diff --git a/lib/decoding/osmocom/gsm/gsm48_ie.c b/lib/decoding/osmocom/gsm/gsm48_ie.c
new file mode 100644
index 0000000..3881b18
--- /dev/null
+++ b/lib/decoding/osmocom/gsm/gsm48_ie.c
@@ -0,0 +1,1247 @@
+/*! \file gsm48_ie.c
+ * GSM Mobile Radio Interface Layer 3 messages.
+ * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0. */
+/*
+ * (C) 2008 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009-2010 by Andreas Eversberg
+ *
+ * All Rights Reserved
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#include <osmocom/core/utils.h>
+/*#include <osmocom/core/msgb.h>*/
+/* #include <osmocom/gsm/tlv.h> */
+/* #include <osmocom/gsm/mncc.h> */
+#include <osmocom/gsm/protocol/gsm_04_08.h>
+#include <osmocom/gsm/gsm48_ie.h>
+
+/*! \addtogroup gsm0408
+ *  @{
+ */
+
+//static const char bcd_num_digits[] = {
+//	'0', '1', '2', '3', '4', '5', '6', '7',
+//	'8', '9', '*', '#', 'a', 'b', 'c', '\0'
+//};
+
+///*! decode a 'called/calling/connect party BCD number' as in 10.5.4.7
+// *  \param[out] Caller-provided output buffer
+// *  \param[in] bcd_lv Length-Value portion of to-be-decoded IE
+// *  \param[in] h_len Length of an optional heder between L and V portion
+// *  \returns - in case of success; negative on error */
+//int gsm48_decode_bcd_number(char *output, int output_len,
+//			    const uint8_t *bcd_lv, int h_len)
+//{
+//	uint8_t in_len = bcd_lv[0];
+//	int i;
+
+//	for (i = 1 + h_len; i <= in_len; i++) {
+//		/* lower nibble */
+//		output_len--;
+//		if (output_len <= 1)
+//			break;
+//		*output++ = bcd_num_digits[bcd_lv[i] & 0xf];
+
+//		/* higher nibble */
+//		output_len--;
+//		if (output_len <= 1)
+//			break;
+//		*output++ = bcd_num_digits[bcd_lv[i] >> 4];
+//	}
+//	if (output_len >= 1)
+//		*output++ = '\0';
+
+//	return 0;
+//}
+
+///*! convert a single ASCII character to call-control BCD */
+//static int asc_to_bcd(const char asc)
+//{
+//	int i;
+
+//	for (i = 0; i < ARRAY_SIZE(bcd_num_digits); i++) {
+//		if (bcd_num_digits[i] == asc)
+//			return i;
+//	}
+//	return -EINVAL;
+//}
+
+///*! convert a ASCII phone number to 'called/calling/connect party BCD number'
+// *  \param[out] bcd_lv Caller-provided output buffer
+// *  \param[in] max_len Maximum Length of \a bcd_lv
+// *  \param[in] h_len Length of an optional heder between L and V portion
+// *  \param[in] input phone number as 0-terminated ASCII
+// *  \returns number of bytes used in \a bcd_lv */
+//int gsm48_encode_bcd_number(uint8_t *bcd_lv, uint8_t max_len,
+//		      int h_len, const char *input)
+//{
+//	int in_len = strlen(input);
+//	int i;
+//	uint8_t *bcd_cur = bcd_lv + 1 + h_len;
+
+//	/* two digits per byte, plus type byte */
+//	bcd_lv[0] = in_len/2 + h_len;
+//	if (in_len % 2)
+//		bcd_lv[0]++;
+
+//	if (bcd_lv[0] > max_len)
+//		return -EIO;
+
+//	for (i = 0; i < in_len; i++) {
+//		int rc = asc_to_bcd(input[i]);
+//		if (rc < 0)
+//			return rc;
+//		if (i % 2 == 0)
+//			*bcd_cur = rc;
+//		else
+//			*bcd_cur++ |= (rc << 4);
+//	}
+//	/* append padding nibble in case of odd length */
+//	if (i % 2)
+//		*bcd_cur++ |= 0xf0;
+
+//	/* return how many bytes we used */
+//	return (bcd_cur - bcd_lv);
+//}
+
+///*! Decode TS 04.08 Bearer Capability IE (10.5.4.5)
+// *  \param[out] Caller-provided memory for decoded output
+// *  \[aram[in] LV portion of TS 04.08 Bearer Capability
+// *  \returns 0 on success; negative on error */
+//int gsm48_decode_bearer_cap(struct gsm_mncc_bearer_cap *bcap,
+//			     const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+//	int i, s;
+
+//	if (in_len < 1)
+//		return -EINVAL;
+
+//	bcap->speech_ver[0] = -1; /* end of list, of maximum 7 values */
+
+//	/* octet 3 */
+//	bcap->transfer = lv[1] & 0x07;
+//	bcap->mode = (lv[1] & 0x08) >> 3;
+//	bcap->coding = (lv[1] & 0x10) >> 4;
+//	bcap->radio = (lv[1] & 0x60) >> 5;
+
+//	switch (bcap->transfer) {
+//	case GSM_MNCC_BCAP_SPEECH:
+//		i = 1;
+//		s = 0;
+//		while(!(lv[i] & 0x80)) {
+//			i++; /* octet 3a etc */
+//			if (in_len < i)
+//				return 0;
+//			bcap->speech_ver[s++] = lv[i] & 0x0f;
+//			bcap->speech_ver[s] = -1; /* end of list */
+//			if (i == 2) /* octet 3a */
+//				bcap->speech_ctm = (lv[i] & 0x20) >> 5;
+//			if (s == 7) /* maximum speech versions + end of list */
+//				return 0;
+//		}
+//		break;
+//	case GSM_MNCC_BCAP_UNR_DIG:
+//	case GSM_MNCC_BCAP_FAX_G3:
+//		i = 1;
+//		while(!(lv[i] & 0x80)) {
+//			i++; /* octet 3a etc */
+//			if (in_len < i)
+//				return 0;
+//			/* ignore them */
+//		}
+//		/* octet 4: skip */
+//		i++;
+//		/* octet 5 */
+//		i++;
+//		if (in_len < i)
+//			return 0;
+//		bcap->data.rate_adaption = (lv[i] >> 3) & 3;
