Rename axolotlpp as olm to avoid confusion with Axolotl-the-spec and Axolotl-the-OWS-libraries at moxie's request

1 files changed, 0 insertions, 580 deletions

diff --git a/src/axolotl.cpp b/src/axolotl.cpp
deleted file mode 100644
index 2586204..0000000
--- a/src/axolotl.cpp
+++ /dev/null
@@ -1,580 +0,0 @@
-/* Copyright 2015 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include "axolotl/axolotl.hh"
-#include "axolotl/session.hh"
-#include "axolotl/account.hh"
-#include "axolotl/base64.hh"
-#include "axolotl/cipher.hh"
-
-#include <new>
-#include <cstring>
-
-namespace {
-
-static AxolotlAccount * to_c(axolotl::Account * account) {
-    return reinterpret_cast<AxolotlAccount *>(account);
-}
-
-static AxolotlSession * to_c(axolotl::Session * account) {
-    return reinterpret_cast<AxolotlSession *>(account);
-}
-
-static axolotl::Account * from_c(AxolotlAccount * account) {
-    return reinterpret_cast<axolotl::Account *>(account);
-}
-
-static axolotl::Session * from_c(AxolotlSession * account) {
-    return reinterpret_cast<axolotl::Session *>(account);
-}
-
-static std::uint8_t * from_c(void * bytes) {
-    return reinterpret_cast<std::uint8_t *>(bytes);
-}
-
-static std::uint8_t const * from_c(void const * bytes) {
-    return reinterpret_cast<std::uint8_t const *>(bytes);
-}
-
-static const std::uint8_t CIPHER_KDF_INFO[] = "Pickle";
-
-static const axolotl::CipherAesSha256 PICKLE_CIPHER(
-    CIPHER_KDF_INFO, sizeof(CIPHER_KDF_INFO) -1
-);
-
-std::size_t enc_output_length(
-    size_t raw_length
-) {
-    std::size_t length = PICKLE_CIPHER.encrypt_ciphertext_length(raw_length);
-    length += PICKLE_CIPHER.mac_length();
-    return axolotl::encode_base64_length(length);
-}
-
-
-std::uint8_t * enc_output_pos(
-    std::uint8_t * output,
-    size_t raw_length
-) {
-    std::size_t length = PICKLE_CIPHER.encrypt_ciphertext_length(raw_length);
-    length += PICKLE_CIPHER.mac_length();
-    return output + axolotl::encode_base64_length(length) - length;
-}
-
-std::size_t enc_output(
-    std::uint8_t const * key, std::size_t key_length,
-    std::uint8_t * output, size_t raw_length
-) {
-    std::size_t ciphertext_length = PICKLE_CIPHER.encrypt_ciphertext_length(
-        raw_length
-    );
-    std::size_t length = ciphertext_length + PICKLE_CIPHER.mac_length();
-    std::size_t base64_length = axolotl::encode_base64_length(length);
-    std::uint8_t * raw_output = output + base64_length - length;
-    PICKLE_CIPHER.encrypt(
-        key, key_length,
-        raw_output, raw_length,
-        raw_output, ciphertext_length,
-        raw_output, length
-    );
-    axolotl::encode_base64(raw_output, length, output);
-    return raw_length;
-}
-
-std::size_t enc_input(
-    std::uint8_t const * key, std::size_t key_length,
-    std::uint8_t * input, size_t b64_length,
-    axolotl::ErrorCode & last_error
-) {
-    std::size_t enc_length = axolotl::decode_base64_length(b64_length);
-    if (enc_length == std::size_t(-1)) {
-        last_error = axolotl::ErrorCode::INVALID_BASE64;
-        return std::size_t(-1);
-    }
-    axolotl::decode_base64(input, b64_length, input);
-    std::size_t raw_length = enc_length - PICKLE_CIPHER.mac_length();
-    std::size_t result = PICKLE_CIPHER.decrypt(
-        key, key_length,
-        input, enc_length,
-        input, raw_length,
-        input, raw_length
-    );
-    if (result == std::size_t(-1)) {
-        last_error = axolotl::ErrorCode::BAD_ACCOUNT_KEY;
-    }
-    return result;
-}
-
-
-std::size_t b64_output_length(
-    size_t raw_length
-) {
-    return axolotl::encode_base64_length(raw_length);
-}
-
-std::uint8_t * b64_output_pos(
-    std::uint8_t * output,
-    size_t raw_length
-) {
-    return output + axolotl::encode_base64_length(raw_length) - raw_length;
-}
-
-std::size_t b64_output(
-    std::uint8_t * output, size_t raw_length
-) {
-    std::size_t base64_length = axolotl::encode_base64_length(raw_length);
-    std::uint8_t * raw_output = output + base64_length - raw_length;
