--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <getopt.h>
+#include <unistd.h>
+
+#include "sd-daemon.h"
+
+#include "conf-parser.h"
+#include "def.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "journal-remote-write.h"
+#include "journal-remote.h"
+#include "process-util.h"
+#include "signal-util.h"
+#include "socket-util.h"
+#include "stat-util.h"
+#include "string-table.h"
+#include "strv.h"
+
+#define PRIV_KEY_FILE CERTIFICATE_ROOT "/private/journal-remote.pem"
+#define CERT_FILE CERTIFICATE_ROOT "/certs/journal-remote.pem"
+#define TRUST_FILE CERTIFICATE_ROOT "/ca/trusted.pem"
+
+static char* arg_url = NULL;
+static char* arg_getter = NULL;
+static char* arg_listen_raw = NULL;
+static char* arg_listen_http = NULL;
+static char* arg_listen_https = NULL;
+static char** arg_files = NULL;
+static int arg_compress = true;
+static int arg_seal = false;
+static int http_socket = -1, https_socket = -1;
+static char** arg_gnutls_log = NULL;
+
+static JournalWriteSplitMode arg_split_mode = _JOURNAL_WRITE_SPLIT_INVALID;
+static char* arg_output = NULL;
+
+static char *arg_key = NULL;
+static char *arg_cert = NULL;
+static char *arg_trust = NULL;
+static bool arg_trust_all = false;
+
+static const char* const journal_write_split_mode_table[_JOURNAL_WRITE_SPLIT_MAX] = {
+ [JOURNAL_WRITE_SPLIT_NONE] = "none",
+ [JOURNAL_WRITE_SPLIT_HOST] = "host",
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP(journal_write_split_mode, JournalWriteSplitMode);
+static DEFINE_CONFIG_PARSE_ENUM(config_parse_write_split_mode,
+ journal_write_split_mode,
+ JournalWriteSplitMode,
+ "Failed to parse split mode setting");
+
+/**********************************************************************
+ **********************************************************************
+ **********************************************************************/
+
+static int spawn_child(const char* child, char** argv) {
+ pid_t child_pid;
+ int fd[2], r;
+
+ if (pipe(fd) < 0)
+ return log_error_errno(errno, "Failed to create pager pipe: %m");
+
+ r = safe_fork("(remote)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &child_pid);
+ if (r < 0) {
+ safe_close_pair(fd);
+ return r;
+ }
+
+ /* In the child */
+ if (r == 0) {
+ safe_close(fd[0]);
+
+ r = rearrange_stdio(STDIN_FILENO, fd[1], STDERR_FILENO);
+ if (r < 0) {
+ log_error_errno(r, "Failed to dup pipe to stdout: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ execvp(child, argv);
+ log_error_errno(errno, "Failed to exec child %s: %m", child);
+ _exit(EXIT_FAILURE);
+ }
+
+ safe_close(fd[1]);
+
+ r = fd_nonblock(fd[0], true);
+ if (r < 0)
+ log_warning_errno(errno, "Failed to set child pipe to non-blocking: %m");
+
+ return fd[0];
+}
+
+static int spawn_curl(const char* url) {
+ char **argv = STRV_MAKE("curl",
+ "-HAccept: application/vnd.fdo.journal",
+ "--silent",
+ "--show-error",
+ url);
+ int r;
+
+ r = spawn_child("curl", argv);
+ if (r < 0)
+ log_error_errno(r, "Failed to spawn curl: %m");
+ return r;
+}
+
+static int spawn_getter(const char *getter) {
+ int r;
+ _cleanup_strv_free_ char **words = NULL;
+
+ assert(getter);
+ r = strv_split_extract(&words, getter, WHITESPACE, EXTRACT_QUOTES);
+ if (r < 0)
+ return log_error_errno(r, "Failed to split getter option: %m");
+
+ r = spawn_child(words[0], words);
+ if (r < 0)
+ log_error_errno(r, "Failed to spawn getter %s: %m", getter);
+
+ return r;
+}
+
+/**********************************************************************
+ **********************************************************************
+ **********************************************************************/
+
+static int null_timer_event_handler(sd_event_source *s,
+ uint64_t usec,
+ void *userdata);
+static int dispatch_http_event(sd_event_source *event,
+ int fd,
+ uint32_t revents,
+ void *userdata);
+
+static int request_meta(void **connection_cls, int fd, char *hostname) {
+ RemoteSource *source;
+ Writer *writer;
+ int r;
+
+ assert(connection_cls);
+ if (*connection_cls)
+ return 0;
+
+ r = journal_remote_get_writer(journal_remote_server_global, hostname, &writer);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to get writer for source %s: %m",
+ hostname);
+
+ source = source_new(fd, true, hostname, writer);
+ if (!source) {
+ writer_unref(writer);
+ return log_oom();
+ }
+
+ log_debug("Added RemoteSource as connection metadata %p", source);
+
+ *connection_cls = source;
+ return 0;
+}
+
+static void request_meta_free(void *cls,
+ struct MHD_Connection *connection,
+ void **connection_cls,
+ enum MHD_RequestTerminationCode toe) {
+ RemoteSource *s;
+
+ assert(connection_cls);
+ s = *connection_cls;
+
+ if (s) {
+ log_debug("Cleaning up connection metadata %p", s);
+ source_free(s);
+ *connection_cls = NULL;
+ }
+}
+
+static int process_http_upload(
+ struct MHD_Connection *connection,
+ const char *upload_data,
+ size_t *upload_data_size,
+ RemoteSource *source) {
+
+ bool finished = false;
+ size_t remaining;
+ int r;
+
+ assert(source);
+
+ log_trace("%s: connection %p, %zu bytes",
+ __func__, connection, *upload_data_size);
+
+ if (*upload_data_size) {
+ log_trace("Received %zu bytes", *upload_data_size);
+
+ r = journal_importer_push_data(&source->importer,
+ upload_data, *upload_data_size);
+ if (r < 0)
+ return mhd_respond_oom(connection);
+
+ *upload_data_size = 0;
+ } else
+ finished = true;
+
+ for (;;) {
+ r = process_source(source,
+ journal_remote_server_global->compress,
+ journal_remote_server_global->seal);
+ if (r == -EAGAIN)
+ break;
+ else if (r < 0) {
+ log_warning("Failed to process data for connection %p", connection);
+ if (r == -E2BIG)
+ return mhd_respondf(connection,
+ r, MHD_HTTP_PAYLOAD_TOO_LARGE,
+ "Entry is too large, maximum is " STRINGIFY(DATA_SIZE_MAX) " bytes.");
+ else
+ return mhd_respondf(connection,
+ r, MHD_HTTP_UNPROCESSABLE_ENTITY,
+ "Processing failed: %m.");
+ }
+ }
+
+ if (!finished)
+ return MHD_YES;
+
+ /* The upload is finished */
+
+ remaining = journal_importer_bytes_remaining(&source->importer);
+ if (remaining > 0) {
+ log_warning("Premature EOF byte. %zu bytes lost.", remaining);
+ return mhd_respondf(connection,
+ 0, MHD_HTTP_EXPECTATION_FAILED,
+ "Premature EOF. %zu bytes of trailing data not processed.",
+ remaining);
+ }
+
+ return mhd_respond(connection, MHD_HTTP_ACCEPTED, "OK.");
+};
+
+static int request_handler(
+ void *cls,
+ struct MHD_Connection *connection,
+ const char *url,
+ const char *method,
+ const char *version,
+ const char *upload_data,
+ size_t *upload_data_size,
+ void **connection_cls) {
+
+ const char *header;
+ int r, code, fd;
+ _cleanup_free_ char *hostname = NULL;
+
+ assert(connection);
+ assert(connection_cls);
+ assert(url);
+ assert(method);
+
+ log_trace("Handling a connection %s %s %s", method, url, version);
+
+ if (*connection_cls)
+ return process_http_upload(connection,
+ upload_data, upload_data_size,
+ *connection_cls);
+
+ if (!streq(method, "POST"))
+ return mhd_respond(connection, MHD_HTTP_NOT_ACCEPTABLE, "Unsupported method.");
+
+ if (!streq(url, "/upload"))
+ return mhd_respond(connection, MHD_HTTP_NOT_FOUND, "Not found.");
+
+ header = MHD_lookup_connection_value(connection,
+ MHD_HEADER_KIND, "Content-Type");
+ if (!header || !streq(header, "application/vnd.fdo.journal"))
+ return mhd_respond(connection, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE,
+ "Content-Type: application/vnd.fdo.journal is required.");
+
+ {
+ const union MHD_ConnectionInfo *ci;
+
+ ci = MHD_get_connection_info(connection,
+ MHD_CONNECTION_INFO_CONNECTION_FD);
+ if (!ci) {
+ log_error("MHD_get_connection_info failed: cannot get remote fd");
+ return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
+ "Cannot check remote address.");
+ }
+
+ fd = ci->connect_fd;
+ assert(fd >= 0);
+ }
+
+ if (journal_remote_server_global->check_trust) {
+ r = check_permissions(connection, &code, &hostname);
+ if (r < 0)
+ return code;
+ } else {
+ r = getpeername_pretty(fd, false, &hostname);
+ if (r < 0)
+ return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
+ "Cannot check remote hostname.");
+ }
+
+ assert(hostname);
+
+ r = request_meta(connection_cls, fd, hostname);
+ if (r == -ENOMEM)
+ return respond_oom(connection);
+ else if (r < 0)
+ return mhd_respondf(connection, r, MHD_HTTP_INTERNAL_SERVER_ERROR, "%m");
+
+ hostname = NULL;
+ return MHD_YES;
+}
+
+static int setup_microhttpd_server(RemoteServer *s,
+ int fd,
+ const char *key,
+ const char *cert,
+ const char *trust) {
+ struct MHD_OptionItem opts[] = {
+ { MHD_OPTION_NOTIFY_COMPLETED, (intptr_t) request_meta_free},
+ { MHD_OPTION_EXTERNAL_LOGGER, (intptr_t) microhttpd_logger},
+ { MHD_OPTION_LISTEN_SOCKET, fd},
+ { MHD_OPTION_CONNECTION_MEMORY_LIMIT, 128*1024},
+ { MHD_OPTION_END},
+ { MHD_OPTION_END},
+ { MHD_OPTION_END},
+ { MHD_OPTION_END},
+ { MHD_OPTION_END}};
+ int opts_pos = 4;
+ int flags =
+ MHD_USE_DEBUG |
+ MHD_USE_DUAL_STACK |
+ MHD_USE_EPOLL |
+ MHD_USE_ITC;
+
+ const union MHD_DaemonInfo *info;
+ int r, epoll_fd;
+ MHDDaemonWrapper *d;
+
+ assert(fd >= 0);
+
+ r = fd_nonblock(fd, true);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make fd:%d nonblocking: %m", fd);
+
+/* MHD_OPTION_STRICT_FOR_CLIENT is introduced in microhttpd 0.9.54,
+ * and MHD_USE_PEDANTIC_CHECKS will be deprecated in future.
