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2020-09-30selftests: mlxsw: Add a PFC testPetr Machata1-0/+403
Add a test for PFC. Runs 10MB of traffic through a bottleneck and checks that none of it gets lost. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-30selftests: mlxsw: Add headroom handling testPetr Machata1-0/+379
Add a test for headroom configuration. This covers projection of ETS configuration to ingress, PFC, adjustments for MTU, the qdisc / TC mode and the effect of egress SPAN session on buffer configuration. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-30selftests: mlxsw: qos_lib: Add a wrapper for running mlnx_qosPetr Machata1-0/+14
mlnx_qos is a script for configuration of DCB. Despite the name it is not actually Mellanox-specific in any way. It is currently the only ad-hoc tool available (in contrast to a daemon that manages an interface on an ongoing basis). However, it is very verbose and parsing out error messages is not really possible. Add a wrapper that makes it easier to use the tool. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-30selftests: forwarding: devlink_lib: Support port-less topologiesPetr Machata1-1/+1
Some selftests may not need any actual ports. Technically those are not forwarding selftests, but devlink_lib can still be handy. Fall back on NETIF_NO_CABLE in those cases. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-30selftests: forwarding: devlink_lib: Add devlink_cell_size_get()Petr Machata1-0/+6
Add a helper that answers the cell size of the devlink device. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-30selftests: forwarding: devlink_lib: Split devlink_..._set() into save & setPetr Machata5-11/+72
Changing pool type from static to dynamic causes reinterpretation of threshold values. They therefore need to be saved before pool type is changed, then the pool type can be changed, and then the new values need to be set up. For that reason, set cannot subsume save, because it would be saving the wrong thing, with possibly a nonsensical value, and restore would then fail to restore the nonsensical value. Thus extract a _save() from each of the relevant _set()'s. This way it is possible to save everything up front, then to tweak it, and then restore in the required order. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-30selftests/bpf: Test "incremental" btf_dump in C formatAndrii Nakryiko1-0/+105
Add test validating that btf_dump works fine with BTFs that are modified and incrementally generated. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-30bpf, selftests: Add redirect_neigh selftestDaniel Borkmann2-0/+312
Add a small test that exercises the new redirect_neigh() helper for the IPv4 and IPv6 case. Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Martin KaFai Lau <[email protected]> Link: https://lore.kernel.org/bpf/0fc7d9c5f9a6cc1c65b0d3be83b44b1ec9889f43.1601477936.git.daniel@iogearbox.net
2020-09-30bpf, selftests: Use bpf_tail_call_static where appropriateDaniel Borkmann8-40/+40
For those locations where we use an immediate tail call map index use the newly added bpf_tail_call_static() helper. Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Martin KaFai Lau <[email protected]> Link: https://lore.kernel.org/bpf/3cfb2b799a62d22c6e7ae5897c23940bdcc24cbc.1601477936.git.daniel@iogearbox.net
2020-09-30selftests: netfilter: add time counter checkFabian Frederick1-2/+8
Check packets are correctly placed in current year. Also do a NULL check for another one. Signed-off-by: Fabian Frederick <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2020-09-29selftests/bpf: Fix endianness issues in sk_lookup/ctx_narrow_accessIlya Leoshkevich1-115/+101
This test makes a lot of narrow load checks while assuming little endian architecture, and therefore fails on s390. Fix by introducing LSB and LSW macros and using them to perform narrow loads. Fixes: 0ab5539f8584 ("selftests/bpf: Tests for BPF_SK_LOOKUP attach point") Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29bpf, selftests: Fix warning in snprintf_btf where system() call uncheckedJohn Fastabend1-1/+3
On my systems system() calls are marked with warn_unused_result apparently. So without error checking we get this warning, ./prog_tests/snprintf_btf.c:30:9: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result[-Wunused-result] Also it seems like a good idea to check the return value anyways to ensure ping exists even if its seems unlikely. Fixes: 076a95f5aff2c ("selftests/bpf: Add bpf_snprintf_btf helper tests") Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/160141006897.25201.12095049414156293265.stgit@john-Precision-5820-Tower
