/*
- * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2004-2008 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * 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, either version 2 of the License, or
+ * (at your option) any later version.
*
+ * 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include "udev.h"
#include "udev_rules.h"
-#include "udev_selinux.h"
#define TMP_FILE_EXT ".udev-tmp"
-int udev_node_mknod(struct udevice *udev, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid)
+int udev_node_mknod(struct udevice *udevice, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid)
{
- char file_tmp[PATH_SIZE + sizeof(TMP_FILE_EXT)];
+ char file_tmp[UTIL_PATH_SIZE + sizeof(TMP_FILE_EXT)];
struct stat stats;
int preserve = 0;
int err = 0;
- if (major(devt) != 0 && strcmp(udev->dev->subsystem, "block") == 0)
+ if (major(devt) != 0 && strcmp(udevice->dev->subsystem, "block") == 0)
mode |= S_IFBLK;
else
mode |= S_IFCHR;
if (lstat(file, &stats) == 0) {
if (((stats.st_mode & S_IFMT) == (mode & S_IFMT)) && (stats.st_rdev == devt)) {
- info("preserve file '%s', because it has correct dev_t\n", file);
+ info(udevice->udev, "preserve file '%s', because it has correct dev_t\n", file);
preserve = 1;
- selinux_setfilecon(file, udev->dev->kernel, mode);
+ udev_selinux_lsetfilecon(udevice->udev, file, mode);
} else {
- info("atomically replace existing file '%s'\n", file);
- strlcpy(file_tmp, file, sizeof(file_tmp));
- strlcat(file_tmp, TMP_FILE_EXT, sizeof(file_tmp));
+ info(udevice->udev, "atomically replace existing file '%s'\n", file);
+ util_strlcpy(file_tmp, file, sizeof(file_tmp));
+ util_strlcat(file_tmp, TMP_FILE_EXT, sizeof(file_tmp));
unlink(file_tmp);
- selinux_setfscreatecon(file_tmp, udev->dev->kernel, mode);
+ udev_selinux_setfscreatecon(udevice->udev, file_tmp, mode);
err = mknod(file_tmp, mode, devt);
- selinux_resetfscreatecon();
+ udev_selinux_resetfscreatecon(udevice->udev);
if (err != 0) {
- err("mknod(%s, %#o, %u, %u) failed: %s\n",
- file_tmp, mode, major(devt), minor(devt), strerror(errno));
+ err(udevice->udev, "mknod(%s, %#o, %u, %u) failed: %m\n",
+ file_tmp, mode, major(devt), minor(devt));
goto exit;
}
err = rename(file_tmp, file);
if (err != 0) {
- err("rename(%s, %s) failed: %s\n",
- file_tmp, file, strerror(errno));
+ err(udevice->udev, "rename(%s, %s) failed: %m\n", file_tmp, file);
unlink(file_tmp);
}
}
} else {
- info("mknod(%s, %#o, (%u,%u))\n", file, mode, major(devt), minor(devt));
- selinux_setfscreatecon(file, udev->dev->kernel, mode);
+ info(udevice->udev, "mknod(%s, %#o, (%u,%u))\n", file, mode, major(devt), minor(devt));
+ udev_selinux_setfscreatecon(udevice->udev, file, mode);
err = mknod(file, mode, devt);
- selinux_resetfscreatecon();
+ udev_selinux_resetfscreatecon(udevice->udev);
if (err != 0) {
- err("mknod(%s, %#o, (%u,%u) failed: %s\n",
- file, mode, major(devt), minor(devt), strerror(errno));
+ err(udevice->udev, "mknod(%s, %#o, (%u,%u) failed: %m\n",
+ file, mode, major(devt), minor(devt));
goto exit;
}
}
if (!preserve || stats.st_mode != mode) {
- info("chmod(%s, %#o)\n", file, mode);
+ info(udevice->udev, "chmod(%s, %#o)\n", file, mode);
err = chmod(file, mode);
if (err != 0) {
- err("chmod(%s, %#o) failed: %s\n", file, mode, strerror(errno));
