Thu Oct 8 21:57:23 2009

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: 116799 $")
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 
00100 static int keep_alive = 120;
00101 static char date_format[6] = "D-M-Y";
00102 static char version_id[16] = "P002F202";
00103 
00104 #if __BYTE_ORDER == __LITTLE_ENDIAN
00105 #define letohl(x) (x)
00106 #define letohs(x) (x)
00107 #define htolel(x) (x)
00108 #define htoles(x) (x)
00109 #else
00110 #if defined(SOLARIS) || defined(__Darwin__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__)
00111 #define __bswap_16(x) \
00112    ((((x) & 0xff00) >> 8) | \
00113     (((x) & 0x00ff) << 8))
00114 #define __bswap_32(x) \
00115    ((((x) & 0xff000000) >> 24) | \
00116     (((x) & 0x00ff0000) >>  8) | \
00117     (((x) & 0x0000ff00) <<  8) | \
00118     (((x) & 0x000000ff) << 24))
00119 #else
00120 #include <bits/byteswap.h>
00121 #endif
00122 #define letohl(x) __bswap_32(x)
00123 #define letohs(x) __bswap_16(x)
00124 #define htolel(x) __bswap_32(x)
00125 #define htoles(x) __bswap_16(x)
00126 #endif
00127 
00128 /*! Global jitterbuffer configuration - by default, jb is disabled */
00129 static struct ast_jb_conf default_jbconf =
00130 {
00131    .flags = 0,
00132    .max_size = -1,
00133    .resync_threshold = -1,
00134    .impl = ""
00135 };
00136 static struct ast_jb_conf global_jbconf;
00137 
00138 AST_THREADSTORAGE(device2str_threadbuf, device2str_threadbuf_init);
00139 #define DEVICE2STR_BUFSIZE   15
00140 
00141 AST_THREADSTORAGE(control2str_threadbuf, control2str_threadbuf_init);
00142 #define CONTROL2STR_BUFSIZE   100
00143 
00144 /*********************
00145  * Protocol Messages *
00146  *********************/
00147 /* message types */
00148 #define KEEP_ALIVE_MESSAGE 0x0000
00149 /* no additional struct */
00150 
00151 #define REGISTER_MESSAGE 0x0001
00152 struct register_message {
00153    char name[16];
00154    uint32_t userId;
00155    uint32_t instance;
00156    uint32_t ip;
00157    uint32_t type;
00158    uint32_t maxStreams;
00159 };
00160 
00161 #define IP_PORT_MESSAGE 0x0002
00162 
00163 #define KEYPAD_BUTTON_MESSAGE 0x0003
00164 struct keypad_button_message {
00165    uint32_t button;
00166    uint32_t lineInstance;
00167    uint32_t callReference;
00168 };
00169 
00170 
00171 #define ENBLOC_CALL_MESSAGE 0x0004
00172 struct enbloc_call_message {
00173        char calledParty[24];
00174 };
00175 
00176 #define STIMULUS_MESSAGE 0x0005
00177 struct stimulus_message {
00178    uint32_t stimulus;
00179    uint32_t stimulusInstance;
00180    uint32_t callreference;
00181 };
00182 
00183 #define OFFHOOK_MESSAGE 0x0006
00184 struct offhook_message {
00185    uint32_t unknown1;
00186    uint32_t unknown2;
00187 };
00188 
00189 #define ONHOOK_MESSAGE 0x0007
00190 struct onhook_message {
00191    uint32_t unknown1;
00192    uint32_t unknown2;
00193 };
00194 
00195 #define CAPABILITIES_RES_MESSAGE 0x0010
00196 struct station_capabilities {
00197    uint32_t codec;
00198    uint32_t frames;
00199    union {
00200       char res[8];
00201       uint32_t rate;
00202    } payloads;
00203 };
00204 
00205 #define SKINNY_MAX_CAPABILITIES 18
00206 
00207 struct capabilities_res_message {
00208    uint32_t count;
00209    struct station_capabilities caps[SKINNY_MAX_CAPABILITIES];
00210 };
00211 
00212 #define SPEED_DIAL_STAT_REQ_MESSAGE 0x000A
00213 struct speed_dial_stat_req_message {
00214    uint32_t speedDialNumber;
00215 };
00216 
00217 #define LINE_STATE_REQ_MESSAGE 0x000B
00218 struct line_state_req_message {
00219    uint32_t lineNumber;
00220 };
00221 
00222 #define TIME_DATE_REQ_MESSAGE 0x000D
00223 #define BUTTON_TEMPLATE_REQ_MESSAGE 0x000E
00224 #define VERSION_REQ_MESSAGE 0x000F
00225 #define SERVER_REQUEST_MESSAGE 0x0012
00226 
00227 #define ALARM_MESSAGE 0x0020
00228 struct alarm_message {
00229    uint32_t alarmSeverity;
00230    char displayMessage[80];
00231    uint32_t alarmParam1;
00232    uint32_t alarmParam2;
00233 };
00234 
00235 #define OPEN_RECEIVE_CHANNEL_ACK_MESSAGE 0x0022
00236 struct open_receive_channel_ack_message {
00237    uint32_t status;
00238    uint32_t ipAddr;
00239    uint32_t port;
00240    uint32_t passThruId;
00241 };
00242 
00243 #define SOFT_KEY_SET_REQ_MESSAGE 0x0025
00244 
00245 #define SOFT_KEY_EVENT_MESSAGE 0x0026
00246 struct soft_key_event_message {
00247    uint32_t softKeyEvent;
00248    uint32_t instance;
00249    uint32_t callreference;
00250 };
00251 
00252 #define UNREGISTER_MESSAGE 0x0027
00253 #define SOFT_KEY_TEMPLATE_REQ_MESSAGE 0x0028
00254 #define HEADSET_STATUS_MESSAGE 0x002B
00255 #define REGISTER_AVAILABLE_LINES_MESSAGE 0x002D
00256 
00257 #define REGISTER_ACK_MESSAGE 0x0081
00258 struct register_ack_message {
00259    uint32_t keepAlive;
00260    char dateTemplate[6];
00261    char res[2];
00262    uint32_t secondaryKeepAlive;
00263    char res2[4];
00264 };
00265 
00266 #define START_TONE_MESSAGE 0x0082
00267 struct start_tone_message {
00268    uint32_t tone;
00269    uint32_t space;
00270    uint32_t instance;
00271    uint32_t reference;
00272 };
00273 
00274 #define STOP_TONE_MESSAGE 0x0083
00275 struct stop_tone_message {
00276    uint32_t instance;
00277    uint32_t reference;
00278 };
00279 
00280 #define SET_RINGER_MESSAGE 0x0085
00281 struct set_ringer_message {
00282    uint32_t ringerMode;
00283    uint32_t unknown1; /* See notes in transmit_ringer_mode */
00284    uint32_t unknown2;
00285    uint32_t space[2];
00286 };
00287 
00288 #define SET_LAMP_MESSAGE 0x0086
00289 struct set_lamp_message {
00290    uint32_t stimulus;
00291    uint32_t stimulusInstance;
00292    uint32_t deviceStimulus;
00293 };
00294 
00295 #define SET_SPEAKER_MESSAGE 0x0088
00296 struct set_speaker_message {
00297    uint32_t mode;
00298 };
00299 
00300 /* XXX When do we need to use this? */
00301 #define SET_MICROPHONE_MESSAGE 0x0089
00302 struct set_microphone_message {
00303    uint32_t mode;
00304 };
00305 
00306 #define START_MEDIA_TRANSMISSION_MESSAGE 0x008A
00307 struct media_qualifier {
00308    uint32_t precedence;
00309    uint32_t vad;
00310    uint16_t packets;
00311    uint32_t bitRate;
00312 };
00313 
00314 struct start_media_transmission_message {
00315    uint32_t conferenceId;
00316    uint32_t passThruPartyId;
00317    uint32_t remoteIp;
00318    uint32_t remotePort;
00319    uint32_t packetSize;
00320    uint32_t payloadType;
00321    struct media_qualifier qualifier;
00322    uint32_t space[16];
00323 };
00324 
00325 #define STOP_MEDIA_TRANSMISSION_MESSAGE 0x008B
00326 struct stop_media_transmission_message {
00327    uint32_t conferenceId;
00328    uint32_t passThruPartyId;
00329    uint32_t space[3];
00330 };
00331 
00332 #define CALL_INFO_MESSAGE 0x008F
00333 struct call_info_message {
00334    char callingPartyName[40];
00335    char callingParty[24];
00336    char calledPartyName[40];
00337    char calledParty[24];
00338    uint32_t instance;
00339    uint32_t reference;
00340    uint32_t type;
00341    char originalCalledPartyName[40];
00342    char originalCalledParty[24];
00343    char lastRedirectingPartyName[40];
00344    char lastRedirectingParty[24];
00345    uint32_t originalCalledPartyRedirectReason;
00346    uint32_t lastRedirectingReason;
00347    char callingPartyVoiceMailbox[24];
00348    char calledPartyVoiceMailbox[24];
00349    char originalCalledPartyVoiceMailbox[24];
00350    char lastRedirectingVoiceMailbox[24];
00351    uint32_t space[3];
00352 };
00353 
00354 #define SPEED_DIAL_STAT_RES_MESSAGE 0x0091
00355 struct speed_dial_stat_res_message {
00356    uint32_t speedDialNumber;
00357    char speedDialDirNumber[24];
00358    char speedDialDisplayName[40];
00359 };
00360 
00361 #define LINE_STAT_RES_MESSAGE 0x0092
00362 struct line_stat_res_message {
00363    uint32_t lineNumber;
00364    char lineDirNumber[24];
00365    char lineDisplayName[24];
00366    uint32_t space[15];
00367 };
00368 
00369 #define DEFINETIMEDATE_MESSAGE 0x0094
00370 struct definetimedate_message {
00371    uint32_t year; /* since 1900 */
00372    uint32_t month;
00373    uint32_t dayofweek;  /* monday = 1 */
00374    uint32_t day;
00375    uint32_t hour;
00376    uint32_t minute;
00377    uint32_t seconds;
00378    uint32_t milliseconds;
00379    uint32_t timestamp;
00380 };
00381 
00382 #define BUTTON_TEMPLATE_RES_MESSAGE 0x0097
00383 struct button_definition {
00384    uint8_t instanceNumber;
00385    uint8_t buttonDefinition;
00386 };
00387 
00388 struct button_definition_template {
00389    uint8_t buttonDefinition;
00390    /* for now, anything between 0xB0 and 0xCF is custom */
00391    /*int custom;*/
00392 };
00393 
00394 #define STIMULUS_REDIAL       0x01
00395 #define STIMULUS_SPEEDDIAL    0x02
00396 #define STIMULUS_HOLD         0x03
00397 #define STIMULUS_TRANSFER     0x04
00398 #define STIMULUS_FORWARDALL      0x05
00399 #define STIMULUS_FORWARDBUSY     0x06
00400 #define STIMULUS_FORWARDNOANSWER 0x07
00401 #define STIMULUS_DISPLAY      0x08
00402 #define STIMULUS_LINE         0x09
00403 #define STIMULUS_VOICEMAIL    0x0F
00404 #define STIMULUS_AUTOANSWER      0x11
00405 #define STIMULUS_CONFERENCE      0x7D
00406 #define STIMULUS_CALLPARK     0x7E
00407 #define STIMULUS_CALLPICKUP      0x7F
00408 #define STIMULUS_NONE         0xFF
00409 
00410 /* Button types */
00411 #define BT_REDIAL       STIMULUS_REDIAL
00412 #define BT_SPEEDDIAL       STIMULUS_SPEEDDIAL
00413 #define BT_HOLD            STIMULUS_HOLD
00414 #define BT_TRANSFER        STIMULUS_TRANSFER
00415 #define BT_FORWARDALL         STIMULUS_FORWARDALL
00416 #define BT_FORWARDBUSY        STIMULUS_FORWARDBUSY
00417 #define BT_FORWARDNOANSWER    STIMULUS_FORWARDNOANSWER
00418 #define BT_DISPLAY         STIMULUS_DISPLAY
00419 #define BT_LINE            STIMULUS_LINE
00420 #define BT_VOICEMAIL       STIMULUS_VOICEMAIL
00421 #define BT_AUTOANSWER         STIMULUS_AUTOANSWER
00422 #define BT_CONFERENCE         STIMULUS_CONFERENCE
00423 #define BT_CALLPARK        STIMULUS_CALLPARK
00424 #define BT_CALLPICKUP         STIMULUS_CALLPICKUP
00425 #define BT_NONE            0x00
00426 
00427 /* Custom button types - add our own between 0xB0 and 0xCF.
00428    This may need to be revised in the future,
00429    if stimuluses are ever added in this range. */
00430 #define BT_CUST_LINESPEEDDIAL    0xB0  /* line or speeddial */
00431 #define BT_CUST_HINT       0xB1  /* pipe dream */
00432 
00433 struct button_template_res_message {
00434    uint32_t buttonOffset;
00435    uint32_t buttonCount;
00436    uint32_t totalButtonCount;
00437    struct button_definition definition[42];
00438 };
00439 
00440 #define VERSION_RES_MESSAGE 0x0098
00441 struct version_res_message {
00442    char version[16];
00443 };
00444 
00445 #define DISPLAYTEXT_MESSAGE 0x0099
00446 struct displaytext_message {
00447    char text[40];
00448 };
00449 
00450 #define CLEAR_NOTIFY_MESSAGE  0x0115
00451 #define CLEAR_DISPLAY_MESSAGE 0x009A
00452 
00453 #define CAPABILITIES_REQ_MESSAGE 0x009B
00454 
00455 #define REGISTER_REJ_MESSAGE 0x009D
00456 struct register_rej_message {
00457    char errMsg[33];
00458 };
00459 
00460 #define SERVER_RES_MESSAGE 0x009E
00461 struct server_identifier {
00462    char serverName[48];
00463 };
00464 
00465 struct server_res_message {
00466    struct server_identifier server[5];
00467    uint32_t serverListenPort[5];
00468    uint32_t serverIpAddr[5];
00469 };
00470 
00471 #define RESET_MESSAGE 0x009F
00472 struct reset_message {
00473    uint32_t resetType;
00474 };
00475 
00476 #define KEEP_ALIVE_ACK_MESSAGE 0x0100
00477 
00478 #define OPEN_RECEIVE_CHANNEL_MESSAGE 0x0105
00479 struct open_receive_channel_message {
00480    uint32_t conferenceId;
00481    uint32_t partyId;
00482    uint32_t packets;
00483    uint32_t capability;
00484    uint32_t echo;
00485    uint32_t bitrate;
00486    uint32_t space[16];
00487 };
00488 
00489 #define CLOSE_RECEIVE_CHANNEL_MESSAGE 0x0106
00490 struct close_receive_channel_message {
00491    uint32_t conferenceId;
00492    uint32_t partyId;
00493    uint32_t space[2];
00494 };
00495 
00496 #define SOFT_KEY_TEMPLATE_RES_MESSAGE 0x0108
00497 
00498 struct soft_key_template_definition {
00499    char softKeyLabel[16];
00500    uint32_t softKeyEvent;
00501 };
00502 
00503 #define KEYDEF_ONHOOK         0
00504 #define KEYDEF_CONNECTED      1
00505 #define KEYDEF_ONHOLD         2
00506 #define KEYDEF_RINGIN         3
00507 #define KEYDEF_OFFHOOK        4
00508 #define KEYDEF_CONNWITHTRANS     5
00509 #define KEYDEF_DADFD       6 /* Digits After Dialing First Digit */
00510 #define KEYDEF_CONNWITHCONF      7
00511 #define KEYDEF_RINGOUT        8
00512 #define KEYDEF_OFFHOOKWITHFEAT      9
00513 #define KEYDEF_UNKNOWN        10
00514 
00515 #define SOFTKEY_NONE       0x00
00516 #define SOFTKEY_REDIAL        0x01
00517 #define SOFTKEY_NEWCALL       0x02
00518 #define SOFTKEY_HOLD       0x03
00519 #define SOFTKEY_TRNSFER       0x04
00520 #define SOFTKEY_CFWDALL       0x05
00521 #define SOFTKEY_CFWDBUSY      0x06
00522 #define SOFTKEY_CFWDNOANSWER     0x07
00523 #define SOFTKEY_BKSPC         0x08
00524 #define SOFTKEY_ENDCALL       0x09
00525 #define SOFTKEY_RESUME        0x0A
00526 #define SOFTKEY_ANSWER        0x0B
00527 #define SOFTKEY_INFO       0x0C
00528 #define SOFTKEY_CONFRN        0x0D
00529 #define SOFTKEY_PARK       0x0E
00530 #define SOFTKEY_JOIN       0x0F
00531 #define SOFTKEY_MEETME        0x10
00532 #define SOFTKEY_PICKUP        0x11
00533 #define SOFTKEY_GPICKUP       0x12
00534 
00535 struct soft_key_template_definition soft_key_template_default[] = {
00536    { "Redial",    0x01 },
00537    { "NewCall",      0x02 },
00538    { "Hold",      0x03 },
00539    { "Trnsfer",      0x04 },
00540    { "CFwdAll",      0x05 },
00541    { "CFwdBusy",     0x06 },
00542    { "CFwdNoAnswer", 0x07 },
00543    { "<<",        0x08 },
00544    { "EndCall",      0x09 },
00545    { "Resume",    0x0A },
00546    { "Answer",    0x0B },
00547    { "Info",      0x0C },
00548    { "Confrn",    0x0D },
00549    { "Park",      0x0E },
00550    { "Join",      0x0F },
00551    { "MeetMe",    0x10 },
00552    { "PickUp",    0x11 },
00553    { "GPickUp",      0x12 },
00554 };
00555 
00556 struct soft_key_definitions {
00557    const uint8_t mode;
00558    const uint8_t *defaults;
00559    const int count;
00560 };
00561 
00562 static const uint8_t soft_key_default_onhook[] = {
00563    SOFTKEY_REDIAL,
00564    SOFTKEY_NEWCALL,
00565    SOFTKEY_CFWDALL,
00566    SOFTKEY_CFWDBUSY,
00567    /*SOFTKEY_GPICKUP,
00568    SOFTKEY_CONFRN,*/
00569 };
00570 
00571 static const uint8_t soft_key_default_connected[] = {
00572    SOFTKEY_HOLD,
00573    SOFTKEY_ENDCALL,
00574    SOFTKEY_TRNSFER,
00575    SOFTKEY_PARK,
00576    SOFTKEY_CFWDALL,
00577    SOFTKEY_CFWDBUSY,
00578 };
00579 
00580 static const uint8_t soft_key_default_onhold[] = {
00581    SOFTKEY_RESUME,
00582    SOFTKEY_NEWCALL,
00583    SOFTKEY_ENDCALL,
00584    SOFTKEY_TRNSFER,
00585 };
00586 
00587 static const uint8_t soft_key_default_ringin[] = {
00588    SOFTKEY_ANSWER,
00589    SOFTKEY_ENDCALL,
00590    SOFTKEY_TRNSFER,
00591 };
00592 
00593 static const uint8_t soft_key_default_offhook[] = {
00594    SOFTKEY_REDIAL,
00595    SOFTKEY_ENDCALL,
00596    SOFTKEY_CFWDALL,
00597    SOFTKEY_CFWDBUSY,
00598    /*SOFTKEY_GPICKUP,*/
00599 };
00600 
00601 static const uint8_t soft_key_default_connwithtrans[] = {
00602    SOFTKEY_HOLD,
00603    SOFTKEY_ENDCALL,
00604    SOFTKEY_TRNSFER,
00605    SOFTKEY_PARK,
00606    SOFTKEY_CFWDALL,
00607    SOFTKEY_CFWDBUSY,
00608 };
00609 
00610 static const uint8_t soft_key_default_dadfd[] = {
00611    SOFTKEY_BKSPC,
00612    SOFTKEY_ENDCALL,
00613 };
00614 
00615 static const uint8_t soft_key_default_connwithconf[] = {
00616    SOFTKEY_NONE,
00617 };
00618 
00619 static const uint8_t soft_key_default_ringout[] = {
00620    SOFTKEY_NONE,
00621    SOFTKEY_ENDCALL,
00622 };
00623 
00624 static const uint8_t soft_key_default_offhookwithfeat[] = {
00625    SOFTKEY_REDIAL,
00626    SOFTKEY_ENDCALL,
00627 };
00628 
00629 static const uint8_t soft_key_default_unknown[] = {
00630    SOFTKEY_NONE,
00631 };
00632 
00633 static const struct soft_key_definitions soft_key_default_definitions[] = {
00634    {KEYDEF_ONHOOK, soft_key_default_onhook, sizeof(soft_key_default_onhook) / sizeof(uint8_t)},
00635    {KEYDEF_CONNECTED, soft_key_default_connected, sizeof(soft_key_default_connected) / sizeof(uint8_t)},
00636    {KEYDEF_ONHOLD, soft_key_default_onhold, sizeof(soft_key_default_onhold) / sizeof(uint8_t)},
00637    {KEYDEF_RINGIN, soft_key_default_ringin, sizeof(soft_key_default_ringin) / sizeof(uint8_t)},
00638    {KEYDEF_OFFHOOK, soft_key_default_offhook, sizeof(soft_key_default_offhook) / sizeof(uint8_t)},
00639    {KEYDEF_CONNWITHTRANS, soft_key_default_connwithtrans, sizeof(soft_key_default_connwithtrans) / sizeof(uint8_t)},
00640    {KEYDEF_DADFD, soft_key_default_dadfd, sizeof(soft_key_default_dadfd) / sizeof(uint8_t)},
00641    {KEYDEF_CONNWITHCONF, soft_key_default_connwithconf, sizeof(soft_key_default_connwithconf) / sizeof(uint8_t)},
00642    {KEYDEF_RINGOUT, soft_key_default_ringout, sizeof(soft_key_default_ringout) / sizeof(uint8_t)},
00643    {KEYDEF_OFFHOOKWITHFEAT, soft_key_default_offhookwithfeat, sizeof(soft_key_default_offhookwithfeat) / sizeof(uint8_t)},
00644    {KEYDEF_UNKNOWN, soft_key_default_unknown, sizeof(soft_key_default_unknown) / sizeof(uint8_t)}
00645 };
00646 
00647 struct soft_key_template_res_message {
00648    uint32_t softKeyOffset;
00649    uint32_t softKeyCount;
00650    uint32_t totalSoftKeyCount;
00651    struct soft_key_template_definition softKeyTemplateDefinition[32];
00652 };
00653 
00654 #define SOFT_KEY_SET_RES_MESSAGE 0x0109
00655 
00656 struct soft_key_set_definition {
00657    uint8_t softKeyTemplateIndex[16];
00658    uint16_t softKeyInfoIndex[16];
00659 };
00660 
00661 struct soft_key_set_res_message {
00662    uint32_t softKeySetOffset;
00663    uint32_t softKeySetCount;
00664    uint32_t totalSoftKeySetCount;
00665    struct soft_key_set_definition softKeySetDefinition[16];
00666    uint32_t res;
00667 };
00668 
00669 #define SELECT_SOFT_KEYS_MESSAGE 0x0110
00670 struct select_soft_keys_message {
00671    uint32_t instance;
00672    uint32_t reference;
00673    uint32_t softKeySetIndex;
00674    uint32_t validKeyMask;
00675 };
00676 
00677 #define CALL_STATE_MESSAGE 0x0111
00678 struct call_state_message {
00679    uint32_t callState;
00680    uint32_t lineInstance;
00681    uint32_t callReference;
00682    uint32_t space[3];
00683 };
00684 
00685 #define DISPLAY_PROMPT_STATUS_MESSAGE 0x0112
00686 struct display_prompt_status_message {
00687    uint32_t messageTimeout;
00688    char promptMessage[32];
00689    uint32_t lineInstance;
00690    uint32_t callReference;
00691 };
00692 
00693 #define CLEAR_PROMPT_MESSAGE  0x0113
00694 struct clear_prompt_message {
00695        uint32_t lineInstance;
00696        uint32_t callReference;
00697 };
00698 
00699 #define DISPLAY_NOTIFY_MESSAGE 0x0114
00700 struct display_notify_message {
00701    uint32_t displayTimeout;
00702    char displayMessage[100];
00703 };
00704 
00705 #define ACTIVATE_CALL_PLANE_MESSAGE 0x0116
00706 struct activate_call_plane_message {
00707    uint32_t lineInstance;
00708 };
00709 
00710 #define DIALED_NUMBER_MESSAGE 0x011D
00711 struct dialed_number_message {
00712    char dialedNumber[24];
00713    uint32_t lineInstance;
00714    uint32_t callReference;
00715 };
00716 
00717 union skinny_data {
00718    struct alarm_message alarm;
00719    struct speed_dial_stat_req_message speeddialreq;
00720    struct register_message reg;
00721    struct register_ack_message regack;
00722    struct register_rej_message regrej;
00723    struct capabilities_res_message caps;
00724    struct version_res_message version;
00725    struct button_template_res_message buttontemplate;
00726    struct displaytext_message displaytext;
00727    struct display_prompt_status_message displaypromptstatus;
00728    struct clear_prompt_message clearpromptstatus;
00729    struct definetimedate_message definetimedate;
00730    struct start_tone_message starttone;
00731    struct stop_tone_message stoptone;
00732    struct speed_dial_stat_res_message speeddial;
00733    struct line_state_req_message line;
00734    struct line_stat_res_message linestat;
00735    struct soft_key_set_res_message softkeysets;
00736    struct soft_key_template_res_message softkeytemplate;
00737    struct server_res_message serverres;
00738    struct reset_message reset;
00739    struct set_lamp_message setlamp;
00740    struct set_ringer_message setringer;
00741    struct call_state_message callstate;
00742    struct keypad_button_message keypad;
00743    struct select_soft_keys_message selectsoftkey;
00744    struct activate_call_plane_message activatecallplane;
00745    struct stimulus_message stimulus;
00746    struct offhook_message offhook;
00747    struct onhook_message onhook;
00748    struct set_speaker_message setspeaker;
00749    struct set_microphone_message setmicrophone;
00750    struct call_info_message callinfo;
00751    struct start_media_transmission_message startmedia;
00752    struct stop_media_transmission_message stopmedia;
00753    struct open_receive_channel_message openreceivechannel;
00754    struct open_receive_channel_ack_message openreceivechannelack;
00755    struct close_receive_channel_message closereceivechannel;
00756    struct display_notify_message displaynotify;
00757    struct dialed_number_message dialednumber;
00758    struct soft_key_event_message softkeyeventmessage;
00759    struct enbloc_call_message enbloccallmessage;
00760 };
00761 
00762 /* packet composition */
00763 struct skinny_req {
00764    int len;
00765    int res;
00766    int e;
00767    union skinny_data data;
00768 };
00769 
00770 /* XXX This is the combined size of the variables above.  (len, res, e)
