#include #include #include #include #include #include #include #include #include #include #include #include static void *tall_test; static struct e1inp_sign_link *oml_sign_link, *rsl_sign_link; #define DBTSTEST 0 struct log_info_cat bts_test_cat[] = { [DBTSTEST] = { .name = "DBTSTEST", .description = "BTS-mode test", .color = "\033[1;35m", .enabled = 1, .loglevel = LOGL_NOTICE, }, }; const struct log_info bts_test_log_info = { .filter_fn = NULL, .cat = bts_test_cat, .num_cat = ARRAY_SIZE(bts_test_cat), }; enum bts_state_machine { BTS_TEST_OML_SIGN_LINK_DOWN = 0, BTS_TEST_OML_SIGN_LINK_UP, BTS_TEST_OML_WAIT_SW_ACT_ACK, }; static struct osmo_fd bts_eventfd; static int eventfds[2]; static enum bts_state_machine bts_state = BTS_TEST_OML_SIGN_LINK_DOWN; static struct e1inp_sign_link * sign_link_up(void *unit, struct e1inp_line *line, enum e1inp_sign_type type) { struct e1inp_sign_link *sign_link = NULL; switch(type) { case E1INP_SIGN_OML: LOGP(DBTSTEST, LOGL_NOTICE, "OML link up request received.\n"); e1inp_ts_config_sign(e1inp_line_ipa_oml_ts(line), line); sign_link = oml_sign_link = e1inp_sign_link_create(e1inp_line_ipa_oml_ts(line), E1INP_SIGN_OML, NULL, 255, 0); if (!oml_sign_link) { LOGP(DBTSTEST, LOGL_ERROR, "cannot create OML sign link\n"); } if (oml_sign_link) { unsigned int event_type = 0; /* tell GSM 12.21 that we're ready via our eventfd. */ if (write(eventfds[1], &event_type, sizeof(unsigned int)) < 0) { LOGP(DBTSTEST, LOGL_ERROR, "cannot write " "event fd.\n"); } /* Now we can send OML messages to the BSC. */ bts_state = BTS_TEST_OML_SIGN_LINK_UP; } e1inp_ipa_bts_rsl_connect_n(line, "127.0.0.1", IPA_TCP_PORT_RSL, 0); break; case E1INP_SIGN_RSL: LOGP(DBTSTEST, LOGL_NOTICE, "RSL link up request received.\n"); e1inp_ts_config_sign(e1inp_line_ipa_rsl_ts(line, 0), line); sign_link = rsl_sign_link = e1inp_sign_link_create(e1inp_line_ipa_rsl_ts(line, 0), E1INP_SIGN_RSL, NULL, 0, 0); if (!rsl_sign_link) { LOGP(DBTSTEST, LOGL_ERROR, "cannot create RSL sign link\n"); } break; default: return NULL; } if (sign_link) LOGP(DBTSTEST, LOGL_NOTICE, "signal link has been set up.\n"); return sign_link; } static void sign_link_down(struct e1inp_line *line) { LOGP(DBTSTEST, LOGL_NOTICE, "signal link has been closed\n"); e1inp_sign_link_destroy(oml_sign_link); e1inp_sign_link_destroy(rsl_sign_link); } static int abis_nm_rcvmsg_fom(struct msgb *msg) { struct abis_om_fom_hdr *foh = msgb_l3(msg); uint8_t mt = foh->msg_type; int ret = 0; switch (mt) { case NM_MT_SW_ACT_REQ_ACK: /* SW activate request ACK from BSC. */ LOGP(DBTSTEST, LOGL_NOTICE, "Receive SW Act Req ACK\n"); break; default: LOGP(DBTSTEST, LOGL_ERROR, "unknown OML message\n"); break; } return ret; } static int abis_nm_rcvmsg(struct msgb *msg) { int ret = 0; struct abis_om_hdr *oh = msgb_l2(msg); msg->l3h = (unsigned char *)oh + sizeof(*oh); switch (oh->mdisc) { case ABIS_OM_MDISC_FOM: ret = abis_nm_rcvmsg_fom(msg); break; default: LOGP(DBTSTEST, LOGL_ERROR, "unknown OML message\n"); break; } return ret; } static int sign_link(struct msgb *msg) { int ret = 0; struct e1inp_sign_link *link = msg->dst; switch(link->type) { case E1INP_SIGN_OML: LOGP(DBTSTEST, LOGL_NOTICE, "OML message received.\n"); ret = abis_nm_rcvmsg(msg); break; case E1INP_SIGN_RSL: LOGP(DBTSTEST, LOGL_NOTICE, "RSL message received.\n"); break; default: LOGP(DBTSTEST, LOGL_ERROR, "Unknown signalling message.