Make ctx global

1 files changed, 118 insertions, 118 deletions

diff --git a/src/protocols/ec25519_fhmqvc/handshake.c b/src/protocols/ec25519_fhmqvc/handshake.c
index dda798b..df53157 100644
--- a/src/protocols/ec25519_fhmqvc/handshake.c
+++ b/src/protocols/ec25519_fhmqvc/handshake.c
@@ -68,46 +68,46 @@ static void derive_key(fastd_sha256_t *out, size_t blocks, const uint32_t *salt,
 	fastd_hkdf_sha256_expand(out, blocks, &prk, info, sizeof(info));
 }
 
-static inline void supersede_session(fastd_context_t *ctx, fastd_peer_t *peer, const fastd_method_info_t *method) {
-	if (is_session_valid(ctx, &peer->protocol_state->session) && !is_session_valid(ctx, &peer->protocol_state->old_session)) {
+static inline void supersede_session(fastd_peer_t *peer, const fastd_method_info_t *method) {
+	if (is_session_valid(&peer->protocol_state->session) && !is_session_valid(&peer->protocol_state->old_session)) {
 		if (peer->protocol_state->old_session.method)
-			peer->protocol_state->old_session.method->provider->session_free(ctx, peer->protocol_state->old_session.method_state);
+			peer->protocol_state->old_session.method->provider->session_free(peer->protocol_state->old_session.method_state);
 		peer->protocol_state->old_session = peer->protocol_state->session;
 	}
 	else {
 		if (peer->protocol_state->session.method)
-			peer->protocol_state->session.method->provider->session_free(ctx, peer->protocol_state->session.method_state);
+			peer->protocol_state->session.method->provider->session_free(peer->protocol_state->session.method_state);
 	}
 
 	if (peer->protocol_state->old_session.method) {
 		if (peer->protocol_state->old_session.method != method) {
-			pr_debug(ctx, "method of %P has changed, terminating old session", peer);
-			peer->protocol_state->old_session.method->provider->session_free(ctx, peer->protocol_state->old_session.method_state);
+			pr_debug("method of %P has changed, terminating old session", peer);
+			peer->protocol_state->old_session.method->provider->session_free(peer->protocol_state->old_session.method_state);
 			peer->protocol_state->old_session = (protocol_session_t){};
 		}
 		else {
-			peer->protocol_state->old_session.method->provider->session_superseded(ctx, peer->protocol_state->old_session.method_state);
+			peer->protocol_state->old_session.method->provider->session_superseded(peer->protocol_state->old_session.method_state);
 		}
 	}
 }
 
-static inline bool new_session(fastd_context_t *ctx, fastd_peer_t *peer, const fastd_method_info_t *method, bool initiator,
+static inline bool new_session(fastd_peer_t *peer, const fastd_method_info_t *method, bool initiator,
 			       const aligned_int256_t *A, const aligned_int256_t *B, const aligned_int256_t *X, const aligned_int256_t *Y,
 			       const aligned_int256_t *sigma, const uint32_t *salt, uint64_t serial) {
 
-	supersede_session(ctx, peer, method);
+	supersede_session(peer, method);
 
 	if (salt) {
-		size_t blocks = block_count(method->provider->key_length(ctx, method->method), sizeof(fastd_sha256_t));
+		size_t blocks = block_count(method->provider->key_length(method->method), sizeof(fastd_sha256_t));
 		fastd_sha256_t secret[blocks];
 		derive_key(secret, blocks, salt, method->name, A, B, X, Y, sigma);
 
-		peer->protocol_state->session.method_state = method->provider->session_init(ctx, method->method, (const uint8_t*)secret, initiator);
+		peer->protocol_state->session.method_state = method->provider->session_init(method->method, (const uint8_t*)secret, initiator);
 	}
 	else {
 		fastd_sha256_t hash;
 		fastd_sha256_blocks(&hash, X->u32, Y->u32, A->u32, B->u32, sigma->u32, NULL);
-		peer->protocol_state->session.method_state = method->provider->session_init_compat(ctx, method->method, hash.b, HASHBYTES, initiator);
+		peer->protocol_state->session.method_state = method->provider->session_init_compat(method->method, hash.b, HASHBYTES, initiator);
 	}
 
 	if (!peer->protocol_state->session.method_state)
@@ -121,44 +121,44 @@ static inline bool new_session(fastd_context_t *ctx, fastd_peer_t *peer, const f
 	return true;
 }
 
