Some *_free functions threw asserts when passed NULL. Now all of them
accept NULL as input and perform no action when called that way.

This gains us consistence for our free functions, and allows some
code simplifications where an explicit null check is no longer necessary.

The subversion $Id$ fields made every commit force a rebuild of
whatever file got committed.  They were not actually useful for
telling the version of Tor files in the wild.

svn:r17867

 Make some assert()s into tor_assert()s.  Make some tor_assert()s called from logging into assert()s, and document why.


svn:r13977

svn:r13649

 Re-tune mempool parametes based on testing on peacetime: use smaller chuncks, free them a little more aggressively, and try very hard to concentrate allocations on fuller chunks.  Also, lots of new documentation.


svn:r13484

svn:r13440

 Be more thorough about memory poisoning and clearing.  Add an in-place version of aes_crypt in order to remove a memcpy from relay_crypt_one_payload.


svn:r13414

svn:r13412

svn:r12786

 Add a bunch of function documentation; clean up a little code; fix some XXXXs; tag the nonsensical EXTRAINFO_PURPOSE_GENERAL as nonsesnse; note another bit of "do not cache special routers" code to nuke.


svn:r11761

 Make some functions static; remove some dead code.


svn:r11750

 Clean up some macros in aes.c


svn:r11537

 Re-optimize counter-mode: save about 15% on my core2 by (1) not regenerating the entire counter buffer every time we encrypt a block of keystream (2) using the platform-optimized htonl to convert to big-endian (It's a single instruction on 486 and later ) and (3) not even keeping a separate "counter" and "buffer" when the platform is big-endian. The third still needs testing.


svn:r11536

is what you meant to do.


svn:r11529

 Switch our AES implementation from "128 bit counter with to 64 bits set to 0" to a proper implementation of counter mode.  Also, add an aes_set_iv function to initialize the counter to a nonzero value.


svn:r11518

 Back out insufficiently evidenced FULL_UNROLL in aes.c


svn:r9693

 Add some missing (redundant but helpful in most cases) static declarations, and remove a function nobody was calling.


svn:r9672

svn:r9664

 try to make aes encryption of cells about 30-40% faster where applicable.  offer not available for all architectures or all versions of openssl.


svn:r9663

 Add a quick-and-dirty AES benchmark function to the bottom of aes.c so I can go collecting data.


svn:r9660

 Note some optimizations that are probably not worth it for 0.1.2.x based on preliminary profiling.


svn:r9659

 Update copyright dates.


svn:r9570

svn:r6143

svn:r5949

svn:r5582

Ive spent about 10 hours benchmarking permutations on our counter-mode implementation.  This is the one that flies. (Avoid OpenSSL; optimizze rijndael calling convention to avoid needing to marshall and unmarshall counter.) This should speed up cell encryption by about 27%.


svn:r5486

Stop leaking storage for EVP keys. (This would be a critical bug if it had ever appeared in a released version.)


svn:r5179

Never call free() on tor_malloc()d memory. This is unlikely to be our current leak, but it may help dmalloc work.


svn:r5168

svn:r5160

svn:r5150

svn:r5146

Point readers of the code to opensslv.h, since everybody who sees 0x0090700f looks at me like some kind of loon


svn:r5140

svn:r5139

svn:r5129

svn:r4404

svn:r4382

svn:r4378