/* 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) 2008-2009 by Harald Welte <laforge@gnumonks.org>
+/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
* (C) 2008, 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
*
* All Rights Reserved
},
};
+/* RR elements */
+const struct tlv_definition gsm48_rr_att_tlvdef = {
+ .def = {
+ /* NOTE: Don't add IE 17 = MOBILE_ID here, it already used. */
+ [GSM48_IE_VGCS_TARGET] = { TLV_TYPE_TLV },
+ [GSM48_IE_FRQSHORT_AFTER] = { TLV_TYPE_FIXED, 9 },
+ [GSM48_IE_MUL_RATE_CFG] = { TLV_TYPE_TLV },
+ [GSM48_IE_FREQ_L_AFTER] = { TLV_TYPE_TLV },
+ [GSM48_IE_MSLOT_DESC] = { TLV_TYPE_TLV },
+ [GSM48_IE_CHANMODE_2] = { TLV_TYPE_TV },
+ [GSM48_IE_FRQSHORT_BEFORE] = { TLV_TYPE_FIXED, 9 },
+ [GSM48_IE_CHANMODE_3] = { TLV_TYPE_TV },
+ [GSM48_IE_CHANMODE_4] = { TLV_TYPE_TV },
+ [GSM48_IE_CHANMODE_5] = { TLV_TYPE_TV },
+ [GSM48_IE_CHANMODE_6] = { TLV_TYPE_TV },
+ [GSM48_IE_CHANMODE_7] = { TLV_TYPE_TV },
+ [GSM48_IE_CHANMODE_8] = { TLV_TYPE_TV },
+ [GSM48_IE_FREQ_L_BEFORE] = { TLV_TYPE_TLV },
+ [GSM48_IE_CH_DESC_1_BEFORE] = { TLV_TYPE_FIXED, 3 },
+ [GSM48_IE_CH_DESC_2_BEFORE] = { TLV_TYPE_FIXED, 3 },
+ [GSM48_IE_F_CH_SEQ_BEFORE] = { TLV_TYPE_FIXED, 9 },
+ [GSM48_IE_CLASSMARK3] = { TLV_TYPE_TLV },
+ [GSM48_IE_MA_BEFORE] = { TLV_TYPE_TLV },
+ [GSM48_IE_RR_PACKET_UL] = { TLV_TYPE_TLV },
+ [GSM48_IE_RR_PACKET_DL] = { TLV_TYPE_TLV },
+ [GSM48_IE_CELL_CH_DESC] = { TLV_TYPE_FIXED, 16 },
+ [GSM48_IE_CHANMODE_1] = { TLV_TYPE_TV },
+ [GSM48_IE_CHDES_2_AFTER] = { TLV_TYPE_FIXED, 3 },
+ [GSM48_IE_MODE_SEC_CH] = { TLV_TYPE_TV },
+ [GSM48_IE_F_CH_SEQ_AFTER] = { TLV_TYPE_FIXED, 9 },
+ [GSM48_IE_MA_AFTER] = { TLV_TYPE_TLV },
+ [GSM48_IE_BA_RANGE] = { TLV_TYPE_TLV },
+ [GSM48_IE_GROUP_CHDES] = { TLV_TYPE_TLV },
+ [GSM48_IE_BA_LIST_PREF] = { TLV_TYPE_TLV },
+ [GSM48_IE_MOB_OVSERV_DIF] = { TLV_TYPE_TLV },
+ [GSM48_IE_REALTIME_DIFF] = { TLV_TYPE_TLV },
+ [GSM48_IE_START_TIME] = { TLV_TYPE_FIXED, 2 },
+ [GSM48_IE_TIMING_ADVANCE] = { TLV_TYPE_TV },
+ [GSM48_IE_GROUP_CIP_SEQ] = { TLV_TYPE_SINGLE_TV },
+ [GSM48_IE_CIP_MODE_SET] = { TLV_TYPE_SINGLE_TV },
+ [GSM48_IE_GPRS_RESUMPT] = { TLV_TYPE_SINGLE_TV },
+ [GSM48_IE_SYNC_IND] = { TLV_TYPE_SINGLE_TV },
+ },
+};
+
+/* MM elements */
