Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 1 | /* |
| 2 | * osmo-pcap-client code |
| 3 | * |
| 4 | * (C) 2011 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 5 | * (C) 2011 by On-Waves |
| 6 | * All Rights Reserved |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU Affero General Public License as published by |
| 10 | * the Free Software Foundation; either version 3 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU Affero General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Affero General Public License |
| 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | * |
| 21 | */ |
| 22 | |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 23 | #include <osmo-pcap/common.h> |
Holger Hans Peter Freyther | 3b9b38c | 2011-05-31 17:42:13 +0200 | [diff] [blame] | 24 | #include <osmo-pcap/osmo_pcap_client.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 25 | |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 26 | #include <osmocore/process.h> |
| 27 | #include <osmocore/rate_ctr.h> |
| 28 | #include <osmocore/select.h> |
| 29 | #include <osmocore/talloc.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 30 | |
| 31 | #include <osmocom/vty/logging.h> |
| 32 | #include <osmocom/vty/telnet_interface.h> |
| 33 | |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 34 | #include <pcap.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 35 | #include <signal.h> |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 36 | #include <stdio.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 37 | #include <string.h> |
| 38 | #include <time.h> |
| 39 | |
| 40 | #define _GNU_SOURCE |
| 41 | #include <getopt.h> |
| 42 | |
| 43 | #include "osmopcapconfig.h" |
| 44 | |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 45 | |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 46 | static const char *config_file = "osmo-pcap-client.cfg"; |
| 47 | static int daemonize = 0; |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 48 | static struct log_target *stderr_target = NULL; |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 49 | |
| 50 | void *tall_bsc_ctx; |
Holger Hans Peter Freyther | 3b9b38c | 2011-05-31 17:42:13 +0200 | [diff] [blame] | 51 | struct osmo_pcap_client *pcap_client; |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 52 | extern void *tall_msgb_ctx; |
| 53 | extern void *tall_ctr_ctx; |
| 54 | |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 55 | |
| 56 | /* drop in */ |
| 57 | static void osmo_init_ignore_signals(void) |
| 58 | { |
| 59 | /* Signals that by default would terminate */ |
| 60 | signal(SIGPIPE, SIG_IGN); |
| 61 | signal(SIGALRM, SIG_IGN); |
| 62 | signal(SIGHUP, SIG_IGN); |
| 63 | signal(SIGIO, SIG_IGN); |
| 64 | } |
| 65 | |
| 66 | static int osmo_init_logging(const struct log_info *log_info) |
| 67 | { |
| 68 | log_init(log_info); |
| 69 | stderr_target = log_target_create_stderr(); |
| 70 | if (!stderr_target) |
| 71 | return -1; |
| 72 | |
| 73 | log_add_target(stderr_target); |
| 74 | log_set_all_filter(stderr_target, 1); |
| 75 | return 0; |
| 76 | } |
| 77 | |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 78 | static struct vty_app_info vty_info = { |
| 79 | .name = "OsmoPCAPClient", |
| 80 | .version = PACKAGE_VERSION, |
| 81 | .go_parent_cb = osmopcap_go_parent, |
| 82 | .is_config_node = osmopcap_is_config_node, |
| 83 | }; |
| 84 | |
| 85 | static void print_usage() |
| 86 | { |
| 87 | printf("Usage: osmo_pcap_client\n"); |
| 88 | } |
| 89 | |
| 90 | static void print_help() |
| 91 | { |
| 92 | printf(" Some useful help...\n"); |
| 93 | printf(" -h --help this text\n"); |
| 94 | printf(" -D --daemonize Fork the process into a background daemon\n"); |
| 95 | printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM enable debugging\n"); |
| 96 | printf(" -s --disable-color\n"); |
| 97 | printf(" -T --timestamp. Print a timestamp in the debug output.\n"); |
| 98 | printf(" -e --log-level number. Set a global loglevel.\n"); |
| 99 | printf(" -c --config-file filename The config file to use.\n"); |
| 100 | } |
| 101 | |
| 102 | static void handle_options(int argc, char **argv) |
| 103 | { |
| 104 | while (1) { |
| 105 | int option_index = 0, c; |
| 106 | static struct option long_options[] = { |
| 107 | {"help", 0, 0, 'h'}, |
| 108 | {"daemonize", 0, 0, 'D'}, |
| 109 | {"debug", 1, 0, 'd'}, |
| 110 | {"disable-color", 0, 0, 's'}, |
| 111 | {"timestamp", 0, 0, 'T'}, |
| 112 | {"log-level", 1, 0, 'e'}, |
| 113 | {"config-file", 1, 0, 'c'}, |
| 114 | {0, 0, 0, 0} |
| 115 | }; |
| 116 | |
| 117 | c = getopt_long(argc, argv, "hd:DsTc:e:", |
| 118 | long_options, &option_index); |
| 119 | if (c == -1) |
| 120 | break; |
