[tor-commits] [tor/master] Move entry-only fields from edge_connection_t to entry_connection_t

commit 569fe936b8349082d6f9dcd4e55f7d5758d236be Author: Nick Mathewson nickm@torproject.org Date: Wed Jul 20 12:55:42 2011 -0400

Move entry-only fields from edge_connection_t to entry_connection_t

Also, refactor the code accordingly. --- src/or/circuitbuild.c | 15 +- src/or/circuituse.c | 99 ++++++----- src/or/circuituse.h | 6 +- src/or/connection.c | 80 +++++----- src/or/connection_edge.c | 424 ++++++++++++++++++++++++---------------------- src/or/connection_edge.h | 32 ++-- src/or/control.c | 64 ++++---- src/or/control.h | 2 +- src/or/directory.c | 9 +- src/or/dnsserv.c | 48 +++--- src/or/dnsserv.h | 4 +- src/or/hibernate.c | 2 +- src/or/main.c | 8 +- src/or/or.h | 90 ++++++----- src/or/relay.c | 102 +++++++----- src/or/rendclient.c | 34 ++-- 16 files changed, 541 insertions(+), 478 deletions(-)

diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c index f7d5524..39a50ab 100644 --- a/src/or/circuitbuild.c +++ b/src/or/circuitbuild.c @@ -2648,14 +2648,19 @@ node_handles_some_port(const node_t *node, smartlist_t *needed_ports) static int ap_stream_wants_exit_attention(connection_t *conn) { + entry_connection_t *entry; + if (conn->type != CONN_TYPE_AP) + return 0; + entry = TO_ENTRY_CONN(conn); + if (conn->type == CONN_TYPE_AP && conn->state == AP_CONN_STATE_CIRCUIT_WAIT && !conn->marked_for_close && - !(TO_EDGE_CONN(conn)->want_onehop) && /* ignore one-hop streams */ - !(TO_EDGE_CONN(conn)->use_begindir) && /* ignore targeted dir fetches */ - !(TO_EDGE_CONN(conn)->chosen_exit_name) && /* ignore defined streams */ + !(entry->want_onehop) && /* ignore one-hop streams */ + !(entry->use_begindir) && /* ignore targeted dir fetches */ + !(entry->chosen_exit_name) && /* ignore defined streams */ !connection_edge_is_rendezvous_stream(TO_EDGE_CONN(conn)) && - !circuit_stream_is_being_handled(TO_EDGE_CONN(conn), 0, + !circuit_stream_is_being_handled(TO_ENTRY_CONN(conn), 0, MIN_CIRCUITS_HANDLING_STREAM)) return 1; return 0; @@ -2760,7 +2765,7 @@ choose_good_exit_server_general(int need_uptime, int need_capacity) SMARTLIST_FOREACH_BEGIN(connections, connection_t *, conn) { if (!ap_stream_wants_exit_attention(conn)) continue; /* Skip everything but APs in CIRCUIT_WAIT */ - if (connection_ap_can_use_exit(TO_EDGE_CONN(conn), node)) { + if (connection_ap_can_use_exit(TO_ENTRY_CONN(conn), node)) { ++n_supported[i]; // log_fn(LOG_DEBUG,"%s is supported. n_supported[%d] now %d.", // router->nickname, i, n_supported[i]); diff --git a/src/or/circuituse.c b/src/or/circuituse.c index 91f7573..f7f080d 100644 --- a/src/or/circuituse.c +++ b/src/or/circuituse.c @@ -41,7 +41,7 @@ static void circuit_increment_failure_count(void); */ static int circuit_is_acceptable(const origin_circuit_t *origin_circ, - const edge_connection_t *conn, + const entry_connection_t *conn, int must_be_open, uint8_t purpose, int need_uptime, int need_internal, time_t now) @@ -135,10 +135,11 @@ circuit_is_acceptable(const origin_circuit_t *origin_circ, return 0; } } else { /* not general */ - if ((conn->rend_data && !origin_circ->rend_data) || - (!conn->rend_data && origin_circ->rend_data) || - (conn->rend_data && origin_circ->rend_data && - rend_cmp_service_ids(conn->rend_data->onion_address, + const edge_connection_t *edge_conn = ENTRY_TO_EDGE_CONN(conn); + if ((edge_conn->rend_data && !origin_circ->rend_data) || + (!edge_conn->rend_data && origin_circ->rend_data) || + (edge_conn->rend_data && origin_circ->rend_data && + rend_cmp_service_ids(edge_conn->rend_data->onion_address, origin_circ->rend_data->onion_address))) { /* this circ is not for this conn */ return 0; @@ -159,11 +160,11 @@ circuit_is_acceptable(const origin_circuit_t *origin_circ, */ static int circuit_is_better(const origin_circuit_t *oa, const origin_circuit_t *ob, - const edge_connection_t *conn) + const entry_connection_t *conn) { const circuit_t *a = TO_CIRCUIT(oa); const circuit_t *b = TO_CIRCUIT(ob); - const uint8_t purpose = conn->_base.purpose; + const uint8_t purpose = ENTRY_TO_CONN(conn)->purpose; int a_bits, b_bits;

switch (purpose) { @@ -241,7 +242,7 @@ circuit_is_better(const origin_circuit_t *oa, const origin_circuit_t *ob, * closest introduce-purposed circuit that you can find. */ static origin_circuit_t * -circuit_get_best(const edge_connection_t *conn, +circuit_get_best(const entry_connection_t *conn, int must_be_open, uint8_t purpose, int need_uptime, int need_internal) { @@ -544,7 +545,7 @@ circuit_remove_handled_ports(smartlist_t *needed_ports) * Else return 0. */ int -circuit_stream_is_being_handled(edge_connection_t *conn, +circuit_stream_is_being_handled(entry_connection_t *conn, uint16_t port, int min) { circuit_t *circ; @@ -738,8 +739,11 @@ circuit_detach_stream(circuit_t *circ, edge_connection_t *conn) tor_assert(circ); tor_assert(conn);

- conn->cpath_layer = NULL; /* make sure we don't keep a stale pointer */ - conn->may_use_optimistic_data = 0; + if (conn->_base.type == CONN_TYPE_AP) { + entry_connection_t *entry_conn = EDGE_TO_ENTRY_CONN(conn); + entry_conn->may_use_optimistic_data = 0; + } + conn->cpath_layer = NULL; /* don't keep a stale pointer */ conn->on_circuit = NULL;

if (CIRCUIT_IS_ORIGIN(circ)) { @@ -1286,7 +1290,7 @@ circuit_reset_failure_count(int timeout) * Write the found or in-progress or launched circ into *circp. */ static int -circuit_get_open_circ_or_launch(edge_connection_t *conn, +circuit_get_open_circ_or_launch(entry_connection_t *conn, uint8_t desired_circuit_purpose, origin_circuit_t **circp) { @@ -1298,11 +1302,11 @@ circuit_get_open_circ_or_launch(edge_connection_t *conn,

tor_assert(conn); tor_assert(circp); - tor_assert(conn->_base.state == AP_CONN_STATE_CIRCUIT_WAIT); + tor_assert(ENTRY_TO_CONN(conn)->state == AP_CONN_STATE_CIRCUIT_WAIT); check_exit_policy = conn->socks_request->command == SOCKS_COMMAND_CONNECT && !conn->use_begindir && - !connection_edge_is_rendezvous_stream(conn); + !connection_edge_is_rendezvous_stream(ENTRY_TO_EDGE_CONN(conn)); want_onehop = conn->want_onehop;

need_uptime = !conn->want_onehop && !conn->use_begindir && @@ -1410,19 +1414,20 @@ circuit_get_open_circ_or_launch(edge_connection_t *conn,

if (desired_circuit_purpose == CIRCUIT_PURPOSE_C_INTRODUCE_ACK_WAIT) { /* need to pick an intro point */ - tor_assert(conn->rend_data); - extend_info = rend_client_get_random_intro(conn->rend_data); + rend_data_t *rend_data = ENTRY_TO_EDGE_CONN(conn)->rend_data; + tor_assert(rend_data); + extend_info = rend_client_get_random_intro(rend_data); if (!extend_info) { log_info(LD_REND, "No intro points for '%s': re-fetching service descriptor.", - safe_str_client(conn->rend_data->onion_address)); - rend_client_refetch_v2_renddesc(conn->rend_data); - conn->_base.state = AP_CONN_STATE_RENDDESC_WAIT; + safe_str_client(rend_data->onion_address)); + rend_client_refetch_v2_renddesc(rend_data); + ENTRY_TO_CONN(conn)->state = AP_CONN_STATE_RENDDESC_WAIT; return 0; } log_info(LD_REND,"Chose %s as intro point for '%s'.", extend_info_describe(extend_info), - safe_str_client(conn->rend_data->onion_address)); + safe_str_client(rend_data->onion_address)); }

/* If we have specified a particular exit node for our @@ -1511,7 +1516,7 @@ circuit_get_open_circ_or_launch(edge_connection_t *conn, rep_hist_note_used_internal(time(NULL), need_uptime, 1); if (circ) { /* write the service_id into circ */ - circ->rend_data = rend_data_dup(conn->rend_data); + circ->rend_data = rend_data_dup(ENTRY_TO_EDGE_CONN(conn)->rend_data); if (circ->_base.purpose == CIRCUIT_PURPOSE_C_ESTABLISH_REND && circ->_base.state == CIRCUIT_STATE_OPEN) rend_client_rendcirc_has_opened(circ); @@ -1569,7 +1574,7 @@ optimistic_data_enabled(void) * hop in circ's cpath if <b>cpath</b> is NULL. */ static void -link_apconn_to_circ(edge_connection_t *apconn, origin_circuit_t *circ, +link_apconn_to_circ(entry_connection_t *apconn, origin_circuit_t *circ, crypt_path_t *cpath) { const node_t *exitnode; @@ -1578,29 +1583,29 @@ link_apconn_to_circ(edge_connection_t *apconn, origin_circuit_t *circ, log_debug(LD_APP|LD_CIRC, "attaching new conn to circ. n_circ_id %d.", circ->_base.n_circ_id); /* reset it, so we can measure circ timeouts */ - apconn->_base.timestamp_lastread = time(NULL); - apconn->next_stream = circ->p_streams; - apconn->on_circuit = TO_CIRCUIT(circ); + ENTRY_TO_CONN(apconn)->timestamp_lastread = time(NULL); + ENTRY_TO_EDGE_CONN(apconn)->next_stream = circ->p_streams; + ENTRY_TO_EDGE_CONN(apconn)->on_circuit = TO_CIRCUIT(circ); /* assert_connection_ok(conn, time(NULL)); */ - circ->p_streams = apconn; + circ->p_streams = ENTRY_TO_EDGE_CONN(apconn);

if (cpath) { /* we were given one; use it */ tor_assert(cpath_is_on_circuit(circ, cpath)); - apconn->cpath_layer = cpath; - } else { /* use the last hop in the circuit */ + } else { + /* use the last hop in the circuit */ tor_assert(circ->cpath); tor_assert(circ->cpath->prev); tor_assert(circ->cpath->prev->state == CPATH_STATE_OPEN); - apconn->cpath_layer = circ->cpath->prev; + cpath = circ->cpath->prev; } + ENTRY_TO_EDGE_CONN(apconn)->cpath_layer = cpath;

circ->isolation_any_streams_attached = 1; connection_edge_update_circuit_isolation(apconn, circ, 0);

/* See if we can use optimistic data on this circuit */ - if (apconn->cpath_layer->extend_info && - (exitnode = node_get_by_id( - apconn->cpath_layer->extend_info->identity_digest)) && + if (cpath->extend_info && + (exitnode = node_get_by_id(cpath->extend_info->identity_digest)) && exitnode->rs) { /* Okay; we know what exit node this is. */ if (optimistic_data_enabled() && @@ -1642,7 +1647,7 @@ hostname_in_track_host_exits(const or_options_t *options, const char *address) * <b>conn</b>'s destination. */ static void -consider_recording_trackhost(const edge_connection_t *conn, +consider_recording_trackhost(const entry_connection_t *conn, const origin_circuit_t *circ) { const or_options_t *options = get_options(); @@ -1680,18 +1685,19 @@ consider_recording_trackhost(const edge_connection_t *conn, * indicated by <b>cpath</b>, or from the last hop in circ's cpath if * <b>cpath</b> is NULL. */ int -connection_ap_handshake_attach_chosen_circuit(edge_connection_t *conn, +connection_ap_handshake_attach_chosen_circuit(entry_connection_t *conn, origin_circuit_t *circ, crypt_path_t *cpath) { + connection_t *base_conn = ENTRY_TO_CONN(conn); tor_assert(conn); - tor_assert(conn->_base.state == AP_CONN_STATE_CIRCUIT_WAIT || - conn->_base.state == AP_CONN_STATE_CONTROLLER_WAIT); + tor_assert(base_conn->state == AP_CONN_STATE_CIRCUIT_WAIT || + base_conn->state == AP_CONN_STATE_CONTROLLER_WAIT); tor_assert(conn->socks_request); tor_assert(circ); tor_assert(circ->_base.state == CIRCUIT_STATE_OPEN);

- conn->_base.state = AP_CONN_STATE_CIRCUIT_WAIT; + base_conn->state = AP_CONN_STATE_CIRCUIT_WAIT;

if (!circ->_base.timestamp_dirty) circ->_base.timestamp_dirty = time(NULL); @@ -1721,21 +1727,22 @@ connection_ap_handshake_attach_chosen_circuit(edge_connection_t *conn, /* XXXX this function should mark for close whenever it returns -1; * its callers shouldn't have to worry about that. */ int -connection_ap_handshake_attach_circuit(edge_connection_t *conn) +connection_ap_handshake_attach_circuit(entry_connection_t *conn) { + connection_t *base_conn = ENTRY_TO_CONN(conn); int retval; int conn_age; int want_onehop;

tor_assert(conn); - tor_assert(conn->_base.state == AP_CONN_STATE_CIRCUIT_WAIT); + tor_assert(base_conn->state == AP_CONN_STATE_CIRCUIT_WAIT); tor_assert(conn->socks_request); want_onehop = conn->want_onehop;

- conn_age = (int)(time(NULL) - conn->_base.timestamp_created); + conn_age = (int)(time(NULL) - base_conn->timestamp_created);

if (conn_age >= get_options()->SocksTimeout) { - int severity = (tor_addr_is_null(&conn->_base.addr) && !conn->_base.port) ? + int severity = (tor_addr_is_null(&base_conn->addr) && !base_conn->port) ? LOG_INFO : LOG_NOTICE; log_fn(severity, LD_APP, "Tried for %d seconds to get a connection to %s:%d. Giving up.", @@ -1744,7 +1751,8 @@ connection_ap_handshake_attach_circuit(edge_connection_t *conn) return -1; }

- if (!connection_edge_is_rendezvous_stream(conn)) { /* we're a general conn */ + if (!connection_edge_is_rendezvous_stream(ENTRY_TO_EDGE_CONN(conn))) { + /* we're a general conn */ origin_circuit_t *circ=NULL;

if (conn->chosen_exit_name) { @@ -1799,7 +1807,7 @@ connection_ap_handshake_attach_circuit(edge_connection_t *conn) } else { /* we're a rendezvous conn */ origin_circuit_t *rendcirc=NULL, *introcirc=NULL;

- tor_assert(!conn->cpath_layer); + tor_assert(!ENTRY_TO_EDGE_CONN(conn)->cpath_layer);

