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2020-05-28perf evsel: Rename perf_evsel__object_config() to evsel__object_config()Arnaldo Carvalho de Melo3-13/+11
As it is a 'struct evsel' method, not part of tools/lib/perf/, aka libperf, to whom the perf_ prefix belongs. Cc: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-05-28Merge tag 'v5.7-rc7' into perf/core, to pick up fixesIngo Molnar79-553/+1688
Signed-off-by: Ingo Molnar <[email protected]>
2020-05-27net: add large ecmp group nexthop testsStephen Worley1-2/+82
Add a couple large ecmp group nexthop selftests to cover the remnant fixed by d69100b8eee27c2d60ee52df76e0b80a8d492d34. The tests create 100 x32 ecmp groups of ipv4 and ipv6 and then dump them. On kernels without the fix, they will fail due to data remnant during the dump. Signed-off-by: Stephen Worley <[email protected]> Reviewed-by: David Ahern <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-27net/sched: fix infinite loop in sch_fq_pieDavide Caratti1-0/+21
this command hangs forever: # tc qdisc add dev eth0 root fq_pie flows 65536 watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [tc:1028] [...] CPU: 1 PID: 1028 Comm: tc Not tainted 5.7.0-rc6+ #167 RIP: 0010:fq_pie_init+0x60e/0x8b7 [sch_fq_pie] Code: 4c 89 65 50 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 2a 02 00 00 48 8d 7d 10 4c 89 65 58 48 89 f8 48 c1 e8 03 42 80 3c 30 00 <0f> 85 a7 01 00 00 48 8d 7d 18 48 c7 45 10 46 c3 23 00 48 89 f8 48 RSP: 0018:ffff888138d67468 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff9200018d2b2 RBX: ffff888139c1c400 RCX: ffffffffffffffff RDX: 000000000000c5e8 RSI: ffffc900000e5000 RDI: ffffc90000c69590 RBP: ffffc90000c69580 R08: fffffbfff79a9699 R09: fffffbfff79a9699 R10: 0000000000000700 R11: fffffbfff79a9698 R12: ffffc90000c695d0 R13: 0000000000000000 R14: dffffc0000000000 R15: 000000002347c5e8 FS: 00007f01e1850e40(0000) GS:ffff88814c880000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000067c340 CR3: 000000013864c000 CR4: 0000000000340ee0 Call Trace: qdisc_create+0x3fd/0xeb0 tc_modify_qdisc+0x3be/0x14a0 rtnetlink_rcv_msg+0x5f3/0x920 netlink_rcv_skb+0x121/0x350 netlink_unicast+0x439/0x630 netlink_sendmsg+0x714/0xbf0 sock_sendmsg+0xe2/0x110 ____sys_sendmsg+0x5b4/0x890 ___sys_sendmsg+0xe9/0x160 __sys_sendmsg+0xd3/0x170 do_syscall_64+0x9a/0x370 entry_SYSCALL_64_after_hwframe+0x44/0xa9 we can't accept 65536 as a valid number for 'nflows', because the loop on 'idx' in fq_pie_init() will never end. The extack message is correct, but it doesn't say that 0 is not a valid number for 'flows': while at it, fix this also. Add a tdc selftest to check correct validation of 'flows'. CC: Ivan Vecera <[email protected]> Fixes: ec97ecf1ebe4 ("net: sched: add Flow Queue PIE packet scheduler") Signed-off-by: Davide Caratti <[email protected]> Reviewed-by: Ivan Vecera <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-26mlxsw: spectrum: Reduce priority of locally delivered packetsIdo Schimmel1-1/+1
To align with recent recommended values. Will be configurable by future patches. Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-26x86/syscalls: Revert "x86/syscalls: Make __X32_SYSCALL_BIT be unsigned long"Andy Lutomirski1-1/+1
