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/* (C) 2009-2016 by Harald Welte <laforge@gnumonks.org>
* (C) 2010 by On-Waves
* (C) 2014-2015 by Sysmocom s.f.m.c. GmbH
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
#include <osmocom/crypt/gprs_cipher.h>
#include <osmocom/core/utils.h>
#include <stdbool.h>
/* Protocol related stuff, should go into libosmocore */
/* 10.5.5.14 GPRS MM Cause / Table 10.5.147 */
const struct value_string gsm48_gmm_cause_names_[] = {
{ GMM_CAUSE_IMSI_UNKNOWN, "IMSI unknown in HLR" },
{ GMM_CAUSE_ILLEGAL_MS, "Illegal MS" },
{ GMM_CAUSE_IMEI_NOT_ACCEPTED, "IMEI not accepted" },
{ GMM_CAUSE_ILLEGAL_ME, "Illegal ME" },
{ GMM_CAUSE_GPRS_NOTALLOWED, "GPRS services not allowed" },
{ GMM_CAUSE_GPRS_OTHER_NOTALLOWED,
"GPRS services and non-GPRS services not allowed" },
{ GMM_CAUSE_MS_ID_NOT_DERIVED,
"MS identity cannot be derived by the network" },
{ GMM_CAUSE_IMPL_DETACHED, "Implicitly detached" },
{ GMM_CAUSE_PLMN_NOTALLOWED, "PLMN not allowed" },
{ GMM_CAUSE_LA_NOTALLOWED, "Location Area not allowed" },
{ GMM_CAUSE_ROAMING_NOTALLOWED,
"Roaming not allowed in this location area" },
{ GMM_CAUSE_NO_GPRS_PLMN,
"GPRS services not allowed in this PLMN" },
{ GMM_CAUSE_NO_SUIT_CELL_IN_LA, "No suitable cell in LA" },
{ GMM_CAUSE_MSC_TEMP_NOTREACH, "MSC temporarily not reachable" },
{ GMM_CAUSE_NET_FAIL, "Network failure" },
{ GMM_CAUSE_MAC_FAIL, "MAC failure" },
{ GMM_CAUSE_SYNC_FAIL, "SYNC failure" },
{ GMM_CAUSE_CONGESTION, "Congestion" },
{ GMM_CAUSE_GSM_AUTH_UNACCEPT, "GSM authentication unacceptable" },
{ GMM_CAUSE_NOT_AUTH_FOR_CSG, "Not authorized for this CSG" },
{ GMM_CAUSE_SMS_VIA_GPRS_IN_RA, "SMS provided via GPRS in this RA" },
{ GMM_CAUSE_NO_PDP_ACTIVATED, "No PDP context activated" },
{ GMM_CAUSE_SEM_INCORR_MSG, "Semantically incorrect message" },
{ GMM_CAUSE_INV_MAND_INFO, "Invalid mandatory information" },
{ GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL,
"Message type non-existant or not implemented" },
{ GMM_CAUSE_MSGT_INCOMP_P_STATE,
"Message type not compatible with protocol state" },
{ GMM_CAUSE_IE_NOTEXIST_NOTIMPL,
"Information element non-existent or not implemented" },
{ GMM_CAUSE_COND_IE_ERR, "Conditional IE error" },
{ GMM_CAUSE_MSG_INCOMP_P_STATE,
"Message not compatible with protocol state " },
{ GMM_CAUSE_PROTO_ERR_UNSPEC, "Protocol error, unspecified" },
{ 0, NULL }
};
const struct value_string *gsm48_gmm_cause_names = gsm48_gmm_cause_names_;
/* 10.5.6.6 SM Cause / Table 10.5.157 */
const struct value_string gsm48_gsm_cause_names_[] = {
{ GSM_CAUSE_INSUFF_RSRC, "Insufficient resources" },
{ GSM_CAUSE_MISSING_APN, "Missing or unknown APN" },
{ GSM_CAUSE_UNKNOWN_PDP, "Unknown PDP address or PDP type" },
{ GSM_CAUSE_AUTH_FAILED, "User Authentication failed" },
{ GSM_CAUSE_ACT_REJ_GGSN, "Activation rejected by GGSN" },
{ GSM_CAUSE_ACT_REJ_UNSPEC, "Activation rejected, unspecified" },
{ GSM_CAUSE_SERV_OPT_NOTSUPP, "Service option not supported" },
{ GSM_CAUSE_REQ_SERV_OPT_NOTSUB,
"Requested service option not subscribed" },
{ GSM_CAUSE_SERV_OPT_TEMP_OOO,
"Service option temporarily out of order" },
{ GSM_CAUSE_NSAPI_IN_USE, "NSAPI already used" },
{ GSM_CAUSE_DEACT_REGULAR, "Regular deactivation" },
{ GSM_CAUSE_QOS_NOT_ACCEPTED, "QoS not accepted" },
{ GSM_CAUSE_NET_FAIL, "Network Failure" },
{ GSM_CAUSE_REACT_RQD, "Reactivation required" },
{ GSM_CAUSE_FEATURE_NOTSUPP, "Feature not supported " },
{ GSM_CAUSE_INVALID_TRANS_ID, "Invalid transaction identifier" },
{ GSM_CAUSE_SEM_INCORR_MSG, "Semantically incorrect message" },
{ GSM_CAUSE_INV_MAND_INFO, "Invalid mandatory information" },
{ GSM_CAUSE_MSGT_NOTEXIST_NOTIMPL,
