38587f87ed
This patch introduces 802.11ac support to mac80211 and hostapd. The split of VHT160 in two 80 MHz bands is not yet supported, since it requires an additional user supplied parameter for the channel of the second band. Signed-off-by: Matti Laakso <malaakso@elisanet.fi> Signed-off-by: Simon Wunderlich <simon@open-mesh.com> [sven@open-mesh.com: Rebased patch, merged htmode and vhtmode, removed special hwmode, replaced uci vht_capab list with overwritable autoconfig, fixed hostapd integration, fixed commit description, add HT40+/- for VHT modes, add VHT40 center_freq autoconfig, refactored major parts] Signed-off-by: Sven Eckelmann <sven@open-mesh.com> SVN-Revision: 39456
611 lines
16 KiB
Bash
611 lines
16 KiB
Bash
#!/bin/sh
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. /lib/netifd/netifd-wireless.sh
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. /lib/netifd/hostapd.sh
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init_wireless_driver "$@"
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MP_CONFIG_INT="mesh_retry_timeout mesh_confirm_timeout mesh_holding_timeout mesh_max_peer_links
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mesh_max_retries mesh_ttl mesh_element_ttl mesh_hwmp_max_preq_retries
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mesh_path_refresh_time mesh_min_discovery_timeout mesh_hwmp_active_path_timeout
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mesh_hwmp_preq_min_interval mesh_hwmp_net_diameter_traversal_time mesh_hwmp_rootmode
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mesh_hwmp_rann_interval mesh_gate_announcements mesh_sync_offset_max_neighor
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mesh_rssi_threshold mesh_hwmp_active_path_to_root_timeout mesh_hwmp_root_interval
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mesh_hwmp_confirmation_interval mesh_awake_window mesh_plink_timeout"
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MP_CONFIG_BOOL="mesh_auto_open_plinks mesh_fwding"
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MP_CONFIG_STRING="mesh_power_mode"
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drv_mac80211_init_device_config() {
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hostapd_common_add_device_config
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config_add_string path phy macaddr
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config_add_string hwmode
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config_add_int beacon_int chanbw frag rts
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config_add_int rxantenna txantenna antenna_gain txpower distance
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config_add_boolean noscan
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config_add_array ht_capab
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config_add_boolean \
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rxldpc \
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short_gi_80 \
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short_gi_160 \
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tx_stbc_2by1 \
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su_beamformer \
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su_beamformee \
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mu_beamformer \
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mu_beamformee \
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vht_txop_ps \
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htc_vht \
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rx_antenna_pattern \
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tx_antenna_pattern
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config_add_int vht_max_mpdu vht_max_rx_stbc vht_link_adapt vht160
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}
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drv_mac80211_init_iface_config() {
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hostapd_common_add_bss_config
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config_add_string macaddr ifname
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config_add_boolean wds powersave
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config_add_int maxassoc
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config_add_int max_listen_int
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config_add_int dtim_interval
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# mesh
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config_add_int $MP_CONFIG_INT
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config_add_boolean $MP_CONFIG_BOOL
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config_add_string $MP_CONFIG_STRING
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}
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mac80211_hostapd_setup_base() {
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local phy="$1"
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json_select config
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[ "$auto_channel" -gt 0 ] && channel=acs_survey
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[ "$enable_ht" -gt 0 ] && {
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json_get_vars noscan htmode
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json_get_values ht_capab_list ht_capab
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append base_cfg "ieee80211n=1" "$N"
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ht_capab=
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case "$htmode" in
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HT20|HT40-|HT40+) ht_capab="[$htmode]";;
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VHT40|VHT80|VHT160)
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case "$channel" in
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36|44|52|60|100|108|116|124|132|140|149|157) ht_capab="[HT40+]";;
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40|48|56|64|104|112|120|128|136|144|153|161) ht_capab="[HT40-]";;
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esac
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;;
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esac
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for cap in $ht_capab_list; do
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ht_capab="$ht_capab[$cap]"
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done
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[ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
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# 802.11ac
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enable_ac=0
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idx="$channel"
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case "$htmode" in
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VHT40)
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case "$channel" in
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36|40) idx=38;;
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44|48) idx=42;;
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52|56) idx=54;;
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60|64) idx=58;;
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100|104) idx=102;;
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108|112) idx=110;;
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116|120) idx=118;;
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124|128) idx=126;;
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132|136) idx=134;;
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140|144) idx=142;;
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149|153) idx=151;;
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157|161) idx=159;;
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esac
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enable_ac=1
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append base_cfg "vht_oper_chwidth=0" "$N"
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append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
