diff options
| author | David S. Miller <davem@davemloft.net> | 2021-12-31 14:35:40 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-12-31 14:35:40 +0000 |
| commit | e63a02348958cd7cc8c8401c94de57ad97b5d06c (patch) | |
| tree | d3f07960e158be75c3002c13d3dc2c142a65fbb7 /tools/testing | |
| parent | ce2b6eb409ad40607193641c3ec18c3457e1f57c (diff) | |
| parent | 9e6b19a66d9b6b94395478fe79c5a3ccba181ad3 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
pull-request: bpf-next 2021-12-30
The following pull-request contains BPF updates for your *net-next* tree.
We've added 72 non-merge commits during the last 20 day(s) which contain
a total of 223 files changed, 3510 insertions(+), 1591 deletions(-).
The main changes are:
1) Automatic setrlimit in libbpf when bpf is memcg's in the kernel, from Andrii.
2) Beautify and de-verbose verifier logs, from Christy.
3) Composable verifier types, from Hao.
4) bpf_strncmp helper, from Hou.
5) bpf.h header dependency cleanup, from Jakub.
6) get_func_[arg|ret|arg_cnt] helpers, from Jiri.
7) Sleepable local storage, from KP.
8) Extend kfunc with PTR_TO_CTX, PTR_TO_MEM argument support, from Kumar.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing')
42 files changed, 1077 insertions, 265 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index a795bca4c8ec..42ffc24e9e71 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -170,7 +170,7 @@ $(OUTPUT)/%:%.c $(OUTPUT)/urandom_read: urandom_read.c $(call msg,BINARY,,$@) - $(Q)$(CC) $(LDFLAGS) $< $(LDLIBS) -Wl,--build-id=sha1 -o $@ + $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $< $(LDLIBS) -Wl,--build-id=sha1 -o $@ $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) $(call msg,MOD,,$@) @@ -217,7 +217,7 @@ BPFTOOL ?= $(DEFAULT_BPFTOOL) $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ - CC=$(HOSTCC) LD=$(HOSTLD) \ + ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) \ EXTRA_CFLAGS='-g -O0' \ OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ @@ -248,7 +248,7 @@ $(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ $(APIDIR)/linux/bpf.h \ | $(HOST_BUILD_DIR)/libbpf $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ - EXTRA_CFLAGS='-g -O0' \ + EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE= \ OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \ DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers endif @@ -537,6 +537,7 @@ $(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \ $(OUTPUT)/perfbuf_bench.skel.h $(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h $(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h +$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h $(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ) $(OUTPUT)/bench: LDLIBS += -lm $(OUTPUT)/bench: $(OUTPUT)/bench.o \ @@ -547,9 +548,10 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o \ $(OUTPUT)/bench_trigger.o \ $(OUTPUT)/bench_ringbufs.o \ $(OUTPUT)/bench_bloom_filter_map.o \ - $(OUTPUT)/bench_bpf_loop.o + $(OUTPUT)/bench_bpf_loop.o \ + $(OUTPUT)/bench_strncmp.o $(call msg,BINARY,,$@) - $(Q)$(CC) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ + $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@ EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \ prog_tests/tests.h map_tests/tests.h verifier/tests.h \ diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c index 3d6082b97a56..f973320e6dbf 100644 --- a/tools/testing/selftests/bpf/bench.c +++ b/tools/testing/selftests/bpf/bench.c @@ -29,26 +29,10 @@ static int libbpf_print_fn(enum libbpf_print_level level, return vfprintf(stderr, format, args); } -static int bump_memlock_rlimit(void) +void setup_libbpf(void) { - struct rlimit rlim_new = { - .rlim_cur = RLIM_INFINITY, - .rlim_max = RLIM_INFINITY, - }; - - return setrlimit(RLIMIT_MEMLOCK, &rlim_new); -} - -void setup_libbpf() -{ - int err; - libbpf_set_strict_mode(LIBBPF_STRICT_ALL); libbpf_set_print(libbpf_print_fn); - - err = bump_memlock_rlimit(); - if (err) - fprintf(stderr, "failed to increase RLIMIT_MEMLOCK: %d", err); } void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns) @@ -205,11 +189,13 @@ static const struct argp_option opts[] = { extern struct argp bench_ringbufs_argp; extern struct argp bench_bloom_map_argp; extern struct argp bench_bpf_loop_argp; +extern struct argp bench_strncmp_argp; static const struct argp_child bench_parsers[] = { { &bench_ringbufs_argp, 0, "Ring buffers benchmark", 0 }, { &bench_bloom_map_argp, 0, "Bloom filter map benchmark", 0 }, { &bench_bpf_loop_argp, 0, "bpf_loop helper benchmark", 0 }, + { &bench_strncmp_argp, 0, "bpf_strncmp helper benchmark", 0 }, {}, }; @@ -409,6 +395,8 @@ extern const struct bench bench_bloom_false_positive; extern const struct bench bench_hashmap_without_bloom; extern const struct bench bench_hashmap_with_bloom; extern const struct bench bench_bpf_loop; +extern const struct bench bench_strncmp_no_helper; +extern const struct bench bench_strncmp_helper; static const struct bench *benchs[] = { &bench_count_global, @@ -441,6 +429,8 @@ static const struct bench *benchs[] = { &bench_hashmap_without_bloom, &bench_hashmap_with_bloom, &bench_bpf_loop, + &bench_strncmp_no_helper, + &bench_strncmp_helper, }; static void setup_benchmark() diff --git a/tools/testing/selftests/bpf/bench.h b/tools/testing/selftests/bpf/bench.h index 50785503756b..fb3e213df3dc 100644 --- a/tools/testing/selftests/bpf/bench.h +++ b/tools/testing/selftests/bpf/bench.h @@ -38,8 +38,8 @@ struct bench_res { struct bench { const char *name; - void (*validate)(); - void (*setup)(); + void (*validate)(void); + void (*setup)(void); void *(*producer_thread)(void *ctx); void *(*consumer_thread)(void *ctx); void (*measure)(struct bench_res* res); @@ -54,7 +54,7 @@ struct counter { extern struct env env; extern const struct bench *bench; -void setup_libbpf(); +void setup_libbpf(void); void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns); void hits_drops_report_final(struct bench_res res[], int res_cnt); void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns); @@ -62,7 +62,8 @@ void false_hits_report_final(struct bench_res res[], int res_cnt); void ops_report_progress(int iter, struct bench_res *res, long delta_ns); void ops_report_final(struct bench_res res[], int res_cnt); -static inline __u64 get_time_ns() { +static inline __u64 get_time_ns(void) +{ struct timespec t; clock_gettime(CLOCK_MONOTONIC, &t); diff --git a/tools/testing/selftests/bpf/benchs/bench_count.c b/tools/testing/selftests/bpf/benchs/bench_count.c index befba7a82643..078972ce208e 100644 --- a/tools/testing/selftests/bpf/benchs/bench_count.c +++ b/tools/testing/selftests/bpf/benchs/bench_count.c @@ -36,7 +36,7 @@ static struct count_local_ctx { struct counter *hits; } count_local_ctx; -static void count_local_setup() +static void count_local_setup(void) { struct count_local_ctx *ctx = &count_local_ctx; diff --git a/tools/testing/selftests/bpf/benchs/bench_rename.c b/tools/testing/selftests/bpf/benchs/bench_rename.c index c7ec114eca56..3c203b6d6a6e 100644 --- a/tools/testing/selftests/bpf/benchs/bench_rename.c +++ b/tools/testing/selftests/bpf/benchs/bench_rename.c @@ -11,7 +11,7 @@ static struct ctx { int fd; } ctx; -static void validate() +static void validate(void) { if (env.producer_cnt != 1) { fprintf(stderr, "benchmark doesn't support multi-producer!\n"); @@ -43,7 +43,7 @@ static void measure(struct bench_res *res) res->hits = atomic_swap(&ctx.hits.value, 0); } -static void setup_ctx() +static void setup_ctx(void) { setup_libbpf(); @@ -71,36 +71,36 @@ static void attach_bpf(struct bpf_program *prog) } } -static void setup_base() +static void setup_base(void) { setup_ctx(); } -static void setup_kprobe() +static void setup_kprobe(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog1); } -static void setup_kretprobe() +static void setup_kretprobe(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog2); } -static void setup_rawtp() +static void setup_rawtp(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog3); } -static void setup_fentry() +static void setup_fentry(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog4); } -static void setup_fexit() +static void setup_fexit(void) { setup_ctx(); attach_bpf(ctx.skel->progs.prog5); diff --git a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c index 52d4a2f91dbd..da8593b3494a 100644 --- a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c +++ b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c @@ -88,12 +88,12 @@ const struct argp bench_ringbufs_argp = { static struct counter buf_hits; -static inline void bufs_trigger_batch() +static inline void bufs_trigger_batch(void) { (void)syscall(__NR_getpgid); } -static void bufs_validate() +static void bufs_validate(void) { if (env.consumer_cnt != 1) { fprintf(stderr, "rb-libbpf benchmark doesn't support multi-consumer!