X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;ds=sidebyside;f=src%2Fprotocol_auth.c;h=d72257b75845f600a007fa5c85a99942740d19d7;hb=87b60ec7e32d14ce0ebe20bb19a342d9e0aac70a;hp=bd1c1c47fe18691d6eb4c46e53975f01c5986035;hpb=eb049936ffce049cf6b53de8ca0f39c98a360363;p=meshlink

diff --git a/src/protocol_auth.c b/src/protocol_auth.c
index bd1c1c47..d72257b7 100644
--- a/src/protocol_auth.c
+++ b/src/protocol_auth.c
@@ -21,9 +21,6 @@
 
 #include "conf.h"
 #include "connection.h"
-#include "cipher.h"
-#include "crypto.h"
-#include "digest.h"
 #include "ecdsa.h"
 #include "edge.h"
 #include "graph.h"
@@ -40,21 +37,21 @@
 #include "xalloc.h"
 #include "ed25519/sha512.h"
 
-static bool send_proxyrequest(connection_t *c) {
+static bool send_proxyrequest(meshlink_handle_t *mesh, connection_t *c) {
 	switch(mesh->proxytype) {
 		case PROXY_HTTP: {
 			char *host;
 			char *port;
 
 			sockaddr2str(&c->address, &host, &port);
-			send_request(c, "CONNECT %s:%s HTTP/1.1\r\n\r", host, port);
+			send_request(mesh, c, "CONNECT %s:%s HTTP/1.1\r\n\r", host, port);
 			free(host);
 			free(port);
 			return true;
 		}
 		case PROXY_SOCKS4: {
 			if(c->address.sa.sa_family != AF_INET) {
-				logger(DEBUG_ALWAYS, LOG_ERR, "Cannot connect to an IPv6 host through a SOCKS 4 proxy!");
+				logger(mesh, MESHLINK_ERROR, "Cannot connect to an IPv6 host through a SOCKS 4 proxy!");
 				return false;
 			}
 			char s4req[9 + (mesh->proxyuser ? strlen(mesh->proxyuser) : 0)];
@@ -66,7 +63,7 @@ static bool send_proxyrequest(connection_t *c) {
 				memcpy(s4req + 8, mesh->proxyuser, strlen(mesh->proxyuser));
 			s4req[sizeof s4req - 1] = 0;
 			c->tcplen = 8;
-			return send_meta(c, s4req, sizeof s4req);
+			return send_meta(mesh, c, s4req, sizeof s4req);
 		}
 		case PROXY_SOCKS5: {
 			int len = 3 + 6 + (c->address.sa.sa_family == AF_INET ? 4 : 16);
@@ -108,39 +105,38 @@ static bool send_proxyrequest(connection_t *c) {
 				i += 2;
 				c->tcplen += 22;
 			} else {
-				logger(DEBUG_ALWAYS, LOG_ERR, "Address family %hx not supported for SOCKS 5 proxies!", c->address.sa.sa_family);
+				logger(mesh, MESHLINK_ERROR, "Address family %hx not supported for SOCKS 5 proxies!", c->address.sa.sa_family);
 				return false;
 			}
 			if(i > len)
 				abort();
-			return send_meta(c, s5req, sizeof s5req);
+			return send_meta(mesh, c, s5req, sizeof s5req);
 		}
 		case PROXY_SOCKS4A:
-			logger(DEBUG_ALWAYS, LOG_ERR, "Proxy type not implemented yet");
+			logger(mesh, MESHLINK_ERROR, "Proxy type not implemented yet");
 			return false;
 		case PROXY_EXEC:
 			return true;
 		default:
-			logger(DEBUG_ALWAYS, LOG_ERR, "Unknown proxy type");
+			logger(mesh, MESHLINK_ERROR, "Unknown proxy type");
 			return false;
 	}
 }
 
