IPv6 method local: allow configuring device

[dyn-nsupdate.git] / client-scripts / dyn-ns-client

diff --git a/client-scripts/dyn-ns-client b/client-scripts/dyn-ns-client
index 88d92204e121fff6571d6dbf111aa4b9d2b09b75..93b977ff57b193c249972c010804a2be5197b07e 100755 (executable)
--- a/client-scripts/dyn-ns-client
+++ b/client-scripts/dyn-ns-client
@@ -61,9 +61,15 @@ def getMyIP(family, config, methods = {}, verbose = 0):
     method = config[family]['method']
     if method == 'none':
         return None
     method = config[family]['method']
     if method == 'none':
         return None

+    elif method == 'remove':
+        return ""

     elif method == 'web':
         server = config[family].get('server', config['DEFAULT']['server'])
     elif method == 'web':
         server = config[family].get('server', config['DEFAULT']['server'])

-        ip = urlopen('https://'+server+'/checkip', config)
+        url = 'https://'+server+'/checkip'
+        try:
+            ip = urlopen(url, config)
+        except urllib.error.URLError:
+            raise Exception("Error fetching {}, make sure the URL is correct and the internet connection actually works.".format(url))

         if verbose >= VERBOSE_FULL:
             print("Server",server,"says my",family,"is",ip)
         return ip
         if verbose >= VERBOSE_FULL:
             print("Server",server,"says my",family,"is",ip)
         return ip


@@ -79,7 +85,8 @@ def getMyIPv4(config, verbose = 0):
 def getMyIPv6(config, verbose = 0):
     '''Returns our current IPv6 address, detected as given by the configuration'''
     def local():
 def getMyIPv6(config, verbose = 0):
     '''Returns our current IPv6 address, detected as given by the configuration'''
     def local():

-        out = subprocess.check_output(["ip", "addr"])
+        device = config["IPv6"].get("device")
+        out = subprocess.check_output(["ip", "addr", "show"] + ([] if device is None else ["dev", device]))

         for line in out.decode('utf-8').split('\n'):
             m = re.search('inet6 ([a-fA-F0-9:]+)/64 ([a-zA-Z0-9 ]*)', line)
             if m is not None:
         for line in out.decode('utf-8').split('\n'):
             m = re.search('inet6 ([a-fA-F0-9:]+)/64 ([a-zA-Z0-9 ]*)', line)
             if m is not None:


@@ -143,9 +150,17 @@ def updateDomain(server, domain, ipv4, ipv6, password, config, verbose):
         if verbose >= VERBOSE_CHANGE:
             msg = "Successfully updated domain {} on {}:".format(domain, server)
             if ipv4 is not None:
         if verbose >= VERBOSE_CHANGE:
             msg = "Successfully updated domain {} on {}:".format(domain, server)
             if ipv4 is not None:

-                msg += " IPv4={} -> {}".format(curIPv4, ipv4)
+                if curIPv4 == ipv4:
+                    msg += " IPv4={} (unchanged)".format(curIPv4)
+                else:
+                    msg += " IPv4={} -> {}".format(curIPv4, ipv4)
+            if ipv4 is not None and ipv6 is not None:
+                msg += ","

             if ipv6 is not None:
             if ipv6 is not None:

-                msg += " IPv6={} -> {}".format(curIPv6, ipv6)
+                if curIPv6 == ipv6:
+                    msg += " IPv6={} (unchanged)".format(curIPv6)
+                else:
+                    msg += " IPv6={} -> {}".format(curIPv6, ipv6)

             print(msg)
         # all went all right
         return True
             print(msg)
         # all went all right
         return True