[openssl-commits] [openssl] master update

Rich Salz rsalz at openssl.org
Thu Aug 31 23:42:05 UTC 2017


The branch master has been updated
       via  75551e07bd2339dfea06ef1d31d69929e13a4495 (commit)
       via  ed6b2c7938ec6f07b15745d4183afc276e74c6dd (commit)
      from  3907872f7234744b478499f42a8d151ca89be64d (commit)


- Log -----------------------------------------------------------------
commit 75551e07bd2339dfea06ef1d31d69929e13a4495
Author: Rich Salz <rsalz at openssl.org>
Date:   Wed Aug 30 16:40:52 2017 -0400

    Address feedback
    
    Reviewed-by: Paul Dale <paul.dale at oracle.com>
    (Merged from https://github.com/openssl/openssl/pull/4294)

commit ed6b2c7938ec6f07b15745d4183afc276e74c6dd
Author: Rich Salz <rsalz at openssl.org>
Date:   Tue Aug 29 15:24:17 2017 -0400

    Add CRYPTO_thread_glock_new
    
    Reviewed-by: Paul Dale <paul.dale at oracle.com>
    (Merged from https://github.com/openssl/openssl/pull/4294)

-----------------------------------------------------------------------

Summary of changes:
 crypto/bio/b_addr.c           |  2 +-
 crypto/bio/bio_meth.c         |  2 +-
 crypto/engine/eng_lib.c       |  2 +-
 crypto/err/err.c              |  2 +-
 crypto/ex_data.c              |  2 +-
 crypto/init.c                 | 82 ++++++++++++++++++++++++++++++++++++++++++-
 crypto/mem_dbg.c              |  4 +--
 crypto/mem_sec.c              |  2 +-
 crypto/objects/o_names.c      |  2 +-
 crypto/rand/drbg_lib.c        |  8 ++---
 crypto/rand/rand_lib.c        |  6 ++--
 crypto/store/store_register.c |  2 +-
 include/openssl/crypto.h      |  1 +
 util/libcrypto.num            |  1 +
 14 files changed, 100 insertions(+), 18 deletions(-)

diff --git a/crypto/bio/b_addr.c b/crypto/bio/b_addr.c
index ba26c91..47e4fc2 100644
--- a/crypto/bio/b_addr.c
+++ b/crypto/bio/b_addr.c
@@ -603,7 +603,7 @@ static int addrinfo_wrap(int family, int socktype,
 DEFINE_RUN_ONCE_STATIC(do_bio_lookup_init)
 {
     OPENSSL_init_crypto(0, NULL);
-    bio_lookup_lock = CRYPTO_THREAD_lock_new();
+    bio_lookup_lock = CRYPTO_THREAD_glock_new("bio_lookup");
     return bio_lookup_lock != NULL;
 }
 
diff --git a/crypto/bio/bio_meth.c b/crypto/bio/bio_meth.c
index be6420c..99e81c7 100644
--- a/crypto/bio/bio_meth.c
+++ b/crypto/bio/bio_meth.c
@@ -15,7 +15,7 @@ static CRYPTO_ONCE bio_type_init = CRYPTO_ONCE_STATIC_INIT;
 
 DEFINE_RUN_ONCE_STATIC(do_bio_type_init)
 {
-    bio_type_lock = CRYPTO_THREAD_lock_new();
+    bio_type_lock = CRYPTO_THREAD_glock_new("bio_type");
     return bio_type_lock != NULL;
 }
 
diff --git a/crypto/engine/eng_lib.c b/crypto/engine/eng_lib.c
index c060a5d..8e2ff9d 100644
--- a/crypto/engine/eng_lib.c
+++ b/crypto/engine/eng_lib.c
@@ -21,7 +21,7 @@ CRYPTO_ONCE engine_lock_init = CRYPTO_ONCE_STATIC_INIT;
 DEFINE_RUN_ONCE(do_engine_lock_init)
 {
     OPENSSL_init_crypto(0, NULL);
-    global_engine_lock = CRYPTO_THREAD_lock_new();
+    global_engine_lock = CRYPTO_THREAD_glock_new("global_engine");
     return global_engine_lock != NULL;
 }
 
