renew.c (7c478bd9) renew.c (69bb4bb4)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident "%Z%%M% %I% %E% SMI"
28
29#include <sys/types.h>
30#include <time.h>
31#include <unistd.h>

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199 * we'll just end up in dhcp_expire(), but it sure sucks.
200 */
201
202 dhcpmsg(MSG_CRIT, "dhcp_rebind: cannot reschedule another "
203 "rebind attempt; lease may expire for %s", ifsp->if_name);
204}
205
206/*
23 * Use is subject to license terms.
24 */
25
26#pragma ident "%Z%%M% %I% %E% SMI"
27
28#include <sys/types.h>
29#include <time.h>
30#include <unistd.h>

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198 * we'll just end up in dhcp_expire(), but it sure sucks.
199 */
200
201 dhcpmsg(MSG_CRIT, "dhcp_rebind: cannot reschedule another "
202 "rebind attempt; lease may expire for %s", ifsp->if_name);
203}
204
205/*
207 * dhcp_restart(): callback function to script_start
206 * dhcp_restart_lease(): callback function to script_start
208 *
209 * input: struct ifslist *: the interface to be restarted
210 * const char *: unused
211 * output: int: always 1
212 */
213
214/* ARGSUSED */
215static int
207 *
208 * input: struct ifslist *: the interface to be restarted
209 * const char *: unused
210 * output: int: always 1
211 */
212
213/* ARGSUSED */
214static int
216dhcp_restart(struct ifslist *ifsp, const char *msg)
215dhcp_restart_lease(struct ifslist *ifsp, const char *msg)
217{
218 dhcpmsg(MSG_INFO, "lease expired on %s -- restarting DHCP",
219 ifsp->if_name);
220
221 /*
222 * in the case where the lease is less than DHCP_REBIND_MIN
223 * seconds, we will never enter dhcp_renew() and thus the packet
224 * counters will not be reset. in that case, reset them here.

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287 * to async_start() while we're actually busy with our own
288 * asynchronous transaction. better than not having a lease.
289 */
290
291 if (async_start(ifsp, DHCP_START, B_FALSE) == 0)
292 dhcpmsg(MSG_WARNING, "dhcp_expire: cannot start asynchronous "
293 "transaction on %s, continuing...", ifsp->if_name);
294
216{
217 dhcpmsg(MSG_INFO, "lease expired on %s -- restarting DHCP",
218 ifsp->if_name);
219
220 /*
221 * in the case where the lease is less than DHCP_REBIND_MIN
222 * seconds, we will never enter dhcp_renew() and thus the packet
223 * counters will not be reset. in that case, reset them here.

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286 * to async_start() while we're actually busy with our own
287 * asynchronous transaction. better than not having a lease.
288 */
289
290 if (async_start(ifsp, DHCP_START, B_FALSE) == 0)
291 dhcpmsg(MSG_WARNING, "dhcp_expire: cannot start asynchronous "
292 "transaction on %s, continuing...", ifsp->if_name);
293
295 (void) script_start(ifsp, EVENT_EXPIRE, dhcp_restart, NULL, NULL);
294 (void) script_start(ifsp, EVENT_EXPIRE, dhcp_restart_lease, NULL, NULL);
296}
297
298/*
299 * dhcp_extending(): sends a REQUEST to extend a lease on a given interface
300 * and registers to receive the ACK/NAK server reply
301 *
302 * input: struct ifslist *: the interface to send the REQUEST on
303 * output: int: 1 if the extension request was sent, 0 otherwise

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295}
296
297/*
298 * dhcp_extending(): sends a REQUEST to extend a lease on a given interface
299 * and registers to receive the ACK/NAK server reply
300 *
301 * input: struct ifslist *: the interface to send the REQUEST on
302 * output: int: 1 if the extension request was sent, 0 otherwise

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