ChangeLog 12 KB

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  1. Changes in version 0.0.2pre25 - 2004-03-04
  2. o New features:
  3. - Put the OR's IP in its router descriptor, not its fqdn. That way
  4. we'll stop being stalled by gethostbyname for nodes with flaky dns,
  5. e.g. poblano.
  6. o Bugfixes:
  7. - If the user typed in an address that didn't resolve, the server
  8. crashed.
  9. Changes in version 0.0.2pre24 - 2004-03-03
  10. o Bugfixes:
  11. - Fix an assertion failure in dns.c, where we were trying to dequeue
  12. a pending dns resolve even if it wasn't pending
  13. - Fix a spurious socks5 warning about still trying to write after the connection is finished.
  14. - Hold certain marked_for_close connections open until they're finished
  15. flushing, rather than losing bytes by closing them too early.
  16. - Correctly report the reason for ending a stream
  17. - Remove some duplicate calls to connection_mark_for_close
  18. - Put switch_id and start_daemon earlier in the boot sequence, so it
  19. will actually try to chdir() to options.DataDirectory
  20. - Make 'make test' exit(1) if a test fails; fix some unit tests
  21. - Make tor fail when you use a config option it doesn't know about,
  22. rather than warn and continue.
  23. - Make --version work
  24. - Bugfixes on the rpm spec file and tor.sh, so it's more up to date
  25. Changes in version 0.0.2pre23 - 2004-02-29
  26. o New features:
  27. - Print a statement when the first circ is finished, so the user
  28. knows it's working.
  29. - If a relay cell is unrecognized at the end of the circuit,
  30. send back a destroy. (So attacks to mutate cells are more
  31. clearly thwarted.)
  32. - New config option 'excludenodes' to avoid certain nodes for circuits.
  33. - When it daemonizes, it chdir's to the DataDirectory rather than "/",
  34. so you can collect coredumps there.
  35. o Bugfixes:
  36. - Fix a bug in tls flushing where sometimes data got wedged and
  37. didn't flush until more data got sent. Hopefully this bug was
  38. a big factor in the random delays we were seeing.
  39. - Make 'connected' cells include the resolved IP, so the client
  40. dns cache actually gets populated.
  41. - Disallow changing from ORPort=0 to ORPort>0 on hup.
  42. - When we time-out on a stream and detach from the circuit, send an
  43. end cell down it first.
  44. - Only warn about an unknown router (in exitnodes, entrynodes,
  45. excludenodes) after we've fetched a directory.
  46. Changes in version 0.0.2pre22 - 2004-02-26
  47. o New features:
  48. - Servers publish less revealing uname information in descriptors.
  49. - More memory tracking and assertions, to crash more usefully when
  50. errors happen.
  51. - If the default torrc isn't there, just use some default defaults.
  52. Plus provide an internal dirservers file if they don't have one.
  53. - When the user tries to use Tor as an http proxy, give them an http
  54. 501 failure explaining that we're a socks proxy.
  55. - Dump a new router.desc on hup, to help confused people who change
  56. their exit policies and then wonder why router.desc doesn't reflect
  57. it.
  58. - Clean up the generic tor.sh init script that we ship with.
  59. o Bugfixes:
  60. - If the exit stream is pending on the resolve, and a destroy arrives,
  61. then the stream wasn't getting removed from the pending list. I
  62. think this was the one causing recent server crashes.
  63. - Use a more robust poll on OSX 10.3, since their poll is flaky.
  64. - When it couldn't resolve any dirservers, it was useless from then on.
  65. Now it reloads the RouterFile (or default dirservers) if it has no
  66. dirservers.
  67. - Move the 'tor' binary back to /usr/local/bin/ -- it turns out
  68. many users don't even *have* a /usr/local/sbin/.
  69. Changes in version 0.0.2pre21 - 2004-02-18
  70. o New features:
  71. - There's a ChangeLog file that actually reflects the changelog.
  72. - There's a 'torify' wrapper script, with an accompanying
  73. tor-tsocks.conf, that simplifies the process of using tsocks for
  74. tor. It even has a man page.
