summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/bpf/prog_tests
AgeCommit message (Collapse)AuthorFilesLines
2024-12-17selftests/bpf: Migrate test_xdp_meta.sh into xdp_context_test_run.cBastien Curutchet1-0/+87
test_xdp_meta.sh can't be used by the BPF CI. Migrate test_xdp_meta.sh in a new test case in xdp_context_test_run.c. It uses the same BPF programs located in progs/test_xdp_meta.c and the same network topology. Remove test_xdp_meta.sh and its Makefile entry. Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20241213-xdp_meta-v2-2-634582725b90@bootlin.com
2024-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfAlexei Starovoitov3-3/+115
Cross-merge bpf fixes after downstream PR. No conflicts. Adjacent changes in: Auto-merging include/linux/bpf.h Auto-merging include/linux/bpf_verifier.h Auto-merging kernel/bpf/btf.c Auto-merging kernel/bpf/verifier.c Auto-merging kernel/trace/bpf_trace.c Auto-merging tools/testing/selftests/bpf/progs/test_tp_btf_nullable.c Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-14selftests/bpf: Add tests for raw_tp NULL argsKumar Kartikeya Dwivedi1-0/+3
Add tests to ensure that arguments are correctly marked based on their specified positions, and whether they get marked correctly as maybe null. For modules, all tracepoint parameters should be marked PTR_MAYBE_NULL by default. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241213221929.3495062-4-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-14selftests/bpf: Add tests for fd_array_cntAnton Protopopov1-0/+441
Add a new set of tests to test the new field in PROG_LOAD-related part of bpf_attr: fd_array_cnt. Add the following test cases: * fd_array_cnt/no-fd-array: program is loaded in a normal way, without any fd_array present * fd_array_cnt/fd-array-ok: pass two extra non-used maps, check that they're bound to the program * fd_array_cnt/fd-array-dup-input: pass a few extra maps, only two of which are unique * fd_array_cnt/fd-array-ref-maps-in-array: pass a map in fd_array which is also referenced from within the program * fd_array_cnt/fd-array-trash-input: pass array with some trash * fd_array_cnt/fd-array-2big: pass too large array All the tests above are using the bpf(2) syscall directly, no libbpf involved. Signed-off-by: Anton Protopopov <aspsk@isovalent.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241213130934.1087929-7-aspsk@isovalent.com
2024-12-12selftests/bpf: extend changes_pkt_data with cases w/o subprogramsEduard Zingerman1-12/+43
Extend changes_pkt_data tests with test cases freplacing the main program that does not have subprograms. Try four combinations when both main program and replacement do and do not change packet data. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20241212070711.427443-2-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-10selftests/bpf: freplace tests for tracking of changes_packet_dataEduard Zingerman1-0/+76
Try different combinations of global functions replacement: - replace function that changes packet data with one that doesn't; - replace function that changes packet data with one that does; - replace function that doesn't change packet data with one that does; - replace function that doesn't change packet data with one that doesn't; Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20241210041100.1898468-7-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-10selftests/bpf: Extend test for sockmap update with sameMichal Luczaj1-3/+5
Verify that the sockmap link was not severed, and socket's entry is indeed removed from the map when the corresponding descriptor gets closed. Signed-off-by: Michal Luczaj <mhal@rbox.co> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20241202-sockmap-replace-v1-2-1e88579e7bd5@rbox.co
2024-12-10selftests/bpf: Fix fill_link_info selftest on powerpcSaket Kumar Bhaskar1-0/+4
With CONFIG_KPROBES_ON_FTRACE enabled on powerpc, ftrace_location_range returns ftrace location for bpf_fentry_test1 at offset of 4 bytes from function entry. This is because branch to _mcount function is at offset of 4 bytes in function profile sequence. To fix this, add entry_offset of 4 bytes while verifying the address for kprobe entry address of bpf_fentry_test1 in verify_perf_link_info in selftest, when CONFIG_KPROBES_ON_FTRACE is enabled. Disassemble of bpf_fentry_test1: c000000000e4b080 <bpf_fentry_test1>: c000000000e4b080: a6 02 08 7c mflr r0 c000000000e4b084: b9 e2 22 4b bl c00000000007933c <_mcount> c000000000e4b088: 01 00 63 38 addi r3,r3,1 c000000000e4b08c: b4 07 63 7c extsw r3,r3 c000000000e4b090: 20 00 80 4e blr When CONFIG_PPC_FTRACE_OUT_OF_LINE [1] is enabled, these function profile sequence is moved out of line with an unconditional branch at offset 0. So, the test works without altering the offset for 'CONFIG_KPROBES_ON_FTRACE && CONFIG_PPC_FTRACE_OUT_OF_LINE' case. Disassemble of bpf_fentry_test1: c000000000f95190 <bpf_fentry_test1>: c000000000f95190: 00 00 00 60 nop c000000000f95194: 01 00 63 38 addi r3,r3,1 c000000000f95198: b4 07 63 7c extsw r3,r3 c000000000f9519c: 20 00 80 4e blr [1] https://lore.kernel.org/all/20241030070850.1361304-13-hbathini@linux.ibm.com/ Fixes: 23cf7aa539dc ("selftests/bpf: Add selftest for fill_link_info") Signed-off-by: Saket Kumar Bhaskar <skb99@linux.ibm.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241209065720.234344-1-skb99@linux.ibm.com
2024-12-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfAlexei Starovoitov3-19/+79
