From 2018bfa381e32d2e896ca7c8e47f68f5249dbedd Mon Sep 17 00:00:00 2001
From: Mike Hiretsky <mh@calculate.ru>
Date: Mon, 10 Oct 2016 17:43:38 +0300
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---
 pym/calculate/lib/utils/ip.py | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/pym/calculate/lib/utils/ip.py b/pym/calculate/lib/utils/ip.py
index 1f6a25f..e680851 100644
--- a/pym/calculate/lib/utils/ip.py
+++ b/pym/calculate/lib/utils/ip.py
@@ -50,6 +50,8 @@ SIOCGIFHWADDR = 0x8927
 
 # Resources allocated
 IFF_RUNNING = 0x40
+IFF_MASTER = 0x400
+IFF_SLAVE = 0x800
 
 # ip digit from 0|1-255|254 (template)
 IP_DIG = "[%s-9]|(?:1[0-9]|[1-9])[0-9]|2[0-4][0-9]|25[0-%s]"
@@ -243,8 +245,7 @@ def getIp(iface):
     ip = struct.unpack('16sH2x4s8x', res)[2]
     return socket.inet_ntoa(ip)
 
-
-def getPlugged(iface):
+def checkFlag(iface, flag):
     sockfd = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
     ifreq = struct.pack('16sH14s', iface, socket.AF_INET, '\x00' * 14)
     try:
@@ -253,8 +254,16 @@ def getPlugged(iface):
         return False
     finally:
         sockfd.close()
-    return bool(struct.unpack('16sH2x4s8x', res)[1] & IFF_RUNNING)
+    return bool(struct.unpack('16sH2x4s8x', res)[1] & flag)
+
+def getPlugged(iface):
+    return checkFlag(iface, IFF_RUNNING)
+
+def isSlaveInterface(iface):
+    return checkFlag(iface, IFF_SLAVE)
 
+def isMasterInterface(iface):
+    return checkFlag(iface, IFF_MASTER)
 
 def getMask(iface):
     """