-static bool establish(fastd_context_t *ctx, fastd_peer_t *peer, const fastd_method_info_t *method, fastd_socket_t *sock,
+static bool establish(fastd_peer_t *peer, const fastd_method_info_t *method, fastd_socket_t *sock,
 		      const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr, bool initiator,
 		      const aligned_int256_t *A, const aligned_int256_t *B, const aligned_int256_t *X, const aligned_int256_t *Y,
 		      const aligned_int256_t *sigma, const uint32_t *salt, uint64_t serial) {
 	if (serial <= peer->protocol_state->last_serial) {
-		pr_debug(ctx, "ignoring handshake from %P[%I] because of handshake key reuse", peer, remote_addr);
+		pr_debug("ignoring handshake from %P[%I] because of handshake key reuse", peer, remote_addr);
 		return false;
 	}
 
 	if (!salt && !method->provider->session_init_compat) {
-		pr_warn(ctx, "can't establish compat session with %P[%I] (method without compat support)", peer, remote_addr);
+		pr_warn("can't establish compat session with %P[%I] (method without compat support)", peer, remote_addr);
 		return false;
 	}
 
-	pr_verbose(ctx, "%I authorized as %P", remote_addr, peer);
+	pr_verbose("%I authorized as %P", remote_addr, peer);
 
-	if (!fastd_peer_claim_address(ctx, peer, sock, local_addr, remote_addr)) {
-		pr_warn(ctx, "can't set address %I which is used by a fixed peer", remote_addr);
-		fastd_peer_reset(ctx, peer);
+	if (!fastd_peer_claim_address(peer, sock, local_addr, remote_addr)) {
+		pr_warn("can't set address %I which is used by a fixed peer", remote_addr);
+		fastd_peer_reset(peer);
 		return false;
 	}
 
-	if (!new_session(ctx, peer, method, initiator, A, B, X, Y, sigma, salt, serial)) {
-		pr_error(ctx, "failed to initialize method session for %P (method `%s'%s)", peer, method->name, salt ? "" : " (compat mode)");
-		fastd_peer_reset(ctx, peer);
+	if (!new_session(peer, method, initiator, A, B, X, Y, sigma, salt, serial)) {
+		pr_error("failed to initialize method session for %P (method `%s'%s)", peer, method->name, salt ? "" : " (compat mode)");
+		fastd_peer_reset(peer);
 		return false;
 	}
 
-	peer->establish_handshake_timeout = fastd_in_seconds(ctx, conf.min_handshake_interval);
-	fastd_peer_seen(ctx, peer);
-	fastd_peer_set_established(ctx, peer);
+	peer->establish_handshake_timeout = fastd_in_seconds(conf.min_handshake_interval);
+	fastd_peer_seen(peer);
+	fastd_peer_set_established(peer);
 
-	pr_verbose(ctx, "new session with %P established using method `%s'%s.", peer, method->name, salt ? "" : " (compat mode)");
+	pr_verbose("new session with %P established using method `%s'%s.", peer, method->name, salt ? "" : " (compat mode)");
 
 	if (initiator)
-		fastd_peer_schedule_handshake_default(ctx, peer);
+		fastd_peer_schedule_handshake_default(peer);
 	else
-		fastd_protocol_ec25519_fhmqvc_send_empty(ctx, peer, &peer->protocol_state->session);
+		fastd_protocol_ec25519_fhmqvc_send_empty(peer, &peer->protocol_state->session);
 
 	return true;
 }
@@ -260,7 +260,7 @@ static bool update_shared_handshake_key(const fastd_peer_t *peer, const handshak
 	return true;
 }
 
-static void clear_shared_handshake_key(fastd_context_t *ctx UNUSED, const fastd_peer_t *peer) {
+static void clear_shared_handshake_key(const fastd_peer_t *peer) {
 	memset(&peer->protocol_state->sigma, 0, sizeof(peer->protocol_state->sigma));
 	memset(&peer->protocol_state->shared_handshake_key, 0, sizeof(peer->protocol_state->shared_handshake_key));
 	memset(&peer->protocol_state->shared_handshake_key_compat, 0, sizeof(peer->protocol_state->shared_handshake_key_compat));
@@ -269,37 +269,37 @@ static void clear_shared_handshake_key(fastd_context_t *ctx UNUSED, const fastd_
 	memset(&peer->protocol_state->peer_handshake_key, 0, sizeof(peer->protocol_state->peer_handshake_key));
 }
 
-static void respond_handshake(fastd_context_t *ctx, const fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr, fastd_peer_t *peer,
+static void respond_handshake(const fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr, fastd_peer_t *peer,
 			      const handshake_key_t *handshake_key, const aligned_int256_t *peer_handshake_key, const fastd_handshake_t *handshake, const fastd_method_info_t *method) {
-	pr_debug(ctx, "responding handshake with %P[%I]...", peer, remote_addr);
+	pr_debug("responding handshake with %P[%I]...", peer, remote_addr);
 
 	if (!update_shared_handshake_key(peer, handshake_key, peer_handshake_key))
 		return;
 
