On Sun, 28 Dec 2008 00:08:14 +0200, "Jouni Malinen" <j@xxxxx> said: > On Sat, Dec 27, 2008 at 10:08:20PM +0100, Michael Buesch wrote: > > Please take a look at the following log: > > http://bu3sch.de/misc/crda.JPG > > > > Note the ordering of the events. > > Hostapd starts up and tells the kernel what country we're in. > > Then the kernel calls CRDA, _but_ hostapd goes on with its business > > before CRDA has finished its work. > > Yes, because the netlink message was completed and hostapd assumes > everything is ready at that point. Ignoring the complexity in the kernel > (+ CRDA as a helper), this looks like reasonable expectation to make for > NL80211_CMD_REQ_SET_REG operation. There is no other mechanism that > would notify hostapd (or any other program setting country for that > matter) when the operation was actually fully completed and polling for > channel changes up to a timeout is not very appealing either. > > Unfortunately, I don't see an easy fix for this. This sounds like it's broken by design. Hostapd should not send NL80211_CMD_REQ_SET_REG if it is unable to evaluate the result. If it's necessary to do "iw reg set foobar" in a script prior to invoking hostapd, then why does hostapd even bother? -- http://www.fastmail.fm - Accessible with your email software or over the web -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
