1 files changed, 81 insertions, 0 deletions
diff --git a/lib/asn.h b/lib/asn.h
new file mode 100644
index 0000000..a7394fa
--- /dev/null
+++ b/lib/asn.h
@@ -0,0 +1,81 @@
+/*
+ * AS number structure
+ * Copyright 2022 6WIND
+ *
+ * This file is part of GNU Zebra.
+ *
+ * GNU Zebra 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, or (at your
+ * option) any later version.
+ *
+ * GNU Zebra 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; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _FRR_ASN_H
+#define _FRR_ASN_H
+
+#include "zebra.h"
+#include "command_match.h"
+#include "json.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ASN_STRING_MAX_SIZE	12
+
+enum asnotation_mode {
+	ASNOTATION_PLAIN = 0,
+	ASNOTATION_DOT,
+	ASNOTATION_DOTPLUS,
+	ASNOTATION_UNDEFINED,
+};
+
+typedef uint32_t as_t;
+
+extern bool asn_str2asn(const char *asstring, as_t *asn);
+extern const char *asn_asn2asplain(as_t asn);
+extern const char *asn_str2asn_parse(const char *asstring, as_t *asn,
+				     bool *found_ptr);
+extern enum match_type asn_str2asn_match(const char *str);
+extern bool asn_str2asn_notation(const char *asstring, as_t *asn,
+				 enum asnotation_mode *asnotation);
+extern const char *asn_mode2str(enum asnotation_mode asnotation);
+void asn_asn2json_array(json_object *jseg_list, as_t asn,
+			enum asnotation_mode asnotation);
+void asn_asn2json(json_object *jseg_list, const char *attr,
+		  as_t asn, enum asnotation_mode asnotation);
+extern char *asn_asn2string(const as_t *as, char *buf, size_t len,
+			    enum asnotation_mode asnotation);
+/* display AS in appropriate format */
+#ifdef _FRR_ATTRIBUTE_PRINTFRR
+#pragma FRR printfrr_ext "%pASP"  (as_t *)
+#pragma FRR printfrr_ext "%pASD"  (as_t *)
+#pragma FRR printfrr_ext "%pASE"  (as_t *)
+#endif
+
+#define ASN_FORMAT(mode)  \
+	((mode == ASNOTATION_DOT) ? "%pASD" :	    \
+	 ((mode == ASNOTATION_DOTPLUS) ? "%pASE" :	\
+	  "%pASP"))
+#define ASN_FORMAT_SPACE(mode)                                                 \
+	((mode == ASNOTATION_DOT)                                              \
+		 ? "%11pASD"                                                   \
+		 : ((mode == ASNOTATION_DOTPLUS) ? "%11pASE" : "%11pASP"))
+
+/* for test */
+extern void asn_relax_as_zero(bool relax);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FRR_ASN_H */