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and netfilter trees.
Current release - regressions:
- mac80211: fix starting aggregation sessions on mesh interfaces
Current release - new code bugs:
- sctp: send pmtu probe only if packet loss in Search Complete state
- bnxt_en: add missing periodic PHC overflow check
- devlink: fix phys_port_name of virtual port and merge error
- hns3: change the method of obtaining default ptp cycle
- can: mcba_usb_start(): add missing urb->transfer_dma initialization
Previous releases - regressions:
- set true network header for ECN decapsulation
- mlx5e: RX, avoid possible data corruption w/ relaxed ordering and LRO
- phy: re-add check for PHY_BRCM_DIS_TXCRXC_NOENRGY on the BCM54811 PHY
- sctp: fix return value check in __sctp_rcv_asconf_lookup
Previous releases - always broken:
- bpf:
- more spectre corner case fixes, introduce a BPF nospec
instruction for mitigating Spectre v4
- fix OOB read when printing XDP link fdinfo
- sockmap: fix cleanup related races
- mac80211: fix enabling 4-address mode on a sta vif after assoc
- can:
- raw: raw_setsockopt(): fix raw_rcv panic for sock UAF
- j1939: j1939_session_deactivate(): clarify lifetime of
session object, avoid UAF
- fix number of identical memory leaks in USB drivers
- tipc:
- do not blindly write skb_shinfo frags when doing decryption
- fix sleeping in tipc accept routine
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.14-rc4, including fixes from bpf, can, WiFi
(mac80211) and netfilter trees.
Current release - regressions:
- mac80211: fix starting aggregation sessions on mesh interfaces
Current release - new code bugs:
- sctp: send pmtu probe only if packet loss in Search Complete state
- bnxt_en: add missing periodic PHC overflow check
- devlink: fix phys_port_name of virtual port and merge error
- hns3: change the method of obtaining default ptp cycle
- can: mcba_usb_start(): add missing urb->transfer_dma initialization
Previous releases - regressions:
- set true network header for ECN decapsulation
- mlx5e: RX, avoid possible data corruption w/ relaxed ordering and
LRO
- phy: re-add check for PHY_BRCM_DIS_TXCRXC_NOENRGY on the BCM54811
PHY
- sctp: fix return value check in __sctp_rcv_asconf_lookup
Previous releases - always broken:
- bpf:
- more spectre corner case fixes, introduce a BPF nospec
instruction for mitigating Spectre v4
- fix OOB read when printing XDP link fdinfo
- sockmap: fix cleanup related races
- mac80211: fix enabling 4-address mode on a sta vif after assoc
- can:
- raw: raw_setsockopt(): fix raw_rcv panic for sock UAF
- j1939: j1939_session_deactivate(): clarify lifetime of session
object, avoid UAF
- fix number of identical memory leaks in USB drivers
- tipc:
- do not blindly write skb_shinfo frags when doing decryption
- fix sleeping in tipc accept routine"
* tag 'net-5.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (91 commits)
gve: Update MAINTAINERS list
can: esd_usb2: fix memory leak
can: ems_usb: fix memory leak
can: usb_8dev: fix memory leak
can: mcba_usb_start(): add missing urb->transfer_dma initialization
can: hi311x: fix a signedness bug in hi3110_cmd()
MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver
bpf: Fix leakage due to insufficient speculative store bypass mitigation
bpf: Introduce BPF nospec instruction for mitigating Spectre v4
sis900: Fix missing pci_disable_device() in probe and remove
net: let flow have same hash in two directions
nfc: nfcsim: fix use after free during module unload
tulip: windbond-840: Fix missing pci_disable_device() in probe and remove
sctp: fix return value check in __sctp_rcv_asconf_lookup
nfc: s3fwrn5: fix undefined parameter values in dev_err()
net/mlx5: Fix mlx5_vport_tbl_attr chain from u16 to u32
net/mlx5e: Fix nullptr in mlx5e_hairpin_get_mdev()
net/mlx5: Unload device upon firmware fatal error
net/mlx5e: Fix page allocation failure for ptp-RQ over SF
net/mlx5e: Fix page allocation failure for trap-RQ over SF
...
Update the script responsible for checking that the different types used
at various places in bpftool are synchronised, and extend it to check
the consistency of options between the help messages in the source code
and the manual pages.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210730215435.7095-6-quentin@isovalent.com
Whenever the eBPF subsystem gains new elements, such as new program or
map types, it is necessary to update bpftool if we want it able to
handle the new items.
In addition to the main arrays containing the names of these elements in
the source code, there are also multiple locations to update:
- The help message in the do_help() functions in bpftool's source code.
- The RST documentation files.
- The bash completion file.
This has led to omissions multiple times in the past. This patch
attempts to address this issue by adding consistency checks for all
these different locations. It also verifies that the bpf_prog_type,
bpf_map_type and bpf_attach_type enums from the UAPI BPF header have all
their members present in bpftool.
