mirror of
https://github.com/drasko/open-ameba.git
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342 lines
11 KiB
C
342 lines
11 KiB
C
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/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#ifndef _RTW_PSK_H_
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#define _RTW_PSK_H_
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#define GMK_LEN 32
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#define GTK_LEN 32
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#define PMK_LEN 32
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#define KEY_NONCE_LEN 32
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#define NumGroupKey 4
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#define KEY_RC_LEN 8
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#define KEY_IV_LEN 16
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#define KEY_RSC_LEN 8
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#define KEY_ID_LEN 8
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#define KEY_MIC_LEN 16
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#define KEY_MATERIAL_LEN 2
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#define PTK_LEN_EAPOLMIC 16
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#define PTK_LEN_EAPOLENC 16
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#define PTK_LEN_TKIP 64
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#define PTK_LEN_CCMP 48
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#define LIB1X_ETHER_EAPOL_TYPE 0x888E
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#define DescTypePos 0
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#define KeyInfoPos 1
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#define KeyLenPos 3
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#define ReplayCounterPos 5
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#define KeyNoncePos 13
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#define KeyIVPos 45
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#define KeyRSCPos 61
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#define KeyIDPos 69
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#define KeyMICPos 77
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#define KeyDataLenPos 93
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#define KeyDataPos 95
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#define LIB1X_EAPOL_VER 1 //0000 0001B
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#define LIB1X_EAPOL_EAPPKT 0 //0000 0000B
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#define LIB1X_EAPOL_START 1 //0000 0001B
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#define LIB1X_EAPOL_LOGOFF 2 //0000 0010B
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#define LIB1X_EAPOL_KEY 3 //0000 0011B
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#define LIB1X_EAPOL_ENCASFALERT 4 //0000 0100B
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#define A_SHA_DIGEST_LEN 20
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#define ETHER_HDRLEN 14
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#define LIB1X_EAPOL_HDRLEN 4
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#define INFO_ELEMENT_SIZE 128
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#define MAX_EAPOLMSG_LEN 512
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#define MAX_EAPOLKEYMSG_LEN (MAX_EAPOLMSG_LEN-(ETHER_HDRLEN+LIB1X_EAPOL_HDRLEN))
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#define EAPOLMSG_HDRLEN 95 //EAPOL-key payload length without KeyData
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#define WPA_ELEMENT_ID 0xDD
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#define WPA2_ELEMENT_ID 0x30
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#define ETHER_ADDRLEN 6
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#define PMK_EXPANSION_CONST "Pairwise key expansion"
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#define PMK_EXPANSION_CONST_SIZE 22
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#define GMK_EXPANSION_CONST "Group key expansion"
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#define GMK_EXPANSION_CONST_SIZE 19
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#define RANDOM_EXPANSION_CONST "Init Counter"
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#define RANDOM_EXPANSION_CONST_SIZE 12
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#define WLAN_REASON_MIC_FAILURE 14
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#define WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT 15
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/*
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2008-12-16, For Corega CG-WLCB54GL 54Mbps NIC interoperability issue.
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The behavior of this NIC when it connect to the other AP with WPA/TKIP is:
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AP <----------------------> STA
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....................
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------------> Assoc Rsp (ok)
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------------> EAPOL-key (4-way msg 1)
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<------------ unknown TKIP encryption data
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------------> EAPOL-key (4-way msg 1)
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<------------ unknown TKIP encryption data
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.....................
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<------------ disassoc (code=8, STA is leaving) when the 5 seconds timer timeout counting from Assoc_Rsp is got.
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....................
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------------> Assoc Rsp (ok)
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<-----------> EAPOL-key (4-way handshake success)
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If MAX_RESEND_NUM=3, our AP will send disassoc (code=15, 4-way timeout) to STA before STA sending disassoc to AP.
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And this NIC will always can not connect to our AP.
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set MAX_RESEND_NUM=5 can fix this issue.
