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NDIS_EVENTS(8)	       DragonFly System Manager's Manual	NDIS_EVENTS(8)


ndis_events -- relay events from ndis(4) drivers to wpa_supplicant(8)


ndis_events [-a] [-d] [-v]


The ndis_events utility listens for events generated by an ndis(4) wire- less network driver and relays them to wpa_supplicant(8) for possible processing. The three event types that can occur are media connect and disconnect events, such as when a wireless interface joins or leaves a network, and media-specific events. In particular, ndis(4) drivers that support WPA2 will generate media-specific events containing PMKID candi- date information which wpa_supplicant(8) needs in order to properly asso- ciate with WPA2-capable access points. The ndis_events daemon works by listening for interface information events via a routing socket. When it detects an event that was generated by an ndis(4) interface, it transmits it via UDP packet on the loopback interface, where wpa_supplicant(8) is presumably listening. The standard wpa_supplicant(8) distribution includes its own version of this utility for use with Windows(R). The DragonFly version performs the same func- tions as the Windows(R) one, except that it uses an ioctl(2) and routing socket interface instead of WMI. Note that a single instance of ndis_events is sufficient to scan for events for any number of ndis(4) interfaces in a system.


The ndis_events daemon supports the following options: -a Process all events. By default, ndis_events will only process and forward media-specific events, which contain PMKID candidate information, and not bother forwarding connect and disconnect events, since wpa_supplicant(8) normally can determine the cur- rent link state on its own. In some cases, the additional con- nect and disconnect events only confuse it and make the associa- tion and authentication process take longer. -d Run in debug mode. This causes ndis_events to run in the fore- ground and generate any output to the standard error instead of using the syslog(3) facility. -v Run in verbose mode. This causes ndis_events to emit notifica- tions when it receives events.


ndis(4), wpa_supplicant(8)


The ndis_events utility first appeared in FreeBSD 6.0.


The ndis_events utility was written by Bill Paul <wpaul@windriver.com>. DragonFly 5.5 August 30, 2007 DragonFly 5.5

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