.vscode/c_cpp_properties.json

@@ -3,8 +3,9 @@
     {
       "name": "Mac",
       "includePath": [
-        "${workspaceFolder}/node_modules/node-addon-api",
         "/usr/local/include/node",
+        "/usr/local/lib/zig//libc/include/any-linux-any",
+        "${workspaceFolder}/node_modules/node-addon-api",
         "${workspaceFolder}/**",
         "${workspaceFolder}/addon"
       ],

addon/linux/wginterface.cpp

@@ -17,7 +17,7 @@ extern "C" {
 #include <netinet/in.h>
 #include <linux/netlink.h>
 #include <linux/rtnetlink.h>
-#include <malloc.h>
+// #include <malloc.h>
 #include <string.h>
 #include <iostream>
 
@@ -74,9 +74,9 @@ void WireguardConfig::getWireguardConfig() {
   else if (!(WireguardDevices().exist(this->name))) throw std::string("Wireguard interface not exist");
   int status; wg_device *devConfig; wg_peer *peer;
   if ((status = wg_get_device(&devConfig, this->name.c_str())) < 0) throw std::string("It was not possible to get the Wireguard interface settings, code: ").append(std::to_string(status));
-  if (devConfig->flags & WGDEVICE_HAS_PRIVATE_KEY) privateKey = wgKeys::toString(devConfig->private_key);
-  if (devConfig->flags & WGDEVICE_HAS_PUBLIC_KEY) publicKey = wgKeys::toString(devConfig->public_key);
-  if (devConfig->flags & WGDEVICE_HAS_LISTEN_PORT) portListen = devConfig->listen_port;
+  if (devConfig->flags & WGDEVICE_HAS_PRIVATE_KEY) this->privateKey = wgKeys::toString(devConfig->private_key);
+  if (devConfig->flags & WGDEVICE_HAS_PUBLIC_KEY) this->publicKey = wgKeys::toString(devConfig->public_key);
+  if (devConfig->flags & WGDEVICE_HAS_LISTEN_PORT) this->portListen = devConfig->listen_port;
   this->interfaceAddress.GetInInterface(this->name);
 
   for ((peer) = (devConfig)->first_peer; (peer); (peer) = (peer)->next_peer) {
@@ -291,48 +291,28 @@ typedef struct {
   __u32 data[8];
 } inet_prefix;
 
-
 // This function is to open the netlink socket as the name suggests.
-int netlink_open(struct rtnl_handle* rth) {
+void netlink_open(struct rtnl_handle* rth) {
   int addr_len;
   memset(rth, 0, sizeof(rth));
 
   // Creating the netlink socket of family NETLINK_ROUTE
 
   rth->fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
-  if (rth->fd < 0)
-  {
-    perror("cannot open netlink socket");
-    return -1;
-  }
+  if (rth->fd < 0) throw std::string("cannot open netlink socket");
   memset(&rth->local, 0, sizeof(rth->local));
   rth->local.nl_family = AF_NETLINK;
   rth->local.nl_groups = 0;
 
   // Binding the netlink socket
-  if (bind(rth->fd, (struct sockaddr*)&rth->local, sizeof(rth->local)) < 0)
-  {
-    perror("cannot bind netlink socket");
-    return -1;
-  }
+  if (bind(rth->fd, (struct sockaddr*)&rth->local, sizeof(rth->local)) < 0) throw std::string("cannot bind netlink socket");
+
   addr_len = sizeof(rth->local);
-  if (getsockname(rth->fd, (struct sockaddr*)&rth->local, (socklen_t*) &addr_len) < 0)
-  {
-    perror("cannot getsockname");
-    return -1;
-  }
-  if (addr_len != sizeof(rth->local))
-  {
-    fprintf(stderr, "wrong address lenght %d\n", addr_len);
-    return -1;
-  }
-  if (rth->local.nl_family != AF_NETLINK)
-  {
-    fprintf(stderr, "wrong address family %d\n", rth->local.nl_family);
-    return -1;
-  }
+  if (getsockname(rth->fd, (struct sockaddr*)&rth->local, (socklen_t*) &addr_len) < 0) throw std::string("cannot getsockname");
+  if (addr_len != sizeof(rth->local)) throw std::string("wrong address lenght").append(std::to_string(addr_len));
+  if (rth->local.nl_family != AF_NETLINK) throw std::string("wrong address family").append(std::to_string(rth->local.nl_family));
+
   rth->seq = time(NULL);
-  return 0;
 }
 
