Neels Hofmeyr | 17518fe | 2017-06-20 04:35:06 +0200 | [diff] [blame] | 1 | /*! \file gsm48.c |
| 2 | * GSM Mobile Radio Interface Layer 3 messages |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 3 | * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */ |
Neels Hofmeyr | 17518fe | 2017-06-20 04:35:06 +0200 | [diff] [blame] | 4 | /* |
| 5 | * (C) 2008-2010 by Harald Welte <laforge@gnumonks.org> |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 6 | * (C) 2008, 2009 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 7 | * |
| 8 | * All Rights Reserved |
| 9 | * |
Harald Welte | e08da97 | 2017-11-13 01:00:26 +0900 | [diff] [blame] | 10 | * SPDX-License-Identifier: GPL-2.0+ |
| 11 | * |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License along |
| 23 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 24 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #include <stdint.h> |
| 29 | #include <stdio.h> |
| 30 | #include <string.h> |
Max | fe65fa7 | 2016-05-10 17:17:05 +0200 | [diff] [blame] | 31 | #include <stdbool.h> |
Pau Espin Pedrol | 4573502 | 2017-06-18 14:05:24 +0200 | [diff] [blame] | 32 | #include <inttypes.h> |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 33 | #include <ctype.h> |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 34 | |
Pablo Neira Ayuso | 8341934 | 2011-03-22 16:36:13 +0100 | [diff] [blame] | 35 | #include <osmocom/core/utils.h> |
Harald Welte | 95871da | 2017-05-15 12:11:36 +0200 | [diff] [blame] | 36 | #include <osmocom/core/byteswap.h> |
| 37 | #include <osmocom/core/bit16gen.h> |
| 38 | #include <osmocom/core/bit32gen.h> |
Harald Welte | 179f357 | 2019-03-18 18:38:47 +0100 | [diff] [blame] | 39 | #include <osmocom/core/talloc.h> |
Pablo Neira Ayuso | 8341934 | 2011-03-22 16:36:13 +0100 | [diff] [blame] | 40 | #include <osmocom/gsm/tlv.h> |
| 41 | #include <osmocom/gsm/gsm48.h> |
Harald Welte | 94df39e | 2011-06-26 14:33:57 +0200 | [diff] [blame] | 42 | #include <osmocom/gsm/gsm0502.h> |
Max | fb348ee | 2016-03-30 21:14:53 +0200 | [diff] [blame] | 43 | #include <osmocom/gsm/gsm_utils.h> |
Pablo Neira Ayuso | 8341934 | 2011-03-22 16:36:13 +0100 | [diff] [blame] | 44 | #include <osmocom/gsm/protocol/gsm_04_08.h> |
Vadim Yanitskiy | 8d41d72 | 2018-04-17 11:17:28 +0700 | [diff] [blame] | 45 | #include <osmocom/gsm/protocol/gsm_04_80.h> |
Harald Welte | 2aee7b1 | 2011-06-26 14:20:04 +0200 | [diff] [blame] | 46 | #include <osmocom/gsm/protocol/gsm_08_58.h> |
Max | fdca25d | 2016-07-05 16:06:28 +0200 | [diff] [blame] | 47 | #include <osmocom/gsm/protocol/gsm_04_08_gprs.h> |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 48 | #include <osmocom/gsm/protocol/gsm_23_003.h> |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 49 | |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 50 | /*! \addtogroup gsm0408 |
| 51 | * @{ |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 52 | * GSM Mobile Radion Interface L3 messages / TS 04.08 |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 53 | */ |
| 54 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 55 | /*! TLV parser definitions for TS 04.08 CC */ |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 56 | const struct tlv_definition gsm48_att_tlvdef = { |
| 57 | .def = { |
| 58 | [GSM48_IE_MOBILE_ID] = { TLV_TYPE_TLV }, |
| 59 | [GSM48_IE_NAME_LONG] = { TLV_TYPE_TLV }, |
| 60 | [GSM48_IE_NAME_SHORT] = { TLV_TYPE_TLV }, |
| 61 | [GSM48_IE_UTC] = { TLV_TYPE_TV }, |
| 62 | [GSM48_IE_NET_TIME_TZ] = { TLV_TYPE_FIXED, 7 }, |
| 63 | [GSM48_IE_LSA_IDENT] = { TLV_TYPE_TLV }, |
| 64 | |
| 65 | [GSM48_IE_BEARER_CAP] = { TLV_TYPE_TLV }, |
| 66 | [GSM48_IE_CAUSE] = { TLV_TYPE_TLV }, |
| 67 | [GSM48_IE_CC_CAP] = { TLV_TYPE_TLV }, |
| 68 | [GSM48_IE_ALERT] = { TLV_TYPE_TLV }, |
| 69 | [GSM48_IE_FACILITY] = { TLV_TYPE_TLV }, |
| 70 | [GSM48_IE_PROGR_IND] = { TLV_TYPE_TLV }, |
| 71 | [GSM48_IE_AUX_STATUS] = { TLV_TYPE_TLV }, |
| 72 | [GSM48_IE_NOTIFY] = { TLV_TYPE_TV }, |
| 73 | [GSM48_IE_KPD_FACILITY] = { TLV_TYPE_TV }, |
| 74 | [GSM48_IE_SIGNAL] = { TLV_TYPE_TV }, |
| 75 | [GSM48_IE_CONN_BCD] = { TLV_TYPE_TLV }, |
| 76 | [GSM48_IE_CONN_SUB] = { TLV_TYPE_TLV }, |
| 77 | [GSM48_IE_CALLING_BCD] = { TLV_TYPE_TLV }, |
| 78 | [GSM48_IE_CALLING_SUB] = { TLV_TYPE_TLV }, |
| 79 | [GSM48_IE_CALLED_BCD] = { TLV_TYPE_TLV }, |
| 80 | [GSM48_IE_CALLED_SUB] = { TLV_TYPE_TLV }, |
| 81 | [GSM48_IE_REDIR_BCD] = { TLV_TYPE_TLV }, |
| 82 | [GSM48_IE_REDIR_SUB] = { TLV_TYPE_TLV }, |
| 83 | [GSM48_IE_LOWL_COMPAT] = { TLV_TYPE_TLV }, |
| 84 | [GSM48_IE_HIGHL_COMPAT] = { TLV_TYPE_TLV }, |
| 85 | [GSM48_IE_USER_USER] = { TLV_TYPE_TLV }, |
| 86 | [GSM48_IE_SS_VERS] = { TLV_TYPE_TLV }, |
| 87 | [GSM48_IE_MORE_DATA] = { TLV_TYPE_T }, |
| 88 | [GSM48_IE_CLIR_SUPP] = { TLV_TYPE_T }, |
| 89 | [GSM48_IE_CLIR_INVOC] = { TLV_TYPE_T }, |
| 90 | [GSM48_IE_REV_C_SETUP] = { TLV_TYPE_T }, |
| 91 | [GSM48_IE_REPEAT_CIR] = { TLV_TYPE_T }, |
| 92 | [GSM48_IE_REPEAT_SEQ] = { TLV_TYPE_T }, |
| 93 | /* FIXME: more elements */ |
| 94 | }, |
| 95 | }; |
| 96 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 97 | /*! TLV parser definitions for TS 04.08 RR */ |
Andreas Eversberg | 014cb87 | 2010-07-12 09:11:00 +0200 | [diff] [blame] | 98 | const struct tlv_definition gsm48_rr_att_tlvdef = { |
| 99 | .def = { |
| 100 | /* NOTE: Don't add IE 17 = MOBILE_ID here, it already used. */ |
| 101 | [GSM48_IE_VGCS_TARGET] = { TLV_TYPE_TLV }, |
| 102 | [GSM48_IE_FRQSHORT_AFTER] = { TLV_TYPE_FIXED, 9 }, |
| 103 | [GSM48_IE_MUL_RATE_CFG] = { TLV_TYPE_TLV }, |
| 104 | [GSM48_IE_FREQ_L_AFTER] = { TLV_TYPE_TLV }, |
| 105 | [GSM48_IE_MSLOT_DESC] = { TLV_TYPE_TLV }, |
| 106 | [GSM48_IE_CHANMODE_2] = { TLV_TYPE_TV }, |
| 107 | [GSM48_IE_FRQSHORT_BEFORE] = { TLV_TYPE_FIXED, 9 }, |
| 108 | [GSM48_IE_CHANMODE_3] = { TLV_TYPE_TV }, |
| 109 | [GSM48_IE_CHANMODE_4] = { TLV_TYPE_TV }, |
| 110 | [GSM48_IE_CHANMODE_5] = { TLV_TYPE_TV }, |
| 111 | [GSM48_IE_CHANMODE_6] = { TLV_TYPE_TV }, |
| 112 | [GSM48_IE_CHANMODE_7] = { TLV_TYPE_TV }, |
| 113 | [GSM48_IE_CHANMODE_8] = { TLV_TYPE_TV }, |
| 114 | [GSM48_IE_FREQ_L_BEFORE] = { TLV_TYPE_TLV }, |
| 115 | [GSM48_IE_CH_DESC_1_BEFORE] = { TLV_TYPE_FIXED, 3 }, |
| 116 | [GSM48_IE_CH_DESC_2_BEFORE] = { TLV_TYPE_FIXED, 3 }, |
| 117 | [GSM48_IE_F_CH_SEQ_BEFORE] = { TLV_TYPE_FIXED, 9 }, |
| 118 | [GSM48_IE_CLASSMARK3] = { TLV_TYPE_TLV }, |
| 119 | [GSM48_IE_MA_BEFORE] = { TLV_TYPE_TLV }, |
| 120 | [GSM48_IE_RR_PACKET_UL] = { TLV_TYPE_TLV }, |
| 121 | [GSM48_IE_RR_PACKET_DL] = { TLV_TYPE_TLV }, |
| 122 | [GSM48_IE_CELL_CH_DESC] = { TLV_TYPE_FIXED, 16 }, |
| 123 | [GSM48_IE_CHANMODE_1] = { TLV_TYPE_TV }, |
| 124 | [GSM48_IE_CHDES_2_AFTER] = { TLV_TYPE_FIXED, 3 }, |
| 125 | [GSM48_IE_MODE_SEC_CH] = { TLV_TYPE_TV }, |
| 126 | [GSM48_IE_F_CH_SEQ_AFTER] = { TLV_TYPE_FIXED, 9 }, |
| 127 | [GSM48_IE_MA_AFTER] = { TLV_TYPE_TLV }, |
| 128 | [GSM48_IE_BA_RANGE] = { TLV_TYPE_TLV }, |
| 129 | [GSM48_IE_GROUP_CHDES] = { TLV_TYPE_TLV }, |
| 130 | [GSM48_IE_BA_LIST_PREF] = { TLV_TYPE_TLV }, |
| 131 | [GSM48_IE_MOB_OVSERV_DIF] = { TLV_TYPE_TLV }, |
| 132 | [GSM48_IE_REALTIME_DIFF] = { TLV_TYPE_TLV }, |
| 133 | [GSM48_IE_START_TIME] = { TLV_TYPE_FIXED, 2 }, |
| 134 | [GSM48_IE_TIMING_ADVANCE] = { TLV_TYPE_TV }, |
| 135 | [GSM48_IE_GROUP_CIP_SEQ] = { TLV_TYPE_SINGLE_TV }, |
| 136 | [GSM48_IE_CIP_MODE_SET] = { TLV_TYPE_SINGLE_TV }, |
| 137 | [GSM48_IE_GPRS_RESUMPT] = { TLV_TYPE_SINGLE_TV }, |
| 138 | [GSM48_IE_SYNC_IND] = { TLV_TYPE_SINGLE_TV }, |
| 139 | }, |
| 140 | }; |
| 141 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 142 | /*! TLV parser definitions for TS 04.08 MM */ |
Andreas Eversberg | 014cb87 | 2010-07-12 09:11:00 +0200 | [diff] [blame] | 143 | const struct tlv_definition gsm48_mm_att_tlvdef = { |
| 144 | .def = { |
| 145 | [GSM48_IE_MOBILE_ID] = { TLV_TYPE_TLV }, |
| 146 | [GSM48_IE_NAME_LONG] = { TLV_TYPE_TLV }, |
| 147 | [GSM48_IE_NAME_SHORT] = { TLV_TYPE_TLV }, |
| 148 | [GSM48_IE_UTC] = { TLV_TYPE_TV }, |
| 149 | [GSM48_IE_NET_TIME_TZ] = { TLV_TYPE_FIXED, 7 }, |
| 150 | [GSM48_IE_LSA_IDENT] = { TLV_TYPE_TLV }, |
Jacob Erlbeck | 1c3f088 | 2013-09-16 10:29:57 +0200 | [diff] [blame] | 151 | [GSM48_IE_NET_DST] = { TLV_TYPE_TLV }, |
Andreas Eversberg | 014cb87 | 2010-07-12 09:11:00 +0200 | [diff] [blame] | 152 | |
| 153 | [GSM48_IE_LOCATION_AREA] = { TLV_TYPE_FIXED, 5 }, |
| 154 | [GSM48_IE_PRIORITY_LEV] = { TLV_TYPE_SINGLE_TV }, |
| 155 | [GSM48_IE_FOLLOW_ON_PROC] = { TLV_TYPE_T }, |
| 156 | [GSM48_IE_CTS_PERMISSION] = { TLV_TYPE_T }, |
| 157 | }, |
| 158 | }; |
| 159 | |
Harald Welte | e9e190a | 2010-03-25 11:44:57 +0800 | [diff] [blame] | 160 | static const struct value_string rr_cause_names[] = { |
| 161 | { GSM48_RR_CAUSE_NORMAL, "Normal event" }, |
| 162 | { GSM48_RR_CAUSE_ABNORMAL_UNSPEC, "Abnormal release, unspecified" }, |
| 163 | { GSM48_RR_CAUSE_ABNORMAL_UNACCT, "Abnormal release, channel unacceptable" }, |
| 164 | { GSM48_RR_CAUSE_ABNORMAL_TIMER, "Abnormal release, timer expired" }, |
| 165 | { GSM48_RR_CAUSE_ABNORMAL_NOACT, "Abnormal release, no activity on radio path" }, |
| 166 | { GSM48_RR_CAUSE_PREMPTIVE_REL, "Preemptive release" }, |
| 167 | { GSM48_RR_CAUSE_HNDOVER_IMP, "Handover impossible, timing advance out of range" }, |
| 168 | { GSM48_RR_CAUSE_CHAN_MODE_UNACCT, "Channel mode unacceptable" }, |
| 169 | { GSM48_RR_CAUSE_FREQ_NOT_IMPL, "Frequency not implemented" }, |
| 170 | { GSM48_RR_CAUSE_CALL_CLEARED, "Call already cleared" }, |
| 171 | { GSM48_RR_CAUSE_SEMANT_INCORR, "Semantically incorrect message" }, |
| 172 | { GSM48_RR_CAUSE_INVALID_MAND_INF, "Invalid mandatory information" }, |
| 173 | { GSM48_RR_CAUSE_MSG_TYPE_N, "Message type non-existant or not implemented" }, |
| 174 | { GSM48_RR_CAUSE_MSG_TYPE_N_COMPAT, "Message type not compatible with protocol state" }, |
| 175 | { GSM48_RR_CAUSE_COND_IE_ERROR, "Conditional IE error" }, |
| 176 | { GSM48_RR_CAUSE_NO_CELL_ALLOC_A, "No cell allocation available" }, |
| 177 | { GSM48_RR_CAUSE_PROT_ERROR_UNSPC, "Protocol error unspecified" }, |
| 178 | { 0, NULL }, |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 179 | }; |
| 180 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 181 | /*! return string representation of RR Cause value */ |
Philipp | ada0042 | 2016-10-27 13:30:16 +0200 | [diff] [blame] | 182 | const char *rr_cause_name(uint8_t cause) |
| 183 | { |
| 184 | return get_value_string(rr_cause_names, cause); |
| 185 | } |
| 186 | |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 187 | /*! Return MCC-MNC-LAC-RAC as string, in a caller-provided output buffer. |
| 188 | * \param[out] buf caller-provided output buffer |
| 189 | * \param[in] buf_len size of buf in bytes |
| 190 | * \param[in] rai RAI to encode. |
| 191 | * \returns buf |
| 192 | */ |
| 193 | char *osmo_rai_name_buf(char *buf, size_t buf_len, const struct gprs_ra_id *rai) |
| 194 | { |
| 195 | snprintf(buf, buf_len, "%s-%s-%u-%u", |
| 196 | osmo_mcc_name(rai->mcc), osmo_mnc_name(rai->mnc, rai->mnc_3_digits), rai->lac, |
| 197 | rai->rac); |
| 198 | return buf; |
| 199 | } |
| 200 | |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 201 | /*! Return MCC-MNC-LAC-RAC as string, in a static buffer. |
| 202 | * \param[in] rai RAI to encode. |
| 203 | * \returns Static string buffer. |
| 204 | */ |
| 205 | const char *osmo_rai_name(const struct gprs_ra_id *rai) |
| 206 | { |
Harald Welte | 171ef82 | 2019-03-28 10:49:05 +0100 | [diff] [blame] | 207 | static __thread char buf[32]; |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 208 | return osmo_rai_name_buf(buf, sizeof(buf), rai); |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 209 | } |
| 210 | |
Harald Welte | 179f357 | 2019-03-18 18:38:47 +0100 | [diff] [blame] | 211 | /*! Return MCC-MNC-LAC-RAC as string, in dynamically-allocated output buffer. |
| 212 | * \param[in] ctx talloc context from which to allocate output buffer |
| 213 | * \param[in] rai RAI to encode. |
| 214 | * \returns string representation in dynamically-allocated output buffer. |
