Initial import

Code is based on FreeBSD 8.2 with USB support from Sebastian Huber
and Thomas Doerfler. Initial TCP/IP stack work is from Kevel Kirspel.

1 files changed, 455 insertions, 0 deletions

diff --git a/rtems/freebsd/netinet6/nd6.h b/rtems/freebsd/netinet6/nd6.h
new file mode 100644
index 00000000..58677ff5
--- /dev/null
+++ b/rtems/freebsd/netinet6/nd6.h
@@ -0,0 +1,455 @@
+/*-
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * 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 project 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 PROJECT 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 PROJECT 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.
+ *
+ *	$KAME: nd6.h,v 1.76 2001/12/18 02:10:31 itojun Exp $
+ * $FreeBSD$
+ */
+
+#ifndef _NETINET6_ND6_HH_
+#define _NETINET6_ND6_HH_
+
+/* see net/route.h, or net/if_inarp.h */
+#ifndef RTF_ANNOUNCE
+#define RTF_ANNOUNCE	RTF_PROTO2
+#endif
+
+#include <rtems/freebsd/sys/queue.h>
+#include <rtems/freebsd/sys/callout.h>
+
+struct llentry;
+
+#define ND6_LLINFO_NOSTATE	-2
+/*
+ * We don't need the WAITDELETE state any more, but we keep the definition
+ * in a comment line instead of removing it. This is necessary to avoid
+ * unintentionally reusing the value for another purpose, which might
+ * affect backward compatibility with old applications.
+ * (20000711 jinmei@kame.net)
+ */
+/* #define ND6_LLINFO_WAITDELETE	-1 */
+#define ND6_LLINFO_INCOMPLETE	0
+#define ND6_LLINFO_REACHABLE	1
+#define ND6_LLINFO_STALE	2
+#define ND6_LLINFO_DELAY	3
+#define ND6_LLINFO_PROBE	4
+
+#define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
+#define ND6_LLINFO_PERMANENT(n) (((n)->la_expire == 0) && ((n)->ln_state > ND6_LLINFO_INCOMPLETE))
+
+struct nd_ifinfo {
+	u_int32_t linkmtu;		/* LinkMTU */
+	u_int32_t maxmtu;		/* Upper bound of LinkMTU */
+	u_int32_t basereachable;	/* BaseReachableTime */
+	u_int32_t reachable;		/* Reachable Time */
+	u_int32_t retrans;		/* Retrans Timer */
+	u_int32_t flags;		/* Flags */
+	int recalctm;			/* BaseReacable re-calculation timer */
+	u_int8_t chlim;			/* CurHopLimit */
+	u_int8_t initialized; /* Flag to see the entry is initialized */
+	/* the following 3 members are for privacy extension for addrconf */
+	u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
+	u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
+	u_int8_t randomid[8];	/* current random ID */
+};
+
+#define ND6_IFF_PERFORMNUD	0x1
+#define ND6_IFF_ACCEPT_RTADV	0x2
+#define ND6_IFF_PREFER_SOURCE	0x4 /* XXX: not related to ND. */
+#define ND6_IFF_IFDISABLED	0x8 /* IPv6 operation is disabled due to
+				     * DAD failure.  (XXX: not ND-specific)
+				     */
+#define ND6_IFF_DONT_SET_IFROUTE	0x10
+
+#define	ND6_CREATE		LLE_CREATE
+#define	ND6_EXCLUSIVE		LLE_EXCLUSIVE
+
+#ifdef _KERNEL
+#define ND_IFINFO(ifp) \
+	(((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->nd_ifinfo)
+#define IN6_LINKMTU(ifp) \
