configure

   1 #! /bin/bash
   2 # This is not an autconf generated configure
   3 #
   4 INCLUDE=${1:-"$PWD/include"}
   5
   6 # Make a temp directory in build tree.
   7 TMPDIR=$(mktemp -d config.XXXXXX)
   8 trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM
   9
  10 check_toolchain()
  11 {
  12 : ${PKG_CONFIG:=pkg-config}
  13 : ${AR=ar}
  14 : ${CC=gcc}
  15 echo "AR:=${AR}" >>Config
  16 echo "CC:=${CC}" >>Config
  17 }
  18
  19 check_atm()
  20 {
  21 cat >$TMPDIR/atmtest.c <<EOF
  22 #include <atm.h>
  23 int main(int argc, char **argv) {
  24         struct atm_qos qos;
  25         (void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0);
  26         return 0;
  27 }
  28 EOF
  29 $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1
  30 if [ $? -eq 0 ]
  31 then
  32     echo "TC_CONFIG_ATM:=y" >>Config
  33     echo yes
  34 else
  35     echo no
  36 fi
  37 rm -f $TMPDIR/atmtest.c $TMPDIR/atmtest
  38 }
  39
  40 check_xt()
  41 {
  42 #check if we have xtables from iptables >= 1.4.5.
  43 cat >$TMPDIR/ipttest.c <<EOF
  44 #include <xtables.h>
  45 #include <linux/netfilter.h>
  46 static struct xtables_globals test_globals = {
  47         .option_offset = 0,
  48         .program_name = "tc-ipt",
  49         .program_version = XTABLES_VERSION,
  50         .orig_opts = NULL,
  51         .opts = NULL,
  52         .exit_err = NULL,
  53 };
  54
  55 int main(int argc, char **argv)
  56 {
  57         xtables_init_all(&test_globals, NFPROTO_IPV4);
  58         return 0;
  59 }
  60
  61 EOF
  62
  63 if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL $(${PKG_CONFIG} xtables --cflags --libs) -ldl >/dev/null 2>&1
  64 then
  65         echo "TC_CONFIG_XT:=y" >>Config
  66         echo "using xtables"
  67 fi
  68 rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
  69 }
  70
  71 check_xt_old()
  72 {
  73 # bail if previous XT checks has already succeded.
  74 if grep TC_CONFIG_XT Config > /dev/null
  75 then
  76         return
  77 fi
  78
  79 #check if we dont need our internal header ..
  80 cat >$TMPDIR/ipttest.c <<EOF
  81 #include <xtables.h>
  82 char *lib_dir;
  83 unsigned int global_option_offset = 0;
  84 const char *program_version = XTABLES_VERSION;
  85 const char *program_name = "tc-ipt";
  86 struct afinfo afinfo = {
  87         .libprefix      = "libxt_",
  88 };
  89
  90 void exit_error(enum exittype status, const char *msg, ...)
  91 {
  92 }
  93
  94 int main(int argc, char **argv) {
  95
  96         return 0;
  97 }
  98
  99 EOF
 100 $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1
 101
 102 if [ $? -eq 0 ]
 103 then
 104         echo "TC_CONFIG_XT_OLD:=y" >>Config
 105         echo "using old xtables (no need for xt-internal.h)"
 106 fi
 107 rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 108 }
 109
 110 check_xt_old_internal_h()
 111 {
 112 # bail if previous XT checks has already succeded.
 113 if grep TC_CONFIG_XT Config > /dev/null
 114 then
 115         return
 116 fi
 117
 118 #check if we need our own internal.h
 119 cat >$TMPDIR/ipttest.c <<EOF
 120 #include <xtables.h>
 121 #include "xt-internal.h"
 122 char *lib_dir;
 123 unsigned int global_option_offset = 0;
 124 const char *program_version = XTABLES_VERSION;
 125 const char *program_name = "tc-ipt";
 126 struct afinfo afinfo = {
 127         .libprefix      = "libxt_",
 128 };
 129
 130 void exit_error(enum exittype status, const char *msg, ...)
 131 {
 132 }
 133
 134 int main(int argc, char **argv) {
 135
 136         return 0;
 137 }
 138
 139 EOF
 140 $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1
 141
 142 if [ $? -eq 0 ]
 143 then
 144         echo "using old xtables with xt-internal.h"
 145         echo "TC_CONFIG_XT_OLD_H:=y" >>Config
 146 fi
 147 rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 148 }
 149
 150 check_ipt()
 151 {
 152         if ! grep TC_CONFIG_XT Config > /dev/null
 153         then
 154                 echo "using iptables"
 155         fi
 156 }
 157
 158 check_ipt_lib_dir()
 159 {
 160         IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables)
 161         if [ -n "$IPT_LIB_DIR" ]; then
 162                 echo $IPT_LIB_DIR
 163                 echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> Config
 164                 return
 165         fi
 166
 167         for dir in /lib /usr/lib /usr/local/lib
 168         do
 169                 for file in $dir/{xtables,iptables}/lib*t_*so ; do
 170                         if [ -f $file ]; then
 171                                 echo ${file%/*}
 172                                 echo "IPT_LIB_DIR:=${file%/*}" >> Config
 173                                 return
 174                         fi
 175                 done
 176         done
 177         echo "not found!"
 178 }
 179
 180 check_setns()
 181 {
 182 cat >$TMPDIR/setnstest.c <<EOF
 183 #include <sched.h>
 184 int main(int argc, char **argv)
 185 {
 186         (void)setns(0,0);
 187         return 0;
 188 }
 189 EOF
 190 $CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1
 191 if [ $? -eq 0 ]
 192 then
 193         echo "IP_CONFIG_SETNS:=y" >>Config
 194         echo "yes"
 195 else
 196         echo "no"
 197 fi
 198 rm -f $TMPDIR/setnstest.c $TMPDIR/setnstest
 199 }
 200
 201 check_ipset()
 202 {
 203 cat >$TMPDIR/ipsettest.c <<EOF
 204 #include <linux/netfilter/ipset/ip_set.h>
 205 #ifndef IP_SET_INVALID
 206 #define IPSET_DIM_MAX 3
 207 typedef unsigned short ip_set_id_t;
 208 #endif
 209 #include <linux/netfilter/xt_set.h>
 210
 211 struct xt_set_info info;
 212 #if IPSET_PROTOCOL == 6
 213 int main(void)
 214 {
 215         return IPSET_MAXNAMELEN;
 216 }
 217 #else
 218 #error unknown ipset version
 219 #endif
 220 EOF
 221
 222 if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1
 223 then
 224         echo "TC_CONFIG_IPSET:=y" >>Config
 225         echo "yes"
 226 else
 227         echo "no"
 228 fi
 229 rm -f $TMPDIR/ipsettest.c $TMPDIR/ipsettest
 230 }
 231
 232 echo "# Generated config based on" $INCLUDE >Config
 233 echo "PKG_CONFIG:=${PKG_CONFIG}" >>Config
 234 check_toolchain
 235
 236 echo "TC schedulers"
 237
 238 echo -n " ATM   "
 239 check_atm
 240
 241 echo -n " IPT   "
 242 check_xt
 243 check_xt_old
 244 check_xt_old_internal_h
 245 check_ipt
 246
 247 echo -n " IPSET  "
 248 check_ipset
 249
 250 echo -n "iptables modules directory: "
 251 check_ipt_lib_dir
 252
 253 echo -n "libc has setns: "
 254 check_setns