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Use channel_t rather than or_connection_t for circuits
This commit is contained in:
parent
15303c32ec
commit
32337502f1
@ -12,9 +12,11 @@
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#define CIRCUIT_PRIVATE
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#include "or.h"
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#include "channel.h"
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#include "circuitbuild.h"
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#include "circuitlist.h"
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#include "circuituse.h"
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#include "command.h"
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#include "config.h"
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#include "confparse.h"
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#include "connection.h"
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@ -125,6 +127,9 @@ static int unit_tests = 0;
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/********* END VARIABLES ************/
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static channel_t * channel_connect_for_circuit(const tor_addr_t *addr,
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uint16_t port,
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const char *id_digest);
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static int circuit_deliver_create_cell(circuit_t *circ,
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uint8_t cell_type, const char *payload);
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static int onion_pick_cpath_exit(origin_circuit_t *circ, extend_info_t *exit);
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@ -141,6 +146,22 @@ static void bridge_free(bridge_info_t *bridge);
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static int entry_guard_inc_first_hop_count(entry_guard_t *guard);
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static void pathbias_count_success(origin_circuit_t *circ);
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/** This function tries to get a channel to the specified endpoint,
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* and then calls command_setup_channel() to give it the right
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* callbacks.
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*/
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static channel_t *
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channel_connect_for_circuit(const tor_addr_t *addr, uint16_t port,
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const char *id_digest)
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{
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channel_t *chan;
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chan = channel_connect(addr, port, id_digest);
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if (chan) command_setup_channel(chan);
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return chan;
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}
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/**
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* This function decides if CBT learning should be disabled. It returns
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* true if one or more of the following four conditions are met:
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@ -1683,26 +1704,30 @@ circuit_build_times_set_timeout(circuit_build_times_t *cbt)
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* Return it, or 0 if can't get a unique circ_id.
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*/
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static circid_t
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get_unique_circ_id_by_conn(or_connection_t *conn)
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get_unique_circ_id_by_chan(channel_t *chan)
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{
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circid_t test_circ_id;
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circid_t attempts=0;
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circid_t high_bit;
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tor_assert(conn);
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if (conn->circ_id_type == CIRC_ID_TYPE_NEITHER) {
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log_warn(LD_BUG, "Trying to pick a circuit ID for a connection from "
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tor_assert(chan);
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tor_assert(!(chan->is_listener));
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if (chan->u.cell_chan.circ_id_type == CIRC_ID_TYPE_NEITHER) {
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log_warn(LD_BUG,
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"Trying to pick a circuit ID for a connection from "
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"a client with no identity.");
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return 0;
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}
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high_bit = (conn->circ_id_type == CIRC_ID_TYPE_HIGHER) ? 1<<15 : 0;
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high_bit =
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(chan->u.cell_chan.circ_id_type == CIRC_ID_TYPE_HIGHER) ? 1<<15 : 0;
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do {
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/* Sequentially iterate over test_circ_id=1...1<<15-1 until we find a
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* circID such that (high_bit|test_circ_id) is not already used. */
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test_circ_id = conn->next_circ_id++;
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test_circ_id = chan->u.cell_chan.next_circ_id++;
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if (test_circ_id == 0 || test_circ_id >= 1<<15) {
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test_circ_id = 1;
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conn->next_circ_id = 2;
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chan->u.cell_chan.next_circ_id = 2;
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}
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if (++attempts > 1<<15) {
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/* Make sure we don't loop forever if all circ_id's are used. This
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@ -1712,7 +1737,7 @@ get_unique_circ_id_by_conn(or_connection_t *conn)
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return 0;
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}
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test_circ_id |= high_bit;
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} while (circuit_id_in_use_on_orconn(test_circ_id, conn));
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} while (circuit_id_in_use_on_channel(test_circ_id, chan));
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return test_circ_id;
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}
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@ -1891,9 +1916,9 @@ onion_populate_cpath(origin_circuit_t *circ)
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origin_circuit_t *
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origin_circuit_init(uint8_t purpose, int flags)
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{
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/* sets circ->p_circ_id and circ->p_conn */
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/* sets circ->p_circ_id and circ->p_chan */
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origin_circuit_t *circ = origin_circuit_new();
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circuit_set_state(TO_CIRCUIT(circ), CIRCUIT_STATE_OR_WAIT);
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circuit_set_state(TO_CIRCUIT(circ), CIRCUIT_STATE_CHAN_WAIT);
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circ->build_state = tor_malloc_zero(sizeof(cpath_build_state_t));
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circ->build_state->onehop_tunnel =
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((flags & CIRCLAUNCH_ONEHOP_TUNNEL) ? 1 : 0);
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@ -1945,7 +1970,7 @@ int
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circuit_handle_first_hop(origin_circuit_t *circ)
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{
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crypt_path_t *firsthop;
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or_connection_t *n_conn;
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channel_t *n_chan;
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int err_reason = 0;
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const char *msg = NULL;
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int should_launch = 0;
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@ -1959,12 +1984,12 @@ circuit_handle_first_hop(origin_circuit_t *circ)
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fmt_addr(&firsthop->extend_info->addr),
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firsthop->extend_info->port);
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n_conn = connection_or_get_for_extend(firsthop->extend_info->identity_digest,
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n_chan = channel_get_for_extend(firsthop->extend_info->identity_digest,
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&firsthop->extend_info->addr,
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&msg,
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&should_launch);
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if (!n_conn) {
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if (!n_chan) {
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/* not currently connected in a useful way. */
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log_info(LD_CIRC, "Next router is %s: %s",
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safe_str_client(extend_info_describe(firsthop->extend_info)),
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@ -1974,10 +1999,11 @@ circuit_handle_first_hop(origin_circuit_t *circ)
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if (should_launch) {
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if (circ->build_state->onehop_tunnel)
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control_event_bootstrap(BOOTSTRAP_STATUS_CONN_DIR, 0);
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n_conn = connection_or_connect(&firsthop->extend_info->addr,
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n_chan = channel_connect_for_circuit(
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&firsthop->extend_info->addr,
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firsthop->extend_info->port,
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firsthop->extend_info->identity_digest);
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if (!n_conn) { /* connect failed, forget the whole thing */
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if (!n_chan) { /* connect failed, forget the whole thing */
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log_info(LD_CIRC,"connect to firsthop failed. Closing.");
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return -END_CIRC_REASON_CONNECTFAILED;
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}
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@ -1985,13 +2011,13 @@ circuit_handle_first_hop(origin_circuit_t *circ)
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log_debug(LD_CIRC,"connecting in progress (or finished). Good.");
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/* return success. The onion/circuit/etc will be taken care of
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* automatically (may already have been) whenever n_conn reaches
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* automatically (may already have been) whenever n_chan reaches
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* OR_CONN_STATE_OPEN.
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*/
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return 0;
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} else { /* it's already open. use it. */
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tor_assert(!circ->_base.n_hop);
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circ->_base.n_conn = n_conn;
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circ->_base.n_chan = n_chan;
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log_debug(LD_CIRC,"Conn open. Delivering first onion skin.");
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if ((err_reason = circuit_send_next_onion_skin(circ)) < 0) {
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log_info(LD_CIRC,"circuit_send_next_onion_skin failed.");
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@ -2007,48 +2033,51 @@ circuit_handle_first_hop(origin_circuit_t *circ)
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* Status is 1 if connect succeeded, or 0 if connect failed.
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*/
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void
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circuit_n_conn_done(or_connection_t *or_conn, int status)
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circuit_n_chan_done(channel_t *chan, int status)
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{
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smartlist_t *pending_circs;
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int err_reason = 0;
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log_debug(LD_CIRC,"or_conn to %s/%s, status=%d",
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or_conn->nickname ? or_conn->nickname : "NULL",
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or_conn->_base.address, status);
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tor_assert(chan);
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tor_assert(!(chan->is_listener));
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log_debug(LD_CIRC,"chan to %s/%s, status=%d",
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chan->u.cell_chan.nickname ?
