channels/chan_skinny.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 1999 - 2005, Digium, Inc.
   5  *
   6  * chan_skinny was developed by Jeremy McNamara & Florian Overkamp
   7  * chan_skinny was heavily modified/fixed by North Antara
   8  *
   9  * See http://www.asterisk.org for more information about
  10  * the Asterisk project. Please do not directly contact
  11  * any of the maintainers of this project for assistance;
  12  * the project provides a web site, mailing lists and IRC
  13  * channels for your use.
  14  *
  15  * This program is free software, distributed under the terms of
  16  * the GNU General Public License Version 2. See the LICENSE file
  17  * at the top of the source tree.
  18  */
  19
  20 /*! \file
  21  *
  22  * \brief Implementation of the Skinny protocol
  23  *
  24  * \author Jeremy McNamara & Florian Overkamp & North Antara
  25  * \ingroup channel_drivers
  26  */
  27
  28
  29 #include "asterisk.h"
  30
  31 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  32
  33 #include <sys/socket.h>
  34 #include <netinet/in.h>
  35 #include <netinet/tcp.h>
  36 #include <sys/ioctl.h>
  37 #include <net/if.h>
  38 #include <fcntl.h>
  39 #include <netdb.h>
  40 #include <arpa/inet.h>
  41 #include <sys/signal.h>
  42 #include <signal.h>
  43 #include <ctype.h>
  44
  45 #include "asterisk/lock.h"
  46 #include "asterisk/channel.h"
  47 #include "asterisk/config.h"
  48 #include "asterisk/module.h"
  49 #include "asterisk/pbx.h"
  50 #include "asterisk/sched.h"
  51 #include "asterisk/io.h"
  52 #include "asterisk/rtp.h"
  53 #include "asterisk/netsock.h"
  54 #include "asterisk/acl.h"
  55 #include "asterisk/callerid.h"
  56 #include "asterisk/cli.h"
  57 #include "asterisk/say.h"
  58 #include "asterisk/cdr.h"
  59 #include "asterisk/astdb.h"
  60 #include "asterisk/features.h"
  61 #include "asterisk/app.h"
  62 #include "asterisk/musiconhold.h"
  63 #include "asterisk/utils.h"
  64 #include "asterisk/dsp.h"
  65 #include "asterisk/stringfields.h"
  66 #include "asterisk/abstract_jb.h"
  67 #include "asterisk/threadstorage.h"
  68 #include "asterisk/devicestate.h"
  69 #include "asterisk/event.h"
  70 #include "asterisk/indications.h"
  71 #include "asterisk/linkedlists.h"
  72
  73 /*************************************
  74  * Skinny/Asterisk Protocol Settings *
  75  *************************************/
  76 static const char tdesc[] = "Skinny Client Control Protocol (Skinny)";
  77 static const char config[] = "skinny.conf";
  78
  79 static int default_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW;
  80 static struct ast_codec_pref default_prefs;
  81
  82 enum skinny_codecs {
  83         SKINNY_CODEC_ALAW = 2,
  84         SKINNY_CODEC_ULAW = 4,
  85         SKINNY_CODEC_G723_1 = 9,
  86         SKINNY_CODEC_G729A = 12,
  87         SKINNY_CODEC_G726_32 = 82, /* XXX Which packing order does this translate to? */
  88         SKINNY_CODEC_H261 = 100,
  89         SKINNY_CODEC_H263 = 101
  90 };
  91
  92 #define DEFAULT_SKINNY_PORT 2000
  93 #define DEFAULT_SKINNY_BACKLOG 2
  94 #define SKINNY_MAX_PACKET 1000
  95
  96 static struct {
  97         unsigned int tos;
  98         unsigned int tos_audio;
  99         unsigned int tos_video;
 100         unsigned int cos;
 101         unsigned int cos_audio;
 102         unsigned int cos_video;
 103 } qos = { 0, 0, 0, 0, 0, 0 };
 104
 105 static int keep_alive = 120;
 106 static char vmexten[AST_MAX_EXTENSION];      /* Voicemail pilot number */
 107 static char used_context[AST_MAX_EXTENSION]; /* placeholder to check if context are already used in regcontext */
 108 static char regcontext[AST_MAX_CONTEXT];     /* Context for auto-extension */
 109 static char date_format[6] = "D-M-Y";
 110 static char version_id[16] = "P002F202";
 111
 112 #if __BYTE_ORDER == __LITTLE_ENDIAN
 113 #define letohl(x) (x)
 114 #define letohs(x) (x)
 115 #define htolel(x) (x)
 116 #define htoles(x) (x)
 117 #else
 118 #if defined(HAVE_BYTESWAP_H)
 119 #include <byteswap.h>
 120 #define letohl(x) bswap_32(x)
 121 #define letohs(x) bswap_16(x)
 122 #define htolel(x) bswap_32(x)
 123 #define htoles(x) bswap_16(x)
 124 #elif defined(HAVE_SYS_ENDIAN_SWAP16)
 125 #include <sys/endian.h>
 126 #define letohl(x) __swap32(x)
 127 #define letohs(x) __swap16(x)
 128 #define htolel(x) __swap32(x)
 129 #define htoles(x) __swap16(x)
 130 #elif defined(HAVE_SYS_ENDIAN_BSWAP16)
 131 #include <sys/endian.h>
 132 #define letohl(x) bswap32(x)
 133 #define letohs(x) bswap16(x)
 134 #define htolel(x) bswap32(x)
 135 #define htoles(x) bswap16(x)
 136 #else
 137 #define __bswap_16(x) \
 138         ((((x) & 0xff00) >> 8) | \
 139          (((x) & 0x00ff) << 8))
 140 #define __bswap_32(x) \
 141         ((((x) & 0xff000000) >> 24) | \
 142          (((x) & 0x00ff0000) >>  8) | \
 143          (((x) & 0x0000ff00) <<  8) | \
 144          (((x) & 0x000000ff) << 24))
 145 #define letohl(x) __bswap_32(x)
 146 #define letohs(x) __bswap_16(x)
 147 #define htolel(x) __bswap_32(x)
 148 #define htoles(x) __bswap_16(x)
 149 #endif
 150 #endif
 151
 152 /*! Global jitterbuffer configuration - by default, jb is disabled */
 153 static struct ast_jb_conf default_jbconf =
 154 {
 155         .flags = 0,
 156         .max_size = -1,
 157         .resync_threshold = -1,
 158         .impl = ""
 159 };
 160 static struct ast_jb_conf global_jbconf;
 161
 162 AST_THREADSTORAGE(device2str_threadbuf);
 163 #define DEVICE2STR_BUFSIZE   15
 164
 165 AST_THREADSTORAGE(control2str_threadbuf);
 166 #define CONTROL2STR_BUFSIZE   100
 167
 168 /*********************
 169  * Protocol Messages *
 170  *********************/
 171 /* message types */
 172 #define KEEP_ALIVE_MESSAGE 0x0000
 173 /* no additional struct */
 174
 175 #define REGISTER_MESSAGE 0x0001
 176 struct register_message {
 177         char name[16];
 178         uint32_t userId;
 179         uint32_t instance;
 180         uint32_t ip;
 181         uint32_t type;
 182         uint32_t maxStreams;
 183 };
 184
 185 #define IP_PORT_MESSAGE 0x0002
 186
 187 #define KEYPAD_BUTTON_MESSAGE 0x0003
 188 struct keypad_button_message {
 189         uint32_t button;
 190         uint32_t lineInstance;
 191         uint32_t callReference;
 192 };
 193
 194
 195 #define ENBLOC_CALL_MESSAGE 0x0004
 196 struct enbloc_call_message {
 197         char calledParty[24];
 198 };
 199
 200 #define STIMULUS_MESSAGE 0x0005
 201 struct stimulus_message {
 202         uint32_t stimulus;
 203         uint32_t stimulusInstance;
 204         uint32_t callreference;
 205 };
 206
 207 #define OFFHOOK_MESSAGE 0x0006
 208 struct offhook_message {
 209         uint32_t instance;
 210         uint32_t reference;
 211 };
 212
 213 #define ONHOOK_MESSAGE 0x0007
 214 struct onhook_message {
 215         uint32_t instance;
 216         uint32_t reference;
 217 };
 218
 219 #define CAPABILITIES_RES_MESSAGE 0x0010
 220 struct station_capabilities {
 221         uint32_t codec;
 222         uint32_t frames;
 223         union {
 224                 char res[8];
 225                 uint32_t rate;
 226         } payloads;
 227 };
 228
 229 #define SKINNY_MAX_CAPABILITIES 18
 230
 231 struct capabilities_res_message {
 232         uint32_t count;
 233         struct station_capabilities caps[SKINNY_MAX_CAPABILITIES];
 234 };
 235
 236 #define SPEED_DIAL_STAT_REQ_MESSAGE 0x000A
 237 struct speed_dial_stat_req_message {
 238         uint32_t speedDialNumber;
 239 };
 240
 241 #define LINE_STATE_REQ_MESSAGE 0x000B
 242 struct line_state_req_message {
 243         uint32_t lineNumber;
 244 };
 245
 246 #define TIME_DATE_REQ_MESSAGE 0x000D
 247 #define BUTTON_TEMPLATE_REQ_MESSAGE 0x000E
 248 #define VERSION_REQ_MESSAGE 0x000F
 249 #define SERVER_REQUEST_MESSAGE 0x0012
 250
 251 #define ALARM_MESSAGE 0x0020
 252 struct alarm_message {
 253         uint32_t alarmSeverity;
 254         char displayMessage[80];
 255         uint32_t alarmParam1;
 256         uint32_t alarmParam2;
 257 };
 258
 259 #define OPEN_RECEIVE_CHANNEL_ACK_MESSAGE 0x0022
 260 struct open_receive_channel_ack_message {
 261         uint32_t status;
 262         uint32_t ipAddr;
 263         uint32_t port;
 264         uint32_t passThruId;
 265 };
 266
 267 #define SOFT_KEY_SET_REQ_MESSAGE 0x0025
 268
 269 #define SOFT_KEY_EVENT_MESSAGE 0x0026
 270 struct soft_key_event_message {
 271         uint32_t softKeyEvent;
 272         uint32_t instance;
 273         uint32_t callreference;
 274 };
 275
 276 #define UNREGISTER_MESSAGE 0x0027
 277 #define SOFT_KEY_TEMPLATE_REQ_MESSAGE 0x0028
 278 #define HEADSET_STATUS_MESSAGE 0x002B
 279 #define REGISTER_AVAILABLE_LINES_MESSAGE 0x002D
 280
 281 #define REGISTER_ACK_MESSAGE 0x0081
 282 struct register_ack_message {
 283         uint32_t keepAlive;
 284         char dateTemplate[6];
 285         char res[2];
 286         uint32_t secondaryKeepAlive;
 287         char res2[4];
 288 };
 289
 290 #define START_TONE_MESSAGE 0x0082
 291 struct start_tone_message {
 292         uint32_t tone;
 293         uint32_t space;
 294         uint32_t instance;
 295         uint32_t reference;
 296 };
 297
 298 #define STOP_TONE_MESSAGE 0x0083
 299 struct stop_tone_message {
 300         uint32_t instance;
 301         uint32_t reference;
 302 };
 303
 304 #define SET_RINGER_MESSAGE 0x0085
 305 struct set_ringer_message {
 306         uint32_t ringerMode;
 307         uint32_t unknown1; /* See notes in transmit_ringer_mode */
 308         uint32_t unknown2;
 309         uint32_t space[2];
 310 };
 311
 312 #define SET_LAMP_MESSAGE 0x0086
 313 struct set_lamp_message {
 314         uint32_t stimulus;
 315         uint32_t stimulusInstance;
 316         uint32_t deviceStimulus;
 317 };
 318
 319 #define SET_SPEAKER_MESSAGE 0x0088
 320 struct set_speaker_message {
 321         uint32_t mode;
 322 };
 323
 324 /* XXX When do we need to use this? */
 325 #define SET_MICROPHONE_MESSAGE 0x0089
 326 struct set_microphone_message {
 327         uint32_t mode;
 328 };
 329
 330 #define START_MEDIA_TRANSMISSION_MESSAGE 0x008A
 331 struct media_qualifier {
 332         uint32_t precedence;
 333         uint32_t vad;
 334         uint16_t packets;
 335         uint32_t bitRate;
 336 };
 337
 338 struct start_media_transmission_message {
 339         uint32_t conferenceId;
 340         uint32_t passThruPartyId;
 341         uint32_t remoteIp;
 342         uint32_t remotePort;
 343         uint32_t packetSize;
 344         uint32_t payloadType;
 345         struct media_qualifier qualifier;
 346         uint32_t space[16];
 347 };
 348
 349 #define STOP_MEDIA_TRANSMISSION_MESSAGE 0x008B
 350 struct stop_media_transmission_message {
 351         uint32_t conferenceId;
 352         uint32_t passThruPartyId;
 353         uint32_t space[3];
 354 };
 355
 356 #define CALL_INFO_MESSAGE 0x008F
 357 struct call_info_message {
 358         char callingPartyName[40];
 359         char callingParty[24];
 360         char calledPartyName[40];
 361         char calledParty[24];
 362         uint32_t instance;
 363         uint32_t reference;
 364         uint32_t type;
 365         char originalCalledPartyName[40];
 366         char originalCalledParty[24];
 367         char lastRedirectingPartyName[40];
 368         char lastRedirectingParty[24];
 369         uint32_t originalCalledPartyRedirectReason;
 370         uint32_t lastRedirectingReason;
 371         char callingPartyVoiceMailbox[24];
 372         char calledPartyVoiceMailbox[24];
 373         char originalCalledPartyVoiceMailbox[24];
 374         char lastRedirectingVoiceMailbox[24];
 375         uint32_t space[3];
 376 };
 377
 378 #define FORWARD_STAT_MESSAGE 0x0090
 379 struct forward_stat_message {
 380         uint32_t activeforward;
 381         uint32_t lineNumber;
 382         uint32_t fwdall;
 383         char fwdallnum[24];
 384         uint32_t fwdbusy;
 385         char fwdbusynum[24];
 386         uint32_t fwdnoanswer;
 387         char fwdnoanswernum[24];
 388 };
 389
 390 #define SPEED_DIAL_STAT_RES_MESSAGE 0x0091
 391 struct speed_dial_stat_res_message {
 392         uint32_t speedDialNumber;
 393         char speedDialDirNumber[24];
 394         char speedDialDisplayName[40];
 395 };
 396
 397 #define LINE_STAT_RES_MESSAGE 0x0092
 398 struct line_stat_res_message {
 399         uint32_t lineNumber;
 400         char lineDirNumber[24];
 401         char lineDisplayName[24];
 402         uint32_t space[15];
 403 };
 404
 405 #define DEFINETIMEDATE_MESSAGE 0x0094
 406 struct definetimedate_message {
 407         uint32_t year; /* since 1900 */
 408         uint32_t month;
 409         uint32_t dayofweek; /* monday = 1 */
 410         uint32_t day;
 411         uint32_t hour;
 412         uint32_t minute;
 413         uint32_t seconds;
 414         uint32_t milliseconds;
 415         uint32_t timestamp;
 416 };
 417
 418 #define BUTTON_TEMPLATE_RES_MESSAGE 0x0097
 419 struct button_definition {
 420         uint8_t instanceNumber;
 421         uint8_t buttonDefinition;
 422 };
 423
 424 struct button_definition_template {
 425         uint8_t buttonDefinition;
 426         /* for now, anything between 0xB0 and 0xCF is custom */
 427         /*int custom;*/
 428 };
 429
 430 #define STIMULUS_REDIAL 0x01
 431 #define STIMULUS_SPEEDDIAL 0x02
 432 #define STIMULUS_HOLD 0x03
 433 #define STIMULUS_TRANSFER 0x04
 434 #define STIMULUS_FORWARDALL 0x05
 435 #define STIMULUS_FORWARDBUSY 0x06
 436 #define STIMULUS_FORWARDNOANSWER 0x07
 437 #define STIMULUS_DISPLAY 0x08
 438 #define STIMULUS_LINE 0x09
 439 #define STIMULUS_VOICEMAIL 0x0F
 440 #define STIMULUS_AUTOANSWER 0x11
 441 #define STIMULUS_DND 0x3F
 442 #define STIMULUS_CONFERENCE 0x7D
 443 #define STIMULUS_CALLPARK 0x7E
 444 #define STIMULUS_CALLPICKUP 0x7F
 445 #define STIMULUS_NONE 0xFF
 446
 447 /* Button types */
 448 #define BT_REDIAL STIMULUS_REDIAL
 449 #define BT_SPEEDDIAL STIMULUS_SPEEDDIAL
 450 #define BT_HOLD STIMULUS_HOLD
 451 #define BT_TRANSFER STIMULUS_TRANSFER
 452 #define BT_FORWARDALL STIMULUS_FORWARDALL
 453 #define BT_FORWARDBUSY STIMULUS_FORWARDBUSY
 454 #define BT_FORWARDNOANSWER STIMULUS_FORWARDNOANSWER
 455 #define BT_DISPLAY STIMULUS_DISPLAY
 456 #define BT_LINE STIMULUS_LINE
 457 #define BT_VOICEMAIL STIMULUS_VOICEMAIL
 458 #define BT_AUTOANSWER STIMULUS_AUTOANSWER
 459 #define BT_DND STIMULUS_DND
 460 #define BT_CONFERENCE STIMULUS_CONFERENCE
 461 #define BT_CALLPARK STIMULUS_CALLPARK
 462 #define BT_CALLPICKUP STIMULUS_CALLPICKUP
 463 #define BT_NONE 0x00
 464
 465 /* Custom button types - add our own between 0xB0 and 0xCF.
