usr/src/cmd/fwflash/plugins/vendor/sd-GENERIC.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <unistd.h>
  30 #include <sys/types.h>
  31 #include <sys/sysmacros.h>
  32 #include <fcntl.h>
  33 #include <sys/condvar.h>
  34 #include <string.h>
  35 #include <strings.h>
  36
  37 #include <sys/byteorder.h>
  38
  39 #include <libintl.h> /* for gettext(3c) */
  40 #include <fwflash/fwflash.h>
  41
  42 char vendor[] = "GENERIC \0";
  43
  44 /* MAXIMGSIZE = 1.4 * 1024 * 1024 bytes */
  45 /* Currently the largest firmware image size is 1.4 MB */
  46 /* 1468006 = 1.4 * 1024 * 1024 */
  47 #define MAXIMGSIZE      ((unsigned int)(1468006))
  48
  49 extern struct vrfyplugin *verifier;
  50
  51 /* required functions for this plugin */
  52 int vendorvrfy(struct devicelist *devicenode);
  53
  54 /*
  55  * Important information about how this verification plugin works
  56  *
  57  * Direct-attached disks (sd instances) which support firmware
  58  * download accept image files up to 1.4 * 1024 * 1024 bytes in
  59  * size, and do their own verification of the image, rejecting the
  60  * file if it is not appropriate for them.
  61  *
  62  * All that we need to do here is set the various verifier fields
  63  * correctly, and check that the filesize as read from the filesystem
  64  * is less than 1.4 * 1024 * 1024 bytes.
  65  */
  66
  67 int
  68 vendorvrfy(struct devicelist *devicenode)
  69 {
  70         if (verifier->imgsize > MAXIMGSIZE) {
  71                 logmsg(MSG_ERROR,
  72                     gettext("\nsd-GENERIC firmware image verifier: "
  73                     "supplied filename %s exceeds maximum allowable "
  74                     "size of %d bytes\n"),
  75                     verifier->imgfile, MAXIMGSIZE);
  76                 return (FWFLASH_FAILURE);
  77         }
  78
  79         logmsg(MSG_INFO,
  80             "sd-GENERIC verifier for device\n"
  81             "vid %s, pid %s, rev %s\npath %s\n",
  82             devicenode->ident->vid,
  83             devicenode->ident->pid,
  84             devicenode->ident->revid,
  85             devicenode->addresses[0]);
  86         verifier->flashbuf = 0;
  87
  88         return (FWFLASH_SUCCESS);
  89 }