From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
Subject: [PATCH v4 5/5] hfsplus: integrate of implemented ACLs support into driver
This patch integrates of implemented ACLs support into hfsplus driver.
Signed-off-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
CC: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
CC: "J. Bruce Fields" <bfields@xxxxxxxxxx>
CC: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
CC: Christoph Hellwig <hch@xxxxxxxxxxxxx>
CC: Hin-Tak Leung <htl10@xxxxxxxxxxxxxxxxxxxxx>
---
fs/hfsplus/Makefile | 2 +-
fs/hfsplus/dir.c | 2 ++
fs/hfsplus/inode.c | 9 +++++++++
fs/hfsplus/xattr.c | 20 ++++++++++++++------
fs/hfsplus/xattr.h | 32 +++++++++++++-------------------
fs/hfsplus/xattr_security.c | 13 +++++++++++++
6 files changed, 52 insertions(+), 26 deletions(-)
diff --git a/fs/hfsplus/Makefile b/fs/hfsplus/Makefile
index 09d278b..1fb5e7c 100644
--- a/fs/hfsplus/Makefile
+++ b/fs/hfsplus/Makefile
@@ -6,4 +6,4 @@ obj-$(CONFIG_HFSPLUS_FS) += hfsplus.o
hfsplus-objs := super.o options.o inode.o ioctl.o extents.o catalog.o dir.o btree.o \
bnode.o brec.o bfind.o tables.o unicode.o wrapper.o bitmap.o part_tbl.o \
- attributes.o xattr.o xattr_user.o xattr_security.o xattr_trusted.o
+ attributes.o xattr.o xattr_user.o xattr_security.o xattr_trusted.o acl.o
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index a37ac93..372f6de 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -16,6 +16,7 @@
#include "hfsplus_fs.h"
#include "hfsplus_raw.h"
#include "xattr.h"
+#include "acl.h"
static inline void hfsplus_instantiate(struct dentry *dentry,
struct inode *inode, u32 cnid)
@@ -533,6 +534,7 @@ const struct inode_operations hfsplus_dir_inode_operations = {
.getxattr = generic_getxattr,
.listxattr = hfsplus_listxattr,
.removexattr = hfsplus_removexattr,
+ .get_acl = hfsplus_get_acl,
};
const struct file_operations hfsplus_dir_operations = {
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index f833d35..0171348 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -19,6 +19,7 @@
#include "hfsplus_fs.h"
#include "hfsplus_raw.h"
#include "xattr.h"
+#include "acl.h"
static int hfsplus_readpage(struct file *file, struct page *page)
{
@@ -316,6 +317,13 @@ static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
setattr_copy(inode, attr);
mark_inode_dirty(inode);
+
+ if (attr->ia_valid & ATTR_MODE) {
+ error = hfsplus_acl_chmod(inode);
+ if (unlikely(error))
+ return error;
+ }
+
return 0;
}
@@ -383,6 +391,7 @@ static const struct inode_operations hfsplus_file_inode_operations = {
.getxattr = generic_getxattr,
.listxattr = hfsplus_listxattr,
.removexattr = hfsplus_removexattr,
+ .get_acl = hfsplus_get_acl,
};
static const struct file_operations hfsplus_file_operations = {
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index f663461..f20e255 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -8,11 +8,14 @@
#include "hfsplus_fs.h"
#include "xattr.h"
+#include "acl.h"
const struct xattr_handler *hfsplus_xattr_handlers[] = {
&hfsplus_xattr_osx_handler,
&hfsplus_xattr_user_handler,
&hfsplus_xattr_trusted_handler,
+ &hfsplus_xattr_acl_access_handler,
+ &hfsplus_xattr_acl_default_handler,
&hfsplus_xattr_security_handler,
NULL
};
@@ -49,8 +52,15 @@ static inline int is_known_namespace(const char *name)
static int can_set_xattr(struct inode *inode, const char *name,
const void *value, size_t value_len)
{
+ /*
+ * ACLs handler makes conversion from "system.posix_acl_access"
+ * and "system.posix_acl_default" into "com.apple.system.Security".
