Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Original implementation on libmnl: |
| 3 | * (C) 2011 by Pablo Neira Ayuso <pablo@netfilter.org> |
| 4 | * (C) 2011 by Intra2net AG <http://www.intra2net.com> |
| 5 | * |
| 6 | * Port to libnl: |
| 7 | * (C) 2013 by Mathieu J. Poirier <mathieu.poirier@linaro.org> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published |
| 11 | * by the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | */ |
| 14 | |
| 15 | #include <stdio.h> |
| 16 | #include <stdlib.h> |
| 17 | #include <string.h> |
| 18 | #include <sys/types.h> |
| 19 | #include <sys/socket.h> |
| 20 | #include <dirent.h> |
| 21 | #include <sys/stat.h> |
| 22 | #include <fcntl.h> |
| 23 | #include <unistd.h> |
| 24 | #include <time.h> |
| 25 | #include <errno.h> |
Paul Stewart | 68446ae | 2016-11-15 09:28:11 -0800 | [diff] [blame] | 26 | #include <endian.h> |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 27 | |
Paul Stewart | 68446ae | 2016-11-15 09:28:11 -0800 | [diff] [blame] | 28 | #include <netlink-private/object-api.h> |
| 29 | #include <netlink-private/types.h> |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 30 | #include <linux/netlink.h> |
| 31 | #include <linux/netfilter/nfnetlink.h> |
| 32 | #include <linux/netfilter/nfnetlink_acct.h> |
| 33 | #include <netlink/netfilter/nfnl.h> |
| 34 | #include <netlink/netlink.h> |
| 35 | #include <netlink/socket.h> |
| 36 | #include <netlink/msg.h> |
| 37 | |
| 38 | #define VERSION "1.0.1" |
| 39 | |
| 40 | enum { |
| 41 | NFACCT_CMD_NONE = 0, |
| 42 | NFACCT_CMD_LIST, |
| 43 | NFACCT_CMD_ADD, |
| 44 | NFACCT_CMD_DELETE, |
| 45 | NFACCT_CMD_GET, |
| 46 | NFACCT_CMD_FLUSH, |
| 47 | NFACCT_CMD_VERSION, |
| 48 | NFACCT_CMD_HELP, |
| 49 | NFACCT_CMD_RESTORE, |
| 50 | }; |
| 51 | |
| 52 | static int nfacct_cmd_list(int argc, char *argv[]); |
| 53 | static int nfacct_cmd_add(int argc, char *argv[]); |
| 54 | static int nfacct_cmd_delete(int argc, char *argv[]); |
| 55 | static int nfacct_cmd_get(int argc, char *argv[]); |
| 56 | static int nfacct_cmd_flush(int argc, char *argv[]); |
| 57 | static int nfacct_cmd_version(int argc, char *argv[]); |
| 58 | static int nfacct_cmd_help(int argc, char *argv[]); |
| 59 | static int nfacct_cmd_restore(int argc, char *argv[]); |
| 60 | |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 61 | #ifndef HAVE_LIBNL20 |
| 62 | #define nl_sock nl_handle |
| 63 | #define nl_socket_alloc nl_handle_alloc |
| 64 | #define nl_socket_free nl_handle_destroy |
| 65 | #endif |
| 66 | |
Paul Stewart | 68446ae | 2016-11-15 09:28:11 -0800 | [diff] [blame] | 67 | #define NL_DBG(LVL,FMT,ARG...) do { } while(0) |
| 68 | |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 69 | static void usage(char *argv[]) |
| 70 | { |
| 71 | fprintf(stderr, "Usage: %s command [parameters]...\n", argv[0]); |
| 72 | } |
| 73 | |
| 74 | static void nfacct_perror(const char *msg) |
| 75 | { |
| 76 | if (errno == 0) { |
