tauri/.docker/cross/linux-image.sh
2022-07-27 14:58:43 -03:00

275 lines
8.8 KiB
Bash
Executable File

#!/usr/bin/env bash
set -x
set -euo pipefail
# shellcheck disable=SC1091
. lib.sh
main() {
# arch in the rust target
local arch="${1}" \
kversion=4.19.0-20
local debsource="deb http://http.debian.net/debian/ buster main"
debsource="${debsource}\ndeb http://security.debian.org/ buster/updates main"
local dropbear="dropbear-bin"
local -a deps
local kernel=
local libgcc="libgcc1"
# select debian arch and kernel version
case "${arch}" in
aarch64)
arch=arm64
kernel="${kversion}-arm64"
;;
armv7)
arch=armhf
kernel="${kversion}-armmp"
;;
i686)
arch=i386
kernel="${kversion}-686"
;;
mips|mipsel)
kernel="${kversion}-4kc-malta"
;;
mips64el)
kernel="${kversion}-5kc-malta"
;;
powerpc)
# there is no buster powerpc port, so we use jessie
# use a more recent kernel from backports
kversion='4.9.0-0.bpo.6'
kernel="${kversion}-powerpc"
debsource="deb http://archive.debian.org/debian jessie main"
debsource="${debsource}\ndeb http://archive.debian.org/debian jessie-backports main"
debsource="${debsource}\ndeb http://ftp.ports.debian.org/debian-ports unstable main"
debsource="${debsource}\ndeb http://ftp.ports.debian.org/debian-ports unreleased main"
# archive.debian.org Release files are expired.
echo "Acquire::Check-Valid-Until false;" | tee -a /etc/apt/apt.conf.d/10-nocheckvalid
echo "APT::Get::AllowUnauthenticated true;" | tee -a /etc/apt/apt.conf.d/10-nocheckvalid
dropbear="dropbear"
deps=(libcrypt1:"${arch}")
;;
powerpc64)
# there is no stable port
arch=ppc64
# https://packages.debian.org/en/sid/linux-image-powerpc64
kversion='5.*'
kernel="${kversion}-powerpc64"
libgcc="libgcc-s1"
debsource="deb http://ftp.ports.debian.org/debian-ports unstable main"
debsource="${debsource}\ndeb http://ftp.ports.debian.org/debian-ports unreleased main"
# sid version of dropbear requires these dependencies
deps=(libcrypt1:"${arch}")
;;
powerpc64le)
arch=ppc64el
kernel="${kversion}-powerpc64le"
;;
s390x)
arch=s390x
kernel="${kversion}-s390x"
;;
sparc64)
# there is no stable port
# https://packages.debian.org/en/sid/linux-image-sparc64
kernel='*-sparc64'
libgcc="libgcc-s1"
debsource="deb http://ftp.ports.debian.org/debian-ports unstable main"
debsource="${debsource}\ndeb http://ftp.ports.debian.org/debian-ports unreleased main"
# sid version of dropbear requires these dependencies
deps=(libcrypt1:"${arch}")
;;
x86_64)
arch=amd64
kernel="${kversion}-amd64"
;;
*)
echo "Invalid arch: ${arch}"
exit 1
;;
esac
install_packages ca-certificates \
curl \
cpio \
sharutils \
gnupg
# Download packages
mv /etc/apt/sources.list /etc/apt/sources.list.bak
echo -e "${debsource}" > /etc/apt/sources.list
# Old ubuntu does not support --add-architecture, so we directly change multiarch file
if [ -f /etc/dpkg/dpkg.cfg.d/multiarch ]; then
cp /etc/dpkg/dpkg.cfg.d/multiarch /etc/dpkg/dpkg.cfg.d/multiarch.bak
fi
dpkg --add-architecture "${arch}" || echo "foreign-architecture ${arch}" > /etc/dpkg/dpkg.cfg.d/multiarch
