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