| 77 | fprintf(stderr, "nfacct v%s: %s\n", VERSION, msg); |
| 78 | } else { |
| 79 | fprintf(stderr, "nfacct v%s: %s: %s\n", |
| 80 | VERSION, msg, strerror(errno)); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | int main(int argc, char *argv[]) |
| 85 | { |
| 86 | int cmd = NFACCT_CMD_NONE, ret = 0; |
| 87 | |
| 88 | if (argc < 2) { |
| 89 | usage(argv); |
| 90 | exit(EXIT_FAILURE); |
| 91 | } |
| 92 | |
| 93 | if (strncmp(argv[1], "list", strlen(argv[1])) == 0) |
| 94 | cmd = NFACCT_CMD_LIST; |
| 95 | else if (strncmp(argv[1], "add", strlen(argv[1])) == 0) |
| 96 | cmd = NFACCT_CMD_ADD; |
| 97 | else if (strncmp(argv[1], "delete", strlen(argv[1])) == 0) |
| 98 | cmd = NFACCT_CMD_DELETE; |
| 99 | else if (strncmp(argv[1], "get", strlen(argv[1])) == 0) |
| 100 | cmd = NFACCT_CMD_GET; |
| 101 | else if (strncmp(argv[1], "flush", strlen(argv[1])) == 0) |
| 102 | cmd = NFACCT_CMD_FLUSH; |
| 103 | else if (strncmp(argv[1], "version", strlen(argv[1])) == 0) |
| 104 | cmd = NFACCT_CMD_VERSION; |
| 105 | else if (strncmp(argv[1], "help", strlen(argv[1])) == 0) |
| 106 | cmd = NFACCT_CMD_HELP; |
| 107 | else if (strncmp(argv[1], "restore", strlen(argv[1])) == 0) |
| 108 | cmd = NFACCT_CMD_RESTORE; |
| 109 | else { |
| 110 | fprintf(stderr, "nfacct v%s: Unknown command: %s\n", |
| 111 | VERSION, argv[1]); |
| 112 | usage(argv); |
| 113 | exit(EXIT_FAILURE); |
| 114 | } |
| 115 | |
| 116 | switch(cmd) { |
| 117 | case NFACCT_CMD_LIST: |
| 118 | ret = nfacct_cmd_list(argc, argv); |
| 119 | break; |
| 120 | case NFACCT_CMD_ADD: |
| 121 | ret = nfacct_cmd_add(argc, argv); |
| 122 | break; |
| 123 | case NFACCT_CMD_DELETE: |
| 124 | ret = nfacct_cmd_delete(argc, argv); |
| 125 | break; |
| 126 | case NFACCT_CMD_GET: |
| 127 | ret = nfacct_cmd_get(argc, argv); |
| 128 | break; |
| 129 | case NFACCT_CMD_FLUSH: |
| 130 | ret = nfacct_cmd_flush(argc, argv); |
| 131 | break; |
| 132 | case NFACCT_CMD_VERSION: |
| 133 | ret = nfacct_cmd_version(argc, argv); |
| 134 | break; |
| 135 | case NFACCT_CMD_HELP: |
| 136 | ret = nfacct_cmd_help(argc, argv); |
| 137 | break; |
| 138 | case NFACCT_CMD_RESTORE: |
| 139 | ret = nfacct_cmd_restore(argc, argv); |
| 140 | break; |
| 141 | } |
| 142 | return ret < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
| 143 | } |
| 144 | |
| 145 | |
| 146 | static int message_received(struct nl_msg *msg, void *arg) |
| 147 | { |
| 148 | struct nlmsghdr *hdr = msg->nm_nlh; |
| 149 | |
| 150 | if (hdr->nlmsg_type == NLMSG_ERROR) { |
| 151 | struct nlmsgerr *err = nlmsg_data(hdr); |
| 152 | |
| 153 | if (err->error == 0) |
| 154 | return NL_STOP; |
| 155 | } |
| 156 | |
| 157 | return NL_OK; |
| 158 | } |
| 159 | |
| 160 | static int valid_input(struct nl_msg *msg, void *arg) |
| 161 | { |
| 162 | struct nlattr *nla = nlmsg_attrdata(nlmsg_hdr(msg), |
| 163 | sizeof(struct nfgenmsg)); |
| 164 | struct nlattr *tb[NFACCT_NAME_MAX+1] = {}; |
| 165 | char buf[4096]; |
| 166 | int ret; |
| 167 | |
