mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-23 20:03:31 +01:00
cleanup and a variety of bugfixes
svn:r132
This commit is contained in:
Roger Dingledine
parent
bef3424bec
commit
bf53852a00
@ -148,7 +148,7 @@ void connection_free(connection_t *conn) {
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free(conn);
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}
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int connection_create_listener(struct sockaddr_in *local, int type) {
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int connection_create_listener(struct sockaddr_in *bindaddr, int type) {
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connection_t *conn;
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int s;
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int one=1;
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@ -162,15 +162,14 @@ int connection_create_listener(struct sockaddr_in *local, int type) {
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setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
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if(bind(s,(struct sockaddr *)local,sizeof(*local)) < 0) {
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if(bind(s,(struct sockaddr *)bindaddr,sizeof(*bindaddr)) < 0) {
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perror("bind ");
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log(LOG_ERR,"Could not bind to local port %u.",ntohs(local->sin_port));
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log(LOG_ERR,"Could not bind to port %u.",ntohs(bindaddr->sin_port));
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return -1;
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}
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/* start local server */
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if(listen(s,SOMAXCONN) < 0) {
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log(LOG_ERR,"Could not listen on local port %u.",ntohs(local->sin_port));
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log(LOG_ERR,"Could not listen on port %u.",ntohs(bindaddr->sin_port));
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return -1;
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}
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@ -189,10 +188,7 @@ int connection_create_listener(struct sockaddr_in *local, int type) {
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return -1;
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}
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/* remember things so you can tell the baby sockets */
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memcpy(&conn->local,local,sizeof(struct sockaddr_in));
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log(LOG_DEBUG,"connection_create_listener(): Listening on local port %u.",ntohs(local->sin_port));
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log(LOG_DEBUG,"connection_create_listener(): Listening on port %u.",ntohs(bindaddr->sin_port));
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conn->state = LISTENER_STATE_READY;
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connection_start_reading(conn);
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@ -227,8 +223,6 @@ int connection_handle_listener_read(connection_t *conn, int new_type, int new_st
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newconn->bandwidth = -1;
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}
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/* learn things from parent, so we can perform auth */
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memcpy(&newconn->local,&conn->local,sizeof(struct sockaddr_in));
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newconn->address = strdup(inet_ntoa(remote.sin_addr)); /* remember the remote address */
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if(connection_add(newconn) < 0) { /* no space, forget it */
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@ -243,88 +237,53 @@ int connection_handle_listener_read(connection_t *conn, int new_type, int new_st
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return 0;
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}
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/* create the 'local' variable used below */
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int learn_local(struct sockaddr_in *local) {
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/* local host information */
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char localhostname[512];
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struct hostent *localhost;
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/* obtain local host information */
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if(gethostname(localhostname,512) < 0) {
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log(LOG_ERR,"Error obtaining local hostname.");
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return -1;
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}
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log(LOG_DEBUG,"learn_local: localhostname is '%s'.",localhostname);
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localhost = gethostbyname(localhostname);
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if (!localhost) {
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log(LOG_ERR,"Error obtaining local host info.");
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return -1;
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}
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memset((void *)local,0,sizeof(struct sockaddr_in));
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local->sin_family = AF_INET;
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memcpy((void *)&local->sin_addr,(void *)localhost->h_addr,sizeof(struct in_addr));
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log(LOG_DEBUG,"learn_local: chose address as '%s'.",inet_ntoa(local->sin_addr));
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return 0;
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}
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int retry_all_connections(int role, uint16_t or_listenport,
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uint16_t op_listenport, uint16_t ap_listenport, uint16_t dir_listenport) {
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/* start all connections that should be up but aren't */
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struct sockaddr_in local; /* local address */
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struct sockaddr_in bindaddr; /* where to bind */
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if(learn_local(&local) < 0)
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return -1;
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local.sin_port = htons(or_listenport);
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if(role & ROLE_OR_CONNECT_ALL) {
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router_retry_connections(&local);
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router_retry_connections();
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}
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local.sin_addr.s_addr = htonl(INADDR_ANY); /* anyone can connect */
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memset(&bindaddr,0,sizeof(struct sockaddr_in));
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bindaddr.sin_family = AF_INET;
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bindaddr.sin_addr.s_addr = htonl(INADDR_ANY); /* anyone can connect */
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if(role & ROLE_OR_LISTEN) {
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bindaddr.sin_port = htons(or_listenport);
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if(!connection_get_by_type(CONN_TYPE_OR_LISTENER)) {
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connection_or_create_listener(&local);
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connection_or_create_listener(&bindaddr);
