if (!source)
return;
- if (source->fd >= 0) {
+ if (source->fd >= 0 && !source->passive_fd) {
log_debug("Closing fd:%d (%s)", source->fd, source->name);
safe_close(source->fd);
}
+
free(source->name);
free(source->buf);
iovw_free_contents(&source->iovw);
+ log_debug("Writer ref count %u", source->writer->n_ref);
+ writer_unref(source->writer);
+
sd_event_source_unref(source->event);
free(source);
}
+/**
+ * Initialize zero-filled source with given values. On success, takes
+ * ownerhship of fd and writer, otherwise does not touch them.
+ */
+RemoteSource* source_new(int fd, bool passive_fd, char *name, Writer *writer) {
+
+ RemoteSource *source;
+
+ log_debug("Creating source for %sfd:%d (%s)",
+ passive_fd ? "passive " : "", fd, name);
+
+ assert(fd >= 0);
+
+ source = new0(RemoteSource, 1);
+ if (!source)
+ return NULL;
+
+ source->fd = fd;
+ source->passive_fd = passive_fd;
+ source->name = name;
+ source->writer = writer;
+
+ return source;
+}
+
static int get_line(RemoteSource *source, char **line, size_t *size) {
ssize_t n, remain;
char *c = NULL;
assert(source->state == STATE_LINE);
assert(source->filled <= source->size);
assert(source->buf == NULL || source->size > 0);
+ assert(source->fd >= 0);
while (true) {
if (source->buf)
return -E2BIG;
}
- if (source->fd < 0)
+ if (source->passive_fd)
/* we have to wait for some data to come to us */
return -EWOULDBLOCK;
assert(source->scanned <= source->filled);
assert(source->buf != NULL || source->size == 0);
assert(source->buf == NULL || source->size > 0);
+ assert(source->fd >= 0);
assert(data);
while(source->filled < size) {
- if (source->fd < 0)
+ if (source->passive_fd)
/* we have to wait for some data to come to us */
return -EWOULDBLOCK;
}
}
-int process_source(RemoteSource *source, Writer *writer, bool compress, bool seal) {
+int process_source(RemoteSource *source, bool compress, bool seal) {
int r;
assert(source);
- assert(writer);
+ assert(source->writer);
r = process_data(source);
if (r <= 0)
assert(source->iovw.iovec);
assert(source->iovw.count);
- r = writer_write(writer, &source->iovw, &source->ts, compress, seal);
+ r = writer_write(source->writer, &source->iovw, &source->ts, compress, seal);
if (r < 0)
log_error("Failed to write entry of %zu bytes: %s",
iovw_size(&source->iovw), strerror(-r));
#include <errno.h>
#include <fcntl.h>
-#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.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 "build.h"
#include "macro.h"
#include "strv.h"
-#include "hashmap.h"
#include "fileio.h"
#include "conf-parser.h"
-#include "microhttpd-util.h"
#include "siphash24.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/remote"
static int http_socket = -1, https_socket = -1;
static char** arg_gnutls_log = NULL;
-static JournalWriteSplitMode arg_split_mode = JOURNAL_WRITE_SPLIT_NONE;
+static JournalWriteSplitMode arg_split_mode = JOURNAL_WRITE_SPLIT_HOST;
static char* arg_output = NULL;
static char *arg_key = NULL;
return r;
}
-#define filename_escape(s) xescape((s), "./ ")
+#define filename_escape(s) xescape((s), "/ ")
static int open_output(Writer *w, const char* host) {
_cleanup_free_ char *_output = NULL;
**********************************************************************
**********************************************************************/
-typedef struct MHDDaemonWrapper {
- uint64_t fd;
- struct MHD_Daemon *daemon;
+static int init_writer_hashmap(RemoteServer *s) {
+ static const struct {
+ hash_func_t hash_func;
+ compare_func_t compare_func;
+ } functions[] = {
+ [JOURNAL_WRITE_SPLIT_NONE] = {trivial_hash_func,
+ trivial_compare_func},
+ [JOURNAL_WRITE_SPLIT_HOST] = {string_hash_func,
+ string_compare_func},
+ };
+
+ assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(functions));
- sd_event_source *event;
-} MHDDaemonWrapper;
+ s->writers = hashmap_new(functions[arg_split_mode].hash_func,
+ functions[arg_split_mode].compare_func);
+ 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();
