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-rw-r--r--udev/Makefile.am3
-rw-r--r--udev/lib/Makefile.am1
-rw-r--r--udev/lib/exported_symbols12
-rw-r--r--udev/lib/libudev-device.c125
-rw-r--r--udev/lib/libudev-enumerate.c110
-rw-r--r--udev/lib/libudev-private.h12
-rw-r--r--udev/lib/libudev-util.c55
-rw-r--r--udev/lib/libudev.h24
-rw-r--r--udev/lib/test-libudev.c70
-rw-r--r--udev/udevadm-info.c209
-rw-r--r--udev/udevadm-monitor.c36
11 files changed, 315 insertions, 342 deletions
diff --git a/udev/Makefile.am b/udev/Makefile.am
index 323f508b2d..f15330b4f8 100644
--- a/udev/Makefile.am
+++ b/udev/Makefile.am
@@ -29,10 +29,11 @@ common_files = \
lib/libudev.h \
lib/libudev-private.h \
lib/libudev.c \
+ lib/libudev-list.c \
+ lib/libudev-util.c \
lib/libudev-device.c \
lib/libudev-monitor.c \
lib/libudev-enumerate.c \
- lib/libudev-util.c \
lib/libudev-ctrl.c
if USE_SELINUX
diff --git a/udev/lib/Makefile.am b/udev/lib/Makefile.am
index 7329ab6c65..0386465e80 100644
--- a/udev/lib/Makefile.am
+++ b/udev/lib/Makefile.am
@@ -19,6 +19,7 @@ include_HEADERS =\
libudev_la_SOURCES =\
libudev-private.h \
libudev.c \
+ libudev-list.c \
libudev-util.c \
libudev-device.c \
libudev-enumerate.c \
diff --git a/udev/lib/exported_symbols b/udev/lib/exported_symbols
index 6b034d4594..e46aecbd37 100644
--- a/udev/lib/exported_symbols
+++ b/udev/lib/exported_symbols
@@ -9,6 +9,9 @@ udev_get_userdata
udev_set_userdata
udev_get_sys_path
udev_get_dev_path
+udev_list_get_next
+udev_list_get_name
+udev_list_get_value
udev_device_new_from_syspath
udev_device_new_from_devnum
udev_device_get_parent
@@ -20,14 +23,17 @@ udev_device_get_devpath
udev_device_get_devnode
udev_device_get_sysname
udev_device_get_subsystem
-udev_device_get_devlinks
-udev_device_get_properties
+udev_device_get_devlinks_list
+udev_device_get_properties_list
udev_device_get_action
udev_device_get_driver
udev_device_get_devnum
udev_device_get_seqnum
udev_device_get_attr_value
-udev_enumerate_devices
+udev_enumerate_new_from_subsystems
+udev_enumerate_ref
+udev_enumerate_unref
+udev_enumerate_get_devices_list
udev_monitor_new_from_socket
udev_monitor_new_from_netlink
udev_monitor_enable_receiving
diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
index 4a9c815064..a772dbbcf8 100644
--- a/udev/lib/libudev-device.c
+++ b/udev/lib/libudev-device.c
@@ -40,7 +40,7 @@ struct udev_device {
char *devname;
char *subsystem;
struct list_head link_list;
- struct list_head env_list;
+ struct list_head properties_list;
char *action;
char *driver;
char *devpath_old;
@@ -189,7 +189,7 @@ struct udev_device *device_init(struct udev *udev)
udev_device->refcount = 1;
udev_device->udev = udev;
INIT_LIST_HEAD(&udev_device->link_list);
- INIT_LIST_HEAD(&udev_device->env_list);
+ INIT_LIST_HEAD(&udev_device->properties_list);
INIT_LIST_HEAD(&udev_device->attr_list);
info(udev_device->udev, "udev_device: %p created\n", udev_device);
return udev_device;
@@ -247,6 +247,9 @@ struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, de
{
char path[UTIL_PATH_SIZE];
const char *type_str;
+ struct udev_enumerate *enumerate;
+ struct udev_list *list;
+ struct udev_device *device = NULL;
if (type == 'b')
type_str = "block";
@@ -255,12 +258,32 @@ struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, de
else
return NULL;
+ /* /sys/dev/{block,char}/<maj>:<min> links */
snprintf(path, sizeof(path), "%s/dev/%s/%u:%u", udev_get_sys_path(udev),
type_str, major(devnum), minor(devnum));
- if (util_resolve_sys_link(udev, path, sizeof(path)) < 0)
- return NULL;
+ if (util_resolve_sys_link(udev, path, sizeof(path)) == 0)
+ return udev_device_new_from_syspath(udev, path);
- return udev_device_new_from_syspath(udev, path);
+ /* search all sys devices for the major/minor */
