npf_impl.h revision 1.59.2.3
1 1.59.2.3 skrll /* $NetBSD: npf_impl.h,v 1.59.2.3 2017/08/28 17:53:11 skrll Exp $ */ 2 1.1 rmind 3 1.1 rmind /*- 4 1.47 rmind * Copyright (c) 2009-2014 The NetBSD Foundation, Inc. 5 1.1 rmind * All rights reserved. 6 1.1 rmind * 7 1.1 rmind * This material is based upon work partially supported by The 8 1.1 rmind * NetBSD Foundation under a contract with Mindaugas Rasiukevicius. 9 1.1 rmind * 10 1.1 rmind * Redistribution and use in source and binary forms, with or without 11 1.1 rmind * modification, are permitted provided that the following conditions 12 1.1 rmind * are met: 13 1.1 rmind * 1. Redistributions of source code must retain the above copyright 14 1.1 rmind * notice, this list of conditions and the following disclaimer. 15 1.1 rmind * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 rmind * notice, this list of conditions and the following disclaimer in the 17 1.1 rmind * documentation and/or other materials provided with the distribution. 18 1.1 rmind * 19 1.1 rmind * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.1 rmind * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.1 rmind * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.1 rmind * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.1 rmind * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.1 rmind * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.1 rmind * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1 rmind * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.1 rmind * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.1 rmind * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.1 rmind * POSSIBILITY OF SUCH DAMAGE. 30 1.1 rmind */ 31 1.1 rmind 32 1.1 rmind /* 33 1.1 rmind * Private NPF structures and interfaces. 34 1.1 rmind * For internal use within NPF core only. 35 1.1 rmind */ 36 1.1 rmind 37 1.1 rmind #ifndef _NPF_IMPL_H_ 38 1.1 rmind #define _NPF_IMPL_H_ 39 1.1 rmind 40 1.59.2.2 skrll #if !defined(_KERNEL) && !defined(_NPF_STANDALONE) 41 1.7 rmind #error "Kernel-level header only" 42 1.7 rmind #endif 43 1.7 rmind 44 1.17 rmind #ifdef _KERNEL_OPT 45 1.17 rmind /* For INET/INET6 definitions. */ 46 1.17 rmind #include "opt_inet.h" 47 1.17 rmind #include "opt_inet6.h" 48 1.17 rmind #endif 49 1.17 rmind 50 1.59.2.2 skrll #ifdef _KERNEL 51 1.4 rmind #include <sys/types.h> 52 1.4 rmind #include <sys/queue.h> 53 1.59.2.2 skrll #include <sys/rbtree.h> 54 1.32 rmind 55 1.32 rmind #include <net/bpf.h> 56 1.32 rmind #include <net/bpfjit.h> 57 1.6 rmind #include <net/if.h> 58 1.59.2.2 skrll #endif 59 1.1 rmind 60 1.1 rmind #include "npf.h" 61 1.59.2.2 skrll #include "npfkern.h" 62 1.1 rmind 63 1.6 rmind #ifdef _NPF_DEBUG 64 1.6 rmind #define NPF_PRINTF(x) printf x 65 1.6 rmind #else 66 1.6 rmind #define NPF_PRINTF(x) 67 1.6 rmind #endif 68 1.6 rmind 69 1.1 rmind /* 70 1.1 rmind * STRUCTURE DECLARATIONS. 