#include <linux/reiserfs_fs.h> #include <linux/errno.h> #include <linux/fs.h> #include <linux/pagemap.h> #include <linux/xattr.h> #include <linux/reiserfs_xattr.h> #include <asm/uaccess.h> #define XATTR_SECURITY_PREFIX "security." static int security_get(struct inode *inode, const char *name, void *buffer, size_t size) { if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) return -EINVAL; if (is_reiserfs_priv_object(inode)) return -EPERM; return reiserfs_xattr_get(inode, name, buffer, size); } static int security_set(struct inode *inode, const char *name, const void *buffer, size_t size, int flags) { if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) return -EINVAL; if (is_reiserfs_priv_object(inode)) return -EPERM; return reiserfs_xattr_set(inode, name, buffer, size, flags); } static int security_del(struct inode *inode, const char *name) { if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) return -EINVAL; if (is_reiserfs_priv_object(inode)) return -EPERM; return 0; } static int security_list(struct inode *inode, const char *name, int namelen, char *out) { int len = namelen; if (is_reiserfs_priv_object(inode)) return 0; if (out) memcpy(out, name, len); return len; } struct reiserfs_xattr_handler security_handler = { .prefix = XATTR_SECURITY_PREFIX, .get = security_get, .set = security_set, .del = security_del, .list = security_list, };