Commit Graph

26401 Commits

Author SHA1 Message Date
Rocco Yue
49b99da2c9 ipv6: add IFLA_INET6_RA_MTU to expose mtu value
The kernel provides a "/proc/sys/net/ipv6/conf/<iface>/mtu"
file, which can temporarily record the mtu value of the last
received RA message when the RA mtu value is lower than the
interface mtu, but this proc has following limitations:

(1) when the interface mtu (/sys/class/net/<iface>/mtu) is
updeated, mtu6 (/proc/sys/net/ipv6/conf/<iface>/mtu) will
be updated to the value of interface mtu;
(2) mtu6 (/proc/sys/net/ipv6/conf/<iface>/mtu) only affect
ipv6 connection, and not affect ipv4.

Therefore, when the mtu option is carried in the RA message,
there will be a problem that the user sometimes cannot obtain
RA mtu value correctly by reading mtu6.

After this patch set, if a RA message carries the mtu option,
you can send a netlink msg which nlmsg_type is RTM_GETLINK,
and then by parsing the attribute of IFLA_INET6_RA_MTU to
get the mtu value carried in the RA message received on the
inet6 device. In addition, you can also get a link notification
when ra_mtu is updated so it doesn't have to poll.

In this way, if the MTU values that the device receives from
the network in the PCO IPv4 and the RA IPv6 procedures are
different, the user can obtain the correct ipv6 ra_mtu value
and compare the value of ra_mtu and ipv4 mtu, then the device
can use the lower MTU value for both IPv4 and IPv6.

Signed-off-by: Rocco Yue <rocco.yue@mediatek.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20210827150412.9267-1-rocco.yue@mediatek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-27 17:29:18 -07:00
Paolo Abeni
9af771d2ec selftests/net: allow GRO coalesce test on veth
This change extends the existing GRO coalesce test to
allow running on top of a veth pair, so that no H/W dep
is required to run them.

By default gro.sh will use the veth backend, and will try
to use exiting H/W in loopback mode if a specific device
name is provided with the '-i' command line option.

No functional change is intended for the loopback-based
tests, just move all the relevant initialization/cleanup
code into the related script.

Introduces a new initialization helper script for the
veth backend, and plugs the correct helper script according
to the provided command line.

Additionally, enable veth-based tests by default.

v1 -> v2:
  - drop unused code in setup_veth_ns() - Willem

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-26 12:03:49 +01:00
Geliang Tang
6bb3ab4913 selftests: mptcp: add MP_FAIL mibs check
This patch added a function chk_fail_nr to check the mibs for MP_FAIL.

Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-25 11:02:35 +01:00
Po-Hsu Lin
7844ec21a9 selftests/net: Use kselftest skip code for skipped tests
There are several test cases in the net directory are still using
exit 0 or exit 1 when they need to be skipped. Use kselftest
framework skip code instead so it can help us to distinguish the
return status.

Criterion to filter out what should be fixed in net directory:
  grep -r "exit [01]" -B1 | grep -i skip

This change might cause some false-positives if people are running
these test scripts directly and only checking their return codes,
which will change from 0 to 4. However I think the impact should be
small as most of our scripts here are already using this skip code.
And there will be no such issue if running them with the kselftest
framework.

Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20210823085854.40216-1-po-hsu.lin@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-24 16:49:09 -07:00
Yonglong Li
33c563ad28 selftests: mptcp: add_addr and echo race test
This patch added an extra test for the singal_address_tests() to do the
ADD_ADDR and ADD_ADDR_ECHO race test.

Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Yonglong Li <liyonglong@chinatelecom.cn>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-24 09:28:29 +01:00
jing yangyang
fa16ee7736 tools/net: Use bitwise instead of arithmetic operator for flags
This silences the following coccinelle warning:

"WARNING: sum of probable bitmasks, consider |"

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: jing yangyang <jing.yangyang@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-20 14:55:53 +01:00
Jakub Kicinski
f444fea789 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/ptp/Kconfig:
  55c8fca1da ("ptp_pch: Restore dependency on PCI")
  e5f3155267 ("ethernet: fix PTP_1588_CLOCK dependencies")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-19 18:09:18 -07:00
Linus Torvalds
f87d64319e Merge tag 'net-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Networking fixes, including fixes from bpf, wireless and mac80211
  trees.

