network/services/hostapd: move whole files outside of patches and drop Build/Prepare rule in favor of default one

This more of a demo for the previous commit that comes with
this one, where I added support for copying source from 'src' to
the build dir(s).

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

3 files changed, 631 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
new file mode 100644
index 0000000000..c24f63fd8b
--- /dev/null
+++ b/package/network/services/hostapd/src/src/ap/ubus.c
@@ -0,0 +1,536 @@
+/*
+ * hostapd / ubus support
+ * Copyright (c) 2013, Felix Fietkau <nbd@nbd.name>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+#include "utils/common.h"
+#include "utils/eloop.h"
+#include "common/ieee802_11_defs.h"
+#include "hostapd.h"
+#include "wps_hostapd.h"
+#include "sta_info.h"
+#include "ubus.h"
+#include "ap_drv_ops.h"
+#include "beacon.h"
+
+static struct ubus_context *ctx;
+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];
+};
+
+static void ubus_receive(int sock, void *eloop_ctx, void *sock_ctx)
+{
+	struct ubus_context *ctx = eloop_ctx;
+	ubus_handle_event(ctx);
+}
+
+static void ubus_reconnect_timeout(void *eloop_data, void *user_ctx)
+{
+	if (ubus_reconnect(ctx, NULL)) {
+		eloop_register_timeout(1, 0, ubus_reconnect_timeout, ctx, NULL);
+		return;
+	}
+
+	eloop_register_read_sock(ctx->sock.fd, ubus_receive, ctx, NULL);
+}
+
+static void hostapd_ubus_connection_lost(struct ubus_context *ctx)
+{
+	eloop_unregister_read_sock(ctx->sock.fd);
+	eloop_register_timeout(1, 0, ubus_reconnect_timeout, ctx, NULL);
+}
+
+static bool hostapd_ubus_init(void)
+{
+	if (ctx)
+		return true;
+
+	ctx = ubus_connect(NULL);
+	if (!ctx)
+		return false;
+
+	ctx->connection_lost = hostapd_ubus_connection_lost;
+	eloop_register_read_sock(ctx->sock.fd, ubus_receive, ctx, NULL);
+	return true;
+}
+
+static void hostapd_ubus_ref_inc(void)
+{
+	ctx_ref++;
+}
+
+static void hostapd_ubus_ref_dec(void)
+{
+	ctx_ref--;
+	if (!ctx)
+		return;
+
+	if (ctx_ref)
+		return;
+
+	eloop_unregister_read_sock(ctx->sock.fd);
+	ubus_free(ctx);
+	ctx = NULL;
+}
+
+void hostapd_ubus_add_iface(struct hostapd_iface *iface)
+{
+	if (!hostapd_ubus_init())
+		return;
+}
+
+void hostapd_ubus_free_iface(struct hostapd_iface *iface)
+{
+	if (!ctx)
+		return;
+}
+
+static void
+hostapd_bss_del_ban(void *eloop_data, void *user_ctx)
+{
+	struct ubus_banned_client *ban = eloop_data;
+	struct hostapd_data *hapd = user_ctx;
+
+	avl_delete(&hapd->ubus.banned, &ban->avl);
+	free(ban);
+}
+
+static void
+hostapd_bss_ban_client(struct hostapd_data *hapd, u8 *addr, int time)
+{
+	struct ubus_banned_client *ban;
+
+	if (time < 0)
+		time = 0;
+
+	ban = avl_find_element(&hapd->ubus.banned, addr, ban, avl);
+	if (!ban) {
+		if (!time)
+			return;
+
+		ban = os_zalloc(sizeof(*ban));
+		memcpy(ban->addr, addr, sizeof(ban->addr));
