mac80211: Encrypt "Group addressed privacy" action frames

[carl9170fw.git] / include / linux / ieee80211.h

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 2ab55a59d36082cc8b31a1b7ea8b47eae18388aa..a004aca7c631e046de1bc604dff6d43446f7215d 100644 (file)
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -7,6 +7,7 @@
  * Copyright (c) 2005, Devicescape Software, Inc.
  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
  * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright (c) 2016 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -158,6 +159,9 @@ static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 #define IEEE80211_MAX_FRAME_LEN                2352
 
+/* Maximal size of an A-MSDU that can be transported in a HT BA session */
+#define IEEE80211_MAX_MPDU_LEN_HT_BA           4095
+
 /* Maximal size of an A-MSDU */
 #define IEEE80211_MAX_MPDU_LEN_HT_3839         3839
 #define IEEE80211_MAX_MPDU_LEN_HT_7935         7935
@@ -643,6 +647,16 @@ static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
        return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 }
 
+/**
+ * ieee80211_is_frag - check if a frame is a fragment
+ * @hdr: 802.11 header of the frame
+ */
+static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
+{
+       return ieee80211_has_morefrags(hdr->frame_control) ||
+              hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
+}
+
 struct ieee80211s_hdr {
        u8 flags;
        u8 ttl;
@@ -1014,6 +1028,16 @@ struct ieee80211_mgmt {
                                        u8 tpc_elem_length;
                                        struct ieee80211_tpc_report_ie tpc;
                                } __packed tpc_report;
+                               struct {
+                                       u8 action_code;
+                                       u8 dialog_token;
+                                       u8 follow_up;
+                                       u8 tod[6];
+                                       u8 toa[6];
+                                       __le16 tod_error;
+                                       __le16 toa_error;
+                                       u8 variable[0];
+                               } __packed ftm;
                        } u;
                } __packed action;
        } u;
@@ -2467,6 +2491,28 @@ static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
        return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
 }
 
+static inline bool is_multicast_ether_addr(const u8 *a)
+{
+        return 0x01 & a[0];
+}
+
+/**
+ * _ieee80211_is_group_privacy_action - check if frame is a group addressed
+ * privacy action frame
+ * @hdr: the frame
+ */
+static inline bool ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
+{
+       struct ieee80211_mgmt *mgmt = (void *)hdr;
+
+       if (!ieee80211_is_action(hdr->frame_control) ||
+           !is_multicast_ether_addr(hdr->addr1))
+               return false;
+
+       return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
+              mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
+}
+
 /**
  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
  * @tu: the TUs