1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2012 Zbigniew Jędrzejewski-Szmek
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
27 #include <sys/prctl.h>
28 #include <sys/socket.h>
30 #include <sys/types.h>
34 #include "sd-daemon.h"
35 #include "journal-file.h"
36 #include "journald-native.h"
37 #include "socket-util.h"
43 #include "conf-parser.h"
44 #include "siphash24.h"
47 #include <gnutls/gnutls.h>
50 #include "journal-remote.h"
51 #include "journal-remote-write.h"
53 #define REMOTE_JOURNAL_PATH "/var/log/journal/remote"
55 #define KEY_FILE CERTIFICATE_ROOT "/private/journal-remote.pem"
56 #define CERT_FILE CERTIFICATE_ROOT "/certs/journal-remote.pem"
57 #define TRUST_FILE CERTIFICATE_ROOT "/ca/trusted.pem"
59 static char* arg_url = NULL;
60 static char* arg_getter = NULL;
61 static char* arg_listen_raw = NULL;
62 static char* arg_listen_http = NULL;
63 static char* arg_listen_https = NULL;
64 static char** arg_files = NULL;
65 static int arg_compress = true;
66 static int arg_seal = false;
67 static int http_socket = -1, https_socket = -1;
68 static char** arg_gnutls_log = NULL;
70 static JournalWriteSplitMode arg_split_mode = JOURNAL_WRITE_SPLIT_HOST;
71 static char* arg_output = NULL;
73 static char *arg_key = NULL;
74 static char *arg_cert = NULL;
75 static char *arg_trust = NULL;
76 static bool arg_trust_all = false;
78 /**********************************************************************
79 **********************************************************************
80 **********************************************************************/
82 static int spawn_child(const char* child, char** argv) {
84 pid_t parent_pid, child_pid;
88 log_error("Failed to create pager pipe: %m");
92 parent_pid = getpid();
97 log_error("Failed to fork: %m");
103 if (child_pid == 0) {
104 r = dup2(fd[1], STDOUT_FILENO);
106 log_error("Failed to dup pipe to stdout: %m");
112 /* Make sure the child goes away when the parent dies */
113 if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
116 /* Check whether our parent died before we were able
117 * to set the death signal */
118 if (getppid() != parent_pid)
122 log_error("Failed to exec child %s: %m", child);
128 log_warning("Failed to close write end of pipe: %m");
133 static int spawn_curl(const char* url) {
134 char **argv = STRV_MAKE("curl",
135 "-HAccept: application/vnd.fdo.journal",
141 r = spawn_child("curl", argv);
143 log_error("Failed to spawn curl: %m");
147 static int spawn_getter(const char *getter, const char *url) {
149 _cleanup_strv_free_ char **words = NULL;
152 words = strv_split_quoted(getter);
156 r = strv_extend(&words, url);
158 log_error("Failed to create command line: %s", strerror(-r));
162 r = spawn_child(words[0], words);
164 log_error("Failed to spawn getter %s: %m", getter);
169 #define filename_escape(s) xescape((s), "/ ")
171 static int open_output(Writer *w, const char* host) {
172 _cleanup_free_ char *_output = NULL;
176 switch (arg_split_mode) {
177 case JOURNAL_WRITE_SPLIT_NONE:
178 output = arg_output ?: REMOTE_JOURNAL_PATH "/remote.journal";
181 case JOURNAL_WRITE_SPLIT_HOST: {
182 _cleanup_free_ char *name;
186 name = filename_escape(host);
190 r = asprintf(&_output, "%s/remote-%s.journal",
191 arg_output ?: REMOTE_JOURNAL_PATH,
201 assert_not_reached("what?");
204 r = journal_file_open_reliably(output,
205 O_RDWR|O_CREAT, 0640,
206 arg_compress, arg_seal,
211 log_error("Failed to open output journal %s: %s",
212 output, strerror(-r));
214 log_info("Opened output file %s", w->journal->path);
218 /**********************************************************************
219 **********************************************************************
220 **********************************************************************/
222 static int init_writer_hashmap(RemoteServer *s) {
223 static const struct {
224 hash_func_t hash_func;
225 compare_func_t compare_func;