Cross-merge bpf fixes after downstream PR. Trivial conflict: tools/testing/selftests/bpf/prog_tests/verifier.c Adjacent changes in: Auto-merging kernel/bpf/verifier.c Auto-merging samples/bpf/Makefile Auto-merging tools/testing/selftests/bpf/.gitignore Auto-merging tools/testing/selftests/bpf/Makefile Auto-merging tools/testing/selftests/bpf/prog_tests/verifier.c Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-06selftests/bpf: Consolidate kernel modules into common directoryToke Høiland-Jørgensen1-1/+1
The selftests build four kernel modules which use copy-pasted Makefile targets. This is a bit messy, and doesn't scale so well when we add more modules, so let's consolidate these rules into a single rule generated for each module name, and move the module sources into a single directory. To avoid parallel builds of the different modules stepping on each other's toes during the 'modpost' phase of the Kbuild 'make modules', the module files should really be a grouped target. However, make only added explicit support for grouped targets in version 4.3, which is newer than the minimum version supported by the kernel. However, make implicitly treats pattern matching rules with multiple targets as a grouped target, so we can work around this by turning the rule into a pattern matching target. We do this by replacing '.ko' with '%ko' in the targets with subst(). Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Viktor Malik <vmalik@redhat.com> Link: https://lore.kernel.org/bpf/20241204-bpf-selftests-mod-compile-v5-1-b96231134a49@redhat.com
2024-12-04selftests/bpf: Introduce __caps_unpriv annotation for testsEduard Zingerman1-18/+1
Add a __caps_unpriv annotation so that tests requiring specific capabilities while dropping the rest can conveniently specify them during selftest declaration instead of munging with capabilities at runtime from the testing binary. While at it, let us convert test_verifier_mtu to use this new support instead. Since we do not want to include linux/capability.h, we only defined the four main capabilities BPF subsystem deals with in bpf_misc.h for use in tests. If the user passes a CAP_SYS_NICE or anything else that's not defined in the header, capability parsing code will return a warning. Also reject strtol returning 0. CAP_CHOWN = 0 but we'll never need to use it, and strtol doesn't errno on failed conversion. Fail the test in such a case. The original diff for this idea is available at link [0]. [0]: https://lore.kernel.org/bpf/a1e48f5d9ae133e19adc6adf27e19d585e06bab4.camel@gmail.com Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> [ Kartikeya: rebase on bpf-next, add warn to parse_caps, convert test_verifier_mtu ] Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241204044757.1483141-4-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-04selftests/bpf: Add IRQ save/restore testsKumar Kartikeya Dwivedi1-0/+2
Include tests that check for rejection in erroneous cases, like unbalanced IRQ-disabled counts, within and across subprogs, invalid IRQ flag state or input to kfuncs, behavior upon overwriting IRQ saved state on stack, interaction with sleepable kfuncs/helpers, global functions, and out of order restore. Include some success scenarios as well to demonstrate usage. #128/1 irq/irq_save_bad_arg:OK #128/2 irq/irq_restore_bad_arg:OK #128/3 irq/irq_restore_missing_2:OK #128/4 irq/irq_restore_missing_3:OK #128/5 irq/irq_restore_missing_3_minus_2:OK #128/6 irq/irq_restore_missing_1_subprog:OK #128/7 irq/irq_restore_missing_2_subprog:OK #128/8 irq/irq_restore_missing_3_subprog:OK #128/9 irq/irq_restore_missing_3_minus_2_subprog:OK #128/10 irq/irq_balance:OK #128/11 irq/irq_balance_n:OK #128/12 irq/irq_balance_subprog:OK #128/13 irq/irq_global_subprog:OK #128/14 irq/irq_restore_ooo:OK #128/15 irq/irq_restore_ooo_3:OK #128/16 irq/irq_restore_3_subprog:OK #128/17 irq/irq_restore_4_subprog:OK #128/18 irq/irq_restore_ooo_3_subprog:OK #128/19 irq/irq_restore_invalid:OK #128/20 irq/irq_save_invalid:OK #128/21 irq/irq_restore_iter:OK #128/22 irq/irq_save_iter:OK #128/23 irq/irq_flag_overwrite:OK #128/24 irq/irq_flag_overwrite_partial:OK #128/25 irq/irq_ooo_refs_array:OK #128/26 irq/irq_sleepable_helper:OK #128/27 irq/irq_sleepable_kfunc:OK #128 irq:OK Summary: 1/27 PASSED, 0 SKIPPED, 0 FAILED Acked-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241204030400.208005-8-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: ensure proper root namespace cleanup when test failAlexis Lothoré (eBPF Foundation)1-5/+11
serial_test_flow_dissector_namespace manipulates both the root net namespace and a dedicated non-root net namespace. If for some reason a program attach on root namespace succeeds while it was expected to fail, the unexpected program will remain attached to the root namespace, possibly affecting other runs or even other tests in the same run. Fix undesired test failure side effect by explicitly detaching programs on failing tests expecting attach to fail. As a side effect of this change, do not test errno value if the tested operation do not fail. Fixes: 284ed00a59dd ("selftests/bpf: migrate flow_dissector namespace exclusivity test") Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://lore.kernel.org/r/20241128-small_flow_test_fix-v1-1-c12d45c98c59@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: add cgroup skb direct packet access testMahe Tardy1-0/+28
