#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sysctl.h>
#include <sys/ktr.h>
#include <sys/taskqueue.h>
#include <sys/tree.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_dl.h>
#include <net/route.h>
#include <net/route/nhop.h>
#include <net/vnet.h>
#include <net/ethernet.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_fib.h>
#include <netinet/in_pcb.h>
#include <netinet/in_var.h>
#include <netinet/ip_var.h>
#include <netinet/igmp_var.h>

Include dependency graph for in_mcast.c:

Data Structures
union	sockunion

Macros
#define	KTR_IGMPV3 KTR_INET

#define	__SOCKUNION_DECLARED

Typedefs
typedef union sockunion	sockunion_t

Functions
	__FBSDID ("$FreeBSD$")

static	MALLOC_DEFINE (M_INMFILTER, "in_mfilter", "IPv4 multicast PCB-layer source filter")

static	MALLOC_DEFINE (M_IPMADDR, "in_multi", "IPv4 multicast group")

static	MALLOC_DEFINE (M_IPMOPTS, "ip_moptions", "IPv4 multicast options")

static	MALLOC_DEFINE (M_IPMSOURCE, "ip_msource", "IPv4 multicast IGMP-layer source filter")

	MTX_SYSINIT (in_multi_mtx, &in_multi_list_mtx, "in_multi_list_mtx", MTX_DEF)

	MTX_SYSINIT (in_multi_free_mtx, &in_multi_free_mtx, "in_multi_free_mtx", MTX_DEF)

	SX_SYSINIT (in_multi_sx, &in_multi_sx, "in_multi_sx")

static void	imf_commit (struct in_mfilter *)

static int	imf_get_source (struct in_mfilter imf, const struct sockaddr_in psin, struct in_msource **)

static struct in_msource *	imf_graft (struct in_mfilter , const uint8_t, const struct sockaddr_in )

static void	imf_leave (struct in_mfilter *)

static int	imf_prune (struct in_mfilter , const struct sockaddr_in )

static void	imf_purge (struct in_mfilter *)

static void	imf_rollback (struct in_mfilter *)

static void	imf_reap (struct in_mfilter *)

static struct in_mfilter *	imo_match_group (const struct ip_moptions , const struct ifnet , const struct sockaddr *)

static struct in_msource *	imo_match_source (struct in_mfilter , const struct sockaddr )

static void	ims_merge (struct ip_msource ims, const struct in_msource lims, const int rollback)

static int	in_getmulti (struct ifnet , const struct in_addr , struct in_multi **)

static int	inm_get_source (struct in_multi inm, const in_addr_t haddr, const int noalloc, struct ip_msource *pims)

static int	inm_merge (struct in_multi , struct in_mfilter )

static void	inm_purge (struct in_multi *)

static void	inm_reap (struct in_multi *)

static void	inm_release (struct in_multi *)

static struct ip_moptions *	inp_findmoptions (struct inpcb *)

static int	inp_get_source_filters (struct inpcb , struct sockopt )

static int	inp_join_group (struct inpcb , struct sockopt )

static int	inp_leave_group (struct inpcb , struct sockopt )

static struct ifnet *	inp_lookup_mcast_ifp (const struct inpcb , const struct sockaddr_in , const struct in_addr)

static int	inp_block_unblock_source (struct inpcb , struct sockopt )

static int	inp_set_multicast_if (struct inpcb , struct sockopt )

static int	inp_set_source_filters (struct inpcb , struct sockopt )

static int	sysctl_ip_mcast_filters (SYSCTL_HANDLER_ARGS)

static	SYSCTL_NODE (_net_inet_ip, OID_AUTO, mcast, CTLFLAG_RW\|CTLFLAG_MPSAFE, 0, "IPv4 multicast")

	SYSCTL_ULONG (_net_inet_ip_mcast, OID_AUTO, maxgrpsrc, CTLFLAG_RWTUN, &in_mcast_maxgrpsrc, 0, "Max source filters per group")

	SYSCTL_ULONG (_net_inet_ip_mcast, OID_AUTO, maxsocksrc, CTLFLAG_RWTUN, &in_mcast_maxsocksrc, 0, "Max source filters per socket")

	SYSCTL_INT (_net_inet_ip_mcast, OID_AUTO, loop, CTLFLAG_RWTUN, &in_mcast_loop, 0, "Loopback multicast datagrams by default")

static	SYSCTL_NODE (_net_inet_ip_mcast, OID_AUTO, filters, CTLFLAG_RD\|CTLFLAG_MPSAFE, sysctl_ip_mcast_filters, "Per-interface stack-wide source filters")

