372 lines
11 KiB
C
372 lines
11 KiB
C
/*
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* Copyright (c) 2012 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef FWEH_H_
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#define FWEH_H_
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#include <asm/unaligned.h>
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#include <linux/skbuff.h>
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#include <linux/if_ether.h>
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#include <linux/if.h>
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/* formward declarations */
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struct brcmf_pub;
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struct brcmf_if;
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struct brcmf_cfg80211_info;
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/* list of firmware events */
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#define BRCMF_FWEH_EVENT_ENUM_DEFLIST \
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BRCMF_ENUM_DEF(SET_SSID, 0) \
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BRCMF_ENUM_DEF(JOIN, 1) \
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BRCMF_ENUM_DEF(START, 2) \
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BRCMF_ENUM_DEF(AUTH, 3) \
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BRCMF_ENUM_DEF(AUTH_IND, 4) \
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BRCMF_ENUM_DEF(DEAUTH, 5) \
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BRCMF_ENUM_DEF(DEAUTH_IND, 6) \
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BRCMF_ENUM_DEF(ASSOC, 7) \
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BRCMF_ENUM_DEF(ASSOC_IND, 8) \
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BRCMF_ENUM_DEF(REASSOC, 9) \
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BRCMF_ENUM_DEF(REASSOC_IND, 10) \
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BRCMF_ENUM_DEF(DISASSOC, 11) \
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BRCMF_ENUM_DEF(DISASSOC_IND, 12) \
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BRCMF_ENUM_DEF(QUIET_START, 13) \
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BRCMF_ENUM_DEF(QUIET_END, 14) \
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BRCMF_ENUM_DEF(BEACON_RX, 15) \
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BRCMF_ENUM_DEF(LINK, 16) \
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BRCMF_ENUM_DEF(MIC_ERROR, 17) \
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BRCMF_ENUM_DEF(NDIS_LINK, 18) \
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BRCMF_ENUM_DEF(ROAM, 19) \
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BRCMF_ENUM_DEF(TXFAIL, 20) \
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BRCMF_ENUM_DEF(PMKID_CACHE, 21) \
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BRCMF_ENUM_DEF(RETROGRADE_TSF, 22) \
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BRCMF_ENUM_DEF(PRUNE, 23) \
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BRCMF_ENUM_DEF(AUTOAUTH, 24) \
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BRCMF_ENUM_DEF(EAPOL_MSG, 25) \
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BRCMF_ENUM_DEF(SCAN_COMPLETE, 26) \
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BRCMF_ENUM_DEF(ADDTS_IND, 27) \
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BRCMF_ENUM_DEF(DELTS_IND, 28) \
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BRCMF_ENUM_DEF(BCNSENT_IND, 29) \
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BRCMF_ENUM_DEF(BCNRX_MSG, 30) \
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BRCMF_ENUM_DEF(BCNLOST_MSG, 31) \
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BRCMF_ENUM_DEF(ROAM_PREP, 32) \
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BRCMF_ENUM_DEF(PFN_NET_FOUND, 33) \
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BRCMF_ENUM_DEF(PFN_NET_LOST, 34) \
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BRCMF_ENUM_DEF(RESET_COMPLETE, 35) \
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BRCMF_ENUM_DEF(JOIN_START, 36) \
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BRCMF_ENUM_DEF(ROAM_START, 37) \
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BRCMF_ENUM_DEF(ASSOC_START, 38) \
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BRCMF_ENUM_DEF(IBSS_ASSOC, 39) \
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BRCMF_ENUM_DEF(RADIO, 40) \
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BRCMF_ENUM_DEF(PSM_WATCHDOG, 41) \
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BRCMF_ENUM_DEF(PROBREQ_MSG, 44) \
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BRCMF_ENUM_DEF(SCAN_CONFIRM_IND, 45) \
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BRCMF_ENUM_DEF(PSK_SUP, 46) \
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BRCMF_ENUM_DEF(COUNTRY_CODE_CHANGED, 47) \
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BRCMF_ENUM_DEF(EXCEEDED_MEDIUM_TIME, 48) \
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BRCMF_ENUM_DEF(ICV_ERROR, 49) \
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BRCMF_ENUM_DEF(UNICAST_DECODE_ERROR, 50) \
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BRCMF_ENUM_DEF(MULTICAST_DECODE_ERROR, 51) \
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BRCMF_ENUM_DEF(TRACE, 52) \
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BRCMF_ENUM_DEF(IF, 54) \