This verifies that programs of BPF_PROG_TYPE_CGROUP_SKB can access skb->data_end with direct packet access when being run with BPF_PROG_TEST_RUN. Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com> Link: https://lore.kernel.org/r/20241125152603.375898-2-mahe.tardy@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: migrate bpf flow dissectors tests to test_progsAlexis Lothoré (eBPF Foundation)1-0/+792
test_flow_dissector.sh loads flow_dissector program and subprograms, creates and configured relevant tunnels and interfaces, and ensure that the bpf dissection is actually performed correctly. Similar tests exist in test_progs (thanks to flow_dissector.c) and run the same programs, but those are only executed with BPF_PROG_RUN: those tests are then missing some coverage (eg: coverage for flow keys manipulated when the configured flower uses a port range, which has a dedicated test in test_flow_dissector.sh) Convert test_flow_dissector.sh into test_progs so that the corresponding tests are also run in CI. Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-13-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: use the same udp and tcp headers in tests under test_progsAlexis Lothoré (eBPF Foundation)5-5/+5
Trying to add udp-dedicated helpers in network_helpers involves including some udp header, which makes multiple test_progs tests build fail: In file included from ./progs/test_cls_redirect.h:13, from [...]/prog_tests/cls_redirect.c:15: [...]/usr/include/linux/udp.h:23:8: error: redefinition of ‘struct udphdr’ 23 | struct udphdr { | ^~~~~~ In file included from ./network_helpers.h:17, from [...]/prog_tests/cls_redirect.c:13: [...]/usr/include/netinet/udp.h:55:8: note: originally defined here 55 | struct udphdr | ^~~~~~ This error is due to struct udphdr being defined in both <linux/udp.h> and <netinet/udp.h>. Use only <netinet/udp.h> in every test. While at it, perform the same for tcp.h. For some tests, the change needs to be done in the eBPF program part as well, because of some headers sharing between both sides. Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-11-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: move ip checksum helper to network helpersAlexis Lothoré (eBPF Foundation)1-18/+1
xdp_metadata test has a small helper computing ipv4 checksums to allow manually building packets. Move this helper to network_helpers to share it with other tests. Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-9-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: migrate flow_dissector namespace exclusivity testAlexis Lothoré (eBPF Foundation)1-0/+62
Commit a11c397c43d5 ("bpf/flow_dissector: add mode to enforce global BPF flow dissector") is currently tested in test_flow_dissector.sh, which is not part of test_progs. Add the corresponding test to flow_dissector.c, which is part of test_progs. The new test reproduces the behavior implemented in its shell script counterpart: - attach a flow dissector program to the root net namespace, ensure that we can not attach another flow dissector in any non-root net namespace - attach a flow dissector program to a non-root net namespace, ensure that we can not attach another flow dissector in root namespace Since the new test is performing operations in the root net namespace, make sure to set it as a "serial" test to make sure not to conflict with any other test. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-7-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: add gre packets testing to flow_dissectorAlexis Lothoré (eBPF Foundation)1-0/+76
The bpf_flow program is able to handle GRE headers in IP packets. Add a few test data input simulating those GRE packets, with 2 different cases: - parse GRE and the encapsulated packet - parse GRE only Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-6-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: expose all subtests from flow_dissectorAlexis Lothoré (eBPF Foundation)1-3/+17
The flow_dissector test integrated in test_progs actually runs a wide matrix of tests over different packets types and bpf programs modes, but exposes only 3 main tests, preventing tests users from running specific subtests with a specific input only. Expose all subtests executed by flow_dissector by using test__start_subtest(). Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-5-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: re-split main function into dedicated testsAlexis Lothoré (eBPF Foundation)1-35/+73
The flow_dissector runs plenty of tests over diffent kind of packets, grouped into three categories: skb mode, non-skb mode with direct attach, and non-skb with indirect attach. Re-split the main function into dedicated tests. Each test now must have its own setup/teardown, but for the advantage of being able to run them separately. While at it, make sure that tests attaching the bpf programs are run in a dedicated ns. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-4-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: replace CHECK calls with ASSERT macros in flow_dissector testAlexis Lothoré (eBPF Foundation)1-20/+21
The flow dissector test currently relies on generic CHECK macros to perform tests. Update those to newer, more-specific ASSERT macros. This update allows to get rid of the global duration variable, which was needed by the CHECK macros Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-3-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-12-02selftests/bpf: use ASSERT_MEMEQ to compare bpf flow keysAlexis Lothoré (eBPF Foundation)1-30/+6
