MPTCP Netlink API Question)

[pak-ji]

Issues : https://github.com/multipath-tcp/mptcp/issues/437 ADD_ADDR signal sent successfully. Thank you for the above link advice.

However, I face a different problem. The problem is the "MPTCP_CMD_SUB_CREATE" command. this command required rem_id.

*   - MPTCP_CMD_SUB_CREATE: token, family, loc_id, rem_id, daddr4 | daddr6,
*                           dport [, saddr4 | saddr6, sport, backup, if_idx]
*       Create a new subflow. 

But I couldn't get the rem_id.

Qustion) How can the client get the rem_id? Should the client wait for the event(MPTCP_EVENT_ANNOUNCED)?

[VenkateswaranJ]

Should the client wait for the event(MPTCP_EVENT_ANNOUNCED)? Yes (As far as I know, that's the only safe way to get the remote address and ID). The address and ID needs to be announced from remote side before executing MPTCP_CMD_SUB_CREATE.

Note: The ID should be unique within the MPTCP connection.

[pak-ji]

Should the client wait for the event(MPTCP_EVENT_ANNOUNCED)? Yes (As far as I know, that's the only safe way to get the remote address and ID). The address and ID needs to be announced from remote side before executing MPTCP_CMD_SUB_CREATE.

Note: The ID should be unique within the MPTCP connection.

Thanks :)