Pull vfs xattr cleanups from Al Viro.
* 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
f2fs: xattr simplifications
squashfs: xattr simplifications
9p: xattr simplifications
xattr handlers: Pass handler to operations instead of flags
jffs2: Add missing capability check for listing trusted xattrs
hfsplus: Remove unused xattr handler list operations
ubifs: Remove unused security xattr handler
vfs: Fix the posix_acl_xattr_list return value
vfs: Check attribute names in posix acl xattr handers
vfs_dentry.o \
v9fs.o \
fid.o \
- xattr.o \
- xattr_user.o \
- xattr_trusted.o
+ xattr.o
9p-$(CONFIG_9P_FSCACHE) += cache.o
9p-$(CONFIG_9P_FS_POSIX_ACL) += acl.o
-9p-$(CONFIG_9P_FS_SECURITY) += xattr_security.o
return 0;
}
-static int v9fs_remote_get_acl(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- char *full_name;
-
- switch (type) {
- case ACL_TYPE_ACCESS:
- full_name = POSIX_ACL_XATTR_ACCESS;
- break;
- case ACL_TYPE_DEFAULT:
- full_name = POSIX_ACL_XATTR_DEFAULT;
- break;
- default:
- BUG();
- }
- return v9fs_xattr_get(dentry, full_name, buffer, size);
-}
-
-static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int v9fs_xattr_get_acl(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
struct v9fs_session_info *v9ses;
struct posix_acl *acl;
* We allow set/get/list of acl when access=client is not specified
*/
if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
- return v9fs_remote_get_acl(dentry, name, buffer, size, type);
+ return v9fs_xattr_get(dentry, handler->prefix, buffer, size);
- acl = v9fs_get_cached_acl(d_inode(dentry), type);
+ acl = v9fs_get_cached_acl(d_inode(dentry), handler->flags);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
return error;
}
-static int v9fs_remote_set_acl(struct dentry *dentry, const char *name,
- const void *value, size_t size,
- int flags, int type)
-{
- char *full_name;
-
- switch (type) {
- case ACL_TYPE_ACCESS:
- full_name = POSIX_ACL_XATTR_ACCESS;
- break;
- case ACL_TYPE_DEFAULT:
- full_name = POSIX_ACL_XATTR_DEFAULT;
- break;
- default:
- BUG();
- }
- return v9fs_xattr_set(dentry, full_name, value, size, flags);
-}
-
-
-static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
- const void *value, size_t size,
- int flags, int type)
+static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
int retval;
struct posix_acl *acl;
* xattr value. We leave it to the server to validate
*/
if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
- return v9fs_remote_set_acl(dentry, name,
- value, size, flags, type);
+ return v9fs_xattr_set(dentry, handler->prefix, value, size,
+ flags);
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
} else
acl = NULL;
- switch (type) {
+ switch (handler->flags) {
case ACL_TYPE_ACCESS:
- name = POSIX_ACL_XATTR_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
retval = posix_acl_equiv_mode(acl, &mode);
}
break;
case ACL_TYPE_DEFAULT:
- name = POSIX_ACL_XATTR_DEFAULT;
if (!S_ISDIR(inode->i_mode)) {
retval = acl ? -EINVAL : 0;
goto err_out;
default:
BUG();
}
- retval = v9fs_xattr_set(dentry, name, value, size, flags);
+ retval = v9fs_xattr_set(dentry, handler->prefix, value, size, flags);
if (!retval)
- set_cached_acl(inode, type, acl);
+ set_cached_acl(inode, handler->flags, acl);
err_out:
posix_acl_release(acl);
return retval;
return v9fs_xattr_get(dentry, NULL, buffer, buffer_size);
}
+static int v9fs_xattr_handler_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
+{
+ const char *full_name = xattr_full_name(handler, name);
+
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+ return v9fs_xattr_get(dentry, full_name, buffer, size);
+}
+
+static int v9fs_xattr_handler_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
+{
+ const char *full_name = xattr_full_name(handler, name);
+
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+ return v9fs_xattr_set(dentry, full_name, value, size, flags);
+}
+
+static struct xattr_handler v9fs_xattr_user_handler = {
+ .prefix = XATTR_USER_PREFIX,
+ .get = v9fs_xattr_handler_get,
+ .set = v9fs_xattr_handler_set,
+};
+
+static struct xattr_handler v9fs_xattr_trusted_handler = {
+ .prefix = XATTR_TRUSTED_PREFIX,
+ .get = v9fs_xattr_handler_get,
+ .set = v9fs_xattr_handler_set,
+};
+
+#ifdef CONFIG_9P_FS_SECURITY
+static struct xattr_handler v9fs_xattr_security_handler = {
+ .prefix = XATTR_SECURITY_PREFIX,
+ .get = v9fs_xattr_handler_get,
+ .set = v9fs_xattr_handler_set,
+};
+#endif
+
const struct xattr_handler *v9fs_xattr_handlers[] = {
&v9fs_xattr_user_handler,
&v9fs_xattr_trusted_handler,
#include <net/9p/client.h>
extern const struct xattr_handler *v9fs_xattr_handlers[];
-extern struct xattr_handler v9fs_xattr_user_handler;
-extern struct xattr_handler v9fs_xattr_trusted_handler;
-extern struct xattr_handler v9fs_xattr_security_handler;
extern const struct xattr_handler v9fs_xattr_acl_access_handler;
extern const struct xattr_handler v9fs_xattr_acl_default_handler;
+++ /dev/null
-/*
- * Copyright IBM Corporation, 2010
- * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2.1 of the GNU Lesser General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include "xattr.h"
-
-static int v9fs_xattr_security_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_SECURITY_PREFIX, prefix_len);
- memcpy(full_name+prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_get(dentry, full_name, buffer, size);
- kfree(full_name);
- return retval;
-}
-
-static int v9fs_xattr_security_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_SECURITY_PREFIX, prefix_len);
- memcpy(full_name + prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
- kfree(full_name);
- return retval;
-}
-
-struct xattr_handler v9fs_xattr_security_handler = {