Revert 45e29d119e99 ("x86/syscalls: Make __X32_SYSCALL_BIT be unsigned long") and add a comment to discourage someone else from making the same mistake again. It turns out that some user code fails to compile if __X32_SYSCALL_BIT is unsigned long. See, for example [1] below. [ bp: Massage and do the same thing in the respective tools/ header. ] Fixes: 45e29d119e99 ("x86/syscalls: Make __X32_SYSCALL_BIT be unsigned long") Reported-by: Thorsten Glaser <[email protected]> Signed-off-by: Andy Lutomirski <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: [email protected] Link: [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=954294 Link: https://lkml.kernel.org/r/92e55442b744a5951fdc9cfee10badd0a5f7f828.1588983892.git.luto@kernel.org
2020-05-25Merge tag 'linux-cpupower-5.8-rc1' of ↵Rafael J. Wysocki7-9/+9
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux Pull cpupower utility updates for v5.8-rc1 from Shuah Khan: "This cpupower update for Linux 5.8-rc1 consists of a single patch to fix coccicheck unneeded semicolon warning." * tag 'linux-cpupower-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: cpupower: Remove unneeded semicolon
2020-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller11-5/+241
The MSCC bug fix in 'net' had to be slightly adjusted because the register accesses are done slightly differently in net-next. Signed-off-by: David S. Miller <[email protected]>
2020-05-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds5-3/+26
Pull networking fixes from David Miller: 1) Fix RCU warnings in ipv6 multicast router code, from Madhuparna Bhowmik. 2) Nexthop attributes aren't being checked properly because of mis-initialized iterator, from David Ahern. 3) Revert iop_idents_reserve() change as it caused performance regressions and was just working around what is really a UBSAN bug in the compiler. From Yuqi Jin. 4) Read MAC address properly from ROM in bmac driver (double iteration proceeds past end of address array), from Jeremy Kerr. 5) Add Microsoft Surface device IDs to r8152, from Marc Payne. 6) Prevent reference to freed SKB in __netif_receive_skb_core(), from Boris Sukholitko. 7) Fix ACK discard behavior in rxrpc, from David Howells. 8) Preserve flow hash across packet scrubbing in wireguard, from Jason A. Donenfeld. 9) Cap option length properly for SO_BINDTODEVICE in AX25, from Eric Dumazet. 10) Fix encryption error checking in kTLS code, from Vadim Fedorenko. 11) Missing BPF prog ref release in flow dissector, from Jakub Sitnicki. 12) dst_cache must be used with BH disabled in tipc, from Eric Dumazet. 13) Fix use after free in mlxsw driver, from Jiri Pirko. 14) Order kTLS key destruction properly in mlx5 driver, from Tariq Toukan. 15) Check devm_platform_ioremap_resource() return value properly in several drivers, from Tiezhu Yang. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (71 commits) net: smsc911x: Fix runtime PM imbalance on error net/mlx4_core: fix a memory leak bug. net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during suspend net: phy: mscc: fix initialization of the MACsec protocol mode net: stmmac: don't attach interface until resume finishes net: Fix return value about devm_platform_ioremap_resource() net/mlx5: Fix error flow in case of function_setup failure net/mlx5e: CT: Correctly get flow rule net/mlx5e: Update netdev txq on completions during closure net/mlx5: Annotate mutex destroy for root ns net/mlx5: Don't maintain a case of del_sw_func being null net/mlx5: Fix cleaning unmanaged flow tables net/mlx5: Fix memory leak in mlx5_events_init net/mlx5e: Fix inner tirs handling net/mlx5e: kTLS, Destroy key object after destroying the TIS net/mlx5e: Fix allowed tc redirect merged eswitch offload cases net/mlx5: Avoid processing commands before cmdif is ready net/mlx5: Fix a race when moving command interface to events mode net/mlx5: Add command entry handling completion rxrpc: Fix a memory leak in rxkad_verify_response() ...
