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	bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps
This patch adds BPF_MAP_TYPE_SK_STORAGE test to test_maps. The src file is rather long, so it is put into another dir map_tests/ and compile like the current prog_tests/ does. Other existing tests in test_maps can also be re-factored into map_tests/ in the future. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
		
							parent
							
								
									7a9bb9762d
								
							
						
					
					
						commit
						51a0e301a5
					
				
					 4 changed files with 679 additions and 10 deletions
				
			
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			@ -74,6 +74,8 @@ all: $(TEST_CUSTOM_PROGS)
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$(OUTPUT)/urandom_read: $(OUTPUT)/%: %.c
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	$(CC) -o $@ $< -Wl,--build-id
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$(OUTPUT)/test_maps: map_tests/*.c
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BPFOBJ := $(OUTPUT)/libbpf.a
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$(TEST_GEN_PROGS): $(BPFOBJ)
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			@ -232,6 +234,27 @@ $(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)
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		  echo '#endif' \
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		 ) > $(PROG_TESTS_H))
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TEST_MAPS_CFLAGS := -I. -I$(OUTPUT)
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MAP_TESTS_DIR = $(OUTPUT)/map_tests
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$(MAP_TESTS_DIR):
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	mkdir -p $@
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MAP_TESTS_H := $(MAP_TESTS_DIR)/tests.h
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test_maps.c: $(MAP_TESTS_H)
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$(OUTPUT)/test_maps: CFLAGS += $(TEST_MAPS_CFLAGS)
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MAP_TESTS_FILES := $(wildcard map_tests/*.c)
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$(MAP_TESTS_H): $(MAP_TESTS_DIR) $(MAP_TESTS_FILES)
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	$(shell ( cd map_tests/; \
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		  echo '/* Generated header, do not edit */'; \
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		  echo '#ifdef DECLARE'; \
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		  ls *.c 2> /dev/null | \
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			sed -e 's@\([^\.]*\)\.c@extern void test_\1(void);@'; \
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		  echo '#endif'; \
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		  echo '#ifdef CALL'; \
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		  ls *.c 2> /dev/null | \
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			sed -e 's@\([^\.]*\)\.c@test_\1();@'; \
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		  echo '#endif' \
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		 ) > $(MAP_TESTS_H))
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VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h
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test_verifier.c: $(VERIFIER_TESTS_H)
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$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
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			@ -251,4 +274,4 @@ $(OUTPUT)/verifier/tests.h: $(VERIFIER_TESTS_DIR) $(VERIFIER_TEST_FILES)
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		 ) > $(VERIFIER_TESTS_H))
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EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(ALU32_BUILD_DIR) \
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	$(VERIFIER_TESTS_H) $(PROG_TESTS_H)
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	$(VERIFIER_TESTS_H) $(PROG_TESTS_H) $(MAP_TESTS_H)
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						 | 
				
			
			
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										629
									
								
								tools/testing/selftests/bpf/map_tests/sk_storage_map.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										629
									
								
								tools/testing/selftests/bpf/map_tests/sk_storage_map.c
									
									
									
									
									