- .prefix = XATTR_SECURITY_PREFIX,
- .get = v9fs_xattr_security_get,
- .set = v9fs_xattr_security_set,
-};
+++ /dev/null
-/*
- * Copyright IBM Corporation, 2010
- * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2.1 of the GNU Lesser General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include "xattr.h"
-
-static int v9fs_xattr_trusted_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_TRUSTED_PREFIX, prefix_len);
- memcpy(full_name+prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_get(dentry, full_name, buffer, size);
- kfree(full_name);
- return retval;
-}
-
-static int v9fs_xattr_trusted_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_TRUSTED_PREFIX, prefix_len);
- memcpy(full_name + prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
- kfree(full_name);
- return retval;
-}
-
-struct xattr_handler v9fs_xattr_trusted_handler = {
- .prefix = XATTR_TRUSTED_PREFIX,
- .get = v9fs_xattr_trusted_get,
- .set = v9fs_xattr_trusted_set,
-};
+++ /dev/null
-/*
- * Copyright IBM Corporation, 2010
- * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2.1 of the GNU Lesser General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include "xattr.h"
-
-static int v9fs_xattr_user_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_USER_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
- memcpy(full_name+prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_get(dentry, full_name, buffer, size);
- kfree(full_name);
- return retval;
-}
-
-static int v9fs_xattr_user_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- int retval;
- char *full_name;
- size_t name_len;
- size_t prefix_len = XATTR_USER_PREFIX_LEN;
-
- if (name == NULL)
- return -EINVAL;
-
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- name_len = strlen(name);
- full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
- if (!full_name)
- return -ENOMEM;
- memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
- memcpy(full_name + prefix_len, name, name_len);
- full_name[prefix_len + name_len] = '\0';
-
- retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
- kfree(full_name);
- return retval;
-}
-
-struct xattr_handler v9fs_xattr_user_handler = {
- .prefix = XATTR_USER_PREFIX,
- .get = v9fs_xattr_user_get,
- .set = v9fs_xattr_user_set,
-};
ext2_xattr_handler(entry->e_name_index);
if (handler) {
- size_t size = handler->list(dentry, buffer, rest,
- entry->e_name,
- entry->e_name_len,
- handler->flags);
+ size_t size = handler->list(handler, dentry, buffer,
+ rest, entry->e_name,
+ entry->e_name_len);
if (buffer) {
if (size > rest) {
error = -ERANGE;
#include "xattr.h"
static size_t
-ext2_xattr_security_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+ext2_xattr_security_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const int prefix_len = XATTR_SECURITY_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
}
static int
-ext2_xattr_security_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+ext2_xattr_security_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
}
static int
-ext2_xattr_security_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+ext2_xattr_security_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
#include "xattr.h"
static size_t
-ext2_xattr_trusted_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+ext2_xattr_trusted_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const int prefix_len = XATTR_TRUSTED_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
}
static int
-ext2_xattr_trusted_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+ext2_xattr_trusted_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
}
static int
-ext2_xattr_trusted_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+ext2_xattr_trusted_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
#include "xattr.h"
static size_t
-ext2_xattr_user_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+ext2_xattr_user_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const size_t prefix_len = XATTR_USER_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
}
static int
-ext2_xattr_user_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+ext2_xattr_user_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
}
static int
-ext2_xattr_user_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+ext2_xattr_user_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
ext4_xattr_handler(entry->e_name_index);
if (handler) {
- size_t size = handler->list(dentry, buffer, rest,
- entry->e_name,
- entry->e_name_len,
- handler->flags);
+ size_t size = handler->list(handler, dentry, buffer,
+ rest, entry->e_name,
+ entry->e_name_len);
if (buffer) {
if (size > rest)
return -ERANGE;
#include "xattr.h"
static size_t
-ext4_xattr_security_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+ext4_xattr_security_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const size_t prefix_len = sizeof(XATTR_SECURITY_PREFIX)-1;
const size_t total_len = prefix_len + name_len + 1;
}
static int
-ext4_xattr_security_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+ext4_xattr_security_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
}
static int
-ext4_xattr_security_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+ext4_xattr_security_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
#include "xattr.h"
static size_t
-ext4_xattr_trusted_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+ext4_xattr_trusted_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
}
static int
-ext4_xattr_trusted_get(struct dentry *dentry, const char *name, void *buffer,
- size_t size, int type)
+ext4_xattr_trusted_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, void *buffer,
