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@ -1,4 +1,5 @@
Changes in version 0.2.6.1-alpha - 2014-??-??
o Major features (bridges):
- Expose the outgoing upstream HTTP/SOCKS proxy to pluggable
transports if they are configured via the "TOR_PT_PROXY" enviorment
@ -6,33 +7,28 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
o Major features (client performance, hidden services):
- Allow clients to use optimistic data when connecting to a hidden
service, which should cut out the initial round-trip for client-
side programs including Tor Browser. (Now that Tor 0.2.2.x is
obsolete, all hidden services should support server-side
optimistic data.) See proposal 181 for details. Implements ticket
13211. - Add an option to overwrite logs (TruncateLogFile). Closes
ticket #5583.
service, which should remove a round-trip from hidden service
initialization. See proposal 181 for details. Implements ticket
13211.
o Major features (directory system):
- Upon receiving a server descriptor, microdescriptor, extrainfo
document, or other object that is unparseable, if its digest
matches what we expected, then mark it as not to be downloaded
- Upon receiving an unparseable directory object,if its digest
matches what we expected, then don't try to download it
again. Previously, when we got a descriptor we didn't like, we
would keep trying to download it over and over. Closes
ticket 11243.
o Major features (sample torrc):
- Add a new, infrequently-changed "torrc.minimal". This file's
purpose is similar to torrc.sample, but it is meant to be small
and change as infrequently as possible, for the benefit of users
- Add a new, infrequently-changed "torrc.minimal". This file
is similar to torrc.sample, but it will
change as infrequently as possible, for the benefit of users
whose systems prompt them for intervention whenever a default
configuration file is changed. Making this change allows us to
update torrc.sample to be a more generally useful "sample torrc".
o Major bugfixes (directory authorities):
- Relays should not be assigned the HSDir flag if they are
considered invalid. Also, do not assign the HSDir flag to relays
that are currently hibernating. Fixes #12573. Bugfix
- Do not assign the HSDir flag to relays if they are
not Valid, or currently hibernating. Fixes #12573. Bugfix
on tor-0.2.0.10-alpha
o Major bugfixes (directory bandwidth performance):
@ -47,29 +43,22 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
have finished using them. Resolves ticket 13477.
o Minor features (security, out-of-memory handling):
- When handling a low-memory situation, allocate less memory for
- When handling an out-of-memory condition, allocate less memory for
teporary data structures. Fixes issue 10115.
- When closing an edge connection because we've run out of memory,
also count the amount of memory that any tunnelled directory
connection attached to that connection had consumed. Part of
ticket 11792.
- When considering whether we're running low on memory, consider
memory that was allocated as part of zlib buffers as well. Count
that memory as reclaimed by our OOM handler. Part of ticket 11792.
- When handling out-of-memory conditions, also look at non-tunnneled
directory connections, and kill the ones that have had data
sitting on them for the longest. Part of ticket 11792.
- When handling an out-of-memory condition, consider more types of
buffers, including those on directory connections, and zlib
buffers. Resolves ticket 11792.
o Minor features:
- When identity keypair is generated for first time, log a
congratulatory message that points to the new relay lifecycle
document. Implements feature 10427.
document on the wiki. Implements feature 10427.
o Minor features (client):
- Clients are now willing to send optimistic circuit data (before
they receive a 'connected' cell) to relays of any version. We used
to only do it for relays running 0.2.3.1-alpha or later, but now
all relays are new enough. Resolves ticket 13153.
- Clients are now willing to send optimistic data (before
they receive a 'connected' cell) to relays of any version. (Relays
without support for optimistic data are no longer supported on the
Tor network.) Resolves ticket 13153.
o Minor features (directory authorities):
- Don't list relays with a bandwidth estimate of 0 in the consensus.
@ -81,14 +70,19 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
method. Previously, it fell back to method 1. Neither of these is
likely to get enough signatures, but "fall back to favorite"
doesn't require us to maintain support an obsolete consensus
method. Implements another part of proposal 215.
method. Implements part of proposal 215.
o Minor features (logging):
- On unix, you can now use named pipes as the target of the Log
option, and other options that try to append to files. Closes
- On unix-like systems, you can now use named pipes as the target of the
Log option, and other options that try to append to files. Closes
ticket 12061. Patch from "carlo von lynX".
- When opening a log file at startup, send it every log message that
we generated between startup and opening it. Closes ticket 6938.
we generated between startup and opening it. Previously, log messages
that were generated before opening the log file were only logged to
stdout. Closes ticket 6938.
- Add a TruncateLogFile option to overwrite logs instead of appending to
them. Closes
ticket #5583.
o Minor features (portability, Solaris):
- Threads are no longer disabled by default on Solaris; we believe
@ -100,18 +94,18 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
getsockname(). This ensures that the controller command "GETINFO
address" will report the correct value. Resolves ticket 11582.