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;;
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VHT80)
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case "$channel" in
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36|40|44|48) idx=42;;
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52|56|60|64) idx=58;;
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100|104|108|112) idx=106;;
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116|120|124|128) idx=122;;
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132|136|140|144) idx=138;;
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149|153|157|161) idx=155;;
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esac
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enable_ac=1
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append base_cfg "vht_oper_chwidth=1" "$N"
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append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
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;;
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VHT160)
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case "$channel" in
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36|40|44|48|52|56|60|64) idx=50;;
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100|104|108|112|116|120|124|128) idx=114;;
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esac
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enable_ac=1
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append base_cfg "vht_oper_chwidth=2" "$N"
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append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
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;;
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esac
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if [ "$enable_ac" != "0" ]; then
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json_get_vars \
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rxldpc:1 \
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short_gi_80:1 \
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short_gi_160:1 \
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tx_stbc_2by1:1 \
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su_beamformer:1 \
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su_beamformee:1 \
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mu_beamformer:1 \
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mu_beamformee:1 \
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vht_txop_ps:1 \
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htc_vht:1 \
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rx_antenna_pattern:1 \
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tx_antenna_pattern:1 \
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vht_max_mpdu:11454 \
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vht_max_rx_stbc:4 \
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vht_link_adapt:3 \
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vht160:2
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append base_cfg "ieee80211ac=1" "$N"
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vht_capab=""
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vht_cap=0
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for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
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vht_cap="$(($vht_cap | $cap))"
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done
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# boolean
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[ "$((($vht_cap & 16) * $rxldpc))" -eq 16 ] && \
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vht_capab="$vht_capab[RXLDPC]"
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[ "$((($vht_cap & 32) * $short_gi_80))" -eq 32 ] && \
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vht_capab="$vht_capab[SHORT-GI-80]"
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[ "$((($vht_cap & 64) * $short_gi_160))" -eq 64 ] && \
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vht_capab="$vht_capab[SHORT-GI-160]"
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[ "$((($vht_cap & 128) * $tx_stbc_2by1))" -eq 128 ] && \
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vht_capab="$vht_capab[TX-STBC-2BY1]"
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[ "$((($vht_cap & 2048) * $su_beamformer))" -eq 2048 ] && \
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vht_capab="$vht_capab[SU-BEAMFORMER]"
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[ "$((($vht_cap & 4096) * $su_beamformee))" -eq 4096 ] && \
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vht_capab="$vht_capab[SU-BEAMFORMEE]"
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[ "$((($vht_cap & 524288) * $mu_beamformer))" -eq 524288 ] && \
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vht_capab="$vht_capab[MU-BEAMFORMER]"
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[ "$((($vht_cap & 1048576) * $mu_beamformee))" -eq 1048576 ] && \
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vht_capab="$vht_capab[MU-BEAMFORMEE]"
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[ "$((($vht_cap & 2097152) * $vht_txop_ps))" -eq 2097152 ] && \
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vht_capab="$vht_capab[VHT-TXOP-PS]"
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[ "$((($vht_cap & 4194304) * $htc_vht))" -eq 4194304 ] && \
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vht_capab="$vht_capab[HTC-VHT]"
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[ "$((($vht_cap & 268435456) * $rx_antenna_pattern))" -eq 268435456 ] && \
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vht_capab="$vht_capab[RX-ANTENNA-PATTERN]"
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[ "$((($vht_cap & 536870912) * $tx_antenna_pattern))" -eq 536870912 ] && \
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vht_capab="$vht_capab[TX-ANTENNA-PATTERN]"
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# supported Channel widths
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vht160_hw=0
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[ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
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vht160_hw=1
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[ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
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vht160_hw=2
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[ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
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[ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
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# maximum MPDU length
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vht_max_mpdu_hw=3895
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[ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
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vht_max_mpdu_hw=7991
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[ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
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vht_max_mpdu_hw=11454
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[ "$vht_max_mpdu_hw" != 3895 ] && \
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vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
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# support for the reception of PPDUs using STBC
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vht_max_rx_stbc_hw=0
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[ "$(($vht_cap & 1792))" -ge 256 -a 1 -le "$vht_max_rx_stbc" ] && \
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vht_max_rx_stbc_hw=1
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[ "$(($vht_cap & 1792))" -ge 512 -a 2 -le "$vht_max_rx_stbc" ] && \
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vht_max_rx_stbc_hw=2
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[ "$(($vht_cap & 1792))" -ge 768 -a 3 -le "$vht_max_rx_stbc" ] && \
