#include <sys/counter.h>

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Data Structures
struct	igmpstat

struct	igmp_ifinfo

struct	igmp_ifsoftc

Macros
#define	IGPS_VERSION_3 3 /* as of FreeBSD 8.x */

#define	IGPS_VERSION3_LEN 168

#define	IGMPCTL_STATS 1 /* statistics (read-only) */

#define	IGMP_RANDOM_DELAY(X) (random() % (X) + 1)

#define	IGMP_MAX_STATE_CHANGES 24 /* Max pending changes per group */

#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 */

#define	IGMP_VERSION_NONE 0 /* Invalid */

#define	IGMP_VERSION_1 1

#define	IGMP_VERSION_2 2

#define	IGMP_VERSION_3 3 /* Default */

#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 */

#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 */

#define	RAOPT_LEN 4 /* Length of IP Router Alert option */

#define	IGMP_LEADINGSPACE (sizeof(struct ip) + RAOPT_LEN + sizeof(struct igmp_report))

#define	IGIF_SILENT 0x00000001 /* Do not use IGMP on this ifp */

#define	IGIF_LOOPBACK 0x00000002 /* Send IGMP reports to loopback */

#define	IGMPSTAT_ADD(name, val) VNET_PCPUSTAT_ADD(struct igmpstat, igmpstat, name, (val))

#define	IGMPSTAT_INC(name) IGMPSTAT_ADD(name, 1)

#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)

Functions
	VNET_PCPUSTAT_DECLARE (struct igmpstat, igmpstat)

int	igmp_change_state (struct in_multi *)

void	igmp_fasttimo (void)

struct igmp_ifsoftc *	igmp_domifattach (struct ifnet *)

void	igmp_domifdetach (struct ifnet *)

void	igmp_ifdetach (struct ifnet *)

int	igmp_input (struct mbuf *, int , int)

void	igmp_slowtimo (void)

	SYSCTL_DECL (_net_inet_igmp)

Macro Definition Documentation

◆ IGIF_LOOPBACK

#define IGIF_LOOPBACK 0x00000002 /* Send IGMP reports to loopback */

Definition at line 180 of file igmp_var.h.

◆ IGIF_SILENT

#define IGIF_SILENT 0x00000001 /* Do not use IGMP on this ifp */

Definition at line 179 of file igmp_var.h.

◆ IGMP_AWAKENING_MEMBER

#define IGMP_AWAKENING_MEMBER 6 /* IGMPv1/2 group timer will start */

Definition at line 114 of file igmp_var.h.

◆ IGMP_G_QUERY_PENDING_MEMBER

#define IGMP_G_QUERY_PENDING_MEMBER 7 /* IGMPv3 group query pending */

Definition at line 115 of file igmp_var.h.

◆ IGMP_IDLE_MEMBER

#define IGMP_IDLE_MEMBER 3 /* IGMPv1/2 we reported last */

Definition at line 111 of file igmp_var.h.

◆ IGMP_LAZY_MEMBER

#define IGMP_LAZY_MEMBER 4 /* IGMPv1/2 other member reporting */

Definition at line 112 of file igmp_var.h.

◆ IGMP_LEADINGSPACE

#define IGMP_LEADINGSPACE (sizeof(struct ip) + RAOPT_LEN + sizeof(struct igmp_report))

Definition at line 167 of file igmp_var.h.

◆ IGMP_LEAVING_MEMBER

#define IGMP_LEAVING_MEMBER 9 /* IGMPv3 dying gasp (pending last */

Definition at line 117 of file igmp_var.h.

◆ IGMP_LOCK

#define IGMP_LOCK ( ) mtx_lock(&igmp_mtx)

Definition at line 202 of file igmp_var.h.

◆ IGMP_LOCK_ASSERT

#define IGMP_LOCK_ASSERT ( ) mtx_assert(&igmp_mtx, MA_OWNED)

Definition at line 203 of file igmp_var.h.

◆ IGMP_LOCK_DESTROY

#define IGMP_LOCK_DESTROY ( ) mtx_destroy(&igmp_mtx)

Definition at line 201 of file igmp_var.h.

◆ IGMP_LOCK_INIT

#define IGMP_LOCK_INIT ( ) mtx_init(&igmp_mtx, "igmp_mtx", NULL, MTX_DEF)

Definition at line 200 of file igmp_var.h.

