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00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 357264 $")
00029
00030 #include "asterisk/_private.h"
00031
00032 #include <sys/time.h>
00033 #include <signal.h>
00034 #include <math.h>
00035
00036 #include "asterisk/paths.h"
00037
00038 #include "asterisk/pbx.h"
00039 #include "asterisk/frame.h"
00040 #include "asterisk/mod_format.h"
00041 #include "asterisk/sched.h"
00042 #include "asterisk/channel.h"
00043 #include "asterisk/musiconhold.h"
00044 #include "asterisk/say.h"
00045 #include "asterisk/file.h"
00046 #include "asterisk/cli.h"
00047 #include "asterisk/translate.h"
00048 #include "asterisk/manager.h"
00049 #include "asterisk/cel.h"
00050 #include "asterisk/chanvars.h"
00051 #include "asterisk/linkedlists.h"
00052 #include "asterisk/indications.h"
00053 #include "asterisk/monitor.h"
00054 #include "asterisk/causes.h"
00055 #include "asterisk/callerid.h"
00056 #include "asterisk/utils.h"
00057 #include "asterisk/lock.h"
00058 #include "asterisk/app.h"
00059 #include "asterisk/transcap.h"
00060 #include "asterisk/devicestate.h"
00061 #include "asterisk/threadstorage.h"
00062 #include "asterisk/slinfactory.h"
00063 #include "asterisk/audiohook.h"
00064 #include "asterisk/framehook.h"
00065 #include "asterisk/timing.h"
00066 #include "asterisk/autochan.h"
00067 #include "asterisk/stringfields.h"
00068 #include "asterisk/global_datastores.h"
00069 #include "asterisk/data.h"
00070
00071 #ifdef HAVE_EPOLL
00072 #include <sys/epoll.h>
00073 #endif
00074
00075 #if defined(KEEP_TILL_CHANNEL_PARTY_NUMBER_INFO_NEEDED)
00076 #if defined(HAVE_PRI)
00077 #include "libpri.h"
00078 #endif
00079 #endif
00080
00081 struct ast_epoll_data {
00082 struct ast_channel *chan;
00083 int which;
00084 };
00085
00086
00087 #if 0
00088 #define MONITOR_CONSTANT_DELAY
00089 #define MONITOR_DELAY 150 * 8
00090 #endif
00091
00092
00093 static int shutting_down;
00094
00095 static int uniqueint;
00096
00097 unsigned long global_fin, global_fout;
00098
00099 AST_THREADSTORAGE(state2str_threadbuf);
00100 #define STATE2STR_BUFSIZE 32
00101
00102
00103
00104 #define AST_DEFAULT_EMULATE_DTMF_DURATION 100
00105
00106
00107 #define AST_MIN_DTMF_DURATION 80
00108
00109
00110
00111 #define AST_MIN_DTMF_GAP 45
00112
00113
00114 struct chanlist {
00115 const struct ast_channel_tech *tech;
00116 AST_LIST_ENTRY(chanlist) list;
00117 };
00118
00119 #ifdef CHANNEL_TRACE
00120
00121 struct ast_chan_trace_data {
00122 int enabled;
00123 AST_LIST_HEAD_NOLOCK(, ast_chan_trace) trace;
00124 };
00125
00126
00127 struct ast_chan_trace {
00128 char context[AST_MAX_CONTEXT];
00129 char exten[AST_MAX_EXTENSION];
00130 int priority;
00131 AST_LIST_ENTRY(ast_chan_trace) entry;
00132 };
00133 #endif
00134
00135
00136 static AST_RWLIST_HEAD_STATIC(backends, chanlist);
00137
00138 #ifdef LOW_MEMORY
00139 #define NUM_CHANNEL_BUCKETS 61
00140 #else
00141 #define NUM_CHANNEL_BUCKETS 1567
00142 #endif
00143
00144 #if 0
00145 #define DATA_EXPORT_CALLERID(MEMBER) \
00146 MEMBER(ast_callerid, cid_dnid, AST_DATA_STRING) \
00147 MEMBER(ast_callerid, cid_num, AST_DATA_STRING) \
00148 MEMBER(ast_callerid, cid_name, AST_DATA_STRING) \
00149 MEMBER(ast_callerid, cid_ani, AST_DATA_STRING) \
00150 MEMBER(ast_callerid, cid_pres, AST_DATA_INTEGER) \
00151 MEMBER(ast_callerid, cid_ani2, AST_DATA_INTEGER) \
00152 MEMBER(ast_callerid, cid_tag, AST_DATA_STRING)
00153
00154 AST_DATA_STRUCTURE(ast_callerid, DATA_EXPORT_CALLERID);
00155 #endif
00156
00157 #define DATA_EXPORT_CHANNEL(MEMBER) \
00158 MEMBER(ast_channel, blockproc, AST_DATA_STRING) \
00159 MEMBER(ast_channel, appl, AST_DATA_STRING) \
00160 MEMBER(ast_channel, data, AST_DATA_STRING) \
00161 MEMBER(ast_channel, name, AST_DATA_STRING) \
00162 MEMBER(ast_channel, language, AST_DATA_STRING) \
00163 MEMBER(ast_channel, musicclass, AST_DATA_STRING) \
00164 MEMBER(ast_channel, accountcode, AST_DATA_STRING) \
00165 MEMBER(ast_channel, peeraccount, AST_DATA_STRING) \
00166 MEMBER(ast_channel, userfield, AST_DATA_STRING) \
00167 MEMBER(ast_channel, call_forward, AST_DATA_STRING) \
00168 MEMBER(ast_channel, uniqueid, AST_DATA_STRING) \
00169 MEMBER(ast_channel, linkedid, AST_DATA_STRING) \
00170 MEMBER(ast_channel, parkinglot, AST_DATA_STRING) \
00171 MEMBER(ast_channel, hangupsource, AST_DATA_STRING) \
00172 MEMBER(ast_channel, dialcontext, AST_DATA_STRING) \
00173 MEMBER(ast_channel, rings, AST_DATA_INTEGER) \
00174 MEMBER(ast_channel, priority, AST_DATA_INTEGER) \
00175 MEMBER(ast_channel, macropriority, AST_DATA_INTEGER) \
00176 MEMBER(ast_channel, adsicpe, AST_DATA_INTEGER) \
00177 MEMBER(ast_channel, fin, AST_DATA_UNSIGNED_INTEGER) \
00178 MEMBER(ast_channel, fout, AST_DATA_UNSIGNED_INTEGER) \
00179 MEMBER(ast_channel, emulate_dtmf_duration, AST_DATA_UNSIGNED_INTEGER) \
00180 MEMBER(ast_channel, visible_indication, AST_DATA_INTEGER) \
00181 MEMBER(ast_channel, context, AST_DATA_STRING) \
00182 MEMBER(ast_channel, exten, AST_DATA_STRING) \
00183 MEMBER(ast_channel, macrocontext, AST_DATA_STRING) \
00184 MEMBER(ast_channel, macroexten, AST_DATA_STRING)
00185
00186 AST_DATA_STRUCTURE(ast_channel, DATA_EXPORT_CHANNEL);
00187
00188
00189
00190 static struct ao2_container *channels;
00191
00192
00193
00194
00195
00196 static const struct {
00197 int cause;
00198 const char *name;
00199 const char *desc;
00200 } causes[] = {
00201 { AST_CAUSE_UNALLOCATED, "UNALLOCATED", "Unallocated (unassigned) number" },
00202 { AST_CAUSE_NO_ROUTE_TRANSIT_NET, "NO_ROUTE_TRANSIT_NET", "No route to specified transmit network" },
00203 { AST_CAUSE_NO_ROUTE_DESTINATION, "NO_ROUTE_DESTINATION", "No route to destination" },
00204 { AST_CAUSE_CHANNEL_UNACCEPTABLE, "CHANNEL_UNACCEPTABLE", "Channel unacceptable" },
00205 { AST_CAUSE_CALL_AWARDED_DELIVERED, "CALL_AWARDED_DELIVERED", "Call awarded and being delivered in an established channel" },
00206 { AST_CAUSE_NORMAL_CLEARING, "NORMAL_CLEARING", "Normal Clearing" },
00207 { AST_CAUSE_USER_BUSY, "USER_BUSY", "User busy" },
00208 { AST_CAUSE_NO_USER_RESPONSE, "NO_USER_RESPONSE", "No user responding" },
00209 { AST_CAUSE_NO_ANSWER, "NO_ANSWER", "User alerting, no answer" },
00210 { AST_CAUSE_CALL_REJECTED, "CALL_REJECTED", "Call Rejected" },
00211 { AST_CAUSE_NUMBER_CHANGED, "NUMBER_CHANGED", "Number changed" },
00212 { AST_CAUSE_DESTINATION_OUT_OF_ORDER, "DESTINATION_OUT_OF_ORDER", "Destination out of order" },
00213 { AST_CAUSE_INVALID_NUMBER_FORMAT, "INVALID_NUMBER_FORMAT", "Invalid number format" },
00214 { AST_CAUSE_FACILITY_REJECTED, "FACILITY_REJECTED", "Facility rejected" },
00215 { AST_CAUSE_RESPONSE_TO_STATUS_ENQUIRY, "RESPONSE_TO_STATUS_ENQUIRY", "Response to STATus ENQuiry" },
00216 { AST_CAUSE_NORMAL_UNSPECIFIED, "NORMAL_UNSPECIFIED", "Normal, unspecified" },
00217 { AST_CAUSE_NORMAL_CIRCUIT_CONGESTION, "NORMAL_CIRCUIT_CONGESTION", "Circuit/channel congestion" },
00218 { AST_CAUSE_NETWORK_OUT_OF_ORDER, "NETWORK_OUT_OF_ORDER", "Network out of order" },
00219 { AST_CAUSE_NORMAL_TEMPORARY_FAILURE, "NORMAL_TEMPORARY_FAILURE", "Temporary failure" },
00220 { AST_CAUSE_SWITCH_CONGESTION, "SWITCH_CONGESTION", "Switching equipment congestion" },
00221 { AST_CAUSE_ACCESS_INFO_DISCARDED, "ACCESS_INFO_DISCARDED", "Access information discarded" },
00222 { AST_CAUSE_REQUESTED_CHAN_UNAVAIL, "REQUESTED_CHAN_UNAVAIL", "Requested channel not available" },
00223 { AST_CAUSE_PRE_EMPTED, "PRE_EMPTED", "Pre-empted" },
00224 { AST_CAUSE_FACILITY_NOT_SUBSCRIBED, "FACILITY_NOT_SUBSCRIBED", "Facility not subscribed" },
00225 { AST_CAUSE_OUTGOING_CALL_BARRED, "OUTGOING_CALL_BARRED", "Outgoing call barred" },
00226 { AST_CAUSE_INCOMING_CALL_BARRED, "INCOMING_CALL_BARRED", "Incoming call barred" },
00227 { AST_CAUSE_BEARERCAPABILITY_NOTAUTH, "BEARERCAPABILITY_NOTAUTH", "Bearer capability not authorized" },
00228 { AST_CAUSE_BEARERCAPABILITY_NOTAVAIL, "BEARERCAPABILITY_NOTAVAIL", "Bearer capability not available" },
00229 { AST_CAUSE_BEARERCAPABILITY_NOTIMPL, "BEARERCAPABILITY_NOTIMPL", "Bearer capability not implemented" },
00230 { AST_CAUSE_CHAN_NOT_IMPLEMENTED, "CHAN_NOT_IMPLEMENTED", "Channel not implemented" },
00231 { AST_CAUSE_FACILITY_NOT_IMPLEMENTED, "FACILITY_NOT_IMPLEMENTED", "Facility not implemented" },
00232 { AST_CAUSE_INVALID_CALL_REFERENCE, "INVALID_CALL_REFERENCE", "Invalid call reference value" },
00233 { AST_CAUSE_INCOMPATIBLE_DESTINATION, "INCOMPATIBLE_DESTINATION", "Incompatible destination" },
00234 { AST_CAUSE_INVALID_MSG_UNSPECIFIED, "INVALID_MSG_UNSPECIFIED", "Invalid message unspecified" },
00235 { AST_CAUSE_MANDATORY_IE_MISSING, "MANDATORY_IE_MISSING", "Mandatory information element is missing" },
00236 { AST_CAUSE_MESSAGE_TYPE_NONEXIST, "MESSAGE_TYPE_NONEXIST", "Message type nonexist." },
00237 { AST_CAUSE_WRONG_MESSAGE, "WRONG_MESSAGE", "Wrong message" },
00238 { AST_CAUSE_IE_NONEXIST, "IE_NONEXIST", "Info. element nonexist or not implemented" },
00239 { AST_CAUSE_INVALID_IE_CONTENTS, "INVALID_IE_CONTENTS", "Invalid information element contents" },
00240 { AST_CAUSE_WRONG_CALL_STATE, "WRONG_CALL_STATE", "Message not compatible with call state" },
00241 { AST_CAUSE_RECOVERY_ON_TIMER_EXPIRE, "RECOVERY_ON_TIMER_EXPIRE", "Recover on timer expiry" },
00242 { AST_CAUSE_MANDATORY_IE_LENGTH_ERROR, "MANDATORY_IE_LENGTH_ERROR", "Mandatory IE length error" },
00243 { AST_CAUSE_PROTOCOL_ERROR, "PROTOCOL_ERROR", "Protocol error, unspecified" },
00244 { AST_CAUSE_INTERWORKING, "INTERWORKING", "Interworking, unspecified" },
00245 };
00246
00247 struct ast_variable *ast_channeltype_list(void)
00248 {
00249 struct chanlist *cl;
00250 struct ast_variable *var = NULL, *prev = NULL;
00251
00252 AST_RWLIST_RDLOCK(&backends);
00253 AST_RWLIST_TRAVERSE(&backends, cl, list) {
00254 if (prev) {
00255 if ((prev->next = ast_variable_new(cl->tech->type, cl->tech->description, "")))
00256 prev = prev->next;
00257 } else {
00258 var = ast_variable_new(cl->tech->type, cl->tech->description, "");
00259 prev = var;
00260 }
00261 }
00262 AST_RWLIST_UNLOCK(&backends);
00263
00264 return var;
00265 }
00266
00267 static void channel_data_add_flags(struct ast_data *tree,
00268 struct ast_channel *chan)
00269 {
00270 ast_data_add_bool(tree, "DEFER_DTMF", ast_test_flag(chan, AST_FLAG_DEFER_DTMF));
00271 ast_data_add_bool(tree, "WRITE_INT", ast_test_flag(chan, AST_FLAG_WRITE_INT));
00272 ast_data_add_bool(tree, "BLOCKING", ast_test_flag(chan, AST_FLAG_BLOCKING));
00273 ast_data_add_bool(tree, "ZOMBIE", ast_test_flag(chan, AST_FLAG_ZOMBIE));
00274 ast_data_add_bool(tree, "EXCEPTION", ast_test_flag(chan, AST_FLAG_EXCEPTION));
00275 ast_data_add_bool(tree, "MOH", ast_test_flag(chan, AST_FLAG_MOH));
00276 ast_data_add_bool(tree, "SPYING", ast_test_flag(chan, AST_FLAG_SPYING));
00277 ast_data_add_bool(tree, "NBRIDGE", ast_test_flag(chan, AST_FLAG_NBRIDGE));
00278 ast_data_add_bool(tree, "IN_AUTOLOOP", ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP));
00279 ast_data_add_bool(tree, "OUTGOING", ast_test_flag(chan, AST_FLAG_OUTGOING));
00280 ast_data_add_bool(tree, "IN_DTMF", ast_test_flag(chan, AST_FLAG_IN_DTMF));
00281 ast_data_add_bool(tree, "EMULATE_DTMF", ast_test_flag(chan, AST_FLAG_EMULATE_DTMF));
00282 ast_data_add_bool(tree, "END_DTMF_ONLY", ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY));
00283 ast_data_add_bool(tree, "ANSWERED_ELSEWHERE", ast_test_flag(chan, AST_FLAG_ANSWERED_ELSEWHERE));
00284 ast_data_add_bool(tree, "MASQ_NOSTREAM", ast_test_flag(chan, AST_FLAG_MASQ_NOSTREAM));
00285 ast_data_add_bool(tree, "BRIDGE_HANGUP_RUN", ast_test_flag(chan, AST_FLAG_BRIDGE_HANGUP_RUN));
00286 ast_data_add_bool(tree, "BRIDGE_HANGUP_DONT", ast_test_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT));
00287 ast_data_add_bool(tree, "DISABLE_WORKAROUNDS", ast_test_flag(chan, AST_FLAG_DISABLE_WORKAROUNDS));
00288 }
00289
00290 #if defined(KEEP_TILL_CHANNEL_PARTY_NUMBER_INFO_NEEDED)
00291 static const char *party_number_ton2str(int ton)
00292 {
00293 #if defined(HAVE_PRI)
00294 switch ((ton >> 4) & 0x07) {
00295 case PRI_TON_INTERNATIONAL:
00296 return "International";
00297 case PRI_TON_NATIONAL:
00298 return "National";
00299 case PRI_TON_NET_SPECIFIC:
00300 return "Network Specific";
00301 case PRI_TON_SUBSCRIBER:
00302 return "Subscriber";
00303 case PRI_TON_ABBREVIATED:
00304 return "Abbreviated";
00305 case PRI_TON_RESERVED:
00306 return "Reserved";
00307 case PRI_TON_UNKNOWN:
00308 default:
00309 break;
00310 }
00311 #endif
00312 return "Unknown";
00313 }
00314 #endif
00315
00316 #if defined(KEEP_TILL_CHANNEL_PARTY_NUMBER_INFO_NEEDED)
00317 static const char *party_number_plan2str(int plan)
00318 {
00319 #if defined(HAVE_PRI)
00320 switch (plan & 0x0F) {
00321 default:
00322 case PRI_NPI_UNKNOWN:
00323 break;
00324 case PRI_NPI_E163_E164:
00325 return "Public (E.163/E.164)";
00326 case PRI_NPI_X121:
00327 return "Data (X.121)";
00328 case PRI_NPI_F69:
00329 return "Telex (F.69)";
00330 case PRI_NPI_NATIONAL:
00331 return "National Standard";
00332 case PRI_NPI_PRIVATE:
00333 return "Private";
00334 case PRI_NPI_RESERVED:
00335 return "Reserved";
00336 }
00337 #endif
00338 return "Unknown";
00339 }
00340 #endif
00341
00342 int ast_channel_data_add_structure(struct ast_data *tree,
00343 struct ast_channel *chan, int add_bridged)
00344 {
00345 struct ast_channel *bc;
00346 struct ast_data *data_bridged;
00347 struct ast_data *data_cdr;
00348 struct ast_data *data_flags;
00349 struct ast_data *data_zones;
00350 struct ast_data *enum_node;
00351 struct ast_data *data_softhangup;
00352 #if 0
00353 struct ast_data *data_callerid;
00354 char value_str[100];
00355 #endif
00356
00357 if (!tree) {
00358 return -1;
00359 }
00360
00361 ast_data_add_structure(ast_channel, tree, chan);
00362
00363 if (add_bridged) {
00364 bc = ast_bridged_channel(chan);
00365 if (bc) {
00366 data_bridged = ast_data_add_node(tree, "bridged");
00367 if (!data_bridged) {
00368 return -1;
00369 }
00370 ast_channel_data_add_structure(data_bridged, bc, 0);
00371 }
00372 }
00373
00374 ast_data_add_codecs(tree, "oldwriteformat", chan->oldwriteformat);
00375 ast_data_add_codecs(tree, "nativeformats", chan->nativeformats);
00376 ast_data_add_codecs(tree, "readformat", chan->readformat);
00377 ast_data_add_codecs(tree, "writeformat", chan->writeformat);
00378 ast_data_add_codecs(tree, "rawreadformat", chan->rawreadformat);
00379 ast_data_add_codecs(tree, "rawwriteformat", chan->rawwriteformat);
00380
00381
00382 enum_node = ast_data_add_node(tree, "state");
00383 if (!enum_node) {
00384 return -1;
00385 }
00386 ast_data_add_str(enum_node, "text", ast_state2str(chan->_state));
00387 ast_data_add_int(enum_node, "value", chan->_state);
00388
00389
00390 enum_node = ast_data_add_node(tree, "hangupcause");
00391 if (!enum_node) {
00392 return -1;
00393 }
00394 ast_data_add_str(enum_node, "text", ast_cause2str(chan->hangupcause));
00395 ast_data_add_int(enum_node, "value", chan->hangupcause);
00396
00397
00398 enum_node = ast_data_add_node(tree, "amaflags");
00399 if (!enum_node) {
00400 return -1;
00401 }
00402 ast_data_add_str(enum_node, "text", ast_cdr_flags2str(chan->amaflags));
00403 ast_data_add_int(enum_node, "value", chan->amaflags);
00404
00405
00406 enum_node = ast_data_add_node(tree, "transfercapability");
00407 if (!enum_node) {
00408 return -1;
00409 }
00410 ast_data_add_str(enum_node, "text", ast_transfercapability2str(chan->transfercapability));
00411 ast_data_add_int(enum_node, "value", chan->transfercapability);
00412
00413
00414 data_softhangup = ast_data_add_node(tree, "softhangup");
00415 if (!data_softhangup) {
00416 return -1;
00417 }
00418 ast_data_add_bool(data_softhangup, "dev", chan->_softhangup & AST_SOFTHANGUP_DEV);
00419 ast_data_add_bool(data_softhangup, "asyncgoto", chan->_softhangup & AST_SOFTHANGUP_ASYNCGOTO);
00420 ast_data_add_bool(data_softhangup, "shutdown", chan->_softhangup & AST_SOFTHANGUP_SHUTDOWN);
00421 ast_data_add_bool(data_softhangup, "timeout", chan->_softhangup & AST_SOFTHANGUP_TIMEOUT);
00422 ast_data_add_bool(data_softhangup, "appunload", chan->_softhangup & AST_SOFTHANGUP_APPUNLOAD);
00423 ast_data_add_bool(data_softhangup, "explicit", chan->_softhangup & AST_SOFTHANGUP_EXPLICIT);
00424 ast_data_add_bool(data_softhangup, "unbridge", chan->_softhangup & AST_SOFTHANGUP_UNBRIDGE);
00425
00426
00427 data_flags = ast_data_add_node(tree, "flags");
00428 if (!data_flags) {
00429 return -1;
00430 }
00431 channel_data_add_flags(data_flags, chan);
00432
00433 ast_data_add_uint(tree, "timetohangup", chan->whentohangup.tv_sec);
00434
00435 #if 0
00436
00437 data_callerid = ast_data_add_node(tree, "callerid");
00438 if (!data_callerid) {
00439 return -1;
00440 }
00441 ast_data_add_structure(ast_callerid, data_callerid, &(chan->cid));
00442
00443 enum_node = ast_data_add_node(data_callerid, "cid_ton");
00444 if (!enum_node) {
00445 return -1;
00446 }
00447 ast_data_add_int(enum_node, "value", chan->cid.cid_ton);
00448 snprintf(value_str, sizeof(value_str), "TON: %s/Plan: %s",
00449 party_number_ton2str(chan->cid.cid_ton),
00450 party_number_plan2str(chan->cid.cid_ton));
00451 ast_data_add_str(enum_node, "text", value_str);
00452 #endif
00453
00454
00455 if (chan->zone) {
00456 data_zones = ast_data_add_node(tree, "zone");
00457 if (!data_zones) {
00458 return -1;
00459 }
00460 ast_tone_zone_data_add_structure(data_zones, chan->zone);
00461 }
00462
00463
00464 data_cdr = ast_data_add_node(tree, "cdr");
00465 if (!data_cdr) {
00466 return -1;
00467 }
00468
00469 ast_cdr_data_add_structure(data_cdr, chan->cdr, 1);
00470
00471 return 0;
00472 }
00473
00474 int ast_channel_data_cmp_structure(const struct ast_data_search *tree,
00475 struct ast_channel *chan, const char *structure_name)
00476 {
00477 return ast_data_search_cmp_structure(tree, ast_channel, chan, structure_name);
00478 }
00479
00480
00481 static char *handle_cli_core_show_channeltypes(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
00482 {
00483 #define FORMAT "%-10.10s %-40.40s %-12.12s %-12.12s %-12.12s\n"
00484 struct chanlist *cl;
00485 int count_chan = 0;
00486
00487 switch (cmd) {
00488 case CLI_INIT:
00489 e->command = "core show channeltypes";
00490 e->usage =
00491 "Usage: core show channeltypes\n"
00492 " Lists available channel types registered in your\n"
00493 " Asterisk server.\n";
00494 return NULL;
00495 case CLI_GENERATE:
00496 return NULL;
00497 }
00498
00499 if (a->argc != 3)
00500 return CLI_SHOWUSAGE;
00501
00502 ast_cli(a->fd, FORMAT, "Type", "Description", "Devicestate", "Indications", "Transfer");
00503 ast_cli(a->fd, FORMAT, "----------", "-----------", "-----------", "-----------", "--------");
00504
00505 AST_RWLIST_RDLOCK(&backends);
00506 AST_RWLIST_TRAVERSE(&backends, cl, list) {
00507 ast_cli(a->fd, FORMAT, cl->tech->type, cl->tech->description,
00508 (cl->tech->devicestate) ? "yes" : "no",
00509 (cl->tech->indicate) ? "yes" : "no",
00510 (cl->tech->transfer) ? "yes" : "no");
00511 count_chan++;
00512 }
00513 AST_RWLIST_UNLOCK(&backends);
00514
00515 ast_cli(a->fd, "----------\n%d channel drivers registered.\n", count_chan);
00516
00517 return CLI_SUCCESS;
00518
00519 #undef FORMAT
00520 }
00521
00522 static char *complete_channeltypes(struct ast_cli_args *a)
00523 {
00524 struct chanlist *cl;
00525 int which = 0;
00526 int wordlen;
00527 char *ret = NULL;
00528
00529 if (a->pos != 3)
00530 return NULL;
00531
00532 wordlen = strlen(a->word);
00533
00534 AST_RWLIST_RDLOCK(&backends);
00535 AST_RWLIST_TRAVERSE(&backends, cl, list) {
00536 if (!strncasecmp(a->word, cl->tech->type, wordlen) && ++which > a->n) {
00537 ret = ast_strdup(cl->tech->type);
00538 break;
00539 }
00540 }
00541 AST_RWLIST_UNLOCK(&backends);
00542
00543 return ret;
00544 }
00545
00546
00547 static char *handle_cli_core_show_channeltype(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
00548 {
00549 struct chanlist *cl = NULL;
00550 char buf[512];
00551
00552 switch (cmd) {
00553 case CLI_INIT:
00554 e->command = "core show channeltype";
00555 e->usage =
00556 "Usage: core show channeltype <name>\n"
00557 " Show details about the specified channel type, <name>.\n";
00558 return NULL;
00559 case CLI_GENERATE:
00560 return complete_channeltypes(a);
00561 }
00562
00563 if (a->argc != 4)
00564 return CLI_SHOWUSAGE;
00565
00566 AST_RWLIST_RDLOCK(&backends);
00567
00568 AST_RWLIST_TRAVERSE(&backends, cl, list) {
00569 if (!strncasecmp(cl->tech->type, a->argv[3], strlen(cl->tech->type)))
00570 break;
00571 }
00572
00573
00574 if (!cl) {
00575 ast_cli(a->fd, "\n%s is not a registered channel driver.\n", a->argv[3]);
00576 AST_RWLIST_UNLOCK(&backends);
00577 return CLI_FAILURE;
00578 }
00579
00580 ast_cli(a->fd,
00581 "-- Info about channel driver: %s --\n"
00582 " Device State: %s\n"
00583 " Indication: %s\n"
00584 " Transfer : %s\n"
00585 " Capabilities: %s\n"
00586 " Digit Begin: %s\n"
00587 " Digit End: %s\n"
00588 " Send HTML : %s\n"
00589 " Image Support: %s\n"
00590 " Text Support: %s\n",
00591 cl->tech->type,
00592 (cl->tech->devicestate) ? "yes" : "no",
00593 (cl->tech->indicate) ? "yes" : "no",
00594 (cl->tech->transfer) ? "yes" : "no",
00595 ast_getformatname_multiple(buf, sizeof(buf), (cl->tech->capabilities) ? cl->tech->capabilities : -1),
00596 (cl->tech->send_digit_begin) ? "yes" : "no",
00597 (cl->tech->send_digit_end) ? "yes" : "no",
00598 (cl->tech->send_html) ? "yes" : "no",
00599 (cl->tech->send_image) ? "yes" : "no",
00600 (cl->tech->send_text) ? "yes" : "no"
00601
00602 );
00603
00604 AST_RWLIST_UNLOCK(&backends);
00605
00606 return CLI_SUCCESS;
00607 }
00608
00609 static struct ast_cli_entry cli_channel[] = {
00610 AST_CLI_DEFINE(handle_cli_core_show_channeltypes, "List available channel types"),
00611 AST_CLI_DEFINE(handle_cli_core_show_channeltype, "Give more details on that channel type")
00612 };
00613
00614 static struct ast_frame *kill_read(struct ast_channel *chan)
00615 {
00616
00617 return NULL;
00618 }
00619
00620 static struct ast_frame *kill_exception(struct ast_channel *chan)
00621 {
00622
00623 return NULL;
00624 }
00625
00626 static int kill_write(struct ast_channel *chan, struct ast_frame *frame)
00627 {
00628
00629 return -1;
00630 }
00631
00632 static int kill_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
00633 {
00634
00635 return 0;
00636 }
00637
00638 static int kill_hangup(struct ast_channel *chan)
00639 {
00640 chan->tech_pvt = NULL;
00641 return 0;
00642 }
00643
00644
00645
00646
00647
00648
00649
00650
00651
00652
00653 const struct ast_channel_tech ast_kill_tech = {
00654 .type = "Kill",
00655 .description = "Kill channel (should not see this)",
00656 .capabilities = -1,
00657 .read = kill_read,
00658 .exception = kill_exception,
00659 .write = kill_write,
00660 .fixup = kill_fixup,
00661 .hangup = kill_hangup,
00662 };
00663
00664 #ifdef CHANNEL_TRACE
00665
00666 static void ast_chan_trace_destroy_cb(void *data)
00667 {
00668 struct ast_chan_trace *trace;
00669 struct ast_chan_trace_data *traced = data;
00670 while ((trace = AST_LIST_REMOVE_HEAD(&traced->trace, entry))) {
00671 ast_free(trace);
00672 }
00673 ast_free(traced);
00674 }
00675
00676
00677 static const struct ast_datastore_info ast_chan_trace_datastore_info = {
00678 .type = "ChanTrace",
00679 .destroy = ast_chan_trace_destroy_cb
00680 };
00681
00682
00683 int ast_channel_trace_serialize(struct ast_channel *chan, struct ast_str **buf)
00684 {
00685 int total = 0;
00686 struct ast_chan_trace *trace;
00687 struct ast_chan_trace_data *traced;
00688 struct ast_datastore *store;
00689
00690 ast_channel_lock(chan);
00691 store = ast_channel_datastore_find(chan, &ast_chan_trace_datastore_info, NULL);
00692 if (!store) {
00693 ast_channel_unlock(chan);
00694 return total;
00695 }
00696 traced = store->data;
00697 ast_str_reset(*buf);
00698 AST_LIST_TRAVERSE(&traced->trace, trace, entry) {
00699 if (ast_str_append(buf, 0, "[%d] => %s, %s, %d\n", total, trace->context, trace->exten, trace->priority) < 0) {
00700 ast_log(LOG_ERROR, "Data Buffer Size Exceeded!\n");
00701 total = -1;
00702 break;
00703 }
00704 total++;
00705 }
00706 ast_channel_unlock(chan);
00707 return total;
00708 }
00709
00710
00711 int ast_channel_trace_is_enabled(struct ast_channel *chan)
00712 {
00713 struct ast_datastore *store = ast_channel_datastore_find(chan, &ast_chan_trace_datastore_info, NULL);
00714 if (!store)
00715 return 0;
00716 return ((struct ast_chan_trace_data *)store->data)->enabled;
00717 }
00718
00719
00720 static int ast_channel_trace_data_update(struct ast_channel *chan, struct ast_chan_trace_data *traced)
00721 {
00722 struct ast_chan_trace *trace;
00723 if (!traced->enabled)
00724 return 0;
00725
00726
00727 if ((!AST_LIST_EMPTY(&traced->trace) && strcasecmp(AST_LIST_FIRST(&traced->trace)->context, chan->context)) ||
00728 (AST_LIST_EMPTY(&traced->trace))) {
00729
00730 if (AST_LIST_EMPTY(&traced->trace))
00731 ast_log(LOG_DEBUG, "Setting initial trace context to %s\n", chan->context);
00732 else
00733 ast_log(LOG_DEBUG, "Changing trace context from %s to %s\n", AST_LIST_FIRST(&traced->trace)->context, chan->context);
00734
00735 trace = ast_malloc(sizeof(*trace));
00736 if (!trace)
00737 return -1;
00738
00739 ast_copy_string(trace->context, chan->context, sizeof(trace->context));
00740 ast_copy_string(trace->exten, chan->exten, sizeof(trace->exten));
00741 trace->priority = chan->priority;
00742 AST_LIST_INSERT_HEAD(&traced->trace, trace, entry);
00743 }
00744 return 0;
00745 }
00746
00747
00748 int ast_channel_trace_update(struct ast_channel *chan)
00749 {
00750 struct ast_datastore *store = ast_channel_datastore_find(chan, &ast_chan_trace_datastore_info, NULL);
00751 if (!store)
00752 return 0;
00753 return ast_channel_trace_data_update(chan, store->data);
00754 }
00755
00756
00757 int ast_channel_trace_enable(struct ast_channel *chan)
00758 {
00759 struct ast_datastore *store = ast_channel_datastore_find(chan, &ast_chan_trace_datastore_info, NULL);
00760 struct ast_chan_trace_data *traced;
00761 if (!store) {
00762 store = ast_datastore_alloc(&ast_chan_trace_datastore_info, "ChanTrace");
00763 if (!store)
00764 return -1;
00765 traced = ast_calloc(1, sizeof(*traced));
00766 if (!traced) {
00767 ast_datastore_free(store);
00768 return -1;
00769 }
00770 store->data = traced;
00771 AST_LIST_HEAD_INIT_NOLOCK(&traced->trace);
00772 ast_channel_datastore_add(chan, store);
00773 }
00774 ((struct ast_chan_trace_data *)store->data)->enabled = 1;
00775 ast_channel_trace_data_update(chan, store->data);
00776 return 0;
00777 }
00778
00779
00780 int ast_channel_trace_disable(struct ast_channel *chan)
00781 {
00782 struct ast_datastore *store = ast_channel_datastore_find(chan, &ast_chan_trace_datastore_info, NULL);
00783 if (!store)
00784 return 0;
00785 ((struct ast_chan_trace_data *)store->data)->enabled = 0;
00786 return 0;
00787 }
00788 #endif
00789
00790
00791 int ast_check_hangup(struct ast_channel *chan)
00792 {
00793 if (chan->_softhangup)
00794 return 1;
00795 if (ast_tvzero(chan->whentohangup))
00796 return 0;
00797 if (ast_tvdiff_ms(chan->whentohangup, ast_tvnow()) > 0)
00798 return 0;
00799 ast_debug(4, "Hangup time has come: %" PRIi64 "\n", ast_tvdiff_ms(chan->whentohangup, ast_tvnow()));
00800 chan->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
00801 return 1;
00802 }
00803
00804 int ast_check_hangup_locked(struct ast_channel *chan)
00805 {
00806 int res;
00807 ast_channel_lock(chan);
00808 res = ast_check_hangup(chan);
00809 ast_channel_unlock(chan);
00810 return res;
00811 }
00812
00813 static int ast_channel_softhangup_cb(void *obj, void *arg, int flags)
00814 {
00815 struct ast_channel *chan = obj;
00816
00817 ast_softhangup(chan, AST_SOFTHANGUP_SHUTDOWN);
00818
00819 return 0;
00820 }
00821
00822 void ast_begin_shutdown(int hangup)
00823 {
00824 shutting_down = 1;
00825
00826 if (hangup) {
00827 ao2_callback(channels, OBJ_NODATA | OBJ_MULTIPLE, ast_channel_softhangup_cb, NULL);
00828 }
00829 }
00830
00831
00832 int ast_active_channels(void)
00833 {
00834 return channels ? ao2_container_count(channels) : 0;
00835 }
00836
00837
00838 void ast_cancel_shutdown(void)
00839 {
00840 shutting_down = 0;
00841 }
00842
00843
00844 int ast_shutting_down(void)
00845 {
00846 return shutting_down;
00847 }
00848
00849
00850 void ast_channel_setwhentohangup_tv(struct ast_channel *chan, struct timeval offset)
00851 {
00852 chan->whentohangup = ast_tvzero(offset) ? offset : ast_tvadd(offset, ast_tvnow());
00853 ast_queue_frame(chan, &ast_null_frame);
00854 return;
00855 }
00856
00857 void ast_channel_setwhentohangup(struct ast_channel *chan, time_t offset)
00858 {
00859 struct timeval when = { offset, };
00860 ast_channel_setwhentohangup_tv(chan, when);
00861 }
00862
00863
00864 int ast_channel_cmpwhentohangup_tv(struct ast_channel *chan, struct timeval offset)
00865 {
00866 struct timeval whentohangup;
00867
00868 if (ast_tvzero(chan->whentohangup))
00869 return ast_tvzero(offset) ? 0 : -1;
00870
00871 if (ast_tvzero(offset))
00872 return 1;
00873
00874 whentohangup = ast_tvadd(offset, ast_tvnow());
00875
00876 return ast_tvdiff_ms(whentohangup, chan->whentohangup);
00877 }
00878
00879 int ast_channel_cmpwhentohangup(struct ast_channel *chan, time_t offset)
00880 {
00881 struct timeval when = { offset, };
00882 return ast_channel_cmpwhentohangup_tv(chan, when);
00883 }
00884
00885
00886 int ast_channel_register(const struct ast_channel_tech *tech)
00887 {
00888 struct chanlist *chan;
00889
00890 AST_RWLIST_WRLOCK(&backends);
00891
00892 AST_RWLIST_TRAVERSE(&backends, chan, list) {
00893 if (!strcasecmp(tech->type, chan->tech->type)) {
00894 ast_log(LOG_WARNING, "Already have a handler for type '%s'\n", tech->type);
00895 AST_RWLIST_UNLOCK(&backends);
00896 return -1;
00897 }
00898 }
00899
00900 if (!(chan = ast_calloc(1, sizeof(*chan)))) {
00901 AST_RWLIST_UNLOCK(&backends);
00902 return -1;
00903 }
00904 chan->tech = tech;
00905 AST_RWLIST_INSERT_HEAD(&backends, chan, list);
00906
00907 ast_debug(1, "Registered handler for '%s' (%s)\n", chan->tech->type, chan->tech->description);
00908
00909 ast_verb(2, "Registered channel type '%s' (%s)\n", chan->tech->type, chan->tech->description);
00910
00911 AST_RWLIST_UNLOCK(&backends);
00912
00913 return 0;
00914 }
00915
00916
00917 void ast_channel_unregister(const struct ast_channel_tech *tech)
00918 {
00919 struct chanlist *chan;
00920
00921 ast_debug(1, "Unregistering channel type '%s'\n", tech->type);
00922
00923 AST_RWLIST_WRLOCK(&backends);
00924
00925 AST_RWLIST_TRAVERSE_SAFE_BEGIN(&backends, chan, list) {
00926 if (chan->tech == tech) {
00927 AST_LIST_REMOVE_CURRENT(list);
00928 ast_free(chan);
00929 ast_verb(2, "Unregistered channel type '%s'\n", tech->type);
00930 break;
00931 }
00932 }
00933 AST_LIST_TRAVERSE_SAFE_END;
00934
00935 AST_RWLIST_UNLOCK(&backends);
00936 }
00937
00938
00939 const struct ast_channel_tech *ast_get_channel_tech(const char *name)
00940 {
00941 struct chanlist *chanls;
00942 const struct ast_channel_tech *ret = NULL;
00943
00944 AST_RWLIST_RDLOCK(&backends);
00945
00946 AST_RWLIST_TRAVERSE(&backends, chanls, list) {
00947 if (!strcasecmp(name, chanls->tech->type)) {
00948 ret = chanls->tech;
00949 break;
00950 }
00951 }
00952
00953 AST_RWLIST_UNLOCK(&backends);
00954
00955 return ret;
00956 }
00957
00958
00959 const char *ast_cause2str(int cause)
00960 {
00961 int x;
00962
00963 for (x = 0; x < ARRAY_LEN(causes); x++) {
00964 if (causes[x].cause == cause)
00965 return causes[x].desc;
00966 }
00967
00968 return "Unknown";
00969 }
00970
00971
00972 int ast_str2cause(const char *name)
00973 {
00974 int x;
00975
00976 for (x = 0; x < ARRAY_LEN(causes); x++)
00977 if (!strncasecmp(causes[x].name, name, strlen(causes[x].name)))
00978 return causes[x].cause;
00979
00980 return -1;
00981 }
00982
00983
00984
00985
00986 const char *ast_state2str(enum ast_channel_state state)
00987 {
00988 char *buf;
00989
00990 switch (state) {
00991 case AST_STATE_DOWN:
00992 return "Down";
00993 case AST_STATE_RESERVED:
00994 return "Rsrvd";
00995 case AST_STATE_OFFHOOK:
00996 return "OffHook";
00997 case AST_STATE_DIALING:
00998 return "Dialing";
00999 case AST_STATE_RING:
01000 return "Ring";
01001 case AST_STATE_RINGING:
01002 return "Ringing";
01003 case AST_STATE_UP:
01004 return "Up";
01005 case AST_STATE_BUSY:
01006 return "Busy";
01007 case AST_STATE_DIALING_OFFHOOK:
01008 return "Dialing Offhook";
01009 case AST_STATE_PRERING:
01010 return "Pre-ring";
01011 default:
01012 if (!(buf = ast_threadstorage_get(&state2str_threadbuf, STATE2STR_BUFSIZE)))
01013 return "Unknown";
01014 snprintf(buf, STATE2STR_BUFSIZE, "Unknown (%d)", state);
01015 return buf;
01016 }
01017 }
01018
01019
01020 char *ast_transfercapability2str(int transfercapability)
01021 {
01022 switch (transfercapability) {
01023 case AST_TRANS_CAP_SPEECH:
01024 return "SPEECH";
01025 case AST_TRANS_CAP_DIGITAL:
01026 return "DIGITAL";
01027 case AST_TRANS_CAP_RESTRICTED_DIGITAL:
01028 return "RESTRICTED_DIGITAL";
01029 case AST_TRANS_CAP_3_1K_AUDIO:
01030 return "3K1AUDIO";
01031 case AST_TRANS_CAP_DIGITAL_W_TONES:
01032 return "DIGITAL_W_TONES";
01033 case AST_TRANS_CAP_VIDEO:
01034 return "VIDEO";
01035 default:
01036 return "UNKNOWN";
01037 }
01038 }
01039
01040
01041 format_t ast_best_codec(format_t fmts)
01042 {
01043
01044
01045 int x;
01046 static const format_t prefs[] =
01047 {
01048
01049 AST_FORMAT_ULAW,
01050
01051 AST_FORMAT_ALAW,
01052 AST_FORMAT_G719,
01053 AST_FORMAT_SIREN14,
01054 AST_FORMAT_SIREN7,
01055 AST_FORMAT_TESTLAW,
01056
01057 AST_FORMAT_G722,
01058
01059 AST_FORMAT_SLINEAR16,
01060 AST_FORMAT_SLINEAR,
01061
01062 AST_FORMAT_G726,
01063
01064 AST_FORMAT_G726_AAL2,
01065
01066 AST_FORMAT_ADPCM,
01067
01068
01069 AST_FORMAT_GSM,
01070
01071 AST_FORMAT_ILBC,
01072
01073 AST_FORMAT_SPEEX16,
01074 AST_FORMAT_SPEEX,
01075
01076
01077 AST_FORMAT_LPC10,
01078
01079 AST_FORMAT_G729A,
01080
01081 AST_FORMAT_G723_1,
01082 };
01083 char buf[512];
01084
01085
01086 fmts &= AST_FORMAT_AUDIO_MASK;
01087
01088
01089 for (x = 0; x < ARRAY_LEN(prefs); x++) {
01090 if (fmts & prefs[x])
01091 return prefs[x];
01092 }
01093
01094 ast_log(LOG_WARNING, "Don't know any of %s formats\n", ast_getformatname_multiple(buf, sizeof(buf), fmts));
01095
01096 return 0;
01097 }
01098
01099 static const struct ast_channel_tech null_tech = {
01100 .type = "NULL",
01101 .description = "Null channel (should not see this)",
01102 };
01103
01104 static void ast_channel_destructor(void *obj);
01105 static void ast_dummy_channel_destructor(void *obj);
01106
01107
01108 static struct ast_channel * attribute_malloc __attribute__((format(printf, 13, 0)))
01109 __ast_channel_alloc_ap(int needqueue, int state, const char *cid_num, const char *cid_name,
01110 const char *acctcode, const char *exten, const char *context,
01111 const char *linkedid, const int amaflag, const char *file, int line,
01112 const char *function, const char *name_fmt, va_list ap1, va_list ap2)
01113 {
01114 struct ast_channel *tmp;
01115 int x;
01116 int flags;
01117 struct varshead *headp;
01118 char *tech = "", *tech2 = NULL;
01119
01120
01121 if (shutting_down) {
01122 ast_log(LOG_WARNING, "Channel allocation failed: Refusing due to active shutdown\n");
01123 return NULL;
01124 }
01125
01126 #if defined(REF_DEBUG)
01127 tmp = __ao2_alloc_debug(sizeof(*tmp), ast_channel_destructor, "", file, line,
01128 function, 1);
01129 #elif defined(__AST_DEBUG_MALLOC)
01130 tmp = __ao2_alloc_debug(sizeof(*tmp), ast_channel_destructor, "", file, line,
01131 function, 0);
01132 #else
01133 tmp = ao2_alloc(sizeof(*tmp), ast_channel_destructor);
01134 #endif
01135 if (!tmp) {
01136
01137 return NULL;
01138 }
01139
01140
01141
01142
01143
01144 tmp->timingfd = -1;
01145 for (x = 0; x < ARRAY_LEN(tmp->alertpipe); ++x) {
01146 tmp->alertpipe[x] = -1;
01147 }
01148 for (x = 0; x < ARRAY_LEN(tmp->fds); ++x) {
01149 tmp->fds[x] = -1;
01150 }
01151 #ifdef HAVE_EPOLL
01152 tmp->epfd = epoll_create(25);
01153 #endif
01154
01155 if (!(tmp->sched = sched_context_create())) {
01156 ast_log(LOG_WARNING, "Channel allocation failed: Unable to create schedule context\n");
01157 return ast_channel_unref(tmp);
01158 }
01159
01160 ast_party_dialed_init(&tmp->dialed);
01161 ast_party_caller_init(&tmp->caller);
01162 ast_party_connected_line_init(&tmp->connected);
01163 ast_party_redirecting_init(&tmp->redirecting);
01164
01165 if (cid_name) {
01166 tmp->caller.id.name.valid = 1;
01167 tmp->caller.id.name.str = ast_strdup(cid_name);
01168 if (!tmp->caller.id.name.str) {
01169 return ast_channel_unref(tmp);
01170 }
01171 }
01172 if (cid_num) {
01173 tmp->caller.id.number.valid = 1;
01174 tmp->caller.id.number.str = ast_strdup(cid_num);
01175 if (!tmp->caller.id.number.str) {
01176 return ast_channel_unref(tmp);
01177 }
01178 }
01179
01180 if ((tmp->timer = ast_timer_open())) {
01181 if (strcmp(ast_timer_get_name(tmp->timer), "timerfd")) {
01182 needqueue = 0;
01183 }
01184 tmp->timingfd = ast_timer_fd(tmp->timer);
01185 }
01186
01187 if (needqueue) {
01188 if (pipe(tmp->alertpipe)) {
01189 ast_log(LOG_WARNING, "Channel allocation failed: Can't create alert pipe! Try increasing max file descriptors with ulimit -n\n");
01190 return ast_channel_unref(tmp);
01191 } else {
01192 flags = fcntl(tmp->alertpipe[0], F_GETFL);
01193 if (fcntl(tmp->alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
01194 ast_log(LOG_WARNING, "Channel allocation failed: Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
01195 return ast_channel_unref(tmp);
01196 }
01197 flags = fcntl(tmp->alertpipe[1], F_GETFL);
01198 if (fcntl(tmp->alertpipe[1], F_SETFL, flags | O_NONBLOCK) < 0) {
01199 ast_log(LOG_WARNING, "Channel allocation failed: Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
01200 return ast_channel_unref(tmp);
01201 }
01202 }
01203 }
01204
01205
01206
01207
01208
01209
01210
01211
01212 if ((ast_string_field_init(tmp, 128))) {
01213 return ast_channel_unref(tmp);
01214 }
01215
01216
01217 ast_channel_set_fd(tmp, AST_ALERT_FD, tmp->alertpipe[0]);
01218
01219 ast_channel_set_fd(tmp, AST_TIMING_FD, tmp->timingfd);
01220
01221
01222 tmp->_state = state;
01223
01224 tmp->streamid = -1;
01225
01226 tmp->fin = global_fin;
01227 tmp->fout = global_fout;
01228
01229 if (ast_strlen_zero(ast_config_AST_SYSTEM_NAME)) {
01230 ast_string_field_build(tmp, uniqueid, "%li.%d", (long) time(NULL),
01231 ast_atomic_fetchadd_int(&uniqueint, 1));
01232 } else {
01233 ast_string_field_build(tmp, uniqueid, "%s-%li.%d", ast_config_AST_SYSTEM_NAME,
01234 (long) time(NULL), ast_atomic_fetchadd_int(&uniqueint, 1));
01235 }
01236
01237 if (!ast_strlen_zero(linkedid)) {
01238 ast_string_field_set(tmp, linkedid, linkedid);
01239 } else {
01240 ast_string_field_set(tmp, linkedid, tmp->uniqueid);
01241 }
01242
01243 if (!ast_strlen_zero(name_fmt)) {
01244 char *slash, *slash2;
01245
01246
01247
01248
01249
01250
01251
01252 ast_string_field_build_va(tmp, name, name_fmt, ap1, ap2);
01253 tech = ast_strdupa(tmp->name);
01254 if ((slash = strchr(tech, '/'))) {
01255 if ((slash2 = strchr(slash + 1, '/'))) {
01256 tech2 = slash + 1;
01257 *slash2 = '\0';
01258 }
01259 *slash = '\0';
01260 }
01261 } else {
01262
01263
01264
01265
01266 ast_string_field_set(tmp, name, "-**Unknown**");
01267 }
01268
01269
01270
01271
01272 if (amaflag)
01273 tmp->amaflags = amaflag;
01274 else
01275 tmp->amaflags = ast_default_amaflags;
01276
01277 if (!ast_strlen_zero(acctcode))
01278 ast_string_field_set(tmp, accountcode, acctcode);
01279 else
01280 ast_string_field_set(tmp, accountcode, ast_default_accountcode);
01281
01282 if (!ast_strlen_zero(context))
01283 ast_copy_string(tmp->context, context, sizeof(tmp->context));
01284 else
01285 strcpy(tmp->context, "default");
01286
01287 if (!ast_strlen_zero(exten))
01288 ast_copy_string(tmp->exten, exten, sizeof(tmp->exten));
01289 else
01290 strcpy(tmp->exten, "s");
01291
01292 tmp->priority = 1;
01293
01294 tmp->cdr = ast_cdr_alloc();
01295 ast_cdr_init(tmp->cdr, tmp);
01296 ast_cdr_start(tmp->cdr);
01297
01298 ast_cel_report_event(tmp, AST_CEL_CHANNEL_START, NULL, NULL, NULL);
01299
01300 headp = &tmp->varshead;
01301 AST_LIST_HEAD_INIT_NOLOCK(headp);
01302
01303 AST_LIST_HEAD_INIT_NOLOCK(&tmp->datastores);
01304
01305 AST_LIST_HEAD_INIT_NOLOCK(&tmp->autochans);
01306
01307 ast_string_field_set(tmp, language, defaultlanguage);
01308
01309 tmp->tech = &null_tech;
01310
01311 ao2_link(channels, tmp);
01312
01313
01314
01315
01316
01317
01318
01319 if (ast_get_channel_tech(tech) || (tech2 && ast_get_channel_tech(tech2))) {
01320 ast_manager_event(tmp, EVENT_FLAG_CALL, "Newchannel",
01321 "Channel: %s\r\n"
01322 "ChannelState: %d\r\n"
01323 "ChannelStateDesc: %s\r\n"
01324 "CallerIDNum: %s\r\n"
01325 "CallerIDName: %s\r\n"
01326 "AccountCode: %s\r\n"
01327 "Exten: %s\r\n"
01328 "Context: %s\r\n"
01329 "Uniqueid: %s\r\n",
01330 tmp->name,
01331 state,
01332 ast_state2str(state),
01333 S_OR(cid_num, ""),
01334 S_OR(cid_name, ""),
01335 tmp->accountcode,
01336 S_OR(exten, ""),
01337 S_OR(context, ""),
01338 tmp->uniqueid);
01339 }
01340
01341 return tmp;
01342 }
01343
01344 struct ast_channel *__ast_channel_alloc(int needqueue, int state, const char *cid_num,
01345 const char *cid_name, const char *acctcode,
01346 const char *exten, const char *context,
01347 const char *linkedid, const int amaflag,
01348 const char *file, int line, const char *function,
01349 const char *name_fmt, ...)
