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Start on an 0.3.0.1-alpha changelog
This commit is contained in:
Nick Mathewson
parent
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ChangeLog
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ChangeLog
@ -1,4 +1,223 @@
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Changes in version 0.3.0.1-alpha - 2016-??-??
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Changes in version 0.3.0.1-alpha - 2016-12-??
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Tor 0.3.0.1-alpha is the first alpha release in the 0.3.0 development
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series. It strengthens Tor's link and circuit handshakes by
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identifying relays by their Ed25519 keys, improves the algorithm that
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clients use to choose and maintain their list of guards, and includes
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additional backend support for the next-generation hidden service
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design. It also contains numerous other small features and
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improvements to security, correctness, and performance.
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Below are the changes since 0.2.9.8.
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o Major features (next-generation hidden services):
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- Relays can now handle v3 ESTABLISH_INTRO cells as specified by
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prop224 aka "Next Generation Hidden Services". Service and clients
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don't yet use this code functionnality. It marks another step
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towards prop224 deployment. Resolves ticket 19043. Initial code by
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Alec Heifetz.
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- Tor relays now support the HSDir version 3 protocol meaning they
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can store and serve v3 descriptors. This is part of the next
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generation onion service work detailled in proposal 224. The tor
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daemon also contains all the necessary code to encode and decode a
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v3 descriptor but it's currently only used by the directory
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subsystem. Closes ticket 17238.
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o Major features (protocol, ed25519 identity keys):
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- Tor relays now use Ed25519 to prove their Ed25519 identities and
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to one another, and to clients. This algorithm is faster and more
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secure than the RSA-based handshake we've been doing until now.
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Implements the second big part of proposal 220; Closes
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ticket 15055.
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- Clients now support including Ed25519 identity keys in the EXTEND2
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cells they generate. By default, this is controlled by a consensus
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parameter, currently disabled. You can turn this feature on for
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testing by setting ExtendByEd25519ID in your configuration. This
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might make your traffic appear different than the traffic
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generated by other users, however. Implements part of ticket
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15056; part of proposal 220.
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- Relays now understand requests to extend to other relays by their
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Ed25519 identity keys. When an Ed25519 identity key is included in
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an EXTEND2 cell, the relay will only extend the circuit if the
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other relay can prove ownership of that identity. Implements part
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of ticket 15056; part of proposal 220.
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o Major bugfixes (scheduler):
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- Fix an issue where the ewma_cmp_cmux() function would never
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consider circuit policies to be different. This bug caused the
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channel scheduler to behave more or less randomly, rather than
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preferring channels with higher-priority circuits. Fixes bug
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20459; bugfix on 0.2.6.2-alpha.
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o Minor features (controller):
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- When HSFETCH arguments cannot be parsed, say "Invalid argument"
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rather than "unrecognized." Closes ticket 20389; patch from
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Ivan Markin.
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o Minor features (diagnostic, directory client):
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- Warn if we find an unexpected inconsistency in directory download
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status objects. Prevents some negative consequences of bug 20593.
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o Minor features (directory authority):
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- Add a new authority-only AuthDirTestEd25519LinkKeys option (on by
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default) to control whether authorities should try to probe relays
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by their Ed25519 link keys. This option will go away in a few
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releases--unless we encounter major trouble in our ed25519 link
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protocol rollout, in which case it will serve as a safety option.
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o Minor features (directory cache):
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- Relays and bridges will now refuse to serve the consensus they
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have if they know it is too old for a client to use. Closes
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ticket 20511.
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o Minor features (ed25519 link handshake):
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- Advertise support for the ed25519 link handshake using the
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subprotocol-versions mechanism, so that clients can tell which
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relays can identity themselves by Ed25519 ID. Closes ticket 20552.
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o Minor features (fingerprinting resistence, authentication):
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- Extend the length of RSA keys used for TLS link authentication to
|
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2048 bits. (These weren't used for forward secrecy; for forward
|
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secrecy, we used P256.) Closes ticket 13752.
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o Minor features (infrastructure):
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- Implement smartlist_add_strdup() function. Replaces the use of
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smartlist_add(sl, tor_strdup(str)). Closes ticket 20048.