2020-09-29selftests: Add selftest for disallowing modify_return attachment to freplaceToke Høiland-Jørgensen3-1/+71
This adds a selftest that ensures that modify_return tracing programs cannot be attached to freplace programs. The security_ prefix is added to the freplace program because that would otherwise let it pass the check for modify_return. Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29selftests/bpf: Adding test for arg dereference in extension traceJiri Olsa3-0/+154
Adding test that setup following program: SEC("classifier/test_pkt_md_access") int test_pkt_md_access(struct __sk_buff *skb) with its extension: SEC("freplace/test_pkt_md_access") int test_pkt_md_access_new(struct __sk_buff *skb) and tracing that extension with: SEC("fentry/test_pkt_md_access_new") int BPF_PROG(fentry, struct sk_buff *skb) The test verifies that the tracing program can dereference skb argument properly. Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29selftests: Add test for multiple attachments of freplace programToke Høiland-Jørgensen2-32/+139
This adds a selftest for attaching an freplace program to multiple targets simultaneously. Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29selftests/bpf: Test BTF's handling of endiannessAndrii Nakryiko1-0/+101
Add selftests juggling endianness back and forth to validate BTF's handling of endianness convertions internally. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29selftests/bpf: Move and extend ASSERT_xxx() testing macrosAndrii Nakryiko2-34/+63
Move existing ASSERT_xxx() macros out of btf_write selftest into test_progs.h to use across all selftests. Also expand a set of macros for typical cases. Now there are the following macros: - ASSERT_EQ() -- check for equality of two integers; - ASSERT_STREQ() -- check for equality of two C strings; - ASSERT_OK() -- check for successful (zero) return result; - ASSERT_ERR() -- check for unsuccessful (non-zero) return result; - ASSERT_NULL() -- check for NULL pointer; - ASSERT_OK_PTR() -- check for a valid pointer; - ASSERT_ERR_PTR() -- check for NULL or negative error encoded in a pointer. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29selftests: Make sure all 'skel' variables are declared staticToke Høiland-Jørgensen2-2/+2
If programs in prog_tests using skeletons declare the 'skel' variable as global but not static, that will lead to linker errors on the final link of the prog_tests binary due to duplicate symbols. Fix a few instances of this. Fixes: b18c1f0aa477 ("bpf: selftest: Adapt sock_fields test to use skel and global variables") Fixes: 9a856cae2217 ("bpf: selftest: Add test_btf_skc_cls_ingress") Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29selftests/bpf_iter: Don't fail test due to missing __builtin_btf_type_idToke Høiland-Jørgensen1-3/+9
The new test for task iteration in bpf_iter checks (in do_btf_read()) if it should be skipped due to missing __builtin_btf_type_id. However, this 'skip' verdict is not propagated to the caller, so the parent test will still fail. Fix this by also skipping the rest of the parent test if the skip condition was reached. Fixes: b72091bd4ee4 ("selftests/bpf: Add test for bpf_seq_printf_btf helper") Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Reviewed-by: Alan Maguire <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-29selftests/bpf: Ensure snprintf_btf/bpf_iter tests compatibility with old ↵Alan Maguire3-1/+51
vmlinux.h Andrii reports that bpf selftests relying on "struct btf_ptr" and BTF_F_* values will not build as vmlinux.h for older kernels will not include "struct btf_ptr" or the BTF_F_* enum values. Undefine and redefine them to work around this. Fixes: b72091bd4ee4 ("selftests/bpf: Add test for bpf_seq_printf_btf helper") Fixes: 076a95f5aff2 ("selftests/bpf: Add bpf_snprintf_btf helper tests") Reported-by: Andrii Nakryiko <[email protected]> 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]
2020-09-29selftests/bpf: Fix unused-result warning in snprintf_btf.cAlan Maguire1-1/+1
Daniel reports: + system("ping -c 1 127.0.0.1 > /dev/null"); This generates the following new warning when compiling BPF selftests: [...] EXT-OBJ [test_progs] cgroup_helpers.o EXT-OBJ [test_progs] trace_helpers.o EXT-OBJ [test_progs] network_helpers.o EXT-OBJ [test_progs] testing_helpers.o TEST-OBJ [test_progs] snprintf_btf.test.o /root/bpf-next/tools/testing/selftests/bpf/prog_tests/snprintf_btf.c: In function ‘test_snprintf_btf’: /root/bpf-next/tools/testing/selftests/bpf/prog_tests/snprintf_btf.c:30:2: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result [-Wunused-result] system("ping -c 1 127.0.0.1 > /dev/null"); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [...] Fixes: 076a95f5aff2 ("selftests/bpf: Add bpf_snprintf_btf helper tests") Reported-by: Daniel Borkmann <[email protected]> Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28bpf, selftests: Fix cast to smaller integer type 'int' warning in raw_tpJohn Fastabend1-1/+1