 466    This may need to be revised in the future,
 467    if stimuluses are ever added in this range. */
 468 #define BT_CUST_LINESPEEDDIAL 0xB0 /* line or speeddial with/without hint */
 469 #define BT_CUST_LINE 0xB1          /* line or speeddial with hint only */
 470
 471 struct button_template_res_message {
 472         uint32_t buttonOffset;
 473         uint32_t buttonCount;
 474         uint32_t totalButtonCount;
 475         struct button_definition definition[42];
 476 };
 477
 478 #define VERSION_RES_MESSAGE 0x0098
 479 struct version_res_message {
 480         char version[16];
 481 };
 482
 483 #define DISPLAYTEXT_MESSAGE 0x0099
 484 struct displaytext_message {
 485         char text[40];
 486 };
 487
 488 #define CLEAR_NOTIFY_MESSAGE  0x0115
 489 #define CLEAR_DISPLAY_MESSAGE 0x009A
 490
 491 #define CAPABILITIES_REQ_MESSAGE 0x009B
 492
 493 #define REGISTER_REJ_MESSAGE 0x009D
 494 struct register_rej_message {
 495         char errMsg[33];
 496 };
 497
 498 #define SERVER_RES_MESSAGE 0x009E
 499 struct server_identifier {
 500         char serverName[48];
 501 };
 502
 503 struct server_res_message {
 504         struct server_identifier server[5];
 505         uint32_t serverListenPort[5];
 506         uint32_t serverIpAddr[5];
 507 };
 508
 509 #define RESET_MESSAGE 0x009F
 510 struct reset_message {
 511         uint32_t resetType;
 512 };
 513
 514 #define KEEP_ALIVE_ACK_MESSAGE 0x0100
 515
 516 #define OPEN_RECEIVE_CHANNEL_MESSAGE 0x0105
 517 struct open_receive_channel_message {
 518         uint32_t conferenceId;
 519         uint32_t partyId;
 520         uint32_t packets;
 521         uint32_t capability;
 522         uint32_t echo;
 523         uint32_t bitrate;
 524         uint32_t space[16];
 525 };
 526
 527 #define CLOSE_RECEIVE_CHANNEL_MESSAGE 0x0106
 528 struct close_receive_channel_message {
 529         uint32_t conferenceId;
 530         uint32_t partyId;
 531         uint32_t space[2];
 532 };
 533
 534 #define SOFT_KEY_TEMPLATE_RES_MESSAGE 0x0108
 535
 536 struct soft_key_template_definition {
 537         char softKeyLabel[16];
 538         uint32_t softKeyEvent;
 539 };
 540
 541 #define KEYDEF_ONHOOK 0
 542 #define KEYDEF_CONNECTED 1
 543 #define KEYDEF_ONHOLD 2
 544 #define KEYDEF_RINGIN 3
 545 #define KEYDEF_OFFHOOK 4
 546 #define KEYDEF_CONNWITHTRANS 5
 547 #define KEYDEF_DADFD 6 /* Digits After Dialing First Digit */
 548 #define KEYDEF_CONNWITHCONF 7
 549 #define KEYDEF_RINGOUT 8
 550 #define KEYDEF_OFFHOOKWITHFEAT 9
 551 #define KEYDEF_UNKNOWN 10
 552
 553 #define SOFTKEY_NONE 0x00
 554 #define SOFTKEY_REDIAL 0x01
 555 #define SOFTKEY_NEWCALL 0x02
 556 #define SOFTKEY_HOLD 0x03
 557 #define SOFTKEY_TRNSFER 0x04
 558 #define SOFTKEY_CFWDALL 0x05
 559 #define SOFTKEY_CFWDBUSY 0x06
 560 #define SOFTKEY_CFWDNOANSWER 0x07
 561 #define SOFTKEY_BKSPC 0x08
 562 #define SOFTKEY_ENDCALL 0x09
 563 #define SOFTKEY_RESUME 0x0A
 564 #define SOFTKEY_ANSWER 0x0B
 565 #define SOFTKEY_INFO 0x0C
 566 #define SOFTKEY_CONFRN 0x0D
 567 #define SOFTKEY_PARK 0x0E
 568 #define SOFTKEY_JOIN 0x0F
 569 #define SOFTKEY_MEETME 0x10
 570 #define SOFTKEY_PICKUP 0x11
 571 #define SOFTKEY_GPICKUP 0x12
 572 #define SOFTKEY_DND 0x13
 573 #define SOFTKEY_IDIVERT 0x14
 574
 575 struct soft_key_template_definition soft_key_template_default[] = {
 576         { "\200\001", SOFTKEY_REDIAL },
 577         { "\200\002", SOFTKEY_NEWCALL },
 578         { "\200\003", SOFTKEY_HOLD },
 579         { "\200\004", SOFTKEY_TRNSFER },
 580         { "\200\005", SOFTKEY_CFWDALL },
 581         { "\200\006", SOFTKEY_CFWDBUSY },
 582         { "\200\007", SOFTKEY_CFWDNOANSWER },
 583         { "\200\010", SOFTKEY_BKSPC },
 584         { "\200\011", SOFTKEY_ENDCALL },
 585         { "\200\012", SOFTKEY_RESUME },
 586         { "\200\013", SOFTKEY_ANSWER },
 587         { "\200\014", SOFTKEY_INFO },
 588         { "\200\015", SOFTKEY_CONFRN },
 589         { "\200\016", SOFTKEY_PARK },
 590         { "\200\017", SOFTKEY_JOIN },
 591         { "\200\020", SOFTKEY_MEETME },
 592         { "\200\021", SOFTKEY_PICKUP },
 593         { "\200\022", SOFTKEY_GPICKUP },
 594         { "\200\077", SOFTKEY_DND },
 595         { "\200\120", SOFTKEY_IDIVERT },
 596 };
 597
 598 /* Localized message "codes" (in octal)
 599    Below is en_US (taken from a 7970)
 600
 601    \200\xxx
 602        \000: ???
 603        \001: Redial
 604        \002: New Call
 605        \003: Hold
 606        \004: Transfer
 607        \005: CFwdALL
 608        \006: CFwdBusy
 609        \007: CFwdNoAnswer
 610        \010: <<
 611        \011: EndCall
 612        \012: Resume
 613        \013: Answer
 614        \014: Info
 615        \015: Confrn
 616        \016: Park
 617        \017: Join
 618        \020: MeetMe
 619        \021: PickUp
 620        \022: GPickUp
 621        \023: Your current options
 622        \024: Off Hook
 623        \025: On Hook
 624        \026: Ring out
 625        \027: From
 626        \030: Connected
 627        \031: Busy
 628        \032: Line In Use
 629        \033: Call Waiting
 630        \034: Call Transfer
 631        \035: Call Park
 632        \036: Call Proceed
 633        \037: In Use Remote
 634        \040: Enter number
 635        \041: Call park At
 636        \042: Primary Only
 637        \043: Temp Fail
 638        \044: You Have VoiceMail
 639        \045: Forwarded to
 640        \046: Can Not Complete Conference
 641        \047: No Conference Bridge
 642        \050: Can Not Hold Primary Control
 643        \051: Invalid Conference Participant
 644        \052: In Conference Already
 645        \053: No Participant Info
 646        \054: Exceed Maximum Parties
 647        \055: Key Is Not Active
 648        \056: Error No License
 649        \057: Error DBConfig
 650        \060: Error Database
 651        \061: Error Pass Limit
 652        \062: Error Unknown
 653        \063: Error Mismatch
 654        \064: Conference
 655        \065: Park Number
 656        \066: Private
 657        \067: Not Enough Bandwidth
 658        \070: Unknown Number
 659        \071: RmLstC
 660        \072: Voicemail
 661        \073: ImmDiv
 662        \074: Intrcpt
 663        \075: SetWtch
 664        \076: TrnsfVM
 665        \077: DND
 666        \100: DivAll
 667        \101: CallBack
 668        \102: Network congestion,rerouting
 669        \103: Barge
 670        \104: Failed to setup Barge
 671        \105: Another Barge exists
 672        \106: Incompatible device type
 673        \107: No Park Number Available
 674        \110: CallPark Reversion
 675        \111: Service is not Active
 676        \112: High Traffic Try Again Later
 677        \113: QRT
 678        \114: MCID
 679        \115: DirTrfr
 680        \116: Select
 681        \117: ConfList
 682        \120: iDivert
 683        \121: cBarge
 684        \122: Can Not Complete Transfer
 685        \123: Can Not Join Calls
 686        \124: Mcid Successful
 687        \125: Number Not Configured
 688        \126: Security Error
 689        \127: Video Bandwidth Unavailable
 690        \130: VidMode
 691        \131: Max Call Duration Timeout
 692        \132: Max Hold Duration Timeout
 693        \133: OPickUp
 694        \134: ???
 695        \135: ???
 696        \136: ???
 697        \137: ???
 698        \140: ???
 699        \141: External Transfer Restricted
 700        \142: ???
 701        \143: ???
 702        \144: ???
 703        \145: Mac Address
 704        \146: Host Name
 705        \147: Domain Name
 706        \150: IP Address
 707        \151: Subnet Mask
 708        \152: TFTP Server 1
 709        \153: Default Router 1
 710        \154: Default Router 2
 711        \155: Default Router 3
 712        \156: Default Router 4
 713        \157: Default Router 5
 714        \160: DNS Server 1
 715        \161: DNS Server 2
 716        \162: DNS Server 3
 717        \163: DNS Server 4
 718        \164: DNS Server 5
 719        \165: Operational VLAN Id
 720        \166: Admin. VLAN Id
 721        \167: CallManager 1
 722        \170: CallManager 2
 723        \171: CallManager 3
 724        \172: CallManager 4
 725        \173: CallManager 5
 726        \174: Information URL
 727        \175: Directories URL
 728        \176: Messages URL
 729        \177: Services URL
 730  */
 731
 732 struct soft_key_definitions {
 733         const uint8_t mode;
 734         const uint8_t *defaults;
 735         const int count;
 736 };
 737
 738 static const uint8_t soft_key_default_onhook[] = {
 739         SOFTKEY_REDIAL,
 740         SOFTKEY_NEWCALL,
 741         SOFTKEY_CFWDALL,
 742         SOFTKEY_CFWDBUSY,
 743         SOFTKEY_DND,
 744         /*SOFTKEY_GPICKUP,
 745         SOFTKEY_CONFRN,*/
 746 };
 747
 748 static const uint8_t soft_key_default_connected[] = {
 749         SOFTKEY_HOLD,
 750         SOFTKEY_ENDCALL,
 751         SOFTKEY_TRNSFER,
 752         SOFTKEY_PARK,
 753         SOFTKEY_CFWDALL,
 754         SOFTKEY_CFWDBUSY,
 755 };
 756
 757 static const uint8_t soft_key_default_onhold[] = {
 758         SOFTKEY_RESUME,
 759         SOFTKEY_NEWCALL,
 760         SOFTKEY_ENDCALL,
 761         SOFTKEY_TRNSFER,
 762 };
 763
 764 static const uint8_t soft_key_default_ringin[] = {
 765         SOFTKEY_ANSWER,
 766         SOFTKEY_ENDCALL,
 767         SOFTKEY_TRNSFER,
 768 };
 769
 770 static const uint8_t soft_key_default_offhook[] = {
 771         SOFTKEY_REDIAL,
 772         SOFTKEY_ENDCALL,
 773         SOFTKEY_CFWDALL,
 774         SOFTKEY_CFWDBUSY,
 775         /*SOFTKEY_GPICKUP,*/
 776 };
 777
 778 static const uint8_t soft_key_default_connwithtrans[] = {
 779         SOFTKEY_HOLD,
 780         SOFTKEY_ENDCALL,
 781         SOFTKEY_TRNSFER,
 782         SOFTKEY_PARK,
 783         SOFTKEY_CFWDALL,
 784         SOFTKEY_CFWDBUSY,
 785 };
 786
 787 static const uint8_t soft_key_default_dadfd[] = {
 788         SOFTKEY_BKSPC,
 789         SOFTKEY_ENDCALL,
 790 };
 791
 792 static const uint8_t soft_key_default_connwithconf[] = {
 793         SOFTKEY_NONE,
 794 };
 795
 796 static const uint8_t soft_key_default_ringout[] = {
 797         SOFTKEY_NONE,
 798         SOFTKEY_ENDCALL,
 799 };
 800
 801 static const uint8_t soft_key_default_offhookwithfeat[] = {
 802         SOFTKEY_REDIAL,
 803         SOFTKEY_ENDCALL,
 804         SOFTKEY_TRNSFER,
 805 };
 806
 807 static const uint8_t soft_key_default_unknown[] = {
 808         SOFTKEY_NONE,
 809 };
 810
 811 static const struct soft_key_definitions soft_key_default_definitions[] = {
 812         {KEYDEF_ONHOOK, soft_key_default_onhook, sizeof(soft_key_default_onhook) / sizeof(uint8_t)},
 813         {KEYDEF_CONNECTED, soft_key_default_connected, sizeof(soft_key_default_connected) / sizeof(uint8_t)},
 814         {KEYDEF_ONHOLD, soft_key_default_onhold, sizeof(soft_key_default_onhold) / sizeof(uint8_t)},
 815         {KEYDEF_RINGIN, soft_key_default_ringin, sizeof(soft_key_default_ringin) / sizeof(uint8_t)},
 816         {KEYDEF_OFFHOOK, soft_key_default_offhook, sizeof(soft_key_default_offhook) / sizeof(uint8_t)},
 817         {KEYDEF_CONNWITHTRANS, soft_key_default_connwithtrans, sizeof(soft_key_default_connwithtrans) / sizeof(uint8_t)},
 818         {KEYDEF_DADFD, soft_key_default_dadfd, sizeof(soft_key_default_dadfd) / sizeof(uint8_t)},
 819         {KEYDEF_CONNWITHCONF, soft_key_default_connwithconf, sizeof(soft_key_default_connwithconf) / sizeof(uint8_t)},
 820         {KEYDEF_RINGOUT, soft_key_default_ringout, sizeof(soft_key_default_ringout) / sizeof(uint8_t)},
 821         {KEYDEF_OFFHOOKWITHFEAT, soft_key_default_offhookwithfeat, sizeof(soft_key_default_offhookwithfeat) / sizeof(uint8_t)},
 822         {KEYDEF_UNKNOWN, soft_key_default_unknown, sizeof(soft_key_default_unknown) / sizeof(uint8_t)}
 823 };
 824
 825 struct soft_key_template_res_message {
 826         uint32_t softKeyOffset;
 827         uint32_t softKeyCount;
 828         uint32_t totalSoftKeyCount;
 829         struct soft_key_template_definition softKeyTemplateDefinition[32];
 830 };
 831
 832 #define SOFT_KEY_SET_RES_MESSAGE 0x0109
 833
 834 struct soft_key_set_definition {
 835         uint8_t softKeyTemplateIndex[16];
 836         uint16_t softKeyInfoIndex[16];
 837 };
 838
 839 struct soft_key_set_res_message {
 840         uint32_t softKeySetOffset;
 841         uint32_t softKeySetCount;
 842         uint32_t totalSoftKeySetCount;
 843         struct soft_key_set_definition softKeySetDefinition[16];
 844         uint32_t res;
 845 };
 846
 847 #define SELECT_SOFT_KEYS_MESSAGE 0x0110
 848 struct select_soft_keys_message {
 849         uint32_t instance;
 850         uint32_t reference;
 851         uint32_t softKeySetIndex;
 852         uint32_t validKeyMask;
 853 };
 854
 855 #define CALL_STATE_MESSAGE 0x0111
 856 struct call_state_message {
 857         uint32_t callState;
 858         uint32_t lineInstance;
 859         uint32_t callReference;
 860         uint32_t space[3];
 861 };
 862
 863 #define DISPLAY_PROMPT_STATUS_MESSAGE 0x0112
 864 struct display_prompt_status_message {
 865         uint32_t messageTimeout;
 866         char promptMessage[32];
 867         uint32_t lineInstance;
 868         uint32_t callReference;
 869         uint32_t space[3];
 870 };
 871
 872 #define CLEAR_PROMPT_MESSAGE  0x0113
 873 struct clear_prompt_message {
 874         uint32_t lineInstance;
 875         uint32_t callReference;
 876 };
 877
 878 #define DISPLAY_NOTIFY_MESSAGE 0x0114
 879 struct display_notify_message {
 880         uint32_t displayTimeout;
 881         char displayMessage[100];
 882 };
 883
 884 #define ACTIVATE_CALL_PLANE_MESSAGE 0x0116
 885 struct activate_call_plane_message {
 886         uint32_t lineInstance;
 887 };
 888
 889 #define DIALED_NUMBER_MESSAGE 0x011D
 890 struct dialed_number_message {
 891         char dialedNumber[24];
 892         uint32_t lineInstance;
 893         uint32_t callReference;
 894 };
 895
 896 union skinny_data {
 897         struct alarm_message alarm;
 898         struct speed_dial_stat_req_message speeddialreq;
 899         struct register_message reg;
 900         struct register_ack_message regack;
 901         struct register_rej_message regrej;
 902         struct capabilities_res_message caps;
 903         struct version_res_message version;
 904         struct button_template_res_message buttontemplate;
 905         struct displaytext_message displaytext;
 906         struct display_prompt_status_message displaypromptstatus;
 907         struct clear_prompt_message clearpromptstatus;
 908         struct definetimedate_message definetimedate;
 909         struct start_tone_message starttone;
 910         struct stop_tone_message stoptone;
 911         struct speed_dial_stat_res_message speeddial;
 912         struct line_state_req_message line;
 913         struct line_stat_res_message linestat;
 914         struct soft_key_set_res_message softkeysets;
 915         struct soft_key_template_res_message softkeytemplate;
 916         struct server_res_message serverres;
 917         struct reset_message reset;
 918         struct set_lamp_message setlamp;
 919         struct set_ringer_message setringer;
 920         struct call_state_message callstate;
 921         struct keypad_button_message keypad;
 922         struct select_soft_keys_message selectsoftkey;
 923         struct activate_call_plane_message activatecallplane;
 924         struct stimulus_message stimulus;
 925         struct offhook_message offhook;
 926         struct onhook_message onhook;
 927         struct set_speaker_message setspeaker;
 928         struct set_microphone_message setmicrophone;
 929         struct call_info_message callinfo;
 930         struct start_media_transmission_message startmedia;
 931         struct stop_media_transmission_message stopmedia;
 932         struct open_receive_channel_message openreceivechannel;
 933         struct open_receive_channel_ack_message openreceivechannelack;
 934         struct close_receive_channel_message closereceivechannel;
 935         struct display_notify_message displaynotify;
 936         struct dialed_number_message dialednumber;
 937         struct soft_key_event_message softkeyeventmessage;
 938         struct enbloc_call_message enbloccallmessage;
 939         struct forward_stat_message forwardstat;
 940 };
 941
 942 /* packet composition */
 943 struct skinny_req {
 944         int len;
 945         int res;
 946         int e;
 947         union skinny_data data;
 948 };
 949
 950 /* XXX This is the combined size of the variables above.  (len, res, e)
