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iptables: reduce binary size

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* drop unused lenient restore patch
 * instead of statically linking core extensions, build shared libraries
   for reuse in fw3
 * strip outdated match revisions and aliases to trim down library size

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 45758
This commit is contained in:
Jo-Philipp Wich 2015-05-26 09:16:50 +00:00
parent ecb14f4a5d
commit 1c00b6bc7f
4 changed files with 195 additions and 176 deletions
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13
package/network/utils/iptables/Makefile
View File

@ -392,7 +392,7 @@ define Package/libiptc
$(call Package/iptables/Default)
SECTION:=libs
CATEGORY:=Libraries
DEPENDS:=+libip4tc +libip6tc
DEPENDS:=+libip4tc +libip6tc +libxtables
TITLE:=IPv4/IPv6 firewall - shared libiptc library (compatibility stub)
endef
@ -401,6 +401,7 @@ $(call Package/iptables/Default)
SECTION:=libs
CATEGORY:=Libraries
TITLE:=IPv4 firewall - shared libiptc library
DEPENDS:=+libxtables
endef
define Package/libip6tc
@ -408,6 +409,7 @@ $(call Package/iptables/Default)
SECTION:=libs
CATEGORY:=Libraries
TITLE:=IPv6 firewall - shared libiptc library
DEPENDS:=+libxtables
endef
define Package/libxtables
@ -425,7 +427,8 @@ TARGET_CPPFLAGS := \
TARGET_CFLAGS += \
-I$(PKG_BUILD_DIR)/include \
-I$(LINUX_DIR)/user_headers/include \
-ffunction-sections -fdata-sections
-ffunction-sections -fdata-sections \
-DNO_LEGACY
TARGET_LDFLAGS += \
-Wl,--gc-sections
@ -466,8 +469,7 @@ define Build/InstallDev
$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libip*tc.pc $(1)/usr/lib/pkgconfig/
# XXX: needed by firewall3
$(INSTALL_DIR) $(1)/usr/lib/iptables
$(CP) $(PKG_BUILD_DIR)/extensions/libext*.a $(1)/usr/lib/iptables/
$(CP) $(PKG_BUILD_DIR)/extensions/libiptext*.so $(1)/usr/lib/
endef
define Package/iptables/install
@ -490,16 +492,19 @@ endef
define Package/libip4tc/install
$(INSTALL_DIR) $(1)/usr/lib
$(CP) $(PKG_INSTALL_DIR)/usr/lib/libip4tc.so* $(1)/usr/lib/
$(CP) $(PKG_BUILD_DIR)/extensions/libiptext4.so $(1)/usr/lib/
endef
define Package/libip6tc/install
$(INSTALL_DIR) $(1)/usr/lib
$(CP) $(PKG_INSTALL_DIR)/usr/lib/libip6tc.so* $(1)/usr/lib/
$(CP) $(PKG_BUILD_DIR)/extensions/libiptext6.so $(1)/usr/lib/
endef
define Package/libxtables/install
$(INSTALL_DIR) $(1)/usr/lib
$(CP) $(PKG_INSTALL_DIR)/usr/lib/libxtables.so* $(1)/usr/lib/
$(CP) $(PKG_BUILD_DIR)/extensions/libiptext.so $(1)/usr/lib/
endef
define BuildPlugin

