#include <dirent.h>
#include <fcntl.h>
#include <ctype.h>
+#include <net/if.h>
#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <linux/sockios.h>
#include "libudev.h"
#include "libudev-private.h"
char *sysname;
const char *sysnum;
char *devnode;
+ mode_t devnode_mode;
char *subsystem;
char *devtype;
char *driver;
char *action;
char *devpath_old;
- char *sysname_old;
char *knodename;
char *id_filename;
char **envp;
char *monitor_buf;
size_t monitor_buf_len;
- struct udev_list_node devlinks_list;
- struct udev_list_node properties_list;
- struct udev_list_node sysattr_value_list;
- struct udev_list_node sysattr_list;
- struct udev_list_node tags_list;
+ struct udev_list devlinks_list;
+ struct udev_list properties_list;
+ struct udev_list sysattr_value_list;
+ struct udev_list sysattr_list;
+ struct udev_list tags_list;
unsigned long long int seqnum;
unsigned long long int usec_initialized;
- int event_timeout;
int timeout;
int devlink_priority;
int refcount;
bool uevent_loaded;
bool is_initialized;
bool sysattr_list_read;
+ bool db_persist;
};
+/**
+ * udev_device_get_devnum:
+ * @udev_device: udev device
+ *
+ * This is only valid if the device was received through a monitor. Devices read from
+ * sys do not have a sequence number.
+ *
+ * Returns: the kernel event sequence number, or 0 if there is no sequence number available.
+ **/
+UDEV_EXPORT unsigned long long int udev_device_get_seqnum(struct udev_device *udev_device)
+{
+ if (udev_device == NULL)
+ return 0;
+ return udev_device->seqnum;
+}
+
+static int udev_device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum)
+{
+ char num[32];
+
+ udev_device->seqnum = seqnum;
+ snprintf(num, sizeof(num), "%llu", seqnum);
+ udev_device_add_property(udev_device, "SEQNUM", num);
+ return 0;
+}
+
+int udev_device_get_ifindex(struct udev_device *udev_device)
+{
+ if (!udev_device->info_loaded)
+ udev_device_read_uevent_file(udev_device);
+ return udev_device->ifindex;
+}
+
+static int udev_device_set_ifindex(struct udev_device *udev_device, int ifindex)
+{
+ char num[32];
+
+ udev_device->ifindex = ifindex;
+ snprintf(num, sizeof(num), "%u", ifindex);
+ udev_device_add_property(udev_device, "IFINDEX", num);
+ return 0;
+}
+
+/**
+ * udev_device_get_devnum:
+ * @udev_device: udev device
+ *
+ * Returns: the device major/minor number.
+ **/
+UDEV_EXPORT dev_t udev_device_get_devnum(struct udev_device *udev_device)
+{
+ if (udev_device == NULL)
+ return makedev(0, 0);
+ if (!udev_device->info_loaded)
+ udev_device_read_uevent_file(udev_device);
+ return udev_device->devnum;
+}
+
+static int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum)
+{
+ char num[32];
+
+ udev_device->devnum = devnum;
+
+ snprintf(num, sizeof(num), "%u", major(devnum));
+ udev_device_add_property(udev_device, "MAJOR", num);
+ snprintf(num, sizeof(num), "%u", minor(devnum));
+ udev_device_add_property(udev_device, "MINOR", num);
+ return 0;
+}
+
+int udev_device_get_timeout(struct udev_device *udev_device)
+{
+ return udev_device->timeout;
+}
+
+static int udev_device_set_timeout(struct udev_device *udev_device, int timeout)
+{
+ char num[32];
+
+ udev_device->timeout = timeout;
+ snprintf(num, sizeof(num), "%u", timeout);
+ udev_device_add_property(udev_device, "TIMEOUT", num);
+ return 0;
+}
+
+const char *udev_device_get_knodename(struct udev_device *udev_device)
+{
+ return udev_device->knodename;
+}
+
+static int udev_device_set_knodename(struct udev_device *udev_device, const char *knodename)
+{
+ free(udev_device->knodename);
+ udev_device->knodename = strdup(knodename);
+ if (udev_device->knodename == NULL)
+ return -ENOMEM;
+ /* do not overwrite the udev property with the kernel property */
+ if (udev_device->devnode == NULL)
+ udev_device_add_property(udev_device, "DEVNAME", udev_device->knodename);
+ return 0;
+}
+
+const char *udev_device_get_devpath_old(struct udev_device *udev_device)
+{
+ return udev_device->devpath_old;
+}
+
+static int udev_device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old)
+{
+ const char *pos;
+
+ free(udev_device->devpath_old);
+ udev_device->devpath_old = strdup(devpath_old);
+ if (udev_device->devpath_old == NULL)
+ return -ENOMEM;
+ udev_device_add_property(udev_device, "DEVPATH_OLD", udev_device->devpath_old);
+
+ pos = strrchr(udev_device->devpath_old, '/');
+ if (pos == NULL)
+ return -EINVAL;
+ return 0;
+}
+
+/**
+ * udev_device_get_driver:
+ * @udev_device: udev device
+ *
+ * Returns: the driver string, or #NULL if there is no driver attached.
