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Code Issues Releases Wiki Activity

mac80211: remove WDS-related code 

Now that all the mac80211-based drivers have removed WDS code
and in particular the ability to advertise such devices, also
remove all the code related to WDS here.

Link: https://lore.kernel.org/r/20201109105103.38960c413d46.I3603c90a44562d847c39d15d5ff33d8c00df5834@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2020-11-09 10:57:46 +01:00
parent 801a46bda5
commit 70d9c59909
11 changed files with 10 additions and 132 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
net/mac80211/cfg.c
View File

@ -2708,16 +2708,6 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy,
return 0;
}
static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
const u8 *addr)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
return 0;
}
static void ieee80211_rfkill_poll(struct wiphy *wiphy)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
@ -4138,7 +4128,6 @@ const struct cfg80211_ops mac80211_config_ops = {
.set_wiphy_params = ieee80211_set_wiphy_params,
.set_tx_power = ieee80211_set_tx_power,
.get_tx_power = ieee80211_get_tx_power,
.set_wds_peer = ieee80211_set_wds_peer,
.rfkill_poll = ieee80211_rfkill_poll,
CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)

3
net/mac80211/chan.c
View File

@ -275,11 +275,11 @@ ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
case NL80211_IFTYPE_NAN:
continue;
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_OCB:
width = vif->bss_conf.chandef.width;
break;
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_MONITOR:
@ -743,7 +743,6 @@ void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
continue;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_OCB:
break;

11
net/mac80211/debugfs_netdev.c
View File

@ -574,9 +574,6 @@ static ssize_t ieee80211_if_parse_tsf(
IEEE80211_IF_FILE_RW(tsf);
/* WDS attributes */
IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
#ifdef CONFIG_MAC80211_MESH
IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
@ -701,11 +698,6 @@ static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD_MODE(tsf, 0600);
}
static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(peer);
}
#ifdef CONFIG_MAC80211_MESH
static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
@ -805,9 +797,6 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
case NL80211_IFTYPE_AP_VLAN:
add_vlan_files(sdata);
break;
case NL80211_IFTYPE_WDS:
add_wds_files(sdata);
break;
default:
break;
}

6
net/mac80211/ieee80211_i.h
View File

@ -311,11 +311,6 @@ struct ieee80211_if_ap {
bool multicast_to_unicast;
};
struct ieee80211_if_wds {
struct sta_info *sta;
u8 remote_addr[ETH_ALEN];
};
struct ieee80211_if_vlan {
struct list_head list; /* write-protected with RTNL and local->mtx */
@ -985,7 +980,6 @@ struct ieee80211_sub_if_data {
union {
struct ieee80211_if_ap ap;
struct ieee80211_if_wds wds;
struct ieee80211_if_vlan vlan;
struct ieee80211_if_managed mgd;
struct ieee80211_if_ibss ibss;

