- 26 5月, 2017 1 次提交
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由 Daniel Borkmann 提交于
This patch adds various verifier test cases: 1) A test case for the pruning issue when tracking alignment is used. 2) Various PTR_TO_MAP_VALUE_OR_NULL tests to make sure pointer arithmetic turns such register into UNKNOWN_VALUE type. 3) Test cases for the special treatment of LD_ABS/LD_IND to make sure verifier doesn't break calling convention here. Latter is needed, since f.e. arm64 JIT uses r1 - r5 for storing temporary data, so they really must be marked as NOT_INIT. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 5月, 2017 1 次提交
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由 Yonghong Song 提交于
Commit 0a5539f6 ("bpf: Provide a linux/types.h override for bpf selftests.") caused a build failure for tools/testing/selftest/bpf because of some missing types: $ make -C tools/testing/selftests/bpf/ ... In file included from /home/yhs/work/net-next/tools/testing/selftests/bpf/test_pkt_access.c:8: ../../../include/uapi/linux/bpf.h:170:3: error: unknown type name '__aligned_u64' __aligned_u64 key; ... /usr/include/linux/swab.h:160:8: error: unknown type name '__always_inline' static __always_inline __u16 __swab16p(const __u16 *p) ... The type __aligned_u64 is defined in linux:include/uapi/linux/types.h. The fix is to copy missing type definition into tools/testing/selftests/bpf/include/uapi/linux/types.h. Adding additional include "string.h" resolves __always_inline issue. Fixes: 0a5539f6 ("bpf: Provide a linux/types.h override for bpf selftests.") Signed-off-by: NYonghong Song <yhs@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 5月, 2017 4 次提交
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由 David S. Miller 提交于
We must accumulate into reg->aux_off rather than use a plain assignment. Add a test for this situation to test_align. Reported-by: NAlexei Starovoitov <ast@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Reported-by: NAlexander Alemayhu <alexander@alemayhu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
We do not want to use the architecture's type.h header when building BPF programs which are always 64-bit. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
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- 03 5月, 2017 2 次提交
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由 Alexei Starovoitov 提交于
-D__x86_64__ workaround was used to make /usr/include/features.h to follow expected path through the system include headers. This is not portable. Instead define dummy stubs.h which is used by 'clang -target bpf' Fixes: 6882804c ("selftests/bpf: add a test for overlapping packet range checks") Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yonghong Song 提交于
With clang/llvm 4.0+, the test case is able to generate the following pattern: .... 440: (b7) r1 = 15 441: (05) goto pc+73 515: (79) r6 = *(u64 *)(r10 -152) 516: (bf) r7 = r10 517: (07) r7 += -112 518: (bf) r2 = r7 519: (0f) r2 += r1 520: (71) r1 = *(u8 *)(r8 +0) 521: (73) *(u8 *)(r2 +45) = r1 .... commit 332270fd ("bpf: enhance verifier to understand stack pointer arithmetic") improved verifier to handle such a pattern. This patch adds a C test case to actually generate such a pattern. A dummy tracepoint interface is used to load the program into the kernel. Signed-off-by: NYonghong Song <yhs@fb.com> Acked-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 5月, 2017 3 次提交
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由 David S. Miller 提交于
This fixes the testcase on big-endian. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
We do not want to include things like stdio.h and friends into eBPF program builds. bpf_util.h is for host compiled programs, so eBPF C-code helpers don't really belong there. Add a new bpf_endian.h as a quick fix for this for now. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 5月, 2017 1 次提交
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由 Yonghong Song 提交于
llvm 4.0 and above generates the code like below: .... 440: (b7) r1 = 15 441: (05) goto pc+73 515: (79) r6 = *(u64 *)(r10 -152) 516: (bf) r7 = r10 517: (07) r7 += -112 518: (bf) r2 = r7 519: (0f) r2 += r1 520: (71) r1 = *(u8 *)(r8 +0) 521: (73) *(u8 *)(r2 +45) = r1 .... and the verifier complains "R2 invalid mem access 'inv'" for insn #521. This is because verifier marks register r2 as unknown value after #519 where r2 is a stack pointer and r1 holds a constant value. Teach verifier to recognize "stack_ptr + imm" and "stack_ptr + reg with const val" as valid stack_ptr with new offset. Signed-off-by: NYonghong Song <yhs@fb.com> Acked-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 4月, 2017 3 次提交