01350 {
01351 va_list ap1, ap2;
01352 struct ast_channel *result;
01353
01354 va_start(ap1, name_fmt);
01355 va_start(ap2, name_fmt);
01356 result = __ast_channel_alloc_ap(needqueue, state, cid_num, cid_name, acctcode, exten, context,
01357 linkedid, amaflag, file, line, function, name_fmt, ap1, ap2);
01358 va_end(ap1);
01359 va_end(ap2);
01360
01361 return result;
01362 }
01363
01364
01365
01366 #if defined(REF_DEBUG) || defined(__AST_DEBUG_MALLOC)
01367 struct ast_channel *__ast_dummy_channel_alloc(const char *file, int line, const char *function)
01368 #else
01369 struct ast_channel *ast_dummy_channel_alloc(void)
01370 #endif
01371 {
01372 struct ast_channel *tmp;
01373 struct varshead *headp;
01374
01375 #if defined(REF_DEBUG)
01376 tmp = __ao2_alloc_debug(sizeof(*tmp), ast_dummy_channel_destructor, "dummy channel",
01377 file, line, function, 1);
01378 #elif defined(__AST_DEBUG_MALLOC)
01379 tmp = __ao2_alloc_debug(sizeof(*tmp), ast_dummy_channel_destructor, "dummy channel",
01380 file, line, function, 0);
01381 #else
01382 tmp = ao2_alloc(sizeof(*tmp), ast_dummy_channel_destructor);
01383 #endif
01384 if (!tmp) {
01385
01386 return NULL;
01387 }
01388
01389 if ((ast_string_field_init(tmp, 128))) {
01390 return ast_channel_unref(tmp);
01391 }
01392
01393 headp = &tmp->varshead;
01394 AST_LIST_HEAD_INIT_NOLOCK(headp);
01395
01396 return tmp;
01397 }
01398
01399 static int __ast_queue_frame(struct ast_channel *chan, struct ast_frame *fin, int head, struct ast_frame *after)
01400 {
01401 struct ast_frame *f;
01402 struct ast_frame *cur;
01403 unsigned int new_frames = 0;
01404 unsigned int new_voice_frames = 0;
01405 unsigned int queued_frames = 0;
01406 unsigned int queued_voice_frames = 0;
01407 AST_LIST_HEAD_NOLOCK(, ast_frame) frames;
01408
01409 ast_channel_lock(chan);
01410
01411
01412
01413
01414
01415 cur = AST_LIST_LAST(&chan->readq);
01416 if (cur && cur->frametype == AST_FRAME_CONTROL && !head && (!after || after == cur)) {
01417 switch (cur->subclass.integer) {
01418 case AST_CONTROL_END_OF_Q:
01419 if (fin->frametype == AST_FRAME_CONTROL
01420 && fin->subclass.integer == AST_CONTROL_HANGUP) {
01421
01422
01423
01424
01425 AST_LIST_REMOVE(&chan->readq, cur, frame_list);
01426 ast_frfree(cur);
01427
01428
01429
01430
01431
01432
01433 after = NULL;
01434 break;
01435 }
01436
01437 case AST_CONTROL_HANGUP:
01438
01439 ast_channel_unlock(chan);
01440 return 0;
01441 default:
01442 break;
01443 }
01444 }
01445
01446
01447 AST_LIST_HEAD_INIT_NOLOCK(&frames);
01448 for (cur = fin; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
01449 if (!(f = ast_frdup(cur))) {
01450 if (AST_LIST_FIRST(&frames)) {
01451 ast_frfree(AST_LIST_FIRST(&frames));
01452 }
01453 ast_channel_unlock(chan);
01454 return -1;
01455 }
01456
01457 AST_LIST_INSERT_TAIL(&frames, f, frame_list);
01458 new_frames++;
01459 if (f->frametype == AST_FRAME_VOICE) {
01460 new_voice_frames++;
01461 }
01462 }
01463
01464
01465 AST_LIST_TRAVERSE(&chan->readq, cur, frame_list) {
01466 queued_frames++;
01467 if (cur->frametype == AST_FRAME_VOICE) {
01468 queued_voice_frames++;
01469 }
01470 }
01471
01472 if ((queued_frames + new_frames > 128 || queued_voice_frames + new_voice_frames > 96)) {
01473 int count = 0;
01474 ast_log(LOG_WARNING, "Exceptionally long %squeue length queuing to %s\n", queued_frames + new_frames > 128 ? "" : "voice ", chan->name);
01475 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->readq, cur, frame_list) {
01476
01477 if (!AST_LIST_NEXT(cur, frame_list)) {
01478 break;
01479 } else if (cur->frametype == AST_FRAME_VOICE || cur->frametype == AST_FRAME_VIDEO || cur->frametype == AST_FRAME_NULL) {
01480 if (++count > 64) {
01481 break;
01482 }
01483 AST_LIST_REMOVE_CURRENT(frame_list);
01484 ast_frfree(cur);
01485 }
01486 }
01487 AST_LIST_TRAVERSE_SAFE_END;
01488 }
01489
01490 if (after) {
01491 AST_LIST_INSERT_LIST_AFTER(&chan->readq, &frames, after, frame_list);
01492 } else {
01493 if (head) {
01494 AST_LIST_APPEND_LIST(&frames, &chan->readq, frame_list);
01495 AST_LIST_HEAD_INIT_NOLOCK(&chan->readq);
01496 }
01497 AST_LIST_APPEND_LIST(&chan->readq, &frames, frame_list);
01498 }
01499
01500 if (chan->alertpipe[1] > -1) {
01501 int blah[new_frames];
01502
01503 memset(blah, 1, sizeof(blah));
01504 if (write(chan->alertpipe[1], &blah, sizeof(blah)) != (sizeof(blah))) {
01505 ast_log(LOG_WARNING, "Unable to write to alert pipe on %s (qlen = %d): %s!\n",
01506 chan->name, queued_frames, strerror(errno));
01507 }
01508 } else if (chan->timingfd > -1) {
01509 ast_timer_enable_continuous(chan->timer);
01510 } else if (ast_test_flag(chan, AST_FLAG_BLOCKING)) {
01511 pthread_kill(chan->blocker, SIGURG);
01512 }
01513
01514 ast_channel_unlock(chan);
01515
01516 return 0;
01517 }
01518
01519 int ast_queue_frame(struct ast_channel *chan, struct ast_frame *fin)
01520 {
01521 return __ast_queue_frame(chan, fin, 0, NULL);
01522 }
01523
01524 int ast_queue_frame_head(struct ast_channel *chan, struct ast_frame *fin)
01525 {
01526 return __ast_queue_frame(chan, fin, 1, NULL);
01527 }
01528
01529
01530 int ast_queue_hangup(struct ast_channel *chan)
01531 {
01532 struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = AST_CONTROL_HANGUP };
01533
01534 if (!ast_channel_trylock(chan)) {
01535 chan->_softhangup |= AST_SOFTHANGUP_DEV;
01536 ast_channel_unlock(chan);
01537 }
01538 return ast_queue_frame(chan, &f);
01539 }
01540
01541
01542 int ast_queue_hangup_with_cause(struct ast_channel *chan, int cause)
01543 {
01544 struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = AST_CONTROL_HANGUP };
01545
01546 if (cause >= 0)
01547 f.data.uint32 = cause;
01548
01549
01550 if (!ast_channel_trylock(chan)) {
01551 chan->_softhangup |= AST_SOFTHANGUP_DEV;
01552 if (cause < 0)
01553 f.data.uint32 = chan->hangupcause;
01554
01555 ast_channel_unlock(chan);
01556 }
01557
01558 return ast_queue_frame(chan, &f);
01559 }
01560
01561
01562 int ast_queue_control(struct ast_channel *chan, enum ast_control_frame_type control)
01563 {
01564 struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = control };
01565 return ast_queue_frame(chan, &f);
01566 }
01567
01568
01569 int ast_queue_control_data(struct ast_channel *chan, enum ast_control_frame_type control,
01570 const void *data, size_t datalen)
01571 {
01572 struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = control, .data.ptr = (void *) data, .datalen = datalen };
01573 return ast_queue_frame(chan, &f);
01574 }
01575
01576
01577 int ast_channel_defer_dtmf(struct ast_channel *chan)
01578 {
01579 int pre = 0;
01580
01581 if (chan) {
01582 pre = ast_test_flag(chan, AST_FLAG_DEFER_DTMF);
01583 ast_set_flag(chan, AST_FLAG_DEFER_DTMF);
01584 }
01585 return pre;
01586 }
01587
01588
01589 void ast_channel_undefer_dtmf(struct ast_channel *chan)
01590 {
01591 if (chan)
01592 ast_clear_flag(chan, AST_FLAG_DEFER_DTMF);
01593 }
01594
01595 struct ast_channel *ast_channel_callback(ao2_callback_data_fn *cb_fn, void *arg,
01596 void *data, int ao2_flags)
01597 {
01598 return ao2_callback_data(channels, ao2_flags, cb_fn, arg, data);
01599 }
01600
01601 struct ast_channel_iterator {
01602
01603 struct ao2_iterator simple_iterator;
01604
01605
01606
01607 struct ao2_iterator *active_iterator;
01608 };
01609
01610 struct ast_channel_iterator *ast_channel_iterator_destroy(struct ast_channel_iterator *i)
01611 {
01612 ao2_iterator_destroy(i->active_iterator);
01613 ast_free(i);
01614
01615 return NULL;
01616 }
01617
01618 static struct ast_channel_iterator *channel_iterator_search(const char *name,
01619 size_t name_len, const char *exten,
01620 const char *context)
01621 {
01622 struct ast_channel_iterator *i;
01623 struct ast_channel tmp_chan = {
01624 .name = name,
01625
01626
01627
01628 .rings = name_len,
01629 };
01630
01631 if (!(i = ast_calloc(1, sizeof(*i)))) {
01632 return NULL;
01633 }
01634
01635 if (exten) {
01636 ast_copy_string(tmp_chan.exten, exten, sizeof(tmp_chan.exten));
01637 }
01638
01639 if (context) {
01640 ast_copy_string(tmp_chan.context, context, sizeof(tmp_chan.context));
01641 }
01642
01643 if (!(i->active_iterator = ao2_find(channels, &tmp_chan,
01644 OBJ_MULTIPLE | ((!ast_strlen_zero(name) && (name_len == 0)) ? OBJ_POINTER : 0)))) {
01645 ast_free(i);
01646 return NULL;
01647 }
01648
01649 return i;
01650 }
01651
01652 struct ast_channel_iterator *ast_channel_iterator_by_exten_new(const char *exten, const char *context)
01653 {
01654 return channel_iterator_search(NULL, 0, exten, context);
01655 }
01656
01657 struct ast_channel_iterator *ast_channel_iterator_by_name_new(const char *name, size_t name_len)
01658 {
01659 return channel_iterator_search(name, name_len, NULL, NULL);
01660 }
01661
01662 struct ast_channel_iterator *ast_channel_iterator_all_new(void)
01663 {
01664 struct ast_channel_iterator *i;
01665
01666 if (!(i = ast_calloc(1, sizeof(*i)))) {
01667 return NULL;
01668 }
01669
01670 i->simple_iterator = ao2_iterator_init(channels, 0);
01671 i->active_iterator = &i->simple_iterator;
01672
01673 return i;
01674 }
01675
01676 struct ast_channel *ast_channel_iterator_next(struct ast_channel_iterator *i)
01677 {
01678 return ao2_iterator_next(i->active_iterator);
01679 }
01680
01681 static int ast_channel_cmp_cb(void *obj, void *arg, int flags)
01682 {
01683 struct ast_channel *chan = obj, *cmp_args = arg;
01684 size_t name_len;
01685 int ret = CMP_MATCH;
01686
01687
01688
01689
01690 name_len = cmp_args->rings;
01691
01692 ast_channel_lock(chan);
01693
01694 if (!ast_strlen_zero(cmp_args->name)) {
01695 if ((!name_len && strcasecmp(chan->name, cmp_args->name)) ||
01696 (name_len && strncasecmp(chan->name, cmp_args->name, name_len))) {
01697 ret = 0;
01698 }
01699 } else if (!ast_strlen_zero(cmp_args->exten)) {
01700 if (cmp_args->context && strcasecmp(chan->context, cmp_args->context) &&
01701 strcasecmp(chan->macrocontext, cmp_args->context)) {
01702 ret = 0;
01703 }
01704 if (ret && strcasecmp(chan->exten, cmp_args->exten) &&
01705 strcasecmp(chan->macroexten, cmp_args->exten)) {
01706 ret = 0;
01707 }
01708 } else if (!ast_strlen_zero(cmp_args->uniqueid)) {
01709 if ((!name_len && strcasecmp(chan->uniqueid, cmp_args->uniqueid)) ||
01710 (name_len && strncasecmp(chan->uniqueid, cmp_args->uniqueid, name_len))) {
01711 ret = 0;
01712 }
01713 } else {
01714 ret = 0;
01715 }
01716
01717 ast_channel_unlock(chan);
01718
01719 return ret;
01720 }
01721
01722 static struct ast_channel *ast_channel_get_full(const char *name, size_t name_len,
01723 const char *exten, const char *context)
01724 {
01725 struct ast_channel tmp_chan = {
01726 .name = name,
01727
01728
01729
01730 .rings = name_len,
01731 };
01732 struct ast_channel *chan;
01733
01734 if (exten) {
01735 ast_copy_string(tmp_chan.exten, exten, sizeof(tmp_chan.exten));
01736 }
01737
01738 if (context) {
01739 ast_copy_string(tmp_chan.context, context, sizeof(tmp_chan.context));
01740 }
01741
01742 if ((chan = ao2_find(channels, &tmp_chan,
01743 (!ast_strlen_zero(name) && (name_len == 0)) ? OBJ_POINTER : 0))) {
01744 return chan;
01745 }
01746
01747 if (!name) {
01748 return NULL;
01749 }
01750
01751
01752
01753
01754 {
01755 struct ast_channel tmp_chan2 = {
01756 .uniqueid = name,
01757 .rings = name_len,
01758 };
01759
01760 return ao2_find(channels, &tmp_chan2, 0);
01761 }
01762 }
01763
01764 struct ast_channel *ast_channel_get_by_name(const char *name)
01765 {
01766 return ast_channel_get_full(name, 0, NULL, NULL);
01767 }
01768
01769 struct ast_channel *ast_channel_get_by_name_prefix(const char *name, size_t name_len)
01770 {
01771 return ast_channel_get_full(name, name_len, NULL, NULL);
01772 }
01773
01774 struct ast_channel *ast_channel_get_by_exten(const char *exten, const char *context)
01775 {
01776 return ast_channel_get_full(NULL, 0, exten, context);
01777 }
01778
01779 int ast_is_deferrable_frame(const struct ast_frame *frame)
01780 {
01781
01782
01783
01784
01785 switch (frame->frametype) {
01786 case AST_FRAME_CONTROL:
01787 case AST_FRAME_TEXT:
01788 case AST_FRAME_IMAGE:
01789 case AST_FRAME_HTML:
01790 return 1;
01791
01792 case AST_FRAME_DTMF_END:
01793 case AST_FRAME_DTMF_BEGIN:
01794 case AST_FRAME_VOICE:
01795 case AST_FRAME_VIDEO:
01796 case AST_FRAME_NULL:
01797 case AST_FRAME_IAX:
01798 case AST_FRAME_CNG:
01799 case AST_FRAME_MODEM:
01800 return 0;
01801 }
01802 return 0;
01803 }
01804
01805
01806 int ast_safe_sleep_conditional(struct ast_channel *chan, int ms, int (*cond)(void*), void *data)
01807 {
01808 struct ast_frame *f;
01809 struct ast_silence_generator *silgen = NULL;
01810 int res = 0;
01811 AST_LIST_HEAD_NOLOCK(, ast_frame) deferred_frames;
01812
01813 AST_LIST_HEAD_INIT_NOLOCK(&deferred_frames);
01814
01815
01816 if (ast_opt_transmit_silence && !chan->generatordata) {
01817 silgen = ast_channel_start_silence_generator(chan);
01818 }
01819
01820 while (ms > 0) {
01821 struct ast_frame *dup_f = NULL;
01822 if (cond && ((*cond)(data) == 0)) {
01823 break;
01824 }
01825 ms = ast_waitfor(chan, ms);
01826 if (ms < 0) {
01827 res = -1;
01828 break;
01829 }
01830 if (ms > 0) {
01831 f = ast_read(chan);
01832 if (!f) {
01833 res = -1;
01834 break;
01835 }
01836
01837 if (!ast_is_deferrable_frame(f)) {
01838 ast_frfree(f);
01839 continue;
01840 }
01841
01842 if ((dup_f = ast_frisolate(f))) {
01843 if (dup_f != f) {
01844 ast_frfree(f);
01845 }
01846 AST_LIST_INSERT_HEAD(&deferred_frames, dup_f, frame_list);
01847 }
01848 }
01849 }
01850
01851
01852 if (silgen) {
01853 ast_channel_stop_silence_generator(chan, silgen);
01854 }
01855
01856
01857
01858
01859
01860 ast_channel_lock(chan);
01861 while ((f = AST_LIST_REMOVE_HEAD(&deferred_frames, frame_list))) {
01862 if (!res) {
01863 ast_queue_frame_head(chan, f);
01864 }
01865 ast_frfree(f);
01866 }
01867 ast_channel_unlock(chan);
01868
01869 return res;
01870 }
01871
01872
01873 int ast_safe_sleep(struct ast_channel *chan, int ms)
01874 {
01875 return ast_safe_sleep_conditional(chan, ms, NULL, NULL);
01876 }
01877
01878 struct ast_channel *ast_channel_release(struct ast_channel *chan)
01879 {
01880
01881 ao2_unlink(channels, chan);
01882 return ast_channel_unref(chan);
01883 }
01884
01885 void ast_party_name_init(struct ast_party_name *init)
01886 {
01887 init->str = NULL;
01888 init->char_set = AST_PARTY_CHAR_SET_ISO8859_1;
01889 init->presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
01890 init->valid = 0;
01891 }
01892
01893 void ast_party_name_copy(struct ast_party_name *dest, const struct ast_party_name *src)
01894 {
01895 if (dest == src) {
01896
01897 return;
01898 }
01899
01900 ast_free(dest->str);
01901 dest->str = ast_strdup(src->str);
01902 dest->char_set = src->char_set;
01903 dest->presentation = src->presentation;
01904 dest->valid = src->valid;
01905 }
01906
01907 void ast_party_name_set_init(struct ast_party_name *init, const struct ast_party_name *guide)
01908 {
01909 init->str = NULL;
01910 init->char_set = guide->char_set;
01911 init->presentation = guide->presentation;
01912 init->valid = guide->valid;
01913 }
01914
01915 void ast_party_name_set(struct ast_party_name *dest, const struct ast_party_name *src)
01916 {
01917 if (dest == src) {
01918
01919 return;
01920 }
01921
01922 if (src->str && src->str != dest->str) {
01923 ast_free(dest->str);
01924 dest->str = ast_strdup(src->str);
01925 }
01926
01927 dest->char_set = src->char_set;
01928 dest->presentation = src->presentation;
01929 dest->valid = src->valid;
01930 }
01931
01932 void ast_party_name_free(struct ast_party_name *doomed)
01933 {
01934 ast_free(doomed->str);
01935 doomed->str = NULL;
01936 }
01937
01938 void ast_party_number_init(struct ast_party_number *init)
01939 {
01940 init->str = NULL;
01941 init->plan = 0;
01942 init->presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
01943 init->valid = 0;
01944 }
01945
01946 void ast_party_number_copy(struct ast_party_number *dest, const struct ast_party_number *src)
01947 {
01948 if (dest == src) {
01949
01950 return;
01951 }
01952
01953 ast_free(dest->str);
01954 dest->str = ast_strdup(src->str);
01955 dest->plan = src->plan;
01956 dest->presentation = src->presentation;
01957 dest->valid = src->valid;
01958 }
01959
01960 void ast_party_number_set_init(struct ast_party_number *init, const struct ast_party_number *guide)
01961 {
01962 init->str = NULL;
01963 init->plan = guide->plan;
01964 init->presentation = guide->presentation;
01965 init->valid = guide->valid;
01966 }
01967
01968 void ast_party_number_set(struct ast_party_number *dest, const struct ast_party_number *src)
01969 {
01970 if (dest == src) {
01971
01972 return;
01973 }
01974
01975 if (src->str && src->str != dest->str) {
01976 ast_free(dest->str);
01977 dest->str = ast_strdup(src->str);
01978 }
01979
01980 dest->plan = src->plan;
01981 dest->presentation = src->presentation;
01982 dest->valid = src->valid;
01983 }
01984
01985 void ast_party_number_free(struct ast_party_number *doomed)
01986 {
01987 ast_free(doomed->str);
01988 doomed->str = NULL;
01989 }
01990
01991 void ast_party_subaddress_init(struct ast_party_subaddress *init)
01992 {
01993 init->str = NULL;
01994 init->type = 0;
01995 init->odd_even_indicator = 0;
01996 init->valid = 0;
01997 }
01998
01999 void ast_party_subaddress_copy(struct ast_party_subaddress *dest, const struct ast_party_subaddress *src)
02000 {
02001 if (dest == src) {
02002
02003 return;
02004 }
02005
02006 ast_free(dest->str);
02007 dest->str = ast_strdup(src->str);
02008 dest->type = src->type;
02009 dest->odd_even_indicator = src->odd_even_indicator;
02010 dest->valid = src->valid;
02011 }
02012
02013 void ast_party_subaddress_set_init(struct ast_party_subaddress *init, const struct ast_party_subaddress *guide)
02014 {
02015 init->str = NULL;
02016 init->type = guide->type;
02017 init->odd_even_indicator = guide->odd_even_indicator;
02018 init->valid = guide->valid;
02019 }
02020
02021 void ast_party_subaddress_set(struct ast_party_subaddress *dest, const struct ast_party_subaddress *src)
02022 {
02023 if (dest == src) {
02024
02025 return;
02026 }
02027
02028 if (src->str && src->str != dest->str) {
02029 ast_free(dest->str);
02030 dest->str = ast_strdup(src->str);
02031 }
02032
02033 dest->type = src->type;
02034 dest->odd_even_indicator = src->odd_even_indicator;
02035 dest->valid = src->valid;
02036 }
02037
02038 void ast_party_subaddress_free(struct ast_party_subaddress *doomed)
02039 {
02040 ast_free(doomed->str);
02041 doomed->str = NULL;
02042 }
02043
02044 void ast_party_id_init(struct ast_party_id *init)
02045 {
02046 ast_party_name_init(&init->name);
02047 ast_party_number_init(&init->number);
02048 ast_party_subaddress_init(&init->subaddress);
02049 init->tag = NULL;
02050 }
02051
02052 void ast_party_id_copy(struct ast_party_id *dest, const struct ast_party_id *src)
02053 {
02054 if (dest == src) {
02055
02056 return;
02057 }
02058
02059 ast_party_name_copy(&dest->name, &src->name);
02060 ast_party_number_copy(&dest->number, &src->number);
02061 ast_party_subaddress_copy(&dest->subaddress, &src->subaddress);
02062
02063 ast_free(dest->tag);
02064 dest->tag = ast_strdup(src->tag);
02065 }
02066
02067 void ast_party_id_set_init(struct ast_party_id *init, const struct ast_party_id *guide)
02068 {
02069 ast_party_name_set_init(&init->name, &guide->name);
02070 ast_party_number_set_init(&init->number, &guide->number);
02071 ast_party_subaddress_set_init(&init->subaddress, &guide->subaddress);
02072 init->tag = NULL;
02073 }
02074
02075 void ast_party_id_set(struct ast_party_id *dest, const struct ast_party_id *src, const struct ast_set_party_id *update)
02076 {
02077 if (dest == src) {
02078
02079 return;
02080 }
02081
02082 if (!update || update->name) {
02083 ast_party_name_set(&dest->name, &src->name);
02084 }
02085 if (!update || update->number) {
02086 ast_party_number_set(&dest->number, &src->number);
02087 }
02088 if (!update || update->subaddress) {
02089 ast_party_subaddress_set(&dest->subaddress, &src->subaddress);
02090 }
02091
02092 if (src->tag && src->tag != dest->tag) {
02093 ast_free(dest->tag);
02094 dest->tag = ast_strdup(src->tag);
02095 }
02096 }
02097
02098 void ast_party_id_free(struct ast_party_id *doomed)
02099 {
02100 ast_party_name_free(&doomed->name);
02101 ast_party_number_free(&doomed->number);
02102 ast_party_subaddress_free(&doomed->subaddress);
02103
02104 ast_free(doomed->tag);
02105 doomed->tag = NULL;
02106 }
02107
02108 int ast_party_id_presentation(const struct ast_party_id *id)
02109 {
02110 int number_priority;
02111 int number_value;
02112 int number_screening;
02113 int name_priority;
02114 int name_value;
02115
02116
02117 if (!id->name.valid) {
02118 name_value = AST_PRES_UNAVAILABLE;
02119 name_priority = 3;
02120 } else {
02121 name_value = id->name.presentation & AST_PRES_RESTRICTION;
02122 switch (name_value) {
02123 case AST_PRES_RESTRICTED:
02124 name_priority = 0;
02125 break;
02126 case AST_PRES_ALLOWED:
02127 name_priority = 1;
02128 break;
02129 case AST_PRES_UNAVAILABLE:
02130 name_priority = 2;
02131 break;
02132 default:
02133 name_value = AST_PRES_UNAVAILABLE;
02134 name_priority = 3;
02135 break;
02136 }
02137 }
02138
02139
02140 if (!id->number.valid) {
02141 number_screening = AST_PRES_USER_NUMBER_UNSCREENED;
02142 number_value = AST_PRES_UNAVAILABLE;
02143 number_priority = 3;
02144 } else {
02145 number_screening = id->number.presentation & AST_PRES_NUMBER_TYPE;
02146 number_value = id->number.presentation & AST_PRES_RESTRICTION;
02147 switch (number_value) {
02148 case AST_PRES_RESTRICTED:
02149 number_priority = 0;
02150 break;
02151 case AST_PRES_ALLOWED:
02152 number_priority = 1;
02153 break;
02154 case AST_PRES_UNAVAILABLE:
02155 number_priority = 2;
02156 break;
02157 default:
02158 number_screening = AST_PRES_USER_NUMBER_UNSCREENED;
02159 number_value = AST_PRES_UNAVAILABLE;
02160 number_priority = 3;
02161 break;
02162 }
02163 }
02164
02165
02166 if (name_priority < number_priority) {
02167 number_value = name_value;
02168 }
02169
02170 return number_value | number_screening;
02171 }
02172
02173 void ast_party_dialed_init(struct ast_party_dialed *init)
02174 {
02175 init->number.str = NULL;
02176 init->number.plan = 0;
02177 ast_party_subaddress_init(&init->subaddress);
02178 init->transit_network_select = 0;
02179 }
02180
02181 void ast_party_dialed_copy(struct ast_party_dialed *dest, const struct ast_party_dialed *src)
02182 {
02183 if (dest == src) {
02184
02185 return;
02186 }
02187
02188 ast_free(dest->number.str);
02189 dest->number.str = ast_strdup(src->number.str);
02190 dest->number.plan = src->number.plan;
02191 ast_party_subaddress_copy(&dest->subaddress, &src->subaddress);
02192 dest->transit_network_select = src->transit_network_select;
02193 }
02194
02195 void ast_party_dialed_set_init(struct ast_party_dialed *init, const struct ast_party_dialed *guide)
02196 {
02197 init->number.str = NULL;
02198 init->number.plan = guide->number.plan;
02199 ast_party_subaddress_set_init(&init->subaddress, &guide->subaddress);
02200 init->transit_network_select = guide->transit_network_select;
02201 }
02202
02203 void ast_party_dialed_set(struct ast_party_dialed *dest, const struct ast_party_dialed *src)
02204 {
02205 if (src->number.str && src->number.str != dest->number.str) {
02206 ast_free(dest->number.str);
02207 dest->number.str = ast_strdup(src->number.str);
02208 }
02209 dest->number.plan = src->number.plan;
02210
02211 ast_party_subaddress_set(&dest->subaddress, &src->subaddress);
02212
02213 dest->transit_network_select = src->transit_network_select;
02214 }
02215
02216 void ast_party_dialed_free(struct ast_party_dialed *doomed)
02217 {
02218 ast_free(doomed->number.str);
02219 doomed->number.str = NULL;
02220 ast_party_subaddress_free(&doomed->subaddress);
02221 }
02222
02223 void ast_party_caller_init(struct ast_party_caller *init)
02224 {
02225 ast_party_id_init(&init->id);
02226 ast_party_id_init(&init->ani);
02227 init->ani2 = 0;
02228 }
02229
02230 void ast_party_caller_copy(struct ast_party_caller *dest, const struct ast_party_caller *src)
02231 {
02232 if (dest == src) {
02233
02234 return;
02235 }
02236
02237 ast_party_id_copy(&dest->id, &src->id);
02238 ast_party_id_copy(&dest->ani, &src->ani);
02239 dest->ani2 = src->ani2;
02240 }
02241
02242 void ast_party_caller_set_init(struct ast_party_caller *init, const struct ast_party_caller *guide)
02243 {
02244 ast_party_id_set_init(&init->id, &guide->id);
02245 ast_party_id_set_init(&init->ani, &guide->ani);
02246 init->ani2 = guide->ani2;
02247 }
02248
02249 void ast_party_caller_set(struct ast_party_caller *dest, const struct ast_party_caller *src, const struct ast_set_party_caller *update)
02250 {
02251 ast_party_id_set(&dest->id, &src->id, update ? &update->id : NULL);
02252 ast_party_id_set(&dest->ani, &src->ani, update ? &update->ani : NULL);
02253 dest->ani2 = src->ani2;
02254 }
02255
02256 void ast_party_caller_free(struct ast_party_caller *doomed)
02257 {
02258 ast_party_id_free(&doomed->id);
02259 ast_party_id_free(&doomed->ani);
02260 }
02261
02262 void ast_party_connected_line_init(struct ast_party_connected_line *init)
02263 {
02264 ast_party_id_init(&init->id);
02265 ast_party_id_init(&init->ani);
02266 init->ani2 = 0;
02267 init->source = AST_CONNECTED_LINE_UPDATE_SOURCE_UNKNOWN;
02268 }
02269
02270 void ast_party_connected_line_copy(struct ast_party_connected_line *dest, const struct ast_party_connected_line *src)
02271 {
02272 if (dest == src) {
02273
02274 return;
02275 }
02276
02277 ast_party_id_copy(&dest->id, &src->id);
02278 ast_party_id_copy(&dest->ani, &src->ani);
02279 dest->ani2 = src->ani2;
02280 dest->source = src->source;
02281 }
02282
02283 void ast_party_connected_line_set_init(struct ast_party_connected_line *init, const struct ast_party_connected_line *guide)
02284 {
02285 ast_party_id_set_init(&init->id, &guide->id);
02286 ast_party_id_set_init(&init->ani, &guide->ani);
02287 init->ani2 = guide->ani2;
02288 init->source = guide->source;
02289 }
02290
02291 void ast_party_connected_line_set(struct ast_party_connected_line *dest, const struct ast_party_connected_line *src, const struct ast_set_party_connected_line *update)
02292 {
02293 ast_party_id_set(&dest->id, &src->id, update ? &update->id : NULL);
02294 ast_party_id_set(&dest->ani, &src->ani, update ? &update->ani : NULL);
02295 dest->ani2 = src->ani2;
02296 dest->source = src->source;
02297 }
02298
02299 void ast_party_connected_line_collect_caller(struct ast_party_connected_line *connected, struct ast_party_caller *caller)
02300 {
02301 connected->id = caller->id;
02302 connected->ani = caller->ani;
02303 connected->ani2 = caller->ani2;
02304 connected->source = AST_CONNECTED_LINE_UPDATE_SOURCE_UNKNOWN;
02305 }
02306
02307 void ast_party_connected_line_free(struct ast_party_connected_line *doomed)
02308 {
02309 ast_party_id_free(&doomed->id);
02310 ast_party_id_free(&doomed->ani);
02311 }
02312
02313 void ast_party_redirecting_init(struct ast_party_redirecting *init)
02314 {
02315 ast_party_id_init(&init->from);
02316 ast_party_id_init(&init->to);
02317 init->count = 0;
02318 init->reason = AST_REDIRECTING_REASON_UNKNOWN;
02319 }
02320
02321 void ast_party_redirecting_copy(struct ast_party_redirecting *dest, const struct ast_party_redirecting *src)
02322 {
02323 if (dest == src) {
02324
02325 return;
02326 }
02327
02328 ast_party_id_copy(&dest->from, &src->from);
02329 ast_party_id_copy(&dest->to, &src->to);
02330 dest->count = src->count;
02331 dest->reason = src->reason;
02332 }
02333
02334 void ast_party_redirecting_set_init(struct ast_party_redirecting *init, const struct ast_party_redirecting *guide)
02335 {
02336 ast_party_id_set_init(&init->from, &guide->from);
02337 ast_party_id_set_init(&init->to, &guide->to);
02338 init->count = guide->count;
02339 init->reason = guide->reason;
02340 }
02341
02342 void ast_party_redirecting_set(struct ast_party_redirecting *dest, const struct ast_party_redirecting *src, const struct ast_set_party_redirecting *update)
02343 {
02344 ast_party_id_set(&dest->from, &src->from, update ? &update->from : NULL);
02345 ast_party_id_set(&dest->to, &src->to, update ? &update->to : NULL);
02346 dest->reason = src->reason;
02347 dest->count = src->count;
02348 }
02349
02350 void ast_party_redirecting_free(struct ast_party_redirecting *doomed)
02351 {
02352 ast_party_id_free(&doomed->from);
02353 ast_party_id_free(&doomed->to);
02354 }
02355
02356
02357 static void ast_channel_destructor(void *obj)
02358 {
02359 struct ast_channel *chan = obj;
02360 int fd;
02361 #ifdef HAVE_EPOLL
02362 int i;
02363 #endif
02364 struct ast_var_t *vardata;
02365 struct ast_frame *f;
02366 struct varshead *headp;
02367 struct ast_datastore *datastore;
02368 char device_name[AST_CHANNEL_NAME];
02369
02370 if (chan->name) {
02371
02372 ast_cel_report_event(chan, AST_CEL_CHANNEL_END, NULL, NULL, NULL);
02373 ast_cel_check_retire_linkedid(chan);
02374 }
02375
02376
02377 ast_channel_lock(chan);
02378 while ((datastore = AST_LIST_REMOVE_HEAD(&chan->datastores, entry)))
02379
02380 ast_datastore_free(datastore);
02381 ast_channel_unlock(chan);
02382
02383
02384
02385 ast_channel_lock(chan);
02386 ast_channel_unlock(chan);
02387
02388 if (chan->tech_pvt) {
02389 ast_log(LOG_WARNING, "Channel '%s' may not have been hung up properly\n", chan->name);
02390 ast_free(chan->tech_pvt);
02391 }
02392
02393 if (chan->sched)
02394 sched_context_destroy(chan->sched);
02395
02396 if (chan->name) {
02397 char *dashptr;
02398
02399
02400 ast_copy_string(device_name, chan->name, sizeof(device_name));
02401 if ((dashptr = strrchr(device_name, '-'))) {
02402 *dashptr = '\0';
02403 }
02404 } else {
02405 device_name[0] = '\0';
02406 }
02407
02408
02409 if (chan->monitor)
02410 chan->monitor->stop( chan, 0 );
02411
02412
02413 if (chan->music_state)
02414 ast_moh_cleanup(chan);
02415
02416
02417 if (chan->readtrans)
02418 ast_translator_free_path(chan->readtrans);
02419 if (chan->writetrans)
02420 ast_translator_free_path(chan->writetrans);
02421 if (chan->pbx)
02422 ast_log(LOG_WARNING, "PBX may not have been terminated properly on '%s'\n", chan->name);
02423
02424 ast_party_dialed_free(&chan->dialed);
02425 ast_party_caller_free(&chan->caller);
02426 ast_party_connected_line_free(&chan->connected);
02427 ast_party_redirecting_free(&chan->redirecting);
02428
02429
02430 if ((fd = chan->alertpipe[0]) > -1)
02431 close(fd);
02432 if ((fd = chan->alertpipe[1]) > -1)
02433 close(fd);
02434 if (chan->timer) {
02435 ast_timer_close(chan->timer);
02436 }
02437 #ifdef HAVE_EPOLL
02438 for (i = 0; i < AST_MAX_FDS; i++) {
02439 if (chan->epfd_data[i])
02440 free(chan->epfd_data[i]);
02441 }
02442 close(chan->epfd);
02443 #endif
02444 while ((f = AST_LIST_REMOVE_HEAD(&chan->readq, frame_list)))
02445 ast_frfree(f);
02446
02447
02448
02449 headp = &chan->varshead;
02450 while ((vardata = AST_LIST_REMOVE_HEAD(headp, entries)))
02451 ast_var_delete(vardata);
02452
02453 ast_app_group_discard(chan);
02454
02455
02456 ast_jb_destroy(chan);
02457
02458 if (chan->cdr) {
02459 ast_cdr_discard(chan->cdr);
02460 chan->cdr = NULL;
02461 }
02462
02463 if (chan->zone) {
02464 chan->zone = ast_tone_zone_unref(chan->zone);
02465 }
02466
02467 ast_string_field_free_memory(chan);
02468
02469 if (device_name[0]) {
02470
02471
02472
02473
02474
02475
02476
02477 ast_devstate_changed_literal(AST_DEVICE_UNKNOWN, device_name);
02478 }
02479 }
02480
02481
02482 static void ast_dummy_channel_destructor(void *obj)
02483 {
02484 struct ast_channel *chan = obj;
02485 struct ast_var_t *vardata;
02486 struct varshead *headp;
02487
02488 headp = &chan->varshead;
02489
02490 ast_party_dialed_free(&chan->dialed);
02491 ast_party_caller_free(&chan->caller);
02492 ast_party_connected_line_free(&chan->connected);
02493 ast_party_redirecting_free(&chan->redirecting);
02494
02495
02496
02497 while ((vardata = AST_LIST_REMOVE_HEAD(headp, entries)))
02498 ast_var_delete(vardata);
02499
02500 if (chan->cdr) {
02501 ast_cdr_discard(chan->cdr);
02502 chan->cdr = NULL;
02503 }
02504
02505 ast_string_field_free_memory(chan);
02506 }
02507
02508 struct ast_datastore *ast_channel_datastore_alloc(const struct ast_datastore_info *info, const char *uid)
02509 {
02510 return ast_datastore_alloc(info, uid);
02511 }
02512
02513 int ast_channel_datastore_free(struct ast_datastore *datastore)
02514 {
02515 return ast_datastore_free(datastore);
02516 }
02517
02518 int ast_channel_datastore_inherit(struct ast_channel *from, struct ast_channel *to)
02519 {
02520 struct ast_datastore *datastore = NULL, *datastore2;
02521
02522 AST_LIST_TRAVERSE(&from->datastores, datastore, entry) {
02523 if (datastore->inheritance > 0) {
02524 datastore2 = ast_datastore_alloc(datastore->info, datastore->uid);
02525 if (datastore2) {
02526 datastore2->data = datastore->info->duplicate ? datastore->info->duplicate(datastore->data) : NULL;
02527 datastore2->inheritance = datastore->inheritance == DATASTORE_INHERIT_FOREVER ? DATASTORE_INHERIT_FOREVER : datastore->inheritance - 1;
02528 AST_LIST_INSERT_TAIL(&to->datastores, datastore2, entry);
