def subnetentry(x):
"""
Generate a subnet declaration block given an IPv6 prefix string
for inclusion in the RADVD config file.
"""
if x.find(":") >= 0:
net = Ipv6Prefix(x)
return str(net)
else:
return ""
def addrstr(x):
if x.find(":") >= 0:
net = Ipv6Prefix(x)
else:
net = Ipv4Prefix(x)
if net.max_addr() == net.min_addr():
return ""
else:
if os.uname()[0] == "Linux":
rtcmd = "ip route add default via"
else:
raise Exception("unknown platform")
return "%s %s" % (rtcmd, net.min_addr())
def routestr(x):
if x.find(":") >= 0:
net = Ipv6Prefix(x)
dst = "3ffe:4::/64"
else:
net = Ipv4Prefix(x)
dst = "10.9.8.0/24"
if net.max_addr() == net.min_addr():
return ""
else:
if os.uname()[0] == "Linux":
rtcmd = "#/sbin/ip route add %s via" % dst
else:
raise Exception("unknown platform")
return "%s %s" % (rtcmd, net.min_addr())
def __init__(self, ip4_prefix=None, ip6_prefix=None):
"""
Creates an IpPrefixes object.
:param str ip4_prefix: ip4 prefix to use for generation
:param str ip6_prefix: ip6 prefix to use for generation
:raises ValueError: when both ip4 and ip6 prefixes have not been provided
"""
if not ip4_prefix and not ip6_prefix:
raise ValueError("ip4 or ip6 must be provided")
self.ip4 = None
if ip4_prefix:
self.ip4 = Ipv4Prefix(ip4_prefix)
self.ip6 = None
if ip6_prefix:
self.ip6 = Ipv6Prefix(ip6_prefix)
def addrstr(x):
if x.find(":") >= 0:
net = Ipv6Prefix(x)
fam = "inet6 ::"
else:
net = Ipv4Prefix(x)
fam = "inet 0.0.0.0"
if net.max_addr() == net.min_addr():
return ""
else:
if os.uname()[0] == "Linux":
rtcmd = "ip route add default via"
elif os.uname()[0] == "FreeBSD":
rtcmd = "route add -%s" % fam
else:
raise Exception, "unknown platform"
return "%s %s" % (rtcmd, net.min_addr())