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authorRoger Dingledine <arma@torproject.org>2011-03-11 04:21:25 -0500
committerNick Mathewson <nickm@torproject.org>2011-04-26 23:54:13 -0400
commit5d12495d982d076b74ca2c0c88b78b00d2810e71 (patch)
tree4fd9a7cb2b150a67ee5f2af6b69cbc8c60c2b795
parent719b5b87dee4910bb3e2d29db6e2012416f60d3d (diff)
downloadtor-5d12495d982d076b74ca2c0c88b78b00d2810e71.tar
tor-5d12495d982d076b74ca2c0c88b78b00d2810e71.tar.gz
the new entrynodes behavior is always strict
-rw-r--r--src/or/circuitbuild.c36
1 files changed, 11 insertions, 25 deletions
diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c
index ebbda211d..86406cbea 100644
--- a/src/or/circuitbuild.c
+++ b/src/or/circuitbuild.c
@@ -4006,14 +4006,10 @@ entry_guards_prepend_from_config(or_options_t *options)
SMARTLIST_FOREACH(entry_routers, routerinfo_t *, ri, {
add_an_entry_guard(ri, 0);
});
- /* Finally, the remaining previously configured guards that are not in
- * EntryNodes, unless we're strict in which case we drop them */
- if (options->StrictNodes) {
- SMARTLIST_FOREACH(old_entry_guards_not_on_list, entry_guard_t *, e,
- entry_guard_free(e));
- } else {
- smartlist_add_all(entry_guards, old_entry_guards_not_on_list);
- }
+ /* Finally, free the remaining previously configured guards that are not in
+ * EntryNodes. */
+ SMARTLIST_FOREACH(old_entry_guards_not_on_list, entry_guard_t *, e,
+ entry_guard_free(e));
smartlist_free(entry_routers);
smartlist_free(entry_fps);
@@ -4024,7 +4020,7 @@ entry_guards_prepend_from_config(or_options_t *options)
/** Return 0 if we're fine adding arbitrary routers out of the
* directory to our entry guard list, or return 1 if we have a
- * list already and we'd prefer to stick to it.
+ * list already and we must stick to it.
*/
int
entry_list_is_constrained(or_options_t *options)
@@ -4036,18 +4032,6 @@ entry_list_is_constrained(or_options_t *options)
return 0;
}
-/* Are we dead set against changing our entry guard list, or would we
- * change it if it means keeping Tor usable? */
-static int
-entry_list_is_totally_static(or_options_t *options)
-{
- if (options->EntryNodes && options->StrictNodes)
- return 1;
- if (options->UseBridges)
- return 1;
- return 0;
-}
-
/** Pick a live (up and listed) entry guard from entry_guards. If
* <b>state</b> is non-NULL, this is for a specific circuit --
* make sure not to pick this circuit's exit or any node in the
@@ -4092,6 +4076,7 @@ choose_random_entry(cpath_build_state_t *state)
continue; /* don't pick the same node for entry and exit */
if (consider_exit_family && smartlist_isin(exit_family, r))
continue; /* avoid relays that are family members of our exit */
+#if 0 /* since EntryNodes is always strict now, this clause is moot */
if (options->EntryNodes &&
!routerset_contains_router(options->EntryNodes, r)) {
/* We've come to the end of our preferred entry nodes. */
@@ -4106,6 +4091,7 @@ choose_random_entry(cpath_build_state_t *state)
"No relays from EntryNodes available. Using others.");
}
}
+#endif
smartlist_add(live_entry_guards, r);
if (!entry->made_contact) {
/* Always start with the first not-yet-contacted entry
@@ -4131,7 +4117,7 @@ choose_random_entry(cpath_build_state_t *state)
}
if (smartlist_len(live_entry_guards) < preferred_min) {
- if (!entry_list_is_totally_static(options)) {
+ if (!entry_list_is_constrained(options)) {
/* still no? try adding a new entry then */
/* 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
@@ -4157,9 +4143,9 @@ choose_random_entry(cpath_build_state_t *state)
goto retry;
}
if (!r && entry_list_is_constrained(options) && consider_exit_family) {
- /* still no? if we're using bridges or have StrictNodes
- * set, and our chosen exit is in the same family as all our
- * bridges/entry guards, then be flexible about families. */
+ /* still no? if we're using bridges,
+ * and our chosen exit is in the same family as all our
+ * bridges, then be flexible about families. */
consider_exit_family = 0;
goto retry;
}