1 /* 2 * IKEv2 responder (RFC 4306) for EAP-IKEV2 3 * Copyright (c) 2007, 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 IKEV2_H 10 #define IKEV2_H 11 12 #include "eap_common/ikev2_common.h" 13 14 struct ikev2_proposal_data { 15 u8 proposal_num; 16 int integ; 17 int prf; 18 int encr; 19 int dh; 20 }; 21 22 23 struct ikev2_responder_data { 24 enum { SA_INIT, SA_AUTH, CHILD_SA, NOTIFY, IKEV2_DONE, IKEV2_FAILED } 25 state; 26 u8 i_spi[IKEV2_SPI_LEN]; 27 u8 r_spi[IKEV2_SPI_LEN]; 28 u8 i_nonce[IKEV2_NONCE_MAX_LEN]; 29 size_t i_nonce_len; 30 u8 r_nonce[IKEV2_NONCE_MAX_LEN]; 31 size_t r_nonce_len; 32 struct wpabuf *i_dh_public; 33 struct wpabuf *r_dh_private; 34 struct ikev2_proposal_data proposal; 35 const struct dh_group *dh; 36 struct ikev2_keys keys; 37 u8 *IDi; 38 size_t IDi_len; 39 u8 IDi_type; 40 u8 *IDr; 41 size_t IDr_len; 42 struct wpabuf *r_sign_msg; 43 struct wpabuf *i_sign_msg; 44 u8 *shared_secret; 45 size_t shared_secret_len; 46 enum { PEER_AUTH_CERT, PEER_AUTH_SECRET } peer_auth; 47 u8 *key_pad; 48 size_t key_pad_len; 49 u16 error_type; 50 enum { LAST_MSG_SA_INIT, LAST_MSG_SA_AUTH } last_msg; 51 }; 52 53 54 void ikev2_responder_deinit(struct ikev2_responder_data *data); 55 int ikev2_responder_process(struct ikev2_responder_data *data, 56 const struct wpabuf *buf); 57 struct wpabuf * ikev2_responder_build(struct ikev2_responder_data *data); 58 59 #endif /* IKEV2_H */ 60