+ * If MHD_USE_PEDANTIC_CHECKS is '#define'd, then it is deprecated
+ * and we should use MHD_OPTION_STRICT_FOR_CLIENT. On the other hand,
+ * if MHD_USE_PEDANTIC_CHECKS is not '#define'd, then it is not
+ * deprecated yet and there exists an enum element with the same name.
+ * So we can safely use it. */
+#ifdef MHD_USE_PEDANTIC_CHECKS
+ opts[opts_pos++] = (struct MHD_OptionItem)
+ {MHD_OPTION_STRICT_FOR_CLIENT, 1};
+#else
+ flags |= MHD_USE_PEDANTIC_CHECKS;
+#endif
+
+ if (key) {
+ assert(cert);
+
+ opts[opts_pos++] = (struct MHD_OptionItem)
+ {MHD_OPTION_HTTPS_MEM_KEY, 0, (char*) key};
+ opts[opts_pos++] = (struct MHD_OptionItem)
+ {MHD_OPTION_HTTPS_MEM_CERT, 0, (char*) cert};
+
+ flags |= MHD_USE_TLS;
+
+ if (trust)
+ opts[opts_pos++] = (struct MHD_OptionItem)
+ {MHD_OPTION_HTTPS_MEM_TRUST, 0, (char*) trust};
+ }
+
+ d = new(MHDDaemonWrapper, 1);
+ if (!d)
+ return log_oom();
+
+ d->fd = (uint64_t) fd;
+
+ d->daemon = MHD_start_daemon(flags, 0,
+ NULL, NULL,
+ request_handler, NULL,
+ MHD_OPTION_ARRAY, opts,
+ MHD_OPTION_END);
+ if (!d->daemon) {
+ log_error("Failed to start µhttp daemon");
+ r = -EINVAL;
+ goto error;
+ }
+
+ log_debug("Started MHD %s daemon on fd:%d (wrapper @ %p)",
+ key ? "HTTPS" : "HTTP", fd, d);
+
+ info = MHD_get_daemon_info(d->daemon, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
+ if (!info) {
+ log_error("µhttp returned NULL daemon info");
+ r = -EOPNOTSUPP;
+ goto error;
+ }
+
+ epoll_fd = info->listen_fd;
+ if (epoll_fd < 0) {
+ log_error("µhttp epoll fd is invalid");
+ r = -EUCLEAN;
+ goto error;
+ }
+
+ r = sd_event_add_io(s->events, &d->io_event,
+ epoll_fd, EPOLLIN,
+ dispatch_http_event, d);
+ if (r < 0) {
+ log_error_errno(r, "Failed to add event callback: %m");
+ goto error;
+ }
+
+ r = sd_event_source_set_description(d->io_event, "io_event");
+ if (r < 0) {
+ log_error_errno(r, "Failed to set source name: %m");
+ goto error;
+ }
+
+ r = sd_event_add_time(s->events, &d->timer_event,
+ CLOCK_MONOTONIC, (uint64_t) -1, 0,
+ null_timer_event_handler, d);
+ if (r < 0) {
+ log_error_errno(r, "Failed to add timer_event: %m");
+ goto error;
+ }
+
+ r = sd_event_source_set_description(d->timer_event, "timer_event");
+ if (r < 0) {
+ log_error_errno(r, "Failed to set source name: %m");
+ goto error;
+ }
+
+ r = hashmap_ensure_allocated(&s->daemons, &uint64_hash_ops);
+ if (r < 0) {
+ log_oom();
+ goto error;
+ }
+
+ r = hashmap_put(s->daemons, &d->fd, d);
+ if (r < 0) {
+ log_error_errno(r, "Failed to add daemon to hashmap: %m");
+ goto error;
+ }
+
+ s->active++;
+ return 0;
+
+error:
+ MHD_stop_daemon(d->daemon);
+ free(d->daemon);
+ free(d);
+ return r;
+}
+
+static int setup_microhttpd_socket(RemoteServer *s,
+ const char *address,
+ const char *key,
+ const char *cert,
+ const char *trust) {
+ int fd;
+
+ fd = make_socket_fd(LOG_DEBUG, address, SOCK_STREAM, SOCK_CLOEXEC);
+ if (fd < 0)
+ return fd;
+
+ return setup_microhttpd_server(s, fd, key, cert, trust);
+}
+
+static int null_timer_event_handler(sd_event_source *timer_event,
+ uint64_t usec,
+ void *userdata) {
+ return dispatch_http_event(timer_event, 0, 0, userdata);
+}
+
+static int dispatch_http_event(sd_event_source *event,
+ int fd,
+ uint32_t revents,
+ void *userdata) {
+ MHDDaemonWrapper *d = userdata;
+ int r;
+ MHD_UNSIGNED_LONG_LONG timeout = ULONG_LONG_MAX;
+
+ assert(d);
+
+ r = MHD_run(d->daemon);
+ if (r == MHD_NO) {
+ log_error("MHD_run failed!");
+ // XXX: unregister daemon
+ return -EINVAL;
+ }
+ if (MHD_get_timeout(d->daemon, &timeout) == MHD_NO)
+ timeout = ULONG_LONG_MAX;
+
+ r = sd_event_source_set_time(d->timer_event, timeout);
+ if (r < 0) {
+ log_warning_errno(r, "Unable to set event loop timeout: %m, this may result in indefinite blocking!");
+ return 1;
+ }
+
+ r = sd_event_source_set_enabled(d->timer_event, SD_EVENT_ON);
+ if (r < 0)
+ log_warning_errno(r, "Unable to enable timer_event: %m, this may result in indefinite blocking!");
+
+ return 1; /* work to do */
+}
+
+/**********************************************************************
+ **********************************************************************
+ **********************************************************************/
+
+static int setup_signals(RemoteServer *s) {
+ int r;
+
+ assert(s);
+
+ assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, -1) >= 0);
+
+ r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, NULL, s);
+ if (r < 0)
+ return r;
+
+ r = sd_event_add_signal(s->events, &s->sigint_event, SIGINT, NULL, s);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static int setup_raw_socket(RemoteServer *s, const char *address) {
+ int fd;
+
+ fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM, SOCK_CLOEXEC);
+ if (fd < 0)
+ return fd;
+
+ return journal_remote_add_raw_socket(s, fd);
+}
+
+static int create_remoteserver(
+ RemoteServer *s,
+ const char* key,
+ const char* cert,
+ const char* trust) {
+
+ int r, n, fd;
+ char **file;
+
+ r = journal_remote_server_init(s, arg_output, arg_split_mode, arg_compress, arg_seal);
+ if (r < 0)
+ return r;
+
+ setup_signals(s);
+
+ n = sd_listen_fds(true);
+ if (n < 0)
+ return log_error_errno(n, "Failed to read listening file descriptors from environment: %m");
+ else
+ log_debug("Received %d descriptors", n);
+
+ if (MAX(http_socket, https_socket) >= SD_LISTEN_FDS_START + n) {
+ log_error("Received fewer sockets than expected");
+ return -EBADFD;
+ }
+
+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
+ if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {
+ log_debug("Received a listening socket (fd:%d)", fd);
+
+ if (fd == http_socket)
+ r = setup_microhttpd_server(s, fd, NULL, NULL, NULL);
+ else if (fd == https_socket)
+ r = setup_microhttpd_server(s, fd, key, cert, trust);
+ else
+ r = journal_remote_add_raw_socket(s, fd);
+ } else if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {
+ char *hostname;
+
+ r = getpeername_pretty(fd, false, &hostname);
+ if (r < 0)
+ return log_error_errno(r, "Failed to retrieve remote name: %m");
+
+ log_debug("Received a connection socket (fd:%d) from %s", fd, hostname);
+
+ r = journal_remote_add_source(s, fd, hostname, true);
+ } else {
+ log_error("Unknown socket passed on fd:%d", fd);
+
+ return -EINVAL;
+ }
+
+ if (r < 0)
+ return log_error_errno(r, "Failed to register socket (fd:%d): %m",
+ fd);
+ }
+
+ if (arg_getter) {
+ log_info("Spawning getter %s...", arg_getter);
+ fd = spawn_getter(arg_getter);
+ if (fd < 0)
+ return fd;
+
+ r = journal_remote_add_source(s, fd, (char*) arg_output, false);
+ if (r < 0)
+ return r;
+ }
+
+ if (arg_url) {
+ const char *url;
+ char *hostname, *p;
+
+ if (!strstr(arg_url, "/entries")) {
+ if (endswith(arg_url, "/"))
+ url = strjoina(arg_url, "entries");
+ else
+ url = strjoina(arg_url, "/entries");
+ }
+ else
+ url = strdupa(arg_url);
+
+ log_info("Spawning curl %s...", url);
+ fd = spawn_curl(url);
+ if (fd < 0)
+ return fd;
+
+ hostname =
+ startswith(arg_url, "https://") ?:
+ startswith(arg_url, "http://") ?:
+ arg_url;
+
+ hostname = strdupa(hostname);
+ if ((p = strchr(hostname, '/')))
+ *p = '\0';
+ if ((p = strchr(hostname, ':')))
+ *p = '\0';
+
+ r = journal_remote_add_source(s, fd, hostname, false);
+ if (r < 0)
+ return r;
+ }
+
+ if (arg_listen_raw) {
+ log_debug("Listening on a socket...");
+ r = setup_raw_socket(s, arg_listen_raw);
+ if (r < 0)
+ return r;
+ }
+
+ if (arg_listen_http) {
+ r = setup_microhttpd_socket(s, arg_listen_http, NULL, NULL, NULL);
+ if (r < 0)
+ return r;
+ }
+
+ if (arg_listen_https) {
+ r = setup_microhttpd_socket(s, arg_listen_https, key, cert, trust);
+ if (r < 0)
+ return r;
+ }
+
+ STRV_FOREACH(file, arg_files) {
+ const char *output_name;
+
+ if (streq(*file, "-")) {
+ log_debug("Using standard input as source.");
+
+ fd = STDIN_FILENO;
+ output_name = "stdin";
+ } else {
+ log_debug("Reading file %s...", *file);
+
+ fd = open(*file, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
+ if (fd < 0)
+ return log_error_errno(errno, "Failed to open %s: %m", *file);
+ output_name = *file;
+ }
+