\n"); @@ -132,7 +132,7 @@ static void ringbuf_libbpf_measure(struct bench_res *res) res->drops = atomic_swap(&ctx->skel->bss->dropped, 0); } -static struct ringbuf_bench *ringbuf_setup_skeleton() +static struct ringbuf_bench *ringbuf_setup_skeleton(void) { struct ringbuf_bench *skel; @@ -167,7 +167,7 @@ static int buf_process_sample(void *ctx, void *data, size_t len) return 0; } -static void ringbuf_libbpf_setup() +static void ringbuf_libbpf_setup(void) { struct ringbuf_libbpf_ctx *ctx = &ringbuf_libbpf_ctx; struct bpf_link *link; @@ -223,7 +223,7 @@ static void ringbuf_custom_measure(struct bench_res *res) res->drops = atomic_swap(&ctx->skel->bss->dropped, 0); } -static void ringbuf_custom_setup() +static void ringbuf_custom_setup(void) { struct ringbuf_custom_ctx *ctx = &ringbuf_custom_ctx; const size_t page_size = getpagesize(); @@ -352,7 +352,7 @@ static void perfbuf_measure(struct bench_res *res) res->drops = atomic_swap(&ctx->skel->bss->dropped, 0); } -static struct perfbuf_bench *perfbuf_setup_skeleton() +static struct perfbuf_bench *perfbuf_setup_skeleton(void) { struct perfbuf_bench *skel; @@ -390,7 +390,7 @@ perfbuf_process_sample_raw(void *input_ctx, int cpu, return LIBBPF_PERF_EVENT_CONT; } -static void perfbuf_libbpf_setup() +static void perfbuf_libbpf_setup(void) { struct perfbuf_libbpf_ctx *ctx = &perfbuf_libbpf_ctx; struct perf_event_attr attr; diff --git a/tools/testing/selftests/bpf/benchs/bench_strncmp.c b/tools/testing/selftests/bpf/benchs/bench_strncmp.c new file mode 100644 index 000000000000..494b591c0289 --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/bench_strncmp.c @@ -0,0 +1,161 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2021. Huawei Technologies Co., Ltd */ +#include <argp.h> +#include "bench.h" +#include "strncmp_bench.skel.h" + +static struct strncmp_ctx { + struct strncmp_bench *skel; +} ctx; + +static struct strncmp_args { + u32 cmp_str_len; +} args = { + .cmp_str_len = 32, +}; + +enum { + ARG_CMP_STR_LEN = 5000, +}; + +static const struct argp_option opts[] = { + { "cmp-str-len", ARG_CMP_STR_LEN, "CMP_STR_LEN", 0, + "Set the length of compared string" }, + {}, +}; + +static error_t strncmp_parse_arg(int key, char *arg, struct argp_state *state) +{ + switch (key) { + case ARG_CMP_STR_LEN: + args.cmp_str_len = strtoul(arg, NULL, 10); + if (!args.cmp_str_len || + args.cmp_str_len >= sizeof(ctx.skel->bss->str)) { + fprintf(stderr, "Invalid cmp str len (limit %zu)\n", + sizeof(ctx.skel->bss->str)); + argp_usage(state); + } + break; + default: + return ARGP_ERR_UNKNOWN; + } + + return 0; +} + +const struct argp bench_strncmp_argp = { + .options = opts, + .parser = strncmp_parse_arg, +}; + +static void strncmp_validate(void) +{ + if (env.consumer_cnt != 1) { + fprintf(stderr, "strncmp benchmark doesn't support multi-consumer!\n"); + exit(1); + } +} + +static void strncmp_setup(void) +{ + int err; + char *target; + size_t i, sz; + + sz = sizeof(ctx.skel->rodata->target); + if (!sz || sz < sizeof(ctx.skel->bss->str)) { + fprintf(stderr, "invalid string size (target %zu, src %zu)\n", + sz, sizeof(ctx.skel->bss->str)); + exit(1); + } + + setup_libbpf(); + + ctx.skel = strncmp_bench__open(); + if (!ctx.skel) { + fprintf(stderr, "failed to open skeleton\n"); + exit(1); + } + + srandom(time(NULL)); + target = ctx.skel->rodata->target; + for (i = 0; i < sz - 1; i++) + target[i] = '1' + random() % 9; + target[sz - 1] = '\0'; + + ctx.skel->rodata->cmp_str_len = args.cmp_str_len; + + memcpy(ctx.skel->bss->str, target, args.cmp_str_len); + ctx.skel->bss->str[args.cmp_str_len] = '\0'; + /* Make bss->str < rodata->target */ + ctx.skel->bss->str[args.cmp_str_len - 1] -= 1; + + err = strncmp_bench__load(ctx.skel); + if (err) { + fprintf(stderr, "failed to load skeleton\n"); + strncmp_bench__destroy(ctx.skel); + exit(1); + } +} + +static void strncmp_attach_prog(struct bpf_program *prog) +{ + struct bpf_link *link; + + link = bpf_program__attach(prog); + if (!link) { + fprintf(stderr, "failed to attach program!\n"); + exit(1); + } +} + +static void strncmp_no_helper_setup(void) +{ + strncmp_setup(); + strncmp_attach_prog(ctx.skel->progs.strncmp_no_helper); +} + +static void strncmp_helper_setup(void) +{ + strncmp_setup(); + strncmp_attach_prog(ctx.skel->progs.strncmp_helper); +} + +static void *strncmp_producer(void *ctx) +{ + while (true) + (void)syscall(__NR_getpgid); + return NULL; +} + +static void *strncmp_consumer(void *ctx) +{ + return NULL; +} + +static void strncmp_measure(struct bench_res *res) +{ + res->hits = atomic_swap(&ctx.skel->bss->hits, 0); +} + +const struct bench bench_strncmp_no_helper = { + .name = "strncmp-no-helper", + .validate = strncmp_validate, + .setup = strncmp_no_helper_setup, + .producer_thread = strncmp_producer, + .consumer_thread = strncmp_consumer, + .measure = strncmp_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; + +const struct bench bench_strncmp_helper = { + .name = "strncmp-helper", + .validate = strncmp_validate, + .setup = strncmp_helper_setup, + .producer_thread = strncmp_producer, + .consumer_thread = strncmp_consumer, + .measure = strncmp_measure, + .report_progress = hits_drops_report_progress, + .report_final = hits_drops_report_final, +}; diff --git a/tools/testing/selftests/bpf/benchs/bench_trigger.c b/tools/testing/selftests/bpf/benchs/bench_trigger.c index 049a5ad56f65..7f957c55a3ca 100644 --- a/tools/testing/selftests/bpf/benchs/bench_trigger.c +++ b/tools/testing/selftests/bpf/benchs/bench_trigger.c @@ -11,7 +11,7 @@ static struct trigger_ctx { static struct counter base_hits; -static void trigger_validate() +static void trigger_validate(void) { if (env.consumer_cnt != 1) { fprintf(stderr, "benchmark doesn't support multi-consumer!\n"); @@ -45,7 +45,7 @@ static void trigger_measure(struct bench_res *res) res->hits = atomic_swap(&ctx.skel->bss->hits, 0); } -static void setup_ctx() +static void setup_ctx(void) { setup_libbpf(); @@ -67,37 +67,37 @@ static void attach_bpf(struct bpf_program *prog) } } -static void trigger_tp_setup() +static void trigger_tp_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_tp); } -static void trigger_rawtp_setup() +static void trigger_rawtp_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_raw_tp); } -static void trigger_kprobe_setup() +static void trigger_kprobe_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_kprobe); } -static void trigger_fentry_setup() +static void trigger_fentry_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fentry); } -static void trigger_fentry_sleep_setup() +static void trigger_fentry_sleep_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fentry_sleep); } -static void trigger_fmodret_setup() +static void trigger_fmodret_setup(void) { setup_ctx(); attach_bpf(ctx.skel->progs.bench_trigger_fmodret); @@ -183,22 +183,22 @@ static void usetup(bool use_retprobe, bool use_nop) ctx.skel->links.bench_trigger_uprobe = link; } -static void uprobe_setup_with_nop() +static void uprobe_setup_with_nop(void) { usetup(false, true); } -static void uretprobe_setup_with_nop() +static void uretprobe_setup_with_nop(void) { usetup(true, true); } -static void uprobe_setup_without_nop() +static void uprobe_setup_without_nop(void) { usetup(false, false); } -static void uretprobe_setup_without_nop() +static void uretprobe_setup_without_nop(void) { usetup(true, false); } diff --git a/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh b/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh new file mode 100755 index 000000000000..142697284b45 --- /dev/null +++ b/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh @@ -0,0 +1,12 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +source ./benchs/run_common.sh + +set -eufo pipefail + +for s in 1 8 64 512 2048 4095; do + for b in no-helper helper; do + summarize ${b}-${s} "$($RUN_BENCH --cmp-str-len=$s strncmp-${b})" + done +done diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config index 5192305159ec..f6287132fa89 100644 --- a/tools/testing/selftests/bpf/config +++ b/tools/testing/selftests/bpf/config @@ -38,7 +38,9 @@ CONFIG_IPV6_SIT=m CONFIG_BPF_JIT=y CONFIG_BPF_LSM=y CONFIG_SECURITY=y +CONFIG_RC_CORE=y CONFIG_LIRC=y +CONFIG_BPF_LIRC_MODE2=y CONFIG_IMA=y CONFIG_SECURITYFS=y CONFIG_IMA_WRITE_POLICY=y diff --git a/tools/testing/selftests/bpf/prog_tests/align.c b/tools/testing/selftests/bpf/prog_tests/align.c index 837f67c6bfda..0ee29e11eaee 100644 --- a/tools/testing/selftests/bpf/prog_tests/align.c +++ b/tools/testing/selftests/bpf/prog_tests/align.c @@ -39,13 +39,13 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {1, "R1=ctx(id=0,off=0,imm=0)"}, - {1, "R10=fp0"}, - {1, "R3_w=inv2"}, - {2, "R3_w=inv4"}, - {3, "R3_w=inv8"}, - {4, "R3_w=inv16"}, - {5, "R3_w=inv32"}, + {0, "R1=ctx(id=0,off=0,imm=0)"}, + {0, "R10=fp0"}, + {0, "R3_w=inv2"}, + {1, "R3_w=inv4"}, + {2, "R3_w=inv8"}, + {3, "R3_w=inv16"}, + {4, "R3_w=inv32"}, }, }, { @@ -67,19 +67,19 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {1, "R1=ctx(id=0,off=0,imm=0)"}, - {1, "R10=fp0"}, - {1, "R3_w=inv1"}, - {2, "R3_w=inv2"}, - {3, "R3_w=inv4"}, - {4, "R3_w=inv8"}, - {5, "R3_w=inv16"}, - {6, "R3_w=inv1"}, - {7, "R4_w=inv32"}, - {8, "R4_w=inv16"}, - {9, "R4_w=inv8"}, - {10, "R4_w=inv4"}, - {11, "R4_w=inv2"}, + {0, "R1=ctx(id=0,off=0,imm=0)"}, + {0, "R10=fp0"}, + {0, "R3_w=inv1"}, + {1, "R3_w=inv2"}, + {2, "R3_w=inv4"}, + {3, "R3_w=inv8"}, + {4, "R3_w=inv16"}, + {5, "R3_w=inv1"}, + {6, "R4_w=inv32"}, + {7, "R4_w=inv16"}, + {8, "R4_w=inv8"}, + {9, "R4_w=inv4"}, + {10, "R4_w=inv2"}, }, }, { @@ -96,14 +96,14 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {1, "R1=ctx(id=0,off=0,imm=0)"}, - {1, "R10=fp0"}, - {1, "R3_w=inv4"}, - {2, "R3_w=inv8"}, - {3, "R3_w=inv10"}, - {4, "R4_w=inv8"}, - {5, "R4_w=inv12"}, - {6, "R4_w=inv14"}, + {0, "R1=ctx(id=0,off=0,imm=0)"}, + {0, "R10=fp0"}, + {0, "R3_w=inv4"}, + {1, "R3_w=inv8"}, + {2, "R3_w=inv10"}, + {3, "R4_w=inv8"}, + {4, "R4_w=inv12"}, + {5, "R4_w=inv14"}, }, }, { @@ -118,12 +118,12 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {1, "R1=ctx(id=0,off=0,imm=0)"}, - {1, "R10=fp0"}, + {0, "R1=ctx(id=0,off=0,imm=0)"}, + {0, "R10=fp0"}, + {0, "R3_w=inv7"}, {1, "R3_w=inv7"}, - {2, "R3_w=inv7"}, - {3, "R3_w=inv14"}, - {4, "R3_w=inv56"}, + {2, "R3_w=inv14"}, + {3, "R3_w=inv56"}, }, }, @@ -161,19 +161,19 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {7, "R0_w=pkt(id=0,off=8,r=8,imm=0)"}, - {7, "R3_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, - {8, "R3_w=inv(id=0,umax_value=510,var_off=(0x0; 0x1fe))"}, - {9, "R3_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, - {10, "R3_w=inv(id=0,umax_value=2040,var_off=(0x0; 