/* $NetBSD: in_pcb.h,v 1.66 2018/05/31 07:03:57 maxv 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. 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 */ #ifndef _NETINET_IN_PCB_H_ #define _NETINET_IN_PCB_H_ #include #include #include /* * 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 { struct inpcb_hdr inp_head; #define inp_hash inp_head.inph_hash #define inp_queue inp_head.inph_queue #define inp_af inp_head.inph_af #define inp_ppcb inp_head.inph_ppcb #define inp_state inp_head.inph_state #define inp_portalgo inp_head.inph_portalgo #define inp_socket inp_head.inph_socket #define inp_table inp_head.inph_table #define inp_sp inp_head.inph_sp struct route inp_route; /* placeholder for routing entry */ u_int16_t inp_fport; /* foreign port */ u_int16_t inp_lport; /* local port */ int inp_flags; /* generic IP/datagram flags */ struct ip inp_ip; /* header prototype; should have more */ struct mbuf *inp_options; /* IP options */ struct ip_moptions *inp_moptions; /* IP multicast options */ int inp_errormtu; /* MTU of last xmit status = EMSGSIZE */ uint8_t inp_ip_minttl; bool inp_bindportonsend; struct in_addr inp_prefsrcip; /* preferred src IP when wild */ }; #define inp_faddr inp_ip.ip_dst #define inp_laddr inp_ip.ip_src /* flags in inp_flags: */ #define INP_RECVOPTS 0x0001 /* receive incoming IP options */ #define INP_RECVRETOPTS 0x0002 /* receive IP options for reply */ #define INP_RECVDSTADDR 0x0004 /* receive IP dst address */ #define INP_HDRINCL 0x0008 /* user supplies entire IP header */ #define INP_HIGHPORT 0x0010 /* (unused; FreeBSD compat) */ #define INP_LOWPORT 0x0020 /* user wants "low" port binding */ #define INP_ANONPORT 0x0040 /* port chosen for user */ #define INP_RECVIF 0x0080 /* receive incoming interface */ /* XXX should move to an UDP control block */ #define INP_ESPINUDP 0x0100 /* ESP over UDP for NAT-T */ #define INP_ESPINUDP_NON_IKE 0x0200 /* ESP over UDP for NAT-T */ #define INP_NOHEADER 0x0400 /* Kernel removes IP header * before feeding a packet * to the raw socket user. * The socket user will * not supply an IP header. * Cancels INP_HDRINCL. */ #define INP_RECVTTL 0x0800 /* receive incoming IP TTL */ #define INP_RECVPKTINFO 0x1000 /* receive IP dst if/addr */ #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ INP_RECVIF|INP_RECVTTL|INP_RECVPKTINFO) #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) #define inp_lock(inp) solock((inp)->inp_socket) #define inp_unlock(inp) sounlock((inp)->inp_socket) #define inp_locked(inp) solocked((inp)->inp_socket) #ifdef _KERNEL void in_losing(struct inpcb *); int in_pcballoc(struct socket *, void *); int in_pcbbindableaddr(struct sockaddr_in *, kauth_cred_t); int in_pcbbind(void *, struct sockaddr_in *, struct lwp *); int in_pcbconnect(void *, struct sockaddr_in *, struct lwp *); void in_pcbdetach(void *); void in_pcbdisconnect(void *); void in_pcbinit(struct inpcbtable *, int, int); struct inpcb * in_pcblookup_port(struct inpcbtable *, struct in_addr, u_int, int, struct vestigial_inpcb *); struct inpcb * in_pcblookup_bind(struct inpcbtable *, struct in_addr, u_int); struct inpcb * in_pcblookup_connect(struct inpcbtable *, struct in_addr, u_int, struct in_addr, u_int, struct vestigial_inpcb *); int in_pcbnotify(struct inpcbtable *, struct in_addr, u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)); void in_pcbnotifyall(struct inpcbtable *, struct in_addr, int, void (*)(struct inpcb *, int)); void in_pcbpurgeif0(struct inpcbtable *, struct ifnet *); void in_pcbpurgeif(struct inpcbtable *, struct ifnet *); void in_purgeifmcast(struct ip_moptions *, struct ifnet *); void in_pcbstate(struct inpcb *, int); void in_rtchange(struct inpcb *, int); void in_setpeeraddr(struct inpcb *, struct sockaddr_in *); void in_setsockaddr(struct inpcb *, struct sockaddr_in *); struct rtentry * in_pcbrtentry(struct inpcb *); void in_pcbrtentry_unref(struct rtentry *, struct inpcb *); #endif #endif /* !_NETINET_IN_PCB_H_ */