1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/sctp/src/user_inpcb.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,378 @@
1.4 +/*-
1.5 + * Copyright (c) 1982, 1986, 1990, 1993
1.6 + * The Regents of the University of California. All rights reserved.
1.7 + *
1.8 + * Redistribution and use in source and binary forms, with or without
1.9 + * modification, are permitted provided that the following conditions
1.10 + * are met:
1.11 + * 1. Redistributions of source code must retain the above copyright
1.12 + * notice, this list of conditions and the following disclaimer.
1.13 + * 2. Redistributions in binary form must reproduce the above copyright
1.14 + * notice, this list of conditions and the following disclaimer in the
1.15 + * documentation and/or other materials provided with the distribution.
1.16 + * 4. Neither the name of the University nor the names of its contributors
1.17 + * may be used to endorse or promote products derived from this software
1.18 + * without specific prior written permission.
1.19 + *
1.20 + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.21 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.22 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.23 + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.24 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.25 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.26 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.27 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.28 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.29 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.30 + * SUCH DAMAGE.
1.31 + *
1.32 + * @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
1.33 + * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.100.2.1 2007/12/07 05:46:08 kmacy Exp $
1.34 + */
1.35 +
1.36 +#ifndef _USER_INPCB_H_
1.37 +#define _USER_INPCB_H_
1.38 +
1.39 +#include <user_route.h> /* was <net/route.h> */
1.40 +
1.41 +#define in6pcb inpcb /* for KAME src sync over BSD*'s */
1.42 +#define in6p_sp inp_sp /* for KAME src sync over BSD*'s */
1.43 +struct inpcbpolicy;
1.44 +
1.45 +/*
1.46 + * Struct inpcb is the ommon structure pcb for the Internet Protocol
1.47 + * implementation.
1.48 + *
1.49 + * Pointers to local and foreign host table entries, local and foreign socket
1.50 + * numbers, and pointers up (to a socket structure) and down (to a
1.51 + * protocol-specific control block) are stored here.
1.52 + */
1.53 +LIST_HEAD(inpcbhead, inpcb);
1.54 +LIST_HEAD(inpcbporthead, inpcbport);
1.55 +
1.56 +/*
1.57 + * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
1.58 + * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing
1.59 + * the following structure.
1.60 + */
1.61 +struct in_addr_4in6 {
1.62 + u_int32_t ia46_pad32[3];
1.63 + struct in_addr ia46_addr4;
1.64 +};
1.65 +
1.66 +/*
1.67 + * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553. in_conninfo has
1.68 + * some extra padding to accomplish this.
1.69 + */
1.70 +struct in_endpoints {
1.71 + u_int16_t ie_fport; /* foreign port */
1.72 + u_int16_t ie_lport; /* local port */
1.73 + /* protocol dependent part, local and foreign addr */
1.74 + union {
1.75 + /* foreign host table entry */
1.76 + struct in_addr_4in6 ie46_foreign;
1.77 + struct in6_addr ie6_foreign;
1.78 + } ie_dependfaddr;
1.79 + union {
1.80 + /* local host table entry */
1.81 + struct in_addr_4in6 ie46_local;
1.82 + struct in6_addr ie6_local;
1.83 + } ie_dependladdr;
1.84 +#define ie_faddr ie_dependfaddr.ie46_foreign.ia46_addr4
1.85 +#define ie_laddr ie_dependladdr.ie46_local.ia46_addr4
1.86 +#define ie6_faddr ie_dependfaddr.ie6_foreign
1.87 +#define ie6_laddr ie_dependladdr.ie6_local
1.88 +};
1.89 +
1.90 +/*
1.91 + * XXX The defines for inc_* are hacks and should be changed to direct
1.92 + * references.
