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netfilter: xtables: move extension arguments into compound structure (5/6)

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This patch does this for target extensions' checkentry functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Jan Engelhardt 2008-10-08 11:35:19 +02:00 • committed by Patrick McHardy
parent 7eb3558655
commit af5d6dc200
39 changed files with 206 additions and 281 deletions
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29
include/linux/netfilter/x_tables.h
View file

@ -234,6 +234,23 @@ struct xt_target_param {
const void *targinfo;
};
/**
* struct xt_tgchk_param - parameters for target extensions'
* checkentry functions
*
* @entryinfo: the family-specific rule data
* (struct ipt_entry, ip6t_entry, arpt_entry, ebt_entry)
*
* Other fields see above.
*/
struct xt_tgchk_param {
const char *table;
void *entryinfo;
const struct xt_target *target;
void *targinfo;
unsigned int hook_mask;
};
struct xt_match
{
struct list_head list;
@ -291,11 +308,7 @@ struct xt_target
hook_mask is a bitmask of hooks from which it can be
called. */
/* Should return true or false. */
bool (*checkentry)(const char *tablename,
const void *entry,
const struct xt_target *target,
void *targinfo,
unsigned int hook_mask);
bool (*checkentry)(const struct xt_tgchk_param *);
/* Called when entry of this type deleted. */
void (*destroy)(const struct xt_target *target, void *targinfo);
@ -376,10 +389,8 @@ extern void xt_unregister_matches(struct xt_match *match, unsigned int n);
extern int xt_check_match(struct xt_mtchk_param *, u_int8_t family,
unsigned int size, u_int8_t proto, bool inv_proto);
extern int xt_check_target(const struct xt_target *target, unsigned short family,
unsigned int size, const char *table, unsigned int hook,
unsigned short proto, int inv_proto,
const void *entry, void *targinfo);
extern int xt_check_target(struct xt_tgchk_param *, u_int8_t family,
unsigned int size, u_int8_t proto, bool inv_proto);
extern struct xt_table *xt_register_table(struct net *net,
struct xt_table *table,

4
include/linux/netfilter_bridge/ebtables.h
View file

@ -310,9 +310,9 @@ extern unsigned int ebt_do_table(unsigned int hook, struct sk_buff *skb,
#define FWINV(bool,invflg) ((bool) ^ !!(info->invflags & invflg))
/* True if the hook mask denotes that the rule is in a base chain,
* used in the check() functions */
#define BASE_CHAIN (hookmask & (1 << NF_BR_NUMHOOKS))
#define BASE_CHAIN (par->hook_mask & (1 << NF_BR_NUMHOOKS))
/* Clear the bit in the hook mask that tells if the rule is on a base chain */
#define CLEAR_BASE_CHAIN_BIT (hookmask &= ~(1 << NF_BR_NUMHOOKS))
#define CLEAR_BASE_CHAIN_BIT (par->hook_mask &= ~(1 << NF_BR_NUMHOOKS))
/* True if the target is not a standard target */
#define INVALID_TARGET (info->target < -NUM_STANDARD_TARGETS || info->target >= 0)