6569 Commits

Author SHA1 Message Date
Weqaar Janjua
9103a8594d selftests/bpf: Xsk selftests - DRV POLL, NOPOLL
Adds following tests:

2. AF_XDP DRV/Native mode
   Works on any netdevice with XDP_REDIRECT support, driver dependent.
   Processes packets before SKB allocation. Provides better performance
   than SKB. Driver hook available just after DMA of buffer descriptor.
   a. nopoll
   b. poll
   * Only copy mode is supported because veth does not currently support
     zero-copy mode

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Yonghong Song <yhs@fb.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/20201207215333.11586-4-weqaar.a.janjua@intel.com
2020-12-09 16:44:45 +01:00
Weqaar Janjua
facb7cb2e9 selftests/bpf: Xsk selftests - SKB POLL, NOPOLL
Adds following tests:

1. AF_XDP SKB mode
   Generic mode XDP is driver independent, used when the driver does
   not have support for XDP. Works on any netdevice using sockets and
   generic XDP path. XDP hook from netif_receive_skb().
   a. nopoll - soft-irq processing
   b. poll - using poll() syscall

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Yonghong Song <yhs@fb.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/20201207215333.11586-3-weqaar.a.janjua@intel.com
2020-12-09 16:44:45 +01:00
Weqaar Janjua
a89052572e selftests/bpf: Xsk selftests framework
This patch adds AF_XDP selftests framework under selftests/bpf.

Topology:
---------
     -----------           -----------
     |  xskX   | --------- |  xskY   |
     -----------     |     -----------
          |          |          |
     -----------     |     ----------
     |  vethX  | --------- |  vethY |
     -----------   peer    ----------
          |          |          |
     namespaceX      |     namespaceY

Prerequisites setup by script test_xsk.sh:

   Set up veth interfaces as per the topology shown ^^:
   * setup two veth interfaces and one namespace
   ** veth<xxxx> in root namespace
   ** veth<yyyy> in af_xdp<xxxx> namespace
   ** namespace af_xdp<xxxx>
   * create a spec file veth.spec that includes this run-time configuration
   *** xxxx and yyyy are randomly generated 4 digit numbers used to avoid
       conflict with any existing interface
   * tests the veth and xsk layers of the topology

Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Yonghong Song <yhs@fb.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/20201207215333.11586-2-weqaar.a.janjua@intel.com
2020-12-09 16:44:44 +01:00
Florent Revest
34da87213d selftests/bpf: Test bpf_sk_storage_get in tcp iterators
This extends the existing bpf_sk_storage_get test where a socket is
created and tagged with its creator's pid by a task_file iterator.

A TCP iterator is now also used at the end of the test to negate the
values already stored in the local storage. The test therefore expects
-getpid() to be stored in the local storage.

Signed-off-by: Florent Revest <revest@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20201204113609.1850150-6-revest@google.com
2020-12-04 22:32:40 +01:00
Florent Revest
bd9b327e58 selftests/bpf: Add an iterator selftest for bpf_sk_storage_get
The eBPF program iterates over all files and tasks. For all socket
files, it stores the tgid of the last task it encountered with a handle
to that socket. This is a heuristic for finding the "owner" of a socket
similar to what's done by lsof, ss, netstat or fuser. Potentially, this
information could be used from a cgroup_skb/*gress hook to try to
associate network traffic with processes.

The test makes sure that a socket it created is tagged with prog_tests's
pid.

Signed-off-by: Florent Revest <revest@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20201204113609.1850150-5-revest@google.com
2020-12-04 22:32:40 +01:00
Florent Revest
593f6d41ab selftests/bpf: Add an iterator selftest for bpf_sk_storage_delete
The eBPF program iterates over all entries (well, only one) of a socket
local storage map and deletes them all. The test makes sure that the
entry is indeed deleted.

Signed-off-by: Florent Revest <revest@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20201204113609.1850150-4-revest@google.com
2020-12-04 22:32:40 +01:00
Florian Lehner
5f61b7c697 selftests/bpf: Avoid errno clobbering
Print a message when the returned error is about a program type being
not supported or because of permission problems.
These messages are expected if the program to test was actually
executed.

