Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 1 | /* |
| 2 | * osmo-pcap-client code |
| 3 | * |
Holger Hans Peter Freyther | 86282d6 | 2016-08-18 18:34:27 +0200 | [diff] [blame] | 4 | * (C) 2011-2016 by Holger Hans Peter Freyther <holger@moiji-mobile.com> |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 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 | c266796 | 2016-08-25 23:07:44 +0200 | [diff] [blame] | 25 | #include <osmo-pcap/osmo_tls.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 26 | |
| 27 | #include <osmocom/core/application.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 28 | #include <osmocom/core/rate_ctr.h> |
| 29 | #include <osmocom/core/select.h> |
Holger Hans Peter Freyther | 6e938ed | 2016-08-13 10:36:58 +0200 | [diff] [blame] | 30 | #include <osmocom/core/stats.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 31 | #include <osmocom/core/talloc.h> |
| 32 | |
| 33 | #include <osmocom/vty/logging.h> |
| 34 | #include <osmocom/vty/telnet_interface.h> |
Holger Hans Peter Freyther | 6e938ed | 2016-08-13 10:36:58 +0200 | [diff] [blame] | 35 | #include <osmocom/vty/stats.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 36 | |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 37 | #include <pcap.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 38 | #include <signal.h> |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 39 | #include <stdio.h> |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 40 | #include <string.h> |
| 41 | #include <time.h> |
| 42 | |
| 43 | #define _GNU_SOURCE |
| 44 | #include <getopt.h> |
| 45 | |
| 46 | #include "osmopcapconfig.h" |
| 47 | |
| 48 | static const char *config_file = "osmo-pcap-client.cfg"; |
| 49 | static int daemonize = 0; |
| 50 | |
Pau Espin Pedrol | 2828690 | 2018-10-08 13:24:33 +0200 | [diff] [blame] | 51 | void *tall_cli_ctx; |
Holger Hans Peter Freyther | 3b9b38c | 2011-05-31 17:42:13 +0200 | [diff] [blame] | 52 | struct osmo_pcap_client *pcap_client; |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 53 | extern void *tall_msgb_ctx; |
| 54 | extern void *tall_ctr_ctx; |
| 55 | |
Holger Hans Peter Freyther | f416463 | 2016-08-18 18:39:53 +0200 | [diff] [blame] | 56 | |
| 57 | static const struct rate_ctr_desc pcap_client_ctr_desc[] = { |
Pau Espin Pedrol | f10c578 | 2018-10-08 20:20:10 +0200 | [diff] [blame] | 58 | [CLIENT_CTR_CONNECT] = { "server:connect", "Connects to the server" }, |
| 59 | [CLIENT_CTR_BYTES] = { "captured:bytes", "Captured bytes " }, |
| 60 | [CLIENT_CTR_PKTS] = { "captured:pkts", "Captured packets " }, |
| 61 | [CLIENT_CTR_2BIG] = { "bpf:too_big", "Captured data too big " }, |
| 62 | [CLIENT_CTR_NOMEM] = { "client:no_mem", "No memory available " }, |
| 63 | [CLIENT_CTR_QERR] = { "client:queue_err", "Can not queue data " }, |
| 64 | [CLIENT_CTR_PERR] = { "client:pcap_err", "libpcap error " }, |
| 65 | [CLIENT_CTR_WERR] = { "client:write_err", "Write error " }, |
| 66 | [CLIENT_CTR_P_RECV] = { "pcap:recv", "PCAP received packets " }, |
| 67 | [CLIENT_CTR_P_DROP] = { "pcap:drop", "PCAP dropped packets " }, |
| 68 | [CLIENT_CTR_P_IFDROP] = { "pcap:ifdrop", "iface dropped packets " }, |
Holger Hans Peter Freyther | f416463 | 2016-08-18 18:39:53 +0200 | [diff] [blame] | 69 | }; |
| 70 | |
| 71 | static const struct rate_ctr_group_desc pcap_client_ctr_group_desc = { |
Pau Espin Pedrol | f10c578 | 2018-10-08 20:20:10 +0200 | [diff] [blame] | 72 | .group_name_prefix = "pcap:client", |
Holger Hans Peter Freyther | f416463 | 2016-08-18 18:39:53 +0200 | [diff] [blame] | 73 | .group_description = "PCAP Client statistics", |
| 74 | .num_ctr = ARRAY_SIZE(pcap_client_ctr_desc), |
| 75 | .ctr_desc = pcap_client_ctr_desc, |
| 76 | .class_id = OSMO_STATS_CLASS_GLOBAL, |
| 77 | }; |
| 78 | |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 79 | static struct vty_app_info vty_info = { |
