--- /dev/null
+/* $Id: q931.c,v 1.12.2.3 2004/01/13 14:31:26 keil Exp $
+ *
+ * code to decode ITU Q.931 call control messages
+ *
+ * Author Jan den Ouden
+ * Copyright by Jan den Ouden
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * Changelog:
+ *
+ * Pauline Middelink general improvements
+ * Beat Doebeli cause texts, display information element
+ * Karsten Keil cause texts, display information element for 1TR6
+ *
+ */
+
+
+#include "hisax.h"
+#include "l3_1tr6.h"
+
+void
+iecpy(u_char *dest, u_char *iestart, int ieoffset)
+{
+ u_char *p;
+ int l;
+
+ p = iestart + ieoffset + 2;
+ l = iestart[1] - ieoffset;
+ while (l--)
+ *dest++ = *p++;
+ *dest++ = '\0';
+}
+
+/*
+ * According to Table 4-2/Q.931
+ */
+static
+struct MessageType {
+ u_char nr;
+ char *descr;
+} mtlist[] = {
+
+ {
+ 0x1, "ALERTING"
+ },
+ {
+ 0x2, "CALL PROCEEDING"
+ },
+ {
+ 0x7, "CONNECT"
+ },
+ {
+ 0xf, "CONNECT ACKNOWLEDGE"
+ },
+ {
+ 0x3, "PROGRESS"
+ },
+ {
+ 0x5, "SETUP"
+ },
+ {
+ 0xd, "SETUP ACKNOWLEDGE"
+ },
+ {
+ 0x24, "HOLD"
+ },
+ {
+ 0x28, "HOLD ACKNOWLEDGE"
+ },
+ {
+ 0x30, "HOLD REJECT"
+ },
+ {
+ 0x31, "RETRIEVE"
+ },
+ {
+ 0x33, "RETRIEVE ACKNOWLEDGE"
+ },
+ {
+ 0x37, "RETRIEVE REJECT"
+ },
+ {
+ 0x26, "RESUME"
+ },
+ {
+ 0x2e, "RESUME ACKNOWLEDGE"
+ },
+ {
+ 0x22, "RESUME REJECT"
+ },
+ {
+ 0x25, "SUSPEND"
+ },
+ {
+ 0x2d, "SUSPEND ACKNOWLEDGE"
+ },
+ {
+ 0x21, "SUSPEND REJECT"
+ },
+ {
+ 0x20, "USER INFORMATION"
+ },
+ {
+ 0x45, "DISCONNECT"
+ },
+ {
+ 0x4d, "RELEASE"
+ },
+ {
+ 0x5a, "RELEASE COMPLETE"
+ },
+ {
+ 0x46, "RESTART"
+ },
+ {
+ 0x4e, "RESTART ACKNOWLEDGE"
+ },
+ {
+ 0x60, "SEGMENT"
+ },
+ {
+ 0x79, "CONGESTION CONTROL"
+ },
+ {
+ 0x7b, "INFORMATION"
+ },
+ {
+ 0x62, "FACILITY"
+ },
+ {
+ 0x6e, "NOTIFY"
+ },
+ {
+ 0x7d, "STATUS"
+ },
+ {
+ 0x75, "STATUS ENQUIRY"
+ }
+};
+
+#define MTSIZE ARRAY_SIZE(mtlist)
+
+static
+struct MessageType mt_n0[] =
+{
+ {MT_N0_REG_IND, "REGister INDication"},
+ {MT_N0_CANC_IND, "CANCel INDication"},
+ {MT_N0_FAC_STA, "FACility STAtus"},
+ {MT_N0_STA_ACK, "STAtus ACKnowledge"},
+ {MT_N0_STA_REJ, "STAtus REJect"},
+ {MT_N0_FAC_INF, "FACility INFormation"},
+ {MT_N0_INF_ACK, "INFormation ACKnowledge"},
+ {MT_N0_INF_REJ, "INFormation REJect"},
+ {MT_N0_CLOSE, "CLOSE"},
+ {MT_N0_CLO_ACK, "CLOse ACKnowledge"}
+};
+
+#define MT_N0_LEN ARRAY_SIZE(mt_n0)
+
+static
+struct MessageType mt_n1[] =
+{
+ {MT_N1_ESC, "ESCape"},
+ {MT_N1_ALERT, "ALERT"},
+ {MT_N1_CALL_SENT, "CALL SENT"},
+ {MT_N1_CONN, "CONNect"},
+ {MT_N1_CONN_ACK, "CONNect ACKnowledge"},
+ {MT_N1_SETUP, "SETUP"},
+ {MT_N1_SETUP_ACK, "SETUP ACKnowledge"},
+ {MT_N1_RES, "RESume"},
+ {MT_N1_RES_ACK, "RESume ACKnowledge"},
+ {MT_N1_RES_REJ, "RESume REJect"},
+ {MT_N1_SUSP, "SUSPend"},
+ {MT_N1_SUSP_ACK, "SUSPend ACKnowledge"},
+ {MT_N1_SUSP_REJ, "SUSPend REJect"},
+ {MT_N1_USER_INFO, "USER INFO"},
+ {MT_N1_DET, "DETach"},
+ {MT_N1_DISC, "DISConnect"},
+ {MT_N1_REL, "RELease"},
+ {MT_N1_REL_ACK, "RELease ACKnowledge"},
+ {MT_N1_CANC_ACK, "CANCel ACKnowledge"},
+ {MT_N1_CANC_REJ, "CANCel REJect"},
