1 files changed, 347 insertions, 23 deletions

diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index 2887047069f2..8ab9f094747b 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -117,6 +117,7 @@ MODULE_PARM_DESC(workaround_interval,
 #define OID_802_11_ADD_KEY                      cpu_to_le32(0x0d01011d)
 #define OID_802_11_REMOVE_KEY                   cpu_to_le32(0x0d01011e)
 #define OID_802_11_ASSOCIATION_INFORMATION      cpu_to_le32(0x0d01011f)
+#define OID_802_11_CAPABILITY                   cpu_to_le32(0x0d010122)
 #define OID_802_11_PMKID                        cpu_to_le32(0x0d010123)
 #define OID_802_11_NETWORK_TYPES_SUPPORTED      cpu_to_le32(0x0d010203)
 #define OID_802_11_NETWORK_TYPE_IN_USE          cpu_to_le32(0x0d010204)
@@ -358,6 +359,30 @@ struct ndis_80211_assoc_info {
         __le32 offset_resp_ies;
 } __attribute__((packed));
 
+struct ndis_80211_auth_encr_pair {
+        __le32 auth_mode;
+        __le32 encr_mode;
+} __attribute__((packed));
+
+struct ndis_80211_capability {
+        __le32 length;
+        __le32 version;
+        __le32 num_pmkids;
+        __le32 num_auth_encr_pair;
+        struct ndis_80211_auth_encr_pair auth_encr_pair[0];
+} __attribute__((packed));
+
+struct ndis_80211_bssid_info {
+        u8 bssid[6];
+        u8 pmkid[16];
+};
+
+struct ndis_80211_pmkid {
+        __le32 length;
+        __le32 bssid_info_count;
+        struct ndis_80211_bssid_info bssid_info[0];
+};
+
 /*
  *  private data
  */
@@ -476,13 +501,7 @@ struct rndis_wlan_private {
         /* encryption stuff */
         int  encr_tx_key_index;
         struct rndis_wlan_encr_key encr_keys[4];
-        enum nl80211_auth_type wpa_auth_type;
         int  wpa_version;
-        int  wpa_keymgmt;
-        int  wpa_ie_len;
-        u8  *wpa_ie;
-        int  wpa_cipher_pair;
-        int  wpa_cipher_group;
 
         u8 command_buffer[COMMAND_BUFFER_SIZE];
 };
@@ -534,6 +553,14 @@ static int rndis_get_station(struct wiphy *wiphy, struct net_device *dev,
 static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
                                int idx, u8 *mac, struct station_info *sinfo);
 
+static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+                                struct cfg80211_pmksa *pmksa);
+
+static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+                                struct cfg80211_pmksa *pmksa);
+
+static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev);
+
 static struct cfg80211_ops rndis_config_ops = {
         .change_virtual_intf = rndis_change_virtual_intf,
         .scan = rndis_scan,
@@ -550,6 +577,9 @@ static struct cfg80211_ops rndis_config_ops = {
         .set_default_key = rndis_set_default_key,
         .get_station = rndis_get_station,
         .dump_station = rndis_dump_station,
+        .set_pmksa = rndis_set_pmksa,
+        .del_pmksa = rndis_del_pmksa,
+        .flush_pmksa = rndis_flush_pmksa,
 };
 
 static void *rndis_wiphy_privid = &rndis_wiphy_privid;
@@ -704,6 +734,7 @@ static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
                 struct rndis_query_c    *get_c;
         } u;
         int ret, buflen;
+        int resplen, respoffs, copylen;
 
         buflen = *len + sizeof(*u.get);
         if (buflen < CONTROL_BUFFER_SIZE)
@@ -733,11 +764,34 @@ static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
                            le32_to_cpu(u.get_c->status));
 
         if (ret == 0) {
-                memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
+                resplen = le32_to_cpu(u.get_c->len);
+                respoffs = le32_to_cpu(u.get_c->offset) + 8;
 
-                ret = le32_to_cpu(u.get_c->len);
-                if (ret > *len)
-                        *len = ret;
+                if (respoffs > buflen) {
+                        /* Device returned data offset outside buffer, error. */
+                        netdev_dbg(dev->net, "%s(%s): received invalid "
+                                "data offset: %d > %d\n", __func__,
+                                oid_to_string(oid), respoffs, buflen);
+
+                        ret = -EINVAL;
+                        goto exit_unlock;
+                }
+
+                if ((resplen + respoffs) > buflen) {
+                        /* Device would have returned more data if buffer would
+                         * have been big enough. Copy just the bits that we got.
+                         */
+                        copylen = buflen - respoffs;
+                } else {
+                        copylen = resplen;
+                }
+
+                if (copylen > *len)
+                        copylen = *len;
+
+                memcpy(data, u.buf + respoffs, copylen);
+
+                *len = resplen;
 
                 ret = rndis_error_status(u.get_c->status);
                 if (ret < 0)
@@ -746,6 +800,7 @@ static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
                                    le32_to_cpu(u.get_c->status), ret);
         }
 
