[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"

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

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

#ifdef DAY
# undef DAY
#endif
#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"
5a8bd0c3	26
d78480be	27	#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
5a8bd0c3	28	#include <shadow.h>
28cb0a43	29	#include <string.h>
5a8bd0c3	30
5a8bd0c3	31	#include "auth.h"
5a8bd0c3	32	#include "buffer.h"
	33	#include "log.h"
	34
f83b0f6a	35	#ifdef DAY
	36	# undef DAY
	37	#endif
5a8bd0c3	38	#define DAY (24L * 60 * 60) /* 1 day in seconds */
	39
	40	extern Buffer loginmsg;
	41
f14ca4a4	42	/*
	43	* For the account and password expiration functions, we assume the expiry
	44	* occurs the day after the day specified.
	45	*/
	46
	47	/*
	48	* Check if specified account is expired. Returns 1 if account is expired,
	49	* 0 otherwise.
	50	*/
	51	int
	52	auth_shadow_acctexpired(struct spwd *spw)
	53	{
	54	time_t today;
8318c702	55	int daysleft;
8318c702	56	char buf[256];
f14ca4a4	57
f14ca4a4	58	today = time(NULL) / DAY;
8318c702	59	daysleft = spw->sp_expire - today;
	60	debug3("%s: today %d sp_expire %d days left %d", __func__, (int)today,
	61	(int)spw->sp_expire, daysleft);
f14ca4a4	62
8318c702	63	if (spw->sp_expire == -1) {
	64	debug3("account expiration disabled");
	65	} else if (daysleft < 0) {
f14ca4a4	66	logit("Account %.100s has expired", spw->sp_namp);
f14ca4a4	67	return 1;
8318c702	68	} else if (daysleft <= spw->sp_warn) {
	69	debug3("account will expire in %d days", daysleft);
	70	snprintf(buf, sizeof(buf),
	71	"Your account will expire in %d day%s.\n", daysleft,
	72	daysleft == 1 ? "" : "s");
	73	buffer_append(&loginmsg, buf, strlen(buf));
f14ca4a4	74	}
	75
	76	return 0;
	77	}
	78
5a8bd0c3	79	/*
	80	* Checks password expiry for platforms that use shadow passwd files.
	81	* Returns: 1 = password expired, 0 = password not expired
	82	*/
	83	int
	84	auth_shadow_pwexpired(Authctxt *ctxt)
	85	{
	86	struct spwd *spw = NULL;
	87	const char *user = ctxt->pw->pw_name;
8318c702	88	char buf[256];
5a8bd0c3	89	time_t today;
8318c702	90	int daysleft, disabled = 0;
5a8bd0c3	91
8318c702	92	if ((spw = getspnam((char *)user)) == NULL) {
5a8bd0c3	93	error("Could not get shadow information for %.100s", user);
	94	return 0;
	95	}
	96
	97	today = time(NULL) / DAY;
	98	debug3("%s: today %d sp_lstchg %d sp_max %d", __func__, (int)today,
	99	(int)spw->sp_lstchg, (int)spw->sp_max);
	100
	101	#if defined(__hpux) && !defined(HAVE_SECUREWARE)
8318c702	102	if (iscomsec()) {
8318c702	103	struct pr_passwd *pr;
d1cf9a87	104
8318c702	105	pr = getprpwnam((char *)user);
	106
	107	/* Test for Trusted Mode expiry disabled */
	108	if (pr != NULL && pr->ufld.fd_min == 0 &&
	109	pr->ufld.fd_lifetime == 0 && pr->ufld.fd_expire == 0 &&
	110	pr->ufld.fd_pw_expire_warning == 0 &&
	111	pr->ufld.fd_schange != 0)
	112	disabled = 1;
	113	}
5a8bd0c3	114	#endif
5a8bd0c3	115
8318c702	116	/* TODO: check sp_inact */
	117	daysleft = spw->sp_lstchg + spw->sp_max - today;
	118	if (disabled) {
	119	debug3("password expiration disabled");
	120	} else if (spw->sp_lstchg == 0) {
5a8bd0c3	121	logit("User %.100s password has expired (root forced)", user);
5a8bd0c3	122	return 1;
8318c702	123	} else if (spw->sp_max == -1) {
	124	debug3("password expiration disabled");
	125	} else if (daysleft < 0) {
5a8bd0c3	126	logit("User %.100s password has expired (password aged)", user);
5a8bd0c3	127	return 1;
8318c702	128	} else if (daysleft <= spw->sp_warn) {
	129	debug3("password will expire in %d days", daysleft);
	130	snprintf(buf, sizeof(buf),
	131	"Your password will expire in %d day%s.\n", daysleft,
	132	daysleft == 1 ? "" : "s");
	133	buffer_append(&loginmsg, buf, strlen(buf));
5a8bd0c3	134	}
	135
	136	return 0;
	137	}
d78480be	138	#endif /* USE_SHADOW && HAS_SHADOW_EXPIRE */