1 /* 2 * Copyright (C) 1993-2001, 2003 by Darren Reed. 3 * 4 * See the IPFILTER.LICENCE file for details on licencing. 5 * 6 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 7 * Use is subject to license terms. 8 */ 9 10 #ifndef __IPF_STACK_H__ 11 #define __IPF_STACK_H__ 12 13 /* FIXME: appears needed for ip_proxy.h - tcpseq */ 14 #include <net/route.h> 15 #include <netinet/in.h> 16 #include <netinet/in_systm.h> 17 #include <netinet/ip.h> 18 #include <netinet/ip_var.h> 19 #include <netinet/tcp.h> 20 #include <netinet/udp.h> 21 #include <netinet/ip_icmp.h> 22 #include <netinet/tcpip.h> 23 24 #include "ip_compat.h" 25 #include "ip_fil.h" 26 #include "ip_nat.h" 27 #include "ip_frag.h" 28 #include "ip_state.h" 29 #include "ip_proxy.h" 30 #include "ip_auth.h" 31 #include "ip_lookup.h" 32 #include "ip_pool.h" 33 #include "ip_htable.h" 34 #include <net/radix.h> 35 #include <sys/neti.h> 36 #include <sys/hook.h> 37 38 /* 39 * IPF stack instances 40 */ 41 struct ipf_stack { 42 struct ipf_stack *ifs_next; 43 struct ipf_stack **ifs_pnext; 44 netid_t ifs_netid; 45 zoneid_t ifs_zone; 46 47 /* ipf module */ 48 49 filterstats_t ifs_frstats[2]; 50 frentry_t *ifs_ipfilter[2][2]; 51 frentry_t *ifs_ipfilter6[2][2]; 52 frentry_t *ifs_ipacct6[2][2]; 53 frentry_t *ifs_ipacct[2][2]; 54 #if 0 /* not used */ 55 frentry_t *ifs_ipnatrules[2][2]; 56 #endif 57 frgroup_t *ifs_ipfgroups[IPL_LOGSIZE][2]; 58 int ifs_fr_refcnt; 59 /* 60 * For fr_running: 61 * 0 == loading, 1 = running, -1 = disabled, -2 = unloading 62 */ 63 int ifs_fr_running; 64 int ifs_fr_flags; 65 int ifs_fr_active; 66 int ifs_fr_control_forwarding; 67 int ifs_fr_update_ipid; 68 #if 0 69 ushort_t ifs_fr_ip_id; 70 #endif 71 int ifs_fr_chksrc; 72 int ifs_fr_minttl; 73 int ifs_fr_icmpminfragmtu; 74 int ifs_fr_pass; 75 ulong_t ifs_fr_frouteok[2]; 76 ulong_t ifs_fr_userifqs; 77 ulong_t ifs_fr_badcoalesces[2]; 78 uchar_t ifs_ipf_iss_secret[32]; 79 timeout_id_t ifs_fr_timer_id; 80 #if 0 81 timeout_id_t ifs_synctimeoutid; 82 #endif 83 int ifs_ipf_locks_done; 84 85 ipftoken_t *ifs_ipftokenhead; 86 ipftoken_t **ifs_ipftokentail; 87 88 ipfmutex_t ifs_ipl_mutex; 89 ipfmutex_t ifs_ipf_authmx; 90 ipfmutex_t ifs_ipf_rw; 91 ipfmutex_t ifs_ipf_timeoutlock; 92 ipfrwlock_t ifs_ipf_mutex; 93 ipfrwlock_t ifs_ipf_global; 94 ipfrwlock_t ifs_ip_poolrw; 95 ipfrwlock_t ifs_ipf_frag; 96 ipfrwlock_t ifs_ipf_state; 97 ipfrwlock_t ifs_ipf_nat; 98 ipfrwlock_t ifs_ipf_natfrag; 99 ipfmutex_t ifs_ipf_nat_new; 100 ipfmutex_t ifs_ipf_natio; 101 ipfrwlock_t ifs_ipf_auth; 102 ipfmutex_t ifs_ipf_stinsert; 103 ipfrwlock_t ifs_ipf_ipidfrag; 104 ipfrwlock_t ifs_ipf_tokens; 105 kcondvar_t ifs_iplwait; 106 kcondvar_t ifs_ipfauthwait; 107 108 