562 lines
22 KiB
Python
562 lines
22 KiB
Python
# Copyright 2020 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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import logging
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import os
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import re
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import glob
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import shlex
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import pmb.chroot
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import pmb.chroot.apk
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import pmb.chroot.other
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import pmb.chroot.initfs
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import pmb.config
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import pmb.helpers.devices
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import pmb.helpers.run
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import pmb.install.blockdevice
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import pmb.install.file
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import pmb.install.recovery
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import pmb.install
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def mount_device_rootfs(args, suffix="native"):
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"""
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Mount the device rootfs.
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"""
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mountpoint = "/mnt/rootfs_" + args.device
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pmb.helpers.mount.bind(args, args.work + "/chroot_rootfs_" + args.device,
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args.work + "/chroot_" + suffix + mountpoint)
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return mountpoint
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def get_subpartitions_size(args):
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"""
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Calculate the size of the boot and root subpartition.
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:returns: (boot, root) the size of the boot and root
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partition as integer in MB
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"""
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boot = int(args.boot_size)
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# Estimate root partition size, then add some free space. The size
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# calculation is not as trivial as one may think, and depending on the
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# file system etc it seems to be just impossible to get it right.
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chroot = args.work + "/chroot_rootfs_" + args.device
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root = pmb.helpers.other.folder_size(args, chroot) / 1024 / 1024
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root *= 1.20
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root += 50
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return (boot, root)
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def get_nonfree_packages(args, device):
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"""
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Get the non-free packages based on user's choice in "pmbootstrap init" and
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based on whether there are non-free packages in the APKBUILD or not.
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:returns: list of non-free packages to be installed. Example:
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["device-nokia-n900-nonfree-firmware"]
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"""
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# Read subpackages
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apkbuild = pmb.parse.apkbuild(args, pmb.helpers.devices.find_path(args, device, 'APKBUILD'))
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subpackages = apkbuild["subpackages"]
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# Check for firmware and userland
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ret = []
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prefix = "device-" + device + "-nonfree-"
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if args.nonfree_firmware and prefix + "firmware" in subpackages:
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ret += [prefix + "firmware"]
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if args.nonfree_userland and prefix + "userland" in subpackages:
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ret += [prefix + "userland"]
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return ret
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def get_kernel_package(args, device):
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"""
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Get the device's kernel subpackage based on the user's choice in
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"pmbootstrap init".
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:param device: code name, e.g. "sony-amami"
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:returns: [] or the package in a list, e.g.
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["device-sony-amami-kernel-mainline"]
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"""
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# Empty list: single kernel devices / "none" selected
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kernels = pmb.parse._apkbuild.kernels(args, device)
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if not kernels or args.kernel == "none":
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return []
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# Sanity check
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if args.kernel not in kernels:
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raise RuntimeError("Selected kernel (" + args.kernel + ") is not"
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" configured for device " + device + ". Please"
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" run 'pmbootstrap init' to select a valid kernel.")
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# Selected kernel subpackage
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return ["device-" + device + "-kernel-" + args.kernel]
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def copy_files_from_chroot(args):
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"""
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Copy all files from the rootfs chroot to /mnt/install, except
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for the home folder (because /home will contain some empty
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mountpoint folders).
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"""
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# Mount the device rootfs
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logging.info("(native) copy rootfs_" + args.device + " to" +
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" /mnt/install/")
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mountpoint = mount_device_rootfs(args)
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mountpoint_outside = args.work + "/chroot_native" + mountpoint
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# Remove empty qemu-user binary stub (where the binary was bind-mounted)
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arch_qemu = pmb.parse.arch.alpine_to_qemu(args.deviceinfo["arch"])
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qemu_binary = mountpoint_outside + "/usr/bin/qemu-" + arch_qemu + "-static"
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if os.path.exists(qemu_binary):
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pmb.helpers.run.root(args, ["rm", qemu_binary])
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# Get all folders inside the device rootfs (except for home)
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folders = []
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for path in glob.glob(mountpoint_outside + "/*"):
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if path.endswith("/home"):
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continue
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folders += [os.path.basename(path)]
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# Update or copy all files
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if args.rsync:
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pmb.chroot.apk.install(args, ["rsync"])
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rsync_flags = "-a"
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if args.verbose:
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rsync_flags += "vP"
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pmb.chroot.root(args, ["rsync", rsync_flags, "--delete"] + folders + ["/mnt/install/"],
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working_dir=mountpoint)
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pmb.chroot.root(args, ["rm", "-rf", "/mnt/install/home"])
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else:
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pmb.chroot.root(args, ["cp", "-a"] + folders + ["/mnt/install/"],
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working_dir=mountpoint)
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def create_home_from_skel(args):
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"""
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Create /home/{user} from /etc/skel
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"""
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rootfs = args.work + "/chroot_native/mnt/install"
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homedir = rootfs + "/home/" + args.user
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pmb.helpers.run.root(args, ["mkdir", rootfs + "/home"])
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pmb.helpers.run.root(args, ["cp", "-a", rootfs + "/etc/skel", homedir])
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pmb.helpers.run.root(args, ["chown", "-R", "10000", homedir])
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def configure_apk(args):
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"""
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Copies over all keys used locally to compile packages, and disables the
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/mnt/pmbootstrap-packages repository.