/* start by finding a rendezvous circuit for us */

@@ -1855,8 +1863,9 @@ connection_ap_handshake_attach_circuit(edge_connection_t *conn) !c->marked_for_close && CIRCUIT_IS_ORIGIN(c)) { origin_circuit_t *oc = TO_ORIGIN_CIRCUIT(c); if (oc->rend_data && - !rend_cmp_service_ids(conn->rend_data->onion_address, - oc->rend_data->onion_address)) { + !rend_cmp_service_ids( + ENTRY_TO_EDGE_CONN(conn)->rend_data->onion_address, + oc->rend_data->onion_address)) { log_info(LD_REND|LD_CIRC, "Closing introduction circuit that we " "built in parallel."); circuit_mark_for_close(c, END_CIRC_REASON_TIMEOUT); diff --git a/src/or/circuituse.h b/src/or/circuituse.h index ab7f6a2..9867fd8 100644 --- a/src/or/circuituse.h +++ b/src/or/circuituse.h @@ -14,7 +14,7 @@

void circuit_expire_building(void); void circuit_remove_handled_ports(smartlist_t *needed_ports); -int circuit_stream_is_being_handled(edge_connection_t *conn, uint16_t port, +int circuit_stream_is_being_handled(entry_connection_t *conn, uint16_t port, int min); #if 0 int circuit_conforms_to_options(const origin_circuit_t *circ, @@ -45,10 +45,10 @@ origin_circuit_t *circuit_launch_by_extend_info(uint8_t purpose, int flags); origin_circuit_t *circuit_launch(uint8_t purpose, int flags); void circuit_reset_failure_count(int timeout); -int connection_ap_handshake_attach_chosen_circuit(edge_connection_t *conn, +int connection_ap_handshake_attach_chosen_circuit(entry_connection_t *conn, origin_circuit_t *circ, crypt_path_t *cpath); -int connection_ap_handshake_attach_circuit(edge_connection_t *conn); +int connection_ap_handshake_attach_circuit(entry_connection_t *conn);

int hostname_in_track_host_exits(const or_options_t *options, const char *address); diff --git a/src/or/connection.c b/src/or/connection.c index a799627..012a3fb 100644 --- a/src/or/connection.c +++ b/src/or/connection.c @@ -251,7 +251,7 @@ entry_connection_new(int type, int socket_family) entry_connection_t *entry_conn = tor_malloc_zero(sizeof(entry_connection_t)); tor_assert(type == CONN_TYPE_AP); connection_init(time(NULL), ENTRY_TO_CONN(entry_conn), type, socket_family); - entry_conn->_edge.socks_request = socks_request_new(); + entry_conn->socks_request = socks_request_new(); return entry_conn; }

@@ -346,10 +346,10 @@ connection_init(time_t now, connection_t *conn, int type, int socket_family) conn->magic = OR_CONNECTION_MAGIC; break; case CONN_TYPE_EXIT: - conn->magic = ENTRY_CONNECTION_MAGIC; + conn->magic = EDGE_CONNECTION_MAGIC; break; case CONN_TYPE_AP: - conn->magic = EDGE_CONNECTION_MAGIC; + conn->magic = ENTRY_CONNECTION_MAGIC; break; case CONN_TYPE_DIR: conn->magic = DIR_CONNECTION_MAGIC; @@ -483,19 +483,21 @@ _connection_free(connection_t *conn) smartlist_free(or_conn->active_circuit_pqueue); tor_free(or_conn->nickname); } - if (CONN_IS_EDGE(conn)) { - edge_connection_t *edge_conn = TO_EDGE_CONN(conn); - tor_free(edge_conn->chosen_exit_name); - tor_free(edge_conn->original_dest_address); - if (edge_conn->socks_request) - socks_request_free(edge_conn->socks_request); - if (edge_conn->pending_optimistic_data) { - generic_buffer_free(edge_conn->pending_optimistic_data); + if (conn->type == CONN_TYPE_AP) { + entry_connection_t *entry_conn = TO_ENTRY_CONN(conn); + tor_free(entry_conn->chosen_exit_name); + tor_free(entry_conn->original_dest_address); + if (entry_conn->socks_request) + socks_request_free(entry_conn->socks_request); + if (entry_conn->pending_optimistic_data) { + generic_buffer_free(entry_conn->pending_optimistic_data); } - if (edge_conn->sending_optimistic_data) { - generic_buffer_free(edge_conn->sending_optimistic_data); + if (entry_conn->sending_optimistic_data) { + generic_buffer_free(entry_conn->sending_optimistic_data); } - rend_data_free(edge_conn->rend_data); + } + if (CONN_IS_EDGE(conn)) { + rend_data_free(TO_EDGE_CONN(conn)->rend_data); } if (conn->type == CONN_TYPE_CONTROL) { control_connection_t *control_conn = TO_CONTROL_CONN(conn); @@ -639,7 +641,7 @@ connection_about_to_close_connection(connection_t *conn) connection_or_about_to_close(TO_OR_CONN(conn)); break; case CONN_TYPE_AP: - connection_ap_about_to_close(TO_EDGE_CONN(conn)); + connection_ap_about_to_close(TO_ENTRY_CONN(conn)); break; case CONN_TYPE_EXIT: connection_exit_about_to_close(TO_EDGE_CONN(conn)); @@ -1266,19 +1268,19 @@ connection_init_accepted_conn(connection_t *conn, control_event_or_conn_status(TO_OR_CONN(conn), OR_CONN_EVENT_NEW, 0); return connection_tls_start_handshake(TO_OR_CONN(conn), 1); case CONN_TYPE_AP: - TO_EDGE_CONN(conn)->isolation_flags = listener->isolation_flags; - TO_EDGE_CONN(conn)->session_group = listener->session_group; - TO_EDGE_CONN(conn)->nym_epoch = get_signewnym_epoch(); + TO_ENTRY_CONN(conn)->isolation_flags = listener->isolation_flags; + TO_ENTRY_CONN(conn)->session_group = listener->session_group; + TO_ENTRY_CONN(conn)->nym_epoch = get_signewnym_epoch(); switch (TO_CONN(listener)->type) { case CONN_TYPE_AP_LISTENER: conn->state = AP_CONN_STATE_SOCKS_WAIT; break; case CONN_TYPE_AP_TRANS_LISTENER: - TO_EDGE_CONN(conn)->is_transparent_ap = 1; + TO_ENTRY_CONN(conn)->is_transparent_ap = 1; conn->state = AP_CONN_STATE_CIRCUIT_WAIT; - return connection_ap_process_transparent(TO_EDGE_CONN(conn)); + return connection_ap_process_transparent(TO_ENTRY_CONN(conn)); case CONN_TYPE_AP_NATD_LISTENER: - TO_EDGE_CONN(conn)->is_transparent_ap = 1; + TO_ENTRY_CONN(conn)->is_transparent_ap = 1; conn->state = AP_CONN_STATE_NATD_WAIT; break; } @@ -2635,8 +2637,10 @@ connection_handle_read_impl(connection_t *conn) if (CONN_IS_EDGE(conn)) { edge_connection_t *edge_conn = TO_EDGE_CONN(conn); connection_edge_end_errno(edge_conn); - if (edge_conn->socks_request) /* broken, don't send a socks reply back */ - edge_conn->socks_request->has_finished = 1; + if (conn->type == CONN_TYPE_AP && TO_ENTRY_CONN(conn)->socks_request) { + /* broken, don't send a socks reply back */ + TO_ENTRY_CONN(conn)->socks_request->has_finished = 1; + } } connection_close_immediate(conn); /* Don't flush; connection is dead. */ connection_mark_for_close(conn); @@ -2978,8 +2982,10 @@ connection_handle_event_cb(struct bufferevent *bufev, short event, void *arg) edge_connection_t *edge_conn = TO_EDGE_CONN(conn); if (!edge_conn->edge_has_sent_end) connection_edge_end_errno(edge_conn); - if (edge_conn->socks_request) /* broken, don't send a socks reply back */ - edge_conn->socks_request->has_finished = 1; + if (conn->type == CONN_TYPE_AP && TO_ENTRY_CONN(conn)->socks_request) { + /* broken, don't send a socks reply back */ + TO_ENTRY_CONN(conn)->socks_request->has_finished = 1; + } } connection_close_immediate(conn); /* Connection is dead. */ if (!conn->marked_for_close) @@ -3509,8 +3515,7 @@ connection_get_by_type_state_rendquery(int type, int state, type == CONN_TYPE_AP || type == CONN_TYPE_EXIT); tor_assert(rendquery);

- SMARTLIST_FOREACH(conns, connection_t *, conn, - { + SMARTLIST_FOREACH_BEGIN(conns, connection_t *, conn) { if (conn->type == type && !conn->marked_for_close && (!state || state == conn->state)) { @@ -3525,7 +3530,7 @@ connection_get_by_type_state_rendquery(int type, int state, TO_EDGE_CONN(conn)->rend_data->onion_address)) return conn; } - }); + } SMARTLIST_FOREACH_END(conn); return NULL; }

@@ -4016,21 +4021,18 @@ assert_connection_ok(connection_t *conn, time_t now) }

if (CONN_IS_EDGE(conn)) { - edge_connection_t *edge_conn = TO_EDGE_CONN(conn); - if (edge_conn->chosen_exit_optional || edge_conn->chosen_exit_retries) { - tor_assert(conn->type == CONN_TYPE_AP); - tor_assert(edge_conn->chosen_exit_name); - } - /* XXX unchecked: package window, deliver window. */ if (conn->type == CONN_TYPE_AP) { + entry_connection_t *entry_conn = TO_ENTRY_CONN(conn); + if (entry_conn->chosen_exit_optional || entry_conn->chosen_exit_retries) + tor_assert(entry_conn->chosen_exit_name);

- tor_assert(edge_conn->socks_request); + tor_assert(entry_conn->socks_request); if (conn->state == AP_CONN_STATE_OPEN) { - tor_assert(edge_conn->socks_request->has_finished); + tor_assert(entry_conn->socks_request->has_finished); if (!conn->marked_for_close) { - tor_assert(edge_conn->cpath_layer); - assert_cpath_layer_ok(edge_conn->cpath_layer); + tor_assert(ENTRY_TO_EDGE_CONN(entry_conn)->cpath_layer); + assert_cpath_layer_ok(ENTRY_TO_EDGE_CONN(entry_conn)->cpath_layer); } } } @@ -4063,7 +4065,7 @@ assert_connection_ok(connection_t *conn, time_t now) case CONN_TYPE_AP: tor_assert(conn->state >= _AP_CONN_STATE_MIN); tor_assert(conn->state <= _AP_CONN_STATE_MAX); - tor_assert(TO_EDGE_CONN(conn)->socks_request); + tor_assert(TO_ENTRY_CONN(conn)->socks_request); break; case CONN_TYPE_DIR: tor_assert(conn->state >= _DIR_CONN_STATE_MIN); diff --git a/src/or/connection_edge.c b/src/or/connection_edge.c index 5c0e43a..df4acc4 100644 --- a/src/or/connection_edge.c +++ b/src/or/connection_edge.c @@ -51,28 +51,29 @@ #define SOCKS4_GRANTED 90 #define SOCKS4_REJECT 91

-static int connection_ap_handshake_process_socks(edge_connection_t *conn); -static int connection_ap_process_natd(edge_connection_t *conn); +static int connection_ap_handshake_process_socks(entry_connection_t *conn); +static int connection_ap_process_natd(entry_connection_t *conn); static int connection_exit_connect_dir(edge_connection_t *exitconn); static int address_is_in_virtual_range(const char *addr); -static int consider_plaintext_ports(edge_connection_t *conn, uint16_t port); +static int consider_plaintext_ports(entry_connection_t *conn, uint16_t port); static void clear_trackexithost_mappings(const char *exitname); -static int connection_ap_supports_optimistic_data(const edge_connection_t *); +static int connection_ap_supports_optimistic_data(const entry_connection_t *);

/** An AP stream has failed/finished. If it hasn't already sent back * a socks reply, send one now (based on endreason). Also set * has_sent_end to 1, and mark the conn. */ void -_connection_mark_unattached_ap(edge_connection_t *conn, int endreason, +_connection_mark_unattached_ap(entry_connection_t *conn, int endreason, int line, const char *file) { - tor_assert(conn->_base.type == CONN_TYPE_AP); - conn->edge_has_sent_end = 1; /* no circ yet */ + connection_t *base_conn = ENTRY_TO_CONN(conn); + tor_assert(base_conn->type == CONN_TYPE_AP); + ENTRY_TO_EDGE_CONN(conn)->edge_has_sent_end = 1; /* no circ yet */

- if (conn->_base.marked_for_close) { + if (base_conn->marked_for_close) { /* This call will warn as appropriate. */ - _connection_mark_for_close(TO_CONN(conn), line, file); + _connection_mark_for_close(base_conn, line, file); return; }

@@ -92,9 +93,9 @@ _connection_mark_unattached_ap(edge_connection_t *conn, int endreason, conn->socks_request->has_finished = 1; }

- _connection_mark_and_flush(TO_CONN(conn), line, file); + _connection_mark_and_flush(base_conn, line, file);

- conn->end_reason = endreason; + ENTRY_TO_EDGE_CONN(conn)->end_reason = endreason; }

/** There was an EOF. Send an end and mark the connection for close. @@ -112,8 +113,11 @@ connection_edge_reached_eof(edge_connection_t *conn) /* only mark it if not already marked. it's possible to * get the 'end' right around when the client hangs up on us. */ connection_edge_end(conn, END_STREAM_REASON_DONE); - if (conn->socks_request) /* eof, so don't send a socks reply back */ - conn->socks_request->has_finished = 1; + if (conn->_base.type == CONN_TYPE_AP) { + /* eof, so don't send a socks reply back */ + if (EDGE_TO_ENTRY_CONN(conn)->socks_request) + EDGE_TO_ENTRY_CONN(conn)->socks_request->has_finished = 1; + } connection_mark_for_close(TO_CONN(conn)); } return 0; @@ -136,13 +140,13 @@ connection_edge_process_inbuf(edge_connection_t *conn, int package_partial)

switch (conn->_base.state) { case AP_CONN_STATE_SOCKS_WAIT: - if (connection_ap_handshake_process_socks(conn) < 0) { + if (connection_ap_handshake_process_socks(EDGE_TO_ENTRY_CONN(conn)) < 0) { /* already marked */ return -1; } return 0; case AP_CONN_STATE_NATD_WAIT: - if (connection_ap_process_natd(conn) < 0) { + if (connection_ap_process_natd(EDGE_TO_ENTRY_CONN(conn)) < 0) { /* already marked */ return -1; } @@ -156,7 +160,7 @@ connection_edge_process_inbuf(edge_connection_t *conn, int package_partial) } return 0; case AP_CONN_STATE_CONNECT_WAIT: - if (connection_ap_supports_optimistic_data(conn)) { + if (connection_ap_supports_optimistic_data(EDGE_TO_ENTRY_CONN(conn))) { log_info(LD_EDGE, "data from edge while in '%s' state. Sending it anyway. " "package_partial=%d, buflen=%ld", @@ -198,9 +202,10 @@ connection_edge_destroy(circid_t circ_id, edge_connection_t *conn) log_info(LD_EDGE, "CircID %d: At an edge. Marking connection for close.", circ_id); if (conn->_base.type == CONN_TYPE_AP) { - connection_mark_unattached_ap(conn, END_STREAM_REASON_DESTROY); + entry_connection_t *entry_conn = EDGE_TO_ENTRY_CONN(conn); + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_DESTROY); control_event_stream_bandwidth(conn); - control_event_stream_status(conn, STREAM_EVENT_CLOSED, + control_event_stream_status(entry_conn, STREAM_EVENT_CLOSED, END_STREAM_REASON_DESTROY); conn->end_reason |= END_STREAM_REASON_FLAG_ALREADY_SENT_CLOSED; } else { @@ -440,12 +445,13 @@ connection_edge_about_to_close(edge_connection_t *edge_conn) /* Called when we're about to finally unlink and free an AP (client) * connection: perform necessary accounting and cleanup */ void -connection_ap_about_to_close(edge_connection_t *edge_conn) +connection_ap_about_to_close(entry_connection_t *entry_conn) { circuit_t *circ; - connection_t *conn = TO_CONN(edge_conn); + edge_connection_t *edge_conn = ENTRY_TO_EDGE_CONN(entry_conn); + connection_t *conn = ENTRY_TO_CONN(entry_conn);

