mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 17:29:05 +07:00
d94d9fee9f
This cleanup patch puts struct/union/enum opening braces,
in first line to ease grep games.
struct something
{
becomes :
struct something {
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
239 lines
6.4 KiB
C
239 lines
6.4 KiB
C
/*
|
|
* Linux NET3: Internet Group Management Protocol [IGMP]
|
|
*
|
|
* Authors:
|
|
* Alan Cox <alan@lxorguk.ukuu.org.uk>
|
|
*
|
|
* Extended to talk the BSD extended IGMP protocol of mrouted 3.6
|
|
*
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef _LINUX_IGMP_H
|
|
#define _LINUX_IGMP_H
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
/*
|
|
* IGMP protocol structures
|
|
*/
|
|
|
|
/*
|
|
* Header in on cable format
|
|
*/
|
|
|
|
struct igmphdr {
|
|
__u8 type;
|
|
__u8 code; /* For newer IGMP */
|
|
__sum16 csum;
|
|
__be32 group;
|
|
};
|
|
|
|
/* V3 group record types [grec_type] */
|
|
#define IGMPV3_MODE_IS_INCLUDE 1
|
|
#define IGMPV3_MODE_IS_EXCLUDE 2
|
|
#define IGMPV3_CHANGE_TO_INCLUDE 3
|
|
#define IGMPV3_CHANGE_TO_EXCLUDE 4
|
|
#define IGMPV3_ALLOW_NEW_SOURCES 5
|
|
#define IGMPV3_BLOCK_OLD_SOURCES 6
|
|
|
|
struct igmpv3_grec {
|
|
__u8 grec_type;
|
|
__u8 grec_auxwords;
|
|
__be16 grec_nsrcs;
|
|
__be32 grec_mca;
|
|
__be32 grec_src[0];
|
|
};
|
|
|
|
struct igmpv3_report {
|
|
__u8 type;
|
|
__u8 resv1;
|
|
__be16 csum;
|
|
__be16 resv2;
|
|
__be16 ngrec;
|
|
struct igmpv3_grec grec[0];
|
|
};
|
|
|
|
struct igmpv3_query {
|
|
__u8 type;
|
|
__u8 code;
|
|
__be16 csum;
|
|
__be32 group;
|
|
#if defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 qrv:3,
|
|
suppress:1,
|
|
resv:4;
|
|
#elif defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 resv:4,
|
|
suppress:1,
|
|
qrv:3;
|
|
#else
|
|
#error "Please fix <asm/byteorder.h>"
|
|
#endif
|
|
__u8 qqic;
|
|
__be16 nsrcs;
|
|
__be32 srcs[0];
|
|
};
|
|
|
|
#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* From RFC1112 */
|
|
#define IGMP_HOST_MEMBERSHIP_REPORT 0x12 /* Ditto */
|
|
#define IGMP_DVMRP 0x13 /* DVMRP routing */
|
|
#define IGMP_PIM 0x14 /* PIM routing */
|
|
#define IGMP_TRACE 0x15
|
|
#define IGMPV2_HOST_MEMBERSHIP_REPORT 0x16 /* V2 version of 0x11 */
|
|
#define IGMP_HOST_LEAVE_MESSAGE 0x17
|
|
#define IGMPV3_HOST_MEMBERSHIP_REPORT 0x22 /* V3 version of 0x11 */
|
|
|
|
#define IGMP_MTRACE_RESP 0x1e
|
|
#define IGMP_MTRACE 0x1f
|
|
|
|
|
|
/*
|
|
* Use the BSD names for these for compatibility
|
|
*/
|
|
|
|
#define IGMP_DELAYING_MEMBER 0x01
|
|
#define IGMP_IDLE_MEMBER 0x02
|
|
#define IGMP_LAZY_MEMBER 0x03
|
|
#define IGMP_SLEEPING_MEMBER 0x04
|
|
#define IGMP_AWAKENING_MEMBER 0x05
|
|
|
|
#define IGMP_MINLEN 8
|
|
|
|
#define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */
|
|
/* query (in seconds) */
|
|
|
|
#define IGMP_TIMER_SCALE 10 /* denotes that the igmphdr->timer field */
|
|
/* specifies time in 10th of seconds */
|
|
|
|
#define IGMP_AGE_THRESHOLD 400 /* If this host don't hear any IGMP V1 */
|
|
/* message in this period of time, */
|
|
/* revert to IGMP v2 router. */
|
|
|
|
#define IGMP_ALL_HOSTS htonl(0xE0000001L)
|
|
#define IGMP_ALL_ROUTER htonl(0xE0000002L)
|
|
#define IGMPV3_ALL_MCR htonl(0xE0000016L)
|
|
#define IGMP_LOCAL_GROUP htonl(0xE0000000L)
|
|
#define IGMP_LOCAL_GROUP_MASK htonl(0xFFFFFF00L)
|
|
|
|
/*
|
|
* struct for keeping the multicast list in
|
|
*/
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/skbuff.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/in.h>
|
|
|
|
static inline struct igmphdr *igmp_hdr(const struct sk_buff *skb)
|
|
{
|
|
return (struct igmphdr *)skb_transport_header(skb);
|
|
}
|
|
|
|
