3 files changed, 237 insertions, 0 deletions
diff --git a/lib/libpam/modules/pam_deny/Makefile b/lib/libpam/modules/pam_deny/Makefile
new file mode 100644
index 0000000..adbda34
--- /dev/null
+++ b/lib/libpam/modules/pam_deny/Makefile
@@ -0,0 +1,32 @@
+# Copyright 1999 Max Khon.
+# 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 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.
+#
+#	$FreeBSD$
+
+LIB=		pam_deny
+SHLIB_NAME=	${LIB}.so.${SHLIB_MAJOR}
+SRCS=		pam_deny.c
+MAN=		pam_deny.8
+
+.include <bsd.lib.mk>
diff --git a/lib/libpam/modules/pam_deny/pam_deny.8 b/lib/libpam/modules/pam_deny/pam_deny.8
new file mode 100644
index 0000000..d9544be
--- /dev/null
+++ b/lib/libpam/modules/pam_deny/pam_deny.8
@@ -0,0 +1,80 @@
+.\" Copyright (c) 2001 Mark R V Murray
+.\" 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 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd July 7, 2001
+.Dt PAM_DENY 8
+.Os
+.Sh NAME
+.Nm pam_deny
+.Nd Deny PAM module
+.Sh SYNOPSIS
+.Op Ar service-name
+.Ar module-type
+.Ar control-flag
+.Pa pam_deny
+.Op Ar options
+.Sh DESCRIPTION
+The Deny authentication service module for PAM,
+.Nm
+provides functionality for all the PAM categories:
+authentication,
+account management,
+session management and
+password management.
+In terms of the
+.Ar module-type
+parameter, these are the
+.Dq Li auth ,
+.Dq Li account ,
+.Dq Li session ,
+and
+.Dq Li password
+features.
+.Pp
+The Deny module
+will universally deny all requests.
+It is primarily of use during testing,
+and to
+.Dq null-out
+unwanted functionality.
+.Pp
+The following options may be passed to the module:
+.Bl -tag -width ".Cm no_warn"
+.It Cm debug
+.Xr syslog 3
+debugging information at
+.Dv LOG_DEBUG
+level.
+.It Cm no_warn
+suppress warning messages to the user.
+These messages include
+reasons why the user's
+authentication attempt was declined.
+.El
+.Sh SEE ALSO
+.Xr syslog 3 ,
+.Xr pam.conf 5 ,
+.Xr pam 8
diff --git a/lib/libpam/modules/pam_deny/pam_deny.c b/lib/libpam/modules/pam_deny/pam_deny.c
new file mode 100644
index 0000000..02dc8a5
--- /dev/null
+++ b/lib/libpam/modules/pam_deny/pam_deny.c
@@ -0,0 +1,125 @@
+/*-
+ * Copyright 2001 Mark R V Murray
+ * 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 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 <stddef.h>
+
+#define PAM_SM_AUTH
+#define PAM_SM_ACCOUNT
+#define PAM_SM_SESSION
+#define PAM_SM_PASSWORD
+
+#include <security/pam_appl.h>
+#include <security/pam_modules.h>
+#include <security/pam_mod_misc.h>
+
+PAM_EXTERN int
+pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
+{
+	struct options options;
+
+	pam_std_option(&options, NULL, argc, argv);
+
+	PAM_LOG("Options processed");
+
+	PAM_VERBOSE_ERROR("Unconditional deny");
+
+	PAM_RETURN(PAM_AUTH_ERR);
+}
+
+PAM_EXTERN int
+pam_sm_setcred(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
+{
+	struct options options;
+
+	pam_std_option(&options, NULL, argc, argv);
+
+	PAM_LOG("Options processed");
+
+	PAM_VERBOSE_ERROR("Unconditional deny");
+
+	PAM_RETURN(PAM_CRED_UNAVAIL);
+}
+
+PAM_EXTERN int
+pam_sm_acct_mgmt(pam_handle_t *pamh, int flags __unused, int argc ,const char **argv)
+{
+	struct options options;
+
+	pam_std_option(&options, NULL, argc, argv);
+
+	PAM_LOG("Options processed");
+
+	PAM_VERBOSE_ERROR("Unconditional deny");
+
+	PAM_RETURN(PAM_ACCT_EXPIRED);
+}
+
+PAM_EXTERN int
+pam_sm_chauthtok(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
+{
+	struct options options;
+
+	pam_std_option(&options, NULL, argc, argv);
+
+	PAM_LOG("Options processed");
+
+	PAM_VERBOSE_ERROR("Unconditional deny");
+
+	PAM_RETURN(PAM_PERM_DENIED);
+}
+
+PAM_EXTERN int
+pam_sm_open_session(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
+{
+	struct options options;
+
+	pam_std_option(&options, NULL, argc, argv);
+
+	PAM_LOG("Options processed");
+
+	PAM_VERBOSE_ERROR("Unconditional deny");
+
+	PAM_RETURN(PAM_SESSION_ERR);
+}
+
+PAM_EXTERN int
+pam_sm_close_session(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
+{
+	struct options options;
+
+	pam_std_option(&options, NULL, argc, argv);
+
+	PAM_LOG("Options processed");
+
+	PAM_VERBOSE_ERROR("Unconditional deny");
+
+	PAM_RETURN(PAM_SESSION_ERR);
+}
+
+PAM_MODULE_ENTRY("pam_deny");