ChangeLog 1.6 MB

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  1. Changes in version 0.4.2.6 - 2020-01-30
  2. This is the second stable release in the 0.4.2.x series. It backports
  3. several bugfixes from 0.4.3.1-alpha, including some that had affected
  4. the Linux seccomp2 sandbox or Windows services. If you're running with
  5. one of those configurations, you'll probably want to upgrade;
  6. otherwise, you should be fine with 0.4.2.5.
  7. o Major bugfixes (linux seccomp sandbox, backport from 0.4.3.1-alpha):
  8. - Correct how we use libseccomp. Particularly, stop assuming that
  9. rules are applied in a particular order or that more rules are
  10. processed after the first match. Neither is the case! In
  11. libseccomp <2.4.0 this lead to some rules having no effect.
  12. libseccomp 2.4.0 changed how rules are generated, leading to a
  13. different ordering, which in turn led to a fatal crash during
  14. startup. Fixes bug 29819; bugfix on 0.2.5.1-alpha. Patch by
  15. Peter Gerber.
  16. - Fix crash when reloading logging configuration while the
  17. experimental sandbox is enabled. Fixes bug 32841; bugfix on
  18. 0.4.1.7. Patch by Peter Gerber.
  19. o Minor bugfixes (correctness checks, backport from 0.4.3.1-alpha):
  20. - Use GCC/Clang's printf-checking feature to make sure that
  21. tor_assertf() arguments are correctly typed. Fixes bug 32765;
  22. bugfix on 0.4.1.1-alpha.
  23. o Minor bugfixes (logging, crash, backport from 0.4.3.1-alpha):
  24. - Avoid a possible crash when trying to log a (fatal) assertion
  25. failure about mismatched magic numbers in configuration objects.
  26. Fixes bug 32771; bugfix on 0.4.2.1-alpha.
  27. o Minor bugfixes (testing, backport from 0.4.3.1-alpha):
  28. - When TOR_DISABLE_PRACTRACKER is set, do not apply it to the
  29. test_practracker.sh script. Doing so caused a test failure. Fixes
  30. bug 32705; bugfix on 0.4.2.1-alpha.
  31. - When TOR_DISABLE_PRACTRACKER is set, log a notice to stderr when
  32. skipping practracker checks. Fixes bug 32705; bugfix
  33. on 0.4.2.1-alpha.
  34. o Minor bugfixes (windows service, backport from 0.4.3.1-alpha):
  35. - Initialize the publish/subscribe system when running as a windows
  36. service. Fixes bug 32778; bugfix on 0.4.1.1-alpha.
  37. o Testing (backport from 0.4.3.1-alpha):
  38. - Turn off Tor's Sandbox in Chutney jobs, and run those jobs on
  39. Ubuntu Bionic. Turning off the Sandbox is a work-around, until we
  40. fix the sandbox errors in 32722. Closes ticket 32240.
  41. - Re-enable the Travis CI macOS Chutney build, but don't let it
  42. prevent the Travis job from finishing. (The Travis macOS jobs are
  43. slow, so we don't want to have it delay the whole CI process.)
  44. Closes ticket 32629.
  45. o Testing (continuous integration, backport from 0.4.3.1-alpha):
  46. - Use zstd in our Travis Linux builds. Closes ticket 32242.
  47. Changes in version 0.4.2.5 - 2019-12-09
  48. This is the first stable release in the 0.4.2.x series. This series
  49. improves reliability and stability, and includes several stability and
  50. correctness improvements for onion services. It also fixes many smaller
  51. bugs present in previous series.
  52. Per our support policy, we will support the 0.4.2.x series for nine
  53. months, or until three months after the release of a stable 0.4.3.x:
  54. whichever is longer. If you need longer-term support, please stick
  55. with 0.3.5.x, which will we plan to support until Feb 2022.
  56. Per our support policy, we will support the 0.4.2.x series for nine
  57. months, or until three months after the release of a stable 0.4.3.x:
  58. whichever is longer. If you need longer-term support, please stick
  59. with 0.3.5.x, which will we plan to support until Feb 2022.
  60. Below are the changes since 0.4.1.4-rc. For a complete list of changes
  61. since 0.4.1.5, see the ReleaseNotes file.
  62. o Minor features (geoip):
  63. - Update geoip and geoip6 to the December 3 2019 Maxmind GeoLite2
  64. Country database. Closes ticket 32685.
  65. o Testing:
  66. - Require C99 standards-conforming code in Travis CI, but allow GNU
  67. gcc extensions. Also activates clang's -Wtypedef-redefinition
  68. warnings. Build some jobs with -std=gnu99, and some jobs without.