Signed-off-by: Florian Lehner <dev@der-flo.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201204181828.11974-3-dev@der-flo.net
2020-12-04 11:53:17 -08:00
Florian Lehner
7d17167244 selftests/bpf: Print reason when a tester could not run a program
Commit 8184d44c9a57 ("selftests/bpf: skip verifier tests for unsupported
program types") added a check to skip unsupported program types. As
bpf_probe_prog_type can change errno, do_single_test should save it before
printing a reason why a supported BPF program type failed to load.

Fixes: 8184d44c9a57 ("selftests/bpf: skip verifier tests for unsupported program types")
Signed-off-by: Florian Lehner <dev@der-flo.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201204181828.11974-2-dev@der-flo.net
2020-12-04 11:53:17 -08:00
Jakub Kicinski
a1dd1d8697 Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2020-12-03

The main changes are:

1) Support BTF in kernel modules, from Andrii.

2) Introduce preferred busy-polling, from Björn.

3) bpf_ima_inode_hash() and bpf_bprm_opts_set() helpers, from KP Singh.

4) Memcg-based memory accounting for bpf objects, from Roman.

5) Allow bpf_{s,g}etsockopt from cgroup bind{4,6} hooks, from Stanislav.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (118 commits)
  selftests/bpf: Fix invalid use of strncat in test_sockmap
  libbpf: Use memcpy instead of strncpy to please GCC
  selftests/bpf: Add fentry/fexit/fmod_ret selftest for kernel module
  selftests/bpf: Add tp_btf CO-RE reloc test for modules
  libbpf: Support attachment of BPF tracing programs to kernel modules
  libbpf: Factor out low-level BPF program loading helper
  bpf: Allow to specify kernel module BTFs when attaching BPF programs
  bpf: Remove hard-coded btf_vmlinux assumption from BPF verifier
  selftests/bpf: Add CO-RE relocs selftest relying on kernel module BTF
  selftests/bpf: Add support for marking sub-tests as skipped
  selftests/bpf: Add bpf_testmod kernel module for testing
  libbpf: Add kernel module BTF support for CO-RE relocations
  libbpf: Refactor CO-RE relocs to not assume a single BTF object
  libbpf: Add internal helper to load BTF data by FD
  bpf: Keep module's btf_data_size intact after load
  bpf: Fix bpf_put_raw_tracepoint()'s use of __module_address()
  selftests/bpf: Add Userspace tests for TCP_WINDOW_CLAMP
  bpf: Adds support for setting window clamp
  samples/bpf: Fix spelling mistake "recieving" -> "receiving"
  bpf: Fix cold build of test_progs-no_alu32
  ...
====================

Link: https://lore.kernel.org/r/20201204021936.85653-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-04 07:48:12 -08:00
Andrii Nakryiko
eceae70bde selftests/bpf: Fix invalid use of strncat in test_sockmap
strncat()'s third argument is how many bytes will be added *in addition* to
already existing bytes in destination. Plus extra zero byte will be added
after that. So existing use in test_sockmap has many opportunities to overflow
the string and cause memory corruptions. And in this case, GCC complains for
a good reason.

Fixes: 16962b2404ac ("bpf: sockmap, add selftests")
Fixes: 73563aa3d977 ("selftests/bpf: test_sockmap, print additional test options")
Fixes: 1ade9abadfca ("bpf: test_sockmap, add options for msg_pop_data() helper")
Fixes: 463bac5f1ca7 ("bpf, selftests: Add test for ktls with skb bpf ingress policy")
Fixes: e9dd904708c4 ("bpf: add tls support for testing in test_sockmap")
Fixes: 753fb2ee0934 ("bpf: sockmap, add msg_peek tests to test_sockmap")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201203235440.2302137-2-andrii@kernel.org
2020-12-03 18:07:05 -08:00
Andrii Nakryiko
1e38abefcf selftests/bpf: Add fentry/fexit/fmod_ret selftest for kernel module
Add new selftest checking attachment of fentry/fexit/fmod_ret (and raw
tracepoint ones for completeness) BPF programs to kernel module function.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-15-andrii@kernel.org
2020-12-03 17:38:21 -08:00
Andrii Nakryiko
bc9ed69c79 selftests/bpf: Add tp_btf CO-RE reloc test for modules
Add another CO-RE relocation test for kernel module relocations. This time for
tp_btf with direct memory reads.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-14-andrii@kernel.org
2020-12-03 17:38:21 -08:00
Andrii Nakryiko
6bcd39d366 selftests/bpf: Add CO-RE relocs selftest relying on kernel module BTF
Add a self-tests validating libbpf is able to perform CO-RE relocations
against the type defined in kernel module BTF. if bpf_testmod.o is not
supported by the kernel (e.g., due to version mismatch), skip tests, instead
of failing.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-9-andrii@kernel.org
2020-12-03 17:38:21 -08:00
Andrii Nakryiko
5ed31472b9 selftests/bpf: Add support for marking sub-tests as skipped
Previously skipped sub-tests would be counted as passing with ":OK" appened
in the log. Change that to be accounted as ":SKIP".

