#33235: Proposal 312: 3.2.1. Test Address torrc Option Configurations ---------------------------+------------------------------------ Reporter: teor | Owner: teor Type: task | Status: assigned Priority: Medium | Milestone: Tor: 0.4.4.x-final Component: Core Tor/Tor | Version: Severity: Normal | Resolution: Keywords: prop312, ipv6 | Actual Points: Parent ID: #33049 | Points: 1 Reviewer: | Sponsor: Sponsor55-must ---------------------------+------------------------------------
Old description: > Once we have implemented IPv6 Addresses in #33233, and automatic IPv6 > ORPorts in #33246, tor should support the following Address > configurations: > A. IPv4 Address / hostname (for IPv6 only), > B. IPv6 Address / hostname (for IPv4 only), > C. IPv4 Address only / try to guess IPv6, then check its reachability > (see section 4.3.1 in [Proposal 311: Relay IPv6 Reachability]), and > D. IPv6 Address only / guess IPv4, then its reachability must succeed. > There are also similar configurations where a hostname is configured, but > it only provides IPv4 or IPv6 addresses. > > Combination C is the most common legacy configuration. We want to > support the following outcomes for legacy configurations: > * automatic upgrades to guessed and reachable IPv6 addresses, > * continuing to operate on IPv4 when the IPv6 address can't be guessed, > and > * continuing to operate on IPv4 when the IPv6 address has been guessed, > but it is unreachable. > > See proposal 312, section 3.2.1, testing notes: > https://gitweb.torproject.org/torspec.git/tree/proposals/312-relay-auto- > ipv6-addr.txt#n270 New description: This ticket depends on IPv6 Addresses in #33233, and automatic IPv6 ORPorts in #33246. We should support the following combinations of address literals and hostnames: Legacy configurations: A. No configured Address option B. Address IPv4 literal C. Address hostname (use IPv4 and IPv6 DNS addresses) New configurations: D. Address IPv6 literal E. Address IPv4 literal / Address IPv6 literal F. Address hostname / Address hostname (use IPv4 and IPv6 DNS addresses) G. Address IPv4 literal / Address hostname (only use IPv6 DNS addresses) H. Address hostname (only use IPv4 DNS addresses) / Address IPv6 literal If we can't find an IPv4 or IPv6 address using the configured Address options: * No IPv4: guess IPv4, and its reachability must succeed. * No IPv6: guess IPv6, publish if reachability succeeds. Combinations A and B are the most common legacy configurations. We want to support the following outcomes for all legacy configurations: * automatic upgrades to guessed and reachable IPv6 addresses, * continuing to operate on IPv4 when the IPv6 address can't be guessed, and * continuing to operate on IPv4 when the IPv6 address has been guessed, but it is unreachable. See proposal 312, section 3.2.1, testing notes: https://gitweb.torproject.org/torspec.git/tree/proposals/312-relay-auto- ipv6-addr.txt#n270 -- Comment (by teor): Update proposal and ticket. -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33235#comment:2> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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