+const struct tlv_definition gsm48_mm_att_tlvdef = {
+ .def = {
+ [GSM48_IE_MOBILE_ID] = { TLV_TYPE_TLV },
+ [GSM48_IE_NAME_LONG] = { TLV_TYPE_TLV },
+ [GSM48_IE_NAME_SHORT] = { TLV_TYPE_TLV },
+ [GSM48_IE_UTC] = { TLV_TYPE_TV },
+ [GSM48_IE_NET_TIME_TZ] = { TLV_TYPE_FIXED, 7 },
+ [GSM48_IE_LSA_IDENT] = { TLV_TYPE_TLV },
+
+ [GSM48_IE_LOCATION_AREA] = { TLV_TYPE_FIXED, 5 },
+ [GSM48_IE_PRIORITY_LEV] = { TLV_TYPE_SINGLE_TV },
+ [GSM48_IE_FOLLOW_ON_PROC] = { TLV_TYPE_T },
+ [GSM48_IE_CTS_PERMISSION] = { TLV_TYPE_T },
+ },
+};
+
static const struct value_string rr_cause_names[] = {
{ GSM48_RR_CAUSE_NORMAL, "Normal event" },
{ GSM48_RR_CAUSE_ABNORMAL_UNSPEC, "Abnormal release, unspecified" },
{ 0, NULL },
};
-const char *cc_state_names[32] = {
+/* FIXME: convert to value_string */
+static const char *cc_state_names[32] = {
"NULL",
"INITIATED",
- "illegal state 2",
+ "MM_CONNECTION_PEND",
"MO_CALL_PROC",
"CALL_DELIVERED",
"illegal state 5",
"illegal state 31",
};
-const char *gsm48_cc_msg_names[0x40] = {
- "unknown 0x00",
- "ALERTING",
- "CALL_PROC",
- "PROGRESS",
- "ESTAB",
- "SETUP",
- "ESTAB_CONF",
- "CONNECT",
- "CALL_CONF",
- "START_CC",
- "unknown 0x0a",
- "RECALL",
- "unknown 0x0c",
- "unknown 0x0d",
- "EMERG_SETUP",
- "CONNECT_ACK",
- "USER_INFO",
- "unknown 0x11",
- "unknown 0x12",
- "MODIFY_REJECT",
- "unknown 0x14",
- "unknown 0x15",
- "unknown 0x16",
- "MODIFY",
- "HOLD",
- "HOLD_ACK",
- "HOLD_REJ",
- "unknown 0x1b",
- "RETR",
- "RETR_ACK",
- "RETR_REJ",
- "MODIFY_COMPL",
- "unknown 0x20",
- "unknown 0x21",
- "unknown 0x22",
- "unknown 0x23",
- "unknown 0x24",
- "DISCONNECT",
- "unknown 0x26",
- "unknown 0x27",
- "unknown 0x28",
- "unknown 0x29",
- "RELEASE_COMPL",
- "unknown 0x2b",
- "unknown 0x2c",
- "RELEASE",
- "unknown 0x2e",
- "unknown 0x2f",
- "unknown 0x30",
- "STOP_DTMF",
- "STOP_DTMF_ACK",
- "unknown 0x33",
- "STATUS_ENQ",
- "START_DTMF",
- "START_DTMF_ACK",
- "START_DTMF_REJ",
- "unknown 0x38",
- "CONG_CTRL",
- "FACILITY",
- "unknown 0x3b",
- "STATUS",
- "unknown 0x3d",
- "NOTIFY",
- "unknown 0x3f",
+const char *gsm48_cc_state_name(uint8_t state)
+{
+ if (state < ARRAY_SIZE(cc_state_names))
+ return cc_state_names[state];
+
+ return "invalid";
+}
+
+static const struct value_string cc_msg_names[] = {
