X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev%2Flib%2Ftest-libudev.c;h=be25d61121063aa231bb2be56410d860671e03b8;hp=e86c660e6488fd1219793b4b90890af756328375;hb=4277453fd2478769a274f4664d924642f0411009;hpb=33a5cc297680f20e791c792a45fe949f715f5f69 diff --git a/udev/lib/test-libudev.c b/udev/lib/test-libudev.c index e86c660e6..be25d6112 100644 --- a/udev/lib/test-libudev.c +++ b/udev/lib/test-libudev.c @@ -3,24 +3,23 @@ * * Copyright (C) 2008 Kay Sievers * - * 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, either version 2 of the License, or - * (at your option) any later version. - * - * 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, see . + * 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 "config.h" - #include #include +#include +#include +#include +#include +#include +#include +#include +#include + #include "libudev.h" static void log_fn(struct udev *udev, @@ -31,39 +30,368 @@ static void log_fn(struct udev *udev, vprintf(format, args); } -static int devlinks_cb(struct udev_device *udev_device, const char *value, void *data) +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) { - printf("link: %s\n", value); + 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 devices_enum_cb(struct udev *udev, - const char *devpath, const char *subsystem, const char *name, - void *data) +static int test_device_parents(struct udev *udev, const char *syspath) { - printf("device: %s (%s) %s\n", devpath, subsystem, name); + 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 properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data) +static int test_device_devnum(struct udev *udev) { - printf("property: %s=%s\n", key, value); + 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; } -int main(int argc, char *argv[], char *envp[]) +static int test_device_subsys_name(struct udev *udev) { - struct udev *udev; struct udev_device *device; - const char *str; - const char *devpath = "/devices/virtual/mem/null"; - const char *subsystem = NULL; - if (argv[1] != NULL) { - devpath = argv[1]; - if (argv[2] != NULL) - subsystem = argv[2]; + 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(udev_monitor, "block") < 0 || + udev_monitor_filter_add_match_subsystem(udev_monitor, "tty") < 0 || + udev_monitor_filter_add_match_subsystem(udev_monitor, "usb") < 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); + + while (1) { + 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 ? "" : 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 'block'\n"); + udev_enumerate = udev_enumerate_new(udev); + if (udev_enumerate == NULL) + return -1; + udev_enumerate_add_match_subsystem(udev_enumerate,"block"); + 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); @@ -74,34 +402,57 @@ int main(int argc, char *argv[], char *envp[]) udev_set_log_fn(udev, log_fn); printf("set log: %p\n", log_fn); + while (1) { + 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); + printf("sys_path: '%s'\n", str); str = udev_get_dev_path(udev); - printf("dev_path: %s\n", str); + printf("dev_path: '%s'\n", str); - printf("looking at device: %s\n", devpath); - device = udev_device_new_from_devpath(udev, devpath); - printf("device: %p\n", device); - if (device == NULL) { - printf("no device\n"); - return 1; + /* 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; } - str = udev_device_get_devpath(device); - printf("devpath: %s\n", str); - str = udev_device_get_subsystem(device); - printf("subsystem: %s\n", str); - str = udev_device_get_devname(device); - printf("devname: %s\n", str); - udev_device_get_devlinks(device, devlinks_cb, NULL); - udev_device_get_properties(device, properties_cb, NULL); - udev_device_unref(device); - if (subsystem == NULL) - printf("enumerating devices from all subsystems\n"); - else - printf("enumerating devices from subsystem: %s\n", subsystem); - udev_devices_enumerate(udev, subsystem, devices_enum_cb, NULL); + 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; }