00771    If more are added, this MUST change.
00772    (sizeof(skinny_req) - sizeof(skinny_data)) DOES NOT WORK on all systems (amd64?). */
00773 int skinny_header_size = 12;
00774 
00775 /*****************************
00776  * Asterisk specific globals *
00777  *****************************/
00778 
00779 static int skinnydebug = 0;
00780 
00781 /* a hostname, portnumber, socket and such is usefull for VoIP protocols */
00782 static struct sockaddr_in bindaddr;
00783 static char ourhost[256];
00784 static int ourport;
00785 static struct in_addr __ourip;
00786 struct ast_hostent ahp;
00787 struct hostent *hp;
00788 static int skinnysock = -1;
00789 static pthread_t accept_t;
00790 static char context[AST_MAX_CONTEXT] = "default";
00791 static char language[MAX_LANGUAGE] = "";
00792 static char mohinterpret[MAX_MUSICCLASS] = "default";
00793 static char mohsuggest[MAX_MUSICCLASS] = "";
00794 static char cid_num[AST_MAX_EXTENSION] = "";
00795 static char cid_name[AST_MAX_EXTENSION] = "";
00796 static char linelabel[AST_MAX_EXTENSION] ="";
00797 static int nat = 0;
00798 static ast_group_t cur_callergroup = 0;
00799 static ast_group_t cur_pickupgroup = 0;
00800 static int immediate = 0;
00801 static int callwaiting = 0;
00802 static int callreturn = 0;
00803 static int threewaycalling = 0;
00804 static int mwiblink = 0;
00805 /* This is for flashhook transfers */
00806 static int transfer = 0;
00807 static int cancallforward = 0;
00808 /* static int busycount = 3;*/
00809 static char accountcode[AST_MAX_ACCOUNT_CODE] = "";
00810 static char mailbox[AST_MAX_EXTENSION];
00811 static int amaflags = 0;
00812 static int callnums = 1;
00813 
00814 #define SKINNY_DEVICE_UNKNOWN    -1
00815 #define SKINNY_DEVICE_NONE    0
00816 #define SKINNY_DEVICE_30SPPLUS      1
00817 #define SKINNY_DEVICE_12SPPLUS      2
00818 #define SKINNY_DEVICE_12SP    3
00819 #define SKINNY_DEVICE_12      4
00820 #define SKINNY_DEVICE_30VIP      5
00821 #define SKINNY_DEVICE_7910    6
00822 #define SKINNY_DEVICE_7960    7
00823 #define SKINNY_DEVICE_7940    8
00824 #define SKINNY_DEVICE_7935    9
00825 #define SKINNY_DEVICE_ATA186     12 /* Cisco ATA-186 */
00826 #define SKINNY_DEVICE_7941    115
00827 #define SKINNY_DEVICE_7971    119
00828 #define SKINNY_DEVICE_7914    124   /* Expansion module */
00829 #define SKINNY_DEVICE_7985    302
00830 #define SKINNY_DEVICE_7911    307
00831 #define SKINNY_DEVICE_7961GE     308
00832 #define SKINNY_DEVICE_7941GE     309
00833 #define SKINNY_DEVICE_7931    348
00834 #define SKINNY_DEVICE_7921    365
00835 #define SKINNY_DEVICE_7906    369
00836 #define SKINNY_DEVICE_7962    404   /* Not found */
00837 #define SKINNY_DEVICE_7937    431
00838 #define SKINNY_DEVICE_7942    434
00839 #define SKINNY_DEVICE_7945    435
00840 #define SKINNY_DEVICE_7965    436
00841 #define SKINNY_DEVICE_7975    437
00842 #define SKINNY_DEVICE_7905    20000
00843 #define SKINNY_DEVICE_7920    30002
00844 #define SKINNY_DEVICE_7970    30006
00845 #define SKINNY_DEVICE_7912    30007
00846 #define SKINNY_DEVICE_7902    30008
00847 #define SKINNY_DEVICE_CIPC    30016 /* Cisco IP Communicator */
00848 #define SKINNY_DEVICE_7961    30018
00849 #define SKINNY_DEVICE_7936    30019
00850 #define SKINNY_DEVICE_SCCPGATEWAY_AN   30027 /* ??? */
00851 #define SKINNY_DEVICE_SCCPGATEWAY_BRI  30028 /* ??? */
00852 
00853 #define SKINNY_SPEAKERON 1
00854 #define SKINNY_SPEAKEROFF 2
00855 
00856 #define SKINNY_MICON 1
00857 #define SKINNY_MICOFF 2
00858 
00859 #define SKINNY_OFFHOOK 1
00860 #define SKINNY_ONHOOK 2
00861 #define SKINNY_RINGOUT 3
00862 #define SKINNY_RINGIN 4
00863 #define SKINNY_CONNECTED 5
00864 #define SKINNY_BUSY 6
00865 #define SKINNY_CONGESTION 7
00866 #define SKINNY_HOLD 8
00867 #define SKINNY_CALLWAIT 9
00868 #define SKINNY_TRANSFER 10
00869 #define SKINNY_PARK 11
00870 #define SKINNY_PROGRESS 12
00871 #define SKINNY_INVALID 14
00872 
00873 #define SKINNY_SILENCE     0x00
00874 #define SKINNY_DIALTONE    0x21
00875 #define SKINNY_BUSYTONE    0x23
00876 #define SKINNY_ALERT    0x24
00877 #define SKINNY_REORDER     0x25
00878 #define SKINNY_CALLWAITTONE   0x2D
00879 #define SKINNY_NOTONE      0x7F
00880 
00881 #define SKINNY_LAMP_OFF 1
00882 #define SKINNY_LAMP_ON 2
00883 #define SKINNY_LAMP_WINK 3
00884 #define SKINNY_LAMP_FLASH 4
00885 #define SKINNY_LAMP_BLINK 5
00886 
00887 #define SKINNY_RING_OFF 1
00888 #define SKINNY_RING_INSIDE 2
00889 #define SKINNY_RING_OUTSIDE 3
00890 #define SKINNY_RING_FEATURE 4
00891 
00892 #define TYPE_TRUNK 1
00893 #define TYPE_LINE 2
00894 
00895 /* Skinny rtp stream modes. Do we really need this? */
00896 #define SKINNY_CX_SENDONLY 0
00897 #define SKINNY_CX_RECVONLY 1
00898 #define SKINNY_CX_SENDRECV 2
00899 #define SKINNY_CX_CONF     3
00900 #define SKINNY_CX_CONFERENCE  3
00901 #define SKINNY_CX_MUTE     4
00902 #define SKINNY_CX_INACTIVE 4
00903 
00904 #if 0
00905 static char *skinny_cxmodes[] = {
00906    "sendonly",
00907    "recvonly",
00908    "sendrecv",
00909    "confrnce",
00910    "inactive"
00911 };
00912 #endif
00913 
00914 /* driver scheduler */
00915 static struct sched_context *sched = NULL;
00916 static struct io_context *io;
00917 
00918 /* Protect the monitoring thread, so only one process can kill or start it, and not
00919    when it's doing something critical. */
00920 AST_MUTEX_DEFINE_STATIC(monlock);
00921 /* Protect the network socket */
00922 AST_MUTEX_DEFINE_STATIC(netlock);
00923 /* Protect the session list */
00924 AST_MUTEX_DEFINE_STATIC(sessionlock);
00925 /* Protect the device list */
00926 AST_MUTEX_DEFINE_STATIC(devicelock);
00927 #if 0
00928 /* Protect the paging device list */
00929 AST_MUTEX_DEFINE_STATIC(pagingdevicelock);
00930 #endif
00931 
00932 /* This is the thread for the monitor which checks for input on the channels
00933    which are not currently in use. */
00934 static pthread_t monitor_thread = AST_PTHREADT_NULL;
00935 
00936 /* Wait up to 16 seconds for first digit */
00937 static int firstdigittimeout = 16000;
00938 
00939 /* How long to wait for following digits */
00940 static int gendigittimeout = 8000;
00941 
00942 /* How long to wait for an extra digit, if there is an ambiguous match */
00943 static int matchdigittimeout = 3000;
00944 
00945 struct skinny_subchannel {
00946    ast_mutex_t lock;
00947    struct ast_channel *owner;
00948    struct ast_rtp *rtp;
00949    struct ast_rtp *vrtp;
00950    unsigned int callid;
00951    /* time_t lastouttime; */        /* Unused */
00952    int progress;
00953    int ringing;
00954    int onhold;
00955    /* int lastout; */            /* Unused */
00956    int cxmode;
00957    int nat;
00958    int outgoing;
00959    int alreadygone;
00960 
00961    struct skinny_subchannel *next;
00962    struct skinny_line *parent;
00963 };
00964 
00965 struct skinny_line {
00966    ast_mutex_t lock;
00967    char name[80];
00968    char label[24];               /* Label that shows next to the line buttons */
00969    char accountcode[AST_MAX_ACCOUNT_CODE];
00970    char exten[AST_MAX_EXTENSION];         /* Extension where to start */
00971    char context[AST_MAX_CONTEXT];
00972    char language[MAX_LANGUAGE];
00973    char cid_num[AST_MAX_EXTENSION];    /* Caller*ID */
00974    char cid_name[AST_MAX_EXTENSION];      /* Caller*ID */
00975    char lastcallerid[AST_MAX_EXTENSION];     /* Last Caller*ID */
00976    char call_forward[AST_MAX_EXTENSION];
00977    char mailbox[AST_MAX_EXTENSION];
00978    char mohinterpret[MAX_MUSICCLASS];
00979    char mohsuggest[MAX_MUSICCLASS];
00980    char lastnumberdialed[AST_MAX_EXTENSION]; /* Last number that was dialed - used for redial */
00981    int curtone;               /* Current tone being played */
00982    ast_group_t callgroup;
00983    ast_group_t pickupgroup;
00984    int callwaiting;
00985    int transfer;
00986    int threewaycalling;
00987    int mwiblink;
00988    int cancallforward;
00989    int callreturn;
00990    int dnd; /* How does this affect callwait?  Do we just deny a skinny_request if we're dnd? */
00991    int hascallerid;
00992    int hidecallerid;
00993    int amaflags;
00994    int type;
00995    int instance;
00996    int group;
00997    int needdestroy;
00998    int capability;
00999    int nonCodecCapability;
01000    int onhooktime;
01001    int msgstate;              /* voicemail message state */
01002    int immediate;
01003    int hookstate;
01004    int nat;
01005 
01006    struct ast_codec_pref prefs;
01007    struct skinny_subchannel *sub;
01008    struct skinny_line *next;
01009    struct skinny_device *parent;
01010 };
01011 
01012 struct skinny_speeddial {
01013    ast_mutex_t lock;
01014    char label[42];
01015    char exten[AST_MAX_EXTENSION];
01016    int instance;
01017 
01018    struct skinny_speeddial *next;
01019    struct skinny_device *parent;
01020 };
01021 
01022 struct skinny_addon {
01023    ast_mutex_t lock;
01024    char type[10];
01025 
01026    struct skinny_addon *next;
01027    struct skinny_device *parent;
01028 };
01029 
01030 static struct skinny_device {
01031    /* A device containing one or more lines */
01032    char name[80];
01033    char id[16];
01034    char version_id[16];
01035    int type;
01036    int registered;
01037    int lastlineinstance;
01038    int lastcallreference;
01039    int capability;
01040    int earlyrtp;
01041    char exten[AST_MAX_EXTENSION];
01042    struct sockaddr_in addr;
01043    struct in_addr ourip;
01044    struct skinny_line *lines;
01045    struct skinny_speeddial *speeddials;
01046    struct skinny_addon *addons;
01047    struct ast_codec_pref prefs;
01048    struct ast_ha *ha;
01049    struct skinnysession *session;
01050    struct skinny_device *next;
01051 } *devices = NULL;
01052 
01053 struct skinny_paging_device {
01054    char name[80];
01055    char id[16];
01056    struct skinny_device ** devices;
01057    struct skinny_paging_device *next;
01058 };
01059 
01060 static struct skinnysession {
01061    pthread_t t;
01062    ast_mutex_t lock;
01063    struct sockaddr_in sin;
01064    int fd;
01065    char inbuf[SKINNY_MAX_PACKET];
01066    char outbuf[SKINNY_MAX_PACKET];
01067    struct skinny_device *device;
01068    struct skinnysession *next;
01069 } *sessions = NULL;
01070 
01071 static struct ast_channel *skinny_request(const char *type, int format, void *data, int *cause);
01072 static int skinny_call(struct ast_channel *ast, char *dest, int timeout);
01073 static int skinny_hangup(struct ast_channel *ast);
01074 static int skinny_answer(struct ast_channel *ast);
01075 static struct ast_frame *skinny_read(struct ast_channel *ast);
01076 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame);
01077 static int skinny_indicate(struct ast_channel *ast, int ind, const void *data, size_t datalen);
01078 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
01079 static int skinny_senddigit_begin(struct ast_channel *ast, char digit);
01080 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration);
01081 static int handle_time_date_req_message(struct skinny_req *req, struct skinnysession *s);
01082 
01083 static const struct ast_channel_tech skinny_tech = {
01084    .type = "Skinny",
01085    .description = tdesc,
01086    .capabilities = ((AST_FORMAT_MAX_AUDIO << 1) - 1),
01087    .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER,
01088    .requester = skinny_request,
01089    .call = skinny_call,
01090    .hangup = skinny_hangup,
01091    .answer = skinny_answer,
01092    .read = skinny_read,
01093    .write = skinny_write,
01094    .indicate = skinny_indicate,
01095    .fixup = skinny_fixup,
01096    .send_digit_begin = skinny_senddigit_begin,
01097    .send_digit_end = skinny_senddigit_end,
01098 /* .bridge = ast_rtp_bridge, */
01099 };
01100 
01101 static void *get_button_template(struct skinnysession *s, struct button_definition_template *btn)
01102 {
01103    struct skinny_device *d = s->device;
01104    struct skinny_addon *a = d->addons;
01105    int i;
01106 
01107    switch (d->type) {
01108       case SKINNY_DEVICE_30SPPLUS:
01109       case SKINNY_DEVICE_30VIP:
01110          /* 13 rows, 2 columns */
01111          for (i = 0; i < 4; i++)
01112             (btn++)->buttonDefinition = BT_LINE;
01113          (btn++)->buttonDefinition = BT_REDIAL;
01114          (btn++)->buttonDefinition = BT_VOICEMAIL;
01115          (btn++)->buttonDefinition = BT_CALLPARK;
01116          (btn++)->buttonDefinition = BT_FORWARDALL;
01117          (btn++)->buttonDefinition = BT_CONFERENCE;
01118          for (i = 0; i < 4; i++)
01119             (btn++)->buttonDefinition = BT_NONE;
01120          for (i = 0; i < 13; i++)
01121             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01122          
01123          break;
01124       case SKINNY_DEVICE_12SPPLUS:
01125       case SKINNY_DEVICE_12SP:
01126       case SKINNY_DEVICE_12:
01127          /* 6 rows, 2 columns */
01128          for (i = 0; i < 2; i++)
01129             (btn++)->buttonDefinition = BT_LINE;
01130          (btn++)->buttonDefinition = BT_REDIAL;
01131          for (i = 0; i < 3; i++)
01132             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01133          (btn++)->buttonDefinition = BT_HOLD;
01134          (btn++)->buttonDefinition = BT_TRANSFER;
01135          (btn++)->buttonDefinition = BT_FORWARDALL;
01136          (btn++)->buttonDefinition = BT_CALLPARK;
01137          (btn++)->buttonDefinition = BT_VOICEMAIL;
01138          (btn++)->buttonDefinition = BT_CONFERENCE;
01139          break;
01140       case SKINNY_DEVICE_7910:
01141          (btn++)->buttonDefinition = BT_LINE;
01142          (btn++)->buttonDefinition = BT_HOLD;
01143          (btn++)->buttonDefinition = BT_TRANSFER;
01144          (btn++)->buttonDefinition = BT_DISPLAY;
01145          (btn++)->buttonDefinition = BT_VOICEMAIL;
01146          (btn++)->buttonDefinition = BT_CONFERENCE;
01147          (btn++)->buttonDefinition = BT_FORWARDALL;
01148          for (i = 0; i < 2; i++)
01149             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01150          (btn++)->buttonDefinition = BT_REDIAL;
01151          break;
01152       case SKINNY_DEVICE_7960:
01153       case SKINNY_DEVICE_7961:
01154       case SKINNY_DEVICE_7961GE:
01155       case SKINNY_DEVICE_7962:
01156       case SKINNY_DEVICE_7965:
01157          for (i = 0; i < 6; i++)
01158             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01159          break;
01160       case SKINNY_DEVICE_7940:
01161       case SKINNY_DEVICE_7941:
01162       case SKINNY_DEVICE_7941GE:
01163       case SKINNY_DEVICE_7942:
01164       case SKINNY_DEVICE_7945:
01165          for (i = 0; i < 2; i++)
01166             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01167          break;
01168       case SKINNY_DEVICE_7935:
01169       case SKINNY_DEVICE_7936:
01170          for (i = 0; i < 2; i++)
01171             (btn++)->buttonDefinition = BT_LINE;
01172          break;
01173       case SKINNY_DEVICE_ATA186:
01174          (btn++)->buttonDefinition = BT_LINE;
01175          break;
01176       case SKINNY_DEVICE_7970:
01177       case SKINNY_DEVICE_7971:
01178       case SKINNY_DEVICE_7975:
01179       case SKINNY_DEVICE_CIPC:
01180          for (i = 0; i < 8; i++)
01181             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01182          break;
01183       case SKINNY_DEVICE_7985:
01184          /* XXX I have no idea what the buttons look like on these. */
01185          ast_log(LOG_WARNING, "Unsupported device type '%d (7985)' found.\n", d->type);
01186          break;
01187       case SKINNY_DEVICE_7912:
01188       case SKINNY_DEVICE_7911:
01189       case SKINNY_DEVICE_7905:
01190          (btn++)->buttonDefinition = BT_LINE;
01191          (btn++)->buttonDefinition = BT_HOLD;
01192          break;
01193       case SKINNY_DEVICE_7920:
01194          /* XXX I don't know if this is right. */
01195          for (i = 0; i < 4; i++)
01196             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01197          break;
01198       case SKINNY_DEVICE_7921:
01199          for (i = 0; i < 6; i++)
01200             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01201          break;
01202       case SKINNY_DEVICE_7902:
01203          ast_log(LOG_WARNING, "Unsupported device type '%d (7902)' found.\n", d->type);
01204          break;
01205       case SKINNY_DEVICE_7906:
01206          ast_log(LOG_WARNING, "Unsupported device type '%d (7906)' found.\n", d->type);
01207          break;
01208       case SKINNY_DEVICE_7931:
01209          ast_log(LOG_WARNING, "Unsupported device type '%d (7931)' found.\n", d->type);
01210          break;
01211       case SKINNY_DEVICE_7937:
01212          ast_log(LOG_WARNING, "Unsupported device type '%d (7937)' found.\n", d->type);
01213          break;
01214       case SKINNY_DEVICE_7914:
01215          ast_log(LOG_WARNING, "Unsupported device type '%d (7914)' found.  Expansion module registered by itself?\n", d->type);
01216          break;
01217       case SKINNY_DEVICE_SCCPGATEWAY_AN:
01218       case SKINNY_DEVICE_SCCPGATEWAY_BRI:
01219          ast_log(LOG_WARNING, "Unsupported device type '%d (SCCP gateway)' found.\n", d->type);
01220          break;
01221       default:
01222          ast_log(LOG_WARNING, "Unknown device type '%d' found.\n", d->type);
01223          break;
01224    }
01225 
01226    for (a = d->addons; a; a = a->next) {
01227       if (!strcasecmp(a->type, "7914")) {
01228          for (i = 0; i < 14; i++)
01229             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01230       } else {
01231          ast_log(LOG_WARNING, "Unknown addon type '%s' found.  Skipping.\n", a->type);
01232       }
01233    }
01234 
01235    return btn;
01236 }
01237 
01238 static struct skinny_req *req_alloc(size_t size, int response_message)
01239 {
01240    struct skinny_req *req;
01241 
01242    if (!(req = ast_calloc(1, skinny_header_size + size + 4)))
01243       return NULL;
01244 
01245    req->len = htolel(size+4);
01246    req->e = htolel(response_message);
01247 
01248    return req;
01249 }
01250 
01251 static struct skinny_line *find_line_by_instance(struct skinny_device *d, int instance)
01252 {
01253    struct skinny_line *l;
01254 
01255    if (!instance)
01256       instance = 1;
01257 
01258    for (l = d->lines; l; l = l->next) {
01259       if (l->instance == instance)
01260          break;
01261    }
01262 
01263    if (!l) {
01264       ast_log(LOG_WARNING, "Could not find line with instance '%d' on device '%s'\n", instance, d->name);
01265    }
01266    return l;
01267 }
01268 
01269 static struct skinny_line *find_line_by_name(const char *dest)
01270 {
01271    struct skinny_line *l;
01272    struct skinny_device *d;
01273    char line[256];
01274    char *at;
01275    char *device;
01276 
01277    ast_copy_string(line, dest, sizeof(line));
01278    at = strchr(line, '@');
01279    if (!at) {
01280       ast_log(LOG_NOTICE, "Device '%s' has no @ (at) sign!\n", dest);
01281       return NULL;
01282    }
01283    *at++ = '\0';
01284    device = at;
01285    ast_mutex_lock(&devicelock);
01286    for (d = devices; d; d = d->next) {
