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/*
* 9p
*
* Copyright IBM, Corp. 2010
*
* Authors:
* Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#ifndef QEMU_9P_XATTR_H
#define QEMU_9P_XATTR_H
#include "qemu/xattr.h"
typedef struct xattr_operations
{
const char *name;
ssize_t (*getxattr)(FsContext *ctx, const char *path,
const char *name, void *value, size_t size);
ssize_t (*listxattr)(FsContext *ctx, const char *path,
char *name, void *value, size_t size);
int (*setxattr)(FsContext *ctx, const char *path, const char *name,
void *value, size_t size, int flags);
int (*removexattr)(FsContext *ctx,
const char *path, const char *name);
} XattrOperations;
extern XattrOperations mapped_user_xattr;
extern XattrOperations passthrough_user_xattr;
extern XattrOperations mapped_pacl_xattr;
extern XattrOperations mapped_dacl_xattr;
extern XattrOperations passthrough_acl_xattr;
extern XattrOperations none_acl_xattr;
extern XattrOperations *mapped_xattr_ops[];
extern XattrOperations *passthrough_xattr_ops[];
extern XattrOperations *none_xattr_ops[];
ssize_t v9fs_get_xattr(FsContext *ctx, const char *path, const char *name,
void *value, size_t size);
ssize_t v9fs_list_xattr(FsContext *ctx, const char *path, void *value,
size_t vsize);
int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name,
void *value, size_t size, int flags);
int v9fs_remove_xattr(FsContext *ctx, const char *path, const char *name);
ssize_t pt_listxattr(FsContext *ctx, const char *path, char *name, void *value,
size_t size);
static inline ssize_t pt_getxattr(FsContext *ctx, const char *path,
const char *name, void *value, size_t size)
{
#ifdef CONFIG_MARU
#ifndef CONFIG_WIN32
char *buffer;
ssize_t ret;
buffer = rpath(ctx, path);
#ifdef CONFIG_LINUX
ret = lgetxattr(buffer, name, value, size);
#else
ret = getxattr(buffer, name, value, size, 0, XATTR_NOFOLLOW);
#endif
g_free(buffer);
return ret;
#else
return 0;
#endif
#else
char *buffer;
ssize_t ret;
buffer = rpath(ctx, path);
ret = lgetxattr(buffer, name, value, size);
g_free(buffer);
return ret;
#endif
}
static inline int pt_setxattr(FsContext *ctx, const char *path,
const char *name, void *value,
size_t size, int flags)
{
#ifdef CONFIG_MARU
#ifndef CONFIG_WIN32
char *buffer;
int ret;
buffer = rpath(ctx, path);
#ifdef CONFIG_LINUX
ret = lsetxattr(buffer, name, value, size, flags);
#else
ret = setxattr(buffer, name, value, size, 0, flags | XATTR_NOFOLLOW);
#endif
g_free(buffer);
return ret;
#else
return 0;
#endif
#else
char *buffer;
int ret;
buffer = rpath(ctx, path);
ret = lsetxattr(buffer, name, value, size, flags);
g_free(buffer);
return ret;
#endif
}
static inline int pt_removexattr(FsContext *ctx,
const char *path, const char *name)
{
#ifdef CONFIG_MARU
#ifndef CONFIG_WIN32
char *buffer;
int ret;
buffer = rpath(ctx, path);
#ifdef CONFIG_LINUX
ret = lremovexattr(path, name);
#else
ret = removexattr(path, name, XATTR_NOFOLLOW);
#endif
g_free(buffer);
return ret;
#else
return 0;
#endif
#else
char *buffer;
int ret;
buffer = rpath(ctx, path);
ret = lremovexattr(path, name);
g_free(buffer);
return ret;
#endif
}
static inline ssize_t notsup_getxattr(FsContext *ctx, const char *path,
const char *name, void *value,
size_t size)
{
errno = ENOTSUP;
return -1;
}
static inline int notsup_setxattr(FsContext *ctx, const char *path,
const char *name, void *value,
size_t size, int flags)
{
errno = ENOTSUP;
return -1;
}
static inline ssize_t notsup_listxattr(FsContext *ctx, const char *path,
char *name, void *value, size_t size)
{
return 0;
}
static inline int notsup_removexattr(FsContext *ctx,
const char *path, const char *name)
{
errno = ENOTSUP;
return -1;
}
#endif
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