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2023-02-01kselftest/arm64: Fix enumeration of systems without 128 bit SME for SSVE+ZAMark Brown1-0/+4
The current signal handling tests for SME do not account for the fact that unlike SVE all SME vector lengths are optional so we can't guarantee that we will encounter the minimum possible VL, they will hang enumerating VLs on such systems. Abort enumeration when we find the lowest VL in the newly added ssve_za_regs test. Fixes: bc69da5ff087 ("kselftest/arm64: Verify simultaneous SSVE and ZA context generation") Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/20230131-arm64-kselftest-sig-sme-no-128-v1-2-d47c13dc8e1e@kernel.org Signed-off-by: Catalin Marinas <[email protected]>
2023-02-01kselftest/arm64: Fix enumeration of systems without 128 bit SMEMark Brown2-0/+8
The current signal handling tests for SME do not account for the fact that unlike SVE all SME vector lengths are optional so we can't guarantee that we will encounter the minimum possible VL, they will hang enumerating VLs on such systems. Abort enumeration when we find the lowest VL. Fixes: 4963aeb35a9e ("kselftest/arm64: signal: Add SME signal handling tests") Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/20230131-arm64-kselftest-sig-sme-no-128-v1-1-d47c13dc8e1e@kernel.org Signed-off-by: Catalin Marinas <[email protected]>
2023-02-01kselftest/arm64: Don't require FA64 for streaming SVE testsMark Brown1-6/+1
During early development a dependedncy was added on having FA64 available so we could use the full FPSIMD register set in the signal handler. Subsequently the ABI was finialised so the handler is run with streaming mode disabled meaning this is redundant but the dependency was never removed, do so now. Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
2023-01-31selftests: net: forwarding: lib: Drop lldpad_app_wait_set(), _del()Petr Machata1-21/+0
The existing users of these helpers have been converted to iproute2 dcb. Drop the helpers. Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Danielle Ratson <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2023-01-31selftests: mlxsw: qos_defprio: Convert from lldptool to dcbPetr Machata1-52/+16
Set up default port priority through the iproute2 dcb tool, which is easier to understand and manage. Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Danielle Ratson <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2023-01-31selftests: mlxsw: qos_dscp_router: Convert from lldptool to dcbPetr Machata1-21/+6
Set up DSCP prioritization through the iproute2 dcb tool, which is easier to understand and manage. Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Danielle Ratson <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2023-01-31selftests: mlxsw: qos_dscp_bridge: Convert from lldptool to dcbPetr Machata1-18/+5
Set up DSCP prioritization through the iproute2 dcb tool, which is easier to understand and manage. Signed-off-by: Petr Machata <[email protected]> Reviewed-by: Danielle Ratson <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2023-01-31Sync mm-stable with mm-hotfixes-stable to pick up dependent patchesAndrew Morton2-1/+0
Merge branch 'mm-hotfixes-stable' into mm-stable
2023-01-31cgroup/cpuset: Fix wrong check in update_parent_subparts_cpumask()Waiman Long1-0/+1
It was found that the check to see if a partition could use up all the cpus from the parent cpuset in update_parent_subparts_cpumask() was incorrect. As a result, it is possible to leave parent with no effective cpu left even if there are tasks in the parent cpuset. This can lead to system panic as reported in [1]. Fix this probem by updating the check to fail the enabling the partition if parent's effective_cpus is a subset of the child's cpus_allowed. Also record the error code when an error happens in update_prstate() and add a test case where parent partition and child have the same cpu list and parent has task. Enabling partition in the child will fail in this case. [1] https://www.spinics.net/lists/cgroups/msg36254.html Fixes: f0af1bfc27b5 ("cgroup/cpuset: Relax constraints to partition & cpus changes") Cc: [email protected] # v6.1 Reported-by: Srinivas Pandruvada <[email protected]> Signed-off-by: Waiman Long <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2023-01-31kselftest/arm64: Remove redundant _start labels from zt-testMark Brown1-1/+0