71 1.1 rmind */ 72 1.1 rmind 73 1.7 rmind struct npf_ruleset; 74 1.7 rmind struct npf_rule; 75 1.26 rmind struct npf_rprocset; 76 1.1 rmind struct npf_nat; 77 1.54 rmind struct npf_conn; 78 1.59.2.2 skrll struct npf_config; 79 1.1 rmind 80 1.7 rmind typedef struct npf_ruleset npf_ruleset_t; 81 1.7 rmind typedef struct npf_rule npf_rule_t; 82 1.1 rmind typedef struct npf_nat npf_nat_t; 83 1.26 rmind typedef struct npf_rprocset npf_rprocset_t; 84 1.1 rmind typedef struct npf_alg npf_alg_t; 85 1.1 rmind typedef struct npf_natpolicy npf_natpolicy_t; 86 1.54 rmind typedef struct npf_conn npf_conn_t; 87 1.59.2.2 skrll typedef struct npf_config npf_config_t; 88 1.1 rmind 89 1.54 rmind struct npf_conndb; 90 1.1 rmind struct npf_table; 91 1.38 rmind struct npf_tableset; 92 1.59.2.2 skrll struct npf_algset; 93 1.59.2.2 skrll struct npf_ifmap; 94 1.1 rmind 95 1.54 rmind typedef struct npf_conndb npf_conndb_t; 96 1.1 rmind typedef struct npf_table npf_table_t; 97 1.38 rmind typedef struct npf_tableset npf_tableset_t; 98 1.59.2.2 skrll typedef struct npf_algset npf_algset_t; 99 1.1 rmind 100 1.1 rmind /* 101 1.1 rmind * DEFINITIONS. 102 1.1 rmind */ 103 1.1 rmind 104 1.59.2.2 skrll typedef void (*npf_workfunc_t)(npf_t *); 105 1.1 rmind 106 1.45 rmind /* 107 1.45 rmind * Some artificial limits. 108 1.45 rmind * Note: very unlikely to have many ALGs. 109 1.45 rmind */ 110 1.34 rmind #define NPF_MAX_RULES (1024 * 1024) 111 1.38 rmind #define NPF_MAX_TABLES 128 112 1.38 rmind #define NPF_MAX_RPROCS 128 113 1.37 rmind #define NPF_MAX_IFMAP 64 114 1.59.2.2 skrll #define NPF_MAX_ALGS 4 115 1.59.2.2 skrll #define NPF_MAX_WORKS 4 116 1.1 rmind 117 1.1 rmind /* 118 1.57 rmind * CONNECTION STATE STRUCTURES 119 1.4 rmind */ 120 1.4 rmind 121 1.9 rmind #define NPF_FLOW_FORW 0 122 1.9 rmind #define NPF_FLOW_BACK 1 123 1.9 rmind 124 1.4 rmind typedef struct { 125 1.9 rmind uint32_t nst_end; 126 1.9 rmind uint32_t nst_maxend; 127 1.9 rmind uint32_t nst_maxwin; 128 1.9 rmind int nst_wscale; 129 1.4 rmind } npf_tcpstate_t; 130 1.4 rmind 131 1.4 rmind typedef struct { 132 1.36 rmind u_int nst_state; 133 1.4 rmind npf_tcpstate_t nst_tcpst[2]; 134 1.4 rmind } npf_state_t; 135 1.4 rmind 136 1.4 rmind /* 137 1.48 rmind * ALG FUNCTIONS. 138 1.48 rmind */ 139 1.48 rmind 140 1.48 rmind typedef struct { 141 1.55 rmind bool (*match)(npf_cache_t *, npf_nat_t *, int); 142 1.55 rmind bool (*translate)(npf_cache_t *, npf_nat_t *, bool); 143 1.55 rmind npf_conn_t * (*inspect)(npf_cache_t *, int); 144 1.48 rmind } npfa_funcs_t; 145 1.48 rmind 146 1.48 rmind /* 147 1.59.2.2 skrll * NBUF STRUCTURE. 