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| 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, struct sock *rx_sk), |
| 28 | |
| 29 | TP_ARGS(skb, location, reason, rx_sk), |
| 30 | |
| 31 | TP_STRUCT__entry( |
| 32 | __field(void *, skbaddr) |
| 33 | __field(void *, location) |
| 34 | __field(void *, rx_sk) |
| 35 | __field(unsigned short, protocol) |
| 36 | __field(enum skb_drop_reason, reason) |
| 37 | ), |
| 38 | |
| 39 | TP_fast_assign( |
| 40 | __entry->skbaddr = skb; |
| 41 | __entry->location = location; |
| 42 | __entry->rx_sk = rx_sk; |
| 43 | __entry->protocol = ntohs(skb->protocol); |
| 44 | __entry->reason = reason; |
| 45 | ), |
| 46 | |
| 47 | TP_printk("skbaddr=%p rx_sk=%p protocol=%u location=%pS reason: %s", |
| 48 | __entry->skbaddr, __entry->rx_sk, __entry->protocol, |
| 49 | __entry->location, |
| 50 | __print_symbolic(__entry->reason, |
| 51 | DEFINE_DROP_REASON(FN, FNe))) |
| 52 | ); |
| 53 | |
| 54 | #undef FN |
| 55 | #undef FNe |
| 56 | |
| 57 | TRACE_EVENT(consume_skb, |
| 58 | |
| 59 | TP_PROTO(struct sk_buff *skb, void *location), |
| 60 | |
| 61 | TP_ARGS(skb, location), |
| 62 | |
| 63 | TP_STRUCT__entry( |
| 64 | __field( void *, skbaddr) |
| 65 | __field( void *, location) |
| 66 | ), |
| 67 | |
| 68 | TP_fast_assign( |
| 69 | __entry->skbaddr = skb; |
| 70 | __entry->location = location; |
| 71 | ), |
| 72 | |
| 73 | TP_printk("skbaddr=%p location=%pS", __entry->skbaddr, __entry->location) |
| 74 | ); |
| 75 | |
| 76 | TRACE_EVENT(skb_copy_datagram_iovec, |
| 77 | |
| 78 | TP_PROTO(const struct sk_buff *skb, int len), |
| 79 | |
| 80 | TP_ARGS(skb, len), |
| 81 | |
| 82 | TP_STRUCT__entry( |
| 83 | __field( const void *, skbaddr ) |
| 84 | __field( int, len ) |
| 85 | ), |
| 86 | |
| 87 | TP_fast_assign( |
| 88 | __entry->skbaddr = skb; |
| 89 | __entry->len = len; |
| 90 | ), |
| 91 | |
| 92 | TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len) |
| 93 | ); |
| 94 | |
| 95 | #endif /* _TRACE_SKB_H */ |
| 96 | |
| 97 | /* This part must be outside protection */ |
| 98 | #include <trace/define_trace.h> |
| 99 |
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