-    axolotl::encode_base64(raw_output, raw_length, output);
-    return base64_length;
-}
-
-std::size_t b64_input(
-    std::uint8_t * input, size_t b64_length,
-    axolotl::ErrorCode & last_error
-) {
-    std::size_t raw_length = axolotl::decode_base64_length(b64_length);
-    if (raw_length == std::size_t(-1)) {
-        last_error = axolotl::ErrorCode::INVALID_BASE64;
-        return std::size_t(-1);
-    }
-    axolotl::decode_base64(input, b64_length, input);
-    return raw_length;
-}
-
-const char * errors[9] {
-    "SUCCESS",
-    "NOT_ENOUGH_RANDOM",
-    "OUTPUT_BUFFER_TOO_SMALL",
-    "BAD_MESSAGE_VERSION",
-    "BAD_MESSAGE_FORMAT",
-    "BAD_MESSAGE_MAC",
-    "BAD_MESSAGE_KEY_ID",
-    "INVALID_BASE64",
-    "BAD_ACCOUNT_KEY",
-};
-
-} // namespace
-
-
-extern "C" {
-
-
-size_t axolotl_error() {
-    return std::size_t(-1);
-}
-
-
-const char * axolotl_account_last_error(
-    AxolotlSession * account
-) {
-    unsigned error = unsigned(from_c(account)->last_error);
-    if (error < 9) {
-        return errors[error];
-    } else {
-        return "UNKNOWN_ERROR";
-    }
-}
-
-
-const char * axolotl_session_last_error(
-    AxolotlSession * session
-) {
-    unsigned error = unsigned(from_c(session)->last_error);
-    if (error < 9) {
-        return errors[error];
-    } else {
-        return "UNKNOWN_ERROR";
-    }
-}
-
-
-size_t axolotl_account_size() {
-    return sizeof(axolotl::Account);
-}
-
-
-size_t axolotl_session_size() {
-    return sizeof(axolotl::Session);
-}
-
-
-AxolotlAccount * axolotl_account(
-    void * memory
-) {
-    return to_c(new(memory) axolotl::Account());
-}
-
-
-AxolotlSession * axolotl_session(
-    void * memory
-) {
-    return to_c(new(memory) axolotl::Session());
-}
-
-
-size_t axolotl_pickle_account_length(
-    AxolotlAccount * account
-) {
-    return enc_output_length(pickle_length(*from_c(account)));
-}
-
-
-size_t axolotl_pickle_session_length(
-    AxolotlSession * session
-) {
-    return enc_output_length(pickle_length(*from_c(session)));
-}
-
-
-size_t axolotl_pickle_account(
-    AxolotlAccount * account,
-    void const * key, size_t key_length,
-    void * pickled, size_t pickled_length
-) {
-    axolotl::Account & object = *from_c(account);
-    std::size_t raw_length = pickle_length(object);
-    if (pickled_length < enc_output_length(raw_length)) {
-        object.last_error = axolotl::ErrorCode::OUTPUT_BUFFER_TOO_SMALL;
-        return size_t(-1);
-    }
-    pickle(enc_output_pos(from_c(pickled), raw_length), object);
-    return enc_output(from_c(key), key_length, from_c(pickled), raw_length);
-}
-
-
-size_t axolotl_pickle_session(
-    AxolotlSession * session,
-    void const * key, size_t key_length,
-    void * pickled, size_t pickled_length
-) {
-    axolotl::Session & object = *from_c(session);
-    std::size_t raw_length = pickle_length(object);
-    if (pickled_length < enc_output_length(raw_length)) {
-        object.last_error = axolotl::ErrorCode::OUTPUT_BUFFER_TOO_SMALL;
-        return size_t(-1);
-    }
-    pickle(enc_output_pos(from_c(pickled), raw_length), object);
-    return enc_output(from_c(key), key_length, from_c(pickled), raw_length);
-}
-
-
-size_t axolotl_unpickle_account(
-    AxolotlAccount * account,
-    void const * key, size_t key_length,
-    void * pickled, size_t pickled_length
-) {
-    axolotl::Account & object = *from_c(account);
-    std::uint8_t * const pos = from_c(pickled);
-    std::size_t raw_length = enc_input(
-        from_c(key), key_length, pos, pickled_length, object.last_error
-    );
-    if (raw_length == std::size_t(-1)) {
-        return std::size_t(-1);
-    }
-    std::uint8_t * const end = pos + raw_length;
-    unpickle(pos, end, object);
-    return pickled_length;
-}
-
-
-size_t axolotl_unpickle_session(
-    AxolotlSession * session,
-    void const * key, size_t key_length,
-    void * pickled, size_t pickled_length
-) {
-    axolotl::Session & object = *from_c(session);
-    std::uint8_t * const pos = from_c(pickled);
