Implement core of ntor3 negotiation.

There are a lot of TODOs about what to send, whom to send it to, and
etc.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/core/or/extendinfo.c b/src/core/or/extendinfo.c
index 6bcef181be..f33e887e7d 100644
--- a/src/core/or/extendinfo.c
+++ b/src/core/or/extendinfo.c
@@ -56,6 +56,9 @@ extend_info_new(const char *nickname,
   if (addr) {
     extend_info_add_orport(info, addr, port);
   }
+
+  info->supports_ntor3_and_param_negotiation = false; // TODO: set this.
+
   return info;
 }
 
@@ -210,6 +213,15 @@ extend_info_supports_ntor(const extend_info_t* ei)
                           CURVE25519_PUBKEY_LEN);
 }
 
+/** Return true if we can use the Ntor v3 handshake with `ei` */
+int
+extend_info_supports_ntor_v3(const extend_info_t *ei)
+{
+  tor_assert(ei);
+  return extend_info_supports_ntor(ei) &&
+    ei->supports_ntor3_and_param_negotiation;
+}
+
 /* Does ei have an onion key which it would prefer to use?
  * Currently, we prefer ntor keys*/
 int