  Current release - regressions:

   - tipc: call tipc_wait_for_connect only when dlen is not 0

   - mac80211: fix locking in ieee80211_restart_work()

  Current release - new code bugs:

   - bpf: add rcu_read_lock in bpf_get_current_[ancestor_]cgroup_id()

   - ethernet: ice: fix perout start time rounding

   - wwan: iosm: prevent underflow in ipc_chnl_cfg_get()

  Previous releases - regressions:

   - bpf: clear zext_dst of dead insns

   - sch_cake: fix srchost/dsthost hashing mode

   - vrf: reset skb conntrack connection on VRF rcv

   - net/rds: dma_map_sg is entitled to merge entries

  Previous releases - always broken:

   - ethernet: bnxt: fix Tx path locking and races, add Rx path
     barriers"

* tag 'net-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (42 commits)
  net: dpaa2-switch: disable the control interface on error path
  Revert "flow_offload: action should not be NULL when it is referenced"
  iavf: Fix ping is lost after untrusted VF had tried to change MAC
  i40e: Fix ATR queue selection
  r8152: fix the maximum number of PLA bp for RTL8153C
  r8152: fix writing USB_BP2_EN
  mptcp: full fully established support after ADD_ADDR
  mptcp: fix memory leak on address flush
  net/rds: dma_map_sg is entitled to merge entries
  net: mscc: ocelot: allow forwarding from bridge ports to the tag_8021q CPU port
  net: asix: fix uninit value bugs
  ovs: clear skb->tstamp in forwarding path
  net: mdio-mux: Handle -EPROBE_DEFER correctly
  net: mdio-mux: Don't ignore memory allocation errors
  net: mdio-mux: Delete unnecessary devm_kfree
  net: dsa: sja1105: fix use-after-free after calling of_find_compatible_node, or worse
  sch_cake: fix srchost/dsthost hashing mode
  ixgbe, xsk: clean up the resources in ixgbe_xsk_pool_enable error path
  net: qlcnic: add missed unlock in qlcnic_83xx_flash_read32
  mac80211: fix locking in ieee80211_restart_work()
  ...
2021-08-19 12:33:43 -07:00
Lahav Schlesinger
d3cec5ca29 selftests: vrf: Add test for SNAT over VRF
Commit 09e856d54b ("vrf: Reset skb conntrack connection on VRF rcv")
fixes the "reverse-DNAT" of an SNAT-ed packet over a VRF.

This patch adds a test for this scenario.

Signed-off-by: Lahav Schlesinger <lschlesinger@drivenets.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 11:28:22 +01:00
Bongsu Jeon
61612511e5 selftests: nci: Add the NCI testcase reading T4T Tag
Add the NCI testcase reading T4T Tag that has NFC TEST in plain text.
the virtual device application acts as T4T Tag in this testcase.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:17:57 +01:00
Bongsu Jeon
72696bd8a0 selftests: nci: Extract the start/stop discovery function
To reuse the start/stop discovery code in other testcase, extract the code.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:17:57 +01:00
Bongsu Jeon
6ebbc9680a selftests: nci: Add the flags parameter for the send_cmd_mt_nla
To reuse the send_cmd_mt_nla for NLM_F_REQUEST and NLM_F_DUMP flag,
add the flags parameter to the function.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:17:57 +01:00
Bongsu Jeon
1d5b8d01db selftests: nci: Fix the wrong condition
memcpy should be executed only in case nla_len's value is greater than 0.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:17:57 +01:00
Bongsu Jeon
78a7b2a8a0 selftests: nci: Fix the code for next nlattr offset
nlattr could have a padding for 4 bytes alignment. So next nla's offset
should be calculated with a padding.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:17:57 +01:00
Bongsu Jeon
366f6edf5d selftests: nci: Fix the typo
Fix typo: rep_len -> resp_len

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:17:57 +01:00
Bongsu Jeon
4ef956c643 selftests: nci: Remove the polling code to read a NCI frame
Because the virtual NCI device uses Wait Queue, the virtual device
application doesn't need to poll the NCI frame.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:17:57 +01:00
Geliang Tang
f7713dd5d2 selftests: mptcp: delete uncontinuous removing ids
The removing addresses testcases can only deal with the continuous ids.
This patch added the uncontinuous removing ids support.

Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:10:01 +01:00
Geliang Tang
4f49d63352 selftests: mptcp: add fullmesh testcases
This patch added the testcases for the fullmesh address flag of the path
manager.

Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:10:01 +01:00
Geliang Tang
371b90377e selftests: mptcp: set and print the fullmesh flag
This patch dealt with the MPTCP_PM_ADDR_FLAG_FULLMESH flag in add_addr()
and print_addr(), to set and print out the fullmesh flag.

Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:10:01 +01:00
Justin Iurman
752be29764 selftests: net: improved IOAM tests
As previously discussed with David Ahern, here is a refactored and improved
version of the IOAM self-test. It is now more complete and more robust. Now,
all tests are divided into three categories: OUTPUT (evaluates the IOAM
processing by the sender), INPUT (evaluates the IOAM processing by the receiver)
and GLOBAL (evaluates wider use cases that do not fall into the other two
categories). Both OUTPUT and INPUT tests only use a two-node topology (alpha and
beta), while GLOBAL tests use the entire three-node topology (alpha, beta,
gamma). Each test is documented inside its own handler in the (bash) script.

Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-17 10:50:33 +01:00
Linus Torvalds
94e95d5899 Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
 "Fixes in virtio, vhost, and vdpa drivers"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vdpa/mlx5: Fix queue type selection logic
  vdpa/mlx5: Avoid destroying MR on empty iotlb
  tools/virtio: fix build
  virtio_ring: pull in spinlock header
  vringh: pull in spinlock header
  virtio-blk: Add validation for block size in config space
  vringh: Use wiov->used to check for read/write desc order
  virtio_vdpa: reject invalid vq indices
  vdpa: Add documentation for vdpa_alloc_device() macro
  vDPA/ifcvf: Fix return value check for vdpa_alloc_device()
  vp_vdpa: Fix return value check for vdpa_alloc_device()
  vdpa_sim: Fix return value check for vdpa_alloc_device()
  vhost: Fix the calculation in vhost_overflow()
  vhost-vdpa: Fix integer overflow in vhost_vdpa_process_iotlb_update()
  virtio_pci: Support surprise removal of virtio pci device
  virtio: Protect vqs list access
  virtio: Keep vring_del_virtqueue() mirror of VQ create
  virtio: Improve vq->broken access to avoid any compiler optimization
2021-08-16 06:16:25 -10:00
Linus Torvalds
7ba34c0cba Merge tag 'libnvdimm-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
 "A couple of fixes for long standing bugs, a warning fixup, and some
  miscellaneous dax cleanups.

  The bugs were recently found due to new platforms looking to use the
  ACPI NFIT "virtual" device definition, and new error injection
  capabilities to trigger error responses to label area requests. Ira's
  cleanups have been long pending, I neglected to send them earlier, and
  see no harm in including them now. This has all appeared in -next with
  no reported issues.

  Summary:

   - Fix support for NFIT "virtual" ranges (BIOS-defined memory disks)

   - Fix recovery from failed label storage areas on NVDIMM devices

   - Miscellaneous cleanups from Ira's investigation of
     dax_direct_access paths preparing for stray-write protection"

* tag 'libnvdimm-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  tools/testing/nvdimm: Fix missing 'fallthrough' warning
  libnvdimm/region: Fix label activation vs errors
  ACPI: NFIT: Fix support for virtual SPA ranges
  dax: Ensure errno is returned from dax_direct_access
  fs/dax: Clarify nr_pages to dax_direct_access()
  fs/fuse: Remove unneeded kaddr parameter
2021-08-14 19:46:39 -10:00
Paolo Abeni
7d1e6f1639 selftests: mptcp: add testcase for active-back
Add more test-case for link failures scenario,
including recovery from link failure using only
backup subflows and bi-directional transfer.

