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* Fix a bunch of whitespace errorsNick Mathewson2011-10-11
* Cell types and states for new OR handshake•••Also, define all commands > 128 as variable-length when using v3 or later link protocol. Running into a var cell with an unrecognized type is no longer a bug. Nick Mathewson2011-10-10
* Rephrase the log messages emitted if the TestSocks check is positive•••Previously Tor would always claim to have been given a hostname by the client, while actually only verifying that the client is using SOCKS4A or SOCKS5 with hostnames. Both protocol versions allow IP addresses, too, in which case the log messages were wrong. Fixes #4094. Fabian Keil2011-10-03
* Remove warning about a loop parsing evbuffer socks•••This behavior is normal when we want more data than the evbuffer actually has for us. We'll ask for (say) 7 bytes, get only 5 (because that's all there is), try to parse the 5 bytes, and get told "no, I want 7". One option would be to bail out early whenever want_length is > buflen, but sometimes we use an over-large want_length. So instead, let's just remove the warning here: it's not a bug after all. Nick Mathewson2011-08-18
* Appease "make check-spaces"Nick Mathewson2011-08-18
* Use evbuffer_copyout() in inspect_evbuffer().Nick Mathewson2011-08-17
* Clear socks auth fields before freeNick Mathewson2011-08-05
* Merge branch 'optimistic-client'•••The conflicts are with the proposal 171 circuit isolation code, and they're all trivial: they're just a matter of both branches adding some unrelated code in the same places. Conflicts: src/or/circuituse.c src/or/connection.c Nick Mathewson2011-07-20
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| * Add a generic_buffer_t to use the best buffer type we have on hand•••Also add a quick function to copy all the data in a buffer. (This one could be done much better, but let's see if it matters.) Nick Mathewson2011-07-18
* | Fix spurious warning in bufferevent socks parsing•••The problem was that we weren't initializing want_length to 0 before calling parse_socks() the first time, so it looked like we were risking an infinite loop when in fact we were safe. Fixes 3615; bugfix on 0.2.3.2-alpha. Nick Mathewson2011-07-19
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* Merge remote-tracking branch 'public/bug1666'•••Conflicts: doc/spec/socks-extensions.txt src/or/buffers.c src/or/config.c src/or/connection_edge.c Nick Mathewson2011-07-13
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| * Add more error checks to socks parsing code•••Suggested by Linus to avoid uninitialized reads or infinite loops if it turns out our code is buggier than we had thought. Nick Mathewson2011-07-12
| * Refactor fetch_from_buf_socks() to be greedy•••Previously, fetch_from_buf_socks() might return 0 if there was still data on the buffer and a subsequent call to fetch_from_buf_socks() would return 1. This was making some of the socks5 unit tests harder to write, and could potentially have caused misbehavior with some overly verbose SOCKS implementations. Now, fetch_from_buf_socks() does as much processing as it can, and returns 0 only if it really needs more data. This brings it into line with the evbuffer socks implementation. Nick Mathewson2011-06-29
| * Don't drain extra data when parsing socks auth methods•••We added this back in 0649fa14 in 2006, to deal with the case where the client unconditionally sent us authentication data. Hopefully, that's not needed any longer, since we now can actually parse authentication data. Nick Mathewson2011-06-29
| * Record username/password data in socks_request_t•••This change also requires us to add and use a pair of allocator/deallocator functions for socks_request_t, instead of using tor_malloc_zero/tor_free directly. Nick Mathewson2011-06-29
| * If we negotiate authentication, require it.Nick Mathewson2011-06-29
| * Be more strict about when to accept socks auth message•••In the code as it stood, we would accept any number of socks5 username/password authentication messages, regardless of whether we had actually negotiated username/password authentication. Instead, we should only accept one, and only if we have really negotiated username/password authentication. This patch also makes some fields of socks_request_t into uint8_t, for safety. Nick Mathewson2011-06-29
| * Fix 'make check-spaces'Nick Mathewson2011-06-29
| * Correct byte-counting in socks auth parsing codeNick Mathewson2011-06-29
| * bug1666 - Pass-through support for SOCKS5 authentication(4)•••Implement nickm's suggestion that we tolerate SOCKS5 clients that send authentication credentials and SOCKS commands all in one go. Robert Hogan2010-12-14
| * bug1666 - Pass-through support for SOCKS5 authentication (2)•••Address Nick's comments: - Refactor against changes in buffers.c - Ensure we have negotiated a method before accepting authentication credentials Robert Hogan2010-12-14
| * bug1666 - Pass-through support for SOCKS5 authentication•••If a SOCKS5 client insists on authentication, allow it to negotiate a connection with Tor's SOCKS server successfully. Any credentials the client provides are ignored. This allows Tor to work with SOCKS5 clients that can only support 'authenticated' connections. Also add a bunch of basic unit tests for SOCKS4/4a/5 support in buffers.c. Robert Hogan2010-12-14
* | Remove unused var in write_to_evbuffer_zlibNick Mathewson2011-07-07
* | Make the get_options() return const•••This lets us make a lot of other stuff const, allows the compiler to generate (slightly) better code, and will make me get slightly fewer patches from folks who stick mutable stuff into or_options_t. const: because not every input is an output! Nick Mathewson2011-06-14
* | Merge remote-tracking branch 'origin/maint-0.2.2'•••Conflicts: src/common/compat.c src/or/main.c Nick Mathewson2011-05-30
