ipa.c File Reference

#include <stdint.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/write_queue.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/socket.h>
#include <osmocom/core/byteswap.h>
#include <osmocom/gsm/ipa.h>
#include <osmocom/gsm/protocol/ipaccess.h>
#include <osmocom/netif/ipa.h>
#include "xua_msg.h"
#include <osmocom/sigtran/mtp_sap.h>
#include <osmocom/sigtran/sccp_sap.h>
#include <osmocom/sigtran/osmo_ss7.h>
#include <osmocom/sigtran/protocol/m3ua.h>
#include <osmocom/sigtran/protocol/sua.h>
#include <osmocom/sigtran/protocol/mtp.h>
#include "xua_internal.h"
#include "ss7_as.h"
#include "ss7_asp.h"
#include "ss7_internal.h"
#include "xua_asp_fsm.h"

Functions
int	ipa_tx_xua_as (struct osmo_ss7_as *as, struct xua_msg *xua)
	Send a given xUA message via a given IPA "Application Server". More...
static int	ipa_rx_msg_ccm (struct osmo_ss7_asp *asp, struct msgb *msg)
struct osmo_ss7_as *	ipa_find_as_for_asp (struct osmo_ss7_asp *asp)
static struct msgb *	patch_sccp_with_pc (struct osmo_ss7_asp *asp, struct msgb *sccp_msg_in, uint32_t opc, uint32_t dpc)
static int	ipa_rx_msg_sccp (struct osmo_ss7_asp *asp, struct msgb *msg, uint8_t sls)
int	ipa_rx_msg (struct osmo_ss7_asp *asp, struct msgb *msg, uint8_t sls)
	process M3UA message received from socket More...

Function Documentation

ipa_find_as_for_asp()

struct osmo_ss7_as * ipa_find_as_for_asp

(

struct osmo_ss7_asp *

asp

)

References osmo_ss7_instance::as_list, osmo_ss7_asp::inst, osmo_ss7_as::list, and osmo_ss7_as_has_asp().

Referenced by ipa_asp_fsm_start(), and ipa_rx_msg_sccp().

ipa_rx_msg()

int ipa_rx_msg	(	struct osmo_ss7_asp *	asp,
		struct msgb *	msg,
		uint8_t	sls
	)

process M3UA message received from socket

Parameters

[in]	asp	Application Server Process receiving msg
[in]	msg	received message buffer. Callee takes ownership!
[in]	sls	The SLS (signaling link selector) field to use in the generated M3UA header

Returns

0 on success; negative on error

References osmo_ss7_asp::cfg, ipa_rx_msg_ccm(), ipa_rx_msg_sccp(), OSMO_SS7_ASP_PROT_IPA, osmo_ss7_asp::proto, sls, and ss7_asp_rx_unknown().

Referenced by ipa_cli_read_cb(), and ss7_asp_ipa_srv_conn_rx_cb().

ipa_rx_msg_ccm()

static int ipa_rx_msg_ccm ( struct osmo_ss7_asp *  asp, struct msgb *  msg  )

static

References osmo_ss7_asp::fi, IPA_ASP_E_ID_ACK, IPA_ASP_E_ID_GET, IPA_ASP_E_ID_RESP, LOGPASP, msg_type, XUA_ASP_E_ASPSM_BEAT, and XUA_ASP_E_ASPSM_BEAT_ACK.

Referenced by ipa_rx_msg().

ipa_rx_msg_sccp()

static int ipa_rx_msg_sccp ( struct osmo_ss7_asp *  asp, struct msgb *  msg, uint8_t  sls  )

static

References osmo_ss7_as::cfg, osmo_ss7_asp::cfg, osmo_ss7_instance::cfg, osmo_ss7_as::ctrg, dpc, m3ua_data_hdr::dpc, osmo_ss7_as::dpc, osmo_ss7_as::inst, osmo_ss7_asp::inst, ipa_find_as_for_asp(), osmo_ss7_asp::is_server, LOGPASP, m3ua_dh_to_xfer_param(), m3ua_hmdc_rx_from_l2(), m3ua_xfer_from_data(), xua_msg::mtp, MTP_SI_SCCP, osmo_ss7_instance::network_indicator, m3ua_data_hdr::ni, opc, m3ua_data_hdr::opc, OSMO_SS7_PATCH_BOTH, patch_sccp_with_pc(), osmo_ss7_routing_key::pc, osmo_ss7_as::pc_override, osmo_ss7_as::routing_key, osmo_ss7_as::sccp_mode, m3ua_data_hdr::si, sls, m3ua_data_hdr::sls, SS7_AS_CTR_RX_MSU_TOTAL, and xua_msg_free().

Referenced by ipa_rx_msg().

ipa_tx_xua_as()

int ipa_tx_xua_as	(	struct osmo_ss7_as *	as,
		struct xua_msg *	xua
	)

Send a given xUA message via a given IPA "Application Server".

Parameters

[in]	as	Application Server through which to send xua
[in]	xua	xUA message to be sent

Returns

0 on success; negative on error

References osmo_ss7_as::cfg, xua_msg_part::dat, xua_msg_part::len, LOGPAS, M3UA_IEI_PROT_DATA, MTP_SI_SCCP, OSMO_SS7_ASP_PROT_IPA, osmo_ss7_as::proto, m3ua_data_hdr::si, xua_as_transmit_msg(), and xua_msg_find_tag().

Referenced by hmrt_message_for_routing().

patch_sccp_with_pc()

static struct msgb * patch_sccp_with_pc ( struct osmo_ss7_asp *  asp, struct msgb *  sccp_msg_in, uint32_t  opc, uint32_t  dpc  )

static

References dpc, LOGPASP, opc, OSMO_SCCP_ADDR_T_PC, osmo_sccp_to_xua(), osmo_sua_to_sccp(), osmo_sccp_addr::pc, osmo_sccp_addr::presence, sua_addr_parse(), SUA_IEI_DEST_ADDR, SUA_IEI_SRC_ADDR, xua_msg_add_sccp_addr(), xua_msg_free(), and xua_msg_free_tag().

Referenced by ipa_rx_msg_sccp().