-#! /bin/bash
-# This is not an autconf generated configure
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# This is not an autoconf generated configure
#
INCLUDE=${1:-"$PWD/include"}
-echo "# Generated config based on" $INCLUDE >Config
+# Output file which is input to Makefile
+CONFIG=config.mk
-echo "TC schedulers"
+# Make a temp directory in build tree.
+TMPDIR=$(mktemp -d config.XXXXXX)
+trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM
-echo -n " ATM "
-cat >/tmp/atmtest.c <<EOF
+check_toolchain()
+{
+ : ${PKG_CONFIG:=pkg-config}
+ : ${AR=ar}
+ : ${CC=gcc}
+ echo "PKG_CONFIG:=${PKG_CONFIG}" >>$CONFIG
+ echo "AR:=${AR}" >>$CONFIG
+ echo "CC:=${CC}" >>$CONFIG
+}
+
+check_atm()
+{
+ cat >$TMPDIR/atmtest.c <<EOF
#include <atm.h>
int main(int argc, char **argv) {
struct atm_qos qos;
return 0;
}
EOF
-gcc -I$INCLUDE -o /tmp/atmtest /tmp/atmtest.c -latm >/dev/null 2>&1
-if [ $? -eq 0 ]
-then
- echo "TC_CONFIG_ATM:=y" >>Config
- echo yes
+
+ if $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1; then
+ echo "TC_CONFIG_ATM:=y" >>$CONFIG
+ echo yes
+ else
+ echo no
+ fi
+ rm -f $TMPDIR/atmtest.c $TMPDIR/atmtest
+}
+
+check_xtables()
+{
+ if ! ${PKG_CONFIG} xtables --exists; then
+ echo "TC_CONFIG_NO_XT:=y" >>$CONFIG
+ fi
+}
+
+check_xt()
+{
+ #check if we have xtables from iptables >= 1.4.5.
+ cat >$TMPDIR/ipttest.c <<EOF
+#include <xtables.h>
+#include <linux/netfilter.h>
+static struct xtables_globals test_globals = {
+ .option_offset = 0,
+ .program_name = "tc-ipt",
+ .program_version = XTABLES_VERSION,
+ .orig_opts = NULL,
+ .opts = NULL,
+ .exit_err = NULL,
+};
+
+int main(int argc, char **argv)
+{
+ xtables_init_all(&test_globals, NFPROTO_IPV4);
+ return 0;
+}
+EOF
+
+ if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL \
+ $(${PKG_CONFIG} xtables --cflags --libs) -ldl >/dev/null 2>&1; then
+ echo "TC_CONFIG_XT:=y" >>$CONFIG
+ echo "using xtables"
+ fi
+ rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
+}
+
+check_xt_old()
+{
+ # bail if previous XT checks has already succeeded.
+ grep -q TC_CONFIG_XT $CONFIG && return
+
+ #check if we don't need our internal header ..
+ cat >$TMPDIR/ipttest.c <<EOF
+#include <xtables.h>
+char *lib_dir;
+unsigned int global_option_offset = 0;
+const char *program_version = XTABLES_VERSION;
+const char *program_name = "tc-ipt";
+struct afinfo afinfo = {
+ .libprefix = "libxt_",
+};
+
+void exit_error(enum exittype status, const char *msg, ...)
+{
+}
+
+int main(int argc, char **argv) {
+
+ return 0;
+}
+
+EOF
+
+ if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1; then
+ echo "TC_CONFIG_XT_OLD:=y" >>$CONFIG
+ echo "using old xtables (no need for xt-internal.h)"
+ fi
+ rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
+}
+
+check_xt_old_internal_h()
+{
+ # bail if previous XT checks has already succeeded.
+ grep -q TC_CONFIG_XT $CONFIG && return
+
+ #check if we need our own internal.h
+ cat >$TMPDIR/ipttest.c <<EOF
+#include <xtables.h>
+#include "xt-internal.h"
+char *lib_dir;
+unsigned int global_option_offset = 0;
+const char *program_version = XTABLES_VERSION;
+const char *program_name = "tc-ipt";
+struct afinfo afinfo = {
+ .libprefix = "libxt_",
+};
+
+void exit_error(enum exittype status, const char *msg, ...)