+ size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
}
static int
-ext4_xattr_trusted_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+ext4_xattr_trusted_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
#include "xattr.h"
static size_t
-ext4_xattr_user_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+ext4_xattr_user_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const size_t prefix_len = XATTR_USER_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
}
static int
-ext4_xattr_user_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+ext4_xattr_user_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
}
static int
-ext4_xattr_user_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+ext4_xattr_user_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
#include "f2fs.h"
#include "xattr.h"
-static size_t f2fs_xattr_generic_list(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t len, int type)
+static size_t f2fs_xattr_generic_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t len)
{
struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb);
- int total_len, prefix_len = 0;
- const char *prefix = NULL;
+ int total_len, prefix_len;
- switch (type) {
+ switch (handler->flags) {
case F2FS_XATTR_INDEX_USER:
if (!test_opt(sbi, XATTR_USER))
return -EOPNOTSUPP;
- prefix = XATTR_USER_PREFIX;
- prefix_len = XATTR_USER_PREFIX_LEN;
break;
case F2FS_XATTR_INDEX_TRUSTED:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- prefix = XATTR_TRUSTED_PREFIX;
- prefix_len = XATTR_TRUSTED_PREFIX_LEN;
break;
case F2FS_XATTR_INDEX_SECURITY:
- prefix = XATTR_SECURITY_PREFIX;
- prefix_len = XATTR_SECURITY_PREFIX_LEN;
break;
default:
return -EINVAL;
}
+ prefix_len = strlen(handler->prefix);
total_len = prefix_len + len + 1;
if (list && total_len <= list_size) {
- memcpy(list, prefix, prefix_len);
+ memcpy(list, handler->prefix, prefix_len);
memcpy(list + prefix_len, name, len);
list[prefix_len + len] = '\0';
}
return total_len;
}
-static int f2fs_xattr_generic_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int f2fs_xattr_generic_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, void *buffer,
+ size_t size)
{
struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb);
- switch (type) {
+ switch (handler->flags) {
case F2FS_XATTR_INDEX_USER:
if (!test_opt(sbi, XATTR_USER))
return -EOPNOTSUPP;
}
if (strcmp(name, "") == 0)
return -EINVAL;
- return f2fs_getxattr(d_inode(dentry), type, name, buffer, size, NULL);
+ return f2fs_getxattr(d_inode(dentry), handler->flags, name,
+ buffer, size, NULL);
}
-static int f2fs_xattr_generic_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static int f2fs_xattr_generic_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, const void *value,
+ size_t size, int flags)
{
struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb);
- switch (type) {
+ switch (handler->flags) {
case F2FS_XATTR_INDEX_USER:
if (!test_opt(sbi, XATTR_USER))
return -EOPNOTSUPP;
if (strcmp(name, "") == 0)
return -EINVAL;
- return f2fs_setxattr(d_inode(dentry), type, name,
+ return f2fs_setxattr(d_inode(dentry), handler->flags, name,
value, size, NULL, flags);
}
-static size_t f2fs_xattr_advise_list(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t len, int type)
+static size_t f2fs_xattr_advise_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t len)
{
const char *xname = F2FS_SYSTEM_ADVISE_PREFIX;
size_t size;
- if (type != F2FS_XATTR_INDEX_ADVISE)
- return 0;
-
size = strlen(xname) + 1;
if (list && size <= list_size)
memcpy(list, xname, size);
return size;
}
-static int f2fs_xattr_advise_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int f2fs_xattr_advise_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, void *buffer,
+ size_t size)
{
struct inode *inode = d_inode(dentry);
return sizeof(char);
}
-static int f2fs_xattr_advise_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static int f2fs_xattr_advise_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, const void *value,
+ size_t size, int flags)
{
struct inode *inode = d_inode(dentry);
if (!handler)
continue;
- size = handler->list(dentry, buffer, rest, entry->e_name,
- entry->e_name_len, handler->flags);
+ size = handler->list(handler, dentry, buffer, rest,
+ entry->e_name, entry->e_name_len);
if (buffer && size > rest) {
error = -ERANGE;
goto cleanup;
*
* Returns: actual size of data on success, -errno on error
*/
-static int gfs2_xattr_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int gfs2_xattr_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
struct gfs2_inode *ip = GFS2_I(d_inode(dentry));
struct gfs2_ea_location el;
+ int type = handler->flags;
int error;
if (!ip->i_eattr)
return error;
}
-static int gfs2_xattr_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static int gfs2_xattr_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
return __gfs2_xattr_set(d_inode(dentry), name, value,
- size, flags, type);
+ size, flags, handler->flags);
}
return err;
}
-static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int hfsplus_osx_getxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (!strcmp(name, ""))
return -EINVAL;
return __hfsplus_getxattr(d_inode(dentry), name, buffer, size);
}
-static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
- const void *buffer, size_t size, int flags, int type)
+static int hfsplus_osx_setxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags)
{
if (!strcmp(name, ""))
return -EINVAL;
return __hfsplus_setxattr(d_inode(dentry), name, buffer, size, flags);
}
-static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
-{
- /*
- * This method is not used.
