Sat Aug 6 00:39:27 2011

Asterisk developer's documentation


chan_skinny.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 1999 - 2005, Digium, Inc.
00005  *
00006  * chan_skinny was developed by Jeremy McNamara & Florian Overkamp
00007  * chan_skinny was heavily modified/fixed by North Antara
00008  *
00009  * See http://www.asterisk.org for more information about
00010  * the Asterisk project. Please do not directly contact
00011  * any of the maintainers of this project for assistance;
00012  * the project provides a web site, mailing lists and IRC
00013  * channels for your use.
00014  *
00015  * This program is free software, distributed under the terms of
00016  * the GNU General Public License Version 2. See the LICENSE file
00017  * at the top of the source tree.
00018  */
00019 
00020 /*! \file
00021  *
00022  * \brief Implementation of the Skinny protocol
00023  *
00024  * \author Jeremy McNamara & Florian Overkamp & North Antara
00025  * \ingroup channel_drivers
00026  */
00027 
00028 
00029 #include "asterisk.h"
00030 
00031 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 314607 $")
00032 
00033 #include <stdio.h>
00034 #include <stdlib.h>
00035 #include <string.h>
00036 #include <unistd.h>
00037 #include <sys/socket.h>
00038 #include <netinet/in.h>
00039 #include <netinet/tcp.h>
00040 #include <sys/ioctl.h>
00041 #include <net/if.h>
00042 #include <errno.h>
00043 #include <fcntl.h>
00044 #include <netdb.h>
00045 #include <arpa/inet.h>
00046 #include <sys/signal.h>
00047 #include <signal.h>
00048 #include <ctype.h>
00049 
00050 #include "asterisk/lock.h"
00051 #include "asterisk/channel.h"
00052 #include "asterisk/config.h"
00053 #include "asterisk/logger.h"
00054 #include "asterisk/module.h"
00055 #include "asterisk/pbx.h"
00056 #include "asterisk/options.h"
00057 #include "asterisk/lock.h"
00058 #include "asterisk/sched.h"
00059 #include "asterisk/io.h"
00060 #include "asterisk/rtp.h"
00061 #include "asterisk/acl.h"
00062 #include "asterisk/callerid.h"
00063 #include "asterisk/cli.h"
00064 #include "asterisk/say.h"
00065 #include "asterisk/cdr.h"
00066 #include "asterisk/astdb.h"
00067 #include "asterisk/features.h"
00068 #include "asterisk/app.h"
00069 #include "asterisk/musiconhold.h"
00070 #include "asterisk/utils.h"
00071 #include "asterisk/dsp.h"
00072 #include "asterisk/stringfields.h"
00073 #include "asterisk/astobj.h"
00074 #include "asterisk/abstract_jb.h"
00075 #include "asterisk/threadstorage.h"
00076 
00077 /*************************************
00078  * Skinny/Asterisk Protocol Settings *
00079  *************************************/
00080 static const char tdesc[] = "Skinny Client Control Protocol (Skinny)";
00081 static const char config[] = "skinny.conf";
00082 
00083 static int default_capability = AST_FORMAT_ULAW | AST_FORMAT_ALAW;
00084 static struct ast_codec_pref default_prefs;
00085 
00086 enum skinny_codecs {
00087    SKINNY_CODEC_ALAW = 2,
00088    SKINNY_CODEC_ULAW = 4,
00089    SKINNY_CODEC_G723_1 = 9,
00090    SKINNY_CODEC_G729A = 12,
00091    SKINNY_CODEC_G726_32 = 82, /* XXX Which packing order does this translate to? */
00092    SKINNY_CODEC_H261 = 100,
00093    SKINNY_CODEC_H263 = 101
00094 };
00095 
00096 #define DEFAULT_SKINNY_PORT   2000
00097 #define DEFAULT_SKINNY_BACKLOG   2
00098 #define SKINNY_MAX_PACKET  1000
00099 #define DEFAULT_AUTH_TIMEOUT  30
00100 #define DEFAULT_AUTH_LIMIT 50
00101 
00102 static int keep_alive = 120;
00103 static int auth_timeout = DEFAULT_AUTH_TIMEOUT;
00104 static int auth_limit = DEFAULT_AUTH_LIMIT;
00105 static int unauth_sessions = 0;
00106 static char date_format[6] = "D-M-Y";
00107 static char version_id[16] = "P002F202";
00108 
00109 #if __BYTE_ORDER == __LITTLE_ENDIAN
00110 #define letohl(x) (x)
00111 #define letohs(x) (x)
00112 #define htolel(x) (x)
00113 #define htoles(x) (x)
00114 #else
00115 #if defined(SOLARIS) || defined(__Darwin__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__)
00116 #define __bswap_16(x) \
00117    ((((x) & 0xff00) >> 8) | \
00118     (((x) & 0x00ff) << 8))
00119 #define __bswap_32(x) \
00120    ((((x) & 0xff000000) >> 24) | \
00121     (((x) & 0x00ff0000) >>  8) | \
00122     (((x) & 0x0000ff00) <<  8) | \
00123     (((x) & 0x000000ff) << 24))
00124 #else
00125 #include <bits/byteswap.h>
00126 #endif
00127 #define letohl(x) __bswap_32(x)
00128 #define letohs(x) __bswap_16(x)
00129 #define htolel(x) __bswap_32(x)
00130 #define htoles(x) __bswap_16(x)
00131 #endif
00132 
00133 /*! Global jitterbuffer configuration - by default, jb is disabled */
00134 static struct ast_jb_conf default_jbconf =
00135 {
00136    .flags = 0,
00137    .max_size = -1,
00138    .resync_threshold = -1,
00139    .impl = ""
00140 };
00141 static struct ast_jb_conf global_jbconf;
00142 
00143 AST_THREADSTORAGE(device2str_threadbuf, device2str_threadbuf_init);
00144 #define DEVICE2STR_BUFSIZE   15
00145 
00146 AST_THREADSTORAGE(control2str_threadbuf, control2str_threadbuf_init);
00147 #define CONTROL2STR_BUFSIZE   100
00148 
00149 /*********************
00150  * Protocol Messages *
00151  *********************/
00152 /* message types */
00153 #define KEEP_ALIVE_MESSAGE 0x0000
00154 /* no additional struct */
00155 
00156 #define REGISTER_MESSAGE 0x0001
00157 struct register_message {
00158    char name[16];
00159    uint32_t userId;
00160    uint32_t instance;
00161    uint32_t ip;
00162    uint32_t type;
00163    uint32_t maxStreams;
00164 };
00165 
00166 #define IP_PORT_MESSAGE 0x0002
00167 
00168 #define KEYPAD_BUTTON_MESSAGE 0x0003
00169 struct keypad_button_message {
00170    uint32_t button;
00171    uint32_t lineInstance;
00172    uint32_t callReference;
00173 };
00174 
00175 
00176 #define ENBLOC_CALL_MESSAGE 0x0004
00177 struct enbloc_call_message {
00178        char calledParty[24];
00179 };
00180 
00181 #define STIMULUS_MESSAGE 0x0005
00182 struct stimulus_message {
00183    uint32_t stimulus;
00184    uint32_t stimulusInstance;
00185    uint32_t callreference;
00186 };
00187 
00188 #define OFFHOOK_MESSAGE 0x0006
00189 struct offhook_message {
00190    uint32_t unknown1;
00191    uint32_t unknown2;
00192 };
00193 
00194 #define ONHOOK_MESSAGE 0x0007
00195 struct onhook_message {
00196    uint32_t unknown1;
00197    uint32_t unknown2;
00198 };
00199 
00200 #define CAPABILITIES_RES_MESSAGE 0x0010
00201 struct station_capabilities {
00202    uint32_t codec;
00203    uint32_t frames;
00204    union {
00205       char res[8];
00206       uint32_t rate;
00207    } payloads;
00208 };
00209 
00210 #define SKINNY_MAX_CAPABILITIES 18
00211 
00212 struct capabilities_res_message {
00213    uint32_t count;
00214    struct station_capabilities caps[SKINNY_MAX_CAPABILITIES];
00215 };
00216 
00217 #define SPEED_DIAL_STAT_REQ_MESSAGE 0x000A
00218 struct speed_dial_stat_req_message {
00219    uint32_t speedDialNumber;
00220 };
00221 
00222 #define LINE_STATE_REQ_MESSAGE 0x000B
00223 struct line_state_req_message {
00224    uint32_t lineNumber;
00225 };
00226 
00227 #define TIME_DATE_REQ_MESSAGE 0x000D
00228 #define BUTTON_TEMPLATE_REQ_MESSAGE 0x000E
00229 #define VERSION_REQ_MESSAGE 0x000F
00230 #define SERVER_REQUEST_MESSAGE 0x0012
00231 
00232 #define ALARM_MESSAGE 0x0020
00233 struct alarm_message {
00234    uint32_t alarmSeverity;
00235    char displayMessage[80];
00236    uint32_t alarmParam1;
00237    uint32_t alarmParam2;
00238 };
00239 
00240 #define OPEN_RECEIVE_CHANNEL_ACK_MESSAGE 0x0022
00241 struct open_receive_channel_ack_message {
00242    uint32_t status;
00243    uint32_t ipAddr;
00244    uint32_t port;
00245    uint32_t passThruId;
00246 };
00247 
00248 #define SOFT_KEY_SET_REQ_MESSAGE 0x0025
00249 
00250 #define SOFT_KEY_EVENT_MESSAGE 0x0026
00251 struct soft_key_event_message {
00252    uint32_t softKeyEvent;
00253    uint32_t instance;
00254    uint32_t callreference;
00255 };
00256 
00257 #define UNREGISTER_MESSAGE 0x0027
00258 #define SOFT_KEY_TEMPLATE_REQ_MESSAGE 0x0028
00259 #define HEADSET_STATUS_MESSAGE 0x002B
00260 #define REGISTER_AVAILABLE_LINES_MESSAGE 0x002D
00261 
00262 #define REGISTER_ACK_MESSAGE 0x0081
00263 struct register_ack_message {
00264    uint32_t keepAlive;
00265    char dateTemplate[6];
00266    char res[2];
00267    uint32_t secondaryKeepAlive;
00268    char res2[4];
00269 };
00270 
00271 #define START_TONE_MESSAGE 0x0082
00272 struct start_tone_message {
00273    uint32_t tone;
00274    uint32_t space;
00275    uint32_t instance;
00276    uint32_t reference;
00277 };
00278 
00279 #define STOP_TONE_MESSAGE 0x0083
00280 struct stop_tone_message {
00281    uint32_t instance;
00282    uint32_t reference;
00283 };
00284 
00285 #define SET_RINGER_MESSAGE 0x0085
00286 struct set_ringer_message {
00287    uint32_t ringerMode;
00288    uint32_t unknown1; /* See notes in transmit_ringer_mode */
00289    uint32_t unknown2;
00290    uint32_t space[2];
00291 };
00292 
00293 #define SET_LAMP_MESSAGE 0x0086
00294 struct set_lamp_message {
00295    uint32_t stimulus;
00296    uint32_t stimulusInstance;
00297    uint32_t deviceStimulus;
00298 };
00299 
00300 #define SET_SPEAKER_MESSAGE 0x0088
00301 struct set_speaker_message {
00302    uint32_t mode;
00303 };
00304 
00305 /* XXX When do we need to use this? */
00306 #define SET_MICROPHONE_MESSAGE 0x0089
00307 struct set_microphone_message {
00308    uint32_t mode;
00309 };
00310 
00311 #define START_MEDIA_TRANSMISSION_MESSAGE 0x008A
00312 struct media_qualifier {
00313    uint32_t precedence;
00314    uint32_t vad;
00315    uint16_t packets;
00316    uint32_t bitRate;
00317 };
00318 
00319 struct start_media_transmission_message {
00320    uint32_t conferenceId;
00321    uint32_t passThruPartyId;
00322    uint32_t remoteIp;
00323    uint32_t remotePort;
00324    uint32_t packetSize;
00325    uint32_t payloadType;
00326    struct media_qualifier qualifier;
00327    uint32_t space[16];
00328 };
00329 
00330 #define STOP_MEDIA_TRANSMISSION_MESSAGE 0x008B
00331 struct stop_media_transmission_message {
00332    uint32_t conferenceId;
00333    uint32_t passThruPartyId;
00334    uint32_t space[3];
00335 };
00336 
00337 #define CALL_INFO_MESSAGE 0x008F
00338 struct call_info_message {
00339    char callingPartyName[40];
00340    char callingParty[24];
00341    char calledPartyName[40];
00342    char calledParty[24];
00343    uint32_t instance;
00344    uint32_t reference;
00345    uint32_t type;
00346    char originalCalledPartyName[40];
00347    char originalCalledParty[24];
00348    char lastRedirectingPartyName[40];
00349    char lastRedirectingParty[24];
00350    uint32_t originalCalledPartyRedirectReason;
00351    uint32_t lastRedirectingReason;
00352    char callingPartyVoiceMailbox[24];
00353    char calledPartyVoiceMailbox[24];
00354    char originalCalledPartyVoiceMailbox[24];
00355    char lastRedirectingVoiceMailbox[24];
00356    uint32_t space[3];
00357 };
00358 
00359 #define SPEED_DIAL_STAT_RES_MESSAGE 0x0091
00360 struct speed_dial_stat_res_message {
00361    uint32_t speedDialNumber;
00362    char speedDialDirNumber[24];
00363    char speedDialDisplayName[40];
00364 };
00365 
00366 #define LINE_STAT_RES_MESSAGE 0x0092
00367 struct line_stat_res_message {
00368    uint32_t lineNumber;
00369    char lineDirNumber[24];
00370    char lineDisplayName[24];
00371    uint32_t space[15];
00372 };
00373 
00374 #define DEFINETIMEDATE_MESSAGE 0x0094
00375 struct definetimedate_message {
00376    uint32_t year; /* since 1900 */
00377    uint32_t month;
00378    uint32_t dayofweek;  /* monday = 1 */
00379    uint32_t day;
00380    uint32_t hour;
00381    uint32_t minute;
00382    uint32_t seconds;
00383    uint32_t milliseconds;
00384    uint32_t timestamp;
00385 };
00386 
00387 #define BUTTON_TEMPLATE_RES_MESSAGE 0x0097
00388 struct button_definition {
00389    uint8_t instanceNumber;
00390    uint8_t buttonDefinition;
00391 };
00392 
00393 struct button_definition_template {
00394    uint8_t buttonDefinition;
00395    /* for now, anything between 0xB0 and 0xCF is custom */
00396    /*int custom;*/
00397 };
00398 
00399 #define STIMULUS_REDIAL       0x01
00400 #define STIMULUS_SPEEDDIAL    0x02
00401 #define STIMULUS_HOLD         0x03
00402 #define STIMULUS_TRANSFER     0x04
00403 #define STIMULUS_FORWARDALL      0x05
00404 #define STIMULUS_FORWARDBUSY     0x06
00405 #define STIMULUS_FORWARDNOANSWER 0x07
00406 #define STIMULUS_DISPLAY      0x08
00407 #define STIMULUS_LINE         0x09
00408 #define STIMULUS_VOICEMAIL    0x0F
00409 #define STIMULUS_AUTOANSWER      0x11
00410 #define STIMULUS_CONFERENCE      0x7D
00411 #define STIMULUS_CALLPARK     0x7E
00412 #define STIMULUS_CALLPICKUP      0x7F
00413 #define STIMULUS_NONE         0xFF
00414 
00415 /* Button types */
00416 #define BT_REDIAL       STIMULUS_REDIAL
00417 #define BT_SPEEDDIAL       STIMULUS_SPEEDDIAL
00418 #define BT_HOLD            STIMULUS_HOLD
00419 #define BT_TRANSFER        STIMULUS_TRANSFER
00420 #define BT_FORWARDALL         STIMULUS_FORWARDALL
00421 #define BT_FORWARDBUSY        STIMULUS_FORWARDBUSY
00422 #define BT_FORWARDNOANSWER    STIMULUS_FORWARDNOANSWER
00423 #define BT_DISPLAY         STIMULUS_DISPLAY
00424 #define BT_LINE            STIMULUS_LINE
00425 #define BT_VOICEMAIL       STIMULUS_VOICEMAIL
00426 #define BT_AUTOANSWER         STIMULUS_AUTOANSWER
00427 #define BT_CONFERENCE         STIMULUS_CONFERENCE
00428 #define BT_CALLPARK        STIMULUS_CALLPARK
00429 #define BT_CALLPICKUP         STIMULUS_CALLPICKUP
00430 #define BT_NONE            0x00
00431 
00432 /* Custom button types - add our own between 0xB0 and 0xCF.
00433    This may need to be revised in the future,
00434    if stimuluses are ever added in this range. */
00435 #define BT_CUST_LINESPEEDDIAL    0xB0  /* line or speeddial */
00436 #define BT_CUST_HINT       0xB1  /* pipe dream */
00437 
00438 struct button_template_res_message {
00439    uint32_t buttonOffset;
00440    uint32_t buttonCount;
00441    uint32_t totalButtonCount;
00442    struct button_definition definition[42];
00443 };
00444 
00445 #define VERSION_RES_MESSAGE 0x0098
00446 struct version_res_message {
00447    char version[16];
00448 };
00449 
00450 #define DISPLAYTEXT_MESSAGE 0x0099
00451 struct displaytext_message {
00452    char text[40];
00453 };
00454 
00455 #define CLEAR_NOTIFY_MESSAGE  0x0115
00456 #define CLEAR_DISPLAY_MESSAGE 0x009A
00457 
00458 #define CAPABILITIES_REQ_MESSAGE 0x009B
00459 
00460 #define REGISTER_REJ_MESSAGE 0x009D
00461 struct register_rej_message {
00462    char errMsg[33];
00463 };
00464 
00465 #define SERVER_RES_MESSAGE 0x009E
00466 struct server_identifier {
00467    char serverName[48];
00468 };
00469 
00470 struct server_res_message {
00471    struct server_identifier server[5];
00472    uint32_t serverListenPort[5];
00473    uint32_t serverIpAddr[5];
00474 };
00475 
00476 #define RESET_MESSAGE 0x009F
00477 struct reset_message {
00478    uint32_t resetType;
00479 };
00480 
00481 #define KEEP_ALIVE_ACK_MESSAGE 0x0100
00482 
00483 #define OPEN_RECEIVE_CHANNEL_MESSAGE 0x0105
00484 struct open_receive_channel_message {
00485    uint32_t conferenceId;
00486    uint32_t partyId;
00487    uint32_t packets;
00488    uint32_t capability;
00489    uint32_t echo;
00490    uint32_t bitrate;
00491    uint32_t space[16];
00492 };
00493 
00494 #define CLOSE_RECEIVE_CHANNEL_MESSAGE 0x0106
00495 struct close_receive_channel_message {
00496    uint32_t conferenceId;
00497    uint32_t partyId;
00498    uint32_t space[2];
00499 };
00500 
00501 #define SOFT_KEY_TEMPLATE_RES_MESSAGE 0x0108
00502 
00503 struct soft_key_template_definition {
00504    char softKeyLabel[16];
00505    uint32_t softKeyEvent;
00506 };
00507 
00508 #define KEYDEF_ONHOOK         0
00509 #define KEYDEF_CONNECTED      1
00510 #define KEYDEF_ONHOLD         2
00511 #define KEYDEF_RINGIN         3
00512 #define KEYDEF_OFFHOOK        4
00513 #define KEYDEF_CONNWITHTRANS     5
00514 #define KEYDEF_DADFD       6 /* Digits After Dialing First Digit */
00515 #define KEYDEF_CONNWITHCONF      7
00516 #define KEYDEF_RINGOUT        8
00517 #define KEYDEF_OFFHOOKWITHFEAT      9
00518 #define KEYDEF_UNKNOWN        10
00519 
00520 #define SOFTKEY_NONE       0x00
00521 #define SOFTKEY_REDIAL        0x01
00522 #define SOFTKEY_NEWCALL       0x02
00523 #define SOFTKEY_HOLD       0x03
00524 #define SOFTKEY_TRNSFER       0x04
00525 #define SOFTKEY_CFWDALL       0x05
00526 #define SOFTKEY_CFWDBUSY      0x06
00527 #define SOFTKEY_CFWDNOANSWER     0x07
00528 #define SOFTKEY_BKSPC         0x08
00529 #define SOFTKEY_ENDCALL       0x09
00530 #define SOFTKEY_RESUME        0x0A
00531 #define SOFTKEY_ANSWER        0x0B
00532 #define SOFTKEY_INFO       0x0C
00533 #define SOFTKEY_CONFRN        0x0D
00534 #define SOFTKEY_PARK       0x0E
00535 #define SOFTKEY_JOIN       0x0F
00536 #define SOFTKEY_MEETME        0x10
00537 #define SOFTKEY_PICKUP        0x11
00538 #define SOFTKEY_GPICKUP       0x12
00539 
00540 struct soft_key_template_definition soft_key_template_default[] = {
00541    { "Redial",    0x01 },
00542    { "NewCall",      0x02 },
00543    { "Hold",      0x03 },
00544    { "Trnsfer",      0x04 },
00545    { "CFwdAll",      0x05 },
00546    { "CFwdBusy",     0x06 },
00547    { "CFwdNoAnswer", 0x07 },
00548    { "<<",        0x08 },
00549    { "EndCall",      0x09 },
00550    { "Resume",    0x0A },
00551    { "Answer",    0x0B },
00552    { "Info",      0x0C },
00553    { "Confrn",    0x0D },
00554    { "Park",      0x0E },
00555    { "Join",      0x0F },
00556    { "MeetMe",    0x10 },
00557    { "PickUp",    0x11 },
00558    { "GPickUp",      0x12 },
00559 };
00560 
00561 struct soft_key_definitions {
00562    const uint8_t mode;
00563    const uint8_t *defaults;
00564    const int count;
00565 };
00566 
00567 static const uint8_t soft_key_default_onhook[] = {
00568    SOFTKEY_REDIAL,
00569    SOFTKEY_NEWCALL,
00570    SOFTKEY_CFWDALL,
00571    SOFTKEY_CFWDBUSY,
00572    /*SOFTKEY_GPICKUP,
00573    SOFTKEY_CONFRN,*/
00574 };
00575 
00576 static const uint8_t soft_key_default_connected[] = {
00577    SOFTKEY_HOLD,
00578    SOFTKEY_ENDCALL,
00579    SOFTKEY_TRNSFER,
00580    SOFTKEY_PARK,
00581    SOFTKEY_CFWDALL,
00582    SOFTKEY_CFWDBUSY,
00583 };
00584 
00585 static const uint8_t soft_key_default_onhold[] = {
00586    SOFTKEY_RESUME,
00587    SOFTKEY_NEWCALL,
00588    SOFTKEY_ENDCALL,
00589    SOFTKEY_TRNSFER,
00590 };
00591 
00592 static const uint8_t soft_key_default_ringin[] = {
00593    SOFTKEY_ANSWER,
00594    SOFTKEY_ENDCALL,
00595    SOFTKEY_TRNSFER,
00596 };
00597 
00598 static const uint8_t soft_key_default_offhook[] = {
00599    SOFTKEY_REDIAL,
00600    SOFTKEY_ENDCALL,
00601    SOFTKEY_CFWDALL,
00602    SOFTKEY_CFWDBUSY,
00603    /*SOFTKEY_GPICKUP,*/
00604 };
00605 
00606 static const uint8_t soft_key_default_connwithtrans[] = {
00607    SOFTKEY_HOLD,
00608    SOFTKEY_ENDCALL,
00609    SOFTKEY_TRNSFER,
00610    SOFTKEY_PARK,
00611    SOFTKEY_CFWDALL,
00612    SOFTKEY_CFWDBUSY,
00613 };
00614 
00615 static const uint8_t soft_key_default_dadfd[] = {
00616    SOFTKEY_BKSPC,
00617    SOFTKEY_ENDCALL,
00618 };
00619 
00620 static const uint8_t soft_key_default_connwithconf[] = {
00621    SOFTKEY_NONE,
00622 };
00623 
00624 static const uint8_t soft_key_default_ringout[] = {
00625    SOFTKEY_NONE,
00626    SOFTKEY_ENDCALL,
00627 };
00628 
00629 static const uint8_t soft_key_default_offhookwithfeat[] = {
00630    SOFTKEY_REDIAL,
00631    SOFTKEY_ENDCALL,
00632 };
00633 
00634 static const uint8_t soft_key_default_unknown[] = {
00635    SOFTKEY_NONE,
00636 };
00637 
00638 static const struct soft_key_definitions soft_key_default_definitions[] = {
00639    {KEYDEF_ONHOOK, soft_key_default_onhook, sizeof(soft_key_default_onhook) / sizeof(uint8_t)},
00640    {KEYDEF_CONNECTED, soft_key_default_connected, sizeof(soft_key_default_connected) / sizeof(uint8_t)},
00641    {KEYDEF_ONHOLD, soft_key_default_onhold, sizeof(soft_key_default_onhold) / sizeof(uint8_t)},
00642    {KEYDEF_RINGIN, soft_key_default_ringin, sizeof(soft_key_default_ringin) / sizeof(uint8_t)},
00643    {KEYDEF_OFFHOOK, soft_key_default_offhook, sizeof(soft_key_default_offhook) / sizeof(uint8_t)},
00644    {KEYDEF_CONNWITHTRANS, soft_key_default_connwithtrans, sizeof(soft_key_default_connwithtrans) / sizeof(uint8_t)},
00645    {KEYDEF_DADFD, soft_key_default_dadfd, sizeof(soft_key_default_dadfd) / sizeof(uint8_t)},
00646    {KEYDEF_CONNWITHCONF, soft_key_default_connwithconf, sizeof(soft_key_default_connwithconf) / sizeof(uint8_t)},
00647    {KEYDEF_RINGOUT, soft_key_default_ringout, sizeof(soft_key_default_ringout) / sizeof(uint8_t)},
00648    {KEYDEF_OFFHOOKWITHFEAT, soft_key_default_offhookwithfeat, sizeof(soft_key_default_offhookwithfeat) / sizeof(uint8_t)},
00649    {KEYDEF_UNKNOWN, soft_key_default_unknown, sizeof(soft_key_default_unknown) / sizeof(uint8_t)}
00650 };
00651 
00652 struct soft_key_template_res_message {
00653    uint32_t softKeyOffset;
00654    uint32_t softKeyCount;
00655    uint32_t totalSoftKeyCount;
00656    struct soft_key_template_definition softKeyTemplateDefinition[32];
00657 };
00658 
00659 #define SOFT_KEY_SET_RES_MESSAGE 0x0109
00660 
00661 struct soft_key_set_definition {
00662    uint8_t softKeyTemplateIndex[16];
00663    uint16_t softKeyInfoIndex[16];
00664 };
00665 
00666 struct soft_key_set_res_message {
00667    uint32_t softKeySetOffset;
00668    uint32_t softKeySetCount;
00669    uint32_t totalSoftKeySetCount;
00670    struct soft_key_set_definition softKeySetDefinition[16];
00671    uint32_t res;
00672 };
00673 
00674 #define SELECT_SOFT_KEYS_MESSAGE 0x0110
00675 struct select_soft_keys_message {
00676    uint32_t instance;
00677    uint32_t reference;
00678    uint32_t softKeySetIndex;
00679    uint32_t validKeyMask;
00680 };
00681 
00682 #define CALL_STATE_MESSAGE 0x0111
00683 struct call_state_message {
00684    uint32_t callState;
00685    uint32_t lineInstance;
00686    uint32_t callReference;
00687    uint32_t space[3];
00688 };
00689 
00690 #define DISPLAY_PROMPT_STATUS_MESSAGE 0x0112
00691 struct display_prompt_status_message {
00692    uint32_t messageTimeout;
00693    char promptMessage[32];
00694    uint32_t lineInstance;
00695    uint32_t callReference;
00696 };
00697 
00698 #define CLEAR_PROMPT_MESSAGE  0x0113
00699 struct clear_prompt_message {
00700        uint32_t lineInstance;
00701        uint32_t callReference;
00702 };
00703 
00704 #define DISPLAY_NOTIFY_MESSAGE 0x0114
00705 struct display_notify_message {
00706    uint32_t displayTimeout;
00707    char displayMessage[100];
00708 };
00709 
00710 #define ACTIVATE_CALL_PLANE_MESSAGE 0x0116
00711 struct activate_call_plane_message {
00712    uint32_t lineInstance;
00713 };
00714 
00715 #define DIALED_NUMBER_MESSAGE 0x011D
00716 struct dialed_number_message {
00717    char dialedNumber[24];
00718    uint32_t lineInstance;
00719    uint32_t callReference;
00720 };
00721 
00722 union skinny_data {
00723    struct alarm_message alarm;
00724    struct speed_dial_stat_req_message speeddialreq;
00725    struct register_message reg;
00726    struct register_ack_message regack;
00727    struct register_rej_message regrej;
00728    struct capabilities_res_message caps;
00729    struct version_res_message version;
00730    struct button_template_res_message buttontemplate;
00731    struct displaytext_message displaytext;
00732    struct display_prompt_status_message displaypromptstatus;
00733    struct clear_prompt_message clearpromptstatus;
00734    struct definetimedate_message definetimedate;
00735    struct start_tone_message starttone;
00736    struct stop_tone_message stoptone;
00737    struct speed_dial_stat_res_message speeddial;
00738    struct line_state_req_message line;
00739    struct line_stat_res_message linestat;
00740    struct soft_key_set_res_message softkeysets;
00741    struct soft_key_template_res_message softkeytemplate;
00742    struct server_res_message serverres;
00743    struct reset_message reset;
00744    struct set_lamp_message setlamp;
00745    struct set_ringer_message setringer;
00746    struct call_state_message callstate;
00747    struct keypad_button_message keypad;
00748    struct select_soft_keys_message selectsoftkey;
00749    struct activate_call_plane_message activatecallplane;
00750    struct stimulus_message stimulus;
00751    struct offhook_message offhook;
00752    struct onhook_message onhook;
00753    struct set_speaker_message setspeaker;
00754    struct set_microphone_message setmicrophone;
00755    struct call_info_message callinfo;
00756    struct start_media_transmission_message startmedia;
00757    struct stop_media_transmission_message stopmedia;
00758    struct open_receive_channel_message openreceivechannel;
00759    struct open_receive_channel_ack_message openreceivechannelack;
00760    struct close_receive_channel_message closereceivechannel;
00761    struct display_notify_message displaynotify;
00762    struct dialed_number_message dialednumber;
00763    struct soft_key_event_message softkeyeventmessage;
00764    struct enbloc_call_message enbloccallmessage;
00765 };
00766 
00767 /* packet composition */
00768 struct skinny_req {
00769    int len;
00770    int res;
00771    int e;
00772    union skinny_data data;
00773 };
00774 
00775 /* XXX This is the combined size of the variables above.  (len, res, e)
