error and m is freed. Previously, it was not the case in ipcomp and esp case
(aka in some case, it returns 0 with m freed, or an error and m was not freed).
In ipcomp_output, fix some leak of mcopy too.
Use the same error path in {ah,esp,ipcomp}_output.
Problem was reported by Wolfgang Stukenbrock in pr/36768.
- use hash for SPI-based SAD entry lookup (should be faster, i hope)
- cleanup keydb.c and key.c. key.c is responsible for refcounting secasvar,
keydb.c is responsible for alloc/free.
if there's no rnd(4), random(9) will be used with one-time warning printf(9).
XXX not sure how good rnd_extract_data(RND_EXTRACT_ANY) is, under entropy-
starvation situation
cbc-over-mbuf functions in sys/crypto.
the change should make it much easier to switch crypto function to
machine-dependent ones (like assembly code under sys/arch/i386/crypto?).
also it should be much easier to import AES algorithms.
XXX: it looks that past blowfish-cbc code was buggy. i ran some test pattern,
and new blowfish-cbc code looks more correct. there's no interoperability
between the old code (before the commit) and the new code (after the commit).
XXX: need serious interop tests before move it into 1.5 branch
sync with kame.
loopback, blowfish-cbc transport mode, 128bit key
before: 86588496 bytes received in 00:42 (1.94 MB/s)
after: 86588496 bytes received in 00:31 (2.58 MB/s)
