#include <errno.h>
#include <fcntl.h>
-#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
#include <unistd.h>
#include <getopt.h>
#include "sd-daemon.h"
-#include "sd-event.h"
#include "journal-file.h"
#include "journald-native.h"
#include "socket-util.h"
-#include "mkdir.h"
#include "build.h"
#include "macro.h"
#include "strv.h"
#include "fileio.h"
-#include "microhttpd-util.h"
+#include "conf-parser.h"
#ifdef HAVE_GNUTLS
#include <gnutls/gnutls.h>
#endif
-#include "journal-remote-parse.h"
+#include "journal-remote.h"
#include "journal-remote-write.h"
-#define REMOTE_JOURNAL_PATH "/var/log/journal/" SD_ID128_FORMAT_STR "/remote-%s.journal"
+#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_output = NULL;
static char* arg_url = NULL;
static char* arg_getter = NULL;
static char* arg_listen_raw = NULL;
static int http_socket = -1, https_socket = -1;
static char** arg_gnutls_log = NULL;
-static char *key_pem = NULL;
-static char *cert_pem = NULL;
-static char *trust_pem = NULL;
+static JournalWriteSplitMode arg_split_mode = JOURNAL_WRITE_SPLIT_HOST;
+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;
/**********************************************************************
**********************************************************************
pid_t parent_pid, child_pid;
int r;
- if (pipe(fd) < 0) {
- log_error("Failed to create pager pipe: %m");
- return -errno;
- }
+ if (pipe(fd) < 0)
+ return log_error_errno(errno, "Failed to create pager pipe: %m");
parent_pid = getpid();
child_pid = fork();
if (child_pid < 0) {
r = -errno;
- log_error("Failed to fork: %m");
+ log_error_errno(errno, "Failed to fork: %m");
safe_close_pair(fd);
return r;
}
if (child_pid == 0) {
r = dup2(fd[1], STDOUT_FILENO);
if (r < 0) {
- log_error("Failed to dup pipe to stdout: %m");
+ log_error_errno(errno, "Failed to dup pipe to stdout: %m");
_exit(EXIT_FAILURE);
}
_exit(EXIT_SUCCESS);
execvp(child, argv);
- log_error("Failed to exec child %s: %m", child);
+ log_error_errno(errno, "Failed to exec child %s: %m", child);
_exit(EXIT_FAILURE);
}
r = close(fd[1]);
if (r < 0)
- log_warning("Failed to close write end of pipe: %m");
+ log_warning_errno(errno, "Failed to close write end of pipe: %m");
return fd[0];
}
-static int spawn_curl(char* url) {
+static int spawn_curl(const char* url) {
char **argv = STRV_MAKE("curl",
"-HAccept: application/vnd.fdo.journal",
"--silent",
r = spawn_child("curl", argv);
if (r < 0)
- log_error("Failed to spawn curl: %m");
+ log_error_errno(errno, "Failed to spawn curl: %m");
return r;
}
-static int spawn_getter(char *getter, char *url) {
+static int spawn_getter(const char *getter, const char *url) {
int r;
_cleanup_strv_free_ char **words = NULL;
assert(getter);
- words = strv_split_quoted(getter);
- if (!words)
- return log_oom();
+ r = strv_split_quoted(&words, getter, false);
+ if (r < 0)
+ return log_error_errno(r, "Failed to split getter option: %m");
+
+ r = strv_extend(&words, url);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create command line: %m");
r = spawn_child(words[0], words);
if (r < 0)
- log_error("Failed to spawn getter %s: %m", getter);
+ log_error_errno(errno, "Failed to spawn getter %s: %m", getter);
return r;
}
-static int open_output(Writer *s, const char* url) {
- _cleanup_free_ char *name, *output = NULL;
- char *c;
+#define filename_escape(s) xescape((s), "/ ")
+
+static int open_output(Writer *w, const char* host) {
+ _cleanup_free_ char *_output = NULL;
+ const char *output;
int r;
- assert(url);
- name = strdup(url);
- if (!name)
- return log_oom();
+ switch (arg_split_mode) {
+ case JOURNAL_WRITE_SPLIT_NONE:
+ output = arg_output ?: REMOTE_JOURNAL_PATH "/remote.journal";
+ break;
- for(c = name; *c; c++) {
- if (*c == '/' || *c == ':' || *c == ' ')
- *c = '~';
- else if (*c == '?') {
- *c = '\0';
- break;
- }
- }
+ case JOURNAL_WRITE_SPLIT_HOST: {
+ _cleanup_free_ char *name;
- if (!arg_output) {
- sd_id128_t machine;
- r = sd_id128_get_machine(&machine);
- if (r < 0) {
- log_error("failed to determine machine ID128: %s", strerror(-r));
