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e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
/* 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 <alan@lxorguk.ukuu.org.uk>
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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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/*
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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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