/* $OpenBSD: in_pcb.h,v 1.34 2001/05/21 03:02:18 angelos Exp $ */ /* $NetBSD: in_pcb.h,v 1.14 1996/02/13 23:42:00 christos Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Copyright (c) 1982, 1986, 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 */ #include #include #include #include #include union inpaddru { struct in6_addr iau_addr6; struct { uint8_t pad[12]; struct in_addr inaddr; /* easier transition */ } iau_a4u; }; /* * Common structure pcb for internet protocol implementation. * Here are stored pointers to local and foreign host table * entries, local and foreign socket numbers, and pointers * up (to a socket structure) and down (to a protocol-specific) * control block. */ struct inpcb { LIST_ENTRY(inpcb) inp_hash; CIRCLEQ_ENTRY(inpcb) inp_queue; struct inpcbtable *inp_table; union inpaddru inp_faddru; /* Foreign address. */ union inpaddru inp_laddru; /* Local address. */ #define inp_faddr inp_faddru.iau_a4u.inaddr #define inp_faddr6 inp_faddru.iau_addr6 #define inp_laddr inp_laddru.iau_a4u.inaddr #define inp_laddr6 inp_laddru.iau_addr6 u_int16_t inp_fport; /* foreign port */ u_int16_t inp_lport; /* local port */ struct socket *inp_socket; /* back pointer to socket */ caddr_t inp_ppcb; /* pointer to per-protocol pcb */ union { /* Route (notice increased size). */ struct route ru_route; struct route_in6 ru_route6; } inp_ru; #define inp_route inp_ru.ru_route #define inp_route6 inp_ru.ru_route6 int inp_flags; /* generic IP/datagram flags */ union { /* Header prototype. */ struct ip hu_ip; struct ip6_hdr hu_ipv6; } inp_hu; #define inp_ip inp_hu.hu_ip #define inp_ipv6 inp_hu.hu_ipv6 struct mbuf *inp_options; /* IP options */ struct ip6_pktopts *inp_outputopts6; /* IP6 options for outgoing packets */ int inp_hops; union { struct ip_moptions *mou_mo; /* IPv4 multicast options */ struct ip6_moptions *mou_mo6; /* IPv6 multicast options */ } inp_mou; #define inp_moptions inp_mou.mou_mo #define inp_moptions6 inp_mou.mou_mo6 u_char inp_seclevel[3]; #define SL_AUTH 0 /* Authentication level */ #define SL_ESP_TRANS 1 /* ESP transport level */ #define SL_ESP_NETWORK 2 /* ESP network (encapsulation) level */ u_int8_t inp_secrequire:4, /* Condensed State from above */ inp_secresult:4; /* Result from Key Management */ #define SR_FAILED 1 /* Negotiation failed permanently */ #define SR_SUCCESS 2 /* SA successfully established */ #define SR_WAIT 3 /* Waiting for SA */ TAILQ_ENTRY(inpcb) inp_tdb_in_next, inp_tdb_out_next; struct tdb *inp_tdb_in, *inp_tdb_out; struct ipsec_ref *inp_ipsec_localid; struct ipsec_ref *inp_ipsec_remoteid; struct ipsec_ref *inp_ipsec_localcred; struct ipsec_ref *inp_ipsec_remotecred; #define inp_flowinfo inp_hu.hu_ipv6.ip6_flow int in6p_cksum; #ifndef _KERNEL #define inp_csumoffset in6p_cksum #endif struct icmp6_filter *inp_icmp6filt; }; struct inpcbtable { CIRCLEQ_HEAD(, inpcb) inpt_queue; LIST_HEAD(inpcbhead, inpcb) *inpt_hashtbl; u_long inpt_hash; u_int16_t inpt_lastport; }; /* flags in inp_flags: */ #define INP_RECVOPTS 0x001 /* receive incoming IP options */ #define INP_RECVRETOPTS 0x002 /* receive IP options for reply */ #define INP_RECVDSTADDR 0x004 /* receive IP dst address */ #define INP_RXDSTOPTS INP_RECVOPTS #define INP_RXHOPOPTS INP_RECVRETOPTS #define INP_RXINFO INP_RECVDSTADDR #define INP_RXSRCRT 0x010 #define INP_HOPLIMIT 0x020 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR| \ INP_RXSRCRT|INP_HOPLIMIT) #define INP_HDRINCL 0x008 /* user supplies entire IP header */ #define INP_HIGHPORT 0x010 /* user wants "high" port binding */ #define INP_LOWPORT 0x020 /* user wants "low" port binding */ /* * These flags' values should be determined by either the transport * protocol at PRU_BIND, PRU_LISTEN, PRU_CONNECT, etc, or by in_pcb*(). */ #define INP_IPV6 0x100 /* sotopf(inp->inp_socket) == PF_INET6 */ #if 1 /*KAME*/ /* * Flags in in6p_flags * We define KAME's original flags in higher 16 bits as much as possible * for compatibility with *bsd*s. * XXX: Should IN6P_HIGHPORT and IN6P_LOWPORT be moved as well? */ #define IN6P_RECVOPTS INP_RECVOPTS /* recv incoming IP6 options */ #define IN6P_RECVRETOPTS INP_RECVRETOPTS /* recv IP6 options for reply */ #define IN6P_RECVDSTADDR INP_RECVDSTADDR /* recv IP6 dst address */ #define IN6P_HIGHPORT INP_HIGHPORT /* user wants "high" port */ #define IN6P_LOWPORT INP_LOWPORT /* user wants "low" port */ #define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */ #define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */ #define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */ #define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */ #define IN6P_RTHDR 0x100000 /* receive routing header */ #define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */ #define IN6P_ANONPORT 0x4000000 /* port chosen for user */ #define IN6P_FAITH 0x8000000 /* accept FAITH'ed connections */ #define IN6P_CONTROLOPTS (IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\ IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS) #endif #define INPLOOKUP_WILDCARD 1 #define INPLOOKUP_SETLOCAL 2 #define INPLOOKUP_IPV6 4 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) /* macros for handling bitmap of ports not to allocate dynamically */ #define DP_MAPBITS (sizeof(u_int32_t) * NBBY) #define DP_MAPSIZE (howmany(IPPORT_RESERVED/2, DP_MAPBITS)) #define DP_SET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] |= (1 << ((p) % DP_MAPBITS))) #define DP_CLR(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] &= ~(1 << ((p) % DP_MAPBITS))) #define DP_ISSET(m, p) ((m)[((p) - IPPORT_RESERVED/2) / DP_MAPBITS] & (1 << ((p) % DP_MAPBITS))) /* default values for baddynamicports [see ip_init()] */ #define DEFBADDYNAMICPORTS_TCP { 587, 749, 750, 751, 760, 761, 871, 0 } #define DEFBADDYNAMICPORTS_UDP { 750, 751, 0 } struct baddynamicports { u_int32_t tcp[DP_MAPSIZE]; u_int32_t udp[DP_MAPSIZE]; }; #ifdef _KERNEL #define sotopf(so) (so->so_proto->pr_domain->dom_family) void in_losing __P((struct inpcb *)); int in_pcballoc __P((struct socket *, void *)); int in_pcbbind __P((void *, struct mbuf *)); int in_pcbconnect __P((void *, struct mbuf *)); void in_pcbdetach __P((void *)); void in_pcbdisconnect __P((void *)); struct inpcb * in_pcbhashlookup __P((struct inpcbtable *, struct in_addr, u_int, struct in_addr, u_int)); #ifdef INET6 struct inpcb * in6_pcbhashlookup __P((struct inpcbtable *, struct in6_addr *, u_int, struct in6_addr *, u_int)); int in6_pcbbind __P((struct inpcb *, struct mbuf *)); int in6_pcbconnect __P((struct inpcb *, struct mbuf *)); int in6_setsockaddr __P((struct inpcb *, struct mbuf *)); int in6_setpeeraddr __P((struct inpcb *, struct mbuf *)); #endif /* INET6 */ void in_pcbinit __P((struct inpcbtable *, int)); struct inpcb * in_pcblookup __P((struct inpcbtable *, void *, u_int, void *, u_int, int)); void in_pcbnotify __P((struct inpcbtable *, struct sockaddr *, u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int))); void in_pcbnotifyall __P((struct inpcbtable *, struct sockaddr *, int, void (*)(struct inpcb *, int))); void in_pcbrehash __P((struct inpcb *)); void in_rtchange __P((struct inpcb *, int)); void in_setpeeraddr __P((struct inpcb *, struct mbuf *)); void in_setsockaddr __P((struct inpcb *, struct mbuf *)); int in_baddynamic __P((u_int16_t, u_int16_t)); extern struct sockaddr_in *in_selectsrc __P((struct sockaddr_in *, struct route *, int, struct ip_moptions *, int *)); struct rtentry * in_pcbrtentry __P((struct inpcb *)); /* INET6 stuff */ int in6_pcbnotify __P((struct inpcbtable *, struct sockaddr *, u_int, struct sockaddr *, u_int, int, void *, void (*)(struct inpcb *, int))); struct in6_addr *in6_selectsrc __P((struct sockaddr_in6 *, struct ip6_pktopts *, struct ip6_moptions *, struct route_in6 *, struct in6_addr *, int *)); int in6_selecthlim __P((struct inpcb *, struct ifnet *)); int in6_pcbsetport __P((struct in6_addr *, struct inpcb *)); #endif