+{
+}
+
+int main(int argc, char **argv) {
+
+ return 0;
+}
+
+EOF
+ if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1; then
+ echo "using old xtables with xt-internal.h"
+ echo "TC_CONFIG_XT_OLD_H:=y" >>$CONFIG
+ fi
+ rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
+}
+
+check_ipt()
+{
+ if ! grep TC_CONFIG_XT $CONFIG > /dev/null; then
+ echo "using iptables"
+ fi
+}
+
+check_ipt_lib_dir()
+{
+ IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
+ if [ -n "$IPT_LIB_DIR" ]; then
+ echo $IPT_LIB_DIR
+ echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> $CONFIG
+ return
+ fi
+
+ for dir in /lib /usr/lib /usr/local/lib; do
+ for file in "xtables" "iptables"; do
+ file="$dir/$file/lib*t_*so"
+ if [ -f $file ]; then
+ echo ${file%/*}
+ echo "IPT_LIB_DIR:=${file%/*}" >> $CONFIG
+ return
+ fi
+ done
+ done
+ echo "not found!"
+}
+
+check_setns()
+{
+ cat >$TMPDIR/setnstest.c <<EOF
+#include <sched.h>
+int main(int argc, char **argv)
+{
+ (void)setns(0,0);
+ return 0;
+}
+EOF
+ if $CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1; then
+ echo "IP_CONFIG_SETNS:=y" >>$CONFIG
+ echo "yes"
+ echo "CFLAGS += -DHAVE_SETNS" >>$CONFIG
+ else
+ echo "no"
+ fi
+ rm -f $TMPDIR/setnstest.c $TMPDIR/setnstest
+}
+
+check_ipset()
+{
+ cat >$TMPDIR/ipsettest.c <<EOF
+#include <linux/netfilter/ipset/ip_set.h>
+#ifndef IP_SET_INVALID
+#define IPSET_DIM_MAX 3
+typedef unsigned short ip_set_id_t;
+#endif
+#include <linux/netfilter/xt_set.h>
+
+struct xt_set_info info;
+#if IPSET_PROTOCOL == 6
+int main(void)
+{
+ return IPSET_MAXNAMELEN;
+}
+#else
+#error unknown ipset version
+#endif
+EOF
+
+ if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1; then
+ echo "TC_CONFIG_IPSET:=y" >>$CONFIG
+ echo "yes"
+ else
+ echo "no"
+ fi
+ rm -f $TMPDIR/ipsettest.c $TMPDIR/ipsettest
+}
+
+check_elf()
+{
+ if ${PKG_CONFIG} libelf --exists; then
+ echo "HAVE_ELF:=y" >>$CONFIG
+ echo "yes"
+
+ echo 'CFLAGS += -DHAVE_ELF' `${PKG_CONFIG} libelf --cflags` >> $CONFIG
+ echo 'LDLIBS += ' `${PKG_CONFIG} libelf --libs` >>$CONFIG
+ else
+ echo "no"
+ fi
+}
+
+check_selinux()
+# SELinux is a compile time option in the ss utility
+{
+ if ${PKG_CONFIG} libselinux --exists; then
+ echo "HAVE_SELINUX:=y" >>$CONFIG
+ echo "yes"
+
+ echo 'LDLIBS +=' `${PKG_CONFIG} --libs libselinux` >>$CONFIG
+ echo 'CFLAGS += -DHAVE_SELINUX' `${PKG_CONFIG} --cflags libselinux` >>$CONFIG
+ else
+ echo "no"
+ fi
+}
+
+check_mnl()
+{
+ if ${PKG_CONFIG} libmnl --exists; then
+ echo "HAVE_MNL:=y" >>$CONFIG
+ echo "yes"
+
+ echo 'CFLAGS += -DHAVE_LIBMNL' `${PKG_CONFIG} libmnl --cflags` >>$CONFIG
+ echo 'LDLIBS +=' `${PKG_CONFIG} libmnl --libs` >> $CONFIG
+ else
+ echo "no"
+ fi
+}
+
+check_berkeley_db()
+{
+ cat >$TMPDIR/dbtest.c <<EOF
+#include <fcntl.h>
+#include <stdlib.h>
+#include <db_185.h>
+int main(int argc, char **argv) {
