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@@ -1,359 +0,0 @@
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-/*
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- * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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- * All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License along
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- * with this program; if not, write to the Free Software Foundation, Inc.,
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- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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- *
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- *
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- * File: wpa2.c
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- *
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- * Purpose: Handles the Basic Service Set & Node Database functions
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- *
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- * Functions:
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- *
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- * Revision History:
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- *
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- * Author: Yiching Chen
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- *
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- * Date: Oct. 4, 2004
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- *
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- */
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-
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-#include "wpa2.h"
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-#include "device.h"
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-#include "wmgr.h"
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-
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-/*--------------------- Static Classes ----------------------------*/
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-
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-/*--------------------- Static Variables --------------------------*/
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-
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-static const unsigned char abyOUIGK[4] = { 0x00, 0x0F, 0xAC, 0x00 };
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-static const unsigned char abyOUIWEP40[4] = { 0x00, 0x0F, 0xAC, 0x01 };
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-static const unsigned char abyOUIWEP104[4] = { 0x00, 0x0F, 0xAC, 0x05 };
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-static const unsigned char abyOUITKIP[4] = { 0x00, 0x0F, 0xAC, 0x02 };
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-static const unsigned char abyOUICCMP[4] = { 0x00, 0x0F, 0xAC, 0x04 };
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-
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-static const unsigned char abyOUI8021X[4] = { 0x00, 0x0F, 0xAC, 0x01 };
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-static const unsigned char abyOUIPSK[4] = { 0x00, 0x0F, 0xAC, 0x02 };
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-
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-/*--------------------- Static Functions --------------------------*/
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-
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-/*--------------------- Export Variables --------------------------*/
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-
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-/*--------------------- Export Functions --------------------------*/
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-
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-/*+
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- *
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- * Description:
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- * Clear RSN information in BSSList.
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- *
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- * Parameters:
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- * In:
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- * pBSSNode - BSS list.
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- * Out:
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- * none
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- *
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- * Return Value: none.
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- *
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- -*/
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-void
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-WPA2_ClearRSN(
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- PKnownBSS pBSSNode
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-)
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-{
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- int ii;
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-
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- pBSSNode->bWPA2Valid = false;
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-
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- pBSSNode->byCSSGK = WLAN_11i_CSS_CCMP;
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- for (ii = 0; ii < 4; ii++)
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- pBSSNode->abyCSSPK[ii] = WLAN_11i_CSS_CCMP;
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- pBSSNode->wCSSPKCount = 1;
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- for (ii = 0; ii < 4; ii++)
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- pBSSNode->abyAKMSSAuthType[ii] = WLAN_11i_AKMSS_802_1X;
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- pBSSNode->wAKMSSAuthCount = 1;
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- pBSSNode->sRSNCapObj.bRSNCapExist = false;
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- pBSSNode->sRSNCapObj.wRSNCap = 0;
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-}
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-
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-/*+
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- *
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- * Description:
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- * Parse RSN IE.
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- *
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- * Parameters:
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- * In:
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- * pBSSNode - BSS list.
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- * pRSN - Pointer to the RSN IE.
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- * Out:
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- * none
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- *
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- * Return Value: none.
