gsm29118.c File Reference

#include <osmocom/core/utils.h>
#include <osmocom/gsm/tlv.h>
#include <osmocom/gsm/protocol/gsm_29_118.h>
#include <osmocom/gsm/gsm29118.h>
#include <osmocom/gsm/apn.h>
#include <osmocom/gsm/gsm48.h>

Functions
struct msgb *	gsm29118_msgb_alloc (void)
static int	msgb_sgsap_name_put (struct msgb *msg, enum sgsap_iei iei, const char *name)
static void	msgb_sgsap_imsi_put (struct msgb *msg, const char *imsi)
static void	msgb_sgsap_lai_put (struct msgb *msg, const struct osmo_location_area_id *lai)
static struct msgb *	create_simple_msg (enum sgsap_msg_type msg_type, const char *imsi)
struct msgb *	gsm29118_create_alert_req (const char *imsi)
struct msgb *	gsm29118_create_dl_ud (const char *imsi, struct msgb *nas_msg)
struct msgb *	gsm29118_create_eps_det_ack (const char *imsi)
struct msgb *	gsm29118_create_imsi_det_ack (const char *imsi)
struct msgb *	gsm29118_create_lu_ack (const char *imsi, const struct osmo_location_area_id *lai, const uint8_t *new_id, unsigned int new_id_len)
	8.9 SGsAP-LOCATION-UPDATE-ACCEPT. More...
struct msgb *	gsm29118_create_lu_rej (const char *imsi, uint8_t rej_cause, const struct osmo_location_area_id *lai)
struct msgb *	gsm29118_create_mm_info_req (const char *imsi, const uint8_t *mm_info, uint8_t mm_info_len)
struct msgb *	gsm29118_create_paging_req (struct gsm29118_paging_req *params)
struct msgb *	gsm29118_create_reset_ack (struct gsm29118_reset_msg *params)
struct msgb *	gsm29118_create_reset_ind (struct gsm29118_reset_msg *params)
struct msgb *	gsm29118_create_status (const char *imsi, enum sgsap_sgs_cause cause, const struct msgb *err_msg)
struct msgb *	gsm29118_create_release_req (const char *imsi, const uint8_t sgs_cause)
struct msgb *	gsm29118_create_service_abort_req (const char *imsi)

Variables
const struct value_string	sgsap_msg_type_names []
const struct value_string	sgsap_iei_names []
const struct value_string	sgsap_eps_lu_type_names []
const struct value_string	sgsap_ismi_det_eps_type_names []
const struct value_string	sgsap_ismi_det_noneps_type_names []
const struct value_string	sgsap_service_ind_names []
const struct value_string	sgsap_sgs_cause_names []
const struct value_string	sgsap_ue_emm_mode_names []
const struct tlv_definition	sgsap_ie_tlvdef

Function Documentation

create_simple_msg()

static struct msgb * create_simple_msg ( enum sgsap_msg_type  msg_type, const char *  imsi  )

static

References gsm29118_msgb_alloc(), msg, msg_type, msgb_push_u8(), and msgb_sgsap_imsi_put().

Referenced by gsm29118_create_alert_req(), gsm29118_create_eps_det_ack(), gsm29118_create_imsi_det_ack(), and gsm29118_create_service_abort_req().

gsm29118_create_alert_req()

struct msgb * gsm29118_create_alert_req

(

const char *

imsi

)

References create_simple_msg(), and SGSAP_MSGT_ALERT_REQ.

gsm29118_create_dl_ud()

struct msgb * gsm29118_create_dl_ud	(	const char *	imsi,
		struct msgb *	nas_msg
	)

References msgb::data, gsm29118_msgb_alloc(), msgb::len, msg, msgb_push_u8(), msgb_sgsap_imsi_put(), msgb_tlv_put(), SGSAP_IE_NAS_MSG_CONTAINER, and SGSAP_MSGT_DL_UD.

gsm29118_create_eps_det_ack()

struct msgb * gsm29118_create_eps_det_ack

(

const char *

imsi

)

References create_simple_msg(), and SGSAP_MSGT_EPS_DET_ACK.

gsm29118_create_imsi_det_ack()

struct msgb * gsm29118_create_imsi_det_ack

(

const char *

imsi

)

References create_simple_msg(), and SGSAP_MSGT_IMSI_DET_ACK.

gsm29118_create_lu_ack()

struct msgb * gsm29118_create_lu_ack	(	const char *	imsi,
		const struct osmo_location_area_id *	lai,
		const uint8_t *	new_id,
		unsigned int	new_id_len
	)

8.9 SGsAP-LOCATION-UPDATE-ACCEPT.

Parameters

[in]	imsi	IMSI of the subscriber.
[in]	lai	Location Area Identity (optional, may be NULL).
[in]	new_id	value part of new Mobile Identity (optional, may be NULL).
[in]	new_id_len	length of new_id in octets.