+ enumerate = udev_enumerate_new_from_subsystems(udev, NULL);
+ if (enumerate == NULL)
+ return NULL;
+ list = udev_enumerate_get_devices_list(enumerate);
+ while (list != NULL) {
+ struct udev_device *device_loop;
+
+ device_loop = udev_device_new_from_syspath(udev, udev_list_get_name(list));
+ if (device_loop != NULL) {
+ if (udev_device_get_devnum(device_loop) == devnum) {
+ device = device_loop;
+ break;
+ }
+ udev_device_unref(device_loop);
+ }
+ list = udev_list_get_next(list);
+ }
+ udev_enumerate_unref(enumerate);
+ return device;
}
static struct udev_device *device_new_from_parent(struct udev_device *udev_device)
@@ -357,13 +380,13 @@ void udev_device_unref(struct udev_device *udev_device)
free(udev_device->syspath);
free(udev_device->devname);
free(udev_device->subsystem);
- util_name_list_cleanup(udev_device->udev, &udev_device->link_list);
- util_name_list_cleanup(udev_device->udev, &udev_device->env_list);
+ list_cleanup(udev_device->udev, &udev_device->link_list);
+ list_cleanup(udev_device->udev, &udev_device->properties_list);
free(udev_device->action);
free(udev_device->driver);
free(udev_device->devpath_old);
free(udev_device->physdevpath);
- util_name_list_cleanup(udev_device->udev, &udev_device->attr_list);
+ list_cleanup(udev_device->udev, &udev_device->attr_list);
info(udev_device->udev, "udev_device: %p released\n", udev_device);
free(udev_device);
}
@@ -466,64 +489,38 @@ const char *udev_device_get_subsystem(struct udev_device *udev_device)
}
/**
- * udev_device_get_devlinks:
+ * udev_device_get_devlinks_list:
* @udev_device: udev device
- * @cb: function to be called for every device link found
- * @data: data to be passed to the function
*
- * Retrieve the device links pointing to the device file of the
- * udev device. For every device link, the passed function will be
- * called with the device link string.
- * The path is an absolute path, and starts with the device directory.
- * If the function returns 1, remaning device links will be ignored.
+ * Retrieve the list of device links pointing to the device file of
+ * the udev device. The next list entry can be retrieved with
+ * udev_list_next(), which returns #NULL if no more entries exist.
+ * The devlink path can be retrieved from the list entry by
+ * udev_list_get_name(). The path is an absolute path, and starts with
+ * the device directory.
*
- * Returns: the number of device links passed to the caller, or a negative value on error
+ * Returns: the first entry of the device node link list
**/
-int udev_device_get_devlinks(struct udev_device *udev_device,
- int (*cb)(struct udev_device *udev_device, const char *value, void *data),
- void *data)
+struct udev_list *udev_device_get_devlinks_list(struct udev_device *udev_device)
{
- struct util_name_entry *name_loop;
- int count = 0;
-
- if (udev_device == NULL)
- return -1;
- list_for_each_entry(name_loop, &udev_device->link_list, node) {
- count++;
- if (cb(udev_device, name_loop->name, data) != 0)
- break;
- }
- return count;
+ return list_get_entry(&udev_device->link_list);
}
/**
- * udev_device_get_properties:
+ * udev_device_get_properties_list:
* @udev_device: udev device
- * @cb: function to be called for every property found
- * @data: data to be passed to the function
*
- * Retrieve the property key/value pairs belonging to the
- * udev device. For every key/value pair, the passed function will be
- * called. If the function returns 1, remaning properties will be
- * ignored.
+ * Retrieve the list of key/value device properties of the udev
+ * device. The next list entry can be retrieved with udev_list_next(),
+ * which returns #NULL if no more entries exist. The property name
+ * can be retrieved from the list entry by udev_list_get_name(),
+ * the property value by udev_list_get_value().
