2 *------------------------------------------------------------------
3 * dhcp_api.c - dhcp api
5 * Copyright (c) 2016 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/dhcp/dhcp_proxy.h>
26 #include <vnet/dhcp/client.h>
27 #include <vnet/fib/fib_table.h>
29 #include <vnet/vnet_msg_enum.h>
31 #define vl_typedefs /* define message structures */
32 #include <vnet/vnet_all_api_h.h>
35 #define vl_endianfun /* define message structures */
36 #include <vnet/vnet_all_api_h.h>
39 /* instantiate all the print functions we know about */
40 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
42 #include <vnet/vnet_all_api_h.h>
45 #include <vlibapi/api_helper_macros.h>
47 #define foreach_vpe_api_msg \
48 _(DHCP_PROXY_CONFIG,dhcp_proxy_config) \
49 _(DHCP_PROXY_DUMP,dhcp_proxy_dump) \
50 _(DHCP_PROXY_SET_VSS,dhcp_proxy_set_vss) \
51 _(DHCP_CLIENT_CONFIG, dhcp_client_config)
55 vl_api_dhcp_proxy_set_vss_t_handler (vl_api_dhcp_proxy_set_vss_t * mp)
57 vl_api_dhcp_proxy_set_vss_reply_t *rmp;
60 rv = dhcp_proxy_set_vss ((mp->is_ipv6 ?
65 ntohl (mp->fib_id), (int) mp->is_add == 0);
67 REPLY_MACRO (VL_API_DHCP_PROXY_SET_VSS_REPLY);
71 static void vl_api_dhcp_proxy_config_t_handler
72 (vl_api_dhcp_proxy_config_t * mp)
74 vl_api_dhcp_proxy_set_vss_reply_t *rmp;
75 ip46_address_t src, server;
80 clib_memcpy (&src.ip6, mp->dhcp_src_address, sizeof (src.ip6));
81 clib_memcpy (&server.ip6, mp->dhcp_server, sizeof (server.ip6));
83 rv = dhcp6_proxy_set_server (&server,
85 (u32) ntohl (mp->rx_vrf_id),
86 (u32) ntohl (mp->server_vrf_id),
87 (int) (mp->is_add == 0));
91 ip46_address_reset (&src);
92 ip46_address_reset (&server);
94 clib_memcpy (&src.ip4, mp->dhcp_src_address, sizeof (src.ip4));
95 clib_memcpy (&server.ip4, mp->dhcp_server, sizeof (server.ip4));
97 rv = dhcp4_proxy_set_server (&server,
99 (u32) ntohl (mp->rx_vrf_id),
100 (u32) ntohl (mp->server_vrf_id),
101 (int) (mp->is_add == 0));
105 REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY);
109 vl_api_dhcp_proxy_dump_t_handler (vl_api_dhcp_proxy_dump_t * mp)
111 unix_shared_memory_queue_t *q;
113 q = vl_api_client_index_to_input_queue (mp->client_index);
117 dhcp_proxy_dump ((mp->is_ip6 == 1 ?