  69. Closes ticket 32500.
  70. Changes in version 0.4.2.4-rc - 2019-11-15
  71. Tor 0.4.2.4-rc is the first release candidate in its series. It fixes
  72. several bugs from earlier versions, including a few that would result in
  73. stack traces or incorrect behavior.
  74. o Minor features (build system):
  75. - Make pkg-config use --prefix when cross-compiling, if
  76. PKG_CONFIG_PATH is not set. Closes ticket 32191.
  77. o Minor features (geoip):
  78. - Update geoip and geoip6 to the November 6 2019 Maxmind GeoLite2
  79. Country database. Closes ticket 32440.
  80. o Minor bugfixes (client, onion service v3):
  81. - Fix a BUG() assertion that occurs within a very small race window
  82. between when a client intro circuit opens and when its descriptor
  83. gets cleaned up from the cache. The circuit is now closed early,
  84. which will trigger a re-fetch of the descriptor and continue the
  85. connection. Fixes bug 28970; bugfix on 0.3.2.1-alpha.
  86. o Minor bugfixes (code quality):
  87. - Fix "make check-includes" so it runs correctly on out-of-tree
  88. builds. Fixes bug 31335; bugfix on 0.3.5.1-alpha.
  89. o Minor bugfixes (configuration):
  90. - Log the option name when skipping an obsolete option. Fixes bug
  91. 32295; bugfix on 0.4.2.1-alpha.
  92. o Minor bugfixes (crash):
  93. - When running Tor with an option like --verify-config or
  94. --dump-config that does not start the event loop, avoid crashing
  95. if we try to exit early because of an error. Fixes bug 32407;
  96. bugfix on 0.3.3.1-alpha.
  97. o Minor bugfixes (directory):
  98. - When checking if a directory connection is anonymous, test if the
  99. circuit was marked for close before looking at its channel. This
  100. avoids a BUG() stacktrace if the circuit was previously closed.
  101. Fixes bug 31958; bugfix on 0.4.2.1-alpha.
  102. o Minor bugfixes (shellcheck):
  103. - Fix minor shellcheck errors in the git-*.sh scripts. Fixes bug
  104. 32402; bugfix on 0.4.2.1-alpha.
  105. - Start checking most scripts for shellcheck errors again. Fixes bug
  106. 32402; bugfix on 0.4.2.1-alpha.
  107. o Testing (continuous integration):
  108. - Use Ubuntu Bionic images for our Travis CI builds, so we can get a
  109. recent version of coccinelle. But leave chutney on Ubuntu Trusty,
  110. until we can fix some Bionic permissions issues (see ticket
  111. 32240). Related to ticket 31919.
  112. - Install the mingw OpenSSL package in Appveyor. This makes sure
  113. that the OpenSSL headers and libraries match in Tor's Appveyor
  114. builds. (This bug was triggered by an Appveyor image update.)
  115. Fixes bug 32449; bugfix on 0.3.5.6-rc.
  116. - In Travis, use Xcode 11.2 on macOS 10.14. Closes ticket 32241.
  117. Changes in version 0.4.2.3-alpha - 2019-10-24
  118. This release fixes several bugs from the previous alpha release, and
  119. from earlier versions of Tor.
  120. o Major bugfixes (relay):
  121. - Relays now respect their AccountingMax bandwidth again. When
  122. relays entered "soft" hibernation (which typically starts when
  123. we've hit 90% of our AccountingMax), we had stopped checking
  124. whether we should enter hard hibernation. Soft hibernation refuses
  125. new connections and new circuits, but the existing circuits can
  126. continue, meaning that relays could have exceeded their configured
  127. AccountingMax. Fixes bug 32108; bugfix on 0.4.0.1-alpha.
  128. o Major bugfixes (v3 onion services):
  129. - Onion services now always use the exact number of intro points
  130. configured with the HiddenServiceNumIntroductionPoints option (or
  131. fewer if nodes are excluded). Before, a service could sometimes
  132. pick more intro points than configured. Fixes bug 31548; bugfix
  133. on 0.3.2.1-alpha.
  134. o Minor feature (onion services, control port):
  135. - The ADD_ONION command's keyword "BEST" now defaults to ED25519-V3
  136. (v3) onion services. Previously it defaulted to RSA1024 (v2).
  137. Closes ticket 29669.
  138. o Minor features (testing):
  139. - When running tests that attempt to look up hostnames, replace the
  140. libc name lookup functions with ones that do not actually touch
  141. the network. This way, the tests complete more quickly in the
  142. presence of a slow or missing DNS resolver. Closes ticket 31841.
