/* Parts of this file are covered under the following copyright */ /* * 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 8.1 (Berkeley) 6/10/93 */ #ifndef NETINET_IP_VAR_H #define NETINET_IP_VAR_H #include /* * Overlay for ip header used by other protocols (tcp, udp). */ struct ipovly { char * ih_next; char * ih_prev; uint8 ih_x1; /* (unused) */ uint8 ih_pr; /* protocol */ uint16 ih_len; /* protocol length */ struct in_addr ih_src; /* source internet address */ struct in_addr ih_dst; /* destination internet address */ }; /* * 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 */ int8 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 */ uint8 imo_multicast_ttl; /* TTL for outgoing multicasts */ uint8 imo_multicast_loop; /* 1 => here sends if a member */ uint16 imo_num_memberships; /* no. memberships this socket */ struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS]; }; struct ipasfrag { #if B_HOST_IS_BENDIAN uint8 ip_v:4; uint8 ip_hl:4; #else uint8 ip_hl:4; uint8 ip_v:4; #endif uint8 ipf_mff; int16 ip_len; uint16 ip_id; int16 ip_off; uint8 ip_ttl; uint8 ip_p; struct ipasfrag *ipf_next; struct ipasfrag *ipf_prev; }; struct ipq { struct ipq *next, *prev; uint8 ipq_ttl; uint8 ipq_p; uint16 ipq_id; struct ipasfrag *ipq_next, *ipq_prev; struct in_addr ipq_src, ipq_dst; }; struct ipstat { int32 ips_total; /* total packets received */ int32 ips_badsum; /* checksum bad */ int32 ips_tooshort; /* packet too short */ int32 ips_toosmall; /* not enough data */ int32 ips_badhlen; /* ip header length < data size */ int32 ips_badlen; /* ip length < ip header length */ int32 ips_fragments; /* fragments received */ int32 ips_fragdropped; /* frags dropped (dups, out of space) */ int32 ips_fragtimeout; /* fragments timed out */ int32 ips_forward; /* packets forwarded */ int32 ips_cantforward; /* packets rcvd for unreachable dest */ int32 ips_redirectsent; /* packets forwarded on same net */ int32 ips_noproto; /* unknown or unsupported protocol */ int32 ips_delivered; /* datagrams delivered to upper level*/ int32 ips_localout; /* total ip packets generated here */ int32 ips_odropped; /* lost packets due to nobufs, etc. */ int32 ips_reassembled; /* total packets reassembled ok */ int32 ips_fragmented; /* datagrams sucessfully fragmented */ int32 ips_ofragments; /* output fragments created */ int32 ips_cantfrag; /* don't fragment flag was set, etc. */ int32 ips_badoptions; /* error in option processing */ int32 ips_noroute; /* packets discarded due to no route */ int32 ips_badvers; /* ip version != 4 */ int32 ips_rawout; /* total raw ip packets generated */ int32 ips_badfrags; /* malformed fragments (bad length) */ int32 ips_rcvmemdrop; /* frags dropped for lack of memory */ int32 ips_toolong; /* ip length > max ip packet size */ int32 ips_nogif; /* no match gif found */ int32 ips_badaddr; /* invalid address on header */ int32 ips_inhwcsum; /* hardware checksummed on input */ int32 ips_outhwcsum; /* hardware checksummed on output */ }; //#ifdef _KERNEL_MODE #define IP_FORWARDING 0x1 /* most of ip header exists */ #define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */ #define IP_RAWOUTPUT 0x4 /* raw ip header exists */ #define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */ #define IP_MTUDISC 0x10 /* pmtu discovery, set DF */ #if 0 //struct ipstat ipstat; void ipv4_input(struct mbuf *, int); int ipv4_output(struct mbuf *, struct mbuf *, struct route *, int, void *); int ipv4_ctloutput(int, struct socket *, int, int, struct mbuf **); int ip_dooptions(struct mbuf *); void ip_stripoptions (struct mbuf *, struct mbuf *); struct mbuf *ip_srcroute(void); #endif /* _KERNEL_MODE */ #endif /* NETINET_IP_VAR_H */