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9f13fae247
This fixes coverity bug #517. Since IESIZE is greater than IESIZE_NI1 we might run past the end of ielist_ni1. This fixes it by using the proper IESIZE_NI1 define. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Acked-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1522 lines
31 KiB
C
1522 lines
31 KiB
C
/* $Id: q931.c,v 1.12.2.3 2004/01/13 14:31:26 keil Exp $
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*
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* code to decode ITU Q.931 call control messages
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*
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* Author Jan den Ouden
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* Copyright by Jan den Ouden
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* Changelog:
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*
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* Pauline Middelink general improvements
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* Beat Doebeli cause texts, display information element
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* Karsten Keil cause texts, display information element for 1TR6
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*
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*/
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#include "hisax.h"
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#include "l3_1tr6.h"
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void
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iecpy(u_char * dest, u_char * iestart, int ieoffset)
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{
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u_char *p;
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int l;
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p = iestart + ieoffset + 2;
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l = iestart[1] - ieoffset;
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while (l--)
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*dest++ = *p++;
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*dest++ = '\0';
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}
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/*
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* According to Table 4-2/Q.931
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*/
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static
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struct MessageType {
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u_char nr;
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char *descr;
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} mtlist[] = {
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{
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0x1, "ALERTING"
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},
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{
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0x2, "CALL PROCEEDING"
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},
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{
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0x7, "CONNECT"
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},
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{
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0xf, "CONNECT ACKNOWLEDGE"
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},
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{
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0x3, "PROGRESS"
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},
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{
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0x5, "SETUP"
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},
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{
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0xd, "SETUP ACKNOWLEDGE"
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},
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{
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0x24, "HOLD"
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},
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{
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0x28, "HOLD ACKNOWLEDGE"
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},
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{
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0x30, "HOLD REJECT"
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},
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{
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0x31, "RETRIEVE"
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},
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{
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0x33, "RETRIEVE ACKNOWLEDGE"
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},
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{
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0x37, "RETRIEVE REJECT"
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},
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{
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0x26, "RESUME"
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},
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{
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0x2e, "RESUME ACKNOWLEDGE"
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},
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{
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0x22, "RESUME REJECT"
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},
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{
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0x25, "SUSPEND"
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},
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{
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0x2d, "SUSPEND ACKNOWLEDGE"
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},
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{
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0x21, "SUSPEND REJECT"
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},
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{
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0x20, "USER INFORMATION"
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},
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{
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0x45, "DISCONNECT"
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},
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{
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0x4d, "RELEASE"
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},
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{
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0x5a, "RELEASE COMPLETE"
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},
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{
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0x46, "RESTART"
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},
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{
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0x4e, "RESTART ACKNOWLEDGE"
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},
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{
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0x60, "SEGMENT"
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},
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{
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0x79, "CONGESTION CONTROL"
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},
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{
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0x7b, "INFORMATION"
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},
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{
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0x62, "FACILITY"
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},
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{
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0x6e, "NOTIFY"
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},
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{
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0x7d, "STATUS"
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},
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{
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0x75, "STATUS ENQUIRY"
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}
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};
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#define MTSIZE sizeof(mtlist)/sizeof(struct MessageType)
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static
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struct MessageType mt_n0[] =
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{
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{MT_N0_REG_IND, "REGister INDication"},
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{MT_N0_CANC_IND, "CANCel INDication"},
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{MT_N0_FAC_STA, "FACility STAtus"},
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{MT_N0_STA_ACK, "STAtus ACKnowledge"},
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{MT_N0_STA_REJ, "STAtus REJect"},
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{MT_N0_FAC_INF, "FACility INFormation"},
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{MT_N0_INF_ACK, "INFormation ACKnowledge"},
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{MT_N0_INF_REJ, "INFormation REJect"},
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{MT_N0_CLOSE, "CLOSE"},
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{MT_N0_CLO_ACK, "CLOse ACKnowledge"}
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};
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#define MT_N0_LEN (sizeof(mt_n0) / sizeof(struct MessageType))
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static
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struct MessageType mt_n1[] =
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{
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{MT_N1_ESC, "ESCape"},
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{MT_N1_ALERT, "ALERT"},
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{MT_N1_CALL_SENT, "CALL SENT"},
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{MT_N1_CONN, "CONNect"},
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{MT_N1_CONN_ACK, "CONNect ACKnowledge"},
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{MT_N1_SETUP, "SETUP"},
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{MT_N1_SETUP_ACK, "SETUP ACKnowledge"},
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{MT_N1_RES, "RESume"},
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{MT_N1_RES_ACK, "RESume ACKnowledge"},
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{MT_N1_RES_REJ, "RESume REJect"},
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{MT_N1_SUSP, "SUSPend"},
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{MT_N1_SUSP_ACK, "SUSPend ACKnowledge"},
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{MT_N1_SUSP_REJ, "SUSPend REJect"},
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{MT_N1_USER_INFO, "USER INFO"},
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{MT_N1_DET, "DETach"},
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{MT_N1_DISC, "DISConnect"},
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{MT_N1_REL, "RELease"},
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{MT_N1_REL_ACK, "RELease ACKnowledge"},
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{MT_N1_CANC_ACK, "CANCel ACKnowledge"},
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{MT_N1_CANC_REJ, "CANCel REJect"},
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{MT_N1_CON_CON, "CONgestion CONtrol"},
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{MT_N1_FAC, "FACility"},
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{MT_N1_FAC_ACK, "FACility ACKnowledge"},
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{MT_N1_FAC_CAN, "FACility CANcel"},
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{MT_N1_FAC_REG, "FACility REGister"},
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{MT_N1_FAC_REJ, "FACility REJect"},
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{MT_N1_INFO, "INFOrmation"},
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{MT_N1_REG_ACK, "REGister ACKnowledge"},
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{MT_N1_REG_REJ, "REGister REJect"},
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{MT_N1_STAT, "STATus"}
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};
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#define MT_N1_LEN (sizeof(mt_n1) / sizeof(struct MessageType))
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static int
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prbits(char *dest, u_char b, int start, int len)
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{
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char *dp = dest;
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b = b << (8 - start);
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while (len--) {
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if (b & 0x80)
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*dp++ = '1';
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else
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*dp++ = '0';
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b = b << 1;
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}
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return (dp - dest);
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}
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static
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u_char *
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skipext(u_char * p)
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{
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while (!(*p++ & 0x80));
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return (p);
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}
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/*
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* Cause Values According to Q.850
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* edescr: English description
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* ddescr: German description used by Swissnet II (Swiss Telecom
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* not yet written...
