/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright © 2004-2009 Kay Sievers <kay@vrfy.org>
- *
- */
#include <ctype.h>
#include <errno.h>
#include <sys/stat.h>
#include <unistd.h>
+#include "sd-device.h"
+
+#include "alloc-util.h"
+#include "device-enumerator-private.h"
+#include "device-private.h"
+#include "device-util.h"
#include "dirent-util.h"
#include "fd-util.h"
#include "string-util.h"
-#include "udev-util.h"
-#include "udev.h"
+#include "udevadm.h"
#include "udevadm-util.h"
+typedef enum ActionType {
+ ACTION_QUERY,
+ ACTION_ATTRIBUTE_WALK,
+ ACTION_DEVICE_ID_FILE,
+} ActionType;
+
+typedef enum QueryType {
+ QUERY_NAME,
+ QUERY_PATH,
+ QUERY_SYMLINK,
+ QUERY_PROPERTY,
+ QUERY_ALL,
+} QueryType;
+
+static bool arg_root = false;
+static bool arg_export = false;
+static const char *arg_export_prefix = NULL;
+
static bool skip_attribute(const char *name) {
static const char* const skip[] = {
"uevent",
"subsystem",
"module",
};
- unsigned int i;
+ unsigned i;
for (i = 0; i < ELEMENTSOF(skip); i++)
if (streq(name, skip[i]))
return false;
}
-static void print_all_attributes(struct udev_device *device, const char *key) {
- struct udev_list_entry *sysattr;
+static void print_all_attributes(sd_device *device, const char *key) {
+ const char *name, *value;
- udev_list_entry_foreach(sysattr, udev_device_get_sysattr_list_entry(device)) {
- const char *name;
- const char *value;
+ FOREACH_DEVICE_PROPERTY(device, name, value) {
size_t len;
- name = udev_list_entry_get_name(sysattr);
if (skip_attribute(name))
continue;
- value = udev_device_get_sysattr_value(device, name);
- if (value == NULL)
- continue;
-
/* skip any values that look like a path */
if (value[0] == '/')
continue;
printf(" %s{%s}==\"%s\"\n", key, name, value);
}
- printf("\n");
+ puts("");
}
-static int print_device_chain(struct udev_device *device) {
- struct udev_device *device_parent;
+static int print_device_chain(sd_device *device) {
+ sd_device *child, *parent;
const char *str;
printf("\n"
"and the attributes from one single parent device.\n"
"\n");
- 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)
+ (void) sd_device_get_devpath(device, &str);
+ printf(" looking at device '%s':\n", str);
+ (void) sd_device_get_sysname(device, &str);
+ printf(" KERNEL==\"%s\"\n", str);
+ if (sd_device_get_subsystem(device, &str) < 0)
str = "";
printf(" SUBSYSTEM==\"%s\"\n", str);
- str = udev_device_get_driver(device);
- if (str == NULL)
+ if (sd_device_get_driver(device, &str) < 0)
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", 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)
+ for (child = device; sd_device_get_parent(child, &parent) >= 0; child = parent) {
+ (void) sd_device_get_devpath(parent, &str);
+ printf(" looking at parent device '%s':\n", str);
+ (void) sd_device_get_sysname(parent, &str);
+ printf(" KERNELS==\"%s\"\n", str);
+ if (sd_device_get_subsystem(parent, &str) < 0)
str = "";
printf(" SUBSYSTEMS==\"%s\"\n", str);
- str = udev_device_get_driver(device_parent);
- if (str == NULL)
+ if (sd_device_get_driver(parent, &str) < 0)
str = "";
printf(" DRIVERS==\"%s\"\n", str);
- print_all_attributes(device_parent, "ATTRS");
- } while (device_parent != NULL);
+ print_all_attributes(parent, "ATTRS");
+ }
return 0;
}
-static void print_record(struct udev_device *device) {
- const char *str;
+static int print_record(sd_device *device) {
+ const char *str, *val;
int i;
- struct udev_list_entry *list_entry;
- printf("P: %s\n", udev_device_get_devpath(device));
+ (void) sd_device_get_devpath(device, &str);