- return r;
- }
+ assert(host);
- r = asprintf(&output, REMOTE_JOURNAL_PATH,
- SD_ID128_FORMAT_VAL(machine), name);
+ name = filename_escape(host);
+ if (!name)
+ return log_oom();
+
+ r = asprintf(&_output, "%s/remote-%s.journal",
+ arg_output ?: REMOTE_JOURNAL_PATH,
+ name);
if (r < 0)
return log_oom();
- } else {
- r = is_dir(arg_output, true);
- if (r > 0) {
- r = asprintf(&output,
- "%s/remote-%s.journal", arg_output, name);
- if (r < 0)
- return log_oom();
- } else {
- output = strdup(arg_output);
- if (!output)
- return log_oom();
- }
+
+ output = _output;
+ break;
+ }
+
+ default:
+ assert_not_reached("what?");
}
r = journal_file_open_reliably(output,
O_RDWR|O_CREAT, 0640,
arg_compress, arg_seal,
- &s->metrics,
- s->mmap,
- NULL, &s->journal);
+ &w->metrics,
+ w->mmap,
+ NULL, &w->journal);
if (r < 0)
- log_error("Failed to open output journal %s: %s",
- arg_output, strerror(-r));
+ log_error_errno(r, "Failed to open output journal %s: %m",
+ output);
else
- log_info("Opened output file %s", s->journal->path);
+ log_debug("Opened output file %s", w->journal->path);
return r;
}
**********************************************************************
**********************************************************************/
-typedef struct MHDDaemonWrapper {
- uint64_t fd;
- struct MHD_Daemon *daemon;
+static int init_writer_hashmap(RemoteServer *s) {
+ static const struct hash_ops *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));
+
+ s->writers = hashmap_new(hash_ops[arg_split_mode]);
+ if (!s->writers)
+ return log_oom();
+
+ return 0;
+}
+
+static int get_writer(RemoteServer *s, const char *host,
+ Writer **writer) {
+ const void *key;
+ _cleanup_writer_unref_ Writer *w = NULL;
+ int r;
+
+ switch(arg_split_mode) {
+ case JOURNAL_WRITE_SPLIT_NONE:
+ key = "one and only";
+ break;
+
+ case JOURNAL_WRITE_SPLIT_HOST:
+ assert(host);
+ key = host;
+ break;
+
+ default:
+ assert_not_reached("what split mode?");
+ }
+
+ w = hashmap_get(s->writers, key);
+ if (w)
+ writer_ref(w);
+ else {
+ w = writer_new(s);
+ if (!w)
+ return log_oom();
- sd_event_source *event;
-} MHDDaemonWrapper;
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_HOST) {
+ w->hashmap_key = strdup(key);
+ if (!w->hashmap_key)
+ return log_oom();
+ }
-typedef struct RemoteServer {
- RemoteSource **sources;
- size_t sources_size;
- size_t active;
+ r = open_output(w, host);
+ if (r < 0)
+ return r;
- sd_event *events;
- sd_event_source *sigterm_event, *sigint_event, *listen_event;
+ r = hashmap_put(s->writers, w->hashmap_key ?: key, w);
+ if (r < 0)
+ return r;
+ }
- Writer writer;
+ *writer = w;
+ w = NULL;
+ return 0;
+}
- Hashmap *daemons;
-} RemoteServer;
+/**********************************************************************
+ **********************************************************************
+ **********************************************************************/
/* This should go away as soon as µhttpd allows state to be passed around. */
static RemoteServer *server;
int fd,
uint32_t revents,
void *userdata);
+static int dispatch_raw_source_until_block(sd_event_source *event,
+ void *userdata);
+static int dispatch_blocking_source_event(sd_event_source *event,
+ void *userdata);
static int dispatch_raw_connection_event(sd_event_source *event,
int fd,
uint32_t revents,
uint32_t revents,
void *userdata);
-static int get_source_for_fd(RemoteServer *s, int fd, RemoteSource **source) {
+static int get_source_for_fd(RemoteServer *s,
+ int fd, char *name, RemoteSource **source) {
+ Writer *writer;
+ int r;
+
+ /* This takes ownership of name, but only on success. */
+
assert(fd >= 0);
assert(source);
if (!GREEDY_REALLOC0(s->sources, s->sources_size, fd + 1))
return log_oom();
+ r = get_writer(s, name, &writer);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to get writer for source %s: %m",
+ name);
+
if (s->sources[fd] == NULL) {
- s->sources[fd] = new0(RemoteSource, 1);
- if (!s->sources[fd])
+ s->sources[fd] = source_new(fd, false, name, writer);
