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2020-07-21selftest: txtimestamp: fix net ns entry logicPaolo Pisati1-1/+1
According to 'man 8 ip-netns', if `ip netns identify` returns an empty string, there's no net namespace associated with current PID: fix the net ns entrance logic. Signed-off-by: Paolo Pisati <[email protected]> Acked-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-21bpf: Add BTF_ID_LIST_GLOBAL in btf_ids.hYonghong Song1-8/+25
Existing BTF_ID_LIST used a local static variable to store btf_ids. This patch provided a new macro BTF_ID_LIST_GLOBAL to store btf_ids in a global variable which can be shared among multiple files. The existing BTF_ID_LIST is still retained. Two reasons. First, BTF_ID_LIST is also used to build btf_ids for helper arguments which typically is an array of 5. Since typically different helpers have different signature, it makes little sense to share them. Second, some current computed btf_ids are indeed local. If later those btf_ids are shared between different files, they can use BTF_ID_LIST_GLOBAL then. Signed-off-by: Yonghong Song <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-21tools/bpf: Sync btf_ids.h to toolsYonghong Song1-0/+1
Sync kernel header btf_ids.h to tools directory. Also define macro CONFIG_DEBUG_INFO_BTF before including btf_ids.h in prog_tests/resolve_btfids.c since non-stub definitions for BTF_ID_LIST etc. macros are defined under CONFIG_DEBUG_INFO_BTF. This prevented test_progs from failing. Signed-off-by: Yonghong Song <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-21samples/bpf, selftests/bpf: Use bpf_probe_read_kernelIlya Leoshkevich5-7/+7
A handful of samples and selftests fail to build on s390, because after commit 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work") bpf_probe_read is not available anymore. Fix by using bpf_probe_read_kernel. Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-21selftests/bpf: Fix test_lwt_seg6local.sh hangsIlya Leoshkevich1-1/+1
OpenBSD netcat (Debian patchlevel 1.195-2) does not seem to react to SIGINT for whatever reason, causing prefix.pl to hang after test_lwt_seg6local.sh exits due to netcat inheriting test_lwt_seg6local.sh's file descriptors. Fix by using SIGTERM instead. Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-21selftests: bpf: test_kmod.sh: Fix running out of srctreeIlya Leoshkevich1-3/+9
When running out of srctree, relative path to lib/test_bpf.ko is different than when running in srctree. Check $building_out_of_srctree environment variable and use a different relative path if needed. Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-22powerpc/64s: Remove PROT_SAO supportNicholas Piggin3-46/+1
ISA v3.1 does not support the SAO storage control attribute required to implement PROT_SAO. PROT_SAO was used by specialised system software (Lx86) that has been discontinued for about 7 years, and is not thought to be used elsewhere, so removal should not cause problems. We rather remove it than keep support for older processors, because live migrating guest partitions to newer processors may not be possible if SAO is in use (or worse allowed with silent races). - PROT_SAO stays in the uapi header so code using it would still build. - arch_validate_prot() is removed, the generic version rejects PROT_SAO so applications would get a failure at mmap() time. Signed-off-by: Nicholas Piggin <[email protected]> [mpe: Drop KVM change for the time being] Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-22selftests/powerpc: Run per_event_excludes test on Power8 or laterMichael Ellerman1-4/+3
The per_event_excludes test wants to run on Power8 or later. But currently it checks that AT_BASE_PLATFORM *equals* power8, which means it only runs on Power8. Fix it to check for the ISA 2.07 feature, which will be set on Power8 and later CPUs. Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-22selftests/powerpc: ptrace-pkey: Don't update expected UAMOR valueAneesh Kumar K.V1-3/+8
With commit 4a4a5e5d2aad ("powerpc/pkeys: key allocation/deallocation must not change pkey registers") we are not updating UAMOR on key allocation. So don't update the expected uamor value in the test. Fixes: 4a4a5e5d2aad ("powerpc/pkeys: key allocation/deallocation must not change pkey registers") Signed-off-by: Aneesh Kumar K.V <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-22selftests/powerpc: ptrace-pkey: Update the test to mark an invalid pkey ↵Aneesh Kumar K.V1-18/+12