02529 }
02530 }
02531 }
02532 return 0;
02533 }
02534
02535 int ast_channel_datastore_add(struct ast_channel *chan, struct ast_datastore *datastore)
02536 {
02537 int res = 0;
02538
02539 AST_LIST_INSERT_HEAD(&chan->datastores, datastore, entry);
02540
02541 return res;
02542 }
02543
02544 int ast_channel_datastore_remove(struct ast_channel *chan, struct ast_datastore *datastore)
02545 {
02546 return AST_LIST_REMOVE(&chan->datastores, datastore, entry) ? 0 : -1;
02547 }
02548
02549 struct ast_datastore *ast_channel_datastore_find(struct ast_channel *chan, const struct ast_datastore_info *info, const char *uid)
02550 {
02551 struct ast_datastore *datastore = NULL;
02552
02553 if (info == NULL)
02554 return NULL;
02555
02556 AST_LIST_TRAVERSE(&chan->datastores, datastore, entry) {
02557 if (datastore->info != info) {
02558 continue;
02559 }
02560
02561 if (uid == NULL) {
02562
02563 break;
02564 }
02565
02566 if ((datastore->uid != NULL) && !strcasecmp(uid, datastore->uid)) {
02567
02568 break;
02569 }
02570 }
02571
02572 return datastore;
02573 }
02574
02575
02576 void ast_channel_set_fd(struct ast_channel *chan, int which, int fd)
02577 {
02578 #ifdef HAVE_EPOLL
02579 struct epoll_event ev;
02580 struct ast_epoll_data *aed = NULL;
02581
02582 if (chan->fds[which] > -1) {
02583 epoll_ctl(chan->epfd, EPOLL_CTL_DEL, chan->fds[which], &ev);
02584 aed = chan->epfd_data[which];
02585 }
02586
02587
02588 if (fd > -1) {
02589 if (!aed && (!(aed = ast_calloc(1, sizeof(*aed)))))
02590 return;
02591
02592 chan->epfd_data[which] = aed;
02593 aed->chan = chan;
02594 aed->which = which;
02595
02596 ev.events = EPOLLIN | EPOLLPRI | EPOLLERR | EPOLLHUP;
02597 ev.data.ptr = aed;
02598 epoll_ctl(chan->epfd, EPOLL_CTL_ADD, fd, &ev);
02599 } else if (aed) {
02600
02601 free(aed);
02602 chan->epfd_data[which] = NULL;
02603 }
02604 #endif
02605 chan->fds[which] = fd;
02606 return;
02607 }
02608
02609
02610 void ast_poll_channel_add(struct ast_channel *chan0, struct ast_channel *chan1)
02611 {
02612 #ifdef HAVE_EPOLL
02613 struct epoll_event ev;
02614 int i = 0;
02615
02616 if (chan0->epfd == -1)
02617 return;
02618
02619
02620 for (i = 0; i < AST_MAX_FDS; i++) {
02621 if (chan1->fds[i] == -1)
02622 continue;
02623 ev.events = EPOLLIN | EPOLLPRI | EPOLLERR | EPOLLHUP;
02624 ev.data.ptr = chan1->epfd_data[i];
02625 epoll_ctl(chan0->epfd, EPOLL_CTL_ADD, chan1->fds[i], &ev);
02626 }
02627
02628 #endif
02629 return;
02630 }
02631
02632
02633 void ast_poll_channel_del(struct ast_channel *chan0, struct ast_channel *chan1)
02634 {
02635 #ifdef HAVE_EPOLL
02636 struct epoll_event ev;
02637 int i = 0;
02638
02639 if (chan0->epfd == -1)
02640 return;
02641
02642 for (i = 0; i < AST_MAX_FDS; i++) {
02643 if (chan1->fds[i] == -1)
02644 continue;
02645 epoll_ctl(chan0->epfd, EPOLL_CTL_DEL, chan1->fds[i], &ev);
02646 }
02647
02648 #endif
02649 return;
02650 }
02651
02652 void ast_channel_clear_softhangup(struct ast_channel *chan, int flag)
02653 {
02654 ast_channel_lock(chan);
02655
02656 chan->_softhangup &= ~flag;
02657
02658 if (!chan->_softhangup) {
02659 struct ast_frame *fr;
02660
02661
02662
02663
02664
02665
02666 fr = AST_LIST_LAST(&chan->readq);
02667 if (fr && fr->frametype == AST_FRAME_CONTROL &&
02668 fr->subclass.integer == AST_CONTROL_END_OF_Q) {
02669 AST_LIST_REMOVE(&chan->readq, fr, frame_list);
02670 ast_frfree(fr);
02671 }
02672 }
02673
02674 ast_channel_unlock(chan);
02675 }
02676
02677
02678 int ast_softhangup_nolock(struct ast_channel *chan, int cause)
02679 {
02680 ast_debug(1, "Soft-Hanging up channel '%s'\n", chan->name);
02681
02682 chan->_softhangup |= cause;
02683 ast_queue_frame(chan, &ast_null_frame);
02684
02685 if (ast_test_flag(chan, AST_FLAG_BLOCKING))
02686 pthread_kill(chan->blocker, SIGURG);
02687 return 0;
02688 }
02689
02690
02691 int ast_softhangup(struct ast_channel *chan, int cause)
02692 {
02693 int res;
02694
02695 ast_channel_lock(chan);
02696 res = ast_softhangup_nolock(chan, cause);
02697 ast_channel_unlock(chan);
02698
02699 return res;
02700 }
02701
02702 static void free_translation(struct ast_channel *clonechan)
02703 {
02704 if (clonechan->writetrans)
02705 ast_translator_free_path(clonechan->writetrans);
02706 if (clonechan->readtrans)
02707 ast_translator_free_path(clonechan->readtrans);
02708 clonechan->writetrans = NULL;
02709 clonechan->readtrans = NULL;
02710 clonechan->rawwriteformat = clonechan->nativeformats;
02711 clonechan->rawreadformat = clonechan->nativeformats;
02712 }
02713
02714 void ast_set_hangupsource(struct ast_channel *chan, const char *source, int force)
02715 {
02716 struct ast_channel *bridge;
02717
02718 ast_channel_lock(chan);
02719 if (force || ast_strlen_zero(chan->hangupsource)) {
02720 ast_string_field_set(chan, hangupsource, source);
02721 }
02722 bridge = ast_bridged_channel(chan);
02723 ast_channel_unlock(chan);
02724
02725 if (bridge && (force || ast_strlen_zero(bridge->hangupsource))) {
02726 ast_channel_lock(bridge);
02727 ast_string_field_set(chan, hangupsource, source);
02728 ast_channel_unlock(bridge);
02729 }
02730 }
02731
02732
02733 int ast_hangup(struct ast_channel *chan)
02734 {
02735 char extra_str[64];
02736
02737 ast_autoservice_stop(chan);
02738
02739 ao2_lock(channels);
02740 ast_channel_lock(chan);
02741
02742 if (chan->audiohooks) {
02743 ast_audiohook_detach_list(chan->audiohooks);
02744 chan->audiohooks = NULL;
02745 }
02746 ast_framehook_list_destroy(chan);
02747
02748
02749
02750
02751
02752
02753
02754
02755
02756 while (chan->masq) {
02757 ast_channel_unlock(chan);
02758 ao2_unlock(channels);
02759 if (ast_do_masquerade(chan)) {
02760 ast_log(LOG_WARNING, "Failed to perform masquerade\n");
02761
02762
02763 ao2_lock(channels);
02764 ast_channel_lock(chan);
02765 break;
02766 }
02767 ao2_lock(channels);
02768 ast_channel_lock(chan);
02769 }
02770
02771 if (chan->masqr) {
02772
02773
02774
02775
02776
02777 ast_set_flag(chan, AST_FLAG_ZOMBIE);
02778 ast_channel_unlock(chan);
02779 ao2_unlock(channels);
02780 return 0;
02781 }
02782
02783 ao2_unlink(channels, chan);
02784 ao2_unlock(channels);
02785
02786 free_translation(chan);
02787
02788 if (chan->stream) {
02789 ast_closestream(chan->stream);
02790 chan->stream = NULL;
02791 }
02792
02793 if (chan->vstream) {
02794 ast_closestream(chan->vstream);
02795 chan->vstream = NULL;
02796 }
02797 if (chan->sched) {
02798 sched_context_destroy(chan->sched);
02799 chan->sched = NULL;
02800 }
02801
02802 if (chan->generatordata) {
02803 if (chan->generator && chan->generator->release) {
02804 chan->generator->release(chan, chan->generatordata);
02805 }
02806 }
02807 chan->generatordata = NULL;
02808 chan->generator = NULL;
02809
02810 snprintf(extra_str, sizeof(extra_str), "%d,%s,%s", chan->hangupcause, chan->hangupsource, S_OR(pbx_builtin_getvar_helper(chan, "DIALSTATUS"), ""));
02811 ast_cel_report_event(chan, AST_CEL_HANGUP, NULL, extra_str, NULL);
02812
02813 if (ast_test_flag(chan, AST_FLAG_BLOCKING)) {
02814 ast_log(LOG_WARNING, "Hard hangup called by thread %ld on %s, while fd "
02815 "is blocked by thread %ld in procedure %s! Expect a failure\n",
02816 (long) pthread_self(), chan->name, (long)chan->blocker, chan->blockproc);
02817 ast_assert(ast_test_flag(chan, AST_FLAG_BLOCKING) == 0);
02818 }
02819 if (!ast_test_flag(chan, AST_FLAG_ZOMBIE)) {
02820 ast_debug(1, "Hanging up channel '%s'\n", chan->name);
02821
02822
02823
02824
02825
02826 ast_set_flag(chan, AST_FLAG_ZOMBIE);
02827 if (chan->tech->hangup) {
02828 chan->tech->hangup(chan);
02829 }
02830 } else {
02831 ast_debug(1, "Hanging up zombie '%s'\n", chan->name);
02832 }
02833
02834 ast_channel_unlock(chan);
02835
02836 ast_cc_offer(chan);
02837 ast_manager_event(chan, EVENT_FLAG_CALL, "Hangup",
02838 "Channel: %s\r\n"
02839 "Uniqueid: %s\r\n"
02840 "CallerIDNum: %s\r\n"
02841 "CallerIDName: %s\r\n"
02842 "ConnectedLineNum: %s\r\n"
02843 "ConnectedLineName: %s\r\n"
02844 "Cause: %d\r\n"
02845 "Cause-txt: %s\r\n",
02846 chan->name,
02847 chan->uniqueid,
02848 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, "<unknown>"),
02849 S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, "<unknown>"),
02850 S_COR(chan->connected.id.number.valid, chan->connected.id.number.str, "<unknown>"),
02851 S_COR(chan->connected.id.name.valid, chan->connected.id.name.str, "<unknown>"),
02852 chan->hangupcause,
02853 ast_cause2str(chan->hangupcause)
02854 );
02855
02856 if (chan->cdr && !ast_test_flag(chan->cdr, AST_CDR_FLAG_BRIDGED) &&
02857 !ast_test_flag(chan->cdr, AST_CDR_FLAG_POST_DISABLED) &&
02858 (chan->cdr->disposition != AST_CDR_NULL || ast_test_flag(chan->cdr, AST_CDR_FLAG_DIALED))) {
02859 ast_channel_lock(chan);
02860 ast_cdr_end(chan->cdr);
02861 ast_cdr_detach(chan->cdr);
02862 chan->cdr = NULL;
02863 ast_channel_unlock(chan);
02864 }
02865
02866 ast_channel_unref(chan);
02867
02868 return 0;
02869 }
02870
02871 int ast_raw_answer(struct ast_channel *chan, int cdr_answer)
02872 {
02873 int res = 0;
02874
02875 ast_channel_lock(chan);
02876
02877
02878 if (ast_test_flag(chan, AST_FLAG_OUTGOING)) {
02879 ast_channel_unlock(chan);
02880 return 0;
02881 }
02882
02883
02884 if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
02885 ast_channel_unlock(chan);
02886 return -1;
02887 }
02888
02889 ast_channel_unlock(chan);
02890
02891 switch (chan->_state) {
02892 case AST_STATE_RINGING:
02893 case AST_STATE_RING:
02894 ast_channel_lock(chan);
02895 if (chan->tech->answer) {
02896 res = chan->tech->answer(chan);
02897 }
02898 ast_setstate(chan, AST_STATE_UP);
02899 if (cdr_answer) {
02900 ast_cdr_answer(chan->cdr);
02901 }
02902 ast_cel_report_event(chan, AST_CEL_ANSWER, NULL, NULL, NULL);
02903 ast_channel_unlock(chan);
02904 break;
02905 case AST_STATE_UP:
02906 ast_cel_report_event(chan, AST_CEL_ANSWER, NULL, NULL, NULL);
02907
02908
02909
02910 if (cdr_answer) {
02911 ast_cdr_answer(chan->cdr);
02912 }
02913 break;
02914 default:
02915 break;
02916 }
02917
02918 ast_indicate(chan, -1);
02919
02920 return res;
02921 }
02922
02923 int __ast_answer(struct ast_channel *chan, unsigned int delay, int cdr_answer)
02924 {
02925 int res = 0;
02926 enum ast_channel_state old_state;
02927
02928 old_state = chan->_state;
02929 if ((res = ast_raw_answer(chan, cdr_answer))) {
02930 return res;
02931 }
02932
02933 switch (old_state) {
02934 case AST_STATE_RINGING:
02935 case AST_STATE_RING:
02936
02937
02938
02939 do {
02940 AST_LIST_HEAD_NOLOCK(, ast_frame) frames;
02941 struct ast_frame *cur, *new;
02942 int ms = MAX(delay, 500);
02943 unsigned int done = 0;
02944
02945 AST_LIST_HEAD_INIT_NOLOCK(&frames);
02946
02947 for (;;) {
02948 ms = ast_waitfor(chan, ms);
02949 if (ms < 0) {
02950 ast_log(LOG_WARNING, "Error condition occurred when polling channel %s for a voice frame: %s\n", chan->name, strerror(errno));
02951 res = -1;
02952 break;
02953 }
02954 if (ms == 0) {
02955 ast_debug(2, "Didn't receive a media frame from %s within %d ms of answering. Continuing anyway\n", chan->name, MAX(delay, 500));
02956 break;
02957 }
02958 cur = ast_read(chan);
02959 if (!cur || ((cur->frametype == AST_FRAME_CONTROL) &&
02960 (cur->subclass.integer == AST_CONTROL_HANGUP))) {
02961 if (cur) {
02962 ast_frfree(cur);
02963 }
02964 res = -1;
02965 ast_debug(2, "Hangup of channel %s detected in answer routine\n", chan->name);
02966 break;
02967 }
02968
02969 if ((new = ast_frisolate(cur)) != cur) {
02970 ast_frfree(cur);
02971 }
02972
02973 AST_LIST_INSERT_HEAD(&frames, new, frame_list);
02974
02975
02976
02977
02978
02979 if (delay) {
02980 continue;
02981 }
02982
02983 switch (new->frametype) {
02984
02985 case AST_FRAME_VOICE:
02986 case AST_FRAME_VIDEO:
02987 case AST_FRAME_TEXT:
02988 case AST_FRAME_DTMF_BEGIN:
02989 case AST_FRAME_DTMF_END:
02990 case AST_FRAME_IMAGE:
02991 case AST_FRAME_HTML:
02992 case AST_FRAME_MODEM:
02993 done = 1;
02994 break;
02995 case AST_FRAME_CONTROL:
02996 case AST_FRAME_IAX:
02997 case AST_FRAME_NULL:
02998 case AST_FRAME_CNG:
02999 break;
03000 }
03001
03002 if (done) {
03003 break;
03004 }
03005 }
03006
03007 if (res == 0) {
03008 ast_channel_lock(chan);
03009 while ((cur = AST_LIST_REMOVE_HEAD(&frames, frame_list))) {
03010 ast_queue_frame_head(chan, cur);
03011 ast_frfree(cur);
03012 }
03013 ast_channel_unlock(chan);
03014 }
03015 } while (0);
03016 break;
03017 default:
03018 break;
03019 }
03020
03021 return res;
03022 }
03023
03024 int ast_answer(struct ast_channel *chan)
03025 {
03026 return __ast_answer(chan, 0, 1);
03027 }
03028
03029 void ast_deactivate_generator(struct ast_channel *chan)
03030 {
03031 ast_channel_lock(chan);
03032 if (chan->generatordata) {
03033 if (chan->generator && chan->generator->release)
03034 chan->generator->release(chan, chan->generatordata);
03035 chan->generatordata = NULL;
03036 chan->generator = NULL;
03037 ast_channel_set_fd(chan, AST_GENERATOR_FD, -1);
03038 ast_clear_flag(chan, AST_FLAG_WRITE_INT);
03039 ast_settimeout(chan, 0, NULL, NULL);
03040 }
03041 ast_channel_unlock(chan);
03042 }
03043
03044 static int generator_force(const void *data)
03045 {
03046
03047 void *tmp;
03048 int res;
03049 int (*generate)(struct ast_channel *chan, void *tmp, int datalen, int samples) = NULL;
03050 struct ast_channel *chan = (struct ast_channel *)data;
03051
03052 ast_channel_lock(chan);
03053 tmp = chan->generatordata;
03054 chan->generatordata = NULL;
03055 if (chan->generator)
03056 generate = chan->generator->generate;
03057 ast_channel_unlock(chan);
03058
03059 if (!tmp || !generate)
03060 return 0;
03061
03062 res = generate(chan, tmp, 0, ast_format_rate(chan->writeformat & AST_FORMAT_AUDIO_MASK) / 50);
03063
03064 chan->generatordata = tmp;
03065
03066 if (res) {
03067 ast_debug(1, "Auto-deactivating generator\n");
03068 ast_deactivate_generator(chan);
03069 }
03070
03071 return 0;
03072 }
03073
03074 int ast_activate_generator(struct ast_channel *chan, struct ast_generator *gen, void *params)
03075 {
03076 int res = 0;
03077
03078 ast_channel_lock(chan);
03079 if (chan->generatordata) {
03080 if (chan->generator && chan->generator->release)
03081 chan->generator->release(chan, chan->generatordata);
03082 chan->generatordata = NULL;
03083 }
03084 if (gen->alloc && !(chan->generatordata = gen->alloc(chan, params))) {
03085 res = -1;
03086 }
03087 if (!res) {
03088 ast_settimeout(chan, 50, generator_force, chan);
03089 chan->generator = gen;
03090 }
03091 ast_channel_unlock(chan);
03092
03093 ast_prod(chan);
03094
03095 return res;
03096 }
03097
03098
03099 int ast_waitfor_n_fd(int *fds, int n, int *ms, int *exception)
03100 {
03101 int winner = -1;
03102 ast_waitfor_nandfds(NULL, 0, fds, n, exception, &winner, ms);
03103 return winner;
03104 }
03105
03106
03107 #ifdef HAVE_EPOLL
03108 static struct ast_channel *ast_waitfor_nandfds_classic(struct ast_channel **c, int n, int *fds, int nfds,
03109 int *exception, int *outfd, int *ms)
03110 #else
03111 struct ast_channel *ast_waitfor_nandfds(struct ast_channel **c, int n, int *fds, int nfds,
03112 int *exception, int *outfd, int *ms)
03113 #endif
03114 {
03115 struct timeval start = { 0 , 0 };
03116 struct pollfd *pfds = NULL;
03117 int res;
03118 long rms;
03119 int x, y, max;
03120 int sz;
03121 struct timeval now = { 0, 0 };
03122 struct timeval whentohangup = { 0, 0 }, diff;
03123 struct ast_channel *winner = NULL;
03124 struct fdmap {
03125 int chan;
03126 int fdno;
03127 } *fdmap = NULL;
03128
03129 if ((sz = n * AST_MAX_FDS + nfds)) {
03130 pfds = alloca(sizeof(*pfds) * sz);
03131 fdmap = alloca(sizeof(*fdmap) * sz);
03132 }
03133
03134 if (outfd)
03135 *outfd = -99999;
03136 if (exception)
03137 *exception = 0;
03138
03139
03140 for (x = 0; x < n; x++) {
03141 if (c[x]->masq && ast_do_masquerade(c[x])) {
03142 ast_log(LOG_WARNING, "Masquerade failed\n");
03143 *ms = -1;
03144 return NULL;
03145 }
03146
03147 ast_channel_lock(c[x]);
03148 if (!ast_tvzero(c[x]->whentohangup)) {
03149 if (ast_tvzero(whentohangup))
03150 now = ast_tvnow();
03151 diff = ast_tvsub(c[x]->whentohangup, now);
03152 if (diff.tv_sec < 0 || ast_tvzero(diff)) {
03153
03154 c[x]->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
03155 ast_channel_unlock(c[x]);
03156 return c[x];
03157 }
03158 if (ast_tvzero(whentohangup) || ast_tvcmp(diff, whentohangup) < 0)
03159 whentohangup = diff;
03160 }
03161 ast_channel_unlock(c[x]);
03162 }
03163
03164 rms = *ms;
03165
03166 if (!ast_tvzero(whentohangup) && whentohangup.tv_sec < INT_MAX / 1000) {
03167 rms = whentohangup.tv_sec * 1000 + whentohangup.tv_usec / 1000;
03168 if (*ms >= 0 && *ms < rms) {
03169 rms = *ms;
03170 }
03171 } else if (!ast_tvzero(whentohangup) && rms < 0) {
03172
03173 rms = INT_MAX;
03174 }
03175
03176
03177
03178
03179
03180 max = 0;
03181 for (x = 0; x < n; x++) {
03182 for (y = 0; y < AST_MAX_FDS; y++) {
03183 fdmap[max].fdno = y;
03184 fdmap[max].chan = x;
03185 max += ast_add_fd(&pfds[max], c[x]->fds[y]);
03186 }
03187 CHECK_BLOCKING(c[x]);
03188 }
03189
03190 for (x = 0; x < nfds; x++) {
03191 fdmap[max].chan = -1;
03192 max += ast_add_fd(&pfds[max], fds[x]);
03193 }
03194
03195 if (*ms > 0)
03196 start = ast_tvnow();
03197
03198 if (sizeof(int) == 4) {
03199 do {
03200 int kbrms = rms;
03201 if (kbrms > 600000)
03202 kbrms = 600000;
03203 res = ast_poll(pfds, max, kbrms);
03204 if (!res)
03205 rms -= kbrms;
03206 } while (!res && (rms > 0));
03207 } else {
03208 res = ast_poll(pfds, max, rms);
03209 }
03210 for (x = 0; x < n; x++)
03211 ast_clear_flag(c[x], AST_FLAG_BLOCKING);
03212 if (res < 0) {
03213 if (errno != EINTR)
03214 *ms = -1;
03215 return NULL;
03216 }
03217 if (!ast_tvzero(whentohangup)) {
03218 now = ast_tvnow();
03219 for (x = 0; x < n; x++) {
03220 if (!ast_tvzero(c[x]->whentohangup) && ast_tvcmp(c[x]->whentohangup, now) <= 0) {
03221 c[x]->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
03222 if (winner == NULL)
03223 winner = c[x];
03224 }
03225 }
03226 }
03227 if (res == 0) {
03228 *ms = 0;
03229 return winner;
03230 }
03231
03232
03233
03234
03235
03236 for (x = 0; x < max; x++) {
03237 res = pfds[x].revents;
03238 if (res == 0)
03239 continue;
03240 if (fdmap[x].chan >= 0) {
03241 winner = c[fdmap[x].chan];
03242 if (res & POLLPRI)
03243 ast_set_flag(winner, AST_FLAG_EXCEPTION);
03244 else
03245 ast_clear_flag(winner, AST_FLAG_EXCEPTION);
03246 winner->fdno = fdmap[x].fdno;
03247 } else {
03248 if (outfd)
03249 *outfd = pfds[x].fd;
03250 if (exception)
03251 *exception = (res & POLLPRI) ? -1 : 0;
03252 winner = NULL;
03253 }
03254 }
03255 if (*ms > 0) {
03256 *ms -= ast_tvdiff_ms(ast_tvnow(), start);
03257 if (*ms < 0)
03258 *ms = 0;
03259 }
03260 return winner;
03261 }
03262
03263 #ifdef HAVE_EPOLL
03264 static struct ast_channel *ast_waitfor_nandfds_simple(struct ast_channel *chan, int *ms)
03265 {
03266 struct timeval start = { 0 , 0 };
03267 int res = 0;
03268 struct epoll_event ev[1];
03269 long diff, rms = *ms;
03270 struct ast_channel *winner = NULL;
03271 struct ast_epoll_data *aed = NULL;
03272
03273
03274
03275 if (chan->masq && ast_do_masquerade(chan)) {
03276 ast_log(LOG_WARNING, "Failed to perform masquerade on %s\n", chan->name);
03277 *ms = -1;
03278 return NULL;
03279 }
03280
03281 ast_channel_lock(chan);
03282
03283 if (!ast_tvzero(chan->whentohangup)) {
03284 if ((diff = ast_tvdiff_ms(chan->whentohangup, ast_tvnow())) < 0) {
03285
03286 chan->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
03287 ast_channel_unlock(chan);
03288 return NULL;
03289 }
03290
03291 if (rms > diff)
03292 rms = diff;
03293 }
03294
03295 ast_channel_unlock(chan);
03296
03297
03298 CHECK_BLOCKING(chan);
03299
03300 if (*ms > 0)
03301 start = ast_tvnow();
03302
03303
03304 res = epoll_wait(chan->epfd, ev, 1, rms);
03305
03306
03307 ast_clear_flag(chan, AST_FLAG_BLOCKING);
03308
03309
03310 if (res < 0) {
03311 if (errno != EINTR)
03312 *ms = -1;
03313 return NULL;
03314 }
03315
03316
03317 if (!ast_tvzero(chan->whentohangup)) {
03318 if (ast_tvdiff_ms(ast_tvnow(), chan->whentohangup) >= 0) {
03319 chan->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
03320 winner = chan;
03321 }
03322 }
03323
03324
03325 if (!res) {
03326 *ms = 0;
03327 return winner;
03328 }
03329
03330
03331 aed = ev[0].data.ptr;
03332 chan->fdno = aed->which;
03333 if (ev[0].events & EPOLLPRI)
03334 ast_set_flag(chan, AST_FLAG_EXCEPTION);
03335 else
03336 ast_clear_flag(chan, AST_FLAG_EXCEPTION);
03337
03338 if (*ms > 0) {
03339 *ms -= ast_tvdiff_ms(ast_tvnow(), start);
03340 if (*ms < 0)
03341 *ms = 0;
03342 }
03343
03344 return chan;
03345 }
03346
03347 static struct ast_channel *ast_waitfor_nandfds_complex(struct ast_channel **c, int n, int *ms)
03348 {
03349 struct timeval start = { 0 , 0 };
03350 int res = 0, i;
03351 struct epoll_event ev[25] = { { 0, } };
03352 struct timeval now = { 0, 0 };
03353 long whentohangup = 0, diff = 0, rms = *ms;
03354 struct ast_channel *winner = NULL;
03355
03356 for (i = 0; i < n; i++) {
03357 if (c[i]->masq && ast_do_masquerade(c[i])) {
03358 ast_log(LOG_WARNING, "Masquerade failed\n");
03359 *ms = -1;
03360 return NULL;
03361 }
03362
03363 ast_channel_lock(c[i]);
03364 if (!ast_tvzero(c[i]->whentohangup)) {
03365 if (whentohangup == 0)
03366 now = ast_tvnow();
03367 if ((diff = ast_tvdiff_ms(c[i]->whentohangup, now)) < 0) {
03368 c[i]->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
03369 ast_channel_unlock(c[i]);
03370 return c[i];
03371 }
03372 if (!whentohangup || whentohangup > diff)
03373 whentohangup = diff;
03374 }
03375 ast_channel_unlock(c[i]);
03376 CHECK_BLOCKING(c[i]);
03377 }
03378
03379 rms = *ms;
03380 if (whentohangup) {
03381 rms = whentohangup;
03382 if (*ms >= 0 && *ms < rms)
03383 rms = *ms;
03384 }
03385
03386 if (*ms > 0)
03387 start = ast_tvnow();
03388
03389 res = epoll_wait(c[0]->epfd, ev, 25, rms);
03390
03391 for (i = 0; i < n; i++)
03392 ast_clear_flag(c[i], AST_FLAG_BLOCKING);
03393
03394 if (res < 0) {
03395 if (errno != EINTR)
03396 *ms = -1;
03397 return NULL;
03398 }
03399
03400 if (whentohangup) {
03401 now = ast_tvnow();
03402 for (i = 0; i < n; i++) {
03403 if (!ast_tvzero(c[i]->whentohangup) && ast_tvdiff_ms(now, c[i]->whentohangup) >= 0) {
03404 c[i]->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
03405 if (!winner)
03406 winner = c[i];
03407 }
03408 }
03409 }
03410
03411 if (!res) {
03412 *ms = 0;
03413 return winner;
03414 }
03415
03416 for (i = 0; i < res; i++) {
03417 struct ast_epoll_data *aed = ev[i].data.ptr;
03418
03419 if (!ev[i].events || !aed)
03420 continue;
03421
03422 winner = aed->chan;
03423 if (ev[i].events & EPOLLPRI)
03424 ast_set_flag(winner, AST_FLAG_EXCEPTION);
03425 else
03426 ast_clear_flag(winner, AST_FLAG_EXCEPTION);
03427 winner->fdno = aed->which;
03428 }
03429
03430 if (*ms > 0) {
03431 *ms -= ast_tvdiff_ms(ast_tvnow(), start);
03432 if (*ms < 0)
03433 *ms = 0;
03434 }
03435
03436 return winner;
03437 }
03438
03439 struct ast_channel *ast_waitfor_nandfds(struct ast_channel **c, int n, int *fds, int nfds,
03440 int *exception, int *outfd, int *ms)
03441 {
03442
03443 if (outfd)
03444 *outfd = -99999;
03445 if (exception)
03446 *exception = 0;
03447
03448
03449 if (!n || nfds || c[0]->epfd == -1)
03450 return ast_waitfor_nandfds_classic(c, n, fds, nfds, exception, outfd, ms);
03451 else if (!nfds && n == 1)
03452 return ast_waitfor_nandfds_simple(c[0], ms);
03453 else
03454 return ast_waitfor_nandfds_complex(c, n, ms);
03455 }
03456 #endif
03457
03458 struct ast_channel *ast_waitfor_n(struct ast_channel **c, int n, int *ms)
03459 {
03460 return ast_waitfor_nandfds(c, n, NULL, 0, NULL, NULL, ms);
03461 }
03462
03463 int ast_waitfor(struct ast_channel *c, int ms)
03464 {
03465 int oldms = ms;
03466
03467 ast_waitfor_nandfds(&c, 1, NULL, 0, NULL, NULL, &ms);
03468 if ((ms < 0) && (oldms < 0))
03469 ms = 0;
03470 return ms;
03471 }
03472
03473
03474 int ast_waitfordigit(struct ast_channel *c, int ms)
03475 {
03476 return ast_waitfordigit_full(c, ms, -1, -1);
03477 }
03478
03479 int ast_settimeout(struct ast_channel *c, unsigned int rate, int (*func)(const void *data), void *data)
03480 {
03481 int res;
03482 unsigned int real_rate = rate, max_rate;
03483
03484 ast_channel_lock(c);
03485
03486 if (c->timingfd == -1) {
03487 ast_channel_unlock(c);
03488 return -1;
03489 }
03490
03491 if (!func) {
03492 rate = 0;
03493 data = NULL;
03494 }
03495
03496 if (rate && rate > (max_rate = ast_timer_get_max_rate(c->timer))) {
03497 real_rate = max_rate;
03498 }
03499
03500 ast_debug(1, "Scheduling timer at (%u requested / %u actual) timer ticks per second\n", rate, real_rate);
03501
03502 res = ast_timer_set_rate(c->timer, real_rate);
03503
03504 c->timingfunc = func;
03505 c->timingdata = data;
03506
03507 ast_channel_unlock(c);
03508
03509 return res;
03510 }
03511
03512 int ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int cmdfd)
03513 {
03514
03515 if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c))
03516 return -1;
03517
03518
03519 ast_set_flag(c, AST_FLAG_END_DTMF_ONLY);
03520
03521
03522
03523 while (ms) {
03524 struct ast_channel *rchan;
03525 int outfd=-1;
03526
03527 errno = 0;
03528 rchan = ast_waitfor_nandfds(&c, 1, &cmdfd, (cmdfd > -1) ? 1 : 0, NULL, &outfd, &ms);
03529
03530 if (!rchan && outfd < 0 && ms) {
03531 if (errno == 0 || errno == EINTR)
03532 continue;
03533 ast_log(LOG_WARNING, "Wait failed (%s)\n", strerror(errno));
03534 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
03535 return -1;
03536 } else if (outfd > -1) {
03537
03538 ast_log(LOG_WARNING, "The FD we were waiting for has something waiting. Waitfordigit returning numeric 1\n");
03539 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
03540 return 1;
03541 } else if (rchan) {
03542 int res;
03543 struct ast_frame *f = ast_read(c);
03544 if (!f)
03545 return -1;
03546
03547 switch (f->frametype) {
03548 case AST_FRAME_DTMF_BEGIN:
03549 break;
03550 case AST_FRAME_DTMF_END:
03551 res = f->subclass.integer;
03552 ast_frfree(f);
03553 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
03554 return res;
03555 case AST_FRAME_CONTROL:
03556 switch (f->subclass.integer) {
03557 case AST_CONTROL_HANGUP:
03558 ast_frfree(f);
03559 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
03560 return -1;
03561 case AST_CONTROL_RINGING:
03562 case AST_CONTROL_ANSWER:
03563 case AST_CONTROL_SRCUPDATE:
03564 case AST_CONTROL_SRCCHANGE:
03565 case AST_CONTROL_CONNECTED_LINE:
03566 case AST_CONTROL_REDIRECTING:
03567 case AST_CONTROL_UPDATE_RTP_PEER:
03568 case -1:
03569
03570 break;
03571 default:
03572 ast_log(LOG_WARNING, "Unexpected control subclass '%d'\n", f->subclass.integer);
03573 break;
03574 }
03575 break;
03576 case AST_FRAME_VOICE:
03577
03578 if (audiofd > -1) {
03579 if (write(audiofd, f->data.ptr, f->datalen) < 0) {
03580 ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
03581 }
03582 }
03583 default:
03584
03585 break;
03586 }
03587 ast_frfree(f);
03588 }
03589 }
03590
03591 ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
03592
03593 return 0;
03594 }
03595
03596 static void send_dtmf_event(struct ast_channel *chan, const char *direction, const char digit, const char *begin, const char *end)
03597 {
03598 ast_manager_event(chan, EVENT_FLAG_DTMF,
03599 "DTMF",
03600 "Channel: %s\r\n"
03601 "Uniqueid: %s\r\n"
03602 "Digit: %c\r\n"
03603 "Direction: %s\r\n"
03604 "Begin: %s\r\n"
03605 "End: %s\r\n",
03606 chan->name, chan->uniqueid, digit, direction, begin, end);
03607 }
03608
03609 static void ast_read_generator_actions(struct ast_channel *chan, struct ast_frame *f)
03610 {
03611 if (chan->generator && chan->generator->generate && chan->generatordata && !ast_internal_timing_enabled(chan)) {
03612 void *tmp = chan->generatordata;
03613 int (*generate)(struct ast_channel *chan, void *tmp, int datalen, int samples) = chan->generator->generate;
03614 int res;
03615 int samples;
03616
03617 if (chan->timingfunc) {
03618 ast_debug(1, "Generator got voice, switching to phase locked mode\n");
03619 ast_settimeout(chan, 0, NULL, NULL);
03620 }
03621
03622 chan->generatordata = NULL;
03623
03624 if (f->subclass.codec != chan->writeformat) {
03625 float factor;
03626 factor = ((float) ast_format_rate(chan->writeformat)) / ((float) ast_format_rate(f->subclass.codec));
03627 samples = (int) ( ((float) f->samples) * factor );
03628 } else {
03629 samples = f->samples;
03630 }
03631
03632
03633
03634
03635
03636
03637
03638
03639
03640 ast_channel_unlock(chan);
03641 res = generate(chan, tmp, f->datalen, samples);
03642 ast_channel_lock(chan);
03643 chan->generatordata = tmp;
03644 if (res) {
03645 ast_debug(1, "Auto-deactivating generator\n");
03646 ast_deactivate_generator(chan);
03647 }
03648
03649 } else if (f->frametype == AST_FRAME_CNG) {
03650 if (chan->generator && !chan->timingfunc && (chan->timingfd > -1)) {
03651 ast_debug(1, "Generator got CNG, switching to timed mode\n");
03652 ast_settimeout(chan, 50, generator_force, chan);
03653 }
03654 }
03655 }
03656
03657 static inline void queue_dtmf_readq(struct ast_channel *chan, struct ast_frame *f)
03658 {
03659 struct ast_frame *fr = &chan->dtmff;
03660
03661 fr->frametype = AST_FRAME_DTMF_END;
03662 fr->subclass.integer = f->subclass.integer;
03663 fr->len = f->len;
03664
03665
03666
03667
03668
03669 ast_queue_frame(chan, fr);
03670 }
03671
03672
03673
03674
03675 static inline int should_skip_dtmf(struct ast_channel *chan)
03676 {
03677 if (ast_test_flag(chan, AST_FLAG_DEFER_DTMF | AST_FLAG_EMULATE_DTMF)) {
03678
03679
03680 return 1;
03681 }
03682
03683 if (!ast_tvzero(chan->dtmf_tv) &&
03684 ast_tvdiff_ms(ast_tvnow(), chan->dtmf_tv) < AST_MIN_DTMF_GAP) {
03685
03686
03687 return 1;
03688 }
03689
03690 return 0;
03691 }
03692
03693
03694
03695
03696
03697
03698
03699
03700
03701
03702 static inline int calc_monitor_jump(int samples, int sample_rate, int seek_rate)
03703 {
03704 int diff = sample_rate - seek_rate;
03705
03706 if (diff > 0) {
03707 samples = samples / (float) (sample_rate / seek_rate);
03708 } else if (diff < 0) {
03709 samples = samples * (float) (seek_rate / sample_rate);
03710 }
03711
03712 return samples;
03713 }
03714
03715 static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
03716 {
03717 struct ast_frame *f = NULL;
03718 int blah;
03719 int prestate;
03720 int cause = 0;
03721
03722
03723
03724
03725
03726 if (chan->masq) {
03727 if (ast_do_masquerade(chan))
03728 ast_log(LOG_WARNING, "Failed to perform masquerade\n");
03729 else
03730 f = &ast_null_frame;
03731 return f;
03732 }
03733
03734
03735 ast_channel_lock(chan);
03736
03737
03738 if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
03739 if (chan->generator)
03740 ast_deactivate_generator(chan);
03741
03742
03743
03744
03745
03746
03747
03748
03749
03750
03751 if (chan->_softhangup) {
03752 ast_queue_control(chan, AST_CONTROL_END_OF_Q);
03753 } else {
03754 goto done;
03755 }
03756 } else {
03757 #ifdef AST_DEVMODE
03758
03759
03760
03761
03762
03763
03764
03765
03766
03767
03768
03769
03770 if (chan->fdno == -1) {
03771 ast_log(LOG_ERROR,
03772 "ast_read() on chan '%s' called with no recorded file descriptor.\n",
03773 chan->name);
03774 }
03775 #endif
03776 }
03777
03778 prestate = chan->_state;
03779
03780
03781
03782 if (chan->alertpipe[0] > -1) {
03783 int flags = fcntl(chan->alertpipe[0], F_GETFL);
03784
03785
03786 if ((flags & O_NONBLOCK) == 0) {
03787 ast_log(LOG_ERROR, "Alertpipe on channel %s lost O_NONBLOCK?!!\n", chan->name);
03788 if (fcntl(chan->alertpipe[0], F_SETFL, flags | O_NONBLOCK) < 0) {
03789 ast_log(LOG_WARNING, "Unable to set alertpipe nonblocking! (%d: %s)\n", errno, strerror(errno));
03790 f = &ast_null_frame;
03791 goto done;
03792 }
03793 }
03794 if (read(chan->alertpipe[0], &blah, sizeof(blah)) < 0) {
03795 if (errno != EINTR && errno != EAGAIN)
03796 ast_log(LOG_WARNING, "read() failed: %s\n", strerror(errno));
03797 }
03798 }
03799
03800 if (chan->timingfd > -1 && chan->fdno == AST_TIMING_FD) {
03801 enum ast_timer_event res;
03802
03803 ast_clear_flag(chan, AST_FLAG_EXCEPTION);
03804
03805 res = ast_timer_get_event(chan->timer);
03806
03807 switch (res) {
03808 case AST_TIMING_EVENT_EXPIRED:
03809 ast_timer_ack(chan->timer, 1);
03810
03811 if (chan->timingfunc) {
03812
03813 int (*func)(const void *) = chan->timingfunc;
03814 void *data = chan->timingdata;
03815 chan->fdno = -1;
03816 ast_channel_unlock(chan);
03817 func(data);
03818 } else {
03819 ast_timer_set_rate(chan->timer, 0);
03820 chan->fdno = -1;
03821 ast_channel_unlock(chan);
03822 }
03823
03824
03825 return &ast_null_frame;
03826
03827 case AST_TIMING_EVENT_CONTINUOUS:
03828 if (AST_LIST_EMPTY(&chan->readq) ||
03829 !AST_LIST_NEXT(AST_LIST_FIRST(&chan->readq), frame_list)) {
03830 ast_timer_disable_continuous(chan->timer);
03831 }
03832 break;
03833 }
03834
03835 } else if (chan->fds[AST_GENERATOR_FD] > -1 && chan->fdno == AST_GENERATOR_FD) {
03836
03837
03838
03839 void *tmp = chan->generatordata;
03840 chan->generatordata = NULL;
03841 chan->generator->generate(chan, tmp, -1, -1);
03842 chan->generatordata = tmp;
03843 f = &ast_null_frame;
03844 chan->fdno = -1;