0x7f8))"}, - {11, "R3_w=inv(id=0,umax_value=4080,var_off=(0x0; 0xff0))"}, - {18, "R3=pkt_end(id=0,off=0,imm=0)"}, - {18, "R4_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, - {19, "R4_w=inv(id=0,umax_value=8160,var_off=(0x0; 0x1fe0))"}, - {20, "R4_w=inv(id=0,umax_value=4080,var_off=(0x0; 0xff0))"}, - {21, "R4_w=inv(id=0,umax_value=2040,var_off=(0x0; 0x7f8))"}, - {22, "R4_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, - {23, "R4_w=inv(id=0,umax_value=510,var_off=(0x0; 0x1fe))"}, + {6, "R0_w=pkt(id=0,off=8,r=8,imm=0)"}, + {6, "R3_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, + {7, "R3_w=inv(id=0,umax_value=510,var_off=(0x0; 0x1fe))"}, + {8, "R3_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {9, "R3_w=inv(id=0,umax_value=2040,var_off=(0x0; 0x7f8))"}, + {10, "R3_w=inv(id=0,umax_value=4080,var_off=(0x0; 0xff0))"}, + {12, "R3_w=pkt_end(id=0,off=0,imm=0)"}, + {17, "R4_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, + {18, "R4_w=inv(id=0,umax_value=8160,var_off=(0x0; 0x1fe0))"}, + {19, "R4_w=inv(id=0,umax_value=4080,var_off=(0x0; 0xff0))"}, + {20, "R4_w=inv(id=0,umax_value=2040,var_off=(0x0; 0x7f8))"}, + {21, "R4_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {22, "R4_w=inv(id=0,umax_value=510,var_off=(0x0; 0x1fe))"}, }, }, { @@ -194,16 +194,16 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {7, "R3_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, - {8, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, - {9, "R4_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, - {10, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, - {11, "R4_w=inv(id=0,umax_value=510,var_off=(0x0; 0x1fe))"}, - {12, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, - {13, "R4_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, - {14, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, - {15, "R4_w=inv(id=0,umax_value=2040,var_off=(0x0; 0x7f8))"}, - {16, "R4_w=inv(id=0,umax_value=4080,var_off=(0x0; 0xff0))"}, + {6, "R3_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, + {7, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, + {8, "R4_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, + {9, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, + {10, "R4_w=inv(id=0,umax_value=510,var_off=(0x0; 0x1fe))"}, + {11, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, + {12, "R4_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {13, "R4_w=inv(id=1,umax_value=255,var_off=(0x0; 0xff))"}, + {14, "R4_w=inv(id=0,umax_value=2040,var_off=(0x0; 0x7f8))"}, + {15, "R4_w=inv(id=0,umax_value=4080,var_off=(0x0; 0xff0))"}, }, }, { @@ -234,14 +234,14 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {4, "R5_w=pkt(id=0,off=0,r=0,imm=0)"}, - {5, "R5_w=pkt(id=0,off=14,r=0,imm=0)"}, - {6, "R4_w=pkt(id=0,off=14,r=0,imm=0)"}, - {10, "R2=pkt(id=0,off=0,r=18,imm=0)"}, + {2, "R5_w=pkt(id=0,off=0,r=0,imm=0)"}, + {4, "R5_w=pkt(id=0,off=14,r=0,imm=0)"}, + {5, "R4_w=pkt(id=0,off=14,r=0,imm=0)"}, + {9, "R2=pkt(id=0,off=0,r=18,imm=0)"}, {10, "R5=pkt(id=0,off=14,r=18,imm=0)"}, {10, "R4_w=inv(id=0,umax_value=255,var_off=(0x0; 0xff))"}, + {13, "R4_w=inv(id=0,umax_value=65535,var_off=(0x0; 0xffff))"}, {14, "R4_w=inv(id=0,umax_value=65535,var_off=(0x0; 0xffff))"}, - {15, "R4_w=inv(id=0,umax_value=65535,var_off=(0x0; 0xffff))"}, }, }, { @@ -296,8 +296,8 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {8, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, - {8, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {6, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, + {7, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Offset is added to packet pointer R5, resulting in * known fixed offset, and variable offset from R6. */ @@ -313,11 +313,11 @@ static struct bpf_align_test tests[] = { /* Variable offset is added to R5 packet pointer, * resulting in auxiliary alignment of 4. */ - {18, "R5_w=pkt(id=2,off=0,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {17, "R5_w=pkt(id=2,off=0,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Constant offset is added to R5, resulting in * reg->off of 14. */ - {19, "R5_w=pkt(id=2,off=14,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {18, "R5_w=pkt(id=2,off=14,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off * (14) which is 16. Then the variable offset is 4-byte @@ -329,18 +329,18 @@ static struct bpf_align_test tests[] = { /* Constant offset is added to R5 packet pointer, * resulting in reg->off value of 14. */ - {26, "R5_w=pkt(id=0,off=14,r=8"}, + {25, "R5_w=pkt(id=0,off=14,r=8"}, /* Variable offset is added to R5, resulting in a * variable offset of (4n). */ - {27, "R5_w=pkt(id=3,off=14,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {26, "R5_w=pkt(id=3,off=14,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Constant is added to R5 again, setting reg->off to 18. */ - {28, "R5_w=pkt(id=3,off=18,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {27, "R5_w=pkt(id=3,off=18,r=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* And once more we add a variable; resulting var_off * is still (4n), fixed offset is not changed. * Also, we create a new reg->id. */ - {29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc)"}, + {28, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (18) * which is 20. Then the variable offset is (4n), so @@ -386,13 +386,13 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {8, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, - {8, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {6, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, + {7, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Adding 14 makes R6 be (4n+2) */ - {9, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, + {8, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* Packet pointer has (4n+2) offset */ {11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, - {13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, + {12, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so @@ -403,12 +403,12 @@ static struct bpf_align_test tests[] = { /* Newly read value in R6 was shifted left by 2, so has * known alignment of 4. */ - {18, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {17, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Added (4n) to packet pointer's (4n+2) var_off, giving * another (4n+2). */ {19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, - {21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, + {20, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so @@ -448,18 +448,18 @@ static struct bpf_align_test tests[] = { .prog_type = BPF_PROG_TYPE_SCHED_CLS, .result = REJECT, .matches = { - {4, "R5_w=pkt_end(id=0,off=0,imm=0)"}, + {3, "R5_w=pkt_end(id=0,off=0,imm=0)"}, /* (ptr - ptr) << 2 == unknown, (4n) */ - {6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc)"}, + {5, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc)"}, /* (4n) + 14 == (4n+2). We blow our bounds, because * the add could overflow. */ - {7, "R5_w=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, + {6, "R5_w=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>=0 */ {9, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, /* packet pointer + nonnegative (4n+2) */ {11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, - {13, "R4_w=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, + {12, "R4_w=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. * We checked the bounds, but it might have been able * to overflow if the packet pointer started in the @@ -502,14 +502,14 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {7, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, - {9, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {6, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, + {8, "R6_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Adding 14 makes R6 be (4n+2) */ - {10, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, + {9, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* New unknown value in R7 is (4n) */ - {11, "R7_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, + {10, "R7_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Subtracting it from R6 blows our unsigned bounds */ - {12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, + {11, "R6=inv(id=0,smin_value=-1006,smax_value=1034,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>= 0 */ {14, "R6=inv(id=0,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* At the time the word size load is performed from R5, @@ -556,14 +556,14 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {7, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, - {10, "R6_w=inv(id=0,umax_value=60,var_off=(0x0; 0x3c))"}, + {6, "R2_w=pkt(id=0,off=0,r=8,imm=0)"}, + {9, "R6_w=inv(id=0,umax_value=60,var_off=(0x0; 0x3c))"}, /* Adding 14 makes R6 be (4n+2) */ - {11, "R6_w=inv(id=0,umin_value=14,umax_value=74,var_off=(0x2; 0x7c))"}, + {10, "R6_w=inv(id=0,umin_value=14,umax_value=74,var_off=(0x2; 0x7c))"}, /* Subtracting from packet pointer overflows ubounds */ {13, "R5_w=pkt(id=2,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c)"}, /* New unknown value in R7 is (4n), >= 76 */ - {15, "R7_w=inv(id=0,umin_value=76,umax_value=1096,var_off=(0x0; 0x7fc))"}, + {14, "R7_w=inv(id=0,umin_value=76,umax_value=1096,var_off=(0x0; 0x7fc))"}, /* Adding it to packet pointer gives nice bounds again */ {16, "R5_w=pkt(id=3,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"}, /* At the time the word size load is performed from R5, @@ -625,12 +625,15 @@ static int do_test_single(struct bpf_align_test *test) line_ptr = strtok(bpf_vlog_copy, "\n"); for (i = 0; i < MAX_MATCHES; i++) { struct bpf_reg_match m = test->matches[i]; + int tmp; if (!m.match) break; while (line_ptr) { cur_line = -1; sscanf(line_ptr, "%u: ", &cur_line); + if (cur_line == -1) + sscanf(line_ptr, "from %u to %u: ", &tmp, &cur_line); if (cur_line == m.line) break; line_ptr = strtok(NULL, "\n"); @@ -642,7 +645,19 @@ static int do_test_single(struct bpf_align_test *test) printf("%s", bpf_vlog); break; } + /* Check the next line as well in case the previous line + * did not have a corresponding bpf insn. Example: + * func#0 @0 + * 0: R1=ctx(id=0,off=0,imm=0) R10=fp0 + * 0: (b7) r3 = 2 ; R3_w=inv2 + */ if (!strstr(line_ptr, m.match)) { + cur_line = -1; + line_ptr = strtok(NULL, "\n"); + sscanf(line_ptr, "%u: ", &cur_line); + } + if (cur_line != m.line || !line_ptr || + !strstr(line_ptr, m.match)) { printf("Failed to find match %u: %s\n", m.line, m.match); ret = 1; diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c b/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c index 0a6c5f00abd4..dbe56fa8582d 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c @@ -65,8 +65,8 @@ void serial_test_bpf_obj_id(void) if (CHECK_FAIL(err)) goto done; - prog = bpf_object__find_program_by_title(objs[i], - "raw_tp/sys_enter"); + prog = bpf_object__find_program_by_name(objs[i], + "test_obj_id"); if (CHECK_FAIL(!prog)) goto done; links[i] = bpf_program__attach(prog); diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c index 8daca0ac909f..8f7a1cef7d87 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -217,7 +217,7 @@ static bool found; static int libbpf_debug_print(enum libbpf_print_level level, const char *format, va_list args) { - const char *log_buf; + const char *prog_name, *log_buf; if (level != LIBBPF_WARN || !strstr(format, "-- BEGIN PROG LOAD LOG --")) { @@ -225,15 +225,14 @@ static int libbpf_debug_print(enum libbpf_print_level level, return 0; } - /* skip prog_name */ - va_arg(args, char *); + prog_name = va_arg(args, char *); log_buf = va_arg(args, char *); if (!log_buf) goto out; if (err_str && strstr(log_buf, err_str) != NULL) found = true; out: - printf(format, log_buf); + printf(format, prog_name, log_buf); return 0; } diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c index 01b776a7beeb..8ba53acf9eb4 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf.c +++ b/tools/testing/selftests/bpf/prog_tests/btf.c @@ -22,7 +22,6 @@ #include <bpf/libbpf.h> #include <bpf/btf.h> -#include "bpf_rlimit.h" #include "bpf_util.h" #include "../test_btf.h" #include "test_progs.h" diff --git a/tools/testing/selftests/bpf/prog_tests/connect_force_port.c b/tools/testing/selftests/bpf/prog_tests/connect_force_port.c index ca574e1e30e6..9c4325f4aef2 100644 --- a/tools/testing/selftests/bpf/prog_tests/connect_force_port.c +++ b/tools/testing/selftests/bpf/prog_tests/connect_force_port.c @@ -67,9 +67,9 @@ static int run_test(int cgroup_fd, int server_fd, int family, int type) goto close_bpf_object; } - prog = bpf_object__find_program_by_title(obj, v4 ? - "cgroup/connect4" : - "cgroup/connect6"); + prog = bpf_object__find_program_by_name(obj, v4 ? + "connect4" : + "connect6"); if (CHECK(!prog, "find_prog", "connect prog not found\n")) { err = -EIO; goto close_bpf_object; @@ -83,9 +83,9 @@ static int run_test(int cgroup_fd, int server_fd, int family, int type) goto close_bpf_object; } - prog = bpf_object__find_program_by_title(obj, v4 ? - "cgroup/getpeername4" : - "cgroup/getpeername6"); + prog = bpf_object__find_program_by_name(obj, v4 ? + "getpeername4" : + "getpeername6"); if (CHECK(!prog, "find_prog", "getpeername prog not found\n")) { err = -EIO; goto close_bpf_object; @@ -99,9 +99,9 @@ static int run_test(int cgroup_fd, int server_fd, int family, int type) goto close_bpf_object; } - prog = bpf_object__find_program_by_title(obj, v4 ? - "cgroup/getsockname4" : - "cgroup/getsockname6"); + prog = bpf_object__find_program_by_name(obj, v4 ? + "getsockname4" : + "getsockname6"); if (CHECK(!prog, "find_prog", "getsockname prog not found\n")) { err = -EIO; goto close_bpf_object; diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c index 44a9868c70ea..b8bdd1c3efca 100644 --- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c +++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c @@ -10,7 +10,7 @@ static int duration = 0; #define STRUCT_TO_CHAR_PTR(struct_name) (const char *)&(struct struct_name) -#define MODULES_CASE(name, sec_name, tp_name) { \ +#define MODULES_CASE(name, pg_name, tp_name) { \ .case_name = name, \ .bpf_obj_file = "test_core_reloc_module.o", \ .btf_src_file = NULL, /* find in kernel module BTFs */ \ @@ -28,7 +28,7 @@ static int duration = 0; .comm_len = sizeof("test_progs"), \ }, \ .output_len = sizeof(struct core_reloc_module_output), \ - .prog_sec_name = sec_name, \ + .prog_name = pg_name, \ .raw_tp_name = tp_name, \ .trigger = __trigger_module_test_read, \ .needs_testmod = true, \ @@ -43,7 +43,9 @@ static int duration = 0; #define FLAVORS_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_flavors.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" \ + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_flavors" \ #define FLAVORS_CASE(name) { \ FLAVORS_CASE_COMMON(name), \ @@ -66,7 +68,9 @@ static int duration = 0; #define NESTING_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_nesting.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_nesting" \ #define NESTING_CASE(name) { \ NESTING_CASE_COMMON(name), \ @@ -91,7 +95,9 @@ static int duration = 0; #define ARRAYS_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_arrays.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_arrays" \ #define ARRAYS_CASE(name) { \ ARRAYS_CASE_COMMON(name), \ @@ -123,7 +129,9 @@ static int duration = 0; #define PRIMITIVES_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_primitives.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_primitives" \ #define PRIMITIVES_CASE(name) { \ PRIMITIVES_CASE_COMMON(name), \ @@ -158,6 +166,8 @@ static int duration = 0; .e = 5, .f = 6, .g = 7, .h = 8, \ }, \ .output_len = sizeof(struct core_reloc_mods_output), \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_mods", \ } #define PTR_AS_ARR_CASE(name) { \ @@ -174,6 +184,8 @@ static int duration = 0; .a = 3, \ }, \ .output_len = sizeof(struct core_reloc_ptr_as_arr), \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_ptr_as_arr", \ } #define INTS_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) { \ @@ -190,7 +202,9 @@ static int duration = 0; #define INTS_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_ints.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_ints" #define INTS_CASE(name) { \ INTS_CASE_COMMON(name), \ @@ -208,7 +222,9 @@ static int duration = 0; #define FIELD_EXISTS_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_existence.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" \ + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_existence" #define BITFIELDS_CASE_COMMON(objfile, test_name_prefix, name) \ .case_name = test_name_prefix#name, \ @@ -223,6 +239,8 @@ static int duration = 0; .output = STRUCT_TO_CHAR_PTR(core_reloc_bitfields_output) \ __VA_ARGS__, \ .output_len = sizeof(struct core_reloc_bitfields_output), \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_bitfields", \ }, { \ BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_direct.o", \ "direct:", name), \ @@ -231,7 +249,7 @@ static int duration = 0; .output = STRUCT_TO_CHAR_PTR(core_reloc_bitfields_output) \ __VA_ARGS__, \ .output_len = sizeof(struct core_reloc_bitfields_output), \ - .prog_sec_name = "tp_btf/sys_enter", \ + .prog_name = "test_core_bitfields_direct", \ } @@ -239,17 +257,21 @@ static int duration = 0; BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_probed.o", \ "probed:", name), \ .fails = true, \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_bitfields", \ }, { \ BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_direct.o", \ "direct:", name), \ - .prog_sec_name = "tp_btf/sys_enter", \ .fails = true, \ + .prog_name = "test_core_bitfields_direct", \ } #define SIZE_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_size.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_size" #define SIZE_OUTPUT_DATA(type) \ STRUCT_TO_CHAR_PTR(core_reloc_size_output) { \ @@ -277,8 +299,10 @@ static int duration = 0; #define TYPE_BASED_CASE_COMMON(name) \ .case_name = #name, \ - .bpf_obj_file = "test_core_reloc_type_based.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" \ + .bpf_obj_file = "test_core_reloc_type_based.o", \ + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_type_based" #define TYPE_BASED_CASE(name, ...) { \ TYPE_BASED_CASE_COMMON(name), \ @@ -295,7 +319,9 @@ static int duration = 0; #define TYPE_ID_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_type_id.