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# jitter.h File Reference

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## Data Structures
struct | binary_stream
| A stream of X86 binary code. More...
struct | JIT_BPF_Filter
| Structure describing a x86 filtering program created by the jitter. More...
## Defines
#define | EAX 0
#define | ECX 1
#define | EDX 2
#define | EBX 3
#define | ESP 4
#define | EBP 5
#define | ESI 6
#define | EDI 7
#define | AX 0
#define | CX 1
#define | DX 2
#define | BX 3
#define | SP 4
#define | BP 5
#define | SI 6
#define | DI 7
#define | AL 0
#define | CL 1
#define | DL 2
#define | BL 3
#define | MOVid(r32, i32) emitm(&stream, 11 << 4 | 1 << 3 | r32 & 0x7, 1); emitm(&stream, i32, 4);
| mov r32,i32
#define | MOVrd(dr32, sr32) emitm(&stream, 8 << 4 | 3 | 1 << 3, 1); emitm(&stream, 3 << 6 | (dr32 & 0x7) << 3 | sr32 & 0x7, 1);
| mov dr32,sr32
#define | MOVodd(dr32, sr32, off)
| mov dr32,sr32[off]
#define | MOVobd(dr32, sr32, or32)
| mov dr32,sr32[or32]
#define | MOVobw(dr32, sr32, or32)
| mov dr16,sr32[or32]
#define | MOVobb(dr8, sr32, or32)
| mov dr8,sr32[or32]
#define | MOVomd(dr32, or32, sr32)
| mov [dr32][or32],sr32
#define | BSWAP(dr32)
| bswap dr32
#define | SWAP_AX()
| xchg al,ah
#define | PUSH(r32) emitm(&stream, 5 << 4 | 0 << 3 | r32 & 0x7, 1);
| push r32
#define | POP(r32) emitm(&stream, 5 << 4 | 1 << 3 | r32 & 0x7, 1);
| pop r32
#define | RET() emitm(&stream, 12 << 4 | 0 << 3 | 3, 1);
| ret
#define | ADDrd(dr32, sr32)
| add dr32,sr32
#define | ADD_EAXi(i32)
| add eax,i32
#define | ADDid(r32, i32)
| add r32,i32
#define | ADDib(r32, i8)
| add r32,i8
#define | SUBrd(dr32, sr32)
| sub dr32,sr32
#define | SUB_EAXi(i32)
| sub eax,i32
#define | MULrd(r32)
| mul r32
#define | DIVrd(r32)
| div r32
#define | ANDib(r8, i8)
| and r8,i8
#define | ANDid(r32, i32)
| and r32,i32
#define | ANDrd(dr32, sr32)
| and dr32,sr32
#define | ORrd(dr32, sr32)
| or dr32,sr32
#define | ORid(r32, i32)
| or r32,i32
#define | SHLib(r32, i8)
| shl r32,i8
#define | SHL_CLrb(dr32)
| shl dr32,cl
#define | SHRib(r32, i8)
| shr r32,i8
#define | SHR_CLrb(dr32)
| shr dr32,cl
#define | NEGd(r32)
| neg r32
#define | CMPodd(dr32, sr32, off)
| cmp dr32,sr32[off]
#define | CMPrd(dr32, sr32)
| cmp dr32,sr32
#define | CMPid(dr32, i32)
| cmp dr32,i32
#define | JNEb(off8)
| jne off32
#define | JE(off32)
| je off32
#define | JLE(off32)
| jle off32
#define | JLEb(off8)
| jle off8
#define | JA(off32)
| ja off32
#define | JAE(off32)
| jae off32
#define | JG(off32)
| jg off32
#define | JGE(off32)
| jge off32
#define | JMP(off32)
| jmp off32
## Typedefs
typedef binary_stream | binary_stream
| A stream of X86 binary code.
typedef UINT(* | BPF_filter_function )(binary_stream *, ULONG, UINT)
| Prototype of a filtering function created by the jitter.
typedef void(* | emit_func )(binary_stream *stream, ULONG value, UINT n)
| Prototype of the emit functions.
typedef JIT_BPF_Filter | JIT_BPF_Filter
| Structure describing a x86 filtering program created by the jitter.
## Functions
JIT_BPF_Filter * | BPF_jitter (struct bpf_insn *fp, INT nins)
| BPF jitter, builds an x86 function from a BPF program.
BPF_filter_function | BPFtoX86 (struct bpf_insn *ins, UINT nins, INT *mem)
| Translates a set of BPF instructions in a set of x86 ones.
void | BPF_Destroy_JIT_Filter (JIT_BPF_Filter *Filter)
| Deletes a filtering function that was previously created by BPF_jitter().

documentation. Copyright (c) 2002-2005 Politecnico di Torino. Copyright (c) 2005 CACE technologies. All rights reserved.