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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:47:29 +0000 |
commit | 4f5791ebd03eaec1c7da0865a383175b05102712 (patch) | |
tree | 8ce7b00f7a76baa386372422adebbe64510812d4 /ctdb/config/events/legacy/50.samba.script | |
parent | Initial commit. (diff) | |
download | samba-upstream.tar.xz samba-upstream.zip |
Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'ctdb/config/events/legacy/50.samba.script')
-rwxr-xr-x | ctdb/config/events/legacy/50.samba.script | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/ctdb/config/events/legacy/50.samba.script b/ctdb/config/events/legacy/50.samba.script new file mode 100755 index 0000000..81c6e7f --- /dev/null +++ b/ctdb/config/events/legacy/50.samba.script @@ -0,0 +1,163 @@ +#!/bin/sh +# ctdb event script for Samba + +[ -n "$CTDB_BASE" ] || \ + CTDB_BASE=$(d=$(dirname "$0") && cd -P "$d" && dirname "$PWD") + +. "${CTDB_BASE}/functions" + +detect_init_style + +case $CTDB_INIT_STYLE in + suse) + CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb} + ;; + debian) + CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smbd} + ;; + *) + # Use redhat style as default: + CTDB_SERVICE_SMB=${CTDB_SERVICE_SMB:-smb} + ;; +esac + +service_name="samba" + +load_script_options + +ctdb_setup_state_dir "service" "$service_name" + +service_start () +{ + # make sure samba is not already started + service "$CTDB_SERVICE_SMB" stop > /dev/null 2>&1 + killall -0 -q smbd && { + sleep 1 + # make absolutely sure samba is dead + killall -q -9 smbd + } + # start Samba service. Start it reniced, as under very heavy load + # the number of smbd processes will mean that it leaves few cycles + # for anything else + nice_service "$CTDB_SERVICE_SMB" start || die "Failed to start samba" +} + +service_stop () +{ + service "$CTDB_SERVICE_SMB" stop + program_stack_traces "smbd" 5 +} + +###################################################################### +# Show the testparm output using a cached smb.conf to avoid delays due +# to registry access. + +# script_state_dir set by ctdb_setup_state_dir() +# shellcheck disable=SC2154 +smbconf_cache="$script_state_dir/smb.conf.cache" + +testparm_foreground_update () +{ + _timeout="$1" + + # No need to remove these temporary files, since there are only 2 + # of them. + _out="${smbconf_cache}.out" + _err="${smbconf_cache}.err" + + timeout "$_timeout" testparm -v -s >"$_out" 2>"$_err" + case $? in + 0) : ;; + 124) + if [ -f "$smbconf_cache" ] ; then + echo "WARNING: smb.conf cache update timed out - using old cache file" + return 1 + else + echo "ERROR: smb.conf cache create failed - testparm command timed out" + exit 1 + fi + ;; + *) + if [ -f "$smbconf_cache" ] ; then + echo "WARNING: smb.conf cache update failed - using old cache file" + cat "$_err" + return 1 + else + echo "ERROR: smb.conf cache create failed - testparm failed with:" + cat "$_err" + exit 1 + fi + esac + + # Only using $$ here to avoid a collision. This is written into + # CTDB's own state directory so there is no real need for a secure + # temporary file. + _tmpfile="${smbconf_cache}.$$" + # Patterns to exclude... + _pat='^[[:space:]]+(registry[[:space:]]+shares|include|copy|winbind[[:space:]]+separator)[[:space:]]+=' + grep -Ev "$_pat" <"$_out" >"$_tmpfile" + mv "$_tmpfile" "$smbconf_cache" # atomic + + return 0 +} + +testparm_background_update () +{ + _timeout="$1" + + testparm_foreground_update "$_timeout" >/dev/null 2>&1 </dev/null & +} + +testparm_cat () +{ + testparm -s "$smbconf_cache" "$@" 2>/dev/null +} + +list_samba_shares () +{ + testparm_cat | + sed -n -e 's@^[[:space:]]*path[[:space:]]*=[[:space:]]@@p' | + sed -e 's/"//g' +} + +list_samba_ports () +{ + testparm_cat --parameter-name="smb ports" | + sed -e 's@,@ @g' +} + +########################### + +case "$1" in +startup) + service_start + ;; + +shutdown) + service_stop + ;; + +monitor) + testparm_foreground_update 10 + ret=$? + + smb_ports="$CTDB_SAMBA_CHECK_PORTS" + if [ -z "$smb_ports" ] ; then + smb_ports=$(list_samba_ports) + [ -n "$smb_ports" ] || die "Failed to set smb ports" + fi + # Intentionally unquoted multi-word value here + # shellcheck disable=SC2086 + ctdb_check_tcp_ports $smb_ports || exit $? + + if [ "$CTDB_SAMBA_SKIP_SHARE_CHECK" != "yes" ] ; then + list_samba_shares | ctdb_check_directories || exit $? + fi + + if [ $ret -ne 0 ] ; then + testparm_background_update 10 + fi + ;; +esac + +exit 0 |