+ printf("P: %s\n", str);
- str = udev_device_get_devnode(device);
- if (str != NULL)
- printf("N: %s\n", str + STRLEN("/dev/"));
+ if (sd_device_get_devname(device, &str) >= 0) {
+ assert_se(val = path_startswith(str, "/dev/"));
+ printf("N: %s\n", val);
+ }
- i = udev_device_get_devlink_priority(device);
- if (i != 0)
+ if (device_get_devlink_priority(device, &i) >= 0)
printf("L: %i\n", i);
- udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device))
- printf("S: %s\n",
- udev_list_entry_get_name(list_entry) + STRLEN("/dev/"));
+ FOREACH_DEVICE_DEVLINK(device, str) {
+ assert_se(val = path_startswith(str, "/dev/"));
+ printf("S: %s\n", val);
+ }
+
+ FOREACH_DEVICE_PROPERTY(device, str, val)
+ printf("E: %s=%s\n", str, val);
- 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");
+ puts("");
+ return 0;
}
static int stat_device(const char *name, bool export, const char *prefix) {
return -errno;
if (export) {
- if (prefix == NULL)
+ if (!prefix)
prefix = "INFO_";
printf("%sMAJOR=%u\n"
"%sMINOR=%u\n",
return 0;
}
-static int export_devices(struct udev *udev) {
- _cleanup_(udev_enumerate_unrefp) struct udev_enumerate *udev_enumerate;
- struct udev_list_entry *list_entry;
+static int export_devices(void) {
+ _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
+ sd_device *d;
+ int r;
- udev_enumerate = udev_enumerate_new(udev);
- if (udev_enumerate == NULL)
- return -ENOMEM;
+ r = sd_device_enumerator_new(&e);
+ if (r < 0)
+ return r;
- udev_enumerate_scan_devices(udev_enumerate);
- udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(udev_enumerate)) {
- _cleanup_(udev_device_unrefp) struct udev_device *device;
+ r = sd_device_enumerator_allow_uninitialized(e);
+ if (r < 0)
+ return r;
- device = udev_device_new_from_syspath(udev, udev_list_entry_get_name(list_entry));
- if (device != NULL)
- print_record(device);
- }
+ r = device_enumerator_scan_devices(e);
+ if (r < 0)
+ return r;
+
+ FOREACH_DEVICE_AND_SUBSYSTEM(e, d)
+ print_record(d);
return 0;
}
if ((stats.st_mode & mask) != 0)
continue;
if (S_ISDIR(stats.st_mode)) {
- _cleanup_closedir_ DIR *dir2;
+ _cleanup_closedir_ DIR *dir2 = NULL;
dir2 = fdopendir(openat(dirfd(dir), dent->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC));
- if (dir2 != NULL)
+ if (dir2)
cleanup_dir(dir2, mask, depth-1);
(void) unlinkat(dirfd(dir), dent->d_name, AT_REMOVEDIR);
}
}
-static void cleanup_db(struct udev *udev) {
+static void cleanup_db(void) {
_cleanup_closedir_ DIR *dir1 = NULL, *dir2 = NULL, *dir3 = NULL, *dir4 = NULL, *dir5 = NULL;
(void) unlink("/run/udev/queue.bin");
dir1 = opendir("/run/udev/data");
- if (dir1 != NULL)
+ if (dir1)
cleanup_dir(dir1, S_ISVTX, 1);
dir2 = opendir("/run/udev/links");
- if (dir2 != NULL)
+ if (dir2)
cleanup_dir(dir2, 0, 2);
dir3 = opendir("/run/udev/tags");
- if (dir3 != NULL)
+ if (dir3)
cleanup_dir(dir3, 0, 2);
dir4 = opendir("/run/udev/static_node-tags");
- if (dir4 != NULL)
+ if (dir4)
cleanup_dir(dir4, 0, 2);
dir5 = opendir("/run/udev/watch");
- if (dir5 != NULL)
+ if (dir5)
cleanup_dir(dir5, 0, 1);
}
-static void help(void) {
+static int query_device(QueryType query, sd_device* device) {
+ int r;
+
+ assert(device);
+
+ switch(query) {
+ case QUERY_NAME: {
+ const char *node;
+
+ r = sd_device_get_devname(device, &node);
+ if (r < 0)
+ return log_error_errno(r, "No device node found: %m");
+
+ if (!arg_root)
+ assert_se(node = path_startswith(node, "/dev/"));
+ printf("%s\n", node);
+ return 0;
+ }
+
+ case QUERY_SYMLINK: {
+ const char *devlink, *prefix = "";
