edit changelog a bit
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Nick Mathewson
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101
ChangeLog
101
ChangeLog
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Changes in version 0.3.2.7-rc - 2017-12-1?
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Tor 0.3.2.7-rc fixes various bugs in earlier versions of Tor, including
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some that could affect reliability or correctness.
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Tor 0.3.2.7-rc fixes various bugs in earlier versions of Tor,
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including some that could affect reliability or correctness.
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This is the first release candidate in the 0.3.2 series. If we find no
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new bugs or regression here, then the first stable 0.3.2. release will be
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nearly identical to this.
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This is the first release candidate in the 0.3.2 series. If we find no
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new bugs or regression here, then the first stable 0.3.2. release will
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be nearly identical to this.
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o Major bugfixes (circuit prediction):
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- Fix circuit prediction logic so that a client doesn't treat a stream as
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being "handled" by a circuit if that circuit already has isolation
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settings on it that might make it incompatible with the stream. This
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change should make Tor clients more responsive by improving their
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chances of having a pre-created circuit ready for use when a new client
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request arrives. Fixes bug 18859; bugfix on 0.2.3.3-alpha.
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- Fix circuit prediction logic so that a client doesn't treat a port
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as being "handled" by a circuit if that circuit already has
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isolation settings on it. This change should make Tor clients more
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responsive by improving their chances of having a pre-created
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circuit ready for use when a request arrives. Fixes bug 18859;
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bugfix on 0.2.3.3-alpha.
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o Minor features (logging):
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- Provide better warnings when the getrandom() syscall fails.
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Closes ticket 24500.
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- Provide better warnings when the getrandom() syscall fails. Closes
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ticket 24500.
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o Minor features (portability):
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- Tor now compiles correctly on arm64 with libseccomp-dev installed.
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(It doesn't yet work with the sandbox enabled.) Closes ticket 24424.
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o Minor bugfix (KIST scheduler):
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- Downgrade a warning to log info when the monotonic time diff is
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negative. This can happen on platform not supporting monotonic time. The
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scheduler recovers from this without any problem. Fixes bug 23696;
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bugfix on 0.3.2.1-alpha.
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(It doesn't yet work with the sandbox enabled.) Closes
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ticket 24424.
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o Minor bugfixes (bridge clients, bootstrap):
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- Retry directory downloads when we get our first bridge descriptor
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during bootstrap or while reconnecting to the network. Keep retrying
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every time we get a bridge descriptor, until we have a reachable bridge.
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Fixes bug 24367; bugfix on 0.2.0.3-alpha.
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during bootstrap or while reconnecting to the network. Keep
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retrying every time we get a bridge descriptor, until we have a
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reachable bridge. Fixes part of bug 24367; bugfix on 0.2.0.3-alpha.
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- Stop delaying bridge descriptor fetches when we have cached bridge
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descriptors. Instead, only delay bridge descriptor fetches when we
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have at least one reachable bridge.
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Fixes bug 24367; bugfix on 0.2.0.3-alpha.
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- Stop delaying directory fetches when we have cached bridge descriptors.
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Instead, only delay bridge descriptor fetches when all our bridges are
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definitely unreachable.
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Fixes bug 24367; bugfix on 0.2.0.3-alpha.
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have at least one reachable bridge. Fixes part of bug 24367;
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bugfix on 0.2.0.3-alpha.
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- Stop delaying directory fetches when we have cached bridge
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descriptors. Instead, only delay bridge descriptor fetches when
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all our bridges are definitely unreachable. Fixes part of bug
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24367; bugfix on 0.2.0.3-alpha.
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o Minor bugfixes (compilation):
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- Fix a signed/unsigned comparison warning introduced by our
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fix to TROVE-2017-009. Fixes bug 24480; bugfix on 0.2.5.16.
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- Fix a signed/unsigned comparison warning introduced by our fix to
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TROVE-2017-009. Fixes bug 24480; bugfix on 0.2.5.16.
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o Minor bugfixes (correctness):
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- Fix several places in our codebase where a C compiler would be likely
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to eliminate a check, based on assuming that undefined behavior had not
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happened elsewhere in the code. These cases are usually a sign of
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redundant checking, or dubious arithmetic. Found by Georg Koppen using
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the "STACK" tool from Wang, Zeldovich, Kaashoek, and
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Solar-Lezama. Fixes bug 24423; bugfix on various Tor versions.
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- Fix several places in our codebase where a C compiler would be
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likely to eliminate a check, based on assuming that undefined
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behavior had not happened elsewhere in the code. These cases are
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usually a sign of redundant checking or dubious arithmetic. Found
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by Georg Koppen using the "STACK" tool from Wang, Zeldovich,
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Kaashoek, and Solar-Lezama. Fixes bug 24423; bugfix on various
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Tor versions.
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o Minor bugfixes (hidden service v3):
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- Fix a race between the circuit close and free where the service would
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launch a new intro circuit after the close, and then fail to register it
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before the free of the previously closed circuit. This was making the
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service unable to find the established intro circuit and thus not upload
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its descriptor. It can make a service unavailable for up to 24 hours.
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Fixes bug 23603; bugfix on 0.3.2.1-alpha.
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o Minor bugfixes (scheduler):
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- Properly set the scheduler state of an unopened channel in the KIST
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scheduler main loop. This prevents a harmless but annoying log warning.
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Fixes bug 24502; bugfix on 0.3.2.4-alpha.
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o Minor bugfixes (onion service v3):
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- Fix a race where an onion service would launch a new intro circuit
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after closing an old one, but fail to register it before freeing
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the previously closed circuit. This bug was making the service
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unable to find the established intro circuit and thus not upload
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its descriptor, thus making a service unavailable for up to 24
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hours. Fixes bug 23603; bugfix on 0.3.2.1-alpha.
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o Minor bugfixes (scheduler, KIST):
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- Avoid a possible integer overflow when computing the available space on
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the TCP buffer of a channel. This has no security implications but can
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make KIST not behave properly by allowing more cells on a already
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- Properly set the scheduler state of an unopened channel in the
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KIST scheduler main loop. This prevents a harmless but annoying
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log warning. Fixes bug 24502; bugfix on 0.3.2.4-alpha.
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- Avoid a possible integer overflow when computing the available
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space on the TCP buffer of a channel. This had no security
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implications; but could make KIST allow too many cells on a
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saturated connection. Fixes bug 24590; bugfix on 0.3.2.1-alpha.
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- Downgrade to "info" a harmless warning about the monotonic time
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moving backwards: This can happen on platform not supporting
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monotonic time. Fixes bug 23696; bugfix on 0.3.2.1-alpha.
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Changes in version 0.3.2.6-alpha - 2017-12-01
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