#include #include #include #include #include #include #include #include #include "internal.h" unsigned int conn_id =1; /* a simple SCCP User which refuses all connections and discards all * unitdata */ static int refuser_prim_cb(struct osmo_prim_hdr *oph, void *_scu) { struct osmo_sccp_user *scu = _scu; struct osmo_scu_prim *scu_prim = (struct osmo_scu_prim *) oph; switch (OSMO_PRIM_HDR(&scu_prim->oph)) { case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_INDICATION): printf("%s: refusing N-CONNECT.ind (local_ref=%u)\n", __func__, scu_prim->u.connect.conn_id); osmo_sccp_tx_disconn(scu, scu_prim->u.connect.conn_id, &scu_prim->u.connect.called_addr, 23); break; default: printf("%s: Unknown primitive %u:%u\n", __func__, oph->primitive, oph->operation); break; } msgb_free(oph->msg); return 0; } /* a simple SCCP User which accepts all connections and echos back all * DATA + UNITDATA */ static int echo_prim_cb(struct osmo_prim_hdr *oph, void *_scu) { struct osmo_sccp_user *scu = _scu; struct osmo_scu_prim *scu_prim = (struct osmo_scu_prim *) oph; const uint8_t *data = msgb_l2(oph->msg); unsigned int data_len = msgb_l2len(oph->msg); switch (OSMO_PRIM_HDR(&scu_prim->oph)) { case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_INDICATION): printf("%s: Accepting N-CONNECT.ind (local_ref=%u)\n", __func__, scu_prim->u.connect.conn_id); osmo_sccp_tx_conn_resp(scu, scu_prim->u.connect.conn_id, &scu_prim->u.connect.called_addr, data, data_len); break; case OSMO_PRIM(OSMO_SCU_PRIM_N_DATA, PRIM_OP_INDICATION): printf("%s: Echoing N-DATA.ind (local_ref=%u)\n", __func__, scu_prim->u.data.conn_id); osmo_sccp_tx_data(scu, scu_prim->u.data.conn_id, data, data_len); break; case OSMO_PRIM(OSMO_SCU_PRIM_N_UNITDATA, PRIM_OP_INDICATION): printf("%s: Echoing N-UNITDATA.ind\n", __func__); osmo_sccp_tx_unitdata(scu, &scu_prim->u.unitdata.called_addr, &scu_prim->u.unitdata.calling_addr, data, data_len); break; default: printf("%s: Unknown primitive %u:%u\n", __func__, oph->primitive, oph->operation); break; } msgb_free(oph->msg); return 0; } /* a simple SCCP User which receives UNITDATA messages and connects back * to whoever sents UNITDATA and then echo's back all DATA */ static int callback_prim_cb(struct osmo_prim_hdr *oph, void *_scu) { struct osmo_sccp_user *scu = _scu; struct osmo_scu_prim *scu_prim = (struct osmo_scu_prim *) oph; const uint8_t *data = msgb_l2(oph->msg); unsigned int data_len = msgb_l2len(oph->msg); switch (OSMO_PRIM_HDR(&scu_prim->oph)) { case OSMO_PRIM(OSMO_SCU_PRIM_N_UNITDATA, PRIM_OP_INDICATION): printf("%s: N-UNITDATA.ind: Connectiong back to sender\n", __func__); osmo_sccp_tx_conn_req(scu, conn_id++, &scu_prim->u.unitdata.called_addr, &scu_prim->u.unitdata.calling_addr, data, data_len); break; case OSMO_PRIM(OSMO_SCU_PRIM_N_DATA, PRIM_OP_INDICATION): printf("%s: Echoing N-DATA.ind (local_ref=%u)\n", __func__, scu_prim->u.data.conn_id); osmo_sccp_tx_data(scu, scu_prim->u.data.conn_id, data, data_len); break; default: printf("%s: Unknown primitive %u:%u\n", __func__, oph->primitive, oph->operation); break; } msgb_free(oph->msg); return 0; } int sccp_test_server_init(struct osmo_sccp_instance *sccp) { osmo_sccp_user_bind(sccp, "refuser", &refuser_prim_cb, SSN_TEST_REFUSE); osmo_sccp_user_bind(sccp, "echo", &echo_prim_cb, SSN_TEST_ECHO); osmo_sccp_user_bind(sccp, "callback", &callback_prim_cb, SSN_TEST_CALLBACK); return 0; }