diff options
Diffstat (limited to 'smartd_warning.sh.in')
| -rw-r--r-- | smartd_warning.sh.in | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/smartd_warning.sh.in b/smartd_warning.sh.in new file mode 100644 index 0000000..d83d661 --- /dev/null +++ b/smartd_warning.sh.in @@ -0,0 +1,234 @@ +#! /bin/sh +# +# smartd warning script +# +# Home page of code is: https://www.smartmontools.org +# +# Copyright (C) 2012-22 Christian Franke +# +# SPDX-License-Identifier: GPL-2.0-or-later +# +# $Id: smartd_warning.sh.in 5428 2022-12-31 15:55:43Z chrfranke $ +# + +set -e + +# Set by config.status +@ENABLE_SCRIPTPATH_TRUE@export PATH="@scriptpath@" +PACKAGE="@PACKAGE@" +VERSION="@VERSION@" +prefix="@prefix@" +sysconfdir="@sysconfdir@" +smartdscriptdir="@smartdscriptdir@" + +# Default mailer +os_mailer="@os_mailer@" + +# Plugin directory (disabled if empty) +plugindir="@smartdplugindir@" + +# Detect accidental use of '-M exec /path/to/smartd_warning.sh'. +if [ -n "$SMARTD_SUBJECT" ]; then + echo "$0: SMARTD_SUBJECT is already set - possible recursion" >&2 + exit 1 +fi + +# Parse options +dryrun= +case $1 in + --dryrun) dryrun=t; shift ;; +esac + +if [ $# != 0 ]; then + cat <<EOF +smartd $VERSION warning message script + +Usage: + export SMARTD_MAILER='Path to external script, empty for "$os_mailer"' + export SMARTD_ADDRESS='Space separated mail addresses, empty if none' + export SMARTD_MESSAGE='Error Message' + export SMARTD_FAILTYPE='Type of failure, "EMailTest" for tests' + export SMARTD_TFIRST='Date of first message sent, empty if none' + #export SMARTD_TFIRSTEPOCH='time_t format of above' + export SMARTD_PREVCNT='Number of previous messages, 0 if none' + export SMARTD_NEXTDAYS='Number of days until next message, empty if none' + export SMARTD_DEVICEINFO='Device identify information' + #export SMARTD_DEVICE='Device name' + #export SMARTD_DEVICESTRING='Annotated device name' + #export SMARTD_DEVICETYPE='Device type from -d directive, "auto" if none' + $0 [--dryrun] +EOF + exit 1 +fi + +if [ -z "${SMARTD_ADDRESS}${SMARTD_MAILER}" ]; then + echo "$0: SMARTD_ADDRESS or SMARTD_MAILER must be set" >&2 + exit 1 +fi + +# Get host and domain names +for cmd in @os_hostname@ 'echo "[Unknown]"'; do + hostname=`eval $cmd 2>/dev/null` || continue + test -n "$hostname" || continue + break +done + +dnsdomain=${hostname#*.} +if [ "$dnsdomain" != "$hostname" ]; then + # hostname command printed FQDN + hostname=${hostname%%.*} +else + for cmd in @os_dnsdomainname@ 'echo'; do + dnsdomain=`eval $cmd 2>/dev/null` || continue + break + done + test "$dnsdomain" != "(none)" || dnsdomain= +fi + +for cmd in @os_nisdomainname@ 'echo'; do + nisdomain=`eval $cmd 2>/dev/null` || continue + break +done +test "$nisdomain" != "(none)" || nisdomain= + +# Format subject +export SMARTD_SUBJECT="SMART error (${SMARTD_FAILTYPE-[SMARTD_FAILTYPE]}) detected on host: $hostname" + +# Format message +fullmessage=` + echo "This message was generated by the smartd daemon running on:" + echo + echo " host name: $hostname" + echo " DNS domain: ${dnsdomain:-[Empty]}" + test -z "$nisdomain" || + echo " NIS domain: $nisdomain" + @OS_WIN32_TRUE@test -z "$USERDOMAIN" || + @OS_WIN32_TRUE@ echo " Win domain: $USERDOMAIN" + echo + echo "The following warning/error was logged by the smartd daemon:" + echo + echo "${SMARTD_MESSAGE-[SMARTD_MESSAGE]}" + echo + echo "Device info:" + echo "${SMARTD_DEVICEINFO-[SMARTD_DEVICEINFO]}" + echo + echo "For details see host's SYSLOG." + if [ "$SMARTD_FAILTYPE" != "EmailTest" ]; then + echo + echo "You can also use the smartctl utility for further investigation." + test "$SMARTD_PREVCNT" = "0" || + echo "The original message about this issue was sent at ${SMARTD_TFIRST-[SMARTD_TFIRST]}" + case $SMARTD_NEXTDAYS in + '') echo "No additional messages about this problem will be sent." ;; + 0) echo "Another message will be sent upon next check if the problem persists." ;; + 1) echo "Another message will be sent in 24 hours if the problem persists." ;; + *) echo "Another message will be sent in $SMARTD_NEXTDAYS days if the problem persists." ;; + esac + fi +` + +# Check whether a message line begins with the default 'mail' command escape char '~'. +# Heuristically detect dangerous command escapes for possible other escape characters. +esc=`echo "$fullmessage" | sed -n -e '/^~/p' -e '/^[^ 0-9A-Za-z][[:space:]]*[!:<r|][[:space:]]/p'` +if [ -n "$esc" ]; then + echo "$0: Security: Message contains possible 'mail' command escape" >&2 + exit 1 +fi + +# Export message with trailing newline +export SMARTD_FULLMESSAGE="$fullmessage +" + +# Run plugin scripts if requested +unset SMARTD_ADDRESS_ORIG +case " $SMARTD_ADDRESS" in + *\ @*) + # Collect and remove plugin names from SMARTD_ADDRESS + export SMARTD_ADDRESS_ORIG=$SMARTD_ADDRESS + SMARTD_ADDRESS= + plugins= + for ad in $SMARTD_ADDRESS_ORIG; do + case $ad in + @ALL) + if [ -n "$plugindir" ]; then + for cmd in "$plugindir"/*; do + if [ -f "$cmd" ] && [ -x "$cmd" ]; then + plugins="${plugins}${plugins:+ }${cmd##*/}" + fi + done + fi + ;; + @?*) + if [ -n "$plugindir" ]; then + plugins="${plugins}${plugins:+ }${ad#@}" + fi + ;; + *) + SMARTD_ADDRESS="${SMARTD_ADDRESS}${SMARTD_ADDRESS:+ }$ad" + ;; + esac + done + + # Run all scripts + if [ -n "$plugins" ]; then + if [ -n "$dryrun" ]; then + echo "export SMARTD_ADDRESS='$SMARTD_ADDRESS'" + echo "export SMARTD_ADDRESS_ORIG='$SMARTD_ADDRESS_ORIG'" + echo "export SMARTD_SUBJECT='$SMARTD_SUBJECT'" + echo "export SMARTD_FULLMESSAGE='$SMARTD_FULLMESSAGE'" + fi + for p in $plugins; do + cmd="$plugindir/$p" + if [ -f "$cmd" ]; then + if [ -x "$cmd" ]; then + if [ -n "$dryrun" ]; then + echo "$cmd </dev/null" + else + rc=0 + "$cmd" </dev/null || rc=$? + if [ $rc != 0 ]; then + echo "$cmd: exit $rc" >&2 + exit $rc + fi + fi + fi + else + echo "$cmd: not found" >&2 + exit 1 + fi + done + fi + + # Send email to remaining addresses + test -n "$SMARTD_ADDRESS" || exit 0 + ;; +esac + +# Send mail or run command +if [ -n "$SMARTD_ADDRESS" ]; then + + # Send mail, use platform mailer by default + test -n "$SMARTD_MAILER" || SMARTD_MAILER=$os_mailer + if [ -n "$dryrun" ]; then + echo "exec '$SMARTD_MAILER' -s '$SMARTD_SUBJECT' $SMARTD_ADDRESS <<EOF +$fullmessage +EOF" + else + exec "$SMARTD_MAILER" -s "$SMARTD_SUBJECT" $SMARTD_ADDRESS <<EOF +$fullmessage +EOF + fi + +elif [ -n "$SMARTD_MAILER" ]; then + + # Run command + if [ -n "$dryrun" ]; then + echo "export SMARTD_SUBJECT='$SMARTD_SUBJECT'" + echo "export SMARTD_FULLMESSAGE='$SMARTD_FULLMESSAGE'" + echo "exec '$SMARTD_MAILER' </dev/null" + else + unset SMARTD_ADDRESS + exec "$SMARTD_MAILER" </dev/null + fi + +fi |