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-rw-r--r--udev/lib/exported_symbols2
-rw-r--r--udev/lib/libudev-device.c59
-rw-r--r--udev/lib/libudev-enumerate.c36
-rw-r--r--udev/lib/libudev-monitor.c8
-rw-r--r--udev/lib/libudev-private.h9
-rw-r--r--udev/lib/libudev-util.c32
-rw-r--r--udev/lib/libudev.h4
-rw-r--r--udev/lib/test-libudev.c35
8 files changed, 99 insertions, 86 deletions
diff --git a/udev/lib/exported_symbols b/udev/lib/exported_symbols
index aa3854d2aa..ab12ff57f1 100644
--- a/udev/lib/exported_symbols
+++ b/udev/lib/exported_symbols
@@ -7,7 +7,7 @@ udev_get_log_priority
udev_set_log_priority
udev_get_sys_path
udev_get_dev_path
-udev_device_new_from_devpath
+udev_device_new_from_syspath
udev_device_get_parent
udev_device_ref
udev_device_unref
diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
index 918398b793..782d662549 100644
--- a/udev/lib/libudev-device.c
+++ b/udev/lib/libudev-device.c
@@ -56,14 +56,14 @@ struct udev_device {
struct list_head attr_list;
};
-static size_t devpath_to_db_path(struct udev *udev, const char *devpath, char *filename, size_t len)
+static size_t syspath_to_db_path(struct udev_device *udev_device, char *filename, size_t len)
{
size_t start;
/* translate to location of db file */
- util_strlcpy(filename, udev_get_dev_path(udev), len);
+ util_strlcpy(filename, udev_get_dev_path(udev_device->udev), len);
start = util_strlcat(filename, "/.udev/db/", len);
- util_strlcat(filename, devpath, len);
+ util_strlcat(filename, udev_device->devpath, len);
return util_path_encode(&filename[start], len - start);
}
@@ -75,7 +75,7 @@ static int device_read_db(struct udev_device *udev_device)
FILE *f;
int rc = 0;
- devpath_to_db_path(udev_device->udev, udev_device->devpath, filename, sizeof(filename));
+ syspath_to_db_path(udev_device, filename, sizeof(filename));
if (lstat(filename, &stats) != 0) {
info(udev_device->udev, "no db file to read %s: %s\n", filename, strerror(errno));
@@ -172,20 +172,20 @@ struct udev_device *device_init(struct udev *udev)
}
/**
- * udev_device_new_from_devpath:
+ * udev_device_new_from_syspath:
* @udev: udev library context
- * @devpath: sys device path
+ * @syspath: sys device path including sys directory
*
- * Create new udev device, and fill in information from the sysfs
- * device and the udev database entry. The devpath must not contain
- * the sysfs mount path, and must contain a leading '/'.
+ * Create new udev device, and fill in information from the sys
+ * device and the udev database entry. The sypath is the absolute
+ * path to the device, including the sys mount point.
*
* The initial refcount is 1, and needs to be decremented to
* release the ressources of the udev device.
*
* Returns: a new udev device, or #NULL, if it does not exist
**/
-struct udev_device *udev_device_new_from_devpath(struct udev *udev, const char *devpath)
+struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath)
{
char path[UTIL_PATH_SIZE];
struct stat statbuf;
@@ -193,14 +193,13 @@ struct udev_device *udev_device_new_from_devpath(struct udev *udev, const char *
if (udev == NULL)
return NULL;
- if (devpath == NULL)
+ if (syspath == NULL)
return NULL;
- util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
- util_strlcat(path, devpath, sizeof(path));
+ util_strlcpy(path, syspath, sizeof(path));
util_strlcat(path, "/uevent", sizeof(path));
if (stat(path, &statbuf) != 0) {
- info(udev, "not a device :%s\n", devpath);
+ info(udev, "not a device :%s\n", syspath);
return NULL;
}
@@ -209,9 +208,9 @@ struct udev_device *udev_device_new_from_devpath(struct udev *udev, const char *
return NULL;
/* resolve possible symlink to real path */
- util_strlcpy(path, devpath, sizeof(path));
+ util_strlcpy(path, syspath, sizeof(path));
util_resolve_sys_link(udev, path, sizeof(path));
- device_set_devpath(udev_device, path);
+ device_set_syspath(udev_device, path);