\n"); break; } msgb_free(msg); return ret; } static void fill_om_hdr(struct abis_om_hdr *oh, uint8_t len) { oh->mdisc = ABIS_OM_MDISC_FOM; oh->placement = ABIS_OM_PLACEMENT_ONLY; oh->sequence = 0; oh->length = len; } static void fill_om_fom_hdr(struct abis_om_hdr *oh, uint8_t len, uint8_t msg_type, uint8_t obj_class, uint8_t bts_nr, uint8_t trx_nr, uint8_t ts_nr) { struct abis_om_fom_hdr *foh = (struct abis_om_fom_hdr *) oh->data; fill_om_hdr(oh, len+sizeof(*foh)); foh->msg_type = msg_type; foh->obj_class = obj_class; foh->obj_inst.bts_nr = bts_nr; foh->obj_inst.trx_nr = trx_nr; foh->obj_inst.ts_nr = ts_nr; } #define OM_ALLOC_SIZE 1024 #define OM_HEADROOM_SIZE 128 static struct msgb *nm_msgb_alloc(void) { return msgb_alloc_headroom(OM_ALLOC_SIZE, OM_HEADROOM_SIZE, "BTS/test"); } static int abis_nm_sw_act_req(struct e1inp_sign_link *sign_link, uint8_t obj_class, uint8_t i1, uint8_t i2, uint8_t i3, uint8_t *attr, int att_len) { struct abis_om_hdr *oh; struct msgb *msg = nm_msgb_alloc(); uint8_t msgtype = NM_MT_SW_ACT_REQ; oh = (struct abis_om_hdr *) msgb_put(msg, ABIS_OM_FOM_HDR_SIZE); fill_om_fom_hdr(oh, att_len, msgtype, obj_class, i1, i2, i3); if (attr) { uint8_t *ptr = msgb_put(msg, att_len); memcpy(ptr, attr, att_len); } msg->dst = sign_link; return abis_sendmsg(msg); } static int test_bts_gsm_12_21_cb(struct osmo_fd *ofd, unsigned int what) { int ret, event_type; struct ipaccess_unit *unit = ofd->data; if (read(eventfds[0], &event_type, sizeof(unsigned int)) < 0) { LOGP(DBTSTEST, LOGL_ERROR, "error receiving event\n"); return 0; } switch(bts_state) { case BTS_TEST_OML_SIGN_LINK_DOWN: /* Do nothing until OML link becomes ready. */ break; case BTS_TEST_OML_SIGN_LINK_UP: /* OML link is up, send SW ACT REQ. */ ret = abis_nm_sw_act_req(oml_sign_link, 0, unit->bts_id, unit->trx_id, 0, NULL, 0); if (ret < 0) { LOGP(DBTSTEST, LOGL_ERROR, "cannot send SW ACT REQ\n"); break; } bts_state = BTS_TEST_OML_WAIT_SW_ACT_ACK; break; case BTS_TEST_OML_WAIT_SW_ACT_ACK: /* ... things should continue after this. */ break; } return 0; } static struct e1inp_line *line; static void sighandler(int foo) { e1inp_line_put2(line, "ctor"); exit(EXIT_SUCCESS); } int main(void) { struct ipaccess_unit bts_dev_info = { .site_id = 1801, .bts_id = 0, .trx_id = 0, .unit_name = "testBTS", .equipvers = "0.1", .swversion = "0.1", .mac_addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, .location1 = "testBTS", .location2 = "testBTS", .serno = "", }; tall_test = talloc_named_const(NULL, 1, "e1inp_test"); libosmo_abis_init(tall_test); msgb_talloc_ctx_init(tall_test, 0); osmo_init_logging2(tall_test, &bts_test_log_info); struct e1inp_line_ops ops = { .cfg = { .ipa = { .role = E1INP_LINE_R_BTS, .addr = "127.0.0.1", .dev = &bts_dev_info, }, }, .sign_link_up = sign_link_up, .sign_link_down = sign_link_down, .sign_link = sign_link, }; #define LINENR 0 if (signal(SIGINT, sighandler) == SIG_ERR || signal(SIGTERM, sighandler) == SIG_ERR) { perror("Cannot set sighandler"); exit(EXIT_FAILURE); } line = e1inp_line_create(LINENR, "ipa"); if (line == NULL) { LOGP(DBTSTEST, LOGL_ERROR, "problem enabling E1 line\n"); exit(EXIT_FAILURE); } e1inp_line_bind_ops(line, &ops); if (e1inp_line_update(line) < 0) { LOGP(DBTSTEST, LOGL_ERROR, "problem enabling E1 line\n"); exit(EXIT_FAILURE); } LOGP(DBTSTEST, LOGL_NOTICE, "entering main loop\n"); if (pipe(eventfds) < 0) { LOGP(DBTSTEST, LOGL_ERROR, "cannot create pipe fds\n"); exit(EXIT_FAILURE); } osmo_fd_setup(&bts_eventfd, eventfds[0], OSMO_FD_READ, test_bts_gsm_12_21_cb, &bts_dev_info, 0); if (osmo_fd_register(&bts_eventfd) < 0) { LOGP(DBTSTEST, LOGL_ERROR, "could not register event fd\n"); exit(EXIT_FAILURE); } while (1) { osmo_select_main(0); } return 0; }