diff options
| author |   Florian Westphal <fw@strlen.de> | 2020-12-10 14:25:04 -0800 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2020-12-14 17:30:06 -0800 |
| commit | 50c504a20a754ca37b5e1f4e660cd687769a7dca (patch) | |
| tree | 89e5bb5338107150a46d8df25cd76db5a9b7353c /net/mptcp/protocol.h | |
| parent | tcp: parse mptcp options contained in reset packets (diff) | |
| download | linux-dev-50c504a20a754ca37b5e1f4e660cd687769a7dca.tar.xz linux-dev-50c504a20a754ca37b5e1f4e660cd687769a7dca.zip | |
mptcp: parse and act on incoming FASTCLOSE option
parse the MPTCP FASTCLOSE subtype.
If provided key matches the local one, schedule the work queue to close
(with tcp reset) all subflows.
The MPTCP socket moves to closed state immediately.
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index a5bc9599ae5c..7cf9d110b85f 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -23,6 +23,7 @@ #define OPTION_MPTCP_ADD_ADDR BIT(6) #define OPTION_MPTCP_ADD_ADDR6 BIT(7) #define OPTION_MPTCP_RM_ADDR BIT(8) +#define OPTION_MPTCP_FASTCLOSE BIT(9) /* MPTCP option subtypes */ #define MPTCPOPT_MP_CAPABLE 0 @@ -58,6 +59,7 @@ #define TCPOLEN_MPTCP_ADD_ADDR6_BASE_PORT 24 #define TCPOLEN_MPTCP_PORT_LEN 4 #define TCPOLEN_MPTCP_RM_ADDR_BASE 4 +#define TCPOLEN_MPTCP_FASTCLOSE 12 /* MPTCP MP_JOIN flags */ #define MPTCPOPT_BACKUP BIT(0) @@ -110,6 +112,7 @@ struct mptcp_options_received { u16 data_len; u16 mp_capable : 1, mp_join : 1, + fastclose : 1, dss : 1, add_addr : 1, rm_addr : 1, @@ -237,6 +240,7 @@ struct mptcp_sock { bool fully_established; bool rcv_data_fin; bool snd_data_fin_enable; + bool rcv_fastclose; bool use_64bit_ack; /* Set when we received a 64-bit DSN */ spinlock_t join_list_lock; struct sock *ack_hint; |