 951    If more are added, this MUST change.
 952    (sizeof(skinny_req) - sizeof(skinny_data)) DOES NOT WORK on all systems (amd64?). */
 953 int skinny_header_size = 12;
 954
 955 /*****************************
 956  * Asterisk specific globals *
 957  *****************************/
 958
 959 static int skinnydebug = 0;
 960
 961 /* a hostname, portnumber, socket and such is usefull for VoIP protocols */
 962 static struct sockaddr_in bindaddr;
 963 static char ourhost[256];
 964 static int ourport;
 965 static struct in_addr __ourip;
 966 struct ast_hostent ahp;
 967 struct hostent *hp;
 968 static int skinnysock = -1;
 969 static pthread_t accept_t;
 970 static char global_context[AST_MAX_CONTEXT] = "default";
 971 static char language[MAX_LANGUAGE] = "";
 972 static char mohinterpret[MAX_MUSICCLASS] = "default";
 973 static char mohsuggest[MAX_MUSICCLASS] = "";
 974 static char cid_num[AST_MAX_EXTENSION] = "";
 975 static char cid_name[AST_MAX_EXTENSION] = "";
 976 static char linelabel[AST_MAX_EXTENSION] ="";
 977 static char parkinglot[AST_MAX_CONTEXT] ="";
 978 static int nat = 0;
 979 static ast_group_t cur_callergroup = 0;
 980 static ast_group_t cur_pickupgroup = 0;
 981 static int immediate = 0;
 982 static int callwaiting = 0;
 983 static int callreturn = 0;
 984 static int threewaycalling = 0;
 985 static int mwiblink = 0;
 986 /* This is for flashhook transfers */
 987 static int transfer = 0;
 988 static int cancallforward = 0;
 989 /* static int busycount = 3;*/
 990 static char accountcode[AST_MAX_ACCOUNT_CODE] = "";
 991 static char mailbox[AST_MAX_EXTENSION];
 992 static char regexten[AST_MAX_EXTENSION];
 993 static int amaflags = 0;
 994 static int callnums = 1;
 995 static int canreinvite = 0;
 996
 997 #define SKINNY_DEVICE_UNKNOWN -1
 998 #define SKINNY_DEVICE_NONE 0
 999 #define SKINNY_DEVICE_30SPPLUS 1
1000 #define SKINNY_DEVICE_12SPPLUS 2
1001 #define SKINNY_DEVICE_12SP 3
1002 #define SKINNY_DEVICE_12 4
1003 #define SKINNY_DEVICE_30VIP 5
1004 #define SKINNY_DEVICE_7910 6
1005 #define SKINNY_DEVICE_7960 7
1006 #define SKINNY_DEVICE_7940 8
1007 #define SKINNY_DEVICE_7935 9
1008 #define SKINNY_DEVICE_ATA186 12 /* Cisco ATA-186 */
1009 #define SKINNY_DEVICE_7941 115
1010 #define SKINNY_DEVICE_7971 119
1011 #define SKINNY_DEVICE_7914 124 /* Expansion module */
1012 #define SKINNY_DEVICE_7985 302
1013 #define SKINNY_DEVICE_7911 307
1014 #define SKINNY_DEVICE_7961GE 308
1015 #define SKINNY_DEVICE_7941GE 309
1016 #define SKINNY_DEVICE_7931 348
1017 #define SKINNY_DEVICE_7921 365
1018 #define SKINNY_DEVICE_7906 369
1019 #define SKINNY_DEVICE_7962 404 /* Not found */
1020 #define SKINNY_DEVICE_7937 431
1021 #define SKINNY_DEVICE_7942 434
1022 #define SKINNY_DEVICE_7945 435
1023 #define SKINNY_DEVICE_7965 436
1024 #define SKINNY_DEVICE_7975 437
1025 #define SKINNY_DEVICE_7905 20000
1026 #define SKINNY_DEVICE_7920 30002
1027 #define SKINNY_DEVICE_7970 30006
1028 #define SKINNY_DEVICE_7912 30007
1029 #define SKINNY_DEVICE_7902 30008
1030 #define SKINNY_DEVICE_CIPC 30016 /* Cisco IP Communicator */
1031 #define SKINNY_DEVICE_7961 30018
1032 #define SKINNY_DEVICE_7936 30019
1033 #define SKINNY_DEVICE_SCCPGATEWAY_AN 30027 /* Analog gateway */
1034 #define SKINNY_DEVICE_SCCPGATEWAY_BRI 30028 /* BRI gateway */
1035
1036 #define SKINNY_SPEAKERON 1
1037 #define SKINNY_SPEAKEROFF 2
1038
1039 #define SKINNY_MICON 1
1040 #define SKINNY_MICOFF 2
1041
1042 #define SKINNY_OFFHOOK 1
1043 #define SKINNY_ONHOOK 2
1044 #define SKINNY_RINGOUT 3
1045 #define SKINNY_RINGIN 4
1046 #define SKINNY_CONNECTED 5
1047 #define SKINNY_BUSY 6
1048 #define SKINNY_CONGESTION 7
1049 #define SKINNY_HOLD 8
1050 #define SKINNY_CALLWAIT 9
1051 #define SKINNY_TRANSFER 10
1052 #define SKINNY_PARK 11
1053 #define SKINNY_PROGRESS 12
1054 #define SKINNY_CALLREMOTEMULTILINE 13
1055 #define SKINNY_INVALID 14
1056
1057 #define SKINNY_SILENCE 0x00
1058 #define SKINNY_DIALTONE 0x21
1059 #define SKINNY_BUSYTONE 0x23
1060 #define SKINNY_ALERT 0x24
1061 #define SKINNY_REORDER 0x25
1062 #define SKINNY_CALLWAITTONE 0x2D
1063 #define SKINNY_NOTONE 0x7F
1064
1065 #define SKINNY_LAMP_OFF 1
1066 #define SKINNY_LAMP_ON 2
1067 #define SKINNY_LAMP_WINK 3
1068 #define SKINNY_LAMP_FLASH 4
1069 #define SKINNY_LAMP_BLINK 5
1070
1071 #define SKINNY_RING_OFF 1
1072 #define SKINNY_RING_INSIDE 2
1073 #define SKINNY_RING_OUTSIDE 3
1074 #define SKINNY_RING_FEATURE 4
1075
1076 #define SKINNY_CFWD_ALL       (1 << 0)
1077 #define SKINNY_CFWD_BUSY      (1 << 1)
1078 #define SKINNY_CFWD_NOANSWER  (1 << 2)
1079
1080 #define TYPE_TRUNK 1
1081 #define TYPE_LINE 2
1082
1083 /* Skinny rtp stream modes. Do we really need this? */
1084 #define SKINNY_CX_SENDONLY 0
1085 #define SKINNY_CX_RECVONLY 1
1086 #define SKINNY_CX_SENDRECV 2
1087 #define SKINNY_CX_CONF 3
1088 #define SKINNY_CX_CONFERENCE 3
1089 #define SKINNY_CX_MUTE 4
1090 #define SKINNY_CX_INACTIVE 4
1091
1092 #if 0
1093 static char *skinny_cxmodes[] = {
1094         "sendonly",
1095         "recvonly",
1096         "sendrecv",
1097         "confrnce",
1098         "inactive"
1099 };
1100 #endif
1101
1102 /* driver scheduler */
1103 static struct sched_context *sched = NULL;
1104 static struct io_context *io;
1105
1106 /* Protect the monitoring thread, so only one process can kill or start it, and not
1107    when it's doing something critical. */
1108 AST_MUTEX_DEFINE_STATIC(monlock);
1109 /* Protect the network socket */
1110 AST_MUTEX_DEFINE_STATIC(netlock);
1111
1112 /* This is the thread for the monitor which checks for input on the channels
1113    which are not currently in use. */
1114 static pthread_t monitor_thread = AST_PTHREADT_NULL;
1115
1116 /* Wait up to 16 seconds for first digit */
1117 static int firstdigittimeout = 16000;
1118
1119 /* How long to wait for following digits */
1120 static int gendigittimeout = 8000;
1121
1122 /* How long to wait for an extra digit, if there is an ambiguous match */
1123 static int matchdigittimeout = 3000;
1124
1125 struct skinny_subchannel {
1126         ast_mutex_t lock;
1127         struct ast_channel *owner;
1128         struct ast_rtp *rtp;
1129         struct ast_rtp *vrtp;
1130         unsigned int callid;
1131         /* time_t lastouttime; */ /* Unused */
1132         int progress;
1133         int ringing;
1134         int onhold;
1135         /* int lastout; */ /* Unused */
1136         int cxmode;
1137         int nat;
1138         int outgoing;
1139         int alreadygone;
1140         int blindxfer;
1141         int xferor;
1142
1143
1144         AST_LIST_ENTRY(skinny_subchannel) list;
1145         struct skinny_subchannel *related;
1146         struct skinny_line *parent;
1147 };
1148
1149 struct skinny_line {
1150         ast_mutex_t lock;
1151         char name[80];
1152         char label[24]; /* Label that shows next to the line buttons */
1153         char accountcode[AST_MAX_ACCOUNT_CODE];
1154         char exten[AST_MAX_EXTENSION]; /* Extension where to start */
1155         char context[AST_MAX_CONTEXT];
1156         char language[MAX_LANGUAGE];
1157         char cid_num[AST_MAX_EXTENSION]; /* Caller*ID */
1158         char cid_name[AST_MAX_EXTENSION]; /* Caller*ID */
1159         char lastcallerid[AST_MAX_EXTENSION]; /* Last Caller*ID */
1160         int cfwdtype;
1161         char call_forward_all[AST_MAX_EXTENSION];
1162         char call_forward_busy[AST_MAX_EXTENSION];
1163         char call_forward_noanswer[AST_MAX_EXTENSION];
1164         char mailbox[AST_MAX_EXTENSION];
1165         char vmexten[AST_MAX_EXTENSION];
1166         char regexten[AST_MAX_EXTENSION]; /* Extension for auto-extensions */
1167         char regcontext[AST_MAX_CONTEXT]; /* Context for auto-extensions */
1168         char parkinglot[AST_MAX_CONTEXT]; /* Parkinglot for parkedcalls */
1169         char mohinterpret[MAX_MUSICCLASS];
1170         char mohsuggest[MAX_MUSICCLASS];
1171         char lastnumberdialed[AST_MAX_EXTENSION]; /* Last number that was dialed - used for redial */
1172         int curtone; /* Current tone being played */
1173         ast_group_t callgroup;
1174         ast_group_t pickupgroup;
1175         struct ast_event_sub *mwi_event_sub; /* Event based MWI */
1176         int callwaiting;
1177         int transfer;
1178         int threewaycalling;
1179         int mwiblink;
1180         int cancallforward;
1181         int getforward;
1182         int callreturn;
1183         int dnd; /* How does this affect callwait?  Do we just deny a skinny_request if we're dnd? */
1184         int hascallerid;
1185         int hidecallerid;
1186         int amaflags;
1187         int type;
1188         int instance;
1189         int group;
1190         int needdestroy;
1191         int capability;
1192         int nonCodecCapability;
1193         int onhooktime;
1194         int msgstate; /* voicemail message state */
1195         int immediate;
1196         int hookstate;
1197         int nat;
1198         int canreinvite;
1199
1200         struct ast_codec_pref prefs;
1201         struct skinny_subchannel *activesub;
1202         AST_LIST_HEAD(, skinny_subchannel) sub;
1203         AST_LIST_ENTRY(skinny_line) list;
1204         struct skinny_device *parent;
1205         struct ast_variable *chanvars; /*!< Channel variables to set for inbound call */
1206 };
1207
1208 struct skinny_speeddial {
1209         ast_mutex_t lock;
1210         char label[42];
1211         char context[AST_MAX_CONTEXT];
1212         char exten[AST_MAX_EXTENSION];
1213         int instance;
1214         int stateid;
1215         int laststate;
1216         int isHint;
1217
1218         AST_LIST_ENTRY(skinny_speeddial) list;
1219         struct skinny_device *parent;
1220 };
1221
1222 struct skinny_addon {
1223         ast_mutex_t lock;
1224         char type[10];
1225         AST_LIST_ENTRY(skinny_addon) list;
1226         struct skinny_device *parent;
1227 };
1228
1229 struct skinny_device {
1230         /* A device containing one or more lines */
1231         char name[80];
1232         char id[16];
1233         char version_id[16];
1234         char exten[AST_MAX_EXTENSION]; /* Cruddy variable name, pick a better one */
1235         int type;
1236         int registered;
1237         int lastlineinstance;
1238         int lastcallreference;
1239         int capability;
1240         int earlyrtp;
1241         struct sockaddr_in addr;
1242         struct in_addr ourip;
1243         AST_LIST_HEAD(, skinny_line) lines;
1244         AST_LIST_HEAD(, skinny_speeddial) speeddials;
1245         AST_LIST_HEAD(, skinny_addon) addons;
1246         struct ast_codec_pref prefs;
1247         struct ast_ha *ha;
1248         struct skinnysession *session;
1249         struct skinny_line *activeline;
1250         AST_LIST_ENTRY(skinny_device) list;
1251 };
1252
1253 static AST_LIST_HEAD_STATIC(devices, skinny_device);
1254
1255 struct skinnysession {
1256         pthread_t t;
1257         ast_mutex_t lock;
1258         struct sockaddr_in sin;
1259         int fd;
1260         char inbuf[SKINNY_MAX_PACKET];
1261         char outbuf[SKINNY_MAX_PACKET];
1262         struct skinny_device *device;
1263         AST_LIST_ENTRY(skinnysession) list;
1264 };
1265
1266 static AST_LIST_HEAD_STATIC(sessions, skinnysession);
1267
1268 static struct ast_channel *skinny_request(const char *type, int format, void *data, int *cause);
1269 static int skinny_devicestate(void *data);
1270 static int skinny_call(struct ast_channel *ast, char *dest, int timeout);
1271 static int skinny_hangup(struct ast_channel *ast);
1272 static int skinny_answer(struct ast_channel *ast);
1273 static struct ast_frame *skinny_read(struct ast_channel *ast);
1274 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame);
1275 static int skinny_indicate(struct ast_channel *ast, int ind, const void *data, size_t datalen);
1276 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
1277 static int skinny_senddigit_begin(struct ast_channel *ast, char digit);
1278 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration);
1279 static int handle_time_date_req_message(struct skinny_req *req, struct skinnysession *s);
1280
1281 static const struct ast_channel_tech skinny_tech = {
1282         .type = "Skinny",
1283         .description = tdesc,
1284         .capabilities = AST_FORMAT_AUDIO_MASK,
1285         .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER,
1286         .requester = skinny_request,
1287         .devicestate = skinny_devicestate,
1288         .call = skinny_call,
1289         .hangup = skinny_hangup,
1290         .answer = skinny_answer,
1291         .read = skinny_read,
1292         .write = skinny_write,
1293         .indicate = skinny_indicate,
1294         .fixup = skinny_fixup,
1295         .send_digit_begin = skinny_senddigit_begin,
1296         .send_digit_end = skinny_senddigit_end,
1297         .bridge = ast_rtp_bridge,
1298 };
1299
1300 static int skinny_extensionstate_cb(char *context, char* exten, int state, void *data);
1301 static int skinny_transfer(struct skinny_subchannel *sub);
1302
1303 static void *get_button_template(struct skinnysession *s, struct button_definition_template *btn)
1304 {
1305         struct skinny_device *d = s->device;
1306         struct skinny_addon *a;
1307         int i;
1308
1309         switch (d->type) {
1310                 case SKINNY_DEVICE_30SPPLUS:
1311                 case SKINNY_DEVICE_30VIP:
1312                         /* 13 rows, 2 columns */
1313                         for (i = 0; i < 4; i++)
1314                                 (btn++)->buttonDefinition = BT_CUST_LINE;
1315                         (btn++)->buttonDefinition = BT_REDIAL;
1316                         (btn++)->buttonDefinition = BT_VOICEMAIL;
1317                         (btn++)->buttonDefinition = BT_CALLPARK;
1318                         (btn++)->buttonDefinition = BT_FORWARDALL;
1319                         (btn++)->buttonDefinition = BT_CONFERENCE;
1320                         for (i = 0; i < 4; i++)
1321                                 (btn++)->buttonDefinition = BT_NONE;
1322                         for (i = 0; i < 13; i++)
1323                                 (btn++)->buttonDefinition = BT_SPEEDDIAL;
1324
1325                         break;
1326                 case SKINNY_DEVICE_12SPPLUS:
1327                 case SKINNY_DEVICE_12SP:
1328                 case SKINNY_DEVICE_12:
1329                         /* 6 rows, 2 columns */
1330                         for (i = 0; i < 2; i++)
1331                                 (btn++)->buttonDefinition = BT_CUST_LINE;
1332                         for (i = 0; i < 4; i++)
1333                                 (btn++)->buttonDefinition = BT_SPEEDDIAL;
1334                         (btn++)->buttonDefinition = BT_HOLD;
1335                         (btn++)->buttonDefinition = BT_REDIAL;
1336                         (btn++)->buttonDefinition = BT_TRANSFER;
1337                         (btn++)->buttonDefinition = BT_FORWARDALL;
1338                         (btn++)->buttonDefinition = BT_CALLPARK;
1339                         (btn++)->buttonDefinition = BT_VOICEMAIL;
1340                         break;
1341                 case SKINNY_DEVICE_7910:
1342                         (btn++)->buttonDefinition = BT_LINE;
1343                         (btn++)->buttonDefinition = BT_HOLD;
1344                         (btn++)->buttonDefinition = BT_TRANSFER;
1345                         (btn++)->buttonDefinition = BT_DISPLAY;
1346                         (btn++)->buttonDefinition = BT_VOICEMAIL;
1347                         (btn++)->buttonDefinition = BT_CONFERENCE;
1348                         (btn++)->buttonDefinition = BT_FORWARDALL;
1349                         for (i = 0; i < 2; i++)
1350                                 (btn++)->buttonDefinition = BT_SPEEDDIAL;
1351                         (btn++)->buttonDefinition = BT_REDIAL;
1352                         break;
1353                 case SKINNY_DEVICE_7960:
1354                 case SKINNY_DEVICE_7961:
1355                 case SKINNY_DEVICE_7961GE:
1356                 case SKINNY_DEVICE_7962:
1357                 case SKINNY_DEVICE_7965:
1358                         for (i = 0; i < 6; i++)
1359                                 (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
1360                         break;
1361                 case SKINNY_DEVICE_7940:
1362                 case SKINNY_DEVICE_7941:
1363                 case SKINNY_DEVICE_7941GE:
1364                 case SKINNY_DEVICE_7942:
1365                 case SKINNY_DEVICE_7945:
1366                         for (i = 0; i < 2; i++)
1367                                 (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
1368                         break;
1369                 case SKINNY_DEVICE_7935:
1370                 case SKINNY_DEVICE_7936:
1371                         for (i = 0; i < 2; i++)
1372                                 (btn++)->buttonDefinition = BT_LINE;
1373                         break;
1374                 case SKINNY_DEVICE_ATA186:
1375                         (btn++)->buttonDefinition = BT_LINE;
1376                         break;
1377                 case SKINNY_DEVICE_7970:
1378                 case SKINNY_DEVICE_7971:
1379                 case SKINNY_DEVICE_7975:
1380                 case SKINNY_DEVICE_CIPC:
1381                         for (i = 0; i < 8; i++)
1382                                 (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
1383                         break;
1384                 case SKINNY_DEVICE_7985:
1385                         /* XXX I have no idea what the buttons look like on these. */
1386                         ast_log(LOG_WARNING, "Unsupported device type '%d (7985)' found.\n", d->type);
1387                         break;
1388                 case SKINNY_DEVICE_7912:
1389                 case SKINNY_DEVICE_7911:
1390                 case SKINNY_DEVICE_7905:
1391                         (btn++)->buttonDefinition = BT_LINE;
1392                         (btn++)->buttonDefinition = BT_HOLD;
1393                         break;
1394                 case SKINNY_DEVICE_7920:
1395                         /* XXX I don't know if this is right. */
1396                         for (i = 0; i < 4; i++)
1397                                 (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
1398                         break;
1399                 case SKINNY_DEVICE_7921:
1400                         for (i = 0; i < 6; i++)
1401                                 (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
1402                         break;
1403                 case SKINNY_DEVICE_7902:
1404                         ast_log(LOG_WARNING, "Unsupported device type '%d (7902)' found.\n", d->type);
1405                         break;
1406                 case SKINNY_DEVICE_7906:
1407                         ast_log(LOG_WARNING, "Unsupported device type '%d (7906)' found.\n", d->type);
1408                         break;
1409                 case SKINNY_DEVICE_7931:
1410                         ast_log(LOG_WARNING, "Unsupported device type '%d (7931)' found.\n", d->type);
1411                         break;
1412                 case SKINNY_DEVICE_7937:
1413                         ast_log(LOG_WARNING, "Unsupported device type '%d (7937)' found.\n", d->type);
1414                         break;
1415                 case SKINNY_DEVICE_7914:
1416                         ast_log(LOG_WARNING, "Unsupported device type '%d (7914)' found.  Expansion module registered by itself?\n", d->type);
1417                         break;
1418                 case SKINNY_DEVICE_SCCPGATEWAY_AN:
1419                 case SKINNY_DEVICE_SCCPGATEWAY_BRI:
1420                         ast_log(LOG_WARNING, "Unsupported device type '%d (SCCP gateway)' found.\n", d->type);
1421                         break;
1422                 default:
1423                         ast_log(LOG_WARNING, "Unknown device type '%d' found.\n", d->type);
1424                         break;
1425         }
1426
1427         AST_LIST_LOCK(&d->addons);
1428         AST_LIST_TRAVERSE(&d->addons, a, list) {
1429                 if (!strcasecmp(a->type, "7914")) {
1430                         for (i = 0; i < 14; i++)
1431                                 (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
1432                 } else {
1433                         ast_log(LOG_WARNING, "Unknown addon type '%s' found.  Skipping.\n", a->type);
1434                 }
1435         }
1436         AST_LIST_UNLOCK(&d->addons);
1437
1438         return btn;
1439 }
1440
1441 static struct skinny_req *req_alloc(size_t size, int response_message)
1442 {
1443         struct skinny_req *req;
1444
1445         if (!(req = ast_calloc(1, skinny_header_size + size + 4)))
1446                 return NULL;
1447
1448         req->len = htolel(size+4);
1449         req->e = htolel(response_message);
1450
1451         return req;
1452 }
1453
1454 static struct skinny_line *find_line_by_instance(struct skinny_device *d, int instance)
1455 {
1456         struct skinny_line *l;
1457
1458         /*Dialing from on hook or on a 7920 uses instance 0 in requests
1459           but we need to start looking at instance 1 */
1460
1461         if (!instance)
1462                 instance = 1;
1463
1464         AST_LIST_TRAVERSE(&d->lines, l, list){
1465                 if (l->instance == instance)
1466                         break;
1467         }
1468
1469         if (!l) {
1470                 ast_log(LOG_WARNING, "Could not find line with instance '%d' on device '%s'\n", instance, d->name);
1471         }
1472         return l;
1473 }
1474
1475 static struct skinny_line *find_line_by_name(const char *dest)
1476 {
1477         struct skinny_line *l;
1478         struct skinny_line *tmpl = NULL;
1479         struct skinny_device *d;
1480         char line[256];
1481         char *at;
1482         char *device;
1483         int checkdevice = 0;
1484
1485         ast_copy_string(line, dest, sizeof(line));
1486         at = strchr(line, '@');
1487         if (at)
1488                 *at++ = '\0';
1489         device = at;
1490
1491         if (!ast_strlen_zero(device))
1492                 checkdevice = 1;
1493
1494         AST_LIST_LOCK(&devices);
1495         AST_LIST_TRAVERSE(&devices, d, list){
1496                 if (checkdevice && tmpl)
1497                         break;
1498                 else if (!checkdevice) {
1499                         /* This is a match, since we're checking for line on every device. */
1500                 } else if (!strcasecmp(d->name, device)) {
1501                         if (skinnydebug)
1502                                 ast_verb(2, "Found device: %s\n", d->name);
1503                 } else
1504                         continue;
1505
1506                 /* Found the device (or we don't care which device) */
1507                 AST_LIST_TRAVERSE(&d->lines, l, list){
1508                         /* Search for the right line */
1509                         if (!strcasecmp(l->name, line)) {
1510                                 if (tmpl) {
1511                                         ast_verb(2, "Ambiguous line name: %s\n", line);
1512                                         AST_LIST_UNLOCK(&devices);
1513                                         return NULL;
1514                                 } else
1515                                         tmpl = l;
1516                         }
1517                 }
1518         }
1519         AST_LIST_UNLOCK(&devices);
1520         return tmpl;
1521 }
1522
1523 /*!
