diff options
Diffstat (limited to 'udev_event.c')
| -rw-r--r-- | udev_event.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/udev_event.c b/udev_event.c deleted file mode 100644 index 887537e0e9..0000000000 --- a/udev_event.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * udev_event.c - udev event process - * - * Copyright (C) 2004, 2005 Kay Sievers <kay.sievers@vrfy.org> - * - * 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 version 2 of the License. - * - * 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, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - - -#include <stdlib.h> -#include <stdio.h> -#include <stddef.h> -#include <unistd.h> -#include <fcntl.h> -#include <errno.h> -#include <ctype.h> -#include <dirent.h> -#include <syslog.h> -#include <sys/stat.h> - -#include "libsysfs/sysfs/libsysfs.h" -#include "udev_libc_wrapper.h" -#include "udev.h" -#include "logging.h" -#include "udev_rules.h" -#include "udev_utils.h" -#include "list.h" - - -dev_t get_devt(struct sysfs_class_device *class_dev) -{ - struct sysfs_attribute *attr = NULL; - unsigned int major, minor; - char *maj, *min; - - maj = getenv("MAJOR"); - min = getenv("MINOR"); - - if (maj && min) { - major = atoi(maj); - minor = atoi(min); - } else { - attr = sysfs_get_classdev_attr(class_dev, "dev"); - if (attr == NULL) - return 0; - dbg("dev='%s'", attr->value); - - if (sscanf(attr->value, "%u:%u", &major, &minor) != 2) - return 0; - } - - dbg("found major=%d, minor=%d", major, minor); - return makedev(major, minor); -} - -int udev_process_event(struct udev_rules *rules, struct udevice *udev) -{ - int retval; - char path[PATH_SIZE]; - - if (udev->type == DEV_BLOCK || udev->type == DEV_CLASS || udev->type == DEV_NET) { - /* handle device node */ - if (strcmp(udev->action, "add") == 0) { - struct sysfs_class_device *class_dev; - - dbg("node add"); - 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) { - dbg("open class device failed"); - return 0; - } - dbg("opened class_dev->name='%s'", class_dev->name); - - /* get major/minor */ - if (udev->type == DEV_BLOCK || udev->type == DEV_CLASS) - udev->devt = get_devt(class_dev); - - if (udev->type == DEV_NET || udev->devt) { - /* name device */ - udev_rules_get_name(rules, udev, class_dev); - if (udev->ignore_device) { - info("device event will be ignored"); - sysfs_close_class_device(class_dev); - return 0; - } - if (udev->name[0] != '\0') { - /* create node, store in db */ - retval = udev_add_device(udev, class_dev); - } else { - info("device node creation supressed"); - } - } else { - dbg("no dev-file found"); - udev_rules_get_run(rules, udev, class_dev, NULL); - if (udev->ignore_device) { - info("device event will be ignored"); - sysfs_close_class_device(class_dev); - return 0; - } - } - sysfs_close_class_device(class_dev); - } else if (strcmp(udev->action, "remove") == 0) { - struct name_entry *name_loop; - - /* get data from db, remove db-entry, delete node */ - dbg("node remove"); - retval = udev_remove_device(udev); - - /* restore stored persistent data */ - list_for_each_entry(name_loop, &udev->env_list, node) - putenv(name_loop->name); - - udev_rules_get_run(rules, udev, NULL, NULL); - if (udev->ignore_device) { - dbg("device event will be ignored"); - return 0; - } - } - } else if (udev->type == DEV_DEVICE && strcmp(udev->action, "add") == 0) { - struct sysfs_device *devices_dev; - - dbg("devices add"); - snprintf(path, sizeof(path), "%s%s", sysfs_path, udev->devpath); - path[sizeof(path)-1] = '\0'; - devices_dev = sysfs_open_device_path(path); - if (!devices_dev) { - dbg("devices device unavailable (probably remove has beaten us)"); - return 0; - } - - dbg("devices device opened '%s'", path); - udev_rules_get_run(rules, udev, NULL, devices_dev); - sysfs_close_device(devices_dev); - if (udev->ignore_device) { - info("device event will be ignored"); - return 0; - } - } else { - dbg("default handling"); - udev_rules_get_run(rules, udev, NULL, NULL); - if (udev->ignore_device) { - info("device event will be ignored"); - return 0; - } - } - return 0; -} |