1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/******************************************************************************
*
* Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
* Copyright(C) 2016 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <linuxwifi@intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#ifndef __IWLWIFI_DEVICE_TRACE
#include <linux/skbuff.h>
#include <linux/ieee80211.h>
#include <net/cfg80211.h>
#include "iwl-trans.h"
#if !defined(__IWLWIFI_DEVICE_TRACE)
static inline bool iwl_trace_data(struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (void *)skb->data;
__le16 fc = hdr->frame_control;
int offs = 24; /* start with normal header length */
if (!ieee80211_is_data(fc))
return false;
/* Try to determine if the frame is EAPOL. This might have false
* positives (if there's no RFC 1042 header and we compare to some
* payload instead) but since we're only doing tracing that's not
* a problem.
*/
if (ieee80211_has_a4(fc))
offs += 6;
if (ieee80211_is_data_qos(fc))
offs += 2;
/* don't account for crypto - these are unencrypted */
/* also account for the RFC 1042 header, of course */
offs += 6;
return skb->len > offs + 2 &&
*(__be16 *)(skb->data + offs) == cpu_to_be16(ETH_P_PAE);
}
static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
void *rxbuf, size_t len)
{
struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
struct ieee80211_hdr *hdr;
if (cmd->cmd != trans->rx_mpdu_cmd)
return len;
hdr = (void *)((u8 *)cmd + sizeof(struct iwl_cmd_header) +
trans->rx_mpdu_cmd_hdr_size);
if (!ieee80211_is_data(hdr->frame_control))
return len;
/* maybe try to identify EAPOL frames? */
return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
ieee80211_hdrlen(hdr->frame_control);
}
#endif
#define __IWLWIFI_DEVICE_TRACE
#include <linux/tracepoint.h>
#include <linux/device.h>
#include "iwl-trans.h"
#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
#undef TRACE_EVENT
#define TRACE_EVENT(name, proto, ...) \
static inline void trace_ ## name(proto) {}
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(...)
#undef DEFINE_EVENT
#define DEFINE_EVENT(evt_class, name, proto, ...) \
static inline void trace_ ## name(proto) {}
#endif
#define DEV_ENTRY __string(dev, dev_name(dev))
#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
#include "iwl-devtrace-io.h"
#include "iwl-devtrace-ucode.h"
#include "iwl-devtrace-msg.h"
#include "iwl-devtrace-data.h"
#include "iwl-devtrace-iwlwifi.h"
#endif /* __IWLWIFI_DEVICE_TRACE */
|