227 [JOURNAL_WRITE_SPLIT_NONE] = {trivial_hash_func,
228 trivial_compare_func},
229 [JOURNAL_WRITE_SPLIT_HOST] = {string_hash_func,
230 string_compare_func},
233 assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(functions));
235 s->writers = hashmap_new(functions[arg_split_mode].hash_func,
236 functions[arg_split_mode].compare_func);
243 static int get_writer(RemoteServer *s, const char *host,
246 _cleanup_writer_unref_ Writer *w = NULL;
249 switch(arg_split_mode) {
250 case JOURNAL_WRITE_SPLIT_NONE:
251 key = "one and only";
254 case JOURNAL_WRITE_SPLIT_HOST:
260 assert_not_reached("what split mode?");
263 w = hashmap_get(s->writers, key);
271 if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST) {
272 w->hashmap_key = strdup(key);
277 r = open_output(w, host);
281 r = hashmap_put(s->writers, w->hashmap_key ?: key, w);
291 /**********************************************************************
292 **********************************************************************
293 **********************************************************************/
295 /* This should go away as soon as µhttpd allows state to be passed around. */
296 static RemoteServer *server;
298 static int dispatch_raw_source_event(sd_event_source *event,
302 static int dispatch_raw_connection_event(sd_event_source *event,
306 static int dispatch_http_event(sd_event_source *event,
311 static int get_source_for_fd(RemoteServer *s,
312 int fd, char *name, RemoteSource **source) {
319 if (!GREEDY_REALLOC0(s->sources, s->sources_size, fd + 1))
322 r = get_writer(s, name, &writer);
324 log_warning("Failed to get writer for source %s: %s",
329 if (s->sources[fd] == NULL) {
330 s->sources[fd] = source_new(fd, false, name, writer);
331 if (!s->sources[fd]) {
332 writer_unref(writer);
339 *source = s->sources[fd];
343 static int remove_source(RemoteServer *s, int fd) {
344 RemoteSource *source;
347 assert(fd >= 0 && fd < (ssize_t) s->sources_size);
349 source = s->sources[fd];
351 /* this closes fd too */
353 s->sources[fd] = NULL;
360 static int add_source(RemoteServer *s, int fd, char* name, bool own_name) {
362 RemoteSource *source;
375 r = get_source_for_fd(s, fd, name, &source);
377 log_error("Failed to create source for fd:%d (%s): %s",
378 fd, name, strerror(-r));
382 r = sd_event_add_io(s->events, &source->event,
383 fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI,
384 dispatch_raw_source_event, s);
386 log_error("Failed to register event source for fd:%d: %s",
391 return 1; /* work to do */
394 remove_source(s, fd);
398 static int add_raw_socket(RemoteServer *s, int fd) {
401 r = sd_event_add_io(s->events, &s->listen_event,
403 dispatch_raw_connection_event, s);
413 static int setup_raw_socket(RemoteServer *s, const char *address) {
416 fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);
420 return add_raw_socket(s, fd);
423 /**********************************************************************
424 **********************************************************************
425 **********************************************************************/
427 static RemoteSource *request_meta(void **connection_cls, int fd, char *hostname) {
428 RemoteSource *source;
432 assert(connection_cls);
434 return *connection_cls;
436 r = get_writer(server, hostname, &writer);
438 log_warning("Failed to get writer for source %s: %s",
439 hostname, strerror(-r));
443 source = source_new(fd, true, hostname, writer);
446 writer_unref(writer);
450 log_debug("Added RemoteSource as connection metadata %p", source);
452 *connection_cls = source;
456 static void request_meta_free(void *cls,
457 struct MHD_Connection *connection,
458 void **connection_cls,
459 enum MHD_RequestTerminationCode toe) {
462 assert(connection_cls);
465 log_debug("Cleaning up connection metadata %p", s);
467 *connection_cls = NULL;
470 static int process_http_upload(
