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