include/uapi/linux/errqueue.h

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