1/* $FreeBSD$ */ 2 3/* 4 * Copyright (C) 2012 by Darren Reed. 5 * 6 * See the IPFILTER.LICENCE file for details on licencing. 7 * 8 * @(#)ipf.h 1.12 6/5/96 9 * $Id$ 10 */ 11 12#ifndef __IPF_H__ 13#define __IPF_H__ 14 15#if defined(__osf__) 16# define radix_mask ipf_radix_mask 17# define radix_node ipf_radix_node 18# define radix_node_head ipf_radix_node_head 19#endif 20 21#include <sys/param.h> 22#include <sys/types.h> 23#include <sys/file.h> 24/* 25 * This is a workaround for <sys/uio.h> troubles on FreeBSD, HPUX, OpenBSD. 26 * Needed here because on some systems <sys/uio.h> gets included by things 27 * like <sys/socket.h> 28 */ 29#ifndef _KERNEL 30# define ADD_KERNEL 31# define _KERNEL 32# define KERNEL 33#endif 34#ifdef __OpenBSD__ 35struct file; 36#endif 37#include <sys/uio.h> 38#ifdef ADD_KERNEL 39# undef _KERNEL 40# undef KERNEL 41#endif 42#include <sys/time.h> 43#include <sys/socket.h> 44#include <net/if.h> 45#if __FreeBSD_version >= 300000 46# include <net/if_var.h> 47#endif 48#include <netinet/in.h> 49#include <netinet/in_systm.h> 50#include <netinet/ip.h> 51#include <netinet/ip_icmp.h> 52#ifndef TCP_PAWS_IDLE /* IRIX */ 53# include <netinet/tcp.h> 54#endif 55#include <netinet/udp.h> 56 57#include <arpa/inet.h> 58 59#include <errno.h> 60#include <limits.h> 61#include <netdb.h> 62#include <stdlib.h> 63#include <stddef.h> 64#include <stdio.h> 65#if !defined(__SVR4) && !defined(__svr4__) && defined(sun) 66# include <strings.h> 67#endif 68#include <string.h> 69#include <unistd.h> 70 71#include "netinet/ip_compat.h" 72#include "netinet/ip_fil.h" 73#include "netinet/ip_nat.h" 74#include "netinet/ip_frag.h" 75#include "netinet/ip_state.h" 76#include "netinet/ip_proxy.h" 77#include "netinet/ip_auth.h" 78#include "netinet/ip_lookup.h" 79#include "netinet/ip_pool.h" 80#include "netinet/ip_scan.h" 81#include "netinet/ip_htable.h" 82#include "netinet/ip_sync.h" 83#include "netinet/ip_dstlist.h" 84 85#include "opts.h" 86 87#ifndef __P 88# ifdef __STDC__ 89# define __P(x) x 90# else 91# define __P(x) () 92# endif 93#endif 94#ifndef __STDC__ 95# undef const 96# define const 97#endif 98 99#ifndef U_32_T 100# define U_32_T 1 101# if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || \ 102 defined(__sgi) 103typedef u_int32_t u_32_t; 104# else 105# if defined(__alpha__) || defined(__alpha) || defined(_LP64) 106typedef unsigned int u_32_t; 107# else 108# if SOLARIS2 >= 6 109typedef uint32_t u_32_t; 110# else 111typedef unsigned int u_32_t; 112# endif 113# endif 114# endif /* __NetBSD__ || __OpenBSD__ || __FreeBSD__ || __sgi */ 115#endif /* U_32_T */ 116 117#ifndef MAXHOSTNAMELEN 118# define MAXHOSTNAMELEN 256 119#endif 120 121#define MAX_ICMPCODE 16 122#define MAX_ICMPTYPE 19 123 124#define PRINTF (void)printf 125#define FPRINTF (void)fprintf 126 127 128struct ipopt_names { 129 int on_value; 130 int on_bit; 131 int on_siz; 132 char *on_name; 133}; 134 135 136typedef struct alist_s { 137 struct alist_s *al_next; 138 int al_not; 139 int al_family; 140 i6addr_t al_i6addr; 141 i6addr_t al_i6mask; 142} alist_t; 143 144#define al_addr al_i6addr.in4_addr 145#define al_mask al_i6mask.in4_addr 146#define al_1 al_addr 147#define al_2 al_mask 148 149 150typedef struct plist_s { 151 struct plist_s *pl_next; 152 int pl_compare; 153 u_short pl_port1; 154 u_short pl_port2; 155} plist_t; 156 157 158typedef struct { 159 u_short fb_c; 160 u_char fb_t; 161 u_char fb_f; 162 u_32_t fb_k; 163} fakebpf_t; 164 165 166typedef