# Add Debian keys.
curl --retry 3 -sSfL 'https://ftp-master.debian.org/keys/archive-key-{7.0,8,9,10}.asc' -O
curl --retry 3 -sSfL 'https://ftp-master.debian.org/keys/archive-key-{8,9,10}-security.asc' -O
curl --retry 3 -sSfL 'https://ftp-master.debian.org/keys/release-{7,8,9,10}.asc' -O
curl --retry 3 -sSfL 'https://www.ports.debian.org/archive_{2020,2021,2022}.key' -O
for key in *.asc *.key; do
apt-key add "${key}"
rm "${key}"
done
# allow apt-get to retry downloads
echo 'APT::Acquire::Retries "3";' > /etc/apt/apt.conf.d/80-retries
apt-get update
mkdir -p "/qemu/${arch}"
chmod 777 /qemu "/qemu/${arch}"
cd "/qemu/${arch}"
apt-get -d --no-install-recommends download \
${deps[@]+"${deps[@]}"} \
"busybox:${arch}" \
"${dropbear}:${arch}" \
"libtommath1:${arch}" \
"libtomcrypt1:${arch}" \
"libgmp10:${arch}" \
"libc6:${arch}" \
"${libgcc}:${arch}" \
"libstdc++6:${arch}" \
"linux-image-${kernel}:${arch}" \
ncurses-base \
"zlib1g:${arch}"
cd /qemu
# Install packages
root="root-${arch}"
mkdir -p "${root}"/{bin,etc/dropbear,root,sys,dev,proc,sbin,tmp,usr/{bin,sbin},var/log}
for deb in "${arch}"/*deb; do
dpkg -x "${deb}" "${root}"/
done
cp "${root}/boot/vmlinu"* kernel
# initrd
mkdir -p "${root}/modules"
cp -v \
"${root}/lib/modules"/*/kernel/drivers/net/net_failover.ko \
"${root}/lib/modules"/*/kernel/drivers/net/virtio_net.ko \
"${root}/lib/modules"/*/kernel/drivers/virtio/* \
"${root}/lib/modules"/*/kernel/fs/netfs/netfs.ko \
"${root}/lib/modules"/*/kernel/fs/9p/9p.ko \
"${root}/lib/modules"/*/kernel/fs/fscache/fscache.ko \
"${root}/lib/modules"/*/kernel/net/9p/9pnet.ko \
"${root}/lib/modules"/*/kernel/net/9p/9pnet_virtio.ko \
"${root}/lib/modules"/*/kernel/net/core/failover.ko \
"${root}/modules" || true # some file may not exist
rm -rf "${root:?}/boot"
rm -rf "${root:?}/lib/modules"
cat << 'EOF' > "${root}/etc/hosts"
127.0.0.1 localhost qemu
EOF
cat << 'EOF' > $root/etc/hostname
qemu
EOF
cat << 'EOF' > $root/etc/passwd
root::0:0:root:/root:/bin/sh
EOF
cat << 'EOF' | uudecode -o $root/etc/dropbear/dropbear_rsa_host_key
begin 600 dropbear_rsa_host_key
M````!W-S:"UR<V$````#`0`!```!`0"N!-<%K,3Z.!Z,OEMB2.N\O.$IWQ*F
M#5%(_;(^2YKY_J_.RQW/7U@_MK&J#!Z0_\;EH#98ZW*E1\.<FF%P/*Y.W56-
M31.'EJE`TN@=T5EC(8"Y%3'ZBYH)^WIVJ]S*G/_;#RH\_?S"U^1L_<<.F`O+
MZVI?*]\KTDOT&QV0#B-M;"%_7:\>+3[X=QMH,B<HM$+0E[\B6*^!XKLR@V,K
