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Don't log supported-protover warnings if consensus is older than Tor.

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Previously we would warn in this case... but there's really no
justification for doing so, and it can only cause confusion.

Fixes bug #40281; bugfix on 0.4.0.1-alpha.
This commit is contained in:
Nick Mathewson 2021-02-08 11:52:53 -05:00
parent 49c61c1bb8
commit 56f1cab9c1
2 changed files with 14 additions and 1 deletions
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6
changes/bug40281 Normal file
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@ -0,0 +1,6 @@
o Minor bugfixes (logging):
- Avoid a spurious log message about missing subprotocol versions, when
the consensus that we're reading from is older than the current
release. . Previously we had made this message nonfatal in this case,
but in practice, it is never relevant when the consensus is older than
the current release. Fixes bug 40281; bugfix on 0.4.0.1-alpha.

9
src/feature/nodelist/networkstatus.c
View File

@ -2713,6 +2713,13 @@ networkstatus_check_required_protocols(const networkstatus_t *ns,
const bool consensus_postdates_this_release =
ns->valid_after >= tor_get_approx_release_date();
if (! consensus_postdates_this_release) {
// We can't meaningfully warn about this case: This consensus is from
// before we were released, so whatever is says about required or
// recommended versions may no longer be true.
return 0;
}
tor_assert(warning_out);
if (client_mode) {
@ -2730,7 +2737,7 @@ networkstatus_check_required_protocols(const networkstatus_t *ns,
"%s on the Tor network. The missing protocols are: %s",
func, missing);
tor_free(missing);
return consensus_postdates_this_release ? 1 : 0;
return 1;
}
if (! protover_all_supported(recommended, &missing)) {