author | Florian Westphal <fw@strlen.de> |
Thu, 09 Apr 2009 12:07:21 +0200 | |
changeset 2 | d1f6d8b6f81c |
parent 0 | aa628870c1d3 |
permissions | -rw-r--r-- |
0
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Port of Linux 2.6.28 for use with network simulation cradle.
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/* |
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* ebtables |
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* |
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* Authors: |
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* Bart De Schuymer <bdschuym@pandora.be> |
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* |
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* ebtables.c,v 2.0, April, 2002 |
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* |
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* This code is stongly inspired on the iptables code which is |
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* Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling |
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Port of Linux 2.6.28 for use with network simulation cradle.
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*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
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#ifndef __LINUX_BRIDGE_EFF_H |
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#define __LINUX_BRIDGE_EFF_H |
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#include <linux/if.h> |
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#include <linux/netfilter_bridge.h> |
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#include <linux/if_ether.h> |
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|
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#define EBT_TABLE_MAXNAMELEN 32 |
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#define EBT_CHAIN_MAXNAMELEN EBT_TABLE_MAXNAMELEN |
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#define EBT_FUNCTION_MAXNAMELEN EBT_TABLE_MAXNAMELEN |
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|
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/* verdicts >0 are "branches" */ |
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#define EBT_ACCEPT -1 |
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#define EBT_DROP -2 |
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#define EBT_CONTINUE -3 |
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#define EBT_RETURN -4 |
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#define NUM_STANDARD_TARGETS 4 |
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/* ebtables target modules store the verdict inside an int. We can |
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* reclaim a part of this int for backwards compatible extensions. |
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* The 4 lsb are more than enough to store the verdict. */ |
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#define EBT_VERDICT_BITS 0x0000000F |
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|
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struct xt_match; |
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struct xt_target; |
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|
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struct ebt_counter |
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{ |
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uint64_t pcnt; |
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uint64_t bcnt; |
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}; |
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|
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struct ebt_replace |
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{ |
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char name[EBT_TABLE_MAXNAMELEN]; |
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unsigned int valid_hooks; |
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/* nr of rules in the table */ |
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unsigned int nentries; |
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/* total size of the entries */ |
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unsigned int entries_size; |
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/* start of the chains */ |
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struct ebt_entries __user *hook_entry[NF_BR_NUMHOOKS]; |
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/* nr of counters userspace expects back */ |
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unsigned int num_counters; |
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/* where the kernel will put the old counters */ |
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struct ebt_counter __user *counters; |
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char __user *entries; |
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}; |
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|
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struct ebt_replace_kernel |
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{ |
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char name[EBT_TABLE_MAXNAMELEN]; |
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unsigned int valid_hooks; |
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/* nr of rules in the table */ |
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unsigned int nentries; |
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/* total size of the entries */ |
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unsigned int entries_size; |
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/* start of the chains */ |
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struct ebt_entries *hook_entry[NF_BR_NUMHOOKS]; |
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/* nr of counters userspace expects back */ |
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unsigned int num_counters; |
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/* where the kernel will put the old counters */ |
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struct ebt_counter *counters; |
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char *entries; |
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}; |
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|
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struct ebt_entries { |
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/* this field is always set to zero |
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* See EBT_ENTRY_OR_ENTRIES. |
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* Must be same size as ebt_entry.bitmask */ |
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unsigned int distinguisher; |
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/* the chain name */ |
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char name[EBT_CHAIN_MAXNAMELEN]; |
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/* counter offset for this chain */ |
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unsigned int counter_offset; |
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/* one standard (accept, drop, return) per hook */ |
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int policy; |
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/* nr. of entries */ |
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unsigned int nentries; |
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/* entry list */ |
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char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); |
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}; |
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/* used for the bitmask of struct ebt_entry */ |
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|
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/* This is a hack to make a difference between an ebt_entry struct and an |
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* ebt_entries struct when traversing the entries from start to end. |
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* Using this simplifies the code alot, while still being able to use |
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* ebt_entries. |
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* Contrary, iptables doesn't use something like ebt_entries and therefore uses |
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* different techniques for naming the policy and such. So, iptables doesn't |
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* need a hack like this. |
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*/ |
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#define EBT_ENTRY_OR_ENTRIES 0x01 |
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/* these are the normal masks */ |
