75670 Commits

Author SHA1 Message Date
Zhengchao Shao
c4a5ee9c09 fib: rules: remove repeated assignment in fib_nl2rule
In fib_nl2rule(), 'err' variable has been set to -EINVAL during
declaration, and no need to set the 'err' variable to -EINVAL again.
So, remove it.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-07 15:16:19 +00:00
Pedro Tammela
405cd9fc6f net/sched: simplify tc_action_load_ops parameters
Instead of using two bools derived from a flags passed as arguments to
the parent function of tc_action_load_ops, just pass the flags itself
to tc_action_load_ops to simplify its parameters.

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-07 14:58:26 +00:00
Ahmed Zaki
948f97f9d8 net: ethtool: reject unsupported RSS input xfrm values
RXFH input_xfrm currently has three supported values: 0 (clear all),
symmetric_xor and NO_CHANGE.

Reject any other value sent from user-space.

Fixes: 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash")
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20240104212653.394424-1-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 19:23:15 -08:00
Jakub Kicinski
8158a50f90 bpf-next-for-netdev
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-01-05

We've added 40 non-merge commits during the last 2 day(s) which contain
a total of 73 files changed, 1526 insertions(+), 951 deletions(-).

The main changes are:

1) Fix a memory leak when streaming AF_UNIX sockets were inserted
   into multiple sockmap slots/maps, from John Fastabend.

2) Fix gotol in s390 BPF JIT with large offsets, from Ilya Leoshkevich.

3) Fix reattachment branch in bpf_tracing_prog_attach() and reject
   the request if there is no valid attach_btf, from Jiri Olsa.

4) Remove deprecated bpfilter kernel leftovers given the project
   is developed in user space (https://github.com/facebook/bpfilter),
   from Quentin Deslandes.

5) Relax tracing BPF program recursive attach rules given right now
   it is not possible to create tracing program call cycles,
   from Dmitrii Dolgov.

6) Fix excessive memory consumption for the bpf_global_percpu_ma
   for systems with a large number of CPUs, from Yonghong Song.

7) Small x86 BPF JIT cleanup to reuse emit_nops instead of open-coding
   memcpy of x86_nops, from Leon Hwang.

8) Follow-up for libbpf to support __arg_ctx global function argument tag
   semantics to complement the merged kernel side, from Andrii Nakryiko.

9) Introduce "volatile compare" macros for BPF selftests in order
   to make the latter more robust against compiler optimization,
   from Alexei Starovoitov.

10) Small simplification in verifier's size checking of helper accesses
    along with additional selftests, from Andrei Matei.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (40 commits)
  selftests/bpf: Test re-attachment fix for bpf_tracing_prog_attach
  bpf: Fix re-attachment branch in bpf_tracing_prog_attach
  selftests/bpf: Add test for recursive attachment of tracing progs
  bpf: Relax tracing prog recursive attach rules
  bpf, x86: Use emit_nops to replace memcpy x86_nops
  selftests/bpf: Test gotol with large offsets
  selftests/bpf: Double the size of test_loader log
  s390/bpf: Fix gotol with large offsets
  bpfilter: remove bpfilter
  bpf: Remove unnecessary cpu == 0 check in memalloc
  selftests/bpf: add __arg_ctx BTF rewrite test
  selftests/bpf: add arg:ctx cases to test_global_funcs tests
  libbpf: implement __arg_ctx fallback logic
  libbpf: move BTF loading step after relocation step
  libbpf: move exception callbacks assignment logic into relocation step
  libbpf: use stable map placeholder FDs
  libbpf: don't rely on map->fd as an indicator of map being created
  libbpf: use explicit map reuse flag to skip map creation steps
  libbpf: make uniform use of btf__fd() accessor inside libbpf
  selftests/bpf: Add a selftest with > 512-byte percpu allocation size
  ...
====================

Link: https://lore.kernel.org/r/20240105170105.21070-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 19:15:32 -08:00
Richard Gobert
dff0b0161a net: gro: parse ipv6 ext headers without frag0 invalidation
The existing code always pulls the IPv6 header and sets the transport
offset initially. Then optionally again pulls any extension headers in
ipv6_gso_pull_exthdrs and sets the transport offset again on return from
that call. skb->data is set at the start of the first extension header
before calling ipv6_gso_pull_exthdrs, and must disable the frag0
optimization because that function uses pskb_may_pull/pskb_pull instead of
skb_gro_ helpers. It sets the GRO offset to the TCP header with
skb_gro_pull and sets the transport header. Then returns skb->data to its
position before this block.

This commit introduces a new helper function - ipv6_gro_pull_exthdrs -
which is used in ipv6_gro_receive to pull ipv6 ext headers instead of
ipv6_gso_pull_exthdrs. Thus, there is no modification of skb->data, all
operations use skb_gro_* helpers, and the frag0 fast path can be taken for
IPv6 packets with ext headers.

Signed-off-by: Richard Gobert <richardbgobert@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/504130f6-b56c-4dcc-882c-97942c59f5b7@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 08:11:49 -08:00
Richard Gobert
f2e3fc2158 net: gso: add HBH extension header offload support
This commit adds net_offload to IPv6 Hop-by-Hop extension headers (as it
is done for routing and dstopts) since it is supported in GSO and GRO.
This allows to remove specific HBH conditionals in GSO and GRO when
pulling and parsing an incoming packet.