info(udev, "device %p has devpath '%s'\n", udev_device, udev_device_get_devpath(udev_device));
if (device_read_db(udev_device) >= 0)
@@ -228,23 +227,23 @@ static struct udev_device *device_new_from_parent(struct udev_device *udev_devic
if (udev_device == NULL)
return NULL;
- util_strlcpy(path, udev_device_get_devpath(udev_device), sizeof(path));
+ util_strlcpy(path, udev_device->syspath, sizeof(path));
while (1) {
pos = strrchr(path, '/');
if (pos == path || pos == NULL)
break;
pos[0] = '\0';
- udev_device_parent = udev_device_new_from_devpath(udev_device->udev, path);
+ udev_device_parent = udev_device_new_from_syspath(udev_device->udev, path);
if (udev_device_parent != NULL)
return udev_device_parent;
}
- /* follow "device" link in deprecated sysfs /sys/class/ layout */
+ /* follow "device" link in deprecated sys /sys/class/ layout */
if (strncmp(udev_device->devpath, "/class/", 7) == 0) {
- util_strlcpy(path, udev_device->devpath, sizeof(path));
+ util_strlcpy(path, udev_device->syspath, sizeof(path));
util_strlcat(path, "/device", sizeof(path));
if (util_resolve_sys_link(udev_device->udev, path, sizeof(path)) == 0) {
- udev_device_parent = udev_device_new_from_devpath(udev_device->udev, path);
+ udev_device_parent = udev_device_new_from_syspath(udev_device->udev, path);
if (udev_device_parent != NULL)
return udev_device_parent;
}
@@ -398,7 +397,7 @@ const char *udev_device_get_subsystem(struct udev_device *udev_device)
return udev_device->subsystem;
/* read "subsytem" link */
- if (util_get_sys_subsystem(udev_device->udev, udev_device->devpath, subsystem, sizeof(subsystem)) == 0) {
+ if (util_get_sys_subsystem(udev_device->udev, udev_device->syspath, subsystem, sizeof(subsystem)) == 0) {
udev_device->subsystem = strdup(subsystem);
return udev_device->subsystem;
}
@@ -490,7 +489,7 @@ const char *udev_device_get_driver(struct udev_device *udev_device)
return NULL;
if (udev_device->driver != NULL)
return udev_device->driver;
- if (util_get_sys_driver(udev_device->udev, udev_device->devpath, driver, sizeof(driver)) < 2)
+ if (util_get_sys_driver(udev_device->udev, udev_device->syspath, driver, sizeof(driver)) < 2)
return NULL;
udev_device->driver = strdup(driver);
return udev_device->driver;
@@ -592,14 +591,18 @@ const char *udev_device_get_attr_value(struct udev_device *udev_device, const ch
out:
return val;
}
-int device_set_devpath(struct udev_device *udev_device, const char *devpath)
+int device_set_syspath(struct udev_device *udev_device, const char *syspath)
{
- if (asprintf(&udev_device->syspath, "%s%s", udev_get_sys_path(udev_device->udev), devpath) < 0)
+ const char *pos;
+
+ udev_device->syspath = strdup(syspath);
+ if (udev_device->syspath == NULL)
return -ENOMEM;
udev_device->devpath = &udev_device->syspath[strlen(udev_get_sys_path(udev_device->udev))];
- udev_device->sysname = strrchr(udev_device->syspath, '/');
- if (udev_device->sysname != NULL)
- udev_device->sysname = &udev_device->sysname[1];
+ pos = strrchr(udev_device->syspath, '/');
+ if (pos == NULL)
+ return -EINVAL;
+ udev_device->sysname = &pos[1];
return 0;
}
diff --git a/udev/lib/libudev-enumerate.c b/udev/lib/libudev-enumerate.c
index 95a407652a..458be5861a 100644
--- a/udev/lib/libudev-enumerate.c
+++ b/udev/lib/libudev-enumerate.c
@@ -38,9 +38,8 @@ static int devices_scan_subsystem(struct udev *udev,
char path[UTIL_PATH_SIZE];
DIR *dir;
struct dirent *dent;
- size_t len;
- len = util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
+ util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
util_strlcat(path, basedir, sizeof(path));
util_strlcat(path, "/", sizeof(path));
util_strlcat(path, subsystem, sizeof(path));
@@ -50,15 +49,15 @@ static int devices_scan_subsystem(struct udev *udev,
if (dir == NULL)
return -1;
for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
- char devpath[UTIL_PATH_SIZE];
+ char syspath[UTIL_PATH_SIZE];
if (dent->d_name[0] == '.')
