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-rw-r--r--net/mac80211/util.c73
1 files changed, 0 insertions, 73 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ffb6e88f2ecd..949d857debd8 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -35,15 +35,6 @@
35/* privid for wiphys to determine whether they belong to us or not */ 35/* privid for wiphys to determine whether they belong to us or not */
36void *mac80211_wiphy_privid = &mac80211_wiphy_privid; 36void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
37 37
38/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
39/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
40const unsigned char rfc1042_header[] __aligned(2) =
41 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
42
43/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
44const unsigned char bridge_tunnel_header[] __aligned(2) =
45 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
46
47struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy) 38struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy)
48{ 39{
49 struct ieee80211_local *local; 40 struct ieee80211_local *local;
@@ -103,70 +94,6 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
103 return NULL; 94 return NULL;
104} 95}
105 96
106unsigned int ieee80211_hdrlen(__le16 fc)
107{
108 unsigned int hdrlen = 24;
109
110 if (ieee80211_is_data(fc)) {
111 if (ieee80211_has_a4(fc))
112 hdrlen = 30;
113 if (ieee80211_is_data_qos(fc))
114 hdrlen += IEEE80211_QOS_CTL_LEN;
115 goto out;
116 }
117
118 if (ieee80211_is_ctl(fc)) {
119 /*
120 * ACK and CTS are 10 bytes, all others 16. To see how
121 * to get this condition consider
122 * subtype mask: 0b0000000011110000 (0x00F0)
123 * ACK subtype: 0b0000000011010000 (0x00D0)
124 * CTS subtype: 0b0000000011000000 (0x00C0)
125 * bits that matter: ^^^ (0x00E0)
126 * value of those: 0b0000000011000000 (0x00C0)
127 */
128 if ((fc & cpu_to_le16(0x00E0)) == cpu_to_le16(0x00C0))
129 hdrlen = 10;
130 else
131 hdrlen = 16;
132 }
133out:
134 return hdrlen;
135}
136EXPORT_SYMBOL(ieee80211_hdrlen);
137
138unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
139{
140 const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *)skb->data;
141 unsigned int hdrlen;
142
143 if (unlikely(skb->len < 10))
144 return 0;
145 hdrlen = ieee80211_hdrlen(hdr->frame_control);
146 if (unlikely(hdrlen > skb->len))
147 return 0;
148 return hdrlen;
149}
150EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
151
152int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
153{
154 int ae = meshhdr->flags & IEEE80211S_FLAGS_AE;
155 /* 7.1.3.5a.2 */
156 switch (ae) {
157 case 0:
158 return 6;
159 case 1:
160 return 12;
161 case 2:
162 return 18;
163 case 3:
164 return 24;
165 default:
166 return 6;
167 }
168}
169
170void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) 97void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
171{ 98{
172 struct sk_buff *skb = tx->skb; 99 struct sk_buff *skb = tx->skb;