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-rw-r--r--src/pluto/demux.h97
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diff --git a/src/pluto/demux.h b/src/pluto/demux.h
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--- a/src/pluto/demux.h
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-/* demultiplex incoming IKE messages
- * Copyright (C) 1998-2002 D. Hugh Redelmeier.
- *
- * 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 <http://www.fsf.org/copyleft/gpl.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 _DEMUX_H
-#define _DEMUX_H
-
-#include "packet.h"
-#include "state.h"
-
-extern void init_demux(void);
-extern bool send_packet(struct state *st, const char *where);
-extern void comm_handle(const struct iface *ifp);
-
-extern u_int8_t reply_buffer[MAX_OUTPUT_UDP_SIZE];
-
-/* State transition function infrastructure
- *
- * com_handle parses a message, decides what state object it applies to,
- * and calls the appropriate state transition function (STF).
- * These declarations define the interface to these functions.
- *
- * Each STF must be able to be restarted up to any failure point:
- * a later message will cause the state to be re-entered. This
- * explains the use of the replace macro and the care in handling
- * MP_INT members of struct state.
- */
-
-struct payload_digest {
- pb_stream pbs;
- union payload payload;
- struct payload_digest *next; /* of same kind */
-};
-
-/* message digest
- * Note: raw_packet and packet_pbs are "owners" of space on heap.
- */
-
-struct msg_digest {
- struct msg_digest *next; /* for free list */
- chunk_t raw_packet; /* if encrypted, received packet before decryption */
- const struct iface *iface; /* interface on which message arrived */
- ip_address sender; /* where message came from */
- u_int16_t sender_port; /* host order */
- pb_stream packet_pbs; /* whole packet */
- pb_stream message_pbs; /* message to be processed */
- struct isakmp_hdr hdr; /* message's header */
- bool encrypted; /* was it encrypted? */
- enum state_kind from_state; /* state we started in */
- const struct state_microcode *smc; /* microcode for initial state */
- struct state *st; /* current state object */
- pb_stream reply; /* room for reply */
- pb_stream rbody; /* room for reply body (after header) */
- notification_t note; /* reason for failure */
- bool dpd; /* peer supports RFC 3706 DPD */
- bool openpgp; /* peer supports OpenPGP certificates */
- bool ms_nt5; /* peer is a windows 2000+ host */
-
-# define PAYLIMIT 40
- struct payload_digest
- digest[PAYLIMIT],
- *digest_roof,
- *chain[ISAKMP_NEXT_ROOF];
- unsigned short nat_traversal_vid;
-};
-
-extern void release_md(struct msg_digest *md);
-
-/* status for state-transition-function
- * Note: STF_FAIL + notification_t means fail with that notification
- */
-
-typedef enum {
- STF_IGNORE, /* don't respond */
- STF_SUSPEND, /* unfinished -- don't release resources */
- STF_OK, /* success */
- STF_INTERNAL_ERROR, /* discard everything, we failed */
- STF_FAIL /* discard everything, something failed. notification_t added. */
-} stf_status;
-
-typedef stf_status state_transition_fn(struct msg_digest *md);
-
-extern void complete_state_transition(struct msg_digest **mdp, stf_status result);
-
-extern void free_md_pool(void);
-
-#endif /* _DEMUX_H */