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 | |