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The checksum and fail counters might not be available. Then no need to
display an extra message with missing info.
While at it, fix the indentation around, which is wrong since the same
commit.
Fixes: 47867f0a7e83 ("selftests: mptcp: join: skip check if MIB counter not supported")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The initial subflow has a special local ID: 0. It is specific per
connection.
When a global endpoint is deleted and re-added later, it can have a
different ID, but the kernel should still use the ID 0 if it corresponds
to the initial address.
This test validates this behaviour: the endpoint linked to the initial
subflow is removed, and re-added with a different ID.
Note that removing the initial subflow will not decrement the 'subflows'
counters, which corresponds to the *additional* subflows. On the other
hand, when the same endpoint is re-added, it will increment this
counter, as it will be seen as an additional subflow this time.
The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.
Fixes: 3ad14f54bd74 ("mptcp: more accurate MPC endpoint tracking")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The initial subflow has a special local ID: 0. It is specific per
connection.
When a global endpoint is deleted and re-added later, it can have a
different ID -- most services managing the endpoints automatically don't
force the ID to be the same as before. It is then important to track
these modifications to be consistent with the ID being used for the
address used by the initial subflow, not to confuse the other peer or to
send the ID 0 for the wrong address.
Now when removing an endpoint, msk->mpc_endpoint_id is reset if it
corresponds to this endpoint. When adding a new endpoint, the same
variable is updated if the address match the one of the initial subflow.
Fixes: 3ad14f54bd74 ("mptcp: more accurate MPC endpoint tracking")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The lookup_subflow_by_daddr() helper checks if there is already a
subflow connected to this address. But there could be a subflow that is
closing, but taking time due to some reasons: latency, losses, data to
process, etc.
If an ADD_ADDR is received while the endpoint is being closed, it is
better to try connecting to it, instead of rejecting it: the peer which
has sent the ADD_ADDR will not be notified that the ADD_ADDR has been
rejected for this reason, and the expected subflow will not be created
at the end.
This helper should then only look for subflows that are established, or
going to be, but not the ones being closed.
Fixes: d84ad04941c3 ("mptcp: skip connecting the connected address")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Taking the first one on the list doesn't work in some cases, e.g. if the
initial subflow is being removed. Pick another one instead of not
sending anything.
Fixes: 84dfe3677a6f ("mptcp: send out dedicated ADD_ADDR packet")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Removing the endpoint linked to the initial subflow should trigger a
RM_ADDR for the right ID, and the removal of the subflow. That's what is
now being verified in the "delete and re-add" test.
Note that removing the initial subflow will not decrement the 'subflows'
counters, which corresponds to the *additional* subflows. On the other
hand, when the same endpoint is re-added, it will increment this
counter, as it will be seen as an additional subflow this time.
The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.
Fixes: 3ad14f54bd74 ("mptcp: more accurate MPC endpoint tracking")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The initial subflow has a special local ID: 0. When an endpoint is being
deleted, it is then important to check if its address is not linked to
the initial subflow to send the right ID.
If there was an endpoint linked to the initial subflow, msk's
mpc_endpoint_id field will be set. We can then use this info when an
endpoint is being removed to see if it is linked to the initial subflow.
So now, the correct IDs are passed to mptcp_pm_nl_rm_addr_or_subflow(),
it is no longer needed to use mptcp_local_id_match().
Fixes: 3ad14f54bd74 ("mptcp: more accurate MPC endpoint tracking")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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When the endpoint used by the initial subflow is removed and re-added
later, the PM has to force the ID 0, it is a special case imposed by the
MPTCP specs.
Note that the endpoint should then need to be re-added reusing the same
ID.
Fixes: 3ad14f54bd74 ("mptcp: more accurate MPC endpoint tracking")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The sctp selftest is very slow on debug kernels.
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20240826192500.32efa22c@kernel.org/
Fixes: 4e97d521c2be ("selftests: netfilter: nft_queue.sh: sctp coverage")
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20240827090023.8917-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator fix from Jason Donenfeld:
"Reject invalid flags passed to vgetrandom() in the same way that
getrandom() does, so that the behavior is the same, from Yann.
