739 lines
23 KiB
C
739 lines
23 KiB
C
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||
|
|
||
|
/***
|
||
|
This file is part of systemd.
|
||
|
|
||
|
Copyright 2012 Zbigniew Jędrzejewski-Szmek
|
||
|
|
||
|
systemd is free software; you can redistribute it and/or modify it
|
||
|
under the terms of the GNU Lesser General Public License as published by
|
||
|
the Free Software Foundation; either version 2.1 of the License, or
|
||
|
(at your option) any later version.
|
||
|
|
||
|
systemd is distributed in the hope that it will be useful, but
|
||
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
Lesser General Public License for more details.
|
||
|
|
||
|
You should have received a copy of the GNU Lesser General Public License
|
||
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||
|
***/
|
||
|
|
||
|
#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 "journal-remote-parse.h"
|
||
|
#include "journal-remote-write.h"
|
||
|
|
||
|
#define REMOTE_JOURNAL_PATH "/var/log/journal/" SD_ID128_FORMAT_STR "/remote-%s.journal"
|
||
|
|
||
|
static char* arg_output = NULL;
|
||
|
static char* arg_url = NULL;
|
||
|
static char* arg_getter = NULL;
|
||
|
static bool arg_stdin = false;
|
||
|
static char* arg_listen_raw = NULL;
|
||
|
static int arg_compress = true;
|
||
|
static int arg_seal = false;
|
||
|
|
||
|
/**********************************************************************
|
||
|
**********************************************************************
|
||
|
**********************************************************************/
|
||
|
|
||
|
static int spawn_child(const char* child, char** argv) {
|
||
|
int fd[2];
|
||
|
pid_t parent_pid, child_pid;
|
||
|
int r;
|
||
|
|
||
|
if (pipe(fd) < 0) {
|
||
|
log_error("Failed to create pager pipe: %m");
|
||
|
return -errno;
|
||
|
}
|
||
|
|
||
|
parent_pid = getpid();
|
||
|
|
||
|
child_pid = fork();
|
||
|
if (child_pid < 0) {
|
||
|
r = -errno;
|
||
|
log_error("Failed to fork: %m");
|
||
|
close_pipe(fd);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/* In the child */
|
||
|
if (child_pid == 0) {
|
||
|
r = dup2(fd[1], STDOUT_FILENO);
|
||
|
if (r < 0) {
|
||
|
log_error("Failed to dup pipe to stdout: %m");
|
||
|
_exit(EXIT_FAILURE);
|
||
|
}
|
||
|
|
||
|
r = close_pipe(fd);
|
||
|
if (r < 0)
|
||
|
log_warning("Failed to close pipe fds: %m");
|
||
|
|
||
|
/* Make sure the child goes away when the parent dies */
|
||
|
if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
|
||
|
_exit(EXIT_FAILURE);
|
||
|
|
||
|
/* Check whether our parent died before we were able
|
||
|
* to set the death signal */
|
||
|
if (getppid() != parent_pid)
|
||
|
_exit(EXIT_SUCCESS);
|
||
|
|
||
|
execvp(child, argv);
|
||
|
log_error("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");
|
||
|
|
||
|
return fd[0];
|
||
|
}
|
||
|
|
||
|
static int spawn_curl(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("Failed to spawn curl: %m");
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int spawn_getter(char *getter, char *url) {
|
||
|
int r;
|
||
|
char _cleanup_strv_free_ **words = NULL, **words2 = NULL;
|
||
|
|
||
|
assert(getter);
|
||
|
words = strv_split_quoted(getter);
|
||
|
if (!words)
|
||
|
return log_oom();
|
||
|
|
||
|
r = spawn_child(words[0], words);
|
||
|
if (r < 0)
|
||
|
log_error("Failed to spawn getter %s: %m", getter);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int open_output(Writer *s, const char* url) {
|
||
|
char _cleanup_free_ *name, *output = NULL;
|
||
|
char *c;
|
||
|
int r;
|
||
|
|
||
|
assert(url);
|
||
|
name = strdup(url);
|
||
|
if (!name)
|
||
|
return log_oom();
|
||
|
|
||
|
for(c = name; *c; c++) {
|
||
|
if (*c == '/' || *c == ':' || *c == ' ')
|
||
|
*c = '~';
|
||
|
else if (*c == '?') {
|
||
|
*c = '\0';
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
r = asprintf(&output, REMOTE_JOURNAL_PATH,