Signed-off-by: Richard Gobert <richardbgobert@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/d4f8825a-1d55-4b12-9d67-a254dbbfa6ae@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 08:11:49 -08:00
Jakub Kicinski
cb42010690 net: fill in MODULE_DESCRIPTION()s for CAIF
W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to all the CAIF sub-modules.

Link: https://lore.kernel.org/r/20240104144855.1320993-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 08:06:35 -08:00
Jakub Kicinski
b8549d8598 net: fill in MODULE_DESCRIPTION() for AF_PACKET
W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add description to net/packet/af_packet.c

Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240104144119.1319055-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 08:06:35 -08:00
Jakub Kicinski
0ed6e95255 net: fill in MODULE_DESCRIPTION()s for DSA tags
W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to all the DSA tag modules.

The descriptions are copy/pasted Kconfig names, with s/^Tag/DSA tag/.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Kurt Kanzenbach <kurt@linutronix.de>
Link: https://lore.kernel.org/r/20240104143759.1318137-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 08:06:19 -08:00
Jakub Kicinski
fc0caed81b net: fill in MODULE_DESCRIPTION()s for ATM
W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to all the ATM modules and drivers.

Link: https://lore.kernel.org/r/20240104143737.1317945-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-05 08:04:23 -08:00
Jiri Pirko
94e2557d08 net: sched: move block device tracking into tcf_block_get/put_ext()
Inserting the device to block xarray in qdisc_create() is not suitable
place to do this. As it requires use of tcf_block() callback, it causes
multiple issues. It is called for all qdisc types, which is incorrect.

So, instead, move it to more suitable place, which is tcf_block_get_ext()
and make sure it is only done for qdiscs that use block infrastructure
and also only for blocks which are shared.

Symmetrically, alter the cleanup path, move the xarray entry removal
into tcf_block_put_ext().

Fixes: 913b47d3424e ("net/sched: Introduce tc block netdev tracking infra")
Reported-by: Ido Schimmel <idosch@nvidia.com>
Closes: https://lore.kernel.org/all/ZY1hBb8GFwycfgvd@shredder/
Reported-by: Kui-Feng Lee <sinquersw@gmail.com>
Closes: https://lore.kernel.org/all/ce8d3e55-b8bc-409c-ace9-5cf1c4f7c88e@gmail.com/
Reported-and-tested-by: syzbot+84339b9e7330daae4d66@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/0000000000007c85f5060dcc3a28@google.com/
Reported-and-tested-by: syzbot+806b0572c8d06b66b234@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/00000000000082f2f2060dcc3a92@google.com/
Reported-and-tested-by: syzbot+0039110f932d438130f9@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/0000000000007fbc8c060dcc3a5c@google.com/
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Tested-by: Victor Nogueira <victor@mojatatu.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-05 11:19:08 +00:00
Jakub Kicinski
e63c1822ac Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/broadcom/bnxt/bnxt.c
  e009b2efb7a8 ("bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()")
  0f2b21477988 ("bnxt_en: Fix compile error without CONFIG_RFS_ACCEL")
https://lore.kernel.org/all/20240105115509.225aa8a2@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-04 18:06:46 -08:00
Jakub Kicinski
a180b0b1a6 Just a couple of more things over the holidays:
- first kunit tests for both cfg80211 and mac80211
  - a few multi-link fixes
  - DSCP mapping update
  - RCU fix
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Merge tag 'wireless-next-2024-01-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
Just a couple of more things over the holidays:

 - first kunit tests for both cfg80211 and mac80211
 - a few multi-link fixes
 - DSCP mapping update
 - RCU fix

* tag 'wireless-next-2024-01-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next:
  wifi: mac80211: remove redundant ML element check
  wifi: cfg80211: parse all ML elements in an ML probe response
  wifi: cfg80211: correct comment about MLD ID
  wifi: cfg80211: Update the default DSCP-to-UP mapping
  wifi: cfg80211: tests: add some scanning related tests
  wifi: mac80211: kunit: extend MFP tests
  wifi: mac80211: kunit: generalize public action test
  wifi: mac80211: add kunit tests for public action handling
  kunit: add a convenience allocation wrapper for SKBs
  kunit: add parameter generation macro using description from array
  wifi: mac80211: fix spelling typo in comment
  wifi: cfg80211: fix RCU dereference in __cfg80211_bss_update
====================

Link: https://lore.kernel.org/r/20240103144423.52269-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-04 17:00:08 -08:00
Linus Torvalds
1f874787ed Including fixes from wireless and netfilter.
Current release - regressions:
 
  - Revert "net: ipv6/addrconf: clamp preferred_lft to the minimum
    required", it caused issues on networks where routers send prefixes
    with preferred_lft=0
 
  - wifi:
    - iwlwifi: pcie: don't synchronize IRQs from IRQ, prevent deadlock
    - mac80211: fix re-adding debugfs entries during reconfiguration
 
 Current release - new code bugs:
 
  - tcp: print AO/MD5 messages only if there are any keys
 
 Previous releases - regressions:
 
  - virtio_net: fix missing dma unmap for resize, prevent OOM
 
 Previous releases - always broken:
 
  - mptcp: prevent tcp diag from closing listener subflows
 
  - nf_tables:
    - set transport header offset for egress hook, fix IPv4 mangling
    - skip set commit for deleted/destroyed sets, avoid double deactivation
 
  - nat: make sure action is set for all ct states, fix openvswitch
    matching on ICMP packets in related state
 
  - eth: mlxbf_gige: fix receive hang under heavy traffic
 
  - eth: r8169: fix PCI error on system resume for RTL8168FP
 
  - net: add missing getsockopt(SO_TIMESTAMPING_NEW) and cmsg handling
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.7-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless and netfilter.

