Declarations for various sigtran functions. More...

#include <osmocom/core/linuxlist.h>
#include <osmocom/core/timer.h>
#include <osmocom/sccp/sccp.h>
#include <osmocom/core/select.h>

Include dependency graph for sigtran.h:

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Go to the source code of this file.

Data Structures
struct	rlm_sigtran

struct	rlm_sigtran_thread

struct	sigtran_conn
	Represents a connection to a remote SS7 entity. More...

struct	sigtran_conn_conf
	Configures a M3UA/MTP3/SCCP stack. More...

struct	sigtran_m3ua_route

struct	sigtran_map_send_auth_info_req
	MAP send auth info request. More...

struct	sigtran_map_send_auth_info_res
	MAP send auth info response. More...

struct	sigtran_sccp_address
	Structure representing a complete Q.173 SCCP address. More...

struct	sigtran_sccp_global_title

struct	sigtran_transaction
	Request and response from the event loop. More...

struct	sigtran_transaction.ctx

struct	sigtran_transaction.request

struct	sigtran_transaction.response

struct	sigtran_vector
	Authentication vector returned by HLR. More...

union	sigtran_vector.__unnamed176__

struct	sigtran_vector.__unnamed176__.sim

struct	sigtran_vector.__unnamed176__.umts

Typedefs
typedef struct rlm_sigtran	rlm_sigtran_t

typedef struct rlm_sigtran_thread	rlm_sigtran_thread_t

typedef struct sigtran_conn_conf	sigtran_conn_conf_t
	Configures a M3UA/MTP3/SCCP stack. More...

typedef struct sigtran_conn	sigtran_conn_t
	Represents a connection to a remote SS7 entity. More...

typedef struct sigtran_m3ua_route	sigtran_m3ua_route_t

typedef struct sigtran_map_send_auth_info_req	sigtran_map_send_auth_info_req_t
	MAP send auth info request. More...

typedef struct sigtran_map_send_auth_info_res	sigtran_map_send_auth_info_res_t
	MAP send auth info response. More...

typedef struct sigtran_sccp_address	sigtran_sccp_address_t
	Structure representing a complete Q.173 SCCP address. More...

typedef struct sigtran_sccp_global_title	sigtran_sccp_global_title_t

typedef struct sigtran_transaction	sigtran_transaction_t
	Request and response from the event loop. More...

typedef struct sigtran_vector	sigtran_vector_t

Enumerations
enum	sigtran_request_type_t { SIGTRAN_REQUEST_THREAD_REGISTER , SIGTRAN_REQUEST_THREAD_UNREGISTER , SIGTRAN_REQUEST_LINK_UP , SIGTRAN_REQUEST_LINK_DOWN , SIGTRAN_REQUEST_MAP_SEND_AUTH_INFO , SIGTRAN_REQUEST_EXIT , SIGTRAN_REQUEST_TEST }

enum	sigtran_response_type_t { SIGTRAN_RESPONSE_OK , SIGTRAN_RESPONSE_NOOP , SIGTRAN_RESPONSE_NOTFOUND , SIGTRAN_RESPONSE_FAIL }

enum	sigtran_vector_type_t { SIGTRAN_VECTOR_TYPE_SIM_TRIPLETS , SIGTRAN_VECTOR_TYPE_UMTS_QUINTUPLETS }
	Vector types. More...

Functions
int	sigtran_ascii_to_tbcd (TALLOC_CTX ctx, uint8_t out, char const ascii)

int	sigtran_client_do_transaction (int fd, sigtran_transaction_t *txn)

int	sigtran_client_link_down (sigtran_conn_t const **conn)
	Destroy a connection. More...

int	sigtran_client_link_up (sigtran_conn_t const *out, sigtran_conn_conf_t const conf)
	Create a new connection. More...

unlang_action_t	sigtran_client_map_send_auth_info (rlm_rcode_t p_result, rlm_sigtran_t const inst, request_t request, sigtran_conn_t const conn, int fd)
	Create a MAP_SEND_AUTH_INFO request. More...

int	sigtran_client_thread_register (fr_event_list_t *el)
	Called by a new thread to register a new req_pipe. More...

int	sigtran_client_thread_unregister (fr_event_list_t *el, int req_pipe_fd)
	Signal that libosmo should unregister the other side of the pipe. More...

