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- /*
- * Chan_Misdn -- Channel Driver for Asterisk
- *
- * Interface to mISDN
- *
- * Copyright (C) 2004, Christian Richter
- *
- * Christian Richter <crich@beronet.com>
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License
- */
- /*! \file
- * \brief Interface to mISDN - message parser
- * \author Christian Richter <crich@beronet.com>
- */
- /*** MODULEINFO
- <support_level>extended</support_level>
- ***/
- #include "isdn_lib_intern.h"
- #include "isdn_lib.h"
- #include "ie.c"
- /*!
- * \internal
- * \brief Build the name, number, name/number display message string
- *
- * \param display Display buffer to fill in
- * \param display_length Length of the display buffer to fill in
- * \param display_format Display format enumeration
- * \param name Name string to use
- * \param number Number string to use
- *
- * \return Nothing
- */
- static void build_display_str(char *display, size_t display_length, int display_format, const char *name, const char *number)
- {
- display[0] = 0;
- switch (display_format) {
- default:
- case 0: /* none */
- break;
- case 1: /* name */
- snprintf(display, display_length, "%s", name);
- break;
- case 2: /* number */
- snprintf(display, display_length, "%s", number);
- break;
- case 3: /* both */
- if (name[0] || number[0]) {
- snprintf(display, display_length, "\"%s\" <%s>", name, number);
- }
- break;
- }
- }
- /*!
- * \internal
- * \brief Encode the Facility IE and put it into the message structure.
- *
- * \param ntmode Where the encoded facility was put when in NT mode.
- * \param msg General message structure
- * \param fac Data to encode into the facility ie.
- * \param nt TRUE if in NT mode.
- *
- * \return Nothing
- */
- static void enc_ie_facility(unsigned char **ntmode, msg_t *msg, struct FacParm *fac, int nt)
- {
- int len;
- Q931_info_t *qi;
- unsigned char *p;
- unsigned char buf[256];
- len = encodeFac(buf, fac);
- if (len <= 0) {
- /*
- * mISDN does not know how to build the requested facility structure
- * Clear facility information
- */
- fac->Function = Fac_None;
- return;
- }
- p = msg_put(msg, len);
- if (nt) {
- *ntmode = p + 1;
- } else {
- qi = (Q931_info_t *) (msg->data + mISDN_HEADER_LEN);
- qi->QI_ELEMENT(facility) = p - (unsigned char *) qi - sizeof(Q931_info_t);
- }
- memcpy(p, buf, len);
- /* Clear facility information */
- fac->Function = Fac_None;
- }
- /*!
- * \internal
- * \brief Decode the Facility IE.
- *
- * \param p Encoded facility ie data to decode. (NT mode)
- * \param qi Encoded facility ie data to decode. (TE mode)
- * \param fac Where to put the decoded facility ie data if it is available.
- * \param nt TRUE if in NT mode.
- * \param bc Associated B channel
- *
- * \return Nothing
- */
- static void dec_ie_facility(unsigned char *p, Q931_info_t *qi, struct FacParm *fac, int nt, struct misdn_bchannel *bc)
- {
- fac->Function = Fac_None;
- if (!nt) {
- p = NULL;
- if (qi->QI_ELEMENT(facility)) {
- p = (unsigned char *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(facility) + 1;
- }
- }
- if (!p) {
- return;
- }
- if (decodeFac(p, fac)) {
- cb_log(3, bc->port, "Decoding facility ie failed! Unrecognized facility message?\n");
- }
- }
- static void set_channel(struct misdn_bchannel *bc, int channel)
- {
- cb_log(3,bc->port,"set_channel: bc->channel:%d channel:%d\n", bc->channel, channel);
- if (channel==0xff) {
- /* any channel */
- channel=-1;
- }
- /* ALERT: is that everytime true ? */
- if (channel > 0 && bc->nt ) {
- if (bc->channel && ( bc->channel != 0xff) ) {
- cb_log(0,bc->port,"We already have a channel (%d)\n", bc->channel);
- } else {
- bc->channel = channel;
- cb_event(EVENT_NEW_CHANNEL,bc,NULL);
- }
- }
- if (channel > 0 && !bc->nt ) {
- bc->channel = channel;
- cb_event(EVENT_NEW_CHANNEL,bc,NULL);
- }
- }
- static void parse_proceeding (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- CALL_PROCEEDING_t *proceeding = (CALL_PROCEEDING_t *) (msg->data + HEADER_LEN);
- //struct misdn_stack *stack=get_stack_by_bc(bc);
- {
- int exclusive, channel;
- dec_ie_channel_id(proceeding->CHANNEL_ID, (Q931_info_t *)proceeding, &exclusive, &channel, nt,bc);
- set_channel(bc,channel);
- }
- dec_ie_progress(proceeding->PROGRESS, (Q931_info_t *)proceeding, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
- dec_ie_facility(proceeding->FACILITY, (Q931_info_t *) proceeding, &bc->fac_in, nt, bc);
- /* dec_ie_redir_dn */
- #ifdef DEBUG
- printf("Parsing PROCEEDING Msg\n");
- #endif
- }
- static msg_t *build_proceeding (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- CALL_PROCEEDING_t *proceeding;
- msg_t *msg =(msg_t*)create_l3msg(CC_PROCEEDING | REQUEST, MT_CALL_PROCEEDING, bc?bc->l3_id:-1, sizeof(CALL_PROCEEDING_t) ,nt);
- proceeding=(CALL_PROCEEDING_t*)((msg->data+HEADER_LEN));
- enc_ie_channel_id(&proceeding->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
- if (nt)
- enc_ie_progress(&proceeding->PROGRESS, msg, 0, nt?1:5, 8, nt,bc);
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&proceeding->FACILITY, msg, &bc->fac_out, nt);
- }
- /* enc_ie_redir_dn */
- #ifdef DEBUG
- printf("Building PROCEEDING Msg\n");
- #endif
- return msg;
- }
- static void parse_alerting (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- ALERTING_t *alerting = (ALERTING_t *) (msg->data + HEADER_LEN);
- //Q931_info_t *qi=(Q931_info_t*)(msg->data+HEADER_LEN);
- dec_ie_facility(alerting->FACILITY, (Q931_info_t *) alerting, &bc->fac_in, nt, bc);
- /* dec_ie_redir_dn */
- dec_ie_progress(alerting->PROGRESS, (Q931_info_t *)alerting, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
- #ifdef DEBUG
- printf("Parsing ALERTING Msg\n");
- #endif
- }
- static msg_t *build_alerting (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- ALERTING_t *alerting;
- msg_t *msg =(msg_t*)create_l3msg(CC_ALERTING | REQUEST, MT_ALERTING, bc?bc->l3_id:-1, sizeof(ALERTING_t) ,nt);
- alerting=(ALERTING_t*)((msg->data+HEADER_LEN));
- enc_ie_channel_id(&alerting->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
- if (nt)
- enc_ie_progress(&alerting->PROGRESS, msg, 0, nt?1:5, 8, nt,bc);
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&alerting->FACILITY, msg, &bc->fac_out, nt);
- }
- /* enc_ie_redir_dn */
- #ifdef DEBUG
- printf("Building ALERTING Msg\n");
- #endif
- return msg;
- }
- static void parse_progress (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- PROGRESS_t *progress = (PROGRESS_t *) (msg->data + HEADER_LEN);
- //Q931_info_t *qi=(Q931_info_t*)(msg->data+HEADER_LEN);
- dec_ie_progress(progress->PROGRESS, (Q931_info_t *)progress, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
- dec_ie_facility(progress->FACILITY, (Q931_info_t *) progress, &bc->fac_in, nt, bc);
- #ifdef DEBUG
- printf("Parsing PROGRESS Msg\n");
- #endif
- }
- static msg_t *build_progress (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- PROGRESS_t *progress;
- msg_t *msg =(msg_t*)create_l3msg(CC_PROGRESS | REQUEST, MT_PROGRESS, bc?bc->l3_id:-1, sizeof(PROGRESS_t) ,nt);
- progress=(PROGRESS_t*)((msg->data+HEADER_LEN));
- enc_ie_progress(&progress->PROGRESS, msg, 0, nt ? 1 : 5, 8, nt, bc);
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&progress->FACILITY, msg, &bc->fac_out, nt);
- }
- #ifdef DEBUG
- printf("Building PROGRESS Msg\n");
- #endif
- return msg;
- }
- #if defined(AST_MISDN_ENHANCEMENTS)
- /*!
