Annotation of openbsd/fw_update/fw_install.sh, Revision 1.8
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:
92: drivers=$(
93: last=''
94: ftp -D "Detecting" -Vmo- $PATTERNS |
95: while read d m; do
1.5 afresh1 96: grep=grep
1.1 afresh1 97: [ "$last" = "$d" ] && continue
98: [ "$m" ] || m="^$d[0-9][0-9]* at "
1.5 afresh1 99: [ "$m" = "${m#^}" ] && grep=fgrep
1.3 afresh1 100: $grep -q "$m" /var/run/dmesg.boot || continue
1.1 afresh1 101: echo $d
102: last=$d
103: done
104: )
105:
106: if [ -z "$drivers" ]; then
107: echo "No devices found which need firmware files to be downloaded." >&2
108: exit 0
109: fi
110:
1.8 ! afresh1 111: _src=$FWURL
! 112: if _tmpsrc=$( tmpdir "${DESTDIR}/tmp/fw_update" ); then
! 113: (
! 114: >$_tmpsrc/t &&
! 115: $_unpriv cat $_tmpsrc/t
! 116: ) >/dev/null 2>&1 ||
! 117: rm -r $_tmpsrc
1.1 afresh1 118: fi
119:
1.8 ! afresh1 120: [[ ! -d $_tmpsrc ]] &&
! 121: _issue="Cannot create prefetch area" && fail
! 122:
! 123: cd "$_tmpsrc"
! 124:
! 125: _t=Get
! 126: _cfile="$_tmpsrc/SHA256"
! 127: _srclocal=false
! 128:
! 129: ! $_unpriv ftp -D "$_t" -Vmo - "$_src/SHA256.sig" >"$_cfile.sig" &&
! 130: _issue="Cannot fetch SHA256.sig" && fail
! 131:
! 132: # Verify signature file with public keys.
! 133: ! unpriv -f "$_cfile" \
! 134: signify -Vep $FWPUB_KEY -x "$_cfile.sig" -m "$_cfile" &&
! 135: _issue="Signature check of SHA256.sig failed" && fail
1.1 afresh1 136:
137: for d in $drivers; do
1.8 ! afresh1 138: _f=$( sed -n "s/.*(\($d-firmware-.*\.tgz\)).*/\1/p" "$_cfile" )
! 139: installed=$( installed_firmware "$d" )
1.1 afresh1 140:
141: for i in $installed; do
1.8 ! afresh1 142: if [ "$_f" = "$i.tgz" ]; then
1.1 afresh1 143: echo "Firmware for $d already installed ($installed)"
144: continue 2
145: fi
146: done
147:
1.8 ! afresh1 148: rm -f /tmp/h /tmp/fail
1.1 afresh1 149:
1.8 ! afresh1 150: _t=Get/Verify
! 151: # Fetch firmware file and create a checksum by piping through
! 152: # sha256. Create a flag file in case ftp failed. Firmware
! 153: # from net is written to the prefetch area.
! 154: ( $_unpriv ftp -D "$_t" -Vmo - "$_src/$_f" || >/tmp/fail ) |
! 155: ( $_srclocal && unpriv2 sha256 -b >/tmp/h ||
! 156: unpriv2 -f /tmp/h sha256 -bph /tmp/h >"$_tmpsrc/$_f" )
! 157:
! 158: # Handle failed transfer.
! 159: if [[ -f /tmp/fail ]]; then
! 160: rm -f "$_tmpsrc/$_f"
! 161: _issue="Fetching of $_f failed!"
! 162: fail
! 163: fi
! 164:
! 165: # Verify firmware by comparing its checksum with SHA256.
! 166: if fgrep -qx "SHA256 ($_f) = $(</tmp/h)" "$_cfile"; then
! 167: #_unver=$(rmel $_f $_unver)
! 168: true
! 169: else
! 170: [[ -d "$_tmpsrc" ]] && rm -rf "$_tmpsrc"
! 171: _issue="Checksum test for $_f failed."
! 172: fail
! 173: fi
1.1 afresh1 174:
175: # TODO: Check hash for files before deleting
176: if [ "$installed" ] && [ -e "${PKGDIR}/$installed/+CONTENTS" ]; then
177: echo "Uninstalling $installed"
178: cwd=${PKGDIR}/$installed
179:
180: remove="${cwd}/+CONTENTS ${cwd}"
181:
182: while read c g; do
183: case $c in
184: @cwd) cwd=$g
185: ;;
186: @*) continue
187: ;;
188: *) remove="$cwd/$c $remove"
189: ;;
190: esac
191: done < "${PKGDIR}/$installed/+CONTENTS"
192:
193: for r in $remove ; do
194: if [ -d "$r" ]; then
195: # Try hard not to actually remove recursively
196: # without rmdir on the install media.
197: [ "$r/*" = $( echo "$r"/* ) ] && rm -rf "$r"
198: else
199: rm -f "$r"
200: fi
201: done
202: fi
203:
204: # TODO: Add some details about the install to +CONTENTS like pkg_add
205: # TODO: Or, maybe we save the firmware someplace and make pkg_add reinstall
1.8 ! afresh1 206: echo "Installing $_f"
! 207: tar -zxphf "$_f" -C /etc "firmware/*"
1.1 afresh1 208: mkdir -p ${PKGDIR}/${firmware%.tgz}/
1.8 ! afresh1 209: tar -zxphf "$_f" -C "${PKGDIR}/${firmware%.tgz}" "+*"
1.4 afresh1 210: ed -s "${PKGDIR}/${firmware%.tgz}/+CONTENTS" <<EOL
1.1 afresh1 211: /^@comment pkgpath/ -1a
212: @option manual-installation
213: @option firmware
214: @comment install-script
215: .
216: w
217: EOL
218: done
219:
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