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1/* SPDX-License-Identifier: GPL-2.0-only */
2/******************************************************************************
3 *
4 * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
5 * Copyright(C) 2016 Intel Deutschland GmbH
6 * Copyright(c) 2018 Intel Corporation
7 *****************************************************************************/
8
9#ifndef __IWLWIFI_DEVICE_TRACE
10#include <linux/skbuff.h>
11#include <linux/ieee80211.h>
12#include <net/cfg80211.h>
13#include "iwl-trans.h"
14#if !defined(__IWLWIFI_DEVICE_TRACE)
15static inline bool iwl_trace_data(struct sk_buff *skb)
16{
17 struct ieee80211_hdr *hdr = (void *)skb->data;
18 __le16 fc = hdr->frame_control;
19 int offs = 24; /* start with normal header length */
20
21 if (!ieee80211_is_data(fc))
22 return false;
23
24 /* Try to determine if the frame is EAPOL. This might have false
25 * positives (if there's no RFC 1042 header and we compare to some
26 * payload instead) but since we're only doing tracing that's not
27 * a problem.
28 */
29
30 if (ieee80211_has_a4(fc))
31 offs += 6;
32 if (ieee80211_is_data_qos(fc))
33 offs += 2;
34 /* don't account for crypto - these are unencrypted */
35
36 /* also account for the RFC 1042 header, of course */
37 offs += 6;
38
39 return skb->len <= offs + 2 ||
40 *(__be16 *)(skb->data + offs) != cpu_to_be16(ETH_P_PAE);
41}
42
43static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
44 void *rxbuf, size_t len,
45 size_t *out_hdr_offset)
46{
47 struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
48 struct ieee80211_hdr *hdr = NULL;
49 size_t hdr_offset;
50
51 if (cmd->cmd != trans->rx_mpdu_cmd)
52 return len;
53
54 hdr_offset = sizeof(struct iwl_cmd_header) +
55 trans->rx_mpdu_cmd_hdr_size;
56
57 if (out_hdr_offset)
58 *out_hdr_offset = hdr_offset;
59
60 hdr = (void *)((u8 *)cmd + hdr_offset);
61 if (!ieee80211_is_data(hdr->frame_control))
62 return len;
63 /* maybe try to identify EAPOL frames? */
64 return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
65 ieee80211_hdrlen(hdr->frame_control);
66}
67#endif
68
69#define __IWLWIFI_DEVICE_TRACE
70
71#include <linux/tracepoint.h>
72#include <linux/device.h>
73
74
75#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
76#undef TRACE_EVENT
77#define TRACE_EVENT(name, proto, ...) \
78static inline void trace_ ## name(proto) {}
79#undef DECLARE_EVENT_CLASS
80#define DECLARE_EVENT_CLASS(...)
81#undef DEFINE_EVENT
82#define DEFINE_EVENT(evt_class, name, proto, ...) \
83static inline void trace_ ## name(proto) {}
84#endif
85
86#define DEV_ENTRY __string(dev, dev_name(dev))
87#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
88
89#include "iwl-devtrace-io.h"
90#include "iwl-devtrace-ucode.h"
91#include "iwl-devtrace-msg.h"
92#include "iwl-devtrace-data.h"
93#include "iwl-devtrace-iwlwifi.h"
94
95#endif /* __IWLWIFI_DEVICE_TRACE */
1/******************************************************************************
2 *
3 * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
4 * Copyright(C) 2016 Intel Deutschland GmbH
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 *
19 * The full GNU General Public License is included in this distribution in the
20 * file called LICENSE.
21 *
22 * Contact Information:
23 * Intel Linux Wireless <linuxwifi@intel.com>
24 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *
26 *****************************************************************************/
27
28#ifndef __IWLWIFI_DEVICE_TRACE
29#include <linux/skbuff.h>
30#include <linux/ieee80211.h>
31#include <net/cfg80211.h>
32#include "iwl-trans.h"
33#if !defined(__IWLWIFI_DEVICE_TRACE)
34static inline bool iwl_trace_data(struct sk_buff *skb)
35{
36 struct ieee80211_hdr *hdr = (void *)skb->data;
37 __le16 fc = hdr->frame_control;
38 int offs = 24; /* start with normal header length */
39
40 if (!ieee80211_is_data(fc))
41 return false;
42
43 /* Try to determine if the frame is EAPOL. This might have false
44 * positives (if there's no RFC 1042 header and we compare to some
45 * payload instead) but since we're only doing tracing that's not
46 * a problem.
47 */
48
49 if (ieee80211_has_a4(fc))
50 offs += 6;
51 if (ieee80211_is_data_qos(fc))
52 offs += 2;
53 /* don't account for crypto - these are unencrypted */
54
55 /* also account for the RFC 1042 header, of course */
56 offs += 6;
57
58 return skb->len > offs + 2 &&
59 *(__be16 *)(skb->data + offs) == cpu_to_be16(ETH_P_PAE);
60}
61
62static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
63 void *rxbuf, size_t len)
64{
65 struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
66 struct ieee80211_hdr *hdr;
67
68 if (cmd->cmd != trans->rx_mpdu_cmd)
69 return len;
70
71 hdr = (void *)((u8 *)cmd + sizeof(struct iwl_cmd_header) +
72 trans->rx_mpdu_cmd_hdr_size);
73 if (!ieee80211_is_data(hdr->frame_control))
74 return len;
75 /* maybe try to identify EAPOL frames? */
76 return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
77 ieee80211_hdrlen(hdr->frame_control);
78}
79#endif
80
81#define __IWLWIFI_DEVICE_TRACE
82
83#include <linux/tracepoint.h>
84#include <linux/device.h>
85#include "iwl-trans.h"
86
87
88#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
89#undef TRACE_EVENT
90#define TRACE_EVENT(name, proto, ...) \
91static inline void trace_ ## name(proto) {}
92#undef DECLARE_EVENT_CLASS
93#define DECLARE_EVENT_CLASS(...)
94#undef DEFINE_EVENT
95#define DEFINE_EVENT(evt_class, name, proto, ...) \
96static inline void trace_ ## name(proto) {}
97#endif
98
99#define DEV_ENTRY __string(dev, dev_name(dev))
100#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
101
102#include "iwl-devtrace-io.h"
103#include "iwl-devtrace-ucode.h"
104#include "iwl-devtrace-msg.h"
105#include "iwl-devtrace-data.h"
106#include "iwl-devtrace-iwlwifi.h"
107
108#endif /* __IWLWIFI_DEVICE_TRACE */