static inline struct igmpv3_report *
|
|
igmpv3_report_hdr(const struct sk_buff *skb)
|
|
{
|
|
return (struct igmpv3_report *)skb_transport_header(skb);
|
|
}
|
|
|
|
static inline struct igmpv3_query *
|
|
igmpv3_query_hdr(const struct sk_buff *skb)
|
|
{
|
|
return (struct igmpv3_query *)skb_transport_header(skb);
|
|
}
|
|
|
|
extern int sysctl_igmp_max_memberships;
|
|
extern int sysctl_igmp_max_msf;
|
|
|
|
struct ip_sf_socklist {
|
|
unsigned int sl_max;
|
|
unsigned int sl_count;
|
|
__be32 sl_addr[0];
|
|
};
|
|
|
|
#define IP_SFLSIZE(count) (sizeof(struct ip_sf_socklist) + \
|
|
(count) * sizeof(__be32))
|
|
|
|
#define IP_SFBLOCK 10 /* allocate this many at once */
|
|
|
|
/* ip_mc_socklist is real list now. Speed is not argument;
|
|
this list never used in fast path code
|
|
*/
|
|
|
|
struct ip_mc_socklist {
|
|
struct ip_mc_socklist *next;
|
|
struct ip_mreqn multi;
|
|
unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */
|
|
struct ip_sf_socklist *sflist;
|
|
};
|
|
|
|
struct ip_sf_list {
|
|
struct ip_sf_list *sf_next;
|
|
__be32 sf_inaddr;
|
|
unsigned long sf_count[2]; /* include/exclude counts */
|
|
unsigned char sf_gsresp; /* include in g & s response? */
|
|
unsigned char sf_oldin; /* change state */
|
|
unsigned char sf_crcount; /* retrans. left to send */
|
|
};
|
|
|
|
struct ip_mc_list {
|
|
struct in_device *interface;
|
|
__be32 multiaddr;
|
|
struct ip_sf_list *sources;
|
|
struct ip_sf_list *tomb;
|
|
unsigned int sfmode;
|
|
unsigned long sfcount[2];
|
|
struct ip_mc_list *next;
|
|
struct timer_list timer;
|
|
int users;
|
|
atomic_t refcnt;
|
|
spinlock_t lock;
|
|
char tm_running;
|
|
char reporter;
|
|
char unsolicit_count;
|
|
char loaded;
|
|
unsigned char gsquery; /* check source marks? */
|
|
unsigned char crcount;
|
|
};
|
|
|
|
/* V3 exponential field decoding */
|
|
#define IGMPV3_MASK(value, nb) ((nb)>=32 ? (value) : ((1<<(nb))-1) & (value))
|
|
#define IGMPV3_EXP(thresh, nbmant, nbexp, value) \
|
|
((value) < (thresh) ? (value) : \
|
|
((IGMPV3_MASK(value, nbmant) | (1<<(nbmant))) << \
|
|
(IGMPV3_MASK((value) >> (nbmant), nbexp) + (nbexp))))
|
|
|
|
#define IGMPV3_QQIC(value) IGMPV3_EXP(0x80, 4, 3, value)
|
|
#define IGMPV3_MRC(value) IGMPV3_EXP(0x80, 4, 3, value)
|
|
|
|
extern int ip_check_mc(struct in_device *dev, __be32 mc_addr, __be32 src_addr, u16 proto);
|
|
extern int igmp_rcv(struct sk_buff *);
|
|
extern int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr);
|
|
extern int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr);
|
|
extern void ip_mc_drop_socket(struct sock *sk);
|
|
extern int ip_mc_source(int add, int omode, struct sock *sk,
|
|
struct ip_mreq_source *mreqs, int ifindex);
|
|
extern int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf,int ifindex);
|
|
extern int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
|
|
struct ip_msfilter __user *optval, int __user *optlen);
|
|
extern int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
|
|
struct group_filter __user *optval, int __user *optlen);
|
|
extern int ip_mc_sf_allow(struct sock *sk, __be32 local, __be32 rmt, int dif);
|
|
extern void ip_mc_init_dev(struct in_device *);
|
|
extern void ip_mc_destroy_dev(struct in_device *);
|
|
extern void ip_mc_up(struct in_device *);
|
|
extern void ip_mc_down(struct in_device *);
|
|
extern void ip_mc_unmap(struct in_device *);
|
|
extern void ip_mc_remap(struct in_device *);
|
|
extern void ip_mc_dec_group(struct in_device *in_dev, __be32 addr);
|
|
extern void ip_mc_inc_group(struct in_device *in_dev, __be32 addr);
|
|
extern void ip_mc_rejoin_group(struct ip_mc_list *im);
|
|
|
|
#endif
|
|
#endif
|