1 /*- 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. 4 * Copyright (c) 2010-2011 Juniper Networks, Inc. 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Robert N. M. Watson under 8 * contract to Juniper Networks, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 35 * $FreeBSD$ 36 */ 37 38 #ifndef _NETINET_IN_PCB_H_ 39 #define _NETINET_IN_PCB_H_ 40 41 #include <sys/queue.h> 42 #include <sys/_lock.h> 43 #include <sys/_mutex.h> 44 #include <sys/_rwlock.h> 45 46 #ifdef _KERNEL 47 #include <sys/rwlock.h> 48 #include <net/vnet.h> 49 #include <vm/uma.h> 50 #endif 51 52 #define in6pcb inpcb /* for KAME src sync over BSD*'s */ 53 #define in6p_sp inp_sp /* for KAME src sync over BSD*'s */ 54 struct inpcbpolicy; 55 56 /* 57 * struct inpcb is the common protocol control block structure used in most 58 * IP transport protocols. 59 * 60 * Pointers to local and foreign host table entries, local and foreign socket 61 * numbers, and pointers up (to a socket structure) and down (to a 62 * protocol-specific control block) are stored here. 63 */ 64 LIST_HEAD(inpcbhead, inpcb); 65 LIST_HEAD(inpcbporthead, inpcbport); 66 typedef u_quad_t inp_gen_t; 67 68 /* 69 * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet. 70 * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing 71 * the following structure. 72 */ 73 struct in_addr_4in6 { 74 u_int32_t ia46_pad32[3]; 75 struct in_addr ia46_addr4; 76 }; 77 78 /* 79 * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553. in_conninfo has 80 * some extra padding to accomplish this. 81 */ 82 struct in_endpoints { 83 u_int16_t ie_fport; /* foreign port */ 84 u_int16_t ie_lport; /* local port */ 85 /* protocol dependent part, local and foreign addr */ 86 union { 87 /* foreign host table entry */ 88 struct in_addr_4in6 ie46_foreign; 89 struct in6_addr ie6_foreign; 90 } ie_dependfaddr; 91 union { 92 /* local host table entry */ 93 struct in_addr_4in6 ie46_local; 94 struct in6_addr ie6_local; 95 } ie_dependladdr; 96 }; 97 #define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4 98 #define ie_laddr ie_dependladdr.ie46_local.ia46_addr4 99 #define ie6_faddr ie_dependfaddr.ie6_foreign 100 #define ie6_laddr ie_dependladdr.ie6_local 101 102 /* 103 * XXX The defines for inc_* are hacks and should be changed to direct 104 * references. 105 */ 106 struct in_conninfo { 107 u_int8_t inc_flags; 108 u_int8_t inc_len; 109 u_int16_t inc_fibnum; /* XXX was pad, 16 bits is plenty */ 110 /* protocol dependent part */ 111 struct in_endpoints inc_ie; 112 }; 113 114 /* 115 * Flags for inc_flags. 116 */ 117 #define INC_ISIPV6 0x01 118 119 #define inc_isipv6 inc_flags /* temp compatability */ 120 #define inc_fport inc_ie.ie_fport 121 #define inc_lport inc_ie.ie_lport 122 #define inc_faddr inc_ie.ie_faddr 123 #define inc_laddr inc_ie.ie_laddr 124 #define inc6_faddr inc_ie.ie6_faddr 125 #define inc6_laddr inc_ie.ie6_laddr 126 127 struct icmp6_filter; 128 129 /*- 130 * struct inpcb captures the network layer state for TCP, UDP, and raw IPv4 131 * and IPv6 sockets. In the case of TCP, further per-connection state is 132 * hung off of inp_ppcb most of the time. Almost all fields of struct inpcb 133 * are static after creation or protected by a per-inpcb rwlock, inp_lock. A 134 * few fields also require the global pcbinfo lock for the inpcb to be held, 135 * when modified, such as the global connection lists and hashes, as well as 136 * binding information (which affects which hash a connection is on). This 137 * model means that connections can be looked up without holding the 138 * per-connection lock, which is important for performance when attempting to 139 * find the connection for a packet given its IP and port tuple. Writing to 140 * these fields that write locks be held on both the inpcb and global locks. 