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use core::fmt; use super::{Address, Offset, Error, Encoding, Entry}; #[derive(Clone, Debug, Eq, PartialEq)] pub enum ProgramType { Null, Load, Dynamic, Interpreter, Note, Shlib, ProgramHeaderTable, OsSpecific(u32), ProcessorSprcific(u32), Unknown(u32), } impl From<u32> for ProgramType { fn from(v: u32) -> Self { match v { 0x00000000 => ProgramType::Null, 0x00000001 => ProgramType::Load, 0x00000002 => ProgramType::Dynamic, 0x00000003 => ProgramType::Interpreter, 0x00000004 => ProgramType::Note, 0x00000005 => ProgramType::Shlib, 0x00000006 => ProgramType::ProgramHeaderTable, t @ 0x60000000..=0x6fffffff => ProgramType::OsSpecific(t), t @ 0x70000000..=0x7fffffff => ProgramType::ProcessorSprcific(t), t => ProgramType::Unknown(t), } } } impl From<ProgramType> for u32 { fn from(v: ProgramType) -> Self { match v { ProgramType::Null => 0x00000000, ProgramType::Load => 0x00000001, ProgramType::Dynamic => 0x00000002, ProgramType::Interpreter => 0x00000003, ProgramType::Note => 0x00000004, ProgramType::Shlib => 0x00000005, ProgramType::ProgramHeaderTable => 0x00000006, ProgramType::OsSpecific(t) => 0x60000000 + (t & 0x0fffffff), ProgramType::ProcessorSprcific(t) => 0x70000000 + (t & 0x0fffffff), ProgramType::Unknown(t) => t, } } } bitflags! { pub struct ProgramFlags: u32 { const EXECUTE = 0b00000001; const WRITE = 0b00000010; const READ = 0b00000100; } } #[derive(Clone, Eq, PartialEq)] pub struct ProgramHeader { pub ty: ProgramType, pub flags: ProgramFlags, pub file_offset: Offset, pub virtual_address: Address, pub physical_address: Address, pub file_size: u64, pub memory_size: u64, pub address_alignment: u64, } impl<'a> fmt::Debug for ProgramHeader { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_struct("ProgramHeader") .field("type", &self.ty) .field("flags", &self.flags) .field("file_offset", &format_args!("0x{:016x}", self.file_offset)) .field( "virtual_address", &format_args!("0x{:016x}", self.virtual_address), ) .field( "physical_address", &format_args!("0x{:016x}", self.physical_address), ) .field("file_size", &format_args!("0x{:016x}", self.file_size)) .field("memory_size", &format_args!("0x{:016x}", self.memory_size)) .field( "address_alignment", &format_args!("0x{:016x}", self.address_alignment), ) .finish() } } impl Entry for ProgramHeader { type Error = Error; const SIZE: usize = 0x38; fn new(slice: &[u8], encoding: Encoding) -> Result<Self, Self::Error> { if slice.len() < Self::SIZE { return Err(Error::SliceTooShort); } Ok(ProgramHeader { ty: read_int!(&slice[0x00..], &encoding, u32).into(), flags: ProgramFlags::from_bits_truncate(read_int!(&slice[0x04..], &encoding, u32)), file_offset: read_int!(&slice[0x08..], &encoding, u64), virtual_address: read_int!(&slice[0x10..], &encoding, u64), physical_address: read_int!(&slice[0x18..], &encoding, u64), file_size: read_int!(&slice[0x20..], &encoding, u64), memory_size: read_int!(&slice[0x28..], &encoding, u64), address_alignment: read_int!(&slice[0x30..], &encoding, u64), }) } }