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Annotation of openbsd/fw_update/fw_install.sh, Revision 1.17

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="$VNAME"
1.1       afresh1    82:
1.14      afresh1    83: # TODO: We need the firmware for the system we just installed
                     84: #       not the one we booted from.  For example:
                     85: #       * booting from a snapshot bsd.rd that thinks it is the 7.0 release
                     86: #         will install the firmware from the 7.0 directory instead of
                     87: #         from the snapshots dir.
                     88: #       If they're using sysupgrade, then the installer kernel will be correct.
                     89: #       If we're doing this in the installer we can check what they picked
                     90: #       for downloading sets and use that value.
                     91: #       Otherwise, the fw_update after first boot will fix it up for us.
                     92:
1.7       afresh1    93: HTTP_FWDIR=$FWDIR
                     94: set -- $(scan_dmesg "/^OpenBSD $VNAME\([^ ]*\).*$/s//\1/p")
                     95: [[ $1 == -!(stable) ]] && HTTP_FWDIR=snapshots
                     96:
                     97: FWURL=http://firmware.openbsd.org/firmware/${HTTP_FWDIR}
                     98: FWPUB_KEY=${DESTDIR}/etc/signify/openbsd-${VERSION}-fw.pub
1.1       afresh1    99: PKGDIR=${DESTDIR}/var/db/pkg
                    100: PATTERNS="file:${0%/*}/firmware_patterns"
                    101:
1.11      afresh1   102: fw_update() {
1.15      afresh1   103:        local _tmpsrc _f _r _remove _i _installed
1.12      afresh1   104:        local _src=$FWURL _t=Get _cfile="/tmp/SHA256" _srclocal=false
1.15      afresh1   105:        local _d _drivers=$(
1.11      afresh1   106:                last=''
                    107:                ftp -D "Detecting" -Vmo- $PATTERNS |
1.15      afresh1   108:                while read _d _m; do
1.11      afresh1   109:                        grep=grep
1.15      afresh1   110:                        [ "$last" = "$_d" ] && continue
                    111:                        [ "$_m" ] || _m="^$_d[0-9][0-9]* at "
                    112:                        [ "$_m" = "${_m#^}" ] && grep=fgrep
                    113:                        $grep -q "$_m" /var/run/dmesg.boot || continue
                    114:                        echo $_d
                    115:                        last=$_d
1.11      afresh1   116:                done
                    117:        )
                    118:
                    119:        if [ -z "$_drivers" ]; then
                    120:                echo "No devices found which need firmware files to be downloaded." >&2
                    121:                return
                    122:        fi
1.1       afresh1   123:
1.11      afresh1   124:        if _tmpsrc=$( tmpdir "${DESTDIR}/tmp/fw_update" ); then
                    125:                (
                    126:                >$_tmpsrc/t &&
                    127:                $_unpriv cat $_tmpsrc/t
                    128:                ) >/dev/null 2>&1 ||
                    129:                    rm -r $_tmpsrc
                    130:        fi
1.1       afresh1   131:
1.11      afresh1   132:        [[ ! -d $_tmpsrc ]] &&
                    133:                _issue="Cannot create prefetch area" && fail
1.1       afresh1   134:
1.16      afresh1   135:        # Cleanup from previous runs.
                    136:        rm -f $_cfile $_cfile.sig
                    137:
1.17    ! afresh1   138:     _t=Get/Verify
        !           139:
1.11      afresh1   140:        ! $_unpriv ftp -D "$_t" -Vmo - "$_src/SHA256.sig" >"$_cfile.sig" &&
                    141:            _issue="Cannot fetch SHA256.sig" && fail
1.1       afresh1   142:
1.11      afresh1   143:        # Verify signature file with public keys.
