/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef EAP_PACKET_H
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#define EAP_PACKET_H
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#include <linux/compiler.h>
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#include <linux/bitops.h>
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#include <uapi/linux/if_ether.h>
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struct ether_hdr {
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unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
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unsigned char h_source[ETH_ALEN]; /* source ether addr */
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unsigned char h_dest_snap;
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unsigned char h_source_snap;
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unsigned char h_command;
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unsigned char h_vendor_id[3];
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__be16 h_proto; /* packet type ID field */
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/* followed by length octets of data */
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} __packed;
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#define ETHER_HDR_SIZE sizeof(struct ether_hdr)
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struct ieee802_1x_hdr {
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unsigned char version;
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unsigned char type;
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unsigned short length;
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/* followed by length octets of data */
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} __packed;
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enum {
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IEEE802_1X_TYPE_EAP_PACKET = 0,
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IEEE802_1X_TYPE_EAPOL_START = 1,
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IEEE802_1X_TYPE_EAPOL_LOGOFF = 2,
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IEEE802_1X_TYPE_EAPOL_KEY = 3,
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IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT = 4
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};
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#define WPA_NONCE_LEN 32
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#define WPA_REPLAY_COUNTER_LEN 8
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struct wpa_eapol_key {
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unsigned char type;
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__be16 key_info;
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unsigned short key_length;
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unsigned char replay_counter[WPA_REPLAY_COUNTER_LEN];
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unsigned char key_nonce[WPA_NONCE_LEN];
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unsigned char key_iv[16];
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unsigned char key_rsc[8];
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unsigned char key_id[8]; /* Reserved in IEEE 802.11i/RSN */
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unsigned char key_mic[16];
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unsigned short key_data_length;
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/* followed by key_data_length bytes of key_data */
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} __packed;
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#define WPA_KEY_INFO_TYPE_MASK GENMASK(2, 0)
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#define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0)
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#define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1)
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#define WPA_KEY_INFO_KEY_TYPE BIT(3) /* 1 = Pairwise, 0 = Group key */
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/* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */
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#define WPA_KEY_INFO_KEY_INDEX_MASK GENMASK(5, 4)
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#define WPA_KEY_INFO_KEY_INDEX_SHIFT 4
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#define WPA_KEY_INFO_INSTALL BIT(6) /* pairwise */
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#define WPA_KEY_INFO_TXRX BIT(6) /* group */
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#define WPA_KEY_INFO_ACK BIT(7)
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#define WPA_KEY_INFO_MIC BIT(8)
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#define WPA_KEY_INFO_SECURE BIT(9)
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#define WPA_KEY_INFO_ERROR BIT(10)
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#define WPA_KEY_INFO_REQUEST BIT(11)
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#define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12) /* IEEE 802.11i/RSN only */
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#endif /* EAP_PACKET_H */
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