+ **/
+UDEV_EXPORT const char *udev_device_get_driver(struct udev_device *udev_device)
+{
+ char driver[UTIL_NAME_SIZE];
+
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->driver_set) {
+ udev_device->driver_set = true;
+ if (util_get_sys_core_link_value(udev_device->udev, "driver", udev_device->syspath, driver, sizeof(driver)) > 0)
+ udev_device->driver = strdup(driver);
+ }
+ return udev_device->driver;
+}
+
+static int udev_device_set_driver(struct udev_device *udev_device, const char *driver)
+{
+ free(udev_device->driver);
+ udev_device->driver = strdup(driver);
+ if (udev_device->driver == NULL)
+ return -ENOMEM;
+ udev_device->driver_set = true;
+ udev_device_add_property(udev_device, "DRIVER", udev_device->driver);
+ return 0;
+}
+
+/**
+ * udev_device_get_devtype:
+ * @udev_device: udev device
+ *
+ * Retrieve the devtype string of the udev device.
+ *
+ * Returns: the devtype name of the udev device, or #NULL if it can not be determined
+ **/
+UDEV_EXPORT const char *udev_device_get_devtype(struct udev_device *udev_device)
+{
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->devtype_set) {
+ udev_device->devtype_set = true;
+ udev_device_read_uevent_file(udev_device);
+ }
+ return udev_device->devtype;
+}
+
+static int udev_device_set_devtype(struct udev_device *udev_device, const char *devtype)
+{
+ free(udev_device->devtype);
+ udev_device->devtype = strdup(devtype);
+ if (udev_device->devtype == NULL)
+ return -ENOMEM;
+ udev_device->devtype_set = true;
+ udev_device_add_property(udev_device, "DEVTYPE", udev_device->devtype);
+ return 0;
+}
+
+static int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
+{
+ free(udev_device->subsystem);
+ udev_device->subsystem = strdup(subsystem);
+ if (udev_device->subsystem == NULL)
+ return -ENOMEM;
+ udev_device->subsystem_set = true;
+ udev_device_add_property(udev_device, "SUBSYSTEM", udev_device->subsystem);
+ return 0;
+}
+
+/**
+ * udev_device_get_subsystem:
+ * @udev_device: udev device
+ *
+ * Retrieve the subsystem string of the udev device. The string does not
+ * contain any "/".
+ *
+ * Returns: the subsystem name of the udev device, or #NULL if it can not be determined
+ **/
+UDEV_EXPORT const char *udev_device_get_subsystem(struct udev_device *udev_device)
+{
+ char subsystem[UTIL_NAME_SIZE];
+
+ if (udev_device == NULL)
+ return NULL;
+ if (!udev_device->subsystem_set) {
+ udev_device->subsystem_set = true;
+ /* read "subsystem" link */
+ if (util_get_sys_core_link_value(udev_device->udev, "subsystem", udev_device->syspath, subsystem, sizeof(subsystem)) > 0) {
+ udev_device_set_subsystem(udev_device, subsystem);
+ return udev_device->subsystem;
+ }
+ /* implicit names */
+ if (strncmp(udev_device->devpath, "/module/", 8) == 0) {
+ udev_device_set_subsystem(udev_device, "module");
+ return udev_device->subsystem;
+ }
+ if (strstr(udev_device->devpath, "/drivers/") != NULL) {
+ udev_device_set_subsystem(udev_device, "drivers");
+ return udev_device->subsystem;
+ }
+ if (strncmp(udev_device->devpath, "/subsystem/", 11) == 0 ||
+ strncmp(udev_device->devpath, "/class/", 7) == 0 ||
+ strncmp(udev_device->devpath, "/bus/", 5) == 0) {
+ udev_device_set_subsystem(udev_device, "subsystem");
+ return udev_device->subsystem;
+ }
+ }
+ return udev_device->subsystem;
+}
+
+mode_t udev_device_get_devnode_mode(struct udev_device *udev_device)
+{
+ if (!udev_device->info_loaded)
+ udev_device_read_uevent_file(udev_device);
+ return udev_device->devnode_mode;
+}
+
+static int udev_device_set_devnode_mode(struct udev_device *udev_device, mode_t mode)
+{
+ char num[32];
+
+ udev_device->devnode_mode = mode;
+ snprintf(num, sizeof(num), "%#o", mode);
+ udev_device_add_property(udev_device, "DEVMODE", num);
+ return 0;
+}
+
struct udev_list_entry *udev_device_add_property(struct udev_device *udev_device, const char *key, const char *value)
{
udev_device->envp_uptodate = false;
udev_list_entry_delete(list_entry);
return NULL;
}
- return udev_list_entry_add(udev_device->udev, &udev_device->properties_list, key, value, 1, 0);
+ return udev_list_entry_add(&udev_device->properties_list, key, value);
}
static struct udev_list_entry *udev_device_add_property_from_string(struct udev_device *udev_device, const char *property)
udev_device_add_tag(udev_device, tag);
}
}
+ } else if (strncmp(property, "USEC_INITIALIZED=", 19) == 0) {
+ udev_device_set_usec_initialized(udev_device, strtoull(&property[19], NULL, 10));
} else if (strncmp(property, "DRIVER=", 7) == 0) {
udev_device_set_driver(udev_device, &property[7]);
} else if (strncmp(property, "ACTION=", 7) == 0) {
udev_device_set_timeout(udev_device, strtoull(&property[8], NULL, 10));
} else if (strncmp(property, "IFINDEX=", 8) == 0) {
udev_device_set_ifindex(udev_device, strtoull(&property[8], NULL, 10));
+ } else if (strncmp(property, "DEVMODE=", 8) == 0) {
+ udev_device_set_devnode_mode(udev_device, strtoul(&property[8], NULL, 8));
} else {
udev_device_add_property_from_string(udev_device, property);
}
*
* Returns: the value of a device property, or #NULL if there is no such property.
