Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

7 files changed, 201 insertions, 212 deletions

diff --git a/net/wireless/core.h b/net/wireless/core.h
index 1c7d4df5418c..fb08c28fc90a 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -341,13 +341,17 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
                           const u8 *bssid, const u8 *prev_bssid,
                           const u8 *ssid, int ssid_len,
                           const u8 *ie, int ie_len, bool use_mfp,
-                          struct cfg80211_crypto_settings *crypt);
+                          struct cfg80211_crypto_settings *crypt,
+                          u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
+                          struct ieee80211_ht_cap *ht_capa_mask);
 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
                         struct net_device *dev, struct ieee80211_channel *chan,
                         const u8 *bssid, const u8 *prev_bssid,
                         const u8 *ssid, int ssid_len,
                         const u8 *ie, int ie_len, bool use_mfp,
-                        struct cfg80211_crypto_settings *crypt);
+                        struct cfg80211_crypto_settings *crypt,
+                        u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
+                        struct ieee80211_ht_cap *ht_capa_mask);
 int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
                            struct net_device *dev, const u8 *bssid,
                            const u8 *ie, int ie_len, u16 reason,
@@ -379,6 +383,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
                           bool channel_type_valid, unsigned int wait,
                           const u8 *buf, size_t len, bool no_cck,
                           bool dont_wait_for_ack, u64 *cookie);
+void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
+                               const struct ieee80211_ht_cap *ht_capa_mask);
 
 /* SME */
 int __cfg80211_connect(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 6c1bafd508c8..438dfc105b4a 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -501,13 +501,32 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
         return err;
 }
 
+/*  Do a logical ht_capa &= ht_capa_mask.  */
+void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
+                               const struct ieee80211_ht_cap *ht_capa_mask)
+{
+        int i;
+        u8 *p1, *p2;
+        if (!ht_capa_mask) {
+                memset(ht_capa, 0, sizeof(*ht_capa));
+                return;
+        }
+
+        p1 = (u8*)(ht_capa);
+        p2 = (u8*)(ht_capa_mask);
+        for (i = 0; i<sizeof(*ht_capa); i++)
+                p1[i] &= p2[i];
+}
+
 int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
                           struct net_device *dev,
                           struct ieee80211_channel *chan,
                           const u8 *bssid, const u8 *prev_bssid,
                           const u8 *ssid, int ssid_len,
                           const u8 *ie, int ie_len, bool use_mfp,
-                          struct cfg80211_crypto_settings *crypt)
+                          struct cfg80211_crypto_settings *crypt,
+                          u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
+                          struct ieee80211_ht_cap *ht_capa_mask)
 {
         struct wireless_dev *wdev = dev->ieee80211_ptr;
         struct cfg80211_assoc_request req;
@@ -537,6 +556,15 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
         memcpy(&req.crypto, crypt, sizeof(req.crypto));
         req.use_mfp = use_mfp;
         req.prev_bssid = prev_bssid;
+        req.flags = assoc_flags;
+        if (ht_capa)
+                memcpy(&req.ht_capa, ht_capa, sizeof(req.ht_capa));
+        if (ht_capa_mask)
+                memcpy(&req.ht_capa_mask, ht_capa_mask,
+                       sizeof(req.ht_capa_mask));
+        cfg80211_oper_and_ht_capa(&req.ht_capa_mask,
+                                  rdev->wiphy.ht_capa_mod_mask);
+
         req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
                                    WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
         if (!req.bss) {
@@ -574,14 +602,17 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
                         const u8 *bssid, const u8 *prev_bssid,
                         const u8 *ssid, int ssid_len,
                         const u8 *ie, int ie_len, bool use_mfp,
-                        struct cfg80211_crypto_settings *crypt)
+                        struct cfg80211_crypto_settings *crypt,
+                        u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
+                        struct ieee80211_ht_cap *ht_capa_mask)
 {
         struct wireless_dev *wdev = dev->ieee80211_ptr;
         int err;
 
         wdev_lock(wdev);
         err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
-                                    ssid, ssid_len, ie, ie_len, use_mfp, crypt);
+                                    ssid, ssid_len, ie, ie_len, use_mfp, crypt,
+                                    assoc_flags, ht_capa, ht_capa_mask);
         wdev_unlock(wdev);
 
         return err;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 6bc7c4b32fa5..a1cabde7cb5f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -199,6 +199,11 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
         [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
         [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
                                       .len = IEEE80211_MAX_DATA_LEN },
+        [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
+        [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
+        [NL80211_ATTR_HT_CAPABILITY_MASK] = {
+                .len = NL80211_HT_CAPABILITY_LEN
+        },
 };
 
