#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 = "ac1f6a56484a8820659555499174e588" , .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 197 of file chan_multicast_rtp.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 197 of file chan_multicast_rtp.c.
static int load_module | ( | void | ) | [static] |
Function called when our module is loaded.
Definition at line 175 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.
00176 { 00177 if (ast_channel_register(&multicast_rtp_tech)) { 00178 ast_log(LOG_ERROR, "Unable to register channel class 'MulticastRTP'\n"); 00179 return AST_MODULE_LOAD_DECLINE; 00180 } 00181 00182 return AST_MODULE_LOAD_SUCCESS; 00183 }
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 92 of file chan_multicast_rtp.c.
References AST_CONTROL_ANSWER, ast_queue_control(), ast_rtp_instance_activate(), and ast_channel::tech_pvt.
00093 { 00094 struct ast_rtp_instance *instance = ast->tech_pvt; 00095 00096 ast_queue_control(ast, AST_CONTROL_ANSWER); 00097 00098 return ast_rtp_instance_activate(instance); 00099 }
static int multicast_rtp_hangup | ( | struct ast_channel * | ast | ) | [static] |
Function called when we should hang the channel up.
Definition at line 102 of file chan_multicast_rtp.c.
References ast_rtp_instance_destroy(), and ast_channel::tech_pvt.
00103 { 00104 struct ast_rtp_instance *instance = ast->tech_pvt; 00105 00106 ast_rtp_instance_destroy(instance); 00107 00108 ast->tech_pvt = NULL; 00109 00110 return 0; 00111 }
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 78 of file chan_multicast_rtp.c.
References ast_null_frame.
00079 { 00080 return &ast_null_frame; 00081 }
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 114 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.
00115 { 00116 char *tmp = ast_strdupa(data), *multicast_type = tmp, *destination, *control; 00117 struct ast_rtp_instance *instance; 00118 struct ast_sockaddr control_address; 00119 struct ast_sockaddr destination_address; 00120 struct ast_channel *chan; 00121 format_t fmt = ast_best_codec(format); 00122 00123 ast_sockaddr_setnull(&control_address); 00124 00125 /* If no type was given we can't do anything */ 00126 if (ast_strlen_zero(multicast_type)) { 00127 goto failure; 00128 } 00129 00130 if (!(destination = strchr(tmp, '/'))) { 00131 goto failure; 00132 } 00133 *destination++ = '\0'; 00134 00135 if ((control = strchr(destination, '/'))) { 00136 *control++ = '\0'; 00137 if (!ast_sockaddr_parse(&control_address, control, 00138 PARSE_PORT_REQUIRE)) { 00139 goto failure; 00140 } 00141 } 00142 00143 if (!ast_sockaddr_parse(&destination_address, destination, 00144 PARSE_PORT_REQUIRE)) { 00145 goto failure; 00146 } 00147 00148 if (!(instance = ast_rtp_instance_new("multicast", NULL, &control_address, multicast_type))) { 00149 goto failure; 00150 } 00151 00152 if (!(chan = ast_channel_alloc(1, AST_STATE_DOWN, "", "", "", "", "", requestor ? requestor->linkedid : "", 0, "MulticastRTP/%p", instance))) { 00153 ast_rtp_instance_destroy(instance); 00154 goto failure; 00155 } 00156 00157 ast_rtp_instance_set_remote_address(instance, &destination_address); 00158 00159 chan->tech = &multicast_rtp_tech; 00160 chan->nativeformats = fmt; 00161 chan->writeformat = fmt; 00162 chan->readformat = fmt; 00163 chan->rawwriteformat = fmt; 00164 chan->rawreadformat = fmt; 00165 chan->tech_pvt = instance; 00166 00167 return chan; 00168 00169 failure: 00170 *cause = AST_CAUSE_FAILURE; 00171 return NULL; 00172 }
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 84 of file chan_multicast_rtp.c.
References ast_rtp_instance_write(), f, and ast_channel::tech_pvt.
00085 { 00086 struct ast_rtp_instance *instance = ast->tech_pvt; 00087 00088 return ast_rtp_instance_write(instance, f); 00089 }
static int unload_module | ( | void | ) | [static] |
Function called when our module is unloaded.
Definition at line 186 of file chan_multicast_rtp.c.
References ast_channel_unregister(), and multicast_rtp_tech.
00187 { 00188 ast_channel_unregister(&multicast_rtp_tech); 00189 00190 return 0; 00191 }
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 = "ac1f6a56484a8820659555499174e588" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_CHANNEL_DRIVER, } [static] |
Definition at line 197 of file chan_multicast_rtp.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 197 of file chan_multicast_rtp.c.
struct ast_channel_tech multicast_rtp_tech [static] |
Definition at line 66 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 56 of file chan_multicast_rtp.c.