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 EM(SKB_DROP_REASON_XFRM_POLICY, XFRM_POLICY) \ 27 EM(SKB_DROP_REASON_IP_NOPROTO, IP_NOPROTO) \ 28 EM(SKB_DROP_REASON_SOCKET_RCVBUFF, SOCKET_RCVBUFF) \ 29 EM(SKB_DROP_REASON_PROTO_MEM, PROTO_MEM) \ 30 EM(SKB_DROP_REASON_TCP_MD5NOTFOUND, TCP_MD5NOTFOUND) \ 31 EM(SKB_DROP_REASON_TCP_MD5UNEXPECTED, \ 32 TCP_MD5UNEXPECTED) \ 33 EM(SKB_DROP_REASON_TCP_MD5FAILURE, TCP_MD5FAILURE) \ 34 EM(SKB_DROP_REASON_SOCKET_BACKLOG, SOCKET_BACKLOG) \ 35 EM(SKB_DROP_REASON_TCP_FLAGS, TCP_FLAGS) \ 36 EM(SKB_DROP_REASON_TCP_ZEROWINDOW, TCP_ZEROWINDOW) \ 37 EM(SKB_DROP_REASON_TCP_OLD_DATA, TCP_OLD_DATA) \ 38 EM(SKB_DROP_REASON_TCP_OVERWINDOW, TCP_OVERWINDOW) \ 39 EM(SKB_DROP_REASON_TCP_OFOMERGE, TCP_OFOMERGE) \ 40 EM(SKB_DROP_REASON_IP_OUTNOROUTES, IP_OUTNOROUTES) \ 41 EM(SKB_DROP_REASON_BPF_CGROUP_EGRESS, \ 42 BPF_CGROUP_EGRESS) \ 43 EM(SKB_DROP_REASON_IPV6DISABLED, IPV6DISABLED) \ 44 EM(SKB_DROP_REASON_NEIGH_CREATEFAIL, NEIGH_CREATEFAIL) \ 45 EM(SKB_DROP_REASON_NEIGH_FAILED, NEIGH_FAILED) \ 46 EM(SKB_DROP_REASON_NEIGH_QUEUEFULL, NEIGH_QUEUEFULL) \ 47 EM(SKB_DROP_REASON_NEIGH_DEAD, NEIGH_DEAD) \ 48 EMe(SKB_DROP_REASON_MAX, MAX) 49 50 #undef EM 51 #undef EMe 52 53 #define EM(a, b) TRACE_DEFINE_ENUM(a); 54 #define EMe(a, b) TRACE_DEFINE_ENUM(a); 55 56 TRACE_SKB_DROP_REASON 57 58 #undef EM 59 #undef EMe 60 #define EM(a, b) { a, #b }, 61 #define EMe(a, b) { a, #b } 62 63 /* 64 * Tracepoint for free an sk_buff: 65 */ 66 TRACE_EVENT(kfree_skb, 67 68 TP_PROTO(struct sk_buff *skb, void *location, 69 enum skb_drop_reason reason), 70 71 TP_ARGS(skb, location, reason), 72 73 TP_STRUCT__entry( 74 __field(void *, skbaddr) 75 __field(void *, location) 76 __field(unsigned short, protocol) 77 __field(enum skb_drop_reason, reason) 78 ), 79 80 TP_fast_assign( 81 __entry->skbaddr = skb; 82 __entry->location = location; 83 __entry->protocol = ntohs(skb->protocol); 84 __entry->reason = reason; 85 ), 86 87 TP_printk("skbaddr=%p protocol=%u location=%p reason: %s", 88 __entry->skbaddr, __entry->protocol, __entry->location, 89 __print_symbolic(__entry->reason, 90 TRACE_SKB_DROP_REASON)) 91 ); 92 93 TRACE_EVENT(consume_skb, 94 95 TP_PROTO(struct sk_buff *skb), 96 97 TP_ARGS(skb), 98 99 TP_STRUCT__entry( 100 __field( void *, skbaddr ) 101 ), 102 103 TP_fast_assign( 104 __entry->skbaddr = skb; 105 ), 106 107 TP_printk("skbaddr=%p", __entry->skbaddr) 108 ); 109 110 TRACE_EVENT(skb_copy_datagram_iovec, 111 112 TP_PROTO(const struct sk_buff *skb, int len), 113 114 TP_ARGS(skb, len), 115 116 TP_STRUCT__entry( 117 __field( const void *, skbaddr ) 118 __field( int, len ) 119 ), 120 121 TP_fast_assign( 122 __entry->skbaddr = skb; 123 __entry->len = len; 124 ), 125 126 TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len) 127 ); 128 129 #endif /* _TRACE_SKB_H */ 130 131 /* This part must be outside protection */ 132 #include <trace/define_trace.h> 133