hostapd: add switch_chan and set_vendor_elements ubus methods

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 45046

package/network/services/hostapd/patches/600-ubus_support.patch

@@ -41,7 +41,7 @@
  		HAPD_IFACE_DISABLED,
 --- /dev/null
 +++ b/src/ap/ubus.c
-@@ -0,0 +1,408 @@
+@@ -0,0 +1,490 @@
 +/*
 + * hostapd / ubus support
 + * Copyright (c) 2013, Felix Fietkau <nbd@openwrt.org>
@@ -63,6 +63,12 @@
 +static struct blob_buf b;
 +static int ctx_ref;
 +
++static inline struct hostapd_data *get_hapd_from_object(struct ubus_object *obj)
++{
++	return container_of(obj, struct hostapd_data, ubus.obj);
++}
++
++
 +struct ubus_banned_client {
 +	struct avl_node avl;
 +	u8 addr[ETH_ALEN];
@@ -337,12 +343,88 @@
 +	return 0;
 +}
 +
++enum {
++	CSA_FREQ,
++	CSA_BCN_COUNT,
++	__CSA_MAX
++};
++
++static const struct blobmsg_policy csa_policy[__CSA_MAX] = {
++	/*
++	 * for now, frequency and beacon count are enough, add more
++	 * parameters on demand
++	 */
++	[CSA_FREQ] = { "freq", BLOBMSG_TYPE_INT32 },
++	[CSA_BCN_COUNT] = { "bcn_count", BLOBMSG_TYPE_INT32 },
++};
++
++static int
++hostapd_switch_chan(struct ubus_context *ctx, struct ubus_object *obj,
++		    struct ubus_request_data *req, const char *method,
++		    struct blob_attr *msg)
++{
++	struct blob_attr *tb[__CSA_MAX];
++	struct hostapd_data *hapd = get_hapd_from_object(obj);
++	struct csa_settings css;
++
++	blobmsg_parse(csa_policy, __CSA_MAX, tb, blob_data(msg), blob_len(msg));
++
++	if (!tb[CSA_FREQ])
++		return UBUS_STATUS_INVALID_ARGUMENT;
++
++	memset(&css, 0, sizeof(css));
++	css.freq_params.freq = blobmsg_get_u32(tb[CSA_FREQ]);
++	if (tb[CSA_BCN_COUNT])
++		css.cs_count = blobmsg_get_u32(tb[CSA_BCN_COUNT]);
++
++	if (hostapd_switch_channel(hapd, &css) != 0)
++		return UBUS_STATUS_NOT_SUPPORTED;
++	return UBUS_STATUS_OK;
++}
++
++enum {
++	VENDOR_ELEMENTS,
++	__VENDOR_ELEMENTS_MAX
++};
++
++static const struct blobmsg_policy ve_policy[__VENDOR_ELEMENTS_MAX] = {
++	/* vendor elements are provided as hex-string */
++	[VENDOR_ELEMENTS] = { "vendor_elements", BLOBMSG_TYPE_STRING },
++};
++
++static int
++hostapd_vendor_elements(struct ubus_context *ctx, struct ubus_object *obj,
++			struct ubus_request_data *req, const char *method,
++			struct blob_attr *msg)
++{
++	struct blob_attr *tb[__VENDOR_ELEMENTS_MAX];
++	struct hostapd_data *hapd = get_hapd_from_object(obj);
++
++	blobmsg_parse(ve_policy, __VENDOR_ELEMENTS_MAX, tb,
++		      blob_data(msg), blob_len(msg));
++
++	if (!tb[VENDOR_ELEMENTS])
++		return UBUS_STATUS_INVALID_ARGUMENT;
++
++	const char *vendor_elements = blobmsg_data(tb[VENDOR_ELEMENTS]);
++	if (hostapd_set_iface(hapd->iconf, hapd->conf, "vendor_elements",
++			      vendor_elements) != 0)
++		return UBUS_STATUS_NOT_SUPPORTED;
++
++	/* update beacons if vendor elements were set successfully */
++	if (ieee802_11_update_beacons(hapd->iface) != 0)
++		return UBUS_STATUS_NOT_SUPPORTED;
++	return UBUS_STATUS_OK;
++}
++
 +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),
 +	UBUS_METHOD_NOARG("list_bans", hostapd_bss_list_bans),
 +	UBUS_METHOD_NOARG("wps_start", hostapd_bss_wps_start),
 +	UBUS_METHOD_NOARG("wps_cancel", hostapd_bss_wps_cancel),
++	UBUS_METHOD("switch_chan", hostapd_switch_chan, csa_policy),
++	UBUS_METHOD("set_vendor_elements", hostapd_vendor_elements, ve_policy),
 +};
 +
 +static struct ubus_object_type bss_object_type =