Annotation of openbsd/fw_update/fw_install.sh, Revision 1.51
1.1 afresh1 1: #!/bin/ksh
1.36 afresh1 2: # $OpenBSD$
1.50 afresh1 3: #
1.38 afresh1 4: # Copyright (c) 2021 Andrew Hewus Fresh <afresh1@openbsd.org>
5: #
6: # Permission to use, copy, modify, and distribute this software for any
7: # purpose with or without fee is hereby granted, provided that the above
8: # copyright notice and this permission notice appear in all copies.
9: #
10: # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17:
1.50 afresh1 18: set -o errexit -o pipefail -o nounset
19:
20: CFILE=SHA256.sig
21: DESTDIR=${DESTDIR:-}
22: FWPATTERNS="${DESTDIR}/usr/share/misc/firmware_patterns"
23:
24: VNAME=${VNAME:-$(sysctl -n kern.osrelease)}
25: VERSION=${VERSION:-"${VNAME%.*}${VNAME#*.}"}
26:
27: HTTP_FWDIR="$VNAME"
28: VTYPE=$( sed -n "/^OpenBSD $VNAME\([^ ]*\).*$/s//\1/p" /var/run/dmesg.boot | sed '$!d' )
29: [[ $VTYPE == -!(stable) ]] && HTTP_FWDIR=snapshots
1.22 afresh1 30:
1.50 afresh1 31: FWURL=http://firmware.openbsd.org/firmware/${HTTP_FWDIR}
32: FWPUB_KEY=${DESTDIR}/etc/signify/openbsd-${VERSION}-fw.pub
1.8 afresh1 33:
34: tmpdir() {
35: local _i=1 _dir
36:
1.50 afresh1 37: # If we're not in the installer,
38: # we have mktemp and a more hostile environment
39: if [ -x /usr/bin/mktemp ]; then
40: _dir=$( mktemp -d "${1}-XXXXXXXXX" )
1.44 afresh1 41: else
1.50 afresh1 42: until _dir="${1}.$_i.$RANDOM" && mkdir -- "$_dir" 2>/dev/null; do
1.44 afresh1 43: ((++_i < 10000)) || return 1
44: done
45: fi
1.50 afresh1 46:
1.8 afresh1 47: echo "$_dir"
48: }
1.6 afresh1 49:
1.50 afresh1 50: fetch() {
51: local _file=$1 _user=_file _exit
1.6 afresh1 52:
1.50 afresh1 53: >"$_file"
54: chown "$_user" "$_file"
1.6 afresh1 55:
1.50 afresh1 56: # If we're not in the installer, we have su(1)
57: # and doas(1) is unlikely to be configured.
58: if [ -x /usr/bin/sh ]; then
59: /usr/bin/su -s /bin/ksh "$_user" -c \
60: "/usr/bin/ftp -D 'Get/Verify' -Vm \
61: -o '$_file' '${FWURL}/${_file}'"
62: _exit="$?"
1.42 afresh1 63: else
1.50 afresh1 64: /usr/bin/doas -u "$_user" \
65: ftp -D 'Get/Verify' -Vm \
66: -o "$_file" "${FWURL}/${_file}"
67: _exit="$?"
1.42 afresh1 68: fi
1.6 afresh1 69:
1.50 afresh1 70: if [ "$_exit" -ne 0 ]; then
71: rm -f "$_file"
72: echo "Cannot fetch $_file" >&2
73: return 1
74: fi
1.6 afresh1 75:
1.50 afresh1 76: chown root "$_file"
1.6 afresh1 77: }
78:
1.50 afresh1 79: verify() {
80: # On the installer we don't get sha256 -C, so fake it.
