+++ /dev/null
-/*
- * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation version 2 of the License.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <signal.h>
-#include <getopt.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <sys/select.h>
-#include <linux/types.h>
-#include <linux/netlink.h>
-
-#include "udev.h"
-
-static int udev_exit;
-
-static void asmlinkage sig_handler(int signum)
-{
- if (signum == SIGINT || signum == SIGTERM)
- udev_exit = 1;
-}
-
-static int print_properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data)
-{
- printf("%s=%s\n", key, value);
- return 0;
-}
-
-static void print_properties(struct udev_device *device)
-{
- udev_device_get_properties(device, print_properties_cb, NULL);
- printf("\n");
-}
-
-int udevadm_monitor(struct udev *udev, int argc, char *argv[])
-{
- struct sigaction act;
- int option;
- int env = 0;
- int print_kernel = 0;
- int print_udev = 0;
- struct udev_monitor *udev_monitor = NULL;
- struct udev_monitor *kernel_monitor = NULL;
- fd_set readfds;
- int rc = 0;
-
- static const struct option options[] = {
- { "environment", 0, NULL, 'e' },
- { "kernel", 0, NULL, 'k' },
- { "udev", 0, NULL, 'u' },
- { "help", 0, NULL, 'h' },
- {}
- };
-
- while (1) {
- option = getopt_long(argc, argv, "ekuh", options, NULL);
- if (option == -1)
- break;
-
- switch (option) {
- case 'e':
- env = 1;
- break;
- case 'k':
- print_kernel = 1;
- break;
- case 'u':
- print_udev = 1;
- break;
- case 'h':
- printf("Usage: udevadm monitor [--environment] [--kernel] [--udev] [--help]\n"
- " --env print the whole event environment\n"
- " --kernel print kernel uevents\n"
- " --udev print udev events\n"
- " --help print this help text\n\n");
- default:
- goto out;
- }
- }
-
- if (!print_kernel && !print_udev) {
- print_kernel = 1;
- print_udev =1;
- }
-
- if (getuid() != 0 && print_kernel) {
- fprintf(stderr, "root privileges needed to subscribe to kernel events\n");
- goto out;
- }
-
- /* set signal handlers */
- memset(&act, 0x00, sizeof(struct sigaction));
- act.sa_handler = (void (*)(int)) sig_handler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = SA_RESTART;
- sigaction(SIGINT, &act, NULL);
- sigaction(SIGTERM, &act, NULL);
-
- printf("monitor will print the received events for:\n");
- if (print_udev) {
- udev_monitor = udev_monitor_new_from_socket(udev, "@/org/kernel/udev/monitor");
- if (udev_monitor == NULL) {
- rc = 1;
- goto out;
- }
- if (udev_monitor_enable_receiving(udev_monitor) < 0) {
- rc = 2;
- goto out;
- }
- printf("UDEV the event which udev sends out after rule processing\n");
- }
- if (print_kernel) {
- kernel_monitor = udev_monitor_new_from_netlink(udev);
- if (kernel_monitor == NULL) {
- rc = 3;
- goto out;
- }
- if (udev_monitor_enable_receiving(kernel_monitor) < 0) {
- rc = 4;
- goto out;
- }
- printf("UEVENT the kernel uevent\n");
- }
- printf("\n");
-
- while (!udev_exit) {
- int fdcount;
- struct timeval tv;
- struct timezone tz;
- char timestr[64];
-
- FD_ZERO(&readfds);
- if (kernel_monitor != NULL)
- FD_SET(udev_monitor_get_fd(kernel_monitor), &readfds);
- if (udev_monitor != NULL)
- FD_SET(udev_monitor_get_fd(udev_monitor), &readfds);
-
- fdcount = select(UDEV_MAX(udev_monitor_get_fd(kernel_monitor), udev_monitor_get_fd(udev_monitor))+1,
- &readfds, NULL, NULL, NULL);
- if (fdcount < 0) {
- if (errno != EINTR)
- fprintf(stderr, "error receiving uevent message: %s\n", strerror(errno));
- continue;
- }
-
- if (gettimeofday(&tv, &tz) == 0) {
- snprintf(timestr, sizeof(timestr), "%llu.%06u",
- (unsigned long long) tv.tv_sec, (unsigned int) tv.tv_usec);
- } else
- timestr[0] = '\0';
-
- if ((kernel_monitor != NULL) && FD_ISSET(udev_monitor_get_fd(kernel_monitor), &readfds)) {
- struct udev_device *device = udev_monitor_receive_device(kernel_monitor);
- if (device == NULL)
- continue;
- printf("UEVENT[%s] %-8s %s (%s)\n", timestr,
- udev_device_get_action(device),
- udev_device_get_devpath(device),
- udev_device_get_subsystem(device));
- if (env)
- print_properties(device);
- udev_device_unref(device);
- }
-
- if ((udev_monitor != NULL) && FD_ISSET(udev_monitor_get_fd(udev_monitor), &readfds)) {
- struct udev_device *device = udev_monitor_receive_device(udev_monitor);
- if (device == NULL)
- continue;
- printf("UDEV [%s] %-8s %s (%s)\n", timestr,
- udev_device_get_action(device),
- udev_device_get_devpath(device),
- udev_device_get_subsystem(device));
- if (env)
- print_properties(device);
- udev_device_unref(device);
- }
- }
-
-out:
- udev_monitor_unref(udev_monitor);
- udev_monitor_unref(kernel_monitor);
- return rc;
-}
~ianmdlvl / elogind.git / blobdiff