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gerrit.nordix.org / fdio / vpp / 59b2565cd91a67ced650739f36129650830211ac / . / src / vlibapi / api_helper_macros.h
blob: fc9374f8a26a987579331c7ab9e4e80cb19ea91b [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 \
43 vl_msg_api_send (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); \
59 vl_msg_api_send (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]60} while(0);
61
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame^]62#define REPLY_MACRO3(t, n, 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) + n); \
71 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
72 rmp->context = mp->context; \
73 rmp->retval = ntohl(rv); \
74 do {body;} while (0); \
75 vl_msg_api_send (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]76} while(0);
77
Dave Barach59b25652017-09-10 15:04:27 -0400[diff] [blame^]78#define REPLY_MACRO4(t, n, body) \
79do { \
80 vl_api_registration_t *rp; \
81 u8 is_error = 0; \
82 rv = vl_msg_api_pd_handler (mp, rv); \
83 \
84 rp = vl_api_client_index_to_registration (mp->client_index); \
85 if (rp == 0) \
86 return; \
87 \
88 rmp = vl_msg_api_alloc_or_null (sizeof (*rmp) + n); \
89 if (!rmp) \
90 { \
91 /* if there isn't enough memory, try to allocate */ \
92 /* some at least for returning an error */ \
93 rmp = vl_msg_api_alloc (sizeof (*rmp)); \
94 if (!rmp) \
95 return; \
96 \
97 memset (rmp, 0, sizeof (*rmp)); \
98 rv = VNET_API_ERROR_TABLE_TOO_BIG; \
99 is_error = 1; \
100 } \
101 rmp->_vl_msg_id = htons((t)+(REPLY_MSG_ID_BASE)); \
102 rmp->context = mp->context; \
103 rmp->retval = ntohl(rv); \
104 if (!is_error) \
105 do {body;} while (0); \
106 vl_msg_api_send (rp, (u8 *)rmp); \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]107} while(0);
108
109/* "trust, but verify" */
110
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]111static inline uword
112vnet_sw_if_index_is_api_valid (u32 sw_if_index)
113{
114 return vnet_sw_interface_is_api_valid (vnet_get_main (), sw_if_index);
115}
116
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]117#define VALIDATE_SW_IF_INDEX(mp) \
118 do { u32 __sw_if_index = ntohl(mp->sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]119 if (!vnet_sw_if_index_is_api_valid(__sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]120 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
121 goto bad_sw_if_index; \
122 } \
123} while(0);
124
125#define BAD_SW_IF_INDEX_LABEL \
126do { \
127bad_sw_if_index: \
128 ; \
129} while (0);
130
131#define VALIDATE_RX_SW_IF_INDEX(mp) \
132 do { u32 __rx_sw_if_index = ntohl(mp->rx_sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]133 if (!vnet_sw_if_index_is_api_valid(__rx_sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]134 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
135 goto bad_rx_sw_if_index; \
136 } \
137} while(0);
138
139#define BAD_RX_SW_IF_INDEX_LABEL \
140do { \
141bad_rx_sw_if_index: \
142 ; \
143} while (0);
144
145#define VALIDATE_TX_SW_IF_INDEX(mp) \
146 do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index); \
Eyal Bari1c82cd42017-03-14 14:39:51 +0200[diff] [blame]147 if (!vnet_sw_if_index_is_api_valid(__tx_sw_if_index)) { \
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]148 rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
149 goto bad_tx_sw_if_index; \
150 } \
