Xtables-addons 1.29

xt_TEE.c:54:19: error: request for member "dst" in something not a
structure or union
xt_TEE.c:55:20: error: "struct rtable" has no member named "u"

Linux kernel commit v2.6.36-rc1~571^2~616 changed this.

Makefile.am

@@ -1,7 +1,7 @@
 # -*- Makefile -*-
 
 ACLOCAL_AMFLAGS  = -I m4
-SUBDIRS          = extensions
+SUBDIRS          = extensions geoip
 
 man_MANS := xtables-addons.8
 

Makefile.iptrules.in

@@ -1,6 +1,8 @@
 # -*- Makefile -*-
 # MANUAL
 
+abs_top_srcdir  = @abs_top_srcdir@
+
 prefix          = @prefix@
 exec_prefix     = @exec_prefix@
 libexecdir      = @libexecdir@
@@ -8,11 +10,12 @@ xtlibdir        = @xtlibdir@
 
 CC              = @CC@
 CCLD            = ${CC}
+CFLAGS          = @CFLAGS@
 
 regular_CFLAGS  = @regular_CFLAGS@
 libxtables_CFLAGS = @libxtables_CFLAGS@
 libxtables_LIBS   = @libxtables_LIBS@
-AM_CFLAGS         = ${regular_CFLAGS} ${libxtables_CFLAGS}
+AM_CFLAGS         = ${regular_CFLAGS} ${libxtables_CFLAGS} -I${abs_top_srcdir}/extensions
 AM_DEPFLAGS     = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@
 
 AM_DEFAULT_VERBOSITY = 0

Makefile.mans.in

@@ -3,8 +3,8 @@
 
 srcdir := @srcdir@
 
-wcman_matches := $(shell find "${srcdir}" -name 'libxt_[a-z]*.man')
+wcman_matches := $(shell find "${srcdir}" -name 'libxt_[a-z]*.man' | sort)
-wcman_targets := $(shell find "${srcdir}" -name 'libxt_[A-Z]*.man')
+wcman_targets := $(shell find "${srcdir}" -name 'libxt_[A-Z]*.man' | sort)
 wlist_matches := $(patsubst ${srcdir}/libxt_%.man,%,${wcman_matches})
 wlist_targets := $(patsubst ${srcdir}/libxt_%.man,%,${wcman_targets})
 

configure.ac

@@ -1,9 +1,9 @@
 
-AC_INIT([xtables-addons], [1.27])
+AC_INIT([xtables-addons], [1.29])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
 AC_PROG_INSTALL
-AM_INIT_AUTOMAKE([1.10 -Wall foreign subdir-objects])
+AM_INIT_AUTOMAKE([1.10.2 -Wall foreign subdir-objects])
 AC_PROG_CC
 AM_PROG_CC_C_O
 AC_DISABLE_STATIC
@@ -62,7 +62,7 @@ else
 	fi;
 fi;
 echo "Found kernel version $kmajor.$kminor.$kmicro.$kstable in $kbuilddir";
-if test "$kmajor" -gt 2 -o "$kminor" -gt 6 -o "$kmicro" -gt 35; then
+if test "$kmajor" -gt 2 -o "$kminor" -gt 6 -o "$kmicro" -gt 36; then
 	echo "WARNING: You are trying a newer kernel. Results may vary. :-)";
 elif test \( "$kmajor" -lt 2 -o "$kminor" -lt 6 -o "$kmicro" -lt 17 \) -o \
     \( "$kmajor" -eq 2 -a "$kminor" -eq 6 -a "$kmicro" -eq 18 -a \
@@ -74,7 +74,7 @@ fi;
 AC_SUBST([regular_CFLAGS])
 AC_SUBST([kbuilddir])
 AC_SUBST([xtlibdir])
-AC_CONFIG_FILES([Makefile Makefile.iptrules Makefile.mans
+AC_CONFIG_FILES([Makefile Makefile.iptrules Makefile.mans geoip/Makefile
 	extensions/Makefile extensions/ACCOUNT/Makefile
 	extensions/ipset/Makefile extensions/pknock/Makefile])
 AC_OUTPUT

doc/api/2.6.17.c

@@ -0,0 +1,64 @@
+match:
+
+	/* true/false */
+	int
+	(*match)(
+		const struct sk_buff *skb,
+		const struct net_device *in,
+		const struct net_device *out,
+		const struct xt_match *match,
+		const void *matchinfo,
+		int offset,
+		unsigned int protoff,
+		int *hotdrop,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const char *tablename,
+		const void *ip,
+		const struct xt_match *match,
+		void *matchinfo,
+		unsigned int matchinfosize,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_match *match,
+		void *matchinfo,
+		unsigned int matchinfosize,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff **pskb,
+		const struct net_device *in,
+		const struct net_device *out,
+		unsigned int hooknum,
+		const struct xt_target *target,
+		const void *targinfo,
+		void *userdata,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const char *tablename,
+		const void *entry,
+		const struct xt_target *target,
+		void *targinfo,
+		unsigned int targinfosize,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_target *target,
+		void *targinfo,
+		unsigned int targinfosize,
+	);