The script requires no argument to run, it reads and parses the
different files to check, and prints the mismatches, if any. It
currently reports a number of missing elements, which will be fixed in a
later patch:
$ ./test_bpftool_synctypes.py
Comparing [...]/linux/tools/bpf/bpftool/map.c (map_type_name) and [...]/linux/tools/bpf/bpftool/bash-completion/bpftool (BPFTOOL_MAP_CREATE_TYPES): {'ringbuf'}
Comparing BPF header (enum bpf_attach_type) and [...]/linux/tools/bpf/bpftool/common.c (attach_type_name): {'BPF_TRACE_ITER', 'BPF_XDP_DEVMAP', 'BPF_XDP', 'BPF_SK_REUSEPORT_SELECT', 'BPF_XDP_CPUMAP', 'BPF_SK_REUSEPORT_SELECT_OR_MIGRATE'}
Comparing [...]/linux/tools/bpf/bpftool/prog.c (attach_type_strings) and [...]/linux/tools/bpf/bpftool/prog.c (do_help() ATTACH_TYPE): {'skb_verdict'}
Comparing [...]/linux/tools/bpf/bpftool/prog.c (attach_type_strings) and [...]/linux/tools/bpf/bpftool/Documentation/bpftool-prog.rst (ATTACH_TYPE): {'skb_verdict'}
Comparing [...]/linux/tools/bpf/bpftool/prog.c (attach_type_strings) and [...]/linux/tools/bpf/bpftool/bash-completion/bpftool (BPFTOOL_PROG_ATTACH_TYPES): {'skb_verdict'}
Note that the script does NOT check for consistency between the list of
program types that bpftool claims it accepts and the actual list of
keywords that can be used. This is because bpftool does not "see" them,
they are ELF section names parsed by libbpf. It is not hard to parse the
section_defs[] array in libbpf, but some section names are associated
with program types that bpftool cannot load at the moment. For example,
some programs require a BTF target and an attach target that bpftool
cannot handle. The script may be extended to parse the array and check
only relevant values in the future.
The script is not added to the selftests' Makefile, because doing so
would require all patches with BPF UAPI change to also update bpftool.
Instead it is to be added to the CI.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210730215435.7095-3-quentin@isovalent.com
Replace the calls to function btf__get_from_id(), which we plan to
deprecate before the library reaches v1.0, with calls to
btf__load_from_kernel_by_id() in tools/ (bpftool, perf, selftests).
Update the surrounding code accordingly (instead of passing a pointer to
the btf struct, get it as a return value from the function).
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210729162028.29512-6-quentin@isovalent.com
Make sure to call btf__free() (and not simply free(), which does not
free all pointers stored in the struct) on pointers to struct btf
objects retrieved at various locations.
These were found while updating the calls to btf__get_from_id().
Fixes: 999d82cbc044 ("tools/bpf: enhance test_btf file testing to test func info")
Fixes: 254471e57a86 ("tools/bpf: bpftool: add support for func types")
Fixes: 7b612e291a5a ("perf tools: Synthesize PERF_RECORD_* for loaded BPF programs")
Fixes: d56354dc4909 ("perf tools: Save bpf_prog_info and BTF of new BPF programs")
Fixes: 47c09d6a9f67 ("bpftool: Introduce "prog profile" command")
Fixes: fa853c4b839e ("perf stat: Enable counting events for BPF programs")
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210729162028.29512-5-quentin@isovalent.com
- Fix MTE shared page detection
- Enable selftest's use of PMU registers when asked to
s390:
- restore 5.13 debugfs names
x86:
- fix sizes for vcpu-id indexed arrays
- fixes for AMD virtualized LAPIC (AVIC)
- other small bugfixes
Generic:
- access tracking performance test
- dirty_log_perf_test command line parsing fix
- Fix selftest use of obsolete pthread_yield() in favour of sched_yield()
- use cpu_relax when halt polling
- fixed missing KVM_CLEAR_DIRTY_LOG compat ioctl
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix MTE shared page detection
- Enable selftest's use of PMU registers when asked to
s390:
- restore 5.13 debugfs names
x86:
- fix sizes for vcpu-id indexed arrays
- fixes for AMD virtualized LAPIC (AVIC)
- other small bugfixes
Generic:
- access tracking performance test
- dirty_log_perf_test command line parsing fix
- Fix selftest use of obsolete pthread_yield() in favour of
sched_yield()
- use cpu_relax when halt polling
- fixed missing KVM_CLEAR_DIRTY_LOG compat ioctl"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: add missing compat KVM_CLEAR_DIRTY_LOG
KVM: use cpu_relax when halt polling
KVM: SVM: use vmcb01 in svm_refresh_apicv_exec_ctrl
KVM: SVM: tweak warning about enabled AVIC on nested entry
KVM: SVM: svm_set_vintr don't warn if AVIC is active but is about to be deactivated
KVM: s390: restore old debugfs names
KVM: SVM: delay svm_vcpu_init_msrpm after svm->vmcb is initialized
KVM: selftests: Introduce access_tracking_perf_test
KVM: selftests: Fix missing break in dirty_log_perf_test arg parsing
x86/kvm: fix vcpu-id indexed array sizes
KVM: x86: Check the right feature bit for MSR_KVM_ASYNC_PF_ACK access
docs: virt: kvm: api.rst: replace some characters
KVM: Documentation: Fix KVM_CAP_ENFORCE_PV_FEATURE_CPUID name
KVM: nSVM: Swap the parameter order for svm_copy_vmrun_state()/svm_copy_vmloadsave_state()
KVM: nSVM: Rename nested_svm_vmloadsave() to svm_copy_vmloadsave_state()
KVM: arm64: selftests: get-reg-list: actually enable pmu regs in pmu sublist
KVM: selftests: change pthread_yield to sched_yield
KVM: arm64: Fix detection of shared VMAs on guest fault
Daniel Borkmann says:
====================
pull-request: bpf 2021-07-29
The following pull-request contains BPF updates for your *net* tree.
