1 files changed, 25 insertions, 0 deletions
diff --git a/protm.c b/protm.c
new file mode 100644
index 0000000..932efca
--- /dev/null
+++ b/protm.c
@@ -0,0 +1,25 @@
+#include <stdbool.h>
+#include <assert.h>
+#include "protm.h"
+
+size_t protm_size(const struct protm *pm) {
+	switch (pm->type) {
+		case PROTM_TYPE_ESTAB:
+			return 2;
+
+		case PROTM_TYPE_TERM:
+			return 2;
+
+		case PROTM_TYPE_DATA:
+			return 7 + pm->data.size;
+
+		case PROTM_TYPE_RR:
+			return 3 + pm->rr.nrej;
+
+		case PROTM_TYPE_RR_POLL:
+			return 1;
+
+		default:
+			assert(false);
+	}
+}