| 215 | */ |
| 216 | char *osmo_rai_name_c(const void *ctx, const struct gprs_ra_id *rai) |
| 217 | { |
| 218 | char *buf = talloc_size(ctx, 32); |
| 219 | if (!buf) |
| 220 | return NULL; |
| 221 | return osmo_rai_name_buf(buf, 32, rai); |
| 222 | } |
| 223 | |
Harald Welte | 9eb6d88 | 2010-03-25 12:00:54 +0800 | [diff] [blame] | 224 | /* FIXME: convert to value_string */ |
Andreas Eversberg | 014cb87 | 2010-07-12 09:11:00 +0200 | [diff] [blame] | 225 | static const char *cc_state_names[32] = { |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 226 | "NULL", |
| 227 | "INITIATED", |
Andreas Eversberg | 1ef041f | 2010-04-09 07:52:12 +0200 | [diff] [blame] | 228 | "MM_CONNECTION_PEND", |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 229 | "MO_CALL_PROC", |
| 230 | "CALL_DELIVERED", |
| 231 | "illegal state 5", |
| 232 | "CALL_PRESENT", |
| 233 | "CALL_RECEIVED", |
| 234 | "CONNECT_REQUEST", |
| 235 | "MO_TERM_CALL_CONF", |
| 236 | "ACTIVE", |
| 237 | "DISCONNECT_REQ", |
| 238 | "DISCONNECT_IND", |
| 239 | "illegal state 13", |
| 240 | "illegal state 14", |
| 241 | "illegal state 15", |
| 242 | "illegal state 16", |
| 243 | "illegal state 17", |
| 244 | "illegal state 18", |
| 245 | "RELEASE_REQ", |
| 246 | "illegal state 20", |
| 247 | "illegal state 21", |
| 248 | "illegal state 22", |
| 249 | "illegal state 23", |
| 250 | "illegal state 24", |
| 251 | "illegal state 25", |
| 252 | "MO_ORIG_MODIFY", |
| 253 | "MO_TERM_MODIFY", |
| 254 | "CONNECT_IND", |
| 255 | "illegal state 29", |
| 256 | "illegal state 30", |
| 257 | "illegal state 31", |
| 258 | }; |
| 259 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 260 | /*! return string representation of CC State */ |
Harald Welte | 9eb6d88 | 2010-03-25 12:00:54 +0800 | [diff] [blame] | 261 | const char *gsm48_cc_state_name(uint8_t state) |
| 262 | { |
| 263 | if (state < ARRAY_SIZE(cc_state_names)) |
| 264 | return cc_state_names[state]; |
| 265 | |
| 266 | return "invalid"; |
| 267 | } |
| 268 | |
| 269 | static const struct value_string cc_msg_names[] = { |
| 270 | { GSM48_MT_CC_ALERTING, "ALERTING" }, |
| 271 | { GSM48_MT_CC_CALL_PROC, "CALL_PROC" }, |
| 272 | { GSM48_MT_CC_PROGRESS, "PROGRESS" }, |
| 273 | { GSM48_MT_CC_ESTAB, "ESTAB" }, |
| 274 | { GSM48_MT_CC_SETUP, "SETUP" }, |
| 275 | { GSM48_MT_CC_ESTAB_CONF, "ESTAB_CONF" }, |
| 276 | { GSM48_MT_CC_CONNECT, "CONNECT" }, |
| 277 | { GSM48_MT_CC_CALL_CONF, "CALL_CONF" }, |
| 278 | { GSM48_MT_CC_START_CC, "START_CC" }, |
| 279 | { GSM48_MT_CC_RECALL, "RECALL" }, |
| 280 | { GSM48_MT_CC_EMERG_SETUP, "EMERG_SETUP" }, |
| 281 | { GSM48_MT_CC_CONNECT_ACK, "CONNECT_ACK" }, |
| 282 | { GSM48_MT_CC_USER_INFO, "USER_INFO" }, |
| 283 | { GSM48_MT_CC_MODIFY_REJECT, "MODIFY_REJECT" }, |
| 284 | { GSM48_MT_CC_MODIFY, "MODIFY" }, |
| 285 | { GSM48_MT_CC_HOLD, "HOLD" }, |
| 286 | { GSM48_MT_CC_HOLD_ACK, "HOLD_ACK" }, |
| 287 | { GSM48_MT_CC_HOLD_REJ, "HOLD_REJ" }, |
| 288 | { GSM48_MT_CC_RETR, "RETR" }, |
| 289 | { GSM48_MT_CC_RETR_ACK, "RETR_ACK" }, |
| 290 | { GSM48_MT_CC_RETR_REJ, "RETR_REJ" }, |
| 291 | { GSM48_MT_CC_MODIFY_COMPL, "MODIFY_COMPL" }, |
| 292 | { GSM48_MT_CC_DISCONNECT, "DISCONNECT" }, |
| 293 | { GSM48_MT_CC_RELEASE_COMPL, "RELEASE_COMPL" }, |
| 294 | { GSM48_MT_CC_RELEASE, "RELEASE" }, |
| 295 | { GSM48_MT_CC_STOP_DTMF, "STOP_DTMF" }, |
| 296 | { GSM48_MT_CC_STOP_DTMF_ACK, "STOP_DTMF_ACK" }, |
| 297 | { GSM48_MT_CC_STATUS_ENQ, "STATUS_ENQ" }, |
| 298 | { GSM48_MT_CC_START_DTMF, "START_DTMF" }, |
| 299 | { GSM48_MT_CC_START_DTMF_ACK, "START_DTMF_ACK" }, |
| 300 | { GSM48_MT_CC_START_DTMF_REJ, "START_DTMF_REJ" }, |
| 301 | { GSM48_MT_CC_CONG_CTRL, "CONG_CTRL" }, |
| 302 | { GSM48_MT_CC_FACILITY, "FACILITY" }, |
| 303 | { GSM48_MT_CC_STATUS, "STATUS" }, |
| 304 | { GSM48_MT_CC_NOTIFY, "NOTFIY" }, |
| 305 | { 0, NULL } |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 306 | }; |
| 307 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 308 | /*! return string representation of CC Message Type */ |
Harald Welte | 9eb6d88 | 2010-03-25 12:00:54 +0800 | [diff] [blame] | 309 | const char *gsm48_cc_msg_name(uint8_t msgtype) |
| 310 | { |
| 311 | return get_value_string(cc_msg_names, msgtype); |
| 312 | } |
Harald Welte | 4fb2075 | 2010-03-02 23:17:33 +0100 | [diff] [blame] | 313 | |
Philipp | 72e43f0 | 2016-10-27 13:35:20 +0200 | [diff] [blame] | 314 | |
| 315 | static const struct value_string rr_msg_names[] = { |
| 316 | /* Channel establishment messages */ |
| 317 | { GSM48_MT_RR_INIT_REQ, "RR INITIALISATION REQUEST" }, |
| 318 | { GSM48_MT_RR_ADD_ASS, "ADDITIONAL ASSIGNMENT" }, |
| 319 | { GSM48_MT_RR_IMM_ASS, "IMMEDIATE ASSIGNMENT" }, |
| 320 | { GSM48_MT_RR_IMM_ASS_EXT, "MMEDIATE ASSIGNMENT EXTENDED" }, |
| 321 | { GSM48_MT_RR_IMM_ASS_REJ, "IMMEDIATE ASSIGNMENT REJECT" }, |
| 322 | { GSM48_MT_RR_DTM_ASS_FAIL, "DTM ASSIGNMENT FAILURE" }, |
| 323 | { GSM48_MT_RR_DTM_REJECT, "DTM REJECT" }, |
| 324 | { GSM48_MT_RR_DTM_REQUEST, "DTM REQUEST" }, |
| 325 | { GSM48_MT_RR_PACKET_ASS, "PACKET ASSIGNMENT" }, |
| 326 | |
| 327 | /* Ciphering messages */ |
| 328 | { GSM48_MT_RR_CIPH_M_CMD, "CIPHERING MODE COMMAND" }, |
| 329 | { GSM48_MT_RR_CIPH_M_COMPL, "CIPHERING MODE COMPLETE" }, |
| 330 | |
| 331 | /* Configuration change messages */ |
| 332 | { GSM48_MT_RR_CFG_CHG_CMD, "CONFIGURATION CHANGE COMMAND" }, |
| 333 | { GSM48_MT_RR_CFG_CHG_ACK, "CONFIGURATION CHANGE ACK" }, |
| 334 | { GSM48_MT_RR_CFG_CHG_REJ, "CONFIGURATION CHANGE REJECT" }, |
| 335 | |
| 336 | /* Handover messages */ |
| 337 | { GSM48_MT_RR_ASS_CMD, "ASSIGNMENT COMMAND" }, |
| 338 | { GSM48_MT_RR_ASS_COMPL, "ASSIGNMENT COMPLETE" }, |
| 339 | { GSM48_MT_RR_ASS_FAIL, "ASSIGNMENT FAILURE" }, |
| 340 | { GSM48_MT_RR_HANDO_CMD, "HANDOVER COMMAND" }, |
| 341 | { GSM48_MT_RR_HANDO_COMPL, "HANDOVER COMPLETE" }, |
| 342 | { GSM48_MT_RR_HANDO_FAIL, "HANDOVER FAILURE" }, |
| 343 | { GSM48_MT_RR_HANDO_INFO, "PHYSICAL INFORMATION" }, |
| 344 | { GSM48_MT_RR_DTM_ASS_CMD, "DTM ASSIGNMENT COMMAND" }, |
| 345 | |
| 346 | { GSM48_MT_RR_CELL_CHG_ORDER, "RR-CELL CHANGE ORDER" }, |
| 347 | { GSM48_MT_RR_PDCH_ASS_CMD, "PDCH ASSIGNMENT COMMAND" }, |
| 348 | |
| 349 | /* Channel release messages */ |
| 350 | { GSM48_MT_RR_CHAN_REL, "CHANNEL RELEASE" }, |
| 351 | { GSM48_MT_RR_PART_REL, "PARTIAL RELEASE" }, |
| 352 | { GSM48_MT_RR_PART_REL_COMP, "PARTIAL RELEASE COMPLETE" }, |
| 353 | |
| 354 | /* Paging and Notification messages */ |
| 355 | { GSM48_MT_RR_PAG_REQ_1, "PAGING REQUEST TYPE 1" }, |
| 356 | { GSM48_MT_RR_PAG_REQ_2, "PAGING REQUEST TYPE 2" }, |
| 357 | { GSM48_MT_RR_PAG_REQ_3, "PAGING REQUEST TYPE 3" }, |
| 358 | { GSM48_MT_RR_PAG_RESP, "PAGING RESPONSE" }, |
| 359 | { GSM48_MT_RR_NOTIF_NCH, "NOTIFICATION/NCH" }, |
| 360 | { GSM48_MT_RR_NOTIF_FACCH, "(Reserved)" }, |
| 361 | { GSM48_MT_RR_NOTIF_RESP, "NOTIFICATION/RESPONSE" }, |
| 362 | { GSM48_MT_RR_PACKET_NOTIF, "PACKET NOTIFICATION" }, |
| 363 | /* 3G Specific messages */ |
| 364 | { GSM48_MT_RR_UTRAN_CLSM_CHG, "UTRAN Classmark Change" }, |
| 365 | { GSM48_MT_RR_CDMA2K_CLSM_CHG, "cdma 2000 Classmark Change" }, |
| 366 | { GSM48_MT_RR_IS_TO_UTRAN_HANDO, "Inter System to UTRAN Handover Command" }, |
| 367 | { GSM48_MT_RR_IS_TO_CDMA2K_HANDO, "Inter System to cdma2000 Handover Command" }, |
| 368 | |
| 369 | /* System information messages */ |
| 370 | { GSM48_MT_RR_SYSINFO_8, "SYSTEM INFORMATION TYPE 8" }, |
| 371 | { GSM48_MT_RR_SYSINFO_1, "SYSTEM INFORMATION TYPE 1" }, |
| 372 | { GSM48_MT_RR_SYSINFO_2, "SYSTEM INFORMATION TYPE 2" }, |
| 373 | { GSM48_MT_RR_SYSINFO_3, "SYSTEM INFORMATION TYPE 3" }, |
| 374 | { GSM48_MT_RR_SYSINFO_4, "SYSTEM INFORMATION TYPE 4" }, |
| 375 | { GSM48_MT_RR_SYSINFO_5, "SYSTEM INFORMATION TYPE 5" }, |
| 376 | { GSM48_MT_RR_SYSINFO_6, "SYSTEM INFORMATION TYPE 6" }, |
| 377 | { GSM48_MT_RR_SYSINFO_7, "SYSTEM INFORMATION TYPE 7" }, |
| 378 | { GSM48_MT_RR_SYSINFO_2bis, "SYSTEM INFORMATION TYPE 2bis" }, |
| 379 | { GSM48_MT_RR_SYSINFO_2ter, "SYSTEM INFORMATION TYPE 2ter" }, |
| 380 | { GSM48_MT_RR_SYSINFO_2quater, "SYSTEM INFORMATION TYPE 2quater" }, |
| 381 | { GSM48_MT_RR_SYSINFO_5bis, "SYSTEM INFORMATION TYPE 5bis" }, |
| 382 | { GSM48_MT_RR_SYSINFO_5ter, "SYSTEM INFORMATION TYPE 5ter" }, |
| 383 | { GSM48_MT_RR_SYSINFO_9, "SYSTEM INFORMATION TYPE 9" }, |
| 384 | { GSM48_MT_RR_SYSINFO_13, "SYSTEM INFORMATION TYPE 13" }, |
| 385 | { GSM48_MT_RR_SYSINFO_16, "SYSTEM INFORMATION TYPE 16" }, |
| 386 | { GSM48_MT_RR_SYSINFO_17, "SYSTEM INFORMATION TYPE 17" }, |
| 387 | { GSM48_MT_RR_SYSINFO_18, "SYSTEM INFORMATION TYPE 18" }, |
| 388 | { GSM48_MT_RR_SYSINFO_19, "SYSTEM INFORMATION TYPE 19" }, |
| 389 | { GSM48_MT_RR_SYSINFO_20, "SYSTEM INFORMATION TYPE 20" }, |
| 390 | |
| 391 | /* Miscellaneous messages */ |
| 392 | { GSM48_MT_RR_CHAN_MODE_MODIF, "CHANNEL MODE MODIFY" }, |
| 393 | { GSM48_MT_RR_STATUS, "RR STATUS" }, |
| 394 | { GSM48_MT_RR_CHAN_MODE_MODIF_ACK, "CHANNEL MODE MODIFY ACKNOWLEDGE" }, |
| 395 | { GSM48_MT_RR_FREQ_REDEF, "FREQUENCY REDEFINITION" }, |
| 396 | { GSM48_MT_RR_MEAS_REP, "MEASUREMENT REPORT" }, |
| 397 | { GSM48_MT_RR_CLSM_CHG, "CLASSMARK CHANGE" }, |
| 398 | { GSM48_MT_RR_CLSM_ENQ, "CLASSMARK ENQUIRY" }, |
| 399 | { GSM48_MT_RR_EXT_MEAS_REP, "EXTENDED MEASUREMENT REPORT" }, |
| 400 | { GSM48_MT_RR_EXT_MEAS_REP_ORD, "EXTENDED MEASUREMENT ORDER" }, |
| 401 | { GSM48_MT_RR_GPRS_SUSP_REQ, "GPRS SUSPENSION REQUEST" }, |
| 402 | { GSM48_MT_RR_DTM_INFO, "DTM INFORMATION" }, |
| 403 | |
| 404 | /* VGCS uplink control messages */ |
| 405 | { GSM48_MT_RR_VGCS_UPL_GRANT, "VGCS UPLINK GRANT" }, |
| 406 | { GSM48_MT_RR_UPLINK_RELEASE, "UPLINK RELEASE" }, |
| 407 | { GSM48_MT_RR_UPLINK_FREE, "0c" }, |
| 408 | { GSM48_MT_RR_UPLINK_BUSY, "UPLINK BUSY" }, |
| 409 | { GSM48_MT_RR_TALKER_IND, "TALKER INDICATION" }, |
| 410 | |
| 411 | /* Application messages */ |
| 412 | { GSM48_MT_RR_APP_INFO, "Application Information" }, |
| 413 | { 0, NULL } |
| 414 | }; |
| 415 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 416 | /*! return string representation of RR Message Type */ |
Philipp | 72e43f0 | 2016-10-27 13:35:20 +0200 | [diff] [blame] | 417 | const char *gsm48_rr_msg_name(uint8_t msgtype) |
| 418 | { |
| 419 | return get_value_string(rr_msg_names, msgtype); |
| 420 | } |
| 421 | |
| 422 | |
Max | fb348ee | 2016-03-30 21:14:53 +0200 | [diff] [blame] | 423 | const struct value_string gsm48_chan_mode_names[] = { |
| 424 | { GSM48_CMODE_SIGN, "SIGNALLING" }, |
| 425 | { GSM48_CMODE_SPEECH_V1, "SPEECH_V1" }, |
| 426 | { GSM48_CMODE_SPEECH_EFR, "SPEECH_EFR" }, |
| 427 | { GSM48_CMODE_SPEECH_AMR, "SPEECH_AMR" }, |
| 428 | { GSM48_CMODE_DATA_14k5, "DATA_14k5" }, |
| 429 | { GSM48_CMODE_DATA_12k0, "DATA_12k0" }, |
| 430 | { GSM48_CMODE_DATA_6k0, "DATA_6k0" }, |
| 431 | { GSM48_CMODE_DATA_3k6, "DATA_3k6" }, |
| 432 | { 0, NULL }, |
| 433 | }; |
| 434 | |
| 435 | const struct value_string gsm_chan_t_names[] = { |
| 436 | { GSM_LCHAN_NONE, "NONE" }, |
| 437 | { GSM_LCHAN_SDCCH, "SDCCH" }, |
| 438 | { GSM_LCHAN_TCH_F, "TCH_F" }, |
| 439 | { GSM_LCHAN_TCH_H, "TCH_H" }, |
| 440 | { GSM_LCHAN_UNKNOWN, "UNKNOWN" }, |
| 441 | { GSM_LCHAN_CCCH, "CCCH" }, |
| 442 | { GSM_LCHAN_PDTCH, "PDTCH" }, |
| 443 | { GSM_LCHAN_CBCH, "CBCH" }, |
| 444 | { 0, NULL }, |
| 445 | }; |
| 446 | |
Harald Welte | 1a8c4e0 | 2015-08-16 17:56:25 +0200 | [diff] [blame] | 447 | static const struct value_string mi_type_names[] = { |
| 448 | { GSM_MI_TYPE_NONE, "NONE" }, |
| 449 | { GSM_MI_TYPE_IMSI, "IMSI" }, |
| 450 | { GSM_MI_TYPE_IMEI, "IMEI" }, |
| 451 | { GSM_MI_TYPE_IMEISV, "IMEI-SV" }, |
| 452 | { GSM_MI_TYPE_TMSI, "TMSI" }, |
| 453 | { 0, NULL } |
| 454 | }; |
| 455 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 456 | /*! return string representation of Mobile Identity Type */ |
Harald Welte | 1a8c4e0 | 2015-08-16 17:56:25 +0200 | [diff] [blame] | 457 | const char *gsm48_mi_type_name(uint8_t mi) |
| 458 | { |
| 459 | return get_value_string(mi_type_names, mi); |