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" \ + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_type_id" #define TYPE_ID_CASE(name, setup_fn) { \ TYPE_ID_CASE_COMMON(name), \ @@ -312,7 +338,9 @@ static int duration = 0; #define ENUMVAL_CASE_COMMON(name) \ .case_name = #name, \ .bpf_obj_file = "test_core_reloc_enumval.o", \ - .btf_src_file = "btf__core_reloc_" #name ".o" \ + .btf_src_file = "btf__core_reloc_" #name ".o", \ + .raw_tp_name = "sys_enter", \ + .prog_name = "test_core_enumval" #define ENUMVAL_CASE(name, ...) { \ ENUMVAL_CASE_COMMON(name), \ @@ -342,7 +370,7 @@ struct core_reloc_test_case { bool fails; bool needs_testmod; bool relaxed_core_relocs; - const char *prog_sec_name; + const char *prog_name; const char *raw_tp_name; setup_test_fn setup; trigger_test_fn trigger; @@ -497,11 +525,13 @@ static struct core_reloc_test_case test_cases[] = { .comm_len = sizeof("test_progs"), }, .output_len = sizeof(struct core_reloc_kernel_output), + .raw_tp_name = "sys_enter", + .prog_name = "test_core_kernel", }, /* validate we can find kernel module BTF types for relocs/attach */ - MODULES_CASE("module_probed", "raw_tp/bpf_testmod_test_read", "bpf_testmod_test_read"), - MODULES_CASE("module_direct", "tp_btf/bpf_testmod_test_read", NULL), + MODULES_CASE("module_probed", "test_core_module_probed", "bpf_testmod_test_read"), + MODULES_CASE("module_direct", "test_core_module_direct", NULL), /* validate BPF program can use multiple flavors to match against * single target BTF type @@ -580,6 +610,8 @@ static struct core_reloc_test_case test_cases[] = { .c = 0, /* BUG in clang, should be 3 */ }, .output_len = sizeof(struct core_reloc_misc_output), + .raw_tp_name = "sys_enter", + .prog_name = "test_core_misc", }, /* validate field existence checks */ @@ -848,14 +880,9 @@ void test_core_reloc(void) if (!ASSERT_OK_PTR(obj, "obj_open")) goto cleanup; - probe_name = "raw_tracepoint/sys_enter"; - tp_name = "sys_enter"; - if (test_case->prog_sec_name) { - probe_name = test_case->prog_sec_name; - tp_name = test_case->raw_tp_name; /* NULL for tp_btf */ - } - - prog = bpf_object__find_program_by_title(obj, probe_name); + probe_name = test_case->prog_name; + tp_name = test_case->raw_tp_name; /* NULL for tp_btf */ + prog = bpf_object__find_program_by_name(obj, probe_name); if (CHECK(!prog, "find_probe", "prog '%s' not found\n", probe_name)) goto cleanup; diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c index fdd603ebda28..c52f99f6a909 100644 --- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c +++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c @@ -101,6 +101,8 @@ static void test_fexit_bpf2bpf_common(const char *obj_file, for (i = 0; i < prog_cnt; i++) { struct bpf_link_info link_info; + struct bpf_program *pos; + const char *pos_sec_name; char *tgt_name; __s32 btf_id; @@ -109,7 +111,14 @@ static void test_fexit_bpf2bpf_common(const char *obj_file, goto close_prog; btf_id = btf__find_by_name_kind(btf, tgt_name + 1, BTF_KIND_FUNC); - prog[i] = bpf_object__find_program_by_title(obj, prog_name[i]); + prog[i] = NULL; + bpf_object__for_each_program(pos, obj) { + pos_sec_name = bpf_program__section_name(pos); + if (pos_sec_name && !strcmp(pos_sec_name, prog_name[i])) { + prog[i] = pos; + break; + } + } if (!ASSERT_OK_PTR(prog[i], prog_name[i])) goto close_prog; @@ -211,8 +220,8 @@ static void test_func_replace_verify(void) static int test_second_attach(struct bpf_object *obj) { - const char *prog_name = "freplace/get_constant"; - const char *tgt_name = prog_name + 9; /* cut off freplace/ */ + const char *prog_name = "security_new_get_constant"; + const char *tgt_name = "get_constant"; const char *tgt_obj_file = "./test_pkt_access.o"; struct bpf_program *prog = NULL; struct bpf_object *tgt_obj; @@ -220,7 +229,7 @@ static int test_second_attach(struct bpf_object *obj) struct bpf_link *link; int err = 0, tgt_fd; - prog = bpf_object__find_program_by_title(obj, prog_name); + prog = bpf_object__find_program_by_name(obj, prog_name); if (CHECK(!prog, "find_prog", "prog %s not found\n", prog_name)) return -ENOENT; diff --git a/tools/testing/selftests/bpf/prog_tests/get_func_args_test.c b/tools/testing/selftests/bpf/prog_tests/get_func_args_test.c new file mode 100644 index 000000000000..85c427119fe9 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/get_func_args_test.c @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include "get_func_args_test.skel.h" + +void test_get_func_args_test(void) +{ + struct get_func_args_test *skel = NULL; + __u32 duration = 0, retval; + int err, prog_fd; + + skel = get_func_args_test__open_and_load(); + if (!ASSERT_OK_PTR(skel, "get_func_args_test__open_and_load")) + return; + + err = get_func_args_test__attach(skel); + if (!ASSERT_OK(err, "get_func_args_test__attach")) + goto cleanup; + + /* This runs bpf_fentry_test* functions and triggers + * fentry/fexit programs. + */ + prog_fd = bpf_program__fd(skel->progs.test1); + err = bpf_prog_test_run(prog_fd, 1, NULL, 0, + NULL, NULL, &retval, &duration); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(retval, 0, "test_run"); + + /* This runs bpf_modify_return_test function and triggers + * fmod_ret_test and fexit_test programs. + */ + prog_fd = bpf_program__fd(skel->progs.fmod_ret_test); + err = bpf_prog_test_run(prog_fd, 1, NULL, 0, + NULL, NULL, &retval, &duration); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(retval, 1234, "test_run"); + + ASSERT_EQ(skel->bss->test1_result, 1, "test1_result"); + ASSERT_EQ(skel->bss->test2_result, 1, "test2_result"); + ASSERT_EQ(skel->bss->test3_result, 1, "test3_result"); + ASSERT_EQ(skel->bss->test4_result, 1, "test4_result"); + +cleanup: + get_func_args_test__destroy(skel); +} diff --git a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c index 977ab433a946..e834a01de16a 100644 --- a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c +++ b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c @@ -89,7 +89,7 @@ void test_get_stack_raw_tp(void) { const char *file = "./test_get_stack_rawtp.o"; const char *file_err = "./test_get_stack_rawtp_err.o"; - const char *prog_name = "raw_tracepoint/sys_enter"; + const char *prog_name = "bpf_prog1"; int i, err, prog_fd, exp_cnt = MAX_CNT_RAWTP; struct perf_buffer *pb = NULL; struct bpf_link *link = NULL; @@ -107,7 +107,7 @@ void test_get_stack_raw_tp(void) if (CHECK(err, "prog_load raw tp", "err %d errno %d\n", err, errno)) return; - prog = bpf_object__find_program_by_title(obj, prog_name); + prog = bpf_object__find_program_by_name(obj, prog_name); if (CHECK(!prog, "find_probe", "prog '%s' not found\n", prog_name)) goto close_prog; diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c b/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c index 79f6bd1e50d6..f6933b06daf8 100644 --- a/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c +++ b/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c @@ -8,6 +8,7 @@ #include "test_ksyms_btf_null_check.skel.h" #include "test_ksyms_weak.skel.h" #include "test_ksyms_weak.lskel.h" +#include "test_ksyms_btf_write_check.skel.h" static int duration; @@ -137,6 +138,16 @@ cleanup: test_ksyms_weak_lskel__destroy(skel); } +static void test_write_check(void) +{ + struct test_ksyms_btf_write_check *skel; + + skel = test_ksyms_btf_write_check__open_and_load(); + ASSERT_ERR_PTR(skel, "unexpected load of a prog writing to ksym memory\n"); + + test_ksyms_btf_write_check__destroy(skel); +} + void test_ksyms_btf(void) { int percpu_datasec; @@ -167,4 +178,7 @@ void test_ksyms_btf(void) if (test__start_subtest("weak_ksyms_lskel")) test_weak_syms_lskel(); + + if (test__start_subtest("write_check")) + test_write_check(); } diff --git a/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c b/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c new file mode 100644 index 000000000000..9f766ddd946a --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c @@ -0,0 +1,124 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2021 Facebook */ + +#include <test_progs.h> +#include <bpf/btf.h> + +void test_libbpf_probe_prog_types(void) +{ + struct btf *btf; + const struct btf_type *t; + const struct btf_enum *e; + int i, n, id; + + btf = btf__parse("/sys/kernel/btf/vmlinux", NULL); + if (!ASSERT_OK_PTR(btf, "btf_parse")) + return; + + /* find enum bpf_prog_type and enumerate each value */ + id = btf__find_by_name_kind(btf, "bpf_prog_type", BTF_KIND_ENUM); + if (!ASSERT_GT(id, 0, "bpf_prog_type_id")) + goto cleanup; + t = btf__type_by_id(btf, id); + if (!ASSERT_OK_PTR(t, "bpf_prog_type_enum")) + goto cleanup; + + for (e = btf_enum(t), i = 0, n = btf_vlen(t); i < n; e++, i++) { + const char *prog_type_name = btf__str_by_offset(btf, e->name_off); + enum bpf_prog_type prog_type = (enum bpf_prog_type)e->val; + int res; + + if (prog_type == BPF_PROG_TYPE_UNSPEC) + continue; + + if (!test__start_subtest(prog_type_name)) + continue; + + res = libbpf_probe_bpf_prog_type(prog_type, NULL); + ASSERT_EQ(res, 1, prog_type_name); + } + +cleanup: + btf__free(btf); +} + +void test_libbpf_probe_map_types(void) +{ + struct btf *btf; + const struct btf_type *t; + const struct btf_enum *e; + int i, n, id; + + btf = btf__parse("/sys/kernel/btf/vmlinux", NULL); + if (!ASSERT_OK_PTR(btf, "btf_parse")) + return; + + /* find enum bpf_map_type and enumerate each value */ + id = btf__find_by_name_kind(btf, "bpf_map_type", BTF_KIND_ENUM); + if (!ASSERT_GT(id, 0, "bpf_map_type_id")) + goto cleanup; + t = btf__type_by_id(btf, id); + if (!ASSERT_OK_PTR(t, "bpf_map_type_enum")) + goto cleanup; + + for (e = btf_enum(t), i = 0, n = btf_vlen(t); i < n; e++, i++) { + const char *map_type_name = btf__str_by_offset(btf, e->name_off); + enum bpf_map_type map_type = (enum bpf_map_type)e->val; + int res; + + if (map_type == BPF_MAP_TYPE_UNSPEC) + continue; + + if (!test__start_subtest(map_type_name)) + continue; + + res = libbpf_probe_bpf_map_type(map_type, NULL); + ASSERT_EQ(res, 1, map_type_name); + } + +cleanup: + btf__free(btf); +} + +void test_libbpf_probe_helpers(void) +{ +#define CASE(prog, helper, supp) { \ + .prog_type_name = "BPF_PROG_TYPE_" # prog, \ + .helper_name = "bpf_" # helper, \ + .prog_type = BPF_PROG_TYPE_ ## prog, \ + .helper_id = BPF_FUNC_ ## helper, \ + .supported = supp, \ +} + const struct case_def { + const char *prog_type_name; + const char *helper_name; + enum bpf_prog_type prog_type; + enum bpf_func_id helper_id; + bool supported; + } cases[] = { + CASE(KPROBE, unspec, false), + CASE(KPROBE, map_lookup_elem, true), + CASE(KPROBE, loop, true), + + CASE(KPROBE, ktime_get_coarse_ns, false), + CASE(SOCKET_FILTER, ktime_get_coarse_ns, true), + + CASE(KPROBE, sys_bpf, false), + CASE(SYSCALL, sys_bpf, true), + }; + size_t case_cnt = ARRAY_SIZE(cases), i; + char buf[128]; + + for (i = 0; i < case_cnt; i++) { + const struct case_def *d = &cases[i]; + int res; + + snprintf(buf, sizeof(buf), "%s+%s", d->prog_type_name, d->helper_name); + + if (!test__start_subtest(buf)) + continue; + + res = libbpf_probe_bpf_helper(d->prog_type, d->helper_id, NULL); + ASSERT_EQ(res, d->supported, buf); + } +} diff --git a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c index 980ac0f2c0bb..1cbd8cd64044 100644 --- a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c +++ b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c @@ -18,7 +18,6 @@ #include <netinet/in.