Build customized openwrt rootfs image am: 8e0bf13f0a

Original change: https://android-review.googlesource.com/c/platform/external/openwrt-prebuilts/+/1849633

Change-Id: If3fe07e8656c2b1a3b927560f69a3a49d3c6a496

4 files changed, 112 insertions, 0 deletions

diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..246741d
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,30 @@
+package {
+    default_visibility: ["//visibility:private"],
+}
+
+filegroup {
+    name: "openwrt_license_files",
+    visibility: [":__subpackages__"],
+    srcs: [
+        "LICENSE",
+        "HOW_TO_GET_SOURCE_CODE",
+    ],
+}
+
+license {
+    name: "openwrt_license",
+    visibility: [":__subpackages__"],
+    license_kinds: [
+        "SPDX-license-identifier-Apache-2.0",
+        "SPDX-license-identifier-BSD",
+        "SPDX-license-identifier-GPL-2.0",
+        "SPDX-license-identifier-GPL-3.0",
+        "SPDX-license-identifier-LGPL-2.1",
+        "SPDX-license-identifier-MIT",
+        "SPDX-license-identifier-ISC",
+    ],
+    license_text: [
+        "LICENSE",
+        "HOW_TO_GET_SOURCE_CODE",
+    ],
+}
\ No newline at end of file
diff --git a/HOW_TO_GET_SOURCE_CODE b/HOW_TO_GET_SOURCE_CODE
new file mode 100644
index 0000000..9af9a78
--- /dev/null
+++ b/HOW_TO_GET_SOURCE_CODE
@@ -0,0 +1,2 @@
+https://git.openwrt.org/
+https://openwrt.org/docs/guide-developer/start
\ No newline at end of file
diff --git a/x86/Android.bp b/x86/Android.bp
new file mode 100644
index 0000000..a31e692
--- /dev/null
+++ b/x86/Android.bp
@@ -0,0 +1,60 @@
+genrule {
+    name: "openwrt_customization",
+    tools: [
+        "make_f2fs",
+        "sload_f2fs",
+    ],
+    srcs: [
+        ":openwrt_license_files",
+        "kmods/*",
+        "packages/*",
+        "uci-defaults/*",
+    ],
+    out: ["customization.img"],
+    cmd: "mkdir -p $(genDir)/root/upper/etc/uci-defaults && " +
+         "mkdir -p $(genDir)/root/upper/ipks && " +
+         "cp $(in) $(genDir)/ && " +
+         "mv $(genDir)/*.ipk $(genDir)/root/upper/ipks && " +
+         "mv $(genDir)/LICENSE $(genDir)/HOW_TO_GET_SOURCE_CODE $(genDir)/root/upper && " +
+         "mv $(genDir)/0_network_config $(genDir)/root/upper/etc/uci-defaults && " +
+         "ln -s 2 $(genDir)/root/.fs_state && " +
+         "truncate -s 128M $(out) && " +
+         "$(location make_f2fs) $(out) && " +
+         "$(location sload_f2fs) -f $(genDir)/root -t / $(out)",
+}
+
+genrule {
+    name: "openwrt_rootfs_base_img",
+    srcs: [
+        "images/openwrt-21.02.0-x86-64-generic-squashfs-rootfs.img.gz",
+    ],
+    out: ["base_rootfs.img"],
+    cmd: "cp $(in) $(genDir) && gzip -d $(genDir)/* && cp $(genDir)/* $(out)",
+}
+
+genrule {
+    name: "combined_openwrt_rootfs",
+    tools: [
+        "append_squashfs_overlay",
+    ],
+    srcs: [
+        ":openwrt_rootfs_base_img",
+        ":openwrt_customization",
+    ],
+    out: ["openwrt_rootfs.img"],
+    cmd: "$(location append_squashfs_overlay) $(in) $(out) -w",
+}
+
+prebuilt_etc_host {
+    name: "openwrt_rootfs",
+    src: ":combined_openwrt_rootfs",
+    sub_dir: "openwrt/images",
+    visibility: ["//device/google/cuttlefish/build"],
+}
+
+prebuilt_etc_host {
+    name: "openwrt_kernel",
+    src: "images/openwrt-21.02.0-x86-64-generic-kernel.bin",
+    sub_dir: "openwrt/images",
+    visibility: ["//device/google/cuttlefish/build"],
+}
\ No newline at end of file
diff --git a/x86/uci-defaults/0_network_config b/x86/uci-defaults/0_network_config
new file mode 100644
index 0000000..7a032d3
--- /dev/null
+++ b/x86/uci-defaults/0_network_config
@@ -0,0 +1,20 @@
+#!/bin/sh
+opkg install /ipks/*
+
+# The script below should be run after mac80211_hwsim is loaded.
+MODULE="mac80211_hwsim"
+while ! (lsmod | grep -o ^$MODULE) ; do sleep 1; done
+
+uci -q batch << EOI
+set network.lan.proto='static'
+set network.lan.ipaddr='192.168.96.2'
+set network.lan.netmask='255.255.255.0'
+set network.lan.ip6assign='30'
+set network.lan.gateway='192.168.96.1'
+set network.lan.dns='8.8.8.8'
+set network.lan.broadcast='192.168.96.3'
+commit network
+set wireless.radio0.disabled='0'
+set wireless.default_radio0.ssid='AndroidWifi'
+commit wireless
+EOI
\ No newline at end of file