Initial import

[samba] / source / pam_smbpass / pam_smb_acct.c

diff --git a/source/pam_smbpass/pam_smb_acct.c b/source/pam_smbpass/pam_smb_acct.c
new file mode 100644 (file)
index 0000000..2ea7eea
--- /dev/null
+++ b/source/pam_smbpass/pam_smb_acct.c
@@ -0,0 +1,121 @@
+/* Unix NT password database implementation, version 0.7.5.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 675
+ * Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/* indicate the following groups are defined */
+#define PAM_SM_ACCT
+
+#include "includes.h"
+
+#ifndef LINUX
+
+/* This is only used in the Sun implementation. */
+#include <security/pam_appl.h>
+
+#endif  /* LINUX */
+
+#include <security/pam_modules.h>
+
+#include "general.h"
+
+#include "support.h"
+
+
+/*
+ * pam_sm_acct_mgmt() verifies whether or not the account is disabled.
+ *
+ */
+
+int pam_sm_acct_mgmt( pam_handle_t *pamh, int flags,
+                      int argc, const char **argv )
+{
+    unsigned int ctrl;
+    int retval;
+
+    const char *name;
+    SAM_ACCOUNT *sampass = NULL;
+    void (*oldsig_handler)(int);
+    extern BOOL in_client;
+
+    /* Samba initialization. */
+    setup_logging( "pam_smbpass", False );
+    in_client = True;
+
+    ctrl = set_ctrl( flags, argc, argv );
+
+    /* get the username */
+
+    retval = pam_get_user( pamh, &name, "Username: " );
+    if (retval != PAM_SUCCESS) {
+        if (on( SMB_DEBUG, ctrl )) {
+           _log_err( LOG_DEBUG, "acct: could not identify user" );
+        }
+        return retval;
+    }
+    if (on( SMB_DEBUG, ctrl )) {
+        _log_err( LOG_DEBUG, "acct: username [%s] obtained", name );
+    }
+
+    /* Getting into places that might use LDAP -- protect the app
+       from a SIGPIPE it's not expecting */
+    oldsig_handler = CatchSignal(SIGPIPE, SIGNAL_CAST SIG_IGN);
+    if (!initialize_password_db(True)) {
+        _log_err( LOG_ALERT, "Cannot access samba password database" );
+        CatchSignal(SIGPIPE, SIGNAL_CAST oldsig_handler);
+        return PAM_AUTHINFO_UNAVAIL;
+    }
+
+    /* Get the user's record. */
+    pdb_init_sam(&sampass);
+    pdb_getsampwnam(sampass, name );
+
+    if (!sampass) {
+        CatchSignal(SIGPIPE, SIGNAL_CAST oldsig_handler);
+        return PAM_USER_UNKNOWN;
+    }
+
+    if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) {
+        if (on( SMB_DEBUG, ctrl )) {
+            _log_err( LOG_DEBUG
+                      , "acct: account %s is administratively disabled", name );
+        }
+        make_remark( pamh, ctrl, PAM_ERROR_MSG
+                     , "Your account has been disabled; "
+                       "please see your system administrator." );
+
+        CatchSignal(SIGPIPE, SIGNAL_CAST oldsig_handler);
+        return PAM_ACCT_EXPIRED;
+    }
+
+    /* TODO: support for expired passwords. */
+
+    CatchSignal(SIGPIPE, SIGNAL_CAST oldsig_handler);
+    return PAM_SUCCESS;
+}
+
+/* static module data */
+#ifdef PAM_STATIC
+struct pam_module _pam_smbpass_acct_modstruct = {
+     "pam_smbpass",
+     NULL,
+     NULL,
+     pam_sm_acct_mgmt,
+     NULL,
+     NULL,
+     NULL
+};
+#endif
+