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o Minor features (unit tests):
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- Add tests for networkstatus_compute_bw_weights_v10.
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- Add unit tests circuit_predict_and_launch_new.
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- Extract dummy_origin_circuit_new so it can be used by other
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test functions.
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o Minor bugfix (configuration):
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- Accept non-space whitespace characters after the severity level in
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the `Log` option. Fixes bug 19965; bugfix on 0.2.1.1-alpha.
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o Minor bugfix (hidden services):
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- Change ephemeral service checks in `rendservice.c` to use the new
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`rend_service_is_ephemeral` helper function. Fixes bug 20853;
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bugfix on bug 20526; not in any released version of Tor.
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o Minor bugfix (util):
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- When finishing writing a file to disk, if we were about to replace
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the file with the temporary file created before and we fail to
|
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replace it, remove the temporary file so it doesn't stay on disk.
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Fixes bug 20646; bugfix on tor-0.2.0.7-alpha. Patch by fk.
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|
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o Minor bugfixes (client):
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- When clients that use bridges start up with a cached consensus on
|
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disk, they were ignoring it and downloading a new one. Now they
|
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use the cached one. Fixes bug 20269; bugfix on 0.2.3.12-alpha.
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o Minor bugfixes (configuration):
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- Support "TByte" and "TBytes" units in options given in bytes.
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"TB", "terabyte(s)", "TBit(s)" and "terabit(s)" were already
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supported. Fixes bug 20622; bugfix on 0.2.0.14-alpha.
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o Minor bugfixes (consensus weight):
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- Add new consensus method that initializes bw weights to 1 instead
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of 0. This prevents a zero weight from making it all the way to
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the end (happens in small testing networks) and causing an error.
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Fixes bug 14881; bugfix on 0.2.2.17-alpha.
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o Minor bugfixes (descriptors):
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- Correctly recognise downloaded full descriptors as valid, even
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when using microdescriptors as circuits. This affects clients with
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FetchUselessDescriptors set, and may affect directory authorities.
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Fixes bug 20839; bugfix on commit 6083276 in 0.2.3.2-alpha.
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o Minor bugfixes (directory downloads):
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- Download all consensus flavors, descriptors, and authority
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certificates when FetchUselessDescriptors is set, regardless of
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whether tor is a directory cache or not. Fixes bug 20667; bugfix
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on all recent tor versions.
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o Minor bugfixes (directory system):
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- Bridges and relays now use microdescriptors (like clients do)
|
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rather than old-style router descriptors. Now bridges will blend
|
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in with clients in terms of the circuits they build. Fixes bug
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6769; bugfix on 0.2.3.2-alpha.
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o Minor bugfixes (ed25519 certificates):
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- Correctly interpret ed25519 certificates that would expire some
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time after 19 Jan 2038. Fixes bug 20027; bugfix on 0.2.7.2-alpha.
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|
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o Minor bugfixes (hidden services):
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- Stop ignoring duplicate hidden services when validating: this
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could lead to a crash when those services were created. Fixes bug
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20860; bugfix on 20559; not in any released version of tor.
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- Stop ignoring misconfigured hidden services. Instead, refuse to
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start tor until the misconfigurations have been corrected. Fixes
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bug 20559; bugfix on multiple commits in 0.2.7.1-alpha
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and earlier.
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|
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o Minor bugfixes (memory leak at exit):
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- Fix a small harmless memory leak at exit of the previously unused
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RSA->Ed identity cross-certificate. Fixes bug 17779; bugfix
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on 0.2.7.2-alpha.
|
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|
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o Minor bugfixes (Windows):
|
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- Check for getpagesize before using it to mmap files. This fixes
|
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compilation in some MinGW environments. Fixes bug 20530; bugfix on
|
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0.1.2.1-alpha. Reported by "ice".
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o Code simplification and refactoring:
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- Abolish all global guard context in entrynodes.c; replace with new
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guard_selection_t structure as preparation for proposal 271.
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Closes ticket 19858.
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- Introduce rend_service_is_ephemeral() that tells if given onion
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service is ephemeral. Replace unclear NULL-checkings for service
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directory with this function. Closes ticket 20526.
