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9f1ba9062e
This change adds a new cfg80211 command, NL80211_CMD_SET_BSS, to allow AP mode BSS parameters to be changed from user space (e.g., hostapd). The drivers using mac80211 are expected to be modified with separate changes to use the new BSS info parameter for short slot time in the bss_info_changed() handler. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
398 lines
12 KiB
C
398 lines
12 KiB
C
#ifndef __NET_CFG80211_H
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#define __NET_CFG80211_H
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#include <linux/netlink.h>
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#include <linux/skbuff.h>
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#include <linux/nl80211.h>
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#include <net/genetlink.h>
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/*
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* 802.11 configuration in-kernel interface
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*
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* Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
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*/
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/**
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* struct vif_params - describes virtual interface parameters
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* @mesh_id: mesh ID to use
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* @mesh_id_len: length of the mesh ID
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*/
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struct vif_params {
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u8 *mesh_id;
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int mesh_id_len;
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};
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/* Radiotap header iteration
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* implemented in net/wireless/radiotap.c
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* docs in Documentation/networking/radiotap-headers.txt
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*/
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/**
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* struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
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* @rtheader: pointer to the radiotap header we are walking through
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* @max_length: length of radiotap header in cpu byte ordering
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* @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
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* @this_arg: pointer to current radiotap arg
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* @arg_index: internal next argument index
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* @arg: internal next argument pointer
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* @next_bitmap: internal pointer to next present u32
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* @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
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*/
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struct ieee80211_radiotap_iterator {
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struct ieee80211_radiotap_header *rtheader;
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int max_length;
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int this_arg_index;
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u8 *this_arg;
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int arg_index;
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u8 *arg;
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__le32 *next_bitmap;
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u32 bitmap_shifter;
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};
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extern int ieee80211_radiotap_iterator_init(
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struct ieee80211_radiotap_iterator *iterator,
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struct ieee80211_radiotap_header *radiotap_header,
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int max_length);
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extern int ieee80211_radiotap_iterator_next(
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struct ieee80211_radiotap_iterator *iterator);
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/**
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* struct key_params - key information
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*
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* Information about a key
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*
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* @key: key material
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* @key_len: length of key material
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* @cipher: cipher suite selector
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* @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
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* with the get_key() callback, must be in little endian,
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* length given by @seq_len.
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*/
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struct key_params {
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u8 *key;
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u8 *seq;
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int key_len;
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int seq_len;
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u32 cipher;
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};
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/**
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* struct beacon_parameters - beacon parameters
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*
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* Used to configure the beacon for an interface.
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*
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* @head: head portion of beacon (before TIM IE)
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* or %NULL if not changed
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* @tail: tail portion of beacon (after TIM IE)
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* or %NULL if not changed
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* @interval: beacon interval or zero if not changed
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* @dtim_period: DTIM period or zero if not changed
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* @head_len: length of @head
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* @tail_len: length of @tail
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*/
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struct beacon_parameters {
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u8 *head, *tail;
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int interval, dtim_period;
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int head_len, tail_len;
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};
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/**
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* enum station_flags - station flags
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*
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* Station capability flags. Note that these must be the bits
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* according to the nl80211 flags.
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*
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* @STATION_FLAG_CHANGED: station flags were changed
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* @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X)
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* @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
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* with short preambles
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* @STATION_FLAG_WME: station is WME/QoS capable
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*/
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enum station_flags {
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STATION_FLAG_CHANGED = 1<<0,
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STATION_FLAG_AUTHORIZED = 1<<NL80211_STA_FLAG_AUTHORIZED,
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STATION_FLAG_SHORT_PREAMBLE = 1<<NL80211_STA_FLAG_SHORT_PREAMBLE,
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STATION_FLAG_WME = 1<<NL80211_STA_FLAG_WME,
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};
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/**
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* enum plink_action - actions to perform in mesh peers
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*
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* @PLINK_ACTION_INVALID: action 0 is reserved
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* @PLINK_ACTION_OPEN: start mesh peer link establishment
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* @PLINK_ACTION_BLOCL: block traffic from this mesh peer
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*/
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enum plink_actions {
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PLINK_ACTION_INVALID,
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PLINK_ACTION_OPEN,
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PLINK_ACTION_BLOCK,
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};
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/**
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* struct station_parameters - station parameters
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*
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* Used to change and create a new station.