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> -#include "bpf_rlimit.h" #include "bpf_util.h" #include "test_progs.h" diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c index 57846cc7ce36..597d0467a926 100644 --- a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c +++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c @@ -30,7 +30,6 @@ #include <bpf/bpf.h> #include "test_progs.h" -#include "bpf_rlimit.h" #include "bpf_util.h" #include "cgroup_helpers.h" #include "network_helpers.h" diff --git a/tools/testing/selftests/bpf/prog_tests/sock_fields.c b/tools/testing/selftests/bpf/prog_tests/sock_fields.c index fae40db4d81f..9fc040eaa482 100644 --- a/tools/testing/selftests/bpf/prog_tests/sock_fields.c +++ b/tools/testing/selftests/bpf/prog_tests/sock_fields.c @@ -15,7 +15,6 @@ #include "network_helpers.h" #include "cgroup_helpers.h" #include "test_progs.h" -#include "bpf_rlimit.h" #include "test_sock_fields.skel.h" enum bpf_linum_array_idx { diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c index 6a953f4adfdc..8ed78a9383ba 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c +++ b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c @@ -136,7 +136,8 @@ static int start_server(void) return fd; } -static int prog_attach(struct bpf_object *obj, int cgroup_fd, const char *title) +static int prog_attach(struct bpf_object *obj, int cgroup_fd, const char *title, + const char *prog_name) { enum bpf_attach_type attach_type; enum bpf_prog_type prog_type; @@ -145,20 +146,20 @@ static int prog_attach(struct bpf_object *obj, int cgroup_fd, const char *title) err = libbpf_prog_type_by_name(title, &prog_type, &attach_type); if (err) { - log_err("Failed to deduct types for %s BPF program", title); + log_err("Failed to deduct types for %s BPF program", prog_name); return -1; } - prog = bpf_object__find_program_by_title(obj, title); + prog = bpf_object__find_program_by_name(obj, prog_name); if (!prog) { - log_err("Failed to find %s BPF program", title); + log_err("Failed to find %s BPF program", prog_name); return -1; } err = bpf_prog_attach(bpf_program__fd(prog), cgroup_fd, attach_type, 0); if (err) { - log_err("Failed to attach %s BPF program", title); + log_err("Failed to attach %s BPF program", prog_name); return -1; } @@ -181,11 +182,11 @@ static void run_test(int cgroup_fd) if (!ASSERT_OK(err, "obj_load")) goto close_bpf_object; - err = prog_attach(obj, cgroup_fd, "cgroup/getsockopt"); + err = prog_attach(obj, cgroup_fd, "cgroup/getsockopt", "_getsockopt"); if (CHECK_FAIL(err)) goto close_bpf_object; - err = prog_attach(obj, cgroup_fd, "cgroup/setsockopt"); + err = prog_attach(obj, cgroup_fd, "cgroup/setsockopt", "_setsockopt"); if (CHECK_FAIL(err)) goto close_bpf_object; diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c index 337493d74ec5..313f0a66232e 100644 --- a/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c +++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c @@ -4,7 +4,7 @@ void test_stacktrace_map(void) { int control_map_fd, stackid_hmap_fd, stackmap_fd, stack_amap_fd; - const char *prog_name = "tracepoint/sched/sched_switch"; + const char *prog_name = "oncpu"; int err, prog_fd, stack_trace_len; const char *file = "./test_stacktrace_map.o"; __u32 key, val, duration = 0; @@ -16,7 +16,7 @@ void test_stacktrace_map(void) if (CHECK(err, "prog_load", "err %d errno %d\n", err, errno)) return; - prog = bpf_object__find_program_by_title(obj, prog_name); + prog = bpf_object__find_program_by_name(obj, prog_name); if (CHECK(!prog, "find_prog", "prog '%s' not found\n", prog_name)) goto close_prog; diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c index 063a14a2060d..1cb8dd36bd8f 100644 --- a/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c +++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c @@ -3,7 +3,7 @@ void test_stacktrace_map_raw_tp(void) { - const char *prog_name = "tracepoint/sched/sched_switch"; + const char *prog_name = "oncpu"; int control_map_fd, stackid_hmap_fd, stackmap_fd; const char *file = "./test_stacktrace_map.o"; __u32 key, val, duration = 0; @@ -16,7 +16,7 @@ void test_stacktrace_map_raw_tp(void) if (CHECK(err, "prog_load raw tp", "err %d errno %d\n", err, errno)) return; - prog = bpf_object__find_program_by_title(obj, prog_name); + prog = bpf_object__find_program_by_name(obj, prog_name); if (CHECK(!prog, "find_prog", "prog '%s' not found\n", prog_name)) goto close_prog; diff --git a/tools/testing/selftests/bpf/prog_tests/test_local_storage.c b/tools/testing/selftests/bpf/prog_tests/test_local_storage.c index d2c16eaae367..26ac26a88026 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_local_storage.c +++ b/tools/testing/selftests/bpf/prog_tests/test_local_storage.c @@ -28,10 +28,6 @@ static unsigned int duration; struct storage { void *inode; unsigned int value; - /* Lock ensures that spin locked versions of local stoage operations - * also work, most operations in this tests are still single threaded - */ - struct bpf_spin_lock lock; }; /* Fork and exec the provided rm binary and return the exit code of the @@ -66,27 +62,24 @@ static int run_self_unlink(int *monitored_pid, const char *rm_path) static bool check_syscall_operations(int map_fd, int obj_fd) { - struct storage val = { .value = TEST_STORAGE_VALUE, .lock = { 0 } }, - lookup_val = { .value = 0, .lock = { 0 } }; + struct storage val = { .value = TEST_STORAGE_VALUE }, + lookup_val = { .value = 0 }; int err; /* Looking up an existing element should fail initially */ - err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, - BPF_F_LOCK); + err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, 0); if (CHECK(!err || errno != ENOENT, "bpf_map_lookup_elem", "err:%d errno:%d\n", err, errno)) return false; /* Create a new element */ - err = bpf_map_update_elem(map_fd, &obj_fd, &val, - BPF_NOEXIST | BPF_F_LOCK); + err = bpf_map_update_elem(map_fd, &obj_fd, &val, BPF_NOEXIST); if (CHECK(err < 0, "bpf_map_update_elem", "err:%d errno:%d\n", err, errno)) return false; /* Lookup the newly created element */ - err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, - BPF_F_LOCK); + err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, 0); if (CHECK(err < 0, "bpf_map_lookup_elem", "err:%d errno:%d", err, errno)) return false; @@ -102,8 +95,7 @@ static bool check_syscall_operations(int map_fd, int obj_fd) return false; /* The lookup should fail, now that the element has been deleted */ - err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, - BPF_F_LOCK); + err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, 0); if (CHECK(!err || errno != ENOENT, "bpf_map_lookup_elem", "err:%d errno:%d\n", err, errno)) return false; diff --git a/tools/testing/selftests/bpf/prog_tests/test_overhead.c b/tools/testing/selftests/bpf/prog_tests/test_overhead.c index 123c68c1917d..05acb376f74d 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_overhead.c +++ b/tools/testing/selftests/bpf/prog_tests/test_overhead.c @@ -56,11 +56,11 @@ static void setaffinity(void) void test_test_overhead(void) { - const char *kprobe_name = "kprobe/__set_task_comm"; - const char *kretprobe_name = "kretprobe/__set_task_comm"; - const char *raw_tp_name = "raw_tp/task_rename"; - const char *fentry_name = "fentry/__set_task_comm"; - const char *fexit_name = "fexit/__set_task_comm"; + const char *kprobe_name = "prog1"; + const char *kretprobe_name = "prog2"; + const char *raw_tp_name = "prog3"; + const char *fentry_name = "prog4"; + const char *fexit_name = "prog5"; const char *kprobe_func = "__set_task_comm"; struct bpf_program *kprobe_prog, *kretprobe_prog, *raw_tp_prog; struct bpf_program *fentry_prog, *fexit_prog; @@ -76,23 +76,23 @@ void test_test_overhead(void) if (!ASSERT_OK_PTR(obj, "obj_open_file")) return; - kprobe_prog = bpf_object__find_program_by_title(obj, kprobe_name); + kprobe_prog = bpf_object__find_program_by_name(obj, kprobe_name); if (CHECK(!kprobe_prog, "find_probe", "prog '%s' not found\n", kprobe_name)) goto cleanup; - kretprobe_prog = bpf_object__find_program_by_title(obj, kretprobe_name); + kretprobe_prog = bpf_object__find_program_by_name(obj, kretprobe_name); if (CHECK(!kretprobe_prog, "find_probe", "prog '%s' not found\n", kretprobe_name)) goto cleanup; - raw_tp_prog = bpf_object__find_program_by_title(obj, raw_tp_name); + raw_tp_prog = bpf_object__find_program_by_name(obj, raw_tp_name); if (CHECK(!raw_tp_prog, "find_probe", "prog '%s' not found\n", raw_tp_name)) goto cleanup; - fentry_prog = bpf_object__find_program_by_title(obj, fentry_name); + fentry_prog = bpf_object__find_program_by_name(obj, fentry_name); if (CHECK(!fentry_prog, "find_probe", "prog '%s' not found\n", fentry_name)) goto cleanup; - fexit_prog = bpf_object__find_program_by_title(obj, fexit_name); + fexit_prog = bpf_object__find_program_by_name(obj, fexit_name); if (CHECK(!fexit_prog, "find_probe", "prog '%s' not found\n", fexit_name)) goto cleanup; diff --git a/tools/testing/selftests/bpf/prog_tests/test_strncmp.c b/tools/testing/selftests/bpf/prog_tests/test_strncmp.c new file mode 100644 index 000000000000..b57a3009465f --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/test_strncmp.c @@ -0,0 +1,167 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2021. Huawei Technologies Co., Ltd */ +#include <test_progs.h> +#include "strncmp_test.skel.h" + +static int trigger_strncmp(const struct strncmp_test *skel) +{ + int cmp; + + usleep(1); + + cmp = skel->bss->cmp_ret; + if (cmp > 0) + return 1; + if (cmp < 0) + return -1; + return 0; +} + +/* + * Compare str and target after making str[i] != target[i]. + * When exp is -1, make str[i] < target[i] and delta = -1. + */ +static void strncmp_full_str_cmp(struct strncmp_test *skel, const char *name, + int exp) +{ + size_t nr = sizeof(skel->bss->str); + char *str = skel->bss->str; + int delta = exp; + int got; + size_t i; + + memcpy(str, skel->rodata->target, nr); + for (i = 0; i < nr - 1; i++) { + str[i] += delta; + + got = trigger_strncmp(skel); + ASSERT_EQ(got, exp, name); + + str[i] -= delta; + } +} + +static void test_strncmp_ret(void) +{ + struct strncmp_test *skel; + struct bpf_program *prog; + int err, got; + + skel = strncmp_test__open(); + if (!ASSERT_OK_PTR(skel, "strncmp_test open")) + return; + + bpf_object__for_each_program(prog, skel->obj) + bpf_program__set_autoload(prog, false); + + bpf_program__set_autoload(skel->progs.do_strncmp, true); + + err = strncmp_test__load(skel); + if (!ASSERT_EQ(err, 0, "strncmp_test load")) + goto out; + + err = strncmp_test__attach(skel); + if (!ASSERT_EQ(err, 0, "strncmp_test attach")) + goto out; + + skel->bss->target_pid = getpid(); + + /* Empty str */ + skel->bss->str[0] = '\0'; + got = trigger_strncmp(skel); + ASSERT_EQ(got, -1, "strncmp: empty str"); + + /* Same string */ + memcpy(skel->bss->str, skel->rodata->target, sizeof(skel->bss->str)); + got = trigger_strncmp(skel); + ASSERT_EQ(got, 0, "strncmp: same str"); + + /* Not-null-termainted string */ + memcpy(skel->bss->str, skel->rodata->target, sizeof(skel->bss->str)); + skel->bss->str[sizeof(skel->bss->str) - 1] = 'A'; + got = trigger_strncmp(skel); + ASSERT_EQ(got, 1, "strncmp: not-null-term str"); + + strncmp_full_str_cmp(skel, "strncmp: less than", -1); + strncmp_full_str_cmp(skel, "strncmp: greater than", 1); +out: + strncmp_test__destroy(skel); +} + +static void test_strncmp_bad_not_const_str_size(void) +{ + struct strncmp_test *skel; + struct bpf_program *prog; + int err; + + skel = strncmp_test__open(); + if (!ASSERT_OK_PTR(skel, "strncmp_test open")) + return; + + bpf_object__for_each_program(prog, skel->obj) + bpf_program__set_autoload(prog, false); + + bpf_program__set_autoload(skel->progs.strncmp_bad_not_const_str_size, + true); + + err = strncmp_test__load(skel); + ASSERT_ERR(err, "strncmp_test load bad_not_const_str_size"); + + strncmp_test__destroy(skel); +} + +static void test_strncmp_bad_writable_target(void) +{ + struct strncmp_test *skel; + struct bpf_program *prog; + int err; + + skel = strncmp_test__open(); + if (!ASSERT_OK_PTR(skel, "strncmp_test open")) + return; + + bpf_object__for_each_program(prog, skel->obj) + bpf_program__set_autoload(prog, false); + + bpf_program__set_autoload(skel->progs.strncmp_bad_writable_target, + true); + + err = strncmp_test__load(skel); + ASSERT_ERR(err, "strncmp_test load bad_writable_target"); + + strncmp_test__destroy(skel); +} + +static void test_strncmp_bad_not_null_term_target(void) +{ + struct strncmp_test *skel; + struct bpf_program *prog; + int err; + + skel = strncmp_test__open(); + if (!ASSERT_OK_PTR(skel, "strncmp_test open")) + return; + + bpf_object__for_each_program(prog, skel->obj) + bpf_program__set_autoload(prog, false); + + bpf_program__set_autoload(skel->progs.strncmp_bad_not_null_term_target, + true); + + err = strncmp_test__load(skel); + ASSERT_ERR(err, "strncmp_test load bad_not_null_term_target"); + + strncmp_test__destroy(skel); +} + +void test_test_strncmp(void) +{ + if (test__start_subtest("strncmp_ret")) + test_strncmp_ret(); + if (test__start_subtest("strncmp_bad_not_const_str_size")) + test_strncmp_bad_not_const_str_size(); + if (test__start_subtest("strncmp_bad_writable_target")) + test_strncmp_bad_writable_target(); + if (test__start_subtest("strncmp_bad_not_null_term_target")) + test_strncmp_bad_not_null_term_target(); +} diff --git a/tools/testing/selftests/bpf/prog_tests/trampoline_count.c b/tools/testing/selftests/bpf/prog_tests/trampoline_count.c index fc146671b20a..9c795ee52b7b 100644 --- a/tools/testing/selftests/bpf/prog_tests/trampoline_count.c +++ b/tools/testing/selftests/bpf/prog_tests/trampoline_count.c @@ -35,7 +35,7 @@ static struct bpf_link *load(struct bpf_object *obj, const char *name) struct bpf_program *prog; int duration = 0; - prog = bpf_object__find_program_by_title(obj, name); + prog = bpf_object__find_program_by_name(obj, name); if (CHECK(!prog, "find_probe", "prog '%s' not found\n", name)) return ERR_PTR(-EINVAL); return bpf_program__attach_trace(prog); @@ -44,8 +44,8 @@ static struct bpf_link *load(struct bpf_object *obj, const char *name) /* TODO: use different target function to run in concurrent mode */ void serial_test_trampoline_count(void) { - const char *fentry_name = "fentry/__set_task_comm"; - const char *fexit_name = "fexit/__set_task_comm"; + const char *fentry_name = "prog1"; + const char *fexit_name = "prog2"; const char *object = "test_trampoline_count.o"; struct inst inst[MAX_TRAMP_PROGS] = {}; int err, i = 0, duration = 0; diff --git a/tools/testing/selftests/bpf/progs/get_func_args_test.c b/tools/testing/selftests/bpf/progs/get_func_args_test.c new file mode 100644 index 000000000000..e0f34a55e697 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/get_func_args_test.c @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include <errno.h> + +char _license[] SEC("license") = "GPL"; + +__u64 test1_result = 0; +SEC("fentry/bpf_fentry_test1") +int BPF_PROG(test1) +{ + __u64 cnt = bpf_get_func_arg_cnt(ctx); + __u64 a = 0, z = 0, ret = 0; + __s64 err; + + test1_result = cnt == 1; + + /* valid arguments */ + err = bpf_get_func_arg(ctx, 0, &a); + + /* We need to cast access to traced function argument values with + * proper type cast, because trampoline uses type specific instruction + * to save it, like for 'int a' with 32-bit mov like: + * + * mov %edi,-0x8(%rbp) + * + * so the upper 4 bytes are not zeroed. + */ + test1_result &= err == 0 && ((int) a == 1); + + /* not valid argument */ + err = bpf_get_func_arg(ctx, 1, &z); + test1_result &= err == -EINVAL; + + /* return value fails in fentry */ + err = bpf_get_func_ret(ctx, &ret); + test1_result &= err == -EOPNOTSUPP; + return 0; +} + +__u64 test2_result = 0; +SEC("fexit/bpf_fentry_test2") +int BPF_PROG(test2) +{ + __u64 cnt = bpf_get_func_arg_cnt(ctx); + __u64 a = 0, b = 0, z = 0, ret = 0; + __s64 err; + + test2_result = cnt == 2; + + /* valid arguments */ + err = bpf_get_func_arg(ctx, 0, &a); + test2_result &= err == 0 && (int) a == 2; + + err = bpf_get_func_arg(ctx, 1, &b); + test2_result &= err == 0 && b == 3; + + /* not valid argument */ + err = bpf_get_func_arg(ctx, 2, &z); + test2_result &= err == -EINVAL; + + /* return value */ + err = bpf_get_func_ret(ctx, &ret); + test2_result &= err == 0 && ret == 5; + return 0; +} + +__u64 test3_result = 0; +SEC("fmod_ret/bpf_modify_return_test") +int BPF_PROG(fmod_ret_test, int _a, int *_b, int _ret) +{ + __u64 cnt = bpf_get_func_arg_cnt(ctx); + __u64 a = 0, b = 0, z = 0, ret = 0; + __s64 err; + + test3_result = cnt == 2; + + /* valid arguments */ + err = bpf_get_func_arg(ctx, 0, &a); + test3_result &= err == 0 && ((int) a == 1); + + err = bpf_get_func_arg(ctx, 1, &b); + test3_result &= err == 0 && ((int *) b == _b); + + /* not valid argument */ + err = bpf_get_func_arg(ctx, 2, &z); + test3_result &= err == -EINVAL; + + /* return value */ + err = bpf_get_func_ret(ctx, &ret); + test3_result &= err == 0 && ret == 0; + + /* change return value, it's checked in fexit_test program */ + return 1234; +} + +__u64 test4_result = 0; +SEC("fexit/bpf_modify_return_test") +int BPF_PROG(fexit_test, int _a, int *_b, int _ret) +{ + __u64 cnt = bpf_get_func_arg_cnt(ctx); + __u64 a = 0, b = 0, z = 0, ret = 0; + __s64 err; + + test4_result = cnt == 2; + + /* valid arguments */ + err = bpf_get_func_arg(ctx, 0, &a); + test4_result &= err == 0 && ((int) a == 1); + + err = bpf_get_func_arg(ctx, 1, &b); + test4_result &= err == 0 && ((int *) b == _b); + + /* not valid argument */ + err = bpf_get_func_arg(ctx, 2, &z); + test4_result &= err == -EINVAL; + + /* return value */ + err = bpf_get_func_ret(ctx, &ret); + test4_result &= err == 0 && ret == 1234; + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/local_storage.c b/tools/testing/selftests/bpf/progs/local_storage.c index 95868bc7ada9..9b1f9b75d5c2 100644 --- a/tools/testing/selftests/bpf/progs/local_storage.c +++ b/tools/testing/selftests/bpf/progs/local_storage.c @@ -20,7 +20,6 @@ int sk_storage_result = -1; struct local_storage { struct inode *exec_inode; __u32 value; - struct bpf_spin_lock lock; }; struct { @@ -58,9 +57,7 @@ int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim) bpf_get_current_task_btf(), 0, 0); if (storage) { /* Don't let an executable delete itself */ - bpf_spin_lock(&storage->lock); is_self_unlink = storage->exec_inode == victim->d_inode; - bpf_spin_unlock(&storage->lock); if (is_self_unlink) return -EPERM; } @@ -68,7 +65,7 @@ int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim) return 0; } -SEC("lsm/inode_rename") +SEC("lsm.s/inode_rename") int BPF_PROG(inode_rename, struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) @@ -89,10 +86,8 @@ int BPF_PROG(inode_rename, struct inode *old_dir, struct dentry *old_dentry, if (!storage) return 0; - bpf_spin_lock(&storage->lock); if (storage->value != DUMMY_STORAGE_VALUE) inode_storage_result = -1; - bpf_spin_unlock(&storage->lock); err = bpf_inode_storage_delete(&inode_storage_map, old_dentry->d_inode); if (!err) @@ -101,7 +96,7 @@ int BPF_PROG(inode_rename, struct inode *old_dir, struct dentry *old_dentry, return 0; } -SEC("lsm/socket_bind") +SEC("lsm.s/socket_bind") int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address, int addrlen) { @@ -117,10 +112,8 @@ int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address, if (!storage) return 0; - bpf_spin_lock(&storage->lock); if (storage->value != DUMMY_STORAGE_VALUE) sk_storage_result = -1; - bpf_spin_unlock(&storage->lock); err = bpf_sk_storage_delete(&sk_storage_map, sock->sk); if (!err) @@ -129,7 +122,7 @@ int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address, return 0; } -SEC("lsm/socket_post_create") +SEC("lsm.s/socket_post_create") int BPF_PROG(socket_post_create, struct socket *sock, int family, int type, int protocol, int kern) { @@ -144,9 +137,7 @@ int BPF_PROG(socket_post_create, struct socket *sock, int family, int type, if (!storage) return 0; - bpf_spin_lock(&storage->lock); storage->value = DUMMY_STORAGE_VALUE; - bpf_spin_unlock(&storage->lock); return 0; } @@ -154,7 +145,7 @@ int BPF_PROG(socket_post_create, struct socket *sock, int family, int type, /* This uses the local storage to remember the inode of the binary that a * process was originally executing. */ -SEC("lsm/bprm_committed_creds") +SEC("lsm.s/bprm_committed_creds") void BPF_PROG(exec, struct linux_binprm *bprm) { __u32 pid = bpf_get_current_pid_tgid() >> 32; @@ -166,18 +157,13 @@ void BPF_PROG(exec, struct linux_binprm *bprm) storage = bpf_task_storage_get(&task_storage_map, bpf_get_current_task_btf(), 0, BPF_LOCAL_STORAGE_GET_F_CREATE); - if (storage) { - bpf_spin_lock(&storage->lock); + if (storage) storage->exec_inode = bprm->file->f_inode; - bpf_spin_unlock(&storage->lock); - } storage = bpf_inode_storage_get(&inode_storage_map, bprm->file->f_inode, 0, BPF_LOCAL_STORAGE_GET_F_CREATE); if (!storage) return; - bpf_spin_lock(&storage->lock); storage->value = DUMMY_STORAGE_VALUE; - bpf_spin_unlock(&storage->lock); } diff --git a/tools/testing/selftests/bpf/progs/strncmp_bench.c b/tools/testing/selftests/bpf/progs/strncmp_bench.c new file mode 100644 index 000000000000..18373a7df76e --- /dev/null +++ b/tools/testing/selftests/bpf/progs/strncmp_bench.c @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2021. Huawei Technologies Co., Ltd */ +#include <linux/types.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +#define STRNCMP_STR_SZ 4096 + +/* Will be updated by benchmark before program loading */ +const volatile unsigned int cmp_str_len = 1; +const char target[STRNCMP_STR_SZ]; + +long hits = 0; +char str[STRNCMP_STR_SZ]; + +char _license[] SEC("license") = "GPL"; + +static __always_inline int local_strncmp(const char *s1, unsigned int sz, + const char *s2) +{ + int ret = 0; + unsigned int i; + + for (i = 0; i < sz; i++) { + /* E.g. 0xff > 0x31 */ + ret = (unsigned char)s1[i] - (unsigned char)s2[i]; + if (ret || !s1[i]) + break; + } + + return ret; +} + +SEC("tp/syscalls/sys_enter_getpgid") +int strncmp_no_helper(void *ctx) +{ + if (local_strncmp(str, cmp_str_len + 1, target) < 0) + __sync_add_and_fetch(&hits, 1); + return 0; +} + +SEC("tp/syscalls/sys_enter_getpgid") +int strncmp_helper(void *ctx) +{ + if (bpf_strncmp(str, cmp_str_len + 1, target) < 0) + __sync_add_and_fetch(&hits, 1); + return 0; +} + diff --git a/tools/testing/selftests/bpf/progs/strncmp_test.c b/tools/testing/selftests/bpf/progs/strncmp_test.c new file mode 100644 index 000000000000..900d930d48a8 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/strncmp_test.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2021. Huawei Technologies Co., Ltd */ +#include <stdbool.h> +#include <linux/types.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +#define STRNCMP_STR_SZ 8 + +const char target[STRNCMP_STR_SZ] = "EEEEEEE"; +char str[STRNCMP_STR_SZ]; +int cmp_ret = 0; +int target_pid = 0; + +const char no_str_target[STRNCMP_STR_SZ] = "12345678"; +char writable_target[STRNCMP_STR_SZ]; +unsigned int no_const_str_size = STRNCMP_STR_SZ; + +char _license[] SEC("license") = "GPL"; + +SEC("tp/syscalls/sys_enter_nanosleep") +int do_strncmp(void *ctx) +{ + if ((bpf_get_current_pid_tgid() >> 32) != target_pid) + return 0; + + cmp_ret = bpf_strncmp(str, STRNCMP_STR_SZ, target); + return 0; +} + +SEC("tp/syscalls/sys_enter_nanosleep") +int strncmp_bad_not_const_str_size(void *ctx) +{ + /* The value of string size is not const, so will fail */ + cmp_ret = bpf_strncmp(str, no_const_str_size, target); + return 0; +} + +SEC("tp/syscalls/sys_enter_nanosleep") +int strncmp_bad_writable_target(void *ctx) +{ + /* Compared target is not read-only, so will fail */ + cmp_ret = bpf_strncmp(str, STRNCMP_STR_SZ, writable_target); + return 0; +} + +SEC("tp/syscalls/sys_enter_nanosleep") +int strncmp_bad_not_null_term_target(void *ctx) +{ + /* Compared target is not null-terminated, so will fail */ + cmp_ret = bpf_strncmp(str, STRNCMP_STR_SZ, no_str_target); + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c b/tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c new file mode 100644 index 000000000000..2180c41cd890 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2021 Google */ + +#include "vmlinux.h" + +#include <bpf/bpf_helpers.h> + +extern const int bpf_prog_active __ksym; /* int type global var. */ + +SEC("raw_tp/sys_enter") +int handler(const void *ctx) +{ + int *active; + __u32 cpu; + + cpu = bpf_get_smp_processor_id(); + active = (int *)bpf_per_cpu_ptr(&bpf_prog_active, cpu); + if (active) { + /* Kernel memory obtained from bpf_{per,this}_cpu_ptr + * is read-only, should _not_ pass verification. + */ + /* WRITE_ONCE */ + *(volatile int *)active = -1; + } + + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/test_cpp.cpp b/tools/testing/selftests/bpf/test_cpp.cpp index a8d2e9a87fbf..e00201de2890 100644 --- a/tools/testing/selftests/bpf/test_cpp.cpp +++ b/tools/testing/selftests/bpf/test_cpp.cpp @@ -7,9 +7,15 @@ /* do nothing, just make sure we can link successfully */ +static void dump_printf(void *ctx, const char *fmt, va_list args) +{ +} + int main(int argc, char *argv[]) { + struct btf_dump_opts opts = { }; struct test_core_extern *skel; + struct btf *btf; /* libbpf.h */ libbpf_set_print(NULL); @@ -18,7 +24,8 @@ int main(int argc, char *argv[]) bpf_prog_get_fd_by_id(0); /* btf.h */ - btf__new(NULL, 0); + btf = btf__new(NULL, 0); + btf_dump__new(btf, dump_printf, nullptr, &opts); /* BPF skeleton */ skel = test_core_extern__open_and_load(); diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c index f4cd658bbe00..50f7e74ca0b9 100644 --- a/tools/testing/selftests/bpf/test_maps.c +++ b/tools/testing/selftests/bpf/test_maps.c @@ -23,7 +23,6 @@ #include <bpf/libbpf.h> #include "bpf_util.h" -#include "bpf_rlimit.h" #include "test_maps.h" #include "testing_helpers.h" diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index 296928948bb9..2ecb73a65206 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -4,7 +4,6 @@ #define _GNU_SOURCE #include "test_progs.h" #include "cgroup_helpers.h" -#include "bpf_rlimit.h" #include <argp.h> #include <pthread.h> #include <sched.h> @@ -1342,7 +1341,6 @@ int main(int argc, char **argv) /* Use libbpf 1.0 API mode */ libbpf_set_strict_mode(LIBBPF_STRICT_ALL); - libbpf_set_print(libbpf_print_fn); srand(time(NULL)); diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index 4f1fe8af10a4..76cd903117af 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -41,7 +41,6 @@ # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 # endif #endif -#include "bpf_rlimit.h" #include "bpf_rand.h" #include "bpf_util.h" #include "test_btf.h" @@ -701,22 +700,18 @@ static int create_sk_storage_map(void) static int create_map_timer(void) { - struct bpf_create_map_attr attr = { - .name = "test_map", - .map_type = BPF_MAP_TYPE_ARRAY, - .key_size = 4, - .value_size = 16, - .max_entries = 1, + LIBBPF_OPTS(bpf_map_create_opts, opts, .btf_key_type_id = 1, .btf_value_type_id = 5, - }; + ); int fd, btf_fd; btf_fd = load_btf(); if (btf_fd < 0) return -1; - attr.btf_fd = btf_fd; - fd = bpf_create_map_xattr(&attr); + + opts.btf_fd = btf_fd; + fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_map", 4, 16, 1, &opts); if (fd < 0) printf("Failed to create map with timer\n"); return fd; @@ -1399,6 +1394,9 @@ int main(int argc, char **argv) return EXIT_FAILURE; } + /* Use libbpf 1.0 API mode */ + libbpf_set_strict_mode(LIBBPF_STRICT_ALL); + bpf_semi_rand_init(); return do_test(unpriv, from, to); } diff --git a/tools/testing/selftests/bpf/verifier/btf_ctx_access.c b/tools/testing/selftests/bpf/verifier/btf_ctx_access.c new file mode 100644 index 000000000000..6340db6b46dc --- /dev/null +++ b/tools/testing/selftests/bpf/verifier/btf_ctx_access.c @@ -0,0 +1,12 @@ +{ + "btf_ctx_access accept", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 8), /* load 2nd argument value (int pointer) */ + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_TRACING, + .expected_attach_type = BPF_TRACE_FENTRY, + .kfunc = "bpf_modify_return_test", +}, diff --git a/tools/testing/selftests/bpf/vmtest.sh b/tools/testing/selftests/bpf/vmtest.sh index 5e43c79ddc6e..b3afd43549fa 100755 --- a/tools/testing/selftests/bpf/vmtest.sh +++ b/tools/testing/selftests/bpf/vmtest.sh @@ -32,7 +32,7 @@ ROOTFS_IMAGE="root.img" OUTPUT_DIR="$HOME/.bpf_selftests" KCONFIG_URL="https://raw.githubusercontent.com/libbpf/libbpf/master/travis-ci/vmtest/configs/config-latest.${ARCH}" KCONFIG_API_URL="https://api.github.com/repos/libbpf/libbpf/contents/travis-ci/vmtest/configs/config-latest.${ARCH}" -INDEX_URL="https://raw.githubusercontent.com/libbpf/libbpf/master/travis-ci/vmtest/configs/INDEX" +INDEX_URL="https://raw.githubusercontent.com/libbpf/ci/master/INDEX" NUM_COMPILE_JOBS="$(nproc)" LOG_FILE_BASE="$(date +"bpf_selftests.%Y-%m-%d_%H-%M-%S")" LOG_FILE="${LOG_FILE_BASE}.log" |