src/journal-remote/journal-upload.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <curl/curl.h>
   4 #include <fcntl.h>
   5 #include <getopt.h>
   6 #include <stdio.h>
   7 #include <sys/stat.h>
   8
   9 #include "sd-daemon.h"
  10
  11 #include "alloc-util.h"
  12 #include "build.h"
  13 #include "conf-parser.h"
  14 #include "daemon-util.h"
  15 #include "def.h"
  16 #include "env-file.h"
  17 #include "fd-util.h"
  18 #include "fileio.h"
  19 #include "format-util.h"
  20 #include "glob-util.h"
  21 #include "journal-upload.h"
  22 #include "log.h"
  23 #include "main-func.h"
  24 #include "mkdir.h"
  25 #include "parse-argument.h"
  26 #include "parse-util.h"
  27 #include "path-util.h"
  28 #include "pretty-print.h"
  29 #include "process-util.h"
  30 #include "rlimit-util.h"
  31 #include "sigbus.h"
  32 #include "signal-util.h"
  33 #include "string-util.h"
  34 #include "strv.h"
  35 #include "tmpfile-util.h"
  36 #include "util.h"
  37
  38 #define PRIV_KEY_FILE CERTIFICATE_ROOT "/private/journal-upload.pem"
  39 #define CERT_FILE     CERTIFICATE_ROOT "/certs/journal-upload.pem"
  40 #define TRUST_FILE    CERTIFICATE_ROOT "/ca/trusted.pem"
  41 #define DEFAULT_PORT  19532
  42
  43 static const char* arg_url = NULL;
  44 static const char *arg_key = NULL;
  45 static const char *arg_cert = NULL;
  46 static const char *arg_trust = NULL;
  47 static const char *arg_directory = NULL;
  48 static char **arg_file = NULL;
  49 static const char *arg_cursor = NULL;
  50 static bool arg_after_cursor = false;
  51 static int arg_journal_type = 0;
  52 static const char *arg_machine = NULL;
  53 static bool arg_merge = false;
  54 static int arg_follow = -1;
  55 static const char *arg_save_state = NULL;
  56
  57 static void close_fd_input(Uploader *u);
  58
  59 #define SERVER_ANSWER_KEEP 2048
  60
  61 #define STATE_FILE "/var/lib/systemd/journal-upload/state"
  62
  63 #define easy_setopt(curl, opt, value, level, cmd)                       \
  64         do {                                                            \
  65                 code = curl_easy_setopt(curl, opt, value);              \
  66                 if (code) {                                             \
  67                         log_full(level,                                 \
  68                                  "curl_easy_setopt " #opt " failed: %s", \
  69                                   curl_easy_strerror(code));            \
  70                         cmd;                                            \
  71                 }                                                       \
  72         } while (0)
  73
  74 static size_t output_callback(char *buf,
  75                               size_t size,
  76                               size_t nmemb,
  77                               void *userp) {
  78         Uploader *u = userp;
  79
  80         assert(u);
  81
  82         log_debug("The server answers (%zu bytes): %.*s",
  83                   size*nmemb, (int)(size*nmemb), buf);
  84
  85         if (nmemb && !u->answer) {
  86                 u->answer = strndup(buf, size*nmemb);
  87                 if (!u->answer)
  88                         log_warning("Failed to store server answer (%zu bytes): out of memory", size*nmemb);
  89         }
  90
  91         return size * nmemb;
  92 }
  93
  94 static int check_cursor_updating(Uploader *u) {
  95         _cleanup_free_ char *temp_path = NULL;
  96         _cleanup_fclose_ FILE *f = NULL;
  97         int r;
  98
  99         if (!u->state_file)
 100                 return 0;
 101
 102         r = mkdir_parents(u->state_file, 0755);
 103         if (r < 0)
 104                 return log_error_errno(r, "Cannot create parent directory of state file %s: %m",
 105                                        u->state_file);
 106
 107         r = fopen_temporary(u->state_file, &f, &temp_path);
 108         if (r < 0)
 109                 return log_error_errno(r, "Cannot save state to %s: %m",
 110                                        u->state_file);
 111         (void) unlink(temp_path);
 112
 113         return 0;
 114 }
 115
 116 static int update_cursor_state(Uploader *u) {
 117         _cleanup_free_ char *temp_path = NULL;
 118         _cleanup_fclose_ FILE *f = NULL;
 119         int r;
 120
 121         if (!u->state_file || !u->last_cursor)