471 struct MHD_Connection *connection,
472 const char *upload_data,
473 size_t *upload_data_size,
474 RemoteSource *source) {
476 bool finished = false;
482 log_debug("request_handler_upload: connection %p, %zu bytes",
483 connection, *upload_data_size);
485 if (*upload_data_size) {
486 log_debug("Received %zu bytes", *upload_data_size);
488 r = push_data(source, upload_data, *upload_data_size);
490 return mhd_respond_oom(connection);
492 *upload_data_size = 0;
497 r = process_source(source, arg_compress, arg_seal);
498 if (r == -EAGAIN || r == -EWOULDBLOCK)
501 log_warning("Failed to process data for connection %p", connection);
503 return mhd_respondf(connection,
504 MHD_HTTP_REQUEST_ENTITY_TOO_LARGE,
505 "Entry is too large, maximum is %u bytes.\n",
508 return mhd_respondf(connection,
509 MHD_HTTP_UNPROCESSABLE_ENTITY,
510 "Processing failed: %s.", strerror(-r));
517 /* The upload is finished */
519 remaining = source_non_empty(source);
521 log_warning("Premature EOFbyte. %zu bytes lost.", remaining);
522 return mhd_respondf(connection, MHD_HTTP_EXPECTATION_FAILED,
523 "Premature EOF. %zu bytes of trailing data not processed.",
527 return mhd_respond(connection, MHD_HTTP_ACCEPTED, "OK.\n");
530 static int request_handler(
532 struct MHD_Connection *connection,
536 const char *upload_data,
537 size_t *upload_data_size,
538 void **connection_cls) {
542 _cleanup_free_ char *hostname = NULL;
545 assert(connection_cls);
549 log_debug("Handling a connection %s %s %s", method, url, version);
552 return process_http_upload(connection,
553 upload_data, upload_data_size,
556 if (!streq(method, "POST"))
557 return mhd_respond(connection, MHD_HTTP_METHOD_NOT_ACCEPTABLE,
558 "Unsupported method.\n");
560 if (!streq(url, "/upload"))
561 return mhd_respond(connection, MHD_HTTP_NOT_FOUND,
564 header = MHD_lookup_connection_value(connection,
565 MHD_HEADER_KIND, "Content-Type");
566 if (!header || !streq(header, "application/vnd.fdo.journal"))
567 return mhd_respond(connection, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE,
568 "Content-Type: application/vnd.fdo.journal"
572 const union MHD_ConnectionInfo *ci;
574 ci = MHD_get_connection_info(connection,
575 MHD_CONNECTION_INFO_CONNECTION_FD);
577 log_error("MHD_get_connection_info failed: cannot get remote fd");
578 return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
579 "Cannot check remote address");
587 if (server->check_trust) {
588 r = check_permissions(connection, &code, &hostname);
592 r = getnameinfo_pretty(fd, &hostname);
594 return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
595 "Cannot check remote hostname");
601 if (!request_meta(connection_cls, fd, hostname))
602 return respond_oom(connection);
607 static int setup_microhttpd_server(RemoteServer *s,
612 struct MHD_OptionItem opts[] = {
613 { MHD_OPTION_NOTIFY_COMPLETED, (intptr_t) request_meta_free},
614 { MHD_OPTION_EXTERNAL_LOGGER, (intptr_t) microhttpd_logger},
615 { MHD_OPTION_LISTEN_SOCKET, fd},
623 MHD_USE_PEDANTIC_CHECKS |
624 MHD_USE_EPOLL_LINUX_ONLY |
627 const union MHD_DaemonInfo *info;
633 r = fd_nonblock(fd, true);
635 log_error("Failed to make fd:%d nonblocking: %s", fd, strerror(-r));
642 opts[opts_pos++] = (struct MHD_OptionItem)
643 {MHD_OPTION_HTTPS_MEM_KEY, 0, (char*) key};
644 opts[opts_pos++] = (struct MHD_OptionItem)
645 {MHD_OPTION_HTTPS_MEM_CERT, 0, (char*) cert};
647 flags |= MHD_USE_SSL;
650 opts[opts_pos++] = (struct MHD_OptionItem)
651 {MHD_OPTION_HTTPS_MEM_TRUST, 0, (char*) trust};
654 d = new(MHDDaemonWrapper, 1);
658 d->fd = (uint64_t) fd;
660 d->daemon = MHD_start_daemon(flags, 0,
662 request_handler, NULL,
663 MHD_OPTION_ARRAY, opts,
666 log_error("Failed to start µhttp daemon");
671 log_debug("Started MHD %s daemon on fd:%d (wrapper @ %p)",
672 key ? "HTTPS" : "HTTP", fd, d);
675 info = MHD_get_daemon_info(d->daemon, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
