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Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/test_csum_diff.c')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/test_csum_diff.c408
1 files changed, 408 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/test_csum_diff.c b/tools/testing/selftests/bpf/prog_tests/test_csum_diff.c
new file mode 100644
index 000000000000..107b20d43e83
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_csum_diff.c
@@ -0,0 +1,408 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates */
+#include <test_progs.h>
+#include "csum_diff_test.skel.h"
+
+#define BUFF_SZ 512
+
+struct testcase {
+ unsigned long long to_buff[BUFF_SZ / 8];
+ unsigned int to_buff_len;
+ unsigned long long from_buff[BUFF_SZ / 8];
+ unsigned int from_buff_len;
+ unsigned short seed;
+ unsigned short result;
+};
+
+#define NUM_PUSH_TESTS 4
+
+struct testcase push_tests[NUM_PUSH_TESTS] = {
+ {
+ .to_buff = {
+ 0xdeadbeefdeadbeef,
+ },
+ .to_buff_len = 8,
+ .from_buff = {},
+ .from_buff_len = 0,
+ .seed = 0,
+ .result = 0x3b3b
+ },
+ {
+ .to_buff = {
+ 0xdeadbeefdeadbeef,
+ 0xbeefdeadbeefdead,
+ },
+ .to_buff_len = 16,
+ .from_buff = {},
+ .from_buff_len = 0,
+ .seed = 0x1234,
+ .result = 0x88aa
+ },
+ {
+ .to_buff = {
+ 0xdeadbeefdeadbeef,
+ 0xbeefdeadbeefdead,
+ },
+ .to_buff_len = 15,
+ .from_buff = {},
+ .from_buff_len = 0,
+ .seed = 0x1234,
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ .result = 0xcaa9
+#else
+ .result = 0x87fd
+#endif
+ },
+ {
+ .to_buff = {
+ 0x327b23c66b8b4567,
+ 0x66334873643c9869,
+ 0x19495cff74b0dc51,
+ 0x625558ec2ae8944a,
+ 0x46e87ccd238e1f29,
+ 0x507ed7ab3d1b58ba,
+ 0x41b71efb2eb141f2,
+ 0x7545e14679e2a9e3,
+ 0x5bd062c2515f007c,
+ 0x4db127f812200854,
+ 0x1f16e9e80216231b,
+ 0x66ef438d1190cde7,
+ 0x3352255a140e0f76,
+ 0x0ded7263109cf92e,
+ 0x1befd79f7fdcc233,
+ 0x6b68079a41a7c4c9,
+ 0x25e45d324e6afb66,
+ 0x431bd7b7519b500d,
+ 0x7c83e4583f2dba31,
+ 0x62bbd95a257130a3,
+ 0x628c895d436c6125,
+ 0x721da317333ab105,
+ 0x2d1d5ae92443a858,
+ 0x75a2a8d46763845e,
+ 0x79838cb208edbdab,
+ 0x0b03e0c64353d0cd,
+ 0x54e49eb4189a769b,
+ 0x2ca8861171f32454,
+ 0x02901d820836c40e,
+ 0x081386413a95f874,
+ 0x7c3dbd3d1e7ff521,
+ 0x6ceaf087737b8ddc,
+ 0x4516dde922221a70,
+ 0x614fd4a13006c83e,
+ 0x5577f8e1419ac241,
+ 0x05072367440badfc,
+ 0x77465f013804823e,
+ 0x5c482a977724c67e,
+ 0x5e884adc2463b9ea,
+ 0x2d51779651ead36b,
+ 0x153ea438580bd78f,
+ 0x70a64e2a3855585c,
+ 0x2a487cb06a2342ec,
+ 0x725a06fb1d4ed43b,
+ 0x57e4ccaf2cd89a32,
+ 0x4b588f547a6d8d3c,
+ 0x6de91b18542289ec,
+ 0x7644a45c38437fdb,
+ 0x684a481a32fff902,
+ 0x749abb43579478fe,
+ 0x1ba026fa3dc240fb,
+ 0x75c6c33a79a1deaa,
+ 0x70c6a52912e685fb,
+ 0x374a3fe6520eedd1,
+ 0x23f9c13c4f4ef005,
+ 0x275ac794649bb77c,
+ 0x1cf10fd839386575,
+ 0x235ba861180115be,
+ 0x354fe9f947398c89,
