4273a380f2
Based on 1 normalized pattern(s): 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 the full gnu general public license is included in this distribution in the file called license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 29 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000435.438503728@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/******************************************************************************
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*
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* Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved.
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* Copyright(C) 2016 Intel Deutschland GmbH
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* Copyright(c) 2018 Intel Corporation
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*
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* Contact Information:
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* Intel Linux Wireless <linuxwifi@intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#ifndef __IWLWIFI_DEVICE_TRACE
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#include <linux/skbuff.h>
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#include <linux/ieee80211.h>
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#include <net/cfg80211.h>
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#include "iwl-trans.h"
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#if !defined(__IWLWIFI_DEVICE_TRACE)
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static inline bool iwl_trace_data(struct sk_buff *skb)
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{
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struct ieee80211_hdr *hdr = (void *)skb->data;
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__le16 fc = hdr->frame_control;
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int offs = 24; /* start with normal header length */
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if (!ieee80211_is_data(fc))
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return false;
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/* Try to determine if the frame is EAPOL. This might have false
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* positives (if there's no RFC 1042 header and we compare to some
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* payload instead) but since we're only doing tracing that's not
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* a problem.
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*/
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if (ieee80211_has_a4(fc))
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offs += 6;
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if (ieee80211_is_data_qos(fc))
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offs += 2;
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/* don't account for crypto - these are unencrypted */
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/* also account for the RFC 1042 header, of course */
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offs += 6;
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return skb->len <= offs + 2 ||
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*(__be16 *)(skb->data + offs) != cpu_to_be16(ETH_P_PAE);
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}
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static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
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void *rxbuf, size_t len,
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size_t *out_hdr_offset)
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{
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struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
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struct ieee80211_hdr *hdr = NULL;
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size_t hdr_offset;
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if (cmd->cmd != trans->rx_mpdu_cmd)
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return len;
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hdr_offset = sizeof(struct iwl_cmd_header) +
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trans->rx_mpdu_cmd_hdr_size;
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if (out_hdr_offset)
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*out_hdr_offset = hdr_offset;
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hdr = (void *)((u8 *)cmd + hdr_offset);
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if (!ieee80211_is_data(hdr->frame_control))
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return len;
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/* maybe try to identify EAPOL frames? */
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return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
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ieee80211_hdrlen(hdr->frame_control);
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}
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#endif
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#define __IWLWIFI_DEVICE_TRACE
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#include <linux/tracepoint.h>
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#include <linux/device.h>
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#include "iwl-trans.h"
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#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
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#undef TRACE_EVENT
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#define TRACE_EVENT(name, proto, ...) \
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static inline void trace_ ## name(proto) {}
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(...)
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#undef DEFINE_EVENT
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#define DEFINE_EVENT(evt_class, name, proto, ...) \
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static inline void trace_ ## name(proto) {}
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#endif
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#define DEV_ENTRY __string(dev, dev_name(dev))
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#define DEV_ASSIGN __assign_str(dev, dev_name(dev))
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#include "iwl-devtrace-io.h"
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#include "iwl-devtrace-ucode.h"
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#include "iwl-devtrace-msg.h"
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#include "iwl-devtrace-data.h"
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#include "iwl-devtrace-iwlwifi.h"
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#endif /* __IWLWIFI_DEVICE_TRACE */
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