int	sigtran_event_exit (void)
	Signal that libosmo should exit. More...

int	sigtran_event_start (void)
	Start the libosmo event loop. More...

int	sigtran_event_submit (struct osmo_fd ofd, sigtran_transaction_t txn)
	Send response. More...

void	sigtran_log_init (TALLOC_CTX *ctx)
	Patch our logging system into libosmo's. More...

void	sigtran_sccp_global_free (void)

int	sigtran_sccp_global_init (void)

int	sigtran_sccp_global_title (TALLOC_CTX ctx, uint8_t out, int gt_ind, char const digits, uint8_t tt, uint8_t np, uint8_t es, uint8_t nai)
	Convert a global title to wire format for SCCP. More...

void	sigtran_sccp_incoming (struct mtp_link_set set, struct msgb msg, int sls)

int	sigtran_sscp_init (sigtran_conn_t *conn)
	Initialise libscctp. More...

int	sigtran_tcap_outgoing (UNUSED struct msgb msg_in, void ctx, sigtran_transaction_t txn, struct osmo_fd ofd)

Variables
uint8_t const	ascii_to_tbcd []
	Conversion table to transform ASCII to Telephony Binary Coded Decimal. More...

int	ctrl_pipe [2]

uint8_t const	is_char_tbcd []
	Check is a char is valid Telephony Binary Coded Decimal. More...

Detailed Description

Declarations for various sigtran functions.

Id: c8deb64a8427b16d00790913ba1ecd115511c204

Author: Arran Cudbard-Bell

Copyright: 2016 Network RADIUS SAS (licen.nosp@m.se@n.nosp@m.etwor.nosp@m.krad.nosp@m.ius.c.nosp@m.om)

Definition in file sigtran.h.

Data Structure Documentation

◆ rlm_sigtran

struct rlm_sigtran

Definition at line 231 of file sigtran.h.

Collaboration diagram for rlm_sigtran:

Data Fields
sigtran_conn_t const *	conn	Linkset associated with this instance.
sigtran_conn_conf_t	conn_conf	Connection configuration.
tmpl_t *	imsi	Subscriber identifier.

◆ rlm_sigtran_thread

struct rlm_sigtran_thread

Definition at line 239 of file sigtran.h.

Data Fields
int	fd	File descriptor.

◆ sigtran_conn

struct sigtran_conn

Represents a connection to a remote SS7 entity.

Holds data necessary for M3UA/MTP3/SCCP.

Definition at line 180 of file sigtran.h.

Collaboration diagram for sigtran_conn:

Data Fields
struct bsc_data *	bsc_data
sigtran_conn_conf_t *	conf
struct mtp_link *	mtp3_link
struct mtp_link_set *	mtp3_link_set

◆ sigtran_conn_conf

struct sigtran_conn_conf

Configures a M3UA/MTP3/SCCP stack.

Definition at line 143 of file sigtran.h.

Collaboration diagram for sigtran_conn_conf:

Data Fields
uint32_t	m3ua_ack_timeout
uint32_t	m3ua_beat_interval
uint16_t	m3ua_link_index
sigtran_m3ua_route_t	m3ua_routes	Routes to register with SG.
bool	m3ua_routes_is_set	Routes section was provided.
uint16_t	m3ua_routing_context
int	m3ua_traffic_mode
char const *	m3ua_traffic_mode_str
tmpl_t *	map_version	Application context version.
uint32_t	mtp3_dpc
uint32_t	mtp3_opc	MTP3 point codes (24bit!).
bool	sccp_ai8	Address indicator bit 8.
sigtran_sccp_address_t	sccp_called	The calling SCCP address.
struct sockaddr_sccp	sccp_called_sockaddr	Parsed version of the above.
sigtran_sccp_address_t	sccp_calling	The called SCCP address.
struct sockaddr_sccp	sccp_calling_sockaddr	Parsed version of the above.
bool	sccp_route_on_ssn	Whether we should route on subsystem number.
fr_ipaddr_t	sctp_dst_ipaddr	IP of the Service Gateway.
uint16_t	sctp_dst_port	SCTP port of the service gateway.
fr_ipaddr_t	sctp_src_ipaddr	Local IP to originate traffic from.
uint16_t	sctp_src_port	Local port to originate traffic from.
uint32_t	sctp_timeout

◆ sigtran_m3ua_route

struct sigtran_m3ua_route

Definition at line 131 of file sigtran.h.