Returns

callee-allocated msgb with the encoded message

References gsm29118_msgb_alloc(), lai, msg, msgb_push_u8(), msgb_sgsap_imsi_put(), msgb_sgsap_lai_put(), msgb_tlv_put(), SGSAP_IE_MOBILE_ID, and SGSAP_MSGT_LOC_UPD_ACK.

gsm29118_create_lu_rej()

struct msgb * gsm29118_create_lu_rej	(	const char *	imsi,
		uint8_t	rej_cause,
		const struct osmo_location_area_id *	lai
	)

References gsm29118_msgb_alloc(), lai, msg, msgb_push_u8(), msgb_sgsap_imsi_put(), msgb_sgsap_lai_put(), msgb_tlv_put(), SGSAP_IE_REJECT_CAUSE, and SGSAP_MSGT_LOC_UPD_REJ.

gsm29118_create_mm_info_req()

struct msgb * gsm29118_create_mm_info_req	(	const char *	imsi,
		const uint8_t *	mm_info,
		uint8_t	mm_info_len
	)

References gsm29118_msgb_alloc(), msg, msgb_push_u8(), msgb_sgsap_imsi_put(), msgb_tlv_put(), SGSAP_IE_MM_INFO, and SGSAP_MSGT_MM_INFO_REQ.

gsm29118_create_paging_req()

struct msgb * gsm29118_create_paging_req

(

struct gsm29118_paging_req *

params

)

References gsm29118_msgb_alloc(), msg, msgb_free(), msgb_push_u8(), msgb_sgsap_imsi_put(), msgb_sgsap_lai_put(), msgb_sgsap_name_put(), msgb_tlv_put(), params, SGSAP_IE_SERVICE_INDICATOR, SGSAP_IE_VLR_NAME, and SGSAP_MSGT_PAGING_REQ.

gsm29118_create_release_req()

struct msgb * gsm29118_create_release_req	(	const char *	imsi,
		const uint8_t	sgs_cause
	)

References gsm29118_msgb_alloc(), msg, msgb_push_u8(), msgb_sgsap_imsi_put(), msgb_tlv_put(), SGSAP_IE_SGS_CAUSE, and SGSAP_MSGT_RELEASE_REQ.

gsm29118_create_reset_ack()

struct msgb * gsm29118_create_reset_ack

(

struct gsm29118_reset_msg *

params

)

References gsm29118_msgb_alloc(), msg, msgb_free(), msgb_push_u8(), msgb_sgsap_name_put(), params, SGSAP_IE_MME_NAME, SGSAP_IE_VLR_NAME, and SGSAP_MSGT_RESET_ACK.

gsm29118_create_reset_ind()

struct msgb * gsm29118_create_reset_ind

(

struct gsm29118_reset_msg *

params

)

References gsm29118_msgb_alloc(), msg, msgb_free(), msgb_push_u8(), msgb_sgsap_name_put(), params, SGSAP_IE_MME_NAME, SGSAP_IE_VLR_NAME, and SGSAP_MSGT_RESET_IND.

gsm29118_create_service_abort_req()

struct msgb * gsm29118_create_service_abort_req

(

const char *

imsi

)

References create_simple_msg(), and SGSAP_MSGT_SERVICE_ABORT_REQ.

gsm29118_create_status()

struct msgb * gsm29118_create_status	(	const char *	imsi,
		enum sgsap_sgs_cause	cause,
		const struct msgb *	err_msg
	)

References cause, gsm29118_msgb_alloc(), msg, msgb_l2, msgb_l2len(), msgb_push_u8(), msgb_sgsap_imsi_put(), msgb_tlv_put(), SGSAP_IE_ERR_MSG, SGSAP_IE_SGS_CAUSE, and SGSAP_MSGT_STATUS.

gsm29118_msgb_alloc()

struct msgb * gsm29118_msgb_alloc

(

void

)

References msgb_alloc_headroom().

