--- /dev/null
+/*
+ * test-libudev
+ *
+ * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This library 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.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <getopt.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <sys/epoll.h>
+
+#include "libudev.h"
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+static void log_fn(struct udev *udev,
+ int priority, const char *file, int line, const char *fn,
+ const char *format, va_list args)
+{
+ printf("test-libudev: %s %s:%d ", fn, file, line);
+ vprintf(format, args);
+}
+
+static void print_device(struct udev_device *device)
+{
+ const char *str;
+ dev_t devnum;
+ int count;
+ struct udev_list_entry *list_entry;
+
+ printf("*** device: %p ***\n", device);
+ str = udev_device_get_action(device);
+ if (str != NULL)
+ printf("action: '%s'\n", str);
+
+ str = udev_device_get_syspath(device);
+ printf("syspath: '%s'\n", str);
+
+ str = udev_device_get_sysname(device);
+ printf("sysname: '%s'\n", str);
+
+ str = udev_device_get_sysnum(device);
+ if (str != NULL)
+ printf("sysnum: '%s'\n", str);
+
+ str = udev_device_get_devpath(device);
+ printf("devpath: '%s'\n", str);
+
+ str = udev_device_get_subsystem(device);
+ if (str != NULL)
+ printf("subsystem: '%s'\n", str);
+
+ str = udev_device_get_devtype(device);
+ if (str != NULL)
+ printf("devtype: '%s'\n", str);
+
+ str = udev_device_get_driver(device);
+ if (str != NULL)
+ printf("driver: '%s'\n", str);
+
+ str = udev_device_get_devnode(device);
+ if (str != NULL)
+ printf("devname: '%s'\n", str);
+
+ devnum = udev_device_get_devnum(device);
+ if (major(devnum) > 0)
+ printf("devnum: %u:%u\n", major(devnum), minor(devnum));
+
+ count = 0;
+ udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) {
+ printf("link: '%s'\n", udev_list_entry_get_name(list_entry));
+ count++;
+ }
+ if (count > 0)
+ printf("found %i links\n", count);
+
+ count = 0;
+ udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device)) {
+ printf("property: '%s=%s'\n",
+ udev_list_entry_get_name(list_entry),
+ udev_list_entry_get_value(list_entry));
+ count++;
+ }
+ if (count > 0)
+ printf("found %i properties\n", count);
+
+ str = udev_device_get_property_value(device, "MAJOR");
+ if (str != NULL)
+ printf("MAJOR: '%s'\n", str);
+
+ str = udev_device_get_sysattr_value(device, "dev");
+ if (str != NULL)
+ printf("attr{dev}: '%s'\n", str);
+
+ printf("\n");
+}
+
+static int test_device(struct udev *udev, const char *syspath)
+{
+ struct udev_device *device;
+
+ printf("looking at device: %s\n", syspath);
+ device = udev_device_new_from_syspath(udev, syspath);
+ if (device == NULL) {
+ printf("no device found\n");
+ return -1;
+ }
+ print_device(device);
+ udev_device_unref(device);
+ return 0;
+}
+
+static int test_device_parents(struct udev *udev, const char *syspath)
+{
+ struct udev_device *device;
+ struct udev_device *device_parent;
+
+ printf("looking at device: %s\n", syspath);
+ device = udev_device_new_from_syspath(udev, syspath);
+ if (device == NULL)
+ return -1;
+
+ printf("looking at parents\n");
+ device_parent = device;
+ do {
+ print_device(device_parent);
+ device_parent = udev_device_get_parent(device_parent);
+ } while (device_parent != NULL);
+
+ printf("looking at parents again\n");
+ device_parent = device;
+ do {
+ print_device(device_parent);
+ device_parent = udev_device_get_parent(device_parent);
+ } while (device_parent != NULL);
+ udev_device_unref(device);
+
+ return 0;
+}
+
+static int test_device_devnum(struct udev *udev)
+{
+ dev_t devnum = makedev(1, 3);
+ struct udev_device *device;
+
+ printf("looking up device: %u:%u\n", major(devnum), minor(devnum));
+ device = udev_device_new_from_devnum(udev, 'c', devnum);
+ if (device == NULL)
+ return -1;
+ print_device(device);
+ udev_device_unref(device);
+ return 0;
+}
+
+static int test_device_subsys_name(struct udev *udev)
+{
+ struct udev_device *device;
+
+ printf("looking up device: 'block':'sda'\n");
+ device = udev_device_new_from_subsystem_sysname(udev, "block", "sda");
+ if (device == NULL)
+ return -1;
+ print_device(device);
+ udev_device_unref(device);
+
+ printf("looking up device: 'subsystem':'pci'\n");
+ device = udev_device_new_from_subsystem_sysname(udev, "subsystem", "pci");
+ if (device == NULL)
+ return -1;
+ print_device(device);