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#define EBT_NOPROTO 0x02 |
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#define EBT_802_3 0x04 |
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#define EBT_SOURCEMAC 0x08 |
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#define EBT_DESTMAC 0x10 |
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#define EBT_F_MASK (EBT_NOPROTO | EBT_802_3 | EBT_SOURCEMAC | EBT_DESTMAC \ |
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| EBT_ENTRY_OR_ENTRIES) |
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|
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#define EBT_IPROTO 0x01 |
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114 |
#define EBT_IIN 0x02 |
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115 |
#define EBT_IOUT 0x04 |
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116 |
#define EBT_ISOURCE 0x8 |
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#define EBT_IDEST 0x10 |
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118 |
#define EBT_ILOGICALIN 0x20 |
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#define EBT_ILOGICALOUT 0x40 |
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#define EBT_INV_MASK (EBT_IPROTO | EBT_IIN | EBT_IOUT | EBT_ILOGICALIN \ |
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121 |
| EBT_ILOGICALOUT | EBT_ISOURCE | EBT_IDEST) |
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122 |
|
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123 |
struct ebt_entry_match |
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124 |
{ |
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union { |
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126 |
char name[EBT_FUNCTION_MAXNAMELEN]; |
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struct xt_match *match; |
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128 |
} u; |
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129 |
/* size of data */ |
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130 |
unsigned int match_size; |
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unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); |
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132 |
}; |
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133 |
|
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134 |
struct ebt_entry_watcher |
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135 |
{ |
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136 |
union { |
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137 |
char name[EBT_FUNCTION_MAXNAMELEN]; |
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138 |
struct xt_target *watcher; |
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139 |
} u; |
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140 |
/* size of data */ |
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141 |
unsigned int watcher_size; |
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142 |
unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); |
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143 |
}; |
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144 |
|
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145 |
struct ebt_entry_target |
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146 |
{ |
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147 |
union { |
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148 |
char name[EBT_FUNCTION_MAXNAMELEN]; |
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149 |
struct xt_target *target; |
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150 |
} u; |
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151 |
/* size of data */ |
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152 |
unsigned int target_size; |
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153 |
unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); |
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154 |
}; |
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155 |
|
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156 |
#define EBT_STANDARD_TARGET "standard" |
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157 |
struct ebt_standard_target |
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158 |
{ |
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159 |
struct ebt_entry_target target; |
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160 |
int verdict; |
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161 |
}; |
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162 |
|
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163 |
/* one entry */ |
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164 |
struct ebt_entry { |
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165 |
/* this needs to be the first field */ |
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166 |
unsigned int bitmask; |
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167 |
unsigned int invflags; |
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168 |
__be16 ethproto; |
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169 |
/* the physical in-dev */ |
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170 |
char in[IFNAMSIZ]; |
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171 |
/* the logical in-dev */ |
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172 |
char logical_in[IFNAMSIZ]; |
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173 |
/* the physical out-dev */ |
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174 |
char out[IFNAMSIZ]; |
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|
175 |
/* the logical out-dev */ |
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|
176 |
char logical_out[IFNAMSIZ]; |
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|
177 |
unsigned char sourcemac[ETH_ALEN]; |
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|
178 |
unsigned char sourcemsk[ETH_ALEN]; |
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|
179 |
unsigned char destmac[ETH_ALEN]; |
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|
180 |
unsigned char destmsk[ETH_ALEN]; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
181 |
/* sizeof ebt_entry + matches */ |
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|
182 |
unsigned int watchers_offset; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
183 |
/* sizeof ebt_entry + matches + watchers */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
184 |
unsigned int target_offset; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
185 |
/* sizeof ebt_entry + matches + watchers + target */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
186 |
unsigned int next_offset; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
187 |
unsigned char elems[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); |
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|
188 |
}; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
189 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
190 |
/* {g,s}etsockopt numbers */ |
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|
191 |
#define EBT_BASE_CTL 128 |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
192 |
|
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|
193 |
#define EBT_SO_SET_ENTRIES (EBT_BASE_CTL) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
194 |
#define EBT_SO_SET_COUNTERS (EBT_SO_SET_ENTRIES+1) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
195 |
#define EBT_SO_SET_MAX (EBT_SO_SET_COUNTERS+1) |
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196 |
|
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|
197 |
#define EBT_SO_GET_INFO (EBT_BASE_CTL) |
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|
198 |
#define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO+1) |
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199 |
#define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES+1) |
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|
200 |
#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO+1) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
201 |
#define EBT_SO_GET_MAX (EBT_SO_GET_INIT_ENTRIES+1) |
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|
202 |
|
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|
203 |
#ifdef __KERNEL__ |
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|
204 |
|
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|
205 |
/* return values for match() functions */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
206 |
#define EBT_MATCH 0 |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
207 |
#define EBT_NOMATCH 1 |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
208 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
209 |
struct ebt_match |
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Port of Linux 2.6.28 for use with network simulation cradle.
