X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=extras%2Fusb_id%2Fusb_id.c;h=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hp=720a0f5df7323e934813a21a5993ae9782917ec2;hb=ee9bf6bda9a3367295ca56842bb29bf197d90f48;hpb=33aa91b1befa3e4f8da57714ac09b7044cf54451 diff --git a/extras/usb_id/usb_id.c b/extras/usb_id/usb_id.c index 720a0f5df..e69de29bb 100644 --- a/extras/usb_id/usb_id.c +++ b/extras/usb_id/usb_id.c @@ -1,500 +0,0 @@ -/* - * usb_id.c - * - * Identify an USB (block) device - * - * Copyright (c) 2005 SUSE Linux Products GmbH, Germany - * Author: - * Hannes Reinecke - * - * 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 - */ - -#include -#include -#include -#include -#include -#include -#include - -#include <../../libsysfs/sysfs/libsysfs.h> -#include "../../udev_utils.h" -#include "../../logging.h" - -#define MAX_NAME_LEN 72 -#define MAX_SERIAL_LEN 256 -#define BLKGETSIZE64 _IOR(0x12,114,size_t) - -#ifdef USE_LOG -void log_message(int priority, const char *format, ...) -{ - 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 (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 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) -{ - 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++]; - } - to[j] = '\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) -{ - int type_num = 0; - char *eptr; - - type_num = strtoul(from, &eptr, 0); - if (eptr != from) { - switch (type_num) { - case 2: - sprintf(to, "cd"); - break; - case 3: - sprintf(to, "tape"); - break; - case 4: /* UFI */ - case 5: /* SFF-8070i */ - sprintf(to, "floppy"); - break; - case 1: /* RBC devices */ - case 6: /* Transparent SPC-2 devices */ - sprintf(to, "disk"); - break; - } - } else { - sprintf(to, "generic"); - } - - return type_num; -} - -static void set_scsi_type(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 0: - sprintf(to, "disk"); - break; - case 1: - sprintf(to, "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"); - break; - default: - sprintf(to, "generic"); - break; - } - } else { - sprintf(to, "generic"); - } -} - -/* - * A unique USB identification is generated like this: - * - * 1.) Get the USB device type from DeviceClass, InterfaceClass - * and InterfaceSubClass - * 2.) If the device type is 'Mass-Storage/SPC-2' or 'Mass-Storage/RBC' - * use the SCSI vendor and model as USB-Vendor and USB-model. - * 3.) Otherwise use the USB manufacturer and product as - * USB-Vendor and USB-model. Any non-printable characters - * in those strings will be skipped; a slash '/' will be converted - * into a full stop '.'. - * 4.) If that fails, too, we will use idVendor and idProduct - * as USB-Vendor and USB-model. - * 5.) The USB identification is the USB-vendor and USB-model - * string concatenated with an underscore '_'. - * 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) -{ - 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; - 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); - } - - /* - * 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); - 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); - return 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); - - if (strcmp(interface_dev->bus, "usb") != 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); - 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) { - /* Generic SPC-2 device */ - scsi_vendor = sysfs_get_device_attr(scsi_dev, "vendor"); - if (!scsi_vendor) { - info("%s: cannot get SCSI vendor attribute", scsi_dev->name); - return 1; - } - set_str(vendor_str, scsi_vendor->value, sizeof(vendor_str)-1); - - scsi_model = sysfs_get_device_attr(scsi_dev, "model"); - if (!scsi_model) { - info("%s: cannot get SCSI model attribute", scsi_dev->name); - return 1; - } - set_str(model_str, scsi_model->value, sizeof(model_str)-1); - - scsi_type = sysfs_get_device_attr(scsi_dev, "type"); - if (!scsi_type) { - info("%s: cannot get SCSI type attribute", scsi_dev->name); - return 1; - } - set_scsi_type(type_str, scsi_type->value, sizeof(type_str)-1); - - scsi_rev = sysfs_get_device_attr(scsi_dev, "rev"); - if (!scsi_rev) { - info("%s: cannot get SCSI revision attribute", scsi_dev->name); - return 1; - } - set_str(revision_str, scsi_rev->value, sizeof(revision_str)-1); - - } - - /* Fallback to USB vendor & device */ - if (vendor_str[0] == '\0') { - if (!use_num_info) - if (!(usb_vendor = sysfs_get_device_attr(usb_dev, "manufacturer"))) - dbg("No USB vendor string found, using 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"); - } - } - set_str(vendor_str,usb_vendor->value, sizeof(vendor_str) - 1); - } - - if (model_str[0] == '\0') { - if (!use_num_info) - if (!(usb_model = sysfs_get_device_attr(usb_dev, "product"))) - dbg("No USB model string found, using 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"); - } - } - set_str(model_str, usb_model->value, sizeof(model_str) - 1); - } - - if (revision_str[0] == '\0') { - usb_rev = sysfs_get_device_attr(usb_dev, "bcdDevice"); - if (usb_rev) { - set_str(revision_str, usb_rev->value, - sizeof(revision_str) - 1); - } - } - - if (serial_str[0] == '\0') { - usb_serial = sysfs_get_device_attr(usb_dev, "serial"); - if (usb_serial) { - set_str(serial_str, usb_serial->value, - sizeof(serial_str) - 1); - } - } - 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); - - switch (option) { - case 'd': - debug = 1; - break; - case 'n': - use_num_info=1; - use_usb_info=1; - break; - case 'u': - use_usb_info=1; - break; - case 'x': - export=1; - break; - default: - info("Unknown or bad option '%c' (0x%x)", option, option); - retval = 1; - break; - } - } - - 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); - } - devpath = argv[optind]; - strncpy(target_path, devpath, MAX_NAME_LEN); - } - - retval = usb_id(target_path); - - if (retval == 0) { - 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_TYPE=%s\n", type_str); - printf("ID_BUS=usb\n"); - } 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); - } - } - } - exit(retval); -}