+ if (!s->sources[fd]) {
+ writer_unref(writer);
return log_oom();
- s->sources[fd]->fd = -1;
+ }
+
s->active++;
}
source = s->sources[fd];
if (source) {
+ /* this closes fd too */
source_free(source);
s->sources[fd] = NULL;
s->active--;
}
- close(fd);
-
return 0;
}
-static int add_source(RemoteServer *s, int fd, const char* name) {
- RemoteSource *source = NULL;
- _cleanup_free_ char *realname = NULL;
+static int add_source(RemoteServer *s, int fd, char* name, bool own_name) {
+
+ RemoteSource *source;
int r;
+ /* This takes ownership of name, even on failure, if own_name is true. */
+
assert(s);
assert(fd >= 0);
+ assert(name);
- if (name) {
- realname = strdup(name);
- if (!realname)
- return log_oom();
- } else {
- r = asprintf(&realname, "fd:%d", fd);
- if (r < 0)
+ if (!own_name) {
+ name = strdup(name);
+ if (!name)
return log_oom();
}
- log_debug("Creating source for fd:%d (%s)", fd, realname);
-
- r = get_source_for_fd(s, fd, &source);
+ r = get_source_for_fd(s, fd, name, &source);
if (r < 0) {
- log_error("Failed to create source for fd:%d (%s)", fd, realname);
+ log_error_errno(r, "Failed to create source for fd:%d (%s): %m",
+ fd, name);
+ free(name);
return r;
}
- assert(source);
- assert(source->fd < 0);
- source->fd = fd;
r = sd_event_add_io(s->events, &source->event,
- fd, EPOLLIN, dispatch_raw_source_event, s);
+ fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI,
+ dispatch_raw_source_event, source);
+ if (r == 0) {
+ /* Add additional source for buffer processing. It will be
+ * enabled later. */
+ r = sd_event_add_defer(s->events, &source->buffer_event,
+ dispatch_raw_source_until_block, source);
+ if (r == 0)
+ sd_event_source_set_enabled(source->buffer_event, SD_EVENT_OFF);
+ } else if (r == -EPERM) {
+ log_debug("Falling back to sd_event_add_defer for fd:%d (%s)", fd, name);
+ r = sd_event_add_defer(s->events, &source->event,
+ dispatch_blocking_source_event, source);
+ if (r == 0)
+ sd_event_source_set_enabled(source->event, SD_EVENT_ON);
+ }
if (r < 0) {
- log_error("Failed to register event source for fd:%d: %s",
- fd, strerror(-r));
+ log_error_errno(r, "Failed to register event source for fd:%d: %m",
+ fd);
+ goto error;
+ }
+
+ r = sd_event_source_set_description(source->event, name);
+ if (r < 0) {
+ log_error_errno(r, "Failed to set source name for fd:%d: %m", fd);
goto error;
}
static int add_raw_socket(RemoteServer *s, int fd) {
int r;
+ _cleanup_close_ int fd_ = fd;
+ char name[sizeof("raw-socket-")-1 + DECIMAL_STR_MAX(int) + 1];
+
+ assert(fd >= 0);
- r = sd_event_add_io(s->events, &s->listen_event, fd, EPOLLIN,
+ r = sd_event_add_io(s->events, &s->listen_event,
+ fd, EPOLLIN,
dispatch_raw_connection_event, s);
- if (r < 0) {
- close(fd);
+ if (r < 0)
return r;
- }
+ xsprintf(name, "raw-socket-%d", fd);
+
+ r = sd_event_source_set_description(s->listen_event, name);
+ if (r < 0)
+ return r;
+
+ fd_ = -1;
s->active ++;
return 0;
}
**********************************************************************
**********************************************************************/
-static RemoteSource *request_meta(void **connection_cls) {
+static int request_meta(void **connection_cls, int fd, char *hostname) {
RemoteSource *source;
+ Writer *writer;
+ int r;
assert(connection_cls);
if (*connection_cls)
- return *connection_cls;
+ return 0;
- source = new0(RemoteSource, 1);
- if (!source)
- return NULL;
- source->fd = -1;
+ 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 source;
+ return 0;
}
static void request_meta_free(void *cls,
assert(connection_cls);
s = *connection_cls;
- log_debug("Cleaning up connection metadata %p", s);
- source_free(s);
- *connection_cls = NULL;
+ if (s) {
+ log_debug("Cleaning up connection metadata %p", s);
+ source_free(s);
+ *connection_cls = NULL;
+ }
}
static int process_http_upload(
RemoteSource *source) {
bool finished = false;
+ size_t remaining;
int r;
assert(source);
- log_debug("request_handler_upload: connection %p, %zu bytes",
- connection, *upload_data_size);
+ log_trace("%s: connection %p, %zu bytes",
