Fri Aug 24 02:22:13 2007

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__, "$Revision$")
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__)
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_7985    302
00829 #define SKINNY_DEVICE_7911    307
00830 #define SKINNY_DEVICE_7961GE     308
00831 #define SKINNY_DEVICE_7941GE     309
00832 #define SKINNY_DEVICE_7921    365
00833 #define SKINNY_DEVICE_7905    20000
00834 #define SKINNY_DEVICE_7920    30002
00835 #define SKINNY_DEVICE_7970    30006
00836 #define SKINNY_DEVICE_7912    30007
00837 #define SKINNY_DEVICE_7902    30008
00838 #define SKINNY_DEVICE_CIPC    30016 /* Cisco IP Communicator */
00839 #define SKINNY_DEVICE_7961    30018
00840 #define SKINNY_DEVICE_7936    30019
00841 #define SKINNY_DEVICE_SCCPGATEWAY_AN   30027 /* ??? */
00842 #define SKINNY_DEVICE_SCCPGATEWAY_BRI  30028 /* ??? */
00843 
00844 #define SKINNY_SPEAKERON 1
00845 #define SKINNY_SPEAKEROFF 2
00846 
00847 #define SKINNY_MICON 1
00848 #define SKINNY_MICOFF 2
00849 
00850 #define SKINNY_OFFHOOK 1
00851 #define SKINNY_ONHOOK 2
00852 #define SKINNY_RINGOUT 3
00853 #define SKINNY_RINGIN 4
00854 #define SKINNY_CONNECTED 5
00855 #define SKINNY_BUSY 6
00856 #define SKINNY_CONGESTION 7
00857 #define SKINNY_HOLD 8
00858 #define SKINNY_CALLWAIT 9
00859 #define SKINNY_TRANSFER 10
00860 #define SKINNY_PARK 11
00861 #define SKINNY_PROGRESS 12
00862 #define SKINNY_INVALID 14
00863 
00864 #define SKINNY_SILENCE     0x00
00865 #define SKINNY_DIALTONE    0x21
00866 #define SKINNY_BUSYTONE    0x23
00867 #define SKINNY_ALERT    0x24
00868 #define SKINNY_REORDER     0x25
00869 #define SKINNY_CALLWAITTONE   0x2D
00870 #define SKINNY_NOTONE      0x7F
00871 
00872 #define SKINNY_LAMP_OFF 1
00873 #define SKINNY_LAMP_ON 2
00874 #define SKINNY_LAMP_WINK 3
00875 #define SKINNY_LAMP_FLASH 4
00876 #define SKINNY_LAMP_BLINK 5
00877 
00878 #define SKINNY_RING_OFF 1
00879 #define SKINNY_RING_INSIDE 2
00880 #define SKINNY_RING_OUTSIDE 3
00881 #define SKINNY_RING_FEATURE 4
00882 
00883 #define TYPE_TRUNK 1
00884 #define TYPE_LINE 2
00885 
00886 /* Skinny rtp stream modes. Do we really need this? */
00887 #define SKINNY_CX_SENDONLY 0
00888 #define SKINNY_CX_RECVONLY 1
00889 #define SKINNY_CX_SENDRECV 2
00890 #define SKINNY_CX_CONF     3
00891 #define SKINNY_CX_CONFERENCE  3
00892 #define SKINNY_CX_MUTE     4
00893 #define SKINNY_CX_INACTIVE 4
00894 
00895 #if 0
00896 static char *skinny_cxmodes[] = {
00897    "sendonly",
00898    "recvonly",
00899    "sendrecv",
00900    "confrnce",
00901    "inactive"
00902 };
00903 #endif
00904 
00905 /* driver scheduler */
00906 static struct sched_context *sched = NULL;
00907 static struct io_context *io;
00908 
00909 /* Protect the monitoring thread, so only one process can kill or start it, and not
00910    when it's doing something critical. */
00911 AST_MUTEX_DEFINE_STATIC(monlock);
00912 /* Protect the network socket */
00913 AST_MUTEX_DEFINE_STATIC(netlock);
00914 /* Protect the session list */
00915 AST_MUTEX_DEFINE_STATIC(sessionlock);
00916 /* Protect the device list */
00917 AST_MUTEX_DEFINE_STATIC(devicelock);
00918 #if 0
00919 /* Protect the paging device list */
00920 AST_MUTEX_DEFINE_STATIC(pagingdevicelock);
00921 #endif
00922 
00923 /* This is the thread for the monitor which checks for input on the channels
00924    which are not currently in use. */
00925 static pthread_t monitor_thread = AST_PTHREADT_NULL;
00926 
00927 /* Wait up to 16 seconds for first digit */
00928 static int firstdigittimeout = 16000;
00929 
00930 /* How long to wait for following digits */
00931 static int gendigittimeout = 8000;
00932 
00933 /* How long to wait for an extra digit, if there is an ambiguous match */
00934 static int matchdigittimeout = 3000;
00935 
00936 struct skinny_subchannel {
00937    ast_mutex_t lock;
00938    struct ast_channel *owner;
00939    struct ast_rtp *rtp;
00940    struct ast_rtp *vrtp;
00941    unsigned int callid;
00942    /* time_t lastouttime; */        /* Unused */
00943    int progress;
00944    int ringing;
00945    int onhold;
00946    /* int lastout; */            /* Unused */
00947    int cxmode;
00948    int nat;
00949    int outgoing;
00950    int alreadygone;
00951 
00952    struct skinny_subchannel *next;
00953    struct skinny_line *parent;
00954 };
00955 
00956 struct skinny_line {
00957    ast_mutex_t lock;
00958    char name[80];
00959    char label[24];               /* Label that shows next to the line buttons */
00960    char accountcode[AST_MAX_ACCOUNT_CODE];
00961    char exten[AST_MAX_EXTENSION];         /* Extension where to start */
00962    char context[AST_MAX_CONTEXT];
00963    char language[MAX_LANGUAGE];
00964    char cid_num[AST_MAX_EXTENSION];    /* Caller*ID */
00965    char cid_name[AST_MAX_EXTENSION];      /* Caller*ID */
00966    char lastcallerid[AST_MAX_EXTENSION];     /* Last Caller*ID */
00967    char call_forward[AST_MAX_EXTENSION];
00968    char mailbox[AST_MAX_EXTENSION];
00969    char mohinterpret[MAX_MUSICCLASS];
00970    char mohsuggest[MAX_MUSICCLASS];
00971    char lastnumberdialed[AST_MAX_EXTENSION]; /* Last number that was dialed - used for redial */
00972    int curtone;               /* Current tone being played */
00973    ast_group_t callgroup;
00974    ast_group_t pickupgroup;
00975    int callwaiting;
00976    int transfer;
00977    int threewaycalling;
00978    int mwiblink;
00979    int cancallforward;
00980    int callreturn;
00981    int dnd; /* How does this affect callwait?  Do we just deny a skinny_request if we're dnd? */
00982    int hascallerid;
00983    int hidecallerid;
00984    int amaflags;
00985    int type;
00986    int instance;
00987    int group;
00988    int needdestroy;
00989    int capability;
00990    int nonCodecCapability;
00991    int onhooktime;
00992    int msgstate;              /* voicemail message state */
00993    int immediate;
00994    int hookstate;
00995    int nat;
00996 
00997    struct ast_codec_pref prefs;
00998    struct skinny_subchannel *sub;
00999    struct skinny_line *next;
01000    struct skinny_device *parent;
01001 };
01002 
01003 struct skinny_speeddial {
01004    ast_mutex_t lock;
01005    char label[42];
01006    char exten[AST_MAX_EXTENSION];
01007    int instance;
01008 
01009    struct skinny_speeddial *next;
01010    struct skinny_device *parent;
01011 };
01012 
01013 struct skinny_addon {
01014    ast_mutex_t lock;
01015    char type[10];
01016 
01017    struct skinny_addon *next;
01018    struct skinny_device *parent;
01019 };
01020 
01021 static struct skinny_device {
01022    /* A device containing one or more lines */
01023    char name[80];
01024    char id[16];
01025    char version_id[16];
01026    int type;
01027    int registered;
01028    int lastlineinstance;
01029    int lastcallreference;
01030    int capability;
01031    char exten[AST_MAX_EXTENSION];
01032    struct sockaddr_in addr;
01033    struct in_addr ourip;
01034    struct skinny_line *lines;
01035    struct skinny_speeddial *speeddials;
01036    struct skinny_addon *addons;
01037    struct ast_codec_pref prefs;
01038    struct ast_ha *ha;
01039    struct skinnysession *session;
01040    struct skinny_device *next;
01041 } *devices = NULL;
01042 
01043 struct skinny_paging_device {
01044    char name[80];
01045    char id[16];
01046    struct skinny_device ** devices;
01047    struct skinny_paging_device *next;
01048 };
01049 
01050 static struct skinnysession {
01051    pthread_t t;
01052    ast_mutex_t lock;
01053    struct sockaddr_in sin;
01054    int fd;
01055    char inbuf[SKINNY_MAX_PACKET];
01056    char outbuf[SKINNY_MAX_PACKET];
01057    struct skinny_device *device;
01058    struct skinnysession *next;
01059 } *sessions = NULL;
01060 
01061 static struct ast_channel *skinny_request(const char *type, int format, void *data, int *cause);
01062 static int skinny_call(struct ast_channel *ast, char *dest, int timeout);
01063 static int skinny_hangup(struct ast_channel *ast);
01064 static int skinny_answer(struct ast_channel *ast);
01065 static struct ast_frame *skinny_read(struct ast_channel *ast);
01066 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame);
01067 static int skinny_indicate(struct ast_channel *ast, int ind, const void *data, size_t datalen);
01068 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
01069 static int skinny_senddigit_begin(struct ast_channel *ast, char digit);
01070 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration);
01071 static int handle_time_date_req_message(struct skinny_req *req, struct skinnysession *s);
01072 
01073 static const struct ast_channel_tech skinny_tech = {
01074    .type = "Skinny",
01075    .description = tdesc,
01076    .capabilities = ((AST_FORMAT_MAX_AUDIO << 1) - 1),
01077    .properties = AST_CHAN_TP_WANTSJITTER | AST_CHAN_TP_CREATESJITTER,
01078    .requester = skinny_request,
01079    .call = skinny_call,
01080    .hangup = skinny_hangup,
01081    .answer = skinny_answer,
01082    .read = skinny_read,
01083    .write = skinny_write,
01084    .indicate = skinny_indicate,
01085    .fixup = skinny_fixup,
01086    .send_digit_begin = skinny_senddigit_begin,
01087    .send_digit_end = skinny_senddigit_end,
01088 /* .bridge = ast_rtp_bridge, */
01089 };
01090 
01091 static void *get_button_template(struct skinnysession *s, struct button_definition_template *btn)
01092 {
01093    struct skinny_device *d = s->device;
01094    struct skinny_addon *a = d->addons;
01095    int i;
01096 
01097    switch (d->type) {
01098       case SKINNY_DEVICE_30SPPLUS:
01099       case SKINNY_DEVICE_30VIP:
01100          /* 13 rows, 2 columns */
01101          for (i = 0; i < 4; i++)
01102             (btn++)->buttonDefinition = BT_LINE;
01103          (btn++)->buttonDefinition = BT_REDIAL;
01104          (btn++)->buttonDefinition = BT_VOICEMAIL;
01105          (btn++)->buttonDefinition = BT_CALLPARK;
01106          (btn++)->buttonDefinition = BT_FORWARDALL;
01107          (btn++)->buttonDefinition = BT_CONFERENCE;
01108          for (i = 0; i < 4; i++)
01109             (btn++)->buttonDefinition = BT_NONE;
01110          for (i = 0; i < 13; i++)
01111             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01112          
01113          break;
01114       case SKINNY_DEVICE_12SPPLUS:
01115       case SKINNY_DEVICE_12SP:
01116       case SKINNY_DEVICE_12:
01117          /* 6 rows, 2 columns */
01118          for (i = 0; i < 2; i++)
01119             (btn++)->buttonDefinition = BT_LINE;
01120          (btn++)->buttonDefinition = BT_REDIAL;
01121          for (i = 0; i < 3; i++)
01122             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01123          (btn++)->buttonDefinition = BT_HOLD;
01124          (btn++)->buttonDefinition = BT_TRANSFER;
01125          (btn++)->buttonDefinition = BT_FORWARDALL;
01126          (btn++)->buttonDefinition = BT_CALLPARK;
01127          (btn++)->buttonDefinition = BT_VOICEMAIL;
01128          (btn++)->buttonDefinition = BT_CONFERENCE;
01129          break;
01130       case SKINNY_DEVICE_7910:
01131          (btn++)->buttonDefinition = BT_LINE;
01132          (btn++)->buttonDefinition = BT_HOLD;
01133          (btn++)->buttonDefinition = BT_TRANSFER;
01134          (btn++)->buttonDefinition = BT_DISPLAY;
01135          (btn++)->buttonDefinition = BT_VOICEMAIL;
01136          (btn++)->buttonDefinition = BT_CONFERENCE;
01137          (btn++)->buttonDefinition = BT_FORWARDALL;
01138          for (i = 0; i < 2; i++)
01139             (btn++)->buttonDefinition = BT_SPEEDDIAL;
01140          (btn++)->buttonDefinition = BT_REDIAL;
01141          break;
01142       case SKINNY_DEVICE_7960:
01143       case SKINNY_DEVICE_7961:
01144       case SKINNY_DEVICE_7961GE:
01145          for (i = 0; i < 6; i++)
01146             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01147          break;
01148       case SKINNY_DEVICE_7940:
01149       case SKINNY_DEVICE_7941:
01150       case SKINNY_DEVICE_7941GE:
01151          for (i = 0; i < 2; i++)
01152             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01153          break;
01154       case SKINNY_DEVICE_7935:
01155       case SKINNY_DEVICE_7936:
01156          for (i = 0; i < 2; i++)
01157             (btn++)->buttonDefinition = BT_LINE;
01158          break;
01159       case SKINNY_DEVICE_ATA186:
01160          (btn++)->buttonDefinition = BT_LINE;
01161          break;
01162       case SKINNY_DEVICE_7970:
01163       case SKINNY_DEVICE_7971:
01164       case SKINNY_DEVICE_CIPC:
01165          for (i = 0; i < 8; i++)
01166             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01167          break;
01168       case SKINNY_DEVICE_7985:
01169          /* XXX I have no idea what the buttons look like on these. */
01170          ast_log(LOG_WARNING, "Unsupported device type '%d (7985)' found.\n", d->type);
01171          break;
01172       case SKINNY_DEVICE_7912:
01173       case SKINNY_DEVICE_7911:
01174       case SKINNY_DEVICE_7905:
01175          (btn++)->buttonDefinition = BT_LINE;
01176          (btn++)->buttonDefinition = BT_HOLD;
01177          break;
01178       case SKINNY_DEVICE_7920:
01179       case SKINNY_DEVICE_7921:
01180          /* XXX I don't know if this is right. */
01181          for (i = 0; i < 4; i++)
01182             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01183          break;
01184       case SKINNY_DEVICE_7902:
01185          ast_log(LOG_WARNING, "Unsupported device type '%d (7902)' found.\n", d->type);
01186          break;
01187       case SKINNY_DEVICE_SCCPGATEWAY_AN:
01188       case SKINNY_DEVICE_SCCPGATEWAY_BRI:
01189          ast_log(LOG_WARNING, "Unsupported device type '%d (SCCP gateway)' found.\n", d->type);
01190          break;
01191       default:
01192          ast_log(LOG_WARNING, "Unknown device type '%d' found.\n", d->type);
01193          break;
01194    }
01195 
01196    for (a = d->addons; a; a = a->next) {
01197       if (!strcasecmp(a->type, "7914")) {
01198          for (i = 0; i < 14; i++)
01199             (btn++)->buttonDefinition = BT_CUST_LINESPEEDDIAL;
01200       } else {
01201          ast_log(LOG_WARNING, "Unknown addon type '%s' found.  Skipping.\n", a->type);
01202       }
01203    }
01204 
01205    return btn;
01206 }
01207 
01208 static struct skinny_req *req_alloc(size_t size, int response_message)
01209 {
01210    struct skinny_req *req;
01211 
01212    if (!(req = ast_calloc(1, skinny_header_size + size + 4)))
01213       return NULL;
01214 
01215    req->len = htolel(size+4);
01216    req->e = htolel(response_message);
01217 
01218    return req;
01219 }
01220 
01221 static struct skinny_line *find_line_by_instance(struct skinny_device *d, int instance)
01222 {
01223    struct skinny_line *l;
01224 
01225    if (!instance)
01226       instance = 1;
01227 
01228    for (l = d->lines; l; l = l->next) {
01229       if (l->instance == instance)
01230          break;
01231    }
01232 
01233    if (!l) {
01234       ast_log(LOG_WARNING, "Could not find line with instance '%d' on device '%s'\n", instance, d->name);
01235    }
01236    return l;
01237 }
01238 
01239 static struct skinny_line *find_line_by_name(const char *dest)
01240 {
01241    struct skinny_line *l;
01242    struct skinny_device *d;
01243    char line[256];
01244    char *at;
01245    char *device;
01246 
01247    ast_copy_string(line, dest, sizeof(line));
01248    at = strchr(line, '@');
01249    if (!at) {
01250       ast_log(LOG_NOTICE, "Device '%s' has no @ (at) sign!\n", dest);
01251       return NULL;
01252    }
01253    *at++ = '\0';
01254    device = at;
01255    ast_mutex_lock(&devicelock);
01256    for (d = devices; d; d = d->next) {
01257       if (!strcasecmp(d->name, device)) {
01258          if (skinnydebug)
01259             ast_verbose("Found device: %s\n", d->name);
01260          /* Found the device */
01261          for (l = d->lines; l; l = l->next) {
01262             /* Search for the right line */
01263             if (!strcasecmp(l->name, line)) {
01264                ast_mutex_unlock(&devicelock);
01265                return l;
01266             }
01267          }
01268       }
01269    }
01270    /* Device not found */
01271    ast_mutex_unlock(&devicelock);
01272    return NULL;
01273 }
01274 
01275 /* It's quicker/easier to find the subchannel when we know the instance number too */
01276 static struct skinny_subchannel *find_subchannel_by_instance_reference(struct skinny_device *d, int instance, int reference)
01277 {
01278    struct skinny_line *l = find_line_by_instance(d, instance);
01279    struct skinny_subchannel *sub;
01280 
01281    if (!l) {
01282       return NULL;
01283    }
01284 
01285    if (!reference)
01286       sub = l->sub;
01287    else {
01288       for (sub = l->sub; sub; sub = sub->next) {
01289          if (sub->callid == reference)
01290             break;
01291       }
01292    }
01293 
01294    if (!sub) {
01295       ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s'\n", reference, d->name);
01296    }
01297    return sub;
01298 }
01299 
01300 /* Find the subchannel when we only have the callid - this shouldn't happen often */
01301 static struct skinny_subchannel *find_subchannel_by_reference(struct skinny_device *d, int reference)
01302 {
01303    struct skinny_line *l;
01304    struct skinny_subchannel *sub = NULL;
01305 
01306    for (l = d->lines; l; l = l->next) {
01307       for (sub = l->sub; sub; sub = sub->next) {
