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/*
* (C) 2005-2012 by Pablo Neira Ayuso <pablo@netfilter.org>
* (C) 2012 by Vyatta Inc. <http://www.vyatta.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include "internal/internal.h"
static int exp_cmp(int attr,
const struct nf_expect *exp1,
const struct nf_expect *exp2,
unsigned int flags,
int (*cmp)(const struct nf_expect *exp1,
const struct nf_expect *exp2,
unsigned int flags))
{
if (test_bit(attr, exp1->set) && test_bit(attr, exp2->set)) {
return cmp(exp1, exp2, flags);
} else if (flags & NFCT_CMP_MASK &&
test_bit(attr, exp1->set)) {
return 0;
} else if (flags & NFCT_CMP_STRICT) {
return 0;
}
return 1;
}
static int
cmp_exp_flags(const struct nf_expect *exp1, const struct nf_expect *exp2,
unsigned int flags)
{
return (exp1->flags == exp2->flags);
}
static int
cmp_exp_class(const struct nf_expect *exp1, const struct nf_expect *exp2,
unsigned int flags)
{
return (exp1->class == exp2->class);
}
int __cmp_expect(const struct nf_expect *exp1,
const struct nf_expect *exp2,
unsigned int flags)
{
if (!__cmp_orig((struct nf_conntrack *)&exp1->master,
(struct nf_conntrack *)&exp2->master, flags)) {
return 0;
}
if (!__cmp_orig((struct nf_conntrack *)&exp1->expected,
(struct nf_conntrack *)&exp2->expected, flags)) {
return 0;
}
if (!__cmp_orig((struct nf_conntrack *)&exp1->mask,
(struct nf_conntrack *)&exp2->mask, flags)) {
return 0;
}
if (!exp_cmp(ATTR_EXP_FLAGS, exp1, exp2, flags, cmp_exp_flags))
return 0;
if (!exp_cmp(ATTR_EXP_CLASS, exp1, exp2, flags, cmp_exp_class))
return 0;
return 1;
}
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