]>
Commit | Line | Data |
---|---|---|
1 | #! /bin/bash | |
2 | # SPDX-License-Identifier: GPL-2.0 | |
3 | # This is not an autoconf generated configure | |
4 | # | |
5 | INCLUDE=${1:-"$PWD/include"} | |
6 | ||
7 | # Output file which is input to Makefile | |
8 | CONFIG=config.mk | |
9 | ||
10 | # Make a temp directory in build tree. | |
11 | TMPDIR=$(mktemp -d config.XXXXXX) | |
12 | trap 'status=$?; rm -rf $TMPDIR; exit $status' EXIT HUP INT QUIT TERM | |
13 | ||
14 | check_prog() | |
15 | { | |
16 | echo -n "$2" | |
17 | command -v $1 >/dev/null 2>&1 && (echo "$3:=y" >> $CONFIG; echo "yes") || (echo "no"; return 1) | |
18 | } | |
19 | ||
20 | check_toolchain() | |
21 | { | |
22 | : ${PKG_CONFIG:=pkg-config} | |
23 | : ${AR=ar} | |
24 | : ${CC=gcc} | |
25 | echo "PKG_CONFIG:=${PKG_CONFIG}" >>$CONFIG | |
26 | echo "AR:=${AR}" >>$CONFIG | |
27 | echo "CC:=${CC}" >>$CONFIG | |
28 | } | |
29 | ||
30 | check_atm() | |
31 | { | |
32 | cat >$TMPDIR/atmtest.c <<EOF | |
33 | #include <atm.h> | |
34 | int main(int argc, char **argv) { | |
35 | struct atm_qos qos; | |
36 | (void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0); | |
37 | return 0; | |
38 | } | |
39 | EOF | |
40 | ||
41 | $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1 | |
42 | if [ $? -eq 0 ] | |
43 | then | |
44 | echo "TC_CONFIG_ATM:=y" >>$CONFIG | |
45 | echo yes | |
46 | else | |
47 | echo no | |
48 | fi | |
49 | rm -f $TMPDIR/atmtest.c $TMPDIR/atmtest | |
50 | } | |
51 | ||
52 | check_xtables() | |
53 | { | |
54 | if ! ${PKG_CONFIG} xtables --exists | |
55 | then | |
56 | echo "TC_CONFIG_NO_XT:=y" >>$CONFIG | |
57 | fi | |
58 | } | |
59 | ||
60 | check_xt() | |
61 | { | |
62 | #check if we have xtables from iptables >= 1.4.5. | |
63 | cat >$TMPDIR/ipttest.c <<EOF | |
64 | #include <xtables.h> | |
65 | #include <linux/netfilter.h> | |
66 | static struct xtables_globals test_globals = { | |
67 | .option_offset = 0, | |
68 | .program_name = "tc-ipt", | |
69 | .program_version = XTABLES_VERSION, | |
70 | .orig_opts = NULL, | |
71 | .opts = NULL, | |
72 | .exit_err = NULL, | |
73 | }; | |
74 | ||
75 | int main(int argc, char **argv) | |
76 | { | |
77 | xtables_init_all(&test_globals, NFPROTO_IPV4); | |
78 | return 0; | |
79 | } | |
80 | EOF | |
81 | ||
82 | if $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL \ | |
83 | $(${PKG_CONFIG} xtables --cflags --libs) -ldl >/dev/null 2>&1 | |
84 | then | |
85 | echo "TC_CONFIG_XT:=y" >>$CONFIG | |
86 | echo "using xtables" | |
87 | fi | |
88 | rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest | |
89 | } | |
90 | ||
91 | check_xt_old() | |
92 | { | |
93 | # bail if previous XT checks has already succeded. | |
94 | if grep -q TC_CONFIG_XT $CONFIG | |
95 | then | |
96 | return | |
97 | fi | |
98 | ||
99 | #check if we dont need our internal header .. | |
100 | cat >$TMPDIR/ipttest.c <<EOF | |
101 | #include <xtables.h> | |
102 | char *lib_dir; | |
103 | unsigned int global_option_offset = 0; | |