										Normal file
									
								
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			@ -0,0 +1,629 @@
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// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2019 Facebook  */
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#include <linux/compiler.h>
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#include <linux/err.h>
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#include <sys/resource.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <linux/btf.h>
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#include <unistd.h>
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#include <signal.h>
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#include <errno.h>
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#include <string.h>
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#include <pthread.h>
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#include <bpf/bpf.h>
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#include <bpf/libbpf.h>
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#include <test_btf.h>
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#include <test_maps.h>
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static struct bpf_create_map_attr xattr = {
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	.name = "sk_storage_map",
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	.map_type = BPF_MAP_TYPE_SK_STORAGE,
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	.map_flags = BPF_F_NO_PREALLOC,
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	.max_entries = 0,
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	.key_size = 4,
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	.value_size = 8,
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	.btf_key_type_id = 1,
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	.btf_value_type_id = 3,
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	.btf_fd = -1,
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};
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static unsigned int nr_sk_threads_done;
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static unsigned int nr_sk_threads_err;
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static unsigned int nr_sk_per_thread = 4096;
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static unsigned int nr_sk_threads = 4;
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static int sk_storage_map = -1;
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static unsigned int stop;
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static int runtime_s = 5;
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static bool is_stopped(void)
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{
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	return READ_ONCE(stop);
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}
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static unsigned int threads_err(void)
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{
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	return READ_ONCE(nr_sk_threads_err);
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}
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static void notify_thread_err(void)
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{
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	__sync_add_and_fetch(&nr_sk_threads_err, 1);
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}
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static bool wait_for_threads_err(void)
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{
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	while (!is_stopped() && !threads_err())
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		usleep(500);
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	return !is_stopped();
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}
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static unsigned int threads_done(void)
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{
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	return READ_ONCE(nr_sk_threads_done);
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}
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static void notify_thread_done(void)
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{
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	__sync_add_and_fetch(&nr_sk_threads_done, 1);
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}
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static void notify_thread_redo(void)
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{
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	__sync_sub_and_fetch(&nr_sk_threads_done, 1);
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}
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static bool wait_for_threads_done(void)
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{
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	while (threads_done() != nr_sk_threads && !is_stopped() &&
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	       !threads_err())
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		usleep(50);
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	return !is_stopped() && !threads_err();
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}
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static bool wait_for_threads_redo(void)
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{
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	while (threads_done() && !is_stopped() && !threads_err())
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		usleep(50);
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	return !is_stopped() && !threads_err();
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}
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static bool wait_for_map(void)
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{
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	while (READ_ONCE(sk_storage_map) == -1 && !is_stopped())
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		usleep(50);
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	return !is_stopped();
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}
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static bool wait_for_map_close(void)
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{
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	while (READ_ONCE(sk_storage_map) != -1 && !is_stopped())
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		;
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	return !is_stopped();
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}
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static int load_btf(void)
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{
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	const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l";
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	__u32 btf_raw_types[] = {
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		/* int */
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		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [1] */
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		/* struct bpf_spin_lock */                      /* [2] */
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		BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),
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		BTF_MEMBER_ENC(15, 1, 0), /* int val; */
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		/* struct val */                                /* [3] */
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		BTF_TYPE_ENC(15, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
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		BTF_MEMBER_ENC(19, 1, 0), /* int cnt; */
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		BTF_MEMBER_ENC(23, 2, 32),/* struct bpf_spin_lock l; */
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	};
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	struct btf_header btf_hdr = {
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		.magic = BTF_MAGIC,
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		.version = BTF_VERSION,
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		.hdr_len = sizeof(struct btf_header),
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		.type_len = sizeof(btf_raw_types),
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		.str_off = sizeof(btf_raw_types),
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		.str_len = sizeof(btf_str_sec),
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	};
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	__u8 raw_btf[sizeof(struct btf_header) + sizeof(btf_raw_types) +
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		     sizeof(btf_str_sec)];
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	memcpy(raw_btf, &btf_hdr, sizeof(btf_hdr));
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	memcpy(raw_btf + sizeof(btf_hdr), btf_raw_types, sizeof(btf_raw_types));
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	memcpy(raw_btf + sizeof(btf_hdr) + sizeof(btf_raw_types),
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	       btf_str_sec, sizeof(btf_str_sec));
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	return bpf_load_btf(raw_btf, sizeof(raw_btf), 0, 0, 0);
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}
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static int create_sk_storage_map(void)
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{
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	int btf_fd, map_fd;
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	btf_fd = load_btf();
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	CHECK(btf_fd == -1, "bpf_load_btf", "btf_fd:%d errno:%d\n",
