diff options
Diffstat (limited to 'newlib/libc/sys/linux/include/netinet/in_pcb.h')
| -rw-r--r-- | newlib/libc/sys/linux/include/netinet/in_pcb.h | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/include/netinet/in_pcb.h b/newlib/libc/sys/linux/include/netinet/in_pcb.h new file mode 100644 index 000000000..50ddd273c --- /dev/null +++ b/newlib/libc/sys/linux/include/netinet/in_pcb.h @@ -0,0 +1,335 @@ +/* + * Copyright (c) 1982, 1986, 1990, 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. + * + * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93 + * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.48 2002/04/09 20:04:10 jhb Exp $ + */ + +#ifndef _NETINET_IN_PCB_H_ +#define _NETINET_IN_PCB_H_ + +#include <sys/queue.h> + +#include <net/route.h> +#include <netinet6/ipsec.h> /* for IPSEC */ +#include <vm/uma.h> + +#define in6pcb inpcb /* for KAME src sync over BSD*'s */ +#define in6p_sp inp_sp /* for KAME src sync over BSD*'s */ + +/* + * Common structure pcb for internet protocol implementation. + * Here are stored pointers to local and foreign host table + * entries, local and foreign socket numbers, and pointers + * up (to a socket structure) and down (to a protocol-specific) + * control block. + */ +LIST_HEAD(inpcbhead, inpcb); +LIST_HEAD(inpcbporthead, inpcbport); +typedef u_quad_t inp_gen_t; + +/* + * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet. + * So, AF_INET6 null laddr is also used as AF_INET null laddr, + * by utilize following structure. (At last, same as INRIA) + */ +struct in_addr_4in6 { + u_int32_t ia46_pad32[3]; + struct in_addr ia46_addr4; +}; + +/* + * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553. + * in_conninfo has some extra padding to accomplish this. + */ +struct in_endpoints { + u_int16_t ie_fport; /* foreign port */ + u_int16_t ie_lport; /* local port */ + /* protocol dependent part, local and foreign addr */ + union { + /* foreign host table entry */ + struct in_addr_4in6 ie46_foreign; + struct in6_addr ie6_foreign; + } ie_dependfaddr; + union { + /* local host table entry */ + struct in_addr_4in6 ie46_local; + struct in6_addr ie6_local; + } ie_dependladdr; +#define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4 +#define ie_laddr ie_dependladdr.ie46_local.ia46_addr4 +#define ie6_faddr ie_dependfaddr.ie6_foreign +#define ie6_laddr ie_dependladdr.ie6_local +}; + +/* + * XXX + * At some point struct route should possibly change to: + * struct rtentry *rt + * struct in_endpoints *ie; + */ +struct in_conninfo { + u_int8_t inc_flags; + u_int8_t inc_len; + u_int16_t inc_pad; /* XXX alignment for in_endpoints */ + /* protocol dependent part; cached route */ + struct in_endpoints inc_ie; + union { + /* placeholder for routing entry */ + struct route inc4_route; + struct route_in6 inc6_route; + } inc_dependroute; +}; +#define inc_isipv6 inc_flags /* temp compatability */ +#define inc_fport inc_ie.ie_fport +#define inc_lport inc_ie.ie_lport +#define inc_faddr inc_ie.ie_faddr +#define inc_laddr inc_ie.ie_laddr +#define inc_route inc_dependroute.inc4_route +#define inc6_faddr inc_ie.ie6_faddr +#define inc6_laddr inc_ie.ie6_laddr +#define inc6_route inc_dependroute.inc6_route + +struct icmp6_filter; + +struct inpcb { + LIST_ENTRY(inpcb) inp_hash; /* hash list */ + LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ + u_int32_t inp_flow; + + /* local and foreign ports, local and foreign addr */ + struct in_conninfo inp_inc; + + caddr_t inp_ppcb; /* pointer to per-protocol pcb */ + struct inpcbinfo *inp_pcbinfo; /* PCB list info */ + struct socket *inp_socket; /* back pointer to socket */ + /* list for this PCB's local port */ + int inp_flags; /* generic IP/datagram flags */ + + struct