| 460 | } |
| 461 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 462 | /*! Deprecated, see osmo_mobile_identity instead. |
| 463 | * Return a human readable representation of a Mobile Identity in caller-provided buffer. |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 464 | * \param[out] buf caller-provided output buffer |
| 465 | * \param[in] buf_len size of buf in bytes |
Neels Hofmeyr | 02fd83d | 2019-01-05 00:38:54 +0100 | [diff] [blame] | 466 | * \param[in] mi Mobile Identity buffer containing 3GPP TS 04.08 style MI type and data. |
| 467 | * \param[in] mi_len Length of mi. |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 468 | * \return buf |
Neels Hofmeyr | 02fd83d | 2019-01-05 00:38:54 +0100 | [diff] [blame] | 469 | */ |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 470 | char *osmo_mi_name_buf(char *buf, size_t buf_len, const uint8_t *mi, uint8_t mi_len) |
Neels Hofmeyr | 02fd83d | 2019-01-05 00:38:54 +0100 | [diff] [blame] | 471 | { |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 472 | uint8_t mi_type; |
| 473 | uint32_t tmsi; |
| 474 | char mi_string[GSM48_MI_SIZE]; |
| 475 | |
| 476 | mi_type = (mi && mi_len) ? (mi[0] & GSM_MI_TYPE_MASK) : GSM_MI_TYPE_NONE; |
| 477 | |
| 478 | switch (mi_type) { |
| 479 | case GSM_MI_TYPE_TMSI: |
| 480 | /* Table 10.5.4.3, reverse generate_mid_from_tmsi */ |
| 481 | if (mi_len == GSM48_TMSI_LEN && mi[0] == (0xf0 | GSM_MI_TYPE_TMSI)) { |
| 482 | tmsi = osmo_load32be(&mi[1]); |
| 483 | snprintf(buf, buf_len, "TMSI-0x%08" PRIX32, tmsi); |
| 484 | } else { |
| 485 | snprintf(buf, buf_len, "TMSI-invalid"); |
| 486 | } |
| 487 | return buf; |
| 488 | |
| 489 | case GSM_MI_TYPE_IMSI: |
| 490 | case GSM_MI_TYPE_IMEI: |
| 491 | case GSM_MI_TYPE_IMEISV: |
| 492 | osmo_bcd2str(mi_string, sizeof(mi_string), mi, 1, (mi_len * 2) - (mi[0] & GSM_MI_ODD ? 0 : 1), true); |
| 493 | snprintf(buf, buf_len, "%s-%s", gsm48_mi_type_name(mi_type), mi_string); |
| 494 | return buf; |
| 495 | |
| 496 | default: |
Neels Hofmeyr | 6d67032 | 2020-05-26 03:12:29 +0200 | [diff] [blame] | 497 | snprintf(buf, buf_len, "unknown"); |
| 498 | return buf; |
Neels Hofmeyr | 02fd83d | 2019-01-05 00:38:54 +0100 | [diff] [blame] | 499 | } |
| 500 | } |
| 501 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 502 | /*! Deprecated, see osmo_mobile_identity instead. |
| 503 | * Return a human readable representation of a Mobile Identity in static buffer. |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 504 | * \param[in] mi Mobile Identity buffer containing 3GPP TS 04.08 style MI type and data. |
| 505 | * \param[in] mi_len Length of mi. |
| 506 | * \return A string like "IMSI-1234567", "TMSI-0x1234ABCD" or "unknown", "TMSI-invalid"... |
| 507 | */ |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 508 | const char *osmo_mi_name(const uint8_t *mi, uint8_t mi_len) |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 509 | { |
Harald Welte | 171ef82 | 2019-03-28 10:49:05 +0100 | [diff] [blame] | 510 | static __thread char mi_name[10 + GSM48_MI_SIZE + 1]; |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 511 | return osmo_mi_name_buf(mi_name, sizeof(mi_name), mi, mi_len); |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 512 | } |
| 513 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 514 | /*! Deprecated, see osmo_mobile_identity instead. |
| 515 | * Return a human readable representation of a Mobile Identity in dynamically-allocated buffer. |
Harald Welte | 179f357 | 2019-03-18 18:38:47 +0100 | [diff] [blame] | 516 | * \param[in] ctx talloc context from which to allocate output buffer |
| 517 | * \param[in] mi Mobile Identity buffer containing 3GPP TS 04.08 style MI type and data. |
| 518 | * \param[in] mi_len Length of mi. |
| 519 | * \return A string like "IMSI-1234567", "TMSI-0x1234ABCD" or "unknown", "TMSI-invalid" in a |
| 520 | * dynamically-allocated output buffer. |
| 521 | */ |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 522 | char *osmo_mi_name_c(const void *ctx, const uint8_t *mi, uint8_t mi_len) |
Harald Welte | 179f357 | 2019-03-18 18:38:47 +0100 | [diff] [blame] | 523 | { |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 524 | size_t buf_len = 10 + GSM48_MI_SIZE + 1; |
| 525 | char *mi_name = talloc_size(ctx, buf_len); |
| 526 | if (!mi_name) |
| 527 | return NULL; |
| 528 | return osmo_mi_name_buf(mi_name, buf_len, mi, mi_len); |
Harald Welte | 179f357 | 2019-03-18 18:38:47 +0100 | [diff] [blame] | 529 | } |
| 530 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 531 | /*! Extract Mobile Identity from encoded bytes (3GPP TS 24.008 10.5.1.4). |
| 532 | * |
| 533 | * On failure (negative return value), mi->type == GSM_MI_TYPE_NONE, mi->string[] is all-zero and mi->tmsi == |
| 534 | * GSM_RESERVED_TMSI. |
| 535 | * |
| 536 | * On success, mi->type reflects the decoded Mobile Identity type (GSM_MI_TYPE_IMSI, GSM_MI_TYPE_TMSI, GSM_MI_TYPE_IMEI |
| 537 | * or GSM_MI_TYPE_IMEISV). |
| 538 | * |
| 539 | * On success, mi->string always contains a human readable representation of the Mobile Identity digits: IMSI, IMEI and |
| 540 | * IMEISV as digits like "12345678", and TMSI as "0x" and 8 hexadecimal digits like "0x1234abcd". |
| 541 | * |
| 542 | * mi->tmsi contains the uint32_t TMSI value iff the extracted Mobile Identity was a TMSI, or GSM_RESERVED_TMSI |
| 543 | * otherwise. |
| 544 | * |
| 545 | * \param[out] mi Return buffer for decoded Mobile Identity. |
| 546 | * \param[in] mi_data The encoded Mobile Identity octets. |
| 547 | * \param[in] mi_len Number of octets in mi_data. |
| 548 | * \param[in] allow_hex If false, hexadecimal digits (>9) result in an error return value. |
| 549 | * \returns 0 on success, negative on error: -EBADMSG = invalid length indication or invalid data, |
| 550 | * -EINVAL = unknown Mobile Identity type. |
| 551 | */ |
| 552 | int osmo_mobile_identity_decode(struct osmo_mobile_identity *mi, const uint8_t *mi_data, uint8_t mi_len, |
| 553 | bool allow_hex) |
| 554 | { |
| 555 | int rc; |
| 556 | int nibbles_len; |
| 557 | char *str; |
| 558 | size_t str_size; |
| 559 | |
| 560 | if (!mi_data || mi_len < 1) |
| 561 | return -EBADMSG; |
| 562 | |
| 563 | nibbles_len = (mi_len - 1) * 2 + ((mi_data[0] & GSM_MI_ODD) ? 1 : 0); |
| 564 | |
| 565 | *mi = (struct osmo_mobile_identity){ |
| 566 | .type = mi_data[0] & GSM_MI_TYPE_MASK, |
| 567 | }; |
| 568 | |
| 569 | /* First do length checks */ |
| 570 | switch (mi->type) { |
| 571 | case GSM_MI_TYPE_TMSI: |
| 572 | mi->tmsi = GSM_RESERVED_TMSI; |
| 573 | if (nibbles_len != (GSM23003_TMSI_NUM_BYTES * 2)) { |
| 574 | rc = -EBADMSG; |
| 575 | goto return_error; |
| 576 | } |
| 577 | break; |
| 578 | |
| 579 | case GSM_MI_TYPE_IMSI: |
| 580 | if (nibbles_len < GSM23003_IMSI_MIN_DIGITS || nibbles_len > GSM23003_IMSI_MAX_DIGITS) { |
| 581 | rc = -EBADMSG; |
| 582 | goto return_error; |
| 583 | } |
| 584 | str = mi->imsi; |
| 585 | str_size = sizeof(mi->imsi); |
| 586 | break; |
| 587 | |
| 588 | case GSM_MI_TYPE_IMEI: |
| 589 | if (nibbles_len != GSM23003_IMEI_NUM_DIGITS && nibbles_len != GSM23003_IMEI_NUM_DIGITS_NO_CHK) { |
| 590 | rc = -EBADMSG; |
| 591 | goto return_error; |
| 592 | } |
| 593 | str = mi->imei; |
| 594 | str_size = sizeof(mi->imei); |
| 595 | break; |
| 596 | |
| 597 | case GSM_MI_TYPE_IMEISV: |
| 598 | if (nibbles_len != GSM23003_IMEISV_NUM_DIGITS) { |
| 599 | rc = -EBADMSG; |
| 600 | goto return_error; |
| 601 | } |
| 602 | str = mi->imeisv; |
| 603 | str_size = sizeof(mi->imeisv); |
| 604 | break; |
| 605 | |
| 606 | default: |
| 607 | rc = -EINVAL; |
| 608 | goto return_error; |
| 609 | } |
| 610 | |
| 611 | /* Decode BCD digits */ |
| 612 | switch (mi->type) { |
| 613 | case GSM_MI_TYPE_TMSI: |
| 614 | /* MI is a 32bit integer TMSI. Length has been checked above. */ |
| 615 | if ((mi_data[0] & 0xf0) != 0xf0) { |
| 616 | /* A TMSI always has the first nibble == 0xf */ |
| 617 | rc = -EBADMSG; |
| 618 | goto return_error; |
| 619 | } |
| 620 | mi->tmsi = osmo_load32be(&mi_data[1]); |
| 621 | return 0; |
| 622 | |
| 623 | case GSM_MI_TYPE_IMSI: |
| 624 | case GSM_MI_TYPE_IMEI: |
| 625 | case GSM_MI_TYPE_IMEISV: |
| 626 | /* If the length is even, the last nibble (higher nibble of last octet) must be 0xf */ |
| 627 | if (!(mi_data[0] & GSM_MI_ODD) |
| 628 | && ((mi_data[mi_len - 1] & 0xf0) != 0xf0)) { |
| 629 | rc = -EBADMSG; |
| 630 | goto return_error; |
| 631 | } |
| 632 | rc = osmo_bcd2str(str, str_size, mi_data, 1, 1 + nibbles_len, allow_hex); |
| 633 | /* rc checked below */ |
| 634 | break; |
| 635 | |
| 636 | default: |
| 637 | /* Already handled above, but as future bug paranoia: */ |
| 638 | rc = -EINVAL; |
| 639 | goto return_error; |
| 640 | } |
| 641 | |
| 642 | /* check mi->str printing rc */ |
| 643 | if (rc < 1 || rc >= str_size) { |
| 644 | rc = -EBADMSG; |
| 645 | goto return_error; |
| 646 | } |
| 647 | return 0; |
| 648 | |
| 649 | return_error: |
| 650 | *mi = (struct osmo_mobile_identity){ |
| 651 | .type = GSM_MI_TYPE_NONE, |
| 652 | }; |
| 653 | return rc; |
| 654 | } |
| 655 | |
| 656 | /*! Return the number of encoded Mobile Identity octets, without actually encoding. |
| 657 | * Useful to write tag-length header before encoding the MI. |
| 658 | * \param[in] mi Mobile Identity. |
| 659 | * \param[out] mi_digits If not NULL, store the number of nibbles of used MI data (i.e. strlen(mi->string) or 8 for a TMSI). |
| 660 | * \return octets that osmo_mobile_identity_encode_msgb() will write for this mi. |
| 661 | */ |
| 662 | int osmo_mobile_identity_encoded_len(const struct osmo_mobile_identity *mi, int *mi_digits) |
| 663 | { |
| 664 | int mi_nibbles; |
| 665 | if (!mi) |
| 666 | return -EINVAL; |
| 667 | switch (mi->type) { |
| 668 | case GSM_MI_TYPE_TMSI: |
| 669 | mi_nibbles = GSM23003_TMSI_NUM_BYTES * 2; |
| 670 | break; |
| 671 | case GSM_MI_TYPE_IMSI: |
| 672 | mi_nibbles = strlen(mi->imsi); |
| 673 | if (mi_nibbles < GSM23003_IMSI_MIN_DIGITS |
| 674 | || mi_nibbles > GSM23003_IMSI_MAX_DIGITS) |
| 675 | return -EINVAL; |
| 676 | break; |
| 677 | case GSM_MI_TYPE_IMEI: |
| 678 | mi_nibbles = strlen(mi->imei); |
| 679 | if (mi_nibbles < GSM23003_IMEI_NUM_DIGITS_NO_CHK |
| 680 | || mi_nibbles > GSM23003_IMEI_NUM_DIGITS) |
| 681 | return -EINVAL; |
| 682 | break; |
| 683 | case GSM_MI_TYPE_IMEISV: |
| 684 | mi_nibbles = strlen(mi->imeisv); |
| 685 | if (mi_nibbles != GSM23003_IMEISV_NUM_DIGITS) |
| 686 | return -EINVAL; |
| 687 | break; |
| 688 | default: |
| 689 | return -ENOTSUP; |
| 690 | } |
| 691 | |
| 692 | if (mi_digits) |
| 693 | *mi_digits = mi_nibbles; |
| 694 | |
| 695 | /* one type nibble, plus the MI nibbles, plus a filler nibble to complete the last octet: |
| 696 | * mi_octets = ceil((float)(mi_nibbles + 1) / 2) |
| 697 | */ |
| 698 | return (mi_nibbles + 2) / 2; |
| 699 | } |
| 700 | |
| 701 | /*! Encode Mobile Identity from uint32_t (TMSI) or digits string (all others) (3GPP TS 24.008 10.5.1.4). |
| 702 | * |
| 703 | * \param[out] buf Return buffer for encoded Mobile Identity. |
| 704 | * \param[in] buflen sizeof(buf). |
| 705 | * \param[in] mi Mobile identity to encode. |
| 706 | * \param[in] allow_hex If false, hexadecimal digits (>9) result in an error return value. |
| 707 | * \returns Amount of bytes written to buf, or negative on error. |
| 708 | */ |
| 709 | int osmo_mobile_identity_encode_buf(uint8_t *buf, size_t buflen, const struct osmo_mobile_identity *mi, bool allow_hex) |
| 710 | { |
| 711 | int rc; |
| 712 | int nibbles_len; |
| 713 | int mi_octets; |
| 714 | const char *mi_str; |
| 715 | |
| 716 | if (!buf || !buflen) |
| 717 | return -EIO; |
| 718 | |
| 719 | mi_octets = osmo_mobile_identity_encoded_len(mi, &nibbles_len); |
| 720 | if (mi_octets < 0) |
| 721 | return mi_octets; |
| 722 | if (mi_octets > buflen) |
| 723 | return -ENOSPC; |
| 724 | |
| 725 | buf[0] = (mi->type & GSM_MI_TYPE_MASK) | ((nibbles_len & 1) ? GSM_MI_ODD : 0); |
| 726 | |
| 727 | switch (mi->type) { |