Patch from "ra".
- A new AccountingRule option lets you set whether you'd like the
AccountingMax value to be applied separately to inbound and
- A new AccountingRule option lets Relays set whether they'd like
AccountingMax to be applied separately to inbound and
outbound traffic, or applied to the sum of inbound and outbound
traffic. Resolves ticket 961. Patch by "chobe".
o Minor features (testing networks):
- Add the TestingDirAuthVoteExit option, a list of nodes to vote
Exit for regardless of their uptime, bandwidth, or exit policy.
- Add the TestingDirAuthVoteExit option, which lists nodes to assign the
"Exit" flag regardless of their uptime, bandwidth, or exit policy.
TestingTorNetwork must be set for this option to have any effect.
Works around an issue where authorities would take up to 35
minutes to give nodes the Exit flag in a test network, despite
short consensus intervals. Partially implements ticket 13161.
minutes to give nodes the Exit flag in a test network. Partially
implements ticket 13161.
o Minor features (validation):
- Check all date/time values passed to tor_timegm and
@ -122,14 +116,14 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
writes out. Fixes bug 13476.
o Minor bugfixes (bridge clients):
- When a bridge has been configured without an identity digest (not
- When configured to use a bridge without an identity digest (not
recommended), avoid launching an extra channel to it when
bootstrapping. Fixes bug 7733; bugfix on 0.2.4.4-alpha.
o Minor bugfixes (bridges):
- When DisableNetwork is set, do not launch pluggable transport
plugins, and if any are running already, terminate the existing
instances. Fixes bug 13213; bugfix on 0.2.3.6-alpha.
plugins, and if any are running, terminate them.
Fixes bug 13213; bugfix on 0.2.3.6-alpha.
o Minor bugfixes (C correctness):
- Fix several instances of possible integer overflow/underflow/NaN.
@ -137,10 +131,9 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
from "teor".
- In circuit_build_times_calculate_timeout() in circuitstats.c,
avoid dividing by zero in the pareto calculations. This traps
under clang -fsanitize=undefined-trap
-fsanitize-undefined-trap-on-error. Fixes bug 13290; bugfix
under clang's "undefined-trap" sanitizer. Fixes bug 13290; bugfix
on tor-0.2.2.2-alpha.
- Fix an instance of integer overflow in format_time_interval().
- Fix an integer overflow in format_time_interval().
Fixes bug 13393; bugfix on 0.2.0.10-alpha.
- Set the correct day of year value when the system's localtime(_r)
or gmtime(_r) functions fail to set struct tm. Not externally
@ -149,17 +142,14 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
with 32-bit time_t. Fixes bug 13476; bugfix on 0.0.2pre14.
o Minor bugfixes (client):
- Fix node selection logic in smartlist_choose_node_by_bandwidth()
so that onion routers with BadExit flag are not considered to be
- Fix smartlist_choose_node_by_bandwidth()
so that relays with the BadExit flag are not considered
worthy candidates. Fixes bug 13066; bugfix on 0.1.2.3-alpha.
- Use the consensus schedule for downloading consensuses, and not
the generic schedule. Fixes bug 11679; bugfix on 0.2.2.6-alpha.
- Handle unsupported SOCKS5 requests properly by responding with
'Command not supported' reply message before closing a TCP
connection to the user. Fixes bug 12971; bugfix on 0.0.2pre13.
- Handle malformed SOCKS5 requests properly by responding with an
appropriate error message before closing a TCP connection to the
user. Fixes bug 13314; bugfix on 0.0.2pre13.
- Handle unsupported or malformed SOCKS5 requests properly by responding
with the appropriate error message before closing the connection.
Fixes bugs 12971 and 13314; bugfix on 0.0.2pre13.
o Minor bugfixes (client, torrc):
- Stop modifying the value of our DirReqStatistics torrc option just
@ -185,10 +175,10 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
- When running as a v3 directory authority, advertise that you serve
extra-info documents so that clients who want them can find them
from you too. Fixes part of bug 11683; bugfix on 0.2.0.1-alpha.
- Bitwise check the BRIDGE_DIRINFO flag rather than using equality.
Fixes a (potential) bug where directories offering BRIDGE_DIRINFO
- Check the BRIDGE_DIRINFO flag bitwise rather than using equality.
This fixes a potential bug where directories offering BRIDGE_DIRINFO
and some other flag (i.e. microdescriptors or extrainfo) would be
ignored when looking for bridge directories. Partially fixes bug
ignored when looking for bridges. Partially fixes bug
13163; bugfix on 0.2.0.7-alpha.
o Minor bugfixes (networking):
@ -199,7 +189,7 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
o Minor bugfixes (relay):
- When generating our family list, remove spaces from around the
entries there. Fixes bug 12728; bugfix on 0.2.1.7-alpha.
entries. Fixes bug 12728; bugfix on 0.2.1.7-alpha.
