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2018-07-29selftests: add a selftest for directed broadcast forwardingXin Long
As Ido's suggestion, this patch is to add a selftest for directed broadcast forwarding with vrf. It does the assertion by checking the src IP of the echo-reply packet in ping_test_from. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-27selftests: mlxsw: Add test for trust-DSCPPetr Machata
Add a test that exercises the new code. Send DSCP-tagged packets, and observe how they are prioritized in the switch and the DSCP is updated on egress again. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26selftests/net: add tls to .gitignoreAnders Roxell
Add the tls binary to .gitignore Fixes: 7f657d5bf507 ("selftests: tls: add selftests for TLS sockets") Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26selftests: forwarding: add tests for TC chain get and dump operationsJiri Pirko
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-24Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2018-07-23selftests: forwarding: add tests for TC chain templatesJiri Pirko
Add basic sanity tests for TC chain templates. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-23selftests: forwarding: add tests for TC chains creation adn destructionJiri Pirko
Add basic sanity tests for TC chains. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-23selftests: forwarding: move shblock tc support check to a separate helperJiri Pirko
The shared block support is only needed for tc_shblock.sh. No need to require that for other test. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-23selftests: forwarding: gre_multipath: Drop IPv6 testsPetr Machata
Support for device-only IPv6 multipath next hops was dropped in commit 33bd5ac54dc4 ("net/ipv6: Revert attempt to simplify route replace and append") and as of commit b5d2d75e079a ("net/ipv6: Do not allow device only routes via the multipath API"), attempts to add a next hop like that yield an explicit diagnostic. Correspondingly, drop the IPv6 parts of GRE multipath test that are supposed to test that code. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-07-20 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Add sharing of BPF objects within one ASIC: this allows for reuse of the same program on multiple ports of a device, and therefore gains better code store utilization. On top of that, this now also enables sharing of maps between programs attached to different ports of a device, from Jakub. 2) Cleanup in libbpf and bpftool's Makefile to reduce unneeded feature detections and unused variable exports, also from Jakub. 3) First batch of RCU annotation fixes in prog array handling, i.e. there are several __rcu markers which are not correct as well as some of the RCU handling, from Roman. 4) Two fixes in BPF sample files related to checking of the prog_cnt upper limit from sample loader, from Dan. 5) Minor cleanup in sockmap to remove a set but not used variable, from Colin. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-20Merge ra.kernel.org:/pub/scm/linux/kernel/git/torvalds/linuxDavid S. Miller
All conflicts were trivial overlapping changes, so reasonably easy to resolve. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-20bpf: Use option "help" in the llvm-objcopy testMartin KaFai Lau
I noticed the "--version" option of the llvm-objcopy command has recently disappeared from the master llvm branch. It is currently used as a BTF support test in tools/testing/selftests/bpf/Makefile. This patch replaces it with "--help" which should be less error prone in the future. Fixes: c0fa1b6c3efc ("bpf: btf: Add BTF tests") Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-19bpf: test case to check whether src/dst regs got mangled by xaddDaniel Borkmann
We currently do not have such a test case in test_verifier selftests but it's important to test under bpf_jit_enable=1 to make sure JIT implementations do not mistakenly mess with src/dst reg for xadd/{w,dw}. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-07-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Lots of fixes, here goes: 1) NULL deref in qtnfmac, from Gustavo A. R. Silva. 2) Kernel oops when fw download fails in rtlwifi, from Ping-Ke Shih. 3) Lost completion messages in AF_XDP, from Magnus Karlsson. 4) Correct bogus self-assignment in rhashtable, from Rishabh Bhatnagar. 5) Fix regression in ipv6 route append handling, from David Ahern. 6) Fix masking in __set_phy_supported(), from Heiner Kallweit. 