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 */
47