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#ifndef _XTABLES_H
#define _XTABLES_H
#include <sys/socket.h> /* PF_* */
#include <sys/types.h>
#include <stdbool.h>
#include <net/if.h>
#include <linux/types.h>
#include <linux/netfilter/x_tables.h>
#ifndef IPPROTO_SCTP
#define IPPROTO_SCTP 132
#endif
#ifndef IPPROTO_DCCP
#define IPPROTO_DCCP 33
#endif
#ifndef IPPROTO_UDPLITE
#define IPPROTO_UDPLITE 136
#endif
#define XTABLES_VERSION "@PACKAGE_VERSION@"
#define XTABLES_VERSION_CODE (0x10000 * @XTABLES_VERSION_MAJOR@ + 0x100 * @XTABLES_VERSION_MINOR@ + @XTABLES_VERSION_PATCH@)
#define XTABLES_API_VERSION(x,y,z) (0x10000*(x) + 0x100*(y) + z)
struct in_addr;
/* Include file for additions: new matches and targets. */
struct xtables_match
{
struct xtables_match *next;
const char *name;
/* Revision of match (0 by default). */
u_int8_t revision;
u_int16_t family;
const char *version;
/* Size of match data. */
size_t size;
/* Size of match data relevent for userspace comparison purposes */
size_t userspacesize;
/* Function which prints out usage message. */
void (*help)(void);
/* Initialize the match. */
void (*init)(struct xt_entry_match *m);
/* Function which parses command options; returns true if it
ate an option */
/* entry is struct ipt_entry for example */
int (*parse)(int c, char **argv, int invert, unsigned int *flags,
const void *entry,
struct xt_entry_match **match);
/* Final check; exit if not ok. */
void (*final_check)(unsigned int flags);
/* Prints out the match iff non-NULL: put space at end */
/* ip is struct ipt_ip * for example */
void (*print)(const void *ip,
const struct xt_entry_match *match, int numeric);
/* Saves the match info in parsable form to stdout. */
/* ip is struct ipt_ip * for example */
void (*save)(const void *ip, const struct xt_entry_match *match);
/* Pointer to list of extra command-line options */
const struct option *extra_opts;
/* Ignore these men behind the curtain: */
unsigned int option_offset;
struct xt_entry_match *m;
unsigned int mflags;
#ifdef NO_SHARED_LIBS
unsigned int loaded; /* simulate loading so options are merged properly */
#endif
};
struct xtables_target
{
struct xtables_target *next;
const char *name;
/* Revision of target (0 by default). */
u_int8_t revision;
u_int16_t family;
const char *version;
/* Size of target data. */
size_t size;
/* Size of target data relevent for userspace comparison purposes */
size_t userspacesize;
/* Function which prints out usage message. */
void (*help)(void);
/* Initialize the target. */
void (*init)(struct xt_entry_target *t);
/* Function which parses command options; returns true if it
ate an option */
/* entry is struct ipt_entry for example */
int (*parse)(int c, char **argv, int invert, unsigned int *flags,
const void *entry,
struct xt_entry_target **targetinfo);
/* Final check; exit if not ok. */
void (*final_check)(unsigned int flags);
/* Prints out the target iff non-NULL: put space at end */
void (*print)(const void *ip,
const struct xt_entry_target *target, int numeric);
/* Saves the targinfo in parsable form to stdout. */
void (*save)(const void *ip,
const struct xt_entry_target *target);
/* Pointer to list of extra command-line options */
const struct option *extra_opts;
/* Ignore these men behind the curtain: */
unsigned int option_offset;
struct xt_entry_target *t;
unsigned int tflags;
unsigned int used;
#ifdef NO_SHARED_LIBS
unsigned int loaded; /* simulate loading so options are merged properly */
#endif
};
/* Your shared library should call one of these. */
extern void xtables_register_match(struct xtables_match *me);
extern void xtables_register_target(struct xtables_target *me);
extern int string_to_number_ll(const char *s,
unsigned long long min,
unsigned long long max,
unsigned long long *ret);
extern int string_to_number_l(const char *s,
unsigned long min,
unsigned long max,
unsigned long *ret);
extern int string_to_number(const char *s,
unsigned int min,
unsigned int max,
unsigned int *ret);
extern bool strtonuml(const char *, char **, unsigned long *,
unsigned long, unsigned long);
extern bool strtonum(const char *, char **, unsigned int *,
unsigned int, unsigned int);
extern int service_to_port(const char *name, const char *proto);
extern u_int16_t parse_port(const char *port, const char *proto);
extern void
parse_interface(const char *arg, char *vianame, unsigned char *mask);
enum exittype {
OTHER_PROBLEM = 1,
PARAMETER_PROBLEM,
VERSION_PROBLEM,
RESOURCE_PROBLEM,
P_ONLY_ONCE,
P_NO_INVERT,
P_BAD_VALUE,
P_ONE_ACTION,
};
/* this is a special 64bit data type that is 8-byte aligned */
#define aligned_u64 u_int64_t __attribute__((aligned(8)))
int check_inverse(const char option[], int *invert, int *my_optind, int argc);
void exit_error(enum exittype, const char *, ...)__attribute__((noreturn,
format(printf,2,3)));
extern void param_act(unsigned int, const char *, ...);
extern const char *program_name, *program_version;
extern const char *ipaddr_to_numeric(const struct in_addr *);
extern const char *ipaddr_to_anyname(const struct in_addr *);
extern const char *ipmask_to_numeric(const struct in_addr *);
extern struct in_addr *numeric_to_ipaddr(const char *);
extern struct in_addr *numeric_to_ipmask(const char *);
extern void ipparse_hostnetworkmask(const char *, struct in_addr **,
struct in_addr *, unsigned int *);
extern struct in6_addr *numeric_to_ip6addr(const char *);
extern const char *ip6addr_to_numeric(const struct in6_addr *);
extern const char *ip6addr_to_anyname(const struct in6_addr *);
extern const char *ip6mask_to_numeric(const struct in6_addr *);
extern void ip6parse_hostnetworkmask(const char *, struct in6_addr **,
struct in6_addr *, unsigned int *);
/**
* Print the specified value to standard output, quoting dangerous
* characters if required.
*/
extern void save_string(const char *value);
#ifdef NO_SHARED_LIBS
# ifdef _INIT
# undef _init
# define _init _INIT
# endif
extern void init_extensions(void);
#else
# define _init __attribute__((constructor)) _INIT
#endif
/* Present in both iptables.c and ip6tables.c */
extern u_int16_t parse_protocol(const char *s);
#ifdef XTABLES_INTERNAL
# include <xtables/internal.h>
#endif
#endif /* _XTABLES_H */
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