path: root/fs/nfsd/trace.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2014 Christoph Hellwig.
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM nfsd

#if !defined(_NFSD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _NFSD_TRACE_H

#include <linux/tracepoint.h>
#include "export.h"
#include "nfsfh.h"

#define NFSD_TRACE_PROC_ARG_FIELDS \
		__field(unsigned int, netns_ino) \
		__field(u32, xid) \
		__array(unsigned char, server, sizeof(struct sockaddr_in6)) \
		__array(unsigned char, client, sizeof(struct sockaddr_in6))

#define NFSD_TRACE_PROC_ARG_ASSIGNMENTS \
		do { \
			__entry->netns_ino = SVC_NET(rqstp)->ns.inum; \
			__entry->xid = be32_to_cpu(rqstp->rq_xid); \
			memcpy(__entry->server, &rqstp->rq_xprt->xpt_local, \
			       rqstp->rq_xprt->xpt_locallen); \
			memcpy(__entry->client, &rqstp->rq_xprt->xpt_remote, \
			       rqstp->rq_xprt->xpt_remotelen); \
		} while (0);

#define NFSD_TRACE_PROC_RES_FIELDS \
		__field(unsigned int, netns_ino) \
		__field(u32, xid) \
		__field(unsigned long, status) \
		__array(unsigned char, server, sizeof(struct sockaddr_in6)) \
		__array(unsigned char, client, sizeof(struct sockaddr_in6))

#define NFSD_TRACE_PROC_RES_ASSIGNMENTS(error) \
		do { \
			__entry->netns_ino = SVC_NET(rqstp)->ns.inum; \
			__entry->xid = be32_to_cpu(rqstp->rq_xid); \
			__entry->status = be32_to_cpu(error); \
			memcpy(__entry->server, &rqstp->rq_xprt->xpt_local, \
			       rqstp->rq_xprt->xpt_locallen); \
			memcpy(__entry->client, &rqstp->rq_xprt->xpt_remote, \
			       rqstp->rq_xprt->xpt_remotelen); \
		} while (0);

TRACE_EVENT(nfsd_garbage_args_err,
	TP_PROTO(
		const struct svc_rqst *rqstp
	),
	TP_ARGS(rqstp),
	TP_STRUCT__entry(
		NFSD_TRACE_PROC_ARG_FIELDS

		__field(u32, vers)
		__field(u32, proc)
	),
	TP_fast_assign(
		NFSD_TRACE_PROC_ARG_ASSIGNMENTS

		__entry->vers = rqstp->rq_vers;
		__entry->proc = rqstp->rq_proc;
	),
	TP_printk("xid=0x%08x vers=%u proc=%u",
		__entry->xid, __entry->vers, __entry->proc
	)
);

TRACE_EVENT(nfsd_cant_encode_err,
	TP_PROTO(
		const struct svc_rqst *rqstp
	),
	TP_ARGS(rqstp),
	TP_STRUCT__entry(
		NFSD_TRACE_PROC_ARG_FIELDS

		__field(u32, vers)
		__field(u32, proc)
	),
	TP_fast_assign(
		NFSD_TRACE_PROC_ARG_ASSIGNMENTS

		__entry->vers = rqstp->rq_vers;
		__entry->proc = rqstp->rq_proc;
	),
	TP_printk("xid=0x%08x vers=%u proc=%u",
		__entry->xid, __entry->vers, __entry->proc
	)
);

#define show_nfsd_may_flags(x)						\
	__print_flags(x, "|",						\
		{ NFSD_MAY_EXEC,		"EXEC" },		\
		{ NFSD_MAY_WRITE,		"WRITE" },		\
		{ NFSD_MAY_READ,		"READ" },		\
		{ NFSD_MAY_SATTR,		"SATTR" },		\
		{ NFSD_MAY_TRUNC,		"TRUNC" },		\
		{ NFSD_MAY_LOCK,		"LOCK" },		\
		{ NFSD_MAY_OWNER_OVERRIDE,	"OWNER_OVERRIDE" },	\
		{ NFSD_MAY_LOCAL_ACCESS,	"LOCAL_ACCESS" },	\
		{ NFSD_MAY_BYPASS_GSS_ON_ROOT,	"BYPASS_GSS_ON_ROOT" },	\
		{ NFSD_MAY_NOT_BREAK_LEASE,	"NOT_BREAK_LEASE" },	\
		{ NFSD_MAY_BYPASS_GSS,		"BYPASS_GSS" },		\
		{ NFSD_MAY_READ_IF_EXEC,	"READ_IF_EXEC" },	\
		{ NFSD_MAY_64BIT_COOKIE,	"64BIT_COOKIE" })