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	      btf_fd, errno);
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	xattr.btf_fd = btf_fd;
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	map_fd = bpf_create_map_xattr(&xattr);
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	xattr.btf_fd = -1;
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	close(btf_fd);
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	CHECK(map_fd == -1,
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	      "bpf_create_map_xattr()", "errno:%d\n", errno);
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	return map_fd;
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}
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static void *insert_close_thread(void *arg)
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{
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	struct {
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		int cnt;
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		int lock;
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	} value = { .cnt = 0xeB9F, .lock = 0, };
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	int i, map_fd, err, *sk_fds;
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	sk_fds = malloc(sizeof(*sk_fds) * nr_sk_per_thread);
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	if (!sk_fds) {
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		notify_thread_err();
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		return ERR_PTR(-ENOMEM);
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	}
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	for (i = 0; i < nr_sk_per_thread; i++)
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		sk_fds[i] = -1;
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	while (!is_stopped()) {
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		if (!wait_for_map())
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			goto close_all;
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		map_fd = READ_ONCE(sk_storage_map);
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		for (i = 0; i < nr_sk_per_thread && !is_stopped(); i++) {
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			sk_fds[i] = socket(AF_INET6, SOCK_STREAM, 0);
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			if (sk_fds[i] == -1) {
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				err = -errno;
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				fprintf(stderr, "socket(): errno:%d\n", errno);
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				goto errout;
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			}
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			err = bpf_map_update_elem(map_fd, &sk_fds[i], &value,
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						  BPF_NOEXIST);
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			if (err) {
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				err = -errno;
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				fprintf(stderr,
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					"bpf_map_update_elem(): errno:%d\n",
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					errno);
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				goto errout;
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			}
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		}
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		notify_thread_done();
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		wait_for_map_close();
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close_all:
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		for (i = 0; i < nr_sk_per_thread; i++) {
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			close(sk_fds[i]);
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			sk_fds[i] = -1;
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		}
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		notify_thread_redo();
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	}
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	free(sk_fds);
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	return NULL;
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errout:
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	for (i = 0; i < nr_sk_per_thread && sk_fds[i] != -1; i++)
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		close(sk_fds[i]);
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	free(sk_fds);
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	notify_thread_err();
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	return ERR_PTR(err);
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}
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static int do_sk_storage_map_stress_free(void)
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{
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	int i, map_fd = -1, err = 0, nr_threads_created = 0;
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	pthread_t *sk_thread_ids;
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	void *thread_ret;
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	sk_thread_ids = malloc(sizeof(pthread_t) * nr_sk_threads);
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	if (!sk_thread_ids) {
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		fprintf(stderr, "malloc(sk_threads): NULL\n");
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		return -ENOMEM;
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	}
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	for (i = 0; i < nr_sk_threads; i++) {
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		err = pthread_create(&sk_thread_ids[i], NULL,
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				     insert_close_thread, NULL);
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		if (err) {
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			err = -errno;
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			goto done;
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		}
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		nr_threads_created++;
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	}
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	while (!is_stopped()) {
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		map_fd = create_sk_storage_map();
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		WRITE_ONCE(sk_storage_map, map_fd);
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		if (!wait_for_threads_done())
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			break;
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		WRITE_ONCE(sk_storage_map, -1);
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		close(map_fd);
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		map_fd = -1;
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		if (!wait_for_threads_redo())
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			break;
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	}
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done:
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	WRITE_ONCE(stop, 1);
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	for (i = 0; i < nr_threads_created; i++) {
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		pthread_join(sk_thread_ids[i], &thread_ret);
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		if (IS_ERR(thread_ret) && !err) {
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			err = PTR_ERR(thread_ret);
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			fprintf(stderr, "threads#%u: err:%d\n", i, err);
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		}
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	}
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	free(sk_thread_ids);
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	if (map_fd != -1)
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		close(map_fd);
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	return err;
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}
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static void *update_thread(void *arg)
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{
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	struct {
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		int cnt;
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		int lock;
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	} value = { .cnt = 0xeB9F, .lock = 0, };
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	int map_fd = READ_ONCE(sk_storage_map);
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	int sk_fd = *(int *)arg;
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	int err = 0; /* Suppress compiler false alarm */
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	while (!is_stopped()) {
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		err = bpf_map_update_elem(map_fd, &sk_fd, &value, 0);
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		if (err && errno != EAGAIN) {
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			err = -errno;
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			fprintf(stderr, "bpf_map_update_elem: %d %d\n",
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				err, errno);
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			break;
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		}
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	}
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	if (!is_stopped()) {
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		notify_thread_err();
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		return ERR_PTR(err);
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	}
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	return NULL;
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}
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 | 
			