+	((ND_IFINFO(ifp)->linkmtu && ND_IFINFO(ifp)->linkmtu < (ifp)->if_mtu) \
+	    ? ND_IFINFO(ifp)->linkmtu \
+	    : ((ND_IFINFO(ifp)->maxmtu && ND_IFINFO(ifp)->maxmtu < (ifp)->if_mtu) \
+		? ND_IFINFO(ifp)->maxmtu : (ifp)->if_mtu))
+#endif
+
+struct in6_nbrinfo {
+	char ifname[IFNAMSIZ];	/* if name, e.g. "en0" */
+	struct in6_addr addr;	/* IPv6 address of the neighbor */
+	long	asked;		/* number of queries already sent for this addr */
+	int	isrouter;	/* if it acts as a router */
+	int	state;		/* reachability state */
+	int	expire;		/* lifetime for NDP state transition */
+};
+
+#define DRLSTSIZ 10
+#define PRLSTSIZ 10
+struct	in6_drlist {
+	char ifname[IFNAMSIZ];
+	struct {
+		struct	in6_addr rtaddr;
+		u_char	flags;
+		u_short	rtlifetime;
+		u_long	expire;
+		u_short if_index;
+	} defrouter[DRLSTSIZ];
+};
+
+struct	in6_defrouter {
+	struct	sockaddr_in6 rtaddr;
+	u_char	flags;
+	u_short	rtlifetime;
+	u_long	expire;
+	u_short if_index;
+};
+
+#ifdef _KERNEL
+struct	in6_oprlist {
+	char ifname[IFNAMSIZ];
+	struct {
+		struct	in6_addr prefix;
+		struct prf_ra raflags;
+		u_char	prefixlen;
+		u_char	origin;
+		u_long vltime;
+		u_long pltime;
+		u_long expire;
+		u_short if_index;
+		u_short advrtrs; /* number of advertisement routers */
+		struct	in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
+	} prefix[PRLSTSIZ];
+};
+#endif
+
+struct	in6_prlist {
+	char ifname[IFNAMSIZ];
+	struct {
+		struct	in6_addr prefix;
+		struct prf_ra raflags;
+		u_char	prefixlen;
+		u_char	origin;
+		u_int32_t vltime;
+		u_int32_t pltime;
+		time_t expire;
+		u_short if_index;
+		u_short advrtrs; /* number of advertisement routers */
+		struct	in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
+	} prefix[PRLSTSIZ];
+};
+
+struct in6_prefix {
+	struct	sockaddr_in6 prefix;
+	struct prf_ra raflags;
+	u_char	prefixlen;
+	u_char	origin;
+	u_int32_t vltime;
+	u_int32_t pltime;
+	time_t expire;
+	u_int32_t flags;
+	int refcnt;
+	u_short if_index;
+	u_short advrtrs; /* number of advertisement routers */
+	/* struct sockaddr_in6 advrtr[] */
+};
+
+#ifdef _KERNEL
+struct	in6_ondireq {
+	char ifname[IFNAMSIZ];
+	struct {
+		u_int32_t linkmtu;	/* LinkMTU */
+		u_int32_t maxmtu;	/* Upper bound of LinkMTU */
+		u_int32_t basereachable; /* BaseReachableTime */
+		u_int32_t reachable;	/* Reachable Time */
+		u_int32_t retrans;	/* Retrans Timer */
+		u_int32_t flags;	/* Flags */
+		int recalctm;		/* BaseReacable re-calculation timer */
+		u_int8_t chlim;		/* CurHopLimit */
+		u_int8_t receivedra;
+	} ndi;
+};
+#endif
+
+struct	in6_ndireq {
+	char ifname[IFNAMSIZ];
+	struct nd_ifinfo ndi;
+};
+
+struct	in6_ndifreq {
+	char ifname[IFNAMSIZ];
+	u_long ifindex;
+};
+
+/* Prefix status */
+#define NDPRF_ONLINK		0x1
+#define NDPRF_DETACHED		0x2
+
+/* protocol constants */
+#define MAX_RTR_SOLICITATION_DELAY	1	/* 1sec */
+#define RTR_SOLICITATION_INTERVAL	4	/* 4sec */
+#define MAX_RTR_SOLICITATIONS		3
+
+#define ND6_INFINITE_LIFETIME		0xffffffff
+
+#ifdef _KERNEL
+/* node constants */