| 121 | |
| 122 | switch (c) { |
| 123 | case 'h': |
| 124 | print_usage(); |
| 125 | print_help(); |
| 126 | exit(0); |
| 127 | case 'D': |
| 128 | daemonize = 1; |
| 129 | break; |
| 130 | case 'd': |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 131 | log_parse_category_mask(stderr_target, optarg); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 132 | break; |
| 133 | case 's': |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 134 | log_set_use_color(stderr_target, 0); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 135 | break; |
| 136 | case 'T': |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 137 | log_set_print_timestamp(stderr_target, 1); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 138 | break; |
| 139 | case 'e': |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 140 | log_set_log_level(stderr_target, atoi(optarg)); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 141 | break; |
| 142 | case 'c': |
| 143 | config_file = strdup(optarg); |
| 144 | break; |
| 145 | default: |
| 146 | /* ignore */ |
| 147 | break; |
| 148 | } |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | static void signal_handler(int signal) |
| 153 | { |
| 154 | fprintf(stdout, "signal %u received\n", signal); |
| 155 | |
| 156 | switch (signal) { |
| 157 | case SIGINT: |
| 158 | exit(0); |
| 159 | break; |
| 160 | case SIGABRT: |
| 161 | /* in case of abort, we want to obtain a talloc report |
| 162 | * and then return to the caller, who will abort the process */ |
| 163 | case SIGUSR1: |
| 164 | talloc_report(tall_vty_ctx, stderr); |
| 165 | talloc_report_full(tall_bsc_ctx, stderr); |
| 166 | break; |
| 167 | default: |
| 168 | break; |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | static void talloc_init_ctx() |
| 173 | { |
| 174 | tall_bsc_ctx = talloc_named_const(NULL, 0, "nat"); |
| 175 | tall_msgb_ctx = talloc_named_const(tall_bsc_ctx, 0, "msgb"); |
| 176 | tall_ctr_ctx = talloc_named_const(tall_bsc_ctx, 0, "counter"); |
| 177 | } |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 178 | |
| 179 | int main(int argc, char **argv) |
| 180 | { |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 181 | int rc; |
| 182 | |
| 183 | talloc_init_ctx(); |
| 184 | osmo_init_logging(&log_info); |
| 185 | |
| 186 | vty_info.copyright = osmopcap_copyright; |
| 187 | vty_init(&vty_info); |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 188 | logging_vty_add_cmds(); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 189 | |
| 190 | /* parse options */ |
| 191 | handle_options(argc, argv); |
| 192 | |
| 193 | rate_ctr_init(tall_bsc_ctx); |
| 194 | |
| 195 | /* seed the PRNG */ |
| 196 | srand(time(NULL)); |
| 197 | |
| 198 | |
| 199 | signal(SIGINT, &signal_handler); |
| 200 | signal(SIGABRT, &signal_handler); |
| 201 | signal(SIGUSR1, &signal_handler); |
| 202 | osmo_init_ignore_signals(); |
| 203 | |
| 204 | telnet_init(tall_bsc_ctx, NULL, 4240); |
| 205 | |
Holger Hans Peter Freyther | 3b9b38c | 2011-05-31 17:42:13 +0200 | [diff] [blame] | 206 | pcap_client = talloc_zero(tall_bsc_ctx, struct osmo_pcap_client); |
| 207 | if (!pcap_client) { |
| 208 | LOGP(DCLIENT, LOGL_ERROR, "Failed to allocate osmo_pcap_client.\n"); |
| 209 | exit(1); |
| 210 | } |
| 211 | pcap_client->fd.fd = -1; |
| 212 | vty_client_init(pcap_client); |
| 213 | |
Holger Hans Peter Freyther | 7728820 | 2011-05-31 21:19:22 +0200 | [diff] [blame] | 214 | /* initialize the queue */ |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 215 | write_queue_init(&pcap_client->wqueue, 10); |
Holger Hans Peter Freyther | 7728820 | 2011-05-31 21:19:22 +0200 | [diff] [blame] | 216 | pcap_client->wqueue.bfd.fd = -1; |
| 217 | |
Holger Hans Peter Freyther | cd2d3db | 2011-05-31 18:39:33 +0200 | [diff] [blame] | 218 | |
| 219 | if (vty_read_config_file(config_file, NULL) < 0) { |
| 220 | LOGP(DCLIENT, LOGL_ERROR, |
| 221 | "Failed to parse the config file: %s\n", config_file); |
| 222 | exit(1); |
| 223 | } |
| 224 | |
Holger Hans Peter Freyther | 7728820 | 2011-05-31 21:19:22 +0200 | [diff] [blame] | 225 | /* attempt to connect to the remote */ |
| 226 | osmo_client_connect(pcap_client); |
| 227 | |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 228 | if (daemonize) { |
| 229 | rc = osmo_daemonize(); |
| 230 | if (rc < 0) { |
| 231 | perror("Error during daemonize"); |
| 232 | exit(1); |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | while (1) { |
Holger Hans Peter Freyther | d5cbb67 | 2011-08-05 18:02:47 +0200 | [diff] [blame] | 237 | bsc_select_main(0); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 238 | } |
| 239 | |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 240 | return(0); |
| 241 | } |