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/* $OpenBSD: softraid_crypto.c,v 1.18 2008/02/23 19:46:00 marco Exp $ */
/*
* Copyright (c) 2007 Marco Peereboom <marco@peereboom.us>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "bio.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/disk.h>
#include <sys/rwlock.h>
#include <sys/queue.h>
#include <sys/fcntl.h>
#include <sys/disklabel.h>
#include <sys/mount.h>
#include <sys/sensors.h>
#include <sys/stat.h>
#include <sys/conf.h>
#include <sys/uio.h>
#include <crypto/cryptodev.h>
#include <crypto/cryptosoft.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <scsi/scsi_disk.h>
#include <dev/softraidvar.h>
#include <dev/rndvar.h>
int sr_crypto_decrypt_key(struct sr_discipline *);
int sr_crypto_encrypt_key(struct sr_discipline *);
int
sr_crypto_decrypt_key(struct sr_discipline *sd)
{
DNPRINTF(SR_D_DIS, "%s: sr_crypto_decrypt_key\n", DEVNAME(sd->sd_sc));
return (1);
}
int
sr_crypto_encrypt_key(struct sr_discipline *sd)
{
DNPRINTF(SR_D_DIS, "%s: sr_crypto_encrypt_key\n", DEVNAME(sd->sd_sc));
return (1);
}
void
sr_crypto_create_keys(struct sr_discipline *sd)
{
u_int32_t *pk1, *pk2, sz;
int i, x;
DNPRINTF(SR_D_DIS, "%s: sr_crypto_create_keys\n",
DEVNAME(sd->sd_sc));
/* generate crypto keys */
for (i = 0; i < SR_CRYPTO_MAXKEYS; i++) {
sz = sizeof(sd->mds.mdd_crypto.scr_key1[i]) / 4;
pk1 = (u_int32_t *)sd->mds.mdd_crypto.scr_key1[i];
pk2 = (u_int32_t *)sd->mds.mdd_crypto.scr_key2[i];
for (x = 0; x < sz; x++) {
*pk1++ = arc4random();
*pk2++ = arc4random();
}
}
/* generate salt */
sz = sizeof(sd->mds.mdd_crypto.scr_meta[0].scm_salt) / 4;
pk1 = (u_int32_t *)sd->mds.mdd_crypto.scr_meta[0].scm_salt;
for (i = 0; i < sz; i++)
*pk1++ = arc4random();
sd->mds.mdd_crypto.scr_meta[0].scm_flags =
SR_CRYPTOF_KEY | SR_CRYPTOF_SALT;
strlcpy(sd->mds.mdd_crypto.scr_meta[1].scm_passphrase,
"my super secret passphrase ZOMGPASSWD",
sizeof(sd->mds.mdd_crypto.scr_meta[1].scm_passphrase));
sd->mds.mdd_crypto.scr_meta[1].scm_flags =
SR_CRYPTOF_PASSPHRASE;
}
int
sr_crypto_alloc_resources(struct sr_discipline *sd)
{
DNPRINTF(SR_D_DIS, "%s: sr_crypto_alloc_resources\n",
DEVNAME(sd->sd_sc));
return (EINVAL);
}
int
sr_crypto_free_resources(struct sr_discipline *sd)
{
DNPRINTF(SR_D_DIS, "%s: sr_crypto_free_resources\n",
DEVNAME(sd->sd_sc));
return (EINVAL);
}
int
sr_crypto_rw(struct sr_workunit *wu)
{
DNPRINTF(SR_D_DIS, "%s: sr_crypto_rw wu: %p\n",
DEVNAME(wu->swu_dis->sd_sc), wu);
return (1);
}
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