+++ /dev/null
-/*
- * proxy_node.c: dhcpv6 proxy node processing
- *
- * Copyright (c) 2013 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <vlib/vlib.h>
-#include <vnet/pg/pg.h>
-#include <vnet/dhcpv6/proxy.h>
-#include <vnet/dhcp/proxy.h>
-#include <vnet/fib/ip6_fib.h>
-#include <vnet/mfib/mfib_table.h>
-#include <vnet/mfib/ip6_mfib.h>
-
-static char * dhcpv6_proxy_error_strings[] = {
-#define dhcpv6_proxy_error(n,s) s,
-#include "proxy_error.def"
-#undef dhcpv6_proxy_error
-};
-
-#define foreach_dhcpv6_proxy_to_server_input_next \
- _ (DROP, "error-drop") \
- _ (LOOKUP, "ip6-lookup") \
- _ (SEND_TO_CLIENT, "dhcpv6-proxy-to-client")
-
-
-typedef enum {
-#define _(s,n) DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_##s,
- foreach_dhcpv6_proxy_to_server_input_next
-#undef _
- DHCPV6_PROXY_TO_SERVER_INPUT_N_NEXT,
-} dhcpv6_proxy_to_server_input_next_t;
-
-typedef struct {
- /* 0 => to server, 1 => to client */
- int which;
- u8 packet_data[64];
- u32 error;
- u32 sw_if_index;
- u32 original_sw_if_index;
-} dhcpv6_proxy_trace_t;
-
-vlib_node_registration_t dhcpv6_proxy_to_server_node;
-vlib_node_registration_t dhcpv6_proxy_to_client_node;
-
-
-u8 * format_dhcpv6_proxy_trace (u8 * s, va_list * args)
-{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- dhcpv6_proxy_trace_t * t = va_arg (*args, dhcpv6_proxy_trace_t *);
-
- if (t->which == 0)
- s = format (s, "DHCPV6 proxy: sent to server %U",
- format_ip6_address, &t->packet_data, sizeof (ip6_address_t));
- else
- s = format (s, "DHCPV6 proxy: sent to client from %U",
- format_ip6_address, &t->packet_data, sizeof (ip6_address_t));
- if (t->error != (u32)~0)
- s = format (s, " error: %s\n", dhcpv6_proxy_error_strings[t->error]);
-
- s = format (s, " original_sw_if_index: %d, sw_if_index: %d\n",
- t->original_sw_if_index, t->sw_if_index);
-
- return s;
-}
-
-u8 * format_dhcpv6_proxy_header_with_length (u8 * s, va_list * args)
-{
- dhcpv6_header_t * h = va_arg (*args, dhcpv6_header_t *);
- u32 max_header_bytes = va_arg (*args, u32);
- u32 header_bytes;
-
- header_bytes = sizeof (h[0]);
- if (max_header_bytes != 0 && header_bytes > max_header_bytes)
- return format (s, "dhcpv6 header truncated");
-
- s = format (s, "DHCPV6 Proxy");
-
- return s;
-}
-/* get first interface address */
-static ip6_address_t *
-ip6_interface_first_global_or_site_address (ip6_main_t * im, u32 sw_if_index)
-{
- ip_lookup_main_t * lm = &im->lookup_main;
- ip_interface_address_t * ia = 0;
- ip6_address_t * result = 0;
-
- foreach_ip_interface_address (lm, ia, sw_if_index,
- 1 /* honor unnumbered */,
- ({
- ip6_address_t * a = ip_interface_address_get_address (lm, ia);
- if ((a->as_u8[0] & 0xe0) == 0x20 ||
- (a->as_u8[0] & 0xfe) == 0xfc) {
- result = a;
- break;
- }
- }));
- return result;
-}
-
-static inline void copy_ip6_address (ip6_address_t *dst, ip6_address_t *src)
-{
-
- dst->as_u64[0] = src->as_u64[0];
- dst->as_u64[1] = src->as_u64[1];
-}
-
-static inline dhcpv6_vss_info *
-dhcpv6_get_vss_info (dhcpv6_proxy_main_t *dm,
- u32 rx_fib_index)
-{
- dhcpv6_vss_info *v;
-
- if (vec_len(dm->vss_index_by_rx_fib_index) <= rx_fib_index ||
- dm->vss_index_by_rx_fib_index[rx_fib_index] == ~0)
- {
- v = NULL;
- }
- else
- {
- v = pool_elt_at_index (dm->vss,
- dm->vss_index_by_rx_fib_index[rx_fib_index]);
- }
-
- return (v);
-}
-
-static inline dhcpv6_server_t *
-dhcpv6_get_server (dhcpv6_proxy_main_t *dm,
- u32 rx_fib_index)
-{
- dhcpv6_server_t *s = NULL;
-
- if (vec_len(dm->dhcp6_server_index_by_rx_fib_index) > rx_fib_index &&
- dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] != ~0)
- {
- s = pool_elt_at_index (dm->dhcp6_servers,
- dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index]);
- }
-
- return (s);
-}
-
-static uword
-dhcpv6_proxy_to_server_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- u32 n_left_from, next_index, * from, * to_next;
- dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main;
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
- u32 pkts_to_server=0, pkts_to_client=0, pkts_no_server=0;
- u32 pkts_no_interface_address=0, pkts_no_exceeding_max_hop=0;
- u32 pkts_no_src_address=0;
- u32 pkts_wrong_msg_type=0;
- u32 pkts_too_big=0;
- ip6_main_t * im = &ip6_main;
- ip6_address_t * src;
- int bogus_length;
- dhcpv6_server_t * server;
- u32 rx_fib_idx = 0, server_fib_idx = 0;
-
- next_index = node->cached_next_index;
-
- while (n_left_from > 0)
- {
- u32 n_left_to_next;
-
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- vnet_main_t *vnm = vnet_get_main();
- u32 sw_if_index = 0;
- u32 rx_sw_if_index = 0;
- vnet_sw_interface_t *swif;
- u32 bi0;
- vlib_buffer_t * b0;
- udp_header_t * u0, *u1;
- dhcpv6_header_t * h0; // client msg hdr
- ip6_header_t * ip0, *ip1;
- ip6_address_t _ia0, *ia0=&_ia0;
- u32 next0;
- u32 error0 = (u32) ~0;
- dhcpv6_option_t *fwd_opt;
- dhcpv6_relay_hdr_t *r1;
- u16 len;
- dhcpv6_int_id_t *id1;
- dhcpv6_vss_t *vss1;
- dhcpv6_client_mac_t *cmac; // client mac
- ethernet_header_t * e_h0;
- u8 client_src_mac[6];
- vlib_buffer_free_list_t *fl;
- dhcpv6_vss_info *vss;
-
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- h0 = vlib_buffer_get_current (b0);
-
- /*
- * udp_local hands us the DHCPV6 header.