| 168 | ret = nlmsg_parse(nlmsg_hdr(msg), |
| 169 | sizeof(struct nfgenmsg), tb, NFACCT_MAX, NULL); |
| 170 | |
| 171 | if (ret < 0) { |
| 172 | nfacct_perror("Can't parse message\n"); |
| 173 | return ret; |
| 174 | } |
| 175 | |
| 176 | ret = snprintf(buf, sizeof(buf), |
| 177 | "{ pkts = %.20llu, bytes = %.20llu } = %s;", |
| 178 | (unsigned long long)be64toh(nla_get_u64(tb[NFACCT_PKTS])), |
| 179 | (unsigned long long)be64toh(nla_get_u64(tb[NFACCT_BYTES])), |
| 180 | nla_get_string(tb[NFACCT_NAME])); |
| 181 | |
| 182 | printf("%s\n", buf); |
| 183 | |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | static int nfacct_cmd_list(int argc, char *argv[]) |
| 188 | { |
| 189 | struct nl_msg *msg; |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 190 | struct nl_sock *handle; |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 191 | int zeroctr = 0; |
| 192 | int ret, i; |
| 193 | |
| 194 | for (i=2; i<argc; i++) { |
| 195 | if (strncmp(argv[i], "reset", strlen(argv[i])) == 0) { |
| 196 | zeroctr = 1; |
| 197 | } else if (strncmp(argv[i], "xml", strlen(argv[i])) == 0) { |
| 198 | nfacct_perror("xml feature not implemented"); |
| 199 | return -1; |
| 200 | } else { |
| 201 | nfacct_perror("unknown argument"); |
| 202 | return -1; |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | msg = nlmsg_alloc(); |
| 207 | if (!msg) |
| 208 | return -1; |
| 209 | |
| 210 | ret = nfnlmsg_put(msg, |
| 211 | NL_AUTO_PID, |
| 212 | NL_AUTO_SEQ, |
| 213 | NFNL_SUBSYS_ACCT, |
| 214 | zeroctr ? |
| 215 | NFNL_MSG_ACCT_GET_CTRZERO : NFNL_MSG_ACCT_GET, |
| 216 | NLM_F_DUMP | NLM_F_REQUEST, |
| 217 | AF_UNSPEC, |
| 218 | 0); |
| 219 | |
| 220 | if (ret) { |
| 221 | NL_DBG(2, "Can't append payload to message: %s line: %d\n", |
| 222 | __FUNCTION__, __LINE__); |
| 223 | goto fail; |
| 224 | } |
| 225 | |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 226 | handle = nl_socket_alloc(); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 227 | if ((ret = nfnl_connect(handle))) { |
| 228 | NL_DBG(2, "Can't connect handle: %s line: %d\n", |
| 229 | __FUNCTION__, __LINE__); |
| 230 | goto fail; |
| 231 | } |
| 232 | |
| 233 | if ((ret = nl_send_auto_complete(handle, msg)) < 0) { |
| 234 | NL_DBG(2, "Can't send msg: %s line: %d\n", |
| 235 | __FUNCTION__, __LINE__); |
| 236 | goto fail_send; |
| 237 | } |
| 238 | |
| 239 | nl_socket_modify_cb(handle, NL_CB_VALID, NL_CB_CUSTOM, valid_input, NULL); |
| 240 | ret = nl_recvmsgs_default(handle); |
| 241 | if (ret < 0) { |
| 242 | NL_DBG(2, "Can't receice msg: %s line: %d\n", |
| 243 | __FUNCTION__, __LINE__); |
| 244 | } |
| 245 | |
| 246 | fail_send: |
| 247 | nl_close(handle); |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 248 | nl_socket_free(handle); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 249 | fail: |
| 250 | nlmsg_free(msg); |
| 251 | return ret; |
| 252 | } |
| 253 | |
| 254 | static int _nfacct_cmd_add(char *name, int pkts, int bytes) |
| 255 | { |
