diff options
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 54 |
1 files changed, 38 insertions, 16 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 5f4c10c41c..a10ebf3ee1 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -259,8 +259,10 @@ struct mptcp_data_frag { struct mptcp_sock { /* inet_connection_sock must be the first member */ struct inet_connection_sock sk; - u64 local_key; - u64 remote_key; + u64 local_key; /* protected by the first subflow socket lock + * lockless access read + */ + u64 remote_key; /* same as above */ u64 write_seq; u64 bytes_sent; u64 snd_nxt; @@ -306,9 +308,6 @@ struct mptcp_sock { free_first:1, rcvspace_init:1; u32 notsent_lowat; - int keepalive_cnt; - int keepalive_idle; - int keepalive_intvl; struct work_struct work; struct sk_buff *ooo_last_skb; struct rb_root out_of_order_queue; @@ -344,12 +343,30 @@ struct mptcp_sock { #define mptcp_for_each_subflow_safe(__msk, __subflow, __tmp) \ list_for_each_entry_safe(__subflow, __tmp, &((__msk)->conn_list), node) +extern struct genl_family mptcp_genl_family; + static inline void msk_owned_by_me(const struct mptcp_sock *msk) { sock_owned_by_me((const struct sock *)msk); } +#ifdef CONFIG_DEBUG_NET +/* MPTCP-specific: we might (indirectly) call this helper with the wrong sk */ +#undef tcp_sk +#define tcp_sk(ptr) ({ \ + typeof(ptr) _ptr = (ptr); \ + WARN_ON(_ptr->sk_protocol != IPPROTO_TCP); \ + container_of_const(_ptr, struct tcp_sock, inet_conn.icsk_inet.sk); \ +}) +#define mptcp_sk(ptr) ({ \ + typeof(ptr) _ptr = (ptr); \ + WARN_ON(_ptr->sk_protocol != IPPROTO_MPTCP); \ + container_of_const(_ptr, struct mptcp_sock, sk.icsk_inet.sk); \ +}) + +#else /* !CONFIG_DEBUG_NET */ #define mptcp_sk(ptr) container_of_const(ptr, struct mptcp_sock, sk.icsk_inet.sk) +#endif /* the msk socket don't use the backlog, also account for the bulk * free memory @@ -403,7 +420,7 @@ static inline struct mptcp_data_frag *mptcp_rtx_head(struct sock *sk) { struct mptcp_sock *msk = mptcp_sk(sk); - if (msk->snd_una == READ_ONCE(msk->snd_nxt)) + if (msk->snd_una == msk->snd_nxt) return NULL; return list_first_entry_or_null(&msk->rtx_queue, struct mptcp_data_frag, list); @@ -833,7 +850,7 @@ static inline void __mptcp_sync_sndbuf(struct sock *sk) if (sk->sk_userlocks & SOCK_SNDBUF_LOCK) return; - new_sndbuf = sock_net(sk)->ipv4.sysctl_tcp_wmem[0]; + new_sndbuf = READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_wmem[0]); mptcp_for_each_subflow(mptcp_sk(sk), subflow) { ssk_sndbuf = READ_ONCE(mptcp_subflow_tcp_sock(subflow)->sk_sndbuf); @@ -953,21 +970,15 @@ int mptcp_pm_nl_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int int mptcp_userspace_pm_get_flags_and_ifindex_by_id(struct mptcp_sock *msk, unsigned int id, u8 *flags, int *ifindex); -int mptcp_pm_set_flags(struct net *net, struct nlattr *token, - struct mptcp_pm_addr_entry *loc, - struct mptcp_pm_addr_entry *rem, u8 bkup); -int mptcp_pm_nl_set_flags(struct net *net, struct mptcp_pm_addr_entry *addr, u8 bkup); -int mptcp_userspace_pm_set_flags(struct net *net, struct nlattr *token, - struct mptcp_pm_addr_entry *loc, - struct mptcp_pm_addr_entry *rem, u8 bkup); +int mptcp_pm_set_flags(struct sk_buff *skb, struct genl_info *info); +int mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info); +int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info); int mptcp_pm_announce_addr(struct mptcp_sock *msk, const struct mptcp_addr_info *addr, bool echo); int mptcp_pm_remove_addr(struct mptcp_sock *msk, const struct mptcp_rm_list *rm_list); int mptcp_pm_remove_subflow(struct mptcp_sock *msk, const struct mptcp_rm_list *rm_list); void mptcp_pm_remove_addrs(struct mptcp_sock *msk, struct list_head *rm_list); -void mptcp_pm_remove_addrs_and_subflows(struct mptcp_sock *msk, - struct list_head *rm_list); void mptcp_free_local_addr_list(struct mptcp_sock *msk); @@ -983,6 +994,8 @@ void __mptcp_fastopen_gen_msk_ackseq(struct mptcp_sock *msk, struct mptcp_subflo const struct mptcp_options_received *mp_opt); void mptcp_fastopen_subflow_synack_set_params(struct mptcp_subflow_context *subflow, struct request_sock *req); +int mptcp_nl_fill_addr(struct sk_buff *skb, + struct mptcp_pm_addr_entry *entry); static inline bool mptcp_pm_should_add_signal(struct mptcp_sock *msk) { @@ -1047,6 +1060,15 @@ bool mptcp_pm_rm_addr_signal(struct mptcp_sock *msk, unsigned int remaining, int mptcp_pm_get_local_id(struct mptcp_sock *msk, struct sock_common *skc); int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct mptcp_addr_info *skc); int mptcp_userspace_pm_get_local_id(struct mptcp_sock *msk, struct mptcp_addr_info *skc); +int mptcp_pm_dump_addr(struct sk_buff *msg, struct netlink_callback *cb); +int mptcp_pm_nl_dump_addr(struct sk_buff *msg, + struct netlink_callback *cb); +int mptcp_userspace_pm_dump_addr(struct sk_buff *msg, + struct netlink_callback *cb); +int mptcp_pm_get_addr(struct sk_buff *skb, struct genl_info *info); +int mptcp_pm_nl_get_addr(struct sk_buff *skb, struct genl_info *info); +int mptcp_userspace_pm_get_addr(struct sk_buff *skb, + struct genl_info *info); static inline u8 subflow_get_local_id(const struct mptcp_subflow_context *subflow) { |