lib: introduce function that loads all FRR native YANG modules

In some cases it will be necessary to load all FRR native modules.
Examples:
* vtysh needs to load all YANG modules so that it can manipulate data
  from all daemons.
* The gen_northbound_callbacks tool will need to load all YANG modules
  since augmentations from one module can have an effect in the required
  northbound callbacks of other modules.

The new yang_module_load_all() function provides this functionality.

As a side note, the "frr_native_modules" will need to be updated every
time we add a new YANG module to FRR.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/yang.c b/lib/yang.c
index 73f63b18e..011fff65a 100644
--- a/lib/yang.c
+++ b/lib/yang.c
@@ -71,6 +71,11 @@ static const char *yang_module_imp_clb(const char *mod_name,
 	return NULL;
 }
 
+static const char * const frr_native_modules[] = {
+	"frr-interface",
+	"frr-ripd",
+};
+
 /* Generate the yang_modules tree. */
 static inline int yang_module_compare(const struct yang_module *a,
 				      const struct yang_module *b)
@@ -108,6 +113,12 @@ struct yang_module *yang_module_load(const char *module_name)
 	return module;
 }
 
+void yang_module_load_all(void)
+{
+	for (size_t i = 0; i < array_size(frr_native_modules); i++)
+		yang_module_load(frr_native_modules[i]);
+}
+
 struct yang_module *yang_module_find(const char *module_name)
 {
 	struct yang_module s;