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-rw-r--r--changes/bug994611
-rw-r--r--src/or/entrynodes.c22
2 files changed, 28 insertions, 5 deletions
diff --git a/changes/bug9946 b/changes/bug9946
new file mode 100644
index 0000000000..5d1c888743
--- /dev/null
+++ b/changes/bug9946
@@ -0,0 +1,11 @@
+ o Minor bugfixes:
+ - If the guard we choose first doesn't answer, we would try the
+ second guard, but once we connected to the second guard we would
+ abandon it and retry the first one, slowing down bootstrapping.
+ The fix is to treat all our initially chosen guards as acceptable
+ to use. Fixes bug 9946; bugfix on 0.1.1.11-alpha.
+
+ o Major bugfixes:
+ - Stop trying to fetch all our directory information from our first
+ guard. Discovered while fixing bug 9946; bugfix on 0.2.4.8-alpha.
+
diff --git a/src/or/entrynodes.c b/src/or/entrynodes.c
index f1af75aefb..2aa063cda4 100644
--- a/src/or/entrynodes.c
+++ b/src/or/entrynodes.c
@@ -345,7 +345,7 @@ control_event_guard_deferred(void)
* Else, put the one we pick at the end of the list. */
static const node_t *
add_an_entry_guard(const node_t *chosen, int reset_status, int prepend,
- int for_directory)
+ int for_discovery, int for_directory)
{
const node_t *node;
entry_guard_t *entry;
@@ -404,6 +404,18 @@ add_an_entry_guard(const node_t *chosen, int reset_status, int prepend,
* this guard. For details, see the Jan 2010 or-dev thread. */
entry->chosen_on_date = time(NULL) - crypto_rand_int(3600*24*30);
entry->chosen_by_version = tor_strdup(VERSION);
+
+ /* Are we picking this guard because all of our current guards are
+ * down so we need another one (for_discovery is 1), or because we
+ * decided we need more variety in our guard list (for_discovery is 0)?
+ *
+ * Currently we hack this behavior into place by setting "made_contact"
+ * for guards of the latter variety, so we'll be willing to use any of
+ * them right off the bat.
+ */
+ if (!for_discovery)
+ entry->made_contact = 1;
+
((node_t*)node)->using_as_guard = 1;
if (prepend)
smartlist_insert(entry_guards, 0, entry);
@@ -437,7 +449,7 @@ pick_entry_guards(const or_options_t *options, int for_directory)
tor_assert(entry_guards);
while (num_live_entry_guards(for_directory) < num_needed) {
- if (!add_an_entry_guard(NULL, 0, 0, for_directory))
+ if (!add_an_entry_guard(NULL, 0, 0, 0, for_directory))
break;
changed = 1;
}
@@ -870,7 +882,7 @@ entry_guards_set_from_config(const or_options_t *options)
/* Next, the rest of EntryNodes */
SMARTLIST_FOREACH_BEGIN(entry_nodes, const node_t *, node) {
- add_an_entry_guard(node, 0, 0, 0);
+ add_an_entry_guard(node, 0, 0, 1, 0);
if (smartlist_len(entry_guards) > options->NumEntryGuards * 10)
break;
} SMARTLIST_FOREACH_END(node);
@@ -1054,7 +1066,7 @@ choose_random_entry_impl(cpath_build_state_t *state, int for_directory,
/* XXX if guard doesn't imply fast and stable, then we need
* to tell add_an_entry_guard below what we want, or it might
* be a long time til we get it. -RD */
- node = add_an_entry_guard(NULL, 0, 0, for_directory);
+ node = add_an_entry_guard(NULL, 0, 0, 1, for_directory);
if (node) {
entry_guards_changed();
/* XXX we start over here in case the new node we added shares
@@ -2095,7 +2107,7 @@ learned_bridge_descriptor(routerinfo_t *ri, int from_cache)
node = node_get_mutable_by_id(ri->cache_info.identity_digest);
tor_assert(node);
rewrite_node_address_for_bridge(bridge, node);
- add_an_entry_guard(node, 1, 1, 0);
+ add_an_entry_guard(node, 1, 1, 0, 0);
log_notice(LD_DIR, "new bridge descriptor '%s' (%s): %s", ri->nickname,
from_cache ? "cached" : "fresh", router_describe(ri));