**/
-const char *udev_device_get_property_value(struct udev_device *udev_device, const char *key)
+UDEV_EXPORT const char *udev_device_get_property_value(struct udev_device *udev_device, const char *key)
{
struct udev_list_entry *list_entry;
return NULL;
list_entry = udev_device_get_properties_list_entry(udev_device);
- list_entry = udev_list_entry_get_by_name(list_entry, key);
+ list_entry = udev_list_entry_get_by_name(list_entry, key);
return udev_list_entry_get_value(list_entry);
}
-int udev_device_read_db(struct udev_device *udev_device)
+int udev_device_read_db(struct udev_device *udev_device, const char *dbfile)
{
- const char *id;
char filename[UTIL_PATH_SIZE];
char line[UTIL_LINE_SIZE];
FILE *f;
- if (udev_device->db_loaded)
- return 0;
- udev_device->db_loaded = true;
+ /* providing a database file will always force-load it */
+ if (dbfile == NULL) {
+ const char *id;
- id = udev_device_get_id_filename(udev_device);
- if (id == NULL)
- return -1;
- util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev_device->udev), "/.udev/db/", id, NULL);
- f = fopen(filename, "re");
+ if (udev_device->db_loaded)
+ return 0;
+ udev_device->db_loaded = true;
+
+ id = udev_device_get_id_filename(udev_device);
+ if (id == NULL)
+ return -1;
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev_device->udev), "/data/", id, NULL);
+ dbfile = filename;
+ }
+
+ f = fopen(dbfile, "re");
if (f == NULL) {
- info(udev_device->udev, "no db file to read %s: %m\n", filename);
+ info(udev_device->udev, "no db file to read %s: %m\n", dbfile);
return -1;
}
udev_device->is_initialized = true;
break;
case 'E':
entry = udev_device_add_property_from_string(udev_device, val);
- udev_list_entry_set_flags(entry, 1);
+ udev_list_entry_set_num(entry, true);
break;
case 'G':
udev_device_add_tag(udev_device, val);
udev_device_set_ifindex(udev_device, strtoull(&line[8], NULL, 10));
else if (strncmp(line, "DEVNAME=", 8) == 0)
udev_device_set_knodename(udev_device, &line[8]);
+ else if (strncmp(line, "DEVMODE=", 8) == 0)
+ udev_device->devnode_mode = strtoul(&line[8], NULL, 8);
udev_device_add_property_from_string(udev_device, line);
}
return NULL;
udev_device->refcount = 1;
udev_device->udev = udev;
- udev_list_init(&udev_device->devlinks_list);
- udev_list_init(&udev_device->properties_list);
- udev_list_init(&udev_device->sysattr_value_list);
- udev_list_init(&udev_device->sysattr_list);
- udev_list_init(&udev_device->tags_list);
- udev_device->event_timeout = -1;
+ udev_list_init(udev, &udev_device->devlinks_list, true);
+ udev_list_init(udev, &udev_device->properties_list, true);
+ udev_list_init(udev, &udev_device->sysattr_value_list, true);
+ udev_list_init(udev, &udev_device->sysattr_list, false);
+ udev_list_init(udev, &udev_device->tags_list, true);
+ udev_device->timeout = -1;
udev_device->watch_handle = -1;
/* copy global properties */
udev_list_entry_foreach(list_entry, udev_get_properties_list_entry(udev))
*
* Returns: a new udev device, or #NULL, if it does not exist
**/
-struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath)
+UDEV_EXPORT struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath)
{
size_t len;
const char *subdir;
*
* Returns: a new udev device, or #NULL, if it does not exist
**/
-struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum)
+UDEV_EXPORT struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum)
{
char path[UTIL_PATH_SIZE];
const char *type_str;
if (sscanf(id, "%c%i:%i", &type, &maj, &min) != 3)
return NULL;
return udev_device_new_from_devnum(udev, type, makedev(maj, min));
+ case 'n': {
+ int sk;
+ struct ifreq ifr;
+ struct udev_device *dev;
+ int ifindex;
+
+ ifindex = strtoul(&id[1], NULL, 10);
+ if (ifindex <= 0)
+ return NULL;
+
+ sk = socket(PF_INET, SOCK_DGRAM, 0);
+ if (sk < 0)
+ return NULL;
+ memset(&ifr, 0x00, sizeof(struct ifreq));
+ ifr.ifr_ifindex = ifindex;
+ if (ioctl(sk, SIOCGIFNAME, &ifr) != 0) {
+ close(sk);
+ return NULL;
+ }
+ close(sk);
+
+ dev = udev_device_new_from_subsystem_sysname(udev, "net", ifr.ifr_name);
+ if (dev == NULL)
+ return NULL;
+ if (udev_device_get_ifindex(dev) == ifindex)
+ return dev;
+ udev_device_unref(dev);
+ return NULL;
+ }
case '+':
util_strscpy(subsys, sizeof(subsys), &id[1]);
sysname = strchr(subsys, ':');
*
* Returns: a new udev device, or #NULL, if it does not exist