Data Fields
uint32_t	dpc	Destination point code.
bool	dpc_is_set	Whether the DPC was set.
uint32_t *	opc	Origin point code.
uint32_t *	si	Service indicator.

◆ sigtran_map_send_auth_info_req

struct sigtran_map_send_auth_info_req

MAP send auth info request.

Definition at line 191 of file sigtran.h.

Collaboration diagram for sigtran_map_send_auth_info_req:

Data Fields
sigtran_conn_t const *	conn	Connection to send request on.
uint8_t *	imsi	BCD encoded IMSI.
unsigned int	num_vectors	Number of vectors requested.
uint8_t	version	Application context version.

◆ sigtran_map_send_auth_info_res

struct sigtran_map_send_auth_info_res

MAP send auth info response.

Definition at line 226 of file sigtran.h.

Collaboration diagram for sigtran_map_send_auth_info_res:

Data Fields
int	error
sigtran_vector_t *	vector	Linked list of vectors.

◆ sigtran_sccp_address

struct sigtran_sccp_address

Structure representing a complete Q.173 SCCP address.

Definition at line 120 of file sigtran.h.

Collaboration diagram for sigtran_sccp_address:

Data Fields
sigtran_sccp_global_title_t	gt
bool	gt_is_set	Whether a global title was specified.
uint32_t	pc	14bit point code.
bool	pc_is_set	Point code is set.
uint8_t	ssn	Subsystem number.
bool	ssn_is_set	Subsystem number is set.

◆ sigtran_sccp_global_title

struct sigtran_sccp_global_title

Definition at line 101 of file sigtran.h.

Data Fields
char const *	address	Address digits.
uint8_t	es	Encoding scheme.
bool	es_is_set	Encoding scheme is set.
uint8_t	nai	Nature of address indicator.
bool	nai_is_set	Nature of address indicator is set.
uint8_t	np	Numbering plan.
bool	np_is_set	Numbering plan is set.
uint8_t	tt	Translation type.
bool	tt_is_set	Translation_type was provided.

◆ sigtran_transaction

struct sigtran_transaction

Request and response from the event loop.

We allocate the whole thing on the client side, as the client will be blocked waiting on the response from the event loop, and won't mind extra memory being allocated from this ctx.

Definition at line 75 of file sigtran.h.

Collaboration diagram for sigtran_transaction:

Data Fields
struct sigtran_transaction	ctx
fr_rb_node_t	node	Entry in the tree of transactions.
struct sigtran_transaction	request
struct sigtran_transaction	response

◆ sigtran_transaction.ctx

struct sigtran_transaction.ctx

Definition at line 87 of file sigtran.h.

Data Fields
bool	defunct	Response should be deleted and not processed.
uint8_t	invoke_id	Sequence number (within transaction).
struct osmo_fd *	ofd	The FD the txn was received on.
uint32_t	otid	Transaction ID.
request_t *	request
struct osmo_timer_list	timer	Timer data.

◆ sigtran_transaction.request

struct sigtran_transaction.request

Definition at line 78 of file sigtran.h.

Data Fields
void *	data	Data for the request.
sigtran_request_type_t	type	Type of request.

◆ sigtran_transaction.response

struct sigtran_transaction.response

Definition at line 82 of file sigtran.h.

Data Fields
void *	data	Data for the response.
sigtran_response_type_t	type	Type of response.

◆ sigtran_vector

struct sigtran_vector

Authentication vector returned by HLR.

Definition at line 203 of file sigtran.h.

Collaboration diagram for sigtran_vector:

Data Fields
union sigtran_vector	__unnamed__
sigtran_vector_t *	next	Next vector in list.
sigtran_vector_type_t	type	Type of vector returned.

◆ sigtran_vector.unnamed176

union sigtran_vector.__unnamed176__

Definition at line 204 of file sigtran.h.

Data Fields
__unnamed176__	sim
__unnamed176__	umts

◆ sigtran_vector.unnamed176.sim

struct sigtran_vector.__unnamed176__.sim

Definition at line 212 of file sigtran.h.