+//		bcap->data.sig_access = lv[i] & 7;
+//		while(!(lv[i] & 0x80)) {
+//			i++; /* octet 5a etc */
+//			if (in_len < i)
+//				return 0;
+//			/* ignore them */
+//		}
+//		/* octet 6 */
+//		i++;
+//		if (in_len < i)
+//			return 0;
+//		bcap->data.async = lv[i] & 1;
+//		if (!(lv[i] & 0x80)) {
+//			i++;
+//			if (in_len < i)
+//				return 0;
+//			/* octet 6a */
+//			bcap->data.nr_stop_bits = ((lv[i] >> 7) & 1) + 1;
+//			if (lv[i] & 0x10)
+//				bcap->data.nr_data_bits = 8;
+//			else
+//				bcap->data.nr_data_bits = 7;
+//			bcap->data.user_rate = lv[i]  & 0xf;
+
+//			if (!(lv[i] & 0x80)) {
+//				i++;
+//				if (in_len < i)
+//					return 0;
+//				/* octet 6b */
+//				bcap->data.parity = lv[i] & 7;
+//				bcap->data.interm_rate = (lv[i] >> 5) & 3;
+
+//				/* octet 6c */
+//				if (!(lv[i] & 0x80)) {
+//					i++;
+//					if (in_len < i)
+//						return 0;
+//					bcap->data.transp = (lv[i] >> 5) & 3;
+//					bcap->data.modem_type = lv[i] & 0x1F;
+//				}
+//			}
+
+//		}
+//		break;
+//	default:
+//		i = 1;
+//		while (!(lv[i] & 0x80)) {
+//			i++; /* octet 3a etc */
+//			if (in_len < i)
+//				return 0;
+//			/* ignore them */
+//		}
+//		/* FIXME: implement OCTET 4+ parsing */
+//		break;
+//	}
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Bearer Capability IE (10.5.4.5)
+// *  \param[out] msg Message Buffer to which IE is to be appended
+// *  \param[in] lv_only Write only LV portion (1) or TLV (0)
+// *  \param[in] bcap Decoded Bearer Capability to be encoded
+// *  \returns 0 on success; negative on error */
+//int gsm48_encode_bearer_cap(struct msgb *msg, int lv_only,
+//			     const struct gsm_mncc_bearer_cap *bcap)
+//{
+//	uint8_t lv[32 + 1];
+//	int i = 1, s;
+
+//	lv[1] = bcap->transfer;
+//	lv[1] |= bcap->mode << 3;
+//	lv[1] |= bcap->coding << 4;
+//	lv[1] |= bcap->radio << 5;
+
+//	switch (bcap->transfer) {
+//	case GSM_MNCC_BCAP_SPEECH:
+//		for (s = 0; bcap->speech_ver[s] >= 0; s++) {
+//			i++; /* octet 3a etc */
+//			lv[i] = bcap->speech_ver[s];
+//			if (i == 2) /* octet 3a */
+//				lv[i] |= bcap->speech_ctm << 5;
+//		}
+//		lv[i] |= 0x80; /* last IE of octet 3 etc */
+//		break;
+//	case GSM48_BCAP_ITCAP_UNR_DIG_INF:
+//	case GSM48_BCAP_ITCAP_FAX_G3:
+//		lv[i++] |= 0x80; /* last IE of octet 3 etc */
+//		/* octet 4 */
+//		lv[i++] = 0xb8;
+//		/* octet 5 */
+//		lv[i++] = 0x80 | ((bcap->data.rate_adaption & 3) << 3)
+//			  | (bcap->data.sig_access & 7);
+//		/* octet 6 */
+//		lv[i++] = 0x20 | (bcap->data.async & 1);
+//		/* octet 6a */
+//		lv[i++] = (bcap->data.user_rate & 0xf) |
+//			  (bcap->data.nr_data_bits == 8 ? 0x10 : 0x00) |
+//			  (bcap->data.nr_stop_bits == 2 ? 0x40 : 0x00);
+//		/* octet 6b */
+//		lv[i++] = (bcap->data.parity & 7) |
+//			  ((bcap->data.interm_rate & 3) << 5);
+//		/* octet 6c */
+//		lv[i] = 0x80 | (bcap->data.modem_type & 0x1f);
+//		break;
+//	default:
+//		return -EINVAL;
+//	}
+
+//	lv[0] = i;
+//	if (lv_only)
+//		msgb_lv_put(msg, lv[0], lv+1);
+//	else
+//		msgb_tlv_put(msg, GSM48_IE_BEARER_CAP, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Call Control Capabilities IE (10.5.4.5a)
+// *  \param[out] Caller-provided memory for decoded CC capabilities
+// *  \param[in] lv Length-Value of IE
+// *  \retursns 0 on success; negative on error */
+//int gsm48_decode_cccap(struct gsm_mncc_cccap *ccap, const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+
+//	if (in_len < 1)
+//		return -EINVAL;
+
+//	/* octet 3 */
+//	ccap->dtmf = lv[1] & 0x01;
+//	ccap->pcp = (lv[1] & 0x02) >> 1;
+
+//	return 0;
+//}
+
+///*! Encodoe TS 04.08 Call Control Capabilities (10.5.4.5a)
+// *  \param[out] msg Message Buffer to which to append IE (as TLV)
+// *  \param[in] ccap Decoded CC Capabilities to be encoded
+// *  \returns 0 on success; negative on error */
+//int gsm48_encode_cccap(struct msgb *msg,
+//			const struct gsm_mncc_cccap *ccap)
+//{
+//	uint8_t lv[2];
+
+//	lv[0] = 1;
+//	lv[1] = 0;
+//	if (ccap->dtmf)
+//		lv [1] |= 0x01;
+//	if (ccap->pcp)
+//		lv [1] |= 0x02;
+
+//	msgb_tlv_put(msg, GSM48_IE_CC_CAP, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Called Party BCD Number IE (10.5.4.7)
+// *  \param[out] called Caller-provided memory for decoded number
+// *  \param[in] lv Length-Value portion of IE
+// *  \returns 0 on success; negative on error */
+//int gsm48_decode_called(struct gsm_mncc_number *called,
+//			 const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+
+//	if (in_len < 1)
+//		return -EINVAL;
+
+//	/* octet 3 */
+//	called->plan = lv[1] & 0x0f;
+//	called->type = (lv[1] & 0x70) >> 4;
+
+//	/* octet 4..N */
+//	gsm48_decode_bcd_number(called->number, sizeof(called->number), lv, 1);