00776    If more are added, this MUST change.
00777    (sizeof(skinny_req) - sizeof(skinny_data)) DOES NOT WORK on all systems (amd64?). */
00778 int skinny_header_size = 12;
00779 
00780 /*****************************
00781  * Asterisk specific globals *
00782  *****************************/
00783 
00784 static int skinnydebug = 0;
00785 
00786 /* a hostname, portnumber, socket and such is usefull for VoIP protocols */
00787 static struct sockaddr_in bindaddr;
00788 static char ourhost[256];
00789 static int ourport;
00790 static struct in_addr __ourip;
00791 struct ast_hostent ahp;
00792 struct hostent *hp;
00793 static int skinnysock = -1;
00794 static pthread_t accept_t;
00795 static char context[AST_MAX_CONTEXT] = "default";
00796 static char language[MAX_LANGUAGE] = "";
00797 static char mohinterpret[MAX_MUSICCLASS] = "default";
00798 static char mohsuggest[MAX_MUSICCLASS] = "";
00799 static char cid_num[AST_MAX_EXTENSION] = "";
00800 static char cid_name[AST_MAX_EXTENSION] = "";
00801 static char linelabel[AST_MAX_EXTENSION] ="";
00802 static int nat = 0;
00803 static ast_group_t cur_callergroup = 0;
00804 static ast_group_t cur_pickupgroup = 0;
00805 static int immediate = 0;
00806 static int callwaiting = 0;
00807 static int callreturn = 0;
00808 static int threewaycalling = 0;
00809 static int mwiblink = 0;
00810 /* This is for flashhook transfers */
00811 static int transfer = 0;
00812 static int cancallforward = 0;
00813 /* static int busycount = 3;*/
00814 static char accountcode[AST_MAX_ACCOUNT_CODE] = "";
00815 static char mailbox[AST_MAX_EXTENSION];
00816 static int amaflags = 0;
00817 static int callnums = 1;
00818 
00819 #define SKINNY_DEVICE_UNKNOWN    -1
00820 #define SKINNY_DEVICE_NONE    0
00821 #define SKINNY_DEVICE_30SPPLUS      1
00822 #define SKINNY_DEVICE_12SPPLUS      2
00823 #define SKINNY_DEVICE_12SP    3
00824 #define SKINNY_DEVICE_12      4
00825 #define SKINNY_DEVICE_30VIP      5
00826 #define SKINNY_DEVICE_7910    6
00827 #define SKINNY_DEVICE_7960    7
00828 #define SKINNY_DEVICE_7940    8
00829 #define SKINNY_DEVICE_7935    9
00830 #define SKINNY_DEVICE_ATA186     12 /* Cisco ATA-186 */
00831 #define SKINNY_DEVICE_7941    115
00832 #define SKINNY_DEVICE_7971    119
00833 #define SKINNY_DEVICE_7914    124   /* Expansion module */
00834 #define SKINNY_DEVICE_7985    302
00835 #define SKINNY_DEVICE_7911    307
00836 #define SKINNY_DEVICE_7961GE     308
00837 #define SKINNY_DEVICE_7941GE     309
00838 #define SKINNY_DEVICE_7931    348
00839 #define SKINNY_DEVICE_7921    365
00840 #define SKINNY_DEVICE_7906    369
00841 #define SKINNY_DEVICE_7962    404   /* Not found */
00842 #define SKINNY_DEVICE_7937    431
00843 #define SKINNY_DEVICE_7942    434
00844 #define SKINNY_DEVICE_7945    435
00845 #define SKINNY_DEVICE_7965    436
00846 #define SKINNY_DEVICE_7975    437
00847 #define SKINNY_DEVICE_7905    20000
00848 #define SKINNY_DEVICE_7920    30002
00849 #define SKINNY_DEVICE_7970    30006
00850 #define SKINNY_DEVICE_7912    30007
00851 #define SKINNY_DEVICE_7902    30008
00852 #define SKINNY_DEVICE_CIPC    30016 /* Cisco IP Communicator */
00853 #define SKINNY_DEVICE_7961    30018
00854 #define SKINNY_DEVICE_7936    30019
00855 #define SKINNY_DEVICE_SCCPGATEWAY_AN   30027 /* ??? */
00856 #define SKINNY_DEVICE_SCCPGATEWAY_BRI  30028 /* ??? */
00857 
00858 #define SKINNY_SPEAKERON 1
00859 #define SKINNY_SPEAKEROFF 2
00860 
00861 #define SKINNY_MICON 1
00862 #define SKINNY_MICOFF 2
00863 
00864 #define SKINNY_OFFHOOK 1
00865 #define SKINNY_ONHOOK 2
00866 #define SKINNY_RINGOUT 3
00867 #define SKINNY_RINGIN 4
00868 #define SKINNY_CONNECTED 5
00869 #define SKINNY_BUSY 6
00870 #define SKINNY_CONGESTION 7
00871 #define SKINNY_HOLD 8
00872 #define SKINNY_CALLWAIT 9
00873 #define SKINNY_TRANSFER 10
00874 #define SKINNY_PARK 11
00875 #define SKINNY_PROGRESS 12
00876 #define SKINNY_INVALID 14
00877 
00878 #define SKINNY_SILENCE     0x00
00879 #define SKINNY_DIALTONE    0x21
00880 #define SKINNY_BUSYTONE    0x23
00881 #define SKINNY_ALERT    0x24
00882 #define SKINNY_REORDER     0x25
00883 #define SKINNY_CALLWAITTONE   0x2D
00884 #define SKINNY_NOTONE      0x7F
00885 
00886 #define SKINNY_LAMP_OFF 1
00887 #define SKINNY_LAMP_ON 2
00888 #define SKINNY_LAMP_WINK 3
00889 #define SKINNY_LAMP_FLASH 4
00890 #define SKINNY_LAMP_BLINK 5
00891 
00892 #define SKINNY_RING_OFF 1
00893 #define SKINNY_RING_INSIDE 2
00894 #define SKINNY_RING_OUTSIDE 3
00895 #define SKINNY_RING_FEATURE 4
00896 
00897 #define TYPE_TRUNK 1
00898 #define TYPE_LINE 2
00899 
00900 /* Skinny rtp stream modes. Do we really need this? */
00901 #define SKINNY_CX_SENDONLY 0
00902 #define SKINNY_CX_RECVONLY 1
00903 #define SKINNY_CX_SENDRECV 2
00904 #define SKINNY_CX_CONF     3
00905 #define SKINNY_CX_CONFERENCE  3
00906 #define SKINNY_CX_MUTE     4
00907 #define SKINNY_CX_INACTIVE 4
00908 
00909 #if 0
00910 static char *skinny_cxmodes[] = {
00911    "sendonly",
00912    "recvonly",
00913    "sendrecv",
00914    "confrnce",
00915    "inactive"
00916 };
00917 #endif
00918 
00919 /* driver scheduler */
00920 static struct sched_context *sched = NULL;
00921 static struct io_context *io;
00922 
00923 /* Protect the monitoring thread, so only one process can kill or start it, and not
00924    when it's doing something critical. */
00925 AST_MUTEX_DEFINE_STATIC(monlock);
00926 /* Protect the network socket */
00927 AST_MUTEX_DEFINE_STATIC(netlock);
00928 /* Protect the session list */
00929 AST_MUTEX_DEFINE_STATIC(sessionlock);
00930 /* Protect the device list */
00931 AST_MUTEX_DEFINE_STATIC(devicelock);
00932 #if 0
00933 /* Protect the paging device list */
00934 AST_MUTEX_DEFINE_STATIC(pagingdevicelock);
00935 #endif
00936 
00937 /* This is the thread for the monitor which checks for input on the channels
00938    which are not currently in use. */
00939 static pthread_t monitor_thread = AST_PTHREADT_NULL;
00940 
00941 /* Wait up to 16 seconds for first digit */
00942 static int firstdigittimeout = 16000;
00943 
00944 /* How long to wait for following digits */
00945 static int gendigittimeout = 8000;
00946 
00947 /* How long to wait for an extra digit, if there is an ambiguous match */
00948 static int matchdigittimeout = 3000;
00949 
00950 struct skinny_subchannel {
00951    ast_mutex_t lock;
00952    struct ast_channel *owner;
00953    struct ast_rtp *rtp;
00954    struct ast_rtp *vrtp;
00955    unsigned int callid;
00956    /* time_t lastouttime; */        /* Unused */
00957    int progress;
00958    int ringing;
00959    int onhold;
00960    /* int lastout; */            /* Unused */
00961    int cxmode;
00962    int nat;
00963    int outgoing;
00964    int alreadygone;
00965 
00966    struct skinny_subchannel *next;
00967    struct skinny_line *parent;
00968 };
00969 
00970 struct skinny_line {
00971    ast_mutex_t lock;
00972    char name[80];
00973    char label[24];               /* Label that shows next to the line buttons */
00974    char accountcode[AST_MAX_ACCOUNT_CODE];
00975    char exten[AST_MAX_EXTENSION];         /* Extension where to start */
00976    char context[AST_MAX_CONTEXT];
00977    char language[MAX_LANGUAGE];
00978    char cid_num[AST_MAX_EXTENSION];    /* Caller*ID */
00979    char cid_name[AST_MAX_EXTENSION];      /* Caller*ID */
00980    char lastcallerid[AST_MAX_EXTENSION];     /* Last Caller*ID */
00981    char call_forward[AST_MAX_EXTENSION];
00982    char mailbox[AST_MAX_EXTENSION];
00983    char mohinterpret[MAX_MUSICCLASS];
00984    char mohsuggest[MAX_MUSICCLASS];
00985    char lastnumberdialed[AST_MAX_EXTENSION]; /* Last number that was dialed - used for redial */
00986    int curtone;               /* Current tone being played */
00987    ast_group_t callgroup;
00988    ast_group_t pickupgroup;
00989    int callwaiting;
00990    int transfer;
00991    int threewaycalling;
00992    int mwiblink;
00993    int cancallforward;
00994    int callreturn;
00995    int dnd; /* How does this affect callwait?  Do we just deny a skinny_request if we're dnd? */
00996    int hascallerid;
00997    int hidecallerid;
00998    int amaflags;
00999    int type;
01000    int instance;
01001    int group;
01002    int needdestroy;
01003    int capability;
01004    int nonCodecCapability;
01005    int onhooktime;
01006    int msgstate;              /* voicemail message state */
01007    int immediate;
01008    int hookstate;
01009    int nat;
01010 
01011    struct ast_codec_pref prefs;
01012    struct skinny_subchannel *sub;
01013    struct skinny_line *next;
01014    struct skinny_device *parent;
01015 };
01016 
01017 struct skinny_speeddial {
01018    ast_mutex_t lock;
01019    char label[42];
01020    char exten[AST_MAX_EXTENSION];
01021    int instance;
01022 
01023    struct skinny_speeddial *next;
01024    struct skinny_device *parent;
01025 };
01026 
01027 struct skinny_addon {
01028    ast_mutex_t lock;
01029    char type[10];
01030 
01031    struct skinny_addon *next;
01032    struct skinny_device *parent;
01033 };
01034 
01035 static struct skinny_device {
01036    /* A device containing one or more lines */
01037    char name[80];
01038    char id[16];
01039    char version_id[16];
01040    int type;
01041    int registered;
01042    int lastlineinstance;
01043    int lastcallreference;
01044    int capability;
01045    int earlyrtp;
01046    char exten[AST_MAX_EXTENSION];
01047    struct sockaddr_in addr;
01048    struct in_addr ourip;
01049    struct skinny_line *lines;
01050    struct skinny_speeddial *speeddials;
01051    struct skinny_addon *addons;
01052    struct ast_codec_pref prefs;
01053    struct ast_ha *ha;
01054    struct skinnysession *session;
01055    struct skinny_device *next;
01056 } *devices = NULL;
01057 
01058 struct skinny_paging_device {
01059    char name[80];
01060    char id[16];
01061    struct skinny_device ** devices;
01062    struct skinny_paging_device *next;
01063 };
01064 
01065 static struct skinnysession {
01066    pthread_t t;
01067    ast_mutex_t lock;
01068    time_t start;
01069    struct sockaddr_in sin;
01070    int fd;
01071    char inbuf[SKINNY_MAX_PACKET];
01072    char outbuf[SKINNY_MAX_PACKET];
01073    struct skinny_device *device;
01074    struct skinnysession *next;
01075 } *sessions = NULL;
01076 
01077 static struct ast_channel *skinny_request(const char *type, int format, void *data, int *cause);
01078 static int skinny_call(struct ast_channel *ast, char *dest, int timeout);
01079 static int skinny_hangup(struct ast_channel *ast);
01080 static int skinny_answer(struct ast_channel *ast);
01081 static struct ast_frame *skinny_read(struct ast_channel *ast);
01082 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame);
01083 static int skinny_indicate(struct ast_channel *ast, int ind, const void *data, size_t datalen);
01084 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
01085 static int skinny_senddigit_begin(struct ast_channel *ast, char digit);
01086 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration);
01087 static int handle_time_date_req_message(struct skinny_req *req, struct skinnysession *s);
01088 
01089 static const struct ast_channel_tech skinny_tech = {
01090    .type = "Skinny",
01091    .description = tdesc,
01092    .capabilities = ((AST_FORMAT_MAX_AUDIO << 1) - 1),
01093    .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER,
01094    .requester = skinny_request,
01095    .call = skinny_call,
01096    .hangup = skinny_hangup,
01097    .answer = skinny_answer,
01098    .read = skinny_read,
01099    .write = skinny_write,
01100    .indicate = skinny_indicate,
01101    .fixup = skinny_fixup,
01102    .send_digit_begin = skinny_senddigit_begin,
01103    .send_digit_end = skinny_senddigit_end,
01104 /* .bridge = ast_rtp_bridge, */
01105 };
01106 
01107 static void *get_button_template(struct skinnysession *s, struct button_definition_template *btn)
01108 {
01109    struct skinny_device *d = s->device;
01110    struct skinny_addon *a = d->addons;
01111    int i;
01112 
01113    switch (d->type) {
01114       case SKINNY_DEVICE_30SPPLUS:
01115       case SKINNY_DEVICE_30VIP:
01116          /* 13 rows, 2 columns */
01117          for (i = 0; i < 4; i++)
01118             (btn++)->buttonDefinition = BT_LINE;
01119          (btn++)->buttonDefinition = BT_REDIAL;
01120          (btn++)->buttonDefinition = BT_VOICEMAIL;
01121          (btn++)->buttonDefinition = BT_CALLPARK;
01122          (btn++)->buttonDefinition = BT_FORWARDALL;
01123          (btn++)->buttonDefinition = BT_CONFERENCE;
01124          for (i = 0; i < 4; i++)
01125             (btn++)->buttonDefinition = BT_NONE;
01126          for (i = 0; i < 13; i++)
01127             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01128          
01129          break;
01130       case SKINNY_DEVICE_12SPPLUS:
01131       case SKINNY_DEVICE_12SP:
01132       case SKINNY_DEVICE_12:
01133          /* 6 rows, 2 columns */
01134          for (i = 0; i < 2; i++)
01135             (btn++)->buttonDefinition = BT_LINE;
01136          (btn++)->buttonDefinition = BT_REDIAL;
01137          for (i = 0; i < 3; i++)
01138             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01139          (btn++)->buttonDefinition = BT_HOLD;
01140          (btn++)->buttonDefinition = BT_TRANSFER;
01141          (btn++)->buttonDefinition = BT_FORWARDALL;
01142          (btn++)->buttonDefinition = BT_CALLPARK;
01143          (btn++)->buttonDefinition = BT_VOICEMAIL;
01144          (btn++)->buttonDefinition = BT_CONFERENCE;
01145          break;
01146       case SKINNY_DEVICE_7910:
01147          (btn++)->buttonDefinition = BT_LINE;
01148          (btn++)->buttonDefinition = BT_HOLD;
01149          (btn++)->buttonDefinition = BT_TRANSFER;
01150          (btn++)->buttonDefinition = BT_DISPLAY;
01151          (btn++)->buttonDefinition = BT_VOICEMAIL;
01152          (btn++)->buttonDefinition = BT_CONFERENCE;
01153          (btn++)->buttonDefinition = BT_FORWARDALL;
01154          for (i = 0; i < 2; i++)
01155             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01156          (btn++)->buttonDefinition = BT_REDIAL;
01157          break;
01158       case SKINNY_DEVICE_7960:
01159       case SKINNY_DEVICE_7961:
01160       case SKINNY_DEVICE_7961GE:
01161       case SKINNY_DEVICE_7962:
01162       case SKINNY_DEVICE_7965:
01163          for (i = 0; i < 6; i++)
01164             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01165          break;
01166       case SKINNY_DEVICE_7940:
01167       case SKINNY_DEVICE_7941:
01168       case SKINNY_DEVICE_7941GE:
01169       case SKINNY_DEVICE_7942:
01170       case SKINNY_DEVICE_7945:
01171          for (i = 0; i < 2; i++)
01172             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01173          break;
01174       case SKINNY_DEVICE_7935:
01175       case SKINNY_DEVICE_7936:
01176          for (i = 0; i < 2; i++)
01177             (btn++)->buttonDefinition = BT_LINE;
01178          break;
01179       case SKINNY_DEVICE_ATA186:
01180          (btn++)->buttonDefinition = BT_LINE;
01181          break;
01182       case SKINNY_DEVICE_7970:
01183       case SKINNY_DEVICE_7971:
01184       case SKINNY_DEVICE_7975:
01185       case SKINNY_DEVICE_CIPC:
01186          for (i = 0; i < 8; i++)
01187             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01188          break;
01189       case SKINNY_DEVICE_7985:
01190          /* XXX I have no idea what the buttons look like on these. */
01191          ast_log(LOG_WARNING, "Unsupported device type '%d (7985)' found.\n", d->type);
01192          break;
01193       case SKINNY_DEVICE_7912:
01194       case SKINNY_DEVICE_7911:
01195       case SKINNY_DEVICE_7905:
01196          (btn++)->buttonDefinition = BT_LINE;
01197          (btn++)->buttonDefinition = BT_HOLD;
01198          break;
01199       case SKINNY_DEVICE_7920:
01200          /* XXX I don't know if this is right. */
01201          for (i = 0; i < 4; i++)
01202             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01203          break;
01204       case SKINNY_DEVICE_7921:
01205          for (i = 0; i < 6; i++)
01206             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01207          break;
01208       case SKINNY_DEVICE_7902:
01209          ast_log(LOG_WARNING, "Unsupported device type '%d (7902)' found.\n", d->type);
01210          break;
01211       case SKINNY_DEVICE_7906:
01212          ast_log(LOG_WARNING, "Unsupported device type '%d (7906)' found.\n", d->type);
01213          break;
01214       case SKINNY_DEVICE_7931:
01215          ast_log(LOG_WARNING, "Unsupported device type '%d (7931)' found.\n", d->type);
01216          break;
01217       case SKINNY_DEVICE_7937:
01218          ast_log(LOG_WARNING, "Unsupported device type '%d (7937)' found.\n", d->type);
01219          break;
01220       case SKINNY_DEVICE_7914:
01221          ast_log(LOG_WARNING, "Unsupported device type '%d (7914)' found.  Expansion module registered by itself?\n", d->type);
01222          break;
01223       case SKINNY_DEVICE_SCCPGATEWAY_AN:
01224       case SKINNY_DEVICE_SCCPGATEWAY_BRI:
01225          ast_log(LOG_WARNING, "Unsupported device type '%d (SCCP gateway)' found.\n", d->type);
01226          break;
01227       default:
01228          ast_log(LOG_WARNING, "Unknown device type '%d' found.\n", d->type);
01229          break;
01230    }
01231 
01232    for (a = d->addons; a; a = a->next) {
01233       if (!strcasecmp(a->type, "7914")) {
01234          for (i = 0; i < 14; i++)
01235             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01236       } else {
01237          ast_log(LOG_WARNING, "Unknown addon type '%s' found.  Skipping.\n", a->type);
01238       }
01239    }
01240 
01241    return btn;
01242 }
01243 
01244 static struct skinny_req *req_alloc(size_t size, int response_message)
01245 {
01246    struct skinny_req *req;
01247 
01248    if (!(req = ast_calloc(1, skinny_header_size + size + 4)))
01249       return NULL;
01250 
01251    req->len = htolel(size+4);
01252    req->e = htolel(response_message);
01253 
01254    return req;
01255 }
01256 
01257 static struct skinny_line *find_line_by_instance(struct skinny_device *d, int instance)
01258 {
01259    struct skinny_line *l;
01260 
01261    if (!instance)
01262       instance = 1;
01263 
01264    for (l = d->lines; l; l = l->next) {
01265       if (l->instance == instance)
01266          break;
01267    }
01268 
01269    if (!l) {
01270       ast_log(LOG_WARNING, "Could not find line with instance '%d' on device '%s'\n", instance, d->name);
01271    }
01272    return l;
01273 }
01274 
01275 static struct skinny_line *find_line_by_name(const char *dest)
01276 {
01277    struct skinny_line *l;
01278    struct skinny_device *d;
01279    char line[256];
01280    char *at;
01281    char *device;
01282 
01283    ast_copy_string(line, dest, sizeof(line));
01284    at = strchr(line, '@');
01285    if (!at) {
01286       ast_log(LOG_NOTICE, "Device '%s' has no @ (at) sign!\n", dest);
01287       return NULL;
01288    }
01289    *at++ = '\0';
01290    device = at;
01291    ast_mutex_lock(&devicelock);
01292    for (d = devices; d; d = d->next) {
01293       if (!strcasecmp(d->name, device)) {
01294          if (skinnydebug)