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*/
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static
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struct CauseValue {
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u_char nr;
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char *edescr;
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char *ddescr;
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} cvlist[] = {
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{
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0x01, "Unallocated (unassigned) number", "Nummer nicht zugeteilt"
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},
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{
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0x02, "No route to specified transit network", ""
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},
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{
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0x03, "No route to destination", ""
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},
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{
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0x04, "Send special information tone", ""
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},
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{
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0x05, "Misdialled trunk prefix", ""
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},
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{
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0x06, "Channel unacceptable", "Kanal nicht akzeptierbar"
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},
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{
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0x07, "Channel awarded and being delivered in an established channel", ""
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},
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{
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0x08, "Preemption", ""
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},
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{
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0x09, "Preemption - circuit reserved for reuse", ""
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},
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{
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0x10, "Normal call clearing", "Normale Ausloesung"
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},
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{
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0x11, "User busy", "TNB besetzt"
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},
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{
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0x12, "No user responding", ""
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},
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{
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0x13, "No answer from user (user alerted)", ""
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},
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{
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0x14, "Subscriber absent", ""
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},
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{
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0x15, "Call rejected", ""
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},
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{
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0x16, "Number changed", ""
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},
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{
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0x1a, "non-selected user clearing", ""
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},
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{
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0x1b, "Destination out of order", ""
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},
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{
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0x1c, "Invalid number format (address incomplete)", ""
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},
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{
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0x1d, "Facility rejected", ""
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},
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{
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0x1e, "Response to Status enquiry", ""
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},
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{
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0x1f, "Normal, unspecified", ""
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},
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{
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0x22, "No circuit/channel available", ""
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},
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{
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0x26, "Network out of order", ""
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},
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{
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0x27, "Permanent frame mode connection out-of-service", ""
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},
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{
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0x28, "Permanent frame mode connection operational", ""
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},
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{
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0x29, "Temporary failure", ""
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},
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{
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0x2a, "Switching equipment congestion", ""
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},
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{
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0x2b, "Access information discarded", ""
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},
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{
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0x2c, "Requested circuit/channel not available", ""
