3 * Copyright (c) 2009-2010, Atheros Communications
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
18 #include "common/ieee802_11_defs.h"
19 #include "wps/wps_i.h"
23 void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token)
25 wpabuf_put_u8(buf, WLAN_ACTION_VENDOR_SPECIFIC);
26 wpabuf_put_be24(buf, OUI_WFA);
27 wpabuf_put_u8(buf, P2P_OUI_TYPE);
29 wpabuf_put_u8(buf, subtype); /* OUI Subtype */
30 wpabuf_put_u8(buf, dialog_token);
31 wpa_printf(MSG_DEBUG, "P2P: * Dialog Token: %d", dialog_token);
35 void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
38 wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);
39 wpabuf_put_u8(buf, WLAN_PA_VENDOR_SPECIFIC);
40 wpabuf_put_be24(buf, OUI_WFA);
41 wpabuf_put_u8(buf, P2P_OUI_TYPE);
43 wpabuf_put_u8(buf, subtype); /* OUI Subtype */
44 wpabuf_put_u8(buf, dialog_token);
45 wpa_printf(MSG_DEBUG, "P2P: * Dialog Token: %d", dialog_token);
49 u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf)
54 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
55 len = wpabuf_put(buf, 1); /* IE length to be filled */
56 wpabuf_put_be24(buf, OUI_WFA);
57 wpabuf_put_u8(buf, P2P_OUI_TYPE);
58 wpa_printf(MSG_DEBUG, "P2P: * P2P IE header");
63 void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len)
65 /* Update P2P IE Length */
66 *len = (u8 *) wpabuf_put(buf, 0) - len - 1;
70 void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab)
73 wpabuf_put_u8(buf, P2P_ATTR_CAPABILITY);
74 wpabuf_put_le16(buf, 2);
75 wpabuf_put_u8(buf, dev_capab); /* Device Capabilities */
76 wpabuf_put_u8(buf, group_capab); /* Group Capabilities */
77 wpa_printf(MSG_DEBUG, "P2P: * Capability dev=%02x group=%02x",
78 dev_capab, group_capab);
82 void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent)
84 /* Group Owner Intent */
85 wpabuf_put_u8(buf, P2P_ATTR_GROUP_OWNER_INTENT);
86 wpabuf_put_le16(buf, 1);
87 wpabuf_put_u8(buf, go_intent);
88 wpa_printf(MSG_DEBUG, "P2P: * GO Intent: Intent %u Tie breaker %u",
89 go_intent >> 1, go_intent & 0x01);
93 void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country,
94 u8 reg_class, u8 channel)
97 wpabuf_put_u8(buf, P2P_ATTR_LISTEN_CHANNEL);
98 wpabuf_put_le16(buf, 5);
99 wpabuf_put_data(buf, country, 3);
100 wpabuf_put_u8(buf, reg_class); /* Regulatory Class */
101 wpabuf_put_u8(buf, channel); /* Channel Number */
102 wpa_printf(MSG_DEBUG, "P2P: * Listen Channel: Regulatory Class %u "
103 "Channel %u", reg_class, channel);
107 void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country,
108 u8 reg_class, u8 channel)
110 /* Operating Channel */
111 wpabuf_put_u8(buf, P2P_ATTR_OPERATING_CHANNEL);
112 wpabuf_put_le16(buf, 5);
113 wpabuf_put_data(buf, country, 3);
114 wpabuf_put_u8(buf, reg_class); /* Regulatory Class */
115 wpabuf_put_u8(buf, channel); /* Channel Number */
116 wpa_printf(MSG_DEBUG, "P2P: * Operating Channel: Regulatory Class %u "
117 "Channel %u", reg_class, channel);
121 void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
122 struct p2p_channels *chan)
128 wpabuf_put_u8(buf, P2P_ATTR_CHANNEL_LIST);
129 len = wpabuf_put(buf, 2); /* IE length to be filled */
130 wpabuf_put_data(buf, country, 3); /* Country String */
132 for (i = 0; i < chan->reg_classes; i++) {
133 struct p2p_reg_class *c = &chan->reg_class[i];
134 wpabuf_put_u8(buf, c->reg_class);
135 wpabuf_put_u8(buf, c->channels);
136 wpabuf_put_data(buf, c->channel, c->channels);