- if (edge_conn->socks_request->has_finished == 0) { + if (entry_conn->socks_request->has_finished == 0) { /* since conn gets removed right after this function finishes, * there's no point trying to send back a reply at this point. */ log_warn(LD_BUG,"Closing stream (marked at %s:%d) without sending" @@ -457,14 +463,14 @@ connection_ap_about_to_close(edge_connection_t *edge_conn) " set end_reason.", conn->marked_for_close_file, conn->marked_for_close); } - if (edge_conn->dns_server_request) { + if (entry_conn->dns_server_request) { log_warn(LD_BUG,"Closing stream (marked at %s:%d) without having" " replied to DNS request.", conn->marked_for_close_file, conn->marked_for_close); - dnsserv_reject_request(edge_conn); + dnsserv_reject_request(entry_conn); } control_event_stream_bandwidth(edge_conn); - control_event_stream_status(edge_conn, STREAM_EVENT_CLOSED, + control_event_stream_status(entry_conn, STREAM_EVENT_CLOSED, edge_conn->end_reason); circ = circuit_get_by_edge_conn(edge_conn); if (circ) @@ -495,7 +501,7 @@ connection_exit_about_to_close(edge_connection_t *edge_conn) * two tries, and 15 seconds for each retry after * that. Hopefully this will improve the expected user experience. */ static int -compute_retry_timeout(edge_connection_t *conn) +compute_retry_timeout(entry_connection_t *conn) { int timeout = get_options()->CircuitStreamTimeout; if (timeout) /* if our config options override the default, use them */ @@ -518,6 +524,7 @@ void connection_ap_expire_beginning(void) { edge_connection_t *conn; + entry_connection_t *entry_conn; circuit_t *circ; time_t now = time(NULL); const or_options_t *options = get_options(); @@ -526,33 +533,34 @@ connection_ap_expire_beginning(void) int seconds_idle, seconds_since_born; smartlist_t *conns = get_connection_array();

- SMARTLIST_FOREACH_BEGIN(conns, connection_t *, c) { - if (c->type != CONN_TYPE_AP || c->marked_for_close) + SMARTLIST_FOREACH_BEGIN(conns, connection_t *, base_conn) { + if (base_conn->type != CONN_TYPE_AP || base_conn->marked_for_close) continue; - conn = TO_EDGE_CONN(c); + entry_conn = TO_ENTRY_CONN(base_conn); + conn = ENTRY_TO_EDGE_CONN(entry_conn); /* if it's an internal linked connection, don't yell its status. */ - severity = (tor_addr_is_null(&conn->_base.addr) && !conn->_base.port) + severity = (tor_addr_is_null(&base_conn->addr) && !base_conn->port) ? LOG_INFO : LOG_NOTICE; - seconds_idle = (int)( now - conn->_base.timestamp_lastread ); - seconds_since_born = (int)( now - conn->_base.timestamp_created ); + seconds_idle = (int)( now - base_conn->timestamp_lastread ); + seconds_since_born = (int)( now - base_conn->timestamp_created );

- if (conn->_base.state == AP_CONN_STATE_OPEN) + if (base_conn->state == AP_CONN_STATE_OPEN) continue;

/* We already consider SocksTimeout in * connection_ap_handshake_attach_circuit(), but we need to consider * it here too because controllers that put streams in controller_wait * state never ask Tor to attach the circuit. */ - if (AP_CONN_STATE_IS_UNATTACHED(conn->_base.state)) { + if (AP_CONN_STATE_IS_UNATTACHED(base_conn->state)) { if (seconds_since_born >= options->SocksTimeout) { log_fn(severity, LD_APP, "Tried for %d seconds to get a connection to %s:%d. " "Giving up. (%s)", seconds_since_born, - safe_str_client(conn->socks_request->address), - conn->socks_request->port, - conn_state_to_string(CONN_TYPE_AP, conn->_base.state)); - connection_mark_unattached_ap(conn, END_STREAM_REASON_TIMEOUT); + safe_str_client(entry_conn->socks_request->address), + entry_conn->socks_request->port, + conn_state_to_string(CONN_TYPE_AP, base_conn->state)); + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_TIMEOUT); } continue; } @@ -560,14 +568,14 @@ connection_ap_expire_beginning(void) /* We're in state connect_wait or resolve_wait now -- waiting for a * reply to our relay cell. See if we want to retry/give up. */

- cutoff = compute_retry_timeout(conn); + cutoff = compute_retry_timeout(entry_conn); if (seconds_idle < cutoff) continue; circ = circuit_get_by_edge_conn(conn); if (!circ) { /* it's vanished? */ log_info(LD_APP,"Conn is waiting (address %s), but lost its circ.", - safe_str_client(conn->socks_request->address)); - connection_mark_unattached_ap(conn, END_STREAM_REASON_TIMEOUT); + safe_str_client(entry_conn->socks_request->address)); + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_TIMEOUT); continue; } if (circ->purpose == CIRCUIT_PURPOSE_C_REND_JOINED) { @@ -576,9 +584,9 @@ connection_ap_expire_beginning(void) "Rend stream is %d seconds late. Giving up on address" " '%s.onion'.", seconds_idle, - safe_str_client(conn->socks_request->address)); + safe_str_client(entry_conn->socks_request->address)); connection_edge_end(conn, END_STREAM_REASON_TIMEOUT); - connection_mark_unattached_ap(conn, END_STREAM_REASON_TIMEOUT); + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_TIMEOUT); } continue; } @@ -587,9 +595,10 @@ connection_ap_expire_beginning(void) "We tried for %d seconds to connect to '%s' using exit %s." " Retrying on a new circuit.", seconds_idle, - safe_str_client(conn->socks_request->address), + safe_str_client(entry_conn->socks_request->address), conn->cpath_layer ? - extend_info_describe(conn->cpath_layer->extend_info): "*unnamed*"); + extend_info_describe(conn->cpath_layer->extend_info): + "*unnamed*"); /* send an end down the circuit */ connection_edge_end(conn, END_STREAM_REASON_TIMEOUT); /* un-mark it as ending, since we're going to reuse it */ @@ -603,15 +612,15 @@ connection_ap_expire_beginning(void) circ->timestamp_dirty -= options->MaxCircuitDirtiness; /* give our stream another 'cutoff' seconds to try */ conn->_base.timestamp_lastread += cutoff; - if (conn->num_socks_retries < 250) /* avoid overflow */ - conn->num_socks_retries++; + if (entry_conn->num_socks_retries < 250) /* avoid overflow */ + entry_conn->num_socks_retries++; /* move it back into 'pending' state, and try to attach. */ - if (connection_ap_detach_retriable(conn, TO_ORIGIN_CIRCUIT(circ), + if (connection_ap_detach_retriable(entry_conn, TO_ORIGIN_CIRCUIT(circ), END_STREAM_REASON_TIMEOUT)<0) { - if (!conn->_base.marked_for_close) - connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH); + if (!base_conn->marked_for_close) + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_CANT_ATTACH); } - } SMARTLIST_FOREACH_END(conn); + } SMARTLIST_FOREACH_END(base_conn); }

/** Tell any AP streams that are waiting for a new circuit to try again, @@ -620,7 +629,7 @@ connection_ap_expire_beginning(void) void connection_ap_attach_pending(void) { - edge_connection_t *edge_conn; + entry_connection_t *entry_conn; smartlist_t *conns = get_connection_array(); SMARTLIST_FOREACH(conns, connection_t *, conn, { @@ -628,10 +637,10 @@ connection_ap_attach_pending(void) conn->type != CONN_TYPE_AP || conn->state != AP_CONN_STATE_CIRCUIT_WAIT) continue; - edge_conn = TO_EDGE_CONN(conn); - if (connection_ap_handshake_attach_circuit(edge_conn) < 0) { - if (!edge_conn->_base.marked_for_close) - connection_mark_unattached_ap(edge_conn, + entry_conn = TO_ENTRY_CONN(conn); + if (connection_ap_handshake_attach_circuit(entry_conn) < 0) { + if (!conn->marked_for_close) + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_CANT_ATTACH); } }); @@ -646,7 +655,7 @@ void connection_ap_fail_onehop(const char *failed_digest, cpath_build_state_t *build_state) { - edge_connection_t *edge_conn; + entry_connection_t *entry_conn; char digest[DIGEST_LEN]; smartlist_t *conns = get_connection_array(); SMARTLIST_FOREACH_BEGIN(conns, connection_t *, conn) { @@ -654,27 +663,27 @@ connection_ap_fail_onehop(const char *failed_digest, conn->type != CONN_TYPE_AP || conn->state != AP_CONN_STATE_CIRCUIT_WAIT) continue; - edge_conn = TO_EDGE_CONN(conn); - if (!edge_conn->want_onehop) + entry_conn = TO_ENTRY_CONN(conn); + if (!entry_conn->want_onehop) continue; - if (hexdigest_to_digest(edge_conn->chosen_exit_name, digest) < 0 || + if (hexdigest_to_digest(entry_conn->chosen_exit_name, digest) < 0 || tor_memneq(digest, failed_digest, DIGEST_LEN)) continue; if (tor_digest_is_zero(digest)) { /* we don't know the digest; have to compare addr:port */ tor_addr_t addr; if (!build_state || !build_state->chosen_exit || - !edge_conn->socks_request || !edge_conn->socks_request->address) + !entry_conn->socks_request || !entry_conn->socks_request->address) continue; - if (tor_addr_from_str(&addr, edge_conn->socks_request->address)<0 || + if (tor_addr_from_str(&addr, entry_conn->socks_request->address)<0 || !tor_addr_eq(&build_state->chosen_exit->addr, &addr) || - build_state->chosen_exit->port != edge_conn->socks_request->port) + build_state->chosen_exit->port != entry_conn->socks_request->port) continue; } log_info(LD_APP, "Closing one-hop stream to '%s/%s' because the OR conn " - "just failed.", edge_conn->chosen_exit_name, - edge_conn->socks_request->address); - connection_mark_unattached_ap(edge_conn, END_STREAM_REASON_TIMEOUT); + "just failed.", entry_conn->chosen_exit_name, + entry_conn->socks_request->address); + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_TIMEOUT); } SMARTLIST_FOREACH_END(conn); }

@@ -685,7 +694,7 @@ connection_ap_fail_onehop(const char *failed_digest, void circuit_discard_optional_exit_enclaves(extend_info_t *info) { - edge_connection_t *edge_conn; + entry_connection_t *entry_conn; const node_t *r1, *r2;

smartlist_t *conns = get_connection_array(); @@ -694,32 +703,32 @@ circuit_discard_optional_exit_enclaves(extend_info_t *info) conn->type != CONN_TYPE_AP || conn->state != AP_CONN_STATE_CIRCUIT_WAIT) continue; - edge_conn = TO_EDGE_CONN(conn); - if (!edge_conn->chosen_exit_optional && - !edge_conn->chosen_exit_retries) + entry_conn = TO_ENTRY_CONN(conn); + if (!entry_conn->chosen_exit_optional && + !entry_conn->chosen_exit_retries) continue; - r1 = node_get_by_nickname(edge_conn->chosen_exit_name, 0); + r1 = node_get_by_nickname(entry_conn->chosen_exit_name, 0); r2 = node_get_by_id(info->identity_digest); if (!r1 || !r2 || r1 != r2) continue; - tor_assert(edge_conn->socks_request); - if (edge_conn->chosen_exit_optional) { + tor_assert(entry_conn->socks_request); + if (entry_conn->chosen_exit_optional) { log_info(LD_APP, "Giving up on enclave exit '%s' for destination %s.", - safe_str_client(edge_conn->chosen_exit_name), - escaped_safe_str_client(edge_conn->socks_request->address)); - edge_conn->chosen_exit_optional = 0; - tor_free(edge_conn->chosen_exit_name); /* clears it */ + safe_str_client(entry_conn->chosen_exit_name), + escaped_safe_str_client(entry_conn->socks_request->address)); + entry_conn->chosen_exit_optional = 0; + tor_free(entry_conn->chosen_exit_name); /* clears it */ /* if this port is dangerous, warn or reject it now that we don't * think it'll be using an enclave. */ - consider_plaintext_ports(edge_conn, edge_conn->socks_request->port); + consider_plaintext_ports(entry_conn, entry_conn->socks_request->port); } - if (edge_conn->chosen_exit_retries) { - if (--edge_conn->chosen_exit_retries == 0) { /* give up! */ - clear_trackexithost_mappings(edge_conn->chosen_exit_name); - tor_free(edge_conn->chosen_exit_name); /* clears it */ + if (entry_conn->chosen_exit_retries) { + if (--entry_conn->chosen_exit_retries == 0) { /* give up! */ + clear_trackexithost_mappings(entry_conn->chosen_exit_name); + tor_free(entry_conn->chosen_exit_name); /* clears it */ /* if this port is dangerous, warn or reject it now that we don't * think it'll be using an enclave. */ - consider_plaintext_ports(edge_conn, edge_conn->socks_request->port); + consider_plaintext_ports(entry_conn, entry_conn->socks_request->port); } } } SMARTLIST_FOREACH_END(conn); @@ -733,11 +742,11 @@ circuit_discard_optional_exit_enclaves(extend_info_t *info) * Returns -1 on err, 1 on success, 0 on not-yet-sure. */ int -connection_ap_detach_retriable(edge_connection_t *conn, origin_circuit_t *circ, +connection_ap_detach_retriable(entry_connection_t *conn, origin_circuit_t *circ, int reason) { control_event_stream_status(conn, STREAM_EVENT_FAILED_RETRIABLE, reason); - conn->_base.timestamp_lastread = time(NULL); + ENTRY_TO_CONN(conn)->timestamp_lastread = time(NULL);

if (conn->pending_optimistic_data) { generic_buffer_set_to_copy(&conn->sending_optimistic_data, @@ -747,12 +756,12 @@ connection_ap_detach_retriable(edge_connection_t *conn, origin_circuit_t *circ, if (!get_options()->LeaveStreamsUnattached || conn->use_begindir) { /* If we're attaching streams ourself, or if this connection is * a tunneled directory connection, then just attach it. */ - conn->_base.state = AP_CONN_STATE_CIRCUIT_WAIT; - circuit_detach_stream(TO_CIRCUIT(circ),conn); + ENTRY_TO_CONN(conn)->state = AP_CONN_STATE_CIRCUIT_WAIT; + circuit_detach_stream(TO_CIRCUIT(circ),ENTRY_TO_EDGE_CONN(conn)); return connection_ap_handshake_attach_circuit(conn); } else { - conn->_base.state = AP_CONN_STATE_CONTROLLER_WAIT; - circuit_detach_stream(TO_CIRCUIT(circ),conn); + ENTRY_TO_CONN(conn)->state = AP_CONN_STATE_CONTROLLER_WAIT; + circuit_detach_stream(TO_CIRCUIT(circ),ENTRY_TO_EDGE_CONN(conn)); return 0; } } @@ -1605,7 +1614,7 @@ addressmap_get_mappings(smartlist_t *sl, time_t min_expires, /** Check if <b>conn</b> is using a dangerous port. Then warn and/or * reject depending on our config options. */ static int -consider_plaintext_ports(edge_connection_t *conn, uint16_t port) +consider_plaintext_ports(entry_connection_t *conn, uint16_t port) { const or_options_t *options = get_options(); int reject = smartlist_string_num_isin(options->RejectPlaintextPorts, port); @@ -1640,14 +1649,14 @@ consider_plaintext_ports(edge_connection_t *conn, uint16_t port) * documentation for arguments and return value. */ int -connection_ap_rewrite_and_attach_if_allowed(edge_connection_t *conn, +connection_ap_rewrite_and_attach_if_allowed(entry_connection_t *conn, origin_circuit_t *circ, crypt_path_t *cpath) { const or_options_t *options = get_options();

if (options->LeaveStreamsUnattached) { - conn->_base.state = AP_CONN_STATE_CONTROLLER_WAIT; + ENTRY_TO_CONN(conn)->state = AP_CONN_STATE_CONTROLLER_WAIT; return 0; } return connection_ap_handshake_rewrite_and_attach(conn, circ, cpath); @@ -1669,7 +1678,7 @@ connection_ap_rewrite_and_attach_if_allowed(edge_connection_t *conn, * <b>cpath</b> is NULL. */ int -connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn, +connection_ap_handshake_rewrite_and_attach(entry_connection_t *conn, origin_circuit_t *circ, crypt_path_t *cpath) { @@ -1686,6 +1695,7 @@ connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn, address, and we remap it to one because of an entry in the addressmap. */ int remapped_to_exit = 0; time_t now = time(NULL); + connection_t *base_conn = ENTRY_TO_CONN(conn);

tor_strlower(socks->address); /* normalize it */ strlcpy(orig_address, socks->address, sizeof(orig_address)); @@ -1944,12 +1954,12 @@ connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn, } else { tor_fragile_assert(); } - conn->_base.state = AP_CONN_STATE_CIRCUIT_WAIT; + base_conn->state = AP_CONN_STATE_CIRCUIT_WAIT; if ((circ && connection_ap_handshake_attach_chosen_circuit( conn, circ, cpath) < 0) || (!circ && connection_ap_handshake_attach_circuit(conn) < 0)) { - if (!conn->_base.marked_for_close) + if (!base_conn->marked_for_close) connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH); return -1; } @@ -1959,6 +1969,7 @@ connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn, rend_cache_entry_t *entry; int r; rend_service_authorization_t *client_auth; + rend_data_t *rend_data; tor_assert(!automap); if (SOCKS_COMMAND_IS_RESOLVE(socks->command)) { /* if it's a resolve request, fail it right now, rather than @@ -1980,16 +1991,17 @@ connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn, return -1; }