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}
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}
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if(role & ROLE_OP_LISTEN) {
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local.sin_port = htons(op_listenport);
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bindaddr.sin_port = htons(op_listenport);
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if(!connection_get_by_type(CONN_TYPE_OP_LISTENER)) {
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connection_op_create_listener(&local);
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connection_op_create_listener(&bindaddr);
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}
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}
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if(role & ROLE_DIR_LISTEN) {
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local.sin_port = htons(dir_listenport);
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bindaddr.sin_port = htons(dir_listenport);
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if(!connection_get_by_type(CONN_TYPE_DIR_LISTENER)) {
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connection_dir_create_listener(&local);
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connection_dir_create_listener(&bindaddr);
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}
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}
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if(role & ROLE_AP_LISTEN) {
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local.sin_port = htons(ap_listenport);
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inet_aton("127.0.0.1", &(local.sin_addr)); /* the AP listens only on localhost! */
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bindaddr.sin_port = htons(ap_listenport);
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inet_aton("127.0.0.1", &(bindaddr.sin_addr)); /* the AP listens only on localhost! */
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if(!connection_get_by_type(CONN_TYPE_AP_LISTENER)) {
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connection_ap_create_listener(&local);
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connection_ap_create_listener(&bindaddr);
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}
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}
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return 0;
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}
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connection_t *connection_connect_to_router_as_op(routerinfo_t *router, uint16_t local_or_port) {
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struct sockaddr_in local; /* local address */
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if(learn_local(&local) < 0)
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return NULL;
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local.sin_port = htons(local_or_port);
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return connection_or_connect_as_op(router, &local);
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}
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int connection_read_to_buf(connection_t *conn) {
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int read_result;
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struct timeval now;
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@ -205,7 +205,7 @@ int ap_handshake_establish_circuit(connection_t *conn, unsigned int *route, int
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connection_stop_reading(conn); /* Stop listening for input from the AP! */
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if(!n_conn) { /* launch the connection */
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n_conn = connect_to_router_as_op(firsthop);
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n_conn = connection_or_connect_as_op(firsthop);
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if(!n_conn) { /* connect failed, forget the whole thing */
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log(LOG_DEBUG,"ap_handshake_establish_circuit(): connect to firsthop failed. Closing.");
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circuit_close(circ);
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@ -393,9 +393,9 @@ int connection_ap_finished_flushing(connection_t *conn) {
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}
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int connection_ap_create_listener(struct sockaddr_in *local) {
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int connection_ap_create_listener(struct sockaddr_in *bindaddr) {
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log(LOG_DEBUG,"connection_create_ap_listener starting");
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return connection_create_listener(local, CONN_TYPE_AP_LISTENER);
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return connection_create_listener(bindaddr, CONN_TYPE_AP_LISTENER);
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}
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int connection_ap_handle_listener_read(connection_t *conn) {
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@ -120,6 +120,7 @@ int connection_exit_process_data_cell(cell_t *cell, connection_t *conn) {
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return -1;
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}
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memcpy(&conn->addr, rent->h_addr,rent->h_length);
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conn->addr = ntohl(conn->addr); /* get it back to host order */
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log(LOG_DEBUG,"connection_exit_process_data_cell(): addr is %s.",cell->payload);
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} else if (!conn->port) { /* this cell contains the dest port */
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if(!memchr(cell->payload,'\0',cell->length)) {
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@ -143,7 +144,7 @@ int connection_exit_process_data_cell(cell_t *cell, connection_t *conn) {
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memset((void *)&dest_addr,0,sizeof(dest_addr));
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dest_addr.sin_family = AF_INET;
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dest_addr.sin_port = htons(conn->port);
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memcpy((void *)&dest_addr.sin_addr, &conn->addr, sizeof(uint32_t));
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dest_addr.sin_addr.s_addr = htonl(conn->addr);
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log(LOG_DEBUG,"connection_exit_process_data_cell(): Connecting to %s:%u.",conn->address,conn->port);
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@ -110,9 +110,9 @@ int connection_op_finished_flushing(connection_t *conn) {
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}
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int connection_op_create_listener(struct sockaddr_in *local) {
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int connection_op_create_listener(struct sockaddr_in *bindaddr) {
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log(LOG_DEBUG,"connection_create_op_listener starting");
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return connection_create_listener(local, CONN_TYPE_OP_LISTENER);
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return connection_create_listener(bindaddr, CONN_TYPE_OP_LISTENER);
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}
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int connection_op_handle_listener_read(connection_t *conn) {
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@ -142,8 +142,7 @@ void conn_or_init_crypto(connection_t *conn) {
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* *result to 1 if connect() returned before completing, or to 2
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* if it completed, and returns the new conn.
