diff options
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 89f6b73783d5..16e50caf200e 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -68,6 +68,8 @@ #define TCPOLEN_MPTCP_FASTCLOSE 12 #define TCPOLEN_MPTCP_RST 4 +#define TCPOLEN_MPTCP_MPC_ACK_DATA_CSUM (TCPOLEN_MPTCP_DSS_CHECKSUM + TCPOLEN_MPTCP_MPC_ACK_DATA) + /* MPTCP MP_JOIN flags */ #define MPTCPOPT_BACKUP BIT(0) #define MPTCPOPT_HMAC_LEN 20 @@ -124,6 +126,7 @@ struct mptcp_options_received { u64 data_seq; u32 subflow_seq; u16 data_len; + __sum16 csum; u16 mp_capable : 1, mp_join : 1, fastclose : 1, @@ -133,6 +136,7 @@ struct mptcp_options_received { rm_addr : 1, mp_prio : 1, echo : 1, + csum_reqd : 1, backup : 1; u32 token; u32 nonce; @@ -234,6 +238,7 @@ struct mptcp_sock { bool snd_data_fin_enable; bool rcv_fastclose; bool use_64bit_ack; /* Set when we received a 64-bit DSN */ + bool csum_enabled; spinlock_t join_list_lock; struct sock *ack_hint; struct work_struct work; @@ -335,11 +340,19 @@ static inline struct mptcp_data_frag *mptcp_rtx_head(const struct sock *sk) return list_first_entry_or_null(&msk->rtx_queue, struct mptcp_data_frag, list); } +struct csum_pseudo_header { + __be64 data_seq; + __be32 subflow_seq; + __be16 data_len; + __sum16 csum; +}; + struct mptcp_subflow_request_sock { struct tcp_request_sock sk; u16 mp_capable : 1, mp_join : 1, - backup : 1; + backup : 1, + csum_reqd : 1; u8 local_id; u8 remote_id; u64 local_key; @@ -387,6 +400,8 @@ struct mptcp_subflow_context { u32 map_subflow_seq; u32 ssn_offset; u32 map_data_len; + __wsum map_data_csum; + u32 map_csum_len; u32 request_mptcp : 1, /* send MP_CAPABLE */ request_join : 1, /* send MP_JOIN */ request_bkup : 1, @@ -396,6 +411,8 @@ struct mptcp_subflow_context { pm_notified : 1, /* PM hook called for established status */ conn_finished : 1, map_valid : 1, + map_csum_reqd : 1, + map_data_fin : 1, mpc_map : 1, backup : 1, send_mp_prio : 1, @@ -525,6 +542,7 @@ static inline void mptcp_subflow_delegated_done(struct mptcp_subflow_context *su int mptcp_is_enabled(struct net *net); unsigned int mptcp_get_add_addr_timeout(struct net *net); +int mptcp_is_checksum_enabled(struct net *net); void mptcp_subflow_fully_established(struct mptcp_subflow_context *subflow, struct mptcp_options_received *mp_opt); bool mptcp_subflow_data_available(struct sock *sk); @@ -576,7 +594,8 @@ int __init mptcp_proto_v6_init(void); struct sock *mptcp_sk_clone(const struct sock *sk, const struct mptcp_options_received *mp_opt, struct request_sock *req); -void mptcp_get_options(const struct sk_buff *skb, +void mptcp_get_options(const struct sock *sk, + const struct sk_buff *skb, struct mptcp_options_received *mp_opt); void mptcp_finish_connect(struct sock *sk); |