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},
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{
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0x2e, "Precedence call blocked", ""
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},
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{
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0x2f, "Resource unavailable, unspecified", ""
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},
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{
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0x31, "Quality of service unavailable", ""
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},
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{
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0x32, "Requested facility not subscribed", ""
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},
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{
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0x35, "Outgoing calls barred within CUG", ""
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},
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{
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0x37, "Incoming calls barred within CUG", ""
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},
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{
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0x39, "Bearer capability not authorized", ""
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},
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{
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0x3a, "Bearer capability not presently available", ""
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},
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{
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0x3e, "Inconsistency in designated outgoing access information and subscriber class ", " "
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},
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{
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0x3f, "Service or option not available, unspecified", ""
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},
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{
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0x41, "Bearer capability not implemented", ""
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},
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{
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0x42, "Channel type not implemented", ""
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},
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{
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0x43, "Requested facility not implemented", ""
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},
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{
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0x44, "Only restricted digital information bearer capability is available", ""
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},
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{
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0x4f, "Service or option not implemented", ""
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},
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{
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0x51, "Invalid call reference value", ""
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},
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{
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0x52, "Identified channel does not exist", ""
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},
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{
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0x53, "A suspended call exists, but this call identity does not", ""
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},
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{
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0x54, "Call identity in use", ""
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},
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{
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0x55, "No call suspended", ""
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},
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{
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0x56, "Call having the requested call identity has been cleared", ""
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},
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{
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0x57, "User not member of CUG", ""
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},
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{
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0x58, "Incompatible destination", ""
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},
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{
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0x5a, "Non-existent CUG", ""
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},
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{
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0x5b, "Invalid transit network selection", ""
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},
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{
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0x5f, "Invalid message, unspecified", ""
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},
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{
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0x60, "Mandatory information element is missing", ""
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},
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{
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0x61, "Message type non-existent or not implemented", ""
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},
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{
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0x62, "Message not compatible with call state or message type non-existent or not implemented ", " "
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},
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{
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0x63, "Information element/parameter non-existent or not implemented", ""
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},
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{