correctly Signed-off-by: Aneesh Kumar K.V <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-22selftests/powerpc: ptrace-pkey: Rename variables to make it easier to follow ↵Aneesh Kumar K.V1-13/+13
code Rename variable to indicate that they are invalid values which we will use to test ptrace update of pkeys. Signed-off-by: Aneesh Kumar K.V <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-20tc-testing: Add tdc to kselftestsBriana Oursler5-4/+13
Add tdc to existing kselftest infrastructure so that it can be run with existing kselftests. TDC now generates objects in objdir/kselftest without cluttering main objdir, leaves source directory clean, and installs correctly in kselftest_install, properly adding itself to run_kselftest.sh script. Add tc-testing as a target of selftests/Makefile. Create tdc.sh to run tdc.py targets with correct arguments. To support single target from selftest/Makefile, combine tc-testing/bpf/Makefile and tc-testing/Makefile. Move action.c up a directory to tc-testing/. Tested with: make O=/tmp/{objdir} TARGETS="tc-testing" kselftest cd /tmp/{objdir} cd kselftest cd tc-testing ./tdc.sh make -C tools/testing/selftests/ TARGETS=tc-testing run_tests make TARGETS="tc-testing" kselftest cd tools/testing/selftests ./kselftest_install.sh /tmp/exampledir My VM doesn't run all the kselftests so I commented out all except my target and net/pmtu.sh then: cd /tmp/exampledir && ./run_kselftest.sh Co-developed-by: Davide Caratti <[email protected]> Signed-off-by: Davide Caratti <[email protected]> Signed-off-by: Briana Oursler <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-20testptp: add new options for perout phase and pulse widthVladimir Oltean1-4/+37
Extend the example program for PTP ancillary functionality with the ability to configure not only the periodic output's period (frequency), but also the phase and duty cycle (pulse width) which were newly introduced. The ioctl level also needs to be updated to the new PTP_PEROUT_REQUEST2, since the original PTP_PEROUT_REQUEST doesn't support this functionality. For an in-tree testing program, not having explicit backwards compatibility is fine, as it should always be tested with the current kernel headers and sources. Tested with an oscilloscope on the felix switch PHC: echo '2 0' > /sys/class/ptp/ptp1/pins/switch_1588_dat0 ./testptp -d /dev/ptp1 -p 1000000000 -w 100000000 -H 1000 -i 0 Signed-off-by: Vladimir Oltean <[email protected]> Acked-by: Richard Cochran <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-20testptp: promote 'perout' variable to int64_tVladimir Oltean1-4/+6
Since 'perout' holds the nanosecond value of the signal's period, it should be a 64-bit value. Current assumption is that it cannot be larger than 1 second. Signed-off-by: Vladimir Oltean <[email protected]> Acked-by: Richard Cochran <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-20selftests: add clone3() CAP_CHECKPOINT_RESTORE testAdrian Reber3-1/+186
This adds a test that changes its UID, uses capabilities to get CAP_CHECKPOINT_RESTORE and uses clone3() with set_tid to create a process with a given PID as non-root. Signed-off-by: Adrian Reber <[email protected]> Link: https://lore.kernel.org/r/[email protected] [[email protected]: use TH_LOG() instead of ksft_print_msg()] Signed-off-by: Christian Brauner <[email protected]>
2020-07-20Merge v5.8-rc6 into char-misc-nextGreg Kroah-Hartman31-181/+321
We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-07-18Merge tag 'powerpc-5.8-7' of ↵Linus Torvalds2-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux into master Pull powerpc fixes from Michael Ellerman: "Some more powerpc fixes for 5.8: - A fix to the VAS code we merged this cycle, to report the proper error code to userspace for address translation failures. And a selftest update to match. - Another fix for our pkey handling of PROT_EXEC mappings. - A fix for a crash when booting a "secure VM" under an ultravisor with certain numbers of CPUs. Thanks to: Aneesh Kumar K.V, Haren Myneni, Laurent Dufour, Sandipan Das, Satheesh Rajendran, Thiago Jung Bauermann" * tag 'powerpc-5.8-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: selftests/powerpc: Use proper error code to check fault address powerpc/vas: Report proper error code for address translation failure powerpc/pseries/svm: Fix incorrect check for shared_lppaca_size powerpc/book3s64/pkeys: Fix pkey_access_permitted() for execute disable pkey
2020-07-18Merge branch 'fixes' into nextMichael Ellerman3-5/+5
Merge our fixes branch, primarily to bring in the ebb selftests build fix and the pkey fix, which is a dependency for some future work.