+
+ 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;
+ }
- Hashmap *writers;
+ *writer = w;
+ w = NULL;
+ return 0;
+}
- bool check_trust;
- Hashmap *daemons;
-} RemoteServer;
+/**********************************************************************
+ **********************************************************************
+ **********************************************************************/
/* This should go away as soon as µhttpd allows state to be passed around. */
static RemoteServer *server;
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;
+
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) {
+ log_warning("Failed to get writer for source %s: %s",
+ name, strerror(-r));
+ return r;
+ }
+
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++;
}
return 0;
}
-static int add_source(RemoteServer *s, int fd, const char* _name) {
+static int add_source(RemoteServer *s, int fd, char* name, bool own_name) {
RemoteSource *source;
- char *name;
int r;
assert(s);
assert(fd >= 0);
- assert(_name);
+ assert(name);
- log_debug("Creating source for fd:%d (%s)", fd, _name);
-
- name = strdup(_name);
- if (!name)
- return log_oom();
+ if (!own_name) {
+ name = strdup(name);
+ if (!name)
+ return log_oom();
+ }
- 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, name);
- free(name);
+ log_error("Failed to create source for fd:%d (%s): %s",
+ fd, name, strerror(-r));
return r;
}
- assert(source);
- assert(source->fd < 0);
- assert(!source->name);
-
- source->fd = fd;
- source->name = name;
-
r = sd_event_add_io(s->events, &source->event,
fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI,
dispatch_raw_source_event, s);
return add_raw_socket(s, fd);
}
-/**********************************************************************
- **********************************************************************
- **********************************************************************/
-
-static int init_writer_hashmap(RemoteServer *s) {
- static const struct {
- hash_func_t hash_func;
- compare_func_t compare_func;
- } functions[] = {
- [JOURNAL_WRITE_SPLIT_NONE] = {trivial_hash_func,
- trivial_compare_func},
- [JOURNAL_WRITE_SPLIT_HOST] = {string_hash_func,
- string_compare_func},
- };
-
- assert(arg_split_mode >= 0 && arg_split_mode < (int) ELEMENTSOF(functions));
-
- s->writers = hashmap_new(functions[arg_split_mode].hash_func,
- functions[arg_split_mode].compare_func);
- if (!s->writers)
- return log_oom();
-
- return 0;
-}
-
-static int get_writer(RemoteServer *s, const char *host, sd_id128_t *machine,
- Writer **writer) {
- const void *key;
- Writer *w;
- 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) {
- w = new0(Writer, 1);
- if (!w)
- return -ENOMEM;
-
- r = writer_init(w);
- if (r < 0) {
- free(w);
- return r;
- }
-
- r = hashmap_put(s->writers, key, w);
- if (r < 0) {
- writer_close(w);
- free(w);
- return r;
- }
-
- r = open_output(w, host);
- if (r < 0)
- return r;
- }
-
- *writer = w;
- return 0;
-}
-
/**********************************************************************
**********************************************************************
**********************************************************************/
static RemoteSource *request_meta(void **connection_cls, int fd, char *hostname) {
RemoteSource *source;
+ Writer *writer;
+ int r;
assert(connection_cls);
- if (*connection_cls) {
- free(hostname);
+ if (*connection_cls)
return *connection_cls;
+
+ r = get_writer(server, hostname, &writer);
+ if (r < 0) {
+ log_warning("Failed to get writer for source %s: %s",
+ hostname, strerror(-r));
+ return NULL;
}
- source = new0(RemoteSource, 1);
+ source = source_new(fd, true, hostname, writer);
if (!source) {
- free(hostname);
+ log_oom();
+ writer_unref(writer);
return NULL;
}
- source->fd = -1; /* fd */
- source->name = hostname;
-
log_debug("Added RemoteSource as connection metadata %p", source);
*connection_cls = source;
size_t *upload_data_size,