- conn->rend_data = tor_malloc_zero(sizeof(rend_data_t)); - strlcpy(conn->rend_data->onion_address, socks->address, - sizeof(conn->rend_data->onion_address)); + ENTRY_TO_EDGE_CONN(conn)->rend_data = rend_data = + tor_malloc_zero(sizeof(rend_data_t)); + strlcpy(rend_data->onion_address, socks->address, + sizeof(rend_data->onion_address)); log_info(LD_REND,"Got a hidden service request for ID '%s'", - safe_str_client(conn->rend_data->onion_address)); + safe_str_client(rend_data->onion_address)); /* see if we already have it cached */ - r = rend_cache_lookup_entry(conn->rend_data->onion_address, -1, &entry); + r = rend_cache_lookup_entry(rend_data->onion_address, -1, &entry); if (r<0) { log_warn(LD_BUG,"Invalid service name '%s'", - safe_str_client(conn->rend_data->onion_address)); + safe_str_client(rend_data->onion_address)); connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL); return -1; } @@ -2000,24 +2012,24 @@ connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn,

/* Look up if we have client authorization for it. */ client_auth = rend_client_lookup_service_authorization( - conn->rend_data->onion_address); + rend_data->onion_address); if (client_auth) { log_info(LD_REND, "Using previously configured client authorization " "for hidden service request."); - memcpy(conn->rend_data->descriptor_cookie, + memcpy(rend_data->descriptor_cookie, client_auth->descriptor_cookie, REND_DESC_COOKIE_LEN); - conn->rend_data->auth_type = client_auth->auth_type; + rend_data->auth_type = client_auth->auth_type; } if (r==0) { - conn->_base.state = AP_CONN_STATE_RENDDESC_WAIT; + base_conn->state = AP_CONN_STATE_RENDDESC_WAIT; log_info(LD_REND, "Unknown descriptor %s. Fetching.", - safe_str_client(conn->rend_data->onion_address)); - rend_client_refetch_v2_renddesc(conn->rend_data); + safe_str_client(rend_data->onion_address)); + rend_client_refetch_v2_renddesc(rend_data); } else { /* r > 0 */ - conn->_base.state = AP_CONN_STATE_CIRCUIT_WAIT; + base_conn->state = AP_CONN_STATE_CIRCUIT_WAIT; log_info(LD_REND, "Descriptor is here. Great."); if (connection_ap_handshake_attach_circuit(conn) < 0) { - if (!conn->_base.marked_for_close) + if (!base_conn->marked_for_close) connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH); return -1; } @@ -2063,7 +2075,7 @@ get_pf_socket(void) * else return 0. */ static int -connection_ap_get_original_destination(edge_connection_t *conn, +connection_ap_get_original_destination(entry_connection_t *conn, socks_request_t *req) { #ifdef TRANS_NETFILTER @@ -2072,9 +2084,9 @@ connection_ap_get_original_destination(edge_connection_t *conn, socklen_t orig_dst_len = sizeof(orig_dst); tor_addr_t addr;

- if (getsockopt(conn->_base.s, SOL_IP, SO_ORIGINAL_DST, + if (getsockopt(ENTRY_TO_CONN(conn)->s, SOL_IP, SO_ORIGINAL_DST, (struct sockaddr*)&orig_dst, &orig_dst_len) < 0) { - int e = tor_socket_errno(conn->_base.s); + int e = tor_socket_errno(ENTRY_TO_CONN(conn)->s); log_warn(LD_NET, "getsockopt() failed: %s", tor_socket_strerror(e)); return -1; } @@ -2091,9 +2103,9 @@ connection_ap_get_original_destination(edge_connection_t *conn, tor_addr_t addr; int pf = -1;

- if (getsockname(conn->_base.s, (struct sockaddr*)&proxy_addr, + if (getsockname(ENTRY_TO_CONN(conn)->s, (struct sockaddr*)&proxy_addr, &proxy_addr_len) < 0) { - int e = tor_socket_errno(conn->_base.s); + int e = tor_socket_errno(ENTRY_TO_CONN(conn)->s); log_warn(LD_NET, "getsockname() to determine transocks destination " "failed: %s", tor_socket_strerror(e)); return -1; @@ -2105,16 +2117,16 @@ connection_ap_get_original_destination(edge_connection_t *conn, if (proxy_sa->sa_family == AF_INET) { struct sockaddr_in *sin = (struct sockaddr_in *)proxy_sa; pnl.af = AF_INET; - pnl.saddr.v4.s_addr = tor_addr_to_ipv4n(&conn->_base.addr); - pnl.sport = htons(conn->_base.port); + pnl.saddr.v4.s_addr = tor_addr_to_ipv4n(&ENTRY_TO_CONN(conn)->addr); + pnl.sport = htons(ENTRY_TO_CONN(conn)->port); pnl.daddr.v4.s_addr = sin->sin_addr.s_addr; pnl.dport = sin->sin_port; } else if (proxy_sa->sa_family == AF_INET6) { struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)proxy_sa; pnl.af = AF_INET6; - memcpy(&pnl.saddr.v6, tor_addr_to_in6(&conn->_base.addr), + memcpy(&pnl.saddr.v6, tor_addr_to_in6(&ENTRY_TO_CONN(conn)->addr), sizeof(struct in6_addr)); - pnl.sport = htons(conn->_base.port); + pnl.sport = htons(ENTRY_TO_CONN(conn)->port); memcpy(&pnl.daddr.v6, &sin6->sin6_addr, sizeof(struct in6_addr)); pnl.dport = sin6->sin6_port; } else { @@ -2165,34 +2177,35 @@ connection_ap_get_original_destination(edge_connection_t *conn, * else return 0. */ static int -connection_ap_handshake_process_socks(edge_connection_t *conn) +connection_ap_handshake_process_socks(entry_connection_t *conn) { socks_request_t *socks; int sockshere; const or_options_t *options = get_options(); int had_reply = 0; + connection_t *base_conn = ENTRY_TO_CONN(conn);

tor_assert(conn); - tor_assert(conn->_base.type == CONN_TYPE_AP); - tor_assert(conn->_base.state == AP_CONN_STATE_SOCKS_WAIT); + tor_assert(base_conn->type == CONN_TYPE_AP); + tor_assert(base_conn->state == AP_CONN_STATE_SOCKS_WAIT); tor_assert(conn->socks_request); socks = conn->socks_request;

log_debug(LD_APP,"entered.");

- IF_HAS_BUFFEREVENT(TO_CONN(conn), { - struct evbuffer *input = bufferevent_get_input(conn->_base.bufev); + IF_HAS_BUFFEREVENT(base_conn, { + struct evbuffer *input = bufferevent_get_input(base_conn->bufev); sockshere = fetch_from_evbuffer_socks(input, socks, options->TestSocks, options->SafeSocks); }) ELSE_IF_NO_BUFFEREVENT { - sockshere = fetch_from_buf_socks(conn->_base.inbuf, socks, + sockshere = fetch_from_buf_socks(base_conn->inbuf, socks, options->TestSocks, options->SafeSocks); };

if (socks->replylen) { had_reply = 1; connection_write_to_buf((const char*)socks->reply, socks->replylen, - TO_CONN(conn)); + base_conn); socks->replylen = 0; }

@@ -2227,12 +2240,11 @@ connection_ap_handshake_process_socks(edge_connection_t *conn) * for close), else return 0. */ int -connection_ap_process_transparent(edge_connection_t *conn) +connection_ap_process_transparent(entry_connection_t *conn) { socks_request_t *socks;

tor_assert(conn); - tor_assert(conn->_base.type == CONN_TYPE_AP); tor_assert(conn->socks_request); socks = conn->socks_request;

@@ -2268,7 +2280,7 @@ connection_ap_process_transparent(edge_connection_t *conn) * for close), else return 0. */ static int -connection_ap_process_natd(edge_connection_t *conn) +connection_ap_process_natd(entry_connection_t *conn) { char tmp_buf[36], *tbuf, *daddr; size_t tlen = 30; @@ -2276,8 +2288,7 @@ connection_ap_process_natd(edge_connection_t *conn) socks_request_t *socks;

tor_assert(conn); - tor_assert(conn->_base.type == CONN_TYPE_AP); - tor_assert(conn->_base.state == AP_CONN_STATE_NATD_WAIT); + tor_assert(ENTRY_TO_CONN(conn)->state == AP_CONN_STATE_NATD_WAIT); tor_assert(conn->socks_request); socks = conn->socks_request;

@@ -2285,7 +2296,7 @@ connection_ap_process_natd(edge_connection_t *conn)

/* look for LF-terminated "[DEST ip_addr port]" * where ip_addr is a dotted-quad and port is in string form */ - err = connection_fetch_from_buf_line(TO_CONN(conn), tmp_buf, &tlen); + err = connection_fetch_from_buf_line(ENTRY_TO_CONN(conn), tmp_buf, &tlen); if (err == 0) return 0; if (err < 0) { @@ -2329,7 +2340,7 @@ connection_ap_process_natd(edge_connection_t *conn)

control_event_stream_status(conn, STREAM_EVENT_NEW, 0);

- conn->_base.state = AP_CONN_STATE_CIRCUIT_WAIT; + ENTRY_TO_CONN(conn)->state = AP_CONN_STATE_CIRCUIT_WAIT;

return connection_ap_rewrite_and_attach_if_allowed(conn, NULL, NULL); } @@ -2362,14 +2373,14 @@ get_unique_stream_id_by_circ(origin_circuit_t *circ) /** Return true iff <b>conn</b> is linked to a circuit and configured to use * an exit that supports optimistic data. */ static int -connection_ap_supports_optimistic_data(const edge_connection_t *conn) +connection_ap_supports_optimistic_data(const entry_connection_t *conn) { - tor_assert(conn->_base.type == CONN_TYPE_AP); + const edge_connection_t *edge_conn = ENTRY_TO_EDGE_CONN(conn); /* We can only send optimistic data if we're connected to an open general circuit. */ - if (conn->on_circuit == NULL || - conn->on_circuit->state != CIRCUIT_STATE_OPEN || - conn->on_circuit->purpose != CIRCUIT_PURPOSE_C_GENERAL) + if (edge_conn->on_circuit == NULL || + edge_conn->on_circuit->state != CIRCUIT_STATE_OPEN || + edge_conn->on_circuit->purpose != CIRCUIT_PURPOSE_C_GENERAL) return 0;

return conn->may_use_optimistic_data; @@ -2381,22 +2392,24 @@ connection_ap_supports_optimistic_data(const edge_connection_t *conn) * If ap_conn is broken, mark it for close and return -1. Else return 0. */ int -connection_ap_handshake_send_begin(edge_connection_t *ap_conn) +connection_ap_handshake_send_begin(entry_connection_t *ap_conn) { char payload[CELL_PAYLOAD_SIZE]; int payload_len; int begin_type; origin_circuit_t *circ; - tor_assert(ap_conn->on_circuit); - circ = TO_ORIGIN_CIRCUIT(ap_conn->on_circuit); + edge_connection_t *edge_conn = ENTRY_TO_EDGE_CONN(ap_conn); + connection_t *base_conn = TO_CONN(edge_conn); + tor_assert(edge_conn->on_circuit); + circ = TO_ORIGIN_CIRCUIT(edge_conn->on_circuit);

- tor_assert(ap_conn->_base.type == CONN_TYPE_AP); - tor_assert(ap_conn->_base.state == AP_CONN_STATE_CIRCUIT_WAIT); + tor_assert(base_conn->type == CONN_TYPE_AP); + tor_assert(base_conn->state == AP_CONN_STATE_CIRCUIT_WAIT); tor_assert(ap_conn->socks_request); tor_assert(SOCKS_COMMAND_IS_CONNECT(ap_conn->socks_request->command));

- ap_conn->stream_id = get_unique_stream_id_by_circ(circ); - if (ap_conn->stream_id==0) { + edge_conn->stream_id = get_unique_stream_id_by_circ(circ); + if (edge_conn->stream_id==0) { /* XXXX023 Instead of closing this stream, we should make it get * retried on another circuit. */ connection_mark_unattached_ap(ap_conn, END_STREAM_REASON_INTERNAL); @@ -2417,7 +2430,7 @@ connection_ap_handshake_send_begin(edge_connection_t *ap_conn) log_info(LD_APP, "Sending relay cell %d to begin stream %d.", (int)ap_conn->use_begindir, - ap_conn->stream_id); + edge_conn->stream_id);

begin_type = ap_conn->use_begindir ? RELAY_COMMAND_BEGIN_DIR : RELAY_COMMAND_BEGIN; @@ -2425,28 +2438,28 @@ connection_ap_handshake_send_begin(edge_connection_t *ap_conn) tor_assert(circ->build_state->onehop_tunnel == 0); }

- if (connection_edge_send_command(ap_conn, begin_type, + if (connection_edge_send_command(edge_conn, begin_type, begin_type == RELAY_COMMAND_BEGIN ? payload : NULL, begin_type == RELAY_COMMAND_BEGIN ? payload_len : 0) < 0) return -1; /* circuit is closed, don't continue */

- ap_conn->package_window = STREAMWINDOW_START; - ap_conn->deliver_window = STREAMWINDOW_START; - ap_conn->_base.state = AP_CONN_STATE_CONNECT_WAIT; + edge_conn->package_window = STREAMWINDOW_START; + edge_conn->deliver_window = STREAMWINDOW_START; + base_conn->state = AP_CONN_STATE_CONNECT_WAIT; log_info(LD_APP,"Address/port sent, ap socket %d, n_circ_id %d", - ap_conn->_base.s, circ->_base.n_circ_id); + base_conn->s, circ->_base.n_circ_id); control_event_stream_status(ap_conn, STREAM_EVENT_SENT_CONNECT, 0);

/* If there's queued-up data, send it now */ - if ((connection_get_inbuf_len(TO_CONN(ap_conn)) || + if ((connection_get_inbuf_len(base_conn) || ap_conn->sending_optimistic_data) && connection_ap_supports_optimistic_data(ap_conn)) { log_info(LD_APP, "Sending up to %ld + %ld bytes of queued-up data", - connection_get_inbuf_len(TO_CONN(ap_conn)), + connection_get_inbuf_len(base_conn), ap_conn->sending_optimistic_data ? generic_buffer_len(ap_conn->sending_optimistic_data) : 0); - if (connection_edge_package_raw_inbuf(ap_conn, 1, NULL) < 0) { - connection_mark_for_close(TO_CONN(ap_conn)); + if (connection_edge_package_raw_inbuf(edge_conn, 1, NULL) < 0) { + connection_mark_for_close(base_conn); } }

