Authorities put p6 lines into microdescriptors.

src/or/dirvote.c

@@ -3569,6 +3569,17 @@ dirvote_create_microdescriptor(const routerinfo_t *ri, int consensus_method)
   if (summary && strcmp(summary, "reject 1-65535"))
     smartlist_add_asprintf(chunks, "p %s\n", summary);
 
+  if (consensus_method >= MIN_METHOD_FOR_P6_LINES &&
+      ri->ipv6_exit_policy) {
+    /* XXXX024 This doesn't match proposal 208, which says these should
+     * be taken unchanged from the routerinfo.  That's bogosity, IMO:
+     * the proposal should have said to do this instead.*/
+    char *p6 = write_short_policy(ri->ipv6_exit_policy);
+    if (p6 && strcmp(p6, "reject 1-65535"))
+      smartlist_add_asprintf(chunks, "p6 %s\n", p6);
+    tor_free(p6);
+  }
+
   output = smartlist_join_strings(chunks, "", 0, NULL);
 
   {

src/or/dirvote.h

@@ -20,7 +20,7 @@
 #define MIN_VOTE_INTERVAL 300
 
 /** The highest consensus method that we currently support. */
-#define MAX_SUPPORTED_CONSENSUS_METHOD 14
+#define MAX_SUPPORTED_CONSENSUS_METHOD 15
 
 /** Lowest consensus method that contains a 'directory-footer' marker */
 #define MIN_METHOD_FOR_FOOTER 9
@@ -45,6 +45,9 @@
 /** Lowest consensus method that contains "a" lines. */
 #define MIN_METHOD_FOR_A_LINES 14
 
+/** Lowest consensus method where microdescs may include a "p6" line. */
+#define MIN_METHOD_FOR_P6_LINES 15
+
 void dirvote_free_all(void);
 
 /* vote manipulation */