We've added 9 non-merge commits during the last 14 day(s) which contain
a total of 20 files changed, 446 insertions(+), 138 deletions(-).
The main changes are:
1) Fix UBSAN out-of-bounds splat for showing XDP link fdinfo, from Lorenz Bauer.
2) Fix insufficient Spectre v4 mitigation in BPF runtime, from Daniel Borkmann,
Piotr Krysiuk and Benedict Schlueter.
3) Batch of fixes for BPF sockmap found under stress testing, from John Fastabend.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Recently we added a new option, SKBMOD_F_ECN, to tc-skbmod(8). Add a
control-plane selftest for it.
Depends on kernel patch "net/sched: act_skbmod: Add SKBMOD_F_ECN option
support", as well as iproute2 patch "tc/skbmod: Introduce SKBMOD_F_ECN
option".
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current max cgroup storage value size is 4k (PAGE_SIZE). The other local
storages accept up to 64k (BPF_LOCAL_STORAGE_MAX_VALUE_SIZE). Let's align
max cgroup value size with the other storages.
For percpu, the max is 32k (PCPU_MIN_UNIT_SIZE) because percpu
allocator is not happy about larger values.
netcnt test is extended to exercise those maximum values
(non-percpu max size is close to, but not real max).
v4:
* remove inner union (Andrii Nakryiko)
* keep net_cnt on the stack (Andrii Nakryiko)
v3:
* refine SIZEOF_BPF_LOCAL_STORAGE_ELEM comment (Yonghong Song)
* anonymous struct in percpu_net_cnt & net_cnt (Yonghong Song)
* reorder free (Yonghong Song)
v2:
* cap max_value_size instead of BUILD_BUG_ON (Martin KaFai Lau)
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210727222335.4029096-1-sdf@google.com
This test measures the performance effects of KVM's access tracking.
Access tracking is driven by the MMU notifiers test_young, clear_young,
and clear_flush_young. These notifiers do not have a direct userspace
API, however the clear_young notifier can be triggered by marking a
pages as idle in /sys/kernel/mm/page_idle/bitmap. This test leverages
that mechanism to enable access tracking on guest memory.
To measure performance this test runs a VM with a configurable number of
vCPUs that each touch every page in disjoint regions of memory.
Performance is measured in the time it takes all vCPUs to finish
touching their predefined region.
Example invocation:
$ ./access_tracking_perf_test -v 8
Testing guest mode: PA-bits:ANY, VA-bits:48, 4K pages
guest physical test memory offset: 0xffdfffff000
Populating memory : 1.337752570s
Writing to populated memory : 0.010177640s
Reading from populated memory : 0.009548239s
Mark memory idle : 23.973131748s
Writing to idle memory : 0.063584496s
Mark memory idle : 24.924652964s
Reading from idle memory : 0.062042814s
Breaking down the results:
* "Populating memory": The time it takes for all vCPUs to perform the
first write to every page in their region.
* "Writing to populated memory" / "Reading from populated memory": The
time it takes for all vCPUs to write and read to every page in their
region after it has been populated. This serves as a control for the
later results.
* "Mark memory idle": The time it takes for every vCPU to mark every
page in their region as idle through page_idle.
* "Writing to idle memory" / "Reading from idle memory": The time it
takes for all vCPUs to write and read to every page in their region
after it has been marked idle.
This test should be portable across architectures but it is only enabled
for x86_64 since that's all I have tested.
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210713220957.3493520-7-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There is a missing break statement which causes a fallthrough to the
next statement where optarg will be null and a segmentation fault will
be generated.
Fixes: 9e965bb75aae ("KVM: selftests: Add backing src parameter to dirty_log_perf_test")
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210713220957.3493520-6-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This test passes pointers obtained from anon_allocate_area to the
userfaultfd and mremap APIs. This causes a problem if the system
allocator returns tagged pointers because with the tagged address ABI
the kernel rejects tagged addresses passed to these APIs, which would
end up causing the test to fail. To make this test compatible with such
system allocators, stop using the system allocator to allocate memory in
anon_allocate_area, and instead just use mmap.