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Called Party IE (10.5.4.7)
+// *  \param[out] msg Mesage Buffer to which to append IE (as TLV)
+// *  \param[in] called MNCC Number to encode/append
+// *  \returns 0 on success; negative on error */
+//int gsm48_encode_called(struct msgb *msg,
+//			 const struct gsm_mncc_number *called)
+//{
+//	uint8_t lv[18];
+//	int ret;
+
+//	/* octet 3 */
+//	lv[1] = 0x80; /* no extension */
+//	lv[1] |= called->plan;
+//	lv[1] |= called->type << 4;
+
+//	/* octet 4..N, octet 2 */
+//	ret = gsm48_encode_bcd_number(lv, sizeof(lv), 1, called->number);
+//	if (ret < 0)
+//		return ret;
+
+//	msgb_tlv_put(msg, GSM48_IE_CALLED_BCD, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Caller ID
+// *  \param[out] called Caller-provided memory for decoded number
+// *  \param[in] lv Length-Value portion of IE
+// *  \returns 0 on success; negative on error */
+//int gsm48_decode_callerid(struct gsm_mncc_number *callerid,
+//			 const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+//	int i = 1;
+
+//	if (in_len < 1)
+//		return -EINVAL;
+
+//	/* octet 3 */
+//	callerid->plan = lv[1] & 0x0f;
+//	callerid->type = (lv[1] & 0x70) >> 4;
+
+//	/* octet 3a */
+//	if (!(lv[1] & 0x80)) {
+//		callerid->screen = lv[2] & 0x03;
+//		callerid->present = (lv[2] & 0x60) >> 5;
+//		i = 2;
+//	}
+
+//	/* octet 4..N */
+//	gsm48_decode_bcd_number(callerid->number, sizeof(callerid->number), lv, i);
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Caller ID IE
+// *  \param[out] msg Mesage Buffer to which to append IE (as TLV)
+// *  \param[in] ie IE Identifier (tag)
+// *  \param[in] max_len maximum generated output in bytes
+// *  \param[in] callerid MNCC Number to encode/append
+// *  \returns 0 on success; negative on error */
+//int gsm48_encode_callerid(struct msgb *msg, int ie, int max_len,
+//			   const struct gsm_mncc_number *callerid)
+//{
+//	uint8_t * lv = malloc(sizeof(uint8_t)*(max_len - 1));
+//	int h_len = 1;
+//	int ret;
+
+//	/* octet 3 */
+//	lv[1] = callerid->plan;
+//	lv[1] |= callerid->type << 4;
+
+//	if (callerid->present || callerid->screen) {
+//		/* octet 3a */
+//		lv[2] = callerid->screen;
+//		lv[2] |= callerid->present << 5;
+//		lv[2] |= 0x80;
+//		h_len++;
+//	} else
+//		lv[1] |= 0x80;
+
+//	/* octet 4..N, octet 2 */
+//	ret = gsm48_encode_bcd_number(lv, sizeof(lv), h_len, callerid->number);
+//	if (ret < 0)
+//		return ret;
+
+//	msgb_tlv_put(msg, ie, lv[0], lv+1);
+//	free(lv);
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Cause IE (10.5.4.11)
+// *  \param[out] cause Caller-provided memory for output
+// *  \param[in] lv LV portion of Cause IE
+// *  \returns 0 on success; negative on error */
+//int gsm48_decode_cause(struct gsm_mncc_cause *cause,
+//			const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+//	int i;
+
+//	if (in_len < 2)
+//		return -EINVAL;
+
+//	cause->diag_len = 0;
+
+//	/* octet 3 */
+//	cause->location = lv[1] & 0x0f;
+//	cause->coding = (lv[1] & 0x60) >> 5;
+
+//	i = 1;
+//	if (!(lv[i] & 0x80)) {
+//		i++; /* octet 3a */
+//		if (in_len < i+1)
+//			return 0;
+//		cause->rec = 1;
+//		cause->rec_val = lv[i] & 0x7f;
+//	}
+//	i++;
+
+//	/* octet 4 */
+//	cause->value = lv[i] & 0x7f;
+//	i++;
+
+//	if (in_len < i) /* no diag */
+//		return 0;
+
+//	if (in_len - (i-1) > 32) /* maximum 32 octets */
+//		return 0;
+
+//	/* octet 5-N */
+//	memcpy(cause->diag, lv + i, in_len - (i-1));
+//	cause->diag_len = in_len - (i-1);
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Cause IE (10.5.4.11)
+// *  \param[out] msg Message Buffer to which to append IE
+// *  \param[in] lv_only Encode as LV (1) or TLV (0)
+// *  \param[in] cause Cause value to be encoded
+// *  \returns 0 on success; negative on error */
+//int gsm48_encode_cause(struct msgb *msg, int lv_only,
+//			const struct gsm_mncc_cause *cause)
+//{
+//	uint8_t lv[32+4];
+//	int i;
+
+//	if (cause->diag_len > 32)
+//		return -EINVAL;
+
+//	/* octet 3 */
+//	lv[1] = cause->location;
+//	lv[1] |= cause->coding << 5;
+
+//	i = 1;
+//	if (cause->rec) {
+//		i++; /* octet 3a */
+//		lv[i] = cause->rec_val;
+//	}
+//	lv[i] |= 0x80; /* end of octet 3 */
+
+//	/* octet 4 */
+//	i++;
+//	lv[i] = 0x80 | cause->value;
+
+//	/* octet 5-N */
+//	if (cause->diag_len) {
+//		memcpy(lv + i, cause->diag, cause->diag_len);
+//		i += cause->diag_len;
+//	}
+
+//	lv[0] = i;
+//	if (lv_only)
+//		msgb_lv_put(msg, lv[0], lv+1);
+//	else
+//		msgb_tlv_put(msg, GSM48_IE_CAUSE, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Calling Number IE (10.5.4.9) */
+//int gsm48_decode_calling(struct gsm_mncc_number *calling,
