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/*
* 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 "hostfile.h"
#include "auth.h"
#include "sshbuf.h"
#include "ssherr.h"
#include "log.h"
#ifdef DAY
# undef DAY
#endif
#define DAY (24L * 60 * 60) /* 1 day in seconds */
extern struct sshbuf *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;
int r;
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);
if ((r = sshbuf_putf(loginmsg,
"Your account will expire in %d day%s.\n", daysleft,
daysleft == 1 ? "" : "s")) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
}
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;
time_t today;
int r, 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);
if ((r = sshbuf_putf(loginmsg,
"Your password will expire in %d day%s.\n", daysleft,
daysleft == 1 ? "" : "s")) != 0)
fatal("%s: buffer error: %s", __func__, ssh_err(r));
}
return 0;
}
#endif /* USE_SHADOW && HAS_SHADOW_EXPIRE */
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