diff --git a/crypto/err/err.c b/crypto/err/err.c
index ab08435..5e3474f 100644
--- a/crypto/err/err.c
+++ b/crypto/err/err.c
@@ -267,7 +267,7 @@ static void ERR_STATE_free(ERR_STATE *s)
 DEFINE_RUN_ONCE_STATIC(do_err_strings_init)
 {
     OPENSSL_init_crypto(0, NULL);
-    err_string_lock = CRYPTO_THREAD_lock_new();
+    err_string_lock = CRYPTO_THREAD_glock_new("err_string");
     int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash,
                                             err_string_data_cmp);
     return err_string_lock != NULL && int_error_hash != NULL;
diff --git a/crypto/ex_data.c b/crypto/ex_data.c
index 22c4d3d..30b16f9 100644
--- a/crypto/ex_data.c
+++ b/crypto/ex_data.c
@@ -39,7 +39,7 @@ static CRYPTO_ONCE ex_data_init = CRYPTO_ONCE_STATIC_INIT;
 DEFINE_RUN_ONCE_STATIC(do_ex_data_init)
 {
     OPENSSL_init_crypto(0, NULL);
-    ex_data_lock = CRYPTO_THREAD_lock_new();
+    ex_data_lock = CRYPTO_THREAD_glock_new("ex_data");
     return ex_data_lock != NULL;
 }
 
diff --git a/crypto/init.c b/crypto/init.c
index 074e683..3eda1c9 100644
--- a/crypto/init.c
+++ b/crypto/init.c
@@ -27,6 +27,15 @@
 #include "internal/dso.h"
 #include "internal/store.h"
 
+
+typedef struct global_lock_st {
+    CRYPTO_RWLOCK *lock;
+    const char *name;
+    struct global_lock_st *next;
+} GLOBAL_LOCK;
+
+static GLOBAL_LOCK *global_locks;
+
 static int stopped = 0;
 
 static void ossl_init_thread_stop(struct thread_local_inits_st *locals);
@@ -63,6 +72,9 @@ struct ossl_init_stop_st {
     OPENSSL_INIT_STOP *next;
 };
 
+static CRYPTO_RWLOCK *glock_lock = NULL;
+static CRYPTO_ONCE glock_once = CRYPTO_ONCE_STATIC_INIT;
+
 static OPENSSL_INIT_STOP *stop_handlers = NULL;
 static CRYPTO_RWLOCK *init_lock = NULL;
 
@@ -84,6 +96,7 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_base)
 #ifndef OPENSSL_SYS_UEFI
     atexit(OPENSSL_cleanup);
 #endif
+    /* Do not change this to glock's! */
     if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL)
         return 0;
     OPENSSL_cpuid_setup();
@@ -421,6 +434,7 @@ void OPENSSL_cleanup(void)
     stop_handlers = NULL;
 
     CRYPTO_THREAD_lock_free(init_lock);
+    init_lock = NULL;
 
     /*
      * We assume we are single-threaded for this function, i.e. no race
@@ -501,6 +515,16 @@ void OPENSSL_cleanup(void)
     obj_cleanup_int();
     err_cleanup();
 
+    /* Free list of global locks. */
+    while (global_locks != NULL) {
+        GLOBAL_LOCK *next = global_locks->next;
+
+        free(global_locks);
+        global_locks = next;
+    }
+    CRYPTO_THREAD_lock_free(glock_lock);
+    glock_lock = NULL;
+
     base_inited = 0;
 }
 
@@ -684,7 +708,55 @@ int OPENSSL_atexit(void (*handler)(void))
     return 1;
 }
 
-#ifdef OPENSSL_SYS_UNIX
+#ifndef OPENSSL_SYS_UNIX
+CRYPTO_RWLOCK *CRYPTO_THREAD_glock_new(const char *name)
+{
+    return CRYPTO_THREAD_lock_new();
+}
+
+#else
+DEFINE_RUN_ONCE_STATIC(glock_init)
+{
+    glock_lock = CRYPTO_THREAD_lock_new();
+    return glock_lock != NULL;
+}
+
+/*
+ * Create a new global lock, return NULL on error.
+ */
+CRYPTO_RWLOCK *CRYPTO_THREAD_glock_new(const char *name)
+{
+    GLOBAL_LOCK *newlock;
+
+    if (glock_lock == NULL && !RUN_ONCE(&glock_once, glock_init))
+        return NULL;
+    if ((newlock = malloc(sizeof(*newlock))) == NULL)
+        return NULL;
+    if ((newlock->lock = CRYPTO_THREAD_lock_new()) == NULL) {
+        free(newlock);
+        return NULL;
+    }
+    newlock->name = name;
+    CRYPTO_THREAD_write_lock(glock_lock);
+    newlock->next = global_locks;
+    global_locks = newlock;
+    CRYPTO_THREAD_unlock(glock_lock);
+    return newlock->lock;
+}
+
+/*
+ * Unlock all global locks.
+ */
+static void unlock_all(void)
+{
+    GLOBAL_LOCK *lp;
+
+    CRYPTO_THREAD_write_lock(glock_lock);
+    for (lp = global_locks; lp != NULL; lp = lp->next)
+        CRYPTO_THREAD_unlock(lp->lock);
+    CRYPTO_THREAD_unlock(glock_lock);
+}
+
 /*
  * The following three functions are for OpenSSL developers.  This is
  * where we set/reset state across fork (called via pthread_atfork when
@@ -698,14 +770,22 @@ int OPENSSL_atexit(void (*handler)(void))
 