+ {MT_N1_CON_CON, "CONgestion CONtrol"},
+ {MT_N1_FAC, "FACility"},
+ {MT_N1_FAC_ACK, "FACility ACKnowledge"},
+ {MT_N1_FAC_CAN, "FACility CANcel"},
+ {MT_N1_FAC_REG, "FACility REGister"},
+ {MT_N1_FAC_REJ, "FACility REJect"},
+ {MT_N1_INFO, "INFOrmation"},
+ {MT_N1_REG_ACK, "REGister ACKnowledge"},
+ {MT_N1_REG_REJ, "REGister REJect"},
+ {MT_N1_STAT, "STATus"}
+};
+
+#define MT_N1_LEN ARRAY_SIZE(mt_n1)
+
+
+static int
+prbits(char *dest, u_char b, int start, int len)
+{
+ char *dp = dest;
+
+ b = b << (8 - start);
+ while (len--) {
+ if (b & 0x80)
+ *dp++ = '1';
+ else
+ *dp++ = '0';
+ b = b << 1;
+ }
+ return (dp - dest);
+}
+
+static
+u_char *
+skipext(u_char *p)
+{
+ while (!(*p++ & 0x80));
+ return (p);
+}
+
+/*
+ * Cause Values According to Q.850
+ * edescr: English description
+ * ddescr: German description used by Swissnet II (Swiss Telecom
+ * not yet written...
+ */
+
+static
+struct CauseValue {
+ u_char nr;
+ char *edescr;
+ char *ddescr;
+} cvlist[] = {
+
+ {
+ 0x01, "Unallocated (unassigned) number", "Nummer nicht zugeteilt"
+ },
+ {
+ 0x02, "No route to specified transit network", ""
+ },
+ {
+ 0x03, "No route to destination", ""
+ },
+ {
+ 0x04, "Send special information tone", ""
+ },
+ {
+ 0x05, "Misdialled trunk prefix", ""
+ },
+ {
+ 0x06, "Channel unacceptable", "Kanal nicht akzeptierbar"
+ },
+ {
+ 0x07, "Channel awarded and being delivered in an established channel", ""
+ },
+ {
+ 0x08, "Preemption", ""
+ },
+ {
+ 0x09, "Preemption - circuit reserved for reuse", ""
+ },
+ {
+ 0x10, "Normal call clearing", "Normale Ausloesung"
+ },
+ {
+ 0x11, "User busy", "TNB besetzt"
+ },
+ {
+ 0x12, "No user responding", ""
+ },
+ {
+ 0x13, "No answer from user (user alerted)", ""
+ },
+ {
+ 0x14, "Subscriber absent", ""
+ },
+ {
+ 0x15, "Call rejected", ""
+ },
+ {
+ 0x16, "Number changed", ""
+ },
+ {
+ 0x1a, "non-selected user clearing", ""
+ },
+ {
+ 0x1b, "Destination out of order", ""
+ },
+ {
+ 0x1c, "Invalid number format (address incomplete)", ""
+ },
+ {
+ 0x1d, "Facility rejected", ""
+ },
+ {
+ 0x1e, "Response to Status enquiry", ""
+ },
+ {
+ 0x1f, "Normal, unspecified", ""
+ },
+ {
+ 0x22, "No circuit/channel available", ""
+ },
+ {
+ 0x26, "Network out of order", ""
+ },
+ {
+ 0x27, "Permanent frame mode connection out-of-service", ""
+ },
+ {
+ 0x28, "Permanent frame mode connection operational", ""
+ },
+ {
+ 0x29, "Temporary failure", ""
+ },
+ {
+ 0x2a, "Switching equipment congestion", ""
+ },
+ {
+ 0x2b, "Access information discarded", ""
+ },
+ {
+ 0x2c, "Requested circuit/channel not available", ""
+ },
+ {
+ 0x2e, "Precedence call blocked", ""
+ },
+ {
+ 0x2f, "Resource unavailable, unspecified", ""
+ },
+ {
+ 0x31, "Quality of service unavailable", ""
+ },
+ {
+ 0x32, "Requested facility not subscribed", ""
+ },
+ {
+ 0x35, "Outgoing calls barred within CUG", ""
+ },
+ {
+ 0x37, "Incoming calls barred within CUG", ""
+ },
+ {
+ 0x39, "Bearer capability not authorized", ""
+ },
+ {
+ 0x3a, "Bearer capability not presently available", ""
+ },