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"""
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# Copy over keys
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rootfs = args.work + "/chroot_native/mnt/install"
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for key in glob.glob(args.work + "/config_apk_keys/*.pub"):
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pmb.helpers.run.root(args, ["cp", key, rootfs + "/etc/apk/keys/"])
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# Disable pmbootstrap repository
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pmb.helpers.run.root(args, ["sed", "-i", r"/\/mnt\/pmbootstrap-packages/d",
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rootfs + "/etc/apk/repositories"])
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pmb.helpers.run.user(args, ["cat", rootfs + "/etc/apk/repositories"])
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def set_user(args):
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"""
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Create user with UID 10000 if it doesn't exist.
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Usually the ID for the first user created is 1000, but higher ID is
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chosen here to avoid conflict with Android UIDs/GIDs.
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"""
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suffix = "rootfs_" + args.device
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if not pmb.chroot.user_exists(args, args.user, suffix):
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pmb.chroot.root(args, ["adduser", "-D", "-u", "10000", args.user],
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suffix)
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for group in pmb.config.install_user_groups:
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pmb.chroot.root(args, ["addgroup", "-S", group], suffix,
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check=False)
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pmb.chroot.root(args, ["addgroup", args.user, group], suffix)
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def setup_login(args):
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"""
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Loop until the password for user has been set successfully, and disable root
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login.
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"""
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# User password
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logging.info(" *** SET LOGIN PASSWORD FOR: '" + args.user + "' ***")
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suffix = "rootfs_" + args.device
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while True:
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try:
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pmb.chroot.root(args, ["passwd", args.user], suffix,
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output="interactive")
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break
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except RuntimeError:
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logging.info("WARNING: Failed to set the password. Try it"
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" one more time.")
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pass
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# Disable root login
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pmb.chroot.root(args, ["passwd", "-l", "root"], suffix)
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def copy_ssh_keys(args):
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"""
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If requested, copy user's SSH public keys to the device if they exist
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"""
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if not args.ssh_keys:
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return
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keys = []
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for key in glob.glob(os.path.expanduser("~/.ssh/id_*.pub")):
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with open(key, "r") as infile:
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keys += infile.readlines()
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if not len(keys):
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logging.info("NOTE: Public SSH keys not found. Since no SSH keys " +
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"were copied, you will need to use SSH password authentication!")
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return
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authorized_keys = args.work + "/chroot_native/tmp/authorized_keys"
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outfile = open(authorized_keys, "w")
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for key in keys:
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outfile.write("%s" % key)
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outfile.close()
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target = args.work + "/chroot_native/mnt/install/home/" + args.user + "/.ssh"
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pmb.helpers.run.root(args, ["mkdir", target])
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pmb.helpers.run.root(args, ["chmod", "700", target])
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pmb.helpers.run.root(args, ["cp", authorized_keys, target + "/authorized_keys"])
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pmb.helpers.run.root(args, ["rm", authorized_keys])
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pmb.helpers.run.root(args, ["chown", "-R", "10000:10000", target])
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def setup_keymap(args):
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"""
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Set the keymap with the setup-keymap utility if the device requires it
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"""
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suffix = "rootfs_" + args.device
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info = pmb.parse.deviceinfo(args, device=args.device)
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if "keymaps" not in info or info["keymaps"].strip() == "":
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logging.info("NOTE: No valid keymap specified for device")
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return
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options = info["keymaps"].split(' ')
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if (args.keymap != "" and
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args.keymap is not None and
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args.keymap in options):
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layout, variant = args.keymap.split("/")
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pmb.chroot.root(args, ["setup-keymap", layout, variant], suffix,
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output="interactive")
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# Check xorg config
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config = pmb.chroot.root(args, ["grep", "-rl", "XkbLayout", "/etc/X11/xorg.conf.d/"],
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suffix, check=False, output_return=True)
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if config:
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# Multiple files can contain the keyboard layout, take last
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config = config.splitlines()[-1]
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old_text = "Option *\\\"XkbLayout\\\" *\\\".*\\\""
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new_text = "Option \\\"XkbLayout\\\" \\\"" + layout + "\\\""
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pmb.chroot.root(args, ["sed", "-i", "s/" + old_text + "/" + new_text + "/", config],
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suffix)
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else:
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logging.info("NOTE: No valid keymap specified for device")
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def setup_hostname(args):
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"""
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Set the hostname and update localhost address in /etc/hosts
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"""
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# Default to device name
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hostname = args.hostname
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if not hostname:
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hostname = args.device
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if not pmb.helpers.other.validate_hostname(hostname):
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raise RuntimeError("Hostname '" + hostname + "' is not valid, please"
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" run 'pmbootstrap init' to configure it.")
