Add support for PolarSSL 1.1.1
[umurmur.git] / src / ssl.c
index 6ed9aea15df1708fd46da57b73dc640eb478f354..1f2ef6a01deff74fee8871670a9b45384fc0c69d 100644 (file)
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -46,8 +46,6 @@
 #include <polarssl/ssl.h>
 #include <polarssl/net.h>
 
-#define CA_CRT_FILENAME "ca.crt"
-
 int ciphers[] =
 {
     SSL_EDH_RSA_AES_256_SHA,
@@ -69,7 +67,7 @@ bool_t builtInTestCertificate;
 havege_state hs; /* exported to crypt.c */
 
 /* DH prime */
-const char *my_dhm_P =
+char *my_dhm_P =
        "9CE85640903BF123906947FEDE767261" \
        "D9B4A973EB8F7D984A8C656E2BCC161C" \
        "183D4CA471BA78225F940F16D1D99CA3" \
@@ -77,54 +75,14 @@ const char *my_dhm_P =
        "44FF6AB553EC7073AD0CB608F2A3B480" \
        "19E6C02BCED40BD30E91BB2469089670" \
        "DEF409C08E8AC24D1732A6128D2220DC53";
-const char *my_dhm_G = "4";
-
-const char *test_key =
-       "-----BEGIN RSA PRIVATE KEY-----\r\n"
-       "MIICXAIBAAKBgQC/zZ5p/st9JUgoFIuNCwyYJhKhnqKlAk36RJJAXhJ/3FZCThQK\r\n"
-       "J0jxMCjnQb9envZPIKrAfyDtlEGKU8OI2HvDsFL7Y2fNjew0R9DoUyzPRVBInfW9\r\n"
-       "JP03aiOldpooTjXBrzoZV+DGqRYJE/IRJEyXir5NEJu624bMJm0XDVkxiwIDAQAB\r\n"
-       "AoGAPcFJiR01jYSsd+Mtj2sIUhCoHQuDmJdmXfcoE7t2P17FEzIqd55weN+lu9fK\r\n"
-       "cv/BlHaTI8mK45PBinUv1ubE6gzzyLtNgBW7ko8i23YQNMS4+8ApZZoCFsVbN533\r\n"
-       "/mFYcOmWpdgIsAOyi3gAyO5OyGA71a3gkNX+MDYc7PgbTkkCQQDq1NN/j6xVw4qc\r\n"
-       "3qunsMOVJxln7Gkgt0fOrCV0WltJNkKYiARwtpvB/SHIj6nHhun+J/ee/v+QjAL4\r\n"
-       "aUwC8OmnAkEA0RfWWVQ2Yxk9QjRcqcpDddtc+9xxM6Dt+edGDSYKRUB/S2cl/Sdg\r\n"
-       "abFdrFEnFdO03VknCrqUgweegeUJhU1tfQJBAKLFFjxK59cijMejCDRZr5eI3HFO\r\n"
-       "Sqgkoh8871Ew+ClM9OgpD3rY+CmEPZB5E+N7PmGublLEyXv1sHFi+w7m0e0CQDnH\r\n"
-       "eoYIzVapHNJ0ob6Rk/63dYRrsCRyLhDGpgbwIhps7kAp6sd/4BaU2qvJaSGQ9QPN\r\n"
-       "pQpD8NIcguKmJfFeKgkCQBABatS74xI2UAW/IIbRBg8a8z4v5JxEnQwp0EtmON2I\r\n"
-       "+AVBenUVFjpdjaaQ2/2IEgEwnzRfbERQfUlAkjczRaM=\r\n"
-       "-----END RSA PRIVATE KEY-----\r\n";
-
-const char *test_cert =
-       "-----BEGIN CERTIFICATE-----\r\n"
-       "MIICfDCCAeWgAwIBAgIJANEN9Jb9sp0oMA0GCSqGSIb3DQEBBQUAMFcxCzAJBgNV\r\n"
-       "BAYTAlNFMRMwEQYDVQQHDApHb3RoZW5idXJnMRAwDgYDVQQKDAd1TXVybXVyMSEw\r\n"
-       "HwYDVQQDDBh1TXVybXVyIHRlc3QgY2VydGlmaWNhdGUwHhcNMTEwMzIyMjIxMTEy\r\n"
-       "WhcNMjEwMzE5MjIxMTEyWjBXMQswCQYDVQQGEwJTRTETMBEGA1UEBwwKR290aGVu\r\n"
-       "YnVyZzEQMA4GA1UECgwHdU11cm11cjEhMB8GA1UEAwwYdU11cm11ciB0ZXN0IGNl\r\n"
-       "cnRpZmljYXRlMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/zZ5p/st9JUgo\r\n"
-       "FIuNCwyYJhKhnqKlAk36RJJAXhJ/3FZCThQKJ0jxMCjnQb9envZPIKrAfyDtlEGK\r\n"
-       "U8OI2HvDsFL7Y2fNjew0R9DoUyzPRVBInfW9JP03aiOldpooTjXBrzoZV+DGqRYJ\r\n"
-       "E/IRJEyXir5NEJu624bMJm0XDVkxiwIDAQABo1AwTjAdBgNVHQ4EFgQUyI0/J6gS\r\n"
-       "G7vEZl1nKq9rAYAg/TMwHwYDVR0jBBgwFoAUyI0/J6gSG7vEZl1nKq9rAYAg/TMw\r\n"
-       "DAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQUFAAOBgQCGL3T4a7g+MUtcjIq2XLON\r\n"
-       "cN/oPgPpMNcSPj7zQF1NVzjeQagvKIe3mL5sNIYuoIQm1Xm7aH2ueruhH0wkSOf0\r\n"
-       "+7U/g7r70U1CFWzfgwzz3EWRq3hUQmZ9/Xy9V2P/iRrFNyAKE8MneuVv3aAIN6/W\r\n"
-       "rWVxhCquqhFM3yIGe0f6hw==\r\n"
-       "-----END CERTIFICATE-----\r\n";
-
+char *my_dhm_G = "4";
 
