1412 lines
32 KiB
C
1412 lines
32 KiB
C
/*
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* Chan_Misdn -- Channel Driver for Asterisk
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*
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* Interface to mISDN
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*
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* Copyright (C) 2005, Christian Richter
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*
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* Christian Richter <crich@beronet.com>
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*
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* heaviliy patched from jollys ie.cpp, jolly gave me ALL
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* rights for this code, i can even have my own copyright on it.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*/
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/*! \file
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* \brief Interface to mISDN
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* \author Christian Richter <crich@beronet.com>
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*/
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/*
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the pointer of enc_ie_* always points to the IE itself
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if qi is not NULL (TE-mode), offset is set
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*/
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#include "asterisk.h"
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#include <string.h>
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#include <mISDNuser/mISDNlib.h>
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#include <mISDNuser/isdn_net.h>
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#include <mISDNuser/l3dss1.h>
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#include <mISDNuser/net_l3.h>
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#include "asterisk/localtime.h"
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#define MISDN_IE_DEBG 0
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/* support stuff */
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static void strnncpy(char *dest, const char *src, size_t len, size_t dst_len)
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{
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if (len > dst_len-1)
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len = dst_len-1;
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strncpy(dest, src, len);
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dest[len] = '\0';
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}
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/* IE_COMPLETE */
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static void enc_ie_complete(unsigned char **ntmode, msg_t *msg, int complete, int nt, struct misdn_bchannel *bc)
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{
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unsigned char *p;
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Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
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if (complete<0 || complete>1)
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{
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printf("%s: ERROR: complete(%d) is out of range.\n", __FUNCTION__, complete);
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return;
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}
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if (complete)
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if (MISDN_IE_DEBG) printf(" complete=%d\n", complete);
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if (complete)
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{
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p = msg_put(msg, 1);
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if (nt)
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{
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*ntmode = p;
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} else
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qi->QI_ELEMENT(sending_complete) = p - (unsigned char *)qi - sizeof(Q931_info_t);
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p[0] = IE_COMPLETE;
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}
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}
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static void dec_ie_complete(unsigned char *p, Q931_info_t *qi, int *complete, int nt, struct misdn_bchannel *bc)
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{
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*complete = 0;
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if (!nt)
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{
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if (qi->QI_ELEMENT(sending_complete))
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*complete = 1;
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} else
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if (p)
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*complete = 1;
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if (*complete)
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if (MISDN_IE_DEBG) printf(" complete=%d\n", *complete);
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}
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/* IE_BEARER */
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static void enc_ie_bearer(unsigned char **ntmode, msg_t *msg, int coding, int capability, int mode, int rate, int multi, int user, int nt, struct misdn_bchannel *bc)
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{
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unsigned char *p;
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Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
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int l;
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if (coding<0 || coding>3)
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{
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printf("%s: ERROR: coding(%d) is out of range.\n", __FUNCTION__, coding);
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return;
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}
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if (capability<0 || capability>31)
