Gitiles
Code Review Sign In
gerrit.nordix.org / fdio / vpp / 3373a55f91516f1de0643a9e8c331102fcb35461 / . / src / vlibapi / api_helper_macros.h
blob: 8fc0bd54c76b1f64adfd9a4abc7995dca7a0f570 [file] [log] [blame]
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]1/*
2 *------------------------------------------------------------------
3 * api_helper_macros.h - message handler helper macros
4 *
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:
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
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 *------------------------------------------------------------------
18 */
19
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]20#ifndef __api_helper_macros_h__
21#define __api_helper_macros_h__
22
23#define f64_endian(a)
24#define f64_print(a,b)
25
Eyal Bari0856b972017-03-15 14:54:19 +0200[diff] [blame]26#ifndef REPLY_MSG_ID_BASE
27#define REPLY_MSG_ID_BASE 0
28#endif
29
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]30#define REPLY_MACRO(t) \
31do { \
32 vl_api_registration_t *rp; \
33 rv = vl_msg_api_pd_handler (mp, rv); \
34 rp = vl_api_client_index_to_registration (mp->client_index); \
35 if (rp == 0) \
36 return; \
37 \
38 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
39 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
40 rmp->context = mp->context; \
41 rmp->retval = ntohl(rv); \
42 \
Florin Corase86a8ed2018-01-05 03:20:25 -0800[diff] [blame]43 vl_api_send_msg (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]44} while(0);
45
Ole Troanbad67922020-08-24 12:22:01 +0200[diff] [blame]46#define REPLY_MACRO_END(t) \
47do { \
48 vl_api_registration_t *rp; \
49 rv = vl_msg_api_pd_handler (mp, rv); \
50 rp = vl_api_client_index_to_registration (mp->client_index); \
51 if (rp == 0) \
52 return; \
53 \
54 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
55 rmp->_vl_msg_id = t+(REPLY_MSG_ID_BASE); \
56 rmp->context = mp->context; \
57 rmp->retval = rv; \
58 api_main_t *am = vlibapi_get_main (); \
59 void (*endian_fp) (void *); \
60 endian_fp = am->msg_endian_handlers[t+(REPLY_MSG_ID_BASE)]; \
61 (*endian_fp) (rmp); \
62 vl_api_send_msg (rp, (u8 *)rmp); \
63} while(0);
64
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]65#define REPLY_MACRO2(t, body) \
66do { \
67 vl_api_registration_t *rp; \
68 rv = vl_msg_api_pd_handler (mp, rv); \
69 rp = vl_api_client_index_to_registration (mp->client_index); \
70 if (rp == 0) \
71 return; \
72 \
73 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
74 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
75 rmp->context = mp->context; \
76 rmp->retval = ntohl(rv); \
77 do {body;} while (0); \
Florin Corase86a8ed2018-01-05 03:20:25 -0800[diff] [blame]78 vl_api_send_msg (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]79} while(0);
80
Ole Troane796a182020-05-18 11:14:05 +0200[diff] [blame]81#define REPLY_MACRO2_END(t, body) \
82do { \
83 vl_api_registration_t *rp; \
84 rv = vl_msg_api_pd_handler (mp, rv); \
85 rp = vl_api_client_index_to_registration (mp->client_index); \
86 if (rp == 0) \
87 return; \
88 \
89 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
90 rmp->_vl_msg_id = t+(REPLY_MSG_ID_BASE); \
91 rmp->context = mp->context; \
92 rmp->retval = rv; \
93 do {body;} while (0); \
94 api_main_t *am = vlibapi_get_main (); \
95 void (*endian_fp) (void *); \
Ole Troanbad67922020-08-24 12:22:01 +0200[diff] [blame]96 endian_fp = am->msg_endian_handlers[t+(REPLY_MSG_ID_BASE)]; \
Ole Troane796a182020-05-18 11:14:05 +0200[diff] [blame]97 (*endian_fp) (rmp); \
