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https://gitlab.torproject.org/tpo/core/tor.git
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make progress towards retrying our bridges when they're all
down and we get a new socks request svn:r10967
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@ -294,7 +294,7 @@ origin_circuit_init(uint8_t purpose, int onehop_tunnel,
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return circ;
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}
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/** Build a new circuit for <b>purpose</b>. If <b>info</b>
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/** Build a new circuit for <b>purpose</b>. If <b>exit</b>
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* is defined, then use that as your exit router, else choose a suitable
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* exit node.
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*
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@ -2860,17 +2860,19 @@ learned_bridge_descriptor(routerinfo_t *ri)
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int
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any_bridge_descriptors_known(void)
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{
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tor_assert(get_options()->UseBridges);
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return choose_random_entry(NULL)!=NULL ? 1 : 0;
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}
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#if 0
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/** Return 1 if we have at least one descriptor for a bridge and
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* all descriptors we know are down. Else return 0. */
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int
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all_bridges_down(void)
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* all descriptors we know are down. Else return 0. If <b>act</b> is
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* 1, then mark the down bridges up; else just observe and report. */
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static int
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bridges_retry_helper(int act)
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{
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routerinfo_t *ri;
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int any_known = 0;
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int any_running = 0;
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if (!entry_guards)
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entry_guards = smartlist_create();
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SMARTLIST_FOREACH(entry_guards, entry_guard_t *, e,
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@ -2879,12 +2881,31 @@ all_bridges_down(void)
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if (ri && ri->purpose == ROUTER_PURPOSE_BRIDGE) {
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any_known = 1;
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if (ri->is_running)
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return 0; /* some bridge is both known and running */
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any_running = 1; /* some bridge is both known and running */
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else if (act) { /* mark it for retry */
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ri->is_running = 1;
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e->can_retry = 1;
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e->bad_since = 0;
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}
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}
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});
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return any_known;
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return any_known && !any_running;
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}
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/** Do we know any descriptors for our bridges, and are they all
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* down? */
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int
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bridges_should_be_retried(void)
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{
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return bridges_retry_helper(0);
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}
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/** Mark all down known bridges up. */
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void
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bridges_retry_all(void)
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{
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bridges_retry_helper(1);
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}
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#endif
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/** Release all storage held by the list of entry guards and related
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* memory structs. */
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@ -813,8 +813,9 @@ circuit_launch_by_router(uint8_t purpose, int onehop_tunnel,
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return circ;
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}
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/** Launch a new circuit with purpose <b>purpose</b> and exit node <b>info</b>
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* (or NULL to select a random exit node). If <b>need_uptime</b> is true,
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/** Launch a new circuit with purpose <b>purpose</b> and exit node
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* <b>extend_info</b> (or NULL to select a random exit node).
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* If <b>need_uptime</b> is true,
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* choose among routers with high uptime. If <b>need_capacity</b> is true,
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* choose among routers with high bandwidth. If <b>internal</b> is true, the
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* last hop need not be an exit node. Return the newly allocated circuit on
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@ -942,6 +943,7 @@ circuit_get_open_circ_or_launch(edge_connection_t *conn,
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int check_exit_policy;
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int need_uptime, need_internal;
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int want_onehop;
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or_options_t *options = get_options();
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tor_assert(conn);
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tor_assert(circp);
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@ -952,7 +954,7 @@ circuit_get_open_circ_or_launch(edge_connection_t *conn,
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want_onehop = conn->socks_request->command == SOCKS_COMMAND_CONNECT_DIR;
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need_uptime = (conn->socks_request->command == SOCKS_COMMAND_CONNECT) &&
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smartlist_string_num_isin(get_options()->LongLivedPorts,
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smartlist_string_num_isin(options->LongLivedPorts,
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conn->socks_request->port);
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need_internal = desired_circuit_purpose != CIRCUIT_PURPOSE_C_GENERAL;
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@ -966,10 +968,17 @@ circuit_get_open_circ_or_launch(edge_connection_t *conn,
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if (!want_onehop && !router_have_minimum_dir_info()) {
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if (!connection_get_by_type(CONN_TYPE_DIR)) {
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log_notice(LD_APP|LD_DIR,
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"Application request when we're believed to be "
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"offline. Optimistically trying directory fetches again.");
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routerlist_retry_directory_downloads(time(NULL));
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if (options->UseBridges && bridges_should_be_retried()) {
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log_notice(LD_APP|LD_DIR,
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"Application request when we're believed to be "
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"offline. Optimistically trying known bridges again.");
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bridges_retry_all();
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} else if (!options->UseBridges || any_bridge_descriptors_known()) {
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log_notice(LD_APP|LD_DIR,
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"Application request when we're believed to be "
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"offline. Optimistically trying directory fetches again.");
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routerlist_retry_directory_downloads(time(NULL));
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}
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}
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/* the stream will be dealt with when router_have_minimum_dir_info becomes
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* 1, or when all directory attempts fail and directory_all_unreachable()
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@ -2264,6 +2264,8 @@ void bridge_add_from_config(uint32_t addr, uint16_t port, char *digest);
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void fetch_bridge_descriptors(time_t now);
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void learned_bridge_descriptor(routerinfo_t *ri);
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int any_bridge_descriptors_known(void);
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int bridges_should_be_retried(void);
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void bridges_retry_all(void);
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void entry_guards_free_all(void);
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