1 /* $NetBSD: in_pcb.h,v 1.45 2007/12/16 18:39:57 elad Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1982, 1986, 1990, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 61 */ 62 63 #ifndef _NETINET_IN_PCB_H_ 64 #define _NETINET_IN_PCB_H_ 65 66 #include <sys/queue.h> 67 #include <netinet/in_pcb_hdr.h> 68 69 /* 70 * Common structure pcb for internet protocol implementation. 71 * Here are stored pointers to local and foreign host table 72 * entries, local and foreign socket numbers, and pointers 73 * up (to a socket structure) and down (to a protocol-specific) 74 * control block. 75 */ 76 struct inpcb { 77 struct inpcb_hdr inp_head; 78 #define inp_hash inp_head.inph_hash 79 #define inp_queue inp_head.inph_queue 80 #define inp_af inp_head.inph_af 81 #define inp_ppcb inp_head.inph_ppcb 82 #define inp_state inp_head.inph_state 83 #define inp_socket inp_head.inph_socket 84 #define inp_table inp_head.inph_table 85 #define inp_sp inp_head.inph_sp 86 struct route inp_route; /* placeholder for routing entry */ 87 u_int16_t inp_fport; /* foreign port */ 88 u_int16_t inp_lport; /* local port */ 89 int inp_flags; /* generic IP/datagram flags */ 90 struct ip inp_ip; /* header prototype; should have more */ 91 struct mbuf *inp_options; /* IP options */ 92 struct ip_moptions *inp_moptions; /* IP multicast options */ 93 int inp_errormtu; /* MTU of last xmit status = EMSGSIZE */ 94 }; 95 96 #define inp_faddr inp_ip.ip_dst 97 #define inp_laddr inp_ip.ip_src 98 99 /* flags in inp_flags: */ 100 #define INP_RECVOPTS 0x01 /* receive incoming IP options */ 101 #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ 102 #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ 103 #define INP_HDRINCL 0x08 /* user supplies entire IP header */ 104 #define INP_HIGHPORT 0x10 /* (unused; FreeBSD compat) */ 105 #define INP_LOWPORT 0x20 /* user wants "low" port binding */ 106 #define INP_ANONPORT 0x40 /* port chosen for user */ 107 #define INP_RECVIF 0x80 /* receive incoming interface */ 108 /* XXX should move to an UDP control block */ 109 #define INP_ESPINUDP 0x100 /* ESP over UDP for NAT-T */ 110 #define INP_ESPINUDP_NON_IKE 0x200 /* ESP over UDP for NAT-T */ 111 #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ 112 INP_RECVIF) 113 #define INP_ESPINUDP_ALL (INP_ESPINUDP|INP_ESPINUDP_NON_IKE) 114 #define INP_NOHEADER 0x400 /* Kernel removes IP header 115 * before feeding a packet 116 * to the raw socket user. 117 * The socket user will 118 * not supply an IP header. 119 * Cancels INP_HDRINCL. 120 */ 121 122 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) 123 124 #ifdef _KERNEL 125 void in_losing(struct inpcb *); 126 int in_pcballoc(struct socket *, void *); 127 int in_pcbbind(void *, struct mbuf *, struct lwp *); 128 int in_pcbconnect(void *, struct mbuf *, struct lwp *); 129 void in_pcbdetach(void *); 130 void in_pcbdisconnect(void *); 131 void in_pcbinit(struct inpcbtable *, int, int); 132 struct inpcb * 133 in_pcblookup_port(struct inpcbtable *, 134 struct in_addr, u_int, int); 135 struct inpcb * 136 in_pcblookup_bind(struct inpcbtable *, 137 struct in_addr, u_int); 138 struct inpcb * 139 in_pcblookup_connect(struct inpcbtable *, 140 struct in_addr, u_int, struct in_addr, u_int); 141 int in_pcbnotify(struct inpcbtable *, struct in_addr, u_int, 142 struct in_addr, u_int, int, void (*)(struct inpcb *, int)); 143 void in_pcbnotifyall(struct inpcbtable *, struct in_addr, int, 144 void (*)(struct inpcb *, int)); 145 void in_pcbpurgeif0(struct inpcbtable *, struct ifnet *); 146 void in_pcbpurgeif(struct inpcbtable *, struct ifnet *); 147 void in_pcbstate(struct inpcb *, int); 148 void in_rtchange(struct inpcb *, int); 149 void in_setpeeraddr(struct inpcb *, struct mbuf *); 150 void in_setsockaddr(struct inpcb *, struct mbuf *); 151 struct rtentry * 152 in_pcbrtentry(struct inpcb *); 153 extern struct sockaddr_in *in_selectsrc(struct sockaddr_in *, 154 struct route *, int, struct ip_moptions *, int *); 155 #endif 156 157 #endif /* !_NETINET_IN_PCB_H_ */ 158