1524  * implement the setvar config line
1525  */
1526 static struct ast_variable *add_var(const char *buf, struct ast_variable *list)
1527 {
1528         struct ast_variable *tmpvar = NULL;
1529         char *varname = ast_strdupa(buf), *varval = NULL;
1530
1531         if ((varval = strchr(varname,'='))) {
1532                 *varval++ = '\0';
1533                 if ((tmpvar = ast_variable_new(varname, varval, ""))) {
1534                         tmpvar->next = list;
1535                         list = tmpvar;
1536                 }
1537         }
1538         return list;
1539 }
1540
1541 /* It's quicker/easier to find the subchannel when we know the instance number too */
1542 static struct skinny_subchannel *find_subchannel_by_instance_reference(struct skinny_device *d, int instance, int reference)
1543 {
1544         struct skinny_line *l = find_line_by_instance(d, instance);
1545         struct skinny_subchannel *sub;
1546
1547         if (!l) {
1548                 return NULL;
1549         }
1550
1551         /* 7920 phones set call reference to 0, so use the first
1552            sub-channel on the list.
1553            This MIGHT need more love to be right */
1554         if (!reference)
1555                 sub = AST_LIST_FIRST(&l->sub);
1556         else {
1557                 AST_LIST_TRAVERSE(&l->sub, sub, list) {
1558                         if (sub->callid == reference)
1559                                 break;
1560                 }
1561         }
1562         if (!sub) {
1563                 ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s'\n", reference, d->name);
1564         }
1565         return sub;
1566 }
1567
1568 /* Find the subchannel when we only have the callid - this shouldn't happen often */
1569 static struct skinny_subchannel *find_subchannel_by_reference(struct skinny_device *d, int reference)
1570 {
1571         struct skinny_line *l;
1572         struct skinny_subchannel *sub = NULL;
1573
1574         AST_LIST_TRAVERSE(&d->lines, l, list){
1575                 AST_LIST_TRAVERSE(&l->sub, sub, list){
1576                         if (sub->callid == reference)
1577                                 break;
1578                 }
1579                 if (sub)
1580                         break;
1581         }
1582
1583         if (!l) {
1584                 ast_log(LOG_WARNING, "Could not find any lines that contained a subchannel with reference '%d' on device '%s'\n", reference, d->name);
1585         } else {
1586                 if (!sub) {
1587                         ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s@%s'\n", reference, l->name, d->name);
1588                 }
1589         }
1590         return sub;
1591 }
1592
1593 static struct skinny_speeddial *find_speeddial_by_instance(struct skinny_device *d, int instance, int isHint)
1594 {
1595         struct skinny_speeddial *sd;
1596
1597         AST_LIST_TRAVERSE(&d->speeddials, sd, list) {
1598                 if (sd->isHint == isHint && sd->instance == instance)
1599                         break;
1600         }
1601
1602         if (!sd) {
1603                 ast_log(LOG_WARNING, "Could not find speeddial with instance '%d' on device '%s'\n", instance, d->name);
1604         }
1605         return sd;
1606 }
1607
1608 static int codec_skinny2ast(enum skinny_codecs skinnycodec)
1609 {
1610         switch (skinnycodec) {
1611         case SKINNY_CODEC_ALAW:
1612                 return AST_FORMAT_ALAW;
1613         case SKINNY_CODEC_ULAW:
1614                 return AST_FORMAT_ULAW;
1615         case SKINNY_CODEC_G723_1:
1616                 return AST_FORMAT_G723_1;
1617         case SKINNY_CODEC_G729A:
1618                 return AST_FORMAT_G729A;
1619         case SKINNY_CODEC_G726_32:
1620                 return AST_FORMAT_G726_AAL2; /* XXX Is this right? */
1621         case SKINNY_CODEC_H261:
1622                 return AST_FORMAT_H261;
1623         case SKINNY_CODEC_H263:
1624                 return AST_FORMAT_H263;
1625         default:
1626                 return 0;
1627         }
1628 }
1629
1630 static int codec_ast2skinny(int astcodec)
1631 {
1632         switch (astcodec) {
1633         case AST_FORMAT_ALAW:
1634                 return SKINNY_CODEC_ALAW;
1635         case AST_FORMAT_ULAW:
1636                 return SKINNY_CODEC_ULAW;
1637         case AST_FORMAT_G723_1:
1638                 return SKINNY_CODEC_G723_1;
1639         case AST_FORMAT_G729A:
1640                 return SKINNY_CODEC_G729A;
1641         case AST_FORMAT_G726_AAL2: /* XXX Is this right? */
1642                 return SKINNY_CODEC_G726_32;
1643         case AST_FORMAT_H261:
1644                 return SKINNY_CODEC_H261;
1645         case AST_FORMAT_H263:
1646                 return SKINNY_CODEC_H263;
1647         default:
1648                 return 0;
1649         }
1650 }
1651
1652 static int set_callforwards(struct skinny_line *l, const char *cfwd, int cfwdtype)
1653 {
1654         if (!l)
1655                 return 0;
1656
1657         if (!ast_strlen_zero(cfwd)) {
1658                 if (cfwdtype & SKINNY_CFWD_ALL) {
1659                         l->cfwdtype |= SKINNY_CFWD_ALL;
1660                         ast_copy_string(l->call_forward_all, cfwd, sizeof(l->call_forward_all));
1661                 }
1662                 if (cfwdtype & SKINNY_CFWD_BUSY) {
1663                         l->cfwdtype |= SKINNY_CFWD_BUSY;
1664                         ast_copy_string(l->call_forward_busy, cfwd, sizeof(l->call_forward_busy));
1665                 }
1666                 if (cfwdtype & SKINNY_CFWD_NOANSWER) {
1667                         l->cfwdtype |= SKINNY_CFWD_NOANSWER;
1668                         ast_copy_string(l->call_forward_noanswer, cfwd, sizeof(l->call_forward_noanswer));
1669                 }
1670         } else {
1671                 if (cfwdtype & SKINNY_CFWD_ALL) {
1672                         l->cfwdtype &= ~SKINNY_CFWD_ALL;
1673                         memset(l->call_forward_all, 0, sizeof(l->call_forward_all));
1674                 }
1675                 if (cfwdtype & SKINNY_CFWD_BUSY) {
1676                         l->cfwdtype &= ~SKINNY_CFWD_BUSY;
1677                         memset(l->call_forward_busy, 0, sizeof(l->call_forward_busy));
1678                 }
1679                 if (cfwdtype & SKINNY_CFWD_NOANSWER) {
1680                         l->cfwdtype &= ~SKINNY_CFWD_NOANSWER;
1681                         memset(l->call_forward_noanswer, 0, sizeof(l->call_forward_noanswer));
1682                 }
1683         }
1684         return l->cfwdtype;
1685 }
1686
1687 static void cleanup_stale_contexts(char *new, char *old)
1688 {
1689         char *oldcontext, *newcontext, *stalecontext, *stringp, newlist[AST_MAX_CONTEXT];
1690
1691         while ((oldcontext = strsep(&old, "&"))) {
1692                 stalecontext = '\0';
1693                 ast_copy_string(newlist, new, sizeof(newlist));
1694                 stringp = newlist;
1695                 while ((newcontext = strsep(&stringp, "&"))) {
1696                         if (strcmp(newcontext, oldcontext) == 0) {
1697                                 /* This is not the context you're looking for */
1698                                 stalecontext = '\0';
1699                                 break;
1700                         } else if (strcmp(newcontext, oldcontext)) {
1701                                 stalecontext = oldcontext;
1702                         }
1703
1704                 }
1705                 if (stalecontext)
1706                         ast_context_destroy(ast_context_find(stalecontext), "Skinny");
1707         }
1708 }
1709
1710 static void register_exten(struct skinny_line *l)
1711 {
1712         char multi[256];
1713         char *stringp, *ext, *context;
1714
1715         if (ast_strlen_zero(regcontext))
1716                 return;
1717
1718         ast_copy_string(multi, S_OR(l->regexten, l->name), sizeof(multi));
1719         stringp = multi;
1720         while ((ext = strsep(&stringp, "&"))) {
1721                 if ((context = strchr(ext, '@'))) {
1722                         *context++ = '\0'; /* split ext@context */
1723                         if (!ast_context_find(context)) {
1724                                 ast_log(LOG_WARNING, "Context %s must exist in regcontext= in skinny.conf!\n", context);
1725                                 continue;
1726                         }
1727                 } else {
1728                         context = regcontext;
1729                 }
1730                 ast_add_extension(context, 1, ext, 1, NULL, NULL, "Noop",
1731                          ast_strdup(l->name), ast_free_ptr, "Skinny");
1732         }
1733 }
1734
1735 static void unregister_exten(struct skinny_line *l)
1736 {
1737         char multi[256];
1738         char *stringp, *ext, *context;
1739
1740         if (ast_strlen_zero(regcontext))
1741                 return;
1742
1743         ast_copy_string(multi, S_OR(l->regexten, l->name), sizeof(multi));
1744         stringp = multi;
1745         while ((ext = strsep(&stringp, "&"))) {
1746                 if ((context = strchr(ext, '@'))) {
1747                         *context++ = '\0'; /* split ext@context */
1748                         if (!ast_context_find(context)) {
1749                                 ast_log(LOG_WARNING, "Context %s must exist in regcontext= in skinny.conf!\n", context);
1750                                 continue;
1751                         }
1752                 } else {
1753                         context = regcontext;
1754                 }
1755                 ast_context_remove_extension(context, ext, 1, NULL);
1756         }
1757 }
1758
1759 static int skinny_register(struct skinny_req *req, struct skinnysession *s)
1760 {
1761         struct skinny_device *d;
1762         struct skinny_line *l;
1763         struct skinny_speeddial *sd;
1764         struct sockaddr_in sin;
1765         socklen_t slen;
1766
1767         AST_LIST_LOCK(&devices);
1768         AST_LIST_TRAVERSE(&devices, d, list){
1769                 if (!strcasecmp(req->data.reg.name, d->id)
1770                                 && ast_apply_ha(d->ha, &(s->sin))) {
1771                         s->device = d;
1772                         d->type = letohl(req->data.reg.type);
1773                         if (ast_strlen_zero(d->version_id)) {
1774                                 ast_copy_string(d->version_id, version_id, sizeof(d->version_id));
1775                         }
1776                         d->registered = 1;
1777                         d->session = s;
1778
1779                         slen = sizeof(sin);
1780                         if (getsockname(s->fd, (struct sockaddr *)&sin, &slen)) {
1781                                 ast_log(LOG_WARNING, "Cannot get socket name\n");
1782                                 sin.sin_addr = __ourip;
1783                         }
1784                         d->ourip = sin.sin_addr;
1785
1786                         AST_LIST_TRAVERSE(&d->speeddials, sd, list) {
1787                                 sd->stateid = ast_extension_state_add(sd->context, sd->exten, skinny_extensionstate_cb, sd);
1788                         }
1789                         AST_LIST_TRAVERSE(&d->lines, l, list) {
1790                                 register_exten(l);
1791                                 ast_devstate_changed(AST_DEVICE_NOT_INUSE, "Skinny/%s@%s", l->name, d->name);
1792                         }
1793                         break;
1794                 }
1795         }
1796         AST_LIST_UNLOCK(&devices);
1797         if (!d) {
1798                 return 0;
1799         }
1800         return 1;
1801 }
1802
1803 static int skinny_unregister(struct skinny_req *req, struct skinnysession *s)
1804 {
1805         struct skinny_device *d;
1806         struct skinny_line *l;
1807         struct skinny_speeddial *sd;
1808
1809         d = s->device;
1810
1811         if (d) {
1812                 d->session = NULL;
1813                 d->registered = 0;
1814
1815                 AST_LIST_TRAVERSE(&d->speeddials, sd, list) {
1816                         if (sd->stateid > -1)
1817                                 ast_extension_state_del(sd->stateid, NULL);
1818                 }
1819                 AST_LIST_TRAVERSE(&d->lines, l, list) {
1820                         unregister_exten(l);
1821                         ast_devstate_changed(AST_DEVICE_UNAVAILABLE, "Skinny/%s@%s", l->name, d->name);
1822                 }
1823         }
1824
1825         return -1; /* main loop will destroy the session */
1826 }
1827
1828 static int transmit_response(struct skinny_device *d, struct skinny_req *req)
1829 {
1830         struct skinnysession *s = d->session;
1831         int res = 0;
1832
1833         if (!s) {
1834                 ast_log(LOG_WARNING, "Asked to transmit to a non-existent session!\n");
1835                 return -1;
1836         }
1837
1838         ast_mutex_lock(&s->lock);
1839
1840         if (skinnydebug)
1841                 ast_log(LOG_VERBOSE, "writing packet type %04X (%d bytes) to socket %d\n", letohl(req->e), letohl(req->len)+8, s->fd);
1842
1843         if (letohl(req->len > SKINNY_MAX_PACKET) || letohl(req->len < 0)) {
1844                 ast_log(LOG_WARNING, "transmit_response: the length of the request is out of bounds\n");
1845                 ast_mutex_unlock(&s->lock);
1846                 return -1;
1847         }
1848
1849         memset(s->outbuf, 0, sizeof(s->outbuf));
1850         memcpy(s->outbuf, req, skinny_header_size);
1851         memcpy(s->outbuf+skinny_header_size, &req->data, letohl(req->len));
1852
1853         res = write(s->fd, s->outbuf, letohl(req->len)+8);
1854
1855         if (res != letohl(req->len)+8) {
1856                 ast_log(LOG_WARNING, "Transmit: write only sent %d out of %d bytes: %s\n", res, letohl(req->len)+8, strerror(errno));
1857                 if (res == -1) {
1858                         if (skinnydebug)
1859                                 ast_log(LOG_WARNING, "Transmit: Skinny Client was lost, unregistering\n");
1860                         skinny_unregister(NULL, s);
1861                 }
1862
1863         }
1864
1865         ast_mutex_unlock(&s->lock);
1866         return 1;
1867 }
1868
1869 static void transmit_speaker_mode(struct skinny_device *d, int mode)
1870 {
1871         struct skinny_req *req;
1872
1873         if (!(req = req_alloc(sizeof(struct set_speaker_message), SET_SPEAKER_MESSAGE)))
1874                 return;
1875
1876         req->data.setspeaker.mode = htolel(mode);
1877         transmit_response(d, req);
1878 }
1879 /*
1880 static void transmit_microphone_mode(struct skinny_device *d, int mode)
1881 {
1882         struct skinny_req *req;
1883
1884         if (!(req = req_alloc(sizeof(struct set_microphone_message), SET_MICROPHONE_MESSAGE)))
1885                 return;
1886
1887         req->data.setmicrophone.mode = htolel(mode);
1888         transmit_response(d, req);
1889 }
1890 */
1891
1892 static void transmit_callinfo(struct skinny_device *d, const char *fromname, const char *fromnum, const char *toname, const char *tonum, int instance, int callid, int calltype)
1893 {
1894         struct skinny_req *req;
1895
1896         /* We should not be able to get here without a device */
1897         if (!d)
1898                 return;
1899
1900         if (!(req = req_alloc(sizeof(struct call_info_message), CALL_INFO_MESSAGE)))
1901                 return;
1902
1903         if (skinnydebug)
1904                         ast_verb(1, "Setting Callinfo to %s(%s) from %s(%s) on %s(%d)\n", fromname, fromnum, toname, tonum, d->name, instance);
1905
1906         if (fromname) {
1907                 ast_copy_string(req->data.callinfo.callingPartyName, fromname, sizeof(req->data.callinfo.callingPartyName));
1908         }
1909         if (fromnum) {
1910                 ast_copy_string(req->data.callinfo.callingParty, fromnum, sizeof(req->data.callinfo.callingParty));
1911         }
1912         if (toname) {
1913                 ast_copy_string(req->data.callinfo.calledPartyName, toname, sizeof(req->data.callinfo.calledPartyName));
1914         }
1915         if (tonum) {
1916                 ast_copy_string(req->data.callinfo.calledParty, tonum, sizeof(req->data.callinfo.calledParty));
1917         }
1918         req->data.callinfo.instance = htolel(instance);
1919         req->data.callinfo.reference = htolel(callid);
1920         req->data.callinfo.type = htolel(calltype);
1921         transmit_response(d, req);
1922 }
1923
1924 static void transmit_connect(struct skinny_device *d, struct skinny_subchannel *sub)
1925 {
1926         struct skinny_req *req;
1927         struct skinny_line *l = sub->parent;
1928         struct ast_format_list fmt;
1929
1930         if (!(req = req_alloc(sizeof(struct open_receive_channel_message), OPEN_RECEIVE_CHANNEL_MESSAGE)))
1931                 return;
1932
1933         fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
1934
1935         req->data.openreceivechannel.conferenceId = htolel(sub->callid);
1936         req->data.openreceivechannel.partyId = htolel(sub->callid);
1937         req->data.openreceivechannel.packets = htolel(fmt.cur_ms);
1938         req->data.openreceivechannel.capability = htolel(codec_ast2skinny(fmt.bits));
1939         req->data.openreceivechannel.echo = htolel(0);
1940         req->data.openreceivechannel.bitrate = htolel(0);
1941         transmit_response(d, req);
1942 }
1943
1944 static void transmit_tone(struct skinny_device *d, int tone, int instance, int reference)
1945 {
1946         struct skinny_req *req;
1947
1948         if (tone == SKINNY_NOTONE) {
1949                 /* This is bad, mmm'kay? */
1950                 return;
1951         }
1952
1953         if (tone > 0) {
1954                 if (!(req = req_alloc(sizeof(struct start_tone_message), START_TONE_MESSAGE)))
1955                         return;
1956                 req->data.starttone.tone = htolel(tone);
1957                 req->data.starttone.instance = htolel(instance);
1958                 req->data.starttone.reference = htolel(reference);
1959         } else {
1960                 if (!(req = req_alloc(sizeof(struct stop_tone_message), STOP_TONE_MESSAGE)))
1961                         return;
1962                 req->data.stoptone.instance = htolel(instance);
1963                 req->data.stoptone.reference = htolel(reference);
1964         }
1965
1966         if (tone > 0) {
1967                 req->data.starttone.tone = htolel(tone);
1968         }
1969         transmit_response(d, req);
1970 }
1971
1972 static void transmit_selectsoftkeys(struct skinny_device *d, int instance, int callid, int softkey)
1973 {
1974         struct skinny_req *req;
1975
1976         if (!(req = req_alloc(sizeof(struct select_soft_keys_message), SELECT_SOFT_KEYS_MESSAGE)))
1977                 return;
1978
1979         req->data.selectsoftkey.instance = htolel(instance);
1980         req->data.selectsoftkey.reference = htolel(callid);
1981         req->data.selectsoftkey.softKeySetIndex = htolel(softkey);
1982         req->data.selectsoftkey.validKeyMask = htolel(0xFFFFFFFF);
1983         transmit_response(d, req);
1984 }
1985
1986 static void transmit_lamp_indication(struct skinny_device *d, int stimulus, int instance, int indication)
1987 {
1988         struct skinny_req *req;
1989
1990         if (!(req = req_alloc(sizeof(struct set_lamp_message), SET_LAMP_MESSAGE)))
1991                 return;
1992
1993         req->data.setlamp.stimulus = htolel(stimulus);
1994         req->data.setlamp.stimulusInstance = htolel(instance);
1995         req->data.setlamp.deviceStimulus = htolel(indication);
1996         transmit_response(d, req);
1997 }
1998
1999 static void transmit_ringer_mode(struct skinny_device *d, int mode)
2000 {
2001         struct skinny_req *req;
2002
2003         if (skinnydebug)
2004                 ast_verb(1, "Setting ringer mode to '%d'.\n", mode);
2005
2006         if (!(req = req_alloc(sizeof(struct set_ringer_message), SET_RINGER_MESSAGE)))
2007                 return;
2008
2009         req->data.setringer.ringerMode = htolel(mode);
2010         /* XXX okay, I don't quite know what this is, but here's what happens (on a 7960).