- * It is used hfsplus_listxattr() instead of generic_listxattr().
- */
- return -EOPNOTSUPP;
-}
-
const struct xattr_handler hfsplus_xattr_osx_handler = {
.prefix = XATTR_MAC_OSX_PREFIX,
- .list = hfsplus_osx_listxattr,
.get = hfsplus_osx_getxattr,
.set = hfsplus_osx_setxattr,
};
#include "xattr.h"
#include "acl.h"
-static int hfsplus_security_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int hfsplus_security_getxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
return hfsplus_getxattr(dentry, name, buffer, size,
XATTR_SECURITY_PREFIX,
XATTR_SECURITY_PREFIX_LEN);
}
-static int hfsplus_security_setxattr(struct dentry *dentry, const char *name,
- const void *buffer, size_t size, int flags, int type)
+static int hfsplus_security_setxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags)
{
return hfsplus_setxattr(dentry, name, buffer, size, flags,
XATTR_SECURITY_PREFIX,
XATTR_SECURITY_PREFIX_LEN);
}
-static size_t hfsplus_security_listxattr(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
-{
- /*
- * This method is not used.
- * It is used hfsplus_listxattr() instead of generic_listxattr().
- */
- return -EOPNOTSUPP;
-}
-
static int hfsplus_initxattrs(struct inode *inode,
const struct xattr *xattr_array,
void *fs_info)
const struct xattr_handler hfsplus_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
- .list = hfsplus_security_listxattr,
.get = hfsplus_security_getxattr,
.set = hfsplus_security_setxattr,
};
#include "hfsplus_fs.h"
#include "xattr.h"
-static int hfsplus_trusted_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int hfsplus_trusted_getxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
return hfsplus_getxattr(dentry, name, buffer, size,
XATTR_TRUSTED_PREFIX,
XATTR_TRUSTED_PREFIX_LEN);
}
-static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name,
- const void *buffer, size_t size, int flags, int type)
+static int hfsplus_trusted_setxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags)
{
return hfsplus_setxattr(dentry, name, buffer, size, flags,
XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN);
}
-static size_t hfsplus_trusted_listxattr(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
-{
- /*
- * This method is not used.
- * It is used hfsplus_listxattr() instead of generic_listxattr().
- */
- return -EOPNOTSUPP;
-}
-
const struct xattr_handler hfsplus_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
- .list = hfsplus_trusted_listxattr,
.get = hfsplus_trusted_getxattr,
.set = hfsplus_trusted_setxattr,
};
#include "hfsplus_fs.h"
#include "xattr.h"
-static int hfsplus_user_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int hfsplus_user_getxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
return hfsplus_getxattr(dentry, name, buffer, size,
XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
}
-static int hfsplus_user_setxattr(struct dentry *dentry, const char *name,
- const void *buffer, size_t size, int flags, int type)
+static int hfsplus_user_setxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags)
{
return hfsplus_setxattr(dentry, name, buffer, size, flags,
XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
}
-static size_t hfsplus_user_listxattr(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
-{
- /*
- * This method is not used.
- * It is used hfsplus_listxattr() instead of generic_listxattr().
- */
- return -EOPNOTSUPP;
-}
-
const struct xattr_handler hfsplus_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
- .list = hfsplus_user_listxattr,
.get = hfsplus_user_getxattr,
.set = hfsplus_user_setxattr,
};
}
/* ---- XATTR Handler for "security.*" ----------------- */
-static int jffs2_security_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int jffs2_security_getxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (!strcmp(name, ""))
return -EINVAL;
name, buffer, size);
}
-static int jffs2_security_setxattr(struct dentry *dentry, const char *name,
- const void *buffer, size_t size, int flags, int type)
+static int jffs2_security_setxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags)
{
if (!strcmp(name, ""))
return -EINVAL;
name, buffer, size, flags);
}
-static size_t jffs2_security_listxattr(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
+static size_t jffs2_security_listxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
+ size_t list_size, const char *name,
+ size_t name_len)
{
size_t retlen = XATTR_SECURITY_PREFIX_LEN + name_len + 1;
if (!xhandle)
continue;
if (buffer) {
- rc = xhandle->list(dentry, buffer+len, size-len,
- xd->xname, xd->name_len, xd->flags);
+ rc = xhandle->list(xhandle, dentry, buffer + len,
+ size - len, xd->xname,
+ xd->name_len);
} else {
- rc = xhandle->list(dentry, NULL, 0, xd->xname,
- xd->name_len, xd->flags);
+ rc = xhandle->list(xhandle, dentry, NULL, 0,
+ xd->xname, xd->name_len);
}
if (rc < 0)
goto out;
#include <linux/mtd/mtd.h>
#include "nodelist.h"
-static int jffs2_trusted_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int jffs2_trusted_getxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (!strcmp(name, ""))
return -EINVAL;
name, buffer, size);
}
-static int jffs2_trusted_setxattr(struct dentry *dentry, const char *name,
- const void *buffer, size_t size, int flags, int type)