- * \internal
- * \brief Extract the SETUP message's BC, HLC, and LLC encoded ie contents.
- *
- * \param setup Indexed setup message contents
- * \param nt TRUE if in NT mode.
- * \param bc Associated B channel
- *
- * \return Nothing
- */
- static void extract_setup_Bc_Hlc_Llc(SETUP_t *setup, int nt, struct misdn_bchannel *bc)
- {
- __u8 *p;
- Q931_info_t *qi;
- qi = (Q931_info_t *) setup;
- /* Extract Bearer Capability */
- if (nt) {
- p = (__u8 *) setup->BEARER;
- } else {
- if (qi->QI_ELEMENT(bearer_capability)) {
- p = (__u8 *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(bearer_capability) + 1;
- } else {
- p = NULL;
- }
- }
- if (!p || *p == 0 || sizeof(bc->setup_bc_hlc_llc.Bc.Contents) < *p) {
- bc->setup_bc_hlc_llc.Bc.Length = 0;
- } else {
- bc->setup_bc_hlc_llc.Bc.Length = *p;
- memcpy(bc->setup_bc_hlc_llc.Bc.Contents, p + 1, *p);
- }
- /* Extract Low Layer Compatibility */
- if (nt) {
- p = (__u8 *) setup->LLC;
- } else {
- if (qi->QI_ELEMENT(llc)) {
- p = (__u8 *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(llc) + 1;
- } else {
- p = NULL;
- }
- }
- if (!p || *p == 0 || sizeof(bc->setup_bc_hlc_llc.Llc.Contents) < *p) {
- bc->setup_bc_hlc_llc.Llc.Length = 0;
- } else {
- bc->setup_bc_hlc_llc.Llc.Length = *p;
- memcpy(bc->setup_bc_hlc_llc.Llc.Contents, p + 1, *p);
- }
- /* Extract High Layer Compatibility */
- if (nt) {
- p = (__u8 *) setup->HLC;
- } else {
- if (qi->QI_ELEMENT(hlc)) {
- p = (__u8 *) qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(hlc) + 1;
- } else {
- p = NULL;
- }
- }
- if (!p || *p == 0 || sizeof(bc->setup_bc_hlc_llc.Hlc.Contents) < *p) {
- bc->setup_bc_hlc_llc.Hlc.Length = 0;
- } else {
- bc->setup_bc_hlc_llc.Hlc.Length = *p;
- memcpy(bc->setup_bc_hlc_llc.Hlc.Contents, p + 1, *p);
- }
- }
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- static void parse_setup (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- SETUP_t *setup = (SETUP_t *) (msg->data + HEADER_LEN);
- Q931_info_t *qi = (Q931_info_t *) (msg->data + HEADER_LEN);
- int type;
- int plan;
- int present;
- int screen;
- int reason;
- #ifdef DEBUG
- printf("Parsing SETUP Msg\n");
- #endif
- dec_ie_calling_pn(setup->CALLING_PN, qi, &type, &plan, &present, &screen, bc->caller.number, sizeof(bc->caller.number), nt, bc);
- bc->caller.number_type = type;
- bc->caller.number_plan = plan;
- switch (present) {
- default:
- case 0:
- bc->caller.presentation = 0; /* presentation allowed */
- break;
- case 1:
- bc->caller.presentation = 1; /* presentation restricted */
- break;
- case 2:
- bc->caller.presentation = 2; /* Number not available */
- break;
- }
- if (0 <= screen) {
- bc->caller.screening = screen;
- } else {
- bc->caller.screening = 0; /* Unscreened */
- }
- dec_ie_facility(setup->FACILITY, (Q931_info_t *) setup, &bc->fac_in, nt, bc);
- dec_ie_called_pn(setup->CALLED_PN, (Q931_info_t *) setup, &type, &plan, bc->dialed.number, sizeof(bc->dialed.number), nt, bc);
- bc->dialed.number_type = type;
- bc->dialed.number_plan = plan;
- dec_ie_keypad(setup->KEYPAD, (Q931_info_t *) setup, bc->keypad, sizeof(bc->keypad), nt, bc);
- dec_ie_complete(setup->COMPLETE, (Q931_info_t *) setup, &bc->sending_complete, nt, bc);
- dec_ie_redir_nr(setup->REDIR_NR, (Q931_info_t *) setup, &type, &plan, &present, &screen, &reason, bc->redirecting.from.number, sizeof(bc->redirecting.from.number), nt, bc);
- bc->redirecting.from.number_type = type;
- bc->redirecting.from.number_plan = plan;
- switch (present) {
- default:
- case 0:
- bc->redirecting.from.presentation = 0; /* presentation allowed */
- break;
- case 1:
- bc->redirecting.from.presentation = 1; /* presentation restricted */
- break;
- case 2:
- bc->redirecting.from.presentation = 2; /* Number not available */
- break;
- }
- if (0 <= screen) {
- bc->redirecting.from.screening = screen;
- } else {
- bc->redirecting.from.screening = 0; /* Unscreened */
- }
- if (0 <= reason) {
- bc->redirecting.reason = reason;
- } else {
- bc->redirecting.reason = mISDN_REDIRECTING_REASON_UNKNOWN;
- }
- {
- int coding, capability, mode, rate, multi, user, async, urate, stopbits, dbits, parity;
- dec_ie_bearer(setup->BEARER, (Q931_info_t *)setup, &coding, &capability, &mode, &rate, &multi, &user, &async, &urate, &stopbits, &dbits, &parity, nt,bc);
- switch (capability) {
- case -1: bc->capability=INFO_CAPABILITY_DIGITAL_UNRESTRICTED;
- break;
- case 0: bc->capability=INFO_CAPABILITY_SPEECH;
- break;
- case 18: bc->capability=INFO_CAPABILITY_VIDEO;
- break;
- case 8: bc->capability=INFO_CAPABILITY_DIGITAL_UNRESTRICTED;
- bc->user1 = user;
- bc->urate = urate;
- bc->rate = rate;
- bc->mode = mode;
- break;
- case 9: bc->capability=INFO_CAPABILITY_DIGITAL_RESTRICTED;
- break;
- default:
- break;
- }
- switch(user) {
- case 2:
- bc->law=INFO_CODEC_ULAW;
- break;
- case 3:
- bc->law=INFO_CODEC_ALAW;
- break;
- default:
- bc->law=INFO_CODEC_ALAW;
- }
- bc->capability=capability;
- }
- {
- int exclusive, channel;
- dec_ie_channel_id(setup->CHANNEL_ID, (Q931_info_t *)setup, &exclusive, &channel, nt,bc);
- set_channel(bc,channel);
- }
- {
- int protocol ;
- dec_ie_useruser(setup->USER_USER, (Q931_info_t *)setup, &protocol, bc->uu, &bc->uulen, nt,bc);
- if (bc->uulen) cb_log(1, bc->port, "USERUSERINFO:%s\n", bc->uu);
- else
- cb_log(1, bc->port, "NO USERUSERINFO\n");
- }
- dec_ie_progress(setup->PROGRESS, (Q931_info_t *)setup, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
- #if defined(AST_MISDN_ENHANCEMENTS)
- extract_setup_Bc_Hlc_Llc(setup, nt, bc);
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- }
- #define ANY_CHANNEL 0xff /* IE attribute for 'any channel' */
- static msg_t *build_setup (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- SETUP_t *setup;
- msg_t *msg =(msg_t*)create_l3msg(CC_SETUP | REQUEST, MT_SETUP, bc?bc->l3_id:-1, sizeof(SETUP_t) ,nt);
- int is_ptp;
- enum FacFunction fac_type;
- setup=(SETUP_t*)((msg->data+HEADER_LEN));
