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[tor-commits] [tor/master] Remove MIN_METHOD_FOR and MIN_METHOD_FOR_A_LINES



commit 08373467b10a3e3c4765835d1820f86741b9f307
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Mon Apr 9 14:44:03 2018 -0400

    Remove MIN_METHOD_FOR and MIN_METHOD_FOR_A_LINES
    
    Also, in networkstatus.c, remove client code for recognizing pre-
    MIN_METHOD_FOR_A_LINES consensuses, and corresponding unit tests in
    test_dir.c.
---
 src/or/dirvote.c       | 15 ++++++---------
 src/or/dirvote.h       |  7 -------
 src/or/networkstatus.c |  2 +-
 src/test/test_dir.c    | 18 +++++-------------
 4 files changed, 12 insertions(+), 30 deletions(-)

diff --git a/src/or/dirvote.c b/src/or/dirvote.c
index 265715505..1985d9067 100644
--- a/src/or/dirvote.c
+++ b/src/or/dirvote.c
@@ -549,12 +549,12 @@ compute_routerstatus_consensus(smartlist_t *votes, int consensus_method,
 
   tor_assert(most);
 
-  /* If we're producing "a" lines, vote on potential alternative (sets
-   * of) OR port(s) in the winning routerstatuses.
+  /* Vote on potential alternative (sets of) OR port(s) in the winning
+   * routerstatuses.
    *
    * XXX prop186 There's at most one alternative OR port (_the_ IPv6
    * port) for now. */
-  if (consensus_method >= MIN_METHOD_FOR_A_LINES && best_alt_orport_out) {
+  if (best_alt_orport_out) {
     smartlist_t *alt_orports = smartlist_new();
     const tor_addr_port_t *most_alt_orport = NULL;
 
@@ -1890,10 +1890,8 @@ networkstatus_compute_consensus(smartlist_t *votes,
       rs_out.published_on = rs->status.published_on;
       rs_out.dir_port = rs->status.dir_port;
       rs_out.or_port = rs->status.or_port;
-      if (consensus_method >= MIN_METHOD_FOR_A_LINES) {
-        tor_addr_copy(&rs_out.ipv6_addr, &alt_orport.addr);
-        rs_out.ipv6_orport = alt_orport.port;
-      }
+      tor_addr_copy(&rs_out.ipv6_addr, &alt_orport.addr);
+      rs_out.ipv6_orport = alt_orport.port;
       rs_out.has_bandwidth = 0;
       rs_out.has_exitsummary = 0;
 
@@ -3846,8 +3844,7 @@ dirvote_create_microdescriptor(const routerinfo_t *ri, int consensus_method)
 
   /* We originally put a lines in the micrdescriptors, but then we worked out
    * that we needed them in the microdesc consensus. See #20916. */
-  if (consensus_method >= MIN_METHOD_FOR_A_LINES &&
-      consensus_method < MIN_METHOD_FOR_NO_A_LINES_IN_MICRODESC &&
+  if (consensus_method < MIN_METHOD_FOR_NO_A_LINES_IN_MICRODESC &&
       !tor_addr_is_null(&ri->ipv6_addr) && ri->ipv6_orport)
     smartlist_add_asprintf(chunks, "a %s\n",
                            fmt_addrport(&ri->ipv6_addr, ri->ipv6_orport));
diff --git a/src/or/dirvote.h b/src/or/dirvote.h
index 91da4edee..9c7916a9b 100644
--- a/src/or/dirvote.h
+++ b/src/or/dirvote.h
@@ -61,13 +61,6 @@
 /** The highest consensus method that we currently support. */
 #define MAX_SUPPORTED_CONSENSUS_METHOD 28
 
-/** Lowest consensus method where microdesc consensuses omit any entry
- * with no microdesc. */
-#define MIN_METHOD_FOR_MANDATORY_MICRODESC 13
-
-/** 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
 
diff --git a/src/or/networkstatus.c b/src/or/networkstatus.c
index 235b95b70..d7088a167 100644
--- a/src/or/networkstatus.c
+++ b/src/or/networkstatus.c
@@ -1528,7 +1528,7 @@ networkstatus_consensus_has_ipv6(const or_options_t* options)
     return
        cons->consensus_method >= MIN_METHOD_FOR_A_LINES_IN_MICRODESC_CONSENSUS;
   } else {
-    return cons->consensus_method >= MIN_METHOD_FOR_A_LINES;
+    return 1;
   }
 }
 
diff --git a/src/test/test_dir.c b/src/test/test_dir.c
index 6cafa7cb3..e5355069a 100644
--- a/src/test/test_dir.c
+++ b/src/test/test_dir.c
@@ -5771,22 +5771,10 @@ test_dir_networkstatus_consensus_has_ipv6(void *arg)
   /* Test the bounds for A lines in the NS consensus */
   mock_options->UseMicrodescriptors = 0;
 
-  mock_networkstatus->consensus_method = MIN_METHOD_FOR_A_LINES;
+  mock_networkstatus->consensus_method = MIN_SUPPORTED_CONSENSUS_METHOD;
   has_ipv6 = networkstatus_consensus_has_ipv6(get_options());
   tt_assert(has_ipv6);
 
-  mock_networkstatus->consensus_method = MIN_METHOD_FOR_A_LINES + 1;
-  has_ipv6 = networkstatus_consensus_has_ipv6(get_options());
-  tt_assert(has_ipv6);
-
-  mock_networkstatus->consensus_method = MIN_METHOD_FOR_A_LINES + 20;
-  has_ipv6 = networkstatus_consensus_has_ipv6(get_options());
-  tt_assert(has_ipv6);
-
-  mock_networkstatus->consensus_method = MIN_METHOD_FOR_A_LINES - 1;
-  has_ipv6 = networkstatus_consensus_has_ipv6(get_options());
-  tt_assert(!has_ipv6);
-
   /* Test the bounds for A lines in the microdesc consensus */
   mock_options->UseMicrodescriptors = 1;
 
@@ -5795,6 +5783,10 @@ test_dir_networkstatus_consensus_has_ipv6(void *arg)
   has_ipv6 = networkstatus_consensus_has_ipv6(get_options());
   tt_assert(has_ipv6);
 
+  mock_networkstatus->consensus_method = MAX_SUPPORTED_CONSENSUS_METHOD + 20;
+  has_ipv6 = networkstatus_consensus_has_ipv6(get_options());
+  tt_assert(has_ipv6);
+
   mock_networkstatus->consensus_method =
       MIN_METHOD_FOR_A_LINES_IN_MICRODESC_CONSENSUS + 1;
   has_ipv6 = networkstatus_consensus_has_ipv6(get_options());



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