+ r = journal_remote_add_source(s, fd, (char*) output_name, false);
+ if (r < 0)
+ return r;
+ }
+
+ if (s->active == 0) {
+ log_error("Zero sources specified");
+ return -EINVAL;
+ }
+
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE) {
+ /* In this case we know what the writer will be
+ called, so we can create it and verify that we can
+ create output as expected. */
+ r = journal_remote_get_writer(s, NULL, &s->_single_writer);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int negative_fd(const char *spec) {
+ /* Return a non-positive number as its inverse, -EINVAL otherwise. */
+
+ int fd, r;
+
+ r = safe_atoi(spec, &fd);
+ if (r < 0)
+ return r;
+
+ if (fd > 0)
+ return -EINVAL;
+ else
+ return -fd;
+}
+
+static int parse_config(void) {
+ const ConfigTableItem items[] = {
+ { "Remote", "Seal", config_parse_bool, 0, &arg_seal },
+ { "Remote", "SplitMode", config_parse_write_split_mode, 0, &arg_split_mode },
+ { "Remote", "ServerKeyFile", config_parse_path, 0, &arg_key },
+ { "Remote", "ServerCertificateFile", config_parse_path, 0, &arg_cert },
+ { "Remote", "TrustedCertificateFile", config_parse_path, 0, &arg_trust },
+ {}};
+
+ return config_parse_many_nulstr(PKGSYSCONFDIR "/journal-remote.conf",
+ CONF_PATHS_NULSTR("systemd/journal-remote.conf.d"),
+ "Remote\0", config_item_table_lookup, items,
+ CONFIG_PARSE_WARN, NULL);
+}
+
+static void help(void) {
+ printf("%s [OPTIONS...] {FILE|-}...\n\n"
+ "Write external journal events to journal file(s).\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --url=URL Read events from systemd-journal-gatewayd at URL\n"
+ " --getter=COMMAND Read events from the output of COMMAND\n"
+ " --listen-raw=ADDR Listen for connections at ADDR\n"
+ " --listen-http=ADDR Listen for HTTP connections at ADDR\n"
+ " --listen-https=ADDR Listen for HTTPS connections at ADDR\n"
+ " -o --output=FILE|DIR Write output to FILE or DIR/external-*.journal\n"
+ " --compress[=BOOL] XZ-compress the output journal (default: yes)\n"
+ " --seal[=BOOL] Use event sealing (default: no)\n"
+ " --key=FILENAME SSL key in PEM format (default:\n"
+ " \"" PRIV_KEY_FILE "\")\n"
+ " --cert=FILENAME SSL certificate in PEM format (default:\n"
+ " \"" CERT_FILE "\")\n"
+ " --trust=FILENAME|all SSL CA certificate or disable checking (default:\n"
+ " \"" TRUST_FILE "\")\n"
+ " --gnutls-log=CATEGORY...\n"
+ " Specify a list of gnutls logging categories\n"
+ " --split-mode=none|host How many output files to create\n"
+ "\n"
+ "Note: file descriptors from sd_listen_fds() will be consumed, too.\n"
+ , program_invocation_short_name);
+}
+
+static int parse_argv(int argc, char *argv[]) {
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_URL,
+ ARG_LISTEN_RAW,
+ ARG_LISTEN_HTTP,
+ ARG_LISTEN_HTTPS,
+ ARG_GETTER,
+ ARG_SPLIT_MODE,
+ ARG_COMPRESS,
+ ARG_SEAL,
+ ARG_KEY,
+ ARG_CERT,
+ ARG_TRUST,
+ ARG_GNUTLS_LOG,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "url", required_argument, NULL, ARG_URL },
+ { "getter", required_argument, NULL, ARG_GETTER },
+ { "listen-raw", required_argument, NULL, ARG_LISTEN_RAW },
+ { "listen-http", required_argument, NULL, ARG_LISTEN_HTTP },
+ { "listen-https", required_argument, NULL, ARG_LISTEN_HTTPS },
+ { "output", required_argument, NULL, 'o' },
+ { "split-mode", required_argument, NULL, ARG_SPLIT_MODE },
+ { "compress", optional_argument, NULL, ARG_COMPRESS },
+ { "seal", optional_argument, NULL, ARG_SEAL },
+ { "key", required_argument, NULL, ARG_KEY },
+ { "cert", required_argument, NULL, ARG_CERT },
+ { "trust", required_argument, NULL, ARG_TRUST },
+ { "gnutls-log", required_argument, NULL, ARG_GNUTLS_LOG },
+ {}
+ };
+
+ int c, r;
+ bool type_a, type_b;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "ho:", options, NULL)) >= 0)
+ switch(c) {
+ case 'h':
+ help();
+ return 0 /* done */;
+
+ case ARG_VERSION:
+ return version();
+
+ case ARG_URL:
+ if (arg_url) {
+ log_error("cannot currently set more than one --url");
+ return -EINVAL;
+ }
+
+ arg_url = optarg;
+ break;
+
+ case ARG_GETTER:
+ if (arg_getter) {
+ log_error("cannot currently use --getter more than once");
+ return -EINVAL;
+ }
+
+ arg_getter = optarg;
+ break;
+
+ case ARG_LISTEN_RAW:
+ if (arg_listen_raw) {
+ log_error("cannot currently use --listen-raw more than once");
+ return -EINVAL;
+ }
+
+ arg_listen_raw = optarg;
+ break;
+
+ case ARG_LISTEN_HTTP:
+ if (arg_listen_http || http_socket >= 0) {
+ log_error("cannot currently use --listen-http more than once");
+ return -EINVAL;
+ }
+
+ r = negative_fd(optarg);
+ if (r >= 0)
+ http_socket = r;
+ else
+ arg_listen_http = optarg;
+ break;
+
+ case ARG_LISTEN_HTTPS:
+ if (arg_listen_https || https_socket >= 0) {
+ log_error("cannot currently use --listen-https more than once");
+ return -EINVAL;
+ }
+
+ r = negative_fd(optarg);
+ if (r >= 0)
+ https_socket = r;
+ else
+ arg_listen_https = optarg;
+
+ break;
+
+ case ARG_KEY:
+ if (arg_key) {
+ log_error("Key file specified twice");
+ return -EINVAL;
+ }
+
+ arg_key = strdup(optarg);
+ if (!arg_key)
+ return log_oom();
+
+ break;
+
+ case ARG_CERT:
+ if (arg_cert) {
+ log_error("Certificate file specified twice");
+ return -EINVAL;
+ }
+
+ arg_cert = strdup(optarg);
+ if (!arg_cert)
+ return log_oom();
+
+ break;
+
+ case ARG_TRUST:
+ if (arg_trust || arg_trust_all) {
+ log_error("Confusing trusted CA configuration");
+ return -EINVAL;
+ }
+
+ if (streq(optarg, "all"))
+ arg_trust_all = true;
+ else {
+#if HAVE_GNUTLS
+ arg_trust = strdup(optarg);
+ if (!arg_trust)
+ return log_oom();
+#else
+ log_error("Option --trust is not available.");
+ return -EINVAL;
+#endif
+ }
+
+ break;
+
+ case 'o':
+ if (arg_output) {
+ log_error("cannot use --output/-o more than once");
+ return -EINVAL;
+ }
+
+ arg_output = optarg;
+ break;
+
+ case ARG_SPLIT_MODE:
+ arg_split_mode = journal_write_split_mode_from_string(optarg);
+ if (arg_split_mode == _JOURNAL_WRITE_SPLIT_INVALID) {
+ log_error("Invalid split mode: %s", optarg);
+ return -EINVAL;
+ }
+ break;
+
+ case ARG_COMPRESS:
+ if (optarg) {
+ r = parse_boolean(optarg);
+ if (r < 0) {
+ log_error("Failed to parse --compress= parameter.");
+ return -EINVAL;
+ }
+
+ arg_compress = !!r;
+ } else
+ arg_compress = true;
+
+ break;
+
+ case ARG_SEAL:
+ if (optarg) {
+ r = parse_boolean(optarg);
+ if (r < 0) {
+ log_error("Failed to parse --seal= parameter.");
+ return -EINVAL;
+ }
+
+ arg_seal = !!r;
+ } else
+ arg_seal = true;
+
+ break;
+
+ case ARG_GNUTLS_LOG: {
+#if HAVE_GNUTLS
+ const char* p = optarg;
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&p, &word, ",", 0);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse --gnutls-log= argument: %m");
+
+ if (r == 0)
+ break;
+
+ if (strv_push(&arg_gnutls_log, word) < 0)
+ return log_oom();
+
+ word = NULL;
+ }
+ break;
+#else
+ log_error("Option --gnutls-log is not available.");
+ return -EINVAL;
+#endif
+ }
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ assert_not_reached("Unknown option code.");
+ }
+
+ if (optind < argc)
+ arg_files = argv + optind;
+
+ type_a = arg_getter || !strv_isempty(arg_files);
+ type_b = arg_url
+ || arg_listen_raw
+ || arg_listen_http || arg_listen_https
+ || sd_listen_fds(false) > 0;
+ if (type_a && type_b) {
+ log_error("Cannot use file input or --getter with "
+ "--arg-listen-... or socket activation.");
+ return -EINVAL;
+ }
+ if (type_a) {
+ if (!arg_output) {
+ log_error("Option --output must be specified with file input or --getter.");
+ return -EINVAL;
+ }
+
+ if (!IN_SET(arg_split_mode, JOURNAL_WRITE_SPLIT_NONE, _JOURNAL_WRITE_SPLIT_INVALID)) {
+ log_error("For active sources, only --split-mode=none is allowed.");
+ return -EINVAL;
+ }
+
+ arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
+ }
+
+ if (arg_split_mode == _JOURNAL_WRITE_SPLIT_INVALID)
+ arg_split_mode = JOURNAL_WRITE_SPLIT_HOST;
+
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE && arg_output) {
+ if (is_dir(arg_output, true) > 0) {
+ log_error("For SplitMode=none, output must be a file.");
+ return -EINVAL;
+ }
+ if (!endswith(arg_output, ".journal")) {
