UHB AP send supported power type(LPI, SP, VLP)
in beacon and probe response IE and STA should
connect to these AP only if their regulatory support
the AP power type.
Beacon/Probe response are reported to userspace
with reason "STA regulatory not supporting to connect to AP
based on transmitted power type" and it should
not connect to AP.
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231220133549.cbfbef9170a9.I432f78438de18aa9f5c9006be12e41dc34cc47c5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
FCC-594280 D01 Section B.3 allows peer-to-peer and ad hoc devices to
operate on DFS channels while they operate under the control of a
concurrent DFS master. For example, it is possible to have a P2P GO on a
DFS channel as long as BSS connection is active on the same channel.
Allow such operation by adding additional regulatory flags to indicate
DFS concurrent channels and capable devices. Add the required
relaxations in DFS regulatory checks.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231220133549.bdfb8a9c7c54.I973563562969a27fea8ec5685b96a3a47afe142f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
pull-request: bpf-next 2023-12-18
This PR is larger than usual and contains changes in various parts
of the kernel.
The main changes are:
1) Fix kCFI bugs in BPF, from Peter Zijlstra.
End result: all forms of indirect calls from BPF into kernel
and from kernel into BPF work with CFI enabled. This allows BPF
to work with CONFIG_FINEIBT=y.
2) Introduce BPF token object, from Andrii Nakryiko.
It adds an ability to delegate a subset of BPF features from privileged
daemon (e.g., systemd) through special mount options for userns-bound
BPF FS to a trusted unprivileged application. The design accommodates
suggestions from Christian Brauner and Paul Moore.
Example:
$ sudo mkdir -p /sys/fs/bpf/token
$ sudo mount -t bpf bpffs /sys/fs/bpf/token \
-o delegate_cmds=prog_load:MAP_CREATE \
-o delegate_progs=kprobe \
-o delegate_attachs=xdp
3) Various verifier improvements and fixes, from Andrii Nakryiko, Andrei Matei.
- Complete precision tracking support for register spills
- Fix verification of possibly-zero-sized stack accesses
- Fix access to uninit stack slots
- Track aligned STACK_ZERO cases as imprecise spilled registers.
It improves the verifier "instructions processed" metric from single
digit to 50-60% for some programs.
- Fix verifier retval logic
4) Support for VLAN tag in XDP hints, from Larysa Zaremba.
5) Allocate BPF trampoline via bpf_prog_pack mechanism, from Song Liu.
End result: better memory utilization and lower I$ miss for calls to BPF
via BPF trampoline.
6) Fix race between BPF prog accessing inner map and parallel delete,
from Hou Tao.
7) Add bpf_xdp_get_xfrm_state() kfunc, from Daniel Xu.
It allows BPF interact with IPSEC infra. The intent is to support
software RSS (via XDP) for the upcoming ipsec pcpu work.
Experiments on AWS demonstrate single tunnel pcpu ipsec reaching
line rate on 100G ENA nics.
8) Expand bpf_cgrp_storage to support cgroup1 non-attach, from Yafang Shao.
9) BPF file verification via fsverity, from Song Liu.
It allows BPF progs get fsverity digest.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (164 commits)
bpf: Ensure precise is reset to false in __mark_reg_const_zero()
selftests/bpf: Add more uprobe multi fail tests
bpf: Fail uprobe multi link with negative offset
selftests/bpf: Test the release of map btf
s390/bpf: Fix indirect trampoline generation
selftests/bpf: Temporarily disable dummy_struct_ops test on s390
x86/cfi,bpf: Fix bpf_exception_cb() signature
bpf: Fix dtor CFI
cfi: Add CFI_NOSEAL()
x86/cfi,bpf: Fix bpf_struct_ops CFI
x86/cfi,bpf: Fix bpf_callback_t CFI
x86/cfi,bpf: Fix BPF JIT call
cfi: Flip headers
selftests/bpf: Add test for abnormal cnt during multi-kprobe attachment
selftests/bpf: Don't use libbpf_get_error() in kprobe_multi_test
selftests/bpf: Add test for abnormal cnt during multi-uprobe attachment
bpf: Limit the number of kprobes when attaching program to multiple kprobes
bpf: Limit the number of uprobes when attaching program to multiple uprobes
bpf: xdp: Register generic_kfunc_set with XDP programs
selftests/bpf: utilize string values for delegate_xxx mount options
...
====================
Link: https://lore.kernel.org/r/20231219000520.34178-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The second features pull request for v6.8. A bigger one this time with
changes both to stack and drivers. We have a new Wifi band RFI (WBRF)
mitigation feature for which we pulled an immutable branch shared with
other subsystems. And, as always, other new features and bug fixes all
over.
