| #!/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}" >>$CONFIG |
| } |
| |
| check_atm() |
| { |
| cat >$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 |
| 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_libbpf() |
| { |
| if ${PKG_CONFIG} libbpf --exists; then |
| echo "HAVE_LIBBPF:=y" >>$CONFIG |
| echo "yes" |
| |
| echo 'CFLAGS += -DHAVE_LIBBPF' `${PKG_CONFIG} libbpf --cflags` >> $CONFIG |
| echo 'LDLIBS += ' `${PKG_CONFIG} libbpf --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 "libbpf support: " |
| check_libbpf |
| |
| 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 |