struct { 167 char *it_name; 168 int it_v4; 169 int it_v6; 170} icmptype_t; 171 172 173typedef struct wordtab { 174 char *w_word; 175 int w_value; 176} wordtab_t; 177 178 179typedef struct namelist { 180 struct namelist *na_next; 181 char *na_name; 182 int na_value; 183} namelist_t; 184 185 186typedef struct proxyrule { 187 struct proxyrule *pr_next; 188 char *pr_proxy; 189 char *pr_conf; 190 namelist_t *pr_names; 191 int pr_proto; 192} proxyrule_t; 193 194 195#if defined(__NetBSD__) || defined(__OpenBSD__) || \ 196 (_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000) || \ 197 SOLARIS || defined(__sgi) || defined(__osf__) || defined(linux) 198# include <stdarg.h> 199typedef int (* ioctlfunc_t) __P((int, ioctlcmd_t, ...)); 200#else 201typedef int (* ioctlfunc_t) __P((dev_t, ioctlcmd_t, void *)); 202#endif 203typedef int (* addfunc_t) __P((int, ioctlfunc_t, void *)); 204typedef int (* copyfunc_t) __P((void *, void *, size_t)); 205 206 207/* 208 * SunOS4 209 */ 210#if defined(sun) && !defined(__SVR4) && !defined(__svr4__) 211extern int ioctl __P((int, int, void *)); 212#endif 213 214extern char thishost[]; 215extern char flagset[]; 216extern u_char flags[]; 217extern struct ipopt_names ionames[]; 218extern struct ipopt_names secclass[]; 219extern char *icmpcodes[MAX_ICMPCODE + 1]; 220extern char *icmptypes[MAX_ICMPTYPE + 1]; 221extern int use_inet6; 222extern int lineNum; 223extern int debuglevel; 224extern struct ipopt_names v6ionames[]; 225extern icmptype_t icmptypelist[]; 226extern wordtab_t statefields[]; 227extern wordtab_t natfields[]; 228extern wordtab_t poolfields[]; 229 230 231extern int addicmp __P((char ***, struct frentry *, int)); 232extern int addipopt __P((char *, struct ipopt_names *, int, char *)); 233extern int addkeep __P((char ***, struct frentry *, int)); 234extern alist_t *alist_new __P((int, char *)); 235extern void alist_free __P((alist_t *)); 236extern void assigndefined __P((char *)); 237extern void binprint __P((void *, size_t)); 238extern u_32_t buildopts __P((char *, char *, int)); 239extern int checkrev __P((char *)); 240extern int connecttcp __P((char *, int)); 241extern int count6bits __P((u_32_t *)); 242extern int count4bits __P((u_32_t)); 243extern char *fac_toname __P((int)); 244extern int fac_findname __P((char *)); 245extern const char *familyname __P((const int)); 246extern void fill6bits __P((int, u_int *)); 247extern wordtab_t *findword __P((wordtab_t *, char *)); 248extern int ftov __P((int)); 249extern char *ipf_geterror __P((int, ioctlfunc_t *)); 250extern int genmask __P((int, char *, i6addr_t *)); 251extern int gethost __P((int, char *, i6addr_t *)); 252extern int geticmptype __P((int, char *)); 253extern int getport __P((struct frentry *, char *, u_short *, char *)); 254extern int getportproto __P((char *, int)); 255extern int getproto __P((char *)); 256extern char *getnattype __P((struct nat *)); 257extern char *getsumd __P((u_32_t)); 258extern u_32_t getoptbyname __P((char *)); 259extern u_32_t getoptbyvalue __P((int)); 260extern u_32_t getv6optbyname __P((char *)); 261extern u_32_t getv6optbyvalue __P((int)); 262extern char *icmptypename __P((int, int)); 263extern void initparse __P((void)); 264extern void ipf_dotuning __P((int, char *, ioctlfunc_t)); 265extern int ipf_addrule __P((int, ioctlfunc_t, void *)); 266extern void ipf_mutex_clean __P((void)); 267extern int ipf_parsefile __P((int, addfunc_t, ioctlfunc_t *, char *)); 268extern int