| 728 | case GSM_MI_TYPE_TMSI: |
| 729 | buf[0] |= 0xf0; |
| 730 | osmo_store32be(mi->tmsi, &buf[1]); |
| 731 | return mi_octets; |
| 732 | |
| 733 | case GSM_MI_TYPE_IMSI: |
| 734 | mi_str = mi->imsi; |
| 735 | break; |
| 736 | case GSM_MI_TYPE_IMEI: |
| 737 | mi_str = mi->imei; |
| 738 | break; |
| 739 | case GSM_MI_TYPE_IMEISV: |
| 740 | mi_str = mi->imeisv; |
| 741 | break; |
| 742 | default: |
| 743 | return -ENOTSUP; |
| 744 | } |
| 745 | rc = osmo_str2bcd(buf, buflen, mi_str, 1, -1, allow_hex); |
| 746 | if (rc != mi_octets) |
| 747 | return -EINVAL; |
| 748 | return mi_octets; |
| 749 | } |
| 750 | |
| 751 | /*! Encode Mobile Identity type and BCD digits, appended to a msgb. |
| 752 | * Example to add a GSM48_IE_MOBILE_ID IEI with tag and length to a msgb: |
| 753 | * |
Neels Hofmeyr | 4247c94 | 2020-06-22 17:48:01 +0200 | [diff] [blame] | 754 | * struct osmo_mobile_identity mi = { .type = GSM_MI_TYPE_IMSI }; |
| 755 | * OSMO_STRLCPY_ARRAY(mi.imsi, "1234567890123456"); |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 756 | * uint8_t *l = msgb_tl_put(msg, GSM48_IE_MOBILE_ID); |
| 757 | * int rc = osmo_mobile_identity_encode_msgb(msg, &mi, false); |
| 758 | * if (rc < 0) |
| 759 | * goto error; |
| 760 | * *l = rc; |
| 761 | * |
| 762 | * Example to add a BSSGP_IE_IMSI with tag and variable-size length, where the |
| 763 | * length needs to be known at the time of writing the IE tag-length header: |
| 764 | * |
| 765 | * struct osmo_mobile_identity mi = { .type = GSM_MI_TYPE_IMSI, }; |
| 766 | * OSMO_STRLCPY_ARRAY(mi.imsi, pinfo->imsi); |
| 767 | * msgb_tvl_put(msg, BSSGP_IE_IMSI, osmo_mobile_identity_encoded_len(&mi, NULL)); |
| 768 | * if (osmo_mobile_identity_encode_msgb(msg, &mi, false) < 0) |
| 769 | * goto error; |
| 770 | */ |
| 771 | int osmo_mobile_identity_encode_msgb(struct msgb *msg, const struct osmo_mobile_identity *mi, bool allow_hex) |
| 772 | { |
| 773 | int rc = osmo_mobile_identity_encode_buf(msg->tail, msgb_tailroom(msg), mi, allow_hex); |
| 774 | if (rc < 0) |
| 775 | return rc; |
| 776 | msgb_put(msg, rc); |
| 777 | return rc; |
| 778 | } |
| 779 | |
| 780 | /*! Extract Mobile Identity from a Complete Layer 3 message. |
| 781 | * |
| 782 | * Determine the Mobile Identity data and call osmo_mobile_identity_decode() to return a decoded struct |
| 783 | * osmo_mobile_identity. |
| 784 | * |
| 785 | * \param[out] mi Return buffer for decoded Mobile Identity. |
| 786 | * \param[in] msg The Complete Layer 3 message to extract from (LU, CM Service Req or Paging Resp). |
| 787 | * \returns 0 on success, negative on error: return codes as defined in osmo_mobile_identity_decode(), or |
| 788 | * -ENOTSUP = not a Complete Layer 3 message, |
| 789 | */ |
| 790 | int osmo_mobile_identity_decode_from_l3(struct osmo_mobile_identity *mi, struct msgb *msg, bool allow_hex) |
| 791 | { |
| 792 | const struct gsm48_hdr *gh; |
| 793 | int8_t pdisc = 0; |
| 794 | uint8_t mtype = 0; |
| 795 | const struct gsm48_loc_upd_req *lu; |
| 796 | const uint8_t *cm2_buf; |
| 797 | uint8_t cm2_len; |
| 798 | const uint8_t *mi_start; |
| 799 | const struct gsm48_pag_resp *paging_response; |
| 800 | const uint8_t *mi_data; |
| 801 | uint8_t mi_len; |
| 802 | const struct gsm48_imsi_detach_ind *idi; |
| 803 | |
| 804 | *mi = (struct osmo_mobile_identity){ |
| 805 | .type = GSM_MI_TYPE_NONE, |
| 806 | .tmsi = GSM_RESERVED_TMSI, |
| 807 | }; |
| 808 | |
| 809 | if (msgb_l3len(msg) < sizeof(*gh)) |
| 810 | return -EBADMSG; |
| 811 | |
| 812 | gh = msgb_l3(msg); |
| 813 | pdisc = gsm48_hdr_pdisc(gh); |
| 814 | mtype = gsm48_hdr_msg_type(gh); |
| 815 | |
| 816 | switch (pdisc) { |
| 817 | case GSM48_PDISC_MM: |
| 818 | |
| 819 | switch (mtype) { |
| 820 | case GSM48_MT_MM_LOC_UPD_REQUEST: |
| 821 | /* First make sure that lu-> can be dereferenced */ |
| 822 | if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*lu)) |
| 823 | return -EBADMSG; |
| 824 | |
| 825 | /* Now we know there is enough msgb data to read a lu->mi_len, so also check that */ |
| 826 | lu = (struct gsm48_loc_upd_req*)gh->data; |
| 827 | if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*lu) + lu->mi_len) |
| 828 | return -EBADMSG; |
| 829 | mi_data = lu->mi; |
| 830 | mi_len = lu->mi_len; |
| 831 | goto got_mi; |
| 832 | |
| 833 | case GSM48_MT_MM_CM_SERV_REQ: |
| 834 | case GSM48_MT_MM_CM_REEST_REQ: |
| 835 | /* Unfortunately in Phase1 the Classmark2 length is variable, so we cannot |
| 836 | * just use gsm48_service_request struct, and need to parse it manually. */ |
| 837 | if (msgb_l3len(msg) < sizeof(*gh) + 2) |
| 838 | return -EBADMSG; |
| 839 | |
| 840 | cm2_len = gh->data[1]; |
| 841 | cm2_buf = gh->data + 2; |
| 842 | goto got_cm2; |
| 843 | |
| 844 | case GSM48_MT_MM_IMSI_DETACH_IND: |
| 845 | if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*idi)) |
| 846 | return -EBADMSG; |
| 847 | idi = (struct gsm48_imsi_detach_ind*) gh->data; |
| 848 | mi_data = idi->mi; |
| 849 | mi_len = idi->mi_len; |
| 850 | goto got_mi; |
| 851 | |
| 852 | case GSM48_MT_MM_ID_RESP: |
| 853 | if (msgb_l3len(msg) < sizeof(*gh) + 2) |
| 854 | return -EBADMSG; |
| 855 | mi_data = gh->data+1; |
| 856 | mi_len = gh->data[0]; |
| 857 | goto got_mi; |
| 858 | |
| 859 | default: |
| 860 | break; |
| 861 | } |
| 862 | break; |
| 863 | |
| 864 | case GSM48_PDISC_RR: |
| 865 | |
| 866 | switch (mtype) { |
| 867 | case GSM48_MT_RR_PAG_RESP: |
| 868 | if (msgb_l3len(msg) < sizeof(*gh) + sizeof(*paging_response)) |
| 869 | return -EBADMSG; |
| 870 | paging_response = (struct gsm48_pag_resp*)gh->data; |
| 871 | cm2_len = paging_response->cm2_len; |
| 872 | cm2_buf = (uint8_t*)&paging_response->cm2; |
| 873 | goto got_cm2; |
| 874 | |
| 875 | default: |
| 876 | break; |
| 877 | } |
| 878 | break; |
| 879 | } |
| 880 | |
| 881 | return -ENOTSUP; |
| 882 | |
| 883 | got_cm2: |
| 884 | /* MI (Mobile Identity) LV follows the Classmark2 */ |
| 885 | |
| 886 | /* There must be at least a mi_len byte after the CM2 */ |
| 887 | if (cm2_buf + cm2_len + 1 > msg->tail) |
| 888 | return -EBADMSG; |
| 889 | |
| 890 | mi_start = cm2_buf + cm2_len; |
| 891 | mi_len = mi_start[0]; |
| 892 | mi_data = mi_start + 1; |
| 893 | |
| 894 | got_mi: |
| 895 | /* mi_data points at the start of the Mobile Identity coding of mi_len bytes */ |
| 896 | if (mi_data + mi_len > msg->tail) |
| 897 | return -EBADMSG; |
| 898 | |
| 899 | return osmo_mobile_identity_decode(mi, mi_data, mi_len, allow_hex); |
| 900 | } |
| 901 | |
| 902 | /*! Return a human readable representation of a struct osmo_mobile_identity. |
| 903 | * Write a string like "IMSI-1234567", "TMSI-0x1234ABCD" or "NONE", "NULL". |
| 904 | * \param[out] buf String buffer to write to. |
| 905 | * \param[in] buflen sizeof(buf). |
| 906 | * \param[in] mi Decoded Mobile Identity data. |
| 907 | * \return the strlen() of the string written when buflen is sufficiently large, like snprintf(). |
| 908 | */ |
| 909 | int osmo_mobile_identity_to_str_buf(char *buf, size_t buflen, const struct osmo_mobile_identity *mi) |
| 910 | { |
| 911 | struct osmo_strbuf sb = { .buf = buf, .len = buflen }; |
| 912 | if (!mi) |
| 913 | return snprintf(buf, buflen, "NULL"); |
| 914 | OSMO_STRBUF_PRINTF(sb, "%s", gsm48_mi_type_name(mi->type)); |
| 915 | switch (mi->type) { |
| 916 | case GSM_MI_TYPE_TMSI: |
| 917 | OSMO_STRBUF_PRINTF(sb, "-0x%08" PRIX32, mi->tmsi); |
| 918 | break; |
| 919 | case GSM_MI_TYPE_IMSI: |
| 920 | OSMO_STRBUF_PRINTF(sb, "-%s", mi->imsi); |
| 921 | break; |
| 922 | case GSM_MI_TYPE_IMEI: |
| 923 | OSMO_STRBUF_PRINTF(sb, "-%s", mi->imei); |
| 924 | break; |
| 925 | case GSM_MI_TYPE_IMEISV: |
| 926 | OSMO_STRBUF_PRINTF(sb, "-%s", mi->imeisv); |
| 927 | break; |
| 928 | default: |
| 929 | break; |
| 930 | } |
| 931 | return sb.chars_needed; |
| 932 | } |
| 933 | |
| 934 | /*! Like osmo_mobile_identity_to_str_buf(), but return the string in a talloc buffer. |
| 935 | * \param[in] ctx Talloc context to allocate from. |
| 936 | * \param[in] mi Decoded Mobile Identity data. |
| 937 | * \return a string like "IMSI-1234567", "TMSI-0x1234ABCD" or "NONE", "NULL". |
| 938 | */ |
| 939 | char *osmo_mobile_identity_to_str_c(void *ctx, const struct osmo_mobile_identity *mi) |
| 940 | { |
| 941 | OSMO_NAME_C_IMPL(ctx, 32, "ERROR", osmo_mobile_identity_to_str_buf, mi) |
| 942 | } |
| 943 | |
| 944 | /*! Compare two osmo_mobile_identity structs, returning typical cmp() result. |
| 945 | * \param[in] a Left side osmo_mobile_identity. |
| 946 | * \param[in] b Right side osmo_mobile_identity. |
| 947 | * \returns 0 if both are equal, -1 if a < b, 1 if a > b. |
| 948 | */ |
| 949 | int osmo_mobile_identity_cmp(const struct osmo_mobile_identity *a, const struct osmo_mobile_identity *b) |
| 950 | { |
| 951 | int cmp; |
| 952 | if (a == b) |
| 953 | return 0; |
| 954 | if (!a) |
| 955 | return -1; |
| 956 | if (!b) |
| 957 | return 1; |
| 958 | cmp = OSMO_CMP(a->type, b->type); |
| 959 | if (cmp) |
| 960 | return cmp; |
| 961 | switch (a->type) { |
| 962 | case GSM_MI_TYPE_TMSI: |
| 963 | return OSMO_CMP(a->tmsi, b->tmsi); |
| 964 | case GSM_MI_TYPE_IMSI: |
| 965 | return strncmp(a->imsi, b->imsi, sizeof(a->imsi)); |
| 966 | case GSM_MI_TYPE_IMEI: |
| 967 | return strncmp(a->imei, b->imei, sizeof(a->imei)); |
| 968 | case GSM_MI_TYPE_IMEISV: |
| 969 | return strncmp(a->imeisv, b->imeisv, sizeof(a->imeisv)); |
| 970 | default: |
| 971 | /* No known type, but both have the same type. */ |
| 972 | return 0; |
| 973 | } |
| 974 | } |
| 975 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 976 | /*! Checks is particular message is cipherable in A/Gb mode according to |
Max | fdca25d | 2016-07-05 16:06:28 +0200 | [diff] [blame] | 977 | * 3GPP TS 24.008 § 4.7.1.2 |
| 978 | * \param[in] hdr Message header |
| 979 | * \return true if message can be encrypted, false otherwise |
| 980 | */ |
| 981 | bool gsm48_hdr_gmm_cipherable(const struct gsm48_hdr *hdr) |
| 982 | { |
| 983 | switch(hdr->msg_type) { |
| 984 | case GSM48_MT_GMM_ATTACH_REQ: |
| 985 | case GSM48_MT_GMM_ATTACH_REJ: |
| 986 | case GSM48_MT_GMM_AUTH_CIPH_REQ: |
| 987 | case GSM48_MT_GMM_AUTH_CIPH_RESP: |
| 988 | case GSM48_MT_GMM_AUTH_CIPH_REJ: |
| 989 | case GSM48_MT_GMM_AUTH_CIPH_FAIL: |
| 990 | case GSM48_MT_GMM_ID_REQ: |
| 991 | case GSM48_MT_GMM_ID_RESP: |
| 992 | case GSM48_MT_GMM_RA_UPD_REQ: |
| 993 | case GSM48_MT_GMM_RA_UPD_REJ: |
| 994 | return false; |
| 995 | default: |
| 996 | return true; |
| 997 | } |
| 998 | } |
| 999 | |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1000 | /* Convert MCC + MNC to BCD representation, legacy implementation. |
| 1001 | * Instead use osmo_plmn_to_bcd(), which is also capable of converting |
| 1002 | * 3-digit MNC that have leading zeros. For parameters, also see there. */ |
Neels Hofmeyr | bdccc1b | 2016-03-15 13:28:10 +0100 | [diff] [blame] | 1003 | void gsm48_mcc_mnc_to_bcd(uint8_t *bcd_dst, uint16_t mcc, uint16_t mnc) |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 1004 | { |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1005 | const struct osmo_plmn_id plmn = { |
| 1006 | .mcc = mcc, |
| 1007 | .mnc = mnc, |
| 1008 | .mnc_3_digits = false, |
| 1009 | }; |
| 1010 | osmo_plmn_to_bcd(bcd_dst, &plmn); |
Neels Hofmeyr | bdccc1b | 2016-03-15 13:28:10 +0100 | [diff] [blame] | 1011 | } |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 1012 | |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1013 | /* Convert given 3-byte BCD buffer to integers, legacy implementation. |
| 1014 | * Instead use osmo_plmn_from_bcd(), which is also capable of converting |
| 1015 | * 3-digit MNC that have leading zeros. For parameters, also see there. */ |
Neels Hofmeyr | bdccc1b | 2016-03-15 13:28:10 +0100 | [diff] [blame] | 1016 | void gsm48_mcc_mnc_from_bcd(uint8_t *bcd_src, uint16_t *mcc, uint16_t *mnc) |
| 1017 | { |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1018 | struct osmo_plmn_id plmn; |
| 1019 | osmo_plmn_from_bcd(bcd_src, &plmn); |