doc/api/2.6.19.c

@@ -0,0 +1,59 @@
+match:
+
+	/* true/false */
+	int
+	(*match)(
+		const struct sk_buff *skb,
+		const struct net_device *in,
+		const struct net_device *out,
+		const struct xt_match *match,
+		const void *matchinfo,
+		int offset,
+		unsigned int protoff,
+		int *hotdrop,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const char *tablename,
+		const void *ip,
+		const struct xt_match *match,
+		void *matchinfo,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_match *match,
+		void *matchinfo,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff **pskb,
+		const struct net_device *in,
+		const struct net_device *out,
+		unsigned int hooknum,
+		const struct xt_target *target,
+		const void *targinfo,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const char *tablename,
+		const void *entry,
+		const struct xt_target *target,
+		void *targinfo,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_target *target,
+		void *targinfo,
+	);

doc/api/2.6.23.c

@@ -0,0 +1,59 @@
+match:
+
+	/* true/false */
+	bool
+	(*match)(
+		const struct sk_buff *skb,
+		const struct net_device *in,
+		const struct net_device *out,
+		const struct xt_match *match,
+		const void *matchinfo,
+		int offset,
+		unsigned int protoff,
+		bool *hotdrop,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const char *tablename,
+		const void *ip,
+		const struct xt_match *match,
+		void *matchinfo,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_match *match,
+		void *matchinfo,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff **pskb,
+		const struct net_device *in,
+		const struct net_device *out,
+		unsigned int hooknum,
+		const struct xt_target *target,
+		const void *targinfo,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const char *tablename,
+		const void *entry,
+		const struct xt_target *target,
+		void *targinfo,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_target *target,
+		void *targinfo,
+	);

doc/api/2.6.24.c

@@ -0,0 +1,59 @@
+match:
+
+	/* true/false */
+	bool
+	(*match)(
+		const struct sk_buff *skb,
+		const struct net_device *in,
+		const struct net_device *out,
+		const struct xt_match *match,
+		const void *matchinfo,
+		int offset,
+		unsigned int protoff,
+		bool *hotdrop,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const char *tablename,
+		const void *ip,
+		const struct xt_match *match,
+		void *matchinfo,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_match *match,
+		void *matchinfo,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff *skb,
+		const struct net_device *in,
+		const struct net_device *out,
+		unsigned int hooknum,
+		const struct xt_target *target,
+		const void *targinfo,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const char *tablename,
+		const void *entry,
+		const struct xt_target *target,
+		void *targinfo,
+		unsigned int hook_mask,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_target *target,
+		void *targinfo,
+	);

doc/api/2.6.28.c

@@ -0,0 +1,39 @@
+match:
+
+	/* true/false */
+	bool
+	(*match)(
+		const struct sk_buff *skb,
+		const struct xt_match_param *,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const struct xt_mtchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_mtdtor_param *,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff *skb,
+		const struct xt_target_param *,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const struct xt_tgchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_tgdtor_param *,
+	);

doc/api/2.6.31.c

@@ -0,0 +1,38 @@
+match:
+
+	/* true/false */
+	bool
+	(*match)(
+		const struct sk_buff *skb,
+		const struct xt_match_param *,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const struct xt_mtchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_mtdtor_param *,
+	);
+
+target:
+
+	unsigned int
+	(*target)(
+		struct sk_buff *skb,
+		const struct xt_target_param *,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const struct xt_tgchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_tgdtor_param *,
+	);

doc/api/2.6.32.c

@@ -0,0 +1,39 @@
+match:
+
+	/* true/false */
+	bool
+	(*match)(
+		const struct sk_buff *skb,
+		const struct xt_match_param *,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const struct xt_mtchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_mtdtor_param *,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff *skb,
+		const struct xt_target_param *,
+	);
+
+	/* true/false */
+	bool
+	(*checkentry)(
+		const struct xt_tgchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_tgdtor_param *,
+	);

doc/api/2.6.35.c

@@ -0,0 +1,39 @@
+match:
+
+	/* true/false */
+	bool
+	(*match)(
+		const struct sk_buff *skb,
+		struct xt_action_param *,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const struct xt_mtchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_mtdtor_param *,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff *skb,
+		const struct xt_action_param *,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const struct xt_tgchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_tgdtor_param *,
+	);

doc/api/xt-a.c

@@ -0,0 +1,39 @@
+match:
+
+	/* true/false */
+	bool
+	(*match)(
+		const struct sk_buff *skb,
+		struct xt_action_param *,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const struct xt_mtchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_mtdtor_param *,
+	);
+
+target:
+
+	/* verdict */
+	unsigned int
+	(*target)(
+		struct sk_buff **pskb,
+		const struct xt_action_param *,
+	);
+
+	/* error code */
+	int
+	(*checkentry)(
+		const struct xt_tgchk_param *,
+	);
+
+	void
+	(*destroy)(
+		const struct xt_tgdtor_param *,
+	);