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vht_max_rx_stbc_hw=3
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[ "$(($vht_cap & 1792))" -ge 1024 -a 4 -le "$vht_max_rx_stbc" ] && \
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vht_max_rx_stbc_hw=4
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[ "$vht_max_rx_stbc_hw" = 1 ] && vht_capab="$vht_capab[RX-STBC-1]"
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[ "$vht_max_rx_stbc_hw" = 2 ] && vht_capab="$vht_capab[RX-STBC-12]"
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[ "$vht_max_rx_stbc_hw" = 3 ] && vht_capab="$vht_capab[RX-STBC-123]"
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[ "$vht_max_rx_stbc_hw" = 4 ] && vht_capab="$vht_capab[RX-STBC-1234]"
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# whether or not the STA supports link adaptation using VHT variant
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vht_link_adapt_hw=0
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[ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
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vht_link_adapt_hw=2
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[ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
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vht_link_adapt_hw=3
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[ "$vht_link_adapt_hw" != 0 ] && \
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vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
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[ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
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fi
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}
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hostapd_prepare_device_config "$hostapd_conf_file" nl80211
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cat >> "$hostapd_conf_file" <<EOF
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${channel:+channel=$channel}
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${noscan:+noscan=$noscan}
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$base_cfg
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EOF
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json_select ..
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}
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mac80211_hostapd_setup_bss() {
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local phy="$1"
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local ifname="$2"
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local macaddr="$3"
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local type="$4"
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hostapd_cfg=
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append hostapd_cfg "$type=$ifname" "$N"
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hostapd_set_bss_options hostapd_cfg "$vif" || return 1
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json_get_vars wds dtim_period max_listen_int
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set_default wds 0
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[ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
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[ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N"
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cat >> /var/run/hostapd-$phy.conf <<EOF
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$hostapd_cfg
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bssid=$macaddr
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${dtim_period:+dtim_period=$dtim_period}
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${max_listen_int:+max_listen_interval=$max_listen_int}
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EOF
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}
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mac80211_generate_mac() {
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local phy="$1"
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local id="${macidx:-0}"
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local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
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local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
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[ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
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local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
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local mask1=$1
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local mask6=$6
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local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
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macidx=$(($id + 1))
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[ "$((0x$mask1))" -gt 0 ] && {
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b1="0x$1"
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[ "$id" -gt 0 ] && \
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b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
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printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
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return
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}
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[ "$((0x$mask6))" -lt 255 ] && {
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printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
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return
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}
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off2=$(( (0x$6 + $id) / 0x100 ))
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printf "%s:%s:%s:%s:%02x:%02x" \
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$1 $2 $3 $4 \
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$(( (0x$5 + $off2) % 0x100 )) \
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$(( (0x$6 + $id) % 0x100 ))
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}
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find_phy() {
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[ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
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[ -n "$path" -a -d "/sys/devices/$path/ieee80211" ] && {
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phy="$(ls /sys/devices/$path/ieee80211 | grep -m 1 phy)"
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[ -n "$phy" ] && return 0
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}
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[ -n "$macaddr" ] && {
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for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
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grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
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done
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}
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return 1
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}
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mac80211_check_ap() {
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has_ap=1
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}
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mac80211_prepare_vif() {
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json_select config
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json_get_vars ifname mode ssid wds powersave macaddr
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[ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
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if_idx=$((${if_idx:-0} + 1))
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set_default wds 0
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set_default powersave 0
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json_select ..
