Add --with-db-type-preference config param

cf/db.m4

@@ -4,6 +4,11 @@ dnl tests for various db libraries
 dnl
 
 AC_DEFUN([rk_DB],[
+AC_ARG_WITH(db-type-preference,
+                       AS_HELP_STRING([--with-db-type-preference],
+                                      [specify HDB backend DB type preference as whitespace-separated list]),
+                       [db_type_preference="$withval"],
+                       [db_type_preference="db3 db1 lmdb sqlite"])
 AC_ARG_WITH(berkeley-db,
                        AS_HELP_STRING([--with-berkeley-db],
                                       [enable support for berkeley db @<:@default=check@:>@]),
@@ -136,9 +141,18 @@ AS_IF([test "x$enable_mdb_db" != xno],
 		AC_CHECK_LIB(lmdb, mdb_env_create, have_lmdb=yes; LMDBLIB="-llmdb"
 		AC_DEFINE(HAVE_LMDB, 1, [define if you have the LMDB library]))])])
 
-AS_IF([test "x$have_db3" = xyes -a "$db_type" = unknown], db_type=db3, db_type=unknown)
-AS_IF([test "x$have_db1" = xyes -a "$db_type" = unknown], db_type=db1, db_type=unknown)
-AS_IF([test "x$have_lmdb" = xyes -a "$db_type" = unknown], db_type=lmdb, db_type=unknown)
+for db_type in unknown $db_type_preference; do
+    if eval test \"x\$have_${db_type}\" = xyes; then
+        break
+    fi
+    db_type=unknown
+done
+
+AS_IF([test "x$have_db3" = xyes -a "$db_type" = unknown], db_type=db3, db_type="$db_type")
+AS_IF([test "x$have_db1" = xyes -a "$db_type" = unknown], db_type=db1, db_type="$db_type")
+AS_IF([test "x$have_lmdb" = xyes -a "$db_type" = unknown], db_type=lmdb, db_type="$db_type")
+
+echo "CHECK: db_type=$db_type" > /dev/tty
 
 if test "$enable_ndbm_db" != "no"; then
 
@@ -252,4 +266,5 @@ AC_SUBST(LMDBLIB)dnl
 AC_SUBST(NDBMLIB)dnl
 AC_SUBST(NDBMLIB)dnl
 AC_SUBST(db_type)dnl
+AC_SUBST(db_type_preference)dnl
 ])

lib/hdb/hdb.c

@@ -67,6 +67,12 @@ static struct hdb_method methods[] = {
 #if HAVE_DB1 || HAVE_DB3
     { HDB_INTERFACE_VERSION, NULL, NULL, "db:",	hdb_db_create},
 #endif
+#if HAVE_DB1
+    { HDB_INTERFACE_VERSION, NULL, NULL, "db1:",	hdb_db_create},
+#endif
+#if HAVE_DB3
+    { HDB_INTERFACE_VERSION, NULL, NULL, "db3:",	hdb_db_create},
+#endif
 #if HAVE_DB1
     { HDB_INTERFACE_VERSION, NULL, NULL, "mit-db:",	hdb_mitdb_create},
 #endif

tests/db/Makefile.am

@@ -14,6 +14,7 @@ do_subst = sed -e 's,[@]srcdir[@],$(srcdir),g' \
 	-e 's,[@]top_builddir[@],$(top_builddir),g' \
 	-e 's,[@]objdir[@],$(top_builddir)/tests/db,g' \
 	-e 's,[@]default_db_type[@],$(db_type),g' \
+	-e 's,[@]db_type_preference[@],$(db_type_preference),g' \
 	-e 's,[@]EGREP[@],$(EGREP),g' 
 
 loaddump-db: loaddump-db.in Makefile

tests/db/check-aliases.in

@@ -48,7 +48,7 @@ R=TEST.H5L.SE
 
 kadmin="${TESTS_ENVIRONMENT} ../../kadmin/kadmin -l"
 
-KRB5_CONFIG="${objdir}/krb5.conf"
+KRB5_CONFIG="${objdir}/krb5.conf-${db_type}"
 export KRB5_CONFIG
 
 rm -f current-db*

tests/db/check-dbinfo.in

@@ -37,7 +37,10 @@
 srcdir="@srcdir@"
 objdir="@objdir@"
 