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chan->u.cell_chan.nickname : "NULL",
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channel_get_canonical_remote_descr(chan), status);
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pending_circs = smartlist_new();
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circuit_get_all_pending_on_or_conn(pending_circs, or_conn);
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circuit_get_all_pending_on_channel(pending_circs, chan);
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SMARTLIST_FOREACH_BEGIN(pending_circs, circuit_t *, circ)
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{
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/* These checks are redundant wrt get_all_pending_on_or_conn, but I'm
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* leaving them in in case it's possible for the status of a circuit to
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* change as we're going down the list. */
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if (circ->marked_for_close || circ->n_conn || !circ->n_hop ||
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circ->state != CIRCUIT_STATE_OR_WAIT)
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if (circ->marked_for_close || circ->n_chan || !circ->n_hop ||
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circ->state != CIRCUIT_STATE_CHAN_WAIT)
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continue;
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if (tor_digest_is_zero(circ->n_hop->identity_digest)) {
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/* Look at addr/port. This is an unkeyed connection. */
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if (!tor_addr_eq(&circ->n_hop->addr, &or_conn->_base.addr) ||
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circ->n_hop->port != or_conn->_base.port)
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if (!channel_matches_extend_info(chan, circ->n_hop))
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continue;
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} else {
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/* We expected a key. See if it's the right one. */
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if (tor_memneq(or_conn->identity_digest,
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if (tor_memneq(chan->u.cell_chan.identity_digest,
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circ->n_hop->identity_digest, DIGEST_LEN))
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continue;
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}
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if (!status) { /* or_conn failed; close circ */
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log_info(LD_CIRC,"or_conn failed. Closing circ.");
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circuit_mark_for_close(circ, END_CIRC_REASON_OR_CONN_CLOSED);
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if (!status) { /* chan failed; close circ */
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log_info(LD_CIRC,"Channel failed; closing circ.");
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circuit_mark_for_close(circ, END_CIRC_REASON_CHANNEL_CLOSED);
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continue;
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}
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log_debug(LD_CIRC, "Found circ, sending create cell.");
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/* circuit_deliver_create_cell will set n_circ_id and add us to
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* orconn_circuid_circuit_map, so we don't need to call
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* set_circid_orconn here. */
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circ->n_conn = or_conn;
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* chan_circuid_circuit_map, so we don't need to call
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* set_circid_chan here. */
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circ->n_chan = chan;
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extend_info_free(circ->n_hop);
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circ->n_hop = NULL;
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@ -2064,13 +2093,13 @@ circuit_n_conn_done(or_connection_t *or_conn, int status)
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}
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} else {
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/* pull the create cell out of circ->onionskin, and send it */
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tor_assert(circ->n_conn_onionskin);
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tor_assert(circ->n_chan_onionskin);
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if (circuit_deliver_create_cell(circ,CELL_CREATE,
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circ->n_conn_onionskin)<0) {
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circ->n_chan_onionskin)<0) {
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circuit_mark_for_close(circ, END_CIRC_REASON_RESOURCELIMIT);
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continue;
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}
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tor_free(circ->n_conn_onionskin);
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tor_free(circ->n_chan_onionskin);
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circuit_set_state(circ, CIRCUIT_STATE_OPEN);
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}
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}
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@ -2079,7 +2108,7 @@ circuit_n_conn_done(or_connection_t *or_conn, int status)
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smartlist_free(pending_circs);
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}
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/** Find a new circid that isn't currently in use on the circ->n_conn
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/** Find a new circid that isn't currently in use on the circ->n_chan
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* for the outgoing
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* circuit <b>circ</b>, and deliver a cell of type <b>cell_type</b>
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* (either CELL_CREATE or CELL_CREATE_FAST) with payload <b>payload</b>
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@ -2094,29 +2123,29 @@ circuit_deliver_create_cell(circuit_t *circ, uint8_t cell_type,
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circid_t id;
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tor_assert(circ);
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tor_assert(circ->n_conn);
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tor_assert(circ->n_chan);
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tor_assert(payload);
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tor_assert(cell_type == CELL_CREATE || cell_type == CELL_CREATE_FAST);
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id = get_unique_circ_id_by_conn(circ->n_conn);
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id = get_unique_circ_id_by_chan(circ->n_chan);
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if (!id) {
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log_warn(LD_CIRC,"failed to get unique circID.");
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return -1;
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}
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log_debug(LD_CIRC,"Chosen circID %u.", id);
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circuit_set_n_circid_orconn(circ, id, circ->n_conn);
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circuit_set_n_circid_chan(circ, id, circ->n_chan);
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memset(&cell, 0, sizeof(cell_t));
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cell.command = cell_type;
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cell.circ_id = circ->n_circ_id;
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memcpy(cell.payload, payload, ONIONSKIN_CHALLENGE_LEN);
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append_cell_to_circuit_queue(circ, circ->n_conn, &cell,
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append_cell_to_circuit_queue(circ, circ->n_chan, &cell,
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CELL_DIRECTION_OUT, 0);
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if (CIRCUIT_IS_ORIGIN(circ)) {
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/* mark it so it gets better rate limiting treatment. */
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circ->n_conn->client_used = time(NULL);
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channel_timestamp_client(circ->n_chan);
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}
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return 0;
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@ -2218,7 +2247,8 @@ circuit_send_next_onion_skin(origin_circuit_t *circ)
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else
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control_event_bootstrap(BOOTSTRAP_STATUS_CIRCUIT_CREATE, 0);
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node = node_get_by_id(circ->_base.n_conn->identity_digest);
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tor_assert(!(circ->_base.n_chan->is_listener));
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node = node_get_by_id(circ->_base.n_chan->u.cell_chan.identity_digest);
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fast = should_use_create_fast_for_circuit(circ);
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if (!fast) {
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/* We are an OR and we know the right onion key: we should
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@ -2386,7 +2416,7 @@ circuit_note_clock_jumped(int seconds_elapsed)
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int
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circuit_extend(cell_t *cell, circuit_t *circ)
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{
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or_connection_t *n_conn;
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channel_t *n_chan;
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relay_header_t rh;
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char *onionskin;
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char *id_digest=NULL;
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@ -2396,9 +2426,9 @@ circuit_extend(cell_t *cell, circuit_t *circ)
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const char *msg = NULL;
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int should_launch = 0;
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if (circ->n_conn) {
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if (circ->n_chan) {
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log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL,
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"n_conn already set. Bug/attack. Closing.");
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"n_chan already set. Bug/attack. Closing.");
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return -1;
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}
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if (circ->n_hop) {
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@ -2457,19 +2487,22 @@ circuit_extend(cell_t *cell, circuit_t *circ)
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/* Next, check if we're being asked to connect to the hop that the
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* extend cell came from. There isn't any reason for that, and it can
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* assist circular-path attacks. */
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if (tor_memeq(id_digest, TO_OR_CIRCUIT(circ)->p_conn->identity_digest,
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tor_assert(!(TO_OR_CIRCUIT(circ)->p_chan->is_listener));
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if (tor_memeq(id_digest,
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TO_OR_CIRCUIT(circ)->p_chan->
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u.cell_chan.identity_digest,
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DIGEST_LEN)) {
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log_fn(LOG_PROTOCOL_WARN, LD_PROTOCOL,
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"Client asked me to extend back to the previous hop.");
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return -1;
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}
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n_conn = connection_or_get_for_extend(id_digest,
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n_chan = channel_get_for_extend(id_digest,
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&n_addr,
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&msg,
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&should_launch);
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if (!n_conn) {
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if (!n_chan) {
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log_debug(LD_CIRC|LD_OR,"Next router (%s:%d): %s",
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fmt_addr(&n_addr), (int)n_port, msg?msg:"????");
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@ -2478,31 +2511,32 @@ circuit_extend(cell_t *cell, circuit_t *circ)
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NULL /*onion_key*/,
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&n_addr, n_port);
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circ->n_conn_onionskin = tor_malloc(ONIONSKIN_CHALLENGE_LEN);
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memcpy(circ->n_conn_onionskin, onionskin, ONIONSKIN_CHALLENGE_LEN);
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circuit_set_state(circ, CIRCUIT_STATE_OR_WAIT);
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circ->n_chan_onionskin = tor_malloc(ONIONSKIN_CHALLENGE_LEN);
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memcpy(circ->n_chan_onionskin, onionskin, ONIONSKIN_CHALLENGE_LEN);
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circuit_set_state(circ, CIRCUIT_STATE_CHAN_WAIT);
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if (should_launch) {
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/* we should try to open a connection */
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n_conn = connection_or_connect(&n_addr, n_port, id_digest);
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if (!n_conn) {
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log_info(LD_CIRC,"Launching n_conn failed. Closing circuit.");
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n_chan = channel_connect_for_circuit(&n_addr, n_port, id_digest);
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if (!n_chan) {
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log_info(LD_CIRC,"Launching n_chan failed. Closing circuit.");
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circuit_mark_for_close(circ, END_CIRC_REASON_CONNECTFAILED);
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return 0;
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}
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log_debug(LD_CIRC,"connecting in progress (or finished). Good.");
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}
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/* return success. The onion/circuit/etc will be taken care of
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* automatically (may already have been) whenever n_conn reaches
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* automatically (may already have been) whenever n_chan reaches
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* OR_CONN_STATE_OPEN.
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*/
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return 0;
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}
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tor_assert(!circ->n_hop); /* Connection is already established. */
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circ->n_conn = n_conn;
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log_debug(LD_CIRC,"n_conn is %s:%u",
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n_conn->_base.address,n_conn->_base.port);
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circ->n_chan = n_chan;
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log_debug(LD_CIRC,
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"n_chan is %s",
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channel_get_canonical_remote_descr(n_chan));
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if (circuit_deliver_create_cell(circ, CELL_CREATE, onionskin) < 0)
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return -1;
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@ -2699,8 +2733,9 @@ pathbias_count_first_hop(origin_circuit_t *circ)
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if (!circ->has_opened) {
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entry_guard_t *guard;
|
||||
|
||||
tor_assert(!(circ->_base.n_chan->is_listener));
|
||||
guard = entry_guard_get_by_id_digest(
|
||||
circ->_base.n_conn->identity_digest);
|
||||
circ->_base.n_chan->u.cell_chan.identity_digest);
|
||||
if (guard) {
|
||||
if (circ->path_state == PATH_STATE_NEW_CIRC) {
|
||||
circ->path_state = PATH_STATE_DID_FIRST_HOP;
|
||||
@ -2770,6 +2805,7 @@ pathbias_count_success(origin_circuit_t *circ)
|
||||
static ratelim_t success_notice_limit =
|
||||
RATELIM_INIT(SUCCESS_NOTICE_INTERVAL);
|
||||
char *rate_msg = NULL;
|
||||
entry_guard_t *guard = NULL;
|
||||
|
||||
/* We can't do path bias accounting without entry guards.
|
||||
* Testing and controller circuits also have no guards. */
|
||||
@ -2804,8 +2840,10 @@ pathbias_count_success(origin_circuit_t *circ)
|
||||
|
||||
/* Don't count cannibalized/reused circs for path bias */
|
||||
if (!circ->has_opened) {
|
||||
entry_guard_t *guard =
|
||||
entry_guard_get_by_id_digest(circ->_base.n_conn->identity_digest);
|
||||
tor_assert(!(circ->_base.n_chan->is_listener));
|
||||
guard =
|
||||
entry_guard_get_by_id_digest(circ->_base.n_chan->
|
||||
u.cell_chan.identity_digest);
|
||||
|
||||
if (guard) {
|
||||
if (circ->path_state == PATH_STATE_DID_FIRST_HOP) {
|
||||
@ -3021,7 +3059,7 @@ circuit_truncated(origin_circuit_t *circ, crypt_path_t *layer, int reason)
|
||||
* just give up.