-    std::size_t raw_length = enc_input(
-        from_c(key), key_length, pos, pickled_length, object.last_error
-    );
-    if (raw_length == std::size_t(-1)) {
-        return std::size_t(-1);
-    }
-    std::uint8_t * const end = pos + raw_length;
-    unpickle(pos, end, object);
-    return pickled_length;
-}
-
-
-size_t axolotl_create_account_random_length(
-    AxolotlAccount * account
-) {
-    return from_c(account)->new_account_random_length();
-}
-
-
-size_t axolotl_create_account(
-    AxolotlAccount * account,
-    void const * random, size_t random_length
-) {
-    return from_c(account)->new_account(from_c(random), random_length);
-}
-
-namespace {
-
-static const std::size_t OUTPUT_KEY_LENGTH = 2 + 10 + 2 +
-        axolotl::encode_base64_length(32) + 3;
-
-void output_key(
-    axolotl::LocalKey const & key,
-    std::uint8_t sep,
-    std::uint8_t * output
-) {
-    output[0] = sep;
-    output[1] = '[';
-    std::memset(output + 2, ' ', 10);
-    uint32_t value = key.id;
-    uint8_t * number = output + 11;
-    *number = '0' + value % 10;
-    value /= 10;
-    while (value) {
-        *(--number) = '0' + value % 10;
-        value /= 10;
-    }
-    output[12] = ',';
-    output[13] = '"';
-    axolotl::encode_base64(key.key.public_key, 32, output + 14);
-    output[OUTPUT_KEY_LENGTH - 3] = '"';
-    output[OUTPUT_KEY_LENGTH - 2] = ']';
-    output[OUTPUT_KEY_LENGTH - 1] = '\n';
-}
-
-} // namespace
-
-
-size_t axolotl_account_identity_keys_length(
-    AxolotlAccount * account
-) {
-    return OUTPUT_KEY_LENGTH + 1;
-}
-
-
-size_t axolotl_account_identity_keys(
-    AxolotlAccount * account,
-    void * identity_keys, size_t identity_key_length
-) {
-    std::size_t length = axolotl_account_identity_keys_length(account);
-    if (identity_key_length < length) {
-        from_c(account)->last_error =
-            axolotl::ErrorCode::OUTPUT_BUFFER_TOO_SMALL;
-        return size_t(-1);
-    }
-    std::uint8_t * output = from_c(identity_keys);
-    output_key(from_c(account)->identity_key, '[', output);
-    output += OUTPUT_KEY_LENGTH;
-    output[0] = ']';
-    return length;
-}
-
-
-size_t axolotl_account_one_time_keys_length(
-    AxolotlAccount * account
-) {
-    size_t count = from_c(account)->one_time_keys.size();
-    return OUTPUT_KEY_LENGTH * (count + 1) + 1;
-}
-
-
-size_t axolotl_account_one_time_keys(
-    AxolotlAccount * account,
-    void * identity_keys, size_t identity_key_length
-) {
-    std::size_t length = axolotl_account_one_time_keys_length(account);
-    if (identity_key_length < length) {
-        from_c(account)->last_error =
-            axolotl::ErrorCode::OUTPUT_BUFFER_TOO_SMALL;
-        return size_t(-1);
-    }
-    std::uint8_t * output = from_c(identity_keys);
-    output_key(from_c(account)->last_resort_one_time_key, '[', output);
-    output += OUTPUT_KEY_LENGTH;
-    for (auto const & key : from_c(account)->one_time_keys) {
-        output_key(key, ',', output);
-        output += OUTPUT_KEY_LENGTH;
-    }
-    output[0] = ']';
-    return length;
-}
-
-
-size_t axolotl_create_outbound_session_random_length(
-    AxolotlSession * session
-) {
-    return from_c(session)->new_outbound_session_random_length();
-}
-
-size_t axolotl_create_outbound_session(
-    AxolotlSession * session,
-    AxolotlAccount * account,
-    void const * their_identity_key, size_t their_identity_key_length,
-    unsigned their_one_time_key_id,
-    void const * their_one_time_key, size_t their_one_time_key_length,
-    void const * random, size_t random_length
-) {
-    if (axolotl::decode_base64_length(their_identity_key_length) != 32
-            || axolotl::decode_base64_length(their_one_time_key_length) != 32
-    ) {
-        from_c(session)->last_error = axolotl::ErrorCode::INVALID_BASE64;
-        return std::size_t(-1);
-    }
-    axolotl::Curve25519PublicKey identity_key;
-    axolotl::RemoteKey one_time_key;
-
-    axolotl::decode_base64(
-        from_c(their_identity_key), their_identity_key_length,
-        identity_key.public_key