2020-07-17selftests/bpf: Tests for BPF_SK_LOOKUP attach pointJakub Sitnicki4-23/+1960
Add tests to test_progs that exercise: - attaching/detaching/querying programs to BPF_SK_LOOKUP hook, - redirecting socket lookup to a socket selected by BPF program, - failing a socket lookup on BPF program's request, - error scenarios for selecting a socket from BPF program, - accessing BPF program context, - attaching and running multiple BPF programs. Run log: bash-5.0# ./test_progs -n 70 #70/1 query lookup prog:OK #70/2 TCP IPv4 redir port:OK #70/3 TCP IPv4 redir addr:OK #70/4 TCP IPv4 redir with reuseport:OK #70/5 TCP IPv4 redir skip reuseport:OK #70/6 TCP IPv6 redir port:OK #70/7 TCP IPv6 redir addr:OK #70/8 TCP IPv4->IPv6 redir port:OK #70/9 TCP IPv6 redir with reuseport:OK #70/10 TCP IPv6 redir skip reuseport:OK #70/11 UDP IPv4 redir port:OK #70/12 UDP IPv4 redir addr:OK #70/13 UDP IPv4 redir with reuseport:OK #70/14 UDP IPv4 redir skip reuseport:OK #70/15 UDP IPv6 redir port:OK #70/16 UDP IPv6 redir addr:OK #70/17 UDP IPv4->IPv6 redir port:OK #70/18 UDP IPv6 redir and reuseport:OK #70/19 UDP IPv6 redir skip reuseport:OK #70/20 TCP IPv4 drop on lookup:OK #70/21 TCP IPv6 drop on lookup:OK #70/22 UDP IPv4 drop on lookup:OK #70/23 UDP IPv6 drop on lookup:OK #70/24 TCP IPv4 drop on reuseport:OK #70/25 TCP IPv6 drop on reuseport:OK #70/26 UDP IPv4 drop on reuseport:OK #70/27 TCP IPv6 drop on reuseport:OK #70/28 sk_assign returns EEXIST:OK #70/29 sk_assign honors F_REPLACE:OK #70/30 sk_assign accepts NULL socket:OK #70/31 access ctx->sk:OK #70/32 narrow access to ctx v4:OK #70/33 narrow access to ctx v6:OK #70/34 sk_assign rejects TCP established:OK #70/35 sk_assign rejects UDP connected:OK #70/36 multi prog - pass, pass:OK #70/37 multi prog - drop, drop:OK #70/38 multi prog - pass, drop:OK #70/39 multi prog - drop, pass:OK #70/40 multi prog - pass, redir:OK #70/41 multi prog - redir, pass:OK #70/42 multi prog - drop, redir:OK #70/43 multi prog - redir, drop:OK #70/44 multi prog - redir, redir:OK #70 sk_lookup:OK Summary: 1/44 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Jakub Sitnicki <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-17selftests/bpf: Add verifier tests for bpf_sk_lookup context accessJakub Sitnicki1-0/+492
Exercise verifier access checks for bpf_sk_lookup context fields. Signed-off-by: Jakub Sitnicki <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-17kunit: tool: fix improper treatment of file locationBrendan Higgins2-26/+2
Commit 01397e822af4 ("kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig") and commit 45ba7a893ad8 ("kunit: kunit_tool: Separate out config/build/exec/parse") introduced two closely related issues which built off of each other: they excessively created the build directory when not present and modified a constant (constants in Python only exist by convention). Together these issues broken a number of unit tests for KUnit tool, so fix them. Fixed up commit log to fic checkpatch commit description style error. Shuah Khan <[email protected]> Fixes: 01397e822af4 ("kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig") Fixes: 45ba7a893ad8 ("kunit: kunit_tool: Separate out config/build/exec/parse") Signed-off-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-17kunit: tool: fix broken default args in unit testsBrendan Higgins1-5/+5
Commit ddbd60c779b4 ("kunit: use --build_dir=.kunit as default") changed the default build directory for KUnit tests, but failed to update associated unit tests for kunit_tool, so update them. Fixes: ddbd60c779b4 ("kunit: use --build_dir=.kunit as default") Signed-off-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-17kunit: capture stderr on all make subprocess callsWill Chen1-3/+3
