Add asn1c generated code for keytab controls

Instead of manually encoding controls, use an actual asn1 compiler.
The file asn1/asn1c/ipa.asn1 will contain ipa modules. The generated code
is committed to the tree and built into a static library that is linked
to the code that uses it.

The first module implements the GetKeytabControl control.

Related:
https://fedorahosted.org/freeipa/ticket/4718
https://fedorahosted.org/freeipa/ticket/4728

Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Nathaniel McCallum <npmccallum@redhat.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/asn1/asn1c/asn_SET_OF.h b/asn1/asn1c/asn_SET_OF.h
new file mode 100644
index 000000000..7edf14b51
--- /dev/null
+++ b/asn1/asn1c/asn_SET_OF.h
@@ -0,0 +1,62 @@
+/*-
+ * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#ifndef	ASN_SET_OF_H
+#define	ASN_SET_OF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define	A_SET_OF(type)					\
+	struct {					\
+		type **array;				\
+		int count;	/* Meaningful size */	\
+		int size;	/* Allocated size */	\
+		void (*free)(type *);			\
+	}
+
+#define	ASN_SET_ADD(headptr, ptr)		\
+	asn_set_add((headptr), (ptr))
+
+/*******************************************
+ * Implementation of the SET OF structure.
+ */
+
+/*
+ * Add another structure into the set by its pointer.
+ * RETURN VALUES:
+ * 0 for success and -1/errno for failure.
+ */
+int  asn_set_add(void *asn_set_of_x, void *ptr);
+
+/*
+ * Delete the element from the set by its number (base 0).
+ * This is a constant-time operation. The order of elements before the
+ * deleted ones is guaranteed, the order of elements after the deleted
+ * one is NOT guaranteed.
+ * If _do_free is given AND the (*free) is initialized, the element
+ * will be freed using the custom (*free) function as well.
+ */
+void asn_set_del(void *asn_set_of_x, int number, int _do_free);
+
+/*
+ * Empty the contents of the set. Will free the elements, if (*free) is given.
+ * Will NOT free the set itself.
+ */
+void asn_set_empty(void *asn_set_of_x);
+
+/*
+ * Cope with different conversions requirements to/from void in C and C++.
+ * This is mostly useful for support library.
+ */
+typedef A_SET_OF(void) asn_anonymous_set_;
+#define _A_SET_FROM_VOID(ptr)		((asn_anonymous_set_ *)(ptr))
+#define _A_CSET_FROM_VOID(ptr)		((const asn_anonymous_set_ *)(ptr))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* ASN_SET_OF_H */