blob: a66332965158097fa71ea491d49ea5bb476351f7 [file] [log] [blame]
Ole Troan298c6952018-03-08 12:30:43 +01001/*
2 * ipip_api.c - ipip api
3 *
4 * Copyright (c) 2018 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18#include <vlibmemory/api.h>
19#include <vnet/api_errno.h>
20#include <vnet/fib/fib_table.h>
21#include <vnet/interface.h>
22#include <vnet/ipip/ipip.h>
23#include <vnet/vnet.h>
24#include <vnet/vnet_msg_enum.h>
25
26#define vl_typedefs /* define message structures */
27#include <vnet/vnet_all_api_h.h>
28#undef vl_typedefs
29
30#define vl_endianfun /* define message structures */
31#include <vnet/vnet_all_api_h.h>
32#undef vl_endianfun
33
34/* instantiate all the print functions we know about */
35#define vl_print(handle, ...) vlib_cli_output(handle, __VA_ARGS__)
36#define vl_printfun
37#include <vnet/vnet_all_api_h.h>
38#undef vl_printfun
39
40#include <vlibapi/api_helper_macros.h>
41
42#define foreach_vpe_api_msg \
43 _(IPIP_ADD_TUNNEL, ipip_add_tunnel) \
44 _(IPIP_DEL_TUNNEL, ipip_del_tunnel) \
45 _(IPIP_6RD_ADD_TUNNEL, ipip_6rd_add_tunnel) \
46 _(IPIP_6RD_DEL_TUNNEL, ipip_6rd_del_tunnel) \
47 _(IPIP_TUNNEL_DUMP, ipip_tunnel_dump)
48
49static void
50vl_api_ipip_add_tunnel_t_handler (vl_api_ipip_add_tunnel_t * mp)
51{
52 vl_api_ipip_add_tunnel_reply_t *rmp;
53 int rv = 0;
54 u32 sw_if_index = ~0;
55 ip46_address_t src = ip46_address_initializer, dst =
56 ip46_address_initializer;
57
58 /* ip addresses sent in network byte order */
59 if (mp->is_ipv6)
60 {
61 clib_memcpy (&src.ip6, mp->src_address, 16);
62 clib_memcpy (&dst.ip6, mp->dst_address, 16);
63 }
64 else
65 {
66 clib_memcpy (&src.ip4, mp->src_address, 4);
67 clib_memcpy (&dst.ip4, mp->dst_address, 4);
68 }
69
70 rv = ipip_add_tunnel (mp->is_ipv6 ? IPIP_TRANSPORT_IP6 : IPIP_TRANSPORT_IP4,
71 ntohl (mp->instance), &src, &dst,
72 ntohl (mp->fib_index), &sw_if_index);
73
74 /* *INDENT-OFF* */
75 REPLY_MACRO2(VL_API_IPIP_ADD_TUNNEL_REPLY,
76 ({ rmp->sw_if_index = ntohl(sw_if_index); }));
77 /* *INDENT-ON* */
78}
79
80static void
81vl_api_ipip_del_tunnel_t_handler (vl_api_ipip_del_tunnel_t * mp)
82{
83 vl_api_ipip_del_tunnel_reply_t *rmp;
84
85 int rv = ipip_del_tunnel (ntohl (mp->sw_if_index));
86
87 REPLY_MACRO (VL_API_IPIP_DEL_TUNNEL_REPLY);
88}
89
90static void
91send_ipip_tunnel_details (ipip_tunnel_t * t,
92 vl_api_registration_t * reg, u32 context)
93{
94 vl_api_ipip_tunnel_details_t *rmp;
95 bool is_ipv6 = t->transport == IPIP_TRANSPORT_IP6 ? true : false;
96 fib_table_t *ft;
97
98 rmp = vl_msg_api_alloc (sizeof (*rmp));
99 memset (rmp, 0, sizeof (*rmp));
100 rmp->_vl_msg_id = htons (VL_API_IPIP_TUNNEL_DETAILS);
101 if (is_ipv6)
102 {
103 clib_memcpy (rmp->src_address, &t->tunnel_src.ip6.as_u8, 16);
104 clib_memcpy (rmp->dst_address, &t->tunnel_dst.ip6.as_u8, 16);
105 ft = fib_table_get (t->fib_index, FIB_PROTOCOL_IP6);
106 rmp->fib_index = htonl (ft->ft_table_id);
107 }
108 else
109 {
110 clib_memcpy (rmp->src_address, &t->tunnel_src.ip4.as_u8, 4);
111 clib_memcpy (rmp->dst_address, &t->tunnel_dst.ip4.as_u8, 4);
