[or-cvs] r9574: Node-picking fixes: Never warn when a down node is listed in (in tor/trunk: . src/common src/or)
nickm at seul.org
nickm at seul.org
Tue Feb 13 01:27:57 UTC 2007
Author: nickm
Date: 2007-02-12 20:27:55 -0500 (Mon, 12 Feb 2007)
New Revision: 9574
Modified:
tor/trunk/
tor/trunk/ChangeLog
tor/trunk/src/common/container.c
tor/trunk/src/common/container.h
tor/trunk/src/or/circuitbuild.c
tor/trunk/src/or/or.h
tor/trunk/src/or/routerlist.c
Log:
r11785 at catbus: nickm | 2007-02-12 20:27:48 -0500
Node-picking fixes: Never warn when a down node is listed in a config option (bug 348); always warn when a node in a config option is unnamed. Also, when entrynodes is configured, then build the guard list as: (parts of EntryNodes that were guards before), (the rest of EntryNodes), (the rest of the old guards). This last point ensures that EntryNode users will get the EntryNodes they want with the minimum change to their guard list.
Property changes on: tor/trunk
___________________________________________________________________
svk:merge ticket from /tor/trunk [r11785] on 8246c3cf-6607-4228-993b-4d95d33730f1
Modified: tor/trunk/ChangeLog
===================================================================
--- tor/trunk/ChangeLog 2007-02-12 23:39:34 UTC (rev 9573)
+++ tor/trunk/ChangeLog 2007-02-13 01:27:55 UTC (rev 9574)
@@ -34,6 +34,9 @@
other than file-not-found.
- Don't warn the user when cached-routers.new doesn't exist: that's
perfectly fine when starting up for the first time.
+ - When EntryNodes are configured, rebuild the guard list to contain, in
+ order: the EntryNodes that were guards before; the rest of the
+ EntryNodes; the nodes that were guards before.
o Minor features:
- Warn the user when an application uses the obsolete binary v0
@@ -52,6 +55,9 @@
which are incoming connections and which are outgoing.
- Discard any v1 directory info that's over 1 month old (for
directories) or over 1 week old (for running-routers lists).
+ - Do not warn when individual nodes in the configuration's EntryNodes,
+ ExitNodes (etc) are down: warn only when all possible nodes are down.
+ (Fixes bug 348.)
Changes in version 0.1.2.7-alpha - 2007-02-06
Modified: tor/trunk/src/common/container.c
===================================================================
--- tor/trunk/src/common/container.c 2007-02-12 23:39:34 UTC (rev 9573)
+++ tor/trunk/src/common/container.c 2007-02-13 01:27:55 UTC (rev 9574)
@@ -221,6 +221,20 @@
return smartlist_string_isin(sl, buf);
}
+/** Return true iff <b>sl</b> has some element E such that
+ * !memcmp(E,<b>element</b>,DIGEST_LEN)
+ */
+int
+smartlist_digest_isin(const smartlist_t *sl, const char *element)
+{
+ int i;
+ if (!sl) return 0;
+ for (i=0; i < sl->num_used; i++)
+ if (memcmp((const char*)sl->list[i],element,DIGEST_LEN)==0)
+ return 1;
+ return 0;
+}
+
/** Return true iff some element E of sl2 has smartlist_isin(sl1,E).
