63 static void eap_tnc_set_state(struct eap_tnc_data *data,  in eap_tnc_set_state()  argument
67 		   eap_tnc_state_txt(data->state),  in eap_tnc_set_state()
69 	data->state = new_state;  in eap_tnc_set_state()
75 	struct eap_tnc_data *data;  in eap_tnc_init()  local
77 	data = os_zalloc(sizeof(*data));  in eap_tnc_init()
78 	if (data == NULL)  in eap_tnc_init()
80 	eap_tnc_set_state(data, START);  in eap_tnc_init()
81 	data->tncs = tncs_init();  in eap_tnc_init()
82 	if (data->tncs == NULL) {  in eap_tnc_init()
83 		os_free(data);  in eap_tnc_init()
87 	data->fragment_size = sm->cfg->fragment_size > 100 ?  in eap_tnc_init()
90 	return data;  in eap_tnc_init()
96 	struct eap_tnc_data *data = priv;  in eap_tnc_reset()  local
97 	wpabuf_free(data->in_buf);  in eap_tnc_reset()
98 	wpabuf_free(data->out_buf);  in eap_tnc_reset()
99 	tncs_deinit(data->tncs);  in eap_tnc_reset()
100 	os_free(data);  in eap_tnc_reset()
105 					   struct eap_tnc_data *data, u8 id)  in eap_tnc_build_start()  argument
114 		eap_tnc_set_state(data, FAIL);  in eap_tnc_build_start()
120 	eap_tnc_set_state(data, CONTINUE);  in eap_tnc_build_start()
127 				     struct eap_tnc_data *data)  in eap_tnc_build()  argument
136 	imv_len = tncs_total_send_len(data->tncs);  in eap_tnc_build()
138 	start_buf = tncs_if_tnccs_start(data->tncs);  in eap_tnc_build()
161 	rpos = tncs_copy_send_buf(data->tncs, rpos1);  in eap_tnc_build()
175 						    struct eap_tnc_data *data)  in eap_tnc_build_recommendation()  argument
177 	switch (data->recommendation) {  in eap_tnc_build_recommendation()
179 		eap_tnc_set_state(data, DONE);  in eap_tnc_build_recommendation()
182 		eap_tnc_set_state(data, FAIL);  in eap_tnc_build_recommendation()
186 		eap_tnc_set_state(data, FAIL);  in eap_tnc_build_recommendation()
189 		eap_tnc_set_state(data, DONE);  in eap_tnc_build_recommendation()
196 	return eap_tnc_build(sm, data);  in eap_tnc_build_recommendation()
218 static struct wpabuf * eap_tnc_build_msg(struct eap_tnc_data *data, u8 id)  in eap_tnc_build_msg()  argument
227 	send_len = wpabuf_len(data->out_buf) - data->out_used;  in eap_tnc_build_msg()
228 	if (1 + send_len > data->fragment_size) {  in eap_tnc_build_msg()
229 		send_len = data->fragment_size - 1;  in eap_tnc_build_msg()
231 		if (data->out_used == 0) {  in eap_tnc_build_msg()
247 		wpabuf_put_be32(req, wpabuf_len(data->out_buf));  in eap_tnc_build_msg()
249 	wpabuf_put_data(req, wpabuf_head_u8(data->out_buf) + data->out_used,  in eap_tnc_build_msg()
251 	data->out_used += send_len;  in eap_tnc_build_msg()
253 	if (data->out_used == wpabuf_len(data->out_buf)) {  in eap_tnc_build_msg()
257 		wpabuf_free(data->out_buf);  in eap_tnc_build_msg()
258 		data->out_buf = NULL;  in eap_tnc_build_msg()
259 		data->out_used = 0;  in eap_tnc_build_msg()
260 		if (data->was_fail)  in eap_tnc_build_msg()
261 			eap_tnc_set_state(data, FAIL);  in eap_tnc_build_msg()
262 		else if (data->was_done)  in eap_tnc_build_msg()
263 			eap_tnc_set_state(data, DONE);  in eap_tnc_build_msg()
267 			   (unsigned long) wpabuf_len(data->out_buf) -  in eap_tnc_build_msg()
268 			   data->out_used);  in eap_tnc_build_msg()
269 		if (data->state == FAIL)  in eap_tnc_build_msg()
270 			data->was_fail = 1;  in eap_tnc_build_msg()
271 		else if (data->state == DONE)  in eap_tnc_build_msg()
272 			data->was_done = 1;  in eap_tnc_build_msg()
273 		eap_tnc_set_state(data, WAIT_FRAG_ACK);  in eap_tnc_build_msg()
282 	struct eap_tnc_data *data = priv;  in eap_tnc_buildReq()  local
284 	switch (data->state) {  in eap_tnc_buildReq()
286 		tncs_init_connection(data->tncs);  in eap_tnc_buildReq()
287 		return eap_tnc_build_start(sm, data, id);  in eap_tnc_buildReq()
289 		if (data->out_buf == NULL) {  in eap_tnc_buildReq()
290 			data->out_buf = eap_tnc_build(sm, data);  in eap_tnc_buildReq()
291 			if (data->out_buf == NULL) {  in eap_tnc_buildReq()
296 			data->out_used = 0;  in eap_tnc_buildReq()
