From: Koki Sanagi <sanagi.koki@jp•fujitsu.com>
To: netdev@vger•kernel.org, davem@davemloft•net, nhorman@tuxdriver•com
Cc: izumi.taku@jp•fujitsu.com, kaneshige.kenji@jp•fujitsu.com
Subject: [PATCH 3/5] tracing/events: add tracepoint to RAW protocol
Date: Mon, 18 Jan 2010 17:28:27 +0900 [thread overview]
Message-ID: <4B541BAB.600@jp.fujitsu.com> (raw)
This patch adds tracepoints at RAW protocol.
raw_sendmsg entry of RAW layer(transmit).
raw_rcv entry of RAW layer(receive).
Signed-off-by: Koki Sanagi <sanagi.koki@jp•fujitsu.com>
---
include/trace/events/skb.h | 40 ++++++++++++++++++++++++++++++++++++++++
net/ipv4/raw.c | 4 ++++
2 files changed, 44 insertions(+), 0 deletions(-)
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index a33893f..fbc25e8 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -154,6 +154,46 @@ TRACE_EVENT(ip_frag_reasm,
__entry->skbaddr, __entry->len)
);
+TRACE_EVENT(raw_sendmsg,
+
+ TP_PROTO(struct sock *sk, size_t len),
+
+ TP_ARGS(sk, len),
+
+ TP_STRUCT__entry(
+ __field( const void *, skaddr )
+ __field( size_t, len )
+ ),
+
+ TP_fast_assign(
+ __entry->skaddr = sk;
+ __entry->len = len;
+ ),
+
+ TP_printk("sk=%p len=%u",
+ __entry->skaddr, __entry->len)
+);
+
+TRACE_EVENT(raw_rcv,
+
+ TP_PROTO(struct sk_buff *skb),
+
+ TP_ARGS(skb),
+
+ TP_STRUCT__entry(
+ __field( const void *, skbaddr )
+ __field( unsigned int, len )
+ ),
+
+ TP_fast_assign(
+ __entry->skbaddr = skb;
+ __entry->len = skb->len;
+ ),
+
+ TP_printk("skbaddr=%p len=%u",
+ __entry->skbaddr, __entry->len)
+);
+
TRACE_EVENT(dev_queue_xmit,
TP_PROTO(struct sk_buff *skb,
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index ce154b4..1b2425a 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -77,6 +77,7 @@
#include <linux/seq_file.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
+#include <trace/events/skb.h>
static struct raw_hashinfo raw_v4_hashinfo = {
.lock = __RW_LOCK_UNLOCKED(raw_v4_hashinfo.lock),
@@ -301,6 +302,7 @@ static int raw_rcv_skb(struct sock * sk, struct sk_buff * skb)
int raw_rcv(struct sock *sk, struct sk_buff *skb)
{
+ trace_raw_rcv(skb);
if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
atomic_inc(&sk->sk_drops);
kfree_skb(skb);
@@ -354,6 +356,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
err = -EFAULT;
if (memcpy_fromiovecend((void *)iph, from, 0, length))
goto error_free;
+ trace_senddata_copy_skb(sk, skb, length);
iphlen = iph->ihl * 4;
@@ -459,6 +462,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
u8 tos;
int err;
+ trace_raw_sendmsg(sk, len);
err = -EMSGSIZE;
if (len > 0xFFFF)
goto out;
reply other threads:[~2010-01-18 8:28 UTC|newest]
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