- If our previous bandwidth estimate was 0 bytes, allow publishing a
new relay descriptor immediately. Fixes bug 13000; bugfix
on 0.1.1.6-alpha.
@ -228,16 +218,15 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
on 0.0.2pre26.
o Minor bugfixes (zlib):
- When trying to finalize a zlib stream where we have already
exhausted all the input bytes and we need more bytes in the output
buffer, do not report the write as successful. Fixes bug 11824;
- Avoid truncating a zlib stream when trying to finalize it with an empty
output buffer. Fixes bug 11824;
bugfix on 0.1.1.23.
o Build fixes:
- Allow our configure script to build correctly with autoconf 2.62
again. Fixes bug 12693; bugfix on 0.2.5.2-alpha.
- Improve configure script error message to make it clear that
compilation has failed and that user has to either add
- Improve the error message from ./configure to make it clear that
when asciidoc has not been found, the user will have to either add
--disable-asciidoc argument or install asciidoc. Resolves
ticket 13228.
@ -245,7 +234,7 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
- Change the entry_is_live() function to take named bitfield
elements instead of an unnamed list of booleans. Closes
ticket 12202.
- Refactoring and unit-testing entry_is_time_to_retry() in
- Refactor and unit-test entry_is_time_to_retry() in
entrynodes.c. Resolves ticket 12205.
- Use calloc and reallocarray functions in preference to multiply-
then-malloc. This makes it less likely for us to fall victim to an
@ -261,20 +250,20 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
bug 13284.
o Code simplifications and refactoring:
- Reworking API of policies_parse_exit_policy() function to use a
bitmask to represent parsing options instead of a confusing mess
- Rework the API of policies_parse_exit_policy() to use a
bitmask to represent parsing options, instead of a confusing mess
of booleans. Resolves ticket 8197.
- Introducing helper function to parse ExitPolicy in
- Introduce a helper function to parse ExitPolicy in
or_options_t structure.
o Documentation:
- Add a doc/TUNING document with tips for handling large numbers of
TCP connections when running busy Tor relay. Update warning
TCP connections when running busy Tor relay. Update the warning
message to point to this file when running out of sockets
operating system is allowing to use simultaneously. Resolves
ticket 9708.
o New compiler requirements:
o New compiler and system requirements:
- Tor 0.2.6.x requires that your compiler support more of the C99
language standard than before. The 'configure' script now detects
whether your compiler supports C99 mid-block declarations and
@ -284,9 +273,16 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
number of people need to build Tor with compilers that don't
bother implementing a 15-year-old standard. Closes ticket 13233.
- Tor no longer supports systems without threading support. When we
began working on Tor, there were several systems that didn't have
threads, or where the thread support wasn't able to run the
threads of a single process on multiple CPUs. That no longer
holds: every system where Tor needs to run well now has threading
support. Resolves ticket 12439.
o Removed code:
- We no longer remind the user about obsolete configuration options
that have been obsolete since 0.2.3.x or later. Patch by
- We no longer remind the user about configuration options
that have been obsolete since 0.2.3.x or earlier. Patch by
Adrien Bak.
o Removed features:
@ -299,18 +295,12 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
- The "AuthDirRejectUnlisted" option no longer has any effect, as
the fingerprints file (approved-routers) has been deprecated.
- Directory authorities do not support being Naming dirauths
anymore. The "NamingAuthoritativeDir" config option has
been obsoleted.
anymore. The "NamingAuthoritativeDir" config option is now
obsolete.
- Directory authorities do not support giving out the BadDirectory
flag anymore.
- Clients don't understand the BadDirectory flag in the consensus
anymore, and ignore it.
- Tor no longer supports systems without threading support. When we
began working on Tor, there were several systems that didn't have
threads, or where the thread support wasn't able to run the
threads of a single process on multiple CPUs. That no longer
holds: every system where Tor needs to run well now has threading
support. Resolves ticket 12439.
o Removed platform support:
- We no longer include special code to build on Windows CE; as far
@ -346,7 +336,7 @@ Changes in version 0.2.6.1-alpha - 2014-??-??
service. Patch by intrigeri; resolves ticket 13196.
o Removed features (directory authorities):
- Remove code that prevented authorities from listing Tor servers
- Remove code that prevented authorities from listing Tor relays
affected by CVE-2011-2769 as guards. These servers are already
rejected altogether due to the minimum version requirement of
0.2.3.16-alpha. Closes ticket 13152.