*
- * Returns: the number of properties passed to the caller, or a negative value on error
+ * Returns: the first entry of the property list
**/
-int udev_device_get_properties(struct udev_device *udev_device,
- int (*cb)(struct udev_device *udev_device, const char *key, const char *value, void *data),
- void *data)
+struct udev_list *udev_device_get_properties_list(struct udev_device *udev_device)
{
- struct util_name_entry *name_loop;
- int count = 0;
-
- if (udev_device == NULL)
- return -1;
- list_for_each_entry(name_loop, &udev_device->env_list, node) {
- count++;
- if (cb(udev_device, name_loop->name, name_loop->value, data) != 0)
- break;
- }
- return count;
+ return list_get_entry(&udev_device->properties_list);
}
const char *udev_device_get_driver(struct udev_device *udev_device)
@@ -563,7 +560,7 @@ unsigned long long int udev_device_get_seqnum(struct udev_device *udev_device)
const char *udev_device_get_attr_value(struct udev_device *udev_device, const char *attr)
{
- struct util_name_entry *name_loop;
+ struct udev_list *list;
char path[UTIL_PATH_SIZE];
char value[UTIL_NAME_SIZE];
struct stat statbuf;
@@ -572,11 +569,13 @@ const char *udev_device_get_attr_value(struct udev_device *udev_device, const ch
const char *val = NULL;
/* look for possibly already cached result */
- list_for_each_entry(name_loop, &udev_device->attr_list, node) {
- if (strcmp(name_loop->name, attr) == 0) {
- info(udev_device->udev, "'%s' in cache '%s'\n", attr, name_loop->value);
- return name_loop->value;
+ list = list_get_entry(&udev_device->attr_list);
+ while (list != NULL) {
+ if (strcmp(udev_list_get_name(list), attr) == 0) {
+ info(udev_device->udev, "got '%s' (%s) from cache\n", attr, udev_list_get_value(list));
+ return udev_list_get_name(list);
}
+ list = udev_list_get_next(list);
}
util_strlcpy(path, udev_device_get_syspath(udev_device), sizeof(path));
@@ -601,7 +600,8 @@ const char *udev_device_get_attr_value(struct udev_device *udev_device, const ch
if (pos != NULL) {
pos = &pos[1];
info(udev_device->udev, "cache '%s' with link value '%s'\n", attr, pos);
- val = util_name_list_add(udev_device->udev, &udev_device->attr_list, attr, pos, 0)->value;
+ list = list_insert(udev_device->udev, &udev_device->attr_list, attr, pos, 0);
+ val = udev_list_get_value(list);
}
}
goto out;
@@ -632,7 +632,8 @@ const char *udev_device_get_attr_value(struct udev_device *udev_device, const ch
value[size] = '\0';
util_remove_trailing_chars(value, '\n');
info(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
- val = util_name_list_add(udev_device->udev, &udev_device->attr_list, attr, value, 0)->value;
+ list = list_insert(udev_device->udev, &udev_device->attr_list, attr, value, 0);
+ val = udev_list_get_value(list);
out:
return val;
}
@@ -669,14 +670,14 @@ int device_set_devname(struct udev_device *udev_device, const char *devname)
int device_add_devlink(struct udev_device *udev_device, const char *devlink)
{
- if (util_name_list_add(udev_device->udev, &udev_device->link_list, devlink, NULL, 0) == NULL)
+ if (list_insert(udev_device->udev, &udev_device->link_list, devlink, NULL, 0) == NULL)
return -ENOMEM;
return 0;
}
int device_add_property(struct udev_device *udev_device, const char *key, const char *value)
{
- if (util_name_list_add(udev_device->udev, &udev_device->env_list, key, value, 0) == NULL)
+ if (list_insert(udev_device->udev, &udev_device->properties_list, key, value, 0) == NULL)
return -ENOMEM;
return 0;
}
diff --git a/udev/lib/libudev-enumerate.c b/udev/lib/libudev-enumerate.c
index ca5e30e4a1..80df8bd72d 100644
--- a/udev/lib/libudev-enumerate.c
+++ b/udev/lib/libudev-enumerate.c
@@ -29,6 +29,38 @@
#include "libudev.h"
#include "libudev-private.h"
+struct udev_enumerate {
+ struct udev *udev;
+ int refcount;
+ struct list_head devices_list;
+};
+
+struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_enumerate)
+{
+ if (udev_enumerate == NULL)
+ return NULL;
+ udev_enumerate->refcount++;
+ return udev_enumerate;
+}
+
+void udev_enumerate_unref(struct udev_enumerate *udev_enumerate)
+{
+ if (udev_enumerate == NULL)
+ return;
+ udev_enumerate->refcount--;
+ if (udev_enumerate->refcount > 0)
+ return;
+ list_cleanup(udev_enumerate->udev, &udev_enumerate->devices_list);
+ free(udev_enumerate);
+}
+
+struct udev_list *udev_enumerate_get_devices_list(struct udev_enumerate *udev_enumerate)
+{
+ if (udev_enumerate == NULL)
+ return NULL;
+ return list_get_entry(&udev_enumerate->devices_list);
+}
+
static int devices_scan_subsystem(struct udev *udev,
const char *basedir, const char *subsystem, const char *subdir,
struct list_head *device_list)
@@ -55,7 +87,7 @@ static int devices_scan_subsystem(struct udev *udev,