+ __func__, connection, *upload_data_size);
if (*upload_data_size) {
- log_info("Received %zu bytes", *upload_data_size);
+ log_trace("Received %zu bytes", *upload_data_size);
r = push_data(source, upload_data, *upload_data_size);
if (r < 0)
finished = true;
while (true) {
- r = process_source(source, &server->writer, arg_compress, arg_seal);
+ r = process_source(source, arg_compress, arg_seal);
if (r == -EAGAIN || r == -EWOULDBLOCK)
break;
else if (r < 0) {
/* The upload is finished */
- if (source_non_empty(source)) {
- log_warning("EOF reached with incomplete data");
- return mhd_respond(connection, MHD_HTTP_EXPECTATION_FAILED,
- "Trailing data not processed.");
+ remaining = source_non_empty(source);
+ if (remaining > 0) {
+ log_warning("Premature EOFbyte. %zu bytes lost.", remaining);
+ return mhd_respondf(connection, MHD_HTTP_EXPECTATION_FAILED,
+ "Premature EOF. %zu bytes of trailing data not processed.",
+ remaining);
}
return mhd_respond(connection, MHD_HTTP_ACCEPTED, "OK.\n");
void **connection_cls) {
const char *header;
- int r ,code;
+ int r, code, fd;
+ _cleanup_free_ char *hostname = NULL;
assert(connection);
assert(connection_cls);
assert(url);
assert(method);
- log_debug("Handling a connection %s %s %s", method, url, version);
+ log_trace("Handling a connection %s %s %s", method, url, version);
if (*connection_cls)
return process_http_upload(connection,
"Content-Type: application/vnd.fdo.journal"
" is required.\n");
- if (trust_pem) {
- r = check_permissions(connection, &code);
+ {
+ 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 = getnameinfo_pretty(fd, &hostname);
+ if (r < 0) {
+ return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
+ "Cannot check remote hostname");
+ }
}
- if (!request_meta(connection_cls))
+ assert(hostname);
+
+ r = request_meta(connection_cls, fd, hostname);
+ if (r == -ENOMEM)
return respond_oom(connection);
+ else if (r < 0)
+ return mhd_respond(connection, MHD_HTTP_INTERNAL_SERVER_ERROR,
+ strerror(-r));
+
+ hostname = NULL;
return MHD_YES;
}
-static int setup_microhttpd_server(RemoteServer *s, int fd, bool https) {
+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},
assert(fd >= 0);
r = fd_nonblock(fd, true);
- if (r < 0) {
- log_error("Failed to make fd:%d nonblocking: %s", fd, strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to make fd:%d nonblocking: %m", fd);
+
+ if (key) {
+ assert(cert);
- if (https) {
opts[opts_pos++] = (struct MHD_OptionItem)
- {MHD_OPTION_HTTPS_MEM_KEY, 0, key_pem};
+ {MHD_OPTION_HTTPS_MEM_KEY, 0, (char*) key};
opts[opts_pos++] = (struct MHD_OptionItem)
- {MHD_OPTION_HTTPS_MEM_CERT, 0, cert_pem};
+ {MHD_OPTION_HTTPS_MEM_CERT, 0, (char*) cert};
flags |= MHD_USE_SSL;
- if (trust_pem)
+ if (trust)
opts[opts_pos++] = (struct MHD_OptionItem)
- {MHD_OPTION_HTTPS_MEM_TRUST, 0, trust_pem};
+ {MHD_OPTION_HTTPS_MEM_TRUST, 0, (char*) trust};
}
d = new(MHDDaemonWrapper, 1);
}
log_debug("Started MHD %s daemon on fd:%d (wrapper @ %p)",
- https ? "HTTPS" : "HTTP", fd, d);
+ key ? "HTTPS" : "HTTP", fd, d);
info = MHD_get_daemon_info(d->daemon, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
}
r = sd_event_add_io(s->events, &d->event,
- epoll_fd, EPOLLIN, dispatch_http_event, d);
+ epoll_fd, EPOLLIN,
+ dispatch_http_event, d);
if (r < 0) {
- log_error("Failed to add event callback: %s", strerror(-r));
+ log_error_errno(r, "Failed to add event callback: %m");
goto error;
}
- r = hashmap_ensure_allocated(&s->daemons, uint64_hash_func, uint64_compare_func);
+ r = sd_event_source_set_description(d->event, "epoll-fd");
+ 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("Failed to add daemon to hashmap: %s", strerror(-r));
+ log_error_errno(r, "Failed to add daemon to hashmap: %m");
goto error;
}
static int setup_microhttpd_socket(RemoteServer *s,
const char *address,
- bool https) {
+ const char *key,
+ const char *cert,
+ const char *trust) {
int fd;
- fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);
+ fd = make_socket_fd(LOG_DEBUG, address, SOCK_STREAM | SOCK_CLOEXEC);