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210 |
{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
211 |
struct list_head list; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
212 |
const char name[EBT_FUNCTION_MAXNAMELEN]; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
213 |
bool (*match)(const struct sk_buff *skb, const struct net_device *in, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
214 |
const struct net_device *out, const struct xt_match *match, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
215 |
const void *matchinfo, int offset, unsigned int protoff, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
216 |
bool *hotdrop); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
217 |
bool (*checkentry)(const char *table, const void *entry, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
218 |
const struct xt_match *match, void *matchinfo, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
219 |
unsigned int hook_mask); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
220 |
void (*destroy)(const struct xt_match *match, void *matchinfo); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
221 |
unsigned int matchsize; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
222 |
u_int8_t revision; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
223 |
u_int8_t family; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
224 |
struct module *me; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
225 |
}; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
226 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
227 |
struct ebt_watcher |
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228 |
{ |
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struct list_head list; |
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const char name[EBT_FUNCTION_MAXNAMELEN]; |
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unsigned int (*target)(struct sk_buff *skb, |
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const struct net_device *in, const struct net_device *out, |
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unsigned int hook_num, const struct xt_target *target, |
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const void *targinfo); |
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bool (*checkentry)(const char *table, const void *entry, |
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const struct xt_target *target, void *targinfo, |
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unsigned int hook_mask); |
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void (*destroy)(const struct xt_target *target, void *targinfo); |
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unsigned int targetsize; |
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u_int8_t revision; |
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u_int8_t family; |
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struct module *me; |
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243 |
}; |
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244 |
|
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245 |
struct ebt_target |
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246 |
{ |
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struct list_head list; |
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const char name[EBT_FUNCTION_MAXNAMELEN]; |
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/* returns one of the standard EBT_* verdicts */ |
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unsigned int (*target)(struct sk_buff *skb, |
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const struct net_device *in, const struct net_device *out, |
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unsigned int hook_num, const struct xt_target *target, |
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const void *targinfo); |
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bool (*checkentry)(const char *table, const void *entry, |
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const struct xt_target *target, void *targinfo, |
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unsigned int hook_mask); |
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void (*destroy)(const struct xt_target *target, void *targinfo); |
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unsigned int targetsize; |
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u_int8_t revision; |
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u_int8_t family; |
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261 |
struct module *me; |
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262 |
}; |
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263 |
|
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/* used for jumping from and into user defined chains (udc) */ |
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265 |
struct ebt_chainstack |
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266 |
{ |
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267 |
struct ebt_entries *chaininfo; /* pointer to chain data */ |
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268 |
struct ebt_entry *e; /* pointer to entry data */ |
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unsigned int n; /* n'th entry */ |
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270 |
}; |
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271 |
|
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272 |
struct ebt_table_info |
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273 |
{ |
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274 |
/* total size of the entries */ |
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275 |
unsigned int entries_size; |
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276 |
unsigned int nentries; |
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/* pointers to the start of the chains */ |
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278 |
struct ebt_entries *hook_entry[NF_BR_NUMHOOKS]; |
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279 |
/* room to maintain the stack used for jumping from and into udc */ |
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280 |
struct ebt_chainstack **chainstack; |
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281 |
char *entries; |
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282 |
struct ebt_counter counters[0] ____cacheline_aligned; |
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283 |
}; |
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284 |
|
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285 |
struct ebt_table |
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286 |
{ |
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287 |
struct list_head list; |
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|
288 |
char name[EBT_TABLE_MAXNAMELEN]; |
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289 |
struct ebt_replace_kernel *table; |
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290 |
unsigned int valid_hooks; |
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291 |
rwlock_t lock; |
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292 |
/* e.g. could be the table explicitly only allows certain |
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293 |
* matches, targets, ... 0 == let it in */ |
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294 |
int (*check)(const struct ebt_table_info *info, |
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295 |
unsigned int valid_hooks); |
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296 |
/* the data used by the kernel */ |
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297 |
struct ebt_table_info *private; |
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298 |
struct module *me; |