-	fastd_buffer_t buffer = fastd_handshake_new_reply(ctx, handshake, method, true, 4*(4+PUBLICKEYBYTES) + 2*(4+HASHBYTES));
+	fastd_buffer_t buffer = fastd_handshake_new_reply(handshake, method, true, 4*(4+PUBLICKEYBYTES) + 2*(4+HASHBYTES));
 
-	fastd_handshake_add(ctx, &buffer, RECORD_SENDER_KEY, PUBLICKEYBYTES, &conf.protocol_config->key.public);
-	fastd_handshake_add(ctx, &buffer, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES, &peer->protocol_config->public_key);
-	fastd_handshake_add(ctx, &buffer, RECORD_SENDER_HANDSHAKE_KEY, PUBLICKEYBYTES, &handshake_key->key.public);
-	fastd_handshake_add(ctx, &buffer, RECORD_RECEIPIENT_HANDSHAKE_KEY, PUBLICKEYBYTES, peer_handshake_key);
+	fastd_handshake_add(&buffer, RECORD_SENDER_KEY, PUBLICKEYBYTES, &conf.protocol_config->key.public);
+	fastd_handshake_add(&buffer, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES, &peer->protocol_config->public_key);
+	fastd_handshake_add(&buffer, RECORD_SENDER_HANDSHAKE_KEY, PUBLICKEYBYTES, &handshake_key->key.public);
+	fastd_handshake_add(&buffer, RECORD_RECEIPIENT_HANDSHAKE_KEY, PUBLICKEYBYTES, peer_handshake_key);
 
 	fastd_sha256_t hmacbuf;
 
 	if (!conf.secure_handshakes) {
 		fastd_hmacsha256_blocks(&hmacbuf, peer->protocol_state->shared_handshake_key_compat.w, conf.protocol_config->key.public.u32, handshake_key->key.public.u32, NULL);
-		fastd_handshake_add(ctx, &buffer, RECORD_T, HASHBYTES, hmacbuf.b);
+		fastd_handshake_add(&buffer, RECORD_T, HASHBYTES, hmacbuf.b);
 	}
 
-	uint8_t *mac = fastd_handshake_add_zero(ctx, &buffer, RECORD_TLV_MAC, HASHBYTES);
+	uint8_t *mac = fastd_handshake_add_zero(&buffer, RECORD_TLV_MAC, HASHBYTES);
 	fastd_hmacsha256(&hmacbuf, peer->protocol_state->shared_handshake_key.w, fastd_handshake_tlv_data(&buffer), fastd_handshake_tlv_len(&buffer));
 	memcpy(mac, hmacbuf.b, HASHBYTES);
 
-	fastd_send_handshake(ctx, sock, local_addr, remote_addr, peer, buffer);
+	fastd_send_handshake(sock, local_addr, remote_addr, peer, buffer);
 }
 
-static void finish_handshake(fastd_context_t *ctx, fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr, fastd_peer_t *peer, const handshake_key_t *handshake_key, const aligned_int256_t *peer_handshake_key,
+static void finish_handshake(fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr, fastd_peer_t *peer, const handshake_key_t *handshake_key, const aligned_int256_t *peer_handshake_key,
 			     const fastd_handshake_t *handshake, const fastd_method_info_t *method) {
-	pr_debug(ctx, "finishing handshake with %P[%I]...", peer, remote_addr);
+	pr_debug("finishing handshake with %P[%I]...", peer, remote_addr);
 
 	bool compat = !secure_handshake(handshake);
 
@@ -328,40 +328,40 @@ static void finish_handshake(fastd_context_t *ctx, fastd_socket_t *sock, const f
 	}
 
 	if (!valid) {
-		pr_warn(ctx, "received invalid protocol handshake response from %P[%I]", peer, remote_addr);
+		pr_warn("received invalid protocol handshake response from %P[%I]", peer, remote_addr);
 		return;
 	}
 
-	if (!establish(ctx, peer, method, sock, local_addr, remote_addr, true, &handshake_key->key.public, peer_handshake_key, &conf.protocol_config->key.public,
+	if (!establish(peer, method, sock, local_addr, remote_addr, true, &handshake_key->key.public, peer_handshake_key, &conf.protocol_config->key.public,
 		       &peer->protocol_config->public_key, &sigma, compat ? NULL : shared_handshake_key.w, handshake_key->serial))
 		return;
 
