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-rw-r--r--net/wireless/util.c190
1 files changed, 185 insertions, 5 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 25550692dda6..3fc2df86278f 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -141,9 +141,12 @@ void ieee80211_set_bitrate_flags(struct wiphy *wiphy)
set_mandatory_flags_band(wiphy->bands[band], band);
}
-int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
+int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
+ struct key_params *params, int key_idx,
const u8 *mac_addr)
{
+ int i;
+
if (key_idx > 5)
return -EINVAL;
@@ -197,6 +200,12 @@ int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
}
}
+ for (i = 0; i < rdev->wiphy.n_cipher_suites; i++)
+ if (params->cipher == rdev->wiphy.cipher_suites[i])
+ break;
+ if (i == rdev->wiphy.n_cipher_suites)
+ return -EINVAL;
+
return 0;
}
@@ -265,11 +274,11 @@ static int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
switch (ae) {
case 0:
return 6;
- case 1:
+ case MESH_FLAGS_AE_A4:
return 12;
- case 2:
+ case MESH_FLAGS_AE_A5_A6:
return 18;
- case 3:
+ case (MESH_FLAGS_AE_A4 | MESH_FLAGS_AE_A5_A6):
return 24;
default:
return 6;
@@ -324,10 +333,18 @@ int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
}
break;
case cpu_to_le16(IEEE80211_FCTL_FROMDS):
- if (iftype != NL80211_IFTYPE_STATION ||
+ if ((iftype != NL80211_IFTYPE_STATION &&
+ iftype != NL80211_IFTYPE_MESH_POINT) ||
(is_multicast_ether_addr(dst) &&
!compare_ether_addr(src, addr)))
return -1;
+ if (iftype == NL80211_IFTYPE_MESH_POINT) {
+ struct ieee80211s_hdr *meshdr =
+ (struct ieee80211s_hdr *) (skb->data + hdrlen);
+ hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
+ if (meshdr->flags & MESH_FLAGS_AE_A4)
+ memcpy(src, meshdr->eaddr1, ETH_ALEN);
+ }
break;
case cpu_to_le16(0):
if (iftype != NL80211_IFTYPE_ADHOC)
@@ -502,3 +519,166 @@ unsigned int cfg80211_classify8021d(struct sk_buff *skb)
return dscp >> 5;
}
EXPORT_SYMBOL(cfg80211_classify8021d);
+
+const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie)
+{
+ u8 *end, *pos;
+
+ pos = bss->information_elements;
+ if (pos == NULL)
+ return NULL;
+ end = pos + bss->len_information_elements;
+
+ while (pos + 1 < end) {
+ if (pos + 2 + pos[1] > end)
+ break;
+ if (pos[0] == ie)
+ return pos;
+ pos += 2 + pos[1];
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(ieee80211_bss_get_ie);
+
+void cfg80211_upload_connect_keys(struct wireless_dev *wdev)
+{
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ struct net_device *dev = wdev->netdev;
+ int i;
+
+ if (!wdev->connect_keys)
+ return;
+
+ for (i = 0; i < 6; i++) {
+ if (!wdev->connect_keys->params[i].cipher)
+ continue;
+ if (rdev->ops->add_key(wdev->wiphy, dev, i, NULL,
+ &wdev->connect_keys->params[i])) {
+ printk(KERN_ERR "%s: failed to set key %d\n",
+ dev->name, i);
+ continue;
+ }
+ if (wdev->connect_keys->def == i)
+ if (rdev->ops->set_default_key(wdev->wiphy, dev, i)) {
+ printk(KERN_ERR "%s: failed to set defkey %d\n",
+ dev->name, i);
+ continue;
+ }
+ if (wdev->connect_keys->defmgmt == i)
+ if (rdev->ops->set_default_mgmt_key(wdev->wiphy, dev, i))
+ printk(KERN_ERR "%s: failed to set mgtdef %d\n",
+ dev->name, i);
+ }
+
+ kfree(wdev->connect_keys);
+ wdev->connect_keys = NULL;
+}
+
+static void cfg80211_process_wdev_events(struct wireless_dev *wdev)
+{
+ struct cfg80211_event *ev;
+ unsigned long flags;
+ const u8 *bssid = NULL;
+
+ spin_lock_irqsave(&wdev->event_lock, flags);
+ while (!list_empty(&wdev->event_list)) {
+ ev = list_first_entry(&wdev->event_list,
+ struct cfg80211_event, list);
+ list_del(&ev->list);
+ spin_unlock_irqrestore(&wdev->event_lock, flags);
+
+ wdev_lock(wdev);
+ switch (ev->type) {
+ case EVENT_CONNECT_RESULT:
+ if (!is_zero_ether_addr(ev->cr.bssid))
+ bssid = ev->cr.bssid;
+ __cfg80211_connect_result(
+ wdev->netdev, bssid,
+ ev->cr.req_ie, ev->cr.req_ie_len,
+ ev->cr.resp_ie, ev->cr.resp_ie_len,
+ ev->cr.status,
+ ev->cr.status == WLAN_STATUS_SUCCESS,
+ NULL);
+ break;
+ case EVENT_ROAMED:
+ __cfg80211_roamed(wdev, ev->rm.bssid,
+ ev->rm.req_ie, ev->rm.req_ie_len,
+ ev->rm.resp_ie, ev->rm.resp_ie_len);
+ break;
+ case EVENT_DISCONNECTED:
+ __cfg80211_disconnected(wdev->netdev,
+ ev->dc.ie, ev->dc.ie_len,
+ ev->dc.reason, true);
+ break;
+ case EVENT_IBSS_JOINED:
+ __cfg80211_ibss_joined(wdev->netdev, ev->ij.bssid);
+ break;
+ }
+ wdev_unlock(wdev);
+
+ kfree(ev);
+
+ spin_lock_irqsave(&wdev->event_lock, flags);
+ }
+ spin_unlock_irqrestore(&wdev->event_lock, flags);
+}
+
+void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev)
+{
+ struct wireless_dev *wdev;
+
+ ASSERT_RTNL();
+ ASSERT_RDEV_LOCK(rdev);
+
+ mutex_lock(&rdev->devlist_mtx);
+
+ list_for_each_entry(wdev, &rdev->netdev_list, list)
+ cfg80211_process_wdev_events(wdev);
+
+ mutex_unlock(&rdev->devlist_mtx);
+}
+
+int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, enum nl80211_iftype ntype,
+ u32 *flags, struct vif_params *params)
+{
+ int err;
+ enum nl80211_iftype otype = dev->ieee80211_ptr->iftype;
+
+ ASSERT_RDEV_LOCK(rdev);
+
+ /* don't support changing VLANs, you just re-create them */
+ if (otype == NL80211_IFTYPE_AP_VLAN)
+ return -EOPNOTSUPP;
+
+ if (!rdev->ops->change_virtual_intf ||
+ !(rdev->wiphy.interface_modes & (1 << ntype)))
+ return -EOPNOTSUPP;
+
+ if (ntype != otype) {
+ switch (otype) {
+ case NL80211_IFTYPE_ADHOC:
+ cfg80211_leave_ibss(rdev, dev, false);
+ break;
+ case NL80211_IFTYPE_STATION:
+ cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, true);
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ /* mesh should be handled? */
+ break;
+ default:
+ break;
+ }
+
+ cfg80211_process_rdev_events(rdev);
+ }
+
+ err = rdev->ops->change_virtual_intf(&rdev->wiphy, dev,
+ ntype, flags, params);
+
+ WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype);
+
+ return err;
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.