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-rw-r--r--net/wireless/chan.c3
-rw-r--r--net/wireless/ibss.c24
-rw-r--r--net/wireless/nl80211.c62
-rw-r--r--net/wireless/reg.c14
-rw-r--r--net/wireless/reg.h4
-rw-r--r--net/wireless/sme.c4
-rw-r--r--net/wireless/util.c14
7 files changed, 102 insertions, 23 deletions
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 16f3c3a7b2c1..9b8cc877eb19 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -504,7 +504,8 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
case NL80211_IFTYPE_ADHOC:
if (wdev->current_bss) {
*chan = wdev->current_bss->pub.channel;
- *chanmode = wdev->ibss_fixed
+ *chanmode = (wdev->ibss_fixed &&
+ !wdev->ibss_dfs_possible)
? CHAN_MODE_SHARED
: CHAN_MODE_EXCLUSIVE;
return;
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 403fe29c024d..9d797df56649 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -83,6 +83,8 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
struct cfg80211_cached_keys *connkeys)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct ieee80211_channel *check_chan;
+ u8 radar_detect_width = 0;
int err;
ASSERT_WDEV_LOCK(wdev);
@@ -114,14 +116,28 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
wdev->connect_keys = connkeys;
wdev->ibss_fixed = params->channel_fixed;
+ wdev->ibss_dfs_possible = params->userspace_handles_dfs;
#ifdef CONFIG_CFG80211_WEXT
wdev->wext.ibss.chandef = params->chandef;
#endif
+ check_chan = params->chandef.chan;
+ if (params->userspace_handles_dfs) {
+ /* use channel NULL to check for radar even if the current
+ * channel is not a radar channel - it might decide to change
+ * to DFS channel later.
+ */
+ radar_detect_width = BIT(params->chandef.width);
+ check_chan = NULL;
+ }
+
+ err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
+ check_chan,
+ (params->channel_fixed &&
+ !radar_detect_width)
+ ? CHAN_MODE_SHARED
+ : CHAN_MODE_EXCLUSIVE,
+ radar_detect_width);
- err = cfg80211_can_use_chan(rdev, wdev, params->chandef.chan,
- params->channel_fixed
- ? CHAN_MODE_SHARED
- : CHAN_MODE_EXCLUSIVE);
if (err) {
wdev->connect_keys = NULL;
return err;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index cbbef88a8ebd..a7f4e7902104 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -354,6 +354,9 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
[NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
[NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
+ [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
+ [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
+ [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
};
/* policy for the key attributes */
@@ -3896,9 +3899,45 @@ static int nl80211_parse_sta_wme(struct genl_info *info,
return 0;
}
+static int nl80211_parse_sta_channel_info(struct genl_info *info,
+ struct station_parameters *params)
+{
+ if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
+ params->supported_channels =
+ nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
+ params->supported_channels_len =
+ nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
+ /*
+ * Need to include at least one (first channel, number of
+ * channels) tuple for each subband, and must have proper
+ * tuples for the rest of the data as well.
+ */
+ if (params->supported_channels_len < 2)
+ return -EINVAL;
+ if (params->supported_channels_len % 2)
+ return -EINVAL;
+ }
+
+ if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
+ params->supported_oper_classes =
+ nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
+ params->supported_oper_classes_len =
+ nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
+ /*
+ * The value of the Length field of the Supported Operating
+ * Classes element is between 2 and 253.
