#include "asterisk.h"
#include <fcntl.h>
#include <sys/signal.h>
#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/sched.h"
#include "asterisk/io.h"
#include "asterisk/acl.h"
#include "asterisk/callerid.h"
#include "asterisk/file.h"
#include "asterisk/cli.h"
#include "asterisk/app.h"
#include "asterisk/rtp_engine.h"
#include "asterisk/causes.h"
Go to the source code of this file.
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | load_module (void) |
Function called when our module is loaded. | |
static int | multicast_rtp_call (struct ast_channel *ast, char *dest, int timeout) |
Function called when we should actually call the destination. | |
static int | multicast_rtp_hangup (struct ast_channel *ast) |
Function called when we should hang the channel up. | |
static struct ast_frame * | multicast_rtp_read (struct ast_channel *ast) |
Function called when we should read a frame from the channel. | |
static struct ast_channel * | multicast_rtp_request (const char *type, format_t format, const struct ast_channel *requestor, void *data, int *cause) |
Function called when we should prepare to call the destination. | |
static int | multicast_rtp_write (struct ast_channel *ast, struct ast_frame *f) |
Function called when we should write a frame to the channel. | |
static int | unload_module (void) |
Function called when our module is unloaded. | |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Multicast RTP Paging Channel" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "8586c2a7d357cb591cc3a6607a8f62d1" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_CHANNEL_DRIVER, } |
static struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_channel_tech | multicast_rtp_tech |
static const char | tdesc [] = "Multicast RTP Paging Channel Driver" |
Andreas 'MacBrody' Broadmann <andreas.brodmann@gmail.com>
Definition in file chan_multicast_rtp.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 193 of file chan_multicast_rtp.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 193 of file chan_multicast_rtp.c.
static int load_module | ( | void | ) | [static] |
Function called when our module is loaded.
Definition at line 171 of file chan_multicast_rtp.c.
References ast_channel_register(), ast_log(), AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, LOG_ERROR, and multicast_rtp_tech.
00172 { 00173 if (ast_channel_register(&multicast_rtp_tech)) { 00174 ast_log(LOG_ERROR, "Unable to register channel class 'MulticastRTP'\n"); 00175 return AST_MODULE_LOAD_DECLINE; 00176 } 00177 00178 return AST_MODULE_LOAD_SUCCESS; 00179 }
static int multicast_rtp_call | ( | struct ast_channel * | ast, | |
char * | dest, | |||
int | timeout | |||
) | [static] |
Function called when we should actually call the destination.
Definition at line 88 of file chan_multicast_rtp.c.
References AST_CONTROL_ANSWER, ast_queue_control(), ast_rtp_instance_activate(), and ast_channel::tech_pvt.
00089 { 00090 struct ast_rtp_instance *instance = ast->tech_pvt; 00091 00092 ast_queue_control(ast, AST_CONTROL_ANSWER); 00093 00094 return ast_rtp_instance_activate(instance); 00095 }
static int multicast_rtp_hangup | ( | struct ast_channel * | ast | ) | [static] |
Function called when we should hang the channel up.
Definition at line 98 of file chan_multicast_rtp.c.
References ast_rtp_instance_destroy(), and ast_channel::tech_pvt.
00099 { 00100 struct ast_rtp_instance *instance = ast->tech_pvt; 00101 00102 ast_rtp_instance_destroy(instance); 00103 00104 ast->tech_pvt = NULL; 00105 00106 return 0; 00107 }
static struct ast_frame * multicast_rtp_read | ( | struct ast_channel * | ast | ) | [static] |
Function called when we should read a frame from the channel.
Definition at line 74 of file chan_multicast_rtp.c.
References ast_null_frame.
00075 { 00076 return &ast_null_frame; 00077 }
static struct ast_channel * multicast_rtp_request | ( | const char * | type, | |
format_t | format, | |||
const struct ast_channel * | requestor, | |||
void * | data, | |||
int * | cause | |||
) | [static] |
Function called when we should prepare to call the destination.
Definition at line 110 of file chan_multicast_rtp.c.
