/src/Botan-3.4.0/src/lib/ffi/ffi_mac.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * (C) 2015,2017 Jack Lloyd |
3 | | * |
4 | | * Botan is released under the Simplified BSD License (see license.txt) |
5 | | */ |
6 | | |
7 | | #include <botan/ffi.h> |
8 | | |
9 | | #include <botan/mac.h> |
10 | | #include <botan/internal/ffi_util.h> |
11 | | |
12 | | extern "C" { |
13 | | |
14 | | using namespace Botan_FFI; |
15 | | |
16 | | BOTAN_FFI_DECLARE_STRUCT(botan_mac_struct, Botan::MessageAuthenticationCode, 0xA06E8FC1); |
17 | | |
18 | 0 | int botan_mac_init(botan_mac_t* mac, const char* mac_name, uint32_t flags) { |
19 | 0 | return ffi_guard_thunk(__func__, [=]() -> int { |
20 | 0 | if(!mac || !mac_name || flags != 0) { |
21 | 0 | return BOTAN_FFI_ERROR_NULL_POINTER; |
22 | 0 | } |
23 | | |
24 | 0 | std::unique_ptr<Botan::MessageAuthenticationCode> m = Botan::MessageAuthenticationCode::create(mac_name); |
25 | |
|
26 | 0 | if(m == nullptr) { |
27 | 0 | return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; |
28 | 0 | } |
29 | | |
30 | 0 | *mac = new botan_mac_struct(std::move(m)); |
31 | 0 | return BOTAN_FFI_SUCCESS; |
32 | 0 | }); |
33 | 0 | } |
34 | | |
35 | 0 | int botan_mac_destroy(botan_mac_t mac) { |
36 | 0 | return BOTAN_FFI_CHECKED_DELETE(mac); |
37 | 0 | } |
38 | | |
39 | 0 | int botan_mac_set_key(botan_mac_t mac, const uint8_t* key, size_t key_len) { |
40 | 0 | return BOTAN_FFI_VISIT(mac, [=](auto& m) { m.set_key(key, key_len); }); |
41 | 0 | } |
42 | | |
43 | 0 | int botan_mac_set_nonce(botan_mac_t mac, const uint8_t* nonce, size_t nonce_len) { |
44 | 0 | return BOTAN_FFI_VISIT(mac, [=](auto& m) { m.start(nonce, nonce_len); }); |
45 | 0 | } |
46 | | |
47 | 0 | int botan_mac_output_length(botan_mac_t mac, size_t* out) { |
48 | 0 | return BOTAN_FFI_VISIT(mac, [=](const auto& m) { *out = m.output_length(); }); |
49 | 0 | } |
50 | | |
51 | 0 | int botan_mac_clear(botan_mac_t mac) { |
52 | 0 | return BOTAN_FFI_VISIT(mac, [](auto& m) { m.clear(); }); |
53 | 0 | } |
54 | | |
55 | 0 | int botan_mac_update(botan_mac_t mac, const uint8_t* buf, size_t len) { |
56 | 0 | return BOTAN_FFI_VISIT(mac, [=](auto& m) { m.update(buf, len); }); |
57 | 0 | } |
58 | | |
59 | 0 | int botan_mac_final(botan_mac_t mac, uint8_t out[]) { |
60 | 0 | return BOTAN_FFI_VISIT(mac, [=](auto& m) { m.final(out); }); |
61 | 0 | } |
62 | | |
63 | 0 | int botan_mac_name(botan_mac_t mac, char* name, size_t* name_len) { |
64 | 0 | return BOTAN_FFI_VISIT(mac, [=](const auto& m) { return write_str_output(name, name_len, m.name()); }); |
65 | 0 | } |
66 | | |
67 | | int botan_mac_get_keyspec(botan_mac_t mac, |
68 | | size_t* out_minimum_keylength, |
69 | | size_t* out_maximum_keylength, |
70 | 0 | size_t* out_keylength_modulo) { |
71 | 0 | return BOTAN_FFI_VISIT(mac, [=](auto& m) { |
72 | 0 | if(out_minimum_keylength) |
73 | 0 | *out_minimum_keylength = m.minimum_keylength(); |
74 | 0 | if(out_maximum_keylength) |
75 | 0 | *out_maximum_keylength = m.maximum_keylength(); |
76 | 0 | if(out_keylength_modulo) |
77 | 0 | *out_keylength_modulo = m.key_spec().keylength_multiple(); |
78 | 0 | }); |
79 | 0 | } |
80 | | } |