+		ban->avl.key = ban->addr;
+		avl_insert(&hapd->ubus.banned, &ban->avl);
+	} else {
+		eloop_cancel_timeout(hostapd_bss_del_ban, ban, hapd);
+		if (!time) {
+			hostapd_bss_del_ban(ban, hapd);
+			return;
+		}
+	}
+
+	eloop_register_timeout(0, time * 1000, hostapd_bss_del_ban, ban, hapd);
+}
+
+static int
+hostapd_bss_get_clients(struct ubus_context *ctx, struct ubus_object *obj,
+			struct ubus_request_data *req, const char *method,
+			struct blob_attr *msg)
+{
+	struct hostapd_data *hapd = container_of(obj, struct hostapd_data, ubus.obj);
+	struct sta_info *sta;
+	void *list, *c;
+	char mac_buf[20];
+	static const struct {
+		const char *name;
+		uint32_t flag;
+	} sta_flags[] = {
+		{ "auth", WLAN_STA_AUTH },
+		{ "assoc", WLAN_STA_ASSOC },
+		{ "authorized", WLAN_STA_AUTHORIZED },
+		{ "preauth", WLAN_STA_PREAUTH },
+		{ "wds", WLAN_STA_WDS },
+		{ "wmm", WLAN_STA_WMM },
+		{ "ht", WLAN_STA_HT },
+		{ "vht", WLAN_STA_VHT },
+		{ "wps", WLAN_STA_WPS },
+		{ "mfp", WLAN_STA_MFP },
+	};
+
+	blob_buf_init(&b, 0);
+	blobmsg_add_u32(&b, "freq", hapd->iface->freq);
+	list = blobmsg_open_table(&b, "clients");
+	for (sta = hapd->sta_list; sta; sta = sta->next) {
+		int i;
+
+		sprintf(mac_buf, MACSTR, MAC2STR(sta->addr));
+		c = blobmsg_open_table(&b, mac_buf);
+		for (i = 0; i < ARRAY_SIZE(sta_flags); i++)
+			blobmsg_add_u8(&b, sta_flags[i].name,
+				       !!(sta->flags & sta_flags[i].flag));
+		blobmsg_add_u32(&b, "aid", sta->aid);
+		blobmsg_close_table(&b, c);
+	}
+	blobmsg_close_array(&b, list);
+	ubus_send_reply(ctx, req, b.head);
+
+	return 0;
+}
+
+enum {
+	DEL_CLIENT_ADDR,
+	DEL_CLIENT_REASON,
+	DEL_CLIENT_DEAUTH,
+	DEL_CLIENT_BAN_TIME,
+	__DEL_CLIENT_MAX
+};
+
+static const struct blobmsg_policy del_policy[__DEL_CLIENT_MAX] = {
+	[DEL_CLIENT_ADDR] = { "addr", BLOBMSG_TYPE_STRING },
+	[DEL_CLIENT_REASON] = { "reason", BLOBMSG_TYPE_INT32 },
+	[DEL_CLIENT_DEAUTH] = { "deauth", BLOBMSG_TYPE_INT8 },
+	[DEL_CLIENT_BAN_TIME] = { "ban_time", BLOBMSG_TYPE_INT32 },
+};
+
+static int
+hostapd_bss_del_client(struct ubus_context *ctx, struct ubus_object *obj,
+			struct ubus_request_data *req, const char *method,
+			struct blob_attr *msg)
+{
+	struct blob_attr *tb[__DEL_CLIENT_MAX];
+	struct hostapd_data *hapd = container_of(obj, struct hostapd_data, ubus.obj);
+	struct sta_info *sta;
+	bool deauth = false;
+	int reason;
+	u8 addr[ETH_ALEN];
+
+	blobmsg_parse(del_policy, __DEL_CLIENT_MAX, tb, blob_data(msg), blob_len(msg));
+
+	if (!tb[DEL_CLIENT_ADDR])
+		return UBUS_STATUS_INVALID_ARGUMENT;
+
+	if (hwaddr_aton(blobmsg_data(tb[DEL_CLIENT_ADDR]), addr))
+		return UBUS_STATUS_INVALID_ARGUMENT;
+
+	if (tb[DEL_CLIENT_REASON])
+		reason = blobmsg_get_u32(tb[DEL_CLIENT_REASON]);
+
+	if (tb[DEL_CLIENT_DEAUTH])
+		deauth = blobmsg_get_bool(tb[DEL_CLIENT_DEAUTH]);
+