+ 0x741226bb15b5af5c,
+ 0x10233c990d34b6a8,
+ 0x615740953f6ab60f,
+ 0x77ae35eb7e0c57b1,
+ 0x310c50b3579be4f1,
+ },
+ .to_buff_len = 512,
+ .from_buff = {},
+ .from_buff_len = 0,
+ .seed = 0xffff,
+ .result = 0xca45
+ },
+};
+
+#define NUM_PULL_TESTS 4
+
+struct testcase pull_tests[NUM_PULL_TESTS] = {
+ {
+ .from_buff = {
+ 0xdeadbeefdeadbeef,
+ },
+ .from_buff_len = 8,
+ .to_buff = {},
+ .to_buff_len = 0,
+ .seed = 0,
+ .result = 0xc4c4
+ },
+ {
+ .from_buff = {
+ 0xdeadbeefdeadbeef,
+ 0xbeefdeadbeefdead,
+ },
+ .from_buff_len = 16,
+ .to_buff = {},
+ .to_buff_len = 0,
+ .seed = 0x1234,
+ .result = 0x9bbd
+ },
+ {
+ .from_buff = {
+ 0xdeadbeefdeadbeef,
+ 0xbeefdeadbeefdead,
+ },
+ .from_buff_len = 15,
+ .to_buff = {},
+ .to_buff_len = 0,
+ .seed = 0x1234,
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ .result = 0x59be
+#else
+ .result = 0x9c6a
+#endif
+ },
+ {
+ .from_buff = {
+ 0x327b23c66b8b4567,
+ 0x66334873643c9869,
+ 0x19495cff74b0dc51,
+ 0x625558ec2ae8944a,
+ 0x46e87ccd238e1f29,
+ 0x507ed7ab3d1b58ba,
+ 0x41b71efb2eb141f2,
+ 0x7545e14679e2a9e3,
+ 0x5bd062c2515f007c,
+ 0x4db127f812200854,
+ 0x1f16e9e80216231b,
+ 0x66ef438d1190cde7,
+ 0x3352255a140e0f76,
+ 0x0ded7263109cf92e,
+ 0x1befd79f7fdcc233,
+ 0x6b68079a41a7c4c9,
+ 0x25e45d324e6afb66,
+ 0x431bd7b7519b500d,
+ 0x7c83e4583f2dba31,
+ 0x62bbd95a257130a3,
+ 0x628c895d436c6125,
+ 0x721da317333ab105,
+ 0x2d1d5ae92443a858,
+ 0x75a2a8d46763845e,
+ 0x79838cb208edbdab,
+ 0x0b03e0c64353d0cd,
+ 0x54e49eb4189a769b,
+ 0x2ca8861171f32454,
+ 0x02901d820836c40e,
+ 0x081386413a95f874,
+ 0x7c3dbd3d1e7ff521,
+ 0x6ceaf087737b8ddc,
+ 0x4516dde922221a70,
+ 0x614fd4a13006c83e,
+ 0x5577f8e1419ac241,
+ 0x05072367440badfc,
+ 0x77465f013804823e,
+ 0x5c482a977724c67e,
+ 0x5e884adc2463b9ea,
+ 0x2d51779651ead36b,
+ 0x153ea438580bd78f,
+ 0x70a64e2a3855585c,
+ 0x2a487cb06a2342ec,
+ 0x725a06fb1d4ed43b,
+ 0x57e4ccaf2cd89a32,
+ 0x4b588f547a6d8d3c,
+ 0x6de91b18542289ec,
+ 0x7644a45c38437fdb,
+ 0x684a481a32fff902,
+ 0x749abb43579478fe,
+ 0x1ba026fa3dc240fb,
+ 0x75c6c33a79a1deaa,
+ 0x70c6a52912e685fb,
+ 0x374a3fe6520eedd1,
+ 0x23f9c13c4f4ef005,
+ 0x275ac794649bb77c,
+ 0x1cf10fd839386575,
+ 0x235ba861180115be,
+ 0x354fe9f947398c89,
+ 0x741226bb15b5af5c,
+ 0x10233c990d34b6a8,
+ 0x615740953f6ab60f,
+ 0x77ae35eb7e0c57b1,
+ 0x310c50b3579be4f1,
+ },
+ .from_buff_len = 512,
+ .to_buff = {},
+ .to_buff_len = 0,
+ .seed = 0xffff,
+ .result = 0x35ba
+ },
+};
+
+#define NUM_DIFF_TESTS 4
+
+struct testcase diff_tests[NUM_DIFF_TESTS] = {
+ {
+ .from_buff = {
+ 0xdeadbeefdeadbeef,
+ },
+ .from_buff_len = 8,
+ .to_buff = {
+ 0xabababababababab,
+ },
+ .to_buff_len = 8,
+ .seed = 0,
+ .result = 0x7373
+ },
+ {
+ .from_buff = {
+ 0xdeadbeefdeadbeef,
+ },
+ .from_buff_len = 7,
+ .to_buff = {
+ 0xabababababababab,
+ },
+ .to_buff_len = 7,
