13616d08bSDavid Ahern /* SPDX-License-Identifier: GPL-2.0 */ 23616d08bSDavid Ahern #ifndef _IPV6_STUBS_H 33616d08bSDavid Ahern #define _IPV6_STUBS_H 43616d08bSDavid Ahern 53616d08bSDavid Ahern #include <linux/in6.h> 63616d08bSDavid Ahern #include <linux/netdevice.h> 73616d08bSDavid Ahern #include <linux/skbuff.h> 83616d08bSDavid Ahern #include <net/dst.h> 93616d08bSDavid Ahern #include <net/flow.h> 103616d08bSDavid Ahern #include <net/neighbour.h> 113616d08bSDavid Ahern #include <net/sock.h> 123616d08bSDavid Ahern 133616d08bSDavid Ahern /* structs from net/ip6_fib.h */ 143616d08bSDavid Ahern struct fib6_info; 151aefd3deSDavid Ahern struct fib6_nh; 161aefd3deSDavid Ahern struct fib6_config; 17b1d40991SDavid Ahern struct fib6_result; 183616d08bSDavid Ahern 193616d08bSDavid Ahern /* This is ugly, ideally these symbols should be built 203616d08bSDavid Ahern * into the core kernel. 213616d08bSDavid Ahern */ 223616d08bSDavid Ahern struct ipv6_stub { 233616d08bSDavid Ahern int (*ipv6_sock_mc_join)(struct sock *sk, int ifindex, 243616d08bSDavid Ahern const struct in6_addr *addr); 253616d08bSDavid Ahern int (*ipv6_sock_mc_drop)(struct sock *sk, int ifindex, 263616d08bSDavid Ahern const struct in6_addr *addr); 276c8991f4SSabrina Dubroca struct dst_entry *(*ipv6_dst_lookup_flow)(struct net *net, 286c8991f4SSabrina Dubroca const struct sock *sk, 296c8991f4SSabrina Dubroca struct flowi6 *fl6, 306c8991f4SSabrina Dubroca const struct in6_addr *final_dst); 313616d08bSDavid Ahern int (*ipv6_route_input)(struct sk_buff *skb); 323616d08bSDavid Ahern 333616d08bSDavid Ahern struct fib6_table *(*fib6_get_table)(struct net *net, u32 id); 34effda4ddSDavid Ahern int (*fib6_lookup)(struct net *net, int oif, struct flowi6 *fl6, 35effda4ddSDavid Ahern struct fib6_result *res, int flags); 36effda4ddSDavid Ahern int (*fib6_table_lookup)(struct net *net, struct fib6_table *table, 373616d08bSDavid Ahern int oif, struct flowi6 *fl6, 38effda4ddSDavid Ahern struct fib6_result *res, int flags); 39b1d40991SDavid Ahern void (*fib6_select_path)(const struct net *net, struct fib6_result *res, 40b1d40991SDavid Ahern struct flowi6 *fl6, int oif, bool oif_match, 41b1d40991SDavid Ahern const struct sk_buff *skb, int strict); 42b748f260SDavid Ahern u32 (*ip6_mtu_from_fib6)(const struct fib6_result *res, 43b748f260SDavid Ahern const struct in6_addr *daddr, 44b748f260SDavid Ahern const struct in6_addr *saddr); 453616d08bSDavid Ahern 461aefd3deSDavid Ahern int (*fib6_nh_init)(struct net *net, struct fib6_nh *fib6_nh, 471aefd3deSDavid Ahern struct fib6_config *cfg, gfp_t gfp_flags, 481aefd3deSDavid Ahern struct netlink_ext_ack *extack); 491aefd3deSDavid Ahern void (*fib6_nh_release)(struct fib6_nh *fib6_nh); 508837cbbfSNikolay Aleksandrov void (*fib6_nh_release_dsts)(struct fib6_nh *fib6_nh); 51cdaa16a4SDavid Ahern void (*fib6_update_sernum)(struct net *net, struct