Direct stderr to subprocess.STDOUT so error messages get included in the subprocess.CalledProcessError exceptions output field. This results in more meaningful error messages for the user. This is already being done in the make_allyesconfig method. Do the same for make_mrproper, make_olddefconfig, and make methods. With this, failures on unclean trees [1] will give users an error message that includes: "The source tree is not clean, please run 'make ARCH=um mrproper'" [1] https://bugzilla.kernel.org/show_bug.cgi?id=205219 Signed-off-by: Will Chen <[email protected]> Reviewed-by: Brendan Higgins <[email protected]> Tested-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-17selftests/harness: Limit step counter reportingKees Cook1-7/+2
When the selftest "step" counter grew beyond 255, non-fatal warnings were being emitted, which is noisy and pointless. There are selftests with more than 255 steps (especially those in loops, etc). Instead, just cap "steps" to 254 and do not report the saturation. Reported-by: Ralph Campbell <[email protected]> Tested-by: Ralph Campbell <[email protected]> Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-17selftests: net: ip_defrag: modprobe missing nf_defrag_ipv6 supportPaolo Pisati1-0/+2
Fix ip_defrag.sh when CONFIG_NF_DEFRAG_IPV6=m: $ sudo ./ip_defrag.sh + set -e + mktemp -u XXXXXX + readonly NETNS=ns-rGlXcw + trap cleanup EXIT + setup + ip netns add ns-rGlXcw + ip -netns ns-rGlXcw link set lo up + ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_high_thresh=9000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_low_thresh=7000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_time=1 + ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_high_thresh=9000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_low_thresh=7000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_time=1 + ip netns exec ns-rGlXcw sysctl -w net.netfilter.nf_conntrack_frag6_high_thresh=9000000 + cleanup + ip netns del ns-rGlXcw $ ls -la /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh ls: cannot access '/proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh': No such file or directory $ sudo modprobe nf_defrag_ipv6 $ ls -la /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh -rw-r--r-- 1 root root 0 Jul 14 12:34 /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh Signed-off-by: Paolo Pisati <[email protected]> Reviewed-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-17selftests/seccomp: Check ENOSYS under tracingKees Cook1-0/+26
There should be no difference between -1 and other negative syscalls while tracing. Cc: Andy Lutomirski <[email protected]> Cc: Will Drewry <[email protected]> Cc: Will Deacon <[email protected]> Cc: Keno Fischer <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-17selftests/seccomp: Refactor to use fixture variantsKees Cook1-157/+42
Now that the selftest harness has variants, use them to eliminate a bunch of copy/paste duplication. Cc: Andy Lutomirski <[email protected]> Cc: Will Drewry <[email protected]> Cc: Jakub Kicinski <[email protected]> Signed-off-by: Kees Cook <[email protected]> Acked-by: Jakub Kicinski <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-17selftests/harness: Clean up kern-doc for fixturesKees Cook1-7/+8
The FIXTURE*() macro kern-doc examples had the wrong names for the C code examples associated with them. Fix those and clarify that FIXTURE_DATA() usage should be avoided. Cc: Shuah Khan <[email protected]> Cc: Jakub Kicinski <[email protected]> Fixes: 74bc7c97fa88 ("kselftest: add fixture variants") Signed-off-by: Kees Cook <[email protected]> Reviewed-by: Jakub Kicinski <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-17selftests: kmod: Add module address visibility testKees Cook1-0/+36
Make sure we don't regress the CAP_SYSLOG behavior of the module address visibility via /proc/modules nor /sys/module/*/sections/*. Cc: Luis Chamberlain <[email protected]> Cc: Shuah Khan <[email protected]> Cc: [email protected] Signed-off-by: Kees Cook <[email protected]> Reviewed-by: Luis Chamberlain <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2020-07-16selftests/bpf: Fix possible hang in sockopt_inheritStanislav Fomichev1-2/+1
