tor/changes/bug23470

  o Minor bugfix (relay address resolution):
    - Avoid unnecessary calls to directory_fetches_from_authorities()
      on relays. This avoids spurious address resolutions and
      descriptor rebuilds. This is a mitigation for 21789. The original
      bug was introduced in commit 35bbf2e as part of prop210.
      Fixes 23470 in 0.2.8.1-alpha.
Stop relays calling directory_fetches_from_authorities on dir downloads This change refactors find_dl_schedule() to only call dependent functions as needed. In particular, directory_fetches_from_authorities() only needs to be called on clients. Stopping spurious directory_fetches_from_authorities() calls on every download on public relays has the following impacts: * fewer address resolution attempts, particularly those mentioned in 21789 * fewer descriptor rebuilds * fewer log messages, particularly those limited in 20610 Fixes 23470 in 0.2.8.1-alpha. The original bug was introduced in commit 35bbf2e as part of prop210. 2017-09-11 06:21:48 +02:00			`o Minor bugfix (relay address resolution):`
			`- Avoid unnecessary calls to directory_fetches_from_authorities()`
			`on relays. This avoids spurious address resolutions and`
			`descriptor rebuilds. This is a mitigation for 21789. The original`
			`bug was introduced in commit 35bbf2e as part of prop210.`
			`Fixes 23470 in 0.2.8.1-alpha.`