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由 Daniel Borkmann 提交于
To overcome bugs as described and fixed in 89087c45 ("bpf: Fix values type used in test_maps"), provide a generic BPF_DECLARE_PERCPU() and bpf_percpu() accessor macro for all percpu map values used in tests. Declaring variables works as follows (also works for structs): BPF_DECLARE_PERCPU(uint32_t, my_value); They can then be accessed normally as uint32_t type through: bpf_percpu(my_value, <cpu_nr>) For example: bpf_percpu(my_value, 0)++; Implicitly, we make sure that the passed type is allocated and aligned by gcc at least on a 8-byte boundary, so that it works together with the map lookup/update syscall for percpu maps. We use it as a usage example in test_maps, so that others are free to adapt this into their code when necessary. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Daniel Borkmann 提交于
Dave reported that on sparc test_progs generates buggy swapped eth->h_proto protocol comparisons: 10: (15) if r3 == 0xdd86 goto pc+9 R0=imm2,min_value=2,max_value=2 R1=pkt(id=0,off=0,r=14) R2=pkt_end R3=inv R4=pkt(id=0,off=14,r=14) R5=inv56 R10=fp This is due to the unconditional ... #define htons __builtin_bswap16 #define ntohs __builtin_bswap16 ... in test_progs that causes this. Make use of asm/byteorder.h and use __constant_htons() where possible and only perform the bswap16 when on little endian in non-constant case. Fixes: 6882804c ("selftests/bpf: add a test for overlapping packet range checks") Fixes: 37821613 ("selftests/bpf: add l4 load balancer test based on sched_cls") Reported-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Daniel Borkmann 提交于
Add several test cases around ldimm64, fp arithmetic and direct packet access. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 4月, 2017 1 次提交
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由 Teng Qin 提交于
When iterating through a map, we need to find a key that does not exist in the map so map_get_next_key will give us the first key of the map. This often requires a lot of guessing in production systems. This patch makes map_get_next_key return the first key when the key pointer in the parameter is NULL. Signed-off-by: NTeng Qin <qinteng@fb.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 4月, 2017 2 次提交
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由 David Miller 提交于
Maps of per-cpu type have their value element size adjusted to 8 if it is specified smaller during various map operations. This makes test_maps as a 32-bit binary fail, in fact the kernel writes past the end of the value's array on the user's stack. To be quite honest, I think the kernel should reject creation of a per-cpu map that doesn't have a value size of at least 8 if that's what the kernel is going to silently adjust to later. If the user passed something smaller, it is a sizeof() calcualtion based upon the type they will actually use (just like in this testcase code) in later calls to the map operations. Fixes: df570f57 ("samples/bpf: unit test for BPF_MAP_TYPE_PERCPU_ARRAY") Signed-off-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org>
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由 Daniel Borkmann 提交于
Add napi_id access to __sk_buff for socket filter program types, tc program types and other bpf_convert_ctx_access() users. Having access to skb->napi_id is useful for per RX queue listener siloing, f.e. in combination with SO_ATTACH_REUSEPORT_EBPF and when busy polling is used, meaning SO_REUSEPORT enabled listeners can then select the corresponding socket at SYN time already [1]. The skb is marked via skb_mark_napi_id() early in the receive path (e.g., napi_gro_receive()). Currently, sockets can only use SO_INCOMING_NAPI_ID from 6d433902 ("net: Introduce SO_INCOMING_NAPI_ID") as a socket option to look up the NAPI ID associated with the queue for steering, which requires a prior sk_mark_napi_id() after the socket was looked up. Semantics for the __sk_buff napi_id access are similar, meaning if skb->napi_id is < MIN_NAPI_ID (e.g. outgoing packets using sender_cpu), then an invalid napi_id of 0 is returned to the program, otherwise a valid non-zero napi_id. [1] http://netdevconf.org/2.1/slides/apr6/dumazet-BUSY-POLLING-Netdev-2.1.pdfSuggested-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 4月, 2017 3 次提交
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由 Martin KaFai Lau 提交于