+ err(udevice->udev, "chmod(%s, %#o) failed: %m\n", file, mode);
goto exit;
}
}
if (!preserve || stats.st_uid != uid || stats.st_gid != gid) {
- info("chown(%s, %u, %u)\n", file, uid, gid);
+ info(udevice->udev, "chown(%s, %u, %u)\n", file, uid, gid);
err = chown(file, uid, gid);
if (err != 0) {
- err("chown(%s, %u, %u) failed: %s\n", file, uid, gid, strerror(errno));
+ err(udevice->udev, "chown(%s, %u, %u) failed: %m\n", file, uid, gid);
goto exit;
}
}
return err;
}
-static int node_symlink(const char *node, const char *slink)
+static int node_symlink(struct udevice *udevice, const char *node, const char *slink)
{
struct stat stats;
- char target[PATH_SIZE] = "";
- char slink_tmp[PATH_SIZE + sizeof(TMP_FILE_EXT)];
+ char target[UTIL_PATH_SIZE] = "";
+ char slink_tmp[UTIL_PATH_SIZE + sizeof(TMP_FILE_EXT)];
int i = 0;
int tail = 0;
int len;
}
while (slink[i] != '\0') {
if (slink[i] == '/')
- strlcat(target, "../", sizeof(target));
+ util_strlcat(target, "../", sizeof(target));
i++;
}
- strlcat(target, &node[tail], sizeof(target));
+ util_strlcat(target, &node[tail], sizeof(target));
/* preserve link with correct target, do not replace node of other device */
if (lstat(slink, &stats) == 0) {
if (S_ISBLK(stats.st_mode) || S_ISCHR(stats.st_mode)) {
struct stat stats2;
- info("found existing node instead of symlink '%s'\n", slink);
+ info(udevice->udev, "found existing node instead of symlink '%s'\n", slink);
if (lstat(node, &stats2) == 0) {
if ((stats.st_mode & S_IFMT) == (stats2.st_mode & S_IFMT) &&
stats.st_rdev == stats2.st_rdev) {
- info("replace device node '%s' with symlink to our node '%s'\n", slink, node);
+ info(udevice->udev, "replace device node '%s' with symlink to our node '%s'\n", slink, node);
} else {
- err("device node '%s' already exists, link to '%s' will not overwrite it\n", slink, node);
+ err(udevice->udev, "device node '%s' already exists, link to '%s' will not overwrite it\n", slink, node);
goto exit;
}
}
} else if (S_ISLNK(stats.st_mode)) {
- char buf[PATH_SIZE];
+ char buf[UTIL_PATH_SIZE];
- info("found existing symlink '%s'\n", slink);
+ info(udevice->udev, "found existing symlink '%s'\n", slink);
len = readlink(slink, buf, sizeof(buf));
if (len > 0) {
buf[len] = '\0';
if (strcmp(target, buf) == 0) {
- info("preserve already existing symlink '%s' to '%s'\n", slink, target);
- selinux_setfilecon(slink, NULL, S_IFLNK);
+ info(udevice->udev, "preserve already existing symlink '%s' to '%s'\n", slink, target);
+ udev_selinux_lsetfilecon(udevice->udev, slink, S_IFLNK);
goto exit;
}
}
}
} else {
- info("creating symlink '%s' to '%s'\n", slink, target);
- selinux_setfscreatecon(slink, NULL, S_IFLNK);
+ info(udevice->udev, "creating symlink '%s' to '%s'\n", slink, target);
+ udev_selinux_setfscreatecon(udevice->udev, slink, S_IFLNK);
retval = symlink(target, slink);
- selinux_resetfscreatecon();
+ udev_selinux_resetfscreatecon(udevice->udev);
if (retval == 0)
goto exit;
}
- info("atomically replace '%s'\n", slink);
- strlcpy(slink_tmp, slink, sizeof(slink_tmp));
- strlcat(slink_tmp, TMP_FILE_EXT, sizeof(slink_tmp));
+ info(udevice->udev, "atomically replace '%s'\n", slink);
+ util_strlcpy(slink_tmp, slink, sizeof(slink_tmp));
+ util_strlcat(slink_tmp, TMP_FILE_EXT, sizeof(slink_tmp));
unlink(slink_tmp);
