More dns support

Solves issue: #19

freebsd/_freebsdcontext.py

@@ -102,7 +102,8 @@ class Context(BaseContext):
 
     @staticmethod
     def change_ip(interfaces, dns):
-        change_ip_freebsd(interfaces, dns)
+        nameservers = dns.replace(' ', '').split(',')
+        change_ip_freebsd(interfaces, nameservers)
 
     @staticmethod
     def set_time(time):

freebsd/network.py

@@ -33,7 +33,7 @@ def remove_interfaces_freebsd(devices):
                 "unable to remove interface configuration: " + if_file)
 
 
-def change_ip_freebsd(interfaces, dns):
+def change_ip_freebsd(interfaces, nameservers):
     data = list(get_interfaces_freebsd(interfaces))
     for ifname, conf in data:
         subprocess.call(('/usr/sbin/service', 'netif', 'stop', ifname))
@@ -69,7 +69,8 @@ def change_ip_freebsd(interfaces, dns):
                     f.write("defaultrouter=\""+str(conf['gw4'])+"\"\n")
 
     with open("/etc/resolv.conf", "w") as f:
-        f.write("nameserver "+dns)
+        for ns in nameservers:
+            f.write("nameserver %s\n" % ns)
 
     for ifname, conf in data:
         subprocess.call(('/usr/sbin/service', 'netif', 'start', ifname))

linux/_linuxcontext.py

@@ -89,10 +89,11 @@ class Context(BaseContext):
 
     @staticmethod
     def change_ip(interfaces, dns):
+        nameservers = dns.replace(' ', '').split(',')
         if distro == 'debian':
-            change_ip_ubuntu(interfaces, dns)
+            change_ip_ubuntu(interfaces, nameservers)
         elif distro == 'rhel':
-            change_ip_rhel(interfaces, dns)
+            change_ip_rhel(interfaces, nameservers)
 
     @staticmethod
     def set_time(time):

linux/network.py

@@ -52,7 +52,7 @@ def remove_interfaces_ubuntu(devices):
         print line
 
 
-def change_ip_ubuntu(interfaces, dns):
+def change_ip_ubuntu(interfaces, nameservers):
     data = list(get_interfaces_linux(interfaces))
 
     for ifname, conf in data:
@@ -91,7 +91,7 @@ def change_ip_ubuntu(interfaces, dns):
                         'ip': ip,
                         'prefixlen': prefixlen,
                         'gw': conf['gw6' if ip.version == 6 else 'gw4'],
-                        'dns': dns})
+                        'dns': ' '.join(nameservers)})
     for ifname, conf in data:
         subprocess.call(('/sbin/ifup', ifname))
 
@@ -106,19 +106,24 @@ def change_ip_ubuntu(interfaces, dns):
 #    '8.8.8.8')
 
 
-def change_ip_rhel(interfaces, dns):
+def change_ip_rhel(interfaces, nameservers):
     for ifname, conf in get_interfaces_linux(interfaces):
         subprocess.call(('/sbin/ifdown', ifname))
         subprocess.call(('/sbin/ip', 'addr', 'flush', 'dev', ifname))
         subprocess.call(('/sbin/ip', 'link', 'set', 'dev', ifname, 'down'))
-        with open(ifcfg_template % ifname,
-                  'w') as f:
+
+        with open(ifcfg_template % ifname, 'w') as f:
             f.write('DEVICE=%s\n'
-                    'DNS1=%s\n'
                     'BOOTPROTO=none\n'
                     'NM_CONTROLLED=no\n'
                     'USERCTL=no\n'
-                    'ONBOOT=yes\n' % (ifname, dns))
+                    'ONBOOT=yes\n' % ifname)
+            if len(nameservers) == 0:
+                f.write('PEERDNS=no')
+            if len(nameservers) >= 1:
+                f.write('DNS1=%s\n' % nameservers[0])
+            if len(nameservers) >= 2:
+                f.write('DNS2=%s\n' % nameservers[1])
             for i in conf['addresses']:
                 ip_with_prefix = IPNetwork(i)
                 ip = ip_with_prefix.ip

windows/_win32context.py

@@ -39,7 +39,8 @@ class Context(BaseContext):
 
     @staticmethod
     def change_ip(interfaces, dns):
-        change_ip_windows(interfaces, dns)
+        nameservers = dns.replace(' ', '').split(',')
+        change_ip_windows(interfaces, nameservers)
 
     @staticmethod
     def set_time(time):

windows/network.py

@@ -43,7 +43,7 @@ def get_interfaces_windows(interfaces):
             yield nic, conf
 
 
-def change_ip_windows(interfaces, dns):
+def change_ip_windows(interfaces, nameservers):
     for nic, conf in get_interfaces_windows(interfaces):
         link_local = IPNetwork('fe80::/16')
         new_addrs = set([IPAddress2(ip) for ip in conf['addresses']])
@@ -103,6 +103,9 @@ def change_ip_windows(interfaces, dns):
                     % (nic.InterfaceIndex, conf.get('gw6')), shell=True)
 
             # DNS
+            index = 1
+            for ns in nameservers:
                 check_output2('netsh interface ipv4 add dnsserver %s '
-                          'address=%s index=1'
-                          % (nic.InterfaceIndex, dns), shell=True)
+                              'address=%s index=%i'
+                              % (nic.InterfaceIndex, ns, index), shell=True)
+                index += 1