+/*
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+/* $FreeBSD: src/sys/netinet6/mld6_var.h,v 1.1.2.1 2000/07/15 07:14:36 kris Exp $ */
+/* $KAME: mld6_var.h,v 1.4 2000/03/25 07:23:54 sumikawa Exp $ */
+
/*
* Copyright (C) 1998 WIDE Project.
* All rights reserved.
#ifndef _NETINET6_MLD6_VAR_H_
#define _NETINET6_MLD6_VAR_H_
+#include <sys/appleapiopts.h>
+
+/*
+ * Multicast Listener Discovery (MLD)
+ * implementation-specific definitions.
+ */
+
+#ifdef PRIVATE
+/*
+ * Per-link MLD state.
+ */
+#ifndef XNU_KERNEL_PRIVATE
+struct mld_ifinfo {
+#else
+struct mld_ifinfo_u {
+#endif /* XNU_KERNEL_PRIVATE */
+ uint32_t mli_ifindex; /* 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) */
+ uint32_t _pad;
+};
+
+#define MLIF_SILENT 0x00000001 /* Do not use MLD on this ifp */
+#define MLIF_USEALLOW 0x00000002 /* Use ALLOW/BLOCK for joins/leaves */
-#if KERNEL
+/*
+ * MLD version tag.
+ */
+#define MLD_VERSION_NONE 0 /* Invalid */
+#define MLD_VERSION_1 1
+#define MLD_VERSION_2 2 /* Default */
+#endif /* PRIVATE */
+
+#ifdef BSD_KERNEL_PRIVATE
+#include <sys/syslog.h>
-#define MLD6_RANDOM_DELAY(X) (random() % (X) + 1)
+#define MLD_DEBUG 1
+#ifdef MLD_DEBUG
+extern int mld_debug;
+#define MLD_PRINTF(x) do { if (mld_debug) printf x; } while (0)
+#else
+#define MLD_PRINTF(x)
+#endif
+#define MLD_RANDOM_DELAY(X) (RandomULong() % (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 {}) */
/*
- * States for MLD stop-listening processing
+ * MLDv2 protocol control variables.
*/
-#define MLD6_OTHERLISTENER 0
-#define MLD6_IREPORTEDLAST 1
+#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 1 /* 1 second */
+
+/*
+ * 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))
+
+struct mld_ifinfo {
+ decl_lck_mtx_data(, mli_lock);
+ uint32_t mli_refcnt; /* reference count */
+ uint32_t mli_debug; /* see ifa_debug flags */
+ 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 */
+ struct ifqueue mli_v1q; /* MLDv1 message queue */
+};
+
+#define MLI_LOCK_ASSERT_HELD(_mli) \
+ lck_mtx_assert(&(_mli)->mli_lock, LCK_MTX_ASSERT_OWNED)
+
+#define MLI_LOCK_ASSERT_NOTHELD(_mli) \
+ lck_mtx_assert(&(_mli)->mli_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define MLI_LOCK(_mli) \
+ lck_mtx_lock(&(_mli)->mli_lock)
+
+#define MLI_LOCK_SPIN(_mli) \
+ lck_mtx_lock_spin(&(_mli)->mli_lock)
+
+#define MLI_CONVERT_LOCK(_mli) do { \
+ MLI_LOCK_ASSERT_HELD(_mli); \
+ lck_mtx_convert_spin(&(_mli)->mli_lock); \
+} while (0)
+
+#define MLI_UNLOCK(_mli) \
+ lck_mtx_unlock(&(_mli)->mli_lock)
+
+#define MLI_ADDREF(_mli) \
+ mli_addref(_mli, 0)
+
+#define MLI_ADDREF_LOCKED(_mli) \
+ mli_addref(_mli, 1)
+
+#define MLI_REMREF(_mli) \
+ mli_remref(_mli)
+
+/*
+ * Per-link MLD context.
+ */
+#define MLD_IFINFO(ifp) ((ifp)->if_mli)
+
+/*
+ * MLD timer schedule parameters
+ */
+struct mld_tparams {
+ int qpt; /* querier_present_timers_running6 */
+ int it; /* interface_timers_running6 */
+ int cst; /* current_state_timers_running6 */
+ int sct; /* state_change_timers_running6 */
+};
+
+extern int mld_change_state(struct in6_multi *, struct mld_tparams *,
+ const int);
+extern struct mld_ifinfo *mld_domifattach(struct ifnet *, int);
+extern void mld_domifreattach(struct mld_ifinfo *);
+extern void mld_domifdetach(struct ifnet *);
+extern void mld_fasttimo(void);
+extern void mld_ifdetach(struct ifnet *);
+extern int mld_input(struct mbuf *, int, int);
+extern void mld_init(void);
+extern void mld_set_timeout(struct mld_tparams *);
+extern void mli_addref(struct mld_ifinfo *, int);
+extern void mli_remref(struct mld_ifinfo *);
+__private_extern__ void mld6_initsilent(struct ifnet *, struct mld_ifinfo *);
-void mld6_init __P((void));
-void mld6_input __P((struct mbuf *, int));
-void mld6_start_listening __P((struct in6_multi *));
-void mld6_stop_listening __P((struct in6_multi *));
-void mld6_fasttimeo __P((void));
-#endif /* KERNEL */
+#ifdef SYSCTL_DECL
+SYSCTL_DECL(_net_inet6_mld);
+#endif
+#endif /* BSD_KERNEL_PRIVATE */
#endif /* _NETINET6_MLD6_VAR_H_ */
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