/*
- * usb_id.c
- *
- * Identify an USB (block) device
+ * usb_id - identify an USB device
*
* Copyright (c) 2005 SUSE Linux Products GmbH, Germany
+ *
* Author:
* Hannes Reinecke <hare@suse.de>
*
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of the
- * License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation version 2 of the License.
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
+#include <getopt.h>
-#include <../../libsysfs/sysfs/libsysfs.h>
-#include "../../udev_utils.h"
-#include "../../logging.h"
+#include "../../udev/udev.h"
-#define MAX_NAME_LEN 72
-#define MAX_SERIAL_LEN 256
-#define BLKGETSIZE64 _IOR(0x12,114,size_t)
+int debug;
-#ifdef USE_LOG
-void log_message(int priority, const char *format, ...)
+static void log_fn(struct udev *udev, int priority,
+ const char *file, int line, const char *fn,
+ const char *format, va_list args)
{
- va_list args;
- static int udev_log = -1;
-
- if (udev_log == -1) {
- const char *value;
-
- value = getenv("UDEV_LOG");
- if (value)
- udev_log = log_priority(value);
- else
- udev_log = LOG_ERR;
+ if (debug) {
+ fprintf(stderr, "%s: ", fn != NULL ? fn : file);
+ vfprintf(stderr, format, args);
+ } else {
+ vsyslog(priority, format, args);
}
-
- if (priority > udev_log)
- return;
-
- va_start(args, format);
- vsyslog(priority, format, args);
- va_end(args);
}
-#endif
-char sysfs_mnt_path[SYSFS_PATH_MAX];
static char vendor_str[64];
static char model_str[64];
-static char serial_str[MAX_SERIAL_LEN];
-static char revision_str[16];
-static char type_str[16];
+static char serial_str[UTIL_NAME_SIZE];
+static char revision_str[64];
+static char type_str[64];
+static char instance_str[64];
static int use_usb_info;
static int use_num_info;
-static int export;
-static int debug;
-static void set_str(char *to, const unsigned char *from, int count)
+static void set_usb_iftype(char *to, int if_class_num, size_t len)
{
- int i, j;
- int len;
-
- /* strip trailing whitespace */
- len = strnlen(from, count);
- while (isspace(from[len-1]))
- len--;
-
- /* strip leading whitespace */
- i = 0;
- while (isspace(from[i]) && (i < len))
- i++;
-
- j = 0;
- while (i < len) {
- /* substitute multiple whitespace */
- if (isspace(from[i])) {
- while (isspace(from[i]))
- i++;
- to[j++] = '_';
- }
- /* Replace '/' with '.' */
- if (from[i] == '/') {
- to[j++] = '.';
- i++;
- continue;
- }
- /* skip non-printable chars */
- if (!isalnum(from[i]) && !ispunct(from[i])) {
- i++;
- continue;
- }
- to[j++] = from[i++];
+ char *type = "generic";
+
+ switch (if_class_num) {
+ case 1:
+ type = "audio";
+ break;
+ case 3:
+ type = "hid";
+ break;
+ case 7:
+ type = "printer";
+ break;
+ case 8:
+ type = "storage";
+ break;
+ case 2: /* CDC-Control */
+ break;
+ case 5: /* Physical */
+ break;
+ case 6: /* Image */
+ break;
+ case 9: /* HUB */
+ break;
+ case 0x0a: /* CDC-Data */
+ break;
+ case 0x0b: /* Chip/Smart Card */
+ break;
+ case 0x0d: /* Content Security */
+ break;
+ case 0x0e:
+ type = "video";
+ break;
+ case 0xdc: /* Diagnostic Device */
+ break;
+ case 0xe0: /* Wireless Controller */
+ break;
+ case 0xf2: /* Application-specific */
+ break;
+ case 0xff: /* Vendor-specific */
+ break;
+ default:
+ break;
}
- to[j] = '\0';
+ strncpy(to, type, len);
+ to[len-1] = '\0';
}
-/*
- * set_usb_iftype
- *
- * Set the type based on the USB interface class
- */
-static void set_usb_iftype(char *to, const char *from, int count)
-{
- int type_num;
- char *eptr;
-
- type_num = strtoul(from, &eptr, 0);
- if (eptr != from) {
- switch (type_num) {
- case 1:
- sprintf(to, "audio");
- break;
- case 3:
- sprintf(to, "hid");
- break;
- case 7:
- sprintf(to, "printer");
- break;
- case 8:
- sprintf(to, "disk");
- break;
- case 2: /* CDC-Control */
- case 5: /* Physical */
- case 6: /* Image */
- case 9: /* HUB */
- case 0x0a: /* CDC-Data */
- case 0x0b: /* Chip/Smart Card */
- case 0x0d: /* Content Security */
- case 0x0e: /* Video */
- case 0xdc: /* Diagnostic Device */
- case 0xe0: /* Wireless Controller */
- case 0xf2: /* Application-specific */
- case 0xff: /* Vendor-specific */
- default:
- sprintf(to, "generic");
- break;
- }
- } else {
- sprintf(to, "generic");
- }
-}
-
-/*
- * set_usb_ifsybtype
- *
- * Set the type base on the interfaceSubClass.