*/
int
Modified: tor/trunk/src/common/container.h
===================================================================
--- tor/trunk/src/common/container.h 2007-02-12 23:39:34 UTC (rev 9573)
+++ tor/trunk/src/common/container.h 2007-02-13 01:27:55 UTC (rev 9574)
@@ -43,6 +43,8 @@
int smartlist_string_isin_case(const smartlist_t *sl, const char *element)
ATTR_PURE;
int smartlist_string_num_isin(const smartlist_t *sl, int num) ATTR_PURE;
+int smartlist_digest_isin(const smartlist_t *sl, const char *element)
+ ATTR_PURE;
int smartlist_overlap(const smartlist_t *sl1, const smartlist_t *sl2)
ATTR_PURE;
void smartlist_intersect(smartlist_t *sl1, const smartlist_t *sl2);
Modified: tor/trunk/src/or/circuitbuild.c
===================================================================
--- tor/trunk/src/or/circuitbuild.c 2007-02-12 23:39:34 UTC (rev 9573)
+++ tor/trunk/src/or/circuitbuild.c 2007-02-13 01:27:55 UTC (rev 9574)
@@ -1226,10 +1226,10 @@
n_pending_connections);
preferredexits = smartlist_create();
- add_nickname_list_to_smartlist(preferredexits,options->ExitNodes,1,1,1);
+ add_nickname_list_to_smartlist(preferredexits,options->ExitNodes,1);
excludedexits = smartlist_create();
- add_nickname_list_to_smartlist(excludedexits,options->ExcludeNodes,0,0,1);
+ add_nickname_list_to_smartlist(excludedexits,options->ExcludeNodes,0);
sl = smartlist_create();
@@ -2253,46 +2253,58 @@
void
entry_guards_prepend_from_config(void)
{
- int missed_some = 0;
- int idx;
or_options_t *options = get_options();
- smartlist_t *routers = smartlist_create();
- smartlist_t *tmp = smartlist_create();
+ smartlist_t *entry_routers = smartlist_create();
+ smartlist_t *old_entry_guards_on_list = smartlist_create();
+ smartlist_t *old_entry_guards_not_on_list = smartlist_create();
+ smartlist_t *entry_fps = smartlist_create();
tor_assert(entry_guards);
tor_assert(options->EntryNodes);
- if (options->StrictEntryNodes) {
- log_info(LD_CIRC,"Clearing old entry guards");
- SMARTLIST_FOREACH(entry_guards, entry_guard_t *, e, tor_free(e));
- smartlist_clear(entry_guards);
- entry_guards_changed();
- }
-
- add_nickname_list_to_smartlist(routers, options->EntryNodes,
- 0, 1, 1);
-
- /* take a moment first to notice whether we got them all */
log_info(LD_CIRC,"Adding configured EntryNodes '%s'.",
options->EntryNodes);
- smartlist_split_string(tmp, options->EntryNodes, ",",
- SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
- missed_some = smartlist_len(routers) != smartlist_len(tmp);
- SMARTLIST_FOREACH(tmp, char *, nick, tor_free(nick));
- smartlist_free(tmp);
- for (idx = smartlist_len(routers)-1 ; idx >= 0; idx--) {
- /* pick off the last one, turn it into a router, prepend it
- * to our entry_guards list. If we can't find it, set missed_some
- * to 1. */
- routerinfo_t *r = smartlist_get(routers, idx);
- add_an_entry_guard(r);
+ /* Split entry guards into those on the list and those not. */
+ add_nickname_list_to_smartlist(entry_routers, options->EntryNodes, 0);
+ SMARTLIST_FOREACH(entry_routers, routerinfo_t *, ri,
+ smartlist_add(entry_fps,ri->cache_info.identity_digest));
+ SMARTLIST_FOREACH(entry_guards, entry_guard_t *, e, {
+ if (smartlist_digest_isin(entry_fps, e->identity))
+ smartlist_add(old_entry_guards_on_list, e);
+ else
+ smartlist_add(old_entry_guards_not_on_list, e);
+ });
+
+ /* Remove all currently configured entry guards from entry_routers. */
+ SMARTLIST_FOREACH(entry_routers, routerinfo_t *, ri, {
+ if (is_an_entry_guard(ri->cache_info.identity_digest)) {
+ smartlist_del(entry_routers, ri_sl_idx--);
+ }
+ });
+
+ /* Now build the new entry_guards list. */
+ smartlist_clear(entry_guards);
+ /* First, the previously configured guards that are in EntryNodes. */
+ smartlist_add_all(entry_guards, old_entry_guards_on_list);
+ /* Next, the rest of EntryNodes */
+ SMARTLIST_FOREACH(entry_routers, routerinfo_t *, ri, {
+ add_an_entry_guard(ri);
+ });
+ /* Finally, the remaining EntryNodes, unless we're strict */
+ if (options->StrictEntryNodes) {
+ SMARTLIST_FOREACH(old_entry_guards_not_on_list, entry_guard_t *, e,
+ tor_free(e));
+ } else {
+ smartlist_add_all(entry_guards, old_entry_guards_not_on_list);
}
- if (!missed_some)
- should_add_entry_nodes = 0; /* whew, we're done */
-
- smartlist_free(routers);
+ should_add_entry_nodes = 0;
