* [PATCH bpf-next v7 0/2] bpf: Allow bpf_skb_event_output for more prog types @ 2019-06-26 23:57 Allan Zhang 2019-06-26 23:58 ` [PATCH bpf-next v7 1/2] bpf: Allow bpf_skb_event_output for a few " Allan Zhang 2019-06-26 23:58 ` [PATCH bpf-next v7 2/2] selftests/bpf: Add selftests for bpf_perf_event_output Allan Zhang 0 siblings, 2 replies; 5+ messages in thread From: Allan Zhang @ 2019-06-26 23:57 UTC (permalink / raw) To: Daniel Borkmann, Song Liu Cc: Alexei Starovoitov, Martin KaFai Lau, Yonghong Song, David S. Miller, linux-kernel, Allan Zhang Software event output is only enabled by a few prog types right now (TC, LWT out, XDP, sockops). Many other skb based prog types need bpf_skb_event_output to produce software event. More prog types are enabled to access bpf_skb_event_output in this patch. v7 changes: Reformat from hints by scripts/checkpatch.pl, including Song's comment on signed-off-by name to captical case in cover letter. 3 of hints are ignored: 1. new file mode. 2. SPDX-License-Identifier for event_output.c since all files under this dir have no such line. 3. "Macros ... enclosed in parentheses" for macro in event_output.c due to code's nature. Change patch 02 subject "bpf:..." to "selftests/bpf:..." v6 changes: Fix Signed-off-by, fix fixup map creation. v5 changes: Fix typos, reformat comments in event_output.c, move revision history to cover letter. v4 changes: Reformating log message. v3 changes: Reformating log message. v2 changes: Reformating log message. Allan Zhang (2): bpf: Allow bpf_skb_event_output for a few prog types selftests/bpf: Add selftests for bpf_perf_event_output net/core/filter.c | 6 ++ tools/testing/selftests/bpf/test_verifier.c | 12 ++- .../selftests/bpf/verifier/event_output.c | 94 +++++++++++++++++++ 3 files changed, 111 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/bpf/verifier/event_output.c -- 2.22.0.410.gd8fdbe21b5-goog ^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH bpf-next v7 1/2] bpf: Allow bpf_skb_event_output for a few prog types 2019-06-26 23:57 [PATCH bpf-next v7 0/2] bpf: Allow bpf_skb_event_output for more prog types Allan Zhang @ 2019-06-26 23:58 ` Allan Zhang 2019-06-27 16:34 ` Song Liu 2019-06-26 23:58 ` [PATCH bpf-next v7 2/2] selftests/bpf: Add selftests for bpf_perf_event_output Allan Zhang 1 sibling, 1 reply; 5+ messages in thread From: Allan Zhang @ 2019-06-26 23:58 UTC (permalink / raw) To: Daniel Borkmann, Song Liu Cc: Alexei Starovoitov, Martin KaFai Lau, Yonghong Song, David S. Miller, linux-kernel, allanzhang From: allanzhang <allanzhang@google.com> Software event output is only enabled by a few prog types right now (TC, LWT out, XDP, sockops). Many other skb based prog types need bpf_skb_event_output to produce software event. Added socket_filter, cg_skb, sk_skb prog types to generate sw event. Test bpf code is generated from code snippet: struct TMP { uint64_t tmp; } tt; tt.tmp = 5; bpf_perf_event_output(skb, &connection_tracking_event_map, 0, &tt, sizeof(tt)); return 1; the bpf assembly from llvm is: 0: b7 02 00 00 05 00 00 00 r2 = 5 1: 7b 2a f8 ff 00 00 00 00 *(u64 *)(r10 - 8) = r2 2: bf a4 00 00 00 00 00 00 r4 = r10 3: 07 04 00 00 f8 ff ff ff r4 += -8 4: 18 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r2 = 0ll 6: b7 03 00 00 00 00 00 00 r3 = 0 7: b7 05 00 00 08 00 00 00 r5 = 8 8: 85 00 00 00 19 00 00 00 call 25 9: b7 00 00 00 01 00 00 00 r0 = 1 10: 95 00 00 00 00 00 00 00 exit Signed-off-by: Allan Zhang <allanzhang@google.com> --- net/core/filter.