libkmod: Add function to get list of built-in modules

Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>

diff --git a/libkmod/libkmod-internal.h b/libkmod/libkmod-internal.h
index df01df142026dffac92cc4c704a5c3983dc08294..ee4b97b013f20872c11a5d6976811beb866f1b24 100644 (file)
--- a/libkmod/libkmod-internal.h
+++ b/libkmod/libkmod-internal.h
@@ -145,6 +145,7 @@ void kmod_module_set_visited(struct kmod_module *mod, bool visited) __attribute_
 void kmod_module_set_builtin(struct kmod_module *mod, bool builtin) __attribute__((nonnull((1))));
 void kmod_module_set_required(struct kmod_module *mod, bool required) __attribute__((nonnull(1)));
 bool kmod_module_is_builtin(struct kmod_module *mod) __attribute__((nonnull(1)));
+int kmod_module_get_builtin(struct kmod_ctx *ctx, struct kmod_list **list) __attribute__((nonnull(1, 2)));
 
 /* libkmod-file.c */
 struct kmod_file *kmod_file_open(const struct kmod_ctx *ctx, const char *filename) _must_check_ __attribute__((nonnull(1,2)));

diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index bffe715cdef48a15e6a166c2a3ef74d824c42fc5..8fbabd2f960bcd1efebae2178cb2e94bc312d4c7 100644 (file)
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -2866,3 +2866,43 @@ KMOD_EXPORT void kmod_module_dependency_symbols_free_list(struct kmod_list *list
                list = kmod_list_remove(list);
        }
 }
+
+/**
+ * kmod_module_get_builtin:
+ * @ctx: kmod library context
+ * @list: where to save the builtin module list
+ *
+ * Returns: 0 on success or < 0 otherwise.
+ */
+int kmod_module_get_builtin(struct kmod_ctx *ctx, struct kmod_list **list)
+{
+       struct kmod_builtin_iter *iter;
+       int err = 0;
+
+       iter = kmod_builtin_iter_new(ctx);
+       if (!iter)
+               return -errno;
+
+       while (kmod_builtin_iter_next(iter)) {
+               struct kmod_module *mod = NULL;
+               char modname[PATH_MAX];
+
+               if (!kmod_builtin_iter_get_modname(iter, modname)) {
+                       err = -errno;
+                       goto fail;
+               }
+
+               kmod_module_new_from_name(ctx, modname, &mod);
+               kmod_module_set_builtin(mod, true);
+
+               *list = kmod_list_append(*list, mod);
+       }
+
+       kmod_builtin_iter_free(iter);
+       return err;
+fail:
+       kmod_builtin_iter_free(iter);
+       kmod_module_unref_list(*list);
+       *list = NULL;
+       return err;
+}