01308          if (sub->callid == reference)
01309             break;
01310       }
01311       if (sub)
01312          break;
01313    }
01314 
01315    if (!l) {
01316       ast_log(LOG_WARNING, "Could not find any lines that contained a subchannel with reference '%d' on device '%s'\n", reference, d->name);
01317    } else {
01318       if (!sub) {
01319          ast_log(LOG_WARNING, "Could not find subchannel with reference '%d' on '%s@%s'\n", reference, l->name, d->name);
01320       }
01321    }
01322    return sub;
01323 }
01324 
01325 static struct skinny_speeddial *find_speeddial_by_instance(struct skinny_device *d, int instance)
01326 {
01327    struct skinny_speeddial *sd;
01328 
01329    for (sd = d->speeddials; sd; sd = sd->next) {
01330       if (sd->instance == instance)
01331          break;
01332    }
01333 
01334    if (!sd) {
01335       ast_log(LOG_WARNING, "Could not find speeddial with instance '%d' on device '%s'\n", instance, d->name);
01336    }
01337    return sd;
01338 }
01339 
01340 static int codec_skinny2ast(enum skinny_codecs skinnycodec)
01341 {
01342    switch (skinnycodec) {
01343    case SKINNY_CODEC_ALAW:
01344       return AST_FORMAT_ALAW;
01345    case SKINNY_CODEC_ULAW:
01346       return AST_FORMAT_ULAW;
01347    case SKINNY_CODEC_G723_1:
01348       return AST_FORMAT_G723_1;
01349    case SKINNY_CODEC_G729A:
01350       return AST_FORMAT_G729A;
01351    case SKINNY_CODEC_G726_32:
01352       return AST_FORMAT_G726_AAL2; /* XXX Is this right? */
01353    case SKINNY_CODEC_H261:
01354       return AST_FORMAT_H261;
01355    case SKINNY_CODEC_H263:
01356       return AST_FORMAT_H263;
01357    default:
01358       return 0;
01359    }
01360 }
01361 
01362 static int codec_ast2skinny(int astcodec)
01363 {
01364    switch (astcodec) {
01365    case AST_FORMAT_ALAW:
01366       return SKINNY_CODEC_ALAW;
01367    case AST_FORMAT_ULAW:
01368       return SKINNY_CODEC_ULAW;
01369    case AST_FORMAT_G723_1:
01370       return SKINNY_CODEC_G723_1;
01371    case AST_FORMAT_G729A:
01372       return SKINNY_CODEC_G729A;
01373    case AST_FORMAT_G726_AAL2: /* XXX Is this right? */
01374       return SKINNY_CODEC_G726_32;
01375    case AST_FORMAT_H261:
01376       return SKINNY_CODEC_H261;
01377    case AST_FORMAT_H263:
01378       return SKINNY_CODEC_H263;
01379    default:
01380       return 0;
01381    }
01382 }
01383 
01384 
01385 static int skinny_register(struct skinny_req *req, struct skinnysession *s)
01386 {
01387    struct skinny_device *d;
01388    struct sockaddr_in sin;
01389    socklen_t slen;
01390 
01391    ast_mutex_lock(&devicelock);
01392    for (d = devices; d; d = d->next) {
01393       if (!strcasecmp(req->data.reg.name, d->id)
01394             && ast_apply_ha(d->ha, &(s->sin))) {
01395          s->device = d;
01396          d->type = letohl(req->data.reg.type);
01397          if (ast_strlen_zero(d->version_id)) {
01398             ast_copy_string(d->version_id, version_id, sizeof(d->version_id));
01399          }
01400          d->registered = 1;
01401          d->session = s;
01402 
01403          slen = sizeof(sin);
01404          if (getsockname(s->fd, (struct sockaddr *)&sin, &slen)) {
01405             ast_log(LOG_WARNING, "Cannot get socket name\n");
01406             sin.sin_addr = __ourip;
01407          }
01408          d->ourip = sin.sin_addr;
01409          break;
01410       }
01411    }
01412    ast_mutex_unlock(&devicelock);
01413    if (!d) {
01414       return 0;
01415    }
01416    return 1;
01417 }
01418 
01419 static int skinny_unregister(struct skinny_req *req, struct skinnysession *s)
01420 {
01421    struct skinny_device *d;
01422 
01423    d = s->device;
01424 
01425    if (d) {
01426       d->session = NULL;
01427       d->registered = 0;
01428    }
01429 
01430    return -1; /* main loop will destroy the session */
01431 }
01432 
01433 static int transmit_response(struct skinnysession *s, struct skinny_req *req)
01434 {
01435    int res = 0;
01436 
01437    if (!s) {
01438       ast_log(LOG_WARNING, "Asked to transmit to a non-existant session!\n");
01439       return -1;
01440    }
01441 
01442    ast_mutex_lock(&s->lock);
01443 
01444    if (skinnydebug)
01445       ast_log(LOG_VERBOSE, "writing packet type %04X (%d bytes) to socket %d\n", letohl(req->e), letohl(req->len)+8, s->fd);
01446 
01447    if (letohl(req->len > SKINNY_MAX_PACKET) || letohl(req->len < 0)) {
01448       ast_log(LOG_WARNING, "transmit_response: the length of the request is out of bounds\n");
01449       return -1;
01450    }
01451 
01452    memset(s->outbuf,0,sizeof(s->outbuf));
01453    memcpy(s->outbuf, req, skinny_header_size);
01454    memcpy(s->outbuf+skinny_header_size, &req->data, letohl(req->len));
01455 
01456    res = write(s->fd, s->outbuf, letohl(req->len)+8);
01457 
01458    if (res != letohl(req->len)+8) {
01459       ast_log(LOG_WARNING, "Transmit: write only sent %d out of %d bytes: %s\n", res, letohl(req->len)+8, strerror(errno));
01460       if (res == -1) {
01461          if (skinnydebug)
01462             ast_log(LOG_WARNING, "Transmit: Skinny Client was lost, unregistering\n");
01463          skinny_unregister(NULL, s);
01464       }
01465       
01466    }
01467    
01468    ast_mutex_unlock(&s->lock);
01469    return 1;
01470 }
01471 
01472 static void transmit_speaker_mode(struct skinnysession *s, int mode)
01473 {
01474    struct skinny_req *req;
01475 
01476    if (!(req = req_alloc(sizeof(struct set_speaker_message), SET_SPEAKER_MESSAGE)))
01477       return;
01478 
01479    req->data.setspeaker.mode = htolel(mode);
01480    transmit_response(s, req);
01481 }
01482 /*
01483 static void transmit_microphone_mode(struct skinnysession *s, int mode)
01484 {
01485    struct skinny_req *req;
01486 
01487    if (!(req = req_alloc(sizeof(struct set_microphone_message), SET_MICROPHONE_MESSAGE)))
01488       return;
01489 
01490    req->data.setmicrophone.mode = htolel(mode);
01491    transmit_response(s, req);
01492 }
01493 */
01494 
01495 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)
01496 {
01497    struct skinny_req *req;
01498 
01499    if (!(req = req_alloc(sizeof(struct call_info_message), CALL_INFO_MESSAGE)))
01500       return;
01501 
01502    if (skinnydebug)
01503          ast_verbose("Setting Callinfo to %s(%s) from %s(%s) on %s(%d)\n", fromname, fromnum, toname, tonum, s->device->name, instance);
01504 
01505    if (fromname) {
01506       ast_copy_string(req->data.callinfo.callingPartyName, fromname, sizeof(req->data.callinfo.callingPartyName));
01507    }
01508    if (fromnum) {
01509       ast_copy_string(req->data.callinfo.callingParty, fromnum, sizeof(req->data.callinfo.callingParty));
01510    }
01511    if (toname) {
01512       ast_copy_string(req->data.callinfo.calledPartyName, toname, sizeof(req->data.callinfo.calledPartyName));
01513    }
01514    if (tonum) {
01515       ast_copy_string(req->data.callinfo.calledParty, tonum, sizeof(req->data.callinfo.calledParty));
01516    }
01517    req->data.callinfo.instance = htolel(instance);
01518    req->data.callinfo.reference = htolel(callid);
01519    req->data.callinfo.type = htolel(calltype);
01520    transmit_response(s, req);
01521 }
01522 
01523 static void transmit_connect(struct skinnysession *s, struct skinny_subchannel *sub)
01524 {
01525    struct skinny_req *req;
01526    struct skinny_line *l = sub->parent;
01527    struct ast_format_list fmt;
01528 
01529    if (!(req = req_alloc(sizeof(struct open_receive_channel_message), OPEN_RECEIVE_CHANNEL_MESSAGE)))
01530       return;
01531 
01532    fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
01533 
01534    req->data.openreceivechannel.conferenceId = htolel(sub->callid);
01535    req->data.openreceivechannel.partyId = htolel(sub->callid);
01536    req->data.openreceivechannel.packets = htolel(fmt.cur_ms);
01537    req->data.openreceivechannel.capability = htolel(codec_ast2skinny(fmt.bits));
01538    req->data.openreceivechannel.echo = htolel(0);
01539    req->data.openreceivechannel.bitrate = htolel(0);
01540    transmit_response(s, req);
01541 }
01542 
01543 static void transmit_tone(struct skinnysession *s, int tone, int instance, int reference)
01544 {
01545    struct skinny_req *req;
01546 
01547    if (tone == SKINNY_NOTONE) {
01548       /* This is bad, mmm'kay? */
01549       return;
01550    }
01551 
01552    if (tone > 0) {
01553       if (!(req = req_alloc(sizeof(struct start_tone_message), START_TONE_MESSAGE)))
01554          return;
01555       req->data.starttone.tone = htolel(tone);
01556       req->data.starttone.instance = htolel(instance);
01557       req->data.starttone.reference = htolel(reference);
01558    } else {
01559       if (!(req = req_alloc(sizeof(struct stop_tone_message), STOP_TONE_MESSAGE)))
01560          return;
01561       req->data.stoptone.instance = htolel(instance);
01562       req->data.stoptone.reference = htolel(reference);
01563    }
01564 
01565    if (tone > 0) {
01566       req->data.starttone.tone = htolel(tone);
01567    }
01568    transmit_response(s, req);
01569 }
01570 
01571 static void transmit_selectsoftkeys(struct skinnysession *s, int instance, int callid, int softkey)
01572 {
01573    struct skinny_req *req;
01574 
01575    if (!(req = req_alloc(sizeof(struct select_soft_keys_message), SELECT_SOFT_KEYS_MESSAGE)))
01576       return;
01577 
01578    req->data.selectsoftkey.instance = htolel(instance);
01579    req->data.selectsoftkey.reference = htolel(callid);
01580    req->data.selectsoftkey.softKeySetIndex = htolel(softkey);
01581    req->data.selectsoftkey.validKeyMask = htolel(0xFFFFFFFF);
01582    transmit_response(s, req);
01583 }
01584 
01585 static void transmit_lamp_indication(struct skinnysession *s, int stimulus, int instance, int indication)
01586 {
01587    struct skinny_req *req;
01588 
01589    if (!(req = req_alloc(sizeof(struct set_lamp_message), SET_LAMP_MESSAGE)))
01590       return;
01591 
01592    req->data.setlamp.stimulus = htolel(stimulus);
01593    req->data.setlamp.stimulusInstance = htolel(instance);
01594    req->data.setlamp.deviceStimulus = htolel(indication);
01595    transmit_response(s, req);
01596 }
01597 
01598 static void transmit_ringer_mode(struct skinnysession *s, int mode)
01599 {
01600    struct skinny_req *req;
01601 
01602    if (skinnydebug)
01603       ast_verbose("Setting ringer mode to '%d'.\n", mode);
01604 
01605    if (!(req = req_alloc(sizeof(struct set_ringer_message), SET_RINGER_MESSAGE)))
01606       return;
01607 
01608    req->data.setringer.ringerMode = htolel(mode);
01609    /* XXX okay, I don't quite know what this is, but here's what happens (on a 7960).
01610       Note: The phone will always show as ringing on the display.
01611 
01612       1: phone will audibly ring over and over
01613       2: phone will audibly ring only once
01614       any other value, will NOT cause the phone to audibly ring
01615    */
01616    req->data.setringer.unknown1 = htolel(1);
01617    /* XXX the value here doesn't seem to change anything.  Must be higher than 0.
01618       Perhaps a packet capture can shed some light on this. */
01619    req->data.setringer.unknown2 = htolel(1);
01620    transmit_response(s, req);
01621 }
01622 
01623 static void transmit_displaymessage(struct skinnysession *s, const char *text, int instance, int reference)
01624 {
01625    struct skinny_req *req;
01626 
01627    if (text == 0) {
01628       if (!(req = req_alloc(0, CLEAR_DISPLAY_MESSAGE)))
01629          return;
01630 
01631       req->data.clearpromptstatus.lineInstance = instance;
01632       req->data.clearpromptstatus.callReference = reference;
01633 
01634       if (skinnydebug)
01635          ast_verbose("Clearing Display\n");
01636    } else {
01637       if (!(req = req_alloc(sizeof(struct displaytext_message), DISPLAYTEXT_MESSAGE)))
01638          return;
01639 
01640       ast_copy_string(req->data.displaytext.text, text, sizeof(req->data.displaytext.text));
01641       if (skinnydebug)
01642          ast_verbose("Displaying message '%s'\n", req->data.displaytext.text);
01643    }
01644 
01645    transmit_response(s, req);
01646 }
01647 
01648 static void transmit_displaynotify(struct skinnysession *s, const char *text, int t)
01649 {
01650    struct skinny_req *req;
01651 
01652    if (!(req = req_alloc(sizeof(struct display_notify_message), DISPLAY_NOTIFY_MESSAGE)))
01653       return;
01654 
01655    ast_copy_string(req->data.displaynotify.displayMessage, text, sizeof(req->data.displaynotify.displayMessage));
01656    req->data.displaynotify.displayTimeout = htolel(t);
01657 
01658    if (skinnydebug)
01659       ast_verbose("Displaying notify '%s'\n", text);
01660 
01661    transmit_response(s, req);
01662 }
01663 
01664 static void transmit_displaypromptstatus(struct skinnysession *s, const char *text, int t, int instance, int callid)
01665 {
01666    struct skinny_req *req;
01667 
01668    if (text == 0) {
01669       if (!(req = req_alloc(sizeof(struct clear_prompt_message), CLEAR_PROMPT_MESSAGE)))
01670          return;
01671 
01672       req->data.clearpromptstatus.lineInstance = htolel(instance);
01673       req->data.clearpromptstatus.callReference = htolel(callid);
01674 
01675       if (skinnydebug)
01676          ast_verbose("Clearing Prompt\n");
01677    } else {
01678       if (!(req = req_alloc(sizeof(struct display_prompt_status_message), DISPLAY_PROMPT_STATUS_MESSAGE)))
01679          return;
01680 
01681       ast_copy_string(req->data.displaypromptstatus.promptMessage, text, sizeof(req->data.displaypromptstatus.promptMessage));
01682       req->data.displaypromptstatus.messageTimeout = htolel(t);
01683       req->data.displaypromptstatus.lineInstance = htolel(instance);
01684       req->data.displaypromptstatus.callReference = htolel(callid);
01685 
01686       if (skinnydebug)
01687          ast_verbose("Displaying Prompt Status '%s'\n", text);
01688    }
01689 
01690    transmit_response(s, req);
01691 }
01692 
01693 static void transmit_dialednumber(struct skinnysession *s, const char *text, int instance, int callid)
01694 {
01695    struct skinny_req *req;
01696 
01697    if (!(req = req_alloc(sizeof(struct dialed_number_message), DIALED_NUMBER_MESSAGE)))
01698       return;
01699 
01700    ast_copy_string(req->data.dialednumber.dialedNumber, text, sizeof(req->data.dialednumber.dialedNumber));
01701    req->data.dialednumber.lineInstance = htolel(instance);
01702    req->data.dialednumber.callReference = htolel(callid);
01703 
01704    transmit_response(s, req);
01705 }
01706 
01707 static void transmit_callstate(struct skinnysession *s, int instance, int state, unsigned callid)
01708 {
01709    struct skinny_req *req;
01710 
01711    if (state == SKINNY_ONHOOK) {
01712       if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
01713          return;
01714 
01715       req->data.closereceivechannel.conferenceId = htolel(callid);
01716       req->data.closereceivechannel.partyId = htolel(callid);
01717       transmit_response(s, req);
01718 
01719       if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
01720          return;
01721 
01722       req->data.stopmedia.conferenceId = htolel(callid);
01723       req->data.stopmedia.passThruPartyId = htolel(callid);
01724       transmit_response(s, req);
01725 
01726       transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
01727 
01728       transmit_displaypromptstatus(s, NULL, 0, instance, callid);
01729    }
01730 
01731    if (!(req = req_alloc(sizeof(struct call_state_message), CALL_STATE_MESSAGE)))
01732       return;
01733 
01734    req->data.callstate.callState = htolel(state);
01735    req->data.callstate.lineInstance = htolel(instance);
01736    req->data.callstate.callReference = htolel(callid);
01737    transmit_response(s, req);
01738 
01739    if (state == SKINNY_ONHOOK) {
01740       transmit_selectsoftkeys(s, 0, 0, KEYDEF_ONHOOK);
01741    }
01742 
01743    if (state == SKINNY_OFFHOOK || state == SKINNY_ONHOOK) {
01744       if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
01745          return;
01746 
01747       req->data.activatecallplane.lineInstance = htolel(instance);
01748       transmit_response(s, req);
01749    }
01750 }
01751 
01752 /*
01753 static int has_voicemail(struct skinny_line *l)
01754 {
01755    return ast_app_has_voicemail(l->mailbox, NULL);
01756 }
01757 */
01758 
01759 static void do_housekeeping(struct skinnysession *s)
01760 {
01761 /*
01762    int new;
01763    int old;
01764    struct skinny_device *d = s->device;
01765    struct skinny_line *l;
01766 */
01767 
01768    /* Update time on device */
01769    handle_time_date_req_message(NULL, s);
01770 
01771 /*
01772    for (l = d->lines; l; l = l->next) {
01773       if (has_voicemail(l)) {
01774          if (skinnydebug)
01775             ast_verbose("Checking for voicemail Skinny %s@%s\n", l->name, d->name);
01776          ast_app_inboxcount(l->mailbox, &new, &old);
01777          if (skinnydebug)
01778             ast_verbose("Skinny %s@%s has voicemail!\n", l->name, d->name);
01779          transmit_lamp_indication(s, STIMULUS_VOICEMAIL, l->instance, l->mwiblink?SKINNY_LAMP_BLINK:SKINNY_LAMP_ON);
01780       } else {
01781          transmit_lamp_indication(s, STIMULUS_VOICEMAIL, l->instance, SKINNY_LAMP_OFF);
01782       }
01783    }
01784 */
01785 }
01786 
01787 /* I do not believe skinny can deal with video.