01295             ast_verbose("Found device: %s\n", d->name);
01296          /* Found the device */
01297          for (l = d->lines; l; l = l->next) {
01298             /* Search for the right line */
01299             if (!strcasecmp(l->name, line)) {
01300                ast_mutex_unlock(&devicelock);
01301                return l;
01302             }
01303          }
01304       }
01305    }
01306    /* Device not found */
01307    ast_mutex_unlock(&devicelock);
01308    return NULL;
01309 }
01310 
01311 /* It's quicker/easier to find the subchannel when we know the instance number too */
01312 static struct skinny_subchannel *find_subchannel_by_instance_reference(struct skinny_device *d, int instance, int reference)
01313 {
01314    struct skinny_line *l = find_line_by_instance(d, instance);
01315    struct skinny_subchannel *sub;
01316 
01317    if (!l) {
01318       return NULL;
01319    }
01320 
01321    if (!reference)
01322       sub = l->sub;
01323    else {
01324       for (sub = l->sub; sub; sub = sub->next) {
01325          if (sub->callid == reference)
01326             break;
01327       }
01328    }
01329 
01330    if (!sub) {
01331       ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s'\n", reference, d->name);
01332    }
01333    return sub;
01334 }
01335 
01336 /* Find the subchannel when we only have the callid - this shouldn't happen often */
01337 static struct skinny_subchannel *find_subchannel_by_reference(struct skinny_device *d, int reference)
01338 {
01339    struct skinny_line *l;
01340    struct skinny_subchannel *sub = NULL;
01341 
01342    for (l = d->lines; l; l = l->next) {
01343       for (sub = l->sub; sub; sub = sub->next) {
01344          if (sub->callid == reference)
01345             break;
01346       }
01347       if (sub)
01348          break;
01349    }
01350 
01351    if (!l) {
01352       ast_log(LOG_WARNING, "Could not find any lines that contained a subchannel with reference '%d' on device '%s'\n", reference, d->name);
01353    } else {
01354       if (!sub) {
01355          ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s@%s'\n", reference, l->name, d->name);
01356       }
01357    }
01358    return sub;
01359 }
01360 
01361 static struct skinny_speeddial *find_speeddial_by_instance(struct skinny_device *d, int instance)
01362 {
01363    struct skinny_speeddial *sd;
01364 
01365    for (sd = d->speeddials; sd; sd = sd->next) {
01366       if (sd->instance == instance)
01367          break;
01368    }
01369 
01370    if (!sd) {
01371       ast_log(LOG_WARNING, "Could not find speeddial with instance '%d' on device '%s'\n", instance, d->name);
01372    }
01373    return sd;
01374 }
01375 
01376 static int codec_skinny2ast(enum skinny_codecs skinnycodec)
01377 {
01378    switch (skinnycodec) {
01379    case SKINNY_CODEC_ALAW:
01380       return AST_FORMAT_ALAW;
01381    case SKINNY_CODEC_ULAW:
01382       return AST_FORMAT_ULAW;
01383    case SKINNY_CODEC_G723_1:
01384       return AST_FORMAT_G723_1;
01385    case SKINNY_CODEC_G729A:
01386       return AST_FORMAT_G729A;
01387    case SKINNY_CODEC_G726_32:
01388       return AST_FORMAT_G726_AAL2; /* XXX Is this right? */
01389    case SKINNY_CODEC_H261:
01390       return AST_FORMAT_H261;
01391    case SKINNY_CODEC_H263:
01392       return AST_FORMAT_H263;
01393    default:
01394       return 0;
01395    }
01396 }
01397 
01398 static int codec_ast2skinny(int astcodec)
01399 {
01400    switch (astcodec) {
01401    case AST_FORMAT_ALAW:
01402       return SKINNY_CODEC_ALAW;
01403    case AST_FORMAT_ULAW:
01404       return SKINNY_CODEC_ULAW;
01405    case AST_FORMAT_G723_1:
01406       return SKINNY_CODEC_G723_1;
01407    case AST_FORMAT_G729A:
01408       return SKINNY_CODEC_G729A;
01409    case AST_FORMAT_G726_AAL2: /* XXX Is this right? */
01410       return SKINNY_CODEC_G726_32;
01411    case AST_FORMAT_H261:
01412       return SKINNY_CODEC_H261;
01413    case AST_FORMAT_H263:
01414       return SKINNY_CODEC_H263;
01415    default:
01416       return 0;
01417    }
01418 }
01419 
01420 
01421 static int skinny_register(struct skinny_req *req, struct skinnysession *s)
01422 {
01423    struct skinny_device *d;
01424    struct sockaddr_in sin;
01425    socklen_t slen;
01426 
01427    ast_mutex_lock(&devicelock);
01428    for (d = devices; d; d = d->next) {
01429       if (!strcasecmp(req->data.reg.name, d->id)
01430             && ast_apply_ha(d->ha, &(s->sin))) {
01431          s->device = d;
01432          d->type = letohl(req->data.reg.type);
01433          if (ast_strlen_zero(d->version_id)) {
01434             ast_copy_string(d->version_id, version_id, sizeof(d->version_id));
01435          }
01436          d->registered = 1;
01437          d->session = s;
01438 
01439          slen = sizeof(sin);
01440          if (getsockname(s->fd, (struct sockaddr *)&sin, &slen)) {
01441             ast_log(LOG_WARNING, "Cannot get socket name\n");
01442             sin.sin_addr = __ourip;
01443          }
01444          d->ourip = sin.sin_addr;
01445          break;
01446       }
01447    }
01448    ast_mutex_unlock(&devicelock);
01449    if (!d) {
01450       return 0;
01451    }
01452    return 1;
01453 }
01454 
01455 static int skinny_unregister(struct skinny_req *req, struct skinnysession *s)
01456 {
01457    struct skinny_device *d;
01458 
01459    d = s->device;
01460 
01461    if (d) {
01462       d->session = NULL;
01463       d->registered = 0;
01464    }
01465 
01466    return -1; /* main loop will destroy the session */
01467 }
01468 
01469 static int transmit_response(struct skinnysession *s, struct skinny_req *req)
01470 {
01471    int res = 0;
01472 
01473    if (!s) {
01474       ast_log(LOG_WARNING, "Asked to transmit to a non-existant session!\n");
01475       return -1;
01476    }
01477 
01478    ast_mutex_lock(&s->lock);
01479 
01480    if (skinnydebug)
01481       ast_log(LOG_VERBOSE, "writing packet type %04X (%d bytes) to socket %d\n", letohl(req->e), letohl(req->len)+8, s->fd);
01482 
01483    if (letohl(req->len > SKINNY_MAX_PACKET) || letohl(req->len < 0)) {
01484       ast_log(LOG_WARNING, "transmit_response: the length of the request is out of bounds\n");
01485       ast_mutex_unlock(&s->lock);
01486       return -1;
01487    }
01488 
01489    memset(s->outbuf,0,sizeof(s->outbuf));
01490    memcpy(s->outbuf, req, skinny_header_size);
01491    memcpy(s->outbuf+skinny_header_size, &req->data, letohl(req->len));
01492 
01493    res = write(s->fd, s->outbuf, letohl(req->len)+8);
01494 
01495    if (res != letohl(req->len)+8) {
01496       ast_log(LOG_WARNING, "Transmit: write only sent %d out of %d bytes: %s\n", res, letohl(req->len)+8, strerror(errno));
01497       if (res == -1) {
01498          if (skinnydebug)
01499             ast_log(LOG_WARNING, "Transmit: Skinny Client was lost, unregistering\n");
01500          skinny_unregister(NULL, s);
01501       }
01502       
01503    }
01504    
01505    ast_mutex_unlock(&s->lock);
01506    return 1;
01507 }
01508 
01509 static void transmit_speaker_mode(struct skinnysession *s, int mode)
01510 {
01511    struct skinny_req *req;
01512 
01513    if (!(req = req_alloc(sizeof(struct set_speaker_message), SET_SPEAKER_MESSAGE)))
01514       return;
01515 
01516    req->data.setspeaker.mode = htolel(mode);
01517    transmit_response(s, req);
01518 }
01519 /*
01520 static void transmit_microphone_mode(struct skinnysession *s, int mode)
01521 {
01522    struct skinny_req *req;
01523 
01524    if (!(req = req_alloc(sizeof(struct set_microphone_message), SET_MICROPHONE_MESSAGE)))
01525       return;
01526 
01527    req->data.setmicrophone.mode = htolel(mode);
01528    transmit_response(s, req);
01529 }
01530 */
01531 
01532 static void transmit_callinfo(struct skinnysession *s, const char *fromname, const char *fromnum, const char *toname, const char *tonum, int instance, int callid, int calltype)
01533 {
01534    struct skinny_req *req;
01535 
01536    if (!(req = req_alloc(sizeof(struct call_info_message), CALL_INFO_MESSAGE)))
01537       return;
01538 
01539    if (skinnydebug)
01540          ast_verbose("Setting Callinfo to %s(%s) from %s(%s) on %s(%d)\n", fromname, fromnum, toname, tonum, s->device->name, instance);
01541 
01542    if (fromname) {
01543       ast_copy_string(req->data.callinfo.callingPartyName, fromname, sizeof(req->data.callinfo.callingPartyName));
01544    }
01545    if (fromnum) {
01546       ast_copy_string(req->data.callinfo.callingParty, fromnum, sizeof(req->data.callinfo.callingParty));
01547    }
01548    if (toname) {
01549       ast_copy_string(req->data.callinfo.calledPartyName, toname, sizeof(req->data.callinfo.calledPartyName));
01550    }
01551    if (tonum) {
01552       ast_copy_string(req->data.callinfo.calledParty, tonum, sizeof(req->data.callinfo.calledParty));
01553    }
01554    req->data.callinfo.instance = htolel(instance);
01555    req->data.callinfo.reference = htolel(callid);
01556    req->data.callinfo.type = htolel(calltype);
01557    transmit_response(s, req);
01558 }
01559 
01560 static void transmit_connect(struct skinnysession *s, struct skinny_subchannel *sub)
01561 {
01562    struct skinny_req *req;
01563    struct skinny_line *l = sub->parent;
01564    struct ast_format_list fmt;
01565 
01566    if (!(req = req_alloc(sizeof(struct open_receive_channel_message), OPEN_RECEIVE_CHANNEL_MESSAGE)))
01567       return;
01568 
01569    fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
01570 
01571    req->data.openreceivechannel.conferenceId = htolel(sub->callid);
01572    req->data.openreceivechannel.partyId = htolel(sub->callid);
01573    req->data.openreceivechannel.packets = htolel(fmt.cur_ms);
01574    req->data.openreceivechannel.capability = htolel(codec_ast2skinny(fmt.bits));
01575    req->data.openreceivechannel.echo = htolel(0);
01576    req->data.openreceivechannel.bitrate = htolel(0);
01577    transmit_response(s, req);
01578 }
01579 
01580 static void transmit_tone(struct skinnysession *s, int tone, int instance, int reference)
01581 {
01582    struct skinny_req *req;
01583 
01584    if (tone == SKINNY_NOTONE) {
01585       /* This is bad, mmm'kay? */
01586       return;
01587    }
01588 
01589    if (tone > 0) {
01590       if (!(req = req_alloc(sizeof(struct start_tone_message), START_TONE_MESSAGE)))
01591          return;
01592       req->data.starttone.tone = htolel(tone);
01593       req->data.starttone.instance = htolel(instance);
01594       req->data.starttone.reference = htolel(reference);
01595    } else {
01596       if (!(req = req_alloc(sizeof(struct stop_tone_message), STOP_TONE_MESSAGE)))
01597          return;
01598       req->data.stoptone.instance = htolel(instance);
01599       req->data.stoptone.reference = htolel(reference);
01600    }
01601 
01602    if (tone > 0) {
01603       req->data.starttone.tone = htolel(tone);
01604    }
01605    transmit_response(s, req);
01606 }
01607 
01608 static void transmit_selectsoftkeys(struct skinnysession *s, int instance, int callid, int softkey)
01609 {
01610    struct skinny_req *req;
01611 
01612    if (!(req = req_alloc(sizeof(struct select_soft_keys_message), SELECT_SOFT_KEYS_MESSAGE)))
01613       return;
01614 
01615    req->data.selectsoftkey.instance = htolel(instance);
01616    req->data.selectsoftkey.reference = htolel(callid);
01617    req->data.selectsoftkey.softKeySetIndex = htolel(softkey);
01618    req->data.selectsoftkey.validKeyMask = htolel(0xFFFFFFFF);
01619    transmit_response(s, req);
01620 }
01621 
01622 static void transmit_lamp_indication(struct skinnysession *s, int stimulus, int instance, int indication)
01623 {
01624    struct skinny_req *req;
01625 
01626    if (!(req = req_alloc(sizeof(struct set_lamp_message), SET_LAMP_MESSAGE)))
01627       return;
01628 
01629    req->data.setlamp.stimulus = htolel(stimulus);
01630    req->data.setlamp.stimulusInstance = htolel(instance);
01631    req->data.setlamp.deviceStimulus = htolel(indication);
01632    transmit_response(s, req);
01633 }
01634 
01635 static void transmit_ringer_mode(struct skinnysession *s, int mode)
01636 {
01637    struct skinny_req *req;
01638 
01639    if (skinnydebug)
01640       ast_verbose("Setting ringer mode to '%d'.\n", mode);
01641 
01642    if (!(req = req_alloc(sizeof(struct set_ringer_message), SET_RINGER_MESSAGE)))
01643       return;
01644 
01645    req->data.setringer.ringerMode = htolel(mode);
01646    /* XXX okay, I don't quite know what this is, but here's what happens (on a 7960).
01647       Note: The phone will always show as ringing on the display.
01648 
01649       1: phone will audibly ring over and over
01650       2: phone will audibly ring only once
01651       any other value, will NOT cause the phone to audibly ring
01652    */
01653    req->data.setringer.unknown1 = htolel(1);
01654    /* XXX the value here doesn't seem to change anything.  Must be higher than 0.
01655       Perhaps a packet capture can shed some light on this. */
01656    req->data.setringer.unknown2 = htolel(1);
01657    transmit_response(s, req);
01658 }
01659 
01660 static void transmit_displaymessage(struct skinnysession *s, const char *text, int instance, int reference)
01661 {
01662    struct skinny_req *req;
01663 
01664    if (text == 0) {
01665       if (!(req = req_alloc(0, CLEAR_DISPLAY_MESSAGE)))
01666          return;
01667 
01668       req->data.clearpromptstatus.lineInstance = instance;
01669       req->data.clearpromptstatus.callReference = reference;
01670 
01671       if (skinnydebug)
01672          ast_verbose("Clearing Display\n");
01673    } else {
01674       if (!(req = req_alloc(sizeof(struct displaytext_message), DISPLAYTEXT_MESSAGE)))
01675          return;
01676 
01677       ast_copy_string(req->data.displaytext.text, text, sizeof(req->data.displaytext.text));
01678       if (skinnydebug)
01679          ast_verbose("Displaying message '%s'\n", req->data.displaytext.text);
01680    }
01681 
01682    transmit_response(s, req);
01683 }
01684 
01685 static void transmit_displaynotify(struct skinnysession *s, const char *text, int t)
01686 {
01687    struct skinny_req *req;
01688 
01689    if (!(req = req_alloc(sizeof(struct display_notify_message), DISPLAY_NOTIFY_MESSAGE)))
01690       return;
01691 
01692    ast_copy_string(req->data.displaynotify.displayMessage, text, sizeof(req->data.displaynotify.displayMessage));
01693    req->data.displaynotify.displayTimeout = htolel(t);
01694 
01695    if (skinnydebug)
01696       ast_verbose("Displaying notify '%s'\n", text);
01697 
01698    transmit_response(s, req);
01699 }
01700 
01701 static void transmit_displaypromptstatus(struct skinnysession *s, const char *text, int t, int instance, int callid)
01702 {
01703    struct skinny_req *req;
01704 
01705    if (text == 0) {
01706       if (!(req = req_alloc(sizeof(struct clear_prompt_message), CLEAR_PROMPT_MESSAGE)))
01707          return;
01708 
01709       req->data.clearpromptstatus.lineInstance = htolel(instance);
01710       req->data.clearpromptstatus.callReference = htolel(callid);
01711 
01712       if (skinnydebug)
01713          ast_verbose("Clearing Prompt\n");
01714    } else {
01715       if (!(req = req_alloc(sizeof(struct display_prompt_status_message), DISPLAY_PROMPT_STATUS_MESSAGE)))
01716          return;
01717 
01718       ast_copy_string(req->data.displaypromptstatus.promptMessage, text, sizeof(req->data.displaypromptstatus.promptMessage));
01719       req->data.displaypromptstatus.messageTimeout = htolel(t);
01720       req->data.displaypromptstatus.lineInstance = htolel(instance);
01721       req->data.displaypromptstatus.callReference = htolel(callid);
01722 
01723       if (skinnydebug)
01724          ast_verbose("Displaying Prompt Status '%s'\n", text);
01725    }
01726 
01727    transmit_response(s, req);
01728 }
01729 
01730 static void transmit_dialednumber(struct skinnysession *s, const char *text, int instance, int callid)
01731 {
01732    struct skinny_req *req;
01733 
01734    if (!(req = req_alloc(sizeof(struct dialed_number_message), DIALED_NUMBER_MESSAGE)))
01735       return;
01736 
01737    ast_copy_string(req->data.dialednumber.dialedNumber, text, sizeof(req->data.dialednumber.dialedNumber));
01738    req->data.dialednumber.lineInstance = htolel(instance);
01739    req->data.dialednumber.callReference = htolel(callid);
01740 
01741    transmit_response(s, req);
01742 }
01743 
01744 static void transmit_callstate(struct skinnysession *s, int instance, int state, unsigned callid)
01745 {
01746    struct skinny_req *req;
01747 
01748    if (state == SKINNY_ONHOOK) {
01749       if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
01750          return;
01751 
01752       req->data.closereceivechannel.conferenceId = htolel(callid);
01753       req->data.closereceivechannel.partyId = htolel(callid);
01754       transmit_response(s, req);
01755 
01756       if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
01757          return;
01758 
01759       req->data.stopmedia.conferenceId = htolel(callid);
01760       req->data.stopmedia.passThruPartyId = htolel(callid);
01761       transmit_response(s, req);
01762 
01763       transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
01764 
01765       transmit_displaypromptstatus(s, NULL, 0, instance, callid);
01766    }
01767 
01768    if (!(req = req_alloc(sizeof(struct call_state_message), CALL_STATE_MESSAGE)))
01769       return;
01770 
01771    req->data.callstate.callState = htolel(state);
01772    req->data.callstate.lineInstance = htolel(instance);
01773    req->data.callstate.callReference = htolel(callid);
01774    transmit_response(s, req);
01775 
01776    if (state == SKINNY_ONHOOK) {
01777       transmit_selectsoftkeys(s, 0, 0, KEYDEF_ONHOOK);
01778    }
01779 
01780    if (state == SKINNY_OFFHOOK || state == SKINNY_ONHOOK) {
01781       if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
01782          return;
01783 
01784       req->data.activatecallplane.lineInstance = htolel(instance);
01785       transmit_response(s, req);
01786    }
01787 }
01788 
01789 /*
01790 static int has_voicemail(struct skinny_line *l)
01791 {
01792    return ast_app_has_voicemail(l->mailbox, NULL);
01793 }
01794 */
01795 
01796 static void do_housekeeping(struct skinnysession *s)
01797 {
01798 /*
01799    int new;
01800    int old;
01801    struct skinny_device *d = s->device;
01802    struct skinny_line *l;
01803 */
01804 
01805    /* Update time on device */
01806    handle_time_date_req_message(NULL, s);
01807 
01808 /*
01809    for (l = d->lines; l; l = l->next) {
01810       if (has_voicemail(l)) {
01811          if (skinnydebug)
01812             ast_verbose("Checking for voicemail Skinny %s@%s\n", l->name, d->name);
01813          ast_app_inboxcount(l->mailbox, &new, &old);
01814          if (skinnydebug)
01815             ast_verbose("Skinny %s@%s has voicemail!\n", l->name, d->name);
01816          transmit_lamp_indication(s, STIMULUS_VOICEMAIL, l->instance, l->mwiblink?SKINNY_LAMP_BLINK:SKINNY_LAMP_ON);
01817       } else {
01818          transmit_lamp_indication(s, STIMULUS_VOICEMAIL, l->instance, SKINNY_LAMP_OFF);
01819       }
01820    }
01821 */
01822 }
01823 
01824 /* I do not believe skinny can deal with video.