+ log_error("For SplitMode=none, output file name must end with .journal.");
+ return -EINVAL;
+ }
+ }
+
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST
+ && arg_output && is_dir(arg_output, true) <= 0) {
+ log_error("For SplitMode=host, output must be a directory.");
+ return -EINVAL;
+ }
+
+ log_debug("Full config: SplitMode=%s Key=%s Cert=%s Trust=%s",
+ journal_write_split_mode_to_string(arg_split_mode),
+ strna(arg_key),
+ strna(arg_cert),
+ strna(arg_trust));
+
+ return 1 /* work to do */;
+}
+
+static int load_certificates(char **key, char **cert, char **trust) {
+ int r;
+
+ r = read_full_file(arg_key ?: PRIV_KEY_FILE, key, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to read key from file '%s': %m",
+ arg_key ?: PRIV_KEY_FILE);
+
+ r = read_full_file(arg_cert ?: CERT_FILE, cert, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to read certificate from file '%s': %m",
+ arg_cert ?: CERT_FILE);
+
+ if (arg_trust_all)
+ log_info("Certificate checking disabled.");
+ else {
+ r = read_full_file(arg_trust ?: TRUST_FILE, trust, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to read CA certificate file '%s': %m",
+ arg_trust ?: TRUST_FILE);
+ }
+
+ if ((arg_listen_raw || arg_listen_http) && *trust) {
+ log_error("Option --trust makes all non-HTTPS connections untrusted.");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv) {
+ RemoteServer s = {};
+ int r;
+ _cleanup_free_ char *key = NULL, *cert = NULL, *trust = NULL;
+
+ log_show_color(true);
+ log_parse_environment();
+
+ r = parse_config();
+ if (r < 0)
+ return EXIT_FAILURE;
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+
+ if (arg_listen_http || arg_listen_https) {
+ r = setup_gnutls_logger(arg_gnutls_log);
+ if (r < 0)
+ return EXIT_FAILURE;
+ }
+
+ if (arg_listen_https || https_socket >= 0)
+ if (load_certificates(&key, &cert, &trust) < 0)
+ return EXIT_FAILURE;
+
+ if (create_remoteserver(&s, key, cert, trust) < 0)
+ return EXIT_FAILURE;
+
+ r = sd_event_set_watchdog(s.events, true);
+ if (r < 0)
+ log_error_errno(r, "Failed to enable watchdog: %m");
+ else
+ log_debug("Watchdog is %sd.", enable_disable(r > 0));
+
+ log_debug("%s running as pid "PID_FMT,
+ program_invocation_short_name, getpid_cached());
+ sd_notify(false,
+ "READY=1\n"
+ "STATUS=Processing requests...");
+
+ while (s.active) {
+ r = sd_event_get_state(s.events);
+ if (r < 0)
+ break;
+ if (r == SD_EVENT_FINISHED)
+ break;
+
+ r = sd_event_run(s.events, -1);
+ if (r < 0) {
+ log_error_errno(r, "Failed to run event loop: %m");
+ break;
+ }
+ }
+
+ sd_notifyf(false,
+ "STOPPING=1\n"
+ "STATUS=Shutting down after writing %" PRIu64 " entries...", s.event_count);
+ log_info("Finishing after writing %" PRIu64 " entries", s.event_count);
+
+ journal_remote_server_destroy(&s);
+
+ free(arg_key);
+ free(arg_cert);
+ free(arg_trust);
+
+ return r >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
#include <errno.h>
#include <fcntl.h>
-#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/socket.h>
-#include <unistd.h>
#include <stdint.h>
#include "sd-daemon.h"
#include "alloc-util.h"
-#include "conf-parser.h"
#include "def.h"
#include "escape.h"
#include "fd-util.h"
-#include "fileio.h"
#include "journal-file.h"
#include "journal-remote-write.h"
#include "journal-remote.h"
#include "macro.h"
#include "parse-util.h"
#include "process-util.h"
-#include "signal-util.h"
#include "socket-util.h"
-#include "stat-util.h"
#include "stdio-util.h"
-#include "string-table.h"
#include "string-util.h"
#include "strv.h"
#define REMOTE_JOURNAL_PATH "/var/log/journal/remote"
-#define PRIV_KEY_FILE CERTIFICATE_ROOT "/private/journal-remote.pem"
-#define CERT_FILE CERTIFICATE_ROOT "/certs/journal-remote.pem"
-#define TRUST_FILE CERTIFICATE_ROOT "/ca/trusted.pem"
-
-static char* arg_url = NULL;
-static char* arg_getter = NULL;
-static char* arg_listen_raw = NULL;
-static char* arg_listen_http = NULL;
-static char* arg_listen_https = NULL;
-static char** arg_files = NULL;
-static int arg_compress = true;
-static int arg_seal = false;
-static int http_socket = -1, https_socket = -1;
-static char** arg_gnutls_log = NULL;
-
-static JournalWriteSplitMode arg_split_mode = _JOURNAL_WRITE_SPLIT_INVALID;
-static char* arg_output = NULL;
-
-static char *arg_key = NULL;
-static char *arg_cert = NULL;
-static char *arg_trust = NULL;
-static bool arg_trust_all = false;
-
-/**********************************************************************
- **********************************************************************
- **********************************************************************/
-
-static int spawn_child(const char* child, char** argv) {
- pid_t child_pid;
- int fd[2], r;
-
- if (pipe(fd) < 0)
- return log_error_errno(errno, "Failed to create pager pipe: %m");
-
- r = safe_fork("(remote)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &child_pid);
- if (r < 0) {
- safe_close_pair(fd);
- return r;
- }
-
- /* In the child */
- if (r == 0) {
- safe_close(fd[0]);
-
- r = rearrange_stdio(STDIN_FILENO, fd[1], STDERR_FILENO);
- if (r < 0) {
- log_error_errno(r, "Failed to dup pipe to stdout: %m");
- _exit(EXIT_FAILURE);
- }
-
- execvp(child, argv);
- log_error_errno(errno, "Failed to exec child %s: %m", child);
- _exit(EXIT_FAILURE);
- }
-
- safe_close(fd[1]);
-
- r = fd_nonblock(fd[0], true);
- if (r < 0)
- log_warning_errno(errno, "Failed to set child pipe to non-blocking: %m");
-
- return fd[0];
-}
-
-static int spawn_curl(const char* url) {
- char **argv = STRV_MAKE("curl",
- "-HAccept: application/vnd.fdo.journal",
- "--silent",
- "--show-error",
- url);
- int r;
-
- r = spawn_child("curl", argv);
- if (r < 0)
- log_error_errno(r, "Failed to spawn curl: %m");
- return r;
-}
-
-static int spawn_getter(const char *getter) {
- int r;
- _cleanup_strv_free_ char **words = NULL;
-
- assert(getter);
- r = strv_split_extract(&words, getter, WHITESPACE, EXTRACT_QUOTES);
- if (r < 0)
- return log_error_errno(r, "Failed to split getter option: %m");
-
- r = spawn_child(words[0], words);
- if (r < 0)
- log_error_errno(r, "Failed to spawn getter %s: %m", getter);
-
- return r;
-}
-
#define filename_escape(s) xescape((s), "/ ")
-static int open_output(Writer *w, const char* host) {
- _cleanup_free_ char *_output = NULL;
- const char *output;
+static int open_output(RemoteServer *s, Writer *w, const char* host) {
+ _cleanup_free_ char *_filename = NULL;
+ const char *filename;
int r;
- switch (arg_split_mode) {
+ switch (s->split_mode) {
case JOURNAL_WRITE_SPLIT_NONE:
- output = arg_output ?: REMOTE_JOURNAL_PATH "/remote.journal";
+ filename = s->output;
break;
case JOURNAL_WRITE_SPLIT_HOST: {
if (!name)
return log_oom();
- r = asprintf(&_output, "%s/remote-%s.journal",
- arg_output ?: REMOTE_JOURNAL_PATH,
- name);
+ r = asprintf(&_filename, "%s/remote-%s.journal", s->output, name);
if (r < 0)
return log_oom();
- output = _output;
+ filename = _filename;
break;
}
assert_not_reached("what?");
}
- r = journal_file_open_reliably(output,
+ r = journal_file_open_reliably(filename,
O_RDWR|O_CREAT, 0640,
- arg_compress, (uint64_t) -1, arg_seal,
+ s->compress, (uint64_t) -1, s->seal,
&w->metrics,
w->mmap, NULL,
NULL, &w->journal);
if (r < 0)
- log_error_errno(r, "Failed to open output journal %s: %m",
- output);
- else
- log_debug("Opened output file %s", w->journal->path);
- return r;
+ return log_error_errno(r, "Failed to open output journal %s: %m", filename);
+
+ log_debug("Opened output file %s", w->journal->path);
+ return 0;
}
/**********************************************************************
**********************************************************************/
static int init_writer_hashmap(RemoteServer *s) {
- static const struct hash_ops *hash_ops[] = {
+ static const struct hash_ops* const hash_ops[] = {
[JOURNAL_WRITE_SPLIT_NONE] = NULL,
[JOURNAL_WRITE_SPLIT_HOST] = &string_hash_ops,
};
- assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(hash_ops));
+ assert(s);
+ assert(s->split_mode >= 0 && s->split_mode < (int) ELEMENTSOF(hash_ops));