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- *
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- -*/
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-void
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-WPA2vParseRSN(
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- PKnownBSS pBSSNode,
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- PWLAN_IE_RSN pRSN
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-)
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-{
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- int i, j;
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- unsigned short m = 0, n = 0;
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- unsigned char *pbyOUI;
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- bool bUseGK = false;
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-
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- pr_debug("WPA2_ParseRSN: [%d]\n", pRSN->len);
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-
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- WPA2_ClearRSN(pBSSNode);
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-
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- if (pRSN->len == 2) { // ver(2)
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- if ((pRSN->byElementID == WLAN_EID_RSN) && (pRSN->wVersion == 1))
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- pBSSNode->bWPA2Valid = true;
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-
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- return;
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- }
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-
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- if (pRSN->len < 6) { // ver(2) + GK(4)
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- // invalid CSS, P802.11i/D10.0, p31
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- return;
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- }
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-
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- // information element header makes sense
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- if ((pRSN->byElementID == WLAN_EID_RSN) &&
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- (pRSN->wVersion == 1)) {
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- pr_debug("Legal 802.11i RSN\n");
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-
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- pbyOUI = &(pRSN->abyRSN[0]);
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- if (!memcmp(pbyOUI, abyOUIWEP40, 4))
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- pBSSNode->byCSSGK = WLAN_11i_CSS_WEP40;
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- else if (!memcmp(pbyOUI, abyOUITKIP, 4))
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- pBSSNode->byCSSGK = WLAN_11i_CSS_TKIP;
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- else if (!memcmp(pbyOUI, abyOUICCMP, 4))
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- pBSSNode->byCSSGK = WLAN_11i_CSS_CCMP;
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- else if (!memcmp(pbyOUI, abyOUIWEP104, 4))
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- pBSSNode->byCSSGK = WLAN_11i_CSS_WEP104;
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- else if (!memcmp(pbyOUI, abyOUIGK, 4)) {
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- // invalid CSS, P802.11i/D10.0, p32
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- return;
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- } else
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- // any vendor checks here
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- pBSSNode->byCSSGK = WLAN_11i_CSS_UNKNOWN;
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-
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- pr_debug("802.11i CSS: %X\n", pBSSNode->byCSSGK);
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-
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- if (pRSN->len == 6) {
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- pBSSNode->bWPA2Valid = true;
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- return;
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- }
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-
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- if (pRSN->len >= 8) { // ver(2) + GK(4) + PK count(2)
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- pBSSNode->wCSSPKCount = *((unsigned short *)&(pRSN->abyRSN[4]));
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- j = 0;
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- pbyOUI = &(pRSN->abyRSN[6]);
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-
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- for (i = 0; (i < pBSSNode->wCSSPKCount) && (j < sizeof(pBSSNode->abyCSSPK)/sizeof(unsigned char)); i++) {
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- if (pRSN->len >= 8+i*4+4) { // ver(2)+GK(4)+PKCnt(2)+PKS(4*i)
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- if (!memcmp(pbyOUI, abyOUIGK, 4)) {
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- pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_USE_GROUP;
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- bUseGK = true;
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- } else if (!memcmp(pbyOUI, abyOUIWEP40, 4)) {
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- // Invalid CSS, continue to parsing
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- } else if (!memcmp(pbyOUI, abyOUITKIP, 4)) {
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- if (pBSSNode->byCSSGK != WLAN_11i_CSS_CCMP)
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- pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_TKIP;
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- else
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- ; // Invalid CSS, continue to parsing
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- } else if (!memcmp(pbyOUI, abyOUICCMP, 4)) {
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- pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_CCMP;
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- } else if (!memcmp(pbyOUI, abyOUIWEP104, 4)) {
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- // Invalid CSS, continue to parsing
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- } else {
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- // any vendor checks here
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- pBSSNode->abyCSSPK[j++] = WLAN_11i_CSS_UNKNOWN;
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- }
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- pbyOUI += 4;
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- pr_debug("abyCSSPK[%d]: %X\n",
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- j-1, pBSSNode->abyCSSPK[j-1]);
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- } else
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- break;
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- } //for
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-
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- if (bUseGK) {
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- if (j != 1) {
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- // invalid CSS, This should be only PK CSS.
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- return;
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- }
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- if (pBSSNode->byCSSGK == WLAN_11i_CSS_CCMP) {
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- // invalid CSS, If CCMP is enable , PK can't be CSSGK.
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- return;
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- }
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- }
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- if ((pBSSNode->wCSSPKCount != 0) && (j == 0)) {
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- // invalid CSS, No valid PK.
