X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fisdn%2Fhisax%2Fq931.c;fp=kernel%2Fdrivers%2Fisdn%2Fhisax%2Fq931.c;h=b420f8bd862e454df2cc08f4da84b8bc7ef76e57;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/isdn/hisax/q931.c b/kernel/drivers/isdn/hisax/q931.c
new file mode 100644
index 000000000..b420f8bd8
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/q931.c
@@ -0,0 +1,1513 @@
+/* $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);
+}