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*/
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connection_t *connection_or_connect(routerinfo_t *router, struct sockaddr_in *local,
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uint16_t port, int *result) {
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connection_t *connection_or_connect(routerinfo_t *router, uint16_t port, int *result) {
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connection_t *conn;
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struct sockaddr_in router_addr;
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int s;
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@ -153,11 +152,11 @@ connection_t *connection_or_connect(routerinfo_t *router, struct sockaddr_in *lo
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return NULL;
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/* set up conn so it's got all the data we need to remember */
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conn->addr = router->addr, conn->port = router->or_port; /* NOTE we store or_port here always */
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conn->addr = router->addr;
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conn->port = router->or_port; /* NOTE we store or_port here always */
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conn->bandwidth = router->bandwidth;
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conn->pkey = crypto_pk_dup_key(router->pkey);
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conn->address = strdup(router->address);
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memcpy(&conn->local,local,sizeof(struct sockaddr_in));
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s=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
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if (s < 0)
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@ -171,9 +170,9 @@ connection_t *connection_or_connect(routerinfo_t *router, struct sockaddr_in *lo
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memset((void *)&router_addr,0,sizeof(router_addr));
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router_addr.sin_family = AF_INET;
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router_addr.sin_port = htons(port);
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router_addr.sin_addr.s_addr = router->addr;
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router_addr.sin_addr.s_addr = htonl(router->addr);
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log(LOG_DEBUG,"connection_or_connect() : Trying to connect to %s:%u.",inet_ntoa(*(struct in_addr *)&router->addr),port);
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log(LOG_DEBUG,"connection_or_connect() : Trying to connect to %s:%u.",router->address,port);
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if(connect(s,(struct sockaddr *)&router_addr,sizeof(router_addr)) < 0){
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if(errno != EINPROGRESS){
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@ -217,13 +216,13 @@ connection_t *connection_or_connect(routerinfo_t *router, struct sockaddr_in *lo
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*
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*/
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connection_t *connection_or_connect_as_op(routerinfo_t *router, struct sockaddr_in *local) {
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connection_t *connection_or_connect_as_op(routerinfo_t *router) {
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connection_t *conn;
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int result=0; /* so connection_or_connect() can tell us what happened */
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assert(router && local);
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assert(router);
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if(router->addr == local->sin_addr.s_addr && router->or_port == ntohs(local->sin_port)) {
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if(router_is_me(router->addr, router->or_port)) {
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/* this is me! don't connect to me. */
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log(LOG_WARNING,"connection_or_connect_as_op(): You just asked me to connect to myself.");
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return NULL;
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@ -235,7 +234,7 @@ connection_t *connection_or_connect_as_op(routerinfo_t *router, struct sockaddr_
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if(conn)
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return conn;
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conn = connection_or_connect(router, local, router->op_port, &result);
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conn = connection_or_connect(router, router->op_port, &result);
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if(!conn)
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return NULL;
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@ -340,19 +339,19 @@ int or_handshake_op_finished_sending_keys(connection_t *conn) {
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*
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*/
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connection_t *connection_or_connect_as_or(routerinfo_t *router, struct sockaddr_in *local) {
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connection_t *connection_or_connect_as_or(routerinfo_t *router) {