677 log_error("µhttp returned NULL daemon info");
682 epoll_fd = info->listen_fd;
684 log_error("µhttp epoll fd is invalid");
689 r = sd_event_add_io(s->events, &d->event,
691 dispatch_http_event, d);
693 log_error("Failed to add event callback: %s", strerror(-r));
697 r = hashmap_ensure_allocated(&s->daemons, uint64_hash_func, uint64_compare_func);
703 r = hashmap_put(s->daemons, &d->fd, d);
705 log_error("Failed to add daemon to hashmap: %s", strerror(-r));
713 MHD_stop_daemon(d->daemon);
719 static int setup_microhttpd_socket(RemoteServer *s,
726 fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);
730 return setup_microhttpd_server(s, fd, key, cert, trust);
733 static int dispatch_http_event(sd_event_source *event,
737 MHDDaemonWrapper *d = userdata;
742 r = MHD_run(d->daemon);
744 log_error("MHD_run failed!");
745 // XXX: unregister daemon
749 return 1; /* work to do */
752 /**********************************************************************
753 **********************************************************************
754 **********************************************************************/
756 static int dispatch_sigterm(sd_event_source *event,
757 const struct signalfd_siginfo *si,
759 RemoteServer *s = userdata;
763 log_received_signal(LOG_INFO, si);
765 sd_event_exit(s->events, 0);
769 static int setup_signals(RemoteServer *s) {
775 assert_se(sigemptyset(&mask) == 0);
776 sigset_add_many(&mask, SIGINT, SIGTERM, -1);
777 assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
779 r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, dispatch_sigterm, s);
783 r = sd_event_add_signal(s->events, &s->sigint_event, SIGINT, dispatch_sigterm, s);
790 static int fd_fd(const char *spec) {
793 r = safe_atoi(spec, &fd);
801 static int remoteserver_init(RemoteServer *s,
811 if ((arg_listen_raw || arg_listen_http) && trust) {
812 log_error("Option --trust makes all non-HTTPS connections untrusted.");
816 sd_event_default(&s->events);
820 assert(server == NULL);
823 n = sd_listen_fds(true);
825 log_error("Failed to read listening file descriptors from environment: %s",
829 log_info("Received %d descriptors", n);
831 if (MAX(http_socket, https_socket) >= SD_LISTEN_FDS_START + n) {
832 log_error("Received fewer sockets than expected");
836 for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
837 if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {
838 log_info("Received a listening socket (fd:%d)", fd);
840 if (fd == http_socket)
841 r = setup_microhttpd_server(s, fd, NULL, NULL, NULL);
842 else if (fd == https_socket)
843 r = setup_microhttpd_server(s, fd, key, cert, trust);
845 r = add_raw_socket(s, fd);
846 } else if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {
849 r = getnameinfo_pretty(fd, &hostname);
851 log_error("Failed to retrieve remote name: %s", strerror(-r));
855 log_info("Received a connection socket (fd:%d) from %s", fd, hostname);
857 r = add_source(s, fd, hostname, true);
861 log_error("Unknown socket passed on fd:%d", fd);
867 log_error("Failed to register socket (fd:%d): %s",
874 const char *url, *hostname;
876 url = strappenda(arg_url, "/entries");
879 log_info("Spawning getter %s...", url);
880 fd = spawn_getter(arg_getter, url);
882 log_info("Spawning curl %s...", url);
883 fd = spawn_curl(url);
889 startswith(arg_url, "https://") ?:
890 startswith(arg_url, "http://") ?:
893 r = add_source(s, fd, (char*) hostname, false);
898 if (arg_listen_raw) {
899 log_info("Listening on a socket...");
900 r = setup_raw_socket(s, arg_listen_raw);
905 if (arg_listen_http) {
906 r = setup_microhttpd_socket(s, arg_listen_http, NULL, NULL, NULL);
911 if (arg_listen_https) {
912 r = setup_microhttpd_socket(s, arg_listen_https, key, cert, trust);
917 STRV_FOREACH(file, arg_files) {
918 const char *output_name;
920 if (streq(*file, "-")) {
921 log_info("Using standard input as source.");
924 output_name = "stdin";