 /* policy for the key attributes */
@@ -881,7 +886,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
         CMD(set_pmksa, SET_PMKSA);
         CMD(del_pmksa, DEL_PMKSA);
         CMD(flush_pmksa, FLUSH_PMKSA);
-        CMD(remain_on_channel, REMAIN_ON_CHANNEL);
+        if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
+                CMD(remain_on_channel, REMAIN_ON_CHANNEL);
         CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
         CMD(mgmt_tx, FRAME);
         CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
@@ -903,6 +909,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
                 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
         }
 
+#ifdef CONFIG_NL80211_TESTMODE
+        CMD(testmode_cmd, TESTMODE);
+#endif
+
 #undef CMD
 
         if (dev->ops->connect || dev->ops->auth) {
@@ -917,11 +927,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 
         nla_nest_end(msg, nl_cmds);
 
-        if (dev->ops->remain_on_channel)
+        if (dev->ops->remain_on_channel &&
+            dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
                 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
                             dev->wiphy.max_remain_on_channel_duration);
 
-        if (dev->ops->mgmt_tx_cancel_wait)
+        if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
                 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
 
         if (mgmt_stypes) {
@@ -1025,6 +1036,11 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 
         NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
 
+        if (dev->wiphy.ht_capa_mod_mask)
+                NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
+                        sizeof(*dev->wiphy.ht_capa_mod_mask),
+                        dev->wiphy.ht_capa_mod_mask);
+
         return genlmsg_end(msg, hdr);
 
  nla_put_failure:
@@ -2478,26 +2494,34 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
 /*
  * Get vlan interface making sure it is running and on the right wiphy.
  */
-static int get_vlan(struct genl_info *info,
-                    struct cfg80211_registered_device *rdev,
-                    struct net_device **vlan)
+static struct net_device *get_vlan(struct genl_info *info,
+                                   struct cfg80211_registered_device *rdev)
 {
         struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
-        *vlan = NULL;
-
-        if (vlanattr) {
-                *vlan = dev_get_by_index(genl_info_net(info),
-                                         nla_get_u32(vlanattr));
-                if (!*vlan)
-                        return -ENODEV;
-                if (!(*vlan)->ieee80211_ptr)
-                        return -EINVAL;
-                if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
-                        return -EINVAL;
-                if (!netif_running(*vlan))
-                        return -ENETDOWN;
+        struct net_device *v;
+        int ret;
+
+        if (!vlanattr)
+                return NULL;
+
+        v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
+        if (!v)
+                return ERR_PTR(-ENODEV);
+
+        if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
+                ret = -EINVAL;
+                goto error;
         }
-        return 0;
+
+        if (!netif_running(v)) {
+                ret = -ENETDOWN;
+                goto error;
+        }
+
+        return v;
+ error:
+        dev_put(v);
+        return ERR_PTR(ret);
 }
 
 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
@@ -2547,9 +2571,9 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
                 params.plink_state =
                     nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
 
-        err = get_vlan(info, rdev, &params.vlan);
-        if (err)
-                goto out;
+        params.vlan = get_vlan(info, rdev);
+        if (IS_ERR(params.vlan))
+                return PTR_ERR(params.vlan);
 
         /* validate settings */
         err = 0;
@@ -2717,9 +2741,9 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
               (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
                 return -EINVAL;
 
-        err = get_vlan(info, rdev, &params.vlan);
-        if (err)
-                goto out;
+        params.vlan = get_vlan(info, rdev);
+        if (IS_ERR(params.vlan))
+                return PTR_ERR(params.vlan);
 
         /* validate settings */
         err = 0;
@@ -3382,6 +3406,9 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
 
         NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
                 cfg80211_regdomain->alpha2);
+        if (cfg80211_regdomain->dfs_region)
+                NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
+                           cfg80211_regdomain->dfs_region);
 
         nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
         if (!nl_reg_rules)
@@ -3440,6 +3467,7 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
         char *alpha2 = NULL;
         int rem_reg_rules = 0, r = 0;
         u32 num_rules = 0, rule_idx = 0, size_of_regd;
+        u8 dfs_region = 0;
         struct ieee80211_regdomain *rd = NULL;
 
         if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
@@ -3450,6 +3478,9 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 
         alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
 