- * Valid for Mass-Storage devices (type 8) only.
- */
-static int set_usb_ifsubtype(char *to, const char *from, int count)
+static int set_usb_mass_storage_ifsubtype(char *to, const char *from, size_t len)
{
int type_num = 0;
char *eptr;
+ char *type = "generic";
type_num = strtoul(from, &eptr, 0);
if (eptr != from) {
switch (type_num) {
case 2:
- sprintf(to, "cd");
+ type = "cd";
break;
case 3:
- sprintf(to, "tape");
+ type = "tape";
break;
case 4: /* UFI */
case 5: /* SFF-8070i */
- sprintf(to, "floppy");
+ type = "floppy";
break;
case 1: /* RBC devices */
+ type = "rbc";
+ break;
case 6: /* Transparent SPC-2 devices */
- sprintf(to, "disk");
+ type = "scsi";
+ break;
+ default:
break;
}
- } else {
- sprintf(to, "generic");
}
+ util_strlcpy(to, type, len);
return type_num;
}
-static void set_scsi_type(char *to, const char *from, int count)
+static void set_scsi_type(char *to, const char *from, size_t len)
{
int type_num;
char *eptr;
+ char *type = "generic";
type_num = strtoul(from, &eptr, 0);
if (eptr != from) {
switch (type_num) {
case 0:
- sprintf(to, "disk");
+ case 0xe:
+ type = "disk";
break;
case 1:
- sprintf(to, "tape");
+ type = "tape";
break;
case 4:
- sprintf(to, "optical");
- break;
- case 5:
- sprintf(to, "cd");
- break;
case 7:
- sprintf(to, "optical");
- break;
- case 0xe:
- sprintf(to, "disk");
- break;
case 0xf:
- sprintf(to, "optical");
+ type = "optical";
+ break;
+ case 5:
+ type = "cd";
break;
default:
- sprintf(to, "generic");
break;
}
- } else {
- sprintf(to, "generic");
}
+ util_strlcpy(to, type, len);
}
/*
* 6.) If the device supplies a serial number, this number
* is concatenated with the identification with an underscore '_'.
