/** @file supplicant.c
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*
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* @brief This file defines the API for supplicant
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*
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* Copyright (C) 2014-2017, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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/******************************************************
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Change log:
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03/07/2014: Initial version
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******************************************************/
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#include "wltypes.h"
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#include "keyMgmtSta.h"
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#include "keyCommonDef.h"
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#include "keyMgmtSta.h"
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#include "pmkCache.h"
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t_u8
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EAPoLKeyPkt_Validation(mlan_buffer *pmbuf)
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{
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t_u32 recvd_pkt_len, eapol_pkt_len;
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EAPOL_KeyMsg_t *pKeyMsg = NULL;
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pKeyMsg =
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(EAPOL_KeyMsg_t *)(pmbuf->pbuf + pmbuf->data_offset +
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sizeof(ether_hdr_t));
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/* Received eapol pkt length: DataLen - 802.3 header */
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recvd_pkt_len = pmbuf->data_len - sizeof(ether_hdr_t);
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/* 8021.X header + EAPOL key pkt header */
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eapol_pkt_len = sizeof(EAPOL_KeyMsg_t) - sizeof(pKeyMsg->key_data);
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if (recvd_pkt_len < eapol_pkt_len) {
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PRINTM(MERROR,
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"Invalid EAPOL Key Msg, received length: %u, least length: %u\n",
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recvd_pkt_len, eapol_pkt_len);
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return 1;
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}
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/* Todo: other validation check */
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return 0;
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}
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static __inline void
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ProcessEAPoLKeyPkt(phostsa_private priv, mlan_buffer *pmbuf,
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IEEEtypes_MacAddr_t *sa, IEEEtypes_MacAddr_t *da)
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{
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hostsa_mlan_fns *pm_fns = &priv->mlan_fns;
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t_u8 bss_role = pm_fns->Hostsa_get_bss_role(pm_fns->pmlan_private);
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PRINTM(MMSG, "ProcessEAPoLKeyPk bss_type=%x bss_role=%x\n",
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pm_fns->bss_type, bss_role);
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#ifdef MIB_STATS
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INC_MIB_STAT(connPtr, eapolRxForESUPPCnt);
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#endif
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if (EAPoLKeyPkt_Validation(pmbuf) != 0)
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return;
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switch (bss_role) {
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#ifdef BTAMP
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case CONNECTION_TYPE_BTAMP:
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ProcessKeyMgmtDataAmp(bufDesc);
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break;
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#endif
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case MLAN_BSS_ROLE_STA:
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/*key data */
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ProcessKeyMgmtDataSta(priv, pmbuf, sa, da);
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break;
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default:
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#ifdef AUTHENTICATOR
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if (WIFI_DIRECT_MODE_GO == connPtr->DeviceMode) {
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ProcessKeyMgmtDataAp(bufDesc);
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}
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#endif
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break;
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}
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}
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t_u8
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ProcessEAPoLPkt(void *priv, mlan_buffer *pmbuf)
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{
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phostsa_private psapriv = (phostsa_private)priv;
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ether_hdr_t *pEthHdr =
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(ether_hdr_t *)(pmbuf->pbuf + pmbuf->data_offset);
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EAP_PacketMsg_t *pEapPkt = NULL;
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UINT8 fPacketProcessed = 0;
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pEapPkt = (EAP_PacketMsg_t *)((t_u8 *)pEthHdr + sizeof(ether_hdr_t));
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switch (pEapPkt->hdr_8021x.pckt_type) {
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case IEEE_8021X_PACKET_TYPE_EAPOL_KEY:
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ProcessEAPoLKeyPkt(psapriv, pmbuf,
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(IEEEtypes_MacAddr_t *)pEthHdr->sa,
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(IEEEtypes_MacAddr_t *)pEthHdr->da);
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fPacketProcessed = 1;
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break;
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#if 0
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case IEEE_8021X_PACKET_TYPE_EAP_PACKET:
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{
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if (WIFI_DIRECT_MODE_CLIENT == connPtr->DeviceMode
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|| WIFI_DIRECT_MODE_DEVICE == connPtr->DeviceMode) {
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if (pEapPkt->code ==
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IEEE_8021X_CODE_TYPE_REQUEST) {
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assocAgent_eapRequestRx(sa);
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}
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}
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}
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break;
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#endif
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default:
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break;
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}
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// CLEAN_FLUSH_CACHED_SQMEM((UINT32)(pEapPkt), bufDesc->DataLen);
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return fPacketProcessed;
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}
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Status_e
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supplicantRestoreDefaults(void *priv)
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{
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pmkCacheInit(priv);
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return SUCCESS;
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}
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/* This can also be removed*/
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//#pragma arm section code = ".init"
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void
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supplicantFuncInit(void *priv)
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{
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supplicantRestoreDefaults(priv);
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}
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//#pragma arm section code
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//#endif /* PSK_SUPPLICANT */
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