token-validator: save ping state (0: ping ok, 1: arping only)

token-validator/db.go

@@ -100,6 +100,7 @@ CREATE TABLE IF NOT EXISTS student_challenges(
 CREATE TABLE IF NOT EXISTS student_pong(
   id_student INTEGER NOT NULL,
   time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  state BOOLEAN NOT NULL DEFAULT 0,
   FOREIGN KEY(id_student) REFERENCES students(id_student)
 ) DEFAULT CHARACTER SET = utf8 COLLATE = utf8_bin;
 `); err != nil {