	TASKQUEUE_DEFINE_THREAD (inm_free)

static void	inm_release_task (void *arg __unused, int pending __unused)

void	inm_release_wait (void *arg __unused)

void	inm_release_list_deferred (struct in_multi_head *inmh)

void	inm_disconnect (struct in_multi *inm)

void	inm_release_deferred (struct in_multi *inm)

static __inline void	imf_init (struct in_mfilter *imf, const int st0, const int st1)

struct in_mfilter *	ip_mfilter_alloc (const int mflags, const int st0, const int st1)

void	ip_mfilter_free (struct in_mfilter *imf)

struct in_multi *	inm_lookup_locked (struct ifnet *ifp, const struct in_addr ina)

struct in_multi *	inm_lookup (struct ifnet *ifp, const struct in_addr ina)

int	imo_multi_filter (const struct ip_moptions imo, const struct ifnet ifp, const struct sockaddr group, const struct sockaddr src)

void	inm_clear_recorded (struct in_multi *inm)

int	inm_record_source (struct in_multi *inm, const in_addr_t naddr)

void	inm_commit (struct in_multi *inm)

int	in_joingroup (struct ifnet ifp, const struct in_addr gina, struct in_mfilter imf, struct in_multi *pinm)

int	in_joingroup_locked (struct ifnet ifp, const struct in_addr gina, struct in_mfilter imf, struct in_multi *pinm)

int	in_leavegroup (struct in_multi inm, struct in_mfilter imf)

int	in_leavegroup_locked (struct in_multi inm, struct in_mfilter imf)

void	inp_freemoptions (struct ip_moptions *imo)

int	inp_getmoptions (struct inpcb inp, struct sockopt sopt)

int	inp_setmoptions (struct inpcb inp, struct sockopt sopt)

void	inm_print (const struct in_multi *inm)

	RB_GENERATE (ip_msource_tree, ip_msource, ims_link, ip_msource_cmp)

Variables
struct mtx	in_multi_list_mtx

struct mtx	in_multi_free_mtx

struct sx	in_multi_sx

int	ifma_restart

static u_long	in_mcast_maxgrpsrc = IP_MAX_GROUP_SRC_FILTER

static u_long	in_mcast_maxsocksrc = IP_MAX_SOCK_SRC_FILTER

int	in_mcast_loop = IP_DEFAULT_MULTICAST_LOOP

static struct in_multi_head	inm_free_list = SLIST_HEAD_INITIALIZER()

static struct task	inm_free_task = TASK_INITIALIZER(0, inm_release_task, NULL)

Macro Definition Documentation

◆ __SOCKUNION_DECLARED

#define __SOCKUNION_DECLARED

Definition at line 84 of file in_mcast.c.

◆ KTR_IGMPV3

#define KTR_IGMPV3 KTR_INET

Definition at line 73 of file in_mcast.c.

Typedef Documentation

◆ sockunion_t

typedef union sockunion sockunion_t

Definition at line 83 of file in_mcast.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ imf_commit()

static void imf_commit ( struct in_mfilter * imf )

static

Definition at line 875 of file in_mcast.c.

References in_mfilter::imf_sources, in_mfilter::imf_st, and in_msource::imsl_st.

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

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◆ imf_get_source()

static int imf_get_source	(	struct in_mfilter *	imf,
		const struct sockaddr_in *	psin,
		struct in_msource **	plims
	)

static

Definition at line 738 of file in_mcast.c.

References in_mfilter::imf_nsrc, in_mfilter::imf_sources, ip_msource::ims_haddr, in_msource::ims_haddr, in_msource::imsl_st, in_mcast_maxsocksrc, in_addr::s_addr, and sockaddr_in::sin_addr.

Referenced by inp_set_source_filters().

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◆ imf_graft()

static struct in_msource * imf_graft	(	struct in_mfilter *	imf,
		const uint8_t	st1,
		const struct sockaddr_in *	psin
	)

static

Definition at line 782 of file in_mcast.c.

References in_mfilter::imf_nsrc, in_mfilter::imf_sources, in_msource::ims_haddr, in_msource::imsl_st, in_addr::s_addr, and sockaddr_in::sin_addr.

Referenced by inp_block_unblock_source(), and inp_join_group().

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◆ imf_init()

static __inline void imf_init	(	struct in_mfilter *	imf,
		const int	st0,
		const int	st1
	)

static

Definition at line 330 of file in_mcast.c.

References in_mfilter::imf_sources, and in_mfilter::imf_st.

Referenced by in_joingroup_locked(), in_leavegroup_locked(), and ip_mfilter_alloc().