Andrii reported that sockopt_inherit occasionally hangs up on 5.5 kernel [0]. This can happen if server_thread runs faster than the main thread. In that case, pthread_cond_wait will wait forever because pthread_cond_signal was executed before the main thread was blocking. Let's move pthread_mutex_lock up a bit to make sure server_thread runs strictly after the main thread goes to sleep. (Not sure why this is 5.5 specific, maybe scheduling is less deterministic? But I was able to confirm that it does indeed happen in a VM.) [0] https://lore.kernel.org/bpf/CAEf4BzY0-bVNHmCkMFPgObs=isUAyg-dFzGDY7QWYkmm7rmTSg@mail.gmail.com/ Reported-by: Andrii Nakryiko <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-16selftest: Add tests for XDP programs in CPUMAP entriesLorenzo Bianconi2-0/+106
Similar to what have been done for DEVMAP, introduce tests to verify ability to add a XDP program to an entry in a CPUMAP. Verify CPUMAP programs can not be attached to devices as a normal XDP program, and only programs with BPF_XDP_CPUMAP attach type can be loaded in a CPUMAP. Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/9c632fcea5382ea7b4578bd06b6eddf382c3550b.1594734381.git.lorenzo@kernel.org
2020-07-15selftests: mlxsw: Test policers' occupancyIdo Schimmel2-0/+113
Test that policers shared by different tc filters are correctly reference counted by observing policers' occupancy via devlink-resource. Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Petr Machata <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-07-15selftests: mlxsw: Add scale test for tc-policeIdo Schimmel5-2/+126
Query the maximum number of supported policers using devlink-resource and test that this number can be reached by configuring tc filters with police action. Test that an error is returned in case the maximum number is exceeded. Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Petr Machata <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-07-15selftests: mlxsw: tc_restrictions: Test tc-police restrictionsIdo Schimmel1-0/+76
Test that upper and lower limits on rate and burst size imposed by the device are rejected by the kernel. Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Petr Machata <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-07-15selftests: forwarding: Add tc-police testsIdo Schimmel1-0/+333
Test tc-police action in various scenarios such as Rx policing, Tx policing, shared policer and police piped to mirred. The test passes with both veth pairs and loopbacked ports. # ./tc_police.sh TEST: police on rx [ OK ] TEST: police on tx [ OK ] TEST: police with shared policer - rx [ OK ] TEST: police with shared policer - tx [ OK ] TEST: police rx and mirror [ OK ] TEST: police tx and mirror [ OK ] Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Petr Machata <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-07-15selftests/powerpc: Use proper error code to check fault addressHaren Myneni2-4/+4
ERR_NX_TRANSLATION(CSB.CC=5) is for internal to VAS for fault handling and should not used by OS. ERR_NX_AT_FAULT(CSB.CC=250) is the proper error code should be reported by OS when NX encounters address translation failure. This patch uses CC=250 to determine the fault address when the request is not successful. Signed-off-by: Haren Myneni <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-15selftests/livepatch: adopt to newer sysctl error formatPetr Mladek2-2/+3