| 256 | struct nl_msg *msg; |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 257 | struct nl_sock *handle; |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 258 | char nfname[NFACCT_NAME_MAX]; |
| 259 | int ret; |
| 260 | |
| 261 | strncpy(nfname, name, NFACCT_NAME_MAX); |
| 262 | nfname[NFACCT_NAME_MAX-1] = '\0'; |
| 263 | |
| 264 | msg = nlmsg_alloc(); |
| 265 | if (!msg) |
| 266 | return -1; |
| 267 | |
| 268 | ret = nfnlmsg_put(msg, |
| 269 | NL_AUTO_PID, |
| 270 | NL_AUTO_SEQ, |
| 271 | NFNL_SUBSYS_ACCT, |
| 272 | NFNL_MSG_ACCT_NEW, |
| 273 | NLM_F_CREATE | NLM_F_ACK | NLM_F_REQUEST, |
| 274 | AF_UNSPEC, |
| 275 | 0); |
| 276 | |
| 277 | if (ret) { |
| 278 | NL_DBG(2, "Can't append payload to message: %s line: %d\n", |
| 279 | __FUNCTION__, __LINE__); |
| 280 | goto fail; |
| 281 | } |
| 282 | |
| 283 | nla_put_string(msg, NFACCT_NAME, nfname); |
| 284 | nla_put_u64(msg, NFACCT_PKTS, htobe64(pkts)); |
| 285 | nla_put_u64(msg, NFACCT_BYTES, htobe64(bytes)); |
| 286 | |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 287 | handle = nl_socket_alloc(); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 288 | if ((ret = nfnl_connect(handle))) { |
| 289 | NL_DBG(2, "Can't connect handle: %s line: %d\n", |
| 290 | __FUNCTION__, __LINE__); |
| 291 | goto fail; |
| 292 | } |
| 293 | |
| 294 | if ((ret = nl_send_auto_complete(handle, msg)) < 0) { |
| 295 | NL_DBG(2, "Can't send msg: %s line: %d\n", |
| 296 | __FUNCTION__, __LINE__); |
| 297 | goto fail_send; |
| 298 | } |
| 299 | |
| 300 | ret = nl_recvmsgs_default(handle); |
| 301 | if (ret < 0) { |
| 302 | NL_DBG(2, "Can't receice msg: %s line: %d\n", |
| 303 | __FUNCTION__, __LINE__); |
| 304 | } |
| 305 | |
| 306 | fail_send: |
| 307 | nl_close(handle); |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 308 | nl_socket_free(handle); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 309 | fail: |
| 310 | nlmsg_free(msg); |
| 311 | return ret; |
| 312 | } |
| 313 | |
| 314 | |
| 315 | |
| 316 | static int nfacct_cmd_add(int argc, char *argv[]) |
| 317 | { |
| 318 | if (argc < 3) { |
| 319 | nfacct_perror("missing object name"); |
| 320 | return -1; |
| 321 | } else if (argc > 3) { |
| 322 | nfacct_perror("too many arguments"); |
| 323 | return -1; |
| 324 | } |
| 325 | |
| 326 | return _nfacct_cmd_add(argv[2], 0, 0); |
| 327 | } |
| 328 | |
| 329 | static int nfacct_cmd_delete(int argc, char *argv[]) |
| 330 | { |
| 331 | struct nl_msg *msg; |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 332 | struct nl_sock *handle; |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 333 | char nfname[NFACCT_NAME_MAX]; |
| 334 | int ret; |
| 335 | |
| 336 | if (argc < 3) { |
| 337 | nfacct_perror("missing object name"); |
| 338 | return -1; |
| 339 | } else if (argc > 3) { |
| 340 | nfacct_perror("too many arguments"); |
| 341 | return -1; |
| 342 | } |
| 343 | |
| 344 | strncpy(nfname, argv[2], NFACCT_NAME_MAX); |
| 345 | nfname[NFACCT_NAME_MAX-1] = '\0'; |
