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use binaryninja::architecture::Register;
use binaryninja::binary_view::BinaryViewExt;
use binaryninja::headless::Session;
use binaryninja::low_level_il::expression::{
ExpressionHandler, LowLevelExpressionIndex, LowLevelILExpressionKind,
};
use binaryninja::low_level_il::instruction::{
InstructionHandler, LowLevelILInstructionKind, LowLevelInstructionIndex,
};
use binaryninja::low_level_il::{LowLevelILRegister, VisitorAction};
use rstest::*;
use std::path::PathBuf;
#[fixture]
#[once]
fn session() -> Session {
Session::new().expect("Failed to initialize session")
}
#[rstest]
fn test_llil_info(_session: &Session) {
let out_dir = env!("OUT_DIR").parse::<PathBuf>().unwrap();
let view = binaryninja::load(out_dir.join("atox.obj")).expect("Failed to create view");
let entry_function = view.entry_point_function().unwrap();
let llil_function = entry_function.low_level_il().unwrap();
let llil_basic_blocks = llil_function.basic_blocks();
let mut llil_basic_block_iter = llil_basic_blocks.iter();
let first_basic_block = llil_basic_block_iter.next().unwrap();
let mut llil_instr_iter = first_basic_block.iter();
// 0 @ 00025f10 (LLIL_SET_REG.d edi = (LLIL_REG.d edi))
let instr_0 = llil_instr_iter.next().unwrap();
assert_eq!(instr_0.index, LowLevelInstructionIndex(0));
assert_eq!(instr_0.address(), 0x00025f10);
println!("{:?}", instr_0);
println!("{:?}", instr_0.kind());
match instr_0.kind() {
LowLevelILInstructionKind::SetReg(op) => {
assert_eq!(op.size(), 4);
match op.dest_reg() {
LowLevelILRegister::ArchReg(reg) => assert_eq!(reg.name(), "edi"),
_ => panic!("Expected Register::ArchReg"),
}
assert_eq!(op.source_expr().index, LowLevelExpressionIndex(0));
}
_ => panic!("Expected SetReg"),
}
// 1 @ 00025f12 (LLIL_PUSH.d push((LLIL_REG.d ebp)))
let instr_1 = llil_instr_iter.next().unwrap();
assert_eq!(instr_1.index, LowLevelInstructionIndex(1));
assert_eq!(instr_1.address(), 0x00025f12);
println!("{:?}", instr_1.kind());
match instr_1.kind() {
LowLevelILInstructionKind::Push(op) => {
assert_eq!(op.size(), 4);
assert_eq!(op.operand().index, LowLevelExpressionIndex(2));
println!("{:?}", op.operand().kind());
match op.operand().kind() {
LowLevelILExpressionKind::Reg(op) => {
assert_eq!(op.size(), 4);
match op.source_reg() {
LowLevelILRegister::ArchReg(reg) => assert_eq!(reg.name(), "ebp"),
_ => panic!("Expected Register::ArchReg"),
}
}
_ => panic!("Expected Reg"),
}
}
_ => panic!("Expected Push"),
}
// 2 @ 00025f13 (LLIL_SET_REG.d ebp = (LLIL_REG.d esp) {__saved_ebp})
let instr_2 = llil_instr_iter.next().unwrap();
assert_eq!(instr_2.index, LowLevelInstructionIndex(2));
assert_eq!(instr_2.address(), 0x00025f13);
println!("{:?}", instr_2.kind());
match instr_2.kind() {
LowLevelILInstructionKind::SetReg(op) => {
assert_eq!(op.size(), 4);
match op.dest_reg() {
LowLevelILRegister::ArchReg(reg) => assert_eq!(reg.name(), "ebp"),
_ => panic!("Expected Register::ArchReg"),
}
assert_eq!(op.source_expr().index, LowLevelExpressionIndex(4));
}
_ => panic!("Expected SetReg"),
}
// 3 @ 00025f15 (LLIL_SET_REG.d eax = (LLIL_LOAD.d [(LLIL_ADD.d (LLIL_REG.d ebp) + (LLIL_CONST.d 8)) {arg1}].d))
let instr_3 = llil_instr_iter.next().unwrap();
assert_eq!(instr_3.index, LowLevelInstructionIndex(3));
assert_eq!(instr_3.address(), 0x00025f15);
println!("{:?}", instr_3.kind());
match instr_3.kind() {
LowLevelILInstructionKind::SetReg(op) => {
assert_eq!(op.size(), 4);
match op.dest_reg() {
LowLevelILRegister::ArchReg(reg) => assert_eq!(reg.name(), "eax"),
_ => panic!("Expected Register::ArchReg"),
}
assert_eq!(op.source_expr().index, LowLevelExpressionIndex(9));
}
_ => panic!("Expected SetReg"),
}
// 4 @ 00025f18 (LLIL_PUSH.d push((LLIL_REG.d eax)))
let instr_4 = llil_instr_iter.next().unwrap();
assert_eq!(instr_4.index, LowLevelInstructionIndex(4));
assert_eq!(instr_4.address(), 0x00025f18);
println!("{:?}", instr_4.kind());
match instr_4.kind() {
LowLevelILInstructionKind::Push(op) => {
assert_eq!(op.size(), 4);
assert_eq!(op.operand().index, LowLevelExpressionIndex(11));