With procfs v3.3.16, the sysctl command doesn't print the set key and value on error. This change breaks livepatch selftest test-ftrace.sh, that tests the interaction of sysctl ftrace_enabled: Make it work with all sysctl versions using '-q' option. Explicitly print the final status on success so that it can be verified in the log. The error message is enough on failure. Reported-by: Kamalesh Babulal <[email protected]> Signed-off-by: Petr Mladek <[email protected]> Reviewed-by: Kamalesh Babulal <[email protected]> Reviewed-by: Joe Lawrence <[email protected]> Acked-by: Miroslav Benes <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-15selftests/powerpc: Add FPU denormal testNicholas Piggin3-1/+40
Add a testcase that tries to trigger the FPU denormal exception on Power8 or earlier CPUs. Prior to commit 4557ac6b344b ("powerpc/64s/exception: Fix 0x1500 interrupt handler crash") this would trigger a crash such as: Oops: Exception in kernel mode, sig: 5 [#1] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA PowerNV Modules linked in: iptable_mangle xt_MASQUERADE iptable_nat nf_nat xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipt_REJECT nf_reject_ipv4 xt_tcpudp tun bridge stp llc ip6table_filter ip6_tables iptable_filter fuse kvm_hv binfmt_misc squashfs mlx4_ib ib_uverbs dm_multipath scsi_dh_rdac scsi_dh_alua ib_core mlx4_en sr_mod cdrom bnx2x lpfc mlx4_core crc_t10dif scsi_transport_fc sg mdio vmx_crypto crct10dif_vpmsum leds_powernv powernv_rng rng_core led_class powernv_op_panel sunrpc ip_tables x_tables autofs4 CPU: 159 PID: 6854 Comm: fpu_denormal Not tainted 5.8.0-rc2-gcc-8.2.0-00092-g4ec7aaab0828 #192 NIP: c0000000000100ec LR: c00000000001b85c CTR: 0000000000000000 REGS: c000001dd818f770 TRAP: 1500 Not tainted (5.8.0-rc2-gcc-8.2.0-00092-g4ec7aaab0828) MSR: 900000000290b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> CR: 24002884 XER: 20000000 CFAR: c00000000001005c IRQMASK: 1 GPR00: c00000000001c4c8 c000001dd818fa00 c00000000171c200 c000001dd8101570 GPR04: 0000000000000000 c000001dd818fe90 c000001dd8101590 000000000000001d GPR08: 0000000000000010 0000000000002000 c000001dd818fe90 fffffffffc48ac60 GPR12: 0000000000002200 c000001ffff4f480 0000000000000000 0000000000000000 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: 0000000000000000 00007fffab225b40 0000000000000001 c000000001757168 GPR24: c000001dd8101570 c0000018027b00f0 c000001dd8101570 c000000001496098 GPR28: c00000000174ad05 c000001dd8100000 c000001dd8100000 c000001dd8100000 NIP save_fpu+0xa8/0x2ac LR __giveup_fpu+0x2c/0xd0 Call Trace: 0xc000001dd818fa80 (unreliable) giveup_all+0x118/0x120 __switch_to+0x124/0x6c0 __schedule+0x390/0xaf0 do_task_dead+0x70/0x80 do_exit+0x8fc/0xe10 do_group_exit+0x64/0xd0 sys_exit_group+0x24/0x30 system_call_exception+0x164/0x270 system_call_common+0xf0/0x278 Signed-off-by: Nicholas Piggin <[email protected]> [mpe: Split out of fix patch, add oops log] Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-14selftests/seccomp: Test SECCOMP_IOCTL_NOTIF_ADDFDSargun Dhillon1-0/+229
Test whether we can add file descriptors in response to notifications. This injects the file descriptors via notifications, and then uses kcmp to determine whether or not it has been successful. It also includes some basic sanity checking for arguments. Signed-off-by: Sargun Dhillon <[email protected]> Cc: Al Viro <[email protected]> Cc: Chris Palmer <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Jann Horn <[email protected]> Cc: Kees Cook <[email protected]> Cc: Robert Sesek <[email protected]> Cc: Tycho Andersen <[email protected]> Cc: Matt Denton <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Co-developed-by: Kees Cook <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2020-07-14selftests: fib_nexthop_multiprefix: fix cleanup() netns deletionPaolo Pisati1-1/+1