+	sta = ap_get_sta(hapd, addr);
+	if (sta) {
+		if (deauth) {
+			hostapd_drv_sta_deauth(hapd, addr, reason);
+			ap_sta_deauthenticate(hapd, sta, reason);
+		} else {
+			hostapd_drv_sta_disassoc(hapd, addr, reason);
+			ap_sta_disassociate(hapd, sta, reason);
+		}
+	}
+
+	if (tb[DEL_CLIENT_BAN_TIME])
+		hostapd_bss_ban_client(hapd, addr, blobmsg_get_u32(tb[DEL_CLIENT_BAN_TIME]));
+
+	return 0;
+}
+
+static void
+blobmsg_add_macaddr(struct blob_buf *buf, const char *name, const u8 *addr)
+{
+	char *s;
+
+	s = blobmsg_alloc_string_buffer(buf, name, 20);
+	sprintf(s, MACSTR, MAC2STR(addr));
+	blobmsg_add_string_buffer(buf);
+}
+
+static int
+hostapd_bss_list_bans(struct ubus_context *ctx, struct ubus_object *obj,
+		      struct ubus_request_data *req, const char *method,
+		      struct blob_attr *msg)
+{
+	struct hostapd_data *hapd = container_of(obj, struct hostapd_data, ubus.obj);
+	struct ubus_banned_client *ban;
+	void *c;
+
+	blob_buf_init(&b, 0);
+	c = blobmsg_open_array(&b, "clients");
+	avl_for_each_element(&hapd->ubus.banned, ban, avl)
+		blobmsg_add_macaddr(&b, NULL, ban->addr);
+	blobmsg_close_array(&b, c);
+	ubus_send_reply(ctx, req, b.head);
+
+	return 0;
+}
+
+static int
+hostapd_bss_wps_start(struct ubus_context *ctx, struct ubus_object *obj,
+			struct ubus_request_data *req, const char *method,
+			struct blob_attr *msg)
+{
+	int rc;
+	struct hostapd_data *hapd = container_of(obj, struct hostapd_data, ubus.obj);
+
+	rc = hostapd_wps_button_pushed(hapd, NULL);
+
+	if (rc != 0)
+		return UBUS_STATUS_NOT_SUPPORTED;
+
+	return 0;
+}
+
+static int
+hostapd_bss_wps_cancel(struct ubus_context *ctx, struct ubus_object *obj,
+			struct ubus_request_data *req, const char *method,
+			struct blob_attr *msg)
+{
+	int rc;
+	struct hostapd_data *hapd = container_of(obj, struct hostapd_data, ubus.obj);
+
+	rc = hostapd_wps_cancel(hapd);
+
+	if (rc != 0)
+		return UBUS_STATUS_NOT_SUPPORTED;
+
+	return 0;
+}
+
+static int
+hostapd_bss_update_beacon(struct ubus_context *ctx, struct ubus_object *obj,
+			struct ubus_request_data *req, const char *method,
+			struct blob_attr *msg)
+{
+	int rc;
+	struct hostapd_data *hapd = container_of(obj, struct hostapd_data, ubus.obj);
+
+	rc = ieee802_11_set_beacon(hapd);
+
+	if (rc != 0)
+		return UBUS_STATUS_NOT_SUPPORTED;
+
+	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 },
+};
+
+#ifdef NEED_AP_MLME
+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;
+}
+#endif
+
+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);
+	struct hostapd_bss_config *bss = hapd->conf;
+	struct wpabuf *elems;
+	const char *pos;
+	size_t len;
+
+	blobmsg_parse(ve_policy, __VENDOR_ELEMENTS_MAX, tb,
+		      blob_data(msg), blob_len(msg));
+
+	if (!tb[VENDOR_ELEMENTS])
+		return UBUS_STATUS_INVALID_ARGUMENT;
+
+	pos = blobmsg_data(tb[VENDOR_ELEMENTS]);
+	len = os_strlen(pos);
