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Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c79
1 files changed, 72 insertions, 7 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 0a31b1d2845d..80a20d69f285 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -809,6 +809,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_MAX_HW_TIMESTAMP_PEERS] = { .type = NLA_U16 },
[NL80211_ATTR_HW_TIMESTAMP_ENABLED] = { .type = NLA_FLAG },
+ [NL80211_ATTR_EMA_RNR_ELEMS] = { .type = NLA_NESTED },
};
/* policy for the key attributes */
@@ -5425,6 +5426,38 @@ nl80211_parse_mbssid_elems(struct wiphy *wiphy, struct nlattr *attrs)
return elems;
}
+static struct cfg80211_rnr_elems *
+nl80211_parse_rnr_elems(struct wiphy *wiphy, struct nlattr *attrs,
+ struct netlink_ext_ack *extack)
+{
+ struct nlattr *nl_elems;
+ struct cfg80211_rnr_elems *elems;
+ int rem_elems;
+ u8 i = 0, num_elems = 0;
+
+ nla_for_each_nested(nl_elems, attrs, rem_elems) {
+ int ret;
+
+ ret = validate_ie_attr(nl_elems, extack);
+ if (ret)
+ return ERR_PTR(ret);
+
+ num_elems++;
+ }
+
+ elems = kzalloc(struct_size(elems, elem, num_elems), GFP_KERNEL);
+ if (!elems)
+ return ERR_PTR(-ENOMEM);
+
+ nla_for_each_nested(nl_elems, attrs, rem_elems) {
+ elems->elem[i].data = nla_data(nl_elems);
+ elems->elem[i].len = nla_len(nl_elems);
+ i++;
+ }
+ elems->cnt = num_elems;
+ return elems;
+}
+
static int nl80211_parse_he_bss_color(struct nlattr *attrs,
struct cfg80211_he_bss_color *he_bss_color)
{
@@ -5451,7 +5484,8 @@ static int nl80211_parse_he_bss_color(struct nlattr *attrs,
static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev,
struct nlattr *attrs[],
- struct cfg80211_beacon_data *bcn)
+ struct cfg80211_beacon_data *bcn,
+ struct netlink_ext_ack *extack)
{
bool haveinfo = false;
int err;
@@ -5548,6 +5582,21 @@ static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev,
return PTR_ERR(mbssid);
bcn->mbssid_ies = mbssid;
+
+ if (bcn->mbssid_ies && attrs[NL80211_ATTR_EMA_RNR_ELEMS]) {
+ struct cfg80211_rnr_elems *rnr =
+ nl80211_parse_rnr_elems(&rdev->wiphy,
+ attrs[NL80211_ATTR_EMA_RNR_ELEMS],
+ extack);
+
+ if (IS_ERR(rnr))
+ return PTR_ERR(rnr);
+
+ if (rnr && rnr->cnt < bcn->mbssid_ies->cnt)
+ return -EINVAL;
+
+ bcn->rnr_ies = rnr;
+ }
}
return 0;
@@ -5866,7 +5915,8 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
if (!params)
return -ENOMEM;
- err = nl80211_parse_beacon(rdev, info->attrs, &params->beacon);
+ err = nl80211_parse_beacon(rdev, info->attrs, &params->beacon,
+ info->extack);
if (err)
goto out;
@@ -6096,6 +6146,11 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
goto out_unlock;
}
+ if (!params->mbssid_config.ema && params->beacon.rnr_ies) {
+ err = -EINVAL;
+ goto out_unlock;
+ }
+
err = nl80211_calculate_ap_params(params);
if (err)
goto out_unlock;
@@ -6137,6 +6192,7 @@ out:
params->mbssid_config.tx_wdev->netdev &&
params->mbssid_config.tx_wdev->netdev != dev)
dev_put(params->mbssid_config.tx_wdev->netdev);
+ kfree(params->beacon.rnr_ies);
kfree(params);
return err;
@@ -6161,7 +6217,7 @@ static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
if (!wdev->links[link_id].ap.beacon_interval)
return -EINVAL;
- err = nl80211_parse_beacon(rdev, info->attrs, &params);
+ err = nl80211_parse_beacon(rdev, info->attrs, &params, info->extack);
if (err)
goto out;
@@ -6171,6 +6227,7 @@ static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
out:
kfree(params.mbssid_ies);
+ kfree(params.rnr_ies);
return err;
}
@@ -10030,7 +10087,8 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
if (!need_new_beacon)
goto skip_beacons;
- err = nl80211_parse_beacon(rdev, info->attrs, &params.beacon_after);
+ err = nl80211_parse_beacon(rdev, info->attrs, &params.beacon_after,
+ info->extack);
if (err)
goto free;
@@ -10047,7 +10105,8 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
if (err)
goto free;
- err = nl80211_parse_beacon(rdev, csa_attrs, &params.beacon_csa);
+ err = nl80211_parse_beacon(rdev, csa_attrs, &params.beacon_csa,
+ info->extack);
if (err)
goto free;
@@ -10167,6 +10226,8 @@ skip_beacons:
free:
kfree(params.beacon_after.mbssid_ies);
kfree(params.beacon_csa.mbssid_ies);
+ kfree(params.beacon_after.rnr_ies);
+ kfree(params.beacon_csa.rnr_ies);
kfree(csa_attrs);
return err;
}
@@ -15882,7 +15943,8 @@ static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
params.count = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT]);
params.color = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR]);
- err = nl80211_parse_beacon(rdev, info->attrs, &params.beacon_next);
+ err = nl80211_parse_beacon(rdev, info->attrs, &params.beacon_next,
+ info->extack);
if (err)
return err;
@@ -15896,7 +15958,8 @@ static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out;
- err = nl80211_parse_beacon(rdev, tb, &params.beacon_color_change);
+ err = nl80211_parse_beacon(rdev, tb, &params.beacon_color_change,
+ info->extack);
if (err)
goto out;
@@ -15952,6 +16015,8 @@ static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
out:
kfree(params.beacon_next.mbssid_ies);
kfree(params.beacon_color_change.mbssid_ies);
+ kfree(params.beacon_next.rnr_ies);
+ kfree(params.beacon_color_change.rnr_ies);
kfree(tb);
return err;
}
generated by cgit (git 2.34.1) at 2025-03-31 10:36:39 +0000