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suffix = "rootfs_" + args.device
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# Generate /etc/hostname
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pmb.chroot.root(args, ["sh", "-c", "echo " + shlex.quote(hostname) +
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" > /etc/hostname"], suffix)
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# Update /etc/hosts
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regex = (r"s/^127\.0\.0\.1.*/127.0.0.1\t" + re.escape(hostname) +
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" localhost.localdomain localhost/")
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pmb.chroot.root(args, ["sed", "-i", "-e", regex, "/etc/hosts"], suffix)
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def embed_firmware(args):
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"""
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This method will embed firmware, located at /usr/share, that are specified
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by the "sd_embed_firmware" deviceinfo parameter into the SD card image
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(e.g. u-boot). Binaries that would overwrite the first partition are not
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accepted, and if multiple binaries are specified then they will be checked
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for collisions with each other.
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"""
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if not args.deviceinfo["sd_embed_firmware"]:
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return
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step = 1024
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if args.deviceinfo["sd_embed_firmware_step_size"]:
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try:
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step = int(args.deviceinfo["sd_embed_firmware_step_size"])
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except ValueError:
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raise RuntimeError("Value for "
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"deviceinfo_sd_embed_firmware_step_size "
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"is not valid: {}".format(step))
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device_rootfs = mount_device_rootfs(args)
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binaries = args.deviceinfo["sd_embed_firmware"].split(",")
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# Perform three checks prior to writing binaries to disk: 1) that binaries
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# exist, 2) that binaries do not extend into the first partition, 3) that
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# binaries do not overlap each other
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binary_ranges = {}
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binary_list = []
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for binary_offset in binaries:
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binary, offset = binary_offset.split(':')
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try:
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offset = int(offset)
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except ValueError:
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raise RuntimeError("Value for firmware binary offset is "
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"not valid: {}".format(offset))
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binary_path = os.path.join(args.work, "chroot_rootfs_" +
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args.device, "usr/share", binary)
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if not os.path.exists(binary_path):
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raise RuntimeError("The following firmware binary does not "
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"exist in the device rootfs: "
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"{}".format("/usr/share/" + binary))
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# Insure that embedding the firmware will not overrun the
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# first partition
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boot_part_start = args.deviceinfo["boot_part_start"] or "2048"
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max_size = (int(boot_part_start) * 512) - (offset * step)
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binary_size = os.path.getsize(binary_path)
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if binary_size > max_size:
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raise RuntimeError("The firmware is too big to embed in the "
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"disk image {}B > {}B".format(binary_size,
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max_size))
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# Insure that the firmware does not conflict with any other firmware
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# that will be embedded
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binary_start = offset * step
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binary_end = binary_start + binary_size
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for start, end in binary_ranges.items():
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if ((binary_start >= start and binary_start <= end) or
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(binary_end >= start and binary_end <= end)):
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raise RuntimeError("The firmware overlaps with at least one "
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"other firmware image: {}".format(binary))
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binary_ranges[binary_start] = binary_end
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binary_list.append((binary, offset))
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# Write binaries to disk
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for binary, offset in binary_list:
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binary_file = os.path.join("/usr/share", binary)
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logging.info("Embed firmware {} in the SD card image at offset {} with"
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" step size {}".format(binary, offset, step))
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filename = os.path.join(device_rootfs, binary_file.lstrip("/"))
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pmb.chroot.root(args, ["dd", "if=" + filename, "of=/dev/install",
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"bs=" + str(step), "seek=" + str(offset)])
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def sanity_check_sdcard(device):
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device_name = os.path.basename(device)
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if not os.path.exists(device):
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raise RuntimeError("{} doesn't exist, is the sdcard plugged?".format(device))
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if os.path.isdir('/sys/class/block/{}'.format(device_name)):