Link: https://lkml.kernel.org/r/20210714195437.118982-3-pcc@google.com
Link: https://linux-review.googlesource.com/id/Icac91064fcd923f77a83e8e133f8631c5b8fc241
Fixes: c47174fc362a ("userfaultfd: selftest")
Co-developed-by: Lokesh Gidra <lokeshgidra@google.com>
Signed-off-by: Lokesh Gidra <lokeshgidra@google.com>
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Alistair Delva <adelva@google.com>
Cc: William McVicker <willmcvicker@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mitch Phillips <mitchp@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: <stable@vger.kernel.org> [5.4]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a list of vmtest script dependencies to make it easier for new
contributors to get going.
Signed-off-by: Evgeniy Litvinenko <evgeniyl@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210723223645.907802-1-evgeniyl@fb.com
This patch adds tests for the batching and bpf_(get|set)sockopt in
bpf tcp iter.
It first creates:
a) 1 non SO_REUSEPORT listener in lhash2.
b) 256 passive and active fds connected to the listener in (a).
c) 256 SO_REUSEPORT listeners in one of the lhash2 bucket.
The test sets all listeners and connections to bpf_cubic before
running the bpf iter.
The bpf iter then calls setsockopt(TCP_CONGESTION) to switch
each listener and connection from bpf_cubic to bpf_dctcp.
The bpf iter has a random_retry mode such that it can return EAGAIN
to the usespace in the middle of a batch.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210701200625.1036874-1-kafai@fb.com
Previously, the newly introduced test case in test_map_in_map(), which
checks whether the inner map is destroyed after unsuccessful creation of
the outer map, logged the following harmless and expected error:
libbpf: map 'mim': failed to create: Invalid argument(-22) libbpf:
failed to load object './test_map_in_map_invalid.o'
To avoid any possible confusion, mute the logging during loading of the
prog.
Fixes: 08f71a1e39a1 ("selftests/bpf: Check inner map deletion")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210721140941.563175-1-m@lambda.lt
Pull networking fixes from David Miller:
1) Fix type of bind option flag in af_xdp, from Baruch Siach.
2) Fix use after free in bpf_xdp_link_release(), from Xuan Zhao.
3) PM refcnt imbakance in r8152, from Takashi Iwai.
4) Sign extension ug in liquidio, from Colin Ian King.
5) Mising range check in s390 bpf jit, from Colin Ian King.
6) Uninit value in caif_seqpkt_sendmsg(), from Ziyong Xuan.
7) Fix skb page recycling race, from Ilias Apalodimas.
8) Fix memory leak in tcindex_partial_destroy_work, from Pave Skripkin.
9) netrom timer sk refcnt issues, from Nguyen Dinh Phi.
10) Fix data races aroun tcp's tfo_active_disable_stamp, from Eric
Dumazet.
11) act_skbmod should only operate on ethernet packets, from Peilin Ye.
12) Fix slab out-of-bpunds in fib6_nh_flush_exceptions(),, from Psolo
Abeni.
13) Fix sparx5 dependencies, from Yajun Deng.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (74 commits)
dpaa2-switch: seed the buffer pool after allocating the swp
net: sched: cls_api: Fix the the wrong parameter
net: sparx5: fix unmet dependencies warning
net: dsa: tag_ksz: dont let the hardware process the layer 4 checksum
net: dsa: ensure linearized SKBs in case of tail taggers
ravb: Remove extra TAB
ravb: Fix a typo in comment
net: dsa: sja1105: make VID 4095 a bridge VLAN too
tcp: disable TFO blackhole logic by default
sctp: do not update transport pathmtu if SPP_PMTUD_ENABLE is not set
net: ixp46x: fix ptp build failure
ibmvnic: Remove the proper scrq flush
selftests: net: add ESP-in-UDP PMTU test
udp: check encap socket in __udp_lib_err
sctp: update active_key for asoc when old key is being replaced
r8169: Avoid duplicate sysfs entry creation error
ixgbe: Fix packet corruption due to missing DMA sync
Revert "qed: fix possible unpaired spin_{un}lock_bh in _qed_mcp_cmd_and_union()"
ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
fsl/fman: Add fibre support
...
The case of ESP in UDP encapsulation was not covered before. Add
cases of local changes of MTU and difference on routed path.
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This test evaluates the IOAM insertion for IPv6 by checking the IOAM data
integrity on the receiver.
The topology is formed by 3 nodes: Alpha (sender), Beta (router in-between)
and Gamma (receiver). An IOAM domain is configured from Alpha to Gamma only,
which means not on the reverse path. When Gamma is the destination, Alpha
adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop and fills the
trace with its own IOAM data. Beta and Gamma also fill the trace. The IOAM
data integrity is checked on Gamma, by comparing with the pre-defined IOAM
configuration (see below).