-bool send_id(connection_t *c) {
-	gettimeofday(&c->start, NULL);
-
+bool send_id(meshlink_handle_t *mesh, connection_t *c) {
+	
 	int minor = mesh->self->connection->protocol_minor;
 
 	if(mesh->proxytype && c->outgoing)
-		if(!send_proxyrequest(c))
+		if(!send_proxyrequest(mesh, c))
 			return false;
 
-	return send_request(c, "%d %s %d.%d", ID, mesh->self->connection->name, mesh->self->connection->protocol_major, minor);
+	return send_request(mesh, c, "%d %s %d.%d", ID, mesh->self->connection->name, mesh->self->connection->protocol_major, minor);
 }
 
-static bool finalize_invitation(connection_t *c, const char *data, uint16_t len) {
+static bool finalize_invitation(meshlink_handle_t *mesh, connection_t *c, const void *data, uint16_t len) {
 	if(strchr(data, '\n')) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Received invalid key from invited node %s (%s)!\n", c->name, c->hostname);
+		logger(mesh, MESHLINK_ERROR, "Received invalid key from invited node %s (%s)!\n", c->name, c->hostname);
 		return false;
 	}
 
@@ -148,35 +144,39 @@ static bool finalize_invitation(connection_t *c, const char *data, uint16_t len)
 	char filename[PATH_MAX];
 	snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, c->name);
 	if(!access(filename, F_OK)) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Host config file for %s (%s) already exists!\n", c->name, c->hostname);
+		logger(mesh, MESHLINK_ERROR, "Host config file for %s (%s) already exists!\n", c->name, c->hostname);
 		return false;
 	}
 
 	FILE *f = fopen(filename, "w");
 	if(!f) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Error trying to create %s: %s\n", filename, strerror(errno));
+		logger(mesh, MESHLINK_ERROR, "Error trying to create %s: %s\n", filename, strerror(errno));
 		return false;
 	}
 
-	fprintf(f, "ECDSAPublicKey = %s\n", data);
+	fprintf(f, "ECDSAPublicKey = %s\n", (const char *)data);
 	fclose(f);
 
-	logger(DEBUG_CONNECTIONS, LOG_INFO, "Key succesfully received from %s (%s)", c->name, c->hostname);
+	logger(mesh, MESHLINK_INFO, "Key succesfully received from %s (%s)", c->name, c->hostname);
 
 	//TODO: callback to application to inform of an accepted invitation
 
 	sptps_send_record(&c->sptps, 2, data, 0);
+
+	load_all_nodes(mesh);
+
 	return true;
 }
 
-static bool receive_invitation_sptps(void *handle, uint8_t type, const char *data, uint16_t len) {
+static bool receive_invitation_sptps(void *handle, uint8_t type, const void *data, uint16_t len) {
 	connection_t *c = handle;
+	meshlink_handle_t *mesh = c->mesh;
 
 	if(type == 128)
 		return true;
 
 	if(type == 1 && c->status.invitation_used)
-		return finalize_invitation(c, data, len);
+		return finalize_invitation(mesh, c, data, len);
 
 	if(type != 0 || len != 18 || c->status.invitation_used)
 		return false;
@@ -199,16 +199,16 @@ static bool receive_invitation_sptps(void *handle, uint8_t type, const char *dat
 	// Atomically rename the invitation file
 	if(rename(filename, usedname)) {
 		if(errno == ENOENT)
-			logger(DEBUG_ALWAYS, LOG_ERR, "Peer %s tried to use non-existing invitation %s\n", c->hostname, cookie);
+			logger(mesh, MESHLINK_ERROR, "Peer %s tried to use non-existing invitation %s\n", c->hostname, cookie);
 		else
-			logger(DEBUG_ALWAYS, LOG_ERR, "Error trying to rename invitation %s\n", cookie);
+			logger(mesh, MESHLINK_ERROR, "Error trying to rename invitation %s\n", cookie);
 		return false;
 	}
 
 	// Open the renamed file
 	FILE *f = fopen(usedname, "r");
 	if(!f) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Error trying to open invitation %s\n", cookie);
+		logger(mesh, MESHLINK_ERROR, "Error trying to open invitation %s\n", cookie);
 		return false;
 	}
 
