a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include <unistd.h>

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include <stddef.h>

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#ifdef HAVE_SELINUX

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include <selinux/selinux.h>

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#endif

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "sd-event.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "sd-daemon.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "socket-util.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "selinux-util.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "mkdir.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "fileio.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "journald-server.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "journald-stream.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "journald-syslog.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "journald-kmsg.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "journald-console.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#include "journald-wall.h"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering#define STDOUT_STREAMS_MAX 4096

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringtypedef enum StdoutStreamState {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_IDENTIFIER,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_UNIT_ID,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_PRIORITY,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_LEVEL_PREFIX,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_FORWARD_TO_SYSLOG,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_FORWARD_TO_KMSG,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_FORWARD_TO_CONSOLE,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering STDOUT_STREAM_RUNNING

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering} StdoutStreamState;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstruct StdoutStream {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering Server *server;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering StdoutStreamState state;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int fd;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering struct ucred ucred;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char *label;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char *identifier;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char *unit_id;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int priority;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering bool level_prefix:1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering bool forward_to_syslog:1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering bool forward_to_kmsg:1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering bool forward_to_console:1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering bool fdstore:1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char buffer[LINE_MAX+1];

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering size_t length;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering sd_event_source *event_source;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char *state_file;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering LIST_FIELDS(StdoutStream, stdout_stream);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering};

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringvoid stdout_stream_free(StdoutStream *s) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!s)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->server) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s->server->n_stdout_streams > 0);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->server->n_stdout_streams --;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering LIST_REMOVE(stdout_stream, s->server->stdout_streams, s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->event_source) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering sd_event_source_set_enabled(s->event_source, SD_EVENT_OFF);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->event_source = sd_event_source_unref(s->event_source);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering safe_close(s->fd);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering free(s->label);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering free(s->identifier);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering free(s->unit_id);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering free(s->state_file);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering free(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart PoetteringDEFINE_TRIVIAL_CLEANUP_FUNC(StdoutStream*, stdout_stream_free);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic void stdout_stream_destroy(StdoutStream *s) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!s)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->state_file)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering unlink(s->state_file);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stdout_stream_free(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_save(StdoutStream *s) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_free_ char *temp_path = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_fclose_ FILE *f = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->state != STDOUT_STREAM_RUNNING)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!s->state_file) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering struct stat st;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = fstat(s->fd, &st);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_warning_errno(errno, "Failed to stat connected stream: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering /* We use device and inode numbers as identifier for the stream */

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (asprintf(&s->state_file, "/run/systemd/journal/streams/%lu:%lu", (unsigned long) st.st_dev, (unsigned long) st.st_ino) < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_oom();

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering mkdir_p("/run/systemd/journal/streams", 0755);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = fopen_temporary(s->state_file, &f, &temp_path);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto finish;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering fprintf(f,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "# This is private data. Do not parse\n"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "PRIORITY=%i\n"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "LEVEL_PREFIX=%i\n"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "FORWARD_TO_SYSLOG=%i\n"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "FORWARD_TO_KMSG=%i\n"

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "FORWARD_TO_CONSOLE=%i\n",

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->priority,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->level_prefix,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->forward_to_syslog,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->forward_to_kmsg,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->forward_to_console);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!isempty(s->identifier)) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_free_ char *escaped;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering escaped = cescape(s->identifier);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!escaped) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = -ENOMEM;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto finish;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering fprintf(f, "IDENTIFIER=%s\n", escaped);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!isempty(s->unit_id)) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_free_ char *escaped;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering escaped = cescape(s->unit_id);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!escaped) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = -ENOMEM;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto finish;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering fprintf(f, "UNIT=%s\n", escaped);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = fflush_and_check(f);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto finish;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (rename(temp_path, s->state_file) < 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = -errno;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto finish;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering free(temp_path);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering temp_path = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering /* Store the connection fd in PID 1, so that we get it passed