  143. o Minor features (testing, continuous integration):
  144. - Disable all but one Travis CI macOS build, to mitigate slow
  145. scheduling of Travis macOS jobs. Closes ticket 32177.
  146. - Run the chutney IPv6 networks as part of Travis CI. Closes
  147. ticket 30860.
  148. - Simplify the Travis CI build matrix, and optimise for build time.
  149. Closes ticket 31859.
  150. - Use Windows Server 2019 instead of Windows Server 2016 in our
  151. Appveyor builds. Closes ticket 32086.
  152. o Minor bugfixes (build system):
  153. - Interpret "--disable-module-dirauth=no" correctly. Fixes bug
  154. 32124; bugfix on 0.3.4.1-alpha.
  155. - Interpret "--with-tcmalloc=no" correctly. Fixes bug 32124; bugfix
  156. on 0.2.0.20-rc.
  157. - Stop failing when jemalloc is requested, but tcmalloc is not
  158. found. Fixes bug 32124; bugfix on 0.3.5.1-alpha.
  159. - When pkg-config is not installed, or a library that depends on
  160. pkg-config is not found, tell the user what to do to fix the
  161. problem. Fixes bug 31922; bugfix on 0.3.1.1-alpha.
  162. o Minor bugfixes (connections):
  163. - Avoid trying to read data from closed connections, which can cause
  164. needless loops in Libevent and infinite loops in Shadow. Fixes bug
  165. 30344; bugfix on 0.1.1.1-alpha.
  166. o Minor bugfixes (error handling):
  167. - Always lock the backtrace buffer before it is used. Fixes bug
  168. 31734; bugfix on 0.2.5.3-alpha.
  169. o Minor bugfixes (mainloop, periodic events, in-process API):
  170. - Reset the periodic events' "enabled" flag when Tor is shut down
  171. cleanly. Previously, this flag was left on, which caused periodic
  172. events not to be re-enabled when Tor was relaunched in-process
  173. with tor_api.h after a shutdown. Fixes bug 32058; bugfix
  174. on 0.3.3.1-alpha.
  175. o Minor bugfixes (process management):
  176. - Remove overly strict assertions that triggered when a pluggable
  177. transport failed to launch. Fixes bug 31091; bugfix
  178. on 0.4.0.1-alpha.
  179. - Remove an assertion in the Unix process backend. This assertion
  180. would trigger when we failed to find the executable for a child
  181. process. Fixes bug 31810; bugfix on 0.4.0.1-alpha.
  182. o Minor bugfixes (testing):
  183. - Avoid intermittent test failures due to a test that had relied on
  184. inconsistent timing sources. Fixes bug 31995; bugfix
  185. on 0.3.1.3-alpha.
  186. - When testing port rebinding, don't busy-wait for tor to log.
  187. Instead, actually sleep for a short time before polling again.
  188. Also improve the formatting of control commands and log messages.
  189. Fixes bug 31837; bugfix on 0.3.5.1-alpha.
  190. o Minor bugfixes (tls, logging):
  191. - Log bugs about the TLS read buffer's length only once, rather than
  192. filling the logs with similar warnings. Fixes bug 31939; bugfix
  193. on 0.3.0.4-rc.
  194. o Minor bugfixes (v3 onion services):
  195. - Fix an implicit conversion from ssize_t to size_t discovered by
  196. Coverity. Fixes bug 31682; bugfix on 0.4.2.1-alpha.
  197. - Fix a memory leak in an unlikely error code path when encoding HS
  198. DoS establish intro extension cell. Fixes bug 32063; bugfix
  199. on 0.4.2.1-alpha.
  200. - When cleaning up intro circuits for a v3 onion service, don't
  201. remove circuits that have an established or pending circuit, even
  202. if they ran out of retries. This way, we don't remove a circuit on
  203. its last retry. Fixes bug 31652; bugfix on 0.3.2.1-alpha.
  204. o Documentation:
  205. - Correct the description of "GuardLifetime". Fixes bug 31189;
  206. bugfix on 0.3.0.1-alpha.
  207. - Make clear in the man page, in both the bandwidth section and the
  208. AccountingMax section, that Tor counts in powers of two, not
  209. powers of ten: 1 GByte is 1024*1024*1024 bytes, not one billion
  210. bytes. Resolves ticket 32106.
  211. Changes in version 0.4.2.2-alpha - 2019-10-07
  212. This release fixes several bugs from the previous alpha release, and
  213. from earlier versions. It also includes a change in authorities, so
  214. that they begin to reject the currently unsupported release series.
