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gerrit.nordix.org / fdio / vpp / 2a1ca787b9ca0021bd5da73450caedc2ff41c76d / . / src / vlibapi / api_helper_macros.h
blob: 2662df8356b3df40c2eb38e1a77e1ffcf8427e46 [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
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]46#define REPLY_MACRO2(t, body) \
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 = htons((t)+(REPLY_MSG_ID_BASE)); \
56 rmp->context = mp->context; \
57 rmp->retval = ntohl(rv); \
58 do {body;} while (0); \
Florin Corase86a8ed2018-01-05 03:20:25 -0800[diff] [blame]59 vl_api_send_msg (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]60} while(0);
61
Ole Troan2a1ca782019-09-19 01:08:30 +0200[diff] [blame^]62#define REPLY_MACRO_DETAILS2(t, body) \
63do { \
64 vl_api_registration_t *rp; \
65 rv = vl_msg_api_pd_handler (mp, rv); \
66 rp = vl_api_client_index_to_registration (mp->client_index); \
67 if (rp == 0) \
68 return; \
69 \
70 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
71 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
72 rmp->context = mp->context; \
73 do {body;} while (0); \
74 vl_api_send_msg (rp, (u8 *)rmp); \
75} while(0);
76
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]77#define REPLY_MACRO3(t, n, body) \
78do { \
79 vl_api_registration_t *rp; \
80 rv = vl_msg_api_pd_handler (mp, rv); \
81 rp = vl_api_client_index_to_registration (mp->client_index); \
82 if (rp == 0) \
83 return; \
84 \
85 rmp = vl_msg_api_alloc (sizeof (*rmp) + n); \
86 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
87 rmp->context = mp->context; \
88 rmp->retval = ntohl(rv); \
89 do {body;} while (0); \
Florin Corase86a8ed2018-01-05 03:20:25 -0800[diff] [blame]90 vl_api_send_msg (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]91} while(0);
92
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]93#define REPLY_MACRO4(t, n, body) \
94do { \
95 vl_api_registration_t *rp; \
96 u8 is_error = 0; \
97 rv = vl_msg_api_pd_handler (mp, rv); \
98 \
99 rp = vl_api_client_index_to_registration (mp->client_index); \
100 if (rp == 0) \
101 return; \
102 \
103 rmp = vl_msg_api_alloc_or_null (sizeof (*rmp) + n); \
104 if (!rmp) \
105 { \
106 /* if there isn't enough memory, try to allocate */ \
107 /* some at least for returning an error */ \
108 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
109 if (!rmp) \
110 return; \
111 \
Dave Barachb7b92992018-10-17 10:38:51 -0400[diff] [blame]112 clib_memset (rmp, 0, sizeof (*rmp)); \
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame]113 rv = VNET_API_ERROR_TABLE_TOO_BIG; \
114 is_error = 1; \
115 } \
116 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
117 rmp->context = mp->context; \
118 rmp->retval = ntohl(rv); \
119 if (!is_error) \
120 do {body;} while (0); \
Florin Corase86a8ed2018-01-05 03:20:25 -0800[diff] [blame]121 vl_api_send_msg (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]122} while(0);
123
124/* "trust, but verify" */
125
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]126static inline uword
127vnet_sw_if_index_is_api_valid (u32 sw_if_index)
128{
129 return vnet_sw_interface_is_api_valid (vnet_get_main (), sw_if_index);
130}
131
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]132#define VALIDATE_SW_IF_INDEX(mp) \
Neale Ranns947ea622018-06-07 23:48:20 -0700[diff] [blame]133 do { u32 __sw_if_index = ntohl((mp)->sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]134 if (!vnet_sw_if_index_is_api_valid(__sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]135 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
136 goto bad_sw_if_index; \
137 } \
138} while(0);
139
140#define BAD_SW_IF_INDEX_LABEL \
141do { \
142bad_sw_if_index: \
143 ; \
144} while (0);
145
146#define VALIDATE_RX_SW_IF_INDEX(mp) \
Neale Ranns947ea622018-06-07 23:48:20 -0700[diff] [blame]147 do { u32 __rx_sw_if_index = ntohl((mp)->rx_sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]148 if (!vnet_sw_if_index_is_api_valid(__rx_sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]149 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
150 goto bad_rx_sw_if_index; \
151 } \
152} while(0);
153
154#define BAD_RX_SW_IF_INDEX_LABEL \
155do { \
156bad_rx_sw_if_index: \
157 ; \
158} while (0);
159
160#define VALIDATE_TX_SW_IF_INDEX(mp) \
161 do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]162 if (!vnet_sw_if_index_is_api_valid(__tx_sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]163 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