01825    Anyone know differently? */
01826 /* Yes, it can.  Currently 7985 and Cisco VT Advantage do video. */
01827 static enum ast_rtp_get_result skinny_get_vrtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
01828 {
01829    struct skinny_subchannel *sub = NULL;
01830 
01831    if (!(sub = c->tech_pvt) || !(sub->vrtp))
01832       return AST_RTP_GET_FAILED;
01833 
01834    *rtp = sub->vrtp;
01835 
01836    return AST_RTP_TRY_NATIVE;
01837 }
01838 
01839 static enum ast_rtp_get_result skinny_get_rtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
01840 {
01841    struct skinny_subchannel *sub = NULL;
01842 
01843    if (!(sub = c->tech_pvt) || !(sub->rtp))
01844       return AST_RTP_GET_FAILED;
01845 
01846    *rtp = sub->rtp;
01847 
01848    return AST_RTP_TRY_NATIVE;
01849 }
01850 
01851 static int skinny_set_rtp_peer(struct ast_channel *c, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs, int nat_active)
01852 {
01853    struct skinny_subchannel *sub;
01854    sub = c->tech_pvt;
01855    if (sub) {
01856       /* transmit_modify_with_sdp(sub, rtp); @@FIXME@@ if needed */
01857       return 0;
01858    }
01859    return -1;
01860 }
01861 
01862 static struct ast_rtp_protocol skinny_rtp = {
01863    .type = "Skinny",
01864    .get_rtp_info = skinny_get_rtp_peer,
01865    .get_vrtp_info = skinny_get_vrtp_peer,
01866    .set_rtp_peer = skinny_set_rtp_peer,
01867 };
01868 
01869 static int skinny_do_debug(int fd, int argc, char *argv[])
01870 {
01871    if (argc != 3) {
01872       return RESULT_SHOWUSAGE;
01873    }
01874    skinnydebug = 1;
01875    ast_cli(fd, "Skinny Debugging Enabled\n");
01876    return RESULT_SUCCESS;
01877 }
01878 
01879 static int skinny_no_debug(int fd, int argc, char *argv[])
01880 {
01881    if (argc != 4) {
01882       return RESULT_SHOWUSAGE;
01883    }
01884    skinnydebug = 0;
01885    ast_cli(fd, "Skinny Debugging Disabled\n");
01886    return RESULT_SUCCESS;
01887 }
01888 
01889 static char *complete_skinny_reset(const char *line, const char *word, int pos, int state)
01890 {
01891    struct skinny_device *d;
01892 
01893    char *result = NULL;
01894    int wordlen = strlen(word);
01895    int which = 0;
01896 
01897    if (pos == 2) {
01898       for (d = devices; d && !result; d = d->next) {
01899          if (!strncasecmp(word, d->id, wordlen) && ++which > state)
01900             result = ast_strdup(d->id);
01901       }
01902    }
01903 
01904    return result;
01905 }
01906 
01907 static int skinny_reset_device(int fd, int argc, char *argv[])
01908 {
01909    struct skinny_device *d;
01910    struct skinny_req *req;
01911 
01912    if (argc < 3 || argc > 4) {
01913       return RESULT_SHOWUSAGE;
01914    }
01915    ast_mutex_lock(&devicelock);
01916 
01917    for (d = devices; d; d = d->next) {
01918       int fullrestart = 0;
01919       if (!strcasecmp(argv[2], d->id) || !strcasecmp(argv[2], "all")) {
01920          if (!(d->session))
01921             continue;
01922 
01923          if (!(req = req_alloc(sizeof(struct reset_message), RESET_MESSAGE)))
01924             continue;
01925 
01926          if (argc == 4 && !strcasecmp(argv[3], "restart"))
01927             fullrestart = 1;
01928 
01929          if (fullrestart)
01930             req->data.reset.resetType = 2;
01931          else
01932             req->data.reset.resetType = 1;
01933 
01934          if (option_verbose > 2)
01935             ast_verbose(VERBOSE_PREFIX_3 "%s device %s.\n", (fullrestart) ? "Restarting" : "Resetting", d->id);
01936          transmit_response(d->session, req);
01937       }
01938    }
01939    ast_mutex_unlock(&devicelock);
01940    return RESULT_SUCCESS;
01941 }
01942 
01943 static char *device2str(int type)
01944 {
01945    char *tmp;
01946 
01947    switch (type) {
01948    case SKINNY_DEVICE_NONE:
01949       return "No Device";
01950    case SKINNY_DEVICE_30SPPLUS:
01951       return "30SP Plus";
01952    case SKINNY_DEVICE_12SPPLUS:
01953       return "12SP Plus";
01954    case SKINNY_DEVICE_12SP:
01955       return "12SP";
01956    case SKINNY_DEVICE_12:
01957       return "12";
01958    case SKINNY_DEVICE_30VIP:
01959       return "30VIP";
01960    case SKINNY_DEVICE_7910:
01961       return "7910";
01962    case SKINNY_DEVICE_7960:
01963       return "7960";
01964    case SKINNY_DEVICE_7940:
01965       return "7940";
01966    case SKINNY_DEVICE_7935:
01967       return "7935";
01968    case SKINNY_DEVICE_ATA186:
01969       return "ATA186";
01970    case SKINNY_DEVICE_7941:
01971       return "7941";
01972    case SKINNY_DEVICE_7971:
01973       return "7971";
01974    case SKINNY_DEVICE_7914:
01975       return "7914";
01976    case SKINNY_DEVICE_7985:
01977       return "7985";
01978    case SKINNY_DEVICE_7911:
01979       return "7911";
01980    case SKINNY_DEVICE_7961GE:
01981       return "7961GE";
01982    case SKINNY_DEVICE_7941GE:
01983       return "7941GE";
01984    case SKINNY_DEVICE_7931:
01985       return "7931";
01986    case SKINNY_DEVICE_7921:
01987       return "7921";
01988    case SKINNY_DEVICE_7906:
01989       return "7906";
01990    case SKINNY_DEVICE_7962:
01991       return "7962";
01992    case SKINNY_DEVICE_7937:
01993       return "7937";
01994    case SKINNY_DEVICE_7942:
01995       return "7942";
01996    case SKINNY_DEVICE_7945:
01997       return "7945";
01998    case SKINNY_DEVICE_7965:
01999       return "7965";
02000    case SKINNY_DEVICE_7975:
02001       return "7975";
02002    case SKINNY_DEVICE_7905:
02003       return "7905";
02004    case SKINNY_DEVICE_7920:
02005       return "7920";
02006    case SKINNY_DEVICE_7970:
02007       return "7970";
02008    case SKINNY_DEVICE_7912:
02009       return "7912";
02010    case SKINNY_DEVICE_7902:
02011       return "7902";
02012    case SKINNY_DEVICE_CIPC:
02013       return "IP Communicator";
02014    case SKINNY_DEVICE_7961:
02015       return "7961";
02016    case SKINNY_DEVICE_7936:
02017       return "7936";
02018    case SKINNY_DEVICE_SCCPGATEWAY_AN:
02019       return "SCCPGATEWAY_AN";
02020    case SKINNY_DEVICE_SCCPGATEWAY_BRI:
02021       return "SCCPGATEWAY_BRI";
02022    case SKINNY_DEVICE_UNKNOWN:
02023       return "Unknown";
02024    default:
02025       if (!(tmp = ast_threadstorage_get(&device2str_threadbuf, DEVICE2STR_BUFSIZE)))
02026          return "Unknown";
02027       snprintf(tmp, DEVICE2STR_BUFSIZE, "UNKNOWN-%d", type);
02028       return tmp;
02029    }
02030 }
02031 
02032 static int skinny_show_devices(int fd, int argc, char *argv[])
02033 {
02034    struct skinny_device *d;
02035    struct skinny_line *l;
02036    int numlines = 0;
02037 
02038    if (argc != 3) {
02039       return RESULT_SHOWUSAGE;
02040    }
02041    ast_mutex_lock(&devicelock);
02042 
02043    ast_cli(fd, "Name                 DeviceId         IP              Type            R NL\n");
02044    ast_cli(fd, "-------------------- ---------------- --------------- --------------- - --\n");
02045    for (d = devices; d; d = d->next) {
02046       numlines = 0;
02047       for (l = d->lines; l; l = l->next) {
02048          numlines++;
02049       }
02050 
02051       ast_cli(fd, "%-20s %-16s %-15s %-15s %c %2d\n",
02052             d->name,
02053             d->id,
02054             d->session?ast_inet_ntoa(d->session->sin.sin_addr):"",
02055             device2str(d->type),
02056             d->registered?'Y':'N',
02057             numlines);
02058    }
02059    ast_mutex_unlock(&devicelock);
02060    return RESULT_SUCCESS;
02061 }
02062 
02063 static int skinny_show_lines(int fd, int argc, char *argv[])
02064 {
02065    struct skinny_device *d;
02066    struct skinny_line *l;
02067 
02068    if (argc != 3) {
02069       return RESULT_SHOWUSAGE;
02070    }
02071    ast_mutex_lock(&devicelock);
02072 
02073    ast_cli(fd, "Device Name          Instance Name                 Label               \n");
02074    ast_cli(fd, "-------------------- -------- -------------------- --------------------\n");
02075    for (d = devices; d; d = d->next) {
02076       for (l = d->lines; l; l = l->next) {
02077          ast_cli(fd, "%-20s %8d %-20s %-20s\n",
02078             d->name,
02079             l->instance,
02080             l->name,
02081             l->label);
02082       }
02083    }
02084 
02085    ast_mutex_unlock(&devicelock);
02086    return RESULT_SUCCESS;
02087 }
02088 
02089 static char show_devices_usage[] =
02090 "Usage: skinny show devices\n"
02091 "       Lists all devices known to the Skinny subsystem.\n";
02092 
02093 static char show_lines_usage[] =
02094 "Usage: skinny show lines\n"
02095 "       Lists all lines known to the Skinny subsystem.\n";
02096 
02097 static char debug_usage[] =
02098 "Usage: skinny set debug\n"
02099 "       Enables dumping of Skinny packets for debugging purposes\n";
02100 
02101 static char no_debug_usage[] =
02102 "Usage: skinny set debug off\n"
02103 "       Disables dumping of Skinny packets for debugging purposes\n";
02104 
02105 static char reset_usage[] =
02106 "Usage: skinny reset <DeviceId|all> [restart]\n"
02107 "       Causes a Skinny device to reset itself, optionally with a full restart\n";
02108 
02109 static struct ast_cli_entry cli_skinny[] = {
02110    { { "skinny", "show", "devices", NULL },
02111    skinny_show_devices, "List defined Skinny devices",
02112    show_devices_usage },
02113 
02114    { { "skinny", "show", "lines", NULL },
02115    skinny_show_lines, "List defined Skinny lines per device",
02116    show_lines_usage },
02117 
02118    { { "skinny", "set", "debug", NULL },
02119    skinny_do_debug, "Enable Skinny debugging",
02120    debug_usage },
02121 
02122    { { "skinny", "set", "debug", "off", NULL },
02123    skinny_no_debug, "Disable Skinny debugging",
02124    no_debug_usage },
02125 
02126    { { "skinny", "reset", NULL },
02127    skinny_reset_device, "Reset Skinny device(s)",
02128    reset_usage, complete_skinny_reset },
02129 };
02130 
02131 #if 0
02132 static struct skinny_paging_device *build_paging_device(const char *cat, struct ast_variable *v)
02133 {
02134    return NULL;
02135 }
02136 #endif
02137 
02138 static struct skinny_device *build_device(const char *cat, struct ast_variable *v)
02139 {
02140    struct skinny_device *d;
02141    struct skinny_line *l;
02142    struct skinny_speeddial *sd;
02143    struct skinny_addon *a;
02144    int lineInstance = 1;
02145    int speeddialInstance = 1;
02146    int y = 0;
02147 
02148    if (!(d = ast_calloc(1, sizeof(struct skinny_device)))) {
02149       return NULL;
02150    } else {
02151       ast_copy_string(d->name, cat, sizeof(d->name));
02152       d->lastlineinstance = 1;
02153       d->capability = default_capability;
02154       d->prefs = default_prefs;
02155       d->earlyrtp = 1;
02156       while(v) {
02157          if (!strcasecmp(v->name, "host")) {
02158             if (ast_get_ip(&d->addr, v->value)) {
02159                free(d);
02160                return NULL;
02161             }
02162          } else if (!strcasecmp(v->name, "port")) {
02163             d->addr.sin_port = htons(atoi(v->value));
02164          } else if (!strcasecmp(v->name, "device")) {
02165             ast_copy_string(d->id, v->value, sizeof(d->id));
02166          } else if (!strcasecmp(v->name, "permit") || !strcasecmp(v->name, "deny")) {
02167             d->ha = ast_append_ha(v->name, v->value, d->ha);
02168          } else if (!strcasecmp(v->name, "context")) {
02169             ast_copy_string(context, v->value, sizeof(context));
02170          } else if (!strcasecmp(v->name, "allow")) {
02171             ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 1);
02172          } else if (!strcasecmp(v->name, "disallow")) {
02173             ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 0);
02174          } else if (!strcasecmp(v->name, "version")) {
02175             ast_copy_string(d->version_id, v->value, sizeof(d->version_id));
02176          } else if (!strcasecmp(v->name, "earlyrtp")) {
02177             d->earlyrtp = ast_true(v->value);
02178          } else if (!strcasecmp(v->name, "nat")) {
02179             nat = ast_true(v->value);
02180          } else if (!strcasecmp(v->name, "callerid")) {
02181             if (!strcasecmp(v->value, "asreceived")) {
02182                cid_num[0] = '\0';
02183                cid_name[0] = '\0';
02184             } else {
02185                ast_callerid_split(v->value, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
02186             }
02187          } else if (!strcasecmp(v->name, "language")) {
02188             ast_copy_string(language, v->value, sizeof(language));
02189          } else if (!strcasecmp(v->name, "accountcode")) {
02190             ast_copy_string(accountcode, v->value, sizeof(accountcode));
02191          } else if (!strcasecmp(v->name, "amaflags")) {
02192             y = ast_cdr_amaflags2int(v->value);
02193             if (y < 0) {
02194                ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value, v->lineno);
02195             } else {
02196                amaflags = y;
02197             }
02198          } else if (!strcasecmp(v->name, "mohinterpret") || !strcasecmp(v->name, "musiconhold")) {
02199             ast_copy_string(mohinterpret, v->value, sizeof(mohinterpret));
02200          } else if (!strcasecmp(v->name, "mohsuggest")) {
02201             ast_copy_string(mohsuggest, v->value, sizeof(mohsuggest));
02202          } else if (!strcasecmp(v->name, "callgroup")) {
02203             cur_callergroup = ast_get_group(v->value);
02204          } else if (!strcasecmp(v->name, "pickupgroup")) {
02205             cur_pickupgroup = ast_get_group(v->value);
02206          } else if (!strcasecmp(v->name, "immediate")) {
02207             immediate = ast_true(v->value);
02208          } else if (!strcasecmp(v->name, "cancallforward")) {
02209             cancallforward = ast_true(v->value);
02210          } else if (!strcasecmp(v->name, "mailbox")) {
02211             ast_copy_string(mailbox, v->value, sizeof(mailbox));
02212          } else if (!strcasecmp(v->name, "hasvoicemail")) {
02213             if (ast_true(v->value) && ast_strlen_zero(mailbox)) {
02214                ast_copy_string(mailbox, cat, sizeof(mailbox));
02215             }
02216          } else if (!strcasecmp(v->name, "callreturn")) {
02217             callreturn = ast_true(v->value);
02218          } else if (!strcasecmp(v->name, "callwaiting")) {
02219             callwaiting = ast_true(v->value);
02220          } else if (!strcasecmp(v->name, "transfer")) {
02221             transfer = ast_true(v->value);
02222          } else if (!strcasecmp(v->name, "threewaycalling")) {
02223             threewaycalling = ast_true(v->value);
02224          } else if (!strcasecmp(v->name, "mwiblink")) {
02225             mwiblink = ast_true(v->value);
02226          } else if (!strcasecmp(v->name, "linelabel")) {
02227             ast_copy_string(linelabel, v->value, sizeof(linelabel));
02228          } else if (!strcasecmp(v->name, "speeddial")) {
02229             if (!(sd = ast_calloc(1, sizeof(struct skinny_speeddial)))) {
02230                return NULL;
02231             } else {
02232                char *stringp, *exten, *label;
02233                stringp = v->value;
02234                exten = strsep(&stringp, ",");
02235                label = strsep(&stringp, ",");
02236                ast_mutex_init(&sd->lock);
02237                ast_copy_string(sd->exten, exten, sizeof(sd->exten));
02238                if (label)
02239                   ast_copy_string(sd->label, label, sizeof(sd->label));
02240                else
02241                   ast_copy_string(sd->label, exten, sizeof(sd->label));
02242                sd->instance = speeddialInstance++;
02243 
02244                sd->parent = d;
02245 
02246                sd->next = d->speeddials;
02247                d->speeddials = sd;
02248             }
02249          } else if (!strcasecmp(v->name, "addon")) {
02250             if (!(a = ast_calloc(1, sizeof(struct skinny_addon)))) {
02251                return NULL;
02252             } else {
02253                ast_mutex_init(&a->lock);
02254                ast_copy_string(a->type, v->value, sizeof(a->type));
02255 
02256                a->next = d->addons;
02257                d->addons = a;
02258             }
02259          } else if (!strcasecmp(v->name, "trunk") || !strcasecmp(v->name, "line")) {
02260             if (!(l = ast_calloc(1, sizeof(struct skinny_line)))) {
02261                return NULL;
02262             } else {
02263                ast_mutex_init(&l->lock);
02264                ast_copy_string(l->name, v->value, sizeof(l->name));
02265 
02266                /* XXX Should we check for uniqueness?? XXX */
02267                ast_copy_string(l->context, context, sizeof(l->context));
02268                ast_copy_string(l->cid_num, cid_num, sizeof(l->cid_num));
02269                ast_copy_string(l->cid_name, cid_name, sizeof(l->cid_name));
02270                ast_copy_string(l->label, linelabel, sizeof(l->label));
02271                ast_copy_string(l->language, language, sizeof(l->language));
02272                ast_copy_string(l->mohinterpret, mohinterpret, sizeof(l->mohinterpret));
02273                ast_copy_string(l->mohsuggest, mohsuggest, sizeof(l->mohsuggest));
02274                ast_copy_string(l->mailbox, mailbox, sizeof(l->mailbox));
02275                if (!ast_strlen_zero(mailbox)) {
02276                   if (option_verbose > 2)
02277                      ast_verbose(VERBOSE_PREFIX_3 "Setting mailbox '%s' on %s@%s\n", mailbox, d->name, l->name);
02278                }
02279                l->msgstate = -1;
02280                l->capability = d->capability;
02281                l->prefs = d->prefs;
02282                l->parent = d;
02283                if (!strcasecmp(v->name, "trunk")) {
02284                   l->type = TYPE_TRUNK;
02285                } else {
02286                   l->type = TYPE_LINE;
02287                }
02288                l->immediate = immediate;
02289                l->callgroup = cur_callergroup;
02290                l->pickupgroup = cur_pickupgroup;
02291                l->callreturn = callreturn;
02292                l->cancallforward = cancallforward;
02293                l->callwaiting = callwaiting;
02294                l->transfer = transfer;
02295                l->threewaycalling = threewaycalling;
02296                l->mwiblink = mwiblink;
02297                l->onhooktime = time(NULL);
02298                l->instance = lineInstance++;
02299                /* ASSUME we're onhook at this point */
02300                l->hookstate = SKINNY_ONHOOK;
02301                l->nat = nat;
02302 
02303                l->next = d->lines;
02304                d->lines = l;
02305             }
02306          } else {
02307             ast_log(LOG_WARNING, "Don't know keyword '%s' at line %d\n", v->name, v->lineno);
02308          }
02309          v = v->next;
02310       }
02311 
02312       if (!d->lines) {
02313          ast_log(LOG_ERROR, "A Skinny device must have at least one line!\n");
02314          return NULL;
02315       }
02316       if (/*d->addr.sin_addr.s_addr && */!ntohs(d->addr.sin_port)) {
02317          d->addr.sin_port = htons(DEFAULT_SKINNY_PORT);
02318       }
02319 #if 0
02320       /* I don't think we need this anymore at all, since d->ourip is set in skinny_register now */
02321       if (d->addr.sin_addr.s_addr) {
02322          /* XXX See note above, in 'host' option. */
02323          if (ast_ouraddrfor(&d->addr.sin_addr, &d->ourip)) {
02324             d->ourip = __ourip;
02325          }
02326       } else {
02327          d->ourip = __ourip;
02328       }
02329 #endif
02330    }
02331    return d;
02332 }
02333 
02334 static void start_rtp(struct skinny_subchannel *sub)
02335 {
02336    struct skinny_line *l = sub->parent;
02337    struct skinny_device *d = l->parent;
02338    int hasvideo = 0;
02339 
02340    ast_mutex_lock(&sub->lock);
02341    /* Allocate the RTP */
02342    sub->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
02343    if (hasvideo)
02344       sub->vrtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
02345    
02346    if (sub->rtp && sub->owner) {
02347       sub->owner->fds[0] = ast_rtp_fd(sub->rtp);
02348       sub->owner->fds[1] = ast_rtcp_fd(sub->rtp);
02349    }
02350    if (hasvideo && sub->vrtp && sub->owner) {
02351       sub->owner->fds[2] = ast_rtp_fd(sub->vrtp);
02352       sub->owner->fds[3] = ast_rtcp_fd(sub->vrtp);
02353    }
02354    if (sub->rtp) {
02355       ast_rtp_setnat(sub->rtp, l->nat);
02356    }
02357    if (sub->vrtp) {
02358       ast_rtp_setnat(sub->vrtp, l->nat);
02359    }
02360    /* Set Frame packetization */
02361    if (sub->rtp)
02362       ast_rtp_codec_setpref(sub->rtp, &l->prefs);
02363 
02364    /* Create the RTP connection */
02365    transmit_connect(d->session, sub);
02366    ast_mutex_unlock(&sub->lock);
02367 }
02368 
02369 static void *skinny_newcall(void *data)
02370 {
02371    struct ast_channel *c = data;
02372    struct skinny_subchannel *sub = c->tech_pvt;
02373    struct skinny_line *l = sub->parent;
02374    struct skinny_device *d = l->parent;
02375    struct skinnysession *s = d->session;
02376    int res = 0;
02377 
02378    ast_copy_string(l->lastnumberdialed, c->exten, sizeof(l->lastnumberdialed));
02379    ast_set_callerid(c,
02380       l->hidecallerid ? "" : l->cid_num,
02381       l->hidecallerid ? "" : l->cid_name,
02382       c->cid.cid_ani ? NULL : l->cid_num);
02383    ast_setstate(c, AST_STATE_RING);
02384    if (!sub->rtp) {
02385       start_rtp(sub);
02386    }
02387    res = ast_pbx_run(c);
02388    if (res) {
02389       ast_log(LOG_WARNING, "PBX exited non-zero\n");
02390       transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02391    }
02392    return NULL;
02393 }
02394 
02395 static void *skinny_ss(void *data)
02396 {
02397    struct ast_channel *c = data;
02398    struct skinny_subchannel *sub = c->tech_pvt;
02399    struct skinny_line *l = sub->parent;
02400    struct skinny_device *d = l->parent;
02401    struct skinnysession *s = d->session;
02402    int len = 0;
02403    int timeout = firstdigittimeout;
02404    int res = 0;
02405    int getforward=0;
02406    int loop_pause = 100;
02407 
02408    if (option_verbose > 2)
02409       ast_verbose( VERBOSE_PREFIX_3 "Starting simple switch on '%s@%s'\n", l->name, d->name);
02410    len = strlen(d->exten);
02411 
02412    while (len < AST_MAX_EXTENSION-1) {
02413 
02414       res = 1;  /* Assume we will get a digit */
02415       while (strlen(d->exten) == len) {
02416          ast_safe_sleep(c, loop_pause);
02417          timeout -= loop_pause;
02418          if (timeout <= 0){
02419             res = 0;
02420             break;
02421          }
02422       }
02423 
02424       len = strlen(d->exten);
02425 
02426       if (!ast_ignore_pattern(c->context, d->exten)) {
02427          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02428       }
02429 
02430       if (ast_exists_extension(c, c->context, d->exten, 1, l->cid_num)) {
02431          if (!res || !ast_matchmore_extension(c, c->context, d->exten, 1, l->cid_num)) {
02432             if (getforward) {
02433                /* Record this as the forwarding extension */
02434                ast_copy_string(l->call_forward, d->exten, sizeof(l->call_forward));
02435                if (option_verbose > 2)
02436                   ast_verbose(VERBOSE_PREFIX_3 "Setting call forward to '%s' on channel %s\n",
02437                      l->call_forward, c->name);
02438                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
02439                if (res) {
02440                   break;
02441                }
02442                ast_safe_sleep(c, 500);
02443                ast_indicate(c, -1);
02444                ast_safe_sleep(c, 1000);
02445                memset(d->exten, 0, sizeof(d->exten));
02446                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
02447                len = 0;
02448                getforward = 0;
02449             } else {
02450                ast_copy_string(c->exten, d->exten, sizeof(c->exten));
02451                ast_copy_string(l->lastnumberdialed, d->exten, sizeof(l->lastnumberdialed));
02452                memset (d->exten, 0, sizeof(d->exten));
02453                skinny_newcall(c);
02454                return NULL;
02455             }
02456          } else {
02457             /* It's a match, but they just typed a digit, and there is an ambiguous match,
02458                so just set the timeout to matchdigittimeout and wait some more */
02459             timeout = matchdigittimeout;
02460          }
02461       } else if (res == 0) {
02462          ast_log(LOG_DEBUG, "Not enough digits (and no ambiguous match)...\n");
02463          memset(d->exten, 0, sizeof(d->exten));
02464          transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02465          if (sub->owner && sub->owner->_state != AST_STATE_UP) {
02466             ast_indicate(c, -1);
02467             ast_hangup(c);
02468          }
02469          return NULL;
02470       } else if (!ast_canmatch_extension(c, c->context, d->exten, 1, c->cid.cid_num) &&
02471             ((d->exten[0] != '*') || (!ast_strlen_zero(d->exten) > 2))) {
02472          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);
02473          memset(d->exten, 0, sizeof(d->exten));
02474          transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02475          /* hang out for 3 seconds to let congestion play */
02476          ast_safe_sleep(c, 3000);
02477          break;
02478       }
02479       if (!timeout) {
02480          timeout = gendigittimeout;
02481       }
02482       if (len && !ast_ignore_pattern(c->context, d->exten)) {
02483          ast_indicate(c, -1);
02484       }
02485    }
02486    if (c)
02487       ast_hangup(c);
02488 
02489    memset(d->exten, 0, sizeof(d->exten));
02490    return NULL;
02491 }
02492 
02493 
02494 
02495 static int skinny_call(struct ast_channel *ast, char *dest, int timeout)
02496 {
02497    int res = 0;
02498    int tone = 0;
02499    struct skinny_subchannel *sub = ast->tech_pvt;
02500    struct skinny_line *l = sub->parent;
02501    struct skinny_device *d = l->parent;
02502    struct skinnysession *s = d->session;
02503 
02504    if (!d->registered) {
02505       ast_log(LOG_ERROR, "Device not registered, cannot call %s\n", dest);
02506       return -1;
02507    }
02508 
02509    if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
02510       ast_log(LOG_WARNING, "skinny_call called on %s, neither down nor reserved\n", ast->name);
02511       return -1;
02512    }
02513 
02514    if (skinnydebug)
02515       ast_verbose(VERBOSE_PREFIX_3 "skinny_call(%s)\n", ast->name);
02516 
02517    if (l->dnd) {
02518       ast_queue_control(ast, AST_CONTROL_BUSY);
02519       return -1;
02520    }
02521 
02522    switch (l->hookstate) {
02523    case SKINNY_OFFHOOK:
02524       tone = SKINNY_CALLWAITTONE;
02525       break;
02526    case SKINNY_ONHOOK:
02527       tone = SKINNY_ALERT;
02528       break;
02529    default:
02530       ast_log(LOG_ERROR, "Don't know how to deal with hookstate %d\n", l->hookstate);
02531       break;
02532    }
02533 
02534    transmit_callstate(s, l->instance, SKINNY_RINGIN, sub->callid);
02535    transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGIN);
02536    transmit_displaypromptstatus(s, "Ring-In", 0, l->instance, sub->callid);
02537    transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, l->cid_name, l->cid_num, l->instance, sub->callid, 1);
02538    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
02539    transmit_ringer_mode(s, SKINNY_RING_INSIDE);
02540 
02541    ast_setstate(ast, AST_STATE_RINGING);
02542    ast_queue_control(ast, AST_CONTROL_RINGING);
02543    sub->outgoing = 1;
02544    return res;
02545 }
02546 
02547 static int skinny_hangup(struct ast_channel *ast)
02548 {
02549    struct skinny_subchannel *sub = ast->tech_pvt;
02550    struct skinny_line *l;
02551    struct skinny_device *d;
02552    struct skinnysession *s;
02553 
02554    if (!sub) {
02555       ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n");
02556       return 0;
02557    }
02558    l = sub->parent;
02559    d = l->parent;
02560    s = d->session;
02561    if (skinnydebug)
02562       ast_verbose("skinny_hangup(%s) on %s@%s\n", ast->name, l->name, d->name);
02563 
02564    if (d->registered) {
02565       if ((l->type = TYPE_LINE) && (l->hookstate == SKINNY_OFFHOOK)) {
02566          l->hookstate = SKINNY_ONHOOK;
02567          transmit_callstate(s, l->instance, SKINNY_ONHOOK, sub->callid);
02568          transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_OFF);
02569          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
02570       } else if ((l->type = TYPE_LINE) && (l->hookstate == SKINNY_ONHOOK)) {
02571          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02572          transmit_callstate(s, l->instance, SKINNY_ONHOOK, sub->callid);
02573          transmit_ringer_mode(s, SKINNY_RING_OFF);
02574          transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_OFF);
02575          do_housekeeping(s);
02576       }
02577    }
02578    ast_mutex_lock(&sub->lock);
02579    sub->owner = NULL;
02580    ast->tech_pvt = NULL;
02581    sub->alreadygone = 0;
02582    sub->outgoing = 0;
02583    if (sub->rtp) {
02584       ast_rtp_destroy(sub->rtp);
02585       sub->rtp = NULL;
02586    }
02587    ast_mutex_unlock(&sub->lock);
02588    return 0;
02589 }
02590 
02591 static int skinny_answer(struct ast_channel *ast)
02592 {
02593    int res = 0;
02594    struct skinny_subchannel *sub = ast->tech_pvt;
02595    struct skinny_line *l = sub->parent;
02596    struct skinny_device *d = l->parent;
02597    struct skinnysession *s = d->session;
02598    char exten[AST_MAX_EXTENSION] = "";
02599 
02600    ast_copy_string(exten, S_OR(ast->macroexten, ast->exten), sizeof(exten));
02601 
02602    sub->cxmode = SKINNY_CX_SENDRECV;
02603    if (!sub->rtp) {
02604       start_rtp(sub);
02605    }
02606    if (skinnydebug)
02607       ast_verbose("skinny_answer(%s) on %s@%s-%d\n", ast->name, l->name, d->name, sub->callid);
02608    if (ast->_state != AST_STATE_UP) {
02609       ast_setstate(ast, AST_STATE_UP);
02610    }
02611 
02612    transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02613    /* order matters here...
