1 files changed, 302 insertions, 0 deletions
diff --git a/sys/netinet/in_pcb.h b/sys/netinet/in_pcb.h
new file mode 100644
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+++ b/sys/netinet/in_pcb.h
@@ -0,0 +1,302 @@
+/*
+ * 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
+ * $FreeBSD$
+ */
+
+#ifndef _NETINET_IN_PCB_H_
+#define _NETINET_IN_PCB_H_
+
+#include <sys/queue.h>
+
+
+#include <netinet6/ipsec.h> /* for IPSEC */
+
+#define	in6pcb		inpcb	/* for KAME src sync over BSD*'s */
+#define	in6p_sp		inp_sp	/* for KAME src sync over BSD*'s */
+
+/*
+ * 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);
+LIST_HEAD(inpcbporthead, inpcbport);
+typedef	u_quad_t	inp_gen_t;
+
+/*
+ * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
+ * So, AF_INET6 null laddr is also used as AF_INET null laddr,
+ * by utilize following structure. (At last, same as INRIA)
+ */
+struct in_addr_4in6 {
+	u_int32_t	ia46_pad32[3];
+	struct	in_addr	ia46_addr4;
+};
+
+/*
+ * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS
+ * of the structure.  Therefore, it is important that the members in
+ * that position not contain any information which is required to be
+ * stable.
+ */
+struct	icmp6_filter;
+
+struct inpcb {
+	LIST_ENTRY(inpcb) inp_hash; /* hash list */
+	u_short	inp_fport;		/* foreign port */
+	u_short	inp_lport;		/* local port */
+	LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
+	u_int32_t	inp_flow;
+
+	/* protocol dependent part, local and foreign addr */
+	union {
+		/* foreign host table entry */
+		struct	in_addr_4in6 inp46_foreign;
+		struct	in6_addr inp6_foreign;
+	} inp_dependfaddr;
+	union {
+		/* local host table entry */
+		struct	in_addr_4in6 inp46_local;
+		struct	in6_addr inp6_local;
+	} inp_dependladdr;
+
+	caddr_t	inp_ppcb;		/* pointer to per-protocol pcb */
+	struct	inpcbinfo *inp_pcbinfo;	/* PCB list info */
+	struct	socket *inp_socket;	/* back pointer to socket */
+					/* list for this PCB's local port */
+	int	inp_flags;		/* generic IP/datagram flags */
+
+	/* protocol dependent part; cached route */
+	union {
+		/* placeholder for routing entry */
+		struct	route inp4_route;
+		struct	route_in6 inp6_route;
+	} inp_dependroute;
+
+	struct	inpcbpolicy *inp_sp; /* for IPSEC */
+	u_char	inp_vflag;
+#define	INP_IPV4	0x1
+#define	INP_IPV6	0x2
+	u_char	inp_ip_ttl;		/* time to live proto */
+	u_char	inp_ip_p;		/* protocol proto */
+
+	/* 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_faddr	inp_dependfaddr.inp46_foreign.ia46_addr4
+#define	inp_laddr	inp_dependladdr.inp46_local.ia46_addr4
+#define	inp_route	inp_dependroute.inp4_route
+#define	inp_ip_tos	inp_depend4.inp4_ip_tos
+#define	inp_options	inp_depend4.inp4_options
+#define	inp_moptions	inp_depend4.inp4_moptions
+	struct {
+		/* IP options */
+		struct	mbuf *inp6_options;
+		/* IP6 options for outgoing packets */
+		struct	ip6_pktopts *inp6_outputopts;
+		/* IP multicast options */
+		struct	ip6_moptions *inp6_moptions;
+		/* ICMPv6 code type filter */
+		struct	icmp6_filter *inp6_icmp6filt;
+		/* IPV6_CHECKSUM setsockopt */
+		int	inp6_cksum;
+		u_short	inp6_ifindex;
+		short	inp6_hops;
+		u_int8_t	inp6_hlim;
+	} inp_depend6;
+	LIST_ENTRY(inpcb) inp_portlist;
+	struct	inpcbport *inp_phd;	/* head of this list */
+	inp_gen_t	inp_gencnt;	/* generation count of this instance */
+#define	in6p_faddr	inp_dependfaddr.inp6_foreign
+#define	in6p_laddr	inp_dependladdr.inp6_local
+#define	in6p_route	inp_dependroute.inp6_route
+#define	in6p_ip6_hlim	inp_depend6.inp6_hlim
+#define	in6p_hops	inp_depend6.inp6_hops	/* default hop limit */
+#define	in6p_ip6_nxt	inp_ip_p
+#define	in6p_flowinfo	inp_flow
+#define	in6p_vflag	inp_vflag
+#define	in6p_options	inp_depend6.inp6_options
+#define	in6p_outputopts	inp_depend6.inp6_outputopts
+#define	in6p_moptions	inp_depend6.inp6_moptions
+#define	in6p_icmp6filt	inp_depend6.inp6_icmp6filt
+#define	in6p_cksum	inp_depend6.inp6_cksum
+#define	inp6_ifindex	inp_depend6.inp6_ifindex
+#define	in6p_flags	inp_flags  /* for KAME src sync over BSD*'s */
+#define	in6p_socket	inp_socket  /* for KAME src sync over BSD*'s */
+#define	in6p_lport	inp_lport  /* for KAME src sync over BSD*'s */
+#define	in6p_fport	inp_fport  /* for KAME src sync over BSD*'s */
+#define	in6p_ppcb	inp_ppcb  /* for KAME src sync over BSD*'s */
+};
+/*
+ * The range of the generation count, as used in this implementation,
+ * is 9e19.  We would have to create 300 billion connections per
+ * second for this number to roll over in a year.  This seems sufficiently
+ * unlikely that we simply don't concern ourselves with that possibility.