- if (bc->channel == 0 || bc->channel == ANY_CHANNEL || bc->channel==-1)
- enc_ie_channel_id(&setup->CHANNEL_ID, msg, 0, bc->channel, nt,bc);
- else
- enc_ie_channel_id(&setup->CHANNEL_ID, msg, 1, bc->channel, nt,bc);
- fac_type = bc->fac_out.Function;
- if (fac_type != Fac_None) {
- enc_ie_facility(&setup->FACILITY, msg, &bc->fac_out, nt);
- }
- enc_ie_calling_pn(&setup->CALLING_PN, msg, bc->caller.number_type, bc->caller.number_plan,
- bc->caller.presentation, bc->caller.screening, bc->caller.number, nt, bc);
- if (bc->dialed.number[0]) {
- enc_ie_called_pn(&setup->CALLED_PN, msg, bc->dialed.number_type, bc->dialed.number_plan, bc->dialed.number, nt, bc);
- }
- switch (bc->outgoing_colp) {
- case 0:/* pass */
- case 1:/* restricted */
- is_ptp = misdn_lib_is_ptp(bc->port);
- if (bc->redirecting.from.number[0]
- && ((!is_ptp && nt)
- || (is_ptp
- #if defined(AST_MISDN_ENHANCEMENTS)
- /*
- * There is no need to send out this ie when we are also sending
- * a Fac_DivertingLegInformation2 as well. The
- * Fac_DivertingLegInformation2 supercedes the information in
- * this ie.
- */
- && fac_type != Fac_DivertingLegInformation2
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- ))) {
- #if 1
- /* ETSI and Q.952 do not define the screening field */
- enc_ie_redir_nr(&setup->REDIR_NR, msg, bc->redirecting.from.number_type,
- bc->redirecting.from.number_plan, bc->redirecting.from.presentation, 0,
- bc->redirecting.reason, bc->redirecting.from.number, nt, bc);
- #else
- /* Q.931 defines the screening field */
- enc_ie_redir_nr(&setup->REDIR_NR, msg, bc->redirecting.from.number_type,
- bc->redirecting.from.number_plan, bc->redirecting.from.presentation,
- bc->redirecting.from.screening, bc->redirecting.reason,
- bc->redirecting.from.number, nt, bc);
- #endif
- }
- break;
- default:
- break;
- }
- if (bc->keypad[0]) {
- enc_ie_keypad(&setup->KEYPAD, msg, bc->keypad, nt,bc);
- }
- if (*bc->display) {
- enc_ie_display(&setup->DISPLAY, msg, bc->display, nt, bc);
- } else if (nt && bc->caller.presentation == 0) {
- char display[sizeof(bc->display)];
- /* Presentation is allowed */
- build_display_str(display, sizeof(display), bc->display_setup, bc->caller.name, bc->caller.number);
- if (display[0]) {
- enc_ie_display(&setup->DISPLAY, msg, display, nt, bc);
- }
- }
- {
- int coding = 0;
- int capability;
- int mode = 0; /* 2 for packet! */
- int user;
- int rate = 0x10;
- switch (bc->law) {
- case INFO_CODEC_ULAW: user=2;
- break;
- case INFO_CODEC_ALAW: user=3;
- break;
- default:
- user=3;
- }
- switch (bc->capability) {
- case INFO_CAPABILITY_SPEECH: capability = 0;
- break;
- case INFO_CAPABILITY_DIGITAL_UNRESTRICTED: capability = 8;
- user=-1;
- mode=bc->mode;
- rate=bc->rate;
- break;
- case INFO_CAPABILITY_DIGITAL_RESTRICTED: capability = 9;
- user=-1;
- break;
- default:
- capability=bc->capability;
- }
- enc_ie_bearer(&setup->BEARER, msg, coding, capability, mode, rate, -1, user, nt,bc);
- }
- if (bc->sending_complete) {
- enc_ie_complete(&setup->COMPLETE,msg, bc->sending_complete, nt, bc);
- }
- if (bc->uulen) {
- int protocol=4;
- enc_ie_useruser(&setup->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
- cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
- }
- #if defined(AST_MISDN_ENHANCEMENTS)
- extract_setup_Bc_Hlc_Llc(setup, nt, bc);
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- #ifdef DEBUG
- printf("Building SETUP Msg\n");
- #endif
- return msg;
- }
- static void parse_connect (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- CONNECT_t *connect = (CONNECT_t *) (msg->data + HEADER_LEN);
- int type;
- int plan;
- int pres;
- int screen;
- bc->ces = connect->ces;
- dec_ie_progress(connect->PROGRESS, (Q931_info_t *)connect, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
- dec_ie_connected_pn(connect->CONNECT_PN, (Q931_info_t *) connect, &type, &plan,
- &pres, &screen, bc->connected.number, sizeof(bc->connected.number), nt, bc);
- bc->connected.number_type = type;
- bc->connected.number_plan = plan;
- switch (pres) {
- default:
- case 0:
- bc->connected.presentation = 0; /* presentation allowed */
- break;
- case 1:
- bc->connected.presentation = 1; /* presentation restricted */
- break;
- case 2:
- bc->connected.presentation = 2; /* Number not available */
- break;
- }
- if (0 <= screen) {
- bc->connected.screening = screen;
- } else {
- bc->connected.screening = 0; /* Unscreened */
- }
- dec_ie_facility(connect->FACILITY, (Q931_info_t *) connect, &bc->fac_in, nt, bc);
- /*
- cb_log(1,bc->port,"CONNETED PN: %s cpn_dialplan:%d\n", connected_pn, type);
- */
- #ifdef DEBUG
- printf("Parsing CONNECT Msg\n");
- #endif
- }
- static msg_t *build_connect (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- CONNECT_t *connect;
- msg_t *msg =(msg_t*)create_l3msg(CC_CONNECT | REQUEST, MT_CONNECT, bc?bc->l3_id:-1, sizeof(CONNECT_t) ,nt);
- cb_log(6,bc->port,"BUILD_CONNECT: bc:%p bc->l3id:%d, nt:%d\n",bc,bc->l3_id,nt);
- connect=(CONNECT_t*)((msg->data+HEADER_LEN));
- if (nt) {
- time_t now;
- time(&now);
- enc_ie_date(&connect->DATE, msg, now, nt,bc);
- }
- switch (bc->outgoing_colp) {
- case 0:/* pass */
- case 1:/* restricted */
- enc_ie_connected_pn(&connect->CONNECT_PN, msg, bc->connected.number_type,
- bc->connected.number_plan, bc->connected.presentation,
- bc->connected.screening, bc->connected.number, nt, bc);
- break;
- default:
- break;
- }
- if (nt && bc->connected.presentation == 0) {
- char display[sizeof(bc->display)];
- /* Presentation is allowed */
- build_display_str(display, sizeof(display), bc->display_connected, bc->connected.name, bc->connected.number);
- if (display[0]) {
- enc_ie_display(&connect->DISPLAY, msg, display, nt, bc);
- }
- }
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&connect->FACILITY, msg, &bc->fac_out, nt);
- }
- #ifdef DEBUG
- printf("Building CONNECT Msg\n");
- #endif
- return msg;
- }
