---
title: user_sf_hdtr
framework: Kernel
role: symbol
platforms: [macOS 10.6+]
path: kernel/user_sf_hdtr
---

# user_sf_hdtr

## Declaration

```occ
struct user_sf_hdtr {
    ...
};
```

## Topics

### Instance Properties

- [hdr_cnt](kernel/user_sf_hdtr/1499257-hdr_cnt.md)
- [headers](kernel/user_sf_hdtr/1499226-headers.md)
- [trailers](kernel/user_sf_hdtr/1499439-trailers.md)
- [trl_cnt](kernel/user_sf_hdtr/1499412-trl_cnt.md)