Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  nickm
 Type:  defect   | Status:  closed
 Priority:  High |  Milestone:  Tor:
 |  0.4.0.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-unreached-backport-maybe, 033|  implemented
  -unreached-backport-maybe, 034-unreached-  |  Actual Points:  .3
  backport-maybe, 032-unreached-backport-maybe,  |
  prop297|
Parent ID:   | Points:
 Reviewer:  ahf  |Sponsor:
-+-
Changes (by teor):

 * keywords:
 029-backport-maybe, 033-backport-maybe, 034-backport-maybe, 032
 -unreached-backport-maybe, prop297
 =>
 029-unreached-backport-maybe, 033-unreached-backport-maybe, 034
 -unreached-backport-maybe, 032-unreached-backport-maybe, prop297


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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  nickm
 Type:  defect   | Status:  closed
 Priority:  High |  Milestone:  Tor:
 |  0.4.0.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 033-backport-|  implemented
  maybe, 034-backport-maybe, 032-unreached-  |  Actual Points:  .3
  backport-maybe, prop297|
Parent ID:   | Points:
 Reviewer:  ahf  |Sponsor:
-+-
Changes (by nickm):

 * status:  merge_ready => closed
 * resolution:   => implemented


Comment:

 Merged, and updated torspec as 18fcb9ab42cca4ce963202a22cd1f93f68ecd57c

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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  nickm
 Type:  defect   | Status:
 |  merge_ready
 Priority:  High |  Milestone:  Tor:
 |  0.4.0.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 033-backport-|  Actual Points:  .3
  maybe, 034-backport-maybe, 032-unreached-  |
  backport-maybe, prop297|
Parent ID:   | Points:
 Reviewer:  ahf  |Sponsor:
-+-
Changes (by ahf):

 * status:  needs_review => merge_ready


Comment:

 Very nice. Looks good.

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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  nickm
 Type:  defect   | Status:
 |  needs_review
 Priority:  High |  Milestone:  Tor:
 |  0.4.0.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 033-backport-|  Actual Points:  .3
  maybe, 034-backport-maybe, 032-unreached-  |
  backport-maybe, prop297|
Parent ID:   | Points:
 Reviewer:  ahf  |Sponsor:
-+-
Changes (by dgoulet):

 * reviewer:   => ahf


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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  nickm
 Type:  defect   | Status:
 |  needs_review
 Priority:  High |  Milestone:  Tor:
 |  0.4.0.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 033-backport-|  Actual Points:  .3
  maybe, 034-backport-maybe, 032-unreached-  |
  backport-maybe, prop297|
Parent ID:   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by nickm):

 * keywords:
 029-backport-maybe, 033-backport-maybe, 034-backport-maybe, 032
 -unreached-backport-maybe
 =>
 029-backport-maybe, 033-backport-maybe, 034-backport-maybe, 032
 -unreached-backport-maybe, prop297
 * status:  accepted => needs_review
 * actualpoints:   => .3


Comment:

 See branch `prop297`, PR at https://github.com/torproject/tor/pull/541 .

 This code updates the update_versions script to automatically keep the
 version dates moving forward with each release.  (It also rewrites
 update_versions in Python, to be less horrible.)

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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  nickm
 Type:  defect   | Status:
 |  accepted
 Priority:  High |  Milestone:  Tor:
 |  0.3.6.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 032-backport-|  Actual Points:
  maybe, 033-backport-maybe, 034-backport-maybe  |
Parent ID:   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by nickm):

 * milestone:  Tor: 0.3.5.x-final => Tor: 0.3.6.x-final


Comment:

 On analysis, I think it's safe to defer this to 0.3.6.  This only comes up
 when we are possibly about to ''drop'' support for a protocol, and we
 aren't planning to drop any more protocols in 0.3.5.

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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  nickm
 Type:  defect   | Status:
 |  accepted
 Priority:  High |  Milestone:  Tor:
 |  0.3.5.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 032-backport-|  Actual Points:
  maybe, 033-backport-maybe, 034-backport-maybe  |
Parent ID:   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by nickm):

 * priority:  Medium => High
 * status:  new => accepted
 * owner:  (none) => nickm


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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  (none)
 Type:  defect   | Status:  new
 Priority:  Medium   |  Milestone:  Tor:
 |  0.3.5.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 032-backport-|  Actual Points:
  maybe, 033-backport-maybe, 034-backport-maybe  |
Parent ID:   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by nickm):

 * parent:  #27288 =>


Comment:

 Unparenting.

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Re: [tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  (none)
 Type:  defect   | Status:  new
 Priority:  Medium   |  Milestone:  Tor:
 |  0.3.5.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  029-backport-maybe, 032-backport-|  Actual Points:
  maybe, 033-backport-maybe, 034-backport-maybe  |
Parent ID:  #27288   | Points:
 Reviewer:   |Sponsor:
-+-

Comment (by nickm):

 Proposal 297 is my proposal for what to do here:
 https://gitweb.torproject.org/torspec.git/plain/proposals/297-safer-
 protover-shutdowns.txt

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[tor-bugs] #27735 [Core Tor/Tor]: Tors with cached consensuses can't upgrade to a version that stops supporting a required protocol

[Tor Bug Tracker & Wiki]

#27735: Tors with cached consensuses can't upgrade to a version that stops
supporting a required protocol
-+-
 Reporter:  teor |  Owner:  (none)
 Type:  defect   | Status:  new
 Priority:  Medium   |  Milestone:  Tor: 0.3.5.x-final
Component:  Core |Version:
  Tor/Tor|   Keywords:  029-backport-maybe, 032-backport-
 Severity:  Normal   |  maybe, 033-backport-maybe, 034-backport-maybe
Actual Points:   |  Parent ID:  #27288
   Points:   |   Reviewer:
  Sponsor:   |
-+-
 When Tor loads the cached consensus, it checks the protocols in that
 consensus, and then exits if it does not have any required protocols.
 These checks happen before signatures and expiry are checked. (And before
 trying to get a new consensus.)

 This makes it impossible for a Tor with a cached consensus to stop
 supporting a protocol required in that consensus.

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