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connection_t *conn;
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int result=0; /* so connection_or_connect() can tell us what happened */
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assert(router && local);
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assert(router);
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if(router->addr == local->sin_addr.s_addr && router->or_port == ntohs(local->sin_port)) {
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if(router_is_me(router->addr, router->or_port)) {
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/* this is me! don't connect to me. */
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log(LOG_DEBUG,"connection_or_connect_as_or(): This is me. Skipping.");
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return NULL;
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}
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conn = connection_or_connect(router, local, router->or_port, &result);
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conn = connection_or_connect(router, router->or_port, &result);
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if(!conn)
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return NULL;
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@ -378,9 +377,13 @@ int or_handshake_client_send_auth(connection_t *conn) {
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int retval;
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char buf[44];
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char cipher[128];
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struct sockaddr_in me; /* my router identity */
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assert(conn);
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if(learn_my_address(&me) < 0)
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return -1;
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/* generate random keys */
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if(crypto_cipher_generate_key(conn->f_crypto) ||
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crypto_cipher_generate_key(conn->b_crypto)) {
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@ -390,8 +393,8 @@ int or_handshake_client_send_auth(connection_t *conn) {
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log(LOG_DEBUG,"or_handshake_client_send_auth() : Generated DES keys.");
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/* generate first message */
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*(uint32_t*)buf = htonl(conn->local.sin_addr.s_addr); /* local address */
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*(uint16_t*)(buf+4) = conn->local.sin_port; /* local port, already network order */
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*(uint32_t*)buf = me.sin_addr.s_addr; /* local address, network order */
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*(uint16_t*)(buf+4) = me.sin_port; /* local port, network order */
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*(uint32_t*)(buf+6) = htonl(conn->addr); /* remote address */
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*(uint16_t*)(buf+10) = htons(conn->port); /* remote port */
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memcpy(buf+12,conn->f_crypto->key,8); /* keys */
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@ -440,9 +443,13 @@ int or_handshake_client_process_auth(connection_t *conn) {
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char cipher[128];
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uint32_t bandwidth;
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int retval;
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struct sockaddr_in me; /* my router identity */
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assert(conn);
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if(learn_my_address(&me) < 0)
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return -1;
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if(conn->inbuf_datalen < 128) /* entire response available? */
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return 0; /* not yet */
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@ -469,8 +476,8 @@ int or_handshake_client_process_auth(connection_t *conn) {
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}
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log(LOG_DEBUG,"or_handshake_client_process_auth() : Decrypted response.");
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/* check validity */
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if ( (ntohl(*(uint32_t*)buf) != conn->local.sin_addr.s_addr) || /* local address */
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(*(uint16_t*)(buf+4) != conn->local.sin_port) || /* local port, keep network order */
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if ( (*(uint32_t*)buf != me.sin_addr.s_addr) || /* local address, network order */
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(*(uint16_t*)(buf+4) != me.sin_port) || /* local port, network order */
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(ntohl(*(uint32_t*)(buf+6)) != conn->addr) || /* remote address */
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(ntohs(*(uint16_t*)(buf+10)) != conn->port) || /* remote port */
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(memcmp(conn->f_crypto->key, buf+12, 8)) || /* keys */
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@ -582,7 +589,7 @@ int or_handshake_server_process_auth(connection_t *conn) {
