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authorFelix Fietkau <nbd@nbd.name>2017-07-04 14:45:10 +0200
committerFelix Fietkau <nbd@nbd.name>2017-09-28 22:46:26 +0200
commit79216243d75ddfeab9c71eac9059b302bc7f6d8b (patch)
treeb5f67deac214d69e1edc6a5d339988703ea51c19 /package
parent9f5f5d250e7537f15fd668fa737ead719f910245 (diff)
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hostapd: add support for accessing 802.11k neighbor report elements via ubus
This API can be used to distribute neighbor report entries across multiple APs on the same LAN. Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'package')
-rw-r--r--package/network/services/hostapd/src/src/ap/ubus.c169
1 files changed, 169 insertions, 0 deletions
diff --git a/package/network/services/hostapd/src/src/ap/ubus.c b/package/network/services/hostapd/src/src/ap/ubus.c
index 715c456049..bc773930d4 100644
--- a/package/network/services/hostapd/src/src/ap/ubus.c
+++ b/package/network/services/hostapd/src/src/ap/ubus.c
@@ -9,8 +9,10 @@
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
+#include "utils/wpabuf.h"
#include "common/ieee802_11_defs.h"
#include "hostapd.h"
+#include "neighbor_db.h"
#include "wps_hostapd.h"
#include "sta_info.h"
#include "ubus.h"
@@ -447,6 +449,170 @@ hostapd_vendor_elements(struct ubus_context *ctx, struct ubus_object *obj,
return UBUS_STATUS_OK;
}
+static void
+hostapd_rrm_print_nr(struct hostapd_neighbor_entry *nr)
+{
+ const u8 *data;
+ char *str;
+ int len;
+
+ blobmsg_printf(&b, "", MACSTR, MAC2STR(nr->bssid));
+
+ str = blobmsg_alloc_string_buffer(&b, "", nr->ssid.ssid_len + 1);
+ memcpy(str, nr->ssid.ssid, nr->ssid.ssid_len);
+ str[nr->ssid.ssid_len] = 0;
+ blobmsg_add_string_buffer(&b);
+
+ len = wpabuf_len(nr->nr);
+ str = blobmsg_alloc_string_buffer(&b, "", 2 * len + 1);
+ wpa_snprintf_hex(str, 2 * len + 1, wpabuf_head_u8(nr->nr), len);
+ blobmsg_add_string_buffer(&b);
+}
+
+static int
+hostapd_rrm_nr_get_own(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct hostapd_data *hapd = get_hapd_from_object(obj);
+ struct hostapd_neighbor_entry *nr;
+ void *c;
+
+ if (!(hapd->conf->radio_measurements[0] & WLAN_RRM_CAPS_NEIGHBOR_REPORT))
+ return UBUS_STATUS_NOT_SUPPORTED;
+
+ nr = hostapd_neighbor_get(hapd, hapd->own_addr, NULL);
+ if (!nr)
+ return UBUS_STATUS_NOT_FOUND;
+
+ blob_buf_init(&b, 0);
+
+ c = blobmsg_open_array(&b, "value");
+ hostapd_rrm_print_nr(nr);
+ blobmsg_close_array(&b, c);
+
+ ubus_send_reply(ctx, req, b.head);
+
+ return 0;
+}
+
+static int
+hostapd_rrm_nr_list(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct hostapd_data *hapd = get_hapd_from_object(obj);
+ struct hostapd_neighbor_entry *nr;
+ void *c;
+
+ if (!(hapd->conf->radio_measurements[0] & WLAN_RRM_CAPS_NEIGHBOR_REPORT))
+ return UBUS_STATUS_NOT_SUPPORTED;
+
+ blob_buf_init(&b, 0);