|
||
|
SD_ID128_FORMAT_VAL(machine), name);
|
||
|
if (r < 0)
|
||
|
return log_oom();
|
||
|
} else {
|
||
|
r = is_dir(arg_output);
|
||
|
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();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
r = journal_file_open_reliably(output,
|
||
|
O_RDWR|O_CREAT, 0640,
|
||
|
arg_compress, arg_seal,
|
||
|
&s->metrics,
|
||
|
s->mmap,
|
||
|
NULL, &s->journal);
|
||
|
if (r < 0)
|
||
|
log_error("Failed to open output journal %s: %s",
|
||
|
arg_output, strerror(-r));
|
||
|
else
|
||
|
log_info("Opened output file %s", s->journal->path);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
typedef struct RemoteServer {
|
||
|
RemoteSource **sources;
|
||
|
ssize_t sources_size;
|
||
|
ssize_t active;
|
||
|
|
||
|
sd_event *events;
|
||
|
sd_event_source *sigterm_event, *sigint_event, *listen_event;
|
||
|
|
||
|
Writer writer;
|
||
|
} RemoteServer;
|
||
|
|
||
|
static int dispatch_raw_source_event(sd_event_source *event,
|
||
|
int fd,
|
||
|
uint32_t revents,
|
||
|
void *userdata);
|
||
|
static int dispatch_raw_connection_event(sd_event_source *event,
|
||
|
int fd,
|
||
|
uint32_t revents,
|
||
|
void *userdata);
|
||
|
|
||
|
static int get_source_for_fd(RemoteServer *s, int fd, RemoteSource **source) {
|
||
|
assert(fd >= 0);
|
||
|
assert(source);
|
||
|
|
||
|
if (!GREEDY_REALLOC0_T(s->sources, s->sources_size, fd + 1))
|
||
|
return log_oom();
|
||
|
|
||
|
if (s->sources[fd] == NULL) {
|
||
|
s->sources[fd] = new0(RemoteSource, 1);
|
||
|
if (!s->sources[fd])
|
||
|
return log_oom();
|
||
|
s->sources[fd]->fd = -1;
|
||
|
s->active++;
|
||
|
}
|
||
|
|
||
|
*source = s->sources[fd];
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int remove_source(RemoteServer *s, int fd) {
|
||
|
RemoteSource *source;
|
||
|
|
||
|
assert(s);
|
||
|
assert(fd >= 0);
|
||
|
assert(fd < s->sources_size);
|
||
|
|
||
|
source = s->sources[fd];
|
||
|
if (source) {
|
||
|
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;
|
||
|
char *realname;
|
||
|
int r;
|
||
|
|
||
|
assert(s);
|
||
|
assert(fd >= 0);
|
||
|
|
||
|
if (name) {
|
||
|
realname = strdup(name);
|
||
|
if (!realname)
|
||
|
return log_oom();
|
||
|
} else {
|
||
|
r = asprintf(&realname, "fd:%d", fd);
|
||
|
if (r < 0)
|
||
|
return log_oom();
|
||
|
}
|
||
|
|
||
|
log_debug("Creating source for fd:%d (%s)", fd, name);
|
||
|
|
||
|
r = get_source_for_fd(s, fd, &source);
|
||
|
if (r < 0) {
|
||
|
log_error("Failed to create source for fd:%d (%s)", fd, 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);
|
||
|
if (r < 0) {
|
||
|
log_error("Failed to register event source for fd:%d: %s",
|
||
|
fd, strerror(-r));
|
||
|
goto error;
|
||
|
}
|
||
|
|
||
|
return 1; /* work to do */
|
||
|
|
||
|
error:
|
||
|
remove_source(s, fd);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int setup_raw_socket(RemoteServer *s, const char *address) {
|
||
|
int fd, r;
|
||
|
|
||
|
fd = make_socket_fd(LOG_INFO, address, SOCK_STREAM | SOCK_CLOEXEC);
|
||
|
if (fd < 0)
|
||
|
return fd;
|
||
|
|
||
|
r = sd_event_add_io(s->events, &s->listen_event, fd, EPOLLIN,
|
||
|
dispatch_raw_connection_event, s);
|
||
|
if (r < 0) {
|
||
|
close(fd);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
s->active ++;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/**********************************************************************
|
||
|
**********************************************************************
|
||
|
**********************************************************************/
|
||
|
|
||
|
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;
|
||
|
|
||
|
assert(s);
|
||
|
|
||
|
assert_se(sigemptyset(&mask) == 0);
|
||
|
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);
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
|
||
|
r = sd_event_add_signal(s->events, &s->sigint_event, SIGINT, dispatch_sigterm, s);