98 vl_api_send_msg (rp, (u8 *)rmp); \
99} while(0);
100
Paul Vinciguerraf24de172020-01-27 18:42:25 -0500[diff] [blame]101#define REPLY_MACRO2_ZERO(t, body) \
102do { \
103 vl_api_registration_t *rp; \
104 rv = vl_msg_api_pd_handler (mp, rv); \
105 rp = vl_api_client_index_to_registration (mp->client_index); \
106 if (rp == 0) \
107 return; \
108 \
109 rmp = vl_msg_api_alloc_zero (sizeof (*rmp)); \
110 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
111 rmp->context = mp->context; \
112 rmp->retval = ntohl(rv); \
113 do {body;} while (0); \
114 vl_api_send_msg (rp, (u8 *)rmp); \
115} while(0);
116
Ole Troan2a1ca782019-09-19 01:08:30 +0200[diff] [blame]117#define REPLY_MACRO_DETAILS2(t, body) \
118do { \
119 vl_api_registration_t *rp; \
120 rv = vl_msg_api_pd_handler (mp, rv); \
121 rp = vl_api_client_index_to_registration (mp->client_index); \
122 if (rp == 0) \
123 return; \
124 \
125 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
126 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
127 rmp->context = mp->context; \
128 do {body;} while (0); \
129 vl_api_send_msg (rp, (u8 *)rmp); \
130} while(0);
131
Ole Troanf5db3712020-05-20 15:47:06 +0200[diff] [blame]132#define REPLY_MACRO_DETAILS4(t, rp, context, body) \
133do { \
134 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
135 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
136 rmp->context = context; \
137 do {body;} while (0); \
138 vl_api_send_msg (rp, (u8 *)rmp); \
139} while(0);
140
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]141#define REPLY_MACRO3(t, n, body) \
142do { \
143 vl_api_registration_t *rp; \
144 rv = vl_msg_api_pd_handler (mp, rv); \
145 rp = vl_api_client_index_to_registration (mp->client_index); \
146 if (rp == 0) \
147 return; \
148 \
149 rmp = vl_msg_api_alloc (sizeof (*rmp) + n); \
150 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
151 rmp->context = mp->context; \
152 rmp->retval = ntohl(rv); \
153 do {body;} while (0); \
Florin Corase86a8ed2018-01-05 03:20:25 -0800[diff] [blame]154 vl_api_send_msg (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]155} while(0);
156
Paul Vinciguerraf24de172020-01-27 18:42:25 -0500[diff] [blame]157#define REPLY_MACRO3_ZERO(t, n, body) \
158do { \
159 vl_api_registration_t *rp; \
160 rv = vl_msg_api_pd_handler (mp, rv); \
161 rp = vl_api_client_index_to_registration (mp->client_index); \
162 if (rp == 0) \
163 return; \
164 \
165 rmp = vl_msg_api_alloc_zero (sizeof (*rmp) + n); \
166 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
167 rmp->context = mp->context; \
168 rmp->retval = ntohl(rv); \
169 do {body;} while (0); \
170 vl_api_send_msg (rp, (u8 *)rmp); \
171} while(0);
172
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]173#define REPLY_MACRO4(t, n, body) \
174do { \
175 vl_api_registration_t *rp; \
176 u8 is_error = 0; \
177 rv = vl_msg_api_pd_handler (mp, rv); \
178 \
179 rp = vl_api_client_index_to_registration (mp->client_index); \
180 if (rp == 0) \
181 return; \
182 \
183 rmp = vl_msg_api_alloc_or_null (sizeof (*rmp) + n); \
184 if (!rmp) \
185 { \
186 /* if there isn't enough memory, try to allocate */ \
187 /* some at least for returning an error */ \
188 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
189 if (!rmp) \
190 return; \
191 \
Dave Barachb7b92992018-10-17 10:38:51 -0400[diff] [blame]192 clib_memset (rmp, 0, sizeof (*rmp)); \
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]193 rv = VNET_API_ERROR_TABLE_TOO_BIG; \
194 is_error = 1; \
195 } \
196 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
197 rmp->context = mp->context; \
