diff options
| author | Geliang Tang <geliangtang@gmail.com> | 2021-06-22 12:25:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-22 14:36:01 -0700 |
| commit | bab6b88e056038f618b2fb977d95b05ad3da8d0c (patch) | |
| tree | 2ff6ea80caf60c5ccaab71f7e4a1ce1af3cdf6c6 /net/mptcp/protocol.h | |
| parent | d2f77960e5b03b2d373252b2ee150a4a14010f99 (diff) | |
mptcp: add allow_join_id0 in mptcp_out_options
This patch defined a new flag MPTCP_CAP_DENY_JOIN_ID0 for the third bit,
labeled "C" of the MP_CAPABLE option.
Add a new flag allow_join_id0 in struct mptcp_out_options. If this flag is
set, send out the MP_CAPABLE option with the flag MPTCP_CAP_DENY_JOIN_ID0.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.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 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 9aab5fb54716..f2326f6074b9 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -79,8 +79,9 @@ #define MPTCP_VERSION_MASK (0x0F) #define MPTCP_CAP_CHECKSUM_REQD BIT(7) #define MPTCP_CAP_EXTENSIBILITY BIT(6) +#define MPTCP_CAP_DENY_JOIN_ID0 BIT(5) #define MPTCP_CAP_HMAC_SHA256 BIT(0) -#define MPTCP_CAP_FLAG_MASK (0x3F) +#define MPTCP_CAP_FLAG_MASK (0x1F) /* MPTCP DSS flags */ #define MPTCP_DSS_DATA_FIN BIT(4) @@ -350,7 +351,8 @@ struct mptcp_subflow_request_sock { u16 mp_capable : 1, mp_join : 1, backup : 1, - csum_reqd : 1; + csum_reqd : 1, + allow_join_id0 : 1; u8 local_id; u8 remote_id; u64 local_key; |