mirror of
https://github.com/lwfinger/rtl8188eu.git
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383 lines
12 KiB
C
383 lines
12 KiB
C
/******************************************************************************
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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_SECURITY_H_
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#define __RTW_SECURITY_H_
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#include <osdep_service.h>
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#include <drv_types.h>
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#define _NO_PRIVACY_ 0x0
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#define _WEP40_ 0x1
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#define _TKIP_ 0x2
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#define _TKIP_WTMIC_ 0x3
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#define _AES_ 0x4
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#define _WEP104_ 0x5
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#define _WEP_WPA_MIXED_ 0x07 /* WEP + WPA */
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#define _SMS4_ 0x06
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#define is_wep_enc(alg) (((alg) == _WEP40_) || ((alg) == _WEP104_))
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#define _WPA_IE_ID_ 0xdd
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#define _WPA2_IE_ID_ 0x30
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#define SHA256_MAC_LEN 32
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#define AES_BLOCK_SIZE 16
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#define AES_PRIV_SIZE (4 * 44)
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enum {
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ENCRYP_PROTOCOL_OPENSYS, /* open system */
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ENCRYP_PROTOCOL_WEP, /* WEP */
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ENCRYP_PROTOCOL_WPA, /* WPA */
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ENCRYP_PROTOCOL_WPA2, /* WPA2 */
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ENCRYP_PROTOCOL_WAPI, /* WAPI: Not support in this version */
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ENCRYP_PROTOCOL_MAX
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};
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#ifndef Ndis802_11AuthModeWPA2
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#define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1)
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#endif
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#ifndef Ndis802_11AuthModeWPA2PSK
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#define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2)
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#endif
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union pn48 {
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u64 val;
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#ifdef __LITTLE_ENDIAN
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struct {
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u8 TSC0;
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u8 TSC1;
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u8 TSC2;
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u8 TSC3;
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u8 TSC4;
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u8 TSC5;
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u8 TSC6;
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u8 TSC7;
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} _byte_;
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#elif defined(__BIG_ENDIAN)
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struct {
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u8 TSC7;
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u8 TSC6;
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u8 TSC5;
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u8 TSC4;
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u8 TSC3;
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u8 TSC2;
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u8 TSC1;
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u8 TSC0;
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} _byte_;
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#endif
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};
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union Keytype {
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u8 skey[16];
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u32 lkey[4];
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};
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struct rt_pmkid_list {
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u8 bUsed;
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u8 Bssid[6];
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u8 PMKID[16];
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u8 SsidBuf[33];
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u8 *ssid_octet;
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u16 ssid_length;
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};
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struct security_priv {
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u32 dot11AuthAlgrthm; /* 802.11 auth, could be open,
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* shared, 8021x and authswitch */
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u32 dot11PrivacyAlgrthm; /* This specify the privacy for
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* shared auth. algorithm. */
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/* WEP */
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u32 dot11PrivacyKeyIndex; /* this is only valid for legendary
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* wep, 0~3 for key id.(tx key index) */
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union Keytype dot11DefKey[4]; /* this is only valid for def. key */
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u32 dot11DefKeylen[4];
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u32 dot118021XGrpPrivacy; /* This specify the privacy algthm.
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* used for Grp key */
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u32 dot118021XGrpKeyid; /* key id used for Grp Key
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* ( tx key index) */
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union Keytype dot118021XGrpKey[4]; /* 802.1x Group Key,
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* for inx0 and inx1 */
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union Keytype dot118021XGrptxmickey[4];
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union Keytype dot118021XGrprxmickey[4];
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union pn48 dot11Grptxpn; /* PN48 used for Grp Key xmit.*/
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union pn48 dot11Grprxpn; /* PN48 used for Grp Key recv.*/
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#ifdef CONFIG_AP_MODE
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/* extend security capabilities for AP_MODE */
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unsigned int dot8021xalg;/* 0:disable, 1:psk, 2:802.1x */
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unsigned int wpa_psk;/* 0:disable, bit(0): WPA, bit(1):WPA2 */
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unsigned int wpa_group_cipher;
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unsigned int wpa2_group_cipher;
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unsigned int wpa_pairwise_cipher;
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unsigned int wpa2_pairwise_cipher;
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#endif
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u8 wps_ie[MAX_WPS_IE_LEN];/* added in assoc req */
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int wps_ie_len;
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u8 binstallGrpkey;
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u8 busetkipkey;
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u8 bcheck_grpkey;
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u8 bgrpkey_handshake;
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s32 sw_encrypt;/* from registry_priv */
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s32 sw_decrypt;/* from registry_priv */
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s32 hw_decrypted;/* if the rx packets is hw_decrypted==false,i
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* it means the hw has not been ready. */
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/* keeps the auth_type & enc_status from upper layer
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* ioctl(wpa_supplicant or wzc) */
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u32 ndisauthtype; /* NDIS_802_11_AUTHENTICATION_MODE */
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u32 ndisencryptstatus; /* NDIS_802_11_ENCRYPTION_STATUS */
