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
|
/*
* oddbuf.c - awkward chained buffer geometry test tool
*
* Copyright (c) 2019 by 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.
*/
#include <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <oddbuf/oddbuf.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vpp/app/version.h>
#include <stdbool.h>
/* define message IDs */
#include <oddbuf/oddbuf.api_enum.h>
#include <oddbuf/oddbuf.api_types.h>
#define REPLY_MSG_ID_BASE omp->msg_id_base
#include <vlibapi/api_helper_macros.h>
oddbuf_main_t oddbuf_main;
/* Action function shared between message handler and debug CLI */
int
oddbuf_enable_disable (oddbuf_main_t * omp, u32 sw_if_index,
int enable_disable)
{
vnet_sw_interface_t *sw;
int rv = 0;
/* Utterly wrong? */
if (pool_is_free_index (omp->vnet_main->interface_main.sw_interfaces,
sw_if_index))
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
/* Not a physical port? */
sw = vnet_get_sw_interface (omp->vnet_main, sw_if_index);
if (sw->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
vnet_feature_enable_disable ("device-input", "oddbuf",
sw_if_index, enable_disable, 0, 0);
return rv;
}
static clib_error_t *
oddbuf_enable_disable_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
oddbuf_main_t *omp = &oddbuf_main;
u32 sw_if_index = ~0;
int enable_disable = 1;
int rv;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "disable"))
enable_disable = 0;
else if (unformat (input, "%U", unformat_vnet_sw_interface,
omp->vnet_main, &sw_if_index))
;
else
break;
}
if (sw_if_index == ~0)
return clib_error_return (0, "Please specify an interface...");
rv = oddbuf_enable_disable (omp, sw_if_index, enable_disable);
switch (rv)
{
case 0:
break;
case VNET_API_ERROR_INVALID_SW_IF_INDEX:
return clib_error_return
(0, "Invalid interface, only works on physical ports");
break;
case VNET_API_ERROR_UNIMPLEMENTED:
return clib_error_return (0,
"Device driver doesn't support redirection");
break;
default:
return clib_error_return (0, "oddbuf_enable_disable returned %d", rv);
}
return 0;
}
VLIB_CLI_COMMAND (oddbuf_enable_disable_command, static) =
{
.path = "oddbuf enable-disable",
.short_help =
"oddbuf enable-disable <interface-name> [disable]",
.function = oddbuf_enable_disable_command_fn,
};
/* API message handler */
static void vl_api_oddbuf_enable_disable_t_handler
(vl_api_oddbuf_enable_disable_t * mp)
{
vl_api_oddbuf_enable_disable_reply_t *rmp;
oddbuf_main_t *omp = &oddbuf_main;
u32 sw_if_index;
int rv;
VALIDATE_SW_IF_INDEX (mp);
sw_if_index = clib_net_to_host_u32 (mp->sw_if_index);
rv = oddbuf_enable_disable (omp, sw_if_index, (int) (mp->enable_disable));
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_ODDBUF_ENABLE_DISABLE_REPLY);
}
#include <oddbuf/oddbuf.api.c>
static clib_error_t *
oddbuf_init (vlib_main_t * vm)
{
oddbuf_main_t *om = &oddbuf_main;
clib_error_t *error = 0;
om->vlib_main = vm;
om->vnet_main = vnet_get_main ();
/* Ask for a correctly-sized block of API message decode slots */
om->msg_id_base = setup_message_id_table ();
/* Basic setup */
om->n_to_copy = 1;
om->second_chunk_offset = 1;
om->first_chunk_offset = 0;
return error;
}
VLIB_INIT_FUNCTION (oddbuf_init);
VNET_FEATURE_INIT (oddbuf, static) =
{
.arc_name = "device-input",
.node_name = "oddbuf",
.runs_before = VNET_FEATURES ("ethernet-input"),
};
VLIB_PLUGIN_REGISTER () =
{
.version = VPP_BUILD_VER,
.description = "Awkward chained buffer geometry generator",
.default_disabled = 1,
};
static clib_error_t *
oddbuf_config_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
oddbuf_main_t *omp = &oddbuf_main;
unformat_input_t _line_input, *line_input = &_line_input;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "n_to_copy %d", &omp->n_to_copy))
;
else if (unformat (line_input, "offset %d", &omp->second_chunk_offset))
;
else if (unformat (line_input, "first_offset %d",
&omp->first_chunk_offset))
;
else
break;
}
unformat_free (line_input);
return 0;
}
VLIB_CLI_COMMAND (oddbuf_config_command, static) =
{
.path = "oddbuf configure",
.short_help =
"oddbuf configure n_to_copy <nn> offset <nn> first_offset <nn>",
.function = oddbuf_config_command_fn,
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