doc/changelog.txt

@@ -3,6 +3,26 @@ HEAD
 ====
 
 
+v1.29 (September 29 2010)
+=========================
+- compat_xtables: return bool for match_check and target_check in 2.6.23..34
+- ipset: enable building of ip_set_ipport{ip,net}hash.ko
+- support for Linux 2.6.36
+- SYSRQ: resolve compile error with Linux 2.6.36
+- TEE: resolve compile error with Linux 2.6.36
+- add workaround for broken linux-glibc-devel 2.6.34 userspace headers
+  ("implicit declaration of function 'ALIGN'")
+
+
+Xtables-addons 1.28 (July 24 2010)
+==================================
+- RAWNAT: IPv6 variants erroneously rejected masks /33-/128
+- new target xt_CHECKSUM
+- xt_length2: add support for IPv6 jumbograms
+- xt_geoip: fix possible out-of-bounds access
+- import xt_geoip database scripts
+
+
 Xtables-addons 1.27 (May 16 2010)
 =================================
 - further updates for the upcoming 2.6.35 changes

extensions/ACCOUNT/libxt_ACCOUNT.c

@@ -12,6 +12,7 @@
 #include <stddef.h>
 #include <xtables.h>
 #include "xt_ACCOUNT.h"
+#include "compat_user.h"
 
 static struct option account_tg_opts[] = {
 	{.name = "addr",  .has_arg = true, .val = 'a'},

extensions/Kbuild

@@ -7,6 +7,7 @@ obj-m                    += compat_xtables.o
 
 obj-${build_ACCOUNT}     += ACCOUNT/
 obj-${build_CHAOS}       += xt_CHAOS.o
+obj-${build_CHECKSUM}    += xt_CHECKSUM.o
 obj-${build_DELUDE}      += xt_DELUDE.o
 obj-${build_DHCPMAC}     += xt_DHCPMAC.o
 obj-${build_ECHO}        += xt_ECHO.o

extensions/Mbuild

@@ -2,6 +2,7 @@
 
 obj-${build_ACCOUNT}     += ACCOUNT/
 obj-${build_CHAOS}       += libxt_CHAOS.so
+obj-${build_CHECKSUM}    += libxt_CHECKSUM.so
 obj-${build_DELUDE}      += libxt_DELUDE.so
 obj-${build_DHCPMAC}     += libxt_DHCPMAC.so libxt_dhcpmac.so
 obj-${build_ECHO}        += libxt_ECHO.so

extensions/compat_user.h

@@ -0,0 +1,12 @@
+/*
+ *	Userspace-level compat hacks
+ */
+#ifndef _XTABLES_COMPAT_USER_H
+#define _XTABLES_COMPAT_USER_H 1
+
+/* linux-glibc-devel 2.6.34 header screwup */
+#ifndef ALIGN
+#	define ALIGN(s, n) (((s) + ((n) - 1)) & ~((n) - 1))
+#endif
+
+#endif /* _XTABLES_COMPAT_USER_H */

extensions/compat_xtables.c

@@ -105,7 +105,11 @@ static bool xtnu_match_check(const char *table, const void *entry,
 		return false;
 	if (nm->checkentry == NULL)
 		return true;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 23)
 	return nm->checkentry(&local_par);
+#else
+	return nm->checkentry(&local_par) == 0;
+#endif
 }
 #endif
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) && \
@@ -118,7 +122,7 @@ static bool xtnu_match_check(const struct xt_mtchk_param *par)
 		return false;
 	if (nm->checkentry == NULL)
 		return true;
-	return nm->checkentry(par) == 0 ? true : false;
+	return nm->checkentry(par) == 0;
 }
 #endif
 
@@ -313,7 +317,11 @@ static bool xtnu_target_check(const char *table, const void *entry,
 	if (nt->checkentry == NULL)
 		/* this is valid, just like if there was no function */
 		return true;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 23)
 	return nt->checkentry(&local_par);
+#else
+	return nt->checkentry(&local_par) == 0;
+#endif
 }
 #endif
 
@@ -327,7 +335,7 @@ static bool xtnu_target_check(const struct xt_tgchk_param *par)
 		return false;
 	if (nt->checkentry == NULL)
 		return true;
-	return nt->checkentry(par) == 0 ? true : false;
+	return nt->checkentry(par) == 0;
 }
 #endif
 

extensions/compat_xtables.h

@@ -86,6 +86,11 @@
 #	define ip6t_unregister_table(tbl) ip6t_unregister_table(tbl)
 #endif
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36)
+#	define rt_dst(rt)	(&(rt)->dst)
+#else
+#	define rt_dst(rt)	(&(rt)->u.dst)
+#endif
 
 #if !defined(NIP6) && !defined(NIP6_FMT)
 #	define NIP6(addr) \

extensions/ipset/Kbuild

@@ -3,4 +3,5 @@
 obj-m += ipt_set.o ipt_SET.o
 obj-m += ip_set.o ip_set_ipmap.o ip_set_portmap.o ip_set_macipmap.o
 obj-m += ip_set_iphash.o ip_set_nethash.o ip_set_ipporthash.o
+obj-m += ip_set_ipportiphash.o ip_set_ipportnethash.o
 obj-m += ip_set_iptree.o ip_set_iptreemap.o ip_set_setlist.o

extensions/ipset/ip_set.c

@@ -929,11 +929,11 @@ ip_set_sockfn_set(struct sock *sk, int optval, void *user, unsigned int len)
 	}
 	if (copy_from_user(data, user, len) != 0) {
 		res = -EFAULT;
-		goto done;
+		goto cleanup;
 	}
 	if (down_interruptible(&ip_set_app_mutex)) {
 		res = -EINTR;
-		goto done;
+		goto cleanup;
 	}
 