if (fd < 0)
return fd;
- return setup_microhttpd_server(s, fd, https);
+ return setup_microhttpd_server(s, fd, key, cert, trust);
}
static int dispatch_http_event(sd_event_source *event,
**********************************************************************
**********************************************************************/
-static int dispatch_sigterm(sd_event_source *event,
- const struct signalfd_siginfo *si,
- void *userdata) {
- RemoteServer *s = userdata;
-
- assert(s);
-
- log_received_signal(LOG_INFO, si);
-
- sd_event_exit(s->events, 0);
- return 0;
-}
-
static int setup_signals(RemoteServer *s) {
sigset_t mask;
int r;
sigset_add_many(&mask, SIGINT, SIGTERM, -1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
- r = sd_event_add_signal(s->events, &s->sigterm_event, SIGTERM, dispatch_sigterm, s);
+ 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, dispatch_sigterm, s);
+ r = sd_event_add_signal(s->events, &s->sigint_event, SIGINT, NULL, s);
if (r < 0)
return r;
return 0;
}
-static int fd_fd(const char *spec) {
+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 -ENOENT;
-
- return -fd;
+ if (fd > 0)
+ return -EINVAL;
+ else
+ return -fd;
}
-
-static int remoteserver_init(RemoteServer *s) {
+static int remoteserver_init(RemoteServer *s,
+ const char* key,
+ const char* cert,
+ const char* trust) {
int r, n, fd;
- const char *output_name = NULL;
char **file;
assert(s);
- sd_event_default(&s->events);
+ if ((arg_listen_raw || arg_listen_http) && trust) {
+ log_error("Option --trust makes all non-HTTPS connections untrusted.");
+ return -EINVAL;
+ }
+
+ 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) {
- log_error("Failed to read listening file descriptors from environment: %s",
- strerror(-n));
- return n;
- } else
- log_info("Received %d descriptors", n);
+ 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");
}
for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
- if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {
- log_info("Received a listening socket (fd:%d)", 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, false);
+ r = setup_microhttpd_server(s, fd, NULL, NULL, NULL);
else if (fd == https_socket)
- r = setup_microhttpd_server(s, fd, true);
+ 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, true)) {
- log_info("Received a connection socket (fd:%d)", fd);
+ } else if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {
+ char *hostname;
+
+ r = getnameinfo_pretty(fd, &hostname);
+ if (r < 0)
+ return log_error_errno(r, "Failed to retrieve remote name: %m");
- r = add_source(s, fd, NULL);
+ 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) {
- log_error("Failed to register socket (fd:%d): %s",
- fd, strerror(-r));
- return r;
- }
-
- output_name = "socket";
+ if (r < 0)
+ return log_error_errno(r, "Failed to register socket (fd:%d): %m",
+ fd);
}
if (arg_url) {
- _cleanup_free_ char *url = NULL;
- _cleanup_strv_free_ char **urlv = strv_new(arg_url, "/entries", NULL);
- if (!urlv)
- return log_oom();
- url = strv_join(urlv, "");
- if (!url)
- return log_oom();
+ const char *url, *hostname;
+
+ url = strjoina(arg_url, "/entries");
if (arg_getter) {
log_info("Spawning getter %s...", url);
if (fd < 0)
return fd;
- r = add_source(s, fd, arg_url);
+ hostname =
+ startswith(arg_url, "https://") ?:
+ startswith(arg_url, "http://") ?:
+ arg_url;
+
+ r = add_source(s, fd, (char*) hostname, false);
if (r < 0)
return r;
-
- output_name = arg_url;
}
if (arg_listen_raw) {
- log_info("Listening on a socket...");
+ log_debug("Listening on a socket...");
r = setup_raw_socket(s, arg_listen_raw);
if (r < 0)
return r;
-
- output_name = arg_listen_raw;
}
if (arg_listen_http) {
- r = setup_microhttpd_socket(s, arg_listen_http, false);
+ r = setup_microhttpd_socket(s, arg_listen_http, NULL, NULL, NULL);
if (r < 0)
return r;
-
- output_name = arg_listen_http;
}
if (arg_listen_https) {
- r = setup_microhttpd_socket(s, arg_listen_https, true);
+ r = setup_microhttpd_socket(s, arg_listen_https, key, cert, trust);
if (r < 0)