The flow_dissector program currently compares flow keys returned by bpf program with the expected one thanks to a custom macro using memcmp. Use the new ASSERT_MEMEQ macro to perform this comparision. This update also allows to get rid of the unused bpf_test_run_opts variable in run_tests_skb_less (it was only used by the CHECK macro for its duration field) Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Link: https://lore.kernel.org/r/20241120-flow_dissector-v3-2-45b46494f937@bootlin.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-26selftests/bpf: Check for PREEMPTION instead of PREEMPTSebastian Andrzej Siewior1-1/+1
CONFIG_PREEMPT is a preemtion model the so called "Low-Latency Desktop". A different preemption model is PREEMPT_RT the so called "Real-Time". Both implement preemption in kernel and set CONFIG_PREEMPTION. There is also the so called "LAZY PREEMPT" which the "Scheduler controlled preemption model". Here we have also preemption in the kernel the rules are slightly different. Therefore the testsuite should not check for CONFIG_PREEMPT (as one model) but for CONFIG_PREEMPTION to figure out if preemption in the kernel is possible. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20241119161819.qvEcs-n_@linutronix.de Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-26selftest/bpf: Add test for vsock removal from sockmap on close()Michal Luczaj1-0/+31
Make sure the proto::close callback gets invoked on vsock release. Signed-off-by: Michal Luczaj <mhal@rbox.co> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20241118-vsock-bpf-poll-close-v1-4-f1b9669cacdc@rbox.co Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com>
2024-11-26selftest/bpf: Add test for af_vsock poll()Michal Luczaj1-0/+46
Verify that vsock's poll() notices when sk_psock::ingress_msg isn't empty. Signed-off-by: Michal Luczaj <mhal@rbox.co> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20241118-vsock-bpf-poll-close-v1-2-f1b9669cacdc@rbox.co Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com>
2024-11-21Merge tag 'net-next-6.13' of ↵Linus Torvalds7-155/+893
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "The most significant set of changes is the per netns RTNL. The new behavior is disabled by default, regression risk should be contained. Notably the new config knob PTP_1588_CLOCK_VMCLOCK will inherit its default value from PTP_1588_CLOCK_KVM, as the first is intended to be a more reliable replacement for the latter. Core: - Started a very large, in-progress, effort to make the RTNL lock scope per network-namespace, thus reducing the lock contention significantly in the containerized use-case, comprising: - RCU-ified some relevant slices of the FIB control path - introduce basic per netns locking helpers - namespacified the IPv4 address hash table - remove rtnl_register{,_module}() in favour of rtnl_register_many() - refactor rtnl_{new,del,set}link() moving as much validation as possible out of RTNL lock - convert all phonet doit() and dumpit() handlers to RCU - convert IPv4 addresses manipulation to per-netns RTNL - convert virtual interface creation to per-netns RTNL the per-netns lock infrastructure is guarded by the CONFIG_DEBUG_NET_SMALL_RTNL knob, disabled by default ad interim. - Introduce NAPI suspension, to efficiently switching between busy polling (NAPI processing suspended) and normal processing. - Migrate the IPv4 routing input, output and control path from direct ToS usage to DSCP macros. This is a work in progress to make ECN handling consistent and reliable. - Add drop reasons support to the IPv4 rotue input path, allowing better introspection in case of packets drop. - Make FIB seqnum lockless, dropping RTNL protection for read access. - Make inet{,v6} addresses hashing less predicable. - Allow providing timestamp OPT_ID via cmsg, to correlate TX packets and timestamps Things we sprinkled into general kernel code: - Add small file operations for debugfs, to reduce the struct ops size. - Refactoring and optimization for the implementation of page_frag API, This is a preparatory work to consolidate the page_frag implementation. Netfilter: - Optimize set element transactions to reduce memory consumption - Extended netlink error reporting for attribute parser failure. - Make legacy xtables configs user selectable, giving users the option to configure iptables without enabling any other config. - Address a lot of false-positive RCU issues, pointed by recent CI improvements. BPF: - Put xsk sockets on a struct diet and add various cleanups. Overall, this helps to bump performance by 12% for some workloads. - Extend BPF selftests to increase coverage of XDP features in combination with BPF cpumap. - Optimize and homogenize bpf_csum_diff helper for all archs and also add a batch of new BPF selftests for it. - Extend netkit with an option to delegate skb->{mark,priority} scrubbing to its BPF program. - Make the bpf_get_netns_cookie() helper available also to tc(x) BPF programs. Protocols: - Introduces 4-tuple hash for connected udp sockets, speeding-up significantly connected sockets lookup. - Add a fastpath for some TCP timers that usually expires after close, the socket lock contention. - Add inbound and outbound xfrm state caches to speed up state lookups. - Avoid sending MPTCP advertisements