Dan Williams wrote : > > Hidden SSID is a mess right now. Here's why, and here's a proposal for > fixing it. If you want my participation, it's usually wise to cc me. > The problem is that there isn't a nice, generic capabilities field in > WEXT. So we have to abuse an existing one, and I picked enc_capa. Please don't do that. It's fairly trivial to add a new field in iwrange. And it's not like the sky will fall down if we add a field in iwrange. If you want to do it, please do it right. Note that there is one gotcha because of the state of userspace, so if you want I can produce a kernel patch that will work properly, and I'll add the usespace support for it as well. > +#define IW_ENC_CAPA_SPECIFIC_SSID_SCAN 0x00000010 That won't work. You have a tri-state, and with only a single bit you can encode only two state. You basically have : o driver that support ap_scan=1 o driver that do not support ap_scan=1 o driver that have not been updated or reside in old kernels So, at the minimum, you'd want : ------------------------------------- +#define IW_ENC_CAPA_SPECIFIC_SSID_SCAN 0x00000010 +#define IW_ENC_CAPA_ANY_SSID_SCAN 0x00000020 ------------------------------------- > However, userspace is f*cked because it can't figure out which one to > use, and trying both is not an option because you get unacceptable > latency for the user when trying to associate. Another option would be for SIOCSIWSCAN to fail if a specific SSID is set and it does not support it, instead of just ignoring it. Regards, Jean - 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