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-8-andrii@kernel.org
2020-12-03 17:38:21 -08:00
Andrii Nakryiko
9f7fa22589 selftests/bpf: Add bpf_testmod kernel module for testing
Add bpf_testmod module, which is conceptually out-of-tree module and provides
ways for selftests/bpf to test various kernel module-related functionality:
raw tracepoint, fentry/fexit/fmod_ret, etc. This module will be auto-loaded by
test_progs test runner and expected by some of selftests to be present and
loaded.

Pahole currently isn't able to generate BTF for static functions in kernel
modules, so make sure traced function is global.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-7-andrii@kernel.org
2020-12-03 17:38:20 -08:00
Prankur gupta
55144f31f0 selftests/bpf: Add Userspace tests for TCP_WINDOW_CLAMP
Adding selftests for new added functionality to set TCP_WINDOW_CLAMP
from bpf setsockopt.

Signed-off-by: Prankur gupta <prankgup@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201202213152.435886-3-prankgup@fb.com
2020-12-03 17:23:24 -08:00
Jakub Kicinski
55fd59b003 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:
	drivers/net/ethernet/ibm/ibmvnic.c

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-03 15:44:09 -08:00
Brendan Jackman
58c185b85d bpf: Fix cold build of test_progs-no_alu32
This object lives inside the trunner output dir,
i.e. tools/testing/selftests/bpf/no_alu32/btf_data.o

At some point it gets copied into the parent directory during another
part of the build, but that doesn't happen when building
test_progs-no_alu32 from clean.

Signed-off-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/bpf/20201203120850.859170-1-jackmanb@google.com
2020-12-03 12:10:53 -08:00
KP Singh
ffebecd9d4 selftests/bpf: Indent ima_setup.sh with tabs.
The file was formatted with spaces instead of tabs and went unnoticed
as checkpatch.pl did not complain (probably because this is a shell
script). Re-indent it with tabs to be consistent with other scripts.

Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201203191437.666737-5-kpsingh@chromium.org
2020-12-03 11:20:21 -08:00
KP Singh
d932e043b9 selftests/bpf: Add config dependency on BLK_DEV_LOOP
The ima selftest restricts its scope to a test filesystem image
mounted on a loop device and prevents permanent ima policy changes for
the whole system.

Fixes: 34b82d3ac105 ("bpf: Add a selftest for bpf_ima_inode_hash")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201203191437.666737-4-kpsingh@chromium.org
2020-12-03 11:20:21 -08:00
KP Singh
1ee076719d selftests/bpf: Ensure securityfs mount before writing ima policy
SecurityFS may not be mounted even if it is enabled in the kernel
config. So, check if the mount exists in /proc/mounts by parsing the
file and, if not, mount it on /sys/kernel/security.

Fixes: 34b82d3ac105 ("bpf: Add a selftest for bpf_ima_inode_hash")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201203191437.666737-3-kpsingh@chromium.org
2020-12-03 11:20:21 -08:00
KP Singh
3db980449b selftests/bpf: Update ima_setup.sh for busybox
losetup on busybox does not output the name of loop device on using
-f with --show. It also doesn't support -j to find the loop devices
for a given backing file. losetup is updated to use "-a" which is
available on busybox.

blkid does not support options (-s and -o) to only display the uuid, so
parse the output instead.

Not all environments have mkfs.ext4, the test requires a loop device
with a backing image file which could formatted with any filesystem.
Update to using mkfs.ext2 which is available on busybox.