| 346 | |
| 347 | msg = nlmsg_alloc(); |
| 348 | if (!msg) |
| 349 | return -1; |
| 350 | |
| 351 | ret = nfnlmsg_put(msg, |
| 352 | NL_AUTO_PID, |
| 353 | NL_AUTO_SEQ, |
| 354 | NFNL_SUBSYS_ACCT, |
| 355 | NFNL_MSG_ACCT_DEL, |
| 356 | NLM_F_ACK | NLM_F_REQUEST, |
| 357 | AF_UNSPEC, |
| 358 | 0); |
| 359 | |
| 360 | if (ret) { |
| 361 | NL_DBG(2, "Can't append payload to message: %s line: %d\n", |
| 362 | __FUNCTION__, __LINE__); |
| 363 | goto fail; |
| 364 | } |
| 365 | |
| 366 | nla_put_string(msg, NFACCT_NAME, nfname); |
| 367 | |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 368 | handle = nl_socket_alloc(); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 369 | if ((ret = nfnl_connect(handle))) { |
| 370 | NL_DBG(2, "Can't connect handle: %s line: %d\n", |
| 371 | __FUNCTION__, __LINE__); |
| 372 | goto fail; |
| 373 | } |
| 374 | |
| 375 | if ((ret = nl_send_auto_complete(handle, msg)) < 0) { |
| 376 | NL_DBG(2, "Can't send msg: %s line: %d\n", |
| 377 | __FUNCTION__, __LINE__); |
| 378 | goto fail_send; |
| 379 | } |
| 380 | |
| 381 | ret = nl_recvmsgs_default(handle); |
| 382 | if (ret < 0) { |
| 383 | NL_DBG(2, "Can't receice msg: %s line: %d\n", |
| 384 | __FUNCTION__, __LINE__); |
| 385 | } |
| 386 | |
| 387 | fail_send: |
| 388 | nl_close(handle); |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 389 | nl_socket_free(handle); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 390 | fail: |
| 391 | nlmsg_free(msg); |
| 392 | return ret; |
| 393 | return 0; |
| 394 | } |
| 395 | |
| 396 | |
| 397 | static int nfacct_cmd_get(int argc, char *argv[]) |
| 398 | { |
| 399 | struct nl_msg *msg; |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 400 | struct nl_sock *handle; |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 401 | struct nl_cb *cb; |
| 402 | char nfname[NFACCT_NAME_MAX]; |
| 403 | int zeroctr = 0; |
| 404 | int ret, i; |
| 405 | |
| 406 | if (argc < 3) { |
| 407 | nfacct_perror("missing object name"); |
| 408 | return -1; |
| 409 | } |
| 410 | |
| 411 | for (i=3; i<argc; i++) { |
| 412 | if (strncmp(argv[i], "reset", strlen(argv[i])) == 0) { |
| 413 | zeroctr = 1; |
| 414 | } else if (strncmp(argv[i], "xml", strlen(argv[i])) == 0) { |
| 415 | nfacct_perror("xml feature not implemented"); |
| 416 | return -1; |
| 417 | } else { |
| 418 | nfacct_perror("unknown argument"); |
| 419 | return -1; |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | strncpy(nfname, argv[2], NFACCT_NAME_MAX); |
| 424 | nfname[NFACCT_NAME_MAX-1] = '\0'; |
| 425 | |
| 426 | msg = nlmsg_alloc(); |
| 427 | if (!msg) |
| 428 | return -1; |
| 429 | |
| 430 | ret = nfnlmsg_put(msg, |
| 431 | NL_AUTO_PID, |
| 432 | NL_AUTO_SEQ, |
| 433 | NFNL_SUBSYS_ACCT, |
| 434 | zeroctr ? |
| 435 | NFNL_MSG_ACCT_GET_CTRZERO : NFNL_MSG_ACCT_GET, |
| 436 | NLM_F_ACK | NLM_F_REQUEST, |
| 437 | AF_UNSPEC, |
| 438 | 0); |
| 439 | |
| 440 | if (ret) { |
| 441 | NL_DBG(2, "Can't append payload to message: %s line: %d\n", |
