* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include "config.h"
-
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <dirent.h>
#include <errno.h>
#include <getopt.h>
+#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "udev.h"
-static void print_all_attributes(struct udev *udev, const char *devpath, const char *key)
+static void print_all_attributes(struct udev_device *device, const char *key)
{
- char path[PATH_SIZE];
+ struct udev *udev = udev_device_get_udev(device);
DIR *dir;
struct dirent *dent;
- strlcpy(path, udev_get_sys_path(udev), sizeof(path));
- strlcat(path, devpath, sizeof(path));
-
- dir = opendir(path);
+ dir = opendir(udev_device_get_syspath(device));
if (dir != NULL) {
for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
struct stat statbuf;
- char filename[PATH_SIZE];
- char *attr_value;
- char value[NAME_SIZE];
+ const char *value;
size_t len;
if (dent->d_name[0] == '.')
if (strcmp(dent->d_name, "dev") == 0)
continue;
- strlcpy(filename, path, sizeof(filename));
- strlcat(filename, "/", sizeof(filename));
- strlcat(filename, dent->d_name, sizeof(filename));
- if (lstat(filename, &statbuf) != 0)
+ if (fstatat(dirfd(dir), dent->d_name, &statbuf, AT_SYMLINK_NOFOLLOW) != 0)
continue;
if (S_ISLNK(statbuf.st_mode))
continue;
- attr_value = sysfs_attr_get_value(udev, devpath, dent->d_name);
- if (attr_value == NULL)
+ value = udev_device_get_sysattr_value(device, dent->d_name);
+ if (value == NULL)
continue;
- len = strlcpy(value, attr_value, sizeof(value));
- if(len >= sizeof(value))
- len = sizeof(value) - 1;
dbg(udev, "attr '%s'='%s'(%zi)\n", dent->d_name, value, len);
/* skip nonprintable attributes */
- while (len && isprint(value[len-1]))
+ len = strlen(value);
+ while (len > 0 && isprint(value[len-1]))
len--;
- if (len) {
+ if (len > 0) {
dbg(udev, "attribute value of '%s' non-printable, skip\n", dent->d_name);
continue;
}
printf(" %s{%s}==\"%s\"\n", key, dent->d_name, value);
}
+ closedir(dir);
}
printf("\n");
}
-static int print_device_chain(struct udev *udev, const char *devpath)
+static int print_device_chain(struct udev_device *device)
{
- struct sysfs_device *dev;
-
- dev = sysfs_device_get(udev, devpath);
- if (dev == NULL)
- return -1;
+ struct udev_device *device_parent;
+ const char *str;
printf("\n"
- "Udevinfo starts with the device specified by the devpath and then\n"
+ "Udevadm info starts with the device specified by the devpath and then\n"
"walks up the chain of parent devices. It prints for every device\n"
"found, all possible attributes in the udev rules key format.\n"
"A rule to match, can be composed by the attributes of the device\n"
"and the attributes from one single parent device.\n"
"\n");
- printf(" looking at device '%s':\n", dev->devpath);
- printf(" KERNEL==\"%s\"\n", dev->kernel);
- printf(" SUBSYSTEM==\"%s\"\n", dev->subsystem);
- printf(" DRIVER==\"%s\"\n", dev->driver);
- print_all_attributes(udev, dev->devpath, "ATTR");
-
- /* walk up the chain of devices */
- while (1) {
- dev = sysfs_device_get_parent(udev, dev);
- if (dev == NULL)
+ printf(" looking at device '%s':\n", udev_device_get_devpath(device));
+ printf(" KERNEL==\"%s\"\n", udev_device_get_sysname(device));
+ str = udev_device_get_subsystem(device);
+ if (str == NULL)
+ str = "";
+ printf(" SUBSYSTEM==\"%s\"\n", str);
+ str = udev_device_get_driver(device);
+ if (str == NULL)
+ str = "";
+ printf(" DRIVER==\"%s\"\n", str);
+ print_all_attributes(device, "ATTR");
+
+ device_parent = device;
+ do {
+ device_parent = udev_device_get_parent(device_parent);
+ if (device_parent == NULL)