- selinux_setfscreatecon(slink, NULL, S_IFLNK);
+ udev_selinux_setfscreatecon(udevice->udev, slink, S_IFLNK);
retval = symlink(target, slink_tmp);
- selinux_resetfscreatecon();
+ udev_selinux_resetfscreatecon(udevice->udev);
if (retval != 0) {
- err("symlink(%s, %s) failed: %s\n", target, slink_tmp, strerror(errno));
+ err(udevice->udev, "symlink(%s, %s) failed: %m\n", target, slink_tmp);
goto exit;
}
retval = rename(slink_tmp, slink);
if (retval != 0) {
- err("rename(%s, %s) failed: %s\n", slink_tmp, slink, strerror(errno));
+ err(udevice->udev, "rename(%s, %s) failed: %m\n", slink_tmp, slink);
unlink(slink_tmp);
goto exit;
}
return retval;
}
-static int update_link(struct udevice *udev, const char *name)
+static int update_link(struct udevice *udevice, const char *name)
{
LIST_HEAD(name_list);
- char slink[PATH_SIZE];
- char node[PATH_SIZE];
- struct udevice *udev_db;
+ char slink[UTIL_PATH_SIZE];
+ char node[UTIL_PATH_SIZE];
+ struct udevice *udevice_db;
struct name_entry *device;
- char target[PATH_MAX] = "";
+ char target[UTIL_PATH_SIZE] = "";
int count;
int priority = 0;
int rc = 0;
- strlcpy(slink, udev_root, sizeof(slink));
- strlcat(slink, "/", sizeof(slink));
- strlcat(slink, name, sizeof(slink));
+ util_strlcpy(slink, udev_get_dev_path(udevice->udev), sizeof(slink));
+ util_strlcat(slink, "/", sizeof(slink));
+ util_strlcat(slink, name, sizeof(slink));
- count = udev_db_get_devices_by_name(name, &name_list);
- info("found %i devices with name '%s'\n", count, name);
+ count = udev_db_get_devices_by_name(udevice->udev, name, &name_list);
+ info(udevice->udev, "found %i devices with name '%s'\n", count, name);
/* if we don't have a reference, delete it */
if (count <= 0) {
- info("no reference left, remove '%s'\n", name);
- if (!udev->test_run) {
+ info(udevice->udev, "no reference left, remove '%s'\n", name);
+ if (!udevice->test_run) {
unlink(slink);
- delete_path(slink);
+ delete_path(udevice->udev, slink);
}
goto out;
}
/* find the device with the highest priority */
list_for_each_entry(device, &name_list, node) {
- info("found '%s' for '%s'\n", device->name, name);
+ info(udevice->udev, "found '%s' for '%s'\n", device->name, name);
/* did we find ourself? we win, if we have the same priority */
- if (strcmp(udev->dev->devpath, device->name) == 0) {
- info("compare (our own) priority of '%s' %i >= %i\n",
- udev->dev->devpath, udev->link_priority, priority);
- if (strcmp(udev->name, name) == 0) {
- info("'%s' is our device node, database inconsistent, skip link update\n", udev->name);
- } else if (target[0] == '\0' || udev->link_priority >= priority) {
- priority = udev->link_priority;
- strlcpy(target, udev->name, sizeof(target));
+ if (strcmp(udevice->dev->devpath, device->name) == 0) {
+ info(udevice->udev, "compare (our own) priority of '%s' %i >= %i\n",
+ udevice->dev->devpath, udevice->link_priority, priority);
+ if (strcmp(udevice->name, name) == 0) {
+ info(udevice->udev, "'%s' is our device node, database inconsistent, skip link update\n", udevice->name);
+ } else if (target[0] == '\0' || udevice->link_priority >= priority) {
+ priority = udevice->link_priority;
+ util_strlcpy(target, udevice->name, sizeof(target));
}
continue;
}
/* another device, read priority from database */
- udev_db = udev_device_init();