| 1020 | *mcc = plmn.mcc; |
| 1021 | *mnc = plmn.mnc; |
Neels Hofmeyr | bdccc1b | 2016-03-15 13:28:10 +0100 | [diff] [blame] | 1022 | } |
| 1023 | |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1024 | /*! Encode TS 04.08 Location Area Identifier, legacy implementation. |
| 1025 | * Instead use gsm48_generate_lai2(), which is capable of three-digit MNC with leading zeros. |
| 1026 | * \param[out] lai48 caller-provided memory for output |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1027 | * \param[in] mcc Mobile Country Code |
| 1028 | * \param[in] mnc Mobile Network Code |
| 1029 | * \param[in] lac Location Area Code */ |
Neels Hofmeyr | bdccc1b | 2016-03-15 13:28:10 +0100 | [diff] [blame] | 1030 | void gsm48_generate_lai(struct gsm48_loc_area_id *lai48, uint16_t mcc, |
| 1031 | uint16_t mnc, uint16_t lac) |
| 1032 | { |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1033 | const struct osmo_location_area_id lai = { |
| 1034 | .plmn = { |
| 1035 | .mcc = mcc, |
| 1036 | .mnc = mnc, |
| 1037 | .mnc_3_digits = false, |
| 1038 | }, |
| 1039 | .lac = lac, |
| 1040 | }; |
| 1041 | gsm48_generate_lai2(lai48, &lai); |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 1042 | } |
| 1043 | |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1044 | /*! Encode TS 04.08 Location Area Identifier. |
| 1045 | * \param[out] lai48 caller-provided memory for output. |
| 1046 | * \param[in] lai input of MCC-MNC-LAC. */ |
| 1047 | void gsm48_generate_lai2(struct gsm48_loc_area_id *lai48, const struct osmo_location_area_id *lai) |
| 1048 | { |
| 1049 | osmo_plmn_to_bcd(&lai48->digits[0], &lai->plmn); |
| 1050 | lai48->lac = osmo_htons(lai->lac); |
| 1051 | } |
| 1052 | |
| 1053 | /*! Decode TS 04.08 Location Area Identifier, legacy implementation. |
| 1054 | * Instead use gsm48_decode_lai2(), which is capable of three-digit MNC with leading zeros. |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1055 | * \param[in] Location Area Identifier (encoded) |
| 1056 | * \param[out] mcc Mobile Country Code |
| 1057 | * \param[out] mnc Mobile Network Code |
| 1058 | * \param[out] lac Location Area Code |
| 1059 | * \returns 0 |
| 1060 | * |
| 1061 | * Attention: this function returns true integers, not hex! */ |
Harald Welte | 774a9de | 2012-07-13 21:35:13 +0200 | [diff] [blame] | 1062 | int gsm48_decode_lai(struct gsm48_loc_area_id *lai, uint16_t *mcc, |
| 1063 | uint16_t *mnc, uint16_t *lac) |
| 1064 | { |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1065 | struct osmo_location_area_id decoded; |
| 1066 | gsm48_decode_lai2(lai, &decoded); |
| 1067 | *mcc = decoded.plmn.mcc; |
| 1068 | *mnc = decoded.plmn.mnc; |
| 1069 | *lac = decoded.lac; |
Harald Welte | 774a9de | 2012-07-13 21:35:13 +0200 | [diff] [blame] | 1070 | return 0; |
| 1071 | } |
| 1072 | |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1073 | /*! Decode TS 04.08 Location Area Identifier. |
| 1074 | * \param[in] Location Area Identifier (encoded). |
| 1075 | * \param[out] decoded Target buffer to write decoded values of MCC-MNC-LAC. |
| 1076 | * |
| 1077 | * Attention: this function returns true integers, not hex! */ |
| 1078 | void gsm48_decode_lai2(const struct gsm48_loc_area_id *lai, struct osmo_location_area_id *decoded) |
| 1079 | { |
| 1080 | osmo_plmn_from_bcd(&lai->digits[0], &decoded->plmn); |
| 1081 | decoded->lac = osmo_ntohs(lai->lac); |
| 1082 | } |
| 1083 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1084 | /*! Set DTX mode in Cell Options IE (3GPP TS 44.018) |
Max | fe65fa7 | 2016-05-10 17:17:05 +0200 | [diff] [blame] | 1085 | * \param[in] op Cell Options structure in which DTX parameters will be set |
| 1086 | * \param[in] full Mode for full-rate channels |
| 1087 | * \param[in] half Mode for half-rate channels |
| 1088 | * \param[in] is_bcch Indicates if we should use 10.5.2.3.1 instead of |
| 1089 | * 10.5.2.3a.2 |
| 1090 | * |
| 1091 | * There is no space for separate DTX settings for Full and Half rate channels |
| 1092 | * in BCCH - in this case full setting is used for both and half parameter is |
| 1093 | * ignored. |
| 1094 | */ |
| 1095 | void gsm48_set_dtx(struct gsm48_cell_options *op, enum gsm48_dtx_mode full, |
| 1096 | enum gsm48_dtx_mode half, bool is_bcch) |
| 1097 | { |
| 1098 | if (is_bcch) { |
| 1099 | switch (full) { |
| 1100 | case GSM48_DTX_MAY_BE_USED: |
| 1101 | op->dtx = 0; |
| 1102 | return; |
| 1103 | case GSM48_DTX_SHALL_BE_USED: |
| 1104 | op->dtx = 1; |
| 1105 | return; |
| 1106 | case GSM48_DTX_SHALL_NOT_BE_USED: |
| 1107 | op->dtx = 2; |
| 1108 | return; |
| 1109 | } |
| 1110 | } else { |
| 1111 | switch (full) { |
| 1112 | case GSM48_DTX_MAY_BE_USED: |
| 1113 | op->dtx = (half == GSM48_DTX_SHALL_BE_USED) ? 3 : 0; |
| 1114 | op->d = (half == GSM48_DTX_SHALL_NOT_BE_USED) ? 0 : 1; |
| 1115 | return; |
| 1116 | case GSM48_DTX_SHALL_BE_USED: |
| 1117 | op->dtx = (half == GSM48_DTX_MAY_BE_USED) ? 3 : 1; |
| 1118 | op->d = (half == GSM48_DTX_SHALL_BE_USED) ? 1 : 0; |
| 1119 | return; |
| 1120 | case GSM48_DTX_SHALL_NOT_BE_USED: |
| 1121 | op->dtx = 2; |
| 1122 | op->d = (half == GSM48_DTX_SHALL_BE_USED) ? 1 : 0; |
| 1123 | return; |
| 1124 | } |
| 1125 | } |
| 1126 | } |
| 1127 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 1128 | /*! Deprecated, see osmo_mobile_identity instead. |
| 1129 | * Generate TS 04.08 Mobile ID from TMSI |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1130 | * \param[out] buf Caller-provided output buffer (7 bytes) |
| 1131 | * \param[in] tmsi TMSI to be encoded |
| 1132 | * \returns number of byes encoded (always 7) */ |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 1133 | int gsm48_generate_mid_from_tmsi(uint8_t *buf, uint32_t tmsi) |
| 1134 | { |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 1135 | uint32_t tmsi_be = osmo_htonl(tmsi); |
| 1136 | |
| 1137 | buf[0] = GSM48_IE_MOBILE_ID; |
| 1138 | buf[1] = GSM48_TMSI_LEN; |
| 1139 | buf[2] = 0xf0 | GSM_MI_TYPE_TMSI; |
| 1140 | memcpy(&buf[3], &tmsi_be, sizeof(tmsi_be)); |
| 1141 | |
| 1142 | return 7; |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 1143 | } |
| 1144 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 1145 | /*! Deprecated, see osmo_mobile_identity instead. |
| 1146 | * Generate TS 24.008 §10.5.1.4 Mobile ID of BCD type from ASCII string |
Harald Welte | 1c3bae1 | 2019-01-20 10:37:49 +0100 | [diff] [blame] | 1147 | * \param[out] buf Caller-provided output buffer of at least GSM48_MID_MAX_SIZE bytes |
Max | ebf1492 | 2018-02-15 11:42:11 +0100 | [diff] [blame] | 1148 | * \param[in] id Identity to be encoded |
Harald Welte | 1c3bae1 | 2019-01-20 10:37:49 +0100 | [diff] [blame] | 1149 | * \param[in] mi_type Type of identity (e.g. GSM_MI_TYPE_IMSI, IMEI, IMEISV) |
Max | ebf1492 | 2018-02-15 11:42:11 +0100 | [diff] [blame] | 1150 | * \returns number of bytes used in \a buf */ |
| 1151 | uint8_t gsm48_generate_mid(uint8_t *buf, const char *id, uint8_t mi_type) |
| 1152 | { |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 1153 | uint8_t length = strnlen(id, 16), i, off = 0, odd = (length & 1) == 1; |
| 1154 | /* maximum length == 16 (IMEISV) */ |
| 1155 | |
| 1156 | buf[0] = GSM48_IE_MOBILE_ID; |
| 1157 | buf[2] = osmo_char2bcd(id[0]) << 4 | (mi_type & GSM_MI_TYPE_MASK) | (odd << 3); |
| 1158 | |
| 1159 | /* if the length is even we will fill half of the last octet */ |
| 1160 | buf[1] = (length + (odd ? 1 : 2)) >> 1; |
| 1161 | /* buf[1] maximum = 18/2 = 9 */ |
| 1162 | OSMO_ASSERT(buf[1] <= 9); |
| 1163 | |
| 1164 | for (i = 1; i < buf[1]; ++i) { |
| 1165 | uint8_t upper, lower = osmo_char2bcd(id[++off]); |
| 1166 | if (!odd && off + 1 == length) |
| 1167 | upper = 0x0f; |
| 1168 | else |
| 1169 | upper = osmo_char2bcd(id[++off]) & 0x0f; |
| 1170 | |
| 1171 | buf[2 + i] = (upper << 4) | lower; |
Max | ebf1492 | 2018-02-15 11:42:11 +0100 | [diff] [blame] | 1172 | } |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 1173 | |
| 1174 | /* maximum return value: 2 + 9 = 11 */ |
| 1175 | return 2 + buf[1]; |
Max | ebf1492 | 2018-02-15 11:42:11 +0100 | [diff] [blame] | 1176 | } |
| 1177 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 1178 | /*! Deprecated, see osmo_mobile_identity instead. |
| 1179 | * Generate TS 04.08 Mobile ID from IMSI |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1180 | * \param[out] buf Caller-provided output buffer |
| 1181 | * \param[in] imsi IMSI to be encoded |
| 1182 | * \returns number of bytes used in \a buf */ |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 1183 | int gsm48_generate_mid_from_imsi(uint8_t *buf, const char *imsi) |
| 1184 | { |
Harald Welte | a13fb75 | 2020-06-16 08:44:42 +0200 | [diff] [blame] | 1185 | return gsm48_generate_mid(buf, imsi, GSM_MI_TYPE_IMSI); |
Harald Welte | 61e2bfc | 2010-03-04 10:53:03 +0100 | [diff] [blame] | 1186 | } |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1187 | |
Neels Hofmeyr | 83025bf | 2020-05-26 02:45:23 +0200 | [diff] [blame] | 1188 | /*! Deprecated, see osmo_mobile_identity instead. |
| 1189 | * Convert TS 04.08 Mobile Identity (10.5.1.4) to string. |
Neels Hofmeyr | 627e011 | 2018-12-05 21:32:40 +0100 | [diff] [blame] | 1190 | * This function does not validate the Mobile Identity digits, i.e. digits > 9 are returned as 'A'-'F'. |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1191 | * \param[out] string Caller-provided buffer for output |
| 1192 | * \param[in] str_len Length of \a string in bytes |
| 1193 | * \param[in] mi Mobile Identity to be stringified |
| 1194 | * \param[in] mi_len Length of \a mi in bytes |
Neels Hofmeyr | 512bf02 | 2020-05-25 23:05:04 +0200 | [diff] [blame] | 1195 | * \returns Return <= 0 on error, > 0 on success. |
| 1196 | * WARNING: the return value of this function is not well implemented. |
Neels Hofmeyr | 6aa20ee | 2018-12-06 00:40:37 +0100 | [diff] [blame] | 1197 | * Depending on the MI type and amount of output buffer, this may return |
| 1198 | * the nr of written bytes, or the written strlen(), or the snprintf() |
Neels Hofmeyr | 512bf02 | 2020-05-25 23:05:04 +0200 | [diff] [blame] | 1199 | * style strlen()-if-the-buffer-were-large-enough. |
| 1200 | */ |
Vadim Yanitskiy | 0d8da79 | 2019-07-25 19:12:23 +0700 | [diff] [blame] | 1201 | int gsm48_mi_to_string(char *string, int str_len, const uint8_t *mi, int mi_len) |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1202 | { |
Neels Hofmeyr | 627e011 | 2018-12-05 21:32:40 +0100 | [diff] [blame] | 1203 | int rc; |
Harald Welte | 163d0ea | 2010-04-09 07:57:40 +0200 | [diff] [blame] | 1204 | uint8_t mi_type; |
Harald Welte | 163d0ea | 2010-04-09 07:57:40 +0200 | [diff] [blame] | 1205 | uint32_t tmsi; |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1206 | |
Neels Hofmeyr | 6adffb9 | 2018-12-05 23:30:31 +0100 | [diff] [blame] | 1207 | mi_type = (mi && mi_len) ? (mi[0] & GSM_MI_TYPE_MASK) : GSM_MI_TYPE_NONE; |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1208 | |
| 1209 | switch (mi_type) { |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1210 | case GSM_MI_TYPE_TMSI: |
Holger Freyther | 45abec2 | 2016-05-20 19:21:27 +0000 | [diff] [blame] | 1211 | /* Table 10.5.4.3, reverse generate_mid_from_tmsi */ |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1212 | if (mi_len == GSM48_TMSI_LEN && mi[0] == (0xf0 | GSM_MI_TYPE_TMSI)) { |
Harald Welte | 95871da | 2017-05-15 12:11:36 +0200 | [diff] [blame] | 1213 | tmsi = osmo_load32be(&mi[1]); |
Pau Espin Pedrol | 4573502 | 2017-06-18 14:05:24 +0200 | [diff] [blame] | 1214 | return snprintf(string, str_len, "%"PRIu32, tmsi); |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1215 | } |
| 1216 | break; |
| 1217 | case GSM_MI_TYPE_IMSI: |
| 1218 | case GSM_MI_TYPE_IMEI: |
| 1219 | case GSM_MI_TYPE_IMEISV: |
Neels Hofmeyr | 627e011 | 2018-12-05 21:32:40 +0100 | [diff] [blame] | 1220 | rc = osmo_bcd2str(string, str_len, mi, |
| 1221 | 1, mi_len * 2 - ((mi[0] & GSM_MI_ODD) ? 0 : 1), true); |