+ smartlist_free(entry_routers);
+ smartlist_free(entry_fps);
+ smartlist_free(old_entry_guards_on_list);
+ smartlist_free(old_entry_guards_not_on_list);
+ entry_guards_changed();
}
/** Pick a live (up and listed) entry guard from entry_guards, and
Modified: tor/trunk/src/or/or.h
===================================================================
--- tor/trunk/src/or/or.h 2007-02-12 23:39:34 UTC (rev 9573)
+++ tor/trunk/src/or/or.h 2007-02-13 01:27:55 UTC (rev 9574)
@@ -2869,8 +2869,7 @@
const char *digest);
void routerlist_add_family(smartlist_t *sl, routerinfo_t *router);
void add_nickname_list_to_smartlist(smartlist_t *sl, const char *list,
- int must_be_running,
- int warn_if_down, int warn_if_unnamed);
+ int must_be_running);
int router_nickname_is_in_list(routerinfo_t *router, const char *list);
routerinfo_t *routerlist_find_my_routerinfo(void);
routerinfo_t *router_find_exact_exit_enclave(const char *address,
Modified: tor/trunk/src/or/routerlist.c
===================================================================
--- tor/trunk/src/or/routerlist.c 2007-02-12 23:39:34 UTC (rev 9573)
+++ tor/trunk/src/or/routerlist.c 2007-02-13 01:27:55 UTC (rev 9574)
@@ -751,7 +751,7 @@
/* If the user declared any families locally, honor those too. */
for (cl = get_options()->NodeFamilies; cl; cl = cl->next) {
if (router_nickname_is_in_list(router, cl->value)) {
- add_nickname_list_to_smartlist(sl, cl->value, 0, 1, 1);
+ add_nickname_list_to_smartlist(sl, cl->value, 0);
}
}
}
@@ -759,14 +759,12 @@
/** Given a (possibly NULL) comma-and-whitespace separated list of nicknames,
* see which nicknames in <b>list</b> name routers in our routerlist, and add
* the routerinfos for those routers to <b>sl</b>. If <b>must_be_running</b>,
- * only include routers that we think are running. If <b>warn_if_down</b>,
- * warn if some included routers aren't running. If <b>warn_if_unnamed</b>,
- * warn if any non-Named routers are specified by nickname.
+ * only include routers that we think are running.
+ * Warn if any non-Named routers are specified by nickname.
*/
void
add_nickname_list_to_smartlist(smartlist_t *sl, const char *list,
- int must_be_running,
- int warn_if_down, int warn_if_unnamed)
+ int must_be_running)
{
routerinfo_t *router;
smartlist_t *nickname_list;
@@ -789,21 +787,13 @@
log_warn(LD_CONFIG, "Nickname '%s' is misformed; skipping", nick);
continue;
}
- router = router_get_by_nickname(nick, warn_if_unnamed);
+ router = router_get_by_nickname(nick, 1);
warned = smartlist_string_isin(warned_nicknames, nick);
if (router) {
if (!must_be_running || router->is_running) {
smartlist_add(sl,router);
- if (warned)
- smartlist_string_remove(warned_nicknames, nick);
- } else {
- if (!warned) {
- log_fn(warn_if_down ? LOG_WARN : LOG_DEBUG, LD_CONFIG,
- "Nickname list includes '%s' which is known but down.",nick);
- smartlist_add(warned_nicknames, tor_strdup(nick));
- }
}
- } else if (!router_get_combined_status_by_nickname(nick,warn_if_unnamed)) {
+ } else if (!router_get_combined_status_by_nickname(nick,1)) {
if (!warned) {
log_fn(have_dir_info ? LOG_WARN : LOG_INFO, LD_CONFIG,
"Nickname list includes '%s' which isn't a known router.",nick);
@@ -1135,13 +1125,13 @@
routerinfo_t *choice = NULL;
excludednodes = smartlist_create();
- add_nickname_list_to_smartlist(excludednodes,excluded,0,0,1);
+ add_nickname_list_to_smartlist(excludednodes,excluded,0);
/* Try the preferred nodes first. Ignore need_uptime and need_capacity
* and need_guard, since the user explicitly asked for these nodes. */
if (preferred) {
sl = smartlist_create();
- add_nickname_list_to_smartlist(sl,preferred,1,1,1);
+ add_nickname_list_to_smartlist(sl,preferred,1);
smartlist_subtract(sl,excludednodes);
if (excludedsmartlist)
smartlist_subtract(sl,excludedsmartlist);
@@ -1179,9 +1169,15 @@
}
}
smartlist_free(excludednodes);
- if (!choice)
- log_warn(LD_CIRC,
- "No available nodes when trying to choose node. Failing.");
+ if (!choice) {
+ if (strict) {
+ log_warn(LD_CIRC, "All preferred nodes were down when trying to choose "
+ "node, and the Strict[...]Nodes option was set. Failing.");
+ } else {
+ log_warn(LD_CIRC,
+ "No available nodes when trying to choose node. Failing.");
+ }
+ }
return choice;
}
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