diff options
author | des <des@FreeBSD.org> | 2002-04-12 20:10:18 +0000 |
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committer | des <des@FreeBSD.org> | 2002-04-12 20:10:18 +0000 |
commit | bee5210d96f69a94ed6cfb949070c396f9a64907 (patch) | |
tree | 313c6bdfde670b8d10e3fd80c337608c22507abd /lib/libpam/modules/pam_rhosts/pam_rhosts.c | |
parent | ca8afeff708feeedc8b44d2de34bd71b8e4474e0 (diff) | |
download | FreeBSD-src-bee5210d96f69a94ed6cfb949070c396f9a64907.zip FreeBSD-src-bee5210d96f69a94ed6cfb949070c396f9a64907.tar.gz |
Add a pam_rhosts module, loosely based on code submitted by Danny Braniss.
Submitted by: Danny Braniss <danny@cs.huji.ac.il>
Sponsored by: DARPA, NAI Labs
Diffstat (limited to 'lib/libpam/modules/pam_rhosts/pam_rhosts.c')
-rw-r--r-- | lib/libpam/modules/pam_rhosts/pam_rhosts.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/lib/libpam/modules/pam_rhosts/pam_rhosts.c b/lib/libpam/modules/pam_rhosts/pam_rhosts.c new file mode 100644 index 0000000..1060fc5 --- /dev/null +++ b/lib/libpam/modules/pam_rhosts/pam_rhosts.c @@ -0,0 +1,93 @@ +/*- + * Copyright (c) 2002 Danny Braniss + * All rights reserved. + * Copyright (c) 2001,2002 Networks Associates Technology, Inc. + * All rights reserved. + * + * Portions of this software were developed for the FreeBSD Project by + * ThinkSec AS and NAI Labs, the Security Research Division of Network + * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 + * ("CBOSS"), as part of the DARPA CHATS research program. + * + * 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. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <pwd.h> +#include <stddef.h> +#include <unistd.h> + +#define PAM_SM_AUTH +#include <security/pam_appl.h> +#include <security/pam_modules.h> +#include <security/pam_mod_misc.h> + +#define OPT_ALLOW_ROOT "allow_root" + +PAM_EXTERN int +pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, + int argc __unused, const char *argv[] __unused) +{ + struct passwd *pw; + const char *user, *ruser, *rhost; + int err, superuser; + + err = pam_get_user(pamh, &user, NULL); + if (err != PAM_SUCCESS) + return (err); + + if ((pw = getpwnam(user)) == NULL) + return (PAM_USER_UNKNOWN); + if (pw->pw_uid == 0 && + openpam_get_option(pamh, OPT_ALLOW_ROOT) == NULL) + return (PAM_AUTH_ERR); + + err = pam_get_item(pamh, PAM_RUSER, (const void **)&ruser); + if (err != PAM_SUCCESS) + return (PAM_AUTH_ERR); + + err = pam_get_item(pamh, PAM_RHOST, (const void **)&rhost); + if (err != PAM_SUCCESS) + return (PAM_AUTH_ERR); + + superuser = (strcmp(user, "root") == 0); + err = ruserok(rhost, superuser, ruser, user); + if (err != 0) + return (PAM_AUTH_ERR); + + return (PAM_SUCCESS); +} + +PAM_EXTERN int +pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused, + int argc __unused, const char *argv[] __unused) +{ + + return (PAM_SUCCESS); +} + +PAM_MODULE_ENTRY("pam_rhosts"); |