Add device_hw_address func to get device's MAC address.
Signed-off-by: Vadim Kochan <[email protected]>
---
dev.c | 23 +++++++++++++++++++++++
dev.h | 1 +
2 files changed, 24 insertions(+)
diff --git a/dev.c b/dev.c
index cf8d643..ad7b917 100644
--- a/dev.c
+++ b/dev.c
@@ -124,6 +124,29 @@ int device_address(const char *ifname, int af, struct
sockaddr_storage *ss)
return ret;
}
+int device_hw_address(const char *ifname, uint8_t *addr)
+{
+ int ret, sock;
+ struct ifreq ifr;
+
+ if (unlikely(!addr))
+ return -EINVAL;
+ if (!strncmp("any", ifname, strlen("any")))
+ return -EINVAL;
+
+ sock = af_socket(AF_INET);
+
+ memset(&ifr, 0, sizeof(ifr));
+ strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+
+ ret = ioctl(sock, SIOCGIFHWADDR, &ifr);
+ if (likely(!ret))
+ memcpy(addr, &ifr.ifr_hwaddr.sa_data[0], IFHWADDRLEN);
+
+ close(sock);
+ return ret;
+}
+
size_t device_mtu(const char *ifname)
{
size_t mtu = 0;
diff --git a/dev.h b/dev.h
index a9e4ccf..077e08f 100644
--- a/dev.h
+++ b/dev.h
@@ -7,6 +7,7 @@
extern size_t device_mtu(const char *ifname);
extern int device_address(const char *ifname, int af, struct sockaddr_storage
*ss);
extern int __device_ifindex(const char *ifname);
+extern int device_hw_address(const char *ifname, uint8_t *addr);
extern int device_ifindex(const char *ifname);
extern int device_type(const char *ifname);
extern short device_get_flags(const char *ifname);
--
2.6.3
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