[openssh.git] / auth-shadow.c

/*
 * Copyright (c) 2004 Darren Tucker.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "includes.h"
RCSID("$Id$");

#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
#include <shadow.h>

#include "auth.h"
#include "buffer.h"
#include "log.h"

#define DAY	(24L * 60 * 60) /* 1 day in seconds */

extern Buffer loginmsg;

/*
 * For the account and password expiration functions, we assume the expiry
 * occurs the day after the day specified.
 */

/*
 * Check if specified account is expired.  Returns 1 if account is expired,
 * 0 otherwise.
 */
int
auth_shadow_acctexpired(struct spwd *spw)
{
	time_t today;
	int daysleft;
	char buf[256];

	today = time(NULL) / DAY;
	daysleft = spw->sp_expire - today;
	debug3("%s: today %d sp_expire %d days left %d", __func__, (int)today,
	    (int)spw->sp_expire, daysleft);

	if (spw->sp_expire == -1) {
		debug3("account expiration disabled");
	} else if (daysleft < 0) {
		logit("Account %.100s has expired", spw->sp_namp);
		return 1;
	} else if (daysleft <= spw->sp_warn) {
		debug3("account will expire in %d days", daysleft);
		snprintf(buf, sizeof(buf),
		    "Your account will expire in %d day%s.\n", daysleft,
		    daysleft == 1 ? "" : "s");
		buffer_append(&loginmsg, buf, strlen(buf));
	}

	return 0;
}

/*
 * Checks password expiry for platforms that use shadow passwd files.
 * Returns: 1 = password expired, 0 = password not expired
 */
int
auth_shadow_pwexpired(Authctxt *ctxt)
{
	struct spwd *spw = NULL;
	const char *user = ctxt->pw->pw_name;
	char buf[256];
	time_t today;
	int daysleft, disabled = 0;

	if ((spw = getspnam((char *)user)) == NULL) {
		error("Could not get shadow information for %.100s", user);
		return 0;
	}

	today = time(NULL) / DAY;
	debug3("%s: today %d sp_lstchg %d sp_max %d", __func__, (int)today,
	    (int)spw->sp_lstchg, (int)spw->sp_max);

#if defined(__hpux) && !defined(HAVE_SECUREWARE)
	if (iscomsec()) {
		struct pr_passwd *pr;
		       
		pr = getprpwnam((char *)user);

		/* Test for Trusted Mode expiry disabled */
		if (pr != NULL && pr->ufld.fd_min == 0 &&
		    pr->ufld.fd_lifetime == 0 && pr->ufld.fd_expire == 0 &&
		    pr->ufld.fd_pw_expire_warning == 0 &&
		    pr->ufld.fd_schange != 0)
			disabled = 1;
	}
#endif

	/* TODO: check sp_inact */
	daysleft = spw->sp_lstchg + spw->sp_max - today;
	if (disabled) {
		debug3("password expiration disabled");
	} else if (spw->sp_lstchg == 0) {
		logit("User %.100s password has expired (root forced)", user);
		return 1;
	} else if (spw->sp_max == -1) {
		debug3("password expiration disabled");
	} else if (daysleft < 0) {
		logit("User %.100s password has expired (password aged)", user);
		return 1;
	} else if (daysleft <= spw->sp_warn) {
		debug3("password will expire in %d days", daysleft);
		snprintf(buf, sizeof(buf),
		    "Your password will expire in %d day%s.\n", daysleft,
		    daysleft == 1 ? "" : "s");
		buffer_append(&loginmsg, buf, strlen(buf));
	}