926 log_info("Reading file %s...", *file);
928 fd = open(*file, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
930 log_error("Failed to open %s: %m", *file);
936 r = add_source(s, fd, (char*) output_name, false);
941 if (s->active == 0) {
942 log_error("Zarro sources specified");
946 r = init_writer_hashmap(s);
950 if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE) {
951 /* In this case we know what the writer will be
952 called, so we can create it and verify that we can
953 create output as expected. */
954 r = get_writer(s, NULL, &s->_single_writer);
962 static void server_destroy(RemoteServer *s) {
966 while ((d = hashmap_steal_first(s->daemons))) {
967 MHD_stop_daemon(d->daemon);
968 sd_event_source_unref(d->event);
972 hashmap_free(s->daemons);
974 assert(s->sources_size == 0 || s->sources);
975 for (i = 0; i < s->sources_size; i++)
979 writer_unref(s->_single_writer);
980 hashmap_free(s->writers);
982 sd_event_source_unref(s->sigterm_event);
983 sd_event_source_unref(s->sigint_event);
984 sd_event_source_unref(s->listen_event);
985 sd_event_unref(s->events);
987 /* fds that we're listening on remain open... */
990 /**********************************************************************
991 **********************************************************************
992 **********************************************************************/
994 static int dispatch_raw_source_event(sd_event_source *event,
999 RemoteServer *s = userdata;
1000 RemoteSource *source;
1003 assert(fd >= 0 && fd < (ssize_t) s->sources_size);
1004 source = s->sources[fd];
1005 assert(source->fd == fd);
1007 r = process_source(source, arg_compress, arg_seal);
1008 if (source->state == STATE_EOF) {
1011 log_info("EOF reached with source fd:%d (%s)",
1012 source->fd, source->name);
1014 remaining = source_non_empty(source);
1016 log_warning("Premature EOF. %zu bytes lost.", remaining);
1017 remove_source(s, source->fd);
1018 log_info("%zd active sources remaining", s->active);
1020 } else if (r == -E2BIG) {
1021 log_error("Entry too big, skipped");
1023 } else if (r == -EAGAIN) {
1026 log_info("Closing connection: %s", strerror(-r));
1027 remove_source(server, fd);
1033 static int accept_connection(const char* type, int fd,
1034 SocketAddress *addr, char **hostname) {
1037 log_debug("Accepting new %s connection on fd:%d", type, fd);
1038 fd2 = accept4(fd, &addr->sockaddr.sa, &addr->size, SOCK_NONBLOCK|SOCK_CLOEXEC);
1040 log_error("accept() on fd:%d failed: %m", fd);
1044 switch(socket_address_family(addr)) {
1047 _cleanup_free_ char *a = NULL;
1050 r = socket_address_print(addr, &a);
1052 log_error("socket_address_print(): %s", strerror(-r));
1057 r = socknameinfo_pretty(&addr->sockaddr, addr->size, &b);
1063 log_info("Accepted %s %s connection from %s",
1065 socket_address_family(addr) == AF_INET ? "IP" : "IPv6",
1073 log_error("Rejected %s connection with unsupported family %d",
1074 type, socket_address_family(addr));
1081 static int dispatch_raw_connection_event(sd_event_source *event,
1085 RemoteServer *s = userdata;
1087 SocketAddress addr = {
1088 .size = sizeof(union sockaddr_union),
1089 .type = SOCK_STREAM,
1093 fd2 = accept_connection("raw", fd, &addr, &hostname);
1097 r = add_source(s, fd2, hostname, true);
1103 /**********************************************************************
1104 **********************************************************************
1105 **********************************************************************/
1107 static const char* const journal_write_split_mode_table[_JOURNAL_WRITE_SPLIT_MAX] = {
1108 [JOURNAL_WRITE_SPLIT_NONE] = "none",
1109 [JOURNAL_WRITE_SPLIT_HOST] = "host",
1112 DEFINE_PRIVATE_STRING_TABLE_LOOKUP(journal_write_split_mode, JournalWriteSplitMode);
1113 static DEFINE_CONFIG_PARSE_ENUM(config_parse_write_split_mode,
1114 journal_write_split_mode,
1115 JournalWriteSplitMode,