Additionally explicitly check for stale count

Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-14 11:37:25 +01:00
Linus Torvalds
a83ed22577 Merge tag 'linux-kselftest-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fix from Shuah Khan:
 "A single patch to sgx test to fix Q1 and Q2 calculation"

* tag 'linux-kselftest-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c
2021-08-13 14:32:38 -10:00
Linus Torvalds
42995cee61 Merge tag 'io_uring-5.14-2021-08-13' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
 "A bit bigger than the previous weeks, but mostly just a few stable
  bound fixes. In detail:

   - Followup fixes to patches from last week for io-wq, turns out they
     weren't complete (Hao)

   - Two lockdep reported fixes out of the RT camp (me)

   - Sync the io_uring-cp example with liburing, as a few bug fixes
     never made it to the kernel carried version (me)

   - SQPOLL related TIF_NOTIFY_SIGNAL fix (Nadav)

   - Use WRITE_ONCE() when writing sq flags (Nadav)

   - io_rsrc_put_work() deadlock fix (Pavel)"

* tag 'io_uring-5.14-2021-08-13' of git://git.kernel.dk/linux-block:
  tools/io_uring/io_uring-cp: sync with liburing example
  io_uring: fix ctx-exit io_rsrc_put_work() deadlock
  io_uring: drop ctx->uring_lock before flushing work item
  io-wq: fix IO_WORKER_F_FIXED issue in create_io_worker()
  io-wq: fix bug of creating io-wokers unconditionally
  io_uring: rsrc ref lock needs to be IRQ safe
  io_uring: Use WRITE_ONCE() when writing to sq_flags
  io_uring: clear TIF_NOTIFY_SIGNAL when running task work
2021-08-13 13:25:08 -10:00
Ilya Leoshkevich
3776f3517e selftests, bpf: Test that dead ldx_w insns are accepted
Prevent regressions related to zero-extension metadata handling during
dead code sanitization.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210812151811.184086-3-iii@linux.ibm.com
2021-08-13 17:46:26 +02:00
Jens Axboe
8f40d03707 tools/io_uring/io_uring-cp: sync with liburing example
This example is missing a few fixes that are in the liburing version,
synchronize with the upstream version.

Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-08-13 08:58:11 -06:00
Jakub Kicinski
f4083a752a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:

drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
  9e26680733 ("bnxt_en: Update firmware call to retrieve TX PTP timestamp")
  9e518f2580 ("bnxt_en: 1PPS functions to configure TSIO pins")
  099fdeda65 ("bnxt_en: Event handler for PPS events")

kernel/bpf/helpers.c
include/linux/bpf-cgroup.h
  a2baf4e8bb ("bpf: Fix potentially incorrect results with bpf_get_local_storage()")
  c7603cfa04 ("bpf: Add ambient BPF runtime context stored in current")

drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
  5957cc557d ("net/mlx5: Set all field of mlx5_irq before inserting it to the xarray")
  2d0b41a376 ("net/mlx5: Refcount mlx5_irq with integer")

MAINTAINERS
  7b637cd52f ("MAINTAINERS: fix Microchip CAN BUS Analyzer Tool entry typo")
  7d901a1e87 ("net: phy: add Maxlinear GPY115/21x/24x driver")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-13 06:41:22 -07:00
Dan Williams
f21453b0ff tools/testing/nvdimm: Fix missing 'fallthrough' warning
Use "fallthrough;" to address:

tools/testing/nvdimm/test/nfit.c: In function ‘nd_intel_test_finish_query’:
tools/testing/nvdimm/test/nfit.c:436:37: warning: this statement may
	fall through [-Wimplicit-fallthrough=]
  436 |                 fw->missed_activate = false;
      |                 ~~~~~~~~~~~~~~~~~~~~^~~~~~~
tools/testing/nvdimm/test/nfit.c:438:9: note: here
  438 |         case FW_STATE_UPDATED:
      |         ^~~~

Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Link: https://lore.kernel.org/r/162767522046.3313209.14767278726893995797.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2021-08-11 11:55:54 -07:00
Michael S. Tsirkin
a24ce06c70 tools/virtio: fix build
We use a spinlock now so add a stub.
Ignore bogus uninitialized variable warnings.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-08-11 06:44:24 -04:00
Jakub Kicinski
d1a4e0a957 Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
bpf-next 2021-08-10

We've added 31 non-merge commits during the last 8 day(s) which contain
a total of 28 files changed, 3644 insertions(+), 519 deletions(-).

