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