mirror of
git://git.code.sf.net/p/xtables-addons/xtables-addons
synced 2025-09-20 19:44:56 +02:00
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19 Commits
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266638e41e |
1
.gitignore
vendored
1
.gitignore
vendored
@@ -2,6 +2,7 @@
|
|||||||
*.la
|
*.la
|
||||||
*.lo
|
*.lo
|
||||||
*.loT
|
*.loT
|
||||||
|
*.mod
|
||||||
*.o
|
*.o
|
||||||
.cache.mk
|
.cache.mk
|
||||||
.deps/
|
.deps/
|
||||||
|
@@ -1,4 +1,4 @@
|
|||||||
AC_INIT([xtables-addons], [3.3])
|
AC_INIT([xtables-addons], [3.8])
|
||||||
AC_CONFIG_AUX_DIR([build-aux])
|
AC_CONFIG_AUX_DIR([build-aux])
|
||||||
AC_CONFIG_HEADERS([config.h])
|
AC_CONFIG_HEADERS([config.h])
|
||||||
AC_CONFIG_MACRO_DIR([m4])
|
AC_CONFIG_MACRO_DIR([m4])
|
||||||
@@ -57,8 +57,10 @@ if test -n "$kbuilddir"; then
|
|||||||
echo "WARNING: Version detection did not succeed. Continue at own luck.";
|
echo "WARNING: Version detection did not succeed. Continue at own luck.";
|
||||||
else
|
else
|
||||||
echo "$kmajor.$kminor.$kmicro.$kstable in $kbuilddir";
|
echo "$kmajor.$kminor.$kmicro.$kstable in $kbuilddir";
|
||||||
if test "$kmajor" -gt 5 -o "$kmajor" -eq 5 -a "$kminor" -gt 0; then
|
if test "$kmajor" -gt 5 -o "$kmajor" -eq 5 -a "$kminor" -gt 4; then
|
||||||
echo "WARNING: That kernel version is not officially supported yet. Continue at own luck.";
|
echo "WARNING: That kernel version is not officially supported yet. Continue at own luck.";
|
||||||
|
elif test "$kmajor" -eq 5 -a "$kminor" -ge 0; then
|
||||||
|
:
|
||||||
elif test "$kmajor" -eq 4 -a "$kminor" -ge 18; then
|
elif test "$kmajor" -eq 4 -a "$kminor" -ge 18; then
|
||||||
:
|
:
|
||||||
else
|
else
|
||||||
|
@@ -1,6 +1,35 @@
|
|||||||
|
|
||||||
HEAD
|
v3.8 (2020-02-03)
|
||||||
====
|
=================
|
||||||
|
- Support for Linux 5.5
|
||||||
|
- xt_geoip_build now expects the DBIP format as input,
|
||||||
|
Maxmind is thrown out.
|
||||||
|
|
||||||
|
|
||||||
|
v3.7 (2019-12-01)
|
||||||
|
=================
|
||||||
|
Fixes:
|
||||||
|
- xt_geoip: fix in6_addr little-endian byte swapping
|
||||||
|
|
||||||
|
|
||||||
|
v3.6 (2019-11-20)
|
||||||
|
=================
|
||||||
|
Enhancements:
|
||||||
|
- support for up to Linux 5.4
|
||||||
|
|
||||||
|
|
||||||
|
v3.5 (2019-09-10)
|
||||||
|
=================
|
||||||
|
Enhancements:
|
||||||
|
- xt_DELUDE, xt_TARPIT: added additional code needed to work with
|
||||||
|
bridges from Linux 5.0 onwards.
|
||||||
|
|
||||||
|
|
||||||
|
v3.4 (2019-09-06)
|
||||||
|
=================
|
||||||
|
Enhancements:
|
||||||
|
- support for up to Linux 5.3
|
||||||
|
- xt_PROTO module
|
||||||
|
|
||||||
|
|
||||||
v3.3 (2019-03-07)
|
v3.3 (2019-03-07)
|
||||||
|
@@ -13,6 +13,7 @@ obj-${build_DNETMAP} += xt_DNETMAP.o
|
|||||||
obj-${build_ECHO} += xt_ECHO.o
|
obj-${build_ECHO} += xt_ECHO.o
|
||||||
obj-${build_IPMARK} += xt_IPMARK.o
|
obj-${build_IPMARK} += xt_IPMARK.o
|
||||||
obj-${build_LOGMARK} += xt_LOGMARK.o
|
obj-${build_LOGMARK} += xt_LOGMARK.o
|
||||||
|
obj-${build_PROTO} += xt_PROTO.o
|
||||||
obj-${build_SYSRQ} += xt_SYSRQ.o
|
obj-${build_SYSRQ} += xt_SYSRQ.o
|
||||||
obj-${build_TARPIT} += xt_TARPIT.o
|
obj-${build_TARPIT} += xt_TARPIT.o
|
||||||
obj-${build_condition} += xt_condition.o
|
obj-${build_condition} += xt_condition.o
|
||||||
|
@@ -8,6 +8,7 @@ obj-${build_DNETMAP} += libxt_DNETMAP.so
|
|||||||
obj-${build_ECHO} += libxt_ECHO.so
|
obj-${build_ECHO} += libxt_ECHO.so
|
||||||
obj-${build_IPMARK} += libxt_IPMARK.so
|
obj-${build_IPMARK} += libxt_IPMARK.so
|
||||||
obj-${build_LOGMARK} += libxt_LOGMARK.so
|
obj-${build_LOGMARK} += libxt_LOGMARK.so
|
||||||
|
obj-${build_PROTO} += libxt_PROTO.so
|
||||||
obj-${build_SYSRQ} += libxt_SYSRQ.so
|
obj-${build_SYSRQ} += libxt_SYSRQ.so
|
||||||
obj-${build_TARPIT} += libxt_TARPIT.so
|
obj-${build_TARPIT} += libxt_TARPIT.so
|
||||||
obj-${build_condition} += libxt_condition.so
|
obj-${build_condition} += libxt_condition.so
|
||||||
|
105
extensions/libxt_PROTO.c
