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8#include <common.h>
9#include <malloc.h>
10#include <memalign.h>
11#include <fsl_sec.h>
12#include <linux/errno.h>
13#include "jobdesc.h"
14#include "desc.h"
15#include "jr.h"
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28
29int blob_decap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
30{
31 int ret, size, i = 0;
32 u32 *desc;
33
34 if (!IS_ALIGNED((uintptr_t)key_mod, ARCH_DMA_MINALIGN) ||
35 !IS_ALIGNED((uintptr_t)src, ARCH_DMA_MINALIGN) ||
36 !IS_ALIGNED((uintptr_t)dst, ARCH_DMA_MINALIGN)) {
37 puts("Error: blob_decap: Address arguments are not aligned!\n");
38 return -EINVAL;
39 }
40
41 printf("\nDecapsulating blob to get data\n");
42 desc = malloc_cache_aligned(sizeof(int) * MAX_CAAM_DESCSIZE);
43 if (!desc) {
44 debug("Not enough memory for descriptor allocation\n");
45 return -ENOMEM;
46 }
47
48 size = ALIGN(16, ARCH_DMA_MINALIGN);
49 flush_dcache_range((unsigned long)key_mod,
50 (unsigned long)key_mod + size);
51
52 size = ALIGN(BLOB_SIZE(len), ARCH_DMA_MINALIGN);
53 flush_dcache_range((unsigned long)src,
54 (unsigned long)src + size);
55
56 inline_cnstr_jobdesc_blob_decap(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
62 size = ALIGN(sizeof(int) * MAX_CAAM_DESCSIZE, ARCH_DMA_MINALIGN);
63 flush_dcache_range((unsigned long)desc,
64 (unsigned long)desc + size);
65
66 ret = run_descriptor_jr(desc);
67
68 if (ret) {
69 printf("Error in blob decapsulation: %d\n", ret);
70 } else {
71 size = ALIGN(len, ARCH_DMA_MINALIGN);
72 invalidate_dcache_range((unsigned long)dst,
73 (unsigned long)dst + size);
74
75 puts("Blob decapsulation successful.\n");
76 }
77
78 free(desc);
79 return ret;
80}
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93
94int blob_encap(u8 *key_mod, u8 *src, u8 *dst, u32 len)
95{
96 int ret, size, i = 0;
97 u32 *desc;
98
99 if (!IS_ALIGNED((uintptr_t)key_mod, ARCH_DMA_MINALIGN) ||
100 !IS_ALIGNED((uintptr_t)src, ARCH_DMA_MINALIGN) ||
101 !IS_ALIGNED((uintptr_t)dst, ARCH_DMA_MINALIGN)) {
102 puts("Error: blob_encap: Address arguments are not aligned!\n");
103 return -EINVAL;
104 }
105
106 printf("\nEncapsulating data to form blob\n");
107 desc = malloc_cache_aligned(sizeof(int) * MAX_CAAM_DESCSIZE);
108 if (!desc) {
109 debug("Not enough memory for descriptor allocation\n");
110 return -ENOMEM;
111 }
112
113 size = ALIGN(16, ARCH_DMA_MINALIGN);
114 flush_dcache_range((unsigned long)key_mod,
115 (unsigned long)key_mod + size);
116
117 size = ALIGN(len, ARCH_DMA_MINALIGN);
118 flush_dcache_range((unsigned long)src,
119 (unsigned long)src + size);
120
121 inline_cnstr_jobdesc_blob_encap(desc, key_mod, src, dst, len);
122
123 debug("Descriptor dump:\n");
124 for (i = 0; i < 14; i++)
125 debug("Word[%d]: %08x\n", i, *(desc + i));
126
127 size = ALIGN(sizeof(int) * MAX_CAAM_DESCSIZE, ARCH_DMA_MINALIGN);
128 flush_dcache_range((unsigned long)desc,
129 (unsigned long)desc + size);
130
131 ret = run_descriptor_jr(desc);
132
133 if (ret) {
134 printf("Error in blob encapsulation: %d\n", ret);
135 } else {
136 size = ALIGN(BLOB_SIZE(len), ARCH_DMA_MINALIGN);
137 invalidate_dcache_range((unsigned long)dst,
138 (unsigned long)dst + size);
139
140 puts("Blob encapsulation successful.\n");
141 }
142
143 free(desc);
144 return ret;
145}
146
147#ifdef CONFIG_CMD_DEKBLOB
148int blob_dek(const u8 *src, u8 *dst, u8 len)
149{
150 int ret, size, i = 0;
151 u32 *desc;
152
153 int out_sz = WRP_HDR_SIZE + len + KEY_BLOB_SIZE + MAC_SIZE;
154
155 puts("\nEncapsulating provided DEK to form blob\n");
156 desc = memalign(ARCH_DMA_MINALIGN,
157 sizeof(uint32_t) * DEK_BLOB_DESCSIZE);
158 if (!desc) {
159 debug("Not enough memory for descriptor allocation\n");
160 return -ENOMEM;
161 }
162
163 ret = inline_cnstr_jobdesc_blob_dek(desc, src, dst, len);
164 if (ret) {
165 debug("Error in Job Descriptor Construction: %d\n", ret);
166 } else {
167 size = roundup(sizeof(uint32_t) * DEK_BLOB_DESCSIZE,
168 ARCH_DMA_MINALIGN);
169 flush_dcache_range((unsigned long)desc,
170 (unsigned long)desc + size);
171 size = roundup(sizeof(uint8_t) * out_sz, ARCH_DMA_MINALIGN);
172 flush_dcache_range((unsigned long)dst,
173 (unsigned long)dst + size);
174
175 ret = run_descriptor_jr(desc);
176 }
177
178 if (ret) {
179 debug("Error in Encapsulation %d\n", ret);
180 goto err;
181 }
182
183 size = roundup(out_sz, ARCH_DMA_MINALIGN);
184 invalidate_dcache_range((unsigned long)dst, (unsigned long)dst+size);
185
186 puts("DEK Blob\n");
187 for (i = 0; i < out_sz; i++)
188 printf("%02X", ((uint8_t *)dst)[i]);
189 printf("\n");
190
191err:
192 free(desc);
193 return ret;
194}
195#endif
196