diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/security.c | 30 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 14 |
2 files changed, 44 insertions, 0 deletions
diff --git a/security/security.c b/security/security.c index 596d41818577..a5766cbf6f7c 100644 --- a/security/security.c +++ b/security/security.c @@ -2623,6 +2623,36 @@ void security_inode_post_removexattr(struct dentry *dentry, const char *name) } /** + * security_inode_file_setattr() - check if setting fsxattr is allowed + * @dentry: file to set filesystem extended attributes on + * @fa: extended attributes to set on the inode + * + * Called when file_setattr() syscall or FS_IOC_FSSETXATTR ioctl() is called on + * inode + * + * Return: Returns 0 if permission is granted. + */ +int security_inode_file_setattr(struct dentry *dentry, struct file_kattr *fa) +{ + return call_int_hook(inode_file_setattr, dentry, fa); +} + +/** + * security_inode_file_getattr() - check if retrieving fsxattr is allowed + * @dentry: file to retrieve filesystem extended attributes from + * @fa: extended attributes to get + * + * Called when file_getattr() syscall or FS_IOC_FSGETXATTR ioctl() is called on + * inode + * + * Return: Returns 0 if permission is granted. + */ +int security_inode_file_getattr(struct dentry *dentry, struct file_kattr *fa) +{ + return call_int_hook(inode_file_getattr, dentry, fa); +} + +/** * security_inode_need_killpriv() - Check if security_inode_killpriv() required * @dentry: associated dentry * diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 595ceb314aeb..0dadce2267c1 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3480,6 +3480,18 @@ static int selinux_inode_removexattr(struct mnt_idmap *idmap, return -EACCES; } +static int selinux_inode_file_setattr(struct dentry *dentry, + struct file_kattr *fa) +{ + return dentry_has_perm(current_cred(), dentry, FILE__SETATTR); +} + +static int selinux_inode_file_getattr(struct dentry *dentry, + struct file_kattr *fa) +{ + return dentry_has_perm(current_cred(), dentry, FILE__GETATTR); +} + static int selinux_path_notify(const struct path *path, u64 mask, unsigned int obj_type) { @@ -7350,6 +7362,8 @@ static struct security_hook_list selinux_hooks[] __ro_after_init = { LSM_HOOK_INIT(inode_getxattr, selinux_inode_getxattr), LSM_HOOK_INIT(inode_listxattr, selinux_inode_listxattr), LSM_HOOK_INIT(inode_removexattr, selinux_inode_removexattr), + LSM_HOOK_INIT(inode_file_getattr, selinux_inode_file_getattr), + LSM_HOOK_INIT(inode_file_setattr, selinux_inode_file_setattr), LSM_HOOK_INIT(inode_set_acl, selinux_inode_set_acl), LSM_HOOK_INIT(inode_get_acl, selinux_inode_get_acl), LSM_HOOK_INIT(inode_remove_acl, selinux_inode_remove_acl), |