iso9660/
types.rs

1//! Common types and constants for ISO9660
2
3// Vec is imported but not used in current stubs
4#[allow(unused_imports)]
5use alloc::vec::Vec;
6
7/// ISO9660 sector size (always 2048 bytes)
8pub const SECTOR_SIZE: usize = 2048;
9
10/// Volume descriptor set starts at sector 16
11pub const VOLUME_DESCRIPTOR_START: u64 = 16;
12
13/// Maximum path length
14pub const MAX_PATH_LENGTH: usize = 255;
15
16/// Maximum directory depth
17pub const MAX_DIRECTORY_DEPTH: usize = 8;
18
19/// Volume descriptor type codes
20#[derive(Debug, Clone, Copy, PartialEq, Eq)]
21#[repr(u8)]
22pub enum VolumeDescriptorType {
23    /// Boot Record (El Torito)
24    BootRecord = 0,
25    /// Primary Volume Descriptor
26    Primary = 1,
27    /// Supplementary Volume Descriptor (Joliet)
28    Supplementary = 2,
29    /// Volume Partition Descriptor
30    Partition = 3,
31    /// Volume Descriptor Set Terminator
32    Terminator = 255,
33}
34
35/// Parsed volume information
36#[derive(Debug, Clone)]
37pub struct VolumeInfo {
38    /// Volume identifier (32 chars)
39    pub volume_id: [u8; 32],
40    
41    /// Root directory extent location (LBA)
42    pub root_extent_lba: u32,
43    
44    /// Root directory extent length (bytes)
45    pub root_extent_len: u32,
46    
47    /// Logical block size (usually 2048)
48    pub logical_block_size: u16,
49    
50    /// Volume space size (total sectors)
51    pub volume_space_size: u32,
52    
53    /// El Torito boot catalog LBA (if present)
54    pub boot_catalog_lba: Option<u32>,
55    
56    /// Whether Joliet extensions are present
57    pub has_joliet: bool,
58    
59    /// Whether Rock Ridge extensions are present
60    pub has_rock_ridge: bool,
61}
62
63/// File entry metadata
64#[derive(Debug, Clone)]
65pub struct FileEntry {
66    /// File identifier (name as UTF-8)
67    pub name: alloc::string::String,
68    
69    /// File size in bytes
70    pub size: u64,
71    
72    /// Extent location (LBA)
73    pub extent_lba: u32,
74    
75    /// Data length (bytes)
76    pub data_length: u32,
77    
78    /// File flags
79    pub flags: FileFlags,
80    
81    /// File unit size (interleaved files)
82    pub file_unit_size: u8,
83    
84    /// Interleave gap size
85    pub interleave_gap: u8,
86}
87
88/// File flags from directory record
89#[derive(Debug, Clone, Copy, PartialEq, Eq)]
90pub struct FileFlags {
91    /// Hidden file
92    pub hidden: bool,
93    
94    /// Directory (not a file)
95    pub directory: bool,
96    
97    /// Associated file
98    pub associated: bool,
99    
100    /// Extended attribute record format
101    pub extended_format: bool,
102    
103    /// Owner/group permissions in extended attributes
104    pub extended_permissions: bool,
105    
106    /// Not final directory record for this file
107    pub not_final: bool,
108}
109
110/// Boot image information (El Torito)
111#[derive(Debug, Clone)]
112pub struct BootImage {
113    /// Bootable flag
114    pub bootable: bool,
115    
116    /// Boot media type
117    pub media_type: BootMediaType,
118    
119    /// Load segment (x86)
120    pub load_segment: u16,
121    
122    /// System type
123    pub system_type: u8,
124    
125    /// Sector count
126    pub sector_count: u16,
127    
128    /// Virtual disk LBA
129    pub load_rba: u32,
130    
131    /// Platform ID
132    pub platform: BootPlatform,
133}
134
135/// Boot media type
136#[derive(Debug, Clone, Copy, PartialEq, Eq)]
137#[repr(u8)]
138pub enum BootMediaType {
139    /// No emulation
140    NoEmulation = 0,
141    /// 1.2MB floppy
142    Floppy12M = 1,
143    /// 1.44MB floppy
144    Floppy144M = 2,
145    /// 2.88MB floppy
146    Floppy288M = 3,
147    /// Hard disk
148    HardDisk = 4,
149}
150
151/// Boot platform ID
152#[derive(Debug, Clone, Copy, PartialEq, Eq)]
153#[repr(u8)]
154pub enum BootPlatform {
155    /// x86 PC
156    X86 = 0,
157    /// PowerPC
158    PowerPC = 1,
159    /// Mac
160    Mac = 2,
161    /// EFI
162    Efi = 0xEF,
163}
iso9660/types.rs

iso9660/
types.rs
