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