/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef _LINUX_ERRQUEUE_H

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#define _LINUX_ERRQUEUE_H

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#include <linux/types.h>

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struct sock_extended_err {

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__u32 ee_errno;

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__u8 ee_origin;

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__u8 ee_type;

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__u8 ee_code;

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__u8 ee_pad;

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__u32 ee_info;

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__u32 ee_data;

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};

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#define SO_EE_ORIGIN_NONE 0

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#define SO_EE_ORIGIN_LOCAL 1

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#define SO_EE_ORIGIN_ICMP 2

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#define SO_EE_ORIGIN_ICMP6 3

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#define SO_EE_ORIGIN_TXSTATUS 4

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#define SO_EE_ORIGIN_ZEROCOPY 5

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#define SO_EE_ORIGIN_TXTIME 6

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#define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS

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#define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1))

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#define SO_EE_CODE_ZEROCOPY_COPIED 1

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#define SO_EE_CODE_TXTIME_INVALID_PARAM 1

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#define SO_EE_CODE_TXTIME_MISSED 2

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/**

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* struct scm_timestamping - timestamps exposed through cmsg

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*

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* The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*

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* communicate network timestamps by passing this struct in a cmsg with

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* recvmsg(). See Documentation/networking/timestamping.txt for details.

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*/

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struct scm_timestamping {

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struct timespec ts[3];

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};

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/* The type of scm_timestamping, passed in sock_extended_err ee_info.

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* This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]

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* is zero, then this is a hardware timestamp and recorded in ts[2].

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*/

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enum {

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SCM_TSTAMP_SND, /* driver passed skb to NIC, or HW */

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SCM_TSTAMP_SCHED, /* data entered the packet scheduler */

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SCM_TSTAMP_ACK, /* data acknowledged by peer */

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};

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#endif /* _LINUX_ERRQUEUE_H */

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