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0x64, "Invalid information element contents", ""
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},
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{
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0x65, "Message not compatible with call state", ""
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},
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{
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0x66, "Recovery on timer expiry", ""
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},
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{
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0x67, "Parameter non-existent or not implemented - passed on", ""
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},
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{
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0x6e, "Message with unrecognized parameter discarded", ""
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},
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{
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0x6f, "Protocol error, unspecified", ""
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},
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{
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0x7f, "Interworking, unspecified", ""
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},
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};
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#define CVSIZE sizeof(cvlist)/sizeof(struct CauseValue)
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static
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int
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prcause(char *dest, u_char * p)
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{
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u_char *end;
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char *dp = dest;
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int i, cause;
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end = p + p[1] + 1;
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p += 2;
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dp += sprintf(dp, " coding ");
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dp += prbits(dp, *p, 7, 2);
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dp += sprintf(dp, " location ");
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dp += prbits(dp, *p, 4, 4);
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*dp++ = '\n';
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p = skipext(p);
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cause = 0x7f & *p++;
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/* locate cause value */
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for (i = 0; i < CVSIZE; i++)
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if (cvlist[i].nr == cause)
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break;
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/* display cause value if it exists */
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if (i == CVSIZE)
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dp += sprintf(dp, "Unknown cause type %x!\n", cause);
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else
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dp += sprintf(dp, " cause value %x : %s \n", cause, cvlist[i].edescr);
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while (!0) {
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if (p > end)
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break;
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dp += sprintf(dp, " diag attribute %d ", *p++ & 0x7f);
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dp += sprintf(dp, " rej %d ", *p & 0x7f);
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if (*p & 0x80) {
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*dp++ = '\n';
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break;
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} else
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dp += sprintf(dp, " av %d\n", (*++p) & 0x7f);
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}
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return (dp - dest);
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}
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static
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struct MessageType cause_1tr6[] =
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{
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{CAUSE_InvCRef, "Invalid Call Reference"},
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{CAUSE_BearerNotImpl, "Bearer Service Not Implemented"},
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{CAUSE_CIDunknown, "Caller Identity unknown"},
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{CAUSE_CIDinUse, "Caller Identity in Use"},
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{CAUSE_NoChans, "No Channels available"},
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{CAUSE_FacNotImpl, "Facility Not Implemented"},
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{CAUSE_FacNotSubscr, "Facility Not Subscribed"},
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{CAUSE_OutgoingBarred, "Outgoing calls barred"},
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{CAUSE_UserAccessBusy, "User Access Busy"},
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{CAUSE_NegativeGBG, "Negative GBG"},
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{CAUSE_UnknownGBG, "Unknown GBG"},
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{CAUSE_NoSPVknown, "No SPV known"},
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{CAUSE_DestNotObtain, "Destination not obtainable"},
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{CAUSE_NumberChanged, "Number changed"},
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{CAUSE_OutOfOrder, "Out Of Order"},
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{CAUSE_NoUserResponse, "No User Response"},
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{CAUSE_UserBusy, "User Busy"},
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{CAUSE_IncomingBarred, "Incoming Barred"},
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{CAUSE_CallRejected, "Call Rejected"},
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{CAUSE_NetworkCongestion, "Network Congestion"},
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{CAUSE_RemoteUser, "Remote User initiated"},