2020-05-23selftests/vm/write_to_hugetlbfs.c: fix unused variable warningJohn Hubbard1-2/+0
Remove unused variable "i", which was triggering a compiler warning. Fixes: 29750f71a9b4 ("hugetlb_cgroup: add hugetlb_cgroup reservation tests") Signed-off-by: John Hubbard <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-By: Mina Almasry <[email protected]> Cc: Brian Geffon <[email protected]> Cc: "Kirill A . Shutemov" <[email protected]> Cc: Shuah Khan <[email protected]> Cc: Ralph Campbell <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-05-23selftests/vm/.gitignore: add mremap_dontunmapJohn Hubbard1-0/+1
Add mremap_dontunmap to .gitignore. Fixes: 0c28759ee3c9 ("selftests: add MREMAP_DONTUNMAP selftest") Signed-off-by: John Hubbard <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Cc: Kirill A. Shutemov <[email protected]> Cc: Brian Geffon <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2020-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller31-733/+949
Daniel Borkmann says: ==================== pull-request: bpf-next 2020-05-23 The following pull-request contains BPF updates for your *net-next* tree. We've added 50 non-merge commits during the last 8 day(s) which contain a total of 109 files changed, 2776 insertions(+), 2887 deletions(-). The main changes are: 1) Add a new AF_XDP buffer allocation API to the core in order to help lowering the bar for drivers adopting AF_XDP support. i40e, ice, ixgbe as well as mlx5 have been moved over to the new API and also gained a small improvement in performance, from Björn Töpel and Magnus Karlsson. 2) Add getpeername()/getsockname() attach types for BPF sock_addr programs in order to allow for e.g. reverse translation of load-balancer backend to service address/port tuple from a connected peer, from Daniel Borkmann. 3) Improve the BPF verifier is_branch_taken() logic to evaluate pointers being non-NULL, e.g. if after an initial test another non-NULL test on that pointer follows in a given path, then it can be pruned right away, from John Fastabend. 4) Larger rework of BPF sockmap selftests to make output easier to understand and to reduce overall runtime as well as adding new BPF kTLS selftests that run in combination with sockmap, also from John Fastabend. 5) Batch of misc updates to BPF selftests including fixing up test_align to match verifier output again and moving it under test_progs, allowing bpf_iter selftest to compile on machines with older vmlinux.h, and updating config options for lirc and v6 segment routing helpers, from Stanislav Fomichev, Andrii Nakryiko and Alan Maguire. 6) Conversion of BPF tracing samples outdated internal BPF loader to use libbpf API instead, from Daniel T. Lee. 7) Follow-up to BPF kernel test infrastructure in order to fix a flake in the XDP selftests, from Jesper Dangaard Brouer. 8) Minor improvements to libbpf's internal hashmap implementation, from Ian Rogers. ==================== Signed-off-by: David S. Miller <[email protected]>
2020-05-23selftests/bpf: CONFIG_LIRC required for test_lirc_mode2.shAlan Maguire1-0/+1
test_lirc_mode2.sh assumes presence of /sys/class/rc/rc0/lirc*/uevent which will not be present unless CONFIG_LIRC=y Fixes: 6bdd533cee9a ("bpf: add selftest for lirc_mode2 type program") Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-05-23selftests/bpf: CONFIG_IPV6_SEG6_BPF required for test_seg6_loop.oAlan Maguire1-0/+1
test_seg6_loop.o uses the helper bpf_lwt_seg6_adjust_srh(); it will not be present if CONFIG_IPV6_SEG6_BPF is not specified. Fixes: b061017f8b4d ("selftests/bpf: add realistic loop tests") Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-05-23selftests/bpf: Add general instructions for test executionAlan Maguire1-0/+2
Getting a clean BPF selftests run involves ensuring latest trunk LLVM/clang are used, pahole is recent (>=1.16) and config matches the specified config file as closely as possible. Add to bpf_devel_QA.rst and point tools/testing/selftests/bpf/README.rst to it. Signed-off-by: Alan Maguire <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-05-22selftests: mlxsw: qos_mc_aware: Specify arping timeout as an integerAmit Cohen1-1/+1