7) Missing module owner set in x_tables icmp, from Florian Westphal. 8) liquidio's timeouts are HZ dependent, fix from Nicholas Mc Guire. 9) Link setting fixes for sh_eth and ravb, from Vladimir Zapolskiy. 10) Fix NULL deref when using chains in act_csum, from Davide Caratti. 11) XDP_REDIRECT needs to check if the interface is up and whether the MTU is sufficient. From Toshiaki Makita. 12) Net diag can do a double free when killing TCP_NEW_SYN_RECV connections, from Lorenzo Colitti. 13) nf_defrag in ipv6 can unnecessarily hold onto dst entries for a full minute, delaying device unregister. From Eric Dumazet. 14) Update MAC entries in the correct order in ixgbe, from Alexander Duyck. 15) Don't leave partial mangles bpf program in jit_subprogs, from Daniel Borkmann. 16) Fix pfmemalloc SKB state propagation, from Stefano Brivio. 17) Fix ACK handling in DCTCP congestion control, from Yuchung Cheng. 18) Use after free in tun XDP_TX, from Toshiaki Makita. 19) Stale ipv6 header pointer in ipv6 gre code, from Prashant Bhole. 20) Don't reuse remainder of RX page when XDP is set in mlx4, from Saeed Mahameed. 21) Fix window probe handling of TCP rapair sockets, from Stefan Baranoff. 22) Missing socket locking in smc_ioctl(), from Ursula Braun. 23) IPV6_ILA needs DST_CACHE, from Arnd Bergmann. 24) Spectre v1 fix in cxgb3, from Gustavo A. R. Silva. 25) Two spots in ipv6 do a rol32() on a hash value but ignore the result. Fixes from Colin Ian King" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (176 commits) tcp: identify cryptic messages as TCP seq # bugs ptp: fix missing break in switch hv_netvsc: Fix napi reschedule while receive completion is busy MAINTAINERS: Drop inactive Vitaly Bordug's email net: cavium: Add fine-granular dependencies on PCI net: qca_spi: Fix log level if probe fails net: qca_spi: Make sure the QCA7000 reset is triggered net: qca_spi: Avoid packet drop during initial sync ipv6: fix useless rol32 call on hash ipv6: sr: fix useless rol32 call on hash net: sched: Using NULL instead of plain integer net: usb: asix: replace mii_nway_restart in resume path net: cxgb3_main: fix potential Spectre v1 lib/rhashtable: consider param->min_size when setting initial table size net/smc: reset recv timeout after clc handshake net/smc: add error handling for get_user() net/smc: optimize consumer cursor updates net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL. ipv6: ila: select CONFIG_DST_CACHE net: usb: rtl8150: demote allmulti message to dev_dbg() ...
2018-07-18tc-tests: initial version of fw filter unit testsKeara Leibovitz
Create initial unit tests for the tc fw filter. Signed-off-by: Keara Leibovitz <kleib@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-18selftests/bpf: add test for sharing objects between netdevsJakub Kicinski
Add tests for sharing programs and maps between different netdevs. Use netdevsim's ability to pretend multiple netdevs belong to the same "ASIC". Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-18netdevsim: associate bound programs with shared devJakub Kicinski
Move bound program information from netdevsim to shared sub-object, as programs will soon be shared between netdevs of the same ASIC. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-16selftests: tls: add selftests for TLS socketsDave Watson
Add selftests for tls socket. Tests various iov and message options, poll blocking and nonblocking behavior, partial message sends / receives, and control message data. Tests should pass regardless of if TLS is enabled in the kernel or not, and print a warning message if not. Signed-off-by: Dave Watson <davejwatson@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-07-15 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Various different arm32 JIT improvements in order to optimize code emission and make the JIT code itself more robust, from Russell. 2) Support simultaneous driver and offloaded XDP in order to allow for advanced use-cases where some work is offloaded to the NIC and some to the host. Also add ability for bpftool to load programs and maps beyond just the cgroup case, from Jakub. 3) Add BPF JIT support in nfp for multiplication as well as division. For the latter in particular, it uses the reciprocal algorithm to emulate it, from Jiong. 4) Add BTF pretty print functionality to bpftool in plain and JSON output format, from Okash. 5) Add build and installation to the BPF helper man page into bpftool, from Quentin. 6) Add a TCP BPF callback for listening sockets which is triggered right after the socket transitions to TCP_LISTEN state, from Andrey. 7) Add a new cgroup tree command to bpftool which iterates over the whole cgroup tree and prints all attached programs, from Roman. 8) Improve xdp_redirect_cpu sample to support parsing of double VLAN tagged packets, from Jesper. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-15selftests/bpf: Test case for BPF_SOCK_OPS_TCP_LISTEN_CBAndrey Ignatov
