diff options
Diffstat (limited to 'include/osmocom')
| -rw-r--r-- | include/osmocom/core/logging.h | 3 | ||||
| -rw-r--r-- | include/osmocom/gsm/gsup.h | 139 |
2 files changed, 141 insertions, 1 deletions
diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h index 4b79c054..89d3f948 100644 --- a/include/osmocom/core/logging.h +++ b/include/osmocom/core/logging.h @@ -91,7 +91,8 @@ void logp(int subsys, const char *file, int line, int cont, const char *format, #define DLCTRL -8 /*!< Control Interface */ #define DLGTP -9 /*!< GTP (GPRS Tunneling Protocol */ #define DLSTATS -10 /*!< Statistics */ -#define OSMO_NUM_DLIB 10 /*!< Number of logging sub-systems in libraries */ +#define DLGSUP 11 /*!< Generic Subscriber Update Protocol */ +#define OSMO_NUM_DLIB 11 /*!< Number of logging sub-systems in libraries */ /*! Configuration of singgle log category / sub-system */ struct log_category { diff --git a/include/osmocom/gsm/gsup.h b/include/osmocom/gsm/gsup.h new file mode 100644 index 00000000..d966b2d2 --- /dev/null +++ b/include/osmocom/gsm/gsup.h @@ -0,0 +1,139 @@ +/* Osmocom Subscriber Update Protocol message encoder/decoder */ + +/* (C) 2014 by Sysmocom s.f.m.c. GmbH, Author: Jacob Erlbeck + * (C) 2016 by Harald Welte <laforge@gnumonks.org> + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ +#pragma once + +#include <stdint.h> +#include <osmocom/core/msgb.h> +#include <osmocom/gsm/protocol/gsm_23_003.h> +#include <osmocom/gsm/protocol/gsm_04_08_gprs.h> +#include <osmocom/crypt/auth.h> + +/*! Maximum nubmer of PDP inside \ref osmo_gsup_message */ +#define OSMO_GSUP_MAX_NUM_PDP_INFO 10 /* GSM 09.02 limits this to 50 */ +/*! Maximum number of auth info inside \ref osmo_gsup_message */ +#define OSMO_GSUP_MAX_NUM_AUTH_INFO 5 +/*! Maximum number of octets encoding MSISDN in BCD format */ +#define OSMO_GSUP_MAX_MSISDN_LEN 9 + +#define OSMO_GSUP_PDP_TYPE_SIZE 2 + +/*! Information Element Identifiers for GSUP IEs */ +enum osmo_gsup_iei { + OSMO_GSUP_IMSI_IE = 0x01, + OSMO_GSUP_CAUSE_IE = 0x02, + OSMO_GSUP_AUTH_TUPLE_IE = 0x03, + OSMO_GSUP_PDP_INFO_COMPL_IE = 0x04, + OSMO_GSUP_PDP_INFO_IE = 0x05, + OSMO_GSUP_CANCEL_TYPE_IE = 0x06, + OSMO_GSUP_FREEZE_PTMSI_IE = 0x07, + OSMO_GSUP_MSISDN_IE = 0x08, + OSMO_GSUP_HLR_NUMBER_IE = 0x09, + OSMO_GSUP_PDP_CONTEXT_ID_IE = 0x10, + OSMO_GSUP_PDP_TYPE_IE = 0x11, + OSMO_GSUP_ACCESS_POINT_NAME_IE = 0x12, + OSMO_GSUP_PDP_QOS_IE = 0x13, + OSMO_GSUP_RAND_IE = 0x20, + OSMO_GSUP_SRES_IE = 0x21, + OSMO_GSUP_KC_IE = 0x22, + /* 3G support */ + OSMO_GSUP_IK_IE = 0x23, + OSMO_GSUP_CK_IE = 0x24, + OSMO_GSUP_AUTN_IE = 0x25, + OSMO_GSUP_AUTS_IE = 0x26, + OSMO_GSUP_RES_IE = 0x27, +}; + +/*! GSUP message type */ +enum