+exit_unlock:
         mutex_unlock(&priv->command_lock);
 
         if (u.buf != priv->command_buffer)
@@ -1091,8 +1146,6 @@ static int set_auth_mode(struct usbnet *usbdev, u32 wpa_version,
         }
 
         priv->wpa_version = wpa_version;
-        priv->wpa_auth_type = auth_type;
-        priv->wpa_keymgmt = keymgmt;
 
         return 0;
 }
@@ -1117,7 +1170,6 @@ static int set_priv_filter(struct usbnet *usbdev)
 
 static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
 {
-        struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
         __le32 tmp;
         int encr_mode, ret;
 
@@ -1146,8 +1198,6 @@ static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
                 return ret;
         }
 
-        priv->wpa_cipher_pair = pairwise;
-        priv->wpa_cipher_group = groupwise;
         return 0;
 }
 
@@ -1495,7 +1545,7 @@ static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
 static void set_multicast_list(struct usbnet *usbdev)
 {
         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
-        struct dev_mc_list *mclist;
+        struct netdev_hw_addr *ha;
         __le32 filter, basefilter;
         int ret;
         char *mc_addrs = NULL;
@@ -1534,9 +1584,9 @@ static void set_multicast_list(struct usbnet *usbdev)
                         return;
                 }
 
-                netdev_for_each_mc_addr(mclist, usbdev->net)
+                netdev_for_each_mc_addr(ha, usbdev->net)
                         memcpy(mc_addrs + i++ * ETH_ALEN,
-                               mclist->dmi_addr, ETH_ALEN);
+                               ha->addr, ETH_ALEN);
         }
         netif_addr_unlock_bh(usbdev->net);
 
@@ -1568,6 +1618,194 @@ set_filter:
                    le32_to_cpu(filter), ret);
 }
 