break;
- printf(" looking at parent device '%s':\n", dev->devpath);
- printf(" KERNELS==\"%s\"\n", dev->kernel);
- printf(" SUBSYSTEMS==\"%s\"\n", dev->subsystem);
- printf(" DRIVERS==\"%s\"\n", dev->driver);
-
- print_all_attributes(udev, dev->devpath, "ATTRS");
- }
+ printf(" looking at parent device '%s':\n", udev_device_get_devpath(device_parent));
+ printf(" KERNELS==\"%s\"\n", udev_device_get_sysname(device_parent));
+ str = udev_device_get_subsystem(device_parent);
+ if (str == NULL)
+ str = "";
+ printf(" SUBSYSTEMS==\"%s\"\n", str);
+ str = udev_device_get_driver(device_parent);
+ if (str == NULL)
+ str = "";
+ printf(" DRIVERS==\"%s\"\n", str);
+ print_all_attributes(device_parent, "ATTRS");
+ } while (device_parent != NULL);
return 0;
}
-static void print_record(struct udevice *udevice)
+static void print_record(struct udev_device *device)
{
- struct name_entry *name_loop;
-
- printf("P: %s\n", udevice->dev->devpath);
- printf("N: %s\n", udevice->name);
- list_for_each_entry(name_loop, &udevice->symlink_list, node)
- printf("S: %s\n", name_loop->name);
- if (udevice->link_priority != 0)
- printf("L: %i\n", udevice->link_priority);
- if (udevice->partitions != 0)
- printf("A:%u\n", udevice->partitions);
- if (udevice->ignore_remove)
- printf("R:%u\n", udevice->ignore_remove);
- list_for_each_entry(name_loop, &udevice->env_list, node)
- printf("E: %s\n", name_loop->name);
-}
+ size_t len;
+ const char *str;
+ int i;
+ struct udev_list_entry *list_entry;
-static void export_db(struct udev *udev)
-{
- LIST_HEAD(name_list);
- struct name_entry *name_loop;
-
- udev_db_get_all_entries(udev, &name_list);
- list_for_each_entry(name_loop, &name_list, node) {
- struct udevice *udevice_db;
-
- udevice_db = udev_device_init(udev);
- if (udevice_db == NULL)
- continue;
- if (udev_db_get_device(udevice_db, name_loop->name) == 0)
- print_record(udevice_db);
- printf("\n");
- udev_device_cleanup(udevice_db);
- }
- name_list_cleanup(udev, &name_list);
-}
+ printf("P: %s\n", udev_device_get_devpath(device));
-static int lookup_device_by_name(struct udev *udev, struct udevice **udevice, const char *name)
-{
- LIST_HEAD(name_list);
- int count;
- struct name_entry *device;
- int rc = -1;
+ len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
+ str = udev_device_get_devnode(device);
+ if (str != NULL)
+ printf("N: %s\n", &str[len+1]);
- count = udev_db_get_devices_by_name(udev, name, &name_list);
- if (count <= 0)
- goto out;
+ i = udev_device_get_devlink_priority(device);
+ if (i != 0)
+ printf("L: %i\n", i);
- info(udev, "found %i devices for '%s'\n", count, name);
+ i = udev_device_get_num_fake_partitions(device);
+ if (i != 0)
+ printf("A:%u\n", i);
- /* select the device that seems to match */
- list_for_each_entry(device, &name_list, node) {
- struct udevice *udevice_loop;
- char filename[PATH_SIZE];
- struct stat statbuf;
+ i = udev_device_get_ignore_remove(device);
+ if (i != 0)
+ printf("R:%u\n", i);
- 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 */
- strlcpy(filename, udev_get_dev_path(udev), sizeof(filename));
- strlcat(filename, "/", sizeof(filename));
- 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;
- }
- rc = 0;
- *udevice = udevice_loop;
- break;
-next:
- udev_device_cleanup(udevice_loop);
+ i = udev_device_get_watch_handle(device);
+ if (i >= 0)
+ printf("W:%u\n", i);
+
+ udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) {
+ len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
+ printf("S: %s\n", &udev_list_entry_get_name(list_entry)[len+1]);
}
-out:
- name_list_cleanup(udev, &name_list);
- return rc;
+
+ udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device))
+ printf("E: %s=%s\n",
+ udev_list_entry_get_name(list_entry),
+ udev_list_entry_get_value(list_entry));
+ printf("\n");
}
static int stat_device(const char *name, int export, const char *prefix)
return 0;
}
+static int export_devices(struct udev *udev)
+{
+ struct udev_enumerate *udev_enumerate;
+ struct udev_list_entry *list_entry;
+
+ udev_enumerate = udev_enumerate_new(udev);
+ if (udev_enumerate == NULL)
+ return -1;
+ udev_enumerate_scan_devices(udev_enumerate);
+ udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(udev_enumerate)) {
+ struct udev_device *device;
+
+ device = udev_device_new_from_syspath(udev, udev_list_entry_get_name(list_entry));
+ if (device != NULL) {
+ print_record(device);
+ udev_device_unref(device);
+ }
+ }
+ udev_enumerate_unref(udev_enumerate);
+ return 0;
+}
+
int udevadm_info(struct udev *udev, int argc, char *argv[])
{
- struct udevice *udevice = NULL;
+ struct udev_device *device = NULL;
int root = 0;
int export = 0;
const char *export_prefix = NULL;
+ char path[UTIL_PATH_SIZE];
+ char name[UTIL_PATH_SIZE];
+ struct udev_list_entry *list_entry;
+ int rc = 0;
static const struct option options[] = {
- { "name", 1, NULL, 'n' },
- { "path", 1, NULL, 'p' },
- { "query", 1, NULL, 'q' },
- { "attribute-walk", 0, NULL, 'a' },
- { "export-db", 0, NULL, 'e' },
- { "root", 0, NULL, 'r' },
- { "device-id-of-file", 1, NULL, 'd' },
- { "export", 0, NULL, 'x' },
- { "export-prefix", 1, NULL, 'P' },
- { "version", 0, NULL, 1 }, /* -V outputs braindead format */
- { "help", 0, NULL, 'h' },
+ { "name", required_argument, NULL, 'n' },
+ { "path", required_argument, NULL, 'p' },
+ { "query", optional_argument, NULL, 'q' },
+ { "attribute-walk", no_argument, NULL, 'a' },
+ { "export-db", no_argument, NULL, 'e' },
+ { "root", no_argument, NULL, 'r' },
+ { "device-id-of-file", required_argument, NULL, 'd' },
+ { "export", no_argument, NULL, 'x' },
+ { "export-prefix", required_argument, NULL, 'P' },
+ { "version", no_argument, NULL, 'V' },
+ { "help", no_argument, NULL, 'h' },
{}
};
QUERY_NAME,
QUERY_PATH,
QUERY_SYMLINK,
- QUERY_ENV,
+ QUERY_PROPERTY,
QUERY_ALL,
} query = QUERY_NONE;
- char path[PATH_SIZE] = "";
- char name[PATH_SIZE] = "";
- struct name_entry *name_loop;
- int rc = 0;
-
while (1) {
int option;
+ struct stat statbuf;
- option = getopt_long(argc, argv, "aed:n:p:q:rxPVh", options, NULL);
+ option = getopt_long(argc, argv, "aed:n:p:q::rxPVh", options, NULL);
if (option == -1)
break;
dbg(udev, "option '%c'\n", option);
switch (option) {
case 'n':
+ if (device != NULL) {
+ fprintf(stderr, "device already specified\n");
+ rc = 2;
+ goto exit;
+ }
/* remove /dev if given */
- if (strncmp(optarg, udev_get_dev_path(udev), strlen(udev_get_dev_path(udev))) == 0)
- strlcpy(name, &optarg[strlen(udev_get_dev_path(udev))+1], sizeof(name));
+ if (strncmp(optarg, udev_get_dev_path(udev), strlen(udev_get_dev_path(udev))) != 0)
+ util_strscpyl(name, sizeof(name), udev_get_dev_path(udev), "/", optarg, NULL);
else
- strlcpy(name, optarg, sizeof(name));
+ util_strscpy(name, sizeof(name), optarg);
util_remove_trailing_chars(name, '/');
- dbg(udev, "name: %s\n", 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':
- /* remove /sys if given */
- if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) == 0)
- strlcpy(path, &optarg[strlen(udev_get_sys_path(udev))], sizeof(path));
+ if (device != NULL) {
+ fprintf(stderr, "device already specified\n");
+ rc = 2;
+ goto exit;
+ }