Cover new TCP-BPF callback in test_tcpbpf: when listen() is called on socket, set BPF_SOCK_OPS_STATE_CB_FLAG so that BPF_SOCK_OPS_STATE_CB callback can be called on future state transition, and when such a transition happens (TCP_LISTEN -> TCP_CLOSE), track it in the map and verify it in user space later. Signed-off-by: Andrey Ignatov <rdna@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-15selftests/bpf: Better verification in test_tcpbpfAndrey Ignatov
Reduce amount of copy/paste for debug info when result is verified in the test and keep that info together with values being checked so that they won't get out of sync. It also improves debug experience: instead of checking manually what doesn't match in debug output for all fields, only unexpected field is printed. Signed-off-by: Andrey Ignatov <rdna@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-15selftests/bpf: Switch test_tcpbpf_user to cgroup_helpersAndrey Ignatov
Switch to cgroup_helpers to simplify the code and fix cgroup cleanup: before cgroup was not cleaned up after the test. It also removes SYSTEM macro, that only printed error, but didn't terminate the test. Signed-off-by: Andrey Ignatov <rdna@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-15selftests/bpf: Fix const'ness in cgroup_helpersAndrey Ignatov
Lack of const in cgroup helpers signatures forces to write ugly client code. Fix it. Signed-off-by: Andrey Ignatov <rdna@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf 2018-07-13 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Fix AF_XDP TX error reporting before final kernel release such that it becomes consistent between copy mode and zero-copy, from Magnus. 2) Fix three different syzkaller reported issues: oob due to ld_abs rewrite with too large offset, another oob in l3 based skb test run and a bug leaving mangled prog in subprog JITing error path, from Daniel. 3) Fix BTF handling for bitfield extraction on big endian, from Okash. 4) Fix a missing linux/errno.h include in cgroup/BPF found by kbuild bot, from Roman. 5) Fix xdp2skb_meta.sh sample by using just command names instead of absolute paths for tc and ip and allow them to be redefined, from Taeung. 6) Fix availability probing for BPF seg6 helpers before final kernel ships so they can be detected at prog load time, from Mathieu. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-13Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull rseq fixes from Ingo Molnar: "Various rseq ABI fixes and cleanups: use get_user()/put_user(), validate parameters and use proper uapi types, etc" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rseq/selftests: cleanup: Update comment above rseq_prepare_unload rseq: Remove unused types_32_64.h uapi header rseq: uapi: Declare rseq_cs field as union, update includes rseq: uapi: Update uapi comments rseq: Use get_user/put_user rather than __get_user/__put_user rseq: Use __u64 for rseq_cs fields, validate user inputs
2018-07-13selftests/bpf: add test for multiple programsJakub Kicinski
Add tests for having an XDP program attached in the driver and another one attached in HW simultaneously. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13netdevsim: add support for simultaneous driver and hw XDPJakub Kicinski
Allow netdevsim to accept driver and offload attachment of XDP BPF programs at the same time. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13xdp: factor out common program/flags handling from driversJakub Kicinski
