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Try to sort the changelog a little more

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Nick Mathewson 2014-04-24 14:24:13 -04:00
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ChangeLog
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@ -2,18 +2,15 @@ Changes in version 0.2.5.4-alpha - 2014-04-??
This release includes several security and performance improvements
for clients and relays, including XXX
This release marks end-of-line for Tor 0.2.2.x; those Tor versions have
accumulated many known flaws; everyone should upgrade.
o Major features (security):
- Block authority signing keys that were used on an authorities
vulnerable to the "heartbleed" bug in openssl (CVE-2014-0160). (We
don't have any evidence that these keys _were_ compromised; we're
doing this to be prudent.) Resolves ticket 11464.
o Deprecated versions:
- Tor 0.2.2.x has reached end-of-life; it has received no patches or
attention for some while. Directory authorities no longer accept
descriptors from Tor relays running any version of Tor prior to
Tor 0.2.3.16-alpha. Resolves ticket 11149.
o Major features (relay performance):
- Faster server-side lookups of rendezvous and introduction point
circuits by using hashtables instead of linear searches over all
@ -56,6 +53,11 @@ Changes in version 0.2.5.4-alpha - 2014-04-??
list is now well-considered, whereas the client list has been
chosen mainly for anti-fingerprinting purposes.) Resolves ticket
11528.
- Update the list of TLS cipehrsuites that a client advertises to
match those advertised by Firefox 28. This enables selection of
(fast) GCM ciphersuites, disables some strange old ciphers, and
disables the ECDH (not to be confused with ECDHE) ciphersuites.
Resolves ticket 11438.
o Major bugfixes (undefined behavior):
- Fix two instances of possible undefined behavior in channeltls.c
@ -72,11 +74,79 @@ Changes in version 0.2.5.4-alpha - 2014-04-??
some miscellaneous errors in our tests and codebase. Fix for bug
11232. Bugfixes on versions back as far as 0.2.1.11-alpha.
o Minor features (Transparent proxy, *BSD):
- Support the ipfw firewall interface for transparent proxy support
on FreeBSD. To enable it, set "TransProxyType ipfw" in your torrc.
Resolves ticket 10267; patch from "yurivict".
- Support OpenBSD's divert-to rules with the pf firewall, when
"TransProxyType pf-divert" is specified. This allows Tor to run a
TransPort transparent proxy port on OpenBSD 4.4 or later without
root privileges. See the pf.conf(5) manual page for information on
configuring pf to use divert-to rules. Closes ticket 10896; patch
from Dana Koch.
o Minor features (security):
- New --enable-expensive-hardening option to turn on security
hardening options that consume nontrivial amounts of CPU and
memory. Right now, this includes AddressSanitizer and UbSan.
Closes ticket 11477.
- If you don't specify MaxMemInQueues yourself, Tor now tries to
pick a good value based on your total system memory. Previously,
the default was always 8 GB. You can still override the default by
setting MaxMemInQueues yourself. Resolves ticket 11396.
o Minor features (log verbosity):
- Demote the message that we give when a flushing connection times
out for too long from NOTICE to INFO. It was usually meaningless.
Resolves ticket 5286.
- Don't log so many notice-level bootstrapping messages at startup
about downloading descriptors. Previously, we'd log a notice
whenever we learned about more routers. Now, we only log a notice
at every 5% of progress. Fixes bug 9963.
o Minor features (relay):
- If a circuit timed out for at least 3 minutes check if we have a
new external IP address the next time we run our routine checks.
If our IP address has changed, then publish a new descriptor with
the new IP address. Resolves ticket 2454.
- Warn less verbosely when receiving a misformed
ESTABLISH_RENDEZVOUS cell. Fixes ticket 11279.
- When we run out of usable circuit IDs on a channel, log only one
warning for the whole channel, and include a description of how
many circuits there were on the channel. Fix for part of ticket
#11553.
o Minor features (controller):
- Make the entire exit policy available from the control port via
GETINFO exit-policy/*. Implements enhancement #7952. Patch from
"rl1987".
- Because of the fix for ticket 11396, the real limit for memory
usage may no longer match the configured MaxMemInQueues value. The
real limit is now exposed via GETINFO limits/max-mem-in-queues.
o Minor features (misc):
- Always check return values for unlink, munmap, UnmapViewOfFile;
check strftime return values more often. In some cases all we can
do is report a warning, but this may help prevent deeper bugs from
going unnoticed. Closes ticket 8787.
o Minor features (bridge client):
- Report a failure to connect to a bridge because its transport type
has no configured pluggable transport as a new type of bootstrap
failure. Resolves ticket 9665. Patch from Fábio J. Bertinatto.
o Minor features (diagnostic):
- Try harder to diagnose a possible cause of bug 7164, which causes
intermittent "microdesc_free() called but md was still referenced"
warnings. We now log more information about the likely error case,
to try to figure out why we might be cleaning a microdescriptor as
old if it's still referenced by a live node.
o Minor bugfixes (logging):
- Log only one message when we start logging in an unsafe way.
