109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/**
|
|
* AMCC SoC PPC4xx Crypto Driver
|
|
*
|
|
* Copyright (c) 2008 Applied Micro Circuits Corporation.
|
|
* All rights reserved. James Hsiao <jhsiao@amcc.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* @file crypto4xx_sa.c
|
|
*
|
|
* This file implements the security context
|
|
* assoicate format.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/spinlock_types.h>
|
|
#include <linux/highmem.h>
|
|
#include <linux/scatterlist.h>
|
|
#include <linux/crypto.h>
|
|
#include <crypto/algapi.h>
|
|
#include <crypto/des.h>
|
|
#include "crypto4xx_reg_def.h"
|
|
#include "crypto4xx_sa.h"
|
|
#include "crypto4xx_core.h"
|
|
|
|
u32 get_dynamic_sa_offset_iv_field(struct crypto4xx_ctx *ctx)
|
|
{
|
|
u32 offset;
|
|
union dynamic_sa_contents cts;
|
|
|
|
if (ctx->direction == DIR_INBOUND)
|
|
cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_in))->sa_contents;
|
|
else
|
|
cts.w = ((struct dynamic_sa_ctl *)(ctx->sa_out))->sa_contents;
|
|
offset = cts.bf.key_size
|
|
+ cts.bf.inner_size
|
|
+ cts.bf.outer_size
|
|
+ cts.bf.spi
|
|
+ cts.bf.seq_num0
|
|
+ cts.bf.seq_num1
|
|
+ cts.bf.seq_num_mask0
|
|
+ cts.bf.seq_num_mask1
|
|
+ cts.bf.seq_num_mask2
|
|
+ cts.bf.seq_num_mask3;
|
|
|
|
return sizeof(struct dynamic_sa_ctl) + offset * 4;
|
|
}
|
|
|
|
u32 get_dynamic_sa_offset_state_ptr_field(struct crypto4xx_ctx *ctx)
|
|
{
|
|
u32 offset;
|
|
union dynamic_sa_contents cts;
|
|
|
|
if (ctx->direction == DIR_INBOUND)
|
|
cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents;
|
|
else
|
|
cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents;
|
|
offset = cts.bf.key_size
|
|
+ cts.bf.inner_size
|
|
+ cts.bf.outer_size
|
|
+ cts.bf.spi
|
|
+ cts.bf.seq_num0
|
|
+ cts.bf.seq_num1
|
|
+ cts.bf.seq_num_mask0
|
|
+ cts.bf.seq_num_mask1
|
|
+ cts.bf.seq_num_mask2
|
|
+ cts.bf.seq_num_mask3
|
|
+ cts.bf.iv0
|
|
+ cts.bf.iv1
|
|
+ cts.bf.iv2
|
|
+ cts.bf.iv3;
|
|
|
|
return sizeof(struct dynamic_sa_ctl) + offset * 4;
|
|
}
|
|
|
|
u32 get_dynamic_sa_iv_size(struct crypto4xx_ctx *ctx)
|
|
{
|
|
union dynamic_sa_contents cts;
|
|
|
|
if (ctx->direction == DIR_INBOUND)
|
|
cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents;
|
|
else
|
|
cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents;
|
|
return (cts.bf.iv0 + cts.bf.iv1 + cts.bf.iv2 + cts.bf.iv3) * 4;
|
|
}
|
|
|
|
u32 get_dynamic_sa_offset_key_field(struct crypto4xx_ctx *ctx)
|
|
{
|
|
union dynamic_sa_contents cts;
|
|
|
|
if (ctx->direction == DIR_INBOUND)
|
|
cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents;
|
|
else
|
|
cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents;
|
|
|
|
return sizeof(struct dynamic_sa_ctl);
|
|
}
|