94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
/*
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* Fundamental constants relating to IGMP Protocol
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*
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* Copyright (C) 2024 Synaptics Incorporated. All rights reserved.
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*
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* This software is licensed to you under the terms of the
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* GNU General Public License version 2 (the "GPL") with Broadcom special exception.
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*
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* INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIDED "AS-IS," AND SYNAPTICS
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* EXPRESSLY DISCLAIMS ALL EXPRESS AND IMPLIED WARRANTIES, INCLUDING ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
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* AND ANY WARRANTIES OF NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHTS.
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* IN NO EVENT SHALL SYNAPTICS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OF THE INFORMATION CONTAINED IN THIS DOCUMENT, HOWEVER CAUSED
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* AND BASED ON ANY THEORY OF LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, AND EVEN IF SYNAPTICS WAS ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE. IF A TRIBUNAL OF COMPETENT JURISDICTION
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* DOES NOT PERMIT THE DISCLAIMER OF DIRECT DAMAGES OR ANY OTHER DAMAGES,
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* SYNAPTICS' TOTAL CUMULATIVE LIABILITY TO ANY PARTY SHALL NOT
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* EXCEED ONE HUNDRED U.S. DOLLARS
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*
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* Copyright (C) 2024, Broadcom.
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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*
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* <<Broadcom-WL-IPTag/Dual:>>
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*/
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#ifndef _bcmigmp_h_
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#define _bcmigmp_h_
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#ifndef _TYPEDEFS_H_
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#include <typedefs.h>
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#endif
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/* This marks the start of a packed structure section. */
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#include <packed_section_start.h>
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#define IGMP_V2 2u
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#define IGMP_V3 3u
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/* These fields are stored in network order */
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BWL_PRE_PACKED_STRUCT struct igmpv2_hdr {
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uint8 type; /* type */
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uint8 max_resp_time; /* time */
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uint16 chksum; /* checksum */
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uint8 group_addr[IPV4_ADDR_LEN]; /* group address */
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} BWL_POST_PACKED_STRUCT;
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/* these fields are stored in network order */
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BWL_PRE_PACKED_STRUCT struct igmpv3_hdr {
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uint8 type; /* type */
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uint8 rsvd_1; /* reserved */
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uint16 chksum; /* checksum */
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uint16 rsvd_2; /* reserved */
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uint16 num_groups; /* number of groups */
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uint8 data[]; /* data */
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} BWL_POST_PACKED_STRUCT;
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#define IGMPV3_MODE_IS_INCLUDE 1u
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#define IGMPV3_MODE_IS_EXCLUDE 2u
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#define IGMPV3_CHANGE_TO_INCLUDE_MODE 3u
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#define IGMPV3_CHANGE_TO_EXCLUDE_MODE 4u
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#define IGMPV3_ALLOW_NEW_SOURCES 5u
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#define IGMPV3_BLOCK_OLD_SOURCES 6u
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/* these fields are stored in network order */
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BWL_PRE_PACKED_STRUCT struct igmpv3_group {
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uint8 record_type; /* Record Type */
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uint8 aux_data_len; /* Aux Data Len */
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uint16 number_sources; /* Number of Sources */
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uint8 group_addr[IPV4_ADDR_LEN]; /* group address */
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uint8 data[]; /* data */
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} BWL_POST_PACKED_STRUCT;
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/* This marks the end of a packed structure section. */
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#include <packed_section_end.h>
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#endif /* #ifndef _bcmigmp_h_ */
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