inpcbpolicy *inp_sp; /* for IPSEC */ + u_char inp_vflag; /* IP version flag (v4/v6) */ +#define INP_IPV4 0x1 +#define INP_IPV6 0x2 + u_char inp_ip_ttl; /* time to live proto */ + u_char inp_ip_p; /* protocol proto */ + + /* protocol dependent part; options */ + struct { + u_char inp4_ip_tos; /* type of service proto */ + struct mbuf *inp4_options; /* IP options */ + struct ip_moptions *inp4_moptions; /* IP multicast options */ + } inp_depend4; +#define inp_fport inp_inc.inc_fport +#define inp_lport inp_inc.inc_lport +#define inp_faddr inp_inc.inc_faddr +#define inp_laddr inp_inc.inc_laddr +#define inp_route inp_inc.inc_route +#define inp_ip_tos inp_depend4.inp4_ip_tos +#define inp_options inp_depend4.inp4_options +#define inp_moptions inp_depend4.inp4_moptions + struct { + /* IP options */ + struct mbuf *inp6_options; + /* IP6 options for outgoing packets */ + struct ip6_pktopts *inp6_outputopts; + /* IP multicast options */ + struct ip6_moptions *inp6_moptions; + /* ICMPv6 code type filter */ + struct icmp6_filter *inp6_icmp6filt; + /* IPV6_CHECKSUM setsockopt */ + int inp6_cksum; + u_short inp6_ifindex; + short inp6_hops; + u_int8_t inp6_hlim; + } inp_depend6; + LIST_ENTRY(inpcb) inp_portlist; + struct inpcbport *inp_phd; /* head of this list */ + inp_gen_t inp_gencnt; /* generation count of this instance */ +#define in6p_faddr inp_inc.inc6_faddr +#define in6p_laddr inp_inc.inc6_laddr +#define in6p_route inp_inc.inc6_route +#define in6p_ip6_hlim inp_depend6.inp6_hlim +#define in6p_hops inp_depend6.inp6_hops /* default hop limit */ +#define in6p_ip6_nxt inp_ip_p +#define in6p_flowinfo inp_flow +#define in6p_vflag inp_vflag +#define in6p_options inp_depend6.inp6_options +#define in6p_outputopts inp_depend6.inp6_outputopts +#define in6p_moptions inp_depend6.inp6_moptions +#define in6p_icmp6filt inp_depend6.inp6_icmp6filt +#define in6p_cksum inp_depend6.inp6_cksum +#define inp6_ifindex inp_depend6.inp6_ifindex +#define in6p_flags inp_flags /* for KAME src sync over BSD*'s */ +#define in6p_socket inp_socket /* for KAME src sync over BSD*'s */ +#define in6p_lport inp_lport /* for KAME src sync over BSD*'s */ +#define in6p_fport inp_fport /* for KAME src sync over BSD*'s */ +#define in6p_ppcb inp_ppcb /* for KAME src sync over BSD*'s */ +}; +/* + * The range of the generation count, as used in this implementation, + * is 9e19. We would have to create 300 billion connections per + * second for this number to roll over in a year. This seems sufficiently + * unlikely that we simply don't concern ourselves with that possibility. + */ + +/* + * Interface exported to userland by various protocols which use + * inpcbs. Hack alert -- only define if struct xsocket is in scope. + */ +#ifdef _SYS_SOCKETVAR_H_ +struct xinpcb { + size_t xi_len; /* length of this structure */ + struct inpcb xi_inp; + struct xsocket xi_socket; + u_quad_t xi_alignment_hack; +}; + +struct xinpgen { + size_t xig_len; /* length of this structure */ + u_int xig_count; /* number of PCBs at this time */ + inp_gen_t xig_gen; /* generation count at this time */ + so_gen_t xig_sogen; /* socket generation count at this time */ +}; +#endif /* _SYS_SOCKETVAR_H_ */ + +struct inpcbport { + LIST_ENTRY(inpcbport) phd_hash; + struct inpcbhead phd_pcblist; + u_short phd_port; +}; + +struct inpcbinfo { /* XXX documentation, prefixes */ + struct inpcbhead *hashbase; + u_long hashmask; + struct inpcbporthead *porthashbase; + u_long porthashmask; + struct inpcbhead *listhead; + u_short lastport; + u_short lastlow; + u_short lasthi; + uma_zone_t ipi_zone; /* zone to allocate pcbs from */ + u_int ipi_count; /* number of pcbs in this list */ + u_quad_t ipi_gencnt; /* current generation count */ +}; + +#define