- if (udev_db == NULL)
+ udevice_db = udev_device_init(udevice->udev);
+ if (udevice_db == NULL)
continue;
- if (udev_db_get_device(udev_db, device->name) == 0) {
- if (strcmp(udev_db->name, name) == 0) {
- info("'%s' is a device node of '%s', skip link update\n", udev_db->name, device->name);
+ if (udev_db_get_device(udevice_db, device->name) == 0) {
+ if (strcmp(udevice_db->name, name) == 0) {
+ info(udevice->udev, "'%s' is a device node of '%s', skip link update\n", udevice_db->name, device->name);
} else {
- info("compare priority of '%s' %i > %i\n",
- udev_db->dev->devpath, udev_db->link_priority, priority);
- if (target[0] == '\0' || udev_db->link_priority > priority) {
- priority = udev_db->link_priority;
- strlcpy(target, udev_db->name, sizeof(target));
+ info(udevice->udev, "compare priority of '%s' %i > %i\n",
+ udevice_db->dev->devpath, udevice_db->link_priority, priority);
+ if (target[0] == '\0' || udevice_db->link_priority > priority) {
+ priority = udevice_db->link_priority;
+ util_strlcpy(target, udevice_db->name, sizeof(target));
}
}
}
- udev_device_cleanup(udev_db);
+ udev_device_cleanup(udevice_db);
}
- name_list_cleanup(&name_list);
+ name_list_cleanup(udevice->udev, &name_list);
if (target[0] == '\0') {
- info("no current target for '%s' found\n", name);
+ info(udevice->udev, "no current target for '%s' found\n", name);
rc = 1;
goto out;
}
/* create symlink to the target with the highest priority */
- strlcpy(node, udev_root, sizeof(node));
- strlcat(node, "/", sizeof(node));
- strlcat(node, target, sizeof(node));
- info("'%s' with target '%s' has the highest priority %i, create it\n", name, target, priority);
- if (!udev->test_run) {
- create_path(slink);
- node_symlink(node, slink);
+ util_strlcpy(node, udev_get_dev_path(udevice->udev), sizeof(node));
+ util_strlcat(node, "/", sizeof(node));
+ util_strlcat(node, target, sizeof(node));
+ info(udevice->udev, "'%s' with target '%s' has the highest priority %i, create it\n", name, target, priority);
+ if (!udevice->test_run) {
+ create_path(udevice->udev, slink);
+ node_symlink(udevice, node, slink);
}
out:
return rc;
}
-void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old)
+void udev_node_update_symlinks(struct udevice *udevice, struct udevice *udevice_old)
{
struct name_entry *name_loop;
- char symlinks[PATH_SIZE] = "";
-
- list_for_each_entry(name_loop, &udev->symlink_list, node) {
- info("update symlink '%s' of '%s'\n", name_loop->name, udev->dev->devpath);
- update_link(udev, name_loop->name);
- strlcat(symlinks, udev_root, sizeof(symlinks));
- strlcat(symlinks, "/", sizeof(symlinks));
- strlcat(symlinks, name_loop->name, sizeof(symlinks));
- strlcat(symlinks, " ", sizeof(symlinks));
+ char symlinks[UTIL_PATH_SIZE] = "";
+
+ list_for_each_entry(name_loop, &udevice->symlink_list, node) {
+ info(udevice->udev, "update symlink '%s' of '%s'\n", name_loop->name, udevice->dev->devpath);
+ update_link(udevice, name_loop->name);
+ util_strlcat(symlinks, udev_get_dev_path(udevice->udev), sizeof(symlinks));
+ util_strlcat(symlinks, "/", sizeof(symlinks));
+ util_strlcat(symlinks, name_loop->name, sizeof(symlinks));
+ util_strlcat(symlinks, " ", sizeof(symlinks));
}
/* export symlinks to environment */
- remove_trailing_chars(symlinks, ' ');
