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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _XTABLES_INTERNAL_H
#define _XTABLES_INTERNAL_H 1
#ifndef XT_LIB_DIR
# define XT_LIB_DIR "/lib/xtables"
#endif
/* protocol family dependent information */
struct afinfo {
/* protocol family */
int family;
/* prefix of library name (ex "libipt_" */
char *libprefix;
/* used by setsockopt (ex IPPROTO_IP */
int ipproto;
/* kernel module (ex "ip_tables" */
char *kmod;
/* optname to check revision support of match */
int so_rev_match;
/* optname to check revision support of match */
int so_rev_target;
};
enum xt_tryload {
DONT_LOAD,
DURING_LOAD,
TRY_LOAD,
LOAD_MUST_SUCCEED
};
struct xtables_rule_match {
struct xtables_rule_match *next;
struct xtables_match *match;
/* Multiple matches of the same type: the ones before
the current one are completed from parsing point of view */
unsigned int completed;
};
extern char *lib_dir;
extern void *fw_calloc(size_t count, size_t size);
extern void *fw_malloc(size_t size);
extern const char *modprobe_program;
extern int xtables_insmod(const char *modname, const char *modprobe, int quiet);
extern int load_xtables_ko(const char *modprobe, int quiet);
/* This is decleared in ip[6]tables.c */
extern struct afinfo afinfo;
/* Keeping track of external matches and targets: linked lists. */
extern struct xtables_match *xtables_matches;
extern struct xtables_target *xtables_targets;
extern struct xtables_match *find_match(const char *name, enum xt_tryload,
struct xtables_rule_match **match);
extern struct xtables_target *find_target(const char *name, enum xt_tryload);
extern void _init(void);
#endif /* _XTABLES_INTERNAL_H */
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