| /* |
| * 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/select.h> |
| |
| #include "libudev.h" |
| |
| 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; |
| fd_set readfds; |
| int fd; |
| |
| udev_monitor = udev_monitor_new_from_netlink(udev, "udev"); |
| if (udev_monitor == NULL) { |
| printf("no socket\n"); |
| return -1; |
| } |
| 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"); |
| return -1; |
| } |
| if (udev_monitor_enable_receiving(udev_monitor) < 0) { |
| printf("bind failed\n"); |
| return -1; |
| } |
| |
| fd = udev_monitor_get_fd(udev_monitor); |
| FD_ZERO(&readfds); |
| |
| for (;;) { |
| struct udev_device *device; |
| int fdcount; |
| |
| FD_SET(STDIN_FILENO, &readfds); |
| FD_SET(fd, &readfds); |
| |
| printf("waiting for events from udev, press ENTER to exit\n"); |
| fdcount = select(fd+1, &readfds, NULL, NULL, NULL); |
| printf("select fd count: %i\n", fdcount); |
| |
| if (FD_ISSET(fd, &readfds)) { |
| device = udev_monitor_receive_device(udev_monitor); |
| if (device == NULL) { |
| printf("no device from socket\n"); |
| continue; |
| } |
| print_device(device); |
| udev_device_unref(device); |
| } |
| |
| if (FD_ISSET(STDIN_FILENO, &readfds)) { |
| printf("exiting loop\n"); |
| break; |
| } |
| } |
| |
| 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"); |
| printf("get failed list\n"); |
| udev_list_entry_foreach(list_entry, udev_queue_get_failed_list_entry(udev_queue)) |
| printf("failed: '%s'\n", udev_list_entry_get_name(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, "+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; |
| } |