| 1222 | /* osmo_bcd2str() returns snprintf style strlen(), this returns bytes written. */ |
| 1223 | if (rc < 0) |
| 1224 | return 0; |
| 1225 | else if (rc < str_len) |
| 1226 | return rc + 1; |
| 1227 | else |
| 1228 | return strlen(string) + 1; |
Neels Hofmeyr | ea2a0ab | 2018-12-05 23:30:08 +0100 | [diff] [blame] | 1229 | |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1230 | default: |
| 1231 | break; |
| 1232 | } |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1233 | |
Neels Hofmeyr | ea2a0ab | 2018-12-05 23:30:08 +0100 | [diff] [blame] | 1234 | if (str_len < 1) |
| 1235 | return 0; |
| 1236 | *string = '\0'; |
| 1237 | return 1; |
Harald Welte | 9bb553e | 2010-03-28 18:14:50 +0800 | [diff] [blame] | 1238 | } |
Harald Welte | a1c4f76 | 2010-05-01 11:59:42 +0200 | [diff] [blame] | 1239 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1240 | /*! Parse TS 04.08 Routing Area Identifier |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1241 | * \param[out] Caller-provided memory for decoded RA ID |
| 1242 | * \param[in] buf Input buffer pointing to RAI IE value */ |
Harald Welte | a1c4f76 | 2010-05-01 11:59:42 +0200 | [diff] [blame] | 1243 | void gsm48_parse_ra(struct gprs_ra_id *raid, const uint8_t *buf) |
| 1244 | { |
| 1245 | raid->mcc = (buf[0] & 0xf) * 100; |
| 1246 | raid->mcc += (buf[0] >> 4) * 10; |
| 1247 | raid->mcc += (buf[1] & 0xf) * 1; |
| 1248 | |
| 1249 | /* I wonder who came up with the stupidity of encoding the MNC |
| 1250 | * differently depending on how many digits its decimal number has! */ |
| 1251 | if ((buf[1] >> 4) == 0xf) { |
| 1252 | raid->mnc = (buf[2] & 0xf) * 10; |
| 1253 | raid->mnc += (buf[2] >> 4) * 1; |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1254 | raid->mnc_3_digits = false; |
Harald Welte | a1c4f76 | 2010-05-01 11:59:42 +0200 | [diff] [blame] | 1255 | } else { |
| 1256 | raid->mnc = (buf[2] & 0xf) * 100; |
| 1257 | raid->mnc += (buf[2] >> 4) * 10; |
| 1258 | raid->mnc += (buf[1] >> 4) * 1; |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1259 | raid->mnc_3_digits = true; |
Harald Welte | a1c4f76 | 2010-05-01 11:59:42 +0200 | [diff] [blame] | 1260 | } |
| 1261 | |
Harald Welte | 95871da | 2017-05-15 12:11:36 +0200 | [diff] [blame] | 1262 | raid->lac = osmo_load16be(buf + 3); |
Harald Welte | a1c4f76 | 2010-05-01 11:59:42 +0200 | [diff] [blame] | 1263 | raid->rac = buf[5]; |
| 1264 | } |
Harald Welte | 35a9394 | 2010-05-01 14:25:22 +0200 | [diff] [blame] | 1265 | |
Max | f1ad60e | 2018-01-05 14:19:33 +0100 | [diff] [blame] | 1266 | /*! Encode a 3GPP TS 24.008 § 10.5.5.15 Routing area identification |
| 1267 | * \param[out] out Caller-provided packed struct |
| 1268 | * \param[in] raid Routing Area ID to be encoded |
| 1269 | */ |
| 1270 | void gsm48_encode_ra(struct gsm48_ra_id *out, const struct gprs_ra_id *raid) |
| 1271 | { |
| 1272 | out->lac = osmo_htons(raid->lac); |
| 1273 | out->rac = raid->rac; |
| 1274 | |
| 1275 | out->digits[0] = ((raid->mcc / 100) % 10) | (((raid->mcc / 10) % 10) << 4); |
| 1276 | out->digits[1] = raid->mcc % 10; |
| 1277 | |
Neels Hofmeyr | c4fce14 | 2018-02-20 13:47:08 +0100 | [diff] [blame] | 1278 | if (raid->mnc < 100 && !raid->mnc_3_digits) { |
Max | f1ad60e | 2018-01-05 14:19:33 +0100 | [diff] [blame] | 1279 | out->digits[1] |= 0xf0; |
| 1280 | out->digits[2] = ((raid->mnc / 10) % 10) | ((raid->mnc % 10) << 4); |
| 1281 | } else { |
| 1282 | out->digits[1] |= (raid->mnc % 10) << 4; |
| 1283 | out->digits[2] = ((raid->mnc / 100) % 10) | (((raid->mnc / 10) % 10) << 4); |
| 1284 | } |
| 1285 | } |
| 1286 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1287 | /*! Encode a TS 04.08 Routing Area Identifier |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1288 | * \param[out] buf Caller-provided output buffer of 6 bytes |
| 1289 | * \param[in] raid Routing Area ID to be encoded |
| 1290 | * \returns number of bytes used in \a buf */ |
Harald Welte | 35a9394 | 2010-05-01 14:25:22 +0200 | [diff] [blame] | 1291 | int gsm48_construct_ra(uint8_t *buf, const struct gprs_ra_id *raid) |
| 1292 | { |
Max | f1ad60e | 2018-01-05 14:19:33 +0100 | [diff] [blame] | 1293 | gsm48_encode_ra((struct gsm48_ra_id *)buf, raid); |
Harald Welte | 35a9394 | 2010-05-01 14:25:22 +0200 | [diff] [blame] | 1294 | |
| 1295 | return 6; |
| 1296 | } |
Harald Welte | 2aee7b1 | 2011-06-26 14:20:04 +0200 | [diff] [blame] | 1297 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1298 | /*! Determine number of paging sub-channels |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1299 | * \param[in] chan_desc Control Channel Description |
| 1300 | * \returns number of paging sub-channels |
| 1301 | * |
| 1302 | * Uses From Table 10.5.33 of GSM 04.08 to determine the number of |
| 1303 | * paging sub-channels in the given control channel configuration |
| 1304 | */ |
Harald Welte | 2aee7b1 | 2011-06-26 14:20:04 +0200 | [diff] [blame] | 1305 | int gsm48_number_of_paging_subchannels(struct gsm48_control_channel_descr *chan_desc) |
| 1306 | { |
Harald Welte | 94df39e | 2011-06-26 14:33:57 +0200 | [diff] [blame] | 1307 | unsigned int n_pag_blocks = gsm0502_get_n_pag_blocks(chan_desc); |
| 1308 | |
| 1309 | if (chan_desc->ccch_conf == RSL_BCCH_CCCH_CONF_1_C) |
| 1310 | return OSMO_MAX(1, n_pag_blocks) * (chan_desc->bs_pa_mfrms + 2); |
| 1311 | else |
| 1312 | return n_pag_blocks * (chan_desc->bs_pa_mfrms + 2); |
Harald Welte | 2aee7b1 | 2011-06-26 14:20:04 +0200 | [diff] [blame] | 1313 | } |
Neels Hofmeyr | dbd994c | 2017-03-09 23:07:02 +0100 | [diff] [blame] | 1314 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1315 | /*! TS 04.08 Protocol Descriptor names */ |
Neels Hofmeyr | dbd994c | 2017-03-09 23:07:02 +0100 | [diff] [blame] | 1316 | const struct value_string gsm48_pdisc_names[] = { |
Harald Welte | ea0bc96 | 2018-01-24 16:17:45 +0100 | [diff] [blame] | 1317 | { GSM48_PDISC_GROUP_CC, "VGCC" }, |
| 1318 | { GSM48_PDISC_BCAST_CC, "VBCC" }, |
| 1319 | { GSM48_PDISC_PDSS1, "PDSS1" }, |
| 1320 | { GSM48_PDISC_CC, "CC" }, |
| 1321 | { GSM48_PDISC_PDSS2, "PDSS2" }, |
| 1322 | { GSM48_PDISC_MM, "MM" }, |
| 1323 | { GSM48_PDISC_RR, "RR" }, |
| 1324 | { GSM48_PDISC_MM_GPRS, "GMM" }, |
| 1325 | { GSM48_PDISC_SMS, "SMS" }, |
| 1326 | { GSM48_PDISC_SM_GPRS, "SM" }, |
| 1327 | { GSM48_PDISC_NC_SS, "NCSS" }, |
| 1328 | { GSM48_PDISC_LOC, "LCS" }, |
| 1329 | { GSM48_PDISC_EXTEND, "EXTD" }, |
| 1330 | { GSM48_PDISC_MASK, "MASK" }, |
Neels Hofmeyr | dbd994c | 2017-03-09 23:07:02 +0100 | [diff] [blame] | 1331 | { 0, NULL } |
| 1332 | }; |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1333 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1334 | /*! TS 04.08 RR Message Type names */ |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1335 | const struct value_string gsm48_rr_msgtype_names[] = { |
| 1336 | OSMO_VALUE_STRING(GSM48_MT_RR_INIT_REQ), |
| 1337 | OSMO_VALUE_STRING(GSM48_MT_RR_ADD_ASS), |
| 1338 | OSMO_VALUE_STRING(GSM48_MT_RR_IMM_ASS), |
| 1339 | OSMO_VALUE_STRING(GSM48_MT_RR_IMM_ASS_EXT), |
| 1340 | OSMO_VALUE_STRING(GSM48_MT_RR_IMM_ASS_REJ), |
| 1341 | OSMO_VALUE_STRING(GSM48_MT_RR_DTM_ASS_FAIL), |
| 1342 | OSMO_VALUE_STRING(GSM48_MT_RR_DTM_REJECT), |
| 1343 | OSMO_VALUE_STRING(GSM48_MT_RR_DTM_REQUEST), |
| 1344 | OSMO_VALUE_STRING(GSM48_MT_RR_PACKET_ASS), |
| 1345 | |
| 1346 | OSMO_VALUE_STRING(GSM48_MT_RR_CIPH_M_CMD), |
| 1347 | OSMO_VALUE_STRING(GSM48_MT_RR_CIPH_M_COMPL), |
| 1348 | |
| 1349 | OSMO_VALUE_STRING(GSM48_MT_RR_CFG_CHG_CMD), |
| 1350 | OSMO_VALUE_STRING(GSM48_MT_RR_CFG_CHG_ACK), |
| 1351 | OSMO_VALUE_STRING(GSM48_MT_RR_CFG_CHG_REJ), |
| 1352 | |
| 1353 | OSMO_VALUE_STRING(GSM48_MT_RR_ASS_CMD), |
| 1354 | OSMO_VALUE_STRING(GSM48_MT_RR_ASS_COMPL), |
| 1355 | OSMO_VALUE_STRING(GSM48_MT_RR_ASS_FAIL), |
| 1356 | OSMO_VALUE_STRING(GSM48_MT_RR_HANDO_CMD), |
| 1357 | OSMO_VALUE_STRING(GSM48_MT_RR_HANDO_COMPL), |
| 1358 | OSMO_VALUE_STRING(GSM48_MT_RR_HANDO_FAIL), |
| 1359 | OSMO_VALUE_STRING(GSM48_MT_RR_HANDO_INFO), |
| 1360 | OSMO_VALUE_STRING(GSM48_MT_RR_HANDO_INFO), |
| 1361 | OSMO_VALUE_STRING(GSM48_MT_RR_DTM_ASS_CMD), |
| 1362 | |
| 1363 | OSMO_VALUE_STRING(GSM48_MT_RR_CELL_CHG_ORDER), |
| 1364 | OSMO_VALUE_STRING(GSM48_MT_RR_PDCH_ASS_CMD), |
| 1365 | |
| 1366 | OSMO_VALUE_STRING(GSM48_MT_RR_CHAN_REL), |
| 1367 | OSMO_VALUE_STRING(GSM48_MT_RR_PART_REL), |
| 1368 | OSMO_VALUE_STRING(GSM48_MT_RR_PART_REL_COMP), |
| 1369 | |
| 1370 | OSMO_VALUE_STRING(GSM48_MT_RR_PAG_REQ_1), |
| 1371 | OSMO_VALUE_STRING(GSM48_MT_RR_PAG_REQ_2), |
| 1372 | OSMO_VALUE_STRING(GSM48_MT_RR_PAG_REQ_3), |
| 1373 | OSMO_VALUE_STRING(GSM48_MT_RR_PAG_RESP), |
| 1374 | OSMO_VALUE_STRING(GSM48_MT_RR_NOTIF_NCH), |
| 1375 | OSMO_VALUE_STRING(GSM48_MT_RR_NOTIF_FACCH), |
| 1376 | OSMO_VALUE_STRING(GSM48_MT_RR_NOTIF_RESP), |
| 1377 | OSMO_VALUE_STRING(GSM48_MT_RR_PACKET_NOTIF), |
| 1378 | OSMO_VALUE_STRING(GSM48_MT_RR_UTRAN_CLSM_CHG), |
| 1379 | OSMO_VALUE_STRING(GSM48_MT_RR_CDMA2K_CLSM_CHG), |
| 1380 | OSMO_VALUE_STRING(GSM48_MT_RR_IS_TO_UTRAN_HANDO), |
| 1381 | OSMO_VALUE_STRING(GSM48_MT_RR_IS_TO_CDMA2K_HANDO), |
| 1382 | |
| 1383 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_8), |
| 1384 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_1), |
| 1385 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_2), |
| 1386 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_3), |
| 1387 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_4), |
| 1388 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_5), |
| 1389 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_6), |
| 1390 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_7), |
| 1391 | |
| 1392 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_2bis), |
| 1393 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_2ter), |
| 1394 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_2quater), |
| 1395 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_5bis), |
| 1396 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_5ter), |
| 1397 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_9), |
| 1398 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_13), |
| 1399 | |
| 1400 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_16), |
| 1401 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_17), |
| 1402 | |
| 1403 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_18), |
| 1404 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_19), |
| 1405 | OSMO_VALUE_STRING(GSM48_MT_RR_SYSINFO_20), |
| 1406 | |
| 1407 | OSMO_VALUE_STRING(GSM48_MT_RR_CHAN_MODE_MODIF), |
| 1408 | OSMO_VALUE_STRING(GSM48_MT_RR_STATUS), |
| 1409 | OSMO_VALUE_STRING(GSM48_MT_RR_CHAN_MODE_MODIF_ACK), |
| 1410 | OSMO_VALUE_STRING(GSM48_MT_RR_FREQ_REDEF), |
| 1411 | OSMO_VALUE_STRING(GSM48_MT_RR_MEAS_REP), |
| 1412 | OSMO_VALUE_STRING(GSM48_MT_RR_CLSM_CHG), |
| 1413 | OSMO_VALUE_STRING(GSM48_MT_RR_CLSM_ENQ), |
| 1414 | OSMO_VALUE_STRING(GSM48_MT_RR_EXT_MEAS_REP), |
| 1415 | OSMO_VALUE_STRING(GSM48_MT_RR_EXT_MEAS_REP_ORD), |
| 1416 | OSMO_VALUE_STRING(GSM48_MT_RR_GPRS_SUSP_REQ), |
| 1417 | OSMO_VALUE_STRING(GSM48_MT_RR_DTM_INFO), |
| 1418 | |
| 1419 | OSMO_VALUE_STRING(GSM48_MT_RR_VGCS_UPL_GRANT), |
| 1420 | OSMO_VALUE_STRING(GSM48_MT_RR_UPLINK_RELEASE), |
| 1421 | OSMO_VALUE_STRING(GSM48_MT_RR_UPLINK_FREE), |
| 1422 | OSMO_VALUE_STRING(GSM48_MT_RR_UPLINK_BUSY), |
| 1423 | OSMO_VALUE_STRING(GSM48_MT_RR_TALKER_IND), |
| 1424 | { 0, NULL } |
| 1425 | }; |
| 1426 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1427 | /*! TS 04.08 MM Message Type names */ |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1428 | const struct value_string gsm48_mm_msgtype_names[] = { |
| 1429 | OSMO_VALUE_STRING(GSM48_MT_MM_IMSI_DETACH_IND), |
| 1430 | OSMO_VALUE_STRING(GSM48_MT_MM_LOC_UPD_ACCEPT), |
| 1431 | OSMO_VALUE_STRING(GSM48_MT_MM_LOC_UPD_REJECT), |
| 1432 | OSMO_VALUE_STRING(GSM48_MT_MM_LOC_UPD_REQUEST), |
| 1433 | |
| 1434 | OSMO_VALUE_STRING(GSM48_MT_MM_AUTH_REJ), |
| 1435 | OSMO_VALUE_STRING(GSM48_MT_MM_AUTH_REQ), |
