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