| 442 | __FUNCTION__, __LINE__); |
| 443 | goto fail; |
| 444 | } |
| 445 | |
| 446 | nla_put_string(msg, NFACCT_NAME, nfname); |
| 447 | |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 448 | handle = nl_socket_alloc(); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 449 | |
| 450 | if (handle) { |
| 451 | cb = nl_cb_alloc(NL_CB_DEFAULT); |
| 452 | if (!cb) |
| 453 | goto fail; |
| 454 | |
| 455 | if (nl_cb_set(cb, NL_CB_MSG_IN, |
| 456 | NL_CB_CUSTOM, |
| 457 | message_received, NULL) < 0) |
| 458 | goto fail; |
| 459 | |
| 460 | nl_socket_set_cb(handle,cb); |
| 461 | } else { |
| 462 | goto fail; |
| 463 | } |
| 464 | |
| 465 | if ((ret = nfnl_connect(handle))) { |
| 466 | NL_DBG(2, "Can't connect handle: %s line: %d\n", |
| 467 | __FUNCTION__, __LINE__); |
| 468 | goto fail; |
| 469 | } |
| 470 | |
| 471 | if ((ret = nl_send_auto_complete(handle, msg)) < 0) { |
| 472 | NL_DBG(2, "Can't send msg: %s line: %d\n", |
| 473 | __FUNCTION__, __LINE__); |
| 474 | goto fail_send; |
| 475 | } |
| 476 | |
| 477 | nl_socket_modify_cb(handle, NL_CB_VALID, NL_CB_CUSTOM, valid_input, NULL); |
| 478 | ret = nl_recvmsgs_default(handle); |
| 479 | if (ret < 0) { |
| 480 | NL_DBG(2, "Can't receice msg: %s line: %d\n", |
| 481 | __FUNCTION__, __LINE__); |
| 482 | } |
| 483 | |
| 484 | fail_send: |
| 485 | nl_close(handle); |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 486 | nl_socket_free(handle); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 487 | fail: |
| 488 | nlmsg_free(msg); |
| 489 | return ret; |
| 490 | } |
| 491 | |
| 492 | static int nfacct_cmd_flush(int argc, char *argv[]) |
| 493 | { |
| 494 | struct nl_msg *msg; |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 495 | struct nl_sock *handle; |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 496 | int ret; |
| 497 | |
| 498 | if (argc > 2) { |
| 499 | nfacct_perror("too many arguments"); |
| 500 | return -1; |
| 501 | } |
| 502 | |
| 503 | msg = nlmsg_alloc(); |
| 504 | if (!msg) |
| 505 | return -1; |
| 506 | |
| 507 | ret = nfnlmsg_put(msg, |
| 508 | NL_AUTO_PID, |
| 509 | NL_AUTO_SEQ, |
| 510 | NFNL_SUBSYS_ACCT, |
| 511 | NFNL_MSG_ACCT_DEL, |
| 512 | NLM_F_ACK | NLM_F_REQUEST, |
| 513 | AF_UNSPEC, |
| 514 | 0); |
| 515 | |
| 516 | if (ret) { |
| 517 | NL_DBG(2, "Can't append payload to message: %s line: %d\n", |
| 518 | __FUNCTION__, __LINE__); |
| 519 | goto fail; |
| 520 | } |
| 521 | |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 522 | handle = nl_socket_alloc(); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 523 | if ((ret = nfnl_connect(handle))) { |
| 524 | NL_DBG(2, "Can't connect handle: %s line: %d\n", |
| 525 | __FUNCTION__, __LINE__); |
| 526 | goto fail; |
| 527 | } |
| 528 | |
| 529 | if ((ret = nl_send_auto_complete(handle, msg)) < 0) { |
| 530 | NL_DBG(2, "Can't send msg: %s line: %d\n", |
| 531 | __FUNCTION__, __LINE__); |
| 532 | goto fail_send; |
| 533 | } |
| 534 | |