- */
- u0 = (void *)h0 -(sizeof(*u0));
- ip0 = (void *)u0 -(sizeof(*ip0));
- e_h0 = (void *)ip0 - ethernet_buffer_header_size(b0);
-
- clib_memcpy(client_src_mac, e_h0->src_address, 6);
-
- switch (h0->u.msg_type) {
- case DHCPV6_MSG_SOLICIT:
- case DHCPV6_MSG_REQUEST:
- case DHCPV6_MSG_CONFIRM:
- case DHCPV6_MSG_RENEW:
- case DHCPV6_MSG_REBIND:
- case DHCPV6_MSG_RELEASE:
- case DHCPV6_MSG_DECLINE:
- case DHCPV6_MSG_INFORMATION_REQUEST:
- case DHCPV6_MSG_RELAY_FORW:
- /* send to server */
- break;
- case DHCPV6_MSG_RELAY_REPL:
- /* send to client */
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_SEND_TO_CLIENT;
- error0 = 0;
- pkts_to_client++;
- goto do_enqueue;
- default:
- /* drop the packet */
- pkts_wrong_msg_type++;
- error0 = DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- goto do_trace;
-
- }
-
- /* 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 = dhcpv6_get_server(dpm, rx_fib_idx);
-
- if (PREDICT_FALSE (NULL == server))
- {
- error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_server++;
- goto do_trace;
- }
-
- server_fib_idx = server->server_fib6_index;
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = server_fib_idx;
-
-
- /* relay-option header pointer */
- vlib_buffer_advance(b0, -(sizeof(*fwd_opt)));
- fwd_opt = vlib_buffer_get_current(b0);
- /* relay message header pointer */
- vlib_buffer_advance(b0, -(sizeof(*r1)));
- r1 = vlib_buffer_get_current(b0);
-
- vlib_buffer_advance(b0, -(sizeof(*u1)));
- u1 = vlib_buffer_get_current(b0);
-
- vlib_buffer_advance(b0, -(sizeof(*ip1)));
- ip1 = vlib_buffer_get_current(b0);
-
- /* fill in all that rubbish... */
- len = clib_net_to_host_u16(u0->length) - sizeof(udp_header_t);
- copy_ip6_address(&r1->peer_addr, &ip0->src_address);
-
- r1->msg_type = DHCPV6_MSG_RELAY_FORW;
- fwd_opt->length = clib_host_to_net_u16(len);
- fwd_opt->option = clib_host_to_net_u16(DHCPV6_OPTION_RELAY_MSG);
-
- r1->hop_count++;
- r1->hop_count = (h0->u.msg_type != DHCPV6_MSG_RELAY_FORW) ? 0 : r1->hop_count;
-
- if (PREDICT_FALSE(r1->hop_count >= HOP_COUNT_LIMIT))
- {
- error0 = DHCPV6_RELAY_PKT_DROP_MAX_HOPS;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_exceeding_max_hop++;
- goto do_trace;
- }
-
-
- /* If relay-fwd and src address is site or global unicast address */
- if (h0->u.msg_type == DHCPV6_MSG_RELAY_FORW &&
- ((ip0->src_address.as_u8[0] & 0xe0) == 0x20 ||
- (ip0->src_address.as_u8[0] & 0xfe) == 0xfc))
- {
- /* Set link address to zero */
- r1->link_addr.as_u64[0] = 0;
- r1->link_addr.as_u64[1] = 0;
- goto link_address_set;
- }
-
- /* if receiving interface is unnumbered, use receiving interface
- * IP address as link address, otherwise use the loopback interface
- * IP address as link address.
