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Diffstat (limited to 'netwerk/sctp/src/user_inpcb.h')
| -rw-r--r-- | netwerk/sctp/src/user_inpcb.h | 373 |
1 files changed, 373 insertions, 0 deletions
diff --git a/netwerk/sctp/src/user_inpcb.h b/netwerk/sctp/src/user_inpcb.h new file mode 100644 index 0000000000..2e6e9334ea --- /dev/null +++ b/netwerk/sctp/src/user_inpcb.h @@ -0,0 +1,373 @@ +/*- + * 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. 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 1.100.2.1 2007/12/07 05:46:08 kmacy Exp $ + */ + +#ifndef _USER_INPCB_H_ +#define _USER_INPCB_H_ + +#include <user_route.h> /* was <net/route.h> */ + +struct inpcbpolicy; + +/* + * Struct inpcb is the ommon structure pcb for the Internet Protocol + * implementation. + * + * 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) are stored here. + */ +LIST_HEAD(inpcbhead, inpcb); +LIST_HEAD(inpcbporthead, inpcbport); + +/* + * 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 utilizing + * the following structure. + */ +struct in_addr_4in6 { + uint32_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 { + uint16_t ie_fport; /* foreign port */ + uint16_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 The defines for inc_* are hacks and should be changed to direct + * references. + */ +struct in_conninfo { + uint8_t inc_flags; + uint8_t inc_len; + uint16_t inc_pad; /* XXX alignment for in_endpoints */ + /* protocol dependent part */ + struct in_endpoints inc_ie; +}; +#define inc_isipv6 inc_flags /* temp compatibility */ +#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 inc6_faddr inc_ie.ie6_faddr +#define inc6_laddr inc_ie.ie6_laddr + +struct icmp6_filter; + +struct inpcb { + LIST_ENTRY(inpcb) inp_hash; /* hash list */ + LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */ + void *inp_ppcb; /* pointer to per-protocol pcb */ + struct inpcbinfo *inp_pcbinfo; /* PCB list info */ + struct socket *inp_socket; /* back pointer to socket */ + + uint32_t inp_flow; + int inp_flags; /* generic IP/datagram flags */ + + u_char inp_vflag; /* IP version flag (v4/v6) */ +#define INP_IPV4 0x1 +#define INP_IPV6 0x2 +#define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */ +#define INP_TIMEWAIT 0x8 /* .. probably doesn't go here */ +#define INP_ONESBCAST 0x10 /* send all-ones broadcast */ +#define INP_DROPPED 0x20 /* protocol drop flag */ +#define INP_SOCKREF 0x40 /* strong socket reference */ +#define INP_CONN 0x80 + u_char inp_ip_ttl; /* time to live proto */ + u_char inp_ip_p; /* protocol proto */ + u_char inp_ip_minttl; /* minimum TTL or drop */ + uint32_t inp_ispare1; /* connection id / queue id */ + void *inp_pspare[2]; /* rtentry / general use */ + + /* Local and foreign ports, local and foreign addr. */ + struct in_conninfo inp_inc; + + /* list for this PCB's local port */ + struct label *inp_label; /* MAC label */ + struct inpcbpolicy *inp_sp; /* for IPSEC */ + + /* 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_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 */ +#if 0 + struct ip6_moptions *inp6_moptions; +#endif + /* ICMPv6 code type filter */ + struct icmp6_filter *inp6_icmp6filt; + /* IPV6_CHECKSUM setsockopt */ + int inp6_cksum; + short inp6_hops; + } inp_depend6; + LIST_ENTRY(inpcb) inp_portlist; + struct inpcbport *inp_phd; /* head of this list */ +#define inp_zero_size offsetof(struct inpcb, inp_gencnt) + struct mtx inp_mtx; + +#define in6p_faddr inp_inc.inc6_faddr +#define in6p_laddr inp_inc.inc6_laddr +#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 +#if 0 +#define in6p_moptions inp_depend6.inp6_moptions +#endif +#define in6p_icmp6filt inp_depend6.inp6_icmp6filt +#define in6p_cksum inp_depend6.inp6_cksum +#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. + */ + +struct inpcbport { + LIST_ENTRY(inpcbport) phd_hash; + struct inpcbhead phd_pcblist; + u_short phd_port; +}; + +/* + * Global data structure for each high-level protocol (UDP, TCP, ...) in both + * IPv4 and IPv6. Holds inpcb lists and information for managing them. + */ +struct inpcbinfo { + /* + * Global list of inpcbs on the protocol. + */ + struct inpcbhead *ipi_listhead; + u_int ipi_count; + + /* + * Global