Normal file
105
extensions/libxt_PROTO.c
Normal file
@@ -0,0 +1,105 @@
|
|||||||
|
/*
|
||||||
|
* PROTO Target module
|
||||||
|
* This program is distributed under the terms of GNU GPL
|
||||||
|
*/
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <xtables.h>
|
||||||
|
#include "xt_PROTO.h"
|
||||||
|
|
||||||
|
enum {
|
||||||
|
O_PROTO_SET = 0,
|
||||||
|
O_PROTO_STOP_AT_FRAG = 1,
|
||||||
|
O_PROTO_STOP_AT_AUTH = 2,
|
||||||
|
F_PROTO_SET = 1 << O_PROTO_SET,
|
||||||
|
F_PROTO_STOP_AT_FRAG = 1 << O_PROTO_STOP_AT_FRAG,
|
||||||
|
F_PROTO_STOP_AT_AUTH = 1 << O_PROTO_STOP_AT_AUTH,
|
||||||
|
};
|
||||||
|
|
||||||
|
#define s struct xt_PROTO_info
|
||||||
|
static const struct xt_option_entry PROTO_opts[] = {
|
||||||
|
{.name = "proto-set", .type = XTTYPE_UINT8, .id = O_PROTO_SET,
|
||||||
|
.flags = XTOPT_PUT | XTOPT_MAND, XTOPT_POINTER(s, proto)},
|
||||||
|
{.name = "stop-at-frag", .type = XTTYPE_NONE, .id = O_PROTO_STOP_AT_FRAG},
|
||||||
|
{.name = "stop-at-auth", .type = XTTYPE_NONE, .id = O_PROTO_STOP_AT_AUTH},
|
||||||
|
XTOPT_TABLEEND,
|
||||||
|
};
|
||||||
|
#undef s
|
||||||
|
|
||||||
|
static void PROTO_help(void)
|
||||||
|
{
|
||||||
|
printf(
|
||||||
|
"PROTO target options\n"
|
||||||
|
" --proto-set value Set protocol to <value 0-255>\n"
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PROTO_parse(struct xt_option_call *cb)
|
||||||
|
{
|
||||||
|
struct xt_PROTO_info *info = cb->data;
|
||||||
|
|
||||||
|
xtables_option_parse(cb);
|
||||||
|
switch (cb->entry->id) {
|
||||||
|
case O_PROTO_SET:
|
||||||
|
info->mode |= 1 << XT_PROTO_SET;
|
||||||
|
break;
|
||||||
|
case O_PROTO_STOP_AT_FRAG:
|
||||||
|
info->mode |= 1 << XT_PROTO_STOP_AT_FRAG;
|
||||||
|
break;
|
||||||
|
case O_PROTO_STOP_AT_AUTH:
|
||||||
|
info->mode |= 1 << XT_PROTO_STOP_AT_AUTH;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PROTO_check(struct xt_fcheck_call *cb)
|
||||||
|
{
|
||||||
|
if (!(cb->xflags & F_PROTO_SET))
|
||||||
|
xtables_error(PARAMETER_PROBLEM,
|
||||||
|
"PROTO: You must specify the proto to be set");
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PROTO_save(const void *ip, const struct xt_entry_target *target)
|
||||||
|
{
|
||||||
|
const struct xt_PROTO_info *info = (void *)target->data;
|
||||||
|
|
||||||
|
if (info->mode & (1 << XT_PROTO_SET))
|
||||||
|
printf(" --proto-set %u", info->proto);
|
||||||
|
if (info->mode & (1 << XT_PROTO_STOP_AT_FRAG))
|
||||||
|
printf(" --stop-at-frag");
|
||||||
|
if (info->mode & (1 << XT_PROTO_STOP_AT_AUTH))
|
||||||
|
printf(" --stop-at-auth");
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PROTO_print(const void *ip, const struct xt_entry_target *target,
|
||||||
|
int numeric)
|
||||||
|
{
|
||||||
|
const struct xt_PROTO_info *info = (void *)target->data;
|
||||||
|
|
||||||
|
printf(" PROTO ");
|
||||||
|
if (info->mode & (1 << XT_PROTO_SET))
|
||||||
|
printf("set to %u", info->proto);
|
||||||
|
if (info->mode & (1 << XT_PROTO_STOP_AT_FRAG))
|
||||||
|
printf(" stop-at-frag");
|
||||||
|
if (info->mode & (1 << XT_PROTO_STOP_AT_AUTH))
|
||||||
|
printf(" stop-at-auth");
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct xtables_target proto_tg_reg = {
|
||||||
|
.name = "PROTO",
|
||||||
|
.version = XTABLES_VERSION,
|
||||||
|
.family = NFPROTO_UNSPEC,
|
||||||
|
.size = XT_ALIGN(sizeof(struct xt_PROTO_info)),
|
||||||
|
.userspacesize = XT_ALIGN(sizeof(struct xt_PROTO_info)),
|
||||||
|
.help = PROTO_help,
|
||||||
|
.print = PROTO_print,
|
||||||
|
.save = PROTO_save,
|
||||||
|
.x6_parse = PROTO_parse,
|
||||||
|
.x6_fcheck = PROTO_check,
|
||||||
|
.x6_options = PROTO_opts,
|
||||||
|
};
|
||||||
|
|
||||||
|
static __attribute__((constructor)) void _init(void)
|
||||||
|
{
|
||||||
|
xtables_register_target(&proto_tg_reg);
|
||||||
|
|
||||||
|
}
|
30
extensions/libxt_PROTO.man
Normal file
30
extensions/libxt_PROTO.man
Normal file
@@ -0,0 +1,30 @@
|
|||||||
|
.PP
|
||||||
|
The PROTO target modifies the protocol number in IP packet header.