The newly added zt-test program copied the pattern from the other FP stress test programs of having a redundant _start label which is rejected by clang, as we did in a parallel series for the other tests remove the label so we can build with clang. No functional change. Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Catalin Marinas <[email protected]>
2023-01-31kselftest/arm64: Limit the maximum VL we try to set via ptraceMark Brown2-4/+24
When SVE was initially merged we chose to export the maximum VQ in the ABI as being 512, rather more than the architecturally supported maximum of 16. For the ptrace tests this results in us generating a lot of test cases and hence log output which are redundant since a system couldn't possibly support them. Instead only check values up to the current architectural limit, plus one more so that we're covering the constraining of higher vector lengths. This makes no practical difference to our test coverage, speeds things up on slower consoles and makes the output much more managable. Signed-off-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/20230111-arm64-kselftest-ptrace-max-vl-v1-1-8167f41d1ad8@kernel.org Signed-off-by: Catalin Marinas <[email protected]>
2023-01-31Merge tag 'v6.2-rc6' into sched/core, to pick up fixesIngo Molnar36-250/+680
Pick up fixes before merging another batch of cpuidle updates. Signed-off-by: Ingo Molnar <[email protected]>
2023-01-30selftests: core: Fix incorrect kernel headers search pathMathieu Desnoyers1-1/+1
Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers <[email protected]> Cc: Shuah Khan <[email protected]> Cc: [email protected] Cc: Ingo Molnar <[email protected]> Cc: <[email protected]> # 5.18+ Signed-off-by: Shuah Khan <[email protected]>
2023-01-30selftests: clone3: Fix incorrect kernel headers search pathMathieu Desnoyers1-1/+1
Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers <[email protected]> Cc: Shuah Khan <[email protected]> Cc: [email protected] Cc: Ingo Molnar <[email protected]> Cc: <[email protected]> # 5.18+ Acked-by: Shuah Khan <[email protected]> Acked-by: Christian Brauner <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-01-30selftests: arm64: Fix incorrect kernel headers search pathMathieu Desnoyers2-2/+2
Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers <[email protected]> Cc: Shuah Khan <[email protected]> Cc: [email protected] Cc: Ingo Molnar <[email protected]> Cc: <[email protected]> # 5.18+ Acked-by: Shuah Khan <[email protected]> Acked-by: Catalin Marinas <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2023-01-30selftests/seccomp: Add m68k supportMichael Schmitz1-1/+7
Add m68k seccomp definitions to seccomp_bpf self test code. Tested on ARAnyM. Signed-off-by: Michael Schmitz <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Geert Uytterhoeven <[email protected]>
2023-01-30KVM: selftests: Fix build of rseq testMark Brown1-13/+3
The KVM rseq test is failing to build in -next due to a commit merged from the tip tree which adds a wrapper for sys_getcpu() to the rseq kselftests, conflicting with the wrapper already included in the KVM selftest: rseq_test.c:48:13: error: conflicting types for 'sys_getcpu' 48 | static void sys_getcpu(unsigned *cpu) | ^~~~~~~~~~ In file included from rseq_test.c:23: ../rseq/rseq.c:82:12: note: previous definition of 'sys_getcpu' was here 82 | static int sys_getcpu(unsigned *cpu, unsigned *node) | ^~~~~~~~~~ Fix this by removing the local wrapper and moving the result check up to the caller. Fixes: 99babd04b250 ("selftests/rseq: Implement rseq numa node id field selftest") Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Mathieu Desnoyers <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-01-29selftests/bpf: Trim DENYLIST.s390xIlya Leoshkevich1-69/+0
Now that trampoline is implemented, enable a number of tests on s390x. 18 of the remaining failures have to do with either lack of rethook (fixed by [1]) or syscall symbols missing from BTF (fixed by [2]). Do not re-classify the remaining failures for now; wait until the s390/for-next fixes are merged and re-classify only the remaining few. [1] https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git/commit/?h=for-next&id=1a280f48c0e403903cf0b4231c95b948e664f25a [2] https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git/commit/?h=for-next&id=2213d44e140f979f4b60c3c0f8dd56d151cc8692 Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-29selftests/bpf: Fix s390x vmlinux pathIlya Leoshkevich1-1/+1