1116 "Failed to parse split mode setting");
1118 static int parse_config(void) {
1119 const ConfigTableItem items[] = {
1120 { "Remote", "SplitMode", config_parse_write_split_mode, 0, &arg_split_mode },
1121 { "Remote", "ServerKeyFile", config_parse_path, 0, &arg_key },
1122 { "Remote", "ServerCertificateFile", config_parse_path, 0, &arg_cert },
1123 { "Remote", "TrustedCertificateFile", config_parse_path, 0, &arg_trust },
1126 return config_parse(NULL, PKGSYSCONFDIR "/journal-remote.conf", NULL,
1128 config_item_table_lookup, items,
1129 false, false, true, NULL);
1132 static void help(void) {
1133 printf("%s [OPTIONS...] {FILE|-}...\n\n"
1134 "Write external journal events to journal file(s).\n\n"
1136 " --url=URL Read events from systemd-journal-gatewayd at URL\n"
1137 " --getter=COMMAND Read events from the output of COMMAND\n"
1138 " --listen-raw=ADDR Listen for connections at ADDR\n"
1139 " --listen-http=ADDR Listen for HTTP connections at ADDR\n"
1140 " --listen-https=ADDR Listen for HTTPS connections at ADDR\n"
1141 " -o --output=FILE|DIR Write output to FILE or DIR/external-*.journal\n"
1142 " --[no-]compress Use XZ-compression in the output journal (default: yes)\n"
1143 " --[no-]seal Use Event sealing in the output journal (default: no)\n"
1144 " --key=FILENAME Specify key in PEM format (default:\n"
1145 " \"" KEY_FILE "\")\n"
1146 " --cert=FILENAME Specify certificate in PEM format (default:\n"
1147 " \"" CERT_FILE "\")\n"
1148 " --trust=FILENAME|all Specify CA certificate or disable checking (default:\n"
1149 " \"" TRUST_FILE "\")\n"
1150 " --gnutls-log=CATEGORY...\n"
1151 " Specify a list of gnutls logging categories\n"
1152 " -h --help Show this help and exit\n"
1153 " --version Print version string and exit\n"
1155 "Note: file descriptors from sd_listen_fds() will be consumed, too.\n"
1156 , program_invocation_short_name);
1159 static int parse_argv(int argc, char *argv[]) {
1161 ARG_VERSION = 0x100,
1178 static const struct option options[] = {
1179 { "help", no_argument, NULL, 'h' },
1180 { "version", no_argument, NULL, ARG_VERSION },
1181 { "url", required_argument, NULL, ARG_URL },
1182 { "getter", required_argument, NULL, ARG_GETTER },
1183 { "listen-raw", required_argument, NULL, ARG_LISTEN_RAW },
1184 { "listen-http", required_argument, NULL, ARG_LISTEN_HTTP },
1185 { "listen-https", required_argument, NULL, ARG_LISTEN_HTTPS },
1186 { "output", required_argument, NULL, 'o' },
1187 { "split-mode", required_argument, NULL, ARG_SPLIT_MODE },
1188 { "compress", no_argument, NULL, ARG_COMPRESS },
1189 { "no-compress", no_argument, NULL, ARG_NO_COMPRESS },
1190 { "seal", no_argument, NULL, ARG_SEAL },
1191 { "no-seal", no_argument, NULL, ARG_NO_SEAL },
1192 { "key", required_argument, NULL, ARG_KEY },
1193 { "cert", required_argument, NULL, ARG_CERT },
1194 { "trust", required_argument, NULL, ARG_TRUST },
1195 { "gnutls-log", required_argument, NULL, ARG_GNUTLS_LOG },
1200 bool type_a, type_b;
1205 while ((c = getopt_long(argc, argv, "ho:", options, NULL)) >= 0)
1209 return 0 /* done */;
1212 puts(PACKAGE_STRING);
1213 puts(SYSTEMD_FEATURES);
1214 return 0 /* done */;
1218 log_error("cannot currently set more than one --url");
1227 log_error("cannot currently use --getter more than once");
1231 arg_getter = optarg;
1234 case ARG_LISTEN_RAW:
1235 if (arg_listen_raw) {
1236 log_error("cannot currently use --listen-raw more than once");
1240 arg_listen_raw = optarg;
1243 case ARG_LISTEN_HTTP:
1244 if (arg_listen_http || http_socket >= 0) {
1245 log_error("cannot currently use --listen-http more than once");
1253 arg_listen_http = optarg;
1256 case ARG_LISTEN_HTTPS:
1257 if (arg_listen_https || https_socket >= 0) {
1258 log_error("cannot currently use --listen-https more than once");
1266 arg_listen_https = optarg;
1272 log_error("Key file specified twice");
1276 arg_key = strdup(optarg);
1284 log_error("Certificate file specified twice");