◆ IGMP_MAX_G_GS_PACKETS

#define IGMP_MAX_G_GS_PACKETS 8 /* # of packets to answer G/GS */

Definition at line 147 of file igmp_var.h.

◆ IGMP_MAX_RESPONSE_BURST

#define IGMP_MAX_RESPONSE_BURST 4 /* # of responses to send at once */

Definition at line 150 of file igmp_var.h.

◆ IGMP_MAX_RESPONSE_PACKETS

#define IGMP_MAX_RESPONSE_PACKETS 16 /* # of packets for general query */

Definition at line 149 of file igmp_var.h.

◆ IGMP_MAX_STATE_CHANGE_PACKETS

#define IGMP_MAX_STATE_CHANGE_PACKETS 8 /* # of packets per state change */

Definition at line 148 of file igmp_var.h.

◆ IGMP_MAX_STATE_CHANGES

#define IGMP_MAX_STATE_CHANGES 24 /* Max pending changes per group */

Definition at line 103 of file igmp_var.h.

◆ IGMP_NOT_MEMBER

#define IGMP_NOT_MEMBER 0 /* Can garbage collect in_multi */

Definition at line 108 of file igmp_var.h.

◆ IGMP_QI_INIT

#define IGMP_QI_INIT 125 /* Query Interval (s) */

Definition at line 135 of file igmp_var.h.

◆ IGMP_QI_MAX

#define IGMP_QI_MAX 255

Definition at line 137 of file igmp_var.h.

◆ IGMP_QI_MIN

#define IGMP_QI_MIN 1

Definition at line 136 of file igmp_var.h.

◆ IGMP_QRI_INIT

#define IGMP_QRI_INIT 10 /* Query Response Interval (s) */

Definition at line 139 of file igmp_var.h.

◆ IGMP_QRI_MAX

#define IGMP_QRI_MAX 255

Definition at line 141 of file igmp_var.h.

◆ IGMP_QRI_MIN

#define IGMP_QRI_MIN 1

Definition at line 140 of file igmp_var.h.

◆ IGMP_RANDOM_DELAY

#define IGMP_RANDOM_DELAY ( X ) (random() % (X) + 1)

Definition at line 102 of file igmp_var.h.

◆ IGMP_REPORTING_MEMBER

#define IGMP_REPORTING_MEMBER 2 /* IGMPv1/2/3 we are reporter */

Definition at line 110 of file igmp_var.h.

◆ IGMP_RESPONSE_BURST_INTERVAL

#define IGMP_RESPONSE_BURST_INTERVAL (PR_FASTHZ / 2) /* 500ms */

Definition at line 151 of file igmp_var.h.

◆ IGMP_RV_INIT

#define IGMP_RV_INIT 2 /* Robustness Variable */

Definition at line 131 of file igmp_var.h.

◆ IGMP_RV_MAX

#define IGMP_RV_MAX 7

Definition at line 133 of file igmp_var.h.

◆ IGMP_RV_MIN

#define IGMP_RV_MIN 1

Definition at line 132 of file igmp_var.h.

◆ IGMP_SG_QUERY_PENDING_MEMBER

#define IGMP_SG_QUERY_PENDING_MEMBER 8 /* IGMPv3 source query pending */

Definition at line 116 of file igmp_var.h.

◆ IGMP_SILENT_MEMBER

#define IGMP_SILENT_MEMBER 1 /* Do not perform IGMP for group */

Definition at line 109 of file igmp_var.h.

◆ IGMP_SLEEPING_MEMBER

#define IGMP_SLEEPING_MEMBER 5 /* IGMPv1/2 start query response */

Definition at line 113 of file igmp_var.h.

◆ IGMP_UNLOCK

#define IGMP_UNLOCK ( ) mtx_unlock(&igmp_mtx)

Definition at line 204 of file igmp_var.h.

◆ IGMP_UNLOCK_ASSERT

#define IGMP_UNLOCK_ASSERT ( ) mtx_assert(&igmp_mtx, MA_NOTOWNED)

Definition at line 205 of file igmp_var.h.

◆ IGMP_URI_INIT

#define IGMP_URI_INIT 3 /* Unsolicited Report Interval (s) */

Definition at line 143 of file igmp_var.h.

◆ IGMP_URI_MAX

#define IGMP_URI_MAX 10

Definition at line 145 of file igmp_var.h.

