switch to smaller ip lib

controllers/network_test.go

@@ -289,6 +289,7 @@ func TestIpv6Network(t *testing.T) {
 
 	database.InitializeDatabase()
 	os.Setenv("MASTER_KEY", "secretkey")
+	deleteAllNetworks()
 	createNet()
 	createNetDualStack()
 	network, err := logic.GetNetwork("skynet6")
@@ -300,7 +301,7 @@ func TestIpv6Network(t *testing.T) {
 	nodeErr := logic.CreateNode(&node1)
 	t.Run("Test node on network IPv6", func(t *testing.T) {
 		assert.Nil(t, nodeErr)
-		assert.Equal(t, node1.Address6, "fde6:be04:fa5e:d076::1")
+		assert.Equal(t, "fde6:be04:fa5e:d076::", node1.Address6)
 	})
 }
 

go.mod

@@ -32,6 +32,7 @@ require (
 require (
 	filippo.io/edwards25519 v1.0.0-rc.1
 	fyne.io/fyne/v2 v2.1.4
+	github.com/c-robinson/iplib v1.0.3
 	github.com/cloverstd/tcping v0.1.1
 	github.com/guumaster/hostctl v1.1.2
 	github.com/kr/pretty v0.3.0

go.sum

@@ -19,6 +19,8 @@ github.com/antzucaro/matchr v0.0.0-20210222213004-b04723ef80f0/go.mod h1:v3ZDlfV
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/c-robinson/iplib v1.0.3 h1:NG0UF0GoEsrC1/vyfX1Lx2Ss7CySWl3KqqXh3q4DdPU=
+github.com/c-robinson/iplib v1.0.3/go.mod h1:i3LuuFL1hRT5gFpBRnEydzw8R6yhGkF4szNDIbF8pgo=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cloverstd/tcping v0.1.1 h1:3Yp9nvSDI7Z63zoVQDJzVk1PUczrF9tJoOrKGV30iOk=

logic/ips/ips.go

@@ -1,62 +0,0 @@
-package ips
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/seancfoley/ipaddress-go/ipaddr"
-)
-
-// GetFirstAddr - gets the first valid address in a given IPv4 CIDR
-func GetFirstAddr(cidr4 string) (*ipaddr.IPAddress, error) {
-	currentCidr := ipaddr.NewIPAddressString(cidr4).GetAddress()
-	if !currentCidr.IsIPv4() {
-		return nil, fmt.Errorf("invalid IPv4 CIDR provided to GetFirstAddr")
-	}
-	lower := currentCidr.GetLower()
-	ipParts := strings.Split(lower.GetNetIPAddr().IP.String(), ".")
-	if ipParts[len(ipParts)-1] == "0" {
-		lower = lower.Increment(1)
-	}
-	return lower, nil
-}
-
-// GetLastAddr - gets the last valid address in a given IPv4 CIDR
-func GetLastAddr(cidr4 string) (*ipaddr.IPAddress, error) {
-	currentCidr := ipaddr.NewIPAddressString(cidr4).GetAddress()
-	if !currentCidr.IsIPv4() {
-		return nil, fmt.Errorf("invalid IPv4 CIDR provided to GetLastAddr")
-	}
-	upper := currentCidr.GetUpper()
-	ipParts := strings.Split(upper.GetNetIPAddr().IP.String(), ".")
-	if ipParts[len(ipParts)-1] == "255" {
-		upper = upper.Increment(-1)
-	}
-	return upper, nil
-}
-
-// GetFirstAddr6 - gets the first valid IPv6 address in a given IPv6 CIDR
-func GetFirstAddr6(cidr6 string) (*ipaddr.IPAddress, error) {
-	currentCidr := ipaddr.NewIPAddressString(cidr6).GetAddress()
-	if !currentCidr.IsIPv6() {
-		return nil, fmt.Errorf("invalid IPv6 CIDR provided to GetFirstAddr6")
-	}
-	lower := currentCidr.GetLower()
-	ipParts := strings.Split(lower.GetNetIPAddr().IP.String(), "::")
-	if len(ipParts) == 2 {
-		if len(ipParts[len(ipParts)-1]) == 0 {
-			lower = lower.Increment(1)
-		}
-	}
-	return lower, nil
-}
-
-// GetLastAddr6 - gets the last valid IPv6 address in a given IPv6 CIDR
-func GetLastAddr6(cidr6 string) (*ipaddr.IPAddress, error) {
-	currentCidr := ipaddr.NewIPAddressString(cidr6).GetAddress()
-	if !currentCidr.IsIPv6() {
-		return nil, fmt.Errorf("invalid IPv6 CIDR provided to GetLastAddr6")
-	}
-	upper := currentCidr.GetUpper()
-	return upper, nil
-}