Fixes: 34b82d3ac105 ("bpf: Add a selftest for bpf_ima_inode_hash")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201203191437.666737-2-kpsingh@chromium.org
2020-12-03 11:20:20 -08:00
Stanislav Fomichev
a874c8c389 selftests/bpf: Copy file using read/write in local storage test
Splice (copy_file_range) doesn't work on all filesystems. I'm running
test kernels on top of my read-only disk image and it uses plan9 under the
hood. This prevents test_local_storage from successfully passing.

There is really no technical reason to use splice, so lets do
old-school read/write to copy file; this should work in all
environments.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201202174947.3621989-1-sdf@google.com
2020-12-03 10:22:45 -08:00
Roman Gushchin
80ee81e040 bpf: Eliminate rlimit-based memory accounting infra for bpf maps
Remove rlimit-based accounting infrastructure code, which is not used
anymore.

To provide a backward compatibility, use an approximation of the
bpf map memory footprint as a "memlock" value, available to a user
via map info. The approximation is based on the maximal number of
elements and key and value sizes.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201201215900.3569844-33-guro@fb.com
2020-12-02 18:32:47 -08:00
Stanislav Fomichev
a540c81a2b selftests/bpf: Extend bind{4,6} programs with a call to bpf_setsockopt
To make sure it doesn't trigger sock_owned_by_me splat.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201202172516.3483656-4-sdf@google.com
2020-12-02 13:25:11 -08:00
Stanislav Fomichev
a999696c54 selftests/bpf: Rewrite test_sock_addr bind bpf into C
I'm planning to extend it in the next patches. It's much easier to
work with C than BPF assembly.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201202172516.3483656-2-sdf@google.com
2020-12-02 13:25:11 -08:00
Danielle Ratson
008cb2ec43 selftests: forwarding: Add QinQ veto testing
Test that each veto that was added in the previous patch, is indeed
vetoed.

$ ./q_in_q_veto.sh

TEST: create 802.1ad vlan upper on top of a front panel             [ OK ]
TEST: create 802.1ad vlan upper on top of a bridge port             [ OK ]
TEST: create 802.1ad vlan upper on top of a lag                     [ OK ]
TEST: create 802.1ad vlan upper on top 802.1q bridge                [ OK ]
TEST: create 802.1ad vlan upper on top 802.1ad bridge               [ OK ]
TEST: create 802.1q vlan upper on top 802.1ad bridge                [ OK ]
TEST: create vlan upper on top of front panel enslaved to 802.1ad bridge
[ OK ]
TEST: create vlan upper on top of lag enslaved to 802.1ad bridge    [ OK ]
TEST: enslave front panel with vlan upper to 802.1ad bridge         [ OK ]
TEST: enslave lag with vlan upper to 802.1ad bridge                 [ OK ]
TEST: IP address addition to 802.1ad bridge                         [ OK ]
TEST: switch bridge protocol                                        [ OK ]

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-01 15:21:13 -08:00
KP Singh
854055c0cf selftests/bpf: Fix flavored variants of test_ima
Flavored variants of test_progs (e.g. test_progs-no_alu32) change their
working directory to the corresponding subdirectory (e.g. no_alu32).
Since the setup script required by test_ima (ima_setup.sh) is not
mentioned in the dependencies, it does not get copied to these
subdirectories and causes flavored variants of test_ima to fail.

Adding the script to TRUNNER_EXTRA_FILES ensures that the file is also
copied to the subdirectories for the flavored variants of test_progs.

Fixes: 34b82d3ac105 ("bpf: Add a selftest for bpf_ima_inode_hash")
Reported-by: Yonghong Song <yhs@fb.com>
Suggested-by: Yonghong Song <yhs@fb.com>
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20201126184946.1708213-1-kpsingh@chromium.org
2020-11-30 22:56:32 +01:00
Davide Caratti
e14038a7ea selftests: tc-testing: enable CONFIG_NET_SCH_RED as a module
a proper kernel configuration for running kselftest can be obtained with:

 $ yes | make kselftest-merge

enable compile support for the 'red' qdisc: otherwise, tdc kselftest fail
when trying to run tdc test items contained in red.json.

