libosmo-sigtran
1.9.0.4-dc82
Osmocom SIGTRAN library
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#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/fsm.h>
#include <osmocom/netif/stream.h>
#include <osmocom/sigtran/xua_msg.h>
#include <osmocom/sigtran/sccp_sap.h>
#include <osmocom/sigtran/protocol/mtp.h>
#include <osmocom/sigtran/protocol/sua.h>
#include <osmocom/sigtran/protocol/m3ua.h>
#include <osmocom/sigtran/osmo_ss7.h>
#include "xua_as_fsm.h"
#include "xua_asp_fsm.h"
#include "xua_internal.h"
#include "sccp_internal.h"
#include "ss7_internal.h"
Macros | |
#define | CONNECTION_TIMER ( 1 * 60 * 100) |
#define | TX_INACT_TIMER ( 7 * 60 * 100) /* RFC 3868 Ch. 8. */ |
#define | RX_INACT_TIMER (15 * 60 * 100) /* RFC 3868 Ch. 8. */ |
#define | RELEASE_TIMER ( 10 * 100) |
#define | RELEASE_REP_TIMER ( 10 * 100) |
#define | INT_TIMER ( 1 * 60 * 100) |
#define | GUARD_TIMER (23 * 60 * 100) |
#define | RESET_TIMER ( 10 * 100) |
#define | SCCP_MSG_SIZE 2048 |
#define | SCCP_MSG_HEADROOM 512 |
#define | MAND_IES(msgt, ies) [msgt] = (ies) |
Functions | |
struct msgb * | sccp_msgb_alloc (const char *name) |
static struct xua_msg * | sua_gen_error (uint32_t err_code) |
static struct xua_msg * | sua_gen_error_msg (uint32_t err_code, struct msgb *msg) |
static struct msgb * | sua_to_msg (struct xua_msg *xua) |
static int | sua_tx_xua_asp (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
int | sua_tx_xua_as (struct osmo_ss7_as *as, struct xua_msg *xua) |
Send a given xUA message via a given SUA Application Server. More... | |
int | sua_parse_gt (struct osmo_sccp_gt *gt, const uint8_t *data, unsigned int datalen) |
Decode SUA Global Title according to RFC3868 Section 3.10.2.3. More... | |
int | sua_addr_parse_part (struct osmo_sccp_addr *out, const struct xua_msg_part *param) |
parse SCCP address from given xUA message part More... | |
int | sua_addr_parse (struct osmo_sccp_addr *out, struct xua_msg *xua, uint16_t iei) |
parse SCCP address from given xUA message IE More... | |
static int | sua_rx_cl (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
static int | sua_rx_co (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
static int | sua_rx_mgmt_err (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
static int | sua_rx_mgmt_ntfy (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
static int | sua_rx_mgmt (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
static int | sua_rx_asp (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
static int | sua_rx_snm (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
int | sua_rx_msg (struct osmo_ss7_asp *asp, struct msgb *msg) |
process SUA message received from socket More... | |
static struct xua_msg * | sua_encode_duna (const uint32_t *rctx, unsigned int num_rctx, const uint32_t *aff_pc, unsigned int num_aff_pc, const uint32_t *ssn, const uint32_t *smi, const char *info_string) |
static struct xua_msg * | sua_encode_dava (const uint32_t *rctx, unsigned int num_rctx, const uint32_t *aff_pc, unsigned int num_aff_pc, const uint32_t *ssn, const uint32_t *smi, const char *info_string) |
static struct xua_msg * | sua_encode_dupu (const uint32_t *rctx, unsigned int num_rctx, uint32_t dpc, uint16_t user, uint16_t cause, const char *info_string) |
void | sua_tx_snm_available (struct osmo_ss7_asp *asp, const uint32_t *rctx, unsigned int num_rctx, const uint32_t *aff_pc, unsigned int num_aff_pc, const uint32_t *aff_ssn, const uint32_t *smi, const char *info_string, bool available) |
Transmit SSNM DUNA/DAVA message indicating [un]availability of certain point code[s]. More... | |
void | sua_tx_snm_congestion (struct osmo_ss7_asp *asp, const uint32_t *rctx, unsigned int num_rctx, const uint32_t *aff_pc, unsigned int num_aff_pc, const uint32_t *ssn, const uint8_t cong_level, const char *info_string) |