on stale subflows, reducing risks on loosing them. - Make neighbours table flushing more scalable, maintaining per device neigh lists. Driver API: - Introduce a unified interface to configure transmission H/W shaping, and expose it to user-space via generic-netlink. - Add support for per-NAPI config via netlink. This makes napi configuration persistent across queues removal and re-creation. Requires driver updates, currently supported drivers are: nVidia/Mellanox mlx4 and mlx5, Broadcom brcm and Intel ice. - Add ethtool support for writing SFP / PHY firmware blocks. - Track RSS context allocation from ethtool core. - Implement support for mirroring to DSA CPU port, via TC mirror offload. - Consolidate FDB updates notification, to avoid duplicates on device-specific entries. - Expose DPLL clock quality level to the user-space. - Support master-slave PHY config via device tree. Tests and tooling: - forwarding: introduce deferred commands, to simplify the cleanup phase Drivers: - Updated several drivers - Amazon vNic, Google vNic, Microsoft vNic, Intel e1000e and Broadcom Tigon3 - to use netdev-genl to link the IRQs and queues to NAPI IDs, allowing busy polling and better introspection. - Ethernet high-speed NICs: - nVidia/Mellanox: - mlx5: - a large refactor to implement support for cross E-Switch scheduling - refactor H/W conter management to let it scale better - H/W GRO cleanups - Intel (100G, ice):: - add support for ethtool reset - implement support for per TX queue H/W shaping - AMD/Solarflare: - implement per device queue stats support - Broadcom (bnxt): - improve wildcard l4proto on IPv4/IPv6 ntuple rules - Marvell Octeon: - Add representor support for each Resource Virtualization Unit (RVU) device. - Hisilicon: - add support for the BMC Gigabit Ethernet - IBM (EMAC): - driver cleanup and modernization - Cisco (VIC): - raise the queues number limit to 256 - Ethernet virtual: - Google vNIC: - implement page pool support - macsec: - inherit lower device's features and TSO limits when offloading - virtio_net: - enable premapped mode by default - support for XDP socket(AF_XDP) zerocopy TX - wireguard: - set the TSO max size to be GSO_MAX_SIZE, to aggregate larger packets. - Ethernet NICs embedded and virtual: - Broadcom ASP: - enable software timestamping - Freescale: - add enetc4 PF driver - MediaTek: Airoha SoC: - implement BQL support - RealTek r8169: - enable TSO by default on r8168/r8125 - implement extended ethtool stats - Renesas AVB: - enable TX checksum offload - Synopsys (stmmac): - support header splitting for vlan tagged packets - move common code for DWMAC4 and DWXGMAC into a separate FPE module. - add dwmac driver support for T-HEAD TH1520 SoC - Synopsys (xpcs): - driver refactor and cleanup - TI: - icssg_prueth: add VLAN offload support - Xilinx emaclite: - add clock support - Ethernet switches: - Microchip: - implement support for the lan969x Ethernet switch family - add LAN9646 switch support to KSZ DSA driver - Ethernet PHYs: - Marvel: 88q2x: enable auto negotiation - Microchip: add support for LAN865X Rev B1 and LAN867X Rev C1/C2 - PTP: - Add support for the Amazon virtual clock device - Add PtP driver for s390 clocks - WiFi: - mac80211 - EHT 1024 aggregation size for transmissions - new operation to indicate that a new interface is to be added - support radio separation of multi-band devices - move wireless extension spy implementation to libiw - Broadcom: - brcmfmac: optional LPO clock support - Microchip: - add support for Atmel WILC3000 - Qualcomm (ath12k): - firmware coredump collection support - add debugfs support for a multitude of statistics - Qualcomm (ath5k): - Arcadyan ARV45XX AR2417 & Gigaset SX76[23] AR241[34]A support - Realtek: - rtw88: 8821au and 8812au USB adapters support - rtw89: add thermal protection - rtw89: fine tune BT-coexsitence to improve user experience - rtw89: firmware secure boot for WiFi 6 chip - Bluetooth - add Qualcomm WCN785x support for ids Foxconn 0xe0fc/0xe0f3 and 0x13d3:0x3623 - add Realtek RTL8852BE support for id Foxconn 0xe123 - add MediaTek MT7920 support for wireless module ids - btintel_pcie: add handshake between driver and firmware - btintel_pcie: add recovery mechanism - btnxpuart: add GPIO support to power save feature" * tag 'net-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1475 commits) mm: page_frag: fix a compile error when kernel is not compiled Documentation: tipc: fix formatting issue in tipc.rst selftests: nic_performance: Add selftest for performance of NIC driver selftests: nic_link_layer: Add selftest case for speed and duplex states selftests: nic_link_layer: Add link layer selftest for NIC driver bnxt_en: Add FW trace coredump segments to the coredump bnxt_en: Add a new ethtool -W dump flag bnxt_en: Add 2 parameters to bnxt_fill_coredump_seg_hdr() bnxt_en: Add functions to copy host context memory bnxt_en: Do not free FW log context memory bnxt_en: Manage the FW trace context memory bnxt_en: Allocate backing store memory for FW trace logs bnxt_en: Add a 'force' parameter to bnxt_free_ctx_mem() bnxt_en: Refactor bnxt_free_ctx_mem() bnxt_en: Add mem_valid bit to struct bnxt_ctx_mem_type bnxt_en: Update firmware interface spec to 1.10.3.85 selftests/bpf: Add some tests with sockmap SK_PASS bpf: fix recursive lock when verdict program return SK_PASS wireguard: device: support big tcp GSO wireguard: selftests: load nf_conntrack if not present ...