The flags argument to getrandom() only has a behavioral effect on the
function if the RNG isn't initialized yet, so vgetrandom() falls back
to the syscall in that case. But if the RNG is initialized, all of the
flags behave the same way, so vgetrandom() didn't bother checking
them, and just ignored them entirely.
But that doesn't account for invalid flags passed in, which need to be
rejected so we can use them later"
* tag 'random-6.11-rc6-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
random: vDSO: reject unknown getrandom() flags
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Krzysztof Kozlowski says:
====================
net: hisilicon: minor fixes
Minor fixes for hisilicon ethernet driver which look too trivial to be
considered for current RC.
====================
Link: https://patch.msgid.link/20240827144421.52852-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Driver is leaking OF node reference from
of_parse_phandle_with_fixed_args() in probe().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240827144421.52852-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Driver is leaking OF node reference from
of_parse_phandle_with_fixed_args() in hns_mac_get_info().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240827144421.52852-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Driver is leaking OF node reference from
of_parse_phandle_with_fixed_args() in probe().
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240827144421.52852-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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GPIOF_DIR_* definitions are legacy and subject to remove.
Taking this into account, remove stale comment.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240827171005.2301845-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Typically, busy-polling durations are below 100 usec.
When/if the busy-poller thread migrates to another cpu,
local_clock() can be off by +/-2msec or more for small
values of HZ, depending on the platform.
Use ktimer_get_ns() to ensure deterministic behavior,
which is the whole point of busy-polling.
Fixes: 060212928670 ("net: add low latency socket poll")
Fixes: 9a3c71aa8024 ("net: convert low latency sockets to sched_clock()")
Fixes: 37089834528b ("sched, net: Fixup busy_loop_us_clock()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Link: https://patch.msgid.link/20240827114916.223377-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use the correct logic to check for the presence of a PHY device, and
jump to a label that correctly releases RTNL in case of an error, as we
are holding RTNL at that point.
Fixes: 3688ff3077d3 ("net: ethtool: cable-test: Target the command to the requested PHY")
Closes: https://lore.kernel.org/netdev/20240827104825.5cbe0602@fedora-3.home/T/#m6bc49cdcc5cfab0d162516b92916b944a01c833f
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20240827092314.2500284-1-maxime.chevallier@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Change VMBus channels macro (VRSS_CHANNEL_DEFAULT) in
Linux netvsc from 8 to 16 to align with Azure Windows VM
and improve networking throughput.
For VMs having less than 16 vCPUS, the channels depend
on number of vCPUs. For greater than 16 vCPUs,
set the channels to maximum of VRSS_CHANNEL_DEFAULT and
number of physical cores / 2 which is returned by
netif_get_num_default_rss_queues() as a way to optimize CPU
resource utilization and scale for high-end processors with
many cores.
Maximum number of channels are by default set to 64.
Based on this change the channel creation would change as follows:
-----------------------------------------------------------------
| No. of vCPU | dev_info->num_chn | channels created |
-----------------------------------------------------------------
| 1-16 | 16 | vCPU |
| >16 | max(16,#cores/2) | min(64 , max(16,#cores/2)) |
-----------------------------------------------------------------
Performance tests showed significant improvement in throughput:
- 0.54% for 16 vCPUs
- 0.83% for 32 vCPUs
- 0.86% for 48 vCPUs
- 9.72% for 64 vCPUs
- 13.57% for 96 vCPUs
Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Link: https://patch.msgid.link/1724735791-22815-1-git-send-email-ernis@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ethtool of this driver uses the phy API of ethtool
to get the link information from PHY driver.
Because the NC-SI is forced on 100Mbps and full duplex,
the driver connect a fixed-link phy driver for NC-SI.
The ethtool will get the link information from the
fixed-link phy driver.
Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240827030513.481469-1-jacky_chou@aspeedtech.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Eric Dumazet says:
====================
tcp: take better care of tw_substate and tw_rcv_nxt
While reviewing Jason Xing recent commit (0d9e5df4a257 "tcp: avoid reusing
FIN_WAIT2 when trying to find port in connect() process") I saw
we could remove the volatile qualifier for tw_substate field,
and I also added missing data-race annotations around tcptw->tw_rcv_nxt.