 122                 return 0;
 123
 124         r = fopen_temporary(u->state_file, &f, &temp_path);
 125         if (r < 0)
 126                 goto fail;
 127
 128         fprintf(f,
 129                 "# This is private data. Do not parse.\n"
 130                 "LAST_CURSOR=%s\n",
 131                 u->last_cursor);
 132
 133         r = fflush_and_check(f);
 134         if (r < 0)
 135                 goto fail;
 136
 137         if (rename(temp_path, u->state_file) < 0) {
 138                 r = -errno;
 139                 goto fail;
 140         }
 141
 142         return 0;
 143
 144 fail:
 145         if (temp_path)
 146                 (void) unlink(temp_path);
 147
 148         (void) unlink(u->state_file);
 149
 150         return log_error_errno(r, "Failed to save state %s: %m", u->state_file);
 151 }
 152
 153 static int load_cursor_state(Uploader *u) {
 154         int r;
 155
 156         if (!u->state_file)
 157                 return 0;
 158
 159         r = parse_env_file(NULL, u->state_file, "LAST_CURSOR", &u->last_cursor);
 160         if (r == -ENOENT)
 161                 log_debug("State file %s is not present.", u->state_file);
 162         else if (r < 0)
 163                 return log_error_errno(r, "Failed to read state file %s: %m",
 164                                        u->state_file);
 165         else
 166                 log_debug("Last cursor was %s", u->last_cursor);
 167
 168         return 0;
 169 }
 170
 171 int start_upload(Uploader *u,
 172                  size_t (*input_callback)(void *ptr,
 173                                           size_t size,
 174                                           size_t nmemb,
 175                                           void *userdata),
 176                  void *data) {
 177         CURLcode code;
 178
 179         assert(u);
 180         assert(input_callback);
 181
 182         if (!u->header) {
 183                 struct curl_slist *h;
 184
 185                 h = curl_slist_append(NULL, "Content-Type: application/vnd.fdo.journal");
 186                 if (!h)
 187                         return log_oom();
 188
 189                 h = curl_slist_append(h, "Transfer-Encoding: chunked");
 190                 if (!h) {
 191                         curl_slist_free_all(h);
 192                         return log_oom();
 193                 }
 194
 195                 h = curl_slist_append(h, "Accept: text/plain");
 196                 if (!h) {
 197                         curl_slist_free_all(h);
 198                         return log_oom();
 199                 }
 200
 201                 u->header = h;
 202         }
 203
 204         if (!u->easy) {
 205                 CURL *curl;
 206
 207                 curl = curl_easy_init();
 208                 if (!curl)
 209                         return log_error_errno(SYNTHETIC_ERRNO(ENOSR),
 210                                                "Call to curl_easy_init failed.");
 211
 212                 /* tell it to POST to the URL */
 213                 easy_setopt(curl, CURLOPT_POST, 1L,
 214                             LOG_ERR, return -EXFULL);
 215
 216                 easy_setopt(curl, CURLOPT_ERRORBUFFER, u->error,
 217                             LOG_ERR, return -EXFULL);
 218
 219                 /* set where to write to */
 220                 easy_setopt(curl, CURLOPT_WRITEFUNCTION, output_callback,
 221                             LOG_ERR, return -EXFULL);
 222
 223                 easy_setopt(curl, CURLOPT_WRITEDATA, data,
 224                             LOG_ERR, return -EXFULL);
 225
 226                 /* set where to read from */
 227                 easy_setopt(curl, CURLOPT_READFUNCTION, input_callback,
 228                             LOG_ERR, return -EXFULL);
 229
 230                 easy_setopt(curl, CURLOPT_READDATA, data,
 231                             LOG_ERR, return -EXFULL);
 232
 233                 /* use our special own mime type and chunked transfer */
 234                 easy_setopt(curl, CURLOPT_HTTPHEADER, u->header,
 235                             LOG_ERR, return -EXFULL);
 236
 237                 if (DEBUG_LOGGING)
 238                         /* enable verbose for easier tracing */
 239                         easy_setopt(curl, CURLOPT_VERBOSE, 1L, LOG_WARNING, );
 240
 241                 easy_setopt(curl, CURLOPT_USERAGENT,