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[ -n "$macaddr" ] || {
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macaddr="$(mac80211_generate_mac $phy)"
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macidx="$(($macidx + 1))"
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}
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json_add_object data
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json_add_string ifname "$ifname"
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json_close_object
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json_select config
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# It is far easier to delete and create the desired interface
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case "$mode" in
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adhoc)
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iw phy "$phy" interface add "$ifname" type adhoc
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;;
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ap)
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# Hostapd will handle recreating the interface and
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# subsequent virtual APs belonging to the same PHY
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if [ -n "$hostapd_ctrl" ]; then
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type=bss
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else
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type=interface
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fi
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mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
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[ -n "$hostapd_ctrl" ] || {
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iw phy "$phy" interface add "$ifname" type managed
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hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
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}
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;;
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mesh)
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json_get_vars key mesh_id
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if [ -n "$key" ]; then
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iw phy "$phy" interface add "$ifname" type mp
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else
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iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
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fi
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;;
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monitor)
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iw phy "$phy" interface add "$ifname" type monitor
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;;
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sta)
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local wdsflag=
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staidx="$(($staidx + 1))"
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[ "$wds" -gt 0 ] && wdsflag="4addr on"
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iw phy "$phy" interface add "$ifname" type managed $wdsflag
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[ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
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iw "$ifname" set power_save "$powersave"
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;;
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esac
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case "$mode" in
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monitor|mesh)
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[ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
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;;
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esac
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if [ "$mode" != "ap" ]; then
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# ALL ap functionality will be passed to hostapd
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# All interfaces must have unique mac addresses
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# which can either be explicitly set in the device
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# section, or automatically generated
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ifconfig "$ifname" hw ether "$macaddr"
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fi
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json_select ..
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}
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mac80211_setup_supplicant() {
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wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
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wpa_supplicant_add_network "$ifname"
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wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
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}
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mac80211_setup_adhoc() {
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json_get_vars bssid ssid key mcast_rate
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keyspec=
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[ "$auth_type" == "wep" ] && {
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set_default key 1
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case "$key" in
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[1234])
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local idx
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for idx in 1 2 3 4; do
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json_get_var ikey "key$idx"
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[ -n "$ikey" ] && {
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ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
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[ $idx -eq $key ] && ikey="d:$ikey"
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append keyspec "$ikey"
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}
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done
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;;
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*)
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append keyspec "d:0:$(prepare_key_wep "$key")"
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;;
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esac
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}
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brstr=
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for br in $basic_rate_list; do
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hostapd_add_rate brstr "$br"
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done
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mcval=
|
|
[ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate"
|
|
|
|
iw dev "$ifname" ibss join "$ssid" $freq $htmode fixed-freq $bssid \
|
|
${beacon_int:+beacon-interval $beacon_int} \
|
|
${brstr:+basic-rates $brstr} \
|
|
${mcval:+mcast-rate $mcval} \
|
|
${keyspec:+keys $keyspec}
|
|
}
|
|
|
|
mac80211_setup_vif() {
|
|
local name="$1"
|
|
|
|
json_select data
|
|
json_get_vars ifname
|
|
json_select ..
|
|
|
|
json_select config
|
|
json_get_vars mode
|
|
json_get_var vif_txpower txpower
|
|
|
|
ifconfig "$ifname" up || {
|
|
wireless_setup_vif_failed IFUP_ERROR
|
|
json_select ..
