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 PRIV_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 r = strv_split_quoted(&words, getter);
154 log_error("Failed to split getter option: %s", strerror(-r));
158 r = strv_extend(&words, url);
160 log_error("Failed to create command line: %s", strerror(-r));
164 r = spawn_child(words[0], words);
166 log_error("Failed to spawn getter %s: %m", getter);
171 #define filename_escape(s) xescape((s), "/ ")
173 static int open_output(Writer *w, const char* host) {
174 _cleanup_free_ char *_output = NULL;
178 switch (arg_split_mode) {
179 case JOURNAL_WRITE_SPLIT_NONE:
180 output = arg_output ?: REMOTE_JOURNAL_PATH "/remote.journal";
183 case JOURNAL_WRITE_SPLIT_HOST: {
184 _cleanup_free_ char *name;
188 name = filename_escape(host);
192 r = asprintf(&_output, "%s/remote-%s.journal",
193 arg_output ?: REMOTE_JOURNAL_PATH,
203 assert_not_reached("what?");
206 r = journal_file_open_reliably(output,
207 O_RDWR|O_CREAT, 0640,
208 arg_compress, arg_seal,
213 log_error("Failed to open output journal %s: %s",
214 output, strerror(-r));
216 log_info("Opened output file %s", w->journal->path);
220 /**********************************************************************
221 **********************************************************************
222 **********************************************************************/
224 static int init_writer_hashmap(RemoteServer *s) {
225 static const struct hash_ops *hash_ops[] = {
226 [JOURNAL_WRITE_SPLIT_NONE] = NULL,
227 [JOURNAL_WRITE_SPLIT_HOST] = &string_hash_ops,
230 assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(hash_ops));
232 s->writers = hashmap_new(hash_ops[arg_split_mode]);
239 static int get_writer(RemoteServer *s, const char *host,
242 _cleanup_writer_unref_ Writer *w = NULL;
245 switch(arg_split_mode) {
246 case JOURNAL_WRITE_SPLIT_NONE:
247 key = "one and only";
250 case JOURNAL_WRITE_SPLIT_HOST:
256 assert_not_reached("what split mode?");
259 w = hashmap_get(s->writers, key);
267 if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST) {
268 w->hashmap_key = strdup(key);
273 r = open_output(w, host);
277 r = hashmap_put(s->writers, w->hashmap_key ?: key, w);
287 /**********************************************************************
288 **********************************************************************
289 **********************************************************************/
291 /* This should go away as soon as µhttpd allows state to be passed around. */
292 static RemoteServer *server;
294 static int dispatch_raw_source_event(sd_event_source *event,
298 static int dispatch_raw_connection_event(sd_event_source *event,
302 static int dispatch_http_event(sd_event_source *event,
307 static int get_source_for_fd(RemoteServer *s,
308 int fd, char *name, RemoteSource **source) {
315 if (!GREEDY_REALLOC0(s->sources, s->sources_size, fd + 1))
318 r = get_writer(s, name, &writer);
320 log_warning("Failed to get writer for source %s: %s",
325 if (s->sources[fd] == NULL) {
326 s->sources[fd] = source_new(fd, false, name, writer);
327 if (!s->sources[fd]) {
328 writer_unref(writer);
335 *source = s->sources[fd];
339 static int remove_source(RemoteServer *s, int fd) {
340 RemoteSource *source;
343 assert(fd >= 0 && fd < (ssize_t) s->sources_size);
345 source = s->sources[fd];
347 /* this closes fd too */
349 s->sources[fd] = NULL;
356 static int add_source(RemoteServer *s, int fd, char* name, bool own_name) {
358 RemoteSource *source;
371 r = get_source_for_fd(s, fd, name, &source);