|
||||||
|
.TP
|
||||||
|
\fB\-\-proto-set\fP \fIproto_num\fP
|
||||||
|
This option is mandatory. \fIproto_num\fP is the protocol number to which you want to
|
||||||
|
modify the packets.
|
||||||
|
.TP
|
||||||
|
\fB\-\-stop-at-frag\fP
|
||||||
|
This option is only valid for IPv6 rules. When specifying this option, the
|
||||||
|
fragment extension header will be seen as a non-extension header.
|
||||||
|
.TP
|
||||||
|
\fB\-\-stop-at-auth\fP
|
||||||
|
This option is only valid for IPv6 rules. When specifying this option, the
|
||||||
|
authentication extension header will be seen as a non-extension header.
|
||||||
|
.PP
|
||||||
|
For IPv4 packets, the \fBProtocol\fP field is modified and the checksum is
|
||||||
|
re-calculated.
|
||||||
|
.PP
|
||||||
|
For IPv6 packets, the scenario can be more complex due to the introduction of
|
||||||
|
the extension headers mechanism. By default, the PROTO target will scan the IPv6
|
||||||
|
packet, finding the last extension header and modify its \fBNext-header\fP field.
|
||||||
|
Normally, the following headers will be seen as an extension header:
|
||||||
|
\fINEXTHDR_HOP\fP,
|
||||||
|
\fINEXTHDR_ROUTING\fP,
|
||||||
|
\fINEXTHDR_FRAGMENT\fP,
|
||||||
|
\fINEXTHDR_AUTH\fP,
|
||||||
|
\fINEXTHDR_DEST\fP.
|
||||||
|
.PP
|
||||||
|
For fragmented packets, only the first fragment is processed and other fragments
|
||||||
|
are not touched.
|
@@ -50,26 +50,6 @@ static struct option geoip_opts[] = {
|
|||||||
};
|
};
|
||||||
|
|
||||||
#if __BYTE_ORDER == __LITTLE_ENDIAN
|
#if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
static void geoip_swap_le16(uint16_t *buf)
|
|
||||||
{
|
|
||||||
unsigned char *p = (void *)buf;
|
|
||||||
uint16_t n= p[0] + (p[1] << 8);
|
|
||||||
p[0] = (n >> 8) & 0xff;
|
|
||||||
p[1] = n & 0xff;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void geoip_swap_in6(struct in6_addr *in6)
|
|
||||||
{
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[0]);
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[1]);
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[2]);
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[3]);
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[4]);
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[5]);
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[6]);
|
|
||||||
geoip_swap_le16(&in6->s6_addr16[7]);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void geoip_swap_le32(uint32_t *buf)
|
static void geoip_swap_le32(uint32_t *buf)
|
||||||
{
|
{
|
||||||
unsigned char *p = (void *)buf;
|
unsigned char *p = (void *)buf;
|
||||||
@@ -79,6 +59,14 @@ static void geoip_swap_le32(uint32_t *buf)
|
|||||||
p[2] = (n >> 8) & 0xff;
|
p[2] = (n >> 8) & 0xff;
|
||||||
p[3] = n & 0xff;
|
p[3] = n & 0xff;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static void geoip_swap_in6(struct in6_addr *in6)
|
||||||
|
{
|
||||||
|
geoip_swap_le32(&in6->s6_addr32[0]);
|
||||||
|
geoip_swap_le32(&in6->s6_addr32[1]);
|
||||||
|
geoip_swap_le32(&in6->s6_addr32[2]);
|
||||||
|
geoip_swap_le32(&in6->s6_addr32[3]);
|
||||||
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
static void *
|
static void *
|
||||||
|
@@ -1125,7 +1125,6 @@ static int __init xt_pknock_mt_init(void)
|
|||||||
|
|
||||||
crypto.size = crypto_shash_digestsize(crypto.tfm);
|
crypto.size = crypto_shash_digestsize(crypto.tfm);
|
||||||
crypto.desc.tfm = crypto.tfm;
|
crypto.desc.tfm = crypto.tfm;
|
||||||
crypto.desc.flags = 0;
|
|
||||||
|
|
||||||
pde = proc_mkdir("xt_pknock", init_net.proc_net);
|
pde = proc_mkdir("xt_pknock", init_net.proc_net);
|
||||||
if (pde == NULL) {
|
if (pde == NULL) {
|
||||||
|
@@ -107,8 +107,13 @@ static void delude_send_reset(struct net *net, struct sk_buff *oldskb,
|
|||||||
|
|
||||||
addr_type = RTN_UNSPEC;
|
addr_type = RTN_UNSPEC;
|
||||||
#ifdef CONFIG_BRIDGE_NETFILTER
|
#ifdef CONFIG_BRIDGE_NETFILTER
|
||||||
