libpri-1.4.2.tar.gz_asterisk_libpri

/* * libpri: An implementation of Primary Rate ISDN * * Written by Mark Spencer <markster@digium.com> * * Copyright (C) 2001-2005, Digium * All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include "compat.h" #include "libpri.h" #include "pri_internal.h" #include "pri_q921.h" #include "pri_q931.h" #include "pri_facility.h" #include <unistd.h> #include <stdlib.h> #include <string.h> #include <ctype.h> #include <stdio.h> #include <limits.h> #define MAX_MAND_IES 10 struct msgtype { int msgnum; char *name; int mandies[MAX_MAND_IES]; }; static struct msgtype msgs[] = { /* Call establishment messages */ { Q931_ALERTING, "ALERTING" }, { Q931_CALL_PROCEEDING, "CALL PROCEEDING" }, { Q931_CONNECT, "CONNECT" }, { Q931_CONNECT_ACKNOWLEDGE, "CONNECT ACKNOWLEDGE" }, { Q931_PROGRESS, "PROGRESS", { Q931_PROGRESS_INDICATOR } }, { Q931_SETUP, "SETUP", { Q931_BEARER_CAPABILITY, Q931_CHANNEL_IDENT } }, { Q931_SETUP_ACKNOWLEDGE, "SETUP ACKNOWLEDGE" }, /* Call disestablishment messages */ { Q931_DISCONNECT, "DISCONNECT", { Q931_CAUSE } }, { Q931_RELEASE, "RELEASE" }, { Q931_RELEASE_COMPLETE, "RELEASE COMPLETE" }, { Q931_RESTART, "RESTART", { Q931_RESTART_INDICATOR } }, { Q931_RESTART_ACKNOWLEDGE, "RESTART ACKNOWLEDGE", { Q931_RESTART_INDICATOR } }, /* Miscellaneous */ { Q931_STATUS, "STATUS", { Q931_CAUSE, Q931_CALL_STATE } }, { Q931_STATUS_ENQUIRY, "STATUS ENQUIRY" }, { Q931_USER_INFORMATION, "USER_INFORMATION" }, { Q931_SEGMENT, "SEGMENT" }, { Q931_CONGESTION_CONTROL, "CONGESTION CONTROL" }, { Q931_INFORMATION, "INFORMATION" }, { Q931_FACILITY, "FACILITY" }, { Q931_NOTIFY, "NOTIFY", { Q931_IE_NOTIFY_IND } }, /* Call Management */ { Q931_HOLD, "HOLD" }, { Q931_HOLD_ACKNOWLEDGE, "HOLD ACKNOWLEDGE" }, { Q931_HOLD_REJECT, "HOLD REJECT" }, { Q931_RETRIEVE, "RETRIEVE" }, { Q931_RETRIEVE_ACKNOWLEDGE, "RETRIEVE ACKNOWLEDGE" }, { Q931_RETRIEVE_REJECT, "RETRIEVE REJECT" }, { Q931_RESUME, "RESUME" }, { Q931_RESUME_ACKNOWLEDGE, "RESUME ACKNOWLEDGE", { Q931_CHANNEL_IDENT } }, { Q931_RESUME_REJECT, "RESUME REJECT", { Q931_CAUSE } }, { Q931_SUSPEND, "SUSPEND" }, { Q931_SUSPEND_ACKNOWLEDGE, "SUSPEND ACKNOWLEDGE" }, { Q931_SUSPEND_REJECT, "SUSPEND REJECT" }, /* Maintenance */ { NATIONAL_SERVICE, "SERVICE" }, { NATIONAL_SERVICE_ACKNOWLEDGE, "SERVICE ACKNOWLEDGE" }, }; static struct msgtype causes[] = { { PRI_CAUSE_UNALLOCATED, "Unallocated (unassigned) number" }, { PRI_CAUSE_NO_ROUTE_TRANSIT_NET, "No route to specified transmit network" }, { PRI_CAUSE_NO_ROUTE_DESTINATION, "No route to destination" }, { PRI_CAUSE_CHANNEL_UNACCEPTABLE, "Channel unacceptable" }, { PRI_CAUSE_CALL_AWARDED_DELIVERED, "Call awarded and being delivered in an established channel" }, { PRI_CAUSE_NORMAL_CLEARING, "Normal Clearing" }, { PRI_CAUSE_USER_BUSY, "User busy" }, { PRI_CAUSE_NO_USER_RESPONSE, "No user responding" }, { PRI_CAUSE_NO_ANSWER, "User alerting, no answer" }, { PRI_CAUSE_CALL_REJECTED, "Call Rejected" }, { PRI_CAUSE_NUMBER_CHANGED, "Number changed" }, { PRI_CAUSE_DESTINATION_OUT_OF_ORDER, "Destination out of order" }, { PRI_CAUSE_INVALID_NUMBER_FORMAT, "Invalid number format" }, { PRI_CAUSE_FACILITY_REJECTED, "Facility rejected" }, { PRI_CAUSE_RESPONSE_TO_STATUS_ENQUIRY, "Response to STATus ENQuiry" }, { PRI_CAUSE_NORMAL_UNSPECIFIED, "Normal, unspecified" }, { PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION, "Circuit/channel congestion" }, { PRI_CAUSE_NETWORK_OUT_OF_ORDER, "Network out of order" }, { PRI_CAUSE_NORMAL_TEMPORARY_FAILURE, "Temporary failure" }, { PRI_CAUSE_SWITCH_CONGESTION, "Switching