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polish 0.2.0.1-alpha changelog
svn:r10436
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Roger Dingledine
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1 changed files with 58 additions and 55 deletions
113
ChangeLog
113
ChangeLog
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@ -1,7 +1,33 @@
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Changes in version 0.2.0.2-alpha - 2007-??-??
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Changes in version 0.2.0.1-alpha - 2007-06-01
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o Major features:
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o Major features, server usability:
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- New config options RelayBandwidthRate and RelayBandwidthBurst:
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a separate set of token buckets for relayed traffic. Right now
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relayed traffic is defined as answers to directory requests, and
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OR connections that don't have any local circuits on them.
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o Major features, client usability:
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- A client-side DNS proxy feature to replace the need for
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dns-proxy-tor: Just set "DNSPort 9999", and Tor will now listen
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for DNS requests on port 9999, use the Tor network to resolve them
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anonymously, and send the reply back like a regular DNS server.
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The code still only implements a subset of DNS.
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- Make PreferTunneledDirConns and TunnelDirConns work even when
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we have no cached directory info. This means Tor clients can now
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do all of their connections protected by TLS.
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o Major features, performance and efficiency:
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- Directory authorities accept and serve "extra info" documents for
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routers. These documents contain fields from router descriptors
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that aren't usually needed, and that use a lot of excess
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bandwidth. Once these fields are removed from router descriptors,
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the bandwidth savings should be about 60%. [Partially implements
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proposal 104.]
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- Servers upload extra-info documents to any authority that accepts
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them. Authorities (and caches that have been configured to download
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extra-info documents) download them as needed. [Partially implements
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proposal 104.]
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- Change the way that Tor buffers data that it is waiting to write.
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Instead of queueing data cells in an enormous ring buffer for each
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client->OR or OR->OR connection, we now queue cells on a separate
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@ -12,23 +38,13 @@ Changes in version 0.2.0.1-alpha - 2007-06-01
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efficiency, especially on platforms where malloc() is inefficient.
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- Stop reading on edge connections when their corresponding circuit
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buffers are full; start again as the circuits empty out.
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- New config options RelayBandwidthRate and RelayBandwidthBurst:
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a separate set of token buckets for relayed traffic. Right now
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relayed traffic is defined as answers to directory requests, and
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OR connections that don't have any local circuits on them.
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- Make PreferTunneledDirConns and TunnelDirConns work even when
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we have no cached directory info. This means Tor clients can now
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do all of their connections protected by TLS.
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o Major features, other:
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- Add an HSAuthorityRecordStats option that hidden service authorities
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can use to track statistics of overall hidden service usage without
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logging information that would be very useful to an attacker.
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- Start work implementing proposal 103: Add a standalone tool to
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generate key certificates.
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- A client-side DNS proxy feature to replace the need for dns-proxy-tor:
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Just set "DNSPort 9999", and Tor will now listen for DNS requests on
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port 9999, use the Tor network to resolve them anonymously, and send
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the reply back like a regular DNS server. The code is still only
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implements a subset of DNS.
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- Start work implementing multi-level keys for directory authorities:
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Add a standalone tool to generate key certificates. (Proposal 103.)
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o Security fixes:
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- Directory authorities now call routers stable if they have an
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@ -41,15 +57,14 @@ Changes in version 0.2.0.1-alpha - 2007-06-01
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of active connection_t objects. This will let us avoid underusing
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our allocated connection limit.
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- We no longer use socket pairs to link an edge connection to an
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anonymous directory connection or a dirport test connection.
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anonymous directory connection or a DirPort test connection.
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Instead, we track the link internally and transfer the data
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in-process. This saves two sockets per "linked" connection (at the
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client and at the server), and avoids the nasty Windows socketpair()
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workaround.
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- Keep unused 4k and 16k buffers on free lists, rather than wasting 8k
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for every single inactive connection_t.
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- Free items from the 4k/16k-buffer free lists when they haven't been
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used for a while.
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for every single inactive connection_t. Free items from the
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4k/16k-buffer free lists when they haven't been used for a while.
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o Minor features (build):
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- Make autoconf search for libevent, openssl, and zlib consistently.
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@ -72,22 +87,12 @@ Changes in version 0.2.0.1-alpha - 2007-06-01
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buffer type.
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o Minor features (directory system):
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- Directory authorities accept and serve "extra info" documents for
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routers. These documents contain fields from router descriptors
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that aren't usually needed, and that use a lot of excess
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bandwidth. Once these fields are removed from router descriptors,
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the bandwidth savings should be about 60%. [Partially implements
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proposal 104.]
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- Directory authorities allow multiple router descriptors and/or extra
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info documents to be uploaded in a single go. This will make
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implementing proposal 104 simpler.
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- New config option V2AuthoritativeDirectory that all directory
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authorities should set. This will let future authorities choose
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not to serve V2 directory information.