 242                             "systemd-journal-upload " GIT_VERSION,
 243                             LOG_WARNING, );
 244
 245                 if (!streq_ptr(arg_key, "-") && (arg_key || startswith(u->url, "https://"))) {
 246                         easy_setopt(curl, CURLOPT_SSLKEY, arg_key ?: PRIV_KEY_FILE,
 247                                     LOG_ERR, return -EXFULL);
 248                         easy_setopt(curl, CURLOPT_SSLCERT, arg_cert ?: CERT_FILE,
 249                                     LOG_ERR, return -EXFULL);
 250                 }
 251
 252                 if (STRPTR_IN_SET(arg_trust, "-", "all"))
 253                         easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0,
 254                                     LOG_ERR, return -EUCLEAN);
 255                 else if (arg_trust || startswith(u->url, "https://"))
 256                         easy_setopt(curl, CURLOPT_CAINFO, arg_trust ?: TRUST_FILE,
 257                                     LOG_ERR, return -EXFULL);
 258
 259                 if (arg_key || arg_trust)
 260                         easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1,
 261                                     LOG_WARNING, );
 262
 263                 u->easy = curl;
 264         } else {
 265                 /* truncate the potential old error message */
 266                 u->error[0] = '\0';
 267
 268                 free(u->answer);
 269                 u->answer = 0;
 270         }
 271
 272         /* upload to this place */
 273         code = curl_easy_setopt(u->easy, CURLOPT_URL, u->url);
 274         if (code)
 275                 return log_error_errno(SYNTHETIC_ERRNO(EXFULL),
 276                                        "curl_easy_setopt CURLOPT_URL failed: %s",
 277                                        curl_easy_strerror(code));
 278
 279         u->uploading = true;
 280
 281         return 0;
 282 }
 283
 284 static size_t fd_input_callback(void *buf, size_t size, size_t nmemb, void *userp) {
 285         Uploader *u = userp;
 286         ssize_t n;
 287
 288         assert(u);
 289         assert(nmemb < SSIZE_MAX / size);
 290
 291         if (u->input < 0)
 292                 return 0;
 293
 294         assert(!size_multiply_overflow(size, nmemb));
 295
 296         n = read(u->input, buf, size * nmemb);
 297         log_debug("%s: allowed %zu, read %zd", __func__, size*nmemb, n);
 298         if (n > 0)
 299                 return n;
 300
 301         u->uploading = false;
 302         if (n < 0) {
 303                 log_error_errno(errno, "Aborting transfer after read error on input: %m.");
 304                 return CURL_READFUNC_ABORT;
 305         }
 306
 307         log_debug("Reached EOF");
 308         close_fd_input(u);
 309         return 0;
 310 }
 311
 312 static void close_fd_input(Uploader *u) {
 313         assert(u);
 314
 315         u->input = safe_close(u->input);
 316         u->timeout = 0;
 317 }
 318
 319 static int dispatch_fd_input(sd_event_source *event,
 320                              int fd,
 321                              uint32_t revents,
 322                              void *userp) {
 323         Uploader *u = userp;
 324
 325         assert(u);
 326         assert(fd >= 0);
 327
 328         if (revents & EPOLLHUP) {
 329                 log_debug("Received HUP");
 330                 close_fd_input(u);
 331                 return 0;
 332         }
 333
 334         if (!(revents & EPOLLIN)) {
 335                 log_warning("Unexpected poll event %"PRIu32".", revents);
 336                 return -EINVAL;
 337         }
 338
 339         if (u->uploading) {
 340                 log_warning("dispatch_fd_input called when uploading, ignoring.");
 341                 return 0;
 342         }
 343
 344         return start_upload(u, fd_input_callback, u);
 345 }
 346
 347 static int open_file_for_upload(Uploader *u, const char *filename) {
 348         int fd, r = 0;
 349
 350         if (streq(filename, "-"))
 351                 fd = STDIN_FILENO;
 352         else {
 353                 fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOCTTY);
 354                 if (fd < 0)
 355                         return log_error_errno(errno, "Failed to open %s: %m", filename);
 356         }
 357
 358         u->input = fd;
 359
 360         if (arg_follow != 0) {