logic/ips/ips_test.go

@@ -1,50 +0,0 @@
-package ips_test
-
-import (
-	"testing"
-
-	"github.com/gravitl/netmaker/logic/ips"
-	"github.com/stretchr/testify/assert"
-)
-
-func TestIp4(t *testing.T) {
-	const ipv4Cidr = "192.168.0.0/16"
-	const ipv6Cidr = "fde6:be04:fa5e:d076::/64"
-	//delete all current users
-	t.Run("Valid Ipv4", func(t *testing.T) {
-		_, err := ips.GetFirstAddr(ipv4Cidr)
-		assert.Nil(t, err)
-	})
-	t.Run("Invalid Ipv4", func(t *testing.T) {
-		_, err := ips.GetFirstAddr(ipv6Cidr)
-		assert.NotNil(t, err)
-	})
-	t.Run("Valid IPv6", func(t *testing.T) {
-		_, err := ips.GetFirstAddr6(ipv6Cidr)
-		assert.Nil(t, err)
-	})
-	t.Run("Invalid IPv6", func(t *testing.T) {
-		_, err := ips.GetFirstAddr6(ipv4Cidr)
-		assert.NotNil(t, err)
-	})
-	t.Run("Last IPv4", func(t *testing.T) {
-		addr, err := ips.GetLastAddr(ipv4Cidr)
-		assert.Nil(t, err)
-		assert.Equal(t, addr.GetNetIPAddr().IP.String(), "192.168.255.254")
-	})
-	t.Run("First IPv4", func(t *testing.T) {
-		addr, err := ips.GetFirstAddr(ipv4Cidr)
-		assert.Nil(t, err)
-		assert.Equal(t, addr.GetNetIPAddr().IP.String(), "192.168.0.1")
-	})
-	t.Run("Last IPv6", func(t *testing.T) {
-		last, err := ips.GetLastAddr6(ipv6Cidr)
-		assert.Nil(t, err)
-		assert.Equal(t, last.GetNetIPAddr().IP.String(), "fde6:be04:fa5e:d076:ffff:ffff:ffff:ffff")
-	})
-	t.Run("First IPv6", func(t *testing.T) {
-		first, err := ips.GetFirstAddr6(ipv6Cidr)
-		assert.Nil(t, err)
-		assert.Equal(t, first.GetNetIPAddr().IP.String(), "fde6:be04:fa5e:d076::1")
-	})
-}

logic/networks.go

@@ -8,11 +8,11 @@ import (
 	"os/exec"
 	"strings"
 
