1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM icmp
#if !defined(_TRACE_ICMP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_ICMP_H
#include <linux/icmp.h>
#include <linux/tracepoint.h>
TRACE_EVENT(icmp_send,
TP_PROTO(const struct sk_buff *skb, int type, int code),
TP_ARGS(skb, type, code),
TP_STRUCT__entry(
__field(const void *, skbaddr)
__field(int, type)
__field(int, code)
__array(__u8, saddr, 4)
__array(__u8, daddr, 4)
__field(__u16, sport)
__field(__u16, dport)
__field(unsigned short, ulen)
),
TP_fast_assign(
struct iphdr *iph = ip_hdr(skb);
struct udphdr *uh = udp_hdr(skb);
int proto_4 = iph->protocol;
__be32 *p32;
__entry->skbaddr = skb;
__entry->type = type;
__entry->code = code;
if (proto_4 != IPPROTO_UDP || (u8 *)uh < skb->head ||
(u8 *)uh + sizeof(struct udphdr)
> skb_tail_pointer(skb)) {
__entry->sport = 0;
__entry->dport = 0;
__entry->ulen = 0;
} else {
__entry->sport = ntohs(uh->source);
__entry->dport = ntohs(uh->dest);
__entry->ulen = ntohs(uh->len);
}
p32 = (__be32 *) __entry->saddr;
*p32 = iph->saddr;
p32 = (__be32 *) __entry->daddr;
*p32 = iph->daddr;
),
TP_printk("icmp_send: type=%d, code=%d. From %pI4:%u to %pI4:%u ulen=%d skbaddr=%p",
__entry->type, __entry->code,
__entry->saddr, __entry->sport, __entry->daddr,
__entry->dport, __entry->ulen, __entry->skbaddr)
);
#endif /* _TRACE_ICMP_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
|