- */
-
- swif = vnet_get_sw_interface (vnm, rx_sw_if_index);
- if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
-
- ia0 = ip6_interface_first_global_or_site_address(&ip6_main, sw_if_index);
- if (ia0 == 0)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_interface_address++;
- goto do_trace;
- }
-
- copy_ip6_address(&r1->link_addr, ia0);
-
- link_address_set:
- fl = vlib_buffer_get_free_list (vm, b0->free_list_index);
-
- if ((b0->current_length+sizeof(*id1)+sizeof(*vss1)+sizeof(*cmac))
- > fl->n_data_bytes)
- {
- error0 = DHCPV6_PROXY_ERROR_PKT_TOO_BIG;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_too_big++;
- goto do_trace;
- }
-
- id1 = (dhcpv6_int_id_t *) (((uword) ip1) + b0->current_length);
- b0->current_length += (sizeof (*id1));
-
- id1->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_INTERFACE_ID);
- id1->opt.length = clib_host_to_net_u16(sizeof(rx_sw_if_index));
- id1->int_idx = clib_host_to_net_u32(rx_sw_if_index);
-
- u1->length =0;
- if (h0->u.msg_type != DHCPV6_MSG_RELAY_FORW)
- {
- cmac = (dhcpv6_client_mac_t *) (((uword) ip1) + b0->current_length);
- b0->current_length += (sizeof (*cmac));
- cmac->opt.length =clib_host_to_net_u16(sizeof(*cmac) -
- sizeof(cmac->opt));
- cmac->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_CLIENT_LINK_LAYER_ADDRESS);
- cmac->link_type = clib_host_to_net_u16(1); // ethernet
- clib_memcpy(cmac->data, client_src_mac, 6);
- u1->length += sizeof(*cmac);
- }
-
- //TODO: Revisit if hash makes sense here
- vss = dhcpv6_get_vss_info(dpm, rx_fib_idx);
-
- if (NULL != vss) {
- vss1 = (dhcpv6_vss_t *) (((uword) ip1) + b0->current_length);
- b0->current_length += (sizeof (*vss1));
- vss1->opt.length =clib_host_to_net_u16(sizeof(*vss1) -
- sizeof(vss1->opt));
- vss1->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_VSS);
- vss1->data[0] = 1; // type
- vss1->data[1] = vss->vpn_id.oui >>16 & 0xff;
- vss1->data[2] = vss->vpn_id.oui >>8 & 0xff;
- vss1->data[3] = vss->vpn_id.oui & 0xff;
- vss1->data[4] = vss->vpn_id.fib_id >> 24 & 0xff;
- vss1->data[5] = vss->vpn_id.fib_id >> 16 & 0xff;
- vss1->data[6] = vss->vpn_id.fib_id >> 8 & 0xff;
- vss1->data[7] = vss->vpn_id.fib_id & 0xff;
- u1->length += sizeof(*vss1);
- }
-
- pkts_to_server++;
- u1->checksum = 0;
- u1->src_port = clib_host_to_net_u16(UDP_DST_PORT_dhcpv6_to_client);
- u1->dst_port = clib_host_to_net_u16(UDP_DST_PORT_dhcpv6_to_server);
-
- u1->length =
- clib_host_to_net_u16( clib_net_to_host_u16(fwd_opt->length) +
- sizeof(*r1) + sizeof(*fwd_opt) +
- sizeof(*u1) + sizeof(*id1) + u1->length);
-
- memset(ip1, 0, sizeof(*ip1));
- ip1->ip_version_traffic_class_and_flow_label = 0x60;
- ip1->payload_length = u1->length;
- ip1->protocol = PROTO_UDP;
- ip1->hop_limit = HOP_COUNT_LIMIT;
- src = (server->dhcp6_server.as_u64[0] || server->dhcp6_server.as_u64[1]) ?
- &server->dhcp6_server : &dpm->all_dhcpv6_server_address;
- copy_ip6_address(&ip1->dst_address, src);
-
-
- ia0 = ip6_interface_first_global_or_site_address
- (&ip6_main, vnet_buffer(b0)->sw_if_index[VLIB_RX]);
-
- src = (server->dhcp6_src_address.as_u64[0] || server->dhcp6_src_address.as_u64[1]) ?