373 log_error("Failed to create source for fd:%d (%s): %s",
374 fd, name, strerror(-r));
378 r = sd_event_add_io(s->events, &source->event,
379 fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI,
380 dispatch_raw_source_event, s);
382 log_error("Failed to register event source for fd:%d: %s",
387 return 1; /* work to do */
390 remove_source(s, fd);
394 static int add_raw_socket(RemoteServer *s, int fd) {
397 r = sd_event_add_io(s->events, &s->listen_event,
399 dispatch_raw_connection_event, s);
409 static int setup_raw_socket(RemoteServer *s, const char *address) {
412 fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);
416 return add_raw_socket(s, fd);
419 /**********************************************************************
420 **********************************************************************
421 **********************************************************************/
423 static RemoteSource *request_meta(void **connection_cls, int fd, char *hostname) {
424 RemoteSource *source;
428 assert(connection_cls);
430 return *connection_cls;
432 r = get_writer(server, hostname, &writer);
434 log_warning("Failed to get writer for source %s: %s",
435 hostname, strerror(-r));
439 source = source_new(fd, true, hostname, writer);
442 writer_unref(writer);
446 log_debug("Added RemoteSource as connection metadata %p", source);
448 *connection_cls = source;
452 static void request_meta_free(void *cls,
453 struct MHD_Connection *connection,
454 void **connection_cls,
455 enum MHD_RequestTerminationCode toe) {
458 assert(connection_cls);
461 log_debug("Cleaning up connection metadata %p", s);
463 *connection_cls = NULL;
466 static int process_http_upload(
467 struct MHD_Connection *connection,
468 const char *upload_data,
469 size_t *upload_data_size,
470 RemoteSource *source) {
472 bool finished = false;
478 log_debug("request_handler_upload: connection %p, %zu bytes",
479 connection, *upload_data_size);
481 if (*upload_data_size) {
482 log_debug("Received %zu bytes", *upload_data_size);
484 r = push_data(source, upload_data, *upload_data_size);
486 return mhd_respond_oom(connection);
488 *upload_data_size = 0;
493 r = process_source(source, arg_compress, arg_seal);
494 if (r == -EAGAIN || r == -EWOULDBLOCK)
497 log_warning("Failed to process data for connection %p", connection);
499 return mhd_respondf(connection,
500 MHD_HTTP_REQUEST_ENTITY_TOO_LARGE,
501 "Entry is too large, maximum is %u bytes.\n",
504 return mhd_respondf(connection,
505 MHD_HTTP_UNPROCESSABLE_ENTITY,
506 "Processing failed: %s.", strerror(-r));
513 /* The upload is finished */
515 remaining = source_non_empty(source);
517 log_warning("Premature EOFbyte. %zu bytes lost.", remaining);
518 return mhd_respondf(connection, MHD_HTTP_EXPECTATION_FAILED,
519 "Premature EOF. %zu bytes of trailing data not processed.",
523 return mhd_respond(connection, MHD_HTTP_ACCEPTED, "OK.\n");
526 static int request_handler(
528 struct MHD_Connection *connection,
532 const char *upload_data,
533 size_t *upload_data_size,
534 void **connection_cls) {
538 _cleanup_free_ char *hostname = NULL;
541 assert(connection_cls);
545 log_debug("Handling a connection %s %s %s", method, url, version);
548 return process_http_upload(connection,
549 upload_data, upload_data_size,
552 if (!streq(method, "POST"))
553 return mhd_respond(connection, MHD_HTTP_METHOD_NOT_ACCEPTABLE,
554 "Unsupported method.\n");
556 if (!streq(url, "/upload"))
557 return mhd_respond(connection, MHD_HTTP_NOT_FOUND,
560 header = MHD_lookup_connection_value(connection,