Data Fields
uint8_t *	kc	Encryption key.
uint8_t *	rand	Random challenge.
uint8_t *	sres	Signing response.

◆ sigtran_vector.unnamed176.umts

struct sigtran_vector.__unnamed176__.umts

Definition at line 205 of file sigtran.h.

Data Fields
uint8_t *	authn	Authentication response.
uint8_t *	ck	Encryption key.
uint8_t *	ik	Integrity key.
uint8_t *	rand	Random challenge.
uint8_t *	xres

Typedef Documentation

◆ rlm_sigtran_t

typedef struct rlm_sigtran rlm_sigtran_t

◆ rlm_sigtran_thread_t

typedef struct rlm_sigtran_thread rlm_sigtran_thread_t

◆ sigtran_conn_conf_t

typedef struct sigtran_conn_conf sigtran_conn_conf_t

Configures a M3UA/MTP3/SCCP stack.

◆ sigtran_conn_t

typedef struct sigtran_conn sigtran_conn_t

Represents a connection to a remote SS7 entity.

Holds data necessary for M3UA/MTP3/SCCP.

◆ sigtran_m3ua_route_t

typedef struct sigtran_m3ua_route sigtran_m3ua_route_t

◆ sigtran_map_send_auth_info_req_t

typedef struct sigtran_map_send_auth_info_req sigtran_map_send_auth_info_req_t

MAP send auth info request.

◆ sigtran_map_send_auth_info_res_t

typedef struct sigtran_map_send_auth_info_res sigtran_map_send_auth_info_res_t

MAP send auth info response.

◆ sigtran_sccp_address_t

typedef struct sigtran_sccp_address sigtran_sccp_address_t

Structure representing a complete Q.173 SCCP address.

◆ sigtran_sccp_global_title_t

typedef struct sigtran_sccp_global_title sigtran_sccp_global_title_t

◆ sigtran_transaction_t

typedef struct sigtran_transaction sigtran_transaction_t

Request and response from the event loop.

We allocate the whole thing on the client side, as the client will be blocked waiting on the response from the event loop, and won't mind extra memory being allocated from this ctx.

◆ sigtran_vector_t

typedef struct sigtran_vector sigtran_vector_t

Definition at line 1 of file sigtran.h.

Enumeration Type Documentation

◆ sigtran_request_type_t

enum sigtran_request_type_t

Enumerator
SIGTRAN_REQUEST_THREAD_REGISTER	New worker thread to register.
SIGTRAN_REQUEST_THREAD_UNREGISTER	Worker thread to unregister.
SIGTRAN_REQUEST_LINK_UP	Bring up a link.
SIGTRAN_REQUEST_LINK_DOWN	Take down a link.
SIGTRAN_REQUEST_MAP_SEND_AUTH_INFO	Request auth info.
SIGTRAN_REQUEST_EXIT	Causes the event loop to exit.
SIGTRAN_REQUEST_TEST

Definition at line 42 of file sigtran.h.

◆ sigtran_response_type_t

enum sigtran_response_type_t

Enumerator
SIGTRAN_RESPONSE_OK	Request succeeded.
SIGTRAN_RESPONSE_NOOP	Request did nothing.
SIGTRAN_RESPONSE_NOTFOUND	User or device Not found.
SIGTRAN_RESPONSE_FAIL	Request failed.

Definition at line 54 of file sigtran.h.

◆ sigtran_vector_type_t

enum sigtran_vector_type_t

Vector types.

Enumerator
SIGTRAN_VECTOR_TYPE_SIM_TRIPLETS	RAND, SRES, Kc.
SIGTRAN_VECTOR_TYPE_UMTS_QUINTUPLETS	RAND, XRES, CK, IK, AUTN.

Definition at line 64 of file sigtran.h.

Function Documentation

◆ sigtran_ascii_to_tbcd()

int sigtran_ascii_to_tbcd	(	TALLOC_CTX *	ctx,
		uint8_t **	out,
		char const *	ascii
	)

Definition at line 93 of file sigtran.c.

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◆ sigtran_client_do_transaction()

int sigtran_client_do_transaction	(	int	fd,
		sigtran_transaction_t *	txn
	)

Definition at line 45 of file client.c.