198 rmp->retval = ntohl(rv); \
199 if (!is_error) \
200 do {body;} while (0); \
Florin Corase86a8ed2018-01-05 03:20:25 -0800[diff] [blame]201 vl_api_send_msg (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]202} while(0);
203
Ole Troanf5db3712020-05-20 15:47:06 +0200[diff] [blame]204#define REPLY_AND_DETAILS_MACRO(t, p, body) \
205do { \
206 vl_api_registration_t *rp; \
207 rp = vl_api_client_index_to_registration (mp->client_index); \
208 if (rp == 0) \
209 return; \
210 u32 cursor = clib_net_to_host_u32 (mp->cursor); \
211 vlib_main_t *vm = vlib_get_main (); \
212 f64 start = vlib_time_now (vm); \
213 if (pool_is_free_index (p, cursor)) { \
214 cursor = pool_next_index (p, cursor); \
215 if (cursor == ~0) \
216 rv = VNET_API_ERROR_INVALID_VALUE; \
217 } \
218 while (cursor != ~0) { \
219 do {body;} while (0); \
220 cursor = pool_next_index (p, cursor); \
221 if (vl_api_process_may_suspend (vm, rp, start)) { \
222 if (cursor != ~0) \
223 rv = VNET_API_ERROR_EAGAIN; \
224 break; \
225 } \
226 } \
227 REPLY_MACRO2 (t, ({ \
228 rmp->cursor = clib_host_to_net_u32 (cursor); \
229 })); \
230} while(0);
231
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]232/* "trust, but verify" */
233
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]234static inline uword
235vnet_sw_if_index_is_api_valid (u32 sw_if_index)
236{
237 return vnet_sw_interface_is_api_valid (vnet_get_main (), sw_if_index);
238}
239
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]240#define VALIDATE_SW_IF_INDEX(mp) \
Neale Ranns947ea622018-06-07 23:48:20 -0700[diff] [blame]241 do { u32 __sw_if_index = ntohl((mp)->sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]242 if (!vnet_sw_if_index_is_api_valid(__sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]243 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
244 goto bad_sw_if_index; \
245 } \
246} while(0);
247
248#define BAD_SW_IF_INDEX_LABEL \
249do { \
250bad_sw_if_index: \
251 ; \
252} while (0);
253
254#define VALIDATE_RX_SW_IF_INDEX(mp) \
Neale Ranns947ea622018-06-07 23:48:20 -0700[diff] [blame]255 do { u32 __rx_sw_if_index = ntohl((mp)->rx_sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]256 if (!vnet_sw_if_index_is_api_valid(__rx_sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]257 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
258 goto bad_rx_sw_if_index; \
259 } \
260} while(0);
261
262#define BAD_RX_SW_IF_INDEX_LABEL \
263do { \
264bad_rx_sw_if_index: \
265 ; \
266} while (0);
267
268#define VALIDATE_TX_SW_IF_INDEX(mp) \
269 do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]270 if (!vnet_sw_if_index_is_api_valid(__tx_sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]271 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
272 goto bad_tx_sw_if_index; \
273 } \
274} while(0);
275
276#define BAD_TX_SW_IF_INDEX_LABEL \
277do { \
278bad_tx_sw_if_index: \
279 ; \
280} while (0);
281
John Lo97934772017-05-18 22:26:47 -0400[diff] [blame]282#define VALIDATE_BD_ID(mp) \
283 do { u32 __rx_bd_id = ntohl(mp->bd_id); \
284 if (__rx_bd_id > L2_BD_ID_MAX) { \
285 rv = VNET_API_ERROR_BD_ID_EXCEED_MAX; \
286 goto bad_bd_id; \
287 } \
288} while(0);
289
290#define BAD_BD_ID_LABEL \
291do { \
292bad_bd_id: \
293 ; \
294} while (0);
295
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]296#define pub_sub_handler(lca,UCA) \
297static void vl_api_want_##lca##_t_handler ( \
298 vl_api_want_##lca##_t *mp) \
299{ \
300 vpe_api_main_t *vam = &vpe_api_main; \
301 vpe_client_registration_t *rp; \
302 vl_api_want_##lca##_reply_t *rmp; \
303 uword *p; \
