PARA_ERROR(CLIENT_SYNTAX, "syntax error"), \
PARA_ERROR(INVALID_CHALLENGE, "did not receive valid challenge"), \
PARA_ERROR(NO_CONFIG, "config file not found"), \
+ PARA_ERROR(BAD_CONFIG, "syntax error in config file"), \
PARA_ERROR(CLIENT_AUTH, "authentication failed"), \
PARA_ERROR(SERVER_EOF, "connection closed by para_server"), \