After commit edd4a8667355 ("s390/boot: get rid of startup archive") there is no more compressed/ subdirectory. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-29selftests/bpf: Fix sk_assign on s390xIlya Leoshkevich3-6/+33
sk_assign is failing on an s390x machine running Debian "bookworm" for 2 reasons: legacy server_map definition and uninitialized addrlen in recvfrom() call. Fix by adding a new-style server_map definition and dropping addrlen (recvfrom() allows NULL values for src_addr and addrlen). Since the test should support tc built without libbpf, build the prog twice: with the old-style definition and with the new-style definition, then select the right one at runtime. This could be done at compile time too, but this would not be cross-compilation friendly. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-29KVM: selftests: aarch64: Test read-only PT memory regionsRicardo Koller1-7/+11
Extend the read-only memslot tests in page_fault_test to test read-only PT (Page table) memslots. Note that this was not allowed before commit 406504c7b040 ("KVM: arm64: Fix S1PTW handling on RO memslots") as all S1PTW faults were treated as writes which resulted in an (unrecoverable) exception inside the guest. Signed-off-by: Ricardo Koller <[email protected]> Reviewed-by: Oliver Upton <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-01-29KVM: selftests: aarch64: Fix check of dirty log PT writeRicardo Koller1-2/+5
The dirty log checks are mistakenly testing the first page in the page table (PT) memory region instead of the page holding the test data page PTE. This wasn't an issue before commit 406504c7b040 ("KVM: arm64: Fix S1PTW handling on RO memslots") as all PT pages (including the first page) were treated as writes. Fix the page_fault_test dirty logging tests by checking for the right page: the one for the PTE of the data test page. Fixes: a4edf25b3e25 ("KVM: selftests: aarch64: Add dirty logging tests into page_fault_test") Signed-off-by: Ricardo Koller <[email protected]> Reviewed-by: Oliver Upton <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-01-29KVM: selftests: aarch64: Do not default to dirty PTE pages on all S1PTWsRicardo Koller1-33/+60
Only Stage1 Page table walks (S1PTW) trying to write into a PTE should result in the PTE page being dirty in the log. However, the dirty log tests in page_fault_test default to treat all S1PTW accesses as writes. Fix the relevant tests by asserting dirty pages only for S1PTW writes, which in these tests only applies to when Hardware management of the Access Flag is enabled. Signed-off-by: Ricardo Koller <[email protected]> Reviewed-by: Oliver Upton <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-01-29KVM: selftests: aarch64: Relax userfaultfd read vs. write checksRicardo Koller1-49/+34
Only Stage1 Page table walks (S1PTW) writing a PTE on an unmapped page should result in a userfaultfd write. However, the userfaultfd tests in page_fault_test wrongly assert that any S1PTW is a PTE write. Fix this by relaxing the read vs. write checks in all userfaultfd handlers. Note that this is also an attempt to focus less on KVM (and userfaultfd) behavior, and more on architectural behavior. Also note that after commit 406504c7b040 ("KVM: arm64: Fix S1PTW handling on RO memslots"), the userfaultfd fault (S1PTW with AF on an unmaped PTE page) is actually a read: the translation fault that comes before the permission fault. Signed-off-by: Ricardo Koller <[email protected]> Reviewed-by: Oliver Upton <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-01-28selftests/bpf: Fix profiler on s390xIlya Leoshkevich1-24/+38
Use bpf_probe_read_kernel() and bpf_probe_read_kernel_str() instead of bpf_probe_read() and bpf_probe_read_kernel(). Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix xdp_synproxy/tc on s390xIlya Leoshkevich1-1/+1
Use the correct datatype for the values map values; currently the test works by accident, since on little-endian machines it is sometimes acceptable to access u64 as u32. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix vmlinux test on s390xIlya Leoshkevich1-2/+2