03845 goto done;
03846 }
03847
03848
03849 if (!AST_LIST_EMPTY(&chan->readq)) {
03850 int skip_dtmf = should_skip_dtmf(chan);
03851
03852 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->readq, f, frame_list) {
03853
03854
03855
03856
03857 if ( (f->frametype == AST_FRAME_DTMF_BEGIN || f->frametype == AST_FRAME_DTMF_END) && skip_dtmf) {
03858 continue;
03859 }
03860
03861 AST_LIST_REMOVE_CURRENT(frame_list);
03862 break;
03863 }
03864 AST_LIST_TRAVERSE_SAFE_END;
03865
03866 if (!f) {
03867
03868 f = &ast_null_frame;
03869 if (chan->alertpipe[0] > -1) {
03870 int poke = 0;
03871
03872
03873 if (write(chan->alertpipe[1], &poke, sizeof(poke)) != sizeof(poke)) {
03874 ast_log(LOG_ERROR, "Failed to write to alertpipe: %s\n", strerror(errno));
03875 }
03876 }
03877 }
03878
03879
03880
03881 if (f->frametype == AST_FRAME_CONTROL) {
03882 switch (f->subclass.integer) {
03883 case AST_CONTROL_HANGUP:
03884 chan->_softhangup |= AST_SOFTHANGUP_DEV;
03885 cause = f->data.uint32;
03886
03887 case AST_CONTROL_END_OF_Q:
03888 ast_frfree(f);
03889 f = NULL;
03890 break;
03891 default:
03892 break;
03893 }
03894 }
03895 } else {
03896 chan->blocker = pthread_self();
03897 if (ast_test_flag(chan, AST_FLAG_EXCEPTION)) {
03898 if (chan->tech->exception)
03899 f = chan->tech->exception(chan);
03900 else {
03901 ast_log(LOG_WARNING, "Exception flag set on '%s', but no exception handler\n", chan->name);
03902 f = &ast_null_frame;
03903 }
03904
03905 ast_clear_flag(chan, AST_FLAG_EXCEPTION);
03906 } else if (chan->tech && chan->tech->read)
03907 f = chan->tech->read(chan);
03908 else
03909 ast_log(LOG_WARNING, "No read routine on channel %s\n", chan->name);
03910 }
03911
03912
03913
03914
03915
03916 chan->fdno = -1;
03917
03918
03919
03920 f = ast_framehook_list_read_event(chan->framehooks, f);
03921
03922 if (f) {
03923 struct ast_frame *readq_tail = AST_LIST_LAST(&chan->readq);
03924 struct ast_control_read_action_payload *read_action_payload;
03925 struct ast_party_connected_line connected;
03926
03927
03928
03929
03930 if (AST_LIST_NEXT(f, frame_list)) {
03931 ast_queue_frame(chan, AST_LIST_NEXT(f, frame_list));
03932 ast_frfree(AST_LIST_NEXT(f, frame_list));
03933 AST_LIST_NEXT(f, frame_list) = NULL;
03934 }
03935
03936 switch (f->frametype) {
03937 case AST_FRAME_CONTROL:
03938 if (f->subclass.integer == AST_CONTROL_ANSWER) {
03939 if (!ast_test_flag(chan, AST_FLAG_OUTGOING)) {
03940 ast_debug(1, "Ignoring answer on an inbound call!\n");
03941 ast_frfree(f);
03942 f = &ast_null_frame;
03943 } else if (prestate == AST_STATE_UP && ast_bridged_channel(chan)) {
03944 ast_debug(1, "Dropping duplicate answer!\n");
03945 ast_frfree(f);
03946 f = &ast_null_frame;
03947 } else {
03948
03949 ast_setstate(chan, AST_STATE_UP);
03950
03951 ast_cel_report_event(chan, AST_CEL_ANSWER, NULL, NULL, NULL);
03952 }
03953 } else if (f->subclass.integer == AST_CONTROL_READ_ACTION) {
03954 read_action_payload = f->data.ptr;
03955 switch (read_action_payload->action) {
03956 case AST_FRAME_READ_ACTION_CONNECTED_LINE_MACRO:
03957 ast_party_connected_line_init(&connected);
03958 ast_party_connected_line_copy(&connected, &chan->connected);
03959 if (ast_connected_line_parse_data(read_action_payload->payload,
03960 read_action_payload->payload_size, &connected)) {
03961 ast_party_connected_line_free(&connected);
03962 break;
03963 }
03964 if (ast_channel_connected_line_macro(NULL, chan, &connected, 1, 0)) {
03965 ast_indicate_data(chan, AST_CONTROL_CONNECTED_LINE,
03966 read_action_payload->payload,
03967 read_action_payload->payload_size);
03968 }
03969 ast_party_connected_line_free(&connected);
03970 break;
03971 }
03972 ast_frfree(f);
03973 f = &ast_null_frame;
03974 }
03975 break;
03976 case AST_FRAME_DTMF_END:
03977 send_dtmf_event(chan, "Received", f->subclass.integer, "No", "Yes");
03978 ast_log(LOG_DTMF, "DTMF end '%c' received on %s, duration %ld ms\n", f->subclass.integer, chan->name, f->len);
03979
03980 if (ast_test_flag(chan, AST_FLAG_DEFER_DTMF) || ast_test_flag(chan, AST_FLAG_EMULATE_DTMF)) {
03981 queue_dtmf_readq(chan, f);
03982 ast_frfree(f);
03983 f = &ast_null_frame;
03984 } else if (!ast_test_flag(chan, AST_FLAG_IN_DTMF | AST_FLAG_END_DTMF_ONLY)) {
03985 if (!ast_tvzero(chan->dtmf_tv) &&
03986 ast_tvdiff_ms(ast_tvnow(), chan->dtmf_tv) < AST_MIN_DTMF_GAP) {
03987
03988 queue_dtmf_readq(chan, f);
03989 ast_frfree(f);
03990 f = &ast_null_frame;
03991 } else {
03992
03993 f->frametype = AST_FRAME_DTMF_BEGIN;
03994 ast_set_flag(chan, AST_FLAG_EMULATE_DTMF);
03995 chan->emulate_dtmf_digit = f->subclass.integer;
03996 chan->dtmf_tv = ast_tvnow();
03997 if (f->len) {
03998 if (f->len > AST_MIN_DTMF_DURATION)
03999 chan->emulate_dtmf_duration = f->len;
04000 else
04001 chan->emulate_dtmf_duration = AST_MIN_DTMF_DURATION;
04002 } else
04003 chan->emulate_dtmf_duration = AST_DEFAULT_EMULATE_DTMF_DURATION;
04004 ast_log(LOG_DTMF, "DTMF begin emulation of '%c' with duration %u queued on %s\n", f->subclass.integer, chan->emulate_dtmf_duration, chan->name);
04005 }
04006 if (chan->audiohooks) {
04007 struct ast_frame *old_frame = f;
04008
04009
04010
04011 f = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_READ, f);
04012 if (old_frame != f)
04013 ast_frfree(old_frame);
04014 }
04015 } else {
04016 struct timeval now = ast_tvnow();
04017 if (ast_test_flag(chan, AST_FLAG_IN_DTMF)) {
04018 ast_log(LOG_DTMF, "DTMF end accepted with begin '%c' on %s\n", f->subclass.integer, chan->name);
04019 ast_clear_flag(chan, AST_FLAG_IN_DTMF);
04020 if (!f->len)
04021 f->len = ast_tvdiff_ms(now, chan->dtmf_tv);
04022
04023
04024
04025
04026
04027
04028
04029
04030
04031 if (ast_tvdiff_ms(now, chan->dtmf_tv) < AST_MIN_DTMF_DURATION) {
04032 f->len = ast_tvdiff_ms(now, chan->dtmf_tv);
04033 ast_log(LOG_DTMF, "DTMF end '%c' detected to have actual duration %ld on the wire, emulation will be triggered on %s\n", f->subclass.integer, f->len, chan->name);
04034 }
04035 } else if (!f->len) {
04036 ast_log(LOG_DTMF, "DTMF end accepted without begin '%c' on %s\n", f->subclass.integer, chan->name);
04037 f->len = AST_MIN_DTMF_DURATION;
04038 }
04039 if (f->len < AST_MIN_DTMF_DURATION && !ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY)) {
04040 ast_log(LOG_DTMF, "DTMF end '%c' has duration %ld but want minimum %d, emulating on %s\n", f->subclass.integer, f->len, AST_MIN_DTMF_DURATION, chan->name);
04041 ast_set_flag(chan, AST_FLAG_EMULATE_DTMF);
04042 chan->emulate_dtmf_digit = f->subclass.integer;
04043 chan->emulate_dtmf_duration = AST_MIN_DTMF_DURATION - f->len;
04044 ast_frfree(f);
04045 f = &ast_null_frame;
04046 } else {
04047 ast_log(LOG_DTMF, "DTMF end passthrough '%c' on %s\n", f->subclass.integer, chan->name);
04048 if (f->len < AST_MIN_DTMF_DURATION) {
04049 f->len = AST_MIN_DTMF_DURATION;
04050 }
04051 chan->dtmf_tv = now;
04052 }
04053 if (chan->audiohooks) {
04054 struct ast_frame *old_frame = f;
04055 f = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_READ, f);
04056 if (old_frame != f)
04057 ast_frfree(old_frame);
04058 }
04059 }
04060 break;
04061 case AST_FRAME_DTMF_BEGIN:
04062 send_dtmf_event(chan, "Received", f->subclass.integer, "Yes", "No");
04063 ast_log(LOG_DTMF, "DTMF begin '%c' received on %s\n", f->subclass.integer, chan->name);
04064 if ( ast_test_flag(chan, AST_FLAG_DEFER_DTMF | AST_FLAG_END_DTMF_ONLY | AST_FLAG_EMULATE_DTMF) ||
04065 (!ast_tvzero(chan->dtmf_tv) &&
04066 ast_tvdiff_ms(ast_tvnow(), chan->dtmf_tv) < AST_MIN_DTMF_GAP) ) {
04067 ast_log(LOG_DTMF, "DTMF begin ignored '%c' on %s\n", f->subclass.integer, chan->name);
04068 ast_frfree(f);
04069 f = &ast_null_frame;
04070 } else {
04071 ast_set_flag(chan, AST_FLAG_IN_DTMF);
04072 chan->dtmf_tv = ast_tvnow();
04073 ast_log(LOG_DTMF, "DTMF begin passthrough '%c' on %s\n", f->subclass.integer, chan->name);
04074 }
04075 break;
04076 case AST_FRAME_NULL:
04077
04078
04079
04080
04081 if (ast_test_flag(chan, AST_FLAG_EMULATE_DTMF)) {
04082 struct timeval now = ast_tvnow();
04083 if (!chan->emulate_dtmf_duration) {
04084 ast_clear_flag(chan, AST_FLAG_EMULATE_DTMF);
04085 chan->emulate_dtmf_digit = 0;
04086 } else if (ast_tvdiff_ms(now, chan->dtmf_tv) >= chan->emulate_dtmf_duration) {
04087 chan->emulate_dtmf_duration = 0;
04088 ast_frfree(f);
04089 f = &chan->dtmff;
04090 f->frametype = AST_FRAME_DTMF_END;
04091 f->subclass.integer = chan->emulate_dtmf_digit;
04092 f->len = ast_tvdiff_ms(now, chan->dtmf_tv);
04093 chan->dtmf_tv = now;
04094 ast_clear_flag(chan, AST_FLAG_EMULATE_DTMF);
04095 chan->emulate_dtmf_digit = 0;
04096 ast_log(LOG_DTMF, "DTMF end emulation of '%c' queued on %s\n", f->subclass.integer, chan->name);
04097 if (chan->audiohooks) {
04098 struct ast_frame *old_frame = f;
04099 f = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_READ, f);
04100 if (old_frame != f) {
04101 ast_frfree(old_frame);
04102 }
04103 }
04104 }
04105 }
04106 break;
04107 case AST_FRAME_VOICE:
04108
04109
04110
04111
04112 if (ast_test_flag(chan, AST_FLAG_EMULATE_DTMF) && !chan->emulate_dtmf_duration) {
04113 ast_clear_flag(chan, AST_FLAG_EMULATE_DTMF);
04114 chan->emulate_dtmf_digit = 0;
04115 }
04116
04117 if (dropaudio || ast_test_flag(chan, AST_FLAG_IN_DTMF)) {
04118 if (dropaudio)
04119 ast_read_generator_actions(chan, f);
04120 ast_frfree(f);
04121 f = &ast_null_frame;
04122 }
04123
04124 if (ast_test_flag(chan, AST_FLAG_EMULATE_DTMF) && !ast_test_flag(chan, AST_FLAG_IN_DTMF)) {
04125 struct timeval now = ast_tvnow();
04126 if (ast_tvdiff_ms(now, chan->dtmf_tv) >= chan->emulate_dtmf_duration) {
04127 chan->emulate_dtmf_duration = 0;
04128 ast_frfree(f);
04129 f = &chan->dtmff;
04130 f->frametype = AST_FRAME_DTMF_END;
04131 f->subclass.integer = chan->emulate_dtmf_digit;
04132 f->len = ast_tvdiff_ms(now, chan->dtmf_tv);
04133 chan->dtmf_tv = now;
04134 if (chan->audiohooks) {
04135 struct ast_frame *old_frame = f;
04136 f = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_READ, f);
04137 if (old_frame != f)
04138 ast_frfree(old_frame);
04139 }
04140 ast_log(LOG_DTMF, "DTMF end emulation of '%c' queued on %s\n", f->subclass.integer, chan->name);
04141 } else {
04142
04143 ast_frfree(f);
04144 f = &ast_null_frame;
04145 }
04146 } else if ((f->frametype == AST_FRAME_VOICE) && !(f->subclass.codec & chan->nativeformats)) {
04147
04148 char to[200];
04149 ast_log(LOG_NOTICE, "Dropping incompatible voice frame on %s of format %s since our native format has changed to %s\n",
04150 chan->name, ast_getformatname(f->subclass.codec), ast_getformatname_multiple(to, sizeof(to), chan->nativeformats));
04151 ast_frfree(f);
04152 f = &ast_null_frame;
04153 } else if ((f->frametype == AST_FRAME_VOICE)) {
04154
04155 if (chan->audiohooks) {
04156 struct ast_frame *old_frame = f;
04157 f = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_READ, f);
04158 if (old_frame != f)
04159 ast_frfree(old_frame);
04160 }
04161 if (chan->monitor && chan->monitor->read_stream ) {
04162
04163 #ifndef MONITOR_CONSTANT_DELAY
04164 int jump = chan->outsmpl - chan->insmpl - 4 * f->samples;
04165 if (jump >= 0) {
04166 jump = calc_monitor_jump((chan->outsmpl - chan->insmpl), ast_format_rate(f->subclass.codec), ast_format_rate(chan->monitor->read_stream->fmt->format));
04167 if (ast_seekstream(chan->monitor->read_stream, jump, SEEK_FORCECUR) == -1)
04168 ast_log(LOG_WARNING, "Failed to perform seek in monitoring read stream, synchronization between the files may be broken\n");
04169 chan->insmpl += (chan->outsmpl - chan->insmpl) + f->samples;
04170 } else
04171 chan->insmpl+= f->samples;
04172 #else
04173 int jump = calc_monitor_jump((chan->outsmpl - chan->insmpl), ast_format_rate(f->subclass.codec), ast_format_rate(chan->monitor->read_stream->fmt->format));
04174 if (jump - MONITOR_DELAY >= 0) {
04175 if (ast_seekstream(chan->monitor->read_stream, jump - f->samples, SEEK_FORCECUR) == -1)
04176 ast_log(LOG_WARNING, "Failed to perform seek in monitoring read stream, synchronization between the files may be broken\n");
04177 chan->insmpl += chan->outsmpl - chan->insmpl;
04178 } else
04179 chan->insmpl += f->samples;
04180 #endif
04181 if (chan->monitor->state == AST_MONITOR_RUNNING) {
04182 if (ast_writestream(chan->monitor->read_stream, f) < 0)
04183 ast_log(LOG_WARNING, "Failed to write data to channel monitor read stream\n");
04184 }
04185 }
04186
04187 if (chan->readtrans && (f = ast_translate(chan->readtrans, f, 1)) == NULL) {
04188 f = &ast_null_frame;
04189 }
04190
04191
04192
04193
04194
04195
04196
04197
04198 if (AST_LIST_NEXT(f, frame_list)) {
04199 if (!readq_tail) {
04200 ast_queue_frame_head(chan, AST_LIST_NEXT(f, frame_list));
04201 } else {
04202 __ast_queue_frame(chan, AST_LIST_NEXT(f, frame_list), 0, readq_tail);
04203 }
04204 ast_frfree(AST_LIST_NEXT(f, frame_list));
04205 AST_LIST_NEXT(f, frame_list) = NULL;
04206 }
04207
04208
04209
04210 ast_read_generator_actions(chan, f);
04211 }
04212 break;
04213 default:
04214
04215 break;
04216 }
04217 } else {
04218
04219 if (!chan->_softhangup) {
04220 chan->_softhangup |= AST_SOFTHANGUP_DEV;
04221 }
04222 if (cause)
04223 chan->hangupcause = cause;
04224 if (chan->generator)
04225 ast_deactivate_generator(chan);
04226
04227 }
04228
04229
04230 if (chan->fin & DEBUGCHAN_FLAG)
04231 ast_frame_dump(chan->name, f, "<<");
04232 chan->fin = FRAMECOUNT_INC(chan->fin);
04233
04234 done:
04235 if (chan->music_state && chan->generator && chan->generator->digit && f && f->frametype == AST_FRAME_DTMF_END)
04236 chan->generator->digit(chan, f->subclass.integer);
04237
04238 if (chan->audiohooks && ast_audiohook_write_list_empty(chan->audiohooks)) {
04239
04240 ast_audiohook_detach_list(chan->audiohooks);
04241 chan->audiohooks = NULL;
04242 }
04243 ast_channel_unlock(chan);
04244 return f;
04245 }
04246
04247 int ast_internal_timing_enabled(struct ast_channel *chan)
04248 {
04249 return (ast_opt_internal_timing && chan->timingfd > -1);
04250 }
04251
04252 struct ast_frame *ast_read(struct ast_channel *chan)
04253 {
04254 return __ast_read(chan, 0);
04255 }
04256
04257 struct ast_frame *ast_read_noaudio(struct ast_channel *chan)
04258 {
04259 return __ast_read(chan, 1);
04260 }
04261
04262 int ast_indicate(struct ast_channel *chan, int condition)
04263 {
04264 return ast_indicate_data(chan, condition, NULL, 0);
04265 }
04266
04267 static int attribute_const is_visible_indication(enum ast_control_frame_type condition)
04268 {
04269
04270
04271
04272 switch (condition) {
04273 case AST_CONTROL_PROGRESS:
04274 case AST_CONTROL_PROCEEDING:
04275 case AST_CONTROL_VIDUPDATE:
04276 case AST_CONTROL_SRCUPDATE:
04277 case AST_CONTROL_SRCCHANGE:
04278 case AST_CONTROL_RADIO_KEY:
04279 case AST_CONTROL_RADIO_UNKEY:
04280 case AST_CONTROL_OPTION:
04281 case AST_CONTROL_WINK:
04282 case AST_CONTROL_FLASH:
04283 case AST_CONTROL_OFFHOOK:
04284 case AST_CONTROL_TAKEOFFHOOK:
04285 case AST_CONTROL_ANSWER:
04286 case AST_CONTROL_HANGUP:
04287 case AST_CONTROL_CONNECTED_LINE:
04288 case AST_CONTROL_REDIRECTING:
04289 case AST_CONTROL_TRANSFER:
04290 case AST_CONTROL_T38_PARAMETERS:
04291 case _XXX_AST_CONTROL_T38:
04292 case AST_CONTROL_CC:
04293 case AST_CONTROL_READ_ACTION:
04294 case AST_CONTROL_AOC:
04295 case AST_CONTROL_END_OF_Q:
04296 case AST_CONTROL_UPDATE_RTP_PEER:
04297 break;
04298
04299 case AST_CONTROL_INCOMPLETE:
04300 case AST_CONTROL_CONGESTION:
04301 case AST_CONTROL_BUSY:
04302 case AST_CONTROL_RINGING:
04303 case AST_CONTROL_RING:
04304 case AST_CONTROL_HOLD:
04305
04306 return 1;
04307
04308 case AST_CONTROL_UNHOLD:
04309
04310 break;
04311 }
04312
04313 return 0;
04314 }
04315
04316 int ast_indicate_data(struct ast_channel *chan, int _condition,
04317 const void *data, size_t datalen)
04318 {
04319
04320
04321 enum ast_control_frame_type condition = _condition;
04322 struct ast_tone_zone_sound *ts = NULL;
04323 int res;
04324
04325 struct ast_frame *awesome_frame = NULL;
04326
04327 ast_channel_lock(chan);
04328
04329
04330 if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
04331 res = -1;
04332 goto indicate_cleanup;
04333 }
04334
04335 if (!ast_framehook_list_is_empty(chan->framehooks)) {
04336
04337 struct ast_frame frame = {
04338 .frametype = AST_FRAME_CONTROL,
04339 .subclass.integer = condition,
04340 .data.ptr = (void *) data,
04341 .datalen = datalen
04342 };
04343
04344
04345 awesome_frame = ast_frdup(&frame);
04346
04347
04348 if (!(awesome_frame = ast_framehook_list_write_event(chan->framehooks, awesome_frame))
04349 || awesome_frame->frametype != AST_FRAME_CONTROL) {
04350
04351 res = 0;
04352 goto indicate_cleanup;
04353 }
04354
04355 condition = awesome_frame->subclass.integer;
04356 data = awesome_frame->data.ptr;
04357 datalen = awesome_frame->datalen;
04358 }
04359
04360 switch (condition) {
04361 case AST_CONTROL_CONNECTED_LINE:
04362 {
04363 struct ast_party_connected_line connected;
04364
04365 ast_party_connected_line_set_init(&connected, &chan->connected);
04366 res = ast_connected_line_parse_data(data, datalen, &connected);
04367 if (!res) {
04368 ast_channel_set_connected_line(chan, &connected, NULL);
04369 }
04370 ast_party_connected_line_free(&connected);
04371 }
04372 break;
04373
04374 case AST_CONTROL_REDIRECTING:
04375 {
04376 struct ast_party_redirecting redirecting;
04377
04378 ast_party_redirecting_set_init(&redirecting, &chan->redirecting);
04379 res = ast_redirecting_parse_data(data, datalen, &redirecting);
04380 if (!res) {
04381 ast_channel_set_redirecting(chan, &redirecting, NULL);
04382 }
04383 ast_party_redirecting_free(&redirecting);
04384 }
04385 break;
04386
04387 default:
04388 break;
04389 }
04390
04391 if (is_visible_indication(condition)) {
04392
04393 chan->visible_indication = condition;
04394 } else if (condition == AST_CONTROL_UNHOLD || _condition < 0) {
04395
04396 chan->visible_indication = 0;
04397 }
04398
04399 if (chan->tech->indicate) {
04400
04401 res = chan->tech->indicate(chan, condition, data, datalen);
04402 } else {
04403 res = -1;
04404 }
04405
04406 if (!res) {
04407
04408 res = 0;
04409 goto indicate_cleanup;
04410 }
04411
04412
04413
04414
04415
04416
04417
04418 if (_condition < 0) {
04419
04420 ast_playtones_stop(chan);
04421 res = 0;
04422 goto indicate_cleanup;
04423 }
04424
04425
04426 switch (condition) {
04427 case _XXX_AST_CONTROL_T38:
04428
04429 res = -1;
04430 goto indicate_cleanup;
04431 case AST_CONTROL_T38_PARAMETERS:
04432
04433
04434
04435
04436
04437
04438
04439 goto indicate_cleanup;
04440 case AST_CONTROL_RINGING:
04441 ts = ast_get_indication_tone(chan->zone, "ring");
04442
04443
04444
04445
04446
04447
04448
04449 if (chan->_state == AST_STATE_UP) {
04450 res = 0;
04451 }
04452 break;
04453 case AST_CONTROL_BUSY:
04454 ts = ast_get_indication_tone(chan->zone, "busy");
04455 break;
04456 case AST_CONTROL_INCOMPLETE:
04457 case AST_CONTROL_CONGESTION:
04458 ts = ast_get_indication_tone(chan->zone, "congestion");
04459 break;
04460 case AST_CONTROL_PROGRESS:
04461 case AST_CONTROL_PROCEEDING:
04462 case AST_CONTROL_VIDUPDATE:
04463 case AST_CONTROL_SRCUPDATE:
04464 case AST_CONTROL_SRCCHANGE:
04465 case AST_CONTROL_RADIO_KEY:
04466 case AST_CONTROL_RADIO_UNKEY:
04467 case AST_CONTROL_OPTION:
04468 case AST_CONTROL_WINK:
04469 case AST_CONTROL_FLASH:
04470 case AST_CONTROL_OFFHOOK:
04471 case AST_CONTROL_TAKEOFFHOOK:
04472 case AST_CONTROL_ANSWER:
04473 case AST_CONTROL_HANGUP:
04474 case AST_CONTROL_RING:
04475 case AST_CONTROL_HOLD:
04476 case AST_CONTROL_UNHOLD:
04477 case AST_CONTROL_TRANSFER:
04478 case AST_CONTROL_CONNECTED_LINE:
04479 case AST_CONTROL_REDIRECTING:
04480 case AST_CONTROL_CC:
04481 case AST_CONTROL_READ_ACTION:
04482 case AST_CONTROL_AOC:
04483 case AST_CONTROL_END_OF_Q:
04484 case AST_CONTROL_UPDATE_RTP_PEER:
04485
04486 res = 0;
04487 break;
04488 }
04489
04490 if (ts) {
04491
04492 ast_debug(1, "Driver for channel '%s' does not support indication %d, emulating it\n", chan->name, condition);
04493 res = ast_playtones_start(chan, 0, ts->data, 1);
04494 ts = ast_tone_zone_sound_unref(ts);
04495 }
04496
04497 if (res) {
04498
04499 ast_log(LOG_WARNING, "Unable to handle indication %d for '%s'\n", condition, chan->name);
04500 }
04501
04502 indicate_cleanup:
04503 ast_channel_unlock(chan);
04504 if (awesome_frame) {
04505 ast_frfree(awesome_frame);
04506 }
04507
04508 return res;
04509 }
04510
04511 int ast_recvchar(struct ast_channel *chan, int timeout)
04512 {
04513 int c;
04514 char *buf = ast_recvtext(chan, timeout);
04515 if (buf == NULL)
04516 return -1;
04517 c = *(unsigned char *)buf;
04518 ast_free(buf);
04519 return c;
04520 }
04521
04522 char *ast_recvtext(struct ast_channel *chan, int timeout)
04523 {
04524 int res, done = 0;
04525 char *buf = NULL;
04526
04527 while (!done) {
04528 struct ast_frame *f;
04529 if (ast_check_hangup(chan))
04530 break;
04531 res = ast_waitfor(chan, timeout);
04532 if (res <= 0)
04533 break;
04534 timeout = res;
04535 f = ast_read(chan);
04536 if (f == NULL)
04537 break;
04538 if (f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_HANGUP)
04539 done = 1;
04540 else if (f->frametype == AST_FRAME_TEXT) {
04541 buf = ast_strndup((char *) f->data.ptr, f->datalen);
04542 done = 1;
04543 }
04544 ast_frfree(f);
04545 }
04546 return buf;
04547 }
04548
04549 int ast_sendtext(struct ast_channel *chan, const char *text)
04550 {
04551 int res = 0;
04552
04553 ast_channel_lock(chan);
04554
04555 if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
04556 ast_channel_unlock(chan);
04557 return -1;
04558 }
04559 CHECK_BLOCKING(chan);
04560 if (chan->tech->send_text)
04561 res = chan->tech->send_text(chan, text);
04562 ast_clear_flag(chan, AST_FLAG_BLOCKING);
04563 ast_channel_unlock(chan);
04564 return res;
04565 }
04566
04567 int ast_senddigit_begin(struct ast_channel *chan, char digit)
04568 {
04569
04570
04571 static const char * const dtmf_tones[] = {
04572 "941+1336",
04573 "697+1209",
04574 "697+1336",
04575 "697+1477",
04576 "770+1209",
04577 "770+1336",
04578 "770+1477",
04579 "852+1209",
04580 "852+1336",
04581 "852+1477",
04582 "697+1633",
04583 "770+1633",
04584 "852+1633",
04585 "941+1633",
04586 "941+1209",
04587 "941+1477"
04588 };
04589
04590 if (!chan->tech->send_digit_begin)
04591 return 0;
04592
04593 if (!chan->tech->send_digit_begin(chan, digit))
04594 return 0;
04595
04596 if (digit >= '0' && digit <='9')
04597 ast_playtones_start(chan, 0, dtmf_tones[digit-'0'], 0);
04598 else if (digit >= 'A' && digit <= 'D')
04599 ast_playtones_start(chan, 0, dtmf_tones[digit-'A'+10], 0);
04600 else if (digit == '*')
04601 ast_playtones_start(chan, 0, dtmf_tones[14], 0);
04602 else if (digit == '#')
04603 ast_playtones_start(chan, 0, dtmf_tones[15], 0);
04604 else {
04605
04606 ast_debug(1, "Unable to generate DTMF tone '%c' for '%s'\n", digit, chan->name);
04607 }
04608
04609 return 0;
04610 }
04611
04612 int ast_senddigit_end(struct ast_channel *chan, char digit, unsigned int duration)
04613 {
04614 int res = -1;
04615
04616 if (chan->tech->send_digit_end)
04617 res = chan->tech->send_digit_end(chan, digit, duration);
04618
04619 if (res && chan->generator)
04620 ast_playtones_stop(chan);
04621
04622 return 0;
04623 }
04624
04625 int ast_senddigit(struct ast_channel *chan, char digit, unsigned int duration)
04626 {
04627 if (chan->tech->send_digit_begin) {
04628 ast_senddigit_begin(chan, digit);
04629 ast_safe_sleep(chan, (duration >= AST_DEFAULT_EMULATE_DTMF_DURATION ? duration : AST_DEFAULT_EMULATE_DTMF_DURATION));
04630 }
04631
04632 return ast_senddigit_end(chan, digit, (duration >= AST_DEFAULT_EMULATE_DTMF_DURATION ? duration : AST_DEFAULT_EMULATE_DTMF_DURATION));
04633 }
04634
04635 int ast_prod(struct ast_channel *chan)
04636 {
04637 struct ast_frame a = { AST_FRAME_VOICE };
04638 char nothing[128];
04639
04640
04641 if (chan->_state != AST_STATE_UP) {
04642 ast_debug(1, "Prodding channel '%s'\n", chan->name);
04643 a.subclass.codec = chan->rawwriteformat;
04644 a.data.ptr = nothing + AST_FRIENDLY_OFFSET;
04645 a.src = "ast_prod";
04646 if (ast_write(chan, &a))
04647 ast_log(LOG_WARNING, "Prodding channel '%s' failed\n", chan->name);
04648 }
04649 return 0;
04650 }
04651
04652 int ast_write_video(struct ast_channel *chan, struct ast_frame *fr)
04653 {
04654 int res;
04655 if (!chan->tech->write_video)
04656 return 0;
04657 res = ast_write(chan, fr);
04658 if (!res)
04659 res = 1;
04660 return res;
04661 }
04662
04663 struct plc_ds {
04664
04665
04666
04667
04668 int16_t *samples_buf;
04669
04670
04671
04672 size_t num_samples;
04673 plc_state_t plc_state;
04674 };
04675
04676 static void plc_ds_destroy(void *data)
04677 {
04678 struct plc_ds *plc = data;
04679 ast_free(plc->samples_buf);
04680 ast_free(plc);
04681 }
04682
04683 static struct ast_datastore_info plc_ds_info = {
04684 .type = "plc",
04685 .destroy = plc_ds_destroy,
04686 };
04687
04688 static void adjust_frame_for_plc(struct ast_channel *chan, struct ast_frame *frame, struct ast_datastore *datastore)
04689 {
04690 int num_new_samples = frame->samples;
04691 struct plc_ds *plc = datastore->data;
04692
04693
04694
04695
04696
04697
04698
04699
04700
04701
04702
04703
04704
04705
04706
04707
04708
04709
04710
04711
04712 if (!num_new_samples) {
04713 return;
04714 }
04715
04716
04717
04718
04719
04720 if (plc->num_samples < num_new_samples) {
04721 ast_free(plc->samples_buf);
04722 plc->samples_buf = ast_calloc(1, (num_new_samples * sizeof(*plc->samples_buf)) + (AST_FRIENDLY_OFFSET * 2));
04723 if (!plc->samples_buf) {
04724 ast_channel_datastore_remove(chan, datastore);
04725 ast_datastore_free(datastore);
04726 return;
04727 }
04728 plc->num_samples = num_new_samples;
04729 }
04730
04731 if (frame->datalen == 0) {
04732 plc_fillin(&plc->plc_state, plc->samples_buf + AST_FRIENDLY_OFFSET, frame->samples);
04733 frame->data.ptr = plc->samples_buf + AST_FRIENDLY_OFFSET;
04734 frame->datalen = num_new_samples * 2;
04735 frame->offset = AST_FRIENDLY_OFFSET * 2;
04736 } else {
04737 plc_rx(&plc->plc_state, frame->data.ptr, frame->samples);
04738 }
04739 }
04740
04741 static void apply_plc(struct ast_channel *chan, struct ast_frame *frame)
04742 {
04743 struct ast_datastore *datastore;
04744 struct plc_ds *plc;
04745
04746 datastore = ast_channel_datastore_find(chan, &plc_ds_info, NULL);
04747 if (datastore) {
04748 plc = datastore->data;
04749 adjust_frame_for_plc(chan, frame, datastore);
04750 return;
04751 }
04752
04753 datastore = ast_datastore_alloc(&plc_ds_info, NULL);
04754 if (!datastore) {
04755 return;
04756 }
04757 plc = ast_calloc(1, sizeof(*plc));
04758 if (!plc) {
04759 ast_datastore_free(datastore);
04760 return;
04761 }
04762 datastore->data = plc;
04763 ast_channel_datastore_add(chan, datastore);
04764 adjust_frame_for_plc(chan, frame, datastore);
04765 }
04766
04767 int ast_write(struct ast_channel *chan, struct ast_frame *fr)
04768 {
04769 int res = -1;
04770 struct ast_frame *f = NULL;
04771 int count = 0;
04772
04773
04774 while(ast_channel_trylock(chan)) {
04775
04776 if(count++ > 10) {
04777 ast_debug(1, "Deadlock avoided for write to channel '%s'\n", chan->name);
04778 return 0;
04779 }
04780 usleep(1);
04781 }
04782
04783 if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan))
04784 goto done;
04785
04786
04787 if (chan->masq) {
04788 ast_channel_unlock(chan);
04789 if (ast_do_masquerade(chan)) {
04790 ast_log(LOG_WARNING, "Failed to perform masquerade\n");
04791 return res;
04792 }
04793 ast_channel_lock(chan);
04794 }
04795 if (chan->masqr) {
04796 res = 0;
04797 goto done;
04798 }
04799
04800
04801
04802 if (!(fr = ast_framehook_list_write_event(chan->framehooks, fr))) {
04803 res = 0;
04804 goto done;
04805 }
04806
04807 if (chan->generatordata && (!fr->src || strcasecmp(fr->src, "ast_prod"))) {
04808 if (ast_test_flag(chan, AST_FLAG_WRITE_INT)) {
04809 ast_deactivate_generator(chan);
04810 } else {
04811 if (fr->frametype == AST_FRAME_DTMF_END) {
04812
04813
04814
04815 ast_clear_flag(chan, AST_FLAG_BLOCKING);
04816 ast_channel_unlock(chan);
04817 res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
04818 ast_channel_lock(chan);
04819 CHECK_BLOCKING(chan);
04820 } else if (fr->frametype == AST_FRAME_CONTROL && fr->subclass.integer == AST_CONTROL_UNHOLD) {
04821
04822 res = (chan->tech->indicate == NULL) ? 0 :
04823 chan->tech->indicate(chan, fr->subclass.integer, fr->data.ptr, fr->datalen);
04824 }
04825 res = 0;
04826 goto done;
04827 }
04828 }
04829
04830 if (chan->fout & DEBUGCHAN_FLAG)
04831 ast_frame_dump(chan->name, fr, ">>");
04832 CHECK_BLOCKING(chan);
04833 switch (fr->frametype) {
04834 case AST_FRAME_CONTROL:
04835 res = (chan->tech->indicate == NULL) ? 0 :
04836 chan->tech->indicate(chan, fr->subclass.integer, fr->data.ptr, fr->datalen);
04837 break;
04838 case AST_FRAME_DTMF_BEGIN:
04839 if (chan->audiohooks) {
04840 struct ast_frame *old_frame = fr;
04841 fr = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_WRITE, fr);
04842 if (old_frame != fr)
04843 f = fr;
04844 }
04845 send_dtmf_event(chan, "Sent", fr->subclass.integer, "Yes", "No");
04846 ast_clear_flag(chan, AST_FLAG_BLOCKING);
04847 ast_channel_unlock(chan);
04848 res = ast_senddigit_begin(chan, fr->subclass.integer);
04849 ast_channel_lock(chan);
04850 CHECK_BLOCKING(chan);
04851 break;
04852 case AST_FRAME_DTMF_END:
04853 if (chan->audiohooks) {
04854 struct ast_frame *new_frame = fr;
04855
04856 new_frame = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_WRITE, fr);
04857 if (new_frame != fr) {
04858 ast_frfree(new_frame);
04859 }
04860 }
04861 send_dtmf_event(chan, "Sent", fr->subclass.integer, "No", "Yes");
04862 ast_clear_flag(chan, AST_FLAG_BLOCKING);
04863 ast_channel_unlock(chan);
04864 res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
04865 ast_channel_lock(chan);
04866 CHECK_BLOCKING(chan);
04867 break;
04868 case AST_FRAME_TEXT:
04869 if (fr->subclass.integer == AST_FORMAT_T140) {
04870 res = (chan->tech->write_text == NULL) ? 0 :
04871 chan->tech->write_text(chan, fr);
04872 } else {
04873 res = (chan->tech->send_text == NULL) ? 0 :
04874 chan->tech->send_text(chan, (char *) fr->data.ptr);
04875 }
04876 break;
04877 case AST_FRAME_HTML:
04878 res = (chan->tech->send_html == NULL) ? 0 :
04879 chan->tech->send_html(chan, fr->subclass.integer, (char *) fr->data.ptr, fr->datalen);
04880 break;
04881 case AST_FRAME_VIDEO:
04882
04883 res = (chan->tech->write_video == NULL) ? 0 :
04884 chan->tech->write_video(chan, fr);
04885 break;
04886 case AST_FRAME_MODEM:
04887 res = (chan->tech->write == NULL) ? 0 :
04888 chan->tech->write(chan, fr);
04889 break;
04890 case AST_FRAME_VOICE:
04891 if (chan->tech->write == NULL)
04892 break;
04893
04894 if (ast_opt_generic_plc && fr->subclass.codec == AST_FORMAT_SLINEAR) {
04895 apply_plc(chan, fr);
04896 }
04897
04898
04899 if (fr->subclass.codec == chan->rawwriteformat) {
04900 f = fr;
04901 } else {
04902
04903
04904
04905
04906
04907
04908 if ((!(fr->subclass.codec & chan->nativeformats)) && (chan->writeformat != fr->subclass.codec)) {
04909 char nf[512];
04910 ast_log(LOG_WARNING, "Codec mismatch on channel %s setting write format to %s from %s native formats %s\n",
04911 chan->name, ast_getformatname(fr->subclass.codec), ast_getformatname(chan->writeformat),
04912 ast_getformatname_multiple(nf, sizeof(nf), chan->nativeformats & AST_FORMAT_AUDIO_MASK));
04913 ast_set_write_format(chan, fr->subclass.codec);
04914 }
04915
04916 f = (chan->writetrans) ? ast_translate(chan->writetrans, fr, 0) : fr;
04917 }
04918
04919 if (!f) {
04920 res = 0;
04921 break;
04922 }
04923
04924 if (chan->audiohooks) {
04925 struct ast_frame *prev = NULL, *new_frame, *cur, *dup;
04926 int freeoldlist = 0;
04927
04928 if (f != fr) {
04929 freeoldlist = 1;
04930 }
04931
04932
04933
04934
04935 for (cur = f; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
04936 new_frame = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_WRITE, cur);
04937
04938
04939
04940 if (new_frame != cur) {
04941
04942
04943
04944
04945 if ((dup = ast_frisolate(new_frame))) {
04946 AST_LIST_NEXT(dup, frame_list) = AST_LIST_NEXT(cur, frame_list);
04947 if (freeoldlist) {
04948 AST_LIST_NEXT(cur, frame_list) = NULL;
04949 ast_frfree(cur);
04950 }
04951 if (new_frame != dup) {
04952 ast_frfree(new_frame);
04953 }
04954 cur = dup;
04955 }
04956 }
04957
04958
04959
04960 if (prev) {
04961 AST_LIST_NEXT(prev, frame_list) = cur;
04962 } else {
04963 f = cur;
04964 }
04965 prev = cur;
04966 }
04967 }
04968
04969
04970
04971
04972
04973 if (chan->monitor && chan->monitor->write_stream) {
04974 struct ast_frame *cur;
04975
04976 for (cur = f; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
04977
04978 #ifndef MONITOR_CONSTANT_DELAY
04979 int jump = chan->insmpl - chan->outsmpl - 4 * cur->samples;
04980 if (jump >= 0) {
04981 jump = calc_monitor_jump((chan->insmpl - chan->outsmpl), ast_format_rate(f->subclass.codec), ast_format_rate(chan->monitor->read_stream->fmt->format));
04982 if (ast_seekstream(chan->monitor->write_stream, jump, SEEK_FORCECUR) == -1)
04983 ast_log(LOG_WARNING, "Failed to perform seek in monitoring write stream, synchronization between the files may be broken\n");