104 | const char *program_version = XTABLES_VERSION; | |
105 | const char *program_name = "tc-ipt"; | |
106 | struct afinfo afinfo = { | |
107 | .libprefix = "libxt_", | |
108 | }; | |
109 | ||
110 | void exit_error(enum exittype status, const char *msg, ...) | |
111 | { | |
112 | } | |
113 | ||
114 | int main(int argc, char **argv) { | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
119 | EOF | |
120 | ||
121 | $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1 | |
122 | if [ $? -eq 0 ] | |
123 | then | |
124 | echo "TC_CONFIG_XT_OLD:=y" >>$CONFIG | |
125 | echo "using old xtables (no need for xt-internal.h)" | |
126 | fi | |
127 | rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest | |
128 | } | |
129 | ||
130 | check_xt_old_internal_h() | |
131 | { | |
132 | # bail if previous XT checks has already succeded. | |
133 | if grep -q TC_CONFIG_XT $CONFIG | |
134 | then | |
135 | return | |
136 | fi | |
137 | ||
138 | #check if we need our own internal.h | |
139 | cat >$TMPDIR/ipttest.c <<EOF | |
140 | #include <xtables.h> | |
141 | #include "xt-internal.h" | |
142 | char *lib_dir; | |
143 | unsigned int global_option_offset = 0; | |
144 | const char *program_version = XTABLES_VERSION; | |
145 | const char *program_name = "tc-ipt"; | |
146 | struct afinfo afinfo = { | |
147 | .libprefix = "libxt_", | |
148 | }; | |
149 | ||
150 | void exit_error(enum exittype status, const char *msg, ...) | |
151 | { | |
152 | } | |
153 | ||
154 | int main(int argc, char **argv) { | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
159 | EOF | |
160 | $CC -I$INCLUDE $IPTC -o $TMPDIR/ipttest $TMPDIR/ipttest.c $IPTL -ldl >/dev/null 2>&1 | |
161 | ||
162 | if [ $? -eq 0 ] | |
163 | then | |
164 | echo "using old xtables with xt-internal.h" | |
165 | echo "TC_CONFIG_XT_OLD_H:=y" >>$CONFIG | |
166 | fi | |
167 | rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest | |
168 | } | |
169 | ||
170 | check_ipt() | |
171 | { | |
172 | if ! grep TC_CONFIG_XT $CONFIG > /dev/null | |
173 | then | |
174 | echo "using iptables" | |
175 | fi | |
176 | } | |
177 | ||
178 | check_ipt_lib_dir() | |
179 | { | |
180 | IPT_LIB_DIR=$(${PKG_CONFIG} --variable=xtlibdir xtables) | |
181 | if [ -n "$IPT_LIB_DIR" ]; then | |
182 | echo $IPT_LIB_DIR | |
183 | echo "IPT_LIB_DIR:=$IPT_LIB_DIR" >> $CONFIG | |
184 | return | |
185 | fi | |
186 | ||
187 | for dir in /lib /usr/lib /usr/local/lib | |
188 | do | |
189 | for file in $dir/{xtables,iptables}/lib*t_*so ; do | |
190 | if [ -f $file ]; then | |
191 | echo ${file%/*} | |
192 | echo "IPT_LIB_DIR:=${file%/*}" >> $CONFIG | |
193 | return | |
194 | fi | |
195 | done | |
196 | done | |
197 | echo "not found!" | |
198 | } | |
199 | ||
200 | check_setns() | |
201 | { | |
202 | cat >$TMPDIR/setnstest.c <<EOF | |
203 | #include <sched.h> | |
204 | int main(int argc, char **argv) | |
205 | { | |
206 | (void)setns(0,0); | |
207 | return 0; | |
208 | } | |
209 | EOF | |
210 | $CC -I$INCLUDE -o $TMPDIR/setnstest $TMPDIR/setnstest.c >/dev/null 2>&1 | |
