- 03 6月, 2018 8 次提交
-
-
由 Daniel Borkmann 提交于
While some of the BPF map lookup helpers provide a ->map_gen_lookup() callback for inlining the map lookup altogether it is not available for every map, so the remaining ones have to call bpf_map_lookup_elem() helper which does a dispatch to map->ops->map_lookup_elem(). In times of retpolines, this will control and trap speculative execution rather than letting it do its work for the indirect call and will therefore cause a slowdown. Likewise, bpf_map_update_elem() and bpf_map_delete_elem() do not have an inlined version and need to call into their map->ops->map_update_elem() resp. map->ops->map_delete_elem() handlers. Before: # bpftool prog dump xlated id 1 0: (bf) r2 = r10 1: (07) r2 += -8 2: (7a) *(u64 *)(r2 +0) = 0 3: (18) r1 = map[id:1] 5: (85) call __htab_map_lookup_elem#232656 6: (15) if r0 == 0x0 goto pc+4 7: (71) r1 = *(u8 *)(r0 +35) 8: (55) if r1 != 0x0 goto pc+1 9: (72) *(u8 *)(r0 +35) = 1 10: (07) r0 += 56 11: (15) if r0 == 0x0 goto pc+4 12: (bf) r2 = r0 13: (18) r1 = map[id:1] 15: (85) call bpf_map_delete_elem#215008 <-- indirect call via 16: (95) exit helper After: # bpftool prog dump xlated id 1 0: (bf) r2 = r10 1: (07) r2 += -8 2: (7a) *(u64 *)(r2 +0) = 0 3: (18) r1 = map[id:1] 5: (85) call __htab_map_lookup_elem#233328 6: (15) if r0 == 0x0 goto pc+4 7: (71) r1 = *(u8 *)(r0 +35) 8: (55) if r1 != 0x0 goto pc+1 9: (72) *(u8 *)(r0 +35) = 1 10: (07) r0 += 56 11: (15) if r0 == 0x0 goto pc+4 12: (bf) r2 = r0 13: (18) r1 = map[id:1] 15: (85) call htab_lru_map_delete_elem#238240 <-- direct call 16: (95) exit In all three lookup/update/delete cases however we can use the actual address of the map callback directly if we find that there's only a single path with a map pointer leading to the helper call, meaning when the map pointer has not been poisoned from verifier side. Example code can be seen above for the delete case. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Daniel Borkmann 提交于
Its trivial and straight forward to expose it for scripts that can then use it along with bpftool in order to inspect an individual application's used maps and progs. Right now we dump some basic information in the fdinfo file but with the help of the map/prog id full introspection becomes possible now. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NSong Liu <songliubraving@fb.com> Acked-by: NJesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Daniel Borkmann 提交于
Stating 'proprietary program' in the error is just silly since it can also be a different open source license than that which is just not compatible. Reference: https://twitter.com/majek04/status/998531268039102465Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NJesper Dangaard Brouer <brouer@redhat.com> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Daniel Borkmann 提交于
We have one triggering on eBPF but lets also add a cBPF example to make sure we keep tracking them. Also add anther cBPF test running max number of MSH ops. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Daniel Borkmann 提交于
Add several test cases where the same or different map pointers originate from different paths in the program and execute a map lookup or tail call at a common location. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Alexei Starovoitov 提交于
Martin KaFai Lau says: ==================== ==================== Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Martin KaFai Lau 提交于
The t->type in BTF_KIND_FWD is not used. It must be 0. This patch ensures that and also adds a test case in test_btf.c Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Martin KaFai Lau 提交于
This patch ensures array's t->size is 0. The array size is decided by its individual elem's size and the number of elements. Hence, t->size is not used and it must be 0. A test case is added to test_btf.c Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
- 02 6月, 2018 6 次提交
-
-
由 Daniel Borkmann 提交于
Prashant Bhole says: ==================== test_sockmap was originally written only to exercise kernel code paths, so there was no strict checking of errors. When the code was modified to run as selftests, due to lack of error handling it was not able to detect test failures. In order to improve, this series fixes error handling, test run time and data verification. Also slightly improved test output by printing parameter values (cork, apply, start, end) so that parameters for all tests are displayed. Changes in v4: - patch1: Ignore RX timoute error only for corked tests - patch3: Setting different timeout for corked tests and reduce run time by reducing number of iterations in some tests Changes in v3: - Skipped error checking for corked tests ==================== Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Prashant Bhole 提交于
