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freebsd-skq/contrib/ipfilter/ipf.h
Cy Schubert 57785538c6 Simplify the FreeBSD check using __FreeBSD__ compiler macro. 
Rather than rely on __FreeBSD_version, defined in sys/param.h, use
__FreeBSD__ defined by the compiler.

Reported by:	emaste
MFC after:	1 week
2021-02-08 16:36:27 -08:00

378 lines
11 KiB
C
Raw Blame History

/* $FreeBSD$ */
/*
* Copyright (C) 2012 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*
* @(#)ipf.h 1.12 6/5/96
* $Id$
*/
#ifndef __IPF_H__
#define __IPF_H__
#include <sys/param.h>
#include <sys/types.h>
#include <sys/file.h>
/*
* This is a workaround for <sys/uio.h> troubles on FreeBSD, HPUX, OpenBSD.
* Needed here because on some systems <sys/uio.h> gets included by things
* like <sys/socket.h>
*/
#ifndef _KERNEL
# define ADD_KERNEL
# define _KERNEL
# define KERNEL
#endif
#include <sys/uio.h>
#ifdef ADD_KERNEL
# undef _KERNEL
# undef KERNEL
#endif
#include <sys/time.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
# include <netinet/tcp.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <errno.h>
#include <limits.h>
#include <netdb.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
#if !defined(__SVR4) && !defined(__svr4__) && defined(sun)
# include <strings.h>
#endif
#include <string.h>
#include <unistd.h>
#include "netinet/ip_compat.h"
#include "netinet/ip_fil.h"
#include "netinet/ip_nat.h"
#include "netinet/ip_frag.h"
#include "netinet/ip_state.h"
#include "netinet/ip_proxy.h"
#include "netinet/ip_auth.h"
#include "netinet/ip_lookup.h"
#include "netinet/ip_pool.h"
#include "netinet/ip_scan.h"
#include "netinet/ip_htable.h"
#include "netinet/ip_sync.h"
#include "netinet/ip_dstlist.h"
#include "opts.h"
#ifndef __P
# define __P(x) x
#endif
#ifndef U_32_T
# define U_32_T 1
# if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || \
defined(__sgi)
typedef u_int32_t u_32_t;
# else
# if defined(__alpha__) || defined(__alpha) || defined(_LP64)
typedef unsigned int u_32_t;
# else
# if SOLARIS2 >= 6
typedef uint32_t u_32_t;
# else
typedef unsigned int u_32_t;
# endif
# endif
# endif /* __NetBSD__ || __OpenBSD__ || __FreeBSD__ || __sgi */
#endif /* U_32_T */
#ifndef MAXHOSTNAMELEN
# define MAXHOSTNAMELEN 256
#endif
#define MAX_ICMPCODE 16
#define MAX_ICMPTYPE 19
#define PRINTF (void)printf
#define FPRINTF (void)fprintf
struct ipopt_names {
int on_value;
int on_bit;
int on_siz;
char *on_name;
};
typedef struct alist_s {
struct alist_s *al_next;
int al_not;
int al_family;
i6addr_t al_i6addr;
i6addr_t al_i6mask;
} alist_t;
#define al_addr al_i6addr.in4_addr
#define al_mask al_i6mask.in4_addr
#define al_1 al_addr
#define al_2 al_mask
typedef struct plist_s {
struct plist_s *pl_next;
int pl_compare;
u_short pl_port1;
u_short pl_port2;
} plist_t;
typedef struct {
u_short fb_c;
u_char fb_t;
u_char fb_f;
u_32_t fb_k;
} fakebpf_t;
typedef struct {
char *it_name;
int it_v4;
int it_v6;
} icmptype_t;
typedef struct wordtab {
char *w_word;
int w_value;
} wordtab_t;
typedef struct namelist {
struct namelist *na_next;
char *na_name;
int na_value;
} namelist_t;
typedef struct proxyrule {
struct proxyrule *pr_next;
char *pr_proxy;
char *pr_conf;
namelist_t *pr_names;
int pr_proto;
} proxyrule_t;
#if defined(__NetBSD__) || defined(__FreeBSD__) || \
SOLARIS
# include <stdarg.h>
typedef int (* ioctlfunc_t)(int, ioctlcmd_t, ...);
#else
typedef int (* ioctlfunc_t)(dev_t, ioctlcmd_t, void *);
#endif
typedef int (* addfunc_t)(int, ioctlfunc_t, void *);
typedef int (* copyfunc_t)(void *, void *, size_t);
extern char thishost[MAXHOSTNAMELEN];
extern char flagset[];
extern u_char flags[];
extern struct ipopt_names ionames[];
extern struct ipopt_names secclass[];
extern char *icmpcodes[MAX_ICMPCODE + 1];
extern char *icmptypes[MAX_ICMPTYPE + 1];
extern int use_inet6;