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!s->fdstore) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering sd_pid_notify_with_fds(0, false, "FDSTORE=1", &s->fd, 1);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->fdstore = true;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringfinish:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (temp_path)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering unlink(temp_path);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_error_errno(r, "Failed to save stream data %s: %m", s->state_file);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_log(StdoutStream *s, const char *p) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering struct iovec iovec[N_IOVEC_META_FIELDS + 5];

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int priority;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char syslog_priority[] = "PRIORITY=\0";

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char syslog_facility[sizeof("SYSLOG_FACILITY=")-1 + DECIMAL_STR_MAX(int) + 1];

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_free_ char *message = NULL, *syslog_identifier = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering unsigned n = 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering size_t label_len;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (isempty(p))

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering priority = s->priority;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->level_prefix)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering syslog_parse_priority(&p, &priority, false);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->forward_to_syslog || s->server->forward_to_syslog)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering server_forward_syslog(s->server, syslog_fixup_facility(priority), s->identifier, p, &s->ucred, NULL);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->forward_to_kmsg || s->server->forward_to_kmsg)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering server_forward_kmsg(s->server, priority, s->identifier, p, &s->ucred);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->forward_to_console || s->server->forward_to_console)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering server_forward_console(s->server, priority, s->identifier, p, &s->ucred);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->server->forward_to_wall)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering server_forward_wall(s->server, priority, s->identifier, p, &s->ucred);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=stdout");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering syslog_priority[strlen("PRIORITY=")] = '0' + LOG_PRI(priority);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering IOVEC_SET_STRING(iovec[n++], syslog_priority);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (priority & LOG_FACMASK) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering xsprintf(syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority));

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering IOVEC_SET_STRING(iovec[n++], syslog_facility);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->identifier) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering syslog_identifier = strappend("SYSLOG_IDENTIFIER=", s->identifier);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (syslog_identifier)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering IOVEC_SET_STRING(iovec[n++], syslog_identifier);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering message = strappend("MESSAGE=", p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (message)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering IOVEC_SET_STRING(iovec[n++], message);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering label_len = s->label ? strlen(s->label) : 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering server_dispatch_message(s->server, iovec, n, ELEMENTSOF(iovec), &s->ucred, NULL, s->label, label_len, s->unit_id, priority, 0);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_line(StdoutStream *s, char *p) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering p = strstrip(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering switch (s->state) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_IDENTIFIER:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (isempty(p))

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->identifier = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering else {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->identifier = strdup(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!s->identifier)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_oom();

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->state = STDOUT_STREAM_UNIT_ID;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_UNIT_ID:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->ucred.uid == 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (isempty(p))

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->unit_id = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering else {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->unit_id = strdup(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!s->unit_id)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_oom();

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->state = STDOUT_STREAM_PRIORITY;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_PRIORITY:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = safe_atoi(p, &s->priority);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0 || s->priority < 0 || s->priority > 999) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning("Failed to parse log priority line.");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -EINVAL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->state = STDOUT_STREAM_LEVEL_PREFIX;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_LEVEL_PREFIX:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning("Failed to parse level prefix line.");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -EINVAL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->level_prefix = !!r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->state = STDOUT_STREAM_FORWARD_TO_SYSLOG;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_FORWARD_TO_SYSLOG:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning("Failed to parse forward to syslog line.");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -EINVAL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->forward_to_syslog = !!r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->state = STDOUT_STREAM_FORWARD_TO_KMSG;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_FORWARD_TO_KMSG:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning("Failed to parse copy to kmsg line.");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -EINVAL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->forward_to_kmsg = !!r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->state = STDOUT_STREAM_FORWARD_TO_CONSOLE;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_FORWARD_TO_CONSOLE:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning("Failed to parse copy to console line.");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -EINVAL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->forward_to_console = !!r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->state = STDOUT_STREAM_RUNNING;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering /* Try to save the stream, so that journald can be restarted and we can recover */