+ udev_device_unref(device);
+
+ printf("looking up device: 'drivers':'scsi:sd'\n");
+ device = udev_device_new_from_subsystem_sysname(udev, "drivers", "scsi:sd");
+ if (device == NULL)
+ return -1;
+ print_device(device);
+ udev_device_unref(device);
+
+ printf("looking up device: 'module':'printk'\n");
+ device = udev_device_new_from_subsystem_sysname(udev, "module", "printk");
+ if (device == NULL)
+ return -1;
+ print_device(device);
+ udev_device_unref(device);
+ return 0;
+}
+
+static int test_enumerate_print_list(struct udev_enumerate *enumerate)
+{
+ struct udev_list_entry *list_entry;
+ int count = 0;
+
+ udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) {
+ struct udev_device *device;
+
+ device = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerate),
+ udev_list_entry_get_name(list_entry));
+ if (device != NULL) {
+ printf("device: '%s' (%s)\n",
+ udev_device_get_syspath(device),
+ udev_device_get_subsystem(device));
+ udev_device_unref(device);
+ count++;
+ }
+ }
+ printf("found %i devices\n\n", count);
+ return count;
+}
+
+static int test_monitor(struct udev *udev)
+{
+ struct udev_monitor *udev_monitor = NULL;
+ int fd_ep;
+ int fd_udev = -1;
+ struct epoll_event ep_udev, ep_stdin;
+
+ fd_ep = epoll_create1(EPOLL_CLOEXEC);
+ if (fd_ep < 0) {
+ printf("error creating epoll fd: %m\n");
+ goto out;
+ }
+
+ udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
+ if (udev_monitor == NULL) {
+ printf("no socket\n");
+ goto out;
+ }
+ fd_udev = udev_monitor_get_fd(udev_monitor);
+
+ if (udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "block", NULL) < 0 ||
+ udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL) < 0 ||
+ udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device") < 0) {
+ printf("filter failed\n");
+ goto out;
+ }
+
+ if (udev_monitor_enable_receiving(udev_monitor) < 0) {
+ printf("bind failed\n");
+ goto out;
+ }
+
+ memset(&ep_udev, 0, sizeof(struct epoll_event));
+ ep_udev.events = EPOLLIN;
+ ep_udev.data.fd = fd_udev;
+ if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_udev, &ep_udev) < 0) {
+ printf("fail to add fd to epoll: %m\n");
+ goto out;
+ }
+
+ memset(&ep_stdin, 0, sizeof(struct epoll_event));
+ ep_stdin.events = EPOLLIN;
+ ep_stdin.data.fd = STDIN_FILENO;
+ if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, STDIN_FILENO, &ep_stdin) < 0) {
+ printf("fail to add fd to epoll: %m\n");
+ goto out;
+ }
+
+ for (;;) {
+ int fdcount;
+ struct epoll_event ev[4];
+ struct udev_device *device;
+ int i;
+
+ printf("waiting for events from udev, press ENTER to exit\n");
+ fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), -1);
+ printf("epoll fd count: %i\n", fdcount);
+
+ for (i = 0; i < fdcount; i++) {
+ if (ev[i].data.fd == fd_udev && ev[i].events & EPOLLIN) {
+ device = udev_monitor_receive_device(udev_monitor);
+ if (device == NULL) {
+ printf("no device from socket\n");
+ continue;
+ }
+ print_device(device);
+ udev_device_unref(device);
+ } else if (ev[i].data.fd == STDIN_FILENO && ev[i].events & EPOLLIN) {
+ printf("exiting loop\n");
+ goto out;
+ }
+ }
+ }
+out:
+ if (fd_ep >= 0)
+ close(fd_ep);
+ udev_monitor_unref(udev_monitor);
+ return 0;
+}
+
+static int test_queue(struct udev *udev)
+{
+ struct udev_queue *udev_queue;
+ unsigned long long int seqnum;
+ struct udev_list_entry *list_entry;
+
+ udev_queue = udev_queue_new(udev);
+ if (udev_queue == NULL)
+ return -1;
+ seqnum = udev_queue_get_kernel_seqnum(udev_queue);
+ printf("seqnum kernel: %llu\n", seqnum);
+ seqnum = udev_queue_get_udev_seqnum(udev_queue);
+ printf("seqnum udev : %llu\n", seqnum);
+
+ if (udev_queue_get_queue_is_empty(udev_queue))
+ printf("queue is empty\n");
+ printf("get queue list\n");
+ udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue))
+ printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry));
+ printf("\n");
+ printf("get queue list again\n");
+ udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue))
+ printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry));
+ printf("\n");
+
+ list_entry = udev_queue_get_queued_list_entry(udev_queue);
+ if (list_entry != NULL) {
+ printf("event [%llu] is queued\n", seqnum);
+ seqnum = strtoull(udev_list_entry_get_value(list_entry), NULL, 10);
+ if (udev_queue_get_seqnum_is_finished(udev_queue, seqnum))
+ printf("event [%llu] is not finished\n", seqnum);