1) Native XDP support for bonding driver & related BPF selftests, from Jussi Maki.

2) Large batch of new BPF JIT tests for test_bpf.ko that came out as a result from
   32-bit MIPS JIT development, from Johan Almbladh.

3) Rewrite of netcnt BPF selftest and merge into test_progs, from Stanislav Fomichev.

4) Fix XDP bpf_prog_test_run infra after net to net-next merge, from Andrii Nakryiko.

5) Follow-up fix in unix_bpf_update_proto() to enforce socket type, from Cong Wang.

6) Fix bpf-iter-tcp4 selftest to print the correct dest IP, from Jose Blanquicet.

7) Various misc BPF XDP sample improvements, from Niklas Söderlund, Matthew Cover,
   and Muhammad Falak R Wani.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (31 commits)
  bpf, tests: Add tail call test suite
  bpf, tests: Add tests for BPF_CMPXCHG
  bpf, tests: Add tests for atomic operations
  bpf, tests: Add test for 32-bit context pointer argument passing
  bpf, tests: Add branch conversion JIT test
  bpf, tests: Add word-order tests for load/store of double words
  bpf, tests: Add tests for ALU operations implemented with function calls
  bpf, tests: Add more ALU64 BPF_MUL tests
  bpf, tests: Add more BPF_LSH/RSH/ARSH tests for ALU64
  bpf, tests: Add more ALU32 tests for BPF_LSH/RSH/ARSH
  bpf, tests: Add more tests of ALU32 and ALU64 bitwise operations
  bpf, tests: Fix typos in test case descriptions
  bpf, tests: Add BPF_MOV tests for zero and sign extension
  bpf, tests: Add BPF_JMP32 test cases
  samples, bpf: Add an explict comment to handle nested vlan tagging.
  selftests/bpf: Add tests for XDP bonding
  selftests/bpf: Fix xdp_tx.c prog section name
  net, core: Allow netdev_lower_get_next_private_rcu in bh context
  bpf, devmap: Exclude XDP broadcast to master device
  net, bonding: Add XDP support to the bonding driver
  ...
====================

Link: https://lore.kernel.org/r/20210810130038.16927-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-10 07:53:22 -07:00
Jussi Maki
6aab1c81b9 selftests/bpf: Add tests for XDP bonding
Add a test suite to test XDP bonding implementation over a pair of
veth devices.

Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210731055738.16820-8-joamaki@gmail.com
2021-08-09 23:25:15 +02:00
Jussi Maki
95413846cc selftests/bpf: Fix xdp_tx.c prog section name
The program type cannot be deduced from 'tx' which causes an invalid
argument error when trying to load xdp_tx.o using the skeleton.
Rename the section name to "xdp" so that libbpf can deduce the type.

Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210731055738.16820-7-joamaki@gmail.com
2021-08-09 23:25:15 +02:00
David S. Miller
84103209ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2021-08-07

The following pull-request contains BPF updates for your *net* tree.

We've added 4 non-merge commits during the last 9 day(s) which contain
a total of 4 files changed, 8 insertions(+), 7 deletions(-).

The main changes are:

1) Fix integer overflow in htab's lookup + delete batch op, from Tatsuhiko Yasumatsu.

2) Fix invalid fd 0 close in libbpf if BTF parsing failed, from Daniel Xu.

3) Fix libbpf feature probe for BPF_PROG_TYPE_CGROUP_SOCKOPT, from Robin Gögge.

4) Fix minor libbpf doc warning regarding code-block language, from Randy Dunlap.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-07 09:26:54 +01:00
Daniel Xu
c34c338a40 libbpf: Do not close un-owned FD 0 on errors
Before this patch, btf_new() was liable to close an arbitrary FD 0 if
BTF parsing failed. This was because:

* btf->fd was initialized to 0 through the calloc()
* btf__free() (in the `done` label) closed any FDs >= 0
* btf->fd is left at 0 if parsing fails

This issue was discovered on a system using libbpf v0.3 (without
BTF_KIND_FLOAT support) but with a kernel that had BTF_KIND_FLOAT types
in BTF. Thus, parsing fails.

