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/* misc. universal things, for libreswan
*
* Copyright (C) 1997 Angelos D. Keromytis.
* Copyright (C) 1998-2001 D. Hugh Redelmeier.
* Copyright (C) 2018-2019 Andrew Cagney <cagney@gnu.org>
*
* 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 _DEFS_H
#define _DEFS_H
#include <limits.h> /* for UINT_MAX */
#include "lswcdefs.h"
#include "lswalloc.h"
#include "realtime.h"
#include "ipsec_spi.h"
/*
* Per-connection unique ID.
*
* Define co_serial_t as an enum so that GCC 10 will detect and
* complain when code attempts to assign the wrong type.
*
* - an enum is always the size of <<signed int> or <<unsigned int>>
* (presumably so that the size of <<enum foo f>> is always known)
*
* - an enum's sign can be signed or unsigned; specifying a UINT_MAX
* value forces it to unsigned
*/
typedef enum { COS_NOBODY = 0, COS_MAX = UINT_MAX, } co_serial_t;
#define PRI_CO "$%u"
#define pri_co(CO) (CO)
#define jam_co(BUF, CO) jam(BUF, PRI_CO, pri_co(CO))
#define pri_connection_co(C) ((C) == NULL ? COS_NOBODY : (C)->serialno)
#define jam_connection_co(BUF, C) jam(BUF, PRI_CO, pri_connection_co(C))
/*
* Type of serial number of a state object.
*
* Used everywhere as a safe proxy for a state object. Needed in
* connections.h and state.h; here to simplify dependencies.
*
* XXX: like co_connection_t, this should be changed to an enum.
* Doing this will require updating all the print statements using
* "#%lu". Sigh.
*/
typedef unsigned long so_serial_t;
#define SOS_NOBODY ((so_serial_t)0) /* null serial number */
#define SOS_FIRST ((so_serial_t)1) /* first normal serial number */
#define PRI_SO "#%lu"
#define pri_so(SO) (SO)
#define jam_so(BUF, SO) jam(BUF, PRI_SO, SO)
typedef uint32_t msgid_t; /* Host byte ordered */
#define PRI_MSGID "%"PRIu32
#define v1_MAINMODE_MSGID ((msgid_t) 0) /* network and host order */
#define v2_FIRST_MSGID ((msgid_t) 0) /* network and host order */
#define v2_INVALID_MSGID ((msgid_t) 0xffffffff) /* network and host order */
/* are all bytes 0? */
extern bool all_zero(const unsigned char *m, size_t len);
/* pad_up(n, m) is the amount to add to n to make it a multiple of m */
#define pad_up(n, m) (((m) - 1) - (((n) + (m) - 1) % (m)))
extern bool in_main_thread(void); /* in plutomain.c */
void delete_lock(void); /* XXX: better home? */
void free_pluto_main(void); /* XXX: better home? */
#endif /* _DEFS_H */
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