@@ -2459,25 +2472,27 @@ connection_ap_handshake_send_begin(edge_connection_t *ap_conn) * If ap_conn is broken, mark it for close and return -1. Else return 0. */ int -connection_ap_handshake_send_resolve(edge_connection_t *ap_conn) +connection_ap_handshake_send_resolve(entry_connection_t *ap_conn) { int payload_len, command; const char *string_addr; char inaddr_buf[REVERSE_LOOKUP_NAME_BUF_LEN]; origin_circuit_t *circ; - tor_assert(ap_conn->on_circuit); - circ = TO_ORIGIN_CIRCUIT(ap_conn->on_circuit); + edge_connection_t *edge_conn = ENTRY_TO_EDGE_CONN(ap_conn); + connection_t *base_conn = TO_CONN(edge_conn); + tor_assert(edge_conn->on_circuit); + circ = TO_ORIGIN_CIRCUIT(edge_conn->on_circuit);

- tor_assert(ap_conn->_base.type == CONN_TYPE_AP); - tor_assert(ap_conn->_base.state == AP_CONN_STATE_CIRCUIT_WAIT); + tor_assert(base_conn->type == CONN_TYPE_AP); + tor_assert(base_conn->state == AP_CONN_STATE_CIRCUIT_WAIT); tor_assert(ap_conn->socks_request); tor_assert(circ->_base.purpose == CIRCUIT_PURPOSE_C_GENERAL);

command = ap_conn->socks_request->command; tor_assert(SOCKS_COMMAND_IS_RESOLVE(command));

- ap_conn->stream_id = get_unique_stream_id_by_circ(circ); - if (ap_conn->stream_id==0) { + edge_conn->stream_id = get_unique_stream_id_by_circ(circ); + if (edge_conn->stream_id==0) { /* XXXX023 Instead of closing this stream, we should make it get * retried on another circuit. */ connection_mark_unattached_ap(ap_conn, END_STREAM_REASON_INTERNAL); @@ -2522,18 +2537,18 @@ connection_ap_handshake_send_resolve(edge_connection_t *ap_conn) }

log_debug(LD_APP, - "Sending relay cell to begin stream %d.", ap_conn->stream_id); + "Sending relay cell to begin stream %d.", edge_conn->stream_id);

- if (connection_edge_send_command(ap_conn, + if (connection_edge_send_command(edge_conn, RELAY_COMMAND_RESOLVE, string_addr, payload_len) < 0) return -1; /* circuit is closed, don't continue */

- tor_free(ap_conn->_base.address); /* Maybe already set by dnsserv. */ - ap_conn->_base.address = tor_strdup("(Tor_internal)"); - ap_conn->_base.state = AP_CONN_STATE_RESOLVE_WAIT; + tor_free(base_conn->address); /* Maybe already set by dnsserv. */ + base_conn->address = tor_strdup("(Tor_internal)"); + base_conn->state = AP_CONN_STATE_RESOLVE_WAIT; log_info(LD_APP,"Address sent for resolve, ap socket %d, n_circ_id %d", - ap_conn->_base.s, circ->_base.n_circ_id); + base_conn->s, circ->_base.n_circ_id); control_event_stream_status(ap_conn, STREAM_EVENT_NEW, 0); control_event_stream_status(ap_conn, STREAM_EVENT_SENT_RESOLVE, 0); return 0; @@ -2546,23 +2561,23 @@ connection_ap_handshake_send_resolve(edge_connection_t *ap_conn) * Return the other end of the linked connection pair, or -1 if error. * DOCDOC partner. */ -edge_connection_t * +entry_connection_t * connection_ap_make_link(connection_t *partner, char *address, uint16_t port, const char *digest, int session_group, int isolation_flags, int use_begindir, int want_onehop) { - entry_connection_t *entry_conn; - edge_connection_t *conn; + entry_connection_t *conn; + connection_t *base_conn;

log_info(LD_APP,"Making internal %s tunnel to %s:%d ...", want_onehop ? "direct" : "anonymized", safe_str_client(address), port);

- entry_conn = entry_connection_new(CONN_TYPE_AP, AF_INET); - conn = ENTRY_TO_EDGE_CONN(entry_conn); - conn->_base.linked = 1; /* so that we can add it safely below. */ + conn = entry_connection_new(CONN_TYPE_AP, AF_INET); + base_conn = ENTRY_TO_CONN(conn); + base_conn->linked = 1; /* so that we can add it safely below. */

/* populate conn->socks_request */

@@ -2588,24 +2603,24 @@ connection_ap_make_link(connection_t *partner, conn->session_group = session_group; conn->isolation_flags = isolation_flags;

- conn->_base.address = tor_strdup("(Tor_internal)"); - tor_addr_make_unspec(&conn->_base.addr); - conn->_base.port = 0; + base_conn->address = tor_strdup("(Tor_internal)"); + tor_addr_make_unspec(&base_conn->addr); + base_conn->port = 0;

- connection_link_connections(partner, TO_CONN(conn)); + connection_link_connections(partner, base_conn);

- if (connection_add(TO_CONN(conn)) < 0) { /* no space, forget it */ - connection_free(TO_CONN(conn)); + if (connection_add(base_conn) < 0) { /* no space, forget it */ + connection_free(base_conn); return NULL; }

- conn->_base.state = AP_CONN_STATE_CIRCUIT_WAIT; + base_conn->state = AP_CONN_STATE_CIRCUIT_WAIT;

control_event_stream_status(conn, STREAM_EVENT_NEW, 0);

/* attaching to a dirty circuit is fine */ if (connection_ap_handshake_attach_circuit(conn) < 0) { - if (!conn->_base.marked_for_close) + if (!base_conn->marked_for_close) connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH); return NULL; } @@ -2618,7 +2633,7 @@ connection_ap_make_link(connection_t *partner, * or resolve error. Takes the same arguments as does * connection_ap_handshake_socks_resolved(). */ static void -tell_controller_about_resolved_result(edge_connection_t *conn, +tell_controller_about_resolved_result(entry_connection_t *conn, int answer_type, size_t answer_len, const char *answer, @@ -2657,7 +2672,7 @@ tell_controller_about_resolved_result(edge_connection_t *conn, /* XXXX023 the use of the ttl and expires fields is nutty. Let's make this * interface and those that use it less ugly. */ void -connection_ap_handshake_socks_resolved(edge_connection_t *conn, +connection_ap_handshake_socks_resolved(entry_connection_t *conn, int answer_type, size_t answer_len, const uint8_t *answer, @@ -2682,7 +2697,7 @@ connection_ap_handshake_socks_resolved(edge_connection_t *conn, } }

- if (conn->is_dns_request) { + if (ENTRY_TO_EDGE_CONN(conn)->is_dns_request) { if (conn->dns_server_request) { /* We had a request on our DNS port: answer it. */ dnsserv_resolved(conn, answer_type, answer_len, (char*)answer, ttl); @@ -2762,7 +2777,7 @@ connection_ap_handshake_socks_resolved(edge_connection_t *conn, * be 0 or REASON_DONE. Send endreason to the controller, if appropriate. */ void -connection_ap_handshake_socks_reply(edge_connection_t *conn, char *reply, +connection_ap_handshake_socks_reply(entry_connection_t *conn, char *reply, size_t replylen, int endreason) { char buf[256]; @@ -2781,7 +2796,7 @@ connection_ap_handshake_socks_reply(edge_connection_t *conn, char *reply, return; } if (replylen) { /* we already have a reply in mind */ - connection_write_to_buf(reply, replylen, TO_CONN(conn)); + connection_write_to_buf(reply, replylen, ENTRY_TO_CONN(conn)); conn->socks_request->has_finished = 1; return; } @@ -2789,7 +2804,7 @@ connection_ap_handshake_socks_reply(edge_connection_t *conn, char *reply, memset(buf,0,SOCKS4_NETWORK_LEN); buf[1] = (status==SOCKS5_SUCCEEDED ? SOCKS4_GRANTED : SOCKS4_REJECT); /* leave version, destport, destip zero */ - connection_write_to_buf(buf, SOCKS4_NETWORK_LEN, TO_CONN(conn)); + connection_write_to_buf(buf, SOCKS4_NETWORK_LEN, ENTRY_TO_CONN(conn)); } else if (conn->socks_request->socks_version == 5) { buf[0] = 5; /* version 5 */ buf[1] = (char)status; @@ -2797,7 +2812,7 @@ connection_ap_handshake_socks_reply(edge_connection_t *conn, char *reply, buf[3] = 1; /* ipv4 addr */ memset(buf+4,0,6); /* Set external addr/port to 0. The spec doesn't seem to say what to do here. -RD */ - connection_write_to_buf(buf,10,TO_CONN(conn)); + connection_write_to_buf(buf,10,ENTRY_TO_CONN(conn)); } /* If socks_version isn't 4 or 5, don't send anything. * This can happen in the case of AP bridges. */ @@ -3230,12 +3245,11 @@ connection_edge_is_rendezvous_stream(edge_connection_t *conn) * resolved.) */ int -connection_ap_can_use_exit(const edge_connection_t *conn, const node_t *exit) +connection_ap_can_use_exit(const entry_connection_t *conn, const node_t *exit) { const or_options_t *options = get_options();

tor_assert(conn); - tor_assert(conn->_base.type == CONN_TYPE_AP); tor_assert(conn->socks_request); tor_assert(exit);

@@ -3333,21 +3347,21 @@ parse_extended_hostname(char *address, int allowdotexit) /** Return true iff <b>a</b> and <b>b</b> have isolation rules and fields that * make it permissible to put them on the same circuit.*/ int -connection_edge_streams_are_compatible(const edge_connection_t *a, - const edge_connection_t *b) +connection_edge_streams_are_compatible(const entry_connection_t *a, + const entry_connection_t *b) { const uint8_t iso = a->isolation_flags | b->isolation_flags;

if (! a->original_dest_address) { log_warn(LD_BUG, "Reached connection_edge_streams_are_compatible without " "having set a->original_dest_address"); - ((edge_connection_t*)a)->original_dest_address = + ((entry_connection_t*)a)->original_dest_address = tor_strdup(a->socks_request->address); } if (! b->original_dest_address) { log_warn(LD_BUG, "Reached connection_edge_streams_are_compatible without " "having set b->original_dest_address"); - ((edge_connection_t*)b)->original_dest_address = + ((entry_connection_t*)b)->original_dest_address = tor_strdup(a->socks_request->address); }

@@ -3364,11 +3378,11 @@ connection_edge_streams_are_compatible(const edge_connection_t *a, strcmp_opt(a->socks_request->password, b->socks_request->password))) return 0; if ((iso & ISO_CLIENTPROTO) && - (TO_CONN(a)->type != TO_CONN(b)->type || + (ENTRY_TO_CONN(a)->type != ENTRY_TO_CONN(b)->type || a->socks_request->socks_version != b->socks_request->socks_version)) return 0; if ((iso & ISO_CLIENTADDR) && - !tor_addr_eq(&TO_CONN(a)->addr, &TO_CONN(b)->addr)) + !tor_addr_eq(&ENTRY_TO_CONN(a)->addr, &ENTRY_TO_CONN(b)->addr)) return 0; if ((iso & ISO_SESSIONGRP) && a->session_group != b->session_group) return 0; @@ -3383,7 +3397,7 @@ connection_edge_streams_are_compatible(const edge_connection_t *a, * should prevent it from being attached to <b>circ</b>. */ int -connection_edge_compatible_with_circuit(const edge_connection_t *conn, +connection_edge_compatible_with_circuit(const entry_connection_t *conn, const origin_circuit_t *circ) { const uint8_t iso = conn->isolation_flags; @@ -3407,7 +3421,7 @@ connection_edge_compatible_with_circuit(const edge_connection_t *conn, if (! conn->original_dest_address) { log_warn(LD_BUG, "Reached connection_edge_compatible_with_circuit without " "having set conn->original_dest_address"); - ((edge_connection_t*)conn)->original_dest_address = + ((entry_connection_t*)conn)->original_dest_address = tor_strdup(conn->socks_request->address); }

@@ -3426,11 +3440,11 @@ connection_edge_compatible_with_circuit(const edge_connection_t *conn, strcmp_opt(conn->socks_request->password, circ->socks_password))) return 0; if ((iso & ISO_CLIENTPROTO) && - (TO_CONN(conn)->type != circ->client_proto_type || + (ENTRY_TO_CONN(conn)->type != circ->client_proto_type || conn->socks_request->socks_version != circ->client_proto_socksver)) return 0; if ((iso & ISO_CLIENTADDR) && - !tor_addr_eq(&TO_CONN(conn)->addr, &circ->client_addr)) + !tor_addr_eq(&ENTRY_TO_CONN(conn)->addr, &circ->client_addr)) return 0; if ((iso & ISO_SESSIONGRP) && conn->session_group != circ->session_group) return 0; @@ -3449,14 +3463,14 @@ connection_edge_compatible_with_circuit(const edge_connection_t *conn, * <b>circ</b> has had no streams attached to it. */ int -connection_edge_update_circuit_isolation(const edge_connection_t *conn, +connection_edge_update_circuit_isolation(const entry_connection_t *conn, origin_circuit_t *circ, int dry_run) { if (! conn->original_dest_address) { log_warn(LD_BUG, "Reached connection_update_circuit_isolation without " "having set conn->original_dest_address"); - ((edge_connection_t*)conn)->original_dest_address = + ((entry_connection_t*)conn)->original_dest_address = tor_strdup(conn->socks_request->address); }

@@ -3465,9 +3479,9 @@ connection_edge_update_circuit_isolation(const edge_connection_t *conn, return -1; circ->dest_port = conn->socks_request->port; circ->dest_address = tor_strdup(conn->original_dest_address); - circ->client_proto_type = TO_CONN(conn)->type; + circ->client_proto_type = ENTRY_TO_CONN(conn)->type; circ->client_proto_socksver = conn->socks_request->socks_version; - tor_addr_copy(&circ->client_addr, &TO_CONN(conn)->addr); + tor_addr_copy(&circ->client_addr, &ENTRY_TO_CONN(conn)->addr); circ->session_group = conn->session_group; circ->nym_epoch = conn->nym_epoch; circ->socks_username = conn->socks_request->username ? @@ -3486,10 +3500,10 @@ connection_edge_update_circuit_isolation(const edge_connection_t *conn, if (strcmp_opt(conn->socks_request->username, circ->socks_username) || strcmp_opt(conn->socks_request->password, circ->socks_password)) mixed |= ISO_SOCKSAUTH; - if ((TO_CONN(conn)->type != circ->client_proto_type || + if ((ENTRY_TO_CONN(conn)->type != circ->client_proto_type || conn->socks_request->socks_version != circ->client_proto_socksver)) mixed |= ISO_CLIENTPROTO; - if (!tor_addr_eq(&TO_CONN(conn)->addr, &circ->client_addr)) + if (!tor_addr_eq(&ENTRY_TO_CONN(conn)->addr, &circ->client_addr)) mixed |= ISO_CLIENTADDR; if (conn->session_group != circ->session_group) mixed |= ISO_SESSIONGRP; diff --git a/src/or/connection_edge.h b/src/or/connection_edge.h index 85293a0..cf60cf4 100644 --- a/src/or/connection_edge.h +++ b/src/or/connection_edge.h @@ -15,7 +15,7 @@ #define connection_mark_unattached_ap(conn, endreason) \ _connection_mark_unattached_ap((conn), (endreason), __LINE__, _SHORT_FILE_)

