Dmitry Belyavsky wrote:
Greetings!
On Thu, Sep 22, 2011 at 3:00 AM, Roumen Petrov
<open...@roumenpetrov.info> wrote:
[SNIP]
What is result if register_XXXX_gost methotds are moved from bind to init ?
Double-free occurs too.
The
openssl speed -engine gost -evp gost89
is successful,
but the
openssl engine gost
fails with the same diagnostics. BTW it seems to be a bug in engine
command, because when I use the DSO object to protect double-load, the
speed command reports "can't use that engine" (./apps/apps.c line
1492) and the engine command does not.
Hmm, I can not reproduce crash . Both command pass in my 64 bit env. :
OpenSSL 1.0.0e 6 Sep 2011
built on: Thu Sep 8 01:45:55 EEST 2011
options:bn(64,64) rc4(8x,int) des(idx,cisc,16,int) aes(partial)
idea(int) blowfish(idx)
compiler: gcc -fPIC -DOPENSSL_PIC -DZLIB_SHARED -DZLIB -DOPENSSL_THREADS
-D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -Wa,--noexecstack
-fno-strict-aliasing -m64 -DL_ENDIAN -DTERMIO -O3 -Wall -DMD32_REG_T=int
-DOPENSSL_EXPERIMENTAL_JPAKE -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT
-DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DWHIRLPOOL_ASM
Why gost engine in bind method check for "if (id && strcmp(id,
engine_gost_id)) return 0;" ? Plase could you compare with capi engine
function bind_helper() .
Off topic: destroy function may call ERR_unload_GOST_strings .
I could not found more reasons.
My tests show that ENGINE_get_ex_new_index will crash engine if is
called from bind or if free callback is passed. This function is not
called by gost engine so out of scope.
Roumen
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