#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
+#include <stdbool.h>
#include <string.h>
#include <ctype.h>
#include <fcntl.h>
#include <time.h>
#include <getopt.h>
#include <dirent.h>
+#include <sys/time.h>
#include <sys/prctl.h>
#include <sys/socket.h>
#include <sys/signalfd.h>
#define UDEVD_PRIORITY -4
#define UDEV_PRIORITY -2
-static int debug;
+static bool debug;
static void log_fn(struct udev *udev, int priority,
const char *file, int line, const char *fn,
const char *format, va_list args)
{
if (debug) {
- fprintf(stderr, "[%d] %s: ", (int) getpid(), fn);
- vfprintf(stderr, format, args);
+ char buf[1024];
+ struct timeval tv;
+ struct timezone tz;
+
+ vsnprintf(buf, sizeof(buf), format, args);
+ gettimeofday(&tv, &tz);
+ fprintf(stderr, "%llu.%06u [%u] %s: %s",
+ (unsigned long long) tv.tv_sec, (unsigned int) tv.tv_usec,
+ (int) getpid(), fn, buf);
} else {
vsyslog(priority, format, args);
}
}
-static int debug_trace;
+static bool debug_trace;
static struct udev_rules *rules;
static struct udev_queue_export *udev_queue_export;
static struct udev_ctrl *udev_ctrl;
static struct udev_monitor *monitor;
static int worker_watch[2];
static pid_t settle_pid;
-static int stop_exec_queue;
-static int reload_config;
+static bool stop_exec_queue;
+static bool reload_config;
static int max_childs;
static int childs;
+static sigset_t orig_sigmask;
static struct udev_list_node event_list;
static struct udev_list_node worker_list;
-static int udev_exit;
+static bool udev_exit;
static volatile sig_atomic_t worker_exit;
enum poll_fd {
const char *devpath;
size_t devpath_len;
const char *devpath_old;
+ dev_t devnum;
+ bool is_block;
};
static struct event *node_to_event(struct udev_list_node *node)
udev_list_node_remove(&event->node);
/* mark as failed, if "add" event returns non-zero */
- if (event->exitcode && strcmp(udev_device_get_action(event->dev), "add") == 0)
+ if (event->exitcode != 0 && strcmp(udev_device_get_action(event->dev), "add") == 0)
udev_queue_export_device_failed(udev_queue_export, event->dev);
else
udev_queue_export_device_finished(udev_queue_export, event->dev);
_exit(1);
break;
case SIGTERM:
- worker_exit = 1;
+ worker_exit = true;
break;
}
}
/* allow the main daemon netlink address to send devices to the worker */
udev_monitor_allow_unicast_sender(worker_monitor, monitor);
udev_monitor_enable_receiving(worker_monitor);
- util_set_fd_cloexec(udev_monitor_get_fd(worker_monitor));
worker = calloc(1, sizeof(struct worker));
if (worker == NULL)
do {
struct udev_event *udev_event;
- struct worker_message msg;
+ struct worker_message msg = {};
int err;
+ int failed = 0;
+ info(event->udev, "seq %llu running\n", udev_device_get_seqnum(dev));
udev_event = udev_event_new(dev);
if (udev_event == NULL)
_exit(3);
/* execute RUN= */
if (err == 0 && !udev_event->ignore_device && udev_get_run(udev_event->udev))
- udev_event_execute_run(udev_event);
+ failed = udev_event_execute_run(udev_event,
+ &orig_sigmask);
/* reset alarm */
alarm(0);
udev_monitor_send_device(worker_monitor, NULL, dev);
/* send back the result of the event execution */
- msg.exitcode = err;
+ if (err != 0)
+ msg.exitcode = err;
+ else if (failed != 0)
+ msg.exitcode = failed;
msg.pid = getpid();
send(worker_watch[WRITE_END], &msg, sizeof(struct worker_message), 0);
event->devpath = udev_device_get_devpath(dev);
event->devpath_len = strlen(event->devpath);
event->devpath_old = udev_device_get_devpath_old(dev);
+ event->devnum = udev_device_get_devnum(dev);
+ event->is_block = (strcmp("block", udev_device_get_subsystem(dev)) == 0);
udev_queue_export_device_queued(udev_queue_export, dev);
info(event->udev, "seq %llu queued, '%s' '%s'\n", udev_device_get_seqnum(dev),
}
/* lookup event for identical, parent, child device */
-static int devpath_busy(struct event *event)
+static bool is_devpath_busy(struct event *event)
{
struct udev_list_node *loop;
size_t common;
/* event we checked earlier still exists, no need to check again */