52
net/mac80211/iface.c
View File

@ -230,10 +230,6 @@ static inline int identical_mac_addr_allowed(int type1, int type2)
type2 == NL80211_IFTYPE_MONITOR ||
type1 == NL80211_IFTYPE_P2P_DEVICE ||
type2 == NL80211_IFTYPE_P2P_DEVICE ||
(type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_WDS) ||
(type1 == NL80211_IFTYPE_WDS &&
(type2 == NL80211_IFTYPE_WDS ||
type2 == NL80211_IFTYPE_AP)) ||
(type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_AP_VLAN) ||
(type1 == NL80211_IFTYPE_AP_VLAN &&
(type2 == NL80211_IFTYPE_AP ||
@ -417,15 +413,12 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
* (because if we remove a STA after ops->remove_interface()
* the driver will have removed the vif info already!)
*
* In WDS mode a station must exist here and be flushed, for
* AP_VLANs stations may exist since there's nothing else that
* For AP_VLANs stations may exist since there's nothing else that
* would have removed them, but in other modes there shouldn't
* be any stations.
*/
flushed = sta_info_flush(sdata);
WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
((sdata->vif.type != NL80211_IFTYPE_WDS && flushed > 0) ||
(sdata->vif.type == NL80211_IFTYPE_WDS && flushed != 1)));
WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP_VLAN && flushed > 0);
/* don't count this interface for allmulti while it is down */
if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
@ -552,8 +545,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
* When we get here, the interface is marked down.
* Free the remaining keys, if there are any
* (which can happen in AP mode if userspace sets
* keys before the interface is operating, and maybe
* also in WDS mode)
* keys before the interface is operating)
*
* Force the key freeing to always synchronize_net()
* to wait for the RX path in case it is using this
@ -1020,16 +1012,11 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct net_device *dev = wdev->netdev;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
u32 changed = 0;
int res;
u32 hw_reconf_flags = 0;
switch (sdata->vif.type) {
case NL80211_IFTYPE_WDS:
if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
return -ENOLINK;
break;
case NL80211_IFTYPE_AP_VLAN: {
struct ieee80211_sub_if_data *master;
@ -1078,6 +1065,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_WDS:
/* cannot happen */
WARN_ON(1);
break;
@ -1196,7 +1184,6 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
case NL80211_IFTYPE_OCB:
netif_carrier_off(dev);
break;
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_NAN:
break;
@ -1218,28 +1205,6 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
set_bit(SDATA_STATE_RUNNING, &sdata->state);
switch (sdata->vif.type) {
case NL80211_IFTYPE_WDS:
/* Create STA entry for the WDS peer */
sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
GFP_KERNEL);
if (!sta) {
res = -ENOMEM;
goto err_del_interface;
}
sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
res = sta_info_insert(sta);
if (res) {
/* STA has been freed */
goto err_del_interface;
}
rate_control_rate_init(sta);
netif_carrier_on(dev);
break;
case NL80211_IFTYPE_P2P_DEVICE:
rcu_assign_pointer(local->p2p_sdata, sdata);
break;
@ -1576,9 +1541,6 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
sdata->u.mntr.flags = MONITOR_FLAG_CONTROL |
MONITOR_FLAG_OTHER_BSS;
break;
case NL80211_IFTYPE_WDS:
sdata->vif.bss_conf.bssid = NULL;
break;
case NL80211_IFTYPE_NAN:
idr_init(&sdata->u.nan.function_inst_ids);
spin_lock_init(&sdata->u.nan.func_lock);
@ -1589,6 +1551,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
sdata->vif.bss_conf.bssid = sdata->vif.addr;
break;
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_WDS:
case NUM_NL80211_IFTYPES:
WARN_ON(1);
break;
@ -1633,9 +1596,7 @@ static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
case NL80211_IFTYPE_OCB:
/*
* Could probably support everything
* but WDS here (WDS do_open can fail
* under memory pressure, which this
* code isn't prepared to handle).
* but here.
*/
break;
case NL80211_IFTYPE_P2P_CLIENT:
@ -1728,7 +1689,6 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
case NL80211_IFTYPE_MONITOR:
/* doesn't matter */
break;
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_AP_VLAN:
/* match up with an AP interface */
list_for_each_entry(sdata, &local->interfaces, list) {

8
net/mac80211/main.c
View File

@ -935,14 +935,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
return -EINVAL;
}
} else {
/*
* WDS is currently prohibited when channel contexts are used
* because there's no clear definition of which channel WDS
* type interfaces use
*/
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS))
return -EINVAL;
/* DFS is not supported with multi-channel combinations yet */
for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) {
const struct ieee80211_iface_combination *comb;

15
net/mac80211/pm.c
View File

@ -150,21 +150,6 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
case NL80211_IFTYPE_STATION:
ieee80211_mgd_quiesce(sdata);
break;
case NL80211_IFTYPE_WDS:
/* tear down aggregation sessions and remove STAs */
mutex_lock(&local->sta_mtx);
sta = sdata->u.wds.sta;
if (sta && sta->uploaded) {
enum ieee80211_sta_state state;
state = sta->sta_state;
for (; state > IEEE80211_STA_NOTEXIST; state--)
WARN_ON(drv_sta_state(local, sta->sdata,
sta, state,
state - 1));
}
mutex_unlock(&local->sta_mtx);
break;
default:
break;
}