While this patch technically doesn't fix any issues b/c upstream libbpf
has BTF_KIND_FLOAT support, it'll help prevent issues in the future if
more BTF types are added. It also allow the fix to be backported to
older libbpf's.

Fixes: 3289959b97 ("libbpf: Support BTF loading and raw data output in both endianness")
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/5969bb991adedb03c6ae93e051fd2a00d293cf25.1627513670.git.dxu@dxuuu.xyz
2021-08-07 01:39:15 +02:00
Robin Gögge
78d14bda86 libbpf: Fix probe for BPF_PROG_TYPE_CGROUP_SOCKOPT
This patch fixes the probe for BPF_PROG_TYPE_CGROUP_SOCKOPT,
so the probe reports accurate results when used by e.g.
bpftool.

Fixes: 4cdbfb59c4 ("libbpf: support sockopt hooks")
Signed-off-by: Robin Gögge <r.goegge@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20210728225825.2357586-1-r.goegge@gmail.com
2021-08-07 01:38:52 +02:00
Andrii Nakryiko
579345e7f2 selftests/bpf: Rename reference_tracking BPF programs
BPF programs for reference_tracking selftest use "fail_" prefix to notify that
they are expected to fail. This is really confusing and inconvenient when
trying to grep through test_progs output to find *actually* failed tests. So
rename the prefix from "fail_" to "err_".

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210805230734.437914-1-andrii@kernel.org
2021-08-06 17:18:33 +02:00
Jose Blanquicet
277b134057 selftests/bpf: Fix bpf-iter-tcp4 test to print correctly the dest IP
Currently, this test is incorrectly printing the destination port in
place of the destination IP.

Fixes: 2767c97765 ("selftests/bpf: Implement sample tcp/tcp6 bpf_iter programs")
Signed-off-by: Jose Blanquicet <josebl@microsoft.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210805164044.527903-1-josebl@microsoft.com
2021-08-06 17:16:33 +02:00
Jakub Kicinski
0ca8d3ca45 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Build failure in drivers/net/wwan/mhi_wwan_mbim.c:
add missing parameter (0, assuming we don't want buffer pre-alloc).

Conflict in drivers/net/dsa/sja1105/sja1105_main.c between:
  589918df93 ("net: dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too")
  0fac6aa098 ("net: dsa: sja1105: delete the best_effort_vlan_filtering mode")

Follow the instructions from the commit message of the former commit
- removed the if conditions. When looking at commit 589918df93 ("net:
dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too")
note that the mask_iotag fields get removed by the following patch.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-05 15:08:47 -07:00
Linus Torvalds
902e7f373f Merge tag 'net-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from ipsec.

  Current release - regressions:

   - sched: taprio: fix init procedure to avoid inf loop when dumping

   - sctp: move the active_key update after sh_keys is added

  Current release - new code bugs:

   - sparx5: fix build with old GCC & bitmask on 32-bit targets

  Previous releases - regressions:

   - xfrm: redo the PREEMPT_RT RCU vs hash_resize_mutex deadlock fix

   - xfrm: fixes for the compat netlink attribute translator

   - phy: micrel: Fix detection of ksz87xx switch

  Previous releases - always broken:

   - gro: set inner transport header offset in tcp/udp GRO hook to avoid
     crashes when such packets reach GSO

   - vsock: handle VIRTIO_VSOCK_OP_CREDIT_REQUEST, as required by spec

   - dsa: sja1105: fix static FDB entries on SJA1105P/Q/R/S and SJA1110

   - bridge: validate the NUD_PERMANENT bit when adding an extern_learn
     FDB entry

   - usb: lan78xx: don't modify phy_device state concurrently

   - usb: pegasus: check for errors of IO routines"

