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/* interface code for the LiME polymorphism engine
*/
#include "lime-interface.h"
/* lime_generate
*
* generate a new polymorph code from source data at 'source', with a length
* of 'source_len' bytes. the decrypter and encrypted data will be put at
* 'dest', without any length check (expect no more than 4096 bytes for the
* decrypter, so 4096 + source_len will do). 'delta' is the virtual address
* the decryptor will be placed, its the virutal address of dest[0].
* `rnd' is a random seed.
*
* return the number of bytes put at 'dest'
*/
inline unsigned int
lime_generate (unsigned char *source, unsigned int source_len,
unsigned char *dest, unsigned long int delta, unsigned int rnd)
{
unsigned int rlen;
/* FIXME: eax is not random parameter anymore, but does not hurt */
__asm__ __volatile__ ("
pushl %%ebp
movl 0x14(%%ebp), %%ebp
pushf
pusha
call lime
movl %%edx, 0x14(%%esp)
popa
popf
popl %%ebp\n\t"
: "=d" (rlen)
: "a" (rnd), "b" ((unsigned int) dest),
"c" ((unsigned int) source), "d" (source_len));
return (rlen);
}
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