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