01788    Anyone know differently? */
01789 /* Yes, it can.  Currently 7985 and Cisco VT Advantage do video. */
01790 static enum ast_rtp_get_result skinny_get_vrtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
01791 {
01792    struct skinny_subchannel *sub = NULL;
01793 
01794    if (!(sub = c->tech_pvt) || !(sub->vrtp))
01795       return AST_RTP_GET_FAILED;
01796 
01797    *rtp = sub->vrtp;
01798 
01799    return AST_RTP_TRY_NATIVE;
01800 }
01801 
01802 static enum ast_rtp_get_result skinny_get_rtp_peer(struct ast_channel *c, struct ast_rtp **rtp)
01803 {
01804    struct skinny_subchannel *sub = NULL;
01805 
01806    if (!(sub = c->tech_pvt) || !(sub->rtp))
01807       return AST_RTP_GET_FAILED;
01808 
01809    *rtp = sub->rtp;
01810 
01811    return AST_RTP_TRY_NATIVE;
01812 }
01813 
01814 static int skinny_set_rtp_peer(struct ast_channel *c, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs, int nat_active)
01815 {
01816    struct skinny_subchannel *sub;
01817    sub = c->tech_pvt;
01818    if (sub) {
01819       /* transmit_modify_with_sdp(sub, rtp); @@FIXME@@ if needed */
01820       return 0;
01821    }
01822    return -1;
01823 }
01824 
01825 static struct ast_rtp_protocol skinny_rtp = {
01826    .type = "Skinny",
01827    .get_rtp_info = skinny_get_rtp_peer,
01828    .get_vrtp_info = skinny_get_vrtp_peer,
01829    .set_rtp_peer = skinny_set_rtp_peer,
01830 };
01831 
01832 static int skinny_do_debug(int fd, int argc, char *argv[])
01833 {
01834    if (argc != 3) {
01835       return RESULT_SHOWUSAGE;
01836    }
01837    skinnydebug = 1;
01838    ast_cli(fd, "Skinny Debugging Enabled\n");
01839    return RESULT_SUCCESS;
01840 }
01841 
01842 static int skinny_no_debug(int fd, int argc, char *argv[])
01843 {
01844    if (argc != 4) {
01845       return RESULT_SHOWUSAGE;
01846    }
01847    skinnydebug = 0;
01848    ast_cli(fd, "Skinny Debugging Disabled\n");
01849    return RESULT_SUCCESS;
01850 }
01851 
01852 static char *complete_skinny_reset(const char *line, const char *word, int pos, int state)
01853 {
01854    struct skinny_device *d;
01855 
01856    char *result = NULL;
01857    int wordlen = strlen(word);
01858    int which = 0;
01859 
01860    if (pos == 2) {
01861       for (d = devices; d && !result; d = d->next) {
01862          if (!strncasecmp(word, d->id, wordlen) && ++which > state)
01863             result = ast_strdup(d->id);
01864       }
01865    }
01866 
01867    return result;
01868 }
01869 
01870 static int skinny_reset_device(int fd, int argc, char *argv[])
01871 {
01872    struct skinny_device *d;
01873    struct skinny_req *req;
01874 
01875    if (argc < 3 || argc > 4) {
01876       return RESULT_SHOWUSAGE;
01877    }
01878    ast_mutex_lock(&devicelock);
01879 
01880    for (d = devices; d; d = d->next) {
01881       int fullrestart = 0;
01882       if (!strcasecmp(argv[2], d->id) || !strcasecmp(argv[2], "all")) {
01883          if (!(d->session))
01884             continue;
01885 
01886          if (!(req = req_alloc(sizeof(struct reset_message), RESET_MESSAGE)))
01887             continue;
01888 
01889          if (argc == 4 && !strcasecmp(argv[3], "restart"))
01890             fullrestart = 1;
01891 
01892          if (fullrestart)
01893             req->data.reset.resetType = 2;
01894          else
01895             req->data.reset.resetType = 1;
01896 
01897          if (option_verbose > 2)
01898             ast_verbose(VERBOSE_PREFIX_3 "%s device %s.\n", (fullrestart) ? "Restarting" : "Resetting", d->id);
01899          transmit_response(d->session, req);
01900       }
01901    }
01902    ast_mutex_unlock(&devicelock);
01903    return RESULT_SUCCESS;
01904 }
01905 
01906 static char *device2str(int type)
01907 {
01908    char *tmp;
01909 
01910    switch (type) {
01911    case SKINNY_DEVICE_NONE:
01912       return "No Device";
01913    case SKINNY_DEVICE_30SPPLUS:
01914       return "30SP Plus";
01915    case SKINNY_DEVICE_12SPPLUS:
01916       return "12SP Plus";
01917    case SKINNY_DEVICE_12SP:
01918       return "12SP";
01919    case SKINNY_DEVICE_12:
01920       return "12";
01921    case SKINNY_DEVICE_30VIP:
01922       return "30VIP";
01923    case SKINNY_DEVICE_7910:
01924       return "7910";
01925    case SKINNY_DEVICE_7960:
01926       return "7960";
01927    case SKINNY_DEVICE_7940:
01928       return "7940";
01929    case SKINNY_DEVICE_7935:
01930       return "7935";
01931    case SKINNY_DEVICE_ATA186:
01932       return "ATA186";
01933    case SKINNY_DEVICE_7941:
01934       return "7941";
01935    case SKINNY_DEVICE_7971:
01936       return "7971";
01937    case SKINNY_DEVICE_7985:
01938       return "7985";
01939    case SKINNY_DEVICE_7911:
01940       return "7911";
01941    case SKINNY_DEVICE_7961GE:
01942       return "7961GE";
01943    case SKINNY_DEVICE_7941GE:
01944       return "7941GE";
01945    case SKINNY_DEVICE_7921:
01946       return "7921";
01947    case SKINNY_DEVICE_7905:
01948       return "7905";
01949    case SKINNY_DEVICE_7920:
01950       return "7920";
01951    case SKINNY_DEVICE_7970:
01952       return "7970";
01953    case SKINNY_DEVICE_7912:
01954       return "7912";
01955    case SKINNY_DEVICE_7902:
01956       return "7902";
01957    case SKINNY_DEVICE_CIPC:
01958       return "IP Communicator";
01959    case SKINNY_DEVICE_7961:
01960       return "7961";
01961    case SKINNY_DEVICE_7936:
01962       return "7936";
01963    case SKINNY_DEVICE_SCCPGATEWAY_AN:
01964       return "SCCPGATEWAY_AN";
01965    case SKINNY_DEVICE_SCCPGATEWAY_BRI:
01966       return "SCCPGATEWAY_BRI";
01967    case SKINNY_DEVICE_UNKNOWN:
01968       return "Unknown";
01969    default:
01970       if (!(tmp = ast_threadstorage_get(&device2str_threadbuf, DEVICE2STR_BUFSIZE)))
01971          return "Unknown";
01972       snprintf(tmp, DEVICE2STR_BUFSIZE, "UNKNOWN-%d", type);
01973       return tmp;
01974    }
01975 }
01976 
01977 static int skinny_show_devices(int fd, int argc, char *argv[])
01978 {
01979    struct skinny_device *d;
01980    struct skinny_line *l;
01981    int numlines = 0;
01982 
01983    if (argc != 3) {
01984       return RESULT_SHOWUSAGE;
01985    }
01986    ast_mutex_lock(&devicelock);
01987 
01988    ast_cli(fd, "Name                 DeviceId         IP              Type            R NL\n");
01989    ast_cli(fd, "-------------------- ---------------- --------------- --------------- - --\n");
01990    for (d = devices; d; d = d->next) {
01991       numlines = 0;
01992       for (l = d->lines; l; l = l->next) {
01993          numlines++;
01994       }
01995 
01996       ast_cli(fd, "%-20s %-16s %-15s %-15s %c %2d\n",
01997             d->name,
01998             d->id,
01999             d->session?ast_inet_ntoa(d->session->sin.sin_addr):"",
02000             device2str(d->type),
02001             d->registered?'Y':'N',
02002             numlines);
02003    }
02004    ast_mutex_unlock(&devicelock);
02005    return RESULT_SUCCESS;
02006 }
02007 
02008 static int skinny_show_lines(int fd, int argc, char *argv[])
02009 {
02010    struct skinny_device *d;
02011    struct skinny_line *l;
02012 
02013    if (argc != 3) {
02014       return RESULT_SHOWUSAGE;
02015    }
02016    ast_mutex_lock(&devicelock);
02017 
02018    ast_cli(fd, "Device Name          Instance Name                 Label               \n");
02019    ast_cli(fd, "-------------------- -------- -------------------- --------------------\n");
02020    for (d = devices; d; d = d->next) {
02021       for (l = d->lines; l; l = l->next) {
02022          ast_cli(fd, "%-20s %8d %-20s %-20s\n",
02023             d->name,
02024             l->instance,
02025             l->name,
02026             l->label);
02027       }
02028    }
02029 
02030    ast_mutex_unlock(&devicelock);
02031    return RESULT_SUCCESS;
02032 }
02033 
02034 static char show_devices_usage[] =
02035 "Usage: skinny show devices\n"
02036 "       Lists all devices known to the Skinny subsystem.\n";
02037 
02038 static char show_lines_usage[] =
02039 "Usage: skinny show lines\n"
02040 "       Lists all lines known to the Skinny subsystem.\n";
02041 
02042 static char debug_usage[] =
02043 "Usage: skinny set debug\n"
02044 "       Enables dumping of Skinny packets for debugging purposes\n";
02045 
02046 static char no_debug_usage[] =
02047 "Usage: skinny set debug off\n"
02048 "       Disables dumping of Skinny packets for debugging purposes\n";
02049 
02050 static char reset_usage[] =
02051 "Usage: skinny reset <DeviceId|all> [restart]\n"
02052 "       Causes a Skinny device to reset itself, optionally with a full restart\n";
02053 
02054 static struct ast_cli_entry cli_skinny[] = {
02055    { { "skinny", "show", "devices", NULL },
02056    skinny_show_devices, "List defined Skinny devices",
02057    show_devices_usage },
02058 
02059    { { "skinny", "show", "lines", NULL },
02060    skinny_show_lines, "List defined Skinny lines per device",
02061    show_lines_usage },
02062 
02063    { { "skinny", "set", "debug", NULL },
02064    skinny_do_debug, "Enable Skinny debugging",
02065    debug_usage },
02066 
02067    { { "skinny", "set", "debug", "off", NULL },
02068    skinny_no_debug, "Disable Skinny debugging",
02069    no_debug_usage },
02070 
02071    { { "skinny", "reset", NULL },
02072    skinny_reset_device, "Reset Skinny device(s)",
02073    reset_usage, complete_skinny_reset },
02074 };
02075 
02076 #if 0
02077 static struct skinny_paging_device *build_paging_device(const char *cat, struct ast_variable *v)
02078 {
02079    return NULL;
02080 }
02081 #endif
02082 
02083 static struct skinny_device *build_device(const char *cat, struct ast_variable *v)
02084 {
02085    struct skinny_device *d;
02086    struct skinny_line *l;
02087    struct skinny_speeddial *sd;
02088    struct skinny_addon *a;
02089    int lineInstance = 1;
02090    int speeddialInstance = 1;
02091    int y = 0;
02092 
02093    if (!(d = ast_calloc(1, sizeof(struct skinny_device)))) {
02094       return NULL;
02095    } else {
02096       ast_copy_string(d->name, cat, sizeof(d->name));
02097       d->lastlineinstance = 1;
02098       d->capability = default_capability;
02099       d->prefs = default_prefs;
02100       while(v) {
02101          if (!strcasecmp(v->name, "host")) {
02102             if (ast_get_ip(&d->addr, v->value)) {
02103                free(d);
02104                return NULL;
02105             }
02106          } else if (!strcasecmp(v->name, "port")) {
02107             d->addr.sin_port = htons(atoi(v->value));
02108          } else if (!strcasecmp(v->name, "device")) {
02109             ast_copy_string(d->id, v->value, sizeof(d->id));
02110          } else if (!strcasecmp(v->name, "permit") || !strcasecmp(v->name, "deny")) {
02111             d->ha = ast_append_ha(v->name, v->value, d->ha);
02112          } else if (!strcasecmp(v->name, "context")) {
02113             ast_copy_string(context, v->value, sizeof(context));
02114          } else if (!strcasecmp(v->name, "allow")) {
02115             ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 1);
02116          } else if (!strcasecmp(v->name, "disallow")) {
02117             ast_parse_allow_disallow(&d->prefs, &d->capability, v->value, 0);
02118          } else if (!strcasecmp(v->name, "version")) {
02119             ast_copy_string(d->version_id, v->value, sizeof(d->version_id));
02120          } else if (!strcasecmp(v->name, "nat")) {
02121             nat = ast_true(v->value);
02122          } else if (!strcasecmp(v->name, "callerid")) {
02123             if (!strcasecmp(v->value, "asreceived")) {
02124                cid_num[0] = '\0';
02125                cid_name[0] = '\0';
02126             } else {
02127                ast_callerid_split(v->value, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
02128             }
02129          } else if (!strcasecmp(v->name, "language")) {
02130             ast_copy_string(language, v->value, sizeof(language));
02131          } else if (!strcasecmp(v->name, "accountcode")) {
02132             ast_copy_string(accountcode, v->value, sizeof(accountcode));
02133          } else if (!strcasecmp(v->name, "amaflags")) {
02134             y = ast_cdr_amaflags2int(v->value);
02135             if (y < 0) {
02136                ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value, v->lineno);
02137             } else {
02138                amaflags = y;
02139             }
02140          } else if (!strcasecmp(v->name, "mohinterpret") || !strcasecmp(v->name, "musiconhold")) {
02141             ast_copy_string(mohinterpret, v->value, sizeof(mohinterpret));
02142          } else if (!strcasecmp(v->name, "mohsuggest")) {
02143             ast_copy_string(mohsuggest, v->value, sizeof(mohsuggest));
02144          } else if (!strcasecmp(v->name, "callgroup")) {
02145             cur_callergroup = ast_get_group(v->value);
02146          } else if (!strcasecmp(v->name, "pickupgroup")) {
02147             cur_pickupgroup = ast_get_group(v->value);
02148          } else if (!strcasecmp(v->name, "immediate")) {
02149             immediate = ast_true(v->value);
02150          } else if (!strcasecmp(v->name, "cancallforward")) {
02151             cancallforward = ast_true(v->value);
02152          } else if (!strcasecmp(v->name, "mailbox")) {
02153             ast_copy_string(mailbox, v->value, sizeof(mailbox));
02154          } else if (!strcasecmp(v->name, "callreturn")) {
02155             callreturn = ast_true(v->value);
02156          } else if (!strcasecmp(v->name, "callwaiting")) {
02157             callwaiting = ast_true(v->value);
02158          } else if (!strcasecmp(v->name, "transfer")) {
02159             transfer = ast_true(v->value);
02160          } else if (!strcasecmp(v->name, "threewaycalling")) {
02161             threewaycalling = ast_true(v->value);
02162          } else if (!strcasecmp(v->name, "mwiblink")) {
02163             mwiblink = ast_true(v->value);
02164          } else if (!strcasecmp(v->name, "linelabel")) {
02165             ast_copy_string(linelabel, v->value, sizeof(linelabel));
02166          } else if (!strcasecmp(v->name, "speeddial")) {
02167             if (!(sd = ast_calloc(1, sizeof(struct skinny_speeddial)))) {
02168                return NULL;
02169             } else {
02170                char *stringp, *exten, *label;
02171                stringp = v->value;
02172                exten = strsep(&stringp, ",");
02173                label = strsep(&stringp, ",");
02174                ast_mutex_init(&sd->lock);
02175                ast_copy_string(sd->exten, exten, sizeof(sd->exten));
02176                if (label)
02177                   ast_copy_string(sd->label, label, sizeof(sd->label));
02178                else
02179                   ast_copy_string(sd->label, exten, sizeof(sd->label));
02180                sd->instance = speeddialInstance++;
02181 
02182                sd->parent = d;
02183 
02184                sd->next = d->speeddials;
02185                d->speeddials = sd;
02186             }
02187          } else if (!strcasecmp(v->name, "addon")) {
02188             if (!(a = ast_calloc(1, sizeof(struct skinny_addon)))) {
02189                return NULL;
02190             } else {
02191                ast_mutex_init(&a->lock);
02192                ast_copy_string(a->type, v->value, sizeof(a->type));
02193 
02194                a->next = d->addons;
02195                d->addons = a;
02196             }
02197          } else if (!strcasecmp(v->name, "trunk") || !strcasecmp(v->name, "line")) {
02198             if (!(l = ast_calloc(1, sizeof(struct skinny_line)))) {
02199                return NULL;
02200             } else {
02201                ast_mutex_init(&l->lock);
02202                ast_copy_string(l->name, v->value, sizeof(l->name));
02203 
02204                /* XXX Should we check for uniqueness?? XXX */
02205                ast_copy_string(l->context, context, sizeof(l->context));
02206                ast_copy_string(l->cid_num, cid_num, sizeof(l->cid_num));
02207                ast_copy_string(l->cid_name, cid_name, sizeof(l->cid_name));
02208                ast_copy_string(l->label, linelabel, sizeof(l->label));
02209                ast_copy_string(l->language, language, sizeof(l->language));
02210                ast_copy_string(l->mohinterpret, mohinterpret, sizeof(l->mohinterpret));
02211                ast_copy_string(l->mohsuggest, mohsuggest, sizeof(l->mohsuggest));
02212                ast_copy_string(l->mailbox, mailbox, sizeof(l->mailbox));
02213                if (!ast_strlen_zero(mailbox)) {
02214                   if (option_verbose > 2)
02215                      ast_verbose(VERBOSE_PREFIX_3 "Setting mailbox '%s' on %s@%s\n", mailbox, d->name, l->name);
02216                }
02217                l->msgstate = -1;
02218                l->capability = d->capability;
02219                l->prefs = d->prefs;
02220                l->parent = d;
02221                if (!strcasecmp(v->name, "trunk")) {
02222                   l->type = TYPE_TRUNK;
02223                } else {
02224                   l->type = TYPE_LINE;
02225                }
02226                l->immediate = immediate;
02227                l->callgroup = cur_callergroup;
02228                l->pickupgroup = cur_pickupgroup;
02229                l->callreturn = callreturn;
02230                l->cancallforward = cancallforward;
02231                l->callwaiting = callwaiting;
02232                l->transfer = transfer;
02233                l->threewaycalling = threewaycalling;
02234                l->mwiblink = mwiblink;
02235                l->onhooktime = time(NULL);
02236                l->instance = lineInstance++;
02237                /* ASSUME we're onhook at this point */
02238                l->hookstate = SKINNY_ONHOOK;
02239                l->nat = nat;
02240 
02241                l->next = d->lines;
02242                d->lines = l;
02243             }
02244          } else {
02245             ast_log(LOG_WARNING, "Don't know keyword '%s' at line %d\n", v->name, v->lineno);
02246          }
02247          v = v->next;
02248       }
02249 
02250       if (!d->lines) {
02251          ast_log(LOG_ERROR, "A Skinny device must have at least one line!\n");
02252          return NULL;
02253       }
02254       if (/*d->addr.sin_addr.s_addr && */!ntohs(d->addr.sin_port)) {
02255          d->addr.sin_port = htons(DEFAULT_SKINNY_PORT);
02256       }
02257 #if 0
02258       /* I don't think we need this anymore at all, since d->ourip is set in skinny_register now */
02259       if (d->addr.sin_addr.s_addr) {
02260          /* XXX See note above, in 'host' option. */
02261          if (ast_ouraddrfor(&d->addr.sin_addr, &d->ourip)) {
02262             d->ourip = __ourip;
02263          }
02264       } else {
02265          d->ourip = __ourip;
02266       }
02267 #endif
02268    }
02269    return d;
02270 }
02271 
02272 static void start_rtp(struct skinny_subchannel *sub)
02273 {
02274    struct skinny_line *l = sub->parent;
02275    struct skinny_device *d = l->parent;
02276    int hasvideo = 0;
02277 
02278    ast_mutex_lock(&sub->lock);
02279    /* Allocate the RTP */
02280    sub->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
02281    if (hasvideo)
02282       sub->vrtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr);
02283    
02284    if (sub->rtp && sub->owner) {
02285       sub->owner->fds[0] = ast_rtp_fd(sub->rtp);
02286       sub->owner->fds[1] = ast_rtcp_fd(sub->rtp);
02287    }
02288    if (hasvideo && sub->vrtp && sub->owner) {
02289       sub->owner->fds[2] = ast_rtp_fd(sub->vrtp);
02290       sub->owner->fds[3] = ast_rtcp_fd(sub->vrtp);
02291    }
02292    if (sub->rtp) {
02293       ast_rtp_setnat(sub->rtp, l->nat);
02294    }
02295    if (sub->vrtp) {
02296       ast_rtp_setnat(sub->vrtp, l->nat);
02297    }
02298    /* Set Frame packetization */
02299    if (sub->rtp)
02300       ast_rtp_codec_setpref(sub->rtp, &l->prefs);
