Blaster4385/linux-IllusionX
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

netlink: specs: mptcp: fix port endianness

Browse source 
The MPTCP port attribute is in host endianness, but was documented
as big-endian in the ynl specification.

Below are two examples from net/mptcp/pm_netlink.c showing that the
attribute is converted to/from host endianness for use with netlink.

Import from netlink:
  addr->port = htons(nla_get_u16(tb[MPTCP_PM_ADDR_ATTR_PORT]))

Export to netlink:
  nla_put_u16(skb, MPTCP_PM_ADDR_ATTR_PORT, ntohs(addr->port))

Where addr->port is defined as __be16.

No functional change intended.

Fixes: bc8aeb2045 ("Documentation: netlink: add a YAML spec for mptcp")
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240911091003.1112179-1-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Asbjørn Sloth Tønnesen 2024-09-11 09:10:02 +00:00 committed by Jakub Kicinski
parent cbd7ec0834
commit 09a45a5553
1 changed files with 0 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
Documentation/netlink/specs/mptcp_pm.yaml
View file

@ -109,7 +109,6 @@ attribute-sets:
- -
name: port name: port
type: u16 type: u16
byte-order: big-endian
- -
name: flags name: flags
type: u32 type: u32