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/*
* builtinurl.c - skeleton vpp engine plug-in
*
* Copyright (c) 2019 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 <builtinurl/builtinurl.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vpp/app/version.h>
#include <stdbool.h>
/* define message IDs */
#include <builtinurl/builtinurl_msg_enum.h>
/* define message structures */
#define vl_typedefs
#include <builtinurl/builtinurl_all_api_h.h>
#undef vl_typedefs
/* define generated endian-swappers */
#define vl_endianfun
#include <builtinurl/builtinurl_all_api_h.h>
#undef vl_endianfun
/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <builtinurl/builtinurl_all_api_h.h>
#undef vl_printfun
/* Get the API version number */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <builtinurl/builtinurl_all_api_h.h>
#undef vl_api_version
#define REPLY_MSG_ID_BASE bmp->msg_id_base
#include <vlibapi/api_helper_macros.h>
builtinurl_main_t builtinurl_main;
/* List of message types that this plugin understands */
#define foreach_builtinurl_plugin_api_msg \
_(BUILTINURL_ENABLE, builtinurl_enable)
/* Action function shared between message handler and debug CLI */
int
builtinurl_enable (builtinurl_main_t * bmp)
{
void (*fp) (void *, char *, int);
if (bmp->initialized)
return 0;
/* Look up the builtin URL registration handler */
fp = vlib_get_plugin_symbol
("http_static_plugin.so", "http_static_server_register_builtin_handler");
/* Most likely, the http_static plugin isn't loaded. Done. */
if (fp == 0)
return VNET_API_ERROR_NO_SUCH_TABLE;
bmp->register_handler = fp;
builtinurl_handler_init (bmp);
bmp->initialized = 1;
return 0;
}
static clib_error_t *
builtinurl_enable_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
builtinurl_main_t *bmp = &builtinurl_main;
int rv;
rv = builtinurl_enable (bmp);
switch (rv)
{
case 0:
break;
case VNET_API_ERROR_NO_SUCH_TABLE:
return clib_error_return
(0, "http_static_server_register_builtin_handler undefined");
break;
default:
return clib_error_return (0, "builtinurl_enable returned %d", rv);
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (builtinurl_enable_command, static) =
{
.path = "builtinurl enable",
.short_help = "Turn on builtin http/https GET and POST urls",
.function = builtinurl_enable_command_fn,
};
/* *INDENT-ON* */
/* API message handler */
static void vl_api_builtinurl_enable_t_handler
(vl_api_builtinurl_enable_t * mp)
{
vl_api_builtinurl_enable_reply_t *rmp;
builtinurl_main_t *bmp = &builtinurl_main;
int rv;
rv = builtinurl_enable (bmp);
REPLY_MACRO (VL_API_BUILTINURL_ENABLE_REPLY);
}
/* Set up the API message handling tables */
static clib_error_t *
builtinurl_plugin_api_hookup (vlib_main_t * vm)
{
builtinurl_main_t *bmp = &builtinurl_main;
#define _(N,n) \
vl_msg_api_set_handlers((VL_API_##N + bmp->msg_id_base), \
#n, \
vl_api_##n##_t_handler, \
vl_noop_handler, \
vl_api_##n##_t_endian, \
vl_api_##n##_t_print, \
sizeof(vl_api_##n##_t), 1);
foreach_builtinurl_plugin_api_msg;
#undef _
return 0;
}
#define vl_msg_name_crc_list
#include <builtinurl/builtinurl_all_api_h.h>
#undef vl_msg_name_crc_list
static void
setup_message_id_table (builtinurl_main_t * bmp, api_main_t * am)
{
#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + bmp->msg_id_base);
foreach_vl_msg_name_crc_builtinurl;
#undef _
}
static clib_error_t *
builtinurl_init (vlib_main_t * vm)
{
builtinurl_main_t *bmp = &builtinurl_main;
clib_error_t *error = 0;
u8 *name;
bmp->vlib_main = vm;
bmp->vnet_main = vnet_get_main ();
name = format (0, "builtinurl_%08x%c", api_version, 0);
/* Ask for a correctly-sized block of API message decode slots */
bmp->msg_id_base = vl_msg_api_get_msg_ids
((char *) name, VL_MSG_FIRST_AVAILABLE);
error = builtinurl_plugin_api_hookup (vm);
/* Add our API messages to the global name_crc hash table */
setup_message_id_table (bmp, &api_main);
vec_free (name);
return error;
}
VLIB_INIT_FUNCTION (builtinurl_init);
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () =
{
.version = VPP_BUILD_VER,
.description = "vpp built-in URL support",
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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