diff options
author | Harald Welte <laforge@gnumonks.org> | 2015-09-22 16:41:54 +0200 |
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committer | Harald Welte <laforge@gnumonks.org> | 2015-09-22 16:41:54 +0200 |
commit | f1fb0fa3af174c605f60458388bba61ef4f40fa8 (patch) | |
tree | 006e46f78dee0ac14ffd321e0bfae344d8160096 /src/osmo-bts-trx/main.c | |
parent | 329085a8ff2c1162a32eb617068fa5614efcde06 (diff) | |
parent | caa648d92e48a05e676e87b48c21cb0b151c9b4e (diff) |
Merge branch '201509-trx-rebase'0.4.0
Diffstat (limited to 'src/osmo-bts-trx/main.c')
-rw-r--r-- | src/osmo-bts-trx/main.c | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/src/osmo-bts-trx/main.c b/src/osmo-bts-trx/main.c new file mode 100644 index 00000000..6f2dd4bc --- /dev/null +++ b/src/osmo-bts-trx/main.c @@ -0,0 +1,406 @@ +/* Main program for OsmoBTS-TRX */ + +/* (C) 2011 by Harald Welte <laforge@gnumonks.org> + * (C) 2013 by Andreas Eversberg <jolly@eversberg.eu> + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation; either version 3 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 Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#include <stdint.h> +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include <getopt.h> +#include <limits.h> +#include <sched.h> +#include <sys/signal.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/ioctl.h> + +#include <netinet/in.h> +#include <arpa/inet.h> +#include <net/if.h> + +#include <osmocom/core/talloc.h> +#include <osmocom/core/application.h> +#include <osmocom/vty/telnet_interface.h> +#include <osmocom/vty/logging.h> +#include <osmocom/core/gsmtap.h> +#include <osmocom/core/gsmtap_util.h> +#include <osmocom/core/bits.h> + +#include <osmo-bts/gsm_data.h> +#include <osmo-bts/logging.h> +#include <osmo-bts/abis.h> +#include <osmo-bts/bts.h> +#include <osmo-bts/vty.h> +#include <osmo-bts/bts_model.h> +#include <osmo-bts/pcu_if.h> +#include <osmo-bts/l1sap.h> + +#include "l1_if.h" +#include "trx_if.h" +#include "scheduler.h" + +const int pcu_direct = 0; + +int quit = 0; +static const char *config_file = "osmo-bts.cfg"; +static int daemonize = 0; +static char *gsmtap_ip = 0; +static int rt_prio = -1; +static int trx_num = 1; +char *software_version = "0.0"; +uint8_t abis_mac[6] = { 0, 1, 2, 3, 4, 5 }; +char *bsc_host = "localhost"; +char *bts_id = "1801/0"; + +// FIXME this is a hack +static void get_mac(void) +{ + struct if_nameindex *ifn = if_nameindex(); + struct ifreq ifr; + int sock; + int ret; + + sock = socket(AF_INET, SOCK_STREAM, 0); + if (sock < 0) + return; + + memset(&ifr, 0, sizeof(ifr)); + if (!ifn) + return; + while (ifn->if_name) { + strncpy(ifr.ifr_name, ifn->if_name, sizeof(ifr.ifr_name)-1); + ret = ioctl(sock, SIOCGIFHWADDR, &ifr); + if (ret == 0 && !!memcmp(ifr.ifr_hwaddr.sa_data, + "\0\0\0\0\0\0", 6)) { + memcpy(abis_mac, ifr.ifr_hwaddr.sa_data, 6); + printf("Using MAC address of %s: " + "'%02x:%02x:%02x:%02x:%02x:%02x'\n", + ifn->if_name, + abis_mac[0], abis_mac[1], abis_mac[2], + abis_mac[3], abis_mac[4], abis_mac[5]); + break; + } + ifn++; + } +// if_freenameindex(ifn); +} + +int bts_model_init(struct gsm_bts *bts) +{ + void *l1h; + struct