--- /dev/null
+/*!\file netinet/ip_var.h
+ * Internal IP definitions and statistics.
+ */
+
+/*
+ * Copyright (c) 1982, 1986, 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.
+ *
+ * @(#)ip_var.h 8.2 (Berkeley) 1/9/95
+ * $Id: ip_var.h,v 1.24.2.2 1996/11/12 11:28:59 phk Exp $
+ */
+
+#ifndef __NETINET_IP_VAR_H
+#define __NETINET_IP_VAR_H
+
+#include <sys/packon.h>
+
+#if defined(__TURBOC__) || defined(__BORLANDC__)
+#pragma warn -bbf- /* "Bitfields must be signed or unsigned int" warning */
+#endif
+
+/*
+ * Overlay for ip header used by other protocols (tcp, udp).
+ */
+struct ipovly {
+ caddr_t ih_next, ih_prev; /* for protocol sequence q's */
+ u_char ih_x1; /* (unused) */
+ u_char ih_pr; /* protocol */
+ u_short ih_len; /* protocol length */
+ struct in_addr ih_src; /* source internet address */
+ struct in_addr ih_dst; /* destination internet address */
+};
+
+
+/*
+ * Ip header, when holding a fragment.
+ *
+ * Note: ipf_next must be at same offset as ipq_next above
+ */
+struct ipasfrag {
+ u_char ip_hl:4;
+ u_char ip_v:4;
+ u_char ipf_mff; /* XXX overlays ip_tos: use low bit
+ * to avoid destroying tos;
+ * copied from (ip_off&IP_MF) */
+ u_short ip_len;
+ u_short ip_id;
+ u_short ip_off;
+ u_char ip_ttl;
+ u_char ip_p;
+ u_short ip_sum;
+ struct ipasfrag *ipf_next; /* next fragment */
+ struct ipasfrag *ipf_prev; /* previous fragment */
+};
+
+#include <sys/packoff.h>
+
+/*
+ * Ip reassembly queue structure. Each fragment
+ * being reassembled is attached to one of these structures.
+ * They are timed out after ipq_ttl drops to 0, and may also
+ * be reclaimed if memory becomes tight.
+ */
+struct ipq {
+ struct ipq *next,*prev; /* to other reass headers */
+ u_char ipq_ttl; /* time for reass q to live */
+ u_char ipq_p; /* protocol of this fragment */
+ u_short ipq_id; /* sequence id for reassembly */
+ struct ipasfrag *ipq_next,*ipq_prev;
+ /* to ip headers of fragments */
+ struct in_addr ipq_src,ipq_dst;
+#ifdef IPDIVERT
+ u_short ipq_divert; /* divert protocol port */
+#endif
+};
+
+/*
+ * Structure stored in mbuf in inpcb.ip_options
+ * and passed to ip_output when ip options are in use.
+ * The actual length of the options (including ipopt_dst)
+ * is in m_len.
+ */
+#define MAX_IPOPTLEN 40
+
+struct ipoption {
+ struct in_addr ipopt_dst; /* first-hop dst if source routed */
+ char ipopt_list[MAX_IPOPTLEN]; /* options proper */
+};
+
+/*
+ * Structure attached to inpcb.ip_moptions and
+ * passed to ip_output when IP multicast options are in use.
+ */
+struct ip_moptions {
+ struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
+ u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
+ u_char imo_multicast_loop; /* 1 => hear sends if a member */
+ u_short imo_num_memberships; /* no. memberships this socket */
+ struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
+ u_long imo_multicast_vif; /* vif num outgoing multicasts */
+};
+
+struct ipstat {
+ u_long ips_total; /* total packets received */
+ u_long ips_badsum; /* checksum bad */
+ u_long ips_tooshort; /* packet too short */
+ u_long ips_toosmall; /* not enough data */
+ u_long ips_badhlen; /* ip header length < data size */
+ u_long ips_badlen; /* ip length < ip header length */
+ u_long ips_fragments; /* fragments received */
+ u_long ips_fragdropped; /* frags dropped (dups, out of space) */
+ u_long ips_fragtimeout; /* fragments timed out */
+ u_long ips_forward; /* packets forwarded */
+ u_long ips_cantforward; /* packets rcvd for unreachable dest */
+ u_long ips_redirectsent; /* packets forwarded on same net */
+ u_long ips_noproto; /* unknown or unsupported protocol */
+ u_long ips_delivered; /* datagrams delivered to upper level*/
+ u_long ips_localout; /* total ip packets generated here */
+ u_long ips_odropped; /* lost out packets due to nobufs, etc. */
+ u_long ips_idropped; /*!! new, lost in packets due to nobufs, etc. */
+ u_long ips_reassembled; /* total packets reassembled ok */
+ u_long ips_fragmented; /* datagrams successfully fragmented */
+ u_long ips_ofragments; /* output fragments created */
+ u_long ips_cantfrag; /* don't fragment flag was set, etc. */
+ u_long ips_badoptions; /* error in option processing */
+ u_long ips_noroute; /* packets discarded due to no route */
+ u_long ips_badvers; /* ip version != 4 */
+ u_long ips_rawout; /* total raw ip packets generated */
+ u_long ips_toolong; /* ip length > max ip packet size */
+};
+
+#if defined(__TURBOC__) || defined(__BORLANDC__)
+#pragma warn -bbf.
+#endif
+
+#endif
projects / oftp / blobdiff