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Annotation of openbsd/fw_update/fw_install.sh, Revision 1.13

1.1       afresh1     1: #!/bin/ksh
                      2: set -e
                      3:
                      4: scan_dmesg() {
                      5:        # no bsort for now
                      6:        sed -n "$1" /var/run/dmesg.boot
                      7: }
                      8:
                      9: installed_firmware() {
                     10:        for fw in ${PKGDIR}/$1-firmware*; do
                     11:                [ -e "$fw" ] || continue
                     12:                echo ${fw##*/}
                     13:        done
                     14: }
                     15:
1.8       afresh1    16: # tmpdir, do_as, unpriv, and unpriv2 are from install.sub
                     17:
                     18: # Create a temporary directory based on the supplied directory name prefix.
                     19: tmpdir() {
                     20:        local _i=1 _dir
                     21:
                     22:        until _dir="${1?}.$_i.$RANDOM" && mkdir -- "$_dir" 2>/dev/null; do
                     23:                ((++_i < 10000)) || return 1
                     24:        done
                     25:        echo "$_dir"
                     26: }
1.6       afresh1    27:
                     28: # Run a command ($2+) as unprivileged user ($1).
                     29: # Take extra care that after "cmd" no "user" processes exist.
                     30: #
                     31: # Optionally:
                     32: #      - create "file" and chown it to "user"
                     33: #      - after "cmd", chown "file" back to root
                     34: #
                     35: # Usage: do_as user [-f file] cmd
                     36: do_as() {
                     37:        (( $# >= 2 )) || return
                     38:
                     39:        local _file _rc _user=$1
                     40:        shift
                     41:
                     42:        if [[ $1 == -f ]]; then
                     43:                _file=$2
                     44:                shift 2
                     45:        fi
                     46:
                     47:        if [[ -n $_file ]]; then
                     48:                >$_file
                     49:                chown "$_user" "$_file"
                     50:        fi
                     51:
                     52:        doas -u "$_user" "$@"
                     53:        _rc=$?
                     54:
                     55:        while doas -u "$_user" kill -9 -1 2>/dev/null; do
                     56:                echo "Processes still running for user $_user after: $@"
                     57:                sleep 1
                     58:        done
                     59:
                     60:        [[ -n $_file ]] && chown root "$_file"
                     61:
                     62:        return $_rc
                     63: }
                     64:
                     65: unpriv() {
                     66:        do_as _sndio "$@"
                     67: }
                     68:
                     69: unpriv2() {
                     70:        do_as _file "$@"
                     71: }
                     72:
1.8       afresh1    73: _issue=
                     74: fail() {
                     75:        echo $_issue >&2
                     76:        exit 1
                     77: }
                     78:
1.7       afresh1    79: VNAME=$(sysctl -n kern.osrelease)
                     80: VERSION="${VNAME%.*}${VNAME#*.}"
                     81: FWDIR="$VNAME"
1.1       afresh1    82:
1.7       afresh1    83: HTTP_FWDIR=$FWDIR
                     84: set -- $(scan_dmesg "/^OpenBSD $VNAME\([^ ]*\).*$/s//\1/p")
                     85: [[ $1 == -!(stable) ]] && HTTP_FWDIR=snapshots
                     86:
                     87: FWURL=http://firmware.openbsd.org/firmware/${HTTP_FWDIR}
                     88: FWPUB_KEY=${DESTDIR}/etc/signify/openbsd-${VERSION}-fw.pub
1.1       afresh1    89: PKGDIR=${DESTDIR}/var/db/pkg
                     90: PATTERNS="file:${0%/*}/firmware_patterns"
                     91:
1.11      afresh1    92: fw_update() {
                     93:        local _tmpsrc _f _remove _r
1.12      afresh1    94:        local _src=$FWURL _t=Get _cfile="/tmp/SHA256" _srclocal=false
1.11      afresh1    95:        local _drivers=$(
                     96:                last=''
                     97:                ftp -D "Detecting" -Vmo- $PATTERNS |
                     98:                while read d m; do
                     99:                        grep=grep
                    100:                        [ "$last" = "$d" ] && continue
                    101:                        [ "$m" ] || m="^$d[0-9][0-9]* at "
                    102:                        [ "$m" = "${m#^}" ] && grep=fgrep
                    103:                        $grep -q "$m" /var/run/dmesg.boot || continue
                    104:                        echo $d
                    105:                        last=$d
                    106:                done
                    107:        )
                    108:
                    109:        if [ -z "$_drivers" ]; then
                    110:                echo "No devices found which need firmware files to be downloaded." >&2
                    111:                return
                    112:        fi
1.1       afresh1   113:
1.11      afresh1   114:        if _tmpsrc=$( tmpdir "${DESTDIR}/tmp/fw_update" ); then
                    115:                (
                    116:                >$_tmpsrc/t &&
                    117:                $_unpriv cat $_tmpsrc/t
                    118:                ) >/dev/null 2>&1 ||
                    119:                    rm -r $_tmpsrc
                    120:        fi
1.1       afresh1   121:
1.11      afresh1   122:        [[ ! -d $_tmpsrc ]] &&
                    123:                _issue="Cannot create prefetch area" && fail
1.1       afresh1   124:
1.11      afresh1   125:        ! $_unpriv ftp -D "$_t" -Vmo - "$_src/SHA256.sig" >"$_cfile.sig" &&
                    126:            _issue="Cannot fetch SHA256.sig" && fail
1.1       afresh1   127:
1.11      afresh1   128:        # Verify signature file with public keys.
