src/udev/scsi_id/scsi_id.h

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