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- Extract magic numbers in circuituse.c into defined variables.
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- Refactor circuit_is_available_for_use to remove unnecessary check.
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- Refactor circuit_predict_and_launch_new for readability and
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testability. Closes ticket 18873.
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- Refactor large if statement in purpose_needs_anonymity to use
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switch statement instead. Closes part of ticket 20077.
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- Refactor the hashing API to return negative values for errors, as
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is done as throughout the codebase. Closes ticket 20717.
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- Remove data structures that were used to index or_connection
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objects by their RSA identity digests. These structures are fully
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redundant with the similar structures used in the
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channel abstraction.
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- Remove duplicate code in the channel_write_*cell() functions.
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Closes ticket 13827; patch from Pingl.
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- Remove redundant behavior of is_sensitive_dir_purpose, refactor to
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use only purpose_needs_anonymity. Closes part of ticket 20077.
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- The code to generate and parse EXTEND and EXTEND2 cells has been
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replaced with code automatically generated by the
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"trunnel" utility.
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o Documentation:
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- Include the "TBits" unit in Tor's man page. Fixes part of bug
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20622; bugfix on tor-0.2.5.1-alpha.
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- Change '1' to 'weight_scale' in consensus bw weights calculation
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comments, as that is reality. Closes ticket 20273. Patch
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from pastly.
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- Set the default value from 250 KBytes to 2 MBytes for
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AuthDirGuardBWGuarantee in the man page which is what the code is
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using; Fixes bug 20435; bugfix on tor-0.2.5.6-alpha.
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- Stop the man page from ncorrectly stating that HiddenServiceDir
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must already exist. This is not true. Fixes 20486.
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- Clarify that when `ClientRejectInternalAddresses` is enabled
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(which is the default), multicast DNS hostnames for machines on
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the local network (of the form *.local) are also rejected. Closes
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ticket 17070.
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o Removed features:
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- The AuthDirMaxServersPerAuthAddr option no longer exists: The same
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limit for relays running on a single IP applies to authority IP
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addresses as well as to non-authority IP addresses. Closes
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ticket 20960.
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- The UseDirectoryGuards torrc options is no longer present: all
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users that use entry guards will also use directory guards.
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Related to proposal 271; implements part of ticket 20831.
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o Testing:
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- New unit tests for tor_htonll(). Closes ticket 19563. Patch
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from "overcaffeinated".
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- Perform the coding style checks when running the tests and fail
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when coding style violations are found. Closes ticket 5500.
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Changes in version 0.2.8.12 - 2016-12-19
|
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@ -1,8 +0,0 @@
|
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o Minor bugfixes (consensus weight):
|
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- Add new consensus method that initializes bw weights to 1 instead of 0. This
|
||||
prevents a zero weight from making it all the way to the end (happens in
|
||||
small testing networks) and causing an error. Fixes bug 14881; bugfix
|
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on 0.2.2.17-alpha.
|
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|
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o Minor features (unit tests):
|
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- Add tests for networkstatus_compute_bw_weights_v10.
|
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@ -1,4 +0,0 @@
|
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o Documentation (SOCKS connections):
|
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- Clarify that when `ClientRejectInternalAddresses` is enabled (which is the
|
||||
default), multicast DNS hostnames for machines on the local network (of
|
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the form *.local) are also rejected. Closes ticket 17070.
|
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@ -1,3 +0,0 @@
|
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o Minor bugfix (configuration):
|
||||
- Accept non-space whitespace characters after the severity level in the
|
||||
`Log` option. Fixes bug 19965; bugfix on 0.2.1.1-alpha.
|
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@ -1,4 +0,0 @@
|
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o Documentation (comments):
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- Change '1' to 'weight_scale' in consensus bw weights calculation
|
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comments, as that is reality. Closes ticket 20273. Patch from pastly.
|
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|
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@ -1,3 +0,0 @@
|
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o Minor feature (directory cache):
|
||||
- Relays and bridges will now refuse to serve the consensus they have if
|
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they know it is too old for a client to use. Closes ticket 20511.