Major changes:
cfg80211/mac80211
* AMD ACPI based Wifi band RFI (WBRF) mitigation feature
* Basic Service Set (BSS) usage reporting
* TID to link mapping support
* mac80211 hardware flag to disallow puncturing
iwlwifi
* new debugfs file fw_dbg_clear
mt76
* NVMEM EEPROM improvements
* mt7996 Extremely High Throughpu (EHT) improvements
* mt7996 Wireless Ethernet Dispatcher (WED) support
* mt7996 36-bit DMA support
ath12k
* support one MSI vector
* WCN7850: support AP mode
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Merge tag 'wireless-next-2023-12-18' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v6.8
The second features pull request for v6.8. A bigger one this time with
changes both to stack and drivers. We have a new Wifi band RFI (WBRF)
mitigation feature for which we pulled an immutable branch shared with
other subsystems. And, as always, other new features and bug fixes all
over.
Major changes:
cfg80211/mac80211
* AMD ACPI based Wifi band RFI (WBRF) mitigation feature
* Basic Service Set (BSS) usage reporting
* TID to link mapping support
* mac80211 hardware flag to disallow puncturing
iwlwifi
* new debugfs file fw_dbg_clear
mt76
* NVMEM EEPROM improvements
* mt7996 Extremely High Throughpu (EHT) improvements
* mt7996 Wireless Ethernet Dispatcher (WED) support
* mt7996 36-bit DMA support
ath12k
* support one MSI vector
* WCN7850: support AP mode
* tag 'wireless-next-2023-12-18' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (207 commits)
wifi: mt76: mt7996: Use DECLARE_FLEX_ARRAY() and fix -Warray-bounds warnings
wifi: ath11k: workaround too long expansion sparse warnings
Revert "wifi: ath12k: use ATH12K_PCI_IRQ_DP_OFFSET for DP IRQ"
wifi: rt2x00: remove useless code in rt2x00queue_create_tx_descriptor()
wifi: rtw89: only reset BB/RF for existing WiFi 6 chips while starting up
wifi: rtw89: add DBCC H2C to notify firmware the status
wifi: rtw89: mac: add suffix _ax to MAC functions
wifi: rtw89: mac: add flags to check if CMAC and DMAC are enabled
wifi: rtw89: 8922a: add power on/off functions
wifi: rtw89: add XTAL SI for WiFi 7 chips
wifi: rtw89: phy: print out RFK log with formatted string
wifi: rtw89: parse and print out RFK log from C2H events
wifi: rtw89: add C2H event handlers of RFK log and report
wifi: rtw89: load RFK log format string from firmware file
wifi: rtw89: fw: add version field to BB MCU firmware element
wifi: rtw89: fw: load TX power track tables from fw_element
wifi: mwifiex: configure BSSID consistently when starting AP
wifi: mwifiex: add extra delay for firmware ready
wifi: mac80211: sta_info.c: fix sentence grammar
wifi: mac80211: rx.c: fix sentence grammar
...
====================
Link: https://lore.kernel.org/r/20231218163900.C031DC433C9@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We assume in handful of places that the name of the spec is
the same as the name of the family. We could fix that but
it seems like a fair assumption to make. Rename the MPTCP
spec instead.
Reviewed-by: Mat Martineau <martineau@kernel.org>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Correct spelling as reported by codespell.
Correct run-on sentences and other grammar issues.
Add hyphenation of adjectives.
Correct some punctuation.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-wireless@vger.kernel.org
Cc: Kalle Valo <kvalo@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Link: https://msgid.link/20231213044315.19459-1-rdunlap@infradead.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Symmetric RSS hash functions are beneficial in applications that monitor
both Tx and Rx packets of the same flow (IDS, software firewalls, ..etc).
Getting all traffic of the same flow on the same RX queue results in
higher CPU cache efficiency.
A NIC that supports "symmetric-xor" can achieve this RSS hash symmetry
by XORing the source and destination fields and pass the values to the
RSS hash algorithm.
The user may request RSS hash symmetry for a specific algorithm, via:
# ethtool -X eth0 hfunc <hash_alg> symmetric-xor
or turn symmetry off (asymmetric) by:
# ethtool -X eth0 hfunc <hash_alg>
The specific fields for each flow type should then be specified as usual
via:
# ethtool -N|-U eth0 rx-flow-hash <flow_type> s|d|f|n
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231213003321.605376-4-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Implement functionality that enables drivers to expose VLAN tag
to XDP code.
VLAN tag is represented by 2 variables:
- protocol ID, which is passed to bpf code in BE
- VLAN TCI, in host byte order
Acked-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://lore.kernel.org/r/20231205210847.28460-10-larysa.zaremba@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add support for setting the TID to link mapping for a non-AP MLD
station.
