1 /* Copyright (c) 2021, Google Inc.
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 <stdio.h>
16 #include <string>
17 #include <string.h>
18 #include <unistd.h>
19
20 #include <openssl/crypto.h>
21 #include <openssl/span.h>
22
23 #include "modulewrapper.h"
24
25
EqString(bssl::Span<const uint8_t> cmd,const char * str)26 static bool EqString(bssl::Span<const uint8_t> cmd, const char *str) {
27 return cmd.size() == strlen(str) && memcmp(str, cmd.data(), cmd.size()) == 0;
28 }
29
main(int argc,char ** argv)30 int main(int argc, char **argv) {
31 if (argc == 2 && strcmp(argv[1], "--version") == 0) {
32 printf("Built for architecture: ");
33
34 #if defined(OPENSSL_X86_64)
35 puts("x86-64 (64-bit)");
36 #elif defined(OPENSSL_ARM)
37 puts("ARM (32-bit)");
38 #elif defined(OPENSSL_AARCH64)
39 puts("aarch64 (64-bit)");
40 #else
41 #error "FIPS build not supported on this architecture"
42 #endif
43
44 printf("Hardware acceleration enabled: %s\n",
45 CRYPTO_has_asm() ? "yes" : "no");
46
47 return 0;
48 } else if (argc != 1) {
49 fprintf(stderr, "Usage: %s [--version]\n", argv[0]);
50 return 4;
51 }
52
53 // modulewrapper buffers responses to the greatest degree allowed in order to
54 // fully exercise the async handling in acvptool.
55 std::unique_ptr<bssl::acvp::RequestBuffer> buffer =
56 bssl::acvp::RequestBuffer::New();
57 const bssl::acvp::ReplyCallback write_reply = std::bind(
58 bssl::acvp::WriteReplyToFd, STDOUT_FILENO, std::placeholders::_1);
59 const bssl::acvp::ReplyCallback buffer_reply =
60 std::bind(bssl::acvp::WriteReplyToBuffer, std::placeholders::_1);
61
62 for (;;) {
63 const bssl::Span<const bssl::Span<const uint8_t>> args =
64 ParseArgsFromFd(STDIN_FILENO, buffer.get());
65 if (args.empty()) {
66 return 1;
67 }
68
69 if (EqString(args[0], "flush")) {
70 if (!bssl::acvp::FlushBuffer(STDOUT_FILENO)) {
71 abort();
72 }
73 continue;
74 }
75
76 const bssl::acvp::Handler handler = bssl::acvp::FindHandler(args);
77 if (!handler) {
78 return 2;
79 }
80
81 auto &reply_callback =
82 EqString(args[0], "getConfig") ? write_reply : buffer_reply;
83 if (!handler(args.subspan(1).data(), reply_callback)) {
84 const std::string name(reinterpret_cast<const char *>(args[0].data()),
85 args[0].size());
86 fprintf(stderr, "\'%s\' operation failed.\n", name.c_str());
87 return 3;
88 }
89 }
90 };
91