|
|
return
|
|
}
|
|
|
|
set_default vif_txpower "$txpower"
|
|
[ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
|
|
|
|
case "$mode" in
|
|
mesh)
|
|
for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
|
|
json_get_var mp_val "$var"
|
|
[ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
|
|
done
|
|
# todo: authsae
|
|
;;
|
|
adhoc)
|
|
wireless_vif_parse_encryption
|
|
if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
|
|
mac80211_setup_supplicant || failed=1
|
|
else
|
|
mac80211_setup_adhoc
|
|
fi
|
|
;;
|
|
sta)
|
|
mac80211_setup_supplicant || failed=1
|
|
;;
|
|
esac
|
|
|
|
json_select ..
|
|
[ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
|
|
}
|
|
|
|
get_freq() {
|
|
local phy="$1"
|
|
local chan="$2"
|
|
iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
|
|
}
|
|
|
|
mac80211_interface_cleanup() {
|
|
local phy="$1"
|
|
|
|
for wdev in $(list_phy_interfaces "$phy"); do
|
|
ifconfig "$wdev" down 2>/dev/null
|
|
iw dev "$wdev" del
|
|
done
|
|
}
|
|
|
|
drv_mac80211_cleanup() {
|
|
hostapd_common_cleanup
|
|
}
|
|
|
|
drv_mac80211_setup() {
|
|
json_select config
|
|
json_get_vars \
|
|
phy macaddr path \
|
|
country chanbw distance \
|
|
txpower antenna_gain \
|
|
rxantenna txantenna \
|
|
frag rts beacon_int
|
|
json_get_values basic_rate_list basic_rate
|
|
json_select ..
|
|
|
|
find_phy || {
|
|
echo "Could not find PHY for device '$1'"
|
|
wireless_set_retry 0
|
|
return 1
|
|
}
|
|
|
|
wireless_set_data phy="$phy"
|
|
mac80211_interface_cleanup "$phy"
|
|
|
|
# convert channel to frequency
|
|
[ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
|
|
|
|
[ -n "$country" ] && {
|
|
iw reg get | grep -q "^country $country:" || {
|
|
iw reg set "$country"
|
|
sleep 1
|
|
}
|
|
}
|
|
|
|
hostapd_conf_file="/var/run/hostapd-$phy.conf"
|
|
|
|
no_ap=1
|
|
macidx=0
|
|
staidx=0
|
|
|
|
[ -n "$chanbw" ] && {
|
|
for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
|
|
[ -f "$file" ] && echo "$chanbw" > "$file"
|
|
done
|
|
}
|
|
|
|
set_default rxantenna all
|
|
set_default txantenna all
|
|
set_default distance 0
|
|
set_default antenna_gain 0
|
|
|
|
iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
|
|
iw phy "$phy" set antenna_gain $antenna_gain
|
|
iw phy "$phy" set distance "$distance"
|
|
|
|
[ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
|
|
[ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
|
|
|
|
has_ap=
|
|
hostapd_ctrl=
|
|
for_each_interface "ap" mac80211_check_ap
|
|
|
|
rm -f "$hostapd_conf_file"
|
|
[ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
|
|
|
|
for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
|
|
for_each_interface "ap" mac80211_prepare_vif
|
|
|
|
[ -n "$hostapd_ctrl" ] && {
|
|
/usr/sbin/hostapd -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
|
|
ret="$?"
|
|
wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
|
|
[ "$ret" != 0 ] && {
|
|
wireless_setup_failed HOSTAPD_START_FAILED
|
|
return
|
|
}
|
|
}
|
|
|
|
for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
|
|
|
|
wireless_set_up
|
|
}
|
|
|
|
list_phy_interfaces() {
|
|
local phy="$1"
|
|
if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
|
|
ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
|
|
else
|
|
ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
|
|
fi
|
|
}
|
|
|
|
drv_mac80211_teardown() {
|
|
wireless_process_kill_all
|
|
|
|
json_select data
|
|
json_get_vars phy
|
|
json_select ..
|
|
|
|
mac80211_interface_cleanup "$phy"
|
|
}
|
|
|
|
add_driver mac80211
|