+#ifdef DEBUG
+static void debug_print_pmkids(struct usbnet *usbdev,
+                                struct ndis_80211_pmkid *pmkids,
+                                const char *func_str)
+{
+        struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+        int i, len, count, max_pmkids, entry_len;
+
+        max_pmkids = priv->wdev.wiphy->max_num_pmkids;
+        len = le32_to_cpu(pmkids->length);
+        count = le32_to_cpu(pmkids->bssid_info_count);
+
+        entry_len = (count > 0) ? (len - sizeof(*pmkids)) / count : -1;
+
+        netdev_dbg(usbdev->net, "%s(): %d PMKIDs (data len: %d, entry len: "
+                                "%d)\n", func_str, count, len, entry_len);
+
+        if (count > max_pmkids)
+                count = max_pmkids;
+
+        for (i = 0; i < count; i++) {
+                u32 *tmp = (u32 *)pmkids->bssid_info[i].pmkid;
+
+                netdev_dbg(usbdev->net, "%s():  bssid: %pM, "
+                                "pmkid: %08X:%08X:%08X:%08X\n",
+                                func_str, pmkids->bssid_info[i].bssid,
+                                cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
+                                cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
+        }
+}
+#else
+static void debug_print_pmkids(struct usbnet *usbdev,
+                                struct ndis_80211_pmkid *pmkids,
+                                const char *func_str)
+{
+        return;
+}
+#endif
+
+static struct ndis_80211_pmkid *get_device_pmkids(struct usbnet *usbdev)
+{
+        struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
+        struct ndis_80211_pmkid *pmkids;
+        int len, ret, max_pmkids;
+
+        max_pmkids = priv->wdev.wiphy->max_num_pmkids;
+        len = sizeof(*pmkids) + max_pmkids * sizeof(pmkids->bssid_info[0]);
+
+        pmkids = kzalloc(len, GFP_KERNEL);
+        if (!pmkids)
+                return ERR_PTR(-ENOMEM);
+
+        pmkids->length = cpu_to_le32(len);
+        pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
+
+        ret = rndis_query_oid(usbdev, OID_802_11_PMKID, pmkids, &len);
+        if (ret < 0) {
+                netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d)"
+                                " -> %d\n", __func__, len, max_pmkids, ret);
+
+                kfree(pmkids);
+                return ERR_PTR(ret);
+        }
+
+        if (le32_to_cpu(pmkids->bssid_info_count) > max_pmkids)
+                pmkids->bssid_info_count = cpu_to_le32(max_pmkids);
+
+        debug_print_pmkids(usbdev, pmkids, __func__);
+
+        return pmkids;
+}
+
+static int set_device_pmkids(struct usbnet *usbdev,
+                                struct ndis_80211_pmkid *pmkids)
+{
+        int ret, len, num_pmkids;
+
+        num_pmkids = le32_to_cpu(pmkids->bssid_info_count);
+        len = sizeof(*pmkids) + num_pmkids * sizeof(pmkids->bssid_info[0]);
+        pmkids->length = cpu_to_le32(len);
+
+        debug_print_pmkids(usbdev, pmkids, __func__);
+
+        ret = rndis_set_oid(usbdev, OID_802_11_PMKID, pmkids,
+                                                le32_to_cpu(pmkids->length));
+        if (ret < 0) {
+                netdev_dbg(usbdev->net, "%s(): OID_802_11_PMKID(%d, %d) -> %d"
+                                "\n", __func__, len, num_pmkids, ret);
+        }
+
+        kfree(pmkids);
+        return ret;
+}
+
+static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
+                                                struct ndis_80211_pmkid *pmkids,
+                                                struct cfg80211_pmksa *pmksa,
+                                                int max_pmkids)
+{
+        int i, len, count, newlen, err;
+
+        len = le32_to_cpu(pmkids->length);
+        count = le32_to_cpu(pmkids->bssid_info_count);
+
+        if (count > max_pmkids)
+                count = max_pmkids;
+
+        for (i = 0; i < count; i++)
+                if (!compare_ether_addr(pmkids->bssid_info[i].bssid,
+                                                        pmksa->bssid))
+                        break;
+
+        /* pmkid not found */
+        if (i == count) {
+                netdev_dbg(usbdev->net, "%s(): bssid not found (%pM)\n",
+                                        __func__, pmksa->bssid);
+                err = -ENOENT;
+                goto error;
+        }
+
+        for (; i + 1 < count; i++)
+                pmkids->bssid_info[i] = pmkids->bssid_info[i + 1];
+
+        count--;
+        newlen = sizeof(*pmkids) + count * sizeof(pmkids->bssid_info[0]);
+
+        pmkids->length = cpu_to_le32(newlen);
+        pmkids->bssid_info_count = cpu_to_le32(count);
+
+        return pmkids;
+error:
+        kfree(pmkids);
+        return ERR_PTR(err);
+}
+
+static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
+                                                struct ndis_80211_pmkid *pmkids,
+                                                struct cfg80211_pmksa *pmksa,
+                                                int max_pmkids)
+{
+        int i, err, len, count, newlen;
+
+        len = le32_to_cpu(pmkids->length);
+        count = le32_to_cpu(pmkids->bssid_info_count);
+
+        if (count > max_pmkids)
+                count = max_pmkids;
+
+        /* update with new pmkid */
+        for (i = 0; i < count; i++) {
+                if (compare_ether_addr(pmkids->bssid_info[i].bssid,
+                                                        pmksa->bssid))
+                        continue;
+
+                memcpy(pmkids->bssid_info[i].pmkid, pmksa->pmkid,
+                                                                WLAN_PMKID_LEN);
+
+                return pmkids;
+        }
+
+        /* out of space, return error */
+        if (i == max_pmkids) {
+                netdev_dbg(usbdev->net, "%s(): out of space\n", __func__);
+                err = -ENOSPC;
+                goto error;
+        }
+
+        /* add new pmkid */
+        newlen = sizeof(*pmkids) + (count + 1) * sizeof(pmkids->bssid_info[0]);
+
+        pmkids = krealloc(pmkids, newlen, GFP_KERNEL);
+        if (!pmkids) {
+                err = -ENOMEM;
+                goto error;
+        }
+
+        pmkids->length = cpu_to_le32(newlen);
+        pmkids->bssid_info_count = cpu_to_le32(count + 1);
+
+        memcpy(pmkids->bssid_info[count].bssid, pmksa->bssid, ETH_ALEN);
+        memcpy(pmkids->bssid_info[count].pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
+
+        return pmkids;
+error:
+        kfree(pmkids);
+        return ERR_PTR(err);
+}
+
 /*
  * cfg80211 ops
  */
@@ -2178,6 +2416,78 @@ static int rndis_dump_station(struct wiphy *wiphy, struct net_device *dev,
         return 0;
 }
 
