| /* |
| * 802.1x EAPOL definitions |
| * |
| * See |
| * IEEE Std 802.1X-2001 |
| * IEEE 802.1X RADIUS Usage Guidelines |
| * |
| * Copyright (C) 2020, 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. |
| * |
| * |
| * <<Broadcom-WL-IPTag/Dual:>> |
| */ |
| |
| #ifndef _eapol_h_ |
| #define _eapol_h_ |
| |
| #ifndef _TYPEDEFS_H_ |
| #include <typedefs.h> |
| #endif |
| |
| /* This marks the start of a packed structure section. */ |
| #include <packed_section_start.h> |
| |
| #if !defined(BCMCRYPTO_COMPONENT) |
| #include <bcmcrypto/aeskeywrap.h> |
| #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 |
| |
| #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 */ |
| /* this is really just a vendor-specific info element. should define |
| * this in 802.11.h |
| */ |
| 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 <packed_section_end.h> |
| |
| #endif /* _eapol_h_ */ |