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◆ imf_leave()

static void imf_leave ( struct in_mfilter * imf )

static

Definition at line 859 of file in_mcast.c.

References in_mfilter::imf_sources, in_mfilter::imf_st, and in_msource::imsl_st.

Referenced by inp_freemoptions(), inp_leave_group(), and inp_set_source_filters().

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◆ imf_prune()

static int imf_prune	(	struct in_mfilter *	imf,
		const struct sockaddr_in *	psin
	)

static

Definition at line 811 of file in_mcast.c.

References in_mfilter::imf_sources, ip_msource::ims_haddr, in_msource::imsl_st, in_addr::s_addr, and sockaddr_in::sin_addr.

Referenced by inp_block_unblock_source(), and inp_leave_group().

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◆ imf_purge()

static void imf_purge ( struct in_mfilter * imf )

static

Definition at line 912 of file in_mcast.c.

References in_mfilter::imf_nsrc, in_mfilter::imf_sources, in_mfilter::imf_st, and KTR_IGMPV3.

Referenced by ip_mfilter_free().

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◆ imf_reap()

static void imf_reap ( struct in_mfilter * imf )

static

Definition at line 891 of file in_mcast.c.

References in_mfilter::imf_nsrc, in_mfilter::imf_sources, in_msource::imsl_st, and KTR_IGMPV3.

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

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◆ imf_rollback()

static void imf_rollback ( struct in_mfilter * imf )

static

Definition at line 831 of file in_mcast.c.

References in_mfilter::imf_nsrc, in_mfilter::imf_sources, in_mfilter::imf_st, in_msource::imsl_st, and KTR_IGMPV3.

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

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◆ imo_match_group()

static struct in_mfilter * imo_match_group	(	const struct ip_moptions *	imo,
		const struct ifnet *	ifp,
		const struct sockaddr *	group
	)

static

Definition at line 410 of file in_mcast.c.

References in_mfilter::imf_inm, in_hosteq, in_multi::inm_addr, in_multi::inm_ifp, IP_MFILTER_FOREACH, and sockaddr_in::sin_addr.

Referenced by imo_multi_filter(), inp_block_unblock_source(), inp_get_source_filters(), inp_join_group(), inp_leave_group(), and inp_set_source_filters().

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◆ imo_match_source()

static struct in_msource * imo_match_source	(	struct in_mfilter *	imf,
		const struct sockaddr *	src
	)

static

Definition at line 439 of file in_mcast.c.

References in_mfilter::imf_sources, ip_msource::ims_haddr, in_addr::s_addr, sockunion::sin, and sockaddr_in::sin_addr.

Referenced by imo_multi_filter(), inp_block_unblock_source(), inp_join_group(), and inp_leave_group().

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◆ imo_multi_filter()

int imo_multi_filter	(	const struct ip_moptions *	imo,
		const struct ifnet *	ifp,
		const struct sockaddr *	group,
		const struct sockaddr *	src
	)

Definition at line 462 of file in_mcast.c.

References in_mfilter::imf_st, imo_match_group(), imo_match_source(), in_msource::imsl_st, MCAST_NOTGMEMBER, MCAST_NOTSMEMBER, and MCAST_PASS.

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◆ ims_merge()

static void ims_merge	(	struct ip_msource *	ims,
		const struct in_msource *	lims,
		const int	rollback
	)

static

Definition at line 973 of file in_mcast.c.

References ip_msource::ims_st::ex, ip_msource::ims_haddr, ip_msource::ims_st, in_msource::imsl_st, ip_msource::ims_st::in, and KTR_IGMPV3.

Referenced by inm_merge().

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◆ in_getmulti()

static int in_getmulti	(	struct ifnet *	ifp,
		const struct in_addr *	group,
		struct in_multi **	pinm
	)

static

Definition at line 503 of file in_mcast.c.

References IGMP_MAX_STATE_CHANGES, IGMP_NOT_MEMBER, in_ifinfo::ii_igmp, in_hosteq, IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, IN_MULTI_LOCK_ASSERT, inet_ntoa_r(), inm_acquire_locked(), in_multi::inm_addr, in_multi::inm_ifma, in_multi::inm_ifp, in_multi::inm_igi, inm_lookup(), in_multi::inm_refcount, in_multi::inm_scq, in_multi::inm_srcs, in_multi::inm_st, in_multi::inm_state, in_multi::inm_st::iss_fmode, sockaddr_in::sin_addr, sockaddr_in::sin_family, and sockaddr_in::sin_len.

Referenced by in_joingroup_locked().