hash of inpcbs, hashed by local and foreign addresses and + * port numbers. + */ + struct inpcbhead *ipi_hashbase; + u_long ipi_hashmask; + + /* + * Global hash of inpcbs, hashed by only local port number. + */ + struct inpcbporthead *ipi_porthashbase; + u_long ipi_porthashmask; + + /* + * Fields associated with port lookup and allocation. + */ + u_short ipi_lastport; + u_short ipi_lastlow; + u_short ipi_lasthi; + + /* + * UMA zone from which inpcbs are allocated for this protocol. + */ + struct uma_zone *ipi_zone; + + /* + * Generation count--incremented each time a connection is allocated + * or freed. + */ + struct mtx ipi_mtx; + + /* + * vimage 1 + * general use 1 + */ + void *ipi_pspare[2]; +}; + +#define INP_LOCK_INIT(inp, d, t) \ + mtx_init(&(inp)->inp_mtx, (d), (t), MTX_DEF | MTX_RECURSE | MTX_DUPOK) +#define INP_LOCK_DESTROY(inp) mtx_destroy(&(inp)->inp_mtx) +#define INP_LOCK(inp) mtx_lock(&(inp)->inp_mtx) +#define INP_UNLOCK(inp) mtx_unlock(&(inp)->inp_mtx) +#define INP_LOCK_ASSERT(inp) mtx_assert(&(inp)->inp_mtx, MA_OWNED) +#define INP_UNLOCK_ASSERT(inp) mtx_assert(&(inp)->inp_mtx, MA_NOTOWNED) + +#define INP_INFO_LOCK_INIT(ipi, d) \ + mtx_init(&(ipi)->ipi_mtx, (d), NULL, MTX_DEF | MTX_RECURSE) +#define INP_INFO_LOCK_DESTROY(ipi) mtx_destroy(&(ipi)->ipi_mtx) +#define INP_INFO_RLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx) +#define INP_INFO_WLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx) +#define INP_INFO_RUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx) +#define INP_INFO_WUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx) +#define INP_INFO_RLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_OWNED) +#define INP_INFO_WLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_OWNED) +#define INP_INFO_UNLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_NOTOWNED) + +#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 INP_RECVTTL 0x400 /* receive incoming IP TTL */ +#define INP_DONTFRAG 0x800 /* don't fragment packet */ + +#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_TCLASS 0x400000 /* receive traffic class value */ +#define IN6P_AUTOFLOWLABEL 0x800000 /* attach flowlabel automatically */ +#define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */ +#define IN6P_MTU 0x80000000 /* receive path MTU */ + +#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\ + INP_RECVIF|INP_RECVTTL|\ + IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\ + IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\ + IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\ + IN6P_MTU) +#define INP_UNMAPPABLEOPTS (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\ + IN6P_TCLASS|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 INP_SOCKAF(so) so->so_proto->pr_domain->dom_family + +#define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af) + +extern int ipport_reservedhigh; +extern int ipport_reservedlow; +extern int ipport_lowfirstauto; +extern int ipport_lowlastauto; +extern int ipport_firstauto; +extern int ipport_lastauto; +extern int ipport_hifirstauto; +extern int ipport_hilastauto; +extern struct callout ipport_tick_callout; + +void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *); +int in_pcballoc(struct socket *, struct inpcbinfo *); +int in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *); +int in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *); +void in_pcbdetach(struct inpcb *); +void in_pcbdisconnect(struct inpcb *); +void in_pcbdrop(struct inpcb *); +void in_pcbfree(struct inpcb *); +int in_pcbinshash(struct inpcb *); +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 inpcbinfo *pcbinfo, struct in_addr, + int, struct inpcb *(*)(struct inpcb *, int)); +void in_pcbrehash(struct inpcb *); +void in_pcbsetsolabel(struct socket *so); +int in_getpeeraddr(struct socket *so, struct sockaddr **nam); +int in_getsockaddr(struct socket *so, struct sockaddr **nam); +void in_pcbsosetlabel(struct socket *so); +void in_pcbremlists(struct inpcb *inp); +void ipport_tick(void *xtp); + +/* + * Debugging routines compiled in when DDB is present. + */ +void db_print_inpcb(struct inpcb *inp, const char *name, int indent); + + +#endif /* !_NETINET_IN_PCB_H_ */ |