164 goto bad_tx_sw_if_index; \
165 } \
166} while(0);
167
168#define BAD_TX_SW_IF_INDEX_LABEL \
169do { \
170bad_tx_sw_if_index: \
171 ; \
172} while (0);
173
John Lo97934772017-05-18 22:26:47 -0400[diff] [blame]174#define VALIDATE_BD_ID(mp) \
175 do { u32 __rx_bd_id = ntohl(mp->bd_id); \
176 if (__rx_bd_id > L2_BD_ID_MAX) { \
177 rv = VNET_API_ERROR_BD_ID_EXCEED_MAX; \
178 goto bad_bd_id; \
179 } \
180} while(0);
181
182#define BAD_BD_ID_LABEL \
183do { \
184bad_bd_id: \
185 ; \
186} while (0);
187
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]188#define pub_sub_handler(lca,UCA) \
189static void vl_api_want_##lca##_t_handler ( \
190 vl_api_want_##lca##_t *mp) \
191{ \
192 vpe_api_main_t *vam = &vpe_api_main; \
193 vpe_client_registration_t *rp; \
194 vl_api_want_##lca##_reply_t *rmp; \
195 uword *p; \
196 i32 rv = 0; \
197 \
198 p = hash_get (vam->lca##_registration_hash, mp->client_index); \
199 if (p) { \
200 if (mp->enable_disable) { \
Ole Troan32ef1372019-01-07 22:17:31 +0100[diff] [blame]201 clib_warning ("pid %d: already enabled...", ntohl(mp->pid)); \
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]202 rv = VNET_API_ERROR_INVALID_REGISTRATION; \
203 goto reply; \
204 } else { \
205 rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
206 pool_put (vam->lca##_registrations, rp); \
207 hash_unset (vam->lca##_registration_hash, \
208 mp->client_index); \
209 goto reply; \
210 } \
211 } \
212 if (mp->enable_disable == 0) { \
213 clib_warning ("pid %d: already disabled...", mp->pid); \
214 rv = VNET_API_ERROR_INVALID_REGISTRATION; \
215 goto reply; \
216 } \
217 pool_get (vam->lca##_registrations, rp); \
218 rp->client_index = mp->client_index; \
219 rp->client_pid = mp->pid; \
220 hash_set (vam->lca##_registration_hash, rp->client_index, \
221 rp - vam->lca##_registrations); \
222 \
223reply: \
224 REPLY_MACRO (VL_API_WANT_##UCA##_REPLY); \
Neale Rannsf12dad62018-06-04 18:41:24 -0700[diff] [blame]225} \
226 \
227static clib_error_t * vl_api_want_##lca##_t_reaper (u32 client_index) \
228{ \
229 vpe_api_main_t *vam = &vpe_api_main; \
230 vpe_client_registration_t *rp; \
231 uword *p; \
232 \
Matthew Smithd4656312018-06-14 11:40:49 -0500[diff] [blame]233 p = hash_get (vam->lca##_registration_hash, client_index); \
Neale Rannsf12dad62018-06-04 18:41:24 -0700[diff] [blame]234 if (p) \
235 { \
236 rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
237 pool_put (vam->lca##_registrations, rp); \
238 hash_unset (vam->lca##_registration_hash, client_index); \
239 } \
240 return (NULL); \
241} \
242 \
243VL_MSG_API_REAPER_FUNCTION (vl_api_want_##lca##_t_reaper); \
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]244
245#define foreach_registration_hash \
246_(interface_events) \
247_(to_netconf_server) \
248_(from_netconf_server) \
249_(to_netconf_client) \
250_(from_netconf_client) \
Klement Sekera0e3c0de2016-09-29 14:43:44 +0200[diff] [blame]251_(oam_events) \
Eyal Bari20197482017-09-13 12:29:08 +0300[diff] [blame]252_(bfd_events) \
Eyal Baric125ecc2017-09-20 11:29:17 +0300[diff] [blame]253_(wc_ip6_nd_events) \
Juraj Sloboda4b9669d2018-01-15 10:39:21 +0100[diff] [blame]254_(wc_ip4_arp_events) \
Juraj Sloboda81119e82018-05-25 14:02:20 +0200[diff] [blame]255_(ip6_ra_events) \
Juraj Slobodadd3b8f72018-05-04 14:20:06 +0200[diff] [blame]256_(dhcp6_pd_reply_events) \
257_(dhcp6_reply_events)
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]258
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]259typedef struct
260{
261 u32 client_index; /* in memclnt registration pool */
262 u32 client_pid;
263} vpe_client_registration_t;
264
265struct _vl_api_ip4_arp_event;
266struct _vl_api_ip6_nd_event;
267
268typedef struct
269{
270#define _(a) uword *a##_registration_hash; \
271 vpe_client_registration_t * a##_registrations;
272 foreach_registration_hash
273#undef _
274 /* notifications happen really early in the game */
275 u8 link_state_process_up;
276
277 /* ip4 arp event registration pool */
278 struct _vl_api_ip4_arp_event *arp_events;
279
280 /* ip6 nd event registration pool */
281 struct _vl_api_ip6_nd_event *nd_events;
282
283 /* convenience */
284 vlib_main_t *vlib_main;
285 vnet_main_t *vnet_main;
286} vpe_api_main_t;
287
288extern vpe_api_main_t vpe_api_main;
289
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]290#endif /* __api_helper_macros_h__ */
291
292/*
293 * fd.io coding-style-patch-verification: ON
294 *
295 * Local Variables:
296 * eval: (c-set-style "gnu")
297 * End:
298 */