  We haven't accumulated much over the break. If it wasn't for the
  uninterrupted stream of fixes for Intel drivers this PR would be very
  slim. There was a handful of user reports, however, either they stood
  out because of the lower traffic or users have had more time to test
  over the break. The ones which are v6.7-relevant should be wrapped up.

  Current release - regressions:

   - Revert "net: ipv6/addrconf: clamp preferred_lft to the minimum
     required", it caused issues on networks where routers send prefixes
     with preferred_lft=0

   - wifi:
      - iwlwifi: pcie: don't synchronize IRQs from IRQ, prevent deadlock
      - mac80211: fix re-adding debugfs entries during reconfiguration

  Current release - new code bugs:

   - tcp: print AO/MD5 messages only if there are any keys

  Previous releases - regressions:

   - virtio_net: fix missing dma unmap for resize, prevent OOM

  Previous releases - always broken:

   - mptcp: prevent tcp diag from closing listener subflows

   - nf_tables:
      - set transport header offset for egress hook, fix IPv4 mangling
      - skip set commit for deleted/destroyed sets, avoid double deactivation

   - nat: make sure action is set for all ct states, fix openvswitch
     matching on ICMP packets in related state

   - eth: mlxbf_gige: fix receive hang under heavy traffic

   - eth: r8169: fix PCI error on system resume for RTL8168FP

   - net: add missing getsockopt(SO_TIMESTAMPING_NEW) and cmsg handling"

* tag 'net-6.7-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (52 commits)
  net/tcp: Only produce AO/MD5 logs if there are any keys
  net: Implement missing SO_TIMESTAMPING_NEW cmsg support
  bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()
  net: ravb: Wait for operating mode to be applied
  asix: Add check for usbnet_get_endpoints
  octeontx2-af: Re-enable MAC TX in otx2_stop processing
  octeontx2-af: Always configure NIX TX link credits based on max frame size
  net/smc: fix invalid link access in dumping SMC-R connections
  net/qla3xxx: fix potential memleak in ql_alloc_buffer_queues
  virtio_net: fix missing dma unmap for resize
  igc: Fix hicredit calculation
  ice: fix Get link status data length
  i40e: Restore VF MSI-X state during PCI reset
  i40e: fix use-after-free in i40e_aqc_add_filters()
  net: Save and restore msg_namelen in sock_sendmsg
  netfilter: nft_immediate: drop chain reference counter on error
  netfilter: nf_nat: fix action not being set for all ct states
  net: bcmgenet: Fix FCS generation for fragmented skbuffs
  mptcp: prevent tcp diag from closing listener subflows
  MAINTAINERS: add Geliang as reviewer for MPTCP
  ...
2024-01-04 16:34:50 -08:00
Jakub Kicinski
fe1eb24bd5 Revert "Introduce PHY listing and link_topology tracking"
This reverts commit 32bb4515e34469975abc936deb0a116c4a445817.
This reverts commit d078d480639a4f3b5fc2d56247afa38e0956483a.
This reverts commit fcc4b105caa4b844bf043375bf799c20a9c99db1.
This reverts commit 345237dbc1bdbb274c9fb9ec38976261ff4a40b8.
This reverts commit 7db69ec9cfb8b4ab50420262631fb2d1908b25bf.
This reverts commit 95132a018f00f5dad38bdcfd4180d1af955d46f6.
This reverts commit 63d5eaf35ac36cad00cfb3809d794ef0078c822b.
This reverts commit c29451aefcb42359905d18678de38e52eccb3bb5.
This reverts commit 2ab0edb505faa9ac90dee1732571390f074e8113.
This reverts commit dedd702a35793ab462fce4c737eeba0badf9718e.
This reverts commit 034fcc210349b873ece7356905be5c6ca11eef2a.
This reverts commit 9c5625f559ad6fe9f6f733c11475bf470e637d34.
This reverts commit 02018c544ef113e980a2349eba89003d6f399d22.

Looks like we need more time for reviews, and incremental
changes will be hard to make sense of. So revert.

Link: https://lore.kernel.org/all/ZZP6FV5sXEf+xd58@shell.armlinux.org.uk/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-04 16:05:47 -08:00
Jakub Kicinski
172b3fccf5 This pull request mainly brings support for dynamic associations in the
WPAN world. Thanks to the recent improvements it was possible to
 discover nearby devices, it is now also possible to associate with them
 to form a sub-network using a specific PAN ID. The support includes
 several functions, such as:
 * Requesting an association to a coordinator, waiting for the response
 * Sending a disassociation notification to a coordinator
 * Receiving an association request when we are coordinator, answering
   the request (for now all devices are accepted up to a limit, to be
   refined)
 * Sending a disassociation notification to a child
 * Users may request the list of associated devices (the parent and the
   children).
 