extern int lineNum;
extern int debuglevel;
extern struct ipopt_names v6ionames[];
extern icmptype_t icmptypelist[];
extern wordtab_t statefields[];
extern wordtab_t natfields[];
extern wordtab_t poolfields[];
extern int addicmp(char ***, struct frentry *, int);
extern int addipopt(char *, struct ipopt_names *, int, char *);
extern int addkeep(char ***, struct frentry *, int);
extern alist_t *alist_new(int, char *);
extern void alist_free(alist_t *);
extern void assigndefined(char *);
extern void binprint(void *, size_t);
extern u_32_t buildopts(char *, char *, int);
extern int checkrev(char *);
extern int connecttcp(char *, int);
extern int count6bits(u_32_t *);
extern int count4bits(u_32_t);
extern char *fac_toname(int);
extern int fac_findname(char *);
extern const char *familyname(const int);
extern void fill6bits(int, u_int *);
extern wordtab_t *findword(wordtab_t *, char *);
extern int ftov(int);
extern char *ipf_geterror(int, ioctlfunc_t *);
extern int genmask(int, char *, i6addr_t *);
extern int gethost(int, char *, i6addr_t *);
extern int geticmptype(int, char *);
extern int getport(struct frentry *, char *, u_short *, char *);
extern int getportproto(char *, int);
extern int getproto(char *);
extern char *getnattype(struct nat *);
extern char *getsumd(u_32_t);
extern u_32_t getoptbyname(char *);
extern u_32_t getoptbyvalue(int);
extern u_32_t getv6optbyname(char *);
extern u_32_t getv6optbyvalue(int);
extern char *icmptypename(int, int);
extern void initparse(void);
extern void ipf_dotuning(int, char *, ioctlfunc_t);
extern int ipf_addrule(int, ioctlfunc_t, void *);
extern void ipf_mutex_clean(void);
extern int ipf_parsefile(int, addfunc_t, ioctlfunc_t *, char *);
extern int ipf_parsesome(int, addfunc_t, ioctlfunc_t *, FILE *);
extern void ipf_perror(int, char *);
extern int ipf_perror_fd( int, ioctlfunc_t, char *);
extern void ipf_rwlock_clean(void);
extern char *ipf_strerror(int);
extern void ipferror(int, char *);
extern int ipmon_parsefile(char *);
extern int ipmon_parsesome(FILE *);
extern int ipnat_addrule(int, ioctlfunc_t, void *);
extern int ipnat_parsefile(int, addfunc_t, ioctlfunc_t, char *);
extern int ipnat_parsesome(int, addfunc_t, ioctlfunc_t, FILE *);
extern int ippool_parsefile(int, char *, ioctlfunc_t);
extern int ippool_parsesome(int, FILE *, ioctlfunc_t);
extern int kmemcpywrap(void *, void *, size_t);
extern char *kvatoname(ipfunc_t, ioctlfunc_t);
extern int load_dstlist(struct ippool_dst *, ioctlfunc_t,
ipf_dstnode_t *);
extern int load_dstlistnode(int, char *, struct ipf_dstnode *,
ioctlfunc_t);
extern alist_t *load_file(char *);
extern int load_hash(struct iphtable_s *, struct iphtent_s *,
ioctlfunc_t);
extern int load_hashnode(int, char *, struct iphtent_s *, int,
ioctlfunc_t);
extern alist_t *load_http(char *);
extern int load_pool(struct ip_pool_s *list, ioctlfunc_t);
extern int load_poolnode(int, char *, ip_pool_node_t *, int, ioctlfunc_t);
extern alist_t *load_url(char *);
extern alist_t *make_range(int, struct in_addr, struct in_addr);
extern void mb_hexdump(mb_t *, FILE *);
extern ipfunc_t nametokva(char *, ioctlfunc_t);
extern void nat_setgroupmap(struct ipnat *);
extern int ntomask(int, int, u_32_t *);
extern u_32_t optname(char ***, u_short *, int);
extern wordtab_t *parsefields(wordtab_t *, char *);
extern int *parseipfexpr(char *, char **);
extern int parsewhoisline(char *, addrfamily_t *, addrfamily_t *);
extern void pool_close(void);
extern int pool_fd(void);
extern int pool_ioctl(ioctlfunc_t, ioctlcmd_t, void *);
extern int pool_open(void);
extern char *portname(int, int);
extern int pri_findname(char *);
extern char *pri_toname(int);
extern void print_toif(int, char *, char *, struct frdest *);
extern void printaps(ap_session_t *, int, int);