01287       if (!strcasecmp(d->name, device)) {
01288          if (skinnydebug)
01289             ast_verbose("Found device: %s\n", d->name);
01290          /* Found the device */
01291          for (l = d->lines; l; l = l->next) {
01292             /* Search for the right line */
01293             if (!strcasecmp(l->name, line)) {
01294                ast_mutex_unlock(&devicelock);
01295                return l;
01296             }
01297          }
01298       }
01299    }
01300    /* Device not found */
01301    ast_mutex_unlock(&devicelock);
01302    return NULL;
01303 }
01304 
01305 /* It's quicker/easier to find the subchannel when we know the instance number too */
01306 static struct skinny_subchannel *find_subchannel_by_instance_reference(struct skinny_device *d, int instance, int reference)
01307 {
01308    struct skinny_line *l = find_line_by_instance(d, instance);
01309    struct skinny_subchannel *sub;
01310 
01311    if (!l) {
01312       return NULL;
01313    }
01314 
01315    if (!reference)
01316       sub = l->sub;
01317    else {
01318       for (sub = l->sub; sub; sub = sub->next) {
01319          if (sub->callid == reference)
01320             break;
01321       }
01322    }
01323 
01324    if (!sub) {
01325       ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s'\n", reference, d->name);
01326    }
01327    return sub;
01328 }
01329 
01330 /* Find the subchannel when we only have the callid - this shouldn't happen often */
01331 static struct skinny_subchannel *find_subchannel_by_reference(struct skinny_device *d, int reference)
01332 {
01333    struct skinny_line *l;
01334    struct skinny_subchannel *sub = NULL;
01335 
01336    for (l = d->lines; l; l = l->next) {
01337       for (sub = l->sub; sub; sub = sub->next) {
01338          if (sub->callid == reference)
01339             break;
01340       }
01341       if (sub)
01342          break;
01343    }
01344 
01345    if (!l) {
01346       ast_log(LOG_WARNING, "Could not find any lines that contained a subchannel with reference '%d' on device '%s'\n", reference, d->name);
01347    } else {
01348       if (!sub) {
01349          ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s@%s'\n", reference, l->name, d->name);
01350       }
01351    }
01352    return sub;
01353 }
01354 
01355 static struct skinny_speeddial *find_speeddial_by_instance(struct skinny_device *d, int instance)
01356 {
01357    struct skinny_speeddial *sd;
01358 
01359    for (sd = d->speeddials; sd; sd = sd->next) {
01360       if (sd->instance == instance)
01361          break;
01362    }
01363 
01364    if (!sd) {
01365       ast_log(LOG_WARNING, "Could not find speeddial with instance '%d' on device '%s'\n", instance, d->name);
01366    }
01367    return sd;
01368 }
01369 
01370 static int codec_skinny2ast(enum skinny_codecs skinnycodec)
01371 {
01372    switch (skinnycodec) {
01373    case SKINNY_CODEC_ALAW:
01374       return AST_FORMAT_ALAW;
01375    case SKINNY_CODEC_ULAW:
01376       return AST_FORMAT_ULAW;
01377    case SKINNY_CODEC_G723_1:
01378       return AST_FORMAT_G723_1;
01379    case SKINNY_CODEC_G729A:
01380       return AST_FORMAT_G729A;
01381    case SKINNY_CODEC_G726_32:
01382       return AST_FORMAT_G726_AAL2; /* XXX Is this right? */
01383    case SKINNY_CODEC_H261:
01384       return AST_FORMAT_H261;
01385    case SKINNY_CODEC_H263:
01386       return AST_FORMAT_H263;
01387    default:
01388       return 0;
01389    }
01390 }
01391 
01392 static int codec_ast2skinny(int astcodec)
01393 {
01394    switch (astcodec) {
01395    case AST_FORMAT_ALAW:
01396       return SKINNY_CODEC_ALAW;
01397    case AST_FORMAT_ULAW:
01398       return SKINNY_CODEC_ULAW;
01399    case AST_FORMAT_G723_1:
01400       return SKINNY_CODEC_G723_1;
01401    case AST_FORMAT_G729A:
01402       return SKINNY_CODEC_G729A;
01403    case AST_FORMAT_G726_AAL2: /* XXX Is this right? */
01404       return SKINNY_CODEC_G726_32;
01405    case AST_FORMAT_H261:
01406       return SKINNY_CODEC_H261;
01407    case AST_FORMAT_H263:
01408       return SKINNY_CODEC_H263;
01409    default:
01410       return 0;
01411    }
01412 }
01413 
01414 
01415 static int skinny_register(struct skinny_req *req, struct skinnysession *s)
01416 {
01417    struct skinny_device *d;
01418    struct sockaddr_in sin;
01419    socklen_t slen;
01420 
01421    ast_mutex_lock(&devicelock);
01422    for (d = devices; d; d = d->next) {
01423       if (!strcasecmp(req->data.reg.name, d->id)
01424             && ast_apply_ha(d->ha, &(s->sin))) {
01425          s->device = d;
01426          d->type = letohl(req->data.reg.type);
01427          if (ast_strlen_zero(d->version_id)) {
01428             ast_copy_string(d->version_id, version_id, sizeof(d->version_id));
01429          }
01430          d->registered = 1;
01431          d->session = s;
01432 
01433          slen = sizeof(sin);
01434          if (getsockname(s->fd, (struct sockaddr *)&sin, &slen)) {
01435             ast_log(LOG_WARNING, "Cannot get socket name\n");
01436             sin.sin_addr = __ourip;
01437          }
01438          d->ourip = sin.sin_addr;
01439          break;
01440       }
01441    }
01442    ast_mutex_unlock(&devicelock);
01443    if (!d) {
01444       return 0;
01445    }
01446    return 1;
01447 }
01448 
01449 static int skinny_unregister(struct skinny_req *req, struct skinnysession *s)
01450 {
01451    struct skinny_device *d;
01452 
01453    d = s->device;
01454 
01455    if (d) {
01456       d->session = NULL;
01457       d->registered = 0;
01458    }
01459 
01460    return -1; /* main loop will destroy the session */
01461 }
01462 
01463 static int transmit_response(struct skinnysession *s, struct skinny_req *req)
01464 {
01465    int res = 0;
01466 
01467    if (!s) {
01468       ast_log(LOG_WARNING, "Asked to transmit to a non-existant session!\n");
01469       return -1;
01470    }
01471 
01472    ast_mutex_lock(&s->lock);
01473 
01474    if (skinnydebug)
01475       ast_log(LOG_VERBOSE, "writing packet type %04X (%d bytes) to socket %d\n", letohl(req->e), letohl(req->len)+8, s->fd);
01476 
01477    if (letohl(req->len > SKINNY_MAX_PACKET) || letohl(req->len < 0)) {
01478       ast_log(LOG_WARNING, "transmit_response: the length of the request is out of bounds\n");
01479       return -1;
01480    }
01481 
01482    memset(s->outbuf,0,sizeof(s->outbuf));
01483    memcpy(s->outbuf, req, skinny_header_size);
01484    memcpy(s->outbuf+skinny_header_size, &req->data, letohl(req->len));
01485 
01486    res = write(s->fd, s->outbuf, letohl(req->len)+8);
01487 
01488    if (res != letohl(req->len)+8) {
01489       ast_log(LOG_WARNING, "Transmit: write only sent %d out of %d bytes: %s\n", res, letohl(req->len)+8, strerror(errno));
01490       if (res == -1) {
01491          if (skinnydebug)
01492             ast_log(LOG_WARNING, "Transmit: Skinny Client was lost, unregistering\n");
01493          skinny_unregister(NULL, s);
01494       }
01495       
01496    }
01497    
01498    ast_mutex_unlock(&s->lock);
01499    return 1;
01500 }
01501 
01502 static void transmit_speaker_mode(struct skinnysession *s, int mode)
01503 {
01504    struct skinny_req *req;
01505 
01506    if (!(req = req_alloc(sizeof(struct set_speaker_message), SET_SPEAKER_MESSAGE)))
01507       return;
01508 
01509    req->data.setspeaker.mode = htolel(mode);
01510    transmit_response(s, req);
01511 }
01512 /*
01513 static void transmit_microphone_mode(struct skinnysession *s, int mode)
01514 {
01515    struct skinny_req *req;
01516 
01517    if (!(req = req_alloc(sizeof(struct set_microphone_message), SET_MICROPHONE_MESSAGE)))
01518       return;
01519 
01520    req->data.setmicrophone.mode = htolel(mode);
01521    transmit_response(s, req);
01522 }
01523 */
01524 
01525 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)
01526 {
01527    struct skinny_req *req;
01528 
01529    if (!(req = req_alloc(sizeof(struct call_info_message), CALL_INFO_MESSAGE)))
01530       return;
01531 
01532    if (skinnydebug)
01533          ast_verbose("Setting Callinfo to %s(%s) from %s(%s) on %s(%d)\n", fromname, fromnum, toname, tonum, s->device->name, instance);
01534 
01535    if (fromname) {
01536       ast_copy_string(req->data.callinfo.callingPartyName, fromname, sizeof(req->data.callinfo.callingPartyName));
01537    }
01538    if (fromnum) {
01539       ast_copy_string(req->data.callinfo.callingParty, fromnum, sizeof(req->data.callinfo.callingParty));
01540    }
01541    if (toname) {
01542       ast_copy_string(req->data.callinfo.calledPartyName, toname, sizeof(req->data.callinfo.calledPartyName));
01543    }
01544    if (tonum) {
01545       ast_copy_string(req->data.callinfo.calledParty, tonum, sizeof(req->data.callinfo.calledParty));
01546    }
01547    req->data.callinfo.instance = htolel(instance);
01548    req->data.callinfo.reference = htolel(callid);
01549    req->data.callinfo.type = htolel(calltype);
01550    transmit_response(s, req);
01551 }
01552 
01553 static void transmit_connect(struct skinnysession *s, struct skinny_subchannel *sub)
01554 {
01555    struct skinny_req *req;
01556    struct skinny_line *l = sub->parent;
01557    struct ast_format_list fmt;
01558 
01559    if (!(req = req_alloc(sizeof(struct open_receive_channel_message), OPEN_RECEIVE_CHANNEL_MESSAGE)))
01560       return;
01561 
01562    fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
01563 
01564    req->data.openreceivechannel.conferenceId = htolel(sub->callid);
01565    req->data.openreceivechannel.partyId = htolel(sub->callid);
01566    req->data.openreceivechannel.packets = htolel(fmt.cur_ms);
01567    req->data.openreceivechannel.capability = htolel(codec_ast2skinny(fmt.bits));
01568    req->data.openreceivechannel.echo = htolel(0);
01569    req->data.openreceivechannel.bitrate = htolel(0);
01570    transmit_response(s, req);
01571 }
01572 
01573 static void transmit_tone(struct skinnysession *s, int tone, int instance, int reference)
01574 {
01575    struct skinny_req *req;
01576 
01577    if (tone == SKINNY_NOTONE) {
01578       /* This is bad, mmm'kay? */
01579       return;
01580    }
01581 
01582    if (tone > 0) {
01583       if (!(req = req_alloc(sizeof(struct start_tone_message), START_TONE_MESSAGE)))
01584          return;
01585       req->data.starttone.tone = htolel(tone);
01586       req->data.starttone.instance = htolel(instance);
01587       req->data.starttone.reference = htolel(reference);
01588    } else {
01589       if (!(req = req_alloc(sizeof(struct stop_tone_message), STOP_TONE_MESSAGE)))
01590          return;
01591       req->data.stoptone.instance = htolel(instance);
01592       req->data.stoptone.reference = htolel(reference);
01593    }
01594 
01595    if (tone > 0) {
01596       req->data.starttone.tone = htolel(tone);
01597    }
01598    transmit_response(s, req);
01599 }
01600 
01601 static void transmit_selectsoftkeys(struct skinnysession *s, int instance, int callid, int softkey)
01602 {
01603    struct skinny_req *req;
01604 
01605    if (!(req = req_alloc(sizeof(struct select_soft_keys_message), SELECT_SOFT_KEYS_MESSAGE)))
01606       return;
01607 
01608    req->data.selectsoftkey.instance = htolel(instance);
01609    req->data.selectsoftkey.reference = htolel(callid);
01610    req->data.selectsoftkey.softKeySetIndex = htolel(softkey);
01611    req->data.selectsoftkey.validKeyMask = htolel(0xFFFFFFFF);
01612    transmit_response(s, req);
01613 }
01614 
01615 static void transmit_lamp_indication(struct skinnysession *s, int stimulus, int instance, int indication)
01616 {
01617    struct skinny_req *req;
01618 
01619    if (!(req = req_alloc(sizeof(struct set_lamp_message), SET_LAMP_MESSAGE)))
01620       return;
01621 
01622    req->data.setlamp.stimulus = htolel(stimulus);
01623    req->data.setlamp.stimulusInstance = htolel(instance);
01624    req->data.setlamp.deviceStimulus = htolel(indication);
01625    transmit_response(s, req);
01626 }
01627 
01628 static void transmit_ringer_mode(struct skinnysession *s, int mode)
01629 {
01630    struct skinny_req *req;
01631 
01632    if (skinnydebug)
01633       ast_verbose("Setting ringer mode to '%d'.\n", mode);
01634 
01635    if (!(req = req_alloc(sizeof(struct set_ringer_message), SET_RINGER_MESSAGE)))
01636       return;
01637 
01638    req->data.setringer.ringerMode = htolel(mode);
01639    /* XXX okay, I don't quite know what this is, but here's what happens (on a 7960).
01640       Note: The phone will always show as ringing on the display.
01641 
01642       1: phone will audibly ring over and over
01643       2: phone will audibly ring only once
01644       any other value, will NOT cause the phone to audibly ring
01645    */
01646    req->data.setringer.unknown1 = htolel(1);
01647    /* XXX the value here doesn't seem to change anything.  Must be higher than 0.
01648       Perhaps a packet capture can shed some light on this. */
01649    req->data.setringer.unknown2 = htolel(1);
01650    transmit_response(s, req);
01651 }
01652 
01653 static void transmit_displaymessage(struct skinnysession *s, const char *text, int instance, int reference)
01654 {
01655    struct skinny_req *req;
01656 
01657    if (text == 0) {
01658       if (!(req = req_alloc(0, CLEAR_DISPLAY_MESSAGE)))
01659          return;
01660 
01661       req->data.clearpromptstatus.lineInstance = instance;
01662       req->data.clearpromptstatus.callReference = reference;
01663 
01664       if (skinnydebug)
01665          ast_verbose("Clearing Display\n");
01666    } else {
01667       if (!(req = req_alloc(sizeof(struct displaytext_message), DISPLAYTEXT_MESSAGE)))
01668          return;
01669 
01670       ast_copy_string(req->data.displaytext.text, text, sizeof(req->data.displaytext.text));
01671       if (skinnydebug)
01672          ast_verbose("Displaying message '%s'\n", req->data.displaytext.text);
01673    }
01674 
01675    transmit_response(s, req);
01676 }
01677 
01678 static void transmit_displaynotify(struct skinnysession *s, const char *text, int t)
01679 {
01680    struct skinny_req *req;
01681 
01682    if (!(req = req_alloc(sizeof(struct display_notify_message), DISPLAY_NOTIFY_MESSAGE)))
01683       return;
01684 
01685    ast_copy_string(req->data.displaynotify.displayMessage, text, sizeof(req->data.displaynotify.displayMessage));
01686    req->data.displaynotify.displayTimeout = htolel(t);
01687 
01688    if (skinnydebug)
01689       ast_verbose("Displaying notify '%s'\n", text);
01690 
01691    transmit_response(s, req);
01692 }
01693 
01694 static void transmit_displaypromptstatus(struct skinnysession *s, const char *text, int t, int instance, int callid)
01695 {
01696    struct skinny_req *req;
01697 
01698    if (text == 0) {
01699       if (!(req = req_alloc(sizeof(struct clear_prompt_message), CLEAR_PROMPT_MESSAGE)))
01700          return;
01701 
01702       req->data.clearpromptstatus.lineInstance = htolel(instance);
01703       req->data.clearpromptstatus.callReference = htolel(callid);
01704 
01705       if (skinnydebug)
01706          ast_verbose("Clearing Prompt\n");
01707    } else {
01708       if (!(req = req_alloc(sizeof(struct display_prompt_status_message), DISPLAY_PROMPT_STATUS_MESSAGE)))
01709          return;
01710 
01711       ast_copy_string(req->data.displaypromptstatus.promptMessage, text, sizeof(req->data.displaypromptstatus.promptMessage));
01712       req->data.displaypromptstatus.messageTimeout = htolel(t);
01713       req->data.displaypromptstatus.lineInstance = htolel(instance);
01714       req->data.displaypromptstatus.callReference = htolel(callid);
01715 
01716       if (skinnydebug)
01717          ast_verbose("Displaying Prompt Status '%s'\n", text);
01718    }
01719 
01720    transmit_response(s, req);
01721 }
01722 
01723 static void transmit_dialednumber(struct skinnysession *s, const char *text, int instance, int callid)
01724 {
01725    struct skinny_req *req;
01726 
01727    if (!(req = req_alloc(sizeof(struct dialed_number_message), DIALED_NUMBER_MESSAGE)))
01728       return;
01729 
01730    ast_copy_string(req->data.dialednumber.dialedNumber, text, sizeof(req->data.dialednumber.dialedNumber));
01731    req->data.dialednumber.lineInstance = htolel(instance);
01732    req->data.dialednumber.callReference = htolel(callid);
01733 
01734    transmit_response(s, req);
01735 }
01736 
01737 static void transmit_callstate(struct skinnysession *s, int instance, int state, unsigned callid)
01738 {
01739    struct skinny_req *req;
01740 
01741    if (state == SKINNY_ONHOOK) {
01742       if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
01743          return;
01744 
01745       req->data.closereceivechannel.conferenceId = htolel(callid);
01746       req->data.closereceivechannel.partyId = htolel(callid);
01747       transmit_response(s, req);
01748 
01749       if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
01750          return;
01751 
01752       req->data.stopmedia.conferenceId = htolel(callid);
01753       req->data.stopmedia.passThruPartyId = htolel(callid);
01754       transmit_response(s, req);
01755 
01756       transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
01757 
01758       transmit_displaypromptstatus(s, NULL, 0, instance, callid);
01759    }
01760 
01761    if (!(req = req_alloc(sizeof(struct call_state_message), CALL_STATE_MESSAGE)))
01762       return;
01763 
01764    req->data.callstate.callState = htolel(state);
01765    req->data.callstate.lineInstance = htolel(instance);
01766    req->data.callstate.callReference = htolel(callid);
01767    transmit_response(s, req);
01768 
01769    if (state == SKINNY_ONHOOK) {
01770       transmit_selectsoftkeys(s, 0, 0, KEYDEF_ONHOOK);
01771    }
01772 
01773    if (state == SKINNY_OFFHOOK || state == SKINNY_ONHOOK) {
01774       if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
01775          return;
01776 
01777       req->data.activatecallplane.lineInstance = htolel(instance);
01778       transmit_response(s, req);
01779    }
01780 }
01781 
01782 /*
01783 static int has_voicemail(struct skinny_line *l)
01784 {
01785    return ast_app_has_voicemail(l->mailbox, NULL);
01786 }
01787 */
01788 
01789 static void do_housekeeping(struct skinnysession *s)
01790 {
01791 /*
01792    int new;
01793    int old;
01794    struct skinny_device *d = s->device;
01795    struct skinny_line *l;
01796 */
01797 
01798    /* Update time on device */
01799    handle_time_date_req_message(NULL, s);
01800 
01801 /*
01802    for (l = d->lines; l; l = l->next) {
01803       if (has_voicemail(l)) {
01804          if (skinnydebug)
01805             ast_verbose("Checking for voicemail Skinny %s@%s\n", l->name, d->name);
01806          ast_app_inboxcount(l->mailbox, &new, &old);
01807          if (skinnydebug)
01808             ast_verbose("Skinny %s@%s has voicemail!\n", l->name, d->name);
01809          transmit_lamp_indication(s, STIMULUS_VOICEMAIL, l->instance, l->mwiblink?SKINNY_LAMP_BLINK:SKINNY_LAMP_ON);
01810       } else {
01811          transmit_lamp_indication(s, STIMULUS_VOICEMAIL, l->instance, SKINNY_LAMP_OFF);
01812       }
01813    }
01814 */
01815 }
01816 
01817 /* I do not believe skinny can deal with video.