-KRB5_CONFIG="${objdir}/krb5.conf"
+default_db_type=@default_db_type@
+db_type=${1:-${default_db_type}}
+
+KRB5_CONFIG="${objdir}/krb5.conf-${db_type}"
 export KRB5_CONFIG
 
 ../../lib/hdb/test_dbinfo > dbinfo.out || exit 1

tests/db/have-db.in

@@ -38,6 +38,18 @@ top_builddir="@top_builddir@"
 
 . ${top_builddir}/tests/bin/setup-env
 
+if [ $# != 0 ]; then
+    for type in "$@"; do
+        for have_type in \
+            `${kdc} --builtin-hdb | sed 's/^builtin hdb backends: //'`; do
+            if [ "$type" = "$have_type" ]; then
+                exit 0
+            fi
+        done
+    done
+    exit 1
+fi
+
 list=`${kdc} --builtin-hdb | sed 's/^builtin hdb backends: //'`
 oldIFS="$IFS"
 IPS=,
@@ -52,6 +64,7 @@ while [ $# != 0 ] ; do
     db4:*) exit 0 ;;
     db3:*) exit 0 ;;
     lmdb:*) exit 0 ;;
+    sqlite:*) exit 0 ;;
     esac
     shift
 done

tests/kdc/Makefile.am

@@ -58,6 +58,7 @@ do_subst = $(heim_verbose)sed $(do_dlopen) \
 	-e 's,[@]pwport[@],$(pwport),g' \
 	-e 's,[@]objdir[@],$(top_builddir)/tests/kdc,g' \
 	-e 's,[@]top_builddir[@],$(top_builddir),g' \
+	-e 's,[@]db_type[@],$(db_type),g' \
 	-e 's,[@]EGREP[@],$(EGREP),g' 
 
 chmod = chmod

tests/kdc/check-iprop.in

@@ -35,8 +35,7 @@ top_builddir="@top_builddir@"
 env_setup="@env_setup@"
 objdir="@objdir@"
 
-default_db_type=@default_db_type@
-db_type=${1:-${default_db_type}}
+db_type=@db_type@
 
 . ${env_setup}
 
@@ -175,6 +174,11 @@ sleep 2
 KRB5_CONFIG="${objdir}/krb5-slave.conf" \
 ${kadmin} -l get host/bar@${R} > /dev/null 2>/dev/null && exit 1
 
+# See note below in LMDB sanity checking
+echo "Re-add host"
+${kadmin} -l add --random-key --use-defaults host/foo@${R} || exit 1
+${kadmin} -l add --random-key --use-defaults host/bar@${R} || exit 1
+
 echo "kill slave and remove log and database"
 > iprop-stats
 sh ${leaks_kill} ipropd-slave $ipds || exit 1
@@ -337,4 +341,14 @@ ${iprop_log} last-version > slave-last.tmp
 ${iprop_log} last-version > master-last.tmp
 cmp master-last.tmp slave-last.tmp || exit 1
 
+if [ "$db_type" = lmdb ]; then
+    # Sanity check that we have the same number of principals at the HDB
+    # and LMDB levels.
+    #
+    echo "checking that principals in DB == entries in LMDB"
+    princs=`${kadmin} -l list '*' | wc -l`
+    entries=`mdb_stat -n current-db.mdb | grep 'Entries:' | awk '{print $2}'`
+    [ "`expr 1 + "$princs"`" -eq "$entries" ] || exit 1
+fi
+
 exit $ec

tests/kdc/krb5.conf.in

@@ -72,14 +72,14 @@
 
 	database = {
 		label = { 
-			dbname = @objdir@/current-db@kdc@
+			dbname = @db_type@:@objdir@/current-db@kdc@
 			realm = TEST.H5L.SE
 			mkey_file = @objdir@/mkey.file
 			acl_file = @srcdir@/heimdal.acl
 			log_file = @objdir@/current@kdc@.log
 		}
 		label2 = { 
-			dbname = @objdir@/current-db@kdc@
+			dbname = @db_type@:@objdir@/current-db@kdc@
 			realm = TEST2.H5L.SE
 			mkey_file = @objdir@/mkey.file
 			acl_file = @srcdir@/heimdal.acl