This is useful in cases user space needs to restrict the possible
set of active links, e.g., since it got a BSS Transition Management
request forcing to use only a subset of the valid links etc.
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/20231211085121.da4d56a5f3ff.Iacf88e943326bf9c169c49b728c4a3445fdedc97@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Sometimes there may be reasons for which a BSS that's
actually found in scan cannot be used to connect to,
for example a nonprimary link of an NSTR mobile AP MLD
cannot be used for normal direct connections to it.
Not indicating these to userspace as we do now of course
avoids being able to connect to them, but it's better if
they're shown to userspace and it can make an appropriate
decision, without e.g. doing an additional ML probe.
Thus add an indication of what a BSS can be used for,
currently "normal" and "MLD link", including a reason
bitmap for it being not usable.
The latter can be extended later for certain BSSes if there
are other reasons they cannot be used.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-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/20231211085121.0464f25e0b1d.I9f70ca9f1440565ad9a5207d0f4d00a20cca67e7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Current handling of del pmksa with SSID is limited to FILS
security. In the current change the del pmksa support is extended
to SAE/OWE security offloads as well. For OWE/SAE offloads, the
PMK is generated and cached at driver/FW, so user app needs the
capability to request cache deletion based on SSID for drivers
supporting SAE/OWE offload.
Signed-off-by: Vinayak Yadawad <vinayak.yadawad@broadcom.com>
Link: https://msgid.link/ecdae726459e0944c377a6a6f6cb2c34d2e057d0.1701262123.git.vinayak.yadawad@broadcom.com
[drop whitespace-damaged rdev_ops pointer completely, enabling tracing]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
To stay consistent with the naming pattern used for similar cases in BPF
UAPI (__MAX_BPF_ATTACH_TYPE, etc), rename MAX_BPF_LINK_TYPE into
__MAX_BPF_LINK_TYPE.
Also similar to MAX_BPF_ATTACH_TYPE and MAX_BPF_REG, add:
#define MAX_BPF_LINK_TYPE __MAX_BPF_LINK_TYPE
Not all __MAX_xxx enums have such #define, so I'm not sure if we should
add it or not, but I figured I'll start with a completely backwards
compatible way, and we can drop that, if necessary.
Also adjust a selftest that used MAX_BPF_LINK_TYPE enum.
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20231206190920.1651226-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add basic support of BPF token to BPF_PROG_LOAD. Wire through a set of
allowed BPF program types and attach types, derived from BPF FS at BPF
token creation time. Then make sure we perform bpf_token_capable()
checks everywhere where it's relevant.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231130185229.2688956-7-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Accept BPF token FD in BPF_BTF_LOAD command to allow BTF data loading
through delegated BPF token. BTF loading is a pretty straightforward
operation, so as long as BPF token is created with allow_cmds granting
BPF_BTF_LOAD command, kernel proceeds to parsing BTF data and creating
BTF object.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231130185229.2688956-6-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Allow providing token_fd for BPF_MAP_CREATE command to allow controlled
BPF map creation from unprivileged process through delegated BPF token.
Wire through a set of allowed BPF map types to BPF token, derived from
BPF FS at BPF token creation time. This, in combination with allowed_cmds
allows to create a narrowly-focused BPF token (controlled by privileged
agent) with a restrictive set of BPF maps that application can attempt
to create.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231130185229.2688956-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add new kind of BPF kernel object, BPF token. BPF token is meant to
allow delegating privileged BPF functionality, like loading a BPF
program or creating a BPF map, from privileged process to a *trusted*
unprivileged process, all while having a good amount of control over which
privileged operations could be performed using provided BPF token.
This is achieved through mounting BPF FS instance with extra delegation
mount options, which determine what operations are delegatable, and also
constraining it to the owning user namespace (as mentioned in the
previous patch).
BPF token itself is just a derivative from BPF FS and can be created
through a new bpf() syscall command, BPF_TOKEN_CREATE, which accepts BPF
FS FD, which can be attained through open() API by opening BPF FS mount
point. Currently, BPF token "inherits" delegated command, map types,
prog type, and attach type bit sets from BPF FS as is. In the future,
having an BPF token as a separate object with its own FD, we can allow
to further restrict BPF token's allowable set of things either at the
creation time or after the fact, allowing the process to guard itself
further from unintentionally trying to load undesired kind of BPF
programs. But for now we keep things simple and just copy bit sets as is.
When BPF token is created from BPF FS mount, we take reference to the
BPF super block's owning user namespace, and then use that namespace for
checking all the {CAP_BPF, CAP_PERFMON, CAP_NET_ADMIN, CAP_SYS_ADMIN}
capabilities that are normally only checked against init userns (using
capable()), but now we check them using ns_capable() instead (if BPF
token is provided). See bpf_token_capable() for details.