 static void initTestCert()
 {
        int rc;
        builtInTestCertificate = true;
-       rc = x509parse_crt(&certificate, (unsigned char *)test_cert,
-                                          strlen(test_cert));  
-       if (rc != 0)
-               Log_fatal("Could not parse built-in test certificate");
-       rc = x509parse_crt(&certificate, (unsigned char *)test_cert,
-                                          strlen(test_cert));  
+       rc = x509parse_crt(&certificate, (unsigned char *)test_srv_crt,
+                                          strlen(test_srv_crt));       
        if (rc != 0)
                Log_fatal("Could not parse built-in test certificate");
 }
@@ -133,13 +91,14 @@ static void initTestKey()
 {
        int rc;
        
-       rc = x509parse_key(&key, (unsigned char *)test_key,
-                                          strlen(test_key), NULL, 0);
+       rc = x509parse_key(&key, (unsigned char *)test_srv_key,
+                                          strlen(test_srv_key), NULL, 0);
        if (rc != 0)
                Log_fatal("Could not parse built-in test RSA key");
 }
 
 /*
+ * How to generate a self-signed cert with openssl:
  * openssl genrsa 1024 > host.key
  * openssl req -new -x509 -nodes -sha1 -days 365 -key host.key > host.cert
  */
@@ -147,7 +106,6 @@ static void initCert()
 {
        int rc;
        char *crtfile = (char *)getStrConf(CERTIFICATE);
-       char *ca_file, *p;
        
        if (crtfile == NULL) {
                Log_warn("No certificate file specified");
@@ -160,31 +118,6 @@ static void initCert()
                initTestCert();
                return;
        }
-       
-       /* Look for CA certificate file in same dir */
-       ca_file = malloc(strlen(crtfile) + strlen(CA_CRT_FILENAME) + 1);
-       strcpy(ca_file, crtfile);
-       p = strrchr(ca_file, '/');
-       if (p != NULL)
-               strcpy(p + 1, CA_CRT_FILENAME);
-       else
-               strcpy(ca_file, CA_CRT_FILENAME);
-       
-       rc = x509parse_crtfile(&certificate, ca_file);
-       if (rc != 0) { /* No CA certifiacte found. Assume self-signed. */
-               Log_info("CA certificate file %s not found. Assuming self-signed certificate.", ca_file);
-       }
-       
-       /*
-        * PolarSSL 0.11 - 0.12,1 has a bug; it ignores the last certificate in the chain.
-        * Read the certificate again so that it gets last in chain. Later releases like 0.14.0 works
-        * fine with the extra certificate, so I don't see any harm in doing so.
-        */
-       rc = x509parse_crtfile(&certificate, crtfile);
-       if (rc != 0)
-               Log_fatal("Could not read certificate file %s", crtfile);
-       
-       free(ca_file);
 }
 
