Annotation of openbsd/fw_update/fw_install.sh, Revision 1.25
1.1 afresh1 1: #!/bin/ksh
2: set -e
3:
4: scan_dmesg() {
5: # no bsort for now
6: sed -n "$1" /var/run/dmesg.boot
7: }
8:
1.24 afresh1 9: # Fake up some things from install.sub that we don't need to actually do
1.22 afresh1 10: prefetcharea_fs_list() {
1.25 ! afresh1 11: echo "/mnt/tmp"
1.22 afresh1 12: }
13: reset_watchdog() {
14: }
15:
1.8 afresh1 16: # tmpdir, do_as, unpriv, and unpriv2 are from install.sub
17:
18: # Create a temporary directory based on the supplied directory name prefix.
19: tmpdir() {
20: local _i=1 _dir
21:
22: until _dir="${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:
1.20 afresh1 73: # "fail" needs to be replaced with the "ask_yn" loop like in the installer.
1.8 afresh1 74: _issue=
75: fail() {
76: echo $_issue >&2
77: exit 1
78: }
79:
1.7 afresh1 80: VNAME=$(sysctl -n kern.osrelease)
81: VERSION="${VNAME%.*}${VNAME#*.}"
82: FWDIR="$VNAME"
1.1 afresh1 83:
1.14 afresh1 84: # TODO: We need the firmware for the system we just installed
85: # not the one we booted from. For example:
86: # * booting from a snapshot bsd.rd that thinks it is the 7.0 release
87: # will install the firmware from the 7.0 directory instead of
88: # from the snapshots dir.
89: # If they're using sysupgrade, then the installer kernel will be correct.
90: # If we're doing this in the installer we can check what they picked
91: # for downloading sets and use that value.
92: # Otherwise, the fw_update after first boot will fix it up for us.
93:
1.7 afresh1 94: HTTP_FWDIR=$FWDIR
95: set -- $(scan_dmesg "/^OpenBSD $VNAME\([^ ]*\).*$/s//\1/p")
96: [[ $1 == -!(stable) ]] && HTTP_FWDIR=snapshots
97:
98: FWURL=http://firmware.openbsd.org/firmware/${HTTP_FWDIR}
99: FWPUB_KEY=${DESTDIR}/etc/signify/openbsd-${VERSION}-fw.pub
1.20 afresh1 100: FWPATTERNS="file:${0%/*}/firmware_patterns"
1.1 afresh1 101:
1.20 afresh1 102: # TODO: support srclocal installation of firmware somehow
1.11 afresh1 103: fw_update() {
1.24 afresh1 104: local _src=$1 _tmpfs_list _tmpfs _tmpsrc \
1.25 ! afresh1 105: _t=Get _cfile="/tmp/SHA256" _pkgdir=/mnt/var/db/pkg \
! 106: _f _r _remove _i _installed
! 107: local _srclocal=false _unpriv=unpriv
1.15 afresh1 108: local _d _drivers=$(
1.11 afresh1 109: last=''
1.24 afresh1 110: $_unpriv ftp -D "Detecting" -Vmo- $FWPATTERNS |
1.15 afresh1 111: while read _d _m; do
1.11 afresh1 112: grep=grep
1.15 afresh1 113: [ "$last" = "$_d" ] && continue
114: [ "$_m" ] || _m="^$_d[0-9][0-9]* at "
115: [ "$_m" = "${_m#^}" ] && grep=fgrep
116: $grep -q "$_m" /var/run/dmesg.boot || continue
117: echo $_d
118: last=$_d
1.11 afresh1 119: done
120: )
121:
122: if [ -z "$_drivers" ]; then
1.22 afresh1 123: echo "No devices found which need firmware files to be downloaded."
1.11 afresh1 124: return
125: fi
1.1 afresh1 126:
1.22 afresh1 127: ! _tmpfs_list=$(prefetcharea_fs_list) &&
128: echo "Cannot determine prefetch area" >&2 && return
129:
130: for _tmpfs in $_tmpfs_list; do
131: # Try to clean up from previous runs, assuming
132: # the _tmpfs selection yields the same mount
133: # point.
134: for _tmpsrc in $_tmpfs/firmware.+([0-9]).+([0-9]); do
135: [[ -d $_tmpsrc ]] && rm -r $_tmpsrc
136: done
137:
138: # Create a download directory for the firmware and
139: # check that the _sndio user can read files from
140: # it. Otherwise cleanup and skip the filesystem.
141: if _tmpsrc=$(tmpdir "$_tmpfs/firmware"); then
142: (
143: >$_tmpsrc/t &&
144: $_unpriv cat $_tmpsrc/t
145: ) >/dev/null 2>&1 && break ||
146: rm -r $_tmpsrc
147: fi
148: done
1.1 afresh1 149:
1.11 afresh1 150: [[ ! -d $_tmpsrc ]] &&
1.22 afresh1 151: echo "Cannot create prefetch area" >&2 && return 1
1.1 afresh1 152:
1.16 afresh1 153: # Cleanup from previous runs.