osmo_gsup_message_type { + OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST = 0b00000100, + OSMO_GSUP_MSGT_UPDATE_LOCATION_ERROR = 0b00000101, + OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT = 0b00000110, + + OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST = 0b00001000, + OSMO_GSUP_MSGT_SEND_AUTH_INFO_ERROR = 0b00001001, + OSMO_GSUP_MSGT_SEND_AUTH_INFO_RESULT = 0b00001010, + + OSMO_GSUP_MSGT_PURGE_MS_REQUEST = 0b00001100, + OSMO_GSUP_MSGT_PURGE_MS_ERROR = 0b00001101, + OSMO_GSUP_MSGT_PURGE_MS_RESULT = 0b00001110, + + OSMO_GSUP_MSGT_INSERT_DATA_REQUEST = 0b00010000, + OSMO_GSUP_MSGT_INSERT_DATA_ERROR = 0b00010001, + OSMO_GSUP_MSGT_INSERT_DATA_RESULT = 0b00010010, + + OSMO_GSUP_MSGT_DELETE_DATA_REQUEST = 0b00010100, + OSMO_GSUP_MSGT_DELETE_DATA_ERROR = 0b00010101, + OSMO_GSUP_MSGT_DELETE_DATA_RESULT = 0b00010110, + + OSMO_GSUP_MSGT_LOCATION_CANCEL_REQUEST = 0b00011100, + OSMO_GSUP_MSGT_LOCATION_CANCEL_ERROR = 0b00011101, + OSMO_GSUP_MSGT_LOCATION_CANCEL_RESULT = 0b00011110, +}; + +#define OSMO_GSUP_IS_MSGT_REQUEST(msgt) (((msgt) & 0b00000011) == 0b00) +#define OSMO_GSUP_IS_MSGT_ERROR(msgt) (((msgt) & 0b00000011) == 0b01) +#define OSMO_GSUP_TO_MSGT_ERROR(msgt) (((msgt) & 0b11111100) | 0b01) + +enum osmo_gsup_cancel_type { + OSMO_GSUP_CANCEL_TYPE_UPDATE = 1, /* on wire: 0 */ + OSMO_GSUP_CANCEL_TYPE_WITHDRAW = 2, /* on wire: 1 */ +}; + +/*! parsed/decoded PDP context information */ +struct osmo_gsup_pdp_info { + unsigned int context_id; + int have_info; + /*! Type of PDP context */ + uint16_t pdp_type; + /*! APN information, still in encoded form. Can be NULL if no + * APN information included */ + const uint8_t *apn_enc; + /*! length (in octets) of apn_enc */ + size_t apn_enc_len; + /*! QoS information, still in encoded form. Can be NULL if no + * QoS information included */ + const uint8_t *qos_enc; + /*! length (in octets) of qos_enc */ + size_t qos_enc_len; +}; + +/*! parsed/decoded GSUP protocol message */ +struct osmo_gsup_message { + enum osmo_gsup_message_type message_type; + char imsi[GSM23003_IMSI_MAX_DIGITS+2]; + enum gsm48_gmm_cause cause; + enum osmo_gsup_cancel_type cancel_type; + int pdp_info_compl; + int freeze_ptmsi; + struct osmo_auth_vector auth_vectors[OSMO_GSUP_MAX_NUM_AUTH_INFO]; + size_t num_auth_vectors; + struct osmo_gsup_pdp_info pdp_infos[OSMO_GSUP_MAX_NUM_PDP_INFO]; + size_t num_pdp_infos; + const uint8_t *msisdn_enc; + size_t msisdn_enc_len; + const uint8_t *hlr_enc; + size_t hlr_enc_len; + const uint8_t *auts; +}; + +int osmo_gsup_decode(const uint8_t *data, size_t data_len, + struct osmo_gsup_message *gsup_msg); +void osmo_gsup_encode(struct msgb *msg, const struct osmo_gsup_message *gsup_msg); |