Transmit SSNM SCON message indicating congestion. More... | |
void | sua_tx_dupu (struct osmo_ss7_asp *asp, const uint32_t *rctx, unsigned int num_rctx, uint32_t dpc, uint16_t user, uint16_t cause, const char *info_str) |
Transmit SSNM DUPU message indicating user unavailability. More... | |
static int | sua_rx_snm_asp (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
static int | sua_rx_snm_sg (struct osmo_ss7_asp *asp, struct xua_msg *xua) |
Variables | |
static const struct value_string | sua_iei_names [] |
static const uint16_t | cldt_mand_ies [] |
static const uint16_t | cldr_mand_ies [] |
static const struct value_string | sua_cl_msgt_names [] |
static const struct xua_msg_class | msg_class_cl |
static const uint16_t | codt_mand_ies [] |
static const uint16_t | coda_mand_ies [] |
static const uint16_t | core_mand_ies [] |
static const uint16_t | coak_mand_ies [] |
static const uint16_t | coref_mand_ies [] |
static const uint16_t | relre_mand_ies [] |
static const uint16_t | relco_mand_ies [] |
static const uint16_t | resre_mand_ies [] |
static const uint16_t | resco_mand_ies [] |
static const uint16_t | coerr_mand_ies [] |
static const uint16_t | coit_mand_ies [] |
static const struct value_string | sua_co_msgt_names [] |
static const struct xua_msg_class | msg_class_co |
const struct xua_dialect | xua_dialect_sua |
static const struct xua_msg_event_map | sua_aspxm_map [] |
#define CONNECTION_TIMER ( 1 * 60 * 100) |
#define GUARD_TIMER (23 * 60 * 100) |
#define INT_TIMER ( 1 * 60 * 100) |
#define MAND_IES | ( | msgt, | |
ies | |||
) | [msgt] = (ies) |
#define RELEASE_REP_TIMER ( 10 * 100) |
#define RELEASE_TIMER ( 10 * 100) |
#define RESET_TIMER ( 10 * 100) |
#define RX_INACT_TIMER (15 * 60 * 100) /* RFC 3868 Ch. 8. */ |
#define SCCP_MSG_HEADROOM 512 |
Referenced by sccp_msgb_alloc().
#define SCCP_MSG_SIZE 2048 |
Referenced by sccp_msgb_alloc().
#define TX_INACT_TIMER ( 7 * 60 * 100) /* RFC 3868 Ch. 8. */ |
struct msgb* sccp_msgb_alloc | ( | const char * | name | ) |
References SCCP_MSG_HEADROOM, and SCCP_MSG_SIZE.
Referenced by osmo_sua_to_sccp(), sccp_lbcs_local_bcast_pcstate(), sccp_lbcs_local_bcast_state(), sccp_scmg_tx(), sclc_rx_cldr(), and sclc_rx_cldt().
int sua_addr_parse | ( | struct osmo_sccp_addr * | out, |
struct xua_msg * | xua, | ||
uint16_t | iei | ||
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parse SCCP address from given xUA message IE
[out] | out | caller-allocated decoded SCCP address struct |
[in] | xua | xUA message |
[in] | iei | Information Element Identifier inside xua |
References sua_addr_parse_part(), and xua_msg_find_tag().
Referenced by ensure_opc_in_calling_ssn(), gen_ret_msg(), patch_sccp_with_pc(), sccp_find_user(), sccp_scrc_rx_sclc_msg(), sccp_scrc_rx_scoc_conn_msg(), sclc_rx_cldr(), sclc_rx_cldt(), scoc_fsm_idle(), scrc_rx_mtp_xfer_ind_xua(), and scu_gen_encode_and_send().
int sua_addr_parse_part | ( | struct osmo_sccp_addr * | out, |
const struct xua_msg_part * | param | ||
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parse SCCP address from given xUA message part
[out] | out | caller-allocated decoded SCCP address struct |
[in] | param | xUA message part containing address |
References xua_msg_part::dat, osmo_sccp_addr::gt, osmo_sccp_addr::ip, xua_msg_part::len, xua_parameter_hdr::len, OSMO_SCCP_ADDR_T_GT, OSMO_SCCP_ADDR_T_IPv4, OSMO_SCCP_ADDR_T_IPv6, OSMO_SCCP_ADDR_T_PC, OSMO_SCCP_ADDR_T_SSN, OSMO_SCCP_RI_GT, OSMO_SCCP_RI_SSN_IP, OSMO_SCCP_RI_SSN_PC, osmo_sccp_addr::pc, osmo_sccp_addr::presence, osmo_sccp_addr::ri, osmo_sccp_addr::ssn, SUA_IEI_GT, SUA_IEI_IPv4, SUA_IEI_IPv6, SUA_IEI_PC, SUA_IEI_SSN, sua_parse_gt(), SUA_RI_GT, SUA_RI_HOST, SUA_RI_SSN_IP, SUA_RI_SSN_PC, xua_msg_part::tag, xua_parameter_hdr::tag, osmo_sccp_addr::v4, and osmo_sccp_addr::v6.
