mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2024-12-28 16:53:49 +00:00
l2tp: add tracepoint definitions in trace.h
l2tp can provide a better debug experience using tracepoints rather than printk-style logging. Add tracepoint definitions in trace.h for use in the l2tp subsystem code. Add preprocessor definitions for the length of session and tunnel names in l2tp_core.h so we can reuse these in trace.h. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Parkin
David S. Miller
parent
3f117d6f4b
commit
2a03dd8e11
@ -66,6 +66,7 @@ struct l2tp_session_cfg {
|
||||
* Is linked into a per-tunnel session hashlist; and in the case of an L2TPv3 session into
|
||||
* an additional per-net ("global") hashlist.
|
||||
*/
|
||||
#define L2TP_SESSION_NAME_MAX 32
|
||||
struct l2tp_session {
|
||||
int magic; /* should be L2TP_SESSION_MAGIC */
|
||||
long dead;
|
||||
@ -90,7 +91,7 @@ struct l2tp_session {
|
||||
struct hlist_node hlist; /* hash list node */
|
||||
refcount_t ref_count;
|
||||
|
||||
char name[32]; /* for logging */
|
||||
char name[L2TP_SESSION_NAME_MAX]; /* for logging */
|
||||
char ifname[IFNAMSIZ];
|
||||
unsigned int recv_seq:1; /* expect receive packets with sequence numbers? */
|
||||
unsigned int send_seq:1; /* send packets with sequence numbers? */
|
||||
@ -154,6 +155,7 @@ struct l2tp_tunnel_cfg {
|
||||
* Maintains a hashlist of sessions belonging to the tunnel instance.
|
||||
* Is linked into a per-net list of tunnels.
|
||||
*/
|
||||
#define L2TP_TUNNEL_NAME_MAX 20
|
||||
struct l2tp_tunnel {
|
||||
int magic; /* Should be L2TP_TUNNEL_MAGIC */
|
||||
|
||||
@ -170,7 +172,7 @@ struct l2tp_tunnel {
|
||||
u32 peer_tunnel_id;
|
||||
int version; /* 2=>L2TPv2, 3=>L2TPv3 */
|
||||
|
||||
char name[20]; /* for logging */
|
||||
char name[L2TP_TUNNEL_NAME_MAX]; /* for logging */
|
||||
int debug; /* bitmask of debug message categories */
|
||||
enum l2tp_encap_type encap;
|
||||
struct l2tp_stats stats;
|
||||
|
||||
196
net/l2tp/trace.h
196
net/l2tp/trace.h
@ -5,6 +5,202 @@
|
||||
#if !defined(_TRACE_L2TP_H) || defined(TRACE_HEADER_MULTI_READ)
|
||||
#define _TRACE_L2TP_H
|
||||
|
||||
#include <linux/tracepoint.h>
|
||||
#include <linux/l2tp.h>
|
||||
#include "l2tp_core.h"
|
||||
|
||||
#define encap_type_name(e) { L2TP_ENCAPTYPE_##e, #e }
|
||||
#define show_encap_type_name(val) \
|
||||
__print_symbolic(val, \
|
||||
encap_type_name(UDP), \
|
||||
encap_type_name(IP))
|
||||
|
||||
#define pw_type_name(p) { L2TP_PWTYPE_##p, #p }
|
||||
#define show_pw_type_name(val) \
|
||||
__print_symbolic(val, \
|
||||
pw_type_name(ETH_VLAN), \
|
||||
pw_type_name(ETH), \
|
||||
pw_type_name(PPP), \
|
||||
pw_type_name(PPP_AC), \
|
||||
pw_type_name(IP))
|
||||
|
||||
DECLARE_EVENT_CLASS(tunnel_only_evt,
|
||||
TP_PROTO(struct l2tp_tunnel *tunnel),
|
||||
TP_ARGS(tunnel),
|
||||
TP_STRUCT__entry(
|
||||
__array(char, name, L2TP_TUNNEL_NAME_MAX)
|
||||
),
|
||||
TP_fast_assign(
|
||||
memcpy(__entry->name, tunnel->name, L2TP_TUNNEL_NAME_MAX);
|
||||
),
|
||||
TP_printk("%s", __entry->name)
|
||||
);
|
||||
|
||||
DECLARE_EVENT_CLASS(session_only_evt,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session),
|
||||
TP_STRUCT__entry(
|
||||
__array(char, name, L2TP_SESSION_NAME_MAX)
|
||||
),
|
||||
TP_fast_assign(
|
||||
memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
|
||||
),
|
||||
TP_printk("%s", __entry->name)
|
||||
);
|
||||
|
||||
TRACE_EVENT(register_tunnel,
|
||||
TP_PROTO(struct l2tp_tunnel *tunnel),
|
||||
TP_ARGS(tunnel),
|
||||
TP_STRUCT__entry(
|
||||
__array(char, name, L2TP_TUNNEL_NAME_MAX)
|
||||
__field(int, fd)
|
||||
__field(u32, tid)
|
||||
__field(u32, ptid)
|
||||
__field(int, version)
|
||||
__field(enum l2tp_encap_type, encap)
|
||||
),
|
||||
TP_fast_assign(
|
||||
memcpy(__entry->name, tunnel->name, L2TP_TUNNEL_NAME_MAX);
|
||||
__entry->fd = tunnel->fd;
|
||||
__entry->tid = tunnel->tunnel_id;
|
||||
__entry->ptid = tunnel->peer_tunnel_id;
|
||||
__entry->version = tunnel->version;
|
||||
__entry->encap = tunnel->encap;
|
||||
),
|
||||
TP_printk("%s: type=%s encap=%s version=L2TPv%d tid=%u ptid=%u fd=%d",
