#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <zaptel.h>
#include "asterisk.h"
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/config.h"
#include "asterisk/app.h"
#include "asterisk/options.h"
#include "asterisk/cli.h"
#include "asterisk/say.h"
#include "asterisk/utils.h"
Go to the source code of this file.
Defines | |
#define | CONF_SIZE 160 |
Functions | |
int | careful_write (int fd, unsigned char *data, int len) |
int | conf_exec (struct ast_channel *chan, void *data) |
int | conf_run (struct ast_channel *chan, int confno, int confflags) |
char * | description (void) |
Provides a description of the module. | |
char * | key () |
Returns the ASTERISK_GPL_KEY. | |
int | load_module (void) |
Initialize the module. | |
int | unload_module (void) |
Cleanup all module structures, sockets, etc. | |
int | usecount (void) |
Provides a usecount. | |
Variables | |
char * | app = "ZapBarge" |
char * | descrip |
LOCAL_USER_DECL | |
STANDARD_LOCAL_USER | |
char * | synopsis = "Barge in (monitor) Zap channel" |
char * | tdesc = "Barge in on Zap channel application" |
Definition in file app_zapbarge.c.
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Definition at line 77 of file app_zapbarge.c. |
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Definition at line 79 of file app_zapbarge.c. References ast_log(), and LOG_WARNING. 00080 { 00081 int res; 00082 while(len) { 00083 res = write(fd, data, len); 00084 if (res < 1) { 00085 if (errno != EAGAIN) { 00086 ast_log(LOG_WARNING, "Failed to write audio data to conference: %s\n", strerror(errno)); 00087 return -1; 00088 } else 00089 return 0; 00090 } 00091 len -= res; 00092 data += res; 00093 } 00094 return 0; 00095 }
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Definition at line 262 of file app_zapbarge.c. References ast_channel::_state, ast_answer(), ast_app_getdata(), ast_log(), ast_strlen_zero(), conf_run(), LOCAL_USER_ADD, LOCAL_USER_REMOVE, and LOG_WARNING. Referenced by load_module(). 00263 { 00264 int res=-1; 00265 struct localuser *u; 00266 int retrycnt = 0; 00267 int confflags = 0; 00268 int confno = 0; 00269 char confstr[80] = ""; 00270 00271 LOCAL_USER_ADD(u); 00272 00273 if (!ast_strlen_zero(data)) { 00274 if ((sscanf(data, "Zap/%d", &confno) != 1) && 00275 (sscanf(data, "%d", &confno) != 1)) { 00276 ast_log(LOG_WARNING, "ZapBarge Argument (if specified) must be a channel number, not '%s'\n", (char *)data); 00277 LOCAL_USER_REMOVE(u); 00278 return 0; 00279 } 00280 } 00281 00282 if (chan->_state != AST_STATE_UP) 00283 ast_answer(chan); 00284 00285 while(!confno && (++retrycnt < 4)) { 00286 /* Prompt user for conference number */ 00287 confstr[0] = '\0'; 00288 res = ast_app_getdata(chan, "conf-getchannel",confstr, sizeof(confstr) - 1, 0); 00289 if (res <0) goto out; 00290 if (sscanf(confstr, "%d", &confno) != 1) 00291 confno = 0; 00292 } 00293 if (confno) { 00294 /* XXX Should prompt user for pin if pin is required XXX */ 00295 /* Run the conference */ 00296 res = conf_run(chan, confno, confflags); 00297 } 00298 out: 00299 /* Do the conference */ 00300 LOCAL_USER_REMOVE(u); 00301 return res; 00302 }
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Definition at line 97 of file app_zapbarge.c. References AST_FORMAT_ULAW, ast_frfree(), ast_indicate(), ast_log(), ast_read(), ast_set_read_format(), ast_set_write_format(), ast_waitfor_nandfds(), ast_write(), careful_write(), CONF_SIZE, ast_frame::data, ast_frame::datalen, ast_channel::fds, ast_frame::frametype, LOG_DEBUG, LOG_WARNING, ast_channel::name, ast_frame::offset, ast_frame::samples, ast_frame::subclass, and ast_channel::type. 00098 { 00099 int fd; 00100 struct zt_confinfo ztc; 00101 struct ast_frame *f; 00102 struct ast_channel *c; 00103 struct ast_frame fr; 00104 int outfd; 00105 int ms; 00106 int