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 struct sock_extended_err {
9 	__u32	ee_errno;
10 	__u8	ee_origin;
11 	__u8	ee_type;
12 	__u8	ee_code;
13 	__u8	ee_pad;
14 	__u32   ee_info;
15 	__u32   ee_data;
16 };
17 
18 #define SO_EE_ORIGIN_NONE	0
19 #define SO_EE_ORIGIN_LOCAL	1
20 #define SO_EE_ORIGIN_ICMP	2
21 #define SO_EE_ORIGIN_ICMP6	3
22 #define SO_EE_ORIGIN_TXSTATUS	4
23 #define SO_EE_ORIGIN_ZEROCOPY	5
24 #define SO_EE_ORIGIN_TXTIME	6
25 #define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS
26 
27 #define SO_EE_OFFENDER(ee)	((struct sockaddr*)((ee)+1))
28 
29 #define SO_EE_CODE_ZEROCOPY_COPIED	1
30 
31 #define SO_EE_CODE_TXTIME_INVALID_PARAM	1
32 #define SO_EE_CODE_TXTIME_MISSED	2
33 
34 /**
35  *	struct scm_timestamping - timestamps exposed through cmsg
36  *
37  *	The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*
38  *	communicate network timestamps by passing this struct in a cmsg with
39  *	recvmsg(). See Documentation/networking/timestamping.txt for details.
40  */
41 struct scm_timestamping {
42 	struct timespec ts[3];
43 };
44 
45 struct scm_timestamping64 {
46 	struct __kernel_timespec ts[3];
47 };
48 
49 /* The type of scm_timestamping, passed in sock_extended_err ee_info.
50  * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]
51  * is zero, then this is a hardware timestamp and recorded in ts[2].
52  */
53 enum {
54 	SCM_TSTAMP_SND,		/* driver passed skb to NIC, or HW */
55 	SCM_TSTAMP_SCHED,	/* data entered the packet scheduler */
56 	SCM_TSTAMP_ACK,		/* data acknowledged by peer */
57 };
58 
59 #endif /* _UAPI_LINUX_ERRQUEUE_H */
60