◆ IGMP_URI_MIN

#define IGMP_URI_MIN 0

Definition at line 144 of file igmp_var.h.

◆ IGMP_VERSION_1

#define IGMP_VERSION_1 1

Definition at line 124 of file igmp_var.h.

◆ IGMP_VERSION_2

#define IGMP_VERSION_2 2

Definition at line 125 of file igmp_var.h.

◆ IGMP_VERSION_3

#define IGMP_VERSION_3 3 /* Default */

Definition at line 126 of file igmp_var.h.

◆ IGMP_VERSION_NONE

#define IGMP_VERSION_NONE 0 /* Invalid */

Definition at line 123 of file igmp_var.h.

◆ IGMPCTL_STATS

#define IGMPCTL_STATS 1 /* statistics (read-only) */

Definition at line 100 of file igmp_var.h.

◆ IGMPSTAT_ADD

#define IGMPSTAT_ADD	(	name,
		val
	)	VNET_PCPUSTAT_ADD(struct igmpstat, igmpstat, name, (val))

Definition at line 191 of file igmp_var.h.

◆ IGMPSTAT_INC

#define IGMPSTAT_INC ( name ) IGMPSTAT_ADD(name, 1)

Definition at line 193 of file igmp_var.h.

◆ IGPS_VERSION3_LEN

#define IGPS_VERSION3_LEN 168

Definition at line 92 of file igmp_var.h.

◆ IGPS_VERSION_3

#define IGPS_VERSION_3 3 /* as of FreeBSD 8.x */

Definition at line 91 of file igmp_var.h.

◆ M_GROUPREC

#define M_GROUPREC M_PROTO3 /* mbuf chain is a group record */

Definition at line 158 of file igmp_var.h.

◆ M_IGMP_LOOP

#define M_IGMP_LOOP M_PROTO4 /* transmit on loif, not real ifp */

Definition at line 159 of file igmp_var.h.

◆ M_IGMPV2

#define M_IGMPV2 M_PROTO1 /* Packet is IGMPv2 */

Definition at line 156 of file igmp_var.h.

◆ M_IGMPV3_HDR

#define M_IGMPV3_HDR M_PROTO2 /* Packet has IGMPv3 headers */

Definition at line 157 of file igmp_var.h.

◆ RAOPT_LEN

#define RAOPT_LEN 4 /* Length of IP Router Alert option */

Definition at line 166 of file igmp_var.h.

Function Documentation

◆ igmp_change_state()

int igmp_change_state ( struct in_multi * inm )

Definition at line 2313 of file igmp.c.

References igmp_final_leave(), igmp_handle_state_change(), igmp_initial_join(), IGMP_LOCK, IGMP_UNLOCK, IN_MULTI_LOCK_ASSERT, in_multi::inm_ifma, in_multi::inm_ifp, in_multi::inm_st, in_multi::inm_st::iss_fmode, and KTR_IGMPV3.

Referenced by in_joingroup_locked(), in_leavegroup_locked(), inp_block_unblock_source(), inp_join_group(), inp_leave_group(), and inp_set_source_filters().

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◆ igmp_domifattach()

struct igmp_ifsoftc * igmp_domifattach ( struct ifnet * ifp )

Definition at line 611 of file igmp.c.

References igi_alloc_locked(), igmp_ifsoftc::igi_flags, IGIF_SILENT, IGMP_LOCK, IGMP_UNLOCK, and KTR_IGMPV3.

Referenced by in_domifattach().

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◆ igmp_domifdetach()

void igmp_domifdetach ( struct ifnet * ifp )

Definition at line 711 of file igmp.c.

References igi_delete_locked(), IGMP_LOCK, IGMP_UNLOCK, and KTR_IGMPV3.

Referenced by in_domifdetach(), and in_ifscrub_all().

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◆ igmp_fasttimo()

void igmp_fasttimo ( void )

Definition at line 1659 of file igmp.c.

References igmp_fasttimo_vnet().

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◆ igmp_ifdetach()

void igmp_ifdetach ( struct ifnet * ifp )

Definition at line 671 of file igmp.c.

References ifma_restart, igmp_ifsoftc::igi_version, IGMP_LEAVING_MEMBER, IGMP_LOCK, IGMP_UNLOCK, IGMP_VERSION_3, inm_clear_recorded(), inm_rele_locked(), inm_release_list_deferred(), in_multi::inm_state, KTR_IGMPV3, and next.