|
||||
__entry->name,
|
||||
__entry->fd > 0 ? "managed" : "unmanaged",
|
||||
show_encap_type_name(__entry->encap),
|
||||
__entry->version,
|
||||
__entry->tid,
|
||||
__entry->ptid,
|
||||
__entry->fd)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(tunnel_only_evt, delete_tunnel,
|
||||
TP_PROTO(struct l2tp_tunnel *tunnel),
|
||||
TP_ARGS(tunnel)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(tunnel_only_evt, free_tunnel,
|
||||
TP_PROTO(struct l2tp_tunnel *tunnel),
|
||||
TP_ARGS(tunnel)
|
||||
);
|
||||
|
||||
TRACE_EVENT(register_session,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session),
|
||||
TP_STRUCT__entry(
|
||||
__array(char, name, L2TP_SESSION_NAME_MAX)
|
||||
__field(u32, tid)
|
||||
__field(u32, ptid)
|
||||
__field(u32, sid)
|
||||
__field(u32, psid)
|
||||
__field(enum l2tp_pwtype, pwtype)
|
||||
),
|
||||
TP_fast_assign(
|
||||
memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
|
||||
__entry->tid = session->tunnel ? session->tunnel->tunnel_id : 0;
|
||||
__entry->ptid = session->tunnel ? session->tunnel->peer_tunnel_id : 0;
|
||||
__entry->sid = session->session_id;
|
||||
__entry->psid = session->peer_session_id;
|
||||
__entry->pwtype = session->pwtype;
|
||||
),
|
||||
TP_printk("%s: pseudowire=%s sid=%u psid=%u tid=%u ptid=%u",
|
||||
__entry->name,
|
||||
show_pw_type_name(__entry->pwtype),
|
||||
__entry->sid,
|
||||
__entry->psid,
|
||||
__entry->sid,
|
||||
__entry->psid)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_only_evt, delete_session,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_only_evt, free_session,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_only_evt, session_seqnum_lns_enable,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_only_evt, session_seqnum_lns_disable,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session)
|
||||
);
|
||||
|
||||
DECLARE_EVENT_CLASS(session_seqnum_evt,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session),
|
||||
TP_STRUCT__entry(
|
||||
__array(char, name, L2TP_SESSION_NAME_MAX)
|
||||
__field(u32, ns)
|
||||
__field(u32, nr)
|
||||
),
|
||||
TP_fast_assign(
|
||||
memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
|
||||
__entry->ns = session->ns;
|
||||
__entry->nr = session->nr;
|
||||
),
|
||||
TP_printk("%s: ns=%u nr=%u",
|
||||
__entry->name,
|
||||
__entry->ns,
|
||||
__entry->nr)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_seqnum_evt, session_seqnum_update,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_seqnum_evt, session_seqnum_reset,
|
||||
TP_PROTO(struct l2tp_session *session),
|
||||
TP_ARGS(session)
|
||||
);
|
||||
|
||||
DECLARE_EVENT_CLASS(session_pkt_discard_evt,
|
||||
TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
|
||||
TP_ARGS(session, pkt_ns),
|
||||
TP_STRUCT__entry(
|
||||
__array(char, name, L2TP_SESSION_NAME_MAX)
|
||||
__field(u32, pkt_ns)
|
||||
__field(u32, my_nr)
|
||||
__field(u32, reorder_q_len)
|
||||
),
|
||||
TP_fast_assign(
|
||||
memcpy(__entry->name, session->name, L2TP_SESSION_NAME_MAX);
|
||||
__entry->pkt_ns = pkt_ns,
|
||||
__entry->my_nr = session->nr;
|
||||
__entry->reorder_q_len = skb_queue_len(&session->reorder_q);
|
||||
),
|
||||
TP_printk("%s: pkt_ns=%u my_nr=%u reorder_q_len=%u",
|
||||
__entry->name,
|
||||
__entry->pkt_ns,
|
||||
__entry->my_nr,
|
||||
__entry->reorder_q_len)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_pkt_discard_evt, session_pkt_expired,
|
||||
TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
|
||||
TP_ARGS(session, pkt_ns)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_pkt_discard_evt, session_pkt_outside_rx_window,
|
||||
TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
|
||||
TP_ARGS(session, pkt_ns)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(session_pkt_discard_evt, session_pkt_oos,
|
||||
TP_PROTO(struct l2tp_session *session, u32 pkt_ns),
|
||||
TP_ARGS(session, pkt_ns)
|
||||
);
|
||||
|
||||
#endif /* _TRACE_L2TP_H */
|
||||
|
||||
/* This part must be outside protection */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user