References ast_best_codec(), AST_CAUSE_FAILURE, ast_channel_alloc, ast_rtp_instance_destroy(), ast_rtp_instance_new(), ast_rtp_instance_set_remote_address(), ast_sockaddr_parse(), ast_sockaddr_setnull(), AST_STATE_DOWN, ast_strdupa, ast_strlen_zero(), ast_channel::linkedid, multicast_rtp_tech, ast_channel::nativeformats, PARSE_PORT_REQUIRE, ast_channel::rawreadformat, ast_channel::rawwriteformat, ast_channel::readformat, ast_channel::tech, ast_channel::tech_pvt, and ast_channel::writeformat.
00111 { 00112 char *tmp = ast_strdupa(data), *multicast_type = tmp, *destination, *control; 00113 struct ast_rtp_instance *instance; 00114 struct ast_sockaddr control_address; 00115 struct ast_sockaddr destination_address; 00116 struct ast_channel *chan; 00117 format_t fmt = ast_best_codec(format); 00118 00119 ast_sockaddr_setnull(&control_address); 00120 00121 /* If no type was given we can't do anything */ 00122 if (ast_strlen_zero(multicast_type)) { 00123 goto failure; 00124 } 00125 00126 if (!(destination = strchr(tmp, '/'))) { 00127 goto failure; 00128 } 00129 *destination++ = '\0'; 00130 00131 if ((control = strchr(destination, '/'))) { 00132 *control++ = '\0'; 00133 if (!ast_sockaddr_parse(&control_address, control, 00134 PARSE_PORT_REQUIRE)) { 00135 goto failure; 00136 } 00137 } 00138 00139 if (!ast_sockaddr_parse(&destination_address, destination, 00140 PARSE_PORT_REQUIRE)) { 00141 goto failure; 00142 } 00143 00144 if (!(instance = ast_rtp_instance_new("multicast", NULL, &control_address, multicast_type))) { 00145 goto failure; 00146 } 00147 00148 if (!(chan = ast_channel_alloc(1, AST_STATE_DOWN, "", "", "", "", "", requestor ? requestor->linkedid : "", 0, "MulticastRTP/%p", instance))) { 00149 ast_rtp_instance_destroy(instance); 00150 goto failure; 00151 } 00152 00153 ast_rtp_instance_set_remote_address(instance, &destination_address); 00154 00155 chan->tech = &multicast_rtp_tech; 00156 chan->nativeformats = fmt; 00157 chan->writeformat = fmt; 00158 chan->readformat = fmt; 00159 chan->rawwriteformat = fmt; 00160 chan->rawreadformat = fmt; 00161 chan->tech_pvt = instance; 00162 00163 return chan; 00164 00165 failure: 00166 *cause = AST_CAUSE_FAILURE; 00167 return NULL; 00168 }
static int multicast_rtp_write | ( | struct ast_channel * | ast, | |
struct ast_frame * | f | |||
) | [static] |
Function called when we should write a frame to the channel.
Definition at line 80 of file chan_multicast_rtp.c.
References ast_rtp_instance_write(), f, and ast_channel::tech_pvt.
00081 { 00082 struct ast_rtp_instance *instance = ast->tech_pvt; 00083 00084 return ast_rtp_instance_write(instance, f); 00085 }
static int unload_module | ( | void | ) | [static] |
Function called when our module is unloaded.
Definition at line 182 of file chan_multicast_rtp.c.
References ast_channel_unregister(), and multicast_rtp_tech.
00183 { 00184 ast_channel_unregister(&multicast_rtp_tech); 00185 00186 return 0; 00187 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Multicast RTP Paging Channel" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "8586c2a7d357cb591cc3a6607a8f62d1" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_CHANNEL_DRIVER, } [static] |
Definition at line 193 of file chan_multicast_rtp.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 193 of file chan_multicast_rtp.c.
struct ast_channel_tech multicast_rtp_tech [static] |
Definition at line 62 of file chan_multicast_rtp.c.
Referenced by load_module(), multicast_rtp_request(), and unload_module().
const char tdesc[] = "Multicast RTP Paging Channel Driver" [static] |
Definition at line 52 of file chan_multicast_rtp.c.