}
_ => panic!("Expected Push"),
}
// 5 @ 00025f19 (LLIL_CALL call((LLIL_CONST_PTR.d __crt_interlocked_read_32)))
let instr_5 = llil_instr_iter.next().unwrap();
assert_eq!(instr_5.index, LowLevelInstructionIndex(5));
assert_eq!(instr_5.address(), 0x00025f19);
println!("{:?}", instr_5.kind());
match instr_5.kind() {
LowLevelILInstructionKind::Call(op) => {
assert_eq!(op.target().index, LowLevelExpressionIndex(13));
}
_ => panic!("Expected Call"),
}
// 6 @ 00025f1e (LLIL_SET_REG.d esp = (LLIL_ADD.d (LLIL_REG.d esp) + (LLIL_CONST.d 4)))
let instr_6 = llil_instr_iter.next().unwrap();
assert_eq!(instr_6.index, LowLevelInstructionIndex(6));
assert_eq!(instr_6.address(), 0x00025f1e);
println!("{:?}", instr_6.kind());
match instr_6.kind() {
LowLevelILInstructionKind::SetReg(op) => {
assert_eq!(op.size(), 4);
match op.dest_reg() {
LowLevelILRegister::ArchReg(reg) => assert_eq!(reg.name(), "esp"),
_ => panic!("Expected Register::ArchReg"),
}
assert_eq!(op.source_expr().index, LowLevelExpressionIndex(17));
}
_ => panic!("Expected SetReg"),
}
// 7 @ 00025f21 (LLIL_SET_REG.d ebp = (LLIL_POP.d pop))
let instr_7 = llil_instr_iter.next().unwrap();
assert_eq!(instr_7.index, LowLevelInstructionIndex(7));
assert_eq!(instr_7.address(), 0x00025f21);
println!("{:?}", instr_7.kind());
match instr_7.kind() {
LowLevelILInstructionKind::SetReg(op) => {
assert_eq!(op.size(), 4);
match op.dest_reg() {
LowLevelILRegister::ArchReg(reg) => assert_eq!(reg.name(), "ebp"),
_ => panic!("Expected Register::ArchReg"),
}
assert_eq!(op.source_expr().index, LowLevelExpressionIndex(19));
}
_ => panic!("Expected SetReg"),
}
// 8 @ 00025f22 (LLIL_RET <return> jump((LLIL_POP.d pop)))
let instr_8 = llil_instr_iter.next().unwrap();
assert_eq!(instr_8.index, LowLevelInstructionIndex(8));
assert_eq!(instr_8.address(), 0x00025f22);
println!("{:?}", instr_8.kind());
match instr_8.kind() {
LowLevelILInstructionKind::Ret(op) => {
assert_eq!(op.target().index, LowLevelExpressionIndex(21));
}
_ => panic!("Expected Ret"),
}
}
#[rstest]
fn test_llil_visitor(_session: &Session) {
let out_dir = env!("OUT_DIR").parse::<PathBuf>().unwrap();
let view = binaryninja::load(out_dir.join("atox.obj")).expect("Failed to create view");
let platform = view.default_platform().unwrap();
// Sample function: __crt_strtox::c_string_character_source<char>::validate
let sample_function = view.function_at(&platform, 0x2bd80).unwrap();
let llil_function = sample_function.low_level_il().unwrap();
let llil_basic_blocks = llil_function.basic_blocks();
let llil_basic_block_iter = llil_basic_blocks.iter();
let mut basic_blocks_visited = 0;
let mut instructions_visited: Vec<LowLevelInstructionIndex> = vec![];
let mut expressions_visited: Vec<LowLevelExpressionIndex> = vec![];
for basic_block in llil_basic_block_iter {
basic_blocks_visited += 1;
for instr in basic_block.iter() {
instructions_visited.push(instr.index);
expressions_visited.push(instr.expr_idx());
instr.visit_tree(&mut |expr| {
expressions_visited.push(expr.index);
VisitorAction::Descend
});
}
}
assert_eq!(basic_blocks_visited, 10);
// This is a flag instruction removed in LLIL.
instructions_visited.push(LowLevelInstructionIndex(38));
for instr_idx in 0..41 {
if instructions_visited
.iter()
.find(|x| x.0 == instr_idx)
.is_none()
{
panic!("Instruction with index {:?} not visited", instr_idx);
};
}
// These are NOP's
expressions_visited.push(LowLevelExpressionIndex(24));
expressions_visited.push(LowLevelExpressionIndex(54));
expressions_visited.push(LowLevelExpressionIndex(62));
expressions_visited.push(LowLevelExpressionIndex(87));
// These are some flag things
expressions_visited.push(LowLevelExpressionIndex(114));
expressions_visited.push(LowLevelExpressionIndex(115));
expressions_visited.push(LowLevelExpressionIndex(116));
expressions_visited.push(LowLevelExpressionIndex(121));
for expr_idx in 0..127 {
if expressions_visited
.iter()
.find(|x| x.0 == expr_idx)
.is_none()
{
panic!("Expression with index {:?} not visited", expr_idx);
};
}
}
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