Git Repo - qemu.git/blame_incremental

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Commit	Line	Data
	1	/*
	2	* 9p
	3	*
	4	* Copyright IBM, Corp. 2010
	5	*
	6	* Authors:
	7	* Aneesh Kumar K.V <[email protected]>
	8	*
	9	* This work is licensed under the terms of the GNU GPL, version 2. See
	10	* the COPYING file in the top-level directory.
	11	*
	12	*/
	13
	14	#ifndef FILE_OP_9P_H
	15	#define FILE_OP_9P_H
	16
	17	#include <dirent.h>
	18	#include <utime.h>
	19	#include <sys/vfs.h>
	20	#include "qemu-fsdev-throttle.h"
	21
	22	#define SM_LOCAL_MODE_BITS 0600
	23	#define SM_LOCAL_DIR_MODE_BITS 0700
	24
	25	typedef struct FsCred
	26	{
	27	uid_t fc_uid;
	28	gid_t fc_gid;
	29	mode_t fc_mode;
	30	dev_t fc_rdev;
	31	} FsCred;
	32
	33	struct xattr_operations;
	34	struct FsContext;
	35	struct V9fsPath;
	36
	37	typedef struct extended_ops {
	38	int (get_st_gen)(struct FsContext , struct V9fsPath *,
	39	mode_t, uint64_t *);
	40	} extended_ops;
	41
	42	/* export flags */
	43	#define V9FS_IMMEDIATE_WRITEOUT 0x00000001
	44	#define V9FS_PATHNAME_FSCONTEXT 0x00000002
	45	/*
	46	* uid/gid set on fileserver files
	47	*/
	48	#define V9FS_SM_PASSTHROUGH 0x00000004
	49	/*
	50	* uid/gid part of xattr
	51	*/
	52	#define V9FS_SM_MAPPED 0x00000008
	53	/*
	54	* Server will try to set uid/gid.
	55	* On failure ignore the error.
	56	*/
	57	#define V9FS_SM_NONE 0x00000010
	58	/*
	59	* uid/gid part of .virtfs_meatadata namespace
	60	*/
	61	#define V9FS_SM_MAPPED_FILE 0x00000020
	62	#define V9FS_RDONLY 0x00000040
	63	#define V9FS_PROXY_SOCK_FD 0x00000080
	64	#define V9FS_PROXY_SOCK_NAME 0x00000100
	65
	66	#define V9FS_SEC_MASK 0x0000003C
	67
	68
	69	typedef struct FileOperations FileOperations;
	70	/*
	71	* Structure to store the various fsdev's passed through command line.
	72	*/
	73	typedef struct FsDriverEntry {
	74	char *fsdev_id;
	75	char *path;
	76	int export_flags;
	77	FileOperations *ops;
	78	FsThrottle fst;
	79	} FsDriverEntry;
	80
	81	typedef struct FsContext
	82	{
	83	uid_t uid;
	84	char *fs_root;
	85	int export_flags;
	86	struct xattr_operations **xops;
	87	struct extended_ops exops;
	88	FsThrottle *fst;
	89	/* fs driver specific data */
	90	void *private;
	91	} FsContext;
	92
	93	typedef struct V9fsPath {
	94	uint16_t size;
	95	char *data;
	96	} V9fsPath;
	97
	98	typedef union V9fsFidOpenState V9fsFidOpenState;
	99
	100	void cred_init(FsCred *);
	101
	102	struct FileOperations
	103	{
	104	int (parse_opts)(QemuOpts , struct FsDriverEntry *);
	105	int (init)(struct FsContext );
	106	void (cleanup)(struct FsContext );
	107	int (lstat)(FsContext , V9fsPath , struct stat );
	108	ssize_t (readlink)(FsContext , V9fsPath , char , size_t);
	109	int (chmod)(FsContext , V9fsPath , FsCred );
	110	int (chown)(FsContext , V9fsPath , FsCred );
	111	int (mknod)(FsContext , V9fsPath , const char , FsCred *);
	112	int (utimensat)(FsContext , V9fsPath , const struct timespec );
	113	int (remove)(FsContext , const char *);
	114	int (symlink)(FsContext , const char , V9fsPath ,
	115	const char , FsCred );
	116	int (link)(FsContext , V9fsPath , V9fsPath , const char *);
	117	int (setuid)(FsContext , uid_t);
	118	int (close)(FsContext , V9fsFidOpenState *);
	119	int (closedir)(FsContext , V9fsFidOpenState *);
	120	int (opendir)(FsContext , V9fsPath , V9fsFidOpenState );
	121	int (open)(FsContext , V9fsPath , int, V9fsFidOpenState );
	122	int (open2)(FsContext , V9fsPath , const char ,
	123	int, FsCred , V9fsFidOpenState );
	124	void (rewinddir)(FsContext , V9fsFidOpenState *);
	125	off_t (telldir)(FsContext , V9fsFidOpenState *);
	126	struct dirent * (readdir)(FsContext , V9fsFidOpenState *);
	127	void (seekdir)(FsContext , V9fsFidOpenState *, off_t);
	128	ssize_t (preadv)(FsContext , V9fsFidOpenState *,
	129	const struct iovec *, int, off_t);
	130	ssize_t (pwritev)(FsContext , V9fsFidOpenState *,
	131	const struct iovec *, int, off_t);
	132	int (mkdir)(FsContext , V9fsPath , const char , FsCred *);
	133	int (fstat)(FsContext , int, V9fsFidOpenState , struct stat );
	134	int (rename)(FsContext , const char , const char );
	135	int (truncate)(FsContext , V9fsPath *, off_t);
	136	int (fsync)(FsContext , int, V9fsFidOpenState *, int);
	137	int (statfs)(FsContext s, V9fsPath path, struct statfs stbuf);
	138	ssize_t (lgetxattr)(FsContext , V9fsPath *,
	139	const char , void , size_t);
	140	ssize_t (llistxattr)(FsContext , V9fsPath , void , size_t);
	141	int (lsetxattr)(FsContext , V9fsPath *,
	142	const char , void , size_t, int);
	143	int (lremovexattr)(FsContext , V9fsPath , const char );
	144	int (name_to_path)(FsContext , V9fsPath , const char , V9fsPath *);
	145	int (renameat)(FsContext ctx, V9fsPath olddir, const char old_name,
	146	V9fsPath newdir, const char new_name);
	147	int (unlinkat)(FsContext ctx, V9fsPath dir, const char name, int flags);
	148	void *opaque;
	149	};
	150
	151	#endif