561 MHD_HEADER_KIND, "Content-Type");
562 if (!header || !streq(header, "application/vnd.fdo.journal"))
563 return mhd_respond(connection, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE,
564 "Content-Type: application/vnd.fdo.journal"
568 const union MHD_ConnectionInfo *ci;
570 ci = MHD_get_connection_info(connection,
571 MHD_CONNECTION_INFO_CONNECTION_FD);
573 log_error("MHD_get_connection_info failed: cannot get remote fd");
574 return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
575 "Cannot check remote address");
582 if (server->check_trust) {
583 r = check_permissions(connection, &code, &hostname);
587 r = getnameinfo_pretty(fd, &hostname);
589 return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
590 "Cannot check remote hostname");
596 if (!request_meta(connection_cls, fd, hostname))
597 return respond_oom(connection);
602 static int setup_microhttpd_server(RemoteServer *s,
607 struct MHD_OptionItem opts[] = {
608 { MHD_OPTION_NOTIFY_COMPLETED, (intptr_t) request_meta_free},
609 { MHD_OPTION_EXTERNAL_LOGGER, (intptr_t) microhttpd_logger},
610 { MHD_OPTION_LISTEN_SOCKET, fd},
618 MHD_USE_PEDANTIC_CHECKS |
619 MHD_USE_EPOLL_LINUX_ONLY |
622 const union MHD_DaemonInfo *info;
628 r = fd_nonblock(fd, true);
630 log_error("Failed to make fd:%d nonblocking: %s", fd, strerror(-r));
637 opts[opts_pos++] = (struct MHD_OptionItem)
638 {MHD_OPTION_HTTPS_MEM_KEY, 0, (char*) key};
639 opts[opts_pos++] = (struct MHD_OptionItem)
640 {MHD_OPTION_HTTPS_MEM_CERT, 0, (char*) cert};
642 flags |= MHD_USE_SSL;
645 opts[opts_pos++] = (struct MHD_OptionItem)
646 {MHD_OPTION_HTTPS_MEM_TRUST, 0, (char*) trust};
649 d = new(MHDDaemonWrapper, 1);
653 d->fd = (uint64_t) fd;
655 d->daemon = MHD_start_daemon(flags, 0,
657 request_handler, NULL,
658 MHD_OPTION_ARRAY, opts,
661 log_error("Failed to start µhttp daemon");
666 log_debug("Started MHD %s daemon on fd:%d (wrapper @ %p)",
667 key ? "HTTPS" : "HTTP", fd, d);
670 info = MHD_get_daemon_info(d->daemon, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
672 log_error("µhttp returned NULL daemon info");
677 epoll_fd = info->listen_fd;
679 log_error("µhttp epoll fd is invalid");
684 r = sd_event_add_io(s->events, &d->event,
686 dispatch_http_event, d);
688 log_error("Failed to add event callback: %s", strerror(-r));
692 r = hashmap_ensure_allocated(&s->daemons, &uint64_hash_ops);
698 r = hashmap_put(s->daemons, &d->fd, d);
700 log_error("Failed to add daemon to hashmap: %s", strerror(-r));
708 MHD_stop_daemon(d->daemon);
714 static int setup_microhttpd_socket(RemoteServer *s,
721 fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);
725 return setup_microhttpd_server(s, fd, key, cert, trust);
728 static int dispatch_http_event(sd_event_source *event,
732 MHDDaemonWrapper *d = userdata;
737 r = MHD_run(d->daemon);
739 log_error("MHD_run failed!");
740 // XXX: unregister daemon
744 return 1; /* work to do */
747 /**********************************************************************
748 **********************************************************************
749 **********************************************************************/
751 static int dispatch_sigterm(sd_event_source *event,
752 const struct signalfd_siginfo *si,
754 RemoteServer *s = userdata;
758 log_received_signal(LOG_INFO, si);
760 sd_event_exit(s->events, 0);
764 static int setup_signals(RemoteServer *s) {
770 assert_se(sigemptyset(&mask) == 0);
771 sigset_add_many(&mask, SIGINT, SIGTERM, -1);
772 assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
