in_pcb.h revision 195699
1139823Simp/*- 21541Srgrimes * Copyright (c) 1982, 1986, 1990, 1993 3185791Srwatson * The Regents of the University of California. 4185791Srwatson * All rights reserved. 51541Srgrimes * 61541Srgrimes * Redistribution and use in source and binary forms, with or without 71541Srgrimes * modification, are permitted provided that the following conditions 81541Srgrimes * are met: 91541Srgrimes * 1. Redistributions of source code must retain the above copyright 101541Srgrimes * notice, this list of conditions and the following disclaimer. 111541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 121541Srgrimes * notice, this list of conditions and the following disclaimer in the 131541Srgrimes * documentation and/or other materials provided with the distribution. 141541Srgrimes * 4. Neither the name of the University nor the names of its contributors 151541Srgrimes * may be used to endorse or promote products derived from this software 161541Srgrimes * without specific prior written permission. 171541Srgrimes * 181541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 191541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 201541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 211541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 221541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 231541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 241541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 251541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 261541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 271541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 281541Srgrimes * SUCH DAMAGE. 291541Srgrimes * 301541Srgrimes * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 3150477Speter * $FreeBSD: head/sys/netinet/in_pcb.h 195699 2009-07-14 22:48:30Z rwatson $ 321541Srgrimes */ 331541Srgrimes 342169Spaul#ifndef _NETINET_IN_PCB_H_ 352169Spaul#define _NETINET_IN_PCB_H_ 362169Spaul 3712644Sbde#include <sys/queue.h> 38102981Sbde#include <sys/_lock.h> 39102981Sbde#include <sys/_mutex.h> 40178285Srwatson#include <sys/_rwlock.h> 4112644Sbde 42178285Srwatson#ifdef _KERNEL 43178285Srwatson#include <sys/rwlock.h> 44195699Srwatson#include <net/vnet.h> 45178285Srwatson#endif 46178285Srwatson 4753541Sshin#define in6pcb inpcb /* for KAME src sync over BSD*'s */ 4853541Sshin#define in6p_sp inp_sp /* for KAME src sync over BSD*'s */ 49105199Ssamstruct inpcbpolicy; 5053541Sshin 511541Srgrimes/* 52183460Srwatson * struct inpcb is the common protocol control block structure used in most 53183460Srwatson * IP transport protocols. 54169154Srwatson * 55169154Srwatson * Pointers to local and foreign host table entries, local and foreign socket 56169154Srwatson * numbers, and pointers up (to a socket structure) and down (to a 57169154Srwatson * protocol-specific control block) are stored here. 581541Srgrimes */ 5960938SjakeLIST_HEAD(inpcbhead, inpcb); 6060938SjakeLIST_HEAD(inpcbporthead, inpcbport); 6136079Swollmantypedef u_quad_t inp_gen_t; 627684Sdg 6334881Swollman/* 6453541Sshin * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet. 65169154Srwatson * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing 66169154Srwatson * the following structure. 