141 * 142 * Key: 143 * (c) - Constant after initialization 144 * (i) - Protected by the inpcb lock 145 * (p) - Protected by the pcbinfo lock for the inpcb 146 * (s) - Protected by another subsystem's locks 147 * (x) - Undefined locking 148 * 149 * A few other notes: 150 * 151 * When a read lock is held, stability of the field is guaranteed; to write 152 * to a field, a write lock must generally be held. 153 * 154 * netinet/netinet6-layer code should not assume that the inp_socket pointer 155 * is safe to dereference without inp_lock being held, even for protocols 156 * other than TCP (where the inpcb persists during TIMEWAIT even after the 157 * socket has been freed), or there may be close(2)-related races. 158 * 159 * The inp_vflag field is overloaded, and would otherwise ideally be (c). 160 */ 161 struct inpcb { 162 LIST_ENTRY(inpcb) inp_hash; /* (i/p) hash list */ 163 LIST_ENTRY(inpcb) inp_list; /* (i/p) list for all PCBs for proto */ 164 void *inp_ppcb; /* (i) pointer to per-protocol pcb */ 165 struct inpcbinfo *inp_pcbinfo; /* (c) PCB list info */ 166 struct socket *inp_socket; /* (i) back pointer to socket */ 167 struct ucred *inp_cred; /* (c) cache of socket cred */ 168 u_int32_t inp_flow; /* (i) IPv6 flow information */ 169 int inp_flags; /* (i) generic IP/datagram flags */ 170 int inp_flags2; /* (i) generic IP/datagram flags #2*/ 171 u_char inp_vflag; /* (i) IP version flag (v4/v6) */ 172 u_char inp_ip_ttl; /* (i) time to live proto */ 173 u_char inp_ip_p; /* (c) protocol proto */ 174 u_char inp_ip_minttl; /* (i) minimum TTL or drop */ 175 uint32_t inp_flowid; /* (x) flow id / queue id */ 176 u_int inp_refcount; /* (i) refcount */ 177 void *inp_pspare[4]; /* (x) rtentry / general use */ 178 u_int inp_ispare[4]; /* general use */ 179 180 /* Local and foreign ports, local and foreign addr. */ 181 struct in_conninfo inp_inc; /* (i/p) list for PCB's local port */ 182 183 /* MAC and IPSEC policy information. */ 184 struct label *inp_label; /* (i) MAC label */ 185 struct inpcbpolicy *inp_sp; /* (s) for IPSEC */ 186 187 /* Protocol-dependent part; options. */ 188 struct { 189 u_char inp4_ip_tos; /* (i) type of service proto */ 190 struct mbuf *inp4_options; /* (i) IP options */ 191 struct ip_moptions *inp4_moptions; /* (i) IP mcast options */ 192 } inp_depend4; 193 struct { 194 /* (i) IP options */ 195 struct mbuf *inp6_options; 196 /* (i) IP6 options for outgoing packets */ 197 struct ip6_pktopts *inp6_outputopts; 198 /* (i) IP multicast options */ 199 struct ip6_moptions *inp6_moptions; 200 /* (i) ICMPv6 code type filter */ 201 struct icmp6_filter *inp6_icmp6filt; 202 /* (i) IPV6_CHECKSUM setsockopt */ 203 int inp6_cksum; 204 short inp6_hops; 205 } inp_depend6; 206 LIST_ENTRY(inpcb) inp_portlist; /* (i/p) */ 207 struct inpcbport *inp_phd; /* (i/p) head of this list */ 208 #define inp_zero_size offsetof(struct inpcb, inp_gencnt) 209 inp_gen_t inp_gencnt; /* (c) generation count */ 210 struct llentry *inp_lle; /* cached L2 information */ 211 struct rtentry *inp_rt; /* cached L3 information */ 212 struct rwlock inp_lock; 213 }; 214 #define inp_fport inp_inc.inc_fport 215 #define inp_lport inp_inc.inc_lport 216 #define inp_faddr inp_inc.inc_faddr 217 #define inp_laddr inp_inc.inc_laddr 218 #define inp_ip_tos inp_depend4.inp4_ip_tos 219 #define inp_options inp_depend4.inp4_options 220 #define inp_moptions inp_depend4.inp4_moptions 221 222 #define in6p_faddr inp_inc.inc6_faddr 223 #define in6p_laddr inp_inc.inc6_laddr 224 #define in6p_hops inp_depend6.inp6_hops /* default hop limit */ 225 #define in6p_flowinfo inp_flow 226 #define in6p_options inp_depend6.inp6_options 227 #define in6p_outputopts inp_depend6.inp6_outputopts 228 #define in6p_moptions inp_depend6.inp6_moptions 229 #define in6p_icmp6filt inp_depend6.inp6_icmp6filt 230 #define in6p_cksum inp_depend6.inp6_cksum 231 232 #define inp_vnet inp_pcbinfo->ipi_vnet 233 234 /* 235 * The range of the generation count, as used in this implementation, is 9e19. 