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BRCMF_ENUM_DEF(P2P_DISC_LISTEN_COMPLETE, 55) \
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BRCMF_ENUM_DEF(RSSI, 56) \
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BRCMF_ENUM_DEF(EXTLOG_MSG, 58) \
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BRCMF_ENUM_DEF(ACTION_FRAME, 59) \
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BRCMF_ENUM_DEF(ACTION_FRAME_COMPLETE, 60) \
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BRCMF_ENUM_DEF(PRE_ASSOC_IND, 61) \
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BRCMF_ENUM_DEF(PRE_REASSOC_IND, 62) \
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BRCMF_ENUM_DEF(CHANNEL_ADOPTED, 63) \
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BRCMF_ENUM_DEF(AP_STARTED, 64) \
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BRCMF_ENUM_DEF(DFS_AP_STOP, 65) \
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BRCMF_ENUM_DEF(DFS_AP_RESUME, 66) \
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BRCMF_ENUM_DEF(ESCAN_RESULT, 69) \
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BRCMF_ENUM_DEF(ACTION_FRAME_OFF_CHAN_COMPLETE, 70) \
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BRCMF_ENUM_DEF(PROBERESP_MSG, 71) \
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BRCMF_ENUM_DEF(P2P_PROBEREQ_MSG, 72) \
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BRCMF_ENUM_DEF(DCS_REQUEST, 73) \
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BRCMF_ENUM_DEF(FIFO_CREDIT_MAP, 74) \
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BRCMF_ENUM_DEF(ACTION_FRAME_RX, 75) \
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BRCMF_ENUM_DEF(TDLS_PEER_EVENT, 92) \
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BRCMF_ENUM_DEF(BCMC_CREDIT_SUPPORT, 127)
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#define BRCMF_ENUM_DEF(id, val) \
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BRCMF_E_##id = (val),
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/* firmware event codes sent by the dongle */
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enum brcmf_fweh_event_code {
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BRCMF_FWEH_EVENT_ENUM_DEFLIST
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/* this determines event mask length which must match
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* minimum length check in device firmware so it is
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* hard-coded here.
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*/
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BRCMF_E_LAST = 139
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};
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#undef BRCMF_ENUM_DEF
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#define BRCMF_EVENTING_MASK_LEN DIV_ROUND_UP(BRCMF_E_LAST, 8)
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/* flags field values in struct brcmf_event_msg */
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#define BRCMF_EVENT_MSG_LINK 0x01
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#define BRCMF_EVENT_MSG_FLUSHTXQ 0x02
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#define BRCMF_EVENT_MSG_GROUP 0x04
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/* status field values in struct brcmf_event_msg */
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#define BRCMF_E_STATUS_SUCCESS 0
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#define BRCMF_E_STATUS_FAIL 1
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#define BRCMF_E_STATUS_TIMEOUT 2
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#define BRCMF_E_STATUS_NO_NETWORKS 3
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#define BRCMF_E_STATUS_ABORT 4
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#define BRCMF_E_STATUS_NO_ACK 5
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#define BRCMF_E_STATUS_UNSOLICITED 6
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#define BRCMF_E_STATUS_ATTEMPT 7
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#define BRCMF_E_STATUS_PARTIAL 8
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#define BRCMF_E_STATUS_NEWSCAN 9
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#define BRCMF_E_STATUS_NEWASSOC 10
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#define BRCMF_E_STATUS_11HQUIET 11
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#define BRCMF_E_STATUS_SUPPRESS 12
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#define BRCMF_E_STATUS_NOCHANS 13
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#define BRCMF_E_STATUS_CS_ABORT 15
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#define BRCMF_E_STATUS_ERROR 16
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/* status field values for PSK_SUP event */
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#define BRCMF_E_STATUS_FWSUP_WAIT_M1 4
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#define BRCMF_E_STATUS_FWSUP_PREP_M2 5
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#define BRCMF_E_STATUS_FWSUP_COMPLETED 6
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#define BRCMF_E_STATUS_FWSUP_TIMEOUT 7
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#define BRCMF_E_STATUS_FWSUP_WAIT_M3 8
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#define BRCMF_E_STATUS_FWSUP_PREP_M4 9
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#define BRCMF_E_STATUS_FWSUP_WAIT_G1 10
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#define BRCMF_E_STATUS_FWSUP_PREP_G2 11