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{
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printf("%s: ERROR: capability(%d) is out of range.\n", __FUNCTION__, capability);
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return;
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}
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if (mode<0 || mode>3)
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{
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printf("%s: ERROR: mode(%d) is out of range.\n", __FUNCTION__, mode);
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return;
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}
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if (rate<0 || rate>31)
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{
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printf("%s: ERROR: rate(%d) is out of range.\n", __FUNCTION__, rate);
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return;
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}
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if (multi>127)
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{
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printf("%s: ERROR: multi(%d) is out of range.\n", __FUNCTION__, multi);
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return;
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}
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if (user>31)
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{
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printf("%s: ERROR: user L1(%d) is out of range.\n", __FUNCTION__, rate);
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return;
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}
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if (rate!=24 && multi>=0)
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{
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printf("%s: WARNING: multi(%d) is only possible if rate(%d) would be 24.\n", __FUNCTION__, multi, rate);
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multi = -1;
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}
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if (MISDN_IE_DEBG) printf(" coding=%d capability=%d mode=%d rate=%d multi=%d user=%d\n", coding, capability, mode, rate, multi, user);
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l = 2 + (multi>=0) + (user>=0);
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p = msg_put(msg, l+2);
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if (nt)
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*ntmode = p+1;
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else
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qi->QI_ELEMENT(bearer_capability) = p - (unsigned char *)qi - sizeof(Q931_info_t);
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p[0] = IE_BEARER;
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p[1] = l;
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p[2] = 0x80 + (coding<<5) + capability;
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p[3] = 0x80 + (mode<<5) + rate;
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if (multi >= 0)
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p[4] = 0x80 + multi;
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if (user >= 0)
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p[4+(multi>=0)] = 0xa0 + user;
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}
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static void dec_ie_bearer(unsigned char *p, Q931_info_t *qi, int *coding, int *capability, int *mode, int *rate, int *multi, int *user,
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int *async, int *urate, int *stopbits, int *dbits, int *parity, int nt, struct misdn_bchannel *bc)
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{
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int octet;
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*coding = -1;
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*capability = -1;
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*mode = -1;
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*rate = -1;
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*multi = -1;
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*user = -1;
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*async = -1;
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*urate = -1;
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*stopbits = -1;
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*dbits = -1;
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*parity = -1;
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if (!nt)
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{
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p = NULL;
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#ifdef LLC_SUPPORT
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if (qi->QI_ELEMENT(llc)) {
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p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(llc) + 1;
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}
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#endif
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if (qi->QI_ELEMENT(bearer_capability))
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p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(bearer_capability) + 1;
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}
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if (!p)
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return;
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if (p[0] < 2)
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{
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printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
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return;
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}
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*coding = (p[1]&0x60) >> 5;
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*capability = p[1] & 0x1f;
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octet = 2;
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if (!(p[1] & 0x80))
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octet++;
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if (p[0] < octet)
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goto done;
