elf_utilities/header/
elf32.rs

1use crate::header::{class, data, elf_type, machine, osabi, version};
2use crate::*;
3use serde::{Deserialize, Serialize};
4
5#[derive(Clone, Copy, Hash, PartialOrd, Ord, PartialEq, Eq, Serialize, Deserialize)]
6#[repr(C)]
7pub struct Ehdr32 {
8    pub e_ident: [u8; 16],
9    pub e_type: Elf32Half,
10    pub e_machine: Elf32Half,
11    pub e_version: Elf32Word,
12    pub e_entry: Elf32Addr,
13    pub e_phoff: Elf32Off,
14    pub e_shoff: Elf32Off,
15    pub e_flags: Elf32Word,
16    pub e_ehsize: Elf32Half,
17    pub e_phentsize: Elf32Half,
18    pub e_phnum: Elf32Half,
19    pub e_shentsize: Elf32Half,
20    pub e_shnum: Elf32Half,
21    pub e_shstrndx: Elf32Half,
22}
23
24impl Default for Ehdr32 {
25    fn default() -> Self {
26        Self {
27            e_ident: [
28                0x7f, 0x45, 0x4c, 0x46, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
29                0x00, 0x00,
30            ],
31            e_type: 0,
32            e_machine: 0,
33            e_version: 0,
34            e_entry: 0,
35            e_phoff: 0,
36            e_shoff: 0,
37            e_flags: 0,
38            e_ehsize: 0,
39            e_phentsize: 0,
40            e_phnum: 0,
41            e_shentsize: 0,
42            e_shnum: 0,
43            e_shstrndx: 0,
44        }
45    }
46}
47
48impl Ehdr32 {
49    pub const SIZE: Elf32Half = 52;
50
51    pub fn get_class(&self) -> class::Class {
52        class::Class::from(self.e_ident[class::Class::INDEX])
53    }
54    pub fn get_data(&self) -> data::Data {
55        data::Data::from(self.e_ident[data::Data::INDEX])
56    }
57    pub fn get_file_version(&self) -> version::Version {
58        version::Version::from(self.e_ident[version::Version::INDEX])
59    }
60    pub fn get_object_version(&self) -> version::Version {
61        version::Version::from(self.e_version)
62    }
63    pub fn get_type(&self) -> elf_type::Type {
64        elf_type::Type::from(self.e_type)
65    }
66    pub fn get_machine(&self) -> machine::Machine {
67        machine::Machine::from(self.e_machine)
68    }
69    pub fn get_osabi(&self) -> osabi::OSABI {
70        osabi::OSABI::from(self.e_ident[osabi::OSABI::INDEX])
71    }
72    pub fn set_class(&mut self, c: class::Class) {
73        self.e_ident[class::Class::INDEX] = c.to_identifier();
74    }
75    pub fn set_data(&mut self, d: data::Data) {
76        self.e_ident[data::Data::INDEX] = d.to_identifier();
77    }
78    pub fn set_file_version(&mut self, v: version::Version) {
79        self.e_ident[version::Version::INDEX] = v.to_identifier();
80    }
81    pub fn set_object_version(&mut self, v: version::Version) {
82        self.e_version = v.to_object_version();
83    }
84    pub fn set_osabi(&mut self, o: osabi::OSABI) {
85        self.e_ident[osabi::OSABI::INDEX] = o.to_identifier();
86    }
87    pub fn set_elf_type(&mut self, e_type: elf_type::Type) {
88        self.e_type = e_type.to_bytes();
89    }
90    pub fn set_machine(&mut self, e_machine: machine::Machine) {
91        self.e_machine = e_machine.to_bytes();
92    }
93
94    /// Create Vec<u8> from this.
95    pub fn to_le_bytes(&self) -> Vec<u8> {
96        bincode::serialize(self).unwrap()
97    }
98
99    pub fn deserialize(buf: &[u8], start: usize) -> Result<Self, Box<dyn std::error::Error>> {
100        // bincode::ErrorKindをトレイトオブジェクトとするため,この冗長な書き方が必要
101        match bincode::deserialize(&buf[start..]) {
102            Ok(header) => Ok(header),
103            Err(e) => Err(e),
104        }
105    }
106}
elf_utilities/header/elf32.rs

elf_utilities/header/
elf32.rs