01818    Anyone know differently? */
01819 /* Yes, it can.  Currently 7985 and Cisco VT Advantage do video. */
01820 static enum ast_rtp_get_result skinny_get_vrtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
01821 {
01822    struct skinny_subchannel *sub = NULL;
01823 
01824    if (!(sub = c->tech_pvt) || !(sub->vrtp))
01825       return AST_RTP_GET_FAILED;
01826 
01827    *rtp = sub->vrtp;
01828 
01829    return AST_RTP_TRY_NATIVE;
01830 }
01831 
01832 static enum ast_rtp_get_result skinny_get_rtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
01833 {
01834    struct skinny_subchannel *sub = NULL;
01835 
01836    if (!(sub = c->tech_pvt) || !(sub->rtp))
01837       return AST_RTP_GET_FAILED;
01838 
01839    *rtp = sub->rtp;
01840 
01841    return AST_RTP_TRY_NATIVE;
01842 }
01843 
01844 static int skinny_set_rtp_peer(struct ast_channel *c, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs, int nat_active)
01845 {
01846    struct skinny_subchannel *sub;
01847    sub = c->tech_pvt;
01848    if (sub) {
01849       /* transmit_modify_with_sdp(sub, rtp); @@FIXME@@ if needed */
01850       return 0;
01851    }
01852    return -1;
01853 }
01854 
01855 static struct ast_rtp_protocol skinny_rtp = {
01856    .type = "Skinny",
01857    .get_rtp_info = skinny_get_rtp_peer,
01858    .get_vrtp_info = skinny_get_vrtp_peer,
01859    .set_rtp_peer = skinny_set_rtp_peer,
01860 };
01861 
01862 static int skinny_do_debug(int fd, int argc, char *argv[])
01863 {
01864    if (argc != 3) {
01865       return RESULT_SHOWUSAGE;
01866    }
01867    skinnydebug = 1;
01868    ast_cli(fd, "Skinny Debugging Enabled\n");
01869    return RESULT_SUCCESS;
01870 }
01871 
01872 static int skinny_no_debug(int fd, int argc, char *argv[])
01873 {
01874    if (argc != 4) {
01875       return RESULT_SHOWUSAGE;
01876    }
01877    skinnydebug = 0;
01878    ast_cli(fd, "Skinny Debugging Disabled\n");
01879    return RESULT_SUCCESS;
01880 }
01881 
01882 static char *complete_skinny_reset(const char *line, const char *word, int pos, int state)
01883 {
01884    struct skinny_device *d;
01885 
01886    char *result = NULL;
01887    int wordlen = strlen(word);
01888    int which = 0;
01889 
01890    if (pos == 2) {
01891       for (d = devices; d && !result; d = d->next) {
01892          if (!strncasecmp(word, d->id, wordlen) && ++which > state)
01893             result = ast_strdup(d->id);
01894       }
01895    }
01896 
01897    return result;
01898 }
01899 
01900 static int skinny_reset_device(int fd, int argc, char *argv[])
01901 {
01902    struct skinny_device *d;
01903    struct skinny_req *req;
01904 
01905    if (argc < 3 || argc > 4) {
01906       return RESULT_SHOWUSAGE;
01907    }
01908    ast_mutex_lock(&devicelock);
01909 
01910    for (d = devices; d; d = d->next) {
01911       int fullrestart = 0;
01912       if (!strcasecmp(argv[2], d->id) || !strcasecmp(argv[2], "all")) {
01913          if (!(d->session))
01914             continue;
01915 
01916          if (!(req = req_alloc(sizeof(struct reset_message), RESET_MESSAGE)))
01917             continue;
01918 
01919          if (argc == 4 && !strcasecmp(argv[3], "restart"))
01920             fullrestart = 1;
01921 
01922          if (fullrestart)
01923             req->data.reset.resetType = 2;
01924          else
01925             req->data.reset.resetType = 1;
01926 
01927          if (option_verbose > 2)
01928             ast_verbose(VERBOSE_PREFIX_3 "%s device %s.\n", (fullrestart) ? "Restarting" : "Resetting", d->id);
01929          transmit_response(d->session, req);
01930       }
01931    }
01932    ast_mutex_unlock(&devicelock);
01933    return RESULT_SUCCESS;
01934 }
01935 
01936 static char *device2str(int type)
01937 {
01938    char *tmp;
01939 
01940    switch (type) {
01941    case SKINNY_DEVICE_NONE:
01942       return "No Device";
01943    case SKINNY_DEVICE_30SPPLUS:
01944       return "30SP Plus";
01945    case SKINNY_DEVICE_12SPPLUS:
01946       return "12SP Plus";
01947    case SKINNY_DEVICE_12SP:
01948       return "12SP";
01949    case SKINNY_DEVICE_12:
01950       return "12";
01951    case SKINNY_DEVICE_30VIP:
01952       return "30VIP";
01953    case SKINNY_DEVICE_7910:
01954       return "7910";
01955    case SKINNY_DEVICE_7960:
01956       return "7960";
01957    case SKINNY_DEVICE_7940:
01958       return "7940";
01959    case SKINNY_DEVICE_7935:
01960       return "7935";
01961    case SKINNY_DEVICE_ATA186:
01962       return "ATA186";
01963    case SKINNY_DEVICE_7941:
01964       return "7941";
01965    case SKINNY_DEVICE_7971:
01966       return "7971";
01967    case SKINNY_DEVICE_7914:
01968       return "7914";
01969    case SKINNY_DEVICE_7985:
01970       return "7985";
01971    case SKINNY_DEVICE_7911:
01972       return "7911";
01973    case SKINNY_DEVICE_7961GE:
01974       return "7961GE";
01975    case SKINNY_DEVICE_7941GE:
01976       return "7941GE";
01977    case SKINNY_DEVICE_7931:
01978       return "7931";
01979    case SKINNY_DEVICE_7921:
01980       return "7921";
01981    case SKINNY_DEVICE_7906:
01982       return "7906";
01983    case SKINNY_DEVICE_7962:
01984       return "7962";
01985    case SKINNY_DEVICE_7937:
01986       return "7937";
01987    case SKINNY_DEVICE_7942:
01988       return "7942";
01989    case SKINNY_DEVICE_7945:
01990       return "7945";
01991    case SKINNY_DEVICE_7965:
01992       return "7965";
01993    case SKINNY_DEVICE_7975:
01994       return "7975";
01995    case SKINNY_DEVICE_7905:
01996       return "7905";
01997    case SKINNY_DEVICE_7920:
01998       return "7920";
01999    case SKINNY_DEVICE_7970:
02000       return "7970";
02001    case SKINNY_DEVICE_7912:
02002       return "7912";
02003    case SKINNY_DEVICE_7902:
02004       return "7902";
02005    case SKINNY_DEVICE_CIPC:
02006       return "IP Communicator";
02007    case SKINNY_DEVICE_7961:
02008       return "7961";
02009    case SKINNY_DEVICE_7936:
02010       return "7936";
02011    case SKINNY_DEVICE_SCCPGATEWAY_AN:
02012       return "SCCPGATEWAY_AN";
02013    case SKINNY_DEVICE_SCCPGATEWAY_BRI:
02014       return "SCCPGATEWAY_BRI";
02015    case SKINNY_DEVICE_UNKNOWN:
02016       return "Unknown";
02017    default:
02018       if (!(tmp = ast_threadstorage_get(&device2str_threadbuf, DEVICE2STR_BUFSIZE)))
02019          return "Unknown";
02020       snprintf(tmp, DEVICE2STR_BUFSIZE, "UNKNOWN-%d", type);
02021       return tmp;
02022    }
02023 }
02024 
02025 static int skinny_show_devices(int fd, int argc, char *argv[])
02026 {
02027    struct skinny_device *d;
02028    struct skinny_line *l;
02029    int numlines = 0;
02030 
02031    if (argc != 3) {
02032       return RESULT_SHOWUSAGE;
02033    }
02034    ast_mutex_lock(&devicelock);
02035 
02036    ast_cli(fd, "Name                 DeviceId         IP              Type            R NL\n");
02037    ast_cli(fd, "-------------------- ---------------- --------------- --------------- - --\n");
02038    for (d = devices; d; d = d->next) {
02039       numlines = 0;
02040       for (l = d->lines; l; l = l->next) {
02041          numlines++;
02042       }
02043 
02044       ast_cli(fd, "%-20s %-16s %-15s %-15s %c %2d\n",
02045             d->name,
02046             d->id,
02047             d->session?ast_inet_ntoa(d->session->sin.sin_addr):"",
02048             device2str(d->type),
02049             d->registered?'Y':'N',
02050             numlines);
02051    }
02052    ast_mutex_unlock(&devicelock);
02053    return RESULT_SUCCESS;
02054 }
02055 
02056 static int skinny_show_lines(int fd, int argc, char *argv[])
02057 {
02058    struct skinny_device *d;
02059    struct skinny_line *l;
02060 
02061    if (argc != 3) {
02062       return RESULT_SHOWUSAGE;
02063    }
02064    ast_mutex_lock(&devicelock);
02065 
02066    ast_cli(fd, "Device Name          Instance Name                 Label               \n");
02067    ast_cli(fd, "-------------------- -------- -------------------- --------------------\n");
02068    for (d = devices; d; d = d->next) {
02069       for (l = d->lines; l; l = l->next) {
02070          ast_cli(fd, "%-20s %8d %-20s %-20s\n",
02071             d->name,
02072             l->instance,
02073             l->name,
02074             l->label);
02075       }
02076    }
02077 
02078    ast_mutex_unlock(&devicelock);
02079    return RESULT_SUCCESS;
02080 }
02081 
02082 static char show_devices_usage[] =
02083 "Usage: skinny show devices\n"
02084 "       Lists all devices known to the Skinny subsystem.\n";
02085 
02086 static char show_lines_usage[] =
02087 "Usage: skinny show lines\n"
02088 "       Lists all lines known to the Skinny subsystem.\n";
02089 
02090 static char debug_usage[] =
02091 "Usage: skinny set debug\n"
02092 "       Enables dumping of Skinny packets for debugging purposes\n";
02093 
02094 static char no_debug_usage[] =
02095 "Usage: skinny set debug off\n"
02096 "       Disables dumping of Skinny packets for debugging purposes\n";
02097 
02098 static char reset_usage[] =
02099 "Usage: skinny reset <DeviceId|all> [restart]\n"
02100 "       Causes a Skinny device to reset itself, optionally with a full restart\n";
02101 
02102 static struct ast_cli_entry cli_skinny[] = {
02103    { { "skinny", "show", "devices", NULL },
02104    skinny_show_devices, "List defined Skinny devices",
02105    show_devices_usage },
02106 
02107    { { "skinny", "show", "lines", NULL },
02108    skinny_show_lines, "List defined Skinny lines per device",
02109    show_lines_usage },
02110 
02111    { { "skinny", "set", "debug", NULL },
02112    skinny_do_debug, "Enable Skinny debugging",
02113    debug_usage },
02114 
02115    { { "skinny", "set", "debug", "off", NULL },
02116    skinny_no_debug, "Disable Skinny debugging",
02117    no_debug_usage },
02118 
02119    { { "skinny", "reset", NULL },
02120    skinny_reset_device, "Reset Skinny device(s)",
02121    reset_usage, complete_skinny_reset },
02122 };
02123 
02124 #if 0
02125 static struct skinny_paging_device *build_paging_device(const char *cat, struct ast_variable *v)
02126 {
02127    return NULL;
02128 }
02129 #endif
02130 
02131 static struct skinny_device *build_device(const char *cat, struct ast_variable *v)
02132 {
02133    struct skinny_device *d;
02134    struct skinny_line *l;
02135    struct skinny_speeddial *sd;
02136    struct skinny_addon *a;
02137    int lineInstance = 1;
02138    int speeddialInstance = 1;
02139    int y = 0;
02140 
02141    if (!(d = ast_calloc(1, sizeof(struct skinny_device)))) {
02142       return NULL;
02143    } else {
02144       ast_copy_string(d->name, cat, sizeof(d->name));
02145       d->lastlineinstance = 1;
02146       d->capability = default_capability;
02147       d->prefs = default_prefs;
02148       d->earlyrtp = 1;
02149       while(v) {
02150          if (!strcasecmp(v->name, "host")) {
02151             if (ast_get_ip(&d->addr, v->value)) {
02152                free(d);
02153                return NULL;
02154             }
02155          } else if (!strcasecmp(v->name, "port")) {
02156             d->addr.sin_port = htons(atoi(v->value));
02157          } else if (!strcasecmp(v->name, "device")) {
02158             ast_copy_string(d->id, v->value, sizeof(d->id));
02159          } else if (!strcasecmp(v->name, "permit") || !strcasecmp(v->name, "deny")) {
02160             d->ha = ast_append_ha(v->name, v->value, d->ha);
02161          } else if (!strcasecmp(v->name, "context")) {
02162             ast_copy_string(context, v->value, sizeof(context));
02163          } else if (!strcasecmp(v->name, "allow")) {
02164             ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 1);
02165          } else if (!strcasecmp(v->name, "disallow")) {
02166             ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 0);
02167          } else if (!strcasecmp(v->name, "version")) {
02168             ast_copy_string(d->version_id, v->value, sizeof(d->version_id));
02169          } else if (!strcasecmp(v->name, "earlyrtp")) {
02170             d->earlyrtp = ast_true(v->value);
02171          } else if (!strcasecmp(v->name, "nat")) {
02172             nat = ast_true(v->value);
02173          } else if (!strcasecmp(v->name, "callerid")) {
02174             if (!strcasecmp(v->value, "asreceived")) {
02175                cid_num[0] = '\0';
02176                cid_name[0] = '\0';
02177             } else {
02178                ast_callerid_split(v->value, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
02179             }
02180          } else if (!strcasecmp(v->name, "language")) {
02181             ast_copy_string(language, v->value, sizeof(language));
02182          } else if (!strcasecmp(v->name, "accountcode")) {
02183             ast_copy_string(accountcode, v->value, sizeof(accountcode));
02184          } else if (!strcasecmp(v->name, "amaflags")) {
02185             y = ast_cdr_amaflags2int(v->value);
02186             if (y < 0) {
02187                ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value, v->lineno);
02188             } else {
02189                amaflags = y;
02190             }
02191          } else if (!strcasecmp(v->name, "mohinterpret") || !strcasecmp(v->name, "musiconhold")) {
02192             ast_copy_string(mohinterpret, v->value, sizeof(mohinterpret));
02193          } else if (!strcasecmp(v->name, "mohsuggest")) {
02194             ast_copy_string(mohsuggest, v->value, sizeof(mohsuggest));
02195          } else if (!strcasecmp(v->name, "callgroup")) {
02196             cur_callergroup = ast_get_group(v->value);
02197          } else if (!strcasecmp(v->name, "pickupgroup")) {
02198             cur_pickupgroup = ast_get_group(v->value);
02199          } else if (!strcasecmp(v->name, "immediate")) {
02200             immediate = ast_true(v->value);
02201          } else if (!strcasecmp(v->name, "cancallforward")) {
02202             cancallforward = ast_true(v->value);
02203          } else if (!strcasecmp(v->name, "mailbox")) {
02204             ast_copy_string(mailbox, v->value, sizeof(mailbox));
02205          } else if (!strcasecmp(v->name, "callreturn")) {
02206             callreturn = ast_true(v->value);
02207          } else if (!strcasecmp(v->name, "callwaiting")) {
02208             callwaiting = ast_true(v->value);
02209          } else if (!strcasecmp(v->name, "transfer")) {
02210             transfer = ast_true(v->value);
02211          } else if (!strcasecmp(v->name, "threewaycalling")) {
02212             threewaycalling = ast_true(v->value);
02213          } else if (!strcasecmp(v->name, "mwiblink")) {
02214             mwiblink = ast_true(v->value);
02215          } else if (!strcasecmp(v->name, "linelabel")) {
02216             ast_copy_string(linelabel, v->value, sizeof(linelabel));
02217          } else if (!strcasecmp(v->name, "speeddial")) {
02218             if (!(sd = ast_calloc(1, sizeof(struct skinny_speeddial)))) {
02219                return NULL;
02220             } else {
02221                char *stringp, *exten, *label;
02222                stringp = v->value;
02223                exten = strsep(&stringp, ",");
02224                label = strsep(&stringp, ",");
02225                ast_mutex_init(&sd->lock);
02226                ast_copy_string(sd->exten, exten, sizeof(sd->exten));
02227                if (label)
02228                   ast_copy_string(sd->label, label, sizeof(sd->label));
02229                else
02230                   ast_copy_string(sd->label, exten, sizeof(sd->label));
02231                sd->instance = speeddialInstance++;
02232 
02233                sd->parent = d;
02234 
02235                sd->next = d->speeddials;
02236                d->speeddials = sd;
02237             }
02238          } else if (!strcasecmp(v->name, "addon")) {
02239             if (!(a = ast_calloc(1, sizeof(struct skinny_addon)))) {
02240                return NULL;
02241             } else {
02242                ast_mutex_init(&a->lock);
02243                ast_copy_string(a->type, v->value, sizeof(a->type));
02244 
02245                a->next = d->addons;
02246                d->addons = a;
02247             }
02248          } else if (!strcasecmp(v->name, "trunk") || !strcasecmp(v->name, "line")) {
02249             if (!(l = ast_calloc(1, sizeof(struct skinny_line)))) {
02250                return NULL;
02251             } else {
02252                ast_mutex_init(&l->lock);
02253                ast_copy_string(l->name, v->value, sizeof(l->name));
02254 
02255                /* XXX Should we check for uniqueness?? XXX */
02256                ast_copy_string(l->context, context, sizeof(l->context));
02257                ast_copy_string(l->cid_num, cid_num, sizeof(l->cid_num));
02258                ast_copy_string(l->cid_name, cid_name, sizeof(l->cid_name));
02259                ast_copy_string(l->label, linelabel, sizeof(l->label));
02260                ast_copy_string(l->language, language, sizeof(l->language));
02261                ast_copy_string(l->mohinterpret, mohinterpret, sizeof(l->mohinterpret));
02262                ast_copy_string(l->mohsuggest, mohsuggest, sizeof(l->mohsuggest));
02263                ast_copy_string(l->mailbox, mailbox, sizeof(l->mailbox));
02264                if (!ast_strlen_zero(mailbox)) {
02265                   if (option_verbose > 2)
02266                      ast_verbose(VERBOSE_PREFIX_3 "Setting mailbox '%s' on %s@%s\n", mailbox, d->name, l->name);
02267                }
02268                l->msgstate = -1;
02269                l->capability = d->capability;
02270                l->prefs = d->prefs;
02271                l->parent = d;
02272                if (!strcasecmp(v->name, "trunk")) {
02273                   l->type = TYPE_TRUNK;
02274                } else {
02275                   l->type = TYPE_LINE;
02276                }
02277                l->immediate = immediate;
02278                l->callgroup = cur_callergroup;
02279                l->pickupgroup = cur_pickupgroup;
02280                l->callreturn = callreturn;
02281                l->cancallforward = cancallforward;
02282                l->callwaiting = callwaiting;
02283                l->transfer = transfer;
02284                l->threewaycalling = threewaycalling;
02285                l->mwiblink = mwiblink;
02286                l->onhooktime = time(NULL);
02287                l->instance = lineInstance++;
02288                /* ASSUME we're onhook at this point */
02289                l->hookstate = SKINNY_ONHOOK;
02290                l->nat = nat;
02291 
02292                l->next = d->lines;
02293                d->lines = l;
02294             }
02295          } else {
02296             ast_log(LOG_WARNING, "Don't know keyword '%s' at line %d\n", v->name, v->lineno);
02297          }
02298          v = v->next;
02299       }
02300 
02301       if (!d->lines) {
02302          ast_log(LOG_ERROR, "A Skinny device must have at least one line!\n");
02303          return NULL;
02304       }
02305       if (/*d->addr.sin_addr.s_addr && */!ntohs(d->addr.sin_port)) {
02306          d->addr.sin_port = htons(DEFAULT_SKINNY_PORT);
02307       }
02308 #if 0
02309       /* I don't think we need this anymore at all, since d->ourip is set in skinny_register now */
02310       if (d->addr.sin_addr.s_addr) {
02311          /* XXX See note above, in 'host' option. */
02312          if (ast_ouraddrfor(&d->addr.sin_addr, &d->ourip)) {
02313             d->ourip = __ourip;
02314          }
02315       } else {
02316          d->ourip = __ourip;
02317       }
02318 #endif
02319    }
02320    return d;
02321 }
02322 
02323 static void start_rtp(struct skinny_subchannel *sub)
02324 {
02325    struct skinny_line *l = sub->parent;
02326    struct skinny_device *d = l->parent;
02327    int hasvideo = 0;
02328 
02329    ast_mutex_lock(&sub->lock);
02330    /* Allocate the RTP */
02331    sub->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
02332    if (hasvideo)
02333       sub->vrtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
02334    
02335    if (sub->rtp && sub->owner) {
02336       sub->owner->fds[0] = ast_rtp_fd(sub->rtp);
02337       sub->owner->fds[1] = ast_rtcp_fd(sub->rtp);
02338    }
02339    if (hasvideo && sub->vrtp && sub->owner) {
02340       sub->owner->fds[2] = ast_rtp_fd(sub->vrtp);
02341       sub->owner->fds[3] = ast_rtcp_fd(sub->vrtp);
02342    }
02343    if (sub->rtp) {
02344       ast_rtp_setnat(sub->rtp, l->nat);
02345    }
02346    if (sub->vrtp) {
02347       ast_rtp_setnat(sub->vrtp, l->nat);
02348    }
02349    /* Set Frame packetization */
02350    if (sub->rtp)
02351       ast_rtp_codec_setpref(sub->rtp, &l->prefs);
02352 
02353    /* Create the RTP connection */
02354    transmit_connect(d->session, sub);
02355    ast_mutex_unlock(&sub->lock);
02356 }
02357 
02358 static void *skinny_newcall(void *data)
02359 {
02360    struct ast_channel *c = data;
02361    struct skinny_subchannel *sub = c->tech_pvt;
02362    struct skinny_line *l = sub->parent;
02363    struct skinny_device *d = l->parent;
02364    struct skinnysession *s = d->session;
02365    int res = 0;
02366 
02367    ast_copy_string(l->lastnumberdialed, c->exten, sizeof(l->lastnumberdialed));
02368    ast_set_callerid(c,
02369       l->hidecallerid ? "" : l->cid_num,
02370       l->hidecallerid ? "" : l->cid_name,
02371       c->cid.cid_ani ? NULL : l->cid_num);
02372    ast_setstate(c, AST_STATE_RING);
02373    if (!sub->rtp) {
02374       start_rtp(sub);
02375    }
02376    res = ast_pbx_run(c);
02377    if (res) {
02378       ast_log(LOG_WARNING, "PBX exited non-zero\n");
02379       transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02380    }
02381    return NULL;
02382 }
02383 
02384 static void *skinny_ss(void *data)
02385 {
02386    struct ast_channel *c = data;
02387    struct skinny_subchannel *sub = c->tech_pvt;
02388    struct skinny_line *l = sub->parent;
02389    struct skinny_device *d = l->parent;
02390    struct skinnysession *s = d->session;
02391    int len = 0;
02392    int timeout = firstdigittimeout;
02393    int res = 0;
02394    int getforward=0;
02395    int loop_pause = 100;
02396 
02397    if (option_verbose > 2)
02398       ast_verbose( VERBOSE_PREFIX_3 "Starting simple switch on '%s@%s'\n", l->name, d->name);
02399    len = strlen(d->exten);
02400 
02401    while (len < AST_MAX_EXTENSION-1) {
02402 
02403       res = 1;  /* Assume we will get a digit */
02404       while (strlen(d->exten) == len) {
02405          ast_safe_sleep(c, loop_pause);
02406          timeout -= loop_pause;
02407          if (timeout <= 0){
02408             res = 0;
02409             break;
02410          }
02411       }
02412 
02413       len = strlen(d->exten);
02414 
02415       if (!ast_ignore_pattern(c->context, d->exten)) {
02416          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02417       }
02418 
02419       if (ast_exists_extension(c, c->context, d->exten, 1, l->cid_num)) {
02420          if (!res || !ast_matchmore_extension(c, c->context, d->exten, 1, l->cid_num)) {
02421             if (getforward) {
02422                /* Record this as the forwarding extension */
02423                ast_copy_string(l->call_forward, d->exten, sizeof(l->call_forward));
02424                if (option_verbose > 2)
02425                   ast_verbose(VERBOSE_PREFIX_3 "Setting call forward to '%s' on channel %s\n",
02426                      l->call_forward, c->name);
02427                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
02428                if (res) {
02429                   break;
02430                }
02431                ast_safe_sleep(c, 500);
02432                ast_indicate(c, -1);
02433                ast_safe_sleep(c, 1000);
02434                memset(d->exten, 0, sizeof(d->exten));
02435                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
02436                len = 0;
02437                getforward = 0;
02438             } else {
02439                ast_copy_string(c->exten, d->exten, sizeof(c->exten));
02440                ast_copy_string(l->lastnumberdialed, d->exten, sizeof(l->lastnumberdialed));
02441                memset (d->exten, 0, sizeof(d->exten));
02442                skinny_newcall(c);
02443                return NULL;
02444             }
02445          } else {
02446             /* It's a match, but they just typed a digit, and there is an ambiguous match,
02447                so just set the timeout to matchdigittimeout and wait some more */
02448             timeout = matchdigittimeout;
02449          }
02450       } else if (res == 0) {
02451          ast_log(LOG_DEBUG, "Not enough digits (and no ambiguous match)...\n");
02452          memset(d->exten, 0, sizeof(d->exten));
02453          transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02454          if (sub->owner && sub->owner->_state != AST_STATE_UP) {
02455             ast_indicate(c, -1);
02456             ast_hangup(c);
02457          }
02458          return NULL;
02459       } else if (!ast_canmatch_extension(c, c->context, d->exten, 1, c->cid.cid_num) &&
02460             ((d->exten[0] != '*') || (!ast_strlen_zero(d->exten) > 2))) {
02461          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);
02462          memset(d->exten, 0, sizeof(d->exten));
02463          transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02464          /* hang out for 3 seconds to let congestion play */
02465          ast_safe_sleep(c, 3000);
02466          break;
02467       }
02468       if (!timeout) {
02469          timeout = gendigittimeout;
02470       }
02471       if (len && !ast_ignore_pattern(c->context, d->exten)) {
02472          ast_indicate(c, -1);
02473       }
02474    }
02475    if (c)
02476       ast_hangup(c);
02477 
02478    memset(d->exten, 0, sizeof(d->exten));
02479    return NULL;
02480 }
02481 
02482 
02483 
02484 static int skinny_call(struct ast_channel *ast, char *dest, int timeout)
02485 {
02486    int res = 0;
02487    int tone = 0;
02488    struct skinny_subchannel *sub = ast->tech_pvt;
02489    struct skinny_line *l = sub->parent;
02490    struct skinny_device *d = l->parent;
02491    struct skinnysession *s = d->session;
02492 
02493    if (!d->registered) {
02494       ast_log(LOG_ERROR, "Device not registered, cannot call %s\n", dest);
02495       return -1;
02496    }
02497 
02498    if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
02499       ast_log(LOG_WARNING, "skinny_call called on %s, neither down nor reserved\n", ast->name);
02500       return -1;
02501    }
02502 
02503    if (skinnydebug)
02504       ast_verbose(VERBOSE_PREFIX_3 "skinny_call(%s)\n", ast->name);
02505 
02506    if (l->dnd) {
02507       ast_queue_control(ast, AST_CONTROL_BUSY);
02508       return -1;
02509    }
02510 
02511    switch (l->hookstate) {
02512    case SKINNY_OFFHOOK:
02513       tone = SKINNY_CALLWAITTONE;
02514       break;
02515    case SKINNY_ONHOOK:
02516       tone = SKINNY_ALERT;
02517       break;
02518    default:
02519       ast_log(LOG_ERROR, "Don't know how to deal with hookstate %d\n", l->hookstate);
02520       break;
02521    }
02522 
02523    transmit_callstate(s, l->instance, SKINNY_RINGIN, sub->callid);
02524    transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGIN);
02525    transmit_displaypromptstatus(s, "Ring-In", 0, l->instance, sub->callid);
02526    transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, l->cid_name, l->cid_num, l->instance, sub->callid, 1);
02527    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
02528    transmit_ringer_mode(s, SKINNY_RING_INSIDE);
02529 
02530    ast_setstate(ast, AST_STATE_RINGING);
02531    ast_queue_control(ast, AST_CONTROL_RINGING);
02532    sub->outgoing = 1;
02533    return res;
02534 }
02535 
02536 static int skinny_hangup(struct ast_channel *ast)
02537 {
02538    struct skinny_subchannel *sub = ast->tech_pvt;
02539    struct skinny_line *l;
02540    struct skinny_device *d;
02541    struct skinnysession *s;
02542 
02543    if (!sub) {
02544       ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n");
02545       return 0;
02546    }
02547    l = sub->parent;
02548    d = l->parent;
02549    s = d->session;
02550    if (skinnydebug)
02551       ast_verbose("skinny_hangup(%s) on %s@%s\n", ast->name, l->name, d->name);
02552 
02553    if (d->registered) {
02554       if ((l->type = TYPE_LINE) && (l->hookstate == SKINNY_OFFHOOK)) {
02555          l->hookstate = SKINNY_ONHOOK;
02556          transmit_callstate(s, l->instance, SKINNY_ONHOOK, sub->callid);
02557          transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_OFF);
02558          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
02559       } else if ((l->type = TYPE_LINE) && (l->hookstate == SKINNY_ONHOOK)) {
02560          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02561          transmit_callstate(s, l->instance, SKINNY_ONHOOK, sub->callid);
02562          transmit_ringer_mode(s, SKINNY_RING_OFF);
02563          transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_OFF);
02564          do_housekeeping(s);
02565       }
02566    }
02567    ast_mutex_lock(&sub->lock);
02568    sub->owner = NULL;
02569    ast->tech_pvt = NULL;
02570    sub->alreadygone = 0;
02571    sub->outgoing = 0;
02572    if (sub->rtp) {
02573       ast_rtp_destroy(sub->rtp);
02574       sub->rtp = NULL;
02575    }
02576    ast_mutex_unlock(&sub->lock);
02577    return 0;
02578 }
02579 
02580 static int skinny_answer(struct ast_channel *ast)
02581 {
02582    int res = 0;
02583    struct skinny_subchannel *sub = ast->tech_pvt;
02584    struct skinny_line *l = sub->parent;
02585    struct skinny_device *d = l->parent;
02586    struct skinnysession *s = d->session;
02587    char exten[AST_MAX_EXTENSION] = "";
02588 
02589    ast_copy_string(exten, S_OR(ast->macroexten, ast->exten), sizeof(exten));
02590 
02591    sub->cxmode = SKINNY_CX_SENDRECV;
02592    if (!sub->rtp) {
02593       start_rtp(sub);
02594    }
02595    if (skinnydebug)
02596       ast_verbose("skinny_answer(%s) on %s@%s-%d\n", ast->name, l->name, d->name, sub->callid);
02597    if (ast->_state != AST_STATE_UP) {
02598       ast_setstate(ast, AST_STATE_UP);
02599    }
02600 
02601    transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02602    /* order matters here...
