From fdadef7025d56a27c34102cf226b3df2ae909b8e Mon Sep 17 00:00:00 2001
From: Guilherme Rugai Freire <dev@grfreire.com>
Date: Thu, 8 Feb 2024 02:41:45 -0300
Subject: [PATCH] add inspect command

the inspect command is a simple wrapper arround `ss -tup`, which shows
all processes running in a given net namespace
---
 README.md            | 3 +++
 split-vpn-manager.sh | 9 +++++++++
 2 files changed, 12 insertions(+)

diff --git a/README.md b/README.md
index bfaf532..a6bba14 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,9 @@ Usage:
   ./split-vpn-manager.sh run NETNS_NAME CMD
       runs a command in the specified net namespace
 
+  ./split-vpn-manager.sh inspect NETNS_NAME
+      list all processes using TCP/UDP sockets inside the specified net namespace
+
 NOTE: Always run this script with privileged permissions (currently not)
 ```
 
diff --git a/split-vpn-manager.sh b/split-vpn-manager.sh
index 6e5f608..b6f153b 100755
--- a/split-vpn-manager.sh
+++ b/split-vpn-manager.sh
@@ -140,6 +140,10 @@ run() {
     exit $EXIT_SUCCESS
 }
 
+inspect() {
+    run $1 ss -tup
+}
+
 help() {
     echo "Usage:"
     echo "  $0 launch_openvpn --name NETNS_NAME --config CONFIG_FILE --auth AUTH_FILE"
@@ -148,6 +152,9 @@ help() {
     echo "  $0 run NETNS_NAME CMD"
     echo "      runs a command in the specified net namespace"
     echo ""
+    echo "  $0 inspect NETNS_NAME"
+    echo "      list all processes using TCP/UDP sockets inside the specified net namespace"
+    echo ""
 
     user_id="$(id -u)"
     if [ "$user_id" -ne 0 ]; then
@@ -168,6 +175,8 @@ case "$command" in
         down_netns "$@";;
     run)
         run "$@";;
+    inspect)
+        inspect "$@";;
     help|--help)
         help;;
     *)