Annotation of openbsd/fw_update/fw_install.sh, Revision 1.57
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"
1.52 afresh1 28: VTYPE=$( sed -n "/^OpenBSD $VNAME\([^ ]*\).*$/s//\1/p" \
29: /var/run/dmesg.boot | sed '$!d' )
1.50 afresh1 30: [[ $VTYPE == -!(stable) ]] && HTTP_FWDIR=snapshots
1.22 afresh1 31:
1.50 afresh1 32: FWURL=http://firmware.openbsd.org/firmware/${HTTP_FWDIR}
33: FWPUB_KEY=${DESTDIR}/etc/signify/openbsd-${VERSION}-fw.pub
1.8 afresh1 34:
35: tmpdir() {
36: local _i=1 _dir
37:
1.50 afresh1 38: # If we're not in the installer,
39: # we have mktemp and a more hostile environment
40: if [ -x /usr/bin/mktemp ]; then
41: _dir=$( mktemp -d "${1}-XXXXXXXXX" )
1.44 afresh1 42: else
1.50 afresh1 43: until _dir="${1}.$_i.$RANDOM" && mkdir -- "$_dir" 2>/dev/null; do
1.44 afresh1 44: ((++_i < 10000)) || return 1
45: done
46: fi
1.50 afresh1 47:
1.8 afresh1 48: echo "$_dir"
49: }
1.6 afresh1 50:
1.55 afresh1 51: realpath () {
52: if [ -x /usr/bin/realpath ]; then
53: /usr/bin/realpath "$1"
54: elif [ "$1" = "${1%/*}" ]; then
55: echo "${PWD}/$1"
56: else
57: echo "$( cd "${1%/*}" && pwd )/${1##*/}"
58: fi
59: }
60:
1.50 afresh1 61: fetch() {
62: local _file=$1 _user=_file _exit
1.6 afresh1 63:
1.50 afresh1 64: >"$_file"
65: chown "$_user" "$_file"
1.6 afresh1 66:
1.50 afresh1 67: # If we're not in the installer, we have su(1)
68: # and doas(1) is unlikely to be configured.
1.53 afresh1 69: if [ -x /usr/bin/su ]; then
1.50 afresh1 70: /usr/bin/su -s /bin/ksh "$_user" -c \
71: "/usr/bin/ftp -D 'Get/Verify' -Vm \
72: -o '$_file' '${FWURL}/${_file}'"
73: _exit="$?"
1.42 afresh1 74: else
1.50 afresh1 75: /usr/bin/doas -u "$_user" \
76: ftp -D 'Get/Verify' -Vm \
77: -o "$_file" "${FWURL}/${_file}"
78: _exit="$?"
1.42 afresh1 79: fi
1.6 afresh1 80:
1.50 afresh1 81: if [ "$_exit" -ne 0 ]; then
82: rm -f "$_file"
83: echo "Cannot fetch $_file" >&2
84: return 1
85: fi
1.6 afresh1 86:
1.50 afresh1 87: chown root "$_file"
1.6 afresh1 88: }
89:
1.50 afresh1 90: verify() {
91: # On the installer we don't get sha256 -C, so fake it.
92: if ! fgrep -qx "SHA256 ($1) = $( /bin/sha256 -qb "$1" )" "$CFILE"; then
93: echo "Checksum test for $1 failed." >&2
94: return 1
95: fi
1.6 afresh1 96: }
97:
1.50 afresh1 98: devices_needing_firmware() {
99: local _d _m _grep _dmesgtail _last=''
1.1 afresh1 100:
1.50 afresh1 101: # When we're not in the installer, the dmesg.boot can
102: # contain multiple boots, so only look in the last one
103: _dmesgtail=$( sed -n 'H;/^OpenBSD/h;${g;p;}' /var/run/dmesg.boot )
104:
105: grep -v '^[[:space:]]*#' "$FWPATTERNS" |
106: while read -r _d _m; do
107: _grep="grep"
108: [ "$_last" = "$_d" ] && continue
109: [ "$_m" ] || _m="^${_d}[0-9][0-9]* at "
110: [ "$_m" = "${_m#^}" ] && _grep="fgrep"
111:
112: echo "$_dmesgtail" | $_grep -q "$_m" || continue
113: echo "$_d"
114: _last="$_d"
115: done
116: }
1.14 afresh1 117:
1.50 afresh1 118: firmware_filename() {
1.56 afresh1 119: local _f
120: _f="$( sed -n "s/.*(\($1-firmware-.*\.tgz\)).*/\1/p" "$CFILE" | sed '$!d' )"
121: ! [ "$_f" ] && echo "Unable to find firmware for $1" >&2 && return 1
122: echo "$_f"
1.50 afresh1 123: }
1.7 afresh1 124:
1.57 ! afresh1 125: firmware_devicename() {
! 126: local _d="${1##*/}"
! 127: _d="${_d%-firmware-*}"
! 128: echo "$_d"
! 129: }
! 130:
1.50 afresh1 131: installed_firmware() {
132: for fw in "${DESTDIR}/var/db/pkg/$1-firmware"*; do
133: [ -e "$fw" ] || continue
134: echo "${fw##*/}"
135: done
136: }
1.1 afresh1 137:
1.50 afresh1 138: add_firmware () {
139: local _f="$1" _pkgdir="${DESTDIR}/var/db/pkg"
140: ftp -D "Install" -Vmo- "file:${1}" |
141: tar -s ",^\+,${_pkgdir}/${_f%.tgz}/+," \
142: -s ",^firmware,${DESTDIR}/etc/firmware," \
143: -C / -zxphf - "+*" "firmware/*"
1.1 afresh1 144:
1.50 afresh1 145: # TODO: Should we mark these so real fw_update can -Drepair?
