95 static inline void set_up_frag_hdr(struct net_buf *frag, uint16_t size, uint8_t offset)  in set_up_frag_hdr()  argument
100 	uint8_t pos = frag->len;  in set_up_frag_hdr()
104 		net_buf_add(frag, NET_6LO_FRAG1_HDR_LEN);  in set_up_frag_hdr()
105 		frag->data[pos] = NET_6LO_DISPATCH_FRAG1;  in set_up_frag_hdr()
107 		net_buf_add(frag, NET_6LO_FRAGN_HDR_LEN);  in set_up_frag_hdr()
108 		frag->data[pos] = NET_6LO_DISPATCH_FRAGN;  in set_up_frag_hdr()
111 	set_datagram_size(frag->data + pos, size);  in set_up_frag_hdr()
114 	set_datagram_tag(frag->data + pos, datagram_tag);  in set_up_frag_hdr()
118 		frag->data[pos] = offset;  in set_up_frag_hdr()
122 static inline uint8_t calc_payload_capacity(struct net_buf *frag)  in calc_payload_capacity()  argument
124 	uint8_t capacity = frag->size - frag->len;  in calc_payload_capacity()
345 static inline void fragment_append(struct net_pkt *pkt, struct net_buf *frag)  in fragment_append()  argument
347 	if (get_datagram_type(frag->data) == NET_6LO_DISPATCH_FRAG1) {  in fragment_append()
351 		frag->frags = pkt->buffer;  in fragment_append()
352 		pkt->buffer = frag;  in fragment_append()
354 		net_pkt_append_buffer(pkt, frag);  in fragment_append()
361 	struct net_buf *frag;  in fragment_cached_pkt_len()  local
365 	frag = pkt->buffer;  in fragment_cached_pkt_len()
366 	while (frag) {  in fragment_cached_pkt_len()
369 		if (get_datagram_type(frag->data) == NET_6LO_DISPATCH_FRAG1) {  in fragment_cached_pkt_len()
373 		len += frag->len - frag_hdr_len;  in fragment_cached_pkt_len()
375 		frag = frag->frags;  in fragment_cached_pkt_len()
395 static inline uint16_t fragment_offset(struct net_buf *frag)  in fragment_offset()  argument
397 	if (get_datagram_type(frag->data) == NET_6LO_DISPATCH_FRAG1) {  in fragment_offset()
401 	return ((uint16_t)frag->data[NET_FRAG_OFFSET_POS] << 3);  in fragment_offset()
404 static void fragment_move_back(struct net_pkt *pkt, struct net_buf *frag, struct net_buf *stop)  in fragment_move_back()  argument
412 		if (fragment_offset(frag) < fragment_offset(current)) {  in fragment_move_back()
414 				prev->frags = frag;  in fragment_move_back()
417 			frag->frags = current;  in fragment_move_back()
428 	struct net_buf *frag;  in fragment_remove_headers()  local
430 	frag = pkt->buffer;  in fragment_remove_headers()
431 	while (frag) {  in fragment_remove_headers()
434 		if (get_datagram_type(frag->data) == NET_6LO_DISPATCH_FRAG1) {  in fragment_remove_headers()
438 		memmove(frag->data, frag->data + frag_hdr_len, frag->len - frag_hdr_len);  in fragment_remove_headers()
439 		frag->len -= frag_hdr_len;  in fragment_remove_headers()
441 		frag = frag->frags;  in fragment_remove_headers()
485 	struct net_buf *frag;  in fragment_add_to_cache()  local
490 	frag = pkt->buffer;  in fragment_add_to_cache()
491 	type = get_datagram_type(frag->data);  in fragment_add_to_cache()
493 	if ((type == NET_6LO_DISPATCH_FRAG1 && frag->len < NET_6LO_FRAG1_HDR_LEN) ||  in fragment_add_to_cache()
494 	    (type == NET_6LO_DISPATCH_FRAGN && frag->len < NET_6LO_FRAGN_HDR_LEN)) {  in fragment_add_to_cache()
495 		NET_ERR("Fragment too short (%u): fragment dropped", frag->len);  in fragment_add_to_cache()
500 	size = get_datagram_size(frag->data);  in fragment_add_to_cache()
503 	tag = get_datagram_tag(frag->data + NET_6LO_FRAG_DATAGRAM_SIZE_LEN);  in fragment_add_to_cache()
517 			pkt->buffer = frag;  in fragment_add_to_cache()
524 	fragment_append(fcache->pkt, frag);  in fragment_add_to_cache()