ip in ns

main.go

@@ -4,9 +4,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net"
-	//"os"
 	"path/filepath"
-	//"strings"
 
 	"github.com/charmbracelet/lipgloss"
 	"github.com/vishvananda/netlink"
@@ -22,14 +20,15 @@ func main() {
 	addrStyle := lipgloss.NewStyle().Faint(true)
 	infoStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("33"))
 
-	// Save the current netns
+	// Save the current namespace
 	origNS, err := netns.Get()
 	if err != nil {
-		fmt.Println("Error getting current netns:", err)
+		fmt.Println("Error getting current namespace:", err)
 		return
 	}
 	defer origNS.Close()
 
+	// Get all links in the current namespace
 	links, err := netlink.LinkList()
 	if err != nil {
 		fmt.Println("Error listing links:", err)
@@ -52,7 +51,7 @@ func main() {
 		fmt.Printf(addrStyle.Render(" %d"), attrs.MTU)
 		fmt.Printf(" %s\n", state)
 
-		// IP addresses (IPv4 only)
+		// IPv4 only
 		addrs, err := netlink.AddrList(link, unix.AF_INET)
 		if err == nil {
 			for _, addr := range addrs {
@@ -67,21 +66,7 @@ func main() {
 
 		fmt.Println("  ", infoStyle.Render("Veth interface"))
 
-		// Try to find peer locally
 		peerFound := false
-		for _, other := range links {
-			if other.Attrs().Index == attrs.Index {
-				continue
-			}
-			if other.Type() == "veth" && other.Attrs().ParentIndex == attrs.Index {
-				fmt.Println("  ", infoStyle.Render("Likely peer:"), other.Attrs().Name)
-				peerFound = true
-				break
-			}
-		}
-
-		// If not found, scan /var/run/netns/
-		if !peerFound {
 		netnsDir := "/var/run/netns/"
 		entries, err := ioutil.ReadDir(netnsDir)
 		if err != nil {
@@ -105,11 +90,21 @@ func main() {
 					for _, rl := range remoteLinks {
 						if rl.Type() == "veth" && rl.Attrs().ParentIndex == attrs.Index {
 							fmt.Println("  ", infoStyle.Render("Peer in namespace:"), entry.Name(), "as", rl.Attrs().Name)
+
+							// Get peer IPs inside this namespace
+							peerAddrs, err := netlink.AddrList(rl, unix.AF_INET)
+							if err == nil {
+								for _, pa := range peerAddrs {
+									fmt.Println("     ", ipStyle.Render(pa.IPNet.String()))
+								}
+							}
+
 							peerFound = true
 							break
 						}
 					}
 				}
+
 				nsHandle.Close()
 				netns.Set(origNS)
 
@@ -118,7 +113,6 @@ func main() {
 				}
 			}
 		}
-		}
 
 		if !peerFound {
 			fmt.Println("  ", infoStyle.Render("Peer not found — may be deleted or hidden"))