02614       for some reason, transmit_callinfo must be before transmit_callstate,
02615       or you won't get keypad messages in some situations. */
02616    transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2);
02617    transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
02618    transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
02619    transmit_dialednumber(s, exten, l->instance, sub->callid);
02620    transmit_displaypromptstatus(s, "Connected", 0, l->instance, sub->callid);
02621    return res;
02622 }
02623 
02624 /* Retrieve audio/etc from channel.  Assumes sub->lock is already held. */
02625 static struct ast_frame *skinny_rtp_read(struct skinny_subchannel *sub)
02626 {
02627    struct ast_channel *ast = sub->owner;
02628    struct ast_frame *f;
02629 
02630    if (!sub->rtp) {
02631       /* We have no RTP allocated for this channel */
02632       return &ast_null_frame;
02633    }
02634 
02635    switch(ast->fdno) {
02636    case 0:
02637       f = ast_rtp_read(sub->rtp);   /* RTP Audio */
02638       break;
02639    case 1:
02640       f = ast_rtcp_read(sub->rtp);  /* RTCP Control Channel */
02641       break;
02642    case 2:
02643       f = ast_rtp_read(sub->vrtp);  /* RTP Video */
02644       break;
02645    case 3:
02646       f = ast_rtcp_read(sub->vrtp); /* RTCP Control Channel for video */
02647       break;
02648 #if 0
02649    case 5:
02650       /* Not yet supported */
02651       f = ast_udptl_read(sub->udptl);  /* UDPTL for T.38 */
02652       break;
02653 #endif
02654    default:
02655       f = &ast_null_frame;
02656    }
02657 
02658    if (ast) {
02659       /* We already hold the channel lock */
02660       if (f->frametype == AST_FRAME_VOICE) {
02661          if (f->subclass != ast->nativeformats) {
02662             ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass);
02663             ast->nativeformats = f->subclass;
02664             ast_set_read_format(ast, ast->readformat);
02665             ast_set_write_format(ast, ast->writeformat);
02666          }
02667       }
02668    }
02669    return f;
02670 }
02671 
02672 static struct ast_frame *skinny_read(struct ast_channel *ast)
02673 {
02674    struct ast_frame *fr;
02675    struct skinny_subchannel *sub = ast->tech_pvt;
02676    ast_mutex_lock(&sub->lock);
02677    fr = skinny_rtp_read(sub);
02678    ast_mutex_unlock(&sub->lock);
02679    return fr;
02680 }
02681 
02682 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame)
02683 {
02684    struct skinny_subchannel *sub = ast->tech_pvt;
02685    int res = 0;
02686    if (frame->frametype != AST_FRAME_VOICE) {
02687       if (frame->frametype == AST_FRAME_IMAGE) {
02688          return 0;
02689       } else {
02690          ast_log(LOG_WARNING, "Can't send %d type frames with skinny_write\n", frame->frametype);
02691          return 0;
02692       }
02693    } else {
02694       if (!(frame->subclass & ast->nativeformats)) {
02695          ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
02696             frame->subclass, ast->nativeformats, ast->readformat, ast->writeformat);
02697          return -1;
02698       }
02699    }
02700    if (sub) {
02701       ast_mutex_lock(&sub->lock);
02702       if (sub->rtp) {
02703          res = ast_rtp_write(sub->rtp, frame);
02704       }
02705       ast_mutex_unlock(&sub->lock);
02706    }
02707    return res;
02708 }
02709 
02710 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
02711 {
02712    struct skinny_subchannel *sub = newchan->tech_pvt;
02713    ast_log(LOG_NOTICE, "skinny_fixup(%s, %s)\n", oldchan->name, newchan->name);
02714    if (sub->owner != oldchan) {
02715       ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, sub->owner);
02716       return -1;
02717    }
02718    sub->owner = newchan;
02719    return 0;
02720 }
02721 
02722 static int skinny_senddigit_begin(struct ast_channel *ast, char digit)
02723 {
02724    return -1; /* Start inband indications */
02725 }
02726 
02727 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration)
02728 {
02729 #if 0
02730    struct skinny_subchannel *sub = ast->tech_pvt;
02731    struct skinny_line *l = sub->parent;
02732    struct skinny_device *d = l->parent;
02733    int tmp;
02734    /* not right */
02735    sprintf(tmp, "%d", digit);
02736    transmit_tone(d->session, digit, l->instance, sub->callid);
02737 #endif
02738    return -1; /* Stop inband indications */
02739 }
02740 
02741 static char *control2str(int ind) {
02742    char *tmp;
02743 
02744    switch (ind) {
02745    case AST_CONTROL_HANGUP:
02746       return "Other end has hungup";
02747    case AST_CONTROL_RING:
02748       return "Local ring";
02749    case AST_CONTROL_RINGING:
02750       return "Remote end is ringing";
02751    case AST_CONTROL_ANSWER:
02752       return "Remote end has answered";
02753    case AST_CONTROL_BUSY:
02754       return "Remote end is busy";
02755    case AST_CONTROL_TAKEOFFHOOK:
02756       return "Make it go off hook";
02757    case AST_CONTROL_OFFHOOK:
02758       return "Line is off hook";
02759    case AST_CONTROL_CONGESTION:
02760       return "Congestion (circuits busy)";
02761    case AST_CONTROL_FLASH:
02762       return "Flash hook";
02763    case AST_CONTROL_WINK:
02764       return "Wink";
02765    case AST_CONTROL_OPTION:
02766       return "Set a low-level option";
02767    case AST_CONTROL_RADIO_KEY:
02768       return "Key Radio";
02769    case AST_CONTROL_RADIO_UNKEY:
02770       return "Un-Key Radio";
02771    case AST_CONTROL_PROGRESS:
02772       return "Remote end is making Progress";
02773    case AST_CONTROL_PROCEEDING:
02774       return "Remote end is proceeding";
02775    case AST_CONTROL_HOLD:
02776       return "Hold";
02777    case AST_CONTROL_UNHOLD:
02778       return "Unhold";
02779    case -1:
02780       return "Stop tone";
02781    default:
02782       if (!(tmp = ast_threadstorage_get(&control2str_threadbuf, CONTROL2STR_BUFSIZE)))
02783                         return "Unknown";
02784       snprintf(tmp, CONTROL2STR_BUFSIZE, "UNKNOWN-%d", ind);
02785       return tmp;
02786    }
02787 }
02788 
02789 
02790 static int skinny_indicate(struct ast_channel *ast, int ind, const void *data, size_t datalen)
02791 {
02792    struct skinny_subchannel *sub = ast->tech_pvt;
02793    struct skinny_line *l = sub->parent;
02794    struct skinny_device *d = l->parent;
02795    struct skinnysession *s = d->session;
02796    char exten[AST_MAX_EXTENSION] = "";
02797 
02798    if (!s) {
02799       ast_log(LOG_NOTICE, "Asked to indicate '%s' condition on channel %s, but session does not exist.\n", control2str(ind), ast->name);
02800       return -1;
02801    }
02802 
02803    ast_copy_string(exten, S_OR(ast->macroexten, ast->exten), sizeof(exten));
02804 
02805    if (skinnydebug)
02806       ast_verbose(VERBOSE_PREFIX_3 "Asked to indicate '%s' condition on channel %s\n", control2str(ind), ast->name);
02807    switch(ind) {
02808    case AST_CONTROL_RINGING:
02809       if (ast->_state != AST_STATE_UP) {
02810          if (!sub->progress) {
02811             if (!d->earlyrtp) {
02812                transmit_tone(s, SKINNY_ALERT, l->instance, sub->callid);
02813             }
02814             transmit_callstate(s, l->instance, SKINNY_RINGOUT, sub->callid);
02815             transmit_dialednumber(s, exten, l->instance, sub->callid);
02816             transmit_displaypromptstatus(s, "Ring Out", 0, l->instance, sub->callid);
02817             transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2); /* 2 = outgoing from phone */
02818             sub->ringing = 1;
02819             if (!d->earlyrtp) {
02820                break;
02821             }
02822          }
02823       }
02824       return -1; /* Tell asterisk to provide inband signalling */
02825    case AST_CONTROL_BUSY:
02826       if (ast->_state != AST_STATE_UP) {
02827          if (!d->earlyrtp) {
02828             transmit_tone(s, SKINNY_BUSYTONE, l->instance, sub->callid);
02829          }
02830          transmit_callstate(s, l->instance, SKINNY_BUSY, sub->callid);
02831          sub->alreadygone = 1;
02832          ast_softhangup_nolock(ast, AST_SOFTHANGUP_DEV);
02833          if (!d->earlyrtp) {
02834             break;
02835          }
02836       }
02837       return -1; /* Tell asterisk to provide inband signalling */
02838    case AST_CONTROL_CONGESTION:
02839       if (ast->_state != AST_STATE_UP) {
02840          if (!d->earlyrtp) {
02841             transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02842          }
02843          transmit_callstate(s, l->instance, SKINNY_CONGESTION, sub->callid);
02844          sub->alreadygone = 1;
02845          ast_softhangup_nolock(ast, AST_SOFTHANGUP_DEV);
02846          if (!d->earlyrtp) {
02847             break;
02848          }
02849       }
02850       return -1; /* Tell asterisk to provide inband signalling */
02851    case AST_CONTROL_PROGRESS:
02852       if ((ast->_state != AST_STATE_UP) && !sub->progress && !sub->outgoing) {
02853          if (!d->earlyrtp) {
02854             transmit_tone(s, SKINNY_ALERT, l->instance, sub->callid);
02855          }
02856          transmit_callstate(s, l->instance, SKINNY_PROGRESS, sub->callid);
02857          transmit_displaypromptstatus(s, "Call Progress", 0, l->instance, sub->callid);
02858          transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2); /* 2 = outgoing from phone */
02859          sub->progress = 1;
02860          if (!d->earlyrtp) {
02861             break;
02862          }
02863       }
02864       return -1; /* Tell asterisk to provide inband signalling */
02865    case -1:  /* STOP_TONE */
02866       transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02867       break;
02868    case AST_CONTROL_HOLD:
02869       ast_moh_start(ast, data, l->mohinterpret);
02870       break;
02871    case AST_CONTROL_UNHOLD:
02872       ast_moh_stop(ast);
02873       break;
02874    case AST_CONTROL_PROCEEDING:
02875       break;
02876    case AST_CONTROL_SRCUPDATE:
02877       ast_rtp_new_source(sub->rtp);
02878       break;
02879    case AST_CONTROL_SRCCHANGE:
02880       ast_rtp_change_source(sub->rtp);
02881       break;
02882    default:
02883       ast_log(LOG_WARNING, "Don't know how to indicate condition %d\n", ind);
02884       return -1; /* Tell asterisk to provide inband signalling */
02885    }
02886    return 0;
02887 }
02888 
02889 static struct ast_channel *skinny_new(struct skinny_line *l, int state)
02890 {
02891    struct ast_channel *tmp;
02892    struct skinny_subchannel *sub;
02893    struct skinny_device *d = l->parent;
02894    int fmt;
02895 
02896    tmp = ast_channel_alloc(1, state, l->cid_num, l->cid_name, l->accountcode, l->exten, l->context, l->amaflags, "Skinny/%s@%s-%d", l->name, d->name, callnums);
02897    if (!tmp) {
02898       ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
02899       return NULL;
02900    } else {
02901       sub = ast_calloc(1, sizeof(struct skinny_subchannel));
02902       if (!sub) {
02903          ast_log(LOG_WARNING, "Unable to allocate Skinny subchannel\n");
02904          return NULL;
02905       } else {
02906          ast_mutex_init(&sub->lock);
02907 
02908          sub->owner = tmp;
02909          sub->callid = callnums++;
02910          d->lastlineinstance = l->instance;
02911          d->lastcallreference = sub->callid;
02912          sub->cxmode = SKINNY_CX_INACTIVE;
02913          sub->nat = l->nat;
02914          sub->parent = l;
02915          sub->onhold = 0;
02916 
02917          sub->next = l->sub;
02918          l->sub = sub;
02919       }
02920       tmp->tech = &skinny_tech;
02921       tmp->tech_pvt = sub;
02922       tmp->nativeformats = l->capability;
02923       if (!tmp->nativeformats)
02924          tmp->nativeformats = default_capability;
02925       fmt = ast_best_codec(tmp->nativeformats);
02926       if (skinnydebug)
02927          ast_verbose("skinny_new: tmp->nativeformats=%d fmt=%d\n", tmp->nativeformats, fmt);
02928       if (sub->rtp) {
02929          tmp->fds[0] = ast_rtp_fd(sub->rtp);
02930       }
02931       if (state == AST_STATE_RING) {
02932          tmp->rings = 1;
02933       }
02934       tmp->writeformat = fmt;
02935       tmp->rawwriteformat = fmt;
02936       tmp->readformat = fmt;
02937       tmp->rawreadformat = fmt;
02938       if (!ast_strlen_zero(l->language))
02939          ast_string_field_set(tmp, language, l->language);
02940       if (!ast_strlen_zero(l->accountcode))
02941          ast_string_field_set(tmp, accountcode, l->accountcode);
02942       if (l->amaflags)
02943          tmp->amaflags = l->amaflags;
02944 
02945       ast_module_ref(ast_module_info->self);
02946       tmp->callgroup = l->callgroup;
02947       tmp->pickupgroup = l->pickupgroup;
02948       ast_string_field_set(tmp, call_forward, l->call_forward);
02949       ast_copy_string(tmp->context, l->context, sizeof(tmp->context));
02950       ast_copy_string(tmp->exten, l->exten, sizeof(tmp->exten));
02951 
02952       /* Don't use ast_set_callerid() here because it will
02953        * generate a needless NewCallerID event */
02954       tmp->cid.cid_ani = ast_strdup(l->cid_num);
02955 
02956       tmp->priority = 1;
02957       tmp->adsicpe = AST_ADSI_UNAVAILABLE;
02958 
02959       if (sub->rtp)
02960          ast_jb_configure(tmp, &global_jbconf);
02961 
02962       if (state != AST_STATE_DOWN) {
02963          if (ast_pbx_start(tmp)) {
02964             ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
02965             ast_hangup(tmp);
02966             tmp = NULL;
02967          }
02968       }
02969    }
02970    return tmp;
02971 }
02972 
02973 static int skinny_hold(struct skinny_subchannel *sub)
02974 {
02975    struct skinny_line *l = sub->parent;
02976    struct skinny_device *d = l->parent;
02977    struct skinnysession *s = d->session;
02978    struct skinny_req *req;
02979 
02980    /* Don't try to hold a channel that doesn't exist */
02981    if (!sub || !sub->owner)
02982       return 0;
02983 
02984    /* Channel needs to be put on hold */
02985    if (skinnydebug)
02986       ast_verbose("Putting on Hold(%d)\n", l->instance);
02987 
02988    ast_queue_control_data(sub->owner, AST_CONTROL_HOLD,
02989       S_OR(l->mohsuggest, NULL),
02990       !ast_strlen_zero(l->mohsuggest) ? strlen(l->mohsuggest) + 1 : 0);
02991 
02992    if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
02993       return 0;
02994 
02995    req->data.activatecallplane.lineInstance = htolel(l->instance);
02996    transmit_response(s, req);
02997 
02998    if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
02999       return 0;
03000 
03001    req->data.closereceivechannel.conferenceId = htolel(sub->callid);
03002    req->data.closereceivechannel.partyId = htolel(sub->callid);
03003    transmit_response(s, req);
03004 
03005    if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
03006       return 0;
03007 
03008    req->data.stopmedia.conferenceId = htolel(sub->callid);
03009    req->data.stopmedia.passThruPartyId = htolel(sub->callid);
03010    transmit_response(s, req);
03011 
03012    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
03013    sub->onhold = 1;
03014    return 1;
03015 }
03016 
03017 static int skinny_unhold(struct skinny_subchannel *sub)
03018 {
03019    struct skinny_line *l = sub->parent;
03020    struct skinny_device *d = l->parent;
03021    struct skinnysession *s = d->session;
03022    struct skinny_req *req;
03023 
03024    /* Don't try to unhold a channel that doesn't exist */
03025    if (!sub || !sub->owner)
03026       return 0;
03027 
03028    /* Channel is on hold, so we will unhold */
03029    if (skinnydebug)
03030       ast_verbose("Taking off Hold(%d)\n", l->instance);
03031 
03032    ast_queue_control(sub->owner, AST_CONTROL_UNHOLD);
03033 
03034    if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
03035       return 0;
03036 
03037    req->data.activatecallplane.lineInstance = htolel(l->instance);
03038    transmit_response(s, req);
03039 
03040    transmit_connect(s, sub);
03041    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
03042    sub->onhold = 0;
03043    return 1;
03044 }
03045 
03046 static int handle_keep_alive_message(struct skinny_req *req, struct skinnysession *s)
03047 {
03048    if (!(req = req_alloc(0, KEEP_ALIVE_ACK_MESSAGE)))
03049       return -1;
03050 
03051    transmit_response(s, req);
03052    do_housekeeping(s);
03053    return 1;
03054 }
03055 
03056 static int handle_register_message(struct skinny_req *req, struct skinnysession *s)
03057 {
03058    char name[16];
03059    int res;
03060 
03061    memcpy(&name, req->data.reg.name, sizeof(name));
03062 
03063    res = skinny_register(req, s);
03064    if (!res) {
03065       ast_log(LOG_ERROR, "Rejecting Device %s: Device not found\n", name);
03066       if (!(req = req_alloc(sizeof(struct register_rej_message), REGISTER_REJ_MESSAGE)))
03067          return -1;
03068 
03069       snprintf(req->data.regrej.errMsg, sizeof(req->data.regrej.errMsg), "No Authority: %s", name);
03070       transmit_response(s, req);
03071       return 0;
03072    }
03073    ast_atomic_fetchadd_int(&unauth_sessions, -1);
03074    if (option_verbose > 2)
03075       ast_verbose(VERBOSE_PREFIX_3 "Device '%s' successfully registered\n", name);
03076 
03077    if (!(req = req_alloc(sizeof(struct register_ack_message), REGISTER_ACK_MESSAGE)))
03078       return -1;
03079 
03080    req->data.regack.res[0] = '0';
03081    req->data.regack.res[1] = '\0';
03082    req->data.regack.keepAlive = htolel(keep_alive);
03083    memcpy(req->data.regack.dateTemplate, date_format, sizeof(req->data.regack.dateTemplate));
03084    req->data.regack.res2[0] = '0';
03085    req->data.regack.res2[1] = '\0';
03086    req->data.regack.secondaryKeepAlive = htolel(keep_alive);
03087    transmit_response(s, req);
03088    if (skinnydebug)
03089       ast_verbose("Requesting capabilities\n");
03090 
03091    if (!(req = req_alloc(0, CAPABILITIES_REQ_MESSAGE)))
03092       return -1;
03093 
03094    transmit_response(s, req);
03095 
03096    return res;
03097 }
03098 
03099 static int handle_ip_port_message(struct skinny_req *req, struct skinnysession *s)
03100 {
03101    /* no response necessary */
03102    return 1;
03103 }
03104 
03105 static int handle_keypad_button_message(struct skinny_req *req, struct skinnysession *s)
03106 {
03107    struct skinny_subchannel *sub = NULL;
03108    struct skinny_line *l;
03109    struct skinny_device *d = s->device;
03110    struct ast_frame f = { 0, };
03111    char dgt;
03112    int digit;
03113    int lineInstance;
03114    int callReference;
03115 
03116    digit = letohl(req->data.keypad.button);
03117    lineInstance = letohl(req->data.keypad.lineInstance);
03118    callReference = letohl(req->data.keypad.callReference);
03119 
03120    if (digit == 14) {
03121       dgt = '*';
03122    } else if (digit == 15) {
03123       dgt = '#';
03124    } else if (digit >= 0 && digit <= 9) {
03125       dgt = '0' + digit;
03126    } else {
03127       /* digit=10-13 (A,B,C,D ?), or
03128        * digit is bad value
03129        *
03130        * probably should not end up here, but set
03131        * value for backward compatibility, and log
03132        * a warning.
