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Disable consensus methods before 25.

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Consensus method 25 is the oldest one supported by any stable
version of 0.2.9, which is our current most-recent LTS.  Thus, by
proposal 290, they should be removed.

This commit does not actually remove the code to implement these
methods: it only makes it so authorities will no longer support
them.  I'll remove the backend code for them in later commits.
This commit is contained in:
Nick Mathewson 2018-04-09 14:31:51 -04:00
parent e58555135a
commit 69347f48e0
3 changed files with 10 additions and 14 deletions
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8
src/or/dirvote.c
View File

@ -3951,13 +3951,7 @@ static const struct consensus_method_range_t {
int low;
int high;
} microdesc_consensus_methods[] = {
{MIN_SUPPORTED_CONSENSUS_METHOD, MIN_METHOD_FOR_A_LINES - 1},
{MIN_METHOD_FOR_A_LINES, MIN_METHOD_FOR_P6_LINES - 1},
{MIN_METHOD_FOR_P6_LINES, MIN_METHOD_FOR_NTOR_KEY - 1},
{MIN_METHOD_FOR_NTOR_KEY, MIN_METHOD_FOR_ID_HASH_IN_MD - 1},
{MIN_METHOD_FOR_ID_HASH_IN_MD, MIN_METHOD_FOR_ED25519_ID_IN_MD - 1},
{MIN_METHOD_FOR_ED25519_ID_IN_MD,
MIN_METHOD_FOR_NO_A_LINES_IN_MICRODESC - 1},
{MIN_SUPPORTED_CONSENSUS_METHOD, MIN_METHOD_FOR_NO_A_LINES_IN_MICRODESC - 1},
{MIN_METHOD_FOR_NO_A_LINES_IN_MICRODESC, MAX_SUPPORTED_CONSENSUS_METHOD},
{-1, -1}
};

2
src/or/dirvote.h
View File

@ -56,7 +56,7 @@
#define ROUTERSTATUS_FORMAT_NO_CONSENSUS_METHOD 0
/** The lowest consensus method that we currently support. */
#define MIN_SUPPORTED_CONSENSUS_METHOD 13
#define MIN_SUPPORTED_CONSENSUS_METHOD 25
/** The highest consensus method that we currently support. */
#define MAX_SUPPORTED_CONSENSUS_METHOD 28

14
src/test/test_dir.c
View File

@ -2917,8 +2917,9 @@ gen_routerstatus_for_umbw(int idx, time_t now)
rs->addr = 0x99008801;
rs->or_port = 443;
rs->dir_port = 8000;
/* all flags but running cleared */
/* all flags but running and valid cleared */
rs->is_flagged_running = 1;
rs->is_valid = 1;
/*
* This one has measured bandwidth below the clip cutoff, and
* so shouldn't be clipped; we'll have to test that it isn't
@ -2991,8 +2992,9 @@ gen_routerstatus_for_umbw(int idx, time_t now)
rs->addr = 0xC0000203;
rs->or_port = 500;
rs->dir_port = 1999;
/* all flags but running cleared */
/* all flags but running and valid cleared */
rs->is_flagged_running = 1;
rs->is_valid = 1;
/*
* This one has unmeasured bandwidth below the clip cutoff, and
* so shouldn't be clipped; we'll have to test that it isn't
@ -3014,7 +3016,7 @@ gen_routerstatus_for_umbw(int idx, time_t now)
if (vrs) {
vrs->microdesc = tor_malloc_zero(sizeof(vote_microdesc_hash_t));
tor_asprintf(&vrs->microdesc->microdesc_hash_line,
"m 9,10,11,12,13,14,15,16,17 "
"m 25,26,27,28 "
"sha256=xyzajkldsdsajdadlsdjaslsdksdjlsdjsdaskdaaa%d\n",
idx);
}
@ -3040,7 +3042,7 @@ vote_tweaks_for_umbw(networkstatus_t *v, int voter, time_t now)
smartlist_clear(v->supported_methods);
/* Method 17 is MIN_METHOD_TO_CLIP_UNMEASURED_BW_KB */
smartlist_split_string(v->supported_methods,
"1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17",
"25 26 27 28",
NULL, 0, -1);
/* If we're using a non-default clip bandwidth, add it to net_params */
if (alternate_clip_bw > 0) {
@ -3202,9 +3204,9 @@ test_routerstatus_for_umbw(routerstatus_t *rs, time_t now)
tt_assert(!rs->is_fast);
tt_assert(!rs->is_possible_guard);
tt_assert(!rs->is_stable);
/* (If it wasn't running it wouldn't be here) */
/* (If it wasn't running and valid it wouldn't be here) */
tt_assert(rs->is_flagged_running);
tt_assert(!rs->is_valid);
tt_assert(rs->is_valid);
tt_assert(!rs->is_named);
/* This one should have measured bandwidth below the clip cutoff */
tt_assert(rs->has_bandwidth);