d4af9e693f
I have worked hard to reduce diffs against the vendor branch. One notable change in that respect is that we no longer prefer DSA over RSA - the reasons for doing so went away years ago. This may cause some surprises, as ssh will warn about unknown host keys even for hosts whose keys haven't changed. MFC after: 6 weeks
143 lines
4.2 KiB
C
143 lines
4.2 KiB
C
/*
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* Copyright (c) 2004 Darren Tucker. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "includes.h"
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#if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE)
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#include <shadow.h>
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#include <stdarg.h>
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#include <string.h>
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#include <time.h>
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#include "key.h"
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#include "hostfile.h"
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#include "auth.h"
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#include "buffer.h"
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#include "log.h"
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#ifdef DAY
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# undef DAY
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#endif
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#define DAY (24L * 60 * 60) /* 1 day in seconds */
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extern Buffer loginmsg;
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/*
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* For the account and password expiration functions, we assume the expiry
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* occurs the day after the day specified.
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*/
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/*
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* Check if specified account is expired. Returns 1 if account is expired,
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* 0 otherwise.
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*/
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int
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auth_shadow_acctexpired(struct spwd *spw)
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{
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time_t today;
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int daysleft;
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char buf[256];
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today = time(NULL) / DAY;
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daysleft = spw->sp_expire - today;
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debug3("%s: today %d sp_expire %d days left %d", __func__, (int)today,
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(int)spw->sp_expire, daysleft);
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if (spw->sp_expire == -1) {
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debug3("account expiration disabled");
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} else if (daysleft < 0) {
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logit("Account %.100s has expired", spw->sp_namp);
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return 1;
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} else if (daysleft <= spw->sp_warn) {
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debug3("account will expire in %d days", daysleft);
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snprintf(buf, sizeof(buf),
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"Your account will expire in %d day%s.\n", daysleft,
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daysleft == 1 ? "" : "s");
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buffer_append(&loginmsg, buf, strlen(buf));
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}
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return 0;
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}
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/*
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* Checks password expiry for platforms that use shadow passwd files.
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* Returns: 1 = password expired, 0 = password not expired
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*/
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int
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auth_shadow_pwexpired(Authctxt *ctxt)
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{
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struct spwd *spw = NULL;
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const char *user = ctxt->pw->pw_name;
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char buf[256];
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time_t today;
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int daysleft, disabled = 0;
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if ((spw = getspnam((char *)user)) == NULL) {
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error("Could not get shadow information for %.100s", user);
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return 0;
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}
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today = time(NULL) / DAY;
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debug3("%s: today %d sp_lstchg %d sp_max %d", __func__, (int)today,
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(int)spw->sp_lstchg, (int)spw->sp_max);
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#if defined(__hpux) && !defined(HAVE_SECUREWARE)
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if (iscomsec()) {
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struct pr_passwd *pr;
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pr = getprpwnam((char *)user);
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/* Test for Trusted Mode expiry disabled */
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if (pr != NULL && pr->ufld.fd_min == 0 &&
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pr->ufld.fd_lifetime == 0 && pr->ufld.fd_expire == 0 &&
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pr->ufld.fd_pw_expire_warning == 0 &&
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pr->ufld.fd_schange != 0)
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disabled = 1;
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}
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#endif
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/* TODO: check sp_inact */
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daysleft = spw->sp_lstchg + spw->sp_max - today;
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if (disabled) {
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debug3("password expiration disabled");
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} else if (spw->sp_lstchg == 0) {
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logit("User %.100s password has expired (root forced)", user);
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return 1;
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} else if (spw->sp_max == -1) {
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debug3("password expiration disabled");
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} else if (daysleft < 0) {
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logit("User %.100s password has expired (password aged)", user);
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return 1;
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} else if (daysleft <= spw->sp_warn) {
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debug3("password will expire in %d days", daysleft);
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snprintf(buf, sizeof(buf),
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"Your password will expire in %d day%s.\n", daysleft,
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daysleft == 1 ? "" : "s");
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buffer_append(&loginmsg, buf, strlen(buf));
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}
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return 0;
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}
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#endif /* USE_SHADOW && HAS_SHADOW_EXPIRE */
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