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*mode = (p[octet]&0x60) >> 5;
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*rate = p[octet] & 0x1f;
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octet++;
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if (p[0] < octet)
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goto done;
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if (*rate == 0x18) {
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/* Rate multiplier only present if 64Kb/s base rate */
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*multi = p[octet++] & 0x7f;
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}
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if (p[0] < octet)
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goto done;
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/* Start L1 info */
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if ((p[octet] & 0x60) == 0x20) {
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*user = p[octet] & 0x1f;
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if (p[0] <= octet)
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goto done;
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if (p[octet++] & 0x80)
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goto l2;
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*async = !!(p[octet] & 0x40);
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/* 0x20 is inband negotiation */
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*urate = p[octet] & 0x1f;
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if (p[0] <= octet)
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goto done;
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if (p[octet++] & 0x80)
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goto l2;
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/* Ignore next byte for now: Intermediate rate, NIC, flow control */
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if (p[0] <= octet)
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goto done;
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if (p[octet++] & 0x80)
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goto l2;
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/* And the next one. Header, multiframe, mode, assignor/ee, negotiation */
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if (p[0] <= octet)
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goto done;
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if (~p[octet++] & 0x80)
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goto l2;
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/* Wheee. V.110 speed information */
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*stopbits = (p[octet] & 0x60) >> 5;
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*dbits = (p[octet] & 0x18) >> 3;
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*parity = p[octet] & 7;
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octet++;
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}
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l2: /* Nobody seems to want the rest so we don't bother (yet) */
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done:
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if (MISDN_IE_DEBG) printf(" coding=%d capability=%d mode=%d rate=%d multi=%d user=%d async=%d urate=%d stopbits=%d dbits=%d parity=%d\n", *coding, *capability, *mode, *rate, *multi, *user, *async, *urate, *stopbits, *dbits, *parity);
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}
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/* IE_CALL_ID */
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#if 0
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static void enc_ie_call_id(unsigned char **ntmode, msg_t *msg, char *callid, int callid_len, int nt, struct misdn_bchannel *bc)
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{
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unsigned char *p;
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Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
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int l;
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char debug[25];
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int i;
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if (!callid || callid_len<=0)
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{
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return;
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}
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if (callid_len>8)
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{
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printf("%s: ERROR: callid_len(%d) is out of range.\n", __FUNCTION__, callid_len);
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return;
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}
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i = 0;
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while(i < callid_len)
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{
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if (MISDN_IE_DEBG) printf(debug+(i*3), " %02x", callid[i]);
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i++;
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}
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if (MISDN_IE_DEBG) printf(" callid%s\n", debug);
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l = callid_len;
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p = msg_put(msg, l+2);
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if (nt)
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*ntmode = p+1;
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else
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qi->QI_ELEMENT(call_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
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p[0] = IE_CALL_ID;
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p[1] = l;
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memcpy(p+2, callid, callid_len);
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}
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#endif
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#if 0
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static void dec_ie_call_id(unsigned char *p, Q931_info_t *qi, char *callid, int *callid_len, int nt, struct misdn_bchannel *bc)
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{