ipftuneable_t *ifs_ipf_tuneables; 109 ipftuneable_t *ifs_ipf_tunelist; 110 111 /* ip_fil_solaris.c */ 112 hook_t *ifs_ipfhook4_in; 113 hook_t *ifs_ipfhook4_out; 114 hook_t *ifs_ipfhook4_loop_in; 115 hook_t *ifs_ipfhook4_loop_out; 116 hook_t *ifs_ipfhook4_nicevents; 117 hook_t *ifs_ipfhook6_in; 118 hook_t *ifs_ipfhook6_out; 119 hook_t *ifs_ipfhook6_loop_in; 120 hook_t *ifs_ipfhook6_loop_out; 121 hook_t *ifs_ipfhook6_nicevents; 122 123 /* flags to indicate whether hooks are registered. */ 124 boolean_t ifs_hook4_physical_in; 125 boolean_t ifs_hook4_physical_out; 126 boolean_t ifs_hook4_nic_events; 127 boolean_t ifs_hook4_loopback_in; 128 boolean_t ifs_hook4_loopback_out; 129 boolean_t ifs_hook6_physical_in; 130 boolean_t ifs_hook6_physical_out; 131 boolean_t ifs_hook6_nic_events; 132 boolean_t ifs_hook6_loopback_in; 133 boolean_t ifs_hook6_loopback_out; 134 135 int ifs_ipf_loopback; 136 net_handle_t ifs_ipf_ipv4; 137 net_handle_t ifs_ipf_ipv6; 138 139 /* ip_auth.c */ 140 int ifs_fr_authsize; 141 int ifs_fr_authused; 142 int ifs_fr_defaultauthage; 143 int ifs_fr_auth_lock; 144 int ifs_fr_auth_init; 145 fr_authstat_t ifs_fr_authstats; 146 frauth_t *ifs_fr_auth; 147 mb_t **ifs_fr_authpkts; 148 int ifs_fr_authstart; 149 int ifs_fr_authend; 150 int ifs_fr_authnext; 151 frauthent_t *ifs_fae_list; 152 frentry_t *ifs_ipauth; 153 frentry_t *ifs_fr_authlist; 154 155 /* ip_frag.c */ 156 ipfr_t *ifs_ipfr_list; 157 ipfr_t **ifs_ipfr_tail; 158 ipfr_t **ifs_ipfr_heads; 159 160 ipfr_t *ifs_ipfr_natlist; 161 ipfr_t **ifs_ipfr_nattail; 162 ipfr_t **ifs_ipfr_nattab; 163 164 ipfr_t *ifs_ipfr_ipidlist; 165 ipfr_t **ifs_ipfr_ipidtail; 166 ipfr_t **ifs_ipfr_ipidtab; 167 168 ipfrstat_t ifs_ipfr_stats; 169 int ifs_ipfr_inuse; 170 int ifs_ipfr_size; 171 172 int ifs_fr_ipfrttl; 173 int ifs_fr_frag_lock; 174 int ifs_fr_frag_init; 175 ulong_t ifs_fr_ticks; 176 177 frentry_t ifs_frblock; 178 179 /* ip_htable.c */ 180 iphtable_t *ifs_ipf_htables[IPL_LOGSIZE]; 181 ulong_t ifs_ipht_nomem[IPL_LOGSIZE]; 182 ulong_t ifs_ipf_nhtables[IPL_LOGSIZE]; 183 ulong_t ifs_ipf_nhtnodes[IPL_LOGSIZE]; 184 185 /* ip_log.c */ 186 iplog_t **ifs_iplh[IPL_LOGSIZE]; 187 iplog_t *ifs_iplt[IPL_LOGSIZE]; 188 iplog_t *ifs_ipll[IPL_LOGSIZE]; 189 int ifs_iplused[IPL_LOGSIZE]; 190 fr_info_t ifs_iplcrc[IPL_LOGSIZE]; 191 int ifs_ipl_suppress; 192 int ifs_ipl_buffer_sz; 193 int ifs_ipl_logmax; 194 int ifs_ipl_logall; 195 int ifs_ipl_log_init; 196 int ifs_ipl_logsize; 197 198 /* ip_lookup.c */ 199 ip_pool_stat_t ifs_ippoolstat; 200 int ifs_ip_lookup_inited; 201 202 /* ip_nat.c */ 203 /* nat_table[0] -> hashed list sorted by inside (ip, port) */ 204 /* nat_table[1] -> hashed list sorted by outside (ip, port) */ 