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering (void) stdout_stream_save(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering case STDOUT_STREAM_RUNNING:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return stdout_stream_log(s, p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert_not_reached("Unknown stream state");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_scan(StdoutStream *s, bool force_flush) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char *p;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering size_t remaining;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering p = s->buffer;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering remaining = s->length;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering for (;;) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering char *end;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering size_t skip;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering end = memchr(p, '\n', remaining);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (end)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering skip = end - p + 1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering else if (remaining >= sizeof(s->buffer) - 1) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering end = p + sizeof(s->buffer) - 1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering skip = remaining;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering } else

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering break;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering *end = 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = stdout_stream_line(s, p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering remaining -= skip;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering p += skip;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (force_flush && remaining > 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering p[remaining] = 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = stdout_stream_line(s, p);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering p += remaining;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering remaining = 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (p > s->buffer) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering memmove(s->buffer, p, remaining);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->length = remaining;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_process(sd_event_source *es, int fd, uint32_t revents, void *userdata) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering StdoutStream *s = userdata;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering ssize_t l;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if ((revents|EPOLLIN|EPOLLHUP) != (EPOLLIN|EPOLLHUP)) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_error("Got invalid event from epoll for stdout stream: %"PRIx32, revents);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto terminate;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering l = read(s->fd, s->buffer+s->length, sizeof(s->buffer)-1-s->length);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (l < 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (errno == EAGAIN)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning_errno(errno, "Failed to read from stream: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto terminate;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (l == 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stdout_stream_scan(s, true);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto terminate;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->length += l;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = stdout_stream_scan(s, false);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering goto terminate;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringterminate:

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stdout_stream_destroy(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_install(Server *s, int fd, StdoutStream **ret) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_(stdout_stream_freep) StdoutStream *stream = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(fd >= 0);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream = new0(StdoutStream, 1);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!stream)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_oom();

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->fd = -1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->priority = LOG_INFO;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = getpeercred(fd, &stream->ucred);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_error_errno(r, "Failed to determine peer credentials: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (mac_selinux_use()) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = getpeersec(fd, &stream->label);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0 && r != -EOPNOTSUPP)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering (void) log_warning_errno(r, "Failed to determine peer security context: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering (void) shutdown(fd, SHUT_WR);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = sd_event_add_io(s->event, &stream->event_source, fd, EPOLLIN, stdout_stream_process, stream);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_error_errno(r, "Failed to add stream to event loop: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = sd_event_source_set_priority(stream->event_source, SD_EVENT_PRIORITY_NORMAL+5);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_error_errno(r, "Failed to adjust stdout event source priority: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->fd = fd;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->server = s;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering LIST_PREPEND(stdout_stream, s->stdout_streams, stream);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering s->n_stdout_streams ++;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (ret)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering *ret = stream;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_new(sd_event_source *es, int listen_fd, uint32_t revents, void *userdata) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_close_ int fd = -1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering Server *s = userdata;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (revents != EPOLLIN) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_error("Got invalid event from epoll for stdout server fd: %"PRIx32, revents);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -EIO;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering fd = accept4(s->stdout_fd, NULL, NULL, SOCK_NONBLOCK|SOCK_CLOEXEC);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (fd < 0) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (errno == EAGAIN)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_error_errno(errno, "Failed to accept stdout connection: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -errno;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->n_stdout_streams >= STDOUT_STREAMS_MAX) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning("Too many stdout streams, refusing connection.");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = stdout_stream_install(s, fd, NULL);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering fd = -1;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_load(StdoutStream *stream, const char *fname) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_free_ char

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering *priority = NULL,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering *level_prefix = NULL,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering *forward_to_syslog = NULL,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering *forward_to_kmsg = NULL,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering *forward_to_console = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(stream);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(fname);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!stream->state_file) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->state_file = strappend("/run/systemd/journal/streams/", fname);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!stream->state_file)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_oom();

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_env_file(stream->state_file, NEWLINE,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "PRIORITY", &priority,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "LEVEL_PREFIX", &level_prefix,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "FORWARD_TO_SYSLOG", &forward_to_syslog,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "FORWARD_TO_KMSG", &forward_to_kmsg,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "FORWARD_TO_CONSOLE", &forward_to_console,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "IDENTIFIER", &stream->identifier,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering "UNIT", &stream->unit_id,