+//			 const uint8_t *lv)
+//{
+//	return gsm48_decode_callerid(calling, lv);
+//}
+
+///*! Encode TS 04.08 Calling Number IE (10.5.4.9) */
+//int gsm48_encode_calling(struct msgb *msg, 
+//			  const struct gsm_mncc_number *calling)
+//{
+//	return gsm48_encode_callerid(msg, GSM48_IE_CALLING_BCD, 14, calling);
+//}
+
+///*! Decode TS 04.08 Connected Number IE (10.5.4.13) */
+//int gsm48_decode_connected(struct gsm_mncc_number *connected,
+//			 const uint8_t *lv)
+//{
+//	return gsm48_decode_callerid(connected, lv);
+//}
+
+///*! Encode TS 04.08 Connected Number IE (10.5.4.13) */
+//int gsm48_encode_connected(struct msgb *msg,
+//			    const struct gsm_mncc_number *connected)
+//{
+//	return gsm48_encode_callerid(msg, GSM48_IE_CONN_BCD, 14, connected);
+//}
+
+///*! Decode TS 04.08 Redirecting Number IE (10.5.4.21b) */
+//int gsm48_decode_redirecting(struct gsm_mncc_number *redirecting,
+//			 const uint8_t *lv)
+//{
+//	return gsm48_decode_callerid(redirecting, lv);
+//}
+
+///*! Encode TS 04.08 Redirecting Number IE (10.5.4.21b) */
+//int gsm48_encode_redirecting(struct msgb *msg,
+//			      const struct gsm_mncc_number *redirecting)
+//{
+//	return gsm48_encode_callerid(msg, GSM48_IE_REDIR_BCD, 19, redirecting);
+//}
+
+///*! Decode TS 04.08 Facility IE (10.5.4.15) */
+//int gsm48_decode_facility(struct gsm_mncc_facility *facility,
+//			   const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+
+//	if (in_len < 1)
+//		return -EINVAL;
+
+//	if (in_len > sizeof(facility->info))
+//		return -EINVAL;
+
+//	memcpy(facility->info, lv+1, in_len);
+//	facility->len = in_len;
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Facility IE (10.5.4.15) */
+//int gsm48_encode_facility(struct msgb *msg, int lv_only,
+//			   const struct gsm_mncc_facility *facility)
+//{
+//	uint8_t lv[GSM_MAX_FACILITY + 1];
+
+//	if (facility->len < 1 || facility->len > GSM_MAX_FACILITY)
+//		return -EINVAL;
+
+//	memcpy(lv+1, facility->info, facility->len);
+//	lv[0] = facility->len;
+//	if (lv_only)
+//		msgb_lv_put(msg, lv[0], lv+1);
+//	else
+//		msgb_tlv_put(msg, GSM48_IE_FACILITY, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Notify IE (10.5.4.20) */
+//int gsm48_decode_notify(int *notify, const uint8_t *v)
+//{
+//	*notify = v[0] & 0x7f;
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Notify IE (10.5.4.20) */
+//int gsm48_encode_notify(struct msgb *msg, int notify)
+//{
+//	msgb_v_put(msg, notify | 0x80);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Signal IE (10.5.4.23) */
+//int gsm48_decode_signal(int *signal, const uint8_t *v)
+//{
+//	*signal = v[0];
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Signal IE (10.5.4.23) */
+//int gsm48_encode_signal(struct msgb *msg, int signal)
+//{
+//	msgb_tv_put(msg, GSM48_IE_SIGNAL, signal);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Keypad IE (10.5.4.17) */
+//int gsm48_decode_keypad(int *keypad, const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+
+//	if (in_len < 1)
+//		return -EINVAL;
+
+//	*keypad = lv[1] & 0x7f;
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Keypad IE (10.5.4.17) */
+//int gsm48_encode_keypad(struct msgb *msg, int keypad)
+//{
+//	msgb_tv_put(msg, GSM48_IE_KPD_FACILITY, keypad);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 Progress IE (10.5.4.21) */
+//int gsm48_decode_progress(struct gsm_mncc_progress *progress,
+//			   const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+
+//	if (in_len < 2)
+//		return -EINVAL;
+
+//	progress->coding = (lv[1] & 0x60) >> 5;
+//	progress->location = lv[1] & 0x0f;
+//	progress->descr = lv[2] & 0x7f;
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 Progress IE (10.5.4.21) */
+//int gsm48_encode_progress(struct msgb *msg, int lv_only,
+//			   const struct gsm_mncc_progress *p)
+//{
+//	uint8_t lv[3];
+
+//	lv[0] = 2;
+//	lv[1] = 0x80 | ((p->coding & 0x3) << 5) | (p->location & 0xf);
+//	lv[2] = 0x80 | (p->descr & 0x7f);
+//	if (lv_only)
+//		msgb_lv_put(msg, lv[0], lv+1);
+//	else
+//		msgb_tlv_put(msg, GSM48_IE_PROGR_IND, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 User-User IE (10.5.4.25) */
+//int gsm48_decode_useruser(struct gsm_mncc_useruser *uu,
+//			   const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+//	char *info = uu->info;
+//	int info_len = sizeof(uu->info);
+//	int i;
+
+//	if (in_len < 1)
+//		return -EINVAL;
+
+//	uu->proto = lv[1];
+
+//	for (i = 2; i <= in_len; i++) {
+//		info_len--;
+//		if (info_len <= 1)
+//			break;
+//		*info++ = lv[i];
+//	}
+//	if (info_len >= 1)
+//		*info++ = '\0';
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 User-User IE (10.5.4.25) */