+ else
+ printf("event [%llu] is finished\n", seqnum);
+ }
+ printf("\n");
+ udev_queue_unref(udev_queue);
+ return 0;
+}
+
+static int test_enumerate(struct udev *udev, const char *subsystem)
+{
+ struct udev_enumerate *udev_enumerate;
+
+ printf("enumerate '%s'\n", subsystem == NULL ? "<all>" : subsystem);
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_add_match_subsystem(udev_enumerate, subsystem);
+ udev_enumerate_scan_devices(udev_enumerate);
+ test_enumerate_print_list(udev_enumerate);
+ udev_enumerate_unref(udev_enumerate);
+
+ printf("enumerate 'net' + duplicated scan + null + zero\n");
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_add_match_subsystem(udev_enumerate, "net");
+ udev_enumerate_scan_devices(udev_enumerate);
+ udev_enumerate_scan_devices(udev_enumerate);
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+ udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+ udev_enumerate_scan_devices(udev_enumerate);
+ test_enumerate_print_list(udev_enumerate);
+ udev_enumerate_unref(udev_enumerate);
+
+ printf("enumerate 'block'\n");
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_add_match_subsystem(udev_enumerate,"block");
+ udev_enumerate_add_match_is_initialized(udev_enumerate);
+ udev_enumerate_scan_devices(udev_enumerate);
+ test_enumerate_print_list(udev_enumerate);
+ udev_enumerate_unref(udev_enumerate);
+
+ printf("enumerate 'not block'\n");
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_add_nomatch_subsystem(udev_enumerate, "block");
+ udev_enumerate_scan_devices(udev_enumerate);
+ test_enumerate_print_list(udev_enumerate);
+ udev_enumerate_unref(udev_enumerate);
+
+ printf("enumerate 'pci, mem, vc'\n");
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_add_match_subsystem(udev_enumerate, "pci");
+ udev_enumerate_add_match_subsystem(udev_enumerate, "mem");
+ udev_enumerate_add_match_subsystem(udev_enumerate, "vc");
+ udev_enumerate_scan_devices(udev_enumerate);
+ test_enumerate_print_list(udev_enumerate);
+ udev_enumerate_unref(udev_enumerate);
+
+ printf("enumerate 'subsystem'\n");
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_scan_subsystems(udev_enumerate);
+ test_enumerate_print_list(udev_enumerate);
+ udev_enumerate_unref(udev_enumerate);
+
+ printf("enumerate 'property IF_FS_*=filesystem'\n");
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_add_match_property(udev_enumerate, "ID_FS*", "filesystem");
+ udev_enumerate_scan_devices(udev_enumerate);
+ test_enumerate_print_list(udev_enumerate);
+ udev_enumerate_unref(udev_enumerate);
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ struct udev *udev = NULL;
+ static const struct option options[] = {
+ { "syspath", required_argument, NULL, 'p' },
+ { "subsystem", required_argument, NULL, 's' },
+ { "debug", no_argument, NULL, 'd' },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ {}
+ };
+ const char *syspath = "/devices/virtual/mem/null";
+ const char *subsystem = NULL;
+ char path[1024];
+ const char *str;
+
+ udev = udev_new();
+ printf("context: %p\n", udev);
+ if (udev == NULL) {
+ printf("no context\n");
+ return 1;
+ }
+ udev_set_log_fn(udev, log_fn);
+ printf("set log: %p\n", log_fn);
+
+ for (;;) {
+ int option;
+
+ option = getopt_long(argc, argv, "+p:s:dhV", options, NULL);
+ if (option == -1)
+ break;
+
+ switch (option) {
+ case 'p':
+ syspath = optarg;
+ break;
+ case 's':
+ subsystem = optarg;
+ break;
+ case 'd':
+ if (udev_get_log_priority(udev) < LOG_INFO)
+ udev_set_log_priority(udev, LOG_INFO);
+ break;
+ case 'h':
+ printf("--debug --syspath= --subsystem= --help\n");
+ goto out;
+ case 'V':
+ printf("%s\n", VERSION);
+ goto out;
+ default:
+ goto out;
+ }
+ }
+
+ str = udev_get_sys_path(udev);
+ printf("sys_path: '%s'\n", str);
+ str = udev_get_dev_path(udev);
+ printf("dev_path: '%s'\n", str);
+
+ /* add sys path if needed */
+ if (strncmp(syspath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0) {
+ snprintf(path, sizeof(path), "%s%s", udev_get_sys_path(udev), syspath);
+ syspath = path;
+ }
+
+ test_device(udev, syspath);
+ test_device_devnum(udev);
+ test_device_subsys_name(udev);
+ test_device_parents(udev, syspath);
+
+ test_enumerate(udev, subsystem);
+
+ test_queue(udev);
+
+ test_monitor(udev);
+out:
+ udev_unref(udev);
+ return 0;
+}
~ianmdlvl / elogind.git / blobdiff