Feature/add iOS support (#1244)

* starting engine by passing file descriptor on engine start

* inject logger that does not compile

* logger and first client

* first working connection

* support for routes and working connection

* small refactor for better code quality in swift

* trying to add DNS

* fix

* updated

* fix route deletion

* trying to bind the DNS resolver dialer to an interface

* use dns.Client.Exchange

* fix metadata send on startup

* switching between client to query upstream

* fix panic on no dns response

* fix after merge changes

* add engine ready listener

* replace engine listener with connection listener

* disable relay connection for iOS until proxy is refactored into bind

* Extract private upstream for iOS and fix function headers for other OS

* Update mock Server

* Fix dns server and upstream tests

* Fix engine null pointer with mobile dependencies for other OS

* Revert back to disabling upstream on no response

* Fix some of the remarks from the linter

* Fix linter

* re-arrange duration calculation

* revert exported HostDNSConfig

* remove unused engine listener

* remove development logs

* refactor dns code and interface name propagation

* clean dns server test

* disable upstream deactivation for iOS

* remove files after merge

* fix dns server darwin

* fix server mock

* fix build flags

* move service listen back to initialize

* add wgInterface to hostManager initialization on android

* fix typo and remove unused function

* extract upstream exchange for ios and rest

* remove todo

* separate upstream logic to ios file

* Fix upstream test

* use interface and embedded struct for upstream

* set properly upstream client

* remove placeholder

* remove ios specific attributes

* fix upstream test

* merge ipc parser and wg configurer for mobile

* fix build annotation

* use json for DNS settings handover through gomobile

* add logs for DNS json string

* bring back check on ios for private upstream

* remove wrong (and unused) line

* fix wrongly updated comments on DNSSetting export

---------

Co-authored-by: Maycon Santos <mlsmaycon@gmail.com>

client/system/info.go

@@ -12,6 +12,12 @@ import (
 // DeviceNameCtxKey context key for device name
 const DeviceNameCtxKey = "deviceName"
 
+// OsVersionCtxKey context key for operating system version
+const OsVersionCtxKey = "OsVersion"
+
+// OsNameCtxKey context key for operating system name
+const OsNameCtxKey = "OsName"
+
 // Info is an object that contains machine information
 // Most of the code is taken from https://github.com/matishsiao/goInfo
 type Info struct {

client/system/info_darwin.go

@@ -1,3 +1,6 @@
+//go:build !ios
+// +build !ios
+
 package system
 
 import (

client/system/info_ios.go

@@ -0,0 +1,44 @@
+//go:build ios
+// +build ios
+
+package system
+
+import (
+	"context"
+	"runtime"
+
+	"github.com/netbirdio/netbird/version"
+)
+
+// GetInfo retrieves and parses the system information
+func GetInfo(ctx context.Context) *Info {
+
+	// Convert fixed-size byte arrays to Go strings
+	sysName := extractOsName(ctx, "sysName")
+	swVersion := extractOsVersion(ctx, "swVersion")
+
+	gio := &Info{Kernel: sysName, OSVersion: swVersion, Core: swVersion, Platform: "unknown", OS: sysName, GoOS: runtime.GOOS, CPUs: runtime.NumCPU()}
+	gio.Hostname = extractDeviceName(ctx, "hostname")
+	gio.WiretrusteeVersion = version.NetbirdVersion()
+	gio.UIVersion = extractUserAgent(ctx)
+
+	return gio
+}
+
+// extractOsVersion extracts operating system version from context or returns the default
+func extractOsVersion(ctx context.Context, defaultName string) string {
+	v, ok := ctx.Value(OsVersionCtxKey).(string)
+	if !ok {
+		return defaultName
+	}
+	return v
+}
+
+// extractOsName extracts operating system name from context or returns the default
+func extractOsName(ctx context.Context, defaultName string) string {
+	v, ok := ctx.Value(OsNameCtxKey).(string)
+	if !ok {
+		return defaultName
+	}
+	return v
+}