Such setup means that BPF token in itself is not sufficient to grant BPF
functionality. User namespaced process has to *also* have necessary
combination of capabilities inside that user namespace. So while
previously CAP_BPF was useless when granted within user namespace, now
it gains a meaning and allows container managers and sys admins to have
a flexible control over which processes can and need to use BPF
functionality within the user namespace (i.e., container in practice).
And BPF FS delegation mount options and derived BPF tokens serve as
a per-container "flag" to grant overall ability to use bpf() (plus further
restrict on which parts of bpf() syscalls are treated as namespaced).
Note also, BPF_TOKEN_CREATE command itself requires ns_capable(CAP_BPF)
within the BPF FS owning user namespace, rounding up the ns_capable()
story of BPF token.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231130185229.2688956-4-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add document for IFLA_BRPORT enum so we can use it in
Documentation/networking/bridge.rst.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add document for IFLA_BR enum so we can use it in
Documentation/networking/bridge.rst.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add support in netlink spec(netdev.yaml) for interrupt number
among the NAPI attributes. Add code generated from the spec.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Link: https://lore.kernel.org/r/170147334210.5260.18178387869057516983.stgit@anambiarhost.jf.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support in netlink spec(netdev.yaml) for queue information.
Add code generated from the spec.
Note: The "queue-type" attribute takes values 0 and 1 for rx
and tx queue type respectively.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Link: https://lore.kernel.org/r/170147330963.5260.2576294626647300472.stgit@anambiarhost.jf.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Walk the hashinfo->bhash2 table so that inet_diag can dump TCP sockets
that are bound but haven't yet called connect() or listen().
The code is inspired by the ->lhash2 loop. However there's no manual
test of the source port, since this kind of filtering is already
handled by inet_diag_bc_sk(). Also, a maximum of 16 sockets are dumped
at a time, to avoid running with bh disabled for too long.
There's no TCP state for bound but otherwise inactive sockets. Such
sockets normally map to TCP_CLOSE. However, "ss -l", which is supposed
to only dump listening sockets, actually requests the kernel to dump
sockets in either the TCP_LISTEN or TCP_CLOSE states. To avoid dumping
bound-only sockets with "ss -l", we therefore need to define a new
pseudo-state (TCP_BOUND_INACTIVE) that user space will be able to set
explicitly.
With an IPv4, an IPv6 and an IPv6-only socket, bound respectively to
40000, 64000, 60000, an updated version of iproute2 could work as
follow:
$ ss -t state bound-inactive
Recv-Q Send-Q Local Address:Port Peer Address:Port Process
0 0 0.0.0.0:40000 0.0.0.0:*
0 0 [::]:60000 [::]:*
0 0 *:64000 *:*
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/b3a84ae61e19c06806eea9c602b3b66e8f0cfc81.1701362867.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Although DIRECT_IO_RELAX's initial usage is to allow shared mmap, its
description indicates a purpose of reducing memory footprint. This
may imply that it could be further used to relax other DIRECT_IO
operations in the future.
Replace it with a flag DIRECT_IO_ALLOW_MMAP which does only one thing,
allow shared mmap of DIRECT_IO files while still bypassing the cache
on regular reads and writes.
[Miklos] Also Keep DIRECT_IO_RELAX definition for backward compatibility.
Signed-off-by: Tyler Fanelli <tfanelli@redhat.com>
Fixes: e78662e818 ("fuse: add a new fuse init flag to relax restrictions in no cache mode")
Cc: <stable@vger.kernel.org> # v6.6
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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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 2023-11-30
We've added 30 non-merge commits during the last 7 day(s) which contain
a total of 58 files changed, 1598 insertions(+), 154 deletions(-).
The main changes are:
1) Add initial TX metadata implementation for AF_XDP with support in mlx5
and stmmac drivers. Two types of offloads are supported right now, that
is, TX timestamp and TX checksum offload, from Stanislav Fomichev with
stmmac implementation from Song Yoong Siang.
2) Change BPF verifier logic to validate global subprograms lazily instead
of unconditionally before the main program, so they can be guarded using
BPF CO-RE techniques, from Andrii Nakryiko.
3) Add BPF link_info support for uprobe multi link along with bpftool
integration for the latter, from Jiri Olsa.
4) Use pkg-config in BPF selftests to determine ld flags which is
in particular needed for linking statically, from Akihiko Odaki.
