{
}
#endif
-void fib6_update_sernum_stub(struct net *net, struct fib6_info *f6i);
void fib6_metric_set(struct fib6_info *f6i, int metric, u32 val);
static inline bool fib6_metric_locked(struct fib6_info *f6i, int metric)
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _IPV6_STUBS_H
-#define _IPV6_STUBS_H
-
-#include <linux/in6.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <net/dst.h>
-#include <net/flow.h>
-#include <net/neighbour.h>
-#include <net/sock.h>
-#include <net/ipv6.h>
-
-/* structs from net/ip6_fib.h */
-struct fib6_info;
-struct fib6_nh;
-struct fib6_config;
-struct fib6_result;
-
-/* This is ugly, ideally these symbols should be built
- * into the core kernel.
- */
-struct ipv6_stub {
- int (*ipv6_sock_mc_join)(struct sock *sk, int ifindex,
- const struct in6_addr *addr);
- int (*ipv6_sock_mc_drop)(struct sock *sk, int ifindex,
- const struct in6_addr *addr);
- struct dst_entry *(*ipv6_dst_lookup_flow)(struct net *net,
- const struct sock *sk,
- struct flowi6 *fl6,
- const struct in6_addr *final_dst);
- int (*ipv6_route_input)(struct sk_buff *skb);
-
- struct fib6_table *(*fib6_get_table)(struct net *net, u32 id);
- int (*fib6_lookup)(struct net *net, int oif, struct flowi6 *fl6,
- struct fib6_result *res, int flags);
- int (*fib6_table_lookup)(struct net *net, struct fib6_table *table,
- int oif, struct flowi6 *fl6,
- struct fib6_result *res, int flags);
- void (*fib6_select_path)(const struct net *net, struct fib6_result *res,
- struct flowi6 *fl6, int oif, bool oif_match,
- const struct sk_buff *skb, int strict);
- u32 (*ip6_mtu_from_fib6)(const struct fib6_result *res,
- const struct in6_addr *daddr,
- const struct in6_addr *saddr);
-
- int (*fib6_nh_init)(struct net *net, struct fib6_nh *fib6_nh,
- struct fib6_config *cfg, gfp_t gfp_flags,
- struct netlink_ext_ack *extack);
- void (*fib6_nh_release)(struct fib6_nh *fib6_nh);
- void (*fib6_nh_release_dsts)(struct fib6_nh *fib6_nh);
- void (*fib6_update_sernum)(struct net *net, struct fib6_info *rt);
- int (*ip6_del_rt)(struct net *net, struct fib6_info *rt, bool skip_notify);
- void (*fib6_rt_update)(struct net *net, struct fib6_info *rt,
- struct nl_info *info);
-
- void (*udpv6_encap_enable)(void);
- void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr,
- const struct in6_addr *solicited_addr,
- bool router, bool solicited, bool override, bool inc_opt);
-#if IS_ENABLED(CONFIG_XFRM)
- void (*xfrm6_local_rxpmtu)(struct sk_buff *skb, u32 mtu);
- int (*xfrm6_udp_encap_rcv)(struct sock *sk, struct sk_buff *skb);
- struct sk_buff *(*xfrm6_gro_udp_encap_rcv)(struct sock *sk,
- struct list_head *head,
- struct sk_buff *skb);
- int (*xfrm6_rcv_encap)(struct sk_buff *skb, int nexthdr, __be32 spi,
- int encap_type);
-#endif
- struct neigh_table *nd_tbl;
-
- int (*ipv6_fragment)(struct net *net, struct sock *sk, struct sk_buff *skb,
- int (*output)(struct net *, struct sock *, struct sk_buff *));
- struct net_device *(*ipv6_dev_find)(struct net *net, const struct in6_addr *addr,
- struct net_device *dev);
- int (*ip6_xmit)(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
- __u32 mark, struct ipv6_txoptions *opt, int tclass, u32 priority);
-};
-extern const struct ipv6_stub *ipv6_stub __read_mostly;
-#endif
#ifndef _NDISC_H
#define _NDISC_H
-#include <net/ipv6_stubs.h>
-
/*
