Merge pull request #9440 from dlqs/dplanehook2

1 files changed, 86 insertions, 0 deletions

diff --git a/lib/frrscript.c b/lib/frrscript.c
index b935b30cc2..ccb790dc4a 100644
--- a/lib/frrscript.c
+++ b/lib/frrscript.c
@@ -32,6 +32,92 @@
 
 DEFINE_MTYPE_STATIC(LIB, SCRIPT, "Scripting");
 
+/*
+ * Script name hash utilities
+ */
+
+struct frrscript_names_head frrscript_names_hash;
+
+/*
+ * Wrapper for frrscript_names_add
+ * Use this to register hook calls when a daemon starts up
+ */
+int frrscript_names_add_function_name(const char *function_name)
+{
+	struct frrscript_names_entry *insert =
+		XCALLOC(MTYPE_SCRIPT, sizeof(*insert));
+	strlcpy(insert->function_name, function_name,
+		sizeof(insert->function_name));
+
+	if (frrscript_names_add(&frrscript_names_hash, insert)) {
+		zlog_warn(
+			"Failed to add hook call function name to script_names");
+		return 1;
+	}
+	return 0;
+}
+
+void frrscript_names_destroy(void)
+{
+	struct frrscript_names_entry *ne;
+
+	while ((ne = frrscript_names_pop(&frrscript_names_hash)))
+		XFREE(MTYPE_SCRIPT, ne);
+}
+
+/*
+ * Given a function_name, set its script_name. function_names and script_names
+ * are one-to-one. Each set will wipe the previous script_name.
+ * Return 0 if set was successful, else 1.
+ *
+ * script_name is the base name of the file, without .lua.
+ */
+int frrscript_names_set_script_name(const char *function_name,
+				    const char *script_name)
+{
+	struct frrscript_names_entry lookup;
+
+	strlcpy(lookup.function_name, function_name,
+		sizeof(lookup.function_name));
+	struct frrscript_names_entry *snhe =
+		frrscript_names_find(&frrscript_names_hash, &lookup);
+	if (!snhe)
+		return 1;
+	strlcpy(snhe->script_name, script_name, sizeof(snhe->script_name));
+	return 0;
+}
+
+/*
+ * Given a function_name, get its script_name.
+ * Return NULL if function_name not found.
+ *
+ * script_name is the base name of the file, without .lua.
+ */
+char *frrscript_names_get_script_name(const char *function_name)
+{
+	struct frrscript_names_entry lookup;
+
+	strlcpy(lookup.function_name, function_name,
+		sizeof(lookup.function_name));
+	struct frrscript_names_entry *snhe =
+		frrscript_names_find(&frrscript_names_hash, &lookup);
+	if (!snhe)
+		return NULL;
+	return snhe->script_name;
+}
+
+uint32_t frrscript_names_hash_key(const struct frrscript_names_entry *snhe)
+{
+	return string_hash_make(snhe->function_name);
+}
+
+int frrscript_names_hash_cmp(const struct frrscript_names_entry *snhe1,
+			     const struct frrscript_names_entry *snhe2)
+{
+	return strncmp(snhe1->function_name, snhe2->function_name,
+		       sizeof(snhe1->function_name));
+}
+
 /* Codecs */
 
 struct frrscript_codec frrscript_codecs_lib[] = {