*/
-static int usb_id(const char *target_path)
+static int usb_id(struct udev_device *dev)
{
- struct sysfs_class_device *class_dev; /* of target_path */
- struct sysfs_class_device *class_dev_parent; /* for partitions */
- struct sysfs_device *scsi_dev; /* the scsi_device */
- struct sysfs_device *target_dev;
- struct sysfs_device *host_dev, *interface_dev, *usb_dev;
- struct sysfs_attribute *scsi_model, *scsi_vendor, *scsi_type, *scsi_rev;
- struct sysfs_attribute *usb_model = NULL, *usb_vendor = NULL, *usb_rev, *usb_serial;
- struct sysfs_attribute *if_class, *if_subclass;
+ struct udev *udev = udev_device_get_udev(dev);
+ struct udev_device *dev_interface;
+ struct udev_device *dev_usb;
+ const char *if_class, *if_subclass;
int if_class_num;
int protocol = 0;
- class_dev = sysfs_open_class_device_path(target_path);
- if (!class_dev) {
- info("open class %s failed: %s", target_path, strerror(errno));
- return 1;
- }
- class_dev_parent = sysfs_get_classdev_parent(class_dev);
- if (class_dev_parent) {
- scsi_dev = sysfs_get_classdev_device(class_dev_parent);
- } else {
- scsi_dev = sysfs_get_classdev_device(class_dev);
- }
+ dbg(udev, "syspath %s\n", udev_device_get_syspath(dev));
- /*
- * The close of scsi_dev will close class_dev or class_dev_parent.
- */
-
- /*
- * We assume we are called after the device is completely ready,
- * so we don't have to loop here like udev. (And we are usually
- * called via udev.)
- */
- if (!scsi_dev) {
- /*
- * errno is not set if we can't find the device link, so
- * don't print it out here.
- */
- info("Cannot find sysfs device associated with %s", target_path);
+ /* usb interface directory */
+ dev_interface = udev_device_get_parent_with_subsystem(dev, "usb");
+ if (dev_interface == NULL) {
+ info(udev, "unable to access usb_interface device of '%s'\n",
+ udev_device_get_syspath(dev));
return 1;
}
- /*
- * Allow only scsi devices.
- *
- * Other block devices can support SG IO, but only ide-cd does, so
- * for now, don't bother with anything else.
- */
- if (strcmp(scsi_dev->bus, "scsi") != 0) {
- info("%s is not a scsi device", target_path);
+ if_class = udev_device_get_sysattr_value(dev_interface, "bInterfaceClass");
+ if (!if_class) {
+ info(udev, "%s: cannot get bInterfaceClass attribute\n",
+ udev_device_get_sysname(dev));
return 1;
}
+ if_class_num = strtoul(if_class, NULL, 16);
+ if (if_class_num == 8) {
+ if_subclass = udev_device_get_sysattr_value(dev_interface, "bInterfaceSubClass");
+ if (if_subclass != NULL)
+ protocol = set_usb_mass_storage_ifsubtype(type_str, if_subclass, sizeof(type_str)-1);
+ } else {
+ set_usb_iftype(type_str, if_class_num, sizeof(type_str)-1);
+ }
- /* target directory */
- target_dev = sysfs_get_device_parent(scsi_dev);
- /* host directory */
- host_dev = sysfs_get_device_parent(target_dev);
- /* usb interface directory */
- interface_dev = sysfs_get_device_parent(host_dev);
- /* usb device directory */
- usb_dev = sysfs_get_device_parent(interface_dev);
+ info(udev, "%s: if_class %d protocol %d\n",
+ udev_device_get_syspath(dev_interface), if_class_num, protocol);
- if (!strcmp(interface_dev->bus, "bus") != 0) {
- info("%s is not an usb device", target_path);
- return 1;
- }
-
- if_class = sysfs_get_device_attr(interface_dev, "bInterfaceClass");