 361                 r = sd_event_add_io(u->events, &u->input_event,
 362                                     fd, EPOLLIN, dispatch_fd_input, u);
 363                 if (r < 0) {
 364                         if (r != -EPERM || arg_follow > 0)
 365                                 return log_error_errno(r, "Failed to register input event: %m");
 366
 367                         /* Normal files should just be consumed without polling. */
 368                         r = start_upload(u, fd_input_callback, u);
 369                 }
 370         }
 371
 372         return r;
 373 }
 374
 375 static int dispatch_sigterm(sd_event_source *event,
 376                             const struct signalfd_siginfo *si,
 377                             void *userdata) {
 378         Uploader *u = userdata;
 379
 380         assert(u);
 381
 382         log_received_signal(LOG_INFO, si);
 383
 384         close_fd_input(u);
 385         close_journal_input(u);
 386
 387         sd_event_exit(u->events, 0);
 388         return 0;
 389 }
 390
 391 static int setup_signals(Uploader *u) {
 392         int r;
 393
 394         assert(u);
 395
 396         assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, -1) >= 0);
 397
 398         r = sd_event_add_signal(u->events, &u->sigterm_event, SIGTERM, dispatch_sigterm, u);
 399         if (r < 0)
 400                 return r;
 401
 402         r = sd_event_add_signal(u->events, &u->sigint_event, SIGINT, dispatch_sigterm, u);
 403         if (r < 0)
 404                 return r;
 405
 406         return 0;
 407 }
 408
 409 static int setup_uploader(Uploader *u, const char *url, const char *state_file) {
 410         int r;
 411         const char *host, *proto = "";
 412
 413         assert(u);
 414         assert(url);
 415
 416         *u = (Uploader) {
 417                 .input = -1,
 418         };
 419
 420         host = STARTSWITH_SET(url, "http://", "https://");
 421         if (!host) {
 422                 host = url;
 423                 proto = "https://";
 424         }
 425
 426         if (strchr(host, ':'))
 427                 u->url = strjoin(proto, url, "/upload");
 428         else {
 429                 char *t;
 430                 size_t x;
 431
 432                 t = strdupa(url);
 433                 x = strlen(t);
 434                 while (x > 0 && t[x - 1] == '/')
 435                         t[x - 1] = '\0';
 436
 437                 u->url = strjoin(proto, t, ":" STRINGIFY(DEFAULT_PORT), "/upload");
 438         }
 439         if (!u->url)
 440                 return log_oom();
 441
 442         u->state_file = state_file;
 443
 444         r = sd_event_default(&u->events);
 445         if (r < 0)
 446                 return log_error_errno(r, "sd_event_default failed: %m");
 447
 448         r = setup_signals(u);
 449         if (r < 0)
 450                 return log_error_errno(r, "Failed to set up signals: %m");
 451
 452         (void) sd_watchdog_enabled(false, &u->watchdog_usec);
 453
 454         return load_cursor_state(u);
 455 }
 456
 457 static void destroy_uploader(Uploader *u) {
 458         assert(u);
 459
 460         curl_easy_cleanup(u->easy);
 461         curl_slist_free_all(u->header);
 462         free(u->answer);
 463
 464         free(u->last_cursor);
 465         free(u->current_cursor);
 466
 467         free(u->url);
 468
 469         u->input_event = sd_event_source_unref(u->input_event);
 470
 471         close_fd_input(u);
 472         close_journal_input(u);
 473
 474         sd_event_source_unref(u->sigterm_event);
 475         sd_event_source_unref(u->sigint_event);
 476         sd_event_unref(u->events);
 477 }
 478
 479 static int perform_upload(Uploader *u) {
 480         CURLcode code;
 481         long status;
 482
 483         assert(u);
 484
 485         u->watchdog_timestamp = now(CLOCK_MONOTONIC);
 486         code = curl_easy_perform(u->easy);
 487         if (code) {
 488                 if (u->error[0])
 489                         log_error("Upload to %s failed: %.*s",
 490                                   u->url, (int) sizeof(u->error), u->error);
 491                 else
 492                         log_error("Upload to %s failed: %s",
 493                                   u->url, curl_easy_strerror(code));
 494                 return -EIO;
 495         }
 496