return r;
-
- output_name = arg_listen_https;
}
STRV_FOREACH(file, arg_files) {
+ const char *output_name;
+
if (streq(*file, "-")) {
- log_info("Reading standard input...");
+ log_debug("Using standard input as source.");
fd = STDIN_FILENO;
output_name = "stdin";
} else {
- log_info("Reading file %s...", *file);
+ log_debug("Reading file %s...", *file);
fd = open(*file, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
- if (fd < 0) {
- log_error("Failed to open %s: %m", *file);
- return -errno;
- }
+ if (fd < 0)
+ return log_error_errno(errno, "Failed to open %s: %m", *file);
output_name = *file;
}
- r = add_source(s, fd, output_name);
+ r = add_source(s, fd, (char*) output_name, false);
if (r < 0)
return r;
}
return -EINVAL;
}
- if (!!n + !!arg_url + !!arg_listen_raw + !!arg_files)
- output_name = "multiple";
-
- r = writer_init(&s->writer);
- if (r < 0)
- return r;
+ 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;
+ }
- r = open_output(&s->writer, output_name);
- return r;
+ return 0;
}
-static int server_destroy(RemoteServer *s) {
- int r;
+static void server_destroy(RemoteServer *s) {
size_t i;
MHDDaemonWrapper *d;
- r = writer_close(&s->writer);
-
while ((d = hashmap_steal_first(s->daemons))) {
MHD_stop_daemon(d->daemon);
sd_event_source_unref(d->event);
assert(s->sources_size == 0 || s->sources);
for (i = 0; i < s->sources_size; i++)
remove_source(s, i);
-
free(s->sources);
+ writer_unref(s->_single_writer);
+ hashmap_free(s->writers);
+
sd_event_source_unref(s->sigterm_event);
sd_event_source_unref(s->sigint_event);
sd_event_source_unref(s->listen_event);
sd_event_unref(s->events);
/* fds that we're listening on remain open... */
-
- return r;
}
/**********************************************************************
**********************************************************************
**********************************************************************/
-static int dispatch_raw_source_event(sd_event_source *event,
- int fd,
- uint32_t revents,
- void *userdata) {
+static int handle_raw_source(sd_event_source *event,
+ int fd,
+ uint32_t revents,
+ RemoteServer *s) {
- RemoteServer *s = userdata;
RemoteSource *source;
int r;
+ /* Returns 1 if there might be more data pending,
+ * 0 if data is currently exhausted, negative on error.
+ */
+
assert(fd >= 0 && fd < (ssize_t) s->sources_size);
source = s->sources[fd];
assert(source->fd == fd);
- r = process_source(source, &s->writer, arg_compress, arg_seal);
+ r = process_source(source, arg_compress, arg_seal);
if (source->state == STATE_EOF) {
- log_info("EOF reached with source fd:%d (%s)",
- source->fd, source->name);
- if (source_non_empty(source))
- log_warning("EOF reached with incomplete data");
+ size_t remaining;
+
+ log_debug("EOF reached with source fd:%d (%s)",
+ source->fd, source->name);
+
+ remaining = source_non_empty(source);
+ if (remaining > 0)
+ log_notice("Premature EOF. %zu bytes lost.", remaining);
remove_source(s, source->fd);
- log_info("%zd active source remaining", s->active);
+ log_debug("%zu active sources remaining", s->active);
+ return 0;
} else if (r == -E2BIG) {
- log_error("Entry too big, skipped");
- r = 1;
- }
+ log_notice_errno(E2BIG, "Entry too big, skipped");
+ return 1;
+ } else if (r == -EAGAIN || r == -EWOULDBLOCK) {
+ return 0;
+ } else if (r < 0) {
+ log_debug_errno(r, "Closing connection: %m");
+ remove_source(server, fd);
+ return 0;
+ } else
+ return 1;
+}
+
+static int dispatch_raw_source_until_block(sd_event_source *event,
+ void *userdata) {
+ RemoteSource *source = userdata;
+ int r;
+
+ /* Make sure event stays around even if source is destroyed */
+ sd_event_source_ref(event);
+
+ r = handle_raw_source(event, source->fd, EPOLLIN, server);
+ if (r != 1)
+ /* No more data for now */
+ sd_event_source_set_enabled(event, SD_EVENT_OFF);
+
+ sd_event_source_unref(event);
+
+ return r;
+}
+
+static int dispatch_raw_source_event(sd_event_source *event,
+ int fd,
+ uint32_t revents,
+ void *userdata) {
+ RemoteSource *source = userdata;
+ int r;
+
