tor

commit b67f7d722d4cb94d1e77ff9b300c82d8c72b14c3
parent a82c0cdfcfefc1761883d7f25ecdea73d7216e16
Author: Nick Mathewson <nickm@torproject.org>
Date:   Wed, 17 Jun 2020 11:00:58 -0400

Update the list of recommended protocol versions to match >=0.3.5.

Since Tor 0.2.9 has been unsupported since January, 0.3.5 is the
oldest supported version, and its features constitute the oldest
recommended feature-set.

This patch updates these recommendations:

   DirCache=2

      Support for consensus diffs.
      New in 0.3.1.1-alpha.

   HSDir=2

      Support for v3 onion service descriptors.
      New in 0.3.0.4-alpha.

   HSIntro=4

      Support for Ed25519 intropoint authentication keys.
      New in 0.3.0-4-alpha.

   HSRend=2

      Support for rendezvous cells longer than 20 bytes.
      New in 0.2.9.4-alpha.

   Link=5

      Link padding and link padding negotiation.
      New in 0.3.3.2-alpha.

   LinkAuth=3

       Ed25519 link authentication.
       New in 0.3.0.1-alpha.

Diffstat:
A
changes/ticket32696
 | 
7
+++++++
M
src/feature/dirauth/dirvote.h
 | 
8
++++----

2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/changes/ticket32696 b/changes/ticket32696
@@ -0,0 +1,7 @@
+  o Minor features (directory authority):
+    - Authorities now recommend protocol versions that are supported
+      by Tor 0.3.5 and later. (Earlier versions of Tor have been
+      deprecated since January of this year.)  This recommendation
+      will cause older clients and relays to give a warning on startup,
+      or when they download a consensus directory.
+      Closes ticket 32696.
diff --git a/src/feature/dirauth/dirvote.h b/src/feature/dirauth/dirvote.h
@@ -239,14 +239,14 @@ STATIC microdesc_t *dirvote_create_microdescriptor(const routerinfo_t *ri,
  * Recommending a new protocol causes old tor versions to log a warning.
  */
 #define DIRVOTE_RECOMMEND_RELAY_PROTO \
-  "Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 " \
-  "Link=4 Microdesc=1-2 Relay=2"
+  "Cons=1-2 Desc=1-2 DirCache=2 HSDir=2 HSIntro=4 HSRend=2 " \
+  "Link=5 LinkAuth=3 Microdesc=1-2 Relay=2"
 /** The recommended client protocols for this authority's votes.
  * Recommending a new protocol causes old tor versions to log a warning.
  */
 #define DIRVOTE_RECOMMEND_CLIENT_PROTO \
-  "Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 " \
-  "Link=4 Microdesc=1-2 Relay=2"
+  "Cons=1-2 Desc=1-2 DirCache=2 HSDir=2 HSIntro=4 HSRend=2 " \
+  "Link=5 LinkAuth=3 Microdesc=1-2 Relay=2"
 
 /** The required relay protocols for this authority's votes.
  * WARNING: Requiring a new protocol causes old tor versions to shut down.