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 #define TRACE_SKB_DROP_REASON \ 13 EM(SKB_DROP_REASON_NOT_SPECIFIED, NOT_SPECIFIED) \ 14 EM(SKB_DROP_REASON_NO_SOCKET, NO_SOCKET) \ 15 EM(SKB_DROP_REASON_PKT_TOO_SMALL, PKT_TOO_SMALL) \ 16 EM(SKB_DROP_REASON_TCP_CSUM, TCP_CSUM) \ 17 EM(SKB_DROP_REASON_SOCKET_FILTER, SOCKET_FILTER) \ 18 EM(SKB_DROP_REASON_UDP_CSUM, UDP_CSUM) \ 19 EM(SKB_DROP_REASON_NETFILTER_DROP, NETFILTER_DROP) \ 20 EM(SKB_DROP_REASON_OTHERHOST, OTHERHOST) \ 21 EM(SKB_DROP_REASON_IP_CSUM, IP_CSUM) \ 22 EM(SKB_DROP_REASON_IP_INHDR, IP_INHDR) \ 23 EM(SKB_DROP_REASON_IP_RPFILTER, IP_RPFILTER) \ 24 EM(SKB_DROP_REASON_UNICAST_IN_L2_MULTICAST, \ 25 UNICAST_IN_L2_MULTICAST) \ 26 EMe(SKB_DROP_REASON_MAX, MAX) 27 28 #undef EM 29 #undef EMe 30 31 #define EM(a, b) TRACE_DEFINE_ENUM(a); 32 #define EMe(a, b) TRACE_DEFINE_ENUM(a); 33 34 TRACE_SKB_DROP_REASON 35 36 #undef EM 37 #undef EMe 38 #define EM(a, b) { a, #b }, 39 #define EMe(a, b) { a, #b } 40 41 /* 42 * Tracepoint for free an sk_buff: 43 */ 44 TRACE_EVENT(kfree_skb, 45 46 TP_PROTO(struct sk_buff *skb, void *location, 47 enum skb_drop_reason reason), 48 49 TP_ARGS(skb, location, reason), 50 51 TP_STRUCT__entry( 52 __field(void *, skbaddr) 53 __field(void *, location) 54 __field(unsigned short, protocol) 55 __field(enum skb_drop_reason, reason) 56 ), 57 58 TP_fast_assign( 59 __entry->skbaddr = skb; 60 __entry->location = location; 61 __entry->protocol = ntohs(skb->protocol); 62 __entry->reason = reason; 63 ), 64 65 TP_printk("skbaddr=%p protocol=%u location=%p reason: %s", 66 __entry->skbaddr, __entry->protocol, __entry->location, 67 __print_symbolic(__entry->reason, 68 TRACE_SKB_DROP_REASON)) 69 ); 70 71 TRACE_EVENT(consume_skb, 72 73 TP_PROTO(struct sk_buff *skb), 74 75 TP_ARGS(skb), 76 77 TP_STRUCT__entry( 78 __field( void *, skbaddr ) 79 ), 80 81 TP_fast_assign( 82 __entry->skbaddr = skb; 83 ), 84 85 TP_printk("skbaddr=%p", __entry->skbaddr) 86 ); 87 88 TRACE_EVENT(skb_copy_datagram_iovec, 89 90 TP_PROTO(const struct sk_buff *skb, int len), 91 92 TP_ARGS(skb, len), 93 94 TP_STRUCT__entry( 95 __field( const void *, skbaddr ) 96 __field( int, len ) 97 ), 98 99 TP_fast_assign( 100 __entry->skbaddr = skb; 101 __entry->len = len; 102 ), 103 104 TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len) 105 ); 106 107 #endif /* _TRACE_SKB_H */ 108 109 /* This part must be outside protection */ 110 #include <trace/define_trace.h> 111