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.
33 #include "udev_libc_wrapper.h"
35 #include "udev_utils.h"
36 #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[PATH_SIZE];
73 char partitionname[PATH_SIZE];
74 struct name_entry *name_loop;
80 list_for_each_entry(name_loop, &udev->symlink_list, node) {
81 snprintf(filename, sizeof(filename), "%s/%s", udev_root, name_loop->name);
82 filename[sizeof(filename)-1] = '\0';
84 if (stat(filename, &stats) != 0) {
85 dbg("symlink '%s' not found", filename);
88 if (udev->devt && stats.st_rdev != udev->devt) {
89 info("symlink '%s' points to a different device, skip removal", filename);
93 dbg("removing symlink '%s'", filename);
96 if (strchr(filename, '/'))
97 delete_path(filename);
100 snprintf(filename, sizeof(filename), "%s/%s", udev_root, udev->name);
101 filename[sizeof(filename)-1] = '\0';
103 if (stat(filename, &stats) != 0) {
104 dbg("device node '%s' not found", filename);
107 if (udev->devt && stats.st_rdev != udev->devt) {
108 info("device node '%s' points to a different device, skip removal", filename);
112 info("removing device node '%s'", filename);
113 retval = unlink_secure(filename);
117 num = udev->partitions;
119 info("removing all_partitions '%s[1-%i]'", filename, num);
121 info("garbage from udev database, skip all_partitions removal");
124 for (i = 1; i <= num; i++) {
125 snprintf(partitionname, sizeof(partitionname), "%s%d", filename, i);
126 partitionname[sizeof(partitionname)-1] = '\0';
127 unlink_secure(partitionname);
131 if (strchr(udev->name, '/'))
132 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 != DEV_BLOCK && udev->type != DEV_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 strlcpy(udev->name, &temp[1], sizeof(udev->name));
161 info("'%s' not found in database, falling back on default name", udev->name);
164 /* use full path to the environment */
165 snprintf(udev->devname, sizeof(udev->devname), "%s/%s", udev_root, udev->name);
166 udev->devname[sizeof(udev->devname)-1] = '\0';
168 return delete_node(udev);