+ util_remove_trailing_chars(symlinks, ' ');
if (symlinks[0] != '\0')
setenv("DEVLINKS", symlinks, 1);
/* update possible left-over symlinks (device metadata changed) */
- if (udev_old != NULL) {
+ if (udevice_old != NULL) {
struct name_entry *link_loop;
struct name_entry *link_old_loop;
int found;
/* remove current symlinks from old list */
- list_for_each_entry(link_old_loop, &udev_old->symlink_list, node) {
+ list_for_each_entry(link_old_loop, &udevice_old->symlink_list, node) {
found = 0;
- list_for_each_entry(link_loop, &udev->symlink_list, node) {
+ list_for_each_entry(link_loop, &udevice->symlink_list, node) {
if (strcmp(link_old_loop->name, link_loop->name) == 0) {
found = 1;
break;
}
if (!found) {
/* link does no longer belong to this device */
- info("update old symlink '%s' no longer belonging to '%s'\n",
- link_old_loop->name, udev->dev->devpath);
- update_link(udev, link_old_loop->name);
+ info(udevice->udev, "update old symlink '%s' no longer belonging to '%s'\n",
+ link_old_loop->name, udevice->dev->devpath);
+ update_link(udevice, link_old_loop->name);
}
}
* if the node name has changed, delete the node,
* or possibly restore a symlink of another device
*/
- if (strcmp(udev->name, udev_old->name) != 0)
- update_link(udev, udev_old->name);
+ if (strcmp(udevice->name, udevice_old->name) != 0)
+ update_link(udevice, udevice_old->name);
}
}
-int udev_node_add(struct udevice *udev)
+int udev_node_add(struct udevice *udevice)
{
- char filename[PATH_SIZE];
+ char filename[UTIL_PATH_SIZE];
uid_t uid;
gid_t gid;
int i;
int retval = 0;
- strlcpy(filename, udev_root, sizeof(filename));
- strlcat(filename, "/", sizeof(filename));
- strlcat(filename, udev->name, sizeof(filename));
- create_path(filename);
+ util_strlcpy(filename, udev_get_dev_path(udevice->udev), sizeof(filename));
+ util_strlcat(filename, "/", sizeof(filename));
+ util_strlcat(filename, udevice->name, sizeof(filename));
+ create_path(udevice->udev, filename);
- if (strcmp(udev->owner, "root") == 0)
+ if (strcmp(udevice->owner, "root") == 0)
uid = 0;
else {
char *endptr;
unsigned long id;
- id = strtoul(udev->owner, &endptr, 10);
+ id = strtoul(udevice->owner, &endptr, 10);
if (endptr[0] == '\0')
uid = (uid_t) id;
else
- uid = lookup_user(udev->owner);
+ uid = lookup_user(udevice->udev, udevice->owner);
}
- if (strcmp(udev->group, "root") == 0)
+ if (strcmp(udevice->group, "root") == 0)
gid = 0;
else {
char *endptr;
unsigned long id;
- id = strtoul(udev->group, &endptr, 10);
+ id = strtoul(udevice->group, &endptr, 10);
if (endptr[0] == '\0')
gid = (gid_t) id;
else
- gid = lookup_group(udev->group);
+ gid = lookup_group(udevice->udev, udevice->group);
}
- info("creating device node '%s', major=%d, minor=%d, mode=%#o, uid=%d, gid=%d\n",
- filename, major(udev->devt), minor(udev->devt), udev->mode, uid, gid);
+ info(udevice->udev, "creating device node '%s', major=%d, minor=%d, mode=%#o, uid=%d, gid=%d\n",
+ filename, major(udevice->devt), minor(udevice->devt), udevice->mode, uid, gid);
- if (!udev->test_run)
- if (udev_node_mknod(udev, filename, udev->devt, udev->mode, uid, gid) != 0) {
+ if (!udevice->test_run)
+ if (udev_node_mknod(udevice, filename, udevice->devt, udevice->mode, uid, gid) != 0) {
retval = -1;
goto exit;
}
setenv("DEVNAME", filename, 1);
