1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI_LINUX_ERRQUEUE_H
3#define _UAPI_LINUX_ERRQUEUE_H
4
5#include <linux/types.h>
6#include <linux/time_types.h>
7
8struct sock_extended_err {
9 __u32 ee_errno;
10 __u8 ee_origin;
11 __u8 ee_type;
12 __u8 ee_code;
13 __u8 ee_pad;
14 __u32 ee_info;
15 __u32 ee_data;
16};
17
18#define SO_EE_ORIGIN_NONE 0
19#define SO_EE_ORIGIN_LOCAL 1
20#define SO_EE_ORIGIN_ICMP 2
21#define SO_EE_ORIGIN_ICMP6 3
22#define SO_EE_ORIGIN_TXSTATUS 4
23#define SO_EE_ORIGIN_ZEROCOPY 5
24#define SO_EE_ORIGIN_TXTIME 6
25#define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS
26
27#define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1))
28
29#define SO_EE_CODE_ZEROCOPY_COPIED 1
30
31#define SO_EE_CODE_TXTIME_INVALID_PARAM 1
32#define SO_EE_CODE_TXTIME_MISSED 2
33
34/**
35 * struct scm_timestamping - timestamps exposed through cmsg
36 *
37 * The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*
38 * communicate network timestamps by passing this struct in a cmsg with
39 * recvmsg(). See Documentation/networking/timestamping.txt for details.
40 */
41struct scm_timestamping {
42 struct timespec ts[3];
43};
44
45struct scm_timestamping64 {
46 struct __kernel_timespec ts[3];
47};
48
49/* The type of scm_timestamping, passed in sock_extended_err ee_info.
50 * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]
51 * is zero, then this is a hardware timestamp and recorded in ts[2].
52 */
53enum {
54 SCM_TSTAMP_SND, /* driver passed skb to NIC, or HW */
55 SCM_TSTAMP_SCHED, /* data entered the packet scheduler */
56 SCM_TSTAMP_ACK, /* data acknowledged by peer */
57};
58
59#endif /* _UAPI_LINUX_ERRQUEUE_H */
60