|
||||
*/
|
||||
circuit_mark_for_close(TO_CIRCUIT(circ),
|
||||
END_CIRC_REASON_FLAG_REMOTE|reason);
|
||||
END_CIRC_REASON_FLAG_REMOTE|END_CIRC_REASON_CHANNEL_CLOSED|reason);
|
||||
return 0;
|
||||
|
||||
#if 0
|
||||
@ -3095,12 +3133,12 @@ onionskin_answer(or_circuit_t *circ, uint8_t cell_type, const char *payload,
|
||||
circ->is_first_hop = (cell_type == CELL_CREATED_FAST);
|
||||
|
||||
append_cell_to_circuit_queue(TO_CIRCUIT(circ),
|
||||
circ->p_conn, &cell, CELL_DIRECTION_IN, 0);
|
||||
circ->p_chan, &cell, CELL_DIRECTION_IN, 0);
|
||||
log_debug(LD_CIRC,"Finished sending '%s' cell.",
|
||||
circ->is_first_hop ? "created_fast" : "created");
|
||||
|
||||
if (!is_local_addr(&circ->p_conn->_base.addr) &&
|
||||
!connection_or_nonopen_was_started_here(circ->p_conn)) {
|
||||
if (!channel_is_local(circ->p_chan) &&
|
||||
!channel_is_outgoing(circ->p_chan)) {
|
||||
/* record that we could process create cells from a non-local conn
|
||||
* that we didn't initiate; presumably this means that create cells
|
||||
* can reach us too. */
|
||||
|
@ -22,7 +22,7 @@ origin_circuit_t *circuit_establish_circuit(uint8_t purpose,
|
||||
extend_info_t *exit,
|
||||
int flags);
|
||||
int circuit_handle_first_hop(origin_circuit_t *circ);
|
||||
void circuit_n_conn_done(or_connection_t *or_conn, int status);
|
||||
void circuit_n_chan_done(channel_t *chan, int status);
|
||||
int inform_testing_reachability(void);
|
||||
int circuit_timeout_want_to_count_circ(origin_circuit_t *circ);
|
||||
int circuit_send_next_onion_skin(origin_circuit_t *circ);
|
||||
|
@ -10,6 +10,7 @@
|
||||
**/
|
||||
|
||||
#include "or.h"
|
||||
#include "channel.h"
|
||||
#include "circuitbuild.h"
|
||||
#include "circuitlist.h"
|
||||
#include "circuituse.h"
|
||||
@ -34,8 +35,8 @@
|
||||
/** A global list of all circuits at this hop. */
|
||||
circuit_t *global_circuitlist=NULL;
|
||||
|
||||
/** A list of all the circuits in CIRCUIT_STATE_OR_WAIT. */
|
||||
static smartlist_t *circuits_pending_or_conns=NULL;
|
||||
/** A list of all the circuits in CIRCUIT_STATE_CHAN_WAIT. */
|
||||
static smartlist_t *circuits_pending_chans = NULL;
|
||||
|
||||
static void circuit_free(circuit_t *circ);
|
||||
static void circuit_free_cpath(crypt_path_t *cpath);
|
||||
@ -44,154 +45,156 @@ static void cpath_ref_decref(crypt_path_reference_t *cpath_ref);
|
||||
|
||||
/********* END VARIABLES ************/
|
||||
|
||||
/** A map from OR connection and circuit ID to circuit. (Lookup performance is
|
||||
/** A map from channel and circuit ID to circuit. (Lookup performance is
|
||||
* very important here, since we need to do it every time a cell arrives.) */
|
||||
typedef struct orconn_circid_circuit_map_t {
|
||||
HT_ENTRY(orconn_circid_circuit_map_t) node;
|
||||
or_connection_t *or_conn;
|
||||
typedef struct chan_circid_circuit_map_t {
|
||||
HT_ENTRY(chan_circid_circuit_map_t) node;
|
||||
channel_t *chan;
|
||||
circid_t circ_id;
|
||||
circuit_t *circuit;
|
||||
} orconn_circid_circuit_map_t;
|
||||
} chan_circid_circuit_map_t;
|
||||
|
||||
/** Helper for hash tables: compare the OR connection and circuit ID for a and
|
||||
/** Helper for hash tables: compare the channel and circuit ID for a and
|
||||
* b, and return less than, equal to, or greater than zero appropriately.
|
||||
*/
|
||||
static INLINE int
|
||||
_orconn_circid_entries_eq(orconn_circid_circuit_map_t *a,
|
||||
orconn_circid_circuit_map_t *b)
|
||||
_chan_circid_entries_eq(chan_circid_circuit_map_t *a,
|
||||
chan_circid_circuit_map_t *b)
|
||||
{
|
||||
return a->or_conn == b->or_conn && a->circ_id == b->circ_id;
|
||||
return a->chan == b->chan && a->circ_id == b->circ_id;
|
||||
}
|
||||
|
||||
/** Helper: return a hash based on circuit ID and the pointer value of
|
||||
* or_conn in <b>a</b>. */
|
||||
* chan in <b>a</b>. */
|
||||
static INLINE unsigned int
|
||||
_orconn_circid_entry_hash(orconn_circid_circuit_map_t *a)
|
||||
_chan_circid_entry_hash(chan_circid_circuit_map_t *a)
|
||||
{
|
||||
return (((unsigned)a->circ_id)<<8) ^ (unsigned)(uintptr_t)(a->or_conn);
|
||||
return (((unsigned)a->circ_id)<<8) ^ (unsigned)(uintptr_t)(a->chan);
|
||||
}
|
||||
|
||||
/** Map from [orconn,circid] to circuit. */
|
||||
static HT_HEAD(orconn_circid_map, orconn_circid_circuit_map_t)
|
||||
orconn_circid_circuit_map = HT_INITIALIZER();
|
||||
HT_PROTOTYPE(orconn_circid_map, orconn_circid_circuit_map_t, node,
|
||||
_orconn_circid_entry_hash, _orconn_circid_entries_eq)
|
||||
HT_GENERATE(orconn_circid_map, orconn_circid_circuit_map_t, node,
|
||||
_orconn_circid_entry_hash, _orconn_circid_entries_eq, 0.6,
|
||||
/** Map from [chan,circid] to circuit. */
|
||||
static HT_HEAD(chan_circid_map, chan_circid_circuit_map_t)
|
||||
chan_circid_map = HT_INITIALIZER();
|
||||
HT_PROTOTYPE(chan_circid_map, chan_circid_circuit_map_t, node,
|
||||
_chan_circid_entry_hash, _chan_circid_entries_eq)
|
||||
HT_GENERATE(chan_circid_map, chan_circid_circuit_map_t, node,
|
||||
_chan_circid_entry_hash, _chan_circid_entries_eq, 0.6,
|
||||
malloc, realloc, free)
|
||||
|
||||
/** The most recently returned entry from circuit_get_by_circid_orconn;
|
||||
/** The most recently returned entry from circuit_get_by_circid_chan;
|
||||
* used to improve performance when many cells arrive in a row from the
|
||||
* same circuit.
|
||||
*/
|
||||
orconn_circid_circuit_map_t *_last_circid_orconn_ent = NULL;
|
||||
chan_circid_circuit_map_t *_last_circid_chan_ent = NULL;
|
||||
|
||||
/** Implementation helper for circuit_set_{p,n}_circid_orconn: A circuit ID
|
||||
* and/or or_connection for circ has just changed from <b>old_conn, old_id</b>
|
||||
* to <b>conn, id</b>. Adjust the conn,circid map as appropriate, removing
|
||||
/** Implementation helper for circuit_set_{p,n}_circid_channel: A circuit ID
|
||||
* and/or channel for circ has just changed from <b>old_chan, old_id</b>
|
||||
* to <b>chan, id</b>. Adjust the chan,circid map as appropriate, removing
|
||||
* the old entry (if any) and adding a new one. */
|
||||
static void
|
||||
circuit_set_circid_orconn_helper(circuit_t *circ, int direction,
|
||||
circuit_set_circid_chan_helper(circuit_t *circ, int direction,
|
||||
circid_t id,
|
||||
or_connection_t *conn)
|
||||
channel_t *chan)
|
||||
{
|
||||
orconn_circid_circuit_map_t search;
|
||||
orconn_circid_circuit_map_t *found;
|
||||
or_connection_t *old_conn, **conn_ptr;
|
||||
chan_circid_circuit_map_t search;
|
||||
chan_circid_circuit_map_t *found;
|
||||
channel_t *old_chan, **chan_ptr;
|
||||
circid_t old_id, *circid_ptr;
|
||||
int was_active, make_active;
|
||||
|
||||
if (chan) tor_assert(!(chan->is_listener));
|
||||
|
||||
if (direction == CELL_DIRECTION_OUT) {
|
||||
conn_ptr = &circ->n_conn;
|
||||
chan_ptr = &circ->n_chan;
|
||||
circid_ptr = &circ->n_circ_id;
|
||||
was_active = circ->next_active_on_n_conn != NULL;
|
||||
make_active = circ->n_conn_cells.n > 0;
|
||||
was_active = circ->next_active_on_n_chan != NULL;
|
||||
make_active = circ->n_chan_cells.n > 0;
|
||||
} else {
|
||||
or_circuit_t *c = TO_OR_CIRCUIT(circ);
|
||||
conn_ptr = &c->p_conn;
|
||||
chan_ptr = &c->p_chan;
|
||||
circid_ptr = &c->p_circ_id;
|
||||
was_active = c->next_active_on_p_conn != NULL;
|
||||
make_active = c->p_conn_cells.n > 0;
|
||||
was_active = c->next_active_on_p_chan != NULL;
|
||||
make_active = c->p_chan_cells.n > 0;
|
||||
}
|
||||
old_conn = *conn_ptr;
|
||||
old_chan = *chan_ptr;
|
||||
old_id = *circid_ptr;
|
||||
|
||||
if (id == old_id && conn == old_conn)
|
||||
if (id == old_id && chan == old_chan)
|
||||
return;
|
||||
|
||||
if (_last_circid_orconn_ent &&
|
||||
((old_id == _last_circid_orconn_ent->circ_id &&
|
||||
old_conn == _last_circid_orconn_ent->or_conn) ||
|
||||
(id == _last_circid_orconn_ent->circ_id &&
|
||||
conn == _last_circid_orconn_ent->or_conn))) {
|
||||