02301 
02302    /* Create the RTP connection */
02303    transmit_connect(d->session, sub);
02304    ast_mutex_unlock(&sub->lock);
02305 }
02306 
02307 static void *skinny_newcall(void *data)
02308 {
02309    struct ast_channel *c = data;
02310    struct skinny_subchannel *sub = c->tech_pvt;
02311    struct skinny_line *l = sub->parent;
02312    struct skinny_device *d = l->parent;
02313    struct skinnysession *s = d->session;
02314    int res = 0;
02315 
02316    ast_copy_string(l->lastnumberdialed, c->exten, sizeof(l->lastnumberdialed));
02317    ast_set_callerid(c,
02318       l->hidecallerid ? "" : l->cid_num,
02319       l->hidecallerid ? "" : l->cid_name,
02320       c->cid.cid_ani ? NULL : l->cid_num);
02321    ast_setstate(c, AST_STATE_RING);
02322    res = ast_pbx_run(c);
02323    if (res) {
02324       ast_log(LOG_WARNING, "PBX exited non-zero\n");
02325       transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02326    }
02327    return NULL;
02328 }
02329 
02330 static void *skinny_ss(void *data)
02331 {
02332    struct ast_channel *c = data;
02333    struct skinny_subchannel *sub = c->tech_pvt;
02334    struct skinny_line *l = sub->parent;
02335    struct skinny_device *d = l->parent;
02336    struct skinnysession *s = d->session;
02337    int len = 0;
02338    int timeout = firstdigittimeout;
02339    int res = 0;
02340    int getforward=0;
02341    int loop_pause = 100;
02342 
02343    if (option_verbose > 2)
02344       ast_verbose( VERBOSE_PREFIX_3 "Starting simple switch on '%s@%s'\n", l->name, d->name);
02345    len = strlen(d->exten);
02346 
02347    while (len < AST_MAX_EXTENSION-1) {
02348 
02349       res = 1;  /* Assume we will get a digit */
02350       while (strlen(d->exten) == len) {
02351          ast_safe_sleep(c, loop_pause);
02352          timeout -= loop_pause;
02353          if (timeout <= 0){
02354             res = 0;
02355             break;
02356          }
02357       }
02358 
02359       len = strlen(d->exten);
02360 
02361       if (!ast_ignore_pattern(c->context, d->exten)) {
02362          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02363       }
02364 
02365       if (ast_exists_extension(c, c->context, d->exten, 1, l->cid_num)) {
02366          if (!res || !ast_matchmore_extension(c, c->context, d->exten, 1, l->cid_num)) {
02367             if (getforward) {
02368                /* Record this as the forwarding extension */
02369                ast_copy_string(l->call_forward, d->exten, sizeof(l->call_forward));
02370                if (option_verbose > 2)
02371                   ast_verbose(VERBOSE_PREFIX_3 "Setting call forward to '%s' on channel %s\n",
02372                      l->call_forward, c->name);
02373                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
02374                if (res) {
02375                   break;
02376                }
02377                ast_safe_sleep(c, 500);
02378                ast_indicate(c, -1);
02379                ast_safe_sleep(c, 1000);
02380                memset(d->exten, 0, sizeof(d->exten));
02381                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
02382                len = 0;
02383                getforward = 0;
02384             } else {
02385                ast_copy_string(c->exten, d->exten, sizeof(c->exten));
02386                ast_copy_string(l->lastnumberdialed, d->exten, sizeof(l->lastnumberdialed));
02387                memset (d->exten, 0, sizeof(d->exten));
02388                skinny_newcall(c);
02389                return NULL;
02390             }
02391          } else {
02392             /* It's a match, but they just typed a digit, and there is an ambiguous match,
02393                so just set the timeout to matchdigittimeout and wait some more */
02394             timeout = matchdigittimeout;
02395          }
02396       } else if (res == 0) {
02397          ast_log(LOG_DEBUG, "Not enough digits (and no ambiguous match)...\n");
02398          memset(d->exten, 0, sizeof(d->exten));
02399          transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02400          if (sub->owner && sub->owner->_state != AST_STATE_UP) {
02401             ast_indicate(c, -1);
02402             ast_hangup(c);
02403          }
02404          return NULL;
02405       } else if (!ast_canmatch_extension(c, c->context, d->exten, 1, c->cid.cid_num) &&
02406             ((d->exten[0] != '*') || (!ast_strlen_zero(d->exten) > 2))) {
02407          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);
02408          memset(d->exten, 0, sizeof(d->exten));
02409          transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02410          /* hang out for 3 seconds to let congestion play */
02411          ast_safe_sleep(c, 3000);
02412          break;
02413       }
02414       if (!timeout) {
02415          timeout = gendigittimeout;
02416       }
02417       if (len && !ast_ignore_pattern(c->context, d->exten)) {
02418          ast_indicate(c, -1);
02419       }
02420    }
02421    if (c)
02422       ast_hangup(c);
02423 
02424    memset(d->exten, 0, sizeof(d->exten));
02425    return NULL;
02426 }
02427 
02428 
02429 
02430 static int skinny_call(struct ast_channel *ast, char *dest, int timeout)
02431 {
02432    int res = 0;
02433    int tone = 0;
02434    struct skinny_subchannel *sub = ast->tech_pvt;
02435    struct skinny_line *l = sub->parent;
02436    struct skinny_device *d = l->parent;
02437    struct skinnysession *s = d->session;
02438 
02439    if (!d->registered) {
02440       ast_log(LOG_ERROR, "Device not registered, cannot call %s\n", dest);
02441       return -1;
02442    }
02443 
02444    if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
02445       ast_log(LOG_WARNING, "skinny_call called on %s, neither down nor reserved\n", ast->name);
02446       return -1;
02447    }
02448 
02449    if (skinnydebug)
02450       ast_verbose(VERBOSE_PREFIX_3 "skinny_call(%s)\n", ast->name);
02451 
02452    if (l->dnd) {
02453       ast_queue_control(ast, AST_CONTROL_BUSY);
02454       return -1;
02455    }
02456 
02457    switch (l->hookstate) {
02458    case SKINNY_OFFHOOK:
02459       tone = SKINNY_CALLWAITTONE;
02460       break;
02461    case SKINNY_ONHOOK:
02462       tone = SKINNY_ALERT;
02463       break;
02464    default:
02465       ast_log(LOG_ERROR, "Don't know how to deal with hookstate %d\n", l->hookstate);
02466       break;
02467    }
02468 
02469    transmit_callstate(s, l->instance, SKINNY_RINGIN, sub->callid);
02470    transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGIN);
02471    transmit_displaypromptstatus(s, "Ring-In", 0, l->instance, sub->callid);
02472    transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, l->cid_name, l->cid_num, l->instance, sub->callid, 1);
02473    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
02474    transmit_ringer_mode(s, SKINNY_RING_INSIDE);
02475 
02476    ast_setstate(ast, AST_STATE_RINGING);
02477    ast_queue_control(ast, AST_CONTROL_RINGING);
02478    sub->outgoing = 1;
02479    return res;
02480 }
02481 
02482 static int skinny_hangup(struct ast_channel *ast)
02483 {
02484    struct skinny_subchannel *sub = ast->tech_pvt;
02485    struct skinny_line *l;
02486    struct skinny_device *d;
02487    struct skinnysession *s;
02488 
02489    if (!sub) {
02490       ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n");
02491       return 0;
02492    }
02493    l = sub->parent;
02494    d = l->parent;
02495    s = d->session;
02496    if (skinnydebug)
02497       ast_verbose("skinny_hangup(%s) on %s@%s\n", ast->name, l->name, d->name);
02498 
02499    if (d->registered) {
02500       if ((l->type = TYPE_LINE) && (l->hookstate == SKINNY_OFFHOOK)) {
02501          l->hookstate = SKINNY_ONHOOK;
02502          transmit_callstate(s, l->instance, SKINNY_ONHOOK, sub->callid);
02503          transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_OFF);
02504          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
02505       } else if ((l->type = TYPE_LINE) && (l->hookstate == SKINNY_ONHOOK)) {
02506          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02507          transmit_callstate(s, l->instance, SKINNY_ONHOOK, sub->callid);
02508          transmit_ringer_mode(s, SKINNY_RING_OFF);
02509          transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_OFF);
02510          do_housekeeping(s);
02511       }
02512    }
02513    ast_mutex_lock(&sub->lock);
02514    sub->owner = NULL;
02515    ast->tech_pvt = NULL;
02516    sub->alreadygone = 0;
02517    sub->outgoing = 0;
02518    if (sub->rtp) {
02519       ast_rtp_destroy(sub->rtp);
02520       sub->rtp = NULL;
02521    }
02522    ast_mutex_unlock(&sub->lock);
02523    return 0;
02524 }
02525 
02526 static int skinny_answer(struct ast_channel *ast)
02527 {
02528    int res = 0;
02529    struct skinny_subchannel *sub = ast->tech_pvt;
02530    struct skinny_line *l = sub->parent;
02531    struct skinny_device *d = l->parent;
02532    struct skinnysession *s = d->session;
02533    char exten[AST_MAX_EXTENSION] = "";
02534 
02535    ast_copy_string(exten, S_OR(ast->macroexten, ast->exten), sizeof(exten));
02536 
02537    sub->cxmode = SKINNY_CX_SENDRECV;
02538    if (!sub->rtp) {
02539       start_rtp(sub);
02540    }
02541    if (skinnydebug)
02542       ast_verbose("skinny_answer(%s) on %s@%s-%d\n", ast->name, l->name, d->name, sub->callid);
02543    if (ast->_state != AST_STATE_UP) {
02544       ast_setstate(ast, AST_STATE_UP);
02545    }
02546 
02547    transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02548    /* order matters here...
02549       for some reason, transmit_callinfo must be before transmit_callstate,
02550       or you won't get keypad messages in some situations. */
02551    transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2);
02552    transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
02553    transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
02554    transmit_displaypromptstatus(s, "Connected", 0, l->instance, sub->callid);
02555    return res;
02556 }
02557 
02558 /* Retrieve audio/etc from channel.  Assumes sub->lock is already held. */
02559 static struct ast_frame *skinny_rtp_read(struct skinny_subchannel *sub)
02560 {
02561    struct ast_channel *ast = sub->owner;
02562    struct ast_frame *f;
02563 
02564    if (!sub->rtp) {
02565       /* We have no RTP allocated for this channel */
02566       return &ast_null_frame;
02567    }
02568 
02569    switch(ast->fdno) {
02570    case 0:
02571       f = ast_rtp_read(sub->rtp);   /* RTP Audio */
02572       break;
02573    case 1:
02574       f = ast_rtcp_read(sub->rtp);  /* RTCP Control Channel */
02575       break;
02576    case 2:
02577       f = ast_rtp_read(sub->vrtp);  /* RTP Video */
02578       break;
02579    case 3:
02580       f = ast_rtcp_read(sub->vrtp); /* RTCP Control Channel for video */
02581       break;
02582 #if 0
02583    case 5:
02584       /* Not yet supported */
02585       f = ast_udptl_read(sub->udptl);  /* UDPTL for T.38 */
02586       break;
02587 #endif
02588    default:
02589       f = &ast_null_frame;
02590    }
02591 
02592    if (ast) {
02593       /* We already hold the channel lock */
02594       if (f->frametype == AST_FRAME_VOICE) {
02595          if (f->subclass != ast->nativeformats) {
02596             ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass);
02597             ast->nativeformats = f->subclass;
02598             ast_set_read_format(ast, ast->readformat);
02599             ast_set_write_format(ast, ast->writeformat);
02600          }
02601       }
02602    }
02603    return f;
02604 }
02605 
02606 static struct ast_frame *skinny_read(struct ast_channel *ast)
02607 {
02608    struct ast_frame *fr;
02609    struct skinny_subchannel *sub = ast->tech_pvt;
02610    ast_mutex_lock(&sub->lock);
02611    fr = skinny_rtp_read(sub);
02612    ast_mutex_unlock(&sub->lock);
02613    return fr;
02614 }
02615 
02616 static int skinny_write(struct ast_channel *ast, struct ast_frame *frame)
02617 {
02618    struct skinny_subchannel *sub = ast->tech_pvt;
02619    int res = 0;
02620    if (frame->frametype != AST_FRAME_VOICE) {
02621       if (frame->frametype == AST_FRAME_IMAGE) {
02622          return 0;
02623       } else {
02624          ast_log(LOG_WARNING, "Can't send %d type frames with skinny_write\n", frame->frametype);
02625          return 0;
02626       }
02627    } else {
02628       if (!(frame->subclass & ast->nativeformats)) {
02629          ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n",
02630             frame->subclass, ast->nativeformats, ast->readformat, ast->writeformat);
02631          return -1;
02632       }
02633    }
02634    if (sub) {
02635       ast_mutex_lock(&sub->lock);
02636       if (sub->rtp) {
02637          res = ast_rtp_write(sub->rtp, frame);
02638       }
02639       ast_mutex_unlock(&sub->lock);
02640    }
02641    return res;
02642 }
02643 
02644 static int skinny_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
02645 {
02646    struct skinny_subchannel *sub = newchan->tech_pvt;
02647    ast_log(LOG_NOTICE, "skinny_fixup(%s, %s)\n", oldchan->name, newchan->name);
02648    if (sub->owner != oldchan) {
02649       ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, sub->owner);
02650       return -1;
02651    }
02652    sub->owner = newchan;
02653    return 0;
02654 }
02655 
02656 static int skinny_senddigit_begin(struct ast_channel *ast, char digit)
02657 {
02658    return -1; /* Start inband indications */
02659 }
02660 
02661 static int skinny_senddigit_end(struct ast_channel *ast, char digit, unsigned int duration)
02662 {
02663 #if 0
02664    struct skinny_subchannel *sub = ast->tech_pvt;
02665    struct skinny_line *l = sub->parent;
02666    struct skinny_device *d = l->parent;
02667    int tmp;
02668    /* not right */
02669    sprintf(tmp, "%d", digit);
02670    transmit_tone(d->session, digit, l->instance, sub->callid);
02671 #endif
02672    return -1; /* Stop inband indications */
02673 }
02674 
02675 static char *control2str(int ind) {
02676    char *tmp;
02677 
02678    switch (ind) {
02679    case AST_CONTROL_HANGUP:
02680       return "Other end has hungup";
02681    case AST_CONTROL_RING:
02682       return "Local ring";
02683    case AST_CONTROL_RINGING:
02684       return "Remote end is ringing";
02685    case AST_CONTROL_ANSWER:
02686       return "Remote end has answered";
02687    case AST_CONTROL_BUSY:
02688       return "Remote end is busy";
02689    case AST_CONTROL_TAKEOFFHOOK:
02690       return "Make it go off hook";
02691    case AST_CONTROL_OFFHOOK:
02692       return "Line is off hook";
02693    case AST_CONTROL_CONGESTION:
02694       return "Congestion (circuits busy)";
02695    case AST_CONTROL_FLASH:
02696       return "Flash hook";
02697    case AST_CONTROL_WINK:
02698       return "Wink";
02699    case AST_CONTROL_OPTION:
02700       return "Set a low-level option";
02701    case AST_CONTROL_RADIO_KEY:
02702       return "Key Radio";
02703    case AST_CONTROL_RADIO_UNKEY:
02704       return "Un-Key Radio";
02705    case AST_CONTROL_PROGRESS:
02706       return "Remote end is making Progress";
02707    case AST_CONTROL_PROCEEDING:
02708       return "Remote end is proceeding";
02709    case AST_CONTROL_HOLD:
02710       return "Hold";
02711    case AST_CONTROL_UNHOLD:
02712       return "Unhold";
02713    case -1:
02714       return "Stop tone";
02715    default:
02716       if (!(tmp = ast_threadstorage_get(&control2str_threadbuf, CONTROL2STR_BUFSIZE)))
02717                         return "Unknown";
02718       snprintf(tmp, CONTROL2STR_BUFSIZE, "UNKNOWN-%d", ind);
02719       return tmp;
02720    }
02721 }
02722 
02723 
02724 static int skinny_indicate(struct ast_channel *ast, int ind, const void *data, size_t datalen)
02725 {
02726    struct skinny_subchannel *sub = ast->tech_pvt;
02727    struct skinny_line *l = sub->parent;
02728    struct skinny_device *d = l->parent;
02729    struct skinnysession *s = d->session;
02730    char exten[AST_MAX_EXTENSION] = "";
02731 
02732    if (!s) {
02733       ast_log(LOG_NOTICE, "Asked to indicate '%s' condition on channel %s, but session does not exist.\n", control2str(ind), ast->name);
02734       return -1;
02735    }
02736 
02737    ast_copy_string(exten, S_OR(ast->macroexten, ast->exten), sizeof(exten));
02738 
02739    if (skinnydebug)
02740       ast_verbose(VERBOSE_PREFIX_3 "Asked to indicate '%s' condition on channel %s\n", control2str(ind), ast->name);
02741    switch(ind) {
02742    case AST_CONTROL_RINGING:
02743       if (ast->_state != AST_STATE_UP) {
02744          if (!sub->progress) {
02745             transmit_tone(s, SKINNY_ALERT, l->instance, sub->callid);
02746             transmit_callstate(s, l->instance, SKINNY_RINGOUT, sub->callid);
02747             transmit_dialednumber(s, exten, l->instance, sub->callid);
02748             transmit_displaypromptstatus(s, "Ring Out", 0, l->instance, sub->callid);
02749             transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2); /* 2 = outgoing from phone */
02750             sub->ringing = 1;
02751             break;
02752          }
02753       }
02754       return -1;
02755    case AST_CONTROL_BUSY:
02756       if (ast->_state != AST_STATE_UP) {
02757          transmit_tone(s, SKINNY_BUSYTONE, l->instance, sub->callid);
02758          transmit_callstate(s, l->instance, SKINNY_BUSY, sub->callid);
02759          sub->alreadygone = 1;
02760          ast_softhangup_nolock(ast, AST_SOFTHANGUP_DEV);
02761          break;
02762       }
02763       return -1;
02764    case AST_CONTROL_CONGESTION:
02765       if (ast->_state != AST_STATE_UP) {
02766          transmit_tone(s, SKINNY_REORDER, l->instance, sub->callid);
02767          transmit_callstate(s, l->instance, SKINNY_CONGESTION, sub->callid);
02768          sub->alreadygone = 1;
02769          ast_softhangup_nolock(ast, AST_SOFTHANGUP_DEV);
02770          break;
02771       }
02772       return -1;
02773    case AST_CONTROL_PROGRESS:
02774       if ((ast->_state != AST_STATE_UP) && !sub->progress && !sub->outgoing) {
02775          transmit_tone(s, SKINNY_ALERT, l->instance, sub->callid);
02776          transmit_callstate(s, l->instance, SKINNY_PROGRESS, sub->callid);
02777          transmit_displaypromptstatus(s, "Call Progress", 0, l->instance, sub->callid);
02778          transmit_callinfo(s, ast->cid.cid_name, ast->cid.cid_num, exten, exten, l->instance, sub->callid, 2); /* 2 = outgoing from phone */
02779          sub->progress = 1;
02780          break;
02781       }
02782       return -1;
02783    case -1:
02784       transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
02785       break;
02786    case AST_CONTROL_HOLD:
02787       ast_moh_start(ast, data, l->mohinterpret);
02788       break;
02789    case AST_CONTROL_UNHOLD:
02790       ast_moh_stop(ast);
02791       break;
02792    case AST_CONTROL_PROCEEDING:
02793       break;
02794    default:
02795       ast_log(LOG_WARNING, "Don't know how to indicate condition %d\n", ind);
02796       return -1;
02797    }
02798    return 0;
02799 }
02800 
02801 static struct ast_channel *skinny_new(struct skinny_line *l, int state)
02802 {
02803    struct ast_channel *tmp;
02804    struct skinny_subchannel *sub;
02805    struct skinny_device *d = l->parent;
02806    int fmt;
02807 
02808    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);
02809    if (!tmp) {
02810       ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
02811       return NULL;
02812    } else {
02813       sub = ast_calloc(1, sizeof(struct skinny_subchannel));
02814       if (!sub) {
02815          ast_log(LOG_WARNING, "Unable to allocate Skinny subchannel\n");
02816          return NULL;
02817       } else {
02818          ast_mutex_init(&sub->lock);
02819 
02820          sub->owner = tmp;
02821          sub->callid = callnums++;
