Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 1 | /* pcu_main.cpp |
| 2 | * |
| 3 | * Copyright (C) 2012 Ivan Klyuchnikov |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version 2 |
| 8 | * of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 18 | */ |
| 19 | |
| 20 | #include <gprs_bssgp_pcu.h> |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 21 | #include <arpa/inet.h> |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 22 | #include <pcu_l1_if.h> |
Andreas Eversberg | 5dac2f0 | 2012-06-27 15:52:04 +0200 | [diff] [blame] | 23 | #include <gprs_rlcmac.h> |
Ivan Kluchnikov | 61a33f7 | 2012-04-12 15:22:06 +0400 | [diff] [blame] | 24 | #include <gsm_timer.h> |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 25 | #include <gprs_debug.h> |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 26 | #include <unistd.h> |
| 27 | #include <getopt.h> |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 28 | #include <signal.h> |
Andreas Eversberg | 783aa4b | 2013-05-05 09:15:11 +0200 | [diff] [blame] | 29 | #include <sched.h> |
Holger Hans Peter Freyther | 67ed34e | 2013-10-17 17:01:54 +0200 | [diff] [blame] | 30 | #include <bts.h> |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 31 | extern "C" { |
| 32 | #include "pcu_vty.h" |
| 33 | #include <osmocom/vty/telnet_interface.h> |
| 34 | #include <osmocom/vty/logging.h> |
Jacob Erlbeck | 42aba81 | 2015-11-10 15:32:00 +0100 | [diff] [blame] | 35 | #include <osmocom/core/stats.h> |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 36 | } |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 37 | |
Andreas Eversberg | 3e372d5 | 2012-07-06 09:28:15 +0200 | [diff] [blame] | 38 | extern struct gprs_nsvc *nsvc; |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 39 | uint16_t spoof_mcc = 0, spoof_mnc = 0; |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 40 | static int config_given = 0; |
Holger Hans Peter Freyther | 4e8b50c | 2013-11-11 20:12:30 +0100 | [diff] [blame] | 41 | static char *config_file = strdup("osmo-pcu.cfg"); |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 42 | extern struct vty_app_info pcu_vty_info; |
| 43 | void *tall_pcu_ctx; |
Andreas Eversberg | 7a5a67a | 2013-01-16 08:43:24 +0100 | [diff] [blame] | 44 | extern void *bv_tall_ctx; |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 45 | static int quit = 0; |
Andreas Eversberg | 783aa4b | 2013-05-05 09:15:11 +0200 | [diff] [blame] | 46 | static int rt_prio = -1; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 47 | |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 48 | static void print_help() |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 49 | { |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 50 | printf( "Some useful options:\n" |
| 51 | " -h --help this text\n" |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 52 | " -c --config-file Specify the filename of the config " |
| 53 | "file\n" |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 54 | " -m --mcc MCC use given MCC instead of value " |
| 55 | "provided by BTS\n" |
| 56 | " -n --mnc MNC use given MNC instead of value " |
| 57 | "provided by BTS\n" |
Andreas Eversberg | 783aa4b | 2013-05-05 09:15:11 +0200 | [diff] [blame] | 58 | " -r --realtime PRIO Use SCHED_RR with the specified " |
| 59 | "priority\n" |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 60 | ); |
| 61 | } |
| 62 | |
| 63 | /* FIXME: finally get some option parsing code into libosmocore */ |
| 64 | static void handle_options(int argc, char **argv) |
| 65 | { |
| 66 | while (1) { |
| 67 | int option_idx = 0, c; |
| 68 | static const struct option long_options[] = { |
| 69 | { "help", 0, 0, 'h' }, |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 70 | { "config-file", 1, 0, 'c' }, |
