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security: add flags to rename hooks

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Add flags to security_path_rename() and security_inode_rename() hooks.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Miklos Szeredi 2014-04-01 17:08:43 +02:00
parent 0a7c3937a1
commit 0b3974eb04
4 changed files with 16 additions and 9 deletions
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2
fs/cachefiles/namei.c
View File

@ -391,7 +391,7 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache,
path.dentry = dir;
path_to_graveyard.mnt = cache->mnt;
path_to_graveyard.dentry = cache->graveyard;
ret = security_path_rename(&path, rep, &path_to_graveyard, grave);
ret = security_path_rename(&path, rep, &path_to_graveyard, grave, 0);
if (ret < 0) {
cachefiles_io_error(cache, "Rename security error %d", ret);
} else {

5
fs/namei.c
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@ -4062,7 +4062,8 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
return error;
}
error = security_inode_rename(old_dir, old_dentry, new_dir, new_dentry);
error = security_inode_rename(old_dir, old_dentry, new_dir, new_dentry,
flags);
if (error)
return error;
@ -4217,7 +4218,7 @@ SYSCALL_DEFINE5(renameat2, int, olddfd, const char __user *, oldname,
goto exit5;
error = security_path_rename(&oldnd.path, old_dentry,
&newnd.path, new_dentry);
&newnd.path, new_dentry, flags);
if (error)
goto exit5;
error = vfs_rename(old_dir->d_inode, old_dentry,

12
include/linux/security.h
View File

@ -1793,7 +1793,8 @@ int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry);
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags);
int security_inode_readlink(struct dentry *dentry);
int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
int security_inode_permission(struct inode *inode, int mask);
@ -2161,7 +2162,8 @@ static inline int security_inode_mknod(struct inode *dir,
static inline int security_inode_rename(struct inode *old_dir,
struct dentry *old_dentry,
struct inode *new_dir,
struct dentry *new_dentry)
struct dentry *new_dentry,
unsigned int flags)
{
return 0;
}
@ -2955,7 +2957,8 @@ int security_path_symlink(struct path *dir, struct dentry *dentry,
int security_path_link(struct dentry *old_dentry, struct path *new_dir,
struct dentry *new_dentry);
int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
struct path *new_dir, struct dentry *new_dentry);
struct path *new_dir, struct dentry *new_dentry,
unsigned int flags);
int security_path_chmod(struct path *path, umode_t mode);
int security_path_chown(struct path *path, kuid_t uid, kgid_t gid);
int security_path_chroot(struct path *path);
@ -3003,7 +3006,8 @@ static inline int security_path_link(struct dentry *old_dentry,
static inline int security_path_rename(struct path *old_dir,
struct dentry *old_dentry,
struct path *new_dir,
struct dentry *new_dentry)
struct dentry *new_dentry,
unsigned int flags)
{
return 0;
}

6
security/security.c
View File

@ -433,7 +433,8 @@ int security_path_link(struct dentry *old_dentry, struct path *new_dir,
}
int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
struct path *new_dir, struct dentry *new_dentry)
struct path *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
(new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
@ -524,7 +525,8 @@ int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
}
int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry)
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
(new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))