Release 4.17 drivers/staging/ks7010/eap_packet.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef EAP_PACKET_H

#define EAP_PACKET_H

#include <linux/compiler.h>
#include <linux/bitops.h>
#include <uapi/linux/if_ether.h>


#define ETHER_HDR_SIZE 20


struct ether_hdr {
	
unsigned char h_dest[ETH_ALEN];	/* destination eth addr */
	
unsigned char h_source[ETH_ALEN];	/* source ether addr    */
	
unsigned char h_dest_snap;
	
unsigned char h_source_snap;
	
unsigned char h_command;
	
unsigned char h_vendor_id[3];
	
__be16 h_proto;	/* packet type ID field */
	/* followed by length octets of data */

} __packed;


struct ieee802_1x_hdr {
	
unsigned char version;
	
unsigned char type;
	
unsigned short length;
	/* followed by length octets of data */

} __packed;


#define EAPOL_VERSION 2



enum { IEEE802_1X_TYPE_EAP_PACKET = 0,
	
IEEE802_1X_TYPE_EAPOL_START = 1,
	
IEEE802_1X_TYPE_EAPOL_LOGOFF = 2,
	
IEEE802_1X_TYPE_EAPOL_KEY = 3,
	
IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT = 4
};




enum { EAPOL_KEY_TYPE_RC4 = 1, EAPOL_KEY_TYPE_RSN = 2,
	
EAPOL_KEY_TYPE_WPA = 254
};


#define IEEE8021X_REPLAY_COUNTER_LEN 8

#define IEEE8021X_KEY_SIGN_LEN 16

#define IEEE8021X_KEY_IV_LEN 16


#define IEEE8021X_KEY_INDEX_FLAG 0x80

#define IEEE8021X_KEY_INDEX_MASK 0x03


struct ieee802_1x_eapol_key {
	
unsigned char type;
	
unsigned short key_length;
	/*
         * does not repeat within the life of the keying material used to
         * encrypt the Key field; 64-bit NTP timestamp MAY be used here
         */
	
unsigned char replay_counter[IEEE8021X_REPLAY_COUNTER_LEN];
	
unsigned char key_iv[IEEE8021X_KEY_IV_LEN]; /* cryptographically random
                                                     * number
                                                     */
	
unsigned char key_index;	/*
                                         * key flag in the most significant bit:
                                         * 0 = broadcast (default key),
                                         * 1 = unicast (key mapping key);
                                         * key index is in the 7 least
                                         * significant bits
                                         */
	/*
         * HMAC-MD5 message integrity check computed with MS-MPPE-Send-Key as
         * the key
         */
	
unsigned char key_signature[IEEE8021X_KEY_SIGN_LEN];

	/*
         * followed by key: if packet body length = 44 + key length, then the
         * key field (of key_length bytes) contains the key in encrypted form;
         * if packet body length = 44, key field is absent and key_length
         * represents the number of least significant octets from
         * MS-MPPE-Send-Key attribute to be used as the keying material;
         * RC4 key used in encryption = Key-IV + MS-MPPE-Recv-Key
         */

} __packed;


#define WPA_NONCE_LEN 32

#define WPA_REPLAY_COUNTER_LEN 8


struct wpa_eapol_key {
	
unsigned char type;
	
__be16 key_info;
	
unsigned short key_length;
	
unsigned char replay_counter[WPA_REPLAY_COUNTER_LEN];
	
unsigned char key_nonce[WPA_NONCE_LEN];
	
unsigned char key_iv[16];
	
unsigned char key_rsc[8];
	
unsigned char key_id[8];	/* Reserved in IEEE 802.11i/RSN */
	
unsigned char key_mic[16];
	
unsigned short key_data_length;
	/* followed by key_data_length bytes of key_data */

} __packed;


#define WPA_KEY_INFO_TYPE_MASK GENMASK(2, 0)

#define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0)

#define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1)

#define WPA_KEY_INFO_KEY_TYPE BIT(3)	
/* 1 = Pairwise, 0 = Group key */
/* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */

#define WPA_KEY_INFO_KEY_INDEX_MASK GENMASK(5, 4)

#define WPA_KEY_INFO_KEY_INDEX_SHIFT 4

#define WPA_KEY_INFO_INSTALL BIT(6)	
/* pairwise */

#define WPA_KEY_INFO_TXRX BIT(6)	
/* group */

#define WPA_KEY_INFO_ACK BIT(7)

#define WPA_KEY_INFO_MIC BIT(8)

#define WPA_KEY_INFO_SECURE BIT(9)

#define WPA_KEY_INFO_ERROR BIT(10)

#define WPA_KEY_INFO_REQUEST BIT(11)

#define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12)	
/* IEEE 802.11i/RSN only */


#define WPA_CAPABILITY_PREAUTH BIT(0)


#define GENERIC_INFO_ELEM 0xdd

#define RSN_INFO_ELEM 0x30


enum {
	
REASON_UNSPECIFIED = 1,
	
REASON_DEAUTH_LEAVING = 3,
	
REASON_INVALID_IE = 13,
	
REASON_MICHAEL_MIC_FAILURE = 14,
	
REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
	
REASON_GROUP_KEY_UPDATE_TIMEOUT = 16,
	
REASON_IE_IN_4WAY_DIFFERS = 17,
	
REASON_GROUP_CIPHER_NOT_VALID = 18,
	
REASON_PAIRWISE_CIPHER_NOT_VALID = 19,
	
REASON_AKMP_NOT_VALID = 20,
	
REASON_UNSUPPORTED_RSN_IE_VERSION = 21,
	
REASON_INVALID_RSN_IE_CAPAB = 22,
	
REASON_IEEE_802_1X_AUTH_FAILED = 23,
	
REASON_CIPHER_SUITE_REJECTED = 24
};

#endif /* EAP_PACKET_H */
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Directory: drivers/staging/ks7010

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