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{CAUSE_LocalProcErr, "Local Procedure Error"},
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{CAUSE_RemoteProcErr, "Remote Procedure Error"},
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{CAUSE_RemoteUserSuspend, "Remote User Suspend"},
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{CAUSE_RemoteUserResumed, "Remote User Resumed"},
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{CAUSE_UserInfoDiscarded, "User Info Discarded"}
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};
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static int cause_1tr6_len = (sizeof(cause_1tr6) / sizeof(struct MessageType));
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|
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static int
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prcause_1tr6(char *dest, u_char * p)
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|
{
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char *dp = dest;
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int i, cause;
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p++;
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if (0 == *p) {
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dp += sprintf(dp, " OK (cause length=0)\n");
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return (dp - dest);
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} else if (*p > 1) {
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dp += sprintf(dp, " coding ");
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dp += prbits(dp, p[2], 7, 2);
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dp += sprintf(dp, " location ");
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dp += prbits(dp, p[2], 4, 4);
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*dp++ = '\n';
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}
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p++;
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cause = 0x7f & *p;
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|
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/* locate cause value */
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for (i = 0; i < cause_1tr6_len; i++)
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if (cause_1tr6[i].nr == cause)
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break;
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|
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/* display cause value if it exists */
|
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if (i == cause_1tr6_len)
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dp += sprintf(dp, "Unknown cause type %x!\n", cause);
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else
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dp += sprintf(dp, " cause value %x : %s \n", cause, cause_1tr6[i].descr);
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return (dp - dest);
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|
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}
|
|
|
|
static int
|
|
prchident(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
|
|
p += 2;
|
|
dp += sprintf(dp, " octet 3 ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
*dp++ = '\n';
|
|
return (dp - dest);
|
|
}
|
|
|
|
static int
|
|
prcalled(char *dest, u_char * p)
|
|
{
|
|
int l;
|
|
char *dp = dest;
|
|
|
|
p++;
|
|
l = *p++ - 1;
|
|
dp += sprintf(dp, " octet 3 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
*dp++ = '\n';
|
|
dp += sprintf(dp, " number digits ");
|
|
while (l--)
|
|
*dp++ = *p++;
|
|
*dp++ = '\n';
|
|
return (dp - dest);
|
|
}
|
|
static int
|
|
prcalling(char *dest, u_char * p)
|
|
{
|
|
int l;
|
|
char *dp = dest;
|
|
|
|
p++;
|
|
l = *p++ - 1;
|
|
dp += sprintf(dp, " octet 3 ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
*dp++ = '\n';
|
|
if (!(*p & 0x80)) {
|
|
dp += sprintf(dp, " octet 3a ");
|
|
dp += prbits(dp, *++p, 8, 8);
|
|
*dp++ = '\n';
|
|
l--;
|
|
};
|
|
p++;
|
|
|
|
dp += sprintf(dp, " number digits ");
|
|
while (l--)
|
|
*dp++ = *p++;
|
|
*dp++ = '\n';
|
|
return (dp - dest);
|
|
}
|
|
|
|
static
|
|
int
|
|
prbearer(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest, ch;
|
|
|
|
p += 2;
|
|
dp += sprintf(dp, " octet 3 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
*dp++ = '\n';
|
|
dp += sprintf(dp, " octet 4 ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
*dp++ = '\n';
|
|
if ((*p++ & 0x1f) == 0x18) {
|
|
dp += sprintf(dp, " octet 4.1 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
*dp++ = '\n';
|
|
}
|
|
/* check for user information layer 1 */
|
|
if ((*p & 0x60) == 0x20) {
|
|
ch = ' ';
|
|
do {
|
|
dp += sprintf(dp, " octet 5%c ", ch);
|
|
dp += prbits(dp, *p, 8, 8);
|
|
*dp++ = '\n';
|
|
if (ch == ' ')
|
|
ch = 'a';
|
|
else
|
|
ch++;
|
|
}
|
|
while (!(*p++ & 0x80));
|
|
}
|
|
/* check for user information layer 2 */
|
|
if ((*p & 0x60) == 0x40) {
|
|
dp += sprintf(dp, " octet 6 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
*dp++ = '\n';
|
|
}
|
|
/* check for user information layer 3 */
|
|
if ((*p & 0x60) == 0x60) {
|
|
dp += sprintf(dp, " octet 7 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
*dp++ = '\n';
|
|
}
|
|
return (dp - dest);
|
|
}
|
|
|
|
|
|
static
|
|
int
|
|
prbearer_ni1(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
u_char len;
|
|
|
|
p++;
|
|
len = *p++;
|
|
dp += sprintf(dp, " octet 3 ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
switch (*p++) {
|
|
case 0x80:
|
|
dp += sprintf(dp, " Speech");
|
|
break;
|
|
case 0x88:
|
|
dp += sprintf(dp, " Unrestricted digital information");
|
|
break;
|
|
case 0x90:
|
|
dp += sprintf(dp, " 3.1 kHz audio");
|
|
break;
|
|
default:
|
|
dp += sprintf(dp, " Unknown information-transfer capability");
|
|
}
|
|
*dp++ = '\n';
|
|
dp += sprintf(dp, " octet 4 ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
switch (*p++) {
|
|
case 0x90:
|
|
dp += sprintf(dp, " 64 kbps, circuit mode");
|
|
break;
|
|
case 0xc0:
|
|
dp += sprintf(dp, " Packet mode");
|
|
break;
|
|
default:
|
|
dp += sprintf(dp, " Unknown transfer mode");
|
|
}
|
|
*dp++ = '\n';
|
|
if (len > 2) {
|
|
dp += sprintf(dp, " octet 5 ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
switch (*p++) {
|
|
case 0x21:
|
|
dp += sprintf(dp, " Rate adaption\n");
|
|
dp += sprintf(dp, " octet 5a ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
break;
|
|
case 0xa2:
|
|
dp += sprintf(dp, " u-law");
|
|
break;
|
|
default:
|
|