151} while(0);
152
153#define BAD_TX_SW_IF_INDEX_LABEL \
154do { \
155bad_tx_sw_if_index: \
156 ; \
157} while (0);
158
John Lo97934772017-05-18 22:26:47 -0400[diff] [blame]159#define VALIDATE_BD_ID(mp) \
160 do { u32 __rx_bd_id = ntohl(mp->bd_id); \
161 if (__rx_bd_id > L2_BD_ID_MAX) { \
162 rv = VNET_API_ERROR_BD_ID_EXCEED_MAX; \
163 goto bad_bd_id; \
164 } \
165} while(0);
166
167#define BAD_BD_ID_LABEL \
168do { \
169bad_bd_id: \
170 ; \
171} while (0);
172
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]173#define pub_sub_handler(lca,UCA) \
174static void vl_api_want_##lca##_t_handler ( \
175 vl_api_want_##lca##_t *mp) \
176{ \
177 vpe_api_main_t *vam = &vpe_api_main; \
178 vpe_client_registration_t *rp; \
179 vl_api_want_##lca##_reply_t *rmp; \
180 uword *p; \
181 i32 rv = 0; \
182 \
183 p = hash_get (vam->lca##_registration_hash, mp->client_index); \
184 if (p) { \
185 if (mp->enable_disable) { \
186 clib_warning ("pid %d: already enabled...", mp->pid); \
187 rv = VNET_API_ERROR_INVALID_REGISTRATION; \
188 goto reply; \
189 } else { \
190 rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
191 pool_put (vam->lca##_registrations, rp); \
192 hash_unset (vam->lca##_registration_hash, \
193 mp->client_index); \
194 goto reply; \
195 } \
196 } \
197 if (mp->enable_disable == 0) { \
198 clib_warning ("pid %d: already disabled...", mp->pid); \
199 rv = VNET_API_ERROR_INVALID_REGISTRATION; \
200 goto reply; \
201 } \
202 pool_get (vam->lca##_registrations, rp); \
203 rp->client_index = mp->client_index; \
204 rp->client_pid = mp->pid; \
205 hash_set (vam->lca##_registration_hash, rp->client_index, \
206 rp - vam->lca##_registrations); \
207 \
208reply: \
209 REPLY_MACRO (VL_API_WANT_##UCA##_REPLY); \
210}
211
212#define foreach_registration_hash \
213_(interface_events) \
214_(to_netconf_server) \
215_(from_netconf_server) \
216_(to_netconf_client) \
217_(from_netconf_client) \
Klement Sekera0e3c0de2016-09-29 14:43:44 +0200[diff] [blame]218_(oam_events) \
Eyal Bari20197482017-09-13 12:29:08 +0300[diff] [blame]219_(bfd_events) \
Eyal Baric125ecc2017-09-20 11:29:17 +0300[diff] [blame]220_(wc_ip6_nd_events) \
Eyal Bari20197482017-09-13 12:29:08 +0300[diff] [blame]221_(wc_ip4_arp_events)
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]222
Dave Barach6d963c22016-12-05 09:50:05 -0500[diff] [blame]223typedef struct
224{
225 u32 client_index; /* in memclnt registration pool */
226 u32 client_pid;
227} vpe_client_registration_t;
228
229struct _vl_api_ip4_arp_event;
230struct _vl_api_ip6_nd_event;
231
232typedef struct
233{
234#define _(a) uword *a##_registration_hash; \
235 vpe_client_registration_t * a##_registrations;
236 foreach_registration_hash
237#undef _
238 /* notifications happen really early in the game */
239 u8 link_state_process_up;
240
241 /* ip4 arp event registration pool */
242 struct _vl_api_ip4_arp_event *arp_events;
243
244 /* ip6 nd event registration pool */
245 struct _vl_api_ip6_nd_event *nd_events;
246
247 /* convenience */
248 vlib_main_t *vlib_main;
249 vnet_main_t *vnet_main;
250} vpe_api_main_t;
251
252extern vpe_api_main_t vpe_api_main;
253
Dave Barachaff70772016-10-31 11:59:07 -0400[diff] [blame]254#endif /* __api_helper_macros_h__ */
255
256/*
257 * fd.io coding-style-patch-verification: ON
258 *
259 * Local Variables:
260 * eval: (c-set-style "gnu")
261 * End:
262 */