/* * 802.1x EAPOL definitions * * See * IEEE Std 802.1X-2001 * IEEE 802.1X RADIUS Usage Guidelines * * Copyright (C) 1999-2019, Broadcom. * * Unless you and Broadcom execute a separate written software license * agreement governing use of this software, this software is licensed to you * under the terms of the GNU General Public License version 2 (the "GPL"), * available at http://www.broadcom.com/licenses/GPLv2.php, with the * following added to such license: * * As a special exception, the copyright holders of this software give you * permission to link this software with independent modules, and to copy and * distribute the resulting executable under terms of your choice, provided that * you also meet, for each linked independent module, the terms and conditions of * the license of that module. An independent module is a module which is not * derived from this software. The special exception does not apply to any * modifications of the software. * * Notwithstanding the above, under no circumstances may you combine this * software in any way with any other Broadcom software provided under a license * other than the GPL, without Broadcom's express prior written consent. * * * <> * * $Id: eapol.h 809460 2019-03-14 00:35:24Z $ */ #ifndef _eapol_h_ #define _eapol_h_ #ifndef _TYPEDEFS_H_ #include #endif // endif /* This marks the start of a packed structure section. */ #include #if !defined(BCMCRYPTO_COMPONENT) #include #endif /* !BCMCRYPTO_COMPONENT */ /* EAPOL for 802.3/Ethernet */ typedef BWL_PRE_PACKED_STRUCT struct { struct ether_header eth; /* 802.3/Ethernet header */ unsigned char version; /* EAPOL protocol version */ unsigned char type; /* EAPOL type */ unsigned short length; /* Length of body */ unsigned char body[1]; /* Body (optional) */ } BWL_POST_PACKED_STRUCT eapol_header_t; #define EAPOL_HEADER_LEN 18 typedef struct { unsigned char version; /* EAPOL protocol version */ unsigned char type; /* EAPOL type */ unsigned short length; /* Length of body */ } eapol_hdr_t; #define EAPOL_HDR_LEN 4u /* EAPOL version */ #define WPA2_EAPOL_VERSION 2u #define WPA_EAPOL_VERSION 1u #define LEAP_EAPOL_VERSION 1u #define SES_EAPOL_VERSION 1u /* EAPOL types */ #define EAP_PACKET 0 #define EAPOL_START 1u #define EAPOL_LOGOFF 2u #define EAPOL_KEY 3u #define EAPOL_ASF 4u /* EAPOL-Key types */ #define EAPOL_RC4_KEY 1u #define EAPOL_WPA2_KEY 2u /* 802.11i/WPA2 */ #define EAPOL_WPA_KEY 254u /* WPA */ /* RC4 EAPOL-Key header field sizes */ #define EAPOL_KEY_REPLAY_LEN 8u #define EAPOL_KEY_IV_LEN 16u #define EAPOL_KEY_SIG_LEN 16u /* RC4 EAPOL-Key */ typedef BWL_PRE_PACKED_STRUCT struct { unsigned char type; /* Key Descriptor Type */ unsigned short length; /* Key Length (unaligned) */ unsigned char replay[EAPOL_KEY_REPLAY_LEN]; /* Replay Counter */ unsigned char iv[EAPOL_KEY_IV_LEN]; /* Key IV */ unsigned char index; /* Key Flags & Index */ unsigned char signature[EAPOL_KEY_SIG_LEN]; /* Key Signature */ unsigned char key[1]; /* Key (optional) */ } BWL_POST_PACKED_STRUCT eapol_key_header_t; #define