diff options
| -rw-r--r-- | meson.build | 3 | ||||
| -rw-r--r-- | src/journal-remote/journal-remote-main.c | 1145 | ||||
| -rw-r--r-- | src/journal-remote/journal-remote.c | 1206 | ||||
| -rw-r--r-- | src/journal-remote/journal-remote.h | 23 | ||||
| -rw-r--r-- | src/journal-remote/meson.build | 27 |
5 files changed, 1242 insertions, 1162 deletions
diff --git a/meson.build b/meson.build index 83fed46cc7..ac1db5319d 100644 --- a/meson.build +++ b/meson.build @@ -2007,7 +2007,8 @@ if conf.get('ENABLE_REMOTE') == 1 and conf.get('HAVE_MICROHTTPD') == 1 s_j_remote = executable('systemd-journal-remote', systemd_journal_remote_sources, include_directories : includes, - link_with : [libshared], + link_with : [libshared, + libsystemd_journal_remote], dependencies : [threads, libmicrohttpd, libgnutls, diff --git a/src/journal-remote/journal-remote-main.c b/src/journal-remote/journal-remote-main.c new file mode 100644 index 0000000000..8fda9d1499 --- /dev/null +++ b/src/journal-remote/journal-remote-main.c @@ -0,0 +1,1145 @@ +/* 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; +} diff --git a/src/journal-remote/journal-remote.c b/src/journal-remote/journal-remote.c index 81f30748e7..9e9fe91786 100644 --- a/src/journal-remote/journal-remote.c +++ b/src/journal-remote/journal-remote.c @@ -7,23 +7,19 @@ #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" @@ -31,120 +27,23 @@ #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: { @@ -156,13 +55,11 @@ static int open_output(Writer *w, const char* 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; } @@ -170,18 +67,17 @@ static int open_output(Writer *w, const char* host) { 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; } /********************************************************************** @@ -189,26 +85,27 @@ static int open_output(Writer *w, const char* host) { **********************************************************************/ 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; @@ -230,13 +127,13 @@ static int get_writer(RemoteServer *s, const char *host, Writer **writer) { 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; @@ -255,7 +152,7 @@ static int get_writer(RemoteServer *s, const char *host, Writer **writer) { **********************************************************************/ /* 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, @@ -269,13 +166,6 @@ static int dispatch_raw_connection_event(sd_event_source *event, 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) { @@ -290,7 +180,7 @@ static int get_source_for_fd(RemoteServer *s, 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); @@ -326,8 +216,7 @@ static int remove_source(RemoteServer *s, int fd) { 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; @@ -387,7 +276,7 @@ static int add_source(RemoteServer *s, int fd, char* name, bool own_name) { 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]; @@ -411,602 +300,45 @@ static int add_raw_socket(RemoteServer *s, int fd) { 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; } @@ -1017,7 +349,7 @@ static void MHDDaemonWrapper_free(MHDDaemonWrapper *d) { 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); @@ -1035,7 +367,11 @@ static void server_destroy(RemoteServer *s) { 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; } /********************************************************************** @@ -1058,7 +394,7 @@ static int handle_raw_source(sd_event_source *event, 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; @@ -1078,7 +414,7 @@ static int handle_raw_source(sd_event_source *event, 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; @@ -1092,7 +428,7 @@ static int dispatch_raw_source_until_block(sd_event_source *event, /* 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); @@ -1112,7 +448,7 @@ static int dispatch_raw_source_event(sd_event_source *event, 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. */ @@ -1125,7 +461,7 @@ static int dispatch_blocking_source_event(sd_event_source *event, 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, @@ -1191,439 +527,5 @@ static int dispatch_raw_connection_event(sd_event_source *event, 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); } diff --git a/src/journal-remote/journal-remote.h b/src/journal-remote/journal-remote.h index f8df72ec55..72741c7fba 100644 --- a/src/journal-remote/journal-remote.h +++ b/src/journal-remote/journal-remote.h @@ -36,6 +36,27 @@ struct RemoteServer { Writer *_single_writer; uint64_t event_count; - bool check_trust; Hashmap *daemons; + + const char *output; /* either the output file or directory */ + + JournalWriteSplitMode split_mode; + bool compress; + bool seal; + bool check_trust; }; +extern RemoteServer *journal_remote_server_global; + +int journal_remote_server_init( + RemoteServer *s, + const char *output, + JournalWriteSplitMode split_mode, + bool compress, + bool seal); + +int journal_remote_get_writer(RemoteServer *s, const char *host, Writer **writer); + +int journal_remote_add_source(RemoteServer *s, int fd, char* name, bool own_name); +int journal_remote_add_raw_socket(RemoteServer *s, int fd); + +RemoteServer* journal_remote_server_destroy(RemoteServer *s); diff --git a/src/journal-remote/meson.build b/src/journal-remote/meson.build index c5a3dff635..99b9003f3b 100644 --- a/src/journal-remote/meson.build +++ b/src/journal-remote/meson.build @@ -8,15 +8,26 @@ systemd_journal_upload_sources = files(''' journal-upload-journal.c '''.split()) +libsystemd_journal_remote = static_library( + 'systemd-journal-remote', + 'journal-remote-parse.h', + 'journal-remote-parse.c', + 'journal-remote-write.h', + 'journal-remote-write.c', + 'journal-remote.h', + 'journal-remote.c', + 'microhttpd-util.h', + 'microhttpd-util.c', + include_directories : includes, + dependencies : [threads, + libmicrohttpd, + libgnutls, + libxz, + liblz4], + install : false) + systemd_journal_remote_sources = files(''' - journal-remote-parse.h - journal-remote-parse.c - journal-remote-write.h - journal-remote-write.c - journal-remote.h - journal-remote.c - microhttpd-util.h - microhttpd-util.c + journal-remote-main.c '''.split()) systemd_journal_gatewayd_sources = files(''' |