  215. o Major features (directory authorities):
  216. - Directory authorities now reject relays running all currently
  217. deprecated release series. The currently supported release series
  218. are: 0.2.9, 0.3.5, 0.4.0, 0.4.1, and 0.4.2. Closes ticket 31549.
  219. o Major bugfixes (embedded Tor):
  220. - Avoid a possible crash when restarting Tor in embedded mode and
  221. enabling a different set of publish/subscribe messages. Fixes bug
  222. 31898; bugfix on 0.4.1.1-alpha.
  223. o Major bugfixes (torrc parsing):
  224. - Stop ignoring torrc options after an %include directive, when the
  225. included directory ends with a file that does not contain any
  226. config options (but does contain comments or whitespace). Fixes
  227. bug 31408; bugfix on 0.3.1.1-alpha.
  228. o Minor features (auto-formatting scripts):
  229. - When annotating C macros, never generate a line that our check-
  230. spaces script would reject. Closes ticket 31759.
  231. - When annotating C macros, try to remove cases of double-negation.
  232. Closes ticket 31779.
  233. o Minor features (continuous integration):
  234. - When building on Appveyor and Travis, pass the "-k" flag to make,
  235. so that we are informed of all compilation failures, not just the
  236. first one or two. Closes ticket 31372.
  237. o Minor features (geoip):
  238. - Update geoip and geoip6 to the October 1 2019 Maxmind GeoLite2
  239. Country database. Closes ticket 31931.
  240. o Minor features (maintenance scripts):
  241. - Add a Coccinelle script to detect bugs caused by incrementing or
  242. decrementing a variable inside a call to log_debug(). Since
  243. log_debug() is a macro whose arguments are conditionally
  244. evaluated, it is usually an error to do this. One such bug was
  245. 30628, in which SENDME cells were miscounted by a decrement
  246. operator inside a log_debug() call. Closes ticket 30743.
  247. o Minor features (onion services v3):
  248. - Assist users who try to setup v2 client authorization in v3 onion
  249. services by pointing them to the right documentation. Closes
  250. ticket 28966.
  251. o Minor bugfixes (Appveyor continuous integration):
  252. - Avoid spurious errors when Appveyor CI fails before the install
  253. step. Fixes bug 31884; bugfix on 0.3.4.2-alpha.
  254. o Minor bugfixes (best practices tracker):
  255. - When listing overbroad exceptions, do not also list problems, and
  256. do not list insufficiently broad exceptions. Fixes bug 31338;
  257. bugfix on 0.4.2.1-alpha.
  258. o Minor bugfixes (controller protocol):
  259. - Fix the MAPADDRESS controller command to accept one or more
  260. arguments. Previously, it required two or more arguments, and
  261. ignored the first. Fixes bug 31772; bugfix on 0.4.1.1-alpha.
  262. o Minor bugfixes (logging):
  263. - Add a missing check for HAVE_PTHREAD_H, because the backtrace code
  264. uses mutexes. Fixes bug 31614; bugfix on 0.2.5.2-alpha.
  265. - Disable backtrace signal handlers when shutting down tor. Fixes
  266. bug 31614; bugfix on 0.2.5.2-alpha.
  267. - Rate-limit our the logging message about the obsolete .exit
  268. notation. Previously, there was no limit on this warning, which
  269. could potentially be triggered many times by a hostile website.
  270. Fixes bug 31466; bugfix on 0.2.2.1-alpha.
  271. - When initialising log domain masks, only set known log domains.
  272. Fixes bug 31854; bugfix on 0.2.1.1-alpha.
  273. o Minor bugfixes (logging, protocol violations):
  274. - Do not log a nonfatal assertion failure when receiving a VERSIONS
  275. cell on a connection using the obsolete v1 link protocol. Log a
  276. protocol_warn instead. Fixes bug 31107; bugfix on 0.2.4.4-alpha.
  277. o Minor bugfixes (modules):
  278. - Explain what the optional Directory Authority module is, and what
  279. happens when it is disabled. Fixes bug 31825; bugfix
  280. on 0.3.4.1-alpha.
  281. o Minor bugfixes (multithreading):
  282. - Avoid some undefined behaviour when freeing mutexes. Fixes bug
  283. 31736; bugfix on 0.0.7.
  284. o Minor bugfixes (relay):
  285. - Avoid crashing when starting with a corrupt keys directory where
  286. the old ntor key and the new ntor key are identical. Fixes bug
  287. 30916; bugfix on 0.2.4.8-alpha.