**/
-struct udev_device *udev_device_new_from_subsystem_sysname(struct udev *udev, const char *subsystem, const char *sysname)
+UDEV_EXPORT struct udev_device *udev_device_new_from_subsystem_sysname(struct udev *udev, const char *subsystem, const char *sysname)
{
char path_full[UTIL_PATH_SIZE];
char *path;
*
* Returns: a new udev device, or #NULL, if it does not exist
**/
-struct udev_device *udev_device_new_from_environment(struct udev *udev)
+UDEV_EXPORT struct udev_device *udev_device_new_from_environment(struct udev *udev)
{
int i;
struct udev_device *udev_device;
*
* Returns: a new udev device, or #NULL, if it no parent exist.
**/
-struct udev_device *udev_device_get_parent(struct udev_device *udev_device)
+UDEV_EXPORT struct udev_device *udev_device_get_parent(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
*
* Returns: a new udev device, or #NULL if no matching parent exists.
**/
-struct udev_device *udev_device_get_parent_with_subsystem_devtype(struct udev_device *udev_device, const char *subsystem, const char *devtype)
+UDEV_EXPORT struct udev_device *udev_device_get_parent_with_subsystem_devtype(struct udev_device *udev_device, const char *subsystem, const char *devtype)
{
struct udev_device *parent;
*
* Returns: the udev library context
**/
-struct udev *udev_device_get_udev(struct udev_device *udev_device)
+UDEV_EXPORT struct udev *udev_device_get_udev(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
*
* Returns: the passed udev device
**/
-struct udev_device *udev_device_ref(struct udev_device *udev_device)
+UDEV_EXPORT struct udev_device *udev_device_ref(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
* the resources of the device will be released.
*
**/
-void udev_device_unref(struct udev_device *udev_device)
+UDEV_EXPORT void udev_device_unref(struct udev_device *udev_device)
{
if (udev_device == NULL)
return;
free(udev_device->devnode);
free(udev_device->subsystem);
free(udev_device->devtype);
- udev_list_cleanup_entries(udev_device->udev, &udev_device->devlinks_list);
- udev_list_cleanup_entries(udev_device->udev, &udev_device->properties_list);
- udev_list_cleanup_entries(udev_device->udev, &udev_device->sysattr_value_list);
- udev_list_cleanup_entries(udev_device->udev, &udev_device->sysattr_list);
- udev_list_cleanup_entries(udev_device->udev, &udev_device->tags_list);
+ udev_list_cleanup(&udev_device->devlinks_list);
+ udev_list_cleanup(&udev_device->properties_list);
+ udev_list_cleanup(&udev_device->sysattr_value_list);
+ udev_list_cleanup(&udev_device->sysattr_list);
+ udev_list_cleanup(&udev_device->tags_list);
free(udev_device->action);
free(udev_device->driver);
free(udev_device->devpath_old);
- free(udev_device->sysname_old);
free(udev_device->knodename);
free(udev_device->id_filename);
free(udev_device->envp);
*
* Returns: the devpath of the udev device
**/
-const char *udev_device_get_devpath(struct udev_device *udev_device)
+UDEV_EXPORT const char *udev_device_get_devpath(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
*
* Returns: the sys path of the udev device
**/
-const char *udev_device_get_syspath(struct udev_device *udev_device)
+UDEV_EXPORT const char *udev_device_get_syspath(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
*
* Returns: the sys name of the device device
**/
-const char *udev_device_get_sysname(struct udev_device *udev_device)
+UDEV_EXPORT const char *udev_device_get_sysname(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
*
* Returns: the trailing number of of the device name
**/
-const char *udev_device_get_sysnum(struct udev_device *udev_device)
+UDEV_EXPORT const char *udev_device_get_sysnum(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
*
* Returns: the device node file name of the udev device, or #NULL if no device node exists
**/
-const char *udev_device_get_devnode(struct udev_device *udev_device)
+UDEV_EXPORT const char *udev_device_get_devnode(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
if (!udev_device->info_loaded) {
udev_device_read_uevent_file(udev_device);
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
}
/* we might get called before we handled an event and have a db, use the kernel-provided name */
return udev_device->devnode;
}
-/**
- * udev_device_get_subsystem:
- * @udev_device: udev device
- *
- * Retrieve the subsystem string of the udev device. The string does not
- * contain any "/".