+ assert(source->event);
+ assert(source->buffer_event);
+
+ r = handle_raw_source(event, fd, EPOLLIN, server);
+ if (r == 1)
+ /* Might have more data. We need to rerun the handler
+ * until we are sure the buffer is exhausted. */
+ sd_event_source_set_enabled(source->buffer_event, SD_EVENT_ON);
return r;
}
-static int accept_connection(const char* type, int fd, SocketAddress *addr) {
+static int dispatch_blocking_source_event(sd_event_source *event,
+ void *userdata) {
+ RemoteSource *source = userdata;
+
+ return handle_raw_source(event, source->fd, EPOLLIN, server);
+}
+
+static int accept_connection(const char* type, int fd,
+ SocketAddress *addr, char **hostname) {
int fd2, r;
log_debug("Accepting new %s connection on fd:%d", type, fd);
fd2 = accept4(fd, &addr->sockaddr.sa, &addr->size, SOCK_NONBLOCK|SOCK_CLOEXEC);
- if (fd2 < 0) {
- log_error("accept() on fd:%d failed: %m", fd);
- return -errno;
- }
+ if (fd2 < 0)
+ return log_error_errno(errno, "accept() on fd:%d failed: %m", fd);
switch(socket_address_family(addr)) {
case AF_INET:
case AF_INET6: {
- char* _cleanup_free_ a = NULL;
+ _cleanup_free_ char *a = NULL;
+ char *b;
r = socket_address_print(addr, &a);
if (r < 0) {
- log_error("socket_address_print(): %s", strerror(-r));
+ log_error_errno(r, "socket_address_print(): %m");
+ close(fd2);
+ return r;
+ }
+
+ r = socknameinfo_pretty(&addr->sockaddr, addr->size, &b);
+ if (r < 0) {
close(fd2);
return r;
}
- log_info("Accepted %s %s connection from %s",
- type,
- socket_address_family(addr) == AF_INET ? "IP" : "IPv6",
- a);
+ log_debug("Accepted %s %s connection from %s",
+ type,
+ socket_address_family(addr) == AF_INET ? "IP" : "IPv6",
+ a);
+
+ *hostname = b;
return fd2;
};
.size = sizeof(union sockaddr_union),
.type = SOCK_STREAM,
};
+ char *hostname;
- fd2 = accept_connection("raw", fd, &addr);
+ fd2 = accept_connection("raw", fd, &addr, &hostname);
if (fd2 < 0)
return fd2;
- return add_source(s, fd2, NULL);
+ 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", "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(PKGSYSCONFDIR "/journal-remote.conf",
+ CONF_DIRS_NULSTR("systemd/journal-remote.conf"),
+ "Remote\0", config_item_table_lookup, items,
+ false, NULL);
+}
+
static void help(void) {
printf("%s [OPTIONS...] {FILE|-}...\n\n"
- "Write external journal events to a journal file.\n\n"
- "Options:\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"
- " --[no-]compress Use XZ-compression in the output journal (default: yes)\n"
- " --[no-]seal Use Event sealing in the output journal (default: no)\n"
- " --key=FILENAME Specify key in PEM format\n"
- " --cert=FILENAME Specify certificate in PEM format\n"
- " --trust=FILENAME Specify CA certificate in PEM format\n"
- " --gnutls-log=CATEGORY...\n"
- " Specify a list of gnutls logging categories\n"
- " -h --help Show this help and exit\n"
- " --version Print version string and exit\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);
ARG_LISTEN_HTTP,
ARG_LISTEN_HTTPS,
ARG_GETTER,
+ ARG_SPLIT_MODE,
ARG_COMPRESS,
- ARG_NO_COMPRESS,
ARG_SEAL,
- ARG_NO_SEAL,
ARG_KEY,
ARG_CERT,
ARG_TRUST,
{ "listen-http", required_argument, NULL, ARG_LISTEN_HTTP },
{ "listen-https", required_argument, NULL, ARG_LISTEN_HTTPS },
{ "output", required_argument, NULL, 'o' },
- { "compress", no_argument, NULL, ARG_COMPRESS },
- { "no-compress", no_argument, NULL, ARG_NO_COMPRESS },
- { "seal", no_argument, NULL, ARG_SEAL },
- { "no-seal", no_argument, NULL, ARG_NO_SEAL },
+ { "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 },
};
int c, r;
+ bool type_a, type_b;
assert(argc >= 0);
assert(argv);
return -EINVAL;
}
- r = fd_fd(optarg);
+ r = negative_fd(optarg);
if (r >= 0)
http_socket = r;
- else if (r == -ENOENT)
+ else
arg_listen_http = optarg;
- else {
- log_error("Invalid port/fd specification %s: %s",
- optarg, strerror(-r));
- return -EINVAL;
- }
-
break;
case ARG_LISTEN_HTTPS:
return -EINVAL;
}
- r = fd_fd(optarg);
+ r = negative_fd(optarg);
if (r >= 0)
https_socket = r;
- else if (r == -ENOENT)
+ else
