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Report fallback directory detail changes when rebuilding list

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As well as the existing reports of IPv6 address additions or removals,
the script now warns when keys change but IPv4:ORPort or
IPv6:IPv6ORPort remain the same.

Existing checks for other whitelist detail changes have also
been re-worded and upgraded to warnings.

This makes it easier for changes to be identified so operators can
be contacted to confirm whether the change is stable.
This commit is contained in:
teor (Tim Wilson-Brown) 2016-04-16 01:43:11 +10:00 committed by Nick Mathewson
parent de5def32a1
commit ba7691071e
2 changed files with 26 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
changes/fallbacks-201604
View File

@ -1,8 +1,9 @@
o Minor enhancements (fallback directory mirrors):
- Give each fallback the same weight for client selection.
Restrict fallbacks to one per operator.
Report fallback directory detail changes when rebuilding list.
Add new fallback directory mirrors to the whitelist.
Update fallback directories based on the latest OnionOO data.
Many other minor simplifications and fixes.
Closes tasks 17158, 17905, 18749, and bug 18689 on
tor 0.2.8.1-alpha; patch by "teor".
Closes tasks 17158, 17905, 18749, bug 18689, and fixes part of
bug 18812 on tor 0.2.8.1-alpha; patch by "teor".

46
scripts/maint/updateFallbackDirs.py
View File

@ -806,48 +806,48 @@ class Candidate(object):
ipv6 address and port (if present)
If the fallback has an ipv6 key, the whitelist line must also have
it, and vice versa, otherwise they don't match. """
ipv6 = None
if self.has_ipv6():
ipv6 = '%s:%d'%(self.ipv6addr, self.ipv6orport)
for entry in relaylist:
if entry['id'] != self._fpr:
# can't log here, every relay's fingerprint is compared to the entry
if entry['id'] != self._fpr:
# can't log here unless we match an IP and port, because every relay's
# fingerprint is compared to every entry's fingerprint
if entry['ipv4'] == self.dirip and int(entry['orport']) == self.orport:
logging.warning('%s excluded: has OR %s:%d changed fingerprint to ' +
'%s?', entry['id'], self.dirip, self.orport,
self._fpr)
if self.has_ipv6() and entry.has_key('ipv6') and entry['ipv6'] == ipv6:
logging.warning('%s excluded: has OR %s changed fingerprint to ' +
'%s?', entry['id'], ipv6, self._fpr)
continue
if entry['ipv4'] != self.dirip:
logging.info('%s is not in the whitelist: fingerprint matches, but ' +
'IPv4 (%s) does not match entry IPv4 (%s)',
self._fpr, self.dirip, entry['ipv4'])
logging.warning('%s excluded: has it changed IPv4 from %s to %s?',
self._fpr, entry['ipv4'], self.dirip)
continue
if int(entry['dirport']) != self.dirport:
logging.info('%s is not in the whitelist: fingerprint matches, but ' +
'DirPort (%d) does not match entry DirPort (%d)',
self._fpr, self.dirport, int(entry['dirport']))
logging.warning('%s excluded: has it changed DirPort from %s:%d to ' +
'%s:%d?', self._fpr, self.dirip, int(entry['dirport']),
self.dirip, self.dirport)
continue
if int(entry['orport']) != self.orport:
logging.info('%s is not in the whitelist: fingerprint matches, but ' +
'ORPort (%d) does not match entry ORPort (%d)',
self._fpr, self.orport, int(entry['orport']))
logging.warning('%s excluded: has it changed ORPort from %s:%d to ' +
'%s:%d?', self._fpr, self.dirip, int(entry['orport']),
self.dirip, self.orport)
continue
ipv6 = None
if self.has_ipv6():
ipv6 = '%s:%d'%(self.ipv6addr, self.ipv6orport)
if entry.has_key('ipv6') and self.has_ipv6():
# if both entry and fallback have an ipv6 address, compare them
if entry['ipv6'] != ipv6:
logging.info('%s is not in the whitelist: fingerprint matches, ' +
'but IPv6 (%s) does not match entry IPv6 (%s)',
self._fpr, ipv6, entry['ipv6'])
logging.warning('%s excluded: has it changed IPv6 ORPort from %s ' +
'to %s?', self._fpr, entry['ipv6'], ipv6)
continue
# if the fallback has an IPv6 address but the whitelist entry
# doesn't, or vice versa, the whitelist entry doesn't match
elif entry.has_key('ipv6') and not self.has_ipv6():
logging.info('%s is not in the whitelist: fingerprint matches, but ' +
'it has no IPv6, and entry has IPv6 (%s)', self._fpr,
entry['ipv6'])
logging.warning('%s excluded: has it lost its former IPv6 address %s?',
self._fpr, entry['ipv6'])
continue
elif not entry.has_key('ipv6') and self.has_ipv6():
logging.info('%s is not in the whitelist: fingerprint matches, but ' +
'it has IPv6 (%s), and entry has no IPv6', self._fpr,
ipv6)
logging.warning('%s excluded: has it gained an IPv6 address %s?',
self._fpr, ipv6)
continue