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- Servers upload extra-info documents to any authority that accepts
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them. Authorities (and caches that have been configured to download
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extra-info documents) download them as needed. [Partially implements
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proposal 104.]
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- Directory authorities allow multiple router descriptors and/or extra
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info documents to be uploaded in a single go. This will make
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implementing proposal 104 simpler.
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o Minor features (controller):
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- Add a new config option __DisablePredictedCircuits designed for
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@ -100,11 +105,6 @@ Changes in version 0.2.0.1-alpha - 2007-06-01
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whether the current version is recommended, and whether any versions
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are good, and how many authorities agree. (Patch from shibz.)
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o Minor features (tor-resolve):
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- Add an "-F" option to force a resolve for a .onion address. Thanks
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to the AutomapHostsOnResolve option, this is no longer a completely
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silly thing to do.
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o Minor features (hidden services):
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- Allow multiple HiddenServeicePort directives with the same virtual
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port; when they occur, the user is sent round-robin to one
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@ -119,16 +119,19 @@ Changes in version 0.2.0.1-alpha - 2007-06-01
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allows DNSPort to work sensibly with hidden service users. By
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default, .exit and .onion addresses are remapped; the list of
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patterns can be reconfigured with AutomapHostsSuffixes.
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- Add an "-F" option to tor-resolve to force a resolve for a .onion
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address. Thanks to the AutomapHostsOnResolve option, this is no
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longer a completely silly thing to do.
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- If Tor is invoked from something that isn't a shell (e.g. Vidalia),
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now we expand "-f ~/.tor/torrc" correctly. Suggested by Matt Edman.
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- Treat "2gb" when given in torrc for a bandwidth as meaning 2gb, minus 1
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byte: the actual maximum declared bandwidth.
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- Treat "2gb" when given in torrc for a bandwidth as meaning 2gb,
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minus 1 byte: the actual maximum declared bandwidth.
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o Removed features:
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- Removed support for the old binary "version 0" controller protocol.
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This has been deprecated since 0.1.1, and warnings have been issued
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since 0.1.2. When we encounter a v0 control message, we now send back
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an error and close the connection.
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since 0.1.2. When we encounter a v0 control message, we now send
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back an error and close the connection.
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- Remove the old "dns worker" server DNS code: it hasn't been default
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since 0.1.2.2-alpha, and all the servers seem to be using the new
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eventdns code.
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@ -151,23 +154,23 @@ Changes in version 0.2.0.1-alpha - 2007-06-01
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unusable. (Bulletproofs against bug 222.)
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o Minor bugfixes (other):
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- In the exitlist script, only consider the most recently published
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server descriptor for each server. Also, when the user requests
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a list of servers that _reject_ connections to a given address,
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explicitly exclude the IPs that also have servers that accept
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connections to that address. (Resolves bug 405.)
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- Stop allowing hibernating servers to be "stable" or "fast".
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- On Windows, we were preventing other processes from reading
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cached-routers while Tor was running. (Reported by janbar)
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- Make the NodeFamilies config option work. (Reported by
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lodger -- it has never actually worked, even though we added it
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in Oct 2004.)
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- Check return values from pthread_mutex functions.
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- Don't save non-general-purpose router descriptors to the disk cache,
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because we have no way of remembering what their purpose was when
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we restart.
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- Add even more asserts to hunt down bug 417.
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- On Windows, we were preventing other processes from reading
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cached-routers while Tor was running. (Reported by janbar)
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- Build without verbose warnings even on (not-yet-released) gcc 4.2.
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- Make the NodeFamilies config option work. (Reported by
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lodger -- it has never actually worked, even though we added it
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in Oct 2004.)
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- In the exitlist script, only consider the most recently published
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server descriptor for each server. Also, when the user requests
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a list of servers that _reject_ connections to a given address,
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explicitly exclude the IPs that also have servers that accept
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connections to that address. (Resolves bug 405.)
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o Minor bugfixes (controller):
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- Make 'getinfo fingerprint' return a 551 error if we're not a
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@ -180,14 +183,14 @@ Changes in version 0.2.0.1-alpha - 2007-06-01
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o Code simplifications and refactoring:
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- Stop passing around circuit_t and crypt_path_t pointers that are
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implicit in other procedure arguments.
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- Drop the old code to choke directory connections when the corresponding
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OR connections got full: thanks to the cell queue feature, OR conns
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don't get full any more.
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- Drop the old code to choke directory connections when the
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corresponding OR connections got full: thanks to the cell queue
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feature, OR conns don't get full any more.
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- Make dns_resolve() handle attaching connections to circuits
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properly, so the caller doesn't have to.
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- Rename wants_to_read and wants_to_write to read/write_blocked_on_bw.
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- Keep the connection array as a dynamic smartlist_t, rather than as
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a fixed-sized array. This is important, as the number of connections
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a fixed-sized array. This is important, as the number of connections
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is becoming increasingly decoupled from the number of sockets.
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