Add c interface which wraps the cpp classes

1 files changed, 163 insertions, 0 deletions

diff --git a/include/axolotl/axolotl.hh b/include/axolotl/axolotl.hh
new file mode 100644
index 0000000..09276a9
--- /dev/null
+++ b/include/axolotl/axolotl.hh
@@ -0,0 +1,163 @@
+#ifndef AXOLOTL_HH_
+#define AXOLOTL_HH_
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static const size_t AXOLOTL_MESSAGE_TYPE_PRE_KEY = 0;
+static const size_t AXOLOTL_MESSAGE_TYPE_MESSAGE = 1;
+
+struct AxolotlAccount;
+struct AxolotlSession;
+
+size_t axolotl_account_size();
+
+size_t axolotl_session_size();
+
+AxolotlAccount * axolotl_account(
+    void * memory
+);
+
+AxolotlSession * axolotl_session(
+    void * memory
+);
+
+size_t axolotl_error();
+
+const char * axolotl_account_last_error(
+    AxolotlSession * account
+);
+
+const char * axolotl_session_last_error(
+    AxolotlSession * session
+);
+
+size_t axolotl_pickle_account_length(
+    AxolotlAccount * account
+);
+
+size_t axolotl_pickle_session_length(
+    AxolotlSession * session
+);
+
+size_t axolotl_pickle_account(
+    AxolotlAccount * account,
+    void const * key, size_t key_length,
+    void * pickled, size_t pickled_length
+);
+
+size_t axolotl_pickle_session(
+    AxolotlSession * session,
+    void const * key, size_t key_length,
+    void * pickled, size_t pickled_length
+);
+
+size_t axolotl_unpickle_account(
+    AxolotlAccount * account,
+    void const * key, size_t key_length,
+    void * pickled, size_t pickled_length
+);
+
+size_t axolotl_unpickle_session(
+    AxolotlSession * session,
+    void const * key, size_t key_length,
+    void * pickled, size_t pickled_length
+);
+
+size_t axolotl_create_account_random_length(
+    AxolotlAccount * account
+);
+
+size_t axolotl_create_account(
+    AxolotlAccount * account,
+    void const * random, size_t random_length
+);
+
+size_t axolotl_account_identity_keys_length(
+    AxolotlAccount * account
+);
+
+size_t axolotl_account_identity_keys(
+    AxolotlAccount * account,
+    void * identity_keys, size_t identity_key_length
+);
+
+size_t axolotl_account_one_time_keys_length(
+    AxolotlAccount * account
+);
+
+size_t axolotl_account_one_time_keys(
+    AxolotlAccount * account,
+    void * identity_keys, size_t identity_key_length
+);
+
+/* TODO: Add methods for marking keys as used, generating new keys, and
+ * tracking which keys have been uploaded to the central servers */
+
+size_t axolotl_create_outbound_session_random_length(
+    AxolotlSession * session
+);
+
+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
+);
+
+size_t axolotl_create_inbound_session(
+    AxolotlSession * session,
+    AxolotlAccount * account,
+    void * one_time_key_message, size_t message_length
+);
+
+size_t axolotl_matches_inbound_session(
+    AxolotlSession * session,
+    void * one_time_key_message, size_t message_length
+);
+
+size_t axolotl_encrypt_message_type(
+    AxolotlSession * session
+);
+
+size_t axolotl_encrypt_random_length(
+    AxolotlSession * session
+);
+
+size_t axolotl_encrypt_message_length(
+    AxolotlSession * session,
+    size_t 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
+);
+
+size_t axolotl_decrypt_max_plaintext_length(
+    AxolotlSession * session,
+    size_t message_type,
+    void * message, size_t message_length
+);
+
+size_t axolotl_decrypt(
+    AxolotlSession * session,
+    size_t message_type,
+    void * message, size_t message_length,
+    void * plaintext, size_t max_plaintext_length
+);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AXOLOTL_HH_ */