ipf_parsesome __P((int, addfunc_t, ioctlfunc_t *, FILE *)); 269extern void ipf_perror __P((int, char *)); 270extern int ipf_perror_fd __P(( int, ioctlfunc_t, char *)); 271extern void ipf_rwlock_clean __P((void)); 272extern char *ipf_strerror __P((int)); 273extern void ipferror __P((int, char *)); 274extern int ipmon_parsefile __P((char *)); 275extern int ipmon_parsesome __P((FILE *)); 276extern int ipnat_addrule __P((int, ioctlfunc_t, void *)); 277extern int ipnat_parsefile __P((int, addfunc_t, ioctlfunc_t, char *)); 278extern int ipnat_parsesome __P((int, addfunc_t, ioctlfunc_t, FILE *)); 279extern int ippool_parsefile __P((int, char *, ioctlfunc_t)); 280extern int ippool_parsesome __P((int, FILE *, ioctlfunc_t)); 281extern int kmemcpywrap __P((void *, void *, size_t)); 282extern char *kvatoname __P((ipfunc_t, ioctlfunc_t)); 283extern int load_dstlist __P((struct ippool_dst *, ioctlfunc_t, 284 ipf_dstnode_t *)); 285extern int load_dstlistnode __P((int, char *, struct ipf_dstnode *, 286 ioctlfunc_t)); 287extern alist_t *load_file __P((char *)); 288extern int load_hash __P((struct iphtable_s *, struct iphtent_s *, 289 ioctlfunc_t)); 290extern int load_hashnode __P((int, char *, struct iphtent_s *, int, 291 ioctlfunc_t)); 292extern alist_t *load_http __P((char *)); 293extern int load_pool __P((struct ip_pool_s *list, ioctlfunc_t)); 294extern int load_poolnode __P((int, char *, ip_pool_node_t *, int, ioctlfunc_t)); 295extern alist_t *load_url __P((char *)); 296extern alist_t *make_range __P((int, struct in_addr, struct in_addr)); 297extern void mb_hexdump __P((mb_t *, FILE *)); 298extern ipfunc_t nametokva __P((char *, ioctlfunc_t)); 299extern void nat_setgroupmap __P((struct ipnat *)); 300extern int ntomask __P((int, int, u_32_t *)); 301extern u_32_t optname __P((char ***, u_short *, int)); 302extern wordtab_t *parsefields __P((wordtab_t *, char *)); 303extern int *parseipfexpr __P((char *, char **)); 304extern int parsewhoisline __P((char *, addrfamily_t *, addrfamily_t *)); 305extern void pool_close __P((void)); 306extern int pool_fd __P((void)); 307extern int pool_ioctl __P((ioctlfunc_t, ioctlcmd_t, void *)); 308extern int pool_open __P((void)); 309extern char *portname __P((int, int)); 310extern int pri_findname __P((char *)); 311extern char *pri_toname __P((int)); 312extern void print_toif __P((int, char *, char *, struct frdest *)); 313extern void printaps __P((ap_session_t *, int, int)); 314extern void printaddr __P((int, int, char *, int, u_32_t *, u_32_t *)); 315extern void printbuf __P((char *, int, int)); 316extern void printfieldhdr __P((wordtab_t *, wordtab_t *)); 317extern void printfr __P((struct frentry *, ioctlfunc_t)); 318extern struct iphtable_s *printhash __P((struct iphtable_s *, copyfunc_t, 319 char *, int, wordtab_t *)); 320extern struct iphtable_s *printhash_live __P((iphtable_t *, int, char *, 321 int, wordtab_t *)); 322extern ippool_dst_t *printdstl_live __P((ippool_dst_t *, int, char *, 323 int, wordtab_t *)); 324extern void printhashdata __P((iphtable_t *, int)); 325extern struct iphtent_s *printhashnode __P((struct iphtable_s *, 326 struct iphtent_s *, 327 copyfunc_t, int, wordtab_t *)); 328extern void printhost __P((int, u_32_t *)); 329extern void printhostmask __P((int, u_32_t *, u_32_t *)); 330extern void printip __P((int, u_32_t *)); 331extern void printlog __P((struct frentry *)); 332extern void printlookup __P((char *, i6addr_t *addr, i6addr_t *mask)); 333extern