X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevtest.c;h=d5e90b02c650c05beab2499eedb90fc6853f9263;hp=37ec767e138ad189073255fa209065082e213c75;hb=661a0bea80d129d5df708e36dbaed745c9d8392e;hpb=9af5bb2f8fdbf54c064ddbd319d61092f28a4132 diff --git a/udevtest.c b/udevtest.c index 37ec767e1..d5e90b02c 100644 --- a/udevtest.c +++ b/udevtest.c @@ -1,9 +1,6 @@ /* - * udev.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 @@ -16,103 +13,195 @@ * * 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_utils.h" -#include "udev_version.h" -#include "namedev.h" -#include "logging.h" +#include "udev_rules.h" - -#ifdef LOG -unsigned char logname[LOGNAME_SIZE]; -void log_message (int level, const char *format, ...) +static int import_uevent_var(const char *devpath) { - va_list args; - - 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'\n", 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[SYSFS_PATH_MAX]; - char temp[NAME_SIZE]; - char *subsystem = ""; - struct udevice udev; - - info("version %s", UDEV_VERSION); - - if (argv[1] == NULL) { - info("udevinfo expects the DEVPATH of the sysfs device as a argument"); - return 1; + 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\n", UDEV_VERSION); + udev_config_init(); + if (udev_log_priority < LOG_INFO) { + char priority[32]; + + udev_log_priority = LOG_INFO; + sprintf(priority, "%i", udev_log_priority); + setenv("UDEV_LOG", priority, 1); } - /* 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 */ - strfieldcpy(temp, "/"); - strfieldcat(temp, argv[1]); - devpath = temp; - } else { - devpath = argv[1]; + while (1) { + int option; + + option = getopt_long(argc, argv, "a:s:fh", options, NULL); + if (option == -1) + break; + + dbg("option '%c'\n", 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]; - info("looking at '%s'", devpath); - - /* we only care about class devices and block stuff */ - if (!strstr(devpath, "class") && !strstr(devpath, "block")) { - dbg("not a block or class device"); - return 2; + if (devpath == NULL) { + fprintf(stderr, "devpath parameter missing\n"); + rc = 1; + goto exit; } - /* initialize our configuration */ - udev_init_config(); + 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"); - /* initialize the naming deamon */ - namedev_init(); + sysfs_init(); + udev_rules_init(&rules, 0); - if (argv[2] != NULL) - subsystem = argv[2]; + /* remove /sys if given */ + if (strncmp(devpath, sysfs_path, strlen(sysfs_path)) == 0) + devpath = &devpath[strlen(sysfs_path)]; - /* fill in values and test_run flag*/ - udev_set_values(&udev, devpath, subsystem, "add"); + dev = sysfs_device_get(devpath); + if (dev == NULL) { + fprintf(stderr, "unable to open device '%s'\n", devpath); + rc = 2; + goto exit; + } - /* open the device */ - snprintf(path, SYSFS_PATH_MAX, "%s%s", sysfs_path, udev.devpath); - class_dev = sysfs_open_class_device_path(path); - if (class_dev == NULL) { - info("sysfs_open_class_device_path failed"); - return 1; + udev = udev_device_init(NULL); + if (udev == NULL) { + fprintf(stderr, "error initializing device\n"); + rc = 3; + goto exit; } - dbg("opened class_dev->name='%s'", class_dev->name); + 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); /* simulate node creation with test flag */ - udev.test_run = 1; - udev_add_device(&udev, class_dev); + 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'\n", udev->dev->devpath, udev->dev->subsystem); + retval = udev_device_event(&rules, udev); + + if (udev->event_timeout >= 0) + info("custom event timeout: %i\n", udev->event_timeout); - sysfs_close_class_device(class_dev); + 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'\n", program); + } + } + udev_device_cleanup(udev); - return 0; +exit: + udev_rules_cleanup(&rules); + sysfs_cleanup(); + return rc; }