1 /*
2  * WPA Supplicant - PeerKey for Direct Link Setup (DLS)
3  * Copyright (c) 2006-2015, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #ifndef PEERKEY_H
10 #define PEERKEY_H
11 
12 #define PEERKEY_MAX_IE_LEN 80
13 struct wpa_peerkey {
14 	struct wpa_peerkey *next;
15 	int initiator; /* whether this end was initator for SMK handshake */
16 	u8 addr[ETH_ALEN]; /* other end MAC address */
17 	u8 inonce[WPA_NONCE_LEN]; /* Initiator Nonce */
18 	u8 pnonce[WPA_NONCE_LEN]; /* Peer Nonce */
19 	u8 rsnie_i[PEERKEY_MAX_IE_LEN]; /* Initiator RSN IE */
20 	size_t rsnie_i_len;
21 	u8 rsnie_p[PEERKEY_MAX_IE_LEN]; /* Peer RSN IE */
22 	size_t rsnie_p_len;
23 	u8 smk[PMK_LEN];
24 	int smk_complete;
25 	u8 smkid[PMKID_LEN];
26 	u32 lifetime;
27 	int cipher; /* Selected cipher (WPA_CIPHER_*) */
28 	u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
29 	int replay_counter_set;
30 	int akmp;
31 
32 	struct wpa_ptk stk, tstk;
33 	int stk_set, tstk_set;
34 };
35 
36 
37 #ifdef CONFIG_PEERKEY
38 
39 int peerkey_verify_eapol_key_mic(struct wpa_sm *sm,
40 				 struct wpa_peerkey *peerkey,
41 				 struct wpa_eapol_key_192 *key, u16 ver,
42 				 const u8 *buf, size_t len);
43 void peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey,
44 			   struct wpa_eapol_key *key, u16 key_info, u16 ver,
45 			   const u8 *key_data, size_t key_data_len);
46 void peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr,
47 			  struct wpa_eapol_key *key, size_t extra_len,
48 			  u16 key_info, u16 ver);
49 void peerkey_deinit(struct wpa_sm *sm);
50 
51 #else /* CONFIG_PEERKEY */
52 
53 static inline int
peerkey_verify_eapol_key_mic(struct wpa_sm * sm,struct wpa_peerkey * peerkey,struct wpa_eapol_key * key,u16 ver,const u8 * buf,size_t len)54 peerkey_verify_eapol_key_mic(struct wpa_sm *sm,
55 			     struct wpa_peerkey *peerkey,
56 			     struct wpa_eapol_key *key, u16 ver,
57 			     const u8 *buf, size_t len)
58 {
59 	return -1;
60 }
61 
62 static inline void
peerkey_rx_eapol_4way(struct wpa_sm * sm,struct wpa_peerkey * peerkey,struct wpa_eapol_key * key,u16 key_info,u16 ver,const u8 * key_data,size_t key_data_len)63 peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey,
64 		      struct wpa_eapol_key *key, u16 key_info, u16 ver,
65 		      const u8 *key_data, size_t key_data_len)
66 {
67 }
68 
69 static inline void
peerkey_rx_eapol_smk(struct wpa_sm * sm,const u8 * src_addr,struct wpa_eapol_key * key,size_t extra_len,u16 key_info,u16 ver)70 peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr,
71 		     struct wpa_eapol_key *key, size_t extra_len,
72 		     u16 key_info, u16 ver)
73 {
74 }
75 
peerkey_deinit(struct wpa_sm * sm)76 static inline void peerkey_deinit(struct wpa_sm *sm)
77 {
78 }
79 
80 #endif /* CONFIG_PEERKEY */
81 
82 #endif /* PEERKEY_H */
83