+ */
+
+/*
+ * 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;
+	u_quad_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 inpcbport {
+	LIST_ENTRY(inpcbport) phd_hash;
+	struct inpcbhead phd_pcblist;
+	u_short phd_port;
+};
+
+struct inpcbinfo {		/* XXX documentation, prefixes */
+	struct	inpcbhead *hashbase;
+	u_long	hashmask;
+	struct	inpcbporthead *porthashbase;
+	u_long	porthashmask;
+	struct	inpcbhead *listhead;
+	u_short	lastport;
+	u_short	lastlow;
+	u_short	lasthi;
+	struct	vm_zone *ipi_zone; /* zone to allocate pcbs from */
+	u_int	ipi_count;	/* number of pcbs in this list */
+	u_quad_t ipi_gencnt;	/* current generation count */
+};
+
+#define INP_PCBHASH(faddr, lport, fport, mask) \
+	(((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
+#define INP_PCBPORTHASH(lport, mask) \
+	(ntohs((lport)) & (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_MTUDISC		0x100	/* user can do MTU discovery */
+#define	INP_FAITH		0x200	/* accept FAITH'ed connections */
+#define	IN6P_PKTINFO		0x010000
+#define	IN6P_HOPLIMIT		0x020000
+#define	IN6P_NEXTHOP		0x040000
+#define	IN6P_HOPOPTS		0x080000
+#define	IN6P_DSTOPTS		0x100000
+#define	IN6P_RTHDR		0x200000
+#define	IN6P_BINDV6ONLY		0x400000
+#define	INP_CONTROLOPTS		(INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
+					INP_RECVIF|\
+				 IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_NEXTHOP|\
+				 IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR)
+
+#define	INP_UNMAPPABLEOPTS	(IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR)
+
+ /* for KAME src sync over BSD*'s */
+#define	IN6P_RECVOPTS		INP_RECVOPTS
+#define	IN6P_RECVRETOPTS	INP_RECVRETOPTS
+#define	IN6P_RECVDSTADDR	INP_RECVDSTADDR
+#define	IN6P_HDRINCL		INP_HDRINCL
+#define	IN6P_HIGHPORT		INP_HIGHPORT
+#define	IN6P_LOWPORT		INP_LOWPORT
+#define	IN6P_ANONPORT		INP_ANONPORT
+#define	IN6P_RECVIF		INP_RECVIF
+#define	IN6P_MTUDISC		INP_MTUDISC
+#define	IN6P_FAITH		INP_FAITH
+#define	IN6P_CONTROLOPTS INP_CONTROLOPTS
+	/*
+	 * socket AF version is {newer than,or include}
+	 * actual datagram AF version
+	 */
+
+#define	INPLOOKUP_WILDCARD	1
+#define	sotoinpcb(so)	((struct inpcb *)(so)->so_pcb)
+#define	sotoin6pcb(so)	sotoinpcb(so) /* for KAME src sync over BSD*'s */
+
+#define	INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
+
+#define	INP_CHECK_SOCKAF(so, af) 	(INP_SOCKAF(so) == af)
+
+#ifdef _KERNEL
+extern int	ipport_lowfirstauto;
+extern int	ipport_lowlastauto;
+extern int	ipport_firstauto;
+extern int	ipport_lastauto;
+extern int	ipport_hifirstauto;
+extern int	ipport_hilastauto;
+
+void	in_losing __P((struct inpcb *));
+void	in_rtchange __P((struct inpcb *, int));
+int	in_pcballoc __P((struct socket *, struct inpcbinfo *, struct proc *));
+int	in_pcbbind __P((struct inpcb *, struct sockaddr *, struct proc *));
+int	in_pcbconnect __P((struct inpcb *, struct sockaddr *, struct proc *));
+void	in_pcbdetach __P((struct inpcb *));
+void	in_pcbdisconnect __P((struct inpcb *));
+int	in_pcbinshash __P((struct inpcb *));
+int	in_pcbladdr __P((struct inpcb *, struct sockaddr *,
+	    struct sockaddr_in **));
+struct inpcb *
+	in_pcblookup_local __P((struct inpcbinfo *,
+	    struct in_addr, u_int, int));
+struct inpcb *
+	in_pcblookup_hash __P((struct inpcbinfo *,
+			       struct in_addr, u_int, struct in_addr, u_int,
+			       int, struct ifnet *));
+void	in_pcbnotifyall __P((struct inpcbhead *, struct in_addr,
+	    int, void (*)(struct inpcb *, int)));
+void	in_pcbrehash __P((struct inpcb *));
+int	in_setpeeraddr __P((struct socket *so, struct sockaddr **nam));
+int	in_setsockaddr __P((struct socket *so, struct sockaddr **nam));
+void	in_pcbremlists __P((struct inpcb *inp));
+int	prison_xinpcb __P((struct proc *p, struct inpcb *inp));
+#endif /* _KERNEL */
+
+#endif /* !_NETINET_IN_PCB_H_ */