From fa05a5f8238e9e1417235711656e5062ccc843a7 Mon Sep 17 00:00:00 2001
From: "info@mode42.com" <info@mode42.com>
Date: Fri, 7 Aug 2026 18:23:28 +0000
Subject: Initial push

---
 scripts/run-max25d.sh | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100755 scripts/run-max25d.sh

(limited to 'scripts/run-max25d.sh')

diff --git a/scripts/run-max25d.sh b/scripts/run-max25d.sh
new file mode 100755
index 0000000..232caf4
--- /dev/null
+++ b/scripts/run-max25d.sh
@@ -0,0 +1,99 @@
+#!/usr/bin/env bash
+# Canonical max25d start — escalate to root only when hardware needs it.
+# Works from source tree (scripts/) and from PREFIX/bin after install.
+# Root needed: ttyS / USB serial / ioperm / /dev/port / max25-bcpr SER12 (max25e0).
+# Escalation: already root → sudo -n → sudo → su → pkexec.
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+if [[ -x "${SCRIPT_DIR}/max25d" && ! -d "${SCRIPT_DIR}/../stacks/daemon" ]]; then
+  DAEMON="${SCRIPT_DIR}/max25d"
+  TREE=""
+else
+  TREE="$(cd "${SCRIPT_DIR}/.." && pwd)"
+  DAEMON="${TREE}/stacks/daemon/max25d"
+fi
+
+if [[ ! -x "$DAEMON" ]]; then
+  echo "run-max25d: missing $DAEMON" >&2
+  exit 1
+fi
+
+# Match real daemon only (not agent shells whose argv text mentions max25d).
+if pgrep -x max25d >/dev/null 2>&1 \
+   || pgrep -f -- '/max25d(\.py)?[[:space:]]+-c[[:space:]]' >/dev/null 2>&1; then
+  echo "run-max25d: max25d already running" >&2
+  pgrep -af -- '/max25d(\.py)?[[:space:]]+-c[[:space:]]' | head -5 || true
+  pgrep -ax max25d | head -5 || true
+  ls -la /run/max25/modem.sock /var/run/max25/modem.sock 2>/dev/null \
+    || echo "run-max25d: WARNING no modem.sock under /run/max25 or /var/run/max25" >&2
+  exit 0
+fi
+
+# Accept path or max25d-style "-c path".
+INI="${1:-}"
+if [[ "$INI" == "-c" || "$INI" == "--config" ]]; then
+  INI="${2:-}"
+fi
+if [[ -z "$INI" ]]; then
+  if [[ -n "$TREE" && -f "${TREE}/local/max25d.ini" ]]; then
+    INI="${TREE}/local/max25d.ini"
+  elif [[ -f "${PWD}/local/max25d.ini" ]]; then
+    INI="${PWD}/local/max25d.ini"
+  elif [[ -f /etc/max25/max25d.ini ]]; then
+    INI=/etc/max25/max25d.ini
+  elif [[ -f /usr/local/etc/max25/max25d.ini ]]; then
+    INI=/usr/local/etc/max25/max25d.ini
+  else
+    echo "run-max25d: no INI (pass path or create local/max25d.ini / /etc/max25/max25d.ini / /usr/local/etc/max25/max25d.ini)" >&2
+    exit 1
+  fi
+fi
+if [[ ! -f "$INI" ]]; then
+  echo "run-max25d: INI not found: $INI" >&2
+  exit 1
+fi
+
+needs_root() {
+  local f="$1"
+  [[ -f "$f" ]] || return 1
+  if grep -Eiq '^[[:space:]]*(max25[-_]bcpr|bcpr|baycom|pccom)[[:space:]]*=[[:space:]]*yes' "$f"; then return 0; fi
+  if grep -Eiq '^[[:space:]]*(max25e0|max25e0:bc[01]|tnc2c|pktnc2|baycom-kiss|pccom-kiss)[[:space:]]*=' "$f"; then return 0; fi
+  if grep -Eiq '^[[:space:]]*device[[:space:]]*=[[:space:]]*(max25e0|tnc2c|pktnc2)' "$f"; then return 0; fi
+  if grep -Eqi '/dev/(ttyS|ttyUSB|ttyACM|port)\b' "$f"; then return 0; fi
+  if grep -Eiq '^[[:space:]]*unix_socket[[:space:]]*=[[:space:]]*/(var/)?run/max25/' "$f"; then return 0; fi
+  return 1
+}
+
+if [[ "$(id -u)" -ne 0 ]]; then
+  if needs_root "$INI"; then
+    if command -v sudo >/dev/null 2>&1; then
+      if sudo -n true 2>/dev/null; then
+        echo "run-max25d: hardware path — escalating via sudo -n" >&2
+        exec sudo -n "$0" "$INI"
+      fi
+      echo "run-max25d: hardware path — escalating via sudo (password may be required)" >&2
+      exec sudo "$0" "$INI"
+    fi
+    if command -v su >/dev/null 2>&1; then
+      echo "run-max25d: hardware path — escalating via su" >&2
+      exec su -c "$(printf '%q ' "$0" "$INI")"
+    fi
+    if command -v pkexec >/dev/null 2>&1; then
+      echo "run-max25d: hardware path — escalating via pkexec" >&2
+      exec pkexec "$0" "$INI"
+    fi
+    echo "run-max25d: PC-COM or serial hardware needs admin — run: sudo $0 $INI" >&2
+    exit 1
+  fi
+  echo "run-max25d: starting unprivileged (uid=$(id -u))" >&2
+else
+  echo "run-max25d: running as root (uid=0)" >&2
+fi
+
+if [[ "$(id -u)" -eq 0 ]]; then
+  mkdir -p /run/max25 /var/run/max25
+fi
+echo "run-max25d: ini=$INI"
+exec "$DAEMON" -c "$INI"
-- 
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