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char debug[25];
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int i;
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*callid_len = -1;
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if (!nt)
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{
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p = NULL;
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if (qi->QI_ELEMENT(call_id))
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p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(call_id) + 1;
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}
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if (!p)
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return;
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if (p[0] > 8)
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{
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printf("%s: ERROR: IE too long (%d).\n", __FUNCTION__, p[0]);
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return;
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}
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*callid_len = p[0];
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memcpy(callid, p+1, *callid_len);
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i = 0;
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while(i < *callid_len)
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{
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if (MISDN_IE_DEBG) printf(debug+(i*3), " %02x", callid[i]);
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i++;
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}
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if (MISDN_IE_DEBG) printf(" callid%s\n", debug);
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}
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#endif
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/* IE_CALLED_PN */
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static void enc_ie_called_pn(unsigned char **ntmode, msg_t *msg, int type, int plan, char *number, int nt, struct misdn_bchannel *bc)
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{
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unsigned char *p;
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Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
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int l;
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if (type<0 || type>7)
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{
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printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
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return;
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}
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if (plan<0 || plan>15)
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{
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printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
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return;
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}
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if (!number[0])
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{
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printf("%s: ERROR: number is not given.\n", __FUNCTION__);
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return;
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}
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if (MISDN_IE_DEBG) printf(" type=%d plan=%d number='%s'\n", type, plan, number);
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l = 1+strlen((char *)number);
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p = msg_put(msg, l+2);
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if (nt)
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*ntmode = p+1;
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else
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qi->QI_ELEMENT(called_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
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p[0] = IE_CALLED_PN;
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p[1] = l;
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p[2] = 0x80 + (type<<4) + plan;
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strncpy((char *)p+3, (char *)number, strlen((char *)number));
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}
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static void dec_ie_called_pn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, char *number, size_t number_len, int nt, struct misdn_bchannel *bc)
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{
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*type = -1;
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*plan = -1;
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*number = '\0';
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if (!nt)
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{
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p = NULL;
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if (qi->QI_ELEMENT(called_nr))
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p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(called_nr) + 1;
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}
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if (!p)
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return;
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if (p[0] < 2)
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{
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printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
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return;
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}
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*type = (p[1]&0x70) >> 4;
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*plan = p[1] & 0xf;
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strnncpy(number, (char *)p+2, p[0]-1, number_len);
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if (MISDN_IE_DEBG) printf(" type=%d plan=%d number='%s'\n", *type, *plan, number);
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}
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/* IE_CALLING_PN */
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static void enc_ie_calling_pn(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, int screen, char *number, int nt, struct misdn_bchannel *bc)
