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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 */ |