774 r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, dispatch_sigterm, s);
778 r = sd_event_add_signal(s->events, &s->sigint_event, SIGINT, dispatch_sigterm, s);
785 static int fd_fd(const char *spec) {
788 r = safe_atoi(spec, &fd);
797 static int remoteserver_init(RemoteServer *s,
806 if ((arg_listen_raw || arg_listen_http) && trust) {
807 log_error("Option --trust makes all non-HTTPS connections untrusted.");
811 sd_event_default(&s->events);
815 assert(server == NULL);
818 n = sd_listen_fds(true);
820 log_error("Failed to read listening file descriptors from environment: %s",
824 log_info("Received %d descriptors", n);
826 if (MAX(http_socket, https_socket) >= SD_LISTEN_FDS_START + n) {
827 log_error("Received fewer sockets than expected");
831 for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
832 if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {
833 log_info("Received a listening socket (fd:%d)", fd);
835 if (fd == http_socket)
836 r = setup_microhttpd_server(s, fd, NULL, NULL, NULL);
837 else if (fd == https_socket)
838 r = setup_microhttpd_server(s, fd, key, cert, trust);
840 r = add_raw_socket(s, fd);
841 } else if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {
844 r = getnameinfo_pretty(fd, &hostname);
846 log_error("Failed to retrieve remote name: %s", strerror(-r));
850 log_info("Received a connection socket (fd:%d) from %s", fd, hostname);
852 r = add_source(s, fd, hostname, true);
856 log_error("Unknown socket passed on fd:%d", fd);
862 log_error("Failed to register socket (fd:%d): %s",
869 const char *url, *hostname;
871 url = strappenda(arg_url, "/entries");
874 log_info("Spawning getter %s...", url);
875 fd = spawn_getter(arg_getter, url);
877 log_info("Spawning curl %s...", url);
878 fd = spawn_curl(url);
884 startswith(arg_url, "https://") ?:
885 startswith(arg_url, "http://") ?:
888 r = add_source(s, fd, (char*) hostname, false);
893 if (arg_listen_raw) {
894 log_info("Listening on a socket...");
895 r = setup_raw_socket(s, arg_listen_raw);
900 if (arg_listen_http) {
901 r = setup_microhttpd_socket(s, arg_listen_http, NULL, NULL, NULL);
906 if (arg_listen_https) {
907 r = setup_microhttpd_socket(s, arg_listen_https, key, cert, trust);
912 STRV_FOREACH(file, arg_files) {
913 const char *output_name;
915 if (streq(*file, "-")) {
916 log_info("Using standard input as source.");
919 output_name = "stdin";
921 log_info("Reading file %s...", *file);
923 fd = open(*file, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
925 log_error("Failed to open %s: %m", *file);
931 r = add_source(s, fd, (char*) output_name, false);
936 if (s->active == 0) {
937 log_error("Zarro sources specified");
941 r = init_writer_hashmap(s);
945 if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE) {
946 /* In this case we know what the writer will be
947 called, so we can create it and verify that we can
948 create output as expected. */
949 r = get_writer(s, NULL, &s->_single_writer);
957 static void server_destroy(RemoteServer *s) {
961 while ((d = hashmap_steal_first(s->daemons))) {
962 MHD_stop_daemon(d->daemon);
963 sd_event_source_unref(d->event);
967 hashmap_free(s->daemons);
969 assert(s->sources_size == 0 || s->sources);
970 for (i = 0; i < s->sources_size; i++)
974 writer_unref(s->_single_writer);
975 hashmap_free(s->writers);
977 sd_event_source_unref(s->sigterm_event);
978 sd_event_source_unref(s->sigint_event);
979 sd_event_source_unref(s->listen_event);
980 sd_event_unref(s->events);
982 /* fds that we're listening on remain open... */
