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Diffstat (limited to 'contrib/hostapd/eap_psk_common.h')
-rw-r--r-- | contrib/hostapd/eap_psk_common.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/contrib/hostapd/eap_psk_common.h b/contrib/hostapd/eap_psk_common.h new file mode 100644 index 0000000..5dd3a10 --- /dev/null +++ b/contrib/hostapd/eap_psk_common.h @@ -0,0 +1,92 @@ +/* + * WPA Supplicant / EAP-PSK shared routines + * Copyright (c) 2004-2005, Jouni Malinen <jkmaline@cc.hut.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Alternatively, this software may be distributed under the terms of BSD + * license. + * + * See README and COPYING for more details. + */ + +#ifndef EAP_PSK_COMMON_H +#define EAP_PSK_COMMON_H + + +#define EAP_PSK_RAND_LEN 16 +#define EAP_PSK_MAC_LEN 16 +#define EAP_PSK_TEK_LEN 16 +#define EAP_PSK_MSK_LEN 64 +#define EAP_PSK_PSK_LEN 16 +#define EAP_PSK_AK_LEN 16 +#define EAP_PSK_KDK_LEN 16 + +#define EAP_PSK_R_FLAG_CONT 1 +#define EAP_PSK_R_FLAG_DONE_SUCCESS 2 +#define EAP_PSK_R_FLAG_DONE_FAILURE 3 +#define EAP_PSK_E_FLAG 0x20 + +/* Shared prefix for all EAP-PSK frames */ +struct eap_psk_hdr { + u8 code; + u8 identifier; + u16 length; /* including code, identifier, and length */ + u8 type; /* EAP_TYPE_PSK */ + u8 flags; +} __attribute__ ((packed)); + +/* EAP-PSK First Message (AS -> Supplicant) */ +struct eap_psk_hdr_1 { + u8 code; + u8 identifier; + u16 length; /* including code, identifier, and length */ + u8 type; /* EAP_TYPE_PSK */ + u8 flags; + u8 rand_s[EAP_PSK_RAND_LEN]; + /* Followed by variable length ID_S */ +} __attribute__ ((packed)); + +/* EAP-PSK Second Message (Supplicant -> AS) */ +struct eap_psk_hdr_2 { + u8 code; + u8 identifier; + u16 length; /* including code, identifier, and length */ + u8 type; /* EAP_TYPE_PSK */ + u8 flags; + u8 rand_s[EAP_PSK_RAND_LEN]; + u8 rand_p[EAP_PSK_RAND_LEN]; + u8 mac_p[EAP_PSK_MAC_LEN]; + /* Followed by variable length ID_P */ +} __attribute__ ((packed)); + +/* EAP-PSK Third Message (AS -> Supplicant) */ +struct eap_psk_hdr_3 { + u8 code; + u8 identifier; + u16 length; /* including code, identifier, and length */ + u8 type; /* EAP_TYPE_PSK */ + u8 flags; + u8 rand_s[EAP_PSK_RAND_LEN]; + u8 mac_s[EAP_PSK_MAC_LEN]; + /* Followed by variable length PCHANNEL */ +} __attribute__ ((packed)); + +/* EAP-PSK Fourth Message (Supplicant -> AS) */ +struct eap_psk_hdr_4 { + u8 code; + u8 identifier; + u16 length; /* including code, identifier, and length */ + u8 type; /* EAP_TYPE_PSK */ + u8 flags; + u8 rand_s[EAP_PSK_RAND_LEN]; + /* Followed by variable length PCHANNEL */ +} __attribute__ ((packed)); + + +void eap_psk_key_setup(const u8 *psk, u8 *ak, u8 *kdk); +void eap_psk_derive_keys(const u8 *kdk, const u8 *rand_p, u8 *tek, u8 *msk); + +#endif /* EAP_PSK_COMMON_H */ |