale Ranns --- src/vnet/dhcpv6/proxy_node.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/vnet/dhcpv6/proxy_node.c b/src/vnet/dhcpv6/proxy_node.c index 40df35cd..4dd2239f 100644 --- a/src/vnet/dhcpv6/proxy_node.c +++ b/src/vnet/dhcpv6/proxy_node.c @@ -244,7 +244,11 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm, /* Send to DHCPV6 server via the configured FIB */ rx_sw_if_index = sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX]; rx_fib_idx = im->fib_index_by_sw_if_index [rx_sw_if_index]; - server_idx = dpm->dhcp6_server_index_by_rx_fib_index[rx_fib_idx]; + + if (vec_len(dpm->dhcp6_server_index_by_rx_fib_index) <= rx_fib_idx) + goto no_server; + + server_idx = dpm->dhcp6_server_index_by_rx_fib_index[rx_fib_idx]; if (PREDICT_FALSE (pool_is_free_index (dpm->dhcp6_servers, server_idx))) -- cgit 1.2.3-korg