diff options
Diffstat (limited to 'package/kernel/mac80211/patches/320-mac80211-fix-A-MSDU-outer-SA-DA.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/320-mac80211-fix-A-MSDU-outer-SA-DA.patch | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/320-mac80211-fix-A-MSDU-outer-SA-DA.patch b/package/kernel/mac80211/patches/320-mac80211-fix-A-MSDU-outer-SA-DA.patch new file mode 100644 index 0000000000..7700254cd1 --- /dev/null +++ b/package/kernel/mac80211/patches/320-mac80211-fix-A-MSDU-outer-SA-DA.patch @@ -0,0 +1,73 @@ +From: Michael Braun <michael-dev@fami-braun.de> +Date: Sat, 15 Oct 2016 13:28:19 +0200 +Subject: [PATCH] mac80211: fix A-MSDU outer SA/DA + +According to IEEE 802.11-2012 section 8.3.2 table 8-19, the outer SA/DA +of A-MSDU frames need to be changed depending on FromDS/ToDS values. + +Signed-off-by: Michael Braun <michael-dev@fami-braun.de> +[use ether_addr_copy and add alignment annotations] +Signed-off-by: Johannes Berg <johannes.berg@intel.com> +--- + +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -1438,7 +1438,7 @@ enum ieee80211_vif_flags { + struct ieee80211_vif { + enum nl80211_iftype type; + struct ieee80211_bss_conf bss_conf; +- u8 addr[ETH_ALEN]; ++ u8 addr[ETH_ALEN] __aligned(2); + bool p2p; + bool csa_active; + bool mu_mimo_owner; +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -443,7 +443,7 @@ struct ieee80211_if_managed { + struct ieee80211_mgd_auth_data *auth_data; + struct ieee80211_mgd_assoc_data *assoc_data; + +- u8 bssid[ETH_ALEN]; ++ u8 bssid[ETH_ALEN] __aligned(2); + + u16 aid; + +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -3074,6 +3074,7 @@ static bool ieee80211_amsdu_prepare_head + int subframe_len = skb->len - hdr_len; + void *data; + u8 *qc, *h_80211_src, *h_80211_dst; ++ const u8 *bssid; + + if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) + return false; +@@ -3097,6 +3098,28 @@ static bool ieee80211_amsdu_prepare_head + ether_addr_copy(amsdu_hdr->h_source, h_80211_src); + ether_addr_copy(amsdu_hdr->h_dest, h_80211_dst); + ++ /* according to IEEE 802.11-2012 8.3.2 table 8-19, the outer SA/DA ++ * fields needs to be changed to BSSID for A-MSDU frames depending ++ * on FromDS/ToDS values. ++ */ ++ switch (sdata->vif.type) { ++ case NL80211_IFTYPE_STATION: ++ bssid = sdata->u.mgd.bssid; ++ break; ++ case NL80211_IFTYPE_AP: ++ case NL80211_IFTYPE_AP_VLAN: ++ bssid = sdata->vif.addr; ++ break; ++ default: ++ bssid = NULL; ++ } ++ ++ if (bssid && ieee80211_has_fromds(hdr->frame_control)) ++ ether_addr_copy(h_80211_src, bssid); ++ ++ if (bssid && ieee80211_has_tods(hdr->frame_control)) ++ ether_addr_copy(h_80211_dst, bssid); ++ + qc = ieee80211_get_qos_ctl(hdr); + *qc |= IEEE80211_QOS_CTL_A_MSDU_PRESENT; + |