112 ft = fib_table_get (t->fib_index, FIB_PROTOCOL_IP4);
113 rmp->fib_index = htonl (ft->ft_table_id);
114 }
115 rmp->instance = htonl (t->user_instance);
116 rmp->sw_if_index = htonl (t->sw_if_index);
117 rmp->context = context;
118 rmp->is_ipv6 = is_ipv6;
119
120 vl_api_send_msg (reg, (u8 *) rmp);
121}
122
123static void
124vl_api_ipip_tunnel_dump_t_handler (vl_api_ipip_tunnel_dump_t * mp)
125{
126 vl_api_registration_t *reg;
127 ipip_main_t *gm = &ipip_main;
128 ipip_tunnel_t *t;
129 u32 sw_if_index;
130
131 reg = vl_api_client_index_to_registration (mp->client_index);
132 if (!reg)
133 return;
134
135 sw_if_index = ntohl (mp->sw_if_index);
136
137 if (sw_if_index == ~0)
138 {
139 /* *INDENT-OFF* */
140 pool_foreach(t, gm->tunnels,
141 ({ send_ipip_tunnel_details(t, reg, mp->context); }));
142 /* *INDENT-ON* */
143 }
144 else
145 {
146 t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
147 if (t)
148 send_ipip_tunnel_details (t, reg, mp->context);
149 }
150}
151
152static void
153vl_api_ipip_6rd_add_tunnel_t_handler (vl_api_ipip_6rd_add_tunnel_t * mp)
154{
155 vl_api_ipip_6rd_add_tunnel_reply_t *rmp;
156 u32 sixrd_tunnel_index;
157
158 int rv = sixrd_add_tunnel ((ip6_address_t *) & mp->ip6_prefix,
159 mp->ip6_prefix_len,
160 (ip4_address_t *) & mp->ip4_prefix,
161 mp->ip4_prefix_len,
162 (ip4_address_t *) & mp->ip4_src,
163 mp->security_check,
164 ntohl (mp->fib_index), &sixrd_tunnel_index);
165
166 REPLY_MACRO2 (VL_API_IPIP_6RD_ADD_TUNNEL_REPLY, (
167 {
168 rmp->sw_if_index =
169 htonl
170 (sixrd_tunnel_index);}));
171}
172
173static void
174vl_api_ipip_6rd_del_tunnel_t_handler (vl_api_ipip_6rd_del_tunnel_t * mp)
175{
176 vl_api_ipip_6rd_del_tunnel_reply_t *rmp;
177
178 int rv = sixrd_del_tunnel (ntohl (mp->sw_if_index));
179
180 REPLY_MACRO (VL_API_IPIP_6RD_DEL_TUNNEL_REPLY);
181}
182
183/*
184 * ipip_api_hookup
185 * Add vpe's API message handlers to the table.
186 * vlib has alread mapped shared memory and
187 * added the client registration handlers.
188 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
189 */
190#define vl_msg_name_crc_list
191#include <vnet/vnet_all_api_h.h>
192#undef vl_msg_name_crc_list
193
194static void
195setup_message_id_table (api_main_t * am)
196{
197#define _(id, n, crc) vl_msg_api_add_msg_name_crc(am, #n "_" #crc, id);
198 foreach_vl_msg_name_crc_ipip;
199#undef _
200}
201
202static clib_error_t *
203ipip_api_hookup (vlib_main_t * vm)
204{
205 api_main_t *am = &api_main;
206
207#define _(N, n) \
208 vl_msg_api_set_handlers(VL_API_##N, #n, vl_api_##n##_t_handler, \
209 vl_noop_handler, vl_api_##n##_t_endian, \
210 vl_api_##n##_t_print, sizeof(vl_api_##n##_t), 1);
211 foreach_vpe_api_msg;
212#undef _
213
214 /*
215 * Set up the (msg_name, crc, message-id) table
216 */
217 setup_message_id_table (am);
218
219 return 0;
220}
221
222VLIB_API_INIT_FUNCTION (ipip_api_hookup);
223
224/*
225 * fd.io coding-style-patch-verification: ON
226 *
227 * Local Variables:
228 * eval: (c-set-style "gnu")
229 * End:
230 */