985 /**********************************************************************
986 **********************************************************************
987 **********************************************************************/
989 static int dispatch_raw_source_event(sd_event_source *event,
994 RemoteServer *s = userdata;
995 RemoteSource *source;
998 assert(fd >= 0 && fd < (ssize_t) s->sources_size);
999 source = s->sources[fd];
1000 assert(source->fd == fd);
1002 r = process_source(source, arg_compress, arg_seal);
1003 if (source->state == STATE_EOF) {
1006 log_info("EOF reached with source fd:%d (%s)",
1007 source->fd, source->name);
1009 remaining = source_non_empty(source);
1011 log_warning("Premature EOF. %zu bytes lost.", remaining);
1012 remove_source(s, source->fd);
1013 log_info("%zd active sources remaining", s->active);
1015 } else if (r == -E2BIG) {
1016 log_error("Entry too big, skipped");
1018 } else if (r == -EAGAIN) {
1021 log_info("Closing connection: %s", strerror(-r));
1022 remove_source(server, fd);
1028 static int accept_connection(const char* type, int fd,
1029 SocketAddress *addr, char **hostname) {
1032 log_debug("Accepting new %s connection on fd:%d", type, fd);
1033 fd2 = accept4(fd, &addr->sockaddr.sa, &addr->size, SOCK_NONBLOCK|SOCK_CLOEXEC);
1035 log_error("accept() on fd:%d failed: %m", fd);
1039 switch(socket_address_family(addr)) {
1042 _cleanup_free_ char *a = NULL;
1045 r = socket_address_print(addr, &a);
1047 log_error("socket_address_print(): %s", strerror(-r));
1052 r = socknameinfo_pretty(&addr->sockaddr, addr->size, &b);
1058 log_info("Accepted %s %s connection from %s",
1060 socket_address_family(addr) == AF_INET ? "IP" : "IPv6",
1068 log_error("Rejected %s connection with unsupported family %d",
1069 type, socket_address_family(addr));
1076 static int dispatch_raw_connection_event(sd_event_source *event,
1080 RemoteServer *s = userdata;
1082 SocketAddress addr = {
1083 .size = sizeof(union sockaddr_union),
1084 .type = SOCK_STREAM,
1088 fd2 = accept_connection("raw", fd, &addr, &hostname);
1092 r = add_source(s, fd2, hostname, true);
1098 /**********************************************************************
1099 **********************************************************************
1100 **********************************************************************/
1102 static const char* const journal_write_split_mode_table[_JOURNAL_WRITE_SPLIT_MAX] = {
1103 [JOURNAL_WRITE_SPLIT_NONE] = "none",
1104 [JOURNAL_WRITE_SPLIT_HOST] = "host",
1107 DEFINE_PRIVATE_STRING_TABLE_LOOKUP(journal_write_split_mode, JournalWriteSplitMode);
1108 static DEFINE_CONFIG_PARSE_ENUM(config_parse_write_split_mode,
1109 journal_write_split_mode,
1110 JournalWriteSplitMode,
1111 "Failed to parse split mode setting");
1113 static int parse_config(void) {
1114 const ConfigTableItem items[] = {
1115 { "Remote", "SplitMode", config_parse_write_split_mode, 0, &arg_split_mode },
1116 { "Remote", "ServerKeyFile", config_parse_path, 0, &arg_key },
1117 { "Remote", "ServerCertificateFile", config_parse_path, 0, &arg_cert },
1118 { "Remote", "TrustedCertificateFile", config_parse_path, 0, &arg_trust },
1121 return config_parse(NULL, PKGSYSCONFDIR "/journal-remote.conf", NULL,
1123 config_item_table_lookup, items,
1124 false, false, true, NULL);
1127 static void help(void) {
1128 printf("%s [OPTIONS...] {FILE|-}...\n\n"
1129 "Write external journal events to journal file(s).\n\n"
1130 " -h --help Show this help\n"
1131 " --version Show package version\n"