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
|
||||||
|
if (hook != NF_INET_FORWARD || ((struct nf_bridge_info *)skb_ext_find(nskb, SKB_EXT_BRIDGE_NF) != NULL &&
|
||||||
|
((struct nf_bridge_info *)skb_ext_find(nskb, SKB_EXT_BRIDGE_NF))->physoutdev))
|
||||||
|
#else
|
||||||
if (hook != NF_INET_FORWARD || (nskb->nf_bridge != NULL &&
|
if (hook != NF_INET_FORWARD || (nskb->nf_bridge != NULL &&
|
||||||
nskb->nf_bridge->physoutdev))
|
nskb->nf_bridge->physoutdev))
|
||||||
|
#endif
|
||||||
#else
|
#else
|
||||||
if (hook != NF_INET_FORWARD)
|
if (hook != NF_INET_FORWARD)
|
||||||
#endif
|
#endif
|
||||||
|
@@ -96,7 +96,8 @@ dhcpmac_tg(struct sk_buff *skb, const struct xt_action_param *par)
|
|||||||
struct udphdr udpbuf, *udph;
|
struct udphdr udpbuf, *udph;
|
||||||
unsigned int i;
|
unsigned int i;
|
||||||
|
|
||||||
if (!skb_make_writable(skb, 0))
|
if (skb_ensure_writable(skb, ip_hdrlen(skb) + sizeof(udpbuf) +
|
||||||
|
sizeof(dhcpbuf)))
|
||||||
return NF_DROP;
|
return NF_DROP;
|
||||||
|
|
||||||
udph = skb_header_pointer(skb, ip_hdrlen(skb),
|
udph = skb_header_pointer(skb, ip_hdrlen(skb),
|
||||||
|
156
extensions/xt_PROTO.c
Normal file
156
extensions/xt_PROTO.c
Normal file
@@ -0,0 +1,156 @@
|
|||||||
|
/*
|
||||||
|
* Protocol modification target for IP tables
|
||||||
|
*
|
||||||
|
* 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/ip.h>
|
||||||
|
#include <linux/ipv6.h>
|
||||||
|
#include <net/ipv6.h>
|
||||||
|
#include <net/checksum.h>
|
||||||
|
#include <linux/netfilter/x_tables.h>
|
||||||
|
#include "xt_PROTO.h"
|
||||||
|
|
||||||
|
MODULE_AUTHOR("Shanker Wang <i@innull.com>");
|
||||||
|
MODULE_DESCRIPTION("Xtables: Protocol field modification target");
|
||||||
|
MODULE_LICENSE("GPL");
|
||||||
|
|
||||||
|
static unsigned int
|
||||||
|
proto_tg(struct sk_buff *skb, const struct xt_action_param *par)
|
||||||
|
{
|
||||||
|
struct iphdr *iph;
|
||||||
|
const struct xt_PROTO_info *info = par->targinfo;
|
||||||
|
int new_proto;
|
||||||
|
|
||||||
|
if (skb_ensure_writable(skb, skb->len))
|
||||||
|
return NF_DROP;
|
||||||
|
|
||||||
|
iph = ip_hdr(skb);
|
||||||
|
new_proto = iph->protocol;
|
||||||
|
if (info->mode & (1 << XT_PROTO_SET))
|
||||||
|
new_proto = info->proto;
|
||||||
|
if (new_proto != iph->protocol) {
|
||||||
|
csum_replace2(&iph->check, htons(iph->protocol & 0xff),
|
||||||
|
htons(new_proto & 0xff));
|
||||||
|
iph->protocol = new_proto;
|
||||||
|
}
|
||||||
|
|
||||||
|
return XT_CONTINUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static unsigned int
|
||||||
|
proto_tg6(struct sk_buff *skb, const struct xt_action_param *par)
|
||||||
|
{
|
||||||
|
struct ipv6hdr *ip6h;
|
||||||
|
const struct xt_PROTO_info *info = par->targinfo;
|
||||||
|
u8 *nexthdr;
|
||||||
|
unsigned int hdr_offset;
|
||||||
|
__be16 *fp;
|
||||||
|
|
||||||
|
if (skb_ensure_writable(skb, skb->len))
|
||||||
|
return NF_DROP;
|
||||||
|
|
||||||
|
ip6h = ipv6_hdr(skb);
|
||||||
|
nexthdr = &ip6h->nexthdr;
|
||||||
|
hdr_offset = sizeof(struct ipv6hdr);
|
||||||
|
|
||||||
|
for (;;) {
|
||||||
|
struct ipv6_opt_hdr _opthdr, *opthp;
|
||||||
|
unsigned int hdrlen;
|
||||||
|
unsigned short _frag_off;
|
||||||
|
if (!ipv6_ext_hdr(*nexthdr) || *nexthdr == NEXTHDR_NONE)
|
||||||
|
break;
|
||||||
|
opthp = skb_header_pointer(skb, skb_network_offset(skb) + hdr_offset, sizeof(_opthdr), &_opthdr);
|
||||||
|
if (!opthp)
|
||||||
|
return NF_DROP;
|
||||||
|
if (*nexthdr == NEXTHDR_FRAGMENT) {
|
||||||
|
if (info->mode & (1 << XT_PROTO_STOP_AT_FRAG))
|
||||||
|
break;
|
||||||
|
fp = skb_header_pointer(skb, skb_network_offset(skb) +
|
||||||
|
hdr_offset + offsetof(struct frag_hdr, frag_off),
|
||||||
|
sizeof(_frag_off), &_frag_off);
|
||||||
|
if (!fp)
|
||||||
|
return NF_DROP;
|
||||||
|
_frag_off = ntohs(*fp) & ~0x7;
|
||||||
|
if (_frag_off) { // if the packet is not the first fragment