_last_circid_orconn_ent = NULL;
|
||||
if (_last_circid_chan_ent &&
|
||||
((old_id == _last_circid_chan_ent->circ_id &&
|
||||
old_chan == _last_circid_chan_ent->chan) ||
|
||||
(id == _last_circid_chan_ent->circ_id &&
|
||||
chan == _last_circid_chan_ent->chan))) {
|
||||
_last_circid_chan_ent = NULL;
|
||||
}
|
||||
|
||||
if (old_conn) { /* we may need to remove it from the conn-circid map */
|
||||
tor_assert(old_conn->_base.magic == OR_CONNECTION_MAGIC);
|
||||
if (old_chan) { /* we may need to remove it from the conn-circid map */
|
||||
tor_assert(!(old_chan->is_listener));
|
||||
search.circ_id = old_id;
|
||||
search.or_conn = old_conn;
|
||||
found = HT_REMOVE(orconn_circid_map, &orconn_circid_circuit_map, &search);
|
||||
search.chan = old_chan;
|
||||
found = HT_REMOVE(chan_circid_map, &chan_circid_map, &search);
|
||||
if (found) {
|
||||
tor_free(found);
|
||||
--old_conn->n_circuits;
|
||||
--old_chan->u.cell_chan.n_circuits;
|
||||
}
|
||||
if (was_active && old_conn != conn)
|
||||
make_circuit_inactive_on_conn(circ,old_conn);
|
||||
if (was_active && old_chan != chan)
|
||||
make_circuit_inactive_on_chan(circ, old_chan);
|
||||
}
|
||||
|
||||
/* Change the values only after we have possibly made the circuit inactive
|
||||
* on the previous conn. */
|
||||
*conn_ptr = conn;
|
||||
* on the previous chan. */
|
||||
*chan_ptr = chan;
|
||||
*circid_ptr = id;
|
||||
|
||||
if (conn == NULL)
|
||||
if (chan == NULL)
|
||||
return;
|
||||
|
||||
/* now add the new one to the conn-circid map */
|
||||
search.circ_id = id;
|
||||
search.or_conn = conn;
|
||||
found = HT_FIND(orconn_circid_map, &orconn_circid_circuit_map, &search);
|
||||
search.chan = chan;
|
||||
found = HT_FIND(chan_circid_map, &chan_circid_map, &search);
|
||||
if (found) {
|
||||
found->circuit = circ;
|
||||
} else {
|
||||
found = tor_malloc_zero(sizeof(orconn_circid_circuit_map_t));
|
||||
found = tor_malloc_zero(sizeof(chan_circid_circuit_map_t));
|
||||
found->circ_id = id;
|
||||
found->or_conn = conn;
|
||||
found->chan = chan;
|
||||
found->circuit = circ;
|
||||
HT_INSERT(orconn_circid_map, &orconn_circid_circuit_map, found);
|
||||
HT_INSERT(chan_circid_map, &chan_circid_map, found);
|
||||
}
|
||||
if (make_active && old_conn != conn)
|
||||
make_circuit_active_on_conn(circ,conn);
|
||||
if (make_active && old_chan != chan)
|
||||
make_circuit_active_on_chan(circ,chan);
|
||||
|
||||
++conn->n_circuits;
|
||||
++chan->u.cell_chan.n_circuits;
|
||||
}
|
||||
|
||||
/** Set the p_conn field of a circuit <b>circ</b>, along
|
||||
* with the corresponding circuit ID, and add the circuit as appropriate
|
||||
* to the (orconn,id)-\>circuit map. */
|
||||
* to the (chan,id)-\>circuit map. */
|
||||
void
|
||||
circuit_set_p_circid_orconn(or_circuit_t *circ, circid_t id,
|
||||
or_connection_t *conn)
|
||||
circuit_set_p_circid_chan(or_circuit_t *circ, circid_t id,
|
||||
channel_t *chan)
|
||||
{
|
||||
circuit_set_circid_orconn_helper(TO_CIRCUIT(circ), CELL_DIRECTION_IN,
|
||||
id, conn);
|
||||
circuit_set_circid_chan_helper(TO_CIRCUIT(circ), CELL_DIRECTION_IN,
|
||||
id, chan);
|
||||
|
||||
if (conn)
|
||||
tor_assert(bool_eq(circ->p_conn_cells.n, circ->next_active_on_p_conn));
|
||||
if (chan)
|
||||
tor_assert(bool_eq(circ->p_chan_cells.n, circ->next_active_on_p_chan));
|
||||
}
|
||||
|
||||
/** Set the n_conn field of a circuit <b>circ</b>, along
|
||||
* with the corresponding circuit ID, and add the circuit as appropriate
|
||||
* to the (orconn,id)-\>circuit map. */
|
||||
* to the (chan,id)-\>circuit map. */
|
||||
void
|
||||
circuit_set_n_circid_orconn(circuit_t *circ, circid_t id,
|
||||
or_connection_t *conn)
|
||||
circuit_set_n_circid_chan(circuit_t *circ, circid_t id,
|
||||
channel_t *chan)
|
||||
{
|
||||
circuit_set_circid_orconn_helper(circ, CELL_DIRECTION_OUT, id, conn);
|
||||
circuit_set_circid_chan_helper(circ, CELL_DIRECTION_OUT, id, chan);
|
||||
|
||||
if (conn)
|
||||
tor_assert(bool_eq(circ->n_conn_cells.n, circ->next_active_on_n_conn));
|
||||
if (chan)
|
||||
tor_assert(bool_eq(circ->n_chan_cells.n, circ->next_active_on_n_chan));
|
||||
}
|
||||
|
||||
/** Change the state of <b>circ</b> to <b>state</b>, adding it to or removing
|
||||
@ -202,18 +205,18 @@ circuit_set_state(circuit_t *circ, uint8_t state)
|
||||
tor_assert(circ);
|
||||
if (state == circ->state)
|
||||
return;
|
||||
if (!circuits_pending_or_conns)
|
||||
circuits_pending_or_conns = smartlist_new();
|
||||
if (circ->state == CIRCUIT_STATE_OR_WAIT) {
|
||||
if (!circuits_pending_chans)
|
||||
circuits_pending_chans = smartlist_new();
|
||||
if (circ->state == CIRCUIT_STATE_CHAN_WAIT) {
|
||||
/* remove from waiting-circuit list. */
|
||||
smartlist_remove(circuits_pending_or_conns, circ);
|
||||
smartlist_remove(circuits_pending_chans, circ);
|
||||
}
|
||||
if (state == CIRCUIT_STATE_OR_WAIT) {
|
||||
if (state == CIRCUIT_STATE_CHAN_WAIT) {
|
||||
/* add to waiting-circuit list. */
|
||||
smartlist_add(circuits_pending_or_conns, circ);
|
||||
smartlist_add(circuits_pending_chans, circ);
|
||||
}
|
||||
if (state == CIRCUIT_STATE_OPEN)
|
||||
tor_assert(!circ->n_conn_onionskin);
|
||||
tor_assert(!circ->n_chan_onionskin);
|
||||
circ->state = state;
|
||||
}
|
||||
|
||||
@ -232,31 +235,31 @@ circuit_add(circuit_t *circ)
|
||||
}
|
||||
}
|
||||
|
||||
/** Append to <b>out</b> all circuits in state OR_WAIT waiting for
|
||||
/** Append to <b>out</b> all circuits in state CHAN_WAIT waiting for
|
||||
* the given connection. */
|
||||
void
|
||||
circuit_get_all_pending_on_or_conn(smartlist_t *out, or_connection_t *or_conn)
|
||||
circuit_get_all_pending_on_channel(smartlist_t *out, channel_t *chan)
|
||||
{
|
||||
tor_assert(out);
|
||||
tor_assert(or_conn);
|
||||
tor_assert(chan);
|
||||
tor_assert(!(chan->is_listener));
|
||||
|
||||
if (!circuits_pending_or_conns)
|
||||
if (!circuits_pending_chans)
|
||||
return;
|
||||
|
||||
SMARTLIST_FOREACH_BEGIN(circuits_pending_or_conns, circuit_t *, circ) {
|
||||
SMARTLIST_FOREACH_BEGIN(circuits_pending_chans, circuit_t *, circ) {
|
||||
if (circ->marked_for_close)
|
||||
continue;
|
||||
if (!circ->n_hop)
|
||||
continue;
|
||||
tor_assert(circ->state == CIRCUIT_STATE_OR_WAIT);
|
||||
tor_assert(circ->state == CIRCUIT_STATE_CHAN_WAIT);
|
||||
if (tor_digest_is_zero(circ->n_hop->identity_digest)) {
|
||||
/* Look at addr/port. This is an unkeyed connection. */
|
||||
if (!tor_addr_eq(&circ->n_hop->addr, &or_conn->_base.addr) ||
|
||||
circ->n_hop->port != or_conn->_base.port)
|
||||
if (!channel_matches_extend_info(chan, circ->n_hop))
|
||||
continue;
|
||||
} else {
|
||||
/* We expected a key. See if it's the right one. */
|
||||
if (tor_memneq(or_conn->identity_digest,
|
||||
if (tor_memneq(chan->u.cell_chan.identity_digest,
|
||||
circ->n_hop->identity_digest, DIGEST_LEN))
|
||||
continue;
|
||||
}
|
||||
@ -264,19 +267,24 @@ circuit_get_all_pending_on_or_conn(smartlist_t *out, or_connection_t *or_conn)
|
||||
} SMARTLIST_FOREACH_END(circ);
|
||||
}
|
||||
|
||||
/** Return the number of circuits in state OR_WAIT, waiting for the given
|
||||
* connection. */
|
||||
/** Return the number of circuits in state CHAN_WAIT, waiting for the given
|
||||
* channel. */
|
||||
int
|
||||
circuit_count_pending_on_or_conn(or_connection_t *or_conn)
|
||||
circuit_count_pending_on_channel(channel_t *chan)
|
||||
{
|
||||
int cnt;
|
||||
smartlist_t *sl = smartlist_new();
|
||||
circuit_get_all_pending_on_or_conn(sl, or_conn);
|
||||
|
||||
tor_assert(chan);
|
||||
tor_assert(!(chan->is_listener));
|
||||
|
||||
circuit_get_all_pending_on_channel(sl, chan);
|
||||
cnt = smartlist_len(sl);
|
||||
smartlist_free(sl);
|
||||
log_debug(LD_CIRC,"or_conn to %s at %s, %d pending circs",
|
||||
or_conn->nickname ? or_conn->nickname : "NULL",
|
||||
or_conn->_base.address,
|
||||
chan->u.cell_chan.nickname ?