2011            Note: The phone will always show as ringing on the display.
2012
2013            1: phone will audibly ring over and over
2014            2: phone will audibly ring only once
2015            any other value, will NOT cause the phone to audibly ring
2016         */
2017         req->data.setringer.unknown1 = htolel(1);
2018         /* XXX the value here doesn't seem to change anything.  Must be higher than 0.
2019            Perhaps a packet capture can shed some light on this. */
2020         req->data.setringer.unknown2 = htolel(1);
2021         transmit_response(d, req);
2022 }
2023
2024 static void transmit_displaymessage(struct skinny_device *d, const char *text, int instance, int reference)
2025 {
2026         struct skinny_req *req;
2027
2028         if (text == 0) {
2029                 if (!(req = req_alloc(0, CLEAR_DISPLAY_MESSAGE)))
2030                         return;
2031
2032                 req->data.clearpromptstatus.lineInstance = instance;
2033                 req->data.clearpromptstatus.callReference = reference;
2034
2035                 if (skinnydebug)
2036                         ast_verb(1, "Clearing Display\n");
2037         } else {
2038                 if (!(req = req_alloc(sizeof(struct displaytext_message), DISPLAYTEXT_MESSAGE)))
2039                         return;
2040
2041                 ast_copy_string(req->data.displaytext.text, text, sizeof(req->data.displaytext.text));
2042                 if (skinnydebug)
2043                         ast_verb(1, "Displaying message '%s'\n", req->data.displaytext.text);
2044         }
2045
2046         transmit_response(d, req);
2047 }
2048
2049 static void transmit_displaynotify(struct skinny_device *d, const char *text, int t)
2050 {
2051         struct skinny_req *req;
2052
2053         if (!(req = req_alloc(sizeof(struct display_notify_message), DISPLAY_NOTIFY_MESSAGE)))
2054                 return;
2055
2056         ast_copy_string(req->data.displaynotify.displayMessage, text, sizeof(req->data.displaynotify.displayMessage));
2057         req->data.displaynotify.displayTimeout = htolel(t);
2058
2059         if (skinnydebug)
2060                 ast_verb(1, "Displaying notify '%s'\n", text);
2061
2062         transmit_response(d, req);
2063 }
2064
2065 static void transmit_displaypromptstatus(struct skinny_device *d, const char *text, int t, int instance, int callid)
2066 {
2067         struct skinny_req *req;
2068
2069         if (text == 0) {
2070                 if (!(req = req_alloc(sizeof(struct clear_prompt_message), CLEAR_PROMPT_MESSAGE)))
2071                         return;
2072
2073                 req->data.clearpromptstatus.lineInstance = htolel(instance);
2074                 req->data.clearpromptstatus.callReference = htolel(callid);
2075
2076                 if (skinnydebug)
2077                         ast_verb(1, "Clearing Prompt\n");
2078         } else {
2079                 if (!(req = req_alloc(sizeof(struct display_prompt_status_message), DISPLAY_PROMPT_STATUS_MESSAGE)))
2080                         return;
2081
2082                 ast_copy_string(req->data.displaypromptstatus.promptMessage, text, sizeof(req->data.displaypromptstatus.promptMessage));
2083                 req->data.displaypromptstatus.messageTimeout = htolel(t);
2084                 req->data.displaypromptstatus.lineInstance = htolel(instance);
2085                 req->data.displaypromptstatus.callReference = htolel(callid);
2086
2087                 if (skinnydebug)
2088                         ast_verb(1, "Displaying Prompt Status '%s'\n", text);
2089         }
2090
2091         transmit_response(d, req);
2092 }
2093
2094 static void transmit_dialednumber(struct skinny_device *d, const char *text, int instance, int callid)
2095 {
2096         struct skinny_req *req;
2097
2098         if (!(req = req_alloc(sizeof(struct dialed_number_message), DIALED_NUMBER_MESSAGE)))
2099                 return;
2100
2101         ast_copy_string(req->data.dialednumber.dialedNumber, text, sizeof(req->data.dialednumber.dialedNumber));
2102         req->data.dialednumber.lineInstance = htolel(instance);
2103         req->data.dialednumber.callReference = htolel(callid);
2104
2105         transmit_response(d, req);
2106 }
2107
2108 static void transmit_closereceivechannel(struct skinny_device *d, struct skinny_subchannel *sub)
2109 {
2110         struct skinny_req *req;
2111
2112         if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
2113                 return;
2114
2115         req->data.closereceivechannel.conferenceId = htolel(0);
2116         req->data.closereceivechannel.partyId = htolel(sub->callid);
2117         transmit_response(d, req);
2118 }
2119
2120 static void transmit_stopmediatransmission(struct skinny_device *d, struct skinny_subchannel *sub)
2121 {
2122         struct skinny_req *req;
2123
2124         if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
2125                 return;
2126
2127         req->data.stopmedia.conferenceId = htolel(0);
2128         req->data.stopmedia.passThruPartyId = htolel(sub->callid);
2129         transmit_response(d, req);
2130 }
2131
2132 static void transmit_activatecallplane(struct skinny_device *d, struct skinny_line *l)
2133 {
2134         struct skinny_req *req;
2135
2136         if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
2137                 return;
2138
2139         req->data.activatecallplane.lineInstance = htolel(l->instance);
2140         transmit_response(d, req);
2141 }
2142
2143 static void transmit_callstateonly(struct skinny_device *d, struct skinny_subchannel *sub, int state)
2144 {
2145         struct skinny_req *req;
2146
2147         if (!(req = req_alloc(sizeof(struct call_state_message), CALL_STATE_MESSAGE)))
2148                 return;
2149
2150         req->data.callstate.callState = htolel(state);
2151         req->data.callstate.lineInstance = htolel(sub->parent->instance);
2152         req->data.callstate.callReference = htolel(sub->callid);
2153         transmit_response(d, req);
2154 }
2155
2156 static void transmit_callstate(struct skinny_device *d, int instance, int state, unsigned callid)
2157 {
2158         struct skinny_req *req;
2159
2160         if (state == SKINNY_ONHOOK) {
2161                 if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
2162                         return;
2163
2164                 req->data.closereceivechannel.conferenceId = htolel(callid);
2165                 req->data.closereceivechannel.partyId = htolel(callid);
2166                 transmit_response(d, req);
2167
2168                 if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
2169                         return;
2170
2171                 req->data.stopmedia.conferenceId = htolel(callid);
2172                 req->data.stopmedia.passThruPartyId = htolel(callid);
2173                 transmit_response(d, req);
2174
2175                 transmit_speaker_mode(d, SKINNY_SPEAKEROFF);
2176
2177                 transmit_displaypromptstatus(d, NULL, 0, instance, callid);
2178         }
2179
2180         if (!(req = req_alloc(sizeof(struct call_state_message), CALL_STATE_MESSAGE)))
2181                 return;
2182
2183         req->data.callstate.callState = htolel(state);
2184         req->data.callstate.lineInstance = htolel(instance);
2185         req->data.callstate.callReference = htolel(callid);
2186         transmit_response(d, req);
2187
2188         if (state == SKINNY_ONHOOK) {
2189                 transmit_selectsoftkeys(d, 0, 0, KEYDEF_ONHOOK);
2190         }
2191
2192         if (state == SKINNY_OFFHOOK || state == SKINNY_ONHOOK) {
2193                 if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
2194                         return;
2195
2196                 req->data.activatecallplane.lineInstance = htolel(instance);
2197                 transmit_response(d, req);
2198         }
2199 }
2200
2201
2202 static void transmit_cfwdstate(struct skinny_device *d, struct skinny_line *l)
2203 {
2204         struct skinny_req *req;
2205         int anyon = 0;
2206
2207         if (!(req = req_alloc(sizeof(struct forward_stat_message), FORWARD_STAT_MESSAGE)))
2208                 return;
2209
2210         if (l->cfwdtype & SKINNY_CFWD_ALL) {
2211                 if (!ast_strlen_zero(l->call_forward_all)) {
2212                         ast_copy_string(req->data.forwardstat.fwdallnum, l->call_forward_all, sizeof(req->data.forwardstat.fwdallnum));
2213                         req->data.forwardstat.fwdall = htolel(1);
2214                         anyon++;
2215                 } else {
2216                         req->data.forwardstat.fwdall = htolel(0);
2217                 }
2218         }
2219         if (l->cfwdtype & SKINNY_CFWD_BUSY) {
2220                 if (!ast_strlen_zero(l->call_forward_busy)) {
2221                         ast_copy_string(req->data.forwardstat.fwdbusynum, l->call_forward_busy, sizeof(req->data.forwardstat.fwdbusynum));
2222                         req->data.forwardstat.fwdbusy = htolel(1);
2223                         anyon++;
2224                 } else {
2225                         req->data.forwardstat.fwdbusy = htolel(0);
2226                 }
2227         }
2228         if (l->cfwdtype & SKINNY_CFWD_NOANSWER) {
2229                 if (!ast_strlen_zero(l->call_forward_noanswer)) {
2230                         ast_copy_string(req->data.forwardstat.fwdnoanswernum, l->call_forward_noanswer, sizeof(req->data.forwardstat.fwdnoanswernum));
2231                         req->data.forwardstat.fwdnoanswer = htolel(1);
2232                         anyon++;
2233                 } else {
2234                         req->data.forwardstat.fwdnoanswer = htolel(0);
2235                 }
2236         }
2237         req->data.forwardstat.lineNumber = htolel(l->instance);
2238         if (anyon)
2239                 req->data.forwardstat.activeforward = htolel(7);
2240         else
2241                 req->data.forwardstat.activeforward = htolel(0);
2242
2243         transmit_response(d, req);
2244 }
2245
2246 static int skinny_extensionstate_cb(char *context, char *exten, int state, void *data)
2247 {
2248         struct skinny_speeddial *sd = data;
2249         struct skinny_device *d = sd->parent;
2250         char hint[AST_MAX_EXTENSION];
2251         int callstate = SKINNY_CALLREMOTEMULTILINE;
2252         int lamp = SKINNY_LAMP_OFF;
2253
2254         switch (state) {
2255         case AST_EXTENSION_DEACTIVATED: /* Retry after a while */
2256         case AST_EXTENSION_REMOVED:     /* Extension is gone */
2257                 ast_verb(2, "Extension state: Watcher for hint %s %s. Notify Device %s\n", exten, state == AST_EXTENSION_DEACTIVATED ? "deactivated" : "removed", d->name);
2258                 sd->stateid = -1;
2259                 callstate = SKINNY_ONHOOK;
2260                 lamp = SKINNY_LAMP_OFF;
2261                 break;
2262         case AST_EXTENSION_RINGING:
2263         case AST_EXTENSION_UNAVAILABLE:
2264                 callstate = SKINNY_RINGIN;
2265                 lamp = SKINNY_LAMP_BLINK;
2266                 break;
2267         case AST_EXTENSION_BUSY: /* callstate = SKINNY_BUSY wasn't wanting to work - I'll settle for this */
2268         case AST_EXTENSION_INUSE:
2269                 callstate = SKINNY_CALLREMOTEMULTILINE;
2270                 lamp = SKINNY_LAMP_ON;
2271                 break;
2272         case AST_EXTENSION_ONHOLD:
2273                 callstate = SKINNY_HOLD;
2274                 lamp = SKINNY_LAMP_WINK;
2275                 break;
2276         case AST_EXTENSION_NOT_INUSE:
2277         default:
2278                 callstate = SKINNY_ONHOOK;
2279                 lamp = SKINNY_LAMP_OFF;
2280                 break;
2281         }
2282
2283         if (ast_get_hint(hint, sizeof(hint), NULL, 0, NULL, sd->context, sd->exten)) {
2284                 /* If they are not registered, we will override notification and show no availability */
2285                 if (ast_device_state(hint) == AST_DEVICE_UNAVAILABLE) {
2286                         callstate = SKINNY_ONHOOK;
2287                         lamp = SKINNY_LAMP_FLASH;
2288                 }
2289         }
2290
2291         transmit_lamp_indication(d, STIMULUS_LINE, sd->instance, lamp);
2292         transmit_callstate(d, sd->instance, callstate, 0);
2293         sd->laststate = state;
2294
2295         return 0;
2296 }
2297
2298 static void mwi_event_cb(const struct ast_event *event, void *userdata)
2299 {
2300         /* This module does not handle MWI in an event-based manner.  However, it
2301          * subscribes to MWI for each mailbox that is configured so that the core
2302          * knows that we care about it.  Then, chan_skinny will get the MWI from the
2303          * event cache instead of checking the mailbox directly. */
2304 }
2305
2306 static int has_voicemail(struct skinny_line *l)
2307 {
2308         int new_msgs;
2309         struct ast_event *event;
2310         char *mbox, *context;
2311
2312         context = mbox = ast_strdupa(l->mailbox);
2313         strsep(&context, "@");
2314         if (ast_strlen_zero(context))
2315                 context = "default";
2316
2317         event = ast_event_get_cached(AST_EVENT_MWI,
2318                 AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, mbox,
2319                 AST_EVENT_IE_CONTEXT, AST_EVENT_IE_PLTYPE_STR, context,
2320                 AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_EXISTS,
2321                 AST_EVENT_IE_END);
2322
2323         if (event) {
2324                 new_msgs = ast_event_get_ie_uint(event, AST_EVENT_IE_NEWMSGS);
2325                 ast_event_destroy(event);
2326         } else
2327                 new_msgs = ast_app_has_voicemail(l->mailbox, NULL);
2328
2329         return new_msgs;
2330 }
2331
2332 static void do_housekeeping(struct skinnysession *s)
2333 {
2334         int device_lamp = 0;
2335         struct skinny_device *d = s->device;
2336         struct skinny_line *l;
2337
2338         /* Update time on device */
2339         handle_time_date_req_message(NULL, s);
2340
2341         /* Set MWI on individual lines */
2342         AST_LIST_TRAVERSE(&d->lines, l, list) {
2343                 if (has_voicemail(l)) {
2344                         if (skinnydebug)
2345                                 ast_verb(1, "Checking for voicemail Skinny %s@%s\n", l->name, d->name);
2346                         if (skinnydebug)
2347                                 ast_verb(1, "Skinny %s@%s has voicemail!\n", l->name, d->name);
2348                         transmit_lamp_indication(d, STIMULUS_VOICEMAIL, l->instance, l->mwiblink?SKINNY_LAMP_BLINK:SKINNY_LAMP_ON);
2349                         device_lamp++;
2350                 } else {
2351                         transmit_lamp_indication(d, STIMULUS_VOICEMAIL, l->instance, SKINNY_LAMP_OFF);
2352                 }
2353         }
2354         /* If at least one line has VM, turn the device level lamp on */
2355         if (device_lamp)
2356                 transmit_lamp_indication(d, STIMULUS_VOICEMAIL, 0, SKINNY_LAMP_ON);
2357         else
2358                 transmit_lamp_indication(d, STIMULUS_VOICEMAIL, 0, SKINNY_LAMP_OFF);
2359 }
2360
2361 /* I do not believe skinny can deal with video.
