1 #! /bin/bash 2 # This is not an autoconf generated configure 3 # 4 INCLUDE=${1:-"$PWD/include"} 5 6 # Output file which is input to Makefile 7 CONFIG=config.mk 8 9 # Make a temp directory in build tree. 10 TMPDIR=$(mktemp -d config.XXXXXX) 11 trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM 12 13 check_prog() 14 { 15 echo -n "$2" 16 command -v $1 >/dev/null 2>&1 && (echo "$3:=y" >> $CONFIG; echo "yes") || (echo "no"; return 1) 17 } 18 19 check_docs() 20 { 21 if check_prog latex " latex: " HAVE_LATEX; then 22 check_prog pdflatex " pdflatex: " HAVE_PDFLATEX || echo " WARNING: no PDF docs can be built from LaTeX files" 23 check_prog sgml2latex " sgml2latex: " HAVE_SGML2LATEX || echo " WARNING: no LaTeX files can be build from SGML files" 24 else 25 echo " WARNING: no docs can be built from LaTeX files" 26 fi 27 28 check_prog sgml2html " sgml2html: " HAVE_SGML2HTML || echo " WARNING: no HTML docs can be built from SGML" 29 } 30 31 check_toolchain() 32 { 33 : ${PKG_CONFIG:=pkg-config} 34 : ${AR=ar} 35 : ${CC=gcc} 36 echo "PKG_CONFIG:=${PKG_CONFIG}" >>$CONFIG 37 echo "AR:=${AR}" >>$CONFIG 38 echo "CC:=${CC}" >>$CONFIG 39 } 40 41 check_atm() 42 { 43 cat >$TMPDIR/atmtest.c <<EOF 44 #include <atm.h> 45 int main(int argc, char **argv) { 46 struct atm_qos qos; 47 (void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0); 48 return 0; 49 } 50 EOF 51 52 $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1 53 if [ $? -eq 0 ] 54 then 55 echo "TC_CONFIG_ATM:=y" >>$CONFIG 56 echo yes 57 else 58 echo no 59 fi 60 rm -f $TMPDIR/atmtest.c $TMPDIR/atmtest 61 } 62 63 check_xtables() 64 { 65 if ! ${PKG_CONFIG} xtables --exists 66 then 67 echo "TC_CONFIG_NO_XT:=y" >>$CONFIG 68 fi 69 } 70 71 check_xt() 72 { 73 #check if we have xtables from iptables >= 1.4.5. 74 cat >$TMPDIR/ipttest.c <<EOF 75 #include <xtables.h> 76 #include <linux/netfilter.h> 77 static struct xtables_globals test_globals = { 78 .option_offset = 0, 79 .program_name = "tc-ipt", 80 .program_version = XTABLES_VERSION, 81 .orig_opts = NULL, 82 .opts = NULL, 83 .exit_err = NULL, 84 }; 85 86 int main(int argc, char **argv) 87 { 88 xtables_init_all(&test_globals, NFPROTO_IPV4); 89 return 0; 90 } 91 EOF 92 93 if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL \ 94 $(${PKG_CONFIG} xtables --cflags --libs) -ldl >/dev/null 2>&1 95 then 96 echo "TC_CONFIG_XT:=y" >>$CONFIG 97 echo "using xtables" 98 fi 99 rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest 100 } 101 102 check_xt_old() 103 { 104 # bail if previous XT checks has already succeded. 105 if grep -q TC_CONFIG_XT $CONFIG 106 then 107 return 108 fi 109 110 #check if we dont need our internal header .. 111 cat >$TMPDIR/ipttest.c <<EOF 112 #include <xtables.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 131 132 $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1 133 if [ $? -eq 0 ] 134 then 135 echo "TC_CONFIG_XT_OLD:=y" >>$CONFIG 136 echo "using old xtables (no need for xt-internal.h)" 137 fi 138 rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest 139 } 140 141 check_xt_old_internal_h() 142 { 143 # bail if previous XT checks has already succeded. 