  288. o Minor bugfixes (tests, SunOS):
  289. - Avoid a map_anon_nofork test failure due to a signed/unsigned
  290. integer comparison. Fixes bug 31897; bugfix on 0.4.1.1-alpha.
  291. o Code simplification and refactoring:
  292. - Refactor connection_control_process_inbuf() to reduce the size of
  293. a practracker exception. Closes ticket 31840.
  294. - Refactor the microdescs_parse_from_string() function into smaller
  295. pieces, for better comprehensibility. Closes ticket 31675.
  296. - Use SEVERITY_MASK_IDX() to find the LOG_* mask indexes in the unit
  297. tests and fuzzers, rather than using hard-coded values. Closes
  298. ticket 31334.
  299. - Interface for function `decrypt_desc_layer` cleaned up. Closes
  300. ticket 31589.
  301. o Documentation:
  302. - Document the signal-safe logging behaviour in the tor man page.
  303. Also add some comments to the relevant functions. Closes
  304. ticket 31839.
  305. - Explain why we can't destroy the backtrace buffer mutex. Explain
  306. why we don't need to destroy the log mutex. Closes ticket 31736.
  307. - The Tor source code repository now includes a (somewhat dated)
  308. description of Tor's modular architecture, in doc/HACKING/design.
  309. This is based on the old "tor-guts.git" repository, which we are
  310. adopting and superseding. Closes ticket 31849.
  311. Changes in version 0.4.1.6 - 2019-09-19
  312. This release backports several bugfixes to improve stability and
  313. correctness. Anyone experiencing build problems or crashes with 0.4.1.5,
  314. or experiencing reliability issues with single onion services, should
  315. upgrade.
  316. o Major bugfixes (crash, Linux, Android, backport from 0.4.2.1-alpha):
  317. - Tolerate systems (including some Android installations) where
  318. madvise and MADV_DONTDUMP are available at build-time, but not at
  319. run time. Previously, these systems would notice a failed syscall
  320. and abort. Fixes bug 31570; bugfix on 0.4.1.1-alpha.
  321. - Tolerate systems (including some Linux installations) where
  322. madvise and/or MADV_DONTFORK are available at build-time, but not
  323. at run time. Previously, these systems would notice a failed
  324. syscall and abort. Fixes bug 31696; bugfix on 0.4.1.1-alpha.
  325. o Minor features (stem tests, backport from 0.4.2.1-alpha):
  326. - Change "make test-stem" so it only runs the stem tests that use
  327. tor. This change makes test-stem faster and more reliable. Closes
  328. ticket 31554.
  329. o Minor bugfixes (build system, backport form 0.4.2.1-alpha):
  330. - Do not include the deprecated <sys/sysctl.h> on Linux or Windows
  331. systems. Fixes bug 31673; bugfix on 0.2.5.4-alpha.
  332. o Minor bugfixes (compilation, backport from 0.4.2.1-alpha):
  333. - Add more stub functions to fix compilation on Android with link-
  334. time optimization when --disable-module-dirauth is used.
  335. Previously, these compilation settings would make the compiler
  336. look for functions that didn't exist. Fixes bug 31552; bugfix
  337. on 0.4.1.1-alpha.
  338. - Suppress spurious float-conversion warnings from GCC when calling
  339. floating-point classifier functions on FreeBSD. Fixes part of bug
  340. 31687; bugfix on 0.3.1.5-alpha.
  341. o Minor bugfixes (controller protocol):
  342. - Fix the MAPADDRESS controller command to accept one or more
  343. arguments. Previously, it required two or more arguments, and ignored
  344. the first. Fixes bug 31772; bugfix on 0.4.1.1-alpha.
  345. o Minor bugfixes (guards, backport from 0.4.2.1-alpha):
  346. - When tor is missing descriptors for some primary entry guards,
  347. make the log message less alarming. It's normal for descriptors to
  348. expire, as long as tor fetches new ones soon after. Fixes bug
  349. 31657; bugfix on 0.3.3.1-alpha.
  350. o Minor bugfixes (logging, backport from 0.4.2.1-alpha):
  351. - Change log level of message "Hash of session info was not as
  352. expected" to LOG_PROTOCOL_WARN. Fixes bug 12399; bugfix
  353. on 0.1.1.10-alpha.
  354. o Minor bugfixes (rust, backport from 0.4.2.1-alpha):
  355. - Correctly exclude a redundant rust build job in Travis. Fixes bug
  356. 31463; bugfix on 0.3.5.4-alpha.