148 1.59.2.2 skrll */ 149 1.59.2.2 skrll 150 1.59.2.2 skrll struct nbuf { 151 1.59.2.2 skrll struct mbuf * nb_mbuf0; 152 1.59.2.2 skrll struct mbuf * nb_mbuf; 153 1.59.2.2 skrll void * nb_nptr; 154 1.59.2.2 skrll const ifnet_t * nb_ifp; 155 1.59.2.2 skrll unsigned nb_ifid; 156 1.59.2.2 skrll int nb_flags; 157 1.59.2.2 skrll const npf_mbufops_t *nb_mops; 158 1.59.2.2 skrll }; 159 1.59.2.2 skrll 160 1.59.2.2 skrll /* 161 1.59.2.2 skrll * NPF INSTANCE (CONTEXT) STRUCTURE AND AUXILIARY OPERATIONS. 162 1.59.2.2 skrll */ 163 1.59.2.2 skrll 164 1.59.2.2 skrll struct npf { 165 1.59.2.2 skrll /* Active NPF configuration. */ 166 1.59.2.2 skrll kmutex_t config_lock; 167 1.59.2.2 skrll pserialize_t qsbr; 168 1.59.2.2 skrll npf_config_t * config; 169 1.59.2.2 skrll 170 1.59.2.2 skrll /* BPF byte-code context. */ 171 1.59.2.2 skrll bpf_ctx_t * bpfctx; 172 1.59.2.2 skrll const npf_mbufops_t * mbufops; 173 1.59.2.2 skrll 174 1.59.2.2 skrll /* 175 1.59.2.2 skrll * Connection tracking state: disabled (off) or enabled (on). 176 1.59.2.2 skrll * Connection tracking database, connection cache and the lock. 177 1.59.2.2 skrll */ 178 1.59.2.2 skrll volatile int conn_tracking; 179 1.59.2.2 skrll kmutex_t conn_lock; 180 1.59.2.2 skrll npf_conndb_t * conn_db; 181 1.59.2.2 skrll pool_cache_t conn_cache; 182 1.59.2.2 skrll 183 1.59.2.2 skrll /* ALGs. */ 184 1.59.2.2 skrll npf_algset_t * algset; 185 1.59.2.2 skrll 186 1.59.2.2 skrll /* Interface mapping. */ 187 1.59.2.2 skrll const npf_ifops_t * ifops; 188 1.59.2.2 skrll struct npf_ifmap * ifmap; 189 1.59.2.2 skrll unsigned ifmap_cnt; 190 1.59.2.2 skrll 191 1.59.2.2 skrll /* Associated worker thread. */ 192 1.59.2.2 skrll unsigned worker_id; 193 1.59.2.2 skrll void * worker_entry; 194 1.59.2.2 skrll 195 1.59.2.2 skrll /* List of extensions and its lock. */ 196 1.59.2.2 skrll LIST_HEAD(, npf_ext) ext_list; 197 1.59.2.2 skrll kmutex_t ext_lock; 198 1.59.2.2 skrll 199 1.59.2.2 skrll /* Statistics. */ 200 1.59.2.2 skrll percpu_t * stats_percpu; 201 1.59.2.2 skrll }; 202 1.59.2.2 skrll 203 1.59.2.2 skrll /* 204 1.1 rmind * INTERFACES. 205 1.1 rmind */ 206 1.1 rmind 207 1.26 rmind /* NPF config, statistics, etc. */ 208 1.59.2.2 skrll void npf_config_init(npf_t *); 209 1.59.2.2 skrll void npf_config_fini(npf_t *); 210 1.26 rmind 211 1.59.2.2 skrll void npf_config_enter(npf_t *); 212 1.59.2.2 skrll void npf_config_exit(npf_t *); 213 1.59.2.2 skrll void npf_config_sync(npf_t *); 214 1.59.2.2 skrll bool npf_config_locked_p(npf_t *); 215 1.26 rmind int npf_config_read_enter(void); 216 1.59.2.2 skrll void npf_config_read_exit(int s); 217 1.26 rmind 218 1.59.2.2 skrll void npf_config_load(npf_t *, npf_ruleset_t *, npf_tableset_t *, 219 1.58 rmind npf_ruleset_t *, npf_rprocset_t *, npf_conndb_t *, bool); 220 1.59.2.2 skrll npf_ruleset_t * npf_config_ruleset(npf_t *npf); 221 1.59.2.2 skrll npf_ruleset_t * npf_config_natset(npf_t *npf); 222 1.59.2.2 skrll npf_tableset_t *npf_config_tableset(npf_t *npf); 223 1.59.2.2 skrll npf_rprocset_t *npf_config_rprocs(npf_t *); 224 1.59.2.2 