+
+ c = blobmsg_open_array(&b, "list");
+ dl_list_for_each(nr, &hapd->nr_db, struct hostapd_neighbor_entry, list) {
+ void *cur;
+
+ if (!memcmp(nr->bssid, hapd->own_addr, ETH_ALEN))
+ continue;
+
+ cur = blobmsg_open_array(&b, NULL);
+ hostapd_rrm_print_nr(nr);
+ blobmsg_close_array(&b, cur);
+ }
+ blobmsg_close_array(&b, c);
+
+ ubus_send_reply(ctx, req, b.head);
+
+ return 0;
+}
+
+enum {
+ NR_SET_LIST,
+ __NR_SET_LIST_MAX
+};
+
+static const struct blobmsg_policy nr_set_policy[__NR_SET_LIST_MAX] = {
+ [NR_SET_LIST] = { "list", BLOBMSG_TYPE_ARRAY },
+};
+
+
+static void
+hostapd_rrm_nr_clear(struct hostapd_data *hapd)
+{
+ struct hostapd_neighbor_entry *nr;
+
+restart:
+ dl_list_for_each(nr, &hapd->nr_db, struct hostapd_neighbor_entry, list) {
+ if (!memcmp(nr->bssid, hapd->own_addr, ETH_ALEN))
+ continue;
+
+ hostapd_neighbor_remove(hapd, nr->bssid, &nr->ssid);
+ goto restart;
+ }
+}
+
+static int
+hostapd_rrm_nr_set(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ static const struct blobmsg_policy nr_e_policy[] = {
+ { .type = BLOBMSG_TYPE_STRING },
+ { .type = BLOBMSG_TYPE_STRING },
+ { .type = BLOBMSG_TYPE_STRING },
+ };
+ struct hostapd_data *hapd = get_hapd_from_object(obj);
+ struct blob_attr *tb_l[__NR_SET_LIST_MAX];
+ struct blob_attr *tb[ARRAY_SIZE(nr_e_policy)];
+ struct blob_attr *cur;
+ int ret = 0;
+ int rem;
+
+ if (!(hapd->conf->radio_measurements[0] & WLAN_RRM_CAPS_NEIGHBOR_REPORT))
+ return UBUS_STATUS_NOT_SUPPORTED;
+
+ blobmsg_parse(nr_set_policy, __NR_SET_LIST_MAX, tb_l, blob_data(msg), blob_len(msg));
+ if (!tb_l[NR_SET_LIST])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ hostapd_rrm_nr_clear(hapd);
+ blobmsg_for_each_attr(cur, tb_l[NR_SET_LIST], rem) {
+ struct wpa_ssid_value ssid;
+ struct wpabuf *data;
+ u8 bssid[ETH_ALEN];
+ char *s;
+
+ blobmsg_parse_array(nr_e_policy, ARRAY_SIZE(nr_e_policy), tb, blobmsg_data(cur), blobmsg_data_len(cur));
+ if (!tb[0] || !tb[1] || !tb[2])
+ goto invalid;
+
+ s = blobmsg_get_string(tb[0]);
+ if (hwaddr_aton(s, bssid))
+ goto invalid;
+
+ s = blobmsg_get_string(tb[1]);
+ ssid.ssid_len = strlen(s);
+ if (ssid.ssid_len > sizeof(ssid.ssid))
+ goto invalid;
+
+ memcpy(&ssid, s, ssid.ssid_len);
+ data = wpabuf_parse_bin(blobmsg_get_string(tb[2]));
+ if (!data)
+ goto invalid;
+
+ hostapd_neighbor_set(hapd, bssid, &ssid, data, NULL, NULL, 0);
+ wpabuf_free(data);
+ continue;
+
+invalid:
+ ret = UBUS_STATUS_INVALID_ARGUMENT;
+ }
+
+ 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),
@@ -459,6 +625,9 @@ static const struct ubus_method bss_methods[] = {
#endif
UBUS_METHOD("set_vendor_elements", hostapd_vendor_elements, ve_policy),
UBUS_METHOD("notify_response", hostapd_notify_response, notify_policy),
+ 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),
};
static struct ubus_object_type bss_object_type =