diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/bpf/inode.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/bpf/inode.c b/kernel/bpf/inode.c index 5a8a797d50b7..f2ece3c174a5 100644 --- a/kernel/bpf/inode.c +++ b/kernel/bpf/inode.c @@ -187,11 +187,31 @@ static int bpf_mkobj(struct inode *dir, struct dentry *dentry, umode_t mode, } } +static int bpf_link(struct dentry *old_dentry, struct inode *dir, + struct dentry *new_dentry) +{ + if (bpf_dname_reserved(new_dentry)) + return -EPERM; + + return simple_link(old_dentry, dir, new_dentry); +} + +static int bpf_rename(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry) +{ + if (bpf_dname_reserved(new_dentry)) + return -EPERM; + + return simple_rename(old_dir, old_dentry, new_dir, new_dentry); +} + static const struct inode_operations bpf_dir_iops = { .lookup = simple_lookup, .mknod = bpf_mkobj, .mkdir = bpf_mkdir, .rmdir = simple_rmdir, + .rename = bpf_rename, + .link = bpf_link, .unlink = simple_unlink, }; |