+ /* add sys dir if needed */
+ if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0)
+ util_strscpyl(path, sizeof(path), udev_get_sys_path(udev), optarg, NULL);
else
- strlcpy(path, optarg, sizeof(path));
+ util_strscpy(path, sizeof(path), optarg);
util_remove_trailing_chars(path, '/');
-
- /* possibly resolve to real devpath */
- if (sysfs_resolve_link(udev, path, sizeof(path)) != 0) {
- char temp[PATH_SIZE];
- char *pos;
-
- /* also check if the parent is a link */
- strlcpy(temp, path, sizeof(temp));
- pos = strrchr(temp, '/');
- if (pos != 0) {
- char tail[PATH_SIZE];
-
- strlcpy(tail, pos, sizeof(tail));
- pos[0] = '\0';
- if (sysfs_resolve_link(udev, temp, sizeof(temp)) == 0) {
- strlcpy(path, temp, sizeof(path));
- strlcat(path, tail, sizeof(path));
- }
- }
+ device = udev_device_new_from_syspath(udev, path);
+ if (device == NULL) {
+ fprintf(stderr, "device path not found\n");
+ rc = 2;
+ goto exit;
}
- dbg(udev, "path: %s\n", path);
break;
case 'q':
action = ACTION_QUERY;
- if (strcmp(optarg, "name") == 0) {
+ if (optarg == NULL || strcmp(optarg, "property") == 0 || strcmp(optarg, "env") == 0) {
+ query = QUERY_PROPERTY;
+ } else if (strcmp(optarg, "name") == 0) {
query = QUERY_NAME;
- break;
- }
- if (strcmp(optarg, "symlink") == 0) {
+ } else if (strcmp(optarg, "symlink") == 0) {
query = QUERY_SYMLINK;
- break;
- }
- if (strcmp(optarg, "path") == 0) {
+ } else if (strcmp(optarg, "path") == 0) {
query = QUERY_PATH;
- break;
- }
- if (strcmp(optarg, "env") == 0) {
- query = QUERY_ENV;
- break;
- }
- if (strcmp(optarg, "all") == 0) {
+ } else if (strcmp(optarg, "all") == 0) {
query = QUERY_ALL;
- break;
+ } else {
+ fprintf(stderr, "unknown query type\n");
+ rc = 3;
+ goto exit;
}
- fprintf(stderr, "unknown query type\n");
- rc = 2;
- goto exit;
+ break;
case 'r':
if (action == ACTION_NONE)
action = ACTION_ROOT;
break;
case 'd':
action = ACTION_DEVICE_ID_FILE;
- strlcpy(name, optarg, sizeof(name));
+ util_strscpy(name, sizeof(name), optarg);
break;
case 'a':
action = ACTION_ATTRIBUTE_WALK;
break;
case 'e':
- export_db(udev);
+ export_devices(udev);
goto exit;
case 'x':
export = 1;
case 'P':
export_prefix = optarg;
break;
- case 1:
- printf("%s\n", VERSION);
- goto exit;
case 'V':
- printf("udevinfo, version %s\n", VERSION);
+ printf("%s\n", VERSION);
goto exit;
case 'h':
printf("Usage: udevadm info OPTIONS\n"
- " --query=<type> query database for the specified value:\n"
+ " --query=<type> query device information:\n"
" name name of device node\n"
" symlink pointing to node\n"
- " path sysfs device path\n"
- " env the device related imported environment\n"
+ " path sys device path\n"
+ " property the device properties\n"
" all all values\n"
- " --path=<devpath> sysfs device path used for query or chain\n"
- " --name=<name> node or symlink name used for query\n"
- " --root prepend to query result or print udev_root\n"
- " --attribute-walk print all key matches while walking along chain\n"
+ " --path=<syspath> sys device path used for query or attribute walk\n"
+ " --name=<name> node or symlink name used for query or attribute walk\n"
+ " --root prepend dev directory to path names\n"
+ " --attribute-walk print all key matches while walking along the chain\n"
" of parent devices\n"
- " --device-id-of-file=<file> print major/minor of underlying device\n"
+ " --device-id-of-file=<file> print major:minor of device containing this file\n"
" --export-db export the content of the udev database\n"
- " --help print this text\n"
- "\n");
+ " --help\n\n");
goto exit;
default:
goto exit;
}
}
- /* run action */