02822          d->lastlineinstance = l->instance;
02823          d->lastcallreference = sub->callid;
02824          sub->cxmode = SKINNY_CX_INACTIVE;
02825          sub->nat = l->nat;
02826          sub->parent = l;
02827          sub->onhold = 0;
02828 
02829          sub->next = l->sub;
02830          l->sub = sub;
02831       }
02832       tmp->tech = &skinny_tech;
02833       tmp->tech_pvt = sub;
02834       tmp->nativeformats = l->capability;
02835       if (!tmp->nativeformats)
02836          tmp->nativeformats = default_capability;
02837       fmt = ast_best_codec(tmp->nativeformats);
02838       if (skinnydebug)
02839          ast_verbose("skinny_new: tmp->nativeformats=%d fmt=%d\n", tmp->nativeformats, fmt);
02840       if (sub->rtp) {
02841          tmp->fds[0] = ast_rtp_fd(sub->rtp);
02842       }
02843       if (state == AST_STATE_RING) {
02844          tmp->rings = 1;
02845       }
02846       tmp->writeformat = fmt;
02847       tmp->rawwriteformat = fmt;
02848       tmp->readformat = fmt;
02849       tmp->rawreadformat = fmt;
02850       if (!ast_strlen_zero(l->language))
02851          ast_string_field_set(tmp, language, l->language);
02852       if (!ast_strlen_zero(l->accountcode))
02853          ast_string_field_set(tmp, accountcode, l->accountcode);
02854       if (l->amaflags)
02855          tmp->amaflags = l->amaflags;
02856 
02857       ast_module_ref(ast_module_info->self);
02858       tmp->callgroup = l->callgroup;
02859       tmp->pickupgroup = l->pickupgroup;
02860       ast_string_field_set(tmp, call_forward, l->call_forward);
02861       ast_copy_string(tmp->context, l->context, sizeof(tmp->context));
02862       ast_copy_string(tmp->exten, l->exten, sizeof(tmp->exten));
02863 
02864       /* Don't use ast_set_callerid() here because it will
02865        * generate a needless NewCallerID event */
02866       tmp->cid.cid_ani = ast_strdup(l->cid_num);
02867 
02868       tmp->priority = 1;
02869       tmp->adsicpe = AST_ADSI_UNAVAILABLE;
02870 
02871       if (sub->rtp)
02872          ast_jb_configure(tmp, &global_jbconf);
02873 
02874       if (state != AST_STATE_DOWN) {
02875          if (ast_pbx_start(tmp)) {
02876             ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
02877             ast_hangup(tmp);
02878             tmp = NULL;
02879          }
02880       }
02881    }
02882    return tmp;
02883 }
02884 
02885 static int skinny_hold(struct skinny_subchannel *sub)
02886 {
02887    struct skinny_line *l = sub->parent;
02888    struct skinny_device *d = l->parent;
02889    struct skinnysession *s = d->session;
02890    struct skinny_req *req;
02891 
02892    /* Don't try to hold a channel that doesn't exist */
02893    if (!sub || !sub->owner)
02894       return 0;
02895 
02896    /* Channel needs to be put on hold */
02897    if (skinnydebug)
02898       ast_verbose("Putting on Hold(%d)\n", l->instance);
02899 
02900    ast_queue_control_data(sub->owner, AST_CONTROL_HOLD,
02901       S_OR(l->mohsuggest, NULL),
02902       !ast_strlen_zero(l->mohsuggest) ? strlen(l->mohsuggest) + 1 : 0);
02903 
02904    if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
02905       return 0;
02906 
02907    req->data.activatecallplane.lineInstance = htolel(l->instance);
02908    transmit_response(s, req);
02909 
02910    if (!(req = req_alloc(sizeof(struct close_receive_channel_message), CLOSE_RECEIVE_CHANNEL_MESSAGE)))
02911       return 0;
02912 
02913    req->data.closereceivechannel.conferenceId = htolel(sub->callid);
02914    req->data.closereceivechannel.partyId = htolel(sub->callid);
02915    transmit_response(s, req);
02916 
02917    if (!(req = req_alloc(sizeof(struct stop_media_transmission_message), STOP_MEDIA_TRANSMISSION_MESSAGE)))
02918       return 0;
02919 
02920    req->data.stopmedia.conferenceId = htolel(sub->callid);
02921    req->data.stopmedia.passThruPartyId = htolel(sub->callid);
02922    transmit_response(s, req);
02923 
02924    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_BLINK);
02925    sub->onhold = 1;
02926    return 1;
02927 }
02928 
02929 static int skinny_unhold(struct skinny_subchannel *sub)
02930 {
02931    struct skinny_line *l = sub->parent;
02932    struct skinny_device *d = l->parent;
02933    struct skinnysession *s = d->session;
02934    struct skinny_req *req;
02935 
02936    /* Don't try to unhold a channel that doesn't exist */
02937    if (!sub || !sub->owner)
02938       return 0;
02939 
02940    /* Channel is on hold, so we will unhold */
02941    if (skinnydebug)
02942       ast_verbose("Taking off Hold(%d)\n", l->instance);
02943 
02944    ast_queue_control(sub->owner, AST_CONTROL_UNHOLD);
02945 
02946    if (!(req = req_alloc(sizeof(struct activate_call_plane_message), ACTIVATE_CALL_PLANE_MESSAGE)))
02947       return 0;
02948 
02949    req->data.activatecallplane.lineInstance = htolel(l->instance);
02950    transmit_response(s, req);
02951 
02952    transmit_connect(s, sub);
02953    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
02954    sub->onhold = 0;
02955    return 1;
02956 }
02957 
02958 static int handle_keep_alive_message(struct skinny_req *req, struct skinnysession *s)
02959 {
02960    if (!(req = req_alloc(0, KEEP_ALIVE_ACK_MESSAGE)))
02961       return -1;
02962 
02963    transmit_response(s, req);
02964    do_housekeeping(s);
02965    return 1;
02966 }
02967 
02968 static int handle_register_message(struct skinny_req *req, struct skinnysession *s)
02969 {
02970    char name[16];
02971    int res;
02972 
02973    memcpy(&name, req->data.reg.name, sizeof(name));
02974 
02975    res = skinny_register(req, s);
02976    if (!res) {
02977       ast_log(LOG_ERROR, "Rejecting Device %s: Device not found\n", name);
02978       if (!(req = req_alloc(sizeof(struct register_rej_message), REGISTER_REJ_MESSAGE)))
02979          return -1;
02980 
02981       snprintf(req->data.regrej.errMsg, sizeof(req->data.regrej.errMsg), "No Authority: %s", name);
02982       transmit_response(s, req);
02983       return 0;
02984    }
02985    if (option_verbose > 2)
02986       ast_verbose(VERBOSE_PREFIX_3 "Device '%s' successfully registered\n", name);
02987 
02988    if (!(req = req_alloc(sizeof(struct register_ack_message), REGISTER_ACK_MESSAGE)))
02989       return -1;
02990 
02991    req->data.regack.res[0] = '0';
02992    req->data.regack.res[1] = '\0';
02993    req->data.regack.keepAlive = htolel(keep_alive);
02994    memcpy(req->data.regack.dateTemplate, date_format, sizeof(req->data.regack.dateTemplate));
02995    req->data.regack.res2[0] = '0';
02996    req->data.regack.res2[1] = '\0';
02997    req->data.regack.secondaryKeepAlive = htolel(keep_alive);
02998    transmit_response(s, req);
02999    if (skinnydebug)
03000       ast_verbose("Requesting capabilities\n");
03001 
03002    if (!(req = req_alloc(0, CAPABILITIES_REQ_MESSAGE)))
03003       return -1;
03004 
03005    transmit_response(s, req);
03006 
03007    return res;
03008 }
03009 
03010 static int handle_ip_port_message(struct skinny_req *req, struct skinnysession *s)
03011 {
03012    /* no response necessary */
03013    return 1;
03014 }
03015 
03016 static int handle_keypad_button_message(struct skinny_req *req, struct skinnysession *s)
03017 {
03018    struct skinny_subchannel *sub = NULL;
03019    struct skinny_line *l;
03020    struct skinny_device *d = s->device;
03021    struct ast_frame f = { 0, };
03022    char dgt;
03023    int digit;
03024    int lineInstance;
03025    int callReference;
03026 
03027    digit = letohl(req->data.keypad.button);
03028    lineInstance = letohl(req->data.keypad.lineInstance);
03029    callReference = letohl(req->data.keypad.callReference);
03030 
03031    if (digit == 14) {
03032       dgt = '*';
03033    } else if (digit == 15) {
03034       dgt = '#';
03035    } else if (digit >= 0 && digit <= 9) {
03036       dgt = '0' + digit;
03037    } else {
03038       /* digit=10-13 (A,B,C,D ?), or
03039        * digit is bad value
03040        *
03041        * probably should not end up here, but set
03042        * value for backward compatibility, and log
03043        * a warning.
03044        */
03045       dgt = '0' + digit;
03046       ast_log(LOG_WARNING, "Unsupported digit %d\n", digit);
03047    }
03048 
03049    f.subclass = dgt;
03050 
03051    f.src = "skinny";
03052 
03053    if (lineInstance && callReference)
03054       sub = find_subchannel_by_instance_reference(d, lineInstance, callReference);
03055    else
03056       sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03057 
03058    if (!sub)
03059       return 0;
03060 
03061    l = sub->parent;
03062    if (sub->owner) {
03063       if (sub->owner->_state == 0) {
03064          f.frametype = AST_FRAME_DTMF_BEGIN;
03065          ast_queue_frame(sub->owner, &f);
03066       }
03067       /* XXX MUST queue this frame to all lines in threeway call if threeway call is active */
03068       f.frametype = AST_FRAME_DTMF_END;
03069       ast_queue_frame(sub->owner, &f);
03070       /* XXX This seriously needs to be fixed */
03071       if (sub->next && sub->next->owner) {
03072          if (sub->owner->_state == 0) {
03073             f.frametype = AST_FRAME_DTMF_BEGIN;
03074             ast_queue_frame(sub->next->owner, &f);
03075          }
03076          f.frametype = AST_FRAME_DTMF_END;
03077          ast_queue_frame(sub->next->owner, &f);
03078       }
03079    } else {
03080       if (skinnydebug)
03081          ast_verbose("No owner: %s\n", l->name);
03082    }
03083    return 1;
03084 }
03085 
03086 static int handle_stimulus_message(struct skinny_req *req, struct skinnysession *s)
03087 {
03088    struct skinny_device *d = s->device;
03089    struct skinny_line *l;
03090    struct skinny_subchannel *sub;
03091    /*struct skinny_speeddial *sd;*/
03092    struct ast_channel *c;
03093    pthread_t t;
03094    int event;
03095    int instance;
03096    int callreference;
03097    /*int res = 0;*/
03098 
03099    event = letohl(req->data.stimulus.stimulus);
03100    instance = letohl(req->data.stimulus.stimulusInstance);
03101    callreference = letohl(req->data.stimulus.callreference); 
03102    if (skinnydebug)
03103       ast_verbose("callreference in handle_stimulus_message is '%d'\n", callreference);
03104 
03105    /*  Note that this call should be using the passed in instance and callreference */
03106    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03107 
03108    if (!sub) {
03109       l = find_line_by_instance(d, d->lastlineinstance);
03110       if (!l) {
03111          return 0;
03112       }
03113    } else {
03114       l = sub->parent;
03115    }
03116 
03117    switch(event) {
03118    case STIMULUS_REDIAL:
03119       if (skinnydebug)
03120          ast_verbose("Received Stimulus: Redial(%d/%d)\n", instance, callreference);
03121 
03122 #if 0
03123       if (ast_strlen_zero(l->lastnumberdialed)) {
03124          ast_log(LOG_WARNING, "Attempted redial, but no previously dialed number found.\n");
03125          l->hookstate = SKINNY_ONHOOK;
03126          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
03127          transmit_callstate(s, l->instance, SKINNY_ONHOOK, instance);
03128          break;
03129       }
03130 
03131       c = skinny_new(l, AST_STATE_DOWN);
03132       if(!c) {
03133          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03134       } else {
03135          sub = c->tech_pvt;
03136          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03137          if (skinnydebug)
03138             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03139          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03140          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03141          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
03142 
03143          if (!ast_ignore_pattern(c->context, l->lastnumberdialed)) {
03144             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03145          }
03146          ast_copy_string(c->exten, l->lastnumberdialed, sizeof(c->exten));
03147          if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
03148             ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
03149             ast_hangup(c);
03150          }
03151       }
03152 #endif
03153       break;
03154    case STIMULUS_SPEEDDIAL:
03155       if (skinnydebug)
03156          ast_verbose("Received Stimulus: SpeedDial(%d/%d)\n", instance, callreference);
03157 
03158 #if 0
03159       if (!(sd = find_speeddial_by_instance(d, instance))) {
03160          return 0;
03161       }
03162 
03163       if (ast_strlen_zero(l->lastnumberdialed)) {
03164          ast_log(LOG_WARNING, "Attempted redial, but no previously dialed number found.\n");
03165          l->hookstate = SKINNY_ONHOOK;
03166          transmit_speaker_mode(s, SKINNY_SPEAKEROFF);
03167          transmit_callstate(s, l->instance, SKINNY_ONHOOK, instance);
03168          break;
03169       }
03170 
03171       c = skinny_new(l, AST_STATE_DOWN);
03172       if(c) {
03173          sub = c->tech_pvt;
03174          l = sub->parent;
03175          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03176          if (skinnydebug)
03177             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03178          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03179          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03180          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
03181 
03182          if (!ast_ignore_pattern(c->context, sd->exten)) {
03183             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03184          }
03185          if (ast_exists_extension(c, c->context, sd->exten, 1, l->cid_num)) {
03186             if (!ast_matchmore_extension(c, c->context, sd->exten, 1, l->cid_num)) {
03187                ast_copy_string(c->exten, sd->exten, sizeof(c->exten));
03188                ast_copy_string(l->lastnumberdialed, sd->exten, sizeof(l->lastnumberdialed));
03189                skinny_newcall(c);
03190                break;
03191             }
03192          }
03193       } else {
03194          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03195       }
03196 #endif
03197       break;
03198    case STIMULUS_HOLD:
03199       if (skinnydebug)
03200          ast_verbose("Received Stimulus: Hold(%d/%d)\n", instance, callreference);
03201 
03202       if (!sub)
03203          break;
03204 
03205       if (sub->onhold) {
03206          skinny_unhold(sub);
03207       } else {
03208          skinny_hold(sub);
03209       }
03210       break;
03211    case STIMULUS_TRANSFER:
03212       if (skinnydebug)
03213          ast_verbose("Received Stimulus: Transfer(%d/%d)\n", instance, callreference);
03214       /* XXX figure out how to transfer */
03215       break;
03216    case STIMULUS_CONFERENCE:
03217       if (skinnydebug)
03218          ast_verbose("Received Stimulus: Conference(%d/%d)\n", instance, callreference);
03219       /* XXX determine the best way to pull off a conference.  Meetme? */
03220       break;
03221    case STIMULUS_VOICEMAIL:
03222       if (skinnydebug)
03223          ast_verbose("Received Stimulus: Voicemail(%d/%d)\n", instance, callreference);
03224       /* XXX Find and dial voicemail extension */
03225       break;
03226    case STIMULUS_CALLPARK:
03227       if (skinnydebug)
03228          ast_verbose("Received Stimulus: Park Call(%d/%d)\n", instance, callreference);
03229       /* XXX Park the call */
03230       break;
03231    case STIMULUS_FORWARDALL:
03232       if (skinnydebug)
03233          ast_verbose("Received Stimulus: Forward All(%d/%d)\n", instance, callreference);
03234       /* Why is DND under FORWARDALL? */
03235       /* Because it's the same thing. */
03236 
03237       /* Do not disturb */
03238       if (l->dnd != 0){
03239          if (option_verbose > 2)
03240             ast_verbose(VERBOSE_PREFIX_3 "Disabling DND on %s@%s\n", l->name, d->name);
03241          l->dnd = 0;
03242          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_ON);
03243          transmit_displaynotify(s, "DnD disabled", 10);
03244       } else {
03245          if (option_verbose > 2)
03246             ast_verbose(VERBOSE_PREFIX_3 "Enabling DND on %s@%s\n", l->name, d->name);
03247          l->dnd = 1;
03248          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_OFF);
03249          transmit_displaynotify(s, "DnD enabled", 10);
03250       }
03251       break;
03252    case STIMULUS_FORWARDBUSY:
03253       if (skinnydebug)
03254          ast_verbose("Received Stimulus: Forward Busy (%d/%d)\n", instance, callreference);
03255       break;
03256    case STIMULUS_FORWARDNOANSWER:
03257       if (skinnydebug)
03258          ast_verbose("Received Stimulus: Forward No Answer (%d/%d)\n", instance, callreference);
03259       break;
03260    case STIMULUS_DISPLAY:
03261       /* Not sure what this is */
03262       if (skinnydebug)
03263          ast_verbose("Received Stimulus: Display(%d/%d)\n", instance, callreference);
03264       break;
03265    case STIMULUS_LINE:
03266       if (skinnydebug)
03267          ast_verbose("Received Stimulus: Line(%d/%d)\n", instance, callreference);
03268 
03269       l = find_line_by_instance(s->device, instance);
03270 
03271       if (!l) {
03272          return 0;
03273       }
03274 
03275       /* turn the speaker on */
03276       transmit_speaker_mode(s, SKINNY_SPEAKERON);
03277       transmit_ringer_mode(s, SKINNY_RING_OFF);
03278       transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
03279 
03280       l->hookstate = SKINNY_OFFHOOK;
03281 
03282       if (sub && sub->outgoing) {
03283          /* We're answering a ringing call */
03284          ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
03285          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03286          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03287          transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
03288          transmit_displaypromptstatus(s, "Connected", 0, l->instance, sub->callid);
03289          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
03290          start_rtp(sub);
03291          ast_setstate(sub->owner, AST_STATE_UP);
03292       } else {
03293          if (sub && sub->owner) {
03294             ast_log(LOG_DEBUG, "Current subchannel [%s] already has owner\n", sub->owner->name);
03295          } else {
03296             c = skinny_new(l, AST_STATE_DOWN);
03297             if(c) {
03298                sub = c->tech_pvt;
03299                transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03300                if (skinnydebug)
03301                   ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03302                transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03303                transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03304                transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
03305 
03306                /* start the switch thread */
03307                if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
03308                   ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
03309                   ast_hangup(c);
03310                }
03311             } else {
03312                ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03313             }
03314          }
03315       }
03316       break;
03317    default:
03318       if (skinnydebug)
03319          ast_verbose("RECEIVED UNKNOWN STIMULUS:  %d(%d/%d)\n", event, instance, callreference);
03320       break;
03321    }
03322    return 1;
03323 }
03324 
03325 static int handle_offhook_message(struct skinny_req *req, struct skinnysession *s)
03326 {
03327    struct skinny_device *d = s->device;
03328    struct skinny_line *l;
03329    struct skinny_subchannel *sub;
03330    struct ast_channel *c;
03331    pthread_t t;
03332    int unknown1;
03333    int unknown2;
03334 