EAPOL_KEY_HEADER_LEN 44u /* RC4 EAPOL-Key flags */ #define EAPOL_KEY_FLAGS_MASK 0x80u #define EAPOL_KEY_BROADCAST 0u #define EAPOL_KEY_UNICAST 0x80u /* RC4 EAPOL-Key index */ #define EAPOL_KEY_INDEX_MASK 0x7fu /* WPA/802.11i/WPA2 EAPOL-Key header field sizes */ #define EAPOL_AKW_BLOCK_LEN 8 #define EAPOL_WPA_KEY_REPLAY_LEN 8u #define EAPOL_WPA_KEY_NONCE_LEN 32u #define EAPOL_WPA_KEY_IV_LEN 16u #define EAPOL_WPA_KEY_RSC_LEN 8u #define EAPOL_WPA_KEY_ID_LEN 8u #define EAPOL_WPA_KEY_DATA_LEN (EAPOL_WPA_MAX_KEY_SIZE + EAPOL_AKW_BLOCK_LEN) #define EAPOL_WPA_MAX_KEY_SIZE 32u #define EAPOL_WPA_KEY_MAX_MIC_LEN 32u #define EAPOL_WPA_ENCR_KEY_MAX_LEN 64u #define EAPOL_WPA_TEMP_ENCR_KEY_MAX_LEN 32u #define EAPOL_WPA_PMK_MAX_LEN 64u #define EAPOL_WPA_PMK_SHA384_LEN 48u #define EAPOL_WPA_PMK_DEFAULT_LEN 32u #define EAPOL_WPA_KCK_DEFAULT_LEN 16u #define EAPOL_WPA_KCK_SHA384_LEN 24u #define EAPOL_WPA_KCK_MIC_DEFAULT_LEN 16u #define EAPOL_WPA_KCK_MIC_SHA384_LEN 24u #define EAPOL_WPA_ENCR_KEY_DEFAULT_LEN 16u #define EAPOL_WPA_KEK2_SHA256_LEN 16u #define EAPOL_WPA_KEK2_SHA384_LEN 32u #define EAPOL_WPA_KCK2_SHA256_LEN 16u #define EAPOL_WPA_KCK2_SHA384_LEN 24u #ifndef EAPOL_KEY_HDR_VER_V2 #define EAPOL_WPA_KEY_MIC_LEN 16u /* deprecated */ #define EAPOL_WPA_KEY_LEN 95u /* deprecated */ #endif // endif #define EAPOL_PTK_KEY_MAX_LEN (EAPOL_WPA_KEY_MAX_MIC_LEN +\ EAPOL_WPA_ENCR_KEY_MAX_LEN +\ EAPOL_WPA_TEMP_ENCR_KEY_MAX_LEN +\ EAPOL_WPA_KCK2_SHA384_LEN +\ EAPOL_WPA_KEK2_SHA384_LEN) #ifndef EAPOL_KEY_HDR_VER_V2 /* WPA EAPOL-Key : deprecated */ typedef BWL_PRE_PACKED_STRUCT struct { unsigned char type; /* Key Descriptor Type */ unsigned short key_info; /* Key Information (unaligned) */ unsigned short key_len; /* Key Length (unaligned) */ unsigned char replay[EAPOL_WPA_KEY_REPLAY_LEN]; /* Replay Counter */ unsigned char nonce[EAPOL_WPA_KEY_NONCE_LEN]; /* Nonce */ unsigned char iv[EAPOL_WPA_KEY_IV_LEN]; /* Key IV */ unsigned char rsc[EAPOL_WPA_KEY_RSC_LEN]; /* Key RSC */ unsigned char id[EAPOL_WPA_KEY_ID_LEN]; /* WPA:Key ID, 802.11i/WPA2: Reserved */ unsigned char mic[EAPOL_WPA_KEY_MIC_LEN]; /* Key MIC */ unsigned short data_len; /* Key Data Length */ unsigned char data[EAPOL_WPA_KEY_DATA_LEN]; /* Key data */ } BWL_POST_PACKED_STRUCT eapol_wpa_key_header_t; #else /* WPA EAPOL-Key : new structure to consider dynamic MIC length */ typedef BWL_PRE_PACKED_STRUCT struct { unsigned char type; /* Key Descriptor Type */ unsigned short key_info; /* Key Information (unaligned) */ unsigned short key_len; /* Key Length (unaligned) */ unsigned char replay[EAPOL_WPA_KEY_REPLAY_LEN]; /* Replay Counter */ unsigned char nonce[EAPOL_WPA_KEY_NONCE_LEN]; /* Nonce */ unsigned char iv[EAPOL_WPA_KEY_IV_LEN]; /* Key IV */ unsigned char rsc[EAPOL_WPA_KEY_RSC_LEN]; /* Key RSC */ unsigned char id[EAPOL_WPA_KEY_ID_LEN]; /* WPA:Key ID, 802.11i/WPA2: Reserved */ } BWL_POST_PACKED_STRUCT eapol_wpa_key_header_v2_t; typedef eapol_wpa_key_header_v2_t eapol_wpa_key_header_t; #endif /* EAPOL_KEY_HDR_VER_V2 */ #define