| 80 | .name = "OsmoPCAPClient", |
| 81 | .version = PACKAGE_VERSION, |
| 82 | .go_parent_cb = osmopcap_go_parent, |
| 83 | .is_config_node = osmopcap_is_config_node, |
| 84 | }; |
| 85 | |
| 86 | static void print_usage() |
| 87 | { |
| 88 | printf("Usage: osmo_pcap_client\n"); |
| 89 | } |
| 90 | |
| 91 | static void print_help() |
| 92 | { |
| 93 | printf(" Some useful help...\n"); |
| 94 | printf(" -h --help this text\n"); |
| 95 | printf(" -D --daemonize Fork the process into a background daemon\n"); |
| 96 | printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM enable debugging\n"); |
| 97 | printf(" -s --disable-color\n"); |
| 98 | printf(" -T --timestamp. Print a timestamp in the debug output.\n"); |
| 99 | printf(" -e --log-level number. Set a global loglevel.\n"); |
| 100 | printf(" -c --config-file filename The config file to use.\n"); |
| 101 | } |
| 102 | |
| 103 | static void handle_options(int argc, char **argv) |
| 104 | { |
| 105 | while (1) { |
| 106 | int option_index = 0, c; |
| 107 | static struct option long_options[] = { |
| 108 | {"help", 0, 0, 'h'}, |
| 109 | {"daemonize", 0, 0, 'D'}, |
| 110 | {"debug", 1, 0, 'd'}, |
| 111 | {"disable-color", 0, 0, 's'}, |
| 112 | {"timestamp", 0, 0, 'T'}, |
| 113 | {"log-level", 1, 0, 'e'}, |
| 114 | {"config-file", 1, 0, 'c'}, |
| 115 | {0, 0, 0, 0} |
| 116 | }; |
| 117 | |
| 118 | c = getopt_long(argc, argv, "hd:DsTc:e:", |
| 119 | long_options, &option_index); |
| 120 | if (c == -1) |
| 121 | break; |
| 122 | |
| 123 | switch (c) { |
| 124 | case 'h': |
| 125 | print_usage(); |
| 126 | print_help(); |
| 127 | exit(0); |
| 128 | case 'D': |
| 129 | daemonize = 1; |
| 130 | break; |
| 131 | case 'd': |
| 132 | log_parse_category_mask(osmo_stderr_target, optarg); |
| 133 | break; |
| 134 | case 's': |
| 135 | log_set_use_color(osmo_stderr_target, 0); |
| 136 | break; |
| 137 | case 'T': |
| 138 | log_set_print_timestamp(osmo_stderr_target, 1); |
| 139 | break; |
| 140 | case 'e': |
| 141 | log_set_log_level(osmo_stderr_target, atoi(optarg)); |
| 142 | break; |
| 143 | case 'c': |
| 144 | config_file = strdup(optarg); |
| 145 | break; |
| 146 | default: |
| 147 | /* ignore */ |
| 148 | break; |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | static void signal_handler(int signal) |
| 154 | { |
| 155 | fprintf(stdout, "signal %u received\n", signal); |
| 156 | |
| 157 | switch (signal) { |
| 158 | case SIGINT: |
| 159 | exit(0); |
| 160 | break; |
| 161 | case SIGABRT: |
| 162 | /* in case of abort, we want to obtain a talloc report |
| 163 | * and then return to the caller, who will abort the process */ |
| 164 | case SIGUSR1: |
| 165 | talloc_report(tall_vty_ctx, stderr); |
Pau Espin Pedrol | 2828690 | 2018-10-08 13:24:33 +0200 | [diff] [blame] | 166 | talloc_report_full(tall_cli_ctx, stderr); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 167 | break; |
| 168 | default: |
| 169 | break; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | static void talloc_init_ctx() |
| 174 | { |
Pau Espin Pedrol | 2828690 | 2018-10-08 13:24:33 +0200 | [diff] [blame] | 175 | tall_cli_ctx = talloc_named_const(NULL, 0, "client"); |
| 176 | tall_msgb_ctx = talloc_named_const(tall_cli_ctx, 0, "msgb"); |
| 177 | tall_ctr_ctx = talloc_named_const(tall_cli_ctx, 0, "counter"); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 178 | } |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 179 | |
| 180 | int main(int argc, char **argv) |
| 181 | { |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 182 | int rc; |
| 183 | |
| 184 | talloc_init_ctx(); |
Pau Espin Pedrol | dc27ca8 | 2018-10-08 13:28:08 +0200 | [diff] [blame] | 185 | osmo_init_logging2(tall_cli_ctx, &log_info); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 186 | |
| 187 | vty_info.copyright = osmopcap_copyright; |
| 188 | vty_init(&vty_info); |