====================
Link: https://patch.msgid.link/20240827015250.3509197-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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No lock protects tcp tw fields.
tcptw->tw_rcv_nxt can be changed from twsk_rcv_nxt_update()
while other threads might read this field.
Add READ_ONCE()/WRITE_ONCE() annotations, and make sure
tcp_timewait_state_process() reads tcptw->tw_rcv_nxt only once.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Link: https://patch.msgid.link/20240827015250.3509197-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Using a volatile qualifier for a specific struct field is unusual.
Use instead READ_ONCE()/WRITE_ONCE() where necessary.
tcp_timewait_state_process() can change tw_substate while other
threads are reading this field.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Link: https://patch.msgid.link/20240827015250.3509197-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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During the list_for_each_entry_rcu iteration call of xenvif_flush_hash,
kfree_rcu does not exist inside the rcu read critical section, so if
kfree_rcu is called when the rcu grace period ends during the iteration,
UAF occurs when accessing head->next after the entry becomes free.
Therefore, to solve this, you need to change it to list_for_each_entry_safe.
Signed-off-by: Jeongjun Park <aha310510@gmail.com>
Link: https://patch.msgid.link/20240822181109.2577354-1-aha310510@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Regressions:
* wfx: fix for open network connection
* iwlwifi: fix for hibernate (due to fast resume feature)
* iwlwifi: fix for a few warnings that were recently added
(had previously been messages not warnings)
Previously broken:
* mwifiex: fix static structures used for per-device data
* iwlwifi: some harmless FW related messages were tagged
too high priority
* iwlwifi: scan buffers weren't checked correctly
* mac80211: SKB leak on beacon error path
* iwlwifi: fix ACPI table interop with certain BIOSes
* iwlwifi: fix locking for link selection
* mac80211: fix SSID comparison in beacon validation
* tag 'wireless-2024-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: iwlwifi: clear trans->state earlier upon error
wifi: wfx: repair open network AP mode
wifi: mac80211: free skb on error path in ieee80211_beacon_get_ap()
wifi: iwlwifi: mvm: don't wait for tx queues if firmware is dead
wifi: iwlwifi: mvm: allow 6 GHz channels in MLO scan
wifi: iwlwifi: mvm: pause TCM when the firmware is stopped
wifi: iwlwifi: fw: fix wgds rev 3 exact size
wifi: iwlwifi: mvm: take the mutex before running link selection
wifi: iwlwifi: mvm: fix iwl_mvm_max_scan_ie_fw_cmd_room()
wifi: iwlwifi: mvm: fix iwl_mvm_scan_fits() calculation
wifi: iwlwifi: lower message level for FW buffer destination
wifi: iwlwifi: mvm: fix hibernation
wifi: mac80211: fix beacon SSID mismatch handling
wifi: mwifiex: duplicate static structs used in driver instances
====================
Link: https://patch.msgid.link/20240828100151.23662-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Remove the unused dma-direct.h, and some bug & warning fixes"
* tag 'loongarch-fixes-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Invalidate guest steal time address on vCPU reset
LoongArch: Add ifdefs to fix LSX and LASX related warnings
LoongArch: Define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE
LoongArch: Remove the unused dma-direct.h
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Ilpo Järvinen:
- platform/x86/amd/pmc: AMD 1Ah model 60h series support (2nd attempt)
- asus-wmi: Prevent spurious rfkill on Asus Zenbook Duo
- x86-android-tablets: Relax DMI match to cover another model
* tag 'platform-drivers-x86-v6.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: x86-android-tablets: Make Lenovo Yoga Tab 3 X90F DMI match less strict
platform/x86: asus-wmi: Fix spurious rfkill on UX8406MA
platform/x86/amd/pmc: Extend support for PMC features on new AMD platform
platform/x86/amd/pmc: Fix SMU command submission path on new AMD platform
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix a number of crashers
- Update email address for an NFSD reviewer
* tag 'nfsd-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
fs/nfsd: fix update of inode attrs in CB_GETATTR
nfsd: fix potential UAF in nfsd4_cb_getattr_release
nfsd: hold reference to delegation when updating it for cb_getattr
MAINTAINERS: Update Olga Kornievskaia's email address
nfsd: prevent panic for nfsv4.0 closed files in nfs4_show_open
