version 1.6, 2021/10/14 02:39:43 |
version 1.93, 2021/12/21 02:09:03 |
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#!/bin/ksh |
#!/bin/ksh |
set -e |
# $OpenBSD$ |
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# |
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# Copyright (c) 2021 Andrew Hewus Fresh <afresh1@openbsd.org> |
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# |
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# Permission to use, copy, modify, and distribute this software for any |
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# purpose with or without fee is hereby granted, provided that the above |
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# copyright notice and this permission notice appear in all copies. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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scan_dmesg() { |
set -o errexit -o pipefail -o nounset |
# no bsort for now |
set +o monitor |
sed -n "$1" /var/run/dmesg.boot |
export PATH=/usr/bin:/bin:/usr/sbin:/sbin |
} |
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installed_firmware() { |
CFILE=SHA256.sig |
for fw in ${PKGDIR}/$1-firmware*; do |
DESTDIR=${DESTDIR:-} |
[ -e "$fw" ] || continue |
FWPATTERNS="${DESTDIR}/usr/share/misc/firmware_patterns" |
echo ${fw##*/} |
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done |
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} |
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# do_as, unpriv, and unpriv2 are from install.sub |
VNAME=${VNAME:-$(sysctl -n kern.osrelease)} |
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VERSION=${VERSION:-"${VNAME%.*}${VNAME#*.}"} |
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# Run a command ($2+) as unprivileged user ($1). |
HTTP_FWDIR="$VNAME" |
# Take extra care that after "cmd" no "user" processes exist. |
VTYPE=$( sed -n "/^OpenBSD $VNAME\([^ ]*\).*$/s//\1/p" \ |
# |
/var/run/dmesg.boot | sed '$!d' ) |
# Optionally: |
[[ $VTYPE == -!(stable) ]] && HTTP_FWDIR=snapshots |
# - create "file" and chown it to "user" |
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# - after "cmd", chown "file" back to root |
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# |
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# Usage: do_as user [-f file] cmd |
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do_as() { |
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(( $# >= 2 )) || return |
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local _file _rc _user=$1 |
FWURL=http://firmware.openbsd.org/firmware/${HTTP_FWDIR} |
shift |
FWPUB_KEY=${DESTDIR}/etc/signify/openbsd-${VERSION}-fw.pub |
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if [[ $1 == -f ]]; then |
DOWNLOAD=true |
_file=$2 |
INSTALL=true |
shift 2 |
LOCALSRC= |
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tmpdir() { |
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local _i=1 _dir |
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# If we're not in the installer, |
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# we have mktemp and a more hostile environment. |
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if [ -x /usr/bin/mktemp ]; then |
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_dir=$( mktemp -d "${1}-XXXXXXXXX" ) |
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else |
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until _dir="${1}.$_i.$RANDOM" && mkdir -- "$_dir" 2>/dev/null; do |
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((++_i < 10000)) || return 1 |
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done |
fi |
fi |
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if [[ -n $_file ]]; then |
echo "$_dir" |
>$_file |
} |
chown "$_user" "$_file" |
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fetch() { |
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local _src="${FWURL}/${1##*/}" _dst=$1 _user=_file _pid _exit _error='' |
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# If we're not in the installer, |
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# we have su(1) and doas(1) is unlikely to be configured. |
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set -o monitor # make sure ftp gets its own process group |
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( |
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if [ -x /usr/bin/su ]; then |
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exec /usr/bin/su -s /bin/ksh "$_user" -c \ |
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"/usr/bin/ftp -D 'Get/Verify' -Vm -o- '$_src'" > "$_dst" |
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else |
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exec /usr/bin/doas -u "$_user" \ |
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/usr/bin/ftp -D 'Get/Verify' -Vm -o- "$_src" > "$_dst" |
fi |
fi |
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) & _pid=$! |
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set +o monitor |
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doas -u "$_user" "$@" |
trap "kill -TERM '-$_pid'; exit 1" EXIT INT QUIT ABRT TERM |
_rc=$? |
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while doas -u "$_user" kill -9 -1 2>/dev/null; do |
SECONDS=0 |
echo "Processes still running for user $_user after: $@" |
_last=0 |
sleep 1 |
while kill -0 -"$_pid" 2>/dev/null; do |