* ICMP codes for neighbour discovery messages
*/
return ___neigh_lookup_noref(&nd_tbl, neigh_key_eq128, ndisc_hashfn, pkey, dev);
}
-static inline
-struct neighbour *__ipv6_neigh_lookup_noref_stub(struct net_device *dev,
- const void *pkey)
-{
- return ___neigh_lookup_noref(ipv6_stub->nd_tbl, neigh_key_eq128,
- ndisc_hashfn, pkey, dev);
-}
-
static inline struct neighbour *__ipv6_neigh_lookup(struct net_device *dev, const void *pkey)
{
struct neighbour *n;
rcu_read_unlock();
}
-static inline void __ipv6_confirm_neigh_stub(struct net_device *dev,
- const void *pkey)
-{
- struct neighbour *n;
-
- rcu_read_lock();
- n = __ipv6_neigh_lookup_noref_stub(dev, pkey);
- neigh_confirm(n);
- rcu_read_unlock();
-}
-
-/* uses ipv6_stub and is meant for use outside of IPv6 core */
static inline struct neighbour *ip_neigh_gw6(struct net_device *dev,
const void *addr)
{
#if IS_ENABLED(CONFIG_IPV6)
struct neighbour *neigh;
- neigh = __ipv6_neigh_lookup_noref_stub(dev, addr);
+ neigh = __ipv6_neigh_lookup_noref(dev, addr);
if (unlikely(!neigh))
neigh = __neigh_create(&nd_tbl, addr, dev, false);
void ndisc_send_rs(struct net_device *dev,
const struct in6_addr *saddr, const struct in6_addr *daddr);
+
void ndisc_send_na(struct net_device *dev, const struct in6_addr *daddr,
const struct in6_addr *solicited_addr,
bool router, bool solicited, bool override, bool inc_opt);
#if IS_ENABLED(CONFIG_IPV6)
#include <net/ipv6.h>
-#include <net/ipv6_stubs.h>
#endif
#define UDP_TUNNEL_PARTIAL_FEATURES NETIF_F_GSO_ENCAP_ALL
#include <linux/export.h>
#include <net/ipv6.h>
-#include <net/ipv6_stubs.h>
#include <net/addrconf.h>
#include <net/ip.h>
}
EXPORT_SYMBOL(inet6addr_validator_notifier_call_chain);
-static struct dst_entry *eafnosupport_ipv6_dst_lookup_flow(struct net *net,
- const struct sock *sk,
- struct flowi6 *fl6,
- const struct in6_addr *final_dst)
-{
- return ERR_PTR(-EAFNOSUPPORT);
-}
-
-static int eafnosupport_ipv6_route_input(struct sk_buff *skb)
-{
- return -EAFNOSUPPORT;
-}
-
-static struct fib6_table *eafnosupport_fib6_get_table(struct net *net, u32 id)
-{
- return NULL;
-}
-
-static int
-eafnosupport_fib6_table_lookup(struct net *net, struct fib6_table *table,
- int oif, struct flowi6 *fl6,
- struct fib6_result *res, int flags)
-{
- return -EAFNOSUPPORT;
-}
-
-static int
-eafnosupport_fib6_lookup(struct net *net, int oif, struct flowi6 *fl6,
- struct fib6_result *res, int flags)
-{
- return -EAFNOSUPPORT;
-}
-
-static void
-eafnosupport_fib6_select_path(const struct net *net, struct fib6_result *res,
- struct flowi6 *fl6, int oif, bool have_oif_match,
- const struct sk_buff *skb, int strict)
-{
-}
-
-static u32
-eafnosupport_ip6_mtu_from_fib6(const struct fib6_result *res,
- const struct in6_addr *daddr,
- const struct in6_addr *saddr)
-{
- return 0;
-}
-
-static int eafnosupport_fib6_nh_init(struct net *net, struct fib6_nh *fib6_nh,
- struct fib6_config *cfg, gfp_t gfp_flags,
- struct netlink_ext_ack *extack)
-{
- NL_SET_ERR_MSG(extack, "IPv6 support not enabled in kernel");
- return -EAFNOSUPPORT;
-}
-
-static int eafnosupport_ip6_del_rt(struct net *net, struct fib6_info *rt,
- bool skip_notify)
-{
- return -EAFNOSUPPORT;
-}
-
-static int eafnosupport_ipv6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
- int (*output)(struct net *, struct sock *, struct sk_buff *))
-{
- kfree_skb(skb);
- return -EAFNOSUPPORT;