298 		return eap_tnc_build_msg(data, id);  in eap_tnc_buildReq()
300 		if (data->out_buf == NULL) {  in eap_tnc_buildReq()
301 			data->out_buf = eap_tnc_build_recommendation(sm, data);  in eap_tnc_buildReq()
302 			if (data->out_buf == NULL) {  in eap_tnc_buildReq()
307 			data->out_used = 0;  in eap_tnc_buildReq()
309 		return eap_tnc_build_msg(data, id);  in eap_tnc_buildReq()
311 		return eap_tnc_build_msg(data, id);  in eap_tnc_buildReq()
326 	struct eap_tnc_data *data = priv;  in eap_tnc_check()  local
337 	if (len == 0 && data->state != WAIT_FRAG_ACK) {  in eap_tnc_check()
360 static void tncs_process(struct eap_tnc_data *data, struct wpabuf *inbuf)  in tncs_process()  argument
364 	res = tncs_process_if_tnccs(data->tncs, wpabuf_head(inbuf),  in tncs_process()
369 		eap_tnc_set_state(data, RECOMMENDATION);  in tncs_process()
370 		data->recommendation = ALLOW;  in tncs_process()
374 		eap_tnc_set_state(data, RECOMMENDATION);  in tncs_process()
375 		data->recommendation = NO_RECOMMENDATION;  in tncs_process()
379 		eap_tnc_set_state(data, RECOMMENDATION);  in tncs_process()
380 		data->recommendation = ISOLATE;  in tncs_process()
384 		eap_tnc_set_state(data, RECOMMENDATION);  in tncs_process()
385 		data->recommendation = NO_ACCESS;  in tncs_process()
389 		eap_tnc_set_state(data, FAIL);  in tncs_process()
397 static int eap_tnc_process_cont(struct eap_tnc_data *data,  in eap_tnc_process_cont()  argument
401 	if (len > wpabuf_tailroom(data->in_buf)) {  in eap_tnc_process_cont()
403 		eap_tnc_set_state(data, FAIL);  in eap_tnc_process_cont()
407 	wpabuf_put_data(data->in_buf, buf, len);  in eap_tnc_process_cont()
410 		   (unsigned long) wpabuf_tailroom(data->in_buf));  in eap_tnc_process_cont()
416 static int eap_tnc_process_fragment(struct eap_tnc_data *data,  in eap_tnc_process_fragment()  argument
421 	if (data->in_buf == NULL && !(flags & EAP_TNC_FLAGS_LENGTH_INCLUDED)) {  in eap_tnc_process_fragment()
427 	if (data->in_buf == NULL) {  in eap_tnc_process_fragment()
429 		data->in_buf = wpabuf_alloc(message_length);  in eap_tnc_process_fragment()
430 		if (data->in_buf == NULL) {  in eap_tnc_process_fragment()
435 		wpabuf_put_data(data->in_buf, buf, len);  in eap_tnc_process_fragment()
439 			   (unsigned long) wpabuf_tailroom(data->in_buf));  in eap_tnc_process_fragment()
449 	struct eap_tnc_data *data = priv;  in eap_tnc_process()  local
462 	if (len == 1 && (data->state == DONE || data->state == FAIL)) {  in eap_tnc_process()
477 			eap_tnc_set_state(data, FAIL);  in eap_tnc_process()
488 			eap_tnc_set_state(data, FAIL);  in eap_tnc_process()
495 	if (data->state == WAIT_FRAG_ACK) {  in eap_tnc_process()
499 			eap_tnc_set_state(data, FAIL);  in eap_tnc_process()
503 		eap_tnc_set_state(data, CONTINUE);  in eap_tnc_process()
507 	if (data->in_buf && eap_tnc_process_cont(data, pos, end - pos) < 0) {  in eap_tnc_process()
508 		eap_tnc_set_state(data, FAIL);  in eap_tnc_process()
513 		if (eap_tnc_process_fragment(data, flags, message_length,  in eap_tnc_process()
515 			eap_tnc_set_state(data, FAIL);  in eap_tnc_process()
517 			eap_tnc_set_state(data, FRAG_ACK);  in eap_tnc_process()
519 	} else if (data->state == FRAG_ACK) {  in eap_tnc_process()
521 		eap_tnc_set_state(data, CONTINUE);  in eap_tnc_process()
524 	if (data->in_buf == NULL) {  in eap_tnc_process()
527 		data->in_buf = &tmpbuf;  in eap_tnc_process()
531 			  wpabuf_head(data->in_buf), wpabuf_len(data->in_buf));  in eap_tnc_process()
532 	tncs_process(data, data->in_buf);  in eap_tnc_process()
534 	if (data->in_buf != &tmpbuf)  in eap_tnc_process()
535 		wpabuf_free(data->in_buf);  in eap_tnc_process()
536 	data->in_buf = NULL;  in eap_tnc_process()
542 	struct eap_tnc_data *data = priv;  in eap_tnc_isDone()  local
543 	return data->state == DONE || data->state == FAIL;  in eap_tnc_isDone()
549 	struct eap_tnc_data *data = priv;  in eap_tnc_isSuccess()  local
550 	return data->state == DONE;  in eap_tnc_isSuccess()