diff options
Diffstat (limited to 'openbsc/src/ipaccess/network_listen.c')
| -rw-r--r-- | openbsc/src/ipaccess/network_listen.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/openbsc/src/ipaccess/network_listen.c b/openbsc/src/ipaccess/network_listen.c new file mode 100644 index 000000000..f64f44ec1 --- /dev/null +++ b/openbsc/src/ipaccess/network_listen.c @@ -0,0 +1,172 @@ +/* ip.access nanoBTS network listen mode */ + +/* (C) 2009-2010 by Harald Welte <laforge@gnumonks.org> + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <stdint.h> + +#include <osmocore/talloc.h> +#include <osmocore/timer.h> + +#include <openbsc/gsm_data.h> +#include <openbsc/abis_nm.h> +#include <openbsc/signal.h> +#include <openbsc/debug.h> + +enum ipac_test_state { + IPAC_TEST_S_IDLE, + IPAC_TEST_S_RQD, + IPAC_TEST_S_EXEC, + IPAC_TEST_S_PARTIAL, +}; + +int ipac_nwl_test_start(struct gsm_bts_trx *trx, uint8_t testnr) +{ + const uint8_t phys_config[] = { 0x02, 0x0a, 0x00, 0x01, 0x02 }; + + if (trx->ipaccess.test_state != IPAC_TEST_S_IDLE) { + fprintf(stderr, "Cannot start test in state %u\n", trx->ipaccess.test_state); + return -EINVAL; + } + + abis_nm_perform_test(trx->bts, 2, 0, trx->nr, 0xff, testnr, 1, + phys_config, sizeof(phys_config)); + + /* FIXME: start safety timer until when test is supposed to complete */ + + return 0; +} + +struct ipacc_ferr_elem { + int16_t freq_err; + uint8_t freq_qual; + uint8_t arfcn; +} __attribute__((packed)); + +struct ipacc_cusage_elem { + uint16_t arfcn:10, + rxlev:6; +} __attribute__ ((packed)); + +static int test_rep(void *_msg) +{ + struct msgb *msg = _msg; + struct abis_om_fom_hdr *foh = msgb_l3(msg); + uint16_t test_rep_len, ferr_list_len; + struct ipacc_ferr_elem *ife; + struct ipac_bcch_info binfo; + int i, rc; + + DEBUGP(DNM, "TEST REPORT: "); + + if (foh->data[0] != NM_ATT_TEST_NO || + foh->data[2] != NM_ATT_TEST_REPORT) + return -EINVAL; + + DEBUGPC(DNM, "test_no=0x%02x ", foh->data[1]); + /* data[2] == NM_ATT_TEST_REPORT */ + /* data[3..4]: test_rep_len */ + test_rep_len = ntohs(*(uint16_t *) &foh->data[3]); + /* data[5]: ip.access test result */ + DEBUGPC(DNM, "tst_res=%s\n", ipacc_testres_name(foh->data[5])); + + /* data[6]: ip.access nested IE. 3 == freq_err_list */ + switch (foh->data[6]) { + case NM_IPAC_EIE_FREQ_ERR_LIST: + /* data[7..8]: length of ferr_list */ + ferr_list_len = ntohs(*(uint16_t *) &foh->data[7]); + + /* data[9...]: frequency error list elements */ + for (i = 0; i < ferr_list_len; i+= sizeof(*ife)) { + ife = (struct ipacc_ferr_elem *) (foh->data + 9 + i); + DEBUGP(DNM, "==> ARFCN %4u, Frequency Error %6hd\n", + ife->arfcn, ntohs(ife->freq_err)); + } + break; + case NM_IPAC_EIE_CHAN_USE_LIST: + /* data[7..8]: length of ferr_list */ + ferr_list_len = ntohs(*(uint16_t *) &foh->data[7]); + + /* data[9...]: channel usage list elements */ + for (i = 0; i < ferr_list_len; i+= 2) { + uint16_t *cu_ptr = (uint16_t *)(foh->data + 9 + i); + uint16_t cu = ntohs(*cu_ptr); + DEBUGP(DNM, "==> ARFCN %4u, RxLev %2u\n", + cu & 0x3ff, cu >> 10); + } + break; + case NM_IPAC_EIE_BCCH_INFO_TYPE: + break; + case NM_IPAC_EIE_BCCH_INFO: + rc = ipac_parse_bcch_info(&binfo, foh->data+6); + if (rc < 0) { + DEBUGP(DNM, "BCCH Info parsing failed\n"); + break; + } + DEBUGP(DNM, "==> ARFCN %u, RxLev %2u, RxQual %2u: %3d-%d, LAC %d CI %d\n", + binfo.arfcn, binfo.rx_lev, binfo.rx_qual, + binfo.cgi.mcc, binfo.cgi.mnc, + binfo.cgi.lac, binfo.cgi.ci); + break; + default: + break; + } + + switch (foh->data[5]) { + case NM_IPACC_TESTRES_SUCCESS: + case NM_IPACC_TESTRES_STOPPED: + case NM_IPACC_TESTRES_TIMEOUT: + case NM_IPACC_TESTRES_NO_CHANS: + msg->trx->ipaccess.test_state = IPAC_TEST_S_IDLE; + /* Send signal to notify higher layers of test completion */ + dispatch_signal(SS_IPAC_NWL, S_IPAC_NWL_COMPLETE, msg->trx); + break; + case NM_IPACC_TESTRES_PARTIAL: + msg->trx->ipaccess.test_state = IPAC_TEST_S_PARTIAL; + break; + } + + return 0; +} + +static int nwl_sig_cb(unsigned int subsys, unsigned int signal, + void *handler_data, void *signal_data) +{ + struct ipacc_ack_signal_data *ipacc_data; + + switch (signal) { + case S_NM_TEST_REP: + return test_rep(signal_data); + default: + break; + } + + return 0; +} + +void ipac_nwl_init(void) +{ + register_signal_handler(SS_NM, nwl_sig_cb, NULL); +} |