03133        */
03134       dgt = '0' + digit;
03135       ast_log(LOG_WARNING, "Unsupported digit %d\n", digit);
03136    }
03137 
03138    f.subclass = dgt;
03139 
03140    f.src = "skinny";
03141 
03142    if (lineInstance && callReference)
03143       sub = find_subchannel_by_instance_reference(d, lineInstance, callReference);
03144    else
03145       sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03146 
03147    if (!sub)
03148       return 0;
03149 
03150    l = sub->parent;
03151    if (sub->owner) {
03152       if (sub->owner->_state == 0) {
03153          f.frametype = AST_FRAME_DTMF_BEGIN;
03154          ast_queue_frame(sub->owner, &f);
03155       }
03156       /* XXX MUST queue this frame to all lines in threeway call if threeway call is active */
03157       f.frametype = AST_FRAME_DTMF_END;
03158       ast_queue_frame(sub->owner, &f);
03159       /* XXX This seriously needs to be fixed */
03160       if (sub->next && sub->next->owner) {
03161          if (sub->owner->_state == 0) {
03162             f.frametype = AST_FRAME_DTMF_BEGIN;
03163             ast_queue_frame(sub->next->owner, &f);
03164          }
03165          f.frametype = AST_FRAME_DTMF_END;
03166          ast_queue_frame(sub->next->owner, &f);
03167       }
03168    } else {
03169       if (skinnydebug)
03170          ast_verbose("No owner: %s\n", l->name);
03171    }
03172    return 1;
03173 }
03174 
03175 static int handle_stimulus_message(struct skinny_req *req, struct skinnysession *s)
03176 {
03177    struct skinny_device *d = s->device;
03178    struct skinny_line *l;
03179    struct skinny_subchannel *sub;
03180    /*struct skinny_speeddial *sd;*/
03181    struct ast_channel *c;
03182    pthread_t t;
03183    int event;
03184    int instance;
03185    int callreference;
03186    /*int res = 0;*/
03187 
03188    event = letohl(req->data.stimulus.stimulus);
03189    instance = letohl(req->data.stimulus.stimulusInstance);
03190    callreference = letohl(req->data.stimulus.callreference); 
03191    if (skinnydebug)
03192       ast_verbose("callreference in handle_stimulus_message is '%d'\n", callreference);
03193 
03194    /*  Note that this call should be using the passed in instance and callreference */
03195    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03196 
03197    if (!sub) {
03198       l = find_line_by_instance(d, d->lastlineinstance);
03199       if (!l) {
03200          return 0;
03201       }
03202    } else {
03203       l = sub->parent;
03204    }
03205 
03206    switch(event) {
03207    case STIMULUS_REDIAL:
03208       if (skinnydebug)
03209          ast_verbose("Received Stimulus: Redial(%d/%d)\n", instance, callreference);
03210 
03211 #if 0
03212       if (ast_strlen_zero(l->lastnumberdialed)) {
03213          ast_log(LOG_WARNING, "Attempted redial, but no previously dialed number found.\n");
03214          l->hookstate = SKINNY_ONHOOK;
03215          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
03216          transmit_callstate(s, l->instance, SKINNY_ONHOOK, instance);
03217          break;
03218       }
03219 
03220       c = skinny_new(l, AST_STATE_DOWN);
03221       if(!c) {
03222          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03223       } else {
03224          sub = c->tech_pvt;
03225          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03226          if (skinnydebug)
03227             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03228          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03229          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03230          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
03231 
03232          if (!ast_ignore_pattern(c->context, l->lastnumberdialed)) {
03233             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03234          }
03235          ast_copy_string(c->exten, l->lastnumberdialed, sizeof(c->exten));
03236          if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
03237             ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
03238             ast_hangup(c);
03239          }
03240       }
03241 #endif
03242       break;
03243    case STIMULUS_SPEEDDIAL:
03244       if (skinnydebug)
03245          ast_verbose("Received Stimulus: SpeedDial(%d/%d)\n", instance, callreference);
03246 
03247 #if 0
03248       if (!(sd = find_speeddial_by_instance(d, instance))) {
03249          return 0;
03250       }
03251 
03252       if (ast_strlen_zero(l->lastnumberdialed)) {
03253          ast_log(LOG_WARNING, "Attempted redial, but no previously dialed number found.\n");
03254          l->hookstate = SKINNY_ONHOOK;
03255          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
03256          transmit_callstate(s, l->instance, SKINNY_ONHOOK, instance);
03257          break;
03258       }
03259 
03260       c = skinny_new(l, AST_STATE_DOWN);
03261       if(c) {
03262          sub = c->tech_pvt;
03263          l = sub->parent;
03264          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03265          if (skinnydebug)
03266             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03267          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03268          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03269          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
03270 
03271          if (!ast_ignore_pattern(c->context, sd->exten)) {
03272             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03273          }
03274          if (ast_exists_extension(c, c->context, sd->exten, 1, l->cid_num)) {
03275             if (!ast_matchmore_extension(c, c->context, sd->exten, 1, l->cid_num)) {
03276                ast_copy_string(c->exten, sd->exten, sizeof(c->exten));
03277                ast_copy_string(l->lastnumberdialed, sd->exten, sizeof(l->lastnumberdialed));
03278                skinny_newcall(c);
03279                break;
03280             }
03281          }
03282       } else {
03283          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03284       }
03285 #endif
03286       break;
03287    case STIMULUS_HOLD:
03288       if (skinnydebug)
03289          ast_verbose("Received Stimulus: Hold(%d/%d)\n", instance, callreference);
03290 
03291       if (!sub)
03292          break;
03293 
03294       if (sub->onhold) {
03295          skinny_unhold(sub);
03296       } else {
03297          skinny_hold(sub);
03298       }
03299       break;
03300    case STIMULUS_TRANSFER:
03301       if (skinnydebug)
03302          ast_verbose("Received Stimulus: Transfer(%d/%d)\n", instance, callreference);
03303       /* XXX figure out how to transfer */
03304       break;
03305    case STIMULUS_CONFERENCE:
03306       if (skinnydebug)
03307          ast_verbose("Received Stimulus: Conference(%d/%d)\n", instance, callreference);
03308       /* XXX determine the best way to pull off a conference.  Meetme? */
03309       break;
03310    case STIMULUS_VOICEMAIL:
03311       if (skinnydebug)
03312          ast_verbose("Received Stimulus: Voicemail(%d/%d)\n", instance, callreference);
03313       /* XXX Find and dial voicemail extension */
03314       break;
03315    case STIMULUS_CALLPARK:
03316       if (skinnydebug)
03317          ast_verbose("Received Stimulus: Park Call(%d/%d)\n", instance, callreference);
03318       /* XXX Park the call */
03319       break;
03320    case STIMULUS_FORWARDALL:
03321       if (skinnydebug)
03322          ast_verbose("Received Stimulus: Forward All(%d/%d)\n", instance, callreference);
03323       /* Why is DND under FORWARDALL? */
03324       /* Because it's the same thing. */
03325 
03326       /* Do not disturb */
03327       if (l->dnd != 0){
03328          if (option_verbose > 2)
03329             ast_verbose(VERBOSE_PREFIX_3 "Disabling DND on %s@%s\n", l->name, d->name);
03330          l->dnd = 0;
03331          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_ON);
03332          transmit_displaynotify(s, "DnD disabled", 10);
03333       } else {
03334          if (option_verbose > 2)
03335             ast_verbose(VERBOSE_PREFIX_3 "Enabling DND on %s@%s\n", l->name, d->name);
03336          l->dnd = 1;
03337          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_OFF);
03338          transmit_displaynotify(s, "DnD enabled", 10);
03339       }
03340       break;
03341    case STIMULUS_FORWARDBUSY:
03342       if (skinnydebug)
03343          ast_verbose("Received Stimulus: Forward Busy (%d/%d)\n", instance, callreference);
03344       break;
03345    case STIMULUS_FORWARDNOANSWER:
03346       if (skinnydebug)
03347          ast_verbose("Received Stimulus: Forward No Answer (%d/%d)\n", instance, callreference);
03348       break;
03349    case STIMULUS_DISPLAY:
03350       /* Not sure what this is */
03351       if (skinnydebug)
03352          ast_verbose("Received Stimulus: Display(%d/%d)\n", instance, callreference);
03353       break;
03354    case STIMULUS_LINE:
03355       if (skinnydebug)
03356          ast_verbose("Received Stimulus: Line(%d/%d)\n", instance, callreference);
03357 
03358       l = find_line_by_instance(s->device, instance);
03359 
03360       if (!l) {
03361          return 0;
03362       }
03363 
03364       /* turn the speaker on */
03365       transmit_speaker_mode(s, SKINNY_SPEAKERON);
03366       transmit_ringer_mode(s, SKINNY_RING_OFF);
03367       transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
03368 
03369       l->hookstate = SKINNY_OFFHOOK;
03370 
03371       if (sub && sub->outgoing) {
03372          /* We're answering a ringing call */
03373          ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
03374          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03375          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03376          transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
03377          transmit_displaypromptstatus(s, "Connected", 0, l->instance, sub->callid);
03378          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
03379          start_rtp(sub);
03380          ast_setstate(sub->owner, AST_STATE_UP);
03381       } else {
03382          if (sub && sub->owner) {
03383             ast_log(LOG_DEBUG, "Current subchannel [%s] already has owner\n", sub->owner->name);
03384          } else {
03385             c = skinny_new(l, AST_STATE_DOWN);
03386             if(c) {
03387                sub = c->tech_pvt;
03388                transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03389                if (skinnydebug)
03390                   ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03391                transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03392                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03393                transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
03394 
03395                /* start the switch thread */
03396                if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
03397                   ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
03398                   ast_hangup(c);
03399                }
03400             } else {
03401                ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03402             }
03403          }
03404       }
03405       break;
03406    default:
03407       if (skinnydebug)
03408          ast_verbose("RECEIVED UNKNOWN STIMULUS:  %d(%d/%d)\n", event, instance, callreference);
03409       break;
03410    }
03411    return 1;
03412 }
03413 
03414 static int handle_offhook_message(struct skinny_req *req, struct skinnysession *s)
03415 {
03416    struct skinny_device *d = s->device;
03417    struct skinny_line *l;
03418    struct skinny_subchannel *sub;
03419    struct ast_channel *c;
03420    pthread_t t;
03421    int unknown1;
03422    int unknown2;
03423 
03424    unknown1 = letohl(req->data.offhook.unknown1);
03425    unknown2 = letohl(req->data.offhook.unknown2);
03426 
03427    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03428 
03429    if (!sub) {
03430       l = find_line_by_instance(d, d->lastlineinstance);
03431       if (!l) {
03432          return 0;
03433       }
03434    } else {
03435       l = sub->parent;
03436    }
03437 
03438    transmit_ringer_mode(s, SKINNY_RING_OFF);
03439    l->hookstate = SKINNY_OFFHOOK;
03440 
03441    if (sub && sub->onhold) {
03442       return 1;
03443    }
03444 
03445    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
03446 
03447    if (sub && sub->outgoing) {
03448       /* We're answering a ringing call */
03449       ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
03450       transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03451       transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03452       transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
03453       transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
03454       start_rtp(sub);
03455       ast_setstate(sub->owner, AST_STATE_UP);
03456    } else {
03457       if (sub && sub->owner) {
03458          ast_log(LOG_DEBUG, "Current sub [%s] already has owner\n", sub->owner->name);
03459       } else {
03460          c = skinny_new(l, AST_STATE_DOWN);
03461          if(c) {
03462             sub = c->tech_pvt;
03463             transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03464             if (skinnydebug)
03465                ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03466             transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03467             transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03468             transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
03469 
03470             /* start the switch thread */
03471             if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
03472                ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
03473                ast_hangup(c);
03474             }
03475          } else {
03476             ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03477          }
03478       }
03479    }
03480    return 1;
03481 }
03482 
03483 static int handle_onhook_message(struct skinny_req *req, struct skinnysession *s)
03484 {
03485    struct skinny_device *d = s->device;
03486    struct skinny_line *l;
03487    struct skinny_subchannel *sub;
03488    int unknown1;
03489    int unknown2;
03490 
03491    unknown1 = letohl(req->data.onhook.unknown1);
03492    unknown2 = letohl(req->data.onhook.unknown2);
03493 
03494    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03495 
03496    if (!sub) {
03497       return 0;
03498    }
03499    l = sub->parent;
03500 
03501    if (l->hookstate == SKINNY_ONHOOK) {
03502       /* Something else already put us back on hook */
03503       return 0;
03504    }
03505    l->hookstate = SKINNY_ONHOOK;
03506 
03507    if (sub->onhold) {
03508       return 0;
03509    }
03510 
03511    sub->cxmode = SKINNY_CX_RECVONLY;
03512    transmit_callstate(s, l->instance, l->hookstate, sub->callid);
03513    if (skinnydebug)
03514       ast_verbose("Skinny %s@%s went on hook\n", l->name, d->name);
03515    if (l->transfer && (sub->owner && sub->next && sub->next->owner) && ((!sub->outgoing) || (sub->next && !sub->next->outgoing))) {
03516       /* We're allowed to transfer, we have two active calls and
03517          we made at least one of the calls.  Let's try and transfer */
03518 
03519 #if 0
03520       if ((res = attempt_transfer(p)) < 0) {
03521          if (sub->next && sub->next->owner) {
03522             sub->next->alreadygone = 1;
03523             ast_queue_hangup(sub->next->owner,1);
03524          }
03525       } else if (res) {
03526          ast_log(LOG_WARNING, "Transfer attempt failed\n");
03527          return 0;
03528       }
03529 #endif
03530    } else {
03531       /* Hangup the current call */
03532       /* If there is another active call, skinny_hangup will ring the phone with the other call */
03533       if (sub->owner) {
03534          sub->alreadygone = 1;
03535          ast_queue_hangup(sub->owner);
03536       } else {
03537          ast_log(LOG_WARNING, "Skinny(%s@%s-%d) channel already destroyed\n",
03538             l->name, d->name, sub->callid);
03539       }
03540    }
03541    if ((l->hookstate == SKINNY_ONHOOK) && (sub->next && !sub->next->rtp)) {
03542       do_housekeeping(s);
03543    }
03544    return 1;
03545 }
03546 
03547 static int handle_capabilities_res_message(struct skinny_req *req, struct skinnysession *s)
03548 {
03549    struct skinny_device *d = s->device;
03550    struct skinny_line *l;
03551    uint32_t count = 0;
03552    int codecs = 0;
03553    int i;
03554 
03555    count = letohl(req->data.caps.count);
03556    if (count > SKINNY_MAX_CAPABILITIES) {
03557       count = SKINNY_MAX_CAPABILITIES;
03558       ast_log(LOG_WARNING, "Received more capabilities than we can handle (%d).  Ignoring the rest.\n", SKINNY_MAX_CAPABILITIES);
03559    }
03560 
03561    for (i = 0; i < count; i++) {
03562       int acodec = 0;
03563       int scodec = 0;
03564       scodec = letohl(req->data.caps.caps[i].codec);
03565       acodec = codec_skinny2ast(scodec);
03566       if (skinnydebug)
03567          ast_verbose("Adding codec capability '%d (%d)'\n", acodec, scodec);
03568       codecs |= acodec;
03569    }
03570 
03571    d->capability &= codecs;
03572    ast_verbose("Device capability set to '%d'\n", d->capability);
03573    for (l = d->lines; l; l = l->next) {
03574       ast_mutex_lock(&l->lock);
03575       l->capability = d->capability;
03576       ast_mutex_unlock(&l->lock);
03577    }
03578 
03579    return 1;
03580 }
03581 
03582 static int handle_speed_dial_stat_req_message(struct skinny_req *req, struct skinnysession *s)
03583 {
03584    struct skinny_device *d = s->device;
03585    struct skinny_speeddial *sd;
03586    int instance;
03587 
03588    instance = letohl(req->data.speeddialreq.speedDialNumber);
03589 
03590    sd = find_speeddial_by_instance(d, instance);
03591 
03592    if (!sd) {
03593       return 0;
03594    }
03595 
03596    if (!(req = req_alloc(sizeof(struct speed_dial_stat_res_message), SPEED_DIAL_STAT_RES_MESSAGE)))
03597       return -1;
03598 
03599    req->data.speeddialreq.speedDialNumber = htolel(instance);
03600    ast_copy_string(req->data.speeddial.speedDialDirNumber, sd->exten, sizeof(req->data.speeddial.speedDialDirNumber));
03601    ast_copy_string(req->data.speeddial.speedDialDisplayName, sd->label, sizeof(req->data.speeddial.speedDialDisplayName));
03602 
03603    transmit_response(s, req);
03604    return 1;
03605 }
03606 
03607 static int handle_line_state_req_message(struct skinny_req *req, struct skinnysession *s)
03608 {
03609    struct skinny_device *d = s->device;
03610    struct skinny_line *l;
03611    int instance;
03612 
03613    instance = letohl(req->data.line.lineNumber);
03614 
03615    ast_mutex_lock(&devicelock);
03616 
03617    l = find_line_by_instance(d, instance);
03618 
03619    if (!l) {
03620       return 0;
03621    }
03622 
03623    ast_mutex_unlock(&devicelock);
03624 
03625    if (!(req = req_alloc(sizeof(struct line_stat_res_message), LINE_STAT_RES_MESSAGE)))
03626       return -1;
03627 
03628    req->data.linestat.lineNumber = letohl(instance);
03629    memcpy(req->data.linestat.lineDirNumber, l->name,
03630          sizeof(req->data.linestat.lineDirNumber));
03631    memcpy(req->data.linestat.lineDisplayName, l->label,
03632          sizeof(req->data.linestat.lineDisplayName));
03633    transmit_response(s,req);
03634    return 1;
03635 }
03636 
03637 static int handle_time_date_req_message(struct skinny_req *req, struct skinnysession *s)
03638 {
03639    time_t timer;
03640    struct tm *cmtime;
03641 
03642    if (!(req = req_alloc(sizeof(struct definetimedate_message), DEFINETIMEDATE_MESSAGE)))
03643       return -1;
03644 
03645    timer = time(NULL);
03646    cmtime = localtime(&timer);
03647    req->data.definetimedate.year = htolel(cmtime->tm_year+1900);
03648    req->data.definetimedate.month = htolel(cmtime->tm_mon+1);
03649    req->data.definetimedate.dayofweek = htolel(cmtime->tm_wday);
03650    req->data.definetimedate.day = htolel(cmtime->tm_mday);
03651    req->data.definetimedate.hour = htolel(cmtime->tm_hour);
03652    req->data.definetimedate.minute = htolel(cmtime->tm_min);
03653    req->data.definetimedate.seconds = htolel(cmtime->tm_sec);
03654    req->data.definetimedate.milliseconds = htolel(0);
03655    req->data.definetimedate.timestamp = htolel(timer);
03656    transmit_response(s, req);
03657    return 1;
03658 }
03659 
03660 static int handle_button_template_req_message(struct skinny_req *req, struct skinnysession *s)
03661 {
03662    struct skinny_device *d = s->device;
03663    struct skinny_line *l;
03664    int i;
03665 
03666    struct skinny_speeddial *sd;
03667    struct button_definition_template btn[42];
03668    int lineInstance = 1;
03669    int speeddialInstance = 1;
03670    int buttonCount = 0;
03671 
03672    if (!(req = req_alloc(sizeof(struct button_template_res_message), BUTTON_TEMPLATE_RES_MESSAGE)))
03673       return -1;
03674 
03675    memset(&btn, 0, sizeof(btn));
03676 
03677    get_button_template(s, btn);
03678 
03679    for (i=0; i<42; i++) {
03680       int btnSet = 0;
03681       switch (btn[i].buttonDefinition) {
03682          case BT_CUST_LINESPEEDDIAL:
03683             /* assume failure */
03684             req->data.buttontemplate.definition[i].buttonDefinition = BT_NONE;
03685             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03686 
03687             for (l = d->lines; l; l = l->next) {
03688                if (l->instance == lineInstance) {
03689                   ast_verbose("Adding button: %d, %d\n", BT_LINE, lineInstance);
03690                   req->data.buttontemplate.definition[i].buttonDefinition = BT_LINE;
03691                   req->data.buttontemplate.definition[i].instanceNumber = htolel(lineInstance);
03692                   lineInstance++;
03693                   buttonCount++;
03694                   btnSet = 1;
03695                   break;
03696                }
03697             }
03698 
03699             if (!btnSet) {
03700                for (sd = d->speeddials; sd; sd = sd->next) {
03701                   if (sd->instance == speeddialInstance) {
03702                      ast_verbose("Adding button: %d, %d\n", BT_SPEEDDIAL, speeddialInstance);
03703                      req->data.buttontemplate.definition[i].buttonDefinition = BT_SPEEDDIAL;
03704                      req->data.buttontemplate.definition[i].instanceNumber = htolel(speeddialInstance);
03705                      speeddialInstance++;
03706                      buttonCount++;
03707                      btnSet = 1;
03708                      break;
03709                   }
03710                }
03711             }
03712             break;
03713          case BT_LINE:
03714             req->data.buttontemplate.definition[i].buttonDefinition = htolel(BT_NONE);
03715             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03716 
03717             for (l = d->lines; l; l = l->next) {
03718                if (l->instance == lineInstance) {
03719                   ast_verbose("Adding button: %d, %d\n", BT_LINE, lineInstance);
03720                   req->data.buttontemplate.definition[i].buttonDefinition = BT_LINE;
03721                   req->data.buttontemplate.definition[i].instanceNumber = htolel(lineInstance);
03722                   lineInstance++;
03723                   buttonCount++;
03724                   btnSet = 1;
03725                   break;
03726                }
03727             }
03728             break;
03729          case BT_SPEEDDIAL:
03730             req->data.buttontemplate.definition[i].buttonDefinition = BT_NONE;
03731             req->data.buttontemplate.definition[i].instanceNumber = 0;
03732 
03733             for (sd = d->speeddials; sd; sd = sd->next) {
03734                if (sd->instance == speeddialInstance) {
03735                   ast_verbose("Adding button: %d, %d\n", BT_SPEEDDIAL, speeddialInstance);
03736                   req->data.buttontemplate.definition[i].buttonDefinition = BT_SPEEDDIAL;
03737                   req->data.buttontemplate.definition[i].instanceNumber = htolel(speeddialInstance);
03738                   speeddialInstance++;
03739                   buttonCount++;
03740                   btnSet = 1;
03741                   break;
03742                }
03743             }
03744             break;
03745          case BT_CUST_HINT:
03746             break;
03747          case BT_NONE:
03748             break;
03749          default:
03750             ast_verbose("Adding button: %d, %d\n", btn[i].buttonDefinition, 0);
03751             req->data.buttontemplate.definition[i].buttonDefinition = htolel(btn[i].buttonDefinition);
03752             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03753             buttonCount++;
03754             btnSet = 1;
03755             break;
03756       }
03757    }
03758 
03759    req->data.buttontemplate.buttonOffset = htolel(0);
03760    req->data.buttontemplate.buttonCount = htolel(buttonCount);
03761    req->data.buttontemplate.totalButtonCount = htolel(buttonCount);
03762 
03763    if (skinnydebug)
03764       ast_verbose("Sending %d template to %s\n",
03765                d->type,
03766                d->name);
03767    transmit_response(s, req);
03768    return 1;
03769 }
03770 
03771 static int handle_version_req_message(struct skinny_req *req, struct skinnysession *s)
03772 {
03773    struct skinny_device *d = s->device;
03774    if (!(req = req_alloc(sizeof(struct version_res_message), VERSION_RES_MESSAGE)))
03775       return -1;
03776 
03777    ast_copy_string(req->data.version.version, d->version_id, sizeof(req->data.version.version));
03778    transmit_response(s, req);
03779    return 1;
03780 }
03781 
03782 static int handle_server_request_message(struct skinny_req *req, struct skinnysession *s)
03783 {
03784    struct skinny_device *d = s->device;
03785    if (!(req = req_alloc(sizeof(struct server_res_message), SERVER_RES_MESSAGE)))
03786       return -1;
03787 
03788    memcpy(req->data.serverres.server[0].serverName, ourhost,
03789          sizeof(req->data.serverres.server[0].serverName));
03790    req->data.serverres.serverListenPort[0] = htolel(ourport);
03791    req->data.serverres.serverIpAddr[0] = htolel(d->ourip.s_addr);
03792    transmit_response(s, req);
03793    return 1;
03794 }
03795 
03796 static int handle_alarm_message(struct skinny_req *req, struct skinnysession *s)
03797 {
03798    /* no response necessary */
03799    if (skinnydebug)
03800       ast_verbose("Received Alarm Message: %s\n", req->data.alarm.displayMessage);
03801 
03802    return 1;
03803 }
03804 
03805 static int handle_open_receive_channel_ack_message(struct skinny_req *req, struct skinnysession *s)
03806 {
03807    struct skinny_device *d = s->device;
03808    struct skinny_line *l;
03809    struct skinny_subchannel *sub;
03810    struct ast_format_list fmt;
03811    struct sockaddr_in sin;
03812    struct sockaddr_in us;
03813    uint32_t addr;
03814    int port;
03815    int status;
03816    int passthruid;
03817 
03818    status = letohl(req->data.openreceivechannelack.status);
03819    if (status) {
03820       ast_log(LOG_ERROR, "Open Receive Channel Failure\n");
03821       return 0;
03822    }
03823    addr = letohl(req->data.openreceivechannelack.ipAddr);
03824    port = letohl(req->data.openreceivechannelack.port);
03825    passthruid = letohl(req->data.openreceivechannelack.passThruId);
03826 
03827    sin.sin_family = AF_INET;
03828    sin.sin_addr.s_addr = addr;
03829    sin.sin_port = htons(port);
03830 
03831    sub = find_subchannel_by_reference(d, passthruid);
03832 
03833    if (!sub)
03834       return 0;
03835 
03836    l = sub->parent;
03837 
03838    if (sub->rtp) {
03839       ast_rtp_set_peer(sub->rtp, &sin);
03840       ast_rtp_get_us(sub->rtp, &us);
03841    } else {
03842       ast_log(LOG_ERROR, "No RTP structure, this is very bad\n");
03843       return 0;
03844    }
03845 
03846    if (skinnydebug) {
03847       ast_verbose("ipaddr = %s:%d\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port));
03848       ast_verbose("ourip = %s:%d\n", ast_inet_ntoa(d->ourip), ntohs(us.sin_port));
03849    }
03850 
03851    if (!(req = req_alloc(sizeof(struct start_media_transmission_message), START_MEDIA_TRANSMISSION_MESSAGE)))
03852       return -1;
03853 
03854    fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
03855 
03856    if (skinnydebug)
03857       ast_verbose("Setting payloadType to '%d' (%d ms)\n", fmt.bits, fmt.cur_ms);
03858 
03859    req->data.startmedia.conferenceId = htolel(sub->callid);
03860    req->data.startmedia.passThruPartyId = htolel(sub->callid);
03861    req->data.startmedia.remoteIp = htolel(d->ourip.s_addr);
03862    req->data.startmedia.remotePort = htolel(ntohs(us.sin_port));
03863    req->data.startmedia.packetSize = htolel(fmt.cur_ms);
03864    req->data.startmedia.payloadType = htolel(codec_ast2skinny(fmt.bits));
03865    req->data.startmedia.qualifier.precedence = htolel(127);
03866    req->data.startmedia.qualifier.vad = htolel(0);
03867    req->data.startmedia.qualifier.packets = htolel(0);
03868    req->data.startmedia.qualifier.bitRate = htolel(0);
03869    transmit_response(s, req);
03870 
03871    return 1;
03872 }
03873 
03874 static int handle_enbloc_call_message(struct skinny_req *req, struct skinnysession *s)
03875 {
03876    struct skinny_device *d = s->device;
03877    struct skinny_line *l;
03878    struct skinny_subchannel *sub = NULL;
03879    struct ast_channel *c;
03880    pthread_t t;
03881 
03882    if (skinnydebug)
03883       ast_verbose("Received Enbloc Call: %s\n", req->data.enbloccallmessage.calledParty);
03884 
03885    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03886 
03887    if (!sub) {
03888       l = find_line_by_instance(d, d->lastlineinstance);
03889       if (!l) {
03890          return 0;
03891       }
03892    } else {
03893       l = sub->parent;
03894    }
03895 
03896    c = skinny_new(l, AST_STATE_DOWN);
03897 
03898    if(!c) {
03899       ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03900    } else {
03901       l->hookstate = SKINNY_OFFHOOK;
03902 
03903       sub = c->tech_pvt;
03904       transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03905       if (skinnydebug)
03906          ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03907       transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03908       transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03909 
03910       if (!ast_ignore_pattern(c->context, req->data.enbloccallmessage.calledParty)) {
03911          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03912       }
03913       ast_copy_string(c->exten, req->data.enbloccallmessage.calledParty, sizeof(c->exten));
03914       if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
03915          ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
03916          ast_hangup(c);
03917       }
03918    }
03919    
03920    return 1;
03921 }
03922 
03923 
03924 static int handle_soft_key_set_req_message(struct skinny_req *req, struct skinnysession *s)
03925 {
03926    int i;
03927    int x;
03928    int y;
03929    const struct soft_key_definitions *softkeymode = soft_key_default_definitions;
03930 
03931    if (!(req = req_alloc(sizeof(struct soft_key_set_res_message), SOFT_KEY_SET_RES_MESSAGE)))
03932       return -1;
03933 
03934    req->data.softkeysets.softKeySetOffset = htolel(0);
03935    req->data.softkeysets.softKeySetCount = htolel(11);
03936    req->data.softkeysets.totalSoftKeySetCount = htolel(11);
03937    for (x = 0; x < sizeof(soft_key_default_definitions) / sizeof(struct soft_key_definitions); x++) {
03938       const uint8_t *defaults = softkeymode->defaults;
03939       /* XXX I wanted to get the size of the array dynamically, but that wasn't wanting to work.