	return 0;
}
#endif	/* USE_SHADOW && HAS_SHADOW_EXPIRE */
Commit	Line	Data
5a8bd0c3	1	/*
	2	* Copyright (c) 2004 Darren Tucker. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	14	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	15	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	16	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	17	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	18	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	19	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	20	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	21	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	22	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	23	*/
	24
	25	#include "includes.h"
	26	RCSID("$Id$");
	27
d78480be	28	#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
5a8bd0c3	29	#include <shadow.h>
	30
	31	#include "auth.h"
5a8bd0c3	32	#include "buffer.h"
	33	#include "log.h"
	34
	35	#define DAY (24L * 60 * 60) /* 1 day in seconds */
	36
	37	extern Buffer loginmsg;
	38
f14ca4a4	39	/*
	40	* For the account and password expiration functions, we assume the expiry
	41	* occurs the day after the day specified.
	42	*/
	43
	44	/*
	45	* Check if specified account is expired. Returns 1 if account is expired,
	46	* 0 otherwise.
	47	*/
	48	int
	49	auth_shadow_acctexpired(struct spwd *spw)
	50	{
	51	time_t today;
8318c702	52	int daysleft;
8318c702	53	char buf[256];
f14ca4a4	54
f14ca4a4	55	today = time(NULL) / DAY;
8318c702	56	daysleft = spw->sp_expire - today;
	57	debug3("%s: today %d sp_expire %d days left %d", __func__, (int)today,
	58	(int)spw->sp_expire, daysleft);
f14ca4a4	59
8318c702	60	if (spw->sp_expire == -1) {
	61	debug3("account expiration disabled");
	62	} else if (daysleft < 0) {
f14ca4a4	63	logit("Account %.100s has expired", spw->sp_namp);
f14ca4a4	64	return 1;
8318c702	65	} else if (daysleft <= spw->sp_warn) {
	66	debug3("account will expire in %d days", daysleft);
	67	snprintf(buf, sizeof(buf),
	68	"Your account will expire in %d day%s.\n", daysleft,
	69	daysleft == 1 ? "" : "s");
	70	buffer_append(&loginmsg, buf, strlen(buf));
f14ca4a4	71	}
	72
	73	return 0;
	74	}
	75
5a8bd0c3	76	/*
	77	* Checks password expiry for platforms that use shadow passwd files.
	78	* Returns: 1 = password expired, 0 = password not expired
	79	*/
	80	int
	81	auth_shadow_pwexpired(Authctxt *ctxt)
	82	{
	83	struct spwd *spw = NULL;
	84	const char *user = ctxt->pw->pw_name;
8318c702	85	char buf[256];
5a8bd0c3	86	time_t today;
8318c702	87	int daysleft, disabled = 0;
5a8bd0c3	88
8318c702	89	if ((spw = getspnam((char *)user)) == NULL) {
5a8bd0c3	90	error("Could not get shadow information for %.100s", user);
	91	return 0;
	92	}
	93
	94	today = time(NULL) / DAY;
	95	debug3("%s: today %d sp_lstchg %d sp_max %d", __func__, (int)today,
	96	(int)spw->sp_lstchg, (int)spw->sp_max);
	97
	98	#if defined(__hpux) && !defined(HAVE_SECUREWARE)
8318c702	99	if (iscomsec()) {
	100	struct pr_passwd *pr;
	101
	102	pr = getprpwnam((char *)user);
	103
	104	/* Test for Trusted Mode expiry disabled */
	105	if (pr != NULL && pr->ufld.fd_min == 0 &&
	106	pr->ufld.fd_lifetime == 0 && pr->ufld.fd_expire == 0 &&
	107	pr->ufld.fd_pw_expire_warning == 0 &&
	108	pr->ufld.fd_schange != 0)
	109	disabled = 1;
	110	}
5a8bd0c3	111	#endif
5a8bd0c3	112
8318c702	113	/* TODO: check sp_inact */
	114	daysleft = spw->sp_lstchg + spw->sp_max - today;
	115	if (disabled) {
	116	debug3("password expiration disabled");
	117	} else if (spw->sp_lstchg == 0) {
5a8bd0c3	118	logit("User %.100s password has expired (root forced)", user);
5a8bd0c3	119	return 1;
8318c702	120	} else if (spw->sp_max == -1) {
	121	debug3("password expiration disabled");
	122	} else if (daysleft < 0) {
5a8bd0c3	123	logit("User %.100s password has expired (password aged)", user);
5a8bd0c3	124	return 1;
8318c702	125	} else if (daysleft <= spw->sp_warn) {
	126	debug3("password will expire in %d days", daysleft);
	127	snprintf(buf, sizeof(buf),
	128	"Your password will expire in %d day%s.\n", daysleft,
	129	daysleft == 1 ? "" : "s");
	130	buffer_append(&loginmsg, buf, strlen(buf));
5a8bd0c3	131	}
	132
	133	return 0;
	134	}
d78480be	135	#endif /* USE_SHADOW && HAS_SHADOW_EXPIRE */