+	if (len & 0x01)
+			return UBUS_STATUS_INVALID_ARGUMENT;
+
+	len /= 2;
+	if (len == 0) {
+		wpabuf_free(bss->vendor_elements);
+		bss->vendor_elements = NULL;
+		return 0;
+	}
+
+	elems = wpabuf_alloc(len);
+	if (elems == NULL)
+		return 1;
+
+	if (hexstr2bin(pos, wpabuf_put(elems, len), len)) {
+		wpabuf_free(elems);
+		return UBUS_STATUS_INVALID_ARGUMENT;
+	}
+
+	wpabuf_free(bss->vendor_elements);
+	bss->vendor_elements = elems;
+
+	/* 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_NOARG("update_beacon", hostapd_bss_update_beacon),
+#ifdef NEED_AP_MLME
+	UBUS_METHOD("switch_chan", hostapd_switch_chan, csa_policy),
+#endif
+	UBUS_METHOD("set_vendor_elements", hostapd_vendor_elements, ve_policy),
+};
+
+static struct ubus_object_type bss_object_type =
+	UBUS_OBJECT_TYPE("hostapd_bss", bss_methods);
+
+static int avl_compare_macaddr(const void *k1, const void *k2, void *ptr)
+{
+	return memcmp(k1, k2, ETH_ALEN);
+}
+
+void hostapd_ubus_add_bss(struct hostapd_data *hapd)
+{
+	struct ubus_object *obj = &hapd->ubus.obj;
+	char *name;
+	int ret;
+
+	if (!hostapd_ubus_init())
+		return;
+
+	if (asprintf(&name, "hostapd.%s", hapd->conf->iface) < 0)
+		return;
+
+	avl_init(&hapd->ubus.banned, avl_compare_macaddr, false, NULL);
+	obj->name = name;
+	obj->type = &bss_object_type;
+	obj->methods = bss_object_type.methods;
+	obj->n_methods = bss_object_type.n_methods;
+	ret = ubus_add_object(ctx, obj);
+	hostapd_ubus_ref_inc();
+}
+
+void hostapd_ubus_free_bss(struct hostapd_data *hapd)
+{
+	struct ubus_object *obj = &hapd->ubus.obj;
+	char *name = (char *) obj->name;
+
+	if (!ctx)
+		return;
+
+	if (obj->id) {
+		ubus_remove_object(ctx, obj);
+		hostapd_ubus_ref_dec();
+	}
+
+	free(name);
+}
+
+struct ubus_event_req {
+	struct ubus_notify_request nreq;
+	bool deny;
+};
+
+static void
+ubus_event_cb(struct ubus_notify_request *req, int idx, int ret)
+{
+	struct ubus_event_req *ureq = container_of(req, struct ubus_event_req, nreq);
+
+	if (ret)
+		ureq->deny = true;
+}
+
+int hostapd_ubus_handle_event(struct hostapd_data *hapd, struct hostapd_ubus_request *req)
+{
+	struct ubus_banned_client *ban;
+	const char *types[HOSTAPD_UBUS_TYPE_MAX] = {
+		[HOSTAPD_UBUS_PROBE_REQ] = "probe",
+		[HOSTAPD_UBUS_AUTH_REQ] = "auth",
+		[HOSTAPD_UBUS_ASSOC_REQ] = "assoc",
+	};
+	const char *type = "mgmt";
+	struct ubus_event_req ureq = {};
+	const u8 *addr;
+
+	if (req->mgmt_frame)
+		addr = req->mgmt_frame->sa;
+	else
+		addr = req->addr;
+
+	ban = avl_find_element(&hapd->ubus.banned, addr, ban, avl);
+	if (ban)
+		return -2;
+
+	if (!hapd->ubus.obj.has_subscribers)
+		return 0;
+
+	if (req->type < ARRAY_SIZE(types))
+		type = types[req->type];
+
+	blob_buf_init(&b, 0);
+	blobmsg_add_macaddr(&b, "address", addr);
+	if (req->mgmt_frame)
+		blobmsg_add_macaddr(&b, "target", req->mgmt_frame->da);