Print values of test options like apply, cork, start, end so that individual failed tests can be identified for manual run Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Signed-off-by: NPrashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Prashant Bhole 提交于
When data verification is enabled, some tests fail because verification is done incorrectly. Following changes fix it. - Identify the size of data block to be verified - Reset verification counter when data block size is reached - Fixed the value printed in case of verfication failure Fixes: 16962b24 ("bpf: sockmap, add selftests") Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Signed-off-by: NPrashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Prashant Bhole 提交于
Currently 10us delay is too low for many tests to succeed. It needs to be increased. Also, many corked tests are expected to hit rx timeout irrespective of timeout value. - This patch sets 1000usec timeout value for corked tests because less than that causes broken-pipe error in tx thread. Also sets 1 second timeout for all other tests because less than that results in RX timeout - tests with apply=1 and higher number of iterations were taking lot of time. This patch reduces test run time by reducing iterations. real 0m12.968s user 0m0.219s sys 0m14.337s Fixes: a18fda1a ("bpf: reduce runtime of test_sockmap tests") Signed-off-by: NPrashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Prashant Bhole 提交于
In case of selftest mode, temporary cgroup environment is created but cgroup is not joined. It causes test failures. Fixed by joining the cgroup Fixes: 16962b24 ("bpf: sockmap, add selftests") Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Signed-off-by: NPrashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Prashant Bhole 提交于
Test failures are not identified because exit code of RX/TX threads is not checked. Also threads are not returning correct exit code. - Return exit code from threads depending on test execution status - In main thread, check the exit code of RX/TX threads - Skip error checking for corked tests as they are expected to timeout Fixes: 16962b24 ("bpf: sockmap, add selftests") Signed-off-by: NPrashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
- 31 5月, 2018 2 次提交
-
-
由 David Ahern 提交于
Update bpf_fib_lookup to return -EAFNOSUPPORT for unsupported address families. Allows userspace to probe for support as more are added (e.g., AF_MPLS). Signed-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
由 Colin Ian King 提交于
The assignment dev = dev is redundant and should be removed. Detected by CoverityScan, CID#1469486 ("Evaluation order violation") Signed-off-by: NColin Ian King <colin.king@canonical.com> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
-
- 30 5月, 2018 9 次提交
-
-
由 Andrey Ignatov 提交于
Add support for recently added BPF_CGROUP_UDP4_SENDMSG and BPF_CGROUP_UDP6_SENDMSG attach types to bpftool, update documentation and bash completion. Signed-off-by: NAndrey Ignatov <rdna@fb.com> Reviewed-by: NJakub Kicinski <jakub.kicinski@netronome.com> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Daniel Borkmann 提交于
Sean Young says: ==================== The kernel IR decoders (drivers/media/rc/ir-*-decoder.c) support the most widely used IR protocols, but there are many protocols which are not supported[1]. For example, the lirc-remotes[2] repo has over 2700 remotes, many of which are not supported by rc-core. There is a "long tail" of unsupported IR protocols, for which lircd is need to decode the IR . IR encoding is done in such a way that some simple circuit can decode it; therefore, bpf is ideal. In order to support all these protocols, here we have bpf based IR decoding. The idea is that user-space can define a decoder in bpf, attach it to the rc device through the lirc chardev. Separate work is underway to extend ir-keytable to have an extensive library of bpf-based decoders, and a much expanded library of rc keymaps. Another future application