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/core/filter.c b/net/core/filter.c index 2014d76e0d2a..b75fcf412628 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -5958,6 +5958,8 @@ sk_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &bpf_get_socket_cookie_proto; case BPF_FUNC_get_socket_uid: return &bpf_get_socket_uid_proto; + case BPF_FUNC_perf_event_output: + return &bpf_skb_event_output_proto; default: return bpf_base_func_proto(func_id); } @@ -5978,6 +5980,8 @@ cg_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &bpf_sk_storage_get_proto; case BPF_FUNC_sk_storage_delete: return &bpf_sk_storage_delete_proto; + case BPF_FUNC_perf_event_output: + return &bpf_skb_event_output_proto; #ifdef CONFIG_SOCK_CGROUP_DATA case BPF_FUNC_skb_cgroup_id: return &bpf_skb_cgroup_id_proto; @@ -6226,6 +6230,8 @@ sk_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &bpf_sk_redirect_map_proto; case BPF_FUNC_sk_redirect_hash: return &bpf_sk_redirect_hash_proto; + case BPF_FUNC_perf_event_output: + return &bpf_skb_event_output_proto; #ifdef CONFIG_INET case BPF_FUNC_sk_lookup_tcp: return &bpf_sk_lookup_tcp_proto; -- 2.22.0.410.gd8fdbe21b5-goog ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH bpf-next v7 1/2] bpf: Allow bpf_skb_event_output for a few prog types 2019-06-26 23:58 ` [PATCH bpf-next v7 1/2] bpf: Allow bpf_skb_event_output for a few " Allan Zhang @ 2019-06-27 16:34 ` Song Liu 0 siblings, 0 replies; 5+ messages in thread From: Song Liu @ 2019-06-27 16:34 UTC (permalink / raw) To: Allan Zhang Cc: Daniel Borkmann, Alexei Starovoitov, Martin Lau, Yonghong Song, David S. Miller, linux-kernel > On Jun 26, 2019, at 4:58 PM, Allan Zhang <allanzhang@google.com> wrote: > > From: allanzhang <allanzhang@google.com> > > Software event output is only enabled by a few prog types right now (TC, > LWT out, XDP, sockops). Many other skb based prog types need > bpf_skb_event_output to produce software event. > > Added socket_filter, cg_skb, sk_skb prog types to generate sw event. > > Test bpf code is generated from code snippet: > > struct TMP { > uint64_t tmp; > } tt; > tt.tmp = 5; > bpf_perf_event_output(skb, &connection_tracking_event_map, 0, > &tt, sizeof(tt)); > return 1; > > the bpf assembly from llvm is: > 0: b7 02 00 00 05 00 00 00 r2 = 5 > 1: 7b 2a f8 ff 00 00 00 00 *(u64 *)(r10 - 8) = r2 > 2: bf a4 00 00 00 00 00 00 r4 = r10 > 3: 07 04 00 00 f8 ff ff ff r4 += -8 > 4: 18 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r2 = 0ll > 6: b7 03 00 00 00 00 00 00 r3 = 0 > 7: b7 05 00 00 08 00 00 00 r5 = 8 > 8: 85 00 00 00 19 00 00 00 call 25 > 9: b7 00 00 00 01 00 00 00 r0 = 1 > 10: 95 00 00 00 00 00 00 00 exit > > Signed-off-by: Allan Zhang <allanzhang@google.com> Acked-by: Song Liu <songliubraving@fb.com> > --- > net/core/filter.