util_strlcat(syspath, "/", sizeof(syspath));
util_strlcat(syspath, dent->d_name, sizeof(syspath));
util_resolve_sys_link(udev, syspath, sizeof(syspath));
- util_name_list_add(udev, device_list, syspath, NULL, 1);
+ list_insert(udev, device_list, syspath, NULL, 1);
}
closedir(dir);
return 0;
@@ -108,72 +140,46 @@ static int devices_delay(struct udev *udev, const char *syspath)
}
/**
- * udev_enumerate_devices:
+ * udev_enumerate_new_from_subsystems:
* @udev: udev library context
* @subsystem: the subsystem to enumerate
- * @cb: function to be called for every device found
- * @data: data to be passed to the function
*
- * Returns: the number of devices passed to the caller, or a negative value on error
+ * Returns: an enumeration context
**/
-int udev_enumerate_devices(struct udev *udev, const char *subsystem,
- int (*cb)(struct udev_device *udev_device, void *data),
- void *data)
+struct udev_enumerate *udev_enumerate_new_from_subsystems(struct udev *udev, const char *subsystem)
{
+ struct udev_enumerate *udev_enumerate;
char base[UTIL_PATH_SIZE];
struct stat statbuf;
- struct list_head device_list;
- struct util_name_entry *loop_device;
- struct util_name_entry *tmp_device;
- int cb_rc = 0;
- int count = 0;
+ struct udev_list *list;
+
+ if (udev == NULL)
+ return NULL;
- INIT_LIST_HEAD(&device_list);
+ udev_enumerate = malloc(sizeof(struct udev_enumerate));
+ if (udev_enumerate == NULL)
+ return NULL;
+ memset(udev_enumerate, 0x00, (sizeof(struct udev_enumerate)));
+ udev_enumerate->refcount = 1;
+ udev_enumerate->udev = udev;
+ INIT_LIST_HEAD(&udev_enumerate->devices_list);
/* if we have /sys/subsystem/, forget all the old stuff */
util_strlcpy(base, udev_get_sys_path(udev), sizeof(base));
util_strlcat(base, "/subsystem", sizeof(base));
if (stat(base, &statbuf) == 0) {
- devices_scan_subsystems(udev, "/subsystem", subsystem, "/devices", &device_list);
+ devices_scan_subsystems(udev, "/subsystem", subsystem, "/devices", &udev_enumerate->devices_list);
} else {
- devices_scan_subsystems(udev, "/bus", subsystem, "/devices", &device_list);
- devices_scan_subsystems(udev, "/class", subsystem, NULL, &device_list);
- }
-
- list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
- if (devices_delay(udev, loop_device->name))
- continue;
- if (cb_rc == 0) {
- struct udev_device *device;
-
- device = udev_device_new_from_syspath(udev, loop_device->name);
- if (device != NULL) {
- cb_rc = cb(device, data);
- count++;
- udev_device_unref(device);
- }
- }
- list_del(&loop_device->node);
- free(loop_device->name);
- free(loop_device);
+ devices_scan_subsystems(udev, "/bus", subsystem, "/devices", &udev_enumerate->devices_list);
+ devices_scan_subsystems(udev, "/class", subsystem, NULL, &udev_enumerate->devices_list);
}
- /* handle remaining delayed devices */
- list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
- if (cb_rc == 0) {
- struct udev_device *device;
-
- device = udev_device_new_from_syspath(udev, loop_device->name);
- if (device != NULL) {
- cb_rc = cb(device, data);
- count++;
- udev_device_unref(device);
- }
- }
- list_del(&loop_device->node);
- free(loop_device->name);
- free(loop_device);
+ /* sort delayed devices to the end of the list */
+ list = list_get_entry(&udev_enumerate->devices_list);
+ while (list != NULL) {
+ if (devices_delay(udev, udev_list_get_name(list)))
+ list_move_to_end(list, &udev_enumerate->devices_list);
+ list = udev_list_get_next(list);
}
-
- return count;
+ return udev_enumerate;
}
diff --git a/udev/lib/libudev-private.h b/udev/lib/libudev-private.h
index c8063d2d64..c80c940b1f 100644
--- a/udev/lib/libudev-private.h
+++ b/udev/lib/libudev-private.h
@@ -76,7 +76,7 @@ extern int device_set_devlink_priority(struct udev_device *udev_device, int prio
extern int device_get_ignore_remove(struct udev_device *udev_device);
extern int device_set_ignore_remove(struct udev_device *udev_device, int ignore);
-/* udev_ctrl - daemon runtime setup */
+/* libudev-ctrl - daemon runtime setup */
struct udev_ctrl;
extern struct udev_ctrl *udev_ctrl_new_from_socket(struct udev *udev, const char *socket_path);
extern int udev_ctrl_enable_receiving(struct udev_ctrl *uctrl);
@@ -102,6 +102,13 @@ extern int udev_ctrl_get_reload_rules(struct udev_ctrl_msg *ctrl_msg);
extern const char *udev_ctrl_get_set_env(struct udev_ctrl_msg *ctrl_msg);
extern int udev_ctrl_get_set_max_childs(struct udev_ctrl_msg *ctrl_msg);
+/* libudev-list */
+extern struct udev_list *list_insert(struct udev *udev, struct list_head *name_list,
+ const char *name, const char *value, int sort);
+extern struct udev_list *list_get_entry(struct list_head *list);
