* Linux NET3: Internet Group Management Protocol [IGMP]
*
* Authors:
- * Alan Cox <Alan.Cox@linux.org>
+ * 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/types.h>
#include <asm/byteorder.h>
/*
* Header in on cable format
*/
-struct igmphdr
-{
+struct igmphdr {
__u8 type;
__u8 code; /* For newer IGMP */
__sum16 csum;
#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
-{
+struct ip_sf_socklist {
unsigned int sl_max;
unsigned int sl_count;
+ struct rcu_head rcu;
__be32 sl_addr[0];
};
this list never used in fast path code
*/
-struct ip_mc_socklist
-{
+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 rcu_head rcu;
};
-struct ip_sf_list
-{
+struct ip_sf_list {
struct ip_sf_list *sf_next;
__be32 sf_inaddr;
unsigned long sf_count[2]; /* include/exclude counts */
unsigned char sf_crcount; /* retrans. left to send */
};
-struct ip_mc_list
-{
+struct ip_mc_list {
struct in_device *interface;
__be32 multiaddr;
struct ip_sf_list *sources;
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_mr_init(void);
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);