+ { GSM48_MT_CC_ALERTING, "ALERTING" },
+ { GSM48_MT_CC_CALL_PROC, "CALL_PROC" },
+ { GSM48_MT_CC_PROGRESS, "PROGRESS" },
+ { GSM48_MT_CC_ESTAB, "ESTAB" },
+ { GSM48_MT_CC_SETUP, "SETUP" },
+ { GSM48_MT_CC_ESTAB_CONF, "ESTAB_CONF" },
+ { GSM48_MT_CC_CONNECT, "CONNECT" },
+ { GSM48_MT_CC_CALL_CONF, "CALL_CONF" },
+ { GSM48_MT_CC_START_CC, "START_CC" },
+ { GSM48_MT_CC_RECALL, "RECALL" },
+ { GSM48_MT_CC_EMERG_SETUP, "EMERG_SETUP" },
+ { GSM48_MT_CC_CONNECT_ACK, "CONNECT_ACK" },
+ { GSM48_MT_CC_USER_INFO, "USER_INFO" },
+ { GSM48_MT_CC_MODIFY_REJECT, "MODIFY_REJECT" },
+ { GSM48_MT_CC_MODIFY, "MODIFY" },
+ { GSM48_MT_CC_HOLD, "HOLD" },
+ { GSM48_MT_CC_HOLD_ACK, "HOLD_ACK" },
+ { GSM48_MT_CC_HOLD_REJ, "HOLD_REJ" },
+ { GSM48_MT_CC_RETR, "RETR" },
+ { GSM48_MT_CC_RETR_ACK, "RETR_ACK" },
+ { GSM48_MT_CC_RETR_REJ, "RETR_REJ" },
+ { GSM48_MT_CC_MODIFY_COMPL, "MODIFY_COMPL" },
+ { GSM48_MT_CC_DISCONNECT, "DISCONNECT" },
+ { GSM48_MT_CC_RELEASE_COMPL, "RELEASE_COMPL" },
+ { GSM48_MT_CC_RELEASE, "RELEASE" },
+ { GSM48_MT_CC_STOP_DTMF, "STOP_DTMF" },
+ { GSM48_MT_CC_STOP_DTMF_ACK, "STOP_DTMF_ACK" },
+ { GSM48_MT_CC_STATUS_ENQ, "STATUS_ENQ" },
+ { GSM48_MT_CC_START_DTMF, "START_DTMF" },
+ { GSM48_MT_CC_START_DTMF_ACK, "START_DTMF_ACK" },
+ { GSM48_MT_CC_START_DTMF_REJ, "START_DTMF_REJ" },
+ { GSM48_MT_CC_CONG_CTRL, "CONG_CTRL" },
+ { GSM48_MT_CC_FACILITY, "FACILITY" },
+ { GSM48_MT_CC_STATUS, "STATUS" },
+ { GSM48_MT_CC_NOTIFY, "NOTFIY" },
+ { 0, NULL }
};
-static char strbuf[64];
+const char *gsm48_cc_msg_name(uint8_t msgtype)
+{
+ return get_value_string(cc_msg_names, msgtype);
+}
const char *rr_cause_name(uint8_t cause)
{
to_bcd(bcd, mnc);
/* FIXME: do we need three-digit MNC? See Table 10.5.3 */
-#if 0
- lai48->digits[1] |= bcd[2] << 4;
- lai48->digits[2] = bcd[0] | (bcd[1] << 4);
-#else
- lai48->digits[1] |= 0xf << 4;
- lai48->digits[2] = bcd[1] | (bcd[2] << 4);
-#endif
+ if (mnc > 99) {
+ lai48->digits[1] |= bcd[2] << 4;
+ lai48->digits[2] = bcd[0] | (bcd[1] << 4);
+ } else {
+ lai48->digits[1] |= 0xf << 4;
+ lai48->digits[2] = bcd[1] | (bcd[2] << 4);
+ }
lai48->lac = htons(lac);
}
return 2 + buf[1];
}
+
+/* Convert Mobile Identity (10.5.1.4) to string */
+int gsm48_mi_to_string(char *string, const int str_len, const uint8_t *mi,