+ .seed = 0,
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ .result = 0xa673
+#else
+ .result = 0x73b7
+#endif
+ },
+ {
+ .from_buff = {
+ 0,
+ },
+ .from_buff_len = 8,
+ .to_buff = {
+ 0xabababababababab,
+ },
+ .to_buff_len = 8,
+ .seed = 0,
+ .result = 0xaeae
+ },
+ {
+ .from_buff = {
+ 0xdeadbeefdeadbeef
+ },
+ .from_buff_len = 8,
+ .to_buff = {
+ 0,
+ },
+ .to_buff_len = 8,
+ .seed = 0xffff,
+ .result = 0xc4c4
+ },
+};
+
+#define NUM_EDGE_TESTS 4
+
+struct testcase edge_tests[NUM_EDGE_TESTS] = {
+ {
+ .from_buff = {},
+ .from_buff_len = 0,
+ .to_buff = {},
+ .to_buff_len = 0,
+ .seed = 0,
+ .result = 0
+ },
+ {
+ .from_buff = {
+ 0x1234
+ },
+ .from_buff_len = 0,
+ .to_buff = {
+ 0x1234
+ },
+ .to_buff_len = 0,
+ .seed = 0,
+ .result = 0
+ },
+ {
+ .from_buff = {},
+ .from_buff_len = 0,
+ .to_buff = {},
+ .to_buff_len = 0,
+ .seed = 0x1234,
+ .result = 0x1234
+ },
+ {
+ .from_buff = {},
+ .from_buff_len = 512,
+ .to_buff = {},
+ .to_buff_len = 0,
+ .seed = 0xffff,
+ .result = 0xffff
+ },
+};
+
+static unsigned short trigger_csum_diff(const struct csum_diff_test *skel)
+{
+ u8 tmp_out[64 << 2] = {};
+ u8 tmp_in[64] = {};
+ int err;
+ int pfd;
+
+ LIBBPF_OPTS(bpf_test_run_opts, topts,
+ .data_in = tmp_in,
+ .data_size_in = sizeof(tmp_in),
+ .data_out = tmp_out,
+ .data_size_out = sizeof(tmp_out),
+ .repeat = 1,
+ );
+ pfd = bpf_program__fd(skel->progs.compute_checksum);
+ err = bpf_prog_test_run_opts(pfd, &topts);
+ if (err)
+ return -1;
+
+ return skel->bss->result;
+}
+
+static void test_csum_diff(struct testcase *tests, int num_tests)
+{
+ struct csum_diff_test *skel;
+ unsigned short got;
+ int err;
+
+ for (int i = 0; i < num_tests; i++) {
+ skel = csum_diff_test__open();
+ if (!ASSERT_OK_PTR(skel, "csum_diff_test open"))
+ return;
+
+ skel->rodata->to_buff_len = tests[i].to_buff_len;
+ skel->rodata->from_buff_len = tests[i].from_buff_len;
+
+ err = csum_diff_test__load(skel);
+ if (!ASSERT_EQ(err, 0, "csum_diff_test load"))
+ goto out;
+
+ memcpy(skel->bss->to_buff, tests[i].to_buff, tests[i].to_buff_len);
+ memcpy(skel->bss->from_buff, tests[i].from_buff, tests[i].from_buff_len);
+ skel->bss->seed = tests[i].seed;
+
+ got = trigger_csum_diff(skel);
+ ASSERT_EQ(got, tests[i].result, "csum_diff result");
+
+ csum_diff_test__destroy(skel);
+ }
+
+ return;
+out:
+ csum_diff_test__destroy(skel);
+}
+
+void test_test_csum_diff(void)
+{
+ if (test__start_subtest("csum_diff_push"))
+ test_csum_diff(push_tests, NUM_PUSH_TESTS);
+ if (test__start_subtest("csum_diff_pull"))
+ test_csum_diff(pull_tests, NUM_PULL_TESTS);
+ if (test__start_subtest("csum_diff_diff"))
+ test_csum_diff(diff_tests, NUM_DIFF_TESTS);
+ if (test__start_subtest("csum_diff_edge"))
+ test_csum_diff(edge_tests, NUM_EDGE_TESTS);
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.