-void _connection_mark_unattached_ap(edge_connection_t *conn, int endreason, +void _connection_mark_unattached_ap(entry_connection_t *conn, int endreason, int line, const char *file); int connection_edge_reached_eof(edge_connection_t *conn); int connection_edge_process_inbuf(edge_connection_t *conn, @@ -27,22 +27,22 @@ int connection_edge_flushed_some(edge_connection_t *conn); int connection_edge_finished_flushing(edge_connection_t *conn); int connection_edge_finished_connecting(edge_connection_t *conn);

-void connection_ap_about_to_close(edge_connection_t *edge_conn); +void connection_ap_about_to_close(entry_connection_t *edge_conn); void connection_exit_about_to_close(edge_connection_t *edge_conn);

-int connection_ap_handshake_send_begin(edge_connection_t *ap_conn); -int connection_ap_handshake_send_resolve(edge_connection_t *ap_conn); +int connection_ap_handshake_send_begin(entry_connection_t *ap_conn); +int connection_ap_handshake_send_resolve(entry_connection_t *ap_conn);

-edge_connection_t *connection_ap_make_link(connection_t *partner, +entry_connection_t *connection_ap_make_link(connection_t *partner, char *address, uint16_t port, const char *digest, int session_group, int isolation_flags, int use_begindir, int want_onehop); -void connection_ap_handshake_socks_reply(edge_connection_t *conn, char *reply, +void connection_ap_handshake_socks_reply(entry_connection_t *conn, char *reply, size_t replylen, int endreason); -void connection_ap_handshake_socks_resolved(edge_connection_t *conn, +void connection_ap_handshake_socks_resolved(entry_connection_t *conn, int answer_type, size_t answer_len, const uint8_t *answer, @@ -53,17 +53,17 @@ int connection_exit_begin_conn(cell_t *cell, circuit_t *circ); int connection_exit_begin_resolve(cell_t *cell, or_circuit_t *circ); void connection_exit_connect(edge_connection_t *conn); int connection_edge_is_rendezvous_stream(edge_connection_t *conn); -int connection_ap_can_use_exit(const edge_connection_t *conn, +int connection_ap_can_use_exit(const entry_connection_t *conn, const node_t *exit); void connection_ap_expire_beginning(void); void connection_ap_attach_pending(void); void connection_ap_fail_onehop(const char *failed_digest, cpath_build_state_t *build_state); void circuit_discard_optional_exit_enclaves(extend_info_t *info); -int connection_ap_detach_retriable(edge_connection_t *conn, +int connection_ap_detach_retriable(entry_connection_t *conn, origin_circuit_t *circ, int reason); -int connection_ap_process_transparent(edge_connection_t *conn); +int connection_ap_process_transparent(entry_connection_t *conn);

int address_is_invalid_destination(const char *address, int client);

@@ -88,10 +88,10 @@ void client_dns_set_addressmap(const char *address, uint32_t val, const char *addressmap_register_virtual_address(int type, char *new_address); void addressmap_get_mappings(smartlist_t *sl, time_t min_expires, time_t max_expires, int want_expiry); -int connection_ap_rewrite_and_attach_if_allowed(edge_connection_t *conn, +int connection_ap_rewrite_and_attach_if_allowed(entry_connection_t *conn, origin_circuit_t *circ, crypt_path_t *cpath); -int connection_ap_handshake_rewrite_and_attach(edge_connection_t *conn, +int connection_ap_handshake_rewrite_and_attach(entry_connection_t *conn, origin_circuit_t *circ, crypt_path_t *cpath);

@@ -105,11 +105,11 @@ hostname_type_t parse_extended_hostname(char *address, int allowdotexit); int get_pf_socket(void); #endif

-int connection_edge_streams_are_compatible(const edge_connection_t *a, - const edge_connection_t *b); -int connection_edge_compatible_with_circuit(const edge_connection_t *conn, +int connection_edge_streams_are_compatible(const entry_connection_t *a, + const entry_connection_t *b); +int connection_edge_compatible_with_circuit(const entry_connection_t *conn, const origin_circuit_t *circ); -int connection_edge_update_circuit_isolation(const edge_connection_t *conn, +int connection_edge_update_circuit_isolation(const entry_connection_t *conn, origin_circuit_t *circ, int dry_run); void circuit_clear_isolation(origin_circuit_t *circ); diff --git a/src/or/control.c b/src/or/control.c index ad11350..6a44730 100644 --- a/src/or/control.c +++ b/src/or/control.c @@ -176,7 +176,7 @@ static int handle_control_resolve(control_connection_t *conn, uint32_t len, static int handle_control_usefeature(control_connection_t *conn, uint32_t len, const char *body); -static int write_stream_target_to_buf(edge_connection_t *conn, char *buf, +static int write_stream_target_to_buf(entry_connection_t *conn, char *buf, size_t len); static void orconn_target_get_name(char *buf, size_t len, or_connection_t *conn); @@ -655,7 +655,7 @@ get_circ(const char *id) }

/** Given a text stream <b>id</b>, return the corresponding AP connection. */ -static edge_connection_t * +static entry_connection_t * get_stream(const char *id) { uint64_t n_id; @@ -667,7 +667,7 @@ get_stream(const char *id) conn = connection_get_by_global_id(n_id); if (!conn || conn->type != CONN_TYPE_AP || conn->marked_for_close) return NULL; - return TO_EDGE_CONN(conn); + return TO_ENTRY_CONN(conn); }

/** Helper for setconf and resetconf. Acts like setconf, except @@ -1800,7 +1800,7 @@ getinfo_helper_events(control_connection_t *control_conn, char buf[256]; SMARTLIST_FOREACH_BEGIN(conns, connection_t *, base_conn) { const char *state; - edge_connection_t *conn; + entry_connection_t *conn; char *s; size_t slen; circuit_t *circ; @@ -1810,8 +1810,8 @@ getinfo_helper_events(control_connection_t *control_conn, base_conn->state == AP_CONN_STATE_SOCKS_WAIT || base_conn->state == AP_CONN_STATE_NATD_WAIT) continue; - conn = TO_EDGE_CONN(base_conn); - switch (conn->_base.state) + conn = TO_ENTRY_CONN(base_conn); + switch (base_conn->state) { case AP_CONN_STATE_CONTROLLER_WAIT: case AP_CONN_STATE_CIRCUIT_WAIT: @@ -1830,17 +1830,17 @@ getinfo_helper_events(control_connection_t *control_conn, state = "SUCCEEDED"; break; default: log_warn(LD_BUG, "Asked for stream in unknown state %d", - conn->_base.state); + base_conn->state); continue; } - circ = circuit_get_by_edge_conn(conn); + circ = circuit_get_by_edge_conn(ENTRY_TO_EDGE_CONN(conn)); if (circ && CIRCUIT_IS_ORIGIN(circ)) origin_circ = TO_ORIGIN_CIRCUIT(circ); write_stream_target_to_buf(conn, buf, sizeof(buf)); slen = strlen(buf)+strlen(state)+32; s = tor_malloc(slen+1); tor_snprintf(s, slen, "%lu %s %lu %s", - (unsigned long) conn->_base.global_identifier,state, + (unsigned long) base_conn->global_identifier,state, origin_circ? (unsigned long)origin_circ->global_identifier : 0ul, buf); @@ -2460,7 +2460,7 @@ static int handle_control_attachstream(control_connection_t *conn, uint32_t len, const char *body) { - edge_connection_t *ap_conn = NULL; + entry_connection_t *ap_conn = NULL; origin_circuit_t *circ = NULL; int zero_circ; smartlist_t *args; @@ -2496,9 +2496,9 @@ handle_control_attachstream(control_connection_t *conn, uint32_t len, if (!ap_conn || (!zero_circ && !circ) || !hop_line_ok) return 0;

- if (ap_conn->_base.state != AP_CONN_STATE_CONTROLLER_WAIT && - ap_conn->_base.state != AP_CONN_STATE_CONNECT_WAIT && - ap_conn->_base.state != AP_CONN_STATE_RESOLVE_WAIT) { + if (ENTRY_TO_CONN(ap_conn)->state != AP_CONN_STATE_CONTROLLER_WAIT && + ENTRY_TO_CONN(ap_conn)->state != AP_CONN_STATE_CONNECT_WAIT && + ENTRY_TO_CONN(ap_conn)->state != AP_CONN_STATE_RESOLVE_WAIT) { connection_write_str_to_buf( "555 Connection is not managed by controller.\r\n", conn); @@ -2506,15 +2506,16 @@ handle_control_attachstream(control_connection_t *conn, uint32_t len, }

/* Do we need to detach it first? */ - if (ap_conn->_base.state != AP_CONN_STATE_CONTROLLER_WAIT) { - circuit_t *tmpcirc = circuit_get_by_edge_conn(ap_conn); - connection_edge_end(ap_conn, END_STREAM_REASON_TIMEOUT); + if (ENTRY_TO_CONN(ap_conn)->state != AP_CONN_STATE_CONTROLLER_WAIT) { + edge_connection_t *edge_conn = ENTRY_TO_EDGE_CONN(ap_conn); + circuit_t *tmpcirc = circuit_get_by_edge_conn(edge_conn); + connection_edge_end(edge_conn, END_STREAM_REASON_TIMEOUT); /* Un-mark it as ending, since we're going to reuse it. */ - ap_conn->edge_has_sent_end = 0; - ap_conn->end_reason = 0; + edge_conn->edge_has_sent_end = 0; + edge_conn->end_reason = 0; if (tmpcirc) - circuit_detach_stream(tmpcirc,ap_conn); - ap_conn->_base.state = AP_CONN_STATE_CONTROLLER_WAIT; + circuit_detach_stream(tmpcirc, edge_conn); + TO_CONN(edge_conn)->state = AP_CONN_STATE_CONTROLLER_WAIT; }

if (circ && (circ->_base.state != CIRCUIT_STATE_OPEN)) { @@ -2636,7 +2637,7 @@ static int handle_control_redirectstream(control_connection_t *conn, uint32_t len, const char *body) { - edge_connection_t *ap_conn = NULL; + entry_connection_t *ap_conn = NULL; char *new_addr = NULL; uint16_t new_port = 0; smartlist_t *args; @@ -2684,7 +2685,7 @@ static int handle_control_closestream(control_connection_t *conn, uint32_t len, const char *body) { - edge_connection_t *ap_conn=NULL; + entry_connection_t *ap_conn=NULL; uint8_t reason=0; smartlist_t *args; int ok; @@ -3264,7 +3265,7 @@ control_event_circuit_status(origin_circuit_t *circ, circuit_status_event_t tp, * <b>conn</b>, and write it to <b>buf</b>. Return 0 on success, -1 on * failure. */ static int -write_stream_target_to_buf(edge_connection_t *conn, char *buf, size_t len) +write_stream_target_to_buf(entry_connection_t *conn, char *buf, size_t len) { char buf2[256]; if (conn->chosen_exit_name) @@ -3275,8 +3276,8 @@ write_stream_target_to_buf(edge_connection_t *conn, char *buf, size_t len) if (tor_snprintf(buf, len, "%s%s%s:%d", conn->socks_request->address, conn->chosen_exit_name ? buf2 : "", - !conn->chosen_exit_name && - connection_edge_is_rendezvous_stream(conn) ? ".onion" : "", + !conn->chosen_exit_name && connection_edge_is_rendezvous_stream( + ENTRY_TO_EDGE_CONN(conn)) ? ".onion" : "", conn->socks_request->port)<0) return -1; return 0; @@ -3285,7 +3286,7 @@ write_stream_target_to_buf(edge_connection_t *conn, char *buf, size_t len) /** Something has happened to the stream associated with AP connection * <b>conn</b>: tell any interested control connections. */ int -control_event_stream_status(edge_connection_t *conn, stream_status_event_t tp, +control_event_stream_status(entry_connection_t *conn, stream_status_event_t tp, int reason_code) { char reason_buf[64]; @@ -3357,7 +3358,7 @@ control_event_stream_status(edge_connection_t *conn, stream_status_event_t tp,

if (tp == STREAM_EVENT_NEW) { tor_snprintf(addrport_buf,sizeof(addrport_buf), " SOURCE_ADDR=%s:%d", - TO_CONN(conn)->address, TO_CONN(conn)->port ); + ENTRY_TO_CONN(conn)->address, ENTRY_TO_CONN(conn)->port); } else { addrport_buf[0] = '\0'; } @@ -3365,12 +3366,12 @@ control_event_stream_status(edge_connection_t *conn, stream_status_event_t tp, if (tp == STREAM_EVENT_NEW_RESOLVE) { purpose = " PURPOSE=DNS_REQUEST"; } else if (tp == STREAM_EVENT_NEW) { - if (conn->is_dns_request || + if (ENTRY_TO_EDGE_CONN(conn)->is_dns_request || (conn->socks_request && SOCKS_COMMAND_IS_RESOLVE(conn->socks_request->command))) purpose = " PURPOSE=DNS_REQUEST"; else if (conn->use_begindir) { - connection_t *linked = TO_CONN(conn)->linked_conn; + connection_t *linked = ENTRY_TO_CONN(conn)->linked_conn; int linked_dir_purpose = -1; if (linked && linked->type == CONN_TYPE_DIR) linked_dir_purpose = linked->purpose; @@ -3382,12 +3383,13 @@ control_event_stream_status(edge_connection_t *conn, stream_status_event_t tp, purpose = " PURPOSE=USER"; }

- circ = circuit_get_by_edge_conn(conn); + circ = circuit_get_by_edge_conn(ENTRY_TO_EDGE_CONN(conn)); if (circ && CIRCUIT_IS_ORIGIN(circ)) origin_circ = TO_ORIGIN_CIRCUIT(circ); send_control_event(EVENT_STREAM_STATUS, ALL_FORMATS, "650 STREAM "U64_FORMAT" %s %lu %s%s%s%s\r\n", - U64_PRINTF_ARG(conn->_base.global_identifier), status, + U64_PRINTF_ARG(ENTRY_TO_CONN(conn)->global_identifier), + status, origin_circ? (unsigned long)origin_circ->global_identifier : 0ul, buf, reason_buf, addrport_buf, purpose); diff --git a/src/or/control.h b/src/or/control.h index 147a5af..3655184 100644 --- a/src/or/control.h +++ b/src/or/control.h @@ -37,7 +37,7 @@ int control_event_is_interesting(int event);

int control_event_circuit_status(origin_circuit_t *circ, circuit_status_event_t e, int reason); -int control_event_stream_status(edge_connection_t *conn, +int control_event_stream_status(entry_connection_t *conn, stream_status_event_t e, int reason); int control_event_or_conn_status(or_connection_t *conn, diff --git a/src/or/directory.c b/src/or/directory.c index 744bc12..16bea82 100644 --- a/src/or/directory.c +++ b/src/or/directory.c @@ -972,7 +972,7 @@ directory_initiate_command_rend(const char *address, const tor_addr_t *_addr, error indicates broken link in windowsland. */ } } else { /* we want to connect via a tor connection */ - edge_connection_t *linked_conn; + entry_connection_t *linked_conn; /* Anonymized tunneled connections can never share a circuit. * One-hop directory connections can share circuits with each other * but nothing else. */ @@ -1014,10 +1014,11 @@ directory_initiate_command_rend(const char *address, const tor_addr_t *_addr, if_modified_since);

connection_watch_events(TO_CONN(conn), READ_EVENT|WRITE_EVENT); - IF_HAS_BUFFEREVENT(TO_CONN(linked_conn), { - connection_watch_events(TO_CONN(linked_conn), READ_EVENT|WRITE_EVENT); + IF_HAS_BUFFEREVENT(ENTRY_TO_CONN(linked_conn), { + connection_watch_events(ENTRY_TO_CONN(linked_conn), + READ_EVENT|WRITE_EVENT); }) ELSE_IF_NO_BUFFEREVENT - connection_start_reading(TO_CONN(linked_conn)); + connection_start_reading(ENTRY_TO_CONN(linked_conn)); } }

diff --git a/src/or/dnsserv.c b/src/or/dnsserv.c index 6df581f..a54530c 100644 --- a/src/or/dnsserv.c +++ b/src/or/dnsserv.c @@ -118,7 +118,7 @@ evdns_server_callback(struct evdns_server_request *req, void *data_) /* Make a new dummy AP connection, and attach the request to it. */ entry_conn = entry_connection_new(CONN_TYPE_AP, AF_INET); conn = ENTRY_TO_EDGE_CONN(entry_conn); - conn->_base.state = AP_CONN_STATE_RESOLVE_WAIT; + TO_CONN(conn)->state = AP_CONN_STATE_RESOLVE_WAIT; conn->is_dns_request = 1;

tor_addr_copy(&TO_CONN(conn)->addr, &tor_addr); @@ -126,26 +126,26 @@ evdns_server_callback(struct evdns_server_request *req, void *data_) TO_CONN(conn)->address = tor_dup_addr(&tor_addr);

if (q->type == EVDNS_TYPE_A) - conn->socks_request->command = SOCKS_COMMAND_RESOLVE; + entry_conn->socks_request->command = SOCKS_COMMAND_RESOLVE; else - conn->socks_request->command = SOCKS_COMMAND_RESOLVE_PTR; + entry_conn->socks_request->command = SOCKS_COMMAND_RESOLVE_PTR;

