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Diffstat (limited to 'net/mac80211/mesh_plink.c')
-rw-r--r--net/mac80211/mesh_plink.c85
1 files changed, 48 insertions, 37 deletions
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index af671b984df..3ab34d81689 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -48,17 +48,17 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
u8 *da, __le16 llid, __le16 plid, __le16 reason);
static inline
-void mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
+u32 mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
{
atomic_inc(&sdata->u.mesh.mshstats.estab_plinks);
- mesh_accept_plinks_update(sdata);
+ return mesh_accept_plinks_update(sdata);
}
static inline
-void mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
+u32 mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
{
atomic_dec(&sdata->u.mesh.mshstats.estab_plinks);
- mesh_accept_plinks_update(sdata);
+ return mesh_accept_plinks_update(sdata);
}
/**
@@ -117,7 +117,7 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
u16 ht_opmode;
bool non_ht_sta = false, ht20_sta = false;
- if (local->_oper_channel_type == NL80211_CHAN_NO_HT)
+ if (sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
return 0;
rcu_read_lock();
@@ -147,7 +147,8 @@ out:
if (non_ht_sta)
ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED;
- else if (ht20_sta && local->_oper_channel_type > NL80211_CHAN_HT20)
+ else if (ht20_sta &&
+ sdata->vif.bss_conf.channel_type > NL80211_CHAN_HT20)
ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_20MHZ;
else
ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
@@ -170,22 +171,21 @@ out:
* @sta: mesh peer link to deactivate
*
* All mesh paths with this peer as next hop will be flushed
+ * Returns beacon changed flag if the beacon content changed.
*
* Locking: the caller must hold sta->lock
*/
-static bool __mesh_plink_deactivate(struct sta_info *sta)
+static u32 __mesh_plink_deactivate(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
- bool deactivated = false;
+ u32 changed = 0;
- if (sta->plink_state == NL80211_PLINK_ESTAB) {
- mesh_plink_dec_estab_count(sdata);
- deactivated = true;
- }
+ if (sta->plink_state == NL80211_PLINK_ESTAB)
+ changed = mesh_plink_dec_estab_count(sdata);
sta->plink_state = NL80211_PLINK_BLOCKED;
mesh_path_flush_by_nexthop(sta);
- return deactivated;
+ return changed;
}
/**
@@ -198,18 +198,17 @@ static bool __mesh_plink_deactivate(struct sta_info *sta)
void mesh_plink_deactivate(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
- bool deactivated;
+ u32 changed;
spin_lock_bh(&sta->lock);
- deactivated = __mesh_plink_deactivate(sta);
+ changed = __mesh_plink_deactivate(sta);
sta->reason = cpu_to_le16(WLAN_REASON_MESH_PEER_CANCELED);
mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
sta->sta.addr, sta->llid, sta->plid,
sta->reason);
spin_unlock_bh(&sta->lock);
- if (deactivated)
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ ieee80211_bss_info_change_notify(sdata, changed);
}
static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
@@ -217,12 +216,14 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
u8 *da, __le16 llid, __le16 plid, __le16 reason) {
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
+ struct ieee80211_tx_info *info;
struct ieee80211_mgmt *mgmt;
bool include_plid = false;
u16 peering_proto = 0;
u8 *pos, ie_len = 4;
int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.self_prot) +
sizeof(mgmt->u.action.u.self_prot);
+ int err = -ENOMEM;
skb = dev_alloc_skb(local->tx_headroom +
hdr_len +
@@ -238,6 +239,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
sdata->u.mesh.ie_len);
if (!skb)
return -1;
+ info = IEEE80211_SKB_CB(skb);
skb_reserve(skb, local->tx_headroom);
mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len);
memset(mgmt, 0, hdr_len);
@@ -258,15 +260,18 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
pos = skb_put(skb, 2);
memcpy(pos + 2, &plid, 2);
}