04984 chan->outsmpl += (chan->insmpl - chan->outsmpl) + cur->samples;
04985 } else {
04986 chan->outsmpl += cur->samples;
04987 }
04988 #else
04989 int jump = calc_monitor_jump((chan->insmpl - chan->outsmpl), ast_format_rate(f->subclass.codec), ast_format_rate(chan->monitor->read_stream->fmt->format));
04990 if (jump - MONITOR_DELAY >= 0) {
04991 if (ast_seekstream(chan->monitor->write_stream, jump - cur->samples, SEEK_FORCECUR) == -1)
04992 ast_log(LOG_WARNING, "Failed to perform seek in monitoring write stream, synchronization between the files may be broken\n");
04993 chan->outsmpl += chan->insmpl - chan->outsmpl;
04994 } else {
04995 chan->outsmpl += cur->samples;
04996 }
04997 #endif
04998 if (chan->monitor->state == AST_MONITOR_RUNNING) {
04999 if (ast_writestream(chan->monitor->write_stream, cur) < 0)
05000 ast_log(LOG_WARNING, "Failed to write data to channel monitor write stream\n");
05001 }
05002 }
05003 }
05004
05005
05006
05007
05008 if ((f != fr) && AST_LIST_NEXT(f, frame_list)) {
05009 struct ast_frame *cur, *next;
05010 unsigned int skip = 0;
05011
05012 for (cur = f, next = AST_LIST_NEXT(cur, frame_list);
05013 cur;
05014 cur = next, next = cur ? AST_LIST_NEXT(cur, frame_list) : NULL) {
05015 if (!skip) {
05016 if ((res = chan->tech->write(chan, cur)) < 0) {
05017 chan->_softhangup |= AST_SOFTHANGUP_DEV;
05018 skip = 1;
05019 } else if (next) {
05020
05021
05022
05023 chan->fout = FRAMECOUNT_INC(chan->fout);
05024 }
05025 }
05026 ast_frfree(cur);
05027 }
05028
05029
05030 f = NULL;
05031 } else {
05032 res = chan->tech->write(chan, f);
05033 }
05034 break;
05035 case AST_FRAME_NULL:
05036 case AST_FRAME_IAX:
05037
05038 res = 0;
05039 break;
05040 default:
05041
05042
05043
05044 res = chan->tech->write(chan, fr);
05045 break;
05046 }
05047
05048 if (f && f != fr)
05049 ast_frfree(f);
05050 ast_clear_flag(chan, AST_FLAG_BLOCKING);
05051
05052
05053 if (res < 0) {
05054 chan->_softhangup |= AST_SOFTHANGUP_DEV;
05055 } else {
05056 chan->fout = FRAMECOUNT_INC(chan->fout);
05057 }
05058 done:
05059 if (chan->audiohooks && ast_audiohook_write_list_empty(chan->audiohooks)) {
05060
05061 ast_audiohook_detach_list(chan->audiohooks);
05062 chan->audiohooks = NULL;
05063 }
05064 ast_channel_unlock(chan);
05065 return res;
05066 }
05067
05068 static int set_format(struct ast_channel *chan, format_t fmt, format_t *rawformat, format_t *format,
05069 struct ast_trans_pvt **trans, const int direction)
05070 {
05071 format_t native, native_fmt = ast_best_codec(fmt);
05072 int res;
05073 char from[200], to[200];
05074
05075
05076 fmt &= AST_FORMAT_AUDIO_MASK;
05077
05078 native = chan->nativeformats;
05079
05080 if (!fmt || !native)
05081 return 0;
05082
05083
05084 if (!ast_channel_setoption(chan, direction ? AST_OPTION_FORMAT_WRITE : AST_OPTION_FORMAT_READ, &native_fmt, sizeof(int*), 0)) {
05085 ast_debug(1, "Channel driver natively set channel %s to %s format %s\n", chan->name,
05086 direction ? "write" : "read", ast_getformatname(native_fmt));
05087 chan->nativeformats = *rawformat = *format = native_fmt;
05088 if (*trans) {
05089 ast_translator_free_path(*trans);
05090 }
05091 *trans = NULL;
05092 return 0;
05093 }
05094
05095
05096 if (!direction)
05097
05098 res = ast_translator_best_choice(&fmt, &native);
05099 else
05100
05101 res = ast_translator_best_choice(&native, &fmt);
05102
05103 if (res < 0) {
05104 ast_log(LOG_WARNING, "Unable to find a codec translation path from %s to %s\n",
05105 ast_getformatname_multiple(from, sizeof(from), native),
05106 ast_getformatname_multiple(to, sizeof(to), fmt));
05107 return -1;
05108 }
05109
05110
05111 ast_channel_lock(chan);
05112
05113 if ((*rawformat == native) && (*format == fmt) && ((*rawformat == *format) || (*trans))) {
05114
05115 ast_channel_unlock(chan);
05116 return 0;
05117 }
05118
05119 *rawformat = native;
05120
05121 *format = fmt;
05122
05123 if (*trans) {
05124 ast_translator_free_path(*trans);
05125 *trans = NULL;
05126 }
05127
05128 if (*format == *rawformat) {
05129
05130
05131
05132
05133
05134 res = 0;
05135 } else {
05136 if (!direction) {
05137
05138 *trans = ast_translator_build_path(*format, *rawformat);
05139 } else {
05140
05141 *trans = ast_translator_build_path(*rawformat, *format);
05142 }
05143 res = *trans ? 0 : -1;
05144 }
05145 ast_channel_unlock(chan);
05146 ast_debug(1, "Set channel %s to %s format %s\n", chan->name,
05147 direction ? "write" : "read", ast_getformatname(fmt));
05148 return res;
05149 }
05150
05151 int ast_set_read_format(struct ast_channel *chan, format_t fmt)
05152 {
05153 return set_format(chan, fmt, &chan->rawreadformat, &chan->readformat,
05154 &chan->readtrans, 0);
05155 }
05156
05157 int ast_set_write_format(struct ast_channel *chan, format_t fmt)
05158 {
05159 return set_format(chan, fmt, &chan->rawwriteformat, &chan->writeformat,
05160 &chan->writetrans, 1);
05161 }
05162
05163 const char *ast_channel_reason2str(int reason)
05164 {
05165 switch (reason)
05166 {
05167 case 0:
05168 return "Call Failure (not BUSY, and not NO_ANSWER, maybe Circuit busy or down?)";
05169 case AST_CONTROL_HANGUP:
05170 return "Hangup";
05171 case AST_CONTROL_RING:
05172 return "Local Ring";
05173 case AST_CONTROL_RINGING:
05174 return "Remote end Ringing";
05175 case AST_CONTROL_ANSWER:
05176 return "Remote end has Answered";
05177 case AST_CONTROL_BUSY:
05178 return "Remote end is Busy";
05179 case AST_CONTROL_CONGESTION:
05180 return "Congestion (circuits busy)";
05181 default:
05182 return "Unknown Reason!!";
05183 }
05184 }
05185
05186 static void handle_cause(int cause, int *outstate)
05187 {
05188 if (outstate) {
05189
05190 if (cause == AST_CAUSE_BUSY)
05191 *outstate = AST_CONTROL_BUSY;
05192 else if (cause == AST_CAUSE_CONGESTION)
05193 *outstate = AST_CONTROL_CONGESTION;
05194 else
05195 *outstate = 0;
05196 }
05197 }
05198
05199
05200
05201
05202
05203
05204
05205
05206
05207
05208
05209 static void call_forward_inherit(struct ast_channel *new_chan, struct ast_channel *parent, struct ast_channel *orig)
05210 {
05211 if (!ast_test_flag(parent, AST_FLAG_ZOMBIE) && !ast_check_hangup(parent)) {
05212 struct ast_party_redirecting redirecting;
05213
05214
05215
05216
05217
05218 ast_party_redirecting_init(&redirecting);
05219 ast_channel_lock(orig);
05220 ast_party_redirecting_copy(&redirecting, &orig->redirecting);
05221 ast_channel_unlock(orig);
05222 if (ast_channel_redirecting_macro(orig, parent, &redirecting, 1, 0)) {
05223 ast_channel_update_redirecting(parent, &redirecting, NULL);
05224 }
05225 ast_party_redirecting_free(&redirecting);
05226 }
05227
05228
05229 ast_channel_lock_both(parent, new_chan);
05230 ast_channel_inherit_variables(parent, new_chan);
05231 ast_channel_datastore_inherit(parent, new_chan);
05232 ast_channel_unlock(new_chan);
05233 ast_channel_unlock(parent);
05234 }
05235
05236 struct ast_channel *ast_call_forward(struct ast_channel *caller, struct ast_channel *orig, int *timeout, format_t format, struct outgoing_helper *oh, int *outstate)
05237 {
05238 char tmpchan[256];
05239 struct ast_channel *new_chan = NULL;
05240 char *data, *type;
05241 int cause = 0;
05242 int res;
05243
05244
05245 ast_copy_string(tmpchan, orig->call_forward, sizeof(tmpchan));
05246 if ((data = strchr(tmpchan, '/'))) {
05247 *data++ = '\0';
05248 type = tmpchan;
05249 } else {
05250 const char *forward_context;
05251 ast_channel_lock(orig);
05252 forward_context = pbx_builtin_getvar_helper(orig, "FORWARD_CONTEXT");
05253 snprintf(tmpchan, sizeof(tmpchan), "%s@%s", orig->call_forward, S_OR(forward_context, orig->context));
05254 ast_channel_unlock(orig);
05255 data = tmpchan;
05256 type = "Local";
05257 }
05258 if (!(new_chan = ast_request(type, format, orig, data, &cause))) {
05259 ast_log(LOG_NOTICE, "Unable to create channel for call forward to '%s/%s' (cause = %d)\n", type, data, cause);
05260 handle_cause(cause, outstate);
05261 ast_hangup(orig);
05262 return NULL;
05263 }
05264
05265
05266 if (oh) {
05267 if (oh->vars) {
05268 ast_set_variables(new_chan, oh->vars);
05269 }
05270 if (oh->parent_channel) {
05271 call_forward_inherit(new_chan, oh->parent_channel, orig);
05272 }
05273 if (oh->account) {
05274 ast_channel_lock(new_chan);
05275 ast_cdr_setaccount(new_chan, oh->account);
05276 ast_channel_unlock(new_chan);
05277 }
05278 } else if (caller) {
05279 call_forward_inherit(new_chan, caller, orig);
05280 }
05281
05282 ast_channel_lock_both(orig, new_chan);
05283 ast_copy_flags(new_chan->cdr, orig->cdr, AST_CDR_FLAG_ORIGINATED);
05284 ast_string_field_set(new_chan, accountcode, orig->accountcode);
05285 ast_party_connected_line_copy(&new_chan->connected, &orig->connected);
05286 ast_party_redirecting_copy(&new_chan->redirecting, &orig->redirecting);
05287 ast_channel_unlock(new_chan);
05288 ast_channel_unlock(orig);
05289
05290
05291 res = ast_call(new_chan, data, 0);
05292 if (timeout) {
05293 *timeout = res;
05294 }
05295 if (res) {
05296 ast_log(LOG_NOTICE, "Unable to call forward to channel %s/%s\n", type, (char *)data);
05297 ast_hangup(orig);
05298 ast_hangup(new_chan);
05299 return NULL;
05300 }
05301 ast_hangup(orig);
05302
05303 return new_chan;
05304 }
05305
05306 struct ast_channel *__ast_request_and_dial(const char *type, format_t format, const struct ast_channel *requestor, void *data, int timeout, int *outstate, const char *cid_num, const char *cid_name, struct outgoing_helper *oh)
05307 {
05308 int dummy_outstate;
05309 int cause = 0;
05310 struct ast_channel *chan;
05311 int res = 0;
05312 int last_subclass = 0;
05313 struct ast_party_connected_line connected;
05314
05315 if (outstate)
05316 *outstate = 0;
05317 else
05318 outstate = &dummy_outstate;
05319
05320 chan = ast_request(type, format, requestor, data, &cause);
05321 if (!chan) {
05322 ast_log(LOG_NOTICE, "Unable to request channel %s/%s\n", type, (char *)data);
05323 handle_cause(cause, outstate);
05324 return NULL;
05325 }
05326
05327 if (oh) {
05328 if (oh->vars) {
05329 ast_set_variables(chan, oh->vars);
05330 }
05331 if (!ast_strlen_zero(oh->cid_num) && !ast_strlen_zero(oh->cid_name)) {
05332
05333
05334
05335
05336 cid_num = oh->cid_num;
05337 cid_name = oh->cid_name;
05338 }
05339 if (oh->parent_channel) {
05340
05341 ast_channel_lock_both(oh->parent_channel, chan);
05342 ast_channel_inherit_variables(oh->parent_channel, chan);
05343 ast_channel_datastore_inherit(oh->parent_channel, chan);
05344 ast_channel_unlock(oh->parent_channel);
05345 ast_channel_unlock(chan);
05346 }
05347 if (oh->account) {
05348 ast_channel_lock(chan);
05349 ast_cdr_setaccount(chan, oh->account);
05350 ast_channel_unlock(chan);
05351 }
05352 }
05353
05354
05355
05356
05357
05358
05359
05360
05361
05362 ast_set_callerid(chan, cid_num, cid_name, cid_num);
05363
05364 ast_set_flag(chan->cdr, AST_CDR_FLAG_ORIGINATED);
05365 ast_party_connected_line_set_init(&connected, &chan->connected);
05366 if (cid_num) {
05367 connected.id.number.valid = 1;
05368 connected.id.number.str = (char *) cid_num;
05369 connected.id.number.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
05370 }
05371 if (cid_name) {
05372 connected.id.name.valid = 1;
05373 connected.id.name.str = (char *) cid_name;
05374 connected.id.name.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
05375 }
05376 ast_channel_set_connected_line(chan, &connected, NULL);
05377
05378 if (ast_call(chan, data, 0)) {
05379 ast_log(LOG_NOTICE, "Unable to call channel %s/%s\n", type, (char *)data);
05380 } else {
05381 res = 1;
05382 while (timeout && chan->_state != AST_STATE_UP) {
05383 struct ast_frame *f;
05384 res = ast_waitfor(chan, timeout);
05385 if (res == 0) {
05386 *outstate = AST_CONTROL_RINGING;
05387 break;
05388 }
05389 if (res < 0)
05390 break;
05391 if (timeout > -1)
05392 timeout = res;
05393 if (!ast_strlen_zero(chan->call_forward)) {
05394 if (!(chan = ast_call_forward(NULL, chan, NULL, format, oh, outstate))) {
05395 return NULL;
05396 }
05397 continue;
05398 }
05399
05400 f = ast_read(chan);
05401 if (!f) {
05402 *outstate = AST_CONTROL_HANGUP;
05403 res = 0;
05404 break;
05405 }
05406 if (f->frametype == AST_FRAME_CONTROL) {
05407 switch (f->subclass.integer) {
05408 case AST_CONTROL_RINGING:
05409 *outstate = f->subclass.integer;
05410 break;
05411
05412 case AST_CONTROL_BUSY:
05413 ast_cdr_busy(chan->cdr);
05414 *outstate = f->subclass.integer;
05415 timeout = 0;
05416 break;
05417
05418 case AST_CONTROL_INCOMPLETE:
05419 ast_cdr_failed(chan->cdr);
05420 *outstate = AST_CONTROL_CONGESTION;
05421 timeout = 0;
05422 break;
05423
05424 case AST_CONTROL_CONGESTION:
05425 ast_cdr_failed(chan->cdr);
05426 *outstate = f->subclass.integer;
05427 timeout = 0;
05428 break;
05429
05430 case AST_CONTROL_ANSWER:
05431 ast_cdr_answer(chan->cdr);
05432 *outstate = f->subclass.integer;
05433 timeout = 0;
05434 break;
05435
05436
05437 case AST_CONTROL_PROGRESS:
05438 case AST_CONTROL_PROCEEDING:
05439 case AST_CONTROL_HOLD:
05440 case AST_CONTROL_UNHOLD:
05441 case AST_CONTROL_VIDUPDATE:
05442 case AST_CONTROL_SRCUPDATE:
05443 case AST_CONTROL_SRCCHANGE:
05444 case AST_CONTROL_CONNECTED_LINE:
05445 case AST_CONTROL_REDIRECTING:
05446 case AST_CONTROL_CC:
05447 case -1:
05448 break;
05449
05450 default:
05451 ast_log(LOG_NOTICE, "Don't know what to do with control frame %d\n", f->subclass.integer);
05452 }
05453 last_subclass = f->subclass.integer;
05454 }
05455 ast_frfree(f);
05456 }
05457 }
05458
05459
05460 if (oh) {
05461 if (!ast_strlen_zero(oh->context))
05462 ast_copy_string(chan->context, oh->context, sizeof(chan->context));
05463 if (!ast_strlen_zero(oh->exten))
05464 ast_copy_string(chan->exten, oh->exten, sizeof(chan->exten));
05465 if (oh->priority)
05466 chan->priority = oh->priority;
05467 }
05468 if (chan->_state == AST_STATE_UP)
05469 *outstate = AST_CONTROL_ANSWER;
05470
05471 if (res <= 0) {
05472 ast_channel_lock(chan);
05473 if (AST_CONTROL_RINGING == last_subclass) {
05474 chan->hangupcause = AST_CAUSE_NO_ANSWER;
05475 }
05476 if (!chan->cdr && (chan->cdr = ast_cdr_alloc())) {
05477 ast_cdr_init(chan->cdr, chan);
05478 }
05479 if (chan->cdr) {
05480 char tmp[256];
05481
05482 snprintf(tmp, sizeof(tmp), "%s/%s", type, (char *)data);
05483 ast_cdr_setapp(chan->cdr, "Dial", tmp);
05484 ast_cdr_update(chan);
05485 ast_cdr_start(chan->cdr);
05486 ast_cdr_end(chan->cdr);
05487
05488 if (ast_cdr_disposition(chan->cdr, chan->hangupcause)) {
05489 ast_cdr_failed(chan->cdr);
05490 }
05491 }
05492 ast_channel_unlock(chan);
05493 ast_hangup(chan);
05494 chan = NULL;
05495 }
05496 return chan;
05497 }
05498
05499 struct ast_channel *ast_request_and_dial(const char *type, format_t format, const struct ast_channel *requestor, void *data, int timeout, int *outstate, const char *cidnum, const char *cidname)
05500 {
05501 return __ast_request_and_dial(type, format, requestor, data, timeout, outstate, cidnum, cidname, NULL);
05502 }
05503
05504 static int set_security_requirements(const struct ast_channel *requestor, struct ast_channel *out)
05505 {
05506 int ops[2][2] = {
05507 {AST_OPTION_SECURE_SIGNALING, 0},
05508 {AST_OPTION_SECURE_MEDIA, 0},
05509 };
05510 int i;
05511 struct ast_channel *r = (struct ast_channel *) requestor;
05512 struct ast_datastore *ds;
05513
05514 if (!requestor || !out) {
05515 return 0;
05516 }
05517
05518 ast_channel_lock(r);
05519 if ((ds = ast_channel_datastore_find(r, &secure_call_info, NULL))) {
05520 struct ast_secure_call_store *encrypt = ds->data;
05521 ops[0][1] = encrypt->signaling;
05522 ops[1][1] = encrypt->media;
05523 } else {
05524 ast_channel_unlock(r);
05525 return 0;
05526 }
05527 ast_channel_unlock(r);
05528
05529 for (i = 0; i < 2; i++) {
05530 if (ops[i][1]) {
05531 if (ast_channel_setoption(out, ops[i][0], &ops[i][1], sizeof(ops[i][1]), 0)) {
05532
05533 return -1;
05534 }
05535 } else {
05536
05537 ast_channel_setoption(out, ops[i][0], &ops[i][1], sizeof(ops[i][1]), 0);
05538 }
05539 }
05540
05541 return 0;
05542 }
05543
05544 struct ast_channel *ast_request(const char *type, format_t format, const struct ast_channel *requestor, void *data, int *cause)
05545 {
05546 struct chanlist *chan;
05547 struct ast_channel *c;
05548 format_t capabilities;
05549 format_t fmt;
05550 int res;
05551 int foo;
05552 format_t videoformat = format & AST_FORMAT_VIDEO_MASK;
05553 format_t textformat = format & AST_FORMAT_TEXT_MASK;
05554
05555 if (!cause)
05556 cause = &foo;
05557 *cause = AST_CAUSE_NOTDEFINED;
05558
05559 if (AST_RWLIST_RDLOCK(&backends)) {
05560 ast_log(LOG_WARNING, "Unable to lock technology backend list\n");
05561 return NULL;
05562 }
05563
05564 AST_RWLIST_TRAVERSE(&backends, chan, list) {
05565 if (strcasecmp(type, chan->tech->type))
05566 continue;
05567
05568 capabilities = chan->tech->capabilities;
05569 fmt = format & AST_FORMAT_AUDIO_MASK;
05570 if (fmt) {
05571
05572
05573
05574 res = ast_translator_best_choice(&fmt, &capabilities);
05575 if (res < 0) {
05576 char tmp1[256], tmp2[256];
05577 ast_log(LOG_WARNING, "No translator path exists for channel type %s (native %s) to %s\n", type,
05578 ast_getformatname_multiple(tmp1, sizeof(tmp1), chan->tech->capabilities),
05579 ast_getformatname_multiple(tmp2, sizeof(tmp2), format));
05580 *cause = AST_CAUSE_BEARERCAPABILITY_NOTAVAIL;
05581 AST_RWLIST_UNLOCK(&backends);
05582 return NULL;
05583 }
05584 }
05585 AST_RWLIST_UNLOCK(&backends);
05586 if (!chan->tech->requester)
05587 return NULL;
05588
05589 if (!(c = chan->tech->requester(type, capabilities | videoformat | textformat, requestor, data, cause)))
05590 return NULL;
05591
05592 if (set_security_requirements(requestor, c)) {
05593 ast_log(LOG_WARNING, "Setting security requirements failed\n");
05594 c = ast_channel_release(c);
05595 *cause = AST_CAUSE_BEARERCAPABILITY_NOTAVAIL;
05596 return NULL;
05597 }
05598
05599
05600 return c;
05601 }
05602
05603 ast_log(LOG_WARNING, "No channel type registered for '%s'\n", type);
05604 *cause = AST_CAUSE_NOSUCHDRIVER;
05605 AST_RWLIST_UNLOCK(&backends);
05606
05607 return NULL;
05608 }
05609
05610 int ast_call(struct ast_channel *chan, char *addr, int timeout)
05611 {
05612
05613
05614
05615 int res = -1;
05616
05617 ast_channel_lock(chan);
05618 if (!ast_test_flag(chan, AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
05619 if (chan->cdr) {
05620 ast_set_flag(chan->cdr, AST_CDR_FLAG_DIALED);
05621 }
05622 if (chan->tech->call)
05623 res = chan->tech->call(chan, addr, timeout);
05624 ast_set_flag(chan, AST_FLAG_OUTGOING);
05625 }
05626 ast_channel_unlock(chan);
05627 return res;
05628 }
05629
05630
05631
05632
05633
05634
05635
05636
05637 int ast_transfer(struct ast_channel *chan, char *dest)
05638 {
05639 int res = -1;
05640
05641
05642 ast_channel_lock(chan);
05643 if (!ast_test_flag(chan, AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
05644 if (chan->tech->transfer) {
05645 res = chan->tech->transfer(chan, dest);
05646 if (!res)
05647 res = 1;
05648 } else
05649 res = 0;
05650 }
05651 ast_channel_unlock(chan);
05652
05653 if (res <= 0) {
05654 return res;
05655 }
05656
05657 for (;;) {
05658 struct ast_frame *fr;
05659
05660 res = ast_waitfor(chan, -1);
05661
05662 if (res < 0 || !(fr = ast_read(chan))) {
05663 res = -1;
05664 break;
05665 }
05666
05667 if (fr->frametype == AST_FRAME_CONTROL && fr->subclass.integer == AST_CONTROL_TRANSFER) {
05668 enum ast_control_transfer *message = fr->data.ptr;
05669
05670 if (*message == AST_TRANSFER_SUCCESS) {
05671 res = 1;
05672 } else {
05673 res = -1;
05674 }
05675
05676 ast_frfree(fr);
05677 break;
05678 }
05679
05680 ast_frfree(fr);
05681 }
05682
05683 return res;
05684 }
05685
05686 int ast_readstring(struct ast_channel *c, char *s, int len, int timeout, int ftimeout, char *enders)
05687 {
05688 return ast_readstring_full(c, s, len, timeout, ftimeout, enders, -1, -1);
05689 }
05690
05691 int ast_readstring_full(struct ast_channel *c, char *s, int len, int timeout, int ftimeout, char *enders, int audiofd, int ctrlfd)
05692 {
05693 int pos = 0;
05694 int to = ftimeout;
05695
05696 struct ast_silence_generator *silgen = NULL;
05697
05698
05699 if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c))
05700 return -1;
05701 if (!len)
05702 return -1;
05703 for (;;) {
05704 int d;
05705 if (c->stream) {
05706 d = ast_waitstream_full(c, AST_DIGIT_ANY, audiofd, ctrlfd);
05707 ast_stopstream(c);
05708 if (!silgen && ast_opt_transmit_silence)
05709 silgen = ast_channel_start_silence_generator(c);
05710 usleep(1000);
05711 if (!d)
05712 d = ast_waitfordigit_full(c, to, audiofd, ctrlfd);
05713 } else {
05714 if (!silgen && ast_opt_transmit_silence)
05715 silgen = ast_channel_start_silence_generator(c);
05716 d = ast_waitfordigit_full(c, to, audiofd, ctrlfd);
05717 }
05718 if (d < 0) {
05719 ast_channel_stop_silence_generator(c, silgen);
05720 return AST_GETDATA_FAILED;
05721 }
05722 if (d == 0) {
05723 s[pos] = '\0';
05724 ast_channel_stop_silence_generator(c, silgen);
05725 return AST_GETDATA_TIMEOUT;
05726 }
05727 if (d == 1) {
05728 s[pos] = '\0';
05729 ast_channel_stop_silence_generator(c, silgen);
05730 return AST_GETDATA_INTERRUPTED;
05731 }
05732 if (strchr(enders, d) && (pos == 0)) {
05733 s[pos] = '\0';
05734 ast_channel_stop_silence_generator(c, silgen);
05735 return AST_GETDATA_EMPTY_END_TERMINATED;
05736 }
05737 if (!strchr(enders, d)) {
05738 s[pos++] = d;
05739 }
05740 if (strchr(enders, d) || (pos >= len)) {
05741 s[pos] = '\0';
05742 ast_channel_stop_silence_generator(c, silgen);
05743 return AST_GETDATA_COMPLETE;
05744 }
05745 to = timeout;
05746 }
05747
05748 return 0;
05749 }
05750
05751 int ast_channel_supports_html(struct ast_channel *chan)
05752 {
05753 return (chan->tech->send_html) ? 1 : 0;
05754 }
05755
05756 int ast_channel_sendhtml(struct ast_channel *chan, int subclass, const char *data, int datalen)
05757 {
05758 if (chan->tech->send_html)
05759 return chan->tech->send_html(chan, subclass, data, datalen);
05760 return -1;
05761 }
05762
05763 int ast_channel_sendurl(struct ast_channel *chan, const char *url)
05764 {
05765 return ast_channel_sendhtml(chan, AST_HTML_URL, url, strlen(url) + 1);
05766 }
05767
05768
05769 static int ast_channel_make_compatible_helper(struct ast_channel *from, struct ast_channel *to)
05770 {
05771 format_t src, dst;
05772 int use_slin;
05773
05774
05775 if (from->tech->bridge && from->tech->bridge == to->tech->bridge &&
05776 !ast_channel_setoption(from, AST_OPTION_MAKE_COMPATIBLE, to, sizeof(struct ast_channel *), 0)) {
05777 return 0;
05778 }
05779
05780 if (from->readformat == to->writeformat && from->writeformat == to->readformat) {
05781
05782 return 0;
05783 }
05784
05785
05786 src = from->nativeformats;
05787 dst = to->nativeformats;
05788
05789
05790 if ((src & AST_FORMAT_AUDIO_MASK) == 0 || (dst & AST_FORMAT_AUDIO_MASK) == 0)
05791 return 0;
05792
05793 if (ast_translator_best_choice(&dst, &src) < 0) {
05794 ast_log(LOG_WARNING, "No path to translate from %s to %s\n", from->name, to->name);
05795 return -1;
05796 }
05797
05798
05799
05800
05801
05802
05803
05804 use_slin = (src == AST_FORMAT_SLINEAR || dst == AST_FORMAT_SLINEAR);
05805 if ((src != dst) && (ast_opt_generic_plc || ast_opt_transcode_via_slin) &&
05806 (ast_translate_path_steps(dst, src) != 1 || use_slin))
05807 dst = AST_FORMAT_SLINEAR;
05808 if (ast_set_read_format(from, dst) < 0) {
05809 ast_log(LOG_WARNING, "Unable to set read format on channel %s to %s\n", from->name, ast_getformatname(dst));
05810 return -1;
05811 }
05812 if (ast_set_write_format(to, dst) < 0) {
05813 ast_log(LOG_WARNING, "Unable to set write format on channel %s to %s\n", to->name, ast_getformatname(dst));
05814 return -1;
05815 }
05816 return 0;
05817 }
05818
05819 int ast_channel_make_compatible(struct ast_channel *chan, struct ast_channel *peer)
05820 {
05821
05822 int rc = 0;
05823
05824
05825 rc = ast_channel_make_compatible_helper(chan, peer);
05826
05827 if (rc < 0)
05828 return rc;
05829
05830
05831 rc = ast_channel_make_compatible_helper(peer, chan);
05832
05833 return rc;
05834 }
05835
05836 static int __ast_channel_masquerade(struct ast_channel *original, struct ast_channel *clonechan, struct ast_datastore *xfer_ds)
05837 {
05838 int res = -1;
05839 struct ast_channel *final_orig, *final_clone, *base;
05840
05841 for (;;) {
05842 final_orig = original;
05843 final_clone = clonechan;
05844
05845 ast_channel_lock_both(original, clonechan);
05846
05847 if (ast_test_flag(original, AST_FLAG_ZOMBIE)
05848 || ast_test_flag(clonechan, AST_FLAG_ZOMBIE)) {
05849
05850 ast_log(LOG_WARNING,
05851 "Can't setup masquerade. One or both channels is dead. (%s <-- %s)\n",
05852 original->name, clonechan->name);
05853 ast_channel_unlock(clonechan);
05854 ast_channel_unlock(original);
05855 return -1;
05856 }
05857
05858
05859
05860
05861
05862
05863 if (original->_bridge
05864 && (original->_bridge != ast_bridged_channel(original))
05865 && (original->_bridge->_bridge != original)) {
05866 final_orig = original->_bridge;
05867 }
05868 if (clonechan->_bridge
05869 && (clonechan->_bridge != ast_bridged_channel(clonechan))
05870 && (clonechan->_bridge->_bridge != clonechan)) {
05871 final_clone = clonechan->_bridge;
05872 }
05873 if (final_clone->tech->get_base_channel
05874 && (base = final_clone->tech->get_base_channel(final_clone))) {
05875 final_clone = base;
05876 }
05877
05878 if ((final_orig != original) || (final_clone != clonechan)) {
05879
05880
05881
05882
05883
05884 if (ast_channel_trylock(final_orig)) {
05885 ast_channel_unlock(clonechan);
05886 ast_channel_unlock(original);
05887
05888
05889 continue;
05890 }
05891 if (ast_channel_trylock(final_clone)) {
05892 ast_channel_unlock(final_orig);
05893 ast_channel_unlock(clonechan);
05894 ast_channel_unlock(original);
05895
05896
05897 continue;
05898 }
05899 ast_channel_unlock(clonechan);
05900 ast_channel_unlock(original);
05901 original = final_orig;
05902 clonechan = final_clone;
05903
05904 if (ast_test_flag(original, AST_FLAG_ZOMBIE)
05905 || ast_test_flag(clonechan, AST_FLAG_ZOMBIE)) {
05906
05907 ast_log(LOG_WARNING,
05908 "Can't setup masquerade. One or both channels is dead. (%s <-- %s)\n",
05909 original->name, clonechan->name);
05910 ast_channel_unlock(clonechan);
05911 ast_channel_unlock(original);
05912 return -1;
05913 }
05914 }
05915 break;
05916 }
05917
05918 if (original == clonechan) {
05919 ast_log(LOG_WARNING, "Can't masquerade channel '%s' into itself!\n", original->name);
05920 ast_channel_unlock(clonechan);
05921 ast_channel_unlock(original);
05922 return -1;
05923 }
05924
05925 ast_debug(1, "Planning to masquerade channel %s into the structure of %s\n",
05926 clonechan->name, original->name);
05927
05928 if (!original->masqr && !original->masq && !clonechan->masq && !clonechan->masqr) {
05929 original->masq = clonechan;
05930 clonechan->masqr = original;
05931 if (xfer_ds) {
05932 ast_channel_datastore_add(original, xfer_ds);
05933 }
05934 ast_queue_frame(original, &ast_null_frame);
05935 ast_queue_frame(clonechan, &ast_null_frame);
05936 ast_debug(1, "Done planning to masquerade channel %s into the structure of %s\n", clonechan->name, original->name);
05937 res = 0;
05938 } else if (original->masq) {
05939 ast_log(LOG_WARNING, "%s is already going to masquerade as %s\n",
05940 original->masq->name, original->name);
05941 } else if (original->masqr) {
05942
05943 ast_log(LOG_WARNING, "%s is already going to masquerade as %s\n",
05944 original->name, original->masqr->name);
05945 } else if (clonechan->masq) {
05946 ast_log(LOG_WARNING, "%s is already going to masquerade as %s\n",
05947 clonechan->masq->name, clonechan->name);
05948 } else {
05949 ast_log(LOG_WARNING, "%s is already going to masquerade as %s\n",
05950 clonechan->name, clonechan->masqr->name);
05951 }
05952
05953 ast_channel_unlock(clonechan);
05954 ast_channel_unlock(original);
05955
05956 return res;
05957 }
05958
05959 int ast_channel_masquerade(struct ast_channel *original, struct ast_channel *clone)
05960 {
05961 return __ast_channel_masquerade(original, clone, NULL);
05962 }
05963
05964
05965
05966
05967
05968
05969
05970
05971
05972
05973
05974 static void party_connected_line_copy_transfer(struct ast_party_connected_line *dest, const struct ast_party_connected_line *src)
05975 {
05976 struct ast_party_connected_line connected;
05977
05978 connected = *((struct ast_party_connected_line *) src);
05979 connected.source = AST_CONNECTED_LINE_UPDATE_SOURCE_TRANSFER;
05980
05981
05982 if (!connected.id.name.str) {
05983 connected.id.name.str = "";
05984 }
05985 if (!connected.id.number.str) {
05986 connected.id.number.str = "";
05987 }
05988 if (!connected.id.subaddress.str) {
05989 connected.id.subaddress.str = "";
05990 }
05991 if (!connected.id.tag) {
05992 connected.id.tag = "";
05993 }
05994
05995 ast_party_connected_line_copy(dest, &connected);
05996 }
05997
05998
05999 struct xfer_masquerade_ds {
06000
06001 struct ast_party_connected_line target_id;
06002
06003 struct ast_party_connected_line transferee_id;
06004
06005 int target_held;
06006
06007 int transferee_held;
06008 };
06009
06010
06011
06012
06013
06014
06015
06016
06017
06018
06019 static void xfer_ds_destroy(void *data)
06020 {
06021 struct xfer_masquerade_ds *ds = data;
06022
06023 ast_party_connected_line_free(&ds->target_id);
06024 ast_party_connected_line_free(&ds->transferee_id);
06025 ast_free(ds);
06026 }
06027
06028 static const struct ast_datastore_info xfer_ds_info = {
06029 .type = "xfer_colp",
06030 .destroy = xfer_ds_destroy,
06031 };
06032
06033 int ast_channel_transfer_masquerade(
06034 struct ast_channel *target_chan,
06035 const struct ast_party_connected_line *target_id,
06036 int target_held,
06037 struct ast_channel *transferee_chan,
06038 const struct ast_party_connected_line *transferee_id,
06039 int transferee_held)
06040 {
06041 struct ast_datastore *xfer_ds;
06042 struct xfer_masquerade_ds *xfer_colp;
06043 int res;
06044
06045 xfer_ds = ast_datastore_alloc(&xfer_ds_info, NULL);
06046 if (!xfer_ds) {
06047 return -1;
06048 }
06049
06050 xfer_colp = ast_calloc(1, sizeof(*xfer_colp));
06051 if (!xfer_colp) {
06052 ast_datastore_free(xfer_ds);
06053 return -1;
06054 }
06055 party_connected_line_copy_transfer(&xfer_colp->target_id, target_id);
06056 xfer_colp->target_held = target_held;
06057 party_connected_line_copy_transfer(&xfer_colp->transferee_id, transferee_id);
06058 xfer_colp->transferee_held = transferee_held;
06059 xfer_ds->data = xfer_colp;
06060
06061 res = __ast_channel_masquerade(target_chan, transferee_chan, xfer_ds);
06062 if (res) {
06063 ast_datastore_free(xfer_ds);
06064 }
06065 return res;
06066 }
06067
06068
06069
06070
06071
06072 static void __ast_change_name_nolink(struct ast_channel *chan, const char *newname)
06073 {
06074 ast_manager_event(chan, EVENT_FLAG_CALL, "Rename", "Channel: %s\r\nNewname: %s\r\nUniqueid: %s\r\n", chan->name, newname, chan->uniqueid);
06075 ast_string_field_set(chan, name, newname);
06076 }
06077
06078 void ast_change_name(struct ast_channel *chan, const char *newname)
06079 {
06080
06081 ao2_unlink(channels, chan);
06082 ast_channel_lock(chan);
06083 __ast_change_name_nolink(chan, newname);
06084 ast_channel_unlock(chan);
06085 ao2_link(channels, chan);
06086 }
06087
06088 void ast_channel_inherit_variables(const struct ast_channel *parent, struct ast_channel *child)
06089 {
06090 struct ast_var_t *current, *newvar;
06091 const char *varname;
06092
06093 AST_LIST_TRAVERSE(&parent->varshead, current, entries) {
06094 int vartype = 0;
06095
06096 varname = ast_var_full_name(current);
06097 if (!varname)
06098 continue;
06099
06100 if (varname[0] == '_') {
06101 vartype = 1;
06102 if (varname[1] == '_')
06103 vartype = 2;
06104 }
06105
06106 switch (vartype) {
06107 case 1:
06108 newvar = ast_var_assign(&varname[1], ast_var_value(current));
06109 if (newvar) {
06110 AST_LIST_INSERT_TAIL(&child->varshead, newvar, entries);
06111 ast_debug(1, "Copying soft-transferable variable %s.\n", ast_var_name(newvar));
06112 }
06113 break;
06114 case 2:
06115 newvar = ast_var_assign(varname, ast_var_value(current));
06116 if (newvar) {
06117 AST_LIST_INSERT_TAIL(&child->varshead, newvar, entries);
06118 ast_debug(1, "Copying hard-transferable variable %s.\n", ast_var_name(newvar));
06119 }
06120 break;
06121 default:
06122 ast_debug(1, "Not copying variable %s.\n", ast_var_name(current));
06123 break;
06124 }
06125 }
06126 }
06127
06128
06129
06130
06131
06132
06133
06134
06135
06136
06137 static void clone_variables(struct ast_channel *original, struct ast_channel *clonechan)
06138 {
06139 struct ast_var_t *current, *newvar;
06140
06141
06142 if (AST_LIST_FIRST(&clonechan->varshead))
06143 AST_LIST_APPEND_LIST(&original->varshead, &clonechan->varshead, entries);
06144
06145
06146
06147 AST_LIST_TRAVERSE(&original->varshead, current, entries) {
06148 newvar = ast_var_assign(current->name, current->value);
06149 if (newvar)
06150 AST_LIST_INSERT_TAIL(&clonechan->varshead, newvar, entries);
06151 }
06152 }
06153
06154
06155
06156
06157
06158
06159
06160
06161
06162
06163
06164
06165
06166