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◆ sigtran_client_link_down()

int sigtran_client_link_down ( sigtran_conn_t const ** conn )

Destroy a connection.

Gracefully shutdown the links for a connection and free it.

Definition at line 250 of file client.c.

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◆ sigtran_client_link_up()

int sigtran_client_link_up	(	sigtran_conn_t const **	out,
		sigtran_conn_conf_t const *	conn_conf
	)

Create a new connection.

Register the required links for a connection.

Todo:: Return struct representing the connection

Definition at line 225 of file client.c.

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◆ sigtran_client_map_send_auth_info()

unlang_action_t sigtran_client_map_send_auth_info	(	rlm_rcode_t *	p_result,
		rlm_sigtran_t const *	inst,
		request_t *	request,
		sigtran_conn_t const *	conn,
		int	fd
	)

Create a MAP_SEND_AUTH_INFO request.

Parameters

p_result	Where to write the result.
inst	of rlm_sigtran.
request	The current request.
conn	current connection.
fd	file descriptor on which the transaction is done

Definition at line 406 of file client.c.

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◆ sigtran_client_thread_register()

int sigtran_client_thread_register ( fr_event_list_t * el )

Called by a new thread to register a new req_pipe.

Returns

The client side of the req_pipe on success.
-1 on error.

Definition at line 144 of file client.c.

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◆ sigtran_client_thread_unregister()

int sigtran_client_thread_unregister	(	fr_event_list_t *	el,
		int	req_pipe_fd
	)

Signal that libosmo should unregister the other side of the pipe.

Parameters

[in]	el	the request pipe was registered to.
[in]	req_pipe_fd	The rlm_sigtran side of the req_pipe.

Definition at line 193 of file client.c.

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◆ sigtran_event_exit()

int sigtran_event_exit ( void )

Signal that libosmo should exit.

Definition at line 581 of file event.c.

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◆ sigtran_event_start()

int sigtran_event_start ( void )

Start the libosmo event loop.

Definition at line 525 of file event.c.

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◆ sigtran_event_submit()

int sigtran_event_submit	(	struct osmo_fd *	ofd,
		sigtran_transaction_t *	txn
	)

Send response.

Note: Works for both blocking and non-blocking sockets

Parameters

[in]	ofd	to write response notification to.
[in]	txn	we're confirming.

Definition at line 283 of file event.c.

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◆ sigtran_log_init()

void sigtran_log_init ( TALLOC_CTX * ctx )

Patch our logging system into libosmo's.

Definition at line 62 of file log.c.

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◆ sigtran_sccp_global_free()

void sigtran_sccp_global_free ( void )

Definition at line 385 of file sccp.c.

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◆ sigtran_sccp_global_init()

int sigtran_sccp_global_init ( void )

Definition at line 371 of file sccp.c.

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◆ sigtran_sccp_global_title()

int sigtran_sccp_global_title	(	TALLOC_CTX *	ctx,
		uint8_t **	out,
		int	gt_ind,
		char const *	digits,
		uint8_t	tt,
		uint8_t	np,
		uint8_t	es,
		uint8_t	nai
	)

Convert a global title to wire format for SCCP.

Parameters

[in]	ctx	To allocate the buffer in.
[out]	out	Where to write the SCCP global title value.
[in]	gt_ind	One of the SCCP_TITLE_IND_* macros. SCCP_TITLE_IND_NONE - Don't call this function... SCCP_TITLE_IND_NATURE_ONLY - Nature of address indicator only. SCCP_TITLE_IND_TRANSLATION_ONLY - Translation type indicator only. SCCP_TITLE_IND_TRANS_NUM_ENC - Translation type, numbering plan, encoding scheme. SCCP_TITLE_IND_TRANS_NUM_ENC_NATURE - Translation type, numbering plan, encoding scheme, nature of address indicator.
[in]	digits	To convert to BCD (with nibbles reversed).
[in]	tt	Title translation.
[in]	es	Encoding scheme (specify in lower nibble). 0x00 - Unknown 0x01 - BCD odd number of digits. 0x02 - BCD even number of digits. 0x04 - National specific. 0x05 to 0x0e - Spare. 0x0f - Reserved.
[in]	np	Numbering plan (specify in lower nibble, will shift). 0x00 - Unknown. 0x01 - ISDN. 0x02 - Generic numbering plan. 0x03 - Data number plan. 0x04 - Telex number plan. 0x05 - Maritime mobile number plan. 0x06 - Land mobile numbering plan. 0x07 - ISDN/mobile numbering plan. 0x08 to 0x0d - spare. 0x0e - Private or network specific numbering plan. 0x0f - Reserved.
[in]	nai	Nature of address indicator. 0x00 - Unknown 0x01 - Subscriber number. 0x02 - Reserved for national use. 0x03 - National significant number. 0x04 - International number. Bit 8 (0xf0) 0 - even number of address signals, 1 - odd number of address signals.