02603       for some reason, transmit_callinfo must be before transmit_callstate,
02604       or you won't get keypad messages in some situations. */
02605    transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2);
02606    transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
02607    transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
02608    transmit_dialednumber(s, exten, l->instance, sub->callid);
02609    transmit_displaypromptstatus(s, "Connected", 0, l->instance, sub->callid);
02610    return res;
02611 }
02612 
02613 /* Retrieve audio/etc from channel.  Assumes sub->lock is already held. */
02614 static struct ast_frame *skinny_rtp_read(struct skinny_subchannel *sub)
02615 {
02616    struct ast_channel *ast = sub->owner;
02617    struct ast_frame *f;
02618 
02619    if (!sub->rtp) {
02620       /* We have no RTP allocated for this channel */
02621       return &ast_null_frame;
02622    }
02623 
02624    switch(ast->fdno) {
02625    case 0:
02626       f = ast_rtp_read(sub->rtp);   /* RTP Audio */
02627       break;
02628    case 1:
02629       f = ast_rtcp_read(sub->rtp);  /* RTCP Control Channel */
02630       break;
02631    case 2:
02632       f = ast_rtp_read(sub->vrtp);  /* RTP Video */
02633       break;
02634    case 3:
02635       f = ast_rtcp_read(sub->vrtp); /* RTCP Control Channel for video */
02636       break;
02637 #if 0
02638    case 5:
02639       /* Not yet supported */
02640       f = ast_udptl_read(sub->udptl);  /* UDPTL for T.38 */
02641       break;
02642 #endif
02643    default:
02644       f = &ast_null_frame;
02645    }
02646 
02647    if (ast) {
02648       /* We already hold the channel lock */
02649       if (f->frametype == AST_FRAME_VOICE) {
02650          if (f->subclass != ast->nativeformats) {
02651             ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass);
02652             ast->nativeformats = f->subclass;
02653             ast_set_read_format(ast, ast->readformat);
02654             ast_set_write_format(ast, ast->writeformat);
02655          }
02656       }
02657    }
02658    return f;
02659 }
02660 
02661 static struct ast_frame *skinny_read(struct ast_channel *ast)
02662 {
02663    struct ast_frame *fr;
02664    struct skinny_subchannel *sub = ast->tech_pvt;
02665    ast_mutex_lock(&sub->lock);
02666    fr = skinny_rtp_read(sub);
02667    ast_mutex_unlock(&sub->lock);
02668    return fr;
02669 }
02670 
02671 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame)
02672 {
02673    struct skinny_subchannel *sub = ast->tech_pvt;
02674    int res = 0;
02675    if (frame->frametype != AST_FRAME_VOICE) {
02676       if (frame->frametype == AST_FRAME_IMAGE) {
02677          return 0;
02678       } else {
02679          ast_log(LOG_WARNING, "Can't send %d type frames with skinny_write\n", frame->frametype);
02680          return 0;
02681       }
02682    } else {
02683       if (!(frame->subclass & ast->nativeformats)) {
02684          ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
02685             frame->subclass, ast->nativeformats, ast->readformat, ast->writeformat);
02686          return -1;
02687       }
02688    }
02689    if (sub) {
02690       ast_mutex_lock(&sub->lock);
02691       if (sub->rtp) {
02692          res = ast_rtp_write(sub->rtp, frame);
02693       }
02694       ast_mutex_unlock(&sub->lock);
02695    }
02696    return res;
02697 }
02698 
02699 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
02700 {
02701    struct skinny_subchannel *sub = newchan->tech_pvt;
02702    ast_log(LOG_NOTICE, "skinny_fixup(%s, %s)\n", oldchan->name, newchan->name);
02703    if (sub->owner != oldchan) {
02704       ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, sub->owner);
02705       return -1;
02706    }
02707    sub->owner = newchan;
02708    return 0;
02709 }
02710 
02711 static int skinny_senddigit_begin(struct ast_channel *ast, char digit)
02712 {
02713    return -1; /* Start inband indications */
02714 }
02715 
02716 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration)
02717 {
02718 #if 0
02719    struct skinny_subchannel *sub = ast->tech_pvt;
02720    struct skinny_line *l = sub->parent;
02721    struct skinny_device *d = l->parent;
02722    int tmp;
02723    /* not right */
02724    sprintf(tmp, "%d", digit);
02725    transmit_tone(d->session, digit, l->instance, sub->callid);
02726 #endif
02727    return -1; /* Stop inband indications */
02728 }
02729 
02730 static char *control2str(int ind) {
02731    char *tmp;
02732 
02733    switch (ind) {
02734    case AST_CONTROL_HANGUP:
02735       return "Other end has hungup";
02736    case AST_CONTROL_RING:
02737       return "Local ring";
02738    case AST_CONTROL_RINGING:
02739       return "Remote end is ringing";
02740    case AST_CONTROL_ANSWER:
02741       return "Remote end has answered";
02742    case AST_CONTROL_BUSY:
02743       return "Remote end is busy";
02744    case AST_CONTROL_TAKEOFFHOOK:
02745       return "Make it go off hook";
02746    case AST_CONTROL_OFFHOOK:
02747       return "Line is off hook";
02748    case AST_CONTROL_CONGESTION:
02749       return "Congestion (circuits busy)";
02750    case AST_CONTROL_FLASH:
02751       return "Flash hook";
02752    case AST_CONTROL_WINK:
02753       return "Wink";
02754    case AST_CONTROL_OPTION:
02755       return "Set a low-level option";
02756    case AST_CONTROL_RADIO_KEY:
02757       return "Key Radio";
02758    case AST_CONTROL_RADIO_UNKEY:
02759       return "Un-Key Radio";
02760    case AST_CONTROL_PROGRESS:
02761       return "Remote end is making Progress";
02762    case AST_CONTROL_PROCEEDING:
02763       return "Remote end is proceeding";
02764    case AST_CONTROL_HOLD:
02765       return "Hold";
02766    case AST_CONTROL_UNHOLD:
02767       return "Unhold";
02768    case -1:
02769       return "Stop tone";
02770    default:
02771       if (!(tmp = ast_threadstorage_get(&control2str_threadbuf, CONTROL2STR_BUFSIZE)))
02772                         return "Unknown";
02773       snprintf(tmp, CONTROL2STR_BUFSIZE, "UNKNOWN-%d", ind);
02774       return tmp;
02775    }
02776 }
02777 
02778 
02779 static int skinny_indicate(struct ast_channel *ast, int ind, const void *data, size_t datalen)
02780 {
02781    struct skinny_subchannel *sub = ast->tech_pvt;
02782    struct skinny_line *l = sub->parent;
02783    struct skinny_device *d = l->parent;
02784    struct skinnysession *s = d->session;
02785    char exten[AST_MAX_EXTENSION] = "";
02786 
02787    if (!s) {
02788       ast_log(LOG_NOTICE, "Asked to indicate '%s' condition on channel %s, but session does not exist.\n", control2str(ind), ast->name);
02789       return -1;
02790    }
02791 
02792    ast_copy_string(exten, S_OR(ast->macroexten, ast->exten), sizeof(exten));
02793 
02794    if (skinnydebug)
02795       ast_verbose(VERBOSE_PREFIX_3 "Asked to indicate '%s' condition on channel %s\n", control2str(ind), ast->name);
02796    switch(ind) {
02797    case AST_CONTROL_RINGING:
02798       if (ast->_state != AST_STATE_UP) {
02799          if (!sub->progress) {
02800             if (!d->earlyrtp) {
02801                transmit_tone(s, SKINNY_ALERT, l->instance, sub->callid);
02802             }
02803             transmit_callstate(s, l->instance, SKINNY_RINGOUT, sub->callid);
02804             transmit_dialednumber(s, exten, l->instance, sub->callid);
02805             transmit_displaypromptstatus(s, "Ring Out", 0, l->instance, sub->callid);
02806             transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2); /* 2 = outgoing from phone */
02807             sub->ringing = 1;
02808             if (!d->earlyrtp) {
02809                break;
02810             }
02811          }
02812       }
02813       return -1; /* Tell asterisk to provide inband signalling */
02814    case AST_CONTROL_BUSY:
02815       if (ast->_state != AST_STATE_UP) {
02816          if (!d->earlyrtp) {
02817             transmit_tone(s, SKINNY_BUSYTONE, l->instance, sub->callid);
02818          }
02819          transmit_callstate(s, l->instance, SKINNY_BUSY, sub->callid);
02820          sub->alreadygone = 1;
02821          ast_softhangup_nolock(ast, AST_SOFTHANGUP_DEV);
02822          if (!d->earlyrtp) {
02823             break;
02824          }
02825       }
02826       return -1; /* Tell asterisk to provide inband signalling */
02827    case AST_CONTROL_CONGESTION:
02828       if (ast->_state != AST_STATE_UP) {
02829          if (!d->earlyrtp) {
02830             transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02831          }
02832          transmit_callstate(s, l->instance, SKINNY_CONGESTION, sub->callid);
02833          sub->alreadygone = 1;
02834          ast_softhangup_nolock(ast, AST_SOFTHANGUP_DEV);
02835          if (!d->earlyrtp) {
02836             break;
02837          }
02838       }
02839       return -1; /* Tell asterisk to provide inband signalling */
02840    case AST_CONTROL_PROGRESS:
02841       if ((ast->_state != AST_STATE_UP) && !sub->progress && !sub->outgoing) {
02842          if (!d->earlyrtp) {
02843             transmit_tone(s, SKINNY_ALERT, l->instance, sub->callid);
02844          }
02845          transmit_callstate(s, l->instance, SKINNY_PROGRESS, sub->callid);
02846          transmit_displaypromptstatus(s, "Call Progress", 0, l->instance, sub->callid);
02847          transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2); /* 2 = outgoing from phone */
02848          sub->progress = 1;
02849          if (!d->earlyrtp) {
02850             break;
02851          }
02852       }
02853       return -1; /* Tell asterisk to provide inband signalling */
02854    case -1:  /* STOP_TONE */
02855       transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02856       break;
02857    case AST_CONTROL_HOLD:
02858       ast_moh_start(ast, data, l->mohinterpret);
02859       break;
02860    case AST_CONTROL_UNHOLD:
02861       ast_moh_stop(ast);
02862       break;
02863    case AST_CONTROL_PROCEEDING:
02864       break;
02865    case AST_CONTROL_SRCUPDATE:
02866       if (sub->rtp) {
02867          ast_rtp_new_source(sub->rtp);
02868       }
02869       break;
02870    default:
02871       ast_log(LOG_WARNING, "Don't know how to indicate condition %d\n", ind);
02872       return -1; /* Tell asterisk to provide inband signalling */
02873    }
02874    return 0;
02875 }
02876 
02877 static struct ast_channel *skinny_new(struct skinny_line *l, int state)
02878 {
02879    struct ast_channel *tmp;
02880    struct skinny_subchannel *sub;
02881    struct skinny_device *d = l->parent;
02882    int fmt;
02883 
02884    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);
02885    if (!tmp) {
02886       ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
02887       return NULL;
02888    } else {
02889       sub = ast_calloc(1, sizeof(struct skinny_subchannel));
02890       if (!sub) {
02891          ast_log(LOG_WARNING, "Unable to allocate Skinny subchannel\n");
02892          return NULL;
02893       } else {
02894          ast_mutex_init(&sub->lock);
02895 
02896          sub->owner = tmp;
02897          sub->callid = callnums++;
02898          d->lastlineinstance = l->instance;
02899          d->lastcallreference = sub->callid;
02900          sub->cxmode = SKINNY_CX_INACTIVE;
02901          sub->nat = l->nat;
02902          sub->parent = l;
02903          sub->onhold = 0;
02904 
02905          sub->next = l->sub;
02906          l->sub = sub;
02907       }
02908       tmp->tech = &skinny_tech;
02909       tmp->tech_pvt = sub;
02910       tmp->nativeformats = l->capability;
02911       if (!tmp->nativeformats)
02912          tmp->nativeformats = default_capability;
02913       fmt = ast_best_codec(tmp->nativeformats);
02914       if (skinnydebug)
02915          ast_verbose("skinny_new: tmp->nativeformats=%d fmt=%d\n", tmp->nativeformats, fmt);
02916       if (sub->rtp) {
02917          tmp->fds[0] = ast_rtp_fd(sub->rtp);
02918       }
02919       if (state == AST_STATE_RING) {
02920          tmp->rings = 1;
02921       }
02922       tmp->writeformat = fmt;
02923       tmp->rawwriteformat = fmt;
02924       tmp->readformat = fmt;
02925       tmp->rawreadformat = fmt;
02926       if (!ast_strlen_zero(l->language))
02927          ast_string_field_set(tmp, language, l->language);
02928       if (!ast_strlen_zero(l->accountcode))
02929          ast_string_field_set(tmp, accountcode, l->accountcode);
02930       if (l->amaflags)
02931          tmp->amaflags = l->amaflags;
02932 
02933       ast_module_ref(ast_module_info->self);
02934       tmp->callgroup = l->callgroup;
02935       tmp->pickupgroup = l->pickupgroup;
02936       ast_string_field_set(tmp, call_forward, l->call_forward);
02937       ast_copy_string(tmp->context, l->context, sizeof(tmp->context));
02938       ast_copy_string(tmp->exten, l->exten, sizeof(tmp->exten));
02939 
02940       /* Don't use ast_set_callerid() here because it will
02941        * generate a needless NewCallerID event */
02942       tmp->cid.cid_ani = ast_strdup(l->cid_num);
02943 
02944       tmp->priority = 1;
02945       tmp->adsicpe = AST_ADSI_UNAVAILABLE;
02946 
02947       if (sub->rtp)
02948          ast_jb_configure(tmp, &global_jbconf);
02949 
02950       if (state != AST_STATE_DOWN) {
02951          if (ast_pbx_start(tmp)) {
02952             ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
02953             ast_hangup(tmp);
02954             tmp = NULL;
02955          }
02956       }
02957    }
02958    return tmp;
02959 }
02960 
02961 static int skinny_hold(struct skinny_subchannel *sub)
02962 {
02963    struct skinny_line *l = sub->parent;
02964    struct skinny_device *d = l->parent;
02965    struct skinnysession *s = d->session;
02966    struct skinny_req *req;
02967 
02968    /* Don't try to hold a channel that doesn't exist */
02969    if (!sub || !sub->owner)
02970       return 0;
02971 
02972    /* Channel needs to be put on hold */
02973    if (skinnydebug)
02974       ast_verbose("Putting on Hold(%d)\n", l->instance);
02975 
02976    ast_queue_control_data(sub->owner, AST_CONTROL_HOLD,
02977       S_OR(l->mohsuggest, NULL),
02978       !ast_strlen_zero(l->mohsuggest) ? strlen(l->mohsuggest) + 1 : 0);
02979 
02980    if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
02981       return 0;
02982 
02983    req->data.activatecallplane.lineInstance = htolel(l->instance);
02984    transmit_response(s, req);
02985 
02986    if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
02987       return 0;
02988 
02989    req->data.closereceivechannel.conferenceId = htolel(sub->callid);
02990    req->data.closereceivechannel.partyId = htolel(sub->callid);
02991    transmit_response(s, req);
02992 
02993    if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
02994       return 0;
02995 
02996    req->data.stopmedia.conferenceId = htolel(sub->callid);
02997    req->data.stopmedia.passThruPartyId = htolel(sub->callid);
02998    transmit_response(s, req);
02999 
03000    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
03001    sub->onhold = 1;
03002    return 1;
03003 }
03004 
03005 static int skinny_unhold(struct skinny_subchannel *sub)
03006 {
03007    struct skinny_line *l = sub->parent;
03008    struct skinny_device *d = l->parent;
03009    struct skinnysession *s = d->session;
03010    struct skinny_req *req;
03011 
03012    /* Don't try to unhold a channel that doesn't exist */
03013    if (!sub || !sub->owner)
03014       return 0;
03015 
03016    /* Channel is on hold, so we will unhold */
03017    if (skinnydebug)
03018       ast_verbose("Taking off Hold(%d)\n", l->instance);
03019 
03020    ast_queue_control(sub->owner, AST_CONTROL_UNHOLD);
03021 
03022    if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
03023       return 0;
03024 
03025    req->data.activatecallplane.lineInstance = htolel(l->instance);
03026    transmit_response(s, req);
03027 
03028    transmit_connect(s, sub);
03029    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
03030    sub->onhold = 0;
03031    return 1;
03032 }
03033 
03034 static int handle_keep_alive_message(struct skinny_req *req, struct skinnysession *s)
03035 {
03036    if (!(req = req_alloc(0, KEEP_ALIVE_ACK_MESSAGE)))
03037       return -1;
03038 
03039    transmit_response(s, req);
03040    do_housekeeping(s);
03041    return 1;
03042 }
03043 
03044 static int handle_register_message(struct skinny_req *req, struct skinnysession *s)
03045 {
03046    char name[16];
03047    int res;
03048 
03049    memcpy(&name, req->data.reg.name, sizeof(name));
03050 
03051    res = skinny_register(req, s);
03052    if (!res) {
03053       ast_log(LOG_ERROR, "Rejecting Device %s: Device not found\n", name);
03054       if (!(req = req_alloc(sizeof(struct register_rej_message), REGISTER_REJ_MESSAGE)))
03055          return -1;
03056 
03057       snprintf(req->data.regrej.errMsg, sizeof(req->data.regrej.errMsg), "No Authority: %s", name);
03058       transmit_response(s, req);
03059       return 0;
03060    }
03061    if (option_verbose > 2)
03062       ast_verbose(VERBOSE_PREFIX_3 "Device '%s' successfully registered\n", name);
03063 
03064    if (!(req = req_alloc(sizeof(struct register_ack_message), REGISTER_ACK_MESSAGE)))
03065       return -1;
03066 
03067    req->data.regack.res[0] = '0';
03068    req->data.regack.res[1] = '\0';
03069    req->data.regack.keepAlive = htolel(keep_alive);
03070    memcpy(req->data.regack.dateTemplate, date_format, sizeof(req->data.regack.dateTemplate));
03071    req->data.regack.res2[0] = '0';
03072    req->data.regack.res2[1] = '\0';
03073    req->data.regack.secondaryKeepAlive = htolel(keep_alive);
03074    transmit_response(s, req);
03075    if (skinnydebug)
03076       ast_verbose("Requesting capabilities\n");
03077 
03078    if (!(req = req_alloc(0, CAPABILITIES_REQ_MESSAGE)))
03079       return -1;
03080 
03081    transmit_response(s, req);
03082 
03083    return res;
03084 }
03085 
03086 static int handle_ip_port_message(struct skinny_req *req, struct skinnysession *s)
03087 {
03088    /* no response necessary */
03089    return 1;
03090 }
03091 
03092 static int handle_keypad_button_message(struct skinny_req *req, struct skinnysession *s)
03093 {
03094    struct skinny_subchannel *sub = NULL;
03095    struct skinny_line *l;
03096    struct skinny_device *d = s->device;
03097    struct ast_frame f = { 0, };
03098    char dgt;
03099    int digit;
03100    int lineInstance;
03101    int callReference;
03102 
03103    digit = letohl(req->data.keypad.button);
03104    lineInstance = letohl(req->data.keypad.lineInstance);
03105    callReference = letohl(req->data.keypad.callReference);
03106 
03107    if (digit == 14) {
03108       dgt = '*';
03109    } else if (digit == 15) {
03110       dgt = '#';
03111    } else if (digit >= 0 && digit <= 9) {
03112       dgt = '0' + digit;
03113    } else {
03114       /* digit=10-13 (A,B,C,D ?), or
03115        * digit is bad value
03116        *
03117        * probably should not end up here, but set
03118        * value for backward compatibility, and log
03119        * a warning.