+ dbopen("/tmp/xxx_test_db.db", O_CREAT|O_RDWR, 0644, DB_HASH, NULL);
+ return 0;
+}
+EOF
+ if $CC -I$INCLUDE -o $TMPDIR/dbtest $TMPDIR/dbtest.c -ldb >/dev/null 2>&1; then
+ echo "HAVE_BERKELEY_DB:=y" >>$CONFIG
+ echo "yes"
+ else
+ echo "no"
+ fi
+ rm -f $TMPDIR/dbtest.c $TMPDIR/dbtest
+}
+
+check_strlcpy()
+{
+ cat >$TMPDIR/strtest.c <<EOF
+#include <string.h>
+int main(int argc, char **argv) {
+ char dst[10];
+ strlcpy(dst, "test", sizeof(dst));
+ return 0;
+}
+EOF
+ if $CC -I$INCLUDE -o $TMPDIR/strtest $TMPDIR/strtest.c >/dev/null 2>&1; then
+ echo "no"
+ else
+ if ${PKG_CONFIG} libbsd --exists; then
+ echo 'CFLAGS += -DHAVE_LIBBSD' `${PKG_CONFIG} libbsd --cflags` >>$CONFIG
+ echo 'LDLIBS +=' `${PKG_CONFIG} libbsd --libs` >> $CONFIG
+ echo "no"
+ else
+ echo 'CFLAGS += -DNEED_STRLCPY' >>$CONFIG
+ echo "yes"
+ fi
+ fi
+ rm -f $TMPDIR/strtest.c $TMPDIR/strtest
+}
+
+check_cap()
+{
+ if ${PKG_CONFIG} libcap --exists; then
+ echo "HAVE_CAP:=y" >>$CONFIG
+ echo "yes"
+
+ echo 'CFLAGS += -DHAVE_LIBCAP' `${PKG_CONFIG} libcap --cflags` >>$CONFIG
+ echo 'LDLIBS +=' `${PKG_CONFIG} libcap --libs` >> $CONFIG
+ else
+ echo "no"
+ fi
+}
+
+quiet_config()
+{
+ cat <<EOF
+# user can control verbosity similar to kernel builds (e.g., V=1)
+ifeq ("\$(origin V)", "command line")
+ VERBOSE = \$(V)
+endif
+ifndef VERBOSE
+ VERBOSE = 0
+endif
+ifeq (\$(VERBOSE),1)
+ Q =
else
- echo no
-fi
-rm -f /tmp/atmtest.c /tmp/atmtest
+ Q = @
+endif
+
+ifeq (\$(VERBOSE), 0)
+ QUIET_CC = @echo ' CC '\$@;
+ QUIET_AR = @echo ' AR '\$@;
+ QUIET_LINK = @echo ' LINK '\$@;
+ QUIET_YACC = @echo ' YACC '\$@;
+ QUIET_LEX = @echo ' LEX '\$@;
+endif
+EOF
+}
+
+echo "# Generated config based on" $INCLUDE >$CONFIG
+quiet_config >> $CONFIG
-# hacks for now
-echo "TC actions"
+check_toolchain
-if [ -e "tc/m_gact.c" ]
-then
- echo " GACT found"
- echo "TC_CONFIG_ACTION_GACT=y" >>Config
- echo "TC_CONFIG_ACTION_PROB=y" >>Config
+echo "TC schedulers"
+
+echo -n " ATM "
+check_atm
+
+check_xtables
+if ! grep -q TC_CONFIG_NO_XT $CONFIG; then
+ echo -n " IPT "
+ check_xt
+ check_xt_old
+ check_xt_old_internal_h
+ check_ipt
+
+ echo -n " IPSET "
+ check_ipset
fi
-if [ -e "tc/m_mirred.c" ]
-then
- echo " MIRRED found"
- echo "TC_CONFIG_ACTION_MIRRED=y" >>Config
+echo
+if ! grep -q TC_CONFIG_NO_XT $CONFIG; then
+ echo -n "iptables modules directory: "
+ check_ipt_lib_dir
fi
+echo -n "libc has setns: "
+check_setns
+
+echo -n "SELinux support: "
+check_selinux
+
+echo -n "ELF support: "
+check_elf
+
+echo -n "libmnl support: "
+check_mnl
+
+echo -n "Berkeley DB: "
+check_berkeley_db
+
+echo -n "need for strlcpy: "
+check_strlcpy
+
+echo -n "libcap support: "
+check_cap
+
+echo >> $CONFIG
+echo "%.o: %.c" >> $CONFIG
+echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CPPFLAGS) -c -o $@ $<' >> $CONFIG
projects / mirror_iproute2.git / blobdiff