| 1 |
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| 2 | #undef TRACE_SYSTEM
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| 3 | #define TRACE_SYSTEM icmp
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| 4 |
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| 5 | #if !defined(_TRACE_ICMP_H) || defined(TRACE_HEADER_MULTI_READ)
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| 6 | #define _TRACE_ICMP_H
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| 7 |
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| 8 | #include <linux/icmp.h>
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| 9 | #include <linux/tracepoint.h>
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| 10 |
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| 11 | TRACE_EVENT(icmp_send,
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| 12 |
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| 13 | TP_PROTO(const struct sk_buff *skb, int type, int code),
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| 14 |
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| 15 | TP_ARGS(skb, type, code),
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| 16 |
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| 17 | TP_STRUCT__entry(
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| 18 | __field(const void *, skbaddr)
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| 19 | __field(int, type)
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| 20 | __field(int, code)
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| 21 | __array(__u8, saddr, 4)
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| 22 | __array(__u8, daddr, 4)
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| 23 | __field(__u16, sport)
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| 24 | __field(__u16, dport)
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| 25 | __field(unsigned short, ulen)
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| 26 | ),
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| 27 |
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| 28 | TP_fast_assign(
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| 29 | struct iphdr *iph = ip_hdr(skb);
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| 30 | struct udphdr _uh, *uh = NULL;
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| 31 | __be32 *p32;
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| 32 |
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| 33 | __entry->skbaddr = skb;
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| 34 | __entry->type = type;
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| 35 | __entry->code = code;
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| 36 |
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| 37 | if (iph->protocol == IPPROTO_UDP)
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| 38 | uh = skb_header_pointer(skb,
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| 39 | skb_network_offset(skb) +
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| 40 | (iph->ihl << 2),
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| 41 | sizeof(_uh), &_uh);
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| 42 |
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| 43 | if (!uh) {
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| 44 | __entry->sport = 0;
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| 45 | __entry->dport = 0;
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| 46 | __entry->ulen = 0;
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| 47 | } else {
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| 48 | __entry->sport = ntohs(uh->source);
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| 49 | __entry->dport = ntohs(uh->dest);
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| 50 | __entry->ulen = udp_get_len_short(uh);
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| 51 | }
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| 52 |
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| 53 | p32 = (__be32 *) __entry->saddr;
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| 54 | *p32 = iph->saddr;
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| 55 |
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| 56 | p32 = (__be32 *) __entry->daddr;
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| 57 | *p32 = iph->daddr;
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| 58 | ),
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| 59 |
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| 60 | TP_printk("icmp_send: type=%d, code=%d. From %pI4:%u to %pI4:%u ulen=%d skbaddr=%p",
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| 61 | __entry->type, __entry->code,
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| 62 | __entry->saddr, __entry->sport, __entry->daddr,
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| 63 | __entry->dport, __entry->ulen, __entry->skbaddr)
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| 64 | );
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| 65 |
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| 66 | #endif
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| 67 |
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| 68 |
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| 69 | #include <trace/define_trace.h>
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| 70 |
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