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{
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unsigned char *p;
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Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
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int l;
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if (type<0 || type>7)
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{
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printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
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return;
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}
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if (plan<0 || plan>15)
|
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{
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printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
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return;
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}
|
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if (present>3)
|
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{
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printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
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return;
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}
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if (present >= 0) if (screen<0 || screen>3)
|
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{
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printf("%s: ERROR: screen(%d) is out of range.\n", __FUNCTION__, screen);
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return;
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}
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if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", type, plan, present, screen, number);
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l = 1;
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if (number) if (number[0])
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l += strlen((char *)number);
|
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if (present >= 0)
|
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l += 1;
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p = msg_put(msg, l+2);
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if (nt)
|
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*ntmode = p+1;
|
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else
|
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qi->QI_ELEMENT(calling_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
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p[0] = IE_CALLING_PN;
|
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p[1] = l;
|
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if (present >= 0)
|
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{
|
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p[2] = 0x00 + (type<<4) + plan;
|
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p[3] = 0x80 + (present<<5) + screen;
|
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if (number) if (number[0])
|
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strncpy((char *)p+4, (char *)number, strlen((char *)number));
|
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} else
|
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{
|
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p[2] = 0x80 + (type<<4) + plan;
|
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if (number) if (number[0])
|
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strncpy((char *)p+3, (char *)number, strlen((char *)number));
|
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}
|
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}
|
|
|
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static void dec_ie_calling_pn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, int *screen, char *number, size_t number_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*type = -1;
|
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*plan = -1;
|
|
*present = -1;
|
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*screen = -1;
|
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*number = '\0';
|
|
|
|
if (!nt)
|
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{
|
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p = NULL;
|
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if (qi->QI_ELEMENT(calling_nr))
|
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p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(calling_nr) + 1;
|
|
}
|
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if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
*type = (p[1]&0x70) >> 4;
|
|
*plan = p[1] & 0xf;
|
|
if (!(p[1] & 0x80))
|
|
{
|
|
if (p[0] < 2)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
*present = (p[2]&0x60) >> 5;
|
|
*screen = p[2] & 0x3;
|
|
strnncpy(number, (char *)p+3, p[0]-2, number_len);
|
|
} else
|
|
{
|
|
strnncpy(number, (char *)p+2, p[0]-1, number_len);
|
|
/* SPECIAL workarround for IBT software bug */
|
|
/* if (number[0]==0x80) */
|
|
/* strcpy((char *)number, (char *)number+1); */
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", *type, *plan, *present, *screen, number);
|
|
}
|
|
|
|
|
|
/* IE_CONNECTED_PN */
|
|
static void enc_ie_connected_pn(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, int screen, char *number, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (type<0 || type>7)
|
|
{
|
|
printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
|
|
return;
|
|
}
|
|
if (plan<0 || plan>15)
|
|
{
|
|
printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
|
|
return;
|
|
}
|
|
if (present>3)
|
|
{
|
|
printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
|
|
return;
|
|
}
|
|
if (present >= 0) if (screen<0 || screen>3)
|
|
{
|
|
printf("%s: ERROR: screen(%d) is out of range.\n", __FUNCTION__, screen);
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", type, plan, present, screen, number);
|
|
|
|
l = 1;
|
|
if (number) if (number[0])
|
|
l += strlen((char *)number);
|
|
if (present >= 0)
|
|
l += 1;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(connected_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_CONNECT_PN;
|
|
p[1] = l;
|
|
if (present >= 0)
|
|
{
|
|
p[2] = 0x00 + (type<<4) + plan;
|
|
p[3] = 0x80 + (present<<5) + screen;
|
|
if (number) if (number[0])
|
|
