diff options
Diffstat (limited to 'include/net/mptcp.h')
| -rw-r--r-- | include/net/mptcp.h | 48 |
1 files changed, 37 insertions, 11 deletions
diff --git a/include/net/mptcp.h b/include/net/mptcp.h index 5694370be3d4..83f23774b908 100644 --- a/include/net/mptcp.h +++ b/include/net/mptcp.h @@ -30,8 +30,27 @@ struct mptcp_ext { ack64:1, mpc_map:1, frozen:1, - __unused:1; - /* one byte hole */ + reset_transient:1; + u8 reset_reason:4; +}; + +#define MPTCP_RM_IDS_MAX 8 + +struct mptcp_rm_list { + u8 ids[MPTCP_RM_IDS_MAX]; + u8 nr; +}; + +struct mptcp_addr_info { + u8 id; + sa_family_t family; + __be16 port; + union { + struct in_addr addr; +#if IS_ENABLED(CONFIG_MPTCP_IPV6) + struct in6_addr addr6; +#endif + }; }; struct mptcp_out_options { @@ -39,18 +58,13 @@ struct mptcp_out_options { u16 suboptions; u64 sndr_key; u64 rcvr_key; - union { - struct in_addr addr; -#if IS_ENABLED(CONFIG_MPTCP_IPV6) - struct in6_addr addr6; -#endif - }; - u8 addr_id; - u16 port; u64 ahmac; - u8 rm_id; + struct mptcp_addr_info addr; + struct mptcp_rm_list rm_list; u8 join_id; u8 backup; + u8 reset_reason:4; + u8 reset_transient:1; u32 nonce; u64 thmac; u32 token; @@ -149,6 +163,16 @@ void mptcp_seq_show(struct seq_file *seq); int mptcp_subflow_init_cookie_req(struct request_sock *req, const struct sock *sk_listener, struct sk_buff *skb); + +__be32 mptcp_get_reset_option(const struct sk_buff *skb); + +static inline __be32 mptcp_reset_option(const struct sk_buff *skb) +{ + if (skb_ext_exist(skb, SKB_EXT_MPTCP)) + return mptcp_get_reset_option(skb); + + return htonl(0u); +} #else static inline void mptcp_init(void) @@ -229,6 +253,8 @@ static inline int mptcp_subflow_init_cookie_req(struct request_sock *req, { return 0; /* TCP fallback */ } + +static inline __be32 mptcp_reset_option(const struct sk_buff *skb) { return htonl(0u); } #endif /* CONFIG_MPTCP */ #if IS_ENABLED(CONFIG_MPTCP_IPV6) |