hostapd: add support for issuing 802.11k beacon measurement requests via ubus
authorFelix Fietkau <nbd@nbd.name>
Sat, 10 Feb 2018 23:28:03 +0000 (00:28 +0100)
committerFelix Fietkau <nbd@nbd.name>
Wed, 21 Feb 2018 18:29:04 +0000 (19:29 +0100)
Signed-off-by: Felix Fietkau <nbd@nbd.name>
package/network/services/hostapd/src/src/ap/ubus.c

index 2f92b78..5c737f2 100644 (file)
@@ -18,6 +18,7 @@
 #include "ubus.h"
 #include "ap_drv_ops.h"
 #include "beacon.h"
+#include "rrm.h"
 
 static struct ubus_context *ctx;
 static struct blob_buf b;
@@ -719,6 +720,94 @@ invalid:
        return 0;
 }
 
+enum {
+       BEACON_REQ_ADDR,
+       BEACON_REQ_MODE,
+       BEACON_REQ_OP_CLASS,
+       BEACON_REQ_CHANNEL,
+       BEACON_REQ_DURATION,
+       BEACON_REQ_BSSID,
+       BEACON_REQ_SSID,
+       __BEACON_REQ_MAX,
+};
+
+static const struct blobmsg_policy beacon_req_policy[__BEACON_REQ_MAX] = {
+       [BEACON_REQ_ADDR] = { "addr", BLOBMSG_TYPE_STRING },
+       [BEACON_REQ_OP_CLASS] { "op_class", BLOBMSG_TYPE_INT32 },
+       [BEACON_REQ_CHANNEL] { "channel", BLOBMSG_TYPE_INT32 },
+       [BEACON_REQ_DURATION] { "duration", BLOBMSG_TYPE_INT32 },
+       [BEACON_REQ_MODE] { "mode", BLOBMSG_TYPE_INT32 },
+       [BEACON_REQ_BSSID] { "bssid", BLOBMSG_TYPE_STRING },
+       [BEACON_REQ_SSID] { "ssid", BLOBMSG_TYPE_STRING },
+};
+
+static int
+hostapd_rrm_beacon_req(struct ubus_context *ctx, struct ubus_object *obj,
+                      struct ubus_request_data *ureq, const char *method,
+                      struct blob_attr *msg)
+{
+       struct hostapd_data *hapd = container_of(obj, struct hostapd_data, ubus.obj);
+       struct blob_attr *tb[__BEACON_REQ_MAX];
+       struct blob_attr *cur;
+       struct wpabuf *req;
+       u8 bssid[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+       u8 addr[ETH_ALEN];
+       int mode, rem, ret;
+       int buf_len = 13;
+
+       blobmsg_parse(beacon_req_policy, __BEACON_REQ_MAX, tb, blob_data(msg), blob_len(msg));
+
+       if (!tb[BEACON_REQ_ADDR] || !tb[BEACON_REQ_MODE] || !tb[BEACON_REQ_DURATION] ||
+           !tb[BEACON_REQ_OP_CLASS] || !tb[BEACON_REQ_CHANNEL])
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       if (tb[BEACON_REQ_SSID])
+               buf_len += blobmsg_data_len(tb[BEACON_REQ_SSID]) + 2 - 1;
+
+       mode = blobmsg_get_u32(tb[BEACON_REQ_MODE]);
+       if (hwaddr_aton(blobmsg_data(tb[BEACON_REQ_ADDR]), addr))
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       if (tb[BEACON_REQ_BSSID] &&
+           hwaddr_aton(blobmsg_data(tb[BEACON_REQ_BSSID]), bssid))
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       req = wpabuf_alloc(buf_len);
+       if (!req)
+               return UBUS_STATUS_UNKNOWN_ERROR;
+
+       /* 1: regulatory class */
+       wpabuf_put_u8(req, blobmsg_get_u32(tb[BEACON_REQ_OP_CLASS]));
+
+       /* 2: channel number */
+       wpabuf_put_u8(req, blobmsg_get_u32(tb[BEACON_REQ_CHANNEL]));
+
+       /* 3-4: randomization interval */
+       wpabuf_put_le16(req, 0);
+
+       /* 5-6: duration */
+       wpabuf_put_le16(req, blobmsg_get_u32(tb[BEACON_REQ_DURATION]));
+
+       /* 7: mode */
+       wpabuf_put_u8(req, blobmsg_get_u32(tb[BEACON_REQ_MODE]));
+
+       /* 8-13: BSSID */
+       wpabuf_put_data(req, bssid, ETH_ALEN);
+
+       if ((cur = tb[BEACON_REQ_SSID]) != NULL) {
+               wpabuf_put_u8(req, WLAN_EID_SSID);
+               wpabuf_put_u8(req, blobmsg_data_len(cur) - 1);
+               wpabuf_put_data(req, blobmsg_data(cur), blobmsg_data_len(cur) - 1);
+       }
+
+       ret = hostapd_send_beacon_req(hapd, addr, 0, req);
+       if (ret < 0)
+               return -ret;
+
+       return 0;
+}
+
+
 static const struct ubus_method bss_methods[] = {
        UBUS_METHOD_NOARG("get_clients", hostapd_bss_get_clients),
        UBUS_METHOD("del_client", hostapd_bss_del_client, del_policy),
@@ -735,6 +824,7 @@ static const struct ubus_method bss_methods[] = {
        UBUS_METHOD_NOARG("rrm_nr_get_own", hostapd_rrm_nr_get_own),
        UBUS_METHOD_NOARG("rrm_nr_list", hostapd_rrm_nr_list),
        UBUS_METHOD("rrm_nr_set", hostapd_rrm_nr_set, nr_set_policy),
+       UBUS_METHOD("rrm_beacon_req", hostapd_rrm_beacon_req, beacon_req_policy),
 };
 
 static struct ubus_object_type bss_object_type =