2024-11-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni1-0/+54
Merge in late fixes to prepare for the 6.13 net-next PR. Conflicts: include/linux/phy.h 41ffcd95015f net: phy: fix phylib's dual eee_enabled 721aa69e708b net: phy: convert eee_broken_modes to a linkmode bitmap https://lore.kernel.org/all/20241118135512.1039208b@canb.auug.org.au/ drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c 2160428bcb20 net: txgbe: fix null pointer to pcs 2160428bcb20 net: txgbe: remove GPIO interrupt controller Adjacent commits: include/linux/phy.h 41ffcd95015f net: phy: fix phylib's dual eee_enabled 516a5f11eb97 net: phy: respect cached advertising when re-enabling EEE Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-11-19selftests/bpf: Add some tests with sockmap SK_PASSJiayuan Chen1-0/+54
Add a new tests in sockmap_basic.c to test SK_PASS for sockmap Signed-off-by: Jiayuan Chen <mrpre@163.com> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20241118030910.36230-3-mrpre@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-15selftests/bpf: Set test path for token/obj_priv_implicit_token_envvarIhor Solodrai1-7/+12
token/obj_priv_implicit_token_envvar test may fail in an environment where the process executing tests can not write to the root path. Example: https://github.com/libbpf/libbpf/actions/runs/11844507007/job/33007897936 Change default path used by the test to /tmp/bpf-token-fs, and make it runtime configurable via an environment variable. Signed-off-by: Ihor Solodrai <ihor.solodrai@pm.me> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241115003853.864397-1-ihor.solodrai@pm.me
2024-11-13selftests/bpf: Add struct_ops prog private stack testsYonghong Song1-0/+106
Add three tests for struct_ops using private stack. ./test_progs -t struct_ops_private_stack #336/1 struct_ops_private_stack/private_stack:OK #336/2 struct_ops_private_stack/private_stack_fail:OK #336/3 struct_ops_private_stack/private_stack_recur:OK #336 struct_ops_private_stack:OK The following is a snippet of a struct_ops check_member() implementation: u32 moff = __btf_member_bit_offset(t, member) / 8; switch (moff) { case offsetof(struct bpf_testmod_ops3, test_1): prog->aux->priv_stack_requested = true; prog->aux->recursion_detected = test_1_recursion_detected; fallthrough; default: break; } return 0; The first test is with nested two different callback functions where the first prog has more than 512 byte stack size (including subprogs) with private stack enabled. The second test is a negative test where the second prog has more than 512 byte stack size without private stack enabled. The third test is the same callback function recursing itself. At run time, the jit trampoline recursion check kicks in to prevent the recursion. The recursion_detected() callback function is implemented by the bpf_testmod, the following message in dmesg bpf_testmod: oh no, recursing into test_1, recursion_misses 1 demonstrates the callback function is indeed triggered when recursion miss happens. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20241112163938.2225528-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-13selftests/bpf: Add tracing prog private stack testsYonghong Song1-0/+2
Some private stack tests are added including: - main prog only with stack size greater than BPF_PSTACK_MIN_SIZE. - main prog only with stack size smaller than BPF_PSTACK_MIN_SIZE. - prog with one subprog having MAX_BPF_STACK stack size and another subprog having non-zero small stack size. - prog with callback function. - prog with exception in main prog or subprog. - prog with async callback without nesting - prog with async callback with possible nesting Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20241112163927.2224750-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-13selftests/bpf: update send_signal to lower perf evemts frequencyEduard Zingerman1-1/+2
Similar to commit [1] sample perf events less often in test_send_signal_nmi(). This should reduce perf events throttling. [1] 7015843afcaf ("selftests/bpf: Fix send_signal test with nested CONFIG_PARAVIRT") Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20241112110906.3045278-5-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-13selftests/bpf: allow send_signal test to timeoutEduard Zingerman1-13/+19
The following invocation: $ t1=send_signal/send_signal_perf_thread_remote \ t2=send_signal/send_signal_nmi_thread_remote \ ./test_progs -t $t1,$t2 Leads to send_signal_nmi_thread_remote to be stuck on a line 180: /* wait for result */ err = read(pipe_c2p[0], buf, 1); In this test case: - perf event PERF_COUNT_HW_CPU_CYCLES is created for parent process; - BPF program is attached to perf event, and sends a signal to child process when event occurs; - parent program burns some CPU in busy loop and calls read() to get notification from child that it received a signal. The perf event is declared with .sample_period = 1. This forces perf to throttle events, and under some unclear conditions the event does not always occur while parent is in busy loop. After parent enters read() system call CPU cycles event won't be generated for parent anymore. Thus, if perf event had not occurred already the test is stuck. This commit updates the parent to wait for notification with a timeout, doing several iterations of busy loop + read_with_timeout(). Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20241112110906.3045278-4-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-13selftests/bpf: watchdog timer for test_progsEduard Zingerman2-6/+6