 	op = (unsigned *)data;
@@ -1109,6 +1109,7 @@ ip_set_sockfn_set(struct sock *sk, int optval, void *user, unsigned int len)
 
     done:
 	up(&ip_set_app_mutex);
+    cleanup:
 	vfree(data);
 	if (res > 0)
 		res = 0;
@@ -1142,11 +1143,11 @@ ip_set_sockfn_get(struct sock *sk, int optval, void *user, int *len)
 	}
 	if (copy_from_user(data, user, *len) != 0) {
 		res = -EFAULT;
-		goto done;
+		goto cleanup;
 	}
 	if (down_interruptible(&ip_set_app_mutex)) {
 		res = -EINTR;
-		goto done;
+		goto cleanup;
 	}
 
 	op = (unsigned *) data;
@@ -1439,6 +1440,7 @@ ip_set_sockfn_get(struct sock *sk, int optval, void *user, int *len)
     	
     done:
 	up(&ip_set_app_mutex);
+    cleanup:
 	vfree(data);
 	if (res > 0)
 		res = 0;

extensions/ipset/ipset.8

@@ -502,9 +502,13 @@ data storage in
 set and add src to the first single or src,dst to the first double 
 data storage set in
 \fIb\fP.
-.P
 You can imagine a setlist type of set as an ordered union of
 the set elements. 
+.P
+Please note: by the ipset command you can add, delete and
+.B test
+the setnames in a setlist type of set, and not the presence of 
+a set's member (such as an IP address).
 .SH GENERAL RESTRICTIONS
 Setnames starting with colon (:) cannot be defined. Zero valued set 
 entries cannot be used with hash type of sets.

extensions/ipset/ipset.c

@@ -30,7 +30,7 @@
 #define PROC_SYS_MODPROBE "/proc/sys/kernel/modprobe"
 #endif
 
-#define IPSET_VERSION "4.2"
+#define IPSET_VERSION "4.3"
 
 char program_name[] = "ipset";
 char program_version[] = IPSET_VERSION;

extensions/libxt_CHAOS.c

@@ -16,6 +16,7 @@
 #include <xtables.h>
 #include <linux/netfilter/x_tables.h>
 #include "xt_CHAOS.h"
+#include "compat_user.h"
 
 enum {
 	F_DELUDE = 1 << 0,

extensions/libxt_CHECKSUM.c

@@ -0,0 +1,94 @@
+/*
+ * (C) 2002 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2010 by Red Hat, Inc
+ * Author: Michael S. Tsirkin <mst@redhat.com>
+ *
+ * This program is distributed under the terms of GNU GPL v2, 1991
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+#include <xtables.h>
+#include "xt_CHECKSUM.h"
+#include "compat_user.h"
+
+static void CHECKSUM_help(void)
+{
+	printf(
+"CHECKSUM target options\n"
+"  --checksum-fill        Fill in packet checksum.\n");
+}
+
+static const struct option CHECKSUM_opts[] = {
+	{ "checksum-fill", 0, NULL, 'F' },
+	{ .name = NULL }
+};
+
+static int CHECKSUM_parse(int c, char **argv, int invert, unsigned int *flags,
+                     const void *entry, struct xt_entry_target **target)
+{
+	struct xt_CHECKSUM_info *einfo
+		= (struct xt_CHECKSUM_info *)(*target)->data;
+
+	switch (c) {
+	case 'F':
+		xtables_param_act(XTF_ONLY_ONCE, "CHECKSUM", "--checksum-fill",
+			*flags & XT_CHECKSUM_OP_FILL);
+		einfo->operation = XT_CHECKSUM_OP_FILL;
+		*flags |= XT_CHECKSUM_OP_FILL;
+		break;
+	default:
+		return 0;
+	}
+
+	return 1;
+}
+
+static void CHECKSUM_check(unsigned int flags)
+{
+	if (!flags)
+		xtables_error(PARAMETER_PROBLEM,
+		           "CHECKSUM target: Parameter --checksum-fill is required");
+}
+
+static void CHECKSUM_print(const void *ip, const struct xt_entry_target *target,
+                      int numeric)
+{
+	const struct xt_CHECKSUM_info *einfo =
+		(const struct xt_CHECKSUM_info *)target->data;
+
+	printf("CHECKSUM ");
+
+	if (einfo->operation & XT_CHECKSUM_OP_FILL)
+		printf("fill ");
+}
+
+static void CHECKSUM_save(const void *ip, const struct xt_entry_target *target)
+{
+	const struct xt_CHECKSUM_info *einfo =
+		(const struct xt_CHECKSUM_info *)target->data;
+
+	if (einfo->operation & XT_CHECKSUM_OP_FILL)
+		printf("--checksum-fill ");
+}
+
+static struct xtables_target checksum_tg_reg = {
+	.name          = "CHECKSUM",
+	.version       = XTABLES_VERSION,
+	.family        = NFPROTO_UNSPEC,
+	.size          = XT_ALIGN(sizeof(struct xt_CHECKSUM_info)),
+	.userspacesize = XT_ALIGN(sizeof(struct xt_CHECKSUM_info)),
+	.help          = CHECKSUM_help,
+	.parse         = CHECKSUM_parse,
+	.final_check   = CHECKSUM_check,
+	.print         = CHECKSUM_print,
+	.save          = CHECKSUM_save,
+	.extra_opts    = CHECKSUM_opts,
+};
+
+static __attribute__((constructor)) void _init(void)
+{
+	xtables_register_target(&checksum_tg_reg);
+}