Basic operations drivers perform during xdp setup and query can be moved to helpers in the core. Encapsulate program and flags into a structure and add helpers. Note that the structure is intended as the "main" program information source in the driver. Most drivers will additionally place the program pointer in their fast path or ring structures. The helpers don't have a huge impact now, but they will decrease the code duplication when programs can be installed in HW and driver at the same time. Encapsulating the basic operations in helpers will hopefully also reduce the number of changes to drivers which adopt them. Helpers could really be static inline, but they depend on definition of struct netdev_bpf which means they'd have to be placed in netdevice.h, an already 4500 line header. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13Merge tag 'libnvdimm-fixes-4.18-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dave Jiang: - ensure that a variable passed in by reference to acpi_nfit_ctl is always set to a value. An incremental patch is provided due to notice from testing in -next. The rest of the commits did not exhibit issues. - fix a return path in nsio_rw_bytes() that was not returning "bytes remain" as expected for the function. - address an issue where applications polling on scrub-completion for the NVDIMM may falsely wakeup and read the wrong state value and cause hang. - change the test unit persistent capability attribute to fix up a broken assumption in the unit test infrastructure wrt the 'write_cache' attribute - ratelimit dev_info() in the dax device check_vma() function since this is easily triggered from userspace * tag 'libnvdimm-fixes-4.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: nfit: fix unchecked dereference in acpi_nfit_ctl acpi, nfit: Fix scrub idle detection tools/testing/nvdimm: advertise a write cache for nfit_test acpi/nfit: fix cmd_rc for acpi_nfit_ctl to always return a value dev-dax: check_vma: ratelimit dev_info-s libnvdimm, pmem: Fix memcpy_mcsafe() return code handling in nsio_rw_bytes()
2018-07-12selftests: in udpgso_bench do not test udp zerocopyWillem de Bruijn
The udpgso benchmark compares various configurations of UDP and TCP. Including one that is not upstream, udp zerocopy. This is a leftover from the earlier RFC patchset. The test is part of kselftests and run in continuous spinners. Remove the failing case to make the test start passing. Fixes: 3a687bef148d ("selftests: udp gso benchmark") Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-12tc-testing: add geneve options in tunnel_key unit testsPieter Jansen van Vuuren
Extend tc tunnel_key action unit tests with geneve options. Tests include testing single and multiple geneve options, as well as testing geneve options that are expected to fail. Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Acked-by: Lucas Bates <lucasb@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-11selftests: forwarding: mirror_gre_nh: Unset rp_filter on host VRFPetr Machata
The mirrored packets arrive at $h3 encapsulated in GRE/IPv4, with IP address from 192.0.2.128/28 network. However the interface is configured as a member of 192.0.2.160/28 and there's no route directing traffic from the former network through that interface. Correspondingly, the RP filter on the VRF rejects it. Therefore turn off the VRF's RP filter. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-11bpf: fix panic due to oob in bpf_prog_test_run_skbDaniel Borkmann
sykzaller triggered several panics similar to the below: [...] [ 248.851531] BUG: KASAN: use-after-free in _copy_to_user+0x5c/0x90 [ 248.857656] Read of size 985 at addr ffff8808017ffff2 by task a.out/1425 [...] [ 248.865902] CPU: 1 PID: 1425 Comm: a.out Not tainted 4.18.0-rc4+ #13 [ 248.865903] Hardware name: Supermicro SYS-5039MS-H12TRF/X11SSE-F, BIOS 2.1a 03/08/2018 [ 248.865905] Call Trace: [ 248.865910] dump_stack+0xd6/0x185 [ 248.865911] ? show_regs_print_info+0xb/0xb [ 248.865913] ? printk+0x9c/0xc3 [ 248.865915] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 248.865919] print_address_description+0x6f/0x270 [ 248.865920] kasan_report+0x25b/0x380 [ 248.865922] ? _copy_to_user+0x5c/0x90 [ 248.865924] check_memory_region+0x137/0x190 [ 248.865925] kasan_check_read+0x11/0x20 [ 248.865927] _copy_to_user+0x5c/0x90 [ 248.865930] bpf_test_finish.isra.8+0x4f/0xc0 [ 248.865932] bpf_prog_test_run_skb+0x6a0/0xba0 [...] After scrubbing the BPF prog a bit from the noise, turns out it called bpf_skb_change_head() for the lwt_xmit prog with headroom of 2. Nothing wrong in that, however, this was run with repeat >> 0 in bpf_prog_test_run_skb() and the same skb thus keeps changing until the pskb_expand_head() called from skb_cow() keeps bailing out in atomic alloc context with -ENOMEM. So upon return we'll basically have 0 headroom left yet blindly do the __skb_push() of 14 bytes and keep copying data from there in bpf_test_finish() out of bounds. Fix to check if we have enough headroom and if pskb_expand_head() fails, bail out with error. Another bug independent of this fix (but related in triggering above) is that BPF_PROG_TEST_RUN should be reworked to reset the skb/xdp buffer to it's original state from input as otherwise repeating the same test in a loop won't work for benchmarking when underlying input buffer is getting changed by the prog each time and reused for the next run leading to unexpected results. Fixes: 1cf1cae963c2 ("bpf: introduce BPF_PROG_TEST_RUN command") Reported-by: syzbot+709412e651e55ed96498@syzkaller.appspotmail.com Reported-by: syzbot+54f39d6ab58f39720a55@syzkaller.appspotmail.com Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-07-11selftests/bpf: add Error: prefix in check_extack helperJakub Kicinski