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/net/core/filter.c b/net/core/filter.c > index 2014d76e0d2a..b75fcf412628 100644 > --- a/net/core/filter.c > +++ b/net/core/filter.c > @@ -5958,6 +5958,8 @@ sk_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) > return &bpf_get_socket_cookie_proto; > case BPF_FUNC_get_socket_uid: > return &bpf_get_socket_uid_proto; > + case BPF_FUNC_perf_event_output: > + return &bpf_skb_event_output_proto; > default: > return bpf_base_func_proto(func_id); > } > @@ -5978,6 +5980,8 @@ cg_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) > return &bpf_sk_storage_get_proto; > case BPF_FUNC_sk_storage_delete: > return &bpf_sk_storage_delete_proto; > + case BPF_FUNC_perf_event_output: > + return &bpf_skb_event_output_proto; > #ifdef CONFIG_SOCK_CGROUP_DATA > case BPF_FUNC_skb_cgroup_id: > return &bpf_skb_cgroup_id_proto; > @@ -6226,6 +6230,8 @@ sk_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) > return &bpf_sk_redirect_map_proto; > case BPF_FUNC_sk_redirect_hash: > return &bpf_sk_redirect_hash_proto; > + case BPF_FUNC_perf_event_output: > + return &bpf_skb_event_output_proto; > #ifdef CONFIG_INET > case BPF_FUNC_sk_lookup_tcp: > return &bpf_sk_lookup_tcp_proto; > -- > 2.22.0.410.gd8fdbe21b5-goog > ^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH bpf-next v7 2/2] selftests/bpf: Add selftests for bpf_perf_event_output 2019-06-26 23:57 [PATCH bpf-next v7 0/2] bpf: Allow bpf_skb_event_output for more prog types Allan Zhang 2019-06-26 23:58 ` [PATCH bpf-next v7 1/2] bpf: Allow bpf_skb_event_output for a few " Allan Zhang @ 2019-06-26 23:58 ` Allan Zhang 2019-06-27 16:39 ` Song Liu 1 sibling, 1 reply; 5+ messages in thread From: Allan Zhang @ 2019-06-26 23:58 UTC (permalink / raw) To: Daniel Borkmann, Song Liu Cc: Alexei Starovoitov, Martin KaFai Lau, Yonghong Song, David S. Miller, linux-kernel, allanzhang From: allanzhang <allanzhang@google.com> Software event output is only enabled by a few prog types. This test is to ensure that all supported types are enabled for bpf_perf_event_output successfully. Signed-off-by: Allan Zhang <allanzhang@google.com> --- tools/testing/selftests/bpf/test_verifier.c | 12 ++- .../selftests/bpf/verifier/event_output.c | 94 +++++++++++++++++++ 2 files changed, 105 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/bpf/verifier/event_output.c diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index c5514daf8865..5e98d7c37eb7 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -50,7 +50,7 @@ #define MAX_INSNS BPF_MAXINSNS #define MAX_TEST_INSNS 1000000 #define MAX_FIXUPS 8 -#define MAX_NR_MAPS 18 +#define MAX_NR_MAPS 19 #define MAX_TEST_RUNS 8 #define POINTER_VALUE 0xcafe4all #define TEST_DATA_LEN 64 @@ -84,6 +84,7 @@ struct bpf_test { int fixup_map_array_wo[MAX_FIXUPS]; int fixup_map_array_small[MAX_FIXUPS]; int fixup_sk_storage_map[MAX_FIXUPS]; + int fixup_map_event_output[MAX_FIXUPS]; const char *errstr; const char *errstr_unpriv; uint32_t retval, retval_unpriv, insn_processed; @@ -627,6 +628,7 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type, int *fixup_map_array_wo = test->fixup_map_array_wo; int *fixup_map_array_small = test->fixup_map_array_small; int *fixup_sk_storage_map = test->fixup_sk_storage_map; + int *fixup_map_event_output = test->fixup_map_event_output; if (test->fill_helper) { test->fill_insns = calloc(MAX_TEST_INSNS, sizeof(struct bpf_insn)); @@ -788,6 +790,14 