- *
- * Returns: the subsystem name of the udev device, or #NULL if it can not be determined
- **/
-const char *udev_device_get_subsystem(struct udev_device *udev_device)
-{
- char subsystem[UTIL_NAME_SIZE];
-
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->subsystem_set) {
- udev_device->subsystem_set = true;
- /* read "subsystem" link */
- if (util_get_sys_subsystem(udev_device->udev, udev_device->syspath, subsystem, sizeof(subsystem)) > 0) {
- udev_device_set_subsystem(udev_device, subsystem);
- return udev_device->subsystem;
- }
- /* implicit names */
- if (strncmp(udev_device->devpath, "/module/", 8) == 0) {
- udev_device_set_subsystem(udev_device, "module");
- return udev_device->subsystem;
- }
- if (strstr(udev_device->devpath, "/drivers/") != NULL) {
- udev_device_set_subsystem(udev_device, "drivers");
- return udev_device->subsystem;
- }
- if (strncmp(udev_device->devpath, "/subsystem/", 11) == 0 ||
- strncmp(udev_device->devpath, "/class/", 7) == 0 ||
- strncmp(udev_device->devpath, "/bus/", 5) == 0) {
- udev_device_set_subsystem(udev_device, "subsystem");
- return udev_device->subsystem;
- }
- }
- return udev_device->subsystem;
-}
-
-/**
- * udev_device_get_devtype:
- * @udev_device: udev device
- *
- * Retrieve the devtype string of the udev device.
- *
- * Returns: the devtype name of the udev device, or #NULL if it can not be determined
- **/
-const char *udev_device_get_devtype(struct udev_device *udev_device)
-{
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->devtype_set) {
- udev_device->devtype_set = true;
- udev_device_read_uevent_file(udev_device);
- }
- return udev_device->devtype;
-}
-
/**
* udev_device_get_devlinks_list_entry:
* @udev_device: udev device
*
* Returns: the first entry of the device node link list
**/
-struct udev_list_entry *udev_device_get_devlinks_list_entry(struct udev_device *udev_device)
+UDEV_EXPORT struct udev_list_entry *udev_device_get_devlinks_list_entry(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
if (!udev_device->info_loaded)
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
return udev_list_get_entry(&udev_device->devlinks_list);
}
void udev_device_cleanup_devlinks_list(struct udev_device *udev_device)
{
udev_device->devlinks_uptodate = false;
- udev_list_cleanup_entries(udev_device->udev, &udev_device->devlinks_list);
+ udev_list_cleanup(&udev_device->devlinks_list);
}
/**
*
* Returns: the first entry of the property list
**/
-struct udev_list_entry *udev_device_get_properties_list_entry(struct udev_device *udev_device)
+UDEV_EXPORT struct udev_list_entry *udev_device_get_properties_list_entry(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
if (!udev_device->info_loaded) {
udev_device_read_uevent_file(udev_device);
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
}
if (!udev_device->devlinks_uptodate) {
char symlinks[UTIL_PATH_SIZE];
return udev_list_get_entry(&udev_device->properties_list);
}
-/**
- * udev_device_get_driver:
- * @udev_device: udev device
- *
- * Returns: the driver string, or #NULL if there is no driver attached.
- **/
-const char *udev_device_get_driver(struct udev_device *udev_device)
-{
- char driver[UTIL_NAME_SIZE];
-
- if (udev_device == NULL)
- return NULL;
- if (!udev_device->driver_set) {
- udev_device->driver_set = true;
- if (util_get_sys_driver(udev_device->udev, udev_device->syspath, driver, sizeof(driver)) > 0)
- udev_device->driver = strdup(driver);
- }
- return udev_device->driver;
-}
-
-/**
- * udev_device_get_devnum:
- * @udev_device: udev device
- *
- * Returns: the device major/minor number.
