squashfs_async/
error.rs

1//! SquashFS reading error.
2use fuser_async::Error as ErrorFuse;
3
4use crate::superblock::Compression;
5
6pub(crate) type CacheError = fuser_async::cache::CacheError<Box<Error>>;
7
8/// Main error type.
9#[derive(thiserror::Error, Debug)]
10pub enum Error {
11    #[error("Invalid buffer size")]
12    InvalidBufferSize,
13    #[error("Invalid superblock")]
14    InvalidSuperblock,
15    #[error("Read failure")]
16    ReadFailure(std::io::Error),
17    #[error("File not found: {0:?}")]
18    FileNotFound(Option<String>),
19    #[error("Directory not found")]
20    DirectoryNotFound,
21    #[error("Invalid file offset")]
22    InvalidOffset,
23    #[error("Cache error: {source}")]
24    CacheError {
25        #[from]
26        source: CacheError,
27    },
28    #[error("Readers pool error: {source}")]
29    PoolError {
30        #[from]
31        source: deadpool::managed::PoolError<std::io::Error>,
32    },
33    #[error("Readers pool creation error: {source}")]
34    PoolBuildError {
35        #[from]
36        source: deadpool::managed::BuildError<std::io::Error>,
37    },
38    #[error("Invalid options: {0}")]
39    InvalidOptions(&'static str),
40    #[error("Fragments error: {0}")]
41    Fragments(#[from] FragmentsError),
42    #[error("Inode table error: {0}")]
43    InodeTable(#[from] InodeTableError),
44    #[error("Directory table error: {0}")]
45    DirectoryTable(#[from] DirectoryTableError),
46    #[error("Metadata error: {0}")]
47    Metadata(#[from] MetadataError),
48    #[error("Decompression error: {0}")]
49    Decompress(#[from] DecompressError),
50    #[error("Unsupported encoding")]
51    Encoding,
52    #[error("Invalid inode")]
53    InvalidInode,
54    #[cfg(feature = "memmap")]
55    #[error("Failed to memory map file")]
56    MemMap,
57    #[error("{0}")]
58    Fuse(#[from] ErrorFuse),
59}
60
61impl From<Error> for ErrorFuse {
62    fn from(source: Error) -> Self {
63        match source {
64            Error::FileNotFound(_) | Error::DirectoryNotFound => Self::NoFileDir,
65            Error::InvalidInode | Error::InvalidOffset => Self::InvalidArgument,
66            Error::Encoding => Self::Unimplemented,
67            Error::Fuse(e) => e,
68            _ => Self::IO(source.to_string()),
69        }
70    }
71}
72
73/// Decompression error, for compressed archives.
74#[derive(thiserror::Error, Debug)]
75pub enum DecompressError {
76    #[error("Failed to decompress data: {0}")]
77    Io(#[from] tokio::io::Error),
78    #[error("Unsupported compression {0:?}")]
79    UnsupportedCompression(Compression),
80}
81/// Metadata parsing error.
82#[derive(thiserror::Error, Debug)]
83pub enum MetadataError {
84    #[error("Invalid header")]
85    InvalidHeader,
86    #[error("Invalid entry")]
87    InvalidEntry,
88    #[error("Invalid data length")]
89    InvalidDataLength,
90    #[error("Read failure")]
91    ReadFailure(std::io::Error),
92    #[error("Decompression error: {0}")]
93    Decompress(#[from] DecompressError),
94}
95/// Inode table error.
96#[derive(thiserror::Error, Debug)]
97pub enum InodeTableError {
98    #[error("Invalid header")]
99    InvalidHeader,
100    #[error("Invalid entry")]
101    InvalidEntry,
102    #[error("Invalid metadata: {0}")]
103    InvalidMetadata(#[from] MetadataError),
104    #[error("Read failure")]
105    ReadFailure(std::io::Error),
106}
107/// Directory table error.
108#[derive(thiserror::Error, Debug)]
109pub enum DirectoryTableError {
110    #[error("Invalid header")]
111    InvalidHeader,
112    #[error("Invalid entry")]
113    InvalidEntry,
114    #[error("Invalid metadata: {0}")]
115    InvalidMetadata(#[from] MetadataError),
116    #[error("Read failure")]
117    ReadFailure(std::io::Error),
118}
119/// Fragments error.
120#[derive(thiserror::Error, Debug)]
121pub enum FragmentsError {
122    #[error("Invalid location in fragment table")]
123    InvalidLocation,
124    #[error("Invalid metadata: {0}")]
125    InvalidMetadata(#[from] MetadataError),
126    #[error("Invalid fragment table entry")]
127    InvalidEntry,
128    #[error("Read failure")]
129    ReadFailure(std::io::Error),
130}
squashfs_async/error.rs

squashfs_async/
error.rs