03120        */
03121       dgt = '0' + digit;
03122       ast_log(LOG_WARNING, "Unsupported digit %d\n", digit);
03123    }
03124 
03125    f.subclass = dgt;
03126 
03127    f.src = "skinny";
03128 
03129    if (lineInstance && callReference)
03130       sub = find_subchannel_by_instance_reference(d, lineInstance, callReference);
03131    else
03132       sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03133 
03134    if (!sub)
03135       return 0;
03136 
03137    l = sub->parent;
03138    if (sub->owner) {
03139       if (sub->owner->_state == 0) {
03140          f.frametype = AST_FRAME_DTMF_BEGIN;
03141          ast_queue_frame(sub->owner, &f);
03142       }
03143       /* XXX MUST queue this frame to all lines in threeway call if threeway call is active */
03144       f.frametype = AST_FRAME_DTMF_END;
03145       ast_queue_frame(sub->owner, &f);
03146       /* XXX This seriously needs to be fixed */
03147       if (sub->next && sub->next->owner) {
03148          if (sub->owner->_state == 0) {
03149             f.frametype = AST_FRAME_DTMF_BEGIN;
03150             ast_queue_frame(sub->next->owner, &f);
03151          }
03152          f.frametype = AST_FRAME_DTMF_END;
03153          ast_queue_frame(sub->next->owner, &f);
03154       }
03155    } else {
03156       if (skinnydebug)
03157          ast_verbose("No owner: %s\n", l->name);
03158    }
03159    return 1;
03160 }
03161 
03162 static int handle_stimulus_message(struct skinny_req *req, struct skinnysession *s)
03163 {
03164    struct skinny_device *d = s->device;
03165    struct skinny_line *l;
03166    struct skinny_subchannel *sub;
03167    /*struct skinny_speeddial *sd;*/
03168    struct ast_channel *c;
03169    pthread_t t;
03170    int event;
03171    int instance;
03172    int callreference;
03173    /*int res = 0;*/
03174 
03175    event = letohl(req->data.stimulus.stimulus);
03176    instance = letohl(req->data.stimulus.stimulusInstance);
03177    callreference = letohl(req->data.stimulus.callreference); 
03178    if (skinnydebug)
03179       ast_verbose("callreference in handle_stimulus_message is '%d'\n", callreference);
03180 
03181    /*  Note that this call should be using the passed in instance and callreference */
03182    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03183 
03184    if (!sub) {
03185       l = find_line_by_instance(d, d->lastlineinstance);
03186       if (!l) {
03187          return 0;
03188       }
03189    } else {
03190       l = sub->parent;
03191    }
03192 
03193    switch(event) {
03194    case STIMULUS_REDIAL:
03195       if (skinnydebug)
03196          ast_verbose("Received Stimulus: Redial(%d/%d)\n", instance, callreference);
03197 
03198 #if 0
03199       if (ast_strlen_zero(l->lastnumberdialed)) {
03200          ast_log(LOG_WARNING, "Attempted redial, but no previously dialed number found.\n");
03201          l->hookstate = SKINNY_ONHOOK;
03202          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
03203          transmit_callstate(s, l->instance, SKINNY_ONHOOK, instance);
03204          break;
03205       }
03206 
03207       c = skinny_new(l, AST_STATE_DOWN);
03208       if(!c) {
03209          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03210       } else {
03211          sub = c->tech_pvt;
03212          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03213          if (skinnydebug)
03214             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03215          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03216          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03217          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
03218 
03219          if (!ast_ignore_pattern(c->context, l->lastnumberdialed)) {
03220             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03221          }
03222          ast_copy_string(c->exten, l->lastnumberdialed, sizeof(c->exten));
03223          if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
03224             ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
03225             ast_hangup(c);
03226          }
03227       }
03228 #endif
03229       break;
03230    case STIMULUS_SPEEDDIAL:
03231       if (skinnydebug)
03232          ast_verbose("Received Stimulus: SpeedDial(%d/%d)\n", instance, callreference);
03233 
03234 #if 0
03235       if (!(sd = find_speeddial_by_instance(d, instance))) {
03236          return 0;
03237       }
03238 
03239       if (ast_strlen_zero(l->lastnumberdialed)) {
03240          ast_log(LOG_WARNING, "Attempted redial, but no previously dialed number found.\n");
03241          l->hookstate = SKINNY_ONHOOK;
03242          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
03243          transmit_callstate(s, l->instance, SKINNY_ONHOOK, instance);
03244          break;
03245       }
03246 
03247       c = skinny_new(l, AST_STATE_DOWN);
03248       if(c) {
03249          sub = c->tech_pvt;
03250          l = sub->parent;
03251          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03252          if (skinnydebug)
03253             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03254          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03255          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03256          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
03257 
03258          if (!ast_ignore_pattern(c->context, sd->exten)) {
03259             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03260          }
03261          if (ast_exists_extension(c, c->context, sd->exten, 1, l->cid_num)) {
03262             if (!ast_matchmore_extension(c, c->context, sd->exten, 1, l->cid_num)) {
03263                ast_copy_string(c->exten, sd->exten, sizeof(c->exten));
03264                ast_copy_string(l->lastnumberdialed, sd->exten, sizeof(l->lastnumberdialed));
03265                skinny_newcall(c);
03266                break;
03267             }
03268          }
03269       } else {
03270          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03271       }
03272 #endif
03273       break;
03274    case STIMULUS_HOLD:
03275       if (skinnydebug)
03276          ast_verbose("Received Stimulus: Hold(%d/%d)\n", instance, callreference);
03277 
03278       if (!sub)
03279          break;
03280 
03281       if (sub->onhold) {
03282          skinny_unhold(sub);
03283       } else {
03284          skinny_hold(sub);
03285       }
03286       break;
03287    case STIMULUS_TRANSFER:
03288       if (skinnydebug)
03289          ast_verbose("Received Stimulus: Transfer(%d/%d)\n", instance, callreference);
03290       /* XXX figure out how to transfer */
03291       break;
03292    case STIMULUS_CONFERENCE:
03293       if (skinnydebug)
03294          ast_verbose("Received Stimulus: Conference(%d/%d)\n", instance, callreference);
03295       /* XXX determine the best way to pull off a conference.  Meetme? */
03296       break;
03297    case STIMULUS_VOICEMAIL:
03298       if (skinnydebug)
03299          ast_verbose("Received Stimulus: Voicemail(%d/%d)\n", instance, callreference);
03300       /* XXX Find and dial voicemail extension */
03301       break;
03302    case STIMULUS_CALLPARK:
03303       if (skinnydebug)
03304          ast_verbose("Received Stimulus: Park Call(%d/%d)\n", instance, callreference);
03305       /* XXX Park the call */
03306       break;
03307    case STIMULUS_FORWARDALL:
03308       if (skinnydebug)
03309          ast_verbose("Received Stimulus: Forward All(%d/%d)\n", instance, callreference);
03310       /* Why is DND under FORWARDALL? */
03311       /* Because it's the same thing. */
03312 
03313       /* Do not disturb */
03314       if (l->dnd != 0){
03315          if (option_verbose > 2)
03316             ast_verbose(VERBOSE_PREFIX_3 "Disabling DND on %s@%s\n", l->name, d->name);
03317          l->dnd = 0;
03318          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_ON);
03319          transmit_displaynotify(s, "DnD disabled", 10);
03320       } else {
03321          if (option_verbose > 2)
03322             ast_verbose(VERBOSE_PREFIX_3 "Enabling DND on %s@%s\n", l->name, d->name);
03323          l->dnd = 1;
03324          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_OFF);
03325          transmit_displaynotify(s, "DnD enabled", 10);
03326       }
03327       break;
03328    case STIMULUS_FORWARDBUSY:
03329       if (skinnydebug)
03330          ast_verbose("Received Stimulus: Forward Busy (%d/%d)\n", instance, callreference);
03331       break;
03332    case STIMULUS_FORWARDNOANSWER:
03333       if (skinnydebug)
03334          ast_verbose("Received Stimulus: Forward No Answer (%d/%d)\n", instance, callreference);
03335       break;
03336    case STIMULUS_DISPLAY:
03337       /* Not sure what this is */
03338       if (skinnydebug)
03339          ast_verbose("Received Stimulus: Display(%d/%d)\n", instance, callreference);
03340       break;
03341    case STIMULUS_LINE:
03342       if (skinnydebug)
03343          ast_verbose("Received Stimulus: Line(%d/%d)\n", instance, callreference);
03344 
03345       l = find_line_by_instance(s->device, instance);
03346 
03347       if (!l) {
03348          return 0;
03349       }
03350 
03351       /* turn the speaker on */
03352       transmit_speaker_mode(s, SKINNY_SPEAKERON);
03353       transmit_ringer_mode(s, SKINNY_RING_OFF);
03354       transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
03355 
03356       l->hookstate = SKINNY_OFFHOOK;
03357 
03358       if (sub && sub->outgoing) {
03359          /* We're answering a ringing call */
03360          ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
03361          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03362          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03363          transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
03364          transmit_displaypromptstatus(s, "Connected", 0, l->instance, sub->callid);
03365          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
03366          start_rtp(sub);
03367          ast_setstate(sub->owner, AST_STATE_UP);
03368       } else {
03369          if (sub && sub->owner) {
03370             ast_log(LOG_DEBUG, "Current subchannel [%s] already has owner\n", sub->owner->name);
03371          } else {
03372             c = skinny_new(l, AST_STATE_DOWN);
03373             if(c) {
03374                sub = c->tech_pvt;
03375                transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03376                if (skinnydebug)
03377                   ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03378                transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03379                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03380                transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
03381 
03382                /* start the switch thread */
03383                if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
03384                   ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
03385                   ast_hangup(c);
03386                }
03387             } else {
03388                ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03389             }
03390          }
03391       }
03392       break;
03393    default:
03394       if (skinnydebug)
03395          ast_verbose("RECEIVED UNKNOWN STIMULUS:  %d(%d/%d)\n", event, instance, callreference);
03396       break;
03397    }
03398    return 1;
03399 }
03400 
03401 static int handle_offhook_message(struct skinny_req *req, struct skinnysession *s)
03402 {
03403    struct skinny_device *d = s->device;
03404    struct skinny_line *l;
03405    struct skinny_subchannel *sub;
03406    struct ast_channel *c;
03407    pthread_t t;
03408    int unknown1;
03409    int unknown2;
03410 
03411    unknown1 = letohl(req->data.offhook.unknown1);
03412    unknown2 = letohl(req->data.offhook.unknown2);
03413 
03414    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03415 
03416    if (!sub) {
03417       l = find_line_by_instance(d, d->lastlineinstance);
03418       if (!l) {
03419          return 0;
03420       }
03421    } else {
03422       l = sub->parent;
03423    }
03424 
03425    transmit_ringer_mode(s, SKINNY_RING_OFF);
03426    l->hookstate = SKINNY_OFFHOOK;
03427 
03428    if (sub && sub->onhold) {
03429       return 1;
03430    }
03431 
03432    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
03433 
03434    if (sub && sub->outgoing) {
03435       /* We're answering a ringing call */
03436       ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
03437       transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03438       transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03439       transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
03440       transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
03441       start_rtp(sub);
03442       ast_setstate(sub->owner, AST_STATE_UP);
03443    } else {
03444       if (sub && sub->owner) {
03445          ast_log(LOG_DEBUG, "Current sub [%s] already has owner\n", sub->owner->name);
03446       } else {
03447          c = skinny_new(l, AST_STATE_DOWN);
03448          if(c) {
03449             sub = c->tech_pvt;
03450             transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03451             if (skinnydebug)
03452                ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03453             transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03454             transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03455             transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
03456 
03457             /* start the switch thread */
03458             if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
03459                ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
03460                ast_hangup(c);
03461             }
03462          } else {
03463             ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03464          }
03465       }
03466    }
03467    return 1;
03468 }
03469 
03470 static int handle_onhook_message(struct skinny_req *req, struct skinnysession *s)
03471 {
03472    struct skinny_device *d = s->device;
03473    struct skinny_line *l;
03474    struct skinny_subchannel *sub;
03475    int unknown1;
03476    int unknown2;
03477 
03478    unknown1 = letohl(req->data.onhook.unknown1);
03479    unknown2 = letohl(req->data.onhook.unknown2);
03480 
03481    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03482 
03483    if (!sub) {
03484       return 0;
03485    }
03486    l = sub->parent;
03487 
03488    if (l->hookstate == SKINNY_ONHOOK) {
03489       /* Something else already put us back on hook */
03490       return 0;
03491    }
03492    l->hookstate = SKINNY_ONHOOK;
03493 
03494    if (sub->onhold) {
03495       return 0;
03496    }
03497 
03498    sub->cxmode = SKINNY_CX_RECVONLY;
03499    transmit_callstate(s, l->instance, l->hookstate, sub->callid);
03500    if (skinnydebug)
03501       ast_verbose("Skinny %s@%s went on hook\n", l->name, d->name);
03502    if (l->transfer && (sub->owner && sub->next && sub->next->owner) && ((!sub->outgoing) || (sub->next && !sub->next->outgoing))) {
03503       /* We're allowed to transfer, we have two active calls and
03504          we made at least one of the calls.  Let's try and transfer */
03505 
03506 #if 0
03507       if ((res = attempt_transfer(p)) < 0) {
03508          if (sub->next && sub->next->owner) {
03509             sub->next->alreadygone = 1;
03510             ast_queue_hangup(sub->next->owner,1);
03511          }
03512       } else if (res) {
03513          ast_log(LOG_WARNING, "Transfer attempt failed\n");
03514          return 0;
03515       }
03516 #endif
03517    } else {
03518       /* Hangup the current call */
03519       /* If there is another active call, skinny_hangup will ring the phone with the other call */
03520       if (sub->owner) {
03521          sub->alreadygone = 1;
03522          ast_queue_hangup(sub->owner);
03523       } else {
03524          ast_log(LOG_WARNING, "Skinny(%s@%s-%d) channel already destroyed\n",
03525             l->name, d->name, sub->callid);
03526       }
03527    }
03528    if ((l->hookstate == SKINNY_ONHOOK) && (sub->next && !sub->next->rtp)) {
03529       do_housekeeping(s);
03530    }
03531    return 1;
03532 }
03533 
03534 static int handle_capabilities_res_message(struct skinny_req *req, struct skinnysession *s)
03535 {
03536    struct skinny_device *d = s->device;
03537    struct skinny_line *l;
03538    uint32_t count = 0;
03539    int codecs = 0;
03540    int i;
03541 
03542    count = letohl(req->data.caps.count);
03543    if (count > SKINNY_MAX_CAPABILITIES) {
03544       count = SKINNY_MAX_CAPABILITIES;
03545       ast_log(LOG_WARNING, "Received more capabilities than we can handle (%d).  Ignoring the rest.\n", SKINNY_MAX_CAPABILITIES);
03546    }
03547 
03548    for (i = 0; i < count; i++) {
03549       int acodec = 0;
03550       int scodec = 0;
03551       scodec = letohl(req->data.caps.caps[i].codec);
03552       acodec = codec_skinny2ast(scodec);
03553       if (skinnydebug)
03554          ast_verbose("Adding codec capability '%d (%d)'\n", acodec, scodec);
03555       codecs |= acodec;
03556    }
03557 
03558    d->capability &= codecs;
03559    ast_verbose("Device capability set to '%d'\n", d->capability);
03560    for (l = d->lines; l; l = l->next) {
03561       ast_mutex_lock(&l->lock);
03562       l->capability = d->capability;
03563       ast_mutex_unlock(&l->lock);
03564    }
03565 
03566    return 1;
03567 }
03568 
03569 static int handle_speed_dial_stat_req_message(struct skinny_req *req, struct skinnysession *s)
03570 {
03571    struct skinny_device *d = s->device;
03572    struct skinny_speeddial *sd;
03573    int instance;
03574 
03575    instance = letohl(req->data.speeddialreq.speedDialNumber);
03576 
03577    sd = find_speeddial_by_instance(d, instance);
03578 
03579    if (!sd) {
03580       return 0;
03581    }
03582 
03583    if (!(req = req_alloc(sizeof(struct speed_dial_stat_res_message), SPEED_DIAL_STAT_RES_MESSAGE)))
03584       return -1;
03585 
03586    req->data.speeddialreq.speedDialNumber = htolel(instance);
03587    snprintf(req->data.speeddial.speedDialDirNumber, sizeof(req->data.speeddial.speedDialDirNumber), sd->exten);
03588    snprintf(req->data.speeddial.speedDialDisplayName, sizeof(req->data.speeddial.speedDialDisplayName), sd->label);
03589 
03590    transmit_response(s, req);
03591    return 1;
03592 }
03593 
03594 static int handle_line_state_req_message(struct skinny_req *req, struct skinnysession *s)
03595 {
03596    struct skinny_device *d = s->device;
03597    struct skinny_line *l;
03598    int instance;
03599 
03600    instance = letohl(req->data.line.lineNumber);
03601 
03602    ast_mutex_lock(&devicelock);
03603 
03604    l = find_line_by_instance(d, instance);
03605 
03606    if (!l) {
03607       return 0;
03608    }
03609 
03610    ast_mutex_unlock(&devicelock);
03611 
03612    if (!(req = req_alloc(sizeof(struct line_stat_res_message), LINE_STAT_RES_MESSAGE)))
03613       return -1;
03614 
03615    req->data.linestat.lineNumber = letohl(instance);
03616    memcpy(req->data.linestat.lineDirNumber, l->name,
03617          sizeof(req->data.linestat.lineDirNumber));
03618    memcpy(req->data.linestat.lineDisplayName, l->label,
03619          sizeof(req->data.linestat.lineDisplayName));
03620    transmit_response(s,req);
03621    return 1;
03622 }
03623 
03624 static int handle_time_date_req_message(struct skinny_req *req, struct skinnysession *s)
03625 {
03626    time_t timer;
03627    struct tm *cmtime;
03628 
03629    if (!(req = req_alloc(sizeof(struct definetimedate_message), DEFINETIMEDATE_MESSAGE)))
03630       return -1;
03631 
03632    timer = time(NULL);
03633    cmtime = localtime(&timer);
03634    req->data.definetimedate.year = htolel(cmtime->tm_year+1900);
03635    req->data.definetimedate.month = htolel(cmtime->tm_mon+1);
03636    req->data.definetimedate.dayofweek = htolel(cmtime->tm_wday);
03637    req->data.definetimedate.day = htolel(cmtime->tm_mday);
03638    req->data.definetimedate.hour = htolel(cmtime->tm_hour);
03639    req->data.definetimedate.minute = htolel(cmtime->tm_min);
03640    req->data.definetimedate.seconds = htolel(cmtime->tm_sec);
03641    req->data.definetimedate.milliseconds = htolel(0);
03642    req->data.definetimedate.timestamp = htolel(timer);
03643    transmit_response(s, req);
03644    return 1;
03645 }
03646 
03647 static int handle_button_template_req_message(struct skinny_req *req, struct skinnysession *s)
03648 {
03649    struct skinny_device *d = s->device;
03650    struct skinny_line *l;
03651    int i;
03652 
03653    struct skinny_speeddial *sd;
03654    struct button_definition_template btn[42];
03655    int lineInstance = 1;
03656    int speeddialInstance = 1;
03657    int buttonCount = 0;
03658 
03659    if (!(req = req_alloc(sizeof(struct button_template_res_message), BUTTON_TEMPLATE_RES_MESSAGE)))
03660       return -1;
03661 
03662    memset(&btn, 0, sizeof(btn));
03663 
03664    get_button_template(s, btn);
03665 
03666    for (i=0; i<42; i++) {
03667       int btnSet = 0;
03668       switch (btn[i].buttonDefinition) {
03669          case BT_CUST_LINESPEEDDIAL:
03670             /* assume failure */
03671             req->data.buttontemplate.definition[i].buttonDefinition = BT_NONE;
03672             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03673 
03674             for (l = d->lines; l; l = l->next) {
03675                if (l->instance == lineInstance) {
03676                   ast_verbose("Adding button: %d, %d\n", BT_LINE, lineInstance);
03677                   req->data.buttontemplate.definition[i].buttonDefinition = BT_LINE;
03678                   req->data.buttontemplate.definition[i].instanceNumber = htolel(lineInstance);
03679                   lineInstance++;
03680                   buttonCount++;
03681                   btnSet = 1;
03682                   break;
03683                }
03684             }
03685 
03686             if (!btnSet) {
03687                for (sd = d->speeddials; sd; sd = sd->next) {
03688                   if (sd->instance == speeddialInstance) {
03689                      ast_verbose("Adding button: %d, %d\n", BT_SPEEDDIAL, speeddialInstance);
03690                      req->data.buttontemplate.definition[i].buttonDefinition = BT_SPEEDDIAL;
03691                      req->data.buttontemplate.definition[i].instanceNumber = htolel(speeddialInstance);
03692                      speeddialInstance++;
03693                      buttonCount++;
03694                      btnSet = 1;
03695                      break;
03696                   }
03697                }
03698             }
03699             break;
03700          case BT_LINE:
03701             req->data.buttontemplate.definition[i].buttonDefinition = htolel(BT_NONE);
03702             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03703 
03704             for (l = d->lines; l; l = l->next) {
03705                if (l->instance == lineInstance) {
03706                   ast_verbose("Adding button: %d, %d\n", BT_LINE, lineInstance);
03707                   req->data.buttontemplate.definition[i].buttonDefinition = BT_LINE;
03708                   req->data.buttontemplate.definition[i].instanceNumber = htolel(lineInstance);
03709                   lineInstance++;
03710                   buttonCount++;