81: if ! fgrep -qx "SHA256 ($1) = $( /bin/sha256 -qb "$1" )" "$CFILE"; then
82: echo "Checksum test for $1 failed." >&2
83: return 1
84: fi
1.6 afresh1 85: }
86:
1.50 afresh1 87: devices_needing_firmware() {
88: local _d _m _grep _dmesgtail _last=''
1.1 afresh1 89:
1.50 afresh1 90: # When we're not in the installer, the dmesg.boot can
91: # contain multiple boots, so only look in the last one
92: _dmesgtail=$( sed -n 'H;/^OpenBSD/h;${g;p;}' /var/run/dmesg.boot )
93:
94: grep -v '^[[:space:]]*#' "$FWPATTERNS" |
95: while read -r _d _m; do
96: _grep="grep"
97: [ "$_last" = "$_d" ] && continue
98: [ "$_m" ] || _m="^${_d}[0-9][0-9]* at "
99: [ "$_m" = "${_m#^}" ] && _grep="fgrep"
100:
101: echo "$_dmesgtail" | $_grep -q "$_m" || continue
102: echo "$_d"
103: _last="$_d"
104: done
105: }
1.14 afresh1 106:
1.50 afresh1 107: firmware_filename() {
108: sed -n "s/.*(\($1-firmware-.*\.tgz\)).*/\1/p" "$CFILE" | sed '$!d'
109: }
1.7 afresh1 110:
1.50 afresh1 111: installed_firmware() {
112: for fw in "${DESTDIR}/var/db/pkg/$1-firmware"*; do
113: [ -e "$fw" ] || continue
114: echo "${fw##*/}"
115: done
116: }
1.1 afresh1 117:
1.50 afresh1 118: add_firmware () {
119: local _f="$1" _pkgdir="${DESTDIR}/var/db/pkg"
120: ftp -D "Install" -Vmo- "file:${1}" |
121: tar -s ",^\+,${_pkgdir}/${_f%.tgz}/+," \
122: -s ",^firmware,${DESTDIR}/etc/firmware," \
123: -C / -zxphf - "+*" "firmware/*"
1.1 afresh1 124:
1.50 afresh1 125: # TODO: Should we mark these so real fw_update can -Drepair?
126: ed -s "${_pkgdir}/${_f%.tgz}/+CONTENTS" <<EOL
127: /^@comment pkgpath/ -1a
128: @option manual-installation
129: @option firmware
130: @comment install-script
131: .
132: w
133: EOL
134: }
1.22 afresh1 135:
1.50 afresh1 136: delete_firmware() {
1.51 ! afresh1 137: local _cwd _pkg="$1" _pkgdir="${DESTDIR}/var/db/pkg"
1.22 afresh1 138:
1.50 afresh1 139: # TODO: Check hash for files before deleting
140: echo "Uninstalling $_pkg"
1.51 ! afresh1 141: _cwd="${_pkgdir}/$_pkg"
1.50 afresh1 142:
1.51 ! afresh1 143: set -A _remove -- "${_cwd}/+CONTENTS" "${_cwd}"
1.50 afresh1 144:
145: while read -r c g; do
146: case $c in
1.51 ! afresh1 147: @cwd) _cwd="${DESTDIR}$g"
1.50 afresh1 148: ;;
149: @*) continue
150: ;;
1.51 ! afresh1 151: *) set -A _remove -- "$_cwd/$c" "${_remove[@]}"
1.50 afresh1 152: ;;
153: esac
154: done < "${_pkgdir}/${_pkg}/+CONTENTS"
155:
156: # We specifically rm -f here because not removing files/dirs
157: # is probably not worth failing over.
158: for _r in "${_remove[@]}" ; do
159: if [ -d "$_r" ]; then
160: # Try hard not to actually remove recursively
161: # without rmdir on the install media.
162: [ "$_r/*" = "$( echo "$_r"/* )" ] && rm -rf "$_r"
163: else
164: rm -f "$_r"
1.22 afresh1 165: fi
166: done
1.50 afresh1 167: }
1.1 afresh1 168:
1.50 afresh1 169: set -A devices -- $( devices_needing_firmware )
1.1 afresh1 170:
1.50 afresh1 171: if [ ! "${devices:-}" ]; then
172: echo "No devices found which need firmware files to be downloaded."
173: exit
174: fi
175:
176: TMPDIR=$( tmpdir "${DESTDIR}/tmp/fw_install" )
177: cd "$TMPDIR"
178:
179: # To unpriv we need to let the unpriv user into this dir
180: chmod go+x .
181:
182: fetch "$CFILE"
183: ! signify -Vep "$FWPUB_KEY" -x "$CFILE" -m "$CFILE" &&
184: echo "Signature check of SHA256.sig failed" >&2 && exit 1
185:
186: for d in "${devices[@]}"; do
187: f=$( firmware_filename "$d" )
188: [ "$f" ] || continue
189: set -A installed -- $( installed_firmware "$d" )
190:
191: if [ "${installed:-}" ]; then
192: for i in "${installed[@]:-}"; do
193: if [ "$f" = "$i.tgz" ]; then
194: echo "$i already installed"
1.11 afresh1 195: continue 2
1.1 afresh1 196: fi
197: done
1.50 afresh1 198: fi
1.1 afresh1 199:
1.50 afresh1 200: fetch "$f" || continue
201: verify "$f" || continue
1.11 afresh1 202:
1.50 afresh1 203: if [ "${installed:-}" ]; then
204: for i in "${installed[@]}"; do
205: delete_firmware "$i"
206: done
207: fi
1.11 afresh1 208:
1.50 afresh1 209: add_firmware "$f"
210: done
1.1 afresh1 211:
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