Currently the test only checks errors, not warnings, so save typing and prefix the extack messages with "Error:" inside the check helper. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-11selftests/bpf: remove duplicated word from test offloadsJakub Kicinski
Trivial removal of duplicated "mode" in error message. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-10selftests: forwarding: mirror_lib: Tighten up VLAN capturePetr Machata
The function do_test_span_vlan_dir_ips() is used for testing whether mirrored packets are VLAN-encapsulated. But since it only considers VLAN encapsulation, it may end up matching unmirrored ARP traffic as well. One consequence is a rare failure of mirror_gre_vlan_bridge_1q's test_gretap_untagged_egress. Decreasing ping cadence in mirror_test() makes the problem easily reproducible. Therefore tighten up the match criterion to only count those 802.1q packets where the next header is IP. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-10rseq/selftests: cleanup: Update comment above rseq_prepare_unloadMathieu Desnoyers
rseq as it was merged does not have rseq_finish_*() in the user-space selftests anymore. Update the rseq_prepare_unload() helper comment to adapt to this reality. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-api@vger.kernel.org Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Watson <davejwatson@fb.com> Cc: Paul Turner <pjt@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Chris Lameter <cl@linux.com> Cc: Ben Maurer <bmaurer@fb.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Joel Fernandes <joelaf@google.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Link: https://lkml.kernel.org/r/20180709195155.7654-7-mathieu.desnoyers@efficios.com
2018-07-10rseq: uapi: Declare rseq_cs field as union, update includesMathieu Desnoyers
Declaring the rseq_cs field as a union between __u64 and two __u32 allows both 32-bit and 64-bit kernels to read the full __u64, and therefore validate that a 32-bit user-space cleared the upper 32 bits, thus ensuring a consistent behavior between native 32-bit kernels and 32-bit compat tasks on 64-bit kernels. Check that the rseq_cs value read is < TASK_SIZE. The asm/byteorder.h header needs to be included by rseq.h, now that it is not using linux/types_32_64.h anymore. Considering that only __32 and __u64 types are declared in linux/rseq.h, the linux/types.h header should always be included for both kernel and user-space code: including stdint.h is just for u64 and u32, which are not used in this header at all. Use copy_from_user()/clear_user() to interact with a 64-bit field, because arm32 does not implement 64-bit __get_user, and ppc32 does not 64-bit get_user. Considering that the rseq_cs pointer does not need to be loaded/stored with single-copy atomicity from the kernel anymore, we can simply use copy_from_user()/clear_user(). Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-api@vger.kernel.org Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Watson <davejwatson@fb.com> Cc: Paul Turner <pjt@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Chris Lameter <cl@linux.com> Cc: Ben Maurer <bmaurer@fb.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Joel Fernandes <joelaf@google.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Link: https://lkml.kernel.org/r/20180709195155.7654-5-mathieu.desnoyers@efficios.com
2018-07-07selftests: mlxsw: Add mlxsw-specific test for mirror to gretapPetr Machata
Test several aspects of offloading mirror to gretap and ip6gretap netdevices that are specific to mlxsw, such as requirements for TTL and TOS values. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-07selftests: forwarding: Allow importing dependent librariesPetr Machata