		||||
static void *delete_thread(void *arg)
 | 
			
		||||
{
 | 
			
		||||
	int map_fd = READ_ONCE(sk_storage_map);
 | 
			
		||||
	int sk_fd = *(int *)arg;
 | 
			
		||||
	int err = 0; /* Suppress compiler false alarm */
 | 
			
		||||
 | 
			
		||||
	while (!is_stopped()) {
 | 
			
		||||
		err = bpf_map_delete_elem(map_fd, &sk_fd);
 | 
			
		||||
		if (err && errno != ENOENT) {
 | 
			
		||||
			err = -errno;
 | 
			
		||||
			fprintf(stderr, "bpf_map_delete_elem: %d %d\n",
 | 
			
		||||
				err, errno);
 | 
			
		||||
			break;
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if (!is_stopped()) {
 | 
			
		||||
		notify_thread_err();
 | 
			
		||||
		return ERR_PTR(err);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	return NULL;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int do_sk_storage_map_stress_change(void)
 | 
			
		||||
{
 | 
			
		||||
	int i, sk_fd, map_fd = -1, err = 0, nr_threads_created = 0;
 | 
			
		||||
	pthread_t *sk_thread_ids;
 | 
			
		||||
	void *thread_ret;
 | 
			
		||||
 | 
			
		||||
	sk_thread_ids = malloc(sizeof(pthread_t) * nr_sk_threads);
 | 
			
		||||
	if (!sk_thread_ids) {
 | 
			
		||||
		fprintf(stderr, "malloc(sk_threads): NULL\n");
 | 
			
		||||
		return -ENOMEM;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	sk_fd = socket(AF_INET6, SOCK_STREAM, 0);
 | 
			
		||||
	if (sk_fd == -1) {
 | 
			
		||||
		err = -errno;
 | 
			
		||||
		goto done;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	map_fd = create_sk_storage_map();
 | 
			
		||||
	WRITE_ONCE(sk_storage_map, map_fd);
 | 
			
		||||
 | 
			
		||||
	for (i = 0; i < nr_sk_threads; i++) {
 | 
			
		||||
		if (i & 0x1)
 | 
			
		||||
			err = pthread_create(&sk_thread_ids[i], NULL,
 | 
			
		||||
					     update_thread, &sk_fd);
 | 
			
		||||
		else
 | 
			
		||||
			err = pthread_create(&sk_thread_ids[i], NULL,
 | 
			
		||||
					     delete_thread, &sk_fd);
 | 
			
		||||
		if (err) {
 | 
			
		||||
			err = -errno;
 | 
			
		||||
			goto done;
 | 
			
		||||
		}
 | 
			
		||||
		nr_threads_created++;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	wait_for_threads_err();
 | 
			
		||||
 | 
			
		||||
done:
 | 
			
		||||
	WRITE_ONCE(stop, 1);
 | 
			
		||||
	for (i = 0; i < nr_threads_created; i++) {
 | 
			
		||||
		pthread_join(sk_thread_ids[i], &thread_ret);
 | 
			
		||||
		if (IS_ERR(thread_ret) && !err) {
 | 
			
		||||
			err = PTR_ERR(thread_ret);
 | 
			
		||||
			fprintf(stderr, "threads#%u: err:%d\n", i, err);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	free(sk_thread_ids);
 | 
			
		||||
 | 
			
		||||
	if (sk_fd != -1)
 | 
			
		||||
		close(sk_fd);
 | 
			
		||||
	close(map_fd);
 | 
			
		||||
 | 
			
		||||
	return err;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void stop_handler(int signum)
 | 
			
		||||
{
 | 
			
		||||
	if (signum != SIGALRM)
 | 
			
		||||
		printf("stopping...\n");
 | 
			
		||||
	WRITE_ONCE(stop, 1);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#define BPF_SK_STORAGE_MAP_TEST_NR_THREADS "BPF_SK_STORAGE_MAP_TEST_NR_THREADS"
 | 
			