+static int jffs2_trusted_setxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags)
{
if (!strcmp(name, ""))
return -EINVAL;
name, buffer, size, flags);
}
-static size_t jffs2_trusted_listxattr(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
+static size_t jffs2_trusted_listxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
+ size_t list_size, const char *name,
+ size_t name_len)
{
size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1;
+ if (!capable(CAP_SYS_ADMIN))
+ return 0;
+
if (list && retlen<=list_size) {
strcpy(list, XATTR_TRUSTED_PREFIX);
strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name);
#include <linux/mtd/mtd.h>
#include "nodelist.h"
-static int jffs2_user_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int jffs2_user_getxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (!strcmp(name, ""))
return -EINVAL;
name, buffer, size);
}
-static int jffs2_user_setxattr(struct dentry *dentry, const char *name,
- const void *buffer, size_t size, int flags, int type)
+static int jffs2_user_setxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags)
{
if (!strcmp(name, ""))
return -EINVAL;
name, buffer, size, flags);
}
-static size_t jffs2_user_listxattr(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
+static size_t jffs2_user_listxattr(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
+ size_t list_size, const char *name,
+ size_t name_len)
{
size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1;
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
-static int nfs4_xattr_set_nfs4_acl(struct dentry *dentry, const char *key,
+static int nfs4_xattr_set_nfs4_acl(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *key,
const void *buf, size_t buflen,
- int flags, int type)
+ int flags)
{
if (strcmp(key, "") != 0)
return -EINVAL;
return nfs4_proc_set_acl(d_inode(dentry), buf, buflen);
}
-static int nfs4_xattr_get_nfs4_acl(struct dentry *dentry, const char *key,
- void *buf, size_t buflen, int type)
+static int nfs4_xattr_get_nfs4_acl(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *key,
+ void *buf, size_t buflen)
{
if (strcmp(key, "") != 0)
return -EINVAL;
return nfs4_proc_get_acl(d_inode(dentry), buf, buflen);
}
-static size_t nfs4_xattr_list_nfs4_acl(struct dentry *dentry, char *list,
+static size_t nfs4_xattr_list_nfs4_acl(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
size_t list_len, const char *name,
- size_t name_len, int type)
+ size_t name_len)
{
size_t len = sizeof(XATTR_NAME_NFSV4_ACL);
return server->caps & NFS_CAP_SECURITY_LABEL;
}
-static int nfs4_xattr_set_nfs4_label(struct dentry *dentry, const char *key,
- const void *buf, size_t buflen,
- int flags, int type)
+static int nfs4_xattr_set_nfs4_label(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *key,
+ const void *buf, size_t buflen,
+ int flags)
{
if (security_ismaclabel(key))
return nfs4_set_security_label(dentry, buf, buflen);
return -EOPNOTSUPP;
}
-static int nfs4_xattr_get_nfs4_label(struct dentry *dentry, const char *key,
- void *buf, size_t buflen, int type)
+static int nfs4_xattr_get_nfs4_label(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *key,
+ void *buf, size_t buflen)
{
if (security_ismaclabel(key))
return nfs4_get_security_label(d_inode(dentry), buf, buflen);
return -EOPNOTSUPP;
}
-static size_t nfs4_xattr_list_nfs4_label(struct dentry *dentry, char *list,
- size_t list_len, const char *name,
- size_t name_len, int type)
+static size_t nfs4_xattr_list_nfs4_label(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
+ size_t list_len, const char *name,
+ size_t name_len)
{
size_t len = 0;
/*
* 'security' attributes support
*/
-static size_t ocfs2_xattr_security_list(struct dentry *dentry, char *list,
+static size_t ocfs2_xattr_security_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
size_t list_size, const char *name,
- size_t name_len, int type)
+ size_t name_len)
{
const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
return total_len;
}
-static int ocfs2_xattr_security_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int ocfs2_xattr_security_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
name, buffer, size);
}
-static int ocfs2_xattr_security_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static int ocfs2_xattr_security_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
/*
* 'trusted' attributes support
*/
-static size_t ocfs2_xattr_trusted_list(struct dentry *dentry, char *list,
+static size_t ocfs2_xattr_trusted_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
size_t list_size, const char *name,
- size_t name_len, int type)
+ size_t name_len)
{
const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
return total_len;
}
-static int ocfs2_xattr_trusted_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int ocfs2_xattr_trusted_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
name, buffer, size);
}
-static int ocfs2_xattr_trusted_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static int ocfs2_xattr_trusted_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
/*
* 'user' attributes support
*/
-static size_t ocfs2_xattr_user_list(struct dentry *dentry, char *list,
+static size_t ocfs2_xattr_user_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list,
size_t list_size, const char *name,