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*/
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//#define MAX_RESEND_NUM 3
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#define MAX_RESEND_NUM 5
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#define RESEND_TIME 1000
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#define GK_REKEY_TIME 3600000 //Set rekey period to 1 hour
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typedef enum {
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desc_type_RSN = 2,
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desc_type_WPA = 254
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} DescTypeRSN;
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typedef enum {
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type_Group = 0,
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type_Pairwise = 1
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} KeyType;
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typedef enum {
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key_desc_ver1 = 1,
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key_desc_ver2 = 2
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} KeyDescVer;
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enum {
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PSK_WPA = 1,
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PSK_WPA2 = 2
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};
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enum {
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PSK_STATE_IDLE,
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PSK_STATE_PTKSTART,
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PSK_STATE_PTKINITNEGOTIATING,
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PSK_STATE_PTKINITDONE,
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};
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enum {
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PSK_GSTATE_REKEYNEGOTIATING,
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PSK_GSTATE_REKEYESTABLISHED,
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PSK_GSTATE_KEYERROR,
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};
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typedef struct _OCTET_STRING {
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unsigned char *Octet;
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int Length;
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} OCTET_STRING;
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typedef union _LARGE_INTEGER {
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unsigned char charData[8];
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struct {
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unsigned long HighPart;
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unsigned long LowPart;
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} field;
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} LARGE_INTEGER, *PLARGE_INTEGER;
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typedef union _OCTET16_INTEGER {
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unsigned char charData[16];
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struct {
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LARGE_INTEGER HighPart;
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LARGE_INTEGER LowPart;
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} field;
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} OCTET16_INTEGER;
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typedef union _OCTET32_INTEGER {
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unsigned char charData[32];
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struct {
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OCTET16_INTEGER HighPart;
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OCTET16_INTEGER LowPart;
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} field;
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} OCTET32_INTEGER;
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// group key info
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typedef struct _wpa_global_info {
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OCTET32_INTEGER Counter;
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//Save PSK to global array
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// unsigned char PSK[A_SHA_DIGEST_LEN * 2];
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int GTKAuthenticator;
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int GKeyDoneStations;
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int GInitAKeys;
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int GUpdateStationKeys;
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int GkeyReady;
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OCTET_STRING AuthInfoElement;
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unsigned char AuthInfoBuf[INFO_ELEMENT_SIZE];
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unsigned char MulticastCipher;
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OCTET_STRING GNonce;
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unsigned char GNonceBuf[KEY_NONCE_LEN];
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unsigned char GTK[NumGroupKey][GTK_LEN];
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unsigned char GMK[GMK_LEN];
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int GN;
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int GM;
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int GTKRekey;
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#ifdef CONFIG_GK_REKEY
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struct timer_list GKRekeyTimer;
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#endif
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} WPA_GLOBAL_INFO;
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// wpa sta info
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typedef struct _wpa_sta_info {
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int state;
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int gstate;
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int RSNEnabled; // bit0-WPA, bit1-WPA2
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int PInitAKeys;
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unsigned char UnicastCipher;
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LARGE_INTEGER CurrentReplayCounter;
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LARGE_INTEGER ReplayCounterStarted; // david+1-12-2007
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OCTET_STRING ANonce;
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OCTET_STRING SNonce;
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unsigned char AnonceBuf[KEY_NONCE_LEN];
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unsigned char SnonceBuf[KEY_NONCE_LEN];
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unsigned char PMK[PMK_LEN];
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unsigned char PTK[PTK_LEN_TKIP];
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OCTET_STRING EAPOLMsgRecvd;
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OCTET_STRING EAPOLMsgSend;
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OCTET_STRING EapolKeyMsgRecvd;
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OCTET_STRING EapolKeyMsgSend;
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unsigned char eapSendBuf[MAX_EAPOLMSG_LEN];
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// unsigned char eapRecvdBuf[MAX_EAPOLMSG_LEN];
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struct timer_list resendTimer;
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int resendCnt;
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int clientHndshkProcessing;
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int clientHndshkDone;
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int clientGkeyUpdate;
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LARGE_INTEGER clientMICReportReplayCounter;
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} WPA_STA_INFO;
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typedef struct _LIB1X_EAPOL_KEY
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{
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unsigned char key_desc_ver;
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unsigned char key_info[2];
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unsigned char key_len[2];
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unsigned char key_replay_counter[KEY_RC_LEN];
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unsigned char key_nounce[KEY_NONCE_LEN];
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unsigned char key_iv[KEY_IV_LEN];
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unsigned char key_rsc[KEY_RSC_LEN];
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unsigned char key_id[KEY_ID_LEN];
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unsigned char key_mic[KEY_MIC_LEN];
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unsigned char key_data_len[KEY_MATERIAL_LEN];
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unsigned char *key_data;
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} lib1x_eapol_key;
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struct lib1x_eapol
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{
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unsigned char protocol_version;
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unsigned char packet_type; // This makes it odd in number !