Starting from iputils s20190709 (used in Fedora 31), arping does not support timeout being specified as a decimal: $ arping -c 1 -I swp1 -b 192.0.2.66 -q -w 0.1 arping: invalid argument: '0.1' Previously, such timeouts were rounded to an integer. Fix this by specifying the timeout as an integer. Fixes: a5ee171d087e ("selftests: mlxsw: qos_mc_aware: Add a test for UC awareness") Signed-off-by: Amit Cohen <[email protected]> Reviewed-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-22selftests: netdevsim: Always initialize 'RET' variableIdo Schimmel1-0/+4
The variable is used by log_test() to check if the test case completely successfully or not. In case it is not initialized at the start of a test case, it is possible for the test case to fail despite not encountering any errors. Example: ``` ... TEST: Trap group statistics [ OK ] TEST: Trap policer [FAIL] Policer drop counter was not incremented TEST: Trap policer binding [FAIL] Policer drop counter was not incremented ``` Failure of trap_policer_test() caused trap_policer_bind_test() to fail as well. Fix by adding missing initialization of the variable. Fixes: 5fbff58e27a1 ("selftests: netdevsim: Add test cases for devlink-trap policers") Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller2-1/+20
Daniel Borkmann says: ==================== pull-request: bpf 2020-05-22 The following pull-request contains BPF updates for your *net* tree. We've added 3 non-merge commits during the last 3 day(s) which contain a total of 5 files changed, 69 insertions(+), 11 deletions(-). The main changes are: 1) Fix to reject mmap()'ing read-only array maps as writable since BPF verifier relies on such map content to be frozen, from Andrii Nakryiko. 2) Fix breaking audit from secid_to_secctx() LSM hook by avoiding to use call_int_hook() since this hook is not stackable, from KP Singh. 3) Fix BPF flow dissector program ref leak on netns cleanup, from Jakub Sitnicki. ==================== Signed-off-by: David S. Miller <[email protected]>
2020-05-22selftests: net: add fdb nexthop testsRoopa Prabhu1-2/+158
This commit adds ipv4 and ipv6 fdb nexthop api tests to fib_nexthops.sh. Signed-off-by: Roopa Prabhu <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-22tools/power/x86/intel-speed-select: Fix invalid core maskSrinivas Pandruvada2-1/+2
The core mask display is wrong in some cases. This is showing more cpus than the mask has. This is because mask is 64 bit but it used with BIT() macro to get the presence of CPU which doesn't support unsigned long long. Added a new macro for BIT_ULL and use that to get the presence of a CPU. Signed-off-by: Srinivas Pandruvada <[email protected]>
2020-05-22tools/power/x86/intel-speed-select: Increase CPU countSrinivas Pandruvada1-1/+1
Increase CPU count so that more than 64 is supported in one request. For example: sudo ./intel-speed-select -d --cpu 0-66 core-power assoc -clos 0 The above command stops at 63. With this change, it can support more CPU numbers from 0-255. Signed-off-by: Srinivas Pandruvada <[email protected]>
2020-05-22tools/power/x86/intel-speed-select: Fix json perf-profile output outputPrarit Bhargava1-8/+18
The 'intel-speed-select -f json perf-profile get-lock-status' command outputs the package, die, and cpu data as separate fields. ex) "package-0": { "die-0": { "cpu-0": { Commit 74062363f855 ("tools/power/x86/intel-speed-select: Avoid duplicate Package strings for json") prettied this output so that it is a single line for some json output commands and the same should be done for other commands. Output package, die, and cpu info in a single line when using json output. Signed-off-by: Prarit Bhargava <[email protected]> Cc: Srinivas Pandruvada <[email protected]> Cc: [email protected] Signed-off-by: Srinivas Pandruvada <[email protected]>
2020-05-21bpf: Selftests, add printk to test_sk_lookup_kern to encode null ptr checkJohn Fastabend1-0/+1
Adding a printk to test_sk_lookup_kern created the reported failure where a pointer type is checked twice for NULL. Lets add it to the progs test test_sk_lookup_kern.c so we test the case from C all the way into the verifier. We already have printk's in selftests so seems OK to add another one. Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/159009170603.6313.1715279795045285176.stgit@john-Precision-5820-Tower