During setup(): ... for ns in h0 r1 h1 h2 h3 do create_ns ${ns} done ... while in cleanup(): ... for n in h1 r1 h2 h3 h4 do ip netns del ${n} 2>/dev/null done ... and after removing the stderr redirection in cleanup(): $ sudo ./fib_nexthop_multiprefix.sh ... TEST: IPv4: host 0 to host 3, mtu 1400 [ OK ] TEST: IPv6: host 0 to host 3, mtu 1400 [ OK ] Cannot remove namespace file "/run/netns/h4": No such file or directory $ echo $? 1 and a non-zero return code, make kselftests fail (even if the test itself is fine): ... not ok 34 selftests: net: fib_nexthop_multiprefix.sh # exit=1 ... Signed-off-by: Paolo Pisati <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-14selftests/livepatch: Use "comm" instead of "diff" for dmesgJoe Lawrence1-1/+1
BusyBox diff doesn't support the GNU diff '--LTYPE-line-format' options that were used in the selftests to filter older kernel log messages from dmesg output. Use "comm" which is more available in smaller boot environments. Reported-by: Naresh Kamboju <[email protected]> Signed-off-by: Joe Lawrence <[email protected]> Reviewed-by: Yannick Cote <[email protected]> Reviewed-by: Kamalesh Babulal <[email protected]> Signed-off-by: Petr Mladek <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-13selftests/bpf: Fix merge conflict resolutionAlexei Starovoitov1-14/+0
Remove double definition of structs. Fixes: 71930d61025e ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net") Signed-off-by: Alexei Starovoitov <[email protected]>
2020-07-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller15-57/+480
Alexei Starovoitov says: ==================== pull-request: bpf-next 2020-07-13 The following pull-request contains BPF updates for your *net-next* tree. We've added 36 non-merge commits during the last 7 day(s) which contain a total of 62 files changed, 2242 insertions(+), 468 deletions(-). The main changes are: 1) Avoid trace_printk warning banner by switching bpf_trace_printk to use its own tracing event, from Alan. 2) Better libbpf support on older kernels, from Andrii. 3) Additional AF_XDP stats, from Ciara. 4) build time resolution of BTF IDs, from Jiri. 5) BPF_CGROUP_INET_SOCK_RELEASE hook, from Stanislav. ==================== Signed-off-by: David S. Miller <[email protected]>
2020-07-13selftests: mlxsw: RED: Test offload of mirror on RED early_drop qeventPetr Machata3-3/+122
Add a selftest for offloading a mirror action attached to the block associated with RED early_drop qevent. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-07-13tools/bpftool: Strip away modifiers from global variablesAndrii Nakryiko2-5/+7
Reliably remove all the type modifiers from read-only (.rodata) global variable definitions, including cases of inner field const modifiers and arrays of const values. Also modify one of selftests to ensure that const volatile struct doesn't prevent user-space from modifying .rodata variable. Fixes: 985ead416df3 ("bpftool: Add skeleton codegen command") Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-13selftests/bpf: Add selftests verifying bpf_trace_printk() behaviourAlan Maguire2-0/+96
Simple selftests that verifies bpf_trace_printk() returns a sensible value and tracing messages appear. Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-13selftests/bpf: Add test for resolve_btfidsJiri Olsa3-1/+175
Adding resolve_btfids test under test_progs suite. It's possible to use btf_ids.h header and its logic in user space application, so we can add easy test for it. The test defines BTF_ID_LIST and checks it gets properly resolved. For this reason the test_progs binary (and other binaries that use TRUNNER* macros) is processed with resolve_btfids tool, which resolves BTF IDs in .BTF_ids section. The BTF data are taken from btf_data.o object rceated from progs/btf_data.c. Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Tested-by: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-07-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller31-182/+332
All conflicts seemed rather trivial, with some guidance from Saeed Mameed on the tc_ct.c one. Signed-off-by: David S. Miller <[email protected]>