+//int gsm48_encode_useruser(struct msgb *msg, int lv_only,
+//			   const struct gsm_mncc_useruser *uu)
+//{
+//	uint8_t lv[GSM_MAX_USERUSER + 2];
+
+//	if (strlen(uu->info) > GSM_MAX_USERUSER)
+//		return -EINVAL;
+
+//	lv[0] = 1 + strlen(uu->info);
+//	lv[1] = uu->proto;
+//	memcpy(lv + 2, uu->info, strlen(uu->info));
+//	if (lv_only)
+//		msgb_lv_put(msg, lv[0], lv+1);
+//	else
+//		msgb_tlv_put(msg, GSM48_IE_USER_USER, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///*! Decode TS 04.08 SS Version IE (10.5.4.24) */
+//int gsm48_decode_ssversion(struct gsm_mncc_ssversion *ssv,
+//			    const uint8_t *lv)
+//{
+//	uint8_t in_len = lv[0];
+
+//	if (in_len < 1 || in_len < sizeof(ssv->info))
+//		return -EINVAL;
+
+//	memcpy(ssv->info, lv + 1, in_len);
+//	ssv->len = in_len;
+
+//	return 0;
+//}
+
+///*! Encode TS 04.08 SS Version IE (10.5.4.24) */
+//int gsm48_encode_ssversion(struct msgb *msg,
+//			   const struct gsm_mncc_ssversion *ssv)
+//{
+//	uint8_t lv[GSM_MAX_SSVERSION + 1];
+
+//	if (ssv->len > GSM_MAX_SSVERSION)
+//		return -EINVAL;
+
+//	lv[0] = ssv->len;
+//	memcpy(lv + 1, ssv->info, ssv->len);
+//	msgb_tlv_put(msg, GSM48_IE_SS_VERS, lv[0], lv+1);
+
+//	return 0;
+//}
+
+///* decode 'more data' does not require a function, because it has no value */
+
+///*! Encode TS 04.08 More Data IE (10.5.4.19) */
+//int gsm48_encode_more(struct msgb *msg)
+//{
+//	uint8_t *ie;
+
+//	ie = msgb_put(msg, 1);
+//	ie[0] = GSM48_IE_MORE_DATA;
+
+//	return 0;
+//}
+
+static int32_t smod(int32_t n, int32_t m)
+{
+	int32_t res;
+
+	res = n % m;
+
+	if (res <= 0)
+		res += m;
+
+	return res;
+}
+
+/*! Decode TS 04.08 Cell Channel Description IE (10.5.2.1b) and other frequency lists
+ *  \param[out] f Caller-provided output memory
+ *  \param[in] cd Cell Channel Description IE
+ *  \param[in] len Length of \a cd in bytes
+ *  \returns 0 on success; negative on error */
+int gsm48_decode_freq_list(struct gsm_sysinfo_freq *f, uint8_t *cd,
+			   uint8_t len, uint8_t mask, uint8_t frqt)
+{
+	int i;
+
+	/* NOTES:
+	 *
+	 * The Range format uses "SMOD" computation.
+	 * e.g. "n SMOD m" equals "((n - 1) % m) + 1"
+	 * A cascade of multiple SMOD computations is simpified:
+	 * "(n SMOD m) SMOD o" equals "(((n - 1) % m) % o) + 1"
+	 *
+	 * The Range format uses 16 octets of data in SYSTEM INFORMATION.
+	 * When used in dedicated messages, the length can be less.
+	 * In this case the ranges are decoded for all frequencies that
+	 * fit in the block of given length.
+	 */
+
+	/* tabula rasa */
+	for (i = 0; i < 1024; i++)
+		f[i].mask &= ~frqt;
+
+	/* 00..XXX. */
+	if ((cd[0] & 0xc0 & mask) == 0x00) {
+		/* Bit map 0 format */
+		if (len < 16)
+			return -EINVAL;
+		for (i = 1; i <= 124; i++)
+			if ((cd[15 - ((i-1) >> 3)] & (1 << ((i-1) & 7))))
+				f[i].mask |= frqt;
+
+		return 0;
+	}
+
+	/* 10..0XX. */
+	if ((cd[0] & 0xc8 & mask) == 0x80) {
+		/* Range 1024 format */
+		uint16_t w[17]; /* 1..16 */
+		struct gsm48_range_1024 *r = (struct gsm48_range_1024 *)cd;
+
+		if (len < 2)
+			return -EINVAL;
+		memset(w, 0, sizeof(w));
+		if (r->f0)
+			f[0].mask |= frqt;
+		w[1] = (r->w1_hi << 8) | r->w1_lo;
+		if (len >= 4)
+			w[2] = (r->w2_hi << 1) | r->w2_lo;
+		if (len >= 5)
+			w[3] = (r->w3_hi << 2) | r->w3_lo;
+		if (len >= 6)
+			w[4] = (r->w4_hi << 2) | r->w4_lo;
+		if (len >= 7)
+			w[5] = (r->w5_hi << 2) | r->w5_lo;
+		if (len >= 8)
+			w[6] = (r->w6_hi << 2) | r->w6_lo;
+		if (len >= 9)
+			w[7] = (r->w7_hi << 2) | r->w7_lo;
+		if (len >= 10)
+			w[8] = (r->w8_hi << 1) | r->w8_lo;
+		if (len >= 10)
+			w[9] = r->w9;
+		if (len >= 11)
+			w[10] = r->w10;
+		if (len >= 12)
+			w[11] = (r->w11_hi << 6) | r->w11_lo;
+		if (len >= 13)
+			w[12] = (r->w12_hi << 5) | r->w12_lo;
+		if (len >= 14)
+			w[13] = (r->w13_hi << 4) | r->w13_lo;
+		if (len >= 15)
+			w[14] = (r->w14_hi << 3) | r->w14_lo;
+		if (len >= 16)
+			w[15] = (r->w15_hi << 2) | r->w15_lo;
+		if (len >= 16)
+			w[16] = r->w16;
+		if (w[1])
+			f[w[1]].mask |= frqt;
+		if (w[2])
+			f[smod(w[1] - 512 + w[2], 1023)].mask |= frqt;
+		if (w[3])
+			f[smod(w[1]       + w[3], 1023)].mask |= frqt;
+		if (w[4])
+			f[smod(w[1] - 512 + smod(w[2] - 256 + w[4], 511), 1023)].mask |= frqt;
+		if (w[5])
+			f[smod(w[1]       + smod(w[3] - 256 + w[5], 511), 1023)].mask |= frqt;
+		if (w[6])
+			f[smod(w[1] - 512 + smod(w[2]       + w[6], 511), 1023)].mask |= frqt;
+		if (w[7])
+			f[smod(w[1]       + smod(w[3]       + w[7], 511), 1023)].mask |= frqt;
+		if (w[8])
+			f[smod(w[1] - 512 + smod(w[2] - 256 + smod(w[4] - 128 + w[8] , 255), 511), 1023)].mask |= frqt;
+		if (w[9])