M)<V80HHK:_#;D]26XKN&CB./EZAC%4)78R!G""4HT@UK<5I4B^$/""`,?*\T
M>*4$RYULV,V3X6]K:7@Q?80"#WXGGQZNFN6CZ7LTDX(F6J[\]F5<0`HEOF:Z
MX;^53`L'4I/A```!``$L:$Z*#6<^3@+O%.[-#/5H+.C'3\#QQZN[1;J>L`8I
MZ_&T'!"J'/Y+?R?55G:M^=]R*-&I3TOJYZA8@&H51ZOAF59'1_>>Z@?E4#)$
MQU)X/RWH51ZB5KSDWJS:D'7GD(!?NAY`C'7\)I:_4)J")QBV/P"RJQGHG'%B
M1BT2LE6676>`1K,0\NIMZTKQNB(IC+88<7#8%_-=P<&6<"9LH>60TSS?3?-C
MN`T36YB/3^<(Q;`N1NT>I9EZS`BAC^-?.:,R\7EL"<4>7E=]^1]B\K9])AQU
MBM\]M;4V(S(6KH-I.4[6>9E+@\UEM.J6:[2LUEEJDG:G:+:/EVF^Y75@(S$`
M``"!`.O+KW=&*CBCHL"11&SVO4/K]$R-]7MV7,3RR)Q[X'0;6.?4JHW!3VR6
M*FGBY--37ZD-+UV.8_+"$<?B"#&K$.[V)F7V2\UY!7(0FZ@A2`0ADDY*J-_B
M4AU&.*GP#F/!I([:?E],.>6PH9)(/E.\G19#G0K`LRM?JWS!58&;D0C1````
M@0"\[@NYWSTW(?Q@:_A*1Y3/AKYO5?S=0"<2>#V-AH6W-NCSDTSRP=2D79FS
M"D?[;.)V>8'#9&I3"MU@+:2\Z%$0-MG0+J'(0>T1_C6?*C=4U0I$DI<=@D]1
H_&DE8Y(OT%%EPG]!$H&5HX*),_D1A2\P=R.7G'`0L%YM-79Y"T">$0``
`
end
EOF
# dropbear complains when this file is missing
touch "${root}/var/log/lastlog"
cat << 'EOF' > $root/init
#!/bin/busybox sh
set -e
/bin/busybox --install
mount -t devtmpfs devtmpfs /dev
mount -t proc none /proc
mount -t sysfs none /sys
mkdir /dev/pts
mount -t devpts none /dev/pts/
# some archs does not have virtio modules
insmod /modules/failover.ko || true
insmod /modules/net_failover.ko || true
insmod /modules/virtio.ko || true
insmod /modules/virtio_ring.ko || true
insmod /modules/virtio_mmio.ko || true
insmod /modules/virtio_pci_legacy_dev.ko || true
insmod /modules/virtio_pci_modern_dev.ko || true
insmod /modules/virtio_pci.ko || true
insmod /modules/virtio_net.ko || true
insmod /modules/netfs.ko || true
insmod /modules/fscache.ko
insmod /modules/9pnet.ko
insmod /modules/9pnet_virtio.ko || true
insmod /modules/9p.ko
ifconfig lo 127.0.0.1
ifconfig eth0 10.0.2.15
route add default gw 10.0.2.2 eth0
mkdir /target
mount -t 9p -o trans=virtio target /target -oversion=9p2000.u || true
exec dropbear -F -E -B
EOF
chmod +x "${root}/init"
cd "${root}"
find . | cpio --create --format='newc' --quiet | gzip > ../initrd.gz
cd -
# Clean up
rm -rf "/qemu/${root}" "/qemu/${arch}"
mv -f /etc/apt/sources.list.bak /etc/apt/sources.list
if [ -f /etc/dpkg/dpkg.cfg.d/multiarch.bak ]; then
mv /etc/dpkg/dpkg.cfg.d/multiarch.bak /etc/dpkg/dpkg.cfg.d/multiarch
fi
# can fail if arch is used (amd64 and/or i386)
dpkg --remove-architecture "${arch}" || true
apt-get update
purge_packages
ls -lh /qemu
}
main "${@}"