// SPDX-License-Identifier: LGPL-2.1
/*
* Copyright IBM Corporation, 2010
* Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
*/
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/uio.h>
#include <linux/posix_acl_xattr.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
#include "fid.h"
#include "xattr.h"
ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name,
void *buffer, size_t buffer_size)
{
ssize_t retval;
u64 attr_size;
struct p9_fid *attr_fid;
struct kvec kvec = {.iov_base = buffer, .iov_len = buffer_size};
struct iov_iter to;
int err;
iov_iter_kvec(&to, ITER_DEST, &kvec, 1, buffer_size);
attr_fid = p9_client_xattrwalk(fid, name, &attr_size);
if (IS_ERR(attr_fid)) {
retval = PTR_ERR(attr_fid);
p9_debug(P9_DEBUG_VFS, "p9_client_attrwalk failed %zd\n",
retval);
return retval;
}
if (attr_size > buffer_size) {
if (buffer_size)
retval = -ERANGE;
else if (attr_size > SSIZE_MAX)
retval = -EOVERFLOW;
else /* request to get the attr_size */
retval = attr_size;
} else {
iov_iter_truncate(&to, attr_size);
retval = p9_client_read(attr_fid, 0, &to, &err);
if (err)
retval = err;
}
p9_fid_put(attr_fid);
return retval;
}
/*
* v9fs_xattr_get()
*
* Copy an extended attribute into the buffer
* provided, or compute the buffer size required.
* Buffer is NULL to compute the size of the buffer required.
*
* Returns a negative error number on failure, or the number of bytes
* used / required on success.
*/
ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
void *buffer, size_t buffer_size)
{
struct p9_fid *fid;
int ret;
p9_debug(P9_DEBUG_VFS, "name = '%s' value_len = %zu\n",
name, buffer_size);
fid = v9fs_fid_lookup(dentry);
if (IS_ERR(fid))
return PTR_ERR(fid);
ret = v9fs_fid_xattr_get(fid, name, buffer, buffer_size);
p9_fid_put(fid);
return ret;
}
/*
* v9fs_xattr_set()
*
* Create, replace or java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 2
* is NULL to remove an existing extended attribute, and non-NULL to
* struct p9_fid *fid;
* attribute. * attribute. The
* IS_ERR()
call,
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
* Returns0,or anegative error number on failure.
*/
intjava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 59
;
{
int;
fid = v9fs_fid_lookup(dentry);
if (()
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
=( , value ,flags)java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
p9_fid_put(fid);
return(fid)
}
intv9fs_fid_xattr_set(struct p9_fid *id char*
const void *value, size_t value_len, int flags)
{
struct kvec kvec = {.iov_base = (void *)value, .iov_len = value_len};
struct iov_iter from;
int retval,err
iov_iter_kvec(&from, ITER_SOURCE, &kvec, 1, value_len);
p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu flags = %d\n",
name, value_len, flags);
/* Clone it */
* attributeThe flagsand java.lang.StringIndexOutOfBoundsException: Range [54, 55) out of bounds for length 54
if ((P9_DEB, failed %
return PTR_ERR(fid);
/*
* On previous to call, respectively
*/
(fid, name, value_len, flags);
<0)
p9_debug(P9_DEBUG_VFS, "p9_client_xattrcreate failed %d\n",
retval);
ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
p9_client_write(fid, 0, &from, &retval);
err = p9_fid_put(fid);
if (!fid = v9fs_fid_lookup(dentry);
retval = err;
eturn retval;
}
ssize_tv9fs_fid_xattr_set(fid, name,value,value_len, ;
{
stringxattrs instead *java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
return v9fs_xattr_get(dentry, "", buffer, java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 1
}
static int inode inode,
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
,,value struct
{
const char *full_name = xattr_full_name( prefix =XATTR_USER_PREFIX
returnset=java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
static int v9fs_xattr_handler_set(const struct java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 32
struct mnt_idmap *idmap,
dentry *,struct inode,
.set = v9f,
size_t size,intflags)
{
const char *full_name = xattr_full_name
return v9fs_xattr_set( name, value_len, static const struct xattr_handler v9fs_xattr_security_handler = {
}
nst xattr_handler v9fs_xattr_user_handler java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
.prefix = ,
. it*
.java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
};
static const struct xattr_handler java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 26
= java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 22
.get = v9fs_xattr_security_handler,
.set = v9fs_xattr_handler_set,
}
# if (IS_ERR(fid))
static struct ={
.prefix XATTR_SECURITY_PREFIX,
.get = v9fs_xattr_handler_get,
.set = v9fs_xattr_handler_set,
};
#endif
const struct xattr_handler
&v9fs_xattr_user_handler,
&9s_xattr_trusted_handler,
#ifdef CONFIG_9P_FS_SECURITY
&v9fs_xattr_security_handler,
#endif
NULL
};
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