switch (action) {
case ACTION_QUERY:
- /* needs devpath or node/symlink name for query */
- if (path[0] != '\0') {
- udevice = udev_device_init(udev);
- if (udevice == NULL) {
- rc = 1;
- goto exit;
- }
- if (udev_db_get_device(udevice, path) != 0) {
- fprintf(stderr, "no record for '%s' in database\n", path);
- rc = 3;
- goto exit;
- }
- } else if (name[0] != '\0') {
- if (lookup_device_by_name(udev, &udevice, name) != 0) {
- fprintf(stderr, "node name not found\n");
- rc = 4;
- goto exit;
- }
- } else {
- fprintf(stderr, "query needs --path or node --name specified\n");
+ if (device == NULL) {
+ fprintf(stderr, "query needs a valid device specified by --path= or --name=\n");
rc = 4;
goto exit;
}
switch(query) {
case QUERY_NAME:
- if (root)
- printf("%s/%s\n", udev_get_dev_path(udev), udevice->name);
- else
- printf("%s\n", udevice->name);
+ if (root) {
+ printf("%s\n", udev_device_get_devnode(device));
+ } else {
+ size_t len;
+ const char *node;
+
+ len = strlen(udev_get_dev_path(udev));
+ node = udev_device_get_devnode(device);
+ if (node == NULL) {
+ fprintf(stderr, "no device node found\n");
+ rc = 5;
+ goto exit;
+ }
+ printf("%s\n", &udev_device_get_devnode(device)[len+1]);
+ }
break;
case QUERY_SYMLINK:
- list_for_each_entry(name_loop, &udevice->symlink_list, node) {
- char c = name_loop->node.next != &udevice->symlink_list ? ' ' : '\n';
-
- if (root)
- printf("%s/%s%c", udev_get_dev_path(udev), name_loop->name, c);
- else
- printf("%s%c", name_loop->name, c);
+ list_entry = udev_device_get_devlinks_list_entry(device);
+ while (list_entry != NULL) {
+ if (root) {
+ printf("%s", udev_list_entry_get_name(list_entry));
+ } else {
+ size_t len;
+
+ len = strlen(udev_get_dev_path(udev_device_get_udev(device)));
+ printf("%s", &udev_list_entry_get_name(list_entry)[len+1]);
+ }
+ list_entry = udev_list_entry_get_next(list_entry);
+ if (list_entry != NULL)
+ printf(" ");
}
+ printf("\n");
break;
case QUERY_PATH:
- printf("%s\n", udevice->dev->devpath);
+ printf("%s\n", udev_device_get_devpath(device));
goto exit;
- case QUERY_ENV:
- list_for_each_entry(name_loop, &udevice->env_list, node)
- printf("%s\n", name_loop->name);
+ case QUERY_PROPERTY:
+ list_entry = udev_device_get_properties_list_entry(device);
+ while (list_entry != NULL) {
+ printf("%s=%s\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry));
+ list_entry = udev_list_entry_get_next(list_entry);
+ }
break;
case QUERY_ALL:
- print_record(udevice);
+ print_record(device);
break;
default:
fprintf(stderr, "unknown query type\n");
}
break;
case ACTION_ATTRIBUTE_WALK:
- if (path[0] != '\0') {
- if (print_device_chain(udev, path) != 0) {
- fprintf(stderr, "no valid sysfs device found\n");
- rc = 4;
- goto exit;
- }
- } else if (name[0] != '\0') {
- if (lookup_device_by_name(udev, &udevice, name) != 0) {
- fprintf(stderr, "node name not found\n");
- rc = 4;
- goto exit;
- }
- if (print_device_chain(udev, udevice->dev->devpath) != 0) {
- fprintf(stderr, "no valid sysfs device found\n");
- rc = 4;
- goto exit;
- }
- } else {
- fprintf(stderr, "attribute walk needs --path or node --name specified\n");
- rc = 5;
+ if (device == NULL) {
+ fprintf(stderr, "query needs a valid device specified by --path= or --name=\n");
+ rc = 4;
goto exit;
}
+ print_device_chain(device);
break;
case ACTION_DEVICE_ID_FILE:
if (stat_device(name, export, export_prefix) != 0)
- rc = 6;
+ rc = 1;
break;
case ACTION_ROOT:
printf("%s\n", udev_get_dev_path(udev));
}
exit:
- udev_device_cleanup(udevice);
+ udev_device_unref(device);
return rc;
}
~ianmdlvl / elogind.git / blobdiff