- if (!if_class) {
- info("%s: cannot get bInterfaceClass attribute", interface_dev->name);
+ /* usb device directory */
+ dev_usb = udev_device_get_parent_with_subsystem(dev_interface, "usb");
+ if (!dev_usb) {
+ info(udev, "unable to find parent 'usb' device of '%s'\n",
+ udev_device_get_syspath(dev));
return 1;
}
- if_class_num = strtoul(if_class->value, NULL, 16);
- if (if_class_num != 8) {
- set_usb_iftype(type_str, if_class->value, sizeof(type_str) - 1);
- protocol = 0;
- } else {
- if_subclass = sysfs_get_device_attr(interface_dev,
- "bInterfaceSubClass");
- protocol = set_usb_ifsubtype(type_str, if_subclass->value,
- sizeof(type_str) -1 );
- }
- if (!use_usb_info && protocol == 6) {
+ /* mass storage */
+ if (protocol == 6 && !use_usb_info) {
+ struct udev_device *dev_scsi;
+ const char *scsi_model, *scsi_vendor, *scsi_type, *scsi_rev;
+ int host, bus, target, lun;
+
+ /* get scsi device */
+ dev_scsi = udev_device_get_parent_with_subsystem(dev, "scsi");
+ if (dev_scsi == NULL) {
+ info(udev, "unable to find parent 'scsi' device of '%s'\n",
+ udev_device_get_syspath(dev));
+ goto fallback;
+ }
+ if (sscanf(udev_device_get_sysname(dev_scsi), "%d:%d:%d:%d", &host, &bus, &target, &lun) != 4) {
+ info(udev, "invalid scsi device '%s'\n", udev_device_get_sysname(dev_scsi));
+ goto fallback;
+ }
+
/* Generic SPC-2 device */
- scsi_vendor = sysfs_get_device_attr(scsi_dev, "vendor");
+ scsi_vendor = udev_device_get_sysattr_value(dev_scsi, "vendor");
if (!scsi_vendor) {
- info("%s: cannot get SCSI vendor attribute", scsi_dev->name);
- return 1;
+ info(udev, "%s: cannot get SCSI vendor attribute\n",
+ udev_device_get_sysname(dev_scsi));
+ goto fallback;
}
- set_str(vendor_str, scsi_vendor->value, sizeof(vendor_str)-1);
+ udev_util_replace_whitespace(scsi_vendor, vendor_str, sizeof(vendor_str)-1);
+ udev_util_replace_chars(vendor_str, NULL);
- scsi_model = sysfs_get_device_attr(scsi_dev, "model");
+ scsi_model = udev_device_get_sysattr_value(dev_scsi, "model");
if (!scsi_model) {
- info("%s: cannot get SCSI model attribute", scsi_dev->name);
- return 1;
+ info(udev, "%s: cannot get SCSI model attribute\n",
+ udev_device_get_sysname(dev_scsi));
+ goto fallback;
}
- set_str(model_str, scsi_model->value, sizeof(model_str)-1);
+ udev_util_replace_whitespace(scsi_model, model_str, sizeof(model_str)-1);
+ udev_util_replace_chars(model_str, NULL);
- scsi_type = sysfs_get_device_attr(scsi_dev, "type");
+ scsi_type = udev_device_get_sysattr_value(dev_scsi, "type");
if (!scsi_type) {
- info("%s: cannot get SCSI type attribute", scsi_dev->name);
- return 1;
+ info(udev, "%s: cannot get SCSI type attribute\n",
+ udev_device_get_sysname(dev_scsi));
+ goto fallback;
}
- set_scsi_type(type_str, scsi_type->value, sizeof(type_str)-1);
+ set_scsi_type(type_str, scsi_type, sizeof(type_str)-1);
- scsi_rev = sysfs_get_device_attr(scsi_dev, "rev");
+ scsi_rev = udev_device_get_sysattr_value(dev_scsi, "rev");
if (!scsi_rev) {
- info("%s: cannot get SCSI revision attribute", scsi_dev->name);
- return 1;
+ info(udev, "%s: cannot get SCSI revision attribute\n",
+ udev_device_get_sysname(dev_scsi));
+ goto fallback;
}
- set_str(revision_str, scsi_rev->value, sizeof(revision_str)-1);
+ udev_util_replace_whitespace(scsi_rev, revision_str, sizeof(revision_str)-1);
