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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, Digium, Inc.
*
* Mark Michelson <mmichelson@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
#include "asterisk.h"
#include <pjsip.h>
#include <pjlib.h>
#include "asterisk/res_pjsip.h"
#include "include/res_pjsip_private.h"
#include "asterisk/sorcery.h"
#include "asterisk/ast_version.h"
#define DEFAULT_MAX_FORWARDS 70
#define DEFAULT_USERAGENT_PREFIX "Asterisk PBX"
#define DEFAULT_OUTBOUND_ENDPOINT "default_outbound_endpoint"
static char default_useragent[128];
struct global_config {
SORCERY_OBJECT(details);
AST_DECLARE_STRING_FIELDS(
AST_STRING_FIELD(useragent);
AST_STRING_FIELD(default_outbound_endpoint);
);
/* Value to put in Max-Forwards header */
unsigned int max_forwards;
};
static void global_destructor(void *obj)
{
struct global_config *cfg = obj;
ast_string_field_free_memory(cfg);
}
static void *global_alloc(const char *name)
{
struct global_config *cfg = ast_sorcery_generic_alloc(sizeof(*cfg), global_destructor);
if (!cfg || ast_string_field_init(cfg, 64)) {
return NULL;
}
return cfg;
}
static int global_apply(const struct ast_sorcery *sorcery, void *obj)
{
struct global_config *cfg = obj;
char max_forwards[10];
snprintf(max_forwards, sizeof(max_forwards), "%u", cfg->max_forwards);
ast_sip_add_global_request_header("Max-Forwards", max_forwards, 1);
ast_sip_add_global_request_header("User-Agent", cfg->useragent, 1);
ast_sip_add_global_response_header("Server", cfg->useragent, 1);
return 0;
}
static struct global_config *get_global_cfg(void)
{
RAII_VAR(struct ao2_container *, globals, ast_sorcery_retrieve_by_fields(
ast_sip_get_sorcery(), "global", AST_RETRIEVE_FLAG_MULTIPLE,
NULL), ao2_cleanup);
if (!globals) {
return NULL;
}
return ao2_find(globals, NULL, 0);
}
char *ast_sip_global_default_outbound_endpoint(void)
{
RAII_VAR(struct global_config *, cfg, get_global_cfg(), ao2_cleanup);
if (!cfg) {
return NULL;
}
return ast_strdup(cfg->default_outbound_endpoint);
}
int ast_sip_initialize_sorcery_global(struct ast_sorcery *sorcery)
{
snprintf(default_useragent, sizeof(default_useragent), "%s %s", DEFAULT_USERAGENT_PREFIX, ast_get_version());
ast_sorcery_apply_default(sorcery, "global", "config", "pjsip.conf,criteria=type=global");
if (ast_sorcery_object_register(sorcery, "global", global_alloc, NULL, global_apply)) {
return -1;
}
ast_sorcery_object_field_register(sorcery, "global", "type", "", OPT_NOOP_T, 0, 0);
ast_sorcery_object_field_register(sorcery, "global", "max_forwards", __stringify(DEFAULT_MAX_FORWARDS),
OPT_UINT_T, 0, FLDSET(struct global_config, max_forwards));
ast_sorcery_object_field_register(sorcery, "global", "user_agent", default_useragent,
OPT_STRINGFIELD_T, 0, STRFLDSET(struct global_config, useragent));
ast_sorcery_object_field_register(sorcery, "global", "default_outbound_endpoint", DEFAULT_OUTBOUND_ENDPOINT,
OPT_STRINGFIELD_T, 0, STRFLDSET(struct global_config, default_outbound_endpoint));
return 0;
}
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