1 files changed, 89 insertions, 0 deletions
diff --git a/libs/libaxolotl/src/session_state.h b/libs/libaxolotl/src/session_state.h
new file mode 100644
index 0000000000..119e523fc9
--- /dev/null
+++ b/libs/libaxolotl/src/session_state.h
@@ -0,0 +1,89 @@
+#ifndef SESSION_STATE_H
+#define SESSION_STATE_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "axolotl_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*------------------------------------------------------------------------*/
+
+int session_state_create(session_state **state, axolotl_context *global_context);
+int session_state_serialize(axolotl_buffer **buffer, session_state *state);
+int session_state_deserialize(session_state **state, const uint8_t *data, size_t len, axolotl_context *global_context);
+int session_state_copy(session_state **state, session_state *other_state, axolotl_context *global_context);
+
+void session_state_set_session_version(session_state *state, uint32_t version);
+uint32_t session_state_get_session_version(const session_state *state);
+
+void session_state_set_local_identity_key(session_state *state, ec_public_key *identity_key);
+ec_public_key *session_state_get_local_identity_key(const session_state *state);
+
+void session_state_set_remote_identity_key(session_state *state, ec_public_key *identity_key);
+ec_public_key *session_state_get_remote_identity_key(const session_state *state);
+
+void session_state_set_root_key(session_state *state, ratchet_root_key *root_key);
+ratchet_root_key *session_state_get_root_key(const session_state *state);
+
+void session_state_set_previous_counter(session_state *state, uint32_t counter);
+uint32_t session_state_get_previous_counter(const session_state *state);
+
+void session_state_set_sender_chain(session_state *state, ec_key_pair *sender_ratchet_key_pair, ratchet_chain_key *chain_key);
+ec_public_key *session_state_get_sender_ratchet_key(const session_state *state);
+ec_key_pair *session_state_get_sender_ratchet_key_pair(const session_state *state);
+ratchet_chain_key *session_state_get_sender_chain_key(const session_state *state);
+int session_state_set_sender_chain_key(session_state *state, ratchet_chain_key *chain_key);
+int session_state_has_sender_chain(const session_state *state);
+
+int session_state_has_message_keys(session_state *state, ec_public_key *sender_ephemeral, uint32_t counter);
+int session_state_remove_message_keys(session_state *state,
+        ratchet_message_keys *message_keys_result,
+        ec_public_key *sender_ephemeral, uint32_t counter);
+int session_state_set_message_keys(session_state *state,
+        ec_public_key *sender_ephemeral, ratchet_message_keys *message_keys);
+
+int session_state_add_receiver_chain(session_state *state, ec_public_key *sender_ratchet_key, ratchet_chain_key *chain_key);
+int session_state_set_receiver_chain_key(session_state *state, ec_public_key *sender_ephemeral, ratchet_chain_key *chain_key);
+ratchet_chain_key *session_state_get_receiver_chain_key(session_state *state, ec_public_key *sender_ephemeral);
+
+void session_state_set_pending_key_exchange(session_state *state,
+        uint32_t sequence,
+        ec_key_pair *our_base_key, ec_key_pair *our_ratchet_key,
+        ratchet_identity_key_pair *our_identity_key);
+uint32_t session_state_get_pending_key_exchange_sequence(session_state *state);
+ec_key_pair *session_state_get_pending_key_exchange_base_key(const session_state *state);
+ec_key_pair *session_state_get_pending_key_exchange_ratchet_key(const session_state *state);
+ratchet_identity_key_pair *session_state_get_pending_key_exchange_identity_key(const session_state *state);
+int session_state_has_pending_key_exchange(const session_state *state);
+
+void session_state_set_unacknowledged_pre_key_message(session_state *state,
+        const uint32_t *pre_key_id, uint32_t signed_pre_key_id, ec_public_key *base_key);
+int session_state_unacknowledged_pre_key_message_has_pre_key_id(const session_state *state);
+uint32_t session_state_unacknowledged_pre_key_message_get_pre_key_id(const session_state *state);
+uint32_t session_state_unacknowledged_pre_key_message_get_signed_pre_key_id(const session_state *state);
+ec_public_key *session_state_unacknowledged_pre_key_message_get_base_key(const session_state *state);
+int session_state_has_unacknowledged_pre_key_message(const session_state *state);
+void session_state_clear_unacknowledged_pre_key_message(session_state *state);
+
+void session_state_set_remote_registration_id(session_state *state, uint32_t id);
+uint32_t session_state_get_remote_registration_id(const session_state *state);
+
+void session_state_set_local_registration_id(session_state *state, uint32_t id);
+uint32_t session_state_get_local_registration_id(const session_state *state);
+
+void session_state_set_needs_refresh(session_state *state, int value);
+int session_state_get_needs_refresh(const session_state *state);
+
+void session_state_set_alice_base_key(session_state *state, ec_public_key *key);
+ec_public_key *session_state_get_alice_base_key(const session_state *state);
+
+void session_state_destroy(axolotl_type_base *type);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SESSION_STATE_H */