igmp.h File Reference

IGMP protocol definitions. More...

#include <sys/types.h>
#include <dev/netbuf.h>
#include <net/if_var.h>

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Data Structures
struct	igmp
	IGMP packet structure. More...
struct	igmpv3
	IGMPv3 query format. More...
struct	igmp_grouprec
	IGMPv3 group record. More...
struct	igmp_report
	IGMPv3 report. More...
Defines
#define	IGMP_MINLEN   8
	Minimum IGMP packet length.
#define	IGMP_MEMBERSHIP_QUERY   0x11
	Membership query.
#define	IGMP_V1_MEMBERSHIP_REPORT   0x12
	Ver. 1 membership report.
#define	IGMP_V2_MEMBERSHIP_REPORT   0x16
	Ver. 2 membership report.
#define	IGMP_V3_MEMBERSHIP_REPORT   0x22
	Ver. 3 membership report.
#define	IGMP_V2_LEAVE_GROUP   0x17
	Leave-group message.
#define	IGMP_MAX_HOST_REPORT_DELAY   10
	Maximum delay for response query.
#define	IGMP_TIMER_SCALE   10
	Code field time scale.
#define	IGMP_EXCLUDE_LIST   1
	List identifiers.
#define	IGMP_INCLUDE_LIST   2
#define	IGMP_RECORDED_LIST   3
Typedefs
typedef struct igmp	IGMP
	IGMP packet type.
typedef struct igmp_report	IGMP_REPORT
Functions
void	NutIgmpInput (NUTDEVICE *dev, NETBUF *nb)
	Process incoming IGMP packets.
int	NutIgmpOutput (uint8_t type, uint32_t dest, NETBUF *nb)
	Send an IGMP datagram.
void	NutIgmpJoinGroup (NUTDEVICE *dev, uint32_t ip_addr)
void	NutIgmpLeaveGroup (NUTDEVICE *dev, uint32_t ip_addr)
IGMPv3 Report Types
#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.
IGMPv3 Report Type Flags
#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)

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Detailed Description

IGMP protocol definitions.

Definition in file igmp.h.