146: ed -s "${_pkgdir}/${_f%.tgz}/+CONTENTS" <<EOL
147: /^@comment pkgpath/ -1a
148: @option manual-installation
149: @option firmware
150: @comment install-script
151: .
152: w
153: EOL
154: }
1.22 afresh1 155:
1.50 afresh1 156: delete_firmware() {
1.51 afresh1 157: local _cwd _pkg="$1" _pkgdir="${DESTDIR}/var/db/pkg"
1.22 afresh1 158:
1.50 afresh1 159: # TODO: Check hash for files before deleting
160: echo "Uninstalling $_pkg"
1.51 afresh1 161: _cwd="${_pkgdir}/$_pkg"
1.50 afresh1 162:
1.51 afresh1 163: set -A _remove -- "${_cwd}/+CONTENTS" "${_cwd}"
1.50 afresh1 164:
165: while read -r c g; do
166: case $c in
1.51 afresh1 167: @cwd) _cwd="${DESTDIR}$g"
1.50 afresh1 168: ;;
169: @*) continue
170: ;;
1.52 afresh1 171: *) set -A _remove -- "$_cwd/$c" "${_remove[@]}"
1.50 afresh1 172: ;;
173: esac
174: done < "${_pkgdir}/${_pkg}/+CONTENTS"
175:
176: # We specifically rm -f here because not removing files/dirs
177: # is probably not worth failing over.
178: for _r in "${_remove[@]}" ; do
179: if [ -d "$_r" ]; then
180: # Try hard not to actually remove recursively
181: # without rmdir on the install media.
182: [ "$_r/*" = "$( echo "$_r"/* )" ] && rm -rf "$_r"
183: else
184: rm -f "$_r"
1.22 afresh1 185: fi
186: done
1.50 afresh1 187: }
1.1 afresh1 188:
1.50 afresh1 189: set -A devices -- $( devices_needing_firmware )
1.1 afresh1 190:
1.50 afresh1 191: if [ ! "${devices:-}" ]; then
192: echo "No devices found which need firmware files to be downloaded."
193: exit
194: fi
195:
196: TMPDIR=$( tmpdir "${DESTDIR}/tmp/fw_install" )
197: cd "$TMPDIR"
198:
199: # To unpriv we need to let the unpriv user into this dir
200: chmod go+x .
201:
202: fetch "$CFILE"
1.54 afresh1 203: ! signify -qVep "$FWPUB_KEY" -x "$CFILE" -m "$CFILE" &&
1.50 afresh1 204: echo "Signature check of SHA256.sig failed" >&2 && exit 1
205:
206: for d in "${devices[@]}"; do
1.56 afresh1 207: f=$( firmware_filename "$d" || true )
1.50 afresh1 208: [ "$f" ] || continue
209: set -A installed -- $( installed_firmware "$d" )
210:
211: if [ "${installed:-}" ]; then
212: for i in "${installed[@]:-}"; do
213: if [ "$f" = "$i.tgz" ]; then
214: echo "$i already installed"
1.11 afresh1 215: continue 2
1.1 afresh1 216: fi
217: done
1.50 afresh1 218: fi
1.1 afresh1 219:
1.50 afresh1 220: fetch "$f" || continue
221: verify "$f" || continue
1.11 afresh1 222:
1.50 afresh1 223: if [ "${installed:-}" ]; then
224: for i in "${installed[@]}"; do
225: delete_firmware "$i"
226: done
227: fi
1.11 afresh1 228:
1.50 afresh1 229: add_firmware "$f"
230: done
1.1 afresh1 231:
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