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| * | Use a 64-bit type to hold sockets on win64.•••On win64, sockets are of type UINT_PTR; on win32 they're u_int; elsewhere they're int. The correct windows way to check a socket for being set is to compare it with INVALID_SOCKET; elsewhere you see if it is negative. On Libevent 2, all callbacks take sockets as evutil_socket_t; we've been passing them int. This patch should fix compilation and correctness when built for 64-bit windows. Fixes bug 3270. Nick Mathewson2011-05-23
* | | Merge remote-tracking branch 'origin/maint-0.2.2'•••Conflicts: src/common/address.c src/common/compat_libevent.c src/common/memarea.c src/common/util.h src/or/buffers.c src/or/circuitbuild.c src/or/circuituse.c src/or/connection.c src/or/directory.c src/or/networkstatus.c src/or/or.h src/or/routerlist.c Nick Mathewson2011-04-07
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| * | Triage the XXX022 and XXX021 comments remaining in the code•••Remove some, postpone others, leave some alone. Now the only remaining XXX022s are ones that seem important to fix or investigate. Nick Mathewson2011-03-25
| * | Fix another instance of "128" in buffers.c. More bug2330.Nick Mathewson2011-01-15
* | | Merge branch 'bug2320'Nick Mathewson2011-01-12
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| * | | Use autoconf's FLEXIBLE_ARRAY_MEMBER for unspecified-length arrays•••C99 allows a syntax for structures whose last element is of unspecified length: struct s { int elt1; ... char last_element[]; }; Recent (last-5-years) autoconf versions provide an AC_C_FLEXIBLE_ARRAY_MEMBER test that defines FLEXIBLE_ARRAY_MEMBER to either no tokens (if you have c99 flexible array support) or to 1 (if you don't). At that point you just use offsetof [STRUCT_OFFSET() for us] to see where last_element begins, and allocate your structures like: struct s { int elt1; ... char last_element[FLEXIBLE_ARRAY_MEMBER]; }; tor_malloc(STRUCT_OFFSET(struct s, last_element) + n_elements*sizeof(char)); The advantages are: 1) It's easier to see which structures and elements are of unspecified length. 2) The compiler and related checking tools can also see which structures and elements are of unspecified length, in case they wants to try weird bounds-checking tricks or something. 3) The compiler can warn us if we do something dumb, like try to stack-allocate a flexible-length structure. Nick Mathewson2011-01-06
* | | | Merge remote branch 'origin/maint-0.2.2'•••Conflicts: src/or/buffers.c Nick Mathewson2011-01-10
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| * | Pull up more data when parsing socks messages•••Previously, we only looked at up to 128 bytes. This is a bad idea since socks messages can be at least 256+x bytes long. Now we look at up to 512 bytes; this should be enough for 0.2.2.x to handle all valid SOCKS messages. For 0.2.3.x, we can think about handling trickier cases. Fixes 2330. Bugfix on 0.2.0.16-alpha. Nick Mathewson2011-01-10
* | | Merge remote branch 'rransom/bug2327-v2'Nick Mathewson2011-01-03
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| * | | Don't throw away incomplete SOCKS proxy responses.•••Introduced in 9796b9bfa6a757780d6185547e4baf739c53cdac. Robert Ransom2010-12-29
| * | | Use evbuffer_pullup properly in fetch_from_evbuffer_socks_client.•••evbuffer_pullup does nothing and returns NULL if the caller asks it to linearize more data than the buffer contains. Introduced in 9796b9bfa6a757780d6185547e4baf739c53cdac. Reported by piebeer; fixed with help from doors. Robert Ransom2010-12-29
* | | | Merge remote branch 'origin/maint-0.2.2'Nick Mathewson2011-01-03
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| * | Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2•••Conflicts: src/common/test.h src/or/test.c Nick Mathewson2011-01-03
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| | * | Bump copyright statements to 2011Nick Mathewson2011-01-03
* | | | Merge branch 'maint-0.2.2'Roger Dingledine2010-12-19
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| * | Merge remote branch fix_security_bug_021 into fix_security_bug_022•••Conflicts: src/common/memarea.c src/or/or.h src/or/rendclient.c Nick Mathewson2010-12-15
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| | * Make payloads into uint8_t.•••This will avoid some signed/unsigned assignment-related bugs. Nick Mathewson2010-12-15
| | * Disable logging to control port connections in buf_shrink_freelists.•••If buf_shrink_freelists calls log_warn for some reason, we don't want the log call itself to throw buf_shrink_freelists further off the rails. Robert Ransom2010-11-12
| | * Move the original log_info call out of the core of buf_shrink_freelists.•••Sending a log message to a control port can cause Tor to allocate a buffer, thereby changing the length of the freelist behind buf_shrink_freelists's back, thereby causing an assertion to fail. Fixes bug #1125. Robert Ransom2010-11-12
* | | Merge remote branch 'origin/maint-0.2.2'Nick Mathewson2010-11-15
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| * | Move controller event for socks warning into log_unsafe_socks_warningNick Mathewson2010-11-15
* | | Merge remote branch 'origin/maint-0.2.2'•••Conflicts: src/or/buffers.c Nick Mathewson2010-11-15
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| * | Rate-limit unsafe socks warning•••Pick 5 seconds as the limit. 5 seconds is a compromise here between making sure the user notices that the bad behaviour is (still) happening and not spamming their log too much needlessly (the log message is pretty long). We also keep warning every time if safesocks is specified, because then the user presumably wants to hear about every blocked instance. (This is based on the original patch by Sebastian, then backported to 0.2.2 and with warnings split into their own function.) Sebastian Hahn2010-11-15
* | | Merge remote branch 'origin/maint-0.2.2'Nick Mathewson2010-11-12
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| * | Avoid perma-blocking the controller on bug in shrink_freelist•••In all likelihood, this bug would make Tor assert, but if it doesn't, let's not have two bugs. Nick Mathewson2010-11-12