Support virtio-fs #88
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| #include "riscv.h" | ||
| #include "virtio.h" | ||
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| #define FUSE_REC_ALIGN(x) \ | ||
| (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1)) | ||
| #define FUSE_DIRENT_ALIGN(x) FUSE_REC_ALIGN(x) | ||
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| struct fuse_in_header { | ||
| uint32_t len; | ||
| uint32_t opcode; | ||
| uint64_t unique; | ||
| uint64_t nodeid; | ||
| uint32_t uid; | ||
| uint32_t gid; | ||
| uint32_t pid; | ||
| uint32_t padding; | ||
| }; | ||
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| struct fuse_out_header { | ||
| uint32_t len; | ||
| int32_t error; | ||
| uint64_t unique; | ||
| }; | ||
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| struct vfs_req_header { | ||
| struct fuse_in_header in; | ||
| }; | ||
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| struct vfs_resp_header { | ||
| struct fuse_out_header out; | ||
| }; | ||
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| struct fuse_init_in { | ||
| /* FUSE major version supported by the guest (typically 7) */ | ||
| uint32_t major; | ||
| /* FUSE minor version supported by the guest (e.g., 31, 26) */ | ||
| uint32_t minor; | ||
| uint32_t max_readahead; /* Maximum readahead size supported by the guest */ | ||
| uint32_t flags; /* Flags requested by the guest */ | ||
| }; | ||
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| struct fuse_init_out { | ||
| uint32_t major; /* FUSE major version supported by the device */ | ||
| uint32_t minor; /* FUSE minor version supported by the device */ | ||
| uint32_t max_readahead; /* Maximum readahead size accepted by the device */ | ||
| /* Flags supported by the device (negotiated with the guest) */ | ||
| uint32_t flags; | ||
| uint16_t max_background; /* Maximum number of background requests */ | ||
| uint16_t congestion_threshold; | ||
| uint32_t max_write; /* Maximum write size the device can handle */ | ||
| uint32_t time_gran; /* Time granularity (in nanoseconds) */ | ||
| uint32_t unused[11]; /* Reserved */ | ||
| }; | ||
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| struct fuse_getattr_in { | ||
| /* bitmask for valid fields (e.g. FUSE_GETATTR_FH) */ | ||
| uint32_t getattr_flags; | ||
| uint32_t padding; /* unused, reserved for alignment */ | ||
| uint64_t fh; /* optional: file handle (used when getattr_flags has */ | ||
| }; | ||
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| struct fuse_attr { | ||
| uint64_t ino; /* inode number */ | ||
| uint64_t size; /* file size in bytes */ | ||
| uint64_t blocks; /* number of 512B blocks allocated */ | ||
| uint64_t atime; /* last access time (UNIX time) */ | ||
| uint64_t mtime; /* last modification time */ | ||
| uint64_t ctime; /* last status change time */ | ||
| uint32_t atimensec; /* nanoseconds part */ | ||
| uint32_t mtimensec; | ||
| uint32_t ctimensec; | ||
| uint32_t mode; /* file mode (e.g. S_IFDIR | 0755) */ | ||
| uint32_t nlink; /* number of hard links */ | ||
| uint32_t uid; /* owner uid */ | ||
| uint32_t gid; /* owner gid */ | ||
| uint32_t rdev; /* device ID (if special file) */ | ||
| uint32_t blksize; /* block size */ | ||
| uint32_t flags; /* reserved */ | ||
| }; | ||
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| struct fuse_attr_out { | ||
| uint64_t attr_valid; /* seconds the attributes are valid */ | ||
| uint32_t attr_valid_nsec; /* nanoseconds part of attr_valid */ | ||
| uint32_t dummy; /* padding for alignment */ | ||
| struct fuse_attr attr; /* actual attributes */ | ||
| }; | ||
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| struct fuse_open_in { | ||
| uint32_t flags; | ||
| uint32_t open_flags; | ||
| }; | ||
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| struct fuse_open_out { | ||
| uint64_t fh; | ||
| uint32_t open_flags; | ||
| int32_t backing_id; | ||
| }; | ||
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| struct fuse_read_in { | ||
| uint64_t fh; | ||
| uint64_t offset; | ||
| uint32_t size; | ||
| uint32_t read_flags; | ||
| uint64_t lock_owner; | ||
| uint32_t flags; | ||
| uint32_t padding; | ||
| }; | ||
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| struct fuse_entry_out { | ||
| uint64_t nodeid; /* inode number */ | ||
| uint64_t generation; /* inode generation */ | ||
| uint64_t entry_valid; /* cache timeout (sec) */ | ||
| uint64_t attr_valid; /* attr cache timeout (sec) */ | ||
| uint32_t entry_valid_nsec; /* cache timeout (nsec) */ | ||
| uint32_t attr_valid_nsec; /* attr cache timeout (nsec) */ | ||
| struct fuse_attr attr; /* file attributes */ | ||
| }; | ||
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| struct fuse_dirent { | ||
| uint64_t ino; /* inode number */ | ||
| uint64_t off; /* offset to next entry */ | ||
| uint32_t namelen; /* length of the entry name */ | ||
| uint32_t type; /* file type (DT_REG, DT_DIR, etc.) */ | ||
| char name[]; /* name (not null-terminated) */ | ||
| }; | ||
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| struct fuse_direntplus { | ||
| struct fuse_entry_out entry_out; | ||
| struct fuse_dirent dirent; | ||
| }; | ||
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| struct fuse_lookup_in { | ||
| uint64_t parent; /* inode of parent dir */ | ||
| }; | ||
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| struct fuse_forget_in { | ||
| uint64_t nlookup; | ||
| }; | ||
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| struct fuse_create_in { | ||
| uint32_t flags; | ||
| uint32_t mode; | ||
| uint32_t umask; | ||
| uint32_t open_flags; | ||
| }; | ||
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| struct fuse_release_in { | ||
| uint64_t fh; | ||
| uint32_t flags; | ||
| uint32_t release_flags; | ||
| uint64_t lock_owner; | ||
| }; | ||
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| struct fuse_flush_in { | ||
| uint64_t fh; | ||
| uint32_t unused; | ||
| uint32_t padding; | ||
| uint64_t lock_owner; | ||
| }; | ||
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Remove redundant line.