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router = router_get_by_addr_port(addr,port);
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if (!router)
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{
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log(LOG_DEBUG,"or_handshake_server_process_auth() : Received a connection from an unknown router. Will drop.");
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log(LOG_DEBUG,"or_handshake_server_process_auth() : Received a connection from an unknown router '%s:%d'. Will drop.", conn->address, port);
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return -1;
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}
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log(LOG_DEBUG,"or_handshake_server_process_auth() : Router identified as %s:%u.",
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@ -664,9 +671,13 @@ int or_handshake_server_process_nonce(connection_t *conn) {
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char buf[128];
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char cipher[128];
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int retval;
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struct sockaddr_in me; /* my router identity */
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assert(conn);
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if(learn_my_address(&me) < 0)
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return -1;
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if(conn->inbuf_datalen < 128) /* entire response available? */
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return 0; /* not yet */
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@ -696,8 +707,8 @@ int or_handshake_server_process_nonce(connection_t *conn) {
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/* check validity */
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if ((ntohl(*(uint32_t*)buf) != conn->addr) || /* remote address */
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(ntohs(*(uint16_t*)(buf+4)) != conn->port) || /* remote port */
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(ntohl(*(uint32_t*)(buf+6)) != conn->local.sin_addr.s_addr) || /* local address */
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(*(uint16_t*)(buf+10) != conn->local.sin_port) || /* local port, network order */
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(*(uint32_t*)(buf+6) != me.sin_addr.s_addr) || /* local address, network order */
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(*(uint16_t*)(buf+10) != me.sin_port) || /* local port, network order */
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(memcmp(conn->nonce,buf+12,8))) /* nonce */
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{
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log(LOG_ERR,"Router %s:%u failed to authenticate. Either the key I have is obsolete or they're doing something they're not supposed to.",conn->address,conn->port);
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@ -717,9 +728,9 @@ int or_handshake_server_process_nonce(connection_t *conn) {
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/* ********************************** */
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int connection_or_create_listener(struct sockaddr_in *local) {
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int connection_or_create_listener(struct sockaddr_in *bindaddr) {
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log(LOG_DEBUG,"connection_create_or_listener starting");
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return connection_create_listener(local, CONN_TYPE_OR_LISTENER);
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return connection_create_listener(bindaddr, CONN_TYPE_OR_LISTENER);
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}
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int connection_or_handle_listener_read(connection_t *conn) {
|
||||
|
||||
@ -54,9 +54,9 @@ void directory_initiate_fetch(routerinfo_t *router) {
|
||||
memset((void *)&router_addr,0,sizeof(router_addr));
|
||||
router_addr.sin_family = AF_INET;
|
||||
router_addr.sin_port = htons(router->dir_port);
|
||||
router_addr.sin_addr.s_addr = router->addr;
|
||||
router_addr.sin_addr.s_addr = htonl(router->addr);
|
||||
|
||||
log(LOG_DEBUG,"directory_initiate_fetch(): Trying to connect to %s:%u.",inet_ntoa(*(struct in_addr *)&router->addr),router->dir_port);
|
||||
log(LOG_DEBUG,"directory_initiate_fetch(): Trying to connect to %s:%u.",router->address,router->dir_port);
|
||||
|
||||
if(connect(s,(struct sockaddr *)&router_addr,sizeof(router_addr)) < 0){
|
||||
if(errno != EINPROGRESS){
|
||||
@ -133,15 +133,11 @@ int connection_dir_process_inbuf(connection_t *conn) {
|
||||
log(LOG_DEBUG,"connection_dir_process_inbuf(): Empty directory. Ignoring.");
|
||||
return -1;
|
||||
}
|
||||
if(router_get_list_from_string(the_directory, options.ORPort) < 0) {
|
||||
if(router_get_list_from_string(the_directory) < 0) {
|
||||
log(LOG_DEBUG,"connection_dir_process_inbuf(): ...but parsing failed. Ignoring.");
|
||||
}
|
||||
if(options.Role & ROLE_OR_CONNECT_ALL) { /* connect to them all */
|
||||
struct sockaddr_in local; /* local address */
|
||||
if(learn_local(&local) < 0)
|
||||
return -1;
|
||||
local.sin_port = htons(options.ORPort);
|
||||
router_retry_connections(&local);
|
||||
router_retry_connections();
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