  75. - The tor binary gets installed to sbin rather than bin now.
  76. - Retry streams where the connected cell hasn't arrived in 15 seconds
  77. - Clean up exit policy handling -- get the default out of the torrc, so we can update it without forcing each server operator to fix
  78. his/her torrc.
  79. - Allow imaps and pop3s in default exit policy
  80. o Bugfixes:
  81. - Prevent picking middleman nodes as the last node in the circuit
  82. Changes in version 0.0.2pre20 - 2004-01-30
  83. o New features:
  84. - We now have a deb package, and it's in debian unstable. Go to
  85. it, apt-getters. :)
  86. - I've split the TotalBandwidth option into BandwidthRate (how many
  87. bytes per second you want to allow, long-term) and
  88. BandwidthBurst (how many bytes you will allow at once before the cap
  89. kicks in). This better token bucket approach lets you, say, set
  90. BandwidthRate to 10KB/s and BandwidthBurst to 10MB, allowing good
  91. performance while not exceeding your monthly bandwidth quota.
  92. - Push out a tls record's worth of data once you've got it, rather
  93. than waiting until you've read everything waiting to be read. This
  94. may improve performance by pipelining better. We'll see.
  95. - Add an AP_CONN_STATE_CONNECTING state, to allow streams to detach
  96. from failed circuits (if they haven't been connected yet) and attach
  97. to new ones.
  98. - Expire old streams that haven't managed to connect. Some day we'll
  99. have them reattach to new circuits instead.
  100. o Bugfixes:
  101. - Fix several memory leaks that were causing servers to become bloated
  102. after a while.
  103. - Fix a few very rare assert triggers. A few more remain.
  104. - Setuid to User _before_ complaining about running as root.
  105. Changes in version 0.0.2pre19 - 2004-01-07
  106. o Bugfixes:
  107. - Fix deadlock condition in dns farm. We were telling a child to die by
  108. closing the parent's file descriptor to him. But newer children were
  109. inheriting the open file descriptor from the parent, and since they
  110. weren't closing it, the socket never closed, so the child never read
  111. eof, so he never knew to exit. Similarly, dns workers were holding
  112. open other sockets, leading to all sorts of chaos.
  113. - New cleaner daemon() code for forking and backgrounding.
  114. - If you log to a file, it now prints an entry at the top of the
  115. logfile so you know it's working.
  116. - The onionskin challenge length was 30 bytes longer than necessary.
  117. - Started to patch up the spec so it's not quite so out of date.
  118. Changes in version 0.0.2pre18 - 2004-01-02
  119. o Bugfixes:
  120. - Fix endian issues with the 'integrity' field in the relay header.
  121. - Fix a potential bug where connections in state
  122. AP_CONN_STATE_CIRCUIT_WAIT might unexpectedly ask to write.
  123. Changes in version 0.0.2pre17 - 2003-12-30
  124. o Bugfixes:
  125. - Made --debuglogfile (or any second log file, actually) work.
  126. - Resolved an edge case in get_unique_circ_id_by_conn where a smart
  127. adversary could force us into an infinite loop.
  128. o Features:
  129. - Each onionskin handshake now includes a hash of the computed key,
  130. to prove the server's identity and help perfect forward secrecy.
  131. - Changed cell size from 256 to 512 bytes (working toward compatibility
  132. with MorphMix).
  133. - Changed cell length to 2 bytes, and moved it to the relay header.
  134. - Implemented end-to-end integrity checking for the payloads of
  135. relay cells.
  136. - Separated streamid from 'recognized' (otherwise circuits will get
  137. messed up when we try to have streams exit from the middle). We
  138. use the integrity-checking to confirm that a cell is addressed to
  139. this hop.
  140. - Randomize the initial circid and streamid values, so an adversary who
  141. breaks into a node can't learn how many circuits or streams have
  142. been made so far.
  143. Changes in version 0.0.2pre16 - 2003-12-14
  144. o Bugfixes:
  145. - Fixed a bug that made HUP trigger an assert
  146. - Fixed a bug where a circuit that immediately failed wasn't being
  147. counted as a failed circuit in counting retries.