extensions/libxt_CHECKSUM.man

@@ -0,0 +1,8 @@
+This target allows to selectively work around broken/old applications.
+It can only be used in the mangle table.
+.TP
+\fB\-\-checksum\-fill\fP
+Compute and fill in the checksum in a packet that lacks a checksum.
+This is particularly useful, if you need to work around old applications
+such as dhcp clients, that do not work well with checksum offloads,
+but don't want to disable checksum offload in your device.

extensions/libxt_DELUDE.c

@@ -13,6 +13,7 @@
 
 #include <xtables.h>
 #include <linux/netfilter/x_tables.h>
+#include "compat_user.h"
 
 static void delude_tg_help(void)
 {

extensions/libxt_DHCPMAC.c

@@ -17,6 +17,7 @@
 #include <xtables.h>
 #include "xt_DHCPMAC.h"
 #include "mac.c"
+#include "compat_user.h"
 
 enum {
 	F_MAC = 1 << 0,

extensions/libxt_ECHO.c

@@ -10,6 +10,7 @@
 #include <stdio.h>
 #include <getopt.h>
 #include <xtables.h>
+#include "compat_user.h"
 
 static void echo_tg_help(void)
 {

extensions/libxt_IPMARK.c

@@ -14,6 +14,7 @@
 #include <string.h>
 #include <xtables.h>
 #include "xt_IPMARK.h"
+#include "compat_user.h"
 
 enum {
 	FL_ADDR_USED     = 1 << 0,

extensions/libxt_LOGMARK.c

@@ -13,6 +13,7 @@
 #include <string.h>
 #include <xtables.h>
 #include "xt_LOGMARK.h"
+#include "compat_user.h"
 
 enum {
 	F_LEVEL  = 1 << 0,

extensions/libxt_RAWDNAT.c

@@ -15,6 +15,7 @@
 #include <xtables.h>
 #include <linux/netfilter.h>
 #include "xt_RAWNAT.h"
+#include "compat_user.h"
 
 enum {
 	FLAGS_TO = 1 << 0,
@@ -79,7 +80,7 @@ rawdnat_tg6_parse(int c, char **argv, int invert, unsigned int *flags,
 		end = strchr(optarg, '/');
 		if (end != NULL) {
 			*end++ = '\0';
-			if (!xtables_strtoui(end, NULL, &mask, 0, 32))
+			if (!xtables_strtoui(end, NULL, &mask, 0, 128))
 				xtables_param_act(XTF_BAD_VALUE, "RAWDNAT",
 					"--to-destination", optarg);
 			info->mask = mask;

extensions/libxt_RAWSNAT.c

@@ -15,6 +15,7 @@
 #include <xtables.h>
 #include <linux/netfilter.h>
 #include "xt_RAWNAT.h"
+#include "compat_user.h"
 
 enum {
 	FLAGS_TO = 1 << 0,
@@ -79,7 +80,7 @@ rawsnat_tg6_parse(int c, char **argv, int invert, unsigned int *flags,
 		end = strchr(optarg, '/');
 		if (end != NULL) {
 			*end++ = '\0';
-			if (!xtables_strtoui(end, NULL, &mask, 0, 32))
+			if (!xtables_strtoui(end, NULL, &mask, 0, 128))
 				xtables_param_act(XTF_BAD_VALUE, "RAWSNAT",
 					"--to-source", optarg);
 			info->mask = mask;

extensions/libxt_STEAL.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <xtables.h>
+#include "compat_user.h"
 
 static void steal_tg_help(void)
 {

extensions/libxt_SYSRQ.c

@@ -5,6 +5,7 @@
 #include <stdio.h>
 #include <getopt.h>
 #include <xtables.h>
+#include "compat_user.h"
 
 static void sysrq_tg_help(void)
 {

extensions/libxt_TARPIT.c

@@ -5,6 +5,7 @@
 #include <stdio.h>
 #include <getopt.h>
 #include <xtables.h>
+#include "compat_user.h"
 
 static void tarpit_tg_help(void)
 {

extensions/libxt_TEE.c

@@ -23,6 +23,7 @@
 #include <linux/netfilter.h>
 #include <linux/netfilter/x_tables.h>
 #include "xt_TEE.h"
+#include "compat_user.h"
 
 enum {
 	FLAG_GATEWAY = 1 << 0,

extensions/libxt_condition.c

@@ -16,6 +16,7 @@
 #include <getopt.h>
 #include <xtables.h>
 #include "xt_condition.h"
+#include "compat_user.h"
 
 static void condition_help(void)
 {

extensions/libxt_dhcpmac.c

@@ -16,6 +16,7 @@
 #include <xtables.h>
 #include "xt_DHCPMAC.h"
 #include "mac.c"
+#include "compat_user.h"
 
 enum {
 	F_MAC = 1 << 0,

extensions/libxt_fuzzy.c

@@ -15,6 +15,7 @@
 #include <string.h>
 #include <xtables.h>
 #include "xt_fuzzy.h"
+#include "compat_user.h"
 