|
||||||
|
if (!ipv6_ext_hdr(opthp->nexthdr) || opthp->nexthdr == NEXTHDR_NONE ||
|
||||||
|
(info->mode & (1 << XT_PROTO_STOP_AT_AUTH) && opthp->nexthdr == NEXTHDR_AUTH)) {
|
||||||
|
nexthdr = &((struct ipv6_opt_hdr *)(skb_network_header(skb) + hdr_offset))->nexthdr;
|
||||||
|
break;
|
||||||
|
} else {
|
||||||
|
return XT_CONTINUE;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
hdrlen = 8;
|
||||||
|
} else if(*nexthdr == NEXTHDR_AUTH) {
|
||||||
|
if (info->mode & (1 << XT_PROTO_STOP_AT_AUTH))
|
||||||
|
break;
|
||||||
|
hdrlen = (opthp->hdrlen + 2) << 2;
|
||||||
|
} else {
|
||||||
|
hdrlen = ipv6_optlen(opthp);
|
||||||
|
}
|
||||||
|
nexthdr = &((struct ipv6_opt_hdr *)(skb_network_header(skb) + hdr_offset))->nexthdr;
|
||||||
|
hdr_offset += hdrlen;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (info->mode & (1 << XT_PROTO_SET))
|
||||||
|
*nexthdr = info->proto;
|
||||||
|
return XT_CONTINUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int proto_tg_check(const struct xt_tgchk_param *par)
|
||||||
|
{
|
||||||
|
const struct xt_PROTO_info *info = par->targinfo;
|
||||||
|
|
||||||
|
if ((info->mode & (1 << XT_PROTO_SET)) == 0) {
|
||||||
|
pr_info_ratelimited("Did not specify any proto to set\n");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
if (par->family != NFPROTO_IPV6 && (info->mode & ((1 << XT_PROTO_STOP_AT_FRAG) | (1 << XT_PROTO_STOP_AT_AUTH))) != 0) {
|
||||||
|
pr_info_ratelimited("Must not specify stop-at-frag and stop-at-auth on non-ipv6 targets\n");
|
||||||
|
return -EPROTOTYPE;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct xt_target proto_tg_reg[] __read_mostly = {
|
||||||
|
{
|
||||||
|
.name = "PROTO",
|
||||||
|
.revision = 0,
|
||||||
|
.family = NFPROTO_IPV4,
|
||||||
|
.target = proto_tg,
|
||||||
|
.targetsize = sizeof(struct xt_PROTO_info),
|
||||||
|
.table = "mangle",
|
||||||
|
.checkentry = proto_tg_check,
|
||||||
|
.me = THIS_MODULE,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = "PROTO",
|
||||||
|
.revision = 0,
|
||||||
|
.family = NFPROTO_IPV6,
|
||||||
|
.target = proto_tg6,
|
||||||
|
.targetsize = sizeof(struct xt_PROTO_info),
|
||||||
|
.table = "mangle",
|
||||||
|
.checkentry = proto_tg_check,
|
||||||
|
.me = THIS_MODULE,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
static int __init proto_tg_init(void)
|
||||||
|
{
|
||||||
|
return xt_register_targets(proto_tg_reg, ARRAY_SIZE(proto_tg_reg));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void __exit proto_tg_exit(void)
|
||||||
|
{
|
||||||
|
xt_unregister_targets(proto_tg_reg, ARRAY_SIZE(proto_tg_reg));
|
||||||
|
}
|
||||||
|
|
||||||
|
module_init(proto_tg_init);
|
||||||
|
module_exit(proto_tg_exit);
|
||||||
|
MODULE_ALIAS("ipt_PROTO");
|
||||||
|
MODULE_ALIAS("ip6t_PROTO");
|
20
extensions/xt_PROTO.h
Normal file
20
extensions/xt_PROTO.h
Normal file
@@ -0,0 +1,20 @@
|
|||||||
|
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
||||||
|
/* Protocol modification module for IP tables */
|
||||||
|
|
||||||
|
#ifndef _XT_PROTO_H
|
||||||
|
#define _XT_PROTO_H
|
||||||
|
|
||||||
|
#include <linux/types.h>
|
||||||
|
|
||||||
|
enum {
|
||||||
|
XT_PROTO_SET = 0,
|
||||||
|
XT_PROTO_STOP_AT_FRAG = 1,
|
||||||
|
XT_PROTO_STOP_AT_AUTH = 2
|
||||||
|
};
|
||||||
|
|
||||||
|
struct xt_PROTO_info {
|
||||||
|
__u8 mode;
|
||||||
|
__u8 proto;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
@@ -114,7 +114,6 @@ static unsigned int sysrq_tg(const void *pdata, uint16_t len)
|
|||||||
}
|
}
|
||||||
|
|
||||||
desc.tfm = sysrq_tfm;
|
desc.tfm = sysrq_tfm;
|
||||||
desc.flags = 0;
|
|
||||||
ret = crypto_shash_init(&desc);
|
ret = crypto_shash_init(&desc);
|
||||||
if (ret != 0)
|
if (ret != 0)
|
||||||
goto hash_fail;
|
goto hash_fail;
|
||||||
|
@@ -205,7 +205,11 @@ static void tarpit_tcp4(struct net *net, struct sk_buff *oldskb,
|
|||||||
return;
|
return;
|
||||||
|
|
||||||