2020-05-21bpf: Selftests, verifier case for non null pointer map value branchJohn Fastabend1-0/+19
When we have pointer type that is known to be non-null we only follow the non-null branch. This adds tests to cover the map_value pointer returned from a map lookup. To force an error if both branches are followed we do an ALU op on R10. Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/159009168650.6313.7434084136067263554.stgit@john-Precision-5820-Tower
2020-05-21bpf: Selftests, verifier case for non null pointer check branch takenJohn Fastabend1-0/+33
When we have pointer type that is known to be non-null and comparing against zero we only follow the non-null branch. This adds tests to cover this case for reference tracking. Also add the other case when comparison against a non-zero value and ensure we still fail with unreleased reference. Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/159009166599.6313.1593680633787453767.stgit@john-Precision-5820-Tower
2020-05-20wireguard: selftests: use newer iproute2 for gcc-10Jason A. Donenfeld1-1/+1
gcc-10 switched to defaulting to -fno-common, which broke iproute2-5.4. This was fixed in iproute-5.6, so switch to that. Because we're after a stable testing surface, we generally don't like to bump these unnecessarily, but in this case, being able to actually build is a basic necessity. Signed-off-by: Jason A. Donenfeld <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-20bpf: Prevent mmap()'ing read-only maps as writableAndrii Nakryiko2-1/+20
As discussed in [0], it's dangerous to allow mapping BPF map, that's meant to be frozen and is read-only on BPF program side, because that allows user-space to actually store a writable view to the page even after it is frozen. This is exacerbated by BPF verifier making a strong assumption that contents of such frozen map will remain unchanged. To prevent this, disallow mapping BPF_F_RDONLY_PROG mmap()'able BPF maps as writable, ever. [0] https://lore.kernel.org/bpf/CAEf4BzYGWYhXdp6BJ7_=9OQPJxQpgug080MMjdSB72i9R+5c6g@mail.gmail.com/ Fixes: fc9702273e2e ("bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY") Suggested-by: Jann Horn <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Reviewed-by: Jann Horn <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-05-20objtool: Enable compilation of objtool for all architecturesMatt Helsley12-34/+73
Objtool currently only compiles for x86 architectures. This is fine as it presently does not support tooling for other architectures. However, we would like to be able to convert other kernel tools to run as objtool sub commands because they too process ELF object files. This will allow us to convert tools such as recordmcount to use objtool's ELF code. Since much of recordmcount's ELF code is copy-paste code to/from a variety of other kernel tools (look at modpost for example) this means that if we can convert recordmcount we can convert more. We define weak definitions for subcommand entry functions and other weak definitions for shared functions critical to building existing subcommands. These return 127 when the command is missing which signify tools that do not exist on all architectures. In this case the "check" and "orc" tools do not exist on all architectures so we only add them for x86. Future changes adding support for "check", to arm64 for example, can then modify the SUBCMD_CHECK variable when building for arm64. Objtool is not currently wired in to KConfig to be built for other architectures because it's not needed for those architectures and there are no commands it supports other than those for x86. As more command support is enabled on various architectures the necessary KConfig changes can be made (e.g. adding "STACK_VALIDATION") to trigger building objtool. [ jpoimboe: remove aliases, add __weak macro, add error messages ] Cc: Julien Thierry <[email protected]> Signed-off-by: Matt Helsley <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]>
2020-05-20objtool: Move struct objtool_file into arch-independent headerMatt Helsley2-9/+23