void printmask __P((int, u_32_t *)); 334extern void printnataddr __P((int, char *, nat_addr_t *, int)); 335extern void printnatfield __P((nat_t *, int)); 336extern void printnatside __P((char *, nat_stat_side_t *)); 337extern void printpacket __P((int, mb_t *)); 338extern void printpacket6 __P((int, mb_t *)); 339extern struct ippool_dst *printdstlist __P((struct ippool_dst *, copyfunc_t, 340 char *, int, ipf_dstnode_t *, 341 wordtab_t *)); 342extern void printdstlistdata __P((ippool_dst_t *, int)); 343extern ipf_dstnode_t *printdstlistnode __P((ipf_dstnode_t *, copyfunc_t, 344 int, wordtab_t *)); 345extern void printdstlistpolicy __P((ippool_policy_t)); 346extern struct ip_pool_s *printpool __P((struct ip_pool_s *, copyfunc_t, 347 char *, int, wordtab_t *)); 348extern struct ip_pool_s *printpool_live __P((struct ip_pool_s *, int, 349 char *, int, wordtab_t *)); 350extern void printpooldata __P((ip_pool_t *, int)); 351extern void printpoolfield __P((void *, int, int)); 352extern struct ip_pool_node *printpoolnode __P((struct ip_pool_node *, 353 int, wordtab_t *)); 354extern void printproto __P((struct protoent *, int, struct ipnat *)); 355extern void printportcmp __P((int, struct frpcmp *)); 356extern void printstatefield __P((ipstate_t *, int)); 357extern void printtqtable __P((ipftq_t *)); 358extern void printtunable __P((ipftune_t *)); 359extern void printunit __P((int)); 360extern void optprint __P((u_short *, u_long, u_long)); 361#ifdef USE_INET6 362extern void optprintv6 __P((u_short *, u_long, u_long)); 363#endif 364extern int remove_hash __P((struct iphtable_s *, ioctlfunc_t)); 365extern int remove_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t)); 366extern int remove_pool __P((ip_pool_t *, ioctlfunc_t)); 367extern int remove_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t)); 368extern u_char tcpflags __P((char *)); 369extern void printc __P((struct frentry *)); 370extern void printC __P((int)); 371extern void emit __P((int, int, void *, struct frentry *)); 372extern u_char secbit __P((int)); 373extern u_char seclevel __P((char *)); 374extern void printfraginfo __P((char *, struct ipfr *)); 375extern void printifname __P((char *, char *, void *)); 376extern char *hostname __P((int, void *)); 377extern struct ipstate *printstate __P((struct ipstate *, int, u_long)); 378extern void printsbuf __P((char *)); 379extern void printnat __P((struct ipnat *, int)); 380extern void printactiveaddress __P((int, char *, i6addr_t *, char *)); 381extern void printactivenat __P((struct nat *, int, u_long)); 382extern void printhostmap __P((struct hostmap *, u_int)); 383extern void printtcpflags __P((u_32_t, u_32_t)); 384extern void printipfexpr __P((int *)); 385extern void printstatefield __P((ipstate_t *, int)); 386extern void printstatefieldhdr __P((int)); 387extern int sendtrap_v1_0 __P((int, char *, char *, int, time_t)); 388extern int sendtrap_v2_0 __P((int, char *, char *, int)); 389extern int vtof __P((int)); 390 391extern void set_variable __P((char *, char *)); 392extern char *get_variable __P((char *, char **, int)); 393extern void resetlexer __P((void)); 394 395extern void debug __P((int, char *, ...)); 396extern void verbose __P((int, char *, ...)); 397extern void ipfkdebug __P((char *, ...)); 398extern void ipfkverbose __P((char *, ...)); 399 400#if SOLARIS 401extern int gethostname __P((char *, int )); 402extern void sync __P((void)); 403#endif 404 405#endif /* __IPF_H__ */ 406