- &server->dhcp6_src_address : ia0;
- if (ia0 == 0)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS;
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_src_address++;
- goto do_trace;
- }
-
- copy_ip6_address (&ip1->src_address, src);
-
-
- u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
- &bogus_length);
- ASSERT(bogus_length == 0);
-
- next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
-
- do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
- tr->which = 0; /* to server */
- tr->error = error0;
- tr->original_sw_if_index = rx_sw_if_index;
- tr->sw_if_index = sw_if_index;
- if (DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP == next0)
- copy_ip6_address((ip6_address_t *)&tr->packet_data[0], &server->dhcp6_server);
- }
-
- do_enqueue:
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_RELAY_TO_CLIENT,
- pkts_to_client);
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_RELAY_TO_SERVER,
- pkts_to_server);
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS,
- pkts_no_interface_address);
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE,
- pkts_wrong_msg_type);
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS,
- pkts_no_src_address);
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_server_node.index,
- DHCPV6_PROXY_ERROR_PKT_TOO_BIG,
- pkts_too_big);
- return from_frame->n_vectors;
-}
-
-VLIB_REGISTER_NODE (dhcpv6_proxy_to_server_node) = {
- .function = dhcpv6_proxy_to_server_input,
- .name = "dhcpv6-proxy-to-server",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
-
- .n_errors = DHCPV6_PROXY_N_ERROR,
- .error_strings = dhcpv6_proxy_error_strings,
-
- .n_next_nodes = DHCPV6_PROXY_TO_SERVER_INPUT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_##s] = n,
- foreach_dhcpv6_proxy_to_server_input_next
-#undef _
- },
-
- .format_buffer = format_dhcpv6_proxy_header_with_length,
- .format_trace = format_dhcpv6_proxy_trace,
-#if 0
- .unformat_buffer = unformat_dhcpv6_proxy_header,
-#endif
-};
-
-static uword
-dhcpv6_proxy_to_client_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
-
- u32 n_left_from, * from;
- ethernet_main_t *em = ethernet_get_main (vm);
- dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
- dhcpv6_server_t * server;
- vnet_main_t * vnm = vnet_get_main();
- int bogus_length;
-
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
-
- while (n_left_from > 0)
- {
- u32 bi0;
- vlib_buffer_t * b0;
- udp_header_t * u0, *u1=0;
- dhcpv6_relay_hdr_t * h0;
- ip6_header_t * ip1 = 0, *ip0;
- ip6_address_t _ia0, * ia0 = &_ia0;
- ip6_address_t client_address;
- ethernet_interface_t *ei0;
- ethernet_header_t *mac0;
- vnet_hw_interface_t *hi0;
- vlib_frame_t *f0;
- u32 * to_next0;
- u32 sw_if_index = ~0;
- u32 original_sw_if_index = ~0;
- vnet_sw_interface_t *si0;
- u32 error0 = (u32)~0;
- vnet_sw_interface_t *swif;
- dhcpv6_option_t *r0 = 0, *o;
- u16 len = 0;
- u8 interface_opt_flag = 0;
- u8 relay_msg_opt_flag = 0;
- ip6_main_t * im = &ip6_main;
- u32 server_fib_idx, client_fib_idx;
-
- bi0 = from[0];
- from += 1;
- n_left_from -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
- h0 = vlib_buffer_get_current (b0);
-
- if (DHCPV6_MSG_RELAY_REPL != h0->msg_type)
- {
- error0 = DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE;
-
- drop_packet:
- vlib_node_increment_counter (vm, dhcpv6_proxy_to_client_node.index,
- error0, 1);
-
- f0 = vlib_get_frame_to_node (vm, dm->error_drop_node_index);
- to_next0 = vlib_frame_vector_args (f0);
- to_next0[0] = bi0;
- f0->n_vectors = 1;
- vlib_put_frame_to_node (vm, dm->error_drop_node_index, f0);
- goto do_trace;
- }
- /* hop count seems not need to be checked */
- if (HOP_COUNT_LIMIT < h0->hop_count)
- {
- error0 = DHCPV6_RELAY_PKT_DROP_MAX_HOPS;
- goto drop_packet;
- }
- u0 = (void *)h0 -(sizeof(*u0));
- ip0 = (void *)u0 -(sizeof(*ip0));
-
- vlib_buffer_advance (b0, sizeof(*h0));
- o = vlib_buffer_get_current (b0);
-
- /* Parse through TLVs looking for option 18 (DHCPV6_OPTION_INTERFACE_ID)
- _and_ option 9 (DHCPV6_OPTION_RELAY_MSG) option which must be there.
- Currently assuming no other options need to be processed
- The interface-ID is the FIB number we need
- to track down the client-facing interface */
-
- while ((u8 *) o < (b0->data + b0->current_data + b0->current_length))
- {
- if (DHCPV6_OPTION_INTERFACE_ID == clib_net_to_host_u16(o->option))
- {
- interface_opt_flag = 1;
- if (clib_net_to_host_u16(o->length) == sizeof(sw_if_index))
- sw_if_index = clib_net_to_host_u32(((dhcpv6_int_id_t*)o)->int_idx);
- if (sw_if_index >= vec_len (im->fib_index_by_sw_if_index))