|
||||
chan->u.cell_chan.nickname : "NULL",
|
||||
channel_get_canonical_remote_descr(chan),
|
||||
cnt);
|
||||
return cnt;
|
||||
}
|
||||
@ -324,7 +332,7 @@ circuit_state_to_string(int state)
|
||||
switch (state) {
|
||||
case CIRCUIT_STATE_BUILDING: return "doing handshakes";
|
||||
case CIRCUIT_STATE_ONIONSKIN_PENDING: return "processing the onion";
|
||||
case CIRCUIT_STATE_OR_WAIT: return "connecting to server";
|
||||
case CIRCUIT_STATE_CHAN_WAIT: return "connecting to server";
|
||||
case CIRCUIT_STATE_OPEN: return "open";
|
||||
default:
|
||||
log_warn(LD_BUG, "Unknown circuit state %d", state);
|
||||
@ -522,7 +530,7 @@ init_circuit_base(circuit_t *circ)
|
||||
circ->n_cell_ewma.last_adjusted_tick = cell_ewma_get_tick();
|
||||
circ->n_cell_ewma.cell_count = 0.0;
|
||||
circ->n_cell_ewma.heap_index = -1;
|
||||
circ->n_cell_ewma.is_for_p_conn = 0;
|
||||
circ->n_cell_ewma.is_for_p_chan = 0;
|
||||
|
||||
circuit_add(circ);
|
||||
}
|
||||
@ -556,7 +564,7 @@ origin_circuit_new(void)
|
||||
/** Allocate a new or_circuit_t, connected to <b>p_conn</b> as
|
||||
* <b>p_circ_id</b>. If <b>p_conn</b> is NULL, the circuit is unattached. */
|
||||
or_circuit_t *
|
||||
or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn)
|
||||
or_circuit_new(circid_t p_circ_id, channel_t *p_chan)
|
||||
{
|
||||
/* CircIDs */
|
||||
or_circuit_t *circ;
|
||||
@ -564,8 +572,8 @@ or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn)
|
||||
circ = tor_malloc_zero(sizeof(or_circuit_t));
|
||||
circ->_base.magic = OR_CIRCUIT_MAGIC;
|
||||
|
||||
if (p_conn)
|
||||
circuit_set_p_circid_orconn(circ, p_circ_id, p_conn);
|
||||
if (p_chan)
|
||||
circuit_set_p_circid_chan(circ, p_circ_id, p_chan);
|
||||
|
||||
circ->remaining_relay_early_cells = MAX_RELAY_EARLY_CELLS_PER_CIRCUIT;
|
||||
|
||||
@ -576,7 +584,7 @@ or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn)
|
||||
/* Initialize the cell counts to 0 */
|
||||
circ->p_cell_ewma.cell_count = 0.0;
|
||||
circ->p_cell_ewma.last_adjusted_tick = cell_ewma_get_tick();
|
||||
circ->p_cell_ewma.is_for_p_conn = 1;
|
||||
circ->p_cell_ewma.is_for_p_chan = 1;
|
||||
|
||||
/* It's not in any heap yet. */
|
||||
circ->p_cell_ewma.heap_index = -1;
|
||||
@ -641,22 +649,22 @@ circuit_free(circuit_t *circ)
|
||||
}
|
||||
|
||||
/* remove from map. */
|
||||
circuit_set_p_circid_orconn(ocirc, 0, NULL);
|
||||
circuit_set_p_circid_chan(ocirc, 0, NULL);
|
||||
|
||||
/* Clear cell queue _after_ removing it from the map. Otherwise our
|
||||
* "active" checks will be violated. */
|
||||
cell_queue_clear(ô->p_conn_cells);
|
||||
cell_queue_clear(ô->p_chan_cells);
|
||||
}
|
||||
|
||||
extend_info_free(circ->n_hop);
|
||||
tor_free(circ->n_conn_onionskin);
|
||||
tor_free(circ->n_chan_onionskin);
|
||||
|
||||
/* Remove from map. */
|
||||
circuit_set_n_circid_orconn(circ, 0, NULL);
|
||||
circuit_set_n_circid_chan(circ, 0, NULL);
|
||||
|
||||
/* Clear cell queue _after_ removing it from the map. Otherwise our
|
||||
* "active" checks will be violated. */
|
||||
cell_queue_clear(&circ->n_conn_cells);
|
||||
cell_queue_clear(&circ->n_chan_cells);
|
||||
|
||||
memset(mem, 0xAA, memlen); /* poison memory */
|
||||
tor_free(mem);
|
||||
@ -702,10 +710,10 @@ circuit_free_all(void)
|
||||
global_circuitlist = next;
|
||||
}
|
||||
|
||||
smartlist_free(circuits_pending_or_conns);
|
||||
circuits_pending_or_conns = NULL;
|
||||
smartlist_free(circuits_pending_chans);
|
||||
circuits_pending_chans = NULL;
|
||||
|
||||
HT_CLEAR(orconn_circid_map, &orconn_circid_circuit_map);
|
||||
HT_CLEAR(chan_circid_map, &chan_circid_map);
|
||||
}
|
||||
|
||||
/** Deallocate space associated with the cpath node <b>victim</b>. */
|
||||
@ -742,8 +750,12 @@ cpath_ref_decref(crypt_path_reference_t *cpath_ref)
|
||||
* of information about circuit <b>circ</b>.
|
||||
*/
|
||||
static void
|
||||
circuit_dump_details(int severity, circuit_t *circ, int conn_array_index,
|
||||
const char *type, int this_circid, int other_circid)
|
||||
circuit_dump_conn_details(int severity,
|
||||
circuit_t *circ,
|
||||
int conn_array_index,
|
||||
const char *type,
|
||||
int this_circid,
|
||||
int other_circid)
|
||||
{
|
||||
log(severity, LD_CIRC, "Conn %d has %s circuit: circID %d (other side %d), "
|
||||
"state %d (%s), born %ld:",
|
||||
@ -766,44 +778,96 @@ circuit_dump_by_conn(connection_t *conn, int severity)
|
||||
|
||||
for (circ = global_circuitlist; circ; circ = circ->next) {
|
||||
circid_t n_circ_id = circ->n_circ_id, p_circ_id = 0;
|
||||
if (circ->marked_for_close)
|
||||
|
||||
if (circ->marked_for_close) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (! CIRCUIT_IS_ORIGIN(circ))
|
||||
if (!CIRCUIT_IS_ORIGIN(circ)) {
|
||||
p_circ_id = TO_OR_CIRCUIT(circ)->p_circ_id;
|
||||
}
|
||||
|
||||
if (! CIRCUIT_IS_ORIGIN(circ) && TO_OR_CIRCUIT(circ)->p_conn &&
|
||||
TO_CONN(TO_OR_CIRCUIT(circ)->p_conn) == conn)
|
||||
circuit_dump_details(severity, circ, conn->conn_array_index, "App-ward",
|
||||
p_circ_id, n_circ_id);
|
||||
if (CIRCUIT_IS_ORIGIN(circ)) {
|
||||
for (tmpconn=TO_ORIGIN_CIRCUIT(circ)->p_streams; tmpconn;
|
||||
tmpconn=tmpconn->next_stream) {
|
||||
if (TO_CONN(tmpconn) == conn) {
|
||||
circuit_dump_details(severity, circ, conn->conn_array_index,
|
||||
circuit_dump_conn_details(severity, circ, conn->conn_array_index,
|
||||
"App-ward", p_circ_id, n_circ_id);
|
||||
}
|
||||
}
|
||||
}
|
||||
if (circ->n_conn && TO_CONN(circ->n_conn) == conn)
|
||||
circuit_dump_details(severity, circ, conn->conn_array_index, "Exit-ward",
|
||||
n_circ_id, p_circ_id);
|
||||
|
||||
if (! CIRCUIT_IS_ORIGIN(circ)) {
|
||||
for (tmpconn=TO_OR_CIRCUIT(circ)->n_streams; tmpconn;
|
||||
tmpconn=tmpconn->next_stream) {
|
||||
if (TO_CONN(tmpconn) == conn) {
|
||||
circuit_dump_details(severity, circ, conn->conn_array_index,
|
||||
circuit_dump_conn_details(severity, circ, conn->conn_array_index,
|
||||
"Exit-ward", n_circ_id, p_circ_id);
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!circ->n_conn && circ->n_hop &&
|
||||
tor_addr_eq(&circ->n_hop->addr, &conn->addr) &&
|
||||
circ->n_hop->port == conn->port &&
|
||||
conn->type == CONN_TYPE_OR &&
|
||||
tor_memeq(TO_OR_CONN(conn)->identity_digest,
|
||||
}
|
||||
}
|
||||
|
||||
/** A helper function for circuit_dump_by_chan() below. Log a bunch
|
||||
* of information about circuit <b>circ</b>.
|
||||
*/
|
||||
static void
|
||||
circuit_dump_chan_details(int severity,
|
||||
circuit_t *circ,
|
||||
channel_t *chan,
|
||||
const char *type,
|
||||
int this_circid,
|
||||
int other_circid)
|
||||
{
|
||||
log(severity, LD_CIRC, "Conn %p has %s circuit: circID %d (other side %d), "
|
||||
"state %d (%s), born %ld:",
|
||||
chan, type, this_circid, other_circid, circ->state,
|
||||
circuit_state_to_string(circ->state),
|
||||
(long)circ->timestamp_created.tv_sec);
|
||||
if (CIRCUIT_IS_ORIGIN(circ)) { /* circ starts at this node */
|
||||
circuit_log_path(severity, LD_CIRC, TO_ORIGIN_CIRCUIT(circ));
|
||||
}
|
||||
}
|
||||
|
||||
/** Log, at severity <b>severity</b>, information about each circuit
|
||||
* that is connected to <b>chan</b>.
|
||||
*/
|
||||
void
|
||||
circuit_dump_by_chan(channel_t *chan, int severity)
|
||||
{
|
||||
circuit_t *circ;
|
||||
|
||||
tor_assert(chan);
|
||||
tor_assert(!(chan->is_listener));
|
||||
|
||||
for (circ = global_circuitlist; circ; circ = circ->next) {
|
||||
circid_t n_circ_id = circ->n_circ_id, p_circ_id = 0;
|
||||
|
||||
if (circ->marked_for_close) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!CIRCUIT_IS_ORIGIN(circ)) {
|
||||
p_circ_id = TO_OR_CIRCUIT(circ)->p_circ_id;
|
||||
}
|
||||
|
||||
if (! CIRCUIT_IS_ORIGIN(circ) && TO_OR_CIRCUIT(circ)->p_chan &&
|
||||
TO_OR_CIRCUIT(circ)->p_chan == chan) {
|
||||
circuit_dump_chan_details(severity, circ, chan, "App-ward",
|
||||
p_circ_id, n_circ_id);
|
||||
}
|
||||
|
||||
if (circ->n_chan && circ->n_chan == chan) {
|
||||
circuit_dump_chan_details(severity, circ, chan, "Exit-ward",
|
||||
n_circ_id, p_circ_id);
|
||||
}
|
||||
|
||||
if (!circ->n_chan && circ->n_hop &&
|
||||
channel_matches_extend_info(chan, circ->n_hop) &&
|
||||
tor_memeq(chan->u.cell_chan.identity_digest,
|
||||
circ->n_hop->identity_digest, DIGEST_LEN)) {
|
||||
circuit_dump_details(severity, circ, conn->conn_array_index,
|
||||
circuit_dump_chan_details(severity, circ, chan,
|
||||
(circ->state == CIRCUIT_STATE_OPEN &&
|
||||
!CIRCUIT_IS_ORIGIN(circ)) ?
|
||||
"Endpoint" : "Pending",
|
||||
@ -832,27 +896,37 @@ circuit_get_by_global_id(uint32_t id)
|
||||
|
||||
/** Return a circ such that:
|
||||
* - circ-\>n_circ_id or circ-\>p_circ_id is equal to <b>circ_id</b>, and
|
||||
* - circ is attached to <b>conn</b>, either as p_conn or n_conn.
|
||||
* - circ is attached to <b>chan</b>, either as p_chan or n_chan.