The objtool_file structure describes the files objtool works on, is used by the check subcommand, and the check.h header is included by the orc subcommands so it's presently used by all subcommands. Since the structure will be useful in all subcommands besides check, and some subcommands may not want to include check.h to get the definition, split the structure out into a new header meant for use by all objtool subcommands. Signed-off-by: Matt Helsley <[email protected]> Reviewed-by: Julien Thierry <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]>
2020-05-20objtool: Exit successfully when requesting helpMatt Helsley1-1/+3
When the user requests help it's not an error so do not exit with a non-zero exit code. This is not especially useful for a user but any script that might wish to check that objtool --help is at least available can't rely on the exit code to crudely check that, for example, building an objtool executable succeeds. Signed-off-by: Matt Helsley <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]>
2020-05-20objtool: Add check_kcov_mode() to the uaccess safelistJosh Poimboeuf1-0/+1
check_kcov_mode() is called by write_comp_data() and __sanitizer_cov_trace_pc(), which are already on the uaccess safe list. It's notrace and doesn't call out to anything else, so add it to the list too. This fixes the following warnings: kernel/kcov.o: warning: objtool: __sanitizer_cov_trace_pc()+0x15: call to check_kcov_mode() with UACCESS enabled kernel/kcov.o: warning: objtool: write_comp_data()+0x1b: call to check_kcov_mode() with UACCESS enabled Reported-by: Arnd Bergmann <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]>
2020-05-20Merge tag 'noinstr-x86-kvm-2020-05-16' of ↵Paolo Bonzini66-532/+1414
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into HEAD
2020-05-19selftests/bpf: Convert bpf_iter_test_kern{3, 4}.c to define own bpf_iter_metaAndrii Nakryiko2-0/+30
b9f4c01f3e0b ("selftest/bpf: Make bpf_iter selftest compilable against old vmlinux.h") missed the fact that bpf_iter_test_kern{3,4}.c are not just including bpf_iter_test_kern_common.h and need similar bpf_iter_meta re-definition explicitly. Fixes: b9f4c01f3e0b ("selftest/bpf: Make bpf_iter selftest compilable against old vmlinux.h") Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-05-19mm/hmm/test: add selftests for HMMRalph Campbell6-0/+1478
Add some basic stand alone self tests for HMM. The test program and shell scripts use the test_hmm.ko driver to exercise HMM functionality in the kernel. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Ralph Campbell <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
2020-05-19selftest/bpf: Make bpf_iter selftest compilable against old vmlinux.hAndrii Nakryiko6-0/+98
It's good to be able to compile bpf_iter selftest even on systems that don't have the very latest vmlinux.h, e.g., for libbpf tests against older kernels in Travis CI. To that extent, re-define bpf_iter_meta and corresponding bpf_iter context structs in each selftest. To avoid type clashes with vmlinux.h, rename vmlinux.h's definitions to get them out of the way. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Yonghong Song <[email protected]> Acked-by: Jesper Dangaard Brouer <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-05-19tools/bpf: sync bpf.hAlexei Starovoitov1-3/+3
Sync tools/include/uapi/linux/bpf.h from include/uapi. Signed-off-by: Alexei Starovoitov <[email protected]>
2020-05-19bpf, testing: Add get{peer, sock}name selftests to test_progsDaniel Borkmann5-33/+215
Extend the existing connect_force_port test to assert get{peer,sock}name programs as well. The workflow for e.g. IPv4 is as follows: i) server binds to concrete port, ii) client calls getsockname() on server fd which exposes 1.2.3.4:60000 to client, iii) client connects to service address 1.2.3.4:60000 binds to concrete local address (127.0.0.1:22222) and remaps service address to a concrete backend address (127.0.0.1:60123), iv) client then calls getsockname() on its own fd to verify local address (127.0.0.1:22222) and getpeername() on its own fd which then publishes service address (1.2.3.4:60000) instead of actual backend. Same workflow is done for IPv6 just with different address/port tuples. # ./test_progs -t connect_force_port #14 connect_force_port:OK Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Acked-by: Andrey Ignatov <[email protected]> Link: https://lore.kernel.org/bpf/3343da6ad08df81af715a95d61a84fb4a960f2bf.1589841594.git.daniel@iogearbox.net
