def subnetentry(x):
''' Generate a subnet declaration block given an IPv4 prefix string
for inclusion in the config file.
'''
if x.find(":") >= 0:
# this is an IPv6 address
return ''
else:
net = IPv4Prefix(x)
return 'ip rule add from %s table 224 pref 80' % (net)
def subnetentry2(x):
''' Generate a subnet declaration block given an IPv4 prefix string
for inclusion in the config file.
'''
if x.find(":") >= 0:
# this is an IPv6 address
return ""
else:
net = IPv4Prefix(x)
return '\tlan %s domain=0\n' % (net)
def subnetentry(x):
''' Generate a subnet declaration block given an IPv4 prefix string
for inclusion in the config file.
'''
if x.find(":") >= 0:
# this is an IPv6 address
return ""
else:
net = IPv4Prefix(x)
return 'echo " network %s"' % (net)
def generatequaggaconfig(cls, node):
cfg = "router ospf\n"
rtrid = cls.routerid(node)
cfg += " router-id %s\n" % rtrid
# network 10.0.0.0/24 area 0
for ifc in node.netifs():
if hasattr(ifc, 'control') and ifc.control == True:
continue
for a in ifc.addrlist:
if a.find(".") < 0:
continue
net = IPv4Prefix(a)
cfg += " network %s area 0\n" % net
cfg += "!\n"
return cfg
def firstipv4prefix(node, prefixlen=24):
''' Similar to QuaggaService.routerid(). Helper to return the first IPv4
prefix of a node, using the supplied prefix length. This ignores the
interface's prefix length, so e.g. '/32' can turn into '/24'.
'''
for ifc in node.netifs():
if hasattr(ifc, 'control') and ifc.control == True:
continue
for a in ifc.addrlist:
if a.find(".") >= 0:
addr = a.split('/')[0]
pre = IPv4Prefix("%s/%s" % (addr, prefixlen))
return str(pre)
#raise ValueError, "no IPv4 address found"
return "0.0.0.0/%s" % prefixlen
def addrstr(x):
if x.find(":") >= 0:
net = IPv6Prefix(x)
fam = "inet6 ::"
else:
net = IPv4Prefix(x)
fam = "inet 0.0.0.0"
if net.maxaddr() == net.minaddr():
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.minaddr())
def routestr(x):
if x.find(":") >= 0:
net = IPv6Prefix(x)
fam = "inet6"
dst = "3ffe:4::/64"
else:
net = IPv4Prefix(x)
fam = "inet"
dst = "10.9.8.0/24"
if net.maxaddr() == net.minaddr():
return ""
else:
if os.uname()[0] == "Linux":
rtcmd = "#/sbin/ip route add %s via" % dst
elif os.uname()[0] == "FreeBSD":
rtcmd = "#/sbin/route add -%s %s" % (fam, dst)
else:
raise Exception, "unknown platform"
return "%s %s" % (rtcmd, net.minaddr())
def subnetentry(x):
''' Generate a subnet declaration block given an IPv4 prefix string
for inclusion in the dhcpd3 config file.
'''
if x.find(":") >= 0:
return ""
else:
addr = x.split("/")[0]
net = IPv4Prefix(x)
# divide the address space in half
rangelow = net.addr(net.numaddr() / 2)
rangehigh = net.maxaddr()
return """
subnet %s netmask %s {
pool {
range %s %s;
default-lease-time 600;
option routers %s;
}
}
""" % (net.prefixstr(), net.netmaskstr(), rangelow, rangehigh, addr)