Line data Source code
1 : /*
2 : * ------------------------------------------------------------------
3 : * sr_api.c - ipv6 segment routing api
4 : *
5 : * Copyright (c) 2016 Cisco and/or its affiliates. Licensed under the Apache
6 : * License, Version 2.0 (the "License"); you may not use this file except in
7 : * compliance with the License. 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, WITHOUT
13 : * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14 : * License for the specific language governing permissions and limitations
15 : * under the License.
16 : * ------------------------------------------------------------------
17 : */
18 :
19 : #include <vnet/vnet.h>
20 : #include <vnet/srmpls/sr_mpls.h>
21 : #include <vlibmemory/api.h>
22 :
23 : #include <vnet/interface.h>
24 : #include <vnet/api_errno.h>
25 : #include <vnet/feature/feature.h>
26 : #include <vnet/ip/ip_types_api.h>
27 :
28 : #include <vnet/format_fns.h>
29 : #include <vnet/srmpls/sr_mpls.api_enum.h>
30 : #include <vnet/srmpls/sr_mpls.api_types.h>
31 :
32 :
33 : #define vl_api_version(n, v) static u32 api_version = v;
34 : #include <vnet/srmpls/sr_mpls.api.h>
35 : #undef vl_api_version
36 :
37 : #define vl_endianfun
38 : #include <vnet/srmpls/sr_mpls.api.h>
39 : #undef vl_endianfun
40 :
41 : #define vl_calcsizefun
42 : #include <vnet/srmpls/sr_mpls.api.h>
43 : #undef vl_calcsizefun
44 :
45 : #define vl_printfun
46 : #include <vnet/srmpls/sr_mpls.api.h>
47 : #undef vl_printfun
48 :
49 : #define vl_msg_name_crc_list
50 : #include <vnet/srmpls/sr_mpls.api.h>
51 : #undef vl_msg_name_crc_list
52 :
53 : #define REPLY_MSG_ID_BASE msg_id_base
54 : #include <vlibapi/api_helper_macros.h>
55 :
56 : #define foreach_vpe_api_msg \
57 : _(SR_MPLS_POLICY_DEL, sr_mpls_policy_del) \
58 : _(SR_MPLS_STEERING_ADD_DEL, sr_mpls_steering_add_del) \
59 : _(SR_MPLS_POLICY_ASSIGN_ENDPOINT_COLOR, sr_mpls_policy_assign_endpoint_color)
60 :
61 : static u16 msg_id_base;
62 :
63 : static void
64 2 : vl_api_sr_mpls_policy_add_t_handler (vl_api_sr_mpls_policy_add_t * mp)
65 : {
66 : vl_api_sr_mpls_policy_add_reply_t *rmp;
67 :
68 2 : mpls_label_t *segments = 0, *seg;
69 2 : mpls_label_t this_address = 0;
70 :
71 : int i;
72 6 : for (i = 0; i < mp->n_segments; i++)
73 : {
74 4 : vec_add2 (segments, seg, 1);
75 4 : this_address = ntohl (mp->segments[i]);
76 4 : clib_memcpy (seg, &this_address, sizeof (this_address));
77 : }
78 :
79 2 : int rv = 0;
80 2 : rv = sr_mpls_policy_add (ntohl (mp->bsid),
81 2 : segments, mp->is_spray, ntohl (mp->weight));
82 2 : vec_free (segments);
83 :
84 2 : REPLY_MACRO (VL_API_SR_MPLS_POLICY_ADD_REPLY);
85 : }
86 :
87 : static void
