func toIPRange(dest string) (garden.IPRange, error) {
idx := strings.IndexAny(dest, "-/")
// Not a range or a CIDR
if idx == -1 {
ip := net.ParseIP(dest)
if ip == nil {
return garden.IPRange{}, ErrIPRangeConversionFailed
}
return garden.IPRangeFromIP(ip), nil
}
// We have a CIDR
if dest[idx] == '/' {
_, ipNet, err := net.ParseCIDR(dest)
if err != nil {
return garden.IPRange{}, ErrIPRangeConversionFailed
}
return garden.IPRangeFromIPNet(ipNet), nil
}
// We have an IP range
firstIP := net.ParseIP(dest[:idx])
secondIP := net.ParseIP(dest[idx+1:])
if firstIP == nil || secondIP == nil {
return garden.IPRange{}, ErrIPRangeConversionFailed
}
return garden.IPRange{Start: firstIP, End: secondIP}, nil
}
var _ = Describe("NetOutRule helper functions", func() {
Describe("IPRangeFromIP", func() {
It("Creates an IPRange with the Start and End set to the passed IP", func() {
r := garden.IPRangeFromIP(net.ParseIP("1.2.3.4"))
Ω(r.Start).Should(Equal(net.ParseIP("1.2.3.4")))
Ω(r.End).Should(Equal(r.Start))
})
})
Describe("IPRangeFromIPNet", func() {
It("Creates an IPRange with the Start and End set to the extent of the IPNet", func() {
ip, cidr, err := net.ParseCIDR("1.2.3.0/24")
Ω(err).Should(Succeed())
r := garden.IPRangeFromIPNet(cidr)
Ω(r.Start.String()).Should(Equal(ip.String()))
Ω(r.End.String()).Should(Equal("1.2.3.255"))
})
})
Describe("PortRangeFromPort", func() {
It("Creates an PortRange with the Start and End set to the passed port", func() {
r := garden.PortRangeFromPort(2)
Ω(r.Start).Should(Equal(uint16(2)))
Ω(r.End).Should(Equal(r.Start))
})
})
Describe("ICMPControlCode", func() {
It("returns an ICMPCode with the passed uint8", func() {