205 nat_t **ifs_nat_table[2]; 206 nat_t *ifs_nat_instances; 207 ipnat_t *ifs_nat_list; 208 uint_t ifs_ipf_nattable_sz; 209 uint_t ifs_ipf_nattable_max; 210 uint_t ifs_ipf_natrules_sz; 211 uint_t ifs_ipf_rdrrules_sz; 212 uint_t ifs_ipf_hostmap_sz; 213 uint_t ifs_fr_nat_maxbucket; 214 uint_t ifs_fr_nat_maxbucket_reset; 215 uint32_t ifs_nat_masks; 216 uint32_t ifs_rdr_masks; 217 uint32_t ifs_nat6_masks[4]; 218 uint32_t ifs_rdr6_masks[4]; 219 ipnat_t **ifs_nat_rules; 220 ipnat_t **ifs_rdr_rules; 221 hostmap_t **ifs_maptable; 222 hostmap_t *ifs_ipf_hm_maplist; 223 224 ipftq_t ifs_nat_tqb[IPF_TCP_NSTATES]; 225 ipftq_t ifs_nat_udptq; 226 ipftq_t ifs_nat_icmptq; 227 ipftq_t ifs_nat_iptq; 228 ipftq_t *ifs_nat_utqe; 229 int ifs_nat_logging; 230 ulong_t ifs_fr_defnatage; 231 ulong_t ifs_fr_defnatipage; 232 ulong_t ifs_fr_defnaticmpage; 233 natstat_t ifs_nat_stats; 234 int ifs_fr_nat_lock; 235 int ifs_fr_nat_init; 236 uint_t ifs_nat_flush_lvl_hi; 237 uint_t ifs_nat_flush_lvl_lo; 238 ulong_t ifs_nat_last_force_flush; 239 int ifs_nat_doflush; 240 241 /* ip_pool.c */ 242 ip_pool_stat_t ifs_ipoolstat; 243 ip_pool_t *ifs_ip_pool_list[IPL_LOGSIZE]; 244 245 /* ip_proxy.c */ 246 ap_session_t *ifs_ap_sess_list; 247 aproxy_t *ifs_ap_proxylist; 248 aproxy_t *ifs_ap_proxies; /* copy of lcl_ap_proxies */ 249 250 /* ip_state.c */ 251 ipstate_t **ifs_ips_table; 252 ulong_t *ifs_ips_seed; 253 int ifs_ips_num; 254 ulong_t ifs_ips_last_force_flush; 255 ips_stat_t ifs_ips_stats; 256 257 ulong_t ifs_fr_tcpidletimeout; 258 ulong_t ifs_fr_tcpclosewait; 259 ulong_t ifs_fr_tcplastack; 260 ulong_t ifs_fr_tcptimeout; 261 ulong_t ifs_fr_tcpclosed; 262 ulong_t ifs_fr_tcphalfclosed; 263 ulong_t ifs_fr_udptimeout; 264 ulong_t ifs_fr_udpacktimeout; 265 ulong_t ifs_fr_icmptimeout; 266 ulong_t ifs_fr_icmpacktimeout; 267 int ifs_fr_statemax; 268 int ifs_fr_statesize; 269 int ifs_fr_state_doflush; 270 int ifs_fr_state_lock; 271 int ifs_fr_state_maxbucket; 272 int ifs_fr_state_maxbucket_reset; 273 int ifs_fr_state_init; 274 ipftq_t ifs_ips_tqtqb[IPF_TCP_NSTATES]; 275 ipftq_t ifs_ips_udptq; 276 ipftq_t ifs_ips_udpacktq; 277 ipftq_t ifs_ips_iptq; 278 ipftq_t ifs_ips_icmptq; 279 ipftq_t ifs_ips_icmpacktq; 280 ipftq_t ifs_ips_deletetq; 281 ipftq_t *ifs_ips_utqe; 282 int ifs_ipstate_logging; 283 ipstate_t *ifs_ips_list; 284 ulong_t ifs_fr_iptimeout; 285 286 /* radix.c */ 287 int ifs_max_keylen; 288 struct radix_mask *ifs_rn_mkfreelist; 289 struct radix_node_head *ifs_mask_rnhead; 290 char *ifs_addmask_key; 291 char *ifs_rn_zeros; 292 char *ifs_rn_ones; 293 #ifdef KERNEL 294 /* kstats for inbound and outbound */ 295 kstat_t *ifs_kstatp[2]; 296 #endif 297 }; 298 299 #endif /* __IPF_STACK_H__ */ 300