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NetBSD 6.1.5 - man page for ieee80211_output (netbsd section 9)

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IEEE80211_OUTPUT(9)		  BSD Kernel Developer's Manual 	      IEEE80211_OUTPUT(9)

NAME
     ieee80211_encap, ieee80211_add_rates, ieee80211_add_xrates, ieee80211_send_mgmt -- software
     802.11 stack output functions

SYNOPSIS
     #include <net80211/ieee80211_var.h>
     #include <net80211/ieee80211_proto.h>

     struct mbuf *
     ieee80211_encap(struct ieee80211com *ic, struct mbuf *m, struct ieee80211_node *ni);

     u_int8_t *
     ieee80211_add_rates(u_int8_t *frm, const struct ieee80211_rateset *rs);

     u_int8_t *
     ieee80211_add_xrates(u_int8_t *frm, const struct ieee80211_rateset *rs);

     int
     ieee80211_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, int type, int arg);

DESCRIPTION
     These functions handle the encapsulation and transmission of 802.11 frames within the soft-
     ware 802.11 stack.

     The ieee80211_encap() function encapsulates an outbound data frame contained within the mbuf
     chain m from the interface ic.  The argument ni is a reference to the destination node.

     If the function is successful, the mbuf chain is updated with the 802.11 frame header
     prepended, and a pointer to the head of the chain is returned.  If an error occurs, NULL is
     returned.

     The ieee80211_add_rates() utility function is used to add the rate set element *rs to the
     frame frm.  A pointer to the location in the buffer after the addition of the rate set is
     returned.	It is typically used when constructing management frames from within the software
     802.11 stack.

     The ieee80211_add_xrates() utility function is used to add the extended rate set element *rs
     to the frame frm.	A pointer to the location in the buffer after the addition of the rate
     set is returned.  It is typically used when constructing management frames from within the
     software 802.11 stack in 802.11g mode.

     The ieee80211_send_mgmt() function transmits a management frame on the interface ic to the
     destination node ni of type type.

     The argument arg specifies either a sequence number for authentication operations, a status
     code for [re]association operations, or a reason for deauthentication and deassociation
     operations.

     Nodes other than ic_bss have their reference count incremented to reflect their use for an
     indeterminate amount of time.  This reference is freed when the function returns.

     The function returns 0 if successful; if temporary buffer space is not available, the func-
     tion returns ENOMEM.

SEE ALSO
     ieee80211(9)

HISTORY
     The ieee80211 series of functions first appeared in NetBSD 1.5, and were later ported to
     FreeBSD 4.6.

AUTHORS
     This man page was written by Bruce M. Simpson <bms@FreeBSD.org> and Darron Broad
     <darron@kewl.org>.

BSD					September 12, 2006				      BSD
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