288 lines
8.3 KiB
C
288 lines
8.3 KiB
C
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/*
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* bcmevent read-only data shared by kernel or app layers
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*
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* Copyright (C) 1999-2015, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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* $Id: bcmevent.c 492377 2014-07-21 19:54:06Z $
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*/
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#include <typedefs.h>
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#include <bcmutils.h>
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#include <bcmendian.h>
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#include <proto/ethernet.h>
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#include <proto/bcmeth.h>
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#include <proto/bcmevent.h>
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#include <proto/802.11.h>
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/* Table of event name strings for UIs and debugging dumps */
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typedef struct {
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uint event;
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const char *name;
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} bcmevent_name_str_t;
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/* Use the actual name for event tracing */
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#define BCMEVENT_NAME(_event) {(_event), #_event}
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static const bcmevent_name_str_t bcmevent_names[] = {
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BCMEVENT_NAME(WLC_E_SET_SSID),
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BCMEVENT_NAME(WLC_E_JOIN),
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BCMEVENT_NAME(WLC_E_START),
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BCMEVENT_NAME(WLC_E_AUTH),
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BCMEVENT_NAME(WLC_E_AUTH_IND),
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BCMEVENT_NAME(WLC_E_DEAUTH),
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BCMEVENT_NAME(WLC_E_DEAUTH_IND),
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BCMEVENT_NAME(WLC_E_ASSOC),
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BCMEVENT_NAME(WLC_E_ASSOC_IND),
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BCMEVENT_NAME(WLC_E_REASSOC),
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BCMEVENT_NAME(WLC_E_REASSOC_IND),
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BCMEVENT_NAME(WLC_E_DISASSOC),
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BCMEVENT_NAME(WLC_E_DISASSOC_IND),
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BCMEVENT_NAME(WLC_E_QUIET_START),
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BCMEVENT_NAME(WLC_E_QUIET_END),
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BCMEVENT_NAME(WLC_E_BEACON_RX),
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BCMEVENT_NAME(WLC_E_LINK),
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BCMEVENT_NAME(WLC_E_MIC_ERROR),
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BCMEVENT_NAME(WLC_E_NDIS_LINK),
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BCMEVENT_NAME(WLC_E_ROAM),
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BCMEVENT_NAME(WLC_E_TXFAIL),
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BCMEVENT_NAME(WLC_E_PMKID_CACHE),
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BCMEVENT_NAME(WLC_E_RETROGRADE_TSF),
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BCMEVENT_NAME(WLC_E_PRUNE),
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BCMEVENT_NAME(WLC_E_AUTOAUTH),
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BCMEVENT_NAME(WLC_E_EAPOL_MSG),
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BCMEVENT_NAME(WLC_E_SCAN_COMPLETE),
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BCMEVENT_NAME(WLC_E_ADDTS_IND),
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BCMEVENT_NAME(WLC_E_DELTS_IND),
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BCMEVENT_NAME(WLC_E_BCNSENT_IND),
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BCMEVENT_NAME(WLC_E_BCNRX_MSG),
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BCMEVENT_NAME(WLC_E_BCNLOST_MSG),
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BCMEVENT_NAME(WLC_E_ROAM_PREP),
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BCMEVENT_NAME(WLC_E_PFN_NET_FOUND),
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BCMEVENT_NAME(WLC_E_PFN_NET_LOST),
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#if defined(IBSS_PEER_DISCOVERY_EVENT)
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BCMEVENT_NAME(WLC_E_IBSS_ASSOC),
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#endif /* defined(IBSS_PEER_DISCOVERY_EVENT) */
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BCMEVENT_NAME(WLC_E_RADIO),
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BCMEVENT_NAME(WLC_E_PSM_WATCHDOG),
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BCMEVENT_NAME(WLC_E_PROBREQ_MSG),
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BCMEVENT_NAME(WLC_E_SCAN_CONFIRM_IND),
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BCMEVENT_NAME(WLC_E_PSK_SUP),
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BCMEVENT_NAME(WLC_E_COUNTRY_CODE_CHANGED),
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BCMEVENT_NAME(WLC_E_EXCEEDED_MEDIUM_TIME),
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BCMEVENT_NAME(WLC_E_ICV_ERROR),
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BCMEVENT_NAME(WLC_E_UNICAST_DECODE_ERROR),
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BCMEVENT_NAME(WLC_E_MULTICAST_DECODE_ERROR),
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BCMEVENT_NAME(WLC_E_TRACE),
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BCMEVENT_NAME(WLC_E_IF),
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#ifdef WLP2P
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BCMEVENT_NAME(WLC_E_P2P_DISC_LISTEN_COMPLETE),
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#endif
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BCMEVENT_NAME(WLC_E_RSSI),
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BCMEVENT_NAME(WLC_E_PFN_SCAN_COMPLETE),