- s->writers = hashmap_new(hash_ops[arg_split_mode]);
+ s->writers = hashmap_new(hash_ops[s->split_mode]);
if (!s->writers)
return log_oom();
return 0;
}
-static int get_writer(RemoteServer *s, const char *host, Writer **writer) {
+int journal_remote_get_writer(RemoteServer *s, const char *host, Writer **writer) {
_cleanup_(writer_unrefp) Writer *w = NULL;
const void *key;
int r;
- switch(arg_split_mode) {
+ switch(s->split_mode) {
case JOURNAL_WRITE_SPLIT_NONE:
key = "one and only";
break;
if (!w)
return log_oom();
- if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST) {
+ if (s->split_mode == JOURNAL_WRITE_SPLIT_HOST) {
w->hashmap_key = strdup(key);
if (!w->hashmap_key)
return log_oom();
}
- r = open_output(w, host);
+ r = open_output(s, w, host);
if (r < 0)
return r;
**********************************************************************/
/* This should go away as soon as µhttpd allows state to be passed around. */
-static RemoteServer *server;
+RemoteServer *journal_remote_server_global;
static int dispatch_raw_source_event(sd_event_source *event,
int fd,
int fd,
uint32_t revents,
void *userdata);
-static int null_timer_event_handler(sd_event_source *s,
- uint64_t usec,
- void *userdata);
-static int dispatch_http_event(sd_event_source *event,
- int fd,
- uint32_t revents,
- void *userdata);
static int get_source_for_fd(RemoteServer *s,
int fd, char *name, RemoteSource **source) {
if (!GREEDY_REALLOC0(s->sources, s->sources_size, fd + 1))
return log_oom();
- r = get_writer(s, name, &writer);
+ r = journal_remote_get_writer(s, name, &writer);
if (r < 0)
return log_warning_errno(r, "Failed to get writer for source %s: %m",
name);
return 0;
}
-static int add_source(RemoteServer *s, int fd, char* name, bool own_name) {
-
+int journal_remote_add_source(RemoteServer *s, int fd, char* name, bool own_name) {
RemoteSource *source = NULL;
int r;
return r;
}
-static int add_raw_socket(RemoteServer *s, int fd) {
+int journal_remote_add_raw_socket(RemoteServer *s, int fd) {
int r;
_cleanup_close_ int fd_ = fd;
char name[STRLEN("raw-socket-") + DECIMAL_STR_MAX(int) + 1];
return 0;
}
-static int setup_raw_socket(RemoteServer *s, const char *address) {
- int fd;
-
- fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM, SOCK_CLOEXEC);
- if (fd < 0)
- return fd;
-
- return add_raw_socket(s, fd);
-}
-
/**********************************************************************
**********************************************************************
**********************************************************************/
-static int request_meta(void **connection_cls, int fd, char *hostname) {
- RemoteSource *source;
- Writer *writer;
- int r;
-
- assert(connection_cls);
- if (*connection_cls)
- return 0;
-
- r = get_writer(server, hostname, &writer);
- if (r < 0)
- return log_warning_errno(r, "Failed to get writer for source %s: %m",
- hostname);
-
- source = source_new(fd, true, hostname, writer);
- if (!source) {
- writer_unref(writer);
- return log_oom();
- }
-
- log_debug("Added RemoteSource as connection metadata %p", source);
-
- *connection_cls = source;
- return 0;
-}
-
-static void request_meta_free(void *cls,
- struct MHD_Connection *connection,
- void **connection_cls,
- enum MHD_RequestTerminationCode toe) {
- RemoteSource *s;
-
- assert(connection_cls);
- s = *connection_cls;
-
- if (s) {
- log_debug("Cleaning up connection metadata %p", s);
- source_free(s);
- *connection_cls = NULL;
- }
-}
-
-static int process_http_upload(
- struct MHD_Connection *connection,
- const char *upload_data,
- size_t *upload_data_size,
- RemoteSource *source) {
-
- bool finished = false;
- size_t remaining;
- int r;
-
- assert(source);
-
- log_trace("%s: connection %p, %zu bytes",
- __func__, connection, *upload_data_size);
-
- if (*upload_data_size) {
- log_trace("Received %zu bytes", *upload_data_size);
-
- r = journal_importer_push_data(&source->importer,
- upload_data, *upload_data_size);
- if (r < 0)
- return mhd_respond_oom(connection);
-
- *upload_data_size = 0;
- } else
- finished = true;
-
- for (;;) {
- r = process_source(source, arg_compress, arg_seal);
- if (r == -EAGAIN)
- break;
- else if (r < 0) {
- log_warning("Failed to process data for connection %p", connection);
- if (r == -E2BIG)
- return mhd_respondf(connection,
- r, MHD_HTTP_PAYLOAD_TOO_LARGE,
- "Entry is too large, maximum is " STRINGIFY(DATA_SIZE_MAX) " bytes.");
- else
- return mhd_respondf(connection,
- r, MHD_HTTP_UNPROCESSABLE_ENTITY,
- "Processing failed: %m.");
- }
- }
-
- if (!finished)
- return MHD_YES;
-
- /* The upload is finished */
+int journal_remote_server_init(
+ RemoteServer *s,
+ const char *output,
+ JournalWriteSplitMode split_mode,
+ bool compress,
+ bool seal) {
- remaining = journal_importer_bytes_remaining(&source->importer);
- if (remaining > 0) {
- log_warning("Premature EOF byte. %zu bytes lost.", remaining);
- return mhd_respondf(connection,
- 0, MHD_HTTP_EXPECTATION_FAILED,
- "Premature EOF. %zu bytes of trailing data not processed.",
- remaining);
- }
-
- return mhd_respond(connection, MHD_HTTP_ACCEPTED, "OK.");
-};
-
-static int request_handler(
- void *cls,
- struct MHD_Connection *connection,
- const char *url,
- const char *method,
- const char *version,
- const char *upload_data,
- size_t *upload_data_size,
- void **connection_cls) {
-
- const char *header;
- int r, code, fd;
- _cleanup_free_ char *hostname = NULL;
-
- assert(connection);
- assert(connection_cls);
- assert(url);
- assert(method);
-
- log_trace("Handling a connection %s %s %s", method, url, version);
-
- if (*connection_cls)
- return process_http_upload(connection,
- upload_data, upload_data_size,
- *connection_cls);
-
- if (!streq(method, "POST"))
- return mhd_respond(connection, MHD_HTTP_NOT_ACCEPTABLE, "Unsupported method.");
-
- if (!streq(url, "/upload"))
- return mhd_respond(connection, MHD_HTTP_NOT_FOUND, "Not found.");
-
- header = MHD_lookup_connection_value(connection,
- MHD_HEADER_KIND, "Content-Type");
- if (!header || !streq(header, "application/vnd.fdo.journal"))
- return mhd_respond(connection, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE,
- "Content-Type: application/vnd.fdo.journal is required.");
-
- {
- const union MHD_ConnectionInfo *ci;
-
- ci = MHD_get_connection_info(connection,
- MHD_CONNECTION_INFO_CONNECTION_FD);
- if (!ci) {
- log_error("MHD_get_connection_info failed: cannot get remote fd");
- return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
- "Cannot check remote address.");
- }
-
- fd = ci->connect_fd;
- assert(fd >= 0);
- }
-
- if (server->check_trust) {
- r = check_permissions(connection, &code, &hostname);
- if (r < 0)
- return code;
- } else {
- r = getpeername_pretty(fd, false, &hostname);
- if (r < 0)
- return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
- "Cannot check remote hostname.");
- }
-
- assert(hostname);
-
- r = request_meta(connection_cls, fd, hostname);
- if (r == -ENOMEM)
- return respond_oom(connection);
- else if (r < 0)
- return mhd_respondf(connection, r, MHD_HTTP_INTERNAL_SERVER_ERROR, "%m");
-
- hostname = NULL;
- return MHD_YES;
-}
-
-static int setup_microhttpd_server(RemoteServer *s,
- int fd,
- const char *key,
- const char *cert,
- const char *trust) {
- struct MHD_OptionItem opts[] = {
- { MHD_OPTION_NOTIFY_COMPLETED, (intptr_t) request_meta_free},
- { MHD_OPTION_EXTERNAL_LOGGER, (intptr_t) microhttpd_logger},
- { MHD_OPTION_LISTEN_SOCKET, fd},
- { MHD_OPTION_CONNECTION_MEMORY_LIMIT, 128*1024},
- { MHD_OPTION_END},
- { MHD_OPTION_END},
- { MHD_OPTION_END},
- { MHD_OPTION_END},
- { MHD_OPTION_END}};
- int opts_pos = 4;
- int flags =
- MHD_USE_DEBUG |
- MHD_USE_DUAL_STACK |
- MHD_USE_EPOLL |
- MHD_USE_ITC;
-
- const union MHD_DaemonInfo *info;
- int r, epoll_fd;
- MHDDaemonWrapper *d;
-
- assert(fd >= 0);
-
- r = fd_nonblock(fd, true);
- if (r < 0)
- return log_error_errno(r, "Failed to make fd:%d nonblocking: %m", fd);
-
-/* MHD_OPTION_STRICT_FOR_CLIENT is introduced in microhttpd 0.9.54,
- * and MHD_USE_PEDANTIC_CHECKS will be deprecated in future.
