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-rw-r--r--src/vnet/dhcp/dhcp4_proxy_node.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/src/vnet/dhcp/dhcp4_proxy_node.c b/src/vnet/dhcp/dhcp4_proxy_node.c
index d0def3f740d..8a517080eae 100644
--- a/src/vnet/dhcp/dhcp4_proxy_node.c
+++ b/src/vnet/dhcp/dhcp4_proxy_node.c
@@ -746,21 +746,24 @@ VLIB_REGISTER_NODE (dhcp_proxy_to_client_node, static) = {
/* *INDENT-ON* */
void
-dhcp_maybe_register_udp_ports (void)
+dhcp_maybe_register_udp_ports (dhcp_port_reg_flags_t ports)
{
dhcp_proxy_main_t *dm = &dhcp_proxy_main;
vlib_main_t *vm = dm->vlib_main;
+ int port_regs_diff = dm->udp_ports_registered ^ ports;
- if (dm->udp_ports_registered)
+ if (!port_regs_diff)
return;
- udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_client,
- dhcp_proxy_to_client_node.index, 1 /* is_ip4 */ );
+ if ((port_regs_diff & DHCP_PORT_REG_CLIENT) & ports)
+ udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_client,
+ dhcp_proxy_to_client_node.index, 1 /* is_ip4 */ );
- udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_server,
- dhcp_proxy_to_server_node.index, 1 /* is_ip4 */ );
+ if ((port_regs_diff & DHCP_PORT_REG_SERVER) & ports)
+ udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_server,
+ dhcp_proxy_to_server_node.index, 1 /* is_ip4 */ );
- dm->udp_ports_registered = 1;
+ dm->udp_ports_registered |= ports;
}
static clib_error_t *
@@ -799,7 +802,7 @@ dhcp4_proxy_set_server (ip46_address_t * addr,
if (ip46_address_is_zero (src_addr))
return VNET_API_ERROR_INVALID_SRC_ADDRESS;
- dhcp_maybe_register_udp_ports ();
+ dhcp_maybe_register_udp_ports (DHCP_PORT_REG_CLIENT | DHCP_PORT_REG_SERVER);
rx_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
rx_table_id,