ipam is functioning with the basics =)

.gitignore

@@ -21,7 +21,7 @@
 go.work
 
 # build output
-output/
+bin/
 
 # vs code stuff
 .vscode/

Makefile

@@ -0,0 +1,14 @@
+OUTPUT_FOLDER=bin
+FILENAME=ipam
+
+all: build
+ 
+build:
+	go build -o ${OUTPUT_FOLDER}/${FILENAME} main.go
+
+install:
+	cp ${OUTPUT_FOLDER}/${FILENAME} /usr/local/bin/${FILENAME}
+
+clean:
+	go clean
+	rm -r ${OUTPUT_FOLDER}/

README.md

@@ -1,3 +1,28 @@
 # ipam
 
 This project is in development. There is no working version yet!
+
+## CLI
+```
+❯ ipam
+A cli based ipam.
+You can manage subnets, single ip addresses within those, and the corresponding A records.
+PowerDNS and IPV6-Support will follow
+
+Usage:
+  ipam [command]
+
+Available Commands:
+  completion  Generate the autocompletion script for the specified shell
+  export      Export current ipam configuration (not implemented)
+  help        Help about any command
+  import      Import ipam configuration (not implemented)
+  ip          manage ip addresses
+  subnet      Manage ip subnets
+
+Flags:
+  -d, --debug   Enable debug mode. (may print sensitive Information, so please watch out!)
+  -h, --help    help for ipam
+
+Use "ipam [command] --help" for more information about a command.
+```

cmd/classes.go

@@ -5,6 +5,7 @@ Copyright © 2023 Laura Kalb <dev@lauka.net>
 package cmd
 
 import (
+	"errors"
 	"net/netip"
 )
 
@@ -29,12 +30,42 @@ func (s Subnet) HasIP(ip netip.Addr) bool {
 	return iscontained
 }
 
-func (s Subnet) RemoveIP(ip netip.Addr) bool {
-	return true
+// RemoveIP removes the Address object for given ip from
+// the Address list of the subnet.
+//
+// Returns the changed Subnet and nil if delete was
+// successful, or an empty Subnet and an error if
+// ip could not be deleted.
+func (s Subnet) RemoveIP(ip netip.Addr) (Subnet, error) {
+	var addrlist []Address
+
+	if !s.HasIP(ip) {
+
+		return Subnet{}, errors.New("IP " + ip.String() + " wasn't found in subnet " + s.Subnet.String())
+	}
+
+	for _, item := range s.Addresses {
+		if item.IP.Compare(ip) != 0 {
+			addrlist = append(addrlist, item)
+		}
+	}
+	s.Addresses = addrlist
+	return s, nil
 }
 
-func (s Subnet) GetIP(ip netip.Addr) bool {
-	return true
+// GetIP returns the Address object for the subnet with
+// netip.Addr ip.
+//
+// Returns the Address object and true if a corresponding
+// object was found, an empty Address and false otherwise.
+func (s Subnet) GetIP(ip netip.Addr) (Address, bool) {
+	for _, item := range s.Addresses {
+		if item.IP.Compare(ip) == 0 {
+			return item, true
+		}
+	}
+
+	return Address{}, false
 }
 
 type Address struct {

cmd/ip-add.go

@@ -44,7 +44,7 @@ var ipaddCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
-		subnet, subnetexists := SearchBestSubnet(ip)
+		subnet, subnetexists := FindBestSubnet(ip)
 
 		if !subnetexists {
 			fmt.Printf("[ERROR] Found no suitable subnet for IP %v\n", ipaddress)

cmd/ip-delete.go

@@ -4,6 +4,10 @@ Copyright © 2023 Laura Kalb <dev@lauka.net>
 package cmd
 
 import (
+	"fmt"
+	"net/netip"
+	"os"
+
 	"github.com/spf13/cobra"
 )
 
@@ -16,6 +20,38 @@ var ipdeleteCmd = &cobra.Command{
 	Args:    cobra.ExactArgs(1),
 	Example: "ipam ip delete 192.168.0.1",
 	Run: func(cmd *cobra.Command, args []string) {
+		ip, parseerr := netip.ParseAddr(args[0])
+
+		if parseerr != nil {
+			fmt.Println("[ERROR]", parseerr)
+			os.Exit(1)
+		}
+
+		subnet, subnetexists := FindBestSubnet(ip)
+		if !subnetexists {
+			fmt.Printf("[ERROR] Couldn't find IP %v\n", ip.String())
+			os.Exit(1)
+		}
+
+		address, _ := subnet.GetIP(ip)
+
+		subnet, removeerr := subnet.RemoveIP(ip)
+		if removeerr != nil {
+			fmt.Println("[ERROR]", removeerr)
+			os.Exit(1)
+		}
+
+		writeerr := WriteSubnet(subnet)
+		if writeerr != nil {
+			fmt.Println("[ERROR]", writeerr)
+			os.Exit(1)
+		}
+
+		if address.FQDN == "" {
+			fmt.Printf("deleted ip %v\n", address.IP.String())
+		} else {
+			fmt.Printf("deleted ip %v (%v)\n", address.IP.String(), address.FQDN)
+		}
 	},
 }
 

cmd/ip-edit.go

@@ -16,7 +16,7 @@ var ipeditCmd = &cobra.Command{
 	Aliases: []string{"e"},
 	Args:    cobra.ExactArgs(1),
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("edit called")
+		fmt.Println("not implemented yet; please delete and readd")
 	},
 }
 

cmd/ip-show.go

@@ -5,6 +5,8 @@ package cmd
 
 import (
 	"fmt"
+	"net/netip"
+	"os"
 
 	"github.com/spf13/cobra"
 )
@@ -16,8 +18,30 @@ var ipshowCmd = &cobra.Command{
 	Long:    `Show IP and associated name`,
 	Aliases: []string{"s"},
 	Args:    cobra.ExactArgs(1),
+	Example: "ipam ip show 192.168.0.1",
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("ip show called")
+		ip, parseerr := netip.ParseAddr(args[0])
+
+		if parseerr != nil {
+			fmt.Println("[ERROR]", parseerr)
+			os.Exit(1)
+		}
+
+		subnet, subnetexists := FindBestSubnet(ip)
+		if !subnetexists {
+			fmt.Printf("[ERROR] Couldn't find IP %v\n", ip.String())
+			os.Exit(1)
+		}
+
+		addr, addrexists := subnet.GetIP(ip)
+		if !addrexists {
+			fmt.Printf("[ERROR] Couldn't find IP %v\n", ip.String())
+			os.Exit(1)
+		}
+
+		fmt.Printf("IP:       %v\n", ip.String())
+		fmt.Printf("FQDN:     %v\n", addr.FQDN)
+		fmt.Printf("Subnet:   %v (%v)\n", subnet.Subnet.String(), subnet.Name)
 	},
 }
 

cmd/powerdns.go

@@ -0,0 +1,5 @@
+/*
+Copyright © 2023 Laura Kalb <dev@lauka.net>
+*/
+
+package cmd