5) Fix a few BPF selftest failures to adapt to the upcoming LLVM18,
from Yonghong Song.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (30 commits)
bpf/tests: Remove duplicate JSGT tests
selftests/bpf: Add TX side to xdp_hw_metadata
selftests/bpf: Convert xdp_hw_metadata to XDP_USE_NEED_WAKEUP
selftests/bpf: Add TX side to xdp_metadata
selftests/bpf: Add csum helpers
selftests/xsk: Support tx_metadata_len
xsk: Add option to calculate TX checksum in SW
xsk: Validate xsk_tx_metadata flags
xsk: Document tx_metadata_len layout
net: stmmac: Add Tx HWTS support to XDP ZC
net/mlx5e: Implement AF_XDP TX timestamp and checksum offload
tools: ynl: Print xsk-features from the sample
xsk: Add TX timestamp and TX checksum offload support
xsk: Support tx_metadata_len
selftests/bpf: Use pkg-config for libelf
selftests/bpf: Override PKG_CONFIG for static builds
selftests/bpf: Choose pkg-config for the target
bpftool: Add support to display uprobe_multi links
selftests/bpf: Add link_info test for uprobe_multi link
selftests/bpf: Use bpf_link__destroy in fill_link_info tests
...
====================
Conflicts:
Documentation/netlink/specs/netdev.yaml:
839ff60df3 ("net: page_pool: add nlspec for basic access to page pools")
48eb03dd26 ("xsk: Add TX timestamp and TX checksum offload support")
https://lore.kernel.org/all/20231201094705.1ee3cab8@canb.auug.org.au/
While at it also regen, tree is dirty after:
48eb03dd26 ("xsk: Add TX timestamp and TX checksum offload support")
looks like code wasn't re-rendered after "render-max" was removed.
Link: https://lore.kernel.org/r/20231130145708.32573-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If the initial subflow has been removed, we cannot know without checking
other counters, e.g. ss -ti <filter> | grep -c tcp-ulp-mptcp or
getsockopt(SOL_MPTCP, MPTCP_FULL_INFO, ...) (or others except MPTCP_INFO
of course) and then check mptcp_subflow_data->num_subflows to get the
total amount of subflows.
This patch adds a new counter mptcpi_subflows_total in mptcpi_flags to
store the total amount of subflows, including the initial one. A new
helper __mptcp_has_initial_subflow() is added to check whether the
initial subflow has been removed or not. With this helper, we can then
compute the total amount of subflows from mptcp_info by doing something
like:
mptcpi_subflows_total = mptcpi_subflows +
__mptcp_has_initial_subflow(msk).
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/428
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231128-send-net-next-2023107-v4-1-8d6b94150f6b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For XDP_COPY mode, add a UMEM option XDP_UMEM_TX_SW_CSUM
to call skb_checksum_help in transmit path. Might be useful
to debugging issues with real hardware. I also use this mode
in the selftests.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20231127190319.1190813-9-sdf@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This change actually defines the (initial) metadata layout
that should be used by AF_XDP userspace (xsk_tx_metadata).
The first field is flags which requests appropriate offloads,
followed by the offload-specific fields. The supported per-device
offloads are exported via netlink (new xsk-flags).
The offloads themselves are still implemented in a bit of a
framework-y fashion that's left from my initial kfunc attempt.
I'm introducing new xsk_tx_metadata_ops which drivers are
supposed to implement. The drivers are also supposed
to call xsk_tx_metadata_request/xsk_tx_metadata_complete in
the right places. Since xsk_tx_metadata_{request,_complete}
are static inline, we don't incur any extra overhead doing
indirect calls.
The benefit of this scheme is as follows:
- keeps all metadata layout parsing away from driver code
- makes it easy to grep and see which drivers implement what
- don't need any extra flags to maintain to keep track of what
offloads are implemented; if the callback is implemented - the offload
is supported (used by netlink reporting code)
Two offloads are defined right now:
1. XDP_TXMD_FLAGS_CHECKSUM: skb-style csum_start+csum_offset
2. XDP_TXMD_FLAGS_TIMESTAMP: writes TX timestamp back into metadata
area upon completion (tx_timestamp field)
XDP_TXMD_FLAGS_TIMESTAMP is also implemented for XDP_COPY mode: it writes
SW timestamp from the skb destructor (note I'm reusing hwtstamps to pass
metadata pointer).
The struct is forward-compatible and can be extended in the future
by appending more fields.
Reviewed-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20231127190319.1190813-3-sdf@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
For zerocopy mode, tx_desc->addr can point to an arbitrary offset
and carry some TX metadata in the headroom. For copy mode, there
is no way currently to populate skb metadata.
Introduce new tx_metadata_len umem config option that indicates how many
bytes to treat as metadata. Metadata bytes come prior to tx_desc address
(same as in RX case).
