ss7_as_loadshare_tcap.h

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#pragma once
 
#include <complex.h>
#include <stdint.h>
 
#include <osmocom/core/msgb.h>
#include <osmocom/sigtran/osmo_ss7.h>
 
struct xua_msg;
 
#define TCAP_PC_WILDCARD 0xffffffff
#define TCAP_SSN_WILDCARD 0
 
#ifdef WITH_TCAP_LOADSHARING
 
struct tcap_range {
        struct hlist_node list;
        struct osmo_ss7_asp *asp;
        uint32_t tid_start;
        uint32_t tid_end;
        uint32_t pc;
        uint8_t ssn;
};
 
/* IPA entry point */
int ipa_rx_msg_osmo_ext_tcap_routing(struct osmo_ss7_asp *asp, struct msgb *msg);
 
bool tcap_range_matches(const struct tcap_range *tcrng, uint32_t tid);
bool tcap_range_overlaps(const struct tcap_range *a, uint32_t tid_min, uint32_t tid_max);
 
struct tcap_range *tcap_range_alloc(struct osmo_ss7_as *as, struct osmo_ss7_asp *asp,
                                    uint32_t tid_start, uint32_t tid_end, uint32_t pc, uint8_t ssn);
void tcap_range_free(struct tcap_range *tcrng);
 
/* Traffic ASP -> AS -> STP (Rx path) From TCAP Routing AS, only used for connection tracking */
int ss7_asp_tcap_rx_sccp(struct osmo_ss7_as *as, struct osmo_ss7_asp *asp, uint32_t opc, uint32_t dpc, struct msgb *sccp_msg);
 
/* Traffic STP -> AS -> ASP (Tx path) Loadshare towards the TCAP routing AS */
int ss7_as_select_asp_loadshare_tcap(struct osmo_ss7_asp **asp, struct osmo_ss7_as *as, struct xua_msg *xua);
 
/* When the ASP got removed */
void tcap_asp_down(struct osmo_ss7_asp *asp);
 
void tcap_enable(struct osmo_ss7_as *as);
void tcap_disable(struct osmo_ss7_as *as);
 
#else
 
static inline int ss7_as_select_asp_loadshare_tcap(
        struct osmo_ss7_asp **asp, struct osmo_ss7_as *as, struct xua_msg *xua) { return -EPROTONOSUPPORT; };
static inline int ss7_asp_tcap_rx_sccp(
        struct osmo_ss7_as *as, struct osmo_ss7_asp *asp,
        uint32_t opc, uint32_t dpc,
        struct msgb *sccp_msg) { return -EINVAL; };
static inline void tcap_asp_down(struct osmo_ss7_asp *asp) {};
static inline void tcap_enable(struct osmo_ss7_as *as) {};
static inline void tcap_disable(struct osmo_ss7_as *as) {};
 
#endif /* WITH_TCAP_LOADSHARING */