 // This function does the actual reading and writing to the netlink socket
@@ -352,12 +332,10 @@ int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer, unsigned
   nladdr.nl_pid = peer;
   nladdr.nl_groups = groups;
   n->nlmsg_seq = ++rtnl->seq;
-  if (answer == NULL)
-    n->nlmsg_flags |= NLM_F_ACK;
+  if (answer == NULL) n->nlmsg_flags |= NLM_F_ACK;
   // Actual sending of the message, status contains success/failure
-  status = sendmsg(rtnl->fd, &msg, 0);
-  if (status < 0)
-    return -1;
+  return sendmsg(rtnl->fd, &msg, 0);
+  // if (status < 0) return -1;
 }
 
 // This is the utility function for adding the parameters to the packet.
@@ -375,101 +353,30 @@ int addattr_l(struct nlmsghdr *n, int maxlen, int type, void *data, int alen) {
   return 0;
 }
 
-
-int get_addr_1(inet_prefix *addr, const char *name, int family) {
-  memset(addr, 0, sizeof(*addr));
-
-  if (strcmp(name, "default") == 0 ||
-      strcmp(name, "all") == 0 ||
-      strcmp(name, "any") == 0) {
-    if (family == AF_DECnet)
-      return -1;
-    addr->family = family;
-    addr->bytelen = (family == AF_INET6 ? 16 : 4);
-    addr->bitlen = -1;
-    return 0;
-  }
-
-  if (strchr(name, ':')) {
-    addr->family = AF_INET6;
-    if (family != AF_UNSPEC && family != AF_INET6)
-      return -1;
-    if (inet_pton(AF_INET6, name, addr->data) <= 0)
-      return -1;
-    addr->bytelen = 16;
-    addr->bitlen = -1;
-    return 0;
-  }
-
-
-  addr->family = AF_INET;
-  if (family != AF_UNSPEC && family != AF_INET)
-    return -1;
-
-  struct in_addr inAddr;
-  inet_pton(AF_INET, name, (void*)&inAddr);
-  memcpy(&addr->data,&inAddr.s_addr, sizeof(inAddr.s_addr));
-
-//  if (get_addr_ipv4((__u8 *)addr->data, name) <= 0)
-//    return -1;
-
-  addr->bytelen = 4;
-  addr->bitlen = -1;
-  return 0;
-}
-
-int get_prefix(inet_prefix *dst, char *arg, int family) {
-  int err;
-  unsigned plen;
-
-  memset(dst, 0, sizeof(*dst));
-
-  if (strcmp(arg, "default") == 0 ||
-      strcmp(arg, "any") == 0 ||
-      strcmp(arg, "all") == 0) {
-    if (family == AF_DECnet)
-      return -1;
-    dst->family = family;
-    dst->bytelen = 0;
-    dst->bitlen = 0;
-    return 0;
-  }
-
-  err = get_addr_1(dst, arg, family);
-  if (err == 0) {
-    switch(dst->family) {
-      case AF_INET6:
-        dst->bitlen = 128;
-        break;
-      case AF_DECnet:
-        dst->bitlen = 16;
-        break;
-      default:
-      case AF_INET:
-        dst->bitlen = 32;
-    }
-  }
-  return err;
-}
-
 void IpManeger::SetInInterface(std::string interfaceName) {
   if (this->size() == 0) return;
   if (!(WireguardDevices().exist(interfaceName))) throw std::string("Wireguard interface not exists!");
-  int status; unsigned int ifa_index; wg_device *devConfig;;
+  int status;
+  unsigned int ifa_index;
+  wg_device *devConfig;
+
   if ((status = wg_get_device(&devConfig, interfaceName.c_str())) < 0) throw std::string("It was not possible to get the Wireguard interface settings, code: ").append(std::to_string(status));
+
   ifa_index = devConfig->ifindex;
   free(devConfig);
 