06167 static const char *oldest_linkedid(const char *a, const char *b)
06168 {
06169 const char *satime, *saseq;
06170 const char *sbtime, *sbseq;
06171 const char *dash;
06172
06173 unsigned int atime, aseq, btime, bseq;
06174
06175 if (ast_strlen_zero(a))
06176 return b;
06177
06178 if (ast_strlen_zero(b))
06179 return a;
06180
06181 satime = a;
06182 sbtime = b;
06183
06184
06185 if ((dash = strrchr(satime, '-'))) {
06186 satime = dash+1;
06187 }
06188 if ((dash = strrchr(sbtime, '-'))) {
06189 sbtime = dash+1;
06190 }
06191
06192
06193 saseq = strchr(satime, '.');
06194 sbseq = strchr(sbtime, '.');
06195 if (!saseq || !sbseq)
06196 return NULL;
06197 saseq++;
06198 sbseq++;
06199
06200
06201 atime = atoi(satime);
06202 btime = atoi(sbtime);
06203 aseq = atoi(saseq);
06204 bseq = atoi(sbseq);
06205
06206
06207 if (atime == btime) {
06208 return (aseq < bseq) ? a : b;
06209 }
06210 else {
06211 return (atime < btime) ? a : b;
06212 }
06213 }
06214
06215
06216
06217 static void ast_channel_change_linkedid(struct ast_channel *chan, const char *linkedid)
06218 {
06219
06220 if (!ast_strlen_zero(chan->linkedid) && 0 != strcmp(chan->linkedid, linkedid)) {
06221 ast_cel_check_retire_linkedid(chan);
06222 }
06223
06224 ast_string_field_set(chan, linkedid, linkedid);
06225 }
06226
06227
06228
06229
06230
06231
06232 void ast_channel_set_linkgroup(struct ast_channel *chan, struct ast_channel *peer)
06233 {
06234 const char* linkedid=NULL;
06235 struct ast_channel *bridged;
06236
06237 linkedid = oldest_linkedid(chan->linkedid, peer->linkedid);
06238 linkedid = oldest_linkedid(linkedid, chan->uniqueid);
06239 linkedid = oldest_linkedid(linkedid, peer->uniqueid);
06240 if (chan->_bridge) {
06241 bridged = ast_bridged_channel(chan);
06242 if (bridged != peer) {
06243 linkedid = oldest_linkedid(linkedid, bridged->linkedid);
06244 linkedid = oldest_linkedid(linkedid, bridged->uniqueid);
06245 }
06246 }
06247 if (peer->_bridge) {
06248 bridged = ast_bridged_channel(peer);
06249 if (bridged != chan) {
06250 linkedid = oldest_linkedid(linkedid, bridged->linkedid);
06251 linkedid = oldest_linkedid(linkedid, bridged->uniqueid);
06252 }
06253 }
06254
06255
06256 linkedid = ast_strdupa(linkedid);
06257
06258 ast_channel_change_linkedid(chan, linkedid);
06259 ast_channel_change_linkedid(peer, linkedid);
06260 if (chan->_bridge) {
06261 bridged = ast_bridged_channel(chan);
06262 if (bridged != peer) {
06263 ast_channel_change_linkedid(bridged, linkedid);
06264 }
06265 }
06266 if (peer->_bridge) {
06267 bridged = ast_bridged_channel(peer);
06268 if (bridged != chan) {
06269 ast_channel_change_linkedid(bridged, linkedid);
06270 }
06271 }
06272 }
06273
06274
06275 static void ast_set_owners_and_peers(struct ast_channel *chan1,
06276 struct ast_channel *chan2)
06277 {
06278 if (!ast_strlen_zero(chan1->accountcode) && ast_strlen_zero(chan2->peeraccount)) {
06279 ast_log(LOG_DEBUG, "setting peeraccount to %s for %s from data on channel %s\n",
06280 chan1->accountcode, chan2->name, chan1->name);
06281 ast_string_field_set(chan2, peeraccount, chan1->accountcode);
06282 }
06283 if (!ast_strlen_zero(chan2->accountcode) && ast_strlen_zero(chan1->peeraccount)) {
06284 ast_log(LOG_DEBUG, "setting peeraccount to %s for %s from data on channel %s\n",
06285 chan2->accountcode, chan1->name, chan2->name);
06286 ast_string_field_set(chan1, peeraccount, chan2->accountcode);
06287 }
06288 if (!ast_strlen_zero(chan1->peeraccount) && ast_strlen_zero(chan2->accountcode)) {
06289 ast_log(LOG_DEBUG, "setting accountcode to %s for %s from data on channel %s\n",
06290 chan1->peeraccount, chan2->name, chan1->name);
06291 ast_string_field_set(chan2, accountcode, chan1->peeraccount);
06292 }
06293 if (!ast_strlen_zero(chan2->peeraccount) && ast_strlen_zero(chan1->accountcode)) {
06294 ast_log(LOG_DEBUG, "setting accountcode to %s for %s from data on channel %s\n",
06295 chan2->peeraccount, chan1->name, chan2->name);
06296 ast_string_field_set(chan1, accountcode, chan2->peeraccount);
06297 }
06298 if (0 != strcmp(chan1->accountcode, chan2->peeraccount)) {
06299 ast_log(LOG_DEBUG, "changing peeraccount from %s to %s on %s to match channel %s\n",
06300 chan2->peeraccount, chan1->peeraccount, chan2->name, chan1->name);
06301 ast_string_field_set(chan2, peeraccount, chan1->accountcode);
06302 }
06303 if (0 != strcmp(chan2->accountcode, chan1->peeraccount)) {
06304 ast_log(LOG_DEBUG, "changing peeraccount from %s to %s on %s to match channel %s\n",
06305 chan1->peeraccount, chan2->peeraccount, chan1->name, chan2->name);
06306 ast_string_field_set(chan1, peeraccount, chan2->accountcode);
06307 }
06308 }
06309
06310
06311
06312
06313 static void report_new_callerid(struct ast_channel *chan)
06314 {
06315 int pres;
06316
06317 pres = ast_party_id_presentation(&chan->caller.id);
06318 ast_manager_event(chan, EVENT_FLAG_CALL, "NewCallerid",
06319 "Channel: %s\r\n"
06320 "CallerIDNum: %s\r\n"
06321 "CallerIDName: %s\r\n"
06322 "Uniqueid: %s\r\n"
06323 "CID-CallingPres: %d (%s)\r\n",
06324 chan->name,
06325 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, ""),
06326 S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, ""),
06327 chan->uniqueid,
06328 pres,
06329 ast_describe_caller_presentation(pres)
06330 );
06331 }
06332
06333
06334
06335
06336
06337
06338
06339
06340
06341
06342
06343 static void masquerade_colp_transfer(struct ast_channel *transferee, struct xfer_masquerade_ds *colp)
06344 {
06345 struct ast_control_read_action_payload *frame_payload;
06346 int payload_size;
06347 int frame_size;
06348 unsigned char connected_line_data[1024];
06349
06350
06351 if (colp->target_held) {
06352 ast_queue_control(transferee, AST_CONTROL_UNHOLD);
06353 }
06354
06355
06356
06357
06358
06359
06360
06361
06362
06363
06364 payload_size = ast_connected_line_build_data(connected_line_data,
06365 sizeof(connected_line_data), &colp->target_id, NULL);
06366 if (payload_size != -1) {
06367 frame_size = payload_size + sizeof(*frame_payload);
06368 frame_payload = alloca(frame_size);
06369 frame_payload->action = AST_FRAME_READ_ACTION_CONNECTED_LINE_MACRO;
06370 frame_payload->payload_size = payload_size;
06371 memcpy(frame_payload->payload, connected_line_data, payload_size);
06372 ast_queue_control_data(transferee, AST_CONTROL_READ_ACTION, frame_payload,
06373 frame_size);
06374 }
06375
06376
06377
06378
06379
06380
06381 ast_channel_queue_connected_line_update(transferee, &colp->transferee_id, NULL);
06382 }
06383
06384
06385
06386
06387
06388
06389
06390
06391 int ast_do_masquerade(struct ast_channel *original)
06392 {
06393 format_t x;
06394 int i;
06395 int res=0;
06396 int origstate;
06397 int visible_indication;
06398 struct ast_frame *current;
06399 const struct ast_channel_tech *t;
06400 void *t_pvt;
06401 union {
06402 struct ast_party_dialed dialed;
06403 struct ast_party_caller caller;
06404 struct ast_party_connected_line connected;
06405 struct ast_party_redirecting redirecting;
06406 } exchange;
06407 struct ast_channel *clonechan, *chans[2];
06408 struct ast_channel *bridged;
06409 struct ast_cdr *cdr;
06410 struct ast_datastore *xfer_ds;
06411 struct xfer_masquerade_ds *xfer_colp;
06412 format_t rformat = original->readformat;
06413 format_t wformat = original->writeformat;
06414 char newn[AST_CHANNEL_NAME];
06415 char orig[AST_CHANNEL_NAME];
06416 char masqn[AST_CHANNEL_NAME];
06417 char zombn[AST_CHANNEL_NAME];
06418
06419
06420
06421
06422
06423
06424
06425
06426
06427
06428
06429
06430
06431
06432
06433 ao2_lock(channels);
06434
06435
06436 ast_channel_lock(original);
06437
06438
06439
06440
06441
06442
06443
06444
06445
06446
06447 while ((clonechan = original->masq) && ast_channel_trylock(clonechan)) {
06448
06449
06450
06451
06452
06453
06454
06455
06456 CHANNEL_DEADLOCK_AVOIDANCE(original);
06457 }
06458
06459
06460
06461
06462
06463
06464 if (!clonechan) {
06465
06466 ast_channel_unlock(original);
06467 ao2_unlock(channels);
06468 return 0;
06469 }
06470
06471
06472 xfer_ds = ast_channel_datastore_find(original, &xfer_ds_info, NULL);
06473 if (xfer_ds) {
06474 ast_channel_datastore_remove(original, xfer_ds);
06475 xfer_colp = xfer_ds->data;
06476 } else {
06477 xfer_colp = NULL;
06478 }
06479
06480
06481
06482
06483
06484 if (xfer_colp && xfer_colp->transferee_held) {
06485 ast_indicate(clonechan, AST_CONTROL_UNHOLD);
06486 }
06487
06488
06489 original->masq = NULL;
06490 clonechan->masqr = NULL;
06491
06492
06493 ao2_unlink(channels, original);
06494 ao2_unlink(channels, clonechan);
06495
06496 ast_debug(4, "Actually Masquerading %s(%d) into the structure of %s(%d)\n",
06497 clonechan->name, clonechan->_state, original->name, original->_state);
06498
06499
06500
06501
06502
06503 visible_indication = original->visible_indication;
06504 ast_indicate(original, -1);
06505
06506 chans[0] = clonechan;
06507 chans[1] = original;
06508 ast_manager_event_multichan(EVENT_FLAG_CALL, "Masquerade", 2, chans,
06509 "Clone: %s\r\n"
06510 "CloneState: %s\r\n"
06511 "Original: %s\r\n"
06512 "OriginalState: %s\r\n",
06513 clonechan->name, ast_state2str(clonechan->_state), original->name, ast_state2str(original->_state));
06514
06515
06516
06517 free_translation(clonechan);
06518 free_translation(original);
06519
06520
06521 ast_copy_string(orig, original->name, sizeof(orig));
06522
06523 ast_copy_string(newn, clonechan->name, sizeof(newn));
06524
06525 snprintf(masqn, sizeof(masqn), "%s<MASQ>", newn);
06526
06527
06528 __ast_change_name_nolink(clonechan, masqn);
06529
06530
06531 __ast_change_name_nolink(original, newn);
06532
06533
06534 ast_channel_set_linkgroup(original, clonechan);
06535
06536
06537 t = original->tech;
06538 original->tech = clonechan->tech;
06539 clonechan->tech = t;
06540
06541
06542 cdr = original->cdr;
06543 original->cdr = clonechan->cdr;
06544 clonechan->cdr = cdr;
06545
06546 t_pvt = original->tech_pvt;
06547 original->tech_pvt = clonechan->tech_pvt;
06548 clonechan->tech_pvt = t_pvt;
06549
06550
06551 for (i = 0; i < 2; i++) {
06552 x = original->alertpipe[i];
06553 original->alertpipe[i] = clonechan->alertpipe[i];
06554 clonechan->alertpipe[i] = x;
06555 }
06556
06557
06558
06559
06560
06561
06562
06563
06564
06565
06566
06567
06568 {
06569 AST_LIST_HEAD_NOLOCK(, ast_frame) tmp_readq;
06570 AST_LIST_HEAD_SET_NOLOCK(&tmp_readq, NULL);
06571
06572 AST_LIST_APPEND_LIST(&tmp_readq, &original->readq, frame_list);
06573 AST_LIST_APPEND_LIST(&original->readq, &clonechan->readq, frame_list);
06574
06575 while ((current = AST_LIST_REMOVE_HEAD(&tmp_readq, frame_list))) {
06576 AST_LIST_INSERT_TAIL(&original->readq, current, frame_list);
06577 if (original->alertpipe[1] > -1) {
06578 int poke = 0;
06579
06580 if (write(original->alertpipe[1], &poke, sizeof(poke)) < 0) {
06581 ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
06582 }
06583 }
06584 }
06585 }
06586
06587
06588 x = original->rawreadformat;
06589 original->rawreadformat = clonechan->rawreadformat;
06590 clonechan->rawreadformat = x;
06591 x = original->rawwriteformat;
06592 original->rawwriteformat = clonechan->rawwriteformat;
06593 clonechan->rawwriteformat = x;
06594
06595 clonechan->_softhangup = AST_SOFTHANGUP_DEV;
06596
06597
06598
06599
06600
06601 origstate = original->_state;
06602 original->_state = clonechan->_state;
06603 clonechan->_state = origstate;
06604
06605 if (clonechan->tech->fixup && clonechan->tech->fixup(original, clonechan)) {
06606 ast_log(LOG_WARNING, "Fixup failed on channel %s, strange things may happen.\n", clonechan->name);
06607 }
06608
06609
06610 if (clonechan->tech->hangup && clonechan->tech->hangup(clonechan)) {
06611 ast_log(LOG_WARNING, "Hangup failed! Strange things may happen!\n");
06612 res = -1;
06613 goto done;
06614 }
06615
06616
06617
06618
06619
06620 clonechan->tech = &ast_kill_tech;
06621
06622
06623 snprintf(zombn, sizeof(zombn), "%s<ZOMBIE>", orig);
06624 __ast_change_name_nolink(clonechan, zombn);
06625
06626
06627 t_pvt = original->monitor;
06628 original->monitor = clonechan->monitor;
06629 clonechan->monitor = t_pvt;
06630
06631
06632 ast_string_field_set(original, language, clonechan->language);
06633
06634 for (x = 0; x < AST_MAX_FDS; x++) {
06635 if (x != AST_GENERATOR_FD)
06636 ast_channel_set_fd(original, x, clonechan->fds[x]);
06637 }
06638
06639 ast_app_group_update(clonechan, original);
06640
06641
06642 if (AST_LIST_FIRST(&clonechan->datastores)) {
06643 struct ast_datastore *ds;
06644
06645
06646
06647 AST_LIST_TRAVERSE_SAFE_BEGIN(&clonechan->datastores, ds, entry) {
06648 if (ds->info->chan_fixup)
06649 ds->info->chan_fixup(ds->data, clonechan, original);
06650 }
06651 AST_LIST_TRAVERSE_SAFE_END;
06652 AST_LIST_APPEND_LIST(&original->datastores, &clonechan->datastores, entry);
06653 }
06654
06655 ast_autochan_new_channel(clonechan, original);
06656
06657 clone_variables(original, clonechan);
06658
06659 original->adsicpe = clonechan->adsicpe;
06660
06661
06662
06663
06664
06665 ast_set_flag(original, ast_test_flag(clonechan, AST_FLAG_EXCEPTION | AST_FLAG_OUTGOING));
06666 original->fdno = clonechan->fdno;
06667
06668
06669
06670
06671
06672
06673
06674
06675 exchange.dialed = original->dialed;
06676 original->dialed = clonechan->dialed;
06677 clonechan->dialed = exchange.dialed;
06678
06679 exchange.caller = original->caller;
06680 original->caller = clonechan->caller;
06681 clonechan->caller = exchange.caller;
06682
06683 exchange.connected = original->connected;
06684 original->connected = clonechan->connected;
06685 clonechan->connected = exchange.connected;
06686
06687 exchange.redirecting = original->redirecting;
06688 original->redirecting = clonechan->redirecting;
06689 clonechan->redirecting = exchange.redirecting;
06690
06691 report_new_callerid(original);
06692
06693
06694 ast_channel_set_fd(original, AST_TIMING_FD, original->timingfd);
06695
06696
06697 original->nativeformats = clonechan->nativeformats;
06698
06699
06700
06701
06702
06703 ast_set_write_format(original, wformat);
06704
06705
06706 ast_set_read_format(original, rformat);
06707
06708
06709 ast_string_field_set(original, musicclass, clonechan->musicclass);
06710
06711
06712 ast_string_field_set(original, accountcode, S_OR(clonechan->accountcode, ""));
06713 if (original->_bridge) {
06714
06715 ast_string_field_set(original->_bridge, peeraccount, S_OR(clonechan->accountcode, ""));
06716 ast_cel_report_event(original, AST_CEL_BRIDGE_UPDATE, NULL, NULL, NULL);
06717 }
06718
06719 ast_debug(1, "Putting channel %s in %s/%s formats\n", original->name,
06720 ast_getformatname(wformat), ast_getformatname(rformat));
06721
06722
06723
06724 if (original->tech->fixup) {
06725 if (original->tech->fixup(clonechan, original)) {
06726 ast_log(LOG_WARNING, "Channel for type '%s' could not fixup channel %s\n",
06727 original->tech->type, original->name);
06728 res = -1;
06729 goto done;
06730 }
06731 } else
06732 ast_log(LOG_WARNING, "Channel type '%s' does not have a fixup routine (for %s)! Bad things may happen.\n",
06733 original->tech->type, original->name);
06734
06735
06736
06737
06738
06739
06740
06741
06742
06743 if (visible_indication) {
06744 ast_indicate(original, visible_indication);
06745 }
06746
06747
06748
06749
06750 if (ast_test_flag(clonechan, AST_FLAG_ZOMBIE)) {
06751 ast_debug(1, "Destroying channel clone '%s'\n", clonechan->name);
06752 ast_channel_unlock(clonechan);
06753 ast_manager_event(clonechan, EVENT_FLAG_CALL, "Hangup",
06754 "Channel: %s\r\n"
06755 "Uniqueid: %s\r\n"
06756 "Cause: %d\r\n"
06757 "Cause-txt: %s\r\n",
06758 clonechan->name,
06759 clonechan->uniqueid,
06760 clonechan->hangupcause,
06761 ast_cause2str(clonechan->hangupcause)
06762 );
06763 clonechan = ast_channel_release(clonechan);
06764 } else {
06765 ast_debug(1, "Released clone lock on '%s'\n", clonechan->name);
06766 ast_set_flag(clonechan, AST_FLAG_ZOMBIE);
06767 ast_queue_frame(clonechan, &ast_null_frame);
06768 }
06769
06770
06771 if (ast_test_flag(original, AST_FLAG_BLOCKING))
06772 pthread_kill(original->blocker, SIGURG);
06773 ast_debug(1, "Done Masquerading %s (%d)\n", original->name, original->_state);
06774
06775 if ((bridged = ast_bridged_channel(original))) {
06776 ast_channel_lock(bridged);
06777 ast_indicate(bridged, AST_CONTROL_SRCCHANGE);
06778 ast_channel_unlock(bridged);
06779 }
06780 ast_indicate(original, AST_CONTROL_SRCCHANGE);
06781
06782 if (xfer_colp) {
06783
06784
06785
06786
06787
06788 masquerade_colp_transfer(original, xfer_colp);
06789 }
06790
06791 done:
06792 if (xfer_ds) {
06793 ast_datastore_free(xfer_ds);
06794 }
06795
06796 if (clonechan) {
06797 ast_channel_unlock(original);
06798 ast_channel_unlock(clonechan);
06799 ao2_link(channels, clonechan);
06800 ao2_link(channels, original);
06801 } else {
06802 ast_channel_unlock(original);
06803 ao2_link(channels, original);
06804 }
06805
06806 ao2_unlock(channels);
06807
06808 return res;
06809 }
06810
06811 void ast_set_callerid(struct ast_channel *chan, const char *cid_num, const char *cid_name, const char *cid_ani)
06812 {
06813 ast_channel_lock(chan);
06814
06815 if (cid_num) {
06816 chan->caller.id.number.valid = 1;
06817 ast_free(chan->caller.id.number.str);
06818 chan->caller.id.number.str = ast_strdup(cid_num);
06819 }
06820 if (cid_name) {
06821 chan->caller.id.name.valid = 1;
06822 ast_free(chan->caller.id.name.str);
06823 chan->caller.id.name.str = ast_strdup(cid_name);
06824 }
06825 if (cid_ani) {
06826 chan->caller.ani.number.valid = 1;
06827 ast_free(chan->caller.ani.number.str);
06828 chan->caller.ani.number.str = ast_strdup(cid_ani);
06829 }
06830 if (chan->cdr) {
06831 ast_cdr_setcid(chan->cdr, chan);
06832 }
06833
06834 report_new_callerid(chan);
06835
06836 ast_channel_unlock(chan);
06837 }
06838
06839 void ast_channel_set_caller(struct ast_channel *chan, const struct ast_party_caller *caller, const struct ast_set_party_caller *update)
06840 {
06841 if (&chan->caller == caller) {
06842
06843 return;
06844 }
06845
06846 ast_channel_lock(chan);
06847 ast_party_caller_set(&chan->caller, caller, update);
06848 ast_channel_unlock(chan);
06849 }
06850
06851 void ast_channel_set_caller_event(struct ast_channel *chan, const struct ast_party_caller *caller, const struct ast_set_party_caller *update)
06852 {
06853 const char *pre_set_number;
06854 const char *pre_set_name;
06855
06856 if (&chan->caller == caller) {
06857
06858 return;
06859 }
06860
06861 ast_channel_lock(chan);
06862 pre_set_number =
06863 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL);
06864 pre_set_name = S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, NULL);
06865 ast_party_caller_set(&chan->caller, caller, update);
06866 if (S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL)
06867 != pre_set_number
06868 || S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, NULL)
06869 != pre_set_name) {
06870
06871 report_new_callerid(chan);
06872 }
06873 if (chan->cdr) {
06874 ast_cdr_setcid(chan->cdr, chan);
06875 }
06876 ast_channel_unlock(chan);
06877 }
06878
06879 int ast_setstate(struct ast_channel *chan, enum ast_channel_state state)
06880 {
06881 int oldstate = chan->_state;
06882 char name[AST_CHANNEL_NAME], *dashptr;
06883
06884 if (oldstate == state)
06885 return 0;
06886
06887 ast_copy_string(name, chan->name, sizeof(name));
06888 if ((dashptr = strrchr(name, '-'))) {
06889 *dashptr = '\0';
06890 }
06891
06892 chan->_state = state;
06893
06894
06895
06896
06897 ast_devstate_changed_literal(AST_DEVICE_UNKNOWN, name);
06898
06899
06900 ast_manager_event(chan, EVENT_FLAG_CALL, "Newstate",
06901 "Channel: %s\r\n"
06902 "ChannelState: %d\r\n"
06903 "ChannelStateDesc: %s\r\n"
06904 "CallerIDNum: %s\r\n"
06905 "CallerIDName: %s\r\n"
06906 "ConnectedLineNum: %s\r\n"
06907 "ConnectedLineName: %s\r\n"
06908 "Uniqueid: %s\r\n",
06909 chan->name, chan->_state, ast_state2str(chan->_state),
06910 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, ""),
06911 S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, ""),
06912 S_COR(chan->connected.id.number.valid, chan->connected.id.number.str, ""),
06913 S_COR(chan->connected.id.name.valid, chan->connected.id.name.str, ""),
06914 chan->uniqueid);
06915
06916 return 0;
06917 }
06918
06919
06920 struct ast_channel *ast_bridged_channel(struct ast_channel *chan)
06921 {
06922 struct ast_channel *bridged;
06923 bridged = chan->_bridge;
06924 if (bridged && bridged->tech->bridged_channel)
06925 bridged = bridged->tech->bridged_channel(chan, bridged);
06926 return bridged;
06927 }
06928
06929 static void bridge_playfile(struct ast_channel *chan, struct ast_channel *peer, const char *sound, int remain)
06930 {
06931 int min = 0, sec = 0, check;
06932
06933 check = ast_autoservice_start(peer);
06934 if (check)
06935 return;
06936
06937 if (remain > 0) {
06938 if (remain / 60 > 1) {
06939 min = remain / 60;
06940 sec = remain % 60;
06941 } else {
06942 sec = remain;
06943 }
06944 }
06945
06946 if (!strcmp(sound,"timeleft")) {
06947 ast_stream_and_wait(chan, "vm-youhave", "");
06948 if (min) {
06949 ast_say_number(chan, min, AST_DIGIT_ANY, chan->language, NULL);
06950 ast_stream_and_wait(chan, "queue-minutes", "");
06951 }
06952 if (sec) {
06953 ast_say_number(chan, sec, AST_DIGIT_ANY, chan->language, NULL);
06954 ast_stream_and_wait(chan, "queue-seconds", "");
06955 }
06956 } else {
06957 ast_stream_and_wait(chan, sound, "");
06958 }
06959
06960 ast_autoservice_stop(peer);
06961 }
06962
06963 static enum ast_bridge_result ast_generic_bridge(struct ast_channel *c0, struct ast_channel *c1,
06964 struct ast_bridge_config *config, struct ast_frame **fo,
06965 struct ast_channel **rc)
06966 {
06967
06968 struct ast_channel *cs[3];
06969 struct ast_frame *f;
06970 enum ast_bridge_result res = AST_BRIDGE_COMPLETE;
06971 format_t o0nativeformats;
06972 format_t o1nativeformats;
06973 int watch_c0_dtmf;
06974 int watch_c1_dtmf;
06975 void *pvt0, *pvt1;
06976
06977 int frame_put_in_jb = 0;
06978 int jb_in_use;
06979 int to;
06980
06981 cs[0] = c0;
06982 cs[1] = c1;
06983 pvt0 = c0->tech_pvt;
06984 pvt1 = c1->tech_pvt;
06985 o0nativeformats = c0->nativeformats;
06986 o1nativeformats = c1->nativeformats;
06987 watch_c0_dtmf = config->flags & AST_BRIDGE_DTMF_CHANNEL_0;
06988 watch_c1_dtmf = config->flags & AST_BRIDGE_DTMF_CHANNEL_1;
06989
06990
06991 jb_in_use = ast_jb_do_usecheck(c0, c1);
06992 if (jb_in_use)
06993 ast_jb_empty_and_reset(c0, c1);
06994
06995 ast_poll_channel_add(c0, c1);
06996
06997 if (config->feature_timer > 0 && ast_tvzero(config->nexteventts)) {
06998
06999
07000
07001 config->nexteventts = ast_tvadd(ast_tvnow(), ast_samp2tv(config->feature_timer, 1000));
07002 }
07003
07004 for (;;) {
07005 struct ast_channel *who, *other;
07006
07007 if ((c0->tech_pvt != pvt0) || (c1->tech_pvt != pvt1) ||
07008 (o0nativeformats != c0->nativeformats) ||
07009 (o1nativeformats != c1->nativeformats)) {
07010
07011 res = AST_BRIDGE_RETRY;
07012 break;
07013 }
07014 if (config->nexteventts.tv_sec) {
07015 to = ast_tvdiff_ms(config->nexteventts, ast_tvnow());
07016 if (to <= 0) {
07017 if (config->timelimit && !config->feature_timer && !ast_test_flag(config, AST_FEATURE_WARNING_ACTIVE)) {
07018 res = AST_BRIDGE_RETRY;
07019
07020 ast_set_flag(config, AST_FEATURE_WARNING_ACTIVE);
07021 } else if (config->feature_timer) {
07022
07023 ast_clear_flag(config, AST_FEATURE_WARNING_ACTIVE);
07024 res = AST_BRIDGE_RETRY;
07025 } else {
07026 res = AST_BRIDGE_COMPLETE;
07027 }
07028 break;
07029 }
07030 } else {
07031
07032
07033
07034
07035 if (!ast_tvzero(config->nexteventts)) {
07036 int diff = ast_tvdiff_ms(config->nexteventts, ast_tvnow());
07037 if (diff <= 0) {
07038 res = AST_BRIDGE_RETRY;
07039 break;
07040 }
07041 }
07042 to = -1;
07043 }
07044
07045
07046 if (jb_in_use)
07047 to = ast_jb_get_when_to_wakeup(c0, c1, to);
07048 who = ast_waitfor_n(cs, 2, &to);
07049 if (!who) {
07050
07051 if (jb_in_use)
07052 ast_jb_get_and_deliver(c0, c1);
07053 if ((c0->_softhangup | c1->_softhangup) & AST_SOFTHANGUP_UNBRIDGE) {
07054 if (c0->_softhangup & AST_SOFTHANGUP_UNBRIDGE) {
07055 ast_channel_clear_softhangup(c0, AST_SOFTHANGUP_UNBRIDGE);
07056 }
07057 if (c1->_softhangup & AST_SOFTHANGUP_UNBRIDGE) {
07058 ast_channel_clear_softhangup(c1, AST_SOFTHANGUP_UNBRIDGE);
07059 }
07060 c0->_bridge = c1;
07061 c1->_bridge = c0;
07062 }
07063 continue;
07064 }
07065 f = ast_read(who);
07066 if (!f) {
07067 *fo = NULL;
07068 *rc = who;
07069 ast_debug(1, "Didn't get a frame from channel: %s\n",who->name);
07070 break;
07071 }
07072
07073 other = (who == c0) ? c1 : c0;
07074
07075 if (jb_in_use)
07076 frame_put_in_jb = !ast_jb_put(other, f);
07077
07078 if ((f->frametype == AST_FRAME_CONTROL) && !(config->flags & AST_BRIDGE_IGNORE_SIGS)) {
07079 int bridge_exit = 0;
07080
07081 switch (f->subclass.integer) {
07082 case AST_CONTROL_AOC:
07083 ast_indicate_data(other, f->subclass.integer, f->data.ptr, f->datalen);
07084 break;
07085 case AST_CONTROL_REDIRECTING:
07086 if (ast_channel_redirecting_macro(who, other, f, other == c0, 1)) {
07087 ast_indicate_data(other, f->subclass.integer, f->data.ptr, f->datalen);
07088 }
07089 break;
07090 case AST_CONTROL_CONNECTED_LINE:
07091 if (ast_channel_connected_line_macro(who, other, f, other == c0, 1)) {
07092 ast_indicate_data(other, f->subclass.integer, f->data.ptr, f->datalen);
07093 }
07094 break;
07095 case AST_CONTROL_HOLD:
07096 case AST_CONTROL_UNHOLD:
07097 case AST_CONTROL_VIDUPDATE:
07098 case AST_CONTROL_SRCUPDATE:
07099 case AST_CONTROL_SRCCHANGE:
07100 case AST_CONTROL_T38_PARAMETERS:
07101 ast_indicate_data(other, f->subclass.integer, f->data.ptr, f->datalen);
07102 if (jb_in_use) {
07103 ast_jb_empty_and_reset(c0, c1);
07104 }
07105 break;
07106 default:
07107 *fo = f;
07108 *rc = who;
07109 bridge_exit = 1;
07110 ast_debug(1, "Got a FRAME_CONTROL (%d) frame on channel %s\n", f->subclass.integer, who->name);
07111 break;
07112 }
07113 if (bridge_exit)
07114 break;
07115 }
07116 if ((f->frametype == AST_FRAME_VOICE) ||
07117 (f->frametype == AST_FRAME_DTMF_BEGIN) ||
07118 (f->frametype == AST_FRAME_DTMF) ||
07119 (f->frametype == AST_FRAME_VIDEO) ||
07120 (f->frametype == AST_FRAME_IMAGE) ||
07121 (f->frametype == AST_FRAME_HTML) ||
07122 (f->frametype == AST_FRAME_MODEM) ||
07123 (f->frametype == AST_FRAME_TEXT)) {
07124
07125 int monitored_source = (who == c0) ? watch_c0_dtmf : watch_c1_dtmf;
07126
07127 if (monitored_source &&
07128 (f->frametype == AST_FRAME_DTMF_END ||
07129 f->frametype == AST_FRAME_DTMF_BEGIN)) {
07130 *fo = f;
07131 *rc = who;
07132 ast_debug(1, "Got DTMF %s on channel (%s)\n",
07133 f->frametype == AST_FRAME_DTMF_END ? "end" : "begin",
07134 who->name);
07135
07136 break;
07137 }
07138
07139 if (!frame_put_in_jb)
07140 ast_write(other, f);
07141
07142
07143 if (jb_in_use)
07144 ast_jb_get_and_deliver(c0, c1);
07145 }
07146
07147 ast_frfree(f);
07148
07149 #ifndef HAVE_EPOLL
07150
07151 cs[2] = cs[0];
07152 cs[0] = cs[1];
07153 cs[1] = cs[2];
07154 #endif
07155 }
07156
07157 ast_poll_channel_del(c0, c1);
07158
07159 return res;
07160 }
07161
07162
07163 int ast_channel_early_bridge(struct ast_channel *c0, struct ast_channel *c1)
07164 {
07165
07166 if (!c0->tech->early_bridge || (c1 && (!c1->tech->early_bridge || c0->tech->early_bridge != c1->tech->early_bridge)))
07167 return -1;
07168
07169 return c0->tech->early_bridge(c0, c1);
07170 }
07171
07172
07173
07174
07175
07176
07177
07178 static void manager_bridge_event(int onoff, int type, struct ast_channel *c0, struct ast_channel *c1)
07179 {
07180 struct ast_channel *chans[2] = { c0, c1 };
07181 ast_manager_event_multichan(EVENT_FLAG_CALL, "Bridge", 2, chans,
07182 "Bridgestate: %s\r\n"
07183 "Bridgetype: %s\r\n"
07184 "Channel1: %s\r\n"
07185 "Channel2: %s\r\n"
07186 "Uniqueid1: %s\r\n"
07187 "Uniqueid2: %s\r\n"
07188 "CallerID1: %s\r\n"
07189 "CallerID2: %s\r\n",
07190 onoff ? "Link" : "Unlink",
07191 type == 1 ? "core" : "native",
07192 c0->name, c1->name,
07193 c0->uniqueid, c1->uniqueid,
07194 S_COR(c0->caller.id.number.valid, c0->caller.id.number.str, ""),
07195 S_COR(c1->caller.id.number.valid, c1->caller.id.number.str, ""));
07196 }
07197
07198 static void update_bridge_vars(struct ast_channel *c0, struct ast_channel *c1)
07199 {
07200 const char *c0_name;
07201 const char *c1_name;
07202 const char *c0_pvtid = NULL;
07203 const char *c1_pvtid = NULL;
07204
07205 ast_channel_lock(c1);
07206 c1_name = ast_strdupa(c1->name);
07207 if (c1->tech->get_pvt_uniqueid) {
07208 c1_pvtid = ast_strdupa(c1->tech->get_pvt_uniqueid(c1));
07209 }
07210 ast_channel_unlock(c1);
07211
07212 ast_channel_lock(c0);
07213 if (!ast_strlen_zero(pbx_builtin_getvar_helper(c0, "BRIDGEPEER"))) {
07214 pbx_builtin_setvar_helper(c0, "BRIDGEPEER", c1_name);
07215 }
07216 if (c1_pvtid) {
07217 pbx_builtin_setvar_helper(c0, "BRIDGEPVTCALLID", c1_pvtid);
07218 }
07219 c0_name = ast_strdupa(c0->name);
07220 if (c0->tech->get_pvt_uniqueid) {
07221 c0_pvtid = ast_strdupa(c0->tech->get_pvt_uniqueid(c0));
07222 }
07223 ast_channel_unlock(c0);
07224
07225 ast_channel_lock(c1);
07226 if (!ast_strlen_zero(pbx_builtin_getvar_helper(c1, "BRIDGEPEER"))) {
07227 pbx_builtin_setvar_helper(c1, "BRIDGEPEER", c0_name);
07228 }
07229 if (c0_pvtid) {
07230 pbx_builtin_setvar_helper(c1, "BRIDGEPVTCALLID", c0_pvtid);
07231 }
07232 ast_channel_unlock(c1);
07233 }
07234
07235 static void bridge_play_sounds(struct ast_channel *c0, struct ast_channel *c1)
07236 {
07237 const char *s, *sound;
07238
07239
07240
07241 ast_channel_lock(c0);
07242 if ((s = pbx_builtin_getvar_helper(c0, "BRIDGE_PLAY_SOUND"))) {
07243 sound = ast_strdupa(s);
07244 ast_channel_unlock(c0);
07245 bridge_playfile(c0, c1, sound, 0);
07246 pbx_builtin_setvar_helper(c0, "BRIDGE_PLAY_SOUND", NULL);
07247 } else {
07248 ast_channel_unlock(c0);
07249 }
07250
07251 ast_channel_lock(c1);
07252 if ((s = pbx_builtin_getvar_helper(c1, "BRIDGE_PLAY_SOUND"))) {
07253 sound = ast_strdupa(s);
07254 ast_channel_unlock(c1);
07255 bridge_playfile(c1, c0, sound, 0);
07256 pbx_builtin_setvar_helper(c1, "BRIDGE_PLAY_SOUND", NULL);
07257 } else {
07258 ast_channel_unlock(c1);
07259 }
07260 }
07261
07262
07263 enum ast_bridge_result ast_channel_bridge(struct ast_channel *c0, struct ast_channel *c1,
07264 struct ast_bridge_config *config, struct ast_frame **fo, struct ast_channel **rc)
07265 {
07266 struct ast_channel *chans[2] = { c0, c1 };
07267 enum ast_bridge_result res = AST_BRIDGE_COMPLETE;
07268 format_t o0nativeformats;
07269 format_t o1nativeformats;
07270 long time_left_ms=0;
07271 char caller_warning = 0;
07272 char callee_warning = 0;
07273
07274 *fo = NULL;
07275
07276 if (c0->_bridge) {
07277 ast_log(LOG_WARNING, "%s is already in a bridge with %s\n",
07278 c0->name, c0->_bridge->name);
07279 return -1;
07280 }
07281 if (c1->_bridge) {
07282 ast_log(LOG_WARNING, "%s is already in a bridge with %s\n",
07283 c1->name, c1->_bridge->name);
07284 return -1;
07285 }
07286
07287
07288 if (ast_test_flag(c0, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
07289 ast_test_flag(c1, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1))
07290 return -1;
07291
07292 caller_warning = ast_test_flag(&config->features_caller, AST_FEATURE_PLAY_WARNING);
07293 callee_warning = ast_test_flag(&config->features_callee, AST_FEATURE_PLAY_WARNING);
07294
07295 if (ast_tvzero(config->start_time)) {
07296 config->start_time = ast_tvnow();
07297 if (config->start_sound) {
07298 if (caller_warning) {
07299 bridge_playfile(c0, c1, config->start_sound, config->timelimit / 1000);
07300 }
07301 if (callee_warning) {
07302 bridge_playfile(c1, c0, config->start_sound, config->timelimit / 1000);
07303 }
07304 }
07305 }
07306
07307
07308 c0->_bridge = c1;
07309 c1->_bridge = c0;
07310
07311 ast_set_owners_and_peers(c0, c1);
07312
07313 o0nativeformats = c0->nativeformats;
07314 o1nativeformats = c1->nativeformats;
07315
07316 if (config->feature_timer && !ast_tvzero(config->nexteventts)) {
07317 config->nexteventts = ast_tvadd(config->feature_start_time, ast_samp2tv(config->feature_timer, 1000));
07318 } else if (config->timelimit) {
07319 time_left_ms = config->timelimit - ast_tvdiff_ms(ast_tvnow(), config->start_time);
07320 config->nexteventts = ast_tvadd(config->start_time, ast_samp2tv(config->timelimit, 1000));
07321 if ((caller_warning || callee_warning) && config->play_warning) {
07322 long next_warn = config->play_warning;
07323 if (time_left_ms < config->play_warning && config->warning_freq > 0) {
07324
07325 long warns_passed = (config->play_warning - time_left_ms) / config->warning_freq;
07326
07327
07328 next_warn = config->play_warning - warns_passed * config->warning_freq;
07329 }
07330 config->nexteventts = ast_tvsub(config->nexteventts, ast_samp2tv(next_warn, 1000));
07331 }
07332 } else {
07333 config->nexteventts.tv_sec = 0;
07334 config->nexteventts.tv_usec = 0;
07335 }
07336
07337 if (!c0->tech->send_digit_begin)
07338 ast_set_flag(c1, AST_FLAG_END_DTMF_ONLY);
07339 if (!c1->tech->send_digit_begin)
07340 ast_set_flag(c0, AST_FLAG_END_DTMF_ONLY);
07341 manager_bridge_event(1, 1, c0, c1);
07342
07343