This commit provides a watchdog timer that sets a limit of how long a single sub-test could run: - if sub-test runs for 10 seconds, the name of the test is printed (currently the name of the test is printed only after it finishes); - if sub-test runs for 120 seconds, the running thread is terminated with SIGSEGV (to trigger crash_handler() and get a stack trace). Specifically: - the timer is armed on each call to run_one_test(); - re-armed at each call to test__start_subtest(); - is stopped when exiting run_one_test(). Default timeout could be overridden using '-w' or '--watchdog-timeout' options. Value 0 can be used to turn the timer off. Here is an example execution: $ ./ssh-exec.sh ./test_progs -w 5 -t \ send_signal/send_signal_perf_thread_remote,send_signal/send_signal_nmi_thread_remote WATCHDOG: test case send_signal/send_signal_nmi_thread_remote executes for 5 seconds, terminating with SIGSEGV Caught signal #11! Stack trace: ./test_progs(crash_handler+0x1f)[0x9049ef] /lib64/libc.so.6(+0x40d00)[0x7f1f1184fd00] /lib64/libc.so.6(read+0x4a)[0x7f1f1191cc4a] ./test_progs[0x720dd3] ./test_progs[0x71ef7a] ./test_progs(test_send_signal+0x1db)[0x71edeb] ./test_progs[0x9066c5] ./test_progs(main+0x5ed)[0x9054ad] /lib64/libc.so.6(+0x2a088)[0x7f1f11839088] /lib64/libc.so.6(__libc_start_main+0x8b)[0x7f1f1183914b] ./test_progs(_start+0x25)[0x527385] #292 send_signal:FAIL test_send_signal_common:PASS:reading pipe 0 nsec test_send_signal_common:PASS:reading pipe error: size 0 0 nsec test_send_signal_common:PASS:incorrect result 0 nsec test_send_signal_common:PASS:pipe_write 0 nsec test_send_signal_common:PASS:setpriority 0 nsec Timer is implemented using timer_{create,start} librt API. Internally librt uses pthreads for SIGEV_THREAD timers, so this change adds a background timer thread to the test process. Because of this a few checks in tests 'bpf_iter' and 'iters' need an update to account for an extra thread. For parallelized scenario the watchdog is also created for each worker fork. If one of the workers gets stuck, it would be terminated by a watchdog. In theory, this might lead to a scenario when all worker threads are exhausted, however this should not be a problem for server_main(), as it would exit with some of the tests not run. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20241112110906.3045278-2-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-11-11bpf: Drop special callback reference handlingKumar Kartikeya Dwivedi1-2/+2
Logic to prevent callbacks from acquiring new references for the program (i.e. leaving acquired references), and releasing caller references (i.e. those acquired in parent frames) was introduced in commit 9d9d00ac29d0 ("bpf: Fix reference state management for synchronous callbacks"). This was necessary because back then, the verifier simulated each callback once (that could potentially be executed N times, where N can be zero). This meant that callbacks that left lingering resources or cleared caller resources could do it more than once, operating on undefined state or leaking memory. With the fixes to callback verification in commit ab5cfac139ab ("bpf: verify callbacks as if they are called unknown number of times"), all of this extra logic is no longer necessary. Hence, drop it as part of this commit. Cc: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241109231430.2475236-3-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2024-11-11selftests/bpf: skip the timer_lockup test for single-CPU nodesViktor Malik1-0/+6
The timer_lockup test needs 2 CPUs to work, on single-CPU nodes it fails to set thread affinity to CPU 1 since it doesn't exist: # ./test_progs -t timer_lockup test_timer_lockup:PASS:timer_lockup__open_and_load 0 nsec test_timer_lockup:PASS:pthread_create thread1 0 nsec test_timer_lockup:PASS:pthread_create thread2 0 nsec timer_lockup_thread:PASS:cpu affinity 0 nsec timer_lockup_thread:FAIL:cpu affinity unexpected error: 22 (errno 0) test_timer_lockup:PASS: 0 nsec #406 timer_lockup:FAIL Skip the test if only 1 CPU is available. Signed-off-by: Viktor Malik <vmalik@redhat.com> Fixes: 50bd5a0c658d1 ("selftests/bpf: Add timer lockup selftest") Tested-by: Philo Lu <lulie@linux.alibaba.com> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241107115231.75200-1-vmalik@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2024-11-11selftests/bpf: Test the update operations for htab of mapsHou Tao1-1/+131
Add test cases to verify the following four update operations on htab of maps don't trigger lockdep warning: (1) add then delete (2) add, overwrite, then delete (3) add, then lookup_and_delete (4) add two elements, then lookup_and_delete_batch Test cases are added for pre-allocated and non-preallocated htab of maps respectively. Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20241106063542.357743-4-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2024-11-11selftests/bpf: Move ENOTSUPP from bpf_util.hHou Tao3-12/+0
