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/* whack communicating routines, for libreswan
*
* Copyright (C) 1997 Angelos D. Keromytis.
* Copyright (C) 1998-2001,2013-2016 D. Hugh Redelmeier <hugh@mimosa.com>
* Copyright (C) 2003-2008 Michael Richardson <mcr@xelerance.com>
* Copyright (C) 2003-2010 Paul Wouters <paul@xelerance.com>
* Copyright (C) 2009 Avesh Agarwal <avagarwa@redhat.com>
* Copyright (C) 2010 David McCullough <david_mccullough@securecomputing.com>
* Copyright (C) 2011 Mika Ilmaranta <ilmis@foobar.fi>
* Copyright (C) 2012-2013 Paul Wouters <paul@libreswan.org>
* Copyright (C) 2014-2020 Paul Wouters <pwouters@redhat.com>
* Copyright (C) 2014-2017 Antony Antony <antony@phenome.org>
* Copyright (C) 2019-2023 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.
*/
#include "whack_crash.h"
#include "defs.h"
#include "state.h"
#include "log.h"
#include "show.h"
#include "connections.h"
#include "ikev1_replace.h"
#include "ikev2_replace.h"
#include "timer.h"
/*
* Walk through the state table, and delete each state whose phase 1 (IKE)
* peer is among those given.
* This function is only called for ipsec whack --crash peer
*/
static void delete_states_by_peer(struct show *s, const ip_address *peer)
{
/* note: peer_buf and peerstr at same scope */
address_buf peer_buf;
const char *peerstr = str_address(peer, &peer_buf);
whack_log(RC_LOG, s, "restarting peer %s", peerstr);
/* first restart the phase1s */
for (int ph1 = 0; ph1 < 2; ph1++) {
struct state_filter sf = {
.search = {
.order = NEW2OLD,
.verbose.logger = &global_logger,
.where = HERE,
},
};
while (next_state(&sf)) {
struct state *st = sf.st;
const struct connection *c = st->st_connection;
endpoint_buf b;
dbg("comparing %s to %s",
str_endpoint(&st->st_remote_endpoint, &b),
peerstr);
if (peer != NULL /* ever false? */ &&
endpoint_address_eq_address(st->st_remote_endpoint, *peer)) {
if (ph1 == 0 && IS_IKE_SA(st)) {
whack_log(RC_LOG, s,
"peer %s for connection %s crashed; replacing",
peerstr,
c->name);
switch (st->st_ike_version) {
#ifdef USE_IKEv1
case IKEv1:
ikev1_replace(st);
break;
#endif
case IKEv2:
ikev2_replace(st, /*background*/false);
break;
}
} else {
event_force(c->config->ike_info->replace_event, st);
}
}
}
}
}
void whack_crash(const struct whack_message *m, struct show *s)
{
delete_states_by_peer(s, &m->whack_crash_peer);
}
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