 Here are a few example of userspace calls that can be made:
 iwpan dev <dev> associate pan_id 2 coord $COORD
 iwpan dev <dev> list_associations
 iwpan dev <dev> disassociate ext_addr $COORD
 
 There are as well two patches from Uwe turning remove callbacks into
 void functions.
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Merge tag 'ieee802154-for-net-next-2023-12-20' of gitolite.kernel.org:pub/scm/linux/kernel/git/wpan/wpan-next

Miquel Raynal says:

====================
This pull request mainly brings support for dynamic associations in
the WPAN world. Thanks to the recent improvements it was possible to
discover nearby devices, it is now also possible to associate with them
to form a sub-network using a specific PAN ID. The support includes
several functions, such as:

* Requesting an association to a coordinator, waiting for the response
* Sending a disassociation notification to a coordinator
* Receiving an association request when we are coordinator, answering
  the request (for now all devices are accepted up to a limit, to be
  refined)
* Sending a disassociation notification to a child
* Users may request the list of associated devices (the parent and the
  children).

Here are a few example of userspace calls that can be made:
 # iwpan dev <dev> associate pan_id 2 coord $COORD
 # iwpan dev <dev> list_associations
 # iwpan dev <dev> disassociate ext_addr $COORD

There are as well two patches from Uwe turning remove callbacks into
void functions.

* tag 'ieee802154-for-net-next-2023-12-20' of gitolite.kernel.org:pub/scm/linux/kernel/git/wpan/wpan-next:
  mac802154: Avoid new associations while disassociating
  ieee802154: Avoid confusing changes after associating
  mac802154: Only allow PAN controllers to process association requests
  mac802154: Use the PAN coordinator parameter when stamping packets
  mac80254: Provide real PAN coordinator info in beacons
  ieee802154: Give the user the association list
  mac802154: Handle disassociation notifications from peers
  mac802154: Follow the number of associated devices
  ieee802154: Add support for limiting the number of associated devices
  mac802154: Handle association requests from peers
  mac802154: Handle disassociations
  ieee802154: Add support for user disassociation requests
  mac802154: Handle associating
  ieee802154: Add support for user association requests
  ieee802154: Internal PAN management
  ieee802154: Let PAN IDs be reset
  ieee802154: hwsim: Convert to platform remove callback returning void
  ieee802154: fakelb: Convert to platform remove callback returning void
====================

Link: https://lore.kernel.org/r/20231220095556.4d9cef91@xps-13
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-04 14:20:14 -08:00
Quentin Deslandes
98e20e5e13 bpfilter: remove bpfilter
bpfilter was supposed to convert iptables filtering rules into
BPF programs on the fly, from the kernel, through a usermode
helper. The base code for the UMH was introduced in 2018, and
couple of attempts (2, 3) tried to introduce the BPF program
generate features but were abandoned.

bpfilter now sits in a kernel tree unused and unusable, occasionally
causing confusion amongst Linux users (4, 5).

As bpfilter is now developed in a dedicated repository on GitHub (6),
it was suggested a couple of times this year (LSFMM/BPF 2023,
LPC 2023) to remove the deprecated kernel part of the project. This
is the purpose of this patch.

[1]: https://lore.kernel.org/lkml/20180522022230.2492505-1-ast@kernel.org/
[2]: https://lore.kernel.org/bpf/20210829183608.2297877-1-me@ubique.spb.ru/#t
[3]: https://lore.kernel.org/lkml/20221224000402.476079-1-qde@naccy.de/
[4]: https://dxuuu.xyz/bpfilter.html
[5]: https://github.com/linuxkit/linuxkit/pull/3904
[6]: https://github.com/facebook/bpfilter

Signed-off-by: Quentin Deslandes <qde@naccy.de>
Link: https://lore.kernel.org/r/20231226130745.465988-1-qde@naccy.de
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-04 10:23:10 -08:00
Thomas Lange
382a32018b net: Implement missing SO_TIMESTAMPING_NEW cmsg support
Commit 9718475e6908 ("socket: Add SO_TIMESTAMPING_NEW") added the new
socket option SO_TIMESTAMPING_NEW. However, it was never implemented in
__sock_cmsg_send thus breaking SO_TIMESTAMPING cmsg for platforms using
SO_TIMESTAMPING_NEW.

Fixes: 9718475e6908 ("socket: Add SO_TIMESTAMPING_NEW")
Link: https://lore.kernel.org/netdev/6a7281bf-bc4a-4f75-bb88-7011908ae471@app.fastmail.com/
Signed-off-by: Thomas Lange <thomas@corelatus.se>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240104085744.49164-1-thomas@corelatus.se
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-04 08:18:55 -08:00
Eric Dumazet
a562c0a2d6 sctp: fix busy polling
Busy polling while holding the socket lock makes litle sense,
because incoming packets wont reach our receive queue.

Fixes: 8465a5fcd1ce ("sctp: add support for busy polling to sctp protocol")
Reported-by: Jacob Moroni <jmoroni@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Cc: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-04 10:29:18 +00:00
Mina Almasry
b15a4cfe10 net: kcm: fix direct access to bv_len
Minor fix for kcm: code wanting to access the fields inside an skb
frag should use the skb_frag_*() helpers, instead of accessing the
fields directly.