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- return;
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- }
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- pBSSNode->wCSSPKCount = (unsigned short)j;
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- pr_debug("wCSSPKCount: %d\n", pBSSNode->wCSSPKCount);
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- }
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-
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- m = *((unsigned short *)&(pRSN->abyRSN[4]));
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-
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- if (pRSN->len >= 10+m*4) { // ver(2) + GK(4) + PK count(2) + PKS(4*m) + AKMSS count(2)
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- pBSSNode->wAKMSSAuthCount = *((unsigned short *)&(pRSN->abyRSN[6+4*m]));
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- j = 0;
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- pbyOUI = &(pRSN->abyRSN[8+4*m]);
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- for (i = 0; (i < pBSSNode->wAKMSSAuthCount) && (j < sizeof(pBSSNode->abyAKMSSAuthType)/sizeof(unsigned char)); i++) {
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- if (pRSN->len >= 10+(m+i)*4+4) { // ver(2)+GK(4)+PKCnt(2)+PKS(4*m)+AKMSS(2)+AKS(4*i)
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- if (!memcmp(pbyOUI, abyOUI8021X, 4))
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- pBSSNode->abyAKMSSAuthType[j++] = WLAN_11i_AKMSS_802_1X;
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- else if (!memcmp(pbyOUI, abyOUIPSK, 4))
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- pBSSNode->abyAKMSSAuthType[j++] = WLAN_11i_AKMSS_PSK;
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- else
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- // any vendor checks here
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- pBSSNode->abyAKMSSAuthType[j++] = WLAN_11i_AKMSS_UNKNOWN;
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- pr_debug("abyAKMSSAuthType[%d]: %X\n",
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- j-1,
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- pBSSNode->abyAKMSSAuthType[j-1]);
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- } else
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- break;
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- }
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- pBSSNode->wAKMSSAuthCount = (unsigned short)j;
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- pr_debug("wAKMSSAuthCount: %d\n",
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- pBSSNode->wAKMSSAuthCount);
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-
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- n = *((unsigned short *)&(pRSN->abyRSN[6+4*m]));
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- if (pRSN->len >= 12 + 4 * m + 4 * n) { // ver(2)+GK(4)+PKCnt(2)+PKS(4*m)+AKMSSCnt(2)+AKMSS(4*n)+Cap(2)
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- pBSSNode->sRSNCapObj.bRSNCapExist = true;
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- pBSSNode->sRSNCapObj.wRSNCap = *((unsigned short *)&(pRSN->abyRSN[8+4*m+4*n]));
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- }
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- }
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- //ignore PMKID lists bcs only (Re)Assocrequest has this field
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- pBSSNode->bWPA2Valid = true;
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- }
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-}
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-
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-/*+
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- *
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- * Description:
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- * Set WPA IEs
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- *
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- * Parameters:
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- * In:
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- * pMgmtHandle - Pointer to management object
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- * Out:
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- * pRSNIEs - Pointer to the RSN IE to set.
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- *
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- * Return Value: length of IEs.
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- *
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- -*/
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-unsigned int
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-WPA2uSetIEs(
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- void *pMgmtHandle,
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- PWLAN_IE_RSN pRSNIEs
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-)
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-{
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- PSMgmtObject pMgmt = (PSMgmtObject) pMgmtHandle;
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- unsigned char *pbyBuffer = NULL;
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- unsigned int ii = 0;
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- unsigned short *pwPMKID = NULL;
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-
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- if (pRSNIEs == NULL)
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- return 0;
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-
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- if (((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
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- (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) &&
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- (pMgmt->pCurrBSS != NULL)) {
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- /* WPA2 IE */
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- pbyBuffer = (unsigned char *)pRSNIEs;
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- pRSNIEs->byElementID = WLAN_EID_RSN;
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- pRSNIEs->len = 6; //Version(2)+GK(4)