Use a syscall macro to access the nanosleep()'s first argument; currently the code uses gprs[2] instead of orig_gpr2. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix test_xdp_adjust_tail_grow2 on s390xIlya Leoshkevich2-2/+13
s390x cache line size is 256 bytes, so skb_shared_info must be aligned on a much larger boundary than for x86. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix test_lsm on s390xIlya Leoshkevich1-3/+4
Use syscall macros to access the setdomainname() arguments; currently the code uses gprs[2] instead of orig_gpr2 for the first argument. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Add a sign-extension test for kfuncsIlya Leoshkevich2-0/+19
s390x ABI requires the caller to zero- or sign-extend the arguments. eBPF already deals with zero-extension (by definition of its ABI), but not with sign-extension. Add a test to cover that potentially problematic area. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Increase SIZEOF_BPF_LOCAL_STORAGE_ELEM on s390xIlya Leoshkevich1-3/+3
sizeof(struct bpf_local_storage_elem) is 512 on s390x: struct bpf_local_storage_elem { struct hlist_node map_node; /* 0 16 */ struct hlist_node snode; /* 16 16 */ struct bpf_local_storage * local_storage; /* 32 8 */ struct callback_head rcu __attribute__((__aligned__(8))); /* 40 16 */ /* XXX 200 bytes hole, try to pack */ /* --- cacheline 1 boundary (256 bytes) --- */ struct bpf_local_storage_data sdata __attribute__((__aligned__(256))); /* 256 8 */ /* size: 512, cachelines: 2, members: 5 */ /* sum members: 64, holes: 1, sum holes: 200 */ /* padding: 248 */ /* forced alignments: 2, forced holes: 1, sum forced holes: 200 */ } __attribute__((__aligned__(256))); As the existing comment suggests, use a larger number in order to be future-proof. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Check stack_mprotect() return valueIlya Leoshkevich2-3/+6
If stack_mprotect() succeeds, errno is not changed. This can produce misleading error messages, that show stale errno. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix cgrp_local_storage on s390xIlya Leoshkevich1-1/+1
Sync the definition of socket_cookie between the eBPF program and the test. Currently the test works by accident, since on little-endian it is sometimes acceptable to access u64 as u32. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix xdp_do_redirect on s390xIlya Leoshkevich1-0/+4
s390x cache line size is 256 bytes, so skb_shared_info must be aligned on a much larger boundary than for x86. This makes the maximum packet size smaller. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix verify_pkcs7_sig on s390xIlya Leoshkevich2-4/+11
Use bpf_probe_read_kernel() instead of bpf_probe_read(), which is not defined on all architectures. While at it, improve the error handling: do not hide the verifier log, and check the return values of bpf_probe_read_kernel() and bpf_copy_from_user(). Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix decap_sanity_ns cleanupIlya Leoshkevich1-1/+1
decap_sanity prints the following on the 1st run: decap_sanity: sh: 1: Syntax error: Bad fd number and the following on the 2nd run: Cannot create namespace file "/run/netns/decap_sanity_ns": File exists The problem is that the cleanup command has a typo and does nothing. Fix the typo. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Set errno when urand_spawn() failsIlya Leoshkevich1-0/+1
The result of urand_spawn() is checked with ASSERT_OK_PTR, which treats NULL as success if errno == 0. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix kfree_skb on s390xIlya Leoshkevich1-1/+1
h_proto is big-endian; use htons() in order to make comparison work on both little- and big-endian machines. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix symlink creation errorIlya Leoshkevich1-1/+2
When building with O=, the following error occurs: ln: failed to create symbolic link 'no_alu32/bpftool': No such file or directory Adjust the code to account for $(OUTPUT). Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Fix liburandom_read.so linker errorIlya Leoshkevich1-1/+1
When building with O=, the following linker error occurs: clang: error: no such file or directory: 'liburandom_read.so' Fix by adding $(OUTPUT) to the linker search path. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftests/bpf: Query BPF_MAX_TRAMP_LINKS using BTFIlya Leoshkevich4-13/+65