+-------------------+ +-------------------+
| | | |
| alpha netns | | gamma netns |
| | | |
| +-------------+ | | +-------------+ |
| | veth0 | | | | veth0 | |
| | db01::2/64 | | | | db02::2/64 | |
| +-------------+ | | +-------------+ |
| . | | . |
+-------------------+ +-------------------+
. .
. .
. .
+----------------------------------------------------+
| . . |
| +-------------+ +-------------+ |
| | veth0 | | veth1 | |
| | db01::1/64 | ................ | db02::1/64 | |
| +-------------+ +-------------+ |
| |
| beta netns |
| |
+--------------------------+-------------------------+
~~~~~~~~~~~~~~~~~~~~~~
| IOAM configuration |
~~~~~~~~~~~~~~~~~~~~~~
Alpha
+-----------------------------------------------------------+
| Type | Value |
+-----------------------------------------------------------+
| Node ID | 1 |
+-----------------------------------------------------------+
| Node Wide ID | 11111111 |
+-----------------------------------------------------------+
| Ingress ID | 0xffff (default value) |
+-----------------------------------------------------------+
| Ingress Wide ID | 0xffffffff (default value) |
+-----------------------------------------------------------+
| Egress ID | 101 |
+-----------------------------------------------------------+
| Egress Wide ID | 101101 |
+-----------------------------------------------------------+
| Namespace Data | 0xdeadbee0 |
+-----------------------------------------------------------+
| Namespace Wide Data | 0xcafec0caf00dc0de |
+-----------------------------------------------------------+
| Schema ID | 777 |
+-----------------------------------------------------------+
| Schema Data | something that will be 4n-aligned |
+-----------------------------------------------------------+
Note: When Gamma is the destination, Alpha adds an IOAM Pre-allocated Trace
option inside a Hop-by-hop, where 164 bytes are pre-allocated for the
trace, with 123 as the IOAM-Namespace and with 0xfff00200 as the trace
type (= all available options at this time). As a result, and based on
IOAM configurations here, only both Alpha and Beta should be capable of
inserting their IOAM data while Gamma won't have enough space and will
set the overflow bit.
Beta
+-----------------------------------------------------------+
| Type | Value |
+-----------------------------------------------------------+
| Node ID | 2 |
+-----------------------------------------------------------+
| Node Wide ID | 22222222 |
+-----------------------------------------------------------+
| Ingress ID | 201 |
+-----------------------------------------------------------+
| Ingress Wide ID | 201201 |
+-----------------------------------------------------------+
| Egress ID | 202 |
+-----------------------------------------------------------+
| Egress Wide ID | 202202 |
+-----------------------------------------------------------+
| Namespace Data | 0xdeadbee1 |
+-----------------------------------------------------------+
| Namespace Wide Data | 0xcafec0caf11dc0de |
+-----------------------------------------------------------+
| Schema ID | 0xffffff (= None) |
+-----------------------------------------------------------+
| Schema Data | |
+-----------------------------------------------------------+
Gamma
+-----------------------------------------------------------+
| Type | Value |
+-----------------------------------------------------------+
| Node ID | 3 |
+-----------------------------------------------------------+
| Node Wide ID | 33333333 |
+-----------------------------------------------------------+
| Ingress ID | 301 |
+-----------------------------------------------------------+
| Ingress Wide ID | 301301 |
+-----------------------------------------------------------+
| Egress ID | 0xffff (default value) |
+-----------------------------------------------------------+
| Egress Wide ID | 0xffffffff (default value) |
+-----------------------------------------------------------+
| Namespace Data | 0xdeadbee2 |
+-----------------------------------------------------------+
| Namespace Wide Data | 0xcafec0caf22dc0de |
+-----------------------------------------------------------+
| Schema ID | 0xffffff (= None) |
+-----------------------------------------------------------+
| Schema Data | |
+-----------------------------------------------------------+
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set hthresh, dump it again and verify thresh.lbits && thresh.rbits.
They are passed as attributes of xfrm_spdattr_type_t, different from
other message attributes that use xfrm_attr_type_t.
Also, test attribute that is bigger than XFRMA_SPD_MAX, currently it
should be silently ignored.
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
When run test_tc_tunnel.sh, it complains following error
ipip
encap 192.168.1.1 to 192.168.1.2, type ipip, mac none len 100
test basic connectivity
nc: cannot use -p and -l
nc man page has:
-l Listen for an incoming connection rather than initiating
a connection to a remote host.Cannot be used together with
any of the options -psxz. Additionally, any timeouts specified
with the -w option are ignored.
Correct nc in server_listen().
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210719223022.66681-1-vincent.mc.li@gmail.com
UDP socket support was added recently so testing UDP insert failure is no
longer correct and causes test_maps failure. The fix is easy though, we
simply need to test that UDP is correctly added instead of blocked.
