1/* SPDX-License-Identifier: GPL-2.0-only */
  2#undef TRACE_SYSTEM
  3#define TRACE_SYSTEM l2tp
  4
  5#if !defined(_TRACE_L2TP_H) || defined(TRACE_HEADER_MULTI_READ)
  6#define _TRACE_L2TP_H
  7
  8#include <linux/tracepoint.h>
  9#include <linux/l2tp.h>
 10#include "l2tp_core.h"
 11
 12#define encap_type_name(e) { L2TP_ENCAPTYPE_##e, #e }
 13#define show_encap_type_name(val) \
 14	__print_symbolic(val, \
 15			encap_type_name(UDP), \
 16			encap_type_name(IP))
 17
 18#define pw_type_name(p) { L2TP_PWTYPE_##p, #p }
 19#define show_pw_type_name(val) \
 20	__print_symbolic(val, \
 21	pw_type_name(ETH_VLAN), \
 22	pw_type_name(ETH), \
 23	pw_type_name(PPP), \
 24	pw_type_name(PPP_AC), \
 25	pw_type_name(IP))
 26
 27DECLARE_EVENT_CLASS(tunnel_only_evt,
 28	TP_PROTO(struct l2tp_tunnel *tunnel),
 29	TP_ARGS(tunnel),
 30	TP_STRUCT__entry(
 31		__array(char, name, L2TP_TUNNEL_NAME_MAX)
 32	),
 33	TP_fast_assign(
 34		memcpy(__entry->name, tunnel->name, L2TP_TUNNEL_NAME_MAX);
 35	),
 36	TP_printk("%s", __entry->name)
 37);
 38
 39DECLARE_EVENT_CLASS(session_only_evt,
 40	TP_PROTO(struct l2tp_session *session),
 41	TP_ARGS(session),
 42	TP_STRUCT__entry(
 43		__array(char, name, L2TP_SESSION_NAME_MAX)
 44	),
 45	TP_fast_assign(
 46		memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
 47	),
 48	TP_printk("%s", __entry->name)
 49);
 50
 51TRACE_EVENT(register_tunnel,
 52	TP_PROTO(struct l2tp_tunnel *tunnel),
 53	TP_ARGS(tunnel),
 54	TP_STRUCT__entry(
 55		__array(char, name, L2TP_TUNNEL_NAME_MAX)
 56		__field(int, fd)
 57		__field(u32, tid)
 58		__field(u32, ptid)
 59		__field(int, version)
 60		__field(enum l2tp_encap_type, encap)
 61	),
 62	TP_fast_assign(
 63		memcpy(__entry->name, tunnel->name, L2TP_TUNNEL_NAME_MAX);
 64		__entry->fd = tunnel->fd;
 65		__entry->tid = tunnel->tunnel_id;
 66		__entry->ptid = tunnel->peer_tunnel_id;
 67		__entry->version = tunnel->version;
 68		__entry->encap = tunnel->encap;
 69	),
 70	TP_printk("%s: type=%s encap=%s version=L2TPv%d tid=%u ptid=%u fd=%d",
 71		__entry->name,
 72		__entry->fd > 0 ? "managed" : "unmanaged",
 73		show_encap_type_name(__entry->encap),
 74		__entry->version,
 75		__entry->tid,
 76		__entry->ptid,
 77		__entry->fd)
 78);
 79
 80DEFINE_EVENT(tunnel_only_evt, delete_tunnel,
 81	TP_PROTO(struct l2tp_tunnel *tunnel),
 82	TP_ARGS(tunnel)
 83);
 84
 85DEFINE_EVENT(tunnel_only_evt, free_tunnel,
 86	TP_PROTO(struct l2tp_tunnel *tunnel),
 87	TP_ARGS(tunnel)
 88);
 89
 90TRACE_EVENT(register_session,
 91	TP_PROTO(struct l2tp_session *session),
 92	TP_ARGS(session),
 93	TP_STRUCT__entry(
 94		__array(char, name, L2TP_SESSION_NAME_MAX)
 95		__field(u32, tid)
 96		__field(u32, ptid)
 97		__field(u32, sid)
 98		__field(u32, psid)
 99		__field(enum l2tp_pwtype, pwtype)
100	),
101	TP_fast_assign(
102		memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
103		__entry->tid = session->tunnel ? session->tunnel->tunnel_id : 0;
104		__entry->ptid = session->tunnel ? session->tunnel->peer_tunnel_id : 0;
