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Diffstat (limited to 'net/mac80211/mesh.c')
-rw-r--r--net/mac80211/mesh.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 73ac607beb5d..6a381cbe1e33 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -1255,13 +1255,12 @@ int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
}
static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt, size_t len)
+ struct ieee80211_mgmt *mgmt, size_t len,
+ struct ieee802_11_elems *elems)
{
struct ieee80211_mgmt *mgmt_fwd;
struct sk_buff *skb;
struct ieee80211_local *local = sdata->local;
- u8 *pos = mgmt->u.action.u.chan_switch.variable;
- size_t offset_ttl;
skb = dev_alloc_skb(local->tx_headroom + len);
if (!skb)
@@ -1269,13 +1268,9 @@ static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
skb_reserve(skb, local->tx_headroom);
mgmt_fwd = skb_put(skb, len);
- /* offset_ttl is based on whether the secondary channel
- * offset is available or not. Subtract 1 from the mesh TTL
- * and disable the initiator flag before forwarding.
- */
- offset_ttl = (len < 42) ? 7 : 10;
- *(pos + offset_ttl) -= 1;
- *(pos + offset_ttl + 1) &= ~WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
+ elems->mesh_chansw_params_ie->mesh_ttl--;
+ elems->mesh_chansw_params_ie->mesh_flags &=
+ ~WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
memcpy(mgmt_fwd, mgmt, len);
eth_broadcast_addr(mgmt_fwd->da);
@@ -1323,7 +1318,7 @@ static void mesh_rx_csa_frame(struct ieee80211_sub_if_data *sdata,
/* forward or re-broadcast the CSA frame */
if (fwd_csa) {
- if (mesh_fwd_csa_frame(sdata, mgmt, len) < 0)
+ if (mesh_fwd_csa_frame(sdata, mgmt, len, &elems) < 0)
mcsa_dbg(sdata, "Failed to forward the CSA frame");
}
}