|
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@ -1,5 +0,0 @@
|
||||
o Code simplification and refactoring:
|
||||
- Introduce rend_service_is_ephemeral() that tells if given onion
|
||||
service is ephemeral. Replace unclear NULL-checkings for service
|
||||
directory with this function.
|
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Closes ticket 20526.
|
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@ -1,4 +0,0 @@
|
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o Minor bugfix (hidden services):
|
||||
- Change ephemeral service checks in `rendservice.c` to use the new
|
||||
`rend_service_is_ephemeral` helper function. Fixes bug 20853; bugfix on
|
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bug 20526; not in any released version of Tor.
|
||||
@ -1,3 +0,0 @@
|
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o Code simplification and refactoring:
|
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- Remove duplicate code in the channel_write_*cell() functions.
|
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Closes ticket 13827; patch from Pingl.
|
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@ -1,6 +0,0 @@
|
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o Minor bugfixes (leak at exit):
|
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- Fix a small harmless memory leak at exit of the previously unused
|
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RSA->Ed identity cross-certificate. Fixes bug 17779; bugfix on
|
||||
0.2.7.2-alpha.
|
||||
|
||||
|
||||
@ -1,5 +0,0 @@
|
||||
o Major features (hidden services):
|
||||
- Relays can now handle v3 ESTABLISH_INTRO cells as specified by prop224
|
||||
aka "Next Generation Hidden Services". Service and clients don't yet use
|
||||
this code functionnality. It marks another step towards prop224
|
||||
deployment. Resolves ticket 19043. Initial code by Alec Heifetz.
|
||||
@ -1,3 +0,0 @@
|
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o Testing:
|
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- New unit tests for tor_htonll(). Closes ticket 19563. Patch from
|
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"overcaffeinated".
|
||||
@ -1,3 +0,0 @@
|
||||
o Minor bugfixes (ed25519 certificates):
|
||||
- Correctly interpret ed25519 certificates that would expire some
|
||||
time after 19 Jan 2038. Fixes bug 20027; bugfix on 0.2.7.2-alpha.
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor features (infrastructure):
|
||||
- Implement smartlist_add_strdup() function. Replaces the use of
|
||||
smartlist_add(sl, tor_strdup(str)). Closes ticket 20048.
|
||||
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor bugfixes (client):
|
||||
- When clients that use bridges start up with a cached consensus
|
||||
on disk, they were ignoring it and downloading a new one. Now they
|
||||
use the cached one. Fixes bug 20269; bugfix on 0.2.3.12-alpha.
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor features (controller):
|
||||
- When HSFETCH arguments cannot be parsed, say "Invalid argument"
|
||||
rather than "unrecognized." Closes ticket 20389; patch from
|
||||
Ivan Markin.
|
||||
@ -1,4 +0,0 @@
|
||||
o Documentation (man page):
|
||||
- Set the default value from 250 KBytes to 2 MBytes for
|
||||
AuthDirGuardBWGuarantee in the man page which is what the code is using;
|
||||
Fixes bug 20435; bugfix on tor-0.2.5.6-alpha.
|
||||
@ -1,6 +0,0 @@
|
||||
o Major bugfixes (scheduler):
|
||||
- Fix an issue where the ewma_cmp_cmux() function would never consider
|
||||
circuit policies to be different. This bug caused the channel scheduler
|
||||
to behave more or less randomly, rather than preferring channels with
|
||||
higher-priority circuits.
|
||||
Fixes bug 20459; bugfix on 0.2.6.2-alpha.
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor bugfixes (Windows):
|
||||
- Check for getpagesize before using it to mmap files. This fixes
|
||||
compilation in some MinGW environments. Fixes bug 20530; bugfix on
|
||||
0.1.2.1-alpha. Reported by "ice".
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor bugfixes (hidden services):
|
||||
- Stop ignoring misconfigured hidden services. Instead, refuse to start
|
||||
tor until the misconfigurations have been corrected.
|
||||
Fixes bug 20559; bugfix on multiple commits in 0.2.7.1-alpha and earlier.
