| /* (C) 2008-2009 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 <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <ctype.h> |
| |
| #include <openbsc/gsm_data.h> |
| #include <openbsc/talloc.h> |
| |
| void *tall_bsc_ctx; |
| |
| void set_ts_e1link(struct gsm_bts_trx_ts *ts, u_int8_t e1_nr, |
| u_int8_t e1_ts, u_int8_t e1_ts_ss) |
| { |
| ts->e1_link.e1_nr = e1_nr; |
| ts->e1_link.e1_ts = e1_ts; |
| ts->e1_link.e1_ts_ss = e1_ts_ss; |
| } |
| |
| static const char *pchan_names[] = { |
| [GSM_PCHAN_NONE] = "NONE", |
| [GSM_PCHAN_CCCH] = "CCCH", |
| [GSM_PCHAN_CCCH_SDCCH4] = "CCCH+SDCCH4", |
| [GSM_PCHAN_TCH_F] = "TCH/F", |
| [GSM_PCHAN_TCH_H] = "TCH/H", |
| [GSM_PCHAN_SDCCH8_SACCH8C] = "SDCCH8", |
| [GSM_PCHAN_UNKNOWN] = "UNKNOWN", |
| }; |
| |
| const char *gsm_pchan_name(enum gsm_phys_chan_config c) |
| { |
| if (c >= ARRAY_SIZE(pchan_names)) |
| return "INVALID"; |
| |
| return pchan_names[c]; |
| } |
| |
| enum gsm_phys_chan_config gsm_pchan_parse(const char *name) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(pchan_names); i++) { |
| if (!strcasecmp(name, pchan_names[i])) |
| return i; |
| } |
| |
| return -1; |
| } |
| |
| static const char *lchan_names[] = { |
| [GSM_LCHAN_NONE] = "NONE", |
| [GSM_LCHAN_SDCCH] = "SDCCH", |
| [GSM_LCHAN_TCH_F] = "TCH/F", |
| [GSM_LCHAN_TCH_H] = "TCH/H", |
| [GSM_LCHAN_UNKNOWN] = "UNKNOWN", |
| }; |
| |
| const char *gsm_lchan_name(enum gsm_chan_t c) |
| { |
| if (c >= ARRAY_SIZE(lchan_names)) |
| return "INVALID"; |
| |
| return lchan_names[c]; |
| } |
| |
| static const char *chreq_names[] = { |
| [GSM_CHREQ_REASON_EMERG] = "EMERGENCY", |
| [GSM_CHREQ_REASON_PAG] = "PAGING", |
| [GSM_CHREQ_REASON_CALL] = "CALL", |
| [GSM_CHREQ_REASON_LOCATION_UPD] = "LOCATION_UPDATE", |
| [GSM_CHREQ_REASON_OTHER] = "OTHER", |
| }; |
| |
| const char *gsm_chreq_name(enum gsm_chreq_reason_t c) |
| { |
| if (c >= ARRAY_SIZE(chreq_names)) |
| return "INVALID"; |
| |
| return chreq_names[c]; |
| } |
| |
| struct gsm_bts_trx *gsm_bts_trx_alloc(struct gsm_bts *bts) |
| { |
| struct gsm_bts_trx *trx = talloc(bts, struct gsm_bts_trx); |
| int k; |
| |
| if (!trx) |
| return NULL; |
| |
| memset(trx, 0, sizeof(*trx)); |
| trx->bts = bts; |
| trx->nr = bts->num_trx++; |
| |
| for (k = 0; k < TRX_NR_TS; k++) { |
| struct gsm_bts_trx_ts *ts = &trx->ts[k]; |
| int l; |
| |
| ts->trx = trx; |
| ts->nr = k; |
| ts->pchan = GSM_PCHAN_NONE; |
| |
| for (l = 0; l < TS_MAX_LCHAN; l++) { |
| struct gsm_lchan *lchan; |
| lchan = &ts->lchan[l]; |
| |
| lchan->ts = ts; |
| lchan->nr = l; |
| lchan->type = GSM_LCHAN_NONE; |
| } |
| } |
| |
| llist_add_tail(&trx->list, &bts->trx_list); |
| |
| return trx; |
| } |
| |
| struct gsm_bts *gsm_bts_alloc(struct gsm_network *net, enum gsm_bts_type type, |
| u_int8_t tsc, u_int8_t bsic) |
| { |
| struct gsm_bts *bts = talloc(net, struct gsm_bts); |
| |
| if (!bts) |
| return NULL; |
| |
| memset(bts, 0, sizeof(*bts)); |
| bts->network = net; |
| bts->nr = net->num_bts++; |
| bts->type = type; |
| bts->tsc = tsc; |
| bts->bsic = bsic; |
| bts->num_trx = 0; |
| INIT_LLIST_HEAD(&bts->trx_list); |
| bts->ms_max_power = 15; /* dBm */ |
| |
| /* create our primary TRX */ |
| bts->c0 = gsm_bts_trx_alloc(bts); |
| if (!bts->c0) { |
| talloc_free(bts); |
| return NULL; |
| } |
| bts->c0->ts[0].pchan = GSM_PCHAN_CCCH_SDCCH4; |
| |
| llist_add_tail(&bts->list, &net->bts_list); |
| |
| return bts; |
| } |
| |
| struct gsm_network *gsm_network_init(u_int16_t country_code, u_int16_t network_code, |
| int (*mncc_recv)(struct gsm_network *, int, void *)) |
| { |
| struct gsm_network *net; |
| |
| net = talloc(tall_bsc_ctx, struct gsm_network); |
| if (!net) |
| return NULL; |
| memset(net, 0, sizeof(*net)); |