strncpy((char *)p+4, (char *)number, strlen((char *)number));
|
|
} else
|
|
{
|
|
p[2] = 0x80 + (type<<4) + plan;
|
|
if (number) if (number[0])
|
|
strncpy((char *)p+3, (char *)number, strlen((char *)number));
|
|
}
|
|
}
|
|
|
|
static void dec_ie_connected_pn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, int *screen, char *number, size_t number_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*type = -1;
|
|
*plan = -1;
|
|
*present = -1;
|
|
*screen = -1;
|
|
*number = '\0';
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(connected_nr))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(connected_nr) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
*type = (p[1]&0x70) >> 4;
|
|
*plan = p[1] & 0xf;
|
|
if (!(p[1] & 0x80))
|
|
{
|
|
if (p[0] < 2)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
*present = (p[2]&0x60) >> 5;
|
|
*screen = p[2] & 0x3;
|
|
strnncpy(number, (char *)p+3, p[0]-2, number_len);
|
|
} else
|
|
{
|
|
strnncpy(number, (char *)p+2, p[0]-1, number_len);
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", *type, *plan, *present, *screen, number);
|
|
}
|
|
|
|
|
|
/* IE_CAUSE */
|
|
static void enc_ie_cause(unsigned char **ntmode, msg_t *msg, int location, int cause, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (location<0 || location>7)
|
|
{
|
|
printf("%s: ERROR: location(%d) is out of range.\n", __FUNCTION__, location);
|
|
return;
|
|
}
|
|
if (cause<0 || cause>127)
|
|
{
|
|
printf("%s: ERROR: cause(%d) is out of range.\n", __FUNCTION__, cause);
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" location=%d cause=%d\n", location, cause);
|
|
|
|
l = 2;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(cause) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_CAUSE;
|
|
p[1] = l;
|
|
p[2] = 0x80 + location;
|
|
p[3] = 0x80 + cause;
|
|
}
|
|
|
|
#if 0
|
|
static void enc_ie_cause_standalone(unsigned char **ntmode, msg_t *msg, int location, int cause, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p = msg_put(msg, 4);
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
if (ntmode)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(cause) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_CAUSE;
|
|
p[1] = 2;
|
|
p[2] = 0x80 + location;
|
|
p[3] = 0x80 + cause;
|
|
}
|
|
#endif
|
|
|
|
static void dec_ie_cause(unsigned char *p, Q931_info_t *qi, int *location, int *cause, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*location = -1;
|
|
*cause = -1;
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(cause))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(cause) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 2)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
*location = p[1] & 0x0f;
|
|
*cause = p[2] & 0x7f;
|
|
|
|
if (MISDN_IE_DEBG) printf(" location=%d cause=%d\n", *location, *cause);
|
|
}
|
|
|
|
|
|
/* IE_CHANNEL_ID */
|
|
static void enc_ie_channel_id(unsigned char **ntmode, msg_t *msg, int exclusive, int channel, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
struct misdn_stack *stack=get_stack_by_bc(bc);
|
|
int pri = stack->pri;
|
|
|
|
if (exclusive<0 || exclusive>1)
|
|
{
|
|
printf("%s: ERROR: exclusive(%d) is out of range.\n", __FUNCTION__, exclusive);
|
|
return;
|
|
}
|
|
if ((channel<0 || channel>0xff)
|
|
|| (!pri && (channel>2 && channel<0xff))
|
|
|| (pri && (channel>31 && channel<0xff))
|
|
|| (pri && channel==16))
|
|
{
|
|
printf("%s: ERROR: channel(%d) is out of range.\n", __FUNCTION__, channel);
|
|
return;
|
|
}
|
|
|
|
/* if (MISDN_IE_DEBG) printf(" exclusive=%d channel=%d\n", exclusive, channel); */
|
|
|
|
|
|
if (!pri)
|
|
{
|
|
/* BRI */
|
|
l = 1;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(channel_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_CHANNEL_ID;
|
|
p[1] = l;
|
|
if (channel == 0xff)
|
|
channel = 3;
|
|
p[2] = 0x80 + (exclusive<<3) + channel;
|
|
/* printf(" exclusive=%d channel=%d\n", exclusive, channel); */
|
|
} else
|
|
{
|
|
/* PRI */
|
|
if (channel == 0) /* no channel */
|
|
return; /* IE not present */
|
|
/* if (MISDN_IE_DEBG) printf("channel = %d\n", channel); */
|
|
if (channel == 0xff) /* any channel */
|
|
{
|
|
l = 1;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(channel_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_CHANNEL_ID;
|
|
p[1] = l;
|
|
p[2] = 0x80 + 0x20 + 0x03;
|
|
/* if (MISDN_IE_DEBG) printf("%02x\n", p[2]); */
|
|
return; /* end */
|
|
}
|
|
l = 3;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(channel_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_CHANNEL_ID;
|
|
p[1] = l;
|
|
p[2] = 0x80 + 0x20 + (exclusive<<3) + 0x01;
|
|
p[3] = 0x80 + 3; /* CCITT, Number, B-type */
|
|
p[4] = 0x80 + channel;
|
|
/* if (MISDN_IE_DEBG) printf("%02x %02x %02x\n", p[2], p[3], p[4]); */
|
|
}
|
|
}
|
|
|
|
static void dec_ie_channel_id(unsigned char *p, Q931_info_t *qi, int *exclusive, int *channel, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
struct misdn_stack *stack=get_stack_by_bc(bc);
|
|
int pri =stack->pri;
|
|
|
|
*exclusive = -1;
|
|
*channel = -1;
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(channel_id))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(channel_id) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
if (p[1] & 0x40)
|
|
{
|
|
printf("%s: ERROR: refering to channels of other interfaces is not supported.\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
if (p[1] & 0x04)
|
|
{
|
|
printf("%s: ERROR: using d-channel is not supported.\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
*exclusive = (p[1]&0x08) >> 3;
|
|
if (!pri)
|
|
{
|
|
/* BRI */
|
|
if (p[1] & 0x20)
|
|
{
|
|
printf("%s: ERROR: extended channel ID with non PRI interface.\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
*channel = p[1] & 0x03;
|
|
if (*channel == 3)
|
|
*channel = 0xff;
|
|
} else
|
|
{
|
|
/* PRI */
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short for PRI (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
if (!(p[1] & 0x20))
|
|
{
|
|
printf("%s: ERROR: basic channel ID with PRI interface.\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
if ((p[1]&0x03) == 0x00)
|
|
{
|
|
/* no channel */
|
|
*channel = 0;
|
|
return;
|
|
}
|
|
if ((p[1]&0x03) == 0x03)
|
|
{
|
|
/* any channel */
|
|
*channel = 0xff;
|
|
return;
|
|
}
|
|
if (p[0] < 3)
|
|
{
|
|
printf("%s: ERROR: IE too short for PRI with channel(%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
if (p[2] & 0x10)
|
|
{
|
|
printf("%s: ERROR: channel map not supported.\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