Andreas Eversberg | 1944bd5 | 2012-07-06 09:32:39 +0200 | [diff] [blame] | 71 | { "mcc", 1, 0, 'm' }, |
| 72 | { "mnc", 1, 0, 'n' }, |
Harald Welte | e5a0939 | 2013-01-17 12:28:16 +0100 | [diff] [blame] | 73 | { "version", 0, 0, 'V' }, |
Andreas Eversberg | 783aa4b | 2013-05-05 09:15:11 +0200 | [diff] [blame] | 74 | { "realtime", 1, 0, 'r' }, |
Holger Hans Peter Freyther | a30f476 | 2013-07-11 16:13:38 +0200 | [diff] [blame] | 75 | { "exit", 0, 0, 'e' }, |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 76 | { 0, 0, 0, 0 } |
| 77 | }; |
| 78 | |
Holger Hans Peter Freyther | a30f476 | 2013-07-11 16:13:38 +0200 | [diff] [blame] | 79 | c = getopt_long(argc, argv, "hc:m:n:Vr:e", |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 80 | long_options, &option_idx); |
| 81 | if (c == -1) |
| 82 | break; |
| 83 | |
| 84 | switch (c) { |
| 85 | case 'h': |
| 86 | print_help(); |
| 87 | exit(0); |
| 88 | break; |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 89 | case 'c': |
Holger Hans Peter Freyther | 4e8b50c | 2013-11-11 20:12:30 +0100 | [diff] [blame] | 90 | free(config_file); |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 91 | config_file = strdup(optarg); |
| 92 | config_given = 1; |
| 93 | break; |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 94 | case 'm': |
| 95 | spoof_mcc = atoi(optarg); |
| 96 | break; |
| 97 | case 'n': |
| 98 | spoof_mnc = atoi(optarg); |
| 99 | break; |
Harald Welte | e5a0939 | 2013-01-17 12:28:16 +0100 | [diff] [blame] | 100 | case 'V': |
| 101 | print_version(1); |
| 102 | exit(0); |
| 103 | break; |
Andreas Eversberg | 783aa4b | 2013-05-05 09:15:11 +0200 | [diff] [blame] | 104 | case 'r': |
| 105 | rt_prio = atoi(optarg); |
| 106 | break; |
Holger Hans Peter Freyther | a30f476 | 2013-07-11 16:13:38 +0200 | [diff] [blame] | 107 | case 'e': |
Daniel Willmann | 6d8884d | 2014-06-04 18:30:59 +0200 | [diff] [blame] | 108 | fprintf(stderr, "Warning: Option '-e' is deprecated!\n"); |
Holger Hans Peter Freyther | a30f476 | 2013-07-11 16:13:38 +0200 | [diff] [blame] | 109 | break; |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 110 | default: |
| 111 | fprintf(stderr, "Unknown option '%c'\n", c); |
| 112 | exit(0); |
| 113 | break; |
| 114 | } |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 115 | } |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 116 | } |
| 117 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 118 | void sighandler(int sigset) |
| 119 | { |
| 120 | if (sigset == SIGHUP || sigset == SIGPIPE) |
| 121 | return; |
| 122 | |
| 123 | fprintf(stderr, "Signal %d received.\n", sigset); |
| 124 | |
| 125 | switch (sigset) { |
| 126 | case SIGINT: |
Holger Hans Peter Freyther | 72075f0 | 2013-03-19 18:33:06 +0400 | [diff] [blame] | 127 | case SIGTERM: |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 128 | /* If another signal is received afterwards, the program |
| 129 | * is terminated without finishing shutdown process. |
| 130 | */ |
| 131 | signal(SIGINT, SIG_DFL); |
| 132 | signal(SIGHUP, SIG_DFL); |
| 133 | signal(SIGTERM, SIG_DFL); |
| 134 | signal(SIGPIPE, SIG_DFL); |
| 135 | signal(SIGABRT, SIG_DFL); |
| 136 | signal(SIGUSR1, SIG_DFL); |
| 137 | signal(SIGUSR2, SIG_DFL); |
| 138 | |
| 139 | quit = 1; |
| 140 | break; |
| 141 | case SIGABRT: |
| 142 | /* in case of abort, we want to obtain a talloc report |
| 143 | * and then return to the caller, who will abort the process |
| 144 | */ |
| 145 | case SIGUSR1: |
| 146 | case SIGUSR2: |
| 147 | talloc_report_full(tall_pcu_ctx, stderr); |
| 148 | break; |
| 149 | } |
| 150 | } |
| 151 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 152 | int main(int argc, char *argv[]) |
| 153 | { |
Andreas Eversberg | 783aa4b | 2013-05-05 09:15:11 +0200 | [diff] [blame] | 154 | struct sched_param param; |
