Проект OpenNet: MAN ieee80211_decap (9) Ядро (FreeBSD и Linux)

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ieee80211_decap (9)

>> ieee80211_decap (9) ( FreeBSD man: Ядро )

BSD mandoc

NAME



ieee80211_input , ieee80211_decap , ieee80211_recv_mgmt

 - software 802.11 stack input functions

SYNOPSIS

#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_proto.h>
void Fo ieee80211_input Fa struct ifnet *ifp struct mbuf *m struct ieee80211_node *ni Fa int rssi u_int32_t rstamp Fc Ft struct mbuf * ieee80211_decap (struct ifnet *ifp struct mbuf *m);
void Fo ieee80211_recv_mgmt Fa struct ieee80211com *ic struct mbuf *m0 struct ieee80211_node *ni Fa int subtype int rssi u_int32_t rstamp Fc

DESCRIPTION

These functions process received 802.11 frames.

The ieee80211_input ();
function takes an mbuf chain Fa m containing a complete 802.11 frame from the driver Fa ifp and passes it to the software 802.11 stack for input processing. The Fa ni argument specifies an instance of Vt struct ieee80211_node (which may be driver-specific) representing the node from which the frame was received. The arguments Fa rssi and Fa stamp are typically derived from on-card data structures; they are used for recording the signal strength and time received of the frame respectively.

The ieee80211_decap ();
function performs decapsulation of the 802.11 frame in the mbuf chain Fa m received by the device Fa ifp , taking the form of the 802.11 address fields into account; the structure of 802.11 addresses vary according to the intended source and destination of the frame. It is typically called from within ieee80211_input (.);

The ieee80211_recv_mgmt ();
performs input processing for 802.11 management frames. It is typically called from within ieee80211_input (.);