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type, fixup_sk_storage_map++; } while (*fixup_sk_storage_map); } + if (*fixup_map_event_output) { + map_fds[18] = __create_map(BPF_MAP_TYPE_PERF_EVENT_ARRAY, + sizeof(int), sizeof(int), 1, 0); + do { + prog[*fixup_map_event_output].imm = map_fds[18]; + fixup_map_event_output++; + } while (*fixup_map_event_output); + } } static int set_admin(bool admin) diff --git a/tools/testing/selftests/bpf/verifier/event_output.c b/tools/testing/selftests/bpf/verifier/event_output.c new file mode 100644 index 000000000000..130553e19eca --- /dev/null +++ b/tools/testing/selftests/bpf/verifier/event_output.c @@ -0,0 +1,94 @@ +/* instructions used to output a skb based software event, produced + * from code snippet: + * struct TMP { + * uint64_t tmp; + * } tt; + * tt.tmp = 5; + * bpf_perf_event_output(skb, &connection_tracking_event_map, 0, + * &tt, sizeof(tt)); + * return 1; + * + * the bpf assembly from llvm is: + * 0: b7 02 00 00 05 00 00 00 r2 = 5 + * 1: 7b 2a f8 ff 00 00 00 00 *(u64 *)(r10 - 8) = r2 + * 2: bf a4 00 00 00 00 00 00 r4 = r10 + * 3: 07 04 00 00 f8 ff ff ff r4 += -8 + * 4: 18 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r2 = 0ll + * 6: b7 03 00 00 00 00 00 00 r3 = 0 + * 7: b7 05 00 00 08 00 00 00 r5 = 8 + * 8: 85 00 00 00 19 00 00 00 call 25 + * 9: b7 00 00 00 01 00 00 00 r0 = 1 + * 10: 95 00 00 00 00 00 00 00 exit + * + * The reason I put the code here instead of fill_helpers is that map fixup + * is against the insns, instead of filled prog. + */ + +#define __PERF_EVENT_INSNS__ \ + BPF_MOV64_IMM(BPF_REG_2, 5), \ + BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8), \ + BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), \ + BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), \ + BPF_LD_MAP_FD(BPF_REG_2, 0), \ + BPF_MOV64_IMM(BPF_REG_3, 0), \ + BPF_MOV64_IMM(BPF_REG_5, 8), \ + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, \ + BPF_FUNC_perf_event_output), \ + BPF_MOV64_IMM(BPF_REG_0, 1), \ + BPF_EXIT_INSN(), +{ + "perfevent for sockops", + .insns = { __PERF_EVENT_INSNS__ }, + .prog_type = BPF_PROG_TYPE_SOCK_OPS, + .fixup_map_event_output = { 4 }, + .result = ACCEPT, + .retval = 1, +}, +{ + "perfevent for tc", + .insns = { __PERF_EVENT_INSNS__ }, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .fixup_map_event_output = { 4 }, + .result = ACCEPT, + .retval = 1, +}, +{ + "perfevent for lwt out", + .insns = { __PERF_EVENT_INSNS__ }, + .prog_type = BPF_PROG_TYPE_LWT_OUT, + .fixup_map_event_output = { 4 }, + .result = ACCEPT, + .retval = 1, +}, +{ + "perfevent for xdp", + .insns = { __PERF_EVENT_INSNS__ }, + .prog_type = BPF_PROG_TYPE_XDP, + .fixup_map_event_output = { 4 }, + .result = ACCEPT, + .retval = 1, +}, +{ + "perfevent for socket filter", + .insns = { __PERF_EVENT_INSNS__ }, + .