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if [[ $SECONDS -gt 12 ]]; then |
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set -- $( ls -ln "$_dst" 2>/dev/null ) |
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if [[ $_last -ne $5 ]]; then |
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_last=$5 |
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SECONDS=0 |
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sleep 1 |
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else |
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kill -INT -"$_pid" |
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_error=" (timed out)" |
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fi |
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else |
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sleep 1 |
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fi |
done |
done |
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[[ -n $_file ]] && chown root "$_file" |
set +o errexit |
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wait "$_pid" |
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_exit=$? |
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set -o errexit |
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return $_rc |
trap "" EXIT INT QUIT ABRT TERM |
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if [ "$_exit" -ne 0 ]; then |
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rm -f "$_dst" |
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echo "Cannot fetch $_src$_error" >&2 |
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return 1 |
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fi |
} |
} |
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unpriv() { |
verify() { |
do_as _sndio "$@" |
# On the installer we don't get sha256 -C, so fake it. |
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if ! fgrep -qx "SHA256 (${1##*/}) = $( /bin/sha256 -qb "$1" )" "$CFILE"; then |
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echo "Checksum test for ${1##*/} failed." >&2 |
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return 1 |
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fi |
} |
} |
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unpriv2() { |
devices_needing_firmware() { |
do_as _file "$@" |
local _d _m _line _dmesgtail _last='' _nl=$( echo ) |
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# When we're not in the installer, the dmesg.boot can |
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# contain multiple boots, so only look in the last one |
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_dmesgtail="$( echo ; sed -n 'H;/^OpenBSD/h;${g;p;}' /var/run/dmesg.boot | |
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grep -e "^[a-z][a-z]*[0-9]" -e " not configured " )" |
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grep -v '^[[:space:]]*#' "$FWPATTERNS" | |
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while read -r _d _m; do |
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[ "$_d" = "$_last" ] && continue |
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[ "$_m" ] || _m="${_nl}${_d}[0-9] at " |
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[ "$_m" = "${_m#^}" ] || _m="${_nl}${_m#^}" |
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if [[ $_dmesgtail = *$_m* ]]; then |
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echo "$_d" |
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_last="$_d" |
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fi |
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done |
} |
} |
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set -A _KERNV -- $( scan_dmesg '/^OpenBSD \([1-9][0-9]*\.[0-9]\)\([^ ]*\) .*/ { s//\1 \2/p; q; }' ) |
firmware_filename() { |
VNAME=${_KERNV[0]} |
local _f |
OSDIR=$VNAME |
_f="$( sed -n "s/.*(\($1-firmware-.*\.tgz\)).*/\1/p" "$CFILE" | sed '$!d' )" |
if ((${#_KERNV[*]} > 1)) && [ "$_KERNV[1]" = "-current" -o "$_KERNV[1]" = "-beta" ]; then |
! [ "$_f" ] && echo "Unable to find firmware for $1" >&2 && return 1 |
OSDIR=snapshots |
echo "$_f" |
fi |
} |
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FWURL=http://firmware.openbsd.org/firmware/${OSDIR} |
firmware_devicename() { |
PKGDIR=${DESTDIR}/var/db/pkg |
local _d="${1##*/}" |
PATTERNS="file:${0%/*}/firmware_patterns" |
_d="${_d%-firmware-*}" |
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echo "$_d" |
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} |
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drivers=$( |
installed_firmware() { |
last='' |
for fw in "${DESTDIR}/var/db/pkg/$1-firmware"*; do |
ftp -D "Detecting" -Vmo- $PATTERNS | |
[ -e "$fw" ] || continue |
while read d m; do |
echo "${fw##*/}" |
grep=grep |
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[ "$last" = "$d" ] && continue |
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[ "$m" ] || m="^$d[0-9][0-9]* at " |
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[ "$m" = "${m#^}" ] && grep=fgrep |
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$grep -q "$m" /var/run/dmesg.boot || continue |
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echo $d |
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last=$d |
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done |
done |
) |
} |
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if [ -z "$drivers" ]; then |
