diff options
Diffstat (limited to 'newlib/libc/sys/linux/include/netinet/ip_var.h')
| -rw-r--r-- | newlib/libc/sys/linux/include/netinet/ip_var.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/include/netinet/ip_var.h b/newlib/libc/sys/linux/include/netinet/ip_var.h new file mode 100644 index 000000000..8ee8602a8 --- /dev/null +++ b/newlib/libc/sys/linux/include/netinet/ip_var.h @@ -0,0 +1,206 @@ +/* + * 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 + * $FreeBSD: src/sys/netinet/ip_var.h,v 1.60 2002/03/19 21:25:46 alfred Exp $ + */ + +#ifndef _NETINET_IP_VAR_H_ +#define _NETINET_IP_VAR_H_ + +#include <sys/queue.h> + +/* + * Overlay for ip header used by other protocols (tcp, udp). + */ +struct ipovly { + u_char ih_x1[9]; /* (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 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 { + TAILQ_ENTRY(ipq) ipq_list; /* 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 mbuf *ipq_frags; /* to ip headers of fragments */ + struct in_addr ipq_src,ipq_dst; +#ifdef IPDIVERT + u_int32_t ipq_div_info; /* ipfw divert port & flags */ + u_int16_t ipq_div_cookie; /* ipfw divert cookie */ +#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 */ + struct in_addr imo_multicast_addr; /* ifindex/addr on MULTICAST_IF */ + 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_fastforward; /* packets fast 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 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 */ + u_long ips_notmember; /* multicasts for unregistered grps */ + u_long ips_nogif; /* no match gif found */ + u_long ips_badaddr; /* invalid address on header */ +}; + +#ifdef _KERNEL + +/* flags passed to ip_output as last parameter */ +#define IP_FORWARDING 0x1 /* most of ip header exists */ +#define IP_RAWOUTPUT 0x2 /* raw ip header exists */ +#define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */ +#define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */ + +struct ip; +struct inpcb; +struct route; +struct sockopt; + +extern struct ipstat ipstat; +#ifndef RANDOM_IP_ID +extern u_short ip_id; /* ip packet ctr, for ids */ +#endif +extern int ip_defttl; /* default IP ttl */ +extern int ipforwarding; /* ip forwarding */ +extern struct route ipforward_rt; /* ip forwarding cached route */ +extern u_char ip_protox[]; +extern struct socket *ip_rsvpd; /* reservation protocol daemon */ +extern struct socket *ip_mrouter; /* multicast routing daemon */ +extern int (*legal_vif_num)(int); +extern u_long (*ip_mcast_src)(int); +extern int rsvp_on; +extern struct pr_usrreqs rip_usrreqs; + +int ip_ctloutput(struct socket *, struct sockopt *sopt); +void ip_drain(void); +void ip_freemoptions(struct ip_moptions *); +void ip_init(void); +extern int (*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *, + struct ip_moptions *); +int ip_output(struct mbuf *, + struct mbuf *, struct route *, int, struct ip_moptions *); +struct in_ifaddr * + ip_rtaddr(struct in_addr, struct route *); +void ip_savecontrol(struct inpcb *, struct mbuf **, struct ip *, + struct mbuf *); +void ip_slowtimo(void); +struct mbuf * + ip_srcroute(void); +void ip_stripoptions(struct mbuf *, struct mbuf *); +#ifdef RANDOM_IP_ID +u_int16_t + ip_randomid(void); +#endif +int rip_ctloutput(struct socket *, struct sockopt *); +void rip_ctlinput(int, struct sockaddr *, void *); +void rip_init(void); +void rip_input(struct mbuf *, int); +int rip_output(struct mbuf *, struct socket *, u_long); +void ipip_input(struct mbuf *, int); +void rsvp_input(struct mbuf *, int); +int ip_rsvp_init(struct socket *); +int ip_rsvp_done(void); +int ip_rsvp_vif_init(struct socket *, struct sockopt *); +int ip_rsvp_vif_done(struct socket *, struct sockopt *); +void ip_rsvp_force_done(struct socket *); + +#ifdef IPDIVERT +void div_init(void); +void div_input(struct mbuf *, int); +void divert_packet(struct mbuf *, int, int); +extern struct pr_usrreqs div_usrreqs; +extern u_int16_t ip_divert_cookie; +#endif + +extern struct sockaddr_in *ip_fw_fwd_addr; + +void in_delayed_cksum(struct mbuf *m); + +#endif /* _KERNEL */ + +#endif /* !_NETINET_IP_VAR_H_ */ |