net/6lowpan/nhc_udp.c

39 	struct udphdr uh;
48 		fail |= lowpan_fetch_skb(skb, &uh.source, sizeof(uh.source));
49 		fail |= lowpan_fetch_skb(skb, &uh.dest, sizeof(uh.dest));
52 		fail |= lowpan_fetch_skb(skb, &uh.source, sizeof(uh.source));
54 		uh.dest = htons(val + LOWPAN_NHC_UDP_8BIT_PORT);
58 		uh.source = htons(val + LOWPAN_NHC_UDP_8BIT_PORT);
59 		fail |= lowpan_fetch_skb(skb, &uh.dest, sizeof(uh.dest));
63 		uh.source = htons(LOWPAN_NHC_UDP_4BIT_PORT + (val >> 4));
64 		uh.dest = htons(LOWPAN_NHC_UDP_4BIT_PORT + (val & 0x0f));
71 		 ntohs(uh.source), ntohs(uh.dest));
78 		fail |= lowpan_fetch_skb(skb, &uh.check, sizeof(uh.check));
91 			uh.len = htons(lowpan_802154_cb(skb)->d_size -
94 			uh.len = htons(skb->len + sizeof(struct udphdr));
97 		uh.len = htons(skb->len + sizeof(struct udphdr));
100 	pr_debug("uncompressed UDP length: src = %d", ntohs(uh.len));
110 	skb_copy_to_linear_data(skb, &uh, sizeof(struct udphdr));
117 	const struct udphdr *uh = udp_hdr(skb);
120 	if (((ntohs(uh->source) & LOWPAN_NHC_UDP_4BIT_MASK) ==
122 	    ((ntohs(uh->dest) & LOWPAN_NHC_UDP_4BIT_MASK) ==
129 		tmp = ntohs(uh->dest) - LOWPAN_NHC_UDP_4BIT_PORT +
130 		      ((ntohs(uh->source) - LOWPAN_NHC_UDP_4BIT_PORT) << 4);
132 	} else if ((ntohs(uh->dest) & LOWPAN_NHC_UDP_8BIT_MASK) ==
139 		lowpan_push_hc_data(hc_ptr, &uh->source, sizeof(uh->source));
141 		tmp = ntohs(uh->dest) - LOWPAN_NHC_UDP_8BIT_PORT;
143 	} else if ((ntohs(uh->source) & LOWPAN_NHC_UDP_8BIT_MASK) ==
150 		tmp = ntohs(uh->source) - LOWPAN_NHC_UDP_8BIT_PORT;
153 		lowpan_push_hc_data(hc_ptr, &uh->dest, sizeof(uh->dest));
160 		lowpan_push_hc_data(hc_ptr, &uh->source, sizeof(uh->source));
162 		lowpan_push_hc_data(hc_ptr, &uh->dest, sizeof(uh->dest));
166 	lowpan_push_hc_data(hc_ptr, &uh->check, sizeof(uh->check));