182 lines
4.3 KiB
C
182 lines
4.3 KiB
C
/*
|
|
* libwebsockets - small server side websockets and web server implementation
|
|
*
|
|
* Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
|
|
#define _WINSOCK_DEPRECATED_NO_WARNINGS
|
|
#endif
|
|
#include "private-lib-core.h"
|
|
|
|
/*
|
|
* ie, if the plugins api needed at all
|
|
*/
|
|
|
|
#if defined(LWS_WITH_PLUGINS_API) && (UV_VERSION_MAJOR > 0)
|
|
|
|
const lws_plugin_header_t *
|
|
lws_plat_dlopen(struct lws_plugin **pplugin, const char *libpath,
|
|
const char *sofilename, const char *_class,
|
|
each_plugin_cb_t each, void *each_user)
|
|
{
|
|
const lws_plugin_header_t *hdr;
|
|
struct lws_plugin *pin;
|
|
char sym[96], *dot;
|
|
uv_lib_t lib;
|
|
void *v;
|
|
int m;
|
|
|
|
lib.errmsg = NULL;
|
|
lib.handle = NULL;
|
|
|
|
if (uv_dlopen(libpath, &lib)) {
|
|
uv_dlerror(&lib);
|
|
lwsl_err("Error loading DSO: %s\n", lib.errmsg);
|
|
uv_dlclose(&lib);
|
|
return NULL;
|
|
}
|
|
|
|
/* we could open it... can we get his export struct? */
|
|
m = lws_snprintf(sym, sizeof(sym) - 1, "%s", sofilename);
|
|
if (m < 4)
|
|
goto bail;
|
|
dot = strchr(sym, '.');
|
|
if (dot)
|
|
*dot = '\0'; /* snip the .so or .lib or what-have-you*/
|
|
|
|
if (uv_dlsym(&lib, sym, &v)) {
|
|
uv_dlerror(&lib);
|
|
lwsl_err("%s: Failed to get '%s' on %s: %s\n",
|
|
__func__, path, libpath, lib.errmsg);
|
|
goto bail;
|
|
}
|
|
|
|
hdr = (const lws_plugin_header_t *)v;
|
|
if (hdr->api_magic != LWS_PLUGIN_API_MAGIC) {
|
|
lwsl_info("%s: plugin %s has outdated api %d (vs %d)\n",
|
|
__func__, libpath, hdr->api_magic,
|
|
LWS_PLUGIN_API_MAGIC);
|
|
goto bail;
|
|
}
|
|
|
|
if (strcmp(hdr->lws_build_hash, LWS_BUILD_HASH))
|
|
goto bail;
|
|
|
|
if (strcmp(hdr->_class, _class))
|
|
goto bail;
|
|
|
|
/*
|
|
* We don't already have one of these, right?
|
|
*/
|
|
|
|
pin = *pplugin;
|
|
while (pin) {
|
|
if (!strcmp(pin->hdr->name, hdr->name))
|
|
goto bail;
|
|
pin = pin->list;
|
|
}
|
|
|
|
/*
|
|
* OK let's bring it in
|
|
*/
|
|
|
|
pin = lws_malloc(sizeof(*pin), __func__);
|
|
if (!pin)
|
|
goto bail;
|
|
|
|
pin->list = *pplugin;
|
|
*pplugin = pin;
|
|
|
|
pin->u.lib = lib;
|
|
pin->hdr = hdr;
|
|
|
|
if (each)
|
|
each(pin, each_user);
|
|
|
|
return hdr;
|
|
|
|
bail:
|
|
uv_dlclose(&lib);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
lws_plat_destroy_dl(struct lws_plugin *p)
|
|
{
|
|
uv_dlclose(&p->u.lib);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Specifically for protocol plugins support
|
|
*/
|
|
|
|
#if defined(LWS_WITH_PLUGINS) && (UV_VERSION_MAJOR > 0)
|
|
|
|
static int
|
|
protocol_plugin_cb(struct lws_plugin *pin, void *each_user)
|
|
{
|
|
struct lws_context *context = (struct lws_context *)each_user;
|
|
const lws_plugin_protocol_t *plpr =
|
|
(const lws_plugin_protocol_t *)pin->hdr;
|
|
|
|
context->plugin_protocol_count += plpr->count_protocols;
|
|
context->plugin_extension_count += plpr->count_extensions;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int
|
|
lws_plat_plugins_init(struct lws_context *context, const char * const *d)
|
|
{
|
|
#if defined(LWS_WITH_PLUGINS) && (UV_VERSION_MAJOR > 0)
|
|
if (info->plugin_dirs) {
|
|
uv_loop_init(&context->uv.loop);
|
|
lws_plugins_init(&context->plugin_list, info->plugin_dirs,
|
|
"lws_protocol_plugin", NULL,
|
|
protocol_plugin_cb, context);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
lws_plat_plugins_destroy(struct lws_context * context)
|
|
{
|
|
#if defined(LWS_WITH_PLUGINS) && (UV_VERSION_MAJOR > 0)
|
|
if (lws_check_opt(context->options, LWS_SERVER_OPTION_LIBUV) &&
|
|
context->plugin_list) {
|
|
lws_plugins_destroy(&context->plugin_list, NULL, NULL);
|
|
while (uv_loop_close(&context->uv.loop))
|
|
;
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|