/* This packet will not be the same as the other: clear nf fields */
|
/* This packet will not be the same as the other: clear nf fields */
|
||||||
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
|
||||||
|
nf_reset_ct(nskb);
|
||||||
|
#else
|
||||||
nf_reset(nskb);
|
nf_reset(nskb);
|
||||||
|
#endif
|
||||||
skb_nfmark(nskb) = 0;
|
skb_nfmark(nskb) = 0;
|
||||||
skb_init_secmark(nskb);
|
skb_init_secmark(nskb);
|
||||||
skb_shinfo(nskb)->gso_size = 0;
|
skb_shinfo(nskb)->gso_size = 0;
|
||||||
@@ -249,8 +253,13 @@ static void tarpit_tcp4(struct net *net, struct sk_buff *oldskb,
|
|||||||
niph->id = ~oldhdr->id + 1;
|
niph->id = ~oldhdr->id + 1;
|
||||||
|
|
||||||
#ifdef CONFIG_BRIDGE_NETFILTER
|
#ifdef CONFIG_BRIDGE_NETFILTER
|
||||||
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
|
||||||
|
if (hook != NF_INET_FORWARD || ((struct nf_bridge_info *)skb_ext_find(nskb, SKB_EXT_BRIDGE_NF) != NULL &&
|
||||||
|
((struct nf_bridge_info *)skb_ext_find(nskb, SKB_EXT_BRIDGE_NF))->physoutdev))
|
||||||
|
#else
|
||||||
if (hook != NF_INET_FORWARD || (nskb->nf_bridge != NULL &&
|
if (hook != NF_INET_FORWARD || (nskb->nf_bridge != NULL &&
|
||||||
nskb->nf_bridge->physoutdev != NULL))
|
nskb->nf_bridge->physoutdev != NULL))
|
||||||
|
#endif
|
||||||
#else
|
#else
|
||||||
if (hook != NF_INET_FORWARD)
|
if (hook != NF_INET_FORWARD)
|
||||||
#endif
|
#endif
|
||||||
@@ -341,7 +350,11 @@ static void tarpit_tcp6(struct net *net, struct sk_buff *oldskb,
|
|||||||
}
|
}
|
||||||
|
|
||||||
/* This packet will not be the same as the other: clear nf fields */
|
/* This packet will not be the same as the other: clear nf fields */
|
||||||
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
|
||||||
|
nf_reset_ct(nskb);
|
||||||
|
#else
|
||||||
nf_reset(nskb);
|
nf_reset(nskb);
|
||||||
|
#endif
|
||||||
skb_nfmark(nskb) = 0;
|
skb_nfmark(nskb) = 0;
|
||||||
skb_init_secmark(nskb);
|
skb_init_secmark(nskb);
|
||||||
skb_shinfo(nskb)->gso_size = 0;
|
skb_shinfo(nskb)->gso_size = 0;
|
||||||
|
189
geoip/xt_geoip_build
Executable file → Normal file
189
geoip/xt_geoip_build
Executable file → Normal file
@@ -1,8 +1,9 @@
|
|||||||
#!/usr/bin/perl
|
#!/usr/bin/perl
|
||||||
#
|
#
|
||||||
# Converter for MaxMind (GeoLite2) CSV database to binary, for xt_geoip
|
# Converter for DBIP (Country Lite) CSV database to binary, for xt_geoip
|
||||||
# Copyright Jan Engelhardt, 2008-2011
|
# Copyright Jan Engelhardt, 2008-2011
|
||||||
# Copyright Philip Prindeville, 2018
|
# Copyright Philip Prindeville, 2018
|
||||||
|
# Copyright Arjen de Korte, 2020
|
||||||
#
|
#
|
||||||
use Getopt::Long;
|
use Getopt::Long;
|
||||||
use Net::CIDR::Lite;
|
use Net::CIDR::Lite;
|
||||||
@@ -34,136 +35,33 @@ if (!-d $target_dir) {
|
|||||||
exit 1;
|
exit 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
my %countryId;
|
|
||||||
my %countryName;
|
|
||||||
&loadCountries();
|
|
||||||
&dump(&collect());
|
&dump(&collect());
|
||||||
|
|
||||||
sub loadCountries
|
|
||||||
{
|
|
||||||
sub id; sub cc; sub long; sub ct; sub cn;
|
|
||||||
|
|
||||||
%countryId = ();
|
|
||||||
%countryName = ();
|
|
||||||
|
|
||||||
my $file = "$source_dir/GeoLite2-Country-Locations-en.csv";
|
|
||||||
open(my $fh, '<', $file) || die "Couldn't open list country names\n";
|
|
||||||
|
|
||||||
# first line is headers
|
|
||||||
my $row = $csv->getline($fh);
|
|
||||||
|
|
||||||
my %header = map { ($row->[$_], $_); } (0..$#{$row});
|
|
||||||
|
|
||||||
my %pairs = (
|
|
||||||
country_iso_code => 'ISO Country Code',
|
|
||||||
geoname_id => 'ID',
|
|
||||||
country_name => 'Country Name',
|
|
||||||
continent_code => 'Continent Code',
|
|
||||||
continent_name => 'Continent Name',
|
|
||||||
);
|
|
||||||
|
|
||||||
# verify that the columns we need are present
|
|
||||||
map { die "Table has no $pairs{$_} column\n" unless (exists $header{$_}); } keys %pairs;
|
|
||||||
|
|
