| /*-a |
| * Copyright (c) 1988 Stephen Deering. |
| * Copyright (c) 1992, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * This code is derived from software contributed to Berkeley by |
| * Stephen Deering of Stanford University. |
| * |
| * 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. |
| * |
| * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93 |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _BSD_NETINET_IGMP_VAR_H_ |
| #define _BSD_NETINET_IGMP_VAR_H_ |
| |
| /* |
| * Internet Group Management Protocol (IGMP), |
| * implementation-specific definitions. |
| * |
| * Written by Steve Deering, Stanford, May 1988. |
| * |
| * MULTICAST Revision: 3.5.1.3 |
| */ |
| |
| #ifndef BURN_BRIDGES |
| /* |
| * Pre-IGMPV3 igmpstat structure. |
| */ |
| struct oigmpstat { |
| u_int igps_rcv_total; /* total IGMP messages received */ |
| u_int igps_rcv_tooshort; /* received with too few bytes */ |
| u_int igps_rcv_badsum; /* received with bad checksum */ |
| u_int igps_rcv_queries; /* received membership queries */ |
| u_int igps_rcv_badqueries; /* received invalid queries */ |
| u_int igps_rcv_reports; /* received membership reports */ |
| u_int igps_rcv_badreports; /* received invalid reports */ |
| u_int igps_rcv_ourreports; /* received reports for our groups */ |
| u_int igps_snd_reports; /* sent membership reports */ |
| u_int igps_rcv_toolong; /* received with too many bytes */ |
| }; |
| #endif |
| |
| /* |
| * IGMPv3 protocol statistics. |
| */ |
| struct igmpstat { |
| /* |
| * Structure header (to insulate ABI changes). |
| */ |
| uint32_t igps_version; /* version of this structure */ |
| uint32_t igps_len; /* length of this structure */ |
| /* |
| * Message statistics. |
| */ |
| uint64_t igps_rcv_total; /* total IGMP messages received */ |
| uint64_t igps_rcv_tooshort; /* received with too few bytes */ |
| uint64_t igps_rcv_badttl; /* received with ttl other than 1 */ |
| uint64_t igps_rcv_badsum; /* received with bad checksum */ |
| /* |
| * Query statistics. |
| */ |
| uint64_t igps_rcv_v1v2_queries; /* received IGMPv1/IGMPv2 queries */ |
| uint64_t igps_rcv_v3_queries; /* received IGMPv3 queries */ |
| uint64_t igps_rcv_badqueries; /* received invalid queries */ |
| uint64_t igps_rcv_gen_queries; /* received general queries */ |
| uint64_t igps_rcv_group_queries;/* received group queries */ |
| uint64_t igps_rcv_gsr_queries; /* received group-source queries */ |
| uint64_t igps_drop_gsr_queries; /* dropped group-source queries */ |
| /* |
| * Report statistics. |
| */ |
| uint64_t igps_rcv_reports; /* received membership reports */ |
| uint64_t igps_rcv_badreports; /* received invalid reports */ |
| uint64_t igps_rcv_ourreports; /* received reports for our groups */ |
| uint64_t igps_rcv_nora; /* received w/o Router Alert option */ |
| uint64_t igps_snd_reports; /* sent membership reports */ |
| /* |
| * Padding for future additions. |
| */ |
| uint64_t __igps_pad[4]; |
| }; |
| #define IGPS_VERSION_3 3 /* as of FreeBSD 8.x */ |
| #define IGPS_VERSION3_LEN 168 |
| |
| #ifdef _FREEBSD_KERNEL |
| #define IGMPSTAT_ADD(name, val) V_igmpstat.name += (val) |
| #define IGMPSTAT_INC(name) IGMPSTAT_ADD(name, 1) |
| #endif |
| |
| #ifdef CTASSERT |
| CTASSERT(sizeof(struct igmpstat) == 168); |
| #endif |
| |
| #ifdef _FREEBSD_KERNEL |
| #define IGMP_RANDOM_DELAY(X) (random() % (X) + 1) |
| |
| #define IGMP_MAX_STATE_CHANGES 24 /* Max pending changes per group */ |
| |
| /* |
| * IGMP per-group states. |
| */ |
| #define IGMP_NOT_MEMBER 0 /* Can garbage collect in_multi */ |
| #define IGMP_SILENT_MEMBER 1 /* Do not perform IGMP for group */ |