- static void parse_setup_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- SETUP_ACKNOWLEDGE_t *setup_acknowledge = (SETUP_ACKNOWLEDGE_t *) (msg->data + HEADER_LEN);
- {
- int exclusive, channel;
- dec_ie_channel_id(setup_acknowledge->CHANNEL_ID, (Q931_info_t *)setup_acknowledge, &exclusive, &channel, nt,bc);
- set_channel(bc, channel);
- }
- dec_ie_progress(setup_acknowledge->PROGRESS, (Q931_info_t *)setup_acknowledge, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
- dec_ie_facility(setup_acknowledge->FACILITY, (Q931_info_t *) setup_acknowledge, &bc->fac_in, nt, bc);
- #ifdef DEBUG
- printf("Parsing SETUP_ACKNOWLEDGE Msg\n");
- #endif
- }
- static msg_t *build_setup_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- SETUP_ACKNOWLEDGE_t *setup_acknowledge;
- msg_t *msg =(msg_t*)create_l3msg(CC_SETUP_ACKNOWLEDGE | REQUEST, MT_SETUP_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(SETUP_ACKNOWLEDGE_t) ,nt);
- setup_acknowledge=(SETUP_ACKNOWLEDGE_t*)((msg->data+HEADER_LEN));
- enc_ie_channel_id(&setup_acknowledge->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
- if (nt)
- enc_ie_progress(&setup_acknowledge->PROGRESS, msg, 0, nt?1:5, 8, nt,bc);
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&setup_acknowledge->FACILITY, msg, &bc->fac_out, nt);
- }
- #ifdef DEBUG
- printf("Building SETUP_ACKNOWLEDGE Msg\n");
- #endif
- return msg;
- }
- static void parse_connect_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing CONNECT_ACKNOWLEDGE Msg\n");
- #endif
- }
- static msg_t *build_connect_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- CONNECT_ACKNOWLEDGE_t *connect_acknowledge;
- msg_t *msg =(msg_t*)create_l3msg(CC_CONNECT | RESPONSE, MT_CONNECT, bc?bc->l3_id:-1, sizeof(CONNECT_ACKNOWLEDGE_t) ,nt);
- connect_acknowledge=(CONNECT_ACKNOWLEDGE_t*)((msg->data+HEADER_LEN));
- enc_ie_channel_id(&connect_acknowledge->CHANNEL_ID, msg, 1, bc->channel, nt,bc);
- #ifdef DEBUG
- printf("Building CONNECT_ACKNOWLEDGE Msg\n");
- #endif
- return msg;
- }
- static void parse_user_information (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing USER_INFORMATION Msg\n");
- #endif
- }
- static msg_t *build_user_information (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_USER_INFORMATION | REQUEST, MT_USER_INFORMATION, bc?bc->l3_id:-1, sizeof(USER_INFORMATION_t) ,nt);
- #ifdef DEBUG
- printf("Building USER_INFORMATION Msg\n");
- #endif
- return msg;
- }
- static void parse_suspend_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing SUSPEND_REJECT Msg\n");
- #endif
- }
- static msg_t *build_suspend_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_SUSPEND_REJECT | REQUEST, MT_SUSPEND_REJECT, bc?bc->l3_id:-1, sizeof(SUSPEND_REJECT_t) ,nt);
- #ifdef DEBUG
- printf("Building SUSPEND_REJECT Msg\n");
- #endif
- return msg;
- }
- static void parse_resume_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing RESUME_REJECT Msg\n");
- #endif
- }
- static msg_t *build_resume_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_RESUME_REJECT | REQUEST, MT_RESUME_REJECT, bc?bc->l3_id:-1, sizeof(RESUME_REJECT_t) ,nt);
- #ifdef DEBUG
- printf("Building RESUME_REJECT Msg\n");
- #endif
- return msg;
- }
- static void parse_hold (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing HOLD Msg\n");
- #endif
- }
- static msg_t *build_hold (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_HOLD | REQUEST, MT_HOLD, bc?bc->l3_id:-1, sizeof(HOLD_t) ,nt);
- #ifdef DEBUG
- printf("Building HOLD Msg\n");
- #endif
- return msg;
- }
- static void parse_suspend (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing SUSPEND Msg\n");
- #endif
- }
- static msg_t *build_suspend (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_SUSPEND | REQUEST, MT_SUSPEND, bc?bc->l3_id:-1, sizeof(SUSPEND_t) ,nt);
- #ifdef DEBUG
- printf("Building SUSPEND Msg\n");
- #endif
- return msg;
- }
- static void parse_resume (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing RESUME Msg\n");
- #endif
- }
- static msg_t *build_resume (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_RESUME | REQUEST, MT_RESUME, bc?bc->l3_id:-1, sizeof(RESUME_t) ,nt);
- #ifdef DEBUG
- printf("Building RESUME Msg\n");
- #endif
- return msg;
- }
- static void parse_hold_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing HOLD_ACKNOWLEDGE Msg\n");
- #endif
- }
- static msg_t *build_hold_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_HOLD_ACKNOWLEDGE | REQUEST, MT_HOLD_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(HOLD_ACKNOWLEDGE_t) ,nt);
- #ifdef DEBUG
- printf("Building HOLD_ACKNOWLEDGE Msg\n");
- #endif
- return msg;
- }
- static void parse_suspend_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing SUSPEND_ACKNOWLEDGE Msg\n");
- #endif
- }
- static msg_t *build_suspend_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_SUSPEND_ACKNOWLEDGE | REQUEST, MT_SUSPEND_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(SUSPEND_ACKNOWLEDGE_t) ,nt);
- #ifdef DEBUG
- printf("Building SUSPEND_ACKNOWLEDGE Msg\n");
- #endif
- return msg;
- }
- static void parse_resume_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing RESUME_ACKNOWLEDGE Msg\n");
- #endif
- }
- static msg_t *build_resume_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_RESUME_ACKNOWLEDGE | REQUEST, MT_RESUME_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(RESUME_ACKNOWLEDGE_t) ,nt);
- #ifdef DEBUG
- printf("Building RESUME_ACKNOWLEDGE Msg\n");
- #endif
- return msg;
- }
- static void parse_hold_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing HOLD_REJECT Msg\n");
- #endif
- }
- static msg_t *build_hold_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_HOLD_REJECT | REQUEST, MT_HOLD_REJECT, bc?bc->l3_id:-1, sizeof(HOLD_REJECT_t) ,nt);
- #ifdef DEBUG
- printf("Building HOLD_REJECT Msg\n");
- #endif
- return msg;
- }
- static void parse_retrieve (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing RETRIEVE Msg\n");
