[tor-bugs] #25960 [Core Tor/Tor]: Allow additional header lines in bandwidth measurements documents

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#25960: Allow additional header lines in bandwidth measurements documents
-------------------------------------------------+-------------------------
 Reporter:  juga                                 |          Owner:  juga
     Type:  enhancement                          |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.5.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  035-proposed, bwauth, 029-backport,  |  Actual Points:
  031-backport, 032-backport, 033-backport       |
Parent ID:  #25925                               |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by teor):

 * keywords:  bwauth, 029-backport, 031-backport, 032-backport, 033-backport
     =>
     035-proposed, bwauth, 029-backport, 031-backport, 032-backport,
     033-backport
 * milestone:  Tor: 0.3.4.x-final => Tor: 0.3.5.x-final


Comment:

 Next week is the last week of 0.3.4 features, and this feature is still
 being discussed on tor-dev at .
 https://lists.torproject.org/pipermail/tor-dev/2018-May/013154.html

 We should decide whether to put the small or the large version of this
 ticket on the roadmap.
 The small change (format 1.1.0) adds backwards-compatible headers and
 silences warnings.
 The large change (format 2.0.0) turns the bandwidth file into a directory
 document-style format, and rewrites the code using the directory parsing
 functions.

 Here are the things we need to do for the large change:
 * The new format should have a new torrc option.
 * Tor should be modified to support the new format, and we should put time
 on the roadmap for people to work on implementing, testing, or reviewing
 it.
 * Either we should backport the new format to the latest stable release,
 or sbws should produce both formats.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25960#comment:9>
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