add stuff

root/scripts/tv/start_sshd.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+# /3rd_rw/sshd/start_sshd.sh
+# Starts Dropbear with key-only auth. Also re-creates the runtime bind mounts:
+#   /etc/passwd -> /3rd_rw/sshd/etc_passwd  (root home -> /3rd_rw/sshd/home)
+#   /dev/pts    -> devpts on /dev/shm/pts   (PTY workaround; /dev is static ro)
+# Must run as root. Idempotent.
+PATH=/bin:/sbin:/usr/bin:/usr/sbin:/basic/bin
+export PATH
+mkdir -p /3rd_rw/sshd
+
+# 1) passwd bind mount (root home must be writable for ~/.ssh/authorized_keys)
+if ! grep -q '^root:x:0:0:root:/3rd_rw/sshd/home:' /etc/passwd 2>/dev/null; then
+  mount --bind /3rd_rw/sshd/etc_passwd /etc/passwd 2>>/3rd_rw/sshd/mount.log \
+    || mount -o bind /3rd_rw/sshd/etc_passwd /etc/passwd 2>>/3rd_rw/sshd/mount.log
+fi
+
+# 2) PTY: /dev is a static ro squashfs, no devtmpfs. Mount devpts on tmpfs
+#    and bind it over /dev/pts. /dev/ptmx (5,2) remains the static node.
+mkdir -p /dev/shm/pts
+if ! grep -q ' /dev/shm/pts ' /proc/mounts; then
+  mount -t devpts -o mode=620,ptmxmode=666,gid=5 devpts /dev/shm/pts 2>>/3rd_rw/sshd/mount.log \
+    || mount -t devpts devpts /dev/shm/pts 2>>/3rd_rw/sshd/mount.log
+fi
+if ! grep -q ' /dev/pts ' /proc/mounts; then
+  mount --bind /dev/shm/pts /dev/pts 2>>/3rd_rw/sshd/mount.log
+fi
+
+# 3) already running?
+if [ -f /3rd_rw/sshd/dropbear.pid ]; then
+  PID=$(cat /3rd_rw/sshd/dropbear.pid)
+  if kill -0 "$PID" 2>/dev/null && grep -q dropbear "/proc/$PID/cmdline" 2>/dev/null; then
+    exit 0
+  fi
+  rm -f /3rd_rw/sshd/dropbear.pid
+fi
+
+# 4) start key-only Dropbear (password auth is disabled at build time)
+/3rd_rw/sshd/dropbear -r /3rd_rw/sshd/host_key -p 22 \
+  -P /3rd_rw/sshd/dropbear.pid -E >> /3rd_rw/sshd/dropbear.log 2>&1 &