equipment congestion" }, { PRI_CAUSE_ACCESS_INFO_DISCARDED, "Access information discarded" }, { PRI_CAUSE_REQUESTED_CHAN_UNAVAIL, "Requested channel not available" }, { PRI_CAUSE_PRE_EMPTED, "Pre-empted" }, { PRI_CAUSE_FACILITY_NOT_SUBSCRIBED, "Facility not subscribed" }, { PRI_CAUSE_OUTGOING_CALL_BARRED, "Outgoing call barred" }, { PRI_CAUSE_INCOMING_CALL_BARRED, "Incoming call barred" }, { PRI_CAUSE_BEARERCAPABILITY_NOTAUTH, "Bearer capability not authorized" }, { PRI_CAUSE_BEARERCAPABILITY_NOTAVAIL, "Bearer capability not available" }, { PRI_CAUSE_BEARERCAPABILITY_NOTIMPL, "Bearer capability not implemented" }, { PRI_CAUSE_SERVICEOROPTION_NOTAVAIL, "Service or option not available, unspecified" }, { PRI_CAUSE_CHAN_NOT_IMPLEMENTED, "Channel not implemented" }, { PRI_CAUSE_FACILITY_NOT_IMPLEMENTED, "Facility not implemented" }, { PRI_CAUSE_INVALID_CALL_REFERENCE, "Invalid call reference value" }, { PRI_CAUSE_IDENTIFIED_CHANNEL_NOTEXIST, "Identified channel does not exist" }, { PRI_CAUSE_INCOMPATIBLE_DESTINATION, "Incompatible destination" }, { PRI_CAUSE_INVALID_MSG_UNSPECIFIED, "Invalid message unspecified" }, { PRI_CAUSE_MANDATORY_IE_MISSING, "Mandatory information element is missing" }, { PRI_CAUSE_MESSAGE_TYPE_NONEXIST, "Message type nonexist." }, { PRI_CAUSE_WRONG_MESSAGE, "Wrong message" }, { PRI_CAUSE_IE_NONEXIST, "Info. element nonexist or not implemented" }, { PRI_CAUSE_INVALID_IE_CONTENTS, "Invalid information element contents" }, { PRI_CAUSE_WRONG_CALL_STATE, "Message not compatible with call state" }, { PRI_CAUSE_RECOVERY_ON_TIMER_EXPIRE, "Recover on timer expiry" }, { PRI_CAUSE_MANDATORY_IE_LENGTH_ERROR, "Mandatory IE length error" }, { PRI_CAUSE_PROTOCOL_ERROR, "Protocol error, unspecified" }, { PRI_CAUSE_INTERWORKING, "Interworking, unspecified" }, }; static struct msgtype facilities[] = { { PRI_NSF_SID_PREFERRED, "CPN (SID) preferred" }, { PRI_NSF_ANI_PREFERRED, "BN (ANI) preferred" }, { PRI_NSF_SID_ONLY, "CPN (SID) only" }, { PRI_NSF_ANI_ONLY, "BN (ANI) only" }, { PRI_NSF_CALL_ASSOC_TSC, "Call Associated TSC" }, { PRI_NSF_NOTIF_CATSC_CLEARING, "Notification of CATSC Clearing or Resource Unavailable" }, { PRI_NSF_OPERATOR, "Operator" }, { PRI_NSF_PCCO, "Pre-subscribed Common Carrier Operator (PCCO)" }, { PRI_NSF_SDN, "SDN (including GSDN)" }, { PRI_NSF_TOLL_FREE_MEGACOM, "Toll Free MEGACOM" }, { PRI_NSF_MEGACOM, "MEGACOM" }, { PRI_NSF_ACCUNET, "ACCUNET Switched Digital Service" }, { PRI_NSF_LONG_DISTANCE_SERVICE, "Long Distance Service" }, { PRI_NSF_INTERNATIONAL_TOLL_FREE, "International Toll Free Service" }, { PRI_NSF_ATT_MULTIQUEST, "AT&T MultiQuest" }, { PRI_NSF_CALL_REDIRECTION_SERVICE, "Call Redirection Service" } }; #define FLAG_PREFERRED 2 #define FLAG_EXCLUSIVE 4 #define RESET_INDICATOR_CHANNEL 0 #define RESET_INDICATOR_DS1 6 #define RESET_INDICATOR_PRI 7 #define TRANS_MODE_64_CIRCUIT 0x10 #define TRANS_MODE_2x64_CIRCUIT 0x11 #define TRANS_MODE_384_CIRCUIT 0x13 #define TRANS_MODE_1536_CIRCUIT 0x15 #define TRANS_MODE_1920_CIRCUIT 0x17 #define TRANS_MODE_MULTIRATE 0x18 #define TRANS_MODE_PACKET 0x40 #define RATE_ADAPT_56K 0x0f #define LAYER_2_LAPB 0x46 #define LAYER_3_X25 0x66 /* The 4ESS uses a different audio field */ #define PRI_TRANS_CAP_AUDIO_4ESS 0x08 /* Don't forget to update PRI_PROG_xxx at libpri.h */ #define Q931_PROG_CALL_NOT_E2E_ISDN 0x01 #define Q931_PROG_CALLED_NOT_ISDN 0x02 #define Q931_PROG_CALLER_NOT_ISDN 0x03 #define Q931_PROG_CALLER_RETURNED_TO_ISDN 0x04 #define Q931_PROG_INBAND_AVAILABLE 0x08 #define Q931_PROG_DELAY_AT_INTERF 0x0a #define Q93