971286cc51107f213e2ccef07954e404680f7359
[akaros.git] / kern / lib / crypto / 2stub.c
1 /* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
2  * Use of this source code is governed by a BSD-style license that can be
3  * found in the LICENSE file.
4  *
5  * Stub API implementations which should be implemented by the caller.
6  */
7
8 #include <stdarg.h>
9 #include <stdio.h>
10
11 #include "2sysincludes.h"
12 #include "2api.h"
13
14 __attribute__((weak))
15 void vb2ex_printf(const char *func, const char *fmt, ...)
16 {
17         va_list ap;
18         va_start(ap, fmt);
19         fprintf(stderr, "%s: ", func);
20         vfprintf(stderr, fmt, ap);
21         va_end(ap);
22 }
23
24 __attribute__((weak))
25 int vb2ex_tpm_clear_owner(struct vb2_context *ctx)
26 {
27         return VB2_ERROR_EX_TPM_CLEAR_OWNER_UNIMPLEMENTED;
28 }
29
30 __attribute__((weak))
31 int vb2ex_read_resource(struct vb2_context *ctx,
32                         enum vb2_resource_index index,
33                         uint32_t offset,
34                         void *buf,
35                         uint32_t size)
36 {
37         return VB2_ERROR_EX_READ_RESOURCE_UNIMPLEMENTED;
38 }
39
40 __attribute__((weak))
41 int vb2ex_hwcrypto_digest_init(enum vb2_hash_algorithm hash_alg,
42                                uint32_t data_size)
43 {
44         return VB2_ERROR_EX_HWCRYPTO_UNSUPPORTED;
45 }
46
47 __attribute__((weak))
48 int vb2ex_hwcrypto_digest_extend(const uint8_t *buf,
49                                  uint32_t size)
50 {
51         return VB2_ERROR_SHA_EXTEND_ALGORITHM;  /* Should not be called. */
52 }
53
54 __attribute__((weak))
55 int vb2ex_hwcrypto_digest_finalize(uint8_t *digest,
56                                    uint32_t digest_size)
57 {
58         return VB2_ERROR_SHA_FINALIZE_ALGORITHM; /* Should not be called. */
59 }