@@ -228,7 +228,7 @@ static bool receive_invitation_sptps(void *handle, uint8_t type, const char *dat
 	buf[len] = 0;
 
 	if(!*buf || !*name || strcasecmp(buf, "Name") || !check_id(name)) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Invalid invitation file %s\n", cookie);
+		logger(mesh, MESHLINK_ERROR, "Invalid invitation file %s\n", cookie);
 		fclose(f);
 		return false;
 	}
@@ -247,15 +247,15 @@ static bool receive_invitation_sptps(void *handle, uint8_t type, const char *dat
 
 	c->status.invitation_used = true;
 
-	logger(DEBUG_CONNECTIONS, LOG_INFO, "Invitation %s succesfully sent to %s (%s)", cookie, c->name, c->hostname);
+	logger(mesh, MESHLINK_INFO, "Invitation %s succesfully sent to %s (%s)", cookie, c->name, c->hostname);
 	return true;
 }
 
-bool id_h(connection_t *c, const char *request) {
+bool id_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
 	char name[MAX_STRING_SIZE];
 
 	if(sscanf(request, "%*d " MAX_STRING " %d.%d", name, &c->protocol_major, &c->protocol_minor) < 2) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Got bad %s from %s (%s)", "ID", c->name,
+		logger(mesh, MESHLINK_ERROR, "Got bad %s from %s (%s)", "ID", c->name,
 			   c->hostname);
 		return false;
 	}
@@ -264,13 +264,13 @@ bool id_h(connection_t *c, const char *request) {
 
 	if(name[0] == '?') {
 		if(!mesh->invitation_key) {
-			logger(DEBUG_ALWAYS, LOG_ERR, "Got invitation from %s but we don't have an invitation key", c->hostname);
+			logger(mesh, MESHLINK_ERROR, "Got invitation from %s but we don't have an invitation key", c->hostname);
 			return false;
 		}
 
 		c->ecdsa = ecdsa_set_base64_public_key(name + 1);
 		if(!c->ecdsa) {
-			logger(DEBUG_ALWAYS, LOG_ERR, "Got bad invitation from %s", c->hostname);
+			logger(mesh, MESHLINK_ERROR, "Got bad invitation from %s", c->hostname);
 			return false;
 		}
 
@@ -278,19 +278,20 @@ bool id_h(connection_t *c, const char *request) {
 		char *mykey = ecdsa_get_base64_public_key(mesh->invitation_key);
 		if(!mykey)
 			return false;
-		if(!send_request(c, "%d %s", ACK, mykey))
+		if(!send_request(mesh, c, "%d %s", ACK, mykey))
 			return false;
 		free(mykey);
 
 		c->protocol_minor = 2;
+		c->allow_request = 1;
 
-		return sptps_start(&c->sptps, c, false, false, mesh->invitation_key, c->ecdsa, "tinc invitation", 15, send_meta_sptps, receive_invitation_sptps);
+		return sptps_start(&c->sptps, c, false, false, mesh->invitation_key, c->ecdsa, "meshlink invitation", 15, send_meta_sptps, receive_invitation_sptps);
 	}
 
 	/* Check if identity is a valid name */
 
 	if(!check_id(name)) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Got bad %s from %s (%s): %s", "ID", c->name,
+		logger(mesh, MESHLINK_ERROR, "Got bad %s from %s (%s): %s", "ID", c->name,
 			   c->hostname, "invalid name");
 		return false;
 	}
@@ -299,7 +300,7 @@ bool id_h(connection_t *c, const char *request) {
 
 	if(c->outgoing) {
 		if(strcmp(c->name, name)) {
-			logger(DEBUG_ALWAYS, LOG_ERR, "Peer %s is %s instead of %s", c->hostname, name,
+			logger(mesh, MESHLINK_ERROR, "Peer %s is %s instead of %s", c->hostname, name,
 				   c->name);
 			return false;
 		}
@@ -312,27 +313,20 @@ bool id_h(connection_t *c, const char *request) {
 	/* Check if version matches */
 
 	if(c->protocol_major != mesh->self->connection->protocol_major) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Peer %s (%s) uses incompatible version %d.%d",
+		logger(mesh, MESHLINK_ERROR, "Peer %s (%s) uses incompatible version %d.%d",
 			c->name, c->hostname, c->protocol_major, c->protocol_minor);
 		return false;
 	}
 
