6LoWPAN devices have an EUI-64 address rather than an EUI-48 address.
Use the full EUI-64 address when generating the clock identity to
avoid duplicates.
The constant ARPHRD_6LOWPAN is not yet present in the glibc version of
if_arp.h, so define it locally if necessary.
Signed-off-by: Michael Brown <mbr...@fensystems.co.uk>
---
address.h | 4 ++++
sk.c | 5 +++++
2 files changed, 9 insertions(+)
diff --git a/address.h b/address.h
index 35ef05f..eb5ef83 100644
--- a/address.h
+++ b/address.h
@@ -26,6 +26,10 @@
#include <sys/un.h>
#include <net/if_arp.h>
+#ifndef ARPHRD_6LOWPAN
+#define ARPHRD_6LOWPAN 825
+#endif
+
struct address {
socklen_t len;
union {
diff --git a/sk.c b/sk.c
index 72926ab..6017206 100644
--- a/sk.c
+++ b/sk.c
@@ -238,6 +238,11 @@ int sk_interface_macaddr(const char *name, struct address
*mac)
}
mac->sll.sll_halen = EUI64;
break;
+ case ARPHRD_6LOWPAN:
+ memcpy(mac->sll.sll_addr, &ifreq.ifr_hwaddr.sa_data,
+ GUID_LEN);
+ mac->sll.sll_halen = EUI64;
+ break;
default:
memcpy(mac->sll.sll_addr, &ifreq.ifr_hwaddr.sa_data,
MAC_LEN);
mac->sll.sll_halen = EUI48;
--
2.14.3
------------------------------------------------------------------------------
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