- if (ieee80211_add_srates_ie(sdata, skb, true) ||
- ieee80211_add_ext_srates_ie(sdata, skb, true) ||
+ if (ieee80211_add_srates_ie(sdata, skb, true,
+ local->oper_channel->band) ||
+ ieee80211_add_ext_srates_ie(sdata, skb, true,
+ local->oper_channel->band) ||
mesh_add_rsn_ie(skb, sdata) ||
mesh_add_meshid_ie(skb, sdata) ||
mesh_add_meshconf_ie(skb, sdata))
- return -1;
+ goto free;
} else { /* WLAN_SP_MESH_PEERING_CLOSE */
+ info->flags |= IEEE80211_TX_CTL_NO_ACK;
if (mesh_add_meshid_ie(skb, sdata))
- return -1;
+ goto free;
}
/* Add Mesh Peering Management element */
@@ -285,11 +290,12 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
ie_len += 2; /* reason code */
break;
default:
- return -EINVAL;
+ err = -EINVAL;
+ goto free;
}
if (WARN_ON(skb_tailroom(skb) < 2 + ie_len))
- return -ENOMEM;
+ goto free;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PEER_MGMT;
@@ -310,14 +316,17 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
if (action != WLAN_SP_MESH_PEERING_CLOSE) {
if (mesh_add_ht_cap_ie(skb, sdata) ||
mesh_add_ht_oper_ie(skb, sdata))
- return -1;
+ goto free;
}
if (mesh_add_vendor_ies(skb, sdata))
- return -1;
+ goto free;
ieee80211_tx_skb(sdata, skb);
return 0;
+free:
+ kfree_skb(skb);
+ return err;
}
/**
@@ -362,9 +371,14 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
spin_lock_bh(&sta->lock);
sta->last_rx = jiffies;
+ if (sta->plink_state == NL80211_PLINK_ESTAB) {
+ spin_unlock_bh(&sta->lock);
+ return sta;
+ }
+
sta->sta.supp_rates[band] = rates;
if (elems->ht_cap_elem &&
- sdata->local->_oper_channel_type != NL80211_CHAN_NO_HT)
+ sdata->vif.bss_conf.channel_type != NL80211_CHAN_NO_HT)
ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
elems->ht_cap_elem,
&sta->sta.ht_cap);
@@ -523,7 +537,8 @@ int mesh_plink_open(struct sta_info *sta)
spin_lock_bh(&sta->lock);
get_random_bytes(&llid, 2);
sta->llid = llid;
- if (sta->plink_state != NL80211_PLINK_LISTEN) {
+ if (sta->plink_state != NL80211_PLINK_LISTEN &&
+ sta->plink_state != NL80211_PLINK_BLOCKED) {
spin_unlock_bh(&sta->lock);
return -EBUSY;
}
@@ -541,15 +556,14 @@ int mesh_plink_open(struct sta_info *sta)
void mesh_plink_block(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
- bool deactivated;
+ u32 changed;
spin_lock_bh(&sta->lock);
- deactivated = __mesh_plink_deactivate(sta);
+ changed = __mesh_plink_deactivate(sta);
sta->plink_state = NL80211_PLINK_BLOCKED;
spin_unlock_bh(&sta->lock);
- if (deactivated)
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ ieee80211_bss_info_change_notify(sdata, changed);
}
@@ -852,9 +866,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
del_timer(&sta->plink_timer);
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
- mesh_plink_inc_estab_count(sdata);
+ changed |= mesh_plink_inc_estab_count(sdata);
changed |= mesh_set_ht_prot_mode(sdata);
- changed |= BSS_CHANGED_BEACON;
mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n",
sta->sta.addr);
break;
@@ -888,9 +901,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
del_timer(&sta->plink_timer);
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
- mesh_plink_inc_estab_count(sdata);
+ changed |= mesh_plink_inc_estab_count(sdata);
changed |= mesh_set_ht_prot_mode(sdata);
- changed |= BSS_CHANGED_BEACON;
mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n",
sta->sta.addr);
mesh_plink_frame_tx(sdata,
@@ -908,13 +920,12 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
case CLS_ACPT:
reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE);
sta->reason = reason;
- __mesh_plink_deactivate(sta);
+ changed |= __mesh_plink_deactivate(sta);
sta->plink_state = NL80211_PLINK_HOLDING;
llid = sta->llid;
mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
spin_unlock_bh(&sta->lock);
changed |= mesh_set_ht_prot_mode(sdata);
- changed |= BSS_CHANGED_BEACON;
mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
sta->sta.addr, llid, plid, reason);
break;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-29 05:16:22 +0000