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*
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* @vlan: vlan interface station should belong to
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* @supported_rates: supported rates in IEEE 802.11 format
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* (or NULL for no change)
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* @supported_rates_len: number of supported rates
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* @station_flags: station flags (see &enum station_flags)
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* @listen_interval: listen interval or -1 for no change
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* @aid: AID or zero for no change
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*/
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struct station_parameters {
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u8 *supported_rates;
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struct net_device *vlan;
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u32 station_flags;
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int listen_interval;
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u16 aid;
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u8 supported_rates_len;
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u8 plink_action;
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};
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/**
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* enum station_info_flags - station information flags
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*
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* Used by the driver to indicate which info in &struct station_info
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* it has filled in during get_station() or dump_station().
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*
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* @STATION_INFO_INACTIVE_TIME: @inactive_time filled
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* @STATION_INFO_RX_BYTES: @rx_bytes filled
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* @STATION_INFO_TX_BYTES: @tx_bytes filled
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* @STATION_INFO_LLID: @llid filled
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* @STATION_INFO_PLID: @plid filled
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* @STATION_INFO_PLINK_STATE: @plink_state filled
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*/
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enum station_info_flags {
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STATION_INFO_INACTIVE_TIME = 1<<0,
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STATION_INFO_RX_BYTES = 1<<1,
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STATION_INFO_TX_BYTES = 1<<2,
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STATION_INFO_LLID = 1<<3,
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STATION_INFO_PLID = 1<<4,
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STATION_INFO_PLINK_STATE = 1<<5,
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};
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/**
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* struct station_info - station information
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*
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* Station information filled by driver for get_station() and dump_station.
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*
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* @filled: bitflag of flags from &enum station_info_flags
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* @inactive_time: time since last station activity (tx/rx) in milliseconds
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* @rx_bytes: bytes received from this station
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* @tx_bytes: bytes transmitted to this station
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* @llid: mesh local link id
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* @plid: mesh peer link id
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* @plink_state: mesh peer link state
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*/
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struct station_info {
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u32 filled;
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u32 inactive_time;
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u32 rx_bytes;
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u32 tx_bytes;
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u16 llid;
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u16 plid;
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u8 plink_state;
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};
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/**
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* enum monitor_flags - monitor flags
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*
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* Monitor interface configuration flags. Note that these must be the bits
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* according to the nl80211 flags.
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*
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* @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
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* @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
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* @MONITOR_FLAG_CONTROL: pass control frames
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* @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
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* @MONITOR_FLAG_COOK_FRAMES: report frames after processing
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*/
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enum monitor_flags {
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MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
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MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
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MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
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MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
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MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
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};
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/**
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* enum mpath_info_flags - mesh path information flags
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*
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* Used by the driver to indicate which info in &struct mpath_info it has filled
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* in during get_station() or dump_station().
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*
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* MPATH_INFO_FRAME_QLEN: @frame_qlen filled
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* MPATH_INFO_DSN: @dsn filled
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* MPATH_INFO_METRIC: @metric filled
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* MPATH_INFO_EXPTIME: @exptime filled
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* MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
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* MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
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* MPATH_INFO_FLAGS: @flags filled
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*/
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enum mpath_info_flags {
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MPATH_INFO_FRAME_QLEN = BIT(0),
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MPATH_INFO_DSN = BIT(1),
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MPATH_INFO_METRIC = BIT(2),
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MPATH_INFO_EXPTIME = BIT(3),
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MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4),
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MPATH_INFO_DISCOVERY_RETRIES = BIT(5),
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MPATH_INFO_FLAGS = BIT(6),
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};
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/**
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* struct mpath_info - mesh path information
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*
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* Mesh path information filled by driver for get_mpath() and dump_mpath().
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*
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* @filled: bitfield of flags from &enum mpath_info_flags
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* @frame_qlen: number of queued frames for this destination
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* @dsn: destination sequence number
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* @metric: metric (cost) of this mesh path
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* @exptime: expiration time for the mesh path from now, in msecs
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* @flags: mesh path flags
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* @discovery_timeout: total mesh path discovery timeout, in msecs
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* @discovery_retries: mesh path discovery retries
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*/
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struct mpath_info {
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u32 filled;
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u32 frame_qlen;
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u32 dsn;
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u32 metric;
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u32 exptime;
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u32 discovery_timeout;
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u8 discovery_retries;
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u8 flags;
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};
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/**
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* struct bss_parameters - BSS parameters
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*
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* Used to change BSS parameters (mainly for AP mode).
