From 32213fa9ad8a306e1f3bade1c95b1ad95a136bd9 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Mon, 3 Dec 2018 12:18:45 -0500
Subject: [PATCH] Keep list of dirauth flags in sync between dirvote.c and
 fuzz_vrs.c

Suggested by Teor on PR
---
 src/feature/dirauth/dirvote.c | 20 ++++++++++++++++++--
 src/feature/dirauth/dirvote.h |  3 +++
 src/test/fuzz/fuzz_vrs.c      |  8 ++++++--
 3 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/src/feature/dirauth/dirvote.c b/src/feature/dirauth/dirvote.c
index aa4242f678..c6a2193087 100644
--- a/src/feature/dirauth/dirvote.c
+++ b/src/feature/dirauth/dirvote.c
@@ -4372,6 +4372,23 @@ clear_status_flags_on_sybil(routerstatus_t *rs)
    * forget to add it to this clause. */
 }
 
+/** Space-separated list of all the flags that we will always vote on. */
+const char DIRVOTE_UNIVERSAL_FLAGS[] =
+  "Authority "
+  "Exit "
+  "Fast "
+  "Guard "
+  "HSDir "
+  "Stable "
+  "StaleDesc "
+  "V2Dir "
+  "Valid";
+/** Space-separated list of all flags that we may or may not vote on,
+ * depending on our configuration. */
+const char DIRVOTE_OPTIONAL_FLAGS[] =
+  "BadExit "
+  "Running";
+
 /** Return a new networkstatus_t* containing our current opinion. (For v3
  * authorities) */
 networkstatus_t *
@@ -4620,8 +4637,7 @@ dirserv_generate_networkstatus_vote_obj(crypto_pk_t *private_key,
 
   v3_out->known_flags = smartlist_new();
   smartlist_split_string(v3_out->known_flags,
-                         "Authority Exit Fast Guard Stable V2Dir Valid HSDir "
-                         "StaleDesc",
+                         DIRVOTE_UNIVERSAL_FLAGS,
                          0, SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
   if (vote_on_reachability)
     smartlist_add_strdup(v3_out->known_flags, "Running");
diff --git a/src/feature/dirauth/dirvote.h b/src/feature/dirauth/dirvote.h
index a21e9f3455..f99cc2d2bf 100644
--- a/src/feature/dirauth/dirvote.h
+++ b/src/feature/dirauth/dirvote.h
@@ -92,6 +92,9 @@
 /** Maximum size of a line in a vote. */
 #define MAX_BW_FILE_HEADERS_LINE_LEN 1024
 
+extern const char DIRVOTE_UNIVERSAL_FLAGS[];
+extern const char DIRVOTE_OPTIONAL_FLAGS[];
+
 /*
  * Public API. Used outside of the dirauth subsystem.
  *
diff --git a/src/test/fuzz/fuzz_vrs.c b/src/test/fuzz/fuzz_vrs.c
index 3c6d205a3f..f0d90d7cc6 100644
--- a/src/test/fuzz/fuzz_vrs.c
+++ b/src/test/fuzz/fuzz_vrs.c
@@ -3,6 +3,7 @@
 #define NS_PARSE_PRIVATE
 #define NETWORKSTATUS_PRIVATE
 #include "core/or/or.h"
+#include "feature/dirauth/dirvote.h"
 #include "feature/dirparse/ns_parse.h"
 #include "feature/dirparse/unparseable.h"
 #include "lib/memarea/memarea.h"
@@ -35,9 +36,12 @@ fuzz_init(void)
   dummy_vote = tor_malloc_zero(sizeof(*dummy_vote));
   dummy_vote->known_flags = smartlist_new();
   smartlist_split_string(dummy_vote->known_flags,
-                         "Authority BadExit Exit Fast Guard HSDir "
-                         "NoEdConsensus Running Stable V2Dir Valid",
+                         DIRVOTE_UNIVERSAL_FLAGS,
                          " ", 0, 0);
+  smartlist_split_string(dummy_vote->known_flags,
+                         DIRVOTE_OPTIONAL_FLAGS,
+                         " ", 0, 0);
+  smartlist_sort_strings(dummy_vote->known_flags);
   return 0;
 }