Moving the definition of ENOTSUPP into bpf_util.h to remove the duplicated definitions in multiple files. Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20241106063542.357743-3-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2024-11-11selftests/bpf: Add threads to consumer testJiri Olsa1-18/+80
With recent uprobe fix [1] the sync time after unregistering uprobe is much longer and prolongs the consumer test which creates and destroys hundreds of uprobes. This change adds 16 threads (which fits the test logic) and speeds up the test. Before the change: # perf stat --null ./test_progs -t uprobe_multi_test/consumers #421/9 uprobe_multi_test/consumers:OK #421 uprobe_multi_test:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Performance counter stats for './test_progs -t uprobe_multi_test/consumers': 28.818778973 seconds time elapsed 0.745518000 seconds user 0.919186000 seconds sys After the change: # perf stat --null ./test_progs -t uprobe_multi_test/consumers 2>&1 #421/9 uprobe_multi_test/consumers:OK #421 uprobe_multi_test:OK Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED Performance counter stats for './test_progs -t uprobe_multi_test/consumers': 3.504790814 seconds time elapsed 0.012141000 seconds user 0.751760000 seconds sys [1] commit 87195a1ee332 ("uprobes: switch to RCU Tasks Trace flavor for better performance") Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-14-jolsa@kernel.org
2024-11-11selftests/bpf: Add uprobe sessions to consumer testJiri Olsa1-21/+49
Adding uprobe session consumers to the consumer test, so we get the session into the test mix. In addition scaling down the test to have just 1 uprobe and 1 uretprobe, otherwise the test time grows and is unsuitable for CI even with threads. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-13-jolsa@kernel.org
2024-11-11selftests/bpf: Add uprobe session single consumer testJiri Olsa1-0/+33
Testing that the session ret_handler bypass works on single uprobe with multiple consumers, each with different session ignore return value. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-12-jolsa@kernel.org
2024-11-11selftests/bpf: Add kprobe session verifier test for return valueJiri Olsa1-0/+2
Making sure kprobe.session program can return only [0,1] values. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-11-jolsa@kernel.org
2024-11-11selftests/bpf: Add uprobe session verifier test for return valueJiri Olsa1-0/+2
Making sure uprobe.session program can return only [0,1] values. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-10-jolsa@kernel.org
2024-11-11selftests/bpf: Add uprobe session recursive testJiri Olsa1-0/+57
Adding uprobe session test that verifies the cookie value is stored properly when single uprobe-ed function is executed recursively. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-9-jolsa@kernel.org
2024-11-11selftests/bpf: Add uprobe session cookie testJiri Olsa1-0/+31
Adding uprobe session test that verifies the cookie value get properly propagated from entry to return program. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-8-jolsa@kernel.org
2024-11-11selftests/bpf: Add uprobe session testJiri Olsa1-0/+47
Adding uprobe session test and testing that the entry program return value controls execution of the return probe program. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241108134544.480660-7-jolsa@kernel.org
2024-11-11selftests/bpf: Fix uprobe consumer test (again)Jiri Olsa1-6/+8
The new uprobe changes bring some new behaviour that we need to reflect in the consumer test. Now pending uprobe instance in the kernel can survive longer and thus might call uretprobe consumer callbacks in some situations in which, previously, such callback would be omitted. We now need to take that into account in uprobe-multi consumer tests. The idea being that uretprobe under test either stayed from before to after (uret_stays + test_bit) or uretprobe instance survived and we have uretprobe active in after (uret_survives + test_bit). uret_survives just states that uretprobe survives if there are *any* uretprobes both before and after (overlapping or not, doesn't matter) and uprobe was attached before. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20241107094337.3848210-1-jolsa@kernel.org
2024-11-06selftests/bpf: Drop netns helpers in mptcpGeliang Tang1-30/+12
New netns selftest helpers netns_new() and netns_free() has been added in network_helpers.c, let's use them in mptcp selftests too instead of using MPTCP's own helpers create_netns() and cleanup_netns(). Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://lore.kernel.org/r/c02fda3177b34f9e74a044833fda9761627f4d07.1730338692.git.tanggeliang@kylinos.cn Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2024-11-04selftests/bpf: Add tests for raw_tp null handlingKumar Kartikeya Dwivedi1-0/+25
Ensure that trusted PTR_TO_BTF_ID accesses perform PROBE_MEM handling in raw_tp program. Without the previous fix, this selftest crashes the kernel due to a NULL-pointer dereference. Also ensure that dead code elimination does not kick in for checks on the pointer. Reviewed-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241104171959.2938862-4-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-05-04 02:32:04 +0300