[or-cvs] Load hardware acceleration options when/where available. C...

[nickm@xxxxxxxx (Nick Mathewson)]

Update of /home/or/cvsroot/tor/src/common
In directory moria:/tmp/cvs-serv22033/src/common

Modified Files:
	crypto.c crypto.h tortls.c 
Log Message:
Load hardware acceleration options when/where available.  Can anybody test this?

Index: crypto.c
===================================================================
RCS file: /home/or/cvsroot/tor/src/common/crypto.c,v
retrieving revision 1.141
retrieving revision 1.142
diff -u -d -r1.141 -r1.142
--- crypto.c	15 Jun 2005 18:34:46 -0000	1.141
+++ crypto.c	20 Jun 2005 18:56:34 -0000	1.142
@@ -22,6 +22,7 @@
 
 #include <string.h>
 
+#include <openssl/engine.h>
 #include <openssl/err.h>
 #include <openssl/rsa.h>
 #include <openssl/pem.h>
@@ -159,14 +160,46 @@
   }
 }
 
+static void
+log_engine(const char *fn, ENGINE *e)
+{
+  if (e) {
+    const char *name, *id;
+    name = ENGINE_get_name(e);
+    id = ENGINE_get_id(e);
+    log(LOG_NOTICE, "Using OpenSSL engine %s [%s] for %s",
+        name?name:"?", id?id:"?", fn);
+  } else {
+    log(LOG_INFO, "Using default implementation for %s", fn);
+  }
+}
+
 /** Initialize the crypto library.  Return 0 on success, -1 on failure.
  */
-int crypto_global_init()
+int
+crypto_global_init(int useAccel)
 {
   if (!_crypto_global_initialized) {
-      ERR_load_crypto_strings();
-      _crypto_global_initialized = 1;
-      setup_openssl_threading();
+    ERR_load_crypto_strings();
+    OpenSSL_add_all_algorithms();
+    _crypto_global_initialized = 1;
+    setup_openssl_threading();
+    if (useAccel) {
+      if (useAccel < 0)
+        log_fn(LOG_WARN, "Initializing OpenSSL via tor_tls_init().");
+      log_fn(LOG_INFO, "Initializing OpenSSL engine support.");
+      ENGINE_load_builtin_engines();
+      if (!ENGINE_register_all_complete())
+        return -1;
+
+      /* XXXX make sure this isn't leaking. */
+      log_engine("RSA", ENGINE_get_default_RSA());
+      log_engine("DH", ENGINE_get_default_DH());
+      log_engine("RAND", ENGINE_get_default_RAND());
+      log_engine("SHA1", ENGINE_get_digest_engine(NID_sha1));
+      log_engine("3DES", ENGINE_get_cipher_engine(NID_des_ede3_ecb));
+      log_engine("AES", ENGINE_get_cipher_engine(NID_aes_128_ecb));
+    }
   }
   return 0;
 }
@@ -176,6 +209,7 @@
 int crypto_global_cleanup()
 {
   ERR_free_strings();
+  ENGINE_cleanup();
 #ifdef TOR_IS_MULTITHREADED
   if (_n_openssl_mutexes) {
     int n = _n_openssl_mutexes;

Index: crypto.h
===================================================================
RCS file: /home/or/cvsroot/tor/src/common/crypto.h,v
retrieving revision 1.64
retrieving revision 1.65
diff -u -d -r1.64 -r1.65
--- crypto.h	11 Jun 2005 05:31:15 -0000	1.64
+++ crypto.h	20 Jun 2005 18:56:34 -0000	1.65
@@ -48,7 +48,7 @@
 typedef struct crypto_dh_env_t crypto_dh_env_t;
 
 /* global state */
-int crypto_global_init(void);
+int crypto_global_init(int hardwareAccel);
 int crypto_global_cleanup(void);
 
 /* environment setup */

Index: tortls.c
===================================================================
RCS file: /home/or/cvsroot/tor/src/common/tortls.c,v
retrieving revision 1.97
retrieving revision 1.98
diff -u -d -r1.97 -r1.98
--- tortls.c	11 Jun 2005 05:31:15 -0000	1.97
+++ tortls.c	20 Jun 2005 18:56:34 -0000	1.98
@@ -148,12 +148,11 @@
 /** Initialize OpenSSL, unless it has already been initialized.
  */
 static void
-tor_tls_init(void) {
+tor_tls_init() {
   if (!tls_library_is_initialized) {
     SSL_library_init();
     SSL_load_error_strings();
-    crypto_global_init();
-    OpenSSL_add_all_algorithms();
+    crypto_global_init(-1);
     tls_library_is_initialized = 1;
   }
 }