| /*- |
| * 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. |
| * 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 1.100.2.1 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 { |
| 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 The defines for inc_* are hacks and should be changed to direct |
| * references. |
| */ |
| 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 */ |
| 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 */ |
| |
| u_int32_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) |
| |
| /* #ifdef _KERNEL */ |
| 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 _KERNEL */ |
| |
| #endif /* !_NETINET_IN_PCB_H_ */ |