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[NETFILTER]: x_tables: add helpers for mass match/target registration 

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2006-08-22 00:33:45 -07:00 committed by David S. Miller
parent 90528e6fe9
commit 52d9c42ef2
2 changed files with 65 additions and 0 deletions
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5
include/linux/netfilter/x_tables.h
View File

@ -290,8 +290,13 @@ struct xt_table_info
extern int xt_register_target(struct xt_target *target);
extern void xt_unregister_target(struct xt_target *target);
extern int xt_register_targets(struct xt_target *target, unsigned int n);
extern void xt_unregister_targets(struct xt_target *target, unsigned int n);
extern int xt_register_match(struct xt_match *target);
extern void xt_unregister_match(struct xt_match *target);
extern int xt_register_matches(struct xt_match *match, unsigned int n);
extern void xt_unregister_matches(struct xt_match *match, unsigned int n);
extern int xt_check_match(const struct xt_match *match, unsigned short family,
unsigned int size, const char *table, unsigned int hook,

60
net/netfilter/x_tables.c
View File

@ -86,6 +86,36 @@ xt_unregister_target(struct xt_target *target)
}
EXPORT_SYMBOL(xt_unregister_target);
int
xt_register_targets(struct xt_target *target, unsigned int n)
{
unsigned int i;
int err = 0;
for (i = 0; i < n; i++) {
err = xt_register_target(&target[i]);
if (err)
goto err;
}
return err;
err:
if (i > 0)
xt_unregister_targets(target, i);
return err;
}
EXPORT_SYMBOL(xt_register_targets);
void
xt_unregister_targets(struct xt_target *target, unsigned int n)
{
unsigned int i;
for (i = 0; i < n; i++)
xt_unregister_target(&target[i]);
}
EXPORT_SYMBOL(xt_unregister_targets);
int
xt_register_match(struct xt_match *match)
{
@ -113,6 +143,36 @@ xt_unregister_match(struct xt_match *match)
}
EXPORT_SYMBOL(xt_unregister_match);
int
xt_register_matches(struct xt_match *match, unsigned int n)
{
unsigned int i;
int err = 0;
for (i = 0; i < n; i++) {
err = xt_register_match(&match[i]);
if (err)
goto err;
}
return err;
err:
if (i > 0)
xt_unregister_matches(match, i);
return err;
}
EXPORT_SYMBOL(xt_register_matches);
void
xt_unregister_matches(struct xt_match *match, unsigned int n)
{
unsigned int i;
for (i = 0; i < n; i++)
xt_unregister_match(&match[i]);
}
EXPORT_SYMBOL(xt_unregister_matches);
/*
* These are weird, but module loading must not be done with mutex