diff options
| author | Xin Long <lucien.xin@gmail.com> | 2020-10-29 15:05:10 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-10-30 15:24:49 -0700 |
| commit | 046c052b475e7119b6a30e3483e2888fc606a2f8 (patch) | |
| tree | f25de1668a51e0de2357faa30d0b50fc3abb8519 /Documentation | |
| parent | 1c16a1862595e66d22d34799a9f328defc884369 (diff) | |
sctp: enable udp tunneling socks
This patch is to enable udp tunneling socks by calling
sctp_udp_sock_start() in sctp_ctrlsock_init(), and
sctp_udp_sock_stop() in sctp_ctrlsock_exit().
Also add sysctl udp_port to allow changing the listening
sock's port by users.
Wit this patch, the whole sctp over udp feature can be
enabled and used.
v1->v2:
- Also update ctl_sock udp_port in proc_sctp_do_udp_port()
where netns udp_port gets changed.
v2->v3:
- Call htons() when setting sk udp_port from netns udp_port.
v3->v4:
- Not call sctp_udp_sock_start() when new_value is 0.
- Add udp_port entry in ip-sysctl.rst.
v4->v5:
- Not call sctp_udp_sock_start/stop() in sctp_ctrlsock_init/exit().
- Improve the description of udp_port in ip-sysctl.rst.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/ip-sysctl.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index dad3ba952989..2aaf40b2d2cd 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -2642,6 +2642,21 @@ addr_scope_policy - INTEGER Default: 1 +udp_port - INTEGER + The listening port for the local UDP tunneling sock. Normally it's + using the IANA-assigned UDP port number 9899 (sctp-tunneling). + + This UDP sock is used for processing the incoming UDP-encapsulated + SCTP packets (from RFC6951), and shared by all applications in the + same net namespace. This UDP sock will be closed when the value is + set to 0. + + The value will also be used to set the src port of the UDP header + for the outgoing UDP-encapsulated SCTP packets. For the dest port, + please refer to 'encap_port' below. + + Default: 0 + encap_port - INTEGER The default remote UDP encapsulation port. |