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authorHiroki Shirokura <hiroki.shirokura@linecorp.com>2022-01-22 12:07:40 +0100
committerLouis Scalbert <louis.scalbert@6wind.com>2023-04-18 10:11:43 +0200
commit81a067cd9251b60a04bbc8133546e790044fa790 (patch)
treea9082b7945b7da51ad54df3adb73b4013205d070 /lib/segment_routing.h
parentisisd: update struct isis_sr_psid_info with algorithm id (diff)
downloadfrr-81a067cd9251b60a04bbc8133546e790044fa790.tar.xz
frr-81a067cd9251b60a04bbc8133546e790044fa790.zip
lib,isisd: refactor igp-agnostic sr misc functions
SR Algorithms are independent of specific IGPs such as IS-IS. This commit adds lib/sr to aggregate IGP agnostic functions and constants. Signed-off-by: Hiroki Shirokura <hiroki.shirokura@linecorp.com> Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com> Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Diffstat (limited to 'lib/segment_routing.h')
-rw-r--r--lib/segment_routing.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/segment_routing.h b/lib/segment_routing.h
new file mode 100644
index 000000000..5e71466bf
--- /dev/null
+++ b/lib/segment_routing.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*********************************************************************
+ * Copyright 2022 Hiroki Shirokura, LINE Corporation
+ * Copyright 2022 Masakazu Asama
+ * Copyright 2022 6WIND S.A.
+ *
+ * segment_routing.h: Segment-Routing Library
+ *
+ * Authors
+ * -------
+ * Hiroki Shirokura
+ * Masakazu Asama
+ * Louis Scalbert
+ */
+
+#ifndef _FRR_SR_H
+#define _FRR_SR_H
+
+#include <zebra.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * IGP Algorithm Types
+ * https://www.iana.org/assignments/igp-parameters/igp-parameters.xhtml
+ */
+#define SR_ALGORITHM_SPF 0 /* RFC8665 */
+#define SR_ALGORITHM_STRICT_SPF 1 /* RFC8665 */
+#define SR_ALGORITHM_UNSET 127 /* FRRouting defined */
+#define SR_ALGORITHM_FLEX_MIN 128 /* RFC9350 Flex-Algorithm */
+#define SR_ALGORITHM_FLEX_MAX 255 /* RFC9350 Flex-Algorithm */
+#define SR_ALGORITHM_COUNT 256
+
+const char *sr_algorithm_string(uint8_t algo);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FRR_SR_H */