nfsd: ensure that nfsd4_fattr_args.context is zeroed out
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix use-after-free when submitting bios for read, after an error and
partially submitted bio the original one is freed while it can be
still be accessed again
- fix fstests case btrfs/301, with enabled quotas wait for delayed
iputs when flushing delalloc
- fix periodic block group reclaim, an unitialized value can be
returned if there are no block groups to reclaim
- fix build warning (-Wmaybe-uninitialized)
* tag 'for-6.11-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix uninitialized return value from btrfs_reclaim_sweep()
btrfs: fix a use-after-free when hitting errors inside btrfs_submit_chunk()
btrfs: initialize last_extent_end to fix -Wmaybe-uninitialized warning in extent_fiemap()
btrfs: run delayed iputs when flushing delalloc
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Pull smb client fixes from Steve French:
- two RDMA/smbdirect fixes and a minor cleanup
- punch hole fix
* tag 'v6.11-rc5-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix FALLOC_FL_PUNCH_HOLE support
smb/client: fix rdma usage in smb2_async_writev()
smb/client: remove unused rq_iter_size from struct smb_rqst
smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()
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git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull TPM fix from Jarkko Sakkinen:
"A bug fix for tpm_ibmvtpm driver so that it will take the bus
encryption into use"
* tag 'tpmdd-next-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: ibmvtpm: Call tpm2_sessions_init() to initialize session support
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2024-08-26 (ice)
This series contains updates to ice driver only.
Jake implements and uses rd32_poll_timeout to replace a jiffies loop for
calling ice_sq_done. The rd32_poll_timeout() function is designed to allow
simplifying other places in the driver where we need to read a register
until it matches a known value.
Jake, Bruce, and Przemek update ice_debug_cq() to be more robust, and more
useful for tracing control queue messages sent and received by the device
driver.
Jake rewords several commands in the ice_control.c file which previously
referred to the "Admin queue" when they were actually generic functions
usable on any control queue.
Jake removes the unused and unnecessary cmd_buf array allocation for send
queues. This logic originally was going to be useful if we ever implemented
asynchronous completion of transmit messages. This support is unlikely to
materialize, so the overhead of allocating a command buffer is unnecessary.
Sergey improves the log messages when the ice driver reports that the NVM
version on the device is not supported by the driver. Now, these messages
include both the discovered NVM version and the requested/expected NVM
version.
Aleksandr Mishin corrects overallocation of memory related to adding
scheduler nodes.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ice: Adjust over allocation of memory in ice_sched_add_root_node() and ice_sched_add_node()
ice: Report NVM version numbers on mismatch during load
ice: remove unnecessary control queue cmd_buf arrays
ice: reword comments referring to control queues
ice: stop intermixing AQ commands/responses debug dumps
ice: do not clutter debug logs with unused data
ice: improve debug print for control queue messages
ice: implement and use rd32_poll_timeout for ice_sq_done timeout
====================
Link: https://patch.msgid.link/20240826224655.133847-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Tristram Ha says:
====================
net: dsa: microchip: Add KSZ8895/KSZ8864 switch support
This series of patches is to add KSZ8895/KSZ8864 switch support to the
KSZ DSA driver.
====================
Link: https://patch.msgid.link/BYAPR11MB3558B8A089C88DFFFC09B067EC8B2@BYAPR11MB3558.namprd11.prod.outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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KSZ8895/KSZ8864 is a switch family between KSZ8863/73 and KSZ8795, so it
shares some registers and functions in those switches already
implemented in the KSZ DSA driver.
Signed-off-by: Tristram Ha <tristram.ha@microchip.com>
Tested-by: Pieter Van Trappen <pieter.van.trappen@cern.ch>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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KSZ8895/KSZ8864 is a switch family developed before KSZ8795 and after
KSZ8863, so it shares some registers and functions in those switches.
KSZ8895 has 5 ports and so is more similar to KSZ8795.