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Link: https://lore.kernel.org/r/cfa23f2d4f672401e6cebca3a321dd1901a9ff07.1606416464.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-28 13:18:34 -08:00
Jakub Kicinski
5c39f26e67 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflict in CAN, keep the net-next + the byteswap wrapper.

Conflicts:
	drivers/net/can/usb/gs_usb.c

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-27 18:25:27 -08:00
Vadim Fedorenko
4f336e88a8 selftests/tls: add CHACHA20-POLY1305 to tls selftests
Add new cipher as a variant of standard tls selftests

Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-27 14:32:37 -08:00
Andrei Matei
fb3558127c bpf: Fix selftest compilation on clang 11
Before this patch, profiler.inc.h wouldn't compile with clang-11 (before
the __builtin_preserve_enum_value LLVM builtin was introduced in
https://reviews.llvm.org/D83242).

Another test that uses this builtin (test_core_enumval) is conditionally
skipped if the compiler is too old. In that spirit, this patch inhibits
part of populate_cgroup_info(), which needs this CO-RE builtin. The
selftests build again on clang-11.

The affected test (the profiler test) doesn't pass on clang-11 because
it's missing https://reviews.llvm.org/D85570, but at least the test suite
as a whole compiles. The test's expected failure is already called out in
the README.

Signed-off-by: Andrei Matei <andreimatei1@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Florian Lehner <dev@der-flo.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20201125035255.17970-1-andreimatei1@gmail.com
2020-11-26 00:25:55 +01:00
KP Singh
34b82d3ac1 bpf: Add a selftest for bpf_ima_inode_hash
The test does the following:

- Mounts a loopback filesystem and appends the IMA policy to measure
  executions only on this file-system. Restricting the IMA policy to
  a particular filesystem prevents a system-wide IMA policy change.
- Executes an executable copied to this loopback filesystem.
- Calls the bpf_ima_inode_hash in the bprm_committed_creds hook and
  checks if the call succeeded and checks if a hash was calculated.

The test shells out to the added ima_setup.sh script as the setup is
better handled in a shell script and is more complicated to do in the
test program or even shelling out individual commands from C.

The list of required configs (i.e. IMA, SECURITYFS,
IMA_{WRITE,READ}_POLICY) for running this test are also updated.

Suggested-by: Mimi Zohar <zohar@linux.ibm.com> (limit policy rule to loopback mount)
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20201124151210.1081188-4-kpsingh@chromium.org
2020-11-26 00:25:47 +01:00
Andrei Matei
1c26ac6ab3 selftest/bpf: Fix rst formatting in readme
A couple of places in the readme had invalid rst formatting causing the
rendering to be off. This patch fixes them with minimal edits.

Signed-off-by: Andrei Matei <andreimatei1@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20201122022205.57229-2-andreimatei1@gmail.com
2020-11-24 22:59:52 +01:00
Andrei Matei
05a98d7672 selftest/bpf: Fix link in readme
The link was bad because of invalid rst; it was pointing to itself and
was rendering badly.

Signed-off-by: Andrei Matei <andreimatei1@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20201122022205.57229-1-andreimatei1@gmail.com
2020-11-24 22:59:52 +01:00
Ido Schimmel
84e8feeadc selftests: mlxsw: Add blackhole_nexthop trap test
Test that packets hitting a blackhole nexthop are trapped to the CPU
when the trap is enabled. Test that packets are not reported when the
trap is disabled.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-24 12:14:56 -08:00
Ido Schimmel
1beaff779f selftests: forwarding: Add blackhole nexthops tests
Test that IPv4 and IPv6 ping fail when the route is using a blackhole
nexthop or a group with a blackhole nexthop. Test that ping passes when
the route starts using a valid nexthop.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-24 12:14:56 -08:00
Ido Schimmel
24eb2a02a6 selftests: mlxsw: Add blackhole nexthop configuration tests
Test the mlxsw allows blackhole nexthops to be installed and that the
nexthops are marked as offloaded.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-24 12:14:56 -08:00
Linus Torvalds
ea0ab64306 seccomp fixes for v5.10-rc5
- Fix typos in seccomp selftests on powerpc and sh (Kees Cook)
 
 - Fix PF_SUPERPRIV audit marking in seccomp and ptrace (Mickaël Salaün)
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Merge tag 'seccomp-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp fixes from Kees Cook:
 "This gets the seccomp selftests running again on powerpc and sh, and
  fixes an audit reporting oversight noticed in both seccomp and ptrace.