1132 " --url=URL Read events from systemd-journal-gatewayd at URL\n"
1133 " --getter=COMMAND Read events from the output of COMMAND\n"
1134 " --listen-raw=ADDR Listen for connections at ADDR\n"
1135 " --listen-http=ADDR Listen for HTTP connections at ADDR\n"
1136 " --listen-https=ADDR Listen for HTTPS connections at ADDR\n"
1137 " -o --output=FILE|DIR Write output to FILE or DIR/external-*.journal\n"
1138 " --compress[=BOOL] Use XZ-compression in the output journal (default: yes)\n"
1139 " --seal[=BOOL] Use Event sealing in the output journal (default: no)\n"
1140 " --key=FILENAME Specify key in PEM format (default:\n"
1141 " \"" PRIV_KEY_FILE "\")\n"
1142 " --cert=FILENAME Specify certificate in PEM format (default:\n"
1143 " \"" CERT_FILE "\")\n"
1144 " --trust=FILENAME|all Specify CA certificate or disable checking (default:\n"
1145 " \"" TRUST_FILE "\")\n"
1146 " --gnutls-log=CATEGORY...\n"
1147 " Specify a list of gnutls logging categories\n"
1149 "Note: file descriptors from sd_listen_fds() will be consumed, too.\n"
1150 , program_invocation_short_name);
1153 static int parse_argv(int argc, char *argv[]) {
1155 ARG_VERSION = 0x100,
1170 static const struct option options[] = {
1171 { "help", no_argument, NULL, 'h' },
1172 { "version", no_argument, NULL, ARG_VERSION },
1173 { "url", required_argument, NULL, ARG_URL },
1174 { "getter", required_argument, NULL, ARG_GETTER },
1175 { "listen-raw", required_argument, NULL, ARG_LISTEN_RAW },
1176 { "listen-http", required_argument, NULL, ARG_LISTEN_HTTP },
1177 { "listen-https", required_argument, NULL, ARG_LISTEN_HTTPS },
1178 { "output", required_argument, NULL, 'o' },
1179 { "split-mode", required_argument, NULL, ARG_SPLIT_MODE },
1180 { "compress", optional_argument, NULL, ARG_COMPRESS },
1181 { "seal", optional_argument, NULL, ARG_SEAL },
1182 { "key", required_argument, NULL, ARG_KEY },
1183 { "cert", required_argument, NULL, ARG_CERT },
1184 { "trust", required_argument, NULL, ARG_TRUST },
1185 { "gnutls-log", required_argument, NULL, ARG_GNUTLS_LOG },
1190 bool type_a, type_b;
1195 while ((c = getopt_long(argc, argv, "ho:", options, NULL)) >= 0)
1199 return 0 /* done */;
1202 puts(PACKAGE_STRING);
1203 puts(SYSTEMD_FEATURES);
1204 return 0 /* done */;
1208 log_error("cannot currently set more than one --url");
1217 log_error("cannot currently use --getter more than once");
1221 arg_getter = optarg;
1224 case ARG_LISTEN_RAW:
1225 if (arg_listen_raw) {
1226 log_error("cannot currently use --listen-raw more than once");
1230 arg_listen_raw = optarg;
1233 case ARG_LISTEN_HTTP:
1234 if (arg_listen_http || http_socket >= 0) {
1235 log_error("cannot currently use --listen-http more than once");
1243 arg_listen_http = optarg;
1246 case ARG_LISTEN_HTTPS:
1247 if (arg_listen_https || https_socket >= 0) {
1248 log_error("cannot currently use --listen-https more than once");
1256 arg_listen_https = optarg;
1262 log_error("Key file specified twice");
1266 arg_key = strdup(optarg);
1274 log_error("Certificate file specified twice");
1278 arg_cert = strdup(optarg);
1285 if (arg_trust || arg_trust_all) {
1286 log_error("Confusing trusted CA configuration");
1290 if (streq(optarg, "all"))
1291 arg_trust_all = true;
1294 arg_trust = strdup(optarg);
1298 log_error("Option --trust is not available.");
1307 log_error("cannot use --output/-o more than once");
1311 arg_output = optarg;
1314 case ARG_SPLIT_MODE:
1315 arg_split_mode = journal_write_split_mode_from_string(optarg);
1316 if (arg_split_mode == _JOURNAL_WRITE_SPLIT_INVALID) {
1317 log_error("Invalid split mode: %s", optarg);
