Squashed 'third_party/rawrtc/usrsctp/' content from commit bd1a92db3
Change-Id: If227cd6edd3243ac26044056b7427ae5bca71ef8
git-subtree-dir: third_party/rawrtc/usrsctp
git-subtree-split: bd1a92db338ba1e57453637959a127032bb566ff
diff --git a/usrsctplib/user_inpcb.h b/usrsctplib/user_inpcb.h
new file mode 100755
index 0000000..c557cd0
--- /dev/null
+++ b/usrsctplib/user_inpcb.h
@@ -0,0 +1,378 @@
+/*-
+ * 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> */
+
+#define in6pcb inpcb /* for KAME src sync over BSD*'s */
+#define in6p_sp inp_sp /* for KAME src sync over BSD*'s */
+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 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 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 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_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_ */