03711                   btnSet = 1;
03712                   break;
03713                }
03714             }
03715             break;
03716          case BT_SPEEDDIAL:
03717             req->data.buttontemplate.definition[i].buttonDefinition = BT_NONE;
03718             req->data.buttontemplate.definition[i].instanceNumber = 0;
03719 
03720             for (sd = d->speeddials; sd; sd = sd->next) {
03721                if (sd->instance == speeddialInstance) {
03722                   ast_verbose("Adding button: %d, %d\n", BT_SPEEDDIAL, speeddialInstance);
03723                   req->data.buttontemplate.definition[i].buttonDefinition = BT_SPEEDDIAL;
03724                   req->data.buttontemplate.definition[i].instanceNumber = htolel(speeddialInstance);
03725                   speeddialInstance++;
03726                   buttonCount++;
03727                   btnSet = 1;
03728                   break;
03729                }
03730             }
03731             break;
03732          case BT_CUST_HINT:
03733             break;
03734          case BT_NONE:
03735             break;
03736          default:
03737             ast_verbose("Adding button: %d, %d\n", btn[i].buttonDefinition, 0);
03738             req->data.buttontemplate.definition[i].buttonDefinition = htolel(btn[i].buttonDefinition);
03739             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03740             buttonCount++;
03741             btnSet = 1;
03742             break;
03743       }
03744    }
03745 
03746    req->data.buttontemplate.buttonOffset = htolel(0);
03747    req->data.buttontemplate.buttonCount = htolel(buttonCount);
03748    req->data.buttontemplate.totalButtonCount = htolel(buttonCount);
03749 
03750    if (skinnydebug)
03751       ast_verbose("Sending %d template to %s\n",
03752                d->type,
03753                d->name);
03754    transmit_response(s, req);
03755    return 1;
03756 }
03757 
03758 static int handle_version_req_message(struct skinny_req *req, struct skinnysession *s)
03759 {
03760    struct skinny_device *d = s->device;
03761    if (!(req = req_alloc(sizeof(struct version_res_message), VERSION_RES_MESSAGE)))
03762       return -1;
03763 
03764    snprintf(req->data.version.version, sizeof(req->data.version.version), d->version_id);
03765    transmit_response(s, req);
03766    return 1;
03767 }
03768 
03769 static int handle_server_request_message(struct skinny_req *req, struct skinnysession *s)
03770 {
03771    struct skinny_device *d = s->device;
03772    if (!(req = req_alloc(sizeof(struct server_res_message), SERVER_RES_MESSAGE)))
03773       return -1;
03774 
03775    memcpy(req->data.serverres.server[0].serverName, ourhost,
03776          sizeof(req->data.serverres.server[0].serverName));
03777    req->data.serverres.serverListenPort[0] = htolel(ourport);
03778    req->data.serverres.serverIpAddr[0] = htolel(d->ourip.s_addr);
03779    transmit_response(s, req);
03780    return 1;
03781 }
03782 
03783 static int handle_alarm_message(struct skinny_req *req, struct skinnysession *s)
03784 {
03785    /* no response necessary */
03786    if (skinnydebug)
03787       ast_verbose("Received Alarm Message: %s\n", req->data.alarm.displayMessage);
03788 
03789    return 1;
03790 }
03791 
03792 static int handle_open_receive_channel_ack_message(struct skinny_req *req, struct skinnysession *s)
03793 {
03794    struct skinny_device *d = s->device;
03795    struct skinny_line *l;
03796    struct skinny_subchannel *sub;
03797    struct ast_format_list fmt;
03798    struct sockaddr_in sin;
03799    struct sockaddr_in us;
03800    uint32_t addr;
03801    int port;
03802    int status;
03803    int passthruid;
03804 
03805    status = letohl(req->data.openreceivechannelack.status);
03806    if (status) {
03807       ast_log(LOG_ERROR, "Open Receive Channel Failure\n");
03808       return 0;
03809    }
03810    addr = letohl(req->data.openreceivechannelack.ipAddr);
03811    port = letohl(req->data.openreceivechannelack.port);
03812    passthruid = letohl(req->data.openreceivechannelack.passThruId);
03813 
03814    sin.sin_family = AF_INET;
03815    sin.sin_addr.s_addr = addr;
03816    sin.sin_port = htons(port);
03817 
03818    sub = find_subchannel_by_reference(d, passthruid);
03819 
03820    if (!sub)
03821       return 0;
03822 
03823    l = sub->parent;
03824 
03825    if (sub->rtp) {
03826       ast_rtp_set_peer(sub->rtp, &sin);
03827       ast_rtp_get_us(sub->rtp, &us);
03828    } else {
03829       ast_log(LOG_ERROR, "No RTP structure, this is very bad\n");
03830       return 0;
03831    }
03832 
03833    if (skinnydebug) {
03834       ast_verbose("ipaddr = %s:%d\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port));
03835       ast_verbose("ourip = %s:%d\n", ast_inet_ntoa(d->ourip), ntohs(us.sin_port));
03836    }
03837 
03838    if (!(req = req_alloc(sizeof(struct start_media_transmission_message), START_MEDIA_TRANSMISSION_MESSAGE)))
03839       return -1;
03840 
03841    fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
03842 
03843    if (skinnydebug)
03844       ast_verbose("Setting payloadType to '%d' (%d ms)\n", fmt.bits, fmt.cur_ms);
03845 
03846    req->data.startmedia.conferenceId = htolel(sub->callid);
03847    req->data.startmedia.passThruPartyId = htolel(sub->callid);
03848    req->data.startmedia.remoteIp = htolel(d->ourip.s_addr);
03849    req->data.startmedia.remotePort = htolel(ntohs(us.sin_port));
03850    req->data.startmedia.packetSize = htolel(fmt.cur_ms);
03851    req->data.startmedia.payloadType = htolel(codec_ast2skinny(fmt.bits));
03852    req->data.startmedia.qualifier.precedence = htolel(127);
03853    req->data.startmedia.qualifier.vad = htolel(0);
03854    req->data.startmedia.qualifier.packets = htolel(0);
03855    req->data.startmedia.qualifier.bitRate = htolel(0);
03856    transmit_response(s, req);
03857 
03858    return 1;
03859 }
03860 
03861 static int handle_enbloc_call_message(struct skinny_req *req, struct skinnysession *s)
03862 {
03863    struct skinny_device *d = s->device;
03864    struct skinny_line *l;
03865    struct skinny_subchannel *sub = NULL;
03866    struct ast_channel *c;
03867    pthread_t t;
03868 
03869    if (skinnydebug)
03870       ast_verbose("Received Enbloc Call: %s\n", req->data.enbloccallmessage.calledParty);
03871 
03872    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03873 
03874    if (!sub) {
03875       l = find_line_by_instance(d, d->lastlineinstance);
03876       if (!l) {
03877          return 0;
03878       }
03879    } else {
03880       l = sub->parent;
03881    }
03882 
03883    c = skinny_new(l, AST_STATE_DOWN);
03884 
03885    if(!c) {
03886       ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03887    } else {
03888       l->hookstate = SKINNY_OFFHOOK;
03889 
03890       sub = c->tech_pvt;
03891       transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03892       if (skinnydebug)
03893          ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03894       transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03895       transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03896 
03897       if (!ast_ignore_pattern(c->context, req->data.enbloccallmessage.calledParty)) {
03898          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03899       }
03900       ast_copy_string(c->exten, req->data.enbloccallmessage.calledParty, sizeof(c->exten));
03901       if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
03902          ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
03903          ast_hangup(c);
03904       }
03905    }
03906    
03907    return 1;
03908 }
03909 
03910 
03911 static int handle_soft_key_set_req_message(struct skinny_req *req, struct skinnysession *s)
03912 {
03913    int i;
03914    int x;
03915    int y;
03916    const struct soft_key_definitions *softkeymode = soft_key_default_definitions;
03917 
03918    if (!(req = req_alloc(sizeof(struct soft_key_set_res_message), SOFT_KEY_SET_RES_MESSAGE)))
03919       return -1;
03920 
03921    req->data.softkeysets.softKeySetOffset = htolel(0);
03922    req->data.softkeysets.softKeySetCount = htolel(11);
03923    req->data.softkeysets.totalSoftKeySetCount = htolel(11);
03924    for (x = 0; x < sizeof(soft_key_default_definitions) / sizeof(struct soft_key_definitions); x++) {
03925       const uint8_t *defaults = softkeymode->defaults;
03926       /* XXX I wanted to get the size of the array dynamically, but that wasn't wanting to work.
03927          This will have to do for now. */
03928       for (y = 0; y < softkeymode->count; y++) {
03929          for (i = 0; i < (sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition)); i++) {
03930             if (defaults[y] == i+1) {
03931                req->data.softkeysets.softKeySetDefinition[softkeymode->mode].softKeyTemplateIndex[y] = htolel(i+1);
03932                req->data.softkeysets.softKeySetDefinition[softkeymode->mode].softKeyInfoIndex[y] = htolel(i+301);
03933             }
03934          }
03935       }
03936       softkeymode++;
03937    }
03938    transmit_response(s,req);
03939    transmit_selectsoftkeys(s, 0, 0, KEYDEF_ONHOOK);
03940    return 1;
03941 }
03942 
03943 static int handle_soft_key_event_message(struct skinny_req *req, struct skinnysession *s)
03944 {
03945    struct skinny_device *d = s->device;
03946    struct skinny_line *l;
03947    struct skinny_subchannel *sub = NULL;
03948    struct ast_channel *c;
03949    pthread_t t;
03950    int event;
03951    int instance;
03952    int callreference;
03953 
03954    event = letohl(req->data.softkeyeventmessage.softKeyEvent);
03955    instance = letohl(req->data.softkeyeventmessage.instance);
03956    callreference = letohl(req->data.softkeyeventmessage.callreference);
03957 
03958    if (instance) {
03959       l = find_line_by_instance(d, instance);
03960       if (callreference) {
03961          sub = find_subchannel_by_instance_reference(d, instance, callreference);
03962       } else {
03963          sub = find_subchannel_by_instance_reference(d, instance, d->lastcallreference);
03964       }
03965    } else {
03966       l = find_line_by_instance(d, d->lastlineinstance);
03967    }
03968 
03969    if (!l) {
03970       if (skinnydebug)
03971          ast_verbose("Received Softkey Event: %d(%d/%d)\n", event, instance, callreference);
03972       return 0;
03973    }
03974 
03975    switch(event) {
03976    case SOFTKEY_NONE:
03977       if (skinnydebug)
03978          ast_verbose("Received Softkey Event: None(%d/%d)\n", instance, callreference);
03979       break;
03980    case SOFTKEY_REDIAL:
03981       if (skinnydebug)
03982          ast_verbose("Received Softkey Event: Redial(%d/%d)\n", instance, callreference);
03983 
03984 #if 0
03985       if (!sub || !sub->owner) {
03986          c = skinny_new(l, AST_STATE_DOWN);
03987       } else {
03988          c = sub->owner;
03989       }
03990 
03991       if(!c) {
03992          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03993       } else {
03994          sub = c->tech_pvt;
03995          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03996          if (skinnydebug)
03997             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03998          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03999          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
04000          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
04001 
04002          if (!ast_ignore_pattern(c->context, l->lastnumberdialed)) {
04003             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
04004          }
04005          ast_copy_string(c->exten, l->lastnumberdialed, sizeof(c->exten));
04006          if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
04007             ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
04008             ast_hangup(c);
04009          }
04010       }
04011 #endif
04012       break;
04013    case SOFTKEY_NEWCALL:  /* Actually the DIAL softkey */
04014       if (skinnydebug)
04015          ast_verbose("Received Softkey Event: New Call(%d/%d)\n", instance, callreference);
04016 
04017       if (!sub || !sub->owner) {
04018          c = skinny_new(l, AST_STATE_DOWN);
04019       } else {
04020          c = sub->owner;
04021       }
04022 
04023       if (!c) {
04024          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
04025       } else {
04026          sub = c->tech_pvt;
04027          if (l->hookstate == SKINNY_ONHOOK) {
04028             l->hookstate = SKINNY_OFFHOOK;
04029             transmit_speaker_mode(s, SKINNY_SPEAKERON);
04030             transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
04031          }
04032 
04033          if (skinnydebug)
04034             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
04035          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
04036          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
04037          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
04038 
04039          /* start the switch thread */
04040          if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
04041             ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
04042             ast_hangup(c);
04043          }
04044       }
04045       break;
04046    case SOFTKEY_HOLD:
04047       if (skinnydebug)
04048          ast_verbose("Received Softkey Event: Hold(%d/%d)\n", instance, callreference);
04049 
04050       if (sub) {
04051          if (sub->onhold) {
04052             skinny_unhold(sub);
04053          } else {
04054             skinny_hold(sub);
04055          }
04056       }
04057             
04058       break;
04059    case SOFTKEY_TRNSFER:
04060       if (skinnydebug)
04061          ast_verbose("Received Softkey Event: Transfer(%d/%d)\n", instance, callreference);
04062       /* XXX figure out how to transfer */
04063       break;
04064    case SOFTKEY_CFWDALL:
04065       if (skinnydebug)
04066          ast_verbose("Received Softkey Event: Forward All(%d/%d)\n", instance, callreference);
04067 
04068       /* Do not disturb */
04069       if (l->dnd != 0){
04070          if (option_verbose > 2)
04071             ast_verbose(VERBOSE_PREFIX_3 "Disabling DND on %s@%s\n", l->name, d->name);
04072          l->dnd = 0;
04073          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_ON);
04074          transmit_displaynotify(s, "DnD disabled", 10);
04075       } else {
04076          if (option_verbose > 2)
04077             ast_verbose(VERBOSE_PREFIX_3 "Enabling DND on %s@%s\n", l->name, d->name);
04078          l->dnd = 1;
04079          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_OFF);
04080          transmit_displaynotify(s, "DnD enabled", 10);
04081       }
04082       break;
04083    case SOFTKEY_CFWDBUSY:
04084       if (skinnydebug)
04085          ast_verbose("Received Softkey Event: Forward Busy (%d/%d)\n", instance, callreference);
04086       break;
04087    case SOFTKEY_CFWDNOANSWER:
04088       if (skinnydebug)
04089          ast_verbose("Received Softkey Event: Forward No Answer (%d/%d)\n", instance, callreference);
04090       break;
04091    case SOFTKEY_BKSPC:
04092       if (skinnydebug)
04093          ast_verbose("Received Softkey Event: Backspace(%d/%d)\n", instance, callreference);
04094       break;
04095    case SOFTKEY_ENDCALL:
04096       if (skinnydebug)
04097          ast_verbose("Received Softkey Event: End Call(%d/%d)\n", instance, callreference);
04098 
04099       if (l->hookstate == SKINNY_ONHOOK) {
04100          /* Something else already put us back on hook */
04101          break;
04102       }
04103       if (sub) {
04104          sub->cxmode = SKINNY_CX_RECVONLY;
04105          l->hookstate = SKINNY_ONHOOK;
04106          transmit_callstate(s, l->instance, l->hookstate, sub->callid);
04107          if (skinnydebug)
04108             ast_verbose("Skinny %s@%s went on hook\n", l->name, d->name);
04109          if (l->transfer && (sub->owner && sub->next && sub->next->owner) && ((!sub->outgoing) || (sub->next && !sub->next->outgoing))) {
04110             /* We're allowed to transfer, we have two active calls and
04111                we made at least one of the calls.  Let's try and transfer */
04112 
04113 #if 0
04114             if ((res = attempt_transfer(p)) < 0) {
04115                if (sub->next && sub->next->owner) {
04116                   sub->next->alreadygone = 1;
04117                   ast_queue_hangup(sub->next->owner, 1);
04118                }
04119             } else if (res) {
04120                ast_log(LOG_WARNING, "Transfer attempt failed\n");
04121                break;
04122             }
04123 #endif
04124          } else {
04125             /* Hangup the current call */
04126             /* If there is another active call, skinny_hangup will ring the phone with the other call */
04127             if (sub->owner) {
04128                sub->alreadygone = 1;
04129                ast_queue_hangup(sub->owner);
04130             } else {
04131                ast_log(LOG_WARNING, "Skinny(%s@%s-%d) channel already destroyed\n",
04132                   l->name, d->name, sub->callid);
04133             }
04134          }
04135          if ((l->hookstate == SKINNY_ONHOOK) && (sub->next && !sub->next->rtp)) {
04136             do_housekeeping(s);
04137          }
04138       }
04139       break;
04140    case SOFTKEY_RESUME:
04141       if (skinnydebug)
04142          ast_verbose("Received Softkey Event: Resume(%d/%d)\n", instance, callreference);
04143       break;
04144    case SOFTKEY_ANSWER:
04145       if (skinnydebug)
04146          ast_verbose("Received Softkey Event: Answer(%d/%d)\n", instance, callreference);
04147 
04148       transmit_ringer_mode(s,SKINNY_RING_OFF);
04149       transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
04150 
04151       l->hookstate = SKINNY_OFFHOOK;
04152 
04153       if (sub && sub->outgoing) {
04154          /* We're answering a ringing call */
04155          ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
04156          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
04157          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
04158          transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
04159          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
04160          start_rtp(sub);
04161          ast_setstate(sub->owner, AST_STATE_UP);
04162       }
04163       break;
04164    case SOFTKEY_INFO:
04165       if (skinnydebug)
04166          ast_verbose("Received Softkey Event: Info(%d/%d)\n", instance, callreference);
04167       break;
04168    case SOFTKEY_CONFRN:
04169       if (skinnydebug)
04170          ast_verbose("Received Softkey Event: Conference(%d/%d)\n", instance, callreference);
04171       /* XXX determine the best way to pull off a conference.  Meetme? */
04172       break;
04173    case SOFTKEY_PARK:
04174       if (skinnydebug)
04175          ast_verbose("Received Softkey Event: Park Call(%d/%d)\n", instance, callreference);
04176       /* XXX Park the call */
04177       break;
04178    case SOFTKEY_JOIN:
04179       if (skinnydebug)
04180          ast_verbose("Received Softkey Event: Join(%d/%d)\n", instance, callreference);
04181       break;
04182    case SOFTKEY_MEETME:
04183       /* XXX How is this different from CONFRN? */
04184       if (skinnydebug)
04185          ast_verbose("Received Softkey Event: Meetme(%d/%d)\n", instance, callreference);
04186       break;
04187    case SOFTKEY_PICKUP:
04188       if (skinnydebug)
04189          ast_verbose("Received Softkey Event: Pickup(%d/%d)\n", instance, callreference);
04190       break;
04191    case SOFTKEY_GPICKUP:
04192       if (skinnydebug)
04193          ast_verbose("Received Softkey Event: Group Pickup(%d/%d)\n", instance, callreference);
04194       break;
04195    default:
04196       if (skinnydebug)
04197          ast_verbose("Received unknown Softkey Event: %d(%d/%d)\n", event, instance, callreference);
04198       break;
04199    }
04200    return 1;
04201 }
04202 
04203 static int handle_unregister_message(struct skinny_req *req, struct skinnysession *s)
04204 {
04205    return skinny_unregister(req, s);
04206 }
04207 
04208 static int handle_soft_key_template_req_message(struct skinny_req *req, struct skinnysession *s)
04209 {
04210    if (!(req = req_alloc(sizeof(struct soft_key_template_res_message), SOFT_KEY_TEMPLATE_RES_MESSAGE)))
04211       return -1;
04212 
04213    req->data.softkeytemplate.softKeyOffset = htolel(0);
04214    req->data.softkeytemplate.softKeyCount = htolel(sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition));
04215    req->data.softkeytemplate.totalSoftKeyCount = htolel(sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition));
04216    memcpy(req->data.softkeytemplate.softKeyTemplateDefinition,
04217       soft_key_template_default,
04218       sizeof(soft_key_template_default));
04219    transmit_response(s,req);
04220    return 1;
04221 }
04222 
04223 static int handle_headset_status_message(struct skinny_req *req, struct skinnysession *s)
04224 {
04225    /* XXX umm...okay?  Why do I care? */
04226    return 1;
04227 }
04228 
04229 static int handle_register_available_lines_message(struct skinny_req *req, struct skinnysession *s)
04230 {
04231    /* XXX I have no clue what this is for, but my phone was sending it, so... */
04232    return 1;
04233 }
04234 
04235 static int handle_message(struct skinny_req *req, struct skinnysession *s)
04236 {
04237    int res = 0;
04238    struct skinny_device *d = s->device;
04239    struct skinny_subchannel *sub;
04240    int lineInstance;
04241    int callReference;
04242 
04243    if ((!s->device) && (letohl(req->e) != REGISTER_MESSAGE && letohl(req->e) != ALARM_MESSAGE)) {
04244       ast_log(LOG_WARNING, "Client sent message #%d without first registering.\n", req->e);
04245       free(req);
04246       return 0;
04247    }
04248 
04249    switch(letohl(req->e))  {
04250    case KEEP_ALIVE_MESSAGE:
04251       res = handle_keep_alive_message(req, s);
04252       break;
04253    case REGISTER_MESSAGE:
04254       if (skinnydebug)
04255          ast_verbose("Device %s is attempting to register\n", req->data.reg.name);
04256 
04257       res = handle_register_message(req, s);
04258       break;
04259    case IP_PORT_MESSAGE:
04260       res = handle_ip_port_message(req, s);
04261       break;
04262    case KEYPAD_BUTTON_MESSAGE:
04263       if (skinnydebug)
04264          ast_verbose("Collected digit: [%d]\n", letohl(req->data.keypad.button));
04265 
04266       lineInstance = letohl(req->data.keypad.lineInstance);
04267       callReference = letohl(req->data.keypad.callReference);
04268 
04269       sub = find_subchannel_by_instance_reference(d, lineInstance, callReference);
04270 
04271       if (sub && (sub->owner && sub->owner->_state <  AST_STATE_UP)) {
04272          char dgt;
04273          int digit = letohl(req->data.keypad.button);
04274          size_t len;
04275 
04276          if (digit == 14) {
04277             dgt = '*';
04278          } else if (digit == 15) {
04279             dgt = '#';
04280          } else if (digit >= 0 && digit <= 9) {
04281             dgt = '0' + digit;
04282          } else {
04283             /* digit=10-13 (A,B,C,D ?), or
04284             * digit is bad value
04285             *
04286             * probably should not end up here, but set
04287             * value for backward compatibility, and log
04288             * a warning.