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◆ in_joingroup()

int in_joingroup	(	struct ifnet *	ifp,
		const struct in_addr *	gina,
		struct in_mfilter *	imf,
		struct in_multi **	pinm
	)

Definition at line 1201 of file in_mcast.c.

References in_joingroup_locked(), IN_MULTI_LOCK, and IN_MULTI_UNLOCK.

Referenced by carp_multicast_setup(), and in_aifaddr_ioctl().

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◆ in_joingroup_locked()

int in_joingroup_locked	(	struct ifnet *	ifp,
		const struct in_addr *	gina,
		struct in_mfilter *	imf,
		struct in_multi **	pinm
	)

Definition at line 1223 of file in_mcast.c.

References igmp_change_state(), imf_init(), in_getmulti(), IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, IN_MULTI_LIST_UNLOCK_ASSERT, IN_MULTI_LOCK_ASSERT, inm_merge(), inm_release_deferred(), KTR_IGMPV3, and in_addr::s_addr.

Referenced by in_joingroup(), and inp_join_group().

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◆ in_leavegroup()

int in_leavegroup	(	struct in_multi *	inm,
		struct in_mfilter *	imf
	)

Definition at line 1286 of file in_mcast.c.

References in_leavegroup_locked(), IN_MULTI_LOCK, and IN_MULTI_UNLOCK.

Referenced by carp_multicast_cleanup(), in_difaddr_ioctl(), and inp_freemoptions().

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◆ in_leavegroup_locked()

int in_leavegroup_locked	(	struct in_multi *	inm,
		struct in_mfilter *	imf
	)

Definition at line 1311 of file in_mcast.c.

References igmp_change_state(), imf_init(), IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, IN_MULTI_LIST_UNLOCK_ASSERT, IN_MULTI_LOCK_ASSERT, in_multi::inm_addr, in_multi::inm_ifp, inm_merge(), inm_release_deferred(), KTR_IGMPV3, and in_addr::s_addr.

Referenced by in_leavegroup(), and inp_leave_group().

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◆ inm_clear_recorded()

void inm_clear_recorded ( struct in_multi * inm )

Definition at line 653 of file in_mcast.c.

References ip_msource::ims_stp, IN_MULTI_LIST_LOCK_ASSERT, in_multi::inm_srcs, in_multi::inm_st, and in_multi::inm_st::iss_rec.

Referenced by igmp_ifdetach(), igmp_input_v3_group_query(), igmp_v3_cancel_link_timers(), igmp_v3_process_group_timers(), and igmp_v3_suppress_group_record().

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◆ inm_commit()

void inm_commit ( struct in_multi * inm )

Definition at line 1143 of file in_mcast.c.

References ip_msource::ims_st, inm_print(), in_multi::inm_srcs, in_multi::inm_st, and KTR_IGMPV3.

Referenced by igmp_final_leave(), igmp_handle_state_change(), igmp_initial_join(), and igmp_v3_process_group_timers().

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◆ inm_disconnect()

void inm_disconnect ( struct in_multi * inm )

Definition at line 258 of file in_mcast.c.

References ifma_restart, in_multi::inm_ifma, and in_multi::inm_ifp.

Referenced by inm_rele_locked(), and inm_release_deferred().

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◆ inm_get_source()

static int inm_get_source	(	struct in_multi *	inm,
		const in_addr_t	haddr,
		const int	noalloc,
		struct ip_msource **	pims
	)

static

Definition at line 939 of file in_mcast.c.

References ip_msource::ims_haddr, in_mcast_maxgrpsrc, in_multi::inm_nsrc, in_multi::inm_srcs, and KTR_IGMPV3.

Referenced by inm_merge().

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◆ inm_lookup()

struct in_multi * inm_lookup	(	struct ifnet *	ifp,
		const struct in_addr	ina
	)

Definition at line 390 of file in_mcast.c.

References IN_MULTI_LIST_LOCK_ASSERT, and inm_lookup_locked().

Referenced by igmp_input_v1_report(), igmp_input_v2_query(), igmp_input_v2_report(), igmp_input_v3_query(), and in_getmulti().

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◆ inm_lookup_locked()

struct in_multi * inm_lookup_locked	(	struct ifnet *	ifp,
		const struct in_addr	ina
	)

Definition at line 364 of file in_mcast.c.

References IN_MULTI_LIST_LOCK_ASSERT, in_multi::inm_addr, and in_addr::s_addr.

Referenced by inm_lookup().

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◆ inm_merge()

static int inm_merge	(	struct in_multi *	inm,
		struct in_mfilter *	imf
	)

static

Definition at line 1014 of file in_mcast.c.

