/* * 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 * $Id$ */ #ifndef _NETINET_IN_PCB_H_ #define _NETINET_IN_PCB_H_ #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. */ LIST_HEAD(inpcbhead, inpcb); typedef u_int64_t inp_gen_t; struct inpcb { LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ LIST_ENTRY(inpcb) inp_hash; /* hash list */ struct inpcbinfo *inp_pcbinfo; /* PCB list info */ struct in_addr inp_faddr; /* foreign host table entry */ struct in_addr inp_laddr; /* local host table entry */ u_short inp_fport; /* foreign port */ u_short inp_lport; /* local port */ caddr_t inp_ppcb; /* pointer to per-protocol pcb */ struct socket *inp_socket; /* back pointer to socket */ struct mbuf *inp_options; /* IP options */ struct route inp_route; /* placeholder for routing entry */ int inp_flags; /* generic IP/datagram flags */ u_char inp_ip_tos; /* type of service proto */ u_char inp_ip_ttl; /* time to live proto */ u_char inp_ip_p; /* protocol proto */ u_char pad[1]; /* alignment */ struct ip_moptions *inp_moptions; /* IP multicast options */ inp_gen_t inp_gencnt; /* generation count of this instance */ #if 0 /* Someday, perhaps... */ struct ip inp_ip; /* header prototype; should have more */ #endif }; /* * Interface exported to userland by various protocols which use * inpcbs. Hack alert -- only define if struct xsocket is in scope. * * ccj - 20 Nov 2002 * Double hack alert. This is taken from the pre 5.0 sources and * merged into RTEMS. This allows the TCPCTL_PCBLIST code in * net-snmp to work. */ #ifdef _SYS_SOCKETVAR_H_ typedef u_int64_t so_gen_t; /* should be in sys/sockvar.h */ struct xinpcb { size_t xi_len; /* length of this structure */ struct inpcb xi_inp; /* struct xsocket xi_socket; ccj removed */ u_int64_t xi_alignment_hack; }; struct xinpgen { size_t xig_len; /* length of this structure */ u_int xig_count; /* number of PCBs at this time */ inp_gen_t xig_gen; /* generation count at this time */ so_gen_t xig_sogen; /* socket generation count at this time */ }; #endif /* _SYS_SOCKETVAR_H_ */ struct inpcbinfo { struct inpcbhead *listhead; struct inpcbhead *hashbase; unsigned long hashmask; unsigned short lastport; unsigned short lastlow; unsigned short lasthi; u_int ipi_count; /* number of pcbs in this list */ u_int64_t ipi_gencnt; /* current generation count */ }; #define INP_PCBHASH(faddr, lport, fport, mask) \ (((faddr) ^ ((faddr) >> 16) ^ (lport) ^ (fport)) & (mask)) /* flags in inp_flags: */ #define INP_RECVOPTS 0x01 /* receive incoming IP options */ #define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ #define INP_RECVDSTADDR 0x04 /* receive IP dst address */ #define INP_HDRINCL 0x08 /* user supplies entire IP header */ #define INP_HIGHPORT 0x10 /* user wants "high" port binding */ #define INP_LOWPORT 0x20 /* user wants "low" port binding */ #define INP_ANONPORT 0x40 /* port chosen for user */ #define INP_RECVIF 0x80 /* receive incoming interface */ #define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ INP_RECVIF) #define INPLOOKUP_WILDCARD 1 #define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) #ifdef _KERNEL void in_losing __P((struct inpcb *)); int in_pcballoc __P((struct socket *, struct inpcbinfo *)); int in_pcbbind __P((struct inpcb *, struct mbuf *)); int in_pcbconnect __P((struct inpcb *, struct mbuf *)); void in_pcbdetach __P((struct inpcb *)); void in_pcbdisconnect __P((struct inpcb *)); int in_pcbladdr __P((struct inpcb *, struct mbuf *, struct sockaddr_in **)); struct inpcb * in_pcblookup __P((struct inpcbinfo *, struct in_addr, u_int, struct in_addr, u_int, int)); struct inpcb * in_pcblookuphash __P((struct inpcbinfo *, struct in_addr, u_int, struct in_addr, u_int, int)); void in_pcbnotify __P((struct inpcbhead *, struct sockaddr *, u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int))); void in_pcbrehash __P((struct inpcb *)); void in_setpeeraddr __P((struct inpcb *, struct mbuf *)); void in_setsockaddr __P((struct inpcb *, struct mbuf *)); #endif #endif