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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_MROUTE6_H
#define __LINUX_MROUTE6_H
#include <linux/pim.h>
#include <linux/skbuff.h> /* for struct sk_buff_head */
#include <net/net_namespace.h>
#include <uapi/linux/mroute6.h>
#include <linux/mroute_base.h>
#include <linux/sockptr.h>
#include <net/fib_rules.h>
#ifdef CONFIG_IPV6_MROUTE
static inline int ip6_mroute_opt(int opt)
{
return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
}
#else
static inline int ip6_mroute_opt(int opt)
{
return 0;
}
#endif
struct sock;
#ifdef CONFIG_IPV6_MROUTE
extern int ip6_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int);
extern int ip6_mroute_getsockopt(struct sock *, int, sockptr_t, sockptr_t);
extern int ip6_mr_input(struct sk_buff *skb);
extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
extern int ip6_mr_init(void);
extern void ip6_mr_cleanup(void);
int ip6mr_ioctl(struct sock *sk, int cmd, void *arg);
#else
static inline int ip6_mroute_setsockopt(struct sock *sock, int optname,
sockptr_t optval, unsigned int optlen)
{
return -ENOPROTOOPT;
}
static inline
int ip6_mroute_getsockopt(struct sock *sock,
int optname, sockptr_t optval, sockptr_t optlen)
{
return -ENOPROTOOPT;
}
static inline
int ip6mr_ioctl(struct sock *sk, int cmd, void *arg)
{
return -ENOIOCTLCMD;
}
static inline int ip6_mr_init(void)
{
return 0;
}
static inline void ip6_mr_cleanup(void)
{
return;
}
#endif
#ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
bool ip6mr_rule_default(const struct fib_rule *rule);
#else
static inline bool ip6mr_rule_default(const struct fib_rule *rule)
{
return true;
}
#endif
#define VIFF_STATIC 0x8000
struct mfc6_cache_cmp_arg {
struct in6_addr mf6c_mcastgrp;
struct in6_addr mf6c_origin;
};
struct mfc6_cache {
struct mr_mfc _c;
union {
struct {
struct in6_addr mf6c_mcastgrp;
struct in6_addr mf6c_origin;
};
struct mfc6_cache_cmp_arg cmparg;
};
};
#define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */
struct rtmsg;
extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
struct rtmsg *rtm, u32 portid);
#ifdef CONFIG_IPV6_MROUTE
bool mroute6_is_socket(struct net *net, struct sk_buff *skb);
extern int ip6mr_sk_done(struct sock *sk);
static inline int ip6mr_sk_ioctl(struct sock *sk, unsigned int cmd,
void __user *arg)
{
switch (cmd) {
/* These userspace buffers will be consumed by ip6mr_ioctl() */
case SIOCGETMIFCNT_IN6: {
struct sioc_mif_req6 buffer;
return sock_ioctl_inout(sk, cmd, arg, &buffer,
sizeof(buffer));
}
case SIOCGETSGCNT_IN6: {
struct sioc_sg_req6 buffer;
return sock_ioctl_inout(sk, cmd, arg, &buffer,
sizeof(buffer));
}
}
return 1;
}
#else
static inline bool mroute6_is_socket(struct net *net, struct sk_buff *skb)
{
return false;
}
static inline int ip6mr_sk_done(struct sock *sk)
{
return 0;
}
static inline int ip6mr_sk_ioctl(struct sock *sk, unsigned int cmd,
void __user *arg)
{
return 1;
}
#endif
#endif
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