Fixes: 122e6c79efe1c ("sock_map: Update sock type checks for UDP")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210720184832.452430-1-john.fastabend@gmail.com
Simple functional test for the newly exposed features.
Also add an optional stress test for the channel number
update under flood.
RFC v1 -> RFC v2:
- add the stress test
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a test case to check whether an unsuccessful creation of an outer
map of a BTF-defined map-in-map destroys the inner map.
As bpf_object__create_map() is a static function, we cannot just call it
from the test case and then check whether a map accessible via
map->inner_map_fd has been closed. Instead, we iterate over all maps and
check whether the map "$MAP_NAME.inner" does not exist.
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210719173838.423148-3-m@lambda.lt
- Fix MTE shared page detection
- Fix selftest use of obsolete pthread_yield() in favour of sched_yield()
- Enable selftest's use of PMU registers when asked to
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Merge tag 'kvmarm-fixes-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.14, take #1
- Fix MTE shared page detection
- Fix selftest use of obsolete pthread_yield() in favour of sched_yield()
- Enable selftest's use of PMU registers when asked to
This Kselftest fixes update for Linux 5.14-rc2 consists of fix
to memory-hotplug hot-remove test to stop spamming logs with
dump_page() entries and slowing the system down to a crawl.
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Merge tag 'linux-kselftest-fixes-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"A fix to memory-hotplug hot-remove test to stop spamming logs with
dump_page() entries and slowing the system down to a crawl"
* tag 'linux-kselftest-fixes-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: memory-hotplug: avoid spamming logs with dump_page(), ratio limit hot-remove error test
Test various type data dumping operations by comparing expected
format with the dumped string; an snprintf-style printf function
is used to record the string dumped. Also verify overflow handling
where the data passed does not cover the full size of a type,
such as would occur if a tracer has a portion of the 8k
"struct task_struct".
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/1626362126-27775-4-git-send-email-alan.maguire@oracle.com
Add several test cases for checking update_alu_sanitation_state() under
multiple paths:
# ./test_verifier
[...]
#1061/u map access: known scalar += value_ptr unknown vs const OK
#1061/p map access: known scalar += value_ptr unknown vs const OK
#1062/u map access: known scalar += value_ptr const vs unknown OK
#1062/p map access: known scalar += value_ptr const vs unknown OK
#1063/u map access: known scalar += value_ptr const vs const (ne) OK
#1063/p map access: known scalar += value_ptr const vs const (ne) OK
#1064/u map access: known scalar += value_ptr const vs const (eq) OK
#1064/p map access: known scalar += value_ptr const vs const (eq) OK
#1065/u map access: known scalar += value_ptr unknown vs unknown (eq) OK
#1065/p map access: known scalar += value_ptr unknown vs unknown (eq) OK
#1066/u map access: known scalar += value_ptr unknown vs unknown (lt) OK
#1066/p map access: known scalar += value_ptr unknown vs unknown (lt) OK
#1067/u map access: known scalar += value_ptr unknown vs unknown (gt) OK
#1067/p map access: known scalar += value_ptr unknown vs unknown (gt) OK
[...]
Summary: 1762 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Alexei Starovoitov says:
====================
pull-request: bpf-next 2021-07-15
The following pull-request contains BPF updates for your *net-next* tree.
We've added 45 non-merge commits during the last 15 day(s) which contain
a total of 52 files changed, 3122 insertions(+), 384 deletions(-).
The main changes are:
1) Introduce bpf timers, from Alexei.
2) Add sockmap support for unix datagram socket, from Cong.
3) Fix potential memleak and UAF in the verifier, from He.
4) Add bpf_get_func_ip helper, from Jiri.
5) Improvements to generic XDP mode, from Kumar.
6) Support for passing xdp_md to XDP programs in bpf_prog_run, from Zvi.
===================
Signed-off-by: David S. Miller <davem@davemloft.net>
TCP and other connection oriented sockets have accept()
for each incoming connection on the server side, hence
they can just insert those fd's from accept() to sockmap,
which are of course established.
Now with datagram sockets begin to support sockmap and
redirection, the restriction is no longer applicable to
them, as they have no accept(). So we have to lift this
restriction for them. This is fine, because inside
bpf_sk_redirect_map() we still have another socket status
check, sock_map_redirect_allowed(), as a guard.
This also means they do not have to be removed from
sockmap when disconnecting.
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210704190252.11866-3-xiyou.wangcong@gmail.com
Adding test for bpf_get_func_ip in kprobe+ofset probe.
Because of the offset value it's arch specific, enabling
the new test only for x86_64 architecture.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210714094400.396467-9-jolsa@kernel.org
Check that map-in-map supports bpf timers.
Check that indirect "recursion" of timer callbacks works:
timer_cb1() { bpf_timer_set_callback(timer_cb2); }
timer_cb2() { bpf_timer_set_callback(timer_cb1); }
Check that
bpf_map_release
htab_free_prealloced_timers
bpf_timer_cancel_and_free
hrtimer_cancel
works while timer cb is running.
