2 *------------------------------------------------------------------
3 * l2tp_api.c - l2tpv3 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 <l2tp/l2tp.h>
26 #include <vnet/ip/ip_types_api.h>
28 /* define message IDs */
29 #include <vnet/format_fns.h>
30 #include <l2tp/l2tp.api_enum.h>
31 #include <l2tp/l2tp.api_types.h>
34 * Base message ID fot the plugin
36 static u32 l2tp_base_msg_id;
37 #define REPLY_MSG_ID_BASE l2tp_base_msg_id
39 #include <vlibapi/api_helper_macros.h>
42 send_sw_if_l2tpv3_tunnel_details (vpe_api_main_t * am,
43 vl_api_registration_t * reg,
45 l2t_main_t * lm, u32 context)
47 vl_api_sw_if_l2tpv3_tunnel_details_t *mp;
49 vnet_sw_interface_t *si = NULL;
51 si = vnet_get_hw_sw_interface (lm->vnet_main, s->hw_if_index);
53 if_name = format (if_name, "%U",
54 format_vnet_sw_interface_name, lm->vnet_main, si);
56 mp = vl_msg_api_alloc (sizeof (*mp));
57 clib_memset (mp, 0, sizeof (*mp));
59 ntohs (VL_API_SW_IF_L2TPV3_TUNNEL_DETAILS + REPLY_MSG_ID_BASE);
60 strncpy ((char *) mp->interface_name, (char *) if_name,
61 ARRAY_LEN (mp->interface_name) - 1);
62 mp->sw_if_index = ntohl (si->sw_if_index);
63 mp->local_session_id = s->local_session_id;
64 mp->remote_session_id = s->remote_session_id;
65 mp->local_cookie[0] = s->local_cookie[0];
66 mp->local_cookie[1] = s->local_cookie[1];
67 mp->remote_cookie = s->remote_cookie;
68 ip_address_encode ((ip46_address_t *) & s->client_address, IP46_TYPE_IP6,
70 ip_address_encode ((ip46_address_t *) & s->our_address, IP46_TYPE_IP6,
72 mp->l2_sublayer_present = s->l2_sublayer_present;
73 mp->context = context;
75 vl_api_send_msg (reg, (u8 *) mp);
80 vl_api_sw_if_l2tpv3_tunnel_dump_t_handler (vl_api_sw_if_l2tpv3_tunnel_dump_t *
83 vpe_api_main_t *am = &vpe_api_main;
84 l2t_main_t *lm = &l2t_main;
85 vl_api_registration_t *reg;
86 l2t_session_t *session;
88 reg = vl_api_client_index_to_registration (mp->client_index);
92 pool_foreach (session, lm->sessions)
94 send_sw_if_l2tpv3_tunnel_details (am, reg, session, lm, mp->context);
98 static void vl_api_l2tpv3_create_tunnel_t_handler
99 (vl_api_l2tpv3_create_tunnel_t * mp)
101 vl_api_l2tpv3_create_tunnel_reply_t *rmp;
102 l2t_main_t *lm = &l2t_main;
103 u32 sw_if_index = (u32) ~ 0;
105 ip46_address_t client, our;
107 if (mp->our_address.af == ADDRESS_IP4)
109 rv = VNET_API_ERROR_UNIMPLEMENTED;
115 if (mp->encap_vrf_id != ~0)
118 ip6_main_t *im = &ip6_main;
121 hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id))))
123 rv = VNET_API_ERROR_NO_SUCH_FIB;
126 encap_fib_index = p[0];
130 encap_fib_index = ~0;
133 ip_address_decode (&mp->client_address, &client);
134 ip_address_decode (&mp->our_address, &our);
136 rv = create_l2tpv3_ipv6_tunnel (lm,
139 ntohl (mp->local_session_id),
140 ntohl (mp->remote_session_id),
141 clib_net_to_host_u64 (mp->local_cookie),
142 clib_net_to_host_u64 (mp->remote_cookie),
143 mp->l2_sublayer_present,
144 encap_fib_index, &sw_if_index);
147 REPLY_MACRO2(VL_API_L2TPV3_CREATE_TUNNEL_REPLY,
149 rmp->sw_if_index = ntohl (sw_if_index);
153 static void vl_api_l2tpv3_set_tunnel_cookies_t_handler
154 (vl_api_l2tpv3_set_tunnel_cookies_t * mp)
156 vl_api_l2tpv3_set_tunnel_cookies_reply_t *rmp;
157 l2t_main_t *lm = &l2t_main;
160 VALIDATE_SW_IF_INDEX (mp);
162 rv = l2tpv3_set_tunnel_cookies (lm, ntohl (mp->sw_if_index),
163 clib_net_to_host_u64 (mp->new_local_cookie),
165 (mp->new_remote_cookie));
167 BAD_SW_IF_INDEX_LABEL;
169 REPLY_MACRO (VL_API_L2TPV3_SET_TUNNEL_COOKIES_REPLY);
172 static void vl_api_l2tpv3_interface_enable_disable_t_handler
173 (vl_api_l2tpv3_interface_enable_disable_t * mp)
176 vnet_main_t *vnm = vnet_get_main ();
177 vl_api_l2tpv3_interface_enable_disable_reply_t *rmp;
179 VALIDATE_SW_IF_INDEX (mp);
181 rv = l2tpv3_interface_enable_disable
182 (vnm, ntohl (mp->sw_if_index), mp->enable_disable);
184 BAD_SW_IF_INDEX_LABEL;
186 REPLY_MACRO (VL_API_L2TPV3_INTERFACE_ENABLE_DISABLE_REPLY);
189 static void vl_api_l2tpv3_set_lookup_key_t_handler
190 (vl_api_l2tpv3_set_lookup_key_t * mp)
193 l2t_main_t *lm = &l2t_main;
194 vl_api_l2tpv3_set_lookup_key_reply_t *rmp;
196 if (mp->key > L2T_LOOKUP_KEY_API_SESSION_ID)
198 rv = VNET_API_ERROR_INVALID_VALUE;
202 lm->lookup_type = (ip6_to_l2_lookup_t) mp->key;
205 REPLY_MACRO (VL_API_L2TPV3_SET_LOOKUP_KEY_REPLY);
210 * Add vpe's API message handlers to the table.
211 * vlib has already mapped shared memory and
212 * added the client registration handlers.
213 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
215 #include <l2tp/l2tp.api.c>
217 static clib_error_t *
218 l2tp_api_hookup (vlib_main_t * vm)
221 * Set up the (msg_name, crc, message-id) table
223 l2tp_base_msg_id = setup_message_id_table ();
228 VLIB_API_INIT_FUNCTION (l2tp_api_hookup);
230 #include <vlib/unix/plugin.h>
231 #include <vpp/app/version.h>
233 VLIB_PLUGIN_REGISTER () = {
234 .version = VPP_BUILD_VER,
235 .description = "Layer 2 Tunneling Protocol v3 (L2TP)",
240 * fd.io coding-style-patch-verification: ON
243 * eval: (c-set-style "gnu")