The size of the metadata has mostly the same constraints as XDP:
- less than 256 bytes
- 8-byte aligned (compared to 4-byte alignment on xdp, due to 8-byte
timestamp in the completion)
- non-zero
This data is not interpreted in any way right now.
Reviewed-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20231127190319.1190813-2-sdf@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Adding support to get uprobe_link details through bpf_link_info
interface.
Adding new struct uprobe_multi to struct bpf_link_info to carry
the uprobe_multi link details.
The uprobe_multi.count is passed from user space to denote size
of array fields (offsets/ref_ctr_offsets/cookies). The actual
array size is stored back to uprobe_multi.count (allowing user
to find out the actual array size) and array fields are populated
up to the user passed size.
All the non-array fields (path/count/flags/pid) are always set.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20231125193130.834322-4-jolsa@kernel.org
Report when page pool was destroyed. Together with the inflight
/ memory use reporting this can serve as a replacement for the
warning about leaked page pools we currently print to dmesg.
Example output for a fake leaked page pool using some hacks
in netdevsim (one "live" pool, and one "leaked" on the same dev):
$ ./cli.py --no-schema --spec netlink/specs/netdev.yaml \
--dump page-pool-get
[{'id': 2, 'ifindex': 3},
{'id': 1, 'ifindex': 3, 'destroyed': 133, 'inflight': 1}]
Tested-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Advanced deployments need the ability to check memory use
of various system components. It makes it possible to make informed
decisions about memory allocation and to find regressions and leaks.
Report memory use of page pools. Report both number of references
and bytes held.
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Generate netlink notifications about page pool state changes.
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The first features pull request for v6.8. Not so big in number of
commits but we removed quite a few ancient drivers: libertas 16-bit
PCMCIA support, atmel, hostap, zd1201, orinoco, ray_cs, wl3501 and
rndis_wlan.
Major changes:
cfg80211/mac80211
* extend support for scanning while Multi-Link Operation (MLO) connected
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Merge tag 'wireless-next-2023-11-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v6.8
The first features pull request for v6.8. Not so big in number of
commits but we removed quite a few ancient drivers: libertas 16-bit
PCMCIA support, atmel, hostap, zd1201, orinoco, ray_cs, wl3501 and
rndis_wlan.
Major changes:
cfg80211/mac80211
- extend support for scanning while Multi-Link Operation (MLO) connected
* tag 'wireless-next-2023-11-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (68 commits)
wifi: nl80211: Documentation update for NL80211_CMD_PORT_AUTHORIZED event
wifi: mac80211: Extend support for scanning while MLO connected
wifi: cfg80211: Extend support for scanning while MLO connected
wifi: ieee80211: fix PV1 frame control field name
rfkill: return ENOTTY on invalid ioctl
MAINTAINERS: update iwlwifi maintainers
wifi: rtw89: 8922a: read efuse content from physical map
wifi: rtw89: 8922a: read efuse content via efuse map struct from logic map
wifi: rtw89: 8852c: read RX gain offset from efuse for 6GHz channels
wifi: rtw89: mac: add to access efuse for WiFi 7 chips
wifi: rtw89: mac: use mac_gen pointer to access about efuse
wifi: rtw89: 8922a: add 8922A basic chip info
wifi: rtlwifi: drop unused const_amdpci_aspm
wifi: mwifiex: mwifiex_process_sleep_confirm_resp(): remove unused priv variable
wifi: rtw89: regd: update regulatory map to R65-R44
wifi: rtw89: regd: handle policy of 6 GHz according to BIOS
wifi: rtw89: acpi: process 6 GHz band policy from DSM
wifi: rtlwifi: simplify rtl_action_proc() and rtl_tx_agg_start()
wifi: rtw89: pci: update interrupt mitigation register for 8922AE
wifi: rtw89: pci: correct interrupt mitigation register for 8852CE
...
====================
Link: https://lore.kernel.org/r/20231127180056.0B48DC433C8@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Recently the kernel test robot has reported an ARM-specific BUILD_BUG_ON()
in an old and unmaintained wil6210 wireless driver. The problem comes from
the structure packing rules of old ARM ABI ('-mabi=apcs-gnu'). For example,
the following structure is packed to 18 bytes instead of 16:
struct poorly_packed {
unsigned int a;
unsigned int b;
unsigned short c;
union {
struct {
unsigned short d;
unsigned int e;
} __attribute__((packed));
struct {
unsigned short d;
unsigned int e;
} __attribute__((packed)) inner;
};
} __attribute__((packed));
To fit it into 16 bytes, it's required to add packed attribute to the
container union as well:
struct poorly_packed {
unsigned int a;
unsigned int b;
unsigned short c;
union {
struct {
unsigned short d;
unsigned int e;
} __attribute__((packed));
struct {
unsigned short d;
unsigned int e;
} __attribute__((packed)) inner;
} __attribute__((packed));
} __attribute__((packed));
Thanks to Andrew Pinski of GCC team for sorting the things out at
https://gcc.gnu.org/pipermail/gcc/2023-November/242888.html.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311150821.cI4yciFE-lkp@intel.com
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://lore.kernel.org/r/20231120110607.98956-1-dmantipov@yandex.ru
Fixes: 50d7bd38c3 ("stddef: Introduce struct_group() helper macro")
Signed-off-by: Kees Cook <keescook@chromium.org>
Drivers supporting 4-way handshake offload for AP/P2p-GO and
STA/P2P-client should use this event to indicate that port has
been authorized and open for regular data traffic, sending
this event on completion of successful 4-way handshake.
