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#!/bin/sh
#
# Send email to ZED_EMAIL in response to a given zevent.
#
# This is a generic script than can be symlinked to a file in the
# enabled-zedlets directory to have an email sent when a particular class of
# zevents occurs. The symlink filename must begin with the zevent (sub)class
# string (e.g., "probe_failure-email.sh" for the "probe_failure" subclass).
# Refer to the zed(8) manpage for details.
#
# Exit codes:
# 0: email sent
# 1: email failed
# 2: email not configured
# 3: email suppressed
[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
. "${ZED_ZEDLET_DIR}/zed-functions.sh"
[ -n "${ZED_EMAIL}" ] || exit 2
# Rate-limit the message based in part on the filename.
#
rate_limit_tag="${ZEVENT_POOL};${ZEVENT_SUBCLASS};$(basename -- "$0")"
rate_limit_interval="${ZED_EMAIL_INTERVAL_SECS}"
zed_rate_limit "${rate_limit_tag}" "${rate_limit_interval}" || exit 3
umask 077
pool_str="${ZEVENT_POOL:+" for ${ZEVENT_POOL}"}"
host_str=" on $(hostname)"
email_subject="ZFS ${ZEVENT_SUBCLASS} event${pool_str}${host_str}"
email_pathname="${TMPDIR:="/tmp"}/$(basename -- "$0").${ZEVENT_EID}.$$"
{
echo "ZFS has posted the following event:"
echo
echo " eid: ${ZEVENT_EID}"
echo " class: ${ZEVENT_SUBCLASS}"
echo " host: $(hostname)"
echo " time: ${ZEVENT_TIME_STRING}"
if [ -n "${ZEVENT_VDEV_PATH}" ]; then
echo " vpath: ${ZEVENT_VDEV_PATH}"
[ -n "${ZEVENT_VDEV_TYPE}" ] && echo " vtype: ${ZEVENT_VDEV_TYPE}"
fi
[ -n "${ZEVENT_POOL}" ] && [ -x "${ZPOOL}" ] \
&& "${ZPOOL}" status "${ZEVENT_POOL}"
} > "${email_pathname}"
mail -s "${email_subject}" "${ZED_EMAIL}" < "${email_pathname}"
mail_status=$?
if [ "${mail_status}" -ne 0 ]; then
zed_log_msg "mail exit=${mail_status}"
exit 1
fi
rm -f "${email_pathname}"
exit 0
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