||||||
my %remapping = (
|
|
||||||
id => 'geoname_id',
|
|
||||||
cc => 'country_iso_code',
|
|
||||||
long => 'country_name',
|
|
||||||
ct => 'continent_code',
|
|
||||||
cn => 'continent_name',
|
|
||||||
);
|
|
||||||
|
|
||||||
# now create a function which returns the value of that column #
|
|
||||||
map { eval "sub $_ () { \$header{\$remapping{$_}}; }" ; } keys %remapping;
|
|
||||||
|
|
||||||
while (my $row = $csv->getline($fh)) {
|
|
||||||
if ($row->[cc] eq '' && $row->[long] eq '') {
|
|
||||||
$countryId{$row->[id]} = $row->[ct];
|
|
||||||
$countryName{$row->[ct]} = $row->[cn];
|
|
||||||
} else {
|
|
||||||
$countryId{$row->[id]} = $row->[cc];
|
|
||||||
$countryName{$row->[cc]} = $row->[long];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
$countryName{A1} = 'Anonymous Proxy';
|
|
||||||
$countryName{A2} = 'Satellite Provider';
|
|
||||||
$countryName{O1} = 'Other Country';
|
|
||||||
|
|
||||||
close($fh);
|
|
||||||
|
|
||||||
# clean up the namespace
|
|
||||||
undef &id; undef &cc; undef &long; undef &ct; undef &cn;
|
|
||||||
}
|
|
||||||
|
|
||||||
sub lookupCountry
|
|
||||||
{
|
|
||||||
my ($id, $rid, $proxy, $sat) = @_;
|
|
||||||
|
|
||||||
if ($proxy) {
|
|
||||||
return 'A1';
|
|
||||||
} elsif ($sat) {
|
|
||||||
return 'A2';
|
|
||||||
}
|
|
||||||
$id ||= $rid;
|
|
||||||
if ($id eq '') {
|
|
||||||
return 'O1';
|
|
||||||
}
|
|
||||||
die "Unknown id: $id line $.\n" unless (exists $countryId{$id});
|
|
||||||
return $countryId{$id};
|
|
||||||
}
|
|
||||||
|
|
||||||
sub collect
|
sub collect
|
||||||
{
|
{
|
||||||
my ($file, $fh, $row);
|
my ($file, $fh, $row);
|
||||||
my (%country, %header);
|
my (%country);
|
||||||
|
|
||||||
sub net; sub id; sub rid; sub proxy; sub sat;
|
$file = "$source_dir/dbip-country-lite.csv";
|
||||||
|
open($fh, '<', $file) || die "Can't open DBIP database\n";
|
||||||
my %pairs = (
|
|
||||||
network => 'Network',
|
|
||||||
registered_country_geoname_id => 'Registered Country ID',
|
|
||||||
geoname_id => 'Country ID',
|
|
||||||
is_anonymous_proxy => 'Anonymous Proxy',
|
|
||||||
is_satellite_provider => 'Satellite',
|
|
||||||
);
|
|
||||||
|
|
||||||
foreach (sort keys %countryName) {
|
|
||||||
$country{$_} = {
|
|
||||||
name => $countryName{$_},
|
|
||||||
pool_v4 => Net::CIDR::Lite->new(),
|
|
||||||
pool_v6 => Net::CIDR::Lite->new(),
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
$file = "$source_dir/GeoLite2-Country-Blocks-IPv4.csv";
|
|
||||||
open($fh, '<', $file) || die "Can't open IPv4 database\n";
|
|
||||||
|
|
||||||
# first line is headers
|
|
||||||
$row = $csv->getline($fh);
|
|
||||||
|
|
||||||
%header = map { ($row->[$_], $_); } (0..$#{$row});
|
|
||||||
|
|
||||||
# verify that the columns we need are present
|
|
||||||
map { die "Table has no %pairs{$_} column\n" unless (exists $header{$_}); } keys %pairs;
|
|
||||||
|
|
||||||
my %remapping = (
|
|
||||||
net => 'network',
|
|
||||||
id => 'geoname_id',
|
|
||||||
rid => 'registered_country_geoname_id',
|
|
||||||
proxy => 'is_anonymous_proxy',
|
|
||||||
sat => 'is_satellite_provider',
|
|
||||||
);
|
|
||||||
|
|
||||||
# now create a function which returns the value of that column #
|
|
||||||
map { eval "sub $_ () { \$header{\$remapping{$_}}; }" ; } keys %remapping;
|
|
||||||
|
|
||||||
while ($row = $csv->getline($fh)) {
|
while ($row = $csv->getline($fh)) {
|
||||||
my ($cc, $cidr);
|
my ($cc, $range);
|
||||||
|
|
||||||
$cc = lookupCountry($row->[id], $row->[rid], $row->[proxy], $row->[sat]);
|
$cc = $row->[2];
|
||||||
$cidr = $row->[net];
|
$range = $row->[0] . "-" . $row->[1];
|
||||||
$country{$cc}->{pool_v4}->add($cidr);
|
|
||||||
|
if (!exists($country{$cc})) {
|
||||||
|
$country{$cc} = { pool_v4 => Net::CIDR::Lite->new(), pool_v6 => Net::CIDR::Lite->new() };
|
||||||
|
}
|
||||||
|
|
||||||
|
if (index($range, '.') > 0) {
|
||||||
|