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/* reason field values in struct brcmf_event_msg */
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#define BRCMF_E_REASON_INITIAL_ASSOC 0
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#define BRCMF_E_REASON_LOW_RSSI 1
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#define BRCMF_E_REASON_DEAUTH 2
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#define BRCMF_E_REASON_DISASSOC 3
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#define BRCMF_E_REASON_BCNS_LOST 4
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#define BRCMF_E_REASON_MINTXRATE 9
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#define BRCMF_E_REASON_TXFAIL 10
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#define BRCMF_E_REASON_LINK_BSSCFG_DIS 4
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#define BRCMF_E_REASON_FAST_ROAM_FAILED 5
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#define BRCMF_E_REASON_DIRECTED_ROAM 6
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#define BRCMF_E_REASON_TSPEC_REJECTED 7
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#define BRCMF_E_REASON_BETTER_AP 8
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#define BRCMF_E_REASON_TDLS_PEER_DISCOVERED 0
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#define BRCMF_E_REASON_TDLS_PEER_CONNECTED 1
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#define BRCMF_E_REASON_TDLS_PEER_DISCONNECTED 2
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/* reason field values for PSK_SUP event */
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#define BRCMF_E_REASON_FWSUP_OTHER 0
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#define BRCMF_E_REASON_FWSUP_DECRYPT_KEY_DATA 1
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#define BRCMF_E_REASON_FWSUP_BAD_UCAST_WEP128 2
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#define BRCMF_E_REASON_FWSUP_BAD_UCAST_WEP40 3
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#define BRCMF_E_REASON_FWSUP_UNSUP_KEY_LEN 4
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#define BRCMF_E_REASON_FWSUP_PW_KEY_CIPHER 5
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#define BRCMF_E_REASON_FWSUP_MSG3_TOO_MANY_IE 6
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#define BRCMF_E_REASON_FWSUP_MSG3_IE_MISMATCH 7
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#define BRCMF_E_REASON_FWSUP_NO_INSTALL_FLAG 8
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#define BRCMF_E_REASON_FWSUP_MSG3_NO_GTK 9
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#define BRCMF_E_REASON_FWSUP_GRP_KEY_CIPHER 10
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#define BRCMF_E_REASON_FWSUP_GRP_MSG1_NO_GTK 11
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#define BRCMF_E_REASON_FWSUP_GTK_DECRYPT_FAIL 12
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#define BRCMF_E_REASON_FWSUP_SEND_FAIL 13
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#define BRCMF_E_REASON_FWSUP_DEAUTH 14
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#define BRCMF_E_REASON_FWSUP_WPA_PSK_TMO 15
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#define BRCMF_E_REASON_FWSUP_WPA_PSK_M1_TMO 16
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#define BRCMF_E_REASON_FWSUP_WPA_PSK_M3_TMO 17
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/* action field values for brcmf_ifevent */
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#define BRCMF_E_IF_ADD 1
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#define BRCMF_E_IF_DEL 2
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#define BRCMF_E_IF_CHANGE 3
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/* flag field values for brcmf_ifevent */
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#define BRCMF_E_IF_FLAG_NOIF 1
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/* role field values for brcmf_ifevent */
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#define BRCMF_E_IF_ROLE_STA 0
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#define BRCMF_E_IF_ROLE_AP 1
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#define BRCMF_E_IF_ROLE_WDS 2
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#define BRCMF_E_IF_ROLE_P2P_GO 3
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#define BRCMF_E_IF_ROLE_P2P_CLIENT 4
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/**
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* definitions for event packet validation.
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*/
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#define BRCM_OUI "\x00\x10\x18"
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#define BCMILCP_BCM_SUBTYPE_EVENT 1
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#define BCMILCP_SUBTYPE_VENDOR_LONG 32769
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/**
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* struct brcm_ethhdr - broadcom specific ether header.
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*
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* @subtype: subtype for this packet.
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* @length: TODO: length of appended data.
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* @version: version indication.
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* @oui: OUI of this packet.
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* @usr_subtype: subtype for this OUI.