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with open('/sys/class/block/{}/ro'.format(device_name), 'r') as handle:
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ro = handle.read()
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if ro == '1\n':
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raise RuntimeError("{} is read-only, is the sdcard locked?".format(device))
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def install_system_image(args, size_reserve=0):
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"""
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:param size_reserve: empty partition between root and boot in MB (pma#463)
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"""
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# Partition and fill image/sdcard
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logging.info("*** (3/5) PREPARE INSTALL BLOCKDEVICE ***")
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pmb.chroot.shutdown(args, True)
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(size_boot, size_root) = get_subpartitions_size(args)
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if not args.rsync:
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pmb.install.blockdevice.create(args, size_boot, size_root,
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size_reserve)
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if not args.split:
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pmb.install.partition(args, size_boot, size_reserve)
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if not args.split:
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root_id = 3 if size_reserve else 2
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pmb.install.partitions_mount(args, root_id)
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pmb.install.format(args, size_reserve)
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# Just copy all the files
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logging.info("*** (4/5) FILL INSTALL BLOCKDEVICE ***")
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copy_files_from_chroot(args)
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create_home_from_skel(args)
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configure_apk(args)
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copy_ssh_keys(args)
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embed_firmware(args)
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pmb.chroot.shutdown(args, True)
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# Convert rootfs to sparse using img2simg
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sparse = args.sparse
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if sparse is None:
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sparse = args.deviceinfo["flash_sparse"] == "true"
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if sparse and not args.split and not args.sdcard:
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logging.info("(native) make sparse rootfs")
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pmb.chroot.apk.install(args, ["android-tools"])
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sys_image = args.device + ".img"
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sys_image_sparse = args.device + "-sparse.img"
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pmb.chroot.user(args, ["img2simg", sys_image, sys_image_sparse],
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working_dir="/home/pmos/rootfs/")
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pmb.chroot.user(args, ["mv", "-f", sys_image_sparse, sys_image],
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working_dir="/home/pmos/rootfs/")
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def print_flash_info(args, step=5):
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""" Print flashing information, based on the deviceinfo data and the
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pmbootstrap arguments.
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:param step: installation step number """
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logging.info(f"*** ({step}/{step}) FLASHING TO DEVICE ***")
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logging.info("Run the following to flash your installation to the"
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" target device:")
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# System flash information
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method = args.deviceinfo["flash_method"]
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flasher = pmb.config.flashers.get(method, {})
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flasher_actions = flasher.get("actions", {})
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requires_split = flasher.get("split", False)
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if "flash_rootfs" in flasher_actions and not args.sdcard and \
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bool(args.split) == requires_split:
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logging.info("* pmbootstrap flasher flash_rootfs")
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logging.info(" Flashes the generated rootfs image to your device:")
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if args.split:
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logging.info(f" {args.work}/chroot_native/home/pmos/rootfs/"
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f"{args.device}-rootfs.img")
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else:
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logging.info(f" {args.work}/chroot_native/home/pmos/rootfs/"
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f"{args.device}.img")
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logging.info(" (NOTE: This file has a partition table, which"
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" contains /boot and / subpartitions. That way we"
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" don't need to change the partition layout on your"
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" device.)")
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# if current flasher supports vbmeta and partition is explicitly specified
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# in deviceinfo
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if "flash_vbmeta" in flasher_actions and \
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(args.deviceinfo["flash_fastboot_partition_vbmeta"] or
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args.deviceinfo["flash_heimdall_partition_vbmeta"]):
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logging.info("* pmbootstrap flasher flash_vbmeta")
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logging.info(" Flashes vbmeta image with verification disabled flag.")
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# Most flash methods operate independently of the boot partition.
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# (e.g. an Android boot image is generated). In that case, "flash_kernel"
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# works even when partitions are split or installing for sdcard.
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# This is not possible if the flash method requires split partitions.