Fix warning in bpf selftests, progs/test_raw_tp_test_run.c:18:10: warning: cast to smaller integer type 'int' from 'struct task_struct *' [-Wpointer-to-int-cast] Change int type cast to long to fix. Discovered with gcc-9 and llvm-11+ where llvm was recent main branch. Fixes: 09d8ad16885ee ("selftests/bpf: Add raw_tp_test_run") Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/160134424745.11199.13841922833336698133.stgit@john-Precision-5820-Tower
2020-09-28selftests/bpf: Test BTF writing APIsAndrii Nakryiko1-0/+278
Add selftests for BTF writer APIs. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: John Fastabend <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests/bpf: Add test for bpf_seq_printf_btf helperAlan Maguire2-0/+124
Add a test verifying iterating over tasks and displaying BTF representation of task_struct succeeds. Suggested-by: Alexei Starovoitov <[email protected]> Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests/bpf: Fix overflow tests to reflect iter size increaseAlan Maguire1-7/+7
bpf iter size increase to PAGE_SIZE << 3 means overflow tests assuming page size need to be bumped also. Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests/bpf: Add bpf_snprintf_btf helper testsAlan Maguire2-0/+309
Tests verifying snprintf()ing of various data structures, flags combinations using a tp_btf program. Tests are skipped if __builtin_btf_type_id is not available to retrieve BTF type ids. Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests: Remove fmod_ret from test_overheadToke Høiland-Jørgensen4-39/+1
The test_overhead prog_test included an fmod_ret program that attached to __set_task_comm() in the kernel. However, this function was never listed as allowed for return modification, so this only worked because of the verifier skipping tests when a trampoline already existed for the attach point. Now that the verifier checks have been fixed, remove fmod_ret from the test so it works again. Fixes: 4eaf0b5c5e04 ("selftest/bpf: Fmod_ret prog and implement test_overhead as part of bench") Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2020-09-28selftest: bpf: Test copying a sockmap and sockhashLorenz Bauer2-11/+30
Since we can now call map_update_elem(sockmap) from bpf_iter context it's possible to copy a sockmap or sockhash in the kernel. Add a selftest which exercises this. Signed-off-by: Lorenz Bauer <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests: bpf: Remove shared header from sockmap iter testLorenz Bauer3-24/+20
The shared header to define SOCKMAP_MAX_ENTRIES is a bit overkill. Dynamically allocate the sock_fd array based on bpf_map__max_entries instead. Suggested-by: Yonghong Song <[email protected]> Signed-off-by: Lorenz Bauer <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests: bpf: Add helper to compare socket cookiesLorenz Bauer1-14/+36
We compare socket cookies to ensure that insertion into a sockmap worked. Pull this out into a helper function for use in other tests. Signed-off-by: Lorenz Bauer <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests/bpf: Add raw_tp_test_runSong Liu2-0/+120
This test runs test_run for raw_tracepoint program. The test covers ctx input, retval output, and running on correct cpu. Signed-off-by: Song Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-28selftests: net: add a test for static UDP tunnel portsJakub Kicinski1-0/+58
Check UDP_TUNNEL_NIC_INFO_STATIC_IANA_VXLAN works as expected. Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-28selftests: net: add a test for shared UDP tunnel info tablesJakub Kicinski1-0/+109
Add a test run of checks validating the shared UDP tunnel port tables function as we expect. Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-28KVM: x86: do not attempt TSC synchronization on guest writesPaolo Bonzini2-0/+169
KVM special-cases writes to MSR_IA32_TSC so that all CPUs have the same base for the TSC. This logic is complicated, and we do not want it to have any effect once the VM is started. In particular, if any guest started to synchronize its TSCs with writes to MSR_IA32_TSC rather than MSR_IA32_TSC_ADJUST, the additional effect of kvm_write_tsc code would be uncharted territory. Therefore, this patch makes writes to MSR_IA32_TSC behave essentially the same as writes to MSR_IA32_TSC_ADJUST when they come from the guest. A new selftest (which passes both before and after the patch) checks the current semantics of writes to MSR_IA32_TSC and MSR_IA32_TSC_ADJUST originating from both the host and the guest. Upcoming work to remove the special side effects of host-initiated writes to MSR_IA32_TSC and MSR_IA32_TSC_ADJUST will be able to build onto this test, adjusting the host side to use the new APIs and achieve the same effect. Signed-off-by: Paolo Bonzini <[email protected]>