Signed-off-by: Vinayak Yadawad <vinayak.yadawad@broadcom.com>
Link: https://lore.kernel.org/r/f746b59f41436e9df29c24688035fbc6eb91ab06.1699510229.git.vinayak.yadawad@broadcom.com
[rewrite it all to not use the term 'GC' that we don't use
in place of P2P-client]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
To extend the support of TSF accounting in scan results for MLO
connections, allow to indicate in the scan request the link ID
corresponding to the BSS whose TSF should be used for the TSF
accounting.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231113112844.d4490bcdefb1.I8fcd158b810adddef4963727e9153096416b30ce@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Merge tag 'vfs-6.7-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Avoid calling back into LSMs from vfs_getattr_nosec() calls.
IMA used to query inode properties accessing raw inode fields without
dedicated helpers. That was finally fixed a few releases ago by
forcing IMA to use vfs_getattr_nosec() helpers.
The goal of the vfs_getattr_nosec() helper is to query for attributes
without calling into the LSM layer which would be quite problematic
because incredibly IMA is called from __fput()...
__fput()
-> ima_file_free()
What it does is to call back into the filesystem to update the file's
IMA xattr. Querying the inode without using vfs_getattr_nosec() meant
that IMA didn't handle stacking filesystems such as overlayfs
correctly. So the switch to vfs_getattr_nosec() is quite correct. But
the switch to vfs_getattr_nosec() revealed another bug when used on
stacking filesystems:
__fput()
-> ima_file_free()
-> vfs_getattr_nosec()
-> i_op->getattr::ovl_getattr()
-> vfs_getattr()
-> i_op->getattr::$WHATEVER_UNDERLYING_FS_getattr()
-> security_inode_getattr() # calls back into LSMs
Now, if that __fput() happens from task_work_run() of an exiting task
current->fs and various other pointer could already be NULL. So
anything in the LSM layer relying on that not being NULL would be
quite surprised.
Fix that by passing the information that this is a security request
through to the stacking filesystem by adding a new internal
ATT_GETATTR_NOSEC flag. Now the callchain becomes:
__fput()
-> ima_file_free()
-> vfs_getattr_nosec()
-> i_op->getattr::ovl_getattr()
-> if (AT_GETATTR_NOSEC)
vfs_getattr_nosec()
else
vfs_getattr()
-> i_op->getattr::$WHATEVER_UNDERLYING_FS_getattr()
- Fix a bug introduced with the iov_iter rework from last cycle.
This broke /proc/kcore by copying too much and without the correct
offset.
- Add a missing NULL check when allocating the root inode in
autofs_fill_super().
- Fix stable writes for multi-device filesystems (xfs, btrfs etc) and
the block device pseudo filesystem.
Stable writes used to be a superblock flag only, making it a per
filesystem property. Add an additional AS_STABLE_WRITES mapping flag
to allow for fine-grained control.
- Ensure that offset_iterate_dir() returns 0 after reaching the end of
a directory so it adheres to getdents() convention.
* tag 'vfs-6.7-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
libfs: getdents() should return 0 after reaching EOD
xfs: respect the stable writes flag on the RT device
xfs: clean up FS_XFLAG_REALTIME handling in xfs_ioctl_setattr_xflags
block: update the stable_writes flag in bdev_add
filemap: add a per-mapping stable writes flag
autofs: add: new_inode check in autofs_fill_super()
iov_iter: fix copy_page_to_iter_nofault()
fs: Pass AT_GETATTR_NOSEC flag to getattr interface function
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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 2023-11-21
We've added 85 non-merge commits during the last 12 day(s) which contain
a total of 63 files changed, 4464 insertions(+), 1484 deletions(-).
The main changes are:
1) Huge batch of verifier changes to improve BPF register bounds logic
and range support along with a large test suite, and verifier log
improvements, all from Andrii Nakryiko.
