#include #include #include #include #include #include #include #include static void *tall_test; static struct e1inp_sign_link *oml_sign_link, *rsl_sign_link; #define DBSCTEST 0 struct log_info_cat bsc_test_cat[] = { [DBSCTEST] = { .name = "DBSCTEST", .description = "BSC-mode test", .color = "\033[1;35m", .enabled = 1, .loglevel = LOGL_NOTICE, }, }; static struct e1inp_sign_link * sign_link_up(void *dev, struct e1inp_line *line, enum e1inp_sign_type type) { struct e1inp_sign_link *sign_link = NULL; struct e1inp_line *oml_line; switch(type) { case E1INP_SIGN_OML: LOGP(DBSCTEST, 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); break; case E1INP_SIGN_RSL: if (!oml_sign_link) { LOGP(DBSCTEST, LOGL_ERROR, "OML link not yet set, " "giving up\n"); return NULL; } LOGP(DBSCTEST, LOGL_NOTICE, "RSL link up request received.\n"); /* We have to use the same line that the OML link. */ oml_line = oml_sign_link->ts->line; e1inp_ts_config_sign(e1inp_line_ipa_rsl_ts(oml_line, 0), oml_line); sign_link = rsl_sign_link = e1inp_sign_link_create(e1inp_line_ipa_rsl_ts(oml_line, 0), E1INP_SIGN_RSL, NULL, 0, 0); break; default: break; } if (sign_link) LOGP(DBSCTEST, LOGL_NOTICE, "signal link has been set up.\n"); return sign_link; } static void sign_link_down(struct e1inp_line *line) { LOGP(DBSCTEST, LOGL_NOTICE, "signal link has been closed\n"); if (oml_sign_link) { e1inp_sign_link_destroy(oml_sign_link); oml_sign_link = NULL; } if (rsl_sign_link) { e1inp_sign_link_destroy(rsl_sign_link); rsl_sign_link = NULL; } } 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, "OML"); } static int abis_nm_sw_act_req_ack(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_ACK; 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 abis_nm_rx_sw_act_req(struct msgb *msg) { struct abis_om_hdr *oh = msgb_l2(msg); struct abis_om_fom_hdr *foh = msgb_l3(msg); int ret; ret = abis_nm_sw_act_req_ack(msg->dst, foh->obj_class, foh->obj_inst.bts_nr, foh->obj_inst.trx_nr, foh->obj_inst.ts_nr, foh->data, oh->length-sizeof(*foh)); return ret; } 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: /* Software activate request from BTS. */ ret = abis_nm_rx_sw_act_req(msg); break; default: 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(DBSCTEST, 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_RSL: LOGP(DBSCTEST, LOGL_NOTICE, "RSL message received.\n"); break; case E1INP_SIGN_OML: LOGP(DBSCTEST, LOGL_NOTICE, "OML message received.\n"); ret = abis_nm_rcvmsg(msg); break; default: LOGP(DBSCTEST, LOGL_ERROR, "Unknown signallin message.\n"); break; } msgb_free(msg); return ret; } const struct log_info bsc_test_log_info = { .filter_fn = NULL, .cat = bsc_test_cat, .num_cat = ARRAY_SIZE(bsc_test_cat), }; static struct e1inp_line *line; static void sighandler(int foo) { e1inp_line_put2(line, "ctor"); exit(EXIT_SUCCESS); } int main(void) { 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, &bsc_test_log_info); struct e1inp_line_ops ops = { .cfg = { .ipa = { .addr = "0.0.0.0", .role = E1INP_LINE_R_BSC, }, }, .sign_link_up = sign_link_up, .sign_link_down = sign_link_down, .sign_link = sign_link, }; if (signal(SIGINT, sighandler) == SIG_ERR || signal(SIGTERM, sighandler) == SIG_ERR) { perror("Cannot set sighandler"); exit(EXIT_FAILURE); } #define LINENR 0 line = e1inp_line_create(LINENR, "ipa"); if (line == NULL) { LOGP(DBSCTEST, LOGL_ERROR, "problem creating E1 line\n"); exit(EXIT_FAILURE); } e1inp_line_bind_ops(line, &ops); /* * Depending if this is a real or virtual E1 lines: * - real (ISDN): create signal link for OML and RSL before line up. * - vitual (INET): we create it in signal_link_up(...) callback. * * The signal link is created via e1inp_sign_link_create(...) * * See e1_reconfig_trx and e1_reconfig_bts in libbsc/e1_config.c, * it explains how this is done with ISDN. */ if (e1inp_line_update(line) < 0) { LOGP(DBSCTEST, LOGL_ERROR, "problem creating E1 line\n"); exit(EXIT_FAILURE); } LOGP(DBSCTEST, LOGL_NOTICE, "entering main loop\n"); while (1) { osmo_select_main(0); } return 0; }