2362    Anyone know differently? */
2363 /* Yes, it can.  Currently 7985 and Cisco VT Advantage do video. */
2364 static enum ast_rtp_get_result skinny_get_vrtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
2365 {
2366         struct skinny_subchannel *sub = NULL;
2367
2368         if (!(sub = c->tech_pvt) || !(sub->vrtp))
2369                 return AST_RTP_GET_FAILED;
2370
2371         *rtp = sub->vrtp;
2372
2373         return AST_RTP_TRY_NATIVE;
2374 }
2375
2376 static enum ast_rtp_get_result skinny_get_rtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
2377 {
2378         struct skinny_subchannel *sub = NULL;
2379         struct skinny_line *l;
2380         enum ast_rtp_get_result res = AST_RTP_TRY_NATIVE;
2381
2382         if (skinnydebug)
2383                 ast_verb(1, "skinny_get_rtp_peer() Channel = %s\n", c->name);
2384
2385
2386         if (!(sub = c->tech_pvt))
2387                 return AST_RTP_GET_FAILED;
2388
2389         ast_mutex_lock(&sub->lock);
2390
2391         if (!(sub->rtp)){
2392                 ast_mutex_unlock(&sub->lock);
2393                 return AST_RTP_GET_FAILED;
2394         }
2395
2396         *rtp = sub->rtp;
2397
2398         l = sub->parent;
2399
2400         if (!l->canreinvite || l->nat){
2401                 res = AST_RTP_TRY_PARTIAL;
2402                 if (skinnydebug)
2403                         ast_verb(1, "skinny_get_rtp_peer() Using AST_RTP_TRY_PARTIAL \n");
2404         }
2405
2406         ast_mutex_unlock(&sub->lock);
2407
2408         return res;
2409
2410 }
2411
2412 static int skinny_set_rtp_peer(struct ast_channel *c, struct ast_rtp *rtp, struct ast_rtp *vrtp, struct ast_rtp *trtp, int codecs, int nat_active)
2413 {
2414         struct skinny_subchannel *sub;
2415         struct skinny_line *l;
2416         struct skinny_device *d;
2417         struct skinnysession *s;
2418         struct ast_format_list fmt;
2419         struct sockaddr_in us;
2420         struct sockaddr_in them;
2421         struct skinny_req *req;
2422
2423         sub = c->tech_pvt;
2424
2425         if (c->_state != AST_STATE_UP)
2426                 return 0;
2427
2428         if (!sub) {
2429                 return -1;
2430         }
2431
2432         l = sub->parent;
2433         d = l->parent;
2434         s = d->session;
2435
2436         if (rtp){
2437                 ast_rtp_get_peer(rtp, &them);
2438
2439                 /* Shutdown any early-media or previous media on re-invite */
2440                 if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
2441                         return -1;
2442
2443                 req->data.stopmedia.conferenceId = htolel(sub->callid);
2444                 req->data.stopmedia.passThruPartyId = htolel(sub->callid);
2445                 transmit_response(d, req);
2446
2447                 if (skinnydebug)
2448                         ast_verb(1, "Peerip = %s:%d\n", ast_inet_ntoa(them.sin_addr), ntohs(them.sin_port));
2449
2450                 if (!(req = req_alloc(sizeof(struct start_media_transmission_message), START_MEDIA_TRANSMISSION_MESSAGE)))
2451                         return -1;
2452
2453                 fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
2454
2455                 if (skinnydebug)
2456                         ast_verb(1, "Setting payloadType to '%d' (%d ms)\n", fmt.bits, fmt.cur_ms);
2457
2458                 req->data.startmedia.conferenceId = htolel(sub->callid);
2459                 req->data.startmedia.passThruPartyId = htolel(sub->callid);
2460                 if (!(l->canreinvite) || (l->nat)){
2461                         ast_rtp_get_us(rtp, &us);
2462                         req->data.startmedia.remoteIp = htolel(d->ourip.s_addr);
2463                         req->data.startmedia.remotePort = htolel(ntohs(us.sin_port));
2464                 } else {
2465                         req->data.startmedia.remoteIp = htolel(them.sin_addr.s_addr);
2466                         req->data.startmedia.remotePort = htolel(ntohs(them.sin_port));
2467                 }
2468                 req->data.startmedia.packetSize = htolel(fmt.cur_ms);
2469                 req->data.startmedia.payloadType = htolel(codec_ast2skinny(fmt.bits));
2470                 req->data.startmedia.qualifier.precedence = htolel(127);
2471                 req->data.startmedia.qualifier.vad = htolel(0);
2472                 req->data.startmedia.qualifier.packets = htolel(0);
2473                 req->data.startmedia.qualifier.bitRate = htolel(0);
2474                 transmit_response(d, req);
2475
2476                 return 0;
2477         }
2478         /* Need a return here to break the bridge */
2479         return 0;
2480 }
2481
2482 static struct ast_rtp_protocol skinny_rtp = {
2483         .type = "Skinny",
2484         .get_rtp_info = skinny_get_rtp_peer,
2485         .get_vrtp_info = skinny_get_vrtp_peer,
2486         .set_rtp_peer = skinny_set_rtp_peer,
2487 };
2488
2489 static char *handle_skinny_set_debug_deprecated(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2490 {
2491         switch (cmd) {
2492         case CLI_INIT:
2493                 e->command = "skinny set debug [off]";
2494                 e->usage =
2495                         "Usage: skinny set debug [off]\n"
2496                         "       Enables/Disables dumping of Skinny packets for debugging purposes\n";
2497                 return NULL;
2498         case CLI_GENERATE:
2499                 return NULL;
2500         }
2501
2502         if (a->argc < 3 || a->argc > 4)
2503                 return CLI_SHOWUSAGE;
2504
2505         if (a->argc == 3) {
2506                 skinnydebug = 1;
2507                 ast_cli(a->fd, "Skinny Debugging Enabled\n");
2508                 return CLI_SUCCESS;
2509         } else if (!strncasecmp(a->argv[3], "off", 3)) {
2510                 skinnydebug = 0;
2511                 ast_cli(a->fd, "Skinny Debugging Disabled\n");
2512                 return CLI_SUCCESS;
2513         } else {
2514                 return CLI_SHOWUSAGE;
2515         }
2516 }
2517
2518 static char *handle_skinny_set_debug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2519 {
2520         switch (cmd) {
2521         case CLI_INIT:
2522                 e->command = "skinny set debug {on|off}";
2523                 e->usage =
2524                         "Usage: skinny set debug {on|off}\n"
2525                         "       Enables/Disables dumping of Skinny packets for debugging purposes\n";
2526                 return NULL;
2527         case CLI_GENERATE:
2528                 return NULL;
2529         }
2530
2531         if (a->argc != e->args)
2532                 return CLI_SHOWUSAGE;
2533
2534         if (!strncasecmp(a->argv[e->args - 1], "on", 2)) {
2535                 skinnydebug = 1;
2536                 ast_cli(a->fd, "Skinny Debugging Enabled\n");
2537                 return CLI_SUCCESS;
2538         } else if (!strncasecmp(a->argv[e->args - 1], "off", 3)) {
2539                 skinnydebug = 0;
2540                 ast_cli(a->fd, "Skinny Debugging Disabled\n");
2541                 return CLI_SUCCESS;
2542         } else {
2543                 return CLI_SHOWUSAGE;
2544         }
2545 }
2546
2547 static char *complete_skinny_devices(const char *word, int state)
2548 {
2549         struct skinny_device *d;
2550         char *result = NULL;
2551         int wordlen = strlen(word), which = 0;
2552
2553         AST_LIST_TRAVERSE(&devices, d, list) {
2554                 if (!strncasecmp(word, d->id, wordlen) && ++which > state)
2555                         result = ast_strdup(d->id);
2556         }
2557
2558         return result;
2559 }
2560
2561 static char *complete_skinny_show_device(const char *line, const char *word, int pos, int state)
2562 {
2563         return (pos == 3 ? ast_strdup(complete_skinny_devices(word, state)) : NULL);
2564 }
2565
2566 static char *complete_skinny_reset(const char *line, const char *word, int pos, int state)
2567 {
2568         return (pos == 2 ? ast_strdup(complete_skinny_devices(word, state)) : NULL);
2569 }
2570
2571 static char *complete_skinny_show_line(const char *line, const char *word, int pos, int state)
2572 {
2573         struct skinny_device *d;
2574         struct skinny_line *l;
2575         char *result = NULL;
2576         int wordlen = strlen(word), which = 0;
2577
2578         if (pos != 3)
2579                 return NULL;
2580
2581         AST_LIST_TRAVERSE(&devices, d, list) {
2582                 AST_LIST_TRAVERSE(&d->lines, l, list) {
2583                         if (!strncasecmp(word, l->name, wordlen) && ++which > state)
2584                                 result = ast_strdup(l->name);
2585                 }
2586         }
2587
2588         return result;
2589 }
2590
2591 static char *handle_skinny_reset(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2592 {
2593         struct skinny_device *d;
2594         struct skinny_req *req;
2595
2596         switch (cmd) {
2597         case CLI_INIT:
2598                 e->command = "skinny reset";
2599                 e->usage =
2600                         "Usage: skinny reset <DeviceId|DeviceName|all> [restart]\n"
2601                         "       Causes a Skinny device to reset itself, optionally with a full restart\n";
2602                 return NULL;
2603         case CLI_GENERATE:
2604                 return complete_skinny_reset(a->line, a->word, a->pos, a->n);
2605         }
2606
2607         if (a->argc < 3 || a->argc > 4)
2608                 return CLI_SHOWUSAGE;
2609
2610         AST_LIST_LOCK(&devices);
2611         AST_LIST_TRAVERSE(&devices, d, list) {
2612                 int fullrestart = 0;
2613                 if (!strcasecmp(a->argv[2], d->id) || !strcasecmp(a->argv[2], d->name) || !strcasecmp(a->argv[2], "all")) {
2614                         if (!(d->session))
2615                                 continue;
2616
2617                         if (!(req = req_alloc(sizeof(struct reset_message), RESET_MESSAGE)))
2618                                 continue;
2619
2620                         if (a->argc == 4 && !strcasecmp(a->argv[3], "restart"))
2621                                 fullrestart = 1;
2622
2623                         if (fullrestart)
2624                                 req->data.reset.resetType = 2;
2625                         else
2626                                 req->data.reset.resetType = 1;
2627
2628                         ast_verb(3, "%s device %s.\n", (fullrestart) ? "Restarting" : "Resetting", d->id);
2629                         transmit_response(d, req);
2630                 }
2631         }
2632         AST_LIST_UNLOCK(&devices);
2633         return CLI_SUCCESS;
2634 }
2635
2636 static char *device2str(int type)
2637 {
2638         char *tmp;
2639
2640         switch (type) {
2641         case SKINNY_DEVICE_NONE:
2642                 return "No Device";
2643         case SKINNY_DEVICE_30SPPLUS:
2644                 return "30SP Plus";
2645         case SKINNY_DEVICE_12SPPLUS:
2646                 return "12SP Plus";
2647         case SKINNY_DEVICE_12SP:
2648                 return "12SP";
2649         case SKINNY_DEVICE_12:
2650                 return "12";
2651         case SKINNY_DEVICE_30VIP:
2652                 return "30VIP";
2653         case SKINNY_DEVICE_7910:
2654                 return "7910";
2655         case SKINNY_DEVICE_7960:
2656                 return "7960";
2657         case SKINNY_DEVICE_7940:
2658                 return "7940";
2659         case SKINNY_DEVICE_7935:
2660                 return "7935";
2661         case SKINNY_DEVICE_ATA186:
2662                 return "ATA186";
2663         case SKINNY_DEVICE_7941:
2664                 return "7941";
2665         case SKINNY_DEVICE_7971:
2666                 return "7971";
2667         case SKINNY_DEVICE_7914:
2668                 return "7914";
2669         case SKINNY_DEVICE_7985:
2670                 return "7985";
2671         case SKINNY_DEVICE_7911:
2672                 return "7911";
2673         case SKINNY_DEVICE_7961GE:
2674                 return "7961GE";
2675         case SKINNY_DEVICE_7941GE:
2676                 return "7941GE";
2677         case SKINNY_DEVICE_7931:
2678                 return "7931";
2679         case SKINNY_DEVICE_7921:
2680                 return "7921";
2681         case SKINNY_DEVICE_7906:
2682                 return "7906";
2683         case SKINNY_DEVICE_7962:
2684                 return "7962";
2685         case SKINNY_DEVICE_7937:
2686                 return "7937";
2687         case SKINNY_DEVICE_7942:
2688                 return "7942";
2689         case SKINNY_DEVICE_7945:
2690                 return "7945";
2691         case SKINNY_DEVICE_7965:
2692                 return "7965";
2693         case SKINNY_DEVICE_7975:
2694                 return "7975";
2695         case SKINNY_DEVICE_7905:
2696                 return "7905";
2697         case SKINNY_DEVICE_7920:
2698                 return "7920";
2699         case SKINNY_DEVICE_7970:
2700                 return "7970";
2701         case SKINNY_DEVICE_7912:
2702                 return "7912";
2703         case SKINNY_DEVICE_7902:
2704                 return "7902";
2705         case SKINNY_DEVICE_CIPC:
2706                 return "IP Communicator";
2707         case SKINNY_DEVICE_7961:
2708                 return "7961";
2709         case SKINNY_DEVICE_7936:
2710                 return "7936";
2711         case SKINNY_DEVICE_SCCPGATEWAY_AN:
2712                 return "SCCPGATEWAY_AN";
2713         case SKINNY_DEVICE_SCCPGATEWAY_BRI:
2714                 return "SCCPGATEWAY_BRI";
2715         case SKINNY_DEVICE_UNKNOWN:
2716                 return "Unknown";
2717         default:
2718                 if (!(tmp = ast_threadstorage_get(&device2str_threadbuf, DEVICE2STR_BUFSIZE)))
2719                         return "Unknown";
2720                 snprintf(tmp, DEVICE2STR_BUFSIZE, "UNKNOWN-%d", type);
2721                 return tmp;
2722         }
2723 }
2724
2725 /*! \brief Print codec list from preference to CLI/manager */
2726 static void print_codec_to_cli(int fd, struct ast_codec_pref *pref)
2727 {
2728         int x, codec;
2729
2730         for(x = 0; x < 32 ; x++) {
2731                 codec = ast_codec_pref_index(pref, x);
2732                 if (!codec)
2733                         break;
2734                 ast_cli(fd, "%s", ast_getformatname(codec));
2735                 ast_cli(fd, ":%d", pref->framing[x]);
2736                 if (x < 31 && ast_codec_pref_index(pref, x + 1))
2737                         ast_cli(fd, ",");
2738         }
2739         if (!x)
2740                 ast_cli(fd, "none");
2741 }
2742
2743 static char *handle_skinny_show_devices(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2744 {
2745         struct skinny_device *d;
2746         struct skinny_line *l;
2747
2748         switch (cmd) {
2749         case CLI_INIT:
2750                 e->command = "skinny show devices";
2751                 e->usage =
2752                         "Usage: skinny show devices\n"
2753                         "       Lists all devices known to the Skinny subsystem.\n";
2754                 return NULL;
2755         case CLI_GENERATE:
2756                 return NULL;
2757         }
2758
2759         if (a->argc != 3)
2760                 return CLI_SHOWUSAGE;
2761
2762         ast_cli(a->fd, "Name                 DeviceId         IP              Type            R NL\n");
2763         ast_cli(a->fd, "-------------------- ---------------- --------------- --------------- - --\n");
2764
2765         AST_LIST_LOCK(&devices);
2766         AST_LIST_TRAVERSE(&devices, d, list) {
2767                 int numlines = 0;
2768                 AST_LIST_TRAVERSE(&d->lines, l, list) {
2769                         numlines++;
2770                 }
2771
2772                 ast_cli(a->fd, "%-20s %-16s %-15s %-15s %c %2d\n",
2773                         d->name,
2774                         d->id,
2775                         d->session?ast_inet_ntoa(d->session->sin.sin_addr):"",
2776                         device2str(d->type),
2777                         d->registered?'Y':'N',
2778                         numlines);
2779         }
2780         AST_LIST_UNLOCK(&devices);
2781         return CLI_SUCCESS;
2782 }
2783
2784 /*! \brief Show device information */
2785 static char *handle_skinny_show_device(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2786 {
2787         struct skinny_device *d;
2788         struct skinny_line *l;
2789         struct skinny_speeddial *sd;
2790         struct skinny_addon *sa;
2791
2792         switch (cmd) {
2793         case CLI_INIT:
2794                 e->command = "skinny show device";
2795                 e->usage =
2796                         "Usage: skinny show device <DeviceId|DeviceName>\n"
2797                         "       Lists all deviceinformation of a specific device known to the Skinny subsystem.\n";
2798                 return NULL;
2799         case CLI_GENERATE:
2800                 return complete_skinny_show_device(a->line, a->word, a->pos, a->n);
2801         }
2802
2803         if (a->argc < 4)
2804                 return CLI_SHOWUSAGE;
2805
2806         AST_LIST_LOCK(&devices);
2807         AST_LIST_TRAVERSE(&devices, d, list) {
2808                 if (!strcasecmp(a->argv[3], d->id) || !strcasecmp(a->argv[3], d->name)) {
2809                         int numlines = 0, numaddons = 0, numspeeddials = 0;
2810
2811                         AST_LIST_TRAVERSE(&d->lines, l, list){
2812                                 numlines++;
2813                         }
2814
2815                         ast_cli(a->fd, "Name:        %s\n", d->name);
2816                         ast_cli(a->fd, "Id:          %s\n", d->id);
2817                         ast_cli(a->fd, "version:     %s\n", S_OR(d->version_id, "Unknown"));
2818                         ast_cli(a->fd, "Ip address:  %s\n", (d->session ? ast_inet_ntoa(d->session->sin.sin_addr) : "Unknown"));
2819                         ast_cli(a->fd, "Port:        %d\n", (d->session ? ntohs(d->session->sin.sin_port) : 0));
2820                         ast_cli(a->fd, "Device Type: %s\n", device2str(d->type));
2821                         ast_cli(a->fd, "Registered:  %s\n", (d->registered ? "Yes" : "No"));
2822                         ast_cli(a->fd, "Lines:       %d\n", numlines);
2823                         AST_LIST_TRAVERSE(&d->lines, l, list) {
2824                                 ast_cli(a->fd, "  %s (%s)\n", l->name, l->label);
2825                         }
2826                         AST_LIST_TRAVERSE(&d->addons, sa, list) {
2827                                 numaddons++;
2828                         }
2829                         ast_cli(a->fd, "Addons:      %d\n", numaddons);
2830                         AST_LIST_TRAVERSE(&d->addons, sa, list) {
2831                                 ast_cli(a->fd, "  %s\n", sa->type);
2832                         }
2833                         AST_LIST_TRAVERSE(&d->speeddials, sd, list) {
2834                                 numspeeddials++;
2835                         }
2836                         ast_cli(a->fd, "Speeddials:  %d\n", numspeeddials);
2837                         AST_LIST_TRAVERSE(&d->speeddials, sd, list) {
2838                                 ast_cli(a->fd, "  %s (%s) ishint: %d\n", sd->exten, sd->label, sd->isHint);
2839                         }
2840                 }
2841         }
2842         AST_LIST_UNLOCK(&devices);
2843         return CLI_SUCCESS;
2844 }
2845
2846 static char *handle_skinny_show_lines(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2847 {
2848         struct skinny_device *d;
2849         struct skinny_line *l;
2850
2851         switch (cmd) {
2852         case CLI_INIT:
2853                 e->command = "skinny show lines";
2854                 e->usage =
2855                         "Usage: skinny show lines\n"
2856                         "       Lists all lines known to the Skinny subsystem.\n";
2857                 return NULL;
2858         case CLI_GENERATE:
2859                 return NULL;
2860         }
2861
2862         if (a->argc != 3)
2863                 return CLI_SHOWUSAGE;
2864
2865
2866         ast_cli(a->fd, "Device Name          Instance Name                 Label               \n");
2867         ast_cli(a->fd, "-------------------- -------- -------------------- --------------------\n");
2868         AST_LIST_LOCK(&devices);
2869         AST_LIST_TRAVERSE(&devices, d, list) {
2870                 AST_LIST_TRAVERSE(&d->lines, l, list) {
2871                         ast_cli(a->fd, "%-20s %8d %-20s %-20s\n",
2872                                 d->name,
2873                                 l->instance,
2874                                 l->name,
2875                                 l->label);
2876                 }
2877         }
2878         AST_LIST_UNLOCK(&devices);
2879         return CLI_SUCCESS;
2880 }
2881
2882 /*! \brief List line information. */
2883 static char *handle_skinny_show_line(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2884 {
2885         struct skinny_device *d;
2886         struct skinny_line *l;
2887         char codec_buf[512];
2888         char group_buf[256];
2889
2890         switch (cmd) {
2891         case CLI_INIT:
2892                 e->command = "skinny show line";
2893                 e->usage =
2894                         "Usage: skinny show line <Line> [ on <DeviceID|DeviceName> ]\n"
2895                         "       List all lineinformation of a specific line known to the Skinny subsystem.\n";
2896                 return NULL;
2897         case CLI_GENERATE:
2898                 return complete_skinny_show_line(a->line, a->word, a->pos, a->n);
2899         }
2900
2901         if (a->argc < 4)
2902                 return CLI_SHOWUSAGE;
2903
2904         AST_LIST_LOCK(&devices);