@ -277,9 +273,9 @@ int connection_dir_finished_flushing(connection_t *conn) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
int connection_dir_create_listener(struct sockaddr_in *local) {
|
||||
int connection_dir_create_listener(struct sockaddr_in *bindaddr) {
|
||||
log(LOG_DEBUG,"connection_create_dir_listener starting");
|
||||
return connection_create_listener(local, CONN_TYPE_DIR_LISTENER);
|
||||
return connection_create_listener(bindaddr, CONN_TYPE_DIR_LISTENER);
|
||||
}
|
||||
|
||||
int connection_dir_handle_listener_read(connection_t *conn) {
|
||||
|
||||
@ -162,11 +162,6 @@ connection_t *connection_get_by_type(int type) {
|
||||
|
||||
|
||||
|
||||
/* FIXME can we cut this function out? */
|
||||
connection_t *connect_to_router_as_op(routerinfo_t *router) {
|
||||
return connection_connect_to_router_as_op(router, options.ORPort);
|
||||
}
|
||||
|
||||
void connection_watch_events(connection_t *conn, short events) {
|
||||
|
||||
assert(conn && conn->poll_index < nfds);
|
||||
@ -446,7 +441,7 @@ int do_main_loop(void) {
|
||||
crypto_pk_env_t *prkey;
|
||||
|
||||
/* load the routers file */
|
||||
if(router_get_list_from_file(options.RouterFile, options.ORPort) < 0) {
|
||||
if(router_get_list_from_file(options.RouterFile) < 0) {
|
||||
log(LOG_ERR,"Error loading router list.");
|
||||
return -1;
|
||||
}
|
||||
@ -478,7 +473,7 @@ int do_main_loop(void) {
|
||||
}
|
||||
if(please_fetch_directory) {
|
||||
if(options.Role & ROLE_DIR_SERVER) {
|
||||
if(router_get_list_from_file(options.RouterFile, options.ORPort) < 0) {
|
||||
if(router_get_list_from_file(options.RouterFile) < 0) {
|
||||
log(LOG_ERR,"Error reloading router list. Continuing with old list.");
|
||||
}
|
||||
} else {
|
||||
|
||||
@ -29,6 +29,10 @@ int decide_aci_type(uint32_t local_addr, uint16_t local_port,
|
||||
|
||||
int process_onion(circuit_t *circ, connection_t *conn) {
|
||||
aci_t aci_type;
|
||||
struct sockaddr_in me; /* my router identity */
|
||||
|
||||
if(learn_my_address(&me) < 0)
|
||||
return -1;
|
||||
|
||||
if(!decrypt_onion((onion_layer_t *)circ->onion,circ->onionlen,getprivatekey())) {
|
||||
log(LOG_DEBUG,"command_process_create_cell(): decrypt_onion() failed, closing circuit.");
|
||||
@ -43,7 +47,7 @@ int process_onion(circuit_t *circ, connection_t *conn) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
aci_type = decide_aci_type(conn->local.sin_addr.s_addr, ntohs(conn->local.sin_port),
|
||||
aci_type = decide_aci_type(ntohl(me.sin_addr.s_addr), ntohs(me.sin_port),
|
||||
((onion_layer_t *)circ->onion)->addr,((onion_layer_t *)circ->onion)->port);
|
||||
|
||||
if(circuit_init(circ, aci_type) < 0) {
|
||||
|
||||
38
src/or/or.h
38
src/or/or.h
@ -216,7 +216,7 @@ typedef struct
|
||||
// struct timeval lastsend; /* time of last transmission to the client */
|
||||
// struct timeval interval; /* transmission interval */
|
||||
|
||||
uint32_t addr; /* these two uniquely identify a router */
|
||||
uint32_t addr; /* these two uniquely identify a router. Both in host order. */
|
||||
uint16_t port;
|
||||
|
||||
/* used by exit and ap: */
|
||||
@ -228,15 +228,11 @@ typedef struct
|
||||
char read_username;
|
||||
|
||||
char *dest_addr;
|
||||
uint16_t dest_port;
|
||||
uint16_t dest_port; /* host order */
|
||||
|
||||
char dest_tmp[512];
|
||||
int dest_tmplen;
|
||||
|
||||
/* used by OR, to keep state while connect()ing: Kludge. */
|
||||
|
||||
struct sockaddr_in local;
|
||||
|
||||
#if 0 /* obsolete, we now use conn->bandwidth */
|
||||
/* link info */
|
||||
uint32_t min;
|
||||
@ -255,7 +251,7 @@ typedef struct
|
||||
{
|
||||
char *address;
|
||||
|
||||
uint32_t addr;
|
||||
uint32_t addr; /* all host order */
|
||||
uint16_t or_port;
|
||||
uint16_t op_port;
|
||||
uint16_t ap_port;
|
||||
@ -462,15 +458,13 @@ connection_t *connection_new(int type);
|
||||
|
||||
void connection_free(connection_t *conn);
|
||||
|
||||
int connection_create_listener(struct sockaddr_in *local, int type);
|
||||
int connection_create_listener(struct sockaddr_in *bindaddr, int type);
|
||||
|
||||
int connection_handle_listener_read(connection_t *conn, int new_type, int new_state);
|
||||
|
||||
/* start all connections that should be up but aren't */
|
||||
int learn_local(struct sockaddr_in *local);
|
||||
int retry_all_connections(int role, uint16_t or_listenport,
|
||||
uint16_t op_listenport, uint16_t ap_listenport, uint16_t dir_listenport);
|
||||
connection_t *connection_connect_to_router_as_op(routerinfo_t *router, uint16_t local_or_port);
|
||||
|
||||
int connection_read_to_buf(connection_t *conn);
|
||||
|
||||
@ -527,7 +521,7 @@ int connection_ap_process_data_cell(cell_t *cell, connection_t *conn);
|
||||
|
||||
int connection_ap_finished_flushing(connection_t *conn);
|
||||
|
||||
int connection_ap_create_listener(struct sockaddr_in *local);
|
||||
int connection_ap_create_listener(struct sockaddr_in *bindaddr);
|
||||
|
||||
int connection_ap_handle_listener_read(connection_t *conn);
|
||||
|
||||
@ -549,7 +543,7 @@ int connection_op_process_inbuf(connection_t *conn);
|
||||
|
||||
int connection_op_finished_flushing(connection_t *conn);
|
||||
|
||||
int connection_op_create_listener(struct sockaddr_in *local);
|
||||
int connection_op_create_listener(struct sockaddr_in *bindaddr);
|
||||
|
||||
int connection_op_handle_listener_read(connection_t *conn);
|
||||
|
||||
@ -569,11 +563,11 @@ int or_handshake_client_send_auth(connection_t *conn);
|
||||
int or_handshake_server_process_auth(connection_t *conn);
|
||||
int or_handshake_server_process_nonce(connection_t *conn);
|
||||
|
||||
connection_t *connect_to_router_as_or(routerinfo_t *router, struct sockaddr_in *local);