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*
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* @use_cts_prot: Whether to use CTS protection
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* (0 = no, 1 = yes, -1 = do not change)
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* @use_short_preamble: Whether the use of short preambles is allowed
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* (0 = no, 1 = yes, -1 = do not change)
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* @use_short_slot_time: Whether the use of short slot time is allowed
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* (0 = no, 1 = yes, -1 = do not change)
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*/
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struct bss_parameters {
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int use_cts_prot;
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int use_short_preamble;
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int use_short_slot_time;
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};
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/* from net/wireless.h */
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struct wiphy;
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/**
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* struct cfg80211_ops - backend description for wireless configuration
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*
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* This struct is registered by fullmac card drivers and/or wireless stacks
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* in order to handle configuration requests on their interfaces.
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*
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* All callbacks except where otherwise noted should return 0
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* on success or a negative error code.
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*
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* All operations are currently invoked under rtnl for consistency with the
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* wireless extensions but this is subject to reevaluation as soon as this
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* code is used more widely and we have a first user without wext.
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*
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* @add_virtual_intf: create a new virtual interface with the given name
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*
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* @del_virtual_intf: remove the virtual interface determined by ifindex.
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*
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* @change_virtual_intf: change type of virtual interface
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*
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* @add_key: add a key with the given parameters. @mac_addr will be %NULL
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* when adding a group key.
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*
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* @get_key: get information about the key with the given parameters.
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* @mac_addr will be %NULL when requesting information for a group
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* key. All pointers given to the @callback function need not be valid
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* after it returns.
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*
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* @del_key: remove a key given the @mac_addr (%NULL for a group key)
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* and @key_index
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*
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* @set_default_key: set the default key on an interface
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*
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* @add_beacon: Add a beacon with given parameters, @head, @interval
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* and @dtim_period will be valid, @tail is optional.
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* @set_beacon: Change the beacon parameters for an access point mode
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* interface. This should reject the call when no beacon has been
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* configured.
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* @del_beacon: Remove beacon configuration and stop sending the beacon.
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*
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* @add_station: Add a new station.
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*
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* @del_station: Remove a station; @mac may be NULL to remove all stations.
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*
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* @change_station: Modify a given station.
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*
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* @set_mesh_cfg: set mesh parameters (by now, just mesh id)
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*
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* @change_bss: Modify parameters for a given BSS.
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*/
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struct cfg80211_ops {
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int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
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enum nl80211_iftype type, u32 *flags,
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struct vif_params *params);
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int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
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int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
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enum nl80211_iftype type, u32 *flags,
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struct vif_params *params);
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int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
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u8 key_index, u8 *mac_addr,
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struct key_params *params);
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int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
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u8 key_index, u8 *mac_addr, void *cookie,
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void (*callback)(void *cookie, struct key_params*));
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int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
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u8 key_index, u8 *mac_addr);
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int (*set_default_key)(struct wiphy *wiphy,
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struct net_device *netdev,
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u8 key_index);
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int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
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struct beacon_parameters *info);
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int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
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struct beacon_parameters *info);
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int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
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int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
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u8 *mac, struct station_parameters *params);
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int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
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u8 *mac);
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int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
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u8 *mac, struct station_parameters *params);
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int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
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u8 *mac, struct station_info *sinfo);
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int (*dump_station)(struct wiphy *wiphy, struct net_device *dev,
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int idx, u8 *mac, struct station_info *sinfo);
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int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
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u8 *dst, u8 *next_hop);
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int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
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u8 *dst);
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int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
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u8 *dst, u8 *next_hop);
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int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
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u8 *dst, u8 *next_hop,
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struct mpath_info *pinfo);
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int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
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int idx, u8 *dst, u8 *next_hop,
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struct mpath_info *pinfo);
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int (*change_bss)(struct wiphy *wiphy, struct net_device *dev,
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struct bss_parameters *params);
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};
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#endif /* __NET_CFG80211_H */
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