src/udev/scsi_id/scsi_id.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 #pragma once
   3
   4 /*
   5  * Copyright (C) IBM Corp. 2003
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation, either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #define MAX_PATH_LEN 512
  22
  23 /*
  24  * MAX_ATTR_LEN: maximum length of the result of reading a sysfs
  25  * attribute.
  26  */
  27 #define MAX_ATTR_LEN 256
  28
  29 /*
  30  * MAX_SERIAL_LEN: the maximum length of the serial number, including
  31  * added prefixes such as vendor and product (model) strings.
  32  */
  33 #define MAX_SERIAL_LEN 256
  34
  35 /*
  36  * MAX_BUFFER_LEN: maximum buffer size and line length used while reading
  37  * the config file.
  38  */
  39 #define MAX_BUFFER_LEN 256
  40
  41 struct scsi_id_device {
  42         char vendor[9];
  43         char model[17];
  44         char revision[5];
  45         char type[33];
  46         char kernel[64];
  47         char serial[MAX_SERIAL_LEN];
  48         char serial_short[MAX_SERIAL_LEN];
  49         int use_sg;
  50
  51         /* Always from page 0x80 e.g. 'B3G1P8500RWT' - may not be unique */
  52         char unit_serial_number[MAX_SERIAL_LEN];
  53
  54         /* NULs if not set - otherwise hex encoding using lower-case e.g. '50014ee0016eb572' */
  55         char wwn[17];
  56
  57         /* NULs if not set - otherwise hex encoding using lower-case e.g. '0xe00000d80000' */
  58         char wwn_vendor_extension[17];
  59
  60         /* NULs if not set - otherwise decimal number */
  61         char tgpt_group[8];
  62 };
  63
  64 int scsi_std_inquiry(struct udev *udev, struct scsi_id_device *dev_scsi, const char *devname);
  65 int scsi_get_serial(struct udev *udev, struct scsi_id_device *dev_scsi, const char *devname,
  66                     int page_code, int len);
  67
  68 /*
  69  * Page code values.
  70  */
  71 enum page_code {
  72         PAGE_83_PRE_SPC3 = -0x83,
  73         PAGE_UNSPECIFIED = 0x00,
  74         PAGE_80          = 0x80,
  75         PAGE_83          = 0x83,
  76 };