Referenced by sua_addr_parse(), and sua_addr_to_sccp().
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References xua_msg::hdr, xua_common_hdr::msg_type, smi, sua_encode_duna(), SUA_SNM_DAUD, and SUA_SNM_DAVA.
Referenced by sua_tx_snm_available().
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References xua_msg::hdr, SUA_IEI_AFFECTED_PC, SUA_IEI_INFO_STRING, SUA_IEI_ROUTE_CTX, SUA_IEI_SSN, SUA_MSGC_SNM, SUA_SNM_DUNA, SUA_VERSION, xua_common_hdr::version, XUA_HDR, xua_msg_add_data(), xua_msg_add_u32(), and xua_msg_alloc().
Referenced by sua_encode_dava(), and sua_tx_snm_available().
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References xua_msg::hdr, SUA_IEI_AFFECTED_PC, SUA_IEI_INFO_STRING, SUA_IEI_ROUTE_CTX, SUA_IEI_USER_CAUSE, SUA_MSGC_SNM, SUA_SNM_DUNA, SUA_VERSION, xua_common_hdr::version, XUA_HDR, xua_msg_add_data(), xua_msg_add_u32(), and xua_msg_alloc().
Referenced by sua_tx_dupu().
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References xua_msg::hdr, SUA_IEI_ERR_CODE, SUA_MGMT_ERR, SUA_MSGC_MGMT, SUA_VERSION, xua_common_hdr::version, XUA_HDR, xua_msg_add_u32(), and xua_msg_alloc().
Referenced by sua_gen_error_msg().
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References sua_gen_error(), SUA_IEI_DIAG_INFO, and xua_msg_add_data().
Referenced by sua_rx_msg().
int sua_parse_gt | ( | struct osmo_sccp_gt * | gt, |
const uint8_t * | data, | ||
unsigned int | datalen | ||
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Decode SUA Global Title according to RFC3868 Section 3.10.2.3.
[out] | gt | User-allocated structure for decoded output |
[in] | data | binary-encoded data |
[in] | datalen | length of data in octets |
References osmo_sccp_gt::digits, osmo_sccp_gt::gti, osmo_sccp_gt::nai, osmo_sccp_gt::npi, and osmo_sccp_gt::tt.
Referenced by sua_addr_parse_part().
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References xua_msg_event_map::event, osmo_ss7_asp::fi, SUA_ERR_UNSUPP_MSG_TYPE, sua_rx_snm(), and xua_msg_event_map().
Referenced by sua_rx_msg().
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References osmo_ss7_as::ctrg, xua_msg::hdr, osmo_ss7_asp::inst, xua_common_hdr::msg_class, xua_common_hdr::msg_type, osmo_ss7_instance::sccp, scrc_rx_mtp_xfer_ind_xua(), SS7_AS_CTR_RX_MSU_TOTAL, SUA_CL_CLDR, SUA_CL_CLDT, SUA_ERR_UNSUPP_MSG_TYPE, SUA_IEI_ROUTE_CTX, SUA_MSGC_CL, xua_find_as_for_asp(), and xua_msg_find_tag().
Referenced by sua_rx_msg().
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References osmo_ss7_as::ctrg, xua_msg::hdr, osmo_ss7_asp::inst, xua_common_hdr::msg_class, xua_common_hdr::msg_type, osmo_ss7_instance::sccp, scrc_rx_mtp_xfer_ind_xua(), SS7_AS_CTR_RX_MSU_TOTAL, SUA_CO_COAK, SUA_CO_CODA, SUA_CO_CODT, SUA_CO_COERR, SUA_CO_COIT, SUA_CO_CORE, SUA_CO_COREF, SUA_CO_RELCO, SUA_CO_RELRE, SUA_CO_RESCO, SUA_CO_RESRE, SUA_ERR_UNSUPP_MSG_TYPE, SUA_IEI_ROUTE_CTX, SUA_MSGC_CO, xua_find_as_for_asp(), and xua_msg_find_tag().
Referenced by sua_rx_msg().
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References xua_msg::hdr, xua_common_hdr::msg_type, SUA_ERR_UNSUPP_MSG_TYPE, SUA_MGMT_ERR, SUA_MGMT_NTFY, sua_rx_mgmt_err(), and sua_rx_mgmt_ntfy().
