LXR linux/include/uapi/linux/errqueue.h

   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_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS
  24
  25#define SO_EE_OFFENDER(ee)      ((struct sockaddr*)((ee)+1))
  26
  27#define SO_EE_CODE_ZEROCOPY_COPIED      1
  28
  29/**
  30 *      struct scm_timestamping - timestamps exposed through cmsg
  31 *
  32 *      The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*
  33 *      communicate network timestamps by passing this struct in a cmsg with
  34 *      recvmsg(). See Documentation/networking/timestamping.txt for details.
  35 */
  36struct scm_timestamping {
  37        struct timespec ts[3];
  38};
  39
  40/* The type of scm_timestamping, passed in sock_extended_err ee_info.
  41 * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]
  42 * is zero, then this is a hardware timestamp and recorded in ts[2].
  43 */
  44enum {
  45        SCM_TSTAMP_SND,         /* driver passed skb to NIC, or HW */
  46        SCM_TSTAMP_SCHED,       /* data entered the packet scheduler */
  47        SCM_TSTAMP_ACK,         /* data acknowledged by peer */
  48};
  49
  50#endif /* _UAPI_LINUX_ERRQUEUE_H */
  51