---
title: mach_msg_context_trailer_t
framework: kernel
role: symbol
role_heading: Structure
path: kernel/mach_msg_context_trailer_t
---

# mach_msg_context_trailer_t

## Declaration

```occ
typedef struct mach_msg_context_trailer_t {
    ...
} mach_msg_context_trailer_t;
```

## Topics

### Instance Properties

- [msgh_audit](kernel/mach_msg_context_trailer_t/1529139-msgh_audit.md)
- [msgh_context](kernel/mach_msg_context_trailer_t/1528869-msgh_context.md)
- [msgh_sender](kernel/mach_msg_context_trailer_t/1529055-msgh_sender.md)
- [msgh_seqno](kernel/mach_msg_context_trailer_t/1528837-msgh_seqno.md)
- [msgh_trailer_size](kernel/mach_msg_context_trailer_t/1528912-msgh_trailer_size.md)
- [msgh_trailer_type](kernel/mach_msg_context_trailer_t/1529110-msgh_trailer_type.md)

## See Also

### Messages

- [mach_msg_destroy_from_kernel_proper](kernel/3088823-mach_msg_destroy_from_kernel_pro.md)
- [mach_msg_overwrite](kernel/1528967-mach_msg_overwrite.md)
- [mach_msg_rpc_from_kernel_proper](kernel/1515351-mach_msg_rpc_from_kernel_proper.md)
- [mach_msg_send_from_kernel_proper](kernel/1515350-mach_msg_send_from_kernel_proper.md)
- [mach_exc_server](kernel/1559919-mach_exc_server.md)
- [mach_exc_server_routine](kernel/1559892-mach_exc_server_routine.md)
- [audit_triggers_server](kernel/1574070-audit_triggers_server.md)
- [audit_triggers_server_routine](kernel/1574074-audit_triggers_server_routine.md)
- [mach_msg_audit_trailer_t](kernel/mach_msg_audit_trailer_t.md)
- [mach_msg_base_t](kernel/mach_msg_base_t.md)
- [mach_msg_body_t](kernel/mach_msg_body_t.md)
- [mach_msg_empty_rcv_t](kernel/mach_msg_empty_rcv_t.md)
- [mach_msg_empty_send_t](kernel/mach_msg_empty_send_t.md)
- [mach_msg_guarded_port_descriptor32_t](kernel/mach_msg_guarded_port_descriptor32_t.md)
- [mach_msg_guarded_port_descriptor64_t](kernel/mach_msg_guarded_port_descriptor64_t.md)
- [mach_msg_guarded_port_descriptor_t](kernel/mach_msg_guarded_port_descriptor_t.md)
- [mach_msg_header_t](kernel/mach_msg_header_t.md)
- [mach_msg_mac_trailer_t](kernel/mach_msg_mac_trailer_t.md)
- [mach_msg_ool_descriptor32_t](kernel/mach_msg_ool_descriptor32_t.md)
- [mach_msg_ool_descriptor64_t](kernel/mach_msg_ool_descriptor64_t.md)
- [mach_msg_ool_descriptor_t](kernel/mach_msg_ool_descriptor_t.md)
- [mach_msg_ool_ports_descriptor32_t](kernel/mach_msg_ool_ports_descriptor32_t.md)
- [mach_msg_ool_ports_descriptor64_t](kernel/mach_msg_ool_ports_descriptor64_t.md)
- [mach_msg_ool_ports_descriptor_t](kernel/mach_msg_ool_ports_descriptor_t.md)
- [mach_msg_port_descriptor_t](kernel/mach_msg_port_descriptor_t.md)
- [mach_msg_security_trailer_t](kernel/mach_msg_security_trailer_t.md)
- [mach_msg_seqno_trailer_t](kernel/mach_msg_seqno_trailer_t.md)
- [mach_msg_trailer_t](kernel/mach_msg_trailer_t.md)
- [mach_msg_type_descriptor_t](kernel/mach_msg_type_descriptor_t.md)
- [mach_msg_bits_t](kernel/mach_msg_bits_t.md)
- [mach_msg_copy_options_t](kernel/mach_msg_copy_options_t.md)
- [mach_msg_descriptor_type_t](kernel/mach_msg_descriptor_type_t.md)
- [mach_msg_format_0_trailer_t](kernel/mach_msg_format_0_trailer_t.md)
- [mach_msg_guard_flags_t](kernel/mach_msg_guard_flags_t.md)
- [mach_msg_id_t](kernel/mach_msg_id_t.md)
- [mach_msg_max_trailer_t](kernel/mach_msg_max_trailer_t.md)
- [mach_msg_option_t](kernel/mach_msg_option_t.md)
- [mach_msg_options_t](kernel/mach_msg_options_t.md)
- [mach_msg_priority_t](kernel/mach_msg_priority_t.md)
- [mach_msg_return_t](kernel/mach_msg_return_t.md)
- [mach_msg_size_t](kernel/mach_msg_size_t.md)
- [mach_msg_timeout_t](kernel/mach_msg_timeout_t.md)
- [mach_msg_trailer_info_t](kernel/mach_msg_trailer_info_t.md)
- [mach_msg_trailer_size_t](kernel/mach_msg_trailer_size_t.md)
- [mach_msg_trailer_type_t](kernel/mach_msg_trailer_type_t.md)
- [mach_msg_type_name_t](kernel/mach_msg_type_name_t.md)
- [mach_msg_type_number_t](kernel/mach_msg_type_number_t.md)
- [mach_msg_type_size_t](kernel/mach_msg_type_size_t.md)
- [mach_msg_filter_id](kernel/mach_msg_filter_id.md)