lib: add new structures for srv6-locator (step2)

This commit is a part of #5853 works that add new structures for
SRv6-locator. This structure will be used by zebra and another
routing daemon and its ZAPI messaging to manage SRv6-locator.
Encoder/decoder for ZAPI stream is also added by this commit.

Real configuration mechanism isn't implemented at this commit.
later commit add real configure implementation. This commit add only
SRv6-locator's structures and misc functions.

Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/lib/srv6.c b/lib/srv6.c
index 9b9f40298..d59d2d75b 100644
--- a/lib/srv6.c
+++ b/lib/srv6.c
@@ -22,6 +22,10 @@
 #include "srv6.h"
 #include "log.h"
 
+DEFINE_QOBJ_TYPE(srv6_locator);
+DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR, "SRV6 locator");
+DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR_CHUNK, "SRV6 locator chunk");
+
 const char *seg6local_action2str(uint32_t action)
 {
 	switch (action) {
@@ -117,3 +121,84 @@ const char *seg6local_context2str(char *str, size_t size,
 		return str;
 	}
 }
+
+struct srv6_locator *srv6_locator_alloc(const char *name)
+{
+	struct srv6_locator *locator = NULL;
+
+	locator = XCALLOC(MTYPE_SRV6_LOCATOR, sizeof(struct srv6_locator));
+	strlcpy(locator->name, name, sizeof(locator->name));
+	locator->chunks = list_new();
+	QOBJ_REG(locator, srv6_locator);
+	return locator;
+}
+
+struct srv6_locator_chunk *srv6_locator_chunk_alloc(void)
+{
+	struct srv6_locator_chunk *chunk = NULL;
+
+	chunk = XCALLOC(MTYPE_SRV6_LOCATOR_CHUNK,
+			sizeof(struct srv6_locator_chunk));
+	return chunk;
+}
+
+void srv6_locator_free(struct srv6_locator *locator)
+{
+	XFREE(MTYPE_SRV6_LOCATOR, locator);
+}
+
+void srv6_locator_chunk_free(struct srv6_locator_chunk *chunk)
+{
+	XFREE(MTYPE_SRV6_LOCATOR_CHUNK, chunk);
+}
+
+json_object *srv6_locator_chunk_json(const struct srv6_locator_chunk *chunk)
+{
+	char str[256];
+	json_object *jo_root = NULL;
+
+	jo_root = json_object_new_object();
+	prefix2str(&chunk->prefix, str, sizeof(str));
+	json_object_string_add(jo_root, "prefix", str);
+	json_object_string_add(jo_root, "proto",
+			       zebra_route_string(chunk->proto));
+
+	return jo_root;
+}
+
+json_object *srv6_locator_json(const struct srv6_locator *loc)
+{
+	char str[256];
+	struct listnode *node;
+	struct srv6_locator_chunk *chunk;
+	json_object *jo_root = NULL;
+	json_object *jo_chunk = NULL;
+	json_object *jo_chunks = NULL;
+
+	jo_root = json_object_new_object();
+
+	/* set name */
+	json_object_string_add(jo_root, "name", loc->name);
+
+	/* set prefix */
+	prefix2str(&loc->prefix, str, sizeof(str));
+	json_object_string_add(jo_root, "prefix", str);
+
+	/* set function_bits_length */
+	json_object_int_add(jo_root, "function_bits_length",
+			    loc->function_bits_length);
+
+	/* set status_up */
+	json_object_boolean_add(jo_root, "status_up",
+				loc->status_up);
+
+	/* set chunks */
+	jo_chunks = json_object_new_array();
+	json_object_object_add(jo_root, "chunks", jo_chunks);
+	for (ALL_LIST_ELEMENTS_RO((struct list *)loc->chunks, node, chunk)) {
+		jo_chunk = srv6_locator_chunk_json(chunk);
+		json_object_array_add(jo_chunks, jo_chunk);
+	}
+
+	return jo_root;
+}