1// AUTOGENERATED FILE 2 3package build 4 5const createImageScript = `#!/bin/bash 6 7 8set -eux 9 10CLEANUP="" 11trap 'eval " $CLEANUP"' EXIT 12 13if [ ! -e $1/sbin/init ]; then 14 echo "usage: create-gce-image.sh /dir/with/user/space/system /path/to/bzImage" 15 exit 1 16fi 17 18if [ "$(basename $2)" != "bzImage" ]; then 19 echo "usage: create-gce-image.sh /dir/with/user/space/system /path/to/bzImage" 20 exit 1 21fi 22 23SYZ_VM_TYPE="${SYZ_VM_TYPE:-qemu}" 24if [ "$SYZ_VM_TYPE" == "qemu" ]; then 25 : 26elif [ "$SYZ_VM_TYPE" == "gce" ]; then 27 : 28else 29 echo "SYZ_VM_TYPE has unsupported value $SYZ_VM_TYPE" 30 exit 1 31fi 32 33sudo umount disk.mnt || true 34if [ "$SYZ_VM_TYPE" == "qemu" ]; then 35 : 36elif [ "$SYZ_VM_TYPE" == "gce" ]; then 37 sudo modprobe nbd 38 sudo qemu-nbd -d /dev/nbd0 || true 39fi 40rm -rf disk.mnt disk.raw || true 41 42fallocate -l 2G disk.raw 43if [ "$SYZ_VM_TYPE" == "qemu" ]; then 44 DISKDEV="$(sudo losetup -f --show -P disk.raw)" 45 CLEANUP="sudo losetup -d $DISKDEV; $CLEANUP" 46elif [ "$SYZ_VM_TYPE" == "gce" ]; then 47 DISKDEV="/dev/nbd0" 48 sudo qemu-nbd -c $DISKDEV --format=raw disk.raw 49 CLEANUP="sudo qemu-nbd -d $DISKDEV; $CLEANUP" 50fi 51echo -en "o\nn\np\n1\n\n\na\nw\n" | sudo fdisk $DISKDEV 52PARTDEV=$DISKDEV"p1" 53until [ -e $PARTDEV ]; do sleep 1; done 54sudo -E mkfs.ext4 $PARTDEV 55mkdir -p disk.mnt 56CLEANUP="rm -rf disk.mnt; $CLEANUP" 57sudo mount $PARTDEV disk.mnt 58CLEANUP="sudo umount disk.mnt; $CLEANUP" 59sudo cp -a $1/. disk.mnt/. 60sudo cp $2 disk.mnt/vmlinuz 61sudo sed -i "/^root/ { s/:x:/::/ }" disk.mnt/etc/passwd 62echo "T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100" | sudo tee -a disk.mnt/etc/inittab 63echo -en "auto lo\niface lo inet loopback\nauto eth0\niface eth0 inet dhcp\n" | sudo tee disk.mnt/etc/network/interfaces 64echo "debugfs /sys/kernel/debug debugfs defaults 0 0" | sudo tee -a disk.mnt/etc/fstab 65echo 'binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc defaults 0 0' | sudo tee -a disk.mnt/etc/fstab 66for i in {0..31}; do 67 echo "KERNEL==\"binder$i\", NAME=\"binder$i\", MODE=\"0666\"" | \ 68 sudo tee -a disk.mnt/etc/udev/50-binder.rules 69done 70echo 'SELINUX=disabled' | sudo tee disk.mnt/etc/selinux/config 71 72echo "kernel.printk = 7 4 1 3" | sudo tee -a disk.mnt/etc/sysctl.conf 73echo "debug.exception-trace = 0" | sudo tee -a disk.mnt/etc/sysctl.conf 74SYZ_SYSCTL_FILE="${SYZ_SYSCTL_FILE:-}" 75if [ "$SYZ_SYSCTL_FILE" != "" ]; then 76 cat $SYZ_SYSCTL_FILE | sudo tee -a disk.mnt/etc/sysctl.conf 77fi 78 79echo -en "127.0.0.1\tlocalhost\n" | sudo tee disk.mnt/etc/hosts 80echo "nameserver 8.8.8.8" | sudo tee -a disk.mnt/etc/resolve.conf 81echo "ClientAliveInterval 420" | sudo tee -a disk.mnt/etc/ssh/sshd_config 82echo "syzkaller" | sudo tee disk.mnt/etc/hostname 83rm -f key key.pub 84ssh-keygen -f key -t rsa -N "" 85sudo mkdir -p disk.mnt/root/.ssh 86sudo cp key.pub disk.mnt/root/.ssh/authorized_keys 87sudo chown root disk.mnt/root/.ssh/authorized_keys 88sudo mkdir -p disk.mnt/boot/grub 89 90CMDLINE="" 91SYZ_CMDLINE_FILE="${SYZ_CMDLINE_FILE:-}" 92if [ "$SYZ_CMDLINE_FILE" != "" ]; then 93 CMDLINE=$(awk '{printf("%s ", $0)}' $SYZ_CMDLINE_FILE) 94fi 95 96cat << EOF | sudo tee disk.mnt/boot/grub/grub.cfg 97terminal_input console 98terminal_output console 99set timeout=0 100menuentry 'linux' --class gnu-linux --class gnu --class os { 101 insmod vbe 102 insmod vga 103 insmod video_bochs 104 insmod video_cirrus 105 insmod gzio 106 insmod part_msdos 107 insmod ext2 108 set root='(hd0,1)' 109 linux /vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 $CMDLINE 110} 111EOF 112sudo grub-install --target=i386-pc --boot-directory=disk.mnt/boot --no-floppy $DISKDEV 113` 114