| 189 | logging_vty_add_cmds(&log_info); |
Holger Hans Peter Freyther | 6e938ed | 2016-08-13 10:36:58 +0200 | [diff] [blame] | 190 | osmo_stats_vty_add_cmds(&log_info); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 191 | |
| 192 | /* parse options */ |
| 193 | handle_options(argc, argv); |
| 194 | |
Pau Espin Pedrol | 2828690 | 2018-10-08 13:24:33 +0200 | [diff] [blame] | 195 | rate_ctr_init(tall_cli_ctx); |
| 196 | osmo_stats_init(tall_cli_ctx); |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 197 | |
| 198 | /* seed the PRNG */ |
| 199 | srand(time(NULL)); |
| 200 | |
| 201 | |
| 202 | signal(SIGINT, &signal_handler); |
| 203 | signal(SIGABRT, &signal_handler); |
| 204 | signal(SIGUSR1, &signal_handler); |
| 205 | osmo_init_ignore_signals(); |
| 206 | |
Holger Hans Peter Freyther | c266796 | 2016-08-25 23:07:44 +0200 | [diff] [blame] | 207 | osmo_tls_init(); |
| 208 | |
Pau Espin Pedrol | 2828690 | 2018-10-08 13:24:33 +0200 | [diff] [blame] | 209 | rc = telnet_init(tall_cli_ctx, NULL, OSMO_VTY_PORT_PCAP_CLIENT); |
Holger Hans Peter Freyther | 86282d6 | 2016-08-18 18:34:27 +0200 | [diff] [blame] | 210 | if (rc < 0) { |
| 211 | LOGP(DCLIENT, LOGL_ERROR, "Failed to bind telnet interface\n"); |
| 212 | exit(1); |
| 213 | } |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 214 | |
Pau Espin Pedrol | f946fa2 | 2018-10-08 15:35:13 +0200 | [diff] [blame^] | 215 | pcap_client = osmo_pcap_client_alloc(tall_cli_ctx); |
Holger Hans Peter Freyther | 3b9b38c | 2011-05-31 17:42:13 +0200 | [diff] [blame] | 216 | if (!pcap_client) { |
| 217 | LOGP(DCLIENT, LOGL_ERROR, "Failed to allocate osmo_pcap_client.\n"); |
| 218 | exit(1); |
| 219 | } |
Holger Hans Peter Freyther | 3b9b38c | 2011-05-31 17:42:13 +0200 | [diff] [blame] | 220 | vty_client_init(pcap_client); |
| 221 | |
Holger Hans Peter Freyther | 7728820 | 2011-05-31 21:19:22 +0200 | [diff] [blame] | 222 | /* initialize the queue */ |
Holger Hans Peter Freyther | e3d7c3e | 2016-11-08 15:02:38 +0100 | [diff] [blame] | 223 | INIT_LLIST_HEAD(&pcap_client->conns); |
Holger Hans Peter Freyther | 1448f50 | 2016-11-08 22:53:32 +0100 | [diff] [blame] | 224 | osmo_client_conn_init(&pcap_client->conn, pcap_client); |
| 225 | pcap_client->conn.name = "default"; |
Holger Hans Peter Freyther | 7728820 | 2011-05-31 21:19:22 +0200 | [diff] [blame] | 226 | |
Holger Hans Peter Freyther | f416463 | 2016-08-18 18:39:53 +0200 | [diff] [blame] | 227 | /* initialize the stats interface */ |
| 228 | pcap_client->ctrg = rate_ctr_group_alloc(pcap_client, &pcap_client_ctr_group_desc, 0); |
| 229 | if (!pcap_client->ctrg) { |
| 230 | LOGP(DCLIENT, LOGL_ERROR, "Failed to allocate rate ctr\n"); |
| 231 | exit(1); |
| 232 | } |
Holger Hans Peter Freyther | cd2d3db | 2011-05-31 18:39:33 +0200 | [diff] [blame] | 233 | |
| 234 | if (vty_read_config_file(config_file, NULL) < 0) { |
| 235 | LOGP(DCLIENT, LOGL_ERROR, |
| 236 | "Failed to parse the config file: %s\n", config_file); |
| 237 | exit(1); |
| 238 | } |
| 239 | |
Holger Hans Peter Freyther | 7728820 | 2011-05-31 21:19:22 +0200 | [diff] [blame] | 240 | /* attempt to connect to the remote */ |
Holger Hans Peter Freyther | d7ab53d | 2016-11-08 23:00:33 +0100 | [diff] [blame] | 241 | if (pcap_client->conn.srv_ip && pcap_client->conn.srv_port > 0) |
| 242 | osmo_client_connect(&pcap_client->conn); |
Holger Hans Peter Freyther | 7728820 | 2011-05-31 21:19:22 +0200 | [diff] [blame] | 243 | |
Holger Hans Peter Freyther | 530ecc0 | 2011-05-31 15:47:44 +0200 | [diff] [blame] | 244 | if (daemonize) { |
| 245 | rc = osmo_daemonize(); |
| 246 | if (rc < 0) { |
| 247 | perror("Error during daemonize"); |
| 248 | exit(1); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | while (1) { |
| 253 | osmo_select_main(0); |
| 254 | } |
| 255 | |
Holger Hans Peter Freyther | 430366a | 2011-05-31 11:16:40 +0200 | [diff] [blame] | 256 | return(0); |
| 257 | } |