- size_t name_len, int type)
+ size_t name_len)
{
const size_t prefix_len = XATTR_USER_PREFIX_LEN;
const size_t total_len = prefix_len + name_len + 1;
return total_len;
}
-static int ocfs2_xattr_user_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int ocfs2_xattr_user_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *buffer, size_t size)
{
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
buffer, size);
}
-static int ocfs2_xattr_user_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static int ocfs2_xattr_user_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
EXPORT_SYMBOL (posix_acl_to_xattr);
static int
-posix_acl_xattr_get(struct dentry *dentry, const char *name,
- void *value, size_t size, int type)
+posix_acl_xattr_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ void *value, size_t size)
{
struct posix_acl *acl;
int error;
+ if (strcmp(name, "") != 0)
+ return -EINVAL;
if (!IS_POSIXACL(d_backing_inode(dentry)))
return -EOPNOTSUPP;
if (d_is_symlink(dentry))
return -EOPNOTSUPP;
- acl = get_acl(d_backing_inode(dentry), type);
+ acl = get_acl(d_backing_inode(dentry), handler->flags);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
}
static int
-posix_acl_xattr_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+posix_acl_xattr_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
{
struct inode *inode = d_backing_inode(dentry);
struct posix_acl *acl = NULL;
int ret;
+ if (strcmp(name, "") != 0)
+ return -EINVAL;
if (!IS_POSIXACL(inode))
return -EOPNOTSUPP;
if (!inode->i_op->set_acl)
return -EOPNOTSUPP;
- if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
+ if (handler->flags == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
return value ? -EACCES : 0;
if (!inode_owner_or_capable(inode))
return -EPERM;
}
}
- ret = inode->i_op->set_acl(inode, acl, type);
+ ret = inode->i_op->set_acl(inode, acl, handler->flags);
out:
posix_acl_release(acl);
return ret;
}
static size_t
-posix_acl_xattr_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+posix_acl_xattr_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
- const char *xname;
+ const char *xname = handler->prefix;
size_t size;
if (!IS_POSIXACL(d_backing_inode(dentry)))
- return -EOPNOTSUPP;
- if (d_is_symlink(dentry))
- return -EOPNOTSUPP;
-
- if (type == ACL_TYPE_ACCESS)
- xname = POSIX_ACL_XATTR_ACCESS;
- else
- xname = POSIX_ACL_XATTR_DEFAULT;
+ return 0;
size = strlen(xname) + 1;
if (list && size <= list_size)
if (!handler || get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
return -EOPNOTSUPP;
- return handler->get(dentry, name, buffer, size, handler->flags);
+ return handler->get(handler, dentry, name, buffer, size);
}
/*
if (!handler || get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
return -EOPNOTSUPP;
- return handler->set(dentry, name, value, size, flags, handler->flags);
+ return handler->set(handler, dentry, name, value, size, flags);
}
/*
if (!handler || get_inode_sd_version(d_inode(dentry)) == STAT_DATA_V1)
return -EOPNOTSUPP;
- return handler->set(dentry, name, NULL, 0, XATTR_REPLACE, handler->flags);
+ return handler->set(handler, dentry, name, NULL, 0, XATTR_REPLACE);
}
struct listxattr_buf {
if (!handler) /* Unsupported xattr name */
return 0;
if (b->buf) {
- size = handler->list(b->dentry, b->buf + b->pos,
- b->size, name, namelen,
- handler->flags);
+ size = handler->list(handler, b->dentry,
+ b->buf + b->pos, b->size, name,
+ namelen);
if (size > b->size)
return -ERANGE;
} else {
- size = handler->list(b->dentry, NULL, 0, name,
- namelen, handler->flags);
+ size = handler->list(handler, b->dentry,
+ NULL, 0, name, namelen);
}
b->pos += size;
#include <linux/uaccess.h>
static int
-security_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
- int handler_flags)
+security_get(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, void *buffer, size_t size)
{
if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
return -EINVAL;
}
static int
-security_set(struct dentry *dentry, const char *name, const void *buffer,
- size_t size, int flags, int handler_flags)
+security_set(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, const void *buffer, size_t size, int flags)
{
if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX))
return -EINVAL;
return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
}
-static size_t security_list(struct dentry *dentry, char *list, size_t list_len,
- const char *name, size_t namelen, int handler_flags)
+static size_t security_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_len,
+ const char *name, size_t namelen)
{
const size_t len = namelen + 1;
#include <linux/uaccess.h>
static int
-trusted_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
- int handler_flags)
+trusted_get(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, void *buffer, size_t size)
{
if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
return -EINVAL;
}
static int
-trusted_set(struct dentry *dentry, const char *name, const void *buffer,
- size_t size, int flags, int handler_flags)
+trusted_set(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, const void *buffer, size_t size, int flags)
{
if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX))
return -EINVAL;
return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