would be to compile IRP[3] to a IR BPF program, and so support virtually every remote without having to write a decoder for each. It might also be possible to support non-button devices such as analog directional pads or air conditioning remote controls and decode the target temperature in bpf, and pass that to an input device. [1] http://www.hifi-remote.com/wiki/index.php?title=DecodeIR [2] https://sourceforge.net/p/lirc-remotes/code/ci/master/tree/remotes/ [3] http://www.hifi-remote.com/wiki/index.php?title=IRP_Notation Changes since v4: - Renamed rc_dev_bpf_{attach,detach,query} to lirc_bpf_{attach,detach,query} - Fixed error path in lirc_bpf_query - Rebased on bpf-next Changes since v3: - Implemented review comments from Quentin Monnet and Y Song (thanks!) - More helpful and better formatted bpf helper documentation - Changed back to bpf_prog_array rather than open-coded implementation - scancodes can be 64 bit - bpf gets passed values in microseconds, not nanoseconds. microseconds is more than than enough (IR receivers support carriers upto 70kHz, at which point a single period is already 14 microseconds). Also, this makes it much more consistent with lirc mode2. - Since it looks much more like lirc mode2, rename the program type to BPF_PROG_TYPE_LIRC_MODE2. - Rebased on bpf-next Changes since v2: - Fixed locking issues - Improved self-test to cover more cases - Rebased on bpf-next again Changes since v1: - Code review comments from Y Song <ys114321@gmail.com> and Randy Dunlap <rdunlap@infradead.org> - Re-wrote sample bpf to be selftest - Renamed RAWIR_DECODER -> RAWIR_EVENT (Kconfig, context, bpf prog type) - Rebase on bpf-next - Introduced bpf_rawir_event context structure with simpler access checking ==================== Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Sean Young 提交于
This is simple test over rc-loopback. Acked-by: NYonghong Song <yhs@fb.com> Signed-off-by: NSean Young <sean@mess.org> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Sean Young 提交于
Add support for BPF_PROG_LIRC_MODE2. This type of BPF program can call rc_keydown() to reported decoded IR scancodes, or rc_repeat() to report that the last key should be repeated. The bpf program can be attached to using the bpf(BPF_PROG_ATTACH) syscall; the target_fd must be the /dev/lircN device. Acked-by: NYonghong Song <yhs@fb.com> Signed-off-by: NSean Young <sean@mess.org> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Sean Young 提交于
This makes is it possible for bpf prog detach to return -ENOENT. Acked-by: NYonghong Song <yhs@fb.com> Signed-off-by: NSean Young <sean@mess.org> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 David Ahern 提交于
Verify flags argument contains only known flags. Allows programs to probe for support as more are added. Signed-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 David Ahern 提交于
MPLS support will not be submitted this dev cycle, but in working on it I do see a few changes are needed to the API. For now, drop mpls from the API. Since the fields in question are unions, the mpls fields can be added back later without affecting the uapi. Signed-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 YueHaibing 提交于
The local variable is only used while CONFIG_IPV6 enabled net/core/filter.c: In function ‘sk_msg_convert_ctx_access’: net/core/filter.c:6489:6: warning: unused variable ‘off’ [-Wunused-variable] int off; ^ This puts it into #ifdef. Fixes: 303def35 ("bpf: allow sk_msg programs to read sock fields") Signed-off-by: NYueHaibing <yuehaibing@huawei.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Quentin Monnet 提交于
These are minor edits for the eBPF helpers documentation in include/uapi/linux/bpf.h. The main fix consists in removing "BPF_FIB_LOOKUP_", because it ends with a non-escaped underscore that gets interpreted by rst2man and produces the following message in the resulting manual page: DOCUTILS SYSTEM MESSAGES System Message: ERROR/3 (/tmp/bpf-helpers.rst:, line 1514) Unknown target name: "bpf_fib_lookup". Other edits consist in: - Improving formatting for flag values for "bpf_fib_lookup()" helper. - Emphasising a parameter name in description of the return value for "bpf_get_stack()" helper. - Removing unnecessary blank lines between "Description" and "Return" sections for the few helpers that would use it, for consistency. Signed-off-by: NQuentin Monnet <quentin.monnet@netronome.com> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