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering NULL);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_error_errno(r, "Failed to read: %s", stream->state_file);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (priority) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int p;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering p = log_level_from_string(priority);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (p >= 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->priority = p;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (level_prefix) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(level_prefix);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r >= 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->level_prefix = r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (forward_to_syslog) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(forward_to_syslog);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r >= 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->forward_to_syslog = r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (forward_to_kmsg) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(forward_to_kmsg);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r >= 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->forward_to_kmsg = r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (forward_to_console) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = parse_boolean(forward_to_console);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r >= 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->forward_to_console = r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int stdout_stream_restore(Server *s, const char *fname, int fd) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering StdoutStream *stream;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(s);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(fname);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering assert(fd >= 0);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (s->n_stdout_streams >= STDOUT_STREAMS_MAX) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering log_warning("Too many stdout streams, refusing restoring of stream.");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return -ENOBUFS;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering r = stdout_stream_install(s, fd, &stream);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (r < 0)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->state = STDOUT_STREAM_RUNNING;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering stream->fdstore = true;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering /* Ignore all parsing errors */

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering (void) stdout_stream_load(stream, fname);

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering}

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poetteringstatic int server_restore_streams(Server *s, FDSet *fds) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering _cleanup_closedir_ DIR *d = NULL;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering struct dirent *de;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int r;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering d = opendir("/run/systemd/journal/streams");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (!d) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (errno == ENOENT)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return 0;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering return log_warning_errno(errno, "Failed to enumerate /run/systemd/journal/streams: %m");

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering }

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering FOREACH_DIRENT(de, d, goto fail) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering unsigned long st_dev, st_ino;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering bool found = false;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering Iterator i;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering int fd;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering if (sscanf(de->d_name, "%lu:%lu", &st_dev, &st_ino) != 2)

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering continue;

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering FDSET_FOREACH(fd, fds, i) {

a1ad376761af16da46c9ad90fd8df41c8c5c0976Lennart Poettering struct stat st;

if (fstat(fd, &st) < 0)

return log_error_errno(errno, "Failed to stat %s: %m", de->d_name);

if (S_ISSOCK(st.st_mode) && st.st_dev == st_dev && st.st_ino == st_ino) {

found = true;

break;

}

}

if (!found) {

/* No file descriptor? Then let's delete the state file */

log_debug("Cannot restore stream file %s", de->d_name);

unlinkat(dirfd(d), de->d_name, 0);

continue;

}

fdset_remove(fds, fd);

r = stdout_stream_restore(s, de->d_name, fd);

if (r < 0)

safe_close(fd);

}

return 0;

fail:

return log_error_errno(errno, "Failed to read streams directory: %m");

}

int server_open_stdout_socket(Server *s, FDSet *fds) {

int r;

assert(s);

if (s->stdout_fd < 0) {

union sockaddr_union sa = {

.un.sun_family = AF_UNIX,

.un.sun_path = "/run/systemd/journal/stdout",

};

s->stdout_fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);

if (s->stdout_fd < 0)

return log_error_errno(errno, "socket() failed: %m");

unlink(sa.un.sun_path);

r = bind(s->stdout_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path));

if (r < 0)

return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);

(void) chmod(sa.un.sun_path, 0666);

if (listen(s->stdout_fd, SOMAXCONN) < 0)

return log_error_errno(errno, "listen(%s) failed: %m", sa.un.sun_path);

} else

fd_nonblock(s->stdout_fd, 1);

r = sd_event_add_io(s->event, &s->stdout_event_source, s->stdout_fd, EPOLLIN, stdout_stream_new, s);

if (r < 0)

return log_error_errno(r, "Failed to add stdout server fd to event source: %m");

r = sd_event_source_set_priority(s->stdout_event_source, SD_EVENT_PRIORITY_NORMAL+10);

if (r < 0)

return log_error_errno(r, "Failed to adjust priority of stdout server event source: %m");

/* Try to restore streams, but don't bother if this fails */

(void) server_restore_streams(s, fds);

return 0;

}