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authorPablo Neira Ayuso <pablo@netfilter.org>2014-10-09 20:11:16 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2014-11-24 11:35:34 +0100
commit902e92ceedba96d3241fa8ff701c061cd53a197d (patch)
tree9c45d7fcb97a3f507c727b31d77e7311cab1d74d /include/linux
parentda871de2a6efb576b6378a66222c0871f4282e96 (diff)
ebtables-compat: use ebtables_command_state in bootstrap code
And introduce fake ebt_entry. This gets the code in sync in other existing compat tools. This will likely allow to consolidate common infrastructure. This code is still quite experimental. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/netfilter_bridge/ebtables.h276
1 files changed, 0 insertions, 276 deletions
diff --git a/include/linux/netfilter_bridge/ebtables.h b/include/linux/netfilter_bridge/ebtables.h
deleted file mode 100644
index f7ed1dcf..00000000
--- a/include/linux/netfilter_bridge/ebtables.h
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- * ebtables
- *
- * Authors:
- * Bart De Schuymer <bdschuym@pandora.be>
- *
- * ebtables.c,v 2.0, April, 2002
- *
- * This code is stongly inspired on the iptables code which is
- * Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling
- */
-
-/* Local copy of the kernel file, needed for Sparc64 support */
-#ifndef __LINUX_BRIDGE_EFF_H
-#define __LINUX_BRIDGE_EFF_H
-#include <net/if.h>
-#include <linux/netfilter_bridge.h>
-#include <linux/if_ether.h>
-
-#define EBT_TABLE_MAXNAMELEN 32
-#define EBT_CHAIN_MAXNAMELEN EBT_TABLE_MAXNAMELEN
-#define EBT_FUNCTION_MAXNAMELEN EBT_TABLE_MAXNAMELEN
-
-/* verdicts >0 are "branches" */
-#define EBT_ACCEPT -1
-#define EBT_DROP -2
-#define EBT_CONTINUE -3
-#define EBT_RETURN -4
-#define NUM_STANDARD_TARGETS 4
-/* ebtables target modules store the verdict inside an int. We can
- * reclaim a part of this int for backwards compatible extensions.
- * The 4 lsb are more than enough to store the verdict. */
-#define EBT_VERDICT_BITS 0x0000000F
-
-struct ebt_counter
-{
- uint64_t pcnt;
- uint64_t bcnt;
-};
-
-struct ebt_replace
-{
- char name[EBT_TABLE_MAXNAMELEN];
- unsigned int valid_hooks;
- /* nr of rules in the table */
- unsigned int nentries;
- /* total size of the entries */
- unsigned int entries_size;
- /* start of the chains */
-#ifdef KERNEL_64_USERSPACE_32
- uint64_t hook_entry[NF_BR_NUMHOOKS];
-#else
- struct ebt_entries *hook_entry[NF_BR_NUMHOOKS];
-#endif
- /* nr of counters userspace expects back */
- unsigned int num_counters;
- /* where the kernel will put the old counters */
-#ifdef KERNEL_64_USERSPACE_32
- uint64_t counters;
- uint64_t entries;
-#else
- struct ebt_counter *counters;
- char *entries;
-#endif
-};
-
-struct ebt_entries {
- /* this field is always set to zero
- * See EBT_ENTRY_OR_ENTRIES.
- * Must be same size as ebt_entry.bitmask */
- unsigned int distinguisher;
- /* the chain name */
- char name[EBT_CHAIN_MAXNAMELEN];
- /* counter offset for this chain */
- unsigned int counter_offset;
- /* one standard (accept, drop, return) per hook */
- int policy;
- /* nr. of entries */
- unsigned int nentries;
- /* entry list */
- char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-/* used for the bitmask of struct ebt_entry */
-
-/* This is a hack to make a difference between an ebt_entry struct and an
- * ebt_entries struct when traversing the entries from start to end.
- * Using this simplifies the code alot, while still being able to use
- * ebt_entries.
- * Contrary, iptables doesn't use something like ebt_entries and therefore uses
- * different techniques for naming the policy and such. So, iptables doesn't
- * need a hack like this.