Previously, we would log as many messages as we had problems. Fix
for #9870; bugfix on 0.2.5.1-alpha.
- Using the Linux syscall sandbox no longer prevents stack-trace
- Using the Linux seccomp2 sandbox no longer prevents stack-trace
logging on crashes or errors. Fixes part 11465; bugfix on
0.2.5.1-alpha.
- Only report the first fatal boostrap error on a given OR
@ -169,86 +239,11 @@ Changes in version 0.2.5.4-alpha - 2014-04-??
- Stop leaking memory when we successfully resolve a PTR record.
Fixes bug 11437; bugfix on 0.2.4.7-alpha.
o Minor features (Transparent proxy):
- Support the ipfw firewall interface for transparent proxy support
on FreeBSD. To enable it, set "TransProxyType ipfw" in your torrc.
Resolves ticket 10267; patch from "yurivict".
- Support OpenBSD's divert-to rules with the pf firewall, when
"TransProxyType pf-divert" is specified. This allows Tor to run a
TransPort transparent proxy port on OpenBSD 4.4 or later without
root privileges. See the pf.conf(5) manual page for information on
configuring pf to use divert-to rules. Closes ticket 10896; patch
from Dana Koch.
o Minor features (security):
- New --enable-expensive-hardening option to turn on security
hardening options that consume nontrivial amounts of CPU and
memory. Right now, this includes AddressSanitizer and UbSan.
Closes ticket 11477.
- If you don't specify MaxMemInQueues yourself, Tor now tries to
pick a good value based on your total system memory. Previously,
the default was always 8 GB. You can still override the default by
setting MaxMemInQueues yourself. Resolves ticket 11396.
o Minor features (usability):
- Demote the message that we give when a flushing connection times
out for too long from NOTICE to INFO. It was usually meaningless.
Resolves ticket 5286.
- Don't log so many notice-level bootstrapping messages at startup
about downloading descriptors. Previously, we'd log a notice
whenever we learned about more routers. Now, we only log a notice
at every 5% of progress. Fixes bug 9963.
o Minor features (performance, compatibility):
- Update the list of TLS cipehrsuites that a client advertises to
match those advertised by Firefox 28. This enables selection of
(fast) GCM ciphersuites, disables some strange old ciphers, and
disables the ECDH (not to be confused with ECDHE) ciphersuites.
Resolves ticket 11438.
o Minor bugfixes (IPv6):
- When using DNSPort and AutomapHostsOnResolve, respond to AAAA
requests with AAAA automapped answers. Fixes bug 10468; bugfix on
0.2.4.7-alpha.
o Minor features (relay):
- If a circuit timed out for at least 3 minutes check if we have a
new external IP address the next time we run our routine checks.
If our IP address has changed, then publish a new descriptor with
the new IP address. Resolves ticket 2454.
- Warn less verbosely when receiving a misformed
ESTABLISH_RENDEZVOUS cell. Fixes ticket 11279.
- When we run out of usable circuit IDs on a channel, log only one
warning for the whole channel, and include a description of how
many circuits there were on the channel. Fix for part of ticket
#11553.
o Minor features (controller):
- Make the entire exit policy available from the control port via
GETINFO exit-policy/*. Implements enhancement #7952. Patch from
"rl1987".
- Because of the fix for ticket 11396, the real limit for memory
usage may no longer match the configured MaxMemInQueues value. The
real limit is now exposed via GETINFO limits/max-mem-in-queues.
o Minor features (misc):
- Always check return values for unlink, munmap, UnmapViewOfFile;
check strftime return values more often. In some cases all we can
do is report a warning, but this may help prevent deeper bugs from
going unnoticed. Closes ticket 8787.
o Minor features (bridge client):
- Report a failure to connect to a bridge because its transport type
has no configured pluggable transport as a new type of bootstrap
failure. Resolves ticket 9665. Patch from Fábio J. Bertinatto.
o Minor features (diagnostic):
- Try harder to diagnose a possible cause of bug 7164, which causes
intermittent "microdesc_free() called but md was still referenced"
warnings. We now log more information about the likely error case,
to try to figure out why we might be cleaning a microdescriptor as
old if it's still referenced by a live node.
o Documentation:
- Build the torify.1 manpage again. Previously, we were only trying
to build it when also building tor-fw-helper. That's why we didn't
@ -268,6 +263,12 @@ Changes in version 0.2.5.4-alpha - 2014-04-??
- Change our use of the ENUM_BF macro to avoid declarations that
confuse Doxygen.
o Deprecated versions:
- Tor 0.2.2.x has reached end-of-life; it has received no patches or
attention for some while. Directory authorities no longer accept
descriptors from Tor relays running any version of Tor prior to
Tor 0.2.3.16-alpha. Resolves ticket 11149.
o Testing:
- New macros in test.h to simplify writting mock-functions for unit
tests. Part of ticket 11507. Patch from Dana Koch.