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unsigned short packet_body_length;
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};
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struct wlan_ethhdr_t
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{
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unsigned char daddr[WLAN_ETHADDR_LEN];
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unsigned char saddr[WLAN_ETHADDR_LEN];
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unsigned short type;
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};
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typedef enum{
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DOT11_PortStatus_Unauthorized,
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DOT11_PortStatus_Authorized,
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DOT11_PortStatus_Guest
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}DOT11_PORT_STATUS;
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#ifdef CONFIG_MOVE_PSK_TO_ROM
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static __inline__ OCTET_STRING SubStr(OCTET_STRING f, unsigned short s, unsigned short l)
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{
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OCTET_STRING res;
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res.Length = l;
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res.Octet = f.Octet + s;
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return res;
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}
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#endif
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#define SetSubStr(f,a,l) memcpy(f.Octet+l,a.Octet,a.Length)
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#define GetKeyInfo0(f, mask) ((f.Octet[KeyInfoPos + 1] & mask) ? 1 : 0)
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#define SetKeyInfo0(f,mask,b) (f.Octet[KeyInfoPos + 1] = (f.Octet[KeyInfoPos + 1] & ~mask) | ( b?mask:0x0) )
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#define GetKeyInfo1(f, mask) ((f.Octet[KeyInfoPos] & mask) ? 1 : 0)
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#define SetKeyInfo1(f,mask,b) (f.Octet[KeyInfoPos] = (f.Octet[KeyInfoPos] & ~mask) | ( b?mask:0x0) )
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// EAPOLKey
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#define Message_DescType(f) (f.Octet[DescTypePos])
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#define Message_setDescType(f, type) (f.Octet[DescTypePos] = type)
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// Key Information Filed
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#define Message_KeyDescVer(f) (f.Octet[KeyInfoPos+1] & 0x07)
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#define Message_setKeyDescVer(f, v) (f.Octet[KeyInfoPos+1] &= 0xf8) , f.Octet[KeyInfoPos+1] |= (v & 0x07)
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#define Message_KeyType(f) GetKeyInfo0(f, 0x08)
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#define Message_setKeyType(f, b) SetKeyInfo0(f,0x08,b)
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#define Message_KeyIndex(f) ((f.Octet[KeyInfoPos+1] & 0x30) >> 4) & 0x03
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#define Message_setKeyIndex(f, v) (f.Octet[KeyInfoPos+1] &= 0xcf), f.Octet[KeyInfoPos+1] |= ((v<<4) & 0x30)
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#define Message_setInstall(f, b) SetKeyInfo0(f,0x40,b)
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#define Message_setKeyAck(f, b) SetKeyInfo0(f,0x80,b)
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#define Message_KeyMIC(f) GetKeyInfo1(f, 0x01)
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#define Message_setKeyMIC(f, b) SetKeyInfo1(f,0x01,b)
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#define Message_Secure(f) GetKeyInfo1(f,0x02)
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#define Message_setSecure(f, b) SetKeyInfo1(f,0x02,b)
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#define Message_Error(f) GetKeyInfo1(f,0x04)
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#define Message_setError(f, b) SetKeyInfo1(f,0x04,b)