EAPOL_WPA_KEY_DATA_LEN_SIZE 2u #ifdef EAPOL_KEY_HDR_VER_V2 #define EAPOL_WPA_KEY_HDR_SIZE(mic_len) (sizeof(eapol_wpa_key_header_v2_t) \ + mic_len + EAPOL_WPA_KEY_DATA_LEN_SIZE) /* WPA EAPOL-Key header macros to reach out mic/data_len/data field */ #define EAPOL_WPA_KEY_HDR_MIC_PTR(pos) ((uint8 *)pos + sizeof(eapol_wpa_key_header_v2_t)) #define EAPOL_WPA_KEY_HDR_DATA_LEN_PTR(pos, mic_len) \ ((uint8 *)pos + sizeof(eapol_wpa_key_header_v2_t) + mic_len) #define EAPOL_WPA_KEY_HDR_DATA_PTR(pos, mic_len) \ ((uint8 *)pos + EAPOL_WPA_KEY_HDR_SIZE(mic_len)) #else #define EAPOL_WPA_KEY_HDR_SIZE(mic_len) EAPOL_WPA_KEY_LEN #define EAPOL_WPA_KEY_HDR_MIC_PTR(pos) ((uint8 *)&pos->mic) #define EAPOL_WPA_KEY_HDR_DATA_LEN_PTR(pos, mic_len) ((uint8 *)&pos->data_len) #define EAPOL_WPA_KEY_HDR_DATA_PTR(pos, mic_len) ((uint8 *)&pos->data) #endif /* EAPOL_KEY_HDR_VER_V2 */ /* WPA/802.11i/WPA2 KEY KEY_INFO bits */ #define WPA_KEY_DESC_OSEN 0x0 #define WPA_KEY_DESC_V0 0x0 #define WPA_KEY_DESC_V1 0x01 #define WPA_KEY_DESC_V2 0x02 #define WPA_KEY_DESC_V3 0x03 #define WPA_KEY_PAIRWISE 0x08 #define WPA_KEY_INSTALL 0x40 #define WPA_KEY_ACK 0x80 #define WPA_KEY_MIC 0x100 #define WPA_KEY_SECURE 0x200 #define WPA_KEY_ERROR 0x400 #define WPA_KEY_REQ 0x800 #define WPA_KEY_ENC_KEY_DATA 0x01000 /* Encrypted Key Data */ #define WPA_KEY_SMK_MESSAGE 0x02000 /* SMK Message */ #define WPA_KEY_DESC_VER(_ki) ((_ki) & 0x03u) #define WPA_KEY_DESC_V2_OR_V3 WPA_KEY_DESC_V2 /* WPA-only KEY KEY_INFO bits */ #define WPA_KEY_INDEX_0 0x00 #define WPA_KEY_INDEX_1 0x10 #define WPA_KEY_INDEX_2 0x20 #define WPA_KEY_INDEX_3 0x30 #define WPA_KEY_INDEX_MASK 0x30 #define WPA_KEY_INDEX_SHIFT 0x04 /* 802.11i/WPA2-only KEY KEY_INFO bits */ #define WPA_KEY_ENCRYPTED_DATA 0x1000 /* Key Data encapsulation */ typedef BWL_PRE_PACKED_STRUCT struct { uint8 type; uint8 length; uint8 oui[3]; uint8 subtype; uint8 data[1]; } BWL_POST_PACKED_STRUCT eapol_wpa2_encap_data_t; #define EAPOL_WPA2_ENCAP_DATA_HDR_LEN 6 #define WPA2_KEY_DATA_SUBTYPE_GTK 1 #define WPA2_KEY_DATA_SUBTYPE_STAKEY 2 #define WPA2_KEY_DATA_SUBTYPE_MAC 3 #define WPA2_KEY_DATA_SUBTYPE_PMKID 4 #define WPA2_KEY_DATA_SUBTYPE_IGTK 9 /* GTK encapsulation */ typedef BWL_PRE_PACKED_STRUCT struct { uint8 flags; uint8 reserved; uint8 gtk[EAPOL_WPA_MAX_KEY_SIZE]; } BWL_POST_PACKED_STRUCT eapol_wpa2_key_gtk_encap_t; #define EAPOL_WPA2_KEY_GTK_ENCAP_HDR_LEN 2 #define WPA2_GTK_INDEX_MASK 0x03 #define WPA2_GTK_INDEX_SHIFT 0x00 #define WPA2_GTK_TRANSMIT 0x04 /* IGTK encapsulation */ typedef BWL_PRE_PACKED_STRUCT struct { uint16 key_id; uint8 ipn[6]; uint8 key[EAPOL_WPA_MAX_KEY_SIZE]; } BWL_POST_PACKED_STRUCT eapol_wpa2_key_igtk_encap_t; #define EAPOL_WPA2_KEY_IGTK_ENCAP_HDR_LEN 8 /* STAKey encapsulation */ typedef BWL_PRE_PACKED_STRUCT struct { uint8 reserved[2]; uint8 mac[ETHER_ADDR_LEN]; uint8 stakey[EAPOL_WPA_MAX_KEY_SIZE]; } BWL_POST_PACKED_STRUCT eapol_wpa2_key_stakey_encap_t; #define WPA2_KEY_DATA_PAD 0xdd /* This marks the end of a packed structure section. */ #include #endif /* _eapol_h_ */