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