}
-static size_t trusted_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int handler_flags)
+static size_t trusted_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const size_t len = name_len + 1;
#include <linux/uaccess.h>
static int
-user_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
- int handler_flags)
+user_get(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, void *buffer, size_t size)
{
if (strlen(name) < sizeof(XATTR_USER_PREFIX))
}
static int
-user_set(struct dentry *dentry, const char *name, const void *buffer,
- size_t size, int flags, int handler_flags)
+user_set(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, const void *buffer, size_t size, int flags)
{
if (strlen(name) < sizeof(XATTR_USER_PREFIX))
return -EINVAL;
return reiserfs_xattr_set(d_inode(dentry), name, buffer, size, flags);
}
-static size_t user_list(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int handler_flags)
+static size_t user_list(const struct xattr_handler *handler,
+ struct dentry *dentry, char *list, size_t list_size,
+ const char *name, size_t name_len)
{
const size_t len = name_len + 1;
name_size = le16_to_cpu(entry.size);
handler = squashfs_xattr_handler(le16_to_cpu(entry.type));
if (handler)
- prefix_size = handler->list(d, buffer, rest, NULL,
- name_size, handler->flags);
+ prefix_size = handler->list(handler, d, buffer, rest,
+ NULL, name_size);
if (prefix_size) {
if (buffer) {
if (prefix_size + name_size + 1 > rest) {
}
-/*
- * User namespace support
- */
-static size_t squashfs_user_list(struct dentry *d, char *list, size_t list_size,
- const char *name, size_t name_len, int type)
+static size_t squashfs_xattr_handler_list(const struct xattr_handler *handler,
+ struct dentry *d, char *list,
+ size_t list_size, const char *name,
+ size_t name_len)
{
- if (list && XATTR_USER_PREFIX_LEN <= list_size)
- memcpy(list, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
- return XATTR_USER_PREFIX_LEN;
+ int len = strlen(handler->prefix);
+
+ if (list && len <= list_size)
+ memcpy(list, handler->prefix, len);
+ return len;
}
-static int squashfs_user_get(struct dentry *d, const char *name, void *buffer,
- size_t size, int type)
+static int squashfs_xattr_handler_get(const struct xattr_handler *handler,
+ struct dentry *d, const char *name,
+ void *buffer, size_t size)
{
if (name[0] == '\0')
return -EINVAL;
- return squashfs_xattr_get(d_inode(d), SQUASHFS_XATTR_USER, name,
+ return squashfs_xattr_get(d_inode(d), handler->flags, name,
buffer, size);
}
+/*
+ * User namespace support
+ */
static const struct xattr_handler squashfs_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
- .list = squashfs_user_list,
- .get = squashfs_user_get
+ .flags = SQUASHFS_XATTR_USER,
+ .list = squashfs_xattr_handler_list,
+ .get = squashfs_xattr_handler_get
};
/*
* Trusted namespace support
*/
-static size_t squashfs_trusted_list(struct dentry *d, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
+static size_t squashfs_trusted_xattr_handler_list(const struct xattr_handler *handler,
+ struct dentry *d, char *list,
+ size_t list_size, const char *name,
+ size_t name_len)
{
if (!capable(CAP_SYS_ADMIN))
return 0;
-
- if (list && XATTR_TRUSTED_PREFIX_LEN <= list_size)
- memcpy(list, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN);
- return XATTR_TRUSTED_PREFIX_LEN;
-}
-
-static int squashfs_trusted_get(struct dentry *d, const char *name,
- void *buffer, size_t size, int type)
-{
- if (name[0] == '\0')
- return -EINVAL;
-
- return squashfs_xattr_get(d_inode(d), SQUASHFS_XATTR_TRUSTED, name,
- buffer, size);
+ return squashfs_xattr_handler_list(handler, d, list, list_size, name,
+ name_len);
}
static const struct xattr_handler squashfs_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
- .list = squashfs_trusted_list,
- .get = squashfs_trusted_get
+ .flags = SQUASHFS_XATTR_TRUSTED,
+ .list = squashfs_trusted_xattr_handler_list,
+ .get = squashfs_xattr_handler_get
};
/*
* Security namespace support
*/
-static size_t squashfs_security_list(struct dentry *d, char *list,
- size_t list_size, const char *name, size_t name_len, int type)
-{
- if (list && XATTR_SECURITY_PREFIX_LEN <= list_size)
- memcpy(list, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN);
- return XATTR_SECURITY_PREFIX_LEN;
-}
-
-static int squashfs_security_get(struct dentry *d, const char *name,
- void *buffer, size_t size, int type)
-{
- if (name[0] == '\0')
- return -EINVAL;
-
- return squashfs_xattr_get(d_inode(d), SQUASHFS_XATTR_SECURITY, name,
- buffer, size);
-}
-
static const struct xattr_handler squashfs_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
- .list = squashfs_security_list,
- .get = squashfs_security_get
+ .flags = SQUASHFS_XATTR_SECURITY,
+ .list = squashfs_xattr_handler_list,
+ .get = squashfs_xattr_handler_get
};
static const struct xattr_handler *squashfs_xattr_handler(int type)
if (c->max_inode_sz > MAX_LFS_FILESIZE)
sb->s_maxbytes = c->max_inode_sz = MAX_LFS_FILESIZE;
sb->s_op = &ubifs_super_operations;
- sb->s_xattr = ubifs_xattr_handlers;
mutex_lock(&c->umount_mutex);
err = mount_ubifs(c);
extern atomic_long_t ubifs_clean_zn_cnt;
extern struct kmem_cache *ubifs_inode_slab;
extern const struct super_operations ubifs_super_operations;