+ const int mi_len)
+{
+ int i;
+ uint8_t mi_type;
+ char *str_cur = string;
+ uint32_t tmsi;
+
+ mi_type = mi[0] & GSM_MI_TYPE_MASK;
+
+ switch (mi_type) {
+ case GSM_MI_TYPE_NONE:
+ break;
+ case GSM_MI_TYPE_TMSI:
+ /* Table 10.5.4.3, reverse generate_mid_from_tmsi */
+ if (mi_len == GSM48_TMSI_LEN && mi[0] == (0xf0 | GSM_MI_TYPE_TMSI)) {
+ memcpy(&tmsi, &mi[1], 4);
+ tmsi = ntohl(tmsi);
+ return snprintf(string, str_len, "%u", tmsi);
+ }
+ break;
+ case GSM_MI_TYPE_IMSI:
+ case GSM_MI_TYPE_IMEI:
+ case GSM_MI_TYPE_IMEISV:
+ *str_cur++ = bcd2char(mi[0] >> 4);
+
+ for (i = 1; i < mi_len; i++) {
+ if (str_cur + 2 >= string + str_len)
+ return str_cur - string;
+ *str_cur++ = bcd2char(mi[i] & 0xf);
+ /* skip last nibble in last input byte when GSM_EVEN */
+ if( (i != mi_len-1) || (mi[0] & GSM_MI_ODD))
+ *str_cur++ = bcd2char(mi[i] >> 4);
+ }
+ break;
+ default:
+ break;
+ }
+ *str_cur++ = '\0';
+
+ return str_cur - string;
+}
+
+void gsm48_parse_ra(struct gprs_ra_id *raid, const uint8_t *buf)
+{
+ raid->mcc = (buf[0] & 0xf) * 100;
+ raid->mcc += (buf[0] >> 4) * 10;
+ raid->mcc += (buf[1] & 0xf) * 1;
+
+ /* I wonder who came up with the stupidity of encoding the MNC
+ * differently depending on how many digits its decimal number has! */
+ if ((buf[1] >> 4) == 0xf) {
+ raid->mnc = (buf[2] & 0xf) * 10;
+ raid->mnc += (buf[2] >> 4) * 1;
+ } else {
+ raid->mnc = (buf[2] & 0xf) * 100;
+ raid->mnc += (buf[2] >> 4) * 10;
+ raid->mnc += (buf[1] >> 4) * 1;
+ }
+
+ raid->lac = ntohs(*(uint16_t *)(buf + 3));
+ raid->rac = buf[5];
+}
+
+int gsm48_construct_ra(uint8_t *buf, const struct gprs_ra_id *raid)
+{
+ uint16_t mcc = raid->mcc;
+ uint16_t mnc = raid->mnc;
+
+ buf[0] = ((mcc / 100) % 10) | (((mcc / 10) % 10) << 4);
+ buf[1] = (mcc % 10);
+
+ /* I wonder who came up with the stupidity of encoding the MNC
+ * differently depending on how many digits its decimal number has! */
+ if (mnc < 100) {
+ buf[1] |= 0xf0;
+ buf[2] = ((mnc / 10) % 10) | ((mnc % 10) << 4);
+ } else {
+ buf[1] |= (mnc % 10) << 4;
+ buf[2] = ((mnc / 100) % 10) | (((mcc / 10) % 10) << 4);
+ }
+
+ *(uint16_t *)(buf+3) = htons(raid->lac);
+
+ buf[5] = raid->rac;
+
+ return 6;
+}
projects / osmocom-bb.git / blobdiff