 static void fuzzy_mt_help(void)
 {

extensions/libxt_geoip.c

@@ -24,6 +24,7 @@
 #include <unistd.h>
 #include <xtables.h>
 #include "xt_geoip.h"
+#include "compat_user.h"
 #define GEOIP_DB_DIR "/usr/share/xt_geoip"
 
 static void geoip_help(void)

extensions/libxt_geoip.man

@@ -10,8 +10,8 @@ NOTE:
 The country is inputed by its ISO-3166 code.
 .PP
 The extra files you will need is the binary database files. They are generated
-from a country-subnet database with the geoip_csv_iv0.pl tool, available at
+from a country-subnet database with the geoip_csv_iv0.pl tool that should be
-http://jengelh.hopto.org/files/geoip/ . The files MUST be moved to
+available in /usr/lib(exec)/xtables-addons/ . The resulting files MUST be moved
-/usr/share/xt_geoip/
+to /usr/share/xt_geoip/
 as the shared library is statically looking for this pathname (e.g.
 /usr/share/xt_geoip/LE/de.iv0).

extensions/libxt_iface.c

@@ -15,6 +15,7 @@
 
 #include <xtables.h>
 #include "xt_iface.h"
+#include "compat_user.h"
 
 static const struct option iface_mt_opts[] = {
 	{.name = "iface",        .has_arg = true,  .val = 'i'},

extensions/libxt_ipp2p.c

@@ -17,6 +17,7 @@
 #include <ctype.h>
 #include <xtables.h>
 #include "xt_ipp2p.h"
+#include "compat_user.h"
 #define param_act(t, s, f) xtables_param_act((t), "ipp2p", (s), (f))
 
 static void ipp2p_mt_help(void)

extensions/libxt_ipv4options.c

@@ -14,6 +14,7 @@
 #include <string.h>
 #include <xtables.h>
 #include "xt_ipv4options.h"
+#include "compat_user.h"
 
 /*
  * Overview from http://www.networksorcery.com/enp/protocol/ip.htm

extensions/libxt_length2.c

@@ -5,6 +5,7 @@
 #include <string.h>
 #include <xtables.h>
 #include "xt_length2.h"
+#include "compat_user.h"
 
 enum {
 	F_LAYER  = 1 << 0,

extensions/libxt_lscan.c

@@ -17,6 +17,7 @@
 #include <xtables.h>
 #include <linux/netfilter/x_tables.h>
 #include "xt_lscan.h"
+#include "compat_user.h"
 
 static const struct option lscan_mt_opts[] = {
 	{.name = "stealth", .has_arg = false, .val = 'x'},

extensions/libxt_psd.c

@@ -28,6 +28,7 @@
 #include <xtables.h>
 #include <linux/netfilter/x_tables.h>
 #include "xt_psd.h"
+#include "compat_user.h"
 
 /* Function which prints out usage message. */
 static void psd_mt_help(void) {

extensions/libxt_quota2.c

@@ -15,6 +15,7 @@
 #include <string.h>
 #include <xtables.h>
 #include "xt_quota2.h"
+#include "compat_user.h"
 
 enum {
 	FL_QUOTA     = 1 << 0,

extensions/pknock/libxt_pknock.c

@@ -16,6 +16,7 @@
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include "xt_pknock.h"
+#include "compat_user.h"
 
 static const struct option pknock_mt_opts[] = {
 	/* .name, .has_arg, .flag, .val */

extensions/xt_CHECKSUM.c

@@ -0,0 +1,72 @@
+/*
+ * (C) 2002 by Harald Welte <laforge@netfilter.org>
+ * (C) 2010 Red Hat, Inc.
+ *
+ * Author: Michael S. Tsirkin <mst@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/module.h>
+#include <linux/skbuff.h>
+
+#include <linux/netfilter/x_tables.h>
+#include "xt_CHECKSUM.h"
+#include "compat_xtables.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael S. Tsirkin <mst@redhat.com>");
+MODULE_DESCRIPTION("Xtables: checksum modification");
+MODULE_ALIAS("ipt_CHECKSUM");
+MODULE_ALIAS("ip6t_CHECKSUM");
+
+static unsigned int
+checksum_tg(struct sk_buff **pskb, const struct xt_action_param *par)
+{
+	struct sk_buff *skb = *pskb;
+
+	if (skb->ip_summed == CHECKSUM_PARTIAL)
+		skb_checksum_help(skb);
+
+	return XT_CONTINUE;
+}
+
+static int checksum_tg_check(const struct xt_tgchk_param *par)
+{
+	const struct xt_CHECKSUM_info *einfo = par->targinfo;
+
+	if (einfo->operation & ~XT_CHECKSUM_OP_FILL) {
+		pr_info("unsupported CHECKSUM operation %x\n", einfo->operation);
+		return -EINVAL;
+	}
+	if (!einfo->operation) {
+		pr_info("no CHECKSUM operation enabled\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static struct xt_target checksum_tg_reg __read_mostly = {
+	.name       = "CHECKSUM",
+	.family     = NFPROTO_UNSPEC,
+	.target     = checksum_tg,
+	.targetsize = sizeof(struct xt_CHECKSUM_info),
+	.table      = "mangle",
+	.checkentry = checksum_tg_check,
+	.me         = THIS_MODULE,
+};
+
+static int __init checksum_tg_init(void)
+{
+	return xt_register_target(&checksum_tg_reg);
+}
+
+static void __exit checksum_tg_exit(void)
+{
+	xt_unregister_target(&checksum_tg_reg);
+}
+
+module_init(checksum_tg_init);
+module_exit(checksum_tg_exit);

