src/p2p/p2p_parse.c

18 static int p2p_parse_attribute(u8 id, const u8 *data, u16 len,
27 		if (len < 2) {
29 				   "attribute (length %d)", len);
38 		if (len < ETH_ALEN) {
40 				   "attribute (length %d)", len);
48 		if (len < 1) {
50 				   "attribute (length %d)", len);
58 		if (len < 1) {
60 				   "attribute (length %d)", len);
67 		if (len == 0) {
72 		if (len < 5) {
74 				   "attribute (length %d)", len);
84 		if (len == 0) {
89 		if (len < 5) {
91 				   "Channel attribute (length %d)", len);
101 		if (len < 3) {
103 				   "attribute (length %d)", len);
107 		msg->channel_list_len = len;
115 		msg->group_info_len = len;
119 		if (len < ETH_ALEN + 2 + 8 + 1) {
121 				   "attribute (length %d)", len);
125 		msg->p2p_device_info_len = len;
134 		if (msg->num_sec_dev_types * 8 > data + len - pos) {
139 		if (data + len - pos < 4) {
141 				   "length %d", (int) (data + len - pos));
152 		if (data + len - pos < (int) nlen ||
155 				   "length %d (buf len %d)", (int) nlen,
156 				   (int) (data + len - pos));
176 		if (len < 2) {
178 				   "Timeout attribute (length %d)", len);
185 		if (len < ETH_ALEN) {
188 				   len);
196 		if (len < ETH_ALEN) {
198 				   "attribute (length %d)", len);
206 		if (len < ETH_ALEN || len > ETH_ALEN + SSID_MAX_LEN) {
208 				   "attribute length %d", len);
212 		msg->group_id_len = len;
220 		if (len < 1) {
222 				   "Flag attribute (length %d)", len);
230 		if (len < 1) {
232 				   "attribute (length %d)", len);
240 		if (len < 2) {
242 				   "Absence attribute (length %d)", len);
246 		msg->noa_len = len;
250 		if (len < 4) {
252 				   "Timing attribute (length %d)", len);
262 		if (len < 1) {
264 				   "Code attribute (length %d)", len);
272 		if (len < 6) {
274 				   "Channel attribute (length %d)", len);
285 		if (len < P2PS_HASH_LEN) {
288 				   len);
291 		msg->service_hash_count = len / P2PS_HASH_LEN;
293 		wpa_hexdump(MSG_DEBUG, "P2P: * Service Hash(s)", data, len);
297 		msg->session_info_len = len;
299 			   len, data);
302 		if (len < 1) {
305 				   len);
313 		if (len < 10) {
316 				   len);
325 		if (len < 8) {
328 				   len);
332 		msg->adv_service_instance_len = len;
333 		if (len <= 255 + 8) {
338 			if (namelen > len - 7)
350 		if (len < sizeof(u32) + ETH_ALEN) {
353 				   len);
362 		if (!len) {
365 				   len);
369 		msg->feature_cap_len = len;
370 		wpa_printf(MSG_DEBUG, "P2P: * Feature Cap (length=%u)", len);
374 		if (len < ETH_ALEN || len > ETH_ALEN + SSID_MAX_LEN) {
377 				   len);
382 		msg->persistent_ssid_len = len - ETH_ALEN;
392 			   "(length %d)", id, len);
431 				   "(len=%u left=%d)",
504  * @len: Length of data buffer in octets
514 int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg)
518 	ieee802_11_parse_elems(data, len, &elems, 0);
524 	msg->wps_attributes = ieee802_11_vendor_ie_concat(data, len,
532 	msg->p2p_attributes = ieee802_11_vendor_ie_concat(data, len,
547 			data, len, WFD_IE_VENDOR_TYPE);
561  * @len: Length of data buffer in octets
568 int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg)
572 	if (len < 1) {
579 	return p2p_parse_ies(data + 1, len - 1, msg);