154: rm -f $_cfile $_cfile.sig
155:
1.21 afresh1 156: _t=Get/Verify
1.17 afresh1 157:
1.11 afresh1 158: ! $_unpriv ftp -D "$_t" -Vmo - "$_src/SHA256.sig" >"$_cfile.sig" &&
1.22 afresh1 159: echo "Cannot fetch SHA256.sig" >&2 && return 1
1.1 afresh1 160:
1.11 afresh1 161: # Verify signature file with public keys.
1.24 afresh1 162: ! $_unpriv -f "$_cfile" \
1.11 afresh1 163: signify -Vep $FWPUB_KEY -x "$_cfile.sig" -m "$_cfile" &&
1.22 afresh1 164: echo "Signature check of SHA256.sig failed" >&2 && return 1
1.11 afresh1 165:
1.15 afresh1 166: for _d in $_drivers; do
1.22 afresh1 167: $UU && reset_watchdog
1.15 afresh1 168: _f=$( sed -n "s/.*(\($_d-firmware-.*\.tgz\)).*/\1/p" "$_cfile" )
1.19 afresh1 169: _installed=$(
1.22 afresh1 170: for fw in "${_pkgdir}/$_d-firmware"*; do
1.19 afresh1 171: [ -e "$fw" ] || continue
172: echo ${fw##*/}
173: done
1.21 afresh1 174: )
1.15 afresh1 175:
176: for _i in $_installed; do
177: if [ "$_f" = "$_i.tgz" ]; then
1.24 afresh1 178: echo "$_i already installed"
1.11 afresh1 179: continue 2
1.1 afresh1 180: fi
181: done
182:
1.11 afresh1 183: rm -f /tmp/h /tmp/fail
184:
185: # Fetch firmware file and create a checksum by piping through
186: # sha256. Create a flag file in case ftp failed. Firmware
187: # from net is written to the prefetch area.
188: ( $_unpriv ftp -D "$_t" -Vmo - "$_src/$_f" || >/tmp/fail ) |
189: ( $_srclocal && unpriv2 sha256 -b >/tmp/h ||
190: unpriv2 -f /tmp/h sha256 -bph /tmp/h >"$_tmpsrc/$_f" )
191:
192: # Handle failed transfer.
193: if [[ -f /tmp/fail ]]; then
194: rm -f "$_tmpsrc/$_f"
1.22 afresh1 195: echo "Fetching of $_f failed!" >&2
196: continue
1.11 afresh1 197: fi
198:
199: # Verify firmware by comparing its checksum with SHA256.
1.22 afresh1 200: if ! fgrep -qx "SHA256 ($_f) = $(</tmp/h)" "$_cfile"; then
1.11 afresh1 201: [[ -d "$_tmpsrc" ]] && rm -rf "$_tmpsrc"
1.22 afresh1 202: echo "Checksum test for $_f failed." >&2
203: continue
1.11 afresh1 204: fi
205:
206: # TODO: Check hash for files before deleting
1.22 afresh1 207: if [ "$_installed" ] && [ -e "${_pkgdir}/$_installed/+CONTENTS" ]; then
1.18 afresh1 208: echo "Uninstalling $_installed"
1.22 afresh1 209: cwd=${_pkgdir}/$_installed
1.11 afresh1 210:
211: set -A _remove -- "${cwd}/+CONTENTS" "${cwd}"
212:
213: while read c g; do
214: case $c in
1.22 afresh1 215: @cwd) cwd="/mnt/$g"
1.11 afresh1 216: ;;
217: @*) continue
218: ;;
219: *) set -A _remove -- "$cwd/$c" "${_remove[@]}"
220: ;;
221: esac
1.22 afresh1 222: done < "${_pkgdir}/$_installed/+CONTENTS"
1.11 afresh1 223:
1.21 afresh1 224: # We specifically rm -f here because not removing files/dirs
225: # is probably not worth failing over.
1.11 afresh1 226: for _r in "${_remove[@]}" ; do
227: if [ -d "$_r" ]; then
228: # Try hard not to actually remove recursively
229: # without rmdir on the install media.
230: [ "$_r/*" = $( echo "$_r"/* ) ] && rm -rf "$_r"
231: else
232: rm -f "$_r"
233: fi
234: done
235: fi
236:
1.21 afresh1 237: # TODO: Should we mark these so real fw_update can -Drepair?
1.25 ! afresh1 238: ftp -D "Install" -Vmo- "file:$_tmpsrc/$_f" |
! 239: tar -s ",^\+,${_pkgdir}/${_f%.tgz}/+," \
! 240: -s ",^firmware,mnt/etc/firmware," \
! 241: -C / -zxphf - "+*" "firmware/*"
1.23 afresh1 242:
1.22 afresh1 243: ed -s "${_pkgdir}/${_f%.tgz}/+CONTENTS" <<EOL
1.1 afresh1 244: /^@comment pkgpath/ -1a
245: @option manual-installation
246: @option firmware
247: @comment install-script
248: .
249: w
250: EOL
1.11 afresh1 251: done
252: }
1.1 afresh1 253:
1.24 afresh1 254: fw_update "$FWURL"
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