                    129:        ! unpriv -f "$_cfile" \
                    130:            signify -Vep $FWPUB_KEY -x "$_cfile.sig" -m "$_cfile" &&
                    131:            _issue="Signature check of SHA256.sig failed" && fail
                    132:
                    133:        for d in $_drivers; do
                    134:                _f=$( sed -n "s/.*(\($d-firmware-.*\.tgz\)).*/\1/p" "$_cfile" )
                    135:                installed=$( installed_firmware "$d" )
                    136:
                    137:                for i in $installed; do
                    138:                        if [ "$_f" = "$i.tgz" ]; then
                    139:                                echo "Firmware for $d already installed ($installed)"
                    140:                                continue 2
1.1       afresh1   141:                        fi
                    142:                done
                    143:
1.11      afresh1   144:                rm -f /tmp/h /tmp/fail
                    145:
                    146:                _t=Get/Verify
                    147:                # Fetch firmware file and create a checksum by piping through
                    148:                # sha256. Create a flag file in case ftp failed. Firmware
                    149:                # from net is written to the prefetch area.
                    150:                ( $_unpriv ftp -D "$_t" -Vmo - "$_src/$_f" || >/tmp/fail ) |
                    151:                ( $_srclocal && unpriv2 sha256 -b >/tmp/h ||
                    152:                    unpriv2 -f /tmp/h sha256 -bph /tmp/h >"$_tmpsrc/$_f" )
                    153:
                    154:                # Handle failed transfer.
                    155:                if [[ -f /tmp/fail ]]; then
                    156:                        rm -f "$_tmpsrc/$_f"
                    157:                        _issue="Fetching of $_f failed!"
                    158:                        fail
                    159:                fi
                    160:
                    161:                # Verify firmware by comparing its checksum with SHA256.
                    162:                if fgrep -qx "SHA256 ($_f) = $(</tmp/h)" "$_cfile"; then
                    163:                        #_unver=$(rmel $_f $_unver)
                    164:                        true
                    165:                else
                    166:                        [[ -d "$_tmpsrc" ]] && rm -rf "$_tmpsrc"
                    167:                        _issue="Checksum test for $_f failed."
                    168:                        fail
                    169:                fi
                    170:
                    171:                # TODO: Check hash for files before deleting
                    172:                if [ "$installed" ] && [ -e "${PKGDIR}/$installed/+CONTENTS" ]; then
                    173:                        echo "Uninstalling $installed"
                    174:                        cwd=${PKGDIR}/$installed
                    175:
                    176:                        set -A _remove -- "${cwd}/+CONTENTS" "${cwd}"
                    177:
                    178:                        while read c g; do
                    179:                                case $c in
1.13    ! afresh1   180:                                @cwd) cwd="${DESTDIR}/$g"
1.11      afresh1   181:                                  ;;
                    182:                                @*) continue
                    183:                                  ;;
                    184:                                *)  set -A _remove -- "$cwd/$c" "${_remove[@]}"
                    185:                                  ;;
                    186:                                esac
                    187:                        done < "${PKGDIR}/$installed/+CONTENTS"
                    188:
                    189:                        for _r in "${_remove[@]}" ; do
                    190:                                if [ -d "$_r" ]; then
                    191:                                        # Try hard not to actually remove recursively
                    192:                                        # without rmdir on the install media.
                    193:                                        [ "$_r/*" = $( echo "$_r"/* ) ] && rm -rf "$_r"
                    194:                                else
                    195:                                        rm -f "$_r"
                    196:                                fi
                    197:                        done
                    198:                fi
                    199:
                    200:         # TODO: Add some details about the install to +CONTENTS like pkg_add
                    201:         # TODO: Or, maybe we save the firmware someplace and make pkg_add reinstall
                    202:                echo "Installing $_f"
1.13    ! afresh1   203:                tar -zxphf "$_tmpsrc/$_f" -C "${DESTDIR}/etc" "firmware/*"
1.11      afresh1   204:                mkdir -p ${PKGDIR}/${_f%.tgz}/
1.12      afresh1   205:                tar -zxphf "$_tmpsrc/$_f" -C "${PKGDIR}/${_f%.tgz}" "+*"
1.11      afresh1   206:                ed -s "${PKGDIR}/${_f%.tgz}/+CONTENTS" <<EOL
1.1       afresh1   207: /^@comment pkgpath/ -1a
                    208: @option manual-installation
                    209: @option firmware
                    210: @comment install-script
                    211: .
                    212: w
                    213: EOL
1.11      afresh1   214:        done
                    215: }
1.1       afresh1   216:
1.11      afresh1   217: fw_update

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