- **/
-dev_t udev_device_get_devnum(struct udev_device *udev_device)
-{
- if (udev_device == NULL)
- return makedev(0, 0);
- if (!udev_device->info_loaded)
- udev_device_read_uevent_file(udev_device);
- return udev_device->devnum;
-}
-
/**
* udev_device_get_action:
* @udev_device: udev device
*
* Returns: the kernel action value, or #NULL if there is no action value available.
**/
-const char *udev_device_get_action(struct udev_device *udev_device)
+UDEV_EXPORT const char *udev_device_get_action(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
return udev_device->action;
}
-/**
- * udev_device_get_devnum:
- * @udev_device: udev device
- *
- * This is only valid if the device was received through a monitor. Devices read from
- * sys do not have a sequence number.
- *
- * Returns: the kernel event sequence number, or 0 if there is no sequence number available.
- **/
-unsigned long long int udev_device_get_seqnum(struct udev_device *udev_device)
-{
- if (udev_device == NULL)
- return 0;
- return udev_device->seqnum;
-}
-
/**
* udev_device_get_usec_since_initialized:
* @udev_device: udev device
*
* Returns: the number of microseconds since the device was first seen.
**/
-unsigned long long int udev_device_get_usec_since_initialized(struct udev_device *udev_device)
+UDEV_EXPORT unsigned long long int udev_device_get_usec_since_initialized(struct udev_device *udev_device)
{
unsigned long long now;
if (udev_device == NULL)
return 0;
if (!udev_device->info_loaded)
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
if (udev_device->usec_initialized == 0)
return 0;
- now = usec_monotonic();
+ now = now_usec();
if (now == 0)
return 0;
return now - udev_device->usec_initialized;
void udev_device_set_usec_initialized(struct udev_device *udev_device, unsigned long long usec_initialized)
{
+ char num[32];
+
udev_device->usec_initialized = usec_initialized;
+ snprintf(num, sizeof(num), "%llu", usec_initialized);
+ udev_device_add_property(udev_device, "USEC_INITIALIZED", num);
}
/**
*
* Returns: the content of a sys attribute file, or #NULL if there is no sys attribute value.
**/
-const char *udev_device_get_sysattr_value(struct udev_device *udev_device, const char *sysattr)
+UDEV_EXPORT const char *udev_device_get_sysattr_value(struct udev_device *udev_device, const char *sysattr)
{
struct udev_list_entry *list_entry;
char path[UTIL_PATH_SIZE];
return NULL;
/* look for possibly already cached result */
- udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_device->sysattr_value_list)) {
- if (strcmp(udev_list_entry_get_name(list_entry), sysattr) == 0) {
- dbg(udev_device->udev, "got '%s' (%s) from cache\n",
- sysattr, udev_list_entry_get_value(list_entry));
- return udev_list_entry_get_value(list_entry);
- }
+ list_entry = udev_list_get_entry(&udev_device->sysattr_value_list);
+ list_entry = udev_list_entry_get_by_name(list_entry, sysattr);
+ if (list_entry != NULL) {
+ dbg(udev_device->udev, "got '%s' (%s) from cache\n",
+ sysattr, udev_list_entry_get_value(list_entry));
+ return udev_list_entry_get_value(list_entry);
}
util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", sysattr, NULL);
if (lstat(path, &statbuf) != 0) {
dbg(udev_device->udev, "no attribute '%s', keep negative entry\n", path);
- udev_list_entry_add(udev_device->udev, &udev_device->sysattr_value_list, sysattr, NULL, 0, 0);
+ udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, NULL);
goto out;
}
if (S_ISLNK(statbuf.st_mode)) {
- char target[UTIL_NAME_SIZE];
- int len;
- char *pos;
-
- /* some core links return the last element of the target path */
- if (strcmp(sysattr, "driver") != 0 &&
- strcmp(sysattr, "subsystem") != 0 &&
- strcmp(sysattr, "module") != 0)
- goto out;
-
- len = readlink(path, target, sizeof(target));
- if (len <= 0 || len == sizeof(target))
+ struct udev_device *dev;
+
+ /*
+ * Some core links return only the last element of the target path,
+ * these are just values, the paths should not be exposed.