04289             */
04290             dgt = '0' + digit;
04291             ast_log(LOG_WARNING, "Unsupported digit %d\n", digit);
04292          }
04293 
04294          len = strlen(d->exten);
04295          if (len < sizeof(d->exten) - 1) {
04296             d->exten[len] = dgt;
04297             d->exten[len+1] = '\0';
04298          } else {
04299             ast_log(LOG_WARNING, "Dropping digit with value %d because digit queue is full\n", dgt);
04300          }
04301       } else
04302          res = handle_keypad_button_message(req, s);
04303       break;
04304    case ENBLOC_CALL_MESSAGE:
04305       res = handle_enbloc_call_message(req, s);
04306       break;
04307    case STIMULUS_MESSAGE:
04308       res = handle_stimulus_message(req, s);
04309       break;
04310    case OFFHOOK_MESSAGE:
04311       res = handle_offhook_message(req, s);
04312       break;
04313    case ONHOOK_MESSAGE:
04314       res = handle_onhook_message(req, s);
04315       break;
04316    case CAPABILITIES_RES_MESSAGE:
04317       if (skinnydebug)
04318          ast_verbose("Received CapabilitiesRes\n");
04319 
04320       res = handle_capabilities_res_message(req, s);
04321       break;
04322    case SPEED_DIAL_STAT_REQ_MESSAGE:
04323       if (skinnydebug)
04324          ast_verbose("Received SpeedDialStatRequest\n");
04325 
04326       res = handle_speed_dial_stat_req_message(req, s);
04327       break;
04328    case LINE_STATE_REQ_MESSAGE:
04329       if (skinnydebug)
04330          ast_verbose("Received LineStatRequest\n");
04331       res = handle_line_state_req_message(req, s);
04332       break;
04333    case TIME_DATE_REQ_MESSAGE:
04334       if (skinnydebug)
04335          ast_verbose("Received Time/Date Request\n");
04336 
04337       res = handle_time_date_req_message(req, s);
04338       break;
04339    case BUTTON_TEMPLATE_REQ_MESSAGE:
04340       if (skinnydebug)
04341          ast_verbose("Buttontemplate requested\n");
04342 
04343       res = handle_button_template_req_message(req, s);
04344       break;
04345    case VERSION_REQ_MESSAGE:
04346       if (skinnydebug)
04347          ast_verbose("Version Request\n");
04348 
04349       res = handle_version_req_message(req, s);
04350       break;
04351    case SERVER_REQUEST_MESSAGE:
04352       if (skinnydebug)
04353          ast_verbose("Received Server Request\n");
04354 
04355       res = handle_server_request_message(req, s);
04356       break;
04357    case ALARM_MESSAGE:
04358       res = handle_alarm_message(req, s);
04359       break;
04360    case OPEN_RECEIVE_CHANNEL_ACK_MESSAGE:
04361       if (skinnydebug)
04362          ast_verbose("Received Open Receive Channel Ack\n");
04363 
04364       res = handle_open_receive_channel_ack_message(req, s);
04365       break;
04366    case SOFT_KEY_SET_REQ_MESSAGE:
04367       if (skinnydebug)
04368          ast_verbose("Received SoftKeySetReq\n");
04369 
04370       res = handle_soft_key_set_req_message(req, s);
04371       break;
04372    case SOFT_KEY_EVENT_MESSAGE:
04373       res = handle_soft_key_event_message(req, s);
04374       break;
04375    case UNREGISTER_MESSAGE:
04376       if (skinnydebug)
04377          ast_verbose("Received Unregister Request\n");
04378 
04379       res = handle_unregister_message(req, s);
04380       break;
04381    case SOFT_KEY_TEMPLATE_REQ_MESSAGE:
04382       if (skinnydebug)
04383          ast_verbose("Received SoftKey Template Request\n");
04384 
04385       res = handle_soft_key_template_req_message(req, s);
04386       break;
04387    case HEADSET_STATUS_MESSAGE:
04388       res = handle_headset_status_message(req, s);
04389       break;
04390    case REGISTER_AVAILABLE_LINES_MESSAGE:
04391       res = handle_register_available_lines_message(req, s);
04392       break;
04393    default:
04394       if (skinnydebug)
04395          ast_verbose("RECEIVED UNKNOWN MESSAGE TYPE:  %x\n", letohl(req->e));
04396       break;
04397    }
04398    if (res >= 0 && req)
04399       free(req);
04400    return res;
04401 }
04402 
04403 static void destroy_session(struct skinnysession *s)
04404 {
04405    struct skinnysession *cur, *prev = NULL;
04406    ast_mutex_lock(&sessionlock);
04407    cur = sessions;
04408    while(cur) {
04409       if (cur == s) {
04410          break;
04411       }
04412       prev = cur;
04413       cur = cur->next;
04414    }
04415    if (cur) {
04416       if (prev) {
04417          prev->next = cur->next;
04418       } else {
04419          sessions = cur->next;
04420       }
04421       if (s->fd > -1) {
04422          close(s->fd);
04423       }
04424       ast_mutex_destroy(&s->lock);
04425       free(s);
04426    } else {
04427       ast_log(LOG_WARNING, "Trying to delete nonexistent session %p?\n", s);
04428    }
04429    ast_mutex_unlock(&sessionlock);
04430 }
04431 
04432 static int get_input(struct skinnysession *s)
04433 {
04434    int res;
04435    int dlen = 0;
04436    struct pollfd fds[1];
04437 
04438    fds[0].fd = s->fd;
04439    fds[0].events = POLLIN;
04440    fds[0].revents = 0;
04441    res = poll(fds, 1, (keep_alive * 1100)); /* If nothing has happen, client is dead */
04442                    /* we add 10% to the keep_alive to deal */
04443                    /* with network delays, etc */
04444    if (res < 0) {
04445       if (errno != EINTR) {
04446          ast_log(LOG_WARNING, "Select returned error: %s\n", strerror(errno));
04447          return res;
04448       }
04449    } else if (res == 0) {
04450       if (skinnydebug)
04451          ast_verbose("Skinny Client was lost, unregistering\n");
04452       skinny_unregister(NULL, s);
04453       return -1;
04454    }
04455            
04456    if (fds[0].revents) {
04457       ast_mutex_lock(&s->lock);
04458       memset(s->inbuf,0,sizeof(s->inbuf));
04459       res = read(s->fd, s->inbuf, 4);
04460       if (res < 0) {
04461          ast_log(LOG_WARNING, "read() returned error: %s\n", strerror(errno));
04462 
04463          if (skinnydebug)
04464             ast_verbose("Skinny Client was lost, unregistering\n");
04465          
04466          skinny_unregister(NULL,s);
04467          ast_mutex_unlock(&s->lock);
04468          return res;
04469       } else if (res != 4) {
04470          ast_log(LOG_WARNING, "Skinny Client sent less data than expected.  Expected 4 but got %d.\n", res);
04471          ast_mutex_unlock(&s->lock);
04472          
04473          if (res == 0) {
04474             if (skinnydebug)
04475                ast_verbose("Skinny Client was lost, unregistering\n");
04476             skinny_unregister(NULL, s);
04477          }
04478            
04479          return -1;
04480       }
04481       
04482       dlen = letohl(*(int *)s->inbuf);
04483       if (dlen < 4) {
04484          ast_log(LOG_WARNING, "Skinny Client sent invalid data.\n");
04485          ast_mutex_unlock(&s->lock);
04486          return -1;
04487       }
04488       if (dlen+8 > sizeof(s->inbuf)) {
04489          dlen = sizeof(s->inbuf) - 8;
04490       }
04491       *(int *)s->inbuf = htolel(dlen);
04492 
04493       res = read(s->fd, s->inbuf+4, dlen+4);
04494       ast_mutex_unlock(&s->lock);
04495       if (res < 0) {
04496          ast_log(LOG_WARNING, "read() returned error: %s\n", strerror(errno));
04497          return res;
04498       } else if (res != (dlen+4)) {
04499          ast_log(LOG_WARNING, "Skinny Client sent less data than expected.\n");
04500          return -1;
04501       }
04502       return res;
04503    }
04504    return 0;
04505 }
04506 
04507 static struct skinny_req *skinny_req_parse(struct skinnysession *s)
04508 {
04509    struct skinny_req *req;
04510 
04511    if (!(req = ast_calloc(1, SKINNY_MAX_PACKET)))
04512       return NULL;
04513 
04514    ast_mutex_lock(&s->lock);
04515    memcpy(req, s->inbuf, skinny_header_size);
04516    memcpy(&req->data, s->inbuf+skinny_header_size, letohl(*(int*)(s->inbuf))-4);
04517 
04518    ast_mutex_unlock(&s->lock);
04519 
04520    if (letohl(req->e) < 0) {
04521       ast_log(LOG_ERROR, "Event Message is NULL from socket %d, This is bad\n", s->fd);
04522       free(req);
04523       return NULL;
04524    }
04525 
04526    return req;
04527 }
04528 
04529 static void *skinny_session(void *data)
04530 {
04531    int res;
04532    struct skinny_req *req;
04533    struct skinnysession *s = data;
04534 
04535    if (option_verbose > 2)
04536       ast_verbose(VERBOSE_PREFIX_3 "Starting Skinny session from %s\n", ast_inet_ntoa(s->sin.sin_addr));
04537 
04538    for (;;) {
04539       res = get_input(s);
04540       if (res < 0) {
04541          break;
04542       }
04543 
04544       if (res > 0)
04545       {
04546          if (!(req = skinny_req_parse(s))) {
04547             destroy_session(s);
04548             return NULL;
04549          }
04550 
04551          res = handle_message(req, s);
04552          if (res < 0) {
04553             destroy_session(s);
04554             return NULL;
04555          }
04556       }
04557    }
04558    ast_log(LOG_NOTICE, "Skinny Session returned: %s\n", strerror(errno));
04559 
04560    if (s) 
04561       destroy_session(s);
04562    
04563    return 0;
04564 }
04565 
04566 static void *accept_thread(void *ignore)
04567 {
04568    int as;
04569    struct sockaddr_in sin;
04570    socklen_t sinlen;
04571    struct skinnysession *s;
04572    struct protoent *p;
04573    int arg = 1;
04574    pthread_attr_t attr;
04575    pthread_t tcp_thread;
04576 
04577    pthread_attr_init(&attr);
04578    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
04579 
04580    for (;;) {
04581       sinlen = sizeof(sin);
04582       as = accept(skinnysock, (struct sockaddr *)&sin, &sinlen);
04583       if (as < 0) {
04584          ast_log(LOG_NOTICE, "Accept returned -1: %s\n", strerror(errno));
04585          continue;
04586       }
04587       p = getprotobyname("tcp");
04588       if(p) {
04589          if( setsockopt(as, p->p_proto, TCP_NODELAY, (char *)&arg, sizeof(arg) ) < 0 ) {
04590             ast_log(LOG_WARNING, "Failed to set Skinny tcp connection to TCP_NODELAY mode: %s\n", strerror(errno));
04591          }
04592       }
04593       if (!(s = ast_calloc(1, sizeof(struct skinnysession))))
04594          continue;
04595 
04596       memcpy(&s->sin, &sin, sizeof(sin));
04597       ast_mutex_init(&s->lock);
04598       s->fd = as;
04599       ast_mutex_lock(&sessionlock);
04600       s->next = sessions;
04601       sessions = s;
04602       ast_mutex_unlock(&sessionlock);
04603 
04604       if (ast_pthread_create(&tcp_thread, &attr, skinny_session, s)) {
04605          destroy_session(s);
04606       }
04607    }
04608    if (skinnydebug)
04609       ast_verbose("killing accept thread\n");
04610    close(as);
04611    pthread_attr_destroy(&attr);
04612    return 0;
04613 }
04614 
04615 static void *do_monitor(void *data)
04616 {
04617    int res;
04618 
04619    /* This thread monitors all the interfaces which are not yet in use
04620       (and thus do not have a separate thread) indefinitely */
04621    /* From here on out, we die whenever asked */
04622    for(;;) {
04623       pthread_testcancel();
04624       /* Wait for sched or io */
04625       res = ast_sched_wait(sched);
04626       if ((res < 0) || (res > 1000)) {
04627          res = 1000;
04628       }
04629       res = ast_io_wait(io, res);
04630       ast_mutex_lock(&monlock);
04631       if (res >= 0) {
04632          ast_sched_runq(sched);
04633       }
04634       ast_mutex_unlock(&monlock);
04635    }
04636    /* Never reached */
04637    return NULL;
04638 
04639 }
04640 
04641 static int restart_monitor(void)
04642 {
04643    /* If we're supposed to be stopped -- stay stopped */
04644    if (monitor_thread == AST_PTHREADT_STOP)
04645       return 0;
04646 
04647    ast_mutex_lock(&monlock);
04648    if (monitor_thread == pthread_self()) {
04649       ast_mutex_unlock(&monlock);
04650       ast_log(LOG_WARNING, "Cannot kill myself\n");
04651       return -1;
04652    }
04653    if (monitor_thread != AST_PTHREADT_NULL) {
04654       /* Wake up the thread */
04655       pthread_kill(monitor_thread, SIGURG);
04656    } else {
04657       /* Start a new monitor */
04658       if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
04659          ast_mutex_unlock(&monlock);
04660          ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
04661          return -1;
04662       }
04663    }
04664    ast_mutex_unlock(&monlock);
04665    return 0;
04666 }
04667 
04668 static struct ast_channel *skinny_request(const char *type, int format, void *data, int *cause)
04669 {
04670    int oldformat;
04671    
04672    struct skinny_line *l;
04673    struct ast_channel *tmpc = NULL;
04674    char tmp[256];
04675    char *dest = data;
04676 
04677    oldformat = format;
04678    
04679    if (!(format &= ((AST_FORMAT_MAX_AUDIO << 1) - 1))) {
04680       ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format);
04681       return NULL;   
04682    }     
04683 
04684    ast_copy_string(tmp, dest, sizeof(tmp));
04685    if (ast_strlen_zero(tmp)) {
04686       ast_log(LOG_NOTICE, "Skinny channels require a device\n");
04687       return NULL;
04688    }
04689    l = find_line_by_name(tmp);
04690    if (!l) {
04691       ast_log(LOG_NOTICE, "No available lines on: %s\n", dest);
04692       return NULL;
04693    }
04694    if (option_verbose > 2) {
04695       ast_verbose(VERBOSE_PREFIX_3 "skinny_request(%s)\n", tmp);
04696    }
04697    tmpc = skinny_new(l, AST_STATE_DOWN);
04698    if (!tmpc) {
04699       ast_log(LOG_WARNING, "Unable to make channel for '%s'\n", tmp);
04700    }
04701    restart_monitor();
04702    return tmpc;
04703 }
04704 
04705 static int reload_config(void)
04706 {
04707    int on = 1;
04708    struct ast_config *cfg;
04709    struct ast_variable *v;
04710    char *cat;
04711    struct skinny_device *d;
04712    int oldport = ntohs(bindaddr.sin_port);
04713 
04714    if (gethostname(ourhost, sizeof(ourhost))) {
04715       ast_log(LOG_WARNING, "Unable to get hostname, Skinny disabled\n");
04716       return 0;
04717    }
04718    cfg = ast_config_load(config);
04719 
04720    /* We *must* have a config file otherwise stop immediately */
04721    if (!cfg) {
04722       ast_log(LOG_NOTICE, "Unable to load config %s, Skinny disabled\n", config);
04723       return -1;
04724    }
04725    memset(&bindaddr, 0, sizeof(bindaddr));
04726    memset(&default_prefs, 0, sizeof(default_prefs));
04727 
04728    /* Copy the default jb config over global_jbconf */
04729    memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
04730 
04731    /* load the general section */
04732    v = ast_variable_browse(cfg, "general");
04733    while (v) {
04734       /* handle jb conf */
04735       if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) {
04736          v = v->next;
04737          continue;
04738       }
04739 
04740       /* Create the interface list */
04741       if (!strcasecmp(v->name, "bindaddr")) {
04742          if (!(hp = ast_gethostbyname(v->value, &ahp))) {
04743             ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
04744          } else {
04745             memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
04746          }
04747       } else if (!strcasecmp(v->name, "keepalive")) {
04748          keep_alive = atoi(v->value);
04749       } else if (!strcasecmp(v->name, "dateformat")) {
04750          memcpy(date_format, v->value, sizeof(date_format));
04751       } else if (!strcasecmp(v->name, "allow")) {
04752          ast_parse_allow_disallow(&default_prefs, &default_capability, v->value, 1);
04753       } else if (!strcasecmp(v->name, "disallow")) {
04754          ast_parse_allow_disallow(&default_prefs, &default_capability, v->value, 0);
04755       } else if (!strcasecmp(v->name, "bindport") || !strcasecmp(v->name, "port")) {
04756          if (sscanf(v->value, "%d", &ourport) == 1) {
04757             bindaddr.sin_port = htons(ourport);
04758          } else {
04759             ast_log(LOG_WARNING, "Invalid bindport '%s' at line %d of %s\n", v->value, v->lineno, config);
04760          }
04761          if (!strcasecmp(v->name, "port")) { /*! \todo Remove 'port' option after 1.4 */
04762             ast_log(LOG_WARNING, "Option 'port' at line %d of %s has been deprecated.  Please use 'bindport' instead.\n", v->lineno, config);
04763          }
04764       }
04765       v = v->next;
04766    }
04767 
04768    if (ntohl(bindaddr.sin_addr.s_addr)) {
04769       __ourip = bindaddr.sin_addr;
04770    } else {
04771       hp = ast_gethostbyname(ourhost, &ahp);
04772       if (!hp) {
04773          ast_log(LOG_WARNING, "Unable to get our IP address, Skinny disabled\n");
04774          ast_config_destroy(cfg);
04775          return 0;
04776       }
04777       memcpy(&__ourip, hp->h_addr, sizeof(__ourip));
04778    }
04779    if (!ntohs(bindaddr.sin_port)) {
04780       bindaddr.sin_port = ntohs(DEFAULT_SKINNY_PORT);
04781    }
04782    bindaddr.sin_family = AF_INET;
04783 
04784    /* load the device sections */
04785    cat = ast_category_browse(cfg, NULL);
04786    while(cat) {
04787       if (!strcasecmp(cat, "general")) {
04788          /* Nothing to do */
04789 #if 0
04790       } else if (!strncasecmp(cat, "paging-", 7)) {
04791          p = build_paging_device(cat, ast_variable_browse(cfg, cat));
04792          if (p) {
04793          }
04794 #endif
04795       } else {
04796          d = build_device(cat, ast_variable_browse(cfg, cat));
04797          if (d) {
04798             if (option_verbose > 2)
04799                ast_verbose(VERBOSE_PREFIX_3 "Added device '%s'\n", d->name);
04800             ast_mutex_lock(&devicelock);
04801             d->next = devices;
04802             devices = d;
04803             ast_mutex_unlock(&devicelock);
04804          }
04805       }
04806       cat = ast_category_browse(cfg, cat);
04807    }
04808    ast_mutex_lock(&netlock);
04809    if ((skinnysock > -1) && (ntohs(bindaddr.sin_port) != oldport)) {
04810       close(skinnysock);
04811       skinnysock = -1;
04812    }
04813    if (skinnysock < 0) {
04814       skinnysock = socket(AF_INET, SOCK_STREAM, 0);
04815       if(setsockopt(skinnysock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) {
04816          ast_log(LOG_ERROR, "Set Socket Options failed: errno %d, %s\n", errno, strerror(errno));
04817          ast_config_destroy(cfg);
04818          return 0;
04819       }
04820       if (skinnysock < 0) {
04821          ast_log(LOG_WARNING, "Unable to create Skinny socket: %s\n", strerror(errno));
04822       } else {
04823          if (bind(skinnysock, (struct sockaddr *)&bindaddr, sizeof(bindaddr)) < 0) {
04824             ast_log(LOG_WARNING, "Failed to bind to %s:%d: %s\n",
04825                   ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port),
04826                      strerror(errno));
04827             close(skinnysock);
04828             skinnysock = -1;
04829             ast_config_destroy(cfg);
04830             return 0;
04831          }
04832          if (listen(skinnysock,DEFAULT_SKINNY_BACKLOG)) {
04833                ast_log(LOG_WARNING, "Failed to start listening to %s:%d: %s\n",
04834                   ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port),
04835                      strerror(errno));
04836                close(skinnysock);
04837                skinnysock = -1;
04838                ast_config_destroy(cfg);
04839                return 0;
04840          }
04841          if (option_verbose > 1)
04842             ast_verbose(VERBOSE_PREFIX_2 "Skinny listening on %s:%d\n",
04843                ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port));
04844          ast_pthread_create_background(&accept_t,NULL, accept_thread, NULL);
04845       }
04846    }
04847    ast_mutex_unlock(&netlock);
04848    ast_config_destroy(cfg);
04849    return 1;
04850 }
04851 
04852 static void delete_devices(void)
04853 {
04854    struct skinny_device *d, *dlast;
04855    struct skinny_line *l, *llast;
04856    struct skinny_speeddial *sd, *sdlast;
04857    struct skinny_addon *a, *alast;
04858 
04859    ast_mutex_lock(&devicelock);
04860 
04861    /* Delete all devices */
04862    for (d=devices;d;) {
04863       /* Delete all lines for this device */
04864       for (l=d->lines;l;) {
04865          llast = l;
04866          l = l->next;
04867          ast_mutex_destroy(&llast->lock);
04868          free(llast);
04869       }
04870       /* Delete all speeddials for this device */
04871       for (sd=d->speeddials;sd;) {
04872          sdlast = sd;
04873          sd = sd->next;
04874          ast_mutex_destroy(&sdlast->lock);
04875          free(sdlast);
04876       }
04877       /* Delete all addons for this device */
04878       for (a=d->addons;a;) {
04879          alast = a;
04880          a = a->next;
04881          ast_mutex_destroy(&alast->lock);
04882          free(alast);
04883       }
04884       dlast = d;
04885       d = d->next;
04886       free(dlast);
04887    }
04888    devices=NULL;
04889    ast_mutex_unlock(&devicelock);
04890 }
04891 
04892 #if 0
04893 /*
04894  * XXX This never worked properly anyways.
04895  * Let's get rid of it, until we can fix it.
04896  */
04897 static int reload(void)
04898 {
04899    delete_devices();
04900    reload_config();
04901    restart_monitor();
04902    return 0;
04903 }
04904 #endif
04905 
04906 static int load_module(void)
04907 {
04908    int res = 0;
04909 
04910    for (; res < (sizeof(soft_key_template_default) / sizeof(soft_key_template_default[0])); res++) {
04911       soft_key_template_default[res].softKeyEvent = htolel(soft_key_template_default[res].softKeyEvent);
04912    }
04913    /* load and parse config */
04914    res = reload_config();
04915    if (res == -1) {
04916       return AST_MODULE_LOAD_DECLINE;
04917    }
04918 
04919    /* Make sure we can register our skinny channel type */
04920    if (ast_channel_register(&skinny_tech)) {
04921       ast_log(LOG_ERROR, "Unable to register channel class 'Skinny'\n");
04922       return -1;
04923    }
04924 
04925    ast_rtp_proto_register(&skinny_rtp);
04926    ast_cli_register_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
04927    sched = sched_context_create();
04928    if (!sched) {
04929       ast_log(LOG_WARNING, "Unable to create schedule context\n");
04930    }
04931    io = io_context_create();
04932    if (!io) {
04933       ast_log(LOG_WARNING, "Unable to create I/O context\n");
04934    }
04935    /* And start the monitor for the first time */
04936    restart_monitor();
04937 
04938    return res;
04939 }
04940 
04941 static int unload_module(void)
04942 {
04943    struct skinnysession *s, *slast;
04944    struct skinny_device *d;
04945    struct skinny_line *l;
04946    struct skinny_subchannel *sub;
04947 
04948    ast_mutex_lock(&sessionlock);
04949    /* Destroy all the interfaces and free their memory */
04950    s = sessions;
04951    while(s) {
04952       slast = s;
04953       s = s->next;
04954       for (d = slast->device; d; d = d->next) {
04955          for (l = d->lines; l; l = l->next) {
04956             ast_mutex_lock(&l->lock);
04957             for (sub = l->sub; sub; sub = sub->next) {
04958                ast_mutex_lock(&sub->lock);
04959                if (sub->owner) {
04960                   sub->alreadygone = 1;
04961                   ast_softhangup(sub->owner, AST_SOFTHANGUP_APPUNLOAD);
04962                }
04963                ast_mutex_unlock(&sub->lock);
04964             }
04965             ast_mutex_unlock(&l->lock);
04966          }
04967       }
04968       if (slast->fd > -1)
04969          close(slast->fd);
04970       ast_mutex_destroy(&slast->lock);
04971       free(slast);
04972    }
04973    sessions = NULL;
04974    ast_mutex_unlock(&sessionlock);
04975 
04976    delete_devices();
04977 
04978    ast_mutex_lock(&monlock);
04979    if ((monitor_thread != AST_PTHREADT_NULL) && (monitor_thread != AST_PTHREADT_STOP)) {
04980       pthread_cancel(monitor_thread);
04981       pthread_kill(monitor_thread, SIGURG);
04982       pthread_join(monitor_thread, NULL);
04983    }
04984    monitor_thread = AST_PTHREADT_STOP;
04985    ast_mutex_unlock(&monlock);
04986 
04987    ast_mutex_lock(&netlock);
04988    if (accept_t && (accept_t != AST_PTHREADT_STOP)) {
04989       pthread_cancel(accept_t);
04990       pthread_kill(accept_t, SIGURG);
04991       pthread_join(accept_t, NULL);
04992    }
04993    accept_t = AST_PTHREADT_STOP;
04994    ast_mutex_unlock(&netlock);
04995 
04996    ast_rtp_proto_unregister(&skinny_rtp);
04997    ast_channel_unregister(&skinny_tech);
04998    ast_cli_unregister_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
04999 
05000    close(skinnysock);
05001    if (sched)
05002       sched_context_destroy(sched);
05003 
05004    return 0;
05005 }
05006 
05007 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Skinny Client Control Protocol (Skinny)",
05008       .load = load_module,
05009       .unload = unload_module,
05010           );

Generated on Thu Oct 8 21:57:24 2009 for Asterisk - the Open Source PBX by  doxygen 1.5.8