commit 1df7289000de7ffd8676ea0f3c276ea54e8cad3c Author: Nick Mathewson nickm@torproject.org Date: Tue Dec 11 11:43:27 2012 -0500

Remember which of our guards are directory caches --- src/or/entrynodes.c | 24 +++++++++++++++++++++++- src/or/entrynodes.h | 1 + 2 files changed, 24 insertions(+), 1 deletions(-)

diff --git a/src/or/entrynodes.c b/src/or/entrynodes.c index 8712241..f013481 100644 --- a/src/or/entrynodes.c +++ b/src/or/entrynodes.c @@ -125,6 +125,15 @@ entry_guard_set_status(entry_guard_t *e, const node_t *node, control_event_guard(e->nickname, e->identity, "GOOD"); changed = 1; } + + if (node) { + int is_dir = node_is_dir(node) != 0; + if (e->is_dir_cache != is_dir) { + e->is_dir_cache = is_dir; + changed = 1; + } + } + return changed; }

@@ -341,6 +350,7 @@ add_an_entry_guard(const node_t *chosen, int reset_status, int prepend) node_describe(node)); strlcpy(entry->nickname, node_get_nickname(node), sizeof(entry->nickname)); memcpy(entry->identity, node->identity, DIGEST_LEN); + entry->is_dir_cache = node_is_dir(node) != 0; /* Choose expiry time smudged over the past month. The goal here * is to a) spread out when Tor clients rotate their guards, so they * don't all select them on the same day, and b) avoid leaving a @@ -972,6 +982,17 @@ entry_guards_parse_state(or_state_t *state, int set, char **msg) "Bad hex digest for EntryGuard"); } } + if (smartlist_len(args) >= 3) { + const char *is_cache = smartlist_get(args, 2); + if (!strcasecmp(is_cache, "DirCache")) { + node->is_dir_cache = 1; + } else if (!strcasecmp(is_cache, "NoDirCache")) { + node->is_dir_cache = 0; + } else { + log_warn(LD_CONFIG, "Bogus third argument to EntryGuard line: %s", + escaped(is_cache)); + } + } SMARTLIST_FOREACH(args, char*, cp, tor_free(cp)); smartlist_free(args); if (*msg) @@ -1138,7 +1159,8 @@ entry_guards_update_state(or_state_t *state) *next = line = tor_malloc_zero(sizeof(config_line_t)); line->key = tor_strdup("EntryGuard"); base16_encode(dbuf, sizeof(dbuf), e->identity, DIGEST_LEN); - tor_asprintf(&line->value, "%s %s", e->nickname, dbuf); + tor_asprintf(&line->value, "%s %s %sDirCache", e->nickname, dbuf, + e->is_dir_cache ? "" : "No"); next = &(line->next); if (e->unreachable_since) { *next = line = tor_malloc_zero(sizeof(config_line_t)); diff --git a/src/or/entrynodes.h b/src/or/entrynodes.h index 4d031c3..24f2eef 100644 --- a/src/or/entrynodes.h +++ b/src/or/entrynodes.h @@ -35,6 +35,7 @@ typedef struct entry_guard_t { * for this node already? */ unsigned int path_bias_disabled : 1; /**< Have we disabled this node because * of path bias issues? */ + unsigned int is_dir_cache : 1; /**< DOCDOC */ time_t bad_since; /**< 0 if this guard is currently usable, or the time at * which it was observed to become (according to the * directory or the user configuration) unusable. */