172
package/network/utils/iptables/patches/400-lenient-restore.patch
View File

@ -1,172 +0,0 @@
--- a/iptables/ip6tables-restore.c
+++ b/iptables/ip6tables-restore.c
@@ -14,6 +14,8 @@
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
+#include <setjmp.h>
#include "ip6tables.h"
#include "xtables.h"
#include "libiptc/libip6tc.h"
@@ -25,6 +27,7 @@
#define DEBUGP(x, args...)
#endif
+static jmp_buf jmp;
static int binary = 0, counters = 0, verbose = 0, noflush = 0;
/* Keeping track of external matches and targets. */
@@ -35,6 +38,7 @@ static const struct option options[] = {
{.name = "test", .has_arg = false, .val = 't'},
{.name = "help", .has_arg = false, .val = 'h'},
{.name = "noflush", .has_arg = false, .val = 'n'},
+ {.name = "lenient", .has_arg = false, .val = 'l'},
{.name = "modprobe", .has_arg = true, .val = 'M'},
{.name = "table", .has_arg = true, .val = 'T'},
{NULL},
@@ -51,6 +55,7 @@ static void print_usage(const char *name
" [ --test ]\n"
" [ --help ]\n"
" [ --noflush ]\n"
+ " [ --lenient ]\n"
" [ --modprobe=<command>]\n", name);
exit(1);
@@ -114,6 +119,17 @@ static void free_argv(void) {
free(newargv[i]);
}
+static void catch_exit_error(enum xtables_exittype status, const char *msg, ...)
+{
+ va_list args;
+ fprintf(stderr, "line %d: ", line);
+ va_start(args, msg);
+ vfprintf(stderr, msg, args);
+ va_end(args);
+ fprintf(stderr, "\n");
+ longjmp(jmp, status);
+}
+
static void add_param_to_argv(char *parsestart)
{
int quote_open = 0, escaped = 0, param_len = 0;
@@ -204,7 +220,7 @@ int ip6tables_restore_main(int argc, cha
init_extensions6();
#endif
- while ((c = getopt_long(argc, argv, "bcvthnM:T:", options, NULL)) != -1) {
+ while ((c = getopt_long(argc, argv, "bcvthnlM:T:", options, NULL)) != -1) {
switch (c) {
case 'b':
binary = 1;
@@ -225,6 +241,9 @@ int ip6tables_restore_main(int argc, cha
case 'n':
noflush = 1;
break;
+ case 'l':
+ ip6tables_globals.exit_err = catch_exit_error;
+ break;
case 'M':
xtables_modprobe_program = optarg;
break;
@@ -437,8 +456,11 @@ int ip6tables_restore_main(int argc, cha
for (a = 0; a < newargc; a++)
DEBUGP("argv[%u]: %s\n", a, newargv[a]);
- ret = do_command6(newargc, newargv,
- &newargv[2], &handle, true);
+ if (!setjmp(jmp))
+ ret = do_command6(newargc, newargv,
+ &newargv[2], &handle, true);
+ else
+ ret = 1;
free_argv();
fflush(stdout);
--- a/iptables/iptables-restore.c
+++ b/iptables/iptables-restore.c
@@ -11,6 +11,8 @@
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
+#include <setjmp.h>
#include "iptables.h"
#include "xtables.h"
#include "libiptc/libiptc.h"
@@ -22,6 +24,7 @@
#define DEBUGP(x, args...)
#endif
+static jmp_buf jmp;
static int binary = 0, counters = 0, verbose = 0, noflush = 0;
/* Keeping track of external matches and targets. */
@@ -32,6 +35,7 @@ static const struct option options[] = {
{.name = "test", .has_arg = false, .val = 't'},
{.name = "help", .has_arg = false, .val = 'h'},
{.name = "noflush", .has_arg = false, .val = 'n'},
+ {.name = "lenient", .has_arg = false, .val = 'l'},
{.name = "modprobe", .has_arg = true, .val = 'M'},
{.name = "table", .has_arg = true, .val = 'T'},
{NULL},
@@ -50,6 +54,7 @@ static void print_usage(const char *name
" [ --test ]\n"
" [ --help ]\n"
" [ --noflush ]\n"
+ " [ --lenient ]\n"
" [ --table=<TABLE> ]\n"
" [ --modprobe=<command>]\n", name);
@@ -113,6 +118,17 @@ static void free_argv(void) {
free(newargv[i]);
}
+static void catch_exit_error(enum xtables_exittype status, const char *msg, ...)
+{
+ va_list args;
+ fprintf(stderr, "line %d: ", line);
+ va_start(args, msg);
+ vfprintf(stderr, msg, args);
+ va_end(args);
+ fprintf(stderr, "\n");
+ longjmp(jmp, status);
+}
+
static void add_param_to_argv(char *parsestart)
{
int quote_open = 0, escaped = 0, param_len = 0;
@@ -204,7 +220,7 @@ iptables_restore_main(int argc, char *ar
init_extensions4();
#endif
- while ((c = getopt_long(argc, argv, "bcvthnM:T:", options, NULL)) != -1) {
+ while ((c = getopt_long(argc, argv, "bcvthnlM:T:", options, NULL)) != -1) {
switch (c) {
case 'b':
binary = 1;
@@ -225,6 +241,9 @@ iptables_restore_main(int argc, char *ar
case 'n':
noflush = 1;
break;
+ case 'l':
+ iptables_globals.exit_err = catch_exit_error;
+ break;
case 'M':
xtables_modprobe_program = optarg;
break;
@@ -437,8 +456,11 @@ iptables_restore_main(int argc, char *ar
for (a = 0; a < newargc; a++)
DEBUGP("argv[%u]: %s\n", a, newargv[a]);
- ret = do_command4(newargc, newargv,
- &newargv[2], &handle, true);
+ if (!setjmp(jmp))
+ ret = do_command4(newargc, newargv,
+ &newargv[2], &handle, true);
+ else
+ ret = 1;
free_argv();
fflush(stdout);