 497         code = curl_easy_getinfo(u->easy, CURLINFO_RESPONSE_CODE, &status);
 498         if (code)
 499                 return log_error_errno(SYNTHETIC_ERRNO(EUCLEAN),
 500                                        "Failed to retrieve response code: %s",
 501                                        curl_easy_strerror(code));
 502
 503         if (status >= 300)
 504                 return log_error_errno(SYNTHETIC_ERRNO(EIO),
 505                                        "Upload to %s failed with code %ld: %s",
 506                                        u->url, status, strna(u->answer));
 507         else if (status < 200)
 508                 return log_error_errno(SYNTHETIC_ERRNO(EIO),
 509                                        "Upload to %s finished with unexpected code %ld: %s",
 510                                        u->url, status, strna(u->answer));
 511         else
 512                 log_debug("Upload finished successfully with code %ld: %s",
 513                           status, strna(u->answer));
 514
 515         free_and_replace(u->last_cursor, u->current_cursor);
 516
 517         return update_cursor_state(u);
 518 }
 519
 520 static int config_parse_path_or_ignore(
 521                 const char *unit,
 522                 const char *filename,
 523                 unsigned line,
 524                 const char *section,
 525                 unsigned section_line,
 526                 const char *lvalue,
 527                 int ltype,
 528                 const char *rvalue,
 529                 void *data,
 530                 void *userdata) {
 531
 532         _cleanup_free_ char *n = NULL;
 533         bool fatal = ltype;
 534         char **s = data;
 535         int r;
 536
 537         assert(filename);
 538         assert(lvalue);
 539         assert(rvalue);
 540         assert(data);
 541
 542         if (isempty(rvalue))
 543                 goto finalize;
 544
 545         n = strdup(rvalue);
 546         if (!n)
 547                 return log_oom();
 548
 549         if (streq(n, "-"))
 550                 goto finalize;
 551
 552         r = path_simplify_and_warn(n, PATH_CHECK_ABSOLUTE | (fatal ? PATH_CHECK_FATAL : 0), unit, filename, line, lvalue);
 553         if (r < 0)
 554                 return fatal ? -ENOEXEC : 0;
 555
 556 finalize:
 557         return free_and_replace(*s, n);
 558 }
 559
 560 static int parse_config(void) {
 561         const ConfigTableItem items[] = {
 562                 { "Upload",  "URL",                    config_parse_string,         0, &arg_url    },
 563                 { "Upload",  "ServerKeyFile",          config_parse_path_or_ignore, 0, &arg_key    },
 564                 { "Upload",  "ServerCertificateFile",  config_parse_path_or_ignore, 0, &arg_cert   },
 565                 { "Upload",  "TrustedCertificateFile", config_parse_path_or_ignore, 0, &arg_trust  },
 566                 {}
 567         };
 568
 569         return config_parse_many_nulstr(
 570                         PKGSYSCONFDIR "/journal-upload.conf",
 571                         CONF_PATHS_NULSTR("systemd/journal-upload.conf.d"),
 572                         "Upload\0",
 573                         config_item_table_lookup, items,
 574                         CONFIG_PARSE_WARN,
 575                         NULL,
 576                         NULL);
 577 }
 578
 579 static int help(void) {
 580         _cleanup_free_ char *link = NULL;
 581         int r;
 582
 583         r = terminal_urlify_man("systemd-journal-upload.service", "8", &link);
 584         if (r < 0)
 585                 return log_oom();
 586
 587         printf("%s -u URL {FILE|-}...\n\n"
 588                "Upload journal events to a remote server.\n\n"
 589                "  -h --help                 Show this help\n"
 590                "     --version              Show package version\n"
 591                "  -u --url=URL              Upload to this address (default port "
 592                                             STRINGIFY(DEFAULT_PORT) ")\n"
 593                "     --key=FILENAME         Specify key in PEM format (default:\n"
 594                "                            \"" PRIV_KEY_FILE "\")\n"
 595                "     --cert=FILENAME        Specify certificate in PEM format (default:\n"
 596                "                            \"" CERT_FILE "\")\n"
