4 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
5 * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation version 2 of the License.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include "udev_libc_wrapper.h"
33 #include "udev_utils.h"
34 #include "udev_version.h"
37 static int delete_path(const char *path)
42 pos = strrchr(path, '/');
45 pos = strrchr(path, '/');
47 /* don't remove the last one */
48 if ((pos == path) || (pos == NULL))
56 if (errno == ENOTEMPTY)
58 err("rmdir(%s) failed: %s", path, strerror(errno));
61 dbg("removed '%s'", path);
66 static int delete_node(struct udevice *udev)
68 char filename[PATH_SIZE];
69 char partitionname[PATH_SIZE];
70 struct name_entry *name_loop;
76 list_for_each_entry(name_loop, &udev->symlink_list, node) {
77 snprintf(filename, sizeof(filename), "%s/%s", udev_root, name_loop->name);
78 filename[sizeof(filename)-1] = '\0';
80 if (stat(filename, &stats) != 0) {
81 dbg("symlink '%s' not found", filename);
84 if (udev->devt && stats.st_rdev != udev->devt) {
85 info("symlink '%s' points to a different device, skip removal", filename);
89 info("removing symlink '%s'", filename);
92 if (strchr(filename, '/'))
93 delete_path(filename);
96 snprintf(filename, sizeof(filename), "%s/%s", udev_root, udev->name);
97 filename[sizeof(filename)-1] = '\0';
99 if (stat(filename, &stats) != 0) {
100 dbg("device node '%s' not found", filename);
103 if (udev->devt && stats.st_rdev != udev->devt) {
104 info("device node '%s' points to a different device, skip removal", filename);
108 info("removing device node '%s'", filename);
109 retval = unlink_secure(filename);
113 /* export DEVNAME to the environment */
114 snprintf(udev->devname, sizeof(udev->devname), "%s/%s", udev_root, udev->name);
115 udev->devname[sizeof(udev->devname)-1] = '\0';
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)
143 if (udev->type != DEV_BLOCK && udev->type != DEV_CLASS)
146 if (udev_db_get_device(udev, udev->devpath) == 0) {
147 if (udev->ignore_remove) {
148 dbg("remove event for '%s' requested to be ignored by rule", udev->name);
151 dbg("remove name='%s'", udev->name);
152 udev_db_delete_device(udev);
154 dbg("'%s' not found in database, using kernel name '%s'", udev->devpath, udev->kernel_name);
155 strlcpy(udev->name, udev->kernel_name, sizeof(udev->name));
158 return delete_node(udev);