61 lines
2.7 KiB
Bash
Executable file
61 lines
2.7 KiB
Bash
Executable file
#!/bin/sh
|
|
# SPDX-FileCopyrightText: 2024 Splunk, Inc.
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
#
|
|
# credit for improvement to http://splunk-base.splunk.com/answers/41391/rlogsh-using-too-much-cpu
|
|
|
|
# shellcheck disable=SC1091
|
|
. "$(dirname "$0")"/common.sh
|
|
|
|
OLD_SEEK_FILE=$SPLUNK_HOME/var/run/splunk/unix_audit_seekfile # For handling upgrade scenarios
|
|
CURRENT_AUDIT_FILE=/var/log/audit/audit.log # For handling upgrade scenarios
|
|
SEEK_FILE=$SPLUNK_HOME/var/run/splunk/unix_audit_seektime
|
|
TMP_ERROR_FILTER_FILE=$SPLUNK_HOME/var/run/splunk/unix_rlog_error_tmpfile # For filering out "no matches" error from stderr
|
|
AUDIT_FILE="/var/log/audit/audit.log*"
|
|
|
|
if [ "$KERNEL" = "Linux" ] ; then
|
|
assertHaveCommand service
|
|
assertHaveCommandGivenPath /sbin/ausearch
|
|
if [ -n "$(service auditd status 2>/dev/null)" ] && [ "$(service auditd status 2>/dev/null)" ] ; then
|
|
CURRENT_TIME=$(date --date="1 seconds ago" "+%x %T") # 1 second ago to avoid data loss
|
|
|
|
if [ -e "$SEEK_FILE" ] ; then
|
|
SEEK_TIME=$(head -1 "$SEEK_FILE")
|
|
# shellcheck disable=SC2086
|
|
awk " { print } " $AUDIT_FILE | /sbin/ausearch -i -ts $SEEK_TIME -te $CURRENT_TIME 2>$TMP_ERROR_FILTER_FILE | grep -v "^----";
|
|
# shellcheck disable=SC2086
|
|
grep -v "<no matches>" < $TMP_ERROR_FILTER_FILE 1>&2
|
|
|
|
elif [ -e "$OLD_SEEK_FILE" ] ; then
|
|
rm -rf "$OLD_SEEK_FILE" # remove previous checkpoint
|
|
# start ingesting from the first entry of current audit file
|
|
# shellcheck disable=SC2086
|
|
awk ' { print } ' $CURRENT_AUDIT_FILE | /sbin/ausearch -i -te $CURRENT_TIME 2>$TMP_ERROR_FILTER_FILE | grep -v "^----";
|
|
# shellcheck disable=SC2086
|
|
grep -v "<no matches>" <$TMP_ERROR_FILTER_FILE 1>&2
|
|
|
|
else
|
|
# no checkpoint found
|
|
# shellcheck disable=SC2086
|
|
awk " { print } " $AUDIT_FILE | /sbin/ausearch -i -te $CURRENT_TIME 2>$TMP_ERROR_FILTER_FILE | grep -v "^----";
|
|
# shellcheck disable=SC2086
|
|
grep -v "<no matches>" <$TMP_ERROR_FILTER_FILE 1>&2
|
|
fi
|
|
echo "$CURRENT_TIME" > "$SEEK_FILE" # Checkpoint+
|
|
|
|
else # Added this condition to get error logs
|
|
echo "error occured while running 'service auditd status' command in rlog.sh script. Output : $(service auditd status). Command exited with exit code $?" 1>&2
|
|
fi
|
|
# remove temporary error redirection file if it exists
|
|
# shellcheck disable=SC2086
|
|
rm $TMP_ERROR_FILTER_FILE 2>/dev/null
|
|
|
|
elif [ "$KERNEL" = "SunOS" ] ; then
|
|
:
|
|
elif [ "$KERNEL" = "Darwin" ] ; then
|
|
:
|
|
elif [ "$KERNEL" = "HP-UX" ] ; then
|
|
:
|
|
elif [ "$KERNEL" = "FreeBSD" ] ; then
|
|
:
|
|
fi
|