-	fastd_buffer_t buffer = fastd_handshake_new_reply(ctx, handshake, method, false, 4*(4+PUBLICKEYBYTES) + 2*(4+HASHBYTES));
+	fastd_buffer_t buffer = fastd_handshake_new_reply(handshake, method, false, 4*(4+PUBLICKEYBYTES) + 2*(4+HASHBYTES));
 
-	fastd_handshake_add(ctx, &buffer, RECORD_SENDER_KEY, PUBLICKEYBYTES, &conf.protocol_config->key.public);
-	fastd_handshake_add(ctx, &buffer, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES, &peer->protocol_config->public_key);
-	fastd_handshake_add(ctx, &buffer, RECORD_SENDER_HANDSHAKE_KEY, PUBLICKEYBYTES, &handshake_key->key.public);
-	fastd_handshake_add(ctx, &buffer, RECORD_RECEIPIENT_HANDSHAKE_KEY, PUBLICKEYBYTES, peer_handshake_key);
+	fastd_handshake_add(&buffer, RECORD_SENDER_KEY, PUBLICKEYBYTES, &conf.protocol_config->key.public);
+	fastd_handshake_add(&buffer, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES, &peer->protocol_config->public_key);
+	fastd_handshake_add(&buffer, RECORD_SENDER_HANDSHAKE_KEY, PUBLICKEYBYTES, &handshake_key->key.public);
+	fastd_handshake_add(&buffer, RECORD_RECEIPIENT_HANDSHAKE_KEY, PUBLICKEYBYTES, peer_handshake_key);
 
 	if (!compat) {
 		fastd_sha256_t hmacbuf;
-		uint8_t *mac = fastd_handshake_add_zero(ctx, &buffer, RECORD_TLV_MAC, HASHBYTES);
+		uint8_t *mac = fastd_handshake_add_zero(&buffer, RECORD_TLV_MAC, HASHBYTES);
 		fastd_hmacsha256(&hmacbuf, shared_handshake_key.w, fastd_handshake_tlv_data(&buffer), fastd_handshake_tlv_len(&buffer));
 		memcpy(mac, hmacbuf.b, HASHBYTES);
 	}
 	else {
 		fastd_sha256_t hmacbuf;
 		fastd_hmacsha256_blocks(&hmacbuf, shared_handshake_key_compat.w, conf.protocol_config->key.public.u32, handshake_key->key.public.u32, NULL);
-		fastd_handshake_add(ctx, &buffer, RECORD_T, HASHBYTES, hmacbuf.b);
+		fastd_handshake_add(&buffer, RECORD_T, HASHBYTES, hmacbuf.b);
 	}
 
-	fastd_send_handshake(ctx, sock, local_addr, remote_addr, peer, buffer);
+	fastd_send_handshake(sock, local_addr, remote_addr, peer, buffer);
 }
 
-static void handle_finish_handshake(fastd_context_t *ctx, fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr,
+static void handle_finish_handshake(fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr,
 				    fastd_peer_t *peer, const handshake_key_t *handshake_key, const aligned_int256_t *peer_handshake_key,
 				    const fastd_handshake_t *handshake, const fastd_method_info_t *method) {
-	pr_debug(ctx, "handling handshake finish with %P[%I]...", peer, remote_addr);
+	pr_debug("handling handshake finish with %P[%I]...", peer, remote_addr);
 
 	bool compat = !secure_handshake(handshake);
 
@@ -381,27 +381,27 @@ static void handle_finish_handshake(fastd_context_t *ctx, fastd_socket_t *sock,
 	}
 
 	if (!valid) {
-		pr_warn(ctx, "received invalid protocol handshake finish from %P[%I]", peer, remote_addr);
+		pr_warn("received invalid protocol handshake finish from %P[%I]", peer, remote_addr);
 		return;
 	}
 
-	establish(ctx, peer, method, sock, local_addr, remote_addr, false, peer_handshake_key, &handshake_key->key.public, &peer->protocol_config->public_key,
+	establish(peer, method, sock, local_addr, remote_addr, false, peer_handshake_key, &handshake_key->key.public, &peer->protocol_config->public_key,
 		  &conf.protocol_config->key.public, &peer->protocol_state->sigma, compat ? NULL : peer->protocol_state->shared_handshake_key.w, handshake_key->serial);
 
-	clear_shared_handshake_key(ctx, peer);
+	clear_shared_handshake_key(peer);
 }
 
-static fastd_peer_t* find_sender_key(fastd_context_t *ctx, const fastd_peer_address_t *address, const unsigned char key[32]) {
+static fastd_peer_t* find_sender_key(const fastd_peer_address_t *address, const unsigned char key[32]) {
 	errno = 0;
 
 	fastd_peer_t *ret = NULL;
 	size_t i;
 