 static void initKey()
@@ -208,6 +141,8 @@ static void pssl_debug(void *ctx, int level, const char *str)
 
 void SSLi_init(void)
 {
+       char verstring[12];
+       
        initCert();
        if (builtInTestCertificate) {
                Log_warn("*** Using built-in test certificate and RSA key ***");
@@ -217,7 +152,13 @@ void SSLi_init(void)
        else
                initKey();
     havege_init(&hs);
+    
+#ifdef POLARSSL_VERSION_MAJOR
+    version_get_string(verstring);
+    Log_info("PolarSSL library version %s initialized", verstring);
+#else
        Log_info("PolarSSL library initialized");
+#endif
 }
 
 void SSLi_deinit(void)
@@ -244,18 +185,21 @@ SSL_handle_t *SSLi_newconnection(int *fd, bool_t *SSLready)
                Log_fatal("Failed to initalize: %d", rc);
        
        ssl_set_endpoint(ssl, SSL_IS_SERVER);   
-    ssl_set_authmode(ssl, SSL_VERIFY_OPTIONAL);
+       ssl_set_authmode(ssl, SSL_VERIFY_NONE);
 
-    ssl_set_rng(ssl, havege_rand, &hs);
-    ssl_set_dbg(ssl, pssl_debug, NULL);
-    ssl_set_bio(ssl, net_recv, fd, net_send, fd);
+       ssl_set_rng(ssl, HAVEGE_RAND, &hs);
+       ssl_set_dbg(ssl, pssl_debug, NULL);
+       ssl_set_bio(ssl, net_recv, fd, net_send, fd);
 
-    ssl_set_ciphers(ssl, ciphers);
+#ifdef POLARSSL_API_V1
+       ssl_set_ciphersuites(ssl, ciphers);
+#else
+       ssl_set_ciphers(ssl, ciphers);
+#endif
     ssl_set_session(ssl, 0, 0, ssn);
 
-    ssl_set_ca_chain(ssl, certificate.next, NULL, NULL);
-    ssl_set_own_cert(ssl, &certificate, &key);
-    ssl_set_dh_param(ssl, my_dhm_P, my_dhm_G);
+       ssl_set_own_cert(ssl, &certificate, &key);
+       ssl_set_dh_param(ssl, my_dhm_P, my_dhm_G);
 
        return ssl;
 }
@@ -266,7 +210,11 @@ int SSLi_nonblockaccept(SSL_handle_t *ssl, bool_t *SSLready)
        
        rc = ssl_handshake(ssl);
        if (rc != 0) {
+#ifdef POLARSSL_API_V1         
+               if (rc == POLARSSL_ERR_NET_WANT_READ || rc == POLARSSL_ERR_NET_WANT_WRITE) {
+#else
                if (rc == POLARSSL_ERR_NET_TRY_AGAIN) {
+#endif
                        return 0;
                } else {
                        Log_warn("SSL handshake failed: %d", rc);
@@ -280,8 +228,13 @@ int SSLi_nonblockaccept(SSL_handle_t *ssl, bool_t *SSLready)
 int SSLi_read(SSL_handle_t *ssl, uint8_t *buf, int len)
 {
        int rc;
+
        rc = ssl_read(ssl, buf, len);
+#ifdef POLARSSL_API_V1         
+       if (rc == POLARSSL_ERR_NET_WANT_READ)
+#else
        if (rc == POLARSSL_ERR_NET_TRY_AGAIN)
+#endif
                return SSLI_ERROR_WANT_READ;
        return rc;
 }
@@ -289,8 +242,13 @@ int SSLi_read(SSL_handle_t *ssl, uint8_t *buf, int len)
 int SSLi_write(SSL_handle_t *ssl, uint8_t *buf, int len)
 {
        int rc;
+       
        rc = ssl_write(ssl, buf, len);
+#ifdef POLARSSL_API_V1         
+       if (rc == POLARSSL_ERR_NET_WANT_WRITE)
+#else
        if (rc == POLARSSL_ERR_NET_TRY_AGAIN)
+#endif
                return SSLI_ERROR_WANT_WRITE;
        return rc;
 }