  148. o Features:
  149. - Now we close the circuit when we get a truncated cell: otherwise we're
  150. open to an anonymity attack where a bad node in the path truncates
  151. the circuit and then we open streams at him.
  152. - Add port ranges to exit policies
  153. - Add a conservative default exit policy
  154. - Warn if you're running tor as root
  155. - on HUP, retry OR connections and close/rebind listeners
  156. - options.EntryNodes: try these nodes first when picking the first node
  157. - options.ExitNodes: if your best choices happen to include any of
  158. your preferred exit nodes, you choose among just those preferred
  159. exit nodes.
  160. - options.ExcludedNodes: nodes that are never picked in path building
  161. Changes in version 0.0.2pre15 - 2003-12-03
  162. o Robustness and bugfixes:
  163. - Sometimes clients would cache incorrect DNS resolves, which would
  164. really screw things up.
  165. - An OP that goes offline would slowly leak all its sockets and stop
  166. working.
  167. - A wide variety of bugfixes in exit node selection, exit policy
  168. handling, and processing pending streams when a new circuit is
  169. established.
  170. - Pick nodes for a path only from those the directory says are up
  171. - Choose randomly from all running dirservers, not always the first one
  172. - Increase allowed http header size for directory fetch.
  173. - Stop writing to stderr (if we're daemonized it will be closed).
  174. - Enable -g always, so cores will be more useful to me.
  175. - Switch "-lcrypto -lssl" to "-lssl -lcrypto" for broken distributions.
  176. o Documentation:
  177. - Wrote a man page. It lists commonly used options.
  178. o Configuration:
  179. - Change default loglevel to warn.
  180. - Make PidFile default to null rather than littering in your CWD.
  181. - OnionRouter config option is now obsolete. Instead it just checks
  182. ORPort>0.
  183. - Moved to a single unified torrc file for both clients and servers.
  184. Changes in version 0.0.2pre14 - 2003-11-29
  185. o Robustness and bugfixes:
  186. - Force the admin to make the DataDirectory himself
  187. - to get ownership/permissions right
  188. - so clients no longer make a DataDirectory and then never use it
  189. - fix bug where a client who was offline for 45 minutes would never
  190. pull down a directory again
  191. - fix (or at least hide really well) the dns assert bug that was
  192. causing server crashes
  193. - warnings and improved robustness wrt clockskew for certs
  194. - use the native daemon(3) to daemonize, when available
  195. - exit if bind() fails
  196. - exit if neither socksport nor orport is defined
  197. - include our own tor_timegm (Win32 doesn't have its own)
  198. - bugfix for win32 with lots of connections
  199. - fix minor bias in PRNG
  200. - make dirserver more robust to corrupt cached directory
  201. o Documentation:
  202. - Wrote the design document (woo)
  203. o Circuit building and exit policies:
  204. - Circuits no longer try to use nodes that the directory has told them
  205. are down.
  206. - Exit policies now support bitmasks (18.0.0.0/255.0.0.0) and
  207. bitcounts (18.0.0.0/8).
  208. - Make AP connections standby for a circuit if no suitable circuit
  209. exists, rather than failing
  210. - Circuits choose exit node based on addr/port, exit policies, and
  211. which AP connections are standing by
  212. - Bump min pathlen from 2 to 3
  213. - Relay end cells have a payload to describe why the stream ended.
  214. - If the stream failed because of exit policy, try again with a new
  215. circuit.
  216. - Clients have a dns cache to remember resolved addresses.
  217. - Notice more quickly when we have no working circuits
  218. o Configuration:
  219. - APPort is now called SocksPort
  220. - SocksBindAddress, ORBindAddress, DirBindAddress let you configure
  221. where to bind
  222. - RecommendedVersions is now a config variable rather than
  223. hardcoded (for dirservers)
  224. - Reloads config on HUP
  225. - Usage info on -h or --help
  226. - If you set User and Group config vars, it'll setu/gid to them.