"Message type non-existant or not implemented" },
{ GSM_CAUSE_MSGT_INCOMP_P_STATE,
"Message type not compatible with protocol state" },
{ GSM_CAUSE_IE_NOTEXIST_NOTIMPL,
"Information element non-existent or not implemented" },
{ GSM_CAUSE_COND_IE_ERR, "Conditional IE error" },
{ GSM_CAUSE_MSG_INCOMP_P_STATE,
"Message not compatible with protocol state " },
{ GSM_CAUSE_PROTO_ERR_UNSPEC, "Protocol error, unspecified" },
{ 0, NULL }
};
const struct value_string *gsm48_gsm_cause_names = gsm48_gsm_cause_names_;
/*! \brief Check if MS supports particular version of GEA by inspecting
* MS network capability IE specified in 3GPP TS 24.008
* \param[in] ms_net_cap Buffer with raw MS network capability IE value,
* 3 - 10 bytes
* \param[in] cap_len Length of ms_net_cap, in bytes
* \param[in] gea Version of GEA to check
* \returns true if given version is supported by MS, false otherwise
*/
bool gprs_ms_net_cap_gea_supported(const uint8_t *ms_net_cap, uint8_t cap_len,
enum gprs_ciph_algo gea)
{
switch (gea) {
case GPRS_ALGO_GEA0:
return true;
case GPRS_ALGO_GEA1: /* 1st bit is GEA1: */
return 0x80 & ms_net_cap[0];
case GPRS_ALGO_GEA2: /* extended GEA bits start from 2nd bit */
return 0x40 & ms_net_cap[1]; /* of the next byte */
case GPRS_ALGO_GEA3:
return 0x20 & ms_net_cap[1];
case GPRS_ALGO_GEA4:
return 0x10 & ms_net_cap[1];
default:
return false;
}
}
const struct value_string gprs_msgt_gmm_names[] = {
{ GSM48_MT_GMM_ATTACH_REQ, "ATTACH REQUEST" },
{ GSM48_MT_GMM_ATTACH_ACK, "ATTACH ACK" },
{ GSM48_MT_GMM_ATTACH_COMPL, "ATTACH COMPLETE" },
{ GSM48_MT_GMM_ATTACH_REJ, "ATTACH REJECT" },
{ GSM48_MT_GMM_DETACH_REQ, "DETACH REQUEST" },
{ GSM48_MT_GMM_DETACH_ACK, "DETACH ACK" },
{ GSM48_MT_GMM_RA_UPD_REQ, "RA UPDATE REQUEST" },
{ GSM48_MT_GMM_RA_UPD_ACK, "RA UPDATE ACK" },
{ GSM48_MT_GMM_RA_UPD_COMPL, "RA UPDATE COMPLETE" },
{ GSM48_MT_GMM_RA_UPD_REJ, "RA UPDATE REJECT" },
{ GSM48_MT_GMM_PTMSI_REALL_CMD, "PTMSI REALLOC CMD" },
{ GSM48_MT_GMM_PTMSI_REALL_COMPL, "PTMSI REALLOC COMPLETE" },
{ GSM48_MT_GMM_AUTH_CIPH_REQ, "AUTH & CIPHER REQUEST" },
{ GSM48_MT_GMM_AUTH_CIPH_RESP, "AUTH & CIPHER RESPONSE" },
{ GSM48_MT_GMM_AUTH_CIPH_REJ, "AUTH & CIPHER REJECT" },
{ GSM48_MT_GMM_AUTH_CIPH_FAIL, "AUTH & CIPHER FAILURE" },
{ GSM48_MT_GMM_ID_REQ, "IDENTITY REQUEST" },
{ GSM48_MT_GMM_ID_RESP, "IDENTITY RESPONSE" },
{ GSM48_MT_GMM_STATUS, "STATUS" },
{ GSM48_MT_GMM_INFO, "INFO" },
{ 0, NULL }
};
/* 10.5.5.2 */
const struct value_string gprs_att_t_strs_[] = {
{ GPRS_ATT_T_ATTACH, "GPRS attach" },
{ GPRS_ATT_T_ATT_WHILE_IMSI, "GPRS attach while IMSI attached" },
{ GPRS_ATT_T_COMBINED, "Combined GPRS/IMSI attach" },
{ 0, NULL }
};
const struct value_string *gprs_att_t_strs = gprs_att_t_strs_;
const struct value_string gprs_upd_t_strs_[] = {
{ GPRS_UPD_T_RA, "RA updating" },
{ GPRS_UPD_T_RA_LA, "combined RA/LA updating" },
{ GPRS_UPD_T_RA_LA_IMSI_ATT, "combined RA/LA updating + IMSI attach" },
{ GPRS_UPD_T_PERIODIC, "periodic updating" },
{ 0, NULL }
};
const struct value_string *gprs_upd_t_strs = gprs_upd_t_strs_;
/* 10.5.5.5 */
const struct value_string gprs_det_t_mo_strs_[] = {
{ GPRS_DET_T_MO_GPRS, "GPRS detach" },
{ GPRS_DET_T_MO_IMSI, "IMSI detach" },
{ GPRS_DET_T_MO_COMBINED, "Combined GPRS/IMSI detach" },
{ 0, NULL }
};
const struct value_string *gprs_det_t_mo_strs = gprs_det_t_mo_strs_;
const struct value_string gprs_det_t_mt_strs_[] = {
{ GPRS_DET_T_MT_REATT_REQ, "re-attach required" },
{ GPRS_DET_T_MT_REATT_NOTREQ, "re-attach not required" },
{ GPRS_DET_T_MT_IMSI, "IMSI detach (after VLR failure)" },
{ 0, NULL }
};
const struct value_string *gprs_det_t_mt_strs = gprs_det_t_mt_strs_;
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