"while true; do ./test_progs -t timer_mim; done"
is a great stress test. It caught missing timer cancel in htab->extra_elems.
timer_mim_reject.c is a negative test that checks
that timer<->map mismatch is prevented.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20210715005417.78572-12-alexei.starovoitov@gmail.com
Add bpf_timer test that creates timers in preallocated and
non-preallocated hash, in array and in lru maps.
Let array timer expire once and then re-arm it for 35 seconds.
Arm lru timer into the same callback.
Then arm and re-arm hash timers 10 times each.
At the last invocation of prealloc hash timer cancel the array timer.
Force timer free via LRU eviction and direct bpf_map_delete_elem.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20210715005417.78572-11-alexei.starovoitov@gmail.com
The variable buf is unused since commit 005edd16562b ("selftests/bpf:
convert bpf tunnel test to BPF_ADJ_ROOM_MAC"). Remove it to fix the
following warning:
test_tc_tunnel.c:531:7: warning: unused variable 'buf' [-Wunused-variable]
Fixes: 005edd16562b ("selftests/bpf: convert bpf tunnel test to BPF_ADJ_ROOM_MAC")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210713102719.8890-1-tklauser@distanz.ch
* Fixes for host SMIs on AMD
* Fixes for guest SMIs on AMD
* Fixes for selftests on s390 and ARM
* Fix memory leak
* Enforce no-instrumentation area on vmentry when hardware
breakpoints are in use.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
- Allow again loading KVM on 32-bit non-PAE builds
- Fixes for host SMIs on AMD
- Fixes for guest SMIs on AMD
- Fixes for selftests on s390 and ARM
- Fix memory leak
- Enforce no-instrumentation area on vmentry when hardware breakpoints
are in use.
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (25 commits)
KVM: selftests: smm_test: Test SMM enter from L2
KVM: nSVM: Restore nested control upon leaving SMM
KVM: nSVM: Fix L1 state corruption upon return from SMM
KVM: nSVM: Introduce svm_copy_vmrun_state()
KVM: nSVM: Check that VM_HSAVE_PA MSR was set before VMRUN
KVM: nSVM: Check the value written to MSR_VM_HSAVE_PA
KVM: SVM: Fix sev_pin_memory() error checks in SEV migration utilities
KVM: SVM: Return -EFAULT if copy_to_user() for SEV mig packet header fails
KVM: SVM: add module param to control the #SMI interception
KVM: SVM: remove INIT intercept handler
KVM: SVM: #SMI interception must not skip the instruction
KVM: VMX: Remove vmx_msr_index from vmx.h
KVM: X86: Disable hardware breakpoints unconditionally before kvm_x86->run()
KVM: selftests: Address extra memslot parameters in vm_vaddr_alloc
kvm: debugfs: fix memory leak in kvm_create_vm_debugfs
KVM: x86/pmu: Clear anythread deprecated bit when 0xa leaf is unsupported on the SVM
KVM: mmio: Fix use-after-free Read in kvm_vm_ioctl_unregister_coalesced_mmio
KVM: SVM: Revert clearing of C-bit on GPA in #NPF handler
KVM: x86/mmu: Do not apply HPA (memory encryption) mask to GPAs
KVM: x86: Use kernel's x86_phys_bits to handle reduced MAXPHYADDR
...
Two additional tests are added:
- SMM triggered from L2 does not currupt L1 host state.
- Save/restore during SMM triggered from L2 does not corrupt guest/host
state.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210628104425.391276-7-vkuznets@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit a75a895e6457 ("KVM: selftests: Unconditionally use memslot 0 for
vaddr allocations") removed the memslot parameters from vm_vaddr_alloc.
It addressed all callers except one under lib/aarch64/, due to a race
with commit e3db7579ef35 ("KVM: selftests: Add exception handling
support for aarch64")
Fix the vm_vaddr_alloc call in lib/aarch64/processor.c.