 597                "     --trust=FILENAME|all   Specify CA certificate or disable checking (default:\n"
 598                "                            \"" TRUST_FILE "\")\n"
 599                "     --system               Use the system journal\n"
 600                "     --user                 Use the user journal for the current user\n"
 601                "  -m --merge                Use  all available journals\n"
 602                "  -M --machine=CONTAINER    Operate on local container\n"
 603                "  -D --directory=PATH       Use journal files from directory\n"
 604                "     --file=PATH            Use this journal file\n"
 605                "     --cursor=CURSOR        Start at the specified cursor\n"
 606                "     --after-cursor=CURSOR  Start after the specified cursor\n"
 607                "     --follow[=BOOL]        Do [not] wait for input\n"
 608                "     --save-state[=FILE]    Save uploaded cursors (default \n"
 609                "                            " STATE_FILE ")\n"
 610                "\nSee the %s for details.\n",
 611                program_invocation_short_name,
 612                link);
 613
 614         return 0;
 615 }
 616
 617 static int parse_argv(int argc, char *argv[]) {
 618         enum {
 619                 ARG_VERSION = 0x100,
 620                 ARG_KEY,
 621                 ARG_CERT,
 622                 ARG_TRUST,
 623                 ARG_USER,
 624                 ARG_SYSTEM,
 625                 ARG_FILE,
 626                 ARG_CURSOR,
 627                 ARG_AFTER_CURSOR,
 628                 ARG_FOLLOW,
 629                 ARG_SAVE_STATE,
 630         };
 631
 632         static const struct option options[] = {
 633                 { "help",         no_argument,       NULL, 'h'                },
 634                 { "version",      no_argument,       NULL, ARG_VERSION        },
 635                 { "url",          required_argument, NULL, 'u'                },
 636                 { "key",          required_argument, NULL, ARG_KEY            },
 637                 { "cert",         required_argument, NULL, ARG_CERT           },
 638                 { "trust",        required_argument, NULL, ARG_TRUST          },
 639                 { "system",       no_argument,       NULL, ARG_SYSTEM         },
 640                 { "user",         no_argument,       NULL, ARG_USER           },
 641                 { "merge",        no_argument,       NULL, 'm'                },
 642                 { "machine",      required_argument, NULL, 'M'                },
 643                 { "directory",    required_argument, NULL, 'D'                },
 644                 { "file",         required_argument, NULL, ARG_FILE           },
 645                 { "cursor",       required_argument, NULL, ARG_CURSOR         },
 646                 { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR   },
 647                 { "follow",       optional_argument, NULL, ARG_FOLLOW         },
 648                 { "save-state",   optional_argument, NULL, ARG_SAVE_STATE     },
 649                 {}
 650         };
 651
 652         int c, r;
 653
 654         assert(argc >= 0);
 655         assert(argv);
 656
 657         opterr = 0;
 658
 659         while ((c = getopt_long(argc, argv, "hu:mM:D:", options, NULL)) >= 0)
 660                 switch(c) {
 661                 case 'h':
 662                         return help();
 663
 664                 case ARG_VERSION:
 665                         return version();
 666
 667                 case 'u':
 668                         if (arg_url)
 669                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 670                                                        "cannot use more than one --url");
 671
 672                         arg_url = optarg;
 673                         break;
 674
 675                 case ARG_KEY:
 676                         if (arg_key)
 677                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 678                                                        "cannot use more than one --key");
 679
 680                         arg_key = optarg;
 681                         break;
 682
 683                 case ARG_CERT:
 684                         if (arg_cert)