Do not hard-code the value, since for s390x it will be smaller than for x86. Signed-off-by: Ilya Leoshkevich <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-01-28selftest: net: Improve IPV6_TCLASS/IPV6_HOPLIMIT tests apparmor compatibilityAndrei Gherzan1-1/+1
"tcpdump" is used to capture traffic in these tests while using a random, temporary and not suffixed file for it. This can interfere with apparmor configuration where the tool is only allowed to read from files with 'known' extensions. The MINE type application/vnd.tcpdump.pcap was registered with IANA for pcap files and .pcap is the extension that is both most common but also aligned with standard apparmor configurations. See TCPDUMP(8) for more details. This improves compatibility with standard apparmor configurations by using ".pcap" as the file extension for the tests' temporary files. Signed-off-by: Andrei Gherzan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2023-01-28Merge tag 'for-netdev' of ↵Jakub Kicinski47-1086/+3176
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Daniel Borkmann says: ==================== bpf-next 2023-01-28 We've added 124 non-merge commits during the last 22 day(s) which contain a total of 124 files changed, 6386 insertions(+), 1827 deletions(-). The main changes are: 1) Implement XDP hints via kfuncs with initial support for RX hash and timestamp metadata kfuncs, from Stanislav Fomichev and Toke Høiland-Jørgensen. Measurements on overhead: https://lore.kernel.org/bpf/[email protected] 2) Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case, from Andrii Nakryiko. 3) Significantly reduce the search time for module symbols by livepatch and BPF, from Jiri Olsa and Zhen Lei. 4) Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals, from David Vernet. 5) Fix several issues in the dynptr processing such as stack slot liveness propagation, missing checks for PTR_TO_STACK variable offset, etc, from Kumar Kartikeya Dwivedi. 6) Various performance improvements, fixes, and introduction of more than just one XDP program to XSK selftests, from Magnus Karlsson. 7) Big batch to BPF samples to reduce deprecated functionality, from Daniel T. Lee. 8) Enable struct_ops programs to be sleepable in verifier, from David Vernet. 9) Reduce pr_warn() noise on BTF mismatches when they are expected under the CONFIG_MODULE_ALLOW_BTF_MISMATCH config anyway, from Connor O'Brien. 10) Describe modulo and division by zero behavior of the BPF runtime in BPF's instruction specification document, from Dave Thaler. 11) Several improvements to libbpf API documentation in libbpf.h, from Grant Seltzer. 12) Improve resolve_btfids header dependencies related to subcmd and add proper support for HOSTCC, from Ian Rogers. 13) Add ipip6 and ip6ip decapsulation support for bpf_skb_adjust_room() helper along with BPF selftests, from Ziyang Xuan. 14) Simplify the parsing logic of structure parameters for BPF trampoline in the x86-64 JIT compiler, from Pu Lehui. 15) Get BTF working for kernels with CONFIG_RUST enabled by excluding Rust compilation units with pahole, from Martin Rodriguez Reboredo. 16) Get bpf_setsockopt() working for kTLS on top of TCP sockets, from Kui-Feng Lee. 17) Disable stack protection for BPF objects in bpftool given BPF backends don't support it, from Holger Hoffstätte. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (124 commits) selftest/bpf: Make crashes more debuggable in test_progs libbpf: Add documentation to map pinning API functions libbpf: Fix malformed documentation formatting selftests/bpf: Properly enable hwtstamp in xdp_hw_metadata selftests/bpf: Calls bpf_setsockopt() on a ktls enabled socket. bpf: Check the protocol of a sock to agree the calls to bpf_setsockopt(). bpf/selftests: Verify struct_ops prog sleepable behavior bpf: Pass const struct bpf_prog * to .check_member libbpf: Support sleepable struct_ops.s section bpf: Allow BPF_PROG_TYPE_STRUCT_OPS programs to be sleepable selftests/bpf: Fix vmtest static compilation error tools/resolve_btfids: Alter how HOSTCC is forced tools/resolve_btfids: Install subcmd headers bpf/docs: Document the nocast aliasing behavior of ___init bpf/docs: Document how nested trusted fields may be defined bpf/docs: Document cpumask kfuncs in a new file selftests/bpf: Add selftest suite for cpumask kfuncs selftests/bpf: Add nested trust selftests suite bpf: Enable cpumasks to be queried and used as kptrs bpf: Disallow NULLable pointers for trusted kfuncs ... ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-01-27Merge tag 'for-netdev' of ↵Jakub Kicinski2-18/+99