- 28 5月, 2018 11 次提交
-
-
由 Daniel Borkmann 提交于
Andrey Ignatov says: ==================== v3 -> v4: * handle static key correctly for CONFIG_CGROUP_BPF=n. v2 -> v3: * place BPF logic under static key in udp_sendmsg, udpv6_sendmsg; * rebase. v1 -> v2: * return ENOTSUPP if bpf_prog rewrote IPv6-only with IPv4-mapped IPv6; * add test for IPv4-mapped IPv6 use-case; * fix build for CONFIG_CGROUP_BPF=n; * rebase. This path set adds BPF hooks for sys_sendmsg similar to existing hooks for sys_bind and sys_connect. Hooks allow to override source IP (including the case when it's set via cmsg(3)) and destination IP:port for unconnected UDP (slow path). TCP and connected UDP (fast path) are not affected. This makes UDP support complete: connected UDP is handled by sys_connect hooks, unconnected by sys_sendmsg ones. Similar to sys_connect hooks, sys_sendmsg ones can be used to make system calls such as sendmsg(2) and sendto(2) return EPERM. Please see patch 0002 for more details. ==================== Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Andrey Ignatov 提交于
Add selftest for BPF_CGROUP_UDP4_SENDMSG and BPF_CGROUP_UDP6_SENDMSG attach types. Try to sendmsg(2) to specific IP:port and test that: * source IP is overridden as expected. * remote IP:port pair is overridden as expected; Both UDPv4 and UDPv6 are tested. Output: # test_sock_addr.sh 2>/dev/null Wait for testing IPv4/IPv6 to become available ... OK ... pre-existing test-cases skipped ... Test case: sendmsg4: load prog with wrong expected attach type .. [PASS] Test case: sendmsg4: attach prog with wrong attach type .. [PASS] Test case: sendmsg4: rewrite IP & port (asm) .. [PASS] Test case: sendmsg4: rewrite IP & port (C) .. [PASS] Test case: sendmsg4: deny call .. [PASS] Test case: sendmsg6: load prog with wrong expected attach type .. [PASS] Test case: sendmsg6: attach prog with wrong attach type .. [PASS] Test case: sendmsg6: rewrite IP & port (asm) .. [PASS] Test case: sendmsg6: rewrite IP & port (C) .. [PASS] Test case: sendmsg6: IPv4-mapped IPv6 .. [PASS] Test case: sendmsg6: deny call .. [PASS] Summary: 27 PASSED, 0 FAILED Signed-off-by: NAndrey Ignatov <rdna@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Andrey Ignatov 提交于
test_sock_addr was not easy to extend since it was focused on sys_bind and sys_connect quite a bit. Reorganized it so that it'll be easier to cover new test-cases for `BPF_PROG_TYPE_CGROUP_SOCK_ADDR`: - decouple test-cases so that only one BPF prog is tested at a time; - check programmatically that local IP:port for sys_bind, source IP and destination IP:port for sys_connect are rewritten property by tested BPF programs. The output of new version: # test_sock_addr.sh 2>/dev/null Wait for testing IPv4/IPv6 to become available ... OK Test case: bind4: load prog with wrong expected attach type .. [PASS] Test case: bind4: attach prog with wrong attach type .. [PASS] Test case: bind4: rewrite IP & TCP port in .. [PASS] Test case: bind4: rewrite IP & UDP port in .. [PASS] Test case: bind6: load prog with wrong expected attach type .. [PASS] Test case: bind6: attach prog with wrong attach type .. [PASS] Test case: bind6: rewrite IP & TCP port in .. [PASS] Test case: bind6: rewrite IP & UDP port in .. [PASS] Test case: connect4: load prog with wrong expected attach type .. [PASS] Test case: connect4: attach prog with wrong attach type .. [PASS] Test case: connect4: rewrite IP & TCP port .. [PASS] Test case: connect4: rewrite IP & UDP port .. [PASS] Test case: connect6: load prog with wrong expected attach type .. [PASS] Test case: connect6: attach prog with wrong attach type .. [PASS] Test case: connect6: rewrite IP & TCP port .. [PASS] Test case: connect6: rewrite IP & UDP port .. [PASS] Summary: 16 PASSED, 0 FAILED (stderr contains errors from libbpf when testing load/attach with invalid arguments) Signed-off-by: NAndrey Ignatov <rdna@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Andrey Ignatov 提交于
libbpf can guess prog type and expected attach type based on section name. Add hints for "cgroup/sendmsg4" and "cgroup/sendmsg6" section names. Signed-off-by: NAndrey Ignatov <rdna@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Andrey Ignatov 提交于
Sync new `BPF_CGROUP_UDP4_SENDMSG` and `BPF_CGROUP_UDP6_SENDMSG` attach types to tools/. Signed-off-by: NAndrey Ignatov <rdna@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Andrey Ignatov 提交于
