1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef EAP_PACKET_H |
3 | #define EAP_PACKET_H |
4 | |
5 | #include <linux/compiler.h> |
6 | #include <linux/bitops.h> |
7 | #include <uapi/linux/if_ether.h> |
8 | |
9 | struct ether_hdr { |
10 | unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ |
11 | unsigned char h_source[ETH_ALEN]; /* source ether addr */ |
12 | unsigned char h_dest_snap; |
13 | unsigned char h_source_snap; |
14 | unsigned char h_command; |
15 | unsigned char h_vendor_id[3]; |
16 | __be16 h_proto; /* packet type ID field */ |
17 | /* followed by length octets of data */ |
18 | } __packed; |
19 | |
20 | #define ETHER_HDR_SIZE sizeof(struct ether_hdr) |
21 | |
22 | struct ieee802_1x_hdr { |
23 | unsigned char version; |
24 | unsigned char type; |
25 | unsigned short length; |
26 | /* followed by length octets of data */ |
27 | } __packed; |
28 | |
29 | enum { |
30 | IEEE802_1X_TYPE_EAP_PACKET = 0, |
31 | IEEE802_1X_TYPE_EAPOL_START = 1, |
32 | IEEE802_1X_TYPE_EAPOL_LOGOFF = 2, |
33 | IEEE802_1X_TYPE_EAPOL_KEY = 3, |
34 | IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT = 4 |
35 | }; |
36 | |
37 | #define WPA_NONCE_LEN 32 |
38 | #define WPA_REPLAY_COUNTER_LEN 8 |
39 | |
40 | struct wpa_eapol_key { |
41 | unsigned char type; |
42 | __be16 key_info; |
43 | unsigned short key_length; |
44 | unsigned char replay_counter[WPA_REPLAY_COUNTER_LEN]; |
45 | unsigned char key_nonce[WPA_NONCE_LEN]; |
46 | unsigned char key_iv[16]; |
47 | unsigned char key_rsc[8]; |
48 | unsigned char key_id[8]; /* Reserved in IEEE 802.11i/RSN */ |
49 | unsigned char key_mic[16]; |
50 | unsigned short key_data_length; |
51 | /* followed by key_data_length bytes of key_data */ |
52 | } __packed; |
53 | |
54 | #define WPA_KEY_INFO_TYPE_MASK GENMASK(2, 0) |
55 | #define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0) |
56 | #define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1) |
57 | #define WPA_KEY_INFO_KEY_TYPE BIT(3) /* 1 = Pairwise, 0 = Group key */ |
58 | /* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */ |
59 | #define WPA_KEY_INFO_KEY_INDEX_MASK GENMASK(5, 4) |
60 | #define WPA_KEY_INFO_KEY_INDEX_SHIFT 4 |
61 | #define WPA_KEY_INFO_INSTALL BIT(6) /* pairwise */ |
62 | #define WPA_KEY_INFO_TXRX BIT(6) /* group */ |
63 | #define WPA_KEY_INFO_ACK BIT(7) |
64 | #define WPA_KEY_INFO_MIC BIT(8) |
65 | #define WPA_KEY_INFO_SECURE BIT(9) |
66 | #define WPA_KEY_INFO_ERROR BIT(10) |
67 | #define WPA_KEY_INFO_REQUEST BIT(11) |
68 | #define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12) /* IEEE 802.11i/RSN only */ |
69 | |
70 | #endif /* EAP_PACKET_H */ |
71 | |