cda97d11bb
Move the basic processing of received frames into eap_tls_common.c and use callback functions to handle EAP type specific processing of the version field and payload.
64 lines
2 KiB
C
64 lines
2 KiB
C
/*
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* hostapd / EAP-TLS/PEAP/TTLS/FAST common functions
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* Copyright (c) 2004-2008, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef EAP_TLS_COMMON_H
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#define EAP_TLS_COMMON_H
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struct eap_ssl_data {
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struct tls_connection *conn;
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size_t tls_out_limit;
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int phase2;
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struct eap_sm *eap;
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enum { MSG, FRAG_ACK, WAIT_FRAG_ACK } state;
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struct wpabuf *in_buf;
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struct wpabuf *out_buf;
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size_t out_used;
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struct wpabuf tmpbuf;
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};
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/* EAP TLS Flags */
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#define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80
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#define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40
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#define EAP_TLS_FLAGS_START 0x20
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#define EAP_TLS_VERSION_MASK 0x07
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/* could be up to 128 bytes, but only the first 64 bytes are used */
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#define EAP_TLS_KEY_LEN 64
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int eap_server_tls_ssl_init(struct eap_sm *sm, struct eap_ssl_data *data,
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int verify_peer);
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void eap_server_tls_ssl_deinit(struct eap_sm *sm, struct eap_ssl_data *data);
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u8 * eap_server_tls_derive_key(struct eap_sm *sm, struct eap_ssl_data *data,
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char *label, size_t len);
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struct wpabuf * eap_server_tls_build_msg(struct eap_ssl_data *data,
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int eap_type, int version, u8 id);
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struct wpabuf * eap_server_tls_build_ack(u8 id, int eap_type, int version);
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int eap_server_tls_phase1(struct eap_sm *sm, struct eap_ssl_data *data);
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struct wpabuf * eap_server_tls_encrypt(struct eap_sm *sm,
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struct eap_ssl_data *data,
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const u8 *plain, size_t plain_len);
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int eap_server_tls_process(struct eap_sm *sm, struct eap_ssl_data *data,
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struct wpabuf *respData, void *priv, int eap_type,
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int (*proc_version)(struct eap_sm *sm, void *priv,
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int peer_version),
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void (*proc_msg)(struct eap_sm *sm, void *priv,
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const struct wpabuf *respData));
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#endif /* EAP_TLS_COMMON_H */
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