cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

openbsd (6259B)


      1#!/usr/bin/env python3
      2#
      3# OpenBSD VM image
      4#
      5# Copyright 2017-2019 Red Hat Inc.
      6#
      7# Authors:
      8#  Fam Zheng <famz@redhat.com>
      9#  Gerd Hoffmann <kraxel@redhat.com>
     10#
     11# This code is licensed under the GPL version 2 or later.  See
     12# the COPYING file in the top-level directory.
     13#
     14
     15import os
     16import sys
     17import socket
     18import subprocess
     19import basevm
     20
     21class OpenBSDVM(basevm.BaseVM):
     22    name = "openbsd"
     23    arch = "x86_64"
     24
     25    link = "https://cdn.openbsd.org/pub/OpenBSD/6.9/amd64/install69.iso"
     26    csum = "140d26548aec680e34bb5f82295414228e7f61e4f5e7951af066014fda2d6e43"
     27    size = "20G"
     28    pkgs = [
     29        # tools
     30        "git",
     31        "pkgconf",
     32        "bzip2", "xz",
     33        "ninja",
     34
     35        # gnu tools
     36        "bash",
     37        "gmake",
     38        "gsed",
     39        "gettext-tools",
     40
     41        # libs: usb
     42        "libusb1--",
     43
     44        # libs: crypto
     45        "gnutls",
     46
     47        # libs: images
     48        "jpeg",
     49        "png",
     50
     51	# libs: ui
     52        "sdl2",
     53        "gtk+3",
     54        "libxkbcommon",
     55
     56        # libs: migration
     57        "zstd",
     58    ]
     59
     60    BUILD_SCRIPT = """
     61        set -e;
     62        rm -rf /home/qemu/qemu-test.*
     63        cd $(mktemp -d /home/qemu/qemu-test.XXXXXX);
     64        mkdir src build; cd src;
     65        tar -xf /dev/rsd1c;
     66        cd ../build
     67        ../src/configure --cc=cc --python=python3 {configure_opts};
     68        gmake --output-sync -j{jobs} {target} {verbose};
     69    """
     70    poweroff = "halt -p"
     71
     72    def build_image(self, img):
     73        self.print_step("Downloading install iso")
     74        cimg = self._download_with_cache(self.link, sha256sum=self.csum)
     75        img_tmp = img + ".tmp"
     76        iso = img + ".install.iso"
     77
     78        self.print_step("Preparing iso and disk image")
     79        subprocess.check_call(["cp", "-f", cimg, iso])
     80        self.exec_qemu_img("create", "-f", "qcow2", img_tmp, self.size)
     81
     82        self.print_step("Booting installer")
     83        self.boot(img_tmp, extra_args = [
     84            "-bios", "pc-bios/bios-256k.bin",
     85            "-machine", "graphics=off",
     86            "-device", "VGA",
     87            "-cdrom", iso
     88        ])
     89        self.console_init()
     90        self.console_wait_send("boot>", "set tty com0\n")
     91        self.console_wait_send("boot>", "\n")
     92
     93        # pre-install configuration
     94        self.console_wait_send("(I)nstall",               "i\n")
     95        self.console_wait_send("Terminal type",           "xterm\n")
     96        self.console_wait_send("System hostname",         "openbsd\n")
     97        self.console_wait_send("Which network interface", "vio0\n")
     98        self.console_wait_send("IPv4 address",            "dhcp\n")
     99        self.console_wait_send("IPv6 address",            "none\n")
    100        self.console_wait_send("Which network interface", "done\n")
    101        self.console_wait_send("DNS domain name",         "localnet\n")
    102        self.console_wait("Password for root account")
    103        self.console_send("%s\n" % self._config["root_pass"])
    104        self.console_wait("Password for root account")
    105        self.console_send("%s\n" % self._config["root_pass"])
    106        self.console_wait_send("Start sshd(8)",           "yes\n")
    107        self.console_wait_send("X Window System",         "\n")
    108        self.console_wait_send("xenodm",                  "\n")
    109        self.console_wait_send("console to com0",         "\n")
    110        self.console_wait_send("Which speed",             "\n")
    111
    112        self.console_wait("Setup a user")
    113        self.console_send("%s\n" % self._config["guest_user"])
    114        self.console_wait("Full name")
    115        self.console_send("%s\n" % self._config["guest_user"])
    116        self.console_wait("Password")
    117        self.console_send("%s\n" % self._config["guest_pass"])
    118        self.console_wait("Password")
    119        self.console_send("%s\n" % self._config["guest_pass"])
    120
    121        self.console_wait_send("Allow root ssh login",    "yes\n")
    122        self.console_wait_send("timezone",                "UTC\n")
    123        self.console_wait_send("root disk",               "\n")
    124        self.console_wait_send("(W)hole disk",            "\n")
    125        self.console_wait_send("(A)uto layout",           "\n")
    126        self.console_wait_send("Location of sets",        "cd0\n")
    127        self.console_wait_send("Pathname to the sets",    "\n")
    128        self.console_wait_send("Set name(s)",             "\n")
    129        self.console_wait_send("without verification",    "yes\n")
    130
    131        self.print_step("Installation started now, this will take a while")
    132        self.console_wait_send("Location of sets",        "done\n")
    133
    134        self.console_wait("successfully completed")
    135        self.print_step("Installation finished, rebooting")
    136        self.console_wait_send("(R)eboot",                "reboot\n")
    137
    138        # setup qemu user
    139        prompt = "$"
    140        self.console_ssh_init(prompt, self._config["guest_user"],
    141                                      self._config["guest_pass"])
    142        self.console_wait_send(prompt, "exit\n")
    143
    144        # setup root user
    145        prompt = "openbsd#"
    146        self.console_ssh_init(prompt, "root", self._config["root_pass"])
    147        self.console_sshd_config(prompt)
    148
    149        # setup virtio-blk #1 (tarfile)
    150        self.console_wait(prompt)
    151        self.console_send("echo 'chmod 666 /dev/rsd1c' >> /etc/rc.local\n")
    152
    153        # enable w+x for /home
    154        self.console_wait(prompt)
    155        self.console_send("sed -i -e '/home/s/rw,/rw,wxallowed,/' /etc/fstab\n")
    156
    157        # tweak datasize limit
    158        self.console_wait(prompt)
    159        self.console_send("sed -i -e 's/\\(datasize[^=]*\\)=[^:]*/\\1=infinity/' /etc/login.conf\n")
    160
    161        # use http (be proxy cache friendly)
    162        self.console_wait(prompt)
    163        self.console_send("sed -i -e 's/https/http/' /etc/installurl\n")
    164
    165        self.print_step("Configuration finished, rebooting")
    166        self.console_wait_send(prompt, "reboot\n")
    167        self.console_wait("login:")
    168        self.wait_ssh()
    169
    170        self.print_step("Installing packages")
    171        self.ssh_root_check("pkg_add %s\n" % " ".join(self.pkgs))
    172
    173        # shutdown
    174        self.ssh_root(self.poweroff)
    175        self.wait()
    176
    177        if os.path.exists(img):
    178            os.remove(img)
    179        os.rename(img_tmp, img)
    180        os.remove(iso)
    181        self.print_step("All done")
    182
    183if __name__ == "__main__":
    184    sys.exit(basevm.main(OpenBSDVM))