+ */
+ if (strcmp(sysattr, "driver") == 0 ||
+ strcmp(sysattr, "subsystem") == 0 ||
+ strcmp(sysattr, "module") == 0) {
+ if (util_get_sys_core_link_value(udev_device->udev, sysattr,
+ udev_device->syspath, value, sizeof(value)) < 0)
+ return NULL;
+ dbg(udev_device->udev, "cache '%s' with link value '%s'\n", sysattr, value);
+ list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
+ val = udev_list_entry_get_value(list_entry);
goto out;
- target[len] = '\0';
+ }
- pos = strrchr(target, '/');
- if (pos != NULL) {
- pos = &pos[1];
- dbg(udev_device->udev, "cache '%s' with link value '%s'\n", sysattr, pos);
- list_entry = udev_list_entry_add(udev_device->udev, &udev_device->sysattr_value_list, sysattr, pos, 0, 0);
+ /* resolve link to a device and return its syspath */
+ util_strscpyl(path, sizeof(path), udev_device->syspath, "/", sysattr, NULL);
+ dev = udev_device_new_from_syspath(udev_device->udev, path);
+ if (dev != NULL) {
+ list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr,
+ udev_device_get_syspath(dev));
val = udev_list_entry_get_value(list_entry);
+ udev_device_unref(dev);
}
goto out;
value[size] = '\0';
util_remove_trailing_chars(value, '\n');
dbg(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
- list_entry = udev_list_entry_add(udev_device->udev, &udev_device->sysattr_value_list, sysattr, value, 0, 0);
+ list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
val = udev_list_entry_get_value(list_entry);
out:
return val;
if ((statbuf.st_mode & S_IRUSR) == 0)
continue;
- udev_list_entry_add(udev_device->udev, &udev_device->sysattr_list,
- dent->d_name, NULL, 0, 0);
+ udev_list_entry_add(&udev_device->sysattr_list, dent->d_name, NULL);
num++;
}
*
* Returns: the first entry of the property list
**/
-struct udev_list_entry *udev_device_get_sysattr_list_entry(struct udev_device *udev_device)
+UDEV_EXPORT struct udev_list_entry *udev_device_get_sysattr_list_entry(struct udev_device *udev_device)
{
if (!udev_device->sysattr_list_read) {
int ret;
return 0;
}
-int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
-{
- free(udev_device->subsystem);
- udev_device->subsystem = strdup(subsystem);
- if (udev_device->subsystem == NULL)
- return -ENOMEM;
- udev_device->subsystem_set = true;
- udev_device_add_property(udev_device, "SUBSYSTEM", udev_device->subsystem);
- return 0;
-}
-
-int udev_device_set_devtype(struct udev_device *udev_device, const char *devtype)
-{
- free(udev_device->devtype);
- udev_device->devtype = strdup(devtype);
- if (udev_device->devtype == NULL)
- return -ENOMEM;
- udev_device->devtype_set = true;
- udev_device_add_property(udev_device, "DEVTYPE", udev_device->devtype);
- return 0;
-}
-
int udev_device_set_devnode(struct udev_device *udev_device, const char *devnode)
{
free(udev_device->devnode);
struct udev_list_entry *list_entry;
udev_device->devlinks_uptodate = false;
- list_entry = udev_list_entry_add(udev_device->udev, &udev_device->devlinks_list, devlink, NULL, 1, 0);
+ list_entry = udev_list_entry_add(&udev_device->devlinks_list, devlink, NULL);
if (list_entry == NULL)
return -ENOMEM;
if (unique)
- udev_list_entry_set_flags(list_entry, 1);
+ udev_list_entry_set_num(list_entry, true);
return 0;
}
*
* Returns: 1 if the device is set up. 0 otherwise.
**/
-int udev_device_get_is_initialized(struct udev_device *udev_device)
+UDEV_EXPORT int udev_device_get_is_initialized(struct udev_device *udev_device)
{
if (!udev_device->info_loaded)
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
return udev_device->is_initialized;
}
if (strchr(tag, ':') != NULL || strchr(tag, ' ') != NULL)
return -EINVAL;
udev_device->tags_uptodate = false;
- if (udev_list_entry_add(udev_device->udev, &udev_device->tags_list, tag, NULL, 1, 0) != NULL)
+ if (udev_list_entry_add(&udev_device->tags_list, tag, NULL) != NULL)
return 0;
return -ENOMEM;
}
void udev_device_cleanup_tags_list(struct udev_device *udev_device)
{
udev_device->tags_uptodate = false;
- udev_list_cleanup_entries(udev_device->udev, &udev_device->tags_list);
+ udev_list_cleanup(&udev_device->tags_list);
}
/**
*
* Returns: the first entry of the tag list
**/
-struct udev_list_entry *udev_device_get_tags_list_entry(struct udev_device *udev_device)
+UDEV_EXPORT struct udev_list_entry *udev_device_get_tags_list_entry(struct udev_device *udev_device)
{
if (udev_device == NULL)
return NULL;
+ if (!udev_device->info_loaded)
+ udev_device_read_db(udev_device, NULL);
return udev_list_get_entry(&udev_device->tags_list);
}
-int udev_device_has_tag(struct udev_device *udev_device, const char *tag)
+UDEV_EXPORT int udev_device_has_tag(struct udev_device *udev_device, const char *tag)
{
struct udev_list_entry *list_entry;