+#define MAX_REACHABLE_TIME		3600000	/* msec */
+#define REACHABLE_TIME			30000	/* msec */
+#define RETRANS_TIMER			1000	/* msec */
+#define MIN_RANDOM_FACTOR		512	/* 1024 * 0.5 */
+#define MAX_RANDOM_FACTOR		1536	/* 1024 * 1.5 */
+#define DEF_TEMP_VALID_LIFETIME		604800	/* 1 week */
+#define DEF_TEMP_PREFERRED_LIFETIME	86400	/* 1 day */
+#define TEMPADDR_REGEN_ADVANCE		5	/* sec */
+#define MAX_TEMP_DESYNC_FACTOR		600	/* 10 min */
+#define ND_COMPUTE_RTIME(x) \
+		(((MIN_RANDOM_FACTOR * (x >> 10)) + (arc4random() & \
+		((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
+
+TAILQ_HEAD(nd_drhead, nd_defrouter);
+struct	nd_defrouter {
+	TAILQ_ENTRY(nd_defrouter) dr_entry;
+	struct	in6_addr rtaddr;
+	u_char	flags;		/* flags on RA message */
+	u_short	rtlifetime;
+	u_long	expire;
+	struct  ifnet *ifp;
+	int	installed;	/* is installed into kernel routing table */
+};
+
+struct nd_prefixctl {
+	struct ifnet *ndpr_ifp;
+
+	/* prefix */
+	struct sockaddr_in6 ndpr_prefix;
+	u_char	ndpr_plen;
+
+	u_int32_t ndpr_vltime;	/* advertised valid lifetime */
+	u_int32_t ndpr_pltime;	/* advertised preferred lifetime */
+
+	struct prf_ra ndpr_flags;
+};
+
+
+struct nd_prefix {
+	struct ifnet *ndpr_ifp;
+	LIST_ENTRY(nd_prefix) ndpr_entry;
+	struct sockaddr_in6 ndpr_prefix;	/* prefix */
+	struct in6_addr ndpr_mask; /* netmask derived from the prefix */
+
+	u_int32_t ndpr_vltime;	/* advertised valid lifetime */
+	u_int32_t ndpr_pltime;	/* advertised preferred lifetime */
+
+	time_t ndpr_expire;	/* expiration time of the prefix */
+	time_t ndpr_preferred;	/* preferred time of the prefix */
+	time_t ndpr_lastupdate; /* reception time of last advertisement */
+
+	struct prf_ra ndpr_flags;
+	u_int32_t ndpr_stateflags; /* actual state flags */
+	/* list of routers that advertise the prefix: */
+	LIST_HEAD(pr_rtrhead, nd_pfxrouter) ndpr_advrtrs;
+	u_char	ndpr_plen;
+	int	ndpr_refcnt;	/* reference couter from addresses */
+};
+
+#define ndpr_next		ndpr_entry.le_next
+
+#define ndpr_raf		ndpr_flags
+#define ndpr_raf_onlink		ndpr_flags.onlink
+#define ndpr_raf_auto		ndpr_flags.autonomous
+#define ndpr_raf_router		ndpr_flags.router
+
+/*
+ * Message format for use in obtaining information about prefixes
+ * from inet6 sysctl function
+ */
+struct inet6_ndpr_msghdr {
+	u_short	inpm_msglen;	/* to skip over non-understood messages */
+	u_char	inpm_version;	/* future binary compatibility */
+	u_char	inpm_type;	/* message type */
+	struct in6_addr inpm_prefix;
+	u_long	prm_vltim;
+	u_long	prm_pltime;
+	u_long	prm_expire;
+	u_long	prm_preferred;
+	struct in6_prflags prm_flags;
+	u_short	prm_index;	/* index for associated ifp */
+	u_char	prm_plen;	/* length of prefix in bits */
+};
+
+#define prm_raf_onlink		prm_flags.prf_ra.onlink
+#define prm_raf_auto		prm_flags.prf_ra.autonomous
+
+#define prm_statef_onlink	prm_flags.prf_state.onlink
+
+#define prm_rrf_decrvalid	prm_flags.prf_rr.decrvalid
+#define prm_rrf_decrprefd	prm_flags.prf_rr.decrprefd