*channel = p[3] & 0x7f;
|
|
if ( (*channel<1) | (*channel==16) | (*channel>31))
|
|
{
|
|
printf("%s: ERROR: PRI interface channel out of range (%d).\n", __FUNCTION__, *channel);
|
|
return;
|
|
}
|
|
/* if (MISDN_IE_DEBG) printf("%02x %02x %02x\n", p[1], p[2], p[3]); */
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" exclusive=%d channel=%d\n", *exclusive, *channel);
|
|
}
|
|
|
|
|
|
/* IE_DATE */
|
|
static void enc_ie_date(unsigned char **ntmode, msg_t *msg, time_t ti, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
struct timeval tv = { ti, 0 };
|
|
struct ast_tm tm;
|
|
|
|
ast_localtime(&tv, &tm, NULL);
|
|
if (MISDN_IE_DEBG) printf(" year=%d month=%d day=%d hour=%d minute=%d\n", tm.tm_year%100, tm.tm_mon+1, tm.tm_mday, tm.tm_hour, tm.tm_min);
|
|
|
|
l = 5;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(date) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_DATE;
|
|
p[1] = l;
|
|
p[2] = tm.tm_year % 100;
|
|
p[3] = tm.tm_mon + 1;
|
|
p[4] = tm.tm_mday;
|
|
p[5] = tm.tm_hour;
|
|
p[6] = tm.tm_min;
|
|
}
|
|
|
|
|
|
/* IE_DISPLAY */
|
|
static void enc_ie_display(unsigned char **ntmode, msg_t *msg, char *display, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *) (msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (!display[0])
|
|
{
|
|
printf("%s: ERROR: display text not given.\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
l = strlen(display);
|
|
if (80 < l)
|
|
{
|
|
l = 80;
|
|
printf("%s: WARNING: display text too long (max %d chars), cutting.\n", __FUNCTION__, l);
|
|
display[l] = '\0';
|
|
}
|
|
|
|
/* if (MISDN_IE_DEBG) printf(" display='%s' (len=%d)\n", display, l); */
|
|
|
|
p = msg_put(msg, l + 2);
|
|
if (nt)
|
|
*ntmode = p + 1;
|
|
else
|
|
qi->QI_ELEMENT(display) = p - (unsigned char *) qi - sizeof(Q931_info_t);
|
|
p[0] = IE_DISPLAY;
|
|
p[1] = l;
|
|
strncpy((char *) p + 2, display, l);
|
|
}
|
|
|
|
#if 0
|
|
static void dec_ie_display(unsigned char *p, Q931_info_t *qi, char *display, size_t display_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*display = '\0';
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(display))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(display) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
strnncpy(display, (char *)p+1, p[0], display_len);
|
|
|
|
if (MISDN_IE_DEBG) printf(" display='%s'\n", display);
|
|
}
|
|
#endif
|
|
|
|
/* IE_KEYPAD */
|
|
#if 1
|
|
static void enc_ie_keypad(unsigned char **ntmode, msg_t *msg, char *keypad, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (!keypad[0])
|
|
{
|
|
printf("%s: ERROR: keypad info not given.\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" keypad='%s'\n", keypad);
|
|
|
|
l = strlen(keypad);
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(keypad) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_KEYPAD;
|
|
p[1] = l;
|
|
strncpy((char *)p+2, keypad, strlen(keypad));
|
|
}
|
|
#endif
|
|
|
|
static void dec_ie_keypad(unsigned char *p, Q931_info_t *qi, char *keypad, size_t keypad_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*keypad = '\0';
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(keypad))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(keypad) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
strnncpy(keypad, (char *)p+1, p[0], keypad_len);
|
|
|
|
if (MISDN_IE_DEBG) printf(" keypad='%s'\n", keypad);
|
|
}
|
|
|
|
|
|
/* IE_NOTIFY */
|
|
static void enc_ie_notify(unsigned char **ntmode, msg_t *msg, int notify, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (notify<0 || notify>0x7f)
|
|
{
|
|
printf("%s: ERROR: notify(%d) is out of range.\n", __FUNCTION__, notify);
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" notify=%d\n", notify);
|
|
|
|
l = 1;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(notify) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_NOTIFY;
|
|
p[1] = l;
|
|
p[2] = 0x80 + notify;
|
|
}
|
|
|
|
static void dec_ie_notify(unsigned char *p, Q931_info_t *qi, int *notify, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*notify = -1;
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(notify))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(notify) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
*notify = p[1] & 0x7f;
|
|
|
|
if (MISDN_IE_DEBG) printf(" notify=%d\n", *notify);
|
|
}
|
|
|
|
|
|
/* IE_PROGRESS */
|
|
static void enc_ie_progress(unsigned char **ntmode, msg_t *msg, int coding, int location, int progress, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (coding<0 || coding>0x03)
|
|
{
|
|
printf("%s: ERROR: coding(%d) is out of range.\n", __FUNCTION__, coding);
|
|
return;
|
|
}
|
|
if (location<0 || location>0x0f)
|
|
{
|
|
printf("%s: ERROR: location(%d) is out of range.\n", __FUNCTION__, location);
|
|
return;
|
|
}
|
|
if (progress<0 || progress>0x7f)
|
|
{
|
|
printf("%s: ERROR: progress(%d) is out of range.\n", __FUNCTION__, progress);
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" coding=%d location=%d progress=%d\n", coding, location, progress);
|
|
|
|
l = 2;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(progress) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_PROGRESS;
|
|
p[1] = l;
|
|
p[2] = 0x80 + (coding<<5) + location;
|
|
p[3] = 0x80 + progress;
|
|
}
|
|
|
|
static void dec_ie_progress(unsigned char *p, Q931_info_t *qi, int *coding, int *location, int *progress, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*coding = -1;
|
|
*location = -1;
|
|
//*progress = -1;
|
|
*progress = 0;
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(progress))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(progress) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
*coding = (p[1]&0x60) >> 5;
|
|
*location = p[1] & 0x0f;
|
|
*progress = p[2] & 0x7f;
|
|
|
|
if (MISDN_IE_DEBG) printf(" coding=%d location=%d progress=%d\n", *coding, *location, *progress);
|
|
}
|
|
|
|
|
|
/* IE_REDIR_NR (redirecting = during MT_SETUP) */
|
|
static void enc_ie_redir_nr(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, int screen, int reason, char *number, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (type<0 || type>7)
|
|
{
|
|
printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
|
|
return;
|
|
}
|
|
if (plan<0 || plan>15)
|
|
{
|
|
printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
|
|
return;
|
|
}
|
|
if (present > 3)
|
|
{
|
|
printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
|
|
return;
|
|
}
|
|
if (present >= 0) if (screen<0 || screen>3)
|
|
{
|
|
printf("%s: ERROR: screen(%d) is out of range.\n", __FUNCTION__, screen);