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|
299 |
}; |
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300 |
|
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301 |
#define EBT_ALIGN(s) (((s) + (__alignof__(struct ebt_replace)-1)) & \ |
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|
302 |
~(__alignof__(struct ebt_replace)-1)) |
2 | 303 |
extern struct ebt_table *ebt_register_table(struct net *net, |
304 |
struct ebt_table *table); |
|
0
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
305 |
extern void ebt_unregister_table(struct ebt_table *table); |
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|
306 |
extern unsigned int ebt_do_table(unsigned int hook, struct sk_buff *skb, |
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307 |
const struct net_device *in, const struct net_device *out, |
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|
308 |
struct ebt_table *table); |
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|
309 |
|
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|
310 |
/* Used in the kernel match() functions */ |
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|
311 |
#define FWINV(bool,invflg) ((bool) ^ !!(info->invflags & invflg)) |
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|
312 |
/* True if the hook mask denotes that the rule is in a base chain, |
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313 |
* used in the check() functions */ |
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|
314 |
#define BASE_CHAIN (par->hook_mask & (1 << NF_BR_NUMHOOKS)) |
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|
315 |
/* Clear the bit in the hook mask that tells if the rule is on a base chain */ |
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|
316 |
#define CLEAR_BASE_CHAIN_BIT (par->hook_mask &= ~(1 << NF_BR_NUMHOOKS)) |
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317 |
/* True if the target is not a standard target */ |
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318 |
#define INVALID_TARGET (info->target < -NUM_STANDARD_TARGETS || info->target >= 0) |
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319 |
|
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320 |
#endif /* __KERNEL__ */ |
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|
321 |
|
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|
322 |
/* blatently stolen from ip_tables.h |
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|
323 |
* fn returns 0 to continue iteration */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
324 |
#define EBT_MATCH_ITERATE(e, fn, args...) \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
325 |
({ \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
326 |
unsigned int __i; \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
327 |
int __ret = 0; \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
328 |
struct ebt_entry_match *__match; \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
329 |
\ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
330 |
for (__i = sizeof(struct ebt_entry); \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
331 |
__i < (e)->watchers_offset; \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
332 |
__i += __match->match_size + \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
333 |
sizeof(struct ebt_entry_match)) { \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
334 |
__match = (void *)(e) + __i; \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
335 |
\ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
336 |
__ret = fn(__match , ## args); \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
337 |
if (__ret != 0) \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
338 |
break; \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
339 |
} \ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
340 |
if (__ret == 0) { \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
341 |
if (__i != (e)->watchers_offset) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
342 |
__ret = -EINVAL; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
343 |
} \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
344 |
__ret; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
345 |
}) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
346 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
347 |
#define EBT_WATCHER_ITERATE(e, fn, args...) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
348 |
({ \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
349 |
unsigned int __i; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
350 |
int __ret = 0; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
351 |
struct ebt_entry_watcher *__watcher; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
352 |
\ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
353 |
for (__i = e->watchers_offset; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
354 |
__i < (e)->target_offset; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
355 |
__i += __watcher->watcher_size + \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
356 |
sizeof(struct ebt_entry_watcher)) { \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
357 |
__watcher = (void *)(e) + __i; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
358 |
\ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
359 |
__ret = fn(__watcher , ## args); \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
360 |
if (__ret != 0) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
361 |
break; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
362 |
} \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
363 |
if (__ret == 0) { \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
364 |
if (__i != (e)->target_offset) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
365 |
__ret = -EINVAL; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
366 |
} \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
367 |
__ret; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
368 |
}) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
369 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
370 |
#define EBT_ENTRY_ITERATE(entries, size, fn, args...) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
371 |
({ \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
372 |
unsigned int __i; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
373 |
int __ret = 0; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
374 |
struct ebt_entry *__entry; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
375 |
\ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
376 |
for (__i = 0; __i < (size);) { \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
377 |
__entry = (void *)(entries) + __i; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
378 |
__ret = fn(__entry , ## args); \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
379 |
if (__ret != 0) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
380 |
break; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
381 |
if (__entry->bitmask != 0) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
382 |
__i += __entry->next_offset; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
383 |
else \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
384 |
__i += sizeof(struct ebt_entries); \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
385 |
} \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
386 |
if (__ret == 0) { \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
387 |
if (__i != (size)) \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
388 |
__ret = -EINVAL; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
389 |
} \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
390 |
__ret; \ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
391 |
}) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
392 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
393 |
#endif |