1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_LINUX_ERRQUEUE_H 3*4882a593Smuzhiyun #define _UAPI_LINUX_ERRQUEUE_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun #include <linux/time_types.h> 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun /* RFC 4884: return offset to extension struct + validation */ 9*4882a593Smuzhiyun struct sock_ee_data_rfc4884 { 10*4882a593Smuzhiyun __u16 len; 11*4882a593Smuzhiyun __u8 flags; 12*4882a593Smuzhiyun __u8 reserved; 13*4882a593Smuzhiyun }; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun struct sock_extended_err { 16*4882a593Smuzhiyun __u32 ee_errno; 17*4882a593Smuzhiyun __u8 ee_origin; 18*4882a593Smuzhiyun __u8 ee_type; 19*4882a593Smuzhiyun __u8 ee_code; 20*4882a593Smuzhiyun __u8 ee_pad; 21*4882a593Smuzhiyun __u32 ee_info; 22*4882a593Smuzhiyun union { 23*4882a593Smuzhiyun __u32 ee_data; 24*4882a593Smuzhiyun struct sock_ee_data_rfc4884 ee_rfc4884; 25*4882a593Smuzhiyun }; 26*4882a593Smuzhiyun }; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun #define SO_EE_ORIGIN_NONE 0 29*4882a593Smuzhiyun #define SO_EE_ORIGIN_LOCAL 1 30*4882a593Smuzhiyun #define SO_EE_ORIGIN_ICMP 2 31*4882a593Smuzhiyun #define SO_EE_ORIGIN_ICMP6 3 32*4882a593Smuzhiyun #define SO_EE_ORIGIN_TXSTATUS 4 33*4882a593Smuzhiyun #define SO_EE_ORIGIN_ZEROCOPY 5 34*4882a593Smuzhiyun #define SO_EE_ORIGIN_TXTIME 6 35*4882a593Smuzhiyun #define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun #define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1)) 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun #define SO_EE_CODE_ZEROCOPY_COPIED 1 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #define SO_EE_CODE_TXTIME_INVALID_PARAM 1 42*4882a593Smuzhiyun #define SO_EE_CODE_TXTIME_MISSED 2 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #define SO_EE_RFC4884_FLAG_INVALID 1 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /** 47*4882a593Smuzhiyun * struct scm_timestamping - timestamps exposed through cmsg 48*4882a593Smuzhiyun * 49*4882a593Smuzhiyun * The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_* 50*4882a593Smuzhiyun * communicate network timestamps by passing this struct in a cmsg with 51*4882a593Smuzhiyun * recvmsg(). See Documentation/networking/timestamping.rst for details. 52*4882a593Smuzhiyun * User space sees a timespec definition that matches either 53*4882a593Smuzhiyun * __kernel_timespec or __kernel_old_timespec, in the kernel we 54*4882a593Smuzhiyun * require two structure definitions to provide both. 55*4882a593Smuzhiyun */ 56*4882a593Smuzhiyun struct scm_timestamping { 57*4882a593Smuzhiyun #ifdef __KERNEL__ 58*4882a593Smuzhiyun struct __kernel_old_timespec ts[3]; 59*4882a593Smuzhiyun #else 60*4882a593Smuzhiyun struct timespec ts[3]; 61*4882a593Smuzhiyun #endif 62*4882a593Smuzhiyun }; 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun struct scm_timestamping64 { 65*4882a593Smuzhiyun struct __kernel_timespec ts[3]; 66*4882a593Smuzhiyun }; 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun /* The type of scm_timestamping, passed in sock_extended_err ee_info. 69*4882a593Smuzhiyun * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0] 70*4882a593Smuzhiyun * is zero, then this is a hardware timestamp and recorded in ts[2]. 71*4882a593Smuzhiyun */ 72*4882a593Smuzhiyun enum { 73*4882a593Smuzhiyun SCM_TSTAMP_SND, /* driver passed skb to NIC, or HW */ 74*4882a593Smuzhiyun SCM_TSTAMP_SCHED, /* data entered the packet scheduler */ 75*4882a593Smuzhiyun SCM_TSTAMP_ACK, /* data acknowledged by peer */ 76*4882a593Smuzhiyun }; 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun #endif /* _UAPI_LINUX_ERRQUEUE_H */ 79