diff options
Diffstat (limited to '')
| -rwxr-xr-x | configure | 620 |
1 files changed, 620 insertions, 0 deletions
diff --git a/configure b/configure new file mode 100755 index 0000000..928048b --- /dev/null +++ b/configure @@ -0,0 +1,620 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# This is not an autoconf generated configure + +INCLUDE="$PWD/include" +PREFIX="/usr" +LIBDIR="\${prefix}/lib" +COLOR="never" + +# Output file which is input to Makefile +CONFIG=config.mk + +# Make a temp directory in build tree. +TMPDIR=$(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_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 $TMPDIR/ipttest +} + +check_lib_dir() +{ + LIBDIR=$(echo $LIBDIR | sed "s|\${prefix}|$PREFIX|") + + echo -n "lib directory: " + echo "$LIBDIR" + echo "LIBDIR:=$LIBDIR" >> $CONFIG +} + +check_setns() +{ + cat >$TMPDIR/setnstest.c <<EOF +#define _GNU_SOURCE +#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 $TMPDIR/setnstest +} + +check_name_to_handle_at() +{ + cat >$TMPDIR/name_to_handle_at_test.c <<EOF +#define _GNU_SOURCE +#include <sys/types.h> +#include <fcntl.h> +int main(int argc, char **argv) +{ + struct file_handle *fhp; + int mount_id, flags, dirfd; + char *pathname; + name_to_handle_at(dirfd, pathname, fhp, &mount_id, flags); + return 0; +} +EOF + if $CC -I$INCLUDE -o $TMPDIR/name_to_handle_at_test $TMPDIR/name_to_handle_at_test.c >/dev/null 2>&1; then + echo "yes" + echo "CFLAGS += -DHAVE_HANDLE_AT" >>$CONFIG + else + echo "no" + fi + rm -f $TMPDIR/name_to_handle_at_test.c $TMPDIR/name_to_handle_at_test +} + +check_ipset() +{ + cat >$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 +} + +have_libbpf_basic() +{ + cat >$TMPDIR/libbpf_test.c <<EOF +#include <bpf/libbpf.h> +int main(int argc, char **argv) { + bpf_program__set_autoload(NULL, false); + bpf_map__ifindex(NULL); + bpf_map__set_pin_path(NULL, NULL); + bpf_object__open_file(NULL, NULL); + return 0; +} +EOF + + $CC -o $TMPDIR/libbpf_test $TMPDIR/libbpf_test.c $LIBBPF_CFLAGS $LIBBPF_LDLIBS >/dev/null 2>&1 + local ret=$? + + rm -f $TMPDIR/libbpf_test.c $TMPDIR/libbpf_test + return $ret +} + +have_libbpf_sec_name() +{ + cat >$TMPDIR/libbpf_sec_test.c <<EOF +#include <bpf/libbpf.h> +int main(int argc, char **argv) { + void *ptr; + bpf_program__section_name(NULL); + return 0; +} +EOF + + $CC -o $TMPDIR/libbpf_sec_test $TMPDIR/libbpf_sec_test.c $LIBBPF_CFLAGS $LIBBPF_LDLIBS >/dev/null 2>&1 + local ret=$? + + rm -f $TMPDIR/libbpf_sec_test.c $TMPDIR/libbpf_sec_test + return $ret +} + +check_force_libbpf_on() +{ + # if set LIBBPF_FORCE=on but no libbpf support, just exist the config + # process to make sure we don't build without libbpf. + if [ "$LIBBPF_FORCE" = on ]; then + echo " LIBBPF_FORCE=on set, but couldn't find a usable libbpf" + exit 1 + fi +} + +check_libbpf() +{ + # if set LIBBPF_FORCE=off, disable libbpf entirely + if [ "$LIBBPF_FORCE" = off ]; then + echo "no" + return + fi + + if ! ${PKG_CONFIG} libbpf --exists && [ -z "$LIBBPF_DIR" ] ; then + echo "no" + check_force_libbpf_on + return + fi + + if [ $(uname -m) = x86_64 ]; then + local LIBBPF_LIBDIR="${LIBBPF_DIR}/usr/lib64" + else + local LIBBPF_LIBDIR="${LIBBPF_DIR}/usr/lib" + fi + + if [ -n "$LIBBPF_DIR" ]; then + LIBBPF_CFLAGS="-I${LIBBPF_DIR}/usr/include" + LIBBPF_LDLIBS="${LIBBPF_LIBDIR}/libbpf.a -lz -lelf" + LIBBPF_VERSION=$(PKG_CONFIG_LIBDIR=${LIBBPF_LIBDIR}/pkgconfig ${PKG_CONFIG} libbpf --modversion) + else + LIBBPF_CFLAGS=$(${PKG_CONFIG} libbpf --cflags) + LIBBPF_LDLIBS=$(${PKG_CONFIG} libbpf --libs) + LIBBPF_VERSION=$(${PKG_CONFIG} libbpf --modversion) + fi + + if ! have_libbpf_basic; then + echo "no" + echo " libbpf version $LIBBPF_VERSION is too low, please update it to at least 0.1.0" + check_force_libbpf_on + return + else + echo "HAVE_LIBBPF:=y" >> $CONFIG + echo 'CFLAGS += -DHAVE_LIBBPF ' $LIBBPF_CFLAGS >> $CONFIG + echo "CFLAGS += -DLIBBPF_VERSION=\\\"$LIBBPF_VERSION\\\"" >> $CONFIG + echo 'LDLIBS += ' $LIBBPF_LDLIBS >> $CONFIG + + if [ -z "$LIBBPF_DIR" ]; then + echo "CFLAGS += -DLIBBPF_DYNAMIC" >> $CONFIG + fi + fi + + # bpf_program__title() is deprecated since libbpf 0.2.0, use + # bpf_program__section_name() instead if we support + if have_libbpf_sec_name; then + echo "HAVE_LIBBPF_SECTION_NAME:=y" >> $CONFIG + echo 'CFLAGS += -DHAVE_LIBBPF_SECTION_NAME ' >> $CONFIG + fi + + echo "yes" + echo " libbpf version $LIBBPF_VERSION" +} + +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_tirpc() +{ + if ${PKG_CONFIG} libtirpc --exists; then + echo "HAVE_RPC:=y" >>$CONFIG + echo "yes" + + echo 'LDLIBS +=' "$(${PKG_CONFIG} --libs libtirpc)" >>$CONFIG + echo 'CFLAGS += -DHAVE_RPC' "$(${PKG_CONFIG} --cflags libtirpc)" >>$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 +#define _GNU_SOURCE +#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)" >> $CONFIG + else + echo "no" + fi +} + +check_color() +{ + case "$COLOR" in + never) + echo 'CONF_COLOR:=COLOR_OPT_NEVER' >> $CONFIG + echo 'never' + ;; + auto) + echo 'CONF_COLOR:=COLOR_OPT_AUTO' >> $CONFIG + echo 'auto' + ;; + always) + echo 'CONF_COLOR:=COLOR_OPT_ALWAYS' >> $CONFIG + echo 'always' + ;; + esac +} + +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 +} + +usage() +{ + cat <<EOF +Usage: $0 [OPTIONS] + --color <never|auto|always> Default color output configuration. Available options: + never: color output is disabled (default) + auto: color output is enabled if stdout is a terminal + always: color output is enabled regardless of stdout state + --include_dir <dir> Path to iproute2 include dir + --libdir <dir> Path to iproute2 lib dir + --libbpf_dir <dir> Path to libbpf DESTDIR + --libbpf_force <on|off> Enable/disable libbpf by force. Available options: + on: require link against libbpf, quit config if no libbpf support + off: disable libbpf probing + --prefix <dir> Path prefix of the lib files to install + -h | --help Show this usage info +EOF + exit $1 +} + +# Compat with the old INCLUDE path setting method. +if [ $# -eq 1 ] && [ "$(echo $1 | cut -c 1)" != '-' ]; then + INCLUDE="$1" +else + while [ "$#" -gt 0 ]; do + case "$1" in + --color) + shift + COLOR="$1" ;; + --color=*) + COLOR="${1#*=}" ;; + --include_dir) + shift + INCLUDE="$1" ;; + --include_dir=*) + INCLUDE="${1#*=}" ;; + --libdir) + shift + LIBDIR="$1" ;; + --libdir=*) + LIBDIR="${1#*=}" ;; + --libbpf_dir) + shift + LIBBPF_DIR="$1" ;; + --libbpf_dir=*) + LIBBPF_DIR="${1#*=}" ;; + --libbpf_force) + shift + LIBBPF_FORCE="$1" ;; + --libbpf_force=*) + LIBBPF_FORCE="${1#*=}" ;; + --prefix) + shift + PREFIX="$1" ;; + --prefix=*) + PREFIX="${1#*=}" ;; + -h | --help) + usage 0 ;; + --*) + ;; + *) + usage 1 ;; + esac + [ "$#" -gt 0 ] && shift + done +fi + +case "$COLOR" in + never) ;; + auto) ;; + always) ;; + *) usage 1 ;; +esac +[ -d "$INCLUDE" ] || usage 1 +if [ "${LIBBPF_DIR-unused}" != "unused" ]; then + [ -d "$LIBBPF_DIR" ] || usage 1 +fi +if [ "${LIBBPF_FORCE-unused}" != "unused" ]; then + if [ "$LIBBPF_FORCE" != 'on' ] && [ "$LIBBPF_FORCE" != 'off' ]; then + usage 1 + fi +fi +[ -z "$PREFIX" ] && usage 1 +[ -z "$LIBDIR" ] && usage 1 + +echo "# Generated config based on" $INCLUDE >$CONFIG +quiet_config >> $CONFIG + +check_toolchain + +echo "TC schedulers" + +check_xtables +if ! grep -q TC_CONFIG_NO_XT $CONFIG; then + echo -n " IPT " + check_xt + check_xt_old + check_xt_old_internal_h + + echo -n " IPSET " + check_ipset +fi + +echo +check_lib_dir + +echo -n "libc has setns: " +check_setns + +echo -n "libc has name_to_handle_at: " +check_name_to_handle_at + +echo -n "SELinux support: " +check_selinux + +echo -n "libtirpc support: " +check_tirpc + +echo -n "libbpf support: " +check_libbpf + +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 -n "color output: " +check_color + +echo >> $CONFIG +echo "%.o: %.c" >> $CONFIG +echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CPPFLAGS) -c -o $@ $<' >> $CONFIG |