+extern void list_move_to_end(struct udev_list *list_entry, struct list_head *list);
+extern void list_cleanup(struct udev *udev, struct list_head *name_list);
+
/* libudev-utils */
#define UTIL_PATH_SIZE 1024
#define UTIL_LINE_SIZE 2048
@@ -115,9 +122,6 @@ struct util_name_entry {
extern ssize_t util_get_sys_subsystem(struct udev *udev, const char *syspath, char *subsystem, size_t size);
extern ssize_t util_get_sys_driver(struct udev *udev, const char *syspath, char *driver, size_t size);
extern int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size);
-extern struct util_name_entry *util_name_list_add(struct udev *udev, struct list_head *name_list,
- const char *name, const char *value, int sort);
-extern void util_name_list_cleanup(struct udev *udev, struct list_head *name_list);
extern int util_log_priority(const char *priority);
extern size_t util_path_encode(char *s, size_t len);
extern size_t util_path_decode(char *s);
diff --git a/udev/lib/libudev-util.c b/udev/lib/libudev-util.c
index aa544fea22..0e5bc37d43 100644
--- a/udev/lib/libudev-util.c
+++ b/udev/lib/libudev-util.c
@@ -97,61 +97,6 @@ int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size)
return 0;
}
-struct util_name_entry *util_name_list_add(struct udev *udev, struct list_head *name_list,
- const char *name, const char *value, int sort)
-{
- struct util_name_entry *name_loop;
- struct util_name_entry *name_new;
-
- /* avoid duplicate entries */
- list_for_each_entry(name_loop, name_list, node) {
- if (strcmp(name_loop->name, name) == 0) {
- dbg(udev, "'%s' is already in the list\n", name);
- return name_loop;
- }
- }
-
- if (sort) {
- list_for_each_entry(name_loop, name_list, node) {
- if (strcmp(name_loop->name, name) > 0)
- break;
- }
- }
-
- name_new = malloc(sizeof(struct util_name_entry));
- if (name_new == NULL)
- return NULL;
- memset(name_new, 0x00, sizeof(struct util_name_entry));
- name_new->name = strdup(name);
- if (name_new->name == NULL) {
- free(name_new);
- return NULL;
- }
- if (value != NULL) {
- name_new->value = strdup(value);
- if (name_new->value == NULL) {
- free(name_new);
- return NULL;
- }
- }
- dbg(udev, "adding '%s=%s'\n", name_new->name, name_new->value);
- list_add_tail(&name_new->node, &name_loop->node);
- return name_new;
-}
-
-void util_name_list_cleanup(struct udev *udev, struct list_head *name_list)
-{
- struct util_name_entry *name_loop;
- struct util_name_entry *name_tmp;
-
- list_for_each_entry_safe(name_loop, name_tmp, name_list, node) {
- list_del(&name_loop->node);
- free(name_loop->name);
- free(name_loop->value);
- free(name_loop);
- }
-}
-
int util_log_priority(const char *priority)
{
char *endptr;
diff --git a/udev/lib/libudev.h b/udev/lib/libudev.h
index e71f6b217a..014b53175b 100644
--- a/udev/lib/libudev.h
+++ b/udev/lib/libudev.h
@@ -29,7 +29,9 @@
#endif
struct udev;
+struct udev_list;
struct udev_device;
+struct udev_enumerate;
struct udev_monitor;
/* library context */
@@ -52,6 +54,11 @@ extern void udev_selinux_resetfscreatecon(struct udev *udev);
extern void udev_selinux_setfscreatecon(struct udev *udev, const char *file, unsigned int mode);
extern void udev_selinux_lsetfilecon(struct udev *udev, const char *file, unsigned int mode);
+/* list iteration */
+extern struct udev_list *udev_list_get_next(struct udev_list *list_entry);
+extern const char *udev_list_get_name(struct udev_list *list_entry);
+extern const char *udev_list_get_value(struct udev_list *list_entry);
+
/* sys devices */
extern struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath);
extern struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum);
@@ -64,14 +71,8 @@ extern const char *udev_device_get_subsystem(struct udev_device *udev_device);
extern const char *udev_device_get_syspath(struct udev_device *udev_device);
extern const char *udev_device_get_sysname(struct udev_device *udev_device);
extern const char *udev_device_get_devnode(struct udev_device *udev_device);
-extern int udev_device_get_devlinks(struct udev_device *udev_device,
- int (*cb)(struct udev_device *udev_device,
- const char *value, void *data),
- void *data);
-extern int udev_device_get_properties(struct udev_device *udev_device,
- int (*cb)(struct udev_device *udev_device,
- const char *key, const char *value, void *data),
- void *data);
+extern struct udev_list *udev_device_get_devlinks_list(struct udev_device *udev_device);
+extern struct udev_list *udev_device_get_properties_list(struct udev_device *udev_device);
extern const char *udev_device_get_driver(struct udev_device *udev_device);
extern dev_t udev_device_get_devnum(struct udev_device *udev_device);
extern const char *udev_device_get_action(struct udev_device *udev_device);