continue;
- util_strlcpy(devpath, &path[len], sizeof(devpath));
- util_strlcat(devpath, "/", sizeof(devpath));
- util_strlcat(devpath, dent->d_name, sizeof(devpath));
- util_resolve_sys_link(udev, devpath, sizeof(devpath));
- util_name_list_add(udev, device_list, devpath, NULL, 1);
+ util_strlcpy(syspath, path, sizeof(syspath));
+ 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);
}
closedir(dir);
return 0;
@@ -89,27 +88,30 @@ static int devices_scan_subsystems(struct udev *udev,
return 0;
}
-static int devices_delay(struct udev *udev, const char *devpath)
+static int devices_delay(struct udev *udev, const char *syspath)
{
static const char *delay_device_list[] = {
"/block/md",
"/block/dm-",
NULL
};
+ size_t len;
int i;
+ len = strlen(udev_get_sys_path(udev));
+
for (i = 0; delay_device_list[i] != NULL; i++) {
- if (strstr(devpath, delay_device_list[i]) != NULL) {
- info(udev, "delaying: %s\n", devpath);
+ if (strstr(&syspath[len], delay_device_list[i]) != NULL) {
+ info(udev, "delaying: %s\n", syspath);
return 1;
}
}
return 0;
}
-static int devices_call(struct udev *udev, const char *devpath,
+static int devices_call(struct udev *udev, const char *syspath,
int (*cb)(struct udev *udev,
- const char *devpath, const char *subsystem, const char *name,
+ const char *syspath, const char *subsystem, const char *name,
void *data),
void *data,
int *cb_rc)
@@ -117,14 +119,14 @@ static int devices_call(struct udev *udev, const char *devpath,
char subsystem[UTIL_PATH_SIZE];
const char *name;
- name = strrchr(devpath, '/');
+ name = strrchr(syspath, '/');
if (name == NULL)
return -1;
name++;
- if (util_get_sys_subsystem(udev, devpath, subsystem, sizeof(subsystem)) < 2)
+ if (util_get_sys_subsystem(udev, syspath, subsystem, sizeof(subsystem)) < 2)
return -1;
- *cb_rc = cb(udev, devpath, subsystem, name, data);
+ *cb_rc = cb(udev, syspath, subsystem, name, data);
return 0;
}
@@ -143,7 +145,7 @@ static int devices_call(struct udev *udev, const char *devpath,
**/
int udev_enumerate_devices(struct udev *udev, const char *subsystem,
int (*cb)(struct udev *udev,
- const char *devpath, const char *subsystem, const char *name, void *data),
+ const char *syspath, const char *subsystem, const char *name, void *data),
void *data)
{
char base[UTIL_PATH_SIZE];
diff --git a/udev/lib/libudev-monitor.c b/udev/lib/libudev-monitor.c
index 8e9cf2d0eb..f61ddb0b53 100644
--- a/udev/lib/libudev-monitor.c
+++ b/udev/lib/libudev-monitor.c
@@ -302,7 +302,11 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito
bufpos += keylen + 1;
if (strncmp(key, "DEVPATH=", 8) == 0) {
- device_set_devpath(udev_device, &key[8]);
+ char path[UTIL_PATH_SIZE];
+
+ util_strlcpy(path, udev_get_sys_path(udev_monitor->udev), sizeof(path));
+ util_strlcat(path, &key[8], sizeof(path));
+ device_set_syspath(udev_device, path);
} else if (strncmp(key, "SUBSYSTEM=", 10) == 0) {
device_set_subsystem(udev_device, &key[10]);
} else if (strncmp(key, "DEVNAME=", 8) == 0) {
@@ -336,6 +340,8 @@ struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monito
} else if (strncmp(key, "TIMEOUT=", 8) == 0) {
device_set_timeout(udev_device, strtoull(&key[8], NULL, 10));
}
+ if (strncmp(key, "PHYSDEV", 7) == 0)
+ continue;
device_add_property_from_string(udev_device, key);
}
device_set_devnum(udev_device, makedev(maj, min));
diff --git a/udev/lib/libudev-private.h b/udev/lib/libudev-private.h
index f28bd9acfc..1756be5f25 100644
--- a/udev/lib/libudev-private.h
+++ b/udev/lib/libudev-private.h
@@ -55,7 +55,7 @@ extern const char *udev_get_rules_path(struct udev *udev);
extern int udev_get_run(struct udev *udev);
/* libudev-device */
-extern int device_set_devpath(struct udev_device *udev_device, const char *devpath);
+extern int device_set_syspath(struct udev_device *udev_device, const char *syspath);
extern int device_set_subsystem(struct udev_device *udev_device, const char *subsystem);
extern int device_set_devname(struct udev_device *udev_device, const char *devname);
extern int device_add_devlink(struct udev_device *udev_device, const char *devlink);
@@ -114,9 +114,9 @@ struct util_name_entry {
char *value;
int *i;
};