+			f[smod(w[1]       + smod(w[3] - 256 + smod(w[5] - 128 + w[9] , 255), 511), 1023)].mask |= frqt;
+		if (w[10])
+			f[smod(w[1] - 512 + smod(w[2]       + smod(w[6] - 128 + w[10], 255), 511), 1023)].mask |= frqt;
+		if (w[11])
+			f[smod(w[1]       + smod(w[3]       + smod(w[7] - 128 + w[11], 255), 511), 1023)].mask |= frqt;
+		if (w[12])
+			f[smod(w[1] - 512 + smod(w[2] - 256 + smod(w[4]       + w[12], 255), 511), 1023)].mask |= frqt;
+		if (w[13])
+			f[smod(w[1]       + smod(w[3] - 256 + smod(w[5]       + w[13], 255), 511), 1023)].mask |= frqt;
+		if (w[14])
+			f[smod(w[1] - 512 + smod(w[2]       + smod(w[6]       + w[14], 255), 511), 1023)].mask |= frqt;
+		if (w[15])
+			f[smod(w[1]       + smod(w[3]       + smod(w[7]       + w[15], 255), 511), 1023)].mask |= frqt;
+		if (w[16])
+			f[smod(w[1] - 512 + smod(w[2] - 256 + smod(w[4] - 128 + smod(w[8] - 64 + w[16], 127), 255), 511), 1023)].mask |= frqt;
+
+		return 0;
+	}
+	/* 10..100. */
+	if ((cd[0] & 0xce & mask) == 0x88) {
+		/* Range 512 format */
+		uint16_t w[18]; /* 1..17 */
+		struct gsm48_range_512 *r = (struct gsm48_range_512 *)cd;
+
+		if (len < 4)
+			return -EINVAL;
+		memset(w, 0, sizeof(w));
+		w[0] = (r->orig_arfcn_hi << 9) | (r->orig_arfcn_mid << 1) | r->orig_arfcn_lo;
+		w[1] = (r->w1_hi << 2) | r->w1_lo;
+		if (len >= 5)
+			w[2] = (r->w2_hi << 2) | r->w2_lo;
+		if (len >= 6)
+			w[3] = (r->w3_hi << 2) | r->w3_lo;
+		if (len >= 7)
+			w[4] = (r->w4_hi << 1) | r->w4_lo;
+		if (len >= 7)
+			w[5] = r->w5;
+		if (len >= 8)
+			w[6] = r->w6;
+		if (len >= 9)
+			w[7] = (r->w7_hi << 6) | r->w7_lo;
+		if (len >= 10)
+			w[8] = (r->w8_hi << 4) | r->w8_lo;
+		if (len >= 11)
+			w[9] = (r->w9_hi << 2) | r->w9_lo;
+		if (len >= 11)
+			w[10] = r->w10;
+		if (len >= 12)
+			w[11] = r->w11;
+		if (len >= 13)
+			w[12] = (r->w12_hi << 4) | r->w12_lo;
+		if (len >= 14)
+			w[13] = (r->w13_hi << 2) | r->w13_lo;
+		if (len >= 14)
+			w[14] = r->w14;
+		if (len >= 15)
+			w[15] = r->w15;
+		if (len >= 16)
+			w[16] = (r->w16_hi << 3) | r->w16_lo;
+		if (len >= 16)
+			w[17] = r->w17;
+		f[w[0]].mask |= frqt;
+		if (w[1])
+			f[(w[0] + w[1]) % 1024].mask |= frqt;
+		if (w[2])
+			f[(w[0] + smod(w[1] - 256 + w[2], 511)) % 1024].mask |= frqt;
+		if (w[3])
+			f[(w[0] + smod(w[1]       + w[3], 511)) % 1024].mask |= frqt;
+		if (w[4])
+			f[(w[0] + smod(w[1] - 256 + smod(w[2] - 128 + w[4], 255), 511)) % 1024].mask |= frqt;
+		if (w[5])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 128 + w[5], 255), 511)) % 1024].mask |= frqt;
+		if (w[6])
+			f[(w[0] + smod(w[1] - 256 + smod(w[2]       + w[6], 255), 511)) % 1024].mask |= frqt;
+		if (w[7])
+			f[(w[0] + smod(w[1]       + smod(w[3]       + w[7], 255), 511)) % 1024].mask |= frqt;
+		if (w[8])
+			f[(w[0] + smod(w[1] - 256 + smod(w[2] - 128 + smod(w[4] - 64 + w[8] , 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[9])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 128 + smod(w[5] - 64 + w[9] , 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[10])
+			f[(w[0] + smod(w[1] - 256 + smod(w[2]       + smod(w[6] - 64 + w[10], 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[11])
+			f[(w[0] + smod(w[1]       + smod(w[3]       + smod(w[7] - 64 + w[11], 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[12])
+			f[(w[0] + smod(w[1] - 256 + smod(w[2] - 128 + smod(w[4]      + w[12], 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[13])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 128 + smod(w[5]      + w[13], 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[14])
+			f[(w[0] + smod(w[1] - 256 + smod(w[2]       + smod(w[6]      + w[14], 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[15])
+			f[(w[0] + smod(w[1]       + smod(w[3]       + smod(w[7]      + w[15], 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[16])
+			f[(w[0] + smod(w[1] - 256 + smod(w[2] - 128 + smod(w[4] - 64 + smod(w[8] - 32 + w[16], 63), 127), 255), 511)) % 1024].mask |= frqt;
+		if (w[17])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 128 + smod(w[5] - 64 + smod(w[9] - 32 + w[17], 63), 127), 255), 511)) % 1024].mask |= frqt;
+
+		return 0;
+	}
+	/* 10..101. */
+	if ((cd[0] & 0xce & mask) == 0x8a) {
+		/* Range 256 format */
+		uint16_t w[22]; /* 1..21 */
+		struct gsm48_range_256 *r = (struct gsm48_range_256 *)cd;
+
+		if (len < 4)
+			return -EINVAL;
+		memset(w, 0, sizeof(w));
+		w[0] = (r->orig_arfcn_hi << 9) | (r->orig_arfcn_mid << 1) | r->orig_arfcn_lo;
+		w[1] = (r->w1_hi << 1) | r->w1_lo;
+		if (len >= 4)
+			w[2] = r->w2;
+		if (len >= 5)
+			w[3] = r->w3;
+		if (len >= 6)
+			w[4] = (r->w4_hi << 5) | r->w4_lo;
+		if (len >= 7)
+			w[5] = (r->w5_hi << 3) | r->w5_lo;