88 0 : vl_api_sr_mpls_policy_mod_t_handler (vl_api_sr_mpls_policy_mod_t * mp)
89 : {
90 : vl_api_sr_mpls_policy_mod_reply_t *rmp;
91 :
92 0 : mpls_label_t *segments = 0, *seg;
93 0 : mpls_label_t this_address = 0;
94 :
95 : int i;
96 0 : for (i = 0; i < mp->n_segments; i++)
97 : {
98 0 : vec_add2 (segments, seg, 1);
99 0 : this_address = ntohl (mp->segments[i]);
100 0 : clib_memcpy (seg, &this_address, sizeof (this_address));
101 : }
102 :
103 0 : int rv = 0;
104 0 : rv = sr_mpls_policy_mod (ntohl (mp->bsid),
105 0 : ntohl (mp->operation), segments,
106 : ntohl (mp->sl_index), ntohl (mp->weight));
107 0 : vec_free (segments);
108 :
109 0 : REPLY_MACRO (VL_API_SR_MPLS_POLICY_MOD_REPLY);
110 : }
111 :
112 : static void
113 2 : vl_api_sr_mpls_policy_del_t_handler (vl_api_sr_mpls_policy_del_t * mp)
114 : {
115 : vl_api_sr_mpls_policy_del_reply_t *rmp;
116 2 : int rv = 0;
117 2 : rv = sr_mpls_policy_del (ntohl (mp->bsid));
118 :
119 2 : REPLY_MACRO (VL_API_SR_MPLS_POLICY_DEL_REPLY);
120 : }
121 :
122 0 : static void vl_api_sr_mpls_steering_add_del_t_handler
123 : (vl_api_sr_mpls_steering_add_del_t * mp)
124 : {
125 : vl_api_sr_mpls_steering_add_del_reply_t *rmp;
126 : fib_prefix_t prefix;
127 : ip46_address_t next_hop;
128 0 : clib_memset (&prefix, 0, sizeof (ip46_address_t));
129 :
130 0 : ip_prefix_decode (&mp->prefix, &prefix);
131 0 : ip_address_decode (&mp->next_hop, &next_hop);
132 :
133 0 : int rv = 0;
134 0 : if (mp->is_del)
135 0 : rv = sr_mpls_steering_policy_del (&prefix.fp_addr,
136 0 : prefix.fp_len,
137 0 : ip46_address_is_ip4 (&prefix.fp_addr) ?
138 : SR_STEER_IPV4 : SR_STEER_IPV6,
139 : ntohl (mp->table_id),
140 : ntohl (mp->color));
141 : else
142 0 : rv = sr_mpls_steering_policy_add (ntohl (mp->bsid),
143 : ntohl (mp->table_id),
144 : &prefix.fp_addr,
145 0 : prefix.fp_len,
146 0 : ip46_address_is_ip4 (&prefix.fp_addr) ?
147 : SR_STEER_IPV4 : SR_STEER_IPV6,
148 : &next_hop,
149 0 : ip46_address_is_ip4 (&next_hop) ?
150 : SR_STEER_IPV4 : SR_STEER_IPV6,
151 0 : ntohl (mp->color), mp->co_bits,
152 : ntohl (mp->vpn_label));
153 :
154 0 : REPLY_MACRO (VL_API_SR_MPLS_STEERING_ADD_DEL_REPLY);
155 : }
156 :
157 0 : static void vl_api_sr_mpls_policy_assign_endpoint_color_t_handler
158 : (vl_api_sr_mpls_policy_assign_endpoint_color_t * mp)
159 : {
160 : vl_api_sr_mpls_policy_assign_endpoint_color_reply_t *rmp;
161 0 : int rv = 0;
162 :
163 : ip46_address_t endpoint;
164 0 : clib_memset (&endpoint, 0, sizeof (ip46_address_t));
165 0 : ip_address_decode (&mp->endpoint, &endpoint);
166 :
167 0 : rv = sr_mpls_policy_assign_endpoint_color (ntohl (mp->bsid),
168 : &endpoint,
169 0 : ip46_address_is_ip4 (&endpoint) ?