fib6_info *rt); 5211dd74b3SRoopa Prabhu int (*ip6_del_rt)(struct net *net, struct fib6_info *rt, bool skip_notify); 5319a3b7eeSDavid Ahern void (*fib6_rt_update)(struct net *net, struct fib6_info *rt, 5419a3b7eeSDavid Ahern struct nl_info *info); 5519a3b7eeSDavid Ahern 563616d08bSDavid Ahern void (*udpv6_encap_enable)(void); 573616d08bSDavid Ahern void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr, 583616d08bSDavid Ahern const struct in6_addr *solicited_addr, 593616d08bSDavid Ahern bool router, bool solicited, bool override, bool inc_opt); 600146dca7SSabrina Dubroca #if IS_ENABLED(CONFIG_XFRM) 613e50ddd8SFlorian Westphal void (*xfrm6_local_rxpmtu)(struct sk_buff *skb, u32 mtu); 620146dca7SSabrina Dubroca int (*xfrm6_udp_encap_rcv)(struct sock *sk, struct sk_buff *skb); 6326333c37SSabrina Dubroca int (*xfrm6_rcv_encap)(struct sk_buff *skb, int nexthdr, __be32 spi, 6426333c37SSabrina Dubroca int encap_type); 650146dca7SSabrina Dubroca #endif 663616d08bSDavid Ahern struct neigh_table *nd_tbl; 671d97898bSwenxu 681d97898bSwenxu int (*ipv6_fragment)(struct net *net, struct sock *sk, struct sk_buff *skb, 691d97898bSwenxu int (*output)(struct net *, struct sock *, struct sk_buff *)); 70504a4011SAndreas Roeseler struct net_device *(*ipv6_dev_find)(struct net *net, const struct in6_addr *addr, 71504a4011SAndreas Roeseler struct net_device *dev); 723616d08bSDavid Ahern }; 733616d08bSDavid Ahern extern const struct ipv6_stub *ipv6_stub __read_mostly; 743616d08bSDavid Ahern 753616d08bSDavid Ahern /* A stub used by bpf helpers. Similarly ugly as ipv6_stub */ 763616d08bSDavid Ahern struct ipv6_bpf_stub { 773616d08bSDavid Ahern int (*inet6_bind)(struct sock *sk, struct sockaddr *uaddr, int addr_len, 78cb0721c7SStanislav Fomichev u32 flags); 793616d08bSDavid Ahern struct sock *(*udp6_lib_lookup)(struct net *net, 803616d08bSDavid Ahern const struct in6_addr *saddr, __be16 sport, 813616d08bSDavid Ahern const struct in6_addr *daddr, __be16 dport, 823616d08bSDavid Ahern int dif, int sdif, struct udp_table *tbl, 833616d08bSDavid Ahern struct sk_buff *skb); 8475b64b68SMartin KaFai Lau int (*ipv6_setsockopt)(struct sock *sk, int level, int optname, 8575b64b68SMartin KaFai Lau sockptr_t optval, unsigned int optlen); 8638566ec0SMartin KaFai Lau int (*ipv6_getsockopt)(struct sock *sk, int level, int optname, 8738566ec0SMartin KaFai Lau sockptr_t optval, sockptr_t optlen); 88*b96f500dSMartynas Pumputis int (*ipv6_dev_get_saddr)(struct net *net, 89*b96f500dSMartynas Pumputis const struct net_device *dst_dev, 90*b96f500dSMartynas Pumputis const struct in6_addr *daddr, 91*b96f500dSMartynas Pumputis unsigned int prefs, 92*b96f500dSMartynas Pumputis struct in6_addr *saddr); 933616d08bSDavid Ahern }; 943616d08bSDavid Ahern extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly; 953616d08bSDavid Ahern 963616d08bSDavid Ahern #endif 97