@@ -79,9 +80,10 @@ extern unsigned long long int udev_device_get_seqnum(struct udev_device *udev_de
extern const char *udev_device_get_attr_value(struct udev_device *udev_device, const char *attr);
/* sys enumeration */
-extern int udev_enumerate_devices(struct udev *udev, const char *subsystem,
- int (*cb)(struct udev_device *udev_device, void *data),
- void *data);
+extern struct udev_enumerate *udev_enumerate_new_from_subsystems(struct udev *udev, const char *subsystem);
+extern struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_enumerate);
+extern void udev_enumerate_unref(struct udev_enumerate *udev_enumerate);
+extern struct udev_list *udev_enumerate_get_devices_list(struct udev_enumerate *udev_enumerate);
/* udev and kernel device events */
extern struct udev_monitor *udev_monitor_new_from_socket(struct udev *udev, const char *socket_path);
diff --git a/udev/lib/test-libudev.c b/udev/lib/test-libudev.c
index 8afd294a2f..fed4350c09 100644
--- a/udev/lib/test-libudev.c
+++ b/udev/lib/test-libudev.c
@@ -37,22 +37,11 @@ static void log_fn(struct udev *udev,
vprintf(format, args);
}
-static int print_devlinks_cb(struct udev_device *udev_device, const char *value, void *data)
-{
- printf("link: '%s'\n", value);
- return 0;
-}
-
-static int print_properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data)
-{
- printf("property: '%s=%s'\n", key, value);
- return 0;
-}
-
static void print_device(struct udev_device *device)
{
const char *str;
int count;
+ struct udev_list *list;
printf("*** device: %p ***\n", device);
str = udev_device_get_action(device);
@@ -67,10 +56,28 @@ static void print_device(struct udev_device *device)
printf("driver: '%s'\n", str);
str = udev_device_get_devnode(device);
printf("devname: '%s'\n", str);
- count = udev_device_get_devlinks(device, print_devlinks_cb, NULL);
+
+ count = 0;
+ list = udev_device_get_devlinks_list(device);
+ while (list != NULL) {
+ printf("link: '%s'\n", udev_list_get_name(list));
+ count++;
+ list = udev_list_get_next(list);
+ }
printf("found %i links\n", count);
- count = udev_device_get_properties(device, print_properties_cb, NULL);
+
+ count = 0;
+ list = udev_device_get_properties_list(device);
+ while (list != NULL) {
+ printf("property: '%s=%s'\n", udev_list_get_name(list), udev_list_get_value(list));
+ count++;
+ list = udev_list_get_next(list);
+ }
printf("found %i properties\n", count);
+
+ str = udev_device_get_attr_value(device, "dev");
+ printf("attr{dev}: '%s'\n", str);
+
printf("\n");
}
@@ -99,12 +106,14 @@ static int test_device_parents(struct udev *udev, const char *syspath)
if (device == NULL)
return -1;
+ printf("looking at parents\n");
device_parent = device;
do {
print_device(device_parent);
device_parent = udev_device_get_parent(device_parent);
} while (device_parent != NULL);
+ printf("looking at parents again\n");
device_parent = device;
do {
print_device(device_parent);
@@ -129,20 +138,31 @@ static int test_device_devnum(struct udev *udev)
return 0;
}
-static int devices_enum_cb(struct udev_device *device, void *data)
-{
- printf("device: '%s' (%s) '%s'\n",
- udev_device_get_syspath(device),
- udev_device_get_subsystem(device),
- udev_device_get_sysname(device));
- return 0;
-}
-
static int test_enumerate(struct udev *udev, const char *subsystem)
{
- int count;
+ struct udev_enumerate *enumerate;
+ struct udev_list *list;
+ int count = 0;
- count = udev_enumerate_devices(udev, subsystem, devices_enum_cb, NULL);
+ enumerate = udev_enumerate_new_from_subsystems(udev, NULL);
+ if (enumerate == NULL)
+ return -1;
+ list = udev_enumerate_get_devices_list(enumerate);
+ while (list != NULL) {
+ struct udev_device *device;
+
+ device = udev_device_new_from_syspath(udev, udev_list_get_name(list));
+ if (device != NULL) {
+ printf("device: '%s' (%s) '%s'\n",
+ udev_device_get_syspath(device),
+ udev_device_get_subsystem(device),
+ udev_device_get_sysname(device));
+ udev_device_unref(device);
+ count++;
+ }
+ list = udev_list_get_next(list);
+ }
+ udev_enumerate_unref(enumerate);
printf("found %i devices\n\n", count);
return count;
}
diff --git a/udev/udevadm-info.c b/udev/udevadm-info.c
index dbcaaffcdb..6a0425769f 100644
--- a/udev/udevadm-info.c
+++ b/udev/udevadm-info.c
@@ -126,127 +126,43 @@ static int print_device_chain(struct udev_device *device)
return 0;
}
-static int print_record_devlinks_cb(struct udev_device *device, const char *value, void *data)
-{
- size_t len;
-
- len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
- printf("S: %s\n", &value[len+1]);
- return 0;
-}
-
-static int print_record_properties_cb(struct udev_device *device, const char *key, const char *value, void *data)
-{