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#define Message_Request(f) GetKeyInfo1(f,0x08)
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#define Message_setRequest(f, b) SetKeyInfo1(f,0x08,b)
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#define Message_setReserved(f, v) (f.Octet[KeyInfoPos] |= (v<<4&0xff))
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#define Message_KeyLength(f) ((unsigned short)(f.Octet[KeyLenPos] <<8) + (unsigned short)(f.Octet[KeyLenPos+1]))
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#define Message_setKeyLength(f, v) (f.Octet[KeyLenPos] = (v&0xff00) >>8 , f.Octet[KeyLenPos+1] = (v&0x00ff))
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#define Message_KeyNonce(f) SubStr(f, KeyNoncePos, KEY_NONCE_LEN)
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#define Message_setKeyNonce(f, v) SetSubStr(f, v, KeyNoncePos)
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#define Message_EqualKeyNonce(f1, f2) memcmp(f1.Octet + KeyNoncePos, f2.Octet, KEY_NONCE_LEN)? 0:1
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#define Message_setKeyIV(f, v) SetSubStr(f, v, KeyIVPos)
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#define Message_setKeyRSC(f, v) SetSubStr(f, v, KeyRSCPos)
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#define Message_setKeyID(f, v) SetSubStr(f, v, KeyIDPos)
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#define Message_setMIC(f, v) SetSubStr(f, v, KeyMICPos)
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#define Message_KeyDataLength(f) ((unsigned short)(f.Octet[KeyDataLenPos] <<8) + (unsigned short)(f.Octet[KeyDataLenPos+1]))
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#define Message_setKeyDataLength(f, v) (f.Octet[KeyDataLenPos] = (v&0xff00) >>8 , f.Octet[KeyDataLenPos+1] = (v&0x00ff))
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#define Message_setKeyData(f, v) SetSubStr(f, v, KeyDataPos);
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#define Message_CopyReplayCounter(f1, f2) memcpy(f1.Octet + ReplayCounterPos, f2.Octet + ReplayCounterPos, KEY_RC_LEN)
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#define Message_DefaultReplayCounter(li) (((li.field.HighPart == 0xffffffff) && (li.field.LowPart == 0xffffffff) ) ?1:0)
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#define GET_MY_HWADDR(padapter) ((padapter)->eeprompriv.mac_addr)
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#define LargeIntegerOverflow(x) (x.field.HighPart == 0xffffffff) && (x.field.LowPart == 0xffffffff)
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#define LargeIntegerZero(x) memset(&x.charData, 0, 8)
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#define Octet16IntegerOverflow(x) LargeIntegerOverflow(x.field.HighPart) && LargeIntegerOverflow(x.field.LowPart)
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#define Octet16IntegerZero(x) memset(&x.charData, 0, 16)
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#define SetNonce(ocDst, oc32Counter) SetEAPOL_KEYIV(ocDst, oc32Counter)
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void ClientSendEAPOL(_adapter *padapter, struct sta_info *psta, int resend);
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void SendEAPOL(_adapter *padapter, struct sta_info *psta, int resend);
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void EAPOLKeyRecvd(_adapter *padapter, struct sta_info *psta);
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void ClientEAPOLKeyRecvd(_adapter *padapter, struct sta_info *psta);
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void init_wpa_sta_info(_adapter *padapter, struct sta_info *psta);
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void psk_init(_adapter *padapter, unsigned char *pie, unsigned short ielen);
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void psk_derive(_adapter *padapter, unsigned char *passphrase, unsigned char *ssid);
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u16 psk_strip_rsn_pairwise(u8 *ie, u16 ie_len);
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u16 psk_strip_wpa_pairwise(u8 *ie, u16 ie_len);
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#endif // _RTW_PSK_H_
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