Opened 2 years ago

Closed 11 months ago

#19990 closed defect (wontfix)

EntryNodes is incompatible with IPv6-only bootstrap

Reported by: teor Owned by: teor
Priority: Medium Milestone: Tor: 0.3.3.x-final
Component: Core Tor/Tor Version: Tor: 0.2.8.1-alpha
Severity: Normal Keywords: ipv6 tor-client robustness bootstrap sponsor8-maybe
Cc: Actual Points: 0.1
Parent ID: #20916 Points: 2
Reviewer: Sponsor:

Description

When UseMicrodescriptors is 1, tor clients which bootstrap over IPv6 have to get descriptors from the fallback directories, because there are no IPv6 addresses in the microdescriptor consensus.

When EntryNodes is set, it excludes all the fallback directories, meaning that IPv6 clients can't bootstrap.

This can be tested with:

src/or/tor DataDirectory /tmp/tor.$$ SOCKSPort 0 EntryNodes x ClientUseIPv4 0

Child Tickets

Change History (9)

comment:1 Changed 2 years ago by teor

Milestone: Tor: 0.2.???Tor: 0.3.???

Milestone renamed

comment:2 Changed 23 months ago by nickm

Keywords: tor-03-unspecified-201612 added
Milestone: Tor: 0.3.???Tor: unspecified

Finally admitting that 0.3.??? was a euphemism for Tor: unspecified all along.

comment:3 Changed 17 months ago by nickm

Keywords: tor-03-unspecified-201612 removed

Remove an old triaging keyword.

comment:4 Changed 16 months ago by nickm

Keywords: tor-client robustness bootstrap sponsor8-maybe added

comment:5 Changed 11 months ago by teor

Milestone: Tor: unspecifiedTor: 0.3.3.x-final
Owner: set to teor
Parent ID: #20916
Status: newassigned

#20916 will also fix this, we can close this when it closes.

comment:6 Changed 11 months ago by teor

Status: assignedneeds_information

We need to test this once we've merged the rest of #20916.

comment:7 Changed 11 months ago by teor

We need to test that setting EntryNodes non-fallback and ClientUseIPv4 0 works on a network that is running consensus method 27 or 28.

Does EntryNodes block authorities?
I guess it does?

We might need to wait to test this on the live network, or we might need to add fallbacks to chutney.

comment:8 Changed 11 months ago by Sebastian

Or we say that users get to keep the pieces when they set that option without including a fallback?

comment:9 Changed 11 months ago by teor

Actual Points: 0.1
Resolution: wontfix
Status: needs_informationclosed

Well, they currently get to keep the pieces, because we ignore some kinds of EntryNodes settings until we have a consensus.

So you're right, I think we close this one as "this will get better when everyone runs 0.3.3, but you still get to keep the pieces if you set EntryNodes badly".

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