| #define IGMP_REPORTING_MEMBER 2 /* IGMPv1/2/3 we are reporter */ |
| #define IGMP_IDLE_MEMBER 3 /* IGMPv1/2 we reported last */ |
| #define IGMP_LAZY_MEMBER 4 /* IGMPv1/2 other member reporting */ |
| #define IGMP_SLEEPING_MEMBER 5 /* IGMPv1/2 start query response */ |
| #define IGMP_AWAKENING_MEMBER 6 /* IGMPv1/2 group timer will start */ |
| #define IGMP_G_QUERY_PENDING_MEMBER 7 /* IGMPv3 group query pending */ |
| #define IGMP_SG_QUERY_PENDING_MEMBER 8 /* IGMPv3 source query pending */ |
| #define IGMP_LEAVING_MEMBER 9 /* IGMPv3 dying gasp (pending last */ |
| /* retransmission of INCLUDE {}) */ |
| |
| /* |
| * IGMP version tag. |
| */ |
| #define IGMP_VERSION_NONE 0 /* Invalid */ |
| #define IGMP_VERSION_1 1 |
| #define IGMP_VERSION_2 2 |
| #define IGMP_VERSION_3 3 /* Default */ |
| |
| /* |
| * IGMPv3 protocol control variables. |
| */ |
| #define IGMP_RV_INIT 2 /* Robustness Variable */ |
| #define IGMP_RV_MIN 1 |
| #define IGMP_RV_MAX 7 |
| |
| #define IGMP_QI_INIT 125 /* Query Interval (s) */ |
| #define IGMP_QI_MIN 1 |
| #define IGMP_QI_MAX 255 |
| |
| #define IGMP_QRI_INIT 10 /* Query Response Interval (s) */ |
| #define IGMP_QRI_MIN 1 |
| #define IGMP_QRI_MAX 255 |
| |
| #define IGMP_URI_INIT 3 /* Unsolicited Report Interval (s) */ |
| #define IGMP_URI_MIN 0 |
| #define IGMP_URI_MAX 10 |
| |
| #define IGMP_MAX_G_GS_PACKETS 8 /* # of packets to answer G/GS */ |
| #define IGMP_MAX_STATE_CHANGE_PACKETS 8 /* # of packets per state change */ |
| #define IGMP_MAX_RESPONSE_PACKETS 16 /* # of packets for general query */ |
| #define IGMP_MAX_RESPONSE_BURST 4 /* # of responses to send at once */ |
| #define IGMP_RESPONSE_BURST_INTERVAL (PR_FASTHZ / 2) /* 500ms */ |
| |
| /* |
| * IGMP-specific mbuf flags. |
| */ |
| #define M_IGMPV2 M_PROTO1 /* Packet is IGMPv2 */ |
| #define M_IGMPV3_HDR M_PROTO2 /* Packet has IGMPv3 headers */ |
| #define M_GROUPREC M_PROTO3 /* mbuf chain is a group record */ |
| #define M_IGMP_LOOP M_PROTO4 /* transmit on loif, not real ifp */ |
| |
| /* |
| * Default amount of leading space for IGMPv3 to allocate at the |
| * beginning of its mbuf packet chains, to avoid fragmentation and |
| * unnecessary allocation of leading mbufs. |
| */ |
| #define RAOPT_LEN 4 /* Length of IP Router Alert option */ |
| #define IGMP_LEADINGSPACE \ |
| (sizeof(struct ip) + RAOPT_LEN + sizeof(struct igmp_report)) |
| |
| /* |
| * Subsystem lock macros. |
| * The IGMP lock is only taken with IGMP. Currently it is system-wide. |
| * VIMAGE: The lock could be pushed to per-VIMAGE granularity in future. |
| */ |
| #define IGMP_LOCK_INIT() mtx_init(&igmp_mtx, "igmp_mtx", NULL, MTX_DEF) |
| #define IGMP_LOCK_DESTROY() mtx_destroy(&igmp_mtx) |
| #define IGMP_LOCK() mtx_lock(&igmp_mtx) |
| #define IGMP_LOCK_ASSERT() mtx_assert(&igmp_mtx, MA_OWNED) |
| #define IGMP_UNLOCK() mtx_unlock(&igmp_mtx) |
| #define IGMP_UNLOCK_ASSERT() mtx_assert(&igmp_mtx, MA_NOTOWNED) |
| |
| struct igmp_ifinfo; |
| |
| int igmp_change_state(struct in_multi *); |
| void igmp_fasttimo(void); |
| struct igmp_ifinfo * |
| igmp_domifattach(struct ifnet *); |
| void igmp_domifdetach(struct ifnet *); |
| void igmp_ifdetach(struct ifnet *); |
| void igmp_input(struct mbuf *, int); |
| void igmp_slowtimo(void); |
| |
| //SYSCTL_DECL(_net_inet_igmp); |
| |
| #endif /* _FREEBSD_KERNEL */ |
| |
| /* |
| * Names for IGMP sysctl objects |
| */ |
| #define IGMPCTL_STATS 1 /* statistics (read-only) */ |
| #define IGMPCTL_MAXID 2 |
| |
| #define IGMPCTL_NAMES { \ |
| { 0, 0 }, \ |
| { "stats", CTLTYPE_STRUCT } \ |
| } |
| #endif |