arg_listen_https = optarg;
- else {
- log_error("Invalid port/fd specification %s: %s",
- optarg, strerror(-r));
- return -EINVAL;
- }
break;
case ARG_KEY:
- if (key_pem) {
+ if (arg_key) {
log_error("Key file specified twice");
return -EINVAL;
}
- r = read_full_file(optarg, &key_pem, NULL);
- if (r < 0) {
- log_error("Failed to read key file: %s", strerror(-r));
- return r;
- }
- assert(key_pem);
+
+ arg_key = strdup(optarg);
+ if (!arg_key)
+ return log_oom();
+
break;
case ARG_CERT:
- if (cert_pem) {
+ if (arg_cert) {
log_error("Certificate file specified twice");
return -EINVAL;
}
- r = read_full_file(optarg, &cert_pem, NULL);
- if (r < 0) {
- log_error("Failed to read certificate file: %s", strerror(-r));
- return r;
- }
- assert(cert_pem);
+
+ arg_cert = strdup(optarg);
+ if (!arg_cert)
+ return log_oom();
+
break;
case ARG_TRUST:
-#ifdef HAVE_GNUTLS
- if (trust_pem) {
- log_error("CA certificate file specified twice");
+ if (arg_trust || arg_trust_all) {
+ log_error("Confusing trusted CA configuration");
return -EINVAL;
}
- r = read_full_file(optarg, &trust_pem, NULL);
- if (r < 0) {
- log_error("Failed to read CA certificate file: %s", strerror(-r));
- return r;
- }
- assert(trust_pem);
- break;
+
+ if (streq(optarg, "all"))
+ arg_trust_all = true;
+ else {
+#ifdef HAVE_GNUTLS
+ arg_trust = strdup(optarg);
+ if (!arg_trust)
+ return log_oom();
#else
- log_error("Option --trust is not available.");
- return -EINVAL;
+ log_error("Option --trust is not available.");
+ return -EINVAL;
#endif
+ }
+
+ break;
case 'o':
if (arg_output) {
arg_output = optarg;
break;
- case ARG_COMPRESS:
- arg_compress = true;
+ 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_NO_COMPRESS:
- arg_compress = false;
+
+ 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:
- arg_seal = true;
- break;
- case ARG_NO_SEAL:
- arg_seal = false;
+ 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: {
#ifdef HAVE_GNUTLS
- char *word, *state;
+ const char *word, *state;
size_t size;
FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
return -EINVAL;
default:
- log_error("Unknown option code %c", c);
+ 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 (arg_listen_https && !(key_pem && cert_pem)) {
- log_error("Options --key and --cert must be used when using HTTPS.");
+ arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
+ }
+
+ if (arg_split_mode == JOURNAL_WRITE_SPLIT_NONE
+ && arg_output && is_dir(arg_output, true) > 0) {
+ log_error("For SplitMode=none, output must be a file.");
return -EINVAL;
}
- if (optind < argc)
- arg_files = argv + optind;
+ 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;
+}
+
static int setup_gnutls_logger(char **categories) {
if (!arg_listen_http && !arg_listen_https)
return 0;
gnutls_global_set_log_function(log_func_gnutls);
- if (categories)
+ if (categories) {
STRV_FOREACH(cat, categories) {
r = log_enable_gnutls_category(*cat);
if (r < 0)
return r;
}
- else
+ } else
log_reset_gnutls_level();
}
#endif
int main(int argc, char **argv) {
RemoteServer s = {};
- int r, r2;
+ 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 (r < 0)
return EXIT_FAILURE;
- if (remoteserver_init(&s) < 0)
+ 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;
- sd_event_set_watchdog(s.events, true);
+ 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 %s.", r > 0 ? "enabled" : "disabled");
log_debug("%s running as pid "PID_FMT,
program_invocation_short_name, getpid());
r = sd_event_run(s.events, -1);
if (r < 0) {
- log_error("Failed to run event loop: %s", strerror(-r));
+ log_error_errno(r, "Failed to run event loop: %m");
break;
}
}
- log_info("Finishing after writing %" PRIu64 " entries", s.writer.seqnum);
- r2 = server_destroy(&s);
+ 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);
- sd_notify(false, "STATUS=Shutting down...");
+ free(arg_key);
+ free(arg_cert);
+ free(arg_trust);
- return r >= 0 && r2 >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+ return r >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
~ianmdlvl / elogind.git / blobdiff