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 in missing.h if necessary.
Signed-off-by: Michael Brown <mbr...@fensystems.co.uk>
---
v2: Local definition of ARPHRD_6LOWPAN moved to missing.h as requested
by Miroslav Lichvar
missing.h | 5 +++++
sk.c | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/missing.h b/missing.h
index 16ae97a..d85c5ad 100644
--- a/missing.h
+++ b/missing.h
@@ -26,6 +26,7 @@
#include <time.h>
#include <sys/syscall.h>
#include <sys/timex.h>
+#include <net/if_arp.h>
#include <unistd.h>
#ifndef ADJ_TAI
@@ -105,6 +106,10 @@ enum {
#define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)
#endif /*IFLA_BOND_MAX*/
+#ifndef ARPHRD_6LOWPAN
+#define ARPHRD_6LOWPAN 825
+#endif
+
#ifdef __UCLIBC__
#if (_XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L) && \
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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