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/* State table indexed by serialno, for libreswan
*
* Copyright (C) 2017-2019 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 STATE_DB_H
#define STATE_DB_H
#include "ike_spi.h"
#include "reqid.h"
struct state;
struct connection;
struct list_entry;
void init_state_db(void);
void add_state_to_db(struct state *st);
void rehash_state_cookies_in_db(struct state *st);
void del_state_from_db(struct state *st);
struct state *state_by_serialno(so_serial_t serialno);
struct ike_sa *ike_sa_by_serialno(so_serial_t serialno);
struct child_sa *child_sa_by_serialno(so_serial_t serialno);
/*
* List of all valid states; can be iterated in old-to-new and
* new-to-old order.
*/
extern struct list_head state_serialno_list_head;
#define FOR_EACH_STATE_NEW2OLD(ST) \
FOR_EACH_LIST_ENTRY_NEW2OLD(&state_serialno_list_head, ST)
#define FOR_EACH_STATE_OLD2NEW(ST) \
FOR_EACH_LIST_ENTRY_OLD2NEW(&state_serialno_list_head, ST)
/*
* Lookup and generic search functions.
*/
struct state *state_by_ike_initiator_spi(enum ike_version ike_version,
const so_serial_t *clonedfrom,
const msgid_t *v1_msgid, /* optional */
const enum sa_role *role, /*optional*/
const ike_spi_t *ike_initiator_spi,
const char *reason);
typedef bool (state_by_predicate)(struct state *st, void *context);
struct state *state_by_ike_spis(enum ike_version ike_version,
const so_serial_t *clonedfrom,
const msgid_t *v1_msgid, /*optional*/
const enum sa_role *role, /*optional*/
const ike_spis_t *ike_spis,
state_by_predicate *predicate /*optional*/,
void *predicate_context,
const char *reason);
struct state *state_by_connection(struct connection *c,
state_by_predicate *predicate /*optional*/,
void *predicate_context,
const char *reason);
void rehash_state_connection(struct state *st);
struct state *state_by_reqid(reqid_t reqid,
state_by_predicate *predicate /*optional*/,
void *predicate_context,
const char *reason);
void rehash_state_reqid(struct state *st);
#endif
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