The next patch introduces a new mlxsw-specific test that uses mirror_gre_lib.sh and mirror_gre_topo_lib.sh. However when sourcing their own deps, these libraries assume that the test that's running is in the same directory. That's not the case for driver-specific tests. So change the libraries to source their deps through $relative_path. That variable is set up by lib.sh, which should be imported by the test in question in any case. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04selftests: forwarding: test for bridge port isolationNikolay Aleksandrov
This test checks if the bridge port isolation feature works as expected by performing ping/ping6 tests between hosts that are isolated (should not work) and between an isolated and non-isolated hosts (should work). Same test is performed for flooding from and to isolated and non-isolated ports. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04selftests: forwarding: lib: extract ping and ping6 so they can be reusedNikolay Aleksandrov
Extract ping and ping6 command execution so the return value can be checked by the caller, this is needed for port isolation tests that are intended to fail. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04net/ipv6: Revert attempt to simplify route replace and appendDavid Ahern
NetworkManager likes to manage linklocal prefix routes and does so with the NLM_F_APPEND flag, breaking attempts to simplify the IPv6 route code and by extension enable multipath routes with device only nexthops. Revert f34436a43092 and these followup patches: 6eba08c3626b ("ipv6: Only emit append events for appended routes"). ce45bded6435 ("mlxsw: spectrum_router: Align with new route replace logic") 53b562df8c20 ("mlxsw: spectrum_router: Allow appending to dev-only routes") Update the fib_tests cases to reflect the old behavior. Fixes: f34436a43092 ("net/ipv6: Simplify route replace and appending into multipath route") Signed-off-by: David Ahern <dsahern@gmail.com>
2018-07-04selftests: forwarding: Test mirror-to-gretap w/ UL 802.1qPetr Machata
Test for "tc action mirred egress mirror" that mirrors to gretap when the underlay route points at a VLAN-aware bridge (802.1q). Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04selftests: forwarding: Test mirror-to-gretap w/ UL 802.1dPetr Machata
Test for "tc action mirred egress mirror" that mirrors to gretap when the underlay route points at a VLAN-unaware bridge (802.1d). Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-07-03 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Various improvements to bpftool and libbpf, that is, bpftool build speed improvements, missing BPF program types added for detection by section name, ability to load programs from '.text' section is made to work again, and better bash completion handling, from Jakub. 2) Improvements to nfp JIT's map read handling which allows for optimizing memcpy from map to packet, from Jiong. 3) New BPF sample is added which demonstrates XDP in combination with bpf_perf_event_output() helper to sample packets on all CPUs, from Toke. 4) Add a new BPF kselftest case for tracking connect(2) BPF hooks infrastructure in combination with TFO, from Andrey. 5) Extend the XDP/BPF xdp_rxq_info sample code with a cmdline option to read payload from packet data in order to use it for benchmarking. Also for '--action XDP_TX' option implement swapping of MAC addresses to avoid drops on some hardware seen during testing, from Jesper. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-03Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Simple overlapping changes in stmmac driver. Adjust skb_gro_flush_final_remcsum function signature to make GRO list changes in net-next, as per Stephen Rothwell's example merge resolution. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Verify netlink attributes properly in nf_queue, from Eric Dumazet. 2) Need to bump memory lock rlimit for test_sockmap bpf test, from Yonghong Song. 3) Fix VLAN handling in lan78xx driver, from Dave Stevenson. 4) Fix uninitialized read in nf_log, from Jann Horn. 5) Fix raw command length parsing in mlx5, from Alex Vesker. 6) Cleanup loopback RDS connections upon netns deletion, from Sowmini Varadhan. 7) Fix regressions in FIB rule matching during create, from Jason A. Donenfeld and Roopa Prabhu. 8) Fix mpls ether type detection in nfp, from Pieter Jansen van Vuuren. 9) More bpfilter build fixes/adjustments from Masahiro Yamada. 10) Fix XDP_{TX,REDIRECT} flushing in various drivers, from Jesper Dangaard Brouer. 11) fib_tests.sh file permissions were broken, from Shuah Khan. 12) Make sure BH/preemption is disabled in data path of mac80211, from Denis Kenzior. 