139 /* Update attribute length */
140 WPA_PUT_LE16(len, (u8 *) wpabuf_put(buf, 0) - len - 2);
141 wpa_printf(MSG_DEBUG, "P2P: * Channel List");
145 void p2p_buf_add_status(struct wpabuf *buf, u8 status)
148 wpabuf_put_u8(buf, P2P_ATTR_STATUS);
149 wpabuf_put_le16(buf, 1);
150 wpabuf_put_u8(buf, status);
151 wpa_printf(MSG_DEBUG, "P2P: * Status: %d", status);
155 void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p,
156 struct p2p_device *peer)
162 /* P2P Device Info */
163 wpabuf_put_u8(buf, P2P_ATTR_DEVICE_INFO);
164 len = wpabuf_put(buf, 2); /* IE length to be filled */
166 /* P2P Device address */
167 wpabuf_put_data(buf, p2p->cfg->dev_addr, ETH_ALEN);
171 if (peer && peer->wps_method != WPS_NOT_READY) {
172 if (peer->wps_method == WPS_PBC)
173 methods |= WPS_CONFIG_PUSHBUTTON;
174 else if (peer->wps_method == WPS_PIN_LABEL)
175 methods |= WPS_CONFIG_LABEL;
176 else if (peer->wps_method == WPS_PIN_DISPLAY ||
177 peer->wps_method == WPS_PIN_KEYPAD)
178 methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_KEYPAD;
180 methods |= WPS_CONFIG_PUSHBUTTON;
181 methods |= WPS_CONFIG_DISPLAY | WPS_CONFIG_KEYPAD;
183 wpabuf_put_be16(buf, methods);
185 /* Primary Device Type */
186 wpabuf_put_data(buf, p2p->cfg->pri_dev_type,
187 sizeof(p2p->cfg->pri_dev_type));
189 /* Number of Secondary Device Types */
190 wpabuf_put_u8(buf, p2p->cfg->num_sec_dev_types);
192 /* Secondary Device Type List */
193 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
194 wpabuf_put_data(buf, p2p->cfg->sec_dev_type[i],
198 nlen = p2p->cfg->dev_name ? os_strlen(p2p->cfg->dev_name) : 0;
199 wpabuf_put_be16(buf, ATTR_DEV_NAME);
200 wpabuf_put_be16(buf, nlen);
201 wpabuf_put_data(buf, p2p->cfg->dev_name, nlen);
203 /* Update attribute length */
204 WPA_PUT_LE16(len, (u8 *) wpabuf_put(buf, 0) - len - 2);
205 wpa_printf(MSG_DEBUG, "P2P: * Device Info");
209 void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr)
212 wpabuf_put_u8(buf, P2P_ATTR_DEVICE_ID);
213 wpabuf_put_le16(buf, ETH_ALEN);
214 wpabuf_put_data(buf, dev_addr, ETH_ALEN);
215 wpa_printf(MSG_DEBUG, "P2P: * Device ID: " MACSTR, MAC2STR(dev_addr));
219 void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
222 /* Configuration Timeout */
223 wpabuf_put_u8(buf, P2P_ATTR_CONFIGURATION_TIMEOUT);
224 wpabuf_put_le16(buf, 2);
225 wpabuf_put_u8(buf, go_timeout);
226 wpabuf_put_u8(buf, client_timeout);
227 wpa_printf(MSG_DEBUG, "P2P: * Configuration Timeout: GO %d (*10ms) "
228 "client %d (*10ms)", go_timeout, client_timeout);
232 void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr)
234 /* Intended P2P Interface Address */
235 wpabuf_put_u8(buf, P2P_ATTR_INTENDED_INTERFACE_ADDR);
236 wpabuf_put_le16(buf, ETH_ALEN);
237 wpabuf_put_data(buf, interface_addr, ETH_ALEN);
238 wpa_printf(MSG_DEBUG, "P2P: * Intended P2P Interface Address " MACSTR,
239 MAC2STR(interface_addr));
243 void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid)
245 /* P2P Group BSSID */
246 wpabuf_put_u8(buf, P2P_ATTR_GROUP_BSSID);
247 wpabuf_put_le16(buf, ETH_ALEN);
248 wpabuf_put_data(buf, bssid, ETH_ALEN);
249 wpa_printf(MSG_DEBUG, "P2P: * P2P Group BSSID " MACSTR,
254 void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr,
255 const u8 *ssid, size_t ssid_len)
258 wpabuf_put_u8(buf, P2P_ATTR_GROUP_ID);
259 wpabuf_put_le16(buf, ETH_ALEN + ssid_len);
260 wpabuf_put_data(buf, dev_addr, ETH_ALEN);
261 wpabuf_put_data(buf, ssid, ssid_len);