6753541Sshin */ 6853541Sshinstruct in_addr_4in6 { 6953541Sshin u_int32_t ia46_pad32[3]; 7053541Sshin struct in_addr ia46_addr4; 7153541Sshin}; 7253541Sshin 7353541Sshin/* 74169154Srwatson * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553. in_conninfo has 75169154Srwatson * some extra padding to accomplish this. 7686764Sjlemon */ 7786764Sjlemonstruct in_endpoints { 7886764Sjlemon u_int16_t ie_fport; /* foreign port */ 7986764Sjlemon u_int16_t ie_lport; /* local port */ 8086764Sjlemon /* protocol dependent part, local and foreign addr */ 8186764Sjlemon union { 8286764Sjlemon /* foreign host table entry */ 8386764Sjlemon struct in_addr_4in6 ie46_foreign; 8486764Sjlemon struct in6_addr ie6_foreign; 8586764Sjlemon } ie_dependfaddr; 8686764Sjlemon union { 8786764Sjlemon /* local host table entry */ 8886764Sjlemon struct in_addr_4in6 ie46_local; 8986764Sjlemon struct in6_addr ie6_local; 9086764Sjlemon } ie_dependladdr; 91185791Srwatson}; 9286764Sjlemon#define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4 9386764Sjlemon#define ie_laddr ie_dependladdr.ie46_local.ia46_addr4 9486764Sjlemon#define ie6_faddr ie_dependfaddr.ie6_foreign 9586764Sjlemon#define ie6_laddr ie_dependladdr.ie6_local 9686764Sjlemon 9786764Sjlemon/* 98169154Srwatson * XXX The defines for inc_* are hacks and should be changed to direct 99169154Srwatson * references. 10086764Sjlemon */ 10186764Sjlemonstruct in_conninfo { 10286764Sjlemon u_int8_t inc_flags; 10386764Sjlemon u_int8_t inc_len; 104178888Sjulian u_int16_t inc_fibnum; /* XXX was pad, 16 bits is plenty */ 105122922Sandre /* protocol dependent part */ 10686764Sjlemon struct in_endpoints inc_ie; 10786764Sjlemon}; 108186222Sbz 109186222Sbz/* 110186222Sbz * Flags for inc_flags. 111186222Sbz */ 112186222Sbz#define INC_ISIPV6 0x01 113186222Sbz 11486764Sjlemon#define inc_isipv6 inc_flags /* temp compatability */ 11586764Sjlemon#define inc_fport inc_ie.ie_fport 11686764Sjlemon#define inc_lport inc_ie.ie_lport 11786764Sjlemon#define inc_faddr inc_ie.ie_faddr 11886764Sjlemon#define inc_laddr inc_ie.ie_laddr 11986764Sjlemon#define inc6_faddr inc_ie.ie6_faddr 12086764Sjlemon#define inc6_laddr inc_ie.ie6_laddr 12186764Sjlemon 12253541Sshinstruct icmp6_filter; 12353541Sshin 124180368Srwatson/*- 125180368Srwatson * struct inpcb captures the network layer state for TCP, UDP, and raw IPv4 126180368Srwatson * and IPv6 sockets. In the case of TCP, further per-connection state is 127180368Srwatson * hung off of inp_ppcb most of the time. Almost all fields of struct inpcb 128180368Srwatson * are static after creation or protected by a per-inpcb rwlock, inp_lock. A 129180368Srwatson * few fields also require the global pcbinfo lock for the inpcb to be held, 130180368Srwatson * when modified, such as the global connection lists and hashes, as well as 131180368Srwatson * binding information (which affects which hash a connection is on). This 132180368Srwatson * model means that connections can be looked up without holding the 133180368Srwatson * per-connection lock, which is important for performance when attempting to 134180368Srwatson * find the connection for a packet given its IP and port tuple. Writing to 135180368Srwatson * these fields that write locks be held on both the inpcb and global locks. 