-	for (i = 0; i < VECTOR_LEN(ctx->peers); i++) {
-		fastd_peer_t *peer = VECTOR_INDEX(ctx->peers, i);
+	for (i = 0; i < VECTOR_LEN(ctx.peers); i++) {
+		fastd_peer_t *peer = VECTOR_INDEX(ctx.peers, i);
 
 		if (memcmp(&peer->protocol_config->public_key, key, PUBLICKEYBYTES) == 0) {
-			if (!fastd_peer_matches_address(ctx, peer, address)) {
+			if (!fastd_peer_matches_address(peer, address)) {
 				errno = EPERM;
 				return NULL;
 			}
@@ -410,7 +410,7 @@ static fastd_peer_t* find_sender_key(fastd_context_t *ctx, const fastd_peer_addr
 			continue;
 		}
 
-		if (fastd_peer_owns_address(ctx, peer, address)) {
+		if (fastd_peer_owns_address(peer, address)) {
 			errno = EPERM;
 			return NULL;
 		}
@@ -422,23 +422,23 @@ static fastd_peer_t* find_sender_key(fastd_context_t *ctx, const fastd_peer_addr
 	return ret;
 }
 
-static fastd_peer_t* match_sender_key(fastd_context_t *ctx, const fastd_socket_t *sock, const fastd_peer_address_t *address, fastd_peer_t *peer, const unsigned char key[32]) {
+static fastd_peer_t* match_sender_key(const fastd_socket_t *sock, const fastd_peer_address_t *address, fastd_peer_t *peer, const unsigned char key[32]) {
 	errno = 0;
 
 	if (sock->peer && peer != sock->peer)
-		exit_bug(ctx, "packet without correct peer set on dynamic socket");
+		exit_bug("packet without correct peer set on dynamic socket");
 
 	if (peer) {
 		if (memcmp(&peer->protocol_config->public_key, key, PUBLICKEYBYTES) == 0)
 			return peer;
 
-		if (fastd_peer_owns_address(ctx, peer, address)) {
+		if (fastd_peer_owns_address(peer, address)) {
 			errno = EPERM;
 			return NULL;
 		}
 	}
 
-	return find_sender_key(ctx, address, key);
+	return find_sender_key(address, key);
 }
 
 static size_t key_count(const unsigned char key[32]) {
@@ -456,7 +456,7 @@ static size_t key_count(const unsigned char key[32]) {
 	return ret;
 }
 
-bool fastd_protocol_ec25519_fhmqvc_peer_check(fastd_context_t *ctx, fastd_peer_config_t *peer_conf) {
+bool fastd_protocol_ec25519_fhmqvc_peer_check(fastd_peer_config_t *peer_conf) {
 	if (!peer_conf->protocol_config)
 		return false;
 
@@ -466,18 +466,18 @@ bool fastd_protocol_ec25519_fhmqvc_peer_check(fastd_context_t *ctx, fastd_peer_c
 	if (key_count(peer_conf->protocol_config->public_key.u8) > 1) {
 		char buf[65];
 		hexdump(buf, peer_conf->protocol_config->public_key.u8);
-		pr_warn(ctx, "more than one peer is configured with key %s, disabling %s", buf, peer_conf->name);
+		pr_warn("more than one peer is configured with key %s, disabling %s", buf, peer_conf->name);
 		return false;
 	}
 
 	return true;
 }
 
-bool fastd_protocol_ec25519_fhmqvc_peer_check_temporary(fastd_context_t *ctx, fastd_peer_t *peer) {
+bool fastd_protocol_ec25519_fhmqvc_peer_check_temporary(fastd_peer_t *peer) {
 	if (key_count(peer->protocol_config->public_key.u8)) {
 		char buf[65];
 		hexdump(buf, peer->protocol_config->public_key.u8);
-		pr_info(ctx, "key %s is configured now, deleting temporary peer.", buf);
+		pr_info("key %s is configured now, deleting temporary peer.", buf);
 		return false;
 	}
 
@@ -488,18 +488,18 @@ static inline bool allow_unknown(void) {
 	return fastd_shell_command_isset(&conf.on_verify);
 }
 