07344 ast_indicate(c0, AST_CONTROL_SRCUPDATE);
07345 ast_indicate(c1, AST_CONTROL_SRCUPDATE);
07346
07347 for (;;) {
07348 struct timeval now = { 0, };
07349 int to;
07350
07351 to = -1;
07352
07353 if (!ast_tvzero(config->nexteventts)) {
07354 now = ast_tvnow();
07355 to = ast_tvdiff_ms(config->nexteventts, now);
07356 if (to <= 0) {
07357 if (!config->timelimit) {
07358 res = AST_BRIDGE_COMPLETE;
07359 break;
07360 }
07361 to = 0;
07362 }
07363 }
07364
07365 if (config->timelimit) {
07366 time_left_ms = config->timelimit - ast_tvdiff_ms(now, config->start_time);
07367 if (time_left_ms < to)
07368 to = time_left_ms;
07369
07370 if (time_left_ms <= 0) {
07371 if (caller_warning && config->end_sound)
07372 bridge_playfile(c0, c1, config->end_sound, 0);
07373 if (callee_warning && config->end_sound)
07374 bridge_playfile(c1, c0, config->end_sound, 0);
07375 *fo = NULL;
07376 res = 0;
07377 break;
07378 }
07379
07380 if (!to) {
07381 if (time_left_ms >= 5000 && config->warning_sound && config->play_warning && ast_test_flag(config, AST_FEATURE_WARNING_ACTIVE)) {
07382 int t = (time_left_ms + 500) / 1000;
07383 if (caller_warning)
07384 bridge_playfile(c0, c1, config->warning_sound, t);
07385 if (callee_warning)
07386 bridge_playfile(c1, c0, config->warning_sound, t);
07387 }
07388
07389 if (config->warning_freq && (time_left_ms > (config->warning_freq + 5000))) {
07390 config->nexteventts = ast_tvadd(config->nexteventts, ast_samp2tv(config->warning_freq, 1000));
07391 } else {
07392 config->nexteventts = ast_tvadd(config->start_time, ast_samp2tv(config->timelimit, 1000));
07393 }
07394 }
07395 ast_clear_flag(config, AST_FEATURE_WARNING_ACTIVE);
07396 }
07397
07398 if ((c0->_softhangup | c1->_softhangup) & AST_SOFTHANGUP_UNBRIDGE) {
07399 if (c0->_softhangup & AST_SOFTHANGUP_UNBRIDGE) {
07400 ast_channel_clear_softhangup(c0, AST_SOFTHANGUP_UNBRIDGE);
07401 }
07402 if (c1->_softhangup & AST_SOFTHANGUP_UNBRIDGE) {
07403 ast_channel_clear_softhangup(c1, AST_SOFTHANGUP_UNBRIDGE);
07404 }
07405 c0->_bridge = c1;
07406 c1->_bridge = c0;
07407 ast_debug(1, "Unbridge signal received. Ending native bridge.\n");
07408 continue;
07409 }
07410
07411
07412 if (ast_test_flag(c0, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
07413 ast_test_flag(c1, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1)) {
07414 *fo = NULL;
07415 res = 0;
07416 ast_debug(1, "Bridge stops because we're zombie or need a soft hangup: c0=%s, c1=%s, flags: %s,%s,%s,%s\n",
07417 c0->name, c1->name,
07418 ast_test_flag(c0, AST_FLAG_ZOMBIE) ? "Yes" : "No",
07419 ast_check_hangup(c0) ? "Yes" : "No",
07420 ast_test_flag(c1, AST_FLAG_ZOMBIE) ? "Yes" : "No",
07421 ast_check_hangup(c1) ? "Yes" : "No");
07422 break;
07423 }
07424
07425 update_bridge_vars(c0, c1);
07426
07427 bridge_play_sounds(c0, c1);
07428
07429 if (c0->tech->bridge &&
07430
07431 (!config->timelimit || to > 1000 || to == 0) &&
07432 (c0->tech->bridge == c1->tech->bridge) &&
07433 !c0->monitor && !c1->monitor &&
07434 !c0->audiohooks && !c1->audiohooks &&
07435 ast_framehook_list_is_empty(c0->framehooks) && ast_framehook_list_is_empty(c1->framehooks) &&
07436 !c0->masq && !c0->masqr && !c1->masq && !c1->masqr) {
07437 int timeoutms = to - 1000 > 0 ? to - 1000 : to;
07438
07439 ast_set_flag(c0, AST_FLAG_NBRIDGE);
07440 ast_set_flag(c1, AST_FLAG_NBRIDGE);
07441 if ((res = c0->tech->bridge(c0, c1, config->flags, fo, rc, timeoutms)) == AST_BRIDGE_COMPLETE) {
07442 ast_manager_event_multichan(EVENT_FLAG_CALL, "Unlink", 2, chans,
07443 "Channel1: %s\r\n"
07444 "Channel2: %s\r\n"
07445 "Uniqueid1: %s\r\n"
07446 "Uniqueid2: %s\r\n"
07447 "CallerID1: %s\r\n"
07448 "CallerID2: %s\r\n",
07449 c0->name, c1->name,
07450 c0->uniqueid, c1->uniqueid,
07451 S_COR(c0->caller.id.number.valid, c0->caller.id.number.str, "<unknown>"),
07452 S_COR(c1->caller.id.number.valid, c1->caller.id.number.str, "<unknown>"));
07453
07454 ast_debug(1, "Returning from native bridge, channels: %s, %s\n", c0->name, c1->name);
07455
07456 ast_clear_flag(c0, AST_FLAG_NBRIDGE);
07457 ast_clear_flag(c1, AST_FLAG_NBRIDGE);
07458
07459 if ((c0->_softhangup | c1->_softhangup) & AST_SOFTHANGUP_UNBRIDGE) {
07460 continue;
07461 }
07462
07463 c0->_bridge = NULL;
07464 c1->_bridge = NULL;
07465 return res;
07466 } else {
07467 ast_clear_flag(c0, AST_FLAG_NBRIDGE);
07468 ast_clear_flag(c1, AST_FLAG_NBRIDGE);
07469 }
07470 switch (res) {
07471 case AST_BRIDGE_RETRY:
07472 if (config->play_warning) {
07473 ast_set_flag(config, AST_FEATURE_WARNING_ACTIVE);
07474 }
07475 continue;
07476 default:
07477 ast_verb(3, "Native bridging %s and %s ended\n", c0->name, c1->name);
07478
07479 case AST_BRIDGE_FAILED_NOWARN:
07480 break;
07481 }
07482 }
07483
07484 if (((c0->writeformat != c1->readformat) || (c0->readformat != c1->writeformat) ||
07485 (c0->nativeformats != o0nativeformats) || (c1->nativeformats != o1nativeformats)) &&
07486 !(c0->generator || c1->generator)) {
07487 if (ast_channel_make_compatible(c0, c1)) {
07488 ast_log(LOG_WARNING, "Can't make %s and %s compatible\n", c0->name, c1->name);
07489 manager_bridge_event(0, 1, c0, c1);
07490 return AST_BRIDGE_FAILED;
07491 }
07492 o0nativeformats = c0->nativeformats;
07493 o1nativeformats = c1->nativeformats;
07494 }
07495
07496 update_bridge_vars(c0, c1);
07497
07498 res = ast_generic_bridge(c0, c1, config, fo, rc);
07499 if (res != AST_BRIDGE_RETRY) {
07500 break;
07501 } else if (config->feature_timer) {
07502
07503 break;
07504 }
07505 }
07506
07507 ast_clear_flag(c0, AST_FLAG_END_DTMF_ONLY);
07508 ast_clear_flag(c1, AST_FLAG_END_DTMF_ONLY);
07509
07510
07511 ast_indicate(c0, AST_CONTROL_SRCUPDATE);
07512 ast_indicate(c1, AST_CONTROL_SRCUPDATE);
07513
07514 c0->_bridge = NULL;
07515 c1->_bridge = NULL;
07516
07517 ast_manager_event_multichan(EVENT_FLAG_CALL, "Unlink", 2, chans,
07518 "Channel1: %s\r\n"
07519 "Channel2: %s\r\n"
07520 "Uniqueid1: %s\r\n"
07521 "Uniqueid2: %s\r\n"
07522 "CallerID1: %s\r\n"
07523 "CallerID2: %s\r\n",
07524 c0->name, c1->name,
07525 c0->uniqueid, c1->uniqueid,
07526 S_COR(c0->caller.id.number.valid, c0->caller.id.number.str, "<unknown>"),
07527 S_COR(c1->caller.id.number.valid, c1->caller.id.number.str, "<unknown>"));
07528 ast_debug(1, "Bridge stops bridging channels %s and %s\n", c0->name, c1->name);
07529
07530 return res;
07531 }
07532
07533
07534 int ast_channel_setoption(struct ast_channel *chan, int option, void *data, int datalen, int block)
07535 {
07536 int res;
07537
07538 ast_channel_lock(chan);
07539 if (!chan->tech->setoption) {
07540 errno = ENOSYS;
07541 ast_channel_unlock(chan);
07542 return -1;
07543 }
07544
07545 if (block)
07546 ast_log(LOG_ERROR, "XXX Blocking not implemented yet XXX\n");
07547
07548 res = chan->tech->setoption(chan, option, data, datalen);
07549 ast_channel_unlock(chan);
07550
07551 return res;
07552 }
07553
07554 int ast_channel_queryoption(struct ast_channel *chan, int option, void *data, int *datalen, int block)
07555 {
07556 int res;
07557
07558 ast_channel_lock(chan);
07559 if (!chan->tech->queryoption) {
07560 errno = ENOSYS;
07561 ast_channel_unlock(chan);
07562 return -1;
07563 }
07564
07565 if (block)
07566 ast_log(LOG_ERROR, "XXX Blocking not implemented yet XXX\n");
07567
07568 res = chan->tech->queryoption(chan, option, data, datalen);
07569 ast_channel_unlock(chan);
07570
07571 return res;
07572 }
07573
07574 struct tonepair_def {
07575 int freq1;
07576 int freq2;
07577 int duration;
07578 int vol;
07579 };
07580
07581 struct tonepair_state {
07582 int fac1;
07583 int fac2;
07584 int v1_1;
07585 int v2_1;
07586 int v3_1;
07587 int v1_2;
07588 int v2_2;
07589 int v3_2;
07590 format_t origwfmt;
07591 int pos;
07592 int duration;
07593 int modulate;
07594 struct ast_frame f;
07595 unsigned char offset[AST_FRIENDLY_OFFSET];
07596 short data[4000];
07597 };
07598
07599 static void tonepair_release(struct ast_channel *chan, void *params)
07600 {
07601 struct tonepair_state *ts = params;
07602
07603 if (chan)
07604 ast_set_write_format(chan, ts->origwfmt);
07605 ast_free(ts);
07606 }
07607
07608 static void *tonepair_alloc(struct ast_channel *chan, void *params)
07609 {
07610 struct tonepair_state *ts;
07611 struct tonepair_def *td = params;
07612
07613 if (!(ts = ast_calloc(1, sizeof(*ts))))
07614 return NULL;
07615 ts->origwfmt = chan->writeformat;
07616 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR)) {
07617 ast_log(LOG_WARNING, "Unable to set '%s' to signed linear format (write)\n", chan->name);
07618 tonepair_release(NULL, ts);
07619 ts = NULL;
07620 } else {
07621 ts->fac1 = 2.0 * cos(2.0 * M_PI * (td->freq1 / 8000.0)) * 32768.0;
07622 ts->v1_1 = 0;
07623 ts->v2_1 = sin(-4.0 * M_PI * (td->freq1 / 8000.0)) * td->vol;
07624 ts->v3_1 = sin(-2.0 * M_PI * (td->freq1 / 8000.0)) * td->vol;
07625 ts->v2_1 = 0;
07626 ts->fac2 = 2.0 * cos(2.0 * M_PI * (td->freq2 / 8000.0)) * 32768.0;
07627 ts->v2_2 = sin(-4.0 * M_PI * (td->freq2 / 8000.0)) * td->vol;
07628 ts->v3_2 = sin(-2.0 * M_PI * (td->freq2 / 8000.0)) * td->vol;
07629 ts->duration = td->duration;
07630 ts->modulate = 0;
07631 }
07632
07633 ast_set_flag(chan, AST_FLAG_WRITE_INT);
07634 return ts;
07635 }
07636
07637 static int tonepair_generator(struct ast_channel *chan, void *data, int len, int samples)
07638 {
07639 struct tonepair_state *ts = data;
07640 int x;
07641
07642
07643
07644
07645 len = samples * 2;
07646
07647 if (len > sizeof(ts->data) / 2 - 1) {
07648 ast_log(LOG_WARNING, "Can't generate that much data!\n");
07649 return -1;
07650 }
07651 memset(&ts->f, 0, sizeof(ts->f));
07652 for (x=0;x<len/2;x++) {
07653 ts->v1_1 = ts->v2_1;
07654 ts->v2_1 = ts->v3_1;
07655 ts->v3_1 = (ts->fac1 * ts->v2_1 >> 15) - ts->v1_1;
07656
07657 ts->v1_2 = ts->v2_2;
07658 ts->v2_2 = ts->v3_2;
07659 ts->v3_2 = (ts->fac2 * ts->v2_2 >> 15) - ts->v1_2;
07660 if (ts->modulate) {
07661 int p;
07662 p = ts->v3_2 - 32768;
07663 if (p < 0) p = -p;
07664 p = ((p * 9) / 10) + 1;
07665 ts->data[x] = (ts->v3_1 * p) >> 15;
07666 } else
07667 ts->data[x] = ts->v3_1 + ts->v3_2;
07668 }
07669 ts->f.frametype = AST_FRAME_VOICE;
07670 ts->f.subclass.codec = AST_FORMAT_SLINEAR;
07671 ts->f.datalen = len;
07672 ts->f.samples = samples;
07673 ts->f.offset = AST_FRIENDLY_OFFSET;
07674 ts->f.data.ptr = ts->data;
07675 ast_write(chan, &ts->f);
07676 ts->pos += x;
07677 if (ts->duration > 0) {
07678 if (ts->pos >= ts->duration * 8)
07679 return -1;
07680 }
07681 return 0;
07682 }
07683
07684 static struct ast_generator tonepair = {
07685 alloc: tonepair_alloc,
07686 release: tonepair_release,
07687 generate: tonepair_generator,
07688 };
07689
07690 int ast_tonepair_start(struct ast_channel *chan, int freq1, int freq2, int duration, int vol)
07691 {
07692 struct tonepair_def d = { 0, };
07693
07694 d.freq1 = freq1;
07695 d.freq2 = freq2;
07696 d.duration = duration;
07697 d.vol = (vol < 1) ? 8192 : vol;
07698 if (ast_activate_generator(chan, &tonepair, &d))
07699 return -1;
07700 return 0;
07701 }
07702
07703 void ast_tonepair_stop(struct ast_channel *chan)
07704 {
07705 ast_deactivate_generator(chan);
07706 }
07707
07708 int ast_tonepair(struct ast_channel *chan, int freq1, int freq2, int duration, int vol)
07709 {
07710 int res;
07711
07712 if ((res = ast_tonepair_start(chan, freq1, freq2, duration, vol)))
07713 return res;
07714
07715
07716 while (chan->generatordata && ast_waitfor(chan, 100) >= 0) {
07717 struct ast_frame *f = ast_read(chan);
07718 if (f)
07719 ast_frfree(f);
07720 else
07721 return -1;
07722 }
07723 return 0;
07724 }
07725
07726 ast_group_t ast_get_group(const char *s)
07727 {
07728 char *piece;
07729 char *c;
07730 int start=0, finish=0, x;
07731 ast_group_t group = 0;
07732
07733 if (ast_strlen_zero(s))
07734 return 0;
07735
07736 c = ast_strdupa(s);
07737
07738 while ((piece = strsep(&c, ","))) {
07739 if (sscanf(piece, "%30d-%30d", &start, &finish) == 2) {
07740
07741 } else if (sscanf(piece, "%30d", &start)) {
07742
07743 finish = start;
07744 } else {
07745 ast_log(LOG_ERROR, "Syntax error parsing group configuration '%s' at '%s'. Ignoring.\n", s, piece);
07746 continue;
07747 }
07748 for (x = start; x <= finish; x++) {
07749 if ((x > 63) || (x < 0)) {
07750 ast_log(LOG_WARNING, "Ignoring invalid group %d (maximum group is 63)\n", x);
07751 } else
07752 group |= ((ast_group_t) 1 << x);
07753 }
07754 }
07755 return group;
07756 }
07757
07758 static int (*ast_moh_start_ptr)(struct ast_channel *, const char *, const char *) = NULL;
07759 static void (*ast_moh_stop_ptr)(struct ast_channel *) = NULL;
07760 static void (*ast_moh_cleanup_ptr)(struct ast_channel *) = NULL;
07761
07762 void ast_install_music_functions(int (*start_ptr)(struct ast_channel *, const char *, const char *),
07763 void (*stop_ptr)(struct ast_channel *),
07764 void (*cleanup_ptr)(struct ast_channel *))
07765 {
07766 ast_moh_start_ptr = start_ptr;
07767 ast_moh_stop_ptr = stop_ptr;
07768 ast_moh_cleanup_ptr = cleanup_ptr;
07769 }
07770
07771 void ast_uninstall_music_functions(void)
07772 {
07773 ast_moh_start_ptr = NULL;
07774 ast_moh_stop_ptr = NULL;
07775 ast_moh_cleanup_ptr = NULL;
07776 }
07777
07778
07779 int ast_moh_start(struct ast_channel *chan, const char *mclass, const char *interpclass)
07780 {
07781 if (ast_moh_start_ptr)
07782 return ast_moh_start_ptr(chan, mclass, interpclass);
07783
07784 ast_verb(3, "Music class %s requested but no musiconhold loaded.\n", mclass ? mclass : (interpclass ? interpclass : "default"));
07785
07786 return 0;
07787 }
07788
07789
07790 void ast_moh_stop(struct ast_channel *chan)
07791 {
07792 if (ast_moh_stop_ptr)
07793 ast_moh_stop_ptr(chan);
07794 }
07795
07796 void ast_moh_cleanup(struct ast_channel *chan)
07797 {
07798 if (ast_moh_cleanup_ptr)
07799 ast_moh_cleanup_ptr(chan);
07800 }
07801
07802 static int ast_channel_hash_cb(const void *obj, const int flags)
07803 {
07804 const struct ast_channel *chan = obj;
07805
07806
07807
07808 if (ast_strlen_zero(chan->name)) {
07809 return 0;
07810 }
07811
07812 return ast_str_case_hash(chan->name);
07813 }
07814
07815 int ast_plc_reload(void)
07816 {
07817 struct ast_variable *var;
07818 struct ast_flags config_flags = { 0 };
07819 struct ast_config *cfg = ast_config_load("codecs.conf", config_flags);
07820 if (cfg == CONFIG_STATUS_FILEMISSING || cfg == CONFIG_STATUS_FILEUNCHANGED || cfg == CONFIG_STATUS_FILEINVALID)
07821 return 0;
07822 for (var = ast_variable_browse(cfg, "plc"); var; var = var->next) {
07823 if (!strcasecmp(var->name, "genericplc")) {
07824 ast_set2_flag(&ast_options, ast_true(var->value), AST_OPT_FLAG_GENERIC_PLC);
07825 }
07826 }
07827 ast_config_destroy(cfg);
07828 return 0;
07829 }
07830
07831
07832
07833
07834
07835 static int data_channels_provider_handler(const struct ast_data_search *search,
07836 struct ast_data *root)
07837 {
07838 struct ast_channel *c;
07839 struct ast_channel_iterator *iter = NULL;
07840 struct ast_data *data_channel;
07841
07842 for (iter = ast_channel_iterator_all_new();
07843 iter && (c = ast_channel_iterator_next(iter)); ast_channel_unref(c)) {
07844 ast_channel_lock(c);
07845
07846 data_channel = ast_data_add_node(root, "channel");
07847 if (!data_channel) {
07848 ast_channel_unlock(c);
07849 continue;
07850 }
07851
07852 if (ast_channel_data_add_structure(data_channel, c, 1) < 0) {
07853 ast_log(LOG_ERROR, "Unable to add channel structure for channel: %s\n", c->name);
07854 }
07855
07856 ast_channel_unlock(c);
07857
07858 if (!ast_data_search_match(search, data_channel)) {
07859 ast_data_remove_node(root, data_channel);
07860 }
07861 }
07862 if (iter) {
07863 ast_channel_iterator_destroy(iter);
07864 }
07865
07866 return 0;
07867 }
07868
07869
07870
07871
07872
07873 static int data_channeltypes_provider_handler(const struct ast_data_search *search,
07874 struct ast_data *data_root)
07875 {
07876 struct chanlist *cl;
07877 struct ast_data *data_type;
07878
07879 AST_RWLIST_RDLOCK(&backends);
07880 AST_RWLIST_TRAVERSE(&backends, cl, list) {
07881 data_type = ast_data_add_node(data_root, "type");
07882 if (!data_type) {
07883 continue;
07884 }
07885 ast_data_add_str(data_type, "name", cl->tech->type);
07886 ast_data_add_str(data_type, "description", cl->tech->description);
07887 ast_data_add_bool(data_type, "devicestate", cl->tech->devicestate ? 1 : 0);
07888 ast_data_add_bool(data_type, "indications", cl->tech->indicate ? 1 : 0);
07889 ast_data_add_bool(data_type, "transfer", cl->tech->transfer ? 1 : 0);
07890 ast_data_add_bool(data_type, "send_digit_begin", cl->tech->send_digit_begin ? 1 : 0);
07891 ast_data_add_bool(data_type, "send_digit_end", cl->tech->send_digit_end ? 1 : 0);
07892 ast_data_add_bool(data_type, "call", cl->tech->call ? 1 : 0);
07893 ast_data_add_bool(data_type, "hangup", cl->tech->hangup ? 1 : 0);
07894 ast_data_add_bool(data_type, "answer", cl->tech->answer ? 1 : 0);
07895 ast_data_add_bool(data_type, "read", cl->tech->read ? 1 : 0);
07896 ast_data_add_bool(data_type, "write", cl->tech->write ? 1 : 0);
07897 ast_data_add_bool(data_type, "send_text", cl->tech->send_text ? 1 : 0);
07898 ast_data_add_bool(data_type, "send_image", cl->tech->send_image ? 1 : 0);
07899 ast_data_add_bool(data_type, "send_html", cl->tech->send_html ? 1 : 0);
07900 ast_data_add_bool(data_type, "exception", cl->tech->exception ? 1 : 0);
07901 ast_data_add_bool(data_type, "bridge", cl->tech->bridge ? 1 : 0);
07902 ast_data_add_bool(data_type, "early_bridge", cl->tech->early_bridge ? 1 : 0);
07903 ast_data_add_bool(data_type, "fixup", cl->tech->fixup ? 1 : 0);
07904 ast_data_add_bool(data_type, "setoption", cl->tech->setoption ? 1 : 0);
07905 ast_data_add_bool(data_type, "queryoption", cl->tech->queryoption ? 1 : 0);
07906 ast_data_add_bool(data_type, "write_video", cl->tech->write_video ? 1 : 0);
07907 ast_data_add_bool(data_type, "write_text", cl->tech->write_text ? 1 : 0);
07908 ast_data_add_bool(data_type, "bridged_channel", cl->tech->bridged_channel ? 1 : 0);
07909 ast_data_add_bool(data_type, "func_channel_read", cl->tech->func_channel_read ? 1 : 0);
07910 ast_data_add_bool(data_type, "func_channel_write", cl->tech->func_channel_write ? 1 : 0);
07911 ast_data_add_bool(data_type, "get_base_channel", cl->tech->get_base_channel ? 1 : 0);
07912 ast_data_add_bool(data_type, "set_base_channel", cl->tech->set_base_channel ? 1 : 0);
07913 ast_data_add_bool(data_type, "get_pvt_uniqueid", cl->tech->get_pvt_uniqueid ? 1 : 0);
07914 ast_data_add_bool(data_type, "cc_callback", cl->tech->cc_callback ? 1 : 0);
07915
07916 ast_data_add_codecs(data_type, "capabilities", cl->tech->capabilities);
07917
07918 if (!ast_data_search_match(search, data_type)) {
07919 ast_data_remove_node(data_root, data_type);
07920 }
07921 }
07922 AST_RWLIST_UNLOCK(&backends);
07923
07924 return 0;
07925 }
07926
07927
07928
07929
07930
07931 static const struct ast_data_handler channels_provider = {
07932 .version = AST_DATA_HANDLER_VERSION,
07933 .get = data_channels_provider_handler
07934 };
07935
07936
07937
07938
07939
07940 static const struct ast_data_handler channeltypes_provider = {
07941 .version = AST_DATA_HANDLER_VERSION,
07942 .get = data_channeltypes_provider_handler
07943 };
07944
07945 static const struct ast_data_entry channel_providers[] = {
07946 AST_DATA_ENTRY("/asterisk/core/channels", &channels_provider),
07947 AST_DATA_ENTRY("/asterisk/core/channeltypes", &channeltypes_provider),
07948 };
07949
07950 void ast_channels_init(void)
07951 {
07952 channels = ao2_container_alloc(NUM_CHANNEL_BUCKETS,
07953 ast_channel_hash_cb, ast_channel_cmp_cb);
07954
07955 ast_cli_register_multiple(cli_channel, ARRAY_LEN(cli_channel));
07956
07957 ast_data_register_multiple_core(channel_providers, ARRAY_LEN(channel_providers));
07958
07959 ast_plc_reload();
07960 }
07961
07962
07963 char *ast_print_group(char *buf, int buflen, ast_group_t group)
07964 {
07965 unsigned int i;
07966 int first = 1;
07967 char num[3];
07968
07969 buf[0] = '\0';
07970
07971 if (!group)
07972 return buf;
07973
07974 for (i = 0; i <= 63; i++) {
07975 if (group & ((ast_group_t) 1 << i)) {
07976 if (!first) {
07977 strncat(buf, ", ", buflen - strlen(buf) - 1);
07978 } else {
07979 first = 0;
07980 }
07981 snprintf(num, sizeof(num), "%u", i);
07982 strncat(buf, num, buflen - strlen(buf) - 1);
07983 }
07984 }
07985 return buf;
07986 }
07987
07988 void ast_set_variables(struct ast_channel *chan, struct ast_variable *vars)
07989 {
07990 struct ast_variable *cur;
07991
07992 for (cur = vars; cur; cur = cur->next)
07993 pbx_builtin_setvar_helper(chan, cur->name, cur->value);
07994 }
07995
07996 static void *silence_generator_alloc(struct ast_channel *chan, void *data)
07997 {
07998
07999 return data;
08000 }
08001
08002 static void silence_generator_release(struct ast_channel *chan, void *data)
08003 {
08004
08005 }
08006
08007 static int silence_generator_generate(struct ast_channel *chan, void *data, int len, int samples)
08008 {
08009 short buf[samples];
08010 struct ast_frame frame = {
08011 .frametype = AST_FRAME_VOICE,
08012 .subclass.codec = AST_FORMAT_SLINEAR,
08013 .data.ptr = buf,
08014 .samples = samples,
08015 .datalen = sizeof(buf),
08016 };
08017
08018 memset(buf, 0, sizeof(buf));
08019
08020 if (ast_write(chan, &frame))
08021 return -1;
08022
08023 return 0;
08024 }
08025
08026 static struct ast_generator silence_generator = {
08027 .alloc = silence_generator_alloc,
08028 .release = silence_generator_release,
08029 .generate = silence_generator_generate,
08030 };
08031
08032 struct ast_silence_generator {
08033 int old_write_format;
08034 };
08035
08036 struct ast_silence_generator *ast_channel_start_silence_generator(struct ast_channel *chan)
08037 {
08038 struct ast_silence_generator *state;
08039
08040 if (!(state = ast_calloc(1, sizeof(*state)))) {
08041 return NULL;
08042 }
08043
08044 state->old_write_format = chan->writeformat;
08045
08046 if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
08047 ast_log(LOG_ERROR, "Could not set write format to SLINEAR\n");
08048 ast_free(state);
08049 return NULL;
08050 }
08051
08052 ast_activate_generator(chan, &silence_generator, state);
08053
08054 ast_debug(1, "Started silence generator on '%s'\n", chan->name);
08055
08056 return state;
08057 }
08058
08059 void ast_channel_stop_silence_generator(struct ast_channel *chan, struct ast_silence_generator *state)
08060 {
08061 if (!state)
08062 return;
08063
08064 ast_deactivate_generator(chan);
08065
08066 ast_debug(1, "Stopped silence generator on '%s'\n", chan->name);
08067
08068 if (ast_set_write_format(chan, state->old_write_format) < 0)
08069 ast_log(LOG_ERROR, "Could not return write format to its original state\n");
08070
08071 ast_free(state);
08072 }
08073
08074
08075
08076 const char *channelreloadreason2txt(enum channelreloadreason reason)
08077 {
08078 switch (reason) {
08079 case CHANNEL_MODULE_LOAD:
08080 return "LOAD (Channel module load)";
08081
08082 case CHANNEL_MODULE_RELOAD:
08083 return "RELOAD (Channel module reload)";
08084
08085 case CHANNEL_CLI_RELOAD:
08086 return "CLIRELOAD (Channel module reload by CLI command)";
08087
08088 default:
08089 return "MANAGERRELOAD (Channel module reload by manager)";
08090 }
08091 };
08092
08093
08094
08095
08096
08097
08098
08099
08100
08101 int ast_say_number(struct ast_channel *chan, int num,
08102 const char *ints, const char *language, const char *options)
08103 {
08104 return ast_say_number_full(chan, num, ints, language, options, -1, -1);
08105 }
08106
08107 int ast_say_enumeration(struct ast_channel *chan, int num,
08108 const char *ints, const char *language, const char *options)
08109 {
08110 return ast_say_enumeration_full(chan, num, ints, language, options, -1, -1);
08111 }
08112
08113 int ast_say_digits(struct ast_channel *chan, int num,
08114 const char *ints, const char *lang)
08115 {
08116 return ast_say_digits_full(chan, num, ints, lang, -1, -1);
08117 }
08118
08119 int ast_say_digit_str(struct ast_channel *chan, const char *str,
08120 const char *ints, const char *lang)
08121 {
08122 return ast_say_digit_str_full(chan, str, ints, lang, -1, -1);
08123 }
08124
08125 int ast_say_character_str(struct ast_channel *chan, const char *str,
08126 const char *ints, const char *lang)
08127 {
08128 return ast_say_character_str_full(chan, str, ints, lang, -1, -1);
08129 }
08130
08131 int ast_say_phonetic_str(struct ast_channel *chan, const char *str,
08132 const char *ints, const char *lang)
08133 {
08134 return ast_say_phonetic_str_full(chan, str, ints, lang, -1, -1);
08135 }
08136
08137 int ast_say_digits_full(struct ast_channel *chan, int num,
08138 const char *ints, const char *lang, int audiofd, int ctrlfd)
08139 {
08140 char buf[256];
08141
08142 snprintf(buf, sizeof(buf), "%d", num);
08143
08144 return ast_say_digit_str_full(chan, buf, ints, lang, audiofd, ctrlfd);
08145 }
08146
08147 void ast_connected_line_copy_from_caller(struct ast_party_connected_line *dest, const struct ast_party_caller *src)
08148 {
08149 ast_party_id_copy(&dest->id, &src->id);
08150 ast_party_id_copy(&dest->ani, &src->ani);
08151 dest->ani2 = src->ani2;
08152 }
08153
08154 void ast_connected_line_copy_to_caller(struct ast_party_caller *dest, const struct ast_party_connected_line *src)
08155 {
08156 ast_party_id_copy(&dest->id, &src->id);
08157 ast_party_id_copy(&dest->ani, &src->ani);
08158
08159 dest->ani2 = src->ani2;
08160 }
08161
08162 void ast_channel_set_connected_line(struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
08163 {
08164 if (&chan->connected == connected) {
08165
08166 return;
08167 }
08168
08169 ast_channel_lock(chan);
08170 ast_party_connected_line_set(&chan->connected, connected, update);
08171 ast_channel_unlock(chan);
08172 }
08173
08174
08175 struct ast_party_name_ies {
08176
08177 int str;
08178
08179 int char_set;
08180
08181 int presentation;
08182
08183 int valid;
08184 };
08185
08186
08187
08188
08189
08190
08191
08192
08193
08194
08195
08196
08197
08198
08199
08200 static int party_name_build_data(unsigned char *data, size_t datalen, const struct ast_party_name *name, const char *label, const struct ast_party_name_ies *ies)
08201 {
08202 size_t length;
08203 size_t pos = 0;
08204
08205
08206
08207
08208
08209 if (name->str) {
08210 length = strlen(name->str);
08211 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
08212 ast_log(LOG_WARNING, "No space left for %s name\n", label);
08213 return -1;
08214 }
08215 data[pos++] = ies->str;
08216 data[pos++] = length;
08217 memcpy(data + pos, name->str, length);
08218 pos += length;
08219 }
08220
08221 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08222 ast_log(LOG_WARNING, "No space left for %s name char set\n", label);
08223 return -1;
08224 }
08225 data[pos++] = ies->char_set;
08226 data[pos++] = 1;
08227 data[pos++] = name->char_set;
08228
08229 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08230 ast_log(LOG_WARNING, "No space left for %s name presentation\n", label);
08231 return -1;
08232 }
08233 data[pos++] = ies->presentation;
08234 data[pos++] = 1;
08235 data[pos++] = name->presentation;
08236
08237 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08238 ast_log(LOG_WARNING, "No space left for %s name valid\n", label);
08239 return -1;
08240 }
08241 data[pos++] = ies->valid;
08242 data[pos++] = 1;
08243 data[pos++] = name->valid;
08244
08245 return pos;
08246 }
08247
08248
08249 struct ast_party_number_ies {
08250
08251 int str;
08252
08253 int plan;
08254
08255 int presentation;
08256
08257 int valid;
08258 };
08259
08260
08261
08262
08263
08264
08265
08266
08267
08268
08269
08270
08271
08272
08273
08274 static int party_number_build_data(unsigned char *data, size_t datalen, const struct ast_party_number *number, const char *label, const struct ast_party_number_ies *ies)
08275 {
08276 size_t length;
08277 size_t pos = 0;
08278
08279
08280
08281
08282
08283 if (number->str) {
08284 length = strlen(number->str);
08285 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
08286 ast_log(LOG_WARNING, "No space left for %s number\n", label);
08287 return -1;
08288 }
08289 data[pos++] = ies->str;
08290 data[pos++] = length;
08291 memcpy(data + pos, number->str, length);
08292 pos += length;
08293 }
08294
08295 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08296 ast_log(LOG_WARNING, "No space left for %s numbering plan\n", label);
08297 return -1;
08298 }
08299 data[pos++] = ies->plan;
08300 data[pos++] = 1;
08301 data[pos++] = number->plan;
08302
08303 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08304 ast_log(LOG_WARNING, "No space left for %s number presentation\n", label);
08305 return -1;
08306 }
08307 data[pos++] = ies->presentation;
08308 data[pos++] = 1;
08309 data[pos++] = number->presentation;
08310
08311 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08312 ast_log(LOG_WARNING, "No space left for %s number valid\n", label);
08313 return -1;
08314 }
08315 data[pos++] = ies->valid;
08316 data[pos++] = 1;
08317 data[pos++] = number->valid;
08318
08319 return pos;
08320 }
08321
08322
08323 struct ast_party_subaddress_ies {
08324
08325 int str;
08326
08327 int type;
08328
08329 int odd_even_indicator;
08330
08331 int valid;
08332 };
08333
08334
08335
08336
08337
08338
08339
08340
08341
08342
08343
08344
08345
08346
08347
08348 static int party_subaddress_build_data(unsigned char *data, size_t datalen, const struct ast_party_subaddress *subaddress, const char *label, const struct ast_party_subaddress_ies *ies)
08349 {
08350 size_t length;
08351 size_t pos = 0;
08352
08353
08354
08355
08356
08357 if (subaddress->str) {
08358 length = strlen(subaddress->str);
08359 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
08360 ast_log(LOG_WARNING, "No space left for %s subaddress\n", label);
08361 return -1;
08362 }
08363 data[pos++] = ies->str;
08364 data[pos++] = length;
08365 memcpy(data + pos, subaddress->str, length);
08366 pos += length;
08367 }
08368
08369 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08370 ast_log(LOG_WARNING, "No space left for %s type of subaddress\n", label);
08371 return -1;
08372 }
08373 data[pos++] = ies->type;
08374 data[pos++] = 1;
08375 data[pos++] = subaddress->type;
08376
08377 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08378 ast_log(LOG_WARNING,
08379 "No space left for %s subaddress odd-even indicator\n", label);
08380 return -1;
08381 }
08382 data[pos++] = ies->odd_even_indicator;
08383 data[pos++] = 1;
08384 data[pos++] = subaddress->odd_even_indicator;
08385
08386 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08387 ast_log(LOG_WARNING, "No space left for %s subaddress valid\n", label);
08388 return -1;
08389 }
08390 data[pos++] = ies->valid;
08391 data[pos++] = 1;
08392 data[pos++] = subaddress->valid;
08393
08394 return pos;
08395 }
08396
08397
08398 struct ast_party_id_ies {
08399
08400 struct ast_party_name_ies name;
08401
08402 struct ast_party_number_ies number;
08403
08404 struct ast_party_subaddress_ies subaddress;
08405
08406 int tag;
08407
08408 int combined_presentation;
08409 };
08410
08411
08412
08413
08414
08415
08416
08417
08418
08419
08420
08421
08422
08423
08424
08425
08426 static int party_id_build_data(unsigned char *data, size_t datalen,
08427 const struct ast_party_id *id, const char *label, const struct ast_party_id_ies *ies,
08428 const struct ast_set_party_id *update)
08429 {
08430 size_t length;
08431 size_t pos = 0;
08432 int res;
08433
08434
08435
08436
08437
08438
08439 if (!update || update->name) {
08440 res = party_name_build_data(data + pos, datalen - pos, &id->name, label,
08441 &ies->name);
08442 if (res < 0) {
08443 return -1;
08444 }
08445 pos += res;
08446 }
08447
08448 if (!update || update->number) {
08449 res = party_number_build_data(data + pos, datalen - pos, &id->number, label,
08450 &ies->number);
08451 if (res < 0) {
08452 return -1;
08453 }
08454 pos += res;
08455 }
08456
08457 if (!update || update->subaddress) {
08458 res = party_subaddress_build_data(data + pos, datalen - pos, &id->subaddress,
08459 label, &ies->subaddress);
08460 if (res < 0) {
08461 return -1;
08462 }
08463 pos += res;
08464 }
08465
08466
08467 if (id->tag) {
08468 length = strlen(id->tag);
08469 if (datalen < pos + (sizeof(data[0]) * 2) + length) {
08470 ast_log(LOG_WARNING, "No space left for %s tag\n", label);
08471 return -1;
08472 }
08473 data[pos++] = ies->tag;
08474 data[pos++] = length;
08475 memcpy(data + pos, id->tag, length);
08476 pos += length;
08477 }
08478
08479
08480 if (!update || update->number) {
08481 int presentation;
08482
08483 if (!update || update->name) {
08484 presentation = ast_party_id_presentation(id);
08485 } else {
08486
08487
08488
08489
08490
08491 presentation = id->number.presentation;
08492 }
08493
08494 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08495 ast_log(LOG_WARNING, "No space left for %s combined presentation\n", label);
08496 return -1;
08497 }
08498 data[pos++] = ies->combined_presentation;
08499 data[pos++] = 1;
08500 data[pos++] = presentation;
08501 }
08502
08503 return pos;
08504 }
08505
08506
08507
08508
08509
08510 enum {
08511 AST_CONNECTED_LINE_NUMBER,