In addition to already existing BPF hooks for sys_bind and sys_connect, the patch provides new hooks for sys_sendmsg. It leverages existing BPF program type `BPF_PROG_TYPE_CGROUP_SOCK_ADDR` that provides access to socket itlself (properties like family, type, protocol) and user-passed `struct sockaddr *` so that BPF program can override destination IP and port for system calls such as sendto(2) or sendmsg(2) and/or assign source IP to the socket. The hooks are implemented as two new attach types: `BPF_CGROUP_UDP4_SENDMSG` and `BPF_CGROUP_UDP6_SENDMSG` for UDPv4 and UDPv6 correspondingly. UDPv4 and UDPv6 separate attach types for same reason as sys_bind and sys_connect hooks, i.e. to prevent reading from / writing to e.g. user_ip6 fields when user passes sockaddr_in since it'd be out-of-bound. The difference with already existing hooks is sys_sendmsg are implemented only for unconnected UDP. For TCP it doesn't make sense to change user-provided `struct sockaddr *` at sendto(2)/sendmsg(2) time since socket either was already connected and has source/destination set or wasn't connected and call to sendto(2)/sendmsg(2) would lead to ENOTCONN anyway. Connected UDP is already handled by sys_connect hooks that can override source/destination at connect time and use fast-path later, i.e. these hooks don't affect UDP fast-path. Rewriting source IP is implemented differently than that in sys_connect hooks. When sys_sendmsg is used with unconnected UDP it doesn't work to just bind socket to desired local IP address since source IP can be set on per-packet basis by using ancillary data (cmsg(3)). So no matter if socket is bound or not, source IP has to be rewritten on every call to sys_sendmsg. To do so two new fields are added to UAPI `struct bpf_sock_addr`; * `msg_src_ip4` to set source IPv4 for UDPv4; * `msg_src_ip6` to set source IPv6 for UDPv6. Signed-off-by: NAndrey Ignatov <rdna@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Andrey Ignatov 提交于
Static key is used to enable/disable cgroup-bpf related code paths at run time. Though it's not defined when cgroup-bpf is disabled at compile time, i.e. CONFIG_CGROUP_BPF=n, and if some code wants to use it, it has to do this: #ifdef CONFIG_CGROUP_BPF if (cgroup_bpf_enabled) { /* ... some work ... */ } #endif This code can be simplified by setting cgroup_bpf_enabled to 0 for CONFIG_CGROUP_BPF=n case: if (cgroup_bpf_enabled) { /* ... some work ... */ } And it aligns well with existing BPF_CGROUP_RUN_PROG_* macros that defined for both states of CONFIG_CGROUP_BPF. Signed-off-by: NAndrey Ignatov <rdna@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Mathieu Xhonneux 提交于
Previous patch "selftests/bpf: test for seg6local End.BPF action" lacks some UAPI headers in tools/. clang -I. -I./include/uapi -I../../../include/uapi -idirafter /usr/local/include -idirafter /data/users/yhs/work/llvm/build/install/lib/clang/7.0.0/include -idirafter /usr/include -Wno-compare-distinct-pointer-types \ -O2 -target bpf -emit-llvm -c test_lwt_seg6local.c -o - | \ llc -march=bpf -mcpu=generic -filetype=obj -o [...]/net-next/tools/testing/selftests/bpf/test_lwt_seg6local.o test_lwt_seg6local.c:4:10: fatal error: 'linux/seg6_local.h' file not found ^~~~~~~~~~~~~~~~~~~~ 1 error generated. make: Leaving directory `/data/users/yhs/work/net-next/tools/testing/selftests/bpf' v2: moving the headers to tools/include/uapi/. Reported-by: NY Song <ys114321@gmail.com> Signed-off-by: NMathieu Xhonneux <m.xhonneux@gmail.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Arnd Bergmann 提交于
The stack_map_get_build_id_offset() function is too long for gcc to track whether 'work' may or may not be initialized at the end of it, leading to a false-positive warning: kernel/bpf/stackmap.c: In function 'stack_map_get_build_id_offset': kernel/bpf/stackmap.c:334:13: error: 'work' may be used uninitialized in this function [-Werror=maybe-uninitialized] This removes the 'in_nmi_ctx' flag and uses the state of that variable itself to see if it got initialized. Fixes: bae77c5e ("bpf: enable stackmap with build_id in nmi context") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Arnd Bergmann 提交于