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Message-Id: <20210702201042.4036162-1-ricarkol@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Current release - regressions:
- sock: fix parameter order in sock_setsockopt()
Current release - new code bugs:
- netfilter: nft_last:
- fix incorrect arithmetic when restoring last used
- honor NFTA_LAST_SET on restoration
Previous releases - regressions:
- udp: properly flush normal packet at GRO time
- sfc: ensure correct number of XDP queues; don't allow enabling the
feature if there isn't sufficient resources to Tx from any CPU
- dsa: sja1105: fix address learning getting disabled on the CPU port
- mptcp: addresses a rmem accounting issue that could keep packets
in subflow receive buffers longer than necessary, delaying
MPTCP-level ACKs
- ip_tunnel: fix mtu calculation for ETHER tunnel devices
- do not reuse skbs allocated from skbuff_fclone_cache in the napi
skb cache, we'd try to return them to the wrong slab cache
- tcp: consistently disable header prediction for mptcp
Previous releases - always broken:
- bpf: fix subprog poke descriptor tracking use-after-free
- ipv6:
- allocate enough headroom in ip6_finish_output2() in case
iptables TEE is used
- tcp: drop silly ICMPv6 packet too big messages to avoid
expensive and pointless lookups (which may serve as a DDOS
vector)
- make sure fwmark is copied in SYNACK packets
- fix 'disable_policy' for forwarded packets (align with IPv4)
- netfilter: conntrack: do not renew entry stuck in tcp SYN_SENT state
- netfilter: conntrack: do not mark RST in the reply direction coming
after SYN packet for an out-of-sync entry
- mptcp: cleanly handle error conditions with MP_JOIN and syncookies
- mptcp: fix double free when rejecting a join due to port mismatch
- validate lwtstate->data before returning from skb_tunnel_info()
- tcp: call sk_wmem_schedule before sk_mem_charge in zerocopy path
- mt76: mt7921: continue to probe driver when fw already downloaded
- bonding: fix multiple issues with offloading IPsec to (thru?) bond
- stmmac: ptp: fix issues around Qbv support and setting time back
- bcmgenet: always clear wake-up based on energy detection
Misc:
- sctp: move 198 addresses from unusable to private scope
- ptp: support virtual clocks and timestamping
- openvswitch: optimize operation for key comparison
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Merge tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski.
"Including fixes from bpf and netfilter.
Current release - regressions:
- sock: fix parameter order in sock_setsockopt()
Current release - new code bugs:
- netfilter: nft_last:
- fix incorrect arithmetic when restoring last used
- honor NFTA_LAST_SET on restoration
Previous releases - regressions:
- udp: properly flush normal packet at GRO time
- sfc: ensure correct number of XDP queues; don't allow enabling the
feature if there isn't sufficient resources to Tx from any CPU
- dsa: sja1105: fix address learning getting disabled on the CPU port
- mptcp: addresses a rmem accounting issue that could keep packets in
subflow receive buffers longer than necessary, delaying MPTCP-level
ACKs
- ip_tunnel: fix mtu calculation for ETHER tunnel devices
- do not reuse skbs allocated from skbuff_fclone_cache in the napi
skb cache, we'd try to return them to the wrong slab cache
- tcp: consistently disable header prediction for mptcp
Previous releases - always broken:
- bpf: fix subprog poke descriptor tracking use-after-free
- ipv6:
- allocate enough headroom in ip6_finish_output2() in case
iptables TEE is used
- tcp: drop silly ICMPv6 packet too big messages to avoid
expensive and pointless lookups (which may serve as a DDOS
vector)
- make sure fwmark is copied in SYNACK packets
- fix 'disable_policy' for forwarded packets (align with IPv4)
- netfilter: conntrack:
- do not renew entry stuck in tcp SYN_SENT state
- do not mark RST in the reply direction coming after SYN packet
for an out-of-sync entry
- mptcp: cleanly handle error conditions with MP_JOIN and syncookies
- mptcp: fix double free when rejecting a join due to port mismatch
- validate lwtstate->data before returning from skb_tunnel_info()
- tcp: call sk_wmem_schedule before sk_mem_charge in zerocopy path
- mt76: mt7921: continue to probe driver when fw already downloaded
- bonding: fix multiple issues with offloading IPsec to (thru?) bond
- stmmac: ptp: fix issues around Qbv support and setting time back
- bcmgenet: always clear wake-up based on energy detection
Misc:
- sctp: move 198 addresses from unusable to private scope
- ptp: support virtual clocks and timestamping
- openvswitch: optimize operation for key comparison"
* tag 'net-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (158 commits)
net: dsa: properly check for the bridge_leave methods in dsa_switch_bridge_leave()
sfc: add logs explaining XDP_TX/REDIRECT is not available
sfc: ensure correct number of XDP queues
sfc: fix lack of XDP TX queues - error XDP TX failed (-22)
net: fddi: fix UAF in fza_probe
net: dsa: sja1105: fix address learning getting disabled on the CPU port
net: ocelot: fix switchdev objects synced for wrong netdev with LAG offload
net: Use nlmsg_unicast() instead of netlink_unicast()
octeontx2-pf: Fix uninitialized boolean variable pps
ipv6: allocate enough headroom in ip6_finish_output2()
net: hdlc: rename 'mod_init' & 'mod_exit' functions to be module-specific
net: bridge: multicast: fix MRD advertisement router port marking race
net: bridge: multicast: fix PIM hello router port marking race
net: phy: marvell10g: fix differentiation of 88X3310 from 88X3340
dsa: fix for_each_child.cocci warnings
virtio_net: check virtqueue_add_sgs() return value
mptcp: properly account bulk freed memory
selftests: mptcp: fix case multiple subflows limited by server
mptcp: avoid processing packet if a subflow reset
mptcp: fix syncookie process if mptcp can not_accept new subflow
...