|
|
return;
|
|
}
|
|
if (reason > 0x0f)
|
|
{
|
|
printf("%s: ERROR: reason(%d) is out of range.\n", __FUNCTION__, reason);
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d readon=%d number='%s'\n", type, plan, present, screen, reason, number);
|
|
|
|
l = 1;
|
|
if (number)
|
|
l += strlen((char *)number);
|
|
if (present >= 0)
|
|
{
|
|
l += 1;
|
|
if (reason >= 0)
|
|
l += 1;
|
|
}
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(redirect_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_REDIR_NR;
|
|
p[1] = l;
|
|
if (present >= 0)
|
|
{
|
|
if (reason >= 0)
|
|
{
|
|
p[2] = 0x00 + (type<<4) + plan;
|
|
p[3] = 0x00 + (present<<5) + screen;
|
|
p[4] = 0x80 + reason;
|
|
if (number)
|
|
strncpy((char *)p+5, (char *)number, strlen((char *)number));
|
|
} else
|
|
{
|
|
p[2] = 0x00 + (type<<4) + plan;
|
|
p[3] = 0x80 + (present<<5) + screen;
|
|
if (number)
|
|
strncpy((char *)p+4, (char *)number, strlen((char *)number));
|
|
}
|
|
} else
|
|
{
|
|
p[2] = 0x80 + (type<<4) + plan;
|
|
if (number) if (number[0])
|
|
strncpy((char *)p+3, (char *)number, strlen((char *)number));
|
|
}
|
|
}
|
|
|
|
static void dec_ie_redir_nr(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, int *screen, int *reason, char *number, size_t number_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*type = -1;
|
|
*plan = -1;
|
|
*present = -1;
|
|
*screen = -1;
|
|
*reason = -1;
|
|
*number = '\0';
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(redirect_nr))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(redirect_nr) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
*type = (p[1]&0x70) >> 4;
|
|
*plan = p[1] & 0xf;
|
|
if (!(p[1] & 0x80))
|
|
{
|
|
*present = (p[2]&0x60) >> 5;
|
|
*screen = p[2] & 0x3;
|
|
if (!(p[2] & 0x80))
|
|
{
|
|
*reason = p[3] & 0x0f;
|
|
strnncpy(number, (char *)p+4, p[0]-3, number_len);
|
|
} else
|
|
{
|
|
strnncpy(number, (char *)p+3, p[0]-2, number_len);
|
|
}
|
|
} else
|
|
{
|
|
strnncpy(number, (char *)p+2, p[0]-1, number_len);
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d reason=%d number='%s'\n", *type, *plan, *present, *screen, *reason, number);
|
|
}
|
|
|
|
|
|
/* IE_REDIR_DN (redirection = during MT_NOTIFY) */
|
|
static void enc_ie_redir_dn(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, char *number, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (type<0 || type>7)
|
|
{
|
|
printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
|
|
return;
|
|
}
|
|
if (plan<0 || plan>15)
|
|
{
|
|
printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
|
|
return;
|
|
}
|
|
if (present > 3)
|
|
{
|
|
printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d number='%s'\n", type, plan, present, number);
|
|
|
|
l = 1;
|
|
if (number)
|
|
l += strlen((char *)number);
|
|
if (present >= 0)
|
|
l += 1;
|
|
p = msg_put(msg, l+2);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else {
|
|
qi->QI_ELEMENT(redirect_dn) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
}
|
|
p[0] = IE_REDIR_DN;
|
|
p[1] = l;
|
|
if (present >= 0)
|
|
{
|
|
p[2] = 0x00 + (type<<4) + plan;
|
|
p[3] = 0x80 + (present<<5);
|
|
if (number)
|
|
strncpy((char *)p+4, (char *)number, strlen((char *)number));
|
|
} else
|
|
{
|
|
p[2] = 0x80 + (type<<4) + plan;
|
|
if (number)
|
|
strncpy((char *)p+3, (char *)number, strlen((char *)number));
|
|
}
|
|
}
|
|
|
|
static void dec_ie_redir_dn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, char *number, size_t number_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*type = -1;
|
|
*plan = -1;
|
|
*present = -1;
|
|
*number = '\0';
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(redirect_dn))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(redirect_dn) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
if (p[0] < 1)
|
|
{
|
|
printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
|
|
return;
|
|
}
|
|
|
|
*type = (p[1]&0x70) >> 4;
|
|
*plan = p[1] & 0xf;
|
|
if (!(p[1] & 0x80))
|
|
{
|
|
*present = (p[2]&0x60) >> 5;
|
|
strnncpy(number, (char *)p+3, p[0]-2, number_len);
|
|
} else
|
|
{
|
|
strnncpy(number, (char *)p+2, p[0]-1, number_len);
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d number='%s'\n", *type, *plan, *present, number);
|
|
}
|
|
|
|
|
|
/* IE_USERUSER */
|
|
#if 1
|
|
static void enc_ie_useruser(unsigned char **ntmode, msg_t *msg, int protocol, char *user, int user_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
int l;
|
|
|
|
if (protocol<0 || protocol>127)
|
|
{
|
|
printf("%s: ERROR: protocol(%d) is out of range.\n", __FUNCTION__, protocol);
|
|
return;
|
|
}
|
|
if (!user || user_len<=0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (MISDN_IE_DEBG) {
|
|
size_t i;
|
|
char debug[768];
|
|
|
|
for (i = 0; i < user_len; ++i) {
|
|
sprintf(debug + (i * 3), " %02x", user[i]);
|
|
}
|
|
debug[i * 3] = 0;
|
|
printf(" protocol=%d user-user%s\n", protocol, debug);
|
|
}
|
|
|
|
l = user_len+1;
|
|
p = msg_put(msg, l+3);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(useruser) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_USER_USER;
|
|
p[1] = l;
|
|
p[2] = protocol;
|
|
memcpy(p+3, user, user_len);
|
|
}
|
|
#endif
|
|
|
|
#if 1
|
|
static void dec_ie_useruser(unsigned char *p, Q931_info_t *qi, int *protocol, char *user, int *user_len, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
*user_len = 0;
|
|
*protocol = -1;
|
|
|
|
if (!nt)
|
|
{
|
|
p = NULL;
|
|
if (qi->QI_ELEMENT(useruser))
|
|
p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(useruser) + 1;
|
|
}
|
|
if (!p)
|
|
return;
|
|
|
|
*user_len = p[0]-1;
|
|
if (p[0] < 1)
|
|
return;
|
|
*protocol = p[1];
|
|
memcpy(user, p+2, (*user_len<=128)?*(user_len):128); /* clip to 128 maximum */
|
|
|
|
if (MISDN_IE_DEBG) {
|
|
int i;
|
|
char debug[768];
|
|
|
|
for (i = 0; i < *user_len; ++i) {
|
|
sprintf(debug + (i * 3), " %02x", user[i]);
|
|
}
|
|
debug[i * 3] = 0;
|
|
printf(" protocol=%d user-user%s\n", *protocol, debug);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* IE_DISPLAY */
|
|
static void enc_ie_restart_ind(unsigned char **ntmode, msg_t *msg, unsigned char rind, int nt, struct misdn_bchannel *bc)
|
|
{
|
|
unsigned char *p;
|
|
Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
|
|
/* if (MISDN_IE_DEBG) printf(" display='%s' (len=%d)\n", display, strlen((char *)display)); */
|
|
|
|
p = msg_put(msg, 3);
|
|
if (nt)
|
|
*ntmode = p+1;
|
|
else
|
|
qi->QI_ELEMENT(restart_ind) = p - (unsigned char *)qi - sizeof(Q931_info_t);
|
|
p[0] = IE_RESTART_IND;
|
|
p[1] = 1;
|
|
p[2] = rind;
|
|
|
|
}
|
|
|