1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
|
/*
*------------------------------------------------------------------
* api_helper_macros.h - message handler helper macros
*
* Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*------------------------------------------------------------------
*/
#ifndef __api_helper_macros_h__
#define __api_helper_macros_h__
#define f64_endian(a)
#define f64_print(a,b)
#ifndef REPLY_MSG_ID_BASE
#define REPLY_MSG_ID_BASE 0
#endif
#define REPLY_MACRO(t) \
do { \
unix_shared_memory_queue_t * q; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
rmp->_vl_msg_id = htons((t)+REPLY_MSG_ID_BASE); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
\
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
#define REPLY_MACRO2(t, body) \
do { \
unix_shared_memory_queue_t * q; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
rmp->_vl_msg_id = htons((t)+REPLY_MSG_ID_BASE); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
do {body;} while (0); \
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
#define REPLY_MACRO3(t, n, body) \
do { \
unix_shared_memory_queue_t * q; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp) + n); \
rmp->_vl_msg_id = htons((t)+REPLY_MSG_ID_BASE); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
do {body;} while (0); \
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
#define REPLY_MACRO4(t, n, body) \
do { \
unix_shared_memory_queue_t * q; \
u8 is_error = 0; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc_or_null (sizeof (*rmp) + n); \
if (!rmp) \
{ \
/* if there isn't enough memory, try to allocate */ \
/* some at least for returning an error */ \
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
if (!rmp) \
return; \
\
memset (rmp, 0, sizeof (*rmp)); \
rv = VNET_API_ERROR_TABLE_TOO_BIG; \
is_error = 1; \
} \
rmp->_vl_msg_id = htons((t)+REPLY_MSG_ID_BASE); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
if (!is_error) \
do {body;} while (0); \
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
/* "trust, but verify" */
static inline uword
vnet_sw_if_index_is_api_valid (u32 sw_if_index)
{
return vnet_sw_interface_is_api_valid (vnet_get_main (), sw_if_index);
}
#define VALIDATE_SW_IF_INDEX(mp) \
do { u32 __sw_if_index = ntohl(mp->sw_if_index); \
if (!vnet_sw_if_index_is_api_valid(__sw_if_index)) { \
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
goto bad_sw_if_index; \
} \
} while(0);
#define BAD_SW_IF_INDEX_LABEL \
do { \
bad_sw_if_index: \
; \
} while (0);
#define VALIDATE_RX_SW_IF_INDEX(mp) \
do { u32 __rx_sw_if_index = ntohl(mp->rx_sw_if_index); \
if (!vnet_sw_if_index_is_api_valid(__rx_sw_if_index)) { \
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
goto bad_rx_sw_if_index; \
} \
} while(0);
#define BAD_RX_SW_IF_INDEX_LABEL \
do { \
bad_rx_sw_if_index: \
; \
} while (0);
#define VALIDATE_TX_SW_IF_INDEX(mp) \
do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index); \
if (!vnet_sw_if_index_is_api_valid(__tx_sw_if_index)) { \
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
goto bad_tx_sw_if_index; \
} \
} while(0);
#define BAD_TX_SW_IF_INDEX_LABEL \
do { \
bad_tx_sw_if_index: \
; \
} while (0);
#define pub_sub_handler(lca,UCA) \
static void vl_api_want_##lca##_t_handler ( \
vl_api_want_##lca##_t *mp) \
{ \
vpe_api_main_t *vam = &vpe_api_main; \
vpe_client_registration_t *rp; \
vl_api_want_##lca##_reply_t *rmp; \
uword *p; \
i32 rv = 0; \
\
p = hash_get (vam->lca##_registration_hash, mp->client_index); \
if (p) { \
if (mp->enable_disable) { \
clib_warning ("pid %d: already enabled...", mp->pid); \
rv = VNET_API_ERROR_INVALID_REGISTRATION; \
goto reply; \
} else { \
rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
pool_put (vam->lca##_registrations, rp); \
hash_unset (vam->lca##_registration_hash, \
mp->client_index); \
goto reply; \
} \
} \
if (mp->enable_disable == 0) { \
clib_warning ("pid %d: already disabled...", mp->pid); \
rv = VNET_API_ERROR_INVALID_REGISTRATION; \
goto reply; \
} \
pool_get (vam->lca##_registrations, rp); \
rp->client_index = mp->client_index; \
rp->client_pid = mp->pid; \
hash_set (vam->lca##_registration_hash, rp->client_index, \
rp - vam->lca##_registrations); \
\
reply: \
REPLY_MACRO (VL_API_WANT_##UCA##_REPLY); \
}
#define foreach_registration_hash \
_(interface_events) \
_(to_netconf_server) \
_(from_netconf_server) \
_(to_netconf_client) \
_(from_netconf_client) \
_(oam_events) \
_(bfd_events)
/* WARNING: replicated in vpp/stats.h */
typedef struct
{
u32 client_index; /* in memclnt registration pool */
u32 client_pid;
} vpe_client_registration_t;
struct _vl_api_ip4_arp_event;
struct _vl_api_ip6_nd_event;
typedef struct
{
#define _(a) uword *a##_registration_hash; \
vpe_client_registration_t * a##_registrations;
foreach_registration_hash
#undef _
/* notifications happen really early in the game */
u8 link_state_process_up;
/* ip4 arp event registration pool */
struct _vl_api_ip4_arp_event *arp_events;
/* ip6 nd event registration pool */
struct _vl_api_ip6_nd_event *nd_events;
/* convenience */
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
} vpe_api_main_t;
extern vpe_api_main_t vpe_api_main;
#endif /* __api_helper_macros_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
