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| author | Geliang Tang <geliangtang@xiaomi.com> | 2021-08-25 02:26:15 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-25 13:02:34 +0300 |
| commit | c25aeb4e095355eec3beb6a2b2b30322bd6d0dd4 (patch) | |
| tree | b7288450cc5babe7d3d4e663505d42a4eb35c93b /net/mptcp/protocol.h | |
| parent | d7b269083786dca3b1b0141bde6cea834062b691 (diff) | |
| download | linux-c25aeb4e095355eec3beb6a2b2b30322bd6d0dd4.tar.xz | |
mptcp: MP_FAIL suboption sending
This patch added the MP_FAIL suboption sending support.
Add a new flag named send_mp_fail in struct mptcp_subflow_context. If
this flag is set, send out MP_FAIL suboption.
Add a new member fail_seq in struct mptcp_out_options to save the data
sequence number to put into the MP_FAIL suboption.
An MP_FAIL option could be included in a RST or on the subflow-level
ACK.
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index d276ce16f126..3e4a79cf520a 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -27,6 +27,7 @@ #define OPTION_MPTCP_PRIO BIT(9) #define OPTION_MPTCP_RST BIT(10) #define OPTION_MPTCP_DSS BIT(11) +#define OPTION_MPTCP_FAIL BIT(12) /* MPTCP option subtypes */ #define MPTCPOPT_MP_CAPABLE 0 @@ -68,6 +69,7 @@ #define TCPOLEN_MPTCP_PRIO_ALIGN 4 #define TCPOLEN_MPTCP_FASTCLOSE 12 #define TCPOLEN_MPTCP_RST 4 +#define TCPOLEN_MPTCP_FAIL 12 #define TCPOLEN_MPTCP_MPC_ACK_DATA_CSUM (TCPOLEN_MPTCP_DSS_CHECKSUM + TCPOLEN_MPTCP_MPC_ACK_DATA) @@ -429,6 +431,7 @@ struct mptcp_subflow_context { mpc_map : 1, backup : 1, send_mp_prio : 1, + send_mp_fail : 1, rx_eof : 1, can_ack : 1, /* only after processing the remote a key */ disposable : 1, /* ctx can be free at ulp release time */ |