136180368Srwatson * 137180368Srwatson * Key: 138180368Srwatson * (c) - Constant after initialization 139180368Srwatson * (i) - Protected by the inpcb lock 140180368Srwatson * (p) - Protected by the pcbinfo lock for the inpcb 141180368Srwatson * (s) - Protected by another subsystem's locks 142180368Srwatson * (x) - Undefined locking 143180368Srwatson * 144180368Srwatson * A few other notes: 145180368Srwatson * 146180368Srwatson * When a read lock is held, stability of the field is guaranteed; to write 147180368Srwatson * to a field, a write lock must generally be held. 148180368Srwatson * 149180368Srwatson * netinet/netinet6-layer code should not assume that the inp_socket pointer 150180368Srwatson * is safe to dereference without inp_lock being held, even for protocols 151180368Srwatson * other than TCP (where the inpcb persists during TIMEWAIT even after the 152180368Srwatson * socket has been freed), or there may be close(2)-related races. 153180368Srwatson * 154180368Srwatson * The inp_vflag field is overloaded, and would otherwise ideally be (c). 155180368Srwatson */ 1561541Srgrimesstruct inpcb { 157180368Srwatson LIST_ENTRY(inpcb) inp_hash; /* (i/p) hash list */ 158180368Srwatson LIST_ENTRY(inpcb) inp_list; /* (i/p) list for all PCBs for proto */ 159180368Srwatson void *inp_ppcb; /* (i) pointer to per-protocol pcb */ 160180368Srwatson struct inpcbinfo *inp_pcbinfo; /* (c) PCB list info */ 161185791Srwatson struct socket *inp_socket; /* (i) back pointer to socket */ 162183606Sbz struct ucred *inp_cred; /* (c) cache of socket cred */ 163185791Srwatson u_int32_t inp_flow; /* (i) IPv6 flow information */ 164180368Srwatson int inp_flags; /* (i) generic IP/datagram flags */ 165191126Skmacy int inp_flags2; /* (i) generic IP/datagram flags #2*/ 166180368Srwatson u_char inp_vflag; /* (i) IP version flag (v4/v6) */ 167180368Srwatson u_char inp_ip_ttl; /* (i) time to live proto */ 168180368Srwatson u_char inp_ip_p; /* (c) protocol proto */ 169180368Srwatson u_char inp_ip_minttl; /* (i) minimum TTL or drop */ 170190880Skmacy uint32_t inp_flowid; /* (x) flow id / queue id */ 171185773Srwatson u_int inp_refcount; /* (i) refcount */ 172191160Skmacy void *inp_pspare[2]; /* (x) rtentry / general use */ 17353541Sshin 174174388Skmacy /* Local and foreign ports, local and foreign addr. */ 175185791Srwatson struct in_conninfo inp_inc; /* (i/p) list for PCB's local port */ 176174388Skmacy 177185791Srwatson /* MAC and IPSEC policy information. */ 178180368Srwatson struct label *inp_label; /* (i) MAC label */ 179180368Srwatson struct inpcbpolicy *inp_sp; /* (s) for IPSEC */ 180174388Skmacy 181169154Srwatson /* Protocol-dependent part; options. */ 18253541Sshin struct { 183180368Srwatson u_char inp4_ip_tos; /* (i) type of service proto */ 184180368Srwatson struct mbuf *inp4_options; /* (i) IP options */ 185185791Srwatson struct ip_moptions *inp4_moptions; /* (i) IP mcast options */ 18653541Sshin } inp_depend4; 18753541Sshin struct { 188180368Srwatson /* (i) IP options */ 18953541Sshin struct mbuf *inp6_options; 190180368Srwatson /* (i) IP6 options for outgoing packets */ 19153541Sshin struct ip6_pktopts *inp6_outputopts; 192180368Srwatson /* (i) IP multicast options */ 19353541Sshin struct ip6_moptions *inp6_moptions; 194180368Srwatson /* (i) ICMPv6 code type filter */ 19553541Sshin struct icmp6_filter *inp6_icmp6filt; 196180368Srwatson /* (i) IPV6_CHECKSUM setsockopt */ 19753541Sshin int inp6_cksum; 19853541Sshin short inp6_hops; 19953541Sshin } inp_depend6; 200180368Srwatson LIST_ENTRY(inpcb) inp_portlist; /* (i/p) */ 201180368Srwatson struct inpcbport *inp_phd; /* (i/p) head of this list */ 202160491Sups#define inp_zero_size offsetof(struct inpcb, inp_gencnt) 203185791Srwatson inp_gen_t inp_gencnt; /* (c) generation count */ 204191158Skmacy struct llentry *inp_lle; /* cached L2 information */ 205191158Skmacy struct rtentry *inp_rt; /* cached L3 information */ 206178285Srwatson struct rwlock inp_lock; 207185791Srwatson}; 208185791Srwatson#define inp_fport inp_inc.inc_fport 209185791Srwatson#define inp_lport inp_inc.inc_lport 210185791Srwatson#define inp_faddr inp_inc.inc_faddr 211185791Srwatson#define inp_laddr inp_inc.inc_laddr 212185791Srwatson#define inp_ip_tos inp_depend4.inp4_ip_tos 213185791Srwatson#define inp_options inp_depend4.inp4_options 214185791Srwatson#define inp_moptions inp_depend4.inp4_moptions 21598102Shsu 21686764Sjlemon#define in6p_faddr inp_inc.inc6_faddr 21786764Sjlemon#define in6p_laddr inp_inc.inc6_laddr 21853541Sshin#define in6p_hops inp_depend6.inp6_hops /* default hop limit */ 21953541Sshin#define in6p_flowinfo inp_flow 22053541Sshin#define in6p_options inp_depend6.inp6_options 22153541Sshin#define in6p_outputopts inp_depend6.inp6_outputopts 22253541Sshin#define in6p_moptions inp_depend6.inp6_moptions 22353541Sshin#define in6p_icmp6filt inp_depend6.inp6_icmp6filt 22453541Sshin#define in6p_cksum inp_depend6.inp6_cksum 225185791Srwatson 226191688Szec#define inp_vnet inp_pcbinfo->ipi_vnet 227191688Szec 22834881Swollman/* 229169154Srwatson * The range of the generation count, as used in this implementation, is 9e19. 230169154Srwatson * We would have to create 300 billion connections per second for this number 231169154Srwatson * to roll over in a year. This seems sufficiently unlikely that we simply 232169154Srwatson * don't concern ourselves with that possibility. 23334881Swollman */ 2341541Srgrimes 23536079Swollman/* 236169154Srwatson * Interface exported to userland by various protocols which use inpcbs. Hack 237169154Srwatson * alert -- only define if struct xsocket is in scope. 23836079Swollman */ 23936079Swollman#ifdef _SYS_SOCKETVAR_H_ 24036079Swollmanstruct xinpcb { 24136079Swollman size_t xi_len; /* length of this structure */ 24236079Swollman struct inpcb xi_inp; 24336079Swollman struct xsocket xi_socket; 24436079Swollman u_quad_t xi_alignment_hack; 24536079Swollman}; 24636079Swollman 24736079Swollmanstruct xinpgen { 24836079Swollman size_t xig_len; /* length of this structure */ 24936079Swollman u_int xig_count; /* number of PCBs at this time */ 25036079Swollman inp_gen_t xig_gen; /* generation count at this time */ 25136079Swollman so_gen_t xig_sogen; /* socket generation count at this time */ 25236079Swollman}; 25336079Swollman#endif /* _SYS_SOCKETVAR_H_ */ 25436079Swollman 25532821Sdgstruct inpcbport { 25660938Sjake LIST_ENTRY(inpcbport) phd_hash; 25732821Sdg struct inpcbhead phd_pcblist; 25832821Sdg u_short phd_port; 25932821Sdg}; 26032821Sdg 261169154Srwatson/* 262169154Srwatson * Global data structure for each high-level protocol (UDP, TCP, ...) in both 263169154Srwatson * IPv4 and IPv6. Holds inpcb lists and information for managing them. 264169154Srwatson */ 265169154Srwatsonstruct inpcbinfo { 266169154Srwatson /* 267169154Srwatson * Global list of inpcbs on the protocol. 