+
+struct nd_pfxrouter {
+	LIST_ENTRY(nd_pfxrouter) pfr_entry;
+#define pfr_next pfr_entry.le_next
+	struct nd_defrouter *router;
+};
+
+LIST_HEAD(nd_prhead, nd_prefix);
+
+/* nd6.c */
+VNET_DECLARE(int, nd6_prune);
+VNET_DECLARE(int, nd6_delay);
+VNET_DECLARE(int, nd6_umaxtries);
+VNET_DECLARE(int, nd6_mmaxtries);
+VNET_DECLARE(int, nd6_useloopback);
+VNET_DECLARE(int, nd6_maxnudhint);
+VNET_DECLARE(int, nd6_gctimer);
+VNET_DECLARE(struct nd_drhead, nd_defrouter);
+VNET_DECLARE(struct nd_prhead, nd_prefix);
+VNET_DECLARE(int, nd6_debug);
+VNET_DECLARE(int, nd6_onlink_ns_rfc4861);
+#define	V_nd6_prune			VNET(nd6_prune)
+#define	V_nd6_delay			VNET(nd6_delay)
+#define	V_nd6_umaxtries			VNET(nd6_umaxtries)
+#define	V_nd6_mmaxtries			VNET(nd6_mmaxtries)
+#define	V_nd6_useloopback		VNET(nd6_useloopback)
+#define	V_nd6_maxnudhint		VNET(nd6_maxnudhint)
+#define	V_nd6_gctimer			VNET(nd6_gctimer)
+#define	V_nd_defrouter			VNET(nd_defrouter)
+#define	V_nd_prefix			VNET(nd_prefix)
+#define	V_nd6_debug			VNET(nd6_debug)
+#define	V_nd6_onlink_ns_rfc4861		VNET(nd6_onlink_ns_rfc4861)
+
+#define nd6log(x)	do { if (V_nd6_debug) log x; } while (/*CONSTCOND*/ 0)
+
+VNET_DECLARE(struct callout, nd6_timer_ch);
+#define	V_nd6_timer_ch			VNET(nd6_timer_ch)
+
+/* nd6_rtr.c */
+VNET_DECLARE(int, nd6_defifindex);
+VNET_DECLARE(int, ip6_desync_factor);	/* seconds */
+VNET_DECLARE(u_int32_t, ip6_temp_preferred_lifetime); /* seconds */
+VNET_DECLARE(u_int32_t, ip6_temp_valid_lifetime); /* seconds */
+VNET_DECLARE(int, ip6_temp_regen_advance); /* seconds */
+#define	V_nd6_defifindex		VNET(nd6_defifindex)
+#define	V_ip6_desync_factor		VNET(ip6_desync_factor)
+#define	V_ip6_temp_preferred_lifetime	VNET(ip6_temp_preferred_lifetime)
+#define	V_ip6_temp_valid_lifetime	VNET(ip6_temp_valid_lifetime)
+#define	V_ip6_temp_regen_advance	VNET(ip6_temp_regen_advance)
+
+union nd_opts {
+	struct nd_opt_hdr *nd_opt_array[8];	/* max = target address list */
+	struct {
+		struct nd_opt_hdr *zero;
+		struct nd_opt_hdr *src_lladdr;
+		struct nd_opt_hdr *tgt_lladdr;
+		struct nd_opt_prefix_info *pi_beg; /* multiple opts, start */
+		struct nd_opt_rd_hdr *rh;
+		struct nd_opt_mtu *mtu;
+		struct nd_opt_hdr *search;	/* multiple opts */
+		struct nd_opt_hdr *last;	/* multiple opts */
+		int done;
+		struct nd_opt_prefix_info *pi_end;/* multiple opts, end */
+	} nd_opt_each;
+};
+#define nd_opts_src_lladdr	nd_opt_each.src_lladdr
+#define nd_opts_tgt_lladdr	nd_opt_each.tgt_lladdr
+#define nd_opts_pi		nd_opt_each.pi_beg
+#define nd_opts_pi_end		nd_opt_each.pi_end
+#define nd_opts_rh		nd_opt_each.rh
+#define nd_opts_mtu		nd_opt_each.mtu
+#define nd_opts_search		nd_opt_each.search
+#define nd_opts_last		nd_opt_each.last
+#define nd_opts_done		nd_opt_each.done
+
+/* XXX: need nd6_var.h?? */
+/* nd6.c */
+void nd6_init __P((void));
+#ifdef VIMAGE
+void nd6_destroy __P((void));
+#endif
+struct nd_ifinfo *nd6_ifattach __P((struct ifnet *));
