Split mark-dir-failed-and-retry logic into separate function; make it retry runningrouters as well as directory fetches; note that the do-we-need-to-give-up test is wrong.

svn:r3256

src/or/connection.c

@@ -208,13 +208,7 @@ void connection_about_to_close_connection(connection_t *conn)
       if (conn->state == DIR_CONN_STATE_CONNECTING) {
         /* it's a directory server and connecting failed: forget about
            this router */
-        router_mark_as_down(conn->identity_digest);
-        if (conn->purpose == DIR_PURPOSE_FETCH_DIR &&
-            !all_trusted_directory_servers_down()) {
-          log_fn(LOG_INFO,"Giving up on dirserver %s; trying another.",
-                 conn->address);
-         directory_get_from_dirserver(DIR_PURPOSE_FETCH_DIR, NULL);
-        }
+        connection_dir_connect_failed(conn);
       }
       if (conn->purpose == DIR_PURPOSE_FETCH_RENDDESC)
         rend_client_desc_fetched(conn->rend_query, 0);

src/or/directory.c

@@ -213,6 +213,28 @@ directory_initiate_command_trusted_dir(trusted_dir_server_t *dirserv,
                NULL, dirserv->digest, purpose, resource, payload, payload_len);
 }
 
+/** Called when we are unable to complete our connection to a
+ * directory server: Mark the router as down and try again if possible.
+ */
+int
+connection_dir_connect_failed(connection_t *conn)
+{
+  router_mark_as_down(conn->identity_digest); /* don't try him again */
+  if (conn->purpose == DIR_PURPOSE_FETCH_DIR ||
+      conn->purpose == DIR_PURPOSE_FETCH_RUNNING_LIST) {
+    /* XXX This should possibly take into account that
+     * !advertised_server_mode() allows us to use more directory
+     * servers, and fascistfirewall allows us to use less.
+     */
+    if (!all_trusted_directory_servers_down()) {
+      log_fn(LOG_INFO,"Giving up on dirserver '%s'; trying another.", conn->address);
+      directory_get_from_dirserver(conn->purpose, NULL);
+    } else {
+      log_fn(LOG_INFO,"Giving up on dirserver '%s'; no more to try.", conn->address);
+    }
+  }
+}
+
 /** Helper for directory_initiate_command(router|trusted_dir): send the
  * command to a server whose address is <b>address</b>, whose IP is
  * <b>addr</b>, whose directory port is <b>dir_port</b>, whose tor version is
@@ -282,12 +304,7 @@ directory_initiate_command(const char *address, uint32_t addr,
     /* then we want to connect directly */
     switch (connection_connect(conn, conn->address, addr, dir_port)) {
       case -1:
-        router_mark_as_down(conn->identity_digest); /* don't try him again */
-        if (purpose == DIR_PURPOSE_FETCH_DIR &&
-            !all_trusted_directory_servers_down()) {
-          log_fn(LOG_INFO,"Giving up on dirserver '%s'; trying another.", conn->address);
-          directory_get_from_dirserver(purpose, NULL);
-        }
+        connection_dir_connect_failed(conn);
         connection_free(conn);
         return;
       case 1:

src/or/or.h

@@ -1318,6 +1318,7 @@ int connection_dir_reached_eof(connection_t *conn);
 int connection_dir_process_inbuf(connection_t *conn);
 int connection_dir_finished_flushing(connection_t *conn);
 int connection_dir_finished_connecting(connection_t *conn);
+int connection_dir_failed(connection_t *conn);
 void parse_dir_policy(void);
 
 /********************************* dirserv.c ***************************/
@@ -1704,4 +1705,3 @@ int tor_version_compare(tor_version_t *a, tor_version_t *b);
 void assert_addr_policy_ok(addr_policy_t *t);
 
 #endif
-