1.93 + */
1.94 +struct in_conninfo {
1.95 + u_int8_t inc_flags;
1.96 + u_int8_t inc_len;
1.97 + u_int16_t inc_pad; /* XXX alignment for in_endpoints */
1.98 + /* protocol dependent part */
1.99 + struct in_endpoints inc_ie;
1.100 +};
1.101 +#define inc_isipv6 inc_flags /* temp compatability */
1.102 +#define inc_fport inc_ie.ie_fport
1.103 +#define inc_lport inc_ie.ie_lport
1.104 +#define inc_faddr inc_ie.ie_faddr
1.105 +#define inc_laddr inc_ie.ie_laddr
1.106 +#define inc6_faddr inc_ie.ie6_faddr
1.107 +#define inc6_laddr inc_ie.ie6_laddr
1.108 +
1.109 +struct icmp6_filter;
1.110 +
1.111 +struct inpcb {
1.112 + LIST_ENTRY(inpcb) inp_hash; /* hash list */
1.113 + LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
1.114 + void *inp_ppcb; /* pointer to per-protocol pcb */
1.115 + struct inpcbinfo *inp_pcbinfo; /* PCB list info */
1.116 + struct socket *inp_socket; /* back pointer to socket */
1.117 +
1.118 + u_int32_t inp_flow;
1.119 + int inp_flags; /* generic IP/datagram flags */
1.120 +
1.121 + u_char inp_vflag; /* IP version flag (v4/v6) */
1.122 +#define INP_IPV4 0x1
1.123 +#define INP_IPV6 0x2
1.124 +#define INP_IPV6PROTO 0x4 /* opened under IPv6 protocol */
1.125 +#define INP_TIMEWAIT 0x8 /* .. probably doesn't go here */
1.126 +#define INP_ONESBCAST 0x10 /* send all-ones broadcast */
1.127 +#define INP_DROPPED 0x20 /* protocol drop flag */
1.128 +#define INP_SOCKREF 0x40 /* strong socket reference */
1.129 +#define INP_CONN 0x80
1.130 + u_char inp_ip_ttl; /* time to live proto */
1.131 + u_char inp_ip_p; /* protocol proto */
1.132 + u_char inp_ip_minttl; /* minimum TTL or drop */
1.133 + uint32_t inp_ispare1; /* connection id / queue id */
1.134 + void *inp_pspare[2]; /* rtentry / general use */
1.135 +
1.136 + /* Local and foreign ports, local and foreign addr. */
1.137 + struct in_conninfo inp_inc;
1.138 +
1.139 + /* list for this PCB's local port */
1.140 + struct label *inp_label; /* MAC label */
1.141 + struct inpcbpolicy *inp_sp; /* for IPSEC */
1.142 +
1.143 + /* Protocol-dependent part; options. */
1.144 + struct {
1.145 + u_char inp4_ip_tos; /* type of service proto */
1.146 + struct mbuf *inp4_options; /* IP options */
1.147 + struct ip_moptions *inp4_moptions; /* IP multicast options */
1.148 + } inp_depend4;
1.149 +#define inp_fport inp_inc.inc_fport
1.150 +#define inp_lport inp_inc.inc_lport
1.151 +#define inp_faddr inp_inc.inc_faddr
1.152 +#define inp_laddr inp_inc.inc_laddr
1.153 +#define inp_ip_tos inp_depend4.inp4_ip_tos
1.154 +#define inp_options inp_depend4.inp4_options
1.155 +#define inp_moptions inp_depend4.inp4_moptions
1.156 + struct {
1.157 + /* IP options */
1.158 + struct mbuf *inp6_options;
1.159 + /* IP6 options for outgoing packets */
1.160 + struct ip6_pktopts *inp6_outputopts;
1.161 + /* IP multicast options */
1.162 +#if 0
1.163 + struct ip6_moptions *inp6_moptions;
1.164 +#endif
1.165 + /* ICMPv6 code type filter */
