I installed the debug packages for libssl0.9.8 and added some debugging
code.
EVP_CipherInit_ex fails (returns 0)
ctx->cipher is null, which causes the segfault.
(gdb) p *this->cipher
$2 = {nid = 419, block_size = 16, key_len = 16, iv_len = 16, flags = 5122, init
= 0x7ffff5cf47b0 <aes_init_key>, do_cipher = 0x7ffff5cf4c90
<aes_128_cbc_cipher>, cleanup = 0, ctx_size = 244, set_asn1_parameters = 0,
get_asn1_parameters = 0, ctrl = 0, app_data = 0x0}
My cpu supports aesni. This might cause the problem.
I will have a look into the aesni patches in libssl0.9.8
My test with vanilla strongswan 4.3.2 was w/o openssl support, this may
be the reason why it worked there
--
strongswan's charon crashes shortly after authentication
https://bugs.launchpad.net/bugs/574664
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