dp += sprintf(dp, " Unknown UI layer 1 protocol");
|
|
}
|
|
*dp++ = '\n';
|
|
}
|
|
return (dp - dest);
|
|
}
|
|
|
|
static int
|
|
general(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
char ch = ' ';
|
|
int l, octet = 3;
|
|
|
|
p++;
|
|
l = *p++;
|
|
/* Iterate over all octets in the information element */
|
|
while (l--) {
|
|
dp += sprintf(dp, " octet %d%c ", octet, ch);
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
*dp++ = '\n';
|
|
|
|
/* last octet in group? */
|
|
if (*p & 0x80) {
|
|
octet++;
|
|
ch = ' ';
|
|
} else if (ch == ' ')
|
|
ch = 'a';
|
|
else
|
|
ch++;
|
|
}
|
|
return (dp - dest);
|
|
}
|
|
|
|
static int
|
|
general_ni1(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
char ch = ' ';
|
|
int l, octet = 3;
|
|
|
|
p++;
|
|
l = *p++;
|
|
/* Iterate over all octets in the information element */
|
|
while (l--) {
|
|
dp += sprintf(dp, " octet %d%c ", octet, ch);
|
|
dp += prbits(dp, *p, 8, 8);
|
|
*dp++ = '\n';
|
|
|
|
/* last octet in group? */
|
|
if (*p++ & 0x80) {
|
|
octet++;
|
|
ch = ' ';
|
|
} else if (ch == ' ')
|
|
ch = 'a';
|
|
else
|
|
ch++;
|
|
}
|
|
return (dp - dest);
|
|
}
|
|
|
|
static int
|
|
prcharge(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
int l;
|
|
|
|
p++;
|
|
l = *p++ - 1;
|
|
dp += sprintf(dp, " GEA ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
dp += sprintf(dp, " Anzahl: ");
|
|
/* Iterate over all octets in the * information element */
|
|
while (l--)
|
|
*dp++ = *p++;
|
|
*dp++ = '\n';
|
|
return (dp - dest);
|
|
}
|
|
static int
|
|
prtext(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
int l;
|
|
|
|
p++;
|
|
l = *p++;
|
|
dp += sprintf(dp, " ");
|
|
/* Iterate over all octets in the * information element */
|
|
while (l--)
|
|
*dp++ = *p++;
|
|
*dp++ = '\n';
|
|
return (dp - dest);
|
|
}
|
|
|
|
static int
|
|
prfeatureind(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
|
|
p += 2; /* skip id, len */
|
|
dp += sprintf(dp, " octet 3 ");
|
|
dp += prbits(dp, *p, 8, 8);
|
|
*dp++ = '\n';
|
|
if (!(*p++ & 80)) {
|
|
dp += sprintf(dp, " octet 4 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
*dp++ = '\n';
|
|
}
|
|
dp += sprintf(dp, " Status: ");
|
|
switch (*p) {
|
|
case 0:
|
|
dp += sprintf(dp, "Idle");
|
|
break;
|
|
case 1:
|
|
dp += sprintf(dp, "Active");
|
|
break;
|
|
case 2:
|
|
dp += sprintf(dp, "Prompt");
|
|
break;
|
|
case 3:
|
|
dp += sprintf(dp, "Pending");
|
|
break;
|
|
default:
|
|
dp += sprintf(dp, "(Reserved)");
|
|
break;
|
|
}
|
|
*dp++ = '\n';
|
|
return (dp - dest);
|
|
}
|
|
|
|
static
|
|
struct DTag { /* Display tags */
|
|
u_char nr;
|
|
char *descr;
|
|
} dtaglist[] = {
|
|
{ 0x82, "Continuation" },
|
|
{ 0x83, "Called address" },
|
|
{ 0x84, "Cause" },
|
|
{ 0x85, "Progress indicator" },
|
|
{ 0x86, "Notification indicator" },
|
|
{ 0x87, "Prompt" },
|
|
{ 0x88, "Accumlated digits" },
|
|
{ 0x89, "Status" },
|
|
{ 0x8a, "Inband" },
|
|
{ 0x8b, "Calling address" },
|
|
{ 0x8c, "Reason" },
|
|
{ 0x8d, "Calling party name" },
|
|
{ 0x8e, "Called party name" },
|
|
{ 0x8f, "Orignal called name" },
|
|
{ 0x90, "Redirecting name" },
|
|
{ 0x91, "Connected name" },
|
|
{ 0x92, "Originating restrictions" },
|
|
{ 0x93, "Date & time of day" },
|
|
{ 0x94, "Call Appearance ID" },
|
|
{ 0x95, "Feature address" },
|
|
{ 0x96, "Redirection name" },
|
|
{ 0x9e, "Text" },
|
|
};
|
|
#define DTAGSIZE sizeof(dtaglist)/sizeof(struct DTag)
|
|
|
|
static int
|
|
disptext_ni1(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
int l, tag, len, i;
|
|
|
|
p++;
|
|
l = *p++ - 1;
|
|
if (*p++ != 0x80) {
|
|
dp += sprintf(dp, " Unknown display type\n");
|
|
return (dp - dest);
|
|
}
|
|
/* Iterate over all tag,length,text fields */
|
|
while (l > 0) {
|
|
tag = *p++;
|
|
len = *p++;
|
|
l -= len + 2;
|
|
/* Don't space or skip */
|
|
if ((tag == 0x80) || (tag == 0x81)) p++;
|
|
else {
|
|
for (i = 0; i < DTAGSIZE; i++)
|
|
if (tag == dtaglist[i].nr)
|
|
break;
|
|
|
|
/* When not found, give appropriate msg */
|
|
if (i != DTAGSIZE) {
|
|
dp += sprintf(dp, " %s: ", dtaglist[i].descr);
|
|
while (len--)
|
|
*dp++ = *p++;
|
|
} else {
|
|
dp += sprintf(dp, " (unknown display tag %2x): ", tag);
|
|
while (len--)
|
|
*dp++ = *p++;
|
|
}
|
|
dp += sprintf(dp, "\n");
|
|
}
|
|
}
|
|
return (dp - dest);
|
|
}
|
|
static int
|
|
display(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
char ch = ' ';
|
|
int l, octet = 3;
|
|
|
|
p++;
|
|
l = *p++;
|
|
/* Iterate over all octets in the * display-information element */
|
|
dp += sprintf(dp, " \"");
|
|
while (l--) {
|
|
dp += sprintf(dp, "%c", *p++);
|
|
|
|
/* last octet in group? */
|
|
if (*p & 0x80) {
|
|
octet++;
|
|
ch = ' ';
|
|
} else if (ch == ' ')
|
|
ch = 'a';
|
|
|
|
else
|
|
ch++;
|
|
}
|
|
*dp++ = '\"';
|
|
*dp++ = '\n';
|
|
return (dp - dest);
|
|
}
|
|
|
|
static int
|
|
prfacility(char *dest, u_char * p)
|
|
{
|
|
char *dp = dest;
|
|
int l, l2;
|
|
|
|
p++;
|
|
l = *p++;
|
|
dp += sprintf(dp, " octet 3 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
dp += sprintf(dp, "\n");
|
|
l -= 1;
|
|
|
|
while (l > 0) {
|
|
dp += sprintf(dp, " octet 4 ");
|
|
dp += prbits(dp, *p++, 8, 8);
|
|
dp += sprintf(dp, "\n");
|
|
dp += sprintf(dp, " octet 5 %d\n", l2 = *p++ & 0x7f);
|
|
l -= 2;
|
|
dp += sprintf(dp, " contents ");
|
|
while (l2--) {
|
|
dp += sprintf(dp, "%2x ", *p++);
|
|
l--;
|
|
}
|
|
dp += sprintf(dp, "\n");
|
|
}
|
|
|
|
return (dp - dest);
|
|
}
|
|
|
|
static
|
|
struct InformationElement {
|
|
u_char nr;
|
|
char *descr;
|
|
int (*f) (char *, u_char *);
|
|
} ielist[] = {
|
|
|
|
{
|
|
0x00, "Segmented message", general
|
|
},
|
|
{
|
|
0x04, "Bearer capability", prbearer
|
|
},
|
|
{
|
|
0x08, "Cause", prcause
|
|
},
|
|
{
|
|
0x10, "Call identity", general
|
|
},
|
|
{
|
|
0x14, "Call state", general
|
|
},
|
|
{
|
|
0x18, "Channel identification", prchident
|
|
},
|
|
{
|
|
0x1c, "Facility", prfacility
|
|
},
|
|
{
|
|
0x1e, "Progress indicator", general
|
|
},
|
|
{
|
|
0x20, "Network-specific facilities", general
|
|
},
|
|
{
|
|
0x27, "Notification indicator", general
|
|
},
|
|
{
|
|
0x28, "Display", display
|
|
},
|
|
{
|
|
0x29, "Date/Time", general
|
|
},
|
|
{
|
|
0x2c, "Keypad facility", general
|
|
},
|
|
{
|
|
0x34, "Signal", general
|
|
},
|
|
{
|
|
0x40, "Information rate", general
|
|
},
|
|
{
|
|
0x42, "End-to-end delay", general
|
|
},
|
|
{
|
|
0x43, "Transit delay selection and indication", general
|
|
},
|
|
{
|
|
0x44, "Packet layer binary parameters", general
|
|
},
|
|
{
|
|
0x45, "Packet layer window size", general
|
|
},
|
|
{
|
|
0x46, "Packet size", general
|
|
},
|
|
{