268169154Srwatson */ 269169154Srwatson struct inpcbhead *ipi_listhead; 270169154Srwatson u_int ipi_count; 271169154Srwatson 272169154Srwatson /* 273169154Srwatson * Global hash of inpcbs, hashed by local and foreign addresses and 274169154Srwatson * port numbers. 275169154Srwatson */ 276169154Srwatson struct inpcbhead *ipi_hashbase; 277169154Srwatson u_long ipi_hashmask; 278169154Srwatson 279169154Srwatson /* 280169154Srwatson * Global hash of inpcbs, hashed by only local port number. 281169154Srwatson */ 282169154Srwatson struct inpcbporthead *ipi_porthashbase; 283169154Srwatson u_long ipi_porthashmask; 284169154Srwatson 285169154Srwatson /* 286169154Srwatson * Fields associated with port lookup and allocation. 287169154Srwatson */ 288169154Srwatson u_short ipi_lastport; 289169154Srwatson u_short ipi_lastlow; 290169154Srwatson u_short ipi_lasthi; 291169154Srwatson 292169154Srwatson /* 293169154Srwatson * UMA zone from which inpcbs are allocated for this protocol. 294169154Srwatson */ 295169154Srwatson struct uma_zone *ipi_zone; 296169154Srwatson 297169154Srwatson /* 298169154Srwatson * Generation count--incremented each time a connection is allocated 299169154Srwatson * or freed. 300169154Srwatson */ 301169154Srwatson u_quad_t ipi_gencnt; 302178285Srwatson struct rwlock ipi_lock; 303174388Skmacy 304174388Skmacy /* 305191688Szec * Pointer to network stack instance 306174388Skmacy */ 307191688Szec struct vnet *ipi_vnet; 308191688Szec 309191688Szec /* 310191688Szec * general use 2 311191688Szec */ 312181365Srwatson void *ipi_pspare[2]; 3137684Sdg}; 3147684Sdg 315122991Ssam#define INP_LOCK_INIT(inp, d, t) \ 316178285Srwatson rw_init_flags(&(inp)->inp_lock, (t), RW_RECURSE | RW_DUPOK) 317178285Srwatson#define INP_LOCK_DESTROY(inp) rw_destroy(&(inp)->inp_lock) 318178285Srwatson#define INP_RLOCK(inp) rw_rlock(&(inp)->inp_lock) 319178285Srwatson#define INP_WLOCK(inp) rw_wlock(&(inp)->inp_lock) 320180536Srwatson#define INP_TRY_RLOCK(inp) rw_try_rlock(&(inp)->inp_lock) 321180536Srwatson#define INP_TRY_WLOCK(inp) rw_try_wlock(&(inp)->inp_lock) 322178285Srwatson#define INP_RUNLOCK(inp) rw_runlock(&(inp)->inp_lock) 323178285Srwatson#define INP_WUNLOCK(inp) rw_wunlock(&(inp)->inp_lock) 324191125Skmacy#define INP_TRY_UPGRADE(inp) rw_try_upgrade(&(inp)->inp_lock) 325191125Skmacy#define INP_DOWNGRADE(inp) rw_downgrade(&(inp)->inp_lock) 326191125Skmacy#define INP_WLOCKED(inp) rw_wowned(&(inp)->inp_lock) 327191125Skmacy#define INP_LOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_LOCKED) 328178285Srwatson#define INP_RLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_RLOCKED) 329178285Srwatson#define INP_WLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_WLOCKED) 330178285Srwatson#define INP_UNLOCK_ASSERT(inp) rw_assert(&(inp)->inp_lock, RA_UNLOCKED) 33198102Shsu 332177575Skmacy#ifdef _KERNEL 333177530Skmacy/* 334181365Srwatson * These locking functions are for inpcb consumers outside of sys/netinet, 335177530Skmacy * more specifically, they were added for the benefit of TOE drivers. The 336177530Skmacy * macros are reserved for use by the stack. 