Andreas Eversberg | dfa563c | 2012-07-06 08:13:59 +0200 | [diff] [blame] | 155 | struct gprs_rlcmac_bts *bts; |
Andreas Eversberg | 3e372d5 | 2012-07-06 09:28:15 +0200 | [diff] [blame] | 156 | int rc; |
Andreas Eversberg | 5dac2f0 | 2012-06-27 15:52:04 +0200 | [diff] [blame] | 157 | |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 158 | tall_pcu_ctx = talloc_named_const(NULL, 1, "Osmo-PCU context"); |
| 159 | if (!tall_pcu_ctx) |
| 160 | return -ENOMEM; |
Andreas Eversberg | 7a5a67a | 2013-01-16 08:43:24 +0100 | [diff] [blame] | 161 | bv_tall_ctx = tall_pcu_ctx; |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 162 | |
Holger Hans Peter Freyther | b6acfda | 2013-10-17 19:41:11 +0200 | [diff] [blame] | 163 | bts = bts_main_data(); |
Andreas Eversberg | cd8a83a | 2012-09-23 06:41:21 +0200 | [diff] [blame] | 164 | bts->fc_interval = 1; |
Andreas Eversberg | 499ff41 | 2012-10-03 14:21:36 +0200 | [diff] [blame] | 165 | bts->initial_cs_dl = bts->initial_cs_ul = 1; |
Jacob Erlbeck | 96ccea8 | 2016-01-07 15:00:43 +0100 | [diff] [blame] | 166 | bts->initial_mcs_dl = bts->initial_mcs_ul = 1; |
Andreas Eversberg | dfa563c | 2012-07-06 08:13:59 +0200 | [diff] [blame] | 167 | bts->cs1 = 1; |
| 168 | bts->t3142 = 20; |
| 169 | bts->t3169 = 5; |
| 170 | bts->t3191 = 5; |
| 171 | bts->t3193_msec = 100; |
| 172 | bts->t3195 = 5; |
| 173 | bts->n3101 = 10; |
| 174 | bts->n3103 = 4; |
| 175 | bts->n3105 = 8; |
Andreas Eversberg | 0b874b6 | 2013-03-16 15:56:01 +0100 | [diff] [blame] | 176 | bts->alpha = 0; /* a = 0.0 */ |
Jacob Erlbeck | 3c91cb8 | 2015-06-04 10:05:48 +0200 | [diff] [blame] | 177 | bts->ms_idle_sec = 60; /* slightly above T3314 (default 44s, 24.008, 11.2.2) */ |
Jacob Erlbeck | 1751c62 | 2015-06-04 12:12:32 +0200 | [diff] [blame] | 178 | bts->cs_adj_enabled = 1; |
| 179 | bts->cs_adj_upper_limit = 33; /* Decrease CS if the error rate is above */ |
| 180 | bts->cs_adj_lower_limit = 10; /* Increase CS if the error rate is below */ |
Jacob Erlbeck | b33e675 | 2015-06-04 19:04:30 +0200 | [diff] [blame] | 181 | bts->max_cs_ul = 4; |
| 182 | bts->max_cs_dl = 4; |
Jacob Erlbeck | 0d05805 | 2016-01-07 11:48:28 +0100 | [diff] [blame] | 183 | bts->max_mcs_ul = 4; |
| 184 | bts->max_mcs_dl = 4; |
Jacob Erlbeck | 94cde13 | 2015-06-09 09:44:36 +0200 | [diff] [blame] | 185 | /* CS-1 to CS-4 */ |
| 186 | bts->cs_lqual_ranges[0].low = -256; |
| 187 | bts->cs_lqual_ranges[0].high = 6; |
| 188 | bts->cs_lqual_ranges[1].low = 5; |
| 189 | bts->cs_lqual_ranges[1].high = 8; |
| 190 | bts->cs_lqual_ranges[2].low = 7; |
| 191 | bts->cs_lqual_ranges[2].high = 13; |
| 192 | bts->cs_lqual_ranges[3].low = 12; |
| 193 | bts->cs_lqual_ranges[3].high = 256; |
Jacob Erlbeck | 70b96aa | 2015-06-12 10:52:34 +0200 | [diff] [blame] | 194 | bts->cs_downgrade_threshold = 200; |
Andreas Eversberg | 5dac2f0 | 2012-06-27 15:52:04 +0200 | [diff] [blame] | 195 | |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 196 | /* TODO: increase them when CRBB decoding is implemented */ |
| 197 | bts->ws_base = 64; |
| 198 | bts->ws_pdch = 0; |
| 199 | |
Jacob Erlbeck | b31f5ef | 2015-07-21 14:00:14 +0200 | [diff] [blame] | 200 | bts->llc_codel_interval_msec = LLC_CODEL_USE_DEFAULT; |
Jacob Erlbeck | eb93f59 | 2015-11-30 11:53:06 +0100 | [diff] [blame] | 201 | bts->dl_tbf_idle_msec = 2000; |
| 202 | bts->llc_idle_ack_csec = 10; |
Jacob Erlbeck | b31f5ef | 2015-07-21 14:00:14 +0200 | [diff] [blame] | 203 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 204 | msgb_set_talloc_ctx(tall_pcu_ctx); |
| 205 | |
Ivan Kluchnikov | a9f1ff2 | 2012-05-24 22:25:06 +0400 | [diff] [blame] | 206 | osmo_init_logging(&gprs_log_info); |
Jacob Erlbeck | 42aba81 | 2015-11-10 15:32:00 +0100 | [diff] [blame] | 207 | osmo_stats_init(tall_pcu_ctx); |
Jacob Erlbeck | 56af6d5 | 2015-08-17 14:06:21 +0200 | [diff] [blame] | 208 | gprs_ns_set_log_ss(DNS); |