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, + .fixup_map_event_output = { 4 }, + .result = ACCEPT, + .retval = 1, +}, +{ + "perfevent for sk_skb", + .insns = { __PERF_EVENT_INSNS__ }, + .prog_type = BPF_PROG_TYPE_SK_SKB, + .fixup_map_event_output = { 4 }, + .result = ACCEPT, + .retval = 1, +}, +{ + "perfevent for cgroup skb", + .insns = { __PERF_EVENT_INSNS__ }, + .prog_type = BPF_PROG_TYPE_CGROUP_SKB, + .fixup_map_event_output = { 4 }, + .result = ACCEPT, + .retval = 1, +}, -- 2.22.0.410.gd8fdbe21b5-goog ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH bpf-next v7 2/2] selftests/bpf: Add selftests for bpf_perf_event_output 2019-06-26 23:58 ` [PATCH bpf-next v7 2/2] selftests/bpf: Add selftests for bpf_perf_event_output Allan Zhang @ 2019-06-27 16:39 ` Song Liu 0 siblings, 0 replies; 5+ messages in thread From: Song Liu @ 2019-06-27 16:39 UTC (permalink / raw) To: Allan Zhang Cc: Daniel Borkmann, Alexei Starovoitov, Martin Lau, Yonghong Song, David S. Miller, linux-kernel > On Jun 26, 2019, at 4:58 PM, Allan Zhang <allanzhang@google.com> wrote: > > From: allanzhang <allanzhang@google.com> > > Software event output is only enabled by a few prog types. > This test is to ensure that all supported types are enabled for > bpf_perf_event_output successfully. > > Signed-off-by: Allan Zhang <allanzhang@google.com> Acked-by: Song Liu <songliubraving@fb.com> > --- > tools/testing/selftests/bpf/test_verifier.c | 12 ++- > .../selftests/bpf/verifier/event_output.c | 94 +++++++++++++++++++ > 2 files changed, 105 insertions(+), 1 deletion(-) > create mode 100644 tools/testing/selftests/bpf/verifier/event_output.c > > diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c > index c5514daf8865..5e98d7c37eb7 100644 > --- a/tools/testing/selftests/bpf/test_verifier.c > +++ b/tools/testing/selftests/bpf/test_verifier.c > @@ -50,7 +50,7 @@ > #define MAX_INSNS BPF_MAXINSNS > #define MAX_TEST_INSNS 1000000 > #define MAX_FIXUPS 8 > -#define MAX_NR_MAPS 18 > +#define MAX_NR_MAPS 19 > #define MAX_TEST_RUNS 8 > #define POINTER_VALUE 0xcafe4all > #define TEST_DATA_LEN 64 > @@ -84,6 +84,7 @@ struct bpf_test { > int fixup_map_array_wo[MAX_FIXUPS]; > int fixup_map_array_small[MAX_FIXUPS]; > int fixup_sk_storage_map[MAX_FIXUPS]; > + int fixup_map_event_output[MAX_FIXUPS]; > const char *errstr; > const char *errstr_unpriv; > uint32_t retval, retval_unpriv, insn_processed; > @@ -627,6 +628,7 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type, > int *fixup_map_array_wo = test->fixup_map_array_wo; > int *fixup_map_array_small = test->fixup_map_array_small; > int *fixup_sk_storage_map = test->fixup_sk_storage_map; > + int *fixup_map_event_output = test->fixup_map_event_output; > > if (test->fill_helper) { > test->fill_insns = calloc(MAX_TEST_INSNS, sizeof(struct bpf_insn)); > @@ -788,6 +790,14 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type, > fixup_sk_storage_map++; > } while (*fixup_sk_storage_map); > } > + if (*fixup_map_event_output) { > + map_fds[18] = __create_map(BPF_MAP_TYPE_PERF_EVENT_ARRAY, > + sizeof(int), sizeof(int), 1, 0); > + do { > + prog[*fixup_map_event_output].imm = map_fds[18]; > + fixup_map_event_output++; > + } while (*fixup_map_event_output); > + } > } > > static int set_admin(bool admin) > diff --git a/tools/testing/selftests/bpf/verifier/event_output.c b/tools/testing/selftests/bpf/verifier/event_output.c > new file mode 100644 > index 000000000000..130553e19eca > --- /dev/null > +++ b/tools/testing/selftests/bpf/verifier/event_output.c > @@ -0,0 +1,94 @@ > +/* instructions used to output a skb based software event, produced > + * from code snippet: > + * struct TMP { > + * uint64_t tmp; > + * } tt; > + * tt.tmp = 5; > + * bpf_perf_event_output(skb, &connection_tracking_event_map, 0, > + * &tt, sizeof(tt)); > + * return 1; > + * > + * the bpf assembly from llvm is: > + * 0: b7 02 00 00 05 00 00 00 r2 = 5 > + * 1: 7b 2a f8 ff 00 00 00 00 *(u64 *)(r10 - 8) = r2 > + * 2: bf a4 00 00 00 00 00 00 r4 = r10 > + * 3: 07 04 00 00 f8 ff ff ff r4 += -8 > + * 4: 18 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r2 = 0ll > + * 6: b7 03 00 00 00 00 00 00 r3 = 0 > + * 7: b7 05 00 00 08 00 00 00 r5 = 8 > + * 8: 85 00 00 00 19 00 00 00 call 25 > + * 9: b7 00 00 00 01 00 00 00 r0 = 1 > + * 10: 95 00 00 00 00 00 00 00 exit > + * > + * The reason I put the code here instead of fill_helpers is that map fixup > + * is against the insns, instead of filled prog. > + */ > + > +#define __PERF_EVENT_INSNS__ \ > + BPF_MOV64_IMM(BPF_REG_2, 5), \ > + BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8), \ > + BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), \ > + BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), \ > + BPF_LD_MAP_FD(BPF_REG_2, 0), \ > + BPF_MOV64_IMM(BPF_REG_3, 0), \ > + BPF_MOV64_IMM(BPF_REG_5, 8), \ > + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, \ > + BPF_FUNC_perf_event_output), \ > + BPF_MOV64_IMM(BPF_REG_0, 1), \ > + BPF_EXIT_INSN(), > +{ > + "perfevent for sockops", > + .insns = { __PERF_EVENT_INSNS__ }, > + .prog_type = BPF_PROG_TYPE_SOCK_OPS, > + .fixup_map_event_output = { 4 }, > + .result = ACCEPT, > + .retval = 1, > +}, > +{ > + "perfevent for tc", > + .insns = { __PERF_EVENT_INSNS__ }, > + .prog_type = BPF_PROG_TYPE_SCHED_CLS, > + .fixup_map_event_output = { 4 }, > + .result = ACCEPT, > + .retval = 1, > +}, > +{ > + "perfevent for lwt out", > + .insns = { __PERF_EVENT_INSNS__ }, > + .prog_type = BPF_PROG_TYPE_LWT_OUT, > + .fixup_map_event_output = { 4 }, > + .result = ACCEPT, > + .retval = 1, > +}, > +{ > + "perfevent for xdp", > + .insns = { __PERF_EVENT_INSNS__ }, > + .prog_type = BPF_PROG_TYPE_XDP, > + .fixup_map_event_output = { 4 }, > + .result = ACCEPT, > + .retval = 1, > +}, > +{ > + "perfevent for socket filter", > + .insns = { __PERF_EVENT_INSNS__ }, > + .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, > + .fixup_map_event_output = { 4 }, > + .result = ACCEPT, > + .retval = 1, > +}, > +{ > + "perfevent for sk_skb", > + .insns = { __PERF_EVENT_INSNS__ }, > + .prog_type = BPF_PROG_TYPE_SK_SKB, > + .fixup_map_event_output = { 4 }, > + .result = ACCEPT, > + .retval = 1, > +}, > +{ > + "perfevent for cgroup skb", > + .insns = { __PERF_EVENT_INSNS__ }, > + .prog_type = BPF_PROG_TYPE_CGROUP_SKB, > + .fixup_map_event_output = { 4 }, > + .result = ACCEPT, > + .retval = 1, > +}, > -- > 2.22.0.410.gd8fdbe21b5-goog > ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-06-27 16:39 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-06-26 23:57 [PATCH bpf-next v7 0/2] bpf: Allow bpf_skb_event_output for more prog types Allan Zhang 2019-06-26 23:58 ` [PATCH bpf-next v7 1/2] bpf: Allow bpf_skb_event_output for a few " Allan Zhang 2019-06-27 16:34 ` Song Liu 2019-06-26 23:58 ` [PATCH bpf-next v7 2/2] selftests/bpf: Add selftests for bpf_perf_event_output Allan Zhang 2019-06-27 16:39 ` Song Liu
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