                    144:        ! unpriv -f "$_cfile" \
                    145:            signify -Vep $FWPUB_KEY -x "$_cfile.sig" -m "$_cfile" &&
                    146:            _issue="Signature check of SHA256.sig failed" && fail
                    147:
1.15      afresh1   148:        for _d in $_drivers; do
                    149:                _f=$( sed -n "s/.*(\($_d-firmware-.*\.tgz\)).*/\1/p" "$_cfile" )
                    150:                _installed=$( installed_firmware "$_d" )
                    151:
                    152:                for _i in $_installed; do
                    153:                        if [ "$_f" = "$_i.tgz" ]; then
                    154:                                echo "Firmware for $_d already installed ($_installed)"
1.11      afresh1   155:                                continue 2
1.1       afresh1   156:                        fi
                    157:                done
                    158:
1.11      afresh1   159:                rm -f /tmp/h /tmp/fail
                    160:
                    161:                # Fetch firmware file and create a checksum by piping through
                    162:                # sha256. Create a flag file in case ftp failed. Firmware
                    163:                # from net is written to the prefetch area.
                    164:                ( $_unpriv ftp -D "$_t" -Vmo - "$_src/$_f" || >/tmp/fail ) |
                    165:                ( $_srclocal && unpriv2 sha256 -b >/tmp/h ||
                    166:                    unpriv2 -f /tmp/h sha256 -bph /tmp/h >"$_tmpsrc/$_f" )
                    167:
                    168:                # Handle failed transfer.
                    169:                if [[ -f /tmp/fail ]]; then
                    170:                        rm -f "$_tmpsrc/$_f"
                    171:                        _issue="Fetching of $_f failed!"
                    172:                        fail
                    173:                fi
                    174:
                    175:                # Verify firmware by comparing its checksum with SHA256.
                    176:                if fgrep -qx "SHA256 ($_f) = $(</tmp/h)" "$_cfile"; then
                    177:                        #_unver=$(rmel $_f $_unver)
                    178:                        true
                    179:                else
                    180:                        [[ -d "$_tmpsrc" ]] && rm -rf "$_tmpsrc"
                    181:                        _issue="Checksum test for $_f failed."
                    182:                        fail
                    183:                fi
                    184:
                    185:                # TODO: Check hash for files before deleting
                    186:                if [ "$installed" ] && [ -e "${PKGDIR}/$installed/+CONTENTS" ]; then
                    187:                        echo "Uninstalling $installed"
                    188:                        cwd=${PKGDIR}/$installed
                    189:
                    190:                        set -A _remove -- "${cwd}/+CONTENTS" "${cwd}"
                    191:
                    192:                        while read c g; do
                    193:                                case $c in
1.13      afresh1   194:                                @cwd) cwd="${DESTDIR}/$g"
1.11      afresh1   195:                                  ;;
                    196:                                @*) continue
                    197:                                  ;;
                    198:                                *)  set -A _remove -- "$cwd/$c" "${_remove[@]}"
                    199:                                  ;;
                    200:                                esac
                    201:                        done < "${PKGDIR}/$installed/+CONTENTS"
                    202:
                    203:                        for _r in "${_remove[@]}" ; do
                    204:                                if [ -d "$_r" ]; then
                    205:                                        # Try hard not to actually remove recursively
                    206:                                        # without rmdir on the install media.
                    207:                                        [ "$_r/*" = $( echo "$_r"/* ) ] && rm -rf "$_r"
                    208:                                else
                    209:                                        rm -f "$_r"
                    210:                                fi
                    211:                        done
                    212:                fi
                    213:
                    214:         # TODO: Add some details about the install to +CONTENTS like pkg_add
                    215:         # TODO: Or, maybe we save the firmware someplace and make pkg_add reinstall
                    216:                echo "Installing $_f"
1.13      afresh1   217:                tar -zxphf "$_tmpsrc/$_f" -C "${DESTDIR}/etc" "firmware/*"
1.11      afresh1   218:                mkdir -p ${PKGDIR}/${_f%.tgz}/
1.12      afresh1   219:                tar -zxphf "$_tmpsrc/$_f" -C "${PKGDIR}/${_f%.tgz}" "+*"
1.11      afresh1   220:                ed -s "${PKGDIR}/${_f%.tgz}/+CONTENTS" <<EOL
1.1       afresh1   221: /^@comment pkgpath/ -1a
                    222: @option manual-installation
                    223: @option firmware
                    224: @comment install-script
                    225: .
                    226: w
                    227: EOL
1.11      afresh1   228:        done
                    229: }
1.1       afresh1   230:
1.11      afresh1   231: fw_update

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