Jacob Erlbeck | 00fc6b1 | 2015-04-09 19:26:39 +0200 | [diff] [blame] | 209 | bssgp_set_log_ss(DBSSGP); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 210 | |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 211 | vty_init(&pcu_vty_info); |
| 212 | pcu_vty_init(&gprs_log_info); |
| 213 | |
Andreas Eversberg | 81e895b | 2012-07-06 08:24:53 +0200 | [diff] [blame] | 214 | handle_options(argc, argv); |
| 215 | if ((!!spoof_mcc) + (!!spoof_mnc) == 1) { |
| 216 | fprintf(stderr, "--mcc and --mnc must be specified " |
| 217 | "together.\n"); |
| 218 | exit(0); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 219 | } |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 220 | |
| 221 | rc = vty_read_config_file(config_file, NULL); |
| 222 | if (rc < 0 && config_given) { |
| 223 | fprintf(stderr, "Failed to parse the config file: '%s'\n", |
| 224 | config_file); |
| 225 | exit(1); |
| 226 | } |
| 227 | if (rc < 0) |
| 228 | fprintf(stderr, "No config file: '%s' Using default config.\n", |
| 229 | config_file); |
| 230 | |
| 231 | rc = telnet_init(tall_pcu_ctx, NULL, 4240); |
| 232 | if (rc < 0) { |
| 233 | fprintf(stderr, "Error initializing telnet\n"); |
| 234 | exit(1); |
| 235 | } |
| 236 | |
Andreas Eversberg | f298fa8 | 2012-07-13 14:50:57 +0200 | [diff] [blame] | 237 | if (!bts->alloc_algorithm) |
Jacob Erlbeck | f16a069 | 2015-07-14 14:29:34 +0200 | [diff] [blame] | 238 | bts->alloc_algorithm = alloc_algorithm_dynamic; |
Andreas Eversberg | f298fa8 | 2012-07-13 14:50:57 +0200 | [diff] [blame] | 239 | |
Andreas Eversberg | 3e372d5 | 2012-07-06 09:28:15 +0200 | [diff] [blame] | 240 | rc = pcu_l1if_open(); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 241 | |
Andreas Eversberg | 3e372d5 | 2012-07-06 09:28:15 +0200 | [diff] [blame] | 242 | if (rc < 0) |
| 243 | return rc; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 244 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 245 | signal(SIGINT, sighandler); |
| 246 | signal(SIGHUP, sighandler); |
| 247 | signal(SIGTERM, sighandler); |
| 248 | signal(SIGPIPE, sighandler); |
| 249 | signal(SIGABRT, sighandler); |
| 250 | signal(SIGUSR1, sighandler); |
| 251 | signal(SIGUSR2, sighandler); |
| 252 | |
Andreas Eversberg | 783aa4b | 2013-05-05 09:15:11 +0200 | [diff] [blame] | 253 | /* enable realtime priority for us */ |
| 254 | if (rt_prio != -1) { |
| 255 | memset(¶m, 0, sizeof(param)); |
| 256 | param.sched_priority = rt_prio; |
| 257 | rc = sched_setscheduler(getpid(), SCHED_RR, ¶m); |
| 258 | if (rc != 0) { |
| 259 | fprintf(stderr, "Setting SCHED_RR priority(%d) failed: %s\n", |
| 260 | param.sched_priority, strerror(errno)); |
| 261 | exit(1); |
| 262 | } |
| 263 | } |
| 264 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 265 | while (!quit) { |
Ivan Kluchnikov | 61a33f7 | 2012-04-12 15:22:06 +0400 | [diff] [blame] | 266 | osmo_gsm_timers_check(); |
| 267 | osmo_gsm_timers_prepare(); |
| 268 | osmo_gsm_timers_update(); |
| 269 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 270 | osmo_select_main(0); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 271 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 272 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 273 | telnet_exit(); |
| 274 | |
Andreas Eversberg | 3e372d5 | 2012-07-06 09:28:15 +0200 | [diff] [blame] | 275 | pcu_l1if_close(); |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 276 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 277 | talloc_report_full(tall_pcu_ctx, stderr); |
Andreas Eversberg | ebde64f | 2012-07-12 09:18:42 +0200 | [diff] [blame] | 278 | talloc_free(tall_pcu_ctx); |
Andreas Eversberg | 3e372d5 | 2012-07-06 09:28:15 +0200 | [diff] [blame] | 279 | |
| 280 | return 0; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 281 | } |