After doing map_perf_test with a much bigger BPF_F_NO_COMMON_LRU map, the perf report shows a lot of time spent in rotating the inactive list (i.e. __bpf_lru_list_rotate_inactive): > map_perf_test 32 8 10000 1000000 | awk '{sum += $3}END{print sum}' 19644783 (19M/s) > map_perf_test 32 8 10000000 10000000 | awk '{sum += $3}END{print sum}' 6283930 (6.28M/s) By inactive, it usually means the element is not in cache. Hence, there is a need to tune the PERCPU_NR_SCANS value. This patch finds a better number of elements to scan during each list rotation. The PERCPU_NR_SCANS (which is defined the same as PERCPU_FREE_TARGET) decreases from 16 elements to 4 elements. This change only affects the BPF_F_NO_COMMON_LRU map. The test_lru_dist does not show meaningful difference between 16 and 4. Our production L4 load balancer which uses the LRU map for conntrack-ing also shows little change in cache hit rate. Since both benchmark and production data show no cache-hit difference, PERCPU_NR_SCANS is lowered from 16 to 4. We can consider making it configurable if we find a usecase later that shows another value works better and/or use a different rotation strategy. After this change: > map_perf_test 32 8 10000000 10000000 | awk '{sum += $3}END{print sum}' 9240324 (9.2M/s) i.e. 6.28M/s -> 9.2M/s The test_lru_dist has not shown meaningful difference: > test_lru_dist zipf.100k.a1_01.out 4000 1: nr_misses: 31575 (Before) vs 31566 (After) > test_lru_dist zipf.100k.a0_01.out 40000 1 nr_misses: 67036 (Before) vs 67031 (After) Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Martin KaFai Lau 提交于
This patch does the following cleanup on test_lru_map.c 1) Fix indentation (Replace spaces by tabs) 2) Remove redundant BPF_F_NO_COMMON_LRU test 3) Simplify some comments Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Martin KaFai Lau 提交于
test_lru_sanity3 is not applicable to BPF_F_NO_COMMON_LRU. It just happens to work when PERCPU_FREE_TARGET == 16. This patch: 1) Disable test_lru_sanity3 for BPF_F_NO_COMMON_LRU 2) Add test_lru_sanity6 to test list rotation for the BPF_F_NO_COMMON_LRU map. Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 4月, 2017 1 次提交
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由 Alexei Starovoitov 提交于
fix artifact of merge resolution Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 4月, 2017 4 次提交
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由 Alexei Starovoitov 提交于
this l4lb demo is a comprehensive test case for LLVM codegen and kernel verifier. It's using fully inlined jhash(), complex packet parsing and multiple map lookups of different types to stress llvm and verifier. The map sizes, map population and test vectors are artificial to exercise different paths through the bpf program. Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Alexei Starovoitov 提交于
add C test for xdp_adjust_head(), packet rewrite and map lookups Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Alexei Starovoitov 提交于
add simple C test case for llvm and verifier range check fix from commit b1977682 ("bpf: improve verifier packet range checks") Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Daniel Borkmann 提交于
Add a couple of test cases, for example, probing for xadd on a spilled pointer to packet and map_value_adj register, various other map_value_adj tests including the unaligned load/store, and trying out pointer arithmetic on map_value_adj register itself. For the unaligned load/store, we need to figure out whether the architecture has efficient unaligned access and need to mark affected tests accordingly. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 3月, 2017 1 次提交
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由 Alexei Starovoitov 提交于
llvm can optimize the 'if (ptr > data_end)' checks to be in the order slightly different than the original C code which will confuse verifier. Like: if (ptr + 16 > data_end) return TC_ACT_SHOT; // may be followed by if (ptr + 14 > data_end) return TC_ACT_SHOT; while llvm can see that 'ptr' is valid for all 16 bytes, the verifier could not. Fix verifier logic to account for such case and add a test. Reported-by: NHuapeng Zhou <hzhou@fb.com> Fixes: 969bf05e ("bpf: direct packet access") Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 3月, 2017 2 次提交
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由 Martin KaFai Lau 提交于
Test cases for array of maps and hash of maps. Signed-off-by: NMartin KaFai Lau <kafai@fb.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Alexei Starovoitov 提交于
