diff options
Diffstat (limited to 'sys/netinet/igmp_var.h')
| -rw-r--r-- | sys/netinet/igmp_var.h | 197 |
1 files changed, 129 insertions, 68 deletions
diff --git a/sys/netinet/igmp_var.h b/sys/netinet/igmp_var.h index 11c3769..9c9c7d4 100644 --- a/sys/netinet/igmp_var.h +++ b/sys/netinet/igmp_var.h @@ -46,105 +46,166 @@ * 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 { - 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 */ + /* + * 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 CTASSERT +CTASSERT(sizeof(struct igmpstat) == 168); +#endif #ifdef _KERNEL #define IGMP_RANDOM_DELAY(X) (random() % (X) + 1) -/* - * States for IGMPv2's leave processing - */ -#define IGMP_OTHERMEMBER 0 -#define IGMP_IREPORTEDLAST 1 +#define IGMP_MAX_STATE_CHANGES 24 /* Max pending changes per group */ /* - * State masks for IGMPv3 + * IGMP per-group states. */ -#define IGMP_V3_NONEXISTENT 0x01 -#define IGMP_V3_OTHERMEMBER 0x02 -#define IGMP_V3_IREPORTEDLAST 0x04 +#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 {}) */ /* - * We must remember what version the subnet's querier is. - * We conveniently use the IGMP message type for the proper - * membership report to keep this state. + * IGMP version tag. */ -#define IGMP_V1_ROUTER IGMP_V1_MEMBERSHIP_REPORT -#define IGMP_V2_ROUTER IGMP_V2_MEMBERSHIP_REPORT -#define IGMP_V3_ROUTER IGMP_V3_MEMBERSHIP_REPORT +#define IGMP_VERSION_NONE 0 /* Invalid */ +#define IGMP_VERSION_1 1 +#define IGMP_VERSION_2 2 +#define IGMP_VERSION_3 3 /* Default */ /* - * Revert to new router if we haven't heard from an old router in - * this amount of time. + * IGMPv3 protocol control variables. */ -#define IGMP_AGE_THRESHOLD 540 +#define IGMP_RV_INIT 2 /* Robustness Variable */ +#define IGMP_RV_MIN 1 +#define IGMP_RV_MAX 7 -/* - * IGMPv3 protocol defaults - */ -#define IGMP_INIT_ROBVAR 2 /* Robustness */ -#define IGMP_MAX_ROBVAR 7 -#define IGMP_INIT_QRYINT 125 /* Querier's Query interval */ -#define IGMP_MAX_QRYINT 255 -#define IGMP_INIT_QRYRSP 10 /* Query Response interval */ -#define IGMP_DEF_QRYMRT 10 -#define IGMP_UNSOL_INT 1 /* Unsolicited Report interval */ +#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 */ /* - * IGMPv3 report types + * IGMP-specific mbuf flags. */ -#define IGMP_REPORT_MODE_IN 1 /* mode-is-include */ -#define IGMP_REPORT_MODE_EX 2 /* mode-is-exclude */ -#define IGMP_REPORT_TO_IN 3 /* change-to-include */ -#define IGMP_REPORT_TO_EX 4 /* change-to-exclude */ -#define IGMP_REPORT_ALLOW_NEW 5 /* allow-new-sources */ -#define IGMP_REPORT_BLOCK_OLD 6 /* block-old-sources */ +#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 */ /* - * Report types + * 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 IGMP_MASK_CUR_STATE 0x01 /* Report current-state */ -#define IGMP_MASK_ALLOW_NEW 0x02 /* Report source as allow-new */ -#define IGMP_MASK_BLOCK_OLD 0x04 /* Report source as block-old */ -#define IGMP_MASK_TO_IN 0x08 /* Report source as to_in */ -#define IGMP_MASK_TO_EX 0x10 /* Report source as to_ex */ -#define IGMP_MASK_STATE_T1 0x20 /* State at T1 */ -#define IGMP_MASK_STATE_T2 0x40 /* State at T2 */ -#define IGMP_MASK_IF_STATE 0x80 /* Report current-state per interface */ - -#define IGMP_MASK_STATE_TX (IGMP_MASK_STATE_T1 | IGMP_MASK_STATE_T2) -#define IGMP_MASK_PENDING (IGMP_MASK_CUR_STATE | \ - IGMP_MASK_ALLOW_NEW | \ - IGMP_MASK_BLOCK_OLD) +#define RAOPT_LEN 4 /* Length of IP Router Alert option */ +#define IGMP_LEADINGSPACE \ + (sizeof(struct ip) + RAOPT_LEN + sizeof(struct igmp_report)) /* - * List identifiers + * 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_EXCLUDE_LIST 1 /* exclude list used to tag report */ -#define IGMP_INCLUDE_LIST 2 /* include list used to tag report */ -#define IGMP_RECORDED_LIST 3 /* recorded list used to tag report */ +#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) -void igmp_init(void); -void igmp_input(struct mbuf *, int); -void igmp_joingroup(struct in_multi *); -void igmp_leavegroup(struct in_multi *); +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 +#endif /* _KERNEL */ /* * Names for IGMP sysctl objects |