1288 arg_cert = strdup(optarg);
1295 if (arg_trust || arg_trust_all) {
1296 log_error("Confusing trusted CA configuration");
1300 if (streq(optarg, "all"))
1301 arg_trust_all = true;
1304 arg_trust = strdup(optarg);
1308 log_error("Option --trust is not available.");
1317 log_error("cannot use --output/-o more than once");
1321 arg_output = optarg;
1324 case ARG_SPLIT_MODE:
1325 arg_split_mode = journal_write_split_mode_from_string(optarg);
1326 if (arg_split_mode == _JOURNAL_WRITE_SPLIT_INVALID) {
1327 log_error("Invalid split mode: %s", optarg);
1333 arg_compress = true;
1335 case ARG_NO_COMPRESS:
1336 arg_compress = false;
1345 case ARG_GNUTLS_LOG: {
1350 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
1353 cat = strndup(word, size);
1357 if (strv_consume(&arg_gnutls_log, cat) < 0)
1362 log_error("Option --gnutls-log is not available.");
1371 log_error("Unknown option code %c", c);
1376 arg_files = argv + optind;
1378 type_a = arg_getter || !strv_isempty(arg_files);
1381 || arg_listen_http || arg_listen_https
1382 || sd_listen_fds(false) > 0;
1383 if (type_a && type_b) {
1384 log_error("Cannot use file input or --getter with "
1385 "--arg-listen-... or socket activation.");
1390 log_error("Option --output must be specified with file input or --getter.");
1394 arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
1397 if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE
1398 && arg_output && is_dir(arg_output, true) > 0) {
1399 log_error("For SplitMode=none, output must be a file.");
1403 if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST
1404 && arg_output && is_dir(arg_output, true) <= 0) {
1405 log_error("For SplitMode=host, output must be a directory.");
1409 log_debug("Full config: SplitMode=%s Key=%s Cert=%s Trust=%s",
1410 journal_write_split_mode_to_string(arg_split_mode),
1415 return 1 /* work to do */;
1418 static int load_certificates(char **key, char **cert, char **trust) {
1421 r = read_full_file(arg_key ?: KEY_FILE, key, NULL);
1423 log_error("Failed to read key from file '%s': %s",
1424 arg_key ?: KEY_FILE, strerror(-r));
1428 r = read_full_file(arg_cert ?: CERT_FILE, cert, NULL);
1430 log_error("Failed to read certificate from file '%s': %s",
1431 arg_cert ?: CERT_FILE, strerror(-r));
1436 log_info("Certificate checking disabled.");
1438 r = read_full_file(arg_trust ?: TRUST_FILE, trust, NULL);
1440 log_error("Failed to read CA certificate file '%s': %s",
1441 arg_trust ?: TRUST_FILE, strerror(-r));
1449 static int setup_gnutls_logger(char **categories) {
1450 if (!arg_listen_http && !arg_listen_https)
1458 gnutls_global_set_log_function(log_func_gnutls);
1461 STRV_FOREACH(cat, categories) {
1462 r = log_enable_gnutls_category(*cat);
1467 log_reset_gnutls_level();
1474 int main(int argc, char **argv) {
1475 RemoteServer s = {};
1477 _cleanup_free_ char *key = NULL, *cert = NULL, *trust = NULL;
1479 log_show_color(true);
1480 log_parse_environment();
1484 return EXIT_FAILURE;
1486 r = parse_argv(argc, argv);
1488 return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
1490 r = setup_gnutls_logger(arg_gnutls_log);
1492 return EXIT_FAILURE;
1494 if (arg_listen_https || https_socket >= 0)
1495 if (load_certificates(&key, &cert, &trust) < 0)
1496 return EXIT_FAILURE;
1498 if (remoteserver_init(&s, key, cert, trust) < 0)
1499 return EXIT_FAILURE;
1501 sd_event_set_watchdog(s.events, true);
1503 log_debug("%s running as pid "PID_FMT,
1504 program_invocation_short_name, getpid());
1507 "STATUS=Processing requests...");
1510 r = sd_event_get_state(s.events);
1513 if (r == SD_EVENT_FINISHED)
1516 r = sd_event_run(s.events, -1);
1518 log_error("Failed to run event loop: %s", strerror(-r));
1524 log_info("Finishing after writing %" PRIu64 " entries", s.event_count);
1526 sd_notify(false, "STATUS=Shutting down...");
1532 return r >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;