|
|
0x47, "Closed user group", general
|
|
},
|
|
{
|
|
0x4a, "Reverse charge indication", general
|
|
},
|
|
{
|
|
0x6c, "Calling party number", prcalling
|
|
},
|
|
{
|
|
0x6d, "Calling party subaddress", general
|
|
},
|
|
{
|
|
0x70, "Called party number", prcalled
|
|
},
|
|
{
|
|
0x71, "Called party subaddress", general
|
|
},
|
|
{
|
|
0x74, "Redirecting number", general
|
|
},
|
|
{
|
|
0x78, "Transit network selection", general
|
|
},
|
|
{
|
|
0x79, "Restart indicator", general
|
|
},
|
|
{
|
|
0x7c, "Low layer compatibility", general
|
|
},
|
|
{
|
|
0x7d, "High layer compatibility", general
|
|
},
|
|
{
|
|
0x7e, "User-user", general
|
|
},
|
|
{
|
|
0x7f, "Escape for extension", general
|
|
},
|
|
};
|
|
|
|
|
|
#define IESIZE sizeof(ielist)/sizeof(struct InformationElement)
|
|
|
|
static
|
|
struct InformationElement ielist_ni1[] = {
|
|
{ 0x04, "Bearer Capability", prbearer_ni1 },
|
|
{ 0x08, "Cause", prcause },
|
|
{ 0x14, "Call State", general_ni1 },
|
|
{ 0x18, "Channel Identification", prchident },
|
|
{ 0x1e, "Progress Indicator", general_ni1 },
|
|
{ 0x27, "Notification Indicator", general_ni1 },
|
|
{ 0x2c, "Keypad Facility", prtext },
|
|
{ 0x32, "Information Request", general_ni1 },
|
|
{ 0x34, "Signal", general_ni1 },
|
|
{ 0x38, "Feature Activation", general_ni1 },
|
|
{ 0x39, "Feature Indication", prfeatureind },
|
|
{ 0x3a, "Service Profile Identification (SPID)", prtext },
|
|
{ 0x3b, "Endpoint Identifier", general_ni1 },
|
|
{ 0x6c, "Calling Party Number", prcalling },
|
|
{ 0x6d, "Calling Party Subaddress", general_ni1 },
|
|
{ 0x70, "Called Party Number", prcalled },
|
|
{ 0x71, "Called Party Subaddress", general_ni1 },
|
|
{ 0x74, "Redirecting Number", general_ni1 },
|
|
{ 0x78, "Transit Network Selection", general_ni1 },
|
|
{ 0x7c, "Low Layer Compatibility", general_ni1 },
|
|
{ 0x7d, "High Layer Compatibility", general_ni1 },
|
|
};
|
|
|
|
|
|
#define IESIZE_NI1 sizeof(ielist_ni1)/sizeof(struct InformationElement)
|
|
|
|
static
|
|
struct InformationElement ielist_ni1_cs5[] = {
|
|
{ 0x1d, "Operator system access", general_ni1 },
|
|
{ 0x2a, "Display text", disptext_ni1 },
|
|
};
|
|
|
|
#define IESIZE_NI1_CS5 sizeof(ielist_ni1_cs5)/sizeof(struct InformationElement)
|
|
|
|
static
|
|
struct InformationElement ielist_ni1_cs6[] = {
|
|
{ 0x7b, "Call appearance", general_ni1 },
|
|
};
|
|
|
|
#define IESIZE_NI1_CS6 sizeof(ielist_ni1_cs6)/sizeof(struct InformationElement)
|
|
|
|
static struct InformationElement we_0[] =
|
|
{
|
|
{WE0_cause, "Cause", prcause_1tr6},
|
|
{WE0_connAddr, "Connecting Address", prcalled},
|
|
{WE0_callID, "Call IDentity", general},
|
|
{WE0_chanID, "Channel IDentity", general},
|
|
{WE0_netSpecFac, "Network Specific Facility", general},
|
|
{WE0_display, "Display", general},
|
|
{WE0_keypad, "Keypad", general},
|
|
{WE0_origAddr, "Origination Address", prcalled},
|
|
{WE0_destAddr, "Destination Address", prcalled},
|
|
{WE0_userInfo, "User Info", general}
|
|
};
|
|
|
|
#define WE_0_LEN (sizeof(we_0) / sizeof(struct InformationElement))
|
|
|
|
static struct InformationElement we_6[] =
|
|
{
|
|
{WE6_serviceInd, "Service Indicator", general},
|
|
{WE6_chargingInfo, "Charging Information", prcharge},
|
|
{WE6_date, "Date", prtext},
|
|
{WE6_facSelect, "Facility Select", general},
|
|
{WE6_facStatus, "Facility Status", general},
|
|
{WE6_statusCalled, "Status Called", general},
|
|
{WE6_addTransAttr, "Additional Transmission Attributes", general}
|
|
};
|
|
#define WE_6_LEN (sizeof(we_6) / sizeof(struct InformationElement))
|
|
|
|
int
|
|
QuickHex(char *txt, u_char * p, int cnt)
|
|
{
|
|
register int i;
|
|
register char *t = txt;
|
|
register u_char w;
|
|
|
|
for (i = 0; i < cnt; i++) {
|
|
*t++ = ' ';
|
|
w = (p[i] >> 4) & 0x0f;
|
|
if (w < 10)
|
|
*t++ = '0' + w;
|
|
else
|
|
*t++ = 'A' - 10 + w;
|
|
w = p[i] & 0x0f;
|
|
if (w < 10)
|
|
*t++ = '0' + w;
|
|
else
|
|
*t++ = 'A' - 10 + w;
|
|
}
|
|
*t++ = 0;
|
|
return (t - txt);
|
|
}
|
|
|
|
void
|
|
LogFrame(struct IsdnCardState *cs, u_char * buf, int size)
|
|
{
|
|
char *dp;
|
|
|
|
if (size < 1)
|
|
return;
|
|
dp = cs->dlog;
|
|
if (size < MAX_DLOG_SPACE / 3 - 10) {
|
|
*dp++ = 'H';
|
|
*dp++ = 'E';
|
|
*dp++ = 'X';
|
|
*dp++ = ':';
|
|
dp += QuickHex(dp, buf, size);
|
|
dp--;
|
|
*dp++ = '\n';
|
|
*dp = 0;
|
|
HiSax_putstatus(cs, NULL, cs->dlog);
|
|
} else
|
|
HiSax_putstatus(cs, "LogFrame: ", "warning Frame too big (%d)", size);
|
|
}
|
|
|
|
void
|
|
dlogframe(struct IsdnCardState *cs, struct sk_buff *skb, int dir)
|
|
{
|
|
u_char *bend, *buf;
|
|
char *dp;
|
|
unsigned char pd, cr_l, cr, mt;
|
|
unsigned char sapi, tei, ftyp;
|
|
int i, cset = 0, cs_old = 0, cs_fest = 0;
|
|
int size, finish = 0;
|
|
|
|
if (skb->len < 3)
|
|
return;
|
|
/* display header */
|
|
dp = cs->dlog;
|
|
dp += jiftime(dp, jiffies);
|
|
*dp++ = ' ';
|
|
sapi = skb->data[0] >> 2;
|
|
tei = skb->data[1] >> 1;
|
|
ftyp = skb->data[2];
|
|
buf = skb->data;
|
|
dp += sprintf(dp, "frame %s ", dir ? "network->user" : "user->network");
|
|
size = skb->len;
|
|
|
|
if (tei == GROUP_TEI) {
|
|
if (sapi == CTRL_SAPI) { /* sapi 0 */
|
|
if (ftyp == 3) {
|
|
dp += sprintf(dp, "broadcast\n");
|
|
buf += 3;
|
|
size -= 3;
|
|
} else {
|
|
dp += sprintf(dp, "no UI broadcast\n");
|
|
finish = 1;
|
|
}
|
|
} else if (sapi == TEI_SAPI) {
|
|
dp += sprintf(dp, "tei management\n");
|
|
finish = 1;
|
|
} else {
|
|
dp += sprintf(dp, "unknown sapi %d broadcast\n", sapi);
|
|
finish = 1;
|
|
}
|
|
} else {
|
|
if (sapi == CTRL_SAPI) {
|
|
if (!(ftyp & 1)) { /* IFrame */
|
|
dp += sprintf(dp, "with tei %d\n", tei);
|
|
buf += 4;
|
|
size -= 4;
|
|
} else {
|
|
dp += sprintf(dp, "SFrame with tei %d\n", tei);
|
|
finish = 1;
|
|
}
|
|
} else {
|
|
dp += sprintf(dp, "unknown sapi %d tei %d\n", sapi, tei);
|
|
finish = 1;
|
|
}
|
|
}
|
|
bend = skb->data + skb->len;
|
|
if (buf >= bend) {
|
|
dp += sprintf(dp, "frame too short\n");
|
|
finish = 1;
|
|
}
|
|
if (finish) {
|
|
*dp = 0;
|
|
HiSax_putstatus(cs, NULL, cs->dlog);
|
|
return;
|
|
}
|
|
if ((0xfe & buf[0]) == PROTO_DIS_N0) { /* 1TR6 */
|
|
/* locate message type */
|
|
pd = *buf++;
|
|
cr_l = *buf++;
|
|
if (cr_l)
|
|
cr = *buf++;
|
|
else
|
|
cr = 0;
|
|
mt = *buf++;
|
|
if (pd == PROTO_DIS_N0) { /* N0 */
|
|
for (i = 0; i < MT_N0_LEN; i++)
|
|
if (mt_n0[i].nr == mt)
|
|
break;
|
|
/* display message type if it exists */
|
|
if (i == MT_N0_LEN)
|
|
dp += sprintf(dp, "callref %d %s size %d unknown message type N0 %x!\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mt);
|
|
else
|
|
