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-rw-r--r--src/or/routerlist.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/or/routerlist.c b/src/or/routerlist.c
index 85e9e7d834..31693437e1 100644
--- a/src/or/routerlist.c
+++ b/src/or/routerlist.c
@@ -912,11 +912,14 @@ authority_certs_fetch_missing(networkstatus_t *status, time_t now)
} SMARTLIST_FOREACH_END(d);
if (smartlist_len(fps) > 1) {
+ static int want_auth = 0;
resource = smartlist_join_strings(fps, "", 0, NULL);
- /* XXX - do we want certs from authorities or mirrors? - teor */
directory_get_from_dirserver(DIR_PURPOSE_FETCH_CERTIFICATE, 0,
resource, PDS_RETRY_IF_NO_SERVERS,
- DL_WANT_ANY_DIRSERVER);
+ want_auth ? DL_WANT_AUTHORITY
+ : DL_WANT_ANY_DIRSERVER);
+ /* on failure, swap between using fallbacks and authorities */
+ want_auth = !want_auth;
tor_free(resource);
}
/* else we didn't add any: they were all pending */
@@ -958,11 +961,14 @@ authority_certs_fetch_missing(networkstatus_t *status, time_t now)
} SMARTLIST_FOREACH_END(d);
if (smartlist_len(fp_pairs) > 1) {
+ static int want_auth = 0;
resource = smartlist_join_strings(fp_pairs, "", 0, NULL);
- /* XXX - do we want certs from authorities or mirrors? - teor */
directory_get_from_dirserver(DIR_PURPOSE_FETCH_CERTIFICATE, 0,
resource, PDS_RETRY_IF_NO_SERVERS,
- DL_WANT_ANY_DIRSERVER);
+ want_auth ? DL_WANT_AUTHORITY
+ : DL_WANT_ANY_DIRSERVER);
+ /* on failure, swap between using fallbacks and authorities */
+ want_auth = !want_auth;
tor_free(resource);
}
/* else they were all pending */