gsm_bts_trx *trx; + + llist_for_each_entry(trx, &bts->trx_list, list) { + l1h = l1if_open(trx); + if (!l1h) { + LOGP(DL1C, LOGL_FATAL, "Cannot open L1 Interface\n"); + goto error; + } + + trx->role_bts.l1h = l1h; + trx->nominal_power = 23; + + l1if_reset(l1h); + } + + bts_model_vty_init(bts); + + return 0; + +error: + llist_for_each_entry(trx, &bts->trx_list, list) { + l1h = trx->role_bts.l1h; + if (l1h) + l1if_close(l1h); + } + + return -EIO; +} + +/* dummy, since no direct dsp support */ +uint32_t trx_get_hlayer1(struct gsm_bts_trx *trx) +{ + return 0; +} + +static void print_help() +{ + printf( "Some useful options:\n" + " -h --help this text\n" + " -d --debug MASK Enable debugging (e.g. -d DRSL:DOML:DLAPDM)\n" + " -D --daemonize For the process into a background daemon\n" + " -c --config-file Specify the filename of the config file\n" + " -s --disable-color Don't use colors in stderr log output\n" + " -T --timestamp Prefix every log line with a timestamp\n" + " -V --version Print version information and exit\n" + " -e --log-level Set a global log-level\n" + " -t --trx-num Set number of TRX (default=%d)\n" + " -i --gsmtap-ip The destination IP used for GSMTAP.\n" + " -r --realtime PRIO Set realtime scheduler with given prio\n" + " -I --local-trx-ip Local IP for transceiver to connect (default=%s)\n" + ,trx_num, transceiver_ip); +} + +/* FIXME: finally get some option parsing code into libosmocore */ +static void handle_options(int argc, char **argv) +{ + while (1) { + int option_idx = 0, c; + static const struct option long_options[] = { + /* FIXME: all those are generic Osmocom app options */ + { "help", 0, 0, 'h' }, + { "debug", 1, 0, 'd' }, + { "daemonize", 0, 0, 'D' }, + { "config-file", 1, 0, 'c' }, + { "disable-color", 0, 0, 's' }, + { "timestamp", 0, 0, 'T' }, + { "version", 0, 0, 'V' }, + { "log-level", 1, 0, 'e' }, + { "trx-num", 1, 0, 't' }, + { "gsmtap-ip", 1, 0, 'i' }, + { "realtime", 1, 0, 'r' }, + { "local-trx-ip", 1, 0, 'I' }, + { 0, 0, 0, 0 } + }; + + c = getopt_long(argc, argv, "hc:d:Dc:sTVe:t:i:r:I:", + long_options, &option_idx); + if (c == -1) + break; + + switch (c) { + case 'h': + print_help(); + exit(0); + break; + case 's': + log_set_use_color(osmo_stderr_target, 0); + break; + case 'd': + log_parse_category_mask(osmo_stderr_target, optarg); + break; + case 'D': + daemonize = 1; + break; + case 'c': + config_file = strdup(optarg); + break; + case 'T': + log_set_print_timestamp(osmo_stderr_target, 1); + break; + case 'V': + print_version(1); + exit(0); + break; + case 'e': + log_set_log_level(osmo_stderr_target, atoi(optarg)); + break; + case 't': + trx_num = atoi(optarg); + if (trx_num < 1) + trx_num = 1; + break; + case 'i': + gsmtap_ip = optarg; + break; + case 'r': + rt_prio = atoi(optarg); + break; + case 'I': + transceiver_ip = strdup(optarg); + break; + default: + break; + } + } +} + +static struct gsm_bts *bts; + +static void signal_handler(int signal) +{ + fprintf(stderr, "signal %u received\n", signal); + + switch (signal) { + case SIGINT: + //osmo_signal_dispatch(SS_GLOBAL, S_GLOBAL_SHUTDOWN, NULL); + if (!quit) + bts_shutdown(bts, "SIGINT"); + quit++; + break; + case