kernel.git/tools/testing/selftests/tc-testing, branch linux-5.12.y

tc-testing: fix list handling

2021-07-14T15:00:00Z

[ Upstream commit b4fd096cbb871340be837491fa1795864a48b2d9 ] python lists don't have an 'add' method, but 'append'. Fixes: 14e5175e9e04 ("tc-testing: introduce scapyPlugin for basic traffic") Signed-off-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

net/sched: fq_pie: re-factor fix for fq_pie endless loop

2021-06-03T07:09:25Z

commit 3a62fed2fd7b6fea96d720e779cafc30dfb3a22e upstream. the patch that fixed an endless loop in_fq_pie_init() was not considering that 65535 is a valid class id. The correct bugfix for this infinite loop is to change 'idx' to become an u32, like Colin proposed in the past [1]. Fix this as follows: - restore 65536 as maximum possible values of 'flows_cnt' - use u32 'idx' when iterating on 'q->flows' - fix the TDC selftest This reverts commit bb2f930d6dd708469a587dc9ed1efe1ef969c0bf. [1] https://lore.kernel.org/netdev/20210407163808.499027-1-colin.king@canonical.com/ CC: Colin Ian King CC: stable@vger.kernel.org Fixes: bb2f930d6dd7 ("net/sched: fix infinite loop in sch_fq_pie") Fixes: ec97ecf1ebe4 ("net: sched: add Flow Queue PIE packet scheduler") Signed-off-by: Davide Caratti Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

2021-02-16T21:14:06Z

Daniel Borkmann says: ==================== pull-request: bpf-next 2021-02-16 The following pull-request contains BPF updates for your *net-next* tree. There's a small merge conflict between 7eeba1706eba ("tcp: Add receive timestamp support for receive zerocopy.") from net-next tree and 9cacf81f8161 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE") from bpf-next tree. Resolve as follows: [...] lock_sock(sk); err = tcp_zerocopy_receive(sk, &zc, &tss); err = BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sk, level, optname, &zc, &len, err); release_sock(sk); [...] We've added 116 non-merge commits during the last 27 day(s) which contain a total of 156 files changed, 5662 insertions(+), 1489 deletions(-). The main changes are: 1) Adds support of pointers to types with known size among global function args to overcome the limit on max # of allowed args, from Dmitrii Banshchikov. 2) Add bpf_iter for task_vma which can be used to generate information similar to /proc/pid/maps, from Song Liu. 3) Enable bpf_{g,s}etsockopt() from all sock_addr related program hooks. Allow rewriting bind user ports from BPF side below the ip_unprivileged_port_start range, both from Stanislav Fomichev. 4) Prevent recursion on fentry/fexit & sleepable programs and allow map-in-map as well as per-cpu maps for the latter, from Alexei Starovoitov. 5) Add selftest script to run BPF CI locally. Also enable BPF ringbuffer for sleepable programs, both from KP Singh. 6) Extend verifier to enable variable offset read/write access to the BPF program stack, from Andrei Matei. 7) Improve tc & XDP MTU handling and add a new bpf_check_mtu() helper to query device MTU from programs, from Jesper Dangaard Brouer. 8) Allow bpf_get_socket_cookie() helper also be called from [sleepable] BPF tracing programs, from Florent Revest. 9) Extend x86 JIT to pad JMPs with NOPs for helping image to converge when otherwise too many passes are required, from Gary Lin. 10) Verifier fixes on atomics with BPF_FETCH as well as function-by-function verification both related to zero-extension handling, from Ilya Leoshkevich. 11) Better kernel build integration of resolve_btfids tool, from Jiri Olsa. 12) Batch of AF_XDP selftest cleanups and small performance improvement for libbpf's xsk map redirect for newer kernels, from Björn Töpel. 13) Follow-up BPF doc and verifier improvements around atomics with BPF_FETCH, from Brendan Jackman. 14) Permit zero-sized data sections e.g. if ELF .rodata section contains read-only data from local variables, from Yonghong Song. 15) veth driver skb bulk-allocation for ndo_xdp_xmit, from Lorenzo Bianconi. ==================== Signed-off-by: David S. Miller

selftests: tc-testing: u32: Add tests covering sample option

2021-02-08T23:18:57Z

Kernel's key folding basically consists of shifting away least significant zero bits in mask and masking the resulting value with (divisor - 1). Test for u32's 'sample' option to behave identical. Suggested-by: Jamal Hadi Salim Signed-off-by: Phil Sutter Signed-off-by: David S. Miller