-static inline fastd_peer_t* add_temporary(fastd_context_t *ctx, const fastd_peer_address_t *addr, const unsigned char key[32]) {
+static inline fastd_peer_t* add_temporary(const fastd_peer_address_t *addr, const unsigned char key[32]) {
 	if (!allow_unknown()) {
-		pr_debug(ctx, "ignoring handshake from %I (unknown key)", addr);
+		pr_debug("ignoring handshake from %I (unknown key)", addr);
 		return NULL;
 	}
 
 	if (key_count(key)) {
-		pr_debug(ctx, "ignoring handshake from %I (disabled key)", addr);
+		pr_debug("ignoring handshake from %I (disabled key)", addr);
 		return NULL;
 	}
 
-	fastd_peer_t *peer = fastd_peer_add_temporary(ctx);
+	fastd_peer_t *peer = fastd_peer_add_temporary();
 
 	peer->protocol_config = malloc(sizeof(fastd_protocol_peer_config_t));
 	memcpy(&peer->protocol_config->public_key, key, PUBLICKEYBYTES);
@@ -511,79 +511,79 @@ static inline fastd_peer_t* add_temporary(fastd_context_t *ctx, const fastd_peer
 }
 
 
-void fastd_protocol_ec25519_fhmqvc_handshake_init(fastd_context_t *ctx, const fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr, fastd_peer_t *peer) {
-	fastd_protocol_ec25519_fhmqvc_maintenance(ctx);
+void fastd_protocol_ec25519_fhmqvc_handshake_init(const fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr, fastd_peer_t *peer) {
+	fastd_protocol_ec25519_fhmqvc_maintenance();
 
-	fastd_buffer_t buffer = fastd_handshake_new_init(ctx, 3*(4+PUBLICKEYBYTES) /* sender key, receipient key, handshake key */);
+	fastd_buffer_t buffer = fastd_handshake_new_init(3*(4+PUBLICKEYBYTES) /* sender key, receipient key, handshake key */);
 
-	fastd_handshake_add(ctx, &buffer, RECORD_SENDER_KEY, PUBLICKEYBYTES, &conf.protocol_config->key.public);
+	fastd_handshake_add(&buffer, RECORD_SENDER_KEY, PUBLICKEYBYTES, &conf.protocol_config->key.public);
 
 	if (peer)
-		fastd_handshake_add(ctx, &buffer, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES, &peer->protocol_config->public_key);
+		fastd_handshake_add(&buffer, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES, &peer->protocol_config->public_key);
 	else
-		pr_debug(ctx, "sending handshake to unknown peer %I", remote_addr);
+		pr_debug("sending handshake to unknown peer %I", remote_addr);
 
-	fastd_handshake_add(ctx, &buffer, RECORD_SENDER_HANDSHAKE_KEY, PUBLICKEYBYTES, &ctx->protocol_state->handshake_key.key.public);
+	fastd_handshake_add(&buffer, RECORD_SENDER_HANDSHAKE_KEY, PUBLICKEYBYTES, &ctx.protocol_state->handshake_key.key.public);
 
 	if (!peer || !fastd_peer_is_established(peer))
-		fastd_shell_command_exec(ctx, &conf.on_connect, peer, (local_addr && local_addr->sa.sa_family) ? local_addr : sock->bound_addr, remote_addr);
+		fastd_shell_command_exec(&conf.on_connect, peer, (local_addr && local_addr->sa.sa_family) ? local_addr : sock->bound_addr, remote_addr);
 
-	fastd_send_handshake(ctx, sock, local_addr, remote_addr, peer, buffer);
+	fastd_send_handshake(sock, local_addr, remote_addr, peer, buffer);
 }
 
-void fastd_protocol_ec25519_fhmqvc_handshake_handle(fastd_context_t *ctx, fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr,
+void fastd_protocol_ec25519_fhmqvc_handshake_handle(fastd_socket_t *sock, const fastd_peer_address_t *local_addr, const fastd_peer_address_t *remote_addr,
 						    fastd_peer_t *peer, const fastd_handshake_t *handshake, const fastd_method_info_t *method) {
-	fastd_protocol_ec25519_fhmqvc_maintenance(ctx);
+	fastd_protocol_ec25519_fhmqvc_maintenance();
 
 	if (!has_field(handshake, RECORD_SENDER_KEY, PUBLICKEYBYTES)) {
-		pr_debug(ctx, "received handshake without sender key from %I", remote_addr);
+		pr_debug("received handshake without sender key from %I", remote_addr);
 		return;
 	}
 
