diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/app/config/config.c | 6 | ||||
| -rw-r--r-- | src/app/config/or_options_st.h | 3 | ||||
| -rw-r--r-- | src/core/or/circuitbuild.c | 19 | ||||
| -rw-r--r-- | src/feature/nodelist/nodelist.c | 2 | ||||
| -rw-r--r-- | src/feature/nodelist/routerlist.c | 2 |
5 files changed, 30 insertions, 2 deletions
diff --git a/src/app/config/config.c b/src/app/config/config.c index 32b487dd24..728b7ff65f 100644 --- a/src/app/config/config.c +++ b/src/app/config/config.c @@ -418,6 +418,10 @@ static config_var_t option_vars_[] = { V(ExcludeExitNodes, ROUTERSET, NULL), OBSOLETE("ExcludeSingleHopRelays"), V(ExitNodes, ROUTERSET, NULL), + /* Researchers need a way to tell their clients to use specific + * middles that they also control, to allow safe live-network + * experimentation with new padding machines. */ + V(MiddleNodes, ROUTERSET, NULL), V(ExitPolicy, LINELIST, NULL), V(ExitPolicyRejectPrivate, BOOL, "1"), V(ExitPolicyRejectLocalInterfaces, BOOL, "0"), @@ -1690,6 +1694,7 @@ options_need_geoip_info(const or_options_t *options, const char **reason_out) int routerset_usage = routerset_needs_geoip(options->EntryNodes) || routerset_needs_geoip(options->ExitNodes) || + routerset_needs_geoip(options->MiddleNodes) || routerset_needs_geoip(options->ExcludeExitNodes) || routerset_needs_geoip(options->ExcludeNodes) || routerset_needs_geoip(options->HSLayer2Nodes) || @@ -2129,6 +2134,7 @@ options_act(const or_options_t *old_options) options->HSLayer2Nodes) || !routerset_equal(old_options->HSLayer3Nodes, options->HSLayer3Nodes) || + !routerset_equal(old_options->MiddleNodes, options->MiddleNodes) || options->StrictNodes != old_options->StrictNodes) { log_info(LD_CIRC, "Changed to using entry guards or bridges, or changed " diff --git a/src/app/config/or_options_st.h b/src/app/config/or_options_st.h index c2bc1079a5..63a17c9771 100644 --- a/src/app/config/or_options_st.h +++ b/src/app/config/or_options_st.h @@ -72,6 +72,9 @@ struct or_options_t { routerset_t *ExitNodes; /**< Structure containing nicknames, digests, * country codes and IP address patterns of ORs to * consider as exits. */ + routerset_t *MiddleNodes; /**< Structure containing nicknames, digests, + * country codes and IP address patterns of ORs to + * consider as middles. */ routerset_t *EntryNodes;/**< Structure containing nicknames, digests, * country codes and IP address patterns of ORs to * consider as entry points. */ diff --git a/src/core/or/circuitbuild.c b/src/core/or/circuitbuild.c index 2d8bc4d4ad..22e4cf96d8 100644 --- a/src/core/or/circuitbuild.c +++ b/src/core/or/circuitbuild.c @@ -2610,7 +2610,24 @@ choose_good_middle_server(uint8_t purpose, return choice; } - choice = router_choose_random_node(excluded, options->ExcludeNodes, flags); + if (options->MiddleNodes) { + smartlist_t *sl = smartlist_new(); + routerset_get_all_nodes(sl, options->MiddleNodes, + options->ExcludeNodes, 1); + + smartlist_subtract(sl, excluded); + + choice = node_sl_choose_by_bandwidth(sl, WEIGHT_FOR_MID); + smartlist_free(sl); + if (choice) { + log_fn(LOG_INFO, LD_CIRC, "Chose fixed middle node: %s", + hex_str(choice->identity, DIGEST_LEN)); + } else { + log_fn(LOG_NOTICE, LD_CIRC, "Restricted middle not available"); + } + } else { + choice = router_choose_random_node(excluded, options->ExcludeNodes, flags); + } smartlist_free(excluded); return choice; } diff --git a/src/feature/nodelist/nodelist.c b/src/feature/nodelist/nodelist.c index 15b3f7b600..33601fe1fa 100644 --- a/src/feature/nodelist/nodelist.c +++ b/src/feature/nodelist/nodelist.c @@ -2350,7 +2350,7 @@ compute_frac_paths_available(const networkstatus_t *consensus, const int authdir = authdir_mode_v3(options); count_usable_descriptors(num_present_out, num_usable_out, - mid, consensus, now, NULL, + mid, consensus, now, options->MiddleNodes, USABLE_DESCRIPTOR_ALL); log_debug(LD_NET, "%s: %d present, %d usable", diff --git a/src/feature/nodelist/routerlist.c b/src/feature/nodelist/routerlist.c index b4d56459df..c8a658414b 100644 --- a/src/feature/nodelist/routerlist.c +++ b/src/feature/nodelist/routerlist.c @@ -3221,6 +3221,8 @@ refresh_all_country_info(void) routerset_refresh_countries(options->EntryNodes); if (options->ExitNodes) routerset_refresh_countries(options->ExitNodes); + if (options->MiddleNodes) + routerset_refresh_countries(options->MiddleNodes); if (options->ExcludeNodes) routerset_refresh_countries(options->ExcludeNodes); if (options->ExcludeExitNodes) |