-	if(bypass_security) {
-		if(!c->config_tree)
-			init_configuration(&c->config_tree);
-		c->allow_request = ACK;
-		return send_ack(c);
-	}
-
 	if(!c->config_tree) {
 		init_configuration(&c->config_tree);
 
-		if(!read_host_config(c->config_tree, c->name)) {
-			logger(DEBUG_ALWAYS, LOG_ERR, "Peer %s had unknown identity (%s)", c->hostname, c->name);
+		if(!read_host_config(mesh, c->config_tree, c->name)) {
+			logger(mesh, MESHLINK_ERROR, "Peer %s had unknown identity (%s)", c->hostname, c->name);
 			return false;
 		}
 
-		read_ecdsa_public_key(c);
+		read_ecdsa_public_key(mesh, c);
 	} else {
 		if(c->protocol_minor && !ecdsa_active(c->ecdsa))
 			c->protocol_minor = 1;
@@ -341,7 +335,7 @@ bool id_h(connection_t *c, const char *request) {
 	/* Forbid version rollback for nodes whose ECDSA key we know */
 
 	if(ecdsa_active(c->ecdsa) && c->protocol_minor < 2) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Peer %s (%s) tries to roll back protocol version to %d.%d",
+		logger(mesh, MESHLINK_ERROR, "Peer %s (%s) tries to roll back protocol version to %d.%d",
 			c->name, c->hostname, c->protocol_major, c->protocol_minor);
 		return false;
 	}
@@ -350,84 +344,76 @@ bool id_h(connection_t *c, const char *request) {
 	char label[25 + strlen(mesh->self->name) + strlen(c->name)];
 
 	if(c->outgoing)
-		snprintf(label, sizeof label, "tinc TCP key expansion %s %s", mesh->self->name, c->name);
+		snprintf(label, sizeof label, "meshlink TCP key expansion %s %s", mesh->self->name, c->name);
 	else
-		snprintf(label, sizeof label, "tinc TCP key expansion %s %s", c->name, mesh->self->name);
+		snprintf(label, sizeof label, "meshlink TCP key expansion %s %s", c->name, mesh->self->name);
 
 	return sptps_start(&c->sptps, c, c->outgoing, false, mesh->self->connection->ecdsa, c->ecdsa, label, sizeof label, send_meta_sptps, receive_meta_sptps);
 }
 
-bool send_ack(connection_t *c) {
-	/* ACK message contains rest of the information the other end needs
-	   to create node_t and edge_t structures. */
-
-	struct timeval now;
-	bool choice;
-
-	/* Estimate weight */
-
-	gettimeofday(&now, NULL);
-	c->estimated_weight = (now.tv_sec - c->start.tv_sec) * 1000 + (now.tv_usec - c->start.tv_usec) / 1000;
+bool send_ack(meshlink_handle_t *mesh, connection_t *c) {
 
 	/* Check some options */
 
 	if(mesh->self->options & OPTION_PMTU_DISCOVERY)
 		c->options |= OPTION_PMTU_DISCOVERY;
 
-	return send_request(c, "%d %s %d %x", ACK, mesh->myport, c->estimated_weight, (c->options & 0xffffff) | (PROT_MINOR << 24));
+	return send_request(mesh, c, "%d %s %d %x", ACK, mesh->myport, mesh->dclass, (c->options & 0xffffff) | (PROT_MINOR << 24));
 }
 