if (loop_event->seqnum == event->delaying_seqnum)
- return 2;
+ return true;
/* found ourself, no later event can block us */
if (loop_event->seqnum >= event->seqnum)
break;
+ /* check major/minor */
+ if (major(event->devnum) != 0 && event->devnum == loop_event->devnum && event->is_block == loop_event->is_block)
+ return true;
+
/* check our old name */
- if (event->devpath_old != NULL)
- if (strcmp(loop_event->devpath, event->devpath_old) == 0) {
- event->delaying_seqnum = loop_event->seqnum;
- return 3;
- }
+ if (event->devpath_old != NULL && strcmp(loop_event->devpath, event->devpath_old) == 0) {
+ event->delaying_seqnum = loop_event->seqnum;
+ return true;
+ }
/* compare devpath */
common = MIN(loop_event->devpath_len, event->devpath_len);
/* identical device event found */
if (loop_event->devpath_len == event->devpath_len) {
event->delaying_seqnum = loop_event->seqnum;
- return 4;
+ return true;
}
/* parent device event found */
if (event->devpath[common] == '/') {
event->delaying_seqnum = loop_event->seqnum;
- return 5;
+ return true;
}
/* child device event found */
if (loop_event->devpath[common] == '/') {
event->delaying_seqnum = loop_event->seqnum;
- return 6;
+ return true;
}
/* no matching device */
continue;
}
- return 0;
+ return false;
}
static void events_start(struct udev *udev)
continue;
/* do not start event if parent or child event is still running */
- if (devpath_busy(event) != 0) {
+ if (is_devpath_busy(event)) {
dbg(udev, "delay seq %llu (%s)\n", event->seqnum, event->devpath);
continue;
}
if (udev_ctrl_get_stop_exec_queue(ctrl_msg) > 0) {
info(udev, "udevd message (STOP_EXEC_QUEUE) received\n");
- stop_exec_queue = 1;
+ stop_exec_queue = true;
}
if (udev_ctrl_get_start_exec_queue(ctrl_msg) > 0) {
info(udev, "udevd message (START_EXEC_QUEUE) received\n");
- stop_exec_queue = 0;
+ stop_exec_queue = false;
}
if (udev_ctrl_get_reload_rules(ctrl_msg) > 0) {
info(udev, "udevd message (RELOAD_RULES) received\n");
- reload_config = 1;
+ reload_config = true;
}
str = udev_ctrl_get_set_env(ctrl_msg);
/* read inotify messages */
static int handle_inotify(struct udev *udev)
{
- ssize_t nbytes, pos;
+ int nbytes, pos;
char *buf;
struct inotify_event *ev;
ev = (struct inotify_event *)(buf + pos);
if (ev->len) {
dbg(udev, "inotify event: %x for %s\n", ev->mask, ev->name);
- reload_config = 1;
+ reload_config = true;
continue;
}
switch (signo) {
case SIGINT:
case SIGTERM:
- udev_exit = 1;
+ udev_exit = true;
break;
case SIGCHLD:
while (1) {
}
break;
case SIGHUP:
- reload_config = 1;
+ reload_config = true;
break;
}
}
if (f != NULL)
fprintf(f, "<3>%s\n", depr_str);
err(udev, "%s\n", depr_str);
- sleep(3);
+ sleep(15);
}
if (f != NULL)
int fd;
sigset_t mask;
const char *value;
- int daemonize = 0;
+ int daemonize = false;
int resolve_names = 1;
static const struct option options[] = {
{ "daemon", no_argument, NULL, 'd' },
switch (option) {
case 'd':
- daemonize = 1;
+ daemonize = true;
break;
case 't':
- debug_trace = 1;
+ debug_trace = true;
break;
case 'D':
- debug = 1;
+ debug = true;
if (udev_get_log_priority(udev) < LOG_INFO)
udev_set_log_priority(udev, LOG_INFO);
break;
/* block and listen to all signals on signalfd */
sigfillset(&mask);
- sigprocmask(SIG_SETMASK, &mask, NULL);
+ sigprocmask(SIG_SETMASK, &mask, &orig_sigmask);
pfd[FD_SIGNAL].fd = signalfd(-1, &mask, 0);
if (pfd[FD_SIGNAL].fd < 0) {
fprintf(stderr, "error getting signalfd\n");
}
/* unnamed socket from workers to the main daemon */
- if (socketpair(AF_LOCAL, SOCK_DGRAM, 0, worker_watch) < 0) {
+ if (socketpair(AF_LOCAL, SOCK_DGRAM|SOCK_CLOEXEC, 0, worker_watch) < 0) {
fprintf(stderr, "error getting socketpair\n");
err(udev, "error getting socketpair\n");
rc = 6;
goto exit;
}
pfd[FD_WORKER].fd = worker_watch[READ_END];
- util_set_fd_cloexec(worker_watch[WRITE_END]);
rules = udev_rules_new(udev, resolve_names);
if (rules == NULL) {
~ianmdlvl / elogind.git / blobdiff