211 | if [ $? -eq 0 ] | |
212 | then | |
213 | echo "IP_CONFIG_SETNS:=y" >>$CONFIG | |
214 | echo "yes" | |
215 | echo "CFLAGS += -DHAVE_SETNS" >>$CONFIG | |
216 | else | |
217 | echo "no" | |
218 | fi | |
219 | rm -f $TMPDIR/setnstest.c $TMPDIR/setnstest | |
220 | } | |
221 | ||
222 | check_ipset() | |
223 | { | |
224 | cat >$TMPDIR/ipsettest.c <<EOF | |
225 | #include <linux/netfilter/ipset/ip_set.h> | |
226 | #ifndef IP_SET_INVALID | |
227 | #define IPSET_DIM_MAX 3 | |
228 | typedef unsigned short ip_set_id_t; | |
229 | #endif | |
230 | #include <linux/netfilter/xt_set.h> | |
231 | ||
232 | struct xt_set_info info; | |
233 | #if IPSET_PROTOCOL == 6 | |
234 | int main(void) | |
235 | { | |
236 | return IPSET_MAXNAMELEN; | |
237 | } | |
238 | #else | |
239 | #error unknown ipset version | |
240 | #endif | |
241 | EOF | |
242 | ||
243 | if $CC -I$INCLUDE -o $TMPDIR/ipsettest $TMPDIR/ipsettest.c >/dev/null 2>&1 | |
244 | then | |
245 | echo "TC_CONFIG_IPSET:=y" >>$CONFIG | |
246 | echo "yes" | |
247 | else | |
248 | echo "no" | |
249 | fi | |
250 | rm -f $TMPDIR/ipsettest.c $TMPDIR/ipsettest | |
251 | } | |
252 | ||
253 | check_elf() | |
254 | { | |
255 | if ${PKG_CONFIG} libelf --exists | |
256 | then | |
257 | echo "HAVE_ELF:=y" >>$CONFIG | |
258 | echo "yes" | |
259 | ||
260 | echo 'CFLAGS += -DHAVE_ELF' `${PKG_CONFIG} libelf --cflags` >> $CONFIG | |
261 | echo 'LDLIBS += ' `${PKG_CONFIG} libelf --libs` >>$CONFIG | |
262 | else | |
263 | echo "no" | |
264 | fi | |
265 | } | |
266 | ||
267 | check_selinux() | |
268 | # SELinux is a compile time option in the ss utility | |
269 | { | |
270 | if ${PKG_CONFIG} libselinux --exists | |
271 | then | |
272 | echo "HAVE_SELINUX:=y" >>$CONFIG | |
273 | echo "yes" | |
274 | ||
275 | echo 'LDLIBS +=' `${PKG_CONFIG} --libs libselinux` >>$CONFIG | |
276 | echo 'CFLAGS += -DHAVE_SELINUX' `${PKG_CONFIG} --cflags libselinux` >>$CONFIG | |
277 | else | |
278 | echo "no" | |
279 | fi | |
280 | } | |
281 | ||
282 | check_mnl() | |
283 | { | |
284 | if ${PKG_CONFIG} libmnl --exists | |
285 | then | |
286 | echo "HAVE_MNL:=y" >>$CONFIG | |
287 | echo "yes" | |
288 | ||
289 | echo 'CFLAGS += -DHAVE_LIBMNL' `${PKG_CONFIG} libmnl --cflags` >>$CONFIG | |
290 | echo 'LDLIBS +=' `${PKG_CONFIG} libmnl --libs` >> $CONFIG | |
291 | else | |
292 | echo "no" | |
293 | fi | |
294 | } | |
295 | ||
296 | check_berkeley_db() | |
297 | { | |
298 | cat >$TMPDIR/dbtest.c <<EOF | |
299 | #include <fcntl.h> | |
300 | #include <stdlib.h> | |
301 | #include <db_185.h> | |
302 | int main(int argc, char **argv) { | |
303 | dbopen("/tmp/xxx_test_db.db", O_CREAT|O_RDWR, 0644, DB_HASH, NULL); | |
304 | return 0; | |
305 | } | |
306 | EOF | |
307 | $CC -I$INCLUDE -o $TMPDIR/dbtest $TMPDIR/dbtest.c -ldb >/dev/null 2>&1 | |
308 | if [ $? -eq 0 ] | |
309 | then | |
310 | echo "HAVE_BERKELEY_DB:=y" >>$CONFIG | |
311 | echo "yes" | |
312 | else | |
313 | echo "no" | |
314 | fi | |
315 | rm -f $TMPDIR/dbtest.c $TMPDIR/dbtest | |
