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Test DTLS replay protection

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This commit is contained in:
Juliusz Sosinowicz
2025-08-07 14:12:42 +02:00
parent 339f7efbf4
commit 0d532cc3f2
5 changed files with 89 additions and 0 deletions
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1
tests/api.c
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@@ -53212,6 +53212,7 @@ TEST_DECL(test_wc_RsaPSS_DigitalSignVerify),
TEST_DECL(test_dtls13_epochs),
TEST_DECL(test_dtls_rtx_across_epoch_change),
TEST_DECL(test_dtls_drop_client_ack),
TEST_DECL(test_dtls_replay),
TEST_DECL(test_dtls13_ack_order),
TEST_DECL(test_dtls_version_checking),
TEST_DECL(test_ocsp_status_callback),

53
tests/api/test_dtls.c
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@@ -1393,6 +1393,7 @@ int test_dtls_rtx_across_epoch_change(void)
defined(WOLFSSL_DTLS13) */
return EXPECT_RESULT();
}
int test_dtls_drop_client_ack(void)
{
EXPECT_DECLS;
@@ -1472,3 +1473,55 @@ int test_dtls_drop_client_ack(void)
defined(WOLFSSL_DTLS13) */
return EXPECT_RESULT();
}
int test_dtls_replay(void)
{
EXPECT_DECLS;
#if defined(HAVE_MANUAL_MEMIO_TESTS_DEPENDENCIES) && defined(WOLFSSL_DTLS)
size_t i;
struct {
method_provider client_meth;
method_provider server_meth;
const char* tls_version;
} params[] = {
#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_DTLS13)
{ wolfDTLSv1_3_client_method, wolfDTLSv1_3_server_method, "DTLSv1_3" },
#endif
#if !defined(WOLFSSL_NO_TLS12) && defined(WOLFSSL_DTLS)
{ wolfDTLSv1_2_client_method, wolfDTLSv1_2_server_method, "DTLSv1_2" },
#endif
#if !defined(NO_OLD_TLS) && defined(WOLFSSL_DTLS)
{ wolfDTLSv1_client_method, wolfDTLSv1_server_method, "DTLSv1_0" },
#endif
};
for (i = 0; i < XELEM_CNT(params) && !EXPECT_FAIL(); i++) {
WOLFSSL_CTX *ctx_c = NULL, *ctx_s = NULL;
WOLFSSL *ssl_c = NULL, *ssl_s = NULL;
struct test_memio_ctx test_ctx;
char msg_buf[256];
int msg_len = sizeof(msg_buf);
byte app_data[8];
XMEMSET(&test_ctx, 0, sizeof(test_ctx));
/* Setup DTLS contexts */
ExpectIntEQ(test_memio_setup(&test_ctx, &ctx_c, &ctx_s, &ssl_c, &ssl_s,
params[i].client_meth, params[i].server_meth), 0);
ExpectIntEQ(test_memio_do_handshake(ssl_c, ssl_s, 10, NULL), 0);
ExpectIntEQ(wolfSSL_write(ssl_c, "test", 4), 4);
ExpectIntEQ(test_memio_copy_message(&test_ctx, 0, msg_buf, &msg_len, 0), 0);
ExpectIntEQ(wolfSSL_read(ssl_s, app_data, sizeof(app_data)), 4);
ExpectIntEQ(test_memio_inject_message(&test_ctx, 0, msg_buf, msg_len), 0);
ExpectIntEQ(wolfSSL_read(ssl_s, app_data, sizeof(app_data)), -1);
ExpectIntEQ(wolfSSL_get_error(ssl_s, -1), WOLFSSL_ERROR_WANT_READ);
wolfSSL_free(ssl_c);
wolfSSL_CTX_free(ctx_c);
wolfSSL_free(ssl_s);
wolfSSL_CTX_free(ctx_s);
}
#endif
return EXPECT_RESULT();
}

1
tests/api/test_dtls.h
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@@ -38,4 +38,5 @@ int test_records_span_network_boundaries(void);
int test_dtls_record_cross_boundaries(void);
int test_dtls_rtx_across_epoch_change(void);
int test_dtls_drop_client_ack(void);
int test_dtls_replay(void);
#endif /* TESTS_API_DTLS_H */

32
tests/utils.c
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@@ -405,6 +405,38 @@ int test_memio_inject_message(struct test_memio_ctx* ctx, int client,
return 0;
}
int test_memio_copy_message(const struct test_memio_ctx *ctx, int client,
char *out, int *out_sz, int msg_pos)
{
int msg_count;
const int* msg_sizes;
int i;
const byte* buff;
if (client) {
buff = ctx->c_buff;
msg_count = ctx->c_msg_count;
msg_sizes = ctx->c_msg_sizes;
}
else {
buff = ctx->s_buff;
msg_count = ctx->s_msg_count;
msg_sizes = ctx->s_msg_sizes;
}
if (msg_pos < 0 || msg_pos >= msg_count) {
return -1;
}
if (*out_sz < msg_sizes[msg_pos]) {
return -1;
}
for (i = 0; i < msg_pos; i++) {
buff += msg_sizes[i];
}
XMEMCPY(out, buff, (size_t)msg_sizes[msg_pos]);
*out_sz = msg_sizes[msg_pos];
return 0;
}
int test_memio_drop_message(struct test_memio_ctx *ctx, int client, int msg_pos)
{
int *len;

2
tests/utils.h
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@@ -66,6 +66,8 @@ int test_memio_setup_ex(struct test_memio_ctx *ctx,
byte *serverKey, int serverKeySz);
void test_memio_clear_buffer(struct test_memio_ctx *ctx, int is_client);
int test_memio_inject_message(struct test_memio_ctx *ctx, int client, const char *data, int sz);
int test_memio_copy_message(const struct test_memio_ctx *ctx, int client,
char *out, int *out_sz, int msg_pos);
int test_memio_drop_message(struct test_memio_ctx *ctx, int client, int msg_pos);
int test_memio_modify_message_len(struct test_memio_ctx *ctx, int client, int msg_pos, int new_len);
int test_memio_remove_from_buffer(struct test_memio_ctx *ctx, int client, int off, int sz);