337177530Skmacy */ 338177530Skmacyvoid inp_wlock(struct inpcb *); 339177530Skmacyvoid inp_wunlock(struct inpcb *); 340177530Skmacyvoid inp_rlock(struct inpcb *); 341177530Skmacyvoid inp_runlock(struct inpcb *); 342177530Skmacy 343177530Skmacy#ifdef INVARIANTS 344177575Skmacyvoid inp_lock_assert(struct inpcb *); 345177575Skmacyvoid inp_unlock_assert(struct inpcb *); 346177530Skmacy#else 347177530Skmacystatic __inline void 348177575Skmacyinp_lock_assert(struct inpcb *inp __unused) 349177530Skmacy{ 350177530Skmacy} 351177530Skmacy 352177530Skmacystatic __inline void 353177575Skmacyinp_unlock_assert(struct inpcb *inp __unused) 354177530Skmacy{ 355177530Skmacy} 356177575Skmacy 357177530Skmacy#endif 358180640Skmacy 359180678Skmacyvoid inp_apply_all(void (*func)(struct inpcb *, void *), void *arg); 360180678Skmacyint inp_ip_tos_get(const struct inpcb *inp); 361180678Skmacyvoid inp_ip_tos_set(struct inpcb *inp, int val); 362180678Skmacystruct socket * 363180678Skmacy inp_inpcbtosocket(struct inpcb *inp); 364180678Skmacystruct tcpcb * 365180678Skmacy inp_inpcbtotcpcb(struct inpcb *inp); 366181365Srwatsonvoid inp_4tuple_get(struct inpcb *inp, uint32_t *laddr, uint16_t *lp, 367180678Skmacy uint32_t *faddr, uint16_t *fp); 368180640Skmacy 369177575Skmacy#endif /* _KERNEL */ 370177530Skmacy 37198102Shsu#define INP_INFO_LOCK_INIT(ipi, d) \ 372178285Srwatson rw_init_flags(&(ipi)->ipi_lock, (d), RW_RECURSE) 373178285Srwatson#define INP_INFO_LOCK_DESTROY(ipi) rw_destroy(&(ipi)->ipi_lock) 374178285Srwatson#define INP_INFO_RLOCK(ipi) rw_rlock(&(ipi)->ipi_lock) 375178285Srwatson#define INP_INFO_WLOCK(ipi) rw_wlock(&(ipi)->ipi_lock) 376180536Srwatson#define INP_INFO_TRY_RLOCK(ipi) rw_try_rlock(&(ipi)->ipi_lock) 377180536Srwatson#define INP_INFO_TRY_WLOCK(ipi) rw_try_wlock(&(ipi)->ipi_lock) 378178285Srwatson#define INP_INFO_RUNLOCK(ipi) rw_runlock(&(ipi)->ipi_lock) 379178285Srwatson#define INP_INFO_WUNLOCK(ipi) rw_wunlock(&(ipi)->ipi_lock) 380178285Srwatson#define INP_INFO_LOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_LOCKED) 381178285Srwatson#define INP_INFO_RLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_RLOCKED) 382178285Srwatson#define INP_INFO_WLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_WLOCKED) 383178285Srwatson#define INP_INFO_UNLOCK_ASSERT(ipi) rw_assert(&(ipi)->ipi_lock, RA_UNLOCKED) 38498102Shsu 38523324Sdg#define INP_PCBHASH(faddr, lport, fport, mask) \ 38632821Sdg (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask)) 38732821Sdg#define INP_PCBPORTHASH(lport, mask) \ 38832821Sdg (ntohs((lport)) & (mask)) 38923324Sdg 390185791Srwatson/* 391191126Skmacy * Flags for inp_vflags -- historically version flags only 392185791Srwatson */ 393185791Srwatson#define INP_IPV4 0x1 394185791Srwatson#define INP_IPV6 0x2 395185791Srwatson#define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */ 396185791Srwatson 397185791Srwatson/* 398191126Skmacy * Flags for inp_flags. 399185791Srwatson */ 400189848Srwatson#define INP_RECVOPTS 0x00000001 /* receive incoming IP options */ 401189848Srwatson#define INP_RECVRETOPTS 0x00000002 /* receive IP options for reply */ 402189848Srwatson#define INP_RECVDSTADDR 0x00000004 /* receive IP dst address */ 403189848Srwatson#define INP_HDRINCL 0x00000008 /* user supplies entire IP header */ 404189848Srwatson#define INP_HIGHPORT 0x00000010 /* user wants "high" port binding */ 405189848Srwatson#define INP_LOWPORT 0x00000020 /* user wants "low" port binding */ 406189848Srwatson#define INP_ANONPORT 0x00000040 /* port chosen for user */ 407189848Srwatson#define INP_RECVIF 0x00000080 /* receive