+		if (len >= 8)
+			w[6] = (r->w6_hi << 1) | r->w6_lo;
+		if (len >= 8)
+			w[7] = r->w7;
+		if (len >= 9)
+			w[8] = (r->w8_hi << 4) | r->w8_lo;
+		if (len >= 10)
+			w[9] = (r->w9_hi << 1) | r->w9_lo;
+		if (len >= 10)
+			w[10] = r->w10;
+		if (len >= 11)
+			w[11] = (r->w11_hi << 3) | r->w11_lo;
+		if (len >= 11)
+			w[12] = r->w12;
+		if (len >= 12)
+			w[13] = r->w13;
+		if (len >= 13)
+			w[14] = (r->w14_hi << 2) | r->w14_lo;
+		if (len >= 13)
+			w[15] = r->w15;
+		if (len >= 14)
+			w[16] = (r->w16_hi << 3) | r->w16_lo;
+		if (len >= 14)
+			w[17] = r->w17;
+		if (len >= 15)
+			w[18] = (r->w18_hi << 3) | r->w18_lo;
+		if (len >= 15)
+			w[19] = r->w19;
+		if (len >= 16)
+			w[20] = (r->w20_hi << 3) | r->w20_lo;
+		if (len >= 16)
+			w[21] = r->w21;
+		f[w[0]].mask |= frqt;
+		if (w[1])
+			f[(w[0] + w[1]) % 1024].mask |= frqt;
+		if (w[2])
+			f[(w[0] + smod(w[1] - 128 + w[2], 255)) % 1024].mask |= frqt;
+		if (w[3])
+			f[(w[0] + smod(w[1]       + w[3], 255)) % 1024].mask |= frqt;
+		if (w[4])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2] - 64 + w[4], 127), 255)) % 1024].mask |= frqt;
+		if (w[5])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 64 + w[5], 127), 255)) % 1024].mask |= frqt;
+		if (w[6])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2]      + w[6], 127), 255)) % 1024].mask |= frqt;
+		if (w[7])
+			f[(w[0] + smod(w[1]       + smod(w[3]      + w[7], 127), 255)) % 1024].mask |= frqt;
+		if (w[8])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2] - 64 + smod(w[4] - 32 + w[8] , 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[9])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 64 + smod(w[5] - 32 + w[9] , 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[10])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2]      + smod(w[6] - 32 + w[10], 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[11])
+			f[(w[0] + smod(w[1]       + smod(w[3]      + smod(w[7] - 32 + w[11], 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[12])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2] - 64 + smod(w[4]      + w[12], 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[13])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 64 + smod(w[5]      + w[13], 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[14])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2]      + smod(w[6]      + w[14], 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[15])
+			f[(w[0] + smod(w[1]       + smod(w[3]      + smod(w[7]      + w[15], 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[16])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2] - 64 + smod(w[4] - 32 + smod(w[8]  - 16 + w[16], 31), 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[17])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 64 + smod(w[5] - 32 + smod(w[9]  - 16 + w[17], 31), 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[18])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2]      + smod(w[6] - 32 + smod(w[10] - 16 + w[18], 31), 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[19])
+			f[(w[0] + smod(w[1]       + smod(w[3]      + smod(w[7] - 32 + smod(w[11] - 16 + w[19], 31), 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[20])
+			f[(w[0] + smod(w[1] - 128 + smod(w[2] - 64 + smod(w[4]      + smod(w[12] - 16 + w[20], 31), 63), 127), 255)) % 1024].mask |= frqt;
+		if (w[21])
+			f[(w[0] + smod(w[1]       + smod(w[3] - 64 + smod(w[5]      + smod(w[13] - 16 + w[21], 31), 63), 127), 255)) % 1024].mask |= frqt;
+
+		return 0;
+	}
+	/* 10..110. */
+	if ((cd[0] & 0xce & mask) == 0x8c) {
+		/* Range 128 format */
+		uint16_t w[29]; /* 1..28 */
+		struct gsm48_range_128 *r = (struct gsm48_range_128 *)cd;
+
+		if (len < 3)
+			return -EINVAL;
+		memset(w, 0, sizeof(w));
+		w[0] = (r->orig_arfcn_hi << 9) | (r->orig_arfcn_mid << 1) | r->orig_arfcn_lo;
+		w[1] = r->w1;
+		if (len >= 4)
+			w[2] = r->w2;
+		if (len >= 5)
+			w[3] = (r->w3_hi << 4) | r->w3_lo;
+		if (len >= 6)
+			w[4] = (r->w4_hi << 1) | r->w4_lo;
+		if (len >= 6)
+			w[5] = r->w5;
+		if (len >= 7)
+			w[6] = (r->w6_hi << 3) | r->w6_lo;
+		if (len >= 7)
+			w[7] = r->w7;
+		if (len >= 8)
+			w[8] = r->w8;
+		if (len >= 8)
+			w[9] = r->w9;
+		if (len >= 9)
+			w[10] = r->w10;
+		if (len >= 9)
+			w[11] = r->w11;
+		if (len >= 10)
+			w[12] = r->w12;
+		if (len >= 10)
+			w[13] = r->w13;
+		if (len >= 11)
+			w[14] = r->w14;
+		if (len >= 11)
+			w[15] = r->w15;
+		if (len >= 12)
+			w[16] = r->w16;
+		if (len >= 12)
+			w[17] = r->w17;
+		if (len >= 13)
+			w[18] = (r->w18_hi << 1) | r->w18_lo;
+		if (len >= 13)
+			w[19] = r->w19;
+		if (len >= 13)
