diff options
| author |   Peter Krystad <peter.krystad@linux.intel.com> | 2020-01-21 16:56:16 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-01-24 13:44:07 +0100 |
| commit | eda7acddf8080bb2d022a8d4b8b2345eb80c63ec (patch) | |
| tree | 91aded05b9988f6f8b55683eec74712a33cb2270 /include/net | |
| parent | mptcp: Add MPTCP socket stubs (diff) | |
| download | linux-dev-eda7acddf8080bb2d022a8d4b8b2345eb80c63ec.tar.xz linux-dev-eda7acddf8080bb2d022a8d4b8b2345eb80c63ec.zip | |
mptcp: Handle MPTCP TCP options
Add hooks to parse and format the MP_CAPABLE option.
This option is handled according to MPTCP version 0 (RFC6824).
MPTCP version 1 MP_CAPABLE (RFC6824bis/RFC8684) will be added later in
coordination with related code changes.
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Co-developed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
Co-developed-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Peter Krystad <peter.krystad@linux.intel.com>
Signed-off-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/mptcp.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/net/mptcp.h b/include/net/mptcp.h index 98ba22379117..3daec2ceb3ff 100644 --- a/include/net/mptcp.h +++ b/include/net/mptcp.h @@ -9,6 +9,7 @@ #define __NET_MPTCP_H #include <linux/skbuff.h> +#include <linux/tcp.h> #include <linux/types.h> /* MPTCP sk_buff extension data */ @@ -26,10 +27,22 @@ struct mptcp_ext { /* one byte hole */ }; +struct mptcp_out_options { +#if IS_ENABLED(CONFIG_MPTCP) + u16 suboptions; + u64 sndr_key; + u64 rcvr_key; +#endif +}; + #ifdef CONFIG_MPTCP void mptcp_init(void); +void mptcp_parse_option(const unsigned char *ptr, int opsize, + struct tcp_options_received *opt_rx); +void mptcp_write_options(__be32 *ptr, struct mptcp_out_options *opts); + /* move the skb extension owership, with the assumption that 'to' is * newly allocated */ @@ -76,6 +89,11 @@ static inline void mptcp_init(void) { } +static inline void mptcp_parse_option(const unsigned char *ptr, int opsize, + struct tcp_options_received *opt_rx) +{ +} + static inline void mptcp_skb_ext_move(struct sk_buff *to, const struct sk_buff *from) { |