- */
-#define EBT_ENTRY_OR_ENTRIES 0x01
-/* these are the normal masks */
-#define EBT_NOPROTO 0x02
-#define EBT_802_3 0x04
-#define EBT_SOURCEMAC 0x08
-#define EBT_DESTMAC 0x10
-#define EBT_F_MASK (EBT_NOPROTO | EBT_802_3 | EBT_SOURCEMAC | EBT_DESTMAC \
- | EBT_ENTRY_OR_ENTRIES)
-
-#define EBT_IPROTO 0x01
-#define EBT_IIN 0x02
-#define EBT_IOUT 0x04
-#define EBT_ISOURCE 0x8
-#define EBT_IDEST 0x10
-#define EBT_ILOGICALIN 0x20
-#define EBT_ILOGICALOUT 0x40
-#define EBT_INV_MASK (EBT_IPROTO | EBT_IIN | EBT_IOUT | EBT_ILOGICALIN \
- | EBT_ILOGICALOUT | EBT_ISOURCE | EBT_IDEST)
-
-struct ebt_entry_match
-{
- union {
- char name[EBT_FUNCTION_MAXNAMELEN];
- struct ebt_match *match;
- } u;
- /* size of data */
- unsigned int match_size;
-#ifdef KERNEL_64_USERSPACE_32
- unsigned int pad;
-#endif
- unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-struct ebt_entry_watcher
-{
- union {
- char name[EBT_FUNCTION_MAXNAMELEN];
- struct ebt_watcher *watcher;
- } u;
- /* size of data */
- unsigned int watcher_size;
-#ifdef KERNEL_64_USERSPACE_32
- unsigned int pad;
-#endif
- unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-struct ebt_entry_target
-{
- union {
- char name[EBT_FUNCTION_MAXNAMELEN];
- struct ebt_target *target;
- } u;
- /* size of data */
- unsigned int target_size;
-#ifdef KERNEL_64_USERSPACE_32
- unsigned int pad;
-#endif
- unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-#define EBT_STANDARD_TARGET "standard"
-struct ebt_standard_target
-{
- struct ebt_entry_target target;
- int verdict;
-#ifdef KERNEL_64_USERSPACE_32
- unsigned int pad;
-#endif
-};
-
-/* one entry */
-struct ebt_entry {
- /* this needs to be the first field */
- unsigned int bitmask;
- unsigned int invflags;
- uint16_t ethproto;
- /* the physical in-dev */
- char in[IFNAMSIZ];
- /* the logical in-dev */
- char logical_in[IFNAMSIZ];
- /* the physical out-dev */
- char out[IFNAMSIZ];
- /* the logical out-dev */
- char logical_out[IFNAMSIZ];
- unsigned char sourcemac[ETH_ALEN];
- unsigned char sourcemsk[ETH_ALEN];
- unsigned char destmac[ETH_ALEN];
- unsigned char destmsk[ETH_ALEN];
- /* sizeof ebt_entry + matches */
- unsigned int watchers_offset;
- /* sizeof ebt_entry + matches + watchers */
- unsigned int target_offset;
- /* sizeof ebt_entry + matches + watchers + target */
- unsigned int next_offset;
- unsigned char elems[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-/* {g,s}etsockopt numbers */
-#define EBT_BASE_CTL 128
-
-#define EBT_SO_SET_ENTRIES (EBT_BASE_CTL)
-#define EBT_SO_SET_COUNTERS (EBT_SO_SET_ENTRIES+1)
-#define EBT_SO_SET_MAX (EBT_SO_SET_COUNTERS+1)
-
-#define EBT_SO_GET_INFO (EBT_BASE_CTL)
-#define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO+1)
-#define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES+1)
-#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO+1)
-#define EBT_SO_GET_MAX (EBT_SO_GET_INIT_ENTRIES+1)
-
-/* blatently stolen from ip_tables.h
- * fn returns 0 to continue iteration */
-#define EBT_MATCH_ITERATE(e, fn, args...) \
-({ \
- unsigned int __i; \
- int __ret = 0; \
- struct ebt_entry_match *__match; \
- \
- for (__i = sizeof(struct ebt_entry); \
- __i < (e)->watchers_offset; \
- __i += __match->match_size + \
- sizeof(struct ebt_entry_match)) { \
- __match = (void *)(e) + __i; \
- \
- __ret = fn(__match , ## args); \
- if (__ret != 0) \
- break; \
- } \
- if (__ret == 0) { \
- if (__i != (e)->watchers_offset) \
- __ret = -EINVAL; \
- } \
- __ret; \
-})
-
-#define EBT_WATCHER_ITERATE(e, fn, args...) \
-({ \
- unsigned int __i; \
- int __ret = 0; \
- struct ebt_entry_watcher *__watcher; \
- \
- for (__i = e->watchers_offset; \
- __i < (e)->target_offset; \
- __i += __watcher->watcher_size + \
- sizeof(struct ebt_entry_watcher)) { \
- __watcher = (void *)(e) + __i; \
- \
- __ret = fn(__watcher , ## args); \
- if (__ret != 0) \
- break; \
- } \
- if (__ret == 0) { \
- if (__i != (e)->target_offset) \
- __ret = -EINVAL; \
- } \
- __ret; \
-})
-
-#define EBT_ENTRY_ITERATE(entries, size, fn, args...) \
-({ \
- unsigned int __i; \
- int __ret = 0; \
- struct ebt_entry *__entry; \
- \
- for (__i = 0; __i < (size);) { \
- __entry = (void *)(entries) + __i; \
- __ret = fn(__entry , ## args); \
- if (__ret != 0) \
- break; \
- if (__entry->bitmask != 0) \
- __i += __entry->next_offset; \
- else \
- __i += sizeof(struct ebt_entries); \
- } \
- if (__ret == 0) { \
- if (__i != (size)) \
- __ret = -EINVAL; \
- } \
- __ret; \
-})
-
-#endif