mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 21:38:32 +08:00
6c8991f415
ipv6_stub uses the ip6_dst_lookup function to allow other modules to
perform IPv6 lookups. However, this function skips the XFRM layer
entirely.
All users of ipv6_stub->ip6_dst_lookup use ip_route_output_flow (via the
ip_route_output_key and ip_route_output helpers) for their IPv4 lookups,
which calls xfrm_lookup_route(). This patch fixes this inconsistent
behavior by switching the stub to ip6_dst_lookup_flow, which also calls
xfrm_lookup_route().
This requires some changes in all the callers, as these two functions
take different arguments and have different return types.
Fixes: 5f81bd2e5d ("ipv6: export a stub for IPv6 symbols used by vxlan")
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/* 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>
|
|
|
|
/* 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_update_sernum)(struct net *net, struct fib6_info *rt);
|
|
int (*ip6_del_rt)(struct net *net, struct fib6_info *rt);
|
|
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);
|
|
struct neigh_table *nd_tbl;
|
|
};
|
|
extern const struct ipv6_stub *ipv6_stub __read_mostly;
|
|
|
|
/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
|
|
struct ipv6_bpf_stub {
|
|
int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len,
|
|
bool force_bind_address_no_port, bool with_lock);
|
|
struct sock *(*udp6_lib_lookup)(struct net *net,
|
|
const struct in6_addr *saddr, __be16 sport,
|
|
const struct in6_addr *daddr, __be16 dport,
|
|
int dif, int sdif, struct udp_table *tbl,
|
|
struct sk_buff *skb);
|
|
};
|
|
extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
|
|
|
|
#endif
|