用SocketCAN编写自定义CAN协议

Question

我正在尝试为SocketCAN编写一个稍微修改过的CAN协议。关于这一点，SocketCAN文档有一个简短的部分：

5.3 writing own CAN protocol modules

To implement a new protocol in the protocol family PF_CAN a new
protocol has to be defined in include/linux/can.h .
The prototypes and definitions to use the SocketCAN core can be
accessed by including include/linux/can/core.h .
In addition to functions that register the CAN protocol and the
CAN device notifier chain there are functions to subscribe CAN
frames received by CAN interfaces and to send CAN frames:

can_rx_register   - subscribe CAN frames from a specific interface
can_rx_unregister - unsubscribe CAN frames from a specific interface
can_send          - transmit a CAN frame (optional with local loopback)

For details see the kerneldoc documentation in net/can/af_can.c or
the source code of net/can/raw.c or net/can/bcm.c .

(https://www.kernel.org/doc/Documentation/networking/can.txt)

问题是我找不到这里引用的一些文件。我不太熟悉Linux内核，所以我不知道我是不是找错地方了。我可以找到include/linux/can.h和目录include/linux/can/，但是那里没有core.h文件。此外，我无法找到所引用的net/目录。

其他信息：

• 我能够发送和接收原始的CAN帧，所以我相信我的SocketCAN设置是正确的。
• 目录的内容(其中应该是core.h )： beaglebone:~# ls /usr/include/linux/can/ bcm.h错误.h gw.h netlink.h .h raw.h
• 我在BeagleBone黑上使用Debian (我不确定我的系统的嵌入性是否会产生影响)

如果有人能帮我指出我应该在哪里寻找这些文件，我将非常感激。

非常感谢！

Answer 1

CAN协议是在硬件中实现的；试图使不符合标准的数据包与兼容的硬件一起工作。