In both kmalloc and prealloc mode the bpf_map_update_elem() is using per-cpu extra_elems to do atomic update when the map is full. There are two issues with it. The logic can be misused, since it allows max_entries+num_cpus elements to be present in the map. And alloc_extra_elems() at map creation time can fail percpu alloc for large map values with a warn: WARNING: CPU: 3 PID: 2752 at ../mm/percpu.c:892 pcpu_alloc+0x119/0xa60 illegal size (32824) or align (8) for percpu allocation The fixes for both of these issues are different for kmalloc and prealloc modes. For prealloc mode allocate extra num_possible_cpus elements and store their pointers into extra_elems array instead of actual elements. Hence we can use these hidden(spare) elements not only when the map is full but during bpf_map_update_elem() that replaces existing element too. That also improves performance, since pcpu_freelist_pop/push is avoided. Unfortunately this approach cannot be used for kmalloc mode which needs to kfree elements after rcu grace period. Therefore switch it back to normal kmalloc even when full and old element exists like it was prior to commit 6c905981 ("bpf: pre-allocate hash map elements"). Add tests to check for over max_entries and large map values. Reported-by: NDave Jones <davej@codemonkey.org.uk> Fixes: 6c905981 ("bpf: pre-allocate hash map elements") Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NMartin KaFai Lau <kafai@fb.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 3月, 2017 1 次提交
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由 Zi Shen Lim 提交于
Merge of 'linux-kselftest-4.11-rc1': 1. Partially removed use of 'test_objs' target, breaking force rebuild of BPFOBJ, introduced in commit d498f871 ("bpf: Rebuild bpf.o for any dependency update"). Update target so dependency on BPFOBJ is restored. 2. Introduced commit 2047f1d8 ("selftests: Fix the .c linking rule") which fixes order of LDLIBS. Commit d02d8986 ("bpf: Always test unprivileged programs") added libcap dependency into CFLAGS. Use LDLIBS instead to fix linking of test_verifier. 3. Introduced commit d83c3ba0 ("selftests: Fix selftests build to just build, not run tests"). Reordering the Makefile allows us to remove the 'all' target. Tested both: selftests/bpf$ make and selftests$ make TARGETS=bpf on Ubuntu 16.04.2. Signed-off-by: NZi Shen Lim <zlim.lnx@gmail.com> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Tested-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAlexei Starovoitov <ast@kernel.org> Tested-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NShuah Khan <shuahkh@osg.samsung.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 3月, 2017 1 次提交
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由 Alexei Starovoitov 提交于
Recent merge of 'linux-kselftest-4.11-rc1' tree broke bpf test build. None of the tests were building and test_verifier.c had tons of compiler errors. Fix it and add #ifdef CAP_IS_SUPPORTED to support old versions of libcap. Tested on centos 6.8 and 7 Signed-off-by: NAlexei Starovoitov <ast@kernel.org> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Tested-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 2月, 2017 1 次提交
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由 Mickaël Salaün 提交于
This is needed to force a rebuild of bpf.o when one of its dependencies (e.g. uapi/linux/bpf.h) is updated. Add a phony target. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David S. Miller <davem@davemloft.net> Cc: Wang Nan <wangnan0@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 2月, 2017 8 次提交
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由 Mickaël Salaün 提交于
Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mickaël Salaün 提交于
Add require dependency headers. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mickaël Salaün 提交于
Replace bpf_map_create() with bpf_create_map() calls. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mickaël Salaün 提交于
Replace bpf_map_next_key() with bpf_map_get_next_key() calls. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mickaël Salaün 提交于
Replace bpf_map_delete() with bpf_map_delete_elem() calls. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mickaël Salaün 提交于
Replace bpf_map_lookup() with bpf_map_lookup_elem() calls. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mickaël Salaün 提交于
Replace bpf_map_update() with bpf_map_update_elem() calls. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mickaël Salaün 提交于
Replace bpf_prog_load() with bpf_load_program() calls. Signed-off-by: NMickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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