  357. o Minor bugfixes (v2 single onion services, backport from 0.4.2.1-alpha):
  358. - Always retry v2 single onion service intro and rend circuits with
  359. a 3-hop path. Previously, v2 single onion services used a 3-hop
  360. path when rendezvous circuits were retried after a remote or
  361. delayed failure, but a 1-hop path for immediate retries. Fixes bug
  362. 23818; bugfix on 0.2.9.3-alpha.
  363. o Minor bugfixes (v3 single onion services, backport from 0.4.2.1-alpha):
  364. - Always retry v3 single onion service intro and rend circuits with
  365. a 3-hop path. Previously, v3 single onion services used a 3-hop
  366. path when rend circuits were retried after a remote or delayed
  367. failure, but a 1-hop path for immediate retries. Fixes bug 23818;
  368. bugfix on 0.3.2.1-alpha.
  369. - Make v3 single onion services fall back to a 3-hop intro, when all
  370. intro points are unreachable via a 1-hop path. Previously, v3
  371. single onion services failed when all intro nodes were unreachable
  372. via a 1-hop path. Fixes bug 23507; bugfix on 0.3.2.1-alpha.
  373. o Documentation (backport from 0.4.2.1-alpha):
  374. - Use RFC 2397 data URL scheme to embed an image into tor-exit-
  375. notice.html so that operators no longer have to host it
  376. themselves. Closes ticket 31089.
  377. Changes in version 0.4.2.1-alpha - 2019-09-17
  378. This is the first alpha release in the 0.4.2.x series. It adds new
  379. defenses for denial-of-service attacks against onion services. It also
  380. includes numerous kinds of bugfixes and refactoring to help improve
  381. Tor's stability and ease of development.
  382. o Major features (onion service v3, denial of service):
  383. - Add onion service introduction denial of service defenses. Intro
  384. points can now rate-limit client introduction requests, using
  385. parameters that can be sent by the service within the
  386. ESTABLISH_INTRO cell. If the cell extension for this is not used,
  387. the intro point will honor the consensus parameters. Closes
  388. ticket 30924.
  389. o Major bugfixes (circuit build, guard):
  390. - When considering upgrading circuits from "waiting for guard" to
  391. "open", always ignore circuits that are marked for close.
  392. Previously we could end up in the situation where a subsystem is
  393. notified of a circuit opening, but the circuit is still marked for
  394. close, leading to undesirable behavior. Fixes bug 30871; bugfix
  395. on 0.3.0.1-alpha.
  396. o Major bugfixes (crash, Linux, Android):
  397. - Tolerate systems (including some Android installations) where
  398. madvise and MADV_DONTDUMP are available at build-time, but not at
  399. run time. Previously, these systems would notice a failed syscall
  400. and abort. Fixes bug 31570; bugfix on 0.4.1.1-alpha.
  401. - Tolerate systems (including some Linux installations) where
  402. madvise and/or MADV_DONTFORK are available at build-time, but not
  403. at run time. Previously, these systems would notice a failed
  404. syscall and abort. Fixes bug 31696; bugfix on 0.4.1.1-alpha.
  405. o Minor features (best practices tracker):
  406. - Our best-practices tracker now integrates with our include-checker
  407. tool to keep track of how many layering violations we have not yet
  408. fixed. We hope to reduce this number over time to improve Tor's
  409. modularity. Closes ticket 31176.
  410. - Add a TOR_PRACTRACKER_OPTIONS variable for passing arguments to
  411. practracker from the environment. We may want this for continuous
  412. integration. Closes ticket 31309.
  413. - Give a warning rather than an error when a practracker exception
  414. is violated by a small amount, add a --list-overbroad option to
  415. practracker that lists exceptions that are stricter than they need
  416. to be, and provide an environment variable for disabling
  417. practracker. Closes ticket 30752.
  418. - Our best-practices tracker now looks at headers as well as C
  419. files. Closes ticket 31175.
  420. o Minor features (build system):
  421. - Add --disable-manpage and --disable-html-manual options to
  422. configure script. This will enable shortening build times by not
  423. building documentation. Resolves issue 19381.
  424. o Minor features (compilation):
  425. - Log a more useful error message when we are compiling and one of
  426. the compile-time hardening options we have selected can be linked
  427. but not executed. Closes ticket 27530.
  428. o Minor features (configuration):
  429. - The configuration code has been extended to allow splitting
  430. configuration data across multiple objects. Previously, all
  431. configuration data needed to be kept in a single object, which
  432. tended to become bloated. Closes ticket 31240.
  433. o Minor features (continuous integration):
  434. - When running CI builds on Travis, put some random data in
  435. ~/.torrc, to make sure no tests are reading the Tor configuration
  436. file from its default location. Resolves issue 30102.