Signed-off-by: Mina Almasry <almasrymina@google.com>
Link: https://lore.kernel.org/r/20240102205959.794513-1-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 18:37:22 -08:00
Mina Almasry
06d9b446c4 vsock/virtio: use skb_frag_*() helpers
Minor fix for virtio: code wanting to access the fields inside an skb
frag should use the skb_frag_*() helpers, instead of accessing the
fields directly. This allows for extensions where the underlying
memory is not a page.

Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Link: https://lore.kernel.org/r/20240102205905.793738-1-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 18:37:16 -08:00
Pedro Tammela
530496985c net/sched: sch_api: conditional netlink notifications
Implement conditional netlink notifications for Qdiscs and classes,
which were missing in the initial patches that targeted tc filters and
actions. Notifications will only be built after passing a check for
'rtnl_notify_needed()'.

For both Qdiscs and classes 'get' operations now call a dedicated
notification function as it was not possible to distinguish between
'create' and 'get' before. This distinction is necessary because 'get'
always send a notification.

Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://lore.kernel.org/r/20231229132642.1489088-2-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 18:36:30 -08:00
Pedro Tammela
c2a67de9bb net/sched: introduce ACT_P_BOUND return code
Bound actions always return '0' and as of today we rely on '0'
being returned in order to properly skip bound actions in
tcf_idr_insert_many. In order to further improve maintainability,
introduce the ACT_P_BOUND return code.

Actions are updated to return 'ACT_P_BOUND' instead of plain '0'.
tcf_idr_insert_many is then updated to check for 'ACT_P_BOUND'.

Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://lore.kernel.org/r/20231229132642.1489088-1-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 18:36:24 -08:00
Eric Dumazet
d3d344a1ca net-device: move xdp_prog to net_device_read_rx
xdp_prog is used in receive path, both from XDP enabled drivers
and from netif_elide_gro().

This patch also removes two 4-bytes holes.

Fixes: 43a71cd66b9c ("net-device: reorganize net_device fast path variables")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240102162220.750823-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 18:09:14 -08:00
Jakub Kicinski
cbc74fc025 netfilter pull request 24-01-03
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Merge tag 'nf-24-01-03' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Fix nat packets in the related state in OVS, from Brad Cowie.

2) Drop chain reference counter on error path in case chain binding
   fails.

* tag 'nf-24-01-03' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nft_immediate: drop chain reference counter on error
  netfilter: nf_nat: fix action not being set for all ct states
====================

Link: https://lore.kernel.org/r/20240103113001.137936-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 18:05:23 -08:00
Wen Gu
9dbe086c69 net/smc: fix invalid link access in dumping SMC-R connections
A crash was found when dumping SMC-R connections. It can be reproduced
by following steps:

- environment: two RNICs on both sides.
- run SMC-R between two sides, now a SMC_LGR_SYMMETRIC type link group
  will be created.
- set the first RNIC down on either side and link group will turn to
  SMC_LGR_ASYMMETRIC_LOCAL then.
- run 'smcss -R' and the crash will be triggered.

 BUG: kernel NULL pointer dereference, address: 0000000000000010
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 8000000101fdd067 P4D 8000000101fdd067 PUD 10ce46067 PMD 0
 Oops: 0000 [#1] PREEMPT SMP PTI
 CPU: 3 PID: 1810 Comm: smcss Kdump: loaded Tainted: G W   E      6.7.0-rc6+ #51
 RIP: 0010:__smc_diag_dump.constprop.0+0x36e/0x620 [smc_diag]
 Call Trace:
  <TASK>
  ? __die+0x24/0x70
  ? page_fault_oops+0x66/0x150
  ? exc_page_fault+0x69/0x140
  ? asm_exc_page_fault+0x26/0x30
  ? __smc_diag_dump.constprop.0+0x36e/0x620 [smc_diag]
  smc_diag_dump_proto+0xd0/0xf0 [smc_diag]
  smc_diag_dump+0x26/0x60 [smc_diag]
  netlink_dump+0x19f/0x320
  __netlink_dump_start+0x1dc/0x300
  smc_diag_handler_dump+0x6a/0x80 [smc_diag]
  ? __pfx_smc_diag_dump+0x10/0x10 [smc_diag]
  sock_diag_rcv_msg+0x121/0x140
  ? __pfx_sock_diag_rcv_msg+0x10/0x10
  netlink_rcv_skb+0x5a/0x110
  sock_diag_rcv+0x28/0x40
  netlink_unicast+0x22a/0x330
  netlink_sendmsg+0x240/0x4a0
  __sock_sendmsg+0xb0/0xc0
  ____sys_sendmsg+0x24e/0x300
  ? copy_msghdr_from_user+0x62/0x80
  ___sys_sendmsg+0x7c/0xd0
  ? __do_fault+0x34/0x1a0
  ? do_read_fault+0x5f/0x100
  ? do_fault+0xb0/0x110
  __sys_sendmsg+0x4d/0x80
  do_syscall_64+0x45/0xf0
  entry_SYSCALL_64_after_hwframe+0x6e/0x76

When the first RNIC is set down, the lgr->lnk[0] will be cleared and an
asymmetric link will be allocated in lgr->link[SMC_LINKS_PER_LGR_MAX - 1]
by smc_llc_alloc_alt_link(). Then when we try to dump SMC-R connections
in __smc_diag_dump(), the invalid lgr->lnk[0] will be accessed, resulting
in this issue. So fix it by accessing the right link.

