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);
14 DEFINE_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  */
24 TRACE_EVENT(kfree_skb,
25 
26 	TP_PROTO(struct sk_buff *skb, void *location,
27 		 enum skb_drop_reason reason),
28 
29 	TP_ARGS(skb, location, reason),
30 
31 	TP_STRUCT__entry(
32 		__field(void *,		skbaddr)
33 		__field(void *,		location)
34 		__field(unsigned short,	protocol)
35 		__field(enum skb_drop_reason,	reason)
36 	),
37 
38 	TP_fast_assign(
39 		__entry->skbaddr = skb;
40 		__entry->location = location;
41 		__entry->protocol = ntohs(skb->protocol);
42 		__entry->reason = reason;
43 	),
44 
45 	TP_printk("skbaddr=%p protocol=%u location=%pS reason: %s",
46 		  __entry->skbaddr, __entry->protocol, __entry->location,
47 		  __print_symbolic(__entry->reason,
48 				   DEFINE_DROP_REASON(FN, FNe)))
49 );
50 
51 #undef FN
52 #undef FNe
53 
54 TRACE_EVENT(consume_skb,
55 
56 	TP_PROTO(struct sk_buff *skb, void *location),
57 
58 	TP_ARGS(skb, location),
59 
60 	TP_STRUCT__entry(
61 		__field(	void *,	skbaddr)
62 		__field(	void *,	location)
63 	),
64 
65 	TP_fast_assign(
66 		__entry->skbaddr = skb;
67 		__entry->location = location;
68 	),
69 
70 	TP_printk("skbaddr=%p location=%pS", __entry->skbaddr, __entry->location)
71 );
72 
73 TRACE_EVENT(skb_copy_datagram_iovec,
74 
75 	TP_PROTO(const struct sk_buff *skb, int len),
76 
77 	TP_ARGS(skb, len),
78 
79 	TP_STRUCT__entry(
80 		__field(	const void *,		skbaddr		)
81 		__field(	int,			len		)
82 	),
83 
84 	TP_fast_assign(
85 		__entry->skbaddr = skb;
86 		__entry->len = len;
87 	),
88 
89 	TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len)
90 );
91 
92 #endif /* _TRACE_SKB_H */
93 
94 /* This part must be outside protection */
95 #include <trace/define_trace.h>
96