  437. o Minor features (debugging):
  438. - Log a nonfatal assertion failure if we encounter a configuration
  439. line whose command is "CLEAR" but which has a nonempty value. This
  440. should be impossible, according to the rules of our configuration
  441. line parsing. Closes ticket 31529.
  442. o Minor features (git hooks):
  443. - Our pre-commit git hook now checks for a special file before
  444. running practracker, so that practracker only runs on branches
  445. that are based on master. Since the pre-push hook calls the pre-
  446. commit hook, practracker will also only run before pushes of
  447. branches based on master. Closes ticket 30979.
  448. o Minor features (git scripts):
  449. - Add a "--" command-line argument, to separate git-push-all.sh
  450. script arguments from arguments that are passed through to git
  451. push. Closes ticket 31314.
  452. - Add a -r <remote-name> argument to git-push-all.sh, so the script
  453. can push test branches to a personal remote. Closes ticket 31314.
  454. - Add a -t <test-branch-prefix> argument to git-merge-forward.sh and
  455. git-push-all.sh, which makes these scripts create, merge forward,
  456. and push test branches. Closes ticket 31314.
  457. - Add a -u argument to git-merge-forward.sh, so that the script can
  458. re-use existing test branches after a merge failure and fix.
  459. Closes ticket 31314.
  460. - Add a TOR_GIT_PUSH env var, which sets the default git push
  461. command and arguments for git-push-all.sh. Closes ticket 31314.
  462. - Add a TOR_PUSH_DELAY variable to git-push-all.sh, which makes the
  463. script push master and maint branches with a delay between each
  464. branch. These delays trigger the CI jobs in a set order, which
  465. should show the most likely failures first. Also make pushes
  466. atomic by default, and make the script pass any command-line
  467. arguments to git push. Closes ticket 29879.
  468. - Call the shellcheck script from the pre-commit hook. Closes
  469. ticket 30967.
  470. - Skip pushing test branches that are the same as a remote
  471. maint/release/master branch in git-push-all.sh by default. Add a
  472. -s argument, so git-push-all.sh can push all test branches. Closes
  473. ticket 31314.
  474. o Minor features (IPv6, logging):
  475. - Log IPv6 addresses as well as IPv4 addresses when describing
  476. routerinfos, routerstatuses, and nodes. Closes ticket 21003.
  477. o Minor features (onion service v3):
  478. - Do not allow single hop clients to fetch or post an HS descriptor
  479. from an HSDir. Closes ticket 24964.
  480. o Minor features (onion service):
  481. - Disallow single-hop clients at the introduction point. We've
  482. removed Tor2web support a while back and single-hop rendezvous
  483. attempts are blocked at the relays. This change should remove load
  484. off the network from spammy clients. Close ticket 24963.
  485. o Minor features (stem tests):
  486. - Change "make test-stem" so it only runs the stem tests that use
  487. tor. This change makes test-stem faster and more reliable. Closes
  488. ticket 31554.
  489. o Minor features (testing):
  490. - Add a script to invoke "tor --dump-config" and "tor
  491. --verify-config" with various configuration options, and see
  492. whether tor's resulting configuration or error messages are what
  493. we expect. Use it for integration testing of our +Option and
  494. /Option flags. Closes ticket 31637.
  495. - Improve test coverage for our existing configuration parsing and
  496. management API. Closes ticket 30893.
  497. - Add integration tests to make sure that practracker gives the
  498. outputs we expect. Closes ticket 31477.
  499. - The practracker self-tests are now run as part of the Tor test
  500. suite. Closes ticket 31304.
  501. o Minor features (token bucket):
  502. - Implement a generic token bucket that uses a single counter, for
  503. use in anti-DoS onion service work. Closes ticket 30687.
  504. o Minor bugfixes (best practices tracker):
  505. - Fix a few issues in the best-practices script, including tests,
  506. tab tolerance, error reporting, and directory-exclusion logic.
  507. Fixes bug 29746; bugfix on 0.4.1.1-alpha.
  508. - When running check-best-practices, only consider files in the src
  509. subdirectory. Previously we had recursively considered all
  510. subdirectories, which made us get confused by the temporary
  511. directories made by "make distcheck". Fixes bug 31578; bugfix
  512. on 0.4.1.1-alpha.
  513. o Minor bugfixes (build system):
  514. - Do not include the deprecated <sys/sysctl.h> on Linux or Windows
  515. systems. Fixes bug 31673; bugfix on 0.2.5.4-alpha.