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struct wlan_bssid_ex sec_bss; /* for joinbss (h2c buffer) usage */
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struct ndis_802_11_wep ndiswep;
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u8 assoc_info[600];
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u8 szofcapability[256]; /* for wpa2 usage */
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u8 oidassociation[512]; /* for wpa/wpa2 usage */
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u8 authenticator_ie[256]; /* store ap security information element */
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u8 supplicant_ie[256]; /* store sta security information element */
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/* for tkip countermeasure */
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u32 last_mic_err_time;
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u8 btkip_countermeasure;
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u8 btkip_wait_report;
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u32 btkip_countermeasure_time;
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/* */
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/* For WPA2 Pre-Authentication. */
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/* */
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struct rt_pmkid_list PMKIDList[NUM_PMKID_CACHE];
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u8 PMKIDIndex;
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u8 bWepDefaultKeyIdxSet;
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};
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struct sha256_state {
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u64 length;
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u32 state[8], curlen;
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u8 buf[64];
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};
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#define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst) \
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do { \
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switch (psecuritypriv->dot11AuthAlgrthm) { \
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case dot11AuthAlgrthm_Open: \
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case dot11AuthAlgrthm_Shared: \
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case dot11AuthAlgrthm_Auto: \
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encry_algo = (u8)psecuritypriv->dot11PrivacyAlgrthm; \
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break; \
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case dot11AuthAlgrthm_8021X: \
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if (bmcst) \
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encry_algo = (u8)psecuritypriv->dot118021XGrpPrivacy;\
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else \
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encry_algo = (u8)psta->dot118021XPrivacy; \
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break; \
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case dot11AuthAlgrthm_WAPI: \
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encry_algo = (u8)psecuritypriv->dot11PrivacyAlgrthm; \
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break; \
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} \
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} while (0)
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#define SET_ICE_IV_LEN(iv_len, icv_len, encrypt) \
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do { \
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switch (encrypt) { \
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case _WEP40_: \
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case _WEP104_: \
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iv_len = 4; \
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icv_len = 4; \
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break; \
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case _TKIP_: \
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iv_len = 8; \
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icv_len = 4; \
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break; \
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case _AES_: \
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iv_len = 8; \
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icv_len = 8; \
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break; \
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case _SMS4_: \
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iv_len = 18; \
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icv_len = 16; \
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break; \
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default: \
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iv_len = 0; \
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icv_len = 0; \
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break; \
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} \
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} while (0)
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#define GET_TKIP_PN(iv, dot11txpn) \
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do { \
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dot11txpn._byte_.TSC0 = iv[2]; \
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dot11txpn._byte_.TSC1 = iv[0]; \
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dot11txpn._byte_.TSC2 = iv[4]; \
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dot11txpn._byte_.TSC3 = iv[5]; \
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dot11txpn._byte_.TSC4 = iv[6]; \
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dot11txpn._byte_.TSC5 = iv[7]; \
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} while (0)
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#define ROL32(A, n) (((A) << (n)) | (((A)>>(32-(n))) & ((1UL << (n)) - 1)))
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#define ROR32(A, n) ROL32((A), 32-(n))
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struct mic_data {
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u32 K0, K1; /* Key */
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u32 L, R; /* Current state */
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u32 M; /* Message accumulator (single word) */
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u32 nBytesInM; /* # bytes in M */
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};
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extern const u32 Te0[256];
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extern const u32 Te1[256];
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extern const u32 Te2[256];
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extern const u32 Te3[256];
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extern const u32 Te4[256];
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extern const u32 Td0[256];
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extern const u32 Td1[256];
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extern const u32 Td2[256];
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extern const u32 Td3[256];
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extern const u32 Td4[256];
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extern const u32 rcon[10];
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extern const u8 Td4s[256];
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extern const u8 rcons[10];
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#define RCON(i) (rcons[(i)] << 24)
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static inline u32 rotr(u32 val, int bits)
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{
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return (val >> bits) | (val << (32 - bits));
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}
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#define TE0(i) Te0[((i) >> 24) & 0xff]
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#define TE1(i) rotr(Te0[((i) >> 16) & 0xff], 8)
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#define TE2(i) rotr(Te0[((i) >> 8) & 0xff], 16)
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#define TE3(i) rotr(Te0[(i) & 0xff], 24)
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#define TE41(i) ((Te0[((i) >> 24) & 0xff] << 8) & 0xff000000)
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#define TE42(i) (Te0[((i) >> 16) & 0xff] & 0x00ff0000)
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#define TE43(i) (Te0[((i) >> 8) & 0xff] & 0x0000ff00)
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#define TE44(i) ((Te0[(i) & 0xff] >> 8) & 0x000000ff)
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#define TE421(i) ((Te0[((i) >> 16) & 0xff] << 8) & 0xff000000)
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#define TE432(i) (Te0[((i) >> 8) & 0xff] & 0x00ff0000)
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#define TE443(i) (Te0[(i) & 0xff] & 0x0000ff00)