316 | } | |
317 | ||
318 | check_strlcpy() | |
319 | { | |
320 | cat >$TMPDIR/strtest.c <<EOF | |
321 | #include <string.h> | |
322 | int main(int argc, char **argv) { | |
323 | char dst[10]; | |
324 | strlcpy(dst, "test", sizeof(dst)); | |
325 | return 0; | |
326 | } | |
327 | EOF | |
328 | $CC -I$INCLUDE -o $TMPDIR/strtest $TMPDIR/strtest.c >/dev/null 2>&1 | |
329 | if [ $? -eq 0 ] | |
330 | then | |
331 | echo "no" | |
332 | else | |
333 | echo 'CFLAGS += -DNEED_STRLCPY' >>$CONFIG | |
334 | echo "yes" | |
335 | fi | |
336 | rm -f $TMPDIR/strtest.c $TMPDIR/strtest | |
337 | } | |
338 | ||
339 | check_cap() | |
340 | { | |
341 | if ${PKG_CONFIG} libcap --exists | |
342 | then | |
343 | echo "HAVE_CAP:=y" >>$CONFIG | |
344 | echo "yes" | |
345 | ||
346 | echo 'CFLAGS += -DHAVE_LIBCAP' `${PKG_CONFIG} libcap --cflags` >>$CONFIG | |
347 | echo 'LDLIBS +=' `${PKG_CONFIG} libcap --libs` >> $CONFIG | |
348 | else | |
349 | echo "no" | |
350 | fi | |
351 | } | |
352 | ||
353 | quiet_config() | |
354 | { | |
355 | cat <<EOF | |
356 | # user can control verbosity similar to kernel builds (e.g., V=1) | |
357 | ifeq ("\$(origin V)", "command line") | |
358 | VERBOSE = \$(V) | |
359 | endif | |
360 | ifndef VERBOSE | |
361 | VERBOSE = 0 | |
362 | endif | |
363 | ifeq (\$(VERBOSE),1) | |
364 | Q = | |
365 | else | |
366 | Q = @ | |
367 | endif | |
368 | ||
369 | ifeq (\$(VERBOSE), 0) | |
370 | QUIET_CC = @echo ' CC '\$@; | |
371 | QUIET_AR = @echo ' AR '\$@; | |
372 | QUIET_LINK = @echo ' LINK '\$@; | |
373 | QUIET_YACC = @echo ' YACC '\$@; | |
374 | QUIET_LEX = @echo ' LEX '\$@; | |
375 | endif | |
376 | EOF | |
377 | } | |
378 | ||
379 | echo "# Generated config based on" $INCLUDE >$CONFIG | |
380 | quiet_config >> $CONFIG | |
381 | ||
382 | check_toolchain | |
383 | ||
384 | echo "TC schedulers" | |
385 | ||
386 | echo -n " ATM " | |
387 | check_atm | |
388 | ||
389 | check_xtables | |
390 | if ! grep -q TC_CONFIG_NO_XT $CONFIG | |
391 | then | |
392 | echo -n " IPT " | |
393 | check_xt | |
394 | check_xt_old | |
395 | check_xt_old_internal_h | |
396 | check_ipt | |
397 | ||
398 | echo -n " IPSET " | |
399 | check_ipset | |
400 | fi | |
401 | ||
402 | echo | |
403 | if ! grep -q TC_CONFIG_NO_XT $CONFIG | |
404 | then | |
405 | echo -n "iptables modules directory: " | |
406 | check_ipt_lib_dir | |
407 | fi | |
408 | ||
409 | echo -n "libc has setns: " | |
410 | check_setns | |
411 | ||
412 | echo -n "SELinux support: " | |
413 | check_selinux | |
414 | ||
415 | echo -n "ELF support: " | |
416 | check_elf | |
417 | ||
418 | echo -n "libmnl support: " | |
419 | check_mnl | |
420 | ||
421 | echo -n "Berkeley DB: " | |
422 | check_berkeley_db | |
423 | ||
424 | echo -n "need for strlcpy: " | |
425 | check_strlcpy | |
426 | ||
427 | echo -n "libcap support: " | |
428 | check_cap | |
429 | ||
430 | echo >> $CONFIG | |
431 | echo "%.o: %.c" >> $CONFIG | |
432 | echo ' $(QUIET_CC)$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<' >> $CONFIG |