+	"github.com/c-robinson/iplib"
 	"github.com/go-playground/validator/v10"
 	"github.com/gravitl/netmaker/database"
 	"github.com/gravitl/netmaker/logger"
 	"github.com/gravitl/netmaker/logic/acls/nodeacls"
-	"github.com/gravitl/netmaker/logic/ips"
 	"github.com/gravitl/netmaker/models"
 	"github.com/gravitl/netmaker/netclient/ncutils"
 	"github.com/gravitl/netmaker/validation"
@@ -185,29 +185,30 @@ func UniqueAddress(networkName string, reverse bool) (string, error) {
 	if network.IsIPv4 == "no" {
 		return "", fmt.Errorf("IPv4 not active on network " + networkName)
 	}
-
-	newAddr, err := ips.GetFirstAddr(network.AddressRange)
-	if err != nil {
+	//ensure AddressRange is valid
+	if _, _, err := net.ParseCIDR(network.AddressRange); err != nil {
 		logger.Log(0, "UniqueAddress encountered  an error")
 		return "666", err
 	}
+	net4 := iplib.Net4FromStr(network.AddressRange)
+	newAddrs := net4.FirstAddress()
 
-	incVal := 1
 	if reverse {
-		incVal = -1
-		newAddr, err = ips.GetLastAddr(network.AddressRange)
-		if err != nil {
-			if err != nil {
-				logger.Log(0, "UniqueAddressServer encountered  an error")
-				return "666", err
-			}
-		}
+		newAddrs = net4.LastAddress()
 	}
 
-	for ; newAddr.ToAddressString().IsValid(); newAddr = newAddr.Increment(int64(incVal)) {
-		if IsIPUnique(networkName, newAddr.GetNetIPAddr().IP.String(), database.NODES_TABLE_NAME, false) &&
-			IsIPUnique(networkName, newAddr.GetNetIPAddr().IP.String(), database.EXT_CLIENT_TABLE_NAME, false) {
-			return newAddr.GetNetIPAddr().IP.String(), nil
+	for {
+		if IsIPUnique(networkName, newAddrs.String(), database.NODES_TABLE_NAME, false) &&
+			IsIPUnique(networkName, newAddrs.String(), database.EXT_CLIENT_TABLE_NAME, false) {
+			return newAddrs.String(), nil
+		}
+		if reverse {
+			newAddrs, err = net4.PreviousIP(newAddrs)
+		} else {
+			newAddrs, err = net4.NextIP(newAddrs)
+		}
+		if err != nil {
+			break
 		}
 	}
 
@@ -256,27 +257,30 @@ func UniqueAddress6(networkName string, reverse bool) (string, error) {
 		return "", fmt.Errorf("IPv6 not active on network " + networkName)
 	}
 
-	newAddr6, err := ips.GetFirstAddr6(network.AddressRange6)
-	if err != nil {
+	//ensure AddressRange is valid
+	if _, _, err := net.ParseCIDR(network.AddressRange6); err != nil {
 		return "666", err
 	}
+	net6 := iplib.Net6FromStr(network.AddressRange6)
+	newAddrs := net6.FirstAddress()
 
-	incVal := 1
 	if reverse {
-		incVal = -1
-		newAddr6, err = ips.GetLastAddr6(network.AddressRange6)
-		if err != nil {
-			if err != nil {
-				logger.Log(0, "UniqueAddress6Server encountered  an error")
-				return "666", err
-			}
-		}
+		newAddrs = net6.LastAddress()
 	}
 
-	for ; newAddr6.ToAddressString().IsValid(); newAddr6 = newAddr6.Increment(int64(incVal)) {
-		if IsIPUnique(networkName, newAddr6.GetNetIPAddr().IP.String(), database.NODES_TABLE_NAME, true) &&
-			IsIPUnique(networkName, newAddr6.GetNetIPAddr().IP.String(), database.EXT_CLIENT_TABLE_NAME, true) {
-			return newAddr6.GetNetIPAddr().IP.String(), nil
+	for {
+
+		if IsIPUnique(networkName, newAddrs.String(), database.NODES_TABLE_NAME, true) &&
+			IsIPUnique(networkName, newAddrs.String(), database.EXT_CLIENT_TABLE_NAME, true) {
+			return newAddrs.String(), nil
+		}
+		if reverse {
+			newAddrs, err = net6.PreviousIP(newAddrs)
+		} else {
+			newAddrs, err = net6.NextIP(newAddrs)
+		}
+		if err != nil {
+			break
 		}
 	}