Fixes: f16a7dd5cf27 ("smc: netlink interface for SMC sockets")
Reported-by: henaumars <henaumars@sina.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7616
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Link: https://lore.kernel.org/r/1703662835-53416-1-git-send-email-guwen@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 16:53:17 -08:00
John Fastabend
16b2f26498 bpf: sockmap, fix proto update hook to avoid dup calls
When sockets are added to a sockmap or sockhash we allocate and init a
psock. Then update the proto ops with sock_map_init_proto the flow is

  sock_hash_update_common
    sock_map_link
      psock = sock_map_psock_get_checked() <-returns existing psock
      sock_map_init_proto(sk, psock)       <- updates sk_proto

If the socket is already in a map this results in the sock_map_init_proto
being called multiple times on the same socket. We do this because when
a socket is added to multiple maps this might result in a new set of BPF
programs being attached to the socket requiring an updated ops struct.

This creates a rule where it must be safe to call psock_update_sk_prot
multiple times. When we added a fix for UAF through unix sockets in patch
4dd9a38a753fc we broke this rule by adding a sock_hold in that path
to ensure the sock is not released. The result is if a af_unix stream sock
is placed in multiple maps it results in a memory leak because we call
sock_hold multiple times with only a single sock_put on it.

Fixes: 8866730aed51 ("bpf, sockmap: af_unix stream sockets need to hold ref for pair sock")
Reported-by: Xingwei Lee <xrivendell7@gmail.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/20231221232327.43678-2-john.fastabend@gmail.com
2024-01-03 16:50:06 -08:00
Zhengchao Shao
b4c1d4d973 fib: remove unnecessary input parameters in fib_default_rule_add
When fib_default_rule_add is invoked, the value of the input parameter
'flags' is always 0. Rules uses kzalloc to allocate memory, so 'flags' has
been initialized to 0. Therefore, remove the input parameter 'flags' in
fib_default_rule_add.

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240102071519.3781384-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-03 16:42:48 -08:00
Johannes Berg
3aca362a4c wifi: mac80211: remove redundant ML element check
If "ml_basic" is assigned, we already know that the type
of ML element is basic, so we don't need to check again,
that check can never happen. Simplify the code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240102213313.bb9b636e66f6.I7fc0897022142d46f39ac0b912a4f7b0f1b6ea26@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:38 +01:00
Benjamin Berg
d18125b640 wifi: cfg80211: parse all ML elements in an ML probe response
A probe response from a transmitting AP in an Multi-BSSID setup will
contain more than one Multi-Link element. Most likely, only one of these
elements contains per-STA profiles.

Fixes: 2481b5da9c6b ("wifi: cfg80211: handle BSS data contained in ML probe responses")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240102213313.6635eb152735.I94289002d4a2f7b6b44dfa428344854e37b0b29c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:36 +01:00
Benjamin Berg
2a0698f86d wifi: cfg80211: correct comment about MLD ID
The comment was referencing the wrong section of the documentation and
was also subtly wrong as it assumed the rules that apply when sending
probe requests directly to a nontransmitted AP. However, in that case
the response comes from the transmitting AP and the AP MLD ID will be
included.

Fixes: 2481b5da9c6b ("wifi: cfg80211: handle BSS data contained in ML probe responses")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240102213313.0917ab4b5d7f.I76aff0e261a5de44ffb467e591a46597a30d7c0a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:31 +01:00
Ilan Peer
6fdb8b8781 wifi: cfg80211: Update the default DSCP-to-UP mapping
The default DSCP-to-UP mapping method defined in RFC8325
applied to packets marked per recommendations in RFC4594 and
destined to 802.11 WLAN clients will yield a number of inconsistent
QoS mappings.

To handle this, modify the mapping of specific DSCP values for
which the default mapping will create inconsistencies, based on
the recommendations in section 4 in RFC8325.

Note: RFC8235 is used as it referenced by both IEEE802.11Revme_D4.0
and WFA QoS Management Specification.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231218093005.3064013-1-ilan.peer@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:26 +01:00
Benjamin Berg
9d027a35a5 wifi: cfg80211: tests: add some scanning related tests
This adds some scanning related tests, mainly exercising the ML element
parsing and inheritance.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://msgid.link/20231220151952.415232-7-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:22 +01:00
Johannes Berg
bbd97bbed0 wifi: mac80211: kunit: extend MFP tests
Extend the MFP tests to handle the case of deauth/disassoc
and robust action frames (that are not protected dual of
public action frames).

Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20231220151952.415232-6-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:19 +01:00
Johannes Berg
951c4684a3 wifi: mac80211: kunit: generalize public action test
Generalize the test to be able to handle arbitrary
action categories and non-action frames, for further
test expansion.

Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20231220151952.415232-5-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:13 +01:00
Johannes Berg
0738e55c38 wifi: mac80211: add kunit tests for public action handling
Check the logic in ieee80211_drop_unencrypted_mgmt()
according to a list of test cases derived from the
spec.

Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://msgid.link/20231220151952.415232-4-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:35:09 +01:00
Zheng tan
a5bb4e1a37 wifi: mac80211: fix spelling typo in comment
Fix spelling of "attributes" in a comment.

Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Zheng tan <tanzheng@kylinos.cn>
Link: https://msgid.link/20240102015418.3673858-1-tanzheng@kylinos.cn
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:34:56 +01:00
Edward Adam Davis
1184950e34 wifi: cfg80211: fix RCU dereference in __cfg80211_bss_update
Replace rcu_dereference() with rcu_access_pointer() since we hold
the lock here (and aren't in an RCU critical section).

Fixes: 32af9a9e1069 ("wifi: cfg80211: free beacon_ies when overridden from hidden BSS")
Reported-and-tested-by: syzbot+864a269c27ee06b58374@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Link: https://msgid.link/tencent_BF8F0DF0258C8DBF124CDDE4DD8D992DCF07@qq.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03 15:34:53 +01:00
Lin Ma
2ab1efad60 net/sched: cls_api: complement tcf_tfilter_dump_policy
In function `tc_dump_tfilter`, the attributes array is parsed via
tcf_tfilter_dump_policy which only describes TCA_DUMP_FLAGS. However,
the NLA TCA_CHAIN is also accessed with `nla_get_u32`.

The access to TCA_CHAIN is introduced in commit 5bc1701881e3 ("net:
sched: introduce multichain support for filters") and no nla_policy is
provided for parsing at that point. Later on, tcf_tfilter_dump_policy is
introduced in commit f8ab1807a9c9 ("net: sched: introduce terse dump
flag") while still ignoring the fact that TCA_CHAIN needs a check. This
patch does that by complementing the policy to allow the access
discussed here can be safe as other cases just choose rtm_tca_policy as
the parsing policy.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-03 11:54:39 +00:00
Marc Dionne
01b2885d94 net: Save and restore msg_namelen in sock_sendmsg
Commit 86a7e0b69bd5 ("net: prevent rewrite of msg_name in
sock_sendmsg()") made sock_sendmsg save the incoming msg_name pointer
and restore it before returning, to insulate the caller against
msg_name being changed by the called code.  If the address length
was also changed however, we may return with an inconsistent structure
where the length doesn't match the address, and attempts to reuse it may
lead to lost packets.

For example, a kernel that doesn't have commit 1c5950fc6fe9 ("udp6: fix
potential access to stale information") will replace a v4 mapped address
with its ipv4 equivalent, and shorten namelen accordingly from 28 to 16.
If the caller attempts to reuse the resulting msg structure, it will have
the original ipv6 (v4 mapped) address but an incorrect v4 length.

Fixes: 86a7e0b69bd5 ("net: prevent rewrite of msg_name in sock_sendmsg()")
Signed-off-by: Marc Dionne <marc.dionne@auristor.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-03 11:37:57 +00:00
Pablo Neira Ayuso
b29be0ca8e netfilter: nft_immediate: drop chain reference counter on error
In the init path, nft_data_init() bumps the chain reference counter,
decrement it on error by following the error path which calls
nft_data_release() to restore it.

Fixes: 4bedf9eee016 ("netfilter: nf_tables: fix chain binding transaction logic")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-01-03 11:17:17 +01:00
Brad Cowie
e6345d2824 netfilter: nf_nat: fix action not being set for all ct states
This fixes openvswitch's handling of nat packets in the related state.

In nf_ct_nat_execute(), which is called from nf_ct_nat(), ICMP/ICMPv6
packets in the IP_CT_RELATED or IP_CT_RELATED_REPLY state, which have
not been dropped, will follow the goto, however the placement of the
goto label means that updating the action bit field will be bypassed.

This causes ovs_nat_update_key() to not be called from ovs_ct_nat()
which means the openvswitch match key for the ICMP/ICMPv6 packet is not
updated and the pre-nat value will be retained for the key, which will
result in the wrong openflow rule being matched for that packet.

Move the goto label above where the action bit field is being set so
that it is updated in all cases where the packet is accepted.

Fixes: ebddb1404900 ("net: move the nat function to nf_nat_ovs for ovs and tc")
Signed-off-by: Brad Cowie <brad@faucet.nz>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-01-03 11:17:17 +01:00
Gerhard Engleder
501869fecf net: ethtool: Fix symmetric-xor RSS RX flow hash check
Commit 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash")
adds a check to the ethtool set_rxnfc operation, which checks the RX
flow hash if the flag RXH_XFRM_SYM_XOR is set. This flag is introduced
with the same commit. It calls the ethtool get_rxfh operation to get the
RX flow hash data. If get_rxfh is not supported, then EOPNOTSUPP is
returned.

There are driver like tsnep, macb, asp2, genet, gianfar, mtk, ... which
support the ethtool operation set_rxnfc but not get_rxfh. This results
in EOPNOTSUPP returned by ethtool_set_rxnfc() without actually calling
the ethtool operation set_rxnfc. Thus, set_rxnfc got broken for all
these drivers.

Check RX flow hash in ethtool_set_rxnfc() only if driver supports RX
flow hash.

Fixes: 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash")
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Link: https://lore.kernel.org/r/20231226205536.32003-1-gerhard@engleder-embedded.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-02 16:19:18 -08:00
Paolo Abeni
4c0288299f mptcp: prevent tcp diag from closing listener subflows
The MPTCP protocol does not expect that any other entity could change
the first subflow status when such socket is listening.
Unfortunately the TCP diag interface allows aborting any TCP socket,
including MPTCP listeners subflows. As reported by syzbot, that trigger
a WARN() and could lead to later bigger trouble.