03335    unknown1 = letohl(req->data.offhook.unknown1);
03336    unknown2 = letohl(req->data.offhook.unknown2);
03337 
03338    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03339 
03340    if (!sub) {
03341       l = find_line_by_instance(d, d->lastlineinstance);
03342       if (!l) {
03343          return 0;
03344       }
03345    } else {
03346       l = sub->parent;
03347    }
03348 
03349    transmit_ringer_mode(s, SKINNY_RING_OFF);
03350    l->hookstate = SKINNY_OFFHOOK;
03351 
03352    if (sub && sub->onhold) {
03353       return 1;
03354    }
03355 
03356    transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
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_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
03365       start_rtp(sub);
03366       ast_setstate(sub->owner, AST_STATE_UP);
03367    } else {
03368       if (sub && sub->owner) {
03369          ast_log(LOG_DEBUG, "Current sub [%s] already has owner\n", sub->owner->name);
03370       } else {
03371          c = skinny_new(l, AST_STATE_DOWN);
03372          if(c) {
03373             sub = c->tech_pvt;
03374             transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03375             if (skinnydebug)
03376                ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03377             transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03378             transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03379             transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
03380 
03381             /* start the switch thread */
03382             if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
03383                ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
03384                ast_hangup(c);
03385             }
03386          } else {
03387             ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03388          }
03389       }
03390    }
03391    return 1;
03392 }
03393 
03394 static int handle_onhook_message(struct skinny_req *req, struct skinnysession *s)
03395 {
03396    struct skinny_device *d = s->device;
03397    struct skinny_line *l;
03398    struct skinny_subchannel *sub;
03399    int unknown1;
03400    int unknown2;
03401 
03402    unknown1 = letohl(req->data.onhook.unknown1);
03403    unknown2 = letohl(req->data.onhook.unknown2);
03404 
03405    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03406 
03407    if (!sub) {
03408       return 0;
03409    }
03410    l = sub->parent;
03411 
03412    if (l->hookstate == SKINNY_ONHOOK) {
03413       /* Something else already put us back on hook */
03414       return 0;
03415    }
03416    l->hookstate = SKINNY_ONHOOK;
03417 
03418    if (sub->onhold) {
03419       return 0;
03420    }
03421 
03422    sub->cxmode = SKINNY_CX_RECVONLY;
03423    transmit_callstate(s, l->instance, l->hookstate, sub->callid);
03424    if (skinnydebug)
03425       ast_verbose("Skinny %s@%s went on hook\n", l->name, d->name);
03426    if (l->transfer && (sub->owner && sub->next && sub->next->owner) && ((!sub->outgoing) || (sub->next && !sub->next->outgoing))) {
03427       /* We're allowed to transfer, we have two active calls and
03428          we made at least one of the calls.  Let's try and transfer */
03429 
03430 #if 0
03431       if ((res = attempt_transfer(p)) < 0) {
03432          if (sub->next && sub->next->owner) {
03433             sub->next->alreadygone = 1;
03434             ast_queue_hangup(sub->next->owner,1);
03435          }
03436       } else if (res) {
03437          ast_log(LOG_WARNING, "Transfer attempt failed\n");
03438          return 0;
03439       }
03440 #endif
03441    } else {
03442       /* Hangup the current call */
03443       /* If there is another active call, skinny_hangup will ring the phone with the other call */
03444       if (sub->owner) {
03445          sub->alreadygone = 1;
03446          ast_queue_hangup(sub->owner);
03447       } else {
03448          ast_log(LOG_WARNING, "Skinny(%s@%s-%d) channel already destroyed\n",
03449             l->name, d->name, sub->callid);
03450       }
03451    }
03452    if ((l->hookstate == SKINNY_ONHOOK) && (sub->next && !sub->next->rtp)) {
03453       do_housekeeping(s);
03454    }
03455    return 1;
03456 }
03457 
03458 static int handle_capabilities_res_message(struct skinny_req *req, struct skinnysession *s)
03459 {
03460    struct skinny_device *d = s->device;
03461    struct skinny_line *l;
03462    uint32_t count = 0;
03463    int codecs = 0;
03464    int i;
03465 
03466    count = letohl(req->data.caps.count);
03467    if (count > SKINNY_MAX_CAPABILITIES) {
03468       count = SKINNY_MAX_CAPABILITIES;
03469       ast_log(LOG_WARNING, "Received more capabilities than we can handle (%d).  Ignoring the rest.\n", SKINNY_MAX_CAPABILITIES);
03470    }
03471 
03472    for (i = 0; i < count; i++) {
03473       int acodec = 0;
03474       int scodec = 0;
03475       scodec = letohl(req->data.caps.caps[i].codec);
03476       acodec = codec_skinny2ast(scodec);
03477       if (skinnydebug)
03478          ast_verbose("Adding codec capability '%d (%d)'\n", acodec, scodec);
03479       codecs |= acodec;
03480    }
03481 
03482    d->capability &= codecs;
03483    ast_verbose("Device capability set to '%d'\n", d->capability);
03484    for (l = d->lines; l; l = l->next) {
03485       ast_mutex_lock(&l->lock);
03486       l->capability = d->capability;
03487       ast_mutex_unlock(&l->lock);
03488    }
03489 
03490    return 1;
03491 }
03492 
03493 static int handle_speed_dial_stat_req_message(struct skinny_req *req, struct skinnysession *s)
03494 {
03495    struct skinny_device *d = s->device;
03496    struct skinny_speeddial *sd;
03497    int instance;
03498 
03499    instance = letohl(req->data.speeddialreq.speedDialNumber);
03500 
03501    sd = find_speeddial_by_instance(d, instance);
03502 
03503    if (!sd) {
03504       return 0;
03505    }
03506 
03507    if (!(req = req_alloc(sizeof(struct speed_dial_stat_res_message), SPEED_DIAL_STAT_RES_MESSAGE)))
03508       return -1;
03509 
03510    req->data.speeddialreq.speedDialNumber = htolel(instance);
03511    snprintf(req->data.speeddial.speedDialDirNumber, sizeof(req->data.speeddial.speedDialDirNumber), sd->exten);
03512    snprintf(req->data.speeddial.speedDialDisplayName, sizeof(req->data.speeddial.speedDialDisplayName), sd->label);
03513 
03514    transmit_response(s, req);
03515    return 1;
03516 }
03517 
03518 static int handle_line_state_req_message(struct skinny_req *req, struct skinnysession *s)
03519 {
03520    struct skinny_device *d = s->device;
03521    struct skinny_line *l;
03522    int instance;
03523 
03524    instance = letohl(req->data.line.lineNumber);
03525 
03526    ast_mutex_lock(&devicelock);
03527 
03528    l = find_line_by_instance(d, instance);
03529 
03530    if (!l) {
03531       return 0;
03532    }
03533 
03534    ast_mutex_unlock(&devicelock);
03535 
03536    if (!(req = req_alloc(sizeof(struct line_stat_res_message), LINE_STAT_RES_MESSAGE)))
03537       return -1;
03538 
03539    req->data.linestat.lineNumber = letohl(instance);
03540    memcpy(req->data.linestat.lineDirNumber, l->name,
03541          sizeof(req->data.linestat.lineDirNumber));
03542    memcpy(req->data.linestat.lineDisplayName, l->label,
03543          sizeof(req->data.linestat.lineDisplayName));
03544    transmit_response(s,req);
03545    return 1;
03546 }
03547 
03548 static int handle_time_date_req_message(struct skinny_req *req, struct skinnysession *s)
03549 {
03550    time_t timer;
03551    struct tm *cmtime;
03552 
03553    if (!(req = req_alloc(sizeof(struct definetimedate_message), DEFINETIMEDATE_MESSAGE)))
03554       return -1;
03555 
03556    timer = time(NULL);
03557    cmtime = localtime(&timer);
03558    req->data.definetimedate.year = htolel(cmtime->tm_year+1900);
03559    req->data.definetimedate.month = htolel(cmtime->tm_mon+1);
03560    req->data.definetimedate.dayofweek = htolel(cmtime->tm_wday);
03561    req->data.definetimedate.day = htolel(cmtime->tm_mday);
03562    req->data.definetimedate.hour = htolel(cmtime->tm_hour);
03563    req->data.definetimedate.minute = htolel(cmtime->tm_min);
03564    req->data.definetimedate.seconds = htolel(cmtime->tm_sec);
03565    req->data.definetimedate.milliseconds = htolel(0);
03566    req->data.definetimedate.timestamp = htolel(timer);
03567    transmit_response(s, req);
03568    return 1;
03569 }
03570 
03571 static int handle_button_template_req_message(struct skinny_req *req, struct skinnysession *s)
03572 {
03573    struct skinny_device *d = s->device;
03574    struct skinny_line *l;
03575    int i;
03576 
03577    struct skinny_speeddial *sd;
03578    struct button_definition_template btn[42];
03579    int lineInstance = 1;
03580    int speeddialInstance = 1;
03581    int buttonCount = 0;
03582 
03583    if (!(req = req_alloc(sizeof(struct button_template_res_message), BUTTON_TEMPLATE_RES_MESSAGE)))
03584       return -1;
03585 
03586    memset(&btn, 0, sizeof(btn));
03587 
03588    get_button_template(s, btn);
03589 
03590    for (i=0; i<42; i++) {
03591       int btnSet = 0;
03592       switch (btn[i].buttonDefinition) {
03593          case BT_CUST_LINESPEEDDIAL:
03594             /* assume failure */
03595             req->data.buttontemplate.definition[i].buttonDefinition = BT_NONE;
03596             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03597 
03598             for (l = d->lines; l; l = l->next) {
03599                if (l->instance == lineInstance) {
03600                   ast_verbose("Adding button: %d, %d\n", BT_LINE, lineInstance);
03601                   req->data.buttontemplate.definition[i].buttonDefinition = BT_LINE;
03602                   req->data.buttontemplate.definition[i].instanceNumber = htolel(lineInstance);
03603                   lineInstance++;
03604                   buttonCount++;
03605                   btnSet = 1;
03606                   break;
03607                }
03608             }
03609 
03610             if (!btnSet) {
03611                for (sd = d->speeddials; sd; sd = sd->next) {
03612                   if (sd->instance == speeddialInstance) {
03613                      ast_verbose("Adding button: %d, %d\n", BT_SPEEDDIAL, speeddialInstance);
03614                      req->data.buttontemplate.definition[i].buttonDefinition = BT_SPEEDDIAL;
03615                      req->data.buttontemplate.definition[i].instanceNumber = htolel(speeddialInstance);
03616                      speeddialInstance++;
03617                      buttonCount++;
03618                      btnSet = 1;
03619                      break;
03620                   }
03621                }
03622             }
03623             break;
03624          case BT_LINE:
03625             req->data.buttontemplate.definition[i].buttonDefinition = htolel(BT_NONE);
03626             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03627 
03628             for (l = d->lines; l; l = l->next) {
03629                if (l->instance == lineInstance) {
03630                   ast_verbose("Adding button: %d, %d\n", BT_LINE, lineInstance);
03631                   req->data.buttontemplate.definition[i].buttonDefinition = BT_LINE;
03632                   req->data.buttontemplate.definition[i].instanceNumber = htolel(lineInstance);
03633                   lineInstance++;
03634                   buttonCount++;
03635                   btnSet = 1;
03636                   break;
03637                }
03638             }
03639             break;
03640          case BT_SPEEDDIAL:
03641             req->data.buttontemplate.definition[i].buttonDefinition = BT_NONE;
03642             req->data.buttontemplate.definition[i].instanceNumber = 0;
03643 
03644             for (sd = d->speeddials; sd; sd = sd->next) {
03645                if (sd->instance == speeddialInstance) {
03646                   ast_verbose("Adding button: %d, %d\n", BT_SPEEDDIAL, speeddialInstance);
03647                   req->data.buttontemplate.definition[i].buttonDefinition = BT_SPEEDDIAL;
03648                   req->data.buttontemplate.definition[i].instanceNumber = htolel(speeddialInstance);
03649                   speeddialInstance++;
03650                   buttonCount++;
03651                   btnSet = 1;
03652                   break;
03653                }
03654             }
03655             break;
03656          case BT_CUST_HINT:
03657             break;
03658          case BT_NONE:
03659             break;
03660          default:
03661             ast_verbose("Adding button: %d, %d\n", btn[i].buttonDefinition, 0);
03662             req->data.buttontemplate.definition[i].buttonDefinition = htolel(btn[i].buttonDefinition);
03663             req->data.buttontemplate.definition[i].instanceNumber = htolel(0);
03664             buttonCount++;
03665             btnSet = 1;
03666             break;
03667       }
03668    }
03669 
03670    req->data.buttontemplate.buttonOffset = htolel(0);
03671    req->data.buttontemplate.buttonCount = htolel(buttonCount);
03672    req->data.buttontemplate.totalButtonCount = htolel(buttonCount);
03673 
03674    if (skinnydebug)
03675       ast_verbose("Sending %d template to %s\n",
03676                d->type,
03677                d->name);
03678    transmit_response(s, req);
03679    return 1;
03680 }
03681 
03682 static int handle_version_req_message(struct skinny_req *req, struct skinnysession *s)
03683 {
03684    struct skinny_device *d = s->device;
03685    if (!(req = req_alloc(sizeof(struct version_res_message), VERSION_RES_MESSAGE)))
03686       return -1;
03687 
03688    snprintf(req->data.version.version, sizeof(req->data.version.version), d->version_id);
03689    transmit_response(s, req);
03690    return 1;
03691 }
03692 
03693 static int handle_server_request_message(struct skinny_req *req, struct skinnysession *s)
03694 {
03695    struct skinny_device *d = s->device;
03696    if (!(req = req_alloc(sizeof(struct server_res_message), SERVER_RES_MESSAGE)))
03697       return -1;
03698 
03699    memcpy(req->data.serverres.server[0].serverName, ourhost,
03700          sizeof(req->data.serverres.server[0].serverName));
03701    req->data.serverres.serverListenPort[0] = htolel(ourport);
03702    req->data.serverres.serverIpAddr[0] = htolel(d->ourip.s_addr);
03703    transmit_response(s, req);
03704    return 1;
03705 }
03706 
03707 static int handle_alarm_message(struct skinny_req *req, struct skinnysession *s)
03708 {
03709    /* no response necessary */
03710    if (skinnydebug)
03711       ast_verbose("Received Alarm Message: %s\n", req->data.alarm.displayMessage);
03712 
03713    return 1;
03714 }
03715 
03716 static int handle_open_receive_channel_ack_message(struct skinny_req *req, struct skinnysession *s)
03717 {
03718    struct skinny_device *d = s->device;
03719    struct skinny_line *l;
03720    struct skinny_subchannel *sub;
03721    struct ast_format_list fmt;
03722    struct sockaddr_in sin;
03723    struct sockaddr_in us;
03724    uint32_t addr;
03725    int port;
03726    int status;
03727    int passthruid;
03728 
03729    status = letohl(req->data.openreceivechannelack.status);
03730    if (status) {
03731       ast_log(LOG_ERROR, "Open Receive Channel Failure\n");
03732       return 0;
03733    }
03734    addr = letohl(req->data.openreceivechannelack.ipAddr);
03735    port = letohl(req->data.openreceivechannelack.port);
03736    passthruid = letohl(req->data.openreceivechannelack.passThruId);
03737 
03738    sin.sin_family = AF_INET;
03739    sin.sin_addr.s_addr = addr;
03740    sin.sin_port = htons(port);
03741 
03742    sub = find_subchannel_by_reference(d, passthruid);
03743 
03744    if (!sub)
03745       return 0;
03746 
03747    l = sub->parent;
03748 
03749    if (sub->rtp) {
03750       ast_rtp_set_peer(sub->rtp, &sin);
03751       ast_rtp_get_us(sub->rtp, &us);
03752    } else {
03753       ast_log(LOG_ERROR, "No RTP structure, this is very bad\n");
03754       return 0;
03755    }
03756 
03757    if (skinnydebug) {
03758       ast_verbose("ipaddr = %s:%d\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port));
03759       ast_verbose("ourip = %s:%d\n", ast_inet_ntoa(d->ourip), ntohs(us.sin_port));
03760    }
03761 
03762    if (!(req = req_alloc(sizeof(struct start_media_transmission_message), START_MEDIA_TRANSMISSION_MESSAGE)))
03763       return -1;
03764 
03765    fmt = ast_codec_pref_getsize(&l->prefs, ast_best_codec(l->capability));
03766 
03767    if (skinnydebug)
03768       ast_verbose("Setting payloadType to '%d' (%d ms)\n", fmt.bits, fmt.cur_ms);
03769 
03770    req->data.startmedia.conferenceId = htolel(sub->callid);
03771    req->data.startmedia.passThruPartyId = htolel(sub->callid);
03772    req->data.startmedia.remoteIp = htolel(d->ourip.s_addr);
03773    req->data.startmedia.remotePort = htolel(ntohs(us.sin_port));
03774    req->data.startmedia.packetSize = htolel(fmt.cur_ms);
03775    req->data.startmedia.payloadType = htolel(codec_ast2skinny(fmt.bits));
03776    req->data.startmedia.qualifier.precedence = htolel(127);
03777    req->data.startmedia.qualifier.vad = htolel(0);
03778    req->data.startmedia.qualifier.packets = htolel(0);
03779    req->data.startmedia.qualifier.bitRate = htolel(0);
03780    transmit_response(s, req);
03781 
03782    return 1;
03783 }
03784 
03785 static int handle_enbloc_call_message(struct skinny_req *req, struct skinnysession *s)
03786 {
03787    struct skinny_device *d = s->device;
03788    struct skinny_line *l;
03789    struct skinny_subchannel *sub = NULL;
03790    struct ast_channel *c;
03791    pthread_t t;
03792 
03793    if (skinnydebug)
03794       ast_verbose("Received Enbloc Call: %s\n", req->data.enbloccallmessage.calledParty);
03795 
03796    sub = find_subchannel_by_instance_reference(d, d->lastlineinstance, d->lastcallreference);
03797 
03798    if (!sub) {
03799       l = find_line_by_instance(d, d->lastlineinstance);
03800       if (!l) {
03801          return 0;
03802       }
03803    } else {
03804       l = sub->parent;
03805    }
03806 
03807    c = skinny_new(l, AST_STATE_DOWN);
03808 
03809    if(!c) {
03810       ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03811    } else {
03812       l->hookstate = SKINNY_OFFHOOK;
03813 
03814       sub = c->tech_pvt;
03815       transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03816       if (skinnydebug)
03817          ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03818       transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03819       transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03820 
03821       if (!ast_ignore_pattern(c->context, req->data.enbloccallmessage.calledParty)) {
03822          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03823       }
03824       ast_copy_string(c->exten, req->data.enbloccallmessage.calledParty, sizeof(c->exten));
03825       if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
03826          ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
03827          ast_hangup(c);
03828       }
03829    }
03830    
03831    return 1;
03832 }
03833 
03834 
03835 static int handle_soft_key_set_req_message(struct skinny_req *req, struct skinnysession *s)
03836 {
03837    int i;
03838    int x;
03839    int y;
03840    const struct soft_key_definitions *softkeymode = soft_key_default_definitions;
03841 
03842    if (!(req = req_alloc(sizeof(struct soft_key_set_res_message), SOFT_KEY_SET_RES_MESSAGE)))
03843       return -1;
03844 
03845    req->data.softkeysets.softKeySetOffset = htolel(0);
03846    req->data.softkeysets.softKeySetCount = htolel(11);
03847    req->data.softkeysets.totalSoftKeySetCount = htolel(11);
03848    for (x = 0; x < sizeof(soft_key_default_definitions) / sizeof(struct soft_key_definitions); x++) {
03849       const uint8_t *defaults = softkeymode->defaults;
03850       /* XXX I wanted to get the size of the array dynamically, but that wasn't wanting to work.