incoming interface */ 408189848Srwatson#define INP_MTUDISC 0x00000100 /* user can do MTU discovery */ 409189848Srwatson#define INP_FAITH 0x00000200 /* accept FAITH'ed connections */ 410189848Srwatson#define INP_RECVTTL 0x00000400 /* receive incoming IP TTL */ 411189848Srwatson#define INP_DONTFRAG 0x00000800 /* don't fragment packet */ 412193217Spjd#define INP_BINDANY 0x00001000 /* allow bind to any address */ 413189848Srwatson#define INP_INHASHLIST 0x00002000 /* in_pcbinshash() has been called */ 414189848Srwatson#define IN6P_IPV6_V6ONLY 0x00008000 /* restrict AF_INET6 socket for v6 */ 415189848Srwatson#define IN6P_PKTINFO 0x00010000 /* receive IP6 dst and I/F */ 416189848Srwatson#define IN6P_HOPLIMIT 0x00020000 /* receive hoplimit */ 417189848Srwatson#define IN6P_HOPOPTS 0x00040000 /* receive hop-by-hop options */ 418189848Srwatson#define IN6P_DSTOPTS 0x00080000 /* receive dst options after rthdr */ 419189848Srwatson#define IN6P_RTHDR 0x00100000 /* receive routing header */ 420189848Srwatson#define IN6P_RTHDRDSTOPTS 0x00200000 /* receive dstoptions before rthdr */ 421189848Srwatson#define IN6P_TCLASS 0x00400000 /* receive traffic class value */ 422189848Srwatson#define IN6P_AUTOFLOWLABEL 0x00800000 /* attach flowlabel automatically */ 423189848Srwatson#define INP_TIMEWAIT 0x01000000 /* in TIMEWAIT, ppcb is tcptw */ 424189848Srwatson#define INP_ONESBCAST 0x02000000 /* send all-ones broadcast */ 425189848Srwatson#define INP_DROPPED 0x04000000 /* protocol drop flag */ 426189848Srwatson#define INP_SOCKREF 0x08000000 /* strong socket reference */ 427190880Skmacy#define INP_SW_FLOWID 0x10000000 /* software generated flow id */ 428190880Skmacy#define INP_HW_FLOWID 0x20000000 /* hardware generated flow id */ 429121477Sume#define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */ 430121477Sume#define IN6P_MTU 0x80000000 /* receive path MTU */ 43178064Sume 43219622Sfenner#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ 433114258Smdodd INP_RECVIF|INP_RECVTTL|\ 43478064Sume IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\ 43578064Sume IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\ 436121472Sume IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\ 437121472Sume IN6P_MTU) 4381541Srgrimes 439191126Skmacy/* 440191126Skmacy * Flags for inp_flags2. 441191126Skmacy */ 442191129Skmacy#define INP_LLE_VALID 0x00000001 /* cached lle is valid */ 443191129Skmacy#define INP_RT_VALID 0x00000002 /* cached rtentry is valid */ 444191126Skmacy 4451541Srgrimes#define INPLOOKUP_WILDCARD 1 4461541Srgrimes#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 44753541Sshin#define sotoin6pcb(so) sotoinpcb(so) /* for KAME src sync over BSD*'s */ 4481541Srgrimes 44953541Sshin#define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family 45053541Sshin 451133874Srwatson#define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af) 45253541Sshin 45355205Speter#ifdef _KERNEL 454195699SrwatsonVNET_DECLARE(int, ipport_reservedhigh); 455195699SrwatsonVNET_DECLARE(int, ipport_reservedlow); 456195699SrwatsonVNET_DECLARE(int, ipport_lowfirstauto); 457195699SrwatsonVNET_DECLARE(int, ipport_lowlastauto); 458195699SrwatsonVNET_DECLARE(int, ipport_firstauto); 459195699SrwatsonVNET_DECLARE(int, ipport_lastauto); 460195699SrwatsonVNET_DECLARE(int, ipport_hifirstauto); 