118 FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4), q, mp->context);
122 dhcp_send_details (fib_protocol_t proto,
123 void *opaque, u32 context, dhcp_proxy_t * proxy)
125 vl_api_dhcp_proxy_details_t *mp;
126 unix_shared_memory_queue_t *q = opaque;
127 vl_api_dhcp_server_t *v_server;
128 dhcp_server_t *server;
134 count = vec_len (proxy->dhcp_servers);
135 n = sizeof (*mp) + (count * sizeof (vl_api_dhcp_server_t));
136 mp = vl_msg_api_alloc (n);
140 mp->_vl_msg_id = ntohs (VL_API_DHCP_PROXY_DETAILS);
141 mp->context = context;
144 mp->is_ipv6 = (proto == FIB_PROTOCOL_IP6);
146 htonl (dhcp_proxy_rx_table_get_table_id (proto, proxy->rx_fib_index));
148 vss = dhcp_get_vss_info (&dhcp_proxy_main, proxy->rx_fib_index, proto);
152 mp->vss_oui = htonl (vss->oui);
153 mp->vss_fib_id = htonl (vss->fib_id);
156 vec_foreach_index (count, proxy->dhcp_servers)
158 server = &proxy->dhcp_servers[count];
159 v_server = &mp->servers[count];
161 s_fib = fib_table_get (server->server_fib_index, proto);
163 v_server->server_vrf_id = htonl (s_fib->ft_table_id);
167 memcpy (v_server->dhcp_server, &server->dhcp_server.ip6, 16);
171 /* put the address in the first bytes */
172 memcpy (v_server->dhcp_server, &server->dhcp_server.ip4, 4);
178 memcpy (mp->dhcp_src_address, &proxy->dhcp_src_address.ip6, 16);
182 /* put the address in the first bytes */
183 memcpy (mp->dhcp_src_address, &proxy->dhcp_src_address.ip4, 4);
185 vl_msg_api_send_shmem (q, (u8 *) & mp);
189 dhcp_compl_event_callback (u32 client_index, u32 pid, u8 * hostname,
190 u8 is_ipv6, u8 * host_address, u8 * router_address,
193 unix_shared_memory_queue_t *q;
194 vl_api_dhcp_compl_event_t *mp;
197 q = vl_api_client_index_to_input_queue (client_index);
201 mp = vl_msg_api_alloc (sizeof (*mp));
202 mp->client_index = client_index;
204 mp->is_ipv6 = is_ipv6;
205 len = (vec_len (hostname) < 63) ? vec_len (hostname) : 63;
206 clib_memcpy (&mp->hostname, hostname, len);
207 mp->hostname[len] = 0;
208 clib_memcpy (&mp->host_address[0], host_address, 16);
209 clib_memcpy (&mp->router_address[0], router_address, 16);
211 if (NULL != host_mac)
212 clib_memcpy (&mp->host_mac[0], host_mac, 6);
214 mp->_vl_msg_id = ntohs (VL_API_DHCP_COMPL_EVENT);
216 vl_msg_api_send_shmem (q, (u8 *) & mp);
219 static void vl_api_dhcp_client_config_t_handler
220 (vl_api_dhcp_client_config_t * mp)
222 vlib_main_t *vm = vlib_get_main ();
223 vl_api_dhcp_client_config_reply_t *rmp;
226 VALIDATE_SW_IF_INDEX (mp);
228 rv = dhcp_client_config (vm, ntohl (mp->sw_if_index),
229 mp->hostname, mp->is_add, mp->client_index,
230 mp->want_dhcp_event ? dhcp_compl_event_callback :
233 BAD_SW_IF_INDEX_LABEL;
235 REPLY_MACRO (VL_API_DHCP_CLIENT_CONFIG_REPLY);
240 * Add vpe's API message handlers to the table.
241 * vlib has alread mapped shared memory and
242 * added the client registration handlers.
243 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
245 #define vl_msg_name_crc_list
246 #include <vnet/vnet_all_api_h.h>
247 #undef vl_msg_name_crc_list
250 setup_message_id_table (api_main_t * am)
252 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
253 foreach_vl_msg_name_crc_dhcp;
257 static clib_error_t *
258 dhcp_api_hookup (vlib_main_t * vm)
260 api_main_t *am = &api_main;
263 vl_msg_api_set_handlers(VL_API_##N, #n, \
264 vl_api_##n##_t_handler, \
266 vl_api_##n##_t_endian, \
267 vl_api_##n##_t_print, \
268 sizeof(vl_api_##n##_t), 1);
273 * Set up the (msg_name, crc, message-id) table
275 setup_message_id_table (am);
280 VLIB_API_INIT_FUNCTION (dhcp_api_hookup);
283 * fd.io coding-style-patch-verification: ON
286 * eval: (c-set-style "gnu")