| 535 | ret = nl_recvmsgs_default(handle); |
| 536 | if (ret < 0) { |
| 537 | NL_DBG(2, "Can't receice msg: %s line: %d\n", |
| 538 | __FUNCTION__, __LINE__); |
| 539 | } |
| 540 | |
| 541 | fail_send: |
| 542 | nl_close(handle); |
Mathieu Poirier | 6f7aae0 | 2013-12-20 12:18:31 -0700 | [diff] [blame] | 543 | nl_socket_free(handle); |
Mathieu Poirier | c66949f | 2013-12-12 09:50:55 -0700 | [diff] [blame] | 544 | fail: |
| 545 | nlmsg_free(msg); |
| 546 | return ret; |
| 547 | } |
| 548 | |
| 549 | static const char version_msg[] = |
| 550 | "nfacct v%s: utility for the Netfilter extended accounting " |
| 551 | "infrastructure\n" |
| 552 | "Copyright (C) 2011 Pablo Neira Ayuso <pablo@netfilter.org>\n" |
| 553 | "Copyright (C) 2011 Intra2net AG <http://www.intra2net.com>\n" |
| 554 | "Copyright (C) 2013 Mathieu Poirier <mathieu.poirier@linaro.org>\n" |
| 555 | "This program comes with ABSOLUTELY NO WARRANTY.\n" |
| 556 | "This is free software, and you are welcome to redistribute it under " |
| 557 | "certain \nconditions; see LICENSE file distributed in this package " |
| 558 | "for details.\n"; |
| 559 | |
| 560 | static int nfacct_cmd_version(int argc, char *argv[]) |
| 561 | { |
| 562 | printf(version_msg, VERSION); |
| 563 | return 0; |
| 564 | } |
| 565 | |
| 566 | static const char help_msg[] = |
| 567 | "nfacct v%s: utility for the Netfilter extended accounting " |
| 568 | "infrastructure\n" |
| 569 | "Usage: %s command [parameters]...\n\n" |
| 570 | "Commands:\n" |
| 571 | " list [reset]\t\tList the accounting object table (and reset)\n" |
| 572 | " add object-name\tAdd new accounting object to table\n" |
| 573 | " delete object-name\tDelete existing accounting object\n" |
| 574 | " get object-name\tGet existing accounting object\n" |
| 575 | " flush\t\t\tFlush accounting object table\n" |
| 576 | " restore\t\tRestore accounting object table reading 'list' output from stdin\n" |
| 577 | " version\t\tDisplay version and disclaimer\n" |
| 578 | " help\t\t\tDisplay this help message\n"; |
| 579 | |
| 580 | static int nfacct_cmd_help(int argc, char *argv[]) |
| 581 | { |
| 582 | printf(help_msg, VERSION, argv[0]); |
| 583 | return 0; |
| 584 | } |
| 585 | |
| 586 | static int nfacct_cmd_restore(int argc, char *argv[]) |
| 587 | { |
| 588 | uint64_t pkts, bytes; |
| 589 | char name[512]; |
| 590 | char buffer[512]; |
| 591 | int ret; |
| 592 | while (fgets(buffer, sizeof(buffer), stdin)) { |
| 593 | char *semicolon = strchr(buffer, ';'); |
| 594 | if (semicolon == NULL) { |
| 595 | nfacct_perror("invalid line"); |
| 596 | return -1; |
| 597 | } |
| 598 | *semicolon = 0; |
| 599 | ret = sscanf(buffer, "{ pkts = %llu, bytes = %llu } = %s", |
| 600 | &pkts, &bytes, name); |
| 601 | if (ret != 3) { |
| 602 | nfacct_perror("error reading input"); |
| 603 | return -1; |
| 604 | } |
| 605 | if ((ret = _nfacct_cmd_add(name, pkts, bytes)) != 0) |
| 606 | return ret; |
| 607 | |
| 608 | } |
| 609 | return 0; |
| 610 | } |