tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
72TRACE_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 */
82TRACE_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
109TRACE_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
126TRACE_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>