| 1436 | OSMO_VALUE_STRING(GSM48_MT_MM_AUTH_RESP), |
| 1437 | OSMO_VALUE_STRING(GSM48_MT_MM_AUTH_FAIL), |
| 1438 | OSMO_VALUE_STRING(GSM48_MT_MM_ID_REQ), |
| 1439 | OSMO_VALUE_STRING(GSM48_MT_MM_ID_RESP), |
| 1440 | OSMO_VALUE_STRING(GSM48_MT_MM_TMSI_REALL_CMD), |
| 1441 | OSMO_VALUE_STRING(GSM48_MT_MM_TMSI_REALL_COMPL), |
| 1442 | |
| 1443 | OSMO_VALUE_STRING(GSM48_MT_MM_CM_SERV_ACC), |
| 1444 | OSMO_VALUE_STRING(GSM48_MT_MM_CM_SERV_REJ), |
| 1445 | OSMO_VALUE_STRING(GSM48_MT_MM_CM_SERV_ABORT), |
| 1446 | OSMO_VALUE_STRING(GSM48_MT_MM_CM_SERV_REQ), |
| 1447 | OSMO_VALUE_STRING(GSM48_MT_MM_CM_SERV_PROMPT), |
| 1448 | OSMO_VALUE_STRING(GSM48_MT_MM_CM_REEST_REQ), |
| 1449 | OSMO_VALUE_STRING(GSM48_MT_MM_ABORT), |
| 1450 | |
| 1451 | OSMO_VALUE_STRING(GSM48_MT_MM_NULL), |
| 1452 | OSMO_VALUE_STRING(GSM48_MT_MM_STATUS), |
| 1453 | OSMO_VALUE_STRING(GSM48_MT_MM_INFO), |
| 1454 | { 0, NULL } |
| 1455 | }; |
| 1456 | |
Neels Hofmeyr | 87e4550 | 2017-06-20 00:17:59 +0200 | [diff] [blame] | 1457 | /*! TS 04.08 CC Message Type names */ |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1458 | const struct value_string gsm48_cc_msgtype_names[] = { |
| 1459 | OSMO_VALUE_STRING(GSM48_MT_CC_ALERTING), |
| 1460 | OSMO_VALUE_STRING(GSM48_MT_CC_CALL_CONF), |
| 1461 | OSMO_VALUE_STRING(GSM48_MT_CC_CALL_PROC), |
| 1462 | OSMO_VALUE_STRING(GSM48_MT_CC_CONNECT), |
| 1463 | OSMO_VALUE_STRING(GSM48_MT_CC_CONNECT_ACK), |
| 1464 | OSMO_VALUE_STRING(GSM48_MT_CC_EMERG_SETUP), |
| 1465 | OSMO_VALUE_STRING(GSM48_MT_CC_PROGRESS), |
| 1466 | OSMO_VALUE_STRING(GSM48_MT_CC_ESTAB), |
| 1467 | OSMO_VALUE_STRING(GSM48_MT_CC_ESTAB_CONF), |
| 1468 | OSMO_VALUE_STRING(GSM48_MT_CC_RECALL), |
| 1469 | OSMO_VALUE_STRING(GSM48_MT_CC_START_CC), |
| 1470 | OSMO_VALUE_STRING(GSM48_MT_CC_SETUP), |
| 1471 | |
| 1472 | OSMO_VALUE_STRING(GSM48_MT_CC_MODIFY), |
| 1473 | OSMO_VALUE_STRING(GSM48_MT_CC_MODIFY_COMPL), |
| 1474 | OSMO_VALUE_STRING(GSM48_MT_CC_MODIFY_REJECT), |
| 1475 | OSMO_VALUE_STRING(GSM48_MT_CC_USER_INFO), |
| 1476 | OSMO_VALUE_STRING(GSM48_MT_CC_HOLD), |
| 1477 | OSMO_VALUE_STRING(GSM48_MT_CC_HOLD_ACK), |
| 1478 | OSMO_VALUE_STRING(GSM48_MT_CC_HOLD_REJ), |
| 1479 | OSMO_VALUE_STRING(GSM48_MT_CC_RETR), |
| 1480 | OSMO_VALUE_STRING(GSM48_MT_CC_RETR_ACK), |
| 1481 | OSMO_VALUE_STRING(GSM48_MT_CC_RETR_REJ), |
| 1482 | |
| 1483 | OSMO_VALUE_STRING(GSM48_MT_CC_DISCONNECT), |
| 1484 | OSMO_VALUE_STRING(GSM48_MT_CC_RELEASE), |
| 1485 | OSMO_VALUE_STRING(GSM48_MT_CC_RELEASE_COMPL), |
| 1486 | |
| 1487 | OSMO_VALUE_STRING(GSM48_MT_CC_CONG_CTRL), |
| 1488 | OSMO_VALUE_STRING(GSM48_MT_CC_NOTIFY), |
| 1489 | OSMO_VALUE_STRING(GSM48_MT_CC_STATUS), |
| 1490 | OSMO_VALUE_STRING(GSM48_MT_CC_STATUS_ENQ), |
| 1491 | OSMO_VALUE_STRING(GSM48_MT_CC_START_DTMF), |
| 1492 | OSMO_VALUE_STRING(GSM48_MT_CC_STOP_DTMF), |
| 1493 | OSMO_VALUE_STRING(GSM48_MT_CC_STOP_DTMF_ACK), |
| 1494 | OSMO_VALUE_STRING(GSM48_MT_CC_START_DTMF_ACK), |
| 1495 | OSMO_VALUE_STRING(GSM48_MT_CC_START_DTMF_REJ), |
| 1496 | OSMO_VALUE_STRING(GSM48_MT_CC_FACILITY), |
| 1497 | { 0, NULL } |
| 1498 | }; |
| 1499 | |
Keith | 3cdaa8d | 2018-08-31 20:09:18 +0200 | [diff] [blame] | 1500 | /*! TS 04.08 10.5..4.11 Call Control Cause Values */ |
| 1501 | const struct value_string gsm48_cc_cause_names[] = { |
| 1502 | { GSM48_CC_CAUSE_UNASSIGNED_NR, "UNASSIGNED_NR" }, |
| 1503 | { GSM48_CC_CAUSE_NO_ROUTE, "NO_ROUTE" }, |
| 1504 | { GSM48_CC_CAUSE_CHAN_UNACCEPT, "CHAN_UNACCEPT" }, |
| 1505 | { GSM48_CC_CAUSE_OP_DET_BARRING, "OP_DET_BARRING" }, |
| 1506 | { GSM48_CC_CAUSE_NORM_CALL_CLEAR, "NORM_CALL_CLEAR" }, |
| 1507 | { GSM48_CC_CAUSE_USER_BUSY, "USER_BUSY" }, |
| 1508 | { GSM48_CC_CAUSE_USER_NOTRESPOND, "USER_NOTRESPOND" }, |
| 1509 | { GSM48_CC_CAUSE_USER_ALERTING_NA, "USER_ALERTING_NA" }, |
| 1510 | { GSM48_CC_CAUSE_CALL_REJECTED, "CALL_REJECTED" }, |
| 1511 | { GSM48_CC_CAUSE_NUMBER_CHANGED, "NUMBER_CHANGED" }, |
| 1512 | { GSM48_CC_CAUSE_PRE_EMPTION, "PRE_EMPTION" }, |
| 1513 | { GSM48_CC_CAUSE_NONSE_USER_CLR, "NONSE_USER_CLR" }, |
| 1514 | { GSM48_CC_CAUSE_DEST_OOO, "DEST_OOO" }, |
| 1515 | { GSM48_CC_CAUSE_INV_NR_FORMAT, "INV_NR_FORMAT" }, |
| 1516 | { GSM48_CC_CAUSE_FACILITY_REJ, "FACILITY_REJ" }, |
| 1517 | { GSM48_CC_CAUSE_RESP_STATUS_INQ, "RESP_STATUS_INQ" }, |
| 1518 | { GSM48_CC_CAUSE_NORMAL_UNSPEC, "NORMAL_UNSPEC" }, |
| 1519 | { GSM48_CC_CAUSE_NO_CIRCUIT_CHAN, "NO_CIRCUIT_CHAN" }, |
| 1520 | { GSM48_CC_CAUSE_NETWORK_OOO, "NETWORK_OOO" }, |
| 1521 | { GSM48_CC_CAUSE_TEMP_FAILURE, "TEMP_FAILURE" }, |
| 1522 | { GSM48_CC_CAUSE_SWITCH_CONG, "SWITCH_CONG" }, |
| 1523 | { GSM48_CC_CAUSE_ACC_INF_DISCARD, "ACC_INF_DISCARD" }, |
| 1524 | { GSM48_CC_CAUSE_REQ_CHAN_UNAVAIL, "REQ_CHAN_UNAVAIL" }, |
| 1525 | { GSM48_CC_CAUSE_RESOURCE_UNAVAIL, "RESOURCE_UNAVAIL" }, |
| 1526 | { GSM48_CC_CAUSE_QOS_UNAVAIL, "QOS_UNAVAIL" }, |
| 1527 | { GSM48_CC_CAUSE_REQ_FAC_NOT_SUBSC, "REQ_FAC_NOT_SUBSC" }, |
| 1528 | { GSM48_CC_CAUSE_INC_BARRED_CUG, "INC_BARRED_CUG" }, |
| 1529 | { GSM48_CC_CAUSE_BEARER_CAP_UNAUTH, "BEARER_CAP_UNAUTH" }, |
| 1530 | { GSM48_CC_CAUSE_BEARER_CA_UNAVAIL, "BEARER_CA_UNAVAIL" }, |
| 1531 | { GSM48_CC_CAUSE_SERV_OPT_UNAVAIL, "SERV_OPT_UNAVAIL" }, |
| 1532 | { GSM48_CC_CAUSE_BEARERSERV_UNIMPL, "BEARERSERV_UNIMPL" }, |
| 1533 | { GSM48_CC_CAUSE_ACM_GE_ACM_MAX, "ACM_GE_ACM_MAX" }, |
| 1534 | { GSM48_CC_CAUSE_REQ_FAC_NOTIMPL, "REQ_FAC_NOTIMPL" }, |
| 1535 | { GSM48_CC_CAUSE_RESTR_BCAP_AVAIL, "RESTR_BCAP_AVAIL" }, |
| 1536 | { GSM48_CC_CAUSE_SERV_OPT_UNIMPL, "SERV_OPT_UNIMPL" }, |
| 1537 | { GSM48_CC_CAUSE_INVAL_TRANS_ID, "INVAL_TRANS_ID" }, |
| 1538 | { GSM48_CC_CAUSE_USER_NOT_IN_CUG, "USER_NOT_IN_CUG" }, |
| 1539 | { GSM48_CC_CAUSE_INCOMPAT_DEST, "INCOMPAT_DEST" }, |
| 1540 | { GSM48_CC_CAUSE_INVAL_TRANS_NET, "INVAL_TRANS_NET" }, |
| 1541 | { GSM48_CC_CAUSE_SEMANTIC_INCORR, "SEMANTIC_INCORR" }, |
| 1542 | { GSM48_CC_CAUSE_INVAL_MAND_INF, "INVAL_MAND_INF" }, |
| 1543 | { GSM48_CC_CAUSE_MSGTYPE_NOTEXIST, "MSGTYPE_NOTEXIST" }, |
| 1544 | { GSM48_CC_CAUSE_MSGTYPE_INCOMPAT, "MSGTYPE_INCOMPAT" }, |
| 1545 | { GSM48_CC_CAUSE_IE_NOTEXIST, "IE_NOTEXIST" }, |
| 1546 | { GSM48_CC_CAUSE_COND_IE_ERR, "COND_IE_ERR" }, |
| 1547 | { GSM48_CC_CAUSE_MSG_INCOMP_STATE, "MSG_INCOMP_STATE" }, |
| 1548 | { GSM48_CC_CAUSE_RECOVERY_TIMER, "RECOVERY_TIMER" }, |
| 1549 | { GSM48_CC_CAUSE_PROTO_ERR, "PROTO_ERR" }, |
| 1550 | { GSM48_CC_CAUSE_INTERWORKING, "INTERWORKING" }, |
| 1551 | { 0 , NULL } |
| 1552 | }; |
| 1553 | |
Vadim Yanitskiy | 8d41d72 | 2018-04-17 11:17:28 +0700 | [diff] [blame] | 1554 | /*! TS 04.80, section 3.4 Messages for supplementary services control */ |
| 1555 | const struct value_string gsm48_nc_ss_msgtype_names[] = { |
| 1556 | OSMO_VALUE_STRING(GSM0480_MTYPE_RELEASE_COMPLETE), |
| 1557 | OSMO_VALUE_STRING(GSM0480_MTYPE_FACILITY), |
| 1558 | OSMO_VALUE_STRING(GSM0480_MTYPE_REGISTER), |
| 1559 | { 0, NULL } |
| 1560 | }; |
| 1561 | |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1562 | /*! Compose a string naming the message type for given protocol, in a caller-provided buffer. |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1563 | * If the message type string is known, return the message type name, otherwise |
| 1564 | * return "<protocol discriminator name>:<message type in hex>". |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1565 | * \param[out] buf caller-allcated output string buffer |
| 1566 | * \param[in] buf_len size of buf in bytes |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1567 | * \param[in] pdisc protocol discriminator like GSM48_PDISC_MM |
| 1568 | * \param[in] msg_type message type like GSM48_MT_MM_LOC_UPD_REQUEST |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1569 | * \returns buf |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1570 | */ |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1571 | char *gsm48_pdisc_msgtype_name_buf(char *buf, size_t buf_len, uint8_t pdisc, uint8_t msg_type) |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1572 | { |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1573 | const struct value_string *msgt_names; |
| 1574 | |
| 1575 | switch (pdisc) { |
| 1576 | case GSM48_PDISC_RR: |
| 1577 | msgt_names = gsm48_rr_msgtype_names; |
| 1578 | break; |
| 1579 | case GSM48_PDISC_MM: |
| 1580 | msgt_names = gsm48_mm_msgtype_names; |
| 1581 | break; |
| 1582 | case GSM48_PDISC_CC: |
| 1583 | msgt_names = gsm48_cc_msgtype_names; |
| 1584 | break; |
Vadim Yanitskiy | 8d41d72 | 2018-04-17 11:17:28 +0700 | [diff] [blame] | 1585 | case GSM48_PDISC_NC_SS: |
| 1586 | msgt_names = gsm48_nc_ss_msgtype_names; |
| 1587 | break; |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1588 | default: |
| 1589 | msgt_names = NULL; |
| 1590 | break; |
| 1591 | } |
| 1592 | |
| 1593 | if (msgt_names) |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1594 | snprintf(buf, buf_len, "%s", get_value_string(msgt_names, msg_type)); |
| 1595 | else |
| 1596 | snprintf(buf, buf_len, "%s:0x%02x", gsm48_pdisc_name(pdisc), msg_type); |
| 1597 | return buf; |
| 1598 | } |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1599 | |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1600 | /*! Compose a string naming the message type for given protocol, in a static buffer. |
| 1601 | * If the message type string is known, return the message type name, otherwise |
| 1602 | * return "<protocol discriminator name>:<message type in hex>". |
| 1603 | * \param[in] pdisc protocol discriminator like GSM48_PDISC_MM |
| 1604 | * \param[in] msg_type message type like GSM48_MT_MM_LOC_UPD_REQUEST |
| 1605 | * \returns statically allocated string or string constant. |
| 1606 | */ |
| 1607 | const char *gsm48_pdisc_msgtype_name(uint8_t pdisc, uint8_t msg_type) |
| 1608 | { |
Harald Welte | 171ef82 | 2019-03-28 10:49:05 +0100 | [diff] [blame] | 1609 | static __thread char namebuf[64]; |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1610 | return gsm48_pdisc_msgtype_name_buf(namebuf, sizeof(namebuf), pdisc, msg_type); |
Neels Hofmeyr | 00ab9ed | 2017-03-09 23:27:56 +0100 | [diff] [blame] | 1611 | } |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1612 | |
Harald Welte | 179f357 | 2019-03-18 18:38:47 +0100 | [diff] [blame] | 1613 | /*! Compose a string naming the message type for given protocol, in a dynamically-allocated buffer. |
| 1614 | * If the message type string is known, return the message type name, otherwise |
| 1615 | * return "<protocol discriminator name>:<message type in hex>". |
| 1616 | * \param[in] ctx talloc context from which to allocate output buffer |
| 1617 | * \param[in] pdisc protocol discriminator like GSM48_PDISC_MM |
| 1618 | * \param[in] msg_type message type like GSM48_MT_MM_LOC_UPD_REQUEST |
| 1619 | * \returns string representation in dynamically allocated output buffer. |
| 1620 | */ |
| 1621 | char *gsm48_pdisc_msgtype_name_c(const void *ctx, uint8_t pdisc, uint8_t msg_type) |
| 1622 | { |
| 1623 | char *namebuf = talloc_size(ctx, 64); |
| 1624 | if (!namebuf) |
| 1625 | return NULL; |
| 1626 | return gsm48_pdisc_msgtype_name_buf(namebuf, 64, pdisc, msg_type); |
| 1627 | } |
| 1628 | |
Neels Hofmeyr | aead241 | 2018-04-06 04:31:00 +0200 | [diff] [blame] | 1629 | const struct value_string gsm48_reject_value_names[] = { |
| 1630 | { GSM48_REJECT_IMSI_UNKNOWN_IN_HLR, "IMSI_UNKNOWN_IN_HLR" }, |
| 1631 | { GSM48_REJECT_ILLEGAL_MS, "ILLEGAL_MS" }, |
| 1632 | { GSM48_REJECT_IMSI_UNKNOWN_IN_VLR, "IMSI_UNKNOWN_IN_VLR" }, |
| 1633 | { GSM48_REJECT_IMEI_NOT_ACCEPTED, "IMEI_NOT_ACCEPTED" }, |
| 1634 | { GSM48_REJECT_ILLEGAL_ME, "ILLEGAL_ME" }, |
| 1635 | { GSM48_REJECT_PLMN_NOT_ALLOWED, "PLMN_NOT_ALLOWED" }, |
| 1636 | { GSM48_REJECT_LOC_NOT_ALLOWED, "LOC_NOT_ALLOWED" }, |
| 1637 | { GSM48_REJECT_ROAMING_NOT_ALLOWED, "ROAMING_NOT_ALLOWED" }, |
| 1638 | { GSM48_REJECT_NETWORK_FAILURE, "NETWORK_FAILURE" }, |
| 1639 | { GSM48_REJECT_SYNCH_FAILURE, "SYNCH_FAILURE" }, |
| 1640 | { GSM48_REJECT_CONGESTION, "CONGESTION" }, |
