diff options
Diffstat (limited to 'tools/testing/selftests/bpf/test_cgroup_storage.c')
| -rw-r--r-- | tools/testing/selftests/bpf/test_cgroup_storage.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/tools/testing/selftests/bpf/test_cgroup_storage.c b/tools/testing/selftests/bpf/test_cgroup_storage.c deleted file mode 100644 index 0861ea60dcdd..000000000000 --- a/tools/testing/selftests/bpf/test_cgroup_storage.c +++ /dev/null @@ -1,174 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <assert.h> -#include <bpf/bpf.h> -#include <linux/filter.h> -#include <stdio.h> -#include <stdlib.h> -#include <sys/sysinfo.h> - -#include "bpf_util.h" -#include "cgroup_helpers.h" -#include "testing_helpers.h" - -char bpf_log_buf[BPF_LOG_BUF_SIZE]; - -#define TEST_CGROUP "/test-bpf-cgroup-storage-buf/" - -int main(int argc, char **argv) -{ - struct bpf_insn prog[] = { - BPF_LD_MAP_FD(BPF_REG_1, 0), /* percpu map fd */ - BPF_MOV64_IMM(BPF_REG_2, 0), /* flags, not used */ - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, - BPF_FUNC_get_local_storage), - BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 0x1), - BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0), - - BPF_LD_MAP_FD(BPF_REG_1, 0), /* map fd */ - BPF_MOV64_IMM(BPF_REG_2, 0), /* flags, not used */ - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, - BPF_FUNC_get_local_storage), - BPF_MOV64_IMM(BPF_REG_1, 1), - BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_0, BPF_REG_1, 0), - BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), - BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0x1), - BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), - BPF_EXIT_INSN(), - }; - size_t insns_cnt = ARRAY_SIZE(prog); - int error = EXIT_FAILURE; - int map_fd, percpu_map_fd, prog_fd, cgroup_fd; - struct bpf_cgroup_storage_key key; - unsigned long long value; - unsigned long long *percpu_value; - int cpu, nproc; - - nproc = bpf_num_possible_cpus(); - percpu_value = malloc(sizeof(*percpu_value) * nproc); - if (!percpu_value) { - printf("Not enough memory for per-cpu area (%d cpus)\n", nproc); - goto err; - } - - /* Use libbpf 1.0 API mode */ - libbpf_set_strict_mode(LIBBPF_STRICT_ALL); - - map_fd = bpf_map_create(BPF_MAP_TYPE_CGROUP_STORAGE, NULL, sizeof(key), - sizeof(value), 0, NULL); - if (map_fd < 0) { - printf("Failed to create map: %s\n", strerror(errno)); - goto out; - } - - percpu_map_fd = bpf_map_create(BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE, NULL, - sizeof(key), sizeof(value), 0, NULL); - if (percpu_map_fd < 0) { - printf("Failed to create map: %s\n", strerror(errno)); - goto out; - } - - prog[0].imm = percpu_map_fd; - prog[7].imm = map_fd; - prog_fd = bpf_test_load_program(BPF_PROG_TYPE_CGROUP_SKB, - prog, insns_cnt, "GPL", 0, - bpf_log_buf, BPF_LOG_BUF_SIZE); - if (prog_fd < 0) { - printf("Failed to load bpf program: %s\n", bpf_log_buf); - goto out; - } - - cgroup_fd = cgroup_setup_and_join(TEST_CGROUP); - - /* Attach the bpf program */ - if (bpf_prog_attach(prog_fd, cgroup_fd, BPF_CGROUP_INET_EGRESS, 0)) { - printf("Failed to attach bpf program\n"); - goto err; - } - - if (bpf_map_get_next_key(map_fd, NULL, &key)) { - printf("Failed to get the first key in cgroup storage\n"); - goto err; - } - - if (bpf_map_lookup_elem(map_fd, &key, &value)) { - printf("Failed to lookup cgroup storage 0\n"); - goto err; - } - - for (cpu = 0; cpu < nproc; cpu++) - percpu_value[cpu] = 1000; - - if (bpf_map_update_elem(percpu_map_fd, &key, percpu_value, 0)) { - printf("Failed to update the data in the cgroup storage\n"); - goto err; - } - - /* Every second packet should be dropped */ - assert(system("ping localhost -c 1 -W 1 -q > /dev/null") == 0); - assert(system("ping localhost -c 1 -W 1 -q > /dev/null")); - assert(system("ping localhost -c 1 -W 1 -q > /dev/null") == 0); - - /* Check the counter in the cgroup local storage */ - if (bpf_map_lookup_elem(map_fd, &key, &value)) { - printf("Failed to lookup cgroup storage\n"); - goto err; - } - - if (value != 3) { - printf("Unexpected data in the cgroup storage: %llu\n", value); - goto err; - } - - /* Bump the counter in the cgroup local storage */ - value++; - if (bpf_map_update_elem(map_fd, &key, &value, 0)) { - printf("Failed to update the data in the cgroup storage\n"); - goto err; - } - - /* Every second packet should be dropped */ - assert(system("ping localhost -c 1 -W 1 -q > /dev/null") == 0); - assert(system("ping localhost -c 1 -W 1 -q > /dev/null")); - assert(system("ping localhost -c 1 -W 1 -q > /dev/null") == 0); - - /* Check the final value of the counter in the cgroup local storage */ - if (bpf_map_lookup_elem(map_fd, &key, &value)) { - printf("Failed to lookup the cgroup storage\n"); - goto err; - } - - if (value != 7) { - printf("Unexpected data in the cgroup storage: %llu\n", value); - goto err; - } - - /* Check the final value of the counter in the percpu local storage */ - - for (cpu = 0; cpu < nproc; cpu++) - percpu_value[cpu] = 0; - - if (bpf_map_lookup_elem(percpu_map_fd, &key, percpu_value)) { - printf("Failed to lookup the per-cpu cgroup storage\n"); - goto err; - } - - value = 0; - for (cpu = 0; cpu < nproc; cpu++) - value += percpu_value[cpu]; - - if (value != nproc * 1000 + 6) { - printf("Unexpected data in the per-cpu cgroup storage\n"); - goto err; - } - - error = 0; - printf("test_cgroup_storage:PASS\n"); - -err: - cleanup_cgroup_environment(); - free(percpu_value); - -out: - return error; -} |