304 i32 rv = 0; \
305 \
306 p = hash_get (vam->lca##_registration_hash, mp->client_index); \
307 if (p) { \
308 if (mp->enable_disable) { \
Ole Troan32ef1372019-01-07 22:17:31 +0100[diff] [blame]309 clib_warning ("pid %d: already enabled...", ntohl(mp->pid)); \
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]310 rv = VNET_API_ERROR_INVALID_REGISTRATION; \
311 goto reply; \
312 } else { \
313 rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
314 pool_put (vam->lca##_registrations, rp); \
315 hash_unset (vam->lca##_registration_hash, \
316 mp->client_index); \
317 goto reply; \
318 } \
319 } \
320 if (mp->enable_disable == 0) { \
321 clib_warning ("pid %d: already disabled...", mp->pid); \
322 rv = VNET_API_ERROR_INVALID_REGISTRATION; \
323 goto reply; \
324 } \
325 pool_get (vam->lca##_registrations, rp); \
326 rp->client_index = mp->client_index; \
327 rp->client_pid = mp->pid; \
328 hash_set (vam->lca##_registration_hash, rp->client_index, \
329 rp - vam->lca##_registrations); \
330 \
331reply: \
332 REPLY_MACRO (VL_API_WANT_##UCA##_REPLY); \
Neale Rannsf12dad62018-06-04 18:41:24 -0700[diff] [blame]333} \
334 \
335static clib_error_t * vl_api_want_##lca##_t_reaper (u32 client_index) \
336{ \
337 vpe_api_main_t *vam = &vpe_api_main; \
338 vpe_client_registration_t *rp; \
339 uword *p; \
340 \
Matthew Smithd4656312018-06-14 11:40:49 -0500[diff] [blame]341 p = hash_get (vam->lca##_registration_hash, client_index); \
Neale Rannsf12dad62018-06-04 18:41:24 -0700[diff] [blame]342 if (p) \
343 { \
344 rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
345 pool_put (vam->lca##_registrations, rp); \
346 hash_unset (vam->lca##_registration_hash, client_index); \
347 } \
348 return (NULL); \
349} \
350 \
351VL_MSG_API_REAPER_FUNCTION (vl_api_want_##lca##_t_reaper); \
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]352
353#define foreach_registration_hash \
354_(interface_events) \
355_(to_netconf_server) \
356_(from_netconf_server) \
357_(to_netconf_client) \
358_(from_netconf_client) \
Klement Sekera0e3c0de2016-09-29 14:43:44 +0200[diff] [blame]359_(oam_events) \
Eyal Bari20197482017-09-13 12:29:08 +0300[diff] [blame]360_(bfd_events) \
Neale Rannscbe25aa2019-09-30 10:53:31 +0000[diff] [blame]361_(l2_arp_term_events) \
Juraj Sloboda81119e82018-05-25 14:02:20 +0200[diff] [blame]362_(ip6_ra_events) \
Juraj Slobodadd3b8f72018-05-04 14:20:06 +0200[diff] [blame]363_(dhcp6_pd_reply_events) \
364_(dhcp6_reply_events)
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]365
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]366typedef struct
367{
368 u32 client_index; /* in memclnt registration pool */
369 u32 client_pid;
370} vpe_client_registration_t;
371
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]372typedef struct
373{
Neale Rannscbe25aa2019-09-30 10:53:31 +0000[diff] [blame]374#define _(a) \
375 uword *a##_registration_hash; \
376 vpe_client_registration_t * a##_registrations;
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]377 foreach_registration_hash
378#undef _
379 /* notifications happen really early in the game */
380 u8 link_state_process_up;
381
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]382 /* convenience */
383 vlib_main_t *vlib_main;
384 vnet_main_t *vnet_main;
385} vpe_api_main_t;
386
387extern vpe_api_main_t vpe_api_main;
388
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]389#endif /* __api_helper_macros_h__ */
390
391/*
392 * fd.io coding-style-patch-verification: ON
393 *
394 * Local Variables:
395 * eval: (c-set-style "gnu")
396 * End:
397 */