| Commit message (Collapse) | Author | Age |
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SSL_read(), SSL_write() and SSL_do_handshake() can always progress the
SSL protocol instead of their normal operation, this means that we
must be checking for needless renegotiations after they return.
Introduce tor_tls_got_excess_renegotiations() which makes the
tls->server_handshake_count > 2
check for us, and use it in tor_tls_read() and tor_tls_write().
Cases that should not be handled:
* SSL_do_handshake() is only called by tor_tls_renegotiate() which is a
client-only function.
* The SSL_read() in tor_tls_shutdown() does not need to be handled,
since SSL_shutdown() will be called if SSL_read() returns an error.
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Since we check for naughty renegotiations using
tor_tls_t.server_handshake_count we don't need that semi-broken
function (at least till there is a way to disable rfc5746
renegotiations too).
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Switch 'server_handshake_count' from a uint8_t to 2 unsigned int bits.
Since we won't ever be doing more than 3 handshakes, we don't need the
extra space.
Toggle tor_tls_t.got_renegotiate based on the server_handshake_count.
Also assert that when we've done two handshakes as a server (the initial
SSL handshake, and the renegotiation handshake) we've just
renegotiated.
Finally, in tor_tls_read() return an error if we see more than 2
handshakes.
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The renegotiation callback was called only when the first Application
Data arrived, instead of when the renegotiation took place.
This happened because SSL_read() returns -1 and sets the error to
SSL_ERROR_WANT_READ when a renegotiation happens instead of reading
data [0].
I also added a commented out aggressive assert that I won't enable yet
because I don't feel I understand SSL_ERROR_WANT_READ enough.
[0]: Look at documentation of SSL_read(), SSL_get_error() and
SSL_CTX_set_mode() (SSL_MODE_AUTO_RETRY section).
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Introduce tor_tls_state_changed_callback(), which handles every SSL
state change.
The new function tor_tls_got_server_hello() is called every time we
send a ServerHello during a v2 handshake, and plays the role of the
previous tor_tls_server_info_callback() function.
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Let's *not* expose more cross-platform-compatibility structures, or
expect code to use them right.
Also, don't fclose() stdout_handle and stdin_handle until we do
tor_process_handle_destroy, or we risk a double-fclose.
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- Add a LOG_WARN message when registering the transports of a server
managed proxy, so that the bridge operator can see in what ports the
transports spawned and notify his/her clients.
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- Add a tor_process_get_pid() function that returns the PID of a
process_handle_t.
- Conform to make check-spaces.
- Add some more documentation.
- Improve some log messages.
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We used to try to terminate the managed proxy process even if it
failed while launching. We introduce a new managed proxy state, to
represent a *broken* and *not launched* proxy.
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Also, create tor_process_destroy() which destroys a process_handle_t.
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We're using it incorrectly in many cases, and it doesn't help as far as
we know.
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Conflicts:
changes/aes_hackery
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This shaves about 7% off our per-cell AES crypto time for me; the
effect for accelerated AES crypto should be even more, since the AES
calculation itself will make an even smaller portion of the
counter-mode performance.
(We don't want to do this for pre-1.0.0 OpenSSL, since our AES_CTR
implementation was actually faster than OpenSSL's there, by about
10%.)
Fixes issue #4526.
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Fixes bug 4525, fix on 0.2.3.8-alpha.
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Properly create git revision and source file sha1sums include files when
building tor not in its source tree but in a dedicated build tree.
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This is katmagic's idea. See issue 4400.
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Don't warn when we have no implementation of this function (since it's
on-by-default); reformat the changes entry; fix an overlong line.
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Conflicts:
src/or/config.c
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If set to 1, Tor will attempt to prevent basic debugging
attachment attempts by other processes. (Default: 1)
Supports Mac OS X and Gnu/Linux.
Sebastian provided useful feedback and refactoring suggestions.
Signed-off-by: Jacob Appelbaum <jacob@appelbaum.net>
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When running with IOCP, we are in theory able to use userspace-
allocated buffers to avoid filling up the stingy amount of kernel
space allocated for sockets buffers.
The bufferevent_async implementation in Libevent provides this
ability, in theory. (There are likely to be remaining bugs). This
patch adds a new option that, when using IOCP bufferevents, sets
each socket's send and receive buffers to 0, so that we should use
this ability.
When all the bugs are worked out here, if we are right about bug 98,
this might solve or mitigate bug 98.
This option is experimental and will likely require lots of testing
and debugging.
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The timercmp macro uses triggers a "space between function name and
opening parentheses" warning for the check spaces script. Work around
this by simply disabling the check for all "functions" named 'op()'.
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This slipped through into 0.2.3.8-alpha unfortunately.
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Had to resolve conflicts wrt the " (using bufferevents)" addition to the
startup string.
Conflicts:
src/or/main.c
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Instead of just saying "boogity boogity!" let's actually warn people
that they need to configure stuff right to be safe, and point them
at instructions for how to do that.
Resolves bug 2474.
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The old behavior was susceptible to the compiler optimizing out our
assertion check, *and* could still overflow size_t on 32-bit systems
even when it did work.
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Backport of 68475fc5c5a806ebbb5657de1667dab2c3e09b7c which accidentally
only made it into master. Fixes bug 4547. Bug isn't in any released
version.
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