461195699SrwatsonVNET_DECLARE(int, ipport_hilastauto); 462195699SrwatsonVNET_DECLARE(int, ipport_randomized); 463195699SrwatsonVNET_DECLARE(int, ipport_randomcps); 464195699SrwatsonVNET_DECLARE(int, ipport_randomtime); 465195699SrwatsonVNET_DECLARE(int, ipport_stoprandom); 466195699SrwatsonVNET_DECLARE(int, ipport_tcpallocs); 467195699Srwatson 468195699Srwatson#define V_ipport_reservedhigh VNET_GET(ipport_reservedhigh) 469195699Srwatson#define V_ipport_reservedlow VNET_GET(ipport_reservedlow) 470195699Srwatson#define V_ipport_lowfirstauto VNET_GET(ipport_lowfirstauto) 471195699Srwatson#define V_ipport_lowlastauto VNET_GET(ipport_lowlastauto) 472195699Srwatson#define V_ipport_firstauto VNET_GET(ipport_firstauto) 473195699Srwatson#define V_ipport_lastauto VNET_GET(ipport_lastauto) 474195699Srwatson#define V_ipport_hifirstauto VNET_GET(ipport_hifirstauto) 475195699Srwatson#define V_ipport_hilastauto VNET_GET(ipport_hilastauto) 476195699Srwatson#define V_ipport_randomized VNET_GET(ipport_randomized) 477195699Srwatson#define V_ipport_randomcps VNET_GET(ipport_randomcps) 478195699Srwatson#define V_ipport_randomtime VNET_GET(ipport_randomtime) 479195699Srwatson#define V_ipport_stoprandom VNET_GET(ipport_stoprandom) 480195699Srwatson#define V_ipport_tcpallocs VNET_GET(ipport_tcpallocs) 481195699Srwatson 482139558Ssilbyextern struct callout ipport_tick_callout; 48353541Sshin 48498102Shsuvoid in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *); 485160491Supsint in_pcballoc(struct socket *, struct inpcbinfo *); 486127505Spjdint in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *); 487105565Siedowseint in_pcbbind_setup(struct inpcb *, struct sockaddr *, in_addr_t *, 488127505Spjd u_short *, struct ucred *); 489127505Spjdint in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *); 490105629Siedowseint in_pcbconnect_setup(struct inpcb *, struct sockaddr *, in_addr_t *, 491105629Siedowse u_short *, in_addr_t *, u_short *, struct inpcb **, 492127505Spjd struct ucred *); 49392723Salfredvoid in_pcbdetach(struct inpcb *); 49492723Salfredvoid in_pcbdisconnect(struct inpcb *); 495158009Srwatsonvoid in_pcbdrop(struct inpcb *); 496157373Srwatsonvoid in_pcbfree(struct inpcb *); 49792723Salfredint in_pcbinshash(struct inpcb *); 4981541Srgrimesstruct inpcb * 49992723Salfred in_pcblookup_local(struct inpcbinfo *, 500180427Sbz struct in_addr, u_short, int, struct ucred *); 5017684Sdgstruct inpcb * 50293085Sbde in_pcblookup_hash(struct inpcbinfo *, struct in_addr, u_int, 50393085Sbde struct in_addr, u_int, int, struct ifnet *); 50498102Shsuvoid in_pcbnotifyall(struct inpcbinfo *pcbinfo, struct in_addr, 50598211Shsu int, struct inpcb *(*)(struct inpcb *, int)); 506185773Srwatsonvoid in_pcbref(struct inpcb *); 50792723Salfredvoid in_pcbrehash(struct inpcb *); 508185773Srwatsonint in_pcbrele(struct inpcb *); 509122875Srwatsonvoid in_pcbsetsolabel(struct socket *so); 510169462Srwatsonint in_getpeeraddr(struct socket *so, struct sockaddr **nam); 511169462Srwatsonint in_getsockaddr(struct socket *so, struct sockaddr **nam); 512102218Struckmanstruct sockaddr * 513102218Struckman in_sockaddr(in_port_t port, struct in_addr *addr); 514122875Srwatsonvoid in_pcbsosetlabel(struct socket *so); 515139558Ssilbyvoid ipport_tick(void *xtp); 51655205Speter#endif /* _KERNEL */ 51734881Swollman 51834923Sbde#endif /* !_NETINET_IN_PCB_H_ */ 519