+        if (info->attrs[NL80211_ATTR_DFS_REGION])
+                dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
+
         nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
                         rem_reg_rules) {
                 num_rules++;
@@ -3477,6 +3508,13 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
         rd->alpha2[0] = alpha2[0];
         rd->alpha2[1] = alpha2[1];
 
+        /*
+         * Disable DFS master mode if the DFS region was
+         * not supported or known on this kernel.
+         */
+        if (reg_supported_dfs_region(dfs_region))
+                rd->dfs_region = dfs_region;
+
         nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
                         rem_reg_rules) {
                 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
@@ -4384,6 +4422,9 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
         const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
         int err, ssid_len, ie_len = 0;
         bool use_mfp = false;
+        u32 flags = 0;
+        struct ieee80211_ht_cap *ht_capa = NULL;
+        struct ieee80211_ht_cap *ht_capa_mask = NULL;
 
         if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
                 return -EINVAL;
@@ -4427,11 +4468,25 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
         if (info->attrs[NL80211_ATTR_PREV_BSSID])
                 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
 
+        if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
+                flags |= ASSOC_REQ_DISABLE_HT;
+
+        if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
+                ht_capa_mask =
+                        nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
+
+        if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
+                if (!ht_capa_mask)
+                        return -EINVAL;
+                ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
+        }
+
         err = nl80211_crypto_settings(rdev, info, &crypto, 1);
         if (!err)
                 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
                                           ssid, ssid_len, ie, ie_len, use_mfp,
-                                          &crypto);
+                                          &crypto, flags, ht_capa,
+                                          ht_capa_mask);
 
         return err;
 }
@@ -4921,6 +4976,22 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
                         return PTR_ERR(connkeys);
         }
 
+        if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
+                connect.flags |= ASSOC_REQ_DISABLE_HT;
+
+        if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
+                memcpy(&connect.ht_capa_mask,
+                       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
+                       sizeof(connect.ht_capa_mask));
+
+        if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
+                if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
+                        return -EINVAL;
+                memcpy(&connect.ht_capa,
+                       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
+                       sizeof(connect.ht_capa));
+        }
+
         err = cfg80211_connect(rdev, dev, &connect, connkeys);
         if (err)
                 kfree(connkeys);
@@ -5108,7 +5179,8 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
             duration > rdev->wiphy.max_remain_on_channel_duration)
                 return -EINVAL;
 
-        if (!rdev->ops->remain_on_channel)
+        if (!rdev->ops->remain_on_channel ||
+            !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
                 return -EOPNOTSUPP;
 
         if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
@@ -5321,7 +5393,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
                 return -EOPNOTSUPP;
 
         if (info->attrs[NL80211_ATTR_DURATION]) {
-                if (!rdev->ops->mgmt_tx_cancel_wait)
+                if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
                         return -EINVAL;
                 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
         }
@@ -5339,6 +5411,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 
         offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
 
+        if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
+                return -EINVAL;
+
         no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
 
         freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 77e926738014..76b35df39623 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1123,6 +1123,8 @@ static void wiphy_update_regulatory(struct wiphy *wiphy,
         if (ignore_reg_update(wiphy, initiator))
                 return;
 
+        last_request->dfs_region = cfg80211_regdomain->dfs_region;
+
         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
                 if (wiphy->bands[band])
                         handle_band(wiphy, band, initiator);
@@ -1948,6 +1950,42 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
         }
 }
 
+bool reg_supported_dfs_region(u8 dfs_region)
+{
+        switch (dfs_region) {
+        case NL80211_DFS_UNSET:
+        case NL80211_DFS_FCC:
+        case NL80211_DFS_ETSI:
+        case NL80211_DFS_JP:
+                return true;
+        default:
+                REG_DBG_PRINT("Ignoring uknown DFS master region: %d\n",
+                              dfs_region);
+                return false;
+        }
+}
+
+static void print_dfs_region(u8 dfs_region)
+{
+        if (!dfs_region)
+                return;
+
+        switch (dfs_region) {
+        case NL80211_DFS_FCC:
+                pr_info(" DFS Master region FCC");
+                break;
+        case NL80211_DFS_ETSI:
+                pr_info(" DFS Master region ETSI");
+                break;
+        case NL80211_DFS_JP:
+                pr_info(" DFS Master region JP");
+                break;
+        default:
+                pr_info(" DFS Master region Uknown");
+                break;
+        }
+}
+
 static void print_regdomain(const struct ieee80211_regdomain *rd)
 {
 