add_firmware () { |
echo "No devices found which need firmware files to be downloaded." >&2 |
local _f="${1##*/}" |
exit 0 |
local _pkgdir="${DESTDIR}/var/db/pkg/${_f%.tgz}" |
fi |
ftp -D "Install" -Vmo- "file:${1}" | |
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tar -s ",^\+,${_pkgdir}/+," \ |
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-s ",^firmware,${DESTDIR}/etc/firmware," \ |
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-C / -zxphf - "+*" "firmware/*" |
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tmpdir=${DESTDIR}/tmp/fw_update |
# TODO: Should we mark these so real fw_update can -Drepair? |
[ -e "$tmpdir" ] && rm -rf "$tmpdir" |
ed -s "${_pkgdir}/+CONTENTS" <<EOL |
mkdir -p "$tmpdir" |
/^@comment pkgpath/ -1a |
cd "$tmpdir" |
@option manual-installation |
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@option firmware |
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@comment install-script |
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. |
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w |
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EOL |
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} |
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# TODO: Drop privs during fetch and verify |
delete_firmware() { |
ftp -D Get -Vm "$FWURL/SHA256.sig" |
local _cwd _pkg="$1" _pkgdir="${DESTDIR}/var/db/pkg" |
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# Probably should bundle the firmware sigfile on the installer, |
# TODO: Check hash for files before deleting |
# although we can just get it from the recently installed system. |
echo "Uninstalling $_pkg" |
if [ "$DESTDIR" ]; then |
_cwd="${_pkgdir}/$_pkg" |
sigfile=$( sed -n '/^untrusted comment: verify with \(.*\)$/ { s//\1/p; q; }' SHA256.sig ) |
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if [ ! -e "/etc/signify/$sigfile" ] \ |
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&& [ -e "${DESTDIR}/etc/signify/$sigfile" ]; then |
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cp -a "${DESTDIR}/etc/signify/$sigfile" "/etc/signify/$sigfile" |
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fi |
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fi |
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signify -Ve -x SHA256.sig -m - < SHA256.sig > SHA256 |
set -A _remove -- "${_cwd}/+CONTENTS" "${_cwd}" |
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for d in $drivers; do |
while read -r c g; do |
firmware=$( sed -n "s/.*(\($d-firmware-.*\.tgz\)).*/\1/p" SHA256 ) |
case $c in |
installed=$( installed_firmware $d ) |
@cwd) _cwd="${DESTDIR}$g" |
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;; |
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@*) continue |
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;; |
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*) set -A _remove -- "$_cwd/$c" "${_remove[@]}" |
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;; |
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esac |
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done < "${_pkgdir}/${_pkg}/+CONTENTS" |
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for i in $installed; do |
# We specifically rm -f here because not removing files/dirs |
if [ "$firmware" = "$i.tgz" ]; then |
# is probably not worth failing over. |
echo "Firmware for $d already installed ($installed)" |
for _r in "${_remove[@]}" ; do |
continue 2 |
if [ -d "$_r" ]; then |
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# Try hard not to actually remove recursively |
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# without rmdir on the install media. |
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[ "$_r/*" = "$( echo "$_r"/* )" ] && rm -rf "$_r" |
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else |
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rm -f "$_r" |
fi |
fi |
done |
done |
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} |
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mkdir $d |
usage() { |
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echo "usage: ${0##*/} [-D | -L] [driver | file ...]" |
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exit 2 |
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} |
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# TODO: Drop privs during fetch and verify |
OPT_D= |
ftp -D "Get/Verify" -Vmo- "$FWURL/$firmware" | sha256 -bph "$d/h" > "$firmware" |
OPT_L= |
fgrep -qx "SHA256 ($firmware) = $(<$d/h)" SHA256 |
while getopts DL name |
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do |
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case "$name" in |
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D) OPT_D=true ;; |
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L) OPT_L=true ;; |
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?) usage 2 ;; |
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esac |
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done |
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shift $((OPTIND - 1)) |
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# TODO: Check hash for files before deleting |
[ "$OPT_D" ] && [ "$OPT_L" ] && usage 1 |
if [ "$installed" ] && [ -e "${PKGDIR}/$installed/+CONTENTS" ]; then |
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echo "Uninstalling $installed" |
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cwd=${PKGDIR}/$installed |
