diff options
| author |   Dave Barach <dave@barachs.net> | 2018-10-23 10:47:36 -0400 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-10-23 21:48:22 +0000 |
| commit | 8a9566ebe0bb4644c0dbd118dc1292eca0b7d3e4 (patch) | |
| tree | 2ddb6e1c5349ebf77423bc053e84ccb47b0c36f9 /src/vnet/dhcp/dhcp4_proxy_node.c | |
| parent | bf4d5ce58435d3f424749ff69650ea67ce778f04 (diff) | |
dns, dhcp: on-demand udp port registration
Change-Id: I8bf411adc6c5f4caa349d161174b544d2de3ad1d
Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/dhcp/dhcp4_proxy_node.c')
| -rw-r--r-- | src/vnet/dhcp/dhcp4_proxy_node.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/src/vnet/dhcp/dhcp4_proxy_node.c b/src/vnet/dhcp/dhcp4_proxy_node.c index 97ed3b5920a..99e5a739f74 100644 --- a/src/vnet/dhcp/dhcp4_proxy_node.c +++ b/src/vnet/dhcp/dhcp4_proxy_node.c @@ -736,14 +736,14 @@ VLIB_REGISTER_NODE (dhcp_proxy_to_client_node, static) = { }; /* *INDENT-ON* */ -static clib_error_t * -dhcp4_proxy_init (vlib_main_t * vm) +void +dhcp_maybe_register_udp_ports (void) { dhcp_proxy_main_t *dm = &dhcp_proxy_main; - vlib_node_t *error_drop_node; + vlib_main_t *vm = dm->vlib_main; - error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop"); - dm->error_drop_node_index = error_drop_node->index; + if (dm->udp_ports_registered) + return; udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_client, dhcp_proxy_to_client_node.index, 1 /* is_ip4 */ ); @@ -751,6 +751,19 @@ dhcp4_proxy_init (vlib_main_t * vm) 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; +} + +static clib_error_t * +dhcp4_proxy_init (vlib_main_t * vm) +{ + dhcp_proxy_main_t *dm = &dhcp_proxy_main; + vlib_node_t *error_drop_node; + + error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop"); + dm->error_drop_node_index = error_drop_node->index; + dm->vlib_main = vm; + return 0; } @@ -777,6 +790,8 @@ 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 (); + rx_fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, rx_table_id, FIB_SOURCE_DHCP); |