2020-09-28KVM: selftests: Add test for user space MSR handlingAlexander Graf3-0/+250
Now that we have the ability to handle MSRs from user space and also to select which ones we do want to prevent in-kernel KVM code from handling, let's add a selftest to show case and verify the API. Signed-off-by: Alexander Graf <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-09-28KVM: VMX: Rename RDTSCP secondary exec control name to insert "ENABLE"Sean Christopherson1-1/+1
Rename SECONDARY_EXEC_RDTSCP to SECONDARY_EXEC_ENABLE_RDTSCP in preparation for consolidating the logic for adjusting secondary exec controls based on the guest CPUID model. No functional change intended. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-09-26netdevsim: fix duplicated debugfs directoryJakub Kicinski1-1/+1
The "ethtool" debugfs directory holds per-netdev knobs, so move it from the device instance directory to the port directory. This fixes the following warning when creating multiple ports: debugfs: Directory 'ethtool' with parent 'netdevsim1' already present! Fixes: ff1f7c17fb20 ("netdevsim: add pause frame stats") Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-25netdevsim: add support for flash_update overwrite maskJacob Keller1-0/+18
The devlink interface recently gained support for a new "overwrite mask" parameter that allows specifying how various sub-sections of a flash component are modified when updating. Add support for this to netdevsim, to enable easily testing the interface. Make the allowed overwrite mask values controllable via a debugfs parameter. This enables testing a flow where the driver rejects an unsupportable overwrite mask. Signed-off-by: Jacob Keller <[email protected]> Reviewed-by: Jakub Kicinski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-25devlink: convert flash_update to use params structureJacob Keller1-0/+3
The devlink core recently gained support for checking whether the driver supports a flash_update parameter, via `supported_flash_update_params`. However, parameters are specified as function arguments. Adding a new parameter still requires modifying the signature of the .flash_update callback in all drivers. Convert the .flash_update function to take a new `struct devlink_flash_update_params` instead. By using this structure, and the `supported_flash_update_params` bit field, a new parameter to flash_update can be added without requiring modification to existing drivers. As before, all parameters except file_name will require driver opt-in. Because file_name is a necessary field to for the flash_update to make sense, no "SUPPORTED" bitflag is provided and it is always considered valid. All future additional parameters will require a new bit in the supported_flash_update_params bitfield. Signed-off-by: Jacob Keller <[email protected]> Reviewed-by: Jakub Kicinski <[email protected]> Cc: Jiri Pirko <[email protected]> Cc: Jakub Kicinski <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Michael Chan <[email protected]> Cc: Bin Luo <[email protected]> Cc: Saeed Mahameed <[email protected]> Cc: Leon Romanovsky <[email protected]> Cc: Ido Schimmel <[email protected]> Cc: Danielle Ratson <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-25Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-1/+1
Pull more kvm fixes from Paolo Bonzini: "Five small fixes. The nested migration bug will be fixed with a better API in 5.10 or 5.11, for now this is a fix that works with existing userspace but keeps the current ugly API" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SVM: Add a dedicated INVD intercept routine KVM: x86: Reset MMU context if guest toggles CR4.SMAP or CR4.PKE KVM: x86: fix MSR_IA32_TSC read for nested migration selftests: kvm: Fix assert failure in single-step test KVM: x86: VMX: Make smaller physical guest address space support user-configurable
2020-09-25bpf: Add AND verifier test case where 32bit and 64bit bounds differJohn Fastabend1-0/+16
If we AND two values together that are known in the 32bit subregs, but not known in the 64bit registers we rely on the tnum value to report the 32bit subreg is known. And do not use mark_reg_known() directly from scalar32_min_max_and() Add an AND test to cover the case with known 32bit subreg, but unknown 64bit reg. Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2020-09-25bpf: selftest: Add test_btf_skc_cls_ingressMartin KaFai Lau3-0/+413