-  struct rtnl_handle * rth;
-  rth = (rtnl_handle*)malloc(sizeof(rtnl_handle));
-  netlink_open(rth);
   for (const auto ip : this->getIpParsed()) {
+    struct rtnl_handle * rth;
+    rth = (rtnl_handle*)malloc(sizeof(rtnl_handle));
+    netlink_open(rth);
+    int err;
     inet_prefix lcl;
+
     // structure of the netlink packet.
     struct {
-      struct nlmsghdr     n;
-      struct ifaddrmsg    ifa;
-      char            buf[1024];
+      struct nlmsghdr n;
+      struct ifaddrmsg ifa;
+      char buf[1024];
     } req;
 
     memset(&req, 0, sizeof(req));
@@ -480,14 +387,18 @@ void IpManeger::SetInInterface(std::string interfaceName) {
     req.ifa.ifa_family = ip.Proto == 4 ? AF_INET : AF_INET6;
     req.ifa.ifa_prefixlen = ip.Mask;
     req.ifa.ifa_index = ifa_index ; // get the loopback index
-    req.ifa.ifa_scope = 0 ;
+    req.ifa.ifa_scope = 0;
+
+    memset(&lcl, 0, sizeof(lcl));
+    lcl.family = req.ifa.ifa_family;
+    lcl.bytelen = (req.ifa.ifa_family == AF_INET) ? 4 : 16;
+    lcl.bitlen = (req.ifa.ifa_family == AF_INET) ? 32 : 128;
+
+    if (inet_pton(req.ifa.ifa_family, ip.Address.c_str(), &lcl.data) <= 0) throw std::string("Invalid IP address: ").append(ip.Address);
 
-    get_prefix(&lcl, ip.Address.c_str(), req.ifa.ifa_family);
     if (req.ifa.ifa_family == AF_UNSPEC) req.ifa.ifa_family = lcl.family;
 
-    struct in_addr inAddr;
-    inet_pton(req.ifa.ifa_family, ip.Address.c_str(), (void*)&inAddr);
-    addattr_l(&req.n, sizeof(req), IFA_LOCAL, &inAddr, sizeof(inAddr));
-    if (rtnl_talk(rth, &req.n, 0, 0, NULL) < 0); //throw std::string("Cannot set interface ip!");
+    addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
+    if ((err = rtnl_talk(rth, &req.n, 0, 0, NULL)) < 0) throw std::string("Cannot set interface IP, code: ").append(std::to_string(err));
   }
 }

addon/wg.hh

@@ -155,9 +155,9 @@ class GetConfig : public WireguardConfig, public Promised {
       if (config.keepInterval >= 0) peerConfig.Set("keepInterval", config.keepInterval);
       if (config.endpoint.length() > 0) peerConfig.Set("endpoint", config.endpoint);
 
-      peerConfig.Set("lastHandshake", Napi::Date::New(env, config.lastHandshake));
       peerConfig.Set("rxBytes", Napi::BigInt::New(env, (uint64_t)config.rxBytes));
       peerConfig.Set("txBytes", Napi::BigInt::New(env, (uint64_t)config.txBytes));
+      peerConfig.Set("lastHandshake", Napi::Date::New(env, config.lastHandshake));
 
       const Napi::Array ips = Napi::Array::New(env);
       for (auto &ip : config.allowedIPs) ips.Set(ips.Length(), ip);

src/wginterface.ts

@@ -74,7 +74,7 @@ const addon = (await loadAddon(path.resolve(__dirname, "../binding.yaml"))).wgin
 
   /** Kernel wireguard version */
   driveVersion?: string;
-  deleteInterface(name: string): Promise<GetConfig>;
+  deleteInterface(name: string): Promise<void>;
   listDevices(): Promise<string[]>;
   getConfig(name: string): Promise<GetConfig>;
   setConfig(config: SetConfig): Promise<void>;

src/wginterface_test.ts

@@ -23,7 +23,20 @@ await test("Wireguard interface", async t => {
     ]
   };
 
-  await Kernel.setConfig(config);
-  console.dir(await Kernel.getConfig(config.name), { depth: null });
-  await Kernel.deleteInterface(config.name);
+  const peer2 = await privateKey();
+  config.peers[publicKey(peer2)] = {
+    keepInterval: 0,
+    allowedIPs: [
+      "10.66.66.3/32"
+    ]
+  };
+
+  let skip: string;
+  await t.test("Create and Set config in interface", async () => Kernel.setConfig(config).catch(err => { skip = "Cannot set wireguard config"; return Promise.reject(err); }));
+  await t.test("Get config from interface", { skip }, async () => {
+    const fromInterface = await Kernel.getConfig(config.name);
+    console.dir(fromInterface, { depth: null });
+  });
+
+  // await t.test("Delete interface if exists", { skip }, async () => Kernel.deleteInterface(config.name));
 });