diff options
-rw-r--r-- | net/mac80211/cfg.c | 21 | ||||
-rw-r--r-- | net/mac80211/ibss.c | 54 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 2 | ||||
-rw-r--r-- | net/mac80211/util.c | 87 | ||||
-rw-r--r-- | net/wireless/nl80211.c | 1 |
5 files changed, 111 insertions, 54 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 67f62da..8cdbd29 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3014,6 +3014,7 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_local *local = sdata->local; struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_chanctx *chanctx; + struct ieee80211_if_mesh __maybe_unused *ifmsh; int err, num_chanctx; if (!list_empty(&local->roc_list) || local->scanning) @@ -3097,6 +3098,26 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, if (err < 0) return err; break; +#ifdef CONFIG_MAC80211_MESH + case NL80211_IFTYPE_MESH_POINT: + ifmsh = &sdata->u.mesh; + + if (!ifmsh->mesh_id) + return -EINVAL; + + if (params->chandef.width != sdata->vif.bss_conf.chandef.width) + return -EINVAL; + + /* changes into another band are not supported */ + if (sdata->vif.bss_conf.chandef.chan->band != + params->chandef.chan->band) + return -EINVAL; + + err = ieee80211_send_action_csa(sdata, params); + if (err < 0) + return err; + break; +#endif default: return -EOPNOTSUPP; } diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index a0ae027..531be04 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -464,60 +464,6 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, tsf, false); } -static int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, - struct cfg80211_csa_settings *csa_settings) -{ - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; - struct ieee80211_local *local = sdata->local; - int freq; - int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) + - sizeof(mgmt->u.action.u.chan_switch); - u8 *pos; - - skb = dev_alloc_skb(local->tx_headroom + hdr_len + - 5 + /* channel switch announcement element */ - 3); /* secondary channel offset element */ - if (!skb) - return -1; - - skb_reserve(skb, local->tx_headroom); - mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len); - memset(mgmt, 0, hdr_len); - mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_ACTION); - - eth_broadcast_addr(mgmt->da); - memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); - memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); - mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; - mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; - pos = skb_put(skb, 5); - *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ - *pos++ = 3; /* IE length */ - *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ - freq = csa_settings->chandef.chan->center_freq; - *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ - *pos++ = csa_settings->count; /* count */ - - if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { - enum nl80211_channel_type ch_type; - - skb_put(skb, 3); - *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ - *pos++ = 1; /* IE length */ - ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); - if (ch_type == NL80211_CHAN_HT40PLUS) - *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; - else - *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; - } - - ieee80211_tx_skb(sdata, skb); - return 0; -} - int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, struct cfg80211_csa_settings *csa_settings) { diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 4ebbcc6..9aad167 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1731,6 +1731,8 @@ void ieee80211_dfs_cac_timer(unsigned long data); void ieee80211_dfs_cac_timer_work(struct work_struct *work); void ieee80211_dfs_cac_cancel(struct ieee80211_local *local); void ieee80211_dfs_radar_detected_work(struct work_struct *work); +int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, + struct cfg80211_csa_settings *csa_settings); #ifdef CONFIG_MAC80211_NOINLINE #define debug_noinline noinline diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 523783c..a38d582 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2384,3 +2384,90 @@ bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, return false; } + +int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, + struct cfg80211_csa_settings *csa_settings) +{ + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + struct ieee80211_local *local = sdata->local; + int freq; + int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) + + sizeof(mgmt->u.action.u.chan_switch); + u8 *pos; + + if (sdata->vif.type != NL80211_IFTYPE_ADHOC && + sdata->vif.type != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; + + skb = dev_alloc_skb(local->tx_headroom + hdr_len + + 5 + /* channel switch announcement element */ + 3 + /* secondary channel offset element */ + 8); /* mesh channel switch parameters element */ + if (!skb) + return -ENOMEM; + + skb_reserve(skb, local->tx_headroom); + mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len); + memset(mgmt, 0, hdr_len); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + + eth_broadcast_addr(mgmt->da); + memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); + if (ieee80211_vif_is_mesh(&sdata->vif)) { + memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); + } else { + struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; + memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); + } + mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; + mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; + pos = skb_put(skb, 5); + *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ + *pos++ = 3; /* IE length */ + *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ + freq = csa_settings->chandef.chan->center_freq; + *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ + *pos++ = csa_settings->count; /* count */ + + if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { + enum nl80211_channel_type ch_type; + + skb_put(skb, 3); + *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ + *pos++ = 1; /* IE length */ + ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); + if (ch_type == NL80211_CHAN_HT40PLUS) + *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + else + *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; + } + + if (ieee80211_vif_is_mesh(&sdata->vif)) { + struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; + __le16 pre_value; + + skb_put(skb, 8); + *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ + *pos++ = 6; /* IE length */ + *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ + *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ + *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; + *pos++ |= csa_settings->block_tx ? + WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; + put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ + pos += 2; + if (!ifmsh->pre_value) + ifmsh->pre_value = 1; + else + ifmsh->pre_value++; + pre_value = cpu_to_le16(ifmsh->pre_value); + memcpy(pos, &pre_value, 2); /* Precedence Value */ + pos += 2; + ifmsh->chsw_init = true; + } + + ieee80211_tx_skb(sdata, skb); + return 0; +} diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 7502d33..b8d6f10 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -5700,6 +5700,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) return -EINVAL; break; case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_MESH_POINT: break; default: return -EOPNOTSUPP; |