Referenced by create_simple_msg(), gsm29118_create_dl_ud(), gsm29118_create_lu_ack(), gsm29118_create_lu_rej(), gsm29118_create_mm_info_req(), gsm29118_create_paging_req(), gsm29118_create_release_req(), gsm29118_create_reset_ack(), gsm29118_create_reset_ind(), and gsm29118_create_status().

msgb_sgsap_imsi_put()

static void msgb_sgsap_imsi_put ( struct msgb *  msg, const char *  imsi  )

static

References gsm48_generate_mid_from_imsi(), len, msg, msgb_tlv_put(), and SGSAP_IE_IMSI.

Referenced by create_simple_msg(), gsm29118_create_dl_ud(), gsm29118_create_lu_ack(), gsm29118_create_lu_rej(), gsm29118_create_mm_info_req(), gsm29118_create_paging_req(), gsm29118_create_release_req(), and gsm29118_create_status().

msgb_sgsap_lai_put()

static void msgb_sgsap_lai_put ( struct msgb *  msg, const struct osmo_location_area_id *  lai  )

static

References gsm48_generate_lai2(), lai, msg, msgb_tlv_put(), and SGSAP_IE_LAI.

Referenced by gsm29118_create_lu_ack(), gsm29118_create_lu_rej(), and gsm29118_create_paging_req().

msgb_sgsap_name_put()

static int msgb_sgsap_name_put ( struct msgb *  msg, enum sgsap_iei  iei, const char *  name  )

static

References APN_MAXLEN, iei, len, msg, msgb_tlv_put(), name, osmo_apn_from_str(), SGS_MME_NAME_LEN, and SGSAP_IE_MME_NAME.

Referenced by gsm29118_create_paging_req(), gsm29118_create_reset_ack(), and gsm29118_create_reset_ind().

Variable Documentation

sgsap_eps_lu_type_names

const struct value_string sgsap_eps_lu_type_names[]

Initial value:

= {
        { SGSAP_EPS_LUT_IMSI_ATTACH,    "IMSI Attach" },
        { SGSAP_EPS_LUT_NORMAL,         "Normal" },
        { 0, NULL }
}

Referenced by sgsap_eps_lu_type_name().

sgsap_ie_tlvdef

const struct tlv_definition sgsap_ie_tlvdef

sgsap_iei_names

const struct value_string sgsap_iei_names[]

Referenced by sgsap_iei_name().

sgsap_ismi_det_eps_type_names

const struct value_string sgsap_ismi_det_eps_type_names[]

Initial value:

= {
        { SGSAP_ID_EPS_T_NETWORK_INITIATED,     "Network initiated IMSI detach from EPS" },
        { SGSAP_ID_EPS_T_UE_INITIATED,          "UE initiated IMSI detach from EPS" },
        { SGSAP_ID_EPS_T_EPS_NOT_ALLOWED,       "EPS not allowed" },
        { 0, NULL }
}

Referenced by sgsap_imsi_det_eps_type_name().

sgsap_ismi_det_noneps_type_names

const struct value_string sgsap_ismi_det_noneps_type_names[]

Initial value:

= {
        { SGSAP_ID_NONEPS_T_EXPLICIT_UE_NONEPS,
          "Explicit UE initiated IMSI detach from non-EPS" },
        { SGSAP_ID_NONEPS_T_COMBINED_UE_EPS_NONEPS,
          "Combined UE initiated IMSI detach from EPS and non-EPS" },
        { SGSAP_ID_NONEPS_T_IMPLICIT_UE_EPS_NONEPS,
          "Implicit network initiated IMSI detach from EPS and non-EPS" },
        { 0, NULL }
}

Referenced by sgsap_imsi_det_noneps_type_name().

sgsap_msg_type_names

const struct value_string sgsap_msg_type_names[]

Initial value:

