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;
61 mp->vpn_ascii_id[sizeof (mp->vpn_ascii_id) - 1] = 0;
62 vpn_ascii_id = format (0, "%s", mp->vpn_ascii_id);
64 dhcp_proxy_set_vss ((mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4),
65 ntohl (mp->tbl_id), mp->vss_type, vpn_ascii_id,
66 ntohl (mp->oui), ntohl (mp->vpn_index),
69 REPLY_MACRO (VL_API_DHCP_PROXY_SET_VSS_REPLY);
73 static void vl_api_dhcp_proxy_config_t_handler
74 (vl_api_dhcp_proxy_config_t * mp)
76 vl_api_dhcp_proxy_set_vss_reply_t *rmp;
77 ip46_address_t src, server;
82 clib_memcpy (&src.ip6, mp->dhcp_src_address, sizeof (src.ip6));
83 clib_memcpy (&server.ip6, mp->dhcp_server, sizeof (server.ip6));
85 rv = dhcp6_proxy_set_server (&server,
87 (u32) ntohl (mp->rx_vrf_id),
88 (u32) ntohl (mp->server_vrf_id),
89 (int) (mp->is_add == 0));
93 ip46_address_reset (&src);
94 ip46_address_reset (&server);
96 clib_memcpy (&src.ip4, mp->dhcp_src_address, sizeof (src.ip4));
97 clib_memcpy (&server.ip4, mp->dhcp_server, sizeof (server.ip4));
99 rv = dhcp4_proxy_set_server (&server,
101 (u32) ntohl (mp->rx_vrf_id),
102 (u32) ntohl (mp->server_vrf_id),
103 (int) (mp->is_add == 0));
107 REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY);
111 vl_api_dhcp_proxy_dump_t_handler (vl_api_dhcp_proxy_dump_t * mp)
113 vl_api_registration_t *reg;
115 reg = vl_api_client_index_to_registration (mp->client_index);
119 dhcp_proxy_dump ((mp->is_ip6 == 1 ?
120 FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4), reg, mp->context);
124 dhcp_send_details (fib_protocol_t proto,
125 void *opaque, u32 context, dhcp_proxy_t * proxy)
127 vl_api_dhcp_proxy_details_t *mp;
128 vl_api_registration_t *reg = opaque;
129 vl_api_dhcp_server_t *v_server;
130 dhcp_server_t *server;
136 count = vec_len (proxy->dhcp_servers);
137 n = sizeof (*mp) + (count * sizeof (vl_api_dhcp_server_t));
138 mp = vl_msg_api_alloc (n);
142 mp->_vl_msg_id = ntohs (VL_API_DHCP_PROXY_DETAILS);
143 mp->context = context;
146 mp->is_ipv6 = (proto == FIB_PROTOCOL_IP6);
148 htonl (dhcp_proxy_rx_table_get_table_id (proto, proxy->rx_fib_index));
150 vss = dhcp_get_vss_info (&dhcp_proxy_main, proxy->rx_fib_index, proto);
154 mp->vss_type = vss->vss_type;
155 if (vss->vss_type == VSS_TYPE_ASCII)
157 u32 id_len = vec_len (vss->vpn_ascii_id);
158 clib_memcpy (mp->vss_vpn_ascii_id, vss->vpn_ascii_id, id_len);
160 else if (vss->vss_type == VSS_TYPE_VPN_ID)
162 u32 oui = ((u32) vss->vpn_id[0] << 16) + ((u32) vss->vpn_id[1] << 8)
163 + ((u32) vss->vpn_id[2]);
164 u32 fib_id = ((u32) vss->vpn_id[3] << 24) +
165 ((u32) vss->vpn_id[4] << 16) + ((u32) vss->vpn_id[5] << 8) +
166 ((u32) vss->vpn_id[6]);
167 mp->vss_oui = htonl (oui);
168 mp->vss_fib_id = htonl (fib_id);
172 mp->vss_type = VSS_TYPE_INVALID;
174 vec_foreach_index (count, proxy->dhcp_servers)
176 server = &proxy->dhcp_servers[count];
