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Diffstat (limited to 'cpukit/libnetworking/netinet/in_pcb.h')
| -rw-r--r-- | cpukit/libnetworking/netinet/in_pcb.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/cpukit/libnetworking/netinet/in_pcb.h b/cpukit/libnetworking/netinet/in_pcb.h new file mode 100644 index 0000000000..f3a3cc178d --- /dev/null +++ b/cpukit/libnetworking/netinet/in_pcb.h @@ -0,0 +1,153 @@ +/* + * 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. + * 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 + * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.89 2006/07/18 22:34:27 ups Exp $ + */ + +/* + * $Id$ + */ + +#ifndef _NETINET_IN_PCB_H_ +#define _NETINET_IN_PCB_H_ + +#include <sys/queue.h> + +/* + * 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_hash; /* hash list */ + LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ + 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 route inp_route; /* placeholder for routing entry */ + int inp_flags; /* generic IP/datagram flags */ + u_char inp_vflag; /* IP version flag (v4/v6) */ + u_char inp_ip_ttl; /* time to live proto */ + u_char inp_ip_p; /* protocol proto */ + u_char inp_ip_minttl; /* minimum TTL or drop */ + + /* protocol dependent part; options */ + struct { + u_char inp4_ip_tos; /* type of service proto */ + struct mbuf *inp4_options; /* IP options */ + struct ip_moptions *inp4_moptions; /* IP multicast options */ + } inp_depend4; +#define inp_ip_tos inp_depend4.inp4_ip_tos +#define inp_options inp_depend4.inp4_options +#define inp_moptions inp_depend4.inp4_moptions + inp_gen_t inp_gencnt; /* generation count of this instance */ +}; + +/* + * Interface exported to userland by various protocols which use + * inpcbs. Hack alert -- only define if struct xsocket is in scope. + */ +#ifdef _SYS_SOCKETVAR_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 { /* XXX documentation, prefixes */ + 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(struct inpcb *); +int in_pcballoc(struct socket *, struct inpcbinfo *); +int in_pcbbind(struct inpcb *, struct mbuf *); +int in_pcbconnect(struct inpcb *, struct mbuf *); +void in_pcbdetach(struct inpcb *); +void in_pcbdisconnect(struct inpcb *); +int in_pcbladdr(struct inpcb *, struct mbuf *, + struct sockaddr_in **); +struct inpcb * + in_pcblookup(struct inpcbinfo *, + struct in_addr, u_int, struct in_addr, u_int, int); +struct inpcb * + in_pcblookuphash(struct inpcbinfo *, + struct in_addr, u_int, struct in_addr, u_int, int); +void in_pcbnotify(struct inpcbhead *, struct sockaddr *, + u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)); +void in_pcbrehash(struct inpcb *); +void in_setpeeraddr(struct inpcb *, struct mbuf *); +void in_setsockaddr(struct inpcb *, struct mbuf *); +#endif /* _KERNEL */ + +#endif /* !_NETINET_IN_PCB_H_ */ |