skrll bool npf_default_pass(npf_t *); 225 1.5 rmind 226 1.59.2.2 skrll int npf_worker_sysinit(unsigned); 227 1.31 rmind void npf_worker_sysfini(void); 228 1.59.2.2 skrll void npf_worker_signal(npf_t *); 229 1.59.2.2 skrll void npf_worker_register(npf_t *, npf_workfunc_t); 230 1.59.2.2 skrll void npf_worker_unregister(npf_t *, npf_workfunc_t); 231 1.31 rmind 232 1.1 rmind int npfctl_switch(void *); 233 1.1 rmind int npfctl_reload(u_long, void *); 234 1.59.2.2 skrll int npfctl_save(npf_t *, u_long, void *); 235 1.59.2.2 skrll int npfctl_load(npf_t *, u_long, void *); 236 1.59.2.2 skrll int npfctl_rule(npf_t *, u_long, void *); 237 1.59.2.2 skrll int npfctl_conn_lookup(npf_t *, u_long, void *); 238 1.59.2.2 skrll int npfctl_table(npf_t *, void *); 239 1.59.2.2 skrll 240 1.59.2.2 skrll void npf_stats_inc(npf_t *, npf_stats_t); 241 1.59.2.2 skrll void npf_stats_dec(npf_t *, npf_stats_t); 242 1.59.2.2 skrll 243 1.59.2.2 skrll void npf_ifmap_init(npf_t *, const npf_ifops_t *); 244 1.59.2.2 skrll void npf_ifmap_fini(npf_t *); 245 1.59.2.2 skrll u_int npf_ifmap_register(npf_t *, const char *); 246 1.59.2.2 skrll void npf_ifmap_flush(npf_t *); 247 1.59.2.2 skrll u_int npf_ifmap_getid(npf_t *, const ifnet_t *); 248 1.59.2.2 skrll const char * npf_ifmap_getname(npf_t *, const u_int); 249 1.59.2.3 skrll void npf_ifmap_copyname(npf_t *, u_int, char *, size_t); 250 1.59.2.2 skrll 251 1.59.2.2 skrll void npf_ifaddr_sync(npf_t *, ifnet_t *); 252 1.59.2.2 skrll void npf_ifaddr_flush(npf_t *, ifnet_t *); 253 1.59.2.2 skrll void npf_ifaddr_syncall(npf_t *); 254 1.37 rmind 255 1.1 rmind /* Packet filter hooks. */ 256 1.37 rmind int npf_pfil_register(bool); 257 1.37 rmind void npf_pfil_unregister(bool); 258 1.12 rmind bool npf_pfil_registered_p(void); 259 1.1 rmind 260 1.1 rmind /* Protocol helpers. */ 261 1.55 rmind int npf_cache_all(npf_cache_t *); 262 1.55 rmind void npf_recache(npf_cache_t *); 263 1.1 rmind 264 1.45 rmind bool npf_rwrip(const npf_cache_t *, u_int, const npf_addr_t *); 265 1.45 rmind bool npf_rwrport(const npf_cache_t *, u_int, const in_port_t); 266 1.45 rmind bool npf_rwrcksum(const npf_cache_t *, u_int, 267 1.25 rmind const npf_addr_t *, const in_port_t); 268 1.49 rmind int npf_napt_rwr(const npf_cache_t *, u_int, const npf_addr_t *, 269 1.49 rmind const in_addr_t); 270 1.47 rmind int npf_npt66_rwr(const npf_cache_t *, u_int, const npf_addr_t *, 271 1.47 rmind npf_netmask_t, uint16_t); 272 1.1 rmind 273 1.1 rmind uint16_t npf_fixup16_cksum(uint16_t, uint16_t, uint16_t); 274 1.1 rmind uint16_t npf_fixup32_cksum(uint16_t, uint32_t, uint32_t); 275 1.25 rmind uint16_t npf_addr_cksum(uint16_t, int, const npf_addr_t *, 276 1.25 rmind const npf_addr_t *); 277 1.42 rmind uint32_t npf_addr_mix(const int, const npf_addr_t *, const npf_addr_t *); 278 1.16 rmind int npf_addr_cmp(const npf_addr_t *, const npf_netmask_t, 279 1.17 rmind const npf_addr_t *, const npf_netmask_t, const int); 280 1.16 rmind void npf_addr_mask(const npf_addr_t *, const npf_netmask_t, 281 1.17 rmind const int, npf_addr_t *); 282 1.16 rmind 283 1.16 rmind int npf_tcpsaw(const npf_cache_t *, tcp_seq *, tcp_seq *, 284 1.16 rmind uint32_t *); 285 1.55 rmind bool npf_fetch_tcpopts(npf_cache_t *, uint16_t *, int *); 286 1.55 rmind bool npf_return_block(npf_cache_t *, const int); 287 1.2 rmind 288 1.32 rmind /* BPF interface. */ 289 1.32 rmind void npf_bpf_sysinit(void); 290 1.32 rmind void npf_bpf_sysfini(void); 291 1.55 rmind void npf_bpf_prepare(npf_cache_t *, bpf_args_t *, uint32_t *); 292 1.43 rmind int npf_bpf_filter(bpf_args_t *, const void *, bpfjit_func_t); 293 1.40 rmind void * npf_bpf_compile(void *, size_t); 294 1.32 rmind bool npf_bpf_validate(const void *, size_t); 295 1.32 rmind 296 1.1 rmind /* Tableset interface. */ 297 1.5 rmind void npf_tableset_sysinit(void); 298 1.1 rmind void npf_tableset_sysfini(void); 299 1.1 rmind 300 1.38 rmind npf_tableset_t *npf_tableset_create(u_int); 301 1.1 rmind void npf_tableset_destroy(npf_tableset_t *); 302 1.1 rmind int npf_tableset_insert(npf_tableset_t *, npf_table_t *); 303 1.38 rmind npf_table_t * npf_tableset_getbyname(npf_tableset_t *, const char *); 304 1.38 rmind npf_table_t * npf_tableset_getbyid(npf_tableset_t *, u_int); 305 1.59.2.2 skrll npf_table_t * npf_tableset_swap(npf_tableset_t *, npf_table_t *); 306 1.59.2.2 skrll void npf_tableset_reload(npf_t *, npf_tableset_t *, npf_tableset_t *); 307 1.59.2.2 skrll int npf_tableset_export(npf_t *, const npf_tableset_t *, prop_array_t); 308 1.1 rmind 309 1.46 rmind npf_table_t * npf_table_create(const char *, u_int, int, void *, size_t); 310 1.1 rmind void npf_table_destroy(npf_table_t *); 311 1.1 rmind 312 1.59.2.2 skrll u_int npf_table_getid(npf_table_t *); 313 1.38 rmind int npf_table_check(npf_tableset_t *, const char *, u_int, int); 314 1.38 rmind int npf_table_insert(npf_table_t *, const int, 315 1.38 rmind const npf_addr_t *, const npf_netmask_t); 316 1.38 rmind int npf_table_remove(npf_table_t *, const int, 317 1.38 rmind const npf_addr_t *, const npf_netmask_t); 318 1.38 rmind int npf_table_lookup(npf_table_t *, const int, const npf_addr_t *); 319 1.38 rmind int npf_table_list(npf_table_t *, void *, size_t); 320 1.38 rmind int npf_table_flush(npf_table_t *); 321 1.1 rmind 322 1.1 rmind /* Ruleset interface. */ 323 1.26 rmind npf_ruleset_t * npf_ruleset_create(size_t); 324 1.1 rmind void npf_ruleset_destroy(npf_ruleset_t *); 325 1.1 rmind void npf_ruleset_insert(npf_ruleset_t *, npf_rule_t *); 326 1.59.2.2 skrll void npf_ruleset_reload(npf_t *, npf_ruleset_t *, 327 1.59.2.2 skrll npf_ruleset_t *, bool); 328 1.6 rmind npf_rule_t * npf_ruleset_sharepm(npf_ruleset_t *, npf_natpolicy_t *); 329 1.56 rmind