@@ -1975,6 +2013,7 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
                         pr_info("Regulatory domain changed to country: %c%c\n",
                                 rd->alpha2[0], rd->alpha2[1]);
         }
+        print_dfs_region(rd->dfs_region);
         print_rd_rules(rd);
 }
 
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index 4a56799d868d..786e414afd91 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -5,6 +5,7 @@ extern const struct ieee80211_regdomain *cfg80211_regdomain;
 
 bool is_world_regdom(const char *alpha2);
 bool reg_is_valid_request(const char *alpha2);
+bool reg_supported_dfs_region(u8 dfs_region);
 
 int regulatory_hint_user(const char *alpha2);
 
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 0acfdc9beacf..f0c900ce2fb9 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -190,7 +190,9 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
                                             prev_bssid,
                                             params->ssid, params->ssid_len,
                                             params->ie, params->ie_len,
-                                            false, &params->crypto);
+                                            false, &params->crypto,
+                                            params->flags, &params->ht_capa,
+                                            &params->ht_capa_mask);
                 if (err)
                         __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
                                                NULL, 0,
@@ -774,6 +776,9 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev,
                 wdev->connect_keys = NULL;
         }
 
+        cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
+                                  rdev->wiphy.ht_capa_mod_mask);
+
         if (connkeys && connkeys->def >= 0) {
                 int idx;
                 u32 cipher;
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 4dde429441d2..9c601d59b77a 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -7,7 +7,6 @@
 #include <linux/bitops.h>
 #include <linux/etherdevice.h>
 #include <linux/slab.h>
-#include <linux/crc32.h>
 #include <net/cfg80211.h>
 #include <net/ip.h>
 #include "core.h"
@@ -240,17 +239,6 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
         return 0;
 }
 
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] __aligned(2) =
-        { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-EXPORT_SYMBOL(rfc1042_header);
-
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] __aligned(2) =
-        { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-EXPORT_SYMBOL(bridge_tunnel_header);
-
 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc)
 {
         unsigned int hdrlen = 24;
@@ -1051,169 +1039,13 @@ int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
         return 0;
 }
 
