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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI_LINUX_ERRQUEUE_H3#define _UAPI_LINUX_ERRQUEUE_H4 5#include <linux/types.h>6#include <linux/time_types.h>7 8/* RFC 4884: return offset to extension struct + validation */9struct sock_ee_data_rfc4884 {10 __u16 len;11 __u8 flags;12 __u8 reserved;13};14 15struct sock_extended_err {16 __u32 ee_errno; 17 __u8 ee_origin;18 __u8 ee_type;19 __u8 ee_code;20 __u8 ee_pad;21 __u32 ee_info;22 union {23 __u32 ee_data;24 struct sock_ee_data_rfc4884 ee_rfc4884;25 };26};27 28#define SO_EE_ORIGIN_NONE 029#define SO_EE_ORIGIN_LOCAL 130#define SO_EE_ORIGIN_ICMP 231#define SO_EE_ORIGIN_ICMP6 332#define SO_EE_ORIGIN_TXSTATUS 433#define SO_EE_ORIGIN_ZEROCOPY 534#define SO_EE_ORIGIN_TXTIME 635#define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS36 37#define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1))38 39#define SO_EE_CODE_ZEROCOPY_COPIED 140 41#define SO_EE_CODE_TXTIME_INVALID_PARAM 142#define SO_EE_CODE_TXTIME_MISSED 243 44#define SO_EE_RFC4884_FLAG_INVALID 145 46/**47 * struct scm_timestamping - timestamps exposed through cmsg48 *49 * The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*50 * communicate network timestamps by passing this struct in a cmsg with51 * recvmsg(). See Documentation/networking/timestamping.rst for details.52 * User space sees a timespec definition that matches either53 * __kernel_timespec or __kernel_old_timespec, in the kernel we54 * require two structure definitions to provide both.55 */56struct scm_timestamping {57#ifdef __KERNEL__58 struct __kernel_old_timespec ts[3];59#else60 struct timespec ts[3];61#endif62};63 64struct scm_timestamping64 {65 struct __kernel_timespec ts[3];66};67 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].71 */72enum {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 */76};77 78#endif /* _UAPI_LINUX_ERRQUEUE_H */79