+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-/***
- This file is part of systemd.
-
- Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
-
- systemd 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.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdio.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <sys/epoll.h>
-
-#include "libudev.h"
-#include "udev-util.h"
-#include "util.h"
-
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
-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) {
- _cleanup_udev_device_unref_ 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);
-
- return 0;
-}
-
-static int test_device_parents(struct udev *udev, const char *syspath) {
- _cleanup_udev_device_unref_ 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);
-
- 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;
- }
-
- memzero(&ep_udev, 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;
- }
-
- memzero(&ep_stdin, 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;
-
- udev_queue = udev_queue_new(udev);
- if (udev_queue == NULL)
- return -1;
-
- if (udev_queue_get_queue_is_empty(udev_queue))
- printf("queue is empty\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;
-}
-
-static void test_hwdb(struct udev *udev, const char *modalias) {
- struct udev_hwdb *hwdb;
- struct udev_list_entry *entry;
-
- hwdb = udev_hwdb_new(udev);
-
- udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, modalias, 0))
- printf("'%s'='%s'\n", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry));
- printf("\n");
-
- hwdb = udev_hwdb_unref(hwdb);
- assert_se(hwdb == NULL);
-}
-
-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];
- int c;
-
- udev = udev_new();
- printf("context: %p\n", udev);
- if (udev == NULL) {
- printf("no context\n");
- return 1;
- }
-
- while ((c = getopt_long(argc, argv, "p:s:dhV", options, NULL)) >= 0)
- switch (c) {
-
- case 'p':
- syspath = optarg;
- break;
-
- case 's':
- subsystem = optarg;
- break;
-
- case 'd':
- if (log_get_max_level() < LOG_INFO)
- log_set_max_level(LOG_INFO);
- break;
-
- case 'h':
- printf("--debug --syspath= --subsystem= --help\n");
- goto out;
-
- case 'V':
- printf("%s\n", VERSION);
- goto out;
-
- case '?':
- goto out;
-
- default:
- assert_not_reached("Unhandled option code.");
- }
-
-
- /* add sys path if needed */
- if (!startswith(syspath, "/sys")) {
- snprintf(path, sizeof(path), "/sys/%s", 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_hwdb(udev, "usb:v0D50p0011*");
-
- test_monitor(udev);
-out:
- udev_unref(udev);
- return 0;
-}
~ianmdlvl / elogind.git / blobdiff