nfds; 00107 int res; 00108 int flags; 00109 int retryzap; 00110 int origfd; 00111 int ret = -1; 00112 00113 ZT_BUFFERINFO bi; 00114 char __buf[CONF_SIZE + AST_FRIENDLY_OFFSET]; 00115 char *buf = __buf + AST_FRIENDLY_OFFSET; 00116 00117 /* Set it into U-law mode (write) */ 00118 if (ast_set_write_format(chan, AST_FORMAT_ULAW) < 0) { 00119 ast_log(LOG_WARNING, "Unable to set '%s' to write ulaw mode\n", chan->name); 00120 goto outrun; 00121 } 00122 00123 /* Set it into U-law mode (read) */ 00124 if (ast_set_read_format(chan, AST_FORMAT_ULAW) < 0) { 00125 ast_log(LOG_WARNING, "Unable to set '%s' to read ulaw mode\n", chan->name); 00126 goto outrun; 00127 } 00128 ast_indicate(chan, -1); 00129 retryzap = strcasecmp(chan->type, "Zap"); 00130 zapretry: 00131 origfd = chan->fds[0]; 00132 if (retryzap) { 00133 fd = open("/dev/zap/pseudo", O_RDWR); 00134 if (fd < 0) { 00135 ast_log(LOG_WARNING, "Unable to open pseudo channel: %s\n", strerror(errno)); 00136 goto outrun; 00137 } 00138 /* Make non-blocking */ 00139 flags = fcntl(fd, F_GETFL); 00140 if (flags < 0) { 00141 ast_log(LOG_WARNING, "Unable to get flags: %s\n", strerror(errno)); 00142 close(fd); 00143 goto outrun; 00144 } 00145 if (fcntl(fd, F_SETFL, flags | O_NONBLOCK)) { 00146 ast_log(LOG_WARNING, "Unable to set flags: %s\n", strerror(errno)); 00147 close(fd); 00148 goto outrun; 00149 } 00150 /* Setup buffering information */ 00151 memset(&bi, 0, sizeof(bi)); 00152 bi.bufsize = CONF_SIZE; 00153 bi.txbufpolicy = ZT_POLICY_IMMEDIATE; 00154 bi.rxbufpolicy = ZT_POLICY_IMMEDIATE; 00155 bi.numbufs = 4; 00156 if (ioctl(fd, ZT_SET_BUFINFO, &bi)) { 00157 ast_log(LOG_WARNING, "Unable to set buffering information: %s\n", strerror(errno)); 00158 close(fd); 00159 goto outrun; 00160 } 00161 nfds = 1; 00162 } else { 00163 /* XXX Make sure we're not running on a pseudo channel XXX */ 00164 fd = chan->fds[0]; 00165 nfds = 0; 00166 } 00167 memset(&ztc, 0, sizeof(ztc)); 00168 /* Check to see if we're in a conference... */ 00169 ztc.chan = 0; 00170 if (ioctl(fd, ZT_GETCONF, &ztc)) { 00171 ast_log(LOG_WARNING, "Error getting conference\n"); 00172 close(fd); 00173 goto outrun; 00174 } 00175 if (ztc.confmode) { 00176 /* Whoa, already in a conference... Retry... */ 00177 if (!retryzap) { 00178 ast_log(LOG_DEBUG, "Zap channel is in a conference already, retrying with pseudo\n"); 00179 retryzap = 1; 00180 goto zapretry; 00181 } 00182 } 00183 memset(&ztc, 0, sizeof(ztc)); 00184 /* Add us to the conference */ 00185 ztc.chan = 0; 00186 ztc.confno = confno; 00187 ztc.confmode = ZT_CONF_MONITORBOTH; 00188 00189 if (ioctl(fd, ZT_SETCONF, &ztc)) { 00190 ast_log(LOG_WARNING, "Error setting conference\n"); 00191 close(fd); 00192 goto outrun; 00193 } 00194 ast_log(LOG_DEBUG, "Placed channel %s in ZAP channel %d monitor\n", chan->name, confno); 00195 00196 for(;;) { 00197 outfd = -1; 00198 ms = -1; 00199 c = ast_waitfor_nandfds(&chan, 1, &fd, nfds, NULL, &outfd, &ms); 00200 if (c) { 00201 if (c->fds[0] != origfd) { 00202 if (retryzap) { 00203 /* Kill old pseudo */ 00204 close(fd); 00205 } 00206 ast_log(LOG_DEBUG, "Ooh, something swapped out under us, starting over\n"); 00207 retryzap = 0; 00208 goto zapretry; 00209 } 00210 f = ast_read(c); 00211 if (!f) 00212 break; 00213 if ((f->frametype == AST_FRAME_DTMF) && (f->subclass == '#')) { 00214 ret = 0; 00215 break; 00216 } else if (fd != chan->fds[0]) { 00217 if (f->frametype == AST_FRAME_VOICE) { 00218 if (f->subclass == AST_FORMAT_ULAW) { 00219 /* Carefully write */ 00220 careful_write(fd, f->data, f->datalen); 00221 } else 00222 ast_log(LOG_WARNING, "Huh? Got a non-ulaw (%d) frame in the conference\n", f->subclass); 00223 } 00224 } 00225 ast_frfree(f); 00226 } else if (outfd > -1) { 00227 res = read(outfd, buf, CONF_SIZE); 00228 if (res > 0) { 00229 memset(&fr, 0, sizeof(fr)); 