| 1641 | { GSM48_REJECT_SRV_OPT_NOT_SUPPORTED, "SRV_OPT_NOT_SUPPORTED" }, |
| 1642 | { GSM48_REJECT_RQD_SRV_OPT_NOT_SUPPORTED, "RQD_SRV_OPT_NOT_SUPPORTED" }, |
| 1643 | { GSM48_REJECT_SRV_OPT_TMP_OUT_OF_ORDER, "SRV_OPT_TMP_OUT_OF_ORDER" }, |
| 1644 | { GSM48_REJECT_CALL_CAN_NOT_BE_IDENTIFIED, "CALL_CAN_NOT_BE_IDENTIFIED" }, |
| 1645 | { GSM48_REJECT_INCORRECT_MESSAGE, "INCORRECT_MESSAGE" }, |
| 1646 | { GSM48_REJECT_INVALID_MANDANTORY_INF, "INVALID_MANDANTORY_INF" }, |
| 1647 | { GSM48_REJECT_MSG_TYPE_NOT_IMPLEMENTED, "MSG_TYPE_NOT_IMPLEMENTED" }, |
| 1648 | { GSM48_REJECT_MSG_TYPE_NOT_COMPATIBLE, "MSG_TYPE_NOT_COMPATIBLE" }, |
| 1649 | { GSM48_REJECT_INF_ELEME_NOT_IMPLEMENTED, "INF_ELEME_NOT_IMPLEMENTED" }, |
| 1650 | { GSM48_REJECT_CONDTIONAL_IE_ERROR, "CONDTIONAL_IE_ERROR" }, |
| 1651 | { GSM48_REJECT_MSG_NOT_COMPATIBLE, "MSG_NOT_COMPATIBLE" }, |
| 1652 | { GSM48_REJECT_PROTOCOL_ERROR, "PROTOCOL_ERROR" }, |
| 1653 | { GSM48_REJECT_GPRS_NOT_ALLOWED, "GPRS_NOT_ALLOWED" }, |
| 1654 | { GSM48_REJECT_SERVICES_NOT_ALLOWED, "SERVICES_NOT_ALLOWED" }, |
| 1655 | { GSM48_REJECT_MS_IDENTITY_NOT_DERVIVABLE, "MS_IDENTITY_NOT_DERVIVABLE" }, |
| 1656 | { GSM48_REJECT_IMPLICITLY_DETACHED, "IMPLICITLY_DETACHED" }, |
| 1657 | { GSM48_REJECT_GPRS_NOT_ALLOWED_IN_PLMN, "GPRS_NOT_ALLOWED_IN_PLMN" }, |
| 1658 | { GSM48_REJECT_MSC_TMP_NOT_REACHABLE, "MSC_TMP_NOT_REACHABLE" }, |
| 1659 | { 0, NULL } |
| 1660 | }; |
| 1661 | |
Vadim Yanitskiy | 30cfeeb | 2018-08-03 05:44:00 +0700 | [diff] [blame] | 1662 | /*! Wrap a given \ref msg with \ref gsm48_hdr structure |
| 1663 | * \param[out] msg A message to be wrapped |
| 1664 | * \param[in] pdisc GSM TS 04.07 protocol discriminator 1/2, |
| 1665 | * sub-pdisc, trans_id or skip_ind 1/2, |
| 1666 | * see section 11.2.3.1 for details |
| 1667 | * \param[in] msg_type GSM TS 04.08 message type |
| 1668 | * @return pointer to pushed header within \ref msg |
| 1669 | */ |
| 1670 | struct gsm48_hdr *gsm48_push_l3hdr(struct msgb *msg, |
| 1671 | uint8_t pdisc, uint8_t msg_type) |
| 1672 | { |
| 1673 | struct gsm48_hdr *gh; |
| 1674 | |
| 1675 | gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); |
| 1676 | gh->proto_discr = pdisc; |
| 1677 | gh->msg_type = msg_type; |
| 1678 | |
| 1679 | return gh; |
| 1680 | } |
| 1681 | |
Neels Hofmeyr | 92f3f5e | 2019-01-05 00:39:13 +0100 | [diff] [blame] | 1682 | const struct value_string osmo_lu_type_names[] = { |
| 1683 | { GSM48_LUPD_NORMAL, "NORMAL" }, |
| 1684 | { GSM48_LUPD_PERIODIC, "PERIODIC" }, |
| 1685 | { GSM48_LUPD_IMSI_ATT, "IMSI-ATTACH" }, |
| 1686 | { GSM48_LUPD_RESERVED, "RESERVED" }, |
| 1687 | {} |
| 1688 | }; |
| 1689 | |
Neels Hofmeyr | f8963f9 | 2019-01-10 23:33:32 +0100 | [diff] [blame] | 1690 | const struct value_string osmo_cm_service_type_names[] = { |
| 1691 | { GSM48_CMSERV_MO_CALL_PACKET, "MO-Call" }, |
| 1692 | { GSM48_CMSERV_EMERGENCY, "Emergency-Call" }, |
| 1693 | { GSM48_CMSERV_SMS, "Short-Messaging-Service" }, |
| 1694 | { GSM48_CMSERV_SUP_SERV, "Supplementary-Service" }, |
| 1695 | { GSM48_CMSERV_VGCS, "Voice-Group-Call" }, |
| 1696 | { GSM48_CMSERV_VBS, "Voice-Broadcast-Call" }, |
| 1697 | { GSM48_CMSERV_LOC_SERV, "Location-Service" }, |
| 1698 | {} |
| 1699 | }; |
| 1700 | |
Neels Hofmeyr | 7740d26 | 2019-01-16 16:53:26 +0100 | [diff] [blame] | 1701 | bool osmo_gsm48_classmark1_is_r99(const struct gsm48_classmark1 *cm1) |
| 1702 | { |
| 1703 | return cm1->rev_lev >= 2; |
| 1704 | } |
| 1705 | |
| 1706 | bool osmo_gsm48_classmark2_is_r99(const struct gsm48_classmark2 *cm2, uint8_t cm2_len) |
| 1707 | { |
| 1708 | if (!cm2_len) |
| 1709 | return false; |
| 1710 | return cm2->rev_lev >= 2; |
| 1711 | } |
| 1712 | |
| 1713 | /*! Return true if any of Classmark 1 or Classmark 2 are present and indicate R99 capability. |
| 1714 | * \param[in] cm Classmarks. |
| 1715 | * \returns True if R99 or later, false if pre-R99 or no Classmarks are present. |
| 1716 | */ |
| 1717 | bool osmo_gsm48_classmark_is_r99(const struct osmo_gsm48_classmark *cm) |
| 1718 | { |
| 1719 | if (cm->classmark1_set) |
| 1720 | return osmo_gsm48_classmark1_is_r99(&cm->classmark1); |
| 1721 | return osmo_gsm48_classmark2_is_r99(&cm->classmark2, cm->classmark2_len); |
| 1722 | } |
| 1723 | |
| 1724 | /*! Return a string representation of A5 cipher algorithms indicated by Classmark 1, 2 and 3. |
| 1725 | * \param[in] cm Classmarks. |
| 1726 | * \returns A statically allocated string like "cm1{a5/1=supported} cm2{0x23= A5/2 A5/3} no-cm3" |
| 1727 | */ |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1728 | char *osmo_gsm48_classmark_a5_name_buf(char *buf, size_t buf_len, const struct osmo_gsm48_classmark *cm) |
Neels Hofmeyr | 7740d26 | 2019-01-16 16:53:26 +0100 | [diff] [blame] | 1729 | { |
Neels Hofmeyr | 7740d26 | 2019-01-16 16:53:26 +0100 | [diff] [blame] | 1730 | char cm1[42] = "no-cm1"; |
| 1731 | char cm2[42] = " no-cm2"; |
Neels Hofmeyr | 9e6f5f1 | 2019-03-11 05:07:56 +0100 | [diff] [blame] | 1732 | char cm3[42] = " no-cm3"; |
Neels Hofmeyr | 7740d26 | 2019-01-16 16:53:26 +0100 | [diff] [blame] | 1733 | |
| 1734 | if (cm->classmark1_set) |
| 1735 | snprintf(cm1, sizeof(cm1), "cm1{a5/1=%s}", |
| 1736 | cm->classmark1.a5_1 ? "not-supported":"supported" /* inverted logic */); |
| 1737 | |
| 1738 | if (cm->classmark2_len >= 3) |
| 1739 | snprintf(cm2, sizeof(cm2), " cm2{0x%x=%s%s}", |
| 1740 | cm->classmark2.a5_2 + (cm->classmark2.a5_3 << 1), |
| 1741 | cm->classmark2.a5_2 ? " A5/2" : "", |
| 1742 | cm->classmark2.a5_3 ? " A5/3" : ""); |
| 1743 | |
| 1744 | if (cm->classmark3_len >= 1) |
| 1745 | snprintf(cm3, sizeof(cm3), " cm3{0x%x=%s%s%s%s}", |
| 1746 | cm->classmark3[0], |
| 1747 | cm->classmark3[0] & (1 << 0) ? " A5/4" : "", |
| 1748 | cm->classmark3[0] & (1 << 1) ? " A5/5" : "", |
| 1749 | cm->classmark3[0] & (1 << 2) ? " A5/6" : "", |
| 1750 | cm->classmark3[0] & (1 << 3) ? " A5/7" : ""); |
| 1751 | |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1752 | snprintf(buf, buf_len, "%s%s%s", cm1, cm2, cm3); |
Neels Hofmeyr | 7740d26 | 2019-01-16 16:53:26 +0100 | [diff] [blame] | 1753 | return buf; |
| 1754 | } |
| 1755 | |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1756 | /*! Return a string representation of A5 cipher algorithms indicated by Classmark 1, 2 and 3. |
| 1757 | * \param[in] cm Classmarks. |
| 1758 | * \returns A statically allocated string like "cm1{a5/1=supported} cm2{0x23= A5/2 A5/3} no-cm3" |
| 1759 | */ |
| 1760 | const char *osmo_gsm48_classmark_a5_name(const struct osmo_gsm48_classmark *cm) |
| 1761 | { |
Harald Welte | 171ef82 | 2019-03-28 10:49:05 +0100 | [diff] [blame] | 1762 | static __thread char buf[128]; |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1763 | return osmo_gsm48_classmark_a5_name_buf(buf, sizeof(buf), cm); |
| 1764 | } |
| 1765 | |
Harald Welte | 179f357 | 2019-03-18 18:38:47 +0100 | [diff] [blame] | 1766 | /*! Return a string representation of A5 cipher algorithms indicated by Classmark 1, 2 and 3. |
| 1767 | * \param[in] ctx talloc context from which to allocate output buffer |
| 1768 | * \param[in] cm Classmarks. |
| 1769 | * \returns string like "cm1{a5/1=supported} cm2{0x23= A5/2 A5/3} no-cm3" in dynamically-allocated |
| 1770 | * output buffer. |
| 1771 | */ |
| 1772 | char *osmo_gsm48_classmark_a5_name_c(const void *ctx, const struct osmo_gsm48_classmark *cm) |
| 1773 | { |
| 1774 | char *buf = talloc_size(ctx, 128); |
| 1775 | if (!buf) |
| 1776 | return NULL; |
| 1777 | return osmo_gsm48_classmark_a5_name_buf(buf, 128, cm); |
| 1778 | } |
Harald Welte | 4a62eda | 2019-03-18 18:27:00 +0100 | [diff] [blame] | 1779 | |
Neels Hofmeyr | 7740d26 | 2019-01-16 16:53:26 +0100 | [diff] [blame] | 1780 | /*! Overwrite dst with the Classmark information present in src. |
| 1781 | * Add an new Classmark and overwrite in dst what src has to offer, but where src has no Classmark information, leave |
| 1782 | * dst unchanged. (For Classmark 2 and 3, dst will exactly match any non-zero Classmark length from src, hence may end |
| 1783 | * up with a shorter Classmark after this call.) |
| 1784 | * \param[out] dst The target Classmark storage to be updated. |
| 1785 | * \param[in] src The new Classmark information to read from. |
| 1786 | */ |
| 1787 | void osmo_gsm48_classmark_update(struct osmo_gsm48_classmark *dst, const struct osmo_gsm48_classmark *src) |
| 1788 | { |
| 1789 | if (src->classmark1_set) { |
| 1790 | dst->classmark1 = src->classmark1; |
| 1791 | dst->classmark1_set = true; |
| 1792 | } |
| 1793 | if (src->classmark2_len) { |
| 1794 | dst->classmark2_len = src->classmark2_len; |
| 1795 | dst->classmark2 = src->classmark2; |
| 1796 | } |
| 1797 | if (src->classmark3_len) { |
| 1798 | dst->classmark3_len = src->classmark3_len; |
| 1799 | memcpy(dst->classmark3, src->classmark3, OSMO_MIN(sizeof(dst->classmark3), src->classmark3_len)); |
| 1800 | } |
| 1801 | } |
| 1802 | |
| 1803 | |
| 1804 | /*! Determine if the given Classmark (1/2/3) value permits a given A5/n cipher. |
| 1805 | * \param[in] cm Classmarks. |
| 1806 | * \param[in] a5 The N in A5/N for which to query whether support is indicated. |
| 1807 | * \return 1 when the given A5/n is permitted, 0 when not (or a5 > 7), and negative if the respective MS Classmark is |
| 1808 | * not known, where the negative number indicates the classmark type: -2 means Classmark 2 is not available. The |
| 1809 | * idea is that when e.g. A5/3 is requested and the corresponding Classmark 3 is not available, that the caller |
| 1810 | * can react by obtaining Classmark 3 and calling again once it is available. |
| 1811 | */ |
| 1812 | int osmo_gsm48_classmark_supports_a5(const struct osmo_gsm48_classmark *cm, uint8_t a5) |
| 1813 | { |
| 1814 | switch (a5) { |
| 1815 | case 0: |
| 1816 | /* all phones must implement A5/0, see 3GPP TS 43.020 4.9 */ |
| 1817 | return 1; |
| 1818 | case 1: |
| 1819 | /* 3GPP TS 43.020 4.9 requires A5/1 to be suppored by all phones and actually states: |
| 1820 | * "The network shall not provide service to an MS which indicates that it does not |
| 1821 | * support the ciphering algorithm A5/1.". However, let's be more tolerant based |
| 1822 | * on policy here */ |
| 1823 | /* See 3GPP TS 24.008 10.5.1.7 */ |
| 1824 | if (!cm->classmark1_set) |
| 1825 | return -1; |
| 1826 | /* Inverted logic for this bit! */ |
| 1827 | return cm->classmark1.a5_1 ? 0 : 1; |
| 1828 | case 2: |
| 1829 | /* See 3GPP TS 24.008 10.5.1.6 */ |
| 1830 | if (cm->classmark2_len < 3) |
| 1831 | return -2; |
| 1832 | return cm->classmark2.a5_2 ? 1 : 0; |
| 1833 | case 3: |
| 1834 | if (cm->classmark2_len < 3) |
| 1835 | return -2; |
| 1836 | return cm->classmark2.a5_3 ? 1 : 0; |
| 1837 | case 4: |
| 1838 | case 5: |
| 1839 | case 6: |
| 1840 | case 7: |
| 1841 | /* See 3GPP TS 24.008 10.5.1.7 */ |
| 1842 | if (!cm->classmark3_len) |
| 1843 | return -3; |
| 1844 | return (cm->classmark3[0] & (1 << (a5-4))) ? 1 : 0; |
| 1845 | default: |
| 1846 | return 0; |
| 1847 | } |
| 1848 | } |
| 1849 | |
Pau Espin Pedrol | b99f4ca | 2019-10-31 13:35:22 +0100 | [diff] [blame] | 1850 | /*! Decode power class from Classmark1/2 RF power capability field. |
| 1851 | * \param[in] rf_power_cap The RF power capability field (3 bits). |
| 1852 | * \param[in] band the band of the arfcn from where the classmark was received |
| 1853 | * \return the MS power class on success, negative on error. |
| 1854 | */ |
| 1855 | int8_t osmo_gsm48_rfpowercap2powerclass(enum gsm_band band, uint8_t rf_power_cap) |
| 1856 | { |
| 1857 | switch (band) { |
| 1858 | case GSM_BAND_1800: |
| 1859 | case GSM_BAND_1900: |
| 1860 | if (rf_power_cap > 2) |
| 1861 | return -1; |
| 1862 | return rf_power_cap + 1; |
| 1863 | default: |
| 1864 | if (rf_power_cap > 4) |
| 1865 | return -1; |
| 1866 | return rf_power_cap + 1; |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | |
Harald Welte | 96e2a00 | 2017-06-12 21:44:18 +0200 | [diff] [blame] | 1871 | /*! @} */ |