TRACE_EVENT(nfsd_compound,
	TP_PROTO(const struct svc_rqst *rqst,
		 u32 args_opcnt),
	TP_ARGS(rqst, args_opcnt),
	TP_STRUCT__entry(
		__field(u32, xid)
		__field(u32, args_opcnt)
	),
	TP_fast_assign(
		__entry->xid = be32_to_cpu(rqst->rq_xid);
		__entry->args_opcnt = args_opcnt;
	),
	TP_printk("xid=0x%08x opcnt=%u",
		__entry->xid, __entry->args_opcnt)
)

TRACE_EVENT(nfsd_compound_status,
	TP_PROTO(u32 args_opcnt,
		 u32 resp_opcnt,
		 __be32 status,
		 const char *name),
	TP_ARGS(args_opcnt, resp_opcnt, status, name),
	TP_STRUCT__entry(
		__field(u32, args_opcnt)
		__field(u32, resp_opcnt)
		__field(int, status)
		__string(name, name)
	),
	TP_fast_assign(
		__entry->args_opcnt = args_opcnt;
		__entry->resp_opcnt = resp_opcnt;
		__entry->status = be32_to_cpu(status);
		__assign_str(name, name);
	),
	TP_printk("op=%u/%u %s status=%d",
		__entry->resp_opcnt, __entry->args_opcnt,
		__get_str(name), __entry->status)
)

TRACE_EVENT(nfsd_compound_decode_err,
	TP_PROTO(
		const struct svc_rqst *rqstp,
		u32 args_opcnt,
		u32 resp_opcnt,
		u32 opnum,
		__be32 status
	),
	TP_ARGS(rqstp, args_opcnt, resp_opcnt, opnum, status),
	TP_STRUCT__entry(
		NFSD_TRACE_PROC_RES_FIELDS

		__field(u32, args_opcnt)
		__field(u32, resp_opcnt)
		__field(u32, opnum)
	),
	TP_fast_assign(
		NFSD_TRACE_PROC_RES_ASSIGNMENTS(status)

		__entry->args_opcnt = args_opcnt;
		__entry->resp_opcnt = resp_opcnt;
		__entry->opnum = opnum;
	),
	TP_printk("op=%u/%u opnum=%u status=%lu",
		__entry->resp_opcnt, __entry->args_opcnt,
		__entry->opnum, __entry->status)
);

TRACE_EVENT(nfsd_compound_encode_err,
	TP_PROTO(
		const struct svc_rqst *rqstp,
		u32 opnum,
		__be32 status
	),
	TP_ARGS(rqstp, opnum, status),
	TP_STRUCT__entry(
		NFSD_TRACE_PROC_RES_FIELDS

		__field(u32, opnum)
	),
	TP_fast_assign(
		NFSD_TRACE_PROC_RES_ASSIGNMENTS(status)

		__entry->opnum = opnum;
	),
	TP_printk("opnum=%u status=%lu",
		__entry->opnum, __entry->status)
);


DECLARE_EVENT_CLASS(nfsd_fh_err_class,
	TP_PROTO(struct svc_rqst *rqstp,
		 struct svc_fh	*fhp,
		 int		status),
	TP_ARGS(rqstp, fhp, status),
	TP_STRUCT__entry(
		__field(u32, xid)
		__field(u32, fh_hash)
		__field(int, status)
	),
	TP_fast_assign(
		__entry->xid = be32_to_cpu(rqstp