Fix manpage problems

[openssl.git] / crypto / init.c

diff --git a/crypto/init.c b/crypto/init.c
index 1b94d07e0465a3216dfcf67b0d796ba32ca8545f..2c8b48ff5b4f88e49f09d1941209792c088a3c63 100644 (file)
--- a/crypto/init.c
+++ b/crypto/init.c
@@ -24,6 +24,7 @@
 #include <stdlib.h>
 #include <assert.h>
 #include "internal/thread_once.h"
+#include "internal/dso_conf.h"
 #include "internal/dso.h"
 #include "internal/store.h"
 
@@ -80,22 +81,36 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_base)
      * We use a dummy thread local key here. We use the destructor to detect
      * when the thread is going to stop (where that feature is available)
      */
-    CRYPTO_THREAD_init_local(&threadstopkey, ossl_init_thread_stop_wrap);
+    if (!CRYPTO_THREAD_init_local(&threadstopkey, ossl_init_thread_stop_wrap))
+        return 0;
+    if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL)
+        goto err;
 #ifndef OPENSSL_SYS_UEFI
-    atexit(OPENSSL_cleanup);
+    if (atexit(OPENSSL_cleanup) != 0)
+        goto err;
 #endif
-    if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL)
-        return 0;
     OPENSSL_cpuid_setup();
 
-    /*
-     * BIG FAT WARNING!
-     * Everything needed to be initialized in this function before threads
-     * come along MUST happen before base_inited is set to 1, or we will
-     * see race conditions.
-     */
     base_inited = 1;
+    return 1;
+
+err:
+#ifdef OPENSSL_INIT_DEBUG
+    fprintf(stderr, "OPENSSL_INIT: ossl_init_base not ok!\n");
+#endif
+    CRYPTO_THREAD_lock_free(init_lock);
+    init_lock = NULL;
 
+    CRYPTO_THREAD_cleanup_local(&threadstopkey);
+    return 0;
+}
+
+static CRYPTO_ONCE load_crypto_nodelete = CRYPTO_ONCE_STATIC_INIT;
+DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_nodelete)
+{
+#ifdef OPENSSL_INIT_DEBUG
+    fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_nodelete()\n");
+#endif
 #if !defined(OPENSSL_NO_DSO) && !defined(OPENSSL_USE_NODELETE)
 # ifdef DSO_WIN32
     {
@@ -107,6 +122,10 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_base)
                                 | GET_MODULE_HANDLE_EX_FLAG_PIN,
                                 (void *)&base_inited, &handle);
 
+#  ifdef OPENSSL_INIT_DEBUG
+        fprintf(stderr, "OPENSSL_INIT: obtained DSO reference? %s\n",
+                (ret == TRUE ? "No!" : "Yes."));
+#  endif
         return (ret == TRUE) ? 1 : 0;
     }
 # else
@@ -115,12 +134,24 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_base)
      * to remain loaded until the atexit() handler is run at process exit.
      */
     {
-        DSO *dso = NULL;
+        DSO *dso;
+        void *err;
+
+        if (!err_shelve_state(&err))
+            return 0;
 
-        ERR_set_mark();
         dso = DSO_dsobyaddr(&base_inited, DSO_FLAG_NO_UNLOAD_ON_FREE);
+#  ifdef OPENSSL_INIT_DEBUG
+        fprintf(stderr, "OPENSSL_INIT: obtained DSO reference? %s\n",
+                (dso == NULL ? "No!" : "Yes."));
+        /*
+         * In case of No!, it is uncertain our exit()-handlers can still be
+         * called. After dlclose() the whole library might have been unloaded
+         * already.
+         */
+#  endif
         DSO_free(dso);
-        ERR_pop_to_mark();
+        err_unshelve_state(err);
     }
 # endif
 #endif
@@ -339,9 +370,9 @@ static void ossl_init_thread_stop(struct thread_local_inits_st *locals)
     if (locals->async) {
 #ifdef OPENSSL_INIT_DEBUG
         fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
-                        "ASYNC_cleanup_thread()\n");
+                        "async_delete_thread_state()\n");
 #endif
-        ASYNC_cleanup_thread();
+        async_delete_thread_state();
     }
 
     if (locals->err_state) {
@@ -352,6 +383,14 @@ static void ossl_init_thread_stop(struct thread_local_inits_st *locals)
         err_delete_thread_state();
     }
 
+    if (locals->rand) {
+#ifdef OPENSSL_INIT_DEBUG
+        fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
+                        "drbg_delete_thread_state()\n");
+#endif
+        drbg_delete_thread_state();
+    }
+
     OPENSSL_free(locals);
 }
 
@@ -389,6 +428,14 @@ int ossl_init_thread_start(uint64_t opts)
         locals->err_state = 1;
     }
 
+    if (opts & OPENSSL_INIT_THREAD_RAND) {
+#ifdef OPENSSL_INIT_DEBUG
+        fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
+                        "marking thread for rand\n");
+#endif
+        locals->rand = 1;
+    }
+
     return 1;
 }
 
@@ -502,6 +549,8 @@ void OPENSSL_cleanup(void)
     obj_cleanup_int();
     err_cleanup();
 
+    CRYPTO_secure_malloc_done();
+
     base_inited = 0;
 }
 
@@ -512,22 +561,18 @@ void OPENSSL_cleanup(void)
  */
 int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
 {
-    static int stoperrset = 0;
-
     if (stopped) {
-        if (!stoperrset) {
-            /*
-             * We only ever set this once to avoid getting into an infinite
-             * loop where the error system keeps trying to init and fails so
-             * sets an error etc
-             */
-            stoperrset = 1;
+        if (!(opts & OPENSSL_INIT_BASE_ONLY))
             CRYPTOerr(CRYPTO_F_OPENSSL_INIT_CRYPTO, ERR_R_INIT_FAIL);
-        }
         return 0;
     }
 
-    if (!base_inited && !RUN_ONCE(&base, ossl_init_base))
+    if (!RUN_ONCE(&base, ossl_init_base))
+        return 0;
+
+    if (!(opts & OPENSSL_INIT_BASE_ONLY)
+            && !RUN_ONCE(&load_crypto_nodelete,
+                         ossl_init_load_crypto_nodelete))
         return 0;
 
     if ((opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS)
@@ -667,6 +712,12 @@ int OPENSSL_atexit(void (*handler)(void))
 
             ERR_set_mark();
             dso = DSO_dsobyaddr(handlersym.sym, DSO_FLAG_NO_UNLOAD_ON_FREE);
+#  ifdef OPENSSL_INIT_DEBUG
+            fprintf(stderr,
+                    "OPENSSL_INIT: OPENSSL_atexit: obtained DSO reference? %s\n",
+                    (dso == NULL ? "No!" : "Yes."));
+            /* See same code above in ossl_init_base() for an explanation. */
+#  endif
             DSO_free(dso);
             ERR_pop_to_mark();
         }
@@ -674,9 +725,10 @@ int OPENSSL_atexit(void (*handler)(void))
     }
 #endif
 
-    newhand = OPENSSL_malloc(sizeof(*newhand));
-    if (newhand == NULL)
+    if ((newhand = OPENSSL_malloc(sizeof(*newhand))) == NULL) {
+        CRYPTOerr(CRYPTO_F_OPENSSL_ATEXIT, ERR_R_MALLOC_FAILURE);
         return 0;
+    }
 
     newhand->handler = handler;
     newhand->next = stop_handlers;