mirror of
https://github.com/lwfinger/rtl8188eu.git
synced 2024-09-20 16:17:06 +00:00
19db43ecbd
This driver was added to the kernel with version 3.12. The changes in that version are now brought back to the GitHub repo. Essentually all of the code is updated. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
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_88EU_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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