-}
-
-static struct net_device *eafnosupport_ipv6_dev_find(struct net *net, const struct in6_addr *addr,
- struct net_device *dev)
-{
- return ERR_PTR(-EAFNOSUPPORT);
-}
-
-const struct ipv6_stub *ipv6_stub __read_mostly = &(struct ipv6_stub) {
- .ipv6_dst_lookup_flow = eafnosupport_ipv6_dst_lookup_flow,
- .ipv6_route_input = eafnosupport_ipv6_route_input,
- .fib6_get_table = eafnosupport_fib6_get_table,
- .fib6_table_lookup = eafnosupport_fib6_table_lookup,
- .fib6_lookup = eafnosupport_fib6_lookup,
- .fib6_select_path = eafnosupport_fib6_select_path,
- .ip6_mtu_from_fib6 = eafnosupport_ip6_mtu_from_fib6,
- .fib6_nh_init = eafnosupport_fib6_nh_init,
- .ip6_del_rt = eafnosupport_ip6_del_rt,
- .ipv6_fragment = eafnosupport_ipv6_fragment,
- .ipv6_dev_find = eafnosupport_ipv6_dev_find,
-};
-EXPORT_SYMBOL_GPL(ipv6_stub);
-
/* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */
const struct in6_addr in6addr_loopback __aligned(BITS_PER_LONG/8)
= IN6ADDR_LOOPBACK_INIT;
#include <net/transp_v6.h>
#include <net/ip6_route.h>
#include <net/addrconf.h>
-#include <net/ipv6_stubs.h>
#include <net/ndisc.h>
#ifdef CONFIG_IPV6_TUNNEL
#include <net/ip6_tunnel.h>
.exit = inet6_net_exit,
};
-static int ipv6_route_input(struct sk_buff *skb)
-{
- ip6_route_input(skb);
- return skb_dst(skb)->error;
-}
-
-static const struct ipv6_stub ipv6_stub_impl = {
- .ipv6_sock_mc_join = ipv6_sock_mc_join,
- .ipv6_sock_mc_drop = ipv6_sock_mc_drop,
- .ipv6_dst_lookup_flow = ip6_dst_lookup_flow,
- .ipv6_route_input = ipv6_route_input,
- .fib6_get_table = fib6_get_table,
- .fib6_table_lookup = fib6_table_lookup,
- .fib6_lookup = fib6_lookup,
- .fib6_select_path = fib6_select_path,
- .ip6_mtu_from_fib6 = ip6_mtu_from_fib6,
- .fib6_nh_init = fib6_nh_init,
- .fib6_nh_release = fib6_nh_release,
- .fib6_nh_release_dsts = fib6_nh_release_dsts,
- .fib6_update_sernum = fib6_update_sernum_stub,
- .fib6_rt_update = fib6_rt_update,
- .ip6_del_rt = ip6_del_rt,
- .udpv6_encap_enable = udpv6_encap_enable,
- .ndisc_send_na = ndisc_send_na,
-#if IS_ENABLED(CONFIG_XFRM)
- .xfrm6_local_rxpmtu = xfrm6_local_rxpmtu,
- .xfrm6_udp_encap_rcv = xfrm6_udp_encap_rcv,
- .xfrm6_gro_udp_encap_rcv = xfrm6_gro_udp_encap_rcv,
- .xfrm6_rcv_encap = xfrm6_rcv_encap,
-#endif
- .nd_tbl = &nd_tbl,
- .ipv6_fragment = ip6_fragment,
- .ipv6_dev_find = ipv6_dev_find,
- .ip6_xmit = ip6_xmit,
-};
-
static int __init inet6_init(void)
{
struct list_head *r;
goto sysctl_fail;
#endif
- /* ensure that ipv6 stubs are visible only after ipv6 is ready */
- wmb();
- ipv6_stub = &ipv6_stub_impl;
out:
return err;
__fib6_update_sernum_upto_root(rt, fib6_new_sernum(net));
}
-/* allow ipv4 to update sernum via ipv6_stub */
-void fib6_update_sernum_stub(struct net *net, struct fib6_info *f6i)
-{
- spin_lock_bh(&f6i->fib6_table->tb6_lock);
- fib6_update_sernum_upto_root(net, f6i);
- spin_unlock_bh(&f6i->fib6_table->tb6_lock);
-}
-
/*
* Add routing information to the routing tree.
* <destination addr>/<source addr>
fl6.fl6_dport = dport;
fl6.flowlabel = ip6_make_flowinfo(dsfield, key->label);
- dst = ipv6_stub->ipv6_dst_lookup_flow(net, sock->sk, &fl6,
- NULL);
+ dst = ip6_dst_lookup_flow(net, sock->sk, &fl6, NULL);
if (IS_ERR(dst)) {
netdev_dbg(dev, "no route to %pI6\n", &fl6.daddr);
return ERR_PTR(-ENETUNREACH);
projects / thirdparty / linux.git / commitdiff
