1 files changed, 123 insertions, 0 deletions
diff --git a/modules/pam_warn/pam_warn.c b/modules/pam_warn/pam_warn.c
new file mode 100644
index 00000000..8c3b9d69
--- /dev/null
+++ b/modules/pam_warn/pam_warn.c
@@ -0,0 +1,123 @@
+/* pam_warn module */
+
+/*
+ * $Id: pam_warn.c,v 1.6 2005/09/17 08:59:04 t8m Exp $
+ *
+ * Written by Andrew Morgan <morgan@linux.kernel.org> 1996/3/11
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <stdarg.h>
+
+/*
+ * here, we make a definition for the externally accessible function
+ * in this file (this definition is required for static a module
+ * but strongly encouraged generally) it is used to instruct the
+ * modules include file to define the function prototypes.
+ */
+
+#define PAM_SM_AUTH
+#define PAM_SM_PASSWORD
+
+#include <security/pam_modules.h>
+#include <security/pam_ext.h>
+
+/* some syslogging */
+
+#define OBTAIN(item, value, default_value)  do {                \
+     (void) pam_get_item(pamh, item, &value);                   \
+     value = value ? value : default_value ;                    \
+} while (0)
+
+static void log_items(pam_handle_t *pamh, const char *function)
+{
+     const void *service=NULL, *user=NULL, *terminal=NULL,
+	 *rhost=NULL, *ruser=NULL;
+
+     OBTAIN(PAM_SERVICE, service, "<unknown>");
+     OBTAIN(PAM_TTY, terminal, "<unknown>");
+     OBTAIN(PAM_USER, user, "<unknown>");
+     OBTAIN(PAM_RUSER, ruser, "<unknown>");
+     OBTAIN(PAM_RHOST, rhost, "<unknown>");
+
+     pam_syslog(pamh, LOG_NOTICE,
+		"function=[%s] service=[%s] terminal=[%s] user=[%s]"
+		" ruser=[%s] rhost=[%s]\n", function,
+		(const char *) service, (const char *) terminal,
+		(const char *) user, (const char *) ruser,
+		(const char *) rhost);
+}
+
+/* --- authentication management functions (only) --- */
+
+PAM_EXTERN
+int pam_sm_authenticate(pam_handle_t *pamh, int flags UNUSED,
+			int argc UNUSED, const char **argv UNUSED)
+{
+    log_items(pamh, __FUNCTION__);
+    return PAM_IGNORE;
+}
+
+PAM_EXTERN
+int pam_sm_setcred(pam_handle_t *pamh, int flags UNUSED,
+		   int argc UNUSED, const char **argv UNUSED)
+{
+    log_items(pamh, __FUNCTION__);
+    return PAM_IGNORE;
+}
+
+/* password updating functions */
+
+PAM_EXTERN
+int pam_sm_chauthtok(pam_handle_t *pamh, int flags UNUSED,
+		     int argc UNUSED, const char **argv UNUSED)
+{
+    log_items(pamh, __FUNCTION__);
+    return PAM_IGNORE;
+}
+
+PAM_EXTERN int
+pam_sm_acct_mgmt(pam_handle_t *pamh, int flags UNUSED,
+		 int argc UNUSED, const char **argv UNUSED)
+{
+    log_items(pamh, __FUNCTION__);
+    return PAM_IGNORE;
+}
+
+PAM_EXTERN int
+pam_sm_open_session(pam_handle_t *pamh, int flags UNUSED,
+		    int argc UNUSED, const char **argv UNUSED)
+{
+    log_items(pamh, __FUNCTION__);
+    return PAM_IGNORE;
+}
+
+PAM_EXTERN int
+pam_sm_close_session(pam_handle_t *pamh, int flags UNUSED,
+		     int argc UNUSED, const char **argv UNUSED)
+{
+    log_items(pamh, __FUNCTION__);
+    return PAM_IGNORE;
+}
+
+#ifdef PAM_STATIC
+
+/* static module data */
+
+struct pam_module _pam_warn_modstruct = {
+    "pam_warn",
+    pam_sm_authenticate,
+    pam_sm_setcred,
+    pam_sm_acct_mgmt,
+    pam_sm_open_session,
+    pam_sm_close_session,
+    pam_sm_chauthtok,
+};
+
+#endif
+
+/* end of module definition */