#define NUM_EXTRA_CERTS 40
+/*
+ * This structure is used to validate that the correct number of log messages
+ * of various types are emitted when emitting secret logs.
+ */
+struct sslapitest_log_counts {
+ unsigned int rsa_key_exchange_count;
+ unsigned int master_secret_count;
+ unsigned int client_handshake_secret_count;
+ unsigned int server_handshake_secret_count;
+ unsigned int client_application_secret_count;
+ unsigned int server_application_secret_count;
+};
+
static void client_keylog_callback(const SSL *ssl, const char *line) {
int line_length = strlen(line);
}
static int test_keylog_output(char *buffer, const SSL *ssl,
- const SSL_SESSION *session) {
- int saw_client_random = 0;
+ const SSL_SESSION *session,
+ struct sslapitest_log_counts *expected) {
char *token = NULL;
unsigned char actual_client_random[SSL3_RANDOM_SIZE] = {0};
size_t client_random_size = SSL3_RANDOM_SIZE;
unsigned char actual_master_key[SSL_MAX_MASTER_KEY_LENGTH] = {0};
size_t master_key_size = SSL_MAX_MASTER_KEY_LENGTH;
+ unsigned int rsa_key_exchange_count = 0;
+ unsigned int master_secret_count = 0;
+ unsigned int client_handshake_secret_count = 0;
+ unsigned int server_handshake_secret_count = 0;
+ unsigned int client_application_secret_count = 0;
+ unsigned int server_application_secret_count = 0;
token = strtok(buffer, " \n");
while (token) {
if (strcmp(token, "RSA") == 0) {
- /* Premaster secret. Tokens should be: 16 ASCII bytes of
+ /*
+ * Premaster secret. Tokens should be: 16 ASCII bytes of
* hex-encoded encrypted secret, then the hex-encoded pre-master
* secret.
*/
token = strtok(NULL, " \n");
if (!token) {
printf("Unexpectedly short premaster secret log.\n");
- return -1;
+ return 0;
}
if (strlen(token) != 16) {
printf("Bad value for encrypted secret: %s\n", token);
- return -1;
+ return 0;
}
token = strtok(NULL, " \n");
if (!token) {
printf("Unexpectedly short premaster secret log.\n");
- return -1;
+ return 0;
}
- /* TODO: Can I check this sensibly? */
+ /*
+ * We can't sensibly check the log because the premaster secret is
+ * transient, and OpenSSL doesn't keep hold of it once the master
+ * secret is generated.
+ */
+ rsa_key_exchange_count++;
} else if (strcmp(token, "CLIENT_RANDOM") == 0) {
- /* Master secret. Tokens should be: 64 ASCII bytes of hex-encoded
+ /*
+ * Master secret. Tokens should be: 64 ASCII bytes of hex-encoded
* client random, then the hex-encoded master secret.
*/
client_random_size = SSL_get_client_random(ssl,
SSL3_RANDOM_SIZE);
if (client_random_size != SSL3_RANDOM_SIZE) {
printf("Unexpected short client random.\n");
- return -1;
+ return 0;
}
token = strtok(NULL, " \n");
if (!token) {
printf("Unexpected short master secret log.\n");
- return -1;
+ return 0;
}
if (strlen(token) != 64) {
printf("Bad value for client random: %s\n", token);
- return -1;
+ return 0;
}
if (compare_hex_encoded_buffer(token, 64, actual_client_random,
client_random_size)) {
printf("Bad value for client random: %s\n", token);
- return -1;
+ return 0;
}
token = strtok(NULL, " \n");
if (!token) {
printf("Unexpectedly short master secret log.\n");
- return -1;
+ return 0;
}
master_key_size = SSL_SESSION_get_master_key(session,
master_key_size);
if (!master_key_size) {
printf("Error getting master key to compare.\n");
- return -1;
+ return 0;
}
if (compare_hex_encoded_buffer(token, strlen(token),
actual_master_key,
master_key_size)) {
printf("Bad value for master key: %s\n", token);
- return -1;
+ return 0;
}
- saw_client_random = 1;
+ master_secret_count++;
+ } else if ((strcmp(token, "CLIENT_HANDSHAKE_TRAFFIC_SECRET") == 0) ||
+ (strcmp(token, "SERVER_HANDSHAKE_TRAFFIC_SECRET") == 0) ||
+ (strcmp(token, "CLIENT_TRAFFIC_SECRET_0") == 0) ||
+ (strcmp(token, "SERVER_TRAFFIC_SECRET_0") == 0)) {
+ /*
+ * TLSv1.3 secret. Tokens should be: 64 ASCII bytes of hex-encoded
+ * client random, and then the hex-encoded secret. In this case,
+ * we treat all of these secrets identically and then just
+ * distinguish between them when counting what we saw.
