+static const char *alpn_client;
+static const char *alpn_server;
+static const char *alpn_expected;
+static unsigned char *alpn_selected;
+
+/*-
+ * next_protos_parse parses a comma separated list of strings into a string
+ * in a format suitable for passing to SSL_CTX_set_next_protos_advertised.
+ * outlen: (output) set to the length of the resulting buffer on success.
+ * err: (maybe NULL) on failure, an error message line is written to this BIO.
+ * in: a NUL terminated string like "abc,def,ghi"
+ *
+ * returns: a malloced buffer or NULL on failure.
+ */
+static unsigned char *next_protos_parse(unsigned short *outlen,
+ const char *in)
+{
+ size_t len;
+ unsigned char *out;
+ size_t i, start = 0;
+
+ len = strlen(in);
+ if (len >= 65535)
+ return NULL;
+
+ out = OPENSSL_malloc(strlen(in) + 1);
+ if (!out)
+ return NULL;
+
+ for (i = 0; i <= len; ++i) {
+ if (i == len || in[i] == ',') {
+ if (i - start > 255) {
+ OPENSSL_free(out);
+ return NULL;
+ }
+ out[start] = i - start;
+ start = i + 1;
+ } else
+ out[i + 1] = in[i];
+ }
+
+ *outlen = len + 1;
+ return out;
+}
+
+static int cb_server_alpn(SSL *s, const unsigned char **out,
+ unsigned char *outlen, const unsigned char *in,
+ unsigned int inlen, void *arg)
+{
+ unsigned char *protos;
+ unsigned short protos_len;
+
+ protos = next_protos_parse(&protos_len, alpn_server);
+ if (protos == NULL) {
+ fprintf(stderr, "failed to parser ALPN server protocol string: %s\n",
+ alpn_server);
+ abort();
+ }
+
+ if (SSL_select_next_proto
+ ((unsigned char **)out, outlen, protos, protos_len, in,
+ inlen) != OPENSSL_NPN_NEGOTIATED) {
+ OPENSSL_free(protos);
+ return SSL_TLSEXT_ERR_NOACK;
+ }
+
+ /*
+ * Make a copy of the selected protocol which will be freed in
+ * verify_alpn.
+ */
+ alpn_selected = OPENSSL_malloc(*outlen);
+ memcpy(alpn_selected, *out, *outlen);
+ *out = alpn_selected;
+
+ OPENSSL_free(protos);
+ return SSL_TLSEXT_ERR_OK;
+}
+
+static int verify_alpn(SSL *client, SSL *server)
+{
+ const unsigned char *client_proto, *server_proto;
+ unsigned int client_proto_len = 0, server_proto_len = 0;
+ SSL_get0_alpn_selected(client, &client_proto, &client_proto_len);
+ SSL_get0_alpn_selected(server, &server_proto, &server_proto_len);
+
+ if (alpn_selected != NULL) {
+ OPENSSL_free(alpn_selected);
+ alpn_selected = NULL;
+ }
+
+ if (client_proto_len != server_proto_len ||
+ memcmp(client_proto, server_proto, client_proto_len) != 0) {
+ BIO_printf(bio_stdout, "ALPN selected protocols differ!\n");
+ goto err;
+ }
+
+ if (client_proto_len > 0 && alpn_expected == NULL) {
+ BIO_printf(bio_stdout, "ALPN unexpectedly negotiated\n");
+ goto err;
+ }
+
+ if (alpn_expected != NULL &&
+ (client_proto_len != strlen(alpn_expected) ||
+ memcmp(client_proto, alpn_expected, client_proto_len) != 0)) {
+ BIO_printf(bio_stdout,
+ "ALPN selected protocols not equal to expected protocol: %s\n",
+ alpn_expected);
+ goto err;
+ }
+
+ return 0;
+
+ err:
+ BIO_printf(bio_stdout, "ALPN results: client: '");
+ BIO_write(bio_stdout, client_proto, client_proto_len);
+ BIO_printf(bio_stdout, "', server: '");
+ BIO_write(bio_stdout, server_proto, server_proto_len);
+ BIO_printf(bio_stdout, "'\n");
+ BIO_printf(bio_stdout, "ALPN configured: client: '%s', server: '%s'\n",
+ alpn_client, alpn_server);
+ return -1;
+}
+
+#define SCT_EXT_TYPE 18
+
+/*
+ * WARNING : below extension types are *NOT* IETF assigned, and could
+ * conflict if these types are reassigned and handled specially by OpenSSL
+ * in the future
+ */
+#define TACK_EXT_TYPE 62208
+#define CUSTOM_EXT_TYPE_0 1000
+#define CUSTOM_EXT_TYPE_1 1001
+#define CUSTOM_EXT_TYPE_2 1002
+#define CUSTOM_EXT_TYPE_3 1003
+
+const char custom_ext_cli_string[] = "abc";
+const char custom_ext_srv_string[] = "defg";
+
+/* These set from cmdline */
+char *serverinfo_file = NULL;
+int serverinfo_sct = 0;
+int serverinfo_tack = 0;
+
+/* These set based on extension callbacks */
+int serverinfo_sct_seen = 0;
+int serverinfo_tack_seen = 0;
+int serverinfo_other_seen = 0;
+
+/* This set from cmdline */
+int custom_ext = 0;
+
+/* This set based on extension callbacks */
+int custom_ext_error = 0;
+
+static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in, size_t inlen,
+ int *al, void *arg)
+{
+ if (ext_type == SCT_EXT_TYPE)
+ serverinfo_sct_seen++;
+ else if (ext_type == TACK_EXT_TYPE)
+ serverinfo_tack_seen++;
+ else
+ serverinfo_other_seen++;