78
package/network/utils/iptables/patches/600-shared-libext.patch Normal file
View File

@ -0,0 +1,78 @@
Index: iptables-1.4.21/extensions/GNUmakefile.in
===================================================================
--- iptables-1.4.21.orig/extensions/GNUmakefile.in
+++ iptables-1.4.21/extensions/GNUmakefile.in
@@ -71,7 +71,7 @@ pf6_solibs := $(patsubst %,libip6t_%.
#
# Building blocks
#
-targets := libext.a libext4.a libext6.a matches.man targets.man
+targets := libiptext.so libiptext4.so libiptext6.so matches.man targets.man
targets_install :=
libext_objs := ${pfx_objs}
libext4_objs := ${pf4_objs}
@@ -96,7 +96,7 @@ clean:
distclean: clean
init%.o: init%.c
- ${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -D_INIT=$*_init ${CFLAGS} -o $@ -c $<;
+ ${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -D_INIT=$*_init -DPIC -fPIC ${CFLAGS} -o $@ -c $<;
-include .*.d
@@ -130,16 +130,16 @@ xt_statistic_LIBADD = -lm
# handling code in the Makefiles.
#
lib%.o: ${srcdir}/lib%.c
- ${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -DNO_SHARED_LIBS=1 -D_INIT=lib$*_init ${CFLAGS} -o $@ -c $<;
+ ${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -DNO_SHARED_LIBS=1 -D_INIT=lib$*_init -DPIC -fPIC ${CFLAGS} -o $@ -c $<;
-libext.a: initext.o ${libext_objs}
- ${AM_VERBOSE_AR} ${AR} crs $@ $^;
+libiptext.so: initext.o ${libext_objs}
+ ${AM_VERBOSE_CCLD} ${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $^ -L../libxtables/.libs -lxtables ${$*_LIBADD};
-libext4.a: initext4.o ${libext4_objs}
- ${AM_VERBOSE_AR} ${AR} crs $@ $^;
+libiptext4.so: initext4.o ${libext4_objs}
+ ${AM_VERBOSE_CCLD} ${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $^ -L../libxtables/.libs -lxtables ${$*_LIBADD};
-libext6.a: initext6.o ${libext6_objs}
- ${AM_VERBOSE_AR} ${AR} crs $@ $^;
+libiptext6.so: initext6.o ${libext6_objs}
+ ${AM_VERBOSE_CCLD} ${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $^ -L../libxtables/.libs -lxtables ${$*_LIBADD};
initext_func := $(addprefix xt_,${pfx_build_static})
initext4_func := $(addprefix ipt_,${pf4_build_static})
Index: iptables-1.4.21/iptables/Makefile.am
===================================================================
--- iptables-1.4.21.orig/iptables/Makefile.am
+++ iptables-1.4.21/iptables/Makefile.am
@@ -5,7 +5,8 @@ AM_CPPFLAGS = ${regular_CPPFLAGS} -
xtables_multi_SOURCES = xtables-multi.c iptables-xml.c
xtables_multi_CFLAGS = ${AM_CFLAGS}
-xtables_multi_LDADD = ../extensions/libext.a
+xtables_multi_LDADD =
+xtables_multi_LDFLAGS = -L../extensions/ -liptext
if ENABLE_STATIC
xtables_multi_CFLAGS += -DALL_INCLUSIVE
endif
@@ -13,13 +14,15 @@ if ENABLE_IPV4
xtables_multi_SOURCES += iptables-save.c iptables-restore.c \
iptables-standalone.c iptables.c
xtables_multi_CFLAGS += -DENABLE_IPV4
-xtables_multi_LDADD += ../libiptc/libip4tc.la ../extensions/libext4.a
+xtables_multi_LDADD += ../libiptc/libip4tc.la
+xtables_multi_LDFLAGS += -liptext4
endif
if ENABLE_IPV6
xtables_multi_SOURCES += ip6tables-save.c ip6tables-restore.c \
ip6tables-standalone.c ip6tables.c
xtables_multi_CFLAGS += -DENABLE_IPV6
-xtables_multi_LDADD += ../libiptc/libip6tc.la ../extensions/libext6.a
+xtables_multi_LDADD += ../libiptc/libip6tc.la
+xtables_multi_LDFLAGS += -liptext6
endif
xtables_multi_SOURCES += xshared.c
xtables_multi_LDADD += ../libxtables/libxtables.la -lm