1324 r = parse_boolean(optarg);
1326 log_error("Failed to parse --compress= parameter.");
1332 arg_compress = true;
1338 r = parse_boolean(optarg);
1340 log_error("Failed to parse --seal= parameter.");
1350 case ARG_GNUTLS_LOG: {
1352 const char *word, *state;
1355 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
1358 cat = strndup(word, size);
1362 if (strv_consume(&arg_gnutls_log, cat) < 0)
1367 log_error("Option --gnutls-log is not available.");
1376 assert_not_reached("Unknown option code.");
1380 arg_files = argv + optind;
1382 type_a = arg_getter || !strv_isempty(arg_files);
1385 || arg_listen_http || arg_listen_https
1386 || sd_listen_fds(false) > 0;
1387 if (type_a && type_b) {
1388 log_error("Cannot use file input or --getter with "
1389 "--arg-listen-... or socket activation.");
1394 log_error("Option --output must be specified with file input or --getter.");
1398 arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
1401 if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE
1402 && arg_output && is_dir(arg_output, true) > 0) {
1403 log_error("For SplitMode=none, output must be a file.");
1407 if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST
1408 && arg_output && is_dir(arg_output, true) <= 0) {
1409 log_error("For SplitMode=host, output must be a directory.");
1413 log_debug("Full config: SplitMode=%s Key=%s Cert=%s Trust=%s",
1414 journal_write_split_mode_to_string(arg_split_mode),
1419 return 1 /* work to do */;
1422 static int load_certificates(char **key, char **cert, char **trust) {
1425 r = read_full_file(arg_key ?: PRIV_KEY_FILE, key, NULL);
1427 log_error("Failed to read key from file '%s': %s",
1428 arg_key ?: PRIV_KEY_FILE, strerror(-r));
1432 r = read_full_file(arg_cert ?: CERT_FILE, cert, NULL);
1434 log_error("Failed to read certificate from file '%s': %s",
1435 arg_cert ?: CERT_FILE, strerror(-r));
1440 log_info("Certificate checking disabled.");
1442 r = read_full_file(arg_trust ?: TRUST_FILE, trust, NULL);
1444 log_error("Failed to read CA certificate file '%s': %s",
1445 arg_trust ?: TRUST_FILE, strerror(-r));
1453 static int setup_gnutls_logger(char **categories) {
1454 if (!arg_listen_http && !arg_listen_https)
1462 gnutls_global_set_log_function(log_func_gnutls);
1465 STRV_FOREACH(cat, categories) {
1466 r = log_enable_gnutls_category(*cat);
1471 log_reset_gnutls_level();
1478 int main(int argc, char **argv) {
1479 RemoteServer s = {};
1481 _cleanup_free_ char *key = NULL, *cert = NULL, *trust = NULL;
1483 log_show_color(true);
1484 log_parse_environment();
1488 return EXIT_FAILURE;
1490 r = parse_argv(argc, argv);
1492 return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
1494 r = setup_gnutls_logger(arg_gnutls_log);
1496 return EXIT_FAILURE;
1498 if (arg_listen_https || https_socket >= 0)
1499 if (load_certificates(&key, &cert, &trust) < 0)
1500 return EXIT_FAILURE;
1502 if (remoteserver_init(&s, key, cert, trust) < 0)
1503 return EXIT_FAILURE;
1505 sd_event_set_watchdog(s.events, true);
1507 log_debug("%s running as pid "PID_FMT,
1508 program_invocation_short_name, getpid());
1511 "STATUS=Processing requests...");
1514 r = sd_event_get_state(s.events);
1517 if (r == SD_EVENT_FINISHED)
1520 r = sd_event_run(s.events, -1);
1522 log_error("Failed to run event loop: %s", strerror(-r));
1529 "STATUS=Shutting down after writing %" PRIu64 " entries...", s.event_count);
1530 log_info("Finishing after writing %" PRIu64 " entries", s.event_count);
1538 return r >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;