configure

   1 #! /bin/bash
   2 # This is not an autconf generated configure
   3 #
   4 INCLUDE=${1:-"$PWD/include"}
   5
   6 check_atm()
   7 {
   8 cat >/tmp/atmtest.c <<EOF
   9 #include <atm.h>
  10 int main(int argc, char **argv) {
  11         struct atm_qos qos;
  12         (void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0);
  13         return 0;
  14 }
  15 EOF
  16 gcc -I$INCLUDE -o /tmp/atmtest /tmp/atmtest.c -latm >/dev/null 2>&1
  17 if [ $? -eq 0 ]
  18 then
  19     echo "TC_CONFIG_ATM:=y" >>Config
  20     echo yes
  21 else
  22     echo no
  23 fi
  24 rm -f /tmp/atmtest.c /tmp/atmtest
  25 }
  26
  27 check_xt()
  28 {
  29 #check if we have xtables from iptables >= 1.4.5.
  30 cat >/tmp/ipttest.c <<EOF
  31 #include <xtables.h>
  32 #include <linux/netfilter.h>
  33 static struct xtables_globals test_globals = {
  34         .option_offset = 0,
  35         .program_name = "tc-ipt",
  36         .program_version = XTABLES_VERSION,
  37         .orig_opts = NULL,
  38         .opts = NULL,
  39         .exit_err = NULL,
  40 };
  41
  42 int main(int argc, char **argv)
  43 {
  44         xtables_init_all(&test_globals, NFPROTO_IPV4);
  45         return 0;
  46 }
  47
  48 EOF
  49
  50 if gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL $(pkg-config xtables --cflags --libs) -ldl >/dev/null 2>&1
  51 then
  52         echo "TC_CONFIG_XT:=y" >>Config
  53         echo "using xtables"
  54 fi
  55 rm -f /tmp/ipttest.c /tmp/ipttest
  56 }
  57
  58 check_xt_old()
  59 {
  60 # bail if previous XT checks has already succeded.
  61 if grep TC_CONFIG_XT Config > /dev/null
  62 then
  63         return
  64 fi
  65
  66 #check if we dont need our internal header ..
  67 cat >/tmp/ipttest.c <<EOF
  68 #include <xtables.h>
  69 char *lib_dir;
  70 unsigned int global_option_offset = 0;
  71 const char *program_version = XTABLES_VERSION;
  72 const char *program_name = "tc-ipt";
  73 struct afinfo afinfo = {
  74         .libprefix      = "libxt_",
  75 };
  76
  77 void exit_error(enum exittype status, const char *msg, ...)
  78 {
  79 }
  80
  81 int main(int argc, char **argv) {
  82
  83         return 0;
  84 }
  85
  86 EOF
  87 gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
  88
  89 if [ $? -eq 0 ]
  90 then
  91         echo "TC_CONFIG_XT_OLD:=y" >>Config
  92         echo "using old xtables (no need for xt-internal.h)"
  93 fi
  94 rm -f /tmp/ipttest.c /tmp/ipttest
  95 }
  96
  97 check_xt_old_internal_h()
  98 {
  99 # bail if previous XT checks has already succeded.
 100 if grep TC_CONFIG_XT Config > /dev/null
 101 then
 102         return
 103 fi
 104
 105 #check if we need our own internal.h
 106 cat >/tmp/ipttest.c <<EOF
 107 #include <xtables.h>
 108 #include "xt-internal.h"
 109 char *lib_dir;
 110 unsigned int global_option_offset = 0;
 111 const char *program_version = XTABLES_VERSION;
 112 const char *program_name = "tc-ipt";
 113 struct afinfo afinfo = {
 114         .libprefix      = "libxt_",
 115 };
 116
 117 void exit_error(enum exittype status, const char *msg, ...)
 118 {
 119 }
 120
 121 int main(int argc, char **argv) {
 122
 123         return 0;
 124 }
 125
 126 EOF
 127 gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
 128
 129 if [ $? -eq 0 ]
 130 then
 131         echo "using old xtables with xt-internal.h"
 132         echo "TC_CONFIG_XT_OLD_H:=y" >>Config
 133 fi
 134 rm -f /tmp/ipttest.c /tmp/ipttest
 135 }
 136
 137 check_ipt()
 138 {
 139         if ! grep TC_CONFIG_XT Config > /dev/null
 140         then
 141                 echo "using iptables"
 142         fi
 143 }
 144
 145 check_ipt_lib_dir()
 146 {
 147         IPT_LIB_DIR=""
 148         for dir in /lib /usr/lib /usr/local/lib
 149         do
 150                 for file in $dir/{xtables,iptables}/lib*t_*so ; do
 151                         if [ -f $file ]; then
 152                                 echo ${file%/*}
 153                                 echo "IPT_LIB_DIR:=${file%/*}" >> Config
 154                                 return
 155                         fi
 156                 done
 157         done
 158         echo "not found!"
 159 }
 160
 161 check_setns()
 162 {
 163 cat >/tmp/setnstest.c <<EOF
 164 #include <sched.h>
 165 int main(int argc, char **argv)
 166 {
 167         (void)setns(0,0);
 168         return 0;
 169 }
 170 EOF
 171 gcc -I$INCLUDE -o /tmp/setnstest /tmp/setnstest.c >/dev/null 2>&1
 172 if [ $? -eq 0 ]
 173 then
 174         echo "IP_CONFIG_SETNS:=y" >>Config
 175         echo "yes"
 176 else
 177         echo "no"
 178 fi
 179 rm -f /tmp/setnstest.c /tmp/setnstest
 180 }
 181
 182 echo "# Generated config based on" $INCLUDE >Config
 183
 184 echo "TC schedulers"
 185
 186 echo -n " ATM   "
 187 check_atm
 188
 189 echo -n " IPT   "
 190 check_xt
 191 check_xt_old
 192 check_xt_old_internal_h
 193 check_ipt
 194
 195 echo -n "iptables modules directory: "
 196 check_ipt_lib_dir
 197
 198 echo -n "libc has setns: "
 199 check_setns