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Merge pull request #3949 from OlegHahm/iphc_set_DAC

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6lowpan IPHC: set stateful compression mode f. dst
This commit is contained in:
Martine Lenders 2015-09-24 02:25:48 +02:00
commit 3c69d7bec3
1 changed files with 9 additions and 0 deletions
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9
sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c
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@ -618,6 +618,15 @@ bool gnrc_sixlowpan_iphc_encode(gnrc_pktsnip_t *pkt)
ipv6_addr_is_link_local(&ipv6_hdr->dst)) && (netif_hdr->dst_l2addr_len > 0)) {
eui64_t iid;
if (dst_ctx != NULL) {
/* stateful destination address compression */
iphc_hdr[IPHC2_IDX] |= SIXLOWPAN_IPHC2_DAC;
if (((dst_ctx->flags_id & GNRC_SIXLOWPAN_CTX_FLAGS_CID_MASK) != 0)) {
iphc_hdr[CID_EXT_IDX] |= ((dst_ctx->flags_id & GNRC_SIXLOWPAN_CTX_FLAGS_CID_MASK) << 4);
}
}
ieee802154_get_iid(&iid, gnrc_netif_hdr_get_dst_addr(netif_hdr),
netif_hdr->dst_l2addr_len);