[gssapi-openssh.git] / openssh / 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 <stdarg.h>
#include <string.h>
#include <time.h>

#include "key.h"
#include "hostfile.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
bbf3a7a8	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"
bbf3a7a8	26
	27	#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
	28	#include <shadow.h>
30460aeb	29	#include <stdarg.h>
30460aeb	30	#include <string.h>
fa0f0f45	31	#include <time.h>
bbf3a7a8	32
30460aeb	33	#include "key.h"
30460aeb	34	#include "hostfile.h"
bbf3a7a8	35	#include "auth.h"
	36	#include "buffer.h"
	37	#include "log.h"
	38
dfddba3d	39	#ifdef DAY
	40	# undef DAY
	41	#endif
bbf3a7a8	42	#define DAY (24L * 60 * 60) /* 1 day in seconds */
	43
	44	extern Buffer loginmsg;
	45
	46	/*
	47	* For the account and password expiration functions, we assume the expiry
	48	* occurs the day after the day specified.
	49	*/
	50
	51	/*
	52	* Check if specified account is expired. Returns 1 if account is expired,
	53	* 0 otherwise.
	54	*/
	55	int
	56	auth_shadow_acctexpired(struct spwd *spw)
	57	{
	58	time_t today;
	59	int daysleft;
	60	char buf[256];
	61
	62	today = time(NULL) / DAY;
	63	daysleft = spw->sp_expire - today;
	64	debug3("%s: today %d sp_expire %d days left %d", __func__, (int)today,
	65	(int)spw->sp_expire, daysleft);
	66
	67	if (spw->sp_expire == -1) {
	68	debug3("account expiration disabled");
	69	} else if (daysleft < 0) {
	70	logit("Account %.100s has expired", spw->sp_namp);
	71	return 1;
	72	} else if (daysleft <= spw->sp_warn) {
	73	debug3("account will expire in %d days", daysleft);
	74	snprintf(buf, sizeof(buf),
	75	"Your account will expire in %d day%s.\n", daysleft,
	76	daysleft == 1 ? "" : "s");
	77	buffer_append(&loginmsg, buf, strlen(buf));
	78	}
	79
	80	return 0;
	81	}
	82
	83	/*
	84	* Checks password expiry for platforms that use shadow passwd files.
	85	* Returns: 1 = password expired, 0 = password not expired
	86	*/
	87	int
	88	auth_shadow_pwexpired(Authctxt *ctxt)
	89	{
	90	struct spwd *spw = NULL;
	91	const char *user = ctxt->pw->pw_name;
	92	char buf[256];
	93	time_t today;
	94	int daysleft, disabled = 0;
	95
	96	if ((spw = getspnam((char *)user)) == NULL) {
	97	error("Could not get shadow information for %.100s", user);
	98	return 0;
	99	}
	100
	101	today = time(NULL) / DAY;
	102	debug3("%s: today %d sp_lstchg %d sp_max %d", __func__, (int)today,
	103	(int)spw->sp_lstchg, (int)spw->sp_max);
	104
	105	#if defined(__hpux) && !defined(HAVE_SECUREWARE)
106	if (iscomsec()) {
107	struct pr_passwd *pr;
2ce0bfe4	108
bbf3a7a8	109	pr = getprpwnam((char *)user);
	110
	111	/* Test for Trusted Mode expiry disabled */
	112	if (pr != NULL && pr->ufld.fd_min == 0 &&
	113	pr->ufld.fd_lifetime == 0 && pr->ufld.fd_expire == 0 &&
	114	pr->ufld.fd_pw_expire_warning == 0 &&
	115	pr->ufld.fd_schange != 0)
	116	disabled = 1;
	117	}
	118	#endif
	119
	120	/* TODO: check sp_inact */
	121	daysleft = spw->sp_lstchg + spw->sp_max - today;
	122	if (disabled) {
	123	debug3("password expiration disabled");
	124	} else if (spw->sp_lstchg == 0) {
	125	logit("User %.100s password has expired (root forced)", user);
	126	return 1;
	127	} else if (spw->sp_max == -1) {
	128	debug3("password expiration disabled");
	129	} else if (daysleft < 0) {
	130	logit("User %.100s password has expired (password aged)", user);
	131	return 1;
	132	} else if (daysleft <= spw->sp_warn) {
	133	debug3("password will expire in %d days", daysleft);
	134	snprintf(buf, sizeof(buf),
	135	"Your password will expire in %d day%s.\n", daysleft,
	136	daysleft == 1 ? "" : "s");
	137	buffer_append(&loginmsg, buf, strlen(buf));
	138	}
	139
	140	return 0;
	141	}
	142	#endif /* USE_SHADOW && HAS_SHADOW_EXPIRE */