问题描述
我正在尝试执行以字节数组作为参数(签名 busctl call
)的方法的 ay
。我该怎么做?
这是我迄今为止尝试过的:
# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} ay 0x00 0x00 0x01 0x00 0xaf
Too many parameters for signature.
# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} yyyyy 0x00 0x00 0x01 0x00 0xaf
Call Failed: Invalid arguments 'yyyyy' to call xyz.openbmc_project.Control.Haven.SendHostCommand(),expecting 'ay'.
# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} a5y 0x00 0x00 0x01 0x00 0xaf
Invalid array signature: Invalid argument
# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} ay '0x00 0x00 0x01 0x00 0xaf'
Failed to parse '0x00 0x00 0x01 0x00 0xaf' number of array entries: Invalid argument
那么,它想要什么?
解决方法
我相信您需要将数组的长度放在值之前。所以在你的例子中,这将是:
busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} ay 5 0x00 0x00 0x01 0x00 0xaf