170 : SR_STEER_IPV4 : SR_STEER_IPV6,
171 : ntohl (mp->color));
172 :
173 0 : REPLY_MACRO (VL_API_SR_MPLS_POLICY_ASSIGN_ENDPOINT_COLOR_REPLY);
174 : }
175 :
176 : static void
177 559 : setup_message_id_table (api_main_t * am)
178 : {
179 : #define _(id, n, crc) \
180 : vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + REPLY_MSG_ID_BASE);
181 559 : foreach_vl_msg_name_crc_sr_mpls;
182 : #undef _
183 559 : }
184 :
185 : static clib_error_t *
186 559 : sr_mpls_api_hookup (vlib_main_t * vm)
187 : {
188 559 : api_main_t *am = vlibapi_get_main ();
189 :
190 559 : u8 *name = format (0, "sr_mpls_%08x%c", api_version, 0);
191 559 : REPLY_MSG_ID_BASE =
192 559 : vl_msg_api_get_msg_ids ((char *) name, VL_MSG_SR_MPLS_LAST);
193 559 : vec_free (name);
194 :
195 : #define _(N, n) \
196 : vl_msg_api_config (&(vl_msg_api_msg_config_t){ \
197 : .id = REPLY_MSG_ID_BASE + VL_API_##N, \
198 : .name = #n, \
199 : .handler = vl_api_##n##_t_handler, \
200 : .endian = vl_api_##n##_t_endian, \
201 : .format_fn = vl_api_##n##_t_format, \
202 : .size = sizeof (vl_api_##n##_t), \
203 : .traced = 1, \
204 : .tojson = vl_api_##n##_t_tojson, \
205 : .fromjson = vl_api_##n##_t_fromjson, \
206 : .calc_size = vl_api_##n##_t_calc_size, \
207 : });
208 559 : foreach_vpe_api_msg;
209 : #undef _
210 :
211 : /*
212 : * Manually register the sr policy add msg, so we trace enough bytes
213 : * to capture a typical segment list
214 : */
215 559 : vl_msg_api_config (&(vl_msg_api_msg_config_t){
216 559 : .id = REPLY_MSG_ID_BASE + VL_API_SR_MPLS_POLICY_ADD,
217 : .name = "sr_mpls_policy_add",
218 : .handler = vl_api_sr_mpls_policy_add_t_handler,
219 : .endian = vl_api_sr_mpls_policy_add_t_endian,
220 : .format_fn = vl_api_sr_mpls_policy_add_t_format,
221 : .size = 256,
222 : .traced = 1,
223 : .tojson = vl_api_sr_mpls_policy_add_t_tojson,
224 : .fromjson = vl_api_sr_mpls_policy_add_t_fromjson,
225 : .calc_size = vl_api_sr_mpls_policy_add_t_calc_size,
226 : });
227 : /*
228 : * Manually register the sr policy mod msg, so we trace enough bytes
229 : * to capture a typical segment list
230 : */
231 559 : vl_msg_api_config (&(vl_msg_api_msg_config_t){
232 559 : .id = REPLY_MSG_ID_BASE + VL_API_SR_MPLS_POLICY_MOD,
233 : .name = "sr_mpls_policy_mod",
234 : .handler = vl_api_sr_mpls_policy_mod_t_handler,
235 : .endian = vl_api_sr_mpls_policy_mod_t_endian,
236 : .format_fn = vl_api_sr_mpls_policy_mod_t_format,
237 : .size = 256,
238 : .traced = 1,
239 : .tojson = vl_api_sr_mpls_policy_mod_t_tojson,
240 : .fromjson = vl_api_sr_mpls_policy_mod_t_fromjson,
241 : .calc_size = vl_api_sr_mpls_policy_mod_t_calc_size,
242 : });
243 :
244 : /*
245 : * Set up the (msg_name, crc, message-id) table
246 : */
247 559 : setup_message_id_table (am);
248 :
249 559 : return 0;
250 : }
251 :
252 12319 : VLIB_API_INIT_FUNCTION (sr_mpls_api_hookup);
253 :
254 : /*
255 : * fd.io coding-style-patch-verification: ON
256 : *
257 : * Local Variables: eval: (c-set-style "gnu") End:
258 : */
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