LXR uboot/drivers/crypto/fsl/fsl

   1/*
   2 * Copyright 2014 Freescale Semiconductor, Inc.
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 *
   6 */
   7
   8#include <common.h>
   9#include <malloc.h>
  10#include <fsl_sec.h>
  11#include <linux/errno.h>
  12#include "jobdesc.h"
  13#include "desc.h"
  14#include "jr.h"
  15
  16int blob_decap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
  17{
  18        int ret, i = 0;
  19        u32 *desc;
  20
  21        printf("\nDecapsulating blob to get data\n");
  22        desc = malloc(sizeof(int) * MAX_CAAM_DESCSIZE);
  23        if (!desc) {
  24                debug("Not enough memory for descriptor allocation\n");
  25                return -1;
  26        }
  27
  28        inline_cnstr_jobdesc_blob_decap(desc, key_mod, src, dst, len);
  29
  30        debug("Descriptor dump:\n");
  31        for (i = 0; i < 14; i++)
  32                debug("Word[%d]: %08x\n", i, *(desc + i));
  33        ret = run_descriptor_jr(desc);
  34
  35        if (ret)
  36                printf("Error in Decapsulation %d\n", ret);
  37        else
  38                printf("Decapsulation Success\n");
  39
  40        free(desc);
  41        return ret;
  42}
  43
  44int blob_encap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
  45{
  46        int ret, i = 0;
  47        u32 *desc;
  48
  49        printf("\nEncapsulating data to form blob\n");
  50        desc = malloc(sizeof(int) * MAX_CAAM_DESCSIZE);
  51        if (!desc) {
  52                debug("Not enough memory for descriptor allocation\n");
  53                return -1;
  54        }
  55
  56        inline_cnstr_jobdesc_blob_encap(desc, key_mod, src, dst, len);
  57
  58        debug("Descriptor dump:\n");
  59        for (i = 0; i < 14; i++)
  60                debug("Word[%d]: %08x\n", i, *(desc + i));
  61        ret = run_descriptor_jr(desc);
  62
  63        if (ret)
  64                printf("Error in Encapsulation %d\n", ret);
  65        else
  66                printf("Encapsulation Success\n");
  67
  68        free(desc);
  69        return ret;
  70}
  71
  72#ifdef CONFIG_CMD_DEKBLOB
  73int blob_dek(const u8 *src, u8 *dst, u8 len)
  74{
  75        int ret, size, i = 0;
  76        u32 *desc;
  77
  78        int out_sz =  WRP_HDR_SIZE + len + KEY_BLOB_SIZE + MAC_SIZE;
  79
  80        puts("\nEncapsulating provided DEK to form blob\n");
  81        desc = memalign(ARCH_DMA_MINALIGN,
  82                        sizeof(uint32_t) * DEK_BLOB_DESCSIZE);
  83        if (!desc) {
  84                debug("Not enough memory for descriptor allocation\n");
  85                return -ENOMEM;
  86        }
  87
  88        ret = inline_cnstr_jobdesc_blob_dek(desc, src, dst, len);
  89        if (ret) {
  90                debug("Error in Job Descriptor Construction:  %d\n", ret);
  91        } else {
  92                size = roundup(sizeof(uint32_t) * DEK_BLOB_DESCSIZE,
  93                              ARCH_DMA_MINALIGN);
  94                flush_dcache_range((unsigned long)desc,
  95                                   (unsigned long)desc + size);
  96                size = roundup(sizeof(uint8_t) * out_sz, ARCH_DMA_MINALIGN);
  97                flush_dcache_range((unsigned long)dst,
  98                                   (unsigned long)dst + size);
  99
 100                ret = run_descriptor_jr(desc);
 101        }
 102
 103        if (ret) {
 104                debug("Error in Encapsulation %d\n", ret);
 105           goto err;
 106        }
 107
 108        size = roundup(out_sz, ARCH_DMA_MINALIGN);
 109        invalidate_dcache_range((unsigned long)dst, (unsigned long)dst+size);
 110
 111        puts("DEK Blob\n");
 112        for (i = 0; i < out_sz; i++)
 113                printf("%02X", ((uint8_t *)dst)[i]);
 114        printf("\n");
 115
 116err:
 117        free(desc);
 118        return ret;
 119}
 120#endif
 121