1.166 + struct icmp6_filter *inp6_icmp6filt;
1.167 + /* IPV6_CHECKSUM setsockopt */
1.168 + int inp6_cksum;
1.169 + short inp6_hops;
1.170 + } inp_depend6;
1.171 + LIST_ENTRY(inpcb) inp_portlist;
1.172 + struct inpcbport *inp_phd; /* head of this list */
1.173 +#define inp_zero_size offsetof(struct inpcb, inp_gencnt)
1.174 + struct mtx inp_mtx;
1.175 +
1.176 +#define in6p_faddr inp_inc.inc6_faddr
1.177 +#define in6p_laddr inp_inc.inc6_laddr
1.178 +#define in6p_hops inp_depend6.inp6_hops /* default hop limit */
1.179 +#define in6p_ip6_nxt inp_ip_p
1.180 +#define in6p_flowinfo inp_flow
1.181 +#define in6p_vflag inp_vflag
1.182 +#define in6p_options inp_depend6.inp6_options
1.183 +#define in6p_outputopts inp_depend6.inp6_outputopts
1.184 +#if 0
1.185 +#define in6p_moptions inp_depend6.inp6_moptions
1.186 +#endif
1.187 +#define in6p_icmp6filt inp_depend6.inp6_icmp6filt
1.188 +#define in6p_cksum inp_depend6.inp6_cksum
1.189 +#define in6p_flags inp_flags /* for KAME src sync over BSD*'s */
1.190 +#define in6p_socket inp_socket /* for KAME src sync over BSD*'s */
1.191 +#define in6p_lport inp_lport /* for KAME src sync over BSD*'s */
1.192 +#define in6p_fport inp_fport /* for KAME src sync over BSD*'s */
1.193 +#define in6p_ppcb inp_ppcb /* for KAME src sync over BSD*'s */
1.194 +};
1.195 +/*
1.196 + * The range of the generation count, as used in this implementation, is 9e19.
1.197 + * We would have to create 300 billion connections per second for this number
1.198 + * to roll over in a year. This seems sufficiently unlikely that we simply
1.199 + * don't concern ourselves with that possibility.
1.200 + */
1.201 +
1.202 +struct inpcbport {
1.203 + LIST_ENTRY(inpcbport) phd_hash;
1.204 + struct inpcbhead phd_pcblist;
1.205 + u_short phd_port;
1.206 +};
1.207 +
1.208 +/*
1.209 + * Global data structure for each high-level protocol (UDP, TCP, ...) in both
1.210 + * IPv4 and IPv6. Holds inpcb lists and information for managing them.
1.211 + */
1.212 +struct inpcbinfo {
1.213 + /*
1.214 + * Global list of inpcbs on the protocol.
1.215 + */
1.216 + struct inpcbhead *ipi_listhead;
1.217 + u_int ipi_count;
1.218 +
1.219 + /*
1.220 + * Global hash of inpcbs, hashed by local and foreign addresses and
1.221 + * port numbers.
1.222 + */
1.223 + struct inpcbhead *ipi_hashbase;
1.224 + u_long ipi_hashmask;
1.225 +
1.226 + /*
1.227 + * Global hash of inpcbs, hashed by only local port number.
1.228 + */
1.229 + struct inpcbporthead *ipi_porthashbase;
1.230 + u_long ipi_porthashmask;
1.231 +
1.232 + /*
1.233 + * Fields associated with port lookup and allocation.
1.234 + */
1.235 + u_short ipi_lastport;
1.236 + u_short ipi_lastlow;
1.237 + u_short ipi_lasthi;
1.238 +
1.239 + /*
1.240 + * UMA zone from which inpcbs are allocated for this protocol.
1.241 + */
1.242 + struct uma_zone *ipi_zone;
1.243 +
1.244 + /*
1.245 + * Generation count--incremented each time a connection is allocated
1.246 + * or freed.