03851          This will have to do for now. */
03852       for (y = 0; y < softkeymode->count; y++) {
03853          for (i = 0; i < (sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition)); i++) {
03854             if (defaults[y] == i+1) {
03855                req->data.softkeysets.softKeySetDefinition[softkeymode->mode].softKeyTemplateIndex[y] = htolel(i+1);
03856                req->data.softkeysets.softKeySetDefinition[softkeymode->mode].softKeyInfoIndex[y] = htolel(i+301);
03857             }
03858          }
03859       }
03860       softkeymode++;
03861    }
03862    transmit_response(s,req);
03863    transmit_selectsoftkeys(s, 0, 0, KEYDEF_ONHOOK);
03864    return 1;
03865 }
03866 
03867 static int handle_soft_key_event_message(struct skinny_req *req, struct skinnysession *s)
03868 {
03869    struct skinny_device *d = s->device;
03870    struct skinny_line *l;
03871    struct skinny_subchannel *sub = NULL;
03872    struct ast_channel *c;
03873    pthread_t t;
03874    int event;
03875    int instance;
03876    int callreference;
03877 
03878    event = letohl(req->data.softkeyeventmessage.softKeyEvent);
03879    instance = letohl(req->data.softkeyeventmessage.instance);
03880    callreference = letohl(req->data.softkeyeventmessage.callreference);
03881 
03882    if (instance) {
03883       l = find_line_by_instance(d, instance);
03884       if (callreference) {
03885          sub = find_subchannel_by_instance_reference(d, instance, callreference);
03886       } else {
03887          sub = find_subchannel_by_instance_reference(d, instance, d->lastcallreference);
03888       }
03889    } else {
03890       l = find_line_by_instance(d, d->lastlineinstance);
03891    }
03892 
03893    if (!l) {
03894       if (skinnydebug)
03895          ast_verbose("Received Softkey Event: %d(%d/%d)\n", event, instance, callreference);
03896       return 0;
03897    }
03898 
03899    switch(event) {
03900    case SOFTKEY_NONE:
03901       if (skinnydebug)
03902          ast_verbose("Received Softkey Event: None(%d/%d)\n", instance, callreference);
03903       break;
03904    case SOFTKEY_REDIAL:
03905       if (skinnydebug)
03906          ast_verbose("Received Softkey Event: Redial(%d/%d)\n", instance, callreference);
03907 
03908 #if 0
03909       if (!sub || !sub->owner) {
03910          c = skinny_new(l, AST_STATE_DOWN);
03911       } else {
03912          c = sub->owner;
03913       }
03914 
03915       if(!c) {
03916          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03917       } else {
03918          sub = c->tech_pvt;
03919          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03920          if (skinnydebug)
03921             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03922          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03923          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03924          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_RINGOUT);
03925 
03926          if (!ast_ignore_pattern(c->context, l->lastnumberdialed)) {
03927             transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
03928          }
03929          ast_copy_string(c->exten, l->lastnumberdialed, sizeof(c->exten));
03930          if (ast_pthread_create(&t, NULL, skinny_newcall, c)) {
03931             ast_log(LOG_WARNING, "Unable to create new call thread: %s\n", strerror(errno));
03932             ast_hangup(c);
03933          }
03934       }
03935 #endif
03936       break;
03937    case SOFTKEY_NEWCALL:  /* Actually the DIAL softkey */
03938       if (skinnydebug)
03939          ast_verbose("Received Softkey Event: New Call(%d/%d)\n", instance, callreference);
03940 
03941       if (!sub || !sub->owner) {
03942          c = skinny_new(l, AST_STATE_DOWN);
03943       } else {
03944          c = sub->owner;
03945       }
03946 
03947       if (!c) {
03948          ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", l->name, d->name);
03949       } else {
03950          sub = c->tech_pvt;
03951          if (l->hookstate == SKINNY_ONHOOK) {
03952             l->hookstate = SKINNY_OFFHOOK;
03953             transmit_speaker_mode(s, SKINNY_SPEAKERON);
03954             transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
03955          }
03956 
03957          if (skinnydebug)
03958             ast_verbose("Attempting to Clear display on Skinny %s@%s\n", l->name, d->name);
03959          transmit_displaymessage(s, NULL, l->instance, sub->callid); /* clear display */
03960          transmit_tone(s, SKINNY_DIALTONE, l->instance, sub->callid);
03961          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_OFFHOOK);
03962 
03963          /* start the switch thread */
03964          if (ast_pthread_create(&t, NULL, skinny_ss, c)) {
03965             ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno));
03966             ast_hangup(c);
03967          }
03968       }
03969       break;
03970    case SOFTKEY_HOLD:
03971       if (skinnydebug)
03972          ast_verbose("Received Softkey Event: Hold(%d/%d)\n", instance, callreference);
03973 
03974       if (sub) {
03975          if (sub->onhold) {
03976             skinny_unhold(sub);
03977          } else {
03978             skinny_hold(sub);
03979          }
03980       }
03981             
03982       break;
03983    case SOFTKEY_TRNSFER:
03984       if (skinnydebug)
03985          ast_verbose("Received Softkey Event: Transfer(%d/%d)\n", instance, callreference);
03986       /* XXX figure out how to transfer */
03987       break;
03988    case SOFTKEY_CFWDALL:
03989       if (skinnydebug)
03990          ast_verbose("Received Softkey Event: Forward All(%d/%d)\n", instance, callreference);
03991 
03992       /* Do not disturb */
03993       if (l->dnd != 0){
03994          if (option_verbose > 2)
03995             ast_verbose(VERBOSE_PREFIX_3 "Disabling DND on %s@%s\n", l->name, d->name);
03996          l->dnd = 0;
03997          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_ON);
03998          transmit_displaynotify(s, "DnD disabled", 10);
03999       } else {
04000          if (option_verbose > 2)
04001             ast_verbose(VERBOSE_PREFIX_3 "Enabling DND on %s@%s\n", l->name, d->name);
04002          l->dnd = 1;
04003          transmit_lamp_indication(s, STIMULUS_FORWARDALL, 1, SKINNY_LAMP_OFF);
04004          transmit_displaynotify(s, "DnD enabled", 10);
04005       }
04006       break;
04007    case SOFTKEY_CFWDBUSY:
04008       if (skinnydebug)
04009          ast_verbose("Received Softkey Event: Forward Busy (%d/%d)\n", instance, callreference);
04010       break;
04011    case SOFTKEY_CFWDNOANSWER:
04012       if (skinnydebug)
04013          ast_verbose("Received Softkey Event: Forward No Answer (%d/%d)\n", instance, callreference);
04014       break;
04015    case SOFTKEY_BKSPC:
04016       if (skinnydebug)
04017          ast_verbose("Received Softkey Event: Backspace(%d/%d)\n", instance, callreference);
04018       break;
04019    case SOFTKEY_ENDCALL:
04020       if (skinnydebug)
04021          ast_verbose("Received Softkey Event: End Call(%d/%d)\n", instance, callreference);
04022 
04023       if (l->hookstate == SKINNY_ONHOOK) {
04024          /* Something else already put us back on hook */
04025          break;
04026       }
04027       if (sub) {
04028          sub->cxmode = SKINNY_CX_RECVONLY;
04029          l->hookstate = SKINNY_ONHOOK;
04030          transmit_callstate(s, l->instance, l->hookstate, sub->callid);
04031          if (skinnydebug)
04032             ast_verbose("Skinny %s@%s went on hook\n", l->name, d->name);
04033          if (l->transfer && (sub->owner && sub->next && sub->next->owner) && ((!sub->outgoing) || (sub->next && !sub->next->outgoing))) {
04034             /* We're allowed to transfer, we have two active calls and
04035                we made at least one of the calls.  Let's try and transfer */
04036 
04037 #if 0
04038             if ((res = attempt_transfer(p)) < 0) {
04039                if (sub->next && sub->next->owner) {
04040                   sub->next->alreadygone = 1;
04041                   ast_queue_hangup(sub->next->owner, 1);
04042                }
04043             } else if (res) {
04044                ast_log(LOG_WARNING, "Transfer attempt failed\n");
04045                break;
04046             }
04047 #endif
04048          } else {
04049             /* Hangup the current call */
04050             /* If there is another active call, skinny_hangup will ring the phone with the other call */
04051             if (sub->owner) {
04052                sub->alreadygone = 1;
04053                ast_queue_hangup(sub->owner);
04054             } else {
04055                ast_log(LOG_WARNING, "Skinny(%s@%s-%d) channel already destroyed\n",
04056                   l->name, d->name, sub->callid);
04057             }
04058          }
04059          if ((l->hookstate == SKINNY_ONHOOK) && (sub->next && !sub->next->rtp)) {
04060             do_housekeeping(s);
04061          }
04062       }
04063       break;
04064    case SOFTKEY_RESUME:
04065       if (skinnydebug)
04066          ast_verbose("Received Softkey Event: Resume(%d/%d)\n", instance, callreference);
04067       break;
04068    case SOFTKEY_ANSWER:
04069       if (skinnydebug)
04070          ast_verbose("Received Softkey Event: Answer(%d/%d)\n", instance, callreference);
04071 
04072       transmit_ringer_mode(s,SKINNY_RING_OFF);
04073       transmit_lamp_indication(s, STIMULUS_LINE, l->instance, SKINNY_LAMP_ON);
04074 
04075       l->hookstate = SKINNY_OFFHOOK;
04076 
04077       if (sub && sub->outgoing) {
04078          /* We're answering a ringing call */
04079          ast_queue_control(sub->owner, AST_CONTROL_ANSWER);
04080          transmit_callstate(s, l->instance, SKINNY_OFFHOOK, sub->callid);
04081          transmit_tone(s, SKINNY_SILENCE, l->instance, sub->callid);
04082          transmit_callstate(s, l->instance, SKINNY_CONNECTED, sub->callid);
04083          transmit_selectsoftkeys(s, l->instance, sub->callid, KEYDEF_CONNECTED);
04084          start_rtp(sub);
04085          ast_setstate(sub->owner, AST_STATE_UP);
04086       }
04087       break;
04088    case SOFTKEY_INFO:
04089       if (skinnydebug)
04090          ast_verbose("Received Softkey Event: Info(%d/%d)\n", instance, callreference);
04091       break;
04092    case SOFTKEY_CONFRN:
04093       if (skinnydebug)
04094          ast_verbose("Received Softkey Event: Conference(%d/%d)\n", instance, callreference);
04095       /* XXX determine the best way to pull off a conference.  Meetme? */
04096       break;
04097    case SOFTKEY_PARK:
04098       if (skinnydebug)
04099          ast_verbose("Received Softkey Event: Park Call(%d/%d)\n", instance, callreference);
04100       /* XXX Park the call */
04101       break;
04102    case SOFTKEY_JOIN:
04103       if (skinnydebug)
04104          ast_verbose("Received Softkey Event: Join(%d/%d)\n", instance, callreference);
04105       break;
04106    case SOFTKEY_MEETME:
04107       /* XXX How is this different from CONFRN? */
04108       if (skinnydebug)
04109          ast_verbose("Received Softkey Event: Meetme(%d/%d)\n", instance, callreference);
04110       break;
04111    case SOFTKEY_PICKUP:
04112       if (skinnydebug)
04113          ast_verbose("Received Softkey Event: Pickup(%d/%d)\n", instance, callreference);
04114       break;
04115    case SOFTKEY_GPICKUP:
04116       if (skinnydebug)
04117          ast_verbose("Received Softkey Event: Group Pickup(%d/%d)\n", instance, callreference);
04118       break;
04119    default:
04120       if (skinnydebug)
04121          ast_verbose("Received unknown Softkey Event: %d(%d/%d)\n", event, instance, callreference);
04122       break;
04123    }
04124    return 1;
04125 }
04126 
04127 static int handle_unregister_message(struct skinny_req *req, struct skinnysession *s)
04128 {
04129    return skinny_unregister(req, s);
04130 }
04131 
04132 static int handle_soft_key_template_req_message(struct skinny_req *req, struct skinnysession *s)
04133 {
04134    if (!(req = req_alloc(sizeof(struct soft_key_template_res_message), SOFT_KEY_TEMPLATE_RES_MESSAGE)))
04135       return -1;
04136 
04137    req->data.softkeytemplate.softKeyOffset = htolel(0);
04138    req->data.softkeytemplate.softKeyCount = htolel(sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition));
04139    req->data.softkeytemplate.totalSoftKeyCount = htolel(sizeof(soft_key_template_default) / sizeof(struct soft_key_template_definition));
04140    memcpy(req->data.softkeytemplate.softKeyTemplateDefinition,
04141       soft_key_template_default,
04142       sizeof(soft_key_template_default));
04143    transmit_response(s,req);
04144    return 1;
04145 }
04146 
04147 static int handle_headset_status_message(struct skinny_req *req, struct skinnysession *s)
04148 {
04149    /* XXX umm...okay?  Why do I care? */
04150    return 1;
04151 }
04152 
04153 static int handle_register_available_lines_message(struct skinny_req *req, struct skinnysession *s)
04154 {
04155    /* XXX I have no clue what this is for, but my phone was sending it, so... */
04156    return 1;
04157 }
04158 
04159 static int handle_message(struct skinny_req *req, struct skinnysession *s)
04160 {
04161    int res = 0;
04162    struct skinny_device *d = s->device;
04163    struct skinny_subchannel *sub;
04164    int lineInstance;
04165    int callReference;
04166 
04167    if ((!s->device) && (letohl(req->e) != REGISTER_MESSAGE && letohl(req->e) != ALARM_MESSAGE)) {
04168       ast_log(LOG_WARNING, "Client sent message #%d without first registering.\n", req->e);
04169       free(req);
04170       return 0;
04171    }
04172 
04173    switch(letohl(req->e))  {
04174    case KEEP_ALIVE_MESSAGE:
04175       res = handle_keep_alive_message(req, s);
04176       break;
04177    case REGISTER_MESSAGE:
04178       if (skinnydebug)
04179          ast_verbose("Device %s is attempting to register\n", req->data.reg.name);
04180 
04181       res = handle_register_message(req, s);
04182       break;
04183    case IP_PORT_MESSAGE:
04184       res = handle_ip_port_message(req, s);
04185       break;
04186    case KEYPAD_BUTTON_MESSAGE:
04187       if (skinnydebug)
04188          ast_verbose("Collected digit: [%d]\n", letohl(req->data.keypad.button));
04189 
04190       lineInstance = letohl(req->data.keypad.lineInstance);
04191       callReference = letohl(req->data.keypad.callReference);
04192 
04193       sub = find_subchannel_by_instance_reference(d, lineInstance, callReference);
04194 
04195       if (sub && (sub->owner && sub->owner->_state <  AST_STATE_UP)) {
04196          char dgt;
04197          int digit = letohl(req->data.keypad.button);
04198          size_t len;
04199 
04200          if (digit == 14) {
04201             dgt = '*';
04202          } else if (digit == 15) {
04203             dgt = '#';
04204          } else if (digit >= 0 && digit <= 9) {
04205             dgt = '0' + digit;
04206          } else {
04207             /* digit=10-13 (A,B,C,D ?), or
04208             * digit is bad value
04209             *
04210             * probably should not end up here, but set
04211             * value for backward compatibility, and log
04212             * a warning.
04213             */
04214             dgt = '0' + digit;
04215             ast_log(LOG_WARNING, "Unsupported digit %d\n", digit);
04216          }
04217 
04218          len = strlen(d->exten);
04219          if (len < sizeof(d->exten) - 1) {
04220             d->exten[len] = dgt;
04221             d->exten[len+1] = '\0';
04222          } else {
04223             ast_log(LOG_WARNING, "Dropping digit with value %d because digit queue is full\n", dgt);
04224          }
04225       } else
04226          res = handle_keypad_button_message(req, s);
04227       break;
04228    case ENBLOC_CALL_MESSAGE:
04229       res = handle_enbloc_call_message(req, s);
04230       break;
04231    case STIMULUS_MESSAGE:
04232       res = handle_stimulus_message(req, s);
04233       break;
04234    case OFFHOOK_MESSAGE:
04235       res = handle_offhook_message(req, s);
04236       break;
04237    case ONHOOK_MESSAGE:
04238       res = handle_onhook_message(req, s);
04239       break;
04240    case CAPABILITIES_RES_MESSAGE:
04241       if (skinnydebug)
04242          ast_verbose("Received CapabilitiesRes\n");
04243 
04244       res = handle_capabilities_res_message(req, s);
04245       break;
04246    case SPEED_DIAL_STAT_REQ_MESSAGE:
04247       if (skinnydebug)
04248          ast_verbose("Received SpeedDialStatRequest\n");
04249 
04250       res = handle_speed_dial_stat_req_message(req, s);
04251       break;
04252    case LINE_STATE_REQ_MESSAGE:
04253       if (skinnydebug)
04254          ast_verbose("Received LineStatRequest\n");
04255       res = handle_line_state_req_message(req, s);
04256       break;
04257    case TIME_DATE_REQ_MESSAGE:
04258       if (skinnydebug)
04259          ast_verbose("Received Time/Date Request\n");
04260 
04261       res = handle_time_date_req_message(req, s);
04262       break;
04263    case BUTTON_TEMPLATE_REQ_MESSAGE:
04264       if (skinnydebug)
04265          ast_verbose("Buttontemplate requested\n");
04266 
04267       res = handle_button_template_req_message(req, s);
04268       break;
04269    case VERSION_REQ_MESSAGE:
04270       if (skinnydebug)
04271          ast_verbose("Version Request\n");
04272 
04273       res = handle_version_req_message(req, s);
04274       break;
04275    case SERVER_REQUEST_MESSAGE:
04276       if (skinnydebug)
04277          ast_verbose("Received Server Request\n");
04278 
04279       res = handle_server_request_message(req, s);
04280       break;
04281    case ALARM_MESSAGE:
04282       res = handle_alarm_message(req, s);
04283       break;
04284    case OPEN_RECEIVE_CHANNEL_ACK_MESSAGE:
04285       if (skinnydebug)
04286          ast_verbose("Received Open Receive Channel Ack\n");
04287 
04288       res = handle_open_receive_channel_ack_message(req, s);
04289       break;
04290    case SOFT_KEY_SET_REQ_MESSAGE:
04291       if (skinnydebug)
04292          ast_verbose("Received SoftKeySetReq\n");
04293 
04294       res = handle_soft_key_set_req_message(req, s);
04295       break;
04296    case SOFT_KEY_EVENT_MESSAGE:
04297       res = handle_soft_key_event_message(req, s);
04298       break;
04299    case UNREGISTER_MESSAGE:
04300       if (skinnydebug)
04301          ast_verbose("Received Unregister Request\n");
04302 
04303       res = handle_unregister_message(req, s);
04304       break;
04305    case SOFT_KEY_TEMPLATE_REQ_MESSAGE:
04306       if (skinnydebug)
04307          ast_verbose("Received SoftKey Template Request\n");
04308 
04309       res = handle_soft_key_template_req_message(req, s);
04310       break;
04311    case HEADSET_STATUS_MESSAGE:
04312       res = handle_headset_status_message(req, s);
04313       break;
04314    case REGISTER_AVAILABLE_LINES_MESSAGE:
04315       res = handle_register_available_lines_message(req, s);
04316       break;
04317    default:
04318       if (skinnydebug)
04319          ast_verbose("RECEIVED UNKNOWN MESSAGE TYPE:  %x\n", letohl(req->e));
04320       break;
04321    }
04322    if (res >= 0 && req)
04323       free(req);
04324    return res;
04325 }
04326 
04327 static void destroy_session(struct skinnysession *s)
04328 {
04329    struct skinnysession *cur, *prev = NULL;
04330    ast_mutex_lock(&sessionlock);
04331    cur = sessions;
04332    while(cur) {
04333       if (cur == s) {
04334          break;
04335       }
04336       prev = cur;
04337       cur = cur->next;
04338    }
04339    if (cur) {
04340       if (prev) {
04341          prev->next = cur->next;
04342       } else {
04343          sessions = cur->next;
04344       }
04345       if (s->fd > -1) {
04346          close(s->fd);
04347       }
04348       ast_mutex_destroy(&s->lock);
04349       free(s);
04350    } else {
04351       ast_log(LOG_WARNING, "Trying to delete nonexistent session %p?\n", s);
04352    }
04353    ast_mutex_unlock(&sessionlock);
04354 }
04355 
04356 static int get_input(struct skinnysession *s)
04357 {
04358    int res;
04359    int dlen = 0;
04360    struct pollfd fds[1];