5
net/mac80211/rx.c
View File

@ -1477,7 +1477,6 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
if (unlikely((ieee80211_is_data(hdr->frame_control) ||
ieee80211_is_pspoll(hdr->frame_control)) &&
rx->sdata->vif.type != NL80211_IFTYPE_ADHOC &&
rx->sdata->vif.type != NL80211_IFTYPE_WDS &&
rx->sdata->vif.type != NL80211_IFTYPE_OCB &&
(!rx->sta || !test_sta_flag(rx->sta, WLAN_STA_ASSOC)))) {
/*
@ -4080,10 +4079,6 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
return false;
return true;
case NL80211_IFTYPE_WDS:
if (bssid || !ieee80211_is_data(hdr->frame_control))
return false;
return ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2);
case NL80211_IFTYPE_P2P_DEVICE:
return ieee80211_is_public_action(hdr, skb->len) ||
ieee80211_is_probe_req(hdr->frame_control) ||

26
net/mac80211/tx.c
View File

@ -319,9 +319,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (tx->sdata->vif.type == NL80211_IFTYPE_OCB)
return TX_CONTINUE;
if (tx->sdata->vif.type == NL80211_IFTYPE_WDS)
return TX_CONTINUE;
if (tx->flags & IEEE80211_TX_PS_BUFFERED)
return TX_CONTINUE;
@ -2289,8 +2286,7 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
* we handle as though they are non-injected frames.
* This code here isn't entirely correct, the local MAC address
* isn't always enough to find the interface to use; for proper
* VLAN/WDS support we will need a different mechanism (which
* likely isn't going to be monitor interfaces).
* VLAN support we have an nl80211-based mechanism.
*
* This is necessary, for example, for old hostapd versions that
* don't use nl80211-based management TX/RX.
@ -2301,8 +2297,7 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
if (!ieee80211_sdata_running(tmp_sdata))
continue;
if (tmp_sdata->vif.type == NL80211_IFTYPE_MONITOR ||
tmp_sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
tmp_sdata->vif.type == NL80211_IFTYPE_WDS)
tmp_sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
continue;
if (ether_addr_equal(tmp_sdata->vif.addr, hdr->addr2)) {
sdata = tmp_sdata;
@ -2396,9 +2391,6 @@ int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
}
sta = sta_info_get_bss(sdata, skb->data);
break;
case NL80211_IFTYPE_WDS:
sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
/* determined much later */
@ -2574,20 +2566,6 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
hdrlen = 24;
band = chanctx_conf->def.chan->band;
break;
case NL80211_IFTYPE_WDS:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
/* RA TA DA SA */
memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
memcpy(hdr.addr3, skb->data, ETH_ALEN);
memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
hdrlen = 30;
/*
* This is the exception! WDS style interfaces are prohibited
* when channel contexts are in used so this must be valid
*/
band = local->hw.conf.chandef.chan->band;
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
if (!is_multicast_ether_addr(skb->data)) {

2
net/mac80211/util.c
View File

@ -2513,7 +2513,6 @@ int ieee80211_reconfig(struct ieee80211_local *local)
return res;
}
break;
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_P2P_DEVICE:
@ -2523,6 +2522,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_WDS:
WARN_ON(1);
break;
}

3
net/mac80211/wme.c
View File

@ -205,9 +205,6 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
case NL80211_IFTYPE_AP:
ra = skb->data;
break;
case NL80211_IFTYPE_WDS:
ra = sdata->u.wds.remote_addr;
break;
case NL80211_IFTYPE_STATION:
/* might be a TDLS station */
sta = sta_info_get(sdata, skb->data);