262 wpa_printf(MSG_DEBUG, "P2P: * P2P Group ID " MACSTR,
267 void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags)
269 /* Invitation Flags */
270 wpabuf_put_u8(buf, P2P_ATTR_INVITATION_FLAGS);
271 wpabuf_put_le16(buf, 1);
272 wpabuf_put_u8(buf, flags);
273 wpa_printf(MSG_DEBUG, "P2P: * Invitation Flags: bitmap 0x%x", flags);
277 static void p2p_buf_add_noa_desc(struct wpabuf *buf, struct p2p_noa_desc *desc)
282 wpabuf_put_u8(buf, desc->count_type);
283 wpabuf_put_le32(buf, desc->duration);
284 wpabuf_put_le32(buf, desc->interval);
285 wpabuf_put_le32(buf, desc->start_time);
289 void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow,
290 struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2)
292 /* Notice of Absence */
293 wpabuf_put_u8(buf, P2P_ATTR_NOTICE_OF_ABSENCE);
294 wpabuf_put_le16(buf, 2 + (desc1 ? 13 : 0) + (desc2 ? 13 : 0));
295 wpabuf_put_u8(buf, noa_index);
296 wpabuf_put_u8(buf, (opp_ps ? 0x80 : 0) | (ctwindow & 0x7f));
297 p2p_buf_add_noa_desc(buf, desc1);
298 p2p_buf_add_noa_desc(buf, desc2);
299 wpa_printf(MSG_DEBUG, "P2P: * Notice of Absence");
303 void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period,
306 /* Extended Listen Timing */
307 wpabuf_put_u8(buf, P2P_ATTR_EXT_LISTEN_TIMING);
308 wpabuf_put_le16(buf, 4);
309 wpabuf_put_le16(buf, period);
310 wpabuf_put_le16(buf, interval);
311 wpa_printf(MSG_DEBUG, "P2P: * Extended Listen Timing (period %u msec "
312 "interval %u msec)", period, interval);
316 void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p)
319 wpabuf_put_u8(buf, P2P_ATTR_INTERFACE);
320 wpabuf_put_le16(buf, ETH_ALEN + 1 + ETH_ALEN);
321 /* P2P Device address */
322 wpabuf_put_data(buf, p2p->cfg->dev_addr, ETH_ALEN);
324 * FIX: Fetch interface address list from driver. Do not include
325 * the P2P Device address if it is never used as interface address.
327 /* P2P Interface Address Count */
328 wpabuf_put_u8(buf, 1);
329 wpabuf_put_data(buf, p2p->cfg->dev_addr, ETH_ALEN);
333 void p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, u16 pw_id,
337 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
338 len = wpabuf_put(buf, 1);
339 wpabuf_put_be32(buf, WPS_DEV_OUI_WFA);
341 wps_build_version(buf);
344 wpabuf_put_be16(buf, ATTR_WPS_STATE);
345 wpabuf_put_be16(buf, 1);
346 wpabuf_put_u8(buf, WPS_STATE_NOT_CONFIGURED);
349 /* Device Password ID */
350 wpabuf_put_be16(buf, ATTR_DEV_PASSWORD_ID);
351 wpabuf_put_be16(buf, 2);
352 wpa_printf(MSG_DEBUG, "P2P: WPS IE Device Password ID: %d", pw_id);
353 wpabuf_put_be16(buf, pw_id);
358 wpabuf_put_be16(buf, ATTR_RESPONSE_TYPE);
359 wpabuf_put_be16(buf, 1);
360 wpabuf_put_u8(buf, WPS_RESP_ENROLLEE_INFO);
364 wps_build_uuid_e(buf, reg->wps->uuid);
365 wps_build_manufacturer(dev, buf);
366 wps_build_model_name(dev, buf);
367 wps_build_model_number(dev, buf);
368 wps_build_serial_number(dev, buf);
371 wpabuf_put_be16(buf, ATTR_PRIMARY_DEV_TYPE);
372 wpabuf_put_be16(buf, WPS_DEV_TYPE_LEN);
373 wpabuf_put_data(buf, p2p->cfg->pri_dev_type, WPS_DEV_TYPE_LEN);
375 wpabuf_put_be16(buf, ATTR_DEV_NAME);
376 nlen = p2p->cfg->dev_name ? os_strlen(p2p->cfg->dev_name) : 0;
377 wpabuf_put_be16(buf, nlen);
378 if (p2p->cfg->dev_name)
379 wpabuf_put_data(buf, p2p->cfg->dev_name, nlen);
381 wpabuf_put_be16(buf, ATTR_CONFIG_METHODS);
382 wpabuf_put_be16(buf, 2);
383 wpabuf_put_be16(buf, 0); /* FIX: ? */
386 wps_build_wfa_ext(buf, 0, NULL, 0);
388 p2p_buf_update_ie_hdr(buf, len);