The bootloader will now load the /boot/random.seed file if it exists, in which case the kernel will use it as the initial kernel entropy. The kernel warns if no random seed was loaded, unless the --no-random-seed option was given. This option is used for live environments that inherently have no prior secret state. The kernel initializes its entropy pool from the random seed as of the first things, so randomness is available very early on. init(8) will emit a fresh /boot/random.seed file on boot to avoid the same entropy being used twice. init(8) also writes out /boot/random.seed on system shutdown where the system has the most entropy. init(8) will warn if writing the file fails, except if /boot is a real-only filesystem, and keeping such state is impossible. The system administrator is then responsible for ensuring the bootloader somehow passes a fresh random seed on the next boot. /boot/random.seed must be owned by the root user and root group and must have file permissions 600 to avoid unprivileged users can read it. The file is passed to the kernel by the bootloader as a multiboot module with the command line --random-seed. If no random seed is loaded, the kernel attempts a poor quality fallback where it seeds the kernel arc4random(3) continuously with the current time. The timing variance may provide some effective entropy. There is no real kernel entropy gathering yet. The read of the CMOS real time clock is moved to an early point in the kernel boot, so the current time is available as fallback entropy. The kernel access of the random seed module is supposed to be infallible and happens before the kernel log is set up, but there is not yet a failsafe API for mapping single pages in the early kernel. sysupgrade(8) creates /boot/random.seed if it's absent as a temporary compatibility measure for people upgrading from the 1.0 release. The GRUB port will need to be upgraded with support for /boot/random.seed in the 10_sortix script. Installation with manual bootloader configuration will need to load the random seed with the --random-seed command line. With GRUB, this can be done with: module /boot/random.seed --random-seed
354 lines
6.7 KiB
Bash
Executable file
354 lines
6.7 KiB
Bash
Executable file
#!/bin/sh -e
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this=$(which -- "$0")
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thisdir=$(dirname -- "$this")
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platform=
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directory=
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version=
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dashdash=
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previous_option=
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for argument do
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if test -n "$previous_option"; then
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eval $previous_option=\$argument
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previous_option=
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continue
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fi
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case $argument in
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*=?*) parameter=$(expr "X$argument" : '[^=]*=\(.*\)') ;;
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*=) parameter= ;;
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*) parameter=yes ;;
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esac
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case $dashdash$argument in
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--) dashdash=yes ;;
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--platform=*) platform=$parameter ;;
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--platform) previous_option=platform ;;
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--version=*) version=$parameter ;;
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--version) previous_option=version ;;
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-*) echo "$0: unrecognized option $argument" >&2
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exit 1 ;;
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*) directory="$argument" ;;
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esac
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done
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if test -n "$previous_option"; then
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echo "$0: option '$argument' requires an argument" >&2
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exit 1
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fi
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if test -z "$platform"; then
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echo "$0: platform wasn't set with --platform" >&2
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exit 1
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fi
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if test -z "$version"; then
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echo "$0: platform wasn't set with --version" >&2
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exit 1
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fi
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if test -z "$directory"; then
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echo "$0: no directory operand supplied" >&2
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exit 1
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fi
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machine=$(expr x"$platform" : 'x\([^-]*\).*')
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maybe_compressed() {
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if [ -e "$1.xz" ]; then
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echo "$1.xz"
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elif [ -e "$1.gz" ]; then
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echo "$1.gz"
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elif [ -e "$1" ]; then
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echo "$1"
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fi
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}
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human_size() {
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LC_ALL=C du -bh "$1" | grep -Eo '^[^[:space:]]+'
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}
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portvar() {
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echo "$1" | sed -e 's/-/_/g' -e 's/+/x/g'
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}
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isinset() {
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(for port in $2; do
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if [ x"$1" = x"$port" ]; then
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echo true
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exit 0
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fi
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done
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echo false
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exit 0)
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}
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. "$thisdir/ports.conf"
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cd "$directory"
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kernel=$(maybe_compressed boot/sortix.bin)
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live_initrd=$(maybe_compressed boot/live.initrd)
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overlay_initrd=$(maybe_compressed boot/overlay.initrd)
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src_initrd=$(maybe_compressed boot/src.initrd)
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system_initrd=$(maybe_compressed boot/system.initrd)
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ports=$(ls repository | sed 's/\.tix\.tar\.xz//')
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mkdir -p boot/grub
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exec > boot/grub/grub.cfg
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cat << EOF
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insmod part_msdos
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insmod ext2
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EOF
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find . | grep -Eq '\.gz$' && echo "insmod gzio"
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find . | grep -Eq '\.xz$' && echo "insmod xzio"
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echo
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cat << EOF
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insmod all_video
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if loadfont unicode; then
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insmod gfxterm
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terminal_output gfxterm
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fi
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set menu_title="Sortix $version for $machine"
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set timeout=10
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set default="0"
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export menu_title
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export timeout
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export default
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EOF
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if [ -n "$ports" ]; then
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echo
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for port in $ports; do
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printf 'port_%s=true\n' "$(portvar "$port")"
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done
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for port in $ports; do
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printf 'tix_%s=false\n' "$(portvar "$port")"
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done
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echo
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for port in $ports; do
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printf 'export port_%s\n' "$(portvar "$port")"
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done
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for port in $ports; do
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printf 'export tix_%s\n' "$(portvar "$port")"
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done
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fi
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echo
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cat << EOF
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. /boot/grub/main.cfg
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EOF
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exec > boot/grub/main.cfg
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printf "function load_base {\n"
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case $platform in
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x86_64-*)
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cat << EOF
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if ! cpuid -l; then
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echo "Error: You cannot run this 64-bit operating system because this" \
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"computer has no 64-bit mode."