-	peer = match_sender_key(ctx, sock, remote_addr, peer, handshake->records[RECORD_SENDER_KEY].data);
+	peer = match_sender_key(sock, remote_addr, peer, handshake->records[RECORD_SENDER_KEY].data);
 	if (!peer) {
 		switch (errno) {
 		case EPERM:
-			pr_debug(ctx, "ignoring handshake from %I (incorrect source address)", remote_addr);
+			pr_debug("ignoring handshake from %I (incorrect source address)", remote_addr);
 			return;
 
 		case ENOENT:
-			peer = add_temporary(ctx, remote_addr, handshake->records[RECORD_SENDER_KEY].data);
+			peer = add_temporary(remote_addr, handshake->records[RECORD_SENDER_KEY].data);
 			if (peer)
 				break;
 
 			return;
 
 		default:
-			exit_bug(ctx, "match_sender_key: unknown error");
+			exit_bug("match_sender_key: unknown error");
 		}
 	}
 
-	if (fastd_peer_is_temporary(peer) && !fastd_peer_verify_temporary(ctx, peer, local_addr, remote_addr)) {
-		pr_debug(ctx, "ignoring handshake from %P[%I] (verification failed)", peer, remote_addr);
-		fastd_peer_delete(ctx, peer);
+	if (fastd_peer_is_temporary(peer) && !fastd_peer_verify_temporary(peer, local_addr, remote_addr)) {
+		pr_debug("ignoring handshake from %P[%I] (verification failed)", peer, remote_addr);
+		fastd_peer_delete(peer);
 		return;
 	}
 
-	if (!fastd_peer_may_connect(ctx, peer)) {
-		pr_debug(ctx, "ignoring handshake from %P[%I] because of local constraints", peer, remote_addr);
+	if (!fastd_peer_may_connect(peer)) {
+		pr_debug("ignoring handshake from %P[%I] because of local constraints", peer, remote_addr);
 		return;
 	}
 
-	if (!fastd_timed_out(ctx, &peer->establish_handshake_timeout)) {
-		pr_debug(ctx, "received repeated handshakes from %P[%I], ignoring", peer, remote_addr);
+	if (!fastd_timed_out(&peer->establish_handshake_timeout)) {
+		pr_debug("received repeated handshakes from %P[%I], ignoring", peer, remote_addr);
 		return;
 	}
 
 	if (has_field(handshake, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES)) {
 		if (memcmp(&conf.protocol_config->key.public, handshake->records[RECORD_RECEIPIENT_KEY].data, PUBLICKEYBYTES) != 0) {
-			pr_debug(ctx, "received protocol handshake with wrong receipient key from %P[%I]", peer, remote_addr);
+			pr_debug("received protocol handshake with wrong receipient key from %P[%I]", peer, remote_addr);
 			return;
 		}
 	}
 
 	if (!has_field(handshake, RECORD_SENDER_HANDSHAKE_KEY, PUBLICKEYBYTES)) {
-		pr_debug(ctx, "received handshake without sender handshake key from %P[%I]", peer, remote_addr);
+		pr_debug("received handshake without sender handshake key from %P[%I]", peer, remote_addr);
 		return;
 	}
 
@@ -591,65 +591,65 @@ void fastd_protocol_ec25519_fhmqvc_handshake_handle(fastd_context_t *ctx, fastd_
 	memcpy(&peer_handshake_key, handshake->records[RECORD_SENDER_HANDSHAKE_KEY].data, PUBLICKEYBYTES);
 
 	if (handshake->type == 1) {
-		if (!fastd_timed_out(ctx, &peer->last_handshake_response_timeout)
+		if (!fastd_timed_out(&peer->last_handshake_response_timeout)
 		    && fastd_peer_address_equal(remote_addr, &peer->last_handshake_response_address)) {
-			pr_debug(ctx, "not responding to repeated handshake from %P[%I]", peer, remote_addr);
+			pr_debug("not responding to repeated handshake from %P[%I]", peer, remote_addr);
 			return;
 		}
 
-		pr_verbose(ctx, "received handshake from %P[%I]%s%s", peer, remote_addr, handshake->peer_version ? " using fastd " : "", handshake->peer_version ?: "");
+		pr_verbose("received handshake from %P[%I]%s%s", peer, remote_addr, handshake->peer_version ? " using fastd " : "", handshake->peer_version ?: "");
 
