pam-krb5: Import/add pam-krb5 from eyeire.orgvendor/pam-krb5/4.11vendor/pam-krb5

From https://www.eyrie.org/~eagle/software/pam-krb5/:

pam-krb5 provides a Kerberos PAM module that supports authentication,
user ticket cache handling, simple authorization (via .k5login or
checking Kerberos principals against local usernames), and password
changing. It can be configured through either options in the PAM
configuration itself or through entries in the system krb5.conf file,
and it tries to work around PAM implementation flaws in commonly-used
PAM-enabled applications such as OpenSSH and xdm. It supports both
PKINIT and FAST to the extent that the underlying Kerberos libraries
support these features.

The reason for this import is to provide an MIT KRB5 compatible
pam_krb5 PAM module. The existing pam_krb5 in FreeBS only works
with Heimdal.

Sponsored by:	The FreeBSD Foundation

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/data/scripts/expired/basic-heimdal-debug b/tests/data/scripts/expired/basic-heimdal-debug
new file mode 100644
index 000000000000..a18cc00c71a9
--- /dev/null
+++ b/tests/data/scripts/expired/basic-heimdal-debug
@@ -0,0 +1,44 @@
+# Test default handling of expired passwords.  -*- conf -*-
+#
+# Written by Russ Allbery <eagle@eyrie.org>
+# Copyright 2014, 2017, 2020 Russ Allbery <eagle@eyrie.org>
+# Copyright 2010-2011
+#     The Board of Trustees of the Leland Stanford Junior University
+#
+# SPDX-License-Identifier: BSD-3-clause or GPL-1+
+
+[options]
+    auth     = ignore_k5login debug
+    account  = ignore_k5login debug
+    password = ignore_k5login debug
+    session  = debug
+
+[run]
+    authenticate  = PAM_SUCCESS
+    acct_mgmt     = PAM_SUCCESS
+    open_session  = PAM_SUCCESS
+    close_session = PAM_SUCCESS
+
+[prompts]
+    echo_off = Password: |%p
+    info     = Password has expired
+    info     = Your password will expire at %1
+    info     = Changing password
+    echo_off = New password: |%n
+    echo_off = Repeat new password: |%n
+    info     = Success: Password changed
+
+[output]
+    DEBUG pam_sm_authenticate: entry
+    DEBUG (user %u) attempting authentication as %0
+    INFO user %u authenticated as %0
+    DEBUG /^\(user %u\) temporarily storing credentials in /tmp/krb5cc_pam_/
+    DEBUG pam_sm_authenticate: exit (success)
+    DEBUG pam_sm_acct_mgmt: entry
+    DEBUG (user %u) retrieving principal from cache
+    DEBUG pam_sm_acct_mgmt: exit (success)
+    DEBUG pam_sm_open_session: entry
+    DEBUG /^\(user %u\) initializing ticket cache FILE:/tmp/krb5cc_/
+    DEBUG pam_sm_open_session: exit (success)
+    DEBUG pam_sm_close_session: entry
+    DEBUG pam_sm_close_session: exit (success)