177 v_server = &mp->servers[count];
179 s_fib = fib_table_get (server->server_fib_index, proto);
181 v_server->server_vrf_id = htonl (s_fib->ft_table_id);
185 memcpy (v_server->dhcp_server, &server->dhcp_server.ip6, 16);
189 /* put the address in the first bytes */
190 memcpy (v_server->dhcp_server, &server->dhcp_server.ip4, 4);
196 memcpy (mp->dhcp_src_address, &proxy->dhcp_src_address.ip6, 16);
200 /* put the address in the first bytes */
201 memcpy (mp->dhcp_src_address, &proxy->dhcp_src_address.ip4, 4);
203 vl_api_send_msg (reg, (u8 *) mp);
207 dhcp_compl_event_callback (u32 client_index, u32 pid, u8 * hostname,
208 u8 mask_width, u8 is_ipv6, u8 * host_address,
209 u8 * router_address, u8 * host_mac)
211 vl_api_registration_t *reg;
212 vl_api_dhcp_compl_event_t *mp;
215 reg = vl_api_client_index_to_registration (client_index);
219 mp = vl_msg_api_alloc (sizeof (*mp));
220 mp->client_index = client_index;
222 mp->is_ipv6 = is_ipv6;
223 len = (vec_len (hostname) < 63) ? vec_len (hostname) : 63;
224 clib_memcpy (&mp->hostname, hostname, len);
225 mp->hostname[len] = 0;
226 mp->mask_width = mask_width;
227 clib_memcpy (&mp->host_address[0], host_address, 16);
228 clib_memcpy (&mp->router_address[0], router_address, 16);
230 if (NULL != host_mac)
231 clib_memcpy (&mp->host_mac[0], host_mac, 6);
233 mp->_vl_msg_id = ntohs (VL_API_DHCP_COMPL_EVENT);
235 vl_api_send_msg (reg, (u8 *) mp);
238 static void vl_api_dhcp_client_config_t_handler
239 (vl_api_dhcp_client_config_t * mp)
241 vlib_main_t *vm = vlib_get_main ();
242 vl_api_dhcp_client_config_reply_t *rmp;
245 VALIDATE_SW_IF_INDEX (mp);
247 rv = dhcp_client_config (vm, ntohl (mp->sw_if_index),
248 mp->hostname, mp->client_id,
249 mp->is_add, mp->client_index,
250 mp->want_dhcp_event ? dhcp_compl_event_callback :
251 NULL, mp->set_broadcast_flag, mp->pid);
253 BAD_SW_IF_INDEX_LABEL;
255 REPLY_MACRO (VL_API_DHCP_CLIENT_CONFIG_REPLY);
260 * Add vpe's API message handlers to the table.
261 * vlib has alread mapped shared memory and
262 * added the client registration handlers.
263 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
265 #define vl_msg_name_crc_list
266 #include <vnet/vnet_all_api_h.h>
267 #undef vl_msg_name_crc_list
270 setup_message_id_table (api_main_t * am)
272 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
273 foreach_vl_msg_name_crc_dhcp;
277 static clib_error_t *
278 dhcp_api_hookup (vlib_main_t * vm)
280 api_main_t *am = &api_main;
283 vl_msg_api_set_handlers(VL_API_##N, #n, \
284 vl_api_##n##_t_handler, \
286 vl_api_##n##_t_endian, \
287 vl_api_##n##_t_print, \
288 sizeof(vl_api_##n##_t), 1);
293 * Set up the (msg_name, crc, message-id) table
295 setup_message_id_table (am);
300 VLIB_API_INIT_FUNCTION (dhcp_api_hookup);
303 * fd.io coding-style-patch-verification: ON
306 * eval: (c-set-style "gnu")