- #endif
- }
- static msg_t *build_retrieve (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_RETRIEVE | REQUEST, MT_RETRIEVE, bc?bc->l3_id:-1, sizeof(RETRIEVE_t) ,nt);
- #ifdef DEBUG
- printf("Building RETRIEVE Msg\n");
- #endif
- return msg;
- }
- static void parse_retrieve_acknowledge (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing RETRIEVE_ACKNOWLEDGE Msg\n");
- #endif
- }
- static msg_t *build_retrieve_acknowledge (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- RETRIEVE_ACKNOWLEDGE_t *retrieve_acknowledge;
- msg_t *msg =(msg_t*)create_l3msg(CC_RETRIEVE_ACKNOWLEDGE | REQUEST, MT_RETRIEVE_ACKNOWLEDGE, bc?bc->l3_id:-1, sizeof(RETRIEVE_ACKNOWLEDGE_t) ,nt);
- retrieve_acknowledge=(RETRIEVE_ACKNOWLEDGE_t*)((msg->data+HEADER_LEN));
- enc_ie_channel_id(&retrieve_acknowledge->CHANNEL_ID, msg, 1, bc->channel, nt,bc);
- #ifdef DEBUG
- printf("Building RETRIEVE_ACKNOWLEDGE Msg\n");
- #endif
- return msg;
- }
- static void parse_retrieve_reject (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing RETRIEVE_REJECT Msg\n");
- #endif
- }
- static msg_t *build_retrieve_reject (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_RETRIEVE_REJECT | REQUEST, MT_RETRIEVE_REJECT, bc?bc->l3_id:-1, sizeof(RETRIEVE_REJECT_t) ,nt);
- #ifdef DEBUG
- printf("Building RETRIEVE_REJECT Msg\n");
- #endif
- return msg;
- }
- static void parse_disconnect (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- DISCONNECT_t *disconnect = (DISCONNECT_t *) (msg->data + HEADER_LEN);
- int location;
- int cause;
- dec_ie_cause(disconnect->CAUSE, (Q931_info_t *)(disconnect), &location, &cause, nt,bc);
- if (cause>0) bc->cause=cause;
- dec_ie_facility(disconnect->FACILITY, (Q931_info_t *) disconnect, &bc->fac_in, nt, bc);
- dec_ie_progress(disconnect->PROGRESS, (Q931_info_t *)disconnect, &bc->progress_coding, &bc->progress_location, &bc->progress_indicator, nt, bc);
- #ifdef DEBUG
- printf("Parsing DISCONNECT Msg\n");
- #endif
- }
- static msg_t *build_disconnect (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- DISCONNECT_t *disconnect;
- msg_t *msg =(msg_t*)create_l3msg(CC_DISCONNECT | REQUEST, MT_DISCONNECT, bc?bc->l3_id:-1, sizeof(DISCONNECT_t) ,nt);
- disconnect=(DISCONNECT_t*)((msg->data+HEADER_LEN));
- enc_ie_cause(&disconnect->CAUSE, msg, (nt)?1:0, bc->out_cause,nt,bc);
- if (nt) {
- enc_ie_progress(&disconnect->PROGRESS, msg, 0, nt ? 1 : 5, 8, nt, bc);
- }
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&disconnect->FACILITY, msg, &bc->fac_out, nt);
- }
- if (bc->uulen) {
- int protocol=4;
- enc_ie_useruser(&disconnect->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
- cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
- }
- #ifdef DEBUG
- printf("Building DISCONNECT Msg\n");
- #endif
- return msg;
- }
- static void parse_restart (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- RESTART_t *restart = (RESTART_t *) (msg->data + HEADER_LEN);
- struct misdn_stack *stack=get_stack_by_bc(bc);
- #ifdef DEBUG
- printf("Parsing RESTART Msg\n");
- #endif
- {
- int exclusive;
- dec_ie_channel_id(restart->CHANNEL_ID, (Q931_info_t *)restart, &exclusive, &bc->restart_channel, nt,bc);
- cb_log(3, stack->port, "CC_RESTART Request on channel:%d on this port.\n", bc->restart_channel);
- }
- }
- static msg_t *build_restart (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- RESTART_t *restart;
- msg_t *msg =(msg_t*)create_l3msg(CC_RESTART | REQUEST, MT_RESTART, bc?bc->l3_id:-1, sizeof(RESTART_t) ,nt);
- restart=(RESTART_t*)((msg->data+HEADER_LEN));
- #ifdef DEBUG
- printf("Building RESTART Msg\n");
- #endif
- if (bc->channel > 0) {
- enc_ie_channel_id(&restart->CHANNEL_ID, msg, 1,bc->channel, nt,bc);
- enc_ie_restart_ind(&restart->RESTART_IND, msg, 0x80, nt, bc);
- } else {
- enc_ie_restart_ind(&restart->RESTART_IND, msg, 0x87, nt, bc);
- }
- cb_log(0,bc->port, "Restarting channel %d\n", bc->channel);
- return msg;
- }
- static void parse_release (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- RELEASE_t *release = (RELEASE_t *) (msg->data + HEADER_LEN);
- int location;
- int cause;
- dec_ie_cause(release->CAUSE, (Q931_info_t *)(release), &location, &cause, nt,bc);
- if (cause>0) bc->cause=cause;
- dec_ie_facility(release->FACILITY, (Q931_info_t *) release, &bc->fac_in, nt, bc);
- #ifdef DEBUG
- printf("Parsing RELEASE Msg\n");
- #endif
- }
- static msg_t *build_release (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- RELEASE_t *release;
- msg_t *msg =(msg_t*)create_l3msg(CC_RELEASE | REQUEST, MT_RELEASE, bc?bc->l3_id:-1, sizeof(RELEASE_t) ,nt);
- release=(RELEASE_t*)((msg->data+HEADER_LEN));
- if (bc->out_cause>= 0)
- enc_ie_cause(&release->CAUSE, msg, nt?1:0, bc->out_cause, nt,bc);
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&release->FACILITY, msg, &bc->fac_out, nt);
- }
- if (bc->uulen) {
- int protocol=4;
- enc_ie_useruser(&release->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
- cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
- }
- #ifdef DEBUG
- printf("Building RELEASE Msg\n");
- #endif
- return msg;
- }
- static void parse_release_complete (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- RELEASE_COMPLETE_t *release_complete = (RELEASE_COMPLETE_t *) (msg->data + HEADER_LEN);
- int location;
- int cause;
- iframe_t *frm = (iframe_t*) msg->data;
- struct misdn_stack *stack=get_stack_by_bc(bc);
- mISDNuser_head_t *hh;
- hh=(mISDNuser_head_t*)msg->data;
- /*hh=(mISDN_head_t*)msg->data;
- mISDN_head_t *hh;*/
- if (nt) {
- if (hh->prim == (CC_RELEASE_COMPLETE|CONFIRM)) {
- cb_log(0, stack->port, "CC_RELEASE_COMPLETE|CONFIRM [NT] \n");
- return;
- }
- } else {
- if (frm->prim == (CC_RELEASE_COMPLETE|CONFIRM)) {
- cb_log(0, stack->port, "CC_RELEASE_COMPLETE|CONFIRM [TE] \n");
- return;
- }
- }
- dec_ie_cause(release_complete->CAUSE, (Q931_info_t *)(release_complete), &location, &cause, nt,bc);
- if (cause>0) bc->cause=cause;