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== bpf 2023-01-27 We've added 10 non-merge commits during the last 9 day(s) which contain a total of 10 files changed, 170 insertions(+), 59 deletions(-). The main changes are: 1) Fix preservation of register's parent/live fields when copying range-info, from Eduard Zingerman. 2) Fix an off-by-one bug in bpf_mem_cache_idx() to select the right cache, from Hou Tao. 3) Fix stack overflow from infinite recursion in sock_map_close(), from Jakub Sitnicki. 4) Fix missing btf_put() in register_btf_id_dtor_kfuncs()'s error path, from Jiri Olsa. 5) Fix a splat from bpf_setsockopt() via lsm_cgroup/socket_sock_rcv_skb, from Kui-Feng Lee. 6) Fix bpf_send_signal[_thread]() helpers to hold a reference on the task, from Yonghong Song. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf: Fix the kernel crash caused by bpf_setsockopt(). selftests/bpf: Cover listener cloning with progs attached to sockmap selftests/bpf: Pass BPF skeleton to sockmap_listen ops tests bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself bpf: Add missing btf_put to register_btf_id_dtor_kfuncs selftests/bpf: Verify copy_register_state() preserves parent/live fields bpf: Fix to preserve reg parent/live fields when copying range info bpf: Fix a possible task gone issue with bpf_send_signal[_thread]() helpers bpf: Fix off-by-one error in bpf_mem_cache_idx() ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-01-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-6/+5
Conflicts: drivers/net/ethernet/intel/ice/ice_main.c 418e53401e47 ("ice: move devlink port creation/deletion") 643ef23bd9dd ("ice: Introduce local var for readability") https://lore.kernel.org/all/[email protected]/ https://lore.kernel.org/all/[email protected]/ drivers/net/ethernet/engleder/tsnep_main.c 3d53aaef4332 ("tsnep: Fix TX queue stop/wake for multiple queues") 25faa6a4c5ca ("tsnep: Replace TX spin_lock with __netif_tx_lock") https://lore.kernel.org/all/[email protected]/ net/netfilter/nf_conntrack_proto_sctp.c 13bd9b31a969 ("Revert "netfilter: conntrack: add sctp DATA_SENT state"") a44b7651489f ("netfilter: conntrack: unify established states for SCTP paths") f71cb8f45d09 ("netfilter: conntrack: sctp: use nf log infrastructure for invalid packets") https://lore.kernel.org/all/[email protected]/ https://lore.kernel.org/all/[email protected]/ Signed-off-by: Jakub Kicinski <[email protected]>
2023-01-27selftest/bpf: Make crashes more debuggable in test_progsStanislav Fomichev1-2/+2
Reset stdio before printing verbose log of the SIGSEGV'ed test. Otherwise, it's hard to understand what's going on in the cases like [0]. With the following patch applied: --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c @@ -392,6 +392,11 @@ void test_xdp_metadata(void) "generate freplace packet")) goto out; + + ASSERT_EQ(1, 2, "oops"); + int *x = 0; + *x = 1; /* die */ + while (!retries--) { if (bpf_obj2->bss->called) break; Before: #281 xdp_metadata:FAIL Caught signal #11! Stack trace: ./test_progs(crash_handler+0x1f)[0x55c919d98bcf] /lib/x86_64-linux-gnu/libc.so.6(+0x3bf90)[0x7f36aea5df90] ./test_progs(test_xdp_metadata+0x1db0)[0x55c919d8c6d0] ./test_progs(+0x23b438)[0x55c919d9a438] ./test_progs(main+0x534)[0x55c919d99454] /lib/x86_64-linux-gnu/libc.so.6(+0x2718a)[0x7f36aea4918a] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x85)[0x7f36aea49245] ./test_progs(_start+0x21)[0x55c919b82ef1] After: test_xdp_metadata:PASS:ip netns add xdp_metadata 0 nsec open_netns:PASS:malloc token 0 nsec open_netns:PASS:open /proc/self/ns/net 0 nsec open_netns:PASS:open netns fd 0 nsec open_netns:PASS:setns 0 nsec .. test_xdp_metadata:FAIL:oops unexpected oops: actual 1 != expected 2 #281 xdp_metadata:FAIL Caught signal #11! Stack trace: ./test_progs(crash_handler+0x1f)[0x562714a76bcf] /lib/x86_64-linux-gnu/libc.so.6(+0x3bf90)[0x7fa663f9cf90] ./test_progs(test_xdp_metadata+0x1db0)[0x562714a6a6d0] ./test_progs(+0x23b438)[0x562714a78438] ./test_progs(main+0x534)[0x562714a77454] /lib/x86_64-linux-gnu/libc.so.6(+0x2718a)[0x7fa663f8818a] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x85)[0x7fa663f88245] ./test_progs(_start+0x21)[0x562714860ef1] 0: https://github.com/kernel-patches/bpf/actions/runs/4019879316/jobs/6907358876 Signed-off-by: Stanislav Fomichev <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Martin KaFai Lau <[email protected]>