npf_natpolicy_t *npf_ruleset_findnat(npf_ruleset_t *, uint64_t); 330 1.18 rmind void npf_ruleset_freealg(npf_ruleset_t *, npf_alg_t *); 331 1.59.2.2 skrll int npf_ruleset_export(npf_t *, const npf_ruleset_t *, prop_array_t); 332 1.1 rmind 333 1.26 rmind int npf_ruleset_add(npf_ruleset_t *, const char *, npf_rule_t *); 334 1.28 rmind int npf_ruleset_remove(npf_ruleset_t *, const char *, uint64_t); 335 1.27 rmind int npf_ruleset_remkey(npf_ruleset_t *, const char *, 336 1.26 rmind const void *, size_t); 337 1.59.2.2 skrll prop_dictionary_t npf_ruleset_list(npf_t *, npf_ruleset_t *, const char *); 338 1.27 rmind int npf_ruleset_flush(npf_ruleset_t *, const char *); 339 1.27 rmind void npf_ruleset_gc(npf_ruleset_t *); 340 1.26 rmind 341 1.55 rmind npf_rule_t * npf_ruleset_inspect(npf_cache_t *, const npf_ruleset_t *, 342 1.55 rmind const int, const int); 343 1.59.2.2 skrll int npf_rule_conclude(const npf_rule_t *, npf_match_info_t *); 344 1.5 rmind 345 1.7 rmind /* Rule interface. */ 346 1.59.2.2 skrll npf_rule_t * npf_rule_alloc(npf_t *, prop_dictionary_t); 347 1.26 rmind void npf_rule_setcode(npf_rule_t *, int, void *, size_t); 348 1.26 rmind void npf_rule_setrproc(npf_rule_t *, npf_rproc_t *); 349 1.7 rmind void npf_rule_free(npf_rule_t *); 350 1.28 rmind uint64_t npf_rule_getid(const npf_rule_t *); 351 1.1 rmind npf_natpolicy_t *npf_rule_getnat(const npf_rule_t *); 352 1.1 rmind void npf_rule_setnat(npf_rule_t *, npf_natpolicy_t *); 353 1.44 rmind npf_rproc_t * npf_rule_getrproc(const npf_rule_t *); 354 1.1 rmind 355 1.59.2.2 skrll void npf_ext_init(npf_t *); 356 1.59.2.2 skrll void npf_ext_fini(npf_t *); 357 1.59.2.2 skrll int npf_ext_construct(npf_t *, const char *, 358 1.23 rmind npf_rproc_t *, prop_dictionary_t); 359 1.23 rmind 360 1.26 rmind npf_rprocset_t *npf_rprocset_create(void); 361 1.26 rmind void npf_rprocset_destroy(npf_rprocset_t *); 362 1.26 rmind npf_rproc_t * npf_rprocset_lookup(npf_rprocset_t *, const char *); 363 1.26 rmind void npf_rprocset_insert(npf_rprocset_t *, npf_rproc_t *); 364 1.58 rmind int npf_rprocset_export(const npf_rprocset_t *, prop_array_t); 365 1.26 rmind 366 1.5 rmind npf_rproc_t * npf_rproc_create(prop_dictionary_t); 367 1.10 rmind void npf_rproc_acquire(npf_rproc_t *); 368 1.5 rmind void npf_rproc_release(npf_rproc_t *); 369 1.59.2.2 skrll const char * npf_rproc_getname(const npf_rproc_t *); 370 1.59.2.2 skrll bool npf_rproc_run(npf_cache_t *, npf_rproc_t *, 371 1.59.2.2 skrll const npf_match_info_t *, int *); 372 1.5 rmind 373 1.4 rmind /* State handling. */ 374 1.55 rmind bool npf_state_init(npf_cache_t *, npf_state_t *); 375 1.55 rmind bool npf_state_inspect(npf_cache_t *, npf_state_t *, const bool); 376 1.4 rmind int npf_state_etime(const npf_state_t *, const int); 377 1.4 rmind void npf_state_destroy(npf_state_t *); 378 1.4 rmind 379 1.55 rmind bool