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int remoteserver_init(RemoteServer *s) {
|
||
|
int r, n, fd;
|
||
|
const char *output_name = NULL;
|
||
|
|
||
|
assert(s);
|
||
|
|
||
|
sd_event_default(&s->events);
|
||
|
|
||
|
setup_signals(s);
|
||
|
|
||
|
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);
|
||
|
|
||
|
for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) {
|
||
|
if (sd_is_socket(fd, AF_UNSPEC, 0, false)) {
|
||
|
assert_not_reached("not implemented");
|
||
|
} else if (sd_is_socket(fd, AF_UNSPEC, 0, true)) {
|
||
|
log_info("Received a connection socket (fd:%d)", fd);
|
||
|
|
||
|
r = add_source(s, fd, NULL);
|
||
|
output_name = "socket";
|
||
|
} else {
|
||
|
log_error("Unknown socket passed on fd:%d", fd);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (arg_url) {
|
||
|
char _cleanup_free_ *url = NULL;
|
||
|
char _cleanup_strv_free_ **urlv = strv_new(arg_url, "/entries", NULL);
|
||
|
if (!urlv)
|
||
|
return log_oom();
|
||
|
url = strv_join(urlv, "");
|
||
|
if (!url)
|
||
|
return log_oom();
|
||
|
|
||
|
if (arg_getter) {
|
||
|
log_info("Spawning getter %s...", url);
|
||
|
fd = spawn_getter(arg_getter, url);
|
||
|
} else {
|
||
|
log_info("Spawning curl %s...", url);
|
||
|
fd = spawn_curl(url);
|
||
|
}
|
||
|
if (fd < 0)
|
||
|
return fd;
|
||
|
|
||
|
r = add_source(s, fd, arg_url);
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
|
||
|
output_name = arg_url;
|
||
|
}
|
||
|
|
||
|
if (arg_listen_raw) {
|
||
|
log_info("Listening on a socket...");
|
||
|
r = setup_raw_socket(s, arg_listen_raw);
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
|
||
|
output_name = arg_listen_raw;
|
||
|
}
|
||
|
|
||
|
if (arg_stdin) {
|
||
|
log_info("Reading standard input...");
|
||
|
r = add_source(s, STDIN_FILENO, "stdin");
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
|
||
|
output_name = "stdin";
|
||
|
}
|
||
|
|
||
|
if (s->active == 0) {
|
||
|
log_error("Zarro sources specified");
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
if (!!n + !!arg_url + !!arg_listen_raw + !!arg_stdin > 1)
|
||
|
output_name = "multiple";
|
||
|
|
||
|
r = writer_init(&s->writer);
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
|
||
|
r = open_output(&s->writer, output_name);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int server_destroy(RemoteServer *s) {
|
||
|
int r;
|
||
|
ssize_t i;
|
||
|
|
||
|
r = writer_close(&s->writer);
|
||
|
|
||
|
assert(s->sources_size == 0 || s->sources);
|
||
|
for(i = 0; i < s->sources_size; i++)
|
||
|
remove_source(s, i);
|
||
|
|
||
|
free(s->sources);
|
||
|
|
||
|
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) {
|
||
|
|
||
|
RemoteServer *s = userdata;
|
||
|
RemoteSource *source;
|
||
|
int r;
|
||
|
|
||
|
assert(fd < s->sources_size);
|
||
|
source = s->sources[fd];
|
||
|
assert(source->fd == fd);
|
||
|
|
||
|
r = process_source(source, &s->writer, 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");
|
||
|
remove_source(s, source->fd);
|
||
|
log_info("%zd active source remaining", s->active);
|
||
|
} else if (r == -E2BIG) {
|
||
|
log_error("Entry too big, skipped");
|
||
|
r = 1;
|
||
|
}
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int dispatch_raw_connection_event(sd_event_source *event,
|
||
|
int fd,
|
||
|
uint32_t revents,
|
||
|
void *userdata) {
|
||
|
RemoteServer *s = userdata;
|
||
|
|
||
|
SocketAddress addr = {
|
||
|
.size = sizeof(union sockaddr_union),
|
||
|
.type = SOCK_STREAM,
|
||
|
};
|
||
|
int fd2, r;
|
||
|
|
||
|
log_debug("Accepting new connection on fd:%d", 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;
|
||
|
}
|
||
|
|
||
|
switch(socket_address_family(&addr)) {
|
||
|
case AF_INET:
|
||
|
case AF_INET6: {
|
||
|
char* _cleanup_free_ a = NULL;
|
||
|
|
||
|
r = socket_address_print(&addr, &a);
|
||
|
if (r < 0) {