00230 fr.frametype = AST_FRAME_VOICE; 00231 fr.subclass = AST_FORMAT_ULAW; 00232 fr.datalen = res; 00233 fr.samples = res; 00234 fr.data = buf; 00235 fr.offset = AST_FRIENDLY_OFFSET; 00236 if (ast_write(chan, &fr) < 0) { 00237 ast_log(LOG_WARNING, "Unable to write frame to channel: %s\n", strerror(errno)); 00238 /* break; */ 00239 } 00240 } else 00241 ast_log(LOG_WARNING, "Failed to read frame: %s\n", strerror(errno)); 00242 } 00243 } 00244 if (fd != chan->fds[0]) 00245 close(fd); 00246 else { 00247 /* Take out of conference */ 00248 /* Add us to the conference */ 00249 ztc.chan = 0; 00250 ztc.confno = 0; 00251 ztc.confmode = 0; 00252 if (ioctl(fd, ZT_SETCONF, &ztc)) { 00253 ast_log(LOG_WARNING, "Error setting conference\n"); 00254 } 00255 } 00256 00257 outrun: 00258 00259 return ret; 00260 }
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Provides a description of the module.
Definition at line 320 of file app_zapbarge.c. 00321 {
00322 return tdesc;
00323 }
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Returns the ASTERISK_GPL_KEY. This returns the ASTERISK_GPL_KEY, signifiying that you agree to the terms of the GPL stated in the ASTERISK_GPL_KEY. Your module will not load if it does not return the EXACT message:
char *key(void) { return ASTERISK_GPL_KEY; }
Definition at line 332 of file app_zapbarge.c. 00333 {
00334 return ASTERISK_GPL_KEY;
00335 }
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Initialize the module. Initialize the Agents module. This function is being called by Asterisk when loading the module. Among other thing it registers applications, cli commands and reads the cofiguration file.
Definition at line 315 of file app_zapbarge.c. References app, ast_register_application(), conf_exec(), descrip, and synopsis. 00316 { 00317 return ast_register_application(app, conf_exec, synopsis, descrip); 00318 }
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Cleanup all module structures, sockets, etc. This is called at exit. Any registrations and memory allocations need to be unregistered and free'd here. Nothing else will do these for you (until exit).
Definition at line 304 of file app_zapbarge.c. References app, and ast_unregister_application(). 00305 { 00306 int res; 00307 00308 res = ast_unregister_application(app); 00309 00310 STANDARD_HANGUP_LOCALUSERS; 00311 00312 return res; 00313 }
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Provides a usecount. This function will be called by various parts of asterisk. Basically, all it has to do is to return a usecount when called. You will need to maintain your usecount within the module somewhere. The usecount should be how many channels provided by this module are in use.
Definition at line 325 of file app_zapbarge.c. References STANDARD_USECOUNT. 00326 { 00327 int res; 00328 STANDARD_USECOUNT(res); 00329 return res; 00330 }
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Definition at line 61 of file app_zapbarge.c. Referenced by load_module(), and unload_module(). |
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Initial value: " ZapBarge([channel]): Barges in on a specified zap\n" "channel or prompts if one is not specified. Returns\n" "-1 when caller user hangs up and is independent of the\n" "state of the channel being monitored." Definition at line 65 of file app_zapbarge.c. Referenced by load_module(). |
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Definition at line 74 of file app_zapbarge.c. |
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Definition at line 72 of file app_zapbarge.c. |
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Definition at line 63 of file app_zapbarge.c. Referenced by load_module(). |
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Definition at line 59 of file app_zapbarge.c. |