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@@ -96,6 +96,7 @@ struct wpa_driver_nl80211_data {
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int monitor_sock;
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int monitor_ifidx;
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int probe_req_report;
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+ int disable_11b_rates;
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unsigned int beacon_set:1;
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unsigned int pending_remain_on_chan:1;
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@@ -140,6 +141,8 @@ static int wpa_driver_nl80211_if_remove(void *priv,
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static void wpa_driver_nl80211_probe_req_report_timeout(void *eloop_ctx,
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void *timeout_ctx);
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+static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
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+ int ifindex, int disabled);
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/* nl80211 code */
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@@ -1293,6 +1296,9 @@ static void wpa_driver_nl80211_deinit(void *priv)
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wpa_driver_nl80211_free_bss(drv);
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#endif /* HOSTAPD */
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+ if (drv->disable_11b_rates)
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+ nl80211_disable_11b_rates(drv, drv->ifindex, 0);
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+
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netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
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netlink_deinit(drv->netlink);
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@@ -2680,6 +2686,9 @@ static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
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wds);
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}
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+ if (ret >= 0 && drv->disable_11b_rates)
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+ nl80211_disable_11b_rates(drv, ret, 1);
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+
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return ret;
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}
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@@ -4564,6 +4573,62 @@ static void wpa_driver_nl80211_release_interface_addr(void *priv,
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}
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+static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
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+ int ifindex, int disabled)
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+{
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+ struct nl_msg *msg;
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+ struct nlattr *bands, *band;
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+ int ret;
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+
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+ msg = nlmsg_alloc();
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+ if (!msg)
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+ return -1;
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+
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+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
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+ NL80211_CMD_SET_TX_BITRATE_MASK, 0);
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+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
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+
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+ bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
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+ if (!bands)
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+ goto nla_put_failure;
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+
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+ /*
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+ * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
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+ * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
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+ * rates. All 5 GHz rates are left enabled.
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+ */
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+ band = nla_nest_start(msg, NL80211_BAND_2GHZ);
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+ if (!band)
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+ goto nla_put_failure;
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+ NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
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+ "\x0c\x12\x18\x24\x30\x48\x60\x6c");
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+ nla_nest_end(msg, band);
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+
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+ nla_nest_end(msg, bands);
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+
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+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
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+ msg = NULL;
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+ if (ret) {
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+ wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
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+ "(%s)", ret, strerror(-ret));
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+ }
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+
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+ return ret;
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+
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+nla_put_failure:
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+ nlmsg_free(msg);
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+ return -1;
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+}
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+
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+
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+static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
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+{
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+ struct wpa_driver_nl80211_data *drv = priv;
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+ drv->disable_11b_rates = disabled;
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+ return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
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+}
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+
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+
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const struct wpa_driver_ops wpa_driver_nl80211_ops = {
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.name = "nl80211",
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.desc = "Linux nl80211/cfg80211",
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@@ -4618,4 +4683,5 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
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.probe_req_report = wpa_driver_nl80211_probe_req_report,
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.alloc_interface_addr = wpa_driver_nl80211_alloc_interface_addr,
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.release_interface_addr = wpa_driver_nl80211_release_interface_addr,
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+ .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
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};
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