69 	struct uml_l2tpv3_data *td = vp->transport_data;  in l2tpv3_form_header()  local
72 	if (td->udp)  in l2tpv3_form_header()
74 	(*(uint32_t *) (header + td->session_offset)) = td->tx_session;  in l2tpv3_form_header()
76 	if (td->cookie) {  in l2tpv3_form_header()
77 		if (td->cookie_is_64)  in l2tpv3_form_header()
78 			(*(uint64_t *)(header + td->cookie_offset)) =  in l2tpv3_form_header()
79 				td->tx_cookie;  in l2tpv3_form_header()
81 			(*(uint32_t *)(header + td->cookie_offset)) =  in l2tpv3_form_header()
82 				td->tx_cookie;  in l2tpv3_form_header()
84 	if (td->has_counter) {  in l2tpv3_form_header()
85 		counter = (uint32_t *)(header + td->counter_offset);  in l2tpv3_form_header()
86 		if (td->pin_counter) {  in l2tpv3_form_header()
89 			td->counter++;  in l2tpv3_form_header()
90 			*counter = cpu_to_be32(td->counter);  in l2tpv3_form_header()
99 	struct uml_gre_data *td = vp->transport_data;  in gre_form_header()  local
101 	*((uint32_t *) header) = *((uint32_t *) &td->expected_header);  in gre_form_header()
102 	if (td->key)  in gre_form_header()
103 		(*(uint32_t *) (header + td->key_offset)) = td->tx_key;  in gre_form_header()
104 	if (td->has_sequence) {  in gre_form_header()
105 		sequence = (uint32_t *)(header + td->sequence_offset);  in gre_form_header()
106 		if (td->pin_sequence)  in gre_form_header()
109 			*sequence = cpu_to_be32(++td->sequence);  in gre_form_header()
133 	struct uml_l2tpv3_data *td = vp->transport_data;  in l2tpv3_verify_header()  local
137 	if ((!td->udp) && (!td->ipv6))  in l2tpv3_verify_header()
145 	if (td->cookie) {  in l2tpv3_verify_header()
146 		if (td->cookie_is_64)  in l2tpv3_verify_header()
147 			cookie = *(uint64_t *)(header + td->cookie_offset);  in l2tpv3_verify_header()
149 			cookie = *(uint32_t *)(header + td->cookie_offset);  in l2tpv3_verify_header()
150 		if (cookie != td->rx_cookie) {  in l2tpv3_verify_header()
156 	session = (uint32_t *) (header + td->session_offset);  in l2tpv3_verify_header()
157 	if (*session != td->rx_session) {  in l2tpv3_verify_header()
170 	struct uml_gre_data *td = vp->transport_data;  in gre_verify_header()  local
172 	if (!td->ipv6)  in gre_verify_header()
175 	if (*((uint32_t *) header) != *((uint32_t *) &td->expected_header)) {  in gre_verify_header()
178 				*((uint32_t *) &td->expected_header),  in gre_verify_header()
184 	if (td->key) {  in gre_verify_header()
185 		key = (*(uint32_t *)(header + td->key_offset));  in gre_verify_header()
186 		if (key != td->rx_key) {  in gre_verify_header()
189 						key, td->rx_key);  in gre_verify_header()
243 	struct uml_gre_data *td;  in build_gre_transport_data()  local
251 	td = vp->transport_data;  in build_gre_transport_data()
252 	td->sequence = 0;  in build_gre_transport_data()
254 	td->expected_header.arptype = GRE_IRB;  in build_gre_transport_data()
255 	td->expected_header.header = 0;  in build_gre_transport_data()
260 	td->key_offset = 4;  in build_gre_transport_data()
261 	td->sequence_offset = 4;  in build_gre_transport_data()
262 	td->checksum_offset = 4;  in build_gre_transport_data()
264 	td->ipv6 = false;  in build_gre_transport_data()
267 			td->ipv6 = true;  in build_gre_transport_data()
269 	td->key = false;  in build_gre_transport_data()
272 			td->key = true;  in build_gre_transport_data()
273 			td->expected_header.header |= GRE_MODE_KEY;  in build_gre_transport_data()
274 			td->rx_key = cpu_to_be32(temp_rx);  in build_gre_transport_data()
275 			td->tx_key = cpu_to_be32(temp_tx);  in build_gre_transport_data()
277 			td->sequence_offset += 4;  in build_gre_transport_data()
283 	td->sequence = false;  in build_gre_transport_data()
287 			td->has_sequence = true;  in build_gre_transport_data()
288 			td->expected_header.header |= GRE_MODE_SEQUENCE;  in build_gre_transport_data()
292 					td->pin_sequence = true;  in build_gre_transport_data()
297 	if (!td->ipv6)  in build_gre_transport_data()
305 	struct uml_l2tpv3_data *td;  in build_l2tpv3_transport_data()  local
316 	td = vp->transport_data;  in build_l2tpv3_transport_data()
320 	td->counter = 0;  in build_l2tpv3_transport_data()
323 	td->session_offset = 0;  in build_l2tpv3_transport_data()
324 	td->cookie_offset = 4;  in build_l2tpv3_transport_data()
325 	td->counter_offset = 4;  in build_l2tpv3_transport_data()
328 	td->ipv6 = false;  in build_l2tpv3_transport_data()
331 			td->ipv6 = true;  in build_l2tpv3_transport_data()
336 			td->tx_session = cpu_to_be32(temp_txs);  in build_l2tpv3_transport_data()
337 			td->rx_session = cpu_to_be32(temp_rxs);  in build_l2tpv3_transport_data()
345 	td->cookie_is_64  = false;  in build_l2tpv3_transport_data()
348 			td->cookie_is_64  = true;  in build_l2tpv3_transport_data()
350 	td->cookie = false;  in build_l2tpv3_transport_data()
353 			td->cookie = true;  in build_l2tpv3_transport_data()
354 			if (td->cookie_is_64) {  in build_l2tpv3_transport_data()
355 				td->rx_cookie = cpu_to_be64(temp_rx);  in build_l2tpv3_transport_data()
356 				td->tx_cookie = cpu_to_be64(temp_tx);  in build_l2tpv3_transport_data()
358 				td->counter_offset += 8;  in build_l2tpv3_transport_data()
360 				td->rx_cookie = cpu_to_be32(temp_rx);  in build_l2tpv3_transport_data()
361 				td->tx_cookie = cpu_to_be32(temp_tx);  in build_l2tpv3_transport_data()
363 				td->counter_offset += 4;  in build_l2tpv3_transport_data()
370 	td->has_counter = false;  in build_l2tpv3_transport_data()
373 			td->has_counter = true;  in build_l2tpv3_transport_data()
378 					td->pin_counter = true;  in build_l2tpv3_transport_data()
385 			td->udp = true;  in build_l2tpv3_transport_data()
387 			td->counter_offset += 4;  in build_l2tpv3_transport_data()
388 			td->session_offset += 4;  in build_l2tpv3_transport_data()
389 			td->cookie_offset += 4;  in build_l2tpv3_transport_data()
394 	if ((!td->ipv6) && (!td->udp))  in build_l2tpv3_transport_data()