extensions/xt_CHECKSUM.h

@@ -0,0 +1,18 @@
+/* Header file for iptables ipt_CHECKSUM target
+ *
+ * (C) 2002 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2010 Red Hat Inc
+ * Author: Michael S. Tsirkin <mst@redhat.com>
+ *
+ * This software is distributed under GNU GPL v2, 1991
+*/
+#ifndef _IPT_CHECKSUM_TARGET_H
+#define _IPT_CHECKSUM_TARGET_H
+
+#define XT_CHECKSUM_OP_FILL	0x01	/* fill in checksum in IP header */
+
+struct xt_CHECKSUM_info {
+	__u8 operation;	/* bitset of operations */
+};
+
+#endif /* _IPT_CHECKSUM_TARGET_H */

extensions/xt_RAWNAT.c

@@ -48,7 +48,7 @@ rawnat_ipv6_mask(__be32 *addr, const __be32 *repl, unsigned int mask)
 		break;
 	case 33 ... 63:
 		addr[0] = repl[0];
-		addr[1] = remask(addr[1], repl[1], mask - 64);
+		addr[1] = remask(addr[1], repl[1], mask - 32);
 		break;
 	case 64:
 		addr[0] = repl[0];
@@ -57,7 +57,7 @@ rawnat_ipv6_mask(__be32 *addr, const __be32 *repl, unsigned int mask)
 	case 65 ... 95:
 		addr[0] = repl[0];
 		addr[1] = repl[1];
-		addr[2] = remask(addr[2], repl[2], mask - 96);
+		addr[2] = remask(addr[2], repl[2], mask - 64);
 	case 96:
 		addr[0] = repl[0];
 		addr[1] = repl[1];
@@ -67,7 +67,7 @@ rawnat_ipv6_mask(__be32 *addr, const __be32 *repl, unsigned int mask)
 		addr[0] = repl[0];
 		addr[1] = repl[1];
 		addr[2] = repl[2];
-		addr[3] = remask(addr[3], repl[3], mask - 128);
+		addr[3] = remask(addr[3], repl[3], mask - 96);
 		break;
 	case 128:
 		addr[0] = repl[0];

extensions/xt_SYSRQ.c

@@ -135,13 +135,13 @@ static unsigned int sysrq_tg(const void *pdata, uint16_t len)
 			"0123456789abcdef"[sysrq_digest[i] & 0xf];
 	}
 	sysrq_hexdigest[2*sysrq_digest_size] = '\0';
-	if (len - n < sysrq_digest_size) {
+	if (len - n < sysrq_digest_size * 2) {
 		if (sysrq_debug)
 			printk(KERN_INFO KBUILD_MODNAME ": Short digest,"
 			       " expected %s\n", sysrq_hexdigest);
 		return NF_DROP;
 	}
-	if (strncmp(data + n, sysrq_hexdigest, sysrq_digest_size) != 0) {
+	if (strncmp(data + n, sysrq_hexdigest, sysrq_digest_size * 2) != 0) {
 		if (sysrq_debug)
 			printk(KERN_INFO KBUILD_MODNAME ": Bad digest,"
 			       " expected %s\n", sysrq_hexdigest);
@@ -152,7 +152,9 @@ static unsigned int sysrq_tg(const void *pdata, uint16_t len)
 	sysrq_seqno = new_seqno;
 	for (i = 0; i < len && data[i] != ','; ++i) {
 		printk(KERN_INFO KBUILD_MODNAME ": SysRq %c\n", data[i]);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36)
+		handle_sysrq(data[i]);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
 		handle_sysrq(data[i], NULL);
 #else
 		handle_sysrq(data[i], NULL, NULL);
@@ -187,7 +189,9 @@ static unsigned int sysrq_tg(const void *pdata, uint16_t len)
 		return NF_DROP;
 	}
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36)
+	handle_sysrq(c);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
 	handle_sysrq(c, NULL);
 #else
 	handle_sysrq(c, NULL, NULL);
@@ -324,8 +328,8 @@ static int __init sysrq_crypto_init(void)
 		printk(KERN_WARNING KBUILD_MODNAME
 			": Error: Could not find or load %s hash\n",
 			sysrq_hash);
-		sysrq_tfm = NULL;
 		ret = PTR_ERR(sysrq_tfm);
+		sysrq_tfm = NULL;
 		goto fail;
 	}
 	sysrq_digest_size = crypto_hash_digestsize(sysrq_tfm);

extensions/xt_TARPIT.c

@@ -73,7 +73,7 @@ static void tarpit_tcp(struct sk_buff *oldskb, unsigned int hook)
 	/* Rate-limit replies to !SYN,ACKs */
 #if 0
 	if (!oth->syn && oth->ack)
-		if (!xrlim_allow(&ort->u.dst, HZ))
+		if (!xrlim_allow(rt_dst(ort), HZ))
 			return;
 #endif
 