+void nd6_ifdetach __P((struct nd_ifinfo *));
+int nd6_is_addr_neighbor __P((struct sockaddr_in6 *, struct ifnet *));
+void nd6_option_init __P((void *, int, union nd_opts *));
+struct nd_opt_hdr *nd6_option __P((union nd_opts *));
+int nd6_options __P((union nd_opts *));
+struct	llentry *nd6_lookup __P((struct in6_addr *, int, struct ifnet *));
+void nd6_setmtu __P((struct ifnet *));
+void nd6_llinfo_settimer __P((struct llentry *, long));
+void nd6_llinfo_settimer_locked __P((struct llentry *, long));
+void nd6_timer __P((void *));
+void nd6_purge __P((struct ifnet *));
+void nd6_nud_hint __P((struct rtentry *, struct in6_addr *, int));
+int nd6_resolve __P((struct ifnet *, struct rtentry *, struct mbuf *,
+	struct sockaddr *, u_char *));
+int nd6_ioctl __P((u_long, caddr_t, struct ifnet *));
+struct llentry *nd6_cache_lladdr __P((struct ifnet *, struct in6_addr *,
+	char *, int, int, int));
+int nd6_output __P((struct ifnet *, struct ifnet *, struct mbuf *,
+	struct sockaddr_in6 *, struct rtentry *));
+int nd6_output_lle __P((struct ifnet *, struct ifnet *, struct mbuf *,
+	struct sockaddr_in6 *, struct rtentry *, struct llentry *,
+	struct mbuf **));
+int nd6_output_flush __P((struct ifnet *, struct ifnet *, struct mbuf *,
+	struct sockaddr_in6 *, struct route *));
+int nd6_need_cache __P((struct ifnet *));
+int nd6_storelladdr __P((struct ifnet *, struct mbuf *,
+	struct sockaddr *, u_char *, struct llentry **));
+
+/* nd6_nbr.c */
+void nd6_na_input __P((struct mbuf *, int, int));
+void nd6_na_output __P((struct ifnet *, const struct in6_addr *,
+	const struct in6_addr *, u_long, int, struct sockaddr *));
+void nd6_ns_input __P((struct mbuf *, int, int));
+void nd6_ns_output __P((struct ifnet *, const struct in6_addr *,
+	const struct in6_addr *, struct llentry *, int));
+caddr_t nd6_ifptomac __P((struct ifnet *));
+void nd6_dad_start __P((struct ifaddr *, int));
+void nd6_dad_stop __P((struct ifaddr *));
+void nd6_dad_duplicated __P((struct ifaddr *));
+
+/* nd6_rtr.c */
+void nd6_rs_input __P((struct mbuf *, int, int));
+void nd6_ra_input __P((struct mbuf *, int, int));
+void prelist_del __P((struct nd_prefix *));
+void defrouter_addreq __P((struct nd_defrouter *));
+void defrouter_reset __P((void));
+void defrouter_select __P((void));
+void defrtrlist_del __P((struct nd_defrouter *));
+void prelist_remove __P((struct nd_prefix *));
+int nd6_prelist_add __P((struct nd_prefixctl *, struct nd_defrouter *,
+	struct nd_prefix **));
+int nd6_prefix_onlink __P((struct nd_prefix *));
+int nd6_prefix_offlink __P((struct nd_prefix *));
+void pfxlist_onlink_check __P((void));
+struct nd_defrouter *defrouter_lookup __P((struct in6_addr *, struct ifnet *));
+struct nd_prefix *nd6_prefix_lookup __P((struct nd_prefixctl *));
+void rt6_flush __P((struct in6_addr *, struct ifnet *));
+int nd6_setdefaultiface __P((int));
+int in6_tmpifadd __P((const struct in6_ifaddr *, int, int));
+
+#endif /* _KERNEL */
+
+#endif /* _NETINET6_ND6_HH_ */