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BCMEVENT_NAME(WLC_E_EXTLOG_MSG),
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#ifdef WIFI_ACT_FRAME
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BCMEVENT_NAME(WLC_E_ACTION_FRAME),
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BCMEVENT_NAME(WLC_E_ACTION_FRAME_RX),
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BCMEVENT_NAME(WLC_E_ACTION_FRAME_COMPLETE),
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#endif
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BCMEVENT_NAME(WLC_E_ESCAN_RESULT),
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BCMEVENT_NAME(WLC_E_ACTION_FRAME_OFF_CHAN_COMPLETE),
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#ifdef WLP2P
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BCMEVENT_NAME(WLC_E_PROBRESP_MSG),
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BCMEVENT_NAME(WLC_E_P2P_PROBREQ_MSG),
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#endif
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#ifdef PROP_TXSTATUS
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BCMEVENT_NAME(WLC_E_FIFO_CREDIT_MAP),
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#endif
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BCMEVENT_NAME(WLC_E_WAKE_EVENT),
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BCMEVENT_NAME(WLC_E_DCS_REQUEST),
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BCMEVENT_NAME(WLC_E_RM_COMPLETE),
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#ifdef WLMEDIA_HTSF
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BCMEVENT_NAME(WLC_E_HTSFSYNC),
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#endif
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BCMEVENT_NAME(WLC_E_OVERLAY_REQ),
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BCMEVENT_NAME(WLC_E_CSA_COMPLETE_IND),
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BCMEVENT_NAME(WLC_E_EXCESS_PM_WAKE_EVENT),
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BCMEVENT_NAME(WLC_E_PFN_SCAN_NONE),
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BCMEVENT_NAME(WLC_E_PFN_SCAN_ALLGONE),
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#ifdef SOFTAP
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BCMEVENT_NAME(WLC_E_GTK_PLUMBED),
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#endif
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BCMEVENT_NAME(WLC_E_ASSOC_REQ_IE),
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BCMEVENT_NAME(WLC_E_ASSOC_RESP_IE),
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BCMEVENT_NAME(WLC_E_BEACON_FRAME_RX),
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#ifdef WLTDLS
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BCMEVENT_NAME(WLC_E_TDLS_PEER_EVENT),
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#endif /* WLTDLS */
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BCMEVENT_NAME(WLC_E_NATIVE),
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#ifdef WLPKTDLYSTAT
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BCMEVENT_NAME(WLC_E_PKTDELAY_IND),
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#endif /* WLPKTDLYSTAT */
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BCMEVENT_NAME(WLC_E_SERVICE_FOUND),
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BCMEVENT_NAME(WLC_E_GAS_FRAGMENT_RX),
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BCMEVENT_NAME(WLC_E_GAS_COMPLETE),
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BCMEVENT_NAME(WLC_E_P2PO_ADD_DEVICE),
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BCMEVENT_NAME(WLC_E_P2PO_DEL_DEVICE),
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#ifdef WLWNM
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BCMEVENT_NAME(WLC_E_WNM_STA_SLEEP),
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#endif /* WLWNM */
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#if defined(WL_PROXDETECT)
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BCMEVENT_NAME(WLC_E_PROXD),
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#endif
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BCMEVENT_NAME(WLC_E_CCA_CHAN_QUAL),
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BCMEVENT_NAME(WLC_E_BSSID),
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#ifdef PROP_TXSTATUS
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BCMEVENT_NAME(WLC_E_BCMC_CREDIT_SUPPORT),
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#endif
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BCMEVENT_NAME(WLC_E_TXFAIL_THRESH),
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#ifdef WLBSSLOAD_REPORT
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BCMEVENT_NAME(WLC_E_BSS_LOAD),
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#endif
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#if defined(BT_WIFI_HANDOVER) || defined(WL_TBOW)
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BCMEVENT_NAME(WLC_E_BT_WIFI_HANDOVER_REQ),
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#endif
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BCMEVENT_NAME(WLC_E_RMC_EVENT),
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};
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const char *bcmevent_get_name(uint event_type)
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{
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/* note: first coded this as a static const but some
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* ROMs already have something called event_name so
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* changed it so we don't have a variable for the
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* 'unknown string
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*/
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const char *event_name = NULL;
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uint idx;
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for (idx = 0; idx < (uint)ARRAYSIZE(bcmevent_names); idx++) {
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if (bcmevent_names[idx].event == event_type) {
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event_name = bcmevent_names[idx].name;
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break;
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}
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}
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/* if we find an event name in the array, return it.