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor features (diagnostic, directory client):
|
||||
- Warn if we find an unexpected inconsistency in directory download
|
||||
status objects. Prevents some negative consequences of bug 20593.
|
||||
|
||||
@ -1,8 +0,0 @@
|
||||
o Minor bugfixes (configuration):
|
||||
- Support "TByte" and "TBytes" units in options given in bytes.
|
||||
"TB", "terabyte(s)", "TBit(s)" and "terabit(s)" were already
|
||||
supported. Fixes bug 20622; bugfix on 0.2.0.14-alpha.
|
||||
|
||||
o Minor bugfixes (documentation):
|
||||
- Include the "TBits" unit in Tor's man page. Fixes part of bug
|
||||
20622; bugfix on tor-0.2.5.1-alpha.
|
||||
@ -1,5 +0,0 @@
|
||||
o Minor bugfix (util):
|
||||
- When finishing writing a file to disk, if we were about to replace the
|
||||
file with the temporary file created before and we fail to replace it,
|
||||
remove the temporary file so it doesn't stay on disk. Fixes bug 20646;
|
||||
bugfix on tor-0.2.0.7-alpha. Patch by fk.
|
||||
@ -1,5 +0,0 @@
|
||||
o Minor bugfixes (directory downloads):
|
||||
- Download all consensus flavors, descriptors, and authority certificates
|
||||
when FetchUselessDescriptors is set, regardless of whether tor is a
|
||||
directory cache or not.
|
||||
Fixes bug 20667; bugfix on all recent tor versions.
|
||||
@ -1,5 +0,0 @@
|
||||
o Minor bugfixes (descriptors):
|
||||
- Correctly recognise downloaded full descriptors as valid, even when
|
||||
using microdescriptors as circuits. This affects clients with
|
||||
FetchUselessDescriptors set, and may affect directory authorities.
|
||||
Fixes bug 20839; bugfix on commit 6083276 in 0.2.3.2-alpha.
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor bugfixes (hidden services):
|
||||
- Stop ignoring duplicate hidden services when validating: this could
|
||||
lead to a crash when those services were created.
|
||||
Fixes bug 20860; bugfix on 20559; not in any released version of tor.
|
||||
@ -1,5 +0,0 @@
|
||||
o Minor bugfixes (directory system):
|
||||
- Bridges and relays now use microdescriptors (like clients do)
|
||||
rather than old-style router descriptors. Now bridges will blend in
|
||||
with clients in terms of the circuits they build. Fixes bug 6769;
|
||||
bugfix on 0.2.3.2-alpha.
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor features (fingerprinting resistence, authentication):
|
||||
- Extend the length of RSA keys used for TLS link authentication to
|
||||
2048 bits. (These weren't used for forward secrecy; for forward
|
||||
secrecy, we used P256.) Closes ticket 13752.
|
||||
@ -1,6 +0,0 @@
|
||||
o Major features (protocol, Ed25519):
|
||||
- Tor relays now use Ed25519 to prove their Ed25519 identities and
|
||||
Ed25519 to one another, and to clients. This algorithm is faster
|
||||
and more secure than the RSA-based handshake we've been doing until
|
||||
now. Implements the second big part of proposal 220; Closes ticket
|
||||
15055.
|
||||
@ -1,28 +0,0 @@
|
||||
o Major features (ed25519 identity keys):
|
||||
- Relays now understand requests to extend to other relays
|
||||
by their Ed25519 identity keys. When an Ed25519 identity key
|
||||
is included in an EXTEND2 cell, the relay will only extend
|
||||
the circuit if the other relay can prove ownership of that identity.
|
||||
Implements part of ticket 15056; part of proposal 220.
|
||||
- Clients now support including Ed25519 identity keys in the EXTEND2
|
||||
cells they generate. By default, this is controlled by a consensus
|
||||
parameter, currently disabled. You can turn this feature on for
|
||||
testing by setting ExtendByEd25519ID in your configuration. This might
|
||||
make your traffic appear different than the traffic generated by other
|
||||
users, however.
|
||||
Implements part of ticket 15056; part of proposal 220.