KSZ8864 is a 4-port version of KSZ8895. The first port is removed
while port 5 remains as a host port.
Signed-off-by: Tristram Ha <tristram.ha@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/BYAPR11MB3558FD0717772263FAD86846EC8B2@BYAPR11MB3558.namprd11.prod.outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replace fput() with sockfd_put() in handshake_nl_done_doit().
Signed-off-by: A K M Fazla Mehrab <a.mehrab@bytedance.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20240826182652.2449359-1-a.mehrab@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently the values of WQs for RX and TX queues for MANA devices
are hardcoded to default sizes.
Allow configuring these values for MANA devices as ringparam
configuration(get/set) through ethtool_ops.
Pre-allocate buffers at the beginning of this operation, to
prevent complete network loss in low-memory conditions.
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://patch.msgid.link/1724688461-12203-1-git-send-email-shradhagupta@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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sctp_sf_do_5_2_4_dupcook() currently calls security_sctp_assoc_request()
on new_asoc, but as it turns out, this association is always discarded
and the LSM labels never get into the final association (asoc).
This can be reproduced by having two SCTP endpoints try to initiate an
association with each other at approximately the same time and then peel
off the association into a new socket, which exposes the unitialized
labels and triggers SELinux denials.
Fix it by calling security_sctp_assoc_request() on asoc instead of
new_asoc. Xin Long also suggested limit calling the hook only to cases
A, B, and D, since in cases C and E the COOKIE ECHO chunk is discarded
and the association doesn't enter the ESTABLISHED state, so rectify that
as well.
One related caveat with SELinux and peer labeling: When an SCTP
connection is set up simultaneously in this way, we will end up with an
association that is initialized with security_sctp_assoc_request() on
both sides, so the MLS component of the security context of the
association will get swapped between the peers, instead of just one side
setting it to the other's MLS component. However, at that point
security_sctp_assoc_request() had already been called on both sides in
sctp_sf_do_unexpected_init() (on a temporary association) and thus if
the exchange didn't fail before due to MLS, it won't fail now either
(most likely both endpoints have the same MLS range).
Tested by:
- reproducer from https://src.fedoraproject.org/tests/selinux/pull-request/530
- selinux-testsuite (https://github.com/SELinuxProject/selinux-testsuite/)
- sctp-tests (https://github.com/sctp/sctp-tests) - no tests failed
that wouldn't fail also without the patch applied
Fixes: c081d53f97a1 ("security: pass asoc to sctp_assoc_request and sctp_sk_clone")
Suggested-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Acked-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Paul Moore <paul@paul-moore.com> (LSM/SELinux)
Link: https://patch.msgid.link/20240826130711.141271-1-omosnace@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Matthieu Baerts says:
====================
mptcp: close subflow when receiving TCP+FIN and misc.
Here are different fixes:
Patch 1 closes the subflow after having received a FIN, instead
of leaving it half-closed until the end of the MPTCP connection.
A fix for v5.12.
Patch 2 validates the previous patch.
Patch 3 is a fix for a recent fix to check both directions for the
backup flag. It can follow the 'Fixes' commit and be backported up
to v5.7.
Patch 4 adds a missing \n at the end of pr_debug(), causing debug
messages to be displayed with a delay, which confuses the debugger.
A fix for v5.6.
====================
Link: https://patch.msgid.link/20240826-net-mptcp-close-extra-sf-fin-v1-0-905199fe1172@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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pr_debug() have been added in various places in MPTCP code to help
developers to debug some situations. With the dynamic debug feature, it
is easy to enable all or some of them, and asks users to reproduce
issues with extra debug.
Many of these pr_debug() don't end with a new line, while no 'pr_cont()'
are used in MPTCP code. So the goal was not to display multiple debug
messages on one line: they were then not missing the '\n' on purpose.
Not having the new line at the end causes these messages to be printed
with a delay, when something else needs to be printed. This issue is not
visible when many messages need to be printed, but it is annoying and
confusing when only specific messages are expected, e.g.
