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130 lines
3.0 KiB
130 lines
3.0 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* Linux NET3: Internet Group Management Protocol [IGMP] |
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* |
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* Authors: |
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* Alan Cox <[email protected]> |
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* |
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* Extended to talk the BSD extended IGMP protocol of mrouted 3.6 |
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* |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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*/ |
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#ifndef _UAPI_LINUX_IGMP_H |
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#define _UAPI_LINUX_IGMP_H |
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#include <linux/types.h> |
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#include <asm/byteorder.h> |
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/* |
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* IGMP protocol structures |
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*/ |
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/* |
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* Header in on cable format |
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*/ |
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struct igmphdr { |
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__u8 type; |
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__u8 code; /* For newer IGMP */ |
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__sum16 csum; |
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__be32 group; |
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}; |
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/* V3 group record types [grec_type] */ |
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#define IGMPV3_MODE_IS_INCLUDE 1 |
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#define IGMPV3_MODE_IS_EXCLUDE 2 |
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#define IGMPV3_CHANGE_TO_INCLUDE 3 |
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#define IGMPV3_CHANGE_TO_EXCLUDE 4 |
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#define IGMPV3_ALLOW_NEW_SOURCES 5 |
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#define IGMPV3_BLOCK_OLD_SOURCES 6 |
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struct igmpv3_grec { |
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__u8 grec_type; |
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__u8 grec_auxwords; |
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__be16 grec_nsrcs; |
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__be32 grec_mca; |
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__be32 grec_src[0]; |
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}; |
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struct igmpv3_report { |
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__u8 type; |
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__u8 resv1; |
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__sum16 csum; |
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__be16 resv2; |
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__be16 ngrec; |
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struct igmpv3_grec grec[0]; |
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}; |
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struct igmpv3_query { |
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__u8 type; |
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__u8 code; |
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__sum16 csum; |
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__be32 group; |
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#if defined(__LITTLE_ENDIAN_BITFIELD) |
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__u8 qrv:3, |
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suppress:1, |
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resv:4; |
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#elif defined(__BIG_ENDIAN_BITFIELD) |
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__u8 resv:4, |
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suppress:1, |
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qrv:3; |
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#else |
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#error "Please fix <asm/byteorder.h>" |
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#endif |
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__u8 qqic; |
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__be16 nsrcs; |
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__be32 srcs[0]; |
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}; |
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#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* From RFC1112 */ |
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#define IGMP_HOST_MEMBERSHIP_REPORT 0x12 /* Ditto */ |
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#define IGMP_DVMRP 0x13 /* DVMRP routing */ |
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#define IGMP_PIM 0x14 /* PIM routing */ |
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#define IGMP_TRACE 0x15 |
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#define IGMPV2_HOST_MEMBERSHIP_REPORT 0x16 /* V2 version of 0x12 */ |
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#define IGMP_HOST_LEAVE_MESSAGE 0x17 |
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#define IGMPV3_HOST_MEMBERSHIP_REPORT 0x22 /* V3 version of 0x12 */ |
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#define IGMP_MTRACE_RESP 0x1e |
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#define IGMP_MTRACE 0x1f |
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#define IGMP_MRDISC_ADV 0x30 /* From RFC4286 */ |
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/* |
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* Use the BSD names for these for compatibility |
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*/ |
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#define IGMP_DELAYING_MEMBER 0x01 |
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#define IGMP_IDLE_MEMBER 0x02 |
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#define IGMP_LAZY_MEMBER 0x03 |
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#define IGMP_SLEEPING_MEMBER 0x04 |
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#define IGMP_AWAKENING_MEMBER 0x05 |
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#define IGMP_MINLEN 8 |
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#define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */ |
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/* query (in seconds) */ |
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#define IGMP_TIMER_SCALE 10 /* denotes that the igmphdr->timer field */ |
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/* specifies time in 10th of seconds */ |
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#define IGMP_AGE_THRESHOLD 400 /* If this host don't hear any IGMP V1 */ |
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/* message in this period of time, */ |
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/* revert to IGMP v2 router. */ |
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#define IGMP_ALL_HOSTS htonl(0xE0000001L) |
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#define IGMP_ALL_ROUTER htonl(0xE0000002L) |
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#define IGMPV3_ALL_MCR htonl(0xE0000016L) |
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#define IGMP_LOCAL_GROUP htonl(0xE0000000L) |
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#define IGMP_LOCAL_GROUP_MASK htonl(0xFFFFFF00L) |
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/* |
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* struct for keeping the multicast list in |
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*/ |
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#endif /* _UAPI_LINUX_IGMP_H */
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