236 * We would have to create 300 billion connections per second for this number 237 * to roll over in a year. This seems sufficiently unlikely that we simply 238 * don't concern ourselves with that possibility. 239 */ 240 241 /* 242 * Interface exported to userland by various protocols which use inpcbs. Hack 243 * alert -- only define if struct xsocket is in scope. 244 */ 245 #ifdef _SYS_SOCKETVAR_H_ 246 struct xinpcb { 247 size_t xi_len; /* length of this structure */ 248 struct inpcb xi_inp; 249 struct xsocket xi_socket; 250 u_quad_t xi_alignment_hack; 251 }; 252 253 struct xinpgen { 254 size_t xig_len; /* length of this structure */ 255 u_int xig_count; /* number of PCBs at this time */ 256 inp_gen_t xig_gen; /* generation count at this time */ 257 so_gen_t xig_sogen; /* socket generation count at this time */ 258 }; 259 #endif /* _SYS_SOCKETVAR_H_ */ 260 261 struct inpcbport { 262 LIST_ENTRY(inpcbport) phd_hash; 263 struct inpcbhead phd_pcblist; 264 u_short phd_port; 265 }; 266 267 /*- 268 * Global data structure for each high-level protocol (UDP, TCP, ...) in both 269 * IPv4 and IPv6. Holds inpcb lists and information for managing them. 270 * 271 * Each pcbinfo is protected by two locks: ipi_lock and ipi_hash_lock, 272 * the former covering mutable global fields (such as the global pcb list), 273 * and the latter covering the hashed lookup tables. The lock order is: 274 * 275 * ipi_lock (before) inpcb locks (before) ipi_hash_lock 276 * 277 * Locking key: 278 * 279 * (c) Constant or nearly constant after initialisation 280 * (g) Locked by ipi_lock 281 * (h) Read using either ipi_hash_lock or inpcb lock; write requires both. 282 * (x) Synchronisation properties poorly defined 283 */ 284 struct inpcbinfo { 285 /* 286 * Global lock protecting global inpcb list, inpcb count, etc. 287 */ 288 struct rwlock ipi_lock; 289 290 /* 291 * Global list of inpcbs on the protocol. 292 */ 293 struct inpcbhead *ipi_listhead; /* (g) */ 294 u_int ipi_count; /* (g) */ 295 296 /* 297 * Generation count -- incremented each time a connection is allocated 298 * or freed. 299 */ 300 u_quad_t ipi_gencnt; /* (g) */ 301 302 /* 303 * Fields associated with port lookup and allocation. 304 */ 305 u_short ipi_lastport; /* (x) */ 306 u_short ipi_lastlow; /* (x) */ 307 u_short ipi_lasthi; /* (x) */ 308 309 /* 310 * UMA zone from which inpcbs are allocated for this protocol. 311 */ 312 struct uma_zone *ipi_zone; /* (c) */ 313 314 /* 315 * Global lock protecting hash lookup tables. 316 */ 317 struct rwlock ipi_hash_lock; 318 319 /* 320 * Global hash of inpcbs, hashed by local and foreign addresses and 321 * port numbers. 322 */ 323 struct inpcbhead *ipi_hashbase; /* (h) */ 324 u_long ipi_hashmask; /* (h) */ 325 326 /* 327 * Global hash of inpcbs, hashed by only local port number. 