   - Fix typos in seccomp selftests on powerpc and sh (Kees Cook)

   - Fix PF_SUPERPRIV audit marking in seccomp and ptrace (Mickaël
     Salaün)"

* tag 'seccomp-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  selftests/seccomp: sh: Fix register names
  selftests/seccomp: powerpc: Fix typo in macro variable name
  seccomp: Set PF_SUPERPRIV when checking capability
  ptrace: Set PF_SUPERPRIV when checking capability
2020-11-21 10:24:05 -08:00
Geliang Tang
523514ed0a selftests: mptcp: add ADD_ADDR IPv6 test cases
This patch added IPv6 support for do_transfer, and the test cases for
ADD_ADDR IPv6.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 15:33:25 -08:00
Florian Westphal
8b819a84d4 selftests: mptcp: add link failure test case
Add a test case where a link fails with multiple subflows.
The expectation is that MPTCP will transmit any data that
could not be delivered via the failed link on another subflow.

Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 15:33:25 -08:00
Ido Schimmel
e035146d65 selftests: forwarding: Add multipath tunneling nexthop test
Add a nexthop objects version of gre_multipath.sh. Unlike the original
test, it also tests IPv6 overlay which is not possible with the legacy
nexthop implementation. See commit 9a2ad3623868 ("selftests: forwarding:
gre_multipath: Drop IPv6 tests") for more info.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 15:20:21 -08:00
Ido Schimmel
e96fa54bbd selftests: forwarding: Add device-only nexthop test
In a similar fashion to router_multipath.sh and its nexthop objects
version router_mpath_nh.sh, create a nexthop objects version of
router.sh.

It reuses the same topology, but uses device-only nexthop objects
instead of legacy ones.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 15:20:20 -08:00
Ido Schimmel
3600f29ad1 selftests: forwarding: Test IPv4 routes with IPv6 link-local nexthops
In addition to IPv4 multipath tests with IPv4 nexthops, also test IPv4
multipath with nexthops that use IPv6 link-local addresses.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 15:20:20 -08:00
Ido Schimmel
ffb721515b selftests: forwarding: Do not configure nexthop objects twice
routing_nh_obj() is used to configure the nexthop objects employed by
the test, but it is called twice resulting in "RTNETLINK answers: File
exists" messages.

Remove the first call, so that the function is only called after
setup_wait(), when all the interfaces are up and ready.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 15:20:20 -08:00
Ido Schimmel
20ac8f8690 selftests: mlxsw: Add nexthop objects configuration tests
Test that unsupported nexthop objects are rejected and that offload
indication is correctly set on: nexthop objects, nexthop group objects
and routes associated these objects.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 15:20:20 -08:00
Antonio Cardace
fbb7a1f813 selftests: add ring and coalesce selftests
Add scripts to test ring and coalesce settings
of netdevsim.

Signed-off-by: Antonio Cardace <acardace@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 12:51:54 -08:00
Antonio Cardace
9e48ee80ac selftests: refactor get_netdev_name function
As pointed out by Michal Kubecek, getting the name
with the previous approach was racy, it's better
and easier to get the name of the device with this
patch's approach.

Essentialy the function doesn't need to exist
anymore as it's a simple 'ls' command.

Signed-off-by: Antonio Cardace <acardace@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 12:51:54 -08:00
Antonio Cardace
fbb8531e58 selftests: extract common functions in ethtool-common.sh
Factor out some useful functions so that they can be reused
by other ethtool-netdevsim scripts.

Signed-off-by: Antonio Cardace <acardace@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20 12:51:54 -08:00
Kees Cook
4c222f31fb selftests/seccomp: sh: Fix register names
It looks like the seccomp selftests was never actually built for sh.
This fixes it, though I don't have an environment to do a runtime test
of it yet.

Fixes: 0bb605c2c7f2b4b3 ("sh: Add SECCOMP_FILTER")
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/lkml/a36d7b48-6598-1642-e403-0c77a86f416d@physik.fu-berlin.de
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-11-20 11:03:08 -08:00