X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=ssl%2Fssltest.c;h=c126eb627bde81e6bab44472d69f1684d9cd422e;hb=2fc368c1115bd789b47d070111ec898db23c58c2;hp=3c010409abeb5e3cd8d5908c867a074eb86b46da;hpb=2e00f46b515ecf3c6378d7e7362e7c0044a204cc;p=oweals%2Fopenssl.git

diff --git a/ssl/ssltest.c b/ssl/ssltest.c
index 3c010409ab..c126eb627b 100644
--- a/ssl/ssltest.c
+++ b/ssl/ssltest.c
@@ -295,6 +295,363 @@ static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 static BIO *bio_err=NULL;
 static BIO *bio_stdout=NULL;
 
+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 termianted 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_cb(SSL* s, unsigned short ext_type,
+			     const unsigned char* in, unsigned short 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_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char **out,
+				     unsigned short *outlen, void *arg)
+	{
+	if (ext_type != CUSTOM_EXT_TYPE_0)
+		custom_ext_error = 1;
+	return -1;  /* Don't send an extension */
+	}
+
+static int custom_ext_0_cli_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char *in,
+				      unsigned short inlen, int *al,
+				      void *arg)
+	{
+	custom_ext_error = 1; /* Shouldn't be called */
+	return 0;
+	}
+
+static int custom_ext_1_cli_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char **out,
+				     unsigned short *outlen, 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_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char *in,
+				      unsigned short inlen, int *al,
+				      void *arg)
+	{
+	custom_ext_error = 1; /* Shouldn't be called */
+	return 0;
+	}
+
+static int custom_ext_2_cli_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char **out,
+				     unsigned short *outlen, 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_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char *in,
+				      unsigned short 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_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char **out,
+				     unsigned short *outlen, 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_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char *in,
+				      unsigned short 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;
+	}
+
+
+static int custom_ext_0_srv_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char *in,
+				     unsigned short inlen, int *al,
+				     void *arg)
+	{
+	custom_ext_error = 1;
+	return 0; /* Shouldn't be called */
+	}
+
+static int custom_ext_0_srv_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char **out,
+				      unsigned short *outlen, void *arg)
+	{
+	custom_ext_error = 1;
+	return 0; /* Shouldn't be called */
+	}
+
+static int custom_ext_1_srv_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char *in,
+				     unsigned short 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_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char **out,
+				      unsigned short *outlen, void *arg)
+	{
+	return -1; /* Don't send an extension */
+	}
+
+static int custom_ext_2_srv_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char *in,
+				     unsigned short 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_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char **out,
+				      unsigned short *outlen, void *arg)
+	{
+	*out = NULL;
+	*outlen = 0;
+	return 1; /* Send empty extension */
+	}
+
+static int custom_ext_3_srv_first_cb(SSL *s, unsigned short ext_type,
+				     const unsigned char *in,
+				     unsigned short 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_second_cb(SSL *s, unsigned short ext_type,
+				      const unsigned char **out,
+				      unsigned short *outlen, 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;
@@ -374,6 +731,13 @@ static void sv_usage(void)
 	fprintf(stderr," -c_support_proof  - indicate client support for server_authz audit proofs\n");
 	fprintf(stderr," -c_require_proof  - fail if no audit proof is sent\n");
 #endif
+	fprintf(stderr," -serverinfo_file file - have server use this file\n");
+	fprintf(stderr," -serverinfo_sct  - have client offer and expect SCT\n");
+	fprintf(stderr," -serverinfo_tack - have client offer and expect TACK\n");
+	fprintf(stderr," -custom_ext - try various custom extension callbacks\n");
+	fprintf(stderr," -alpn_client <string> - have client side offer ALPN\n");
+	fprintf(stderr," -alpn_server <string> - have server side offer ALPN\n");
+	fprintf(stderr," -alpn_expected <string> - the ALPN protocol that should be negotiated\n");
 	}
 
 static void print_details(SSL *c_ssl, const char *prefix)
@@ -845,6 +1209,38 @@ int main(int argc, char *argv[])
 			tls1 = 1;
 			}
 #endif
+		else if (strcmp(*argv,"-serverinfo_sct") == 0)
+			{
+			serverinfo_sct = 1;
+			}
+		else if (strcmp(*argv,"-serverinfo_tack") == 0)
+			{
+			serverinfo_tack = 1;
+			}
+		else if (strcmp(*argv,"-serverinfo_file") == 0)
+			{
+			if (--argc < 1) goto bad;
+			serverinfo_file = *(++argv);
+			}
+		else if (strcmp(*argv,"-custom_ext") == 0)
+			{
+			custom_ext = 1;
+			}
+		else if (strcmp(*argv,"-alpn_client") == 0)
+			{
+			if (--argc < 1) goto bad;
+			alpn_client = *(++argv);
+			}
+		else if (strcmp(*argv,"-alpn_server") == 0)
+			{
+			if (--argc < 1) goto bad;
+			alpn_server = *(++argv);
+			}
+		else if (strcmp(*argv,"-alpn_expected") == 0)
+			{
+			if (--argc < 1) goto bad;
+			alpn_expected = *(++argv);
+			}
 		else
 			{
 			fprintf(stderr,"unknown option %s\n",*argv);
@@ -970,7 +1366,13 @@ bad:
 		meth=SSLv23_method();
 #else
 #ifdef OPENSSL_NO_SSL2
-	meth=SSLv3_method();
+	if (tls1)
+		meth=TLSv1_method();
+	else
+	if (ssl3)
+		meth=SSLv3_method();
+	else
+		meth=SSLv23_method();
 #else
 	meth=SSLv2_method();
 #endif
@@ -1181,6 +1583,67 @@ bad:
 		}
 #endif
 
