FD.io VPP  v18.07.1-19-g511ce25
Vector Packet Processing
l2e_api.c
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1 /*
2  *------------------------------------------------------------------
3  * l2e_api.c - layer 2 emulation api
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 
20 #include <vnet/vnet.h>
21 #include <vnet/plugin/plugin.h>
22 
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vpp/app/version.h>
26 
27 #include <l2e/l2e.h>
28 
29 #include <vlibapi/api.h>
30 #include <vlibmemory/api.h>
31 
32 /* define message IDs */
33 #include <l2e/l2e_msg_enum.h>
34 
35 #define vl_typedefs /* define message structures */
36 #include <l2e/l2e_all_api_h.h>
37 #undef vl_typedefs
38 
39 #define vl_endianfun /* define message structures */
40 #include <l2e/l2e_all_api_h.h>
41 #undef vl_endianfun
42 
43 /* instantiate all the print functions we know about */
44 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
45 #define vl_printfun
46 #include <l2e/l2e_all_api_h.h>
47 #undef vl_printfun
48 
49 /* Get the API version number */
50 #define vl_api_version(n,v) static u32 api_version=(v);
51 #include <l2e/l2e_all_api_h.h>
52 #undef vl_api_version
53 
55 
56 #define foreach_l2e_api_msg \
57 _(L2_EMULATION, l2_emulation)
58 
59 /**
60  * L2 Emulation Main
61  */
62 typedef struct l2_emulation_main_t_
63 {
66 
68 
69 #define L2E_MSG_BASE l2_emulation_main.msg_id_base
70 
71 static void
73 {
74  vl_api_l2_emulation_reply_t *rmp;
75  int rv = 0;
76 
78 
79  u32 sw_if_index = ntohl (mp->sw_if_index);
80 
81  if (mp->enable)
82  l2_emulation_enable (sw_if_index);
83  else
84  l2_emulation_disable (sw_if_index);
85 
87 
88  REPLY_MACRO (VL_API_L2_EMULATION_REPLY + L2E_MSG_BASE);
89 }
90 
91 /*
92  * l2_api_hookup
93  * Add vpe's API message handlers to the table.
94  * vlib has alread mapped shared memory and
95  * added the client registration handlers.
96  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
97  */
98 #define vl_msg_name_crc_list
99 #include <l2e/l2e_all_api_h.h>
100 #undef vl_msg_name_crc_list
101 
102 static void
104 {
105 #define _(id,n,crc) \
106  vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + L2E_MSG_BASE);
107  foreach_vl_msg_name_crc_l2e;
108 #undef _
109 }
110 
111 static void
113 {
114 #define _(N,n) \
115  vl_msg_api_set_handlers(VL_API_##N + L2E_MSG_BASE, \
116  #n, \
117  vl_api_##n##_t_handler, \
118  vl_noop_handler, \
119  vl_api_##n##_t_endian, \
120  vl_api_##n##_t_print, \
121  sizeof(vl_api_##n##_t), 1);
123 #undef _
124 }
125 
126 static clib_error_t *
128 {
129  api_main_t *am = &api_main;
131  u8 *name = format (0, "l2e_%08x%c", api_version, 0);
132 
133  /* Ask for a correctly-sized block of API message decode slots */
134  l2em->msg_id_base = vl_msg_api_get_msg_ids ((char *) name,
136 
137  l2e_api_hookup (vm);
138 
139  /* Add our API messages to the global name_crc hash table */
141 
142  vec_free (name);
143  return (NULL);
144 }
145 
147 
148 /* *INDENT-OFF* */
150  .version = VPP_BUILD_VER,
151  .description = "L2 Emulation",
152 };
153 /* *INDENT-ON* */
154 
155 
156 /*
157  * fd.io coding-style-patch-verification: ON
158  *
159  * Local Variables:
160  * eval: (c-set-style "gnu")
161  * End:
162  */
#define foreach_l2e_api_msg
Definition: l2e_api.c:56
static l2_emulation_main_t l2_emulation_main
Definition: l2e_api.c:67
#define NULL
Definition: clib.h:55
Grouping of global data for the L2 emulation feature.
Definition: l2e.c:25
void l2_emulation_disable(u32 sw_if_index)
Definition: l2e.c:79
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
unsigned char u8
Definition: types.h:56
struct l2_emulation_main_t_ l2_emulation_main_t
L2 Emulation Main.
unsigned int u32
Definition: types.h:88
VLIB_PLUGIN_REGISTER()
unsigned short u16
Definition: types.h:57
#define REPLY_MACRO(t)
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:201
#define BAD_SW_IF_INDEX_LABEL
static clib_error_t * l2e_init(vlib_main_t *vm)
Definition: l2e_api.c:127
vlib_main_t * vm
Definition: buffer.c:294
static void setup_message_id_table(api_main_t *am)
Definition: l2e_api.c:103
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:339
VLIB_API_INIT_FUNCTION(l2e_init)
static void l2e_api_hookup(vlib_main_t *vm)
Definition: l2e_api.c:112
void l2_emulation_enable(u32 sw_if_index)
L2 Emulation is a feautre that is applied to L2 ports to &#39;extract&#39; IP packets from the L2 path and in...
Definition: l2e.c:58
L2 emulation at L3.
Definition: l2e.api:25
#define L2E_MSG_BASE
Definition: l2e_api.c:69
static void vl_api_l2_emulation_t_handler(vl_api_l2_emulation_t *mp)
Definition: l2e_api.c:72
api_main_t api_main
Definition: api_shared.c:35
#define VALIDATE_SW_IF_INDEX(mp)
u16 vl_msg_api_get_msg_ids(const char *name, int n)
Definition: api_shared.c:872