From 9370ed86046648eb2c28d54c3cc491418920a16a Mon Sep 17 00:00:00 2001
From: Kelvin Sherlock <ksherlock@gmail.com>
Date: Tue, 18 Dec 2018 19:21:20 -0500
Subject: [PATCH] rawnet - add functions to get mac and mtu, if known.

---
 src/rawnet/rawnetarch.h        |  4 ++++
 src/rawnet/rawnetarch_darwin.c | 13 +++++++++++++
 src/rawnet/rawnetarch_unix.c   |  8 ++++++++
 src/rawnet/rawnetarch_win32.c  |  9 +++++++++
 4 files changed, 34 insertions(+)

diff --git a/src/rawnet/rawnetarch.h b/src/rawnet/rawnetarch.h
index 262dd29..f5749f3 100644
--- a/src/rawnet/rawnetarch.h
+++ b/src/rawnet/rawnetarch.h
@@ -65,4 +65,8 @@ extern int rawnet_arch_enumadapter_close(void);
 
 extern char *rawnet_arch_get_standard_interface(void);
 
+
+extern int rawnet_arch_get_mtu(void);
+extern int rawnet_arch_get_mac(uint8_t mac[6]);
+
 #endif
diff --git a/src/rawnet/rawnetarch_darwin.c b/src/rawnet/rawnetarch_darwin.c
index 69af2aa..8855d46 100644
--- a/src/rawnet/rawnetarch_darwin.c
+++ b/src/rawnet/rawnetarch_darwin.c
@@ -268,3 +268,16 @@ int rawnet_arch_enumadapter_close(void) {
 char *rawnet_arch_get_standard_interface(void) {
 	return lib_stralloc("vmnet");
 }
+
+int rawnet_arch_get_mtu(void) {
+	return interface ? interface_mtu : -1;
+}
+
+int rawnet_arch_get_mac(uint8_t mac[6]) {
+	if (interface) {
+		memcpy(mac, interface_mac, 6);
+		return 1;
+	}
+	return -1;
+}
+
diff --git a/src/rawnet/rawnetarch_unix.c b/src/rawnet/rawnetarch_unix.c
index 7bf8916..4b737d9 100644
--- a/src/rawnet/rawnetarch_unix.c
+++ b/src/rawnet/rawnetarch_unix.c
@@ -535,4 +535,12 @@ char *rawnet_arch_get_standard_interface(void)
     return dev;
 }
 
+extern int rawnet_arch_get_mtu(void) {
+    return -1;
+}
+
+extern int rawnet_arch_get_mac(uint8_t mac[6]) {
+    return -1;
+}
+
 #endif /* #ifdef HAVE_RAWNET */
diff --git a/src/rawnet/rawnetarch_win32.c b/src/rawnet/rawnetarch_win32.c
index 9f2ed1e..3a2655c 100644
--- a/src/rawnet/rawnetarch_win32.c
+++ b/src/rawnet/rawnetarch_win32.c
@@ -539,4 +539,13 @@ char *rawnet_arch_get_standard_interface(void)
 
     return dev;
 }
+
+extern int rawnet_arch_get_mtu(void) {
+    return -1;
+}
+
+extern int rawnet_arch_get_mac(uint8_t mac[6]) {
+    return -1;
+}
+
 #endif /* #ifdef HAVE_RAWNET */