- * If MHD_USE_PEDANTIC_CHECKS is '#define'd, then it is deprecated
- * and we should use MHD_OPTION_STRICT_FOR_CLIENT. On the other hand,
- * if MHD_USE_PEDANTIC_CHECKS is not '#define'd, then it is not
- * deprecated yet and there exists an enum element with the same name.
- * So we can safely use it. */
-#ifdef MHD_USE_PEDANTIC_CHECKS
- opts[opts_pos++] = (struct MHD_OptionItem)
- {MHD_OPTION_STRICT_FOR_CLIENT, 1};
-#else
- flags |= MHD_USE_PEDANTIC_CHECKS;
-#endif
-
- if (key) {
- assert(cert);
-
- opts[opts_pos++] = (struct MHD_OptionItem)
- {MHD_OPTION_HTTPS_MEM_KEY, 0, (char*) key};
- opts[opts_pos++] = (struct MHD_OptionItem)
- {MHD_OPTION_HTTPS_MEM_CERT, 0, (char*) cert};
-
- flags |= MHD_USE_TLS;
-
- if (trust)
- opts[opts_pos++] = (struct MHD_OptionItem)
- {MHD_OPTION_HTTPS_MEM_TRUST, 0, (char*) trust};
- }
-
- d = new(MHDDaemonWrapper, 1);
- if (!d)
- return log_oom();
-
- d->fd = (uint64_t) fd;
-
- d->daemon = MHD_start_daemon(flags, 0,
- NULL, NULL,
- request_handler, NULL,
- MHD_OPTION_ARRAY, opts,
- MHD_OPTION_END);
- if (!d->daemon) {
- log_error("Failed to start µhttp daemon");
- r = -EINVAL;
- goto error;
- }
-
- log_debug("Started MHD %s daemon on fd:%d (wrapper @ %p)",
- key ? "HTTPS" : "HTTP", fd, d);
-
- info = MHD_get_daemon_info(d->daemon, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
- if (!info) {
- log_error("µhttp returned NULL daemon info");
- r = -EOPNOTSUPP;
- goto error;
- }
-
- epoll_fd = info->listen_fd;
- if (epoll_fd < 0) {
- log_error("µhttp epoll fd is invalid");
- r = -EUCLEAN;
- goto error;
- }
-
- r = sd_event_add_io(s->events, &d->io_event,
- epoll_fd, EPOLLIN,
- dispatch_http_event, d);
- if (r < 0) {
- log_error_errno(r, "Failed to add event callback: %m");
- goto error;
- }
-
- r = sd_event_source_set_description(d->io_event, "io_event");
- if (r < 0) {
- log_error_errno(r, "Failed to set source name: %m");
- goto error;
- }
-
- r = sd_event_add_time(s->events, &d->timer_event,
- CLOCK_MONOTONIC, (uint64_t) -1, 0,
- null_timer_event_handler, d);
- if (r < 0) {
- log_error_errno(r, "Failed to add timer_event: %m");
- goto error;
- }
-
- r = sd_event_source_set_description(d->timer_event, "timer_event");
- if (r < 0) {
- log_error_errno(r, "Failed to set source name: %m");
- goto error;
- }
-
- r = hashmap_ensure_allocated(&s->daemons, &uint64_hash_ops);
- if (r < 0) {
- log_oom();
- goto error;
- }
-
- r = hashmap_put(s->daemons, &d->fd, d);
- if (r < 0) {
- log_error_errno(r, "Failed to add daemon to hashmap: %m");
- goto error;
- }
-
- s->active++;
- return 0;
-
-error:
- MHD_stop_daemon(d->daemon);
- free(d->daemon);
- free(d);
- return r;
-}
-
-static int setup_microhttpd_socket(RemoteServer *s,
- const char *address,
- const char *key,
- const char *cert,
- const char *trust) {
- int fd;
-
- fd = make_socket_fd(LOG_DEBUG, address, SOCK_STREAM, SOCK_CLOEXEC);
- if (fd < 0)
- return fd;
-
- return setup_microhttpd_server(s, fd, key, cert, trust);
-}
-
-static int null_timer_event_handler(sd_event_source *timer_event,
- uint64_t usec,
- void *userdata) {
- return dispatch_http_event(timer_event, 0, 0, userdata);
-}
-
-static int dispatch_http_event(sd_event_source *event,
- int fd,
- uint32_t revents,
- void *userdata) {
- MHDDaemonWrapper *d = userdata;
- int r;
- MHD_UNSIGNED_LONG_LONG timeout = ULONG_LONG_MAX;
-
- assert(d);
-
- r = MHD_run(d->daemon);
- if (r == MHD_NO) {
- log_error("MHD_run failed!");
- // XXX: unregister daemon
- return -EINVAL;
- }
- if (MHD_get_timeout(d->daemon, &timeout) == MHD_NO)
- timeout = ULONG_LONG_MAX;
-
- r = sd_event_source_set_time(d->timer_event, timeout);
- if (r < 0) {
- log_warning_errno(r, "Unable to set event loop timeout: %m, this may result in indefinite blocking!");
- return 1;
- }
-
- r = sd_event_source_set_enabled(d->timer_event, SD_EVENT_ON);
- if (r < 0)
- log_warning_errno(r, "Unable to enable timer_event: %m, this may result in indefinite blocking!");
-
- return 1; /* work to do */
-}
-
-/**********************************************************************
- **********************************************************************
- **********************************************************************/
-
-static int setup_signals(RemoteServer *s) {
int r;
assert(s);
- assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, -1) >= 0);
+ assert(journal_remote_server_global == NULL);
+ journal_remote_server_global = s;
- r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, NULL, s);
- if (r < 0)
- return r;
+ s->split_mode = split_mode;
+ s->compress = compress;
+ s->seal = seal;
- r = sd_event_add_signal(s->events, &s->sigint_event, SIGINT, NULL, s);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int negative_fd(const char *spec) {
- /* Return a non-positive number as its inverse, -EINVAL otherwise. */
-
- int fd, r;
-
- r = safe_atoi(spec, &fd);
- if (r < 0)
- return r;
-
- if (fd > 0)
- return -EINVAL;
+ if (output)
+ s->output = output;
+ else if (split_mode == JOURNAL_WRITE_SPLIT_NONE)
+ s->output = REMOTE_JOURNAL_PATH "/remote.journal";
+ else if (split_mode == JOURNAL_WRITE_SPLIT_HOST)
+ s->output = REMOTE_JOURNAL_PATH;
else
- return -fd;
-}
-
-static int remoteserver_init(RemoteServer *s,
- const char* key,
- const char* cert,
- const char* trust) {
- int r, n, fd;
- char **file;
-
- assert(s);
-
- if ((arg_listen_raw || arg_listen_http) && trust) {
- log_error("Option --trust makes all non-HTTPS connections untrusted.");
- return -EINVAL;
- }
+ assert_not_reached("bad split mode");
r = sd_event_default(&s->events);
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
- setup_signals(s);
-
- assert(server == NULL);
- server = s;
-
r = init_writer_hashmap(s);
if (r < 0)
return r;
- n = sd_listen_fds(true);
- if (n < 0)
- return log_error_errno(n, "Failed to read listening file descriptors from environment: %m");
- else
- log_debug("Received %d descriptors", n);
-
- if (MAX(http_socket, https_socket) >= SD_LISTEN_FDS_START + n) {
- log_error("Received fewer sockets than expected");
- return -EBADFD;
- }
-
- for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
- if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {
- log_debug("Received a listening socket (fd:%d)", fd);
-
- if (fd == http_socket)
- r = setup_microhttpd_server(s, fd, NULL, NULL, NULL);
- else if (fd == https_socket)
- r = setup_microhttpd_server(s, fd, key, cert, trust);
- else
- r = add_raw_socket(s, fd);
- } else if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {
- char *hostname;
-
- r = getpeername_pretty(fd, false, &hostname);
- if (r < 0)
- return log_error_errno(r, "Failed to retrieve remote name: %m");
-
- log_debug("Received a connection socket (fd:%d) from %s", fd, hostname);
-
- r = add_source(s, fd, hostname, true);
- } else {
- log_error("Unknown socket passed on fd:%d", fd);
-
- return -EINVAL;
- }
-
- if (r < 0)
- return log_error_errno(r, "Failed to register socket (fd:%d): %m",
- fd);
- }
-
- if (arg_getter) {
- log_info("Spawning getter %s...", arg_getter);
- fd = spawn_getter(arg_getter);
- if (fd < 0)
- return fd;
-
- r = add_source(s, fd, (char*) arg_output, false);
- if (r < 0)
- return r;
- }
-
- if (arg_url) {
- const char *url;
- char *hostname, *p;
-
- if (!strstr(arg_url, "/entries")) {
