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/* IKEv2 message routines, for Libreswan
*
* Copyright (C) 2018 Andrew Cagney
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/gpl2.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef IKEV2_MESSAGE_H
#define IKEV2_MESSAGE_H
#include "chunk.h"
#include "packet.h" /* for pb_stream */
struct msg_digest;
struct dh_desc;
struct ike_sa;
struct state;
struct end;
pb_stream open_v2_message(pb_stream *reply,
struct ike_sa *ike, struct msg_digest *md,
enum isakmp_xchg_types exchange_type);
typedef struct {
struct logger *logger;
struct ike_sa *ike;
pb_stream pbs; /* within SK */
/* pointers into SK header+contents */
chunk_t payload; /* header+iv+cleartext+padding+integrity */
/* chunk_t header; */
chunk_t iv;
chunk_t cleartext;
/* chunk_t padding; */
chunk_t integrity;
} v2SK_payload_t;
v2SK_payload_t open_v2SK_payload(struct logger *logger,
pb_stream *container,
struct ike_sa *st);
bool close_v2SK_payload(v2SK_payload_t *sk);
stf_status encrypt_v2SK_payload(v2SK_payload_t *sk);
stf_status record_v2SK_message(struct pbs_out *msg,
v2SK_payload_t *sk,
const char *what,
enum message_role message);
uint8_t build_ikev2_critical(bool impair, struct logger *logger);
bool ikev2_collect_fragment(struct msg_digest *md, struct ike_sa *ike);
bool ikev2_decrypt_msg(struct ike_sa *ike, struct msg_digest *md);
struct ikev2_id build_v2_id_payload(const struct end *end, shunk_t *body,
const char *what, struct logger *logger);
#endif
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