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if "flash_kernel" in flasher_actions and \
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(not requires_split or args.split):
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logging.info("* pmbootstrap flasher flash_kernel")
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logging.info(" Flashes the kernel + initramfs to your device:")
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if requires_split:
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logging.info(f" {args.work}/chroot_native/home/pmos/rootfs/"
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f"{args.device}-boot.img")
|
|
else:
|
|
logging.info(f" {args.work}/chroot_rootfs_{args.device}/boot")
|
|
|
|
if "boot" in flasher_actions:
|
|
logging.info(" (NOTE: " + method + " also supports booting"
|
|
" the kernel/initramfs directly without flashing."
|
|
" Use 'pmbootstrap flasher boot' to do that.)")
|
|
|
|
# Export information
|
|
logging.info("* If the above steps do not work, you can also create"
|
|
" symlinks to the generated files with 'pmbootstrap export'"
|
|
" and flash outside of pmbootstrap.")
|
|
|
|
|
|
def install_recovery_zip(args):
|
|
logging.info("*** (3/4) CREATING RECOVERY-FLASHABLE ZIP ***")
|
|
suffix = "buildroot_" + args.deviceinfo["arch"]
|
|
mount_device_rootfs(args, suffix)
|
|
pmb.install.recovery.create_zip(args, suffix)
|
|
|
|
# Flash information
|
|
logging.info("*** (4/4) FLASHING TO DEVICE ***")
|
|
logging.info("Flashing with the recovery zip is explained here:")
|
|
logging.info("<https://postmarketos.org/recoveryzip>")
|
|
|
|
|
|
def install(args):
|
|
# Sanity checks
|
|
if not args.android_recovery_zip and args.sdcard:
|
|
sanity_check_sdcard(args.sdcard)
|
|
|
|
# Number of steps for the different installation methods.
|
|
if args.no_image:
|
|
steps = 2
|
|
elif args.android_recovery_zip:
|
|
steps = 4
|
|
else:
|
|
steps = 5
|
|
|
|
# Install required programs in native chroot
|
|
logging.info("*** (1/{}) PREPARE NATIVE CHROOT ***".format(steps))
|
|
pmb.chroot.apk.install(args, pmb.config.install_native_packages,
|
|
build=False)
|
|
|
|
# List all packages to be installed (including the ones specified by --add)
|
|
# and upgrade the installed packages/apkindexes
|
|
logging.info('*** (2/{0}) CREATE DEVICE ROOTFS ("{1}") ***'.format(steps,
|
|
args.device))
|
|
install_packages = (pmb.config.install_device_packages +
|
|
["device-" + args.device] +
|
|
get_kernel_package(args, args.device) +
|
|
get_nonfree_packages(args, args.device))
|
|
if not args.install_base:
|
|
install_packages = [p for p in install_packages if p != "postmarketos-base"]
|
|
if args.ui.lower() != "none":
|
|
install_packages += ["postmarketos-ui-" + args.ui]
|
|
if args.ui_extras:
|
|
install_packages += ["postmarketos-ui-" + args.ui + "-extras"]
|
|
suffix = "rootfs_" + args.device
|
|
pmb.chroot.apk.upgrade(args, suffix)
|
|
|
|
# Create final user and remove 'build' user
|
|
set_user(args)
|
|
|
|
# Explicitly call build on the install packages, to re-build them or any
|
|
# dependency, in case the version increased
|
|
if args.extra_packages.lower() != "none":
|
|
install_packages += args.extra_packages.split(",")
|
|
if args.add:
|
|
install_packages += args.add.split(",")
|
|
for pkgname in install_packages:
|
|
pmb.build.package(args, pkgname, args.deviceinfo["arch"])
|
|
|
|
# Install all packages to device rootfs chroot (and rebuild the initramfs,
|
|
# because that doesn't always happen automatically yet, e.g. when the user
|
|
# installed a hook without pmbootstrap - see #69 for more info)
|
|
pmb.chroot.apk.install(args, install_packages, suffix)
|
|
pmb.install.file.write_os_release(args, suffix)
|
|
for flavor in pmb.chroot.other.kernel_flavors_installed(args, suffix):
|
|
pmb.chroot.initfs.build(args, flavor, suffix)
|
|
|
|
# Set the user password
|
|
setup_login(args)
|
|
|
|
# Set the keymap if the device requires it
|
|
setup_keymap(args)
|
|
|
|
# Set timezone
|
|
pmb.chroot.root(args, ["setup-timezone", "-z", args.timezone], suffix)
|
|
|
|
# Set the hostname as the device name
|
|
setup_hostname(args)
|
|
|
|
if args.no_image:
|
|
return
|
|
elif args.android_recovery_zip:
|
|
return install_recovery_zip(args)
|
|
|
|
install_system_image(args)
|
|
print_flash_info(args)
|