328 */ 329 struct inpcbporthead *ipi_porthashbase; /* (h) */ 330 u_long ipi_porthashmask; /* (h) */ 331 332 /* 333 * Pointer to network stack instance 334 */ 335 struct vnet *ipi_vnet; /* (c) */ 336 337 /* 338 * general use 2 339 */ 340 void *ipi_pspare[2]; 341 }; 342 343 #define INP_LOCK_INIT(inp, d, t) \ 344 rw_init_flags(&(inp)->inp_lock, (t), RW_RECURSE | RW_DUPOK) 345 #define INP_LOCK_DESTROY(inp) rw_destroy(&(inp)->inp_lock) 346 #define INP_RLOCK(inp) rw_rlock(&(inp)->inp_lock) 347 #define INP_WLOCK(inp) rw_wlock(&(inp)->inp_lock) 348 #define INP_TRY_RLOCK(inp) rw_try_rlock(&(inp)->inp_lock) 349 #define INP_TRY_WLOCK(inp) rw_try_wlock(&(inp)->inp_lock) 350 #define INP_RUNLOCK(inp) rw_runlock(&(inp)->inp_lock) 351 #define INP_WUNLOCK(inp) rw_wunlock(&(inp)->inp_lock) 352 #define INP_TRY_UPGRADE(inp) rw_try_upgrade(&(inp)->inp_lock) 353 #define INP_DOWNGRADE(inp) rw_downgrade(&(inp)->inp_lock) 354 #define INP_WLOCKED(inp) rw_wowned(&(inp)->inp_lock) 355 #define INP_LOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_LOCKED) 356 #define INP_RLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_RLOCKED) 357 #define INP_WLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_WLOCKED) 358 #define INP_UNLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_UNLOCKED) 359 360 #ifdef _KERNEL 361 /* 362 * These locking functions are for inpcb consumers outside of sys/netinet, 363 * more specifically, they were added for the benefit of TOE drivers. The 364 * macros are reserved for use by the stack. 365 */ 366 void inp_wlock(struct inpcb *); 367 void inp_wunlock(struct inpcb *); 368 void inp_rlock(struct inpcb *); 369 void inp_runlock(struct inpcb *); 370 371 #ifdef INVARIANTS 372 void inp_lock_assert(struct inpcb *); 373 void inp_unlock_assert(struct inpcb *); 374 #else 375 static __inline void 376 inp_lock_assert(struct inpcb *inp __unused) 377 { 378 } 379 380 static __inline void 381 inp_unlock_assert(struct inpcb *inp __unused) 382 { 383 } 384 385 #endif 386 387 void inp_apply_all(void (*func)(struct inpcb *, void *), void *arg); 388 int inp_ip_tos_get(const struct inpcb *inp); 389 void inp_ip_tos_set(struct inpcb *inp, int val); 390 struct socket * 391 inp_inpcbtosocket(struct inpcb *inp); 392 struct tcpcb * 393 inp_inpcbtotcpcb(struct inpcb *inp); 394 void inp_4tuple_get(struct inpcb *inp, uint32_t *laddr, uint16_t *lp, 395 uint32_t *faddr, uint16_t *fp); 396 397 #endif /* _KERNEL */ 398 399 #define INP_INFO_LOCK_INIT(ipi, d) \ 400 rw_init_flags(&(ipi)->ipi_lock, (d), RW_RECURSE) 401 #define INP_INFO_LOCK_DESTROY(ipi) rw_destroy(&(ipi)->ipi_lock) 402 #define INP_INFO_RLOCK(ipi) rw_rlock(&(ipi)->ipi_lock) 403 #define INP_INFO_WLOCK(ipi) rw_wlock(&(ipi)->ipi_lock) 404 #define INP_INFO_TRY_RLOCK(ipi) rw_try_rlock(&(ipi)->ipi_lock) 405 #define INP_INFO_TRY_WLOCK(ipi) rw_try_wlock(&(ipi)->ipi_lock) 406 #define INP_INFO_TRY_UPGRADE(ipi) rw_try_upgrade(&(ipi)->ipi_lock) 407 #define INP_INFO_RUNLOCK(ipi) rw_runlock(&(ipi)->ipi_lock) 408 #define INP_INFO_WUNLOCK(ipi) rw_wunlock(&(ipi)->ipi_lock) 409 #define INP_INFO_LOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_LOCKED) 410 #define INP_INFO_RLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_RLOCKED) 411 #define INP_INFO_WLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_WLOCKED) 412 #define INP_INFO_UNLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_UNLOCKED) 413 414 #define INP_HASH_LOCK_INIT(ipi, d) \ 415 rw_init_flags(&(ipi)->ipi_hash_lock, (d), 0) 416 #define INP_HASH_LOCK_DESTROY(ipi) rw_destroy(&(ipi)->ipi_hash_lock) 417 #define INP_HASH_RLOCK(ipi) rw_rlock(&(ipi)->ipi_hash_lock) 418 #define INP_HASH_WLOCK(ipi) rw_wlock(&(ipi)->ipi_hash_lock) 419 #define INP_HASH_RUNLOCK(ipi) rw_runlock(&(ipi)->ipi_hash_lock) 420 #define INP_HASH_WUNLOCK(ipi) rw_wunlock(&(ipi)->ipi_hash_lock) 421 #define INP_HASH_LOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_hash_lock, \ 422 RA_LOCKED) 423 #define INP_HASH_WLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_hash_lock, \ 424 RA_WLOCKED) 425 426 #define INP_PCBHASH(faddr, lport, fport, mask) \ 427 (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask)) 428 #define INP_PCBPORTHASH(lport, mask) \ 429 (ntohs((lport)) & (mask)) 430 431 /* 432 * Flags for inp_vflags -- historically version flags only 433 */ 434 #define INP_IPV4 0x1 435 #define INP_IPV6 0x2 436 #define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */ 437 438 /* 439 * Flags for inp_flags. 