diff options
Diffstat (limited to 'comm/third_party/botan/src/lib/ffi/ffi_mac.cpp')
-rw-r--r-- | comm/third_party/botan/src/lib/ffi/ffi_mac.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/ffi/ffi_mac.cpp b/comm/third_party/botan/src/lib/ffi/ffi_mac.cpp new file mode 100644 index 0000000000..3b6cc3bef4 --- /dev/null +++ b/comm/third_party/botan/src/lib/ffi/ffi_mac.cpp @@ -0,0 +1,85 @@ +/* +* (C) 2015,2017 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#include <botan/ffi.h> +#include <botan/internal/ffi_util.h> +#include <botan/mac.h> + +extern "C" { + +using namespace Botan_FFI; + +BOTAN_FFI_DECLARE_STRUCT(botan_mac_struct, Botan::MessageAuthenticationCode, 0xA06E8FC1); + +int botan_mac_init(botan_mac_t* mac, const char* mac_name, uint32_t flags) + { + return ffi_guard_thunk(__func__, [=]() -> int { + if(!mac || !mac_name || flags != 0) + return BOTAN_FFI_ERROR_NULL_POINTER; + + std::unique_ptr<Botan::MessageAuthenticationCode> m = + Botan::MessageAuthenticationCode::create(mac_name); + + if(m == nullptr) + return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; + + *mac = new botan_mac_struct(m.release()); + return BOTAN_FFI_SUCCESS; + }); + } + +int botan_mac_destroy(botan_mac_t mac) + { + return BOTAN_FFI_CHECKED_DELETE(mac); + } + +int botan_mac_set_key(botan_mac_t mac, const uint8_t* key, size_t key_len) + { + return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.set_key(key, key_len); }); + } + +int botan_mac_output_length(botan_mac_t mac, size_t* out) + { + return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { *out = m.output_length(); }); + } + +int botan_mac_clear(botan_mac_t mac) + { + return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.clear(); }); + } + +int botan_mac_update(botan_mac_t mac, const uint8_t* buf, size_t len) + { + return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.update(buf, len); }); + } + +int botan_mac_final(botan_mac_t mac, uint8_t out[]) + { + return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.final(out); }); + } + +int botan_mac_name(botan_mac_t mac, char* name, size_t* name_len) + { + return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { + return write_str_output(name, name_len, m.name()); }); + } + +int botan_mac_get_keyspec(botan_mac_t mac, + size_t* out_minimum_keylength, + size_t* out_maximum_keylength, + size_t* out_keylength_modulo) + { + return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { + if(out_minimum_keylength) + *out_minimum_keylength = m.minimum_keylength(); + if(out_maximum_keylength) + *out_maximum_keylength = m.maximum_keylength(); + if(out_keylength_modulo) + *out_keylength_modulo = m.key_spec().keylength_multiple(); + }); + } + +} |