- {
- error0 = DHCPV6_PROXY_ERROR_WRONG_INTERFACE_ID_OPTION;
- goto drop_packet;
- }
- }
- if (DHCPV6_OPTION_RELAY_MSG == clib_net_to_host_u16(o->option))
- {
- relay_msg_opt_flag = 1;
- r0 = vlib_buffer_get_current (b0);
- }
- if ((relay_msg_opt_flag == 1) && (interface_opt_flag == 1))
- break;
- vlib_buffer_advance (b0, sizeof(*o) + clib_net_to_host_u16(o->length));
- o = (dhcpv6_option_t *) (((uword) o) + clib_net_to_host_u16(o->length) + sizeof(*o));
- }
-
- if ((relay_msg_opt_flag == 0) || (r0 == 0))
- {
- error0 = DHCPV6_PROXY_ERROR_NO_RELAY_MESSAGE_OPTION;
- goto drop_packet;
- }
-
- if ((u32)~0 == sw_if_index)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_CIRCUIT_ID_OPTION;
- goto drop_packet;
- }
-
- //Advance buffer to start of encapsulated DHCPv6 message
- vlib_buffer_advance (b0, sizeof(*r0));
-
- client_fib_idx = im->fib_index_by_sw_if_index[sw_if_index];
- server = dhcpv6_get_server(dm, client_fib_idx);
-
- if (NULL == server)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
- goto drop_packet;
- }
-
- server_fib_idx = im->fib_index_by_sw_if_index
- [vnet_buffer(b0)->sw_if_index[VLIB_RX]];
-
- if (server_fib_idx != server->server_fib6_index ||
- ip0->src_address.as_u64[0] != server->dhcp6_server.as_u64[0] ||
- ip0->src_address.as_u64[1] != server->dhcp6_server.as_u64[1])
- {
- //drop packet if not from server with configured address or FIB
- error0 = DHCPV6_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS;
- goto drop_packet;
- }
-
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = original_sw_if_index
- = sw_if_index;
-
- swif = vnet_get_sw_interface (vnm, original_sw_if_index);
- if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
-
-
- /*
- * udp_local hands us the DHCPV6 header, need udp hdr,
- * ip hdr to relay to client
- */
- vlib_buffer_advance (b0, -(sizeof(*u1)));
- u1 = vlib_buffer_get_current (b0);
-
- vlib_buffer_advance (b0, -(sizeof(*ip1)));
- ip1 = vlib_buffer_get_current (b0);
-
- copy_ip6_address(&client_address, &h0->peer_addr);
-
- ia0 = ip6_interface_first_address (&ip6_main, sw_if_index);
- if (ia0 == 0)
- {
- error0 = DHCPV6_PROXY_ERROR_NO_INTERFACE_ADDRESS;
- goto drop_packet;
- }
-
- len = clib_net_to_host_u16(r0->length);
- memset(ip1, 0, sizeof(*ip1));
- copy_ip6_address(&ip1->dst_address, &client_address);
- u1->checksum = 0;
- u1->src_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcpv6_to_server);
- u1->dst_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcpv6_to_client);
- u1->length = clib_host_to_net_u16 (len + sizeof(udp_header_t));
-
- ip1->ip_version_traffic_class_and_flow_label =
- ip0->ip_version_traffic_class_and_flow_label &
- 0x00000fff;
- ip1->payload_length = u1->length;
- ip1->protocol = PROTO_UDP;
- ip1->hop_limit = HOP_COUNT_LIMIT;
- copy_ip6_address(&ip1->src_address, ia0);
-
- u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
- &bogus_length);
- ASSERT(bogus_length == 0);
-
- vlib_buffer_advance (b0, -(sizeof(ethernet_header_t)));
- si0 = vnet_get_sw_interface (vnm, original_sw_if_index);
- if (si0->type == VNET_SW_INTERFACE_TYPE_SUB)
- vlib_buffer_advance (b0, -4 /* space for VLAN tag */);
-
- mac0 = vlib_buffer_get_current (b0);
-
- hi0 = vnet_get_sup_hw_interface (vnm, original_sw_if_index);
- ei0 = pool_elt_at_index (em->interfaces, hi0->hw_instance);
- clib_memcpy (mac0->src_address, ei0->address, sizeof (ei0->address));
- memset (&mac0->dst_address, 0xff, sizeof (mac0->dst_address));
- mac0->type = (si0->type == VNET_SW_INTERFACE_TYPE_SUB) ?
- clib_net_to_host_u16(0x8100) : clib_net_to_host_u16 (0x86dd);
-
- if (si0->type == VNET_SW_INTERFACE_TYPE_SUB)
- {
- u32 * vlan_tag = (u32 *)(mac0+1);
- u32 tmp;
- tmp = (si0->sub.id << 16) | 0x0800;
- *vlan_tag = clib_host_to_net_u32 (tmp);
- }
-
- /* $$$ consider adding a dynamic next to the graph node, for performance */
- f0 = vlib_get_frame_to_node (vm, hi0->output_node_index);
- to_next0 = vlib_frame_vector_args (f0);
- to_next0[0] = bi0;
- f0->n_vectors = 1;
- vlib_put_frame_to_node (vm, hi0->output_node_index, f0);
-
- do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
- tr->which = 1; /* to client */
- if (ia0)
- copy_ip6_address((ip6_address_t*)tr->packet_data, ia0);
- tr->error = error0;
- tr->original_sw_if_index = original_sw_if_index;
- tr->sw_if_index = sw_if_index;
- }
- }
- return from_frame->n_vectors;
-
-}
-
-VLIB_REGISTER_NODE (dhcpv6_proxy_to_client_node) = {
- .function = dhcpv6_proxy_to_client_input,
- .name = "dhcpv6-proxy-to-client",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
-
- .n_errors = DHCPV6_PROXY_N_ERROR,
