Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM skb
4
5#if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_SKB_H
7
8#include <linux/skbuff.h>
9#include <linux/netdevice.h>
10#include <linux/tracepoint.h>
11
12#undef FN
13#define FN(reason) TRACE_DEFINE_ENUM(SKB_DROP_REASON_##reason);
14DEFINE_DROP_REASON(FN, FN)
15
16#undef FN
17#undef FNe
18#define FN(reason) { SKB_DROP_REASON_##reason, #reason },
19#define FNe(reason) { SKB_DROP_REASON_##reason, #reason }
20
21/*
22 * Tracepoint for free an sk_buff:
23 */
24TRACE_EVENT(kfree_skb,
25
26 TP_PROTO(struct sk_buff *skb, void *location,
27 enum skb_drop_reason reason, struct sock *rx_sk),
28
29 TP_ARGS(skb, location, reason, rx_sk),
30
31 TP_STRUCT__entry(
32 __field(void *, skbaddr)
33 __field(void *, location)
34 __field(void *, rx_sk)
35 __field(unsigned short, protocol)
36 __field(enum skb_drop_reason, reason)
37 ),
38
39 TP_fast_assign(
40 __entry->skbaddr = skb;
41 __entry->location = location;
42 __entry->rx_sk = rx_sk;
43 __entry->protocol = ntohs(skb->protocol);
44 __entry->reason = reason;
45 ),
46
47 TP_printk("skbaddr=%p rx_sk=%p protocol=%u location=%pS reason: %s",
48 __entry->skbaddr, __entry->rx_sk, __entry->protocol,
49 __entry->location,
50 __print_symbolic(__entry->reason,
51 DEFINE_DROP_REASON(FN, FNe)))
52);
53
54#undef FN
55#undef FNe
56
57TRACE_EVENT(consume_skb,
58
59 TP_PROTO(struct sk_buff *skb, void *location),
60
61 TP_ARGS(skb, location),
62
63 TP_STRUCT__entry(
64 __field( void *, skbaddr)
65 __field( void *, location)
66 ),
67
68 TP_fast_assign(
69 __entry->skbaddr = skb;
70 __entry->location = location;
71 ),
72
73 TP_printk("skbaddr=%p location=%pS", __entry->skbaddr, __entry->location)
74);
75
76TRACE_EVENT(skb_copy_datagram_iovec,
77
78 TP_PROTO(const struct sk_buff *skb, int len),
79
80 TP_ARGS(skb, len),
81
82 TP_STRUCT__entry(
83 __field( const void *, skbaddr )
84 __field( int, len )
85 ),
86
87 TP_fast_assign(
88 __entry->skbaddr = skb;
89 __entry->len = len;
90 ),
91
92 TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len)
93);
94
95#endif /* _TRACE_SKB_H */
96
97/* This part must be outside protection */
98#include <trace/define_trace.h>