1 /* 2 * IKEv2 responder (RFC 4306) for EAP-IKEV2 3 * Copyright (c) 2007, Jouni Malinen <j@w1.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #ifndef IKEV2_H 16 #define IKEV2_H 17 18 #include "eap_common/ikev2_common.h" 19 20 struct ikev2_proposal_data { 21 u8 proposal_num; 22 int integ; 23 int prf; 24 int encr; 25 int dh; 26 }; 27 28 29 struct ikev2_responder_data { 30 enum { SA_INIT, SA_AUTH, CHILD_SA, NOTIFY, IKEV2_DONE, IKEV2_FAILED } 31 state; 32 u8 i_spi[IKEV2_SPI_LEN]; 33 u8 r_spi[IKEV2_SPI_LEN]; 34 u8 i_nonce[IKEV2_NONCE_MAX_LEN]; 35 size_t i_nonce_len; 36 u8 r_nonce[IKEV2_NONCE_MAX_LEN]; 37 size_t r_nonce_len; 38 struct wpabuf *i_dh_public; 39 struct wpabuf *r_dh_private; 40 struct ikev2_proposal_data proposal; 41 const struct dh_group *dh; 42 struct ikev2_keys keys; 43 u8 *IDi; 44 size_t IDi_len; 45 u8 IDi_type; 46 u8 *IDr; 47 size_t IDr_len; 48 struct wpabuf *r_sign_msg; 49 struct wpabuf *i_sign_msg; 50 u8 *shared_secret; 51 size_t shared_secret_len; 52 enum { PEER_AUTH_CERT, PEER_AUTH_SECRET } peer_auth; 53 u8 *key_pad; 54 size_t key_pad_len; 55 u16 error_type; 56 enum { LAST_MSG_SA_INIT, LAST_MSG_SA_AUTH } last_msg; 57 }; 58 59 60 void ikev2_responder_deinit(struct ikev2_responder_data *data); 61 int ikev2_responder_process(struct ikev2_responder_data *data, 62 const struct wpabuf *buf); 63 struct wpabuf * ikev2_responder_build(struct ikev2_responder_data *data); 64 65 #endif /* IKEV2_H */ 66