* tag 'net-5.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (48 commits)
  net: vxge: fix use-after-free in vxge_device_unregister
  net: fec: fix use-after-free in fec_drv_remove
  net: pegasus: fix uninit-value in get_interrupt_interval
  net: ethernet: ti: am65-cpsw: fix crash in am65_cpsw_port_offload_fwd_mark_update()
  bnx2x: fix an error code in bnx2x_nic_load()
  net: wwan: iosm: fix recursive lock acquire in unregister
  net: wwan: iosm: correct data protocol mask bit
  net: wwan: iosm: endianness type correction
  net: wwan: iosm: fix lkp buildbot warning
  net: usb: lan78xx: don't modify phy_device state concurrently
  docs: networking: netdevsim rules
  net: usb: pegasus: Remove the changelog and DRIVER_VERSION.
  net: usb: pegasus: Check the return value of get_geristers() and friends;
  net/prestera: Fix devlink groups leakage in error flow
  net: sched: fix lockdep_set_class() typo error for sch->seqlock
  net: dsa: qca: ar9331: reorder MDIO write sequence
  VSOCK: handle VIRTIO_VSOCK_OP_CREDIT_REQUEST
  mptcp: drop unused rcu member in mptcp_pm_addr_entry
  net: ipv6: fix returned variable type in ip6_skb_dst_mtu
  nfp: update ethtool reporting of pauseframe control
  ...
2021-08-05 12:26:00 -07:00
Linus Torvalds
97fcc07be8 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
 "Mostly bugfixes; plus, support for XMM arguments to Hyper-V hypercalls
  now obeys KVM_CAP_HYPERV_ENFORCE_CPUID.

  Both the XMM arguments feature and KVM_CAP_HYPERV_ENFORCE_CPUID are
  new in 5.14, and each did not know of the other"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86/mmu: Fix per-cpu counter corruption on 32-bit builds
  KVM: selftests: fix hyperv_clock test
  KVM: SVM: improve the code readability for ASID management
  KVM: SVM: Fix off-by-one indexing when nullifying last used SEV VMCB
  KVM: Do not leak memory for duplicate debugfs directories
  KVM: selftests: Test access to XMM fast hypercalls
  KVM: x86: hyper-v: Check if guest is allowed to use XMM registers for hypercall input
  KVM: x86: Introduce trace_kvm_hv_hypercall_done()
  KVM: x86: hyper-v: Check access to hypercall before reading XMM registers
  KVM: x86: accept userspace interrupt only if no event is injected
2021-08-05 11:23:09 -07:00
Coco Li
5ebfb4cc30 selftests/net: toeplitz test
To verify that this hash implements the Toeplitz hash function.

Additionally, provide a script toeplitz.sh to run the test in loopback mode
on a networking device of choice (see setup_loopback.sh). Since the
script modifies the NIC setup, it will not be run by selftests
automatically.

Tested:
./toeplitz.sh -i eth0 -irq_prefix <eth0_pattern> -t -6
carrier ready
rxq 0: cpu 14
rxq 1: cpu 20
rxq 2: cpu 17
rxq 3: cpu 23
cpu 14: rx_hash 0x69103ebc [saddr fda8::2 daddr fda8::1 sport 58938 dport 8000] OK rxq 0 (cpu 14)
...
cpu 20: rx_hash 0x257118b9 [saddr fda8::2 daddr fda8::1 sport 59258 dport 8000] OK rxq 1 (cpu 20)
count: pass=111 nohash=0 fail=0
Test Succeeded!

Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-05 13:14:09 +01:00
Coco Li
7d1575014a selftests/net: GRO coalesce test
Implement a GRO testsuite that expects Linux kernel GRO behavior.
All tests pass with the kernel software GRO stack. Run against a device
with hardware GRO to verify that it matches the software stack.

gro.c generates packets and sends them out through a packet socket. The
receiver in gro.c (run separately) receives the packets on a packet
socket, filters them by destination ports using BPF and checks the
packet geometry to see whether GRO was applied.

gro.sh provides a wrapper to run the gro.c in NIC loopback mode.
It is not included in continuous testing because it modifies network
configuration around a physical NIC: gro.sh sets the NIC in loopback
mode, creates macvlan devices on the physical device in separate
namespaces, and sends traffic generated by gro.c between the two
namespaces to observe coalescing behavior.

GRO coalescing is time sensitive.
Some tests may prove flaky on some hardware.

Note that this test suite tests for software GRO unless hardware GRO is
enabled (ethtool -K $DEV rx-gro-hw on).