+ if (udev_device == NULL)
+ return false;
if (!udev_device->info_loaded)
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
list_entry = udev_device_get_tags_list_entry(udev_device);
- list_entry = udev_list_entry_get_by_name(list_entry, tag);
- if (list_entry != NULL)
- return 1;
- return 0;
+ if (udev_list_entry_get_by_name(list_entry, tag) != NULL)
+ return true;
+ return false;
}
#define ENVP_SIZE 128
return 0;
}
-int udev_device_set_driver(struct udev_device *udev_device, const char *driver)
-{
- free(udev_device->driver);
- udev_device->driver = strdup(driver);
- if (udev_device->driver == NULL)
- return -ENOMEM;
- udev_device->driver_set = true;
- udev_device_add_property(udev_device, "DRIVER", udev_device->driver);
- return 0;
-}
-
-const char *udev_device_get_devpath_old(struct udev_device *udev_device)
-{
- return udev_device->devpath_old;
-}
-
-int udev_device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old)
-{
- const char *pos;
- size_t len;
-
- free(udev_device->devpath_old);
- udev_device->devpath_old = strdup(devpath_old);
- if (udev_device->devpath_old == NULL)
- return -ENOMEM;
- udev_device_add_property(udev_device, "DEVPATH_OLD", udev_device->devpath_old);
-
- pos = strrchr(udev_device->devpath_old, '/');
- if (pos == NULL)
- return -EINVAL;
- udev_device->sysname_old = strdup(&pos[1]);
- if (udev_device->sysname_old == NULL)
- return -ENOMEM;
-
- /* some devices have '!' in their name, change that to '/' */
- len = 0;
- while (udev_device->sysname_old[len] != '\0') {
- if (udev_device->sysname_old[len] == '!')
- udev_device->sysname_old[len] = '/';
- len++;
- }
- return 0;
-}
-
-const char *udev_device_get_sysname_old(struct udev_device *udev_device)
-{
- if (udev_device == NULL)
- return NULL;
- return udev_device->sysname_old;
-}
-
-const char *udev_device_get_knodename(struct udev_device *udev_device)
-{
- return udev_device->knodename;
-}
-
-int udev_device_set_knodename(struct udev_device *udev_device, const char *knodename)
-{
- free(udev_device->knodename);
- udev_device->knodename = strdup(knodename);
- if (udev_device->knodename == NULL)
- return -ENOMEM;
- /* do not overwrite the udev property with the kernel property */
- if (udev_device->devnode == NULL)
- udev_device_add_property(udev_device, "DEVNAME", udev_device->knodename);
- return 0;
-}
-
-int udev_device_get_timeout(struct udev_device *udev_device)
-{
- return udev_device->timeout;
-}
-
-int udev_device_set_timeout(struct udev_device *udev_device, int timeout)
-{
- udev_device->timeout = timeout;
- return 0;
-}
-int udev_device_get_event_timeout(struct udev_device *udev_device)
-{
- if (!udev_device->info_loaded)
- udev_device_read_db(udev_device);
- return udev_device->event_timeout;
-}
-
-int udev_device_set_event_timeout(struct udev_device *udev_device, int event_timeout)
-{
- char num[32];
-
- udev_device->event_timeout = event_timeout;
- snprintf(num, sizeof(num), "%u", event_timeout);
- udev_device_add_property(udev_device, "TIMEOUT", num);
- return 0;
-}
-
-int udev_device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum)
-{
- char num[32];
-
- udev_device->seqnum = seqnum;
- snprintf(num, sizeof(num), "%llu", seqnum);
- udev_device_add_property(udev_device, "SEQNUM", num);
- return 0;
-}
-
-int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum)
-{
- char num[32];
-
- udev_device->devnum = devnum;
-
- snprintf(num, sizeof(num), "%u", major(devnum));
- udev_device_add_property(udev_device, "MAJOR", num);
- snprintf(num, sizeof(num), "%u", minor(devnum));
- udev_device_add_property(udev_device, "MINOR", num);
- return 0;
-}
-
int udev_device_get_devlink_priority(struct udev_device *udev_device)
{
if (!udev_device->info_loaded)
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
return udev_device->devlink_priority;
}
int udev_device_get_watch_handle(struct udev_device *udev_device)
{
if (!udev_device->info_loaded)
- udev_device_read_db(udev_device);
+ udev_device_read_db(udev_device, NULL);
return udev_device->watch_handle;
}
return 0;
}
-int udev_device_get_ifindex(struct udev_device *udev_device)
+bool udev_device_get_db_persist(struct udev_device *udev_device)
{
- if (!udev_device->info_loaded)
- udev_device_read_uevent_file(udev_device);
- return udev_device->ifindex;
+ return udev_device->db_persist;
}
-int udev_device_set_ifindex(struct udev_device *udev_device, int ifindex)
+void udev_device_set_db_persist(struct udev_device *udev_device)
{
- char num[32];
-
- udev_device->ifindex = ifindex;
- snprintf(num, sizeof(num), "%u", ifindex);
- udev_device_add_property(udev_device, "IFINDEX", num);
- return 0;
+ udev_device->db_persist = true;
}