extensions/xt_TEE.c

@@ -51,8 +51,8 @@ tee_tg_route4(struct sk_buff *skb, const struct xt_tee_tginfo *info)
 		return false;
 
 	dst_release(skb_dst(skb));
-	skb_dst_set(skb, &rt->u.dst);
+	skb_dst_set(skb, rt_dst(rt));
-	skb->dev      = rt->u.dst.dev;
+	skb->dev      = rt_dst(rt)->dev;
 	skb->protocol = htons(ETH_P_IP);
 	return true;
 }

extensions/xt_geoip.c

@@ -126,13 +126,13 @@ static bool geoip_bsearch(const struct geoip_subnet *range,
 {
 	int mid;
 
-	if (hi < lo)
+	if (hi <= lo)
 		return false;
 	mid = (lo + hi) / 2;
 	if (range[mid].begin <= addr && addr <= range[mid].end)
 		return true;
 	if (range[mid].begin > addr)
-		return geoip_bsearch(range, addr, lo, mid - 1);
+		return geoip_bsearch(range, addr, lo, mid);
 	else if (range[mid].end < addr)
 		return geoip_bsearch(range, addr, mid + 1, hi);
 

extensions/xt_length2.c

@@ -207,6 +207,10 @@ length2_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 	bool hit = true;
 
 	if (info->flags & XT_LENGTH_LAYER3) {
+		if (iph->payload_len == 0)
+			/* Jumbogram */
+			len = skb->len;
+		else
 			len = sizeof(struct ipv6hdr) + ntohs(iph->payload_len);
 	} else {
 		l4proto = llayer4_proto(skb, &thoff, &par->hotdrop);

geoip/.gitignore

@@ -0,0 +1,6 @@
+/BE
+/LE
+/GeoIPCountryCSV.zip
+/GeoIPCountryWhois.csv
+/GeoIPv6.csv
+/GeoIPv6.csv.gz

geoip/Makefile.am

@@ -0,0 +1,3 @@
+# -*- Makefile -*-
+
+pkglibexec_SCRIPTS = geoip_build_db.pl geoip_download.sh

geoip/geoip_build_db.pl

@@ -0,0 +1,54 @@
+#!/usr/bin/perl
+#
+#	Converter for MaxMind CSV database to binary, for xt_geoip
+#	Copyright © Jan Engelhardt <jengelh@medozas.de>, 2008
+#
+#	Use -b argument to create big-endian tables.
+#
+use Getopt::Long;
+use IO::Handle;
+use Text::CSV_XS; # or trade for Text::CSV
+use strict;
+
+my %country;
+my %names;
+my $csv = Text::CSV_XS->new({binary => 0, eol => $/}); # or Text::CSV
+my $mode = "VV";
+my $target_dir = ".";
+
+&Getopt::Long::Configure(qw(bundling));
+&GetOptions(
+	"D=s" => \$target_dir,
+	"b"   => sub { $mode = "NN"; },
+);
+
+if (!-d $target_dir) {
+	print STDERR "Target directory $target_dir does not exist.\n";
+	exit 1;
+}
+
+while (my $row = $csv->getline(*ARGV)) {
+	if (!defined($country{$row->[4]})) {
+		$country{$row->[4]} = [];
+		$names{$row->[4]} = $row->[5];
+	}
+	my $c = $country{$row->[4]};
+	push(@$c, [$row->[2], $row->[3]]);
+	if ($. % 4096 == 0) {
+		print STDERR "\r\e[2K$. entries";
+	}
+}
+
+print STDERR "\r\e[2K$. entries total\n";
+
+foreach my $iso_code (sort keys %country) {
+	printf "%5u ranges for %s %s\n",
+		scalar(@{$country{$iso_code}}),
+		$iso_code, $names{$iso_code};
+
+	open(my $fh, "> $target_dir/".uc($iso_code).".iv0");
+	foreach my $range (@{$country{$iso_code}}) {
+		print $fh pack($mode, $range->[0], $range->[1]);
+	}
+	close $fh;
+}

geoip/geoip_download.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+rm -f GeoIPv6.csv{,.gz} GeoIPCountryCSV.zip GeoIPCountryWhois.csv;
+wget \
+	http://geolite.maxmind.com/download/geoip/database/GeoIPv6.csv.gz \
+	http://geolite.maxmind.com/download/geoip/database/GeoIPCountryCSV.zip;
+gzip -d GeoIPv6.csv.gz;
+unzip GeoIPCountryCSV.zip;

mconfig

@@ -2,6 +2,7 @@
 #
 build_ACCOUNT=m
 build_CHAOS=m
+build_CHECKSUM=m
 build_DELUDE=m
 build_DHCPMAC=m
 build_ECHO=

xtables-addons.8.in

@@ -1,4 +1,4 @@
-.TH xtables-addons 8 "v1.27 (2010-05-16)" "" "v1.27 (2010-05-16)"
+.TH xtables-addons 8 "v1.29 (2010-09-29)" "" "v1.29 (2010-09-29)"
 .SH Name
 Xtables-addons \(em additional extensions for iptables, ip6tables, etc.
 .SH Targets