2) Add a new kfunc which acquires the associated cgroup of a task within
a specific cgroup v1 hierarchy where the latter is identified by its id,
from Yafang Shao.
3) Extend verifier to allow bpf_refcount_acquire() of a map value field
obtained via direct load which is a use-case needed in sched_ext,
from Dave Marchevsky.
4) Fix bpf_get_task_stack() helper to add the correct crosstask check
for the get_perf_callchain(), from Jordan Rome.
5) Fix BPF task_iter internals where lockless usage of next_thread()
was wrong. The rework also simplifies the code, from Oleg Nesterov.
6) Fix uninitialized tail padding via LIBBPF_OPTS_RESET, and another
fix for certain BPF UAPI structs to fix verifier failures seen
in bpf_dynptr usage, from Yonghong Song.
7) Add BPF selftest fixes for map_percpu_stats flakes due to per-CPU BPF
memory allocator not being able to allocate per-CPU pointer successfully,
from Hou Tao.
8) Add prep work around dynptr and string handling for kfuncs which
is later going to be used by file verification via BPF LSM and fsverity,
from Song Liu.
9) Improve BPF selftests to update multiple prog_tests to use ASSERT_*
macros, from Yuran Pereira.
10) Optimize LPM trie lookup to check prefixlen before walking the trie,
from Florian Lehner.
11) Consolidate virtio/9p configs from BPF selftests in config.vm file
given they are needed consistently across archs, from Manu Bretelle.
12) Small BPF verifier refactor to remove register_is_const(),
from Shung-Hsi Yu.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (85 commits)
selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in vmlinux
selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in bpf_obj_id
selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in bind_perm
selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in bpf_tcp_ca
selftests/bpf: reduce verboseness of reg_bounds selftest logs
bpf: bpf_iter_task_next: use next_task(kit->task) rather than next_task(kit->pos)
bpf: bpf_iter_task_next: use __next_thread() rather than next_thread()
bpf: task_group_seq_get_next: use __next_thread() rather than next_thread()
bpf: emit frameno for PTR_TO_STACK regs if it differs from current one
bpf: smarter verifier log number printing logic
bpf: omit default off=0 and imm=0 in register state log
bpf: emit map name in register state if applicable and available
bpf: print spilled register state in stack slot
bpf: extract register state printing
bpf: move verifier state printing code to kernel/bpf/log.c
bpf: move verbose_linfo() into kernel/bpf/log.c
bpf: rename BPF_F_TEST_SANITY_STRICT to BPF_F_TEST_REG_INVARIANTS
bpf: Remove test for MOVSX32 with offset=32
selftests/bpf: add iter test requiring range x range logic
veristat: add ability to set BPF_F_TEST_SANITY_STRICT flag with -r flag
...
====================
Link: https://lore.kernel.org/r/20231122000500.28126-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Revert following commits:
commit acec05fb78 ("net_tstamp: Add TIMESTAMPING SOFTWARE and HARDWARE mask")
commit 11d55be06d ("net: ethtool: Add a command to expose current time stamping layer")
commit bb8645b00c ("netlink: specs: Introduce new netlink command to get current timestamp")
commit d905f9c753 ("net: ethtool: Add a command to list available time stamping layers")
commit aed5004ee7 ("netlink: specs: Introduce new netlink command to list available time stamping layers")
commit 51bdf3165f ("net: Replace hwtstamp_source by timestamping layer")
commit 0f7f463d48 ("net: Change the API of PHY default timestamp to MAC")
commit 091fab1228 ("net: ethtool: ts: Update GET_TS to reply the current selected timestamp")
commit 152c75e1d0 ("net: ethtool: ts: Let the active time stamping layer be selectable")
commit ee60ea6be0 ("netlink: specs: Introduce time stamping set command")
They need more time for reviews.
Link: https://lore.kernel.org/all/20231118183529.6e67100c@kernel.org/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- bump version strings, by Simon Wunderlich
- Implement new multicast packet type, including its transmission,
forwarding and parsing, by Linus Lüssing (3 patches)
- Switch to new headers for sprintf and array size,
by Sven Eckelmann (2 patches)
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Merge tag 'batadv-next-pullrequest-20231115' of git://git.open-mesh.org/linux-merge
This feature/cleanup patchset includes the following patches:
- bump version strings, by Simon Wunderlich
- Implement new multicast packet type, including its transmission,
forwarding and parsing, by Linus Lüssing (3 patches)
- Switch to new headers for sprintf and array size,
by Sven Eckelmann (2 patches)
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that the current timestamp is saved in a variable lets add the
ETHTOOL_MSG_TS_SET ethtool netlink socket to make it selectable.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce a new netlink message that lists all available time stamping
layers on a given interface.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mukesh Sisodiya