108
package/network/utils/iptables/patches/700-disable-legacy-revisions.patch Normal file
View File

@ -0,0 +1,108 @@
Index: iptables-1.4.21/extensions/libxt_conntrack.c
===================================================================
--- iptables-1.4.21.orig/extensions/libxt_conntrack.c
+++ iptables-1.4.21/extensions/libxt_conntrack.c
@@ -1157,6 +1157,7 @@ static void state_save(const void *ip, c
}
static struct xtables_match conntrack_mt_reg[] = {
+#ifndef NO_LEGACY
{
.version = XTABLES_VERSION,
.name = "conntrack",
@@ -1232,6 +1233,7 @@ static struct xtables_match conntrack_mt
.alias = conntrack_print_name_alias,
.x6_options = conntrack2_mt_opts,
},
+#endif
{
.version = XTABLES_VERSION,
.name = "conntrack",
@@ -1262,6 +1264,7 @@ static struct xtables_match conntrack_mt
.alias = conntrack_print_name_alias,
.x6_options = conntrack3_mt_opts,
},
+#ifndef NO_LEGACY
{
.family = NFPROTO_UNSPEC,
.name = "state",
@@ -1292,6 +1295,7 @@ static struct xtables_match conntrack_mt
.x6_parse = state_ct23_parse,
.x6_options = state_opts,
},
+#endif
{
.family = NFPROTO_UNSPEC,
.name = "state",
@@ -1307,6 +1311,7 @@ static struct xtables_match conntrack_mt
.x6_parse = state_ct23_parse,
.x6_options = state_opts,
},
+#ifndef NO_LEGACY
{
.family = NFPROTO_UNSPEC,
.name = "state",
@@ -1320,6 +1325,7 @@ static struct xtables_match conntrack_mt
.x6_parse = state_parse,
.x6_options = state_opts,
},
+#endif
};
void _init(void)
Index: iptables-1.4.21/extensions/libxt_CT.c
===================================================================
--- iptables-1.4.21.orig/extensions/libxt_CT.c
+++ iptables-1.4.21/extensions/libxt_CT.c
@@ -290,6 +290,7 @@ static void notrack_ct2_tg_init(struct x
}
static struct xtables_target ct_target_reg[] = {
+#ifndef NO_LEGACY
{
.family = NFPROTO_UNSPEC,
.name = "CT",
@@ -315,6 +316,7 @@ static struct xtables_target ct_target_r
.x6_parse = ct_parse_v1,
.x6_options = ct_opts_v1,
},
+#endif
{
.family = NFPROTO_UNSPEC,
.name = "CT",
@@ -329,6 +331,7 @@ static struct xtables_target ct_target_r
.x6_parse = ct_parse_v1,
.x6_options = ct_opts_v1,
},
+#ifndef NO_LEGACY
{
.family = NFPROTO_UNSPEC,
.name = "NOTRACK",
@@ -366,6 +369,7 @@ static struct xtables_target ct_target_r
.revision = 0,
.version = XTABLES_VERSION,
},
+#endif
};
void _init(void)
Index: iptables-1.4.21/extensions/libxt_multiport.c
===================================================================
--- iptables-1.4.21.orig/extensions/libxt_multiport.c
+++ iptables-1.4.21/extensions/libxt_multiport.c
@@ -469,6 +469,7 @@ static void multiport_save6_v1(const voi
}
static struct xtables_match multiport_mt_reg[] = {
+#ifndef NO_LEGACY
{
.family = NFPROTO_IPV4,
.name = "multiport",
@@ -497,6 +498,7 @@ static struct xtables_match multiport_mt
.save = multiport_save6,
.x6_options = multiport_opts,
},
+#endif
{
.family = NFPROTO_IPV4,
.name = "multiport",