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#define TE414(i) ((Te0[((i) >> 24) & 0xff] >> 8) & 0x000000ff)
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#define TE4(i) ((Te0[(i)] >> 8) & 0x000000ff)
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#define TD0(i) Td0[((i) >> 24) & 0xff]
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#define TD1(i) rotr(Td0[((i) >> 16) & 0xff], 8)
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#define TD2(i) rotr(Td0[((i) >> 8) & 0xff], 16)
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#define TD3(i) rotr(Td0[(i) & 0xff], 24)
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#define TD41(i) (Td4s[((i) >> 24) & 0xff] << 24)
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#define TD42(i) (Td4s[((i) >> 16) & 0xff] << 16)
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#define TD43(i) (Td4s[((i) >> 8) & 0xff] << 8)
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#define TD44(i) (Td4s[(i) & 0xff])
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#define TD0_(i) Td0[(i) & 0xff]
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#define TD1_(i) rotr(Td0[(i) & 0xff], 8)
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#define TD2_(i) rotr(Td0[(i) & 0xff], 16)
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#define TD3_(i) rotr(Td0[(i) & 0xff], 24)
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#define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ \
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((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]))
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#define PUTU32(ct, st) { \
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(ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); \
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(ct)[2] = (u8)((st) >> 8); (ct)[3] = (u8)(st); }
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#define WPA_GET_BE32(a) ((((u32)(a)[0]) << 24) | (((u32)(a)[1]) << 16) | \
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(((u32)(a)[2]) << 8) | ((u32)(a)[3]))
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#define WPA_PUT_LE16(a, val) \
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do { \
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(a)[1] = ((u16)(val)) >> 8; \
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(a)[0] = ((u16)(val)) & 0xff; \
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} while (0)
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#define WPA_PUT_BE32(a, val) \
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do { \
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(a)[0] = (u8)((((u32)(val)) >> 24) & 0xff); \
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(a)[1] = (u8)((((u32)(val)) >> 16) & 0xff); \
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(a)[2] = (u8)((((u32)(val)) >> 8) & 0xff); \
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(a)[3] = (u8)(((u32)(val)) & 0xff); \
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} while (0)
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#define WPA_PUT_BE64(a, val) \
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do { \
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(a)[0] = (u8)(((u64)(val)) >> 56); \
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(a)[1] = (u8)(((u64)(val)) >> 48); \
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(a)[2] = (u8)(((u64)(val)) >> 40); \
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(a)[3] = (u8)(((u64)(val)) >> 32); \
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(a)[4] = (u8)(((u64)(val)) >> 24); \
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(a)[5] = (u8)(((u64)(val)) >> 16); \
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(a)[6] = (u8)(((u64)(val)) >> 8); \
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(a)[7] = (u8)(((u64)(val)) & 0xff); \
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} while (0)
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/* ===== start - public domain SHA256 implementation ===== */
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/* This is based on SHA256 implementation in LibTomCrypt that was released into
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* public domain by Tom St Denis. */
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/* the K array */
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static const unsigned long K[64] = {
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0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 0x3956c25bUL,
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0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 0xd807aa98UL, 0x12835b01UL,
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0x243185beUL, 0x550c7dc3UL, 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL,
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0xc19bf174UL, 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
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0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 0x983e5152UL,
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0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 0xc6e00bf3UL, 0xd5a79147UL,
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0x06ca6351UL, 0x14292967UL, 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL,
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0x53380d13UL, 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
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0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 0xd192e819UL,
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0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 0x19a4c116UL, 0x1e376c08UL,
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0x2748774cUL, 0x34b0bcb5UL, 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL,
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0x682e6ff3UL, 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
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0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
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};
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/* Various logical functions */
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#define RORc(x, y) \
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(((((unsigned long)(x) & 0xFFFFFFFFUL) >> (unsigned long)((y)&31)) | \
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((unsigned long)(x) << (unsigned long)(32-((y)&31)))) & 0xFFFFFFFFUL)
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#define Ch(x, y ,z) (z ^ (x & (y ^ z)))
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#define Maj(x, y, z) (((x | y) & z) | (x & y))
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#define S(x, n) RORc((x), (n))
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#define R(x, n) (((x)&0xFFFFFFFFUL)>>(n))
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#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
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#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
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#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
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#define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
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#ifndef MIN
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#define MIN(x, y) (((x) < (y)) ? (x) : (y))
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#endif
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void rtw_secmicsetkey(struct mic_data *pmicdata, u8 *key);
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void rtw_secmicappendbyte(struct mic_data *pmicdata, u8 b);
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void rtw_secmicappend(struct mic_data *pmicdata, u8 *src, u32 nBytes);
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void rtw_secgetmic(struct mic_data *pmicdata, u8 *dst);
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void rtw_seccalctkipmic(u8 *key, u8 *header, u8 *data, u32 data_len,
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u8 *Miccode, u8 priority);
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u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe);
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u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe);
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void rtw_wep_encrypt(struct adapter *padapter, u8 *pxmitframe);
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u32 rtw_aes_decrypt(struct adapter *padapter, u8 *precvframe);
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u32 rtw_tkip_decrypt(struct adapter *padapter, u8 *precvframe);
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void rtw_wep_decrypt(struct adapter *padapter, u8 *precvframe);
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void rtw_use_tkipkey_handler(void *FunctionContext);
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#endif /* __RTL871X_SECURITY_H_ */
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