This patch attaches a classifier prog to the ingress filter. It exercises the following helpers with different socket pointer types in different logical branches: 1. bpf_sk_release() 2. bpf_sk_assign() 3. bpf_skc_to_tcp_request_sock(), bpf_skc_to_tcp_sock() 4. bpf_tcp_gen_syncookie, bpf_tcp_check_syncookie Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-25bpf: selftest: Remove enum tcp_ca_state from bpf_tcp_helpers.hMartin KaFai Lau3-8/+4
The enum tcp_ca_state is available in <linux/tcp.h>. Remove it from the bpf_tcp_helpers.h to avoid conflict when the bpf prog needs to include both both <linux/tcp.h> and bpf_tcp_helpers.h. Modify the bpf_cubic.c and bpf_dctcp.c to use <linux/tcp.h> instead. The <linux/stddef.h> is needed by <linux/tcp.h>. Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-25bpf: selftest: Use bpf_skc_to_tcp_sock() in the sock_fields testMartin KaFai Lau2-9/+55
This test uses bpf_skc_to_tcp_sock() to get a kernel tcp_sock ptr "ktp". Access the ktp->lsndtime and also pass ktp to bpf_sk_storage_get(). It also exercises the bpf_sk_cgroup_id() and bpf_sk_ancestor_cgroup_id() with the "ktp". To do that, a parent cgroup and a child cgroup are created. The bpf prog is attached to the child cgroup. Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-25bpf: selftest: Use network_helpers in the sock_fields testMartin KaFai Lau1-79/+9
This patch uses start_server() and connect_to_fd() from network_helpers.h to remove the network testing boiler plate codes. epoll is no longer needed also since the timeout has already been taken care of also. Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-25bpf: selftest: Adapt sock_fields test to use skel and global variablesMartin KaFai Lau2-305/+229
skel is used. Global variables are used to store the result from bpf prog. addr_map, sock_result_map, and tcp_sock_result_map are gone. Instead, global variables listen_tp, srv_sa6, cli_tp,, srv_tp, listen_sk, srv_sk, and cli_sk are added. Because of that, bpf_addr_array_idx and bpf_result_array_idx are also no longer needed. CHECK() macro from test_progs.h is reused and bail as soon as a CHECK failure. shutdown() is used to ensure the previous data-ack is received. The bytes_acked, bytes_received, and the pkt_out_cnt checks are using "<" to accommodate the final ack may not have been received/sent. It is enough since it is not the focus of this test. The sk local storage is all initialized to 0xeB9F now, so the check_sk_pkt_out_cnt() always checks with the 0xeB9F base. It is to keep things simple. The next patch will reuse helpers from network_helpers.h to simplify things further. Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-25bpf: selftest: Move sock_fields test into test_progsMartin KaFai Lau4-6/+3
This is a mechanical change to 1. move test_sock_fields.c to prog_tests/sock_fields.c 2. rename progs/test_sock_fields_kern.c to progs/test_sock_fields.c Minimal change is made to the code itself. Next patch will make changes to use new ways of writing test, e.g. use skel and global variables. Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-25bpf: selftest: Add ref_tracking verifier test for bpf_skc castingMartin KaFai Lau1-0/+47
The patch tests for: 1. bpf_sk_release() can be called on a tcp_sock btf_id ptr. 2. Ensure the tcp_sock btf_id pointer cannot be used after bpf_sk_release(). Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Lorenz Bauer <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-09-25rseq/selftests: Test MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQPeter Oskolkov2-1/+224
Based on Google-internal RSEQ work done by Paul Turner and Andrew Hunter. This patch adds a selftest for MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ. The test quite often fails without the previous patch in this patchset, but consistently passes with it. Signed-off-by: Peter Oskolkov <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Mathieu Desnoyers <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
2020-09-25rseq/selftests,x86_64: Add rseq_offset_deref_addv()Peter Oskolkov1-0/+57
This patch adds rseq_offset_deref_addv() function to tools/testing/selftests/rseq/rseq-x86.h, to be used in a selftest in the next patch in the patchset. Once an architecture adds support for this function they should define "RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV". Signed-off-by: Peter Oskolkov <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Mathieu Desnoyers <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
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