-		peer->last_handshake_response_timeout = fastd_in_seconds(ctx, conf.min_handshake_interval);
+		peer->last_handshake_response_timeout = fastd_in_seconds(conf.min_handshake_interval);
 		peer->last_handshake_response_address = *remote_addr;
-		respond_handshake(ctx, sock, local_addr, remote_addr, peer, &ctx->protocol_state->handshake_key, &peer_handshake_key, handshake, method);
+		respond_handshake(sock, local_addr, remote_addr, peer, &ctx.protocol_state->handshake_key, &peer_handshake_key, handshake, method);
 		return;
 	}
 
 	if (!has_field(handshake, RECORD_RECEIPIENT_KEY, PUBLICKEYBYTES)) {
-		pr_debug(ctx, "received handshake reply without receipient key from %P[%I]", peer, remote_addr);
+		pr_debug("received handshake reply without receipient key from %P[%I]", peer, remote_addr);
 		return;
 	}
 
 	if (!has_field(handshake, RECORD_RECEIPIENT_HANDSHAKE_KEY, PUBLICKEYBYTES)) {
-		pr_debug(ctx, "received handshake reply without receipient handshake key from %P[%I]", peer, remote_addr);
+		pr_debug("received handshake reply without receipient handshake key from %P[%I]", peer, remote_addr);
 		return;
 	}
 
 	if (!secure_handshake(handshake)) {
 		if (conf.secure_handshakes || !has_field(handshake, RECORD_T, HASHBYTES)) {
-			pr_debug(ctx, "received handshake reply without HMAC from %P[%I]", peer, remote_addr);
+			pr_debug("received handshake reply without HMAC from %P[%I]", peer, remote_addr);
 			return;
 		}
 	}
 
 	handshake_key_t *handshake_key;
-	if (is_handshake_key_valid(ctx, &ctx->protocol_state->handshake_key) &&
-	    memcmp(&ctx->protocol_state->handshake_key.key.public, handshake->records[RECORD_RECEIPIENT_HANDSHAKE_KEY].data, PUBLICKEYBYTES) == 0) {
-		handshake_key = &ctx->protocol_state->handshake_key;
+	if (is_handshake_key_valid(&ctx.protocol_state->handshake_key) &&
+	    memcmp(&ctx.protocol_state->handshake_key.key.public, handshake->records[RECORD_RECEIPIENT_HANDSHAKE_KEY].data, PUBLICKEYBYTES) == 0) {
+		handshake_key = &ctx.protocol_state->handshake_key;
 	}
-	else if (is_handshake_key_valid(ctx, &ctx->protocol_state->prev_handshake_key) &&
-		 memcmp(&ctx->protocol_state->prev_handshake_key.key.public, handshake->records[RECORD_RECEIPIENT_HANDSHAKE_KEY].data, PUBLICKEYBYTES) == 0) {
-		handshake_key = &ctx->protocol_state->prev_handshake_key;
+	else if (is_handshake_key_valid(&ctx.protocol_state->prev_handshake_key) &&
+		 memcmp(&ctx.protocol_state->prev_handshake_key.key.public, handshake->records[RECORD_RECEIPIENT_HANDSHAKE_KEY].data, PUBLICKEYBYTES) == 0) {
+		handshake_key = &ctx.protocol_state->prev_handshake_key;
 	}
 	else {
-		pr_debug(ctx, "received handshake reply with unexpected receipient handshake key from %P[%I]", peer, remote_addr);
+		pr_debug("received handshake reply with unexpected receipient handshake key from %P[%I]", peer, remote_addr);
 		return;
 	}
 
 	switch (handshake->type) {
 	case 2:
-		pr_verbose(ctx, "received handshake response from %P[%I]%s%s", peer, remote_addr, handshake->peer_version ? " using fastd " : "", handshake->peer_version ?: "");
+		pr_verbose("received handshake response from %P[%I]%s%s", peer, remote_addr, handshake->peer_version ? " using fastd " : "", handshake->peer_version ?: "");
 
-		finish_handshake(ctx, sock, local_addr, remote_addr, peer, handshake_key, &peer_handshake_key, handshake, method);
+		finish_handshake(sock, local_addr, remote_addr, peer, handshake_key, &peer_handshake_key, handshake, method);
 		break;
 
 	case 3:
-		pr_debug(ctx, "received handshake finish from %P[%I]%s%s", peer, remote_addr, handshake->peer_version ? " using fastd " : "", handshake->peer_version ?: "");
+		pr_debug("received handshake finish from %P[%I]%s%s", peer, remote_addr, handshake->peer_version ? " using fastd " : "", handshake->peer_version ?: "");
 
-		handle_finish_handshake(ctx, sock, local_addr, remote_addr, peer, handshake_key, &peer_handshake_key, handshake, method);
+		handle_finish_handshake(sock, local_addr, remote_addr, peer, handshake_key, &peer_handshake_key, handshake, method);
 		break;
 
 	default:
-		pr_debug(ctx, "received handshake reply with unknown type %u from %P[%I]", handshake->type, peer, remote_addr);
+		pr_debug("received handshake reply with unknown type %u from %P[%I]", handshake->type, peer, remote_addr);
 	}
 }