04361 
04362    fds[0].fd = s->fd;
04363    fds[0].events = POLLIN;
04364    fds[0].revents = 0;
04365    res = poll(fds, 1, (keep_alive * 1100)); /* If nothing has happen, client is dead */
04366                    /* we add 10% to the keep_alive to deal */
04367                    /* with network delays, etc */
04368    if (res < 0) {
04369       if (errno != EINTR) {
04370          ast_log(LOG_WARNING, "Select returned error: %s\n", strerror(errno));
04371          return res;
04372       }
04373    } else if (res == 0) {
04374       if (skinnydebug)
04375          ast_verbose("Skinny Client was lost, unregistering\n");
04376       skinny_unregister(NULL, s);
04377       return -1;
04378    }
04379            
04380    if (fds[0].revents) {
04381       ast_mutex_lock(&s->lock);
04382       memset(s->inbuf,0,sizeof(s->inbuf));
04383       res = read(s->fd, s->inbuf, 4);
04384       if (res < 0) {
04385          ast_log(LOG_WARNING, "read() returned error: %s\n", strerror(errno));
04386 
04387          if (skinnydebug)
04388             ast_verbose("Skinny Client was lost, unregistering\n");
04389          
04390          skinny_unregister(NULL,s);
04391          ast_mutex_unlock(&s->lock);
04392          return res;
04393       } else if (res != 4) {
04394          ast_log(LOG_WARNING, "Skinny Client sent less data than expected.  Expected 4 but got %d.\n", res);
04395          ast_mutex_unlock(&s->lock);
04396          
04397          if (res == 0) {
04398             if (skinnydebug)
04399                ast_verbose("Skinny Client was lost, unregistering\n");
04400             skinny_unregister(NULL, s);
04401          }
04402            
04403          return -1;
04404       }
04405       
04406       dlen = letohl(*(int *)s->inbuf);
04407       if (dlen < 4) {
04408          ast_log(LOG_WARNING, "Skinny Client sent invalid data.\n");
04409          ast_mutex_unlock(&s->lock);
04410          return -1;
04411       }
04412       if (dlen+8 > sizeof(s->inbuf)) {
04413          dlen = sizeof(s->inbuf) - 8;
04414       }
04415       *(int *)s->inbuf = htolel(dlen);
04416 
04417       res = read(s->fd, s->inbuf+4, dlen+4);
04418       ast_mutex_unlock(&s->lock);
04419       if (res < 0) {
04420          ast_log(LOG_WARNING, "read() returned error: %s\n", strerror(errno));
04421          return res;
04422       } else if (res != (dlen+4)) {
04423          ast_log(LOG_WARNING, "Skinny Client sent less data than expected.\n");
04424          return -1;
04425       }
04426       return res;
04427    }
04428    return 0;
04429 }
04430 
04431 static struct skinny_req *skinny_req_parse(struct skinnysession *s)
04432 {
04433    struct skinny_req *req;
04434 
04435    if (!(req = ast_calloc(1, SKINNY_MAX_PACKET)))
04436       return NULL;
04437 
04438    ast_mutex_lock(&s->lock);
04439    memcpy(req, s->inbuf, skinny_header_size);
04440    memcpy(&req->data, s->inbuf+skinny_header_size, letohl(*(int*)(s->inbuf))-4);
04441 
04442    ast_mutex_unlock(&s->lock);
04443 
04444    if (letohl(req->e) < 0) {
04445       ast_log(LOG_ERROR, "Event Message is NULL from socket %d, This is bad\n", s->fd);
04446       free(req);
04447       return NULL;
04448    }
04449 
04450    return req;
04451 }
04452 
04453 static void *skinny_session(void *data)
04454 {
04455    int res;
04456    struct skinny_req *req;
04457    struct skinnysession *s = data;
04458 
04459    if (option_verbose > 2)
04460       ast_verbose(VERBOSE_PREFIX_3 "Starting Skinny session from %s\n", ast_inet_ntoa(s->sin.sin_addr));
04461 
04462    for (;;) {
04463       res = get_input(s);
04464       if (res < 0) {
04465          break;
04466       }
04467 
04468       if (res > 0)
04469       {
04470          if (!(req = skinny_req_parse(s))) {
04471             destroy_session(s);
04472             return NULL;
04473          }
04474 
04475          res = handle_message(req, s);
04476          if (res < 0) {
04477             destroy_session(s);
04478             return NULL;
04479          }
04480       }
04481    }
04482    ast_log(LOG_NOTICE, "Skinny Session returned: %s\n", strerror(errno));
04483 
04484    if (s) 
04485       destroy_session(s);
04486    
04487    return 0;
04488 }
04489 
04490 static void *accept_thread(void *ignore)
04491 {
04492    int as;
04493    struct sockaddr_in sin;
04494    socklen_t sinlen;
04495    struct skinnysession *s;
04496    struct protoent *p;
04497    int arg = 1;
04498    pthread_attr_t attr;
04499    pthread_t tcp_thread;
04500 
04501    pthread_attr_init(&attr);
04502    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
04503 
04504    for (;;) {
04505       sinlen = sizeof(sin);
04506       as = accept(skinnysock, (struct sockaddr *)&sin, &sinlen);
04507       if (as < 0) {
04508          ast_log(LOG_NOTICE, "Accept returned -1: %s\n", strerror(errno));
04509          continue;
04510       }
04511       p = getprotobyname("tcp");
04512       if(p) {
04513          if( setsockopt(as, p->p_proto, TCP_NODELAY, (char *)&arg, sizeof(arg) ) < 0 ) {
04514             ast_log(LOG_WARNING, "Failed to set Skinny tcp connection to TCP_NODELAY mode: %s\n", strerror(errno));
04515          }
04516       }
04517       if (!(s = ast_calloc(1, sizeof(struct skinnysession))))
04518          continue;
04519 
04520       memcpy(&s->sin, &sin, sizeof(sin));
04521       ast_mutex_init(&s->lock);
04522       s->fd = as;
04523       ast_mutex_lock(&sessionlock);
04524       s->next = sessions;
04525       sessions = s;
04526       ast_mutex_unlock(&sessionlock);
04527 
04528       if (ast_pthread_create(&tcp_thread, &attr, skinny_session, s)) {
04529          destroy_session(s);
04530       }
04531    }
04532    if (skinnydebug)
04533       ast_verbose("killing accept thread\n");
04534    close(as);
04535    pthread_attr_destroy(&attr);
04536    return 0;
04537 }
04538 
04539 static void *do_monitor(void *data)
04540 {
04541    int res;
04542 
04543    /* This thread monitors all the interfaces which are not yet in use
04544       (and thus do not have a separate thread) indefinitely */
04545    /* From here on out, we die whenever asked */
04546    for(;;) {
04547       pthread_testcancel();
04548       /* Wait for sched or io */
04549       res = ast_sched_wait(sched);
04550       if ((res < 0) || (res > 1000)) {
04551          res = 1000;
04552       }
04553       res = ast_io_wait(io, res);
04554       ast_mutex_lock(&monlock);
04555       if (res >= 0) {
04556          ast_sched_runq(sched);
04557       }
04558       ast_mutex_unlock(&monlock);
04559    }
04560    /* Never reached */
04561    return NULL;
04562 
04563 }
04564 
04565 static int restart_monitor(void)
04566 {
04567    /* If we're supposed to be stopped -- stay stopped */
04568    if (monitor_thread == AST_PTHREADT_STOP)
04569       return 0;
04570 
04571    ast_mutex_lock(&monlock);
04572    if (monitor_thread == pthread_self()) {
04573       ast_mutex_unlock(&monlock);
04574       ast_log(LOG_WARNING, "Cannot kill myself\n");
04575       return -1;
04576    }
04577    if (monitor_thread != AST_PTHREADT_NULL) {
04578       /* Wake up the thread */
04579       pthread_kill(monitor_thread, SIGURG);
04580    } else {
04581       /* Start a new monitor */
04582       if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) {
04583          ast_mutex_unlock(&monlock);
04584          ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
04585          return -1;
04586       }
04587    }
04588    ast_mutex_unlock(&monlock);
04589    return 0;
04590 }
04591 
04592 static struct ast_channel *skinny_request(const char *type, int format, void *data, int *cause)
04593 {
04594    int oldformat;
04595    
04596    struct skinny_line *l;
04597    struct ast_channel *tmpc = NULL;
04598    char tmp[256];
04599    char *dest = data;
04600 
04601    oldformat = format;
04602    
04603    if (!(format &= ((AST_FORMAT_MAX_AUDIO << 1) - 1))) {
04604       ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format);
04605       return NULL;   
04606    }     
04607 
04608    ast_copy_string(tmp, dest, sizeof(tmp));
04609    if (ast_strlen_zero(tmp)) {
04610       ast_log(LOG_NOTICE, "Skinny channels require a device\n");
04611       return NULL;
04612    }
04613    l = find_line_by_name(tmp);
04614    if (!l) {
04615       ast_log(LOG_NOTICE, "No available lines on: %s\n", dest);
04616       return NULL;
04617    }
04618    if (option_verbose > 2) {
04619       ast_verbose(VERBOSE_PREFIX_3 "skinny_request(%s)\n", tmp);
04620    }
04621    tmpc = skinny_new(l, AST_STATE_DOWN);
04622    if (!tmpc) {
04623       ast_log(LOG_WARNING, "Unable to make channel for '%s'\n", tmp);
04624    }
04625    restart_monitor();
04626    return tmpc;
04627 }
04628 
04629 static int reload_config(void)
04630 {
04631    int on = 1;
04632    struct ast_config *cfg;
04633    struct ast_variable *v;
04634    char *cat;
04635    struct skinny_device *d;
04636    int oldport = ntohs(bindaddr.sin_port);
04637 
04638    if (gethostname(ourhost, sizeof(ourhost))) {
04639       ast_log(LOG_WARNING, "Unable to get hostname, Skinny disabled\n");
04640       return 0;
04641    }
04642    cfg = ast_config_load(config);
04643 
04644    /* We *must* have a config file otherwise stop immediately */
04645    if (!cfg) {
04646       ast_log(LOG_NOTICE, "Unable to load config %s, Skinny disabled\n", config);
04647       return -1;
04648    }
04649    memset(&bindaddr, 0, sizeof(bindaddr));
04650    memset(&default_prefs, 0, sizeof(default_prefs));
04651 
04652    /* Copy the default jb config over global_jbconf */
04653    memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf));
04654 
04655    /* load the general section */
04656    v = ast_variable_browse(cfg, "general");
04657    while (v) {
04658       /* handle jb conf */
04659       if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) {
04660          v = v->next;
04661          continue;
04662       }
04663 
04664       /* Create the interface list */
04665       if (!strcasecmp(v->name, "bindaddr")) {
04666          if (!(hp = ast_gethostbyname(v->value, &ahp))) {
04667             ast_log(LOG_WARNING, "Invalid address: %s\n", v->value);
04668          } else {
04669             memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr));
04670          }
04671       } else if (!strcasecmp(v->name, "keepalive")) {
04672          keep_alive = atoi(v->value);
04673       } else if (!strcasecmp(v->name, "dateformat")) {
04674          memcpy(date_format, v->value, sizeof(date_format));
04675       } else if (!strcasecmp(v->name, "allow")) {
04676          ast_parse_allow_disallow(&default_prefs, &default_capability, v->value, 1);
04677       } else if (!strcasecmp(v->name, "disallow")) {
04678          ast_parse_allow_disallow(&default_prefs, &default_capability, v->value, 0);
04679       } else if (!strcasecmp(v->name, "bindport") || !strcasecmp(v->name, "port")) {
04680          if (sscanf(v->value, "%d", &ourport) == 1) {
04681             bindaddr.sin_port = htons(ourport);
04682          } else {
04683             ast_log(LOG_WARNING, "Invalid bindport '%s' at line %d of %s\n", v->value, v->lineno, config);
04684          }
04685          if (!strcasecmp(v->name, "port")) { /*! \todo Remove 'port' option after 1.4 */
04686             ast_log(LOG_WARNING, "Option 'port' at line %d of %s has been deprecated.  Please use 'bindport' instead.\n", v->lineno, config);
04687          }
04688       }
04689       v = v->next;
04690    }
04691 
04692    if (ntohl(bindaddr.sin_addr.s_addr)) {
04693       __ourip = bindaddr.sin_addr;
04694    } else {
04695       hp = ast_gethostbyname(ourhost, &ahp);
04696       if (!hp) {
04697          ast_log(LOG_WARNING, "Unable to get our IP address, Skinny disabled\n");
04698          ast_config_destroy(cfg);
04699          return 0;
04700       }
04701       memcpy(&__ourip, hp->h_addr, sizeof(__ourip));
04702    }
04703    if (!ntohs(bindaddr.sin_port)) {
04704       bindaddr.sin_port = ntohs(DEFAULT_SKINNY_PORT);
04705    }
04706    bindaddr.sin_family = AF_INET;
04707 
04708    /* load the device sections */
04709    cat = ast_category_browse(cfg, NULL);
04710    while(cat) {
04711       if (!strcasecmp(cat, "general")) {
04712          /* Nothing to do */
04713 #if 0
04714       } else if (!strncasecmp(cat, "paging-", 7)) {
04715          p = build_paging_device(cat, ast_variable_browse(cfg, cat));
04716          if (p) {
04717          }
04718 #endif
04719       } else {
04720          d = build_device(cat, ast_variable_browse(cfg, cat));
04721          if (d) {
04722             if (option_verbose > 2)
04723                ast_verbose(VERBOSE_PREFIX_3 "Added device '%s'\n", d->name);
04724             ast_mutex_lock(&devicelock);
04725             d->next = devices;
04726             devices = d;
04727             ast_mutex_unlock(&devicelock);
04728          }
04729       }
04730       cat = ast_category_browse(cfg, cat);
04731    }
04732    ast_mutex_lock(&netlock);
04733    if ((skinnysock > -1) && (ntohs(bindaddr.sin_port) != oldport)) {
04734       close(skinnysock);
04735       skinnysock = -1;
04736    }
04737    if (skinnysock < 0) {
04738       skinnysock = socket(AF_INET, SOCK_STREAM, 0);
04739       if(setsockopt(skinnysock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) {
04740          ast_log(LOG_ERROR, "Set Socket Options failed: errno %d, %s\n", errno, strerror(errno));
04741          ast_config_destroy(cfg);
04742          return 0;
04743       }
04744       if (skinnysock < 0) {
04745          ast_log(LOG_WARNING, "Unable to create Skinny socket: %s\n", strerror(errno));
04746       } else {
04747          if (bind(skinnysock, (struct sockaddr *)&bindaddr, sizeof(bindaddr)) < 0) {
04748             ast_log(LOG_WARNING, "Failed to bind to %s:%d: %s\n",
04749                   ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port),
04750                      strerror(errno));
04751             close(skinnysock);
04752             skinnysock = -1;
04753             ast_config_destroy(cfg);
04754             return 0;
04755          }
04756          if (listen(skinnysock,DEFAULT_SKINNY_BACKLOG)) {
04757                ast_log(LOG_WARNING, "Failed to start listening to %s:%d: %s\n",
04758                   ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port),
04759                      strerror(errno));
04760                close(skinnysock);
04761                skinnysock = -1;
04762                ast_config_destroy(cfg);
04763                return 0;
04764          }
04765          if (option_verbose > 1)
04766             ast_verbose(VERBOSE_PREFIX_2 "Skinny listening on %s:%d\n",
04767                ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port));
04768          ast_pthread_create_background(&accept_t,NULL, accept_thread, NULL);
04769       }
04770    }
04771    ast_mutex_unlock(&netlock);
04772    ast_config_destroy(cfg);
04773    return 1;
04774 }
04775 
04776 static void delete_devices(void)
04777 {
04778    struct skinny_device *d, *dlast;
04779    struct skinny_line *l, *llast;
04780    struct skinny_speeddial *sd, *sdlast;
04781    struct skinny_addon *a, *alast;
04782 
04783    ast_mutex_lock(&devicelock);
04784 
04785    /* Delete all devices */
04786    for (d=devices;d;) {
04787       /* Delete all lines for this device */
04788       for (l=d->lines;l;) {
04789          llast = l;
04790          l = l->next;
04791          ast_mutex_destroy(&llast->lock);
04792          free(llast);
04793       }
04794       /* Delete all speeddials for this device */
04795       for (sd=d->speeddials;sd;) {
04796          sdlast = sd;
04797          sd = sd->next;
04798          ast_mutex_destroy(&sdlast->lock);
04799          free(sdlast);
04800       }
04801       /* Delete all addons for this device */
04802       for (a=d->addons;a;) {
04803          alast = a;
04804          a = a->next;
04805          ast_mutex_destroy(&alast->lock);
04806          free(alast);
04807       }
04808       dlast = d;
04809       d = d->next;
04810       free(dlast);
04811    }
04812    devices=NULL;
04813    ast_mutex_unlock(&devicelock);
04814 }
04815 
04816 #if 0
04817 /*
04818  * XXX This never worked properly anyways.
04819  * Let's get rid of it, until we can fix it.
04820  */
04821 static int reload(void)
04822 {
04823    delete_devices();
04824    reload_config();
04825    restart_monitor();
04826    return 0;
04827 }
04828 #endif
04829 
04830 static int load_module(void)
04831 {
04832    int res = 0;
04833 
04834    for (; res < (sizeof(soft_key_template_default) / sizeof(soft_key_template_default[0])); res++) {
04835       soft_key_template_default[res].softKeyEvent = htolel(soft_key_template_default[res].softKeyEvent);
04836    }
04837    /* load and parse config */
04838    res = reload_config();
04839    if (res == -1) {
04840       return AST_MODULE_LOAD_DECLINE;
04841    }
04842 
04843    /* Make sure we can register our skinny channel type */
04844    if (ast_channel_register(&skinny_tech)) {
04845       ast_log(LOG_ERROR, "Unable to register channel class 'Skinny'\n");
04846       return -1;
04847    }
04848 
04849    ast_rtp_proto_register(&skinny_rtp);
04850    ast_cli_register_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
04851    sched = sched_context_create();
04852    if (!sched) {
04853       ast_log(LOG_WARNING, "Unable to create schedule context\n");
04854    }
04855    io = io_context_create();
04856    if (!io) {
04857       ast_log(LOG_WARNING, "Unable to create I/O context\n");
04858    }
04859    /* And start the monitor for the first time */
04860    restart_monitor();
04861 
04862    return res;
04863 }
04864 
04865 static int unload_module(void)
04866 {
04867    struct skinnysession *s, *slast;
04868    struct skinny_device *d;
04869    struct skinny_line *l;
04870    struct skinny_subchannel *sub;
04871 
04872    ast_mutex_lock(&sessionlock);
04873    /* Destroy all the interfaces and free their memory */
04874    s = sessions;
04875    while(s) {
04876       slast = s;
04877       s = s->next;
04878       for (d = slast->device; d; d = d->next) {
04879          for (l = d->lines; l; l = l->next) {
04880             ast_mutex_lock(&l->lock);
04881             for (sub = l->sub; sub; sub = sub->next) {
04882                ast_mutex_lock(&sub->lock);
04883                if (sub->owner) {
04884                   sub->alreadygone = 1;
04885                   ast_softhangup(sub->owner, AST_SOFTHANGUP_APPUNLOAD);
04886                }
04887                ast_mutex_unlock(&sub->lock);
04888             }
04889             ast_mutex_unlock(&l->lock);
04890          }
04891       }
04892       if (slast->fd > -1)
04893          close(slast->fd);
04894       ast_mutex_destroy(&slast->lock);
04895       free(slast);
04896    }
04897    sessions = NULL;
04898    ast_mutex_unlock(&sessionlock);
04899 
04900    delete_devices();
04901 
04902    ast_mutex_lock(&monlock);
04903    if ((monitor_thread != AST_PTHREADT_NULL) && (monitor_thread != AST_PTHREADT_STOP)) {
04904       pthread_cancel(monitor_thread);
04905       pthread_kill(monitor_thread, SIGURG);
04906       pthread_join(monitor_thread, NULL);
04907    }
04908    monitor_thread = AST_PTHREADT_STOP;
04909    ast_mutex_unlock(&monlock);
04910 
04911    ast_mutex_lock(&netlock);
04912    if (accept_t && (accept_t != AST_PTHREADT_STOP)) {
04913       pthread_cancel(accept_t);
04914       pthread_kill(accept_t, SIGURG);
04915       pthread_join(accept_t, NULL);
04916    }
04917    accept_t = AST_PTHREADT_STOP;
04918    ast_mutex_unlock(&netlock);
04919 
04920    ast_rtp_proto_unregister(&skinny_rtp);
04921    ast_channel_unregister(&skinny_tech);
04922    ast_cli_unregister_multiple(cli_skinny, sizeof(cli_skinny) / sizeof(struct ast_cli_entry));
04923 
04924    close(skinnysock);
04925    if (sched)
04926       sched_context_destroy(sched);
04927 
04928    return 0;
04929 }
04930 
04931 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Skinny Client Control Protocol (Skinny)",
04932       .load = load_module,
04933       .unload = unload_module,
04934           );

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