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 EM(SKB_DROP_REASON_TC_EGRESS, TC_EGRESS) \ 49 EM(SKB_DROP_REASON_QDISC_DROP, QDISC_DROP) \ 50 EM(SKB_DROP_REASON_CPU_BACKLOG, CPU_BACKLOG) \ 51 EM(SKB_DROP_REASON_XDP, XDP) \ 52 EM(SKB_DROP_REASON_TC_INGRESS, TC_INGRESS) \ 53 EM(SKB_DROP_REASON_PTYPE_ABSENT, PTYPE_ABSENT) \ 54 EM(SKB_DROP_REASON_SKB_CSUM, SKB_CSUM) \ 55 EM(SKB_DROP_REASON_SKB_GSO_SEG, SKB_GSO_SEG) \ 56 EM(SKB_DROP_REASON_SKB_UCOPY_FAULT, SKB_UCOPY_FAULT) \ 57 EM(SKB_DROP_REASON_DEV_HDR, DEV_HDR) \ 58 EM(SKB_DROP_REASON_DEV_READY, DEV_READY) \ 59 EM(SKB_DROP_REASON_FULL_RING, FULL_RING) \ 60 EM(SKB_DROP_REASON_NOMEM, NOMEM) \ 61 EM(SKB_DROP_REASON_HDR_TRUNC, HDR_TRUNC) \ 62 EM(SKB_DROP_REASON_TAP_FILTER, TAP_FILTER) \ 63 EM(SKB_DROP_REASON_TAP_TXFILTER, TAP_TXFILTER) \ 64 EMe(SKB_DROP_REASON_MAX, MAX) 65 66 #undef EM 67 #undef EMe 68 69 #define EM(a, b) TRACE_DEFINE_ENUM(a); 70 #define EMe(a, b) TRACE_DEFINE_ENUM(a); 71 72 TRACE_SKB_DROP_REASON 73 74 #undef EM 75 #undef EMe 76 #define EM(a, b) { a, #b }, 77 #define EMe(a, b) { a, #b } 78 79 /* 80 * Tracepoint for free an sk_buff: 81 */ 82 TRACE_EVENT(kfree_skb, 83 84 TP_PROTO(struct sk_buff *skb, void *location, 85 enum skb_drop_reason reason), 86 87 TP_ARGS(skb, location, reason), 88 89 TP_STRUCT__entry( 90 __field(void *, skbaddr) 91 __field(void *, location) 92 __field(unsigned short, protocol) 93 __field(enum skb_drop_reason, reason) 94 ), 95 96 TP_fast_assign( 97 __entry->skbaddr = skb; 98 __entry->location = location; 99 __entry->protocol = ntohs(skb->protocol); 100 __entry->reason = reason; 101 ), 102 103 TP_printk("skbaddr=%p protocol=%u location=%p reason: %s", 104 __entry->skbaddr, __entry->protocol, __entry->location, 105 __print_symbolic(__entry->reason, 106 TRACE_SKB_DROP_REASON)) 107 ); 108 109 TRACE_EVENT(consume_skb, 110 111 TP_PROTO(struct sk_buff *skb), 112 113 TP_ARGS(skb), 114 115 TP_STRUCT__entry( 116 __field( void *, skbaddr ) 117 ), 118 119 TP_fast_assign( 120 __entry->skbaddr = skb; 121 ), 122 123 TP_printk("skbaddr=%p", __entry->skbaddr) 124 ); 125 126 TRACE_EVENT(skb_copy_datagram_iovec, 127 128 TP_PROTO(const struct sk_buff *skb, int len), 129 130 TP_ARGS(skb, len), 131 132 TP_STRUCT__entry( 133 __field( const void *, skbaddr ) 134 __field( int, len ) 135 ), 136 137 TP_fast_assign( 138 __entry->skbaddr = skb; 139 __entry->len = len; 140 ), 141 142 TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len) 143 ); 144 145 #endif /* _TRACE_SKB_H */ 146 147 /* This part must be outside protection */ 148 #include <trace/define_trace.h> 149