r9395@Kushana: nickm | 2006-10-26 22:06:51 -0400

 Fix Bug 349: Have GETINFO network-status return even old routers, and use long nicknames where appropriate.  Document this.


svn:r8834

ChangeLog

@@ -32,6 +32,9 @@ Changes in version 0.1.2.3-alpha - 2006-10-??
       can tell which events and features are supported.
     - A new CLEARDNSCACHE signal to allow controllers to clear the
       client-side DNS cache without expiring circuits.
+    - When the controller does a "GETINFO network-status", tell it about even
+      those routers whose descriptors are very old, and use long nicknames
+      where appropriate.
 
   o Security bugfixes:
     - When the user sends a NEWNYM signal, clear the client-side DNS

doc/control-spec.txt

@@ -369,7 +369,10 @@ $Id$
 
     "network-status" -- a space-separated list of all known OR identities.
       This is in the same format as the router-status line in directories;
-      see tor-spec.txt for details.
+      see dir-spec-v1.txt section 3 for details.  (If VERBOSE_NAMES is
+      enabled, the output will not conform to dir-spec-v1.txt; instead, the
+      result will be a space-separated list of LongName, each preceded by a
+      "!" if it is believed to be not running.)
 
     "addr-mappings/all"
     "addr-mappings/config"

src/or/control.c

@@ -1532,8 +1532,9 @@ handle_getinfo_helper(control_connection_t *control_conn,
                                              strlen("unregistered-servers-"));
   } else if (!strcmp(question, "network-status")) {
     routerlist_t *routerlist = router_get_routerlist();
+    int verbose = control_conn->use_long_names;
     if (!routerlist || !routerlist->routers ||
-        list_server_status(routerlist->routers, answer) < 0) {
+        list_server_status(routerlist->routers, answer, verbose ? 2 : 1) < 0) {
       return -1;
     }
   } else if (!strcmp(question, "circuit-status")) {

src/or/dirserv.c

@@ -566,7 +566,6 @@ dirserv_add_descriptor(const char *desc, const char **msg)
   }
 }
 
-
 static INLINE int
 bool_neq(int a, int b)
 {
@@ -731,9 +730,13 @@ dirserv_thinks_router_is_blatantly_unreachable(routerinfo_t *router,
 /** Based on the routerinfo_ts in <b>routers</b>, allocate the
  * contents of a router-status line, and store it in
  * *<b>router_status_out</b>.  Return 0 on success, -1 on failure.
+ *
+ * If for_controller is true, include the routers with very old descriptors.
+ * If for_controller is &gt;1, use the verbose nickname format.
  */
 int
-list_server_status(smartlist_t *routers, char **router_status_out)
+list_server_status(smartlist_t *routers, char **router_status_out,
+                   int for_controller)
 {
   /* List of entries in a router-status style: An optional !, then an optional
    * equals-suffixed nickname, then a dollar-prefixed hexdigest. */
@@ -751,8 +754,16 @@ list_server_status(smartlist_t *routers, char **router_status_out)
       /* Update router status in routerinfo_t. */
       ri->is_running = dirserv_thinks_router_is_reachable(ri, now);
     }
-    if (ri->cache_info.published_on >= cutoff)
+    if (for_controller == 1 || ri->cache_info.published_on >= cutoff)
       smartlist_add(rs_entries, list_single_server_status(ri, ri->is_running));
+    else if (for_controller > 2) {
+      char name_buf[MAX_VERBOSE_NICKNAME_LEN+2];
+      char *cp = name_buf;
+      if (!ri->is_running)
+        *cp++ = '!';
+      router_get_verbose_nickname(cp, ri);
+      smartlist_add(rs_entries, tor_strdup(name_buf));
+    }
   });
 
   *router_status_out = smartlist_join_strings(rs_entries, " ", 0, NULL);
@@ -824,7 +835,7 @@ dirserv_dump_directory_to_string(char **dir_out,
   tor_assert(dir_out);
   *dir_out = NULL;
 
-  if (list_server_status(rl->routers, &router_status))
+  if (list_server_status(rl->routers, &router_status, 0))
     return -1;
 
   if (crypto_pk_write_public_key_to_string(private_key,&identity_pkey,
@@ -1198,7 +1209,7 @@ generate_runningrouters(void)
   size_t identity_pkey_len;
   routerlist_t *rl = router_get_routerlist();
 
-  if (list_server_status(rl->routers, &router_status)) {
+  if (list_server_status(rl->routers, &router_status, 0)) {
     goto err;
   }
   if (crypto_pk_write_public_key_to_string(private_key,&identity_pkey,

src/or/or.h

@@ -2189,7 +2189,8 @@ char *dirserver_getinfo_unregistered(const char *question);
 void dirserv_free_descriptors(void);
 int dirserv_thinks_router_is_blatantly_unreachable(routerinfo_t *router,
                                                    time_t now);
-int list_server_status(smartlist_t *routers, char **router_status_out);
+int list_server_status(smartlist_t *routers, char **router_status_out,
+                       int for_controller);
 int dirserv_dump_directory_to_string(char **dir_out,
                                      crypto_pk_env_t *private_key,
                                      int complete);