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Commit 0b3974eb authored by Miklos Szeredi's avatar Miklos Szeredi
Browse files

security: add flags to rename hooks 



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

Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
Reviewed-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 0a7c3937

fs/cachefiles/namei.c

+1 −1
Original line number Diff line number Diff line
@@ -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 {

fs/namei.c

+3 −2
Original line number Diff line number Diff line
@@ -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,

include/linux/security.h

+8 −4
Original line number Diff line number Diff line
@@ -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;

}

security/security.c

+4 −2
Original line number Diff line number Diff line
@@ -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))))