Returns

0 on success.
-1 on failure.

Definition at line 170 of file sigtran.c.

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◆ sigtran_sccp_incoming()

void sigtran_sccp_incoming	(	struct mtp_link_set *	set,
		struct msgb *	msg,
		int	sls
	)

◆ sigtran_sscp_init()

int sigtran_sscp_init ( sigtran_conn_t * conn )

Initialise libscctp.

Definition at line 360 of file sccp.c.

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◆ sigtran_tcap_outgoing()

int sigtran_tcap_outgoing	(	UNUSED struct msgb *	msg_in,
		void *	ctx,
		sigtran_transaction_t *	txn,
		struct osmo_fd *	ofd
	)

Variable Documentation

◆ ascii_to_tbcd

uint8_t const ascii_to_tbcd[]

extern

Conversion table to transform ASCII to Telephony Binary Coded Decimal.

Should be safe to use without validation, invalid digits will be replaced with zeroes.

Definition at line 50 of file sigtran.c.

◆ ctrl_pipe

int ctrl_pipe[2]

extern

Definition at line 78 of file event.c.

◆ is_char_tbcd

uint8_t const is_char_tbcd[]

extern

Check is a char is valid Telephony Binary Coded Decimal.

Definition at line 73 of file sigtran.c.

Data Structures

Typedefs

Enumerations

Functions

Variables

Detailed Description

Data Structure Documentation

◆ rlm_sigtran

◆ rlm_sigtran_thread

◆ sigtran_conn

◆ sigtran_conn_conf

◆ sigtran_m3ua_route

◆ sigtran_map_send_auth_info_req

◆ sigtran_map_send_auth_info_res

◆ sigtran_sccp_address

◆ sigtran_sccp_global_title

◆ sigtran_transaction

◆ sigtran_transaction.ctx

◆ sigtran_transaction.request

◆ sigtran_transaction.response

◆ sigtran_vector

◆ sigtran_vector.__unnamed176__

◆ sigtran_vector.__unnamed176__.sim

◆ sigtran_vector.__unnamed176__.umts

Typedef Documentation

◆ rlm_sigtran_t

◆ rlm_sigtran_thread_t

◆ sigtran_conn_conf_t

◆ sigtran_conn_t

◆ sigtran_m3ua_route_t

◆ sigtran_map_send_auth_info_req_t

◆ sigtran_map_send_auth_info_res_t

◆ sigtran_sccp_address_t

◆ sigtran_sccp_global_title_t

◆ sigtran_transaction_t

◆ sigtran_vector_t

Enumeration Type Documentation

◆ sigtran_request_type_t

◆ sigtran_response_type_t

◆ sigtran_vector_type_t

Function Documentation

◆ sigtran_ascii_to_tbcd()

◆ sigtran_client_do_transaction()

◆ sigtran_client_link_down()

◆ sigtran_client_link_up()

◆ sigtran_client_map_send_auth_info()

◆ sigtran_client_thread_register()

◆ sigtran_client_thread_unregister()

◆ sigtran_event_exit()

◆ sigtran_event_start()

◆ sigtran_event_submit()

◆ sigtran_log_init()

◆ sigtran_sccp_global_free()

◆ sigtran_sccp_global_init()

◆ sigtran_sccp_global_title()

◆ sigtran_sccp_incoming()

◆ sigtran_sscp_init()

◆ sigtran_tcap_outgoing()

Variable Documentation

◆ ascii_to_tbcd

◆ ctrl_pipe

◆ is_char_tbcd

◆ sigtran_vector.unnamed176

◆ sigtran_vector.unnamed176.sim

◆ sigtran_vector.unnamed176.umts