+	if (req->frame_info)
+		blobmsg_add_u32(&b, "signal", req->frame_info->ssi_signal);
+	blobmsg_add_u32(&b, "freq", hapd->iface->freq);
+
+	if (ubus_notify_async(ctx, &hapd->ubus.obj, type, b.head, &ureq.nreq))
+		return 0;
+
+	ureq.nreq.status_cb = ubus_event_cb;
+	ubus_complete_request(ctx, &ureq.nreq.req, 100);
+
+	if (ureq.deny)
+		return -1;
+
+	return 0;
+}
diff --git a/package/network/services/hostapd/src/src/ap/ubus.h b/package/network/services/hostapd/src/src/ap/ubus.h
new file mode 100644
index 0000000000..479ddfca7a
--- /dev/null
+++ b/package/network/services/hostapd/src/src/ap/ubus.h
@@ -0,0 +1,78 @@
+/*
+ * hostapd / ubus support
+ * Copyright (c) 2013, Felix Fietkau <nbd@nbd.name>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+#ifndef __HOSTAPD_UBUS_H
+#define __HOSTAPD_UBUS_H
+
+enum hostapd_ubus_event_type {
+	HOSTAPD_UBUS_PROBE_REQ,
+	HOSTAPD_UBUS_AUTH_REQ,
+	HOSTAPD_UBUS_ASSOC_REQ,
+	HOSTAPD_UBUS_TYPE_MAX
+};
+
+struct hostapd_ubus_request {
+	enum hostapd_ubus_event_type type;
+	const struct ieee80211_mgmt *mgmt_frame;
+	const struct hostapd_frame_info *frame_info;
+	const u8 *addr;
+};
+
+struct hostapd_iface;
+struct hostapd_data;
+
+#ifdef UBUS_SUPPORT
+
+#include <libubox/avl.h>
+#include <libubus.h>
+
+struct hostapd_ubus_iface {
+	struct ubus_object obj;
+};
+
+struct hostapd_ubus_bss {
+	struct ubus_object obj;
+	struct avl_tree banned;
+};
+
+void hostapd_ubus_add_iface(struct hostapd_iface *iface);
+void hostapd_ubus_free_iface(struct hostapd_iface *iface);
+void hostapd_ubus_add_bss(struct hostapd_data *hapd);
+void hostapd_ubus_free_bss(struct hostapd_data *hapd);
+
+int hostapd_ubus_handle_event(struct hostapd_data *hapd, struct hostapd_ubus_request *req);
+
+#else
+
+struct hostapd_ubus_iface {};
+
+struct hostapd_ubus_bss {};
+
+static inline void hostapd_ubus_add_iface(struct hostapd_iface *iface)
+{
+}
+
+static inline void hostapd_ubus_free_iface(struct hostapd_iface *iface)
+{
+}
+
+static inline void hostapd_ubus_add_bss(struct hostapd_data *hapd)
+{
+}
+
+static inline void hostapd_ubus_free_bss(struct hostapd_data *hapd)
+{
+}
+
+static inline int hostapd_ubus_handle_event(struct hostapd_data *hapd, struct hostapd_ubus_request *req)
+{
+	return 0;
+}
+
+#endif
+
+#endif
diff --git a/package/network/services/hostapd/src/src/utils/build_features.h b/package/network/services/hostapd/src/src/utils/build_features.h
new file mode 100644
index 0000000000..ffbb7978d9
--- /dev/null
+++ b/package/network/services/hostapd/src/src/utils/build_features.h
@@ -0,0 +1,17 @@
+#ifndef BUILD_FEATURES_H
+#define BUILD_FEATURES_H
+
+static inline int has_feature(const char *feat)
+{
+#ifdef IEEE8021X_EAPOL
+	if (!strcmp(feat, "eap"))
+		return 1;
+#endif
+#ifdef IEEE80211N
+	if (!strcmp(feat, "11n"))
+		return 1;
+#endif
+	return 0;
+}
+
+#endif /* BUILD_FEATURES_H */