- strlcpy(conn->socks_request->address, q->name, - sizeof(conn->socks_request->address)); + strlcpy(entry_conn->socks_request->address, q->name, + sizeof(entry_conn->socks_request->address));

- conn->dns_server_request = req; - conn->isolation_flags = listener->isolation_flags; - conn->session_group = listener->session_group; - conn->nym_epoch = get_signewnym_epoch(); + entry_conn->dns_server_request = req; + entry_conn->isolation_flags = listener->isolation_flags; + entry_conn->session_group = listener->session_group; + entry_conn->nym_epoch = get_signewnym_epoch();

- if (connection_add(TO_CONN(conn)) < 0) { + if (connection_add(ENTRY_TO_CONN(entry_conn)) < 0) { log_warn(LD_APP, "Couldn't register dummy connection for DNS request"); evdns_server_request_respond(req, DNS_ERR_SERVERFAILED); - connection_free(TO_CONN(conn)); + connection_free(ENTRY_TO_CONN(entry_conn)); return; }

- control_event_stream_status(conn, STREAM_EVENT_NEW, 0); + control_event_stream_status(entry_conn, STREAM_EVENT_NEW, 0);

/* Now, unless a controller asked us to leave streams unattached, * throw the connection over to get rewritten (which will @@ -154,7 +154,7 @@ evdns_server_callback(struct evdns_server_request *req, void *data_) log_info(LD_APP, "Passing request for %s to rewrite_and_attach.", escaped_safe_str_client(q->name)); q_name = tor_strdup(q->name); /* q could be freed in rewrite_and_attach */ - connection_ap_rewrite_and_attach_if_allowed(conn, NULL, NULL); + connection_ap_rewrite_and_attach_if_allowed(entry_conn, NULL, NULL); /* Now, the connection is marked if it was bad. */

log_info(LD_APP, "Passed request for %s to rewrite_and_attach_if_allowed.", @@ -180,19 +180,19 @@ dnsserv_launch_request(const char *name, int reverse) conn->_base.state = AP_CONN_STATE_RESOLVE_WAIT;

if (reverse) - conn->socks_request->command = SOCKS_COMMAND_RESOLVE_PTR; + entry_conn->socks_request->command = SOCKS_COMMAND_RESOLVE_PTR; else - conn->socks_request->command = SOCKS_COMMAND_RESOLVE; + entry_conn->socks_request->command = SOCKS_COMMAND_RESOLVE;

conn->is_dns_request = 1;

- strlcpy(conn->socks_request->address, name, - sizeof(conn->socks_request->address)); + strlcpy(entry_conn->socks_request->address, name, + sizeof(entry_conn->socks_request->address));

- conn->original_dest_address = tor_strdup(name); - conn->session_group = SESSION_GROUP_CONTROL_RESOLVE; - conn->nym_epoch = get_signewnym_epoch(); - conn->isolation_flags = ISO_DEFAULT; + entry_conn->original_dest_address = tor_strdup(name); + entry_conn->session_group = SESSION_GROUP_CONTROL_RESOLVE; + entry_conn->nym_epoch = get_signewnym_epoch(); + entry_conn->isolation_flags = ISO_DEFAULT;

if (connection_add(TO_CONN(conn))<0) { log_warn(LD_APP, "Couldn't register dummy connection for RESOLVE request"); @@ -207,7 +207,7 @@ dnsserv_launch_request(const char *name, int reverse) log_info(LD_APP, "Passing request for %s to rewrite_and_attach.", escaped_safe_str_client(name)); q_name = tor_strdup(name); /* q could be freed in rewrite_and_attach */ - connection_ap_rewrite_and_attach_if_allowed(conn, NULL, NULL); + connection_ap_rewrite_and_attach_if_allowed(entry_conn, NULL, NULL); /* Now, the connection is marked if it was bad. */

log_info(LD_APP, "Passed request for %s to rewrite_and_attach_if_allowed.", @@ -219,7 +219,7 @@ dnsserv_launch_request(const char *name, int reverse) /** If there is a pending request on <b>conn</b> that's waiting for an answer, * send back an error and free the request. */ void -dnsserv_reject_request(edge_connection_t *conn) +dnsserv_reject_request(entry_connection_t *conn) { if (conn->dns_server_request) { evdns_server_request_respond(conn->dns_server_request, @@ -265,7 +265,7 @@ evdns_get_orig_address(const struct evdns_server_request *req, * <b>answer_len</b>, in <b>answer</b>, with TTL <b>ttl</b>. Doesn't do * any caching; that's handled elsewhere. */ void -dnsserv_resolved(edge_connection_t *conn, +dnsserv_resolved(entry_connection_t *conn, int answer_type, size_t answer_len, const char *answer, diff --git a/src/or/dnsserv.h b/src/or/dnsserv.h index fcca868..73ec365 100644 --- a/src/or/dnsserv.h +++ b/src/or/dnsserv.h @@ -14,12 +14,12 @@

void dnsserv_configure_listener(connection_t *conn); void dnsserv_close_listener(connection_t *conn); -void dnsserv_resolved(edge_connection_t *conn, +void dnsserv_resolved(entry_connection_t *conn, int answer_type, size_t answer_len, const char *answer, int ttl); -void dnsserv_reject_request(edge_connection_t *conn); +void dnsserv_reject_request(entry_connection_t *conn); int dnsserv_launch_request(const char *name, int is_reverse);

#endif diff --git a/src/or/hibernate.c b/src/or/hibernate.c index f03433a..defb702 100644 --- a/src/or/hibernate.c +++ b/src/or/hibernate.c @@ -856,7 +856,7 @@ hibernate_go_dormant(time_t now) connection_edge_end(TO_EDGE_CONN(conn), END_STREAM_REASON_HIBERNATING); log_info(LD_NET,"Closing conn type %d", conn->type); if (conn->type == CONN_TYPE_AP) /* send socks failure if needed */ - connection_mark_unattached_ap(TO_EDGE_CONN(conn), + connection_mark_unattached_ap(TO_ENTRY_CONN(conn), END_STREAM_REASON_HIBERNATING); else connection_mark_for_close(conn); diff --git a/src/or/main.c b/src/or/main.c index 54e6451..6866ccc 100644 --- a/src/or/main.c +++ b/src/or/main.c @@ -859,13 +859,13 @@ directory_all_unreachable(time_t now)

while ((conn = connection_get_by_type_state(CONN_TYPE_AP, AP_CONN_STATE_CIRCUIT_WAIT))) { - edge_connection_t *edge_conn = TO_EDGE_CONN(conn); + entry_connection_t *entry_conn = TO_ENTRY_CONN(conn); log_notice(LD_NET, "Is your network connection down? " "Failing connection to '%s:%d'.", - safe_str_client(edge_conn->socks_request->address), - edge_conn->socks_request->port); - connection_mark_unattached_ap(edge_conn, + safe_str_client(entry_conn->socks_request->address), + entry_conn->socks_request->port); + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_NET_UNREACHABLE); } control_event_general_status(LOG_ERR, "DIR_ALL_UNREACHABLE"); diff --git a/src/or/or.h b/src/or/or.h index cebac3f..ca1433e 100644 --- a/src/or/or.h +++ b/src/or/or.h @@ -1181,20 +1181,20 @@ typedef struct edge_connection_t {

struct edge_connection_t *next_stream; /**< Points to the next stream at this * edge, if any */ - struct crypt_path_t *cpath_layer; /**< A pointer to which node in the circ - * this conn exits at. */ int package_window; /**< How many more relay cells can I send into the * circuit? */ int deliver_window; /**< How many more relay cells can end at me? */

- /** Nickname of planned exit node -- used with .exit support. */ - char *chosen_exit_name; - - socks_request_t *socks_request; /**< SOCKS structure describing request (AP - * only.) */ struct circuit_t *on_circuit; /**< The circuit (if any) that this edge * connection is using. */

+ /** A pointer to which node in the circ this conn exits at. Set for AP + * connections and for hidden service exit connections. */ + struct crypt_path_t *cpath_layer; + /** What rendezvous service are we querying for (if an AP) or providing (if + * an exit)? */ + rend_data_t *rend_data; + uint32_t address_ttl; /**< TTL for address-to-addr mapping on exit * connection. Exit connections only. */

@@ -1210,8 +1210,29 @@ typedef struct edge_connection_t { /** Bytes written since last call to control_event_stream_bandwidth_used() */ uint32_t n_written;

- /** What rendezvous service are we querying for? (AP only) */ - rend_data_t *rend_data; + /** True iff this connection is for a DNS request only. */ + unsigned int is_dns_request:1; + + unsigned int edge_has_sent_end:1; /**< For debugging; only used on edge + * connections. Set once we've set the stream end, + * and check in connection_about_to_close_connection(). + */ + /** True iff we've blocked reading until the circuit has fewer queued + * cells. */ + unsigned int edge_blocked_on_circ:1; + +} edge_connection_t; + +/** Subtype of edge_connection_t for an "entry connection" -- that is, a SOCKS + * connection, a DNS request, a TransPort connection or a NATD connection */ +typedef struct entry_connection_t { + edge_connection_t _edge; + + /** Nickname of planned exit node -- used with .exit support. */ + char *chosen_exit_name; + + socks_request_t *socks_request; /**< SOCKS structure describing request (AP + * only.) */

/* === Isolation related, AP only. === */ /** AP only: based on which factors do we isolate this stream? */ @@ -1232,6 +1253,19 @@ typedef struct edge_connection_t { * already retried several times. */ uint8_t num_socks_retries;

+ /** For AP connections only: buffer for data that we have sent + * optimistically, which we might need to re-send if we have to + * retry this connection. */ + generic_buffer_t *pending_optimistic_data; + /* For AP connections only: buffer for data that we previously sent + * optimistically which we are currently re-sending as we retry this + * connection. */ + generic_buffer_t *sending_optimistic_data; + + /** If this is a DNSPort connection, this field holds the pending DNS + * request that we're going to try to answer. */ + struct evdns_server_request *dns_server_request; + #define NUM_CIRCUITS_LAUNCHED_THRESHOLD 10 /** Number of times we've launched a circuit to handle this stream. If * it gets too high, that could indicate an inconsistency between our @@ -1239,9 +1273,6 @@ typedef struct edge_connection_t { * stream to one of the available circuits" logic. */ unsigned int num_circuits_launched:4;

- /** True iff this connection is for a DNS request only. */ - unsigned int is_dns_request:1; - /** True iff this stream must attach to a one-hop circuit (e.g. for * begin_dir). */ unsigned int want_onehop:1; @@ -1249,13 +1280,6 @@ typedef struct edge_connection_t { * itself rather than BEGIN (either via onehop or via a whole circuit). */ unsigned int use_begindir:1;

- unsigned int edge_has_sent_end:1; /**< For debugging; only used on edge - * connections. Set once we've set the stream end, - * and check in connection_about_to_close_connection(). - */ - /** True iff we've blocked reading until the circuit has fewer queued - * cells. */ - unsigned int edge_blocked_on_circ:1; /** For AP connections only. If 1, and we fail to reach the chosen exit, * stop requiring it. */ unsigned int chosen_exit_optional:1; @@ -1275,26 +1299,6 @@ typedef struct edge_connection_t { */ unsigned int may_use_optimistic_data : 1;

- /** For AP connections only: buffer for data that we have sent - * optimistically, which we might need to re-send if we have to - * retry this connection. */ - generic_buffer_t *pending_optimistic_data; - /* For AP connections only: buffer for data that we previously sent - * optimistically which we are currently re-sending as we retry this - * connection. */ - generic_buffer_t *sending_optimistic_data; - - /** If this is a DNSPort connection, this field holds the pending DNS - * request that we're going to try to answer. */ - struct evdns_server_request *dns_server_request; - -} edge_connection_t; - -/** Subtype of edge_connection_t for an "entry connection" -- that is, a SOCKS - * connection, a DNS request, a TransPort connection or a NATD connection */ -typedef struct entry_connection_t { - edge_connection_t _edge; - } entry_connection_t;

/** Subtype of connection_t for an "directory connection" -- that is, an HTTP @@ -1385,6 +1389,9 @@ static edge_connection_t *TO_EDGE_CONN(connection_t *); /** Convert a connection_t* to an entry_connection_t*; assert if the cast is * invalid. */ static entry_connection_t *TO_ENTRY_CONN(connection_t *); +/** Convert a edge_connection_t* to an entry_connection_t*; assert if the cast is + * invalid. */ +static entry_connection_t *EDGE_TO_ENTRY_CONN(edge_connection_t *); /** Convert a connection_t* to an control_connection_t*; assert if the cast is * invalid. */ static control_connection_t *TO_CONTROL_CONN(connection_t *); @@ -1413,6 +1420,11 @@ static INLINE entry_connection_t *TO_ENTRY_CONN(connection_t *c) tor_assert(c->magic == ENTRY_CONNECTION_MAGIC); return (entry_connection_t*) SUBTYPE_P(c, entry_connection_t, _edge._base); } +static INLINE entry_connection_t *EDGE_TO_ENTRY_CONN(edge_connection_t *c) +{ + tor_assert(c->_base.magic == ENTRY_CONNECTION_MAGIC); + return (entry_connection_t*) SUBTYPE_P(c, entry_connection_t, _edge); +} static INLINE control_connection_t *TO_CONTROL_CONN(connection_t *c) { tor_assert(c->magic == CONTROL_CONNECTION_MAGIC); diff --git a/src/or/relay.c b/src/or/relay.c index 3fa31a3..5bbcf0a 100644 --- a/src/or/relay.c +++ b/src/or/relay.c @@ -649,6 +649,7 @@ connection_edge_send_command(edge_connection_t *fromconn, { /* XXXX NM Split this function into a separate versions per circuit type? */ circuit_t *circ; + crypt_path_t *cpath_layer = fromconn->cpath_layer; tor_assert(fromconn); circ = fromconn->on_circuit;

@@ -663,7 +664,8 @@ connection_edge_send_command(edge_connection_t *fromconn, if (!circ) { if (fromconn->_base.type == CONN_TYPE_AP) { log_info(LD_APP,"no circ. Closing conn."); - connection_mark_unattached_ap(fromconn, END_STREAM_REASON_INTERNAL); + connection_mark_unattached_ap(EDGE_TO_ENTRY_CONN(fromconn), + END_STREAM_REASON_INTERNAL); } else { log_info(LD_EXIT,"no circ. Closing conn."); fromconn->edge_has_sent_end = 1; /* no circ to send to */ @@ -675,7 +677,7 @@ connection_edge_send_command(edge_connection_t *fromconn,

return relay_send_command_from_edge(fromconn->stream_id, circ, relay_command, payload, - payload_len, fromconn->cpath_layer); + payload_len, cpath_layer); }