References in_mfilter::imf_sources, in_mfilter::imf_st, in_msource::ims_haddr, ims_merge(), in_msource::imsl_st, IN_MULTI_LIST_LOCK_ASSERT, inm_get_source(), inm_print(), inm_reap(), in_multi::inm_st, in_multi::inm_st::iss_asm, in_multi::inm_st::iss_ex, in_multi::inm_st::iss_fmode, in_multi::inm_st::iss_in, 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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◆ inm_print()

void inm_print ( const struct in_multi * inm )

Definition at line 3033 of file in_mcast.c.

Referenced by inm_commit(), and inm_merge().

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◆ inm_purge()

static void inm_purge ( struct in_multi * inm )

static

Definition at line 1181 of file in_mcast.c.

References in_multi::inm_nsrc, in_multi::inm_srcs, and KTR_IGMPV3.

Referenced by inm_release().

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◆ inm_reap()

static void inm_reap ( struct in_multi * inm )

static

Definition at line 1161 of file in_mcast.c.

References ip_msource::ims_st::ex, ip_msource::ims_st, ip_msource::ims_stp, ip_msource::ims_st::in, in_multi::inm_nsrc, in_multi::inm_srcs, and KTR_IGMPV3.

Referenced by inm_merge().

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◆ inm_record_source()

int inm_record_source	(	struct in_multi *	inm,
		const in_addr_t	naddr
	)

Definition at line 692 of file in_mcast.c.

References ip_msource::ims_haddr, ip_msource::ims_stp, in_mcast_maxgrpsrc, IN_MULTI_LIST_LOCK_ASSERT, in_multi::inm_nsrc, in_multi::inm_srcs, in_multi::inm_st, and in_multi::inm_st::iss_rec.

Referenced by igmp_input_v3_group_query().

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◆ inm_release()

static void inm_release ( struct in_multi * inm )

static

Definition at line 619 of file in_mcast.c.

References in_multi::inm_ifma, in_multi::inm_ifp, inm_purge(), in_multi::inm_refcount, and KTR_IGMPV3.

Referenced by inm_release_task().

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◆ inm_release_deferred()

void inm_release_deferred ( struct in_multi * inm )

Definition at line 291 of file in_mcast.c.

References IN_MULTI_LIST_LOCK_ASSERT, inm_disconnect(), in_multi::inm_ifma, in_multi::inm_refcount, and inm_release_list_deferred().

Referenced by in_joingroup_locked(), in_leavegroup_locked(), and inp_join_group().

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◆ inm_release_list_deferred()

void inm_release_list_deferred ( struct in_multi_head * inmh )

Definition at line 246 of file in_mcast.c.

References in_multi_free_mtx, inm_free_list, and inm_free_task.

Referenced by igmp_fasttimo_vnet(), igmp_ifdetach(), igmp_v3_cancel_link_timers(), in_purgemaddrs(), and inm_release_deferred().

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◆ inm_release_task()

static void inm_release_task	(	void *arg	__unused,
		int pending	__unused
	)

static

Definition at line 307 of file in_mcast.c.

References in_multi_free_mtx, IN_MULTI_LOCK, IN_MULTI_UNLOCK, inm_free_list, and inm_release().

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◆ inm_release_wait()

void inm_release_wait ( void *arg __unused )

Definition at line 231 of file in_mcast.c.

References inm_free_task.

Referenced by in_ifdetach().

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◆ inp_block_unblock_source()

static int inp_block_unblock_source	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

static

Definition at line 1377 of file in_mcast.c.

References igmp_change_state(), imf_commit(), imf_graft(), in_mfilter::imf_inm, imf_prune(), imf_reap(), imf_rollback(), in_mfilter::imf_st, imo_match_group(), imo_match_source(), IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, IN_MULTI_LOCK, IN_MULTI_UNLOCK, in_nullhost, INADDR_TO_IFP, inm_merge(), inp_findmoptions(), INP_WLOCK_ASSERT, INP_WUNLOCK, and KTR_IGMPV3.

Referenced by inp_setmoptions().

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◆ inp_findmoptions()

static struct ip_moptions * inp_findmoptions ( struct inpcb * inp )

static

Definition at line 1564 of file in_mcast.c.

References in_mcast_loop, INADDR_ANY, inpcb::inp_moptions, INP_WLOCK, and INP_WUNLOCK.

Referenced by inp_block_unblock_source(), inp_join_group(), inp_leave_group(), inp_set_multicast_if(), inp_set_source_filters(), and inp_setmoptions().

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◆ inp_freemoptions()

void inp_freemoptions ( struct ip_moptions * imo )

Definition at line 1593 of file in_mcast.c.