+ */
+ if (params->supported_oper_classes_len < 2 ||
+ params->supported_oper_classes_len > 253)
+ return -EINVAL;
+ }
+ return 0;
+}
+
static int nl80211_set_station_tdls(struct genl_info *info,
struct station_parameters *params)
{
+ int err;
/* Dummy STA entry gets updated once the peer capabilities are known */
if (info->attrs[NL80211_ATTR_PEER_AID])
params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
@@ -3909,6 +3948,10 @@ static int nl80211_set_station_tdls(struct genl_info *info,
params->vht_capa =
nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
+ err = nl80211_parse_sta_channel_info(info, params);
+ if (err)
+ return err;
+
return nl80211_parse_sta_wme(info, params);
}
@@ -4089,6 +4132,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
}
+ err = nl80211_parse_sta_channel_info(info, &params);
+ if (err)
+ return err;
+
err = nl80211_parse_sta_wme(info, &params);
if (err)
return err;
@@ -5653,6 +5700,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
break;
case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
break;
default:
return -EOPNOTSUPP;
@@ -5665,9 +5713,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
/* only important for AP, IBSS and mesh create IEs internally */
- if (need_new_beacon &&
- (!info->attrs[NL80211_ATTR_CSA_IES] ||
- !info->attrs[NL80211_ATTR_CSA_C_OFF_BEACON]))
+ if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
return -EINVAL;
params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
@@ -5722,9 +5768,9 @@ skip_beacons:
if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
return -EINVAL;
- /* DFS channels are only supported for AP/P2P GO ... for now. */
if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
- dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO) {
+ dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
+ dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
err = cfg80211_chandef_dfs_required(wdev->wiphy,
&params.chandef);
if (err < 0) {
@@ -6556,6 +6602,9 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
ibss.control_port =
nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
+ ibss.userspace_handles_dfs =
+ nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
+
err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
if (err)
kfree(connkeys);
@@ -10762,7 +10811,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
wdev->iftype != NL80211_IFTYPE_P2P_GO &&
- wdev->iftype != NL80211_IFTYPE_ADHOC))
+ wdev->iftype != NL80211_IFTYPE_ADHOC &&
+ wdev->iftype != NL80211_IFTYPE_MESH_POINT))
goto out;
wdev->channel = chandef->chan;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index a0ec143ba3dc..7da67fd0b418 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -787,7 +787,6 @@ const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
EXPORT_SYMBOL(reg_initiator_name);
#ifdef CONFIG_CFG80211_REG_DEBUG
-
static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
const struct ieee80211_reg_rule *reg_rule)
{
@@ -974,6 +973,13 @@ static bool reg_dev_ignore_cell_hint(struct wiphy *wiphy)
}
#endif
+static bool wiphy_strict_alpha2_regd(struct wiphy *wiphy)
+{
+ if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY &&
+ !(wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY))
+ return true;
+ return false;
+}
static bool ignore_reg_update(struct wiphy *wiphy,
enum nl80211_reg_initiator initiator)
@@ -1000,7 +1006,7 @@ static bool ignore_reg_update(struct wiphy *wiphy,
* wiphy->regd will be set once the device has its own
* desired regulatory domain set
*/
- if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd &&
+ if (wiphy_strict_alpha2_regd(wiphy) && !wiphy->regd &&
initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
!is_world_regdom(lr->alpha2)) {
REG_DBG_PRINT("Ignoring regulatory request set by %s "
@@ -1706,8 +1712,8 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
}
EXPORT_SYMBOL(regulatory_hint);
-void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
- const u8 *country_ie, u8 country_ie_len)
+void regulatory_hint_country_ie(struct wiphy *wiphy, enum ieee80211_band band,
+ const u8 *country_ie, u8 country_ie_len)
{
char alpha2[2];
enum environment_cap env = ENVIRON_ANY;
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index af2d5f8a5d82..9677e3c13da9 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -58,7 +58,7 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy,
gfp_t gfp);
/**
- * regulatory_hint_11d - hints a country IE as a regulatory domain
+ * regulatory_hint_country_ie - hints a country IE as a regulatory domain
* @wiphy: the wireless device giving the hint (used only for reporting
* conflicts)
* @band: the band on which the country IE was received on. This determines
@@ -78,7 +78,7 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy,
* not observed. For this reason if a triplet is seen with channel
* information for a band the BSS is not present in it will be ignored.
*/
-void regulatory_hint_11d(struct wiphy *wiphy,
+void regulatory_hint_country_ie(struct wiphy *wiphy,
enum ieee80211_band band,
const u8 *country_ie,
u8 country_ie_len);
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 20e86a95dc4e..65f800890d70 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -682,8 +682,8 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
* - country_ie + 2, the start of the country ie data, and
* - and country_ie[1] which is the IE length
*/
- regulatory_hint_11d(wdev->wiphy, bss->channel->band,
- country_ie + 2, country_ie[1]);
+ regulatory_hint_country_ie(wdev->wiphy, bss->channel->band,
+ country_ie + 2, country_ie[1]);
kfree(country_ie);
}
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 3c8be6104ba4..935dea9485da 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1249,7 +1249,7 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
enum cfg80211_chan_mode chmode;
int num_different_channels = 0;
int total = 1;
- bool radar_required;
+ bool radar_required = false;
int i, j;
ASSERT_RTNL();
@@ -1264,14 +1264,20 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_WDS:
- radar_required = !!(chan &&
- (chan->flags & IEEE80211_CHAN_RADAR));
+ /* if the interface could potentially choose a DFS channel,
+ * then mark DFS as required.
+ */
+ if (!chan) {
+ if (chanmode != CHAN_MODE_UNDEFINED && radar_detect)
+ radar_required = true;
+ break;
+ }
+ radar_required = !!(chan->flags & IEEE80211_CHAN_RADAR);
break;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_MONITOR:
- radar_required = false;
break;
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_UNSPECIFIED:
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-09 06:30:53 +0000