From 4b2b899259f9c2d4d4c6bdfa729608fb6563f2d0 Mon Sep 17 00:00:00 2001
From: arul <arulbalaji00@tutamail.com>
Date: Tue, 14 Oct 2025 20:23:46 +0530
Subject: [PATCH] Patch Fix for wpa blocked by Network Manager

---
 patch-fix-disconnect | 100 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100755 patch-fix-disconnect

diff --git a/patch-fix-disconnect b/patch-fix-disconnect
new file mode 100755
index 0000000..47f40ea
--- /dev/null
+++ b/patch-fix-disconnect
@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+# patch_hotspot_apmode.sh
+# Make wlan0 persistent AP-mode and ensure hostapd can use it.
+# Run as root: sudo ./patch_hotspot_apmode.sh
+
+set -euo pipefail
+
+AP_IF="wlan0"
+NM_CONF="/etc/NetworkManager/conf.d/unmanaged-wlan0.conf"
+UDEV_RULE="/etc/udev/rules.d/90-wlan0-apmode.rules"
+IW_PATH="$(command -v iw || true)"
+
+if [ "$(id -u)" -ne 0 ]; then
+  echo "Please run as root (sudo)."
+  exit 2
+fi
+
+echo "== patch_hotspot_apmode: starting =="
+echo
+
+# 1) Tell NetworkManager to ignore wlan0 (idempotent)
+if [ -f "$NM_CONF" ] && grep -q "interface-name:${AP_IF}" "$NM_CONF"; then
+  echo "[+] NetworkManager already configured to ignore $AP_IF ($NM_CONF)"
+else
+  echo "[*] Writing NetworkManager unmanaged conf -> $NM_CONF"
+  mkdir -p "$(dirname "$NM_CONF")"
+  cat > "$NM_CONF" <<EOF
+[keyfile]
+unmanaged-devices=interface-name:$AP_IF
+EOF
+  echo "[*] Restarting NetworkManager..."
+  systemctl restart NetworkManager || true
+fi
+
+# 2) Create udev rule to set wlan0 to AP mode when added (idempotent)
+if [ -f "$UDEV_RULE" ] && grep -q "iw $AP_IF set type ap" "$UDEV_RULE"; then
+  echo "[+] udev rule already exists -> $UDEV_RULE"
+else
+  echo "[*] Writing udev rule -> $UDEV_RULE"
+  cat > "$UDEV_RULE" <<EOF
+ACTION=="add", SUBSYSTEM=="net", KERNEL=="$AP_IF", RUN+="${IW_PATH:-/usr/sbin/iw} $AP_IF set type ap"
+EOF
+  echo "[*] Reloading udev rules..."
+  udevadm control --reload-rules || true
+  udevadm trigger --action=add --subsystem-match=net || true
+fi
+
+# 3) Stop services/processes that may hold wlan0 right now
+echo "[*] Stopping services that might grab $AP_IF (NetworkManager, wpa_supplicant) for the moment..."
+systemctl stop NetworkManager || true
+# Try stopping wpa_supplicant systemd instance for the iface, but tolerate failure
+systemctl stop "wpa_supplicant@${AP_IF}.service" >/dev/null 2>&1 || true
+# Kill any lingering wpa_supplicant processes bound to the interface
+pkill -f "wpa_supplicant.*${AP_IF}" >/dev/null 2>&1 || true
+
+# 4) Force interface down -> ap mode -> up (immediate)
+if [ -z "$IW_PATH" ]; then
+  echo "[!] 'iw' command not found. Please install 'iw' and re-run this script."
+  exit 3
+fi
+
+echo "[*] Forcing $AP_IF to AP mode now..."
+ip link set "$AP_IF" down || true
+# set type ap (if already ap this is harmless)
+$IW_PATH "$AP_IF" set type ap || {
+  echo "[!] Failed to set $AP_IF to AP via iw. Check driver support (iw list)."
+  # continue so hostapd restart attempt still happens
+}
+ip link set "$AP_IF" up || true
+
+# 5) Restart hostapd + dnsmasq (so hostapd binds to AP-mode iface)
+echo "[*] Starting hostapd and dnsmasq (or restarting if already running)..."
+systemctl unmask hostapd >/dev/null 2>&1 || true
+systemctl restart hostapd || echo "[!] hostapd restart returned non-zero (check sudo journalctl -u hostapd)"
+systemctl restart dnsmasq || echo "[!] dnsmasq restart returned non-zero (check sudo journalctl -u dnsmasq)"
+
+# 6) Re-enable NetworkManager (but it will ignore wlan0 now)
+echo "[*] Re-enabling NetworkManager (it should ignore $AP_IF per conf)..."
+systemctl start NetworkManager || true
+
+# 7) Persist iptables if netfilter-persistent exists
+if command -v netfilter-persistent >/dev/null 2>&1; then
+  echo "[*] Saving iptables rules via netfilter-persistent..."
+  netfilter-persistent save || echo "[!] netfilter-persistent save failed (check rules)"
+else
+  echo "[*] netfilter-persistent not installed; skipping iptables save."
+fi
+
+# 8) Final status + verification commands
+echo
+echo "== done =="
+echo "Quick checks you can run now:"
+echo "  iw dev"
+echo "  sudo systemctl status hostapd dnsmasq NetworkManager"
+echo "  sudo journalctl -u hostapd -n 50"
+echo
+echo "If you reboot, udev will attempt to set $AP_IF to AP mode automatically and NetworkManager will ignore $AP_IF."
+echo "If anything goes wrong, paste the output of: sudo journalctl -u hostapd -n 100"
+echo
+