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* otherwise return unknown string.
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*/
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return ((event_name) ? event_name : "Unknown Event");
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}
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/*
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* Validate if the event is proper and if valid copy event header to event.
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* If proper event pointer is passed, to just validate, pass NULL to event.
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*
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* Return values are
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* BCME_OK - It is a BRCM event or BRCM dongle event
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* BCME_NOTFOUND - Not BRCM, not an event, may be okay
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* BCME_BADLEN - Bad length, should not process, just drop
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*/
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int
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is_wlc_event_frame(void *pktdata, uint pktlen, uint16 exp_usr_subtype,
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bcm_event_msg_u_t *out_event)
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{
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uint16 evlen;
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uint16 subtype;
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uint16 usr_subtype;
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bcm_event_t *bcm_event;
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uint8 *pktend;
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uint8 *evend;
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int err = BCME_OK;
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uint32 data_len;
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pktend = (uint8 *)pktdata + pktlen;
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bcm_event = (bcm_event_t *)pktdata;
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/* only care about 16-bit subtype / length versions */
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if ((uint8 *)&bcm_event->bcm_hdr < pktend) {
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uint8 short_subtype = *(uint8 *)&bcm_event->bcm_hdr;
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if (!(short_subtype & 0x80)) {
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err = BCME_NOTFOUND;
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goto done;
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}
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}
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/* must have both ether_header and bcmeth_hdr */
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if (pktlen < OFFSETOF(bcm_event_t, event)) {
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err = BCME_BADLEN;
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goto done;
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}
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/* check length in bcmeth_hdr */
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evlen = ntoh16_ua((void *)&bcm_event->bcm_hdr.length);
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evend = (uint8 *)&bcm_event->bcm_hdr.version + evlen;
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#ifdef EXT_STA
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if (evend != pktend) {
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err = BCME_BADLEN;
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goto done;
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}
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#endif /* EXT_STA */
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/* match on subtype, oui and usr subtype for BRCM events */
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subtype = ntoh16_ua((void *)&bcm_event->bcm_hdr.subtype);
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if (subtype != BCMILCP_SUBTYPE_VENDOR_LONG) {
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err = BCME_NOTFOUND;
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goto done;
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}
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if (bcmp(BRCM_OUI, &bcm_event->bcm_hdr.oui[0], DOT11_OUI_LEN)) {
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err = BCME_NOTFOUND;
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goto done;
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}
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/* if it is a bcm_event or bcm_dngl_event_t, validate it */
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usr_subtype = ntoh16_ua((void *)&bcm_event->bcm_hdr.usr_subtype);
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switch (usr_subtype) {
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case BCMILCP_BCM_SUBTYPE_EVENT:
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if ((pktlen < sizeof(bcm_event_t)) ||
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(evend < ((uint8 *)bcm_event + sizeof(bcm_event_t)))) {
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err = BCME_BADLEN;
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goto done;
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}
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data_len = ntoh32_ua((void *)&bcm_event->event.datalen);
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if ((sizeof(bcm_event_t) + data_len +
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BCMILCP_BCM_SUBTYPE_EVENT_DATA_PAD) != pktlen) {
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err = BCME_BADLEN;
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goto done;
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}
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if (exp_usr_subtype && (exp_usr_subtype != usr_subtype)) {
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err = BCME_NOTFOUND;
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goto done;
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}
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if (out_event) {
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/* ensure BRCM event pkt aligned */
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memcpy(&out_event->event, &bcm_event->event, sizeof(wl_event_msg_t));
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}
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break;
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default:
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err = BCME_NOTFOUND;
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goto done;
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}
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done:
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return err;
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}
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