- .error_strings = dhcpv6_proxy_error_strings,
- .format_buffer = format_dhcpv6_proxy_header_with_length,
- .format_trace = format_dhcpv6_proxy_trace,
-#if 0
- .unformat_buffer = unformat_dhcpv6_proxy_header,
-#endif
-};
-
-clib_error_t * dhcpv6_proxy_init (vlib_main_t * vm)
-{
- dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
- vlib_node_t * error_drop_node;
- dhcpv6_server_t * server;
-
- dm->vlib_main = vm;
- dm->vnet_main = vnet_get_main();
- error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
- dm->error_drop_node_index = error_drop_node->index;
-
- dm->vss_index_by_rx_fib_index = NULL;
-
- /* RFC says this is the dhcpv6 server address */
- dm->all_dhcpv6_server_address.as_u64[0] = clib_host_to_net_u64 (0xFF05000000000000);
- dm->all_dhcpv6_server_address.as_u64[1] = clib_host_to_net_u64 (0x00010003);
-
- /* RFC says this is the server and agent address */
- dm->all_dhcpv6_server_relay_agent_address.as_u64[0] = clib_host_to_net_u64 (0xFF02000000000000);
- dm->all_dhcpv6_server_relay_agent_address.as_u64[1] = clib_host_to_net_u64 (0x00010002);
-
- udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_client,
- dhcpv6_proxy_to_client_node.index, 0 /* is_ip6 */);
-
- udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_server,
- dhcpv6_proxy_to_server_node.index, 0 /* is_ip6 */);
-
- /* Create the default server, don't mark it valid */
- pool_get (dm->dhcp6_servers, server);
- memset (server, 0, sizeof (*server));
-
- return 0;
-}
-
-VLIB_INIT_FUNCTION (dhcpv6_proxy_init);
-
-int dhcpv6_proxy_set_server (ip6_address_t *addr,
- ip6_address_t *src_address,
- u32 rx_fib_id,
- u32 server_fib_id,
- int is_del)
-{
- dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
- dhcpv6_server_t * server = 0;
- u32 rx_fib_index = 0;
- int rc = 0;
-
- rx_fib_index = ip6_mfib_table_find_or_create_and_lock(rx_fib_id);
-
- const mfib_prefix_t all_dhcp_servers = {
- .fp_len = 128,
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_grp_addr = {
- .ip6 = dm->all_dhcpv6_server_relay_agent_address,
- }
- };
-
- if (is_del)
- {
- server = dhcpv6_get_server(dm, rx_fib_index);
-
- if (NULL == server)
- {
- rc = VNET_API_ERROR_NO_SUCH_ENTRY;
- goto out;
- }
-
- /*
- * release the locks held on the server fib and rx mfib
- */
- mfib_table_entry_delete(rx_fib_index,
- &all_dhcp_servers,
- MFIB_SOURCE_DHCP);
- mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6);
- fib_table_unlock(server->server_fib6_index, FIB_PROTOCOL_IP6);
-
- dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] = ~0;
-
- memset (server, 0, sizeof (*server));
- pool_put (dm->dhcp6_servers, server);
- }
- else
- {
- if (addr->as_u64[0] == 0 &&
- addr->as_u64[1] == 0 )
- {
- rc = VNET_API_ERROR_INVALID_DST_ADDRESS;
- goto out;
- }
- if (src_address->as_u64[0] == 0 &&
- src_address->as_u64[1] == 0)
- {
- rc = VNET_API_ERROR_INVALID_SRC_ADDRESS;
- goto out;
- }
-
- server = dhcpv6_get_server(dm, rx_fib_index);
-
- if (NULL != server)
- {
- /* modify of an existing entry */
- ip6_fib_t *fib;
-
- fib = ip6_fib_get(server->server_fib6_index);
-
- if (fib->table_id != server_fib_id)
- {
- /* swap tables */
- fib_table_unlock(server->server_fib6_index, FIB_PROTOCOL_IP6);
- server->server_fib6_index =
- ip6_fib_table_find_or_create_and_lock(server_fib_id);
- }
- }
- else
- {
- /* Allocate a new server */
- pool_get (dm->dhcp6_servers, server);
-
- vec_validate_init_empty (dm->dhcp6_server_index_by_rx_fib_index,
- rx_fib_index, ~0);
- dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] =
- server - dm->dhcp6_servers;
-
- server->server_fib6_index =
- ip6_fib_table_find_or_create_and_lock(server_fib_id);
- mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6);
-
- const mfib_prefix_t all_dhcp_servers = {
- .fp_len = 128,
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_grp_addr = {
- .ip6 = dm->all_dhcpv6_server_relay_agent_address,
- }
- };
- const fib_route_path_t path_for_us = {
- .frp_proto = FIB_PROTOCOL_IP6,
- .frp_addr = zero_addr,
- .frp_sw_if_index = 0xffffffff,
- .frp_fib_index = ~0,
- .frp_weight = 0,
- .frp_flags = FIB_ROUTE_PATH_LOCAL,
- };
- mfib_table_entry_path_update(rx_fib_index,
- &all_dhcp_servers,
- MFIB_SOURCE_DHCP,
- &path_for_us,
- MFIB_ITF_FLAG_FORWARD);
- /*
- * Each interface that is enabled in this table, needs to be added
- * as an accepting interface, but this is not easily doable in VPP.
- * So we cheat. Add a flag to the entry that indicates accept form
- * any interface.
- * We will still only accept on v6 enabled interfaces, since the
- * input feature ensures this.