tools: Factor Clang, LLC and LLVM utils definitions

2021-01-29T00:25:34Z

When dealing with BPF/BTF/pahole and DWARF v5 I wanted to build bpftool. While looking into the source code I found duplicate assignments in misc tools for the LLVM eco system, e.g. clang and llvm-objcopy. Move the Clang, LLC and/or LLVM utils definitions to tools/scripts/Makefile.include file and add missing includes where needed. Honestly, I was inspired by the commit c8a950d0d3b9 ("tools: Factor HOSTCC, HOSTLD, HOSTAR definitions"). I tested with bpftool and perf on Debian/testing AMD64 and LLVM/Clang v11.1.0-rc1. Build instructions: [ make and make-options ] MAKE="make V=1" MAKE_OPTS="HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1" MAKE_OPTS="$MAKE_OPTS PAHOLE=/opt/pahole/bin/pahole" [ clean-up ] $MAKE $MAKE_OPTS -C tools/ clean [ bpftool ] $MAKE $MAKE_OPTS -C tools/bpf/bpftool/ [ perf ] PYTHON=python3 $MAKE $MAKE_OPTS -C tools/perf/ I was careful with respecting the user's wish to override custom compiler, linker, GNU/binutils and/or LLVM utils settings. Signed-off-by: Sedat Dilek Signed-off-by: Daniel Borkmann Acked-by: Andrii Nakryiko Acked-by: Jiri Olsa # tools/build and tools/perf Link: https://lore.kernel.org/bpf/20210128015117.20515-1-sedat.dilek@gmail.com

tweewide: Fix most Shebang lines

2020-12-08T14:30:04Z

Change every shebang which does not need an argument to use /usr/bin/env. This is needed as not every distro has everything under /usr/bin, sometimes not even bash. Signed-off-by: Finn Behrens Signed-off-by: Masahiro Yamada

selftests: tc-testing: enable CONFIG_NET_SCH_RED as a module

2020-11-28T21:18:34Z

a proper kernel configuration for running kselftest can be obtained with: $ yes | make kselftest-merge enable compile support for the 'red' qdisc: otherwise, tdc kselftest fail when trying to run tdc test items contained in red.json. Signed-off-by: Davide Caratti Link: https://lore.kernel.org/r/cfa23f2d4f672401e6cebca3a321dd1901a9ff07.1606416464.git.dcaratti@redhat.com Signed-off-by: Jakub Kicinski

selftest: fix flower terse dump tests

2020-11-10T22:31:17Z

Iproute2 tc classifier terse dump has been accepted with modified syntax. Update the tests accordingly. Signed-off-by: Vlad Buslov Fixes: e7534fd42a99 ("selftests: implement flower classifier terse dump tests") Link: https://lore.kernel.org/r/20201107111928.453534-1-vlad@buslov.dev Signed-off-by: Jakub Kicinski

tc-testing: Add tdc to kselftests

2020-07-21T01:29:37Z

Add tdc to existing kselftest infrastructure so that it can be run with existing kselftests. TDC now generates objects in objdir/kselftest without cluttering main objdir, leaves source directory clean, and installs correctly in kselftest_install, properly adding itself to run_kselftest.sh script. Add tc-testing as a target of selftests/Makefile. Create tdc.sh to run tdc.py targets with correct arguments. To support single target from selftest/Makefile, combine tc-testing/bpf/Makefile and tc-testing/Makefile. Move action.c up a directory to tc-testing/. Tested with: make O=/tmp/{objdir} TARGETS="tc-testing" kselftest cd /tmp/{objdir} cd kselftest cd tc-testing ./tdc.sh make -C tools/testing/selftests/ TARGETS=tc-testing run_tests make TARGETS="tc-testing" kselftest cd tools/testing/selftests ./kselftest_install.sh /tmp/exampledir My VM doesn't run all the kselftests so I commented out all except my target and net/pmtu.sh then: cd /tmp/exampledir && ./run_kselftest.sh Co-developed-by: Davide Caratti Signed-off-by: Davide Caratti Signed-off-by: Briana Oursler Signed-off-by: David S. Miller

tc-testing: avoid action cookies with odd length.

2020-06-25T23:10:45Z

Update odd length cookie hexstrings in csum.json, tunnel_key.json and bpf.json to be even length to comply with check enforced in commit 0149dabf2a1b ("tc: m_actions: check cookie hexstring len") in iproute2. Signed-off-by: Briana Oursler Reviewed-by: Stefano Brivio Reviewed-by: Davide Caratti Signed-off-by: David S. Miller