13) Don't ignore nla_parse_nested() return values in nl80211, from Johannes berg. 14) Properly account sock objects ot kmemcg, from Shakeel Butt. 15) Adjustments to setting bpf program permissions to read-only, from Daniel Borkmann. 16) TCP Fast Open key endianness was broken, it always took on the host endiannness. Whoops. Explicitly make it little endian. From Yuching Cheng. 17) Fix prefix route setting for link local addresses in ipv6, from David Ahern. 18) Potential Spectre v1 in zatm driver, from Gustavo A. R. Silva. 19) Various bpf sockmap fixes, from John Fastabend. 20) Use after free for GRO with ESP, from Sabrina Dubroca. 21) Passing bogus flags to crypto_alloc_shash() in ipv6 SR code, from Eric Biggers. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits) qede: Adverstise software timestamp caps when PHC is not available. qed: Fix use of incorrect size in memcpy call. qed: Fix setting of incorrect eswitch mode. qed: Limit msix vectors in kdump kernel to the minimum required count. ipvlan: call dev_change_flags when ipvlan mode is reset ipv6: sr: fix passing wrong flags to crypto_alloc_shash() net: fix use-after-free in GRO with ESP tcp: prevent bogus FRTO undos with non-SACK flows bpf: sockhash, add release routine bpf: sockhash fix omitted bucket lock in sock_close bpf: sockmap, fix smap_list_map_remove when psock is in many maps bpf: sockmap, fix crash when ipv6 sock is added net: fib_rules: bring back rule_exists to match rule during add hv_netvsc: split sub-channel setup into async and sync net: use dev_change_tx_queue_len() for SIOCSIFTXQLEN atm: zatm: Fix potential Spectre v1 s390/qeth: consistently re-enable device features s390/qeth: don't clobber buffer on async TX completion s390/qeth: avoid using is_multicast_ether_addr_64bits on (u8 *)[6] s390/qeth: fix race when setting MAC address ...
2018-07-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf 2018-07-01 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) A bpf_fib_lookup() helper fix to change the API before freeze to return an encoding of the FIB lookup result and return the nexthop device index in the params struct (instead of device index as return code that we had before), from David. 2) Various BPF JIT fixes to address syzkaller fallout, that is, do not reject progs when set_memory_*() fails since it could still be RO. Also arm32 JIT was not using bpf_jit_binary_lock_ro() API which was an issue, and a memory leak in s390 JIT found during review, from Daniel. 3) Multiple fixes for sockmap/hash to address most of the syzkaller triggered bugs. Usage with IPv6 was crashing, a GPF in bpf_tcp_close(), a missing sock_map_release() routine to hook up to callbacks, and a fix for an omitted bucket lock in sock_close(), from John. 4) Two bpftool fixes to remove duplicated error message on program load, and another one to close the libbpf object after program load. One additional fix for nfp driver's BPF offload to avoid stopping offload completely if replace of program failed, from Jakub. 5) Couple of BPF selftest fixes that bail out in some of the test scripts if the user does not have the right privileges, from Jeffrin. 6) Fixes in test_bpf for s390 when CONFIG_BPF_JIT_ALWAYS_ON is set where we need to set the flag that some of the test cases are expected to fail, from Kleber. 7) Fix to detangle BPF_LIRC_MODE2 dependency from CONFIG_CGROUP_BPF since it has no relation to it and lirc2 users often have configs without cgroups enabled and thus would not be able to use it, from Sean. 8) Fix a selftest failure in sockmap by removing a useless setrlimit() call that would set a too low limit where at the same time we are already including bpf_rlimit.h that does the job, from Yonghong. 9) Fix BPF selftest config with missing missing NET_SCHED, from Anders. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30tools/testing/nvdimm: advertise a write cache for nfit_testVishal Verma
Commit 546eb0317cfa "libnvdimm, pmem: Do not flush power-fail protected CPU caches" fixed the write_cache detection to correctly show the lack of a write cache based on the platform capabilities described in the ACPI NFIT. The nfit_test unit tests expected a write cache to be present, so change the nfit test namespaces to only advertise a persistence domain limited to the memory controller. This allows the kernel to show a write_cache attribute, and the test behaviour remains unchanged. Signed-off-by: Vishal Verma <vishal.l.verma@intel.com> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>