03940          This will have to do for now. */
03941       for (y = 0; y < softkeymode->count; y++) {
03942          for (i = 0; i < (sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition)); i++) {
03943             if (defaults[y] == i+1) {
03944                req->data.softkeysets.softKeySetDefinition[softkeymode->mode].softKeyTemplateIndex[y] = htolel(i+1);
03945                req->data.softkeysets.softKeySetDefinition[softkeymode->mode].softKeyInfoIndex[y] = htolel(i+301);
03946             }
03947          }
03948       }
03949       softkeymode++;
03950    }
03951    transmit_response(s,req);
03952    transmit_selectsoftkeys(s, 0, 0, KEYDEF_ONHOOK);
03953    return 1;
03954 }
03955 
03956 static int handle_soft_key_event_message(struct skinny_req *req, struct skinnysession *s)
03957 {
03958    struct skinny_device *d = s->device;
03959    struct skinny_line *l;
03960    struct skinny_subchannel *sub = NULL;
03961    struct ast_channel *c;
03962    pthread_t t;
03963    int event;
03964    int instance;
03965    int callreference;
03966 
03967    event = letohl(req->data.softkeyeventmessage.softKeyEvent);
03968    instance = letohl(req->data.softkeyeventmessage.instance);
03969    callreference = letohl(req->data.softkeyeventmessage.callreference);
03970 
03971    if (instance) {
03972       l = find_line_by_instance(d, instance);
03973       if (callreference) {
03974          sub = find_subchannel_by_instance_reference(d, instance, callreference);
03975       } else {
03976          sub = find_subchannel_by_instance_reference(d, instance, d->lastcallreference);
03977       }
03978    } else {
03979       l = find_line_by_instance(d, d->lastlineinstance);
03980    }
03981 
03982    if (!l) {
03983       if (skinnydebug)
03984          ast_verbose("Received Softkey Event: %d(%d/%d)\n", event, instance, callreference);
03985       return 0;
03986    }
03987 
03988    switch(event) {
03989    case SOFTKEY_NONE:
03990       if (skinnydebug)
03991          ast_verbose("Received Softkey Event: None(%d/%d)\n", instance, callreference);
03992       break;
03993    case SOFTKEY_REDIAL:
03994       if (skinnydebug)
03995          ast_verbose("Received Softkey Event: Redial(%d/%d)\n", instance, callreference);
03996 
03997 #if 0
03998       if (!sub || !sub->owner) {
03999          c = skinny_new(l, AST_STATE_DOWN);
04000       } else {
04001          c = sub->owner;
04002       }
04003 
04004       if(!c) {
04005          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
04006       } else {
04007          sub = c->tech_pvt;
04008          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
04009          if (skinnydebug)
04010             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
04011          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
04012          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
04013          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
04014 
04015          if (!ast_ignore_pattern(c->context, l->lastnumberdialed)) {
04016             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
04017          }
04018          ast_copy_string(c->exten, l->lastnumberdialed, sizeof(c->exten));
04019          if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
04020             ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
04021             ast_hangup(c);
04022          }
04023       }
04024 #endif
04025       break;
04026    case SOFTKEY_NEWCALL:  /* Actually the DIAL softkey */
04027       if (skinnydebug)
04028          ast_verbose("Received Softkey Event: New Call(%d/%d)\n", instance, callreference);
04029 
04030       if (!sub || !sub->owner) {
04031          c = skinny_new(l, AST_STATE_DOWN);
04032       } else {
04033          c = sub->owner;
04034       }
04035 
04036       if (!c) {
04037          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
04038       } else {
04039          sub = c->tech_pvt;
04040          if (l->hookstate == SKINNY_ONHOOK) {
04041             l->hookstate = SKINNY_OFFHOOK;
04042             transmit_speaker_mode(s, SKINNY_SPEAKERON);
04043             transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
04044          }
04045 
04046          if (skinnydebug)
04047             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
04048          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
04049          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
04050          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
04051 
04052          /* start the switch thread */
04053          if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
04054             ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
04055             ast_hangup(c);
04056          }
04057       }
04058       break;
04059    case SOFTKEY_HOLD:
04060       if (skinnydebug)
04061          ast_verbose("Received Softkey Event: Hold(%d/%d)\n", instance, callreference);
04062 
04063       if (sub) {
04064          if (sub->onhold) {
04065             skinny_unhold(sub);
04066          } else {
04067             skinny_hold(sub);
04068          }
04069       }
04070             
04071       break;
04072    case SOFTKEY_TRNSFER:
04073       if (skinnydebug)
04074          ast_verbose("Received Softkey Event: Transfer(%d/%d)\n", instance, callreference);
04075       /* XXX figure out how to transfer */
04076       break;
04077    case SOFTKEY_CFWDALL:
04078       if (skinnydebug)
04079          ast_verbose("Received Softkey Event: Forward All(%d/%d)\n", instance, callreference);
04080 
04081       /* Do not disturb */
04082       if (l->dnd != 0){
04083          if (option_verbose > 2)
04084             ast_verbose(VERBOSE_PREFIX_3 "Disabling DND on %s@%s\n", l->name, d->name);
04085          l->dnd = 0;
04086          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_ON);
04087          transmit_displaynotify(s, "DnD disabled", 10);
04088       } else {
04089          if (option_verbose > 2)
04090             ast_verbose(VERBOSE_PREFIX_3 "Enabling DND on %s@%s\n", l->name, d->name);
04091          l->dnd = 1;
04092          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_OFF);
04093          transmit_displaynotify(s, "DnD enabled", 10);
04094       }
04095       break;
04096    case SOFTKEY_CFWDBUSY:
04097       if (skinnydebug)
04098          ast_verbose("Received Softkey Event: Forward Busy (%d/%d)\n", instance, callreference);
04099       break;
04100    case SOFTKEY_CFWDNOANSWER:
04101       if (skinnydebug)
04102          ast_verbose("Received Softkey Event: Forward No Answer (%d/%d)\n", instance, callreference);
04103       break;
04104    case SOFTKEY_BKSPC:
04105       if (skinnydebug)
04106          ast_verbose("Received Softkey Event: Backspace(%d/%d)\n", instance, callreference);
04107       break;
04108    case SOFTKEY_ENDCALL:
04109       if (skinnydebug)
04110          ast_verbose("Received Softkey Event: End Call(%d/%d)\n", instance, callreference);
04111 
04112       if (l->hookstate == SKINNY_ONHOOK) {
04113          /* Something else already put us back on hook */
04114          break;
04115       }
04116       if (sub) {
04117          sub->cxmode = SKINNY_CX_RECVONLY;
04118          l->hookstate = SKINNY_ONHOOK;
04119          transmit_callstate(s, l->instance, l->hookstate, sub->callid);
04120          if (skinnydebug)
04121             ast_verbose("Skinny %s@%s went on hook\n", l->name, d->name);
04122          if (l->transfer && (sub->owner && sub->next && sub->next->owner) && ((!sub->outgoing) || (sub->next && !sub->next->outgoing))) {
04123             /* We're allowed to transfer, we have two active calls and
04124                we made at least one of the calls.  Let's try and transfer */
04125 
04126 #if 0
04127             if ((res = attempt_transfer(p)) < 0) {
04128                if (sub->next && sub->next->owner) {
04129                   sub->next->alreadygone = 1;
04130                   ast_queue_hangup(sub->next->owner, 1);
04131                }
04132             } else if (res) {
04133                ast_log(LOG_WARNING, "Transfer attempt failed\n");
04134                break;
04135             }
04136 #endif
04137          } else {
04138             /* Hangup the current call */
04139             /* If there is another active call, skinny_hangup will ring the phone with the other call */
04140             if (sub->owner) {
04141                sub->alreadygone = 1;
04142                ast_queue_hangup(sub->owner);
04143             } else {
04144                ast_log(LOG_WARNING, "Skinny(%s@%s-%d) channel already destroyed\n",
04145                   l->name, d->name, sub->callid);
04146             }
04147          }
04148          if ((l->hookstate == SKINNY_ONHOOK) && (sub->next && !sub->next->rtp)) {
04149             do_housekeeping(s);
04150          }
04151       }
04152       break;
04153    case SOFTKEY_RESUME:
04154       if (skinnydebug)
04155          ast_verbose("Received Softkey Event: Resume(%d/%d)\n", instance, callreference);
04156       break;
04157    case SOFTKEY_ANSWER:
04158       if (skinnydebug)
04159          ast_verbose("Received Softkey Event: Answer(%d/%d)\n", instance, callreference);
04160 
04161       transmit_ringer_mode(s,SKINNY_RING_OFF);
04162       transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
04163 
04164       l->hookstate = SKINNY_OFFHOOK;
04165 
04166       if (sub && sub->outgoing) {
04167          /* We're answering a ringing call */
04168          ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
04169          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
04170          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
04171          transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
04172          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
04173          start_rtp(sub);
04174          ast_setstate(sub->owner, AST_STATE_UP);
04175       }
04176       break;
04177    case SOFTKEY_INFO:
04178       if (skinnydebug)
04179          ast_verbose("Received Softkey Event: Info(%d/%d)\n", instance, callreference);
04180       break;
04181    case SOFTKEY_CONFRN:
04182       if (skinnydebug)
04183          ast_verbose("Received Softkey Event: Conference(%d/%d)\n", instance, callreference);
04184       /* XXX determine the best way to pull off a conference.  Meetme? */
04185       break;
04186    case SOFTKEY_PARK:
04187       if (skinnydebug)
04188          ast_verbose("Received Softkey Event: Park Call(%d/%d)\n", instance, callreference);
04189       /* XXX Park the call */
04190       break;
04191    case SOFTKEY_JOIN:
04192       if (skinnydebug)
04193          ast_verbose("Received Softkey Event: Join(%d/%d)\n", instance, callreference);
04194       break;
04195    case SOFTKEY_MEETME:
04196       /* XXX How is this different from CONFRN? */
04197       if (skinnydebug)
04198          ast_verbose("Received Softkey Event: Meetme(%d/%d)\n", instance, callreference);
04199       break;
04200    case SOFTKEY_PICKUP:
04201       if (skinnydebug)
04202          ast_verbose("Received Softkey Event: Pickup(%d/%d)\n", instance, callreference);
04203       break;
04204    case SOFTKEY_GPICKUP:
04205       if (skinnydebug)
04206          ast_verbose("Received Softkey Event: Group Pickup(%d/%d)\n", instance, callreference);
04207       break;
04208    default:
04209       if (skinnydebug)
04210          ast_verbose("Received unknown Softkey Event: %d(%d/%d)\n", event, instance, callreference);
04211       break;
04212    }
04213    return 1;
04214 }
04215 
04216 static int handle_unregister_message(struct skinny_req *req, struct skinnysession *s)
04217 {
04218    return skinny_unregister(req, s);
04219 }
04220 
04221 static int handle_soft_key_template_req_message(struct skinny_req *req, struct skinnysession *s)
04222 {
04223    if (!(req = req_alloc(sizeof(struct soft_key_template_res_message), SOFT_KEY_TEMPLATE_RES_MESSAGE)))
04224       return -1;
04225 
04226    req->data.softkeytemplate.softKeyOffset = htolel(0);
04227    req->data.softkeytemplate.softKeyCount = htolel(sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition));
04228    req->data.softkeytemplate.totalSoftKeyCount = htolel(sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition));
04229    memcpy(req->data.softkeytemplate.softKeyTemplateDefinition,
04230       soft_key_template_default,
04231       sizeof(soft_key_template_default));
04232    transmit_response(s,req);
04233    return 1;
04234 }
04235 
04236 static int handle_headset_status_message(struct skinny_req *req, struct skinnysession *s)
04237 {
04238    /* XXX umm...okay?  Why do I care? */
04239    return 1;
04240 }
04241 
04242 static int handle_register_available_lines_message(struct skinny_req *req, struct skinnysession *s)
04243 {
04244    /* XXX I have no clue what this is for, but my phone was sending it, so... */
04245    return 1;
04246 }
04247 
04248 static int handle_message(struct skinny_req *req, struct skinnysession *s)
04249 {
04250    int res = 0;
04251    struct skinny_device *d = s->device;
04252    struct skinny_subchannel *sub;
04253    int lineInstance;
04254    int callReference;
04255 
04256    if ((!s->device) && (letohl(req->e) != REGISTER_MESSAGE && letohl(req->e) != ALARM_MESSAGE)) {
04257       ast_log(LOG_WARNING, "Client sent message #%d without first registering.\n", req->e);
04258       free(req);
04259       return 0;
04260    }
04261 
04262    switch(letohl(req->e))  {
04263    case KEEP_ALIVE_MESSAGE:
04264       res = handle_keep_alive_message(req, s);
04265       break;
04266    case REGISTER_MESSAGE:
04267       if (skinnydebug)
04268          ast_verbose("Device %s is attempting to register\n", req->data.reg.name);
04269 
04270       res = handle_register_message(req, s);
04271       break;
04272    case IP_PORT_MESSAGE:
04273       res = handle_ip_port_message(req, s);
04274       break;
04275    case KEYPAD_BUTTON_MESSAGE:
04276       if (skinnydebug)
04277          ast_verbose("Collected digit: [%d]\n", letohl(req->data.keypad.button));
04278 
04279       lineInstance = letohl(req->data.keypad.lineInstance);
04280       callReference = letohl(req->data.keypad.callReference);
04281 
04282       sub = find_subchannel_by_instance_reference(d, lineInstance, callReference);
04283 
04284       if (sub && (sub->owner && sub->owner->_state <  AST_STATE_UP)) {
04285          char dgt;
04286          int digit = letohl(req->data.keypad.button);
04287          size_t len;
04288 
04289          if (digit == 14) {
04290             dgt = '*';
04291          } else if (digit == 15) {
04292             dgt = '#';
04293          } else if (digit >= 0 && digit <= 9) {
04294             dgt = '0' + digit;
04295          } else {
04296             /* digit=10-13 (A,B,C,D ?), or
04297             * digit is bad value
04298             *
04299             * probably should not end up here, but set
04300             * value for backward compatibility, and log
04301             * a warning.