		||||
#define BPF_SK_STORAGE_MAP_TEST_SK_PER_THREAD "BPF_SK_STORAGE_MAP_TEST_SK_PER_THREAD"
 | 
			
		||||
#define BPF_SK_STORAGE_MAP_TEST_RUNTIME_S "BPF_SK_STORAGE_MAP_TEST_RUNTIME_S"
 | 
			
		||||
#define BPF_SK_STORAGE_MAP_TEST_NAME "BPF_SK_STORAGE_MAP_TEST_NAME"
 | 
			
		||||
 | 
			
		||||
static void test_sk_storage_map_stress_free(void)
 | 
			
		||||
{
 | 
			
		||||
	struct rlimit rlim_old, rlim_new = {};
 | 
			
		||||
	int err;
 | 
			
		||||
 | 
			
		||||
	getrlimit(RLIMIT_NOFILE, &rlim_old);
 | 
			
		||||
 | 
			
		||||
	signal(SIGTERM, stop_handler);
 | 
			
		||||
	signal(SIGINT, stop_handler);
 | 
			
		||||
	if (runtime_s > 0) {
 | 
			
		||||
		signal(SIGALRM, stop_handler);
 | 
			
		||||
		alarm(runtime_s);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if (rlim_old.rlim_cur < nr_sk_threads * nr_sk_per_thread) {
 | 
			
		||||
		rlim_new.rlim_cur = nr_sk_threads * nr_sk_per_thread + 128;
 | 
			
		||||
		rlim_new.rlim_max = rlim_new.rlim_cur + 128;
 | 
			
		||||
		err = setrlimit(RLIMIT_NOFILE, &rlim_new);
 | 
			
		||||
		CHECK(err, "setrlimit(RLIMIT_NOFILE)", "rlim_new:%lu errno:%d",
 | 
			
		||||
		      rlim_new.rlim_cur, errno);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	err = do_sk_storage_map_stress_free();
 | 
			
		||||
 | 
			
		||||
	signal(SIGTERM, SIG_DFL);
 | 
			
		||||
	signal(SIGINT, SIG_DFL);
 | 
			
		||||
	if (runtime_s > 0) {
 | 
			
		||||
		signal(SIGALRM, SIG_DFL);
 | 
			
		||||
		alarm(0);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if (rlim_new.rlim_cur)
 | 
			
		||||
		setrlimit(RLIMIT_NOFILE, &rlim_old);
 | 
			
		||||
 | 
			
		||||
	CHECK(err, "test_sk_storage_map_stress_free", "err:%d\n", err);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void test_sk_storage_map_stress_change(void)
 | 
			
		||||
{
 | 
			
		||||
	int err;
 | 
			
		||||
 | 
			
		||||
	signal(SIGTERM, stop_handler);
 | 
			
		||||
	signal(SIGINT, stop_handler);
 | 
			
		||||
	if (runtime_s > 0) {
 | 
			
		||||
		signal(SIGALRM, stop_handler);
 | 
			
		||||
		alarm(runtime_s);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	err = do_sk_storage_map_stress_change();
 | 
			
		||||
 | 
			
		||||
	signal(SIGTERM, SIG_DFL);
 | 
			
		||||
	signal(SIGINT, SIG_DFL);
 | 
			
		||||
	if (runtime_s > 0) {
 | 
			
		||||
		signal(SIGALRM, SIG_DFL);
 | 
			
		||||
		alarm(0);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	CHECK(err, "test_sk_storage_map_stress_change", "err:%d\n", err);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void test_sk_storage_map_basic(void)
 | 
			