dp += sprintf(dp, "callref %d %s size %d message type %s\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mt_n0[i].descr);
|
|
} else { /* N1 */
|
|
for (i = 0; i < MT_N1_LEN; i++)
|
|
if (mt_n1[i].nr == mt)
|
|
break;
|
|
/* display message type if it exists */
|
|
if (i == MT_N1_LEN)
|
|
dp += sprintf(dp, "callref %d %s size %d unknown message type N1 %x!\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mt);
|
|
else
|
|
dp += sprintf(dp, "callref %d %s size %d message type %s\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mt_n1[i].descr);
|
|
}
|
|
|
|
/* display each information element */
|
|
while (buf < bend) {
|
|
/* Is it a single octet information element? */
|
|
if (*buf & 0x80) {
|
|
switch ((*buf >> 4) & 7) {
|
|
case 1:
|
|
dp += sprintf(dp, " Shift %x\n", *buf & 0xf);
|
|
cs_old = cset;
|
|
cset = *buf & 7;
|
|
cs_fest = *buf & 8;
|
|
break;
|
|
case 3:
|
|
dp += sprintf(dp, " Congestion level %x\n", *buf & 0xf);
|
|
break;
|
|
case 2:
|
|
if (*buf == 0xa0) {
|
|
dp += sprintf(dp, " More data\n");
|
|
break;
|
|
}
|
|
if (*buf == 0xa1) {
|
|
dp += sprintf(dp, " Sending complete\n");
|
|
}
|
|
break;
|
|
/* fall through */
|
|
default:
|
|
dp += sprintf(dp, " Reserved %x\n", *buf);
|
|
break;
|
|
}
|
|
buf++;
|
|
continue;
|
|
}
|
|
/* No, locate it in the table */
|
|
if (cset == 0) {
|
|
for (i = 0; i < WE_0_LEN; i++)
|
|
if (*buf == we_0[i].nr)
|
|
break;
|
|
|
|
/* When found, give appropriate msg */
|
|
if (i != WE_0_LEN) {
|
|
dp += sprintf(dp, " %s\n", we_0[i].descr);
|
|
dp += we_0[i].f(dp, buf);
|
|
} else
|
|
dp += sprintf(dp, " Codeset %d attribute %x attribute size %d\n", cset, *buf, buf[1]);
|
|
} else if (cset == 6) {
|
|
for (i = 0; i < WE_6_LEN; i++)
|
|
if (*buf == we_6[i].nr)
|
|
break;
|
|
|
|
/* When found, give appropriate msg */
|
|
if (i != WE_6_LEN) {
|
|
dp += sprintf(dp, " %s\n", we_6[i].descr);
|
|
dp += we_6[i].f(dp, buf);
|
|
} else
|
|
dp += sprintf(dp, " Codeset %d attribute %x attribute size %d\n", cset, *buf, buf[1]);
|
|
} else
|
|
dp += sprintf(dp, " Unknown Codeset %d attribute %x attribute size %d\n", cset, *buf, buf[1]);
|
|
/* Skip to next element */
|
|
if (cs_fest == 8) {
|
|
cset = cs_old;
|
|
cs_old = 0;
|
|
cs_fest = 0;
|
|
}
|
|
buf += buf[1] + 2;
|
|
}
|
|
} else if ((buf[0] == 8) && (cs->protocol == ISDN_PTYPE_NI1)) { /* NI-1 */
|
|
/* locate message type */
|
|
buf++;
|
|
cr_l = *buf++;
|
|
if (cr_l)
|
|
cr = *buf++;
|
|
else
|
|
cr = 0;
|
|
mt = *buf++;
|
|
for (i = 0; i < MTSIZE; i++)
|
|
if (mtlist[i].nr == mt)
|
|
break;
|
|
|
|
/* display message type if it exists */
|
|
if (i == MTSIZE)
|
|
dp += sprintf(dp, "callref %d %s size %d unknown message type %x!\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mt);
|
|
else
|
|
dp += sprintf(dp, "callref %d %s size %d message type %s\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mtlist[i].descr);
|
|
|
|
/* display each information element */
|
|
while (buf < bend) {
|
|
/* Is it a single octet information element? */
|
|
if (*buf & 0x80) {
|
|
switch ((*buf >> 4) & 7) {
|
|
case 1:
|
|
dp += sprintf(dp, " Shift %x\n", *buf & 0xf);
|
|
cs_old = cset;
|
|
cset = *buf & 7;
|
|
cs_fest = *buf & 8;
|
|
break;
|
|
default:
|
|
dp += sprintf(dp, " Unknown single-octet IE %x\n", *buf);
|
|
break;
|
|
}
|
|
buf++;
|
|
continue;
|
|
}
|
|
/* No, locate it in the table */
|
|
if (cset == 0) {
|
|
for (i = 0; i < IESIZE_NI1; i++)
|
|
if (*buf == ielist_ni1[i].nr)
|
|
break;
|
|
|
|
/* When not found, give appropriate msg */
|
|
if (i != IESIZE_NI1) {
|
|
dp += sprintf(dp, " %s\n", ielist_ni1[i].descr);
|
|
dp += ielist_ni1[i].f(dp, buf);
|
|
} else
|
|
dp += sprintf(dp, " attribute %x attribute size %d\n", *buf, buf[1]);
|
|
} else if (cset == 5) {
|
|
for (i = 0; i < IESIZE_NI1_CS5; i++)
|
|
if (*buf == ielist_ni1_cs5[i].nr)
|
|
break;
|
|
|
|
/* When not found, give appropriate msg */
|
|
if (i != IESIZE_NI1_CS5) {
|
|
dp += sprintf(dp, " %s\n", ielist_ni1_cs5[i].descr);
|
|
dp += ielist_ni1_cs5[i].f(dp, buf);
|
|
} else
|
|
dp += sprintf(dp, " attribute %x attribute size %d\n", *buf, buf[1]);
|
|
} else if (cset == 6) {
|
|
for (i = 0; i < IESIZE_NI1_CS6; i++)
|
|
if (*buf == ielist_ni1_cs6[i].nr)
|
|
break;
|
|
|
|
/* When not found, give appropriate msg */
|
|
if (i != IESIZE_NI1_CS6) {
|
|
dp += sprintf(dp, " %s\n", ielist_ni1_cs6[i].descr);
|
|
dp += ielist_ni1_cs6[i].f(dp, buf);
|
|
} else
|
|
dp += sprintf(dp, " attribute %x attribute size %d\n", *buf, buf[1]);
|
|
} else
|
|
dp += sprintf(dp, " Unknown Codeset %d attribute %x attribute size %d\n", cset, *buf, buf[1]);
|
|
|
|
/* Skip to next element */
|
|
if (cs_fest == 8) {
|
|
cset = cs_old;
|
|
cs_old = 0;
|
|
cs_fest = 0;
|
|
}
|
|
buf += buf[1] + 2;
|
|
}
|
|
} else if ((buf[0] == 8) && (cs->protocol == ISDN_PTYPE_EURO)) { /* EURO */
|
|
/* locate message type */
|
|
buf++;
|
|
cr_l = *buf++;
|
|
if (cr_l)
|
|
cr = *buf++;
|
|
else
|
|
cr = 0;
|
|
mt = *buf++;
|
|
for (i = 0; i < MTSIZE; i++)
|
|
if (mtlist[i].nr == mt)
|
|
break;
|
|
|
|
/* display message type if it exists */
|
|
if (i == MTSIZE)
|
|
dp += sprintf(dp, "callref %d %s size %d unknown message type %x!\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mt);
|
|
else
|
|
dp += sprintf(dp, "callref %d %s size %d message type %s\n",
|
|
cr & 0x7f, (cr & 0x80) ? "called" : "caller",
|
|
size, mtlist[i].descr);
|
|
|
|
/* display each information element */
|
|
while (buf < bend) {
|
|
/* Is it a single octet information element? */
|
|
if (*buf & 0x80) {
|
|
switch ((*buf >> 4) & 7) {
|
|
case 1:
|
|
dp += sprintf(dp, " Shift %x\n", *buf & 0xf);
|
|
break;
|
|
case 3:
|
|
dp += sprintf(dp, " Congestion level %x\n", *buf & 0xf);
|
|
break;
|
|
case 5:
|
|
dp += sprintf(dp, " Repeat indicator %x\n", *buf & 0xf);
|
|
break;
|
|
case 2:
|
|
if (*buf == 0xa0) {
|
|
dp += sprintf(dp, " More data\n");
|
|
break;
|
|
}
|
|
if (*buf == 0xa1) {
|
|
dp += sprintf(dp, " Sending complete\n");
|
|
}
|
|
break;
|
|
/* fall through */
|
|
default:
|
|
dp += sprintf(dp, " Reserved %x\n", *buf);
|
|
break;
|
|
}
|
|
buf++;
|
|
continue;
|
|
}
|
|
/* No, locate it in the table */
|
|
for (i = 0; i < IESIZE; i++)
|
|
if (*buf == ielist[i].nr)
|
|
break;
|
|
|
|
/* When not found, give appropriate msg */
|
|
if (i != IESIZE) {
|
|
dp += sprintf(dp, " %s\n", ielist[i].descr);
|
|
dp += ielist[i].f(dp, buf);
|
|
} else
|
|
dp += sprintf(dp, " attribute %x attribute size %d\n", *buf, buf[1]);
|
|
|
|
/* Skip to next element */
|
|
buf += buf[1] + 2;
|
|
}
|
|
} else {
|
|
dp += sprintf(dp, "Unknown protocol %x!", buf[0]);
|
|
}
|
|
*dp = 0;
|
|
HiSax_putstatus(cs, NULL, cs->dlog);
|
|
}
|