$country{$cc}->{pool_v4}->add_range($range);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (index($range, ':') > 0) {
|
||||||
|
$country{$cc}->{pool_v6}->add_range($range);
|
||||||
|
}
|
||||||
|
|
||||||
if ($. % 4096 == 0) {
|
if ($. % 4096 == 0) {
|
||||||
print STDERR "\r\e[2K$. entries";
|
print STDERR "\r\e[2K$. entries";
|
||||||
@@ -174,43 +72,6 @@ sub collect
|
|||||||
|
|
||||||
close($fh);
|
close($fh);
|
||||||
|
|
||||||
# clean up the namespace
|
|
||||||
undef &net; undef &id; undef &rid; undef &proxy; undef &sat;
|
|
||||||
|
|
||||||
$file = "$source_dir/GeoLite2-Country-Blocks-IPv6.csv";
|
|
||||||
open($fh, '<', $file) || die "Can't open IPv6 database\n";
|
|
||||||
|
|
||||||
# first line is headers
|
|
||||||
$row = $csv->getline($fh);
|
|
||||||
|
|
||||||
%header = map { ($row->[$_], $_); } (0..$#{$row});
|
|
||||||
|
|
||||||
# verify that the columns we need are present
|
|
||||||
map { die "Table has no %pairs{$_} column\n" unless (exists $header{$_}); } keys %pairs;
|
|
||||||
|
|
||||||
# unlikely the IPv6 table has different columns, but just to be sure
|
|
||||||
# create a function which returns the value of that column #
|
|
||||||
map { eval "sub $_ () { \$header{\$remapping{$_}}; }" ; } keys %remapping;
|
|
||||||
|
|
||||||
while ($row = $csv->getline($fh)) {
|
|
||||||
my ($cc, $cidr);
|
|
||||||
|
|
||||||
$cc = lookupCountry($row->[id], $row->[rid], $row->[proxy], $row->[sat]);
|
|
||||||
$cidr = $row->[net];
|
|
||||||
$country{$cc}->{pool_v6}->add($cidr);
|
|
||||||
|
|
||||||
if ($. % 4096 == 0) {
|
|
||||||
print STDERR "\r\e[2K$. entries";
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
print STDERR "\r\e[2K$. entries total\n";
|
|
||||||
|
|
||||||
close($fh);
|
|
||||||
|
|
||||||
# clean up the namespace
|
|
||||||
undef &net; undef &id; undef &rid; undef &proxy; undef &sat;
|
|
||||||
|
|
||||||
return \%country;
|
return \%country;
|
||||||
}
|
}
|
||||||
|
|
||||||
@@ -230,22 +91,22 @@ sub dump_one
|
|||||||
|
|
||||||
@ranges = $country->{pool_v4}->list_range();
|
@ranges = $country->{pool_v4}->list_range();
|
||||||
|
|
||||||
writeCountry($iso_code, $country->{name}, AF_INET, @ranges);
|
writeCountry($iso_code, AF_INET, @ranges);
|
||||||
|
|
||||||
@ranges = $country->{pool_v6}->list_range();
|
@ranges = $country->{pool_v6}->list_range();
|
||||||
|
|
||||||
writeCountry($iso_code, $country->{name}, AF_INET6, @ranges);
|
writeCountry($iso_code, AF_INET6, @ranges);
|
||||||
}
|
}
|
||||||
|
|
||||||
sub writeCountry
|
sub writeCountry
|
||||||
{
|
{
|
||||||
my ($iso_code, $name, $family, @ranges) = @_;
|
my ($iso_code, $family, @ranges) = @_;
|
||||||
my $fh;
|
my $fh;
|
||||||
|
|
||||||
printf "%5u IPv%s ranges for %s %s\n",
|
printf "%5u IPv%s ranges for %s\n",
|
||||||
scalar(@ranges),
|
scalar(@ranges),
|
||||||
($family == AF_INET ? '4' : '6'),
|
($family == AF_INET ? '4' : '6'),
|
||||||
$iso_code, $name;
|
$iso_code;
|
||||||
|
|
||||||
my $file = "$target_dir/".uc($iso_code).".iv".($family == AF_INET ? '4' : '6');
|
my $file = "$target_dir/".uc($iso_code).".iv".($family == AF_INET ? '4' : '6');
|
||||||
if (!open($fh, '>', $file)) {
|
if (!open($fh, '>', $file)) {
|
||||||
|
1
mconfig
1
mconfig
@@ -8,6 +8,7 @@ build_DNETMAP=m
|
|||||||
build_ECHO=m
|
build_ECHO=m
|
||||||
build_IPMARK=m
|
build_IPMARK=m
|
||||||
build_LOGMARK=m
|
build_LOGMARK=m
|
||||||
|
build_PROTO=m
|
||||||
build_SYSRQ=m
|
build_SYSRQ=m
|
||||||
build_TARPIT=m
|
build_TARPIT=m
|
||||||
build_condition=m
|
build_condition=m
|
||||||
|
@@ -1,4 +1,4 @@
|
|||||||
.TH xtables-addons 8 "" "" "v3.3 (2019-03-07)"
|
.TH xtables-addons 8 "" "" "v3.8 (2020-02-01)"
|
||||||
.SH Name
|
.SH Name
|
||||||
Xtables-addons \(em additional extensions for iptables, ip6tables, etc.
|
Xtables-addons \(em additional extensions for iptables, ip6tables, etc.
|
||||||
.SH Targets
|
.SH Targets
|
||||||
|
Reference in New Issue
Block a user