+static int rndis_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+                                struct cfg80211_pmksa *pmksa)
+{
+        struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+        struct usbnet *usbdev = priv->usbdev;
+        struct ndis_80211_pmkid *pmkids;
+        u32 *tmp = (u32 *)pmksa->pmkid;
+
+        netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
+                        pmksa->bssid,
+                        cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
+                        cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
+
+        pmkids = get_device_pmkids(usbdev);
+        if (IS_ERR(pmkids)) {
+                /* couldn't read PMKID cache from device */
+                return PTR_ERR(pmkids);
+        }
+
+        pmkids = update_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
+        if (IS_ERR(pmkids)) {
+                /* not found, list full, etc */
+                return PTR_ERR(pmkids);
+        }
+
+        return set_device_pmkids(usbdev, pmkids);
+}
+
+static int rndis_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+                                struct cfg80211_pmksa *pmksa)
+{
+        struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+        struct usbnet *usbdev = priv->usbdev;
+        struct ndis_80211_pmkid *pmkids;
+        u32 *tmp = (u32 *)pmksa->pmkid;
+
+        netdev_dbg(usbdev->net, "%s(%pM, %08X:%08X:%08X:%08X)\n", __func__,
+                        pmksa->bssid,
+                        cpu_to_be32(tmp[0]), cpu_to_be32(tmp[1]),
+                        cpu_to_be32(tmp[2]), cpu_to_be32(tmp[3]));
+
+        pmkids = get_device_pmkids(usbdev);
+        if (IS_ERR(pmkids)) {
+                /* Couldn't read PMKID cache from device */
+                return PTR_ERR(pmkids);
+        }
+
+        pmkids = remove_pmkid(usbdev, pmkids, pmksa, wiphy->max_num_pmkids);
+        if (IS_ERR(pmkids)) {
+                /* not found, etc */
+                return PTR_ERR(pmkids);
+        }
+
+        return set_device_pmkids(usbdev, pmkids);
+}
+
+static int rndis_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
+{
+        struct rndis_wlan_private *priv = wiphy_priv(wiphy);
+        struct usbnet *usbdev = priv->usbdev;
+        struct ndis_80211_pmkid pmkid;
+
+        netdev_dbg(usbdev->net, "%s()\n", __func__);
+
+        memset(&pmkid, 0, sizeof(pmkid));
+
+        pmkid.length = cpu_to_le32(sizeof(pmkid));
+        pmkid.bssid_info_count = cpu_to_le32(0);
+
+        return rndis_set_oid(usbdev, OID_802_11_PMKID, &pmkid, sizeof(pmkid));
+}
+
 /*
  * workers, indication handlers, device poller
  */
@@ -2522,12 +2832,14 @@ static void rndis_wlan_indication(struct usbnet *usbdev, void *ind, int buflen)
         }
 }
 
-static int rndis_wlan_get_caps(struct usbnet *usbdev)
+static int rndis_wlan_get_caps(struct usbnet *usbdev, struct wiphy *wiphy)
 {
         struct {
                 __le32  num_items;
                 __le32  items[8];
         } networks_supported;
+        struct ndis_80211_capability *caps;
+        u8 caps_buf[sizeof(*caps) + sizeof(caps->auth_encr_pair) * 16];
         int len, retval, i, n;
         struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 
@@ -2555,6 +2867,21 @@ static int rndis_wlan_get_caps(struct usbnet *usbdev)
                 }
         }
 
+        /* get device 802.11 capabilities, number of PMKIDs */
+        caps = (struct ndis_80211_capability *)caps_buf;
+        len = sizeof(caps_buf);
+        retval = rndis_query_oid(usbdev, OID_802_11_CAPABILITY, caps, &len);
+        if (retval >= 0) {
+                netdev_dbg(usbdev->net, "OID_802_11_CAPABILITY -> len %d, "
+                                "ver %d, pmkids %d, auth-encr-pairs %d\n",
+                                le32_to_cpu(caps->length),
+                                le32_to_cpu(caps->version),
+                                le32_to_cpu(caps->num_pmkids),
+                                le32_to_cpu(caps->num_auth_encr_pair));
+                wiphy->max_num_pmkids = le32_to_cpu(caps->num_pmkids);
+        } else
+                wiphy->max_num_pmkids = 0;
+
         return retval;
 }
 
@@ -2802,7 +3129,7 @@ static int rndis_wlan_bind(struct usbnet *usbdev, struct usb_interface *intf)
         wiphy->max_scan_ssids = 1;
 
         /* TODO: fill-out band/encr information based on priv->caps */
-        rndis_wlan_get_caps(usbdev);
+        rndis_wlan_get_caps(usbdev, wiphy);
 
         memcpy(priv->channels, rndis_channels, sizeof(rndis_channels));
         memcpy(priv->rates, rndis_rates, sizeof(rndis_rates));
@@ -2862,9 +3189,6 @@ static void rndis_wlan_unbind(struct usbnet *usbdev, struct usb_interface *intf)
         flush_workqueue(priv->workqueue);
         destroy_workqueue(priv->workqueue);
 
-        if (priv && priv->wpa_ie_len)
-                kfree(priv->wpa_ie);
-
         rndis_unbind(usbdev, intf);
 
         wiphy_unregister(priv->wdev.wiphy);