- if (endswith(arg_url, "/"))
- url = strjoina(arg_url, "entries");
- else
- url = strjoina(arg_url, "/entries");
- }
- else
- url = strdupa(arg_url);
-
- log_info("Spawning curl %s...", url);
- fd = spawn_curl(url);
- if (fd < 0)
- return fd;
-
- hostname =
- startswith(arg_url, "https://") ?:
- startswith(arg_url, "http://") ?:
- arg_url;
-
- hostname = strdupa(hostname);
- if ((p = strchr(hostname, '/')))
- *p = '\0';
- if ((p = strchr(hostname, ':')))
- *p = '\0';
-
- r = add_source(s, fd, hostname, false);
- if (r < 0)
- return r;
- }
-
- if (arg_listen_raw) {
- log_debug("Listening on a socket...");
- r = setup_raw_socket(s, arg_listen_raw);
- if (r < 0)
- return r;
- }
-
- if (arg_listen_http) {
- r = setup_microhttpd_socket(s, arg_listen_http, NULL, NULL, NULL);
- if (r < 0)
- return r;
- }
-
- if (arg_listen_https) {
- r = setup_microhttpd_socket(s, arg_listen_https, key, cert, trust);
- if (r < 0)
- return r;
- }
-
- STRV_FOREACH(file, arg_files) {
- const char *output_name;
-
- if (streq(*file, "-")) {
- log_debug("Using standard input as source.");
-
- fd = STDIN_FILENO;
- output_name = "stdin";
- } else {
- log_debug("Reading file %s...", *file);
-
- fd = open(*file, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
- if (fd < 0)
- return log_error_errno(errno, "Failed to open %s: %m", *file);
- output_name = *file;
- }
-
- r = add_source(s, fd, (char*) output_name, false);
- if (r < 0)
- return r;
- }
-
- if (s->active == 0) {
- log_error("Zero sources specified");
- return -EINVAL;
- }
-
- if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE) {
- /* In this case we know what the writer will be
- called, so we can create it and verify that we can
- create output as expected. */
- r = get_writer(s, NULL, &s->_single_writer);
- if (r < 0)
- return r;
- }
-
return 0;
}
free(d);
}
-static void server_destroy(RemoteServer *s) {
+RemoteServer* journal_remote_server_destroy(RemoteServer *s) {
size_t i;
hashmap_free_with_destructor(s->daemons, MHDDaemonWrapper_free);
sd_event_source_unref(s->listen_event);
sd_event_unref(s->events);
+ if (s == journal_remote_server_global)
+ journal_remote_server_global = NULL;
+
/* fds that we're listening on remain open... */
+ return NULL;
}
/**********************************************************************
source = s->sources[fd];
assert(source->importer.fd == fd);
- r = process_source(source, arg_compress, arg_seal);
+ r = process_source(source, s->compress, s->seal);
if (journal_importer_eof(&source->importer)) {
size_t remaining;
return 0;
} else if (r < 0) {
log_debug_errno(r, "Closing connection: %m");
- remove_source(server, fd);
+ remove_source(s, fd);
return 0;
} else
return 1;
/* Make sure event stays around even if source is destroyed */
sd_event_source_ref(event);
- r = handle_raw_source(event, source->importer.fd, EPOLLIN, server);
+ r = handle_raw_source(event, source->importer.fd, EPOLLIN, journal_remote_server_global);
if (r != 1)
/* No more data for now */
sd_event_source_set_enabled(event, SD_EVENT_OFF);
assert(source->event);
assert(source->buffer_event);
- r = handle_raw_source(event, fd, EPOLLIN, server);
+ r = handle_raw_source(event, fd, EPOLLIN, journal_remote_server_global);
if (r == 1)
/* Might have more data. We need to rerun the handler
* until we are sure the buffer is exhausted. */
void *userdata) {
RemoteSource *source = userdata;
- return handle_raw_source(event, source->importer.fd, EPOLLIN, server);
+ return handle_raw_source(event, source->importer.fd, EPOLLIN, journal_remote_server_global);
}
static int accept_connection(const char* type, int fd,
if (fd2 < 0)
return fd2;
- return add_source(s, fd2, hostname, true);
-}
-
-/**********************************************************************
- **********************************************************************
- **********************************************************************/
-
-static const char* const journal_write_split_mode_table[_JOURNAL_WRITE_SPLIT_MAX] = {
- [JOURNAL_WRITE_SPLIT_NONE] = "none",
- [JOURNAL_WRITE_SPLIT_HOST] = "host",
-};
-
-DEFINE_PRIVATE_STRING_TABLE_LOOKUP(journal_write_split_mode, JournalWriteSplitMode);
-static DEFINE_CONFIG_PARSE_ENUM(config_parse_write_split_mode,
- journal_write_split_mode,
- JournalWriteSplitMode,
- "Failed to parse split mode setting");
-
-static int parse_config(void) {
- const ConfigTableItem items[] = {
- { "Remote", "Seal", config_parse_bool, 0, &arg_seal },
- { "Remote", "SplitMode", config_parse_write_split_mode, 0, &arg_split_mode },
- { "Remote", "ServerKeyFile", config_parse_path, 0, &arg_key },
- { "Remote", "ServerCertificateFile", config_parse_path, 0, &arg_cert },
- { "Remote", "TrustedCertificateFile", config_parse_path, 0, &arg_trust },
- {}};
-
- return config_parse_many_nulstr(PKGSYSCONFDIR "/journal-remote.conf",
- CONF_PATHS_NULSTR("systemd/journal-remote.conf.d"),
- "Remote\0", config_item_table_lookup, items,
- CONFIG_PARSE_WARN, NULL);
-}
-
-static void help(void) {
- printf("%s [OPTIONS...] {FILE|-}...\n\n"
- "Write external journal events to journal file(s).\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " --url=URL Read events from systemd-journal-gatewayd at URL\n"
- " --getter=COMMAND Read events from the output of COMMAND\n"
- " --listen-raw=ADDR Listen for connections at ADDR\n"
- " --listen-http=ADDR Listen for HTTP connections at ADDR\n"
- " --listen-https=ADDR Listen for HTTPS connections at ADDR\n"
- " -o --output=FILE|DIR Write output to FILE or DIR/external-*.journal\n"
- " --compress[=BOOL] XZ-compress the output journal (default: yes)\n"
- " --seal[=BOOL] Use event sealing (default: no)\n"
- " --key=FILENAME SSL key in PEM format (default:\n"
- " \"" PRIV_KEY_FILE "\")\n"
- " --cert=FILENAME SSL certificate in PEM format (default:\n"
- " \"" CERT_FILE "\")\n"
- " --trust=FILENAME|all SSL CA certificate or disable checking (default:\n"
- " \"" TRUST_FILE "\")\n"
- " --gnutls-log=CATEGORY...\n"
- " Specify a list of gnutls logging categories\n"
- " --split-mode=none|host How many output files to create\n"
- "\n"
- "Note: file descriptors from sd_listen_fds() will be consumed, too.\n"
- , program_invocation_short_name);
-}
-
-static int parse_argv(int argc, char *argv[]) {
- enum {
- ARG_VERSION = 0x100,
- ARG_URL,
- ARG_LISTEN_RAW,
- ARG_LISTEN_HTTP,
- ARG_LISTEN_HTTPS,
- ARG_GETTER,
- ARG_SPLIT_MODE,
- ARG_COMPRESS,
- ARG_SEAL,
- ARG_KEY,
- ARG_CERT,
- ARG_TRUST,
- ARG_GNUTLS_LOG,
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "url", required_argument, NULL, ARG_URL },
- { "getter", required_argument, NULL, ARG_GETTER },
- { "listen-raw", required_argument, NULL, ARG_LISTEN_RAW },
- { "listen-http", required_argument, NULL, ARG_LISTEN_HTTP },
- { "listen-https", required_argument, NULL, ARG_LISTEN_HTTPS },
- { "output", required_argument, NULL, 'o' },
- { "split-mode", required_argument, NULL, ARG_SPLIT_MODE },
- { "compress", optional_argument, NULL, ARG_COMPRESS },
- { "seal", optional_argument, NULL, ARG_SEAL },
- { "key", required_argument, NULL, ARG_KEY },
- { "cert", required_argument, NULL, ARG_CERT },
- { "trust", required_argument, NULL, ARG_TRUST },
- { "gnutls-log", required_argument, NULL, ARG_GNUTLS_LOG },
- {}
- };
-
- int c, r;
