X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=configure;h=45fcffb69bb532a876cd9462090f97cb42ff54eb;hb=25c6339b223f17d1603702c0c87f06b252bb4949;hp=92a0b484d3539e3ad1365e845029d627449d6e6b;hpb=14743a78eb774d61fd952c4a4856346ced79b9fb;p=mirror_iproute2.git

diff --git a/configure b/configure
index 92a0b484..45fcffb6 100755
--- a/configure
+++ b/configure
@@ -1,11 +1,29 @@
-#! /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"}
 
+# 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}
+    : ${CC=gcc}
+    echo "PKG_CONFIG:=${PKG_CONFIG}" >>$CONFIG
+    echo "AR:=${AR}" >>$CONFIG
+    echo "CC:=${CC}" >>$CONFIG
+}
+
 check_atm()
 {
-cat >/tmp/atmtest.c <<EOF
+    cat >$TMPDIR/atmtest.c <<EOF
 #include <atm.h>
 int main(int argc, char **argv) {
 	struct atm_qos qos;
@@ -13,21 +31,27 @@ int main(int argc, char **argv) {
 	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
-else
-    echo no
-fi
-rm -f /tmp/atmtest.c /tmp/atmtest
+
+    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 >/tmp/ipttest.c <<EOF
+    #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 = {
@@ -44,27 +68,23 @@ int main(int argc, char **argv)
 	xtables_init_all(&test_globals, NFPROTO_IPV4);
 	return 0;
 }
-
 EOF
 
-if gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl -lxtables >/dev/null 2>&1
-then
-	echo "TC_CONFIG_XT:=y" >>Config
+    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 /tmp/ipttest.c /tmp/ipttest
+    fi
+    rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 }
 
 check_xt_old()
 {
-# bail if previous XT checks has already succeded.
-if grep TC_CONFIG_XT Config > /dev/null
-then
-	return
-fi
+    # bail if previous XT checks has already succeeded.
+    grep -q TC_CONFIG_XT $CONFIG && return
 
-#check if we need dont our internal header ..
-cat >/tmp/ipttest.c <<EOF
+    #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;
@@ -84,26 +104,21 @@ int main(int argc, char **argv) {
 }
 
 EOF
-gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
 
-if [ $? -eq 0 ]
-then
-	echo "TC_CONFIG_XT_OLD:=y" >>Config
+    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 /tmp/ipttest.c /tmp/ipttest
+    fi
+    rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 }
 
 check_xt_old_internal_h()
 {
-# bail if previous XT checks has already succeded.
-if grep TC_CONFIG_XT Config > /dev/null
-then
-	return
-fi
+    # bail if previous XT checks has already succeeded.
+    grep -q TC_CONFIG_XT $CONFIG && return
 
-#check if we need our own internal.h
-cat >/tmp/ipttest.c <<EOF
+    #check if we need our own internal.h
+    cat >$TMPDIR/ipttest.c <<EOF
 #include <xtables.h>
 #include "xt-internal.h"
 char *lib_dir;
@@ -124,34 +139,265 @@ int main(int argc, char **argv) {
 }
 
 EOF
-gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
-
-if [ $? -eq 0 ]
-then
-	echo "using old xtables with xt-internal.h"
-	echo "TC_CONFIG_XT_OLD_H:=y" >>Config
-fi
-rm -f /tmp/ipttest.c /tmp/ipttest
+	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
+	if ! grep TC_CONFIG_XT $CONFIG > /dev/null; then
 		echo "using iptables"
 	fi
 }
 
-echo "# Generated config based on" $INCLUDE >Config
+check_ipt_lib_dir()
+{
+	IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
+	if [ -n "$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
+  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
 
-echo -n " IPT	"
-check_xt
-check_xt_old
-check_xt_old_internal_h
-check_ipt
+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