04302             */
04303             dgt = '0' + digit;
04304             ast_log(LOG_WARNING, "Unsupported digit %d\n", digit);
04305          }
04306 
04307          len = strlen(d->exten);
04308          if (len < sizeof(d->exten) - 1) {
04309             d->exten[len] = dgt;
04310             d->exten[len+1] = '\0';
04311          } else {
04312             ast_log(LOG_WARNING, "Dropping digit with value %d because digit queue is full\n", dgt);
04313          }
04314       } else
04315          res = handle_keypad_button_message(req, s);
04316       break;
04317    case ENBLOC_CALL_MESSAGE:
04318       res = handle_enbloc_call_message(req, s);
04319       break;
04320    case STIMULUS_MESSAGE:
04321       res = handle_stimulus_message(req, s);
04322       break;
04323    case OFFHOOK_MESSAGE:
04324       res = handle_offhook_message(req, s);
04325       break;
04326    case ONHOOK_MESSAGE:
04327       res = handle_onhook_message(req, s);
04328       break;
04329    case CAPABILITIES_RES_MESSAGE:
04330       if (skinnydebug)
04331          ast_verbose("Received CapabilitiesRes\n");
04332 
04333       res = handle_capabilities_res_message(req, s);
04334       break;
04335    case SPEED_DIAL_STAT_REQ_MESSAGE:
04336       if (skinnydebug)
04337          ast_verbose("Received SpeedDialStatRequest\n");
04338 
04339       res = handle_speed_dial_stat_req_message(req, s);
04340       break;
04341    case LINE_STATE_REQ_MESSAGE:
04342       if (skinnydebug)
04343          ast_verbose("Received LineStatRequest\n");
04344       res = handle_line_state_req_message(req, s);
04345       break;
04346    case TIME_DATE_REQ_MESSAGE:
04347       if (skinnydebug)
04348          ast_verbose("Received Time/Date Request\n");
04349 
04350       res = handle_time_date_req_message(req, s);
04351       break;
04352    case BUTTON_TEMPLATE_REQ_MESSAGE:
04353       if (skinnydebug)
04354          ast_verbose("Buttontemplate requested\n");
04355 
04356       res = handle_button_template_req_message(req, s);
04357       break;
04358    case VERSION_REQ_MESSAGE:
04359       if (skinnydebug)
04360          ast_verbose("Version Request\n");
04361 
04362       res = handle_version_req_message(req, s);
04363       break;
04364    case SERVER_REQUEST_MESSAGE:
04365       if (skinnydebug)
04366          ast_verbose("Received Server Request\n");
04367 
04368       res = handle_server_request_message(req, s);
04369       break;
04370    case ALARM_MESSAGE:
04371       res = handle_alarm_message(req, s);
04372       break;
04373    case OPEN_RECEIVE_CHANNEL_ACK_MESSAGE:
04374       if (skinnydebug)
04375          ast_verbose("Received Open Receive Channel Ack\n");
04376 
04377       res = handle_open_receive_channel_ack_message(req, s);
04378       break;
04379    case SOFT_KEY_SET_REQ_MESSAGE:
04380       if (skinnydebug)
04381          ast_verbose("Received SoftKeySetReq\n");
04382 
04383       res = handle_soft_key_set_req_message(req, s);
04384       break;
04385    case SOFT_KEY_EVENT_MESSAGE:
04386       res = handle_soft_key_event_message(req, s);
04387       break;
04388    case UNREGISTER_MESSAGE:
04389       if (skinnydebug)
04390          ast_verbose("Received Unregister Request\n");
04391 
04392       res = handle_unregister_message(req, s);
04393       break;
04394    case SOFT_KEY_TEMPLATE_REQ_MESSAGE:
04395       if (skinnydebug)
04396          ast_verbose("Received SoftKey Template Request\n");
04397 
04398       res = handle_soft_key_template_req_message(req, s);
04399       break;
04400    case HEADSET_STATUS_MESSAGE:
04401       res = handle_headset_status_message(req, s);
04402       break;
04403    case REGISTER_AVAILABLE_LINES_MESSAGE:
04404       res = handle_register_available_lines_message(req, s);
04405       break;
04406    default:
04407       if (skinnydebug)
04408          ast_verbose("RECEIVED UNKNOWN MESSAGE TYPE:  %x\n", letohl(req->e));
04409       break;
04410    }
04411    if (res >= 0 && req)
04412       free(req);
04413    return res;
04414 }
04415 
04416 static void destroy_session(struct skinnysession *s)
04417 {
04418    struct skinnysession *cur, *prev = NULL;
04419    ast_mutex_lock(&sessionlock);
04420    cur = sessions;
04421    while(cur) {
04422       if (cur == s) {
04423          break;
04424       }
04425       prev = cur;
04426       cur = cur->next;
04427    }
04428    if (cur) {
04429       if (prev) {
04430          prev->next = cur->next;
04431       } else {
04432          sessions = cur->next;
04433       }
04434       if (s->fd > -1) {
04435          close(s->fd);
04436       }
04437       if (!s->device) {
04438          ast_atomic_fetchadd_int(&unauth_sessions, -1);
04439       }
04440       ast_mutex_destroy(&s->lock);
04441       free(s);
04442    } else {
04443       ast_log(LOG_WARNING, "Trying to delete nonexistent session %p?\n", s);
04444    }
04445    ast_mutex_unlock(&sessionlock);
04446 }
04447 
04448 static int get_input(struct skinnysession *s)
04449 {
04450    int res;
04451    int dlen = 0;
04452    int timeout = keep_alive * 1100;
04453    time_t now;
04454    int *bufaddr;
04455    struct pollfd fds[1];
04456 
04457    if (!s->device) {
04458       if(time(&now) == -1) {
04459          ast_log(LOG_ERROR, "error executing time(): %s\n", strerror(errno));
04460          return -1;
04461       }
04462 
04463       timeout = (auth_timeout - (now - s->start)) * 1000;
04464       if (timeout < 0) {
04465          /* we have timed out */
04466          if (skinnydebug)
04467             ast_verbose("Skinny Client failed to authenticate in %d seconds\n", auth_timeout);
04468          return -1;
04469       }
04470    }
04471 
04472    fds[0].fd = s->fd;
04473    fds[0].events = POLLIN;
04474    fds[0].revents = 0;
04475    res = ast_poll(fds, 1, timeout); /* If nothing has happen, client is dead */
04476                    /* we add 10% to the keep_alive to deal */
04477                    /* with network delays, etc */
04478    if (res < 0) {
04479       if (errno != EINTR) {
04480          ast_log(LOG_WARNING, "Select returned error: %s\n", strerror(errno));
04481          return res;
04482       }
04483    } else if (res == 0) {
04484       if (skinnydebug) {
04485          if (s->device) {
04486             ast_verbose("Skinny Client was lost, unregistering\n");
04487          } else {
04488             ast_verbose("Skinny Client failed to authenticate in %d seconds\n", auth_timeout);
04489          }
04490       }
04491       skinny_unregister(NULL, s);
04492       return -1;
04493    }
04494            
04495    if (fds[0].revents) {
04496       ast_mutex_lock(&s->lock);
04497       memset(s->inbuf,0,sizeof(s->inbuf));
04498       res = read(s->fd, s->inbuf, 4);
04499       if (res < 0) {
04500          ast_log(LOG_WARNING, "read() returned error: %s\n", strerror(errno));
04501 
04502          if (skinnydebug)
04503             ast_verbose("Skinny Client was lost, unregistering\n");
04504          
04505          skinny_unregister(NULL,s);
04506          ast_mutex_unlock(&s->lock);
04507          return res;
04508       } else if (res != 4) {
04509          ast_log(LOG_WARNING, "Skinny Client sent less data than expected.  Expected 4 but got %d.\n", res);
04510          ast_mutex_unlock(&s->lock);
04511          
04512          if (res == 0) {
04513             if (skinnydebug)
04514                ast_verbose("Skinny Client was lost, unregistering\n");
04515             skinny_unregister(NULL, s);
04516          }
04517            
04518          return -1;
04519       }
04520       
04521       bufaddr = (int *)s->inbuf;
04522       dlen = letohl(*bufaddr);
04523       if (dlen < 4) {
04524          ast_log(LOG_WARNING, "Skinny Client sent invalid data.\n");
04525          ast_mutex_unlock(&s->lock);
04526          return -1;
04527       }
04528       if (dlen+8 > sizeof(s->inbuf)) {
04529          dlen = sizeof(s->inbuf) - 8;
04530       }
04531       *bufaddr = htolel(dlen);
04532 
04533       res = read(s->fd, s->inbuf+4, dlen+4);
04534       ast_mutex_unlock(&s->lock);
04535       if (res < 0) {
04536          ast_log(LOG_WARNING, "read() returned error: %s\n", strerror(errno));
04537          return res;
04538       } else if (res != (dlen+4)) {
04539          ast_log(LOG_WARNING, "Skinny Client sent less data than expected.\n");
04540          return -1;
04541       }
04542       return res;
04543    }
04544    return 0;
04545 }
04546 
04547 static struct skinny_req *skinny_req_parse(struct skinnysession *s)
04548 {
04549    struct skinny_req *req;
04550    int *bufaddr;
04551 
04552    if (!(req = ast_calloc(1, SKINNY_MAX_PACKET)))
04553       return NULL;
04554 
04555    ast_mutex_lock(&s->lock);
04556    memcpy(req, s->inbuf, skinny_header_size);
04557    bufaddr = (int *)(s->inbuf);
04558    memcpy(&req->data, s->inbuf+skinny_header_size, letohl(*bufaddr)-4);
04559 
04560    ast_mutex_unlock(&s->lock);
04561 
04562    if (letohl(req->e) < 0) {
04563       ast_log(LOG_ERROR, "Event Message is NULL from socket %d, This is bad\n", s->fd);
04564       free(req);
04565       return NULL;
04566    }
04567 
04568    return req;
04569 }
04570 
04571 static void *skinny_session(void *data)
04572 {
04573    int res;
04574    struct skinny_req *req;
04575    struct skinnysession *s = data;
04576 
04577    if (option_verbose > 2)
04578       ast_verbose(VERBOSE_PREFIX_3 "Starting Skinny session from %s\n", ast_inet_ntoa(s->sin.sin_addr));
04579 
04580    for (;;) {
04581       res = get_input(s);
04582       if (res < 0) {
04583          break;
04584       }
04585 
04586       if (res > 0)
04587       {
04588          if (!(req = skinny_req_parse(s))) {
04589             destroy_session(s);
04590             return NULL;
04591          }
04592 
04593          res = handle_message(req, s);
04594          if (res < 0) {
04595             destroy_session(s);
04596             return NULL;
04597          }
04598       }
04599    }
04600    ast_log(LOG_NOTICE, "Skinny Session returned: %s\n", strerror(errno));
04601 
04602    if (s) 
04603       destroy_session(s);
04604    
04605    return 0;
04606 }
04607 
04608 static void *accept_thread(void *ignore)
04609 {
04610    int as;
04611    struct sockaddr_in sin;
04612    socklen_t sinlen;
04613    struct skinnysession *s;
04614    struct protoent *p;
04615    int arg = 1;
04616    pthread_attr_t attr;
04617    pthread_t tcp_thread;
04618 
04619    pthread_attr_init(&attr);
04620    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
04621 
04622    for (;;) {
04623       sinlen = sizeof(sin);
04624       as = accept(skinnysock, (struct sockaddr *)&sin, &sinlen);
04625       if (as < 0) {
04626          ast_log(LOG_NOTICE, "Accept returned -1: %s\n", strerror(errno));
04627          continue;
04628       }
04629 
04630       if (ast_atomic_fetchadd_int(&unauth_sessions, +1) >= auth_limit) {
04631          close(as);
04632          ast_atomic_fetchadd_int(&unauth_sessions, -1);
04633          continue;
04634       }
04635 
04636       p = getprotobyname("tcp");
04637       if(p) {
04638          if( setsockopt(as, p->p_proto, TCP_NODELAY, (char *)&arg, sizeof(arg) ) < 0 ) {
04639             ast_log(LOG_WARNING, "Failed to set Skinny tcp connection to TCP_NODELAY mode: %s\n", strerror(errno));
04640          }
04641       }
04642       if (!(s = ast_calloc(1, sizeof(struct skinnysession)))) {
04643          close(as);
04644          ast_atomic_fetchadd_int(&unauth_sessions, -1);
04645          continue;
04646       }
04647 
04648       memcpy(&s->sin, &sin, sizeof(sin));
04649       ast_mutex_init(&s->lock);
04650       s->fd = as;
04651 
04652       if(time(&s->start) == -1) {
04653          ast_log(LOG_ERROR, "error executing time(): %s; disconnecting client\n", strerror(errno));
04654          destroy_session(s);
04655          continue;
04656       }
04657 
04658       ast_mutex_lock(&sessionlock);
04659       s->next = sessions;
04660       sessions = s;
04661       ast_mutex_unlock(&sessionlock);
04662 
04663       if (ast_pthread_create(&tcp_thread, &attr, skinny_session, s)) {
04664          destroy_session(s);
04665       }
04666    }
04667    if (skinnydebug)
04668       ast_verbose("killing accept thread\n");
04669    close(as);
04670    pthread_attr_destroy(&attr);
04671    return 0;
04672 }
04673 
04674 static void *do_monitor(void *data)
04675 {
04676    int res;
04677 
04678    /* This thread monitors all the interfaces which are not yet in use
04679       (and thus do not have a separate thread) indefinitely */
04680    /* From here on out, we die whenever asked */
04681    for(;;) {
04682       pthread_testcancel();
04683       /* Wait for sched or io */
04684       res = ast_sched_wait(sched);
04685       if ((res < 0) || (res > 1000)) {
04686          res = 1000;
04687       }
04688       res = ast_io_wait(io, res);
04689       ast_mutex_lock(&monlock);
04690       if (res >= 0) {
04691          ast_sched_runq(sched);
04692       }
04693       ast_mutex_unlock(&monlock);
04694    }
04695    /* Never reached */
04696    return NULL;
04697 
04698 }
04699 
04700 static int restart_monitor(void)
04701 {
04702    /* If we're supposed to be stopped -- stay stopped */
04703    if (monitor_thread == AST_PTHREADT_STOP)
04704       return 0;
04705 
04706    ast_mutex_lock(&monlock);
04707    if (monitor_thread == pthread_self()) {
04708       ast_mutex_unlock(&monlock);
04709       ast_log(LOG_WARNING, "Cannot kill myself\n");
04710       return -1;
04711    }
04712    if (monitor_thread != AST_PTHREADT_NULL) {
04713       /* Wake up the thread */
04714       pthread_kill(monitor_thread, SIGURG);
04715    } else {
04716       /* Start a new monitor */
04717       if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
04718          ast_mutex_unlock(&monlock);
04719          ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
04720          return -1;
04721       }
04722    }
04723    ast_mutex_unlock(&monlock);
04724    return 0;
04725 }
04726 
04727 static struct ast_channel *skinny_request(const char *type, int format, void *data, int *cause)
04728 {
04729    int oldformat;
04730    
04731    struct skinny_line *l;
04732    struct ast_channel *tmpc = NULL;
04733    char tmp[256];
04734    char *dest = data;
04735 
04736    oldformat = format;
04737    
04738    if (!(format &= ((AST_FORMAT_MAX_AUDIO << 1) - 1))) {
04739       ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format);
04740       return NULL;   
04741    }     
04742 
04743    ast_copy_string(tmp, dest, sizeof(tmp));
04744    if (ast_strlen_zero(tmp)) {
04745       ast_log(LOG_NOTICE, "Skinny channels require a device\n");
04746       return NULL;
04747    }
04748    l = find_line_by_name(tmp);
04749    if (!l) {
04750       ast_log(LOG_NOTICE, "No available lines on: %s\n", dest);
04751       return NULL;
04752    }
04753    if (option_verbose > 2) {
04754       ast_verbose(VERBOSE_PREFIX_3 "skinny_request(%s)\n", tmp);
04755    }
04756    tmpc = skinny_new(l, AST_STATE_DOWN);
04757    if (!tmpc) {
04758       ast_log(LOG_WARNING, "Unable to make channel for '%s'\n", tmp);
04759    }
04760    restart_monitor();
04761    return tmpc;
04762 }
04763 
04764 static int reload_config(void)
04765 {
04766    int on = 1;
04767    struct ast_config *cfg;
04768    struct ast_variable *v;
04769    char *cat;
04770    struct skinny_device *d;
04771    int oldport = ntohs(bindaddr.sin_port);
04772 
04773    if (gethostname(ourhost, sizeof(ourhost))) {
04774       ast_log(LOG_WARNING, "Unable to get hostname, Skinny disabled\n");
04775       return 0;
04776    }
04777    cfg = ast_config_load(config);
04778 
04779    /* We *must* have a config file otherwise stop immediately */
04780    if (!cfg) {
04781       ast_log(LOG_NOTICE, "Unable to load config %s, Skinny disabled\n", config);
04782       return -1;
04783    }
04784    memset(&bindaddr, 0, sizeof(bindaddr));
04785    memset(&default_prefs, 0, sizeof(default_prefs));
04786 
04787    /* Copy the default jb config over global_jbconf */
04788    memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
04789 
04790    /* load the general section */
04791    v = ast_variable_browse(cfg, "general");
04792    while (v) {
04793       /* handle jb conf */
04794       if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) {
04795          v = v->next;
04796          continue;
04797       }
04798 
04799       /* Create the interface list */
04800       if (!strcasecmp(v->name, "bindaddr")) {
04801          if (!(hp = ast_gethostbyname(v->value, &ahp))) {
04802             ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
04803          } else {
04804             memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
04805          }
04806       } else if (!strcasecmp(v->name, "keepalive")) {
04807          keep_alive = atoi(v->value);
04808       } else if (!strcasecmp(v->name, "authtimeout")) {
04809          int timeout = atoi(v->value);
04810 
04811          if (timeout < 1) {
04812             ast_log(LOG_WARNING, "Invalid authtimeout value '%s', using default value\n", v->value);
04813             auth_timeout = DEFAULT_AUTH_TIMEOUT;
04814          } else {
04815             auth_timeout = timeout;
04816          }
04817       } else if (!strcasecmp(v->name, "authlimit")) {
04818          int limit = atoi(v->value);
04819 
04820          if (limit < 1) {
04821             ast_log(LOG_WARNING, "Invalid authlimit value '%s', using default value\n", v->value);
04822             auth_limit = DEFAULT_AUTH_LIMIT;
04823          } else {
04824             auth_limit = limit;
04825          }
04826       } else if (!strcasecmp(v->name, "dateformat")) {
04827          memcpy(date_format, v->value, sizeof(date_format));
04828       } else if (!strcasecmp(v->name, "allow")) {
04829          ast_parse_allow_disallow(&default_prefs, &default_capability, v->value, 1);
04830       } else if (!strcasecmp(v->name, "disallow")) {
04831          ast_parse_allow_disallow(&default_prefs, &default_capability, v->value, 0);
04832       } else if (!strcasecmp(v->name, "bindport") || !strcasecmp(v->name, "port")) {
04833          if (sscanf(v->value, "%5d", &ourport) == 1) {
04834             bindaddr.sin_port = htons(ourport);
04835          } else {
04836             ast_log(LOG_WARNING, "Invalid bindport '%s' at line %d of %s\n", v->value, v->lineno, config);
04837          }
04838          if (!strcasecmp(v->name, "port")) { /*! \todo Remove 'port' option after 1.4 */
04839             ast_log(LOG_WARNING, "Option 'port' at line %d of %s has been deprecated.  Please use 'bindport' instead.\n", v->lineno, config);
04840          }
04841       }
04842       v = v->next;
04843    }
04844 
04845    if (ntohl(bindaddr.sin_addr.s_addr)) {
04846       __ourip = bindaddr.sin_addr;
04847    } else {
04848       hp = ast_gethostbyname(ourhost, &ahp);
04849       if (!hp) {
04850          ast_log(LOG_WARNING, "Unable to get our IP address, Skinny disabled\n");
04851          ast_config_destroy(cfg);
04852          return 0;
04853       }
04854       memcpy(&__ourip, hp->h_addr, sizeof(__ourip));
04855    }
04856    if (!ntohs(bindaddr.sin_port)) {
04857       bindaddr.sin_port = ntohs(DEFAULT_SKINNY_PORT);
04858    }
04859    bindaddr.sin_family = AF_INET;
04860 
04861    /* load the device sections */
04862    cat = ast_category_browse(cfg, NULL);
04863    while(cat) {
04864       if (!strcasecmp(cat, "general")) {
04865          /* Nothing to do */
04866 #if 0
04867       } else if (!strncasecmp(cat, "paging-", 7)) {
04868          p = build_paging_device(cat, ast_variable_browse(cfg, cat));
04869          if (p) {
04870          }
04871 #endif
04872       } else {
04873          d = build_device(cat, ast_variable_browse(cfg, cat));
04874          if (d) {
04875             if (option_verbose > 2)
04876                ast_verbose(VERBOSE_PREFIX_3 "Added device '%s'\n", d->name);
04877             ast_mutex_lock(&devicelock);
04878             d->next = devices;
04879             devices = d;
04880             ast_mutex_unlock(&devicelock);
04881          }
04882       }
04883       cat = ast_category_browse(cfg, cat);
04884    }
04885    ast_mutex_lock(&netlock);
04886    if ((skinnysock > -1) && (ntohs(bindaddr.sin_port) != oldport)) {
04887       close(skinnysock);
04888       skinnysock = -1;
04889    }
04890    if (skinnysock < 0) {
04891       skinnysock = socket(AF_INET, SOCK_STREAM, 0);
04892       if(setsockopt(skinnysock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) {
04893          ast_log(LOG_ERROR, "Set Socket Options failed: errno %d, %s\n", errno, strerror(errno));
04894          ast_config_destroy(cfg);
04895          ast_mutex_unlock(&netlock);
04896          return 0;
04897       }
04898       if (skinnysock < 0) {
04899          ast_log(LOG_WARNING, "Unable to create Skinny socket: %s\n", strerror(errno));
04900       } else {
04901          if (bind(skinnysock, (struct sockaddr *)&bindaddr, sizeof(bindaddr)) < 0) {
04902             ast_log(LOG_WARNING, "Failed to bind to %s:%d: %s\n",
04903                   ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port),
04904                      strerror(errno));
04905             close(skinnysock);
04906             skinnysock = -1;
04907             ast_config_destroy(cfg);
04908             ast_mutex_unlock(&netlock);
04909             return 0;
04910          }
04911          if (listen(skinnysock,DEFAULT_SKINNY_BACKLOG)) {
04912                ast_log(LOG_WARNING, "Failed to start listening to %s:%d: %s\n",
04913                   ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port),
04914                      strerror(errno));
04915                close(skinnysock);
04916                skinnysock = -1;
04917                ast_config_destroy(cfg);
04918                ast_mutex_unlock(&netlock);
04919                return 0;
04920          }
04921          if (option_verbose > 1)
04922             ast_verbose(VERBOSE_PREFIX_2 "Skinny listening on %s:%d\n",
04923                ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port));
04924          ast_pthread_create_background(&accept_t,NULL, accept_thread, NULL);
04925       }
04926    }
04927    ast_mutex_unlock(&netlock);
04928    ast_config_destroy(cfg);
04929    return 1;
04930 }
04931 
04932 static void delete_devices(void)
04933 {
04934    struct skinny_device *d, *dlast;
04935    struct skinny_line *l, *llast;
04936    struct skinny_speeddial *sd, *sdlast;
04937    struct skinny_addon *a, *alast;
04938 
04939    ast_mutex_lock(&devicelock);
04940 
04941    /* Delete all devices */
04942    for (d=devices;d;) {
04943       /* Delete all lines for this device */
04944       for (l=d->lines;l;) {
04945          llast = l;
04946          l = l->next;
04947          ast_mutex_destroy(&llast->lock);
04948          free(llast);
04949       }
04950       /* Delete all speeddials for this device */
04951       for (sd=d->speeddials;sd;) {
04952          sdlast = sd;
04953          sd = sd->next;
04954          ast_mutex_destroy(&sdlast->lock);
04955          free(sdlast);
04956       }
04957       /* Delete all addons for this device */
04958       for (a=d->addons;a;) {
04959          alast = a;
04960          a = a->next;
04961          ast_mutex_destroy(&alast->lock);
04962          free(alast);
04963       }
04964       dlast = d;
04965       d = d->next;
04966       free(dlast);
04967    }
04968    devices=NULL;
04969    ast_mutex_unlock(&devicelock);
04970 }
04971 
04972 #if 0
04973 /*
04974  * XXX This never worked properly anyways.
04975  * Let's get rid of it, until we can fix it.
04976  */
04977 static int reload(void)
04978 {
04979    delete_devices();
04980    reload_config();
04981    restart_monitor();
04982    return 0;
04983 }
04984 #endif
04985 
04986 static int load_module(void)
04987 {
04988    int res = 0;
04989 
04990    for (; res < (sizeof(soft_key_template_default) / sizeof(soft_key_template_default[0])); res++) {
04991       soft_key_template_default[res].softKeyEvent = htolel(soft_key_template_default[res].softKeyEvent);
04992    }
04993    /* load and parse config */
04994    res = reload_config();
04995    if (res == -1) {
04996       return AST_MODULE_LOAD_DECLINE;
04997    }
04998 
04999    /* Make sure we can register our skinny channel type */
05000    if (ast_channel_register(&skinny_tech)) {
05001       ast_log(LOG_ERROR, "Unable to register channel class 'Skinny'\n");
05002       return -1;
05003    }
05004 
05005    ast_rtp_proto_register(&skinny_rtp);
05006    ast_cli_register_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
05007    sched = sched_context_create();
05008    if (!sched) {
05009       ast_log(LOG_WARNING, "Unable to create schedule context\n");
05010    }
05011    io = io_context_create();
05012    if (!io) {
05013       ast_log(LOG_WARNING, "Unable to create I/O context\n");
05014    }
05015    /* And start the monitor for the first time */
05016    restart_monitor();
05017 
05018    return res;
05019 }
05020 
05021 static int unload_module(void)
05022 {
05023    struct skinnysession *s, *slast;
05024    struct skinny_device *d;
05025    struct skinny_line *l;
05026    struct skinny_subchannel *sub;
05027 
05028    ast_mutex_lock(&sessionlock);
05029    /* Destroy all the interfaces and free their memory */
05030    s = sessions;
05031    while(s) {
05032       slast = s;
05033       s = s->next;
05034       for (d = slast->device; d; d = d->next) {
05035          for (l = d->lines; l; l = l->next) {
05036             ast_mutex_lock(&l->lock);
05037             for (sub = l->sub; sub; sub = sub->next) {
05038                ast_mutex_lock(&sub->lock);
05039                if (sub->owner) {
05040                   sub->alreadygone = 1;
05041                   ast_softhangup(sub->owner, AST_SOFTHANGUP_APPUNLOAD);
05042                }
05043                ast_mutex_unlock(&sub->lock);
05044             }
05045             ast_mutex_unlock(&l->lock);
05046          }
05047       }
05048       if (slast->fd > -1)
05049          close(slast->fd);
05050       ast_mutex_destroy(&slast->lock);
05051       free(slast);
05052    }
05053    sessions = NULL;
05054    ast_mutex_unlock(&sessionlock);
05055 
05056    delete_devices();
05057 
05058    ast_mutex_lock(&monlock);
05059    if ((monitor_thread != AST_PTHREADT_NULL) && (monitor_thread != AST_PTHREADT_STOP)) {
05060       pthread_cancel(monitor_thread);
05061       pthread_kill(monitor_thread, SIGURG);
05062       pthread_join(monitor_thread, NULL);
05063    }
05064    monitor_thread = AST_PTHREADT_STOP;
05065    ast_mutex_unlock(&monlock);
05066 
05067    ast_mutex_lock(&netlock);
05068    if (accept_t && (accept_t != AST_PTHREADT_STOP)) {
05069       pthread_cancel(accept_t);
05070       pthread_kill(accept_t, SIGURG);
05071       pthread_join(accept_t, NULL);
05072    }
05073    accept_t = AST_PTHREADT_STOP;
05074    ast_mutex_unlock(&netlock);
05075 
05076    ast_rtp_proto_unregister(&skinny_rtp);
05077    ast_channel_unregister(&skinny_tech);
05078    ast_cli_unregister_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
05079 
05080    close(skinnysock);
05081    if (sched)
05082       sched_context_destroy(sched);
05083 
05084    return 0;
05085 }
05086 
05087 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Skinny Client Control Protocol (Skinny)",
05088       .load = load_module,
05089       .unload = unload_module,
05090           );

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