npf_state_tcp(npf_cache_t *, npf_state_t *, int); 380 1.9 rmind int npf_state_tcp_timeout(const npf_state_t *); 381 1.9 rmind 382 1.1 rmind /* NAT. */ 383 1.1 rmind void npf_nat_sysinit(void); 384 1.1 rmind void npf_nat_sysfini(void); 385 1.59.2.2 skrll npf_natpolicy_t *npf_nat_newpolicy(npf_t *, prop_dictionary_t, npf_ruleset_t *); 386 1.57 rmind int npf_nat_policyexport(const npf_natpolicy_t *, prop_dictionary_t); 387 1.1 rmind void npf_nat_freepolicy(npf_natpolicy_t *); 388 1.56 rmind bool npf_nat_cmppolicy(npf_natpolicy_t *, npf_natpolicy_t *); 389 1.6 rmind bool npf_nat_sharepm(npf_natpolicy_t *, npf_natpolicy_t *); 390 1.56 rmind void npf_nat_setid(npf_natpolicy_t *, uint64_t); 391 1.56 rmind uint64_t npf_nat_getid(const npf_natpolicy_t *); 392 1.18 rmind void npf_nat_freealg(npf_natpolicy_t *, npf_alg_t *); 393 1.1 rmind 394 1.55 rmind int npf_do_nat(npf_cache_t *, npf_conn_t *, const int); 395 1.44 rmind void npf_nat_destroy(npf_nat_t *); 396 1.4 rmind void npf_nat_getorig(npf_nat_t *, npf_addr_t **, in_port_t *); 397 1.5 rmind void npf_nat_gettrans(npf_nat_t *, npf_addr_t **, in_port_t *); 398 1.1 rmind void npf_nat_setalg(npf_nat_t *, npf_alg_t *, uintptr_t); 399 1.1 rmind 400 1.56 rmind void npf_nat_export(prop_dictionary_t, npf_nat_t *); 401 1.59.2.2 skrll npf_nat_t * npf_nat_import(npf_t *, prop_dictionary_t, npf_ruleset_t *, 402 1.56 rmind npf_conn_t *); 403 1.5 rmind 404 1.1 rmind /* ALG interface. */ 405 1.59.2.2 skrll void npf_alg_init(npf_t *); 406 1.59.2.2 skrll void npf_alg_fini(npf_t *); 407 1.59.2.2 skrll npf_alg_t * npf_alg_register(npf_t *, const char *, const npfa_funcs_t *); 408 1.59.2.2 skrll int npf_alg_unregister(npf_t *, npf_alg_t *); 409 1.59.2.2 skrll npf_alg_t * npf_alg_construct(npf_t *, const char *); 410 1.55 rmind bool npf_alg_match(npf_cache_t *, npf_nat_t *, int); 411 1.55 rmind void npf_alg_exec(npf_cache_t *, npf_nat_t *, bool); 412 1.55 rmind npf_conn_t * npf_alg_conn(npf_cache_t *, int); 413 1.59.2.2 skrll prop_array_t npf_alg_export(npf_t *); 414 1.1 rmind 415 1.1 rmind /* Debugging routines. */ 416 1.54 rmind const char * npf_addr_dump(const npf_addr_t *, int); 417 1.17 rmind void npf_state_dump(const npf_state_t *); 418 1.17 rmind void npf_nat_dump(const npf_nat_t *); 419 1.59.2.2 skrll void npf_ruleset_dump(npf_t *, const char *); 420 1.22 rmind void npf_state_setsampler(void (*)(npf_state_t *, bool)); 421 1.1 rmind 422 1.59.2.2 skrll /* In-kernel routines. */ 423 1.59.2.2 skrll void npf_setkernctx(npf_t *); 424 1.59.2.2 skrll npf_t * npf_getkernctx(void); 425 1.59.2.2 skrll 426 1.59.2.2 skrll #ifdef __NetBSD__ 427 1.59.2.2 skrll #define pserialize_register(x) 428 1.59.2.2 skrll #define pserialize_checkpoint(x) 429 1.59.2.2 skrll #endif 430 1.59.2.2 skrll 431 1.7 rmind #endif /* _NPF_IMPL_H_ */ 432
Indexes created Fri Oct 03 02:09:57 GMT 2025