+ return 1;
+}
+
+static int verify_serverinfo()
+{
+ if (serverinfo_sct != serverinfo_sct_seen)
+ return -1;
+ if (serverinfo_tack != serverinfo_tack_seen)
+ return -1;
+ if (serverinfo_other_seen)
+ return -1;
+ return 0;
+}
+
+/*-
+ * Four test cases for custom extensions:
+ * 0 - no ClientHello extension or ServerHello response
+ * 1 - ClientHello with "abc", no response
+ * 2 - ClientHello with "abc", empty response
+ * 3 - ClientHello with "abc", "defg" response
+ */
+
+static int custom_ext_0_cli_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_0)
+ custom_ext_error = 1;
+ return 0; /* Don't send an extension */
+}
+
+static int custom_ext_0_cli_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ return 1;
+}
+
+static int custom_ext_1_cli_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_1)
+ custom_ext_error = 1;
+ *out = (const unsigned char *)custom_ext_cli_string;
+ *outlen = strlen(custom_ext_cli_string);
+ return 1; /* Send "abc" */
+}
+
+static int custom_ext_1_cli_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ return 1;
+}
+
+static int custom_ext_2_cli_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_2)
+ custom_ext_error = 1;
+ *out = (const unsigned char *)custom_ext_cli_string;
+ *outlen = strlen(custom_ext_cli_string);
+ return 1; /* Send "abc" */
+}
+
+static int custom_ext_2_cli_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_2)
+ custom_ext_error = 1;
+ if (inlen != 0)
+ custom_ext_error = 1; /* Should be empty response */
+ return 1;
+}
+
+static int custom_ext_3_cli_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_3)
+ custom_ext_error = 1;
+ *out = (const unsigned char *)custom_ext_cli_string;
+ *outlen = strlen(custom_ext_cli_string);
+ return 1; /* Send "abc" */
+}
+
+static int custom_ext_3_cli_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_3)
+ custom_ext_error = 1;
+ if (inlen != strlen(custom_ext_srv_string))
+ custom_ext_error = 1;
+ if (memcmp(custom_ext_srv_string, in, inlen) != 0)
+ custom_ext_error = 1; /* Check for "defg" */
+ return 1;
+}
+
+/*
+ * custom_ext_0_cli_add_cb returns 0 - the server won't receive a callback
+ * for this extension
+ */
+static int custom_ext_0_srv_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ custom_ext_error = 1;
+ return 1;
+}
+
+/* 'add' callbacks are only called if the 'parse' callback is called */
+static int custom_ext_0_srv_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ /* Error: should not have been called */
+ custom_ext_error = 1;
+ return 0; /* Don't send an extension */
+}
+
+static int custom_ext_1_srv_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_1)
+ custom_ext_error = 1;
+ /* Check for "abc" */
+ if (inlen != strlen(custom_ext_cli_string))
+ custom_ext_error = 1;
+ if (memcmp(in, custom_ext_cli_string, inlen) != 0)
+ custom_ext_error = 1;
+ return 1;
+}
+
+static int custom_ext_1_srv_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ return 0; /* Don't send an extension */
+}
+
+static int custom_ext_2_srv_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_2)
+ custom_ext_error = 1;
+ /* Check for "abc" */
+ if (inlen != strlen(custom_ext_cli_string))
+ custom_ext_error = 1;
+ if (memcmp(in, custom_ext_cli_string, inlen) != 0)
+ custom_ext_error = 1;
+ return 1;
+}
+
+static int custom_ext_2_srv_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ *out = NULL;
+ *outlen = 0;
+ return 1; /* Send empty extension */
+}
+
+static int custom_ext_3_srv_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ if (ext_type != CUSTOM_EXT_TYPE_3)
+ custom_ext_error = 1;
+ /* Check for "abc" */
+ if (inlen != strlen(custom_ext_cli_string))
+ custom_ext_error = 1;
+ if (memcmp(in, custom_ext_cli_string, inlen) != 0)
+ custom_ext_error = 1;
+ return 1;
+}
+
+static int custom_ext_3_srv_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out,
+ size_t *outlen, int *al, void *arg)
+{
+ *out = (const unsigned char *)custom_ext_srv_string;
+ *outlen = strlen(custom_ext_srv_string);
+ return 1; /* Send "defg" */
+}
+
+static char *cipher = NULL;
+static int verbose = 0;
+static int debug = 0;
+static const char rnd_seed[] =
+ "string to make the random number generator think it has entropy";
+
+int doit_biopair(SSL *s_ssl, SSL *c_ssl, long bytes, clock_t *s_time,
+ clock_t *c_time);
+int doit(SSL *s_ssl, SSL *c_ssl, long bytes);
+static int do_test_cipherlist(void);