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- pRSNIEs->wVersion = 1;
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- //Group Key Cipher Suite
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- pRSNIEs->abyRSN[0] = 0x00;
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- pRSNIEs->abyRSN[1] = 0x0F;
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- pRSNIEs->abyRSN[2] = 0xAC;
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- if (pMgmt->byCSSGK == KEY_CTL_WEP)
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- pRSNIEs->abyRSN[3] = pMgmt->pCurrBSS->byCSSGK;
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- else if (pMgmt->byCSSGK == KEY_CTL_TKIP)
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- pRSNIEs->abyRSN[3] = WLAN_11i_CSS_TKIP;
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- else if (pMgmt->byCSSGK == KEY_CTL_CCMP)
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- pRSNIEs->abyRSN[3] = WLAN_11i_CSS_CCMP;
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- else
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- pRSNIEs->abyRSN[3] = WLAN_11i_CSS_UNKNOWN;
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-
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- // Pairwise Key Cipher Suite
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- pRSNIEs->abyRSN[4] = 1;
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- pRSNIEs->abyRSN[5] = 0;
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- pRSNIEs->abyRSN[6] = 0x00;
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- pRSNIEs->abyRSN[7] = 0x0F;
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- pRSNIEs->abyRSN[8] = 0xAC;
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- if (pMgmt->byCSSPK == KEY_CTL_TKIP)
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- pRSNIEs->abyRSN[9] = WLAN_11i_CSS_TKIP;
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- else if (pMgmt->byCSSPK == KEY_CTL_CCMP)
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- pRSNIEs->abyRSN[9] = WLAN_11i_CSS_CCMP;
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- else if (pMgmt->byCSSPK == KEY_CTL_NONE)
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- pRSNIEs->abyRSN[9] = WLAN_11i_CSS_USE_GROUP;
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- else
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- pRSNIEs->abyRSN[9] = WLAN_11i_CSS_UNKNOWN;
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-
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- pRSNIEs->len += 6;
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-
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- // Auth Key Management Suite
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- pRSNIEs->abyRSN[10] = 1;
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- pRSNIEs->abyRSN[11] = 0;
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- pRSNIEs->abyRSN[12] = 0x00;
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- pRSNIEs->abyRSN[13] = 0x0F;
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- pRSNIEs->abyRSN[14] = 0xAC;
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- if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)
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- pRSNIEs->abyRSN[15] = WLAN_11i_AKMSS_PSK;
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- else if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2)
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- pRSNIEs->abyRSN[15] = WLAN_11i_AKMSS_802_1X;
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- else
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- pRSNIEs->abyRSN[15] = WLAN_11i_AKMSS_UNKNOWN;
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-
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- pRSNIEs->len += 6;
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-
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- // RSN Capabilities
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- if (pMgmt->pCurrBSS->sRSNCapObj.bRSNCapExist == true) {
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- memcpy(&pRSNIEs->abyRSN[16], &pMgmt->pCurrBSS->sRSNCapObj.wRSNCap, 2);
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- } else {
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- pRSNIEs->abyRSN[16] = 0;
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- pRSNIEs->abyRSN[17] = 0;
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- }
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- pRSNIEs->len += 2;
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-
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- if ((pMgmt->gsPMKIDCache.BSSIDInfoCount > 0) &&
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- pMgmt->bRoaming &&
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- (pMgmt->eAuthenMode == WMAC_AUTH_WPA2)) {
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- // RSN PMKID
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- pwPMKID = (unsigned short *)(&pRSNIEs->abyRSN[18]); // Point to PMKID count
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- *pwPMKID = 0; // Initialize PMKID count
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- pbyBuffer = &pRSNIEs->abyRSN[20]; // Point to PMKID list
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- for (ii = 0; ii < pMgmt->gsPMKIDCache.BSSIDInfoCount; ii++) {
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- if (!memcmp(&pMgmt->gsPMKIDCache.BSSIDInfo[ii].abyBSSID[0], pMgmt->abyCurrBSSID, ETH_ALEN)) {
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- (*pwPMKID)++;
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- memcpy(pbyBuffer, pMgmt->gsPMKIDCache.BSSIDInfo[ii].abyPMKID, 16);
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- pbyBuffer += 16;
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- }
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- }
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- if (*pwPMKID != 0)
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- pRSNIEs->len += (2 + (*pwPMKID)*16);
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- else
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|
|
- pbyBuffer = &pRSNIEs->abyRSN[18];
|
|
|
- }
|
|
|
- return pRSNIEs->len + WLAN_IEHDR_LEN;
|
|
|
- }
|
|
|
- return 0;
|
|
|
-}
|
Malcolm Priestley