- dec_ie_facility(release_complete->FACILITY, (Q931_info_t *) release_complete, &bc->fac_in, nt, bc);
- #ifdef DEBUG
- printf("Parsing RELEASE_COMPLETE Msg\n");
- #endif
- }
- static msg_t *build_release_complete (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- RELEASE_COMPLETE_t *release_complete;
- msg_t *msg =(msg_t*)create_l3msg(CC_RELEASE_COMPLETE | REQUEST, MT_RELEASE_COMPLETE, bc?bc->l3_id:-1, sizeof(RELEASE_COMPLETE_t) ,nt);
- release_complete=(RELEASE_COMPLETE_t*)((msg->data+HEADER_LEN));
- enc_ie_cause(&release_complete->CAUSE, msg, nt?1:0, bc->out_cause, nt,bc);
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(&release_complete->FACILITY, msg, &bc->fac_out, nt);
- }
- if (bc->uulen) {
- int protocol=4;
- enc_ie_useruser(&release_complete->USER_USER, msg, protocol, bc->uu, bc->uulen, nt,bc);
- cb_log(1, bc->port, "ENCODING USERUSERINFO:%s\n", bc->uu);
- }
- #ifdef DEBUG
- printf("Building RELEASE_COMPLETE Msg\n");
- #endif
- return msg;
- }
- static void parse_facility (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
- FACILITY_t *facility = (FACILITY_t*)(msg->data+HEADER_LEN);
- Q931_info_t *qi = (Q931_info_t*)(msg->data+HEADER_LEN);
- unsigned char *p = NULL;
- #if defined(AST_MISDN_ENHANCEMENTS)
- int description_code;
- int type;
- int plan;
- int present;
- char number[sizeof(bc->redirecting.to.number)];
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- #ifdef DEBUG
- printf("Parsing FACILITY Msg\n");
- #endif
- bc->fac_in.Function = Fac_None;
- if (!bc->nt) {
- if (qi->QI_ELEMENT(facility))
- p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(facility) + 1;
- } else {
- p = facility->FACILITY;
- }
- if (!p)
- return;
- if (decodeFac(p, &bc->fac_in)) {
- cb_log(3, bc->port, "Decoding facility ie failed! Unrecognized facility message?\n");
- }
- #if defined(AST_MISDN_ENHANCEMENTS)
- dec_ie_notify(facility->NOTIFY, qi, &description_code, nt, bc);
- if (description_code < 0) {
- bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
- } else {
- bc->notify_description_code = description_code;
- }
- dec_ie_redir_dn(facility->REDIR_DN, qi, &type, &plan, &present, number, sizeof(number), nt, bc);
- if (0 <= type) {
- bc->redirecting.to_changed = 1;
- bc->redirecting.to.number_type = type;
- bc->redirecting.to.number_plan = plan;
- switch (present) {
- default:
- case 0:
- bc->redirecting.to.presentation = 0; /* presentation allowed */
- break;
- case 1:
- bc->redirecting.to.presentation = 1; /* presentation restricted */
- break;
- case 2:
- bc->redirecting.to.presentation = 2; /* Number not available */
- break;
- }
- bc->redirecting.to.screening = 0; /* Unscreened */
- strcpy(bc->redirecting.to.number, number);
- }
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- }
- static msg_t *build_facility (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int len;
- int HEADER_LEN;
- unsigned char *ie_fac;
- unsigned char fac_tmp[256];
- msg_t *msg;
- FACILITY_t *facility;
- Q931_info_t *qi;
- #ifdef DEBUG
- printf("Building FACILITY Msg\n");
- #endif
- len = encodeFac(fac_tmp, &(bc->fac_out));
- if (len <= 0) {
- /*
- * mISDN does not know how to build the requested facility structure
- * Clear facility information
- */
- bc->fac_out.Function = Fac_None;
- #if defined(AST_MISDN_ENHANCEMENTS)
- /* Clear other one shot information. */
- bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
- bc->redirecting.to_changed = 0;
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- return NULL;
- }
- msg = (msg_t *) create_l3msg(CC_FACILITY | REQUEST, MT_FACILITY, bc ? bc->l3_id : -1, sizeof(FACILITY_t), nt);
- HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
- facility = (FACILITY_t *) (msg->data + HEADER_LEN);
- ie_fac = msg_put(msg, len);
- if (bc->nt) {
- facility->FACILITY = ie_fac + 1;
- } else {
- qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
- qi->QI_ELEMENT(facility) = ie_fac - (unsigned char *)qi - sizeof(Q931_info_t);
- }
- memcpy(ie_fac, fac_tmp, len);
- /* Clear facility information */
- bc->fac_out.Function = Fac_None;
- if (*bc->display) {
- #ifdef DEBUG
- printf("Sending %s as Display\n", bc->display);
- #endif
- enc_ie_display(&facility->DISPLAY, msg, bc->display, nt,bc);
- }
- #if defined(AST_MISDN_ENHANCEMENTS)
- if (bc->notify_description_code != mISDN_NOTIFY_CODE_INVALID) {
- enc_ie_notify(&facility->NOTIFY, msg, bc->notify_description_code, nt, bc);
- bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
- }
- if (bc->redirecting.to_changed) {
- bc->redirecting.to_changed = 0;
- switch (bc->outgoing_colp) {
- case 0:/* pass */
- case 1:/* restricted */
- enc_ie_redir_dn(&facility->REDIR_DN, msg, bc->redirecting.to.number_type,
- bc->redirecting.to.number_plan, bc->redirecting.to.presentation,
- bc->redirecting.to.number, nt, bc);
- break;
- default:
- break;
- }
- }
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- return msg;
- }
- #if defined(AST_MISDN_ENHANCEMENTS)
- /*!
- * \internal
- * \brief Parse a received REGISTER message
- *
- * \param msgs Search table entry that called us.
- * \param msg Received message contents
- * \param bc Associated B channel
- * \param nt TRUE if in NT mode.
- *
- * \return Nothing
- */
- static void parse_register(struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN;
- REGISTER_t *reg;
- HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
- reg = (REGISTER_t *) (msg->data + HEADER_LEN);
- /*
- * A facility ie is optional.
- * The peer may just be establishing a connection to send
- * messages later.
- */
- dec_ie_facility(reg->FACILITY, (Q931_info_t *) reg, &bc->fac_in, nt, bc);
- }
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- #if defined(AST_MISDN_ENHANCEMENTS)
- /*!
- * \internal
- * \brief Construct a REGISTER message
- *
- * \param msgs Search table entry that called us.
- * \param bc Associated B channel
- * \param nt TRUE if in NT mode.