		||||
{
 | 
			
		||||
	struct {
 | 
			
		||||
		int cnt;
 | 
			
		||||
		int lock;
 | 
			
		||||
	} value = { .cnt = 0xeB9f, .lock = 0, }, lookup_value;
 | 
			
		||||
	struct bpf_create_map_attr bad_xattr;
 | 
			
		||||
	int btf_fd, map_fd, sk_fd, err;
 | 
			
		||||
 | 
			
		||||
	btf_fd = load_btf();
 | 
			
		||||
	CHECK(btf_fd == -1, "bpf_load_btf", "btf_fd:%d errno:%d\n",
 | 
			
		||||
	      btf_fd, errno);
 | 
			
		||||
	xattr.btf_fd = btf_fd;
 | 
			
		||||
 | 
			
		||||
	sk_fd = socket(AF_INET6, SOCK_STREAM, 0);
 | 
			
		||||
	CHECK(sk_fd == -1, "socket()", "sk_fd:%d errno:%d\n",
 | 
			
		||||
	      sk_fd, errno);
 | 
			
		||||
 | 
			
		||||
	map_fd = bpf_create_map_xattr(&xattr);
 | 
			
		||||
	CHECK(map_fd == -1, "bpf_create_map_xattr(good_xattr)",
 | 
			
		||||
	      "map_fd:%d errno:%d\n", map_fd, errno);
 | 
			
		||||
 | 
			
		||||
	/* Add new elem */
 | 
			
		||||
	memcpy(&lookup_value, &value, sizeof(value));
 | 
			
		||||
	err = bpf_map_update_elem(map_fd, &sk_fd, &value,
 | 
			
		||||
				  BPF_NOEXIST | BPF_F_LOCK);
 | 
			
		||||
	CHECK(err, "bpf_map_update_elem(BPF_NOEXIST|BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
 | 
			
		||||
					BPF_F_LOCK);
 | 
			
		||||
	CHECK(err || lookup_value.cnt != value.cnt,
 | 
			
		||||
	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d cnt:%x(%x)\n",
 | 
			
		||||
	      err, errno, lookup_value.cnt, value.cnt);
 | 
			
		||||
 | 
			
		||||
	/* Bump the cnt and update with BPF_EXIST | BPF_F_LOCK */
 | 
			
		||||
	value.cnt += 1;
 | 
			
		||||
	err = bpf_map_update_elem(map_fd, &sk_fd, &value,
 | 
			
		||||
				  BPF_EXIST | BPF_F_LOCK);
 | 
			
		||||
	CHECK(err, "bpf_map_update_elem(BPF_EXIST|BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
 | 
			
		||||
					BPF_F_LOCK);
 | 
			
		||||
	CHECK(err || lookup_value.cnt != value.cnt,
 | 
			
		||||
	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d cnt:%x(%x)\n",
 | 
			
		||||
	      err, errno, lookup_value.cnt, value.cnt);
 | 
			
		||||
 | 
			
		||||
	/* Bump the cnt and update with BPF_EXIST */
 | 
			
		||||
	value.cnt += 1;
 | 
			
		||||
	err = bpf_map_update_elem(map_fd, &sk_fd, &value, BPF_EXIST);
 | 
			
		||||
	CHECK(err, "bpf_map_update_elem(BPF_EXIST)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
 | 
			
		||||
					BPF_F_LOCK);
 | 
			
		||||
	CHECK(err || lookup_value.cnt != value.cnt,
 | 
			
		||||
	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d cnt:%x(%x)\n",
 | 
			
		||||
	      err, errno, lookup_value.cnt, value.cnt);
 | 
			
		||||
 | 
			
		||||
	/* Update with BPF_NOEXIST */
 | 
			
		||||
	value.cnt += 1;
 | 
			
		||||
	err = bpf_map_update_elem(map_fd, &sk_fd, &value,
 | 
			
		||||
				  BPF_NOEXIST | BPF_F_LOCK);
 | 
			
		||||
	CHECK(!err || errno != EEXIST,
 | 
			
		||||
	      "bpf_map_update_elem(BPF_NOEXIST|BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
	err = bpf_map_update_elem(map_fd, &sk_fd, &value, BPF_NOEXIST);
 | 
			
		||||
	CHECK(!err || errno != EEXIST, "bpf_map_update_elem(BPF_NOEXIST)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
	value.cnt -= 1;
 | 
			