References in_mfilter::imf_inm, imf_leave(), in_leavegroup(), in_multi::inm_ifp, ip_mfilter_first(), ip_mfilter_free(), and ip_mfilter_remove().

Referenced by in_pcbfree().

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◆ inp_get_source_filters()

static int inp_get_source_filters	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

static

Definition at line 1625 of file in_mcast.c.

References in_mfilter::imf_sources, in_mfilter::imf_st, imo_match_group(), in_msource::ims_haddr, in_msource::imsl_st, in_mcast_maxsocksrc, inpcb::inp_moptions, INP_WLOCK, INP_WLOCK_ASSERT, INP_WUNLOCK, in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_len, and sockaddr_in::sin_port.

Referenced by inp_getmoptions().

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◆ inp_getmoptions()

int inp_getmoptions	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

Definition at line 1743 of file in_mcast.c.

References IA_SIN, IFP_TO_IA, in_nullhost, inp_get_source_filters(), inpcb::inp_moptions, inpcb::inp_socket, INP_UNLOCK_ASSERT, INP_WLOCK, and INP_WUNLOCK.

Referenced by ip_ctloutput().

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◆ inp_join_group()

static int inp_join_group	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

static

Definition at line 1918 of file in_mcast.c.

References igmp_change_state(), imf_commit(), imf_graft(), in_mfilter::imf_inm, imf_reap(), imf_rollback(), in_mfilter::imf_st, imo_match_group(), imo_match_source(), in_joingroup_locked(), IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, IN_MULTI_LOCK, IN_MULTI_UNLOCK, in_pcbref(), in_pcbrele_wlocked(), inm_merge(), inm_release_deferred(), inp_findmoptions(), inp_lookup_mcast_ifp(), INP_WLOCK, INP_WLOCK_ASSERT, INP_WUNLOCK, ip_mfilter_alloc(), ip_mfilter_count(), ip_mfilter_free(), ip_mfilter_insert(), and KTR_IGMPV3.

Referenced by inp_setmoptions().

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◆ inp_leave_group()

static int inp_leave_group	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

static

Definition at line 2244 of file in_mcast.c.

References igmp_change_state(), imf_commit(), in_mfilter::imf_inm, imf_leave(), imf_prune(), imf_reap(), imf_rollback(), in_mfilter::imf_st, imo_match_group(), imo_match_source(), in_leavegroup_locked(), IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, IN_MULTI_LOCK, IN_MULTI_UNLOCK, in_nullhost, INADDR_ANY, INADDR_TO_IFP, inm_merge(), inp_findmoptions(), INP_WLOCK_ASSERT, INP_WUNLOCK, ip_mfilter_free(), ip_mfilter_remove(), and KTR_IGMPV3.

Referenced by inp_setmoptions().

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◆ inp_lookup_mcast_ifp()

static struct ifnet * inp_lookup_mcast_ifp	(	const struct inpcb *	inp,
		const struct sockaddr_in *	gsin,
		const struct in_addr	ina
	)

static

Definition at line 1872 of file in_mcast.c.

References fib4_lookup(), in_nullhost, INADDR_TO_IFP, in_conninfo::inc_fibnum, inpcb::inp_inc, in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, and V_in_ifaddrhead.

Referenced by inp_join_group().

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◆ inp_set_multicast_if()

static int inp_set_multicast_if	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

static

Definition at line 2463 of file in_mcast.c.

References in_nullhost, INADDR_ANY, INADDR_TO_IFP, inp_findmoptions(), INP_WUNLOCK, KTR_IGMPV3, and in_addr::s_addr.

Referenced by inp_setmoptions().

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◆ inp_set_source_filters()

static int inp_set_source_filters	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

static

Definition at line 2538 of file in_mcast.c.

References igmp_change_state(), imf_commit(), imf_get_source(), in_mfilter::imf_inm, imf_leave(), imf_reap(), imf_rollback(), in_mfilter::imf_st, imo_match_group(), in_msource::imsl_st, in_mcast_maxsocksrc, IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, IN_MULTI_LOCK, IN_MULTI_UNLOCK, inm_merge(), inp_findmoptions(), INP_WLOCK, INP_WLOCK_ASSERT, INP_WUNLOCK, KTR_IGMPV3, sockaddr_in::sin_family, and sockaddr_in::sin_len.

Referenced by inp_setmoptions().

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◆ inp_setmoptions()

int inp_setmoptions	(	struct inpcb *	inp,
		struct sockopt *	sopt
	)

Definition at line 2713 of file in_mcast.c.