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remove="${cwd}/+CONTENTS ${cwd}" |
if [ "$OPT_D" ]; then |
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# "Download only" means local dir and don't install |
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INSTALL=false |
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LOCALSRC=. |
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elif [ "$OPT_L" ]; then |
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# "Local" means don't download, install from local dir |
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DOWNLOAD=false |
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LOCALSRC=. |
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else |
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LOCALSRC="$( tmpdir "${DESTDIR}/tmp/fw_install" )" |
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fi |
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while read c g; do |
CFILE="$LOCALSRC/$CFILE" |
case $c in |
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@cwd) cwd=$g |
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;; |
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@*) continue |
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;; |
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*) remove="$cwd/$c $remove" |
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;; |
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esac |
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done < "${PKGDIR}/$installed/+CONTENTS" |
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for r in $remove ; do |
set -A devices -- "$@" |
if [ -d "$r" ]; then |
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# Try hard not to actually remove recursively |
if [ ! "${devices[*]:-}" ]; then |
# without rmdir on the install media. |
echo -n "Detecting firmware ..." |
[ "$r/*" = $( echo "$r"/* ) ] && rm -rf "$r" |
set -A devices -- $( devices_needing_firmware ) |
else |
[ "${devices[*]:-}" ] && echo " found." || echo " done." |
rm -f "$r" |
fi |
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[ "${devices[*]:-}" ] || exit |
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if "$DOWNLOAD"; then |
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fetch "$CFILE" |
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! signify -qVep "$FWPUB_KEY" -x "$CFILE" -m "$CFILE" && |
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echo "Signature check of SHA256.sig failed" >&2 && exit 1 |
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fi |
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for f in "${devices[@]}"; do |
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d="$( firmware_devicename "$f" )" |
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if [ "$f" = "$d" ]; then |
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f=$( firmware_filename "$d" || true ) |
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[ "$f" ] || continue |
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f="$LOCALSRC/$f" |
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elif ! "$INSTALL" && ! grep -Fq "($f)" "$CFILE" ; then |
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echo "Cannot download local file $f" >&2 |
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exit 2 |
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fi |
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set -A installed -- $( installed_firmware "$d" ) |
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if "$INSTALL" && [ "${installed[*]:-}" ]; then |
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for i in "${installed[@]}"; do |
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if [ "${f##*/}" = "$i.tgz" ]; then |
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echo "$i already installed" |
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continue 2 |
fi |
fi |
done |
done |
fi |
fi |
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# TODO: Add some details about the install to +CONTENTS like pkg_add |
if [ -e "$f" ]; then |
# TODO: Or, maybe we save the firmware someplace and make pkg_add reinstall |
if "$DOWNLOAD"; then |
echo "Installing $firmware" |
echo "Verify existing ${f##*/}" |
tar -zxphf "$firmware" -C /etc "firmware/*" |
verify "$f" || continue |
mkdir -p ${PKGDIR}/${firmware%.tgz}/ |
# else assume it was verified when downloaded |
tar -zxphf "$firmware" -C "${PKGDIR}/${firmware%.tgz}" "+*" |
fi |
ed -s "${PKGDIR}/${firmware%.tgz}/+CONTENTS" <<EOL |
elif "$DOWNLOAD"; then |
/^@comment pkgpath/ -1a |
fetch "$f" || continue |
@option manual-installation |
verify "$f" || continue |
@option firmware |
elif "$INSTALL"; then |
@comment install-script |
echo "Cannot install ${f##*/}, not found" >&2 |
. |
continue |
w |
fi |
EOL |
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"$INSTALL" || continue |
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if [ "${installed[*]:-}" ]; then |
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for i in "${installed[@]}"; do |
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delete_firmware "$i" |
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done |
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fi |
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add_firmware "$f" |
done |
done |
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