+ {
+ 0x3e, "Inconsistency in designated outgoing access information and subscriber class ", " "
+ },
+ {
+ 0x3f, "Service or option not available, unspecified", ""
+ },
+ {
+ 0x41, "Bearer capability not implemented", ""
+ },
+ {
+ 0x42, "Channel type not implemented", ""
+ },
+ {
+ 0x43, "Requested facility not implemented", ""
+ },
+ {
+ 0x44, "Only restricted digital information bearer capability is available", ""
+ },
+ {
+ 0x4f, "Service or option not implemented", ""
+ },
+ {
+ 0x51, "Invalid call reference value", ""
+ },
+ {
+ 0x52, "Identified channel does not exist", ""
+ },
+ {
+ 0x53, "A suspended call exists, but this call identity does not", ""
+ },
+ {
+ 0x54, "Call identity in use", ""
+ },
+ {
+ 0x55, "No call suspended", ""
+ },
+ {
+ 0x56, "Call having the requested call identity has been cleared", ""
+ },
+ {
+ 0x57, "User not member of CUG", ""
+ },
+ {
+ 0x58, "Incompatible destination", ""
+ },
+ {
+ 0x5a, "Non-existent CUG", ""
+ },
+ {
+ 0x5b, "Invalid transit network selection", ""
+ },
+ {
+ 0x5f, "Invalid message, unspecified", ""
+ },
+ {
+ 0x60, "Mandatory information element is missing", ""
+ },
+ {
+ 0x61, "Message type non-existent or not implemented", ""
+ },
+ {
+ 0x62, "Message not compatible with call state or message type non-existent or not implemented ", " "
+ },
+ {
+ 0x63, "Information element/parameter non-existent or not implemented", ""
+ },
+ {
+ 0x64, "Invalid information element contents", ""
+ },
+ {
+ 0x65, "Message not compatible with call state", ""
+ },
+ {
+ 0x66, "Recovery on timer expiry", ""
+ },
+ {
+ 0x67, "Parameter non-existent or not implemented - passed on", ""
+ },
+ {
+ 0x6e, "Message with unrecognized parameter discarded", ""
+ },
+ {
+ 0x6f, "Protocol error, unspecified", ""
+ },
+ {
+ 0x7f, "Interworking, unspecified", ""
+ },
+};
+
+#define CVSIZE ARRAY_SIZE(cvlist)
+
+static
+int
+prcause(char *dest, u_char *p)
+{
+ u_char *end;
+ char *dp = dest;
+ int i, cause;
+
+ end = p + p[1] + 1;
+ p += 2;
+ dp += sprintf(dp, " coding ");
+ dp += prbits(dp, *p, 7, 2);
+ dp += sprintf(dp, " location ");
+ dp += prbits(dp, *p, 4, 4);
+ *dp++ = '\n';
+ p = skipext(p);
+
+ cause = 0x7f & *p++;
+
+ /* locate cause value */
+ for (i = 0; i < CVSIZE; i++)
+ if (cvlist[i].nr == cause)
+ break;
+
+ /* display cause value if it exists */
+ if (i == CVSIZE)
+ dp += sprintf(dp, "Unknown cause type %x!\n", cause);
+ else
+ dp += sprintf(dp, " cause value %x : %s \n", cause, cvlist[i].edescr);
+
+ while (!0) {
+ if (p > end)
+ break;
+ dp += sprintf(dp, " diag attribute %d ", *p++ & 0x7f);
+ dp += sprintf(dp, " rej %d ", *p & 0x7f);
+ if (*p & 0x80) {
+ *dp++ = '\n';
+ break;
+ } else
+ dp += sprintf(dp, " av %d\n", (*++p) & 0x7f);
+ }
+ return (dp - dest);
+
+}
+
+static
+struct MessageType cause_1tr6[] =
+{
+ {CAUSE_InvCRef, "Invalid Call Reference"},
+ {CAUSE_BearerNotImpl, "Bearer Service Not Implemented"},
+ {CAUSE_CIDunknown, "Caller Identity unknown"},
+ {CAUSE_CIDinUse, "Caller Identity in Use"},
+ {CAUSE_NoChans, "No Channels available"},
