#include "log.h"
#include "util.h"
#include "build.h"
+#include "fileio.h"
+#include "conf-parser.h"
#include "journal-upload.h"
+#define PRIV_KEY_FILE CERTIFICATE_ROOT "/private/journal-upload.pem"
+#define CERT_FILE CERTIFICATE_ROOT "/certs/journal-upload.pem"
+#define TRUST_FILE CERTIFICATE_ROOT "/ca/trusted.pem"
+
static const char* arg_url;
static void close_fd_input(Uploader *u);
static const char *arg_machine = NULL;
static bool arg_merge = false;
static int arg_follow = -1;
+static const char *arg_save_state = NULL;
#define SERVER_ANSWER_KEEP 2048
+#define STATE_FILE "/var/lib/systemd/journal-upload/state"
+
#define easy_setopt(curl, opt, value, level, cmd) \
{ \
code = curl_easy_setopt(curl, opt, value); \
return size * nmemb;
}
+static int update_cursor_state(Uploader *u) {
+ _cleanup_free_ char *temp_path = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ int r;
+
+ if (!u->state_file || !u->last_cursor)
+ return 0;
+
+ r = fopen_temporary(u->state_file, &f, &temp_path);
+ if (r < 0)
+ goto finish;
+
+ fprintf(f,
+ "# This is private data. Do not parse.\n"
+ "LAST_CURSOR=%s\n",
+ u->last_cursor);
+
+ fflush(f);
+
+ if (ferror(f) || rename(temp_path, u->state_file) < 0) {
+ r = -errno;
+ unlink(u->state_file);
+ unlink(temp_path);
+ }
+
+finish:
+ if (r < 0)
+ log_error("Failed to save state %s: %s", u->state_file, strerror(-r));
+
+ return r;
+}
+
+static int load_cursor_state(Uploader *u) {
+ int r;
+
+ if (!u->state_file)
+ return 0;
+
+ r = parse_env_file(u->state_file, NEWLINE,
+ "LAST_CURSOR", &u->last_cursor,
+ NULL);
+
+ if (r < 0 && r != -ENOENT) {
+ log_error("Failed to read state file %s: %s",
+ u->state_file, strerror(-r));
+ return r;
+ }
+
+ return 0;
+}
+
+
+
int start_upload(Uploader *u,
size_t (*input_callback)(void *ptr,
size_t size,
"systemd-journal-upload " PACKAGE_STRING,
LOG_WARNING, );
- if (arg_key) {
+ if (arg_key || startswith(u->url, "https://")) {
assert(arg_cert);
- easy_setopt(curl, CURLOPT_SSLKEY, arg_key,
+ easy_setopt(curl, CURLOPT_SSLKEY, arg_key ?: PRIV_KEY_FILE,
LOG_ERR, return -EXFULL);
- easy_setopt(curl, CURLOPT_SSLCERT, arg_cert,
+ easy_setopt(curl, CURLOPT_SSLCERT, arg_cert ?: CERT_FILE,
LOG_ERR, return -EXFULL);
}
- if (arg_trust)
- easy_setopt(curl, CURLOPT_CAINFO, arg_trust,
+ if (arg_trust || startswith(u->url, "https://"))
+ easy_setopt(curl, CURLOPT_CAINFO, arg_trust ?: TRUST_FILE,
LOG_ERR, return -EXFULL);
if (arg_key || arg_trust)
Uploader *u = userp;
assert(u);
- assert(revents & EPOLLIN);
assert(fd >= 0);
+ if (revents & EPOLLHUP) {
+ log_debug("Received HUP");
+ close_fd_input(u);
+ return 0;
+ }
+
+ if (!(revents & EPOLLIN)) {
+ log_warning("Unexpected poll event %"PRIu32".", revents);
+ return -EINVAL;
+ }
+
if (u->uploading) {
log_warning("dispatch_fd_input called when uploading, ignoring.");
return 0;
return r;
}
-static int setup_uploader(Uploader *u, const char *url) {
+static int dispatch_sigterm(sd_event_source *event,
+ const struct signalfd_siginfo *si,
+ void *userdata) {
+ Uploader *u = userdata;
+
+ assert(u);
+
+ log_received_signal(LOG_INFO, si);
+
+ close_fd_input(u);
+ close_journal_input(u);
+
+ sd_event_exit(u->events, 0);
+ return 0;
+}
+
+static int setup_signals(Uploader *u) {
+ sigset_t mask;
+ int r;
+
+ assert(u);
+
+ 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(u->events, &u->sigterm_event, SIGTERM, dispatch_sigterm, u);
+ if (r < 0)
+ return r;
+