|
||||
|
||||
o Code simplification and refactoring:
|
||||
- The code to generate and parse EXTEND and EXTEND2 cells has
|
||||
been replaced with code automatically generated by the "trunnel"
|
||||
utility.
|
||||
- Remove data structures that were used to index or_connection objects by
|
||||
their RSA identity digests. These structures are fully redundant with
|
||||
the similar structures used in the channel abstraction.
|
||||
|
||||
o Minor features (directory authority):
|
||||
- Add a new authority-only AuthDirTestEd25519LinkKeys option (on by
|
||||
default) to control whether authorities should try to probe relays by
|
||||
their Ed25519 link keys. This option will go away in a few
|
||||
releases--unless we encounter major trouble in our ed25519 link
|
||||
protocol rollout, in which case it will serve as a safety option.
|
||||
@ -1,6 +0,0 @@
|
||||
o Major features (onion services):
|
||||
- Tor relays now support the HSDir version 3 protocol meaning they can
|
||||
store and serve v3 descriptors. This is part of the next generation
|
||||
onion service work detailled in proposal 224. The tor daemon also
|
||||
contains all the necessary code to encode and decode a v3 descriptor but
|
||||
it's currently only used by the directory subsystem. Closes ticket 17238.
|
||||
@ -1,4 +0,0 @@
|
||||
o Minor features (ed25519 link handshake):
|
||||
- Advertise support for the ed25519 link handshake using the
|
||||
subprotocol-versions mechanism, so that clients can tell which
|
||||
relays can identity themselves by Ed25519 ID. Closes ticket 20552.
|
||||
@ -1,10 +0,0 @@
|
||||
o Code simplification and refactoring:
|
||||
- Refactor circuit_predict_and_launch_new for readability and
|
||||
testability. Closes ticket 18873.
|
||||
- Extract magic numbers in circuituse.c into defined variables.
|
||||
- Refactor circuit_is_available_for_use to remove unnecessary check.
|
||||
|
||||
o Minor features (unit tests):
|
||||
- Extract dummy_origin_circuit_new so it can be used by other test
|
||||
functions.
|
||||
- Add unit tests circuit_predict_and_launch_new.
|
||||
@ -1,4 +0,0 @@
|
||||
o Code simplification and refactoring (guards):
|
||||
- Abolish all global guard context in entrynodes.c; replace with new
|
||||
guard_selection_t structure as preparation for proposal 271. Closes
|
||||
ticket 19858.
|
||||
@ -1,5 +0,0 @@
|
||||
o Code simplification and refactoring:
|
||||
- Remove redundant behavior of is_sensitive_dir_purpose, refactor to use
|
||||
only purpose_needs_anonymity. Closes part of ticket 20077.
|
||||
- Refactor large if statement in purpose_needs_anonymity to use switch
|
||||
statement instead. Closes part of ticket 20077.
|
||||
@ -1,3 +0,0 @@
|
||||
o Documentation (Onion Services):
|
||||
- tor's man page incorrectly states that HiddenServiceDir must already
|
||||
exist. This is not true. Fixes 20486.
|
||||
@ -1,3 +0,0 @@
|
||||
o Code simplification and refactoring:
|
||||
- Refactor the hashing API to return negative values for errors, as is done
|
||||
as throughout the codebase. Closes ticket 20717.
|
||||
@ -1,6 +0,0 @@
|
||||
o Removed features:
|
||||
- The UseDirectoryGuards torrc options is
|
||||
no longer present: all users that use entry guards will also use
|
||||
directory guards. Related to proposal 271; implements part of
|
||||
ticket 20831.
|
||||
|
||||
@ -1,5 +0,0 @@
|
||||
o Removed features:
|
||||
- The AuthDirMaxServersPerAuthAddr option no longer exists: The same
|
||||
limit for relays running on a single IP applies to authority IP
|
||||
addresses as well as to non-authority IP addresses. Closes ticket
|
||||
20960.
|
||||
@ -1,3 +0,0 @@
|
||||
o Testing:
|
||||
- Perform the coding style checks when running the tests and fail when
|
||||
coding style violations are found. Closes ticket 5500.
|
||||
Loading…
Reference in New Issue
Block a user