diff options
Diffstat (limited to 'net/l2tp/l2tp_core.h')
| -rw-r--r-- | net/l2tp/l2tp_core.h | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h index 56d583e083a..68aa9ffd4ae 100644 --- a/net/l2tp/l2tp_core.h +++ b/net/l2tp/l2tp_core.h @@ -36,16 +36,15 @@ enum { struct sk_buff; struct l2tp_stats { - u64 tx_packets; - u64 tx_bytes; - u64 tx_errors; - u64 rx_packets; - u64 rx_bytes; - u64 rx_seq_discards; - u64 rx_oos_packets; - u64 rx_errors; - u64 rx_cookie_discards; - struct u64_stats_sync syncp; + atomic_long_t tx_packets; + atomic_long_t tx_bytes; + atomic_long_t tx_errors; + atomic_long_t rx_packets; + atomic_long_t rx_bytes; + atomic_long_t rx_seq_discards; + atomic_long_t rx_oos_packets; + atomic_long_t rx_errors; + atomic_long_t rx_cookie_discards; }; struct l2tp_tunnel; @@ -103,6 +102,11 @@ struct l2tp_session { u32 nr; /* session NR state (receive) */ u32 ns; /* session NR state (send) */ struct sk_buff_head reorder_q; /* receive reorder queue */ + u32 nr_max; /* max NR. Depends on tunnel */ + u32 nr_window_size; /* NR window size */ + u32 nr_oos; /* NR of last OOS packet */ + int nr_oos_count; /* For OOS recovery */ + int nr_oos_count_max; struct hlist_node hlist; /* Hash list node */ atomic_t ref_count; @@ -158,7 +162,9 @@ struct l2tp_tunnel_cfg { #endif u16 local_udp_port; u16 peer_udp_port; - unsigned int use_udp_checksums:1; + unsigned int use_udp_checksums:1, + udp6_zero_tx_checksums:1, + udp6_zero_rx_checksums:1; }; struct l2tp_tunnel { @@ -188,7 +194,13 @@ struct l2tp_tunnel { int (*recv_payload_hook)(struct sk_buff *skb); void (*old_sk_destruct)(struct sock *); struct sock *sock; /* Parent socket */ - int fd; + int fd; /* Parent fd, if tunnel socket + * was created by userspace */ +#if IS_ENABLED(CONFIG_IPV6) + bool v4mapped; +#endif + + struct work_struct del_work; uint8_t priv[0]; /* private data */ }; @@ -228,24 +240,39 @@ out: return tunnel; } -extern struct l2tp_session *l2tp_session_find(struct net *net, struct l2tp_tunnel *tunnel, u32 session_id); -extern struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth); -extern struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname); -extern struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id); -extern struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth); - -extern int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg, struct l2tp_tunnel **tunnelp); -extern int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel); -extern struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg); -extern int l2tp_session_delete(struct l2tp_session *session); -extern void l2tp_session_free(struct l2tp_session *session); -extern void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb, unsigned char *ptr, unsigned char *optr, u16 hdrflags, int length, int (*payload_hook)(struct sk_buff *skb)); -extern int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb); - -extern int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len); - -extern int l2tp_nl_register_ops(enum l2tp_pwtype pw_type, const struct l2tp_nl_cmd_ops *ops); -extern void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type); +struct l2tp_session *l2tp_session_find(struct net *net, + struct l2tp_tunnel *tunnel, + u32 session_id); +struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth); +struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname); +struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id); +struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth); + +int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, + u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg, + struct l2tp_tunnel **tunnelp); +void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel); +int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel); +struct l2tp_session *l2tp_session_create(int priv_size, + struct l2tp_tunnel *tunnel, + u32 session_id, u32 peer_session_id, + struct l2tp_session_cfg *cfg); +void __l2tp_session_unhash(struct l2tp_session *session); +int l2tp_session_delete(struct l2tp_session *session); +void l2tp_session_free(struct l2tp_session *session); +void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb, + unsigned char *ptr, unsigned char *optr, u16 hdrflags, + int length, int (*payload_hook)(struct sk_buff *skb)); +int l2tp_session_queue_purge(struct l2tp_session *session); +int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb); +void l2tp_session_set_header_len(struct l2tp_session *session, int version); + +int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, + int hdr_len); + +int l2tp_nl_register_ops(enum l2tp_pwtype pw_type, + const struct l2tp_nl_cmd_ops *ops); +void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type); /* Session reference counts. Incremented when code obtains a reference * to a session. |