RemoteSource *source) {
- Writer *w;
- int r;
bool finished = false;
size_t remaining;
+ int r;
assert(source);
log_debug("request_handler_upload: connection %p, %zu bytes",
connection, *upload_data_size);
- r = get_writer(server, source->name, NULL, &w);
- if (r < 0) {
- log_warning("Failed to get writer for source %s: %s",
- source->name, strerror(-r));
- return mhd_respondf(connection,
- MHD_HTTP_SERVICE_UNAVAILABLE,
- "Failed to get writer for connection: %s.\n",
- strerror(-r));
- }
-
if (*upload_data_size) {
log_debug("Received %zu bytes", *upload_data_size);
finished = true;
while (true) {
-
- r = process_source(source, w, arg_compress, arg_seal);
+ r = process_source(source, arg_compress, arg_seal);
if (r == -EAGAIN || r == -EWOULDBLOCK)
break;
else if (r < 0) {
const char *header;
int r, code, fd;
- char *hostname;
+ _cleanup_free_ char *hostname = NULL;
assert(connection);
assert(connection_cls);
if (!request_meta(connection_cls, fd, hostname))
return respond_oom(connection);
+ hostname = NULL;
return MHD_YES;
}
else
r = add_raw_socket(s, fd);
} else if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {
- _cleanup_free_ char *hostname = NULL;
+ char *hostname;
r = getnameinfo_pretty(fd, &hostname);
if (r < 0) {
log_info("Received a connection socket (fd:%d) from %s", fd, hostname);
- r = add_source(s, fd, hostname);
+ r = add_source(s, fd, hostname, true);
+ if (r < 0)
+ free(hostname);
} else {
log_error("Unknown socket passed on fd:%d", fd);
startswith(arg_url, "http://") ?:
arg_url;
- r = add_source(s, fd, hostname);
+ r = add_source(s, fd, (char*) hostname, false);
if (r < 0)
return r;
output_name = *file;
}
- r = add_source(s, fd, output_name);
+ r = add_source(s, fd, (char*) output_name, false);
if (r < 0)
return r;
}
/* 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. */
- Writer *w;
-
- r = get_writer(s, NULL, NULL, &w);
+ r = get_writer(s, NULL, &s->_single_writer);
if (r < 0)
return r;
}
return 0;
}
-static int server_destroy(RemoteServer *s, uint64_t *event_count) {
- int r;
+static void server_destroy(RemoteServer *s) {
size_t i;
- Writer *w;
MHDDaemonWrapper *d;
- *event_count = 0;
-
- while ((w = hashmap_steal_first(s->writers))) {
- log_info("seqnum %"PRIu64, w->seqnum);
- *event_count += w->seqnum;
-
- r = writer_close(w);
- if (r < 0)
- log_warning("Failed to close writer: %s", strerror(-r));
- free(w);
- }
-
- hashmap_free(s->writers);
-
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;
}
/**********************************************************************
uint32_t revents,
void *userdata) {
- Writer *w;
RemoteServer *s = userdata;
RemoteSource *source;
int r;
source = s->sources[fd];
assert(source->fd == fd);
- r = get_writer(s, source->name, NULL, &w);
- if (r < 0) {
- log_warning("Failed to get writer for source %s: %s",
- source->name, strerror(-r));
- return r;
- }
-
- r = process_source(source, w, arg_compress, arg_seal);
+ r = process_source(source, arg_compress, arg_seal);
if (source->state == STATE_EOF) {
size_t remaining;
uint32_t revents,
void *userdata) {
RemoteServer *s = userdata;
- int fd2;
+ int fd2, r;
SocketAddress addr = {
.size = sizeof(union sockaddr_union),
.type = SOCK_STREAM,
if (fd2 < 0)
return fd2;
- return add_source(s, fd2, hostname);
+ r = add_source(s, fd2, hostname, true);
+ if (r < 0)
+ free(hostname);
+ return r;
}
/**********************************************************************
int main(int argc, char **argv) {
RemoteServer s = {};
- int r, r2;
+ int r;
_cleanup_free_ char *key = NULL, *cert = NULL, *trust = NULL;
- uint64_t entry_count;
log_show_color(true);
log_parse_environment();
}
}
- r2 = server_destroy(&s, &entry_count);
- log_info("Finishing after writing %" PRIu64 " entries", entry_count);
+ server_destroy(&s);
+ log_info("Finishing after writing %" PRIu64 " entries", s.event_count);
sd_notify(false, "STATUS=Shutting down...");
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 / commitdiff