+ udev_util_replace_chars(revision_str, NULL);
+ /*
+ * some broken devices have the same identifiers
+ * for all luns, export the target:lun number
+ */
+ sprintf(instance_str, "%d:%d", target, lun);
}
- /* Fallback to USB vendor & device */
+fallback:
+ /* fallback to USB vendor & device */
if (vendor_str[0] == '\0') {
+ const char *usb_vendor = NULL;
+
if (!use_num_info)
- if (!(usb_vendor = sysfs_get_device_attr(usb_dev, "manufacturer")))
- dbg("No USB vendor string found, using idVendor");
+ usb_vendor = udev_device_get_sysattr_value(dev_usb, "manufacturer");
+
+ if (!usb_vendor)
+ usb_vendor = udev_device_get_sysattr_value(dev_usb, "idVendor");
if (!usb_vendor) {
- if (!(usb_vendor = sysfs_get_device_attr(usb_dev, "idVendor"))) {
- dbg("No USB vendor information available\n");
- sprintf(vendor_str,"0000");
- }
+ info(udev, "No USB vendor information available\n");
+ return 1;
}
- set_str(vendor_str,usb_vendor->value, sizeof(vendor_str) - 1);
+ udev_util_replace_whitespace(usb_vendor, vendor_str, sizeof(vendor_str)-1);
+ udev_util_replace_chars(vendor_str, NULL);
}
-
+
if (model_str[0] == '\0') {
+ const char *usb_model = NULL;
+
if (!use_num_info)
- if (!(usb_model = sysfs_get_device_attr(usb_dev, "product")))
- dbg("No USB model string found, using idProduct");
-
+ usb_model = udev_device_get_sysattr_value(dev_usb, "product");
+
+ if (!usb_model)
+ usb_model = udev_device_get_sysattr_value(dev_usb, "idProduct");
+
if (!usb_model) {
- if (!(usb_model = sysfs_get_device_attr(usb_dev, "idProduct"))) {
- dbg("No USB model information available\n");
- sprintf(model_str,"0000");
- }
+ dbg(udev, "No USB model information available\n");
+ return 1;
}
- set_str(model_str, usb_model->value, sizeof(model_str) - 1);
+ udev_util_replace_whitespace(usb_model, model_str, sizeof(model_str)-1);
+ udev_util_replace_chars(model_str, NULL);
}
if (revision_str[0] == '\0') {
- usb_rev = sysfs_get_device_attr(usb_dev, "bcdDevice");
+ const char *usb_rev;
+
+ usb_rev = udev_device_get_sysattr_value(dev_usb, "bcdDevice");
if (usb_rev) {
- set_str(revision_str, usb_rev->value,
- sizeof(revision_str) - 1);
+ udev_util_replace_whitespace(usb_rev, revision_str, sizeof(revision_str)-1);
+ udev_util_replace_chars(revision_str, NULL);
}
}
if (serial_str[0] == '\0') {
- usb_serial = sysfs_get_device_attr(usb_dev, "serial");
+ const char *usb_serial;
+
+ usb_serial = udev_device_get_sysattr_value(dev_usb, "serial");
if (usb_serial) {
- set_str(serial_str, usb_serial->value,
- sizeof(serial_str) - 1);
+ udev_util_replace_whitespace(usb_serial, serial_str, sizeof(serial_str)-1);
+ udev_util_replace_chars(serial_str, NULL);
}
}
return 0;
int main(int argc, char **argv)
{
- int retval;
- char *devpath;
- char target_path[MAX_NAME_LEN];
- int option;
-
- dbg("argc is %d", argc);
- if (sysfs_get_mnt_path(sysfs_mnt_path, MAX_NAME_LEN)) {
- info("sysfs_get_mnt_path failed: %s",
- strerror(errno));
- exit(1);
- }
-
- while ((option = getopt(argc, argv, "dnux")) != -1 ) {
- if (optarg)
- dbg("option '%c' arg '%s'", option, optarg);
- else
- dbg("option '%c'", option);
+ static const struct option options[] = {
+ { "usb-info", no_argument, NULL, 'u' },
+ { "num-info", no_argument, NULL, 'n' },
+ { "export", no_argument, NULL, 'x' },