To test, run ./gro.sh.
The wrapper will output success or failed test names, and generate
log.txt and stderr.

Sample log.txt result:
...
pure data packet of same size: Test succeeded

large data packets followed by a smaller one: Test succeeded

small data packets followed by a larger one: Test succeeded
...

Sample stderr result:
...
carrier ready
running test ipv4 data
Expected {200 }, Total 1 packets
Received {200 }, Total 1 packets.
...

Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-05 13:14:09 +01:00
Stanislav Fomichev
372642ea83 selftests/bpf: Move netcnt test under test_progs
Rewrite to skel and ASSERT macros as well while we are at it.

v3:
- replace -f with -A to make it work with busybox ping.
  -A is available on both busybox and iputils, from the man page:
  On networks with low RTT this mode is essentially equivalent to
  flood mode.

v2:
- don't check result of bpf_map__fd (Yonghong Song)
- remove from .gitignore (Andrii Nakryiko)
- move ping_command into network_helpers (Andrii Nakryiko)
- remove assert() (Andrii Nakryiko)

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210804205524.3748709-1-sdf@google.com
2021-08-04 16:18:48 -07:00
Maxim Levitsky
13c2c3cfe0 KVM: selftests: fix hyperv_clock test
The test was mistakenly using addr_gpa2hva on a gva and that happened
to work accidentally.  Commit 106a2e766e ("KVM: selftests: Lower the
min virtual address for misc page allocations") revealed this bug.

Fixes: 2c7f76b4c4 ("selftests: kvm: Add basic Hyper-V clocksources tests", 2021-03-18)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210804112057.409498-1-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-08-04 09:43:03 -04:00
Peilin Ye
625af9f029 tc-testing: Add control-plane selftests for sch_mq
Recently we added multi-queue support to netdevsim in commit d4861fc6be
("netdevsim: Add multi-queue support"); add a few control-plane selftests
for sch_mq using this new feature.

Use nsPlugin.py to avoid network interface name collisions.

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>
2021-08-04 12:42:27 +01:00
David S. Miller
d00551b402 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:

====================
pull request (net): ipsec 2021-08-04

1) Fix a sysbot reported memory leak in xfrm_user_rcv_msg.
   From Pavel Skripkin.

2) Revert "xfrm: policy: Read seqcount outside of rcu-read side
   in xfrm_policy_lookup_bytype". This commit tried to fix a
   lockin bug, but only cured some of the symptoms. A proper
   fix is applied on top of this revert.

3) Fix a locking bug on xfrm state hash resize. A recent change
   on sequence counters accidentally repaced a spinlock by a mutex.
   Fix from Frederic Weisbecker.

4) Fix possible user-memory-access in xfrm_user_rcv_msg_compat().
   From Dmitry Safonov.

5) Add initialiation sefltest fot xfrm_spdattr_type_t.
   From Dmitry Safonov.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-04 10:45:41 +01:00
Rao Shoaib
314001f0bf af_unix: Add OOB support
This patch adds OOB support for AF_UNIX sockets.
The semantics is same as TCP.

The last byte of a message with the OOB flag is
treated as the OOB byte. The byte is separated into
a skb and a pointer to the skb is stored in unix_sock.
The pointer is used to enforce OOB semantics.

Signed-off-by: Rao Shoaib <rao.shoaib@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-04 09:55:52 +01:00
Hangbin Liu
3a755cd8b7 bonding: add new option lacp_active
Add an option lacp_active, which is similar with team's runner.active.
This option specifies whether to send LACPDU frames periodically. If set
on, the LACPDU frames are sent along with the configured lacp_rate
setting. If set off, the LACPDU frames acts as "speak when spoken to".

Note, the LACPDU state frames still will be sent when init or unbind port.

v2: remove module parameter

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-03 11:50:22 +01:00
Vitaly Kuznetsov
2476b5a1b1 KVM: selftests: Test access to XMM fast hypercalls
Check that #UD is raised if bit 16 is clear in
HYPERV_CPUID_FEATURES.EDX and an 'XMM fast' hypercall is issued.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Siddharth Chandrasekaran <sidcha@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210730122625.112848-5-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-08-03 06:16:40 -04:00