105		__entry->sid = session->session_id;
106		__entry->psid = session->peer_session_id;
107		__entry->pwtype = session->pwtype;
108	),
109	TP_printk("%s: pseudowire=%s sid=%u psid=%u tid=%u ptid=%u",
110		__entry->name,
111		show_pw_type_name(__entry->pwtype),
112		__entry->sid,
113		__entry->psid,
114		__entry->sid,
115		__entry->psid)
116);
117
118DEFINE_EVENT(session_only_evt, delete_session,
119	TP_PROTO(struct l2tp_session *session),
120	TP_ARGS(session)
121);
122
123DEFINE_EVENT(session_only_evt, free_session,
124	TP_PROTO(struct l2tp_session *session),
125	TP_ARGS(session)
126);
127
128DEFINE_EVENT(session_only_evt, session_seqnum_lns_enable,
129	TP_PROTO(struct l2tp_session *session),
130	TP_ARGS(session)
131);
132
133DEFINE_EVENT(session_only_evt, session_seqnum_lns_disable,
134	TP_PROTO(struct l2tp_session *session),
135	TP_ARGS(session)
136);
137
138DECLARE_EVENT_CLASS(session_seqnum_evt,
139	TP_PROTO(struct l2tp_session *session),
140	TP_ARGS(session),
141	TP_STRUCT__entry(
142		__array(char, name, L2TP_SESSION_NAME_MAX)
143		__field(u32, ns)
144		__field(u32, nr)
145	),
146	TP_fast_assign(
147		memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
148		__entry->ns = session->ns;
149		__entry->nr = session->nr;
150	),
151	TP_printk("%s: ns=%u nr=%u",
152		__entry->name,
153		__entry->ns,
154		__entry->nr)
155);
156
157DEFINE_EVENT(session_seqnum_evt, session_seqnum_update,
158	TP_PROTO(struct l2tp_session *session),
159	TP_ARGS(session)
160);
161
162DEFINE_EVENT(session_seqnum_evt, session_seqnum_reset,
163	TP_PROTO(struct l2tp_session *session),
164	TP_ARGS(session)
165);
166
167DECLARE_EVENT_CLASS(session_pkt_discard_evt,
168	TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
169	TP_ARGS(session, pkt_ns),
170	TP_STRUCT__entry(
171		__array(char, name, L2TP_SESSION_NAME_MAX)
172		__field(u32, pkt_ns)
173		__field(u32, my_nr)
174		__field(u32, reorder_q_len)
175	),
176	TP_fast_assign(
177		memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
178		__entry->pkt_ns = pkt_ns,
179		__entry->my_nr = session->nr;
180		__entry->reorder_q_len = skb_queue_len(&session->reorder_q);
181	),
182	TP_printk("%s: pkt_ns=%u my_nr=%u reorder_q_len=%u",
183		__entry->name,
184		__entry->pkt_ns,
185		__entry->my_nr,
186		__entry->reorder_q_len)
187);
188
189DEFINE_EVENT(session_pkt_discard_evt, session_pkt_expired,
190	TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
191	TP_ARGS(session, pkt_ns)
192);
193
194DEFINE_EVENT(session_pkt_discard_evt, session_pkt_outside_rx_window,
195	TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
196	TP_ARGS(session, pkt_ns)
197);
198
199DEFINE_EVENT(session_pkt_discard_evt, session_pkt_oos,
200	TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
201	TP_ARGS(session, pkt_ns)
202);
203
204#endif /* _TRACE_L2TP_H */
205
206/* This part must be outside protection */
207#undef TRACE_INCLUDE_PATH
208#define TRACE_INCLUDE_PATH .
209#undef TRACE_INCLUDE_FILE
210#define TRACE_INCLUDE_FILE trace
211#include <trace/define_trace.h>