Referenced by sua_rx_msg().
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References LOGPASP, m3ua_err_names, SUA_IEI_ERR_CODE, xua_msg_dump(), and xua_msg_get_u32().
Referenced by sua_rx_mgmt().
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int sua_rx_msg | ( | struct osmo_ss7_asp * | asp, |
struct msgb * | msg | ||
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process SUA message received from socket
[in] | asp | Application Server Process receiving msg |
[in] | msg | received message buffer |
References osmo_ss7_asp::cfg, xua_common_hdr::data, osmo_mtp_transfer_param::dpc, xua_msg::hdr, osmo_ss7_asp::inst, LOGPASP, xua_common_hdr::msg_class, xua_msg::mtp, MTP_SI_SCCP, osmo_mtp_transfer_param::opc, OSMO_SS7_ASP_PROT_SUA, osmo_ss7_asp::proto, osmo_ss7_instance::sccp, osmo_mtp_transfer_param::sio, SUA_ERR_INVAL_STREAM_ID, SUA_ERR_INVALID_VERSION, SUA_ERR_MISSING_PARAM, SUA_ERR_PARAM_FIELD_ERR, SUA_ERR_UNSUPP_MSG_CLASS, sua_gen_error_msg(), SUA_MSGC_ASPSM, SUA_MSGC_ASPTM, SUA_MSGC_CL, SUA_MSGC_CO, SUA_MSGC_MGMT, SUA_MSGC_RKM, SUA_MSGC_SNM, sua_rx_asp(), sua_rx_cl(), sua_rx_co(), sua_rx_mgmt(), sua_rx_snm(), sua_tx_xua_asp(), SUA_VERSION, xua_common_hdr::version, xua_dialect_check_all_mand_ies(), xua_from_msg(), xua_hdr_dump(), and xua_msg_free().
Referenced by ss7_asp_xua_srv_conn_rx_cb(), and xua_cli_read_cb().
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References osmo_ss7_asp::cfg, osmo_ss7_asp::fi, LOGPASP, OSMO_SS7_ASP_QUIRK_SNM_INACTIVE, OSMO_SS7_ASP_ROLE_ASP, OSMO_SS7_ASP_ROLE_SG, osmo_ss7_asp::quirks, osmo_ss7_asp::role, SUA_ERR_UNEXPECTED_MSG, SUA_ERR_UNSUPP_MSG_CLASS, sua_rx_snm_asp(), sua_rx_snm_sg(), XUA_ASP_S_ACTIVE, and XUA_ASP_S_INACTIVE.
Referenced by sua_rx_asp(), and sua_rx_msg().
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References osmo_ss7_asp::cfg, xua_msg::hdr, LOGPASP, xua_common_hdr::msg_type, OSMO_SS7_ASP_QUIRK_DAUD_IN_ASP, osmo_ss7_asp::quirks, SUA_ERR_UNSUPP_MSG_TYPE, SUA_IEI_ROUTE_CTX, SUA_SNM_DAUD, SUA_SNM_DAVA, SUA_SNM_DRST, SUA_SNM_DUNA, SUA_SNM_DUPU, SUA_SNM_SCON, xua_find_as_for_asp(), xua_msg_find_tag(), xua_snm_rx_daud(), xua_snm_rx_dava(), xua_snm_rx_duna(), and xua_snm_rx_dupu().
Referenced by sua_rx_snm().
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References xua_msg::hdr, xua_common_hdr::msg_type, SUA_ERR_UNSUPP_MSG_TYPE, SUA_SNM_DAUD, and xua_snm_rx_daud().
Referenced by sua_rx_snm().
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References xua_msg::hdr, xua_common_hdr::msg_class, SUA_MSGC_CL, SUA_MSGC_CO, SUA_PPID, SUA_VERSION, and xua_to_msg().
Referenced by sua_tx_xua_as(), and sua_tx_xua_asp().
void sua_tx_dupu | ( | struct osmo_ss7_asp * | asp, |
const uint32_t * | rctx, | ||
unsigned int | num_rctx, | ||
uint32_t | dpc, | ||
uint16_t | user, | ||
uint16_t | cause, | ||
const char * | info_str | ||
) |
Transmit SSNM DUPU message indicating user unavailability.