		||||
	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
 | 
			
		||||
					BPF_F_LOCK);
 | 
			
		||||
	CHECK(err || lookup_value.cnt != value.cnt,
 | 
			
		||||
	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d cnt:%x(%x)\n",
 | 
			
		||||
	      err, errno, lookup_value.cnt, value.cnt);
 | 
			
		||||
 | 
			
		||||
	/* Bump the cnt again and update with map_flags == 0 */
 | 
			
		||||
	value.cnt += 1;
 | 
			
		||||
	err = bpf_map_update_elem(map_fd, &sk_fd, &value, 0);
 | 
			
		||||
	CHECK(err, "bpf_map_update_elem()", "err:%d errno:%d\n",
 | 
			
		||||
	      err, errno);
 | 
			
		||||
	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
 | 
			
		||||
					BPF_F_LOCK);
 | 
			
		||||
	CHECK(err || lookup_value.cnt != value.cnt,
 | 
			
		||||
	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d cnt:%x(%x)\n",
 | 
			
		||||
	      err, errno, lookup_value.cnt, value.cnt);
 | 
			
		||||
 | 
			
		||||
	/* Test delete elem */
 | 
			
		||||
	err = bpf_map_delete_elem(map_fd, &sk_fd);
 | 
			
		||||
	CHECK(err, "bpf_map_delete_elem()", "err:%d errno:%d\n",
 | 
			
		||||
	      err, errno);
 | 
			
		||||
	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
 | 
			
		||||
					BPF_F_LOCK);
 | 
			
		||||
	CHECK(!err || errno != ENOENT,
 | 
			
		||||
	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
	err = bpf_map_delete_elem(map_fd, &sk_fd);
 | 
			
		||||
	CHECK(!err || errno != ENOENT, "bpf_map_delete_elem()",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
 | 
			
		||||
	memcpy(&bad_xattr, &xattr, sizeof(xattr));
 | 
			
		||||
	bad_xattr.btf_key_type_id = 0;
 | 
			
		||||
	err = bpf_create_map_xattr(&bad_xattr);
 | 
			
		||||
	CHECK(!err || errno != EINVAL, "bap_create_map_xattr(bad_xattr)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
 | 
			
		||||
	memcpy(&bad_xattr, &xattr, sizeof(xattr));
 | 
			
		||||
	bad_xattr.btf_key_type_id = 3;
 | 
			
		||||
	err = bpf_create_map_xattr(&bad_xattr);
 | 
			
		||||
	CHECK(!err || errno != EINVAL, "bap_create_map_xattr(bad_xattr)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
 | 
			
		||||
	memcpy(&bad_xattr, &xattr, sizeof(xattr));
 | 
			
		||||
	bad_xattr.max_entries = 1;
 | 
			
		||||
	err = bpf_create_map_xattr(&bad_xattr);
 | 
			
		||||
	CHECK(!err || errno != EINVAL, "bap_create_map_xattr(bad_xattr)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
 | 
			
		||||
	memcpy(&bad_xattr, &xattr, sizeof(xattr));
 | 
			
		||||
	bad_xattr.map_flags = 0;
 | 
			
		||||
	err = bpf_create_map_xattr(&bad_xattr);
 | 
			
		||||
	CHECK(!err || errno != EINVAL, "bap_create_map_xattr(bad_xattr)",
 | 
			
		||||
	      "err:%d errno:%d\n", err, errno);
 | 
			
		||||
 | 
			
		||||
	xattr.btf_fd = -1;
 | 
			
		||||
	close(btf_fd);
 | 
			
		||||
	close(map_fd);
 | 
			
		||||
	close(sk_fd);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void test_sk_storage_map(void)
 | 
			