-extern const struct xattr_handler *ubifs_xattr_handlers[];
extern const struct address_space_operations ubifs_file_address_operations;
extern const struct file_operations ubifs_file_operations;
extern const struct inode_operations ubifs_file_inode_operations;
return err;
}
-static size_t security_listxattr(struct dentry *d, char *list, size_t list_size,
- const char *name, size_t name_len, int flags)
-{
- const int prefix_len = XATTR_SECURITY_PREFIX_LEN;
- const size_t total_len = prefix_len + name_len + 1;
-
- if (list && total_len <= list_size) {
- memcpy(list, XATTR_SECURITY_PREFIX, prefix_len);
- memcpy(list + prefix_len, name, name_len);
- list[prefix_len + name_len] = '\0';
- }
-
- return total_len;
-}
-
-static int security_getxattr(struct dentry *d, const char *name, void *buffer,
- size_t size, int flags)
-{
- return ubifs_getxattr(d, name, buffer, size);
-}
-
-static int security_setxattr(struct dentry *d, const char *name,
- const void *value, size_t size, int flags,
- int handler_flags)
-{
- return ubifs_setxattr(d, name, value, size, flags);
-}
-
-static const struct xattr_handler ubifs_xattr_security_handler = {
- .prefix = XATTR_SECURITY_PREFIX,
- .list = security_listxattr,
- .get = security_getxattr,
- .set = security_setxattr,
-};
-
-const struct xattr_handler *ubifs_xattr_handlers[] = {
- &ubifs_xattr_security_handler,
- NULL,
-};
-
static int init_xattrs(struct inode *inode, const struct xattr *xattr_array,
void *fs_info)
{
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
- return handler->get(dentry, name, buffer, size, handler->flags);
+ return handler->get(handler, dentry, name, buffer, size);
}
/*
if (!buffer) {
for_each_xattr_handler(handlers, handler) {
- size += handler->list(dentry, NULL, 0, NULL, 0,
- handler->flags);
+ size += handler->list(handler, dentry, NULL, 0,
+ NULL, 0);
}
} else {
char *buf = buffer;
for_each_xattr_handler(handlers, handler) {
- size = handler->list(dentry, buf, buffer_size,
- NULL, 0, handler->flags);
+ size = handler->list(handler, dentry, buf, buffer_size,
+ NULL, 0);
if (size > buffer_size)
return -ERANGE;
buf += size;
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
- return handler->set(dentry, name, value, size, flags, handler->flags);
+ return handler->set(handler, dentry, name, value, size, flags);
}
/*
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
- return handler->set(dentry, name, NULL, 0,
- XATTR_REPLACE, handler->flags);
+ return handler->set(handler, dentry, name, NULL, 0, XATTR_REPLACE);
}
EXPORT_SYMBOL(generic_getxattr);
EXPORT_SYMBOL(generic_setxattr);
EXPORT_SYMBOL(generic_removexattr);
+/**
+ * xattr_full_name - Compute full attribute name from suffix
+ *
+ * @handler: handler of the xattr_handler operation
+ * @name: name passed to the xattr_handler operation
+ *
+ * The get and set xattr handler operations are called with the remainder of
+ * the attribute name after skipping the handler's prefix: for example, "foo"
+ * is passed to the get operation of a handler with prefix "user." to get
+ * attribute "user.foo". The full name is still "there" in the name though.
+ *
+ * Note: the list xattr handler operation when called from the vfs is passed a
+ * NULL name; some file systems use this operation internally, with varying
+ * semantics.
+ */
+const char *xattr_full_name(const struct xattr_handler *handler,
+ const char *name)
+{
+ size_t prefix_len = strlen(handler->prefix);
+
+ return name - prefix_len;
+}
+EXPORT_SYMBOL(xattr_full_name);
+
/*
* Allocate new xattr and copy in the value; but leave the name to callers.
*/
static int
-xfs_xattr_get(struct dentry *dentry, const char *name,
- void *value, size_t size, int xflags)
+xfs_xattr_get(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, void *value, size_t size)
{
+ int xflags = handler->flags;
struct xfs_inode *ip = XFS_I(d_inode(dentry));
int error, asize = size;
}
static int
-xfs_xattr_set(struct dentry *dentry, const char *name, const void *value,
- size_t size, int flags, int xflags)
+xfs_xattr_set(const struct xattr_handler *handler, struct dentry *dentry,
+ const char *name, const void *value, size_t size, int flags)
{
+ int xflags = handler->flags;
struct xfs_inode *ip = XFS_I(d_inode(dentry));
int error;
struct xattr_handler {
const char *prefix;
- int flags; /* fs private flags passed back to the handlers */
- size_t (*list)(struct dentry *dentry, char *list, size_t list_size,
- const char *name, size_t name_len, int handler_flags);
- int (*get)(struct dentry *dentry, const char *name, void *buffer,
- size_t size, int handler_flags);
- int (*set)(struct dentry *dentry, const char *name, const void *buffer,
- size_t size, int flags, int handler_flags);
+ int flags; /* fs private flags */
+ size_t (*list)(const struct xattr_handler *, struct dentry *dentry,
+ char *list, size_t list_size, const char *name,
+ size_t name_len);
+ int (*get)(const struct xattr_handler *, struct dentry *dentry,
+ const char *name, void *buffer, size_t size);
+ int (*set)(const struct xattr_handler *, struct dentry *dentry,
+ const char *name, const void *buffer, size_t size,
+ int flags);
};
+const char *xattr_full_name(const struct xattr_handler *, const char *);
+
struct xattr {
const char *name;
void *value;
projects / linux-beck.git / commitdiff