08512 AST_CONNECTED_LINE_NAME,
08513 AST_CONNECTED_LINE_NUMBER_PLAN,
08514 AST_CONNECTED_LINE_ID_PRESENTATION,
08515 AST_CONNECTED_LINE_SOURCE,
08516 AST_CONNECTED_LINE_SUBADDRESS,
08517 AST_CONNECTED_LINE_SUBADDRESS_TYPE,
08518 AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN,
08519 AST_CONNECTED_LINE_SUBADDRESS_VALID,
08520 AST_CONNECTED_LINE_TAG,
08521 AST_CONNECTED_LINE_VERSION,
08522 AST_CONNECTED_LINE_NAME_VALID,
08523 AST_CONNECTED_LINE_NAME_CHAR_SET,
08524 AST_CONNECTED_LINE_NAME_PRESENTATION,
08525 AST_CONNECTED_LINE_NUMBER_VALID,
08526 AST_CONNECTED_LINE_NUMBER_PRESENTATION,
08527 };
08528
08529 int ast_connected_line_build_data(unsigned char *data, size_t datalen, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
08530 {
08531 int32_t value;
08532 size_t pos = 0;
08533 int res;
08534
08535 static const struct ast_party_id_ies ies = {
08536 .name.str = AST_CONNECTED_LINE_NAME,
08537 .name.char_set = AST_CONNECTED_LINE_NAME_CHAR_SET,
08538 .name.presentation = AST_CONNECTED_LINE_NAME_PRESENTATION,
08539 .name.valid = AST_CONNECTED_LINE_NAME_VALID,
08540
08541 .number.str = AST_CONNECTED_LINE_NUMBER,
08542 .number.plan = AST_CONNECTED_LINE_NUMBER_PLAN,
08543 .number.presentation = AST_CONNECTED_LINE_NUMBER_PRESENTATION,
08544 .number.valid = AST_CONNECTED_LINE_NUMBER_VALID,
08545
08546 .subaddress.str = AST_CONNECTED_LINE_SUBADDRESS,
08547 .subaddress.type = AST_CONNECTED_LINE_SUBADDRESS_TYPE,
08548 .subaddress.odd_even_indicator = AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN,
08549 .subaddress.valid = AST_CONNECTED_LINE_SUBADDRESS_VALID,
08550
08551 .tag = AST_CONNECTED_LINE_TAG,
08552 .combined_presentation = AST_CONNECTED_LINE_ID_PRESENTATION,
08553 };
08554
08555
08556
08557
08558
08559
08560
08561 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08562 ast_log(LOG_WARNING, "No space left for connected line frame version\n");
08563 return -1;
08564 }
08565 data[pos++] = AST_CONNECTED_LINE_VERSION;
08566 data[pos++] = 1;
08567 data[pos++] = 2;
08568
08569 res = party_id_build_data(data + pos, datalen - pos, &connected->id,
08570 "connected line", &ies, update ? &update->id : NULL);
08571 if (res < 0) {
08572 return -1;
08573 }
08574 pos += res;
08575
08576
08577 if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
08578 ast_log(LOG_WARNING, "No space left for connected line source\n");
08579 return -1;
08580 }
08581 data[pos++] = AST_CONNECTED_LINE_SOURCE;
08582 data[pos++] = sizeof(value);
08583 value = htonl(connected->source);
08584 memcpy(data + pos, &value, sizeof(value));
08585 pos += sizeof(value);
08586
08587 return pos;
08588 }
08589
08590 int ast_connected_line_parse_data(const unsigned char *data, size_t datalen, struct ast_party_connected_line *connected)
08591 {
08592 size_t pos;
08593 unsigned char ie_len;
08594 unsigned char ie_id;
08595 int32_t value;
08596 int frame_version = 1;
08597 int combined_presentation = 0;
08598 int got_combined_presentation = 0;
08599
08600 for (pos = 0; pos < datalen; pos += ie_len) {
08601 if (datalen < pos + sizeof(ie_id) + sizeof(ie_len)) {
08602 ast_log(LOG_WARNING, "Invalid connected line update\n");
08603 return -1;
08604 }
08605 ie_id = data[pos++];
08606 ie_len = data[pos++];
08607 if (datalen < pos + ie_len) {
08608 ast_log(LOG_WARNING, "Invalid connected line update\n");
08609 return -1;
08610 }
08611
08612 switch (ie_id) {
08613
08614 case AST_CONNECTED_LINE_VERSION:
08615 if (ie_len != 1) {
08616 ast_log(LOG_WARNING, "Invalid connected line frame version (%u)\n",
08617 (unsigned) ie_len);
08618 break;
08619 }
08620 frame_version = data[pos];
08621 break;
08622
08623 case AST_CONNECTED_LINE_NAME:
08624 ast_free(connected->id.name.str);
08625 connected->id.name.str = ast_malloc(ie_len + 1);
08626 if (connected->id.name.str) {
08627 memcpy(connected->id.name.str, data + pos, ie_len);
08628 connected->id.name.str[ie_len] = 0;
08629 }
08630 break;
08631 case AST_CONNECTED_LINE_NAME_CHAR_SET:
08632 if (ie_len != 1) {
08633 ast_log(LOG_WARNING, "Invalid connected line name char set (%u)\n",
08634 (unsigned) ie_len);
08635 break;
08636 }
08637 connected->id.name.char_set = data[pos];
08638 break;
08639 case AST_CONNECTED_LINE_NAME_PRESENTATION:
08640 if (ie_len != 1) {
08641 ast_log(LOG_WARNING, "Invalid connected line name presentation (%u)\n",
08642 (unsigned) ie_len);
08643 break;
08644 }
08645 connected->id.name.presentation = data[pos];
08646 break;
08647 case AST_CONNECTED_LINE_NAME_VALID:
08648 if (ie_len != 1) {
08649 ast_log(LOG_WARNING, "Invalid connected line name valid (%u)\n",
08650 (unsigned) ie_len);
08651 break;
08652 }
08653 connected->id.name.valid = data[pos];
08654 break;
08655
08656 case AST_CONNECTED_LINE_NUMBER:
08657 ast_free(connected->id.number.str);
08658 connected->id.number.str = ast_malloc(ie_len + 1);
08659 if (connected->id.number.str) {
08660 memcpy(connected->id.number.str, data + pos, ie_len);
08661 connected->id.number.str[ie_len] = 0;
08662 }
08663 break;
08664 case AST_CONNECTED_LINE_NUMBER_PLAN:
08665 if (ie_len != 1) {
08666 ast_log(LOG_WARNING, "Invalid connected line numbering plan (%u)\n",
08667 (unsigned) ie_len);
08668 break;
08669 }
08670 connected->id.number.plan = data[pos];
08671 break;
08672 case AST_CONNECTED_LINE_NUMBER_PRESENTATION:
08673 if (ie_len != 1) {
08674 ast_log(LOG_WARNING, "Invalid connected line number presentation (%u)\n",
08675 (unsigned) ie_len);
08676 break;
08677 }
08678 connected->id.number.presentation = data[pos];
08679 break;
08680 case AST_CONNECTED_LINE_NUMBER_VALID:
08681 if (ie_len != 1) {
08682 ast_log(LOG_WARNING, "Invalid connected line number valid (%u)\n",
08683 (unsigned) ie_len);
08684 break;
08685 }
08686 connected->id.number.valid = data[pos];
08687 break;
08688
08689 case AST_CONNECTED_LINE_ID_PRESENTATION:
08690 if (ie_len != 1) {
08691 ast_log(LOG_WARNING, "Invalid connected line combined presentation (%u)\n",
08692 (unsigned) ie_len);
08693 break;
08694 }
08695 combined_presentation = data[pos];
08696 got_combined_presentation = 1;
08697 break;
08698
08699 case AST_CONNECTED_LINE_SUBADDRESS:
08700 ast_free(connected->id.subaddress.str);
08701 connected->id.subaddress.str = ast_malloc(ie_len + 1);
08702 if (connected->id.subaddress.str) {
08703 memcpy(connected->id.subaddress.str, data + pos, ie_len);
08704 connected->id.subaddress.str[ie_len] = 0;
08705 }
08706 break;
08707 case AST_CONNECTED_LINE_SUBADDRESS_TYPE:
08708 if (ie_len != 1) {
08709 ast_log(LOG_WARNING, "Invalid connected line type of subaddress (%u)\n",
08710 (unsigned) ie_len);
08711 break;
08712 }
08713 connected->id.subaddress.type = data[pos];
08714 break;
08715 case AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN:
08716 if (ie_len != 1) {
08717 ast_log(LOG_WARNING,
08718 "Invalid connected line subaddress odd-even indicator (%u)\n",
08719 (unsigned) ie_len);
08720 break;
08721 }
08722 connected->id.subaddress.odd_even_indicator = data[pos];
08723 break;
08724 case AST_CONNECTED_LINE_SUBADDRESS_VALID:
08725 if (ie_len != 1) {
08726 ast_log(LOG_WARNING, "Invalid connected line subaddress valid (%u)\n",
08727 (unsigned) ie_len);
08728 break;
08729 }
08730 connected->id.subaddress.valid = data[pos];
08731 break;
08732
08733 case AST_CONNECTED_LINE_TAG:
08734 ast_free(connected->id.tag);
08735 connected->id.tag = ast_malloc(ie_len + 1);
08736 if (connected->id.tag) {
08737 memcpy(connected->id.tag, data + pos, ie_len);
08738 connected->id.tag[ie_len] = 0;
08739 }
08740 break;
08741
08742 case AST_CONNECTED_LINE_SOURCE:
08743 if (ie_len != sizeof(value)) {
08744 ast_log(LOG_WARNING, "Invalid connected line source (%u)\n",
08745 (unsigned) ie_len);
08746 break;
08747 }
08748 memcpy(&value, data + pos, sizeof(value));
08749 connected->source = ntohl(value);
08750 break;
08751
08752 default:
08753 ast_log(LOG_DEBUG, "Unknown connected line element: %u (%u)\n",
08754 (unsigned) ie_id, (unsigned) ie_len);
08755 break;
08756 }
08757 }
08758
08759 switch (frame_version) {
08760 case 1:
08761
08762
08763
08764
08765 connected->id.name.valid = 1;
08766 connected->id.name.char_set = AST_PARTY_CHAR_SET_ISO8859_1;
08767 connected->id.number.valid = 1;
08768 if (got_combined_presentation) {
08769 connected->id.name.presentation = combined_presentation;
08770 connected->id.number.presentation = combined_presentation;
08771 }
08772 break;
08773 case 2:
08774
08775 break;
08776 default:
08777
08778
08779
08780
08781 ast_log(LOG_DEBUG, "Connected line frame has newer version: %u\n",
08782 (unsigned) frame_version);
08783 break;
08784 }
08785
08786 return 0;
08787 }
08788
08789 void ast_channel_update_connected_line(struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
08790 {
08791 unsigned char data[1024];
08792 size_t datalen;
08793
08794 datalen = ast_connected_line_build_data(data, sizeof(data), connected, update);
08795 if (datalen == (size_t) -1) {
08796 return;
08797 }
08798
08799 ast_indicate_data(chan, AST_CONTROL_CONNECTED_LINE, data, datalen);
08800 }
08801
08802 void ast_channel_queue_connected_line_update(struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update)
08803 {
08804 unsigned char data[1024];
08805 size_t datalen;
08806
08807 datalen = ast_connected_line_build_data(data, sizeof(data), connected, update);
08808 if (datalen == (size_t) -1) {
08809 return;
08810 }
08811
08812 ast_queue_control_data(chan, AST_CONTROL_CONNECTED_LINE, data, datalen);
08813 }
08814
08815 void ast_channel_set_redirecting(struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
08816 {
08817 if (&chan->redirecting == redirecting) {
08818
08819 return;
08820 }
08821
08822 ast_channel_lock(chan);
08823 ast_party_redirecting_set(&chan->redirecting, redirecting, update);
08824 ast_channel_unlock(chan);
08825 }
08826
08827
08828
08829
08830
08831 enum {
08832 AST_REDIRECTING_FROM_NUMBER,
08833 AST_REDIRECTING_FROM_NAME,
08834 AST_REDIRECTING_FROM_NUMBER_PLAN,
08835 AST_REDIRECTING_FROM_ID_PRESENTATION,
08836 AST_REDIRECTING_TO_NUMBER,
08837 AST_REDIRECTING_TO_NAME,
08838 AST_REDIRECTING_TO_NUMBER_PLAN,
08839 AST_REDIRECTING_TO_ID_PRESENTATION,
08840 AST_REDIRECTING_REASON,
08841 AST_REDIRECTING_COUNT,
08842 AST_REDIRECTING_FROM_SUBADDRESS,
08843 AST_REDIRECTING_FROM_SUBADDRESS_TYPE,
08844 AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN,
08845 AST_REDIRECTING_FROM_SUBADDRESS_VALID,
08846 AST_REDIRECTING_TO_SUBADDRESS,
08847 AST_REDIRECTING_TO_SUBADDRESS_TYPE,
08848 AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN,
08849 AST_REDIRECTING_TO_SUBADDRESS_VALID,
08850 AST_REDIRECTING_FROM_TAG,
08851 AST_REDIRECTING_TO_TAG,
08852 AST_REDIRECTING_VERSION,
08853 AST_REDIRECTING_FROM_NAME_VALID,
08854 AST_REDIRECTING_FROM_NAME_CHAR_SET,
08855 AST_REDIRECTING_FROM_NAME_PRESENTATION,
08856 AST_REDIRECTING_FROM_NUMBER_VALID,
08857 AST_REDIRECTING_FROM_NUMBER_PRESENTATION,
08858 AST_REDIRECTING_TO_NAME_VALID,
08859 AST_REDIRECTING_TO_NAME_CHAR_SET,
08860 AST_REDIRECTING_TO_NAME_PRESENTATION,
08861 AST_REDIRECTING_TO_NUMBER_VALID,
08862 AST_REDIRECTING_TO_NUMBER_PRESENTATION,
08863 };
08864
08865 int ast_redirecting_build_data(unsigned char *data, size_t datalen, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
08866 {
08867 int32_t value;
08868 size_t pos = 0;
08869 int res;
08870
08871 static const struct ast_party_id_ies from_ies = {
08872 .name.str = AST_REDIRECTING_FROM_NAME,
08873 .name.char_set = AST_REDIRECTING_FROM_NAME_CHAR_SET,
08874 .name.presentation = AST_REDIRECTING_FROM_NAME_PRESENTATION,
08875 .name.valid = AST_REDIRECTING_FROM_NAME_VALID,
08876
08877 .number.str = AST_REDIRECTING_FROM_NUMBER,
08878 .number.plan = AST_REDIRECTING_FROM_NUMBER_PLAN,
08879 .number.presentation = AST_REDIRECTING_FROM_NUMBER_PRESENTATION,
08880 .number.valid = AST_REDIRECTING_FROM_NUMBER_VALID,
08881
08882 .subaddress.str = AST_REDIRECTING_FROM_SUBADDRESS,
08883 .subaddress.type = AST_REDIRECTING_FROM_SUBADDRESS_TYPE,
08884 .subaddress.odd_even_indicator = AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN,
08885 .subaddress.valid = AST_REDIRECTING_FROM_SUBADDRESS_VALID,
08886
08887 .tag = AST_REDIRECTING_FROM_TAG,
08888 .combined_presentation = AST_REDIRECTING_FROM_ID_PRESENTATION,
08889 };
08890 static const struct ast_party_id_ies to_ies = {
08891 .name.str = AST_REDIRECTING_TO_NAME,
08892 .name.char_set = AST_REDIRECTING_TO_NAME_CHAR_SET,
08893 .name.presentation = AST_REDIRECTING_TO_NAME_PRESENTATION,
08894 .name.valid = AST_REDIRECTING_TO_NAME_VALID,
08895
08896 .number.str = AST_REDIRECTING_TO_NUMBER,
08897 .number.plan = AST_REDIRECTING_TO_NUMBER_PLAN,
08898 .number.presentation = AST_REDIRECTING_TO_NUMBER_PRESENTATION,
08899 .number.valid = AST_REDIRECTING_TO_NUMBER_VALID,
08900
08901 .subaddress.str = AST_REDIRECTING_TO_SUBADDRESS,
08902 .subaddress.type = AST_REDIRECTING_TO_SUBADDRESS_TYPE,
08903 .subaddress.odd_even_indicator = AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN,
08904 .subaddress.valid = AST_REDIRECTING_TO_SUBADDRESS_VALID,
08905
08906 .tag = AST_REDIRECTING_TO_TAG,
08907 .combined_presentation = AST_REDIRECTING_TO_ID_PRESENTATION,
08908 };
08909
08910
08911 if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
08912 ast_log(LOG_WARNING, "No space left for redirecting frame version\n");
08913 return -1;
08914 }
08915 data[pos++] = AST_REDIRECTING_VERSION;
08916 data[pos++] = 1;
08917 data[pos++] = 2;
08918
08919 res = party_id_build_data(data + pos, datalen - pos, &redirecting->from,
08920 "redirecting-from", &from_ies, update ? &update->from : NULL);
08921 if (res < 0) {
08922 return -1;
08923 }
08924 pos += res;
08925
08926 res = party_id_build_data(data + pos, datalen - pos, &redirecting->to,
08927 "redirecting-to", &to_ies, update ? &update->to : NULL);
08928 if (res < 0) {
08929 return -1;
08930 }
08931 pos += res;
08932
08933
08934 if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
08935 ast_log(LOG_WARNING, "No space left for redirecting reason\n");
08936 return -1;
08937 }
08938 data[pos++] = AST_REDIRECTING_REASON;
08939 data[pos++] = sizeof(value);
08940 value = htonl(redirecting->reason);
08941 memcpy(data + pos, &value, sizeof(value));
08942 pos += sizeof(value);
08943
08944
08945 if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
08946 ast_log(LOG_WARNING, "No space left for redirecting count\n");
08947 return -1;
08948 }
08949 data[pos++] = AST_REDIRECTING_COUNT;
08950 data[pos++] = sizeof(value);
08951 value = htonl(redirecting->count);
08952 memcpy(data + pos, &value, sizeof(value));
08953 pos += sizeof(value);
08954
08955 return pos;
08956 }
08957
08958 int ast_redirecting_parse_data(const unsigned char *data, size_t datalen, struct ast_party_redirecting *redirecting)
08959 {
08960 size_t pos;
08961 unsigned char ie_len;
08962 unsigned char ie_id;
08963 int32_t value;
08964 int frame_version = 1;
08965 int from_combined_presentation = 0;
08966 int got_from_combined_presentation = 0;
08967 int to_combined_presentation = 0;
08968 int got_to_combined_presentation = 0;
08969
08970 for (pos = 0; pos < datalen; pos += ie_len) {
08971 if (datalen < pos + sizeof(ie_id) + sizeof(ie_len)) {
08972 ast_log(LOG_WARNING, "Invalid redirecting update\n");
08973 return -1;
08974 }
08975 ie_id = data[pos++];
08976 ie_len = data[pos++];
08977 if (datalen < pos + ie_len) {
08978 ast_log(LOG_WARNING, "Invalid redirecting update\n");
08979 return -1;
08980 }
08981
08982 switch (ie_id) {
08983
08984 case AST_REDIRECTING_VERSION:
08985 if (ie_len != 1) {
08986 ast_log(LOG_WARNING, "Invalid redirecting frame version (%u)\n",
08987 (unsigned) ie_len);
08988 break;
08989 }
08990 frame_version = data[pos];
08991 break;
08992
08993 case AST_REDIRECTING_FROM_NAME:
08994 ast_free(redirecting->from.name.str);
08995 redirecting->from.name.str = ast_malloc(ie_len + 1);
08996 if (redirecting->from.name.str) {
08997 memcpy(redirecting->from.name.str, data + pos, ie_len);
08998 redirecting->from.name.str[ie_len] = 0;
08999 }
09000 break;
09001 case AST_REDIRECTING_FROM_NAME_CHAR_SET:
09002 if (ie_len != 1) {
09003 ast_log(LOG_WARNING, "Invalid redirecting-from name char set (%u)\n",
09004 (unsigned) ie_len);
09005 break;
09006 }
09007 redirecting->from.name.char_set = data[pos];
09008 break;
09009 case AST_REDIRECTING_FROM_NAME_PRESENTATION:
09010 if (ie_len != 1) {
09011 ast_log(LOG_WARNING, "Invalid redirecting-from name presentation (%u)\n",
09012 (unsigned) ie_len);
09013 break;
09014 }
09015 redirecting->from.name.presentation = data[pos];
09016 break;
09017 case AST_REDIRECTING_FROM_NAME_VALID:
09018 if (ie_len != 1) {
09019 ast_log(LOG_WARNING, "Invalid redirecting-from name valid (%u)\n",
09020 (unsigned) ie_len);
09021 break;
09022 }
09023 redirecting->from.name.valid = data[pos];
09024 break;
09025
09026 case AST_REDIRECTING_FROM_NUMBER:
09027 ast_free(redirecting->from.number.str);
09028 redirecting->from.number.str = ast_malloc(ie_len + 1);
09029 if (redirecting->from.number.str) {
09030 memcpy(redirecting->from.number.str, data + pos, ie_len);
09031 redirecting->from.number.str[ie_len] = 0;
09032 }
09033 break;
09034 case AST_REDIRECTING_FROM_NUMBER_PLAN:
09035 if (ie_len != 1) {
09036 ast_log(LOG_WARNING, "Invalid redirecting-from numbering plan (%u)\n",
09037 (unsigned) ie_len);
09038 break;
09039 }
09040 redirecting->from.number.plan = data[pos];
09041 break;
09042 case AST_REDIRECTING_FROM_NUMBER_PRESENTATION:
09043 if (ie_len != 1) {
09044 ast_log(LOG_WARNING, "Invalid redirecting-from number presentation (%u)\n",
09045 (unsigned) ie_len);
09046 break;
09047 }
09048 redirecting->from.number.presentation = data[pos];
09049 break;
09050 case AST_REDIRECTING_FROM_NUMBER_VALID:
09051 if (ie_len != 1) {
09052 ast_log(LOG_WARNING, "Invalid redirecting-from number valid (%u)\n",
09053 (unsigned) ie_len);
09054 break;
09055 }
09056 redirecting->from.number.valid = data[pos];
09057 break;
09058
09059 case AST_REDIRECTING_FROM_ID_PRESENTATION:
09060 if (ie_len != 1) {
09061 ast_log(LOG_WARNING, "Invalid redirecting-from combined presentation (%u)\n",
09062 (unsigned) ie_len);
09063 break;
09064 }
09065 from_combined_presentation = data[pos];
09066 got_from_combined_presentation = 1;
09067 break;
09068
09069 case AST_REDIRECTING_FROM_SUBADDRESS:
09070 ast_free(redirecting->from.subaddress.str);
09071 redirecting->from.subaddress.str = ast_malloc(ie_len + 1);
09072 if (redirecting->from.subaddress.str) {
09073 memcpy(redirecting->from.subaddress.str, data + pos, ie_len);
09074 redirecting->from.subaddress.str[ie_len] = 0;
09075 }
09076 break;
09077 case AST_REDIRECTING_FROM_SUBADDRESS_TYPE:
09078 if (ie_len != 1) {
09079 ast_log(LOG_WARNING, "Invalid redirecting-from type of subaddress (%u)\n",
09080 (unsigned) ie_len);
09081 break;
09082 }
09083 redirecting->from.subaddress.type = data[pos];
09084 break;
09085 case AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN:
09086 if (ie_len != 1) {
09087 ast_log(LOG_WARNING,
09088 "Invalid redirecting-from subaddress odd-even indicator (%u)\n",
09089 (unsigned) ie_len);
09090 break;
09091 }
09092 redirecting->from.subaddress.odd_even_indicator = data[pos];
09093 break;
09094 case AST_REDIRECTING_FROM_SUBADDRESS_VALID:
09095 if (ie_len != 1) {
09096 ast_log(LOG_WARNING, "Invalid redirecting-from subaddress valid (%u)\n",
09097 (unsigned) ie_len);
09098 break;
09099 }
09100 redirecting->from.subaddress.valid = data[pos];
09101 break;
09102
09103 case AST_REDIRECTING_FROM_TAG:
09104 ast_free(redirecting->from.tag);
09105 redirecting->from.tag = ast_malloc(ie_len + 1);
09106 if (redirecting->from.tag) {
09107 memcpy(redirecting->from.tag, data + pos, ie_len);
09108 redirecting->from.tag[ie_len] = 0;
09109 }
09110 break;
09111
09112 case AST_REDIRECTING_TO_NAME:
09113 ast_free(redirecting->to.name.str);
09114 redirecting->to.name.str = ast_malloc(ie_len + 1);
09115 if (redirecting->to.name.str) {
09116 memcpy(redirecting->to.name.str, data + pos, ie_len);
09117 redirecting->to.name.str[ie_len] = 0;
09118 }
09119 break;
09120 case AST_REDIRECTING_TO_NAME_CHAR_SET:
09121 if (ie_len != 1) {
09122 ast_log(LOG_WARNING, "Invalid redirecting-to name char set (%u)\n",
09123 (unsigned) ie_len);
09124 break;
09125 }
09126 redirecting->to.name.char_set = data[pos];
09127 break;
09128 case AST_REDIRECTING_TO_NAME_PRESENTATION:
09129 if (ie_len != 1) {
09130 ast_log(LOG_WARNING, "Invalid redirecting-to name presentation (%u)\n",
09131 (unsigned) ie_len);
09132 break;
09133 }
09134 redirecting->to.name.presentation = data[pos];
09135 break;
09136 case AST_REDIRECTING_TO_NAME_VALID:
09137 if (ie_len != 1) {
09138 ast_log(LOG_WARNING, "Invalid redirecting-to name valid (%u)\n",
09139 (unsigned) ie_len);
09140 break;
09141 }
09142 redirecting->to.name.valid = data[pos];
09143 break;
09144
09145 case AST_REDIRECTING_TO_NUMBER:
09146 ast_free(redirecting->to.number.str);
09147 redirecting->to.number.str = ast_malloc(ie_len + 1);
09148 if (redirecting->to.number.str) {
09149 memcpy(redirecting->to.number.str, data + pos, ie_len);
09150 redirecting->to.number.str[ie_len] = 0;
09151 }
09152 break;
09153 case AST_REDIRECTING_TO_NUMBER_PLAN:
09154 if (ie_len != 1) {
09155 ast_log(LOG_WARNING, "Invalid redirecting-to numbering plan (%u)\n",
09156 (unsigned) ie_len);
09157 break;
09158 }
09159 redirecting->to.number.plan = data[pos];
09160 break;
09161 case AST_REDIRECTING_TO_NUMBER_PRESENTATION:
09162 if (ie_len != 1) {
09163 ast_log(LOG_WARNING, "Invalid redirecting-to number presentation (%u)\n",
09164 (unsigned) ie_len);
09165 break;
09166 }
09167 redirecting->to.number.presentation = data[pos];
09168 break;
09169 case AST_REDIRECTING_TO_NUMBER_VALID:
09170 if (ie_len != 1) {
09171 ast_log(LOG_WARNING, "Invalid redirecting-to number valid (%u)\n",
09172 (unsigned) ie_len);
09173 break;
09174 }
09175 redirecting->to.number.valid = data[pos];
09176 break;
09177
09178 case AST_REDIRECTING_TO_ID_PRESENTATION:
09179 if (ie_len != 1) {
09180 ast_log(LOG_WARNING, "Invalid redirecting-to combined presentation (%u)\n",
09181 (unsigned) ie_len);
09182 break;
09183 }
09184 to_combined_presentation = data[pos];
09185 got_to_combined_presentation = 1;
09186 break;
09187
09188 case AST_REDIRECTING_TO_SUBADDRESS:
09189 ast_free(redirecting->to.subaddress.str);
09190 redirecting->to.subaddress.str = ast_malloc(ie_len + 1);
09191 if (redirecting->to.subaddress.str) {
09192 memcpy(redirecting->to.subaddress.str, data + pos, ie_len);
09193 redirecting->to.subaddress.str[ie_len] = 0;
09194 }
09195 break;
09196 case AST_REDIRECTING_TO_SUBADDRESS_TYPE:
09197 if (ie_len != 1) {
09198 ast_log(LOG_WARNING, "Invalid redirecting-to type of subaddress (%u)\n",
09199 (unsigned) ie_len);
09200 break;
09201 }
09202 redirecting->to.subaddress.type = data[pos];
09203 break;
09204 case AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN:
09205 if (ie_len != 1) {
09206 ast_log(LOG_WARNING,
09207 "Invalid redirecting-to subaddress odd-even indicator (%u)\n",
09208 (unsigned) ie_len);
09209 break;
09210 }
09211 redirecting->to.subaddress.odd_even_indicator = data[pos];
09212 break;
09213 case AST_REDIRECTING_TO_SUBADDRESS_VALID:
09214 if (ie_len != 1) {
09215 ast_log(LOG_WARNING, "Invalid redirecting-to subaddress valid (%u)\n",
09216 (unsigned) ie_len);
09217 break;
09218 }
09219 redirecting->to.subaddress.valid = data[pos];
09220 break;
09221
09222 case AST_REDIRECTING_TO_TAG:
09223 ast_free(redirecting->to.tag);
09224 redirecting->to.tag = ast_malloc(ie_len + 1);
09225 if (redirecting->to.tag) {
09226 memcpy(redirecting->to.tag, data + pos, ie_len);
09227 redirecting->to.tag[ie_len] = 0;
09228 }
09229 break;
09230
09231 case AST_REDIRECTING_REASON:
09232 if (ie_len != sizeof(value)) {
09233 ast_log(LOG_WARNING, "Invalid redirecting reason (%u)\n",
09234 (unsigned) ie_len);
09235 break;
09236 }
09237 memcpy(&value, data + pos, sizeof(value));
09238 redirecting->reason = ntohl(value);
09239 break;
09240
09241 case AST_REDIRECTING_COUNT:
09242 if (ie_len != sizeof(value)) {
09243 ast_log(LOG_WARNING, "Invalid redirecting count (%u)\n",
09244 (unsigned) ie_len);
09245 break;
09246 }
09247 memcpy(&value, data + pos, sizeof(value));
09248 redirecting->count = ntohl(value);
09249 break;
09250
09251 default:
09252 ast_log(LOG_DEBUG, "Unknown redirecting element: %u (%u)\n",
09253 (unsigned) ie_id, (unsigned) ie_len);
09254 break;
09255 }
09256 }
09257
09258 switch (frame_version) {
09259 case 1:
09260
09261
09262
09263
09264 redirecting->from.name.valid = 1;
09265 redirecting->from.name.char_set = AST_PARTY_CHAR_SET_ISO8859_1;
09266 redirecting->from.number.valid = 1;
09267 if (got_from_combined_presentation) {
09268 redirecting->from.name.presentation = from_combined_presentation;
09269 redirecting->from.number.presentation = from_combined_presentation;
09270 }
09271
09272 redirecting->to.name.valid = 1;
09273 redirecting->to.name.char_set = AST_PARTY_CHAR_SET_ISO8859_1;
09274 redirecting->to.number.valid = 1;
09275 if (got_to_combined_presentation) {
09276 redirecting->to.name.presentation = to_combined_presentation;
09277 redirecting->to.number.presentation = to_combined_presentation;
09278 }
09279 break;
09280 case 2:
09281
09282 break;
09283 default:
09284
09285
09286
09287
09288 ast_log(LOG_DEBUG, "Redirecting frame has newer version: %u\n",
09289 (unsigned) frame_version);
09290 break;
09291 }
09292
09293 return 0;
09294 }
09295
09296 void ast_channel_update_redirecting(struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
09297 {
09298 unsigned char data[1024];
09299 size_t datalen;
09300
09301 datalen = ast_redirecting_build_data(data, sizeof(data), redirecting, update);
09302 if (datalen == (size_t) -1) {
09303 return;
09304 }
09305
09306 ast_indicate_data(chan, AST_CONTROL_REDIRECTING, data, datalen);
09307 }
09308
09309 void ast_channel_queue_redirecting_update(struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update)
09310 {
09311 unsigned char data[1024];
09312 size_t datalen;
09313
09314 datalen = ast_redirecting_build_data(data, sizeof(data), redirecting, update);
09315 if (datalen == (size_t) -1) {
09316 return;
09317 }
09318
09319 ast_queue_control_data(chan, AST_CONTROL_REDIRECTING, data, datalen);
09320 }
09321
09322 int ast_channel_connected_line_macro(struct ast_channel *autoservice_chan, struct ast_channel *macro_chan, const void *connected_info, int is_caller, int is_frame)
09323 {
09324 const char *macro;
09325 const char *macro_args;
09326 int retval;
09327
09328 ast_channel_lock(macro_chan);
09329 macro = pbx_builtin_getvar_helper(macro_chan, is_caller
09330 ? "CONNECTED_LINE_CALLER_SEND_MACRO" : "CONNECTED_LINE_CALLEE_SEND_MACRO");
09331 macro = ast_strdupa(S_OR(macro, ""));
09332 macro_args = pbx_builtin_getvar_helper(macro_chan, is_caller
09333 ? "CONNECTED_LINE_CALLER_SEND_MACRO_ARGS" : "CONNECTED_LINE_CALLEE_SEND_MACRO_ARGS");
09334 macro_args = ast_strdupa(S_OR(macro_args, ""));
09335
09336 if (ast_strlen_zero(macro)) {
09337 ast_channel_unlock(macro_chan);
09338 return -1;
09339 }
09340
09341 if (is_frame) {
09342 const struct ast_frame *frame = connected_info;
09343
09344 ast_connected_line_parse_data(frame->data.ptr, frame->datalen, ¯o_chan->connected);
09345 } else {
09346 const struct ast_party_connected_line *connected = connected_info;
09347
09348 ast_party_connected_line_copy(¯o_chan->connected, connected);
09349 }
09350 ast_channel_unlock(macro_chan);
09351
09352 if (!(retval = ast_app_run_macro(autoservice_chan, macro_chan, macro, macro_args))) {
09353 ast_channel_lock(macro_chan);
09354 ast_channel_update_connected_line(macro_chan, ¯o_chan->connected, NULL);
09355 ast_channel_unlock(macro_chan);
09356 }
09357
09358 return retval;
09359 }
09360
09361 int ast_channel_redirecting_macro(struct ast_channel *autoservice_chan, struct ast_channel *macro_chan, const void *redirecting_info, int is_caller, int is_frame)
09362 {
09363 const char *macro;
09364 const char *macro_args;
09365 int retval;
09366
09367 ast_channel_lock(macro_chan);
09368 macro = pbx_builtin_getvar_helper(macro_chan, is_caller
09369 ? "REDIRECTING_CALLER_SEND_MACRO" : "REDIRECTING_CALLEE_SEND_MACRO");
09370 macro = ast_strdupa(S_OR(macro, ""));
09371 macro_args = pbx_builtin_getvar_helper(macro_chan, is_caller
09372 ? "REDIRECTING_CALLER_SEND_MACRO_ARGS" : "REDIRECTING_CALLEE_SEND_MACRO_ARGS");
09373 macro_args = ast_strdupa(S_OR(macro_args, ""));
09374
09375 if (ast_strlen_zero(macro)) {
09376 ast_channel_unlock(macro_chan);
09377 return -1;
09378 }
09379
09380 if (is_frame) {
09381 const struct ast_frame *frame = redirecting_info;
09382
09383 ast_redirecting_parse_data(frame->data.ptr, frame->datalen, ¯o_chan->redirecting);
09384 } else {
09385 const struct ast_party_redirecting *redirecting = redirecting_info;
09386
09387 ast_party_redirecting_copy(¯o_chan->redirecting, redirecting);
09388 }
09389 ast_channel_unlock(macro_chan);
09390
09391 retval = ast_app_run_macro(autoservice_chan, macro_chan, macro, macro_args);
09392 if (!retval) {
09393 ast_channel_lock(macro_chan);
09394 ast_channel_update_redirecting(macro_chan, ¯o_chan->redirecting, NULL);
09395 ast_channel_unlock(macro_chan);
09396 }
09397
09398 return retval;
09399 }
09400
09401 static void *channel_cc_params_copy(void *data)
09402 {
09403 const struct ast_cc_config_params *src = data;
09404 struct ast_cc_config_params *dest = ast_cc_config_params_init();
09405 if (!dest) {
09406 return NULL;
09407 }
09408 ast_cc_copy_config_params(dest, src);
09409 return dest;
09410 }
09411
09412 static void channel_cc_params_destroy(void *data)
09413 {
09414 struct ast_cc_config_params *cc_params = data;
09415 ast_cc_config_params_destroy(cc_params);
09416 }
09417
09418 static const struct ast_datastore_info cc_channel_datastore_info = {
09419 .type = "Call Completion",
09420 .duplicate = channel_cc_params_copy,
09421 .destroy = channel_cc_params_destroy,
09422 };
09423
09424 int ast_channel_cc_params_init(struct ast_channel *chan,
09425 const struct ast_cc_config_params *base_params)
09426 {
09427 struct ast_cc_config_params *cc_params;
09428 struct ast_datastore *cc_datastore;
09429
09430 if (!(cc_params = ast_cc_config_params_init())) {
09431 return -1;
09432 }
09433
09434 if (!(cc_datastore = ast_datastore_alloc(&cc_channel_datastore_info, NULL))) {
09435 ast_cc_config_params_destroy(cc_params);
09436 return -1;
09437 }
09438
09439 if (base_params) {
09440 ast_cc_copy_config_params(cc_params, base_params);
09441 }
09442 cc_datastore->data = cc_params;
09443 ast_channel_datastore_add(chan, cc_datastore);
09444 return 0;
09445 }
09446
09447 struct ast_cc_config_params *ast_channel_get_cc_config_params(struct ast_channel *chan)
09448 {
09449 struct ast_datastore *cc_datastore;
09450
09451 if (!(cc_datastore = ast_channel_datastore_find(chan, &cc_channel_datastore_info, NULL))) {
09452
09453
09454
09455
09456 if (ast_channel_cc_params_init(chan, NULL)) {
09457 return NULL;
09458 }
09459 if (!(cc_datastore = ast_channel_datastore_find(chan, &cc_channel_datastore_info, NULL))) {
09460
09461 return NULL;
09462 }
09463 }
09464
09465 ast_assert(cc_datastore->data != NULL);
09466 return cc_datastore->data;
09467 }
09468
09469 int ast_channel_get_device_name(struct ast_channel *chan, char *device_name, size_t name_buffer_length)
09470 {
09471 int len = name_buffer_length;
09472 char *dash;
09473 if (!ast_channel_queryoption(chan, AST_OPTION_DEVICE_NAME, device_name, &len, 0)) {
09474 return 0;
09475 }
09476
09477
09478 ast_copy_string(device_name, chan->name, name_buffer_length);
09479 if ((dash = strrchr(device_name, '-'))) {
09480 *dash = '\0';
09481 }
09482
09483 return 0;
09484 }
09485
09486 int ast_channel_get_cc_agent_type(struct ast_channel *chan, char *agent_type, size_t size)
09487 {
09488 int len = size;
09489 char *slash;
09490
09491 if (!ast_channel_queryoption(chan, AST_OPTION_CC_AGENT_TYPE, agent_type, &len, 0)) {
09492 return 0;
09493 }
09494
09495 ast_copy_string(agent_type, chan->name, size);
09496 if ((slash = strchr(agent_type, '/'))) {
09497 *slash = '\0';
09498 }
09499 return 0;
09500 }
09501
09502
09503
09504
09505
09506
09507
09508
09509
09510
09511 #undef ast_channel_alloc
09512 struct ast_channel __attribute__((format(printf, 10, 11)))
09513 *ast_channel_alloc(int needqueue, int state, const char *cid_num,
09514 const char *cid_name, const char *acctcode,
09515 const char *exten, const char *context,
09516 const char *linkedid, const int amaflag,
09517 const char *name_fmt, ...);
09518 struct ast_channel *ast_channel_alloc(int needqueue, int state, const char *cid_num,
09519 const char *cid_name, const char *acctcode,
09520 const char *exten, const char *context,
09521 const char *linkedid, const int amaflag,
09522 const char *name_fmt, ...)
09523 {
09524 va_list ap1, ap2;
09525 struct ast_channel *result;
09526
09527
09528 va_start(ap1, name_fmt);
09529 va_start(ap2, name_fmt);
09530 result = __ast_channel_alloc_ap(needqueue, state, cid_num, cid_name, acctcode, exten, context,
09531 linkedid, amaflag, __FILE__, __LINE__, __FUNCTION__, name_fmt, ap1, ap2);
09532 va_end(ap1);
09533 va_end(ap2);
09534
09535 return result;
09536 }