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Damien Millerd4a8b7e1999-10-27 13:42:43 +10001/*
Damien Miller95def091999-11-25 00:26:21 +11002 * Author: Tatu Ylonen <ylo@cs.hut.fi>
Damien Miller95def091999-11-25 00:26:21 +11003 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
4 * All rights reserved
Damien Miller95def091999-11-25 00:26:21 +11005 * This file performs some of the things login(1) normally does. We cannot
6 * easily use something like login -p -h host -f user, because there are
7 * several different logins around, and it is hard to determined what kind of
8 * login the current system has. Also, we want to be able to execute commands
9 * on a tty.
Damien Miller4af51302000-04-16 11:18:38 +100010 *
Damien Millere4340be2000-09-16 13:29:08 +110011 * As far as I am concerned, the code I have written for this software
12 * can be used freely for any purpose. Any derived versions of this
13 * software must be clearly marked as such, and if the derived work is
14 * incompatible with the protocol description in the RFC file, it must be
15 * called by a name other than "ssh" or "Secure Shell".
16 *
17 * Copyright (c) 1999 Theo de Raadt. All rights reserved.
18 * Copyright (c) 1999 Markus Friedl. All rights reserved.
19 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
30 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
31 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
32 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
33 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
34 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
38 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Damien Miller95def091999-11-25 00:26:21 +110039 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100040
41#include "includes.h"
Ben Lindstrom5c385522002-06-23 21:23:20 +000042RCSID("$OpenBSD: sshlogin.c,v 1.4 2002/06/23 03:30:17 deraadt Exp $");
Damien Millerd4a8b7e1999-10-27 13:42:43 +100043
andre2ff7b5d2000-06-03 14:57:40 +000044#include "loginrec.h"
Damien Miller2f6a0ad2000-05-31 11:20:11 +100045
Damien Miller5428f641999-11-25 11:54:57 +110046/*
47 * Returns the time when the user last logged in. Returns 0 if the
48 * information is not available. This must be called before record_login.
49 * The host the user logged in from will be returned in buf.
50 */
Ben Lindstrom46c16222000-12-22 01:43:59 +000051u_long
Damien Miller95def091999-11-25 00:26:21 +110052get_last_login_time(uid_t uid, const char *logname,
Ben Lindstrom5c385522002-06-23 21:23:20 +000053 char *buf, u_int bufsize)
Damien Millerd4a8b7e1999-10-27 13:42:43 +100054{
andre2ff7b5d2000-06-03 14:57:40 +000055 struct logininfo li;
Damien Millerd4a8b7e1999-10-27 13:42:43 +100056
andre61e67252000-06-04 17:07:49 +000057 login_get_lastlog(&li, uid);
58 strlcpy(buf, li.hostname, bufsize);
andre2ff7b5d2000-06-03 14:57:40 +000059 return li.tv_sec;
Damien Millerd4a8b7e1999-10-27 13:42:43 +100060}
61
Damien Miller5428f641999-11-25 11:54:57 +110062/*
andre2ff7b5d2000-06-03 14:57:40 +000063 * Records that the user has logged in. I these parts of operating systems
64 * were more standardized.
Damien Miller5428f641999-11-25 11:54:57 +110065 */
Damien Miller4af51302000-04-16 11:18:38 +100066void
Damien Miller166fca82000-04-20 07:42:21 +100067record_login(pid_t pid, const char *ttyname, const char *user, uid_t uid,
Ben Lindstrom5c385522002-06-23 21:23:20 +000068 const char *host, struct sockaddr * addr)
Damien Millerd4a8b7e1999-10-27 13:42:43 +100069{
andre2ff7b5d2000-06-03 14:57:40 +000070 struct logininfo *li;
Damien Millerd4a8b7e1999-10-27 13:42:43 +100071
andre2ff7b5d2000-06-03 14:57:40 +000072 li = login_alloc_entry(pid, user, host, ttyname);
andre61e67252000-06-04 17:07:49 +000073 login_set_addr(li, addr, sizeof(struct sockaddr));
andre2ff7b5d2000-06-03 14:57:40 +000074 login_login(li);
75 login_free_entry(li);
Damien Millerd4a8b7e1999-10-27 13:42:43 +100076}
Damien Miller95def091999-11-25 00:26:21 +110077
Ben Lindstrom97c677d2001-05-08 20:33:05 +000078#ifdef LOGIN_NEEDS_UTMPX
79void
80record_utmp_only(pid_t pid, const char *ttyname, const char *user,
81 const char *host, struct sockaddr * addr)
82{
83 struct logininfo *li;
84
85 li = login_alloc_entry(pid, user, host, ttyname);
86 login_set_addr(li, addr, sizeof(struct sockaddr));
87 login_utmp_only(li);
88 login_free_entry(li);
89}
90#endif
91
Damien Miller95def091999-11-25 00:26:21 +110092/* Records that the user has logged out. */
Damien Miller4af51302000-04-16 11:18:38 +100093void
Tim Ricee06ae4a2002-02-24 17:56:46 -080094record_logout(pid_t pid, const char *ttyname, const char *user)
Damien Millerd4a8b7e1999-10-27 13:42:43 +100095{
andre2ff7b5d2000-06-03 14:57:40 +000096 struct logininfo *li;
97
Tim Ricee06ae4a2002-02-24 17:56:46 -080098 li = login_alloc_entry(pid, user, NULL, ttyname);
andre2ff7b5d2000-06-03 14:57:40 +000099 login_logout(li);
100 login_free_entry(li);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000101}