= {
        { SGSAP_MSGT_PAGING_REQ,        "PAGING-REQUEST" },
        { SGSAP_MSGT_PAGING_REJ,        "PAGING-REJECT" },
        { SGSAP_MSGT_SERVICE_REQ,       "SERVICE-REQUEST" },
        { SGSAP_MSGT_DL_UD,             "DOWNLINK-UNITDATA" },
        { SGSAP_MSGT_UL_UD,             "UPLINK-UNITDATA" },
        { SGSAP_MSGT_LOC_UPD_REQ,       "LOCATION-UPDATE-REQUEST" },
        { SGSAP_MSGT_LOC_UPD_ACK,       "LOCATION-UPDATE-ACCEPT" },
        { SGSAP_MSGT_LOC_UPD_REJ,       "LOCATION-UPDATE-REJECT" },
        { SGSAP_MSGT_TMSI_REALL_CMPL,   "TMSI-REALLOCATION-COMPLETE" },
        { SGSAP_MSGT_ALERT_REQ,         "ALERT-REQQUEST" },
        { SGSAP_MSGT_ALERT_ACK,         "ALERT-ACK" },
        { SGSAP_MSGT_ALERT_REJ,         "ALERT-REJECT" },
        { SGSAP_MSGT_UE_ACT_IND,        "UE-ACTIVITY-INDICATION" },
        { SGSAP_MSGT_EPS_DET_IND,       "EPS-DETACH-INDICATION" },
        { SGSAP_MSGT_EPS_DET_ACK,       "EPS-DETACH-ACK" },
        { SGSAP_MSGT_IMSI_DET_IND,      "IMSI-DETACH-INDICATION" },
        { SGSAP_MSGT_IMSI_DET_ACK,      "IMSI-DETACH-ACK" },
        { SGSAP_MSGT_RESET_IND,         "RESET-INDICATION" },
        { SGSAP_MSGT_RESET_ACK,         "RESET-ACK" },
        { SGSAP_MSGT_SERVICE_ABORT_REQ, "SERVICE-ABORT-REQUEST" },
        { SGSAP_MSGT_MO_CSFB_IND,       "MO-CSFB-INDICATION" },
        { SGSAP_MSGT_MM_INFO_REQ,       "MM-INFO-REQUEST" },
        { SGSAP_MSGT_RELEASE_REQ,       "RELEASE-REQUEST" },
        { SGSAP_MSGT_STATUS,            "STATUS" },
        { SGSAP_MSGT_UE_UNREACHABLE,    "UE-UNREACHABLE" },
        { 0, NULL }
}

Referenced by sgsap_msg_type_name().

sgsap_service_ind_names

const struct value_string sgsap_service_ind_names[]

Initial value:

= {
        { SGSAP_SERV_IND_CS_CALL,       "CS Call" },
        { SGSAP_SERV_IND_SMS,           "SMS" },
        { 0, NULL }
}

Referenced by sgsap_service_ind_name().

sgsap_sgs_cause_names

const struct value_string sgsap_sgs_cause_names[]

Initial value:

= {
        { SGSAP_SGS_CAUSE_IMSI_DET_EPS,         "IMSI detached for EPS" },
        { SGSAP_SGS_CAUSE_IMSI_DET_EPS_NONEPS,  "IMSI detached for EPS and non-EPS" },
        { SGSAP_SGS_CAUSE_IMSI_UNKNOWN,         "IMSI unknown" },
        { SGSAP_SGS_CAUSE_IMSI_DET_NON_EPS,     "IMSI detached for non-EPS" },
        { SGSAP_SGS_CAUSE_IMSI_IMPL_DET_NON_EPS,"IMSI implicitly detached for non-EPS" },
        { SGSAP_SGS_CAUSE_UE_UNREACHABLE,       "UE unreachable" },
        { SGSAP_SGS_CAUSE_MSG_INCOMP_STATE,     "Message not compatible with protocol state" },
        { SGSAP_SGS_CAUSE_MISSING_MAND_IE,      "Missing mandatory IE" },
        { SGSAP_SGS_CAUSE_INVALID_MAND_IE,      "Invalid mandatory IE" },
        { SGSAP_SGS_CAUSE_COND_IE_ERROR,        "Conditional IE error" },
        { SGSAP_SGS_CAUSE_SEMANT_INCORR_MSG,    "Semantically incorrect message" },
        { SGSAP_SGS_CAUSE_MSG_UNKNOWN,          "Message unknown" },
        { SGSAP_SGS_CAUSE_MT_CSFB_REJ_USER,     "MT CSFB call rejected by user" },
        { SGSAP_SGS_CAUSE_UE_TEMP_UNREACHABLE,  "UE temporarily unreachable" },
        { 0, NULL }
}

Referenced by sgsap_sgs_cause_name().

sgsap_ue_emm_mode_names

const struct value_string sgsap_ue_emm_mode_names[]

Initial value:

= {
        { SGSAP_UE_EMM_MODE_IDLE,               "EMM-IDLE" },
        { SGSAP_UE_EMM_MODE_CONNECTED,          "EMM-CONNECTED" },
        { 0, NULL }
}

Referenced by sgsap_ue_emm_mode_name().