feat: 添加前后端交互的示例代码

This commit is contained in:
2024-12-08 02:03:27 +08:00
parent 601b373593
commit f8ec30acfc
24 changed files with 1473 additions and 630 deletions

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use thiserror::Error;
#[derive(Error, Debug)]
pub enum PEParseError {
#[error("无效的DOSMagic值")]
InvalidDOSMagic,
#[error("Invalid NT header signature")]
InvalidNTSignature,
#[error("Invalid optional header magic number")]
InvalidOptionalMagic,
#[error("Invalid optional header size")]
InvalidOptionalSize,
#[error("解析超出了文件范围")]
OutOfBounds
}

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use super::types::*;
use bitflags::bitflags;
#[repr(C)]
pub struct ImageDosHeader {
pub e_magic: u16, // Magic number 固定值 0x5A4D
pub e_cblp: u16,
pub e_cp: u16,
pub e_crlc: u16,
pub e_cparhdr: u16,
pub e_minalloc: u16,
pub e_maxalloc: u16,
pub e_ss: u16,
pub e_sp: u16,
pub e_csum: u16,
pub e_ip: u16,
pub e_cs: u16,
pub e_lfarlc: u16,
pub e_ovno: u16,
pub e_res: [u16; 4],
pub e_oemid: u16,
pub e_oeminfo: u16,
pub e_res2: [u16; 10],
pub e_lfanew: Offset, // File address of new exe header nt头的偏移
}
#[repr(C)]
pub struct ImageNTHeaders32 {
pub signature: u32,
pub file_header: ImageFileHeader,
pub optional_header: ImageOptionalHeader32,
}
#[repr(C)]
pub struct ImageFileHeader {
pub machine: u16,
pub number_of_sections: u16,
pub time_date_stamp: u32,
pub pointer_to_symbol_table: Offset,
pub number_of_symbols: u32,
pub size_of_optional_header: u16,
pub characteristics: FileCharacteristics,
}
bitflags! {
#[repr(C)]
pub struct FileCharacteristics: u16 {
const RELOCS_STRIPPED = 0x0001;
const EXECUTABLE_IMAGE = 0x0002;
const LINE_NUMS_STRIPPED = 0x0004;
const LOCAL_SYMS_STRIPPED = 0x0008;
const AGGRESSIVE_WS_TRIM = 0x0010;
const LARGE_ADDRESS_AWARE = 0x0020;
const BYTES_REVERSED_LO = 0x0080;
const MACHINE_32BIT = 0x0100;
const DEBUG_STRIPPED = 0x0200;
const REMOVABLE_RUN_FROM_SWAP = 0x0400;
const NET_RUN_FROM_SWAP = 0x0800;
const SYSTEM = 0x1000;
const DLL = 0x2000;
const UP_SYSTEM_ONLY = 0x4000;
const BYTES_REVERSED_HI = 0x8000;
}
#[repr(C)]
pub struct DLLCharacteristics: u16 {
const RESERVED1 = 0x0001;
const RESERVED2 = 0x0002;
const RESERVED4 = 0x0004;
const RESERVED8 = 0x0008;
const HIGH_ENTROPY_VA = 0x0020;
const DYNAMIC_BASE = 0x0040;
const FORCE_INTEGRITY = 0x0080;
const NX_COMPAT = 0x0100;
const NO_ISOLATION = 0x0200;
const NO_SEH = 0x0400;
const NO_BIND = 0x0800;
const APPCONTAINER = 0x1000;
const WDM_DRIVER = 0x2000;
const GUARD_CF = 0x4000;
const TERMINAL_SERVER_AWARE = 0x8000;
}
}
#[repr(C)]
pub struct ImageOptionalHeader32 {
pub magic: u16,
pub major_linker_version: u8,
pub minor_linker_version: u8,
pub size_of_code: u32,
pub size_of_initialized_data: u32,
pub size_of_uninitialized_data: u32,
pub address_of_entry_point: RVA,
pub base_of_code: RVA,
pub base_of_data: RVA,
pub image_base: u32,
pub section_alignment: u32,
pub file_alignment: u32,
pub major_operating_system_version: u16,
pub minor_operating_system_version: u16,
pub major_image_version: u16,
pub minor_image_version: u16,
pub major_subsystem_version: u16,
pub minor_subsystem_version: u16,
pub win32_version_value: u32,
pub size_of_image: u32,
pub size_of_headers: u32,
pub checksum: u32,
pub subsystem: u16,
pub dll_characteristics: DLLCharacteristics,
pub size_of_stack_reserve: u32,
pub size_of_stack_commit: u32,
pub size_of_heap_reserve: u32,
pub size_of_heap_commit: u32,
pub loader_flags: u32,
pub number_of_rva_and_sizes: u32,
}

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pub mod header;
pub mod types;
pub mod pe;
pub mod error;

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use std::ops::{Deref, DerefMut};
use super::{error::PEParseError, header::*};
pub trait PE: Deref<Target = [u8]> + DerefMut<Target = [u8]> + Sized {
/// Get a reference to a type at a given offset.
fn get_ref<T>(&self, offset: usize) -> Result<&T, PEParseError> {
let len = std::mem::size_of::<T>();
if offset + len > self.len() {
return Err(PEParseError::OutOfBounds);
}
let ptr = self.as_ptr().wrapping_offset(offset as isize) as *const T;
Ok(unsafe { &*ptr })
}
/// Get a mutable reference to a type at a given offset.
fn get_mut<T>(&mut self, offset: usize) -> Result<&mut T, PEParseError> {
let len = std::mem::size_of::<T>();
if offset + len > self.len() {
return Err(PEParseError::OutOfBounds);
}
let ptr = self.as_mut_ptr().wrapping_offset(offset as isize) as *mut T;
Ok(unsafe { &mut *ptr })
}
/// Get the DOS header without verifying its contents.
fn get_dos_header(&self) -> Result<&ImageDosHeader, PEParseError> {
let result = self.get_ref::<ImageDosHeader>(0)?;
Ok(result)
}
/// Get the DOS header without mutating its contents.
fn get_dos_header_mut(&mut self) -> Result<&mut ImageDosHeader, PEParseError> {
let result = self.get_mut::<ImageDosHeader>(0)?;
Ok(result)
}
}

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#[repr(C)]
pub struct Offset(pub u32);
pub struct RVA(pub u32);