1.247 + */
1.248 + struct mtx ipi_mtx;
1.249 +
1.250 + /*
1.251 + * vimage 1
1.252 + * general use 1
1.253 + */
1.254 + void *ipi_pspare[2];
1.255 +};
1.256 +
1.257 +#define INP_LOCK_INIT(inp, d, t) \
1.258 + mtx_init(&(inp)->inp_mtx, (d), (t), MTX_DEF | MTX_RECURSE | MTX_DUPOK)
1.259 +#define INP_LOCK_DESTROY(inp) mtx_destroy(&(inp)->inp_mtx)
1.260 +#define INP_LOCK(inp) mtx_lock(&(inp)->inp_mtx)
1.261 +#define INP_UNLOCK(inp) mtx_unlock(&(inp)->inp_mtx)
1.262 +#define INP_LOCK_ASSERT(inp) mtx_assert(&(inp)->inp_mtx, MA_OWNED)
1.263 +#define INP_UNLOCK_ASSERT(inp) mtx_assert(&(inp)->inp_mtx, MA_NOTOWNED)
1.264 +
1.265 +#define INP_INFO_LOCK_INIT(ipi, d) \
1.266 + mtx_init(&(ipi)->ipi_mtx, (d), NULL, MTX_DEF | MTX_RECURSE)
1.267 +#define INP_INFO_LOCK_DESTROY(ipi) mtx_destroy(&(ipi)->ipi_mtx)
1.268 +#define INP_INFO_RLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
1.269 +#define INP_INFO_WLOCK(ipi) mtx_lock(&(ipi)->ipi_mtx)
1.270 +#define INP_INFO_RUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
1.271 +#define INP_INFO_WUNLOCK(ipi) mtx_unlock(&(ipi)->ipi_mtx)
1.272 +#define INP_INFO_RLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_OWNED)
1.273 +#define INP_INFO_WLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_OWNED)
1.274 +#define INP_INFO_UNLOCK_ASSERT(ipi) mtx_assert(&(ipi)->ipi_mtx, MA_NOTOWNED)
1.275 +
1.276 +#define INP_PCBHASH(faddr, lport, fport, mask) \
1.277 + (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
1.278 +#define INP_PCBPORTHASH(lport, mask) \
1.279 + (ntohs((lport)) & (mask))
1.280 +
1.281 +/* flags in inp_flags: */
1.282 +#define INP_RECVOPTS 0x01 /* receive incoming IP options */
1.283 +#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */
1.284 +#define INP_RECVDSTADDR 0x04 /* receive IP dst address */
1.285 +#define INP_HDRINCL 0x08 /* user supplies entire IP header */
1.286 +#define INP_HIGHPORT 0x10 /* user wants "high" port binding */
1.287 +#define INP_LOWPORT 0x20 /* user wants "low" port binding */
1.288 +#define INP_ANONPORT 0x40 /* port chosen for user */
1.289 +#define INP_RECVIF 0x80 /* receive incoming interface */
1.290 +#define INP_MTUDISC 0x100 /* user can do MTU discovery */
1.291 +#define INP_FAITH 0x200 /* accept FAITH'ed connections */
1.292 +#define INP_RECVTTL 0x400 /* receive incoming IP TTL */
1.293 +#define INP_DONTFRAG 0x800 /* don't fragment packet */
1.294 +
1.295 +#define IN6P_IPV6_V6ONLY 0x008000 /* restrict AF_INET6 socket for v6 */
1.296 +
1.297 +#define IN6P_PKTINFO 0x010000 /* receive IP6 dst and I/F */
1.298 +#define IN6P_HOPLIMIT 0x020000 /* receive hoplimit */
1.299 +#define IN6P_HOPOPTS 0x040000 /* receive hop-by-hop options */
1.300 +#define IN6P_DSTOPTS 0x080000 /* receive dst options after rthdr */
1.301 +#define IN6P_RTHDR 0x100000 /* receive routing header */
1.302 +#define IN6P_RTHDRDSTOPTS 0x200000 /* receive dstoptions before rthdr */
1.303 +#define IN6P_TCLASS 0x400000 /* receive traffic class value */
1.304 +#define IN6P_AUTOFLOWLABEL 0x800000 /* attach flowlabel automatically */
1.305 +#define IN6P_RFC2292 0x40000000 /* used RFC2292 API on the socket */
1.306 +#define IN6P_MTU 0x80000000 /* receive path MTU */