- *
- * \return Allocated built message
- */
- static msg_t *build_register(struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN;
- REGISTER_t *reg;
- msg_t *msg;
- msg = (msg_t *) create_l3msg(CC_REGISTER | REQUEST, MT_REGISTER, bc ? bc->l3_id : -1, sizeof(REGISTER_t), nt);
- HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
- reg = (REGISTER_t *) (msg->data + HEADER_LEN);
- if (bc->fac_out.Function != Fac_None) {
- enc_ie_facility(®->FACILITY, msg, &bc->fac_out, nt);
- }
- return msg;
- }
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- static void parse_notify (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt ? mISDNUSER_HEAD_SIZE : mISDN_HEADER_LEN;
- NOTIFY_t *notify = (NOTIFY_t *) (msg->data + HEADER_LEN);
- int description_code;
- int type;
- int plan;
- int present;
- char number[sizeof(bc->redirecting.to.number)];
- #ifdef DEBUG
- printf("Parsing NOTIFY Msg\n");
- #endif
- dec_ie_notify(notify->NOTIFY, (Q931_info_t *) notify, &description_code, nt, bc);
- if (description_code < 0) {
- bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
- } else {
- bc->notify_description_code = description_code;
- }
- dec_ie_redir_dn(notify->REDIR_DN, (Q931_info_t *) notify, &type, &plan, &present, number, sizeof(number), nt, bc);
- if (0 <= type) {
- bc->redirecting.to_changed = 1;
- bc->redirecting.to.number_type = type;
- bc->redirecting.to.number_plan = plan;
- switch (present) {
- default:
- case 0:
- bc->redirecting.to.presentation = 0; /* presentation allowed */
- break;
- case 1:
- bc->redirecting.to.presentation = 1; /* presentation restricted */
- break;
- case 2:
- bc->redirecting.to.presentation = 2; /* Number not available */
- break;
- }
- bc->redirecting.to.screening = 0; /* Unscreened */
- strcpy(bc->redirecting.to.number, number);
- }
- }
- static msg_t *build_notify (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- NOTIFY_t *notify;
- msg_t *msg =(msg_t*)create_l3msg(CC_NOTIFY | REQUEST, MT_NOTIFY, bc?bc->l3_id:-1, sizeof(NOTIFY_t) ,nt);
- #ifdef DEBUG
- printf("Building NOTIFY Msg\n");
- #endif
- notify = (NOTIFY_t *) (msg->data + HEADER_LEN);
- enc_ie_notify(¬ify->NOTIFY, msg, bc->notify_description_code, nt, bc);
- bc->notify_description_code = mISDN_NOTIFY_CODE_INVALID;
- if (bc->redirecting.to_changed) {
- bc->redirecting.to_changed = 0;
- switch (bc->outgoing_colp) {
- case 0:/* pass */
- case 1:/* restricted */
- enc_ie_redir_dn(¬ify->REDIR_DN, msg, bc->redirecting.to.number_type,
- bc->redirecting.to.number_plan, bc->redirecting.to.presentation,
- bc->redirecting.to.number, nt, bc);
- break;
- default:
- break;
- }
- }
- return msg;
- }
- static void parse_status_enquiry (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing STATUS_ENQUIRY Msg\n");
- #endif
- }
- static msg_t *build_status_enquiry (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_STATUS_ENQUIRY | REQUEST, MT_STATUS_ENQUIRY, bc?bc->l3_id:-1, sizeof(STATUS_ENQUIRY_t) ,nt);
- #ifdef DEBUG
- printf("Building STATUS_ENQUIRY Msg\n");
- #endif
- return msg;
- }
- static void parse_information (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- INFORMATION_t *information = (INFORMATION_t *) (msg->data + HEADER_LEN);
- int type, plan;
- dec_ie_called_pn(information->CALLED_PN, (Q931_info_t *) information, &type, &plan, bc->info_dad, sizeof(bc->info_dad), nt, bc);
- dec_ie_keypad(information->KEYPAD, (Q931_info_t *) information, bc->keypad, sizeof(bc->keypad), nt, bc);
- #ifdef DEBUG
- printf("Parsing INFORMATION Msg\n");
- #endif
- }
- static msg_t *build_information (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- INFORMATION_t *information;
- msg_t *msg =(msg_t*)create_l3msg(CC_INFORMATION | REQUEST, MT_INFORMATION, bc?bc->l3_id:-1, sizeof(INFORMATION_t) ,nt);
- information=(INFORMATION_t*)((msg->data+HEADER_LEN));
- enc_ie_called_pn(&information->CALLED_PN, msg, 0, 1, bc->info_dad, nt,bc);
- {
- if (*bc->display) {
- #ifdef DEBUG
- printf("Sending %s as Display\n", bc->display);
- #endif
- enc_ie_display(&information->DISPLAY, msg, bc->display, nt,bc);
- }
- }
- #ifdef DEBUG
- printf("Building INFORMATION Msg\n");
- #endif
- return msg;
- }
- static void parse_status (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int HEADER_LEN = nt?mISDNUSER_HEAD_SIZE:mISDN_HEADER_LEN;
- STATUS_t *status = (STATUS_t *) (msg->data + HEADER_LEN);
- int location;
- int cause;
- dec_ie_cause(status->CAUSE, (Q931_info_t *)(status), &location, &cause, nt,bc);
- if (cause>0) bc->cause=cause;
- #ifdef DEBUG
- printf("Parsing STATUS Msg\n");
- #endif
- }
- static msg_t *build_status (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_STATUS | REQUEST, MT_STATUS, bc?bc->l3_id:-1, sizeof(STATUS_t) ,nt);
- #ifdef DEBUG
- printf("Building STATUS Msg\n");
- #endif
- return msg;
- }
- static void parse_timeout (struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- #ifdef DEBUG
- printf("Parsing STATUS Msg\n");
- #endif
- }
- static msg_t *build_timeout (struct isdn_msg msgs[], struct misdn_bchannel *bc, int nt)
- {
- msg_t *msg =(msg_t*)create_l3msg(CC_STATUS | REQUEST, MT_STATUS, bc?bc->l3_id:-1, sizeof(STATUS_t) ,nt);
- #ifdef DEBUG
- printf("Building STATUS Msg\n");
- #endif
- return msg;
- }
- /************************************/
- /** Msg Array **/
- struct isdn_msg msgs_g[] = {
- /* *INDENT-OFF* */
- /* misdn_msg, event, msg_parser, msg_builder, info */
- { CC_PROCEEDING, EVENT_PROCEEDING, parse_proceeding, build_proceeding, "PROCEEDING" },
- { CC_ALERTING, EVENT_ALERTING, parse_alerting, build_alerting, "ALERTING" },
- { CC_PROGRESS, EVENT_PROGRESS, parse_progress, build_progress, "PROGRESS" },
- { CC_SETUP, EVENT_SETUP, parse_setup, build_setup, "SETUP" },