2020-07-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds11-22/+127
Pull networking fixes from David Miller: 1) Restore previous behavior of CAP_SYS_ADMIN wrt loading networking BPF programs, from Maciej Żenczykowski. 2) Fix dropped broadcasts in mac80211 code, from Seevalamuthu Mariappan. 3) Slay memory leak in nl80211 bss color attribute parsing code, from Luca Coelho. 4) Get route from skb properly in ip_route_use_hint(), from Miaohe Lin. 5) Don't allow anything other than ARPHRD_ETHER in llc code, from Eric Dumazet. 6) xsk code dips too deeply into DMA mapping implementation internals. Add dma_need_sync and use it. From Christoph Hellwig 7) Enforce power-of-2 for BPF ringbuf sizes. From Andrii Nakryiko. 8) Check for disallowed attributes when loading flow dissector BPF programs. From Lorenz Bauer. 9) Correct packet injection to L3 tunnel devices via AF_PACKET, from Jason A. Donenfeld. 10) Don't advertise checksum offload on ipa devices that don't support it. From Alex Elder. 11) Resolve several issues in TCP MD5 signature support. Missing memory barriers, bogus options emitted when using syncookies, and failure to allow md5 key changes in established states. All from Eric Dumazet. 12) Fix interface leak in hsr code, from Taehee Yoo. 13) VF reset fixes in hns3 driver, from Huazhong Tan. 14) Make loopback work again with ipv6 anycast, from David Ahern. 15) Fix TX starvation under high load in fec driver, from Tobias Waldekranz. 16) MLD2 payload lengths not checked properly in bridge multicast code, from Linus Lüssing. 17) Packet scheduler code that wants to find the inner protocol currently only works for one level of VLAN encapsulation. Allow Q-in-Q situations to work properly here, from Toke Høiland-Jørgensen. 18) Fix route leak in l2tp, from Xin Long. 19) Resolve conflict between the sk->sk_user_data usage of bpf reuseport support and various protocols. From Martin KaFai Lau. 20) Fix socket cgroup v2 reference counting in some situations, from Cong Wang. 21) Cure memory leak in mlx5 connection tracking offload support, from Eli Britstein. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (146 commits) mlxsw: pci: Fix use-after-free in case of failed devlink reload mlxsw: spectrum_router: Remove inappropriate usage of WARN_ON() net: macb: fix call to pm_runtime in the suspend/resume functions net: macb: fix macb_suspend() by removing call to netif_carrier_off() net: macb: fix macb_get/set_wol() when moving to phylink net: macb: mark device wake capable when "magic-packet" property present net: macb: fix wakeup test in runtime suspend/resume routines bnxt_en: fix NULL dereference in case SR-IOV configuration fails libbpf: Fix libbpf hashmap on (I)LP32 architectures net/mlx5e: CT: Fix memory leak in cleanup net/mlx5e: Fix port buffers cell size value net/mlx5e: Fix 50G per lane indication net/mlx5e: Fix CPU mapping after function reload to avoid aRFS RX crash net/mlx5e: Fix VXLAN configuration restore after function reload net/mlx5e: Fix usage of rcu-protected pointer net/mxl5e: Verify that rpriv is not NULL net/mlx5: E-Switch, Fix vlan or qos setting in legacy mode net/mlx5: Fix eeprom support for SFP module cgroup: Fix sock_cgroup_data on big-endian. selftests: bpf: Fix detach from sockmap tests ...
2020-07-11selftests/bpf: Fix cgroup sockopt verifier testJean-Philippe Brucker1-0/+1
Since the BPF_PROG_TYPE_CGROUP_SOCKOPT verifier test does not set an attach type, bpf_prog_load_check_attach() disallows loading the program and the test is always skipped: #434/p perfevent for cgroup sockopt SKIP (unsupported program type 25) Fix the issue by setting a valid attach type. Fixes: 0456ea170cd6 ("bpf: Enable more helpers for BPF_PROG_TYPE_CGROUP_{DEVICE,SYSCTL,SOCKOPT}") Signed-off-by: Jean-Philippe Brucker <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
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