+ */
if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
- return -EOPNOTSUPP; /* TODO: implement ACL support */
+ return -EOPNOTSUPP;
+ else if (!strncmp(name, HFSPLUS_XATTR_ACL_NAME,
+ sizeof(HFSPLUS_XATTR_ACL_NAME)))
+ return 0;
if (!strncmp(name, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN)) {
/*
@@ -253,11 +263,10 @@ static int copy_name(char *buffer, const char *xattr_name, int name_len)
return len;
}
-static ssize_t hfsplus_getxattr_finder_info(struct dentry *dentry,
+static ssize_t hfsplus_getxattr_finder_info(struct inode *inode,
void *value, size_t size)
{
ssize_t res = 0;
- struct inode *inode = dentry->d_inode;
struct hfs_find_data fd;
u16 entry_type;
u16 folder_rec_len = sizeof(struct DInfo) + sizeof(struct DXInfo);
@@ -304,10 +313,9 @@ end_getxattr_finder_info:
return res;
}
-ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
+ssize_t __hfsplus_getxattr(struct inode *inode, const char *name,
void *value, size_t size)
{
- struct inode *inode = dentry->d_inode;
struct hfs_find_data fd;
hfsplus_attr_entry *entry;
__be32 xattr_record_type;
@@ -333,7 +341,7 @@ ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
}
if (!strcmp_xattr_finder_info(name))
- return hfsplus_getxattr_finder_info(dentry, value, size);
+ return hfsplus_getxattr_finder_info(inode, value, size);
if (!HFSPLUS_SB(inode->i_sb)->attr_tree)
return -EOPNOTSUPP;
diff --git a/fs/hfsplus/xattr.h b/fs/hfsplus/xattr.h
index 847b695..940dd7a 100644
--- a/fs/hfsplus/xattr.h
+++ b/fs/hfsplus/xattr.h
@@ -14,8 +14,8 @@
extern const struct xattr_handler hfsplus_xattr_osx_handler;
extern const struct xattr_handler hfsplus_xattr_user_handler;
extern const struct xattr_handler hfsplus_xattr_trusted_handler;
-/*extern const struct xattr_handler hfsplus_xattr_acl_access_handler;*/
-/*extern const struct xattr_handler hfsplus_xattr_acl_default_handler;*/
+extern const struct xattr_handler hfsplus_xattr_acl_access_handler;
+extern const struct xattr_handler hfsplus_xattr_acl_default_handler;
extern const struct xattr_handler hfsplus_xattr_security_handler;
extern const struct xattr_handler *hfsplus_xattr_handlers[];
@@ -29,9 +29,17 @@ static inline int hfsplus_setxattr(struct dentry *dentry, const char *name,
return __hfsplus_setxattr(dentry->d_inode, name, value, size, flags);
}
-ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
+ssize_t __hfsplus_getxattr(struct inode *inode, const char *name,
void *value, size_t size);
+static inline ssize_t hfsplus_getxattr(struct dentry *dentry,
+ const char *name,
+ void *value,
+ size_t size)
+{
+ return __hfsplus_getxattr(dentry->d_inode, name, value, size);
+}
+
ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size);
int hfsplus_removexattr(struct dentry *dentry, const char *name);
@@ -39,22 +47,8 @@ int hfsplus_removexattr(struct dentry *dentry, const char *name);
int hfsplus_init_security(struct inode *inode, struct inode *dir,
const struct qstr *qstr);
-static inline int hfsplus_init_acl(struct inode *inode, struct inode *dir)
-{
- /*TODO: implement*/
- return 0;
-}
-
-static inline int hfsplus_init_inode_security(struct inode *inode,
+int hfsplus_init_inode_security(struct inode *inode,
struct inode *dir,
- const struct qstr *qstr)
-{
- int err;
-
- err = hfsplus_init_acl(inode, dir);
- if (!err)
- err = hfsplus_init_security(inode, dir, qstr);
- return err;
-}
+ const struct qstr *qstr);
#endif
diff --git a/fs/hfsplus/xattr_security.c b/fs/hfsplus/xattr_security.c
index 83b842f..f59b037 100644
--- a/fs/hfsplus/xattr_security.c
+++ b/fs/hfsplus/xattr_security.c
@@ -8,6 +8,7 @@
#include <linux/security.h>
#include "hfsplus_fs.h"
+#include "acl.h"
#include "xattr.h"
static int hfsplus_security_getxattr(struct dentry *dentry, const char *name,
@@ -96,6 +97,18 @@ int hfsplus_init_security(struct inode *inode, struct inode *dir,
&hfsplus_initxattrs, NULL);
}
+int hfsplus_init_inode_security(struct inode *inode,
+ struct inode *dir,
+ const struct qstr *qstr)
+{
+ int err;
+
+ err = hfsplus_init_acl(inode, dir);
+ if (!err)
+ err = hfsplus_init_security(inode, dir, qstr);
+ return err;
+}
+
const struct xattr_handler hfsplus_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.list = hfsplus_security_listxattr,
--
1.7.9.5
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