Referenced by in_purgemaddrs().

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◆ igmp_input()

int igmp_input	(	struct mbuf **	mp,
		int *	offp,
		int	proto
	)

Definition at line 1464 of file igmp.c.

References igmp::igmp_code, IGMP_DVMRP, IGMP_HOST_MEMBERSHIP_QUERY, igmp_input_v1_query(), igmp_input_v1_report(), igmp_input_v2_query(), igmp_input_v2_report(), igmp_input_v3_query(), IGMP_MINLEN, igmpv3::igmp_numsrc, igmp::igmp_type, IGMP_v1_HOST_MEMBERSHIP_REPORT, IGMP_v2_HOST_MEMBERSHIP_REPORT, IGMP_v3_HOST_MEMBERSHIP_REPORT, IGMP_V3_QUERY_MINLEN, IGMP_VERSION_1, IGMP_VERSION_2, IGMP_VERSION_3, IGMPSTAT_INC, ip_checkrouteralert(), ip::ip_len, ip::ip_ttl, KTR_IGMPV3, rip_input(), V_igmp_v1enable, and V_igmp_v2enable.

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◆ igmp_slowtimo()

void igmp_slowtimo ( void )

Definition at line 2197 of file igmp.c.

References igmp_slowtimo_vnet().

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◆ SYSCTL_DECL()

SYSCTL_DECL ( _net_inet_igmp )

◆ VNET_PCPUSTAT_DECLARE()

VNET_PCPUSTAT_DECLARE	(	struct igmpstat	,
		igmpstat
	)

Data Structures

Macros

Functions

Macro Definition Documentation

◆ IGIF_LOOPBACK

◆ IGIF_SILENT

◆ IGMP_AWAKENING_MEMBER

◆ IGMP_G_QUERY_PENDING_MEMBER

◆ IGMP_IDLE_MEMBER

◆ IGMP_LAZY_MEMBER

◆ IGMP_LEADINGSPACE

◆ IGMP_LEAVING_MEMBER

◆ IGMP_LOCK

◆ IGMP_LOCK_ASSERT

◆ IGMP_LOCK_DESTROY

◆ IGMP_LOCK_INIT

◆ IGMP_MAX_G_GS_PACKETS

◆ IGMP_MAX_RESPONSE_BURST

◆ IGMP_MAX_RESPONSE_PACKETS

◆ IGMP_MAX_STATE_CHANGE_PACKETS

◆ IGMP_MAX_STATE_CHANGES

◆ IGMP_NOT_MEMBER

◆ IGMP_QI_INIT

◆ IGMP_QI_MAX

◆ IGMP_QI_MIN

◆ IGMP_QRI_INIT

◆ IGMP_QRI_MAX

◆ IGMP_QRI_MIN

◆ IGMP_RANDOM_DELAY

◆ IGMP_REPORTING_MEMBER

◆ IGMP_RESPONSE_BURST_INTERVAL

◆ IGMP_RV_INIT

◆ IGMP_RV_MAX

◆ IGMP_RV_MIN

◆ IGMP_SG_QUERY_PENDING_MEMBER

◆ IGMP_SILENT_MEMBER

◆ IGMP_SLEEPING_MEMBER

◆ IGMP_UNLOCK

◆ IGMP_UNLOCK_ASSERT

◆ IGMP_URI_INIT

◆ IGMP_URI_MAX

◆ IGMP_URI_MIN

◆ IGMP_VERSION_1

◆ IGMP_VERSION_2

◆ IGMP_VERSION_3

◆ IGMP_VERSION_NONE

◆ IGMPCTL_STATS

◆ IGMPSTAT_ADD

◆ IGMPSTAT_INC

◆ IGPS_VERSION3_LEN

◆ IGPS_VERSION_3

◆ M_GROUPREC

◆ M_IGMP_LOOP

◆ M_IGMPV2

◆ M_IGMPV3_HDR

◆ RAOPT_LEN

Function Documentation

◆ igmp_change_state()

◆ igmp_domifattach()

◆ igmp_domifdetach()

◆ igmp_fasttimo()

◆ igmp_ifdetach()

◆ igmp_input()

◆ igmp_slowtimo()

◆ SYSCTL_DECL()

◆ VNET_PCPUSTAT_DECLARE()