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Maxim Galaganov c85636a292 mptcp: sockopt: support IP_LOCAL_PORT_RANGE and IP_BIND_ADDRESS_NO_PORT 
Support for IP_BIND_ADDRESS_NO_PORT sockopt was introduced in [1].
Recently [2] allowed its value to be accessed without locking the
socket.

Support for (newer) IP_LOCAL_PORT_RANGE sockopt was introduced in [3].
In the same series a selftest was added in [4]. This selftest also
covers the IP_BIND_ADDRESS_NO_PORT sockopt.

This patch enables getsockopt()/setsockopt() on MPTCP sockets for these
socket options, syncing set values to subflows in sync_socket_options().
Ephemeral port range is synced to subflows, enabling NAT usecase
described in [3].

[1] commit 90c337da15 ("inet: add IP_BIND_ADDRESS_NO_PORT to overcome
bind(0) limitations")
[2] commit ca571e2eb7 ("inet: move inet->bind_address_no_port to
inet->inet_flags")
[3] commit 91d0b78c51 ("inet: Add IP_LOCAL_PORT_RANGE socket option")
[4] commit ae5439658c ("selftests/net: Cover the IP_LOCAL_PORT_RANGE
socket option")

Signed-off-by: Maxim Galaganov <max@internet.ru>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-12-26 22:33:21 +00:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
block block-6.7-2023-12-01 2023-12-02 06:39:30 +09:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto This push fixes a regression in ahash and hides the Kconfig sub-options for the jitter RNG. 2023-11-09 17:04:58 -08:00
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
drivers net: phy: at803x: better align function varibles to open parenthesis 2023-12-26 22:27:54 +00:00
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
include net/sched: act_mirred: Allow mirred to block 2023-12-26 21:20:09 +00:00
init As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
io_uring io_uring/cmd: fix breakage in SOCKET_URING_OP_SIOC* implementation 2023-12-14 16:52:13 -07:00
ipc Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
net mptcp: sockopt: support IP_LOCAL_PORT_RANGE and IP_BIND_ADDRESS_NO_PORT 2023-12-26 22:33:21 +00:00
rust net: phy: add Rust Asix PHY driver 2023-12-15 09:35:50 +00:00
samples Landlock updates for v6.7-rc1 2023-11-03 09:28:53 -10:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-14 17:14:41 -08:00
security Revert BPF token-related functionality 2023-12-19 08:23:03 -08:00
sound ALSA: hda/tas2781: reset the amp before component_add 2023-12-14 12:04:38 +01:00
tools selftests: forwarding: ethtool_mm: fall back to aggregate if device does not report pMAC stats 2023-12-23 01:01:19 +00:00
usr arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
virt Revert "KVM: Prevent module exit until all VMs are freed" 2023-12-01 08:12:30 -08:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/ 2023-10-03 20:49:09 +09:00
.mailmap mailmap: add entries for Geliang Tang 2023-12-17 20:54:22 +00:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: drop Antti Palosaari 2023-12-06 16:12:49 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-21 22:17:23 +01:00
Makefile Linux 6.7-rc6 2023-12-17 15:19:28 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.