75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
|
|
* Fundamental constants relating to IGMP Protocol
|
|
*
|
|
* Copyright (C) 2022, Broadcom.
|
|
*
|
|
* Unless you and Broadcom execute a separate written software license
|
|
* agreement governing use of this software, this software is licensed to you
|
|
* under the terms of the GNU General Public License version 2 (the "GPL"),
|
|
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
|
|
* following added to such license:
|
|
*
|
|
* As a special exception, the copyright holders of this software give you
|
|
* permission to link this software with independent modules, and to copy and
|
|
* distribute the resulting executable under terms of your choice, provided that
|
|
* you also meet, for each linked independent module, the terms and conditions of
|
|
* the license of that module. An independent module is a module which is not
|
|
* derived from this software. The special exception does not apply to any
|
|
* modifications of the software.
|
|
*
|
|
*
|
|
* <<Broadcom-WL-IPTag/Dual:>>
|
|
*/
|
|
|
|
#ifndef _bcmigmp_h_
|
|
#define _bcmigmp_h_
|
|
|
|
#ifndef _TYPEDEFS_H_
|
|
#include <typedefs.h>
|
|
#endif
|
|
|
|
/* This marks the start of a packed structure section. */
|
|
#include <packed_section_start.h>
|
|
|
|
#define IGMP_V2 2u
|
|
#define IGMP_V3 3u
|
|
|
|
/* These fields are stored in network order */
|
|
BWL_PRE_PACKED_STRUCT struct igmpv2_hdr {
|
|
uint8 type; /* type */
|
|
uint8 max_resp_time; /* time */
|
|
uint16 chksum; /* checksum */
|
|
uint8 group_addr[IPV4_ADDR_LEN]; /* group address */
|
|
} BWL_POST_PACKED_STRUCT;
|
|
|
|
/* these fields are stored in network order */
|
|
BWL_PRE_PACKED_STRUCT struct igmpv3_hdr {
|
|
uint8 type; /* type */
|
|
uint8 rsvd_1; /* reserved */
|
|
uint16 chksum; /* checksum */
|
|
uint16 rsvd_2; /* reserved */
|
|
uint16 num_groups; /* number of groups */
|
|
uint8 data[]; /* data */
|
|
} BWL_POST_PACKED_STRUCT;
|
|
|
|
#define IGMPV3_MODE_IS_INCLUDE 1u
|
|
#define IGMPV3_MODE_IS_EXCLUDE 2u
|
|
#define IGMPV3_CHANGE_TO_INCLUDE_MODE 3u
|
|
#define IGMPV3_CHANGE_TO_EXCLUDE_MODE 4u
|
|
#define IGMPV3_ALLOW_NEW_SOURCES 5u
|
|
#define IGMPV3_BLOCK_OLD_SOURCES 6u
|
|
|
|
/* these fields are stored in network order */
|
|
BWL_PRE_PACKED_STRUCT struct igmpv3_group {
|
|
uint8 record_type; /* Record Type */
|
|
uint8 aux_data_len; /* Aux Data Len */
|
|
uint16 number_sources; /* Number of Sources */
|
|
uint8 group_addr[IPV4_ADDR_LEN]; /* group address */
|
|
uint8 data[]; /* data */
|
|
} BWL_POST_PACKED_STRUCT;
|
|
|
|
/* This marks the end of a packed structure section. */
|
|
#include <packed_section_end.h>
|
|
|
|
#endif /* #ifndef _bcmigmp_h_ */
|