References inp_block_unblock_source(), inp_findmoptions(), inp_join_group(), inp_leave_group(), inp_set_multicast_if(), inp_set_source_filters(), inpcb::inp_socket, INP_UNLOCK_ASSERT, INP_WUNLOCK, and legal_vif_num.

Referenced by ip_ctloutput().

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◆ ip_mfilter_alloc()

struct in_mfilter * ip_mfilter_alloc	(	const int	mflags,
		const int	st0,
		const int	st1
	)

Definition at line 339 of file in_mcast.c.

References imf_init().

Referenced by carp_multicast_setup(), and inp_join_group().

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◆ ip_mfilter_free()

void ip_mfilter_free ( struct in_mfilter * imf )

Definition at line 351 of file in_mcast.c.

References imf_purge().

Referenced by carp_multicast_cleanup(), carp_multicast_setup(), inp_freemoptions(), inp_join_group(), and inp_leave_group().

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◆ MALLOC_DEFINE() [1/4]

static MALLOC_DEFINE	(	M_INMFILTER	,
		"in_mfilter"	,
		"IPv4 multicast PCB-layer source filter"
	)

static

◆ MALLOC_DEFINE() [2/4]

static MALLOC_DEFINE	(	M_IPMADDR	,
		"in_multi"	,
		"IPv4 multicast group"
	)

static

◆ MALLOC_DEFINE() [3/4]

static MALLOC_DEFINE	(	M_IPMOPTS	,
		"ip_moptions"	,
		"IPv4 multicast options"
	)

static

◆ MALLOC_DEFINE() [4/4]

static MALLOC_DEFINE	(	M_IPMSOURCE	,
		"ip_msource"	,
		"IPv4 multicast IGMP-layer source filter"
	)

static

◆ MTX_SYSINIT() [1/2]

MTX_SYSINIT	(	in_multi_free_mtx	,
		&	in_multi_free_mtx,
		"in_multi_free_mtx"	,
		MTX_DEF
	)

◆ MTX_SYSINIT() [2/2]

MTX_SYSINIT	(	in_multi_mtx	,
		&	in_multi_list_mtx,
		"in_multi_list_mtx"	,
		MTX_DEF
	)

◆ RB_GENERATE()

RB_GENERATE	(	ip_msource_tree	,
		ip_msource	,
		ims_link	,
		ip_msource_cmp
	)

◆ SX_SYSINIT()

SX_SYSINIT	(	in_multi_sx	,
		&	in_multi_sx,
		"in_multi_sx"
	)

◆ SYSCTL_INT()

SYSCTL_INT	(	_net_inet_ip_mcast	,
		OID_AUTO	,
		loop	,
		CTLFLAG_RWTUN	,
		&	in_mcast_loop,
		0	,
		"Loopback multicast datagrams by default"
	)

◆ sysctl_ip_mcast_filters()

static int sysctl_ip_mcast_filters ( SYSCTL_HANDLER_ARGS )

static

Definition at line 2863 of file in_mcast.c.

References ims_get_mode(), ip_msource::ims_haddr, in_hosteq, in_mcast_maxgrpsrc, IN_MULTI_LIST_LOCK, IN_MULTI_LIST_UNLOCK, in_multi::inm_addr, in_multi::inm_srcs, in_multi::inm_st, in_multi::inm_st::iss_fmode, KTR_IGMPV3, and in_addr::s_addr.

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◆ SYSCTL_NODE() [1/2]

static SYSCTL_NODE	(	_net_inet_ip	,
		OID_AUTO	,
		mcast	,
		CTLFLAG_RW\|	CTLFLAG_MPSAFE,
		0	,
		"IPv4 multicast"
	)

static

◆ SYSCTL_NODE() [2/2]

static SYSCTL_NODE	(	_net_inet_ip_mcast	,
		OID_AUTO	,
		filters	,
		CTLFLAG_RD\|	CTLFLAG_MPSAFE,
		sysctl_ip_mcast_filters	,
		"Per-interface stack-wide source filters"
	)

static

◆ SYSCTL_ULONG() [1/2]

SYSCTL_ULONG	(	_net_inet_ip_mcast	,
		OID_AUTO	,
		maxgrpsrc	,
		CTLFLAG_RWTUN	,
		&	in_mcast_maxgrpsrc,
		0	,
		"Max source filters per group"
	)

◆ SYSCTL_ULONG() [2/2]

SYSCTL_ULONG	(	_net_inet_ip_mcast	,
		OID_AUTO	,
		maxsocksrc	,
		CTLFLAG_RWTUN	,
		&	in_mcast_maxsocksrc,
		0	,
		"Max source filters per socket"
	)

◆ TASKQUEUE_DEFINE_THREAD()

TASKQUEUE_DEFINE_THREAD ( inm_free )

Variable Documentation

◆ ifma_restart

int ifma_restart

Definition at line 116 of file in_mcast.c.

