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authorAlexander Aring <aar@pengutronix.de>2016-04-11 12:04:22 +0300
committerMarcel Holtmann <marcel@holtmann.org>2016-04-13 11:41:10 +0300
commita5862f2aba4ba53d461450685a67ae252935ab94 (patch)
treea17dadfd455ee95e796264d939e35de33ae5dd04 /include/net/6lowpan.h
parent2bc068c3d6e1212d09c11169c699560747ef8c2b (diff)
downloadlinux-a5862f2aba4ba53d461450685a67ae252935ab94.tar.xz
6lowpan: move eui64 uncompress function
This function will be use in later functionality in other branches than generic 6lowpan, so we move it to the global 6lowpan header. Signed-off-by: Alexander Aring <aar@pengutronix.de> Reviewed-by: Stefan Schmidt<stefan@osg.samsung.com> Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/net/6lowpan.h')
-rw-r--r--include/net/6lowpan.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/net/6lowpan.h b/include/net/6lowpan.h
index a0c01f55e0d3..04b877c5baff 100644
--- a/include/net/6lowpan.h
+++ b/include/net/6lowpan.h
@@ -169,6 +169,22 @@ struct lowpan_802154_cb *lowpan_802154_cb(const struct sk_buff *skb)
return (struct lowpan_802154_cb *)skb->cb;
}
+static inline void lowpan_iphc_uncompress_eui64_lladdr(struct in6_addr *ipaddr,
+ const void *lladdr)
+{
+ /* fe:80::XXXX:XXXX:XXXX:XXXX
+ * \_________________/
+ * hwaddr
+ */
+ ipaddr->s6_addr[0] = 0xFE;
+ ipaddr->s6_addr[1] = 0x80;
+ memcpy(&ipaddr->s6_addr[8], lladdr, EUI64_ADDR_LEN);
+ /* second bit-flip (Universe/Local)
+ * is done according RFC2464
+ */
+ ipaddr->s6_addr[8] ^= 0x02;
+}
+
#ifdef DEBUG
/* print data in line */
static inline void raw_dump_inline(const char *caller, char *msg,