1 /* Copyright 2021 The BoringSSL Authors
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15 #include <inttypes.h>
16 #include <stdio.h>
17 #include <string.h>
18 #include <unistd.h>
19 #include <string>
20
21 #include <openssl/crypto.h>
22 #include <openssl/span.h>
23
24 #include "modulewrapper.h"
25
26
EqString(bssl::Span<const uint8_t> cmd,const char * str)27 static bool EqString(bssl::Span<const uint8_t> cmd, const char *str) {
28 return cmd.size() == strlen(str) && memcmp(str, cmd.data(), cmd.size()) == 0;
29 }
30
main(int argc,char ** argv)31 int main(int argc, char **argv) {
32 if (argc == 2 && strcmp(argv[1], "--version") == 0) {
33 printf("Built for architecture: ");
34
35 #if defined(OPENSSL_X86_64)
36 puts("x86-64 (64-bit)");
37 #elif defined(OPENSSL_ARM)
38 puts("ARM (32-bit)");
39 #elif defined(OPENSSL_AARCH64)
40 puts("aarch64 (64-bit)");
41 #else
42 #error "FIPS build not supported on this architecture"
43 #endif
44
45 if (!FIPS_mode()) {
46 printf("Module not in FIPS mode\n");
47 abort();
48 }
49 printf("Module is in FIPS mode\n");
50
51 const uint32_t module_version = FIPS_version();
52 if (module_version == 0) {
53 printf("No module version set\n");
54 abort();
55 }
56 printf("Module: '%s', version: %" PRIu32 " hash:\n", FIPS_module_name(),
57 module_version);
58
59 #if !defined(BORINGSSL_FIPS)
60 // |module_version| will be zero, so the non-FIPS build will never get
61 // this far.
62 printf("Non zero module version in non-FIPS build - should not happen!\n");
63 abort();
64 #elif defined(OPENSSL_ASAN)
65 printf("(not available when compiled for ASAN)");
66 #else
67 const uint8_t *module_hash = FIPS_module_hash();
68 for (size_t i = 0; i < SHA256_DIGEST_LENGTH; i++) {
69 printf("%02x", module_hash[i]);
70 }
71 printf("\n");
72 #endif
73 printf("Hardware acceleration enabled: %s\n",
74 CRYPTO_has_asm() ? "yes" : "no");
75
76 return 0;
77 } else if (argc != 1) {
78 fprintf(stderr, "Usage: %s [--version]\n", argv[0]);
79 return 4;
80 }
81
82 // modulewrapper buffers responses to the greatest degree allowed in order to
83 // fully exercise the async handling in acvptool.
84 std::unique_ptr<bssl::acvp::RequestBuffer> buffer =
85 bssl::acvp::RequestBuffer::New();
86 const bssl::acvp::ReplyCallback write_reply = std::bind(
87 bssl::acvp::WriteReplyToFd, STDOUT_FILENO, std::placeholders::_1);
88 const bssl::acvp::ReplyCallback buffer_reply =
89 std::bind(bssl::acvp::WriteReplyToBuffer, std::placeholders::_1);
90
91 for (;;) {
92 const bssl::Span<const bssl::Span<const uint8_t>> args =
93 ParseArgsFromFd(STDIN_FILENO, buffer.get());
94 if (args.empty()) {
95 return 1;
96 }
97
98 if (EqString(args[0], "flush")) {
99 if (!bssl::acvp::FlushBuffer(STDOUT_FILENO)) {
100 abort();
101 }
102 continue;
103 }
104
105 const bssl::acvp::Handler handler = bssl::acvp::FindHandler(args);
106 if (!handler) {
107 return 2;
108 }
109
110 auto &reply_callback =
111 EqString(args[0], "getConfig") ? write_reply : buffer_reply;
112 if (!handler(args.subspan(1).data(), reply_callback)) {
113 const std::string name(reinterpret_cast<const char *>(args[0].data()),
114 args[0].size());
115 fprintf(stderr, "\'%s\' operation failed.\n", name.c_str());
116 return 3;
117 }
118 }
119 }
120