postgresql/contrib/sepgsql/launcher

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#!/bin/sh
#
# A wrapper script to launch psql command in regression test
#
# Copyright (c) 2010-2012, PostgreSQL Global Development Group
#
# -------------------------------------------------------------------------
if [ $# -lt 1 ]; then
echo "usage: `basename $0` <command> [options...]"
exit 1
fi
RUNCON=`which runcon`
if [ ! -e "$RUNCON" ]; then
echo "runcon command is not found"
exit 1
fi
#
# Read SQL from stdin
#
TEMP=`mktemp`
Fix sepgsql regression tests (9.2-only patch). The regression tests for sepgsql were broken by changes in the base distro as-shipped policies. Specifically, definition of unconfined_t in the system default policy was changed to bypass multi-category rules, which the regression test depended on. Fix that by defining a custom privileged domain (sepgsql_regtest_superuser_t) and using it instead of system's unconfined_t domain. The new sepgsql_regtest_superuser_t domain performs almost like the current unconfined_t, but restricted by multi-category policy as the traditional unconfined_t was. The custom policy module is a self defined domain, and so should not be affected by related future system policy changes. However, it still uses the unconfined_u:unconfined_r pair for selinux-user and role. Those definitions have not been changed for several years and seem less risky to rely on than the unconfined_t domain. Additionally, if we define custom user/role, they would need to be manually defined at the operating system level, adding more complexity to an already non-standard and complex regression test. Applies only to 9.2. Unlike the previous similar patch, commit 794e2558b, this also fixes a bug related to processing SELECT INTO statement. Because v9.2 didn't have ObjectAccessPostCreate to inform the context when a relation is newly created, sepgsql had an alternative method. However, related code in sepgsql_object_access() neglected to consider T_CreateTableAsStmt, thus no label was assigned on the new relation. This logic was removed and replaced starting in 9.3. Patch by Kohei KaiGai.
2015-09-22 17:58:38 -04:00
CONTEXT="unconfined_u:unconfined_r:sepgsql_regtest_superuser_t:s0-s0:c0.c255"
while IFS='\\n' read LINE
do
if echo "$LINE" | grep -q "^-- @SECURITY-CONTEXT="; then
if [ -s "$TEMP" ]; then
if [ -n "$CONTEXT" ]; then
"$RUNCON" "$CONTEXT" $* < "$TEMP"
else
$* < $TEMP
fi
truncate -s0 $TEMP
fi
CONTEXT=`echo "$LINE" | sed 's/^-- @SECURITY-CONTEXT=//g'`
LINE="SELECT sepgsql_getcon(); -- confirm client privilege"
fi
echo "$LINE" >> $TEMP
done
if [ -s "$TEMP" ]; then
if [ -n "$CONTEXT" ]; then
"$RUNCON" "$CONTEXT" $* < "$TEMP"
else
$* < $TEMP
fi
fi
# cleanup temp file
rm -f $TEMP