|
||||
connection_t *connection_or_connect_as_or(routerinfo_t *router, struct sockaddr_in *local);
|
||||
connection_t *connection_or_connect_as_op(routerinfo_t *router, struct sockaddr_in *local);
|
||||
connection_t *connect_to_router_as_or(routerinfo_t *router);
|
||||
connection_t *connection_or_connect_as_or(routerinfo_t *router);
|
||||
connection_t *connection_or_connect_as_op(routerinfo_t *router);
|
||||
|
||||
int connection_or_create_listener(struct sockaddr_in *local);
|
||||
int connection_or_create_listener(struct sockaddr_in *bindaddr);
|
||||
int connection_or_handle_listener_read(connection_t *conn);
|
||||
|
||||
/********************************* directory.c ***************************/
|
||||
@ -585,7 +579,7 @@ int connection_dir_process_inbuf(connection_t *conn);
|
||||
int directory_handle_command(connection_t *conn);
|
||||
int directory_handle_reading(connection_t *conn);
|
||||
int connection_dir_finished_flushing(connection_t *conn);
|
||||
int connection_dir_create_listener(struct sockaddr_in *local);
|
||||
int connection_dir_create_listener(struct sockaddr_in *bindaddr);
|
||||
int connection_dir_handle_listener_read(connection_t *conn);
|
||||
|
||||
/********************************* main.c ***************************/
|
||||
@ -601,8 +595,6 @@ connection_t *connection_exact_get_by_addr_port(uint32_t addr, uint16_t port);
|
||||
|
||||
connection_t *connection_get_by_type(int type);
|
||||
|
||||
connection_t *connect_to_router_as_op(routerinfo_t *router);
|
||||
|
||||
void connection_watch_events(connection_t *conn, short events);
|
||||
void connection_stop_reading(connection_t *conn);
|
||||
void connection_start_reading(connection_t *conn);
|
||||
@ -665,14 +657,16 @@ crypto_cipher_env_t *create_onion_cipher(int cipher_type, char *key, char *iv, i
|
||||
|
||||
/********************************* routers.c ***************************/
|
||||
|
||||
void router_retry_connections(struct sockaddr_in *local);
|
||||
int learn_my_address(struct sockaddr_in *me);
|
||||
void router_retry_connections(void);
|
||||
routerinfo_t *router_pick_directory_server(void);
|
||||
routerinfo_t *router_get_by_addr_port(uint32_t addr, uint16_t port);
|
||||
unsigned int *router_new_route(int *routelen);
|
||||
unsigned char *router_create_onion(unsigned int *route, int routelen, int *len, crypt_path_t **cpath);
|
||||
int router_is_me(uint32_t addr, uint16_t port);
|
||||
routerinfo_t *router_get_first_in_route(unsigned int *route, int routelen);
|
||||
void router_forget_router(uint32_t addr, uint16_t port);
|
||||
int router_get_list_from_file(char *routerfile, uint16_t or_listenport);
|
||||
int router_get_list_from_string(char *s, uint16_t or_listenport);
|
||||
int router_get_list_from_file(char *routerfile);
|
||||
int router_get_list_from_string(char *s);
|
||||
|
||||
#endif
|
||||
|
||||
@ -26,7 +26,6 @@ extern routerinfo_t *my_routerinfo; /* from main.c */
|
||||
/****************************************************************************/
|
||||
|
||||
/* static function prototypes */
|
||||
static int router_is_me(uint32_t or_address, uint16_t or_listenport, uint16_t my_or_listenport);
|
||||
static void routerlist_free(routerinfo_t *list);
|
||||
static routerinfo_t **make_rarray(routerinfo_t* list, int *len);
|
||||
static char *eat_whitespace(char *s);
|
||||
@ -35,7 +34,32 @@ static routerinfo_t *router_get_entry_from_string(char **s);
|
||||
|
||||
/****************************************************************************/
|
||||
|
||||
void router_retry_connections(struct sockaddr_in *local) {
|
||||
int learn_my_address(struct sockaddr_in *me) {
|
||||
/* local host information */
|
||||
char localhostname[512];
|
||||
struct hostent *localhost;
|
||||
|
||||
/* obtain local host information */
|
||||
if(gethostname(localhostname,512) < 0) {
|
||||
log(LOG_ERR,"Error obtaining local hostname.");
|
||||
return -1;
|
||||
}
|
||||
log(LOG_DEBUG,"learn_my_address(): localhostname is '%s'.",localhostname);
|
||||
localhost = gethostbyname(localhostname);
|
||||
if (!localhost) {
|
||||
log(LOG_ERR,"Error obtaining local host info.");
|
||||
return -1;
|
||||
}
|
||||
memset((void *)me,0,sizeof(struct sockaddr_in));
|
||||
me->sin_family = AF_INET;
|
||||
memcpy((void *)&me->sin_addr,(void *)localhost->h_addr,sizeof(struct in_addr));
|
||||
me->sin_port = htons(options.ORPort);
|
||||
log(LOG_DEBUG,"learn_my_address(): chose address as '%s'.",inet_ntoa(me->sin_addr));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void router_retry_connections(void) {
|
||||
int i;
|
||||
routerinfo_t *router;
|
||||
|
||||
@ -43,7 +67,7 @@ void router_retry_connections(struct sockaddr_in *local) {
|
||||
router = router_array[i];
|
||||
if(!connection_exact_get_by_addr_port(router->addr,router->or_port)) { /* not in the list */
|
||||
log(LOG_DEBUG,"retry_all_connections(): connecting to OR %s:%u.",router->address,router->or_port);
|
||||
connection_or_connect_as_or(router, local);
|
||||
connection_or_connect_as_or(router);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -94,9 +118,27 @@ unsigned char *router_create_onion(unsigned int *route, int routelen, int *len,
|
||||
return create_onion(router_array,rarray_len,route,routelen,len,cpath);
|
||||
}
|
||||
|
||||
/* private function, to determine whether the current entry in the router list is actually us */
|
||||
static int router_is_me(uint32_t or_address, uint16_t or_listenport, uint16_t my_or_listenport)
|
||||
/* return 1 if addr and port corresponds to my addr and my or_listenport. else 0,
|
||||
* or -1 for failure.