extern void printaddr(int, int, char *, int, u_32_t *, u_32_t *);
extern void printbuf(char *, int, int);
extern void printfieldhdr(wordtab_t *, wordtab_t *);
extern void printfr(struct frentry *, ioctlfunc_t);
extern struct iphtable_s *printhash(struct iphtable_s *, copyfunc_t,
char *, int, wordtab_t *);
extern struct iphtable_s *printhash_live(iphtable_t *, int, char *,
int, wordtab_t *);
extern ippool_dst_t *printdstl_live(ippool_dst_t *, int, char *,
int, wordtab_t *);
extern void printhashdata(iphtable_t *, int);
extern struct iphtent_s *printhashnode(struct iphtable_s *,
struct iphtent_s *,
copyfunc_t, int, wordtab_t *);
extern void printhost(int, u_32_t *);
extern void printhostmask(int, u_32_t *, u_32_t *);
extern void printip(int, u_32_t *);
extern void printlog(struct frentry *);
extern void printlookup(char *, i6addr_t *addr, i6addr_t *mask);
extern void printmask(int, u_32_t *);
extern void printnataddr(int, char *, nat_addr_t *, int);
extern void printnatfield(nat_t *, int);
extern void printnatside(char *, nat_stat_side_t *);
extern void printpacket(int, mb_t *);
extern void printpacket6(int, mb_t *);
extern struct ippool_dst *printdstlist(struct ippool_dst *, copyfunc_t,
char *, int, ipf_dstnode_t *,
wordtab_t *);
extern void printdstlistdata(ippool_dst_t *, int);
extern ipf_dstnode_t *printdstlistnode(ipf_dstnode_t *, copyfunc_t,
int, wordtab_t *);
extern void printdstlistpolicy(ippool_policy_t);
extern struct ip_pool_s *printpool(struct ip_pool_s *, copyfunc_t,
char *, int, wordtab_t *);
extern struct ip_pool_s *printpool_live(struct ip_pool_s *, int,
char *, int, wordtab_t *);
extern void printpooldata(ip_pool_t *, int);
extern void printpoolfield(void *, int, int);
extern struct ip_pool_node *printpoolnode(struct ip_pool_node *,
int, wordtab_t *);
extern void printproto(struct protoent *, int, struct ipnat *);
extern void printportcmp(int, struct frpcmp *);
extern void printstatefield(ipstate_t *, int);
extern void printtqtable(ipftq_t *);
extern void printtunable(ipftune_t *);
extern void printunit(int);
extern void optprint(u_short *, u_long, u_long);
#ifdef USE_INET6
extern void optprintv6(u_short *, u_long, u_long);
#endif
extern int remove_hash(struct iphtable_s *, ioctlfunc_t);
extern int remove_hashnode(int, char *, struct iphtent_s *, ioctlfunc_t);
extern int remove_pool(ip_pool_t *, ioctlfunc_t);
extern int remove_poolnode(int, char *, ip_pool_node_t *, ioctlfunc_t);
extern u_char tcpflags(char *);
extern void printc(struct frentry *);
extern void printC(int);
extern void emit(int, int, void *, struct frentry *);
extern u_char secbit(int);
extern u_char seclevel(char *);
extern void printfraginfo(char *, struct ipfr *);
extern void printifname(char *, char *, void *);
extern char *hostname(int, void *);
extern struct ipstate *printstate(struct ipstate *, int, u_long);
extern void printsbuf(char *);
extern void printnat(struct ipnat *, int);
extern void printactiveaddress(int, char *, i6addr_t *, char *);
extern void printactivenat(struct nat *, int, u_long);
extern void printhostmap(struct hostmap *, u_int);
extern void printtcpflags(u_32_t, u_32_t);
extern void printipfexpr(int *);
extern void printstatefield(ipstate_t *, int);
extern void printstatefieldhdr(int);
extern int sendtrap_v1_0(int, char *, char *, int, time_t);
extern int sendtrap_v2_0(int, char *, char *, int);
extern int vtof(int);
extern void set_variable(char *, char *);
extern char *get_variable(char *, char **, int);
extern void resetlexer(void);
extern void debug(int, char *, ...);
extern void verbose(int, char *, ...);
extern void ipfkdebug(char *, ...);
extern void ipfkverbose(char *, ...);
#if SOLARIS
extern int gethostname(char *, int );
extern void sync(void);
#endif
#endif /* __IPF_H__ */
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