# echo "func mptcp_pm_add_addr_echoed +fmp" \
> /sys/kernel/debug/dynamic_debug/control
# ./mptcp_join.sh "signal address"; \
echo "$(awk '{print $1}' /proc/uptime) - end"; \
sleep 5s; \
echo "$(awk '{print $1}' /proc/uptime) - restart"; \
./mptcp_join.sh "signal address"
013 signal address
(...)
10.75 - end
15.76 - restart
013 signal address
[ 10.367935] mptcp:mptcp_pm_add_addr_echoed: MPTCP: msk=(...)
(...)
=> a delay of 5 seconds: printed with a 10.36 ts, but after 'restart'
which was printed at the 15.76 ts.
The 'Fixes' tag here below points to the first pr_debug() used without
'\n' in net/mptcp. This patch could be split in many small ones, with
different Fixes tag, but it doesn't seem worth it, because it is easy to
re-generate this patch with this simple 'sed' command:
git grep -l pr_debug -- net/mptcp |
xargs sed -i "s/\(pr_debug(\".*[^n]\)\(\"[,)]\)/\1\\\n\2/g"
So in case of conflicts, simply drop the modifications, and launch this
command.
Fixes: f870fa0b5768 ("mptcp: Add MPTCP socket stubs")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240826-net-mptcp-close-extra-sf-fin-v1-4-905199fe1172@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 'mptcp_subflow_context' structure has two items related to the
backup flags:
- 'backup': the subflow has been marked as backup by the other peer
- 'request_bkup': the backup flag has been set by the host
Looking only at the 'backup' flag can make sense in some cases, but it
is not the behaviour of the default packet scheduler when selecting
paths.
As explained in the commit b6a66e521a20 ("mptcp: sched: check both
directions for backup"), the packet scheduler should look at both flags,
because that was the behaviour from the beginning: the 'backup' flag was
set by accident instead of the 'request_bkup' one. Now that the latter
has been fixed, get_retrans() needs to be adapted as well.
Fixes: b6a66e521a20 ("mptcp: sched: check both directions for backup")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240826-net-mptcp-close-extra-sf-fin-v1-3-905199fe1172@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Thanks to the previous commit, the MPTCP subflows are now closed on both
directions even when only the MPTCP path-manager of one peer asks for
their closure.
In the two tests modified here -- "userspace pm add & remove address"
and "userspace pm create destroy subflow" -- one peer is controlled by
the userspace PM, and the other one by the in-kernel PM. When the
userspace PM sends a RM_ADDR notification, the in-kernel PM will
automatically react by closing all subflows using this address. Now,
thanks to the previous commit, the subflows are properly closed on both
directions, the userspace PM can then no longer closes the same
subflows if they are already closed. Before, it was OK to do that,
because the subflows were still half-opened, still OK to send a RM_ADDR.
In other words, thanks to the previous commit closing the subflows, an
error will be returned to the userspace if it tries to close a subflow
that has already been closed. So no need to run this command, which mean
that the linked counters will then not be incremented.
These tests are then no longer sending both a RM_ADDR, then closing the
linked subflow just after. The test with the userspace PM on the server
side is now removing one subflow linked to one address, then sending
a RM_ADDR for another address. The test with the userspace PM on the
client side is now only removing the subflow that was previously
created.
Fixes: 4369c198e599 ("selftests: mptcp: test userspace pm out of transfer")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240826-net-mptcp-close-extra-sf-fin-v1-2-905199fe1172@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When a peer decides to close one subflow in the middle of a connection
having multiple subflows, the receiver of the first FIN should accept
that, and close the subflow on its side as well. If not, the subflow
will stay half closed, and would even continue to be used until the end
of the MPTCP connection or a reset from the network.
The issue has not been seen before, probably because the in-kernel
path-manager always sends a RM_ADDR before closing the subflow. Upon the
reception of this RM_ADDR, the other peer will initiate the closure on
its side as well. On the other hand, if the RM_ADDR is lost, or if the
path-manager of the other peer only closes the subflow without sending a
RM_ADDR, the subflow would switch to TCP_CLOSE_WAIT, but that's it,
leaving the subflow half-closed.
