6 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation version 2 of the License.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 675 Mass Ave, Cambridge, MA 02139, USA.
34 #include "udev_utils.h"
35 #include "udev_version.h"
40 static int delete_path(const char *path)
45 pos = strrchr(path, '/');
48 pos = strrchr(path, '/');
50 /* don't remove the last one */
51 if ((pos == path) || (pos == NULL))
59 if (errno == ENOTEMPTY)
61 dbg("rmdir(%s) failed with error '%s'",
62 path, strerror(errno));
65 dbg("removed '%s'", path);
70 static int delete_node(struct udevice *udev)
72 char filename[NAME_SIZE];
73 char partitionname[NAME_SIZE];
74 struct name_entry *name_loop;
80 snprintf(filename, NAME_SIZE, "%s/%s", udev_root, udev->name);
81 filename[NAME_SIZE-1] = '\0';
83 dbg("checking major/minor of device node '%s'", filename);
84 if (stat(filename, &stats) != 0)
87 if (udev->devt && stats.st_rdev != udev->devt) {
88 info("device node '%s' points to a different device, skip removal", filename);
92 info("removing device node '%s'", filename);
93 retval = unlink_secure(filename);
97 /* remove all_partitions nodes */
98 num = udev->partitions;
100 info("removing all_partitions '%s[1-%i]'", filename, num);
102 info("garbage from udev database, skip all_partitions removal");
105 for (i = 1; i <= num; i++) {
106 strfieldcpy(partitionname, filename);
107 strintcat(partitionname, i);
108 unlink_secure(partitionname);
112 /* remove subdirectories */
113 if (strchr(udev->name, '/'))
114 delete_path(filename);
116 list_for_each_entry(name_loop, &udev->symlink_list, node) {
117 snprintf(filename, NAME_SIZE, "%s/%s", udev_root, name_loop->name);
118 filename[NAME_SIZE-1] = '\0';
120 dbg("unlinking symlink '%s'", filename);
121 retval = unlink(filename);
125 dbg("unlink(%s) failed with error '%s'",
126 filename, strerror(errno));
129 if (strchr(filename, '/')) {
130 delete_path(filename);
138 * look up the sysfs path in the database to get the node name to remove
139 * If we can't find it, use kernel name for lack of anything else to know to do
141 int udev_remove_device(struct udevice *udev)
145 if (udev->type != BLOCK && udev->type != CLASS)
148 if (udev_db_get_device(udev, udev->devpath) == 0) {
149 if (udev->ignore_remove) {
150 dbg("remove event for '%s' requested to be ignored by rule", udev->name);
153 dbg("remove name='%s'", udev->name);
154 udev_db_delete_device(udev);
156 /* fall back to kernel name */
157 temp = strrchr(udev->devpath, '/');
160 strfieldcpy(udev->name, &temp[1]);
161 dbg("'%s' not found in database, falling back on default name", udev->name);
164 /* use full path to the environment */
165 snprintf(udev->devname, NAME_SIZE, "%s/%s", udev_root, udev->name);
167 return delete_node(udev);