2020-05-19bpf, bpftool: Enable get{peer, sock}name attach typesDaniel Borkmann6-15/+30
Make bpftool aware and add the new get{peer,sock}name attach types to its cli, documentation and bash completion to allow attachment/detachment of sock_addr programs there. Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Acked-by: Andrey Ignatov <[email protected]> Link: https://lore.kernel.org/bpf/9765b3d03e4c29210c4df56a9cc7e52f5f7bb5ef.1589841594.git.daniel@iogearbox.net
2020-05-19bpf, libbpf: Enable get{peer, sock}name attach typesDaniel Borkmann1-0/+8
Trivial patch to add the new get{peer,sock}name attach types to the section definitions in order to hook them up to sock_addr cgroup program type. Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Acked-by: Andrey Ignatov <[email protected]> Link: https://lore.kernel.org/bpf/7fcd4b1e41a8ebb364754a5975c75a7795051bd2.1589841594.git.daniel@iogearbox.net
2020-05-19bpf: Add get{peer, sock}name attach types for sock_addrDaniel Borkmann1-0/+4
As stated in 983695fa6765 ("bpf: fix unconnected udp hooks"), the objective for the existing cgroup connect/sendmsg/recvmsg/bind BPF hooks is to be transparent to applications. In Cilium we make use of these hooks [0] in order to enable E-W load balancing for existing Kubernetes service types for all Cilium managed nodes in the cluster. Those backends can be local or remote. The main advantage of this approach is that it operates as close as possible to the socket, and therefore allows to avoid packet-based NAT given in connect/sendmsg/recvmsg hooks we only need to xlate sock addresses. This also allows to expose NodePort services on loopback addresses in the host namespace, for example. As another advantage, this also efficiently blocks bind requests for applications in the host namespace for exposed ports. However, one missing item is that we also need to perform reverse xlation for inet{,6}_getname() hooks such that we can return the service IP/port tuple back to the application instead of the remote peer address. The vast majority of applications does not bother about getpeername(), but in a few occasions we've seen breakage when validating the peer's address since it returns unexpectedly the backend tuple instead of the service one. Therefore, this trivial patch allows to customise and adds a getpeername() as well as getsockname() BPF cgroup hook for both IPv4 and IPv6 in order to address this situation. Simple example: # ./cilium/cilium service list ID Frontend Service Type Backend 1 1.2.3.4:80 ClusterIP 1 => 10.0.0.10:80 Before; curl's verbose output example, no getpeername() reverse xlation: # curl --verbose 1.2.3.4 * Rebuilt URL to: 1.2.3.4/ * Trying 1.2.3.4... * TCP_NODELAY set * Connected to 1.2.3.4 (10.0.0.10) port 80 (#0) > GET / HTTP/1.1 > Host: 1.2.3.4 > User-Agent: curl/7.58.0 > Accept: */* [...] After; with getpeername() reverse xlation: # curl --verbose 1.2.3.4 * Rebuilt URL to: 1.2.3.4/ * Trying 1.2.3.4... * TCP_NODELAY set * Connected to 1.2.3.4 (1.2.3.4) port 80 (#0) > GET / HTTP/1.1 > Host: 1.2.3.4 > User-Agent: curl/7.58.0 > Accept: */* [...] Originally, I had both under a BPF_CGROUP_INET{4,6}_GETNAME type and exposed peer to the context similar as in inet{,6}_getname() fashion, but API-wise this is suboptimal as it always enforces programs having to test for ctx->peer which can easily be missed, hence BPF_CGROUP_INET{4,6}_GET{PEER,SOCK}NAME split. Similarly, the checked return code is on tnum_range(1, 1), but if a use case comes up in future, it can easily be changed to return an error code instead. Helper and ctx member access is the same as with connect/sendmsg/etc hooks. [0] https://github.com/cilium/cilium/blob/master/bpf/bpf_sock.c Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Acked-by: Andrey Ignatov <[email protected]> Link: https://lore.kernel.org/bpf/61a479d759b2482ae3efb45546490bacd796a220.1589841594.git.daniel@iogearbox.net
2020-05-19Merge tag 'noinstr-lds-2020-05-19' into core/rcuThomas Gleixner68-534/+1419
Get the noinstr section and annotation markers to base the RCU parts on.