+ { "debug", no_argument, NULL, 'd' },
+ { "help", no_argument, NULL, 'h' },
+ {}
+ };
+ struct udev *udev;
+ struct udev_device *dev = NULL;
+ char syspath[UTIL_PATH_SIZE];
+ const char *devpath;
+ static int export;
+ int retval = 0;
+
+ udev = udev_new();
+ if (udev == NULL)
+ goto exit;
+
+ logging_init("usb_id");
+ udev_set_log_fn(udev, log_fn);
+
+ while (1) {
+ int option;
+
+ option = getopt_long(argc, argv, "dnuxh", options, NULL);
+ if (option == -1)
+ break;
switch (option) {
case 'd':
debug = 1;
+ if (udev_get_log_priority(udev) < LOG_INFO)
+ udev_set_log_priority(udev, LOG_INFO);
break;
case 'n':
- use_num_info=1;
- use_usb_info=1;
+ use_num_info = 1;
+ use_usb_info = 1;
break;
case 'u':
- use_usb_info=1;
+ use_usb_info = 1;
break;
case 'x':
- export=1;
+ export = 1;
break;
+ case 'h':
+ printf("Usage: usb_id [--usb-info] [--num-info] [--export] [--help] <devpath>\n"
+ " --usb-info use usb strings instead\n"
+ " --num-info use numerical values\n"
+ " --export print values as environemt keys\n"
+ " --help print this help text\n\n");
default:
- info("Unknown or bad option '%c' (0x%x)", option, option);
retval = 1;
- break;
+ goto exit;
}
}
devpath = getenv("DEVPATH");
- if (devpath) {
- strncpy(target_path, sysfs_mnt_path, MAX_NAME_LEN);
- strncat(target_path, devpath, MAX_NAME_LEN);
- } else {
- if (optind == argc) {
- fprintf(stderr, "No device specified\n");
- exit(1);
- }
+ if (devpath == NULL)
devpath = argv[optind];
- strncpy(target_path, devpath, MAX_NAME_LEN);
+ if (devpath == NULL) {
+ fprintf(stderr, "No device specified\n");
+ retval = 1;
+ goto exit;
}
- retval = usb_id(target_path);
+ util_strlcpy(syspath, udev_get_sys_path(udev), sizeof(syspath));
+ util_strlcat(syspath, devpath, sizeof(syspath));
+ dev = udev_device_new_from_syspath(udev, syspath);
+ if (dev == NULL) {
+ err(udev, "unable to access '%s'\n", devpath);
+ return 1;
+ }
+ retval = usb_id(dev);
if (retval == 0) {
+ char serial[256];
+
+ util_strlcpy(serial, vendor_str, sizeof(serial));
+ util_strlcat(serial, "_", sizeof(serial));
+ util_strlcat(serial, model_str, sizeof(serial));
+ if (serial_str[0] != '\0') {
+ util_strlcat(serial, "_", sizeof(serial));
+ util_strlcat(serial, serial_str, sizeof(serial));
+ }
+ if (instance_str[0] != '\0') {
+ util_strlcat(serial, "-", sizeof(serial));
+ util_strlcat(serial, instance_str, sizeof(serial));
+ }
+
if (export) {
printf("ID_VENDOR=%s\n", vendor_str);
printf("ID_MODEL=%s\n", model_str);
printf("ID_REVISION=%s\n", revision_str);
- if (serial_str[0] == '\0') {
- printf("ID_SERIAL=%s_%s\n",
- vendor_str, model_str);
- } else {
- printf("ID_SERIAL=%s_%s_%s\n",
- vendor_str, model_str, serial_str);
- }
+ printf("ID_SERIAL=%s\n", serial);
+ if (serial_str[0] != '\0')
+ printf("ID_SERIAL_SHORT=%s\n", serial_str);
printf("ID_TYPE=%s\n", type_str);
- } else {
- if (serial_str[0] == '\0') {
- printf("%s_%s\n",
- vendor_str, model_str);
- } else {
- printf("%s_%s_%s\n",
- vendor_str, model_str, serial_str);
- }
- }
+ if (instance_str[0] != '\0')
+ printf("ID_INSTANCE=%s\n", instance_str);
+ printf("ID_BUS=usb\n");
+ } else
+ printf("%s\n", serial);
}
- exit(retval);
-}
-
-
+exit:
+ udev_device_unref(dev);
+ udev_unref(udev);
+ logging_close();
+ return retval;
+}
~ianmdlvl / elogind.git / blobdiff