X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fprotocol_key.c;h=e838f6135578ea8d8dcd3db2dcd6fe14e89e1bc9;hb=b0d80c7f28528c2c8857c5662b4aca779b3184bb;hp=a3cf3f51b5965b90923b525494593a971f611e08;hpb=e3a4672afb8eb341b380e74b2bf6d098f61c08a3;p=tinc

diff --git a/src/protocol_key.c b/src/protocol_key.c
index a3cf3f51..e838f613 100644
--- a/src/protocol_key.c
+++ b/src/protocol_key.c
@@ -98,7 +98,7 @@ static bool send_initial_sptps_data(void *handle, uint8_t type, const char *data
 bool send_req_key(node_t *to) {
 	if(to->status.sptps) {
 		if(!node_read_ecdsa_public_key(to)) {
-			logger(DEBUG_PROTOCOL, LOG_DEBUG, "No ECDSA key known for %s (%s)", to->name, to->hostname);
+			logger(DEBUG_PROTOCOL, LOG_DEBUG, "No Ed25519 key known for %s (%s)", to->name, to->hostname);
 			send_request(to->nexthop->connection, "%d %s %s %d", REQ_KEY, myself->name, to->name, REQ_PUBKEY);
 			return true;
 		}
@@ -142,14 +142,14 @@ static bool req_key_ext_h(connection_t *c, const char *request, node_t *from, in
 				return true;
 			}
 
-			logger(DEBUG_PROTOCOL, LOG_INFO, "Learned ECDSA public key from %s (%s)", from->name, from->hostname);
-			append_config_file(from->name, "ECDSAPublicKey", pubkey);
+			logger(DEBUG_PROTOCOL, LOG_INFO, "Learned Ed25519 public key from %s (%s)", from->name, from->hostname);
+			append_config_file(from->name, "Ed25519PublicKey", pubkey);
 			return true;
 		}
 
 		case REQ_KEY: {
 			if(!node_read_ecdsa_public_key(from)) {
-				logger(DEBUG_PROTOCOL, LOG_DEBUG, "No ECDSA key known for %s (%s)", from->name, from->hostname);
+				logger(DEBUG_PROTOCOL, LOG_DEBUG, "No Ed25519 key known for %s (%s)", from->name, from->hostname);
 				send_request(from->nexthop->connection, "%d %s %s %d", REQ_KEY, myself->name, from->name, REQ_PUBKEY);
 				return true;
 			}
@@ -260,24 +260,31 @@ bool send_ans_key(node_t *to) {
 	if(to->status.sptps)
 		abort();
 
-	size_t keylen = cipher_keylength(myself->incipher);
+	size_t keylen = myself->incipher ? cipher_keylength(myself->incipher) : 1;
 	char key[keylen * 2 + 1];
 
+	randomize(key, keylen);
+
 	cipher_close(to->incipher);
 	digest_close(to->indigest);
 
-	to->incipher = cipher_open_by_nid(cipher_get_nid(myself->incipher));
-	to->indigest = digest_open_by_nid(digest_get_nid(myself->indigest), digest_length(myself->indigest));
-	to->incompression = myself->incompression;
+	if(myself->incipher) {
+		to->incipher = cipher_open_by_nid(cipher_get_nid(myself->incipher));
+		if(!to->incipher)
+			abort();
+		if(!cipher_set_key(to->incipher, key, false))
+			abort();
+	}
 
-	if(!to->incipher || !to->indigest)
-		abort();
+	if(myself->indigest) {
+		to->indigest = digest_open_by_nid(digest_get_nid(myself->indigest), digest_length(myself->indigest));
+		if(!to->indigest)
+			abort();
+		if(!digest_set_key(to->indigest, key, keylen))
+			abort();
+	}
 
-	randomize(key, keylen);
-	if(!cipher_set_key(to->incipher, key, false))
-		abort();
-	if(!digest_set_key(to->indigest, key, keylen))
-		abort();
+	to->incompression = myself->incompression;
 
 	bin2hex(key, key, keylen);
 
@@ -395,14 +402,22 @@ bool ans_key_h(connection_t *c, const char *request) {
 
 	/* Check and lookup cipher and digest algorithms */
 
-	if(!(from->outcipher = cipher_open_by_nid(cipher))) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown cipher!", from->name, from->hostname);
-		return false;
+	if(cipher) {
+		if(!(from->outcipher = cipher_open_by_nid(cipher))) {
+			logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown cipher!", from->name, from->hostname);
+			return false;
+		}
+	} else {
+		from->outcipher = NULL;
 	}
 
-	if(!(from->outdigest = digest_open_by_nid(digest, maclength))) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown digest!", from->name, from->hostname);
-		return false;
+	if(digest) {
+		if(!(from->outdigest = digest_open_by_nid(digest, maclength))) {
+			logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses unknown digest!", from->name, from->hostname);
+			return false;
+		}
+	} else {
+		from->outdigest = NULL;
 	}
 
 	if(maclength != digest_length(from->outdigest)) {
@@ -414,16 +429,16 @@ bool ans_key_h(connection_t *c, const char *request) {
 
 	keylen = hex2bin(key, key, sizeof key);
 
-	if(keylen != cipher_keylength(from->outcipher)) {
+	if(keylen != (from->outcipher ? cipher_keylength(from->outcipher) : 1)) {
 		logger(DEBUG_ALWAYS, LOG_ERR, "Node %s (%s) uses wrong keylength!", from->name, from->hostname);
 		return true;
 	}
 
 	/* Update our copy of the origin's packet key */
 
-	if(!cipher_set_key(from->outcipher, key, true))
+	if(from->outcipher && !cipher_set_key(from->outcipher, key, true))
 		return false;
-	if(!digest_set_key(from->outdigest, key, keylen))
+	if(from->outdigest && !digest_set_key(from->outdigest, key, keylen))
 		return false;
 
 	from->status.validkey = true;