  516. o Minor bugfixes (chutney, makefiles, documentation):
  517. - "make test-network-all" now shows the warnings from each test-
  518. network.sh run on the console, so developers see new warnings
  519. early. We've also improved the documentation for this feature, and
  520. renamed a Makefile variable so the code is self-documenting. Fixes
  521. bug 30455; bugfix on 0.3.0.4-rc.
  522. o Minor bugfixes (compilation):
  523. - Add more stub functions to fix compilation on Android with link-
  524. time optimization when --disable-module-dirauth is used.
  525. Previously, these compilation settings would make the compiler
  526. look for functions that didn't exist. Fixes bug 31552; bugfix
  527. on 0.4.1.1-alpha.
  528. - Suppress spurious float-conversion warnings from GCC when calling
  529. floating-point classifier functions on FreeBSD. Fixes part of bug
  530. 31687; bugfix on 0.3.1.5-alpha.
  531. o Minor bugfixes (configuration):
  532. - Invalid floating-point values in the configuration file are now
  533. treated as errors in the configuration. Previously, they were
  534. ignored and treated as zero. Fixes bug 31475; bugfix on 0.0.1.
  535. o Minor bugfixes (coverity):
  536. - Add an assertion when parsing a BEGIN cell so that coverity can be
  537. sure that we are not about to dereference a NULL address. Fixes
  538. bug 31026; bugfix on 0.2.4.7-alpha. This is CID 1447296.
  539. - In our siphash implementation, when building for coverity, use
  540. memcpy in place of a switch statement, so that coverity can tell
  541. we are not accessing out-of-bounds memory. Fixes bug 31025; bugfix
  542. on 0.2.8.1-alpha. This is tracked as CID 1447293 and 1447295.
  543. - Fix several coverity warnings from our unit tests. Fixes bug
  544. 31030; bugfix on 0.2.4.1-alpha, 0.3.2.1-alpha, and 0.4.0.1-alpha.
  545. o Minor bugfixes (developer tooling):
  546. - Only log git script changes in the post-merge script when the
  547. merge was to the master branch. Fixes bug 31040; bugfix
  548. on 0.4.1.1-alpha.
  549. o Minor bugfixes (directory authorities):
  550. - Return a distinct status when formatting annotations fails. Fixes
  551. bug 30780; bugfix on 0.2.0.8-alpha.
  552. o Minor bugfixes (error handling):
  553. - On abort, try harder to flush the output buffers of log messages.
  554. On some platforms (macOS), log messages could be discarded when
  555. the process terminates. Fixes bug 31571; bugfix on 0.3.5.1-alpha.
  556. - Report the tor version whenever an assertion fails. Previously, we
  557. only reported the Tor version on some crashes, and some non-fatal
  558. assertions. Fixes bug 31571; bugfix on 0.3.5.1-alpha.
  559. - When tor aborts due to an error, close log file descriptors before
  560. aborting. Closing the logs makes some OSes flush log file buffers,
  561. rather than deleting buffered log lines. Fixes bug 31594; bugfix
  562. on 0.2.5.2-alpha.
  563. o Minor bugfixes (FreeBSD, PF-based proxy, IPv6):
  564. - When extracting an IPv6 address from a PF-based proxy, verify that
  565. we are actually configured to receive an IPv6 address, and log an
  566. internal error if not. Fixes part of bug 31687; bugfix
  567. on 0.2.3.4-alpha.
  568. o Minor bugfixes (git hooks):
  569. - Remove a duplicate call to practracker from the pre-push hook. The
  570. pre-push hook already calls the pre-commit hook, which calls
  571. practracker. Fixes bug 31462; bugfix on 0.4.1.1-alpha.
  572. o Minor bugfixes (git scripts):
  573. - Stop hard-coding the bash path in the git scripts. Some OSes don't
  574. have bash in /usr/bin, others have an ancient bash at this path.
  575. Fixes bug 30840; bugfix on 0.4.0.1-alpha.
  576. - Stop hard-coding the tor master branch name and worktree path in
  577. the git scripts. Fixes bug 30841; bugfix on 0.4.0.1-alpha.
  578. - Allow git-push-all.sh to be run from any directory. Previously,
  579. the script only worked if run from an upstream worktree directory.
  580. Closes ticket 31678.
  581. o Minor bugfixes (guards):
  582. - When tor is missing descriptors for some primary entry guards,
  583. make the log message less alarming. It's normal for descriptors to
  584. expire, as long as tor fetches new ones soon after. Fixes bug
  585. 31657; bugfix on 0.3.3.1-alpha.