144 if grep -q TC_CONFIG_XT $CONFIG 145 then 146 return 147 fi 148 149 #check if we need our own internal.h 150 cat >$TMPDIR/ipttest.c <<EOF 151 #include <xtables.h> 152 #include "xt-internal.h" 153 char *lib_dir; 154 unsigned int global_option_offset = 0; 155 const char *program_version = XTABLES_VERSION; 156 const char *program_name = "tc-ipt"; 157 struct afinfo afinfo = { 158 .libprefix = "libxt_", 159 }; 160 161 void exit_error(enum exittype status, const char *msg, ...) 162 { 163 } 164 165 int main(int argc, char **argv) { 166 167 return 0; 168 } 169 170 EOF 171 $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1 172 173 if [ $? -eq 0 ] 174 then 175 echo "using old xtables with xt-internal.h" 176 echo "TC_CONFIG_XT_OLD_H:=y" >>$CONFIG 177 fi 178 rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest 179 } 180 181 check_ipt() 182 { 183 if ! grep TC_CONFIG_XT $CONFIG > /dev/null 184 then 185 echo "using iptables" 186 fi 187 } 188 189 check_ipt_lib_dir() 190 { 191 IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables) 192 if [ -n "$IPT_LIB_DIR" ]; then 193 echo $IPT_LIB_DIR 194 echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> $CONFIG 195 return 196 fi 197 198 for dir in /lib /usr/lib /usr/local/lib 199 do 200 for file in $dir/{xtables,iptables}/lib*t_*so ; do 201 if [ -f $file ]; then 202 echo ${file%/*} 203 echo "IPT_LIB_DIR:=${file%/*}" >> $CONFIG 204 return 205 fi 206 done 207 done 208 echo "not found!" 209 } 210 211 check_setns() 212 { 213 cat >$TMPDIR/setnstest.c <<EOF 214 #include <sched.h> 215 int main(int argc, char **argv) 216 { 217 (void)setns(0,0); 218 return 0; 219 } 220 EOF 221 $CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1 222 if [ $? -eq 0 ] 223 then 224 echo "IP_CONFIG_SETNS:=y" >>$CONFIG 225 echo "yes" 226 echo "CFLAGS += -DHAVE_SETNS" >>$CONFIG 227 else 228 echo "no" 229 fi 230 rm -f $TMPDIR/setnstest.c $TMPDIR/setnstest 231 } 232 233 check_ipset() 234 { 235 cat >$TMPDIR/ipsettest.c <<EOF 236 #include <linux/netfilter/ipset/ip_set.h> 237 #ifndef IP_SET_INVALID 238 #define IPSET_DIM_MAX 3 239 typedef unsigned short ip_set_id_t; 240 #endif 241 #include <linux/netfilter/xt_set.h> 242 243 struct xt_set_info info; 244 #if IPSET_PROTOCOL == 6 245 int main(void) 246 { 247 return IPSET_MAXNAMELEN; 248 } 249 #else 250 #error unknown ipset version 251 #endif 252 EOF 253 254 if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1 255 then 256 echo "TC_CONFIG_IPSET:=y" >>$CONFIG 257 echo "yes" 258 else 259 echo "no" 260 fi 261 rm -f $TMPDIR/ipsettest.c $TMPDIR/ipsettest 262 } 263 264 check_elf() 265 { 266 if ${PKG_CONFIG} libelf --exists 267 then 268 echo "HAVE_ELF:=y" >>$CONFIG 269 echo "yes" 270 271 echo 'CFLAGS += -DHAVE_ELF' `${PKG_CONFIG} libelf --cflags` >> $CONFIG 272 echo 'LDLIBS += ' `${PKG_CONFIG} libelf --libs` >>$CONFIG 273 else 274 echo "no" 275 fi 276 } 277 278 check_selinux() 279 # SELinux is a compile time option in the ss utility 280 { 281 if ${PKG_CONFIG} libselinux --exists 