Contributors: 26
	  
        
          | Author | 
          Tokens | 
          Token Proportion | 
          Commits | 
          Commit Proportion | 
        
	  
	  
        
        
          | Linus Torvalds (pre-git) | 
          264 | 
          37.45% | 
          25 | 
          37.88% | 
        
        
          | David L Stevens | 
          197 | 
          27.94% | 
          3 | 
          4.55% | 
        
        
          | Arnaldo Carvalho de Melo | 
          49 | 
          6.95% | 
          2 | 
          3.03% | 
        
        
          | Linus Lüssing | 
          42 | 
          5.96% | 
          3 | 
          4.55% | 
        
        
          | Eric Dumazet | 
          28 | 
          3.97% | 
          5 | 
          7.58% | 
        
        
          | Florian Fainelli | 
          26 | 
          3.69% | 
          1 | 
          1.52% | 
        
        
          | Herbert Xu | 
          18 | 
          2.55% | 
          2 | 
          3.03% | 
        
        
          | Al Viro | 
          11 | 
          1.56% | 
          5 | 
          7.58% | 
        
        
          | Hangbin Liu | 
          9 | 
          1.28% | 
          1 | 
          1.52% | 
        
        
          | Flavio Leitner | 
          8 | 
          1.13% | 
          1 | 
          1.52% | 
        
        
          | Martin KaFai Lau | 
          7 | 
          0.99% | 
          1 | 
          1.52% | 
        
        
          | Alexey Kuznetsov | 
          6 | 
          0.85% | 
          1 | 
          1.52% | 
        
        
          | Kees Cook | 
          5 | 
          0.71% | 
          1 | 
          1.52% | 
        
        
          | David S. Miller | 
          4 | 
          0.57% | 
          3 | 
          4.55% | 
        
        
          | Elena Reshetova | 
          4 | 
          0.57% | 
          1 | 
          1.52% | 
        
        
          | Moni Shoua | 
          4 | 
          0.57% | 
          1 | 
          1.52% | 
        
        
          | Tom Herbert | 
          4 | 
          0.57% | 
          1 | 
          1.52% | 
        
        
          | David Howells | 
          4 | 
          0.57% | 
          1 | 
          1.52% | 
        
        
          | Jakub Kiciński | 
          3 | 
          0.43% | 
          1 | 
          1.52% | 
        
        
          | David Ahern | 
          3 | 
          0.43% | 
          1 | 
          1.52% | 
        
        
          | Jones Desougi | 
          2 | 
          0.28% | 
          1 | 
          1.52% | 
        
        
          | Thomas Gleixner | 
          2 | 
          0.28% | 
          1 | 
          1.52% | 
        
        
          | Jaswinder Singh Rajput | 
          2 | 
          0.28% | 
          1 | 
          1.52% | 
        
        
          | Alexander Duyck | 
          1 | 
          0.14% | 
          1 | 
          1.52% | 
        
        
          | Gustavo A. R. Silva | 
          1 | 
          0.14% | 
          1 | 
          1.52% | 
        
        
          | Alexey Dobriyan | 
          1 | 
          0.14% | 
          1 | 
          1.52% | 
        
	  
	  
        
          | Total | 
          705 | 
           | 
          66 | 
           | 
	    
	  
    
 
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *	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
 */
#ifndef _LINUX_IGMP_H
#define _LINUX_IGMP_H
#include <linux/skbuff.h>
#include <linux/timer.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/refcount.h>
#include <linux/sockptr.h>
#include <uapi/linux/igmp.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);
}
struct ip_sf_socklist {
	unsigned int		sl_max;
	unsigned int		sl_count;
	struct rcu_head		rcu;
	__be32			sl_addr[] __counted_by(sl_max);
};
#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 __rcu *next_rcu;
	struct ip_mreqn		multi;
	unsigned int		sfmode;		/* MCAST_{INCLUDE,EXCLUDE} */
	struct ip_sf_socklist __rcu	*sflist;
	struct rcu_head		rcu;
};
struct ip_sf_list {
	struct ip_sf_list	*sf_next;
	unsigned long		sf_count[2];	/* include/exclude counts */
	__be32			sf_inaddr;
	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;
	unsigned int		sfmode;
	struct ip_sf_list	*sources;
	struct ip_sf_list	*tomb;
	unsigned long		sfcount[2];
	union {
		struct ip_mc_list *next;
		struct ip_mc_list __rcu *next_rcu;
	};
	struct ip_mc_list __rcu *next_hash;
	struct timer_list	timer;
	int			users;
	refcount_t		refcnt;
	spinlock_t		lock;
	char			tm_running;
	char			reporter;
	char			unsolicit_count;
	char			loaded;
	unsigned char		gsquery;	/* check source marks? */
	unsigned char		crcount;
	struct rcu_head		rcu;
};
/* 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)
static inline int ip_mc_may_pull(struct sk_buff *skb, unsigned int len)
{
	if (skb_transport_offset(skb) + ip_transport_len(skb) < len)
		return 0;
	return pskb_may_pull(skb, len);
}
extern int ip_check_mc_rcu(struct in_device *dev, __be32 mc_addr, __be32 src_addr, u8 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_join_group_ssm(struct sock *sk, struct ip_mreqn *imr,
				unsigned int mode);
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,
			sockptr_t optval, sockptr_t optlen);
extern int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
			sockptr_t optval, size_t offset);
extern int ip_mc_sf_allow(const struct sock *sk, __be32 local, __be32 rmt,
			  int dif, int sdif);
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, gfp_t gfp);
static inline void ip_mc_dec_group(struct in_device *in_dev, __be32 addr)
{
	return __ip_mc_dec_group(in_dev, addr, GFP_KERNEL);
}
extern void __ip_mc_inc_group(struct in_device *in_dev, __be32 addr,
			      gfp_t gfp);
extern void ip_mc_inc_group(struct in_device *in_dev, __be32 addr);
int ip_mc_check_igmp(struct sk_buff *skb);
#endif