|
||||
* Return NULL if no such circuit exists.
|
||||
*/
|
||||
static INLINE circuit_t *
|
||||
circuit_get_by_circid_orconn_impl(circid_t circ_id, or_connection_t *conn)
|
||||
circuit_get_by_circid_channel_impl(circid_t circ_id, channel_t *chan)
|
||||
{
|
||||
orconn_circid_circuit_map_t search;
|
||||
orconn_circid_circuit_map_t *found;
|
||||
chan_circid_circuit_map_t search;
|
||||
chan_circid_circuit_map_t *found;
|
||||
|
||||
if (_last_circid_orconn_ent &&
|
||||
circ_id == _last_circid_orconn_ent->circ_id &&
|
||||
conn == _last_circid_orconn_ent->or_conn) {
|
||||
found = _last_circid_orconn_ent;
|
||||
if (_last_circid_chan_ent &&
|
||||
circ_id == _last_circid_chan_ent->circ_id &&
|
||||
chan == _last_circid_chan_ent->chan) {
|
||||
found = _last_circid_chan_ent;
|
||||
} else {
|
||||
search.circ_id = circ_id;
|
||||
search.or_conn = conn;
|
||||
found = HT_FIND(orconn_circid_map, &orconn_circid_circuit_map, &search);
|
||||
_last_circid_orconn_ent = found;
|
||||
search.chan = chan;
|
||||
found = HT_FIND(chan_circid_map, &chan_circid_map, &search);
|
||||
_last_circid_chan_ent = found;
|
||||
}
|
||||
if (found && found->circuit)
|
||||
if (found && found->circuit) {
|
||||
log_debug(LD_CIRC,
|
||||
"circuit_get_by_circid_channel_impl() returning circuit %p for"
|
||||
" circ_id %d, channel ID %lu (%p)",
|
||||
found->circuit, circ_id, chan->global_identifier, chan);
|
||||
return found->circuit;
|
||||
}
|
||||
|
||||
log_debug(LD_CIRC,
|
||||
"circuit_get_by_circid_channel_impl() found nothing for"
|
||||
" circ_id %d, channel ID %lu (%p)",
|
||||
circ_id, chan->global_identifier, chan);
|
||||
|
||||
return NULL;
|
||||
/* The rest of this checks for bugs. Disabled by default. */
|
||||
@ -862,15 +936,15 @@ circuit_get_by_circid_orconn_impl(circid_t circ_id, or_connection_t *conn)
|
||||
for (circ=global_circuitlist;circ;circ = circ->next) {
|
||||
if (! CIRCUIT_IS_ORIGIN(circ)) {
|
||||
or_circuit_t *or_circ = TO_OR_CIRCUIT(circ);
|
||||
if (or_circ->p_conn == conn && or_circ->p_circ_id == circ_id) {
|
||||
if (or_circ->p_chan == chan && or_circ->p_circ_id == circ_id) {
|
||||
log_warn(LD_BUG,
|
||||
"circuit matches p_conn, but not in hash table (Bug!)");
|
||||
"circuit matches p_chan, but not in hash table (Bug!)");
|
||||
return circ;
|
||||
}
|
||||
}
|
||||
if (circ->n_conn == conn && circ->n_circ_id == circ_id) {
|
||||
if (circ->n_chan == chan && circ->n_circ_id == circ_id) {
|
||||
log_warn(LD_BUG,
|
||||
"circuit matches n_conn, but not in hash table (Bug!)");
|
||||
"circuit matches n_chan, but not in hash table (Bug!)");
|
||||
return circ;
|
||||
}
|
||||
}
|
||||
@ -880,14 +954,14 @@ circuit_get_by_circid_orconn_impl(circid_t circ_id, or_connection_t *conn)
|
||||
|
||||
/** Return a circ such that:
|
||||
* - circ-\>n_circ_id or circ-\>p_circ_id is equal to <b>circ_id</b>, and
|
||||
* - circ is attached to <b>conn</b>, either as p_conn or n_conn.
|
||||
* - circ is attached to <b>chan</b>, either as p_chan or n_chan.
|
||||
* - circ is not marked for close.
|
||||
* Return NULL if no such circuit exists.
|
||||
*/
|
||||
circuit_t *
|
||||
circuit_get_by_circid_orconn(circid_t circ_id, or_connection_t *conn)
|
||||
circuit_get_by_circid_channel(circid_t circ_id, channel_t *chan)
|
||||
{
|
||||
circuit_t *circ = circuit_get_by_circid_orconn_impl(circ_id, conn);
|
||||
circuit_t *circ = circuit_get_by_circid_channel_impl(circ_id, chan);
|
||||
if (!circ || circ->marked_for_close)
|
||||
return NULL;
|
||||
else
|
||||
@ -895,11 +969,11 @@ circuit_get_by_circid_orconn(circid_t circ_id, or_connection_t *conn)
|
||||
}
|
||||
|
||||
/** Return true iff the circuit ID <b>circ_id</b> is currently used by a
|
||||
* circuit, marked or not, on <b>conn</b>. */
|
||||
* circuit, marked or not, on <b>chan</b>. */
|
||||
int
|
||||
circuit_id_in_use_on_orconn(circid_t circ_id, or_connection_t *conn)
|
||||
circuit_id_in_use_on_channel(circid_t circ_id, channel_t *chan)
|
||||
{
|
||||
return circuit_get_by_circid_orconn_impl(circ_id, conn) != NULL;
|
||||
return circuit_get_by_circid_channel_impl(circ_id, chan) != NULL;
|
||||
}
|
||||
|
||||
/** Return the circuit that a given edge connection is using. */
|
||||
@ -916,27 +990,27 @@ circuit_get_by_edge_conn(edge_connection_t *conn)
|
||||
return circ;
|
||||
}
|
||||
|
||||
/** For each circuit that has <b>conn</b> as n_conn or p_conn, unlink the
|
||||
* circuit from the orconn,circid map, and mark it for close if it hasn't
|
||||
/** For each circuit that has <b>chan</b> as n_chan or p_chan, unlink the
|
||||
* circuit from the chan,circid map, and mark it for close if it hasn't
|
||||
* been marked already.
|
||||
*/
|
||||
void
|
||||
circuit_unlink_all_from_or_conn(or_connection_t *conn, int reason)
|
||||
circuit_unlink_all_from_channel(channel_t *chan, int reason)
|
||||
{
|
||||
circuit_t *circ;
|
||||
|
||||
connection_or_unlink_all_active_circs(conn);
|
||||
channel_unlink_all_active_circs(chan);
|
||||
|
||||
for (circ = global_circuitlist; circ; circ = circ->next) {
|
||||
int mark = 0;
|
||||
if (circ->n_conn == conn) {
|
||||
circuit_set_n_circid_orconn(circ, 0, NULL);
|
||||
if (circ->n_chan == chan) {
|
||||
circuit_set_n_circid_chan(circ, 0, NULL);
|
||||
mark = 1;
|
||||
}
|
||||
if (! CIRCUIT_IS_ORIGIN(circ)) {
|
||||
or_circuit_t *or_circ = TO_OR_CIRCUIT(circ);
|
||||
if (or_circ->p_conn == conn) {
|
||||
circuit_set_p_circid_orconn(or_circ, 0, NULL);
|
||||
if (or_circ->p_chan == chan) {
|
||||
circuit_set_p_circid_chan(or_circ, 0, NULL);
|
||||
mark = 1;
|
||||
}
|
||||
}
|
||||
@ -1267,9 +1341,9 @@ _circuit_mark_for_close(circuit_t *circ, int reason, int line,
|
||||
circuit_rep_hist_note_result(ocirc);
|
||||
}
|
||||
}
|
||||
if (circ->state == CIRCUIT_STATE_OR_WAIT) {
|
||||
if (circuits_pending_or_conns)
|
||||
smartlist_remove(circuits_pending_or_conns, circ);
|
||||
if (circ->state == CIRCUIT_STATE_CHAN_WAIT) {
|
||||
if (circuits_pending_chans)
|
||||
smartlist_remove(circuits_pending_chans, circ);
|
||||
}
|
||||
if (CIRCUIT_IS_ORIGIN(circ)) {
|
||||
control_event_circuit_status(TO_ORIGIN_CIRCUIT(circ),
|
||||
@ -1306,9 +1380,9 @@ _circuit_mark_for_close(circuit_t *circ, int reason, int line,
|
||||
INTRO_POINT_FAILURE_UNREACHABLE);
|
||||
}
|
||||
}
|
||||
if (circ->n_conn) {
|
||||
circuit_clear_cell_queue(circ, circ->n_conn);
|
||||
connection_or_send_destroy(circ->n_circ_id, circ->n_conn, reason);
|
||||
if (circ->n_chan) {
|
||||
circuit_clear_cell_queue(circ, circ->n_chan);
|
||||
channel_send_destroy(circ->n_circ_id, circ->n_chan, reason);
|
||||
}
|
||||
|
||||
if (! CIRCUIT_IS_ORIGIN(circ)) {
|
||||
@ -1333,9 +1407,9 @@ _circuit_mark_for_close(circuit_t *circ, int reason, int line,
|
||||
conn->on_circuit = NULL;
|
||||
}
|
||||
|
||||
if (or_circ->p_conn) {
|
||||
circuit_clear_cell_queue(circ, or_circ->p_conn);
|
||||
connection_or_send_destroy(or_circ->p_circ_id, or_circ->p_conn, reason);
|
||||
if (or_circ->p_chan) {
|
||||
circuit_clear_cell_queue(circ, or_circ->p_chan);
|
||||
channel_send_destroy(or_circ->p_circ_id, or_circ->p_chan, reason);
|
||||
}
|
||||
} else {
|
||||
origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
|
||||
@ -1438,22 +1512,22 @@ assert_circuit_ok(const circuit_t *c)
|
||||
or_circ = TO_OR_CIRCUIT(nonconst_circ);
|
||||
}
|
||||
|
||||
if (c->n_conn) {
|
||||
if (c->n_chan) {
|
||||
tor_assert(!c->n_hop);
|
||||
|
||||
if (c->n_circ_id) {
|
||||
/* We use the _impl variant here to make sure we don't fail on marked
|
||||
* circuits, which would not be returned by the regular function. */
|
||||
circuit_t *c2 = circuit_get_by_circid_orconn_impl(c->n_circ_id,
|
||||
c->n_conn);
|
||||
circuit_t *c2 = circuit_get_by_circid_channel_impl(c->n_circ_id,
|
||||
c->n_chan);
|
||||
tor_assert(c == c2);
|
||||
}
|
||||
}
|
||||
if (or_circ && or_circ->p_conn) {
|
||||
if (or_circ && or_circ->p_chan) {
|
||||
if (or_circ->p_circ_id) {
|
||||
/* ibid */
|
||||
circuit_t *c2 = circuit_get_by_circid_orconn_impl(or_circ->p_circ_id,
|
||||
or_circ->p_conn);
|
||||
circuit_t *c2 = circuit_get_by_circid_channel_impl(or_circ->p_circ_id,
|
||||
or_circ->p_chan);
|
||||
tor_assert(c == c2);
|
||||
}
|
||||
}
|
||||
@ -1464,7 +1538,7 @@ assert_circuit_ok(const circuit_t *c)
|
||||
tor_assert(c->deliver_window >= 0);
|
||||
tor_assert(c->package_window >= 0);
|
||||
if (c->state == CIRCUIT_STATE_OPEN) {
|
||||
tor_assert(!c->n_conn_onionskin);
|
||||
tor_assert(!c->n_chan_onionskin);
|
||||
if (or_circ) {
|
||||
tor_assert(or_circ->n_crypto);
|
||||
tor_assert(or_circ->p_crypto);
|
||||
@ -1472,12 +1546,12 @@ assert_circuit_ok(const circuit_t *c)
|
||||
tor_assert(or_circ->p_digest);
|
||||
}
|
||||
}
|
||||
if (c->state == CIRCUIT_STATE_OR_WAIT && !c->marked_for_close) {
|
||||
tor_assert(circuits_pending_or_conns &&
|
||||
smartlist_isin(circuits_pending_or_conns, c));
|
||||
if (c->state == CIRCUIT_STATE_CHAN_WAIT && !c->marked_for_close) {
|
||||
tor_assert(circuits_pending_chans &&
|
||||
smartlist_isin(circuits_pending_chans, c));
|
||||
} else {
|
||||
tor_assert(!circuits_pending_or_conns ||
|
||||
!smartlist_isin(circuits_pending_or_conns, c));
|
||||
tor_assert(!circuits_pending_chans ||
|
||||
!smartlist_isin(circuits_pending_chans, c));
|
||||
}
|
||||
if (origin_circ && origin_circ->cpath) {
|
||||
assert_cpath_ok(origin_circ->cpath);
|
||||
|
@ -18,20 +18,21 @@ const char *circuit_purpose_to_controller_string(uint8_t purpose);
|
||||
const char *circuit_purpose_to_controller_hs_state_string(uint8_t purpose);
|
||||
const char *circuit_purpose_to_string(uint8_t purpose);
|
||||
void circuit_dump_by_conn(connection_t *conn, int severity);
|
||||
void circuit_set_p_circid_orconn(or_circuit_t *circ, circid_t id,
|
||||
or_connection_t *conn);
|
||||
void circuit_set_n_circid_orconn(circuit_t *circ, circid_t id,
|
||||
or_connection_t *conn);
|
||||
void circuit_dump_by_chan(channel_t *chan, int severity);
|
||||
void circuit_set_p_circid_chan(or_circuit_t *circ, circid_t id,
|
||||
channel_t *chan);
|
||||
void circuit_set_n_circid_chan(circuit_t *circ, circid_t id,
|
||||
channel_t *chan);
|
||||
void circuit_set_state(circuit_t *circ, uint8_t state);
|
||||
void circuit_close_all_marked(void);
|
||||
int32_t circuit_initial_package_window(void);
|
||||
origin_circuit_t *origin_circuit_new(void);
|
||||
or_circuit_t *or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn);
|
||||
circuit_t *circuit_get_by_circid_orconn(circid_t circ_id,
|
||||
or_connection_t *conn);
|
||||
int circuit_id_in_use_on_orconn(circid_t circ_id, or_connection_t *conn);
|
||||
or_circuit_t *or_circuit_new(circid_t p_circ_id, channel_t *p_chan);
|
||||
circuit_t *circuit_get_by_circid_channel(circid_t circ_id,
|
||||
channel_t *chan);
|
||||
int circuit_id_in_use_on_channel(circid_t circ_id, channel_t *chan);
|
||||
circuit_t *circuit_get_by_edge_conn(edge_connection_t *conn);
|
||||
void circuit_unlink_all_from_or_conn(or_connection_t *conn, int reason);
|
||||
void circuit_unlink_all_from_channel(channel_t *chan, int reason);
|
||||
origin_circuit_t *circuit_get_by_global_id(uint32_t id);
|
||||
origin_circuit_t *circuit_get_ready_rend_circ_by_rend_data(
|
||||
const rend_data_t *rend_data);
|
||||
@ -47,9 +48,9 @@ void _circuit_mark_for_close(circuit_t *circ, int reason,
|
||||
int line, const char *file);
|
||||
int circuit_get_cpath_len(origin_circuit_t *circ);
|
||||
crypt_path_t *circuit_get_cpath_hop(origin_circuit_t *circ, int hopnum);
|
||||
void circuit_get_all_pending_on_or_conn(smartlist_t *out,
|
||||
or_connection_t *or_conn);
|
||||
int circuit_count_pending_on_or_conn(or_connection_t *or_conn);
|
||||
void circuit_get_all_pending_on_channel(smartlist_t *out,
|
||||
channel_t *chan);
|
||||
int circuit_count_pending_on_channel(channel_t *chan);
|
||||
|
||||
#define circuit_mark_for_close(c, reason) \
|
||||
_circuit_mark_for_close((c), (reason), __LINE__, _SHORT_FILE_)
|
||||
|
@ -10,6 +10,7 @@
|
||||
**/
|
||||
|
||||
#include "or.h"
|
||||
#include "channel.h"
|
||||
#include "circuitbuild.h"
|
||||
#include "circuitlist.h"
|
||||
#include "circuituse.h"
|
||||
@ -53,7 +54,7 @@ circuit_is_acceptable(const origin_circuit_t *origin_circ,
|
||||
tor_assert(conn);
|
||||
tor_assert(conn->socks_request);
|
||||
|
||||
if (must_be_open && (circ->state != CIRCUIT_STATE_OPEN || !circ->n_conn))
|
||||
if (must_be_open && (circ->state != CIRCUIT_STATE_OPEN || !circ->n_chan))
|
||||
return 0; /* ignore non-open circs */
|
||||
if (circ->marked_for_close)
|
||||
return 0;
|
||||
@ -565,9 +566,9 @@ circuit_expire_building(void)
|
||||
continue;
|
||||
}
|
||||
|
||||
if (victim->n_conn)
|
||||
log_info(LD_CIRC,"Abandoning circ %s:%d:%d (state %d:%s, purpose %d)",
|
||||
victim->n_conn->_base.address, victim->n_conn->_base.port,
|
||||
if (victim->n_chan)
|
||||
log_info(LD_CIRC,"Abandoning circ %s:%d (state %d:%s, purpose %d)",
|
||||
channel_get_canonical_remote_descr(victim->n_chan),
|
||||
victim->n_circ_id,
|
||||
victim->state, circuit_state_to_string(victim->state),
|
||||
victim->purpose);
|
||||
@ -977,13 +978,13 @@ circuit_expire_old_circuits_serverside(time_t now)
|
||||
/* If the circuit has been idle for too long, and there are no streams
|
||||
* on it, and it ends here, and it used a create_fast, mark it for close.
|
||||
*/
|
||||
if (or_circ->is_first_hop && !circ->n_conn &&
|
||||
if (or_circ->is_first_hop && !circ->n_chan &&
|
||||
!or_circ->n_streams && !or_circ->resolving_streams &&
|
||||
or_circ->p_conn &&
|
||||
or_circ->p_conn->timestamp_last_added_nonpadding <= cutoff) {
|
||||
or_circ->p_chan &&
|
||||
channel_when_last_xmit(or_circ->p_chan) <= cutoff) {
|
||||
log_info(LD_CIRC, "Closing circ_id %d (empty %d secs ago)",
|
||||
or_circ->p_circ_id,
|
||||
(int)(now - or_circ->p_conn->timestamp_last_added_nonpadding));
|
||||
(int)(now - channel_when_last_xmit(or_circ->p_chan)));
|
||||
circuit_mark_for_close(circ, END_CIRC_REASON_FINISHED);
|
||||
}
|
||||
}
|
||||
@ -1163,6 +1164,7 @@ circuit_try_attaching_streams(origin_circuit_t *circ)
|
||||
void
|
||||
circuit_build_failed(origin_circuit_t *circ)
|
||||
{
|
||||
channel_t *n_chan = NULL;
|
||||
/* we should examine circ and see if it failed because of
|
||||
* the last hop or an earlier hop. then use this info below.