440 */ 441 #define INP_RECVOPTS 0x00000001 /* receive incoming IP options */ 442 #define INP_RECVRETOPTS 0x00000002 /* receive IP options for reply */ 443 #define INP_RECVDSTADDR 0x00000004 /* receive IP dst address */ 444 #define INP_HDRINCL 0x00000008 /* user supplies entire IP header */ 445 #define INP_HIGHPORT 0x00000010 /* user wants "high" port binding */ 446 #define INP_LOWPORT 0x00000020 /* user wants "low" port binding */ 447 #define INP_ANONPORT 0x00000040 /* port chosen for user */ 448 #define INP_RECVIF 0x00000080 /* receive incoming interface */ 449 #define INP_MTUDISC 0x00000100 /* user can do MTU discovery */ 450 #define INP_FAITH 0x00000200 /* accept FAITH'ed connections */ 451 #define INP_RECVTTL 0x00000400 /* receive incoming IP TTL */ 452 #define INP_DONTFRAG 0x00000800 /* don't fragment packet */ 453 #define INP_BINDANY 0x00001000 /* allow bind to any address */ 454 #define INP_INHASHLIST 0x00002000 /* in_pcbinshash() has been called */ 455 #define IN6P_IPV6_V6ONLY 0x00008000 /* restrict AF_INET6 socket for v6 */ 456 #define IN6P_PKTINFO 0x00010000 /* receive IP6 dst and I/F */ 457 #define IN6P_HOPLIMIT 0x00020000 /* receive hoplimit */ 458 #define IN6P_HOPOPTS 0x00040000 /* receive hop-by-hop options */ 459 #define IN6P_DSTOPTS 0x00080000 /* receive dst options after rthdr */ 460 #define IN6P_RTHDR 0x00100000 /* receive routing header */ 461 #define IN6P_RTHDRDSTOPTS 0x00200000 /* receive dstoptions before rthdr */ 462 #define IN6P_TCLASS 0x00400000 /* receive traffic class value */ 463 #define IN6P_AUTOFLOWLABEL 0x00800000 /* attach flowlabel automatically */ 464 #define INP_TIMEWAIT 0x01000000 /* in TIMEWAIT, ppcb is tcptw */ 465 #define INP_ONESBCAST 0x02000000 /* send all-ones broadcast */ 466 #define INP_DROPPED 0x04000000 /* protocol drop flag */ 467 #define INP_SOCKREF 0x08000000 /* strong socket reference */ 468 #define INP_SW_FLOWID 0x10000000 /* software generated flow id */ 469 #define INP_HW_FLOWID 0x20000000 /* hardware generated flow id */ 470 #define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */ 471 #define IN6P_MTU 0x80000000 /* receive path MTU */ 472 473 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ 474 INP_RECVIF|INP_RECVTTL|\ 475 IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\ 476 IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\ 477 IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\ 478 IN6P_MTU) 479 480 /* 481 * Flags for inp_flags2. 482 */ 483 #define INP_LLE_VALID 0x00000001 /* cached lle is valid */ 484 #define INP_RT_VALID 0x00000002 /* cached rtentry is valid */ 485 486 /* 487 * Flags passed to in_pcblookup*() functions. 