[in] | asp | ASP through which to transmit message. Must be ACTIVE. |
[in] | rctx | array of Routing Contexts in network byte order. |
[in] | num_rctx | number of rctx |
[in] | dpc | affected point code |
[in] | user | the user (SI) that is unavailable |
[in] | cause | the cause of the user unavailability |
[in] | info_string | optional information string (can be NULL). |
References sua_encode_dupu(), and sua_tx_xua_asp().
Referenced by xua_tx_upu().
void sua_tx_snm_available | ( | struct osmo_ss7_asp * | asp, |
const uint32_t * | rctx, | ||
unsigned int | num_rctx, | ||
const uint32_t * | aff_pc, | ||
unsigned int | num_aff_pc, | ||
const uint32_t * | aff_ssn, | ||
const uint32_t * | smi, | ||
const char * | info_string, | ||
bool | available | ||
) |
Transmit SSNM DUNA/DAVA message indicating [un]availability of certain point code[s].
[in] | asp | ASP through whihc to transmit message. Must be ACTIVE. |
[in] | rctx | array of Routing Contexts in network byte order. |
[in] | num_rctx | number of rctx |
[in] | aff_pc | array of 'Affected Point Code' in network byte order. |
[in] | num_aff_pc | number of aff_pc |
[in] | aff_ssn | affected SSN (optional) |
[in] | smi | subsystem multiplicity indicator (optional) |
[in] | info_string | optional information strng (can be NULL). |
[in] | available | are aff_pc now available (true) or unavailable (false) |
References sua_encode_dava(), sua_encode_duna(), and sua_tx_xua_asp().
Referenced by sua_snm_ssn_available(), and xua_tx_snm_available().
void sua_tx_snm_congestion | ( | struct osmo_ss7_asp * | asp, |
const uint32_t * | rctx, | ||
unsigned int | num_rctx, | ||
const uint32_t * | aff_pc, | ||
unsigned int | num_aff_pc, | ||
const uint32_t * | ssn, | ||
const uint8_t | cong_level, | ||
const char * | info_string | ||
) |
Transmit SSNM SCON message indicating congestion.
[in] | asp | ASP through which to transmit message. Must be ACTIVE. |
[in] | rctx | array of Routing Contexts in network byte order. |
[in] | num_rctx | number of rctx |
[in] | aff_pc | array of 'Affected Point Code' in network byte order. |
[in] | num_aff_pc | number of aff_pc |
[in] | ssn | optional SSN (can be NULL) |
[in] | cong_level | optional congestion level (can be NULL) |
[in] | info_string | optional information string (can be NULL). |
References xua_msg::hdr, SUA_IEI_AFFECTED_PC, SUA_IEI_CONG_LEVEL, SUA_IEI_INFO_STRING, SUA_IEI_ROUTE_CTX, SUA_IEI_SSN, SUA_MSGC_SNM, SUA_SNM_SCON, SUA_VERSION, xua_common_hdr::version, XUA_HDR, xua_msg_add_data(), xua_msg_add_u32(), and xua_msg_alloc().
Referenced by xua_tx_scon().
int sua_tx_xua_as | ( | struct osmo_ss7_as * | as, |
struct xua_msg * | xua | ||
) |
Send a given xUA message via a given SUA Application Server.
[in] | as | Application Server through which to send xua |
[in] | xua | xUA message to be sent |
References osmo_ss7_as::cfg, osmo_ss7_routing_key::context, osmo_ss7_as::fi, OSMO_SS7_ASP_PROT_SUA, osmo_ss7_as::proto, osmo_ss7_as::routing_key, SUA_IEI_ROUTE_CTX, sua_to_msg(), XUA_AS_E_TRANSFER_REQ, and xua_msg_add_u32().
Referenced by gen_mtp_transfer_req_xua().
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References osmo_ss7_asp::cfg, OSMO_SS7_ASP_PROT_SUA, osmo_ss7_asp_send(), osmo_ss7_asp::proto, and sua_to_msg().
Referenced by sua_rx_msg(), sua_tx_dupu(), and sua_tx_snm_available().
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const struct xua_dialect xua_dialect_sua |
Referenced by osmo_sua_to_sccp(), sccp_find_user(), sccp_sclc_rx_from_scrc(), sccp_scoc_rx_from_scrc(), sccp_scoc_rx_inval_opc(), sccp_scoc_rx_inval_src_ref(), sccp_scoc_rx_scrc_rout_fail(), sccp_scoc_rx_unass_local_ref(), sccp_scrc_rx_sclc_msg(), sccp_scrc_rx_scoc_conn_msg(), scrc_rx_mtp_xfer_ind_xua(), and xua_opt_data_send_cache().