|
||||
*/
|
||||
@ -1179,11 +1181,13 @@ circuit_build_failed(origin_circuit_t *circ)
|
||||
/* We failed at the first hop. If there's an OR connection
|
||||
* to blame, blame it. Also, avoid this relay for a while, and
|
||||
* fail any one-hop directory fetches destined for it. */
|
||||
const char *n_conn_id = circ->cpath->extend_info->identity_digest;
|
||||
const char *n_chan_id = circ->cpath->extend_info->identity_digest;
|
||||
int already_marked = 0;
|
||||
if (circ->_base.n_conn) {
|
||||
or_connection_t *n_conn = circ->_base.n_conn;
|
||||
if (n_conn->is_bad_for_new_circs) {
|
||||
if (circ->_base.n_chan) {
|
||||
n_chan = circ->_base.n_chan;
|
||||
tor_assert(!(n_chan->is_listener));
|
||||
|
||||
if (n_chan->u.cell_chan.is_bad_for_new_circs) {
|
||||
/* We only want to blame this router when a fresh healthy
|
||||
* connection fails. So don't mark this router as newly failed,
|
||||
* since maybe this was just an old circuit attempt that's
|
||||
@ -1195,18 +1199,18 @@ circuit_build_failed(origin_circuit_t *circ)
|
||||
}
|
||||
log_info(LD_OR,
|
||||
"Our circuit failed to get a response from the first hop "
|
||||
"(%s:%d). I'm going to try to rotate to a better connection.",
|
||||
n_conn->_base.address, n_conn->_base.port);
|
||||
n_conn->is_bad_for_new_circs = 1;
|
||||
"(%s). I'm going to try to rotate to a better connection.",
|
||||
channel_get_canonical_remote_descr(n_chan));
|
||||
n_chan->u.cell_chan.is_bad_for_new_circs = 1;
|
||||
} else {
|
||||
log_info(LD_OR,
|
||||
"Our circuit died before the first hop with no connection");
|
||||
}
|
||||
if (n_conn_id && !already_marked) {
|
||||
entry_guard_register_connect_status(n_conn_id, 0, 1, time(NULL));
|
||||
if (n_chan_id && !already_marked) {
|
||||
entry_guard_register_connect_status(n_chan_id, 0, 1, time(NULL));
|
||||
/* if there are any one-hop streams waiting on this circuit, fail
|
||||
* them now so they can retry elsewhere. */
|
||||
connection_ap_fail_onehop(n_conn_id, circ->build_state);
|
||||
connection_ap_fail_onehop(n_chan_id, circ->build_state);
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -2148,6 +2148,7 @@ dumpstats(int severity)
|
||||
}
|
||||
}
|
||||
}
|
||||
/* TODO add dump for channels with circuit_dump_by_chan() */
|
||||
circuit_dump_by_conn(conn, severity); /* dump info about all the circuits
|
||||
* using this conn */
|
||||
} SMARTLIST_FOREACH_END(conn);
|
||||
|
44
src/or/or.h
44
src/or/or.h
@ -445,9 +445,9 @@ typedef enum {
|
||||
#define CIRCUIT_STATE_BUILDING 0
|
||||
/** Circuit state: Waiting to process the onionskin. */
|
||||
#define CIRCUIT_STATE_ONIONSKIN_PENDING 1
|
||||
/** Circuit state: I'd like to deliver a create, but my n_conn is still
|
||||
/** Circuit state: I'd like to deliver a create, but my n_chan is still
|
||||
* connecting. */
|
||||
#define CIRCUIT_STATE_OR_WAIT 2
|
||||
#define CIRCUIT_STATE_CHAN_WAIT 2
|
||||
/** Circuit state: onionskin(s) processed, ready to send/receive cells. */
|
||||
#define CIRCUIT_STATE_OPEN 3
|
||||
|
||||
@ -674,7 +674,7 @@ typedef enum {
|
||||
#define END_CIRC_REASON_RESOURCELIMIT 5
|
||||
#define END_CIRC_REASON_CONNECTFAILED 6
|
||||
#define END_CIRC_REASON_OR_IDENTITY 7
|
||||
#define END_CIRC_REASON_OR_CONN_CLOSED 8
|
||||
#define END_CIRC_REASON_CHANNEL_CLOSED 8
|
||||
#define END_CIRC_REASON_FINISHED 9
|
||||
#define END_CIRC_REASON_TIMEOUT 10
|
||||
#define END_CIRC_REASON_DESTROYED 11
|
||||
@ -2590,9 +2590,9 @@ typedef struct circuit_t {
|
||||
* ORIGIN_CIRCUIT_MAGIC or OR_CIRCUIT_MAGIC. */
|
||||
|
||||
/** Queue of cells waiting to be transmitted on n_conn. */
|
||||
cell_queue_t n_conn_cells;
|
||||
/** The OR connection that is next in this circuit. */
|
||||
or_connection_t *n_conn;
|
||||
cell_queue_t n_chan_cells;
|
||||
/** The channel that is next in this circuit. */
|
||||
channel_t *n_chan;
|
||||
/** The circuit_id used in the next (forward) hop of this circuit. */
|
||||
circid_t n_circ_id;
|
||||
|
||||
@ -2600,12 +2600,12 @@ typedef struct circuit_t {
|
||||
* the circuit has attached to a connection. */
|
||||
extend_info_t *n_hop;
|
||||
|
||||
/** True iff we are waiting for n_conn_cells to become less full before
|
||||
/** True iff we are waiting for n_chan_cells to become less full before
|
||||
* allowing p_streams to add any more cells. (Origin circuit only.) */
|
||||
unsigned int streams_blocked_on_n_conn : 1;
|
||||
/** True iff we are waiting for p_conn_cells to become less full before
|
||||
unsigned int streams_blocked_on_n_chan : 1;
|
||||
/** True iff we are waiting for p_chan_cells to become less full before
|
||||
* allowing n_streams to add any more cells. (OR circuit only.) */
|
||||
unsigned int streams_blocked_on_p_conn : 1;
|
||||
unsigned int streams_blocked_on_p_chan : 1;
|
||||
|
||||
uint8_t state; /**< Current status of this circuit. */
|
||||
uint8_t purpose; /**< Why are we creating this circuit? */
|
||||
@ -2620,10 +2620,10 @@ typedef struct circuit_t {
|
||||
* more. */
|
||||
int deliver_window;
|
||||
|
||||
/** For storage while n_conn is pending
|
||||
* (state CIRCUIT_STATE_OR_WAIT). When defined, it is always
|
||||
/** For storage while n_chan is pending
|
||||
* (state CIRCUIT_STATE_CHAN_WAIT). When defined, it is always
|
||||
* length ONIONSKIN_CHALLENGE_LEN. */
|
||||
char *n_conn_onionskin;
|
||||
char *n_chan_onionskin;
|
||||
|
||||
/** When was this circuit created? We keep this timestamp with a higher
|
||||
* resolution than most so that the circuit-build-time tracking code can
|
||||
@ -2652,11 +2652,11 @@ typedef struct circuit_t {
|
||||
/** Next circuit in the doubly-linked ring of circuits waiting to add
|
||||
* cells to n_conn. NULL if we have no cells pending, or if we're not
|
||||
* linked to an OR connection. */
|
||||
struct circuit_t *next_active_on_n_conn;
|
||||
struct circuit_t *next_active_on_n_chan;
|
||||
/** Previous circuit in the doubly-linked ring of circuits waiting to add
|
||||
* cells to n_conn. NULL if we have no cells pending, or if we're not
|
||||
* linked to an OR connection. */
|
||||
struct circuit_t *prev_active_on_n_conn;
|
||||
struct circuit_t *prev_active_on_n_chan;
|
||||
struct circuit_t *next; /**< Next circuit in linked list of all circuits. */
|
||||
|
||||
/** Unique ID for measuring tunneled network status requests. */
|
||||
@ -2828,20 +2828,20 @@ typedef struct or_circuit_t {
|
||||
circuit_t _base;
|
||||
|
||||
/** Next circuit in the doubly-linked ring of circuits waiting to add
|
||||
* cells to p_conn. NULL if we have no cells pending, or if we're not
|
||||
* cells to p_chan. NULL if we have no cells pending, or if we're not
|
||||
* linked to an OR connection. */
|
||||
struct circuit_t *next_active_on_p_conn;
|
||||
struct circuit_t *next_active_on_p_chan;
|
||||
/** Previous circuit in the doubly-linked ring of circuits waiting to add
|
||||
* cells to p_conn. NULL if we have no cells pending, or if we're not
|
||||
* cells to p_chan. NULL if we have no cells pending, or if we're not
|
||||
* linked to an OR connection. */
|
||||
struct circuit_t *prev_active_on_p_conn;
|
||||
struct circuit_t *prev_active_on_p_chan;
|
||||
|
||||
/** The circuit_id used in the previous (backward) hop of this circuit. */
|
||||
circid_t p_circ_id;
|
||||
/** Queue of cells waiting to be transmitted on p_conn. */
|
||||
cell_queue_t p_conn_cells;
|
||||
/** The OR connection that is previous in this circuit. */
|
||||
or_connection_t *p_conn;
|
||||
cell_queue_t p_chan_cells;
|
||||
/** The channel that is previous in this circuit. */
|
||||
channel_t *p_chan;
|
||||
/** Linked list of Exit streams associated with this circuit. */
|
||||
edge_connection_t *n_streams;
|
||||
/** Linked list of Exit streams associated with this circuit that are
|
||||
|
@ -323,8 +323,8 @@ circuit_end_reason_to_control_string(int reason)
|
||||
return "CONNECTFAILED";
|
||||
case END_CIRC_REASON_OR_IDENTITY:
|
||||
return "OR_IDENTITY";
|
||||
case END_CIRC_REASON_OR_CONN_CLOSED:
|
||||
return "OR_CONN_CLOSED";
|
||||
case END_CIRC_REASON_CHANNEL_CLOSED:
|
||||
return "CHANNEL_CLOSED";
|
||||
case END_CIRC_REASON_FINISHED:
|
||||
return "FINISHED";
|
||||
case END_CIRC_REASON_TIMEOUT:
|
||||
|
@ -45,15 +45,15 @@ void cell_queue_clear(cell_queue_t *queue);
|
||||
void cell_queue_append(cell_queue_t *queue, packed_cell_t *cell);
|
||||
void cell_queue_append_packed_copy(cell_queue_t *queue, const cell_t *cell);
|
||||
|
||||
void append_cell_to_circuit_queue(circuit_t *circ, or_connection_t *orconn,
|
||||
void append_cell_to_circuit_queue(circuit_t *circ, channel_t *chan,
|
||||
cell_t *cell, cell_direction_t direction,
|
||||
streamid_t fromstream);
|
||||
void connection_or_unlink_all_active_circs(or_connection_t *conn);
|
||||
int connection_or_flush_from_first_active_circuit(or_connection_t *conn,
|
||||
void channel_unlink_all_active_circs(channel_t *chan);
|
||||
int channel_flush_from_first_active_circuit(channel_t *conn,
|
||||
int max, time_t now);
|
||||
void assert_active_circuits_ok(or_connection_t *orconn);
|
||||
void make_circuit_inactive_on_conn(circuit_t *circ, or_connection_t *conn);
|
||||
void make_circuit_active_on_conn(circuit_t *circ, or_connection_t *conn);
|
||||
void make_circuit_inactive_on_chan(circuit_t *circ, channel_t *chan);
|
||||
void make_circuit_active_on_chan(circuit_t *circ, channel_t *chan);
|
||||
|
||||
int append_address_to_payload(uint8_t *payload_out, const tor_addr_t *addr);
|
||||
const uint8_t *decode_address_from_payload(tor_addr_t *addr_out,
|
||||
@ -62,7 +62,7 @@ const uint8_t *decode_address_from_payload(tor_addr_t *addr_out,
|
||||
unsigned cell_ewma_get_tick(void);
|
||||
void cell_ewma_set_scale_factor(const or_options_t *options,
|
||||
const networkstatus_t *consensus);
|
||||
void circuit_clear_cell_queue(circuit_t *circ, or_connection_t *orconn);
|
||||
void circuit_clear_cell_queue(circuit_t *circ, channel_t *chan);
|
||||
|
||||
#ifdef RELAY_PRIVATE
|
||||
int relay_crypt(circuit_t *circ, cell_t *cell, cell_direction_t cell_direction,
|
||||
|
Loading…
Reference in New Issue
Block a user