488 */ 489 #define INPLOOKUP_WILDCARD 0x00000001 /* Allow wildcard sockets. */ 490 #define INPLOOKUP_RLOCKPCB 0x00000002 /* Return inpcb read-locked. */ 491 #define INPLOOKUP_WLOCKPCB 0x00000004 /* Return inpcb write-locked. */ 492 493 #define INPLOOKUP_MASK (INPLOOKUP_WILDCARD | INPLOOKUP_RLOCKPCB | \ 494 INPLOOKUP_WLOCKPCB) 495 496 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 497 #define sotoin6pcb(so) sotoinpcb(so) /* for KAME src sync over BSD*'s */ 498 499 #define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family 500 501 #define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af) 502 503 #ifdef _KERNEL 504 VNET_DECLARE(int, ipport_reservedhigh); 505 VNET_DECLARE(int, ipport_reservedlow); 506 VNET_DECLARE(int, ipport_lowfirstauto); 507 VNET_DECLARE(int, ipport_lowlastauto); 508 VNET_DECLARE(int, ipport_firstauto); 509 VNET_DECLARE(int, ipport_lastauto); 510 VNET_DECLARE(int, ipport_hifirstauto); 511 VNET_DECLARE(int, ipport_hilastauto); 512 VNET_DECLARE(int, ipport_randomized); 513 VNET_DECLARE(int, ipport_randomcps); 514 VNET_DECLARE(int, ipport_randomtime); 515 VNET_DECLARE(int, ipport_stoprandom); 516 VNET_DECLARE(int, ipport_tcpallocs); 517 518 #define V_ipport_reservedhigh VNET(ipport_reservedhigh) 519 #define V_ipport_reservedlow VNET(ipport_reservedlow) 520 #define V_ipport_lowfirstauto VNET(ipport_lowfirstauto) 521 #define V_ipport_lowlastauto VNET(ipport_lowlastauto) 522 #define V_ipport_firstauto VNET(ipport_firstauto) 523 #define V_ipport_lastauto VNET(ipport_lastauto) 524 #define V_ipport_hifirstauto VNET(ipport_hifirstauto) 525 #define V_ipport_hilastauto VNET(ipport_hilastauto) 526 #define V_ipport_randomized VNET(ipport_randomized) 527 #define V_ipport_randomcps VNET(ipport_randomcps) 528 #define V_ipport_randomtime VNET(ipport_randomtime) 529 #define V_ipport_stoprandom VNET(ipport_stoprandom) 530 #define V_ipport_tcpallocs VNET(ipport_tcpallocs) 531 532 void in_pcbinfo_destroy(struct inpcbinfo *); 533 void in_pcbinfo_init(struct inpcbinfo *, const char *, struct inpcbhead *, 534 int, int, char *, uma_init, uma_fini, uint32_t); 535 536 void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *); 537 int in_pcballoc(struct socket *, struct inpcbinfo *); 538 int in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *); 539 int in_pcb_lport(struct inpcb *, struct in_addr *, u_short *, 540 struct ucred *, int); 541 int in_pcbbind_setup(struct inpcb *, struct sockaddr *, in_addr_t *, 542 u_short *, struct ucred *); 543 int in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *); 544 int in_pcbconnect_mbuf(struct inpcb *, struct sockaddr *, struct ucred *, 545 struct mbuf *); 546 int in_pcbconnect_setup(struct inpcb *, struct sockaddr *, in_addr_t *, 547 u_short *, in_addr_t *, u_short *, struct inpcb **, 548 struct ucred *); 549 void in_pcbdetach(struct inpcb *); 550 void in_pcbdisconnect(struct inpcb *); 551 void in_pcbdrop(struct inpcb *); 552 void in_pcbfree(struct inpcb *); 553 int in_pcbinshash(struct inpcb *); 554 struct inpcb * 555 in_pcblookup_local(struct inpcbinfo *, 556 struct in_addr, u_short, int, struct ucred *); 557 struct inpcb * 558 in_pcblookup(struct inpcbinfo *, struct in_addr, u_int, 559 struct in_addr, u_int, int, struct ifnet *); 560 struct inpcb * 561 in_pcblookup_mbuf(struct inpcbinfo *, struct in_addr, u_int, 562 struct in_addr, u_int, int, struct ifnet *, struct mbuf *); 563 void in_pcbnotifyall(struct inpcbinfo *pcbinfo, struct in_addr, 564 int, struct inpcb *(*)(struct inpcb *, int)); 565 void in_pcbref(struct inpcb *); 566 void in_pcbrehash(struct inpcb *); 567 void in_pcbrehash_mbuf(struct inpcb *, struct mbuf *); 568 int in_pcbrele(struct inpcb *); 569 int in_pcbrele_rlocked(struct inpcb *); 570 int in_pcbrele_wlocked(struct inpcb *); 571 void in_pcbsetsolabel(struct socket *so); 572 int in_getpeeraddr(struct socket *so, struct sockaddr **nam); 573 int in_getsockaddr(struct socket *so, struct sockaddr **nam); 574 struct sockaddr * 575 in_sockaddr(in_port_t port, struct in_addr *addr); 576 void in_pcbsosetlabel(struct socket *so); 577 #endif /* _KERNEL */ 578 579 #endif /* !_NETINET_IN_PCB_H_ */ 580