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read
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exit
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fi
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EOF
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;;
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esac
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cat << EOF
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echo -n "Loading /$kernel ($(human_size $kernel)) ... "
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multiboot /$kernel --no-random-seed "\$@"
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echo done
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EOF
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for initrd in $system_initrd $src_initrd $live_initrd $overlay_initrd; do
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cat << EOF
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echo -n "Loading /$initrd ($(human_size $initrd)) ... "
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module /$initrd
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echo done
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EOF
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done
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printf "}\n"
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echo
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printf "function load_ports {\n"
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if [ -z "$ports" ]; then
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printf "\ttrue\n"
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fi
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for port in $ports; do
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tix=repository/$port.tix.tar.xz
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cat << EOF
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if \$tix_$(portvar "$port"); then
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echo -n "Loading /$tix ($(human_size $tix)) ... "
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module --nounzip /$tix --to /$tix
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echo done
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fi
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if \$port_$(portvar "$port"); then
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echo -n "Loading /$tix ($(human_size $tix)) ... "
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module /$tix --tix
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echo done
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fi
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EOF
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done
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printf "}\n"
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echo
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cat << EOF
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function load_sortix {
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load_base "\$@"
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load_ports
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}
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EOF
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menuentry() {
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echo
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printf "menuentry \"Sortix (%s)\" {\n" "$1"
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if [ -n "$2" ]; then
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printf "\tload_sortix %s\n" "$2"
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#printf "\tload_sortix '"
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#printf '%s' "$2" | sed "s,','\\'',g"
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#printf "'\n"
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else
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printf "\tload_sortix\n"
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fi
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printf "}\n"
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}
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menuentry "live environment" ''
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menuentry "new installation" '--init="/sbin/init --target=sysinstall"'
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menuentry "upgrade existing installation" '--init="/sbin/init --target=sysupgrade"'
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echo
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cat << EOF
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menuentry "Select ports..." {
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configfile /boot/grub/ports.cfg
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}
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menuentry "Advanced..." {
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configfile /boot/grub/advanced.cfg
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}
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EOF
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exec > boot/grub/advanced.cfg
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cat << EOF
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menuentry "Back..." {
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menu=main
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configfile /boot/grub/main.cfg
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}
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menuentry "Select binary packages..." {
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configfile /boot/grub/tix.cfg
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}
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EOF
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exec > boot/grub/ports.cfg
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cat << EOF
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menuentry "Back..." {
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menu=main
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configfile /boot/grub/main.cfg
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}
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EOF
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echo
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printf 'menuentry "Load all ports" {'
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for port in $ports; do
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printf " port_%s=true\n" "$(portvar "$port")"
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done
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printf ' configfile /boot/grub/ports.cfg\n'
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printf '}\n'
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for set in $sets; do
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echo
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set_content=$(eval echo \$set_$set)
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printf 'menuentry "Load only '"$set"' ports" {'
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for port in $ports; do
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printf " port_%s=%s\n" "$(portvar "$port")" "$(isinset "$port" "$set_content")"
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done
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printf ' configfile /boot/grub/ports.cfg\n'
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printf '}\n'
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done
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echo
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printf 'menuentry "Load no ports" {'
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for port in $ports; do
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printf " port_%s=false\n" "$(portvar "$port")"
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done
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printf ' configfile /boot/grub/ports.cfg\n'
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printf '}\n'
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echo
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for port in $ports; do
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cat << EOF
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if \$port_$(portvar "$port"); then
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menuentry "$port = true" {
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port_$(portvar "$port")=false
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configfile /boot/grub/ports.cfg
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}
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else
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menuentry "$port = false" {
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port_$(portvar "$port")=true
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configfile /boot/grub/ports.cfg
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}
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fi
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EOF
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done
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exec > boot/grub/tix.cfg
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cat << EOF
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menuentry "Back..." {
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menu=main
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configfile /boot/grub/advanced.cfg
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}
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EOF
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echo
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printf 'menuentry "Load all binary packages" {'
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for port in $ports; do
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printf " tix_%s=true\n" "$(portvar "$port")"
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done
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printf ' configfile /boot/grub/tix.cfg\n'
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printf '}\n'
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for set in $sets; do
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echo
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set_content=$(eval echo \$set_$set)
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printf 'menuentry "Load only '"$set"' binary packages" {'
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for port in $ports; do
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printf " tix_%s=%s\n" "$(portvar "$port")" "$(isinset "$port" "$set_content")"
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done
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printf ' configfile /boot/grub/tix.cfg\n'
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printf '}\n'
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done
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echo
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printf 'menuentry "Load no binary packages" {'
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for port in $ports; do
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printf " tix_%s=false\n" "$(portvar "$port")"
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done
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printf ' configfile /boot/grub/tix.cfg\n'
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printf '}\n'
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echo
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for port in $ports; do
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cat << EOF
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if \$tix_$(portvar "$port"); then
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menuentry "$port = true" {
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tix_$(portvar "$port")=false
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configfile /boot/grub/tix.cfg
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}
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else
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menuentry "$port = false" {
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tix_$(portvar "$port")=true
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configfile /boot/grub/tix.cfg
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}
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fi
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EOF
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done
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