136 lines
5.4 KiB
C
136 lines
5.4 KiB
C
/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef NETINET_IP_VAR_H
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#define NETINET_IP_VAR_H
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#include <netinet/in.h>
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#include <sys/socket.h>
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/*
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* Overlay for ip header used by other protocols (tcp, udp).
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*/
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struct ipovly {
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char * ih_next;
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char * ih_prev;
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uint8_t ih_x1; /* (unused) */
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uint8_t ih_pr; /* protocol */
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uint16_t ih_len; /* protocol length */
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struct in_addr ih_src; /* source internet address */
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struct in_addr ih_dst; /* destination internet address */
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};
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/*
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* Structure stored in mbuf in inpcb.ip_options
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* and passed to ip_output when ip options are in use.
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* The actual length of the options (including ipopt_dst)
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* is in m_len.
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*/
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#define MAX_IPOPTLEN 40
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struct ipoption {
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struct in_addr ipopt_dst; /* first-hop dst if source routed */
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int8_t ipopt_list[MAX_IPOPTLEN]; /* options proper */
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};
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/*
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* Structure attached to inpcb.ip_moptions and
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* passed to ip_output when IP multicast options are in use.
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*/
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struct ip_moptions {
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struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
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uint8_t imo_multicast_ttl; /* TTL for outgoing multicasts */
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uint8_t imo_multicast_loop; /* 1 => here sends if a member */
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uint16_t imo_num_memberships; /* no. memberships this socket */
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struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
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};
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struct ipasfrag {
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#if B_HOST_IS_BENDIAN
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uint8_t ip_v:4;
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uint8_t ip_hl:4;
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#else
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uint8_t ip_hl:4;
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uint8_t ip_v:4;
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#endif
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uint8_t ipf_mff;
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int16_t ip_len;
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uint16_t ip_id;
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int16_t ip_off;
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uint8_t ip_ttl;
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uint8_t ip_p;
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struct ipasfrag *ipf_next;
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struct ipasfrag *ipf_prev;
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};
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struct ipq {
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struct ipq *next, *prev;
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uint8_t ipq_ttl;
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uint8_t ipq_p;
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uint16_t ipq_id;
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struct ipasfrag *ipq_next, *ipq_prev;
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struct in_addr ipq_src, ipq_dst;
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};
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struct ipstat {
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int32_t ips_total; /* total packets received */
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int32_t ips_badsum; /* checksum bad */
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int32_t ips_tooshort; /* packet too short */
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int32_t ips_toosmall; /* not enough data */
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int32_t ips_badhlen; /* ip header length < data size */
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int32_t ips_badlen; /* ip length < ip header length */
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int32_t ips_fragments; /* fragments received */
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int32_t ips_fragdropped; /* frags dropped (dups, out of space) */
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int32_t ips_fragtimeout; /* fragments timed out */
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int32_t ips_forward; /* packets forwarded */
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int32_t ips_cantforward; /* packets rcvd for unreachable dest */
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int32_t ips_redirectsent; /* packets forwarded on same net */
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int32_t ips_noproto; /* unknown or unsupported protocol */
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int32_t ips_delivered; /* datagrams delivered to upper level*/
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int32_t ips_localout; /* total ip packets generated here */
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int32_t ips_odropped; /* lost packets due to nobufs, etc. */
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int32_t ips_reassembled; /* total packets reassembled ok */
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int32_t ips_fragmented; /* datagrams sucessfully fragmented */
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int32_t ips_ofragments; /* output fragments created */
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int32_t ips_cantfrag; /* don't fragment flag was set, etc. */
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int32_t ips_badoptions; /* error in option processing */
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int32_t ips_noroute; /* packets discarded due to no route */
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int32_t ips_badvers; /* ip version != 4 */
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int32_t ips_rawout; /* total raw ip packets generated */
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int32_t ips_badfrags; /* malformed fragments (bad length) */
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int32_t ips_rcvmemdrop; /* frags dropped for lack of memory */
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int32_t ips_toolong; /* ip length > max ip packet size */
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int32_t ips_nogif; /* no match gif found */
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int32_t ips_badaddr; /* invalid address on header */
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int32_t ips_inhwcsum; /* hardware checksummed on input */
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int32_t ips_outhwcsum; /* hardware checksummed on output */
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};
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#endif /* NETINET_IP_VAR_H */
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