File system access library.

1 files changed, 94 insertions, 0 deletions

diff --git a/include/diskfs.h b/include/diskfs.h
new file mode 100644
index 00000000..9d69bfff
--- /dev/null
+++ b/include/diskfs.h
@@ -0,0 +1,94 @@
+/* Copyright (c) Russ Cox, MIT; see src/libdiskfs/COPYRIGHT */
+
+AUTOLIB(diskfs)
+
+typedef struct Block Block;
+typedef struct Disk Disk;
+typedef struct Fsys Fsys;
+
+#ifndef _NFS3H_	/* in case sunrpc.h, nfs3.h are not included */
+typedef struct SunAuthUnix SunAuthUnix;
+typedef struct Nfs3Attr Nfs3Attr;
+typedef struct Nfs3Entry Nfs3Entry;
+typedef struct Nfs3Handle Nfs3Handle;
+typedef int Nfs3Status;
+#endif
+struct VtCache;
+
+struct Disk
+{
+	Block *(*_read)(Disk *disk, u32int count, u64int offset);
+	int (*_sync)(Disk*);
+	void (*_close)(Disk*);
+	void *priv;
+};
+
+struct Block
+{
+	Disk *disk;
+	u32int len;
+	uchar *data;
+	void (*_close)(Block*);
+	void *priv;
+};
+
+struct Fsys
+{
+	u32int blocksize;
+	u32int nblock;
+	char *type;
+
+	Disk *disk;
+	Block *(*_readblock)(Fsys *fsys, u64int blockno);
+	int (*_sync)(Fsys *fsys);
+	void (*_close)(Fsys *fsys);
+
+	Nfs3Status (*_root)(Fsys*, Nfs3Handle*);
+	Nfs3Status (*_access)(Fsys*, SunAuthUnix*, Nfs3Handle*, u32int, u32int*, Nfs3Attr*);
+	Nfs3Status (*_lookup)(Fsys*, SunAuthUnix*, Nfs3Handle*, char*, Nfs3Handle*);
+	Nfs3Status (*_getattr)(Fsys*, SunAuthUnix*, Nfs3Handle*, Nfs3Attr*);
+	Nfs3Status (*_readdir)(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, u32int count, u64int cookie, uchar**, u32int*, uchar*);
+	Nfs3Status (*_readfile)(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, u32int count, u64int offset, uchar**, u32int*, uchar*);
+	Nfs3Status (*_readlink)(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, char **link);
+
+	void *priv;
+};
+
+struct Handle
+{
+	uchar h[64];
+	int len;
+};
+
+void		blockdump(Block *b, char *desc);
+void		blockput(Block *b);
+
+Disk*	diskcache(Disk*, uint, uint);
+Disk*	diskopenventi(struct VtCache*, uchar*);
+Disk*	diskopenfile(char *file);
+
+Disk*	diskopen(char *file);
+void		diskclose(Disk *disk);
+Block*	diskread(Disk *disk, u32int, u64int offset);
+int		disksync(Disk *disk);
+
+Fsys*	fsysopenffs(Disk*);
+Fsys*	fsysopenkfs(Disk*);
+Fsys*	fsysopenext2(Disk*);
+Fsys*	fsysopenfat(Disk*);
+
+Fsys*	fsysopen(Disk *disk);
+Block*	fsysreadblock(Fsys *fsys, u64int blockno);
+int		fsyssync(Fsys *fsys);
+void		fsysclose(Fsys *fsys);
+
+Nfs3Status		fsysroot(Fsys *fsys, Nfs3Handle *h);
+Nfs3Status		fsyslookup(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, char *name, Nfs3Handle *nh);
+Nfs3Status		fsysgetattr(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, Nfs3Attr *attr);
+Nfs3Status		fsysreaddir(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, u32int count, u64int cookie, uchar **e, u32int *ne, uchar*);
+Nfs3Status		fsysreadfile(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, u32int, u64int, uchar**, u32int*, uchar*);
+Nfs3Status		fsysreadlink(Fsys *fsys, SunAuthUnix*, Nfs3Handle *h, char **plink);
+Nfs3Status		fsysaccess(Fsys *fsys, SunAuthUnix*, Nfs3Handle*, u32int, u32int*, Nfs3Attr*);
+void*	emalloc(ulong size);	/* provided by caller */
+
+extern int allowall;