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>>>> Well.. before you can finish this work we need to decide upon what the >>>> interface to userspace will be. >>>> >>>> - The miscdev isn't appropriate >>>> >>> Why isn't miscdev appropriate? >>> We just shouldn't use miscdev for networking conventionally? >>> >> Yes it's rather odd, especially for networking. >> >> What does the miscdev _do_ anyway? Is it purely a target for the ioctls? Yes, I purely use miscdev for the ioctls. I want to use sysfs and ioctl to implement the dynamic configurabillity. The sysfs shows/changes netconsole configurations(IP address, port and so on). A userland application using the ioctl adds/removes netconsole port. I thought that the dynamic configurability could be realized without a userland application. in the kernel only. (e.g. only sysfs, no userland application) But I think we need the function to automatically resolve the destination MAC address from IP address because of the resolving cost and I should implement a userland application, not netconsole kernel module. The netconsle will become more useful by implementing the above function. > Some other speculations: > 1. Would it be possible to add ioctl's to /dev/console? This would be more in > keeping with older Unix style model. > > 2. Using sysfs makes sense if there is a device object that exists to > add the sysfs attributes to. > > 3. Procfs is handy for summary type tables. > > 4. Netlink does feel like overkill for this. Although newer generic netlink > makes it easier. If I use sysfs, Is it proper location that adds each attributes of netconsole port in "/sys/class/misc/netconsole/port[0-9]*", or another locations in /sys/? Stephen Hemminger said "The configuration of netconsole's looks like the configuration of routes". I think so too. So I think ioctl commands for adding/removing port and the following userland application like route(8) command by using the ioctl. e.g. 1. add port # netconfig add 192.168.0.10 6666 2. remove port # netconfig remove 1 3. show port info # netconfig id status Source IP Source Port Destination IP Destination Port Destination MAC 1 enable 192.168.0.1 6665 192.168.0.10 6666 00:11:22:33:44:55 2 disable 192.168.0.1 6665 192.168.0.20 6666 00:11:22:33:44:66 route(8) command uses ioctl for Netlink. But, I'm going to implement ioctl's to /dev/console because of the above comments. Thank you for your comments. Any comments very welcome. -- Keiichi KII NEC Corporation OSS Promotion Center E-mail: k-keiichi@bx.jp.nec.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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