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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License; either
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* version 2 of the License, or any later version, as published by the
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* Free Software Foundation.
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*/
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#ifndef _COMPAT_XTNU_H
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#define _COMPAT_XTNU_H 1
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#include <linux/netfilter/x_tables.h>
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struct module;
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struct sk_buff;
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struct xtnu_match {
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/*
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* Making it smaller by sizeof(void *) on purpose to catch
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* lossy translation, if any.
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*/
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char name[sizeof(((struct xt_match *)NULL)->name) - 1 - sizeof(void *)];
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uint8_t revision;
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bool (*match)(const struct sk_buff *, struct xt_action_param *);
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int (*checkentry)(const struct xt_mtchk_param *);
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void (*destroy)(const struct xt_mtdtor_param *);
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struct module *me;
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const char *table;
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unsigned int matchsize, hooks;
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unsigned short proto, family;
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void *__compat_match;
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};
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struct xtnu_target {
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char name[sizeof(((struct xt_target *)NULL)->name) - 1 - sizeof(void *)];
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uint8_t revision;
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unsigned int (*target)(struct sk_buff **,
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const struct xt_action_param *);
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int (*checkentry)(const struct xt_tgchk_param *);
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void (*destroy)(const struct xt_tgdtor_param *);
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struct module *me;
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const char *table;
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unsigned int targetsize, hooks;
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unsigned short proto, family;
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void *__compat_target;
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};
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static inline struct xtnu_match *xtcompat_numatch(const struct xt_match *m)
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{
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void *q;
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memcpy(&q, m->name + sizeof(m->name) - sizeof(void *), sizeof(void *));
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return q;
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}
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static inline struct xtnu_target *xtcompat_nutarget(const struct xt_target *t)
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{
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void *q;
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memcpy(&q, t->name + sizeof(t->name) - sizeof(void *), sizeof(void *));
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return q;
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}
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extern int xtnu_register_match(struct xtnu_match *);
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extern void xtnu_unregister_match(struct xtnu_match *);
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extern int xtnu_register_matches(struct xtnu_match *, unsigned int);
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extern void xtnu_unregister_matches(struct xtnu_match *, unsigned int);
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extern int xtnu_register_target(struct xtnu_target *);
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extern void xtnu_unregister_target(struct xtnu_target *);
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extern int xtnu_register_targets(struct xtnu_target *, unsigned int);
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extern void xtnu_unregister_targets(struct xtnu_target *, unsigned int);
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extern void *HX_memmem(const void *, size_t, const void *, size_t);
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#endif /* _COMPAT_XTNU_H */
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