diff options
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 5f43fa0275c0..384ec4804198 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -32,6 +32,10 @@ #define TCPOLEN_MPTCP_MPC_SYN 12 #define TCPOLEN_MPTCP_MPC_SYNACK 12 #define TCPOLEN_MPTCP_MPC_ACK 20 +#define TCPOLEN_MPTCP_DSS_BASE 4 +#define TCPOLEN_MPTCP_DSS_ACK64 8 +#define TCPOLEN_MPTCP_DSS_MAP64 14 +#define TCPOLEN_MPTCP_DSS_CHECKSUM 2 /* MPTCP MP_CAPABLE flags */ #define MPTCP_VERSION_MASK (0x0F) @@ -40,14 +44,24 @@ #define MPTCP_CAP_HMAC_SHA1 BIT(0) #define MPTCP_CAP_FLAG_MASK (0x3F) +/* MPTCP DSS flags */ +#define MPTCP_DSS_DATA_FIN BIT(4) +#define MPTCP_DSS_DSN64 BIT(3) +#define MPTCP_DSS_HAS_MAP BIT(2) +#define MPTCP_DSS_ACK64 BIT(1) +#define MPTCP_DSS_HAS_ACK BIT(0) + /* MPTCP connection sock */ struct mptcp_sock { /* inet_connection_sock must be the first member */ struct inet_connection_sock sk; u64 local_key; u64 remote_key; + u64 write_seq; + u64 ack_seq; u32 token; struct list_head conn_list; + struct skb_ext *cached_ext; /* for the next sendmsg */ struct socket *subflow; /* outgoing connect/listener/!mp_capable */ }; @@ -83,6 +97,7 @@ struct mptcp_subflow_context { u64 remote_key; u64 idsn; u32 token; + u32 rel_write_seq; u32 request_mptcp : 1, /* send MP_CAPABLE */ mp_capable : 1, /* remote is MPTCP capable */ fourth_ack : 1, /* send initial DSS */ @@ -144,4 +159,9 @@ static inline void mptcp_crypto_key_gen_sha(u64 *key, u32 *token, u64 *idsn) void mptcp_crypto_hmac_sha(u64 key1, u64 key2, u32 nonce1, u32 nonce2, u32 *hash_out); +static inline struct mptcp_ext *mptcp_get_ext(struct sk_buff *skb) +{ + return (struct mptcp_ext *)skb_ext_find(skb, SKB_EXT_MPTCP); +} + #endif /* __MPTCP_PROTOCOL_H */ |