-extern ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size);
-extern ssize_t util_get_sys_driver(struct udev *udev, const char *devpath, char *driver, size_t size);
-extern int util_resolve_sys_link(struct udev *udev, char *devpath, size_t size);
+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);
@@ -127,5 +127,4 @@ extern void util_remove_trailing_chars(char *path, char c);
extern size_t util_strlcpy(char *dst, const char *src, size_t size);
extern size_t util_strlcat(char *dst, const char *src, size_t size);
extern int util_replace_chars(char *str, const char *white);
-extern char *util_sysattr_get_value(struct udev *udev, const char *devpath, const char *attr_name);
#endif
diff --git a/udev/lib/libudev-util.c b/udev/lib/libudev-util.c
index 50eacdd37d..7053a2f825 100644
--- a/udev/lib/libudev-util.c
+++ b/udev/lib/libudev-util.c
@@ -33,14 +33,13 @@
#include "libudev.h"
#include "libudev-private.h"
-static ssize_t get_sys_link(struct udev *udev, const char *slink, const char *devpath, char *subsystem, size_t size)
+static ssize_t get_sys_link(struct udev *udev, const char *slink, const char *syspath, char *subsystem, size_t size)
{
char path[UTIL_PATH_SIZE];
ssize_t len;
const char *pos;
- util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
- util_strlcat(path, devpath, sizeof(path));
+ util_strlcpy(path, syspath, sizeof(path));
util_strlcat(path, "/", sizeof(path));
util_strlcat(path, slink, sizeof(path));
len = readlink(path, path, sizeof(path));
@@ -54,46 +53,43 @@ static ssize_t get_sys_link(struct udev *udev, const char *slink, const char *de
return util_strlcpy(subsystem, pos, size);
}
-ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size)
+ssize_t util_get_sys_subsystem(struct udev *udev, const char *syspath, char *subsystem, size_t size)
{
- return get_sys_link(udev, "subsystem", devpath, subsystem, size);
+ return get_sys_link(udev, "subsystem", syspath, subsystem, size);
}
-ssize_t util_get_sys_driver(struct udev *udev, const char *devpath, char *driver, size_t size)
+ssize_t util_get_sys_driver(struct udev *udev, const char *syspath, char *driver, size_t size)
{
- return get_sys_link(udev, "driver", devpath, driver, size);
+ return get_sys_link(udev, "driver", syspath, driver, size);
}
-int util_resolve_sys_link(struct udev *udev, char *devpath, size_t size)
+int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size)
{
- char link_path[UTIL_PATH_SIZE];
char link_target[UTIL_PATH_SIZE];
int len;
int i;
int back;
- util_strlcpy(link_path, udev_get_sys_path(udev), sizeof(link_path));
- util_strlcat(link_path, devpath, sizeof(link_path));
- len = readlink(link_path, link_target, sizeof(link_target));
+ len = readlink(syspath, link_target, sizeof(link_target));
if (len <= 0)
return -1;
link_target[len] = '\0';
- dbg(udev, "path link '%s' points to '%s'\n", devpath, link_target);
+ dbg(udev, "path link '%s' points to '%s'\n", syspath, link_target);
for (back = 0; strncmp(&link_target[back * 3], "../", 3) == 0; back++)
;
- dbg(udev, "base '%s', tail '%s', back %i\n", devpath, &link_target[back * 3], back);
+ dbg(udev, "base '%s', tail '%s', back %i\n", syspath, &link_target[back * 3], back);
for (i = 0; i <= back; i++) {
- char *pos = strrchr(devpath, '/');
+ char *pos = strrchr(syspath, '/');
if (pos == NULL)
return -1;
pos[0] = '\0';
}
- dbg(udev, "after moving back '%s'\n", devpath);
- util_strlcat(devpath, "/", size);
- util_strlcat(devpath, &link_target[back * 3], size);
+ dbg(udev, "after moving back '%s'\n", syspath);
+ util_strlcat(syspath, "/", size);
+ util_strlcat(syspath, &link_target[back * 3], size);
return 0;
}
diff --git a/udev/lib/libudev.h b/udev/lib/libudev.h
index 05f23e1705..6996b47fa3 100644
--- a/udev/lib/libudev.h
+++ b/udev/lib/libudev.h
@@ -45,7 +45,7 @@ extern void udev_selinux_setfscreatecon(struct udev *udev, const char *file, uns
extern void udev_selinux_lsetfilecon(struct udev *udev, const char *file, unsigned int mode);
struct udev_device;
-extern struct udev_device *udev_device_new_from_devpath(struct udev *udev, const char *devpath);
+extern struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath);
