commit b8ffb00cf1ddf4ff1b64335f8677d600a948fffc Author: Roger Dingledine arma@torproject.org Date: Thu May 19 23:36:20 2011 -0400
log the reason for publishing a new relay descriptor
now we have a better chance of hunting down the root cause of bug 1810. --- changes/bug3252 | 4 ++++ src/or/config.c | 2 +- src/or/dns.c | 9 ++++++--- src/or/main.c | 2 +- src/or/router.c | 21 ++++++++++++++------- src/or/router.h | 2 +- 6 files changed, 27 insertions(+), 13 deletions(-)
diff --git a/changes/bug3252 b/changes/bug3252 new file mode 100644 index 0000000..f85f633 --- /dev/null +++ b/changes/bug3252 @@ -0,0 +1,4 @@ + o Minor features: + - Relays now log the reason for publishing a new relay descriptor, + so we have a better chance of hunting down the root cause of bug + 1810. Resolves ticket 3252. diff --git a/src/or/config.c b/src/or/config.c index 8b59d50..68a6b29 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -1459,7 +1459,7 @@ options_act(or_options_t *old_options) */ if (!old_options || options_transition_affects_descriptor(old_options, options)) - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("config change");
/* We may need to reschedule some directory stuff if our status changed. */ if (old_options) { diff --git a/src/or/dns.c b/src/or/dns.c index 61c8f32..9b6b98a 100644 --- a/src/or/dns.c +++ b/src/or/dns.c @@ -1295,14 +1295,17 @@ configure_nameservers(int force) nameservers_configured = 1; if (nameserver_config_failed) { nameserver_config_failed = 0; - mark_my_descriptor_dirty(); + /* XXX the three calls to republish the descriptor might be producing + * descriptors that are only cosmetically different, especially on + * non-exit relays! -RD */ + mark_my_descriptor_dirty("dns resolvers back"); } return 0; err: nameservers_configured = 0; if (! nameserver_config_failed) { nameserver_config_failed = 1; - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("dns resolvers failed"); } return -1; } @@ -1522,7 +1525,7 @@ add_wildcarded_test_address(const char *address) "broken.", address, n); if (!dns_is_completely_invalid) { dns_is_completely_invalid = 1; - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("dns hijacking confirmed"); } if (!dns_wildcarded_test_address_notice_given) control_event_server_status(LOG_WARN, "DNS_USELESS"); diff --git a/src/or/main.c b/src/or/main.c index 2c95024..d1ceeec 100644 --- a/src/or/main.c +++ b/src/or/main.c @@ -1381,7 +1381,7 @@ ip_address_changed(int at_interface) reset_bandwidth_test(); stats_n_seconds_working = 0; router_reset_reachability(); - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("IP address changed"); } }
diff --git a/src/or/router.c b/src/or/router.c index 616a290..49a986d 100644 --- a/src/or/router.c +++ b/src/or/router.c @@ -87,7 +87,7 @@ set_onion_key(crypto_pk_env_t *k) onionkey = k; onionkey_set_at = time(NULL); tor_mutex_release(key_lock); - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("set onion key"); }
/** Return the current onion key. Requires that the onion key has been @@ -274,7 +274,7 @@ rotate_onion_key(void) now = time(NULL); state->LastRotatedOnionKey = onionkey_set_at = now; tor_mutex_release(key_lock); - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("rotated onion key"); or_state_mark_dirty(state, get_options()->AvoidDiskWrites ? now+3600 : 0); goto done; error: @@ -908,7 +908,7 @@ router_orport_found_reachable(void) get_options()->_PublishServerDescriptor != NO_AUTHORITY ? " Publishing server descriptor." : ""); can_reach_or_port = 1; - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("ORPort found reachable"); control_event_server_status(LOG_NOTICE, "REACHABILITY_SUCCEEDED ORADDRESS=%s:%d", me->address, me->or_port); @@ -925,7 +925,7 @@ router_dirport_found_reachable(void) "from the outside. Excellent."); can_reach_dir_port = 1; if (decide_to_advertise_dirport(get_options(), me->dir_port)) - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("DirPort found reachable"); control_event_server_status(LOG_NOTICE, "REACHABILITY_SUCCEEDED DIRADDRESS=%s:%d", me->address, me->dir_port); @@ -1232,6 +1232,10 @@ router_upload_dir_desc_to_dirservers(int force) return; if (!force && !desc_needs_upload) return; + + log_info(LD_OR, "Uploading relay descriptor to directory authorities%s", + force ? " (forced)" : ""); + desc_needs_upload = 0;
desc_len = ri->cache_info.signed_descriptor_len; @@ -1423,6 +1427,8 @@ router_rebuild_descriptor(int force) return -1; }
+ log_info(LD_OR, "Rebuilding relay descriptor%s", force ? " (forced)" : ""); + ri = tor_malloc_zero(sizeof(routerinfo_t)); ri->cache_info.routerlist_index = -1; ri->address = tor_dup_ip(addr); @@ -1597,14 +1603,15 @@ void mark_my_descriptor_dirty_if_older_than(time_t when) { if (desc_clean_since < when) - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("time for new descriptor"); }
/** Call when the current descriptor is out of date. */ void -mark_my_descriptor_dirty(void) +mark_my_descriptor_dirty(const char *reason) { desc_clean_since = 0; + log_info(LD_OR, "Decided to publish new relay descriptor: %s", reason); }
/** How frequently will we republish our descriptor because of large (factor @@ -1629,7 +1636,7 @@ check_descriptor_bandwidth_changed(time_t now) if (last_changed+MAX_BANDWIDTH_CHANGE_FREQ < now) { log_info(LD_GENERAL, "Measured bandwidth has changed; rebuilding descriptor."); - mark_my_descriptor_dirty(); + mark_my_descriptor_dirty("bandwidth has changed"); last_changed = now; } } diff --git a/src/or/router.h b/src/or/router.h index 1bf1a51..95c0a34 100644 --- a/src/or/router.h +++ b/src/or/router.h @@ -62,7 +62,7 @@ int should_refuse_unknown_exits(or_options_t *options);
void router_upload_dir_desc_to_dirservers(int force); void mark_my_descriptor_dirty_if_older_than(time_t when); -void mark_my_descriptor_dirty(void); +void mark_my_descriptor_dirty(const char *reason); void check_descriptor_bandwidth_changed(time_t now); void check_descriptor_ipaddress_changed(time_t now); void router_new_address_suggestion(const char *suggestion,