1.307 +
1.308 +#define INP_CONTROLOPTS (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
1.309 + INP_RECVIF|INP_RECVTTL|\
1.310 + IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
1.311 + IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
1.312 + IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
1.313 + IN6P_MTU)
1.314 +#define INP_UNMAPPABLEOPTS (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
1.315 + IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
1.316 +
1.317 + /* for KAME src sync over BSD*'s */
1.318 +#define IN6P_HIGHPORT INP_HIGHPORT
1.319 +#define IN6P_LOWPORT INP_LOWPORT
1.320 +#define IN6P_ANONPORT INP_ANONPORT
1.321 +#define IN6P_RECVIF INP_RECVIF
1.322 +#define IN6P_MTUDISC INP_MTUDISC
1.323 +#define IN6P_FAITH INP_FAITH
1.324 +#define IN6P_CONTROLOPTS INP_CONTROLOPTS
1.325 + /*
1.326 + * socket AF version is {newer than,or include}
1.327 + * actual datagram AF version
1.328 + */
1.329 +
1.330 +#define INPLOOKUP_WILDCARD 1
1.331 +#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
1.332 +#define sotoin6pcb(so) sotoinpcb(so) /* for KAME src sync over BSD*'s */
1.333 +
1.334 +#define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
1.335 +
1.336 +#define INP_CHECK_SOCKAF(so, af) (INP_SOCKAF(so) == af)
1.337 +
1.338 +/* #ifdef _KERNEL */
1.339 +extern int ipport_reservedhigh;
1.340 +extern int ipport_reservedlow;
1.341 +extern int ipport_lowfirstauto;
1.342 +extern int ipport_lowlastauto;
1.343 +extern int ipport_firstauto;
1.344 +extern int ipport_lastauto;
1.345 +extern int ipport_hifirstauto;
1.346 +extern int ipport_hilastauto;
1.347 +extern struct callout ipport_tick_callout;
1.348 +
1.349 +void in_pcbpurgeif0(struct inpcbinfo *, struct ifnet *);
1.350 +int in_pcballoc(struct socket *, struct inpcbinfo *);
1.351 +int in_pcbbind(struct inpcb *, struct sockaddr *, struct ucred *);
1.352 +int in_pcbconnect(struct inpcb *, struct sockaddr *, struct ucred *);
1.353 +void in_pcbdetach(struct inpcb *);
1.354 +void in_pcbdisconnect(struct inpcb *);
1.355 +void in_pcbdrop(struct inpcb *);
1.356 +void in_pcbfree(struct inpcb *);
1.357 +int in_pcbinshash(struct inpcb *);
1.358 +struct inpcb *
1.359 + in_pcblookup_local(struct inpcbinfo *,
1.360 + struct in_addr, u_int, int);
1.361 +struct inpcb *
1.362 + in_pcblookup_hash(struct inpcbinfo *, struct in_addr, u_int,
1.363 + struct in_addr, u_int, int, struct ifnet *);
1.364 +void in_pcbnotifyall(struct inpcbinfo *pcbinfo, struct in_addr,
1.365 + int, struct inpcb *(*)(struct inpcb *, int));
1.366 +void in_pcbrehash(struct inpcb *);
1.367 +void in_pcbsetsolabel(struct socket *so);
1.368 +int in_getpeeraddr(struct socket *so, struct sockaddr **nam);
1.369 +int in_getsockaddr(struct socket *so, struct sockaddr **nam);
1.370 +void in_pcbsosetlabel(struct socket *so);
1.371 +void in_pcbremlists(struct inpcb *inp);
1.372 +void ipport_tick(void *xtp);
1.373 +
1.374 +/*
1.375 + * Debugging routines compiled in when DDB is present.
1.376 + */
1.377 +void db_print_inpcb(struct inpcb *inp, const char *name, int indent);
1.378 +
1.379 +/* #endif _KERNEL */
1.380 +
1.381 +#endif /* !_NETINET_IN_PCB_H_ */