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*/
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struct brcm_ethhdr {
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__be16 subtype;
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__be16 length;
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u8 version;
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u8 oui[3];
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__be16 usr_subtype;
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} __packed;
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struct brcmf_event_msg_be {
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__be16 version;
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__be16 flags;
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__be32 event_type;
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__be32 status;
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__be32 reason;
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__be32 auth_type;
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__be32 datalen;
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u8 addr[ETH_ALEN];
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char ifname[IFNAMSIZ];
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u8 ifidx;
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u8 bsscfgidx;
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} __packed;
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/**
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* struct brcmf_event - contents of broadcom event packet.
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*
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* @eth: standard ether header.
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* @hdr: broadcom specific ether header.
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* @msg: common part of the actual event message.
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*/
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struct brcmf_event {
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struct ethhdr eth;
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struct brcm_ethhdr hdr;
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struct brcmf_event_msg_be msg;
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} __packed;
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/**
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* struct brcmf_event_msg - firmware event message.
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*
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* @version: version information.
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* @flags: event flags.
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* @event_code: firmware event code.
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* @status: status information.
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* @reason: reason code.
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* @auth_type: authentication type.
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* @datalen: lenght of event data buffer.
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* @addr: ether address.
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* @ifname: interface name.
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* @ifidx: interface index.
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* @bsscfgidx: bsscfg index.
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*/
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struct brcmf_event_msg {
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u16 version;
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u16 flags;
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u32 event_code;
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u32 status;
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u32 reason;
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s32 auth_type;
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u32 datalen;
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u8 addr[ETH_ALEN];
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char ifname[IFNAMSIZ];
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u8 ifidx;
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u8 bsscfgidx;
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};
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struct brcmf_if_event {
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u8 ifidx;
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u8 action;
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u8 flags;
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u8 bsscfgidx;
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u8 role;
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};
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typedef int (*brcmf_fweh_handler_t)(struct brcmf_if *ifp,
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const struct brcmf_event_msg *evtmsg,
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void *data);
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/**
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* struct brcmf_fweh_info - firmware event handling information.
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*
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* @p2pdev_setup_ongoing: P2P device creation in progress.
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* @event_work: event worker.
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* @evt_q_lock: lock for event queue protection.
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* @event_q: event queue.
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* @evt_handler: registered event handlers.
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*/
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struct brcmf_fweh_info {
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bool p2pdev_setup_ongoing;
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struct work_struct event_work;
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spinlock_t evt_q_lock;
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struct list_head event_q;
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int (*evt_handler[BRCMF_E_LAST])(struct brcmf_if *ifp,
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const struct brcmf_event_msg *evtmsg,
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void *data);
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};
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const char *brcmf_fweh_event_name(enum brcmf_fweh_event_code code);
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void brcmf_fweh_attach(struct brcmf_pub *drvr);
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void brcmf_fweh_detach(struct brcmf_pub *drvr);
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int brcmf_fweh_register(struct brcmf_pub *drvr, enum brcmf_fweh_event_code code,
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int (*handler)(struct brcmf_if *ifp,
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const struct brcmf_event_msg *evtmsg,
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void *data));
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void brcmf_fweh_unregister(struct brcmf_pub *drvr,
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enum brcmf_fweh_event_code code);
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int brcmf_fweh_activate_events(struct brcmf_if *ifp);
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void brcmf_fweh_process_event(struct brcmf_pub *drvr,
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struct brcmf_event *event_packet,
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u32 packet_len);
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void brcmf_fweh_p2pdev_setup(struct brcmf_if *ifp, bool ongoing);
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static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
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struct sk_buff *skb, u16 stype)
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{
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struct brcmf_event *event_packet;
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u16 subtype, usr_stype;
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/* only process events when protocol matches */
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if (skb->protocol != cpu_to_be16(ETH_P_LINK_CTL))
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return;
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if ((skb->len + ETH_HLEN) < sizeof(*event_packet))
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return;
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event_packet = (struct brcmf_event *)skb_mac_header(skb);
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/* check subtype if needed */
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if (unlikely(stype)) {
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subtype = get_unaligned_be16(&event_packet->hdr.subtype);
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if (subtype != stype)
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return;
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}
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/* check for BRCM oui match */
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if (memcmp(BRCM_OUI, &event_packet->hdr.oui[0],
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sizeof(event_packet->hdr.oui)))
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return;
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/* final match on usr_subtype */
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usr_stype = get_unaligned_be16(&event_packet->hdr.usr_subtype);
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if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT)
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return;
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brcmf_fweh_process_event(drvr, event_packet, skb->len + ETH_HLEN);
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}
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#endif /* FWEH_H_ */
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