		||||
{
 | 
			
		||||
	const char *test_name, *env_opt;
 | 
			
		||||
	bool test_ran = false;
 | 
			
		||||
 | 
			
		||||
	test_name = getenv(BPF_SK_STORAGE_MAP_TEST_NAME);
 | 
			
		||||
 | 
			
		||||
	env_opt = getenv(BPF_SK_STORAGE_MAP_TEST_NR_THREADS);
 | 
			
		||||
	if (env_opt)
 | 
			
		||||
		nr_sk_threads = atoi(env_opt);
 | 
			
		||||
 | 
			
		||||
	env_opt = getenv(BPF_SK_STORAGE_MAP_TEST_SK_PER_THREAD);
 | 
			
		||||
	if (env_opt)
 | 
			
		||||
		nr_sk_per_thread = atoi(env_opt);
 | 
			
		||||
 | 
			
		||||
	env_opt = getenv(BPF_SK_STORAGE_MAP_TEST_RUNTIME_S);
 | 
			
		||||
	if (env_opt)
 | 
			
		||||
		runtime_s = atoi(env_opt);
 | 
			
		||||
 | 
			
		||||
	if (!test_name || !strcmp(test_name, "basic")) {
 | 
			
		||||
		test_sk_storage_map_basic();
 | 
			
		||||
		test_ran = true;
 | 
			
		||||
	}
 | 
			
		||||
	if (!test_name || !strcmp(test_name, "stress_free")) {
 | 
			
		||||
		test_sk_storage_map_stress_free();
 | 
			
		||||
		test_ran = true;
 | 
			
		||||
	}
 | 
			
		||||
	if (!test_name || !strcmp(test_name, "stress_change")) {
 | 
			
		||||
		test_sk_storage_map_stress_change();
 | 
			
		||||
		test_ran = true;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if (test_ran)
 | 
			
		||||
		printf("%s:PASS\n", __func__);
 | 
			
		||||
	else
 | 
			
		||||
		CHECK(1, "Invalid test_name", "%s\n", test_name);
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -27,6 +27,7 @@
 | 
			
		|||
 | 
			
		||||
#include "bpf_util.h"
 | 
			
		||||
#include "bpf_rlimit.h"
 | 
			
		||||
#include "test_maps.h"
 | 
			
		||||
 | 
			
		||||
#ifndef ENOTSUPP
 | 
			
		||||
#define ENOTSUPP 524
 | 
			
		||||
| 
						 | 
				
			
			@ -36,15 +37,6 @@ static int skips;
 | 
			
		|||
 | 
			
		||||
static int map_flags;
 | 
			
		||||
 | 
			
		||||
#define CHECK(condition, tag, format...) ({				\
 | 
			
		||||
	int __ret = !!(condition);					\
 | 
			
		||||
	if (__ret) {							\
 | 
			
		||||
		printf("%s(%d):FAIL:%s ", __func__, __LINE__, tag);	\
 | 
			
		||||
		printf(format);						\
 | 
			
		||||
		exit(-1);						\
 | 
			
		||||
	}								\
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
static void test_hashmap(unsigned int task, void *data)
 | 
			
		||||
{
 | 
			
		||||
	long long key, next_key, first_key, value;
 | 
			
		||||
| 
						 | 
				
			
			@ -1703,6 +1695,10 @@ static void run_all_tests(void)
 | 
			
		|||
	test_map_in_map();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#define DECLARE
 | 
			
		||||
#include <map_tests/tests.h>
 | 
			
		||||
#undef DECLARE
 | 
			
		||||
 | 
			
		||||
int main(void)
 | 
			
		||||
{
 | 
			
		||||
	srand(time(NULL));
 | 
			
		||||
| 
						 | 
				
			
			@ -1713,6 +1709,10 @@ int main(void)
 | 
			
		|||
	map_flags = BPF_F_NO_PREALLOC;
 | 
			
		||||
	run_all_tests();
 | 
			
		||||
 | 
			
		||||
#define CALL
 | 
			
		||||
#include <map_tests/tests.h>
 | 
			
		||||
#undef CALL
 | 
			
		||||
 | 
			
		||||
	printf("test_maps: OK, %d SKIPPED\n", skips);
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
							
								
								
									
										17
									
								
								tools/testing/selftests/bpf/test_maps.h
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										17
									
								
								tools/testing/selftests/bpf/test_maps.h
									
									
									
									
									
										Normal file
									
								
							| 
						 | 
				
			
			@ -0,0 +1,17 @@
 | 
			
		|||
/* SPDX-License-Identifier: GPL-2.0 */
 | 
			
		||||
#ifndef _TEST_MAPS_H
 | 
			
		||||
#define _TEST_MAPS_H
 | 
			
		||||
 | 
			
		||||
#include <stdio.h>
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
 | 
			
		||||
#define CHECK(condition, tag, format...) ({				\
 | 
			
		||||
	int __ret = !!(condition);					\
 | 
			
		||||
	if (__ret) {							\
 | 
			
		||||
		printf("%s(%d):FAIL:%s ", __func__, __LINE__, tag);	\
 | 
			
		||||
		printf(format);						\
 | 
			
		||||
		exit(-1);						\
 | 
			
		||||
	}								\
 | 
			
		||||
})
 | 
			
		||||
 | 
			
		||||
#endif
 | 
			
		||||
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		Reference in a new issue