2905
2906         /* Show all lines matching the one supplied */
2907         AST_LIST_TRAVERSE(&devices, d, list) {
2908                 if (a->argc == 6 && (strcasecmp(a->argv[5], d->id) && strcasecmp(a->argv[5], d->name)))
2909                         continue;
2910                 AST_LIST_TRAVERSE(&d->lines, l, list) {
2911                         if (strcasecmp(a->argv[3], l->name))
2912                                 continue;
2913                         ast_cli(a->fd, "Line:             %s\n", l->name);
2914                         ast_cli(a->fd, "On Device:        %s\n", d->name);
2915                         ast_cli(a->fd, "Line Label:       %s\n", l->label);
2916                         ast_cli(a->fd, "Extension:        %s\n", S_OR(l->exten, "<not set>"));
2917                         ast_cli(a->fd, "Context:          %s\n", l->context);
2918                         ast_cli(a->fd, "CallGroup:        %s\n", ast_print_group(group_buf, sizeof(group_buf), l->callgroup));
2919                         ast_cli(a->fd, "PickupGroup:      %s\n", ast_print_group(group_buf, sizeof(group_buf), l->pickupgroup));
2920                         ast_cli(a->fd, "Language:         %s\n", S_OR(l->language, "<not set>"));
2921                         ast_cli(a->fd, "Accountcode:      %s\n", S_OR(l->accountcode, "<not set>"));
2922                         ast_cli(a->fd, "AmaFlag:          %s\n", ast_cdr_flags2str(l->amaflags));
2923                         ast_cli(a->fd, "CallerId Number:  %s\n", S_OR(l->cid_num, "<not set>"));
2924                         ast_cli(a->fd, "CallerId Name:    %s\n", S_OR(l->cid_name, "<not set>"));
2925                         ast_cli(a->fd, "Hide CallerId:    %s\n", (l->hidecallerid ? "Yes" : "No"));
2926                         ast_cli(a->fd, "CFwdAll:          %s\n", S_COR((l->cfwdtype & SKINNY_CFWD_ALL), l->call_forward_all, "<not set>"));
2927                         ast_cli(a->fd, "CFwdBusy:         %s\n", S_COR((l->cfwdtype & SKINNY_CFWD_BUSY), l->call_forward_busy, "<not set>"));
2928                         ast_cli(a->fd, "CFwdNoAnswer:     %s\n", S_COR((l->cfwdtype & SKINNY_CFWD_NOANSWER), l->call_forward_noanswer, "<not set>"));
2929                         ast_cli(a->fd, "VoicemailBox:     %s\n", S_OR(l->mailbox, "<not set>"));
2930                         ast_cli(a->fd, "VoicemailNumber:  %s\n", S_OR(l->vmexten, "<not set>"));
2931                         ast_cli(a->fd, "MWIblink:         %d\n", l->mwiblink);
2932                         ast_cli(a->fd, "Regextension:     %s\n", S_OR(l->regexten, "<not set>"));
2933                         ast_cli(a->fd, "Regcontext:       %s\n", S_OR(l->regcontext, "<not set>"));
2934                         ast_cli(a->fd, "MoHInterpret:     %s\n", S_OR(l->mohinterpret, "<not set>"));
2935                         ast_cli(a->fd, "MoHSuggest:       %s\n", S_OR(l->mohsuggest, "<not set>"));
2936                         ast_cli(a->fd, "Last dialed nr:   %s\n", S_OR(l->lastnumberdialed, "<no calls made yet>"));
2937                         ast_cli(a->fd, "Last CallerID:    %s\n", S_OR(l->lastcallerid, "<not set>"));
2938                         ast_cli(a->fd, "Transfer enabled: %s\n", (l->transfer ? "Yes" : "No"));
2939                         ast_cli(a->fd, "Callwaiting:      %s\n", (l->callwaiting ? "Yes" : "No"));
2940                         ast_cli(a->fd, "3Way Calling:     %s\n", (l->threewaycalling ? "Yes" : "No"));
2941                         ast_cli(a->fd, "Can forward:      %s\n", (l->cancallforward ? "Yes" : "No"));
2942                         ast_cli(a->fd, "Do Not Disturb:   %s\n", (l->dnd ? "Yes" : "No"));
2943                         ast_cli(a->fd, "NAT:              %s\n", (l->nat ? "Yes" : "No"));
2944                         ast_cli(a->fd, "immediate:        %s\n", (l->immediate ? "Yes" : "No"));
2945                         ast_cli(a->fd, "Group:            %d\n", l->group);
2946                         ast_cli(a->fd, "Codecs:           ");
2947                         ast_getformatname_multiple(codec_buf, sizeof(codec_buf) - 1, l->capability);
2948                         ast_cli(a->fd, "%s\n", codec_buf);
2949                         ast_cli(a->fd, "Codec Order:      (");
2950                         print_codec_to_cli(a->fd, &l->prefs);
2951                         ast_cli(a->fd, ")\n");
2952                         ast_cli(a->fd, "\n");
2953                 }
2954         }
2955
2956         AST_LIST_UNLOCK(&devices);
2957         return CLI_SUCCESS;
2958 }
2959
2960 /*! \brief List global settings for the Skinny subsystem. */
2961 static char *handle_skinny_show_settings(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
2962 {
2963         switch (cmd) {
2964         case CLI_INIT:
2965                 e->command = "skinny show settings";
2966                 e->usage =
2967                         "Usage: skinny show settings\n"
2968                         "       Lists all global configuration settings of the Skinny subsystem.\n";
2969                 return NULL;
2970         case CLI_GENERATE:
2971                 return NULL;
2972         }
2973
2974         if (a->argc != 3)
2975                 return CLI_SHOWUSAGE;
2976
2977         ast_cli(a->fd, "\nGlobal Settings:\n");
2978         ast_cli(a->fd, "  Skinny Port:            %d\n", ntohs(bindaddr.sin_port));
2979         ast_cli(a->fd, "  Bindaddress:            %s\n", ast_inet_ntoa(bindaddr.sin_addr));
2980         ast_cli(a->fd, "  KeepAlive:              %d\n", keep_alive);
2981         ast_cli(a->fd, "  Date Format:            %s\n", date_format);
2982         ast_cli(a->fd, "  Voice Mail Extension:   %s\n", S_OR(vmexten, "(not set)"));
2983         ast_cli(a->fd, "  Reg. context:           %s\n", S_OR(regcontext, "(not set)"));
2984         ast_cli(a->fd, "  Jitterbuffer enabled:   %s\n", (ast_test_flag(&global_jbconf, AST_JB_ENABLED) ? "Yes" : "No"));
2985         ast_cli(a->fd, "  Jitterbuffer forced:    %s\n", (ast_test_flag(&global_jbconf, AST_JB_FORCED) ? "Yes" : "No"));
2986         ast_cli(a->fd, "  Jitterbuffer max size:  %ld\n", global_jbconf.max_size);
2987         ast_cli(a->fd, "  Jitterbuffer resync:    %ld\n", global_jbconf.resync_threshold);
2988         ast_cli(a->fd, "  Jitterbuffer impl:      %s\n", global_jbconf.impl);
2989         ast_cli(a->fd, "  Jitterbuffer log:       %s\n", (ast_test_flag(&global_jbconf, AST_JB_LOG) ? "Yes" : "No"));
2990
2991         return CLI_SUCCESS;
2992 }
2993
2994 static struct ast_cli_entry cli_skinny_set_debug_deprecated = AST_CLI_DEFINE(handle_skinny_set_debug_deprecated, "Enable/Disable Skinny debugging");
2995 static struct ast_cli_entry cli_skinny[] = {
2996         AST_CLI_DEFINE(handle_skinny_show_devices, "List defined Skinny devices"),
2997         AST_CLI_DEFINE(handle_skinny_show_device, "List Skinny device information"),
2998         AST_CLI_DEFINE(handle_skinny_show_lines, "List defined Skinny lines per device"),
2999         AST_CLI_DEFINE(handle_skinny_show_line, "List Skinny line information"),
3000         AST_CLI_DEFINE(handle_skinny_show_settings, "List global Skinny settings"),
3001         AST_CLI_DEFINE(handle_skinny_set_debug, "Enable/Disable Skinny debugging", .deprecate_cmd = &cli_skinny_set_debug_deprecated),
3002         AST_CLI_DEFINE(handle_skinny_reset, "Reset Skinny device(s)"),
3003 };
3004
3005 static struct skinny_device *build_device(const char *cat, struct ast_variable *v)
3006 {
3007         struct skinny_device *d;
3008         struct skinny_line *l;
3009         struct skinny_speeddial *sd;
3010         struct skinny_addon *a;
3011         char device_vmexten[AST_MAX_EXTENSION];
3012         struct ast_variable *chanvars = NULL;
3013         int lineInstance = 1;
3014         int speeddialInstance = 1;
3015         int y = 0;
3016
3017         if (!(d = ast_calloc(1, sizeof(*d)))) {
3018                 return NULL;
3019         } else {
3020                 ast_copy_string(d->name, cat, sizeof(d->name));
3021                 d->lastlineinstance = 1;
3022                 d->capability = default_capability;
3023                 d->prefs = default_prefs;
3024                 if (!ast_strlen_zero(vmexten))
3025                         ast_copy_string(device_vmexten, vmexten, sizeof(device_vmexten));
3026                 else
3027                         memset(device_vmexten, 0, sizeof(device_vmexten));
3028
3029                 d->earlyrtp = 1;
3030                 while(v) {
3031                         if (!strcasecmp(v->name, "host")) {
3032                                 if (ast_get_ip(&d->addr, v->value)) {
3033                                         ast_free(d);
3034                                         return NULL;
3035                                 }
3036                         } else if (!strcasecmp(v->name, "port")) {
3037                                 d->addr.sin_port = htons(atoi(v->value));
3038                         } else if (!strcasecmp(v->name, "device")) {
3039                                 ast_copy_string(d->id, v->value, sizeof(d->id));
3040                         } else if (!strcasecmp(v->name, "permit") || !strcasecmp(v->name, "deny")) {
3041                                 d->ha = ast_append_ha(v->name, v->value, d->ha, NULL);
3042                         } else if (!strcasecmp(v->name, "vmexten")) {
3043                                 ast_copy_string(device_vmexten, v->value, sizeof(device_vmexten));
3044                         } else if (!strcasecmp(v->name, "context")) {
3045                                 ast_copy_string(global_context, v->value, sizeof(global_context));
3046                         } else if (!strcasecmp(v->name, "regexten")) {
3047                                 ast_copy_string(regexten, v->value, sizeof(regexten));
3048                         } else if (!strcasecmp(v->name, "allow")) {
3049                                 ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 1);
3050                         } else if (!strcasecmp(v->name, "disallow")) {
3051                                 ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 0);
3052                         } else if (!strcasecmp(v->name, "version")) {
3053                                 ast_copy_string(d->version_id, v->value, sizeof(d->version_id));
3054                         } else if (!strcasecmp(v->name, "canreinvite")) {
3055                                 canreinvite = ast_true(v->value);
3056                         } else if (!strcasecmp(v->name, "earlyrtp")) {
3057                                 d->earlyrtp = ast_true(v->value);
3058                         } else if (!strcasecmp(v->name, "nat")) {
3059                                 nat = ast_true(v->value);
3060                         } else if (!strcasecmp(v->name, "callerid")) {
3061                                 if (!strcasecmp(v->value, "asreceived")) {
3062                                         cid_num[0] = '\0';
3063                                         cid_name[0] = '\0';
3064                                 } else {
3065                                         ast_callerid_split(v->value, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
3066                                 }
3067                         } else if (!strcasecmp(v->name, "language")) {
3068                                 ast_copy_string(language, v->value, sizeof(language));
3069                         } else if (!strcasecmp(v->name, "accountcode")) {
3070                                 ast_copy_string(accountcode, v->value, sizeof(accountcode));
3071                         } else if (!strcasecmp(v->name, "amaflags")) {
3072                                 y = ast_cdr_amaflags2int(v->value);
3073                                 if (y < 0) {
3074                                         ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value, v->lineno);
3075                                 } else {
3076                                         amaflags = y;
3077                                 }
3078                         } else if (!strcasecmp(v->name, "mohinterpret") || !strcasecmp(v->name, "musiconhold")) {
3079                                 ast_copy_string(mohinterpret, v->value, sizeof(mohinterpret));
3080                         } else if (!strcasecmp(v->name, "mohsuggest")) {
3081                                 ast_copy_string(mohsuggest, v->value, sizeof(mohsuggest));
3082                         } else if (!strcasecmp(v->name, "callgroup")) {
3083                                 cur_callergroup = ast_get_group(v->value);
3084                         } else if (!strcasecmp(v->name, "pickupgroup")) {
3085                                 cur_pickupgroup = ast_get_group(v->value);
3086                         } else if (!strcasecmp(v->name, "immediate")) {
3087                                 immediate = ast_true(v->value);
3088                         } else if (!strcasecmp(v->name, "cancallforward")) {
3089                                 cancallforward = ast_true(v->value);
3090                         } else if (!strcasecmp(v->name, "mailbox")) {
3091                                 ast_copy_string(mailbox, v->value, sizeof(mailbox));
3092                         } else if (!strcasecmp(v->name, "hasvoicemail")) {
3093                                 if (ast_true(v->value) && ast_strlen_zero(mailbox)) {
3094                                         ast_copy_string(mailbox, cat, sizeof(mailbox));
3095                                 }
3096                         } else if (!strcasecmp(v->name, "callreturn")) {
3097                                 callreturn = ast_true(v->value);
3098                         } else if (!strcasecmp(v->name, "callwaiting")) {
3099                                 callwaiting = ast_true(v->value);
3100                         } else if (!strcasecmp(v->name, "transfer")) {
3101                                 transfer = ast_true(v->value);
3102                         } else if (!strcasecmp(v->name, "threewaycalling")) {
3103                                 threewaycalling = ast_true(v->value);
3104                         } else if (!strcasecmp(v->name, "mwiblink")) {
3105                                 mwiblink = ast_true(v->value);
3106                         } else if (!strcasecmp(v->name, "linelabel")) {
3107                                 ast_copy_string(linelabel, v->value, sizeof(linelabel));
3108                         } else if (!strcasecmp(v->name, "setvar")) {
3109                                 chanvars = add_var(v->value, chanvars);
3110                         } else if ( !strcasecmp(v->name, "parkinglot")) {
3111                                 ast_copy_string(parkinglot, v->value, sizeof(parkinglot));
3112                         } else if (!strcasecmp(v->name, "speeddial")) {
3113                                 if (!(sd = ast_calloc(1, sizeof(*sd)))) {
3114                                         return NULL;
3115                                 } else {
3116                                         char buf[256];
3117                                         char *stringp = buf, *exten, *context, *label;
3118
3119                                         ast_copy_string(buf, v->value, sizeof(buf));
3120                                         exten = strsep(&stringp, ",");
3121                                         if ((context = strchr(exten, '@'))) {
3122                                                 *context++ = '\0';
3123                                         }
3124                                         label = stringp;
3125                                         ast_mutex_init(&sd->lock);
3126                                         ast_copy_string(sd->exten, exten, sizeof(sd->exten));
3127                                         if (!ast_strlen_zero(context)) {
3128                                                 sd->isHint = 1;
3129                                                 sd->instance = lineInstance++;
3130                                                 ast_copy_string(sd->context, context, sizeof(sd->context));
3131                                         } else {
3132                                                 sd->isHint = 0;
3133                                                 sd->instance = speeddialInstance++;
3134                                                 sd->context[0] = '\0';
3135                                         }
3136                                         ast_copy_string(sd->label, S_OR(label, exten), sizeof(sd->label));
3137
3138                                         sd->parent = d;
3139
3140                                         AST_LIST_INSERT_HEAD(&d->speeddials, sd, list);
3141                                 }
3142                         } else if (!strcasecmp(v->name, "addon")) {
3143                                 if (!(a = ast_calloc(1, sizeof(*a)))) {
3144                                         return NULL;
3145                                 } else {
3146                                         ast_mutex_init(&a->lock);
3147                                         ast_copy_string(a->type, v->value, sizeof(a->type));
3148
3149                                         AST_LIST_INSERT_HEAD(&d->addons, a, list);
3150                                 }
3151                         } else if (!strcasecmp(v->name, "trunk") || !strcasecmp(v->name, "line")) {
3152                                 if (!(l = ast_calloc(1, sizeof(*l)))) {
3153                                         return NULL;
3154                                 } else {
3155                                         ast_mutex_init(&l->lock);
3156                                         ast_copy_string(l->name, v->value, sizeof(l->name));
3157
3158                                         /* XXX Should we check for uniqueness?? XXX */
3159                                         ast_copy_string(l->context, global_context, sizeof(l->context));
3160                                         ast_copy_string(l->cid_num, cid_num, sizeof(l->cid_num));
3161                                         ast_copy_string(l->cid_name, cid_name, sizeof(l->cid_name));
3162                                         ast_copy_string(l->label, linelabel, sizeof(l->label));
3163                                         ast_copy_string(l->parkinglot, parkinglot, sizeof(l->parkinglot));
3164                                         ast_copy_string(l->language, language, sizeof(l->language));
3165                                         ast_copy_string(l->mohinterpret, mohinterpret, sizeof(l->mohinterpret));
3166                                         ast_copy_string(l->mohsuggest, mohsuggest, sizeof(l->mohsuggest));
3167                                         ast_copy_string(l->regexten, regexten, sizeof(l->regexten));
3168                                         ast_copy_string(l->mailbox, mailbox, sizeof(l->mailbox));
3169                                         if (!ast_strlen_zero(mailbox)) {
3170                                                 char *cfg_mailbox, *cfg_context;
3171                                                 cfg_context = cfg_mailbox = ast_strdupa(l->mailbox);
3172                                                 ast_verb(3, "Setting mailbox '%s' on %s@%s\n", cfg_mailbox, d->name, l->name);
3173                                                 strsep(&cfg_context, "@");
3174                                                 if (ast_strlen_zero(cfg_context))
3175                                                          cfg_context = "default";
3176                                                 l->mwi_event_sub = ast_event_subscribe(AST_EVENT_MWI, mwi_event_cb, NULL,
3177                                                         AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, cfg_mailbox,
3178                                                         AST_EVENT_IE_CONTEXT, AST_EVENT_IE_PLTYPE_STR, cfg_context,
3179                                                         AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_EXISTS,
3180                                                         AST_EVENT_IE_END);
3181                                         }
3182                                         ast_copy_string(l->vmexten, device_vmexten, sizeof(vmexten));
3183                                         l->chanvars = chanvars;
3184                                         l->msgstate = -1;
3185                                         l->capability = d->capability;
3186                                         l->prefs = d->prefs;
3187                                         l->parent = d;
3188                                         if (!strcasecmp(v->name, "trunk")) {
3189                                                 l->type = TYPE_TRUNK;
3190                                         } else {
3191                                                 l->type = TYPE_LINE;
3192                                         }
3193                                         l->immediate = immediate;
3194                                         l->callgroup = cur_callergroup;
3195                                         l->pickupgroup = cur_pickupgroup;
3196                                         l->callreturn = callreturn;
3197                                         l->cancallforward = cancallforward;
3198                                         l->getforward = 0;
3199                                         set_callforwards(l, NULL, 0);
3200                                         l->callwaiting = callwaiting;
3201                                         l->transfer = transfer;
3202                                         l->threewaycalling = threewaycalling;
3203                                         l->mwiblink = mwiblink;
3204                                         l->onhooktime = time(NULL);