extern struct udev_device *udev_device_get_parent(struct udev_device *udev_device);
extern struct udev_device *udev_device_ref(struct udev_device *udev_device);
extern void udev_device_unref(struct udev_device *udev_device);
@@ -71,7 +71,7 @@ extern const char *udev_device_get_attr_value(struct udev_device *udev_device, c
extern int udev_enumerate_devices(struct udev *udev, const char *subsystem,
int (*cb)(struct udev *udev,
- const char *devpath, const char *subsystem, const char *name, void *data),
+ const char *syspath, const char *subsystem, const char *name, void *data),
void *data);
struct udev_monitor;
diff --git a/udev/lib/test-libudev.c b/udev/lib/test-libudev.c
index b30117627f..4dcc80a141 100644
--- a/udev/lib/test-libudev.c
+++ b/udev/lib/test-libudev.c
@@ -56,14 +56,14 @@ static void print_device(struct udev_device *device)
int count;
printf("*** device: %p ***\n", device);
+ str = udev_device_get_syspath(device);
+ printf("syspath: '%s'\n", str);
str = udev_device_get_devpath(device);
printf("devpath: '%s'\n", str);
str = udev_device_get_subsystem(device);
printf("subsystem: '%s'\n", str);
str = udev_device_get_driver(device);
printf("driver: '%s'\n", str);
- str = udev_device_get_syspath(device);
- printf("syspath: '%s'\n", str);
str = udev_device_get_devname(device);
printf("devname: '%s'\n", str);
count = udev_device_get_devlinks(device, print_devlinks_cb, NULL);
@@ -73,12 +73,12 @@ static void print_device(struct udev_device *device)
printf("\n");
}
-static int test_device(struct udev *udev, const char *devpath)
+static int test_device(struct udev *udev, const char *syspath)
{
struct udev_device *device;
- printf("looking at device: %s\n", devpath);
- device = udev_device_new_from_devpath(udev, devpath);
+ printf("looking at device: %s\n", syspath);
+ device = udev_device_new_from_syspath(udev, syspath);
if (device == NULL) {
printf("no device\n");
return -1;
@@ -88,13 +88,13 @@ static int test_device(struct udev *udev, const char *devpath)
return 0;
}
-static int test_device_parents(struct udev *udev, const char *devpath)
+static int test_device_parents(struct udev *udev, const char *syspath)
{
struct udev_device *device;
struct udev_device *device_parent;
- printf("looking at device: %s\n", devpath);
- device = udev_device_new_from_devpath(udev, devpath);
+ printf("looking at device: %s\n", syspath);
+ device = udev_device_new_from_syspath(udev, syspath);
if (device == NULL)
return -1;
@@ -185,7 +185,7 @@ int main(int argc, char *argv[], char *envp[])
{
struct udev *udev = NULL;
static const struct option options[] = {
- { "devpath", 1, NULL, 'p' },
+ { "syspath", 1, NULL, 'p' },
{ "subsystem", 1, NULL, 's' },
{ "socket", 1, NULL, 'S' },
{ "debug", 0, NULL, 'd' },
@@ -193,9 +193,10 @@ int main(int argc, char *argv[], char *envp[])
{ "version", 0, NULL, 'V' },
{}
};
- const char *devpath = "/devices/virtual/mem/null";
+ const char *syspath = "/devices/virtual/mem/null";
const char *subsystem = NULL;
const char *socket = "@/org/kernel/udev/monitor";
+ char path[1024];
const char *str;
udev = udev_new();
@@ -216,7 +217,7 @@ int main(int argc, char *argv[], char *envp[])
switch (option) {
case 'p':
- devpath = optarg;
+ syspath = optarg;
break;
case 's':
subsystem = optarg;
@@ -229,7 +230,7 @@ int main(int argc, char *argv[], char *envp[])
udev_set_log_priority(udev, LOG_INFO);
break;
case 'h':
- printf("--debug --devpath= --subsystem= --socket= --help\n");
+ printf("--debug --syspath= --subsystem= --socket= --help\n");
goto out;
case 'V':
printf("%s\n", VERSION);
@@ -244,8 +245,14 @@ int main(int argc, char *argv[], char *envp[])
str = udev_get_dev_path(udev);
printf("dev_path: '%s'\n", str);
- test_device(udev, devpath);
- test_device_parents(udev, devpath);
+ /* add sys path if needed */
+ if (strncmp(syspath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0) {
+ snprintf(path, sizeof(path), "%s%s", udev_get_sys_path(udev), syspath);
+ syspath = path;
+ }
+
+ test_device(udev, syspath);
+ test_device_parents(udev, syspath);
test_enumerate(udev, subsystem);
test_monitor(udev, socket);
out:
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-05 00:06:53 +0000