Referenced by igmp_fasttimo_vnet(), igmp_ifdetach(), in_purgemaddrs(), and inm_disconnect().

◆ in_mcast_loop

int in_mcast_loop = IP_DEFAULT_MULTICAST_LOOP

Definition at line 188 of file in_mcast.c.

Referenced by inp_findmoptions(), ip_output(), and send_packet().

◆ in_mcast_maxgrpsrc

u_long in_mcast_maxgrpsrc = IP_MAX_GROUP_SRC_FILTER

static

Definition at line 178 of file in_mcast.c.

Referenced by inm_get_source(), inm_record_source(), and sysctl_ip_mcast_filters().

◆ in_mcast_maxsocksrc

u_long in_mcast_maxsocksrc = IP_MAX_SOCK_SRC_FILTER

static

Definition at line 183 of file in_mcast.c.

Referenced by imf_get_source(), inp_get_source_filters(), and inp_set_source_filters().

◆ in_multi_free_mtx

struct mtx in_multi_free_mtx

Definition at line 110 of file in_mcast.c.

Referenced by inm_release_list_deferred(), and inm_release_task().

◆ in_multi_list_mtx

struct mtx in_multi_list_mtx

Definition at line 107 of file in_mcast.c.

◆ in_multi_sx

struct sx in_multi_sx

Definition at line 113 of file in_mcast.c.

◆ inm_free_list

struct in_multi_head inm_free_list = SLIST_HEAD_INITIALIZER()

static

Definition at line 226 of file in_mcast.c.

Referenced by inm_release_list_deferred(), and inm_release_task().

◆ inm_free_task

struct task inm_free_task = TASK_INITIALIZER(0, inm_release_task, NULL)

static

Definition at line 228 of file in_mcast.c.

Referenced by inm_release_list_deferred(), and inm_release_wait().

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ __SOCKUNION_DECLARED

◆ KTR_IGMPV3

Typedef Documentation

◆ sockunion_t

Function Documentation

◆ __FBSDID()

◆ imf_commit()

◆ imf_get_source()

◆ imf_graft()

◆ imf_init()

◆ imf_leave()

◆ imf_prune()

◆ imf_purge()

◆ imf_reap()

◆ imf_rollback()

◆ imo_match_group()

◆ imo_match_source()

◆ imo_multi_filter()

◆ ims_merge()

◆ in_getmulti()

◆ in_joingroup()

◆ in_joingroup_locked()

◆ in_leavegroup()

◆ in_leavegroup_locked()

◆ inm_clear_recorded()

◆ inm_commit()

◆ inm_disconnect()

◆ inm_get_source()

◆ inm_lookup()

◆ inm_lookup_locked()

◆ inm_merge()

◆ inm_print()

◆ inm_purge()

◆ inm_reap()

◆ inm_record_source()

◆ inm_release()

◆ inm_release_deferred()

◆ inm_release_list_deferred()

◆ inm_release_task()

◆ inm_release_wait()

◆ inp_block_unblock_source()

◆ inp_findmoptions()

◆ inp_freemoptions()

◆ inp_get_source_filters()

◆ inp_getmoptions()

◆ inp_join_group()

◆ inp_leave_group()

◆ inp_lookup_mcast_ifp()

◆ inp_set_multicast_if()

◆ inp_set_source_filters()

◆ inp_setmoptions()

◆ ip_mfilter_alloc()

◆ ip_mfilter_free()

◆ MALLOC_DEFINE() [1/4]

◆ MALLOC_DEFINE() [2/4]

◆ MALLOC_DEFINE() [3/4]

◆ MALLOC_DEFINE() [4/4]

◆ MTX_SYSINIT() [1/2]

◆ MTX_SYSINIT() [2/2]

◆ RB_GENERATE()

◆ SX_SYSINIT()

◆ SYSCTL_INT()

◆ sysctl_ip_mcast_filters()

◆ SYSCTL_NODE() [1/2]

◆ SYSCTL_NODE() [2/2]

◆ SYSCTL_ULONG() [1/2]

◆ SYSCTL_ULONG() [2/2]

◆ TASKQUEUE_DEFINE_THREAD()

Variable Documentation

◆ ifma_restart

◆ in_mcast_loop

◆ in_mcast_maxgrpsrc

◆ in_mcast_maxsocksrc

◆ in_multi_free_mtx