/* create all_partitions if requested */
- if (udev->partitions) {
- char partitionname[PATH_SIZE];
+ if (udevice->partitions) {
+ char partitionname[UTIL_PATH_SIZE];
char *attr;
int range;
/* take the maximum registered minor range */
- attr = sysfs_attr_get_value(udev->dev->devpath, "range");
+ attr = sysfs_attr_get_value(udevice->udev, udevice->dev->devpath, "range");
if (attr != NULL) {
range = atoi(attr);
if (range > 1)
- udev->partitions = range-1;
+ udevice->partitions = range-1;
}
- info("creating device partition nodes '%s[1-%i]'\n", filename, udev->partitions);
- if (!udev->test_run) {
- for (i = 1; i <= udev->partitions; i++) {
+ info(udevice->udev, "creating device partition nodes '%s[1-%i]'\n", filename, udevice->partitions);
+ if (!udevice->test_run) {
+ for (i = 1; i <= udevice->partitions; i++) {
dev_t part_devt;
snprintf(partitionname, sizeof(partitionname), "%s%d", filename, i);
partitionname[sizeof(partitionname)-1] = '\0';
- part_devt = makedev(major(udev->devt), minor(udev->devt) + i);
- udev_node_mknod(udev, partitionname, part_devt, udev->mode, uid, gid);
+ part_devt = makedev(major(udevice->devt), minor(udevice->devt) + i);
+ udev_node_mknod(udevice, partitionname, part_devt, udevice->mode, uid, gid);
}
}
}
return retval;
}
-int udev_node_remove(struct udevice *udev)
+int udev_node_remove(struct udevice *udevice)
{
- char filename[PATH_SIZE];
- char partitionname[PATH_SIZE];
+ char filename[UTIL_PATH_SIZE];
+ char partitionname[UTIL_PATH_SIZE];
struct stat stats;
int retval = 0;
int num;
- strlcpy(filename, udev_root, sizeof(filename));
- strlcat(filename, "/", sizeof(filename));
- strlcat(filename, udev->name, sizeof(filename));
+ util_strlcpy(filename, udev_get_dev_path(udevice->udev), sizeof(filename));
+ util_strlcat(filename, "/", sizeof(filename));
+ util_strlcat(filename, udevice->name, sizeof(filename));
if (stat(filename, &stats) != 0) {
- info("device node '%s' not found\n", filename);
+ info(udevice->udev, "device node '%s' not found\n", filename);
return 0;
}
- if (udev->devt && stats.st_rdev != udev->devt) {
- info("device node '%s' points to a different device, skip removal\n", filename);
+ if (udevice->devt && stats.st_rdev != udevice->devt) {
+ info(udevice->udev, "device node '%s' points to a different device, skip removal\n", filename);
return -1;
}
- info("removing device node '%s'\n", filename);
- if (!udev->test_run)
- retval = unlink_secure(filename);
+ info(udevice->udev, "removing device node '%s'\n", filename);
+ if (!udevice->test_run)
+ retval = unlink_secure(udevice->udev, filename);
if (retval)
return retval;
setenv("DEVNAME", filename, 1);
- num = udev->partitions;
+ num = udevice->partitions;
if (num > 0) {
int i;
- info("removing all_partitions '%s[1-%i]'\n", filename, num);
+ info(udevice->udev, "removing all_partitions '%s[1-%i]'\n", filename, num);
if (num > 255)
return -1;
for (i = 1; i <= num; i++) {
snprintf(partitionname, sizeof(partitionname), "%s%d", filename, i);
partitionname[sizeof(partitionname)-1] = '\0';
- if (!udev->test_run)
- unlink_secure(partitionname);
+ if (!udevice->test_run)
+ unlink_secure(udevice->udev, partitionname);
}
}
- delete_path(filename);
+ delete_path(udevice->udev, filename);
return retval;
}
~ianmdlvl / elogind.git / blobdiff