SIGABRT: + case SIGUSR1: + case SIGUSR2: + talloc_report_full(tall_bts_ctx, stderr); + break; + default: + break; + } +} + +static int write_pid_file(char *procname) +{ + FILE *outf; + char tmp[PATH_MAX+1]; + + snprintf(tmp, sizeof(tmp)-1, "/var/run/%s.pid", procname); + tmp[PATH_MAX-1] = '\0'; + + outf = fopen(tmp, "w"); + if (!outf) + return -1; + + fprintf(outf, "%d\n", getpid()); + + fclose(outf); + + return 0; +} + +int main(int argc, char **argv) +{ + struct gsm_bts_role_bts *btsb; + struct gsm_bts_trx *trx; + struct e1inp_line *line; + void *tall_msgb_ctx; + int rc, i; + + printf("((*))\n |\n / \\ OsmoBTS\n"); + + get_mac(); + + tall_bts_ctx = talloc_named_const(NULL, 1, "OsmoBTS context"); + tall_msgb_ctx = talloc_named_const(tall_bts_ctx, 1, "msgb"); + msgb_set_talloc_ctx(tall_msgb_ctx); + + bts_log_init(NULL); + + handle_options(argc, argv); + + bts = gsm_bts_alloc(tall_bts_ctx); + if (!bts) { + fprintf(stderr, "Failed to create BTS structure\n"); + exit(1); + } + for (i = 1; i < trx_num; i++) { + trx = gsm_bts_trx_alloc(bts); + if (!trx) { + fprintf(stderr, "Failed to TRX structure\n"); + exit(1); + } + } + + vty_init(&bts_vty_info); + e1inp_vty_init(); + bts_vty_init(bts, &bts_log_info); + + if (bts_init(bts) < 0) { + fprintf(stderr, "unable to to open bts\n"); + exit(1); + } + btsb = bts_role_bts(bts); + btsb->support.ciphers = CIPHER_A5(1) | CIPHER_A5(2); + + if (gsmtap_ip) { + gsmtap = gsmtap_source_init(gsmtap_ip, GSMTAP_UDP_PORT, 1); + if (!gsmtap) { + fprintf(stderr, "Failed during gsmtap_init()\n"); + exit(1); + } + gsmtap_source_add_sink(gsmtap); + } + + abis_init(bts); + + rc = vty_read_config_file(config_file, NULL); + if (rc < 0) { + fprintf(stderr, "Failed to parse the config file: '%s'\n", + config_file); + exit(1); + } + if (!settsc_enabled && !setbsic_enabled) + settsc_enabled = setbsic_enabled = 1; + + write_pid_file("osmo-bts"); + + rc = telnet_init(tall_bts_ctx, NULL, 4241); + if (rc < 0) { + fprintf(stderr, "Error initializing telnet\n"); + exit(1); + } + + if (pcu_sock_init()) { + fprintf(stderr, "PCU L1 socket failed\n"); + exit(-1); + } + + signal(SIGINT, &signal_handler); + //signal(SIGABRT, &signal_handler); + signal(SIGUSR1, &signal_handler); + signal(SIGUSR2, &signal_handler); + osmo_init_ignore_signals(); + + if (!btsb->bsc_oml_host) { + fprintf(stderr, "Cannot start BTS without knowing BSC OML IP\n"); + exit(1); + } + + line = abis_open(bts, btsb->bsc_oml_host, "sysmoBTS"); + if (!line) { + fprintf(stderr, "unable to connect to BSC\n"); + exit(1); + } + + if (daemonize) { + rc = osmo_daemonize(); + if (rc < 0) { + perror("Error during daemonize"); + exit(1); + } + } + + if (rt_prio != -1) { + struct sched_param schedp; + + /* high priority scheduling required for handling bursts */ + memset(&schedp, 0, sizeof(schedp)); + schedp.sched_priority = rt_prio; + rc = sched_setscheduler(0, SCHED_RR, &schedp); + if (rc) { + fprintf(stderr, "Error setting SCHED_RR with prio %d\n", + rt_prio); + } + } + + while (quit < 2) { + log_reset_context(); + osmo_select_main(0); + } + +#if 0 + telnet_exit(); + + talloc_report_full(tall_bts_ctx, stderr); +#endif + + return 0; +} + |