- */
- mfib_table_entry_update(rx_fib_index,
- &all_dhcp_servers,
- MFIB_SOURCE_DHCP,
- MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
- }
- copy_ip6_address(&server->dhcp6_server, addr);
- copy_ip6_address(&server->dhcp6_src_address, src_address);
- }
-
-out:
- mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6);
-
- return (rc);
-}
-
-static clib_error_t *
-dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- ip6_address_t addr, src_addr;
- int set_server = 0, set_src_address = 0;
- u32 rx_fib_id = 0, server_fib_id = 0;
- int is_del = 0;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "server %U",
- unformat_ip6_address, &addr))
- set_server = 1;
- else if (unformat(input, "src-address %U",
- unformat_ip6_address, &src_addr))
- set_src_address =1;
- else if (unformat (input, "server-fib-id %d", &server_fib_id))
- ;
- else if (unformat (input, "rx-fib-id %d", &rx_fib_id))
- ;
- else if (unformat (input, "delete") ||
- unformat (input, "del"))
- is_del = 1;
- else
- break;
- }
-
- if (is_del || (set_server && set_src_address))
- {
- int rv;
-
- rv = dhcpv6_proxy_set_server (&addr, &src_addr, rx_fib_id,
- server_fib_id, is_del);
-
- //TODO: Complete the errors
- switch (rv)
- {
- case 0:
- return 0;
-
- case -1:
- return clib_error_return (0, "FIB id %d does not exist", server_fib_id);
-
- default:
- return clib_error_return (0, "BUG: rv %d", rv);
- }
- }
- else
- return clib_error_return (0, "parse error`%U'",
- format_unformat_error, input);
-}
-
-VLIB_CLI_COMMAND (dhcpv6_proxy_set_command, static) = {
- .path = "set dhcpv6 proxy",
- .short_help = "set dhcpv6 proxy [del] server <ipv6-addr> src-address <ipv6-addr> "
- "[server-fib-id <fib-id>] [rx-fib-id <fib-id>] ",
- .function = dhcpv6_proxy_set_command_fn,
-};
-
-u8 * format_dhcpv6_proxy_server (u8 * s, va_list * args)
-{
- dhcpv6_proxy_main_t * dm = va_arg (*args, dhcpv6_proxy_main_t *);
- dhcpv6_server_t * server = va_arg (*args, dhcpv6_server_t *);
- u32 rx_fib_index = va_arg (*args, u32);
- ip6_fib_t * rx_fib, * server_fib;
- u32 server_fib_id = (u32)~0, rx_fib_id = ~0;
-
- if (dm == 0)
- {
- s = format (s, "%=40s%=40s%=14s%=14s", "Server Address", "Source Address",
- "Server FIB", "RX FIB");
- return s;
- }
-
- server_fib = ip6_fib_get(server->server_fib6_index);
- if (server_fib)
- server_fib_id= server_fib->table_id;
-
- rx_fib= ip6_fib_get(rx_fib_index);
-
- if (rx_fib)
- rx_fib_id = rx_fib->table_id;
-
- s = format (s, "%=40U%=40U%=14u%=14u",
- format_ip6_address, &server->dhcp6_server,
- format_ip6_address, &server->dhcp6_src_address,
- server_fib_id, rx_fib_id);
- return s;
-}
-
-static clib_error_t *
-dhcpv6_proxy_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main;
- int i;
- u32 server_index;
- dhcpv6_server_t * server;
-
- vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, 0 /* header line */,
- 0, 0);
- vec_foreach_index (i, dpm->dhcp6_server_index_by_rx_fib_index)
- {
- server_index = dpm->dhcp6_server_index_by_rx_fib_index[i];
- if (~0 == server_index)
- continue;
-
- server = pool_elt_at_index (dpm->dhcp6_servers, server_index);
-
- vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, dpm,
- server, i);
- }
-
- return 0;
-}
-
-VLIB_CLI_COMMAND (dhcpv6_proxy_show_command, static) = {
- .path = "show dhcpv6 proxy",
- .short_help = "Display dhcpv6 proxy info",
- .function = dhcpv6_proxy_show_command_fn,
-};
-
-void
-dhcpv6_proxy_dump (void *opaque,
- u32 context)
-{
- dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main;
- ip6_fib_t *s_fib, *r_fib;
- dhcpv6_server_t * server;
- u32 server_index, i;
- dhcpv6_vss_info *v;
-
- vec_foreach_index (i, dpm->dhcp6_server_index_by_rx_fib_index)
- {
- server_index = dpm->dhcp6_server_index_by_rx_fib_index[i];
- if (~0 == server_index)
- continue;
-
- server = pool_elt_at_index (dpm->dhcp6_servers, server_index);
- v = dhcpv6_get_vss_info(dpm, i);
-
- ip46_address_t src_addr = {
- .ip6 = server->dhcp6_src_address,
- };
- ip46_address_t server_addr = {
- .ip6 = server->dhcp6_server,
- };
-
- s_fib = ip6_fib_get(server->server_fib6_index);
- r_fib = ip6_fib_get(i);
-
- dhcp_send_details(opaque,
- context,
- &server_addr,
- &src_addr,
- s_fib->table_id,
- r_fib->table_id,
- (v ? v->vpn_id.fib_id : 0),
- (v ? v->vpn_id.oui : 0));
- }
-}
-
-int dhcpv6_proxy_set_vss(u32 tbl_id,
- u32 oui,
- u32 fib_id,
- int is_del)
-{
- dhcpv6_proxy_main_t *dm = &dhcpv6_proxy_main;
- dhcpv6_vss_info *v = NULL;
- u32 rx_fib_index;