3205                                         l->instance = lineInstance++;
3206                                         /* ASSUME we're onhook at this point */
3207                                         l->hookstate = SKINNY_ONHOOK;
3208                                         l->nat = nat;
3209                                         l->canreinvite = canreinvite;
3210
3211                                         if (!AST_LIST_FIRST(&d->lines)) {
3212                                                 d->activeline = l;
3213                                         }
3214                                         AST_LIST_INSERT_HEAD(&d->lines, l, list);
3215                                 }
3216                         } else {
3217                                 ast_log(LOG_WARNING, "Don't know keyword '%s' at line %d\n", v->name, v->lineno);
3218                         }
3219                         v = v->next;
3220                 }
3221
3222                 if (!AST_LIST_FIRST(&d->lines)) {
3223                         ast_log(LOG_ERROR, "A Skinny device must have at least one line!\n");
3224                         return NULL;
3225                 }
3226                 if (/*d->addr.sin_addr.s_addr && */!ntohs(d->addr.sin_port)) {
3227                         d->addr.sin_port = htons(DEFAULT_SKINNY_PORT);
3228                 }
3229         }
3230         return d;
3231 }
3232
3233 static void start_rtp(struct skinny_subchannel *sub)
3234 {
3235         struct skinny_line *l = sub->parent;
3236         struct skinny_device *d = l->parent;
3237         int hasvideo = 0;
3238
3239         ast_mutex_lock(&sub->lock);
3240         /* Allocate the RTP */
3241         sub->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
3242         if (hasvideo)
3243                 sub->vrtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
3244
3245         if (sub->rtp && sub->owner) {
3246                 ast_channel_set_fd(sub->owner, 0, ast_rtp_fd(sub->rtp));
3247                 ast_channel_set_fd(sub->owner, 1, ast_rtcp_fd(sub->rtp));
3248         }
3249         if (hasvideo && sub->vrtp && sub->owner) {
3250                 ast_channel_set_fd(sub->owner, 2, ast_rtp_fd(sub->vrtp));
3251                 ast_channel_set_fd(sub->owner, 3, ast_rtcp_fd(sub->vrtp));
3252         }
3253         if (sub->rtp) {
3254                 ast_rtp_setqos(sub->rtp, qos.tos_audio, qos.cos_audio, "Skinny RTP");
3255                 ast_rtp_setnat(sub->rtp, l->nat);
3256         }
3257         if (sub->vrtp) {
3258                 ast_rtp_setqos(sub->vrtp, qos.tos_video, qos.cos_video, "Skinny VRTP");
3259                 ast_rtp_setnat(sub->vrtp, l->nat);
3260         }
3261         /* Set Frame packetization */
3262         if (sub->rtp)
3263                 ast_rtp_codec_setpref(sub->rtp, &l->prefs);
3264
3265         /* Create the RTP connection */
3266         transmit_connect(d, sub);
3267         ast_mutex_unlock(&sub->lock);
3268 }
3269
3270 static void *skinny_newcall(void *data)
3271 {
3272         struct ast_channel *c = data;
3273         struct skinny_subchannel *sub = c->tech_pvt;
3274         struct skinny_line *l = sub->parent;
3275         struct skinny_device *d = l->parent;
3276         int res = 0;
3277
3278         ast_copy_string(l->lastnumberdialed, c->exten, sizeof(l->lastnumberdialed));
3279         ast_set_callerid(c,
3280                 l->hidecallerid ? "" : l->cid_num,
3281                 l->hidecallerid ? "" : l->cid_name,
3282                 c->cid.cid_ani ? NULL : l->cid_num);
3283         ast_setstate(c, AST_STATE_RING);
3284         if (!sub->rtp) {
3285                 start_rtp(sub);
3286         }
3287         res = ast_pbx_run(c);
3288         if (res) {
3289                 ast_log(LOG_WARNING, "PBX exited non-zero\n");
3290                 transmit_tone(d, SKINNY_REORDER, l->instance, sub->callid);
3291         }
3292         return NULL;
3293 }
3294
3295 static void *skinny_ss(void *data)
3296 {
3297         struct ast_channel *c = data;
3298         struct skinny_subchannel *sub = c->tech_pvt;
3299         struct skinny_line *l = sub->parent;
3300         struct skinny_device *d = l->parent;
3301         int len = 0;
3302         int timeout = firstdigittimeout;
3303         int res = 0;
3304         int loop_pause = 100;
3305
3306         ast_verb(3, "Starting simple switch on '%s@%s'\n", l->name, d->name);
3307
3308         len = strlen(d->exten);
3309
3310         while (len < AST_MAX_EXTENSION-1) {
3311                 res = 1;  /* Assume that we will get a digit */
3312                 while (strlen(d->exten) == len){
3313                         ast_safe_sleep(c, loop_pause);
3314                         timeout -= loop_pause;
3315                         if ( (timeout -= loop_pause) <= 0){
3316                                  res = 0;
3317                                  break;
3318                         }
3319                 res = 1;
3320                 }
3321
3322                 timeout = 0;
3323                 len = strlen(d->exten);
3324
3325                 if (!ast_ignore_pattern(c->context, d->exten)) {
3326                         transmit_tone(d, SKINNY_SILENCE, l->instance, sub->callid);
3327                 }
3328                 if (ast_exists_extension(c, c->context, d->exten, 1, l->cid_num)) {
3329                         if (!res || !ast_matchmore_extension(c, c->context, d->exten, 1, l->cid_num)) {
3330                                 if (l->getforward) {
3331                                         /* Record this as the forwarding extension */
3332                                         set_callforwards(l, d->exten, l->getforward);
3333                                         ast_verb(3, "Setting call forward (%d) to '%s' on channel %s\n",
3334                                                         l->cfwdtype, d->exten, c->name);
3335                                         transmit_tone(d, SKINNY_DIALTONE, l->instance, sub->callid);
3336                                         transmit_lamp_indication(d, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_ON);
3337                                         transmit_displaynotify(d, "CFwd enabled", 10);
3338                                         transmit_cfwdstate(d, l);
3339                                         ast_safe_sleep(c, 500);
3340                                         ast_indicate(c, -1);
3341                                         ast_safe_sleep(c, 1000);
3342                                         memset(d->exten, 0, sizeof(d->exten));
3343                                         len = 0;
3344                                         l->getforward = 0;
3345                                         if (sub->owner && sub->owner->_state != AST_STATE_UP) {
3346                                                 ast_indicate(c, -1);
3347                                                 ast_hangup(c);
3348                                         }
3349                                         return NULL;
3350                                 } else {
3351                                         ast_copy_string(c->exten, d->exten, sizeof(c->exten));
3352                                         ast_copy_string(l->lastnumberdialed, d->exten, sizeof(l->lastnumberdialed));
3353                                         memset(d->exten, 0, sizeof(d->exten));
3354                                         skinny_newcall(c);
3355                                         return NULL;
3356                                 }
3357                         } else {
3358                                 /* It's a match, but they just typed a digit, and there is an ambiguous match,
3359                                    so just set the timeout to matchdigittimeout and wait some more */
3360                                 timeout = matchdigittimeout;
3361                         }
3362                 } else if (res == 0) {
3363                         ast_debug(1, "Not enough digits (%s) (and no ambiguous match)...\n", d->exten);
3364                         memset(d->exten, 0, sizeof(d->exten));
3365                         transmit_tone(d, SKINNY_REORDER, l->instance, sub->callid);
3366                         if (sub->owner && sub->owner->_state != AST_STATE_UP) {
3367                                 ast_indicate(c, -1);
3368                                 ast_hangup(c);
3369                         }
3370                         return NULL;
3371                 } else if (!ast_canmatch_extension(c, c->context, d->exten, 1, c->cid.cid_num) &&
3372                            ((d->exten[0] != '*') || (!ast_strlen_zero(d->exten) > 2))) {
3373                         ast_log(LOG_WARNING, "Can't match [%s] from '%s' in context %s\n", d->exten, c->cid.cid_num ? c->cid.cid_num : "<Unknown Caller>", c->context);
3374                         memset(d->exten, 0, sizeof(d->exten));
3375                         transmit_tone(d, SKINNY_REORDER, l->instance, sub->callid);
3376                         /* hang out for 3 seconds to let congestion play */
3377                         ast_safe_sleep(c, 3000);
3378                         break;
3379                 }
3380                 if (!timeout) {
3381                         timeout = gendigittimeout;
3382                 }
3383                 if (len && !ast_ignore_pattern(c->context, d->exten)) {
3384                         ast_indicate(c, -1);
3385                 }
3386         }
3387         if (c)
3388                 ast_hangup(c);
3389         memset(d->exten, 0, sizeof(d->exten));
3390         return NULL;
3391 }
3392
3393
3394
3395 static int skinny_call(struct ast_channel *ast, char *dest, int timeout)
3396 {
3397         int res = 0;
3398         int tone = 0;
3399         struct skinny_subchannel *sub = ast->tech_pvt;
3400         struct skinny_line *l = sub->parent;
3401         struct skinny_device *d = l->parent;
3402
3403         if (!d->registered) {
3404                 ast_log(LOG_ERROR, "Device not registered, cannot call %s\n", dest);
3405                 return -1;
3406         }
3407
3408         if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
3409                 ast_log(LOG_WARNING, "skinny_call called on %s, neither down nor reserved\n", ast->name);
3410                 return -1;
3411         }
3412
3413         if (skinnydebug)
3414                 ast_verb(3, "skinny_call(%s)\n", ast->name);
3415
3416         if (l->dnd) {
3417                 ast_queue_control(ast, AST_CONTROL_BUSY);
3418                 return -1;
3419         }
3420
3421         switch (l->hookstate) {
3422         case SKINNY_OFFHOOK:
3423                 tone = SKINNY_CALLWAITTONE;
3424                 break;
3425         case SKINNY_ONHOOK:
3426                 tone = SKINNY_ALERT;
3427                 break;
3428         default:
3429                 ast_log(LOG_ERROR, "Don't know how to deal with hookstate %d\n", l->hookstate);
3430                 break;
3431         }
3432
3433         transmit_callstateonly(d, sub, SKINNY_RINGIN);
3434         transmit_selectsoftkeys(d, l->instance, sub->callid, KEYDEF_RINGIN);
3435         transmit_displaypromptstatus(d, "Ring-In", 0, l->instance, sub->callid);
3436         transmit_callinfo(d, ast->cid.cid_name, ast->cid.cid_num, l->cid_name, l->cid_num, l->instance, sub->callid, 1);
3437         transmit_lamp_indication(d, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
3438         transmit_ringer_mode(d, SKINNY_RING_INSIDE);
3439
3440         ast_setstate(ast, AST_STATE_RINGING);
3441         ast_queue_control(ast, AST_CONTROL_RINGING);
3442         sub->outgoing = 1;
3443         return res;
3444 }
3445
3446 static int skinny_hangup(struct ast_channel *ast)
3447 {
3448         struct skinny_subchannel *sub = ast->tech_pvt;
3449         struct skinny_line *l;
3450         struct skinny_device *d;
3451         struct skinnysession *s;
3452
3453         if (!sub) {
3454                 ast_debug(1, "Asked to hangup channel not connected\n");
3455                 return 0;
3456         }
3457         l = sub->parent;
3458         d = l->parent;
3459         s = d->session;
3460
3461         AST_LIST_REMOVE(&l->sub, sub, list);
3462
3463         if (d->registered) {
3464                 /* Ignoring l->type, doesn't seem relevant and previous code
3465                    assigned rather than tested, ie always true */
3466                 if (!AST_LIST_EMPTY(&l->sub)) {
3467                         if (sub->related) {
3468                                 sub->related->related = NULL;
3469
3470                         }
3471                         if (sub == l->activesub) {      /* we are killing the active sub, but there are other subs on the line*/
3472                                 if (sub->related) {
3473                                         l->activesub = sub->related;
3474                                 } else {
3475                                         if (AST_LIST_NEXT(sub, list)) {
3476                                                 l->activesub = AST_LIST_NEXT(sub, list);
3477                                         } else {
3478                                                 l->activesub = AST_LIST_FIRST(&l->sub);
3479                                         }
3480                                 }
3481                                 transmit_callstate(d, l->instance, SKINNY_ONHOOK, sub->callid);
3482                                 transmit_activatecallplane(d, l);
3483                                 transmit_closereceivechannel(d, sub);
3484                                 transmit_stopmediatransmission(d, sub);
3485                                 transmit_lamp_indication(d, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
3486                         } else {    /* we are killing a background sub on the line with other subs*/
3487                                 if (AST_LIST_NEXT(sub, list)) {
3488                                         transmit_lamp_indication(d, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
3489                                 } else {
3490                                         transmit_lamp_indication(d, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
3491                                 }
3492                         }
3493                 } else {                                                /* no more subs on line so make idle */
3494
3495                         l->hookstate = SKINNY_ONHOOK;
3496                         transmit_callstate(d, l->instance, SKINNY_ONHOOK, sub->callid);
3497                         l->activesub = NULL;
3498                         transmit_lamp_indication(d, STIMULUS_LINE, l->instance, SKINNY_LAMP_OFF);
3499                         if (sub->parent == d->activeline) {
3500                                 transmit_activatecallplane(d, l);
3501                                 transmit_closereceivechannel(d, sub);
3502                                 transmit_stopmediatransmission(d, sub);
3503                                 transmit_speaker_mode(d, SKINNY_SPEAKEROFF);
3504                                 transmit_ringer_mode(d, SKINNY_RING_OFF);
3505                                 /* we should check to see if we can start the ringer if another line is ringing */
3506                         }
3507                 }
3508         }
3509         ast_mutex_lock(&sub->lock);
3510         sub->owner = NULL;
3511         ast->tech_pvt = NULL;
3512         sub->alreadygone = 0;
3513         sub->outgoing = 0;
3514         if (sub->rtp) {
3515                 ast_rtp_destroy(sub->rtp);
3516                 sub->rtp = NULL;
3517         }
3518         ast_mutex_unlock(&sub->lock);
3519         return 0;
3520 }
3521
3522 static int skinny_answer(struct ast_channel *ast)
3523 {
3524         int res = 0;
3525         struct skinny_subchannel *sub = ast->tech_pvt;
3526         struct skinny_line *l = sub->parent;
3527         struct skinny_device *d = l->parent;
3528
3529         if (sub->blindxfer) {
3530                 if (skinnydebug)
3531                         ast_debug(1, "skinny_answer(%s) on %s@%s-%d with BlindXFER, transferring\n",
3532                                 ast->name, l->name, d->name, sub->callid);
3533                 ast_setstate(ast, AST_STATE_UP);
3534                 skinny_transfer(sub);
3535                 return 0;
3536         }
3537
3538         sub->cxmode = SKINNY_CX_SENDRECV;
3539         if (!sub->rtp) {
3540                 start_rtp(sub);
3541         }
3542         if (skinnydebug)
3543                 ast_verb(1, "skinny_answer(%s) on %s@%s-%d\n", ast->name, l->name, d->name, sub->callid);
3544         if (ast->_state != AST_STATE_UP) {
3545                 ast_setstate(ast, AST_STATE_UP);
3546         }
3547
3548         transmit_tone(d, SKINNY_SILENCE, l->instance, sub->callid);
3549         /* order matters here...
3550            for some reason, transmit_callinfo must be before transmit_callstate,
3551            or you won't get keypad messages in some situations. */
3552         transmit_callinfo(d, ast->cid.cid_name, ast->cid.cid_num, l->lastnumberdialed, l->lastnumberdialed, l->instance, sub->callid, 2);
3553         transmit_callstateonly(d, sub, SKINNY_CONNECTED);
3554         transmit_selectsoftkeys(d, l->instance, sub->callid, KEYDEF_CONNECTED);
3555         transmit_dialednumber(d, l->lastnumberdialed, l->instance, sub->callid);
3556         transmit_displaypromptstatus(d, "Connected", 0, l->instance, sub->callid);
3557         l->activesub = sub;
3558         return res;
3559 }
3560
3561 /* Retrieve audio/etc from channel.  Assumes sub->lock is already held. */
3562 static struct ast_frame *skinny_rtp_read(struct skinny_subchannel *sub)
3563 {
3564         struct ast_channel *ast = sub->owner;
3565         struct ast_frame *f;
3566
3567         if (!sub->rtp) {
3568                 /* We have no RTP allocated for this channel */
3569                 return &ast_null_frame;
3570         }
3571
3572         switch(ast->fdno) {
3573         case 0:
3574                 f = ast_rtp_read(sub->rtp); /* RTP Audio */
3575                 break;
3576         case 1:
3577                 f = ast_rtcp_read(sub->rtp); /* RTCP Control Channel */
3578                 break;
3579         case 2:
3580                 f = ast_rtp_read(sub->vrtp); /* RTP Video */
3581                 break;
3582         case 3:
3583                 f = ast_rtcp_read(sub->vrtp); /* RTCP Control Channel for video */
3584                 break;
3585 #if 0
3586         case 5:
3587                 /* Not yet supported */
3588                 f = ast_udptl_read(sub->udptl); /* UDPTL for T.38 */
3589                 break;
3590 #endif
3591         default:
3592                 f = &ast_null_frame;
3593         }
3594
3595         if (ast) {
3596                 /* We already hold the channel lock */
3597                 if (f->frametype == AST_FRAME_VOICE) {
3598                         if (f->subclass != ast->nativeformats) {
3599                                 ast_debug(1, "Oooh, format changed to %d\n", f->subclass);
3600                                 ast->nativeformats = f->subclass;
3601                                 ast_set_read_format(ast, ast->readformat);
3602                                 ast_set_write_format(ast, ast->writeformat);
3603                         }
3604                 }
3605         }
3606         return f;
3607 }
3608
3609 static struct ast_frame *skinny_read(struct ast_channel *ast)
3610 {
3611         struct ast_frame *fr;
3612         struct skinny_subchannel *sub = ast->tech_pvt;
3613         ast_mutex_lock(&sub->lock);
3614         fr = skinny_rtp_read(sub);
3615         ast_mutex_unlock(&sub->lock);
3616         return fr;
3617 }
3618
3619 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame)
3620 {
3621         struct skinny_subchannel *sub = ast->tech_pvt;
3622         int res = 0;
3623         if (frame->frametype != AST_FRAME_VOICE) {
3624                 if (frame->frametype == AST_FRAME_IMAGE) {
3625                         return 0;
3626                 } else {
3627                         ast_log(LOG_WARNING, "Can't send %d type frames with skinny_write\n", frame->frametype);
3628                         return 0;
3629                 }
3630         } else {
3631                 if (!(frame->subclass & ast->nativeformats)) {
3632                         ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
3633                                 frame->subclass, ast->nativeformats, ast->readformat, ast->writeformat);
3634                         return -1;
3635                 }
3636         }
3637         if (sub) {
3638                 ast_mutex_lock(&sub->lock);
3639                 if (sub->rtp) {
3640                         res = ast_rtp_write(sub->rtp, frame);
3641                 }
3642                 ast_mutex_unlock(&sub->lock);
3643         }
3644         return res;
3645 }
3646
3647 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
3648 {
3649         struct skinny_subchannel *sub = newchan->tech_pvt;
3650         ast_log(LOG_NOTICE, "skinny_fixup(%s, %s)\n", oldchan->name, newchan->name);
3651         if (sub->owner != oldchan) {
3652                 ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, sub->owner);
3653                 return -1;
3654         }
3655         sub->owner = newchan;
3656         return 0;
3657 }
3658
3659 static int skinny_senddigit_begin(struct ast_channel *ast, char digit)
3660 {
3661         return -1; /* Start inband indications */
3662 }
3663
3664 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration)
3665 {
3666 #if 0
3667         struct skinny_subchannel *sub = ast->tech_pvt;
3668         struct skinny_line *l = sub->parent;
3669         struct skinny_device *d = l->parent;
3670         int tmp;
3671         /* not right */
3672         sprintf(tmp, "%d", digit);