-u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
-                               struct ieee802_11_elems *elems,
-                               u64 filter, u32 crc)
-{
-        size_t left = len;
-        u8 *pos = start;
-        bool calc_crc = filter != 0;
-
-        memset(elems, 0, sizeof(*elems));
-        elems->ie_start = start;
-        elems->total_len = len;
-
-        while (left >= 2) {
-                u8 id, elen;
-
-                id = *pos++;
-                elen = *pos++;
-                left -= 2;
-
-                if (elen > left)
-                        break;
-
-                if (calc_crc && id < 64 && (filter & (1ULL << id)))
-                        crc = crc32_be(crc, pos - 2, elen + 2);
-
-                switch (id) {
-                case WLAN_EID_SSID:
-                        elems->ssid = pos;
-                        elems->ssid_len = elen;
-                        break;
-                case WLAN_EID_SUPP_RATES:
-                        elems->supp_rates = pos;
-                        elems->supp_rates_len = elen;
-                        break;
-                case WLAN_EID_FH_PARAMS:
-                        elems->fh_params = pos;
-                        elems->fh_params_len = elen;
-                        break;
-                case WLAN_EID_DS_PARAMS:
-                        elems->ds_params = pos;
-                        elems->ds_params_len = elen;
-                        break;
-                case WLAN_EID_CF_PARAMS:
-                        elems->cf_params = pos;
-                        elems->cf_params_len = elen;
-                        break;
-                case WLAN_EID_TIM:
-                        if (elen >= sizeof(struct ieee80211_tim_ie)) {
-                                elems->tim = (void *)pos;
-                                elems->tim_len = elen;
-                        }
-                        break;
-                case WLAN_EID_IBSS_PARAMS:
-                        elems->ibss_params = pos;
-                        elems->ibss_params_len = elen;
-                        break;
-                case WLAN_EID_CHALLENGE:
-                        elems->challenge = pos;
-                        elems->challenge_len = elen;
-                        break;
-                case WLAN_EID_VENDOR_SPECIFIC:
-                        if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
-                            pos[2] == 0xf2) {
-                                /* Microsoft OUI (00:50:F2) */
-
-                                if (calc_crc)
-                                        crc = crc32_be(crc, pos - 2, elen + 2);
-
-                                if (pos[3] == 1) {
-                                        /* OUI Type 1 - WPA IE */
-                                        elems->wpa = pos;
-                                        elems->wpa_len = elen;
-                                } else if (elen >= 5 && pos[3] == 2) {
-                                        /* OUI Type 2 - WMM IE */
-                                        if (pos[4] == 0) {
-                                                elems->wmm_info = pos;
-                                                elems->wmm_info_len = elen;
-                                        } else if (pos[4] == 1) {
-                                                elems->wmm_param = pos;
-                                                elems->wmm_param_len = elen;
-                                        }
-                                }
-                        }
-                        break;
-                case WLAN_EID_RSN:
-                        elems->rsn = pos;
-                        elems->rsn_len = elen;
-                        break;
-                case WLAN_EID_ERP_INFO:
-                        elems->erp_info = pos;
-                        elems->erp_info_len = elen;
-                        break;
-                case WLAN_EID_EXT_SUPP_RATES:
-                        elems->ext_supp_rates = pos;
-                        elems->ext_supp_rates_len = elen;
-                        break;
-                case WLAN_EID_HT_CAPABILITY:
-                        if (elen >= sizeof(struct ieee80211_ht_cap))
-                                elems->ht_cap_elem = (void *)pos;
-                        break;
-                case WLAN_EID_HT_INFORMATION:
-                        if (elen >= sizeof(struct ieee80211_ht_info))
-                                elems->ht_info_elem = (void *)pos;
-                        break;
-                case WLAN_EID_MESH_ID:
-                        elems->mesh_id = pos;
-                        elems->mesh_id_len = elen;
-                        break;
-                case WLAN_EID_MESH_CONFIG:
-                        if (elen >= sizeof(struct ieee80211_meshconf_ie))
-                                elems->mesh_config = (void *)pos;
-                        break;
-                case WLAN_EID_PEER_MGMT:
-                        elems->peering = pos;
-                        elems->peering_len = elen;
-                        break;
-                case WLAN_EID_PREQ:
-                        elems->preq = pos;
-                        elems->preq_len = elen;
-                        break;
-                case WLAN_EID_PREP:
-                        elems->prep = pos;
-                        elems->prep_len = elen;
-                        break;
-                case WLAN_EID_PERR:
-                        elems->perr = pos;
-                        elems->perr_len = elen;
-                        break;
-                case WLAN_EID_RANN:
-                        if (elen >= sizeof(struct ieee80211_rann_ie))
-                                elems->rann = (void *)pos;
-                        break;
-                case WLAN_EID_CHANNEL_SWITCH:
-                        elems->ch_switch_elem = pos;
-                        elems->ch_switch_elem_len = elen;
-                        break;
-                case WLAN_EID_QUIET:
-                        if (!elems->quiet_elem) {
-                                elems->quiet_elem = pos;
-                                elems->quiet_elem_len = elen;
-                        }
-                        elems->num_of_quiet_elem++;
-                        break;
-                case WLAN_EID_COUNTRY:
-                        elems->country_elem = pos;
-                        elems->country_elem_len = elen;
-                        break;
-                case WLAN_EID_PWR_CONSTRAINT:
-                        elems->pwr_constr_elem = pos;
-                        elems->pwr_constr_elem_len = elen;
-                        break;
-                case WLAN_EID_TIMEOUT_INTERVAL:
-                        elems->timeout_int = pos;
-                        elems->timeout_int_len = elen;
-                        break;
-                default:
-                        break;
-                }
-
-                left -= elen;
-                pos += elen;
-        }
+/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
+/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
+const unsigned char rfc1042_header[] __aligned(2) =
+        { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+EXPORT_SYMBOL(rfc1042_header);
 
-        return crc;
-}
-EXPORT_SYMBOL(ieee802_11_parse_elems_crc);
+/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
+const unsigned char bridge_tunnel_header[] __aligned(2) =
+        { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
+EXPORT_SYMBOL(bridge_tunnel_header);