 685                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 686                                                        "cannot use more than one --cert");
 687
 688                         arg_cert = optarg;
 689                         break;
 690
 691                 case ARG_TRUST:
 692                         if (arg_trust)
 693                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 694                                                        "cannot use more than one --trust");
 695
 696                         arg_trust = optarg;
 697                         break;
 698
 699                 case ARG_SYSTEM:
 700                         arg_journal_type |= SD_JOURNAL_SYSTEM;
 701                         break;
 702
 703                 case ARG_USER:
 704                         arg_journal_type |= SD_JOURNAL_CURRENT_USER;
 705                         break;
 706
 707                 case 'm':
 708                         arg_merge = true;
 709                         break;
 710
 711                 case 'M':
 712                         if (arg_machine)
 713                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 714                                                        "cannot use more than one --machine/-M");
 715
 716                         arg_machine = optarg;
 717                         break;
 718
 719                 case 'D':
 720                         if (arg_directory)
 721                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 722                                                        "cannot use more than one --directory/-D");
 723
 724                         arg_directory = optarg;
 725                         break;
 726
 727                 case ARG_FILE:
 728                         r = glob_extend(&arg_file, optarg, GLOB_NOCHECK);
 729                         if (r < 0)
 730                                 return log_error_errno(r, "Failed to add paths: %m");
 731                         break;
 732
 733                 case ARG_CURSOR:
 734                         if (arg_cursor)
 735                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 736                                                        "cannot use more than one --cursor/--after-cursor");
 737
 738                         arg_cursor = optarg;
 739                         break;
 740
 741                 case ARG_AFTER_CURSOR:
 742                         if (arg_cursor)
 743                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 744                                                        "cannot use more than one --cursor/--after-cursor");
 745
 746                         arg_cursor = optarg;
 747                         arg_after_cursor = true;
 748                         break;
 749
 750                 case ARG_FOLLOW:
 751                         r = parse_boolean_argument("--follow", optarg, NULL);
 752                         if (r < 0)
 753                                 return r;
 754                         arg_follow = r;
 755                         break;
 756
 757                 case ARG_SAVE_STATE:
 758                         arg_save_state = optarg ?: STATE_FILE;
 759                         break;
 760
 761                 case '?':
 762                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 763                                                "Unknown option %s.",
 764                                                argv[optind - 1]);
 765
 766                 case ':':
 767                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 768                                                "Missing argument to %s.",
 769                                                argv[optind - 1]);
 770
 771                 default:
 772                         assert_not_reached("Unhandled option code.");
 773                 }
 774
 775         if (!arg_url)
 776                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 777                                        "Required --url/-u option missing.");
 778
 779         if (!!arg_key != !!arg_cert)
 780                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 781                                        "Options --key and --cert must be used together.");
 782
 783         if (optind < argc && (arg_directory || arg_file || arg_machine || arg_journal_type))
