check if ip has been used

src/server/api/routers/networkRouter.ts

@@ -50,6 +50,7 @@ export const networkRouter = createTRPCRouter({
  if (input.central) {
  return await ztController.get_controller_networks(ctx, input.central);
  }
+
  const networks = await ctx.prisma.network.findMany({
  where: {
  authorId: ctx.session.user.id,
@@ -138,7 +139,7 @@ export const networkRouter = createTRPCRouter({
  );
 
  // Generate CIDR options for IP configuration
- const { cidrOptions } = IPv4gen(null);
+ const { cidrOptions } = IPv4gen(null, []);
 
  /**
  * Merging logic to ensure that members who only exist in local database ( added manually ) are also included in the response
@@ -540,6 +541,7 @@ export const networkRouter = createTRPCRouter({
  // generate network params
  const { ipAssignmentPools, routes, v4AssignMode } = IPv4gen(
  input.updateParams.routes[0].target,
+ [],
  );
 
  // prepare update params

src/server/api/services/networkService.ts

@@ -45,9 +45,18 @@ export const networkProvisioningFactory = async ({ ctx, input }) => {
  );
  }
  }
+ // get used IPs from the database
+ const usedCidr = await ctx.prisma.network.findMany({
+ select: {
+ routes: true,
+ },
+ });
+ // Extract the target from the routes
+ const usedIPs = usedCidr.map((nw) => nw.routes?.map((r) => r.target));
 
+ // Flatten the array
  // Generate ipv4 address, cidr, start & end
- const ipAssignmentPools = IPv4gen(null);
+ const ipAssignmentPools = IPv4gen(null, usedIPs);
 
  if (!input?.name) {
  // Generate adjective and noun word
@@ -74,6 +83,7 @@ export const networkProvisioningFactory = async ({ ctx, input }) => {
  create: {
  name: newNw.name,
  nwid: newNw.nwid,
+ routes: ipAssignmentPools.routes,
  },
  },
  },

src/utils/IPv4gen.ts

@@ -23,12 +23,19 @@ const cidrOptions = [
  "172.25.30.0/24",
 ];
 
-const generateCidr = () => {
- return cidrOptions[Math.floor(Math.random() * cidrOptions.length)];
+// const generateCidr = () => {
+// return cidrOptions[Math.floor(Math.random() * cidrOptions.length)];
+// };
+const generateCidr = (usedCidr: string[][]) => {
+ // Flatten the usedCidr array
+ const flattenedUsedCidr = usedCidr.flat();
+
+ // Filter the available CIDRs
+ const availableCidr = cidrOptions.filter((cidr) => !flattenedUsedCidr.includes(cidr));
+ return availableCidr.length > 0 ? availableCidr[0] : cidrOptions[0];
 };
-
-export const IPv4gen = (CIDR: string | null) => {
- const cidr = CIDR ? CIDR : generateCidr();
+export const IPv4gen = (CIDR: string | null, usedCidr) => {
+ const cidr = CIDR ? CIDR : generateCidr(usedCidr);
 
  const [start, prefix] = cidr.split("/");
  const host32 = ((1 << (32 - parseInt(prefix))) - 1) >>> 0;