ipfilter 3.0.4

1 files changed, 177 insertions, 0 deletions

diff --git a/usr.sbin/ipsend/common/in_var.h b/usr.sbin/ipsend/common/in_var.h
new file mode 100644
index 00000000000..63980ef304e
--- /dev/null
+++ b/usr.sbin/ipsend/common/in_var.h
@@ -0,0 +1,177 @@
+/*	@(#)in_var.h 1.3 88/08/19 SMI; from UCB 7.1 6/5/86	*/
+
+/*
+ * Copyright (c) 1985, 1986 Regents of the University of California.
+ * All rights reserved.  The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+/*
+ * Interface address, Internet version.  One of these structures
+ * is allocated for each interface with an Internet address.
+ * The ifaddr structure contains the protocol-independent part
+ * of the structure and is assumed to be first.
+ */
+
+#ifndef _netinet_in_var_h
+#define _netinet_in_var_h
+
+struct in_ifaddr {
+	struct	ifaddr ia_ifa;		/* protocol-independent info */
+#define	ia_addr	ia_ifa.ifa_addr
+#define	ia_broadaddr	ia_ifa.ifa_broadaddr
+#define	ia_dstaddr	ia_ifa.ifa_dstaddr
+#define	ia_ifp		ia_ifa.ifa_ifp
+	u_long	ia_net;			/* network number of interface */
+	u_long	ia_netmask;		/* mask of net part */
+	u_long	ia_subnet;		/* subnet number, including net */
+	u_long	ia_subnetmask;		/* mask of net + subnet */
+	struct	in_addr ia_netbroadcast; /* broadcast addr for (logical) net */
+	int	ia_flags;
+	struct	in_ifaddr *ia_next;	/* next in list of internet addresses */
+	struct	in_multi *ia_multiaddrs;/* list of multicast addresses */
+};
+/*
+ * Given a pointer to an in_ifaddr (ifaddr),
+ * return a pointer to the addr as a sockadd_in.
+ */
+#define	IA_SIN(ia) ((struct sockaddr_in *)(&((struct in_ifaddr *)ia)->ia_addr))
+/*
+ * ia_flags
+ */
+#define	IFA_ROUTE	0x01		/* routing entry installed */
+
+#ifdef	KERNEL
+struct	in_ifaddr *in_ifaddr;
+struct	in_ifaddr *in_iaonnetof();
+struct	ifqueue	ipintrq;		/* ip packet input queue */
+#endif
+
+#ifdef KERNEL
+/*
+ * Macro for finding the interface (ifnet structure) corresponding to one
+ * of our IP addresses.
+ */
+#define INADDR_TO_IFP(addr, ifp)					  \
+	/* struct in_addr addr; */					  \
+	/* struct ifnet  *ifp;  */					  \
+{									  \
+	register struct in_ifaddr *ia;					  \
+									  \
+	for (ia = in_ifaddr;						  \
+	     ia != NULL && IA_SIN(ia)->sin_addr.s_addr != (addr).s_addr;  \
+	     ia = ia->ia_next);						  \
+	(ifp) = (ia == NULL) ? NULL : ia->ia_ifp;			  \
+}
+
+/*
+ * Macro for finding the internet address structure (in_ifaddr) corresponding
+ * to a given interface (ifnet structure).
+ */
+#define IFP_TO_IA(ifp, ia)						  \
+	/* struct ifnet     *ifp; */					  \
+	/* struct in_ifaddr *ia;  */					  \
+{									  \
+	for ((ia) = in_ifaddr;						  \
+	     (ia) != NULL && (ia)->ia_ifp != (ifp);			  \
+	     (ia) = (ia)->ia_next);					  \
+}
+#endif KERNEL
+
+/*
+ * Per-interface router version information is kept in this list.
+ * This information should be part of the ifnet structure but we don't wish
+ * to change that - as it might break a number of things
+ */
+
+struct router_info {
+	struct ifnet *ifp;
+	int    type; /* type of router which is querier on this interface */
+	int    time; /* # of slow timeouts since last old query */
+	struct router_info *next;
+};
+
+/*
+ * Internet multicast address structure.  There is one of these for each IP
+ * multicast group to which this host belongs on a given network interface.
+ * They are kept in a linked list, rooted in the interface's in_ifaddr
+ * structure.
+ */
+
+struct in_multi {
+	struct in_addr	   inm_addr;	/* IP multicast address             */
+	struct ifnet      *inm_ifp;	/* back pointer to ifnet            */
+	struct in_ifaddr  *inm_ia;	/* back pointer to in_ifaddr        */
+	u_int		   inm_refcount;/* no. membership claims by sockets */
+	u_int		   inm_timer;	/* IGMP membership report timer     */
+	struct in_multi   *inm_next;	/* ptr to next multicast address    */
+	u_int              inm_state;   /*  state of the membership */
+	struct router_info *inm_rti;     /* router info*/
+};
+
+#ifdef KERNEL
+/*
+ * Structure used by macros below to remember position when stepping through
+ * all of the in_multi records.
+ */
+struct in_multistep {
+	struct in_ifaddr *i_ia;
+	struct in_multi  *i_inm;
+};
+
+/*
+ * Macro for looking up the in_multi record for a given IP multicast address
+ * on a given interface.  If no matching record is found, "inm" returns NULL.
+ */
+#define IN_LOOKUP_MULTI(addr, ifp, inm)					    \
+	/* struct in_addr  addr; */					    \
+	/* struct ifnet    *ifp; */					    \
+	/* struct in_multi *inm; */					    \
+{									    \
+	register struct in_ifaddr *ia;					    \
+									    \
+	IFP_TO_IA((ifp), ia);						    \
+	if (ia == NULL)							    \
+		(inm) = NULL;						    \
+	else								    \
+	    for ((inm) = ia->ia_multiaddrs;				    \
+		 (inm) != NULL && (inm)->inm_addr.s_addr != (addr).s_addr;  \
+		 (inm) = inm->inm_next);				    \
+}
+
+/*
+ * Macro to step through all of the in_multi records, one at a time.
+ * The current position is remembered in "step", which the caller must
+ * provide.  IN_FIRST_MULTI(), below, must be called to initialize "step"
+ * and get the first record.  Both macros return a NULL "inm" when there
+ * are no remaining records.
+ */
+#define IN_NEXT_MULTI(step, inm)					\
+	/* struct in_multistep  step; */				\
+	/* struct in_multi     *inm;  */				\
+{									\
+	if (((inm) = (step).i_inm) != NULL) {				\
+		(step).i_inm = (inm)->inm_next;				\
+	}								\
+	else while ((step).i_ia != NULL) {				\
+		(inm) = (step).i_ia->ia_multiaddrs;			\
+		(step).i_ia = (step).i_ia->ia_next;			\
+		if ((inm) != NULL) {					\
+			(step).i_inm = (inm)->inm_next;			\
+			break;						\
+		}							\
+	}								\
+}
+
+#define IN_FIRST_MULTI(step, inm)					\
+	/* struct in_multistep  step; */				\
+	/* struct in_multi     *inm;  */				\
+{									\
+	(step).i_ia  = in_ifaddr;					\
+	(step).i_inm = NULL;						\
+	IN_NEXT_MULTI((step), (inm));					\
+}
+
+struct in_multi *in_addmulti();
+#endif KERNEL
+#endif /*!_netinet_in_var_h*/