gcc warns about a noreturn function possibly returning in some configurations: kernel/bpf/btf.c: In function 'env_type_is_resolve_sink': kernel/bpf/btf.c:729:1: error: control reaches end of non-void function [-Werror=return-type] Using BUG() instead of BUG_ON() avoids that warning and otherwise does the exact same thing. Fixes: eb3f595d ("bpf: btf: Validate type reference") Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
由 Andrey Ignatov 提交于
install_headers target should contain all headers that are part of libbpf. Add missing btf.h Signed-off-by: NAndrey Ignatov <rdna@fb.com> Acked-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NSong Liu <songliubraving@fb.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
-
- 27 5月, 2018 1 次提交
-
-
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 David S. Miller 提交于
Lots of easy overlapping changes in the confict resolutions here. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 26 5月, 2018 3 次提交
-
-
由 Linus Torvalds 提交于
Merge misc fixes from Andrew Morton: "16 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: kasan: fix memory hotplug during boot kasan: free allocated shadow memory on MEM_CANCEL_ONLINE checkpatch: fix macro argument precedence test init/main.c: include <linux/mem_encrypt.h> kernel/sys.c: fix potential Spectre v1 issue mm/memory_hotplug: fix leftover use of struct page during hotplug proc: fix smaps and meminfo alignment mm: do not warn on offline nodes unless the specific node is explicitly requested mm, memory_hotplug: make has_unmovable_pages more robust mm/kasan: don't vfree() nonexistent vm_area MAINTAINERS: change hugetlbfs maintainer and update files ipc/shm: fix shmat() nil address after round-down when remapping Revert "ipc/shm: Fix shmat mmap nil-page protection" idr: fix invalid ptr dereference on item delete ocfs2: revert "ocfs2/o2hb: check len for bio_add_page() to avoid getting incorrect bio" mm: fix nr_rotate_swap leak in swapon() error case
-
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 Linus Torvalds 提交于
Pull networking fixes from David Miller: "Let's begin the holiday weekend with some networking fixes: 1) Whoops need to restrict cfg80211 wiphy names even more to 64 bytes. From Eric Biggers. 2) Fix flags being ignored when using kernel_connect() with SCTP, from Xin Long. 3) Use after free in DCCP, from Alexey Kodanev. 4) Need to check rhltable_init() return value in ipmr code, from Eric Dumazet. 5) XDP handling fixes in virtio_net from Jason Wang. 6) Missing RTA_TABLE in rtm_ipv4_policy[], from Roopa Prabhu. 7) Need to use IRQ disabling spinlocks in mlx4_qp_lookup(), from Jack Morgenstein. 8) Prevent out-of-bounds speculation using indexes in BPF, from Daniel Borkmann. 9) Fix regression added by AF_PACKET link layer cure, from Willem de Bruijn. 10) Correct ENIC dma mask, from Govindarajulu Varadarajan. 11) Missing config options for PMTU tests, from Stefano Brivio" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (48 commits) ibmvnic: Fix partial success login retries selftests/net: Add missing config options for PMTU tests mlx4_core: allocate ICM memory in page size chunks enic: set DMA mask to 47 bit ppp: remove the PPPIOCDETACH ioctl ipv4: remove warning in ip_recv_error net : sched: cls_api: deal with egdev path only if needed vhost: synchronize IOTLB message with dev cleanup packet: fix reserve calculation net/mlx5: IPSec, Fix a race between concurrent sandbox QP commands net/mlx5e: When RXFCS is set, add FCS data into checksum calculation bpf: properly enforce index mask to prevent out-of-bounds speculation net/mlx4: Fix irq-unsafe spinlock usage net: phy: broadcom: Fix bcm_write_exp() net: phy: broadcom: Fix auxiliary control register reads net: ipv4: add missing RTA_TABLE to rtm_ipv4_policy net/mlx4: fix spelling mistake: "Inrerface" -> "Interface" and rephrase message ibmvnic: Only do H_EOI for mobility events tuntap: correctly set SOCKWQ_ASYNC_NOSPACE virtio-net: fix leaking page for gso packet during mergeable XDP ...
-
由 David Hildenbrand 提交于
Using module_init() is wrong. E.g. ACPI adds and onlines memory before our memory notifier gets registered. This makes sure that ACPI memory detected during boot up will not result in a kernel crash. Easily reproducible with QEMU, just specify a DIMM when starting up. Link: http://lkml.kernel.org/r/20180522100756.18478-3-david@redhat.com Fixes: 786a8959 ("kasan: disable memory hotplug") Signed-off-by: NDavid Hildenbrand <david@redhat.com> Acked-by: NAndrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-