282 then 283 echo "HAVE_SELINUX:=y" >>$CONFIG 284 echo "yes" 285 286 echo 'LDLIBS +=' `${PKG_CONFIG} --libs libselinux` >>$CONFIG 287 echo 'CFLAGS += -DHAVE_SELINUX' `${PKG_CONFIG} --cflags libselinux` >>$CONFIG 288 else 289 echo "no" 290 fi 291 } 292 293 check_mnl() 294 { 295 if ${PKG_CONFIG} libmnl --exists 296 then 297 echo "HAVE_MNL:=y" >>$CONFIG 298 echo "yes" 299 300 echo 'CFLAGS += -DHAVE_LIBMNL' `${PKG_CONFIG} libmnl --cflags` >>$CONFIG 301 echo 'LDLIBS +=' `${PKG_CONFIG} libmnl --libs` >> $CONFIG 302 else 303 echo "no" 304 fi 305 } 306 307 check_berkeley_db() 308 { 309 cat >$TMPDIR/dbtest.c <<EOF 310 #include <fcntl.h> 311 #include <stdlib.h> 312 #include <db_185.h> 313 int main(int argc, char **argv) { 314 dbopen("/tmp/xxx_test_db.db", O_CREAT|O_RDWR, 0644, DB_HASH, NULL); 315 return 0; 316 } 317 EOF 318 $CC -I$INCLUDE -o $TMPDIR/dbtest $TMPDIR/dbtest.c -ldb >/dev/null 2>&1 319 if [ $? -eq 0 ] 320 then 321 echo "HAVE_BERKELEY_DB:=y" >>$CONFIG 322 echo "yes" 323 else 324 echo "no" 325 fi 326 rm -f $TMPDIR/dbtest.c $TMPDIR/dbtest 327 } 328 329 check_strlcpy() 330 { 331 cat >$TMPDIR/strtest.c <<EOF 332 #include <string.h> 333 int main(int argc, char **argv) { 334 char dst[10]; 335 strlcpy(dst, "test", sizeof(dst)); 336 return 0; 337 } 338 EOF 339 $CC -I$INCLUDE -o $TMPDIR/strtest $TMPDIR/strtest.c >/dev/null 2>&1 340 if [ $? -eq 0 ] 341 then 342 echo "no" 343 else 344 echo 'CFLAGS += -DNEED_STRLCPY' >>$CONFIG 345 echo "yes" 346 fi 347 rm -f $TMPDIR/strtest.c $TMPDIR/strtest 348 } 349 350 quiet_config() 351 { 352 cat <<EOF 353 # user can control verbosity similar to kernel builds (e.g., V=1) 354 ifeq ("\$(origin V)", "command line") 355 VERBOSE = \$(V) 356 endif 357 ifndef VERBOSE 358 VERBOSE = 0 359 endif 360 ifeq (\$(VERBOSE),1) 361 Q = 362 else 363 Q = @ 364 endif 365 366 ifeq (\$(VERBOSE), 0) 367 QUIET_CC = @echo ' CC '\$@; 368 QUIET_AR = @echo ' AR '\$@; 369 QUIET_LINK = @echo ' LINK '\$@; 370 QUIET_YACC = @echo ' YACC '\$@; 371 QUIET_LEX = @echo ' LEX '\$@; 372 endif 373 EOF 374 } 375 376 echo "# Generated config based on" $INCLUDE >$CONFIG 377 quiet_config >> $CONFIG 378 379 check_toolchain 380 381 echo "TC schedulers" 382 383 echo -n " ATM " 384 check_atm 385 386 check_xtables 387 if ! grep -q TC_CONFIG_NO_XT $CONFIG 388 then 389 echo -n " IPT " 390 check_xt 391 check_xt_old 392 check_xt_old_internal_h 393 check_ipt 394 395 echo -n " IPSET " 396 check_ipset 397 fi 398 399 echo 400 if ! grep -q TC_CONFIG_NO_XT $CONFIG 401 then 402 echo -n "iptables modules directory: " 403 check_ipt_lib_dir 404 fi 405 406 echo -n "libc has setns: " 407 check_setns 408 409 echo -n "SELinux support: " 410 check_selinux 411 412 echo -n "ELF support: " 413 check_elf 414 415 echo -n "libmnl support: " 416 check_mnl 417 418 echo -n "Berkeley DB: " 419 check_berkeley_db 420 421 echo -n "need for strlcpy: " 422 check_strlcpy 423 424 echo 425 echo -n "docs:" 426 check_docs 427 echo 428 429 echo >> $CONFIG 430 echo "%.o: %.c" >> $CONFIG 431 echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<' >> $CONFIG 432