-static void send_everything(connection_t *c) {
+static void send_everything(meshlink_handle_t *mesh, connection_t *c) {
 	/* Send all known subnets and edges */
 
 	for splay_each(node_t, n, mesh->nodes) {
 		for splay_each(edge_t, e, n->edge_tree)
-			send_add_edge(c, e);
+			send_add_edge(mesh, c, e);
 	}
 }
 
-bool ack_h(connection_t *c, const char *request) {
+bool ack_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
 	char hisport[MAX_STRING_SIZE];
 	char *hisaddress;
-	int weight, mtu;
+	int dclass;
 	uint32_t options;
 	node_t *n;
-	bool choice;
 
-	if(sscanf(request, "%*d " MAX_STRING " %d %x", hisport, &weight, &options) != 3) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Got bad %s from %s (%s)", "ACK", c->name,
+	if(sscanf(request, "%*d " MAX_STRING " %d %x", hisport, &dclass, &options) != 3) {
+		logger(mesh, MESHLINK_ERROR, "Got bad %s from %s (%s)", "ACK", c->name,
 			   c->hostname);
 		return false;
 	}
 
 	/* Check if we already have a node_t for him */
 
-	n = lookup_node(c->name);
+	n = lookup_node(mesh, c->name);
 
 	if(!n) {
 		n = new_node();
 		n->name = xstrdup(c->name);
-		node_add(n);
+		node_add(mesh, n);
 	} else {
 		if(n->connection) {
 			/* Oh dear, we already have a connection to this node. */
-			logger(DEBUG_CONNECTIONS, LOG_DEBUG, "Established a second connection with %s (%s), closing old connection", n->connection->name, n->connection->hostname);
+			logger(mesh, MESHLINK_DEBUG, "Established a second connection with %s (%s), closing old connection", n->connection->name, n->connection->hostname);
 
 			if(n->connection->outgoing) {
 				if(c->outgoing)
-					logger(DEBUG_ALWAYS, LOG_WARNING, "Two outgoing connections to the same node!");
+					logger(mesh, MESHLINK_WARNING, "Two outgoing connections to the same node!");
 				else
 					c->outgoing = n->connection->outgoing;
 
 				n->connection->outgoing = NULL;
 			}
 
-			terminate_connection(n->connection, false);
+			terminate_connection(mesh, n->connection, false);
 			/* Run graph algorithm to keep things in sync */
-			graph();
+			graph(mesh);
 		}
 	}
 
+	n->dclass = dclass;
+	node_write_dclass(mesh, n);
+
 	n->connection = c;
 	c->node = n;
 	if(!(c->options & options & OPTION_PMTU_DISCOVERY)) {
@@ -441,12 +427,12 @@ bool ack_h(connection_t *c, const char *request) {
 	c->allow_request = ALL;
 	c->status.active = true;
 
-	logger(DEBUG_CONNECTIONS, LOG_NOTICE, "Connection with %s (%s) activated", c->name,
+	logger(mesh, MESHLINK_INFO, "Connection with %s (%s) activated", c->name,
 			   c->hostname);
 
 	/* Send him everything we know */
 
-	send_everything(c);
+	send_everything(mesh, c);
 
 	/* Create an edge_t for this connection */
 
@@ -456,19 +442,19 @@ bool ack_h(connection_t *c, const char *request) {
 	sockaddr2str(&c->address, &hisaddress, NULL);
 	c->edge->address = str2sockaddr(hisaddress, hisport);
 	free(hisaddress);
-	c->edge->weight = (weight + c->estimated_weight) / 2;
+	c->edge->weight = weight_from_dclass(dclass);
 	c->edge->connection = c;
 	c->edge->options = c->options;
 
-	edge_add(c->edge);
+	edge_add(mesh, c->edge);
 
 	/* Notify everyone of the new edge */
 
-	send_add_edge(mesh->everyone, c->edge);
+	send_add_edge(mesh, mesh->everyone, c->edge);
 
 	/* Run MST and SSSP algorithms */
 
-	graph();
+	graph(mesh);
 
 	return true;
 }