-    );
-    one_time_key.id = their_one_time_key_id;
-    axolotl::decode_base64(
-        from_c(their_one_time_key), their_one_time_key_length,
-        one_time_key.key.public_key
-    );
-
-    return from_c(session)->new_outbound_session(
-        *from_c(account), identity_key, one_time_key,
-        from_c(random), random_length
-    );
-}
-
-
-size_t axolotl_create_inbound_session(
-    AxolotlSession * session,
-    AxolotlAccount * account,
-    void * one_time_key_message, size_t message_length
-) {
-    std::size_t raw_length = b64_input(
-        from_c(one_time_key_message), message_length, from_c(session)->last_error
-    );
-    if (raw_length == std::size_t(-1)) {
-        return std::size_t(-1);
-    }
-    return from_c(session)->new_inbound_session(
-        *from_c(account), from_c(one_time_key_message), raw_length
-    );
-}
-
-
-size_t axolotl_matches_inbound_session(
-    AxolotlSession * session,
-    void * one_time_key_message, size_t message_length
-) {
-    std::size_t raw_length = b64_input(
-        from_c(one_time_key_message), message_length, from_c(session)->last_error
-    );
-    if (raw_length == std::size_t(-1)) {
-        return std::size_t(-1);
-    }
-    bool matches = from_c(session)->matches_inbound_session(
-        from_c(one_time_key_message), raw_length
-    );
-    return matches ? 1 : 0;
-}
-
-
-size_t axolotl_remove_one_time_keys(
-    AxolotlAccount * account,
-    AxolotlSession * session
-) {
-    size_t result = from_c(account)->remove_key(
-        from_c(session)->bob_one_time_key_id
-    );
-    if (result == std::size_t(-1)) {
-        from_c(account)->last_error = axolotl::ErrorCode::BAD_MESSAGE_KEY_ID;
-    }
-    return result;
-}
-
-
-size_t axolotl_encrypt_message_type(
-    AxolotlSession * session
-) {
-    return size_t(from_c(session)->encrypt_message_type());
-}
-
-
-size_t axolotl_encrypt_random_length(
-    AxolotlSession * session
-) {
-    return from_c(session)->encrypt_random_length();
-}
-
-
-size_t axolotl_encrypt_message_length(
-    AxolotlSession * session,
-    size_t plaintext_length
-) {
-    return b64_output_length(
-        from_c(session)->encrypt_message_length(plaintext_length)
-    );
-}
-
-
-size_t axolotl_encrypt(
-    AxolotlSession * session,
-    void const * plaintext, size_t plaintext_length,
-    void const * random, size_t random_length,
-    void * message, size_t message_length
-) {
-    std::size_t raw_length = from_c(session)->encrypt_message_length(
-        plaintext_length
-    );
-    if (message_length < raw_length) {
-        from_c(session)->last_error =
-            axolotl::ErrorCode::OUTPUT_BUFFER_TOO_SMALL;
-        return std::size_t(-1);
-    }
-    from_c(session)->encrypt(
-        from_c(plaintext), plaintext_length,
-        from_c(random), random_length,
-        b64_output_pos(from_c(message), raw_length), raw_length
-    );
-    return b64_output(from_c(message), raw_length);
-}
-
-
-size_t axolotl_decrypt_max_plaintext_length(
-    AxolotlSession * session,
-    size_t message_type,
-    void * message, size_t message_length
-) {
-    std::size_t raw_length = b64_input(
-        from_c(message), message_length, from_c(session)->last_error
-    );
-    if (raw_length == std::size_t(-1)) {
-        return std::size_t(-1);
-    }
-    return from_c(session)->decrypt_max_plaintext_length(
-        axolotl::MessageType(message_type), from_c(message), raw_length
-    );
-}
-
-
-size_t axolotl_decrypt(
-    AxolotlSession * session,
-    size_t message_type,
-    void * message, size_t message_length,
-    void * plaintext, size_t max_plaintext_length
-) {
-    std::size_t raw_length = b64_input(
-        from_c(message), message_length, from_c(session)->last_error
-    );
-    if (raw_length == std::size_t(-1)) {
-        return std::size_t(-1);
-    }
-    return from_c(session)->decrypt(
-        axolotl::MessageType(message_type), from_c(message), raw_length,
-        from_c(plaintext), max_plaintext_length
-    );
-}
-
-}