+
+ FOREACH_DEVICE_DEVLINK(device, devlink) {
+ if (!arg_root)
+ assert_se(devlink = path_startswith(devlink, "/dev/"));
+ printf("%s%s", prefix, devlink);
+ prefix = " ";
+ }
+ puts("");
+ return 0;
+ }
+
+ case QUERY_PATH: {
+ const char *devpath;
+
+ r = sd_device_get_devpath(device, &devpath);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get device path: %m");
+
+ printf("%s\n", devpath);
+ return 0;
+ }
+
+ case QUERY_PROPERTY: {
+ const char *key, *value;
+
+ FOREACH_DEVICE_PROPERTY(device, key, value)
+ if (arg_export)
+ printf("%s%s='%s'\n", strempty(arg_export_prefix), key, value);
+ else
+ printf("%s=%s\n", key, value);
+ return 0;
+ }
+
+ case QUERY_ALL:
+ return print_record(device);
+ }
+
+ assert_not_reached("unknown query type");
+ return 0;
+}
+static int help(void) {
printf("%s info [OPTIONS] [DEVPATH|FILE]\n\n"
"Query sysfs or the udev database.\n\n"
" -h --help Print this message\n"
" -e --export-db Export the content of the udev database\n"
" -c --cleanup-db Clean up the udev database\n"
, program_invocation_short_name);
+
+ return 0;
}
-static int uinfo(struct udev *udev, int argc, char *argv[]) {
- _cleanup_(udev_device_unrefp) struct udev_device *device = NULL;
- bool root = 0;
- bool export = 0;
- const char *export_prefix = NULL;
- char name[UTIL_PATH_SIZE];
- struct udev_list_entry *list_entry;
- int c;
+int info_main(int argc, char *argv[], void *userdata) {
+ _cleanup_strv_free_ char **devices = NULL;
+ _cleanup_free_ char *name = NULL;
+ int c, r;
static const struct option options[] = {
{ "name", required_argument, NULL, 'n' },
{}
};
- enum action_type {
- ACTION_QUERY,
- ACTION_ATTRIBUTE_WALK,
- ACTION_DEVICE_ID_FILE,
- } action = ACTION_QUERY;
-
- enum query_type {
- QUERY_NAME,
- QUERY_PATH,
- QUERY_SYMLINK,
- QUERY_PROPERTY,
- QUERY_ALL,
- } query = QUERY_ALL;
+ ActionType action = ACTION_QUERY;
+ QueryType query = QUERY_ALL;
while ((c = getopt_long(argc, argv, "aced:n:p:q:rxP:RVh", options, NULL)) >= 0)
switch (c) {
- case 'n': {
- if (device != NULL) {
- fprintf(stderr, "device already specified\n");
- return 2;
- }
-
- device = find_device(udev, optarg, "/dev/");
- if (device == NULL) {
- fprintf(stderr, "device node not found\n");
- return 2;
- }
+ case 'n':
+ case 'p': {
+ const char *prefix = c == 'n' ? "/dev/" : "/sys/";
+ char *path;
+
+ path = path_join(path_startswith(optarg, prefix) ? NULL : prefix, optarg);
+ if (!path)
+ return log_oom();
+
+ r = strv_consume(&devices, path);
+ if (r < 0)
+ return log_oom();
break;
}
- case 'p':
- if (device != NULL) {
- fprintf(stderr, "device already specified\n");
- return 2;
- }
- device = find_device(udev, optarg, "/sys");
- if (device == NULL) {
- fprintf(stderr, "syspath not found\n");
- return 2;
- }
- break;
case 'q':
action = ACTION_QUERY;
if (streq(optarg, "property") || streq(optarg, "env"))
else if (streq(optarg, "all"))
query = QUERY_ALL;
else {
- fprintf(stderr, "unknown query type\n");
- return 3;
+ log_error("unknown query type");
+ return -EINVAL;
}
break;
case 'r':
- root = true;
+ arg_root = true;
break;
case 'd':
action = ACTION_DEVICE_ID_FILE;
- strscpy(name, sizeof(name), optarg);
+ r = free_and_strdup(&name, optarg);
+ if (r < 0)
+ return log_oom();
break;
case 'a':
action = ACTION_ATTRIBUTE_WALK;
break;
case 'e':
- if (export_devices(udev) < 0)
- return 1;
- return 0;
+ return export_devices();
case 'c':
- cleanup_db(udev);
+ cleanup_db();
return 0;
case 'x':
- export = true;
+ arg_export = true;
break;
case 'P':
- export_prefix = optarg;
+ arg_export_prefix = optarg;