2020-05-18Merge tag 'v5.7-rc6' into objtool/core, to pick up fixes and resolve ↵Ingo Molnar72-546/+1659
semantic conflict Resolve structural conflict between: 59566b0b622e: ("x86/ftrace: Have ftrace trampolines turn read-only at the end of system boot up") which introduced a new reference to 'ftrace_epilogue', and: 0298739b7983: ("x86,ftrace: Fix ftrace_regs_caller() unwind") Which renamed it to 'ftrace_caller_end'. Rename the new usage site in the merge commit. Signed-off-by: Ingo Molnar <[email protected]>
2020-05-17selftests: Drop 'pref medium' in route checksDavid Ahern1-2/+2
The 'pref medium' attribute was moved in iproute2 to be near the prefix which is where it applies versus after the last nexthop. The nexthop tests were updated to drop the string from route checking, but it crept in again with the compat tests. Fixes: 4dddb5be136a ("selftests: net: add new testcases for nexthop API compat mode sysctl") Signed-off-by: David Ahern <[email protected]> Cc: Roopa Prabhu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-16selftests: mlxsw: Do not hard code trap group nameIdo Schimmel7-72/+43
It can be derived dynamically from the trap's name, so drop it. Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-16selftests: devlink_lib: Remove double blank lineIdo Schimmel1-1/+0
One blank line is enough. Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-05-16Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds4-0/+214
Pull kvm fixes from Paolo Bonzini: "A new testcase for guest debugging (gdbstub) that exposed a bunch of bugs, mostly for AMD processors. And a few other x86 fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce KVM: x86: Fix pkru save/restore when guest CR4.PKE=0, move it to x86.c KVM: SVM: Disable AVIC before setting V_IRQ KVM: Introduce kvm_make_all_cpus_request_except() KVM: VMX: pass correct DR6 for GD userspace exit KVM: x86, SVM: isolate vcpu->arch.dr6 from vmcb->save.dr6 KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6 KVM: nSVM: trap #DB and #BP to userspace if guest debugging is on KVM: selftests: Add KVM_SET_GUEST_DEBUG test KVM: X86: Fix single-step with KVM_SET_GUEST_DEBUG KVM: X86: Set RTM for DB_VECTOR too for KVM_EXIT_DEBUG KVM: x86: fix DR6 delivery for various cases of #DB injection KVM: X86: Declare KVM_CAP_SET_GUEST_DEBUG properly
2020-05-16bpf: Selftests, add ktls tests to test_sockmapJohn Fastabend1-26/+44
Until now we have only had minimal ktls+sockmap testing when being used with helpers and different sendmsg/sendpage patterns. Add a pass with ktls here. To run just ktls tests, $ ./test_sockmap --whitelist="ktls" Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/158939736278.15176.5435314315563203761.stgit@john-Precision-5820-Tower
2020-05-16bpf: Selftests, add blacklist to test_sockmapJohn Fastabend1-2/+31
This adds a blacklist to test_sockmap. For example, now we can run all apply and cork tests except those with timeouts by doing, $ ./test_sockmap --whitelist "apply,cork" --blacklist "hang" Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/158939734350.15176.6643981099665208826.stgit@john-Precision-5820-Tower
2020-05-16bpf: Selftests, add whitelist option to test_sockmapJohn Fastabend1-1/+30
Allow running specific tests with a comma deliminated whitelist. For example to run all apply and cork tests. $ ./test_sockmap --whitelist="cork,apply" Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/158939732464.15176.1959113294944564542.stgit@john-Precision-5820-Tower
2020-05-16bpf: Selftests, provide verbose option for selftests executionJohn Fastabend1-108/+71
Pass options from command line args into individual tests which allows us to use verbose option from command line with selftests. Now when verbose option is set individual subtest details will be printed. Also we can consolidate cgroup bring up and tear down. Additionally just setting verbose is very noisy so introduce verbose=1 and verbose=2. Really verbose=2 is only useful when developing tests or debugging some specific issue. For example now we get output like this with --verbose, #20/17 sockhash:txmsg test pull-data:OK [TEST 160]: (512, 1, 3, sendpage, pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 1 cnt 512 err 0 [TEST 161]: (100, 1, 5, sendpage, pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 3 cnt 100 err 0 [TEST 162]: (2, 1024, 256, sendpage, pop (4096,8192),): msg_loop_rx: iov_count 1 iov_buf 255 cnt 2 err 0 [TEST 163]: (512, 1, 3, sendpage, redir,pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 1 cnt 512 err 0 [TEST 164]: (100, 1, 5, sendpage, redir,pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 3 cnt 100 err 0 [TEST 165]: (512, 1, 3, sendpage, cork 512,pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 1 cnt 512 err 0 [TEST 166]: (100, 1, 5, sendpage, cork 512,pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 3 cnt 100 err 0 [TEST 167]: (512, 1, 3, sendpage, redir,cork 4,pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 1 cnt 512 err 0 [TEST 168]: (100, 1, 5, sendpage, redir,cork 4,pop (1,3),): msg_loop_rx: iov_count 1 iov_buf 3 cnt 100 err 0 Signed-off-by: John Fastabend <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Jakub Sitnicki <[email protected]> Link: https://lore.kernel.org/bpf/158939730412.15176.1975675235035143367.stgit@john-Precision-5820-Tower
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