- printf("E: %s=%s\n", key, value);
- return 0;
-}
-
static void print_record(struct udev_device *device)
{
size_t len;
int i;
+ struct udev_list *list;
printf("P: %s\n", udev_device_get_devpath(device));
+
len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
printf("N: %s\n", &udev_device_get_devnode(device)[len+1]);
+
i = device_get_devlink_priority(device);
if (i != 0)
printf("L: %i\n", i);
+
i = device_get_num_fake_partitions(device);
if (i != 0)
printf("A:%u\n", i);
+
i = device_get_ignore_remove(device);
if (i != 0)
printf("R:%u\n", i);
- udev_device_get_devlinks(device, print_record_devlinks_cb, NULL);
- udev_device_get_properties(device, print_record_properties_cb, NULL);
- printf("\n");
-}
-static int export_all_cb(struct udev_device *device, void *data)
-{
- if (udev_device_get_devnode(device) != NULL)
- print_record(device);
- return 0;
-}
-
-static struct udev_device *lookup_device_by_name(struct udev *udev, const char *name)
-{
- struct udev_device *udev_device = NULL;
- LIST_HEAD(name_list);
- int count;
- struct name_entry *device;
-
- count = udev_db_get_devices_by_name(udev, name, &name_list);
- if (count <= 0)
- goto out;
-
- info(udev, "found %i devices for '%s'\n", count, name);
-
- /* select the device that matches */
- list_for_each_entry(device, &name_list, node) {
- struct udevice *udevice_loop;
- char filename[UTIL_PATH_SIZE];
- struct stat statbuf;
-
- udevice_loop = udev_device_init(udev);
- if (udevice_loop == NULL)
- break;
- if (udev_db_get_device(udevice_loop, device->name) != 0)
- goto next;
- info(udev, "found db entry '%s'\n", device->name);
- /* make sure, we don't get a link of a different device */
- util_strlcpy(filename, udev_get_dev_path(udev), sizeof(filename));
- util_strlcat(filename, "/", sizeof(filename));
- util_strlcat(filename, name, sizeof(filename));
- if (stat(filename, &statbuf) != 0)
- goto next;
- if (major(udevice_loop->devt) > 0 && udevice_loop->devt != statbuf.st_rdev) {
- info(udev, "skip '%s', dev_t doesn't match\n", udevice_loop->name);
- goto next;
- }
- util_strlcpy(filename, udev_get_sys_path(udev), sizeof(filename));
- util_strlcat(filename, udevice_loop->dev->devpath, sizeof(filename));
- udev_device = udev_device_new_from_syspath(udev, filename);
- udev_device_cleanup(udevice_loop);
- break;
-next:
- udev_device_cleanup(udevice_loop);
+ list = udev_device_get_devlinks_list(device);
+ while (list != NULL) {
+ len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
+ printf("S: %s\n", &udev_list_get_name(list)[len+1]);
+ list = udev_list_get_next(list);
}
-out:
- name_list_cleanup(udev, &name_list);
- return udev_device;
-}
-
-static int add_devlink_cb(struct udev_device *device, const char *value, void *data)
-{
- char **links = data;
- if (*links == NULL) {
- *links = strdup(value);
- } else {
- char *str;
-
- asprintf(&str, "%s %s", *links, value);
- free(*links);
- *links = str;
+ list = udev_device_get_properties_list(device);
+ while (list != NULL) {
+ printf("E: %s=%s\n", udev_list_get_name(list), udev_list_get_value(list));
+ list = udev_list_get_next(list);
}
- return 0;
-}
-
-static int add_devlink_noroot_cb(struct udev_device *device, const char *value, void *data)
-{
- size_t len;
-
- len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
- value = &value[len+1];
- return add_devlink_cb(device, value, data);
-}
-static int print_property_cb(struct udev_device *device, const char *key, const char *value, void *data)
-{
- printf("%s=%s\n", key, value);
- return 0;
+ printf("\n");
}
static int stat_device(const char *name, int export, const char *prefix)
@@ -268,6 +184,30 @@ static int stat_device(const char *name, int export, const char *prefix)
return 0;
}
+static int export_devices(struct udev *udev)
+{
+ struct udev_enumerate *enumerate;
+ struct udev_list *list;
+
+ enumerate = udev_enumerate_new_from_subsystems(udev, NULL);
+ if (enumerate == NULL)
+ return -1;
+ list = udev_enumerate_get_devices_list(enumerate);
+ while (list != NULL) {
+ struct udev_device *device;
+
+ device = udev_device_new_from_syspath(udev, udev_list_get_name(list));
+ if (device != NULL) {
+ if (udev_device_get_devnode(device) != NULL)
+ print_record(device);
+ udev_device_unref(device);
+ }
+ list = udev_list_get_next(list);
+ }
+ udev_enumerate_unref(enumerate);
+ return 0;
+}
+
int udevadm_info(struct udev *udev, int argc, char *argv[])
{
struct udev_device *device = NULL;
@@ -276,7 +216,7 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
const char *export_prefix = NULL;
char path[UTIL_PATH_SIZE];
char name[UTIL_PATH_SIZE];
- char *links;
+ struct udev_list *list;
int rc = 0;
static const struct option options[] = {