INP_PCBHASH(faddr, lport, fport, mask) \ + (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask)) +#define INP_PCBPORTHASH(lport, mask) \ + (ntohs((lport)) & (mask)) + +/* flags in inp_flags: */ +#define INP_RECVOPTS 0x01 /* receive incoming IP options */ +#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */ +#define INP_RECVDSTADDR 0x04 /* receive IP dst address */ +#define INP_HDRINCL 0x08 /* user supplies entire IP header */ +#define INP_HIGHPORT 0x10 /* user wants "high" port binding */ +#define INP_LOWPORT 0x20 /* user wants "low" port binding */ +#define INP_ANONPORT 0x40 /* port chosen for user */ +#define INP_RECVIF 0x80 /* receive incoming interface */ +#define INP_MTUDISC 0x100 /* user can do MTU discovery */ +#define INP_FAITH 0x200 /* accept FAITH'ed connections */ + +#define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */ + +#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */ +#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */ +#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */ +#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */ +#define IN6P_RTHDR 0x100000 /* receive routing header */ +#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */ +#define IN6P_AUTOFLOWLABEL 0x800000 /* attach flowlabel automatically */ +#define IN6P_BINDV6ONLY 0x10000000 /* do not grab IPv4 traffic */ + +#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ + INP_RECVIF|\ + IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\ + IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\ + IN6P_AUTOFLOWLABEL) +#define INP_UNMAPPABLEOPTS (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\ + IN6P_AUTOFLOWLABEL) + + /* for KAME src sync over BSD*'s */ +#define IN6P_HIGHPORT INP_HIGHPORT +#define IN6P_LOWPORT INP_LOWPORT +#define IN6P_ANONPORT INP_ANONPORT +#define IN6P_RECVIF INP_RECVIF +#define IN6P_MTUDISC INP_MTUDISC +#define IN6P_FAITH INP_FAITH +#define IN6P_CONTROLOPTS INP_CONTROLOPTS + /* + * socket AF version is {newer than,or include} + * actual datagram AF version + */ + +#define INPLOOKUP_WILDCARD 1 +#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb) +#define sotoin6pcb(so) sotoinpcb(so) /* for KAME src sync over BSD*'s */ + +#define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family + +#define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af) + +#ifdef _KERNEL +extern int ipport_lowfirstauto; +extern int ipport_lowlastauto; +extern int ipport_firstauto; +extern int ipport_lastauto; +extern int ipport_hifirstauto; +extern int ipport_hilastauto; + +void in_pcbpurgeif0(struct inpcb *, struct ifnet *); +void in_losing(struct inpcb *); +void in_rtchange(struct inpcb *, int); +int in_pcballoc(struct socket *, struct inpcbinfo *, struct thread *); +int in_pcbbind(struct inpcb *, struct sockaddr *, struct thread *); +int in_pcbconnect(struct inpcb *, struct sockaddr *, struct thread *); +void in_pcbdetach(struct inpcb *); +void in_pcbdisconnect(struct inpcb *); +int in_pcbinshash(struct inpcb *); +int in_pcbladdr(struct inpcb *, struct sockaddr *, + struct sockaddr_in **); +struct inpcb * + in_pcblookup_local(struct inpcbinfo *, + struct in_addr, u_int, int); +struct inpcb * + in_pcblookup_hash(struct inpcbinfo *, struct in_addr, u_int, + struct in_addr, u_int, int, struct ifnet *); +void in_pcbnotifyall(struct inpcbhead *, struct in_addr, + int, void (*)(struct inpcb *, int)); +void in_pcbrehash(struct inpcb *); +int in_setpeeraddr(struct socket *so, struct sockaddr **nam); +int in_setsockaddr(struct socket *so, struct sockaddr **nam); +void in_pcbremlists(struct inpcb *inp); +int prison_xinpcb(struct thread *td, struct inpcb *inp); +#endif /* _KERNEL */ + +#endif /* !_NETINET_IN_PCB_H_ */ |