|
||
|
log_error("socket_address_print(): %s", strerror(-r));
|
||
|
close(fd2);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
log_info("Accepted %s connection from %s",
|
||
|
socket_address_family(&addr) == AF_INET ? "IP" : "IPv6",
|
||
|
a);
|
||
|
break;
|
||
|
};
|
||
|
default:
|
||
|
log_error("Connection with unsupported family %d",
|
||
|
socket_address_family(&addr));
|
||
|
close(fd2);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
r = add_source(s, fd2, NULL);
|
||
|
if (r < 0)
|
||
|
log_error("failed to create source from fd:%d: %s", fd2, strerror(-r));
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
|
||
|
/**********************************************************************
|
||
|
**********************************************************************
|
||
|
**********************************************************************/
|
||
|
|
||
|
static int help(void) {
|
||
|
printf("%s [OPTIONS...]\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"
|
||
|
" --stdin Read events from standard input\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"
|
||
|
" -h --help Show this help and exit\n"
|
||
|
" --version Print version string and exit\n"
|
||
|
"\n"
|
||
|
"Note: file descriptors from sd_listen_fds() will be consumed, too.\n"
|
||
|
, program_invocation_short_name);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int parse_argv(int argc, char *argv[]) {
|
||
|
enum {
|
||
|
ARG_VERSION = 0x100,
|
||
|
ARG_URL,
|
||
|
ARG_LISTEN_RAW,
|
||
|
ARG_STDIN,
|
||
|
ARG_GETTER,
|
||
|
ARG_COMPRESS,
|
||
|
ARG_NO_COMPRESS,
|
||
|
ARG_SEAL,
|
||
|
ARG_NO_SEAL,
|
||
|
};
|
||
|
|
||
|
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 },
|
||
|
{ "stdin", no_argument, NULL, ARG_STDIN },
|
||
|
{ "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 },
|
||
|
{}
|
||
|
};
|
||
|
|
||
|
int c;
|
||
|
|
||
|
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:
|
||
|
puts(PACKAGE_STRING);
|
||
|
puts(SYSTEMD_FEATURES);
|
||
|
return 0 /* done */;
|
||
|
|
||
|
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_STDIN:
|
||
|
arg_stdin = true;
|
||
|
break;
|
||
|
|
||
|
case 'o':
|
||
|
if (arg_output) {
|
||
|
log_error("cannot use --output/-o more than once");
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
arg_output = optarg;
|
||
|
break;
|
||
|
|
||
|
case ARG_COMPRESS:
|
||
|
arg_compress = true;
|
||
|
break;
|
||
|
case ARG_NO_COMPRESS:
|
||
|
arg_compress = false;
|
||
|
break;
|
||
|
case ARG_SEAL:
|
||
|
arg_seal = true;
|
||
|
break;
|
||
|
case ARG_NO_SEAL:
|
||
|
arg_seal = false;
|
||
|
break;
|
||
|
|
||
|
case '?':
|
||
|
return -EINVAL;
|
||
|
|
||
|
default:
|
||
|
log_error("Unknown option code %c", c);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
if (optind < argc) {
|
||
|
log_error("This program takes no positional arguments");
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
return 1 /* work to do */;
|
||
|
}
|
||
|
|
||
|
int main(int argc, char **argv) {
|
||
|
RemoteServer s = {};
|
||
|
int r, r2;
|
||
|
|
||
|
log_set_max_level(LOG_DEBUG);
|
||
|
log_show_color(true);
|
||
|
log_parse_environment();
|
||
|
|
||
|
r = parse_argv(argc, argv);
|
||
|
if (r <= 0)
|
||
|
return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
|
||
|
|
||
|
if (remoteserver_init(&s) < 0)
|
||
|
return EXIT_FAILURE;
|
||
|
|
||
|
log_debug("%s running as pid %lu",
|
||
|
program_invocation_short_name, (unsigned long) getpid());
|
||
|
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("Failed to run event loop: %s", strerror(-r));
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
log_info("Finishing after writing %" PRIu64 " entries", s.writer.seqnum);
|
||
|
r2 = server_destroy(&s);
|
||
|
|
||
|
sd_notify(false, "STATUS=Shutting down...");
|
||
|
|
||
|
return r >= 0 && r2 >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
|
||
|
}
|