|
||||
*/
|
||||
int router_is_me(uint32_t addr, uint16_t port)
|
||||
{
|
||||
struct sockaddr_in me; /* my router identity */
|
||||
|
||||
if(!ROLE_IS_OR(global_role)) {
|
||||
/* we're not an OR. This obviously isn't us. */
|
||||
return 0;
|
||||
}
|
||||
|
||||
if(learn_my_address(&me) < 0)
|
||||
return -1;
|
||||
|
||||
if(ntohl(me.sin_addr.s_addr) == addr && ntohs(me.sin_port) == port)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
|
||||
#if 0
|
||||
/* local host information */
|
||||
char localhostname[512];
|
||||
struct hostent *localhost;
|
||||
@ -106,11 +148,6 @@ static int router_is_me(uint32_t or_address, uint16_t or_listenport, uint16_t my
|
||||
char *addr = NULL;
|
||||
int i = 0;
|
||||
|
||||
if(!ROLE_IS_OR(global_role)) {
|
||||
/* we're not an OR. This obviously isn't us. */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* obtain local host information */
|
||||
if (gethostname(localhostname,512) < 0) {
|
||||
log(LOG_ERR,"router_is_me(): Error obtaining local hostname.");
|
||||
@ -146,6 +183,7 @@ static int router_is_me(uint32_t or_address, uint16_t or_listenport, uint16_t my
|
||||
}
|
||||
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
/* delete a list of routers from memory */
|
||||
@ -244,7 +282,7 @@ static routerinfo_t **make_rarray(routerinfo_t* list, int *len)
|
||||
|
||||
|
||||
/* load the router list */
|
||||
int router_get_list_from_file(char *routerfile, uint16_t or_listenport)
|
||||
int router_get_list_from_file(char *routerfile)
|
||||
{
|
||||
int fd; /* router file */
|
||||
struct stat statbuf;
|
||||
@ -285,7 +323,7 @@ int router_get_list_from_file(char *routerfile, uint16_t or_listenport)
|
||||
|
||||
string[statbuf.st_size] = 0; /* null terminate it */
|
||||
|
||||
if(router_get_list_from_string(string, or_listenport) < 0) {
|
||||
if(router_get_list_from_string(string) < 0) {
|
||||
log(LOG_ERR,"router_get_list_from_file(): The routerfile itself was corrupt.");
|
||||
free(string);
|
||||
return -1;
|
||||
@ -295,7 +333,7 @@ int router_get_list_from_file(char *routerfile, uint16_t or_listenport)
|
||||
return 0;
|
||||
}
|
||||
|
||||
int router_get_list_from_string(char *s, uint16_t or_listenport) {
|
||||
int router_get_list_from_string(char *s) {
|
||||
routerinfo_t *routerlist=NULL;
|
||||
routerinfo_t *router;
|
||||
routerinfo_t **new_router_array;
|
||||
@ -309,12 +347,19 @@ int router_get_list_from_string(char *s, uint16_t or_listenport) {
|
||||
routerlist_free(routerlist);
|
||||
return -1;
|
||||
}
|
||||
if(!router_is_me(router->addr, router->or_port, or_listenport)) {
|
||||
switch(router_is_me(router->addr, router->or_port)) {
|
||||
case 0: /* it's not me */
|
||||
router->next = routerlist;
|
||||
routerlist = router;
|
||||
} else {
|
||||
break;
|
||||
case 1: /* it is me */
|
||||
if(!my_routerinfo) /* save it, so we can use it for directories */
|
||||
my_routerinfo = router;
|
||||
break;
|
||||
default:
|
||||
log(LOG_ERR,"router_get_list_from_string(): router_is_me returned error.");
|
||||
routerlist_free(routerlist);
|
||||
return -1;
|
||||
}
|
||||
s = eat_whitespace(s);
|
||||
}
|
||||
@ -392,6 +437,7 @@ static routerinfo_t *router_get_entry_from_string(char **s) {
|
||||
}
|
||||
assert(rent->h_length == 4);
|
||||
memcpy(&router->addr, rent->h_addr,rent->h_length);
|
||||
router->addr = ntohl(router->addr); /* get it back into host order */
|
||||
|
||||
/* read router->or_port */
|
||||
NEXT_TOKEN(s, next);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user