From 176f36086e8a00bdf701dc6e4c5a8784ef6529df Mon Sep 17 00:00:00 2001 From: Thomas Pedersen Date: Wed, 26 Oct 2011 14:47:27 -0700 Subject: mac80211: add HT IEs to mesh frames Signed-off-by: Thomas Pedersen Signed-off-by: Ashok Nagarajan Signed-off-by: John W. Linville --- net/mac80211/mesh.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) (limited to 'net/mac80211/mesh.c') diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index a7078fdba8ca..2dc76a962930 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -341,6 +341,49 @@ int mesh_add_ds_params_ie(struct sk_buff *skb, return 0; } +int mesh_add_ht_cap_ie(struct sk_buff *skb, + struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + u8 *pos; + + sband = local->hw.wiphy->bands[local->oper_channel->band]; + if (!sband->ht_cap.ht_supported || + local->_oper_channel_type == NL80211_CHAN_NO_HT) + return 0; + + if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap)) + return -ENOMEM; + + pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap)); + ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap); + + return 0; +} + +int mesh_add_ht_info_ie(struct sk_buff *skb, + struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_channel *channel = local->oper_channel; + enum nl80211_channel_type channel_type = local->_oper_channel_type; + struct ieee80211_supported_band *sband = + local->hw.wiphy->bands[channel->band]; + struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap; + u8 *pos; + + if (!ht_cap->ht_supported || channel_type == NL80211_CHAN_NO_HT) + return 0; + + if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_info)) + return -ENOMEM; + + pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_info)); + ieee80211_ie_build_ht_info(pos, ht_cap, channel, channel_type); + + return 0; +} static void ieee80211_mesh_path_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = -- cgit v1.2.3 From 739522baa1d6804a3ff33e8c135db0e6b2165f75 Mon Sep 17 00:00:00 2001 From: Thomas Pedersen Date: Wed, 26 Oct 2011 14:47:28 -0700 Subject: mac80211: set HT capabilities for mesh peer Set peer's HT capabilities, and disallow peering if we're on a different channel type. Signed-off-by: Thomas Pedersen Signed-off-by: Ashok Nagarajan Signed-off-by: John W. Linville --- net/mac80211/mesh.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) (limited to 'net/mac80211/mesh.c') diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 2dc76a962930..b3a125f60347 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -76,6 +76,7 @@ static void ieee80211_mesh_housekeeping_timer(unsigned long data) bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; + struct ieee80211_local *local = sdata->local; /* * As support for each feature is added, check for matching @@ -87,15 +88,23 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat * - MDA enabled * - Power management control on fc */ - if (ifmsh->mesh_id_len == ie->mesh_id_len && - memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 && - (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) && - (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) && - (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) && - (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) && - (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth)) - return true; - + if (!(ifmsh->mesh_id_len == ie->mesh_id_len && + memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 && + (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) && + (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) && + (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) && + (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) && + (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))) + goto mismatch; + + /* disallow peering with mismatched channel types for now */ + if (ie->ht_info_elem && + (local->_oper_channel_type != + ieee80211_ht_info_to_channel_type(ie->ht_info_elem))) + goto mismatch; + + return true; +mismatch: return false; } -- cgit v1.2.3 From ef96a84202ccfb48a4569256ffba45e32308f7ee Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Fri, 18 Nov 2011 11:32:00 -0800 Subject: mac80211: Support ht-cap over-rides. This implements ht-cap over-rides for mac80211 drivers. HT may be disabled, making an /a/b/g/n station act like an a/b/g station. HT40 may be disabled forcing the station to be HT20 even if the AP and local hardware support HT40. MAX-AMSDU may be disabled. AMPDU-Density may be increased. AMPDU-Factor may be decreased. This has been successfully tested with ath9k using patched wpa_supplicant and iw. Signed-off-by: Ben Greear Signed-off-by: John W. Linville --- net/mac80211/mesh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/mac80211/mesh.c') diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index b3a125f60347..ee82d2f7f114 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -366,7 +366,7 @@ int mesh_add_ht_cap_ie(struct sk_buff *skb, return -ENOMEM; pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap)); - ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap); + ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, sband->ht_cap.cap); return 0; } -- cgit v1.2.3 From dca7e9430cb3e492437a5ce891b8b3e315c147ca Mon Sep 17 00:00:00 2001 From: Thomas Pedersen Date: Thu, 24 Nov 2011 17:15:24 -0800 Subject: {nl,cfg,mac}80211: implement dot11MeshHWMPperrMinInterval As per 802.11mb 13.9.11.3 Signed-off-by: Thomas Pedersen Signed-off-by: Javier Cardona Signed-off-by: John W. Linville --- net/mac80211/mesh.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/mac80211/mesh.c') diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index ee82d2f7f114..c707c8bf6d2c 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -749,6 +749,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata) atomic_set(&ifmsh->mpaths, 0); mesh_rmc_init(sdata); ifmsh->last_preq = jiffies; + ifmsh->next_perr = jiffies; /* Allocate all mesh structures when creating the first mesh interface. */ if (!mesh_allocated) ieee80211s_init(); -- cgit v1.2.3