The MPTCP protocol needs to do some MPTCP-level cleanup actions to
properly shutdown the listener. To keep the fix simple, prevent
entirely the diag interface from stopping such listeners.

We could refine the diag callback in a later, larger patch targeting
net-next.

Fixes: 57fc0f1ceaa4 ("mptcp: ensure listener is unhashed before updating the sk status")
Cc: stable@vger.kernel.org
Reported-by: <syzbot+5a01c3a666e726bc8752@syzkaller.appspotmail.com>
Closes: https://lore.kernel.org/netdev/0000000000004f4579060c68431b@google.com/
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20231226-upstream-net-20231226-mptcp-prevent-warn-v1-2-1404dcc431ea@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-02 16:12:47 -08:00
Ahmed Zaki
0dd415d155 net: ethtool: add a NO_CHANGE uAPI for new RXFH's input_xfrm
Add a NO_CHANGE uAPI value for the new RXFH/RSS input_xfrm uAPI field.
This needed so that user-space can set other RSS values (hkey or indir
table) without affecting input_xfrm.

Should have been part of [1].

Link: https://lore.kernel.org/netdev/20231213003321.605376-1-ahmed.zaki@intel.com/ [1]
Fixes: 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash")
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231221184235.9192-3-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-02 16:00:06 -08:00
Ahmed Zaki
7c402f77e8 net: ethtool: copy input_xfrm to user-space in ethtool_get_rxfh
The ioctl path of ethtool's get channels is missing the final step of
copying the new input_xfrm field to user-space. This should have been
part of [1].

Link: https://lore.kernel.org/netdev/20231213003321.605376-1-ahmed.zaki@intel.com/ [1]
Fixes: 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash")
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231221184235.9192-2-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-02 16:00:06 -08:00
Alex Henrie
8cdafdd946 Revert "net: ipv6/addrconf: clamp preferred_lft to the minimum required"
The commit had a bug and might not have been the right approach anyway.

Fixes: 629df6701c8a ("net: ipv6/addrconf: clamp preferred_lft to the minimum required")
Fixes: ec575f885e3e ("Documentation: networking: explain what happens if temp_prefered_lft is too small or too large")
Reported-by: Dan Moulding <dan@danm.net>
Closes: https://lore.kernel.org/netdev/20231221231115.12402-1-dan@danm.net/
Link: https://lore.kernel.org/netdev/CAMMLpeTdYhd=7hhPi2Y7pwdPCgnnW5JYh-bu3hSc7im39uxnEA@mail.gmail.com/
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20231230043252.10530-1-alexhenrie24@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-02 14:58:46 -08:00
David S. Miller
8a48a2dc24 bluetooth-next pull request for net-next:
- btnxpuart: Fix recv_buf return value
  - L2CAP: Fix responding with multiple rejects
  - Fix atomicity violation in {min,max}_key_size_set
  - ISO: Allow binding a PA sync socket
  - ISO: Reassociate a socket with an active BIS
  - ISO: Avoid creating child socket if PA sync is terminating
  - Add device 13d3:3572 IMC Networks Bluetooth Radio
  - Don't suspend when there are connections
  - Remove le_restart_scan work
  - Fix bogus check for re-auth not supported with non-ssp
  - lib: Add documentation to exported functions
  - Support HFP offload for QCA2066
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Merge tag 'for-net-next-2023-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

Luiz Augusto von Dentz says:

====================
bluetooth-next pull request for net-next:

 - btnxpuart: Fix recv_buf return value
 - L2CAP: Fix responding with multiple rejects
 - Fix atomicity violation in {min,max}_key_size_set
 - ISO: Allow binding a PA sync socket
 - ISO: Reassociate a socket with an active BIS
 - ISO: Avoid creating child socket if PA sync is terminating
 - Add device 13d3:3572 IMC Networks Bluetooth Radio
 - Don't suspend when there are connections
 - Remove le_restart_scan work
 - Fix bogus check for re-auth not supported with non-ssp
 - lib: Add documentation to exported functions
 - Support HFP offload for QCA2066
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-02 13:43:23 +00:00
Geliang Tang
c693a85164 mptcp: use mptcp_set_state
This patch replaces all the 'inet_sk_state_store()' calls under net/mptcp
with the new helper mptcp_set_state().

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/460
Signed-off-by: Geliang Tang <geliang.tang@linux.dev>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-02 13:33:33 +00:00
Geliang Tang
d9cd27b8cd mptcp: add CurrEstab MIB counter support
Add a new MIB counter named MPTCP_MIB_CURRESTAB to count current
established MPTCP connections, similar to TCP_MIB_CURRESTAB. This is
useful to quickly list the number of MPTCP connections without having to
iterate over all of them.

This patch adds a new helper function mptcp_set_state(): if the state
switches from or to ESTABLISHED state, this newly added counter is
incremented. This helper is going to be used in the following patch.

Similar to MPTCP_INC_STATS(), a new helper called MPTCP_DEC_STATS() is
also needed to decrement a MIB counter.

Signed-off-by: Geliang Tang <geliang.tang@linux.dev>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-02 13:32:45 +00:00