+ {CAUSE_FacNotImpl, "Facility Not Implemented"},
+ {CAUSE_FacNotSubscr, "Facility Not Subscribed"},
+ {CAUSE_OutgoingBarred, "Outgoing calls barred"},
+ {CAUSE_UserAccessBusy, "User Access Busy"},
+ {CAUSE_NegativeGBG, "Negative GBG"},
+ {CAUSE_UnknownGBG, "Unknown GBG"},
+ {CAUSE_NoSPVknown, "No SPV known"},
+ {CAUSE_DestNotObtain, "Destination not obtainable"},
+ {CAUSE_NumberChanged, "Number changed"},
+ {CAUSE_OutOfOrder, "Out Of Order"},
+ {CAUSE_NoUserResponse, "No User Response"},
+ {CAUSE_UserBusy, "User Busy"},
+ {CAUSE_IncomingBarred, "Incoming Barred"},
+ {CAUSE_CallRejected, "Call Rejected"},
+ {CAUSE_NetworkCongestion, "Network Congestion"},
+ {CAUSE_RemoteUser, "Remote User initiated"},
+ {CAUSE_LocalProcErr, "Local Procedure Error"},
+ {CAUSE_RemoteProcErr, "Remote Procedure Error"},
+ {CAUSE_RemoteUserSuspend, "Remote User Suspend"},
+ {CAUSE_RemoteUserResumed, "Remote User Resumed"},
+ {CAUSE_UserInfoDiscarded, "User Info Discarded"}
+};
+
+static int cause_1tr6_len = ARRAY_SIZE(cause_1tr6);
+
+static int
+prcause_1tr6(char *dest, u_char *p)
+{
+ char *dp = dest;
+ int i, cause;
+
+ p++;
+ if (0 == *p) {
+ dp += sprintf(dp, " OK (cause length=0)\n");
+ return (dp - dest);
+ } else if (*p > 1) {
+ dp += sprintf(dp, " coding ");
+ dp += prbits(dp, p[2], 7, 2);
+ dp += sprintf(dp, " location ");
+ dp += prbits(dp, p[2], 4, 4);
+ *dp++ = '\n';
+ }
+ p++;
+ cause = 0x7f & *p;
+
+ /* locate cause value */
+ for (i = 0; i < cause_1tr6_len; i++)
+ if (cause_1tr6[i].nr == cause)
+ break;
+
+ /* display cause value if it exists */
+ if (i == cause_1tr6_len)
+ dp += sprintf(dp, "Unknown cause type %x!\n", cause);
+ else
+ dp += sprintf(dp, " cause value %x : %s \n", cause, cause_1tr6[i].descr);
+
+ return (dp - dest);
+
+}
+
+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++ & 0x80)) {
+ 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 ARRAY_SIZE(dtaglist)
+
+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 ARRAY_SIZE(ielist)
+
+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 ARRAY_SIZE(ielist_ni1)
+
+static
+struct InformationElement ielist_ni1_cs5[] = {
+ { 0x1d, "Operator system access", general_ni1 },
+ { 0x2a, "Display text", disptext_ni1 },
+};
+
+#define IESIZE_NI1_CS5 ARRAY_SIZE(ielist_ni1_cs5)
+
+static
+struct InformationElement ielist_ni1_cs6[] = {
+ { 0x7b, "Call appearance", general_ni1 },
+};
+
+#define IESIZE_NI1_CS6 ARRAY_SIZE(ielist_ni1_cs6)
+
+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 ARRAY_SIZE(we_0)
+
+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 ARRAY_SIZE(we_6)
+
+int
+QuickHex(char *txt, u_char *p, int cnt)
+{
+ register int i;
+ register char *t = txt;
+
+ for (i = 0; i < cnt; i++) {
+ *t++ = ' ';
+ *t++ = hex_asc_hi(p[i]);
+ *t++ = hex_asc_lo(p[i]);
+ }
+ *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, "%s", 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, "%s", 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, "%s", cs->dlog);
+}
Code Review / kvmfornfv.git / blobdiff