+			w[20] = r->w20;
+		if (len >= 14)
+			w[21] = (r->w21_hi << 2) | r->w21_lo;
+		if (len >= 14)
+			w[22] = r->w22;
+		if (len >= 14)
+			w[23] = r->w23;
+		if (len >= 15)
+			w[24] = r->w24;
+		if (len >= 15)
+			w[25] = r->w25;
+		if (len >= 16)
+			w[26] = (r->w26_hi << 1) | r->w26_lo;
+		if (len >= 16)
+			w[27] = r->w27;
+		if (len >= 16)
+			w[28] = r->w28;
+		f[w[0]].mask |= frqt;
+		if (w[1])
+			f[(w[0] + w[1]) % 1024].mask |= frqt;
+		if (w[2])
+			f[(w[0] + smod(w[1] - 64 + w[2], 127)) % 1024].mask |= frqt;
+		if (w[3])
+			f[(w[0] + smod(w[1]      + w[3], 127)) % 1024].mask |= frqt;
+		if (w[4])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2] - 32 + w[4], 63), 127)) % 1024].mask |= frqt;
+		if (w[5])
+			f[(w[0] + smod(w[1]      + smod(w[3] - 32 + w[5], 63), 127)) % 1024].mask |= frqt;
+		if (w[6])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2]      + w[6], 63), 127)) % 1024].mask |= frqt;
+		if (w[7])
+			f[(w[0] + smod(w[1]      + smod(w[3]      + w[7], 63), 127)) % 1024].mask |= frqt;
+		if (w[8])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2] - 32 + smod(w[4] - 16 + w[8] , 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[9])
+			f[(w[0] + smod(w[1]      + smod(w[3] - 32 + smod(w[5] - 16 + w[9] , 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[10])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2]      + smod(w[6] - 16 + w[10], 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[11])
+			f[(w[0] + smod(w[1]      + smod(w[3]      + smod(w[7] - 16 + w[11], 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[12])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2] - 32 + smod(w[4]      + w[12], 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[13])
+			f[(w[0] + smod(w[1]      + smod(w[3] - 32 + smod(w[5]      + w[13], 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[14])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2]      + smod(w[6]      + w[14], 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[15])
+			f[(w[0] + smod(w[1]      + smod(w[3]      + smod(w[7]      + w[15], 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[16])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2] - 32 + smod(w[4] - 16 + smod(w[8]  - 8 + w[16], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[17])
+			f[(w[0] + smod(w[1]      + smod(w[3] - 32 + smod(w[5] - 16 + smod(w[9]  - 8 + w[17], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[18])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2]      + smod(w[6] - 16 + smod(w[10] - 8 + w[18], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[19])
+			f[(w[0] + smod(w[1]      + smod(w[3]      + smod(w[7] - 16 + smod(w[11] - 8 + w[19], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[20])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2] - 32 + smod(w[4]      + smod(w[12] - 8 + w[20], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[21])
+			f[(w[0] + smod(w[1]      + smod(w[3] - 32 + smod(w[5]      + smod(w[13] - 8 + w[21], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[22])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2]      + smod(w[6]      + smod(w[14] - 8 + w[22], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[23])
+			f[(w[0] + smod(w[1]      + smod(w[3]      + smod(w[7]      + smod(w[15] - 8 + w[23], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[24])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2] - 32 + smod(w[4] - 16 + smod(w[8]      + w[24], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[25])
+			f[(w[0] + smod(w[1]      + smod(w[3] - 32 + smod(w[5] - 16 + smod(w[9]      + w[25], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[26])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2]      + smod(w[6] - 16 + smod(w[10]     + w[26], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[27])
+			f[(w[0] + smod(w[1]      + smod(w[3]      + smod(w[7] - 16 + smod(w[11]     + w[27], 15), 31), 63), 127)) % 1024].mask |= frqt;
+		if (w[28])
+			f[(w[0] + smod(w[1] - 64 + smod(w[2] - 32 + smod(w[4]      + smod(w[12]     + w[28], 15), 31), 63), 127)) % 1024].mask |= frqt;
+
+		return 0;
+	}
+	/* 10..111. */
+	if ((cd[0] & 0xce & mask) == 0x8e) {
+		/* Variable bitmap format (can be any length >= 3) */
+		uint16_t orig = 0;
+		struct gsm48_var_bit *r = (struct gsm48_var_bit *)cd;
+
+		if (len < 3)
+			return -EINVAL;
+		orig = (r->orig_arfcn_hi << 9) | (r->orig_arfcn_mid << 1) | r->orig_arfcn_lo;
+		f[orig].mask |= frqt;
+		for (i = 1; 2 + (i >> 3) < len; i++)
+			if ((cd[2 + (i >> 3)] & (0x80 >> (i & 7))))
+				f[(orig + i) % 1024].mask |= frqt;
+
+		return 0;
+	}
+
+	return 0;
+}
+/*! @} */