/** How many times will I retry a stream that fails due to DNS @@ -703,16 +705,17 @@ edge_reason_is_retriable(int reason) static int connection_ap_process_end_not_open( relay_header_t *rh, cell_t *cell, origin_circuit_t *circ, - edge_connection_t *conn, crypt_path_t *layer_hint) + entry_connection_t *conn, crypt_path_t *layer_hint) { struct in_addr in; node_t *exitrouter; int reason = *(cell->payload+RELAY_HEADER_SIZE); int control_reason = reason | END_STREAM_REASON_FLAG_REMOTE; + edge_connection_t *edge_conn = ENTRY_TO_EDGE_CONN(conn); (void) layer_hint; /* unused */

if (rh->length > 0 && edge_reason_is_retriable(reason) && - !connection_edge_is_rendezvous_stream(conn) /* avoid retry if rend */ + !connection_edge_is_rendezvous_stream(edge_conn) /* avoid retry if rend */ ) { const char *chosen_exit_digest = circ->build_state->chosen_exit->identity_digest; @@ -840,7 +843,7 @@ connection_ap_process_end_not_open( stream_end_reason_to_string(rh->length > 0 ? reason : -1)); circuit_log_path(LOG_INFO,LD_APP,circ); /* need to test because of detach_retriable */ - if (!conn->_base.marked_for_close) + if (!ENTRY_TO_CONN(conn)->marked_for_close) connection_mark_unattached_ap(conn, control_reason); return 0; } @@ -849,7 +852,7 @@ connection_ap_process_end_not_open( * dotted-quad representation of <b>new_addr</b> (given in host order), * and send an appropriate REMAP event. */ static void -remap_event_helper(edge_connection_t *conn, uint32_t new_addr) +remap_event_helper(entry_connection_t *conn, uint32_t new_addr) { struct in_addr in;

@@ -875,7 +878,8 @@ connection_edge_process_relay_cell_not_open( if (rh->command == RELAY_COMMAND_END) { if (CIRCUIT_IS_ORIGIN(circ) && conn->_base.type == CONN_TYPE_AP) { return connection_ap_process_end_not_open(rh, cell, - TO_ORIGIN_CIRCUIT(circ), conn, + TO_ORIGIN_CIRCUIT(circ), + EDGE_TO_ENTRY_CONN(conn), layer_hint); } else { /* we just got an 'end', don't need to send one */ @@ -889,6 +893,7 @@ connection_edge_process_relay_cell_not_open(

if (conn->_base.type == CONN_TYPE_AP && rh->command == RELAY_COMMAND_CONNECTED) { + entry_connection_t *entry_conn = EDGE_TO_ENTRY_CONN(conn); tor_assert(CIRCUIT_IS_ORIGIN(circ)); if (conn->_base.state != AP_CONN_STATE_CONNECT_WAIT) { log_fn(LOG_PROTOCOL_WARN, LD_APP, @@ -906,22 +911,23 @@ connection_edge_process_relay_cell_not_open( log_info(LD_APP, "...but it claims the IP address was %s. Closing.", fmt_addr32(addr)); connection_edge_end(conn, END_STREAM_REASON_TORPROTOCOL); - connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL); + connection_mark_unattached_ap(entry_conn, + END_STREAM_REASON_TORPROTOCOL); return 0; } if (rh->length >= 8) ttl = (int)ntohl(get_uint32(cell->payload+RELAY_HEADER_SIZE+4)); else ttl = -1; - client_dns_set_addressmap(conn->socks_request->address, addr, - conn->chosen_exit_name, ttl); + client_dns_set_addressmap(entry_conn->socks_request->address, addr, + entry_conn->chosen_exit_name, ttl);

- remap_event_helper(conn, addr); + remap_event_helper(entry_conn, addr); } circuit_log_path(LOG_INFO,LD_APP,TO_ORIGIN_CIRCUIT(circ)); /* don't send a socks reply to transparent conns */ - if (!conn->socks_request->has_finished) - connection_ap_handshake_socks_reply(conn, NULL, 0, 0); + if (!entry_conn->socks_request->has_finished) + connection_ap_handshake_socks_reply(entry_conn, NULL, 0, 0);

/* Was it a linked dir conn? If so, a dir request just started to * fetch something; this could be a bootstrap status milestone. */ @@ -946,9 +952,9 @@ connection_edge_process_relay_cell_not_open( } /* This is definitely a success, so forget about any pending data we * had sent. */ - if (conn->pending_optimistic_data) { - generic_buffer_free(conn->pending_optimistic_data); - conn->pending_optimistic_data = NULL; + if (entry_conn->pending_optimistic_data) { + generic_buffer_free(entry_conn->pending_optimistic_data); + entry_conn->pending_optimistic_data = NULL; }

/* handle anything that might have queued */ @@ -964,17 +970,18 @@ connection_edge_process_relay_cell_not_open( int ttl; int answer_len; uint8_t answer_type; + entry_connection_t *entry_conn = EDGE_TO_ENTRY_CONN(conn); if (conn->_base.state != AP_CONN_STATE_RESOLVE_WAIT) { log_fn(LOG_PROTOCOL_WARN, LD_APP, "Got a 'resolved' cell while " "not in state resolve_wait. Dropping."); return 0; } - tor_assert(SOCKS_COMMAND_IS_RESOLVE(conn->socks_request->command)); + tor_assert(SOCKS_COMMAND_IS_RESOLVE(entry_conn->socks_request->command)); answer_len = cell->payload[RELAY_HEADER_SIZE+1]; if (rh->length < 2 || answer_len+2>rh->length) { log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL, "Dropping malformed 'resolved' cell"); - connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL); + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_TORPROTOCOL); return 0; } answer_type = cell->payload[RELAY_HEADER_SIZE]; @@ -989,14 +996,14 @@ connection_edge_process_relay_cell_not_open( is_internal_IP(addr, 0)) { log_info(LD_APP,"Got a resolve with answer %s. Rejecting.", fmt_addr32(addr)); - connection_ap_handshake_socks_resolved(conn, + connection_ap_handshake_socks_resolved(entry_conn, RESOLVED_TYPE_ERROR_TRANSIENT, 0, NULL, 0, TIME_MAX); - connection_mark_unattached_ap(conn, END_STREAM_REASON_TORPROTOCOL); + connection_mark_unattached_ap(entry_conn,END_STREAM_REASON_TORPROTOCOL); return 0; } } - connection_ap_handshake_socks_resolved(conn, + connection_ap_handshake_socks_resolved(entry_conn, answer_type, cell->payload[RELAY_HEADER_SIZE+1], /*answer_len*/ cell->payload+RELAY_HEADER_SIZE+2, /*answer*/ @@ -1004,9 +1011,9 @@ connection_edge_process_relay_cell_not_open( -1); if (answer_type == RESOLVED_TYPE_IPV4 && answer_len == 4) { uint32_t addr = ntohl(get_uint32(cell->payload+RELAY_HEADER_SIZE+2)); - remap_event_helper(conn, addr); + remap_event_helper(entry_conn, addr); } - connection_mark_unattached_ap(conn, + connection_mark_unattached_ap(entry_conn, END_STREAM_REASON_DONE | END_STREAM_REASON_FLAG_ALREADY_SOCKS_REPLIED); return 0; @@ -1164,9 +1171,13 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ, conn->_base.s, stream_end_reason_to_string(reason), conn->stream_id); - if (conn->socks_request && !conn->socks_request->has_finished) - log_warn(LD_BUG, - "open stream hasn't sent socks answer yet? Closing."); + if (conn->_base.type == CONN_TYPE_AP) { + entry_connection_t *entry_conn = EDGE_TO_ENTRY_CONN(conn); + if (entry_conn->socks_request && + !entry_conn->socks_request->has_finished) + log_warn(LD_BUG, + "open stream hasn't sent socks answer yet? Closing."); + } /* We just *got* an end; no reason to send one. */ conn->edge_has_sent_end = 1; if (!conn->end_reason) @@ -1348,11 +1359,14 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial, size_t amount_to_process, length; char payload[CELL_PAYLOAD_SIZE]; circuit_t *circ; - unsigned domain = conn->cpath_layer ? LD_APP : LD_EXIT; + const unsigned domain = conn->_base.type == CONN_TYPE_AP ? LD_APP : LD_EXIT; int sending_from_optimistic = 0; const int sending_optimistically = conn->_base.type == CONN_TYPE_AP && conn->_base.state != AP_CONN_STATE_OPEN; + entry_connection_t *entry_conn = + conn->_base.type == CONN_TYPE_AP ? EDGE_TO_ENTRY_CONN(conn) : NULL; + crypt_path_t *cpath_layer = conn->cpath_layer;

tor_assert(conn);

@@ -1375,7 +1389,7 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial, return -1; }

- if (circuit_consider_stop_edge_reading(circ, conn->cpath_layer)) + if (circuit_consider_stop_edge_reading(circ, cpath_layer)) return 0;

if (conn->package_window <= 0) { @@ -1385,10 +1399,11 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial, return 0; }

- sending_from_optimistic = conn->sending_optimistic_data != NULL; + sending_from_optimistic = entry_conn && + entry_conn->sending_optimistic_data != NULL;

if (PREDICT_UNLIKELY(sending_from_optimistic)) { - amount_to_process = generic_buffer_len(conn->sending_optimistic_data); + amount_to_process = generic_buffer_len(entry_conn->sending_optimistic_data); if (PREDICT_UNLIKELY(!amount_to_process)) { log_warn(LD_BUG, "sending_optimistic_data was non-NULL but empty"); amount_to_process = connection_get_inbuf_len(TO_CONN(conn)); @@ -1416,10 +1431,10 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial, /* XXX023 We could be more efficient here by sometimes packing * previously-sent optimistic data in the same cell with data * from the inbuf. */ - generic_buffer_get(conn->sending_optimistic_data, payload, length); - if (!generic_buffer_len(conn->sending_optimistic_data)) { - generic_buffer_free(conn->sending_optimistic_data); - conn->sending_optimistic_data = NULL; + generic_buffer_get(entry_conn->sending_optimistic_data, payload, length); + if (!generic_buffer_len(entry_conn->sending_optimistic_data)) { + generic_buffer_free(entry_conn->sending_optimistic_data); + entry_conn->sending_optimistic_data = NULL; } } else { connection_fetch_from_buf(payload, length, TO_CONN(conn)); @@ -1431,9 +1446,9 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial, if (sending_optimistically && !sending_from_optimistic) { /* This is new optimistic data; remember it in case we need to detach and retry */ - if (!conn->pending_optimistic_data) - conn->pending_optimistic_data = generic_buffer_new(); - generic_buffer_add(conn->pending_optimistic_data, payload, length); + if (!entry_conn->pending_optimistic_data) + entry_conn->pending_optimistic_data = generic_buffer_new(); + generic_buffer_add(entry_conn->pending_optimistic_data, payload, length); }

if (connection_edge_send_command(conn, RELAY_COMMAND_DATA, @@ -1441,18 +1456,18 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial, /* circuit got marked for close, don't continue, don't need to mark conn */ return 0;

- if (!conn->cpath_layer) { /* non-rendezvous exit */ + if (!cpath_layer) { /* non-rendezvous exit */ tor_assert(circ->package_window > 0); circ->package_window--; } else { /* we're an AP, or an exit on a rendezvous circ */ - tor_assert(conn->cpath_layer->package_window > 0); - conn->cpath_layer->package_window--; + tor_assert(cpath_layer->package_window > 0); + cpath_layer->package_window--; }

if (--conn->package_window <= 0) { /* is it 0 after decrement? */ connection_stop_reading(TO_CONN(conn)); log_debug(domain,"conn->package_window reached 0."); - circuit_consider_stop_edge_reading(circ, conn->cpath_layer); + circuit_consider_stop_edge_reading(circ, cpath_layer); return 0; /* don't process the inbuf any more */ } log_debug(domain,"conn->package_window is now %d",conn->package_window); @@ -1491,7 +1506,7 @@ connection_edge_consider_sending_sendme(edge_connection_t *conn) }

while (conn->deliver_window <= STREAMWINDOW_START - STREAMWINDOW_INCREMENT) { - log_debug(conn->cpath_layer?LD_APP:LD_EXIT, + log_debug(conn->_base.type == CONN_TYPE_AP ?LD_APP:LD_EXIT, "Outbuf %d, Queuing stream sendme.", (int)conn->_base.outbuf_flushlen); conn->deliver_window += STREAMWINDOW_INCREMENT; @@ -1693,9 +1708,10 @@ circuit_consider_stop_edge_reading(circuit_t *circ, crypt_path_t *layer_hint) if (layer_hint->package_window <= 0) { log_debug(domain,"yes, at-origin. stopped."); for (conn = TO_ORIGIN_CIRCUIT(circ)->p_streams; conn; - conn=conn->next_stream) + conn=conn->next_stream) { if (conn->cpath_layer == layer_hint) connection_stop_reading(TO_CONN(conn)); + } return 1; } return 0; diff --git a/src/or/rendclient.c b/src/or/rendclient.c index 413d9b7..6fe9ba2 100644 --- a/src/or/rendclient.c +++ b/src/or/rendclient.c @@ -824,40 +824,42 @@ rend_client_receive_rendezvous(origin_circuit_t *circ, const uint8_t *request, void rend_client_desc_trynow(const char *query) { - edge_connection_t *conn; + entry_connection_t *conn; rend_cache_entry_t *entry; + const rend_data_t *rend_data; time_t now = time(NULL);

smartlist_t *conns = get_connection_array(); - SMARTLIST_FOREACH_BEGIN(conns, connection_t *, _conn) { - if (_conn->type != CONN_TYPE_AP || - _conn->state != AP_CONN_STATE_RENDDESC_WAIT || - _conn->marked_for_close) + SMARTLIST_FOREACH_BEGIN(conns, connection_t *, base_conn) { + if (base_conn->type != CONN_TYPE_AP || + base_conn->state != AP_CONN_STATE_RENDDESC_WAIT || + base_conn->marked_for_close) continue; - conn = TO_EDGE_CONN(_conn); - if (!conn->rend_data) + conn = TO_ENTRY_CONN(base_conn); + rend_data = ENTRY_TO_EDGE_CONN(conn)->rend_data; + if (!rend_data) continue; - if (rend_cmp_service_ids(query, conn->rend_data->onion_address)) + if (rend_cmp_service_ids(query, rend_data->onion_address)) continue; - assert_connection_ok(TO_CONN(conn), now); - if (rend_cache_lookup_entry(conn->rend_data->onion_address, -1, + assert_connection_ok(base_conn, now); + if (rend_cache_lookup_entry(rend_data->onion_address, -1, &entry) == 1 && rend_client_any_intro_points_usable(entry)) { /* either this fetch worked, or it failed but there was a * valid entry from before which we should reuse */ log_info(LD_REND,"Rend desc is usable. Launching circuits."); - conn->_base.state = AP_CONN_STATE_CIRCUIT_WAIT; + base_conn->state = AP_CONN_STATE_CIRCUIT_WAIT;

/* restart their timeout values, so they get a fair shake at * connecting to the hidden service. */ - conn->_base.timestamp_created = now; - conn->_base.timestamp_lastread = now; - conn->_base.timestamp_lastwritten = now; + base_conn->timestamp_created = now; + base_conn->timestamp_lastread = now; + base_conn->timestamp_lastwritten = now;

if (connection_ap_handshake_attach_circuit(conn) < 0) { /* it will never work */ log_warn(LD_REND,"Rendezvous attempt failed. Closing."); - if (!conn->_base.marked_for_close) + if (!base_conn->marked_for_close) connection_mark_unattached_ap(conn, END_STREAM_REASON_CANT_ATTACH); } } else { /* 404, or fetch didn't get that far */ @@ -866,7 +868,7 @@ rend_client_desc_trynow(const char *query) safe_str_client(query)); connection_mark_unattached_ap(conn, END_STREAM_REASON_RESOLVEFAILED); } - } SMARTLIST_FOREACH_END(_conn); + } SMARTLIST_FOREACH_END(base_conn); }

/** Return a newly allocated extend_info_t* for a randomly chosen introduction