So now, when the subflow switches to the TCP_CLOSE_WAIT state, and if
the MPTCP connection has not been closed before with a DATA_FIN, the
kernel owning the subflow schedules its worker to initiate the closure
on its side as well.
This issue can be easily reproduced with packetdrill, as visible in [1],
by creating an additional subflow, injecting a FIN+ACK before sending
the DATA_FIN, and expecting a FIN+ACK in return.
Fixes: 40947e13997a ("mptcp: schedule worker when subflow is closed")
Cc: stable@vger.kernel.org
Link: https://github.com/multipath-tcp/packetdrill/pull/154 [1]
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240826-net-mptcp-close-extra-sf-fin-v1-1-905199fe1172@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We have some problem closing zero-window fin-wait-1 tcp sockets in our
environment. This patch come from the investigation.
Previously tcp_abort only sends out reset and calls tcp_done when the
socket is not SOCK_DEAD, aka orphan. For orphan socket, it will only
purging the write queue, but not close the socket and left it to the
timer.
While purging the write queue, tp->packets_out and sk->sk_write_queue
is cleared along the way. However tcp_retransmit_timer have early
return based on !tp->packets_out and tcp_probe_timer have early
return based on !sk->sk_write_queue.
This caused ICSK_TIME_RETRANS and ICSK_TIME_PROBE0 not being resched
and socket not being killed by the timers, converting a zero-windowed
orphan into a forever orphan.
This patch removes the SOCK_DEAD check in tcp_abort, making it send
reset to peer and close the socket accordingly. Preventing the
timer-less orphan from happening.
According to Lorenzo's email in the v1 thread, the check was there to
prevent force-closing the same socket twice. That situation is handled
by testing for TCP_CLOSE inside lock, and returning -ENOENT if it is
already closed.
The -ENOENT code comes from the associate patch Lorenzo made for
iproute2-ss; link attached below, which also conform to RFC 9293.
At the end of the patch, tcp_write_queue_purge(sk) is removed because it
was already called in tcp_done_with_error().
p.s. This is the same patch with v2. Resent due to mis-labeled "changes
requested" on patchwork.kernel.org.
Link: https://patchwork.ozlabs.org/project/netdev/patch/1450773094-7978-3-git-send-email-lorenzo@google.com/
Fixes: c1e64e298b8c ("net: diag: Support destroying TCP sockets.")
Signed-off-by: Xueming Feng <kuro@kuroa.me>
Tested-by: Lorenzo Colitti <lorenzo@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240826102327.1461482-1-kuro@kuroa.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This commit introduces MDI-X configuration support in vsc73xx phys.
Vsc73xx supports only auto mode or forced MDI.
Vsc73xx have auto MDI-X disabled by default in forced speed mode.
This commit enables it.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20240826093710.511837-1-paweldembicki@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Liao Chen says:
====================
net: fix module autoloading
This patchset aims to enable autoloading of some net modules.
By registering MDT, the kernel is allowed to automatically bind
modules to devices that match the specified compatible strings.
====================
Link: https://patch.msgid.link/20240826091858.369910-1-liaochen4@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.
Signed-off-by: Liao Chen <liaochen4@huawei.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20240826091858.369910-4-liaochen4@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.
Signed-off-by: Liao Chen <liaochen4@huawei.com>
Link: https://patch.msgid.link/20240826091858.369910-3-liaochen4@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.
Signed-off-by: Liao Chen <liaochen4@huawei.com>
Link: https://patch.msgid.link/20240826091858.369910-2-liaochen4@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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PCI core API pci_dev_id() can be used to get the BDF number for a PCI
device. We don't need to compose it manually. Use pci_dev_id() to
simplify the code a little bit.
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240826012100.3975175-1-liaoyu15@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When sockfd_lookup() fails, gtp_encap_enable_socket() returns a
NULL pointer, but its callers only check for error pointers thus miss
the NULL pointer case.
Fix it by returning an error pointer with the error code carried from
sockfd_lookup().
(I found this bug during code inspection.)
Fixes: 1e3a3abd8b28 ("gtp: make GTP sockets in gtp_newlink optional")
Cc: Andreas Schultz <aschultz@tpip.net>
Cc: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20240825191638.146748-1-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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