1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_LINUX_ERRQUEUE_H
3 #define _UAPI_LINUX_ERRQUEUE_H
5 #include <linux/types.h>
6 #include <linux/time_types.h>
8 /* RFC 4884: return offset to extension struct + validation */
9 struct sock_ee_data_rfc4884
{
15 struct sock_extended_err
{
24 struct sock_ee_data_rfc4884 ee_rfc4884
;
28 #define SO_EE_ORIGIN_NONE 0
29 #define SO_EE_ORIGIN_LOCAL 1
30 #define SO_EE_ORIGIN_ICMP 2
31 #define SO_EE_ORIGIN_ICMP6 3
32 #define SO_EE_ORIGIN_TXSTATUS 4
33 #define SO_EE_ORIGIN_ZEROCOPY 5
34 #define SO_EE_ORIGIN_TXTIME 6
35 #define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS
37 #define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1))
39 #define SO_EE_CODE_ZEROCOPY_COPIED 1
41 #define SO_EE_CODE_TXTIME_INVALID_PARAM 1
42 #define SO_EE_CODE_TXTIME_MISSED 2
44 #define SO_EE_RFC4884_FLAG_INVALID 1
47 * struct scm_timestamping - timestamps exposed through cmsg
49 * The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*
50 * communicate network timestamps by passing this struct in a cmsg with
51 * recvmsg(). See Documentation/networking/timestamping.rst for details.
52 * User space sees a timespec definition that matches either
53 * __kernel_timespec or __kernel_old_timespec, in the kernel we
54 * require two structure definitions to provide both.
56 struct scm_timestamping
{
58 struct __kernel_old_timespec ts
[3];
60 struct timespec ts
[3];
64 struct scm_timestamping64
{
65 struct __kernel_timespec ts
[3];
68 /* The type of scm_timestamping, passed in sock_extended_err ee_info.
69 * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]
70 * is zero, then this is a hardware timestamp and recorded in ts[2].
73 SCM_TSTAMP_SND
, /* driver passed skb to NIC, or HW */
74 SCM_TSTAMP_SCHED
, /* data entered the packet scheduler */
75 SCM_TSTAMP_ACK
, /* data acknowledged by peer */
78 #endif /* _UAPI_LINUX_ERRQUEUE_H */