- bool type_a, type_b;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "ho:", options, NULL)) >= 0)
- switch(c) {
- case 'h':
- help();
- return 0 /* done */;
-
- case ARG_VERSION:
- return version();
-
- case ARG_URL:
- if (arg_url) {
- log_error("cannot currently set more than one --url");
- return -EINVAL;
- }
-
- arg_url = optarg;
- break;
-
- case ARG_GETTER:
- if (arg_getter) {
- log_error("cannot currently use --getter more than once");
- return -EINVAL;
- }
-
- arg_getter = optarg;
- break;
-
- case ARG_LISTEN_RAW:
- if (arg_listen_raw) {
- log_error("cannot currently use --listen-raw more than once");
- return -EINVAL;
- }
-
- arg_listen_raw = optarg;
- break;
-
- case ARG_LISTEN_HTTP:
- if (arg_listen_http || http_socket >= 0) {
- log_error("cannot currently use --listen-http more than once");
- return -EINVAL;
- }
-
- r = negative_fd(optarg);
- if (r >= 0)
- http_socket = r;
- else
- arg_listen_http = optarg;
- break;
-
- case ARG_LISTEN_HTTPS:
- if (arg_listen_https || https_socket >= 0) {
- log_error("cannot currently use --listen-https more than once");
- return -EINVAL;
- }
-
- r = negative_fd(optarg);
- if (r >= 0)
- https_socket = r;
- else
- arg_listen_https = optarg;
-
- break;
-
- case ARG_KEY:
- if (arg_key) {
- log_error("Key file specified twice");
- return -EINVAL;
- }
-
- arg_key = strdup(optarg);
- if (!arg_key)
- return log_oom();
-
- break;
-
- case ARG_CERT:
- if (arg_cert) {
- log_error("Certificate file specified twice");
- return -EINVAL;
- }
-
- arg_cert = strdup(optarg);
- if (!arg_cert)
- return log_oom();
-
- break;
-
- case ARG_TRUST:
- if (arg_trust || arg_trust_all) {
- log_error("Confusing trusted CA configuration");
- return -EINVAL;
- }
-
- if (streq(optarg, "all"))
- arg_trust_all = true;
- else {
-#if HAVE_GNUTLS
- arg_trust = strdup(optarg);
- if (!arg_trust)
- return log_oom();
-#else
- log_error("Option --trust is not available.");
- return -EINVAL;
-#endif
- }
-
- break;
-
- case 'o':
- if (arg_output) {
- log_error("cannot use --output/-o more than once");
- return -EINVAL;
- }
-
- arg_output = optarg;
- break;
-
- case ARG_SPLIT_MODE:
- arg_split_mode = journal_write_split_mode_from_string(optarg);
- if (arg_split_mode == _JOURNAL_WRITE_SPLIT_INVALID) {
- log_error("Invalid split mode: %s", optarg);
- return -EINVAL;
- }
- break;
-
- case ARG_COMPRESS:
- if (optarg) {
- r = parse_boolean(optarg);
- if (r < 0) {
- log_error("Failed to parse --compress= parameter.");
- return -EINVAL;
- }
-
- arg_compress = !!r;
- } else
- arg_compress = true;
-
- break;
-
- case ARG_SEAL:
- if (optarg) {
- r = parse_boolean(optarg);
- if (r < 0) {
- log_error("Failed to parse --seal= parameter.");
- return -EINVAL;
- }
-
- arg_seal = !!r;
- } else
- arg_seal = true;
-
- break;
-
- case ARG_GNUTLS_LOG: {
-#if HAVE_GNUTLS
- const char* p = optarg;
- for (;;) {
- _cleanup_free_ char *word = NULL;
-
- r = extract_first_word(&p, &word, ",", 0);
- if (r < 0)
- return log_error_errno(r, "Failed to parse --gnutls-log= argument: %m");
-
- if (r == 0)
- break;
-
- if (strv_push(&arg_gnutls_log, word) < 0)
- return log_oom();
-
- word = NULL;
- }
- break;
-#else
- log_error("Option --gnutls-log is not available.");
- return -EINVAL;
-#endif
- }
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unknown option code.");
- }
-
- if (optind < argc)
- arg_files = argv + optind;
-
- type_a = arg_getter || !strv_isempty(arg_files);
- type_b = arg_url
- || arg_listen_raw
- || arg_listen_http || arg_listen_https
- || sd_listen_fds(false) > 0;
- if (type_a && type_b) {
- log_error("Cannot use file input or --getter with "
- "--arg-listen-... or socket activation.");
- return -EINVAL;
- }
- if (type_a) {
- if (!arg_output) {
- log_error("Option --output must be specified with file input or --getter.");
- return -EINVAL;
- }
-
- if (!IN_SET(arg_split_mode, JOURNAL_WRITE_SPLIT_NONE, _JOURNAL_WRITE_SPLIT_INVALID)) {
- log_error("For active sources, only --split-mode=none is allowed.");
- return -EINVAL;
- }
-
- arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
- }
-
- if (arg_split_mode == _JOURNAL_WRITE_SPLIT_INVALID)
- arg_split_mode = JOURNAL_WRITE_SPLIT_HOST;
-
- if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE && arg_output) {
- if (is_dir(arg_output, true) > 0) {
- log_error("For SplitMode=none, output must be a file.");
- return -EINVAL;
- }
- if (!endswith(arg_output, ".journal")) {
- log_error("For SplitMode=none, output file name must end with .journal.");
- return -EINVAL;
- }
- }
-
- if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST
- && arg_output && is_dir(arg_output, true) <= 0) {
- log_error("For SplitMode=host, output must be a directory.");
- return -EINVAL;
- }
-
- log_debug("Full config: SplitMode=%s Key=%s Cert=%s Trust=%s",
- journal_write_split_mode_to_string(arg_split_mode),
- strna(arg_key),
- strna(arg_cert),
- strna(arg_trust));
-
- return 1 /* work to do */;
-}
-
-static int load_certificates(char **key, char **cert, char **trust) {
- int r;
-
- r = read_full_file(arg_key ?: PRIV_KEY_FILE, key, NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to read key from file '%s': %m",
- arg_key ?: PRIV_KEY_FILE);
-
- r = read_full_file(arg_cert ?: CERT_FILE, cert, NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to read certificate from file '%s': %m",
- arg_cert ?: CERT_FILE);
-
- if (arg_trust_all)
- log_info("Certificate checking disabled.");
- else {
- r = read_full_file(arg_trust ?: TRUST_FILE, trust, NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to read CA certificate file '%s': %m",
- arg_trust ?: TRUST_FILE);
- }
-
- return 0;
-}
-
-int main(int argc, char **argv) {
- RemoteServer s = {};
- int r;
- _cleanup_free_ char *key = NULL, *cert = NULL, *trust = NULL;
-
- log_show_color(true);
- log_parse_environment();
-
- r = parse_config();
- if (r < 0)
- return EXIT_FAILURE;
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
-
- if (arg_listen_http || arg_listen_https) {
- r = setup_gnutls_logger(arg_gnutls_log);
- if (r < 0)
- return EXIT_FAILURE;
- }
-
- if (arg_listen_https || https_socket >= 0)
- if (load_certificates(&key, &cert, &trust) < 0)
- return EXIT_FAILURE;
-
- if (remoteserver_init(&s, key, cert, trust) < 0)
- return EXIT_FAILURE;
-
- r = sd_event_set_watchdog(s.events, true);
- if (r < 0)
- log_error_errno(r, "Failed to enable watchdog: %m");
- else
- log_debug("Watchdog is %sd.", enable_disable(r > 0));
-
- log_debug("%s running as pid "PID_FMT,
- program_invocation_short_name, getpid_cached());
- sd_notify(false,
- "READY=1\n"
- "STATUS=Processing requests...");
-
- while (s.active) {
- r = sd_event_get_state(s.events);
- if (r < 0)
- break;
- if (r == SD_EVENT_FINISHED)
- break;
-
- r = sd_event_run(s.events, -1);
- if (r < 0) {
- log_error_errno(r, "Failed to run event loop: %m");
- break;
- }
- }
-
- sd_notifyf(false,
- "STOPPING=1\n"
- "STATUS=Shutting down after writing %" PRIu64 " entries...", s.event_count);
- log_info("Finishing after writing %" PRIu64 " entries", s.event_count);
-
- server_destroy(&s);
-
- free(arg_key);
- free(arg_cert);
- free(arg_trust);
-
- return r >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+ return journal_remote_add_source(s, fd2, hostname, true);
}
projects / thirdparty / systemd.git / commitdiff