| |
| net->country_code = country_code; |
| net->network_code = network_code; |
| net->num_bts = 0; |
| |
| INIT_LLIST_HEAD(&net->trans_list); |
| INIT_LLIST_HEAD(&net->upqueue); |
| INIT_LLIST_HEAD(&net->bts_list); |
| |
| net->mncc_recv = mncc_recv; |
| |
| return net; |
| } |
| |
| struct gsm_bts *gsm_bts_num(struct gsm_network *net, int num) |
| { |
| struct gsm_bts *bts; |
| |
| if (num >= net->num_bts) |
| return NULL; |
| |
| llist_for_each_entry(bts, &net->bts_list, list) { |
| if (bts->nr == num) |
| return bts; |
| } |
| |
| return NULL; |
| } |
| |
| struct gsm_bts_trx *gsm_bts_trx_num(struct gsm_bts *bts, int num) |
| { |
| struct gsm_bts_trx *trx; |
| |
| if (num >= bts->num_trx) |
| return NULL; |
| |
| llist_for_each_entry(trx, &bts->trx_list, list) { |
| if (trx->nr == num) |
| return trx; |
| } |
| |
| return NULL; |
| } |
| |
| static char ts2str[255]; |
| |
| char *gsm_ts_name(struct gsm_bts_trx_ts *ts) |
| { |
| snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d)", |
| ts->trx->bts->bts_nr, ts->trx->nr, ts->nr); |
| |
| return ts2str; |
| } |
| |
| static const char *bts_types[] = { |
| [GSM_BTS_TYPE_UNKNOWN] = "unknown", |
| [GSM_BTS_TYPE_BS11] = "bs11", |
| [GSM_BTS_TYPE_NANOBTS] = "nanobts", |
| }; |
| |
| enum gsm_bts_type parse_btstype(const char *arg) |
| { |
| int i; |
| for (i = 0; i < ARRAY_SIZE(bts_types); i++) { |
| if (!strcmp(arg, bts_types[i])) |
| return i; |
| } |
| return GSM_BTS_TYPE_BS11; /* Default: BS11 */ |
| } |
| |
| const char *btstype2str(enum gsm_bts_type type) |
| { |
| if (type > ARRAY_SIZE(bts_types)) |
| return "undefined"; |
| return bts_types[type]; |
| } |
| |
| /* Search for a BTS in the given Location Area; optionally start searching |
| * with start_bts (for continuing to search after the first result) */ |
| struct gsm_bts *gsm_bts_by_lac(struct gsm_network *net, unsigned int lac, |
| struct gsm_bts *start_bts) |
| { |
| int i; |
| struct gsm_bts *bts; |
| int skip = 0; |
| |
| if (start_bts) |
| skip = 1; |
| |
| for (i = 0; i < net->num_bts; i++) { |
| bts = gsm_bts_num(net, i); |
| |
| if (skip) { |
| if (start_bts == bts) |
| skip = 0; |
| continue; |
| } |
| |
| if (lac == GSM_LAC_RESERVED_ALL_BTS || bts->location_area_code == lac) |
| return bts; |
| } |
| return NULL; |
| } |
| |
| char *gsm_band_name(enum gsm_band band) |
| { |
| switch (band) { |
| case GSM_BAND_400: |
| return "GSM400"; |
| case GSM_BAND_850: |
| return "GSM850"; |
| case GSM_BAND_900: |
| return "GSM900"; |
| case GSM_BAND_1800: |
| return "DCS1800"; |
| case GSM_BAND_1900: |
| return "PCS1900"; |
| } |
| return "invalid"; |
| } |
| |
| enum gsm_band gsm_band_parse(const char* mhz) |
| { |
| while (*mhz && !isdigit(*mhz)) |
| mhz++; |
| |
| if (*mhz == '\0') |
| return -EINVAL; |
| |
| switch (atoi(mhz)) { |
| case 400: |
| return GSM_BAND_400; |
| case 850: |
| return GSM_BAND_850; |
| case 900: |
| return GSM_BAND_900; |
| case 1800: |
| return GSM_BAND_1800; |
| case 1900: |
| return GSM_BAND_1900; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static const char *gsm_auth_policy_names[] = { |
| [GSM_AUTH_POLICY_CLOSED] = "closed", |
| [GSM_AUTH_POLICY_ACCEPT_ALL] = "accept-all", |
| [GSM_AUTH_POLICY_TOKEN] = "token", |
| }; |
| |
| enum gsm_auth_policy gsm_auth_policy_parse(const char *arg) |
| { |
| int i; |
| for (i = 0; i < ARRAY_SIZE(gsm_auth_policy_names); i++) { |
| if (!strcmp(arg, gsm_auth_policy_names[i])) |
| return i; |
| } |
| return GSM_AUTH_POLICY_CLOSED; |
| } |
| |
| const char *gsm_auth_policy_name(enum gsm_auth_policy policy) |
| { |
| if (policy > ARRAY_SIZE(gsm_auth_policy_names)) |
| return "undefined"; |
| return gsm_auth_policy_names[policy]; |
| } |
| |