blob: 307912aa9185f893d80cd7097e662f759cc125ba [file] [log] [blame]
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# This is not an autoconf generated configure
#
INCLUDE=${1:-"$PWD/include"}
# Output file which is input to Makefile
CONFIG=config.mk
# Make a temp directory in build tree.
TMPDIR=$(mktemp -d config.XXXXXX)
trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM
check_toolchain()
{
: ${PKG_CONFIG:=pkg-config}
: ${AR=ar}
: ${CC=gcc}
: ${YACC=bison}
echo "PKG_CONFIG:=${PKG_CONFIG}" >>$CONFIG
echo "AR:=${AR}" >>$CONFIG
echo "CC:=${CC}" >>$CONFIG
echo "YACC:=${YACC}" >>$CONFIG
}
check_atm()
{
cat >$TMPDIR/atmtest.c <<EOF
#include <atm.h>
int main(int argc, char **argv) {
struct atm_qos qos;
(void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0);
return 0;
}
EOF
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 || IPSET_PROTOCOL == 7
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
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
check_toolchain
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
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