break;
case 'V':
- print_version();
- return 0;
+ return print_version();
case 'h':
- help();
- return 0;
+ return help();
+ case '?':
+ return -EINVAL;
default:
- return 1;
- }
-
- switch (action) {
- case ACTION_QUERY:
- if (!device) {
- if (!argv[optind]) {
- help();
- return 2;
- }
- device = find_device(udev, argv[optind], NULL);
- if (!device) {
- fprintf(stderr, "Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.\n");
- return 4;
- }
+ assert_not_reached("Unknown option");
}
- switch(query) {
- case QUERY_NAME: {
- const char *node = udev_device_get_devnode(device);
- if (node == NULL) {
- fprintf(stderr, "no device node found\n");
- return 5;
- }
+ if (action == ACTION_DEVICE_ID_FILE) {
+ if (argv[optind])
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Positional arguments are not allowed with -d/--device-id-of-file.");
+ assert(name);
+ return stat_device(name, arg_export, arg_export_prefix);
+ }
- if (root)
- printf("%s\n", udev_device_get_devnode(device));
- else
- printf("%s\n",
- udev_device_get_devnode(device) + STRLEN("/dev/"));
- break;
- }
- case QUERY_SYMLINK:
- 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
- printf("%s",
- udev_list_entry_get_name(list_entry) + STRLEN("/dev/"));
- list_entry = udev_list_entry_get_next(list_entry);
- if (list_entry != NULL)
- printf(" ");
- }
- printf("\n");
- break;
- case QUERY_PATH:
- printf("%s\n", udev_device_get_devpath(device));
- return 0;
- case QUERY_PROPERTY:
- list_entry = udev_device_get_properties_list_entry(device);
- while (list_entry != NULL) {
- if (export)
- printf("%s%s='%s'\n", strempty(export_prefix),
- udev_list_entry_get_name(list_entry),
- udev_list_entry_get_value(list_entry));
- else
- 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(device);
- break;
- default:
- assert_not_reached("unknown query type");
- }
- break;
- case ACTION_ATTRIBUTE_WALK:
- if (!device && argv[optind]) {
- device = find_device(udev, argv[optind], NULL);
- if (!device) {
- fprintf(stderr, "Unknown device, absolute path in /dev/ or /sys expected.\n");
- return 4;
- }
- }
- if (!device) {
- fprintf(stderr, "Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.\n");
- return 4;
- }
- print_device_chain(device);
- break;
- case ACTION_DEVICE_ID_FILE:
- if (stat_device(name, export, export_prefix) != 0)
- return 1;
- break;
+ r = strv_extend_strv(&devices, argv + optind, false);
+ if (r < 0)
+ return log_error_errno(r, "Failed to build argument list: %m");
+
+ if (strv_isempty(devices))
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "A device name or path is required");
+ if (action == ACTION_ATTRIBUTE_WALK && strv_length(devices) > 1)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Only one device may be specified with -a/--attribute-walk");
+
+ char **p;
+ STRV_FOREACH(p, devices) {
+ _cleanup_(sd_device_unrefp) sd_device *device = NULL;
+
+ r = find_device(*p, NULL, &device);
+ if (r == -EINVAL)
+ return log_error_errno(r, "Bad argument \"%s\", expected an absolute path in /dev/ or /sys or a unit name: %m", *p);
+ if (r < 0)
+ return log_error_errno(r, "Unknown device \"%s\": %m", *p);
+
+ if (action == ACTION_QUERY)
+ r = query_device(query, device);
+ else if (action == ACTION_ATTRIBUTE_WALK)
+ r = print_device_chain(device);
+ else
+ assert_not_reached("Unknown action");
+ if (r < 0)
+ return r;
}
return 0;
}
-
-const struct udevadm_cmd udevadm_info = {
- .name = "info",
- .cmd = uinfo,
- .help = "Query sysfs or the udev database",
-};
projects / thirdparty / systemd.git / blobdiff