+	if (serverinfo_sct)
+		SSL_CTX_set_custom_cli_ext(c_ctx, SCT_EXT_TYPE, NULL, 
+					   serverinfo_cli_cb, NULL);
+	if (serverinfo_tack)
+		SSL_CTX_set_custom_cli_ext(c_ctx, TACK_EXT_TYPE, NULL,
+					   serverinfo_cli_cb, NULL);
+
+	if (serverinfo_file)
+		if (!SSL_CTX_use_serverinfo_file(s_ctx, serverinfo_file))
+			{
+			BIO_printf(bio_err, "missing serverinfo file\n");
+			goto end;
+			}
+
+	if (custom_ext)
+		{
+		SSL_CTX_set_custom_cli_ext(c_ctx, CUSTOM_EXT_TYPE_0, 
+					   custom_ext_0_cli_first_cb, 
+					   custom_ext_0_cli_second_cb, NULL);
+		SSL_CTX_set_custom_cli_ext(c_ctx, CUSTOM_EXT_TYPE_1, 
+					   custom_ext_1_cli_first_cb, 
+					   custom_ext_1_cli_second_cb, NULL);
+		SSL_CTX_set_custom_cli_ext(c_ctx, CUSTOM_EXT_TYPE_2, 
+					   custom_ext_2_cli_first_cb, 
+					   custom_ext_2_cli_second_cb, NULL);
+		SSL_CTX_set_custom_cli_ext(c_ctx, CUSTOM_EXT_TYPE_3, 
+					   custom_ext_3_cli_first_cb, 
+					   custom_ext_3_cli_second_cb, NULL);
+
+
+		SSL_CTX_set_custom_srv_ext(s_ctx, CUSTOM_EXT_TYPE_0, 
+					   custom_ext_0_srv_first_cb, 
+					   custom_ext_0_srv_second_cb, NULL);
+		SSL_CTX_set_custom_srv_ext(s_ctx, CUSTOM_EXT_TYPE_1, 
+					   custom_ext_1_srv_first_cb, 
+					   custom_ext_1_srv_second_cb, NULL);
+		SSL_CTX_set_custom_srv_ext(s_ctx, CUSTOM_EXT_TYPE_2, 
+					   custom_ext_2_srv_first_cb, 
+					   custom_ext_2_srv_second_cb, NULL);
+		SSL_CTX_set_custom_srv_ext(s_ctx, CUSTOM_EXT_TYPE_3, 
+					   custom_ext_3_srv_first_cb, 
+					   custom_ext_3_srv_second_cb, NULL);
+		}
+
+	if (alpn_server)
+		SSL_CTX_set_alpn_select_cb(s_ctx, cb_server_alpn, NULL);
+
+	if (alpn_client)
+		{
+		unsigned short alpn_len;
+		unsigned char *alpn = next_protos_parse(&alpn_len, alpn_client);
+
+		if (alpn == NULL)
+			{
+			BIO_printf(bio_err, "Error parsing -alpn_client argument\n");
+			goto end;
+			}
+		SSL_CTX_set_alpn_protos(c_ctx, alpn, alpn_len);
+		OPENSSL_free(alpn);
+		}
+
 	c_ssl=SSL_new(c_ctx);
 	s_ssl=SSL_new(s_ctx);
 
@@ -1635,6 +2098,24 @@ int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count,
 
 	if (verbose)
 		print_details(c_ssl, "DONE via BIO pair: ");
+
+	if (verify_serverinfo() < 0)
+		{
+		ret = 1;
+		goto err;
+		}
+	if (verify_alpn(c_ssl, s_ssl) < 0)
+		{
+		ret = 1;
+		goto err;
+		}
+
+	if (custom_ext_error)
+		{
+		ret = 1;
+		goto err;
+		}
+
 end:
 	ret = 0;
 
@@ -1930,6 +2411,17 @@ int doit(SSL *s_ssl, SSL *c_ssl, long count)
 
 	if (verbose)
 		print_details(c_ssl, "DONE: ");
+
+	if (verify_serverinfo() < 0)
+		{
+		ret = 1;
+		goto err;
+		}
+	if (custom_ext_error)
+		{
+		ret = 1;
+		goto err;
+		}
 	ret=0;
 err:
 	/* We have to set the BIO's to NULL otherwise they will be