+ */
+ if (strcmp(token, "CLIENT_HANDSHAKE_TRAFFIC_SECRET") == 0)
+ client_handshake_secret_count++;
+ else if (strcmp(token, "SERVER_HANDSHAKE_TRAFFIC_SECRET") == 0)
+ server_handshake_secret_count++;
+ else if (strcmp(token, "CLIENT_TRAFFIC_SECRET_0") == 0)
+ client_application_secret_count++;
+ else if (strcmp(token, "SERVER_TRAFFIC_SECRET_0") == 0)
+ server_application_secret_count++;
+
+ client_random_size = SSL_get_client_random(ssl,
+ actual_client_random,
+ SSL3_RANDOM_SIZE);
+ if (client_random_size != SSL3_RANDOM_SIZE) {
+ printf("Unexpected short client random.\n");
+ return 0;
+ }
+
+ token = strtok(NULL, " \n");
+ if (!token) {
+ printf("Unexpected short client handshake secret log.\n");
+ return 0;
+ }
+ if (strlen(token) != 64) {
+ printf("Bad value for client random: %s\n", token);
+ return 0;
+ }
+ if (compare_hex_encoded_buffer(token, 64, actual_client_random,
+ client_random_size)) {
+ printf("Bad value for client random: %s\n", token);
+ return 0;
+ }
+
+ token = strtok(NULL, " \n");
+ if (!token) {
+ printf("Unexpectedly short master secret log.\n");
+ return 0;
+ }
+
+ /*
+ * TODO(TLS1.3): test that application traffic secrets are what
+ * we expect */
} else {
printf("Unexpected token in buffer: %s\n", token);
- return -1;
+ return 0;
}
token = strtok(NULL, " \n");
}
- return saw_client_random;
+ /* Return whether we got what we expected. */
+ return ((rsa_key_exchange_count == expected->rsa_key_exchange_count) &&
+ (master_secret_count == expected->master_secret_count) &&
+ (client_handshake_secret_count == expected->client_handshake_secret_count) &&
+ (server_handshake_secret_count == expected->server_handshake_secret_count) &&
+ (client_application_secret_count == expected->client_application_secret_count) &&
+ (server_application_secret_count == expected->server_application_secret_count));
}
static int test_keylog(void) {
SSL *clientssl = NULL, *serverssl = NULL;
int testresult = 0;
int rc;
+ struct sslapitest_log_counts expected = {0};
/* Clean up logging space */
memset(client_log_buffer, 0, LOG_BUFFER_SIZE + 1);
goto end;
}
- /* Now we want to test that our output data was vaguely sensible. We
+ /*
+ * Now we want to test that our output data was vaguely sensible. We
* do that by using strtok and confirming that we have more or less the
- * data we expect.
+ * data we expect. For both client and server, we expect to see one master
+ * secret. The client should also see a RSA key exchange.
*/
- if (test_keylog_output(client_log_buffer, clientssl,
- SSL_get_session(clientssl)) != 1) {
+ expected.rsa_key_exchange_count = 1;
+ expected.master_secret_count = 1;
+ if (!test_keylog_output(client_log_buffer, clientssl,
+ SSL_get_session(clientssl), &expected)) {
printf("Error encountered in client log buffer\n");
goto end;
}
- if (test_keylog_output(server_log_buffer, serverssl,
- SSL_get_session(serverssl)) != 1) {
+
+ expected.rsa_key_exchange_count = 0;
+ if (!test_keylog_output(server_log_buffer, serverssl,
+ SSL_get_session(serverssl), &expected)) {
printf("Error encountered in server log buffer\n");
goto end;
}
SSL_CTX *cctx = NULL, *sctx = NULL;
SSL *clientssl = NULL, *serverssl = NULL;
int testresult = 0;
+ struct sslapitest_log_counts expected = {0};
/* Clean up logging space */
memset(client_log_buffer, 0, LOG_BUFFER_SIZE + 1);
goto end;
}
- /* Now we want to test that our output data was vaguely sensible. For this
- * test, we expect no CLIENT_RANDOM entry.
+ /*
+ * Now we want to test that our output data was vaguely sensible. For this
+ * test, we expect no CLIENT_RANDOM entry becuase it doesn't make sense for
+ * TLSv1.3, but we do expect both client and server to emit keys.
*/
- if (test_keylog_output(client_log_buffer, clientssl,
- SSL_get_session(clientssl)) != 0) {
+ expected.client_handshake_secret_count = 1;
+ expected.server_handshake_secret_count = 1;
+ expected.client_application_secret_count = 1;
+ expected.server_application_secret_count = 1;
+ if (!test_keylog_output(client_log_buffer, clientssl,
+ SSL_get_session(clientssl), &expected)) {
printf("Error encountered in client log buffer\n");
goto end;
}
- if (test_keylog_output(server_log_buffer, serverssl,
- SSL_get_session(serverssl)) != 0) {
+ if (!test_keylog_output(server_log_buffer, serverssl,
+ SSL_get_session(serverssl), &expected)) {
printf("Error encountered in server log buffer\n");
goto end;
}
projects / openssl.git / blobdiff