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 #include <linux/time_types.h> 7 8 /* RFC 4884: return offset to extension struct + validation */ 9 struct sock_ee_data_rfc4884 { 10 __u16 len; 11 __u8 flags; 12 __u8 reserved; 13 }; 14 15 struct 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 0 29 #define SO_EE_ORIGIN_LOCAL 1 30 #define SO_EE_ORIGIN_ICMP 2 31 #define SO_EE_ORIGIN_ICMP6 3 32 #define SO_EE_ORIGIN_TXSTATUS 4 33 #define SO_EE_ORIGIN_ZEROCOPY 5 34 #define SO_EE_ORIGIN_TXTIME 6 35 #define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS 36 37 #define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1)) 38 39 #define SO_EE_CODE_ZEROCOPY_COPIED 1 40 41 #define SO_EE_CODE_TXTIME_INVALID_PARAM 1 42 #define SO_EE_CODE_TXTIME_MISSED 2 43 44 #define SO_EE_RFC4884_FLAG_INVALID 1 45 46 /** 47 * struct scm_timestamping - timestamps exposed through cmsg 48 * 49 * The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_* 50 * communicate network timestamps by passing this struct in a cmsg with 51 * recvmsg(). See Documentation/networking/timestamping.rst for details. 52 * User space sees a timespec definition that matches either 53 * __kernel_timespec or __kernel_old_timespec, in the kernel we 54 * require two structure definitions to provide both. 55 */ 56 struct scm_timestamping { 57 #ifdef __KERNEL__ 58 struct __kernel_old_timespec ts[3]; 59 #else 60 struct timespec ts[3]; 61 #endif 62 }; 63 64 struct 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 */ 72 enum { 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