+ r = sd_event_add_signal(u->events, &u->sigint_event, SIGINT, dispatch_sigterm, u);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static int setup_uploader(Uploader *u, const char *url, const char *state_file) {
int r;
assert(u);
memzero(u, sizeof(Uploader));
u->input = -1;
- u->url = url;
+ if (!startswith(url, "http://") && !startswith(url, "https://"))
+ url = strappenda("https://", url);
+
+ u->url = strappend(url, "/upload");
+ if (!u->url)
+ return log_oom();
+
+ u->state_file = state_file;
r = sd_event_default(&u->events);
if (r < 0) {
return r;
}
- return 0;
+ r = setup_signals(u);
+ if (r < 0) {
+ log_error("Failed to set up signals: %s", strerror(-r));
+ return r;
+ }
+
+ return load_cursor_state(u);
}
static void destroy_uploader(Uploader *u) {
free(u->answer);
free(u->last_cursor);
+ free(u->current_cursor);
+
+ free(u->url);
u->input_event = sd_event_source_unref(u->input_event);
close_fd_input(u);
close_journal_input(u);
+ sd_event_source_unref(u->sigterm_event);
+ sd_event_source_unref(u->sigint_event);
sd_event_unref(u->events);
}
} else
log_debug("Upload finished successfully with code %lu: %s",
status, strna(u->answer));
- return 0;
+
+ free(u->last_cursor);
+ u->last_cursor = u->current_cursor;
+ u->current_cursor = NULL;
+
+ return update_cursor_state(u);
+}
+
+static int parse_config(void) {
+ const ConfigTableItem items[] = {
+ { "Upload", "URL", config_parse_string, 0, &arg_url },
+ { "Upload", "ServerKeyFile", config_parse_path, 0, &arg_key },
+ { "Upload", "ServerCertificateFile", config_parse_path, 0, &arg_cert },
+ { "Upload", "TrustedCertificateFile", config_parse_path, 0, &arg_trust },
+ {}};
+
+ return config_parse(NULL, PKGSYSCONFDIR "/journal-upload.conf", NULL,
+ "Upload\0",
+ config_item_table_lookup, items,
+ false, false, true, NULL);
}
static void help(void) {
printf("%s -u URL {FILE|-}...\n\n"
"Upload journal events to a remote server.\n\n"
"Options:\n"
- " --url=URL Upload to this address\n"
+ " -u --url=URL Upload to this address\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"
" --cursor=CURSOR Start at the specified cursor\n"
" --after-cursor=CURSOR Start after the specified cursor\n"
" --[no-]follow Do [not] wait for input\n"
+ " --save-state[=FILE] Save uploaded cursors (default \n"
+ " " STATE_FILE ")\n"
" -h --help Show this help and exit\n"
" --version Print version string and exit\n"
, program_invocation_short_name);
ARG_AFTER_CURSOR,
ARG_FOLLOW,
ARG_NO_FOLLOW,
+ ARG_SAVE_STATE,
};
static const struct option options[] = {
{ "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR },
{ "follow", no_argument, NULL, ARG_FOLLOW },
{ "no-follow", no_argument, NULL, ARG_NO_FOLLOW },
+ { "save-state", optional_argument, NULL, ARG_SAVE_STATE },
{}
};
arg_follow = false;
break;
+ case ARG_SAVE_STATE:
+ arg_save_state = optarg ?: STATE_FILE;
+ break;
+
case '?':
log_error("Unknown option %s.", argv[optind-1]);
return -EINVAL;
log_show_color(true);
log_parse_environment();
+ r = parse_config();
+ if (r <= 0)
+ goto finish;
+
r = parse_argv(argc, argv);
if (r <= 0)
goto finish;
- r = setup_uploader(&u, arg_url);
+ r = setup_uploader(&u, arg_url, arg_save_state);
if (r < 0)
goto cleanup;
+ sd_event_set_watchdog(u.events, true);
+
log_debug("%s running as pid "PID_FMT,
program_invocation_short_name, getpid());
if (r < 0)
goto finish;
r = open_journal_for_upload(&u, j,
- arg_cursor, arg_after_cursor,
+ arg_cursor ?: u.last_cursor,
+ arg_cursor ? arg_after_cursor : true,
!!arg_follow);
if (r < 0)
goto finish;
~ianmdlvl / elogind.git / blobdiff