File: [local] / openbsd / fw_update / fw_install.sh (download)
Revision 1.10, Sun Oct 17 02:05:29 2021 UTC (2 years, 8 months ago) by afresh1
Branch: MAIN
Changes since 1.9: +6 -6 lines
Use array for files to remove
They could have spaces I guess
|
#!/bin/ksh
set -e
scan_dmesg() {
# no bsort for now
sed -n "$1" /var/run/dmesg.boot
}
installed_firmware() {
for fw in ${PKGDIR}/$1-firmware*; do
[ -e "$fw" ] || continue
echo ${fw##*/}
done
}
# tmpdir, do_as, unpriv, and unpriv2 are from install.sub
# Create a temporary directory based on the supplied directory name prefix.
tmpdir() {
local _i=1 _dir
until _dir="${1?}.$_i.$RANDOM" && mkdir -- "$_dir" 2>/dev/null; do
((++_i < 10000)) || return 1
done
echo "$_dir"
}
# Run a command ($2+) as unprivileged user ($1).
# Take extra care that after "cmd" no "user" processes exist.
#
# Optionally:
# - create "file" and chown it to "user"
# - after "cmd", chown "file" back to root
#
# Usage: do_as user [-f file] cmd
do_as() {
(( $# >= 2 )) || return
local _file _rc _user=$1
shift
if [[ $1 == -f ]]; then
_file=$2
shift 2
fi
if [[ -n $_file ]]; then
>$_file
chown "$_user" "$_file"
fi
doas -u "$_user" "$@"
_rc=$?
while doas -u "$_user" kill -9 -1 2>/dev/null; do
echo "Processes still running for user $_user after: $@"
sleep 1
done
[[ -n $_file ]] && chown root "$_file"
return $_rc
}
unpriv() {
do_as _sndio "$@"
}
unpriv2() {
do_as _file "$@"
}
_issue=
fail() {
echo $_issue >&2
exit 1
}
VNAME=$(sysctl -n kern.osrelease)
VERSION="${VNAME%.*}${VNAME#*.}"
FWDIR="$VNAME"
HTTP_FWDIR=$FWDIR
set -- $(scan_dmesg "/^OpenBSD $VNAME\([^ ]*\).*$/s//\1/p")
[[ $1 == -!(stable) ]] && HTTP_FWDIR=snapshots
FWURL=http://firmware.openbsd.org/firmware/${HTTP_FWDIR}
FWPUB_KEY=${DESTDIR}/etc/signify/openbsd-${VERSION}-fw.pub
PKGDIR=${DESTDIR}/var/db/pkg
PATTERNS="file:${0%/*}/firmware_patterns"
drivers=$(
last=''
ftp -D "Detecting" -Vmo- $PATTERNS |
while read d m; do
grep=grep
[ "$last" = "$d" ] && continue
[ "$m" ] || m="^$d[0-9][0-9]* at "
[ "$m" = "${m#^}" ] && grep=fgrep
$grep -q "$m" /var/run/dmesg.boot || continue
echo $d
last=$d
done
)
if [ -z "$drivers" ]; then
echo "No devices found which need firmware files to be downloaded." >&2
exit 0
fi
_src=$FWURL
if _tmpsrc=$( tmpdir "${DESTDIR}/tmp/fw_update" ); then
(
>$_tmpsrc/t &&
$_unpriv cat $_tmpsrc/t
) >/dev/null 2>&1 ||
rm -r $_tmpsrc
fi
[[ ! -d $_tmpsrc ]] &&
_issue="Cannot create prefetch area" && fail
cd "$_tmpsrc"
_t=Get
_cfile="$_tmpsrc/SHA256"
_srclocal=false
! $_unpriv ftp -D "$_t" -Vmo - "$_src/SHA256.sig" >"$_cfile.sig" &&
_issue="Cannot fetch SHA256.sig" && fail
# Verify signature file with public keys.
! unpriv -f "$_cfile" \
signify -Vep $FWPUB_KEY -x "$_cfile.sig" -m "$_cfile" &&
_issue="Signature check of SHA256.sig failed" && fail
for d in $drivers; do
_f=$( sed -n "s/.*(\($d-firmware-.*\.tgz\)).*/\1/p" "$_cfile" )
installed=$( installed_firmware "$d" )
for i in $installed; do
if [ "$_f" = "$i.tgz" ]; then
echo "Firmware for $d already installed ($installed)"
continue 2
fi
done
rm -f /tmp/h /tmp/fail
_t=Get/Verify
# Fetch firmware file and create a checksum by piping through
# sha256. Create a flag file in case ftp failed. Firmware
# from net is written to the prefetch area.
( $_unpriv ftp -D "$_t" -Vmo - "$_src/$_f" || >/tmp/fail ) |
( $_srclocal && unpriv2 sha256 -b >/tmp/h ||
unpriv2 -f /tmp/h sha256 -bph /tmp/h >"$_tmpsrc/$_f" )
# Handle failed transfer.
if [[ -f /tmp/fail ]]; then
rm -f "$_tmpsrc/$_f"
_issue="Fetching of $_f failed!"
fail
fi
# Verify firmware by comparing its checksum with SHA256.
if fgrep -qx "SHA256 ($_f) = $(</tmp/h)" "$_cfile"; then
#_unver=$(rmel $_f $_unver)
true
else
[[ -d "$_tmpsrc" ]] && rm -rf "$_tmpsrc"
_issue="Checksum test for $_f failed."
fail
fi
# TODO: Check hash for files before deleting
if [ "$installed" ] && [ -e "${PKGDIR}/$installed/+CONTENTS" ]; then
echo "Uninstalling $installed"
cwd=${PKGDIR}/$installed
set -A _remove -- "${cwd}/+CONTENTS" "${cwd}"
while read c g; do
case $c in
@cwd) cwd=$g
;;
@*) continue
;;
*) set -A _remove -- "$cwd/$c" "${_remove[@]}"
;;
esac
done < "${PKGDIR}/$installed/+CONTENTS"
for _r in "${_remove[@]}"; do
if [ -d "$_r" ]; then
# Try hard not to actually remove recursively
# without rmdir on the install media.
[ "$_r/*" = $( echo "$_r"/* ) ] && rm -rf "$_r"
else
rm -f "$_r"
fi
done
fi
# TODO: Add some details about the install to +CONTENTS like pkg_add
# TODO: Or, maybe we save the firmware someplace and make pkg_add reinstall
echo "Installing $_f"
tar -zxphf "$_f" -C /etc "firmware/*"
mkdir -p ${PKGDIR}/${_f%.tgz}/
tar -zxphf "$_f" -C "${PKGDIR}/${_f%.tgz}" "+*"
ed -s "${PKGDIR}/${_f%.tgz}/+CONTENTS" <<EOL
/^@comment pkgpath/ -1a
@option manual-installation
@option firmware
@comment install-script
.
w
EOL
done