2023-01-27Merge tag 'linux-kselftest-fixes-6.2-rc6' of ↵Linus Torvalds1-5/+0
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fixes from Shuah Khan: "A single fix to a amd-pstate test Makefile bug that deletes source files during make clean run" * tag 'linux-kselftest-fixes-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: amd-pstate: Don't delete source files via Makefile
2023-01-27selftests/landlock: Test ptrace as much as possible with YamaJeff Xu1-17/+96
Update ptrace tests according to all potential Yama security policies. This is required to make such tests pass even if Yama is enabled. Tests are not skipped but they now check both Landlock and Yama boundary restrictions at run time to keep a maximum test coverage (i.e. positive and negative testing). Signed-off-by: Jeff Xu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Cc: [email protected] [mic: Add curly braces around EXPECT_EQ() to make it build, and improve commit message] Co-developed-by: Mickaël Salaün <[email protected]> Signed-off-by: Mickaël Salaün <[email protected]>
2023-01-26selftests/bpf: Properly enable hwtstamp in xdp_hw_metadataStanislav Fomichev1-1/+44
The existing timestamping_enable() is a no-op because it applies to the socket-related path that we are not verifying here anymore. (but still leaving the code around hoping we can have xdp->skb path verified here as well) poll: 1 (0) xsk_ring_cons__peek: 1 0xf64788: rx_desc[0]->addr=100000000008000 addr=8100 comp_addr=8000 rx_hash: 3697961069 rx_timestamp: 1674657672142214773 (sec:1674657672.1422) XDP RX-time: 1674657709561774876 (sec:1674657709.5618) delta sec:37.4196 AF_XDP time: 1674657709561871034 (sec:1674657709.5619) delta sec:0.0001 (96.158 usec) 0xf64788: complete idx=8 addr=8000 Also, maybe something to archive here, see [0] for Jesper's note about NIC vs host clock delta. 0: https://lore.kernel.org/bpf/[email protected]/ v2: - Restore original value (Martin) Fixes: 297a3f124155 ("selftests/bpf: Simple program to dump XDP RX metadata") Reported-by: Jesper Dangaard Brouer <[email protected]> Tested-by: Jesper Dangaard Brouer <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Martin KaFai Lau <[email protected]>
2023-01-26testing: kselftest_harness: add filtering and enumerating testsJakub Kicinski1-5/+137
As the number of test cases and length of execution grows it's useful to select only a subset of tests. In TLS for instance we have a matrix of variants for different crypto protocols and during development mostly care about testing a handful. This is quicker and makes reading output easier. This patch adds argument parsing to kselftest_harness. It supports a couple of ways to filter things, I could not come up with one way which will cover all cases. The first and simplest switch is -r which takes the name of a test to run (can be specified multiple times). For example: $ ./my_test -r some.test.name -r some.other.name will run tests some.test.name and some.other.name (where "some" is the fixture, "test" and "other" and "name is the test.) Then there is a handful of group filtering options. f/v/t for filtering by fixture/variant/test. They have both positive (match -> run) and negative versions (match -> skip). If user specifies any positive option we assume the default is not to run the tests. If only negative options are set we assume the tests are supposed to be run by default. Usage: ./tools/testing/selftests/net/tls [-h|-l] [-t|-T|-v|-V|-f|-F|-r name] -h print help -l list all tests -t name include test -T name exclude test -v name include variant -V name exclude variant -f name include fixture -F name exclude fixture -r name run specified test Test filter options can be specified multiple times. The filtering stops at the first match. For example to include all tests from variant 'bla' but not test 'foo' specify '-T foo -v bla'. Here we can request for example all tests from fixture "foo" to run: ./my_test -f foo or to skip variants var1 and var2: ./my_test -V var1 -V var2 Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
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