X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevtest.c;h=a36e503fd41112b339127022e04930f9943d181a;hp=f0c38b3a51b5fd7481e0782bb42a283f304978d7;hb=225cb03bd851adc6d269b13bdf2b1bfded2b96b9;hpb=6b493a20e1dbf90a4e54d3be37027fa906220c31 diff --git a/udevtest.c b/udevtest.c index f0c38b3a5..a36e503fd 100644 --- a/udevtest.c +++ b/udevtest.c @@ -1,9 +1,6 @@ /* - * udevtest.c - * - * Userspace devfs - * - * Copyright (C) 2003,2004 Greg Kroah-Hartman + * Copyright (C) 2003-2004 Greg Kroah-Hartman + * Copyright (C) 2004-2006 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 @@ -16,109 +13,191 @@ * * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ #include #include #include +#include +#include #include #include +#include #include #include +#include -#include "libsysfs/sysfs/libsysfs.h" #include "udev.h" -#include "udev_sysfs.h" -#include "udev_utils.h" -#include "udev_version.h" #include "udev_rules.h" -#include "logging.h" - -#ifdef USE_LOG -void log_message (int priority, const char *format, ...) +static int import_uevent_var(const char *devpath) { - va_list args; - - if (priority > udev_log_priority) - return; - - va_start(args, format); - vprintf(format, args); - va_end(args); - if (format[strlen(format)-1] != '\n') - printf("\n"); + char path[PATH_SIZE]; + static char value[4096]; /* must stay, used with putenv */ + ssize_t size; + int fd; + char *key; + char *next; + int rc = -1; + + /* read uevent file */ + strlcpy(path, sysfs_path, sizeof(path)); + strlcat(path, devpath, sizeof(path)); + strlcat(path, "/uevent", sizeof(path)); + fd = open(path, O_RDONLY); + if (fd < 0) + goto out; + size = read(fd, value, sizeof(value)); + close(fd); + if (size < 0) + goto out; + value[size] = '\0'; + + /* import keys into environment */ + key = value; + while (key[0] != '\0') { + next = strchr(key, '\n'); + if (next == NULL) + goto out; + next[0] = '\0'; + info("import into environment: '%s'", key); + putenv(key); + key = &next[1]; + } + rc = 0; +out: + return rc; } -#endif -int main(int argc, char *argv[], char *envp[]) +int udevtest(int argc, char *argv[], char *envp[]) { - struct sysfs_class_device *class_dev; - char *devpath; - char path[PATH_SIZE]; - char temp[PATH_SIZE]; - struct udevice udev; - char *subsystem = NULL; + int force = 0; + const char *action = "add"; + const char *subsystem = NULL; + const char *devpath = NULL; + struct udevice *udev; + struct sysfs_device *dev; + struct udev_rules rules = {}; + int retval; + int rc = 0; + + static const struct option options[] = { + { "action", 1, NULL, 'a' }, + { "subsystem", 1, NULL, 's' }, + { "force", 0, NULL, 'f' }, + { "help", 0, NULL, 'h' }, + {} + }; info("version %s", UDEV_VERSION); + udev_config_init(); + if (udev_log_priority < LOG_INFO) { + char priority[32]; - if (argc != 3) { - info("Usage: udevtest "); - return 1; + udev_log_priority = LOG_INFO; + sprintf(priority, "%i", udev_log_priority); + setenv("UDEV_LOG", priority, 1); } - /* initialize our configuration */ - udev_init_config(); - if (udev_log_priority < LOG_INFO) - udev_log_priority = LOG_INFO; + while (1) { + int option; + + option = getopt_long(argc, argv, "a:s:fh", options, NULL); + if (option == -1) + break; + + dbg("option '%c'", option); + switch (option) { + case 'a': + action = optarg; + break; + case 's': + subsystem = optarg; + break; + case 'f': + force = 1; + break; + case 'h': + printf("Usage: udevadm test OPTIONS \n" + " --action= set action string\n" + " --subsystem= set subsystem string\n" + " --force don't skip node/link creation\n" + " --help print this help text\n\n"); + exit(0); + default: + exit(1); + } + } + devpath = argv[optind]; - /* remove sysfs_path if given */ - if (strncmp(argv[1], sysfs_path, strlen(sysfs_path)) == 0) - devpath = &argv[1][strlen(sysfs_path)] ; - else - if (argv[1][0] != '/') { - /* prepend '/' if missing */ - snprintf(temp, sizeof(temp), "/%s", argv[1]); - temp[sizeof(temp)-1] = '\0'; - devpath = temp; - } else - devpath = argv[1]; - - info("looking at '%s'", devpath); - - /* initialize the naming deamon */ - udev_rules_init(); - - if (argc == 3) - subsystem = argv[2]; - - /* fill in values and test_run flag*/ - udev_init_device(&udev, devpath, subsystem); - - /* skip subsystems without "dev", but handle net devices */ - if (udev.type != DEV_NET && subsystem_expect_no_dev(udev.subsystem)) { - info("don't care about '%s' devices", udev.subsystem); - return 2; + if (devpath == NULL) { + fprintf(stderr, "devpath parameter missing\n"); + rc = 1; + goto exit; } - /* open the device */ - snprintf(path, sizeof(path), "%s%s", sysfs_path, udev.devpath); - path[sizeof(path)-1] = '\0'; - class_dev = sysfs_open_class_device_path(path); - if (class_dev == NULL) { - info("sysfs_open_class_device_path failed"); - return 1; + printf("This program is for debugging only, it does not run any program,\n" + "specified by a RUN key. It may show incorrect results, because\n" + "some values may be different, or not available at a simulation run.\n" + "\n"); + + sysfs_init(); + udev_rules_init(&rules, 0); + + /* remove /sys if given */ + if (strncmp(devpath, sysfs_path, strlen(sysfs_path)) == 0) + devpath = &devpath[strlen(sysfs_path)]; + + dev = sysfs_device_get(devpath); + if (dev == NULL) { + fprintf(stderr, "unable to open device '%s'\n", devpath); + rc = 2; + goto exit; } - info("opened class_dev->name='%s'", class_dev->name); + udev = udev_device_init(NULL); + if (udev == NULL) { + fprintf(stderr, "error initializing device\n"); + rc = 3; + goto exit; + } - /* simulate node creation with test flag */ - udev.test_run = 1; - udev_add_device(&udev, class_dev); + if (subsystem != NULL) + strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem)); + + /* override built-in sysfs device */ + udev->dev = dev; + strlcpy(udev->action, action, sizeof(udev->action)); + udev->devt = udev_device_get_devt(udev); - sysfs_close_class_device(class_dev); + /* simulate node creation with test flag */ + if (!force) + udev->test_run = 1; + + setenv("DEVPATH", udev->dev->devpath, 1); + setenv("SUBSYSTEM", udev->dev->subsystem, 1); + setenv("ACTION", udev->action, 1); + import_uevent_var(udev->dev->devpath); + + info("looking at device '%s' from subsystem '%s'", udev->dev->devpath, udev->dev->subsystem); + retval = udev_device_event(&rules, udev); + if (retval == 0 && !udev->ignore_device && udev_run) { + struct name_entry *name_loop; + + list_for_each_entry(name_loop, &udev->run_list, node) { + char program[PATH_SIZE]; + + strlcpy(program, name_loop->name, sizeof(program)); + udev_rules_apply_format(udev, program, sizeof(program)); + info("run: '%s'", program); + } + } + udev_device_cleanup(udev); - return 0; +exit: + udev_rules_cleanup(&rules); + sysfs_cleanup(); + return rc; }