- #if defined(AST_MISDN_ENHANCEMENTS)
- { CC_REGISTER, EVENT_REGISTER, parse_register, build_register, "REGISTER" },
- #endif /* defined(AST_MISDN_ENHANCEMENTS) */
- { CC_CONNECT, EVENT_CONNECT, parse_connect, build_connect, "CONNECT" },
- { CC_SETUP_ACKNOWLEDGE, EVENT_SETUP_ACKNOWLEDGE, parse_setup_acknowledge, build_setup_acknowledge, "SETUP_ACKNOWLEDGE" },
- { CC_CONNECT_ACKNOWLEDGE, EVENT_CONNECT_ACKNOWLEDGE, parse_connect_acknowledge, build_connect_acknowledge, "CONNECT_ACKNOWLEDGE " },
- { CC_USER_INFORMATION, EVENT_USER_INFORMATION, parse_user_information, build_user_information, "USER_INFORMATION" },
- { CC_SUSPEND_REJECT, EVENT_SUSPEND_REJECT, parse_suspend_reject, build_suspend_reject, "SUSPEND_REJECT" },
- { CC_RESUME_REJECT, EVENT_RESUME_REJECT, parse_resume_reject, build_resume_reject, "RESUME_REJECT" },
- { CC_HOLD, EVENT_HOLD, parse_hold, build_hold, "HOLD" },
- { CC_SUSPEND, EVENT_SUSPEND, parse_suspend, build_suspend, "SUSPEND" },
- { CC_RESUME, EVENT_RESUME, parse_resume, build_resume, "RESUME" },
- { CC_HOLD_ACKNOWLEDGE, EVENT_HOLD_ACKNOWLEDGE, parse_hold_acknowledge, build_hold_acknowledge, "HOLD_ACKNOWLEDGE" },
- { CC_SUSPEND_ACKNOWLEDGE, EVENT_SUSPEND_ACKNOWLEDGE, parse_suspend_acknowledge, build_suspend_acknowledge, "SUSPEND_ACKNOWLEDGE" },
- { CC_RESUME_ACKNOWLEDGE, EVENT_RESUME_ACKNOWLEDGE, parse_resume_acknowledge, build_resume_acknowledge, "RESUME_ACKNOWLEDGE" },
- { CC_HOLD_REJECT, EVENT_HOLD_REJECT, parse_hold_reject, build_hold_reject, "HOLD_REJECT" },
- { CC_RETRIEVE, EVENT_RETRIEVE, parse_retrieve, build_retrieve, "RETRIEVE" },
- { CC_RETRIEVE_ACKNOWLEDGE, EVENT_RETRIEVE_ACKNOWLEDGE, parse_retrieve_acknowledge, build_retrieve_acknowledge, "RETRIEVE_ACKNOWLEDGE" },
- { CC_RETRIEVE_REJECT, EVENT_RETRIEVE_REJECT, parse_retrieve_reject, build_retrieve_reject, "RETRIEVE_REJECT" },
- { CC_DISCONNECT, EVENT_DISCONNECT, parse_disconnect, build_disconnect, "DISCONNECT" },
- { CC_RESTART, EVENT_RESTART, parse_restart, build_restart, "RESTART" },
- { CC_RELEASE, EVENT_RELEASE, parse_release, build_release, "RELEASE" },
- { CC_RELEASE_COMPLETE, EVENT_RELEASE_COMPLETE, parse_release_complete, build_release_complete, "RELEASE_COMPLETE" },
- { CC_FACILITY, EVENT_FACILITY, parse_facility, build_facility, "FACILITY" },
- { CC_NOTIFY, EVENT_NOTIFY, parse_notify, build_notify, "NOTIFY" },
- { CC_STATUS_ENQUIRY, EVENT_STATUS_ENQUIRY, parse_status_enquiry, build_status_enquiry, "STATUS_ENQUIRY" },
- { CC_INFORMATION, EVENT_INFORMATION, parse_information, build_information, "INFORMATION" },
- { CC_STATUS, EVENT_STATUS, parse_status, build_status, "STATUS" },
- { CC_TIMEOUT, EVENT_TIMEOUT, parse_timeout, build_timeout, "TIMEOUT" },
- { 0, 0, NULL, NULL, NULL }
- /* *INDENT-ON* */
- };
- #define msgs_max (sizeof(msgs_g)/sizeof(struct isdn_msg))
- /** INTERFACE FCTS ***/
- int isdn_msg_get_index(struct isdn_msg msgs[], msg_t *msg, int nt)
- {
- int i;
- if (nt){
- mISDNuser_head_t *hh = (mISDNuser_head_t*)msg->data;
- for (i=0; i< msgs_max -1; i++) {
- if ( (hh->prim&COMMAND_MASK)==(msgs[i].misdn_msg&COMMAND_MASK)) return i;
- }
- } else {
- iframe_t *frm = (iframe_t*)msg->data;
- for (i=0; i< msgs_max -1; i++)
- if ( (frm->prim&COMMAND_MASK)==(msgs[i].misdn_msg&COMMAND_MASK)) return i;
- }
- return -1;
- }
- int isdn_msg_get_index_by_event(struct isdn_msg msgs[], enum event_e event, int nt)
- {
- int i;
- for (i=0; i< msgs_max; i++)
- if ( event == msgs[i].event) return i;
- cb_log(10,0, "get_index: event not found!\n");
- return -1;
- }
- enum event_e isdn_msg_get_event(struct isdn_msg msgs[], msg_t *msg, int nt)
- {
- int i=isdn_msg_get_index(msgs, msg, nt);
- if(i>=0) return msgs[i].event;
- return EVENT_UNKNOWN;
- }
- char * isdn_msg_get_info(struct isdn_msg msgs[], msg_t *msg, int nt)
- {
- int i=isdn_msg_get_index(msgs, msg, nt);
- if(i>=0) return msgs[i].info;
- return NULL;
- }
- char EVENT_CLEAN_INFO[] = "CLEAN_UP";
- char EVENT_DTMF_TONE_INFO[] = "DTMF_TONE";
- char EVENT_NEW_L3ID_INFO[] = "NEW_L3ID";
- char EVENT_NEW_BC_INFO[] = "NEW_BC";
- char EVENT_PORT_ALARM_INFO[] = "ALARM";
- char EVENT_NEW_CHANNEL_INFO[] = "NEW_CHANNEL";
- char EVENT_BCHAN_DATA_INFO[] = "BCHAN_DATA";
- char EVENT_BCHAN_ACTIVATED_INFO[] = "BCHAN_ACTIVATED";
- char EVENT_TONE_GENERATE_INFO[] = "TONE_GENERATE";
- char EVENT_BCHAN_ERROR_INFO[] = "BCHAN_ERROR";
- char * isdn_get_info(struct isdn_msg msgs[], enum event_e event, int nt)
- {
- int i=isdn_msg_get_index_by_event(msgs, event, nt);
- if(i>=0) return msgs[i].info;
- if (event == EVENT_CLEANUP) return EVENT_CLEAN_INFO;
- if (event == EVENT_DTMF_TONE) return EVENT_DTMF_TONE_INFO;
- if (event == EVENT_NEW_L3ID) return EVENT_NEW_L3ID_INFO;
- if (event == EVENT_NEW_BC) return EVENT_NEW_BC_INFO;
- if (event == EVENT_NEW_CHANNEL) return EVENT_NEW_CHANNEL_INFO;
- if (event == EVENT_BCHAN_DATA) return EVENT_BCHAN_DATA_INFO;
- if (event == EVENT_BCHAN_ACTIVATED) return EVENT_BCHAN_ACTIVATED_INFO;
- if (event == EVENT_TONE_GENERATE) return EVENT_TONE_GENERATE_INFO;
- if (event == EVENT_PORT_ALARM) return EVENT_PORT_ALARM_INFO;
- if (event == EVENT_BCHAN_ERROR) return EVENT_BCHAN_ERROR_INFO;
- return NULL;
- }
- int isdn_msg_parse_event(struct isdn_msg msgs[], msg_t *msg, struct misdn_bchannel *bc, int nt)
- {
- int i=isdn_msg_get_index(msgs, msg, nt);
- if(i<0) return -1;
- msgs[i].msg_parser(msgs, msg, bc, nt);
- return 0;
- }
- msg_t * isdn_msg_build_event(struct isdn_msg msgs[], struct misdn_bchannel *bc, enum event_e event, int nt)
- {
- int i=isdn_msg_get_index_by_event(msgs, event, nt);
- if(i<0) return NULL;
- return msgs[i].msg_builder(msgs, bc, nt);
- }
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