From 94ef62054cd1f18fb4deaff776695f5a1670a358 Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Thu, 21 Jun 2018 14:53:21 +0200 Subject: pkg/build: move from pkg/kernel Rename pkg/kernel to pkg/build and prepare for multi-OS support. --- pkg/build/linux_generated.go | 113 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 pkg/build/linux_generated.go (limited to 'pkg/build/linux_generated.go') diff --git a/pkg/build/linux_generated.go b/pkg/build/linux_generated.go new file mode 100644 index 000000000..95da10aee --- /dev/null +++ b/pkg/build/linux_generated.go @@ -0,0 +1,113 @@ +// AUTOGENERATED FILE + +package build + +const createImageScript = `#!/bin/bash + + +set -eux + +CLEANUP="" +trap 'eval " $CLEANUP"' EXIT + +if [ ! -e $1/sbin/init ]; then + echo "usage: create-gce-image.sh /dir/with/user/space/system /path/to/bzImage" + exit 1 +fi + +if [ "$(basename $2)" != "bzImage" ]; then + echo "usage: create-gce-image.sh /dir/with/user/space/system /path/to/bzImage" + exit 1 +fi + +SYZ_VM_TYPE="${SYZ_VM_TYPE:-qemu}" +if [ "$SYZ_VM_TYPE" == "qemu" ]; then + : +elif [ "$SYZ_VM_TYPE" == "gce" ]; then + : +else + echo "SYZ_VM_TYPE has unsupported value $SYZ_VM_TYPE" + exit 1 +fi + +sudo umount disk.mnt || true +if [ "$SYZ_VM_TYPE" == "qemu" ]; then + : +elif [ "$SYZ_VM_TYPE" == "gce" ]; then + sudo modprobe nbd + sudo qemu-nbd -d /dev/nbd0 || true +fi +rm -rf disk.mnt disk.raw || true + +fallocate -l 2G disk.raw +if [ "$SYZ_VM_TYPE" == "qemu" ]; then + DISKDEV="$(sudo losetup -f --show -P disk.raw)" + CLEANUP="sudo losetup -d $DISKDEV; $CLEANUP" +elif [ "$SYZ_VM_TYPE" == "gce" ]; then + DISKDEV="/dev/nbd0" + sudo qemu-nbd -c $DISKDEV --format=raw disk.raw + CLEANUP="sudo qemu-nbd -d $DISKDEV; $CLEANUP" +fi +echo -en "o\nn\np\n1\n\n\na\nw\n" | sudo fdisk $DISKDEV +PARTDEV=$DISKDEV"p1" +until [ -e $PARTDEV ]; do sleep 1; done +sudo -E mkfs.ext4 $PARTDEV +mkdir -p disk.mnt +CLEANUP="rm -rf disk.mnt; $CLEANUP" +sudo mount $PARTDEV disk.mnt +CLEANUP="sudo umount disk.mnt; $CLEANUP" +sudo cp -a $1/. disk.mnt/. +sudo cp $2 disk.mnt/vmlinuz +sudo sed -i "/^root/ { s/:x:/::/ }" disk.mnt/etc/passwd +echo "T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100" | sudo tee -a disk.mnt/etc/inittab +echo -en "auto lo\niface lo inet loopback\nauto eth0\niface eth0 inet dhcp\n" | sudo tee disk.mnt/etc/network/interfaces +echo "debugfs /sys/kernel/debug debugfs defaults 0 0" | sudo tee -a disk.mnt/etc/fstab +echo 'binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc defaults 0 0' | sudo tee -a disk.mnt/etc/fstab +for i in {0..31}; do + echo "KERNEL==\"binder$i\", NAME=\"binder$i\", MODE=\"0666\"" | \ + sudo tee -a disk.mnt/etc/udev/50-binder.rules +done +echo 'SELINUX=disabled' | sudo tee disk.mnt/etc/selinux/config + +echo "kernel.printk = 7 4 1 3" | sudo tee -a disk.mnt/etc/sysctl.conf +echo "debug.exception-trace = 0" | sudo tee -a disk.mnt/etc/sysctl.conf +SYZ_SYSCTL_FILE="${SYZ_SYSCTL_FILE:-}" +if [ "$SYZ_SYSCTL_FILE" != "" ]; then + cat $SYZ_SYSCTL_FILE | sudo tee -a disk.mnt/etc/sysctl.conf +fi + +echo -en "127.0.0.1\tlocalhost\n" | sudo tee disk.mnt/etc/hosts +echo "nameserver 8.8.8.8" | sudo tee -a disk.mnt/etc/resolve.conf +echo "ClientAliveInterval 420" | sudo tee -a disk.mnt/etc/ssh/sshd_config +echo "syzkaller" | sudo tee disk.mnt/etc/hostname +rm -f key key.pub +ssh-keygen -f key -t rsa -N "" +sudo mkdir -p disk.mnt/root/.ssh +sudo cp key.pub disk.mnt/root/.ssh/authorized_keys +sudo chown root disk.mnt/root/.ssh/authorized_keys +sudo mkdir -p disk.mnt/boot/grub + +CMDLINE="" +SYZ_CMDLINE_FILE="${SYZ_CMDLINE_FILE:-}" +if [ "$SYZ_CMDLINE_FILE" != "" ]; then + CMDLINE=$(awk '{printf("%s ", $0)}' $SYZ_CMDLINE_FILE) +fi + +cat << EOF | sudo tee disk.mnt/boot/grub/grub.cfg +terminal_input console +terminal_output console +set timeout=0 +menuentry 'linux' --class gnu-linux --class gnu --class os { + insmod vbe + insmod vga + insmod video_bochs + insmod video_cirrus + insmod gzio + insmod part_msdos + insmod ext2 + set root='(hd0,1)' + 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 +} +EOF +sudo grub-install --target=i386-pc --boot-directory=disk.mnt/boot --no-floppy $DISKDEV +` -- cgit mrf-deployment