 784                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 785                                        "Input arguments make no sense with journal input.");
 786
 787         return 1;
 788 }
 789
 790 static int open_journal(sd_journal **j) {
 791         int r;
 792
 793         if (arg_directory)
 794                 r = sd_journal_open_directory(j, arg_directory, arg_journal_type);
 795         else if (arg_file)
 796                 r = sd_journal_open_files(j, (const char**) arg_file, 0);
 797         else if (arg_machine) {
 798 #pragma GCC diagnostic push
 799 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 800                 /* FIXME: replace with D-Bus call OpenMachineRootDirectory() so that things also work with raw disk images */
 801                 r = sd_journal_open_container(j, arg_machine, 0);
 802 #pragma GCC diagnostic pop
 803         } else
 804                 r = sd_journal_open(j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type);
 805         if (r < 0)
 806                 log_error_errno(r, "Failed to open %s: %m",
 807                                 arg_directory ? arg_directory : arg_file ? "files" : "journal");
 808         return r;
 809 }
 810
 811 static int run(int argc, char **argv) {
 812         _cleanup_(destroy_uploader) Uploader u = {};
 813         _cleanup_(notify_on_cleanup) const char *notify_message = NULL;
 814         bool use_journal;
 815         int r;
 816
 817         log_show_color(true);
 818         log_parse_environment();
 819
 820         /* The journal merging logic potentially needs a lot of fds. */
 821         (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE);
 822
 823         r = parse_config();
 824         if (r < 0)
 825                 return r;
 826
 827         r = parse_argv(argc, argv);
 828         if (r <= 0)
 829                 return r;
 830
 831         sigbus_install();
 832
 833         r = setup_uploader(&u, arg_url, arg_save_state);
 834         if (r < 0)
 835                 return r;
 836
 837         sd_event_set_watchdog(u.events, true);
 838
 839         r = check_cursor_updating(&u);
 840         if (r < 0)
 841                 return r;
 842
 843         log_debug("%s running as pid "PID_FMT,
 844                   program_invocation_short_name, getpid_cached());
 845
 846         use_journal = optind >= argc;
 847         if (use_journal) {
 848                 sd_journal *j;
 849                 r = open_journal(&j);
 850                 if (r < 0)
 851                         return r;
 852                 r = open_journal_for_upload(&u, j,
 853                                             arg_cursor ?: u.last_cursor,
 854                                             arg_cursor ? arg_after_cursor : true,
 855                                             arg_follow != 0);
 856                 if (r < 0)
 857                         return r;
 858         }
 859
 860         notify_message = notify_start("READY=1\n"
 861                                       "STATUS=Processing input...",
 862                                       NOTIFY_STOPPING);
 863
 864         for (;;) {
 865                 r = sd_event_get_state(u.events);
 866                 if (r < 0)
 867                         return r;
 868                 if (r == SD_EVENT_FINISHED)
 869                         return 0;
 870
 871                 if (use_journal) {
 872                         if (!u.journal)
 873                                 return 0;
 874
 875                         r = check_journal_input(&u);
 876                 } else if (u.input < 0 && !use_journal) {
 877                         if (optind >= argc)
 878                                 return 0;
 879
 880                         log_debug("Using %s as input.", argv[optind]);
 881                         r = open_file_for_upload(&u, argv[optind++]);
 882                 }
 883                 if (r < 0)
 884                         return r;
 885
 886                 if (u.uploading) {
 887                         r = perform_upload(&u);
 888                         if (r < 0)
 889                                 return r;
 890                 }
 891
 892                 r = sd_event_run(u.events, u.timeout);
 893                 if (r < 0)
 894                         return log_error_errno(r, "Failed to run event loop: %m");
 895         }
 896 }
 897
 898 DEFINE_MAIN_FUNCTION(run);