2 * Copyright (c) 2002 Danny Braniss
4 * Copyright (c) 2001,2002 Networks Associates Technology, Inc.
7 * Portions of this software were developed for the FreeBSD Project by
8 * ThinkSec AS and NAI Labs, the Security Research Division of Network
9 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
10 * ("CBOSS"), as part of the DARPA CHATS research program.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. The name of the author may not be used to endorse or promote
21 * products derived from this software without specific prior written
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * $FreeBSD: src/lib/libpam/modules/pam_rhosts/pam_rhosts.c,v 1.3 2003/12/11 13:55:16 des Exp $
45 #include <security/pam_appl.h>
46 #include <security/pam_modules.h>
47 #include <security/pam_mod_misc.h>
49 #define OPT_ALLOW_ROOT "allow_root"
52 pam_sm_authenticate(pam_handle_t
*pamh
, int flags __unused
,
53 int argc __unused
, const char *argv
[] __unused
)
57 const void *ruser
, *rhost
;
60 err
= pam_get_user(pamh
, &user
, NULL
);
61 if (err
!= PAM_SUCCESS
)
64 if ((pw
= getpwnam(user
)) == NULL
)
65 return (PAM_USER_UNKNOWN
);
66 if (pw
->pw_uid
== 0 &&
67 openpam_get_option(pamh
, OPT_ALLOW_ROOT
) == NULL
)
68 return (PAM_AUTH_ERR
);
70 err
= pam_get_item(pamh
, PAM_RUSER
, &ruser
);
71 if (err
!= PAM_SUCCESS
)
72 return (PAM_AUTH_ERR
);
74 err
= pam_get_item(pamh
, PAM_RHOST
, &rhost
);
75 if (err
!= PAM_SUCCESS
)
76 return (PAM_AUTH_ERR
);
78 superuser
= (strcmp(user
, "root") == 0);
79 err
= ruserok(rhost
, superuser
, ruser
, user
);
81 return (PAM_AUTH_ERR
);
87 pam_sm_setcred(pam_handle_t
*pamh __unused
, int flags __unused
,
88 int argc __unused
, const char *argv
[] __unused
)
94 PAM_MODULE_ENTRY("pam_rhosts");