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, 164 insertions, 0 deletions

diff --git a/rtems/freebsd/netinet6/mld6_var.h b/rtems/freebsd/netinet6/mld6_var.h
new file mode 100644
index 00000000..40d70e51
--- /dev/null
+++ b/rtems/freebsd/netinet6/mld6_var.h
@@ -0,0 +1,164 @@
+/*-
+ * Copyright (c) 2009 Bruce Simpson.
+ *
+ * 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. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+#ifndef _NETINET6_MLD6_VAR_HH_
+#define _NETINET6_MLD6_VAR_HH_
+
+/*
+ * Multicast Listener Discovery (MLD)
+ * implementation-specific definitions.
+ */
+
+#ifdef _KERNEL
+
+/*
+ * Per-link MLD state.
+ */
+struct mld_ifinfo {
+	LIST_ENTRY(mld_ifinfo) mli_link;
+	struct ifnet *mli_ifp;	/* interface this instance belongs to */
+	uint32_t mli_version;	/* MLDv1 Host Compatibility Mode */
+	uint32_t mli_v1_timer;	/* MLDv1 Querier Present timer (s) */
+	uint32_t mli_v2_timer;	/* MLDv2 General Query (interface) timer (s)*/
+	uint32_t mli_flags;	/* MLD per-interface flags */
+	uint32_t mli_rv;	/* MLDv2 Robustness Variable */
+	uint32_t mli_qi;	/* MLDv2 Query Interval (s) */
+	uint32_t mli_qri;	/* MLDv2 Query Response Interval (s) */
+	uint32_t mli_uri;	/* MLDv2 Unsolicited Report Interval (s) */
+	SLIST_HEAD(,in6_multi)	mli_relinmhead; /* released groups */
+	struct ifqueue	 mli_gq;	/* queue of general query responses */
+};
+#define MLIF_SILENT	0x00000001	/* Do not use MLD on this ifp */
+#define MLIF_USEALLOW	0x00000002	/* Use ALLOW/BLOCK for joins/leaves */
+
+#define MLD_RANDOM_DELAY(X)		(arc4random() % (X) + 1)
+#define MLD_MAX_STATE_CHANGES		24 /* Max pending changes per group */
+
+/*
+ * MLD per-group states.
+ */
+#define MLD_NOT_MEMBER			0 /* Can garbage collect group */
+#define MLD_SILENT_MEMBER		1 /* Do not perform MLD for group */
+#define MLD_REPORTING_MEMBER		2 /* MLDv1 we are reporter */
+#define MLD_IDLE_MEMBER			3 /* MLDv1 we reported last */
+#define MLD_LAZY_MEMBER			4 /* MLDv1 other member reporting */
+#define MLD_SLEEPING_MEMBER		5 /* MLDv1 start query response */
+#define MLD_AWAKENING_MEMBER		6 /* MLDv1 group timer will start */
+#define MLD_G_QUERY_PENDING_MEMBER	7 /* MLDv2 group query pending */
+#define MLD_SG_QUERY_PENDING_MEMBER	8 /* MLDv2 source query pending */
+#define MLD_LEAVING_MEMBER		9 /* MLDv2 dying gasp (pending last */
+					  /* retransmission of INCLUDE {}) */
+
+/*
+ * MLD version tag.
+ */
+#define MLD_VERSION_NONE		0 /* Invalid */
+#define MLD_VERSION_1			1
+#define MLD_VERSION_2			2 /* Default */
+
+/*
+ * MLDv2 protocol control variables.
+ */
+#define MLD_RV_INIT		2	/* Robustness Variable */
+#define MLD_RV_MIN		1
+#define MLD_RV_MAX		7
+
+#define MLD_QI_INIT		125	/* Query Interval (s) */
+#define MLD_QI_MIN		1
+#define MLD_QI_MAX		255
+
+#define MLD_QRI_INIT		10	/* Query Response Interval (s) */
+#define MLD_QRI_MIN		1
+#define MLD_QRI_MAX		255
+
+#define MLD_URI_INIT		3	/* Unsolicited Report Interval (s) */
+#define MLD_URI_MIN		0
+#define MLD_URI_MAX		10
+
+#define MLD_MAX_GS_SOURCES		256 /* # of sources in rx GS query */
+#define MLD_MAX_G_GS_PACKETS		8 /* # of packets to answer G/GS */
+#define MLD_MAX_STATE_CHANGE_PACKETS	8 /* # of packets per state change */
+#define MLD_MAX_RESPONSE_PACKETS	16 /* # of packets for general query */
+#define MLD_MAX_RESPONSE_BURST		4 /* # of responses to send at once */
+#define MLD_RESPONSE_BURST_INTERVAL	(PR_FASTHZ / 2)	/* 500ms */
+
+/*
+ * MLD-specific mbuf flags.
+ */
+#define M_MLDV1		M_PROTO1	/* Packet is MLDv1 */
+#define M_GROUPREC	M_PROTO3	/* mbuf chain is a group record */
+
+/*
+ * Leading space for MLDv2 reports inside MTU.
+ *
+ * NOTE: This differs from IGMPv3 significantly. KAME IPv6 requires
+ * that a fully formed mbuf chain *without* the Router Alert option
+ * is passed to ip6_output(), however we must account for it in the
+ * MTU if we need to split an MLDv2 report into several packets.
+ *
+ * We now put the MLDv2 report header in the initial mbuf containing
+ * the IPv6 header.
+ */
+#define	MLD_MTUSPACE	(sizeof(struct ip6_hdr) + sizeof(struct mld_raopt) + \
+			 sizeof(struct icmp6_hdr))
+
+/*
+ * Subsystem lock macros.
+ * The MLD lock is only taken with MLD. Currently it is system-wide.
+ * VIMAGE: The lock could be pushed to per-VIMAGE granularity in future.
+ */
+#define	MLD_LOCK_INIT()	mtx_init(&mld_mtx, "mld_mtx", NULL, MTX_DEF)
+#define	MLD_LOCK_DESTROY()	mtx_destroy(&mld_mtx)
+#define	MLD_LOCK()		mtx_lock(&mld_mtx)
+#define	MLD_LOCK_ASSERT()	mtx_assert(&mld_mtx, MA_OWNED)
+#define	MLD_UNLOCK()		mtx_unlock(&mld_mtx)
+#define	MLD_UNLOCK_ASSERT()	mtx_assert(&mld_mtx, MA_NOTOWNED)
+
+/*
+ * Per-link MLD context.
+ */
+#define MLD_IFINFO(ifp) \
+	(((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->mld_ifinfo)
+
+int	mld_change_state(struct in6_multi *, const int);
+struct mld_ifinfo *
+	mld_domifattach(struct ifnet *);
+void	mld_domifdetach(struct ifnet *);
+void	mld_fasttimo(void);
+void	mld_ifdetach(struct ifnet *);
+int	mld_input(struct mbuf *, int, int);
+void	mld_slowtimo(void);
+
+#ifdef SYSCTL_DECL
+SYSCTL_DECL(_net_inet6_mld);
+#endif
+
+#endif /* _KERNEL */
+
+#endif /* _NETINET6_MLD6_VAR_HH_ */