netdev - [patch 2.6.31 02/10] wimax/i2400m: trace commands sent from user space on the "echo" pipe

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 28 May 2009 18:12:06 -0700
From:	Inaky Perez-Gonzalez <inaky@...ux.intel.com>
To:	netdev@...r.kernel.org, wimax@...uxwimax.org
Subject: [patch 2.6.31 02/10] wimax/i2400m: trace commands sent from user space on the "echo" pipe

When commands are sent from user space, trace both the command sent
and the answer received over the "echo" pipe instead of over the
"trace" pipe when command tracing is enabled. As well, when the device
sends a reports/indications, send it over the "echo" pipe.

The "trace" pipe is used by the device to send firmware traces;
gets confusing. Another named pipe makes it easier to split debug
information.

Signed-off-by: Inaky Perez-Gonzalez <inaky@...ux.intel.com>
---
 drivers/net/wimax/i2400m/driver.c |   13 ++++++++++---
 drivers/net/wimax/i2400m/rx.c     |    3 +++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c
index a21318b..d33389f 100644
--- a/drivers/net/wimax/i2400m/driver.c
+++ b/drivers/net/wimax/i2400m/driver.c
@@ -231,13 +231,20 @@ int i2400m_op_msg_from_user(struct wimax_dev *wimax_dev,
 	d_fnstart(4, dev, "(wimax_dev %p [i2400m %p] msg_buf %p "
 		  "msg_len %zu genl_info %p)\n", wimax_dev, i2400m,
 		  msg_buf, msg_len, genl_info);
+	if (unlikely(i2400m->trace_msg_from_user))
+		wimax_msg(&i2400m->wimax_dev, "echo",
+			  msg_buf, msg_len, GFP_KERNEL);
 	ack_skb = i2400m_msg_to_dev(i2400m, msg_buf, msg_len);
 	result = PTR_ERR(ack_skb);
 	if (IS_ERR(ack_skb))
 		goto error_msg_to_dev;
-	if (unlikely(i2400m->trace_msg_from_user))
-		wimax_msg(&i2400m->wimax_dev, "trace",
-			  msg_buf, msg_len, GFP_KERNEL);
+	if (unlikely(i2400m->trace_msg_from_user)) {
+		const void *ack_data;
+		size_t ack_len;
+		ack_data = wimax_msg_data_len(ack_skb, &ack_len);
+		wimax_msg(&i2400m->wimax_dev, "echo",
+			  ack_data, ack_len, GFP_KERNEL);
+	}
 	result = wimax_msg_send(&i2400m->wimax_dev, ack_skb);
 error_msg_to_dev:
 	d_fnend(4, dev, "(wimax_dev %p [i2400m %p] msg_buf %p msg_len %zu "
diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
index f9fc389..a4adc78 100644
--- a/drivers/net/wimax/i2400m/rx.c
+++ b/drivers/net/wimax/i2400m/rx.c
@@ -309,6 +309,9 @@ void i2400m_rx_ctl(struct i2400m *i2400m, struct sk_buff *skb_rx,
 		skb_get(skb_rx);
 		i2400m_queue_work(i2400m, i2400m_report_hook_work,
 				  GFP_KERNEL, &args, sizeof(args));
+		if (unlikely(i2400m->trace_msg_from_user))
+			wimax_msg(&i2400m->wimax_dev, "echo",
+				  l3l4_hdr, size, GFP_KERNEL);
 		result = wimax_msg(&i2400m->wimax_dev, NULL, l3l4_hdr, size,
 				   GFP_KERNEL);
 		if (result < 0)
-- 
1.6.2.3

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html