From bcc5f7eb90feccd1e4b1d2058ea5205bcccf450c Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sat, 23 May 2020 20:04:45 -0700
Subject: Initial commit.

---
 META-INF/com/google/android/update-binary  | 23 +++++++++++++++++++++++
 META-INF/com/google/android/updater-script |  1 +
 customize.sh                               | 13 +++++++++++++
 module.prop                                |  6 ++++++
 service.sh                                 | 13 +++++++++++++
 ssh/sshd_config                            |  5 +++++
 6 files changed, 61 insertions(+)
 create mode 100755 META-INF/com/google/android/update-binary
 create mode 100755 META-INF/com/google/android/updater-script
 create mode 100644 customize.sh
 create mode 100644 module.prop
 create mode 100755 service.sh
 create mode 100644 ssh/sshd_config

diff --git a/META-INF/com/google/android/update-binary b/META-INF/com/google/android/update-binary
new file mode 100755
index 0000000..3d2e088
--- /dev/null
+++ b/META-INF/com/google/android/update-binary
@@ -0,0 +1,23 @@
+#!/system/bin/sh
+
+umask 022
+
+OUTFD="$2"
+ZIPFILE="$3"
+
+echo "OUTFD=$OUTFD"
+echo "ZIPFILE=$ZIPFILE"
+
+ui_print() { echo "$*"; }
+
+set -x
+
+mount /data 2>/dev/null
+
+source /data/adb/magisk/util_functions.sh
+
+ui_print "Verifying that Magisk is new enough"
+[ "$MAGISK_VER_CODE" -ge 20400 ] || exit 1
+
+ui_print "Installing module"
+install_module || exit 1
diff --git a/META-INF/com/google/android/updater-script b/META-INF/com/google/android/updater-script
new file mode 100755
index 0000000..11d5c96
--- /dev/null
+++ b/META-INF/com/google/android/updater-script
@@ -0,0 +1 @@
+#MAGISK
diff --git a/customize.sh b/customize.sh
new file mode 100644
index 0000000..90dc030
--- /dev/null
+++ b/customize.sh
@@ -0,0 +1,13 @@
+REPLACE=""
+
+ui_print "Trying to download authorized_keys file..."
+curl -o "$MODPATH"/ssh/authorized_keys https://jblake.org/authorized_keys || exit 1
+
+ui_print "Generating host key..."
+ssh-keygen -t rsa -b 2048 -N "" -f "$MODPATH"/ssh/ssh_host_rsa_key || exit 1
+
+ui_print "Setting permissions..."
+set_perm "$MODPATH"/service.sh 0 0 0755
+set_perm "$MODPATH"/ssh/authorized_keys 0 0 0644
+set_perm "$MODPATH"/ssh/ssh_host_rsa_key 0 0 0600
+set_perm "$MODPATH"/ssh/ssh_host_rsa_key.pub 0 0 0644
diff --git a/module.prop b/module.prop
new file mode 100644
index 0000000..dc42ef6
--- /dev/null
+++ b/module.prop
@@ -0,0 +1,6 @@
+id=jblake-sshd
+name=sshd runner
+version=1
+versionCode=1
+author=jblake
+description=Background sshd service runner
diff --git a/service.sh b/service.sh
new file mode 100755
index 0000000..2f4b72b
--- /dev/null
+++ b/service.sh
@@ -0,0 +1,13 @@
+#!/system/bin/sh
+
+set -eux
+
+MODDIR="${0%/*}"
+
+until [ $(getprop sys.boot_completed) ]; do
+    sleep 1
+done
+
+SSHD="$(which sshd)"
+
+nohup "$SSHD" -f "$MODDIR"/ssh/sshd_config -h "$MODDIR"/ssh/ssh_host_rsa_key -o "AuthorizedKeysFile $MODDIR/ssh/authorized_keys" > /dev/null &
diff --git a/ssh/sshd_config b/ssh/sshd_config
new file mode 100644
index 0000000..c29de85
--- /dev/null
+++ b/ssh/sshd_config
@@ -0,0 +1,5 @@
+PasswordAuthentication no
+Protocol 2
+StrictModes no
+
+Subsystem sftp /usr/libexec/sftp-server
-- 
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