- int rc = 0;
-
- rx_fib_index = ip6_fib_table_find_or_create_and_lock(tbl_id);
- v = dhcpv6_get_vss_info(dm, rx_fib_index);
-
- if (NULL != v)
- {
- if (is_del)
- {
- /* release the lock held on the table when the VSS
- * info was created */
- fib_table_unlock (rx_fib_index,
- FIB_PROTOCOL_IP6);
-
- pool_put (dm->vss, v);
- dm->vss_index_by_rx_fib_index[rx_fib_index] = ~0;
- }
- else
- {
- /* this is a modify */
- v->vpn_id.fib_id = fib_id;
- v->vpn_id.oui = oui;
- }
- }
- else
- {
- if (is_del)
- rc = VNET_API_ERROR_NO_SUCH_ENTRY;
- else
- {
- /* create a new entry */
- vec_validate_init_empty(dm->vss_index_by_rx_fib_index,
- rx_fib_index, ~0);
-
- /* hold a lock on the table whilst the VSS info exist */
- fib_table_lock (rx_fib_index,
- FIB_PROTOCOL_IP6);
-
- pool_get (dm->vss, v);
- v->vpn_id.fib_id = fib_id;
- v->vpn_id.oui = oui;
- dm->vss_index_by_rx_fib_index[rx_fib_index] = v - dm->vss;
- }
- }
-
- /* Release the lock taken during the create_or_lock at the start */
- fib_table_unlock (rx_fib_index,
- FIB_PROTOCOL_IP6);
-
- return (rc);
-}
-
-
-static clib_error_t *
-dhcpv6_vss_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- int is_del = 0, got_new_vss=0;
- u32 oui=0;
- u32 fib_id=0, tbl_id=~0;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "oui %d", &oui))
- got_new_vss = 1;
- else if (unformat (input, "vpn-id %d", &fib_id))
- got_new_vss = 1;
- else if (unformat (input, "table %d", &tbl_id))
- got_new_vss = 1;
- else if (unformat(input, "delete") || unformat(input, "del"))
- is_del = 1;
- else
- break;
- }
-
- if (tbl_id ==~0)
- return clib_error_return (0, "no table ID specified.");
-
- if (is_del || got_new_vss)
- {
- int rv;
-
- rv = dhcpv6_proxy_set_vss(tbl_id, oui, fib_id, is_del);
- switch (rv)
- {
- case 0:
- return 0;
-
- case VNET_API_ERROR_NO_SUCH_FIB:
- return clib_error_return (0, "vss info (oui:%d, vpn-id:%d) not found in table %d.",
- oui, fib_id, tbl_id);
-
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return (0, "vss for table %d not found in pool.",
- tbl_id);
-
- default:
- return clib_error_return (0, "BUG: rv %d", rv);
- }
- }
- else
- return clib_error_return (0, "parse error`%U'",
- format_unformat_error, input);
-
-}
-
-VLIB_CLI_COMMAND (dhcpv6_proxy_vss_command, static) = {
- .path = "set dhcpv6 vss",
- .short_help = "set dhcpv6 vss table <table-id> oui <oui> vpn-idx <vpn-idx>",
- .function = dhcpv6_vss_command_fn,
-};
-
-static clib_error_t *
-dhcpv6_vss_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-
-{
- dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
- dhcpv6_vss_info *v;
- ip6_fib_t *fib;
- u32 *fib_index;
-
- vlib_cli_output (vm, "%=6s%=6s%=12s","Table", "OUI", "VPN ID");
- pool_foreach (fib_index, dm->vss_index_by_rx_fib_index,
- ({
- fib = ip6_fib_get (*fib_index);
- v = pool_elt_at_index (dm->vss, *fib_index);
-
- vlib_cli_output (vm, "%=6d%=6d%=12d",
- fib->table_id,
- v->vpn_id.oui,
- v->vpn_id.fib_id);
- }));
-
- return 0;
-}
-
-VLIB_CLI_COMMAND (dhcpv6_proxy_vss_show_command, static) = {
- .path = "show dhcpv6 vss",
- .short_help = "show dhcpv6 VSS",
- .function = dhcpv6_vss_show_command_fn,
-};
-
-static clib_error_t *
-dhcpv6_link_address_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-
-{
- dhcpv6_proxy_main_t *dm = &dhcpv6_proxy_main;
- vnet_main_t *vnm = vnet_get_main();
- u32 sw_if_index0=0, sw_if_index;
- ip6_address_t *ia0;
- vnet_sw_interface_t *swif;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
- {
-
- if (unformat(input, "%U",
- unformat_vnet_sw_interface, dm->vnet_main, &sw_if_index0))
- {
- swif = vnet_get_sw_interface (vnm, sw_if_index0);
- sw_if_index = (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) ?
- swif->unnumbered_sw_if_index : sw_if_index0;
- ia0 = ip6_interface_first_address(&ip6_main, sw_if_index);
- if (ia0)
- {
- vlib_cli_output (vm, "%=20s%=48s", "interface", "link-address");
-
- vlib_cli_output (vm, "%=20U%=48U",
- format_vnet_sw_if_index_name, dm->vnet_main, sw_if_index0,
- format_ip6_address, ia0);
- } else
- vlib_cli_output (vm, "%=34s%=20U", "No IPv6 address configured on",
- format_vnet_sw_if_index_name, dm->vnet_main, sw_if_index);
- } else
- break;
- }
-
- return 0;
-}
-
-VLIB_CLI_COMMAND (dhcpv6_proxy_address_show_command, static) = {
- .path = "show dhcpv6 link-address interface",
- .short_help = "show dhcpv6 link-address interface <interface>",
- .function = dhcpv6_link_address_show_command_fn,
-};
Code Review / vpp.git / blobdiff