@@ -313,6 +253,7 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
while (1) {
int option;
+ struct stat statbuf;
option = getopt_long(argc, argv, "aed:n:p:q:rxPVh", options, NULL);
if (option == -1)
@@ -327,12 +268,37 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
goto exit;
}
/* remove /dev if given */
- if (strncmp(optarg, udev_get_dev_path(udev), strlen(udev_get_dev_path(udev))) == 0)
- util_strlcpy(name, &optarg[strlen(udev_get_dev_path(udev))+1], sizeof(name));
- else
+ if (strncmp(optarg, udev_get_dev_path(udev), strlen(udev_get_dev_path(udev))) != 0) {
+ util_strlcpy(name, udev_get_dev_path(udev), sizeof(name));
+ util_strlcat(name, "/", sizeof(name));
+ util_strlcat(name, optarg, sizeof(name));
+ } else {
util_strlcpy(name, optarg, sizeof(name));
+ }
util_remove_trailing_chars(name, '/');
- device = lookup_device_by_name(udev, name);
+ if (stat(name, &statbuf) < 0) {
+ fprintf(stderr, "device node not found\n");
+ rc = 2;
+ goto exit;
+ } else {
+ char type;
+
+ if (S_ISBLK(statbuf.st_mode)) {
+ type = 'b';
+ } else if (S_ISCHR(statbuf.st_mode)) {
+ type = 'c';
+ } else {
+ fprintf(stderr, "device node has wrong file type\n");
+ rc = 2;
+ goto exit;
+ }
+ device = udev_device_new_from_devnum(udev, type, statbuf.st_rdev);
+ if (device == NULL) {
+ fprintf(stderr, "device node not found\n");
+ rc = 2;
+ goto exit;
+ }
+ }
break;
case 'p':
if (device != NULL) {
@@ -349,6 +315,11 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
}
util_remove_trailing_chars(path, '/');
device = udev_device_new_from_syspath(udev, path);
+ if (device == NULL) {
+ fprintf(stderr, "device path not found\n");
+ rc = 2;
+ goto exit;
+ }
break;
case 'q':
action = ACTION_QUERY;
@@ -388,7 +359,7 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
action = ACTION_ATTRIBUTE_WALK;
break;
case 'e':
- udev_enumerate_devices(udev, NULL, export_all_cb, NULL);
+ export_devices(udev);
goto exit;
case 'x':
export = 1;
@@ -445,19 +416,31 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
}
break;
case QUERY_SYMLINK:
- links = NULL;
- if (root)
- udev_device_get_devlinks(device, add_devlink_cb, &links);
- else
- udev_device_get_devlinks(device, add_devlink_noroot_cb, &links);
- printf("%s\n", links);
- free(links);
+ list = udev_device_get_devlinks_list(device);
+ while (list != NULL) {
+ if (root) {
+ printf("%s", udev_list_get_name(list));
+ } else {
+ size_t len;
+
+ len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
+ printf("%s", &udev_list_get_name(list)[len+1]);
+ }
+ list = udev_list_get_next(list);
+ if (list != NULL)
+ printf(" ");
+ }
+ printf("\n");
break;
case QUERY_PATH:
printf("%s\n", udev_device_get_devpath(device));
goto exit;
case QUERY_ENV:
- udev_device_get_properties(device, print_property_cb, NULL);
+ list = udev_device_get_properties_list(device);
+ while (list != NULL) {
+ printf("%s=%s\n", udev_list_get_name(list), udev_list_get_value(list));
+ list = udev_list_get_next(list);
+ }
break;
case QUERY_ALL:
print_record(device);
diff --git a/udev/udevadm-monitor.c b/udev/udevadm-monitor.c
index a798a81626..26efa528af 100644
--- a/udev/udevadm-monitor.c
+++ b/udev/udevadm-monitor.c
@@ -41,18 +41,6 @@ static void asmlinkage sig_handler(int signum)
udev_exit = 1;
}
-static int print_properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data)
-{
- printf("%s=%s\n", key, value);
- return 0;
-}
-
-static void print_properties(struct udev_device *device)
-{
- udev_device_get_properties(device, print_properties_cb, NULL);
- printf("\n");
-}
-
int udevadm_monitor(struct udev *udev, int argc, char *argv[])
{
struct sigaction act;
@@ -178,8 +166,16 @@ int udevadm_monitor(struct udev *udev, int argc, char *argv[])
udev_device_get_action(device),
udev_device_get_devpath(device),
udev_device_get_subsystem(device));
- if (env)
- print_properties(device);
+ if (env) {
+ struct udev_list *list;
+
+ list = udev_device_get_properties_list(device);
+ while (list != NULL) {
+ printf("%s=%s\n", udev_list_get_name(list), udev_list_get_value(list));
+ list = udev_list_get_next(list);
+ }
+ printf("\n");
+ }
udev_device_unref(device);
}
@@ -191,8 +187,16 @@ int udevadm_monitor(struct udev *udev, int argc, char *argv[])
udev_device_get_action(device),
udev_device_get_devpath(device),
udev_device_get_subsystem(device));
- if (env)
- print_properties(device);
+ if (env) {
+ struct udev_list *list;
+
+ list = udev_device_get_properties_list(device);
+ while (list != NULL) {
+ printf("%s=%s\n", udev_list_get_name(list), udev_list_get_value(list));
+ list = udev_list_get_next(list);
+ }
+ printf("\n");
+ }
udev_device_unref(device);
}
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-05 13:17:00 +0000