 void OPENSSL_fork_prepare(void)
 {
+    GLOBAL_LOCK *lp;
+
+    CRYPTO_THREAD_write_lock(glock_lock);
+    for (lp = global_locks; lp != NULL; lp = lp->next)
+        CRYPTO_THREAD_write_lock(lp->lock);
+    CRYPTO_THREAD_unlock(glock_lock);
 }
 
 void OPENSSL_fork_parent(void)
 {
+    unlock_all();
 }
 
 void OPENSSL_fork_child(void)
 {
+    unlock_all();
     rand_fork();
 }
 #endif
diff --git a/crypto/mem_dbg.c b/crypto/mem_dbg.c
index 70b5e62..9228dce 100644
--- a/crypto/mem_dbg.c
+++ b/crypto/mem_dbg.c
@@ -90,8 +90,8 @@ static CRYPTO_THREAD_ID disabling_threadid;
 
 DEFINE_RUN_ONCE_STATIC(do_memdbg_init)
 {
-    malloc_lock = CRYPTO_THREAD_lock_new();
-    long_malloc_lock = CRYPTO_THREAD_lock_new();
+    malloc_lock = CRYPTO_THREAD_glock_new("malloc");
+    long_malloc_lock = CRYPTO_THREAD_glock_new("long_malloc");
     if (malloc_lock == NULL || long_malloc_lock == NULL
         || !CRYPTO_THREAD_init_local(&appinfokey, NULL)) {
         CRYPTO_THREAD_lock_free(malloc_lock);
diff --git a/crypto/mem_sec.c b/crypto/mem_sec.c
index f847024..ff6e657 100644
--- a/crypto/mem_sec.c
+++ b/crypto/mem_sec.c
@@ -66,7 +66,7 @@ int CRYPTO_secure_malloc_init(size_t size, int minsize)
     int ret = 0;
 
     if (!secure_mem_initialized) {
-        sec_malloc_lock = CRYPTO_THREAD_lock_new();
+        sec_malloc_lock = CRYPTO_THREAD_glock_new("sec_malloc");
         if (sec_malloc_lock == NULL)
             return 0;
         if ((ret = sh_init(size, minsize)) != 0) {
diff --git a/crypto/objects/o_names.c b/crypto/objects/o_names.c
index 7367644..d0e8e05 100644
--- a/crypto/objects/o_names.c
+++ b/crypto/objects/o_names.c
@@ -69,7 +69,7 @@ DEFINE_RUN_ONCE_STATIC(o_names_init)
 {
     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE);
     names_lh = lh_OBJ_NAME_new(obj_name_hash, obj_name_cmp);
-    obj_lock = CRYPTO_THREAD_lock_new();
+    obj_lock = CRYPTO_THREAD_glock_new("obj");
     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
     return names_lh != NULL && obj_lock != NULL;
 }
diff --git a/crypto/rand/drbg_lib.c b/crypto/rand/drbg_lib.c
index 83ddc27..b7f7e4c 100644
--- a/crypto/rand/drbg_lib.c
+++ b/crypto/rand/drbg_lib.c
@@ -337,11 +337,11 @@ void *RAND_DRBG_get_ex_data(const RAND_DRBG *drbg, int idx)
  * Creates a global DRBG with default settings.
  * Returns 1 on success, 0 on failure
  */
-static int setup_drbg(RAND_DRBG *drbg)
+static int setup_drbg(RAND_DRBG *drbg, const char *name)
 {
     int ret = 1;
 
-    drbg->lock = CRYPTO_THREAD_lock_new();
+    drbg->lock = CRYPTO_THREAD_glock_new(name);
     ret &= drbg->lock != NULL;
     drbg->size = RANDOMNESS_NEEDED;
     drbg->secure = CRYPTO_secure_malloc_initialized();
@@ -362,8 +362,8 @@ DEFINE_RUN_ONCE_STATIC(do_rand_init_drbg)
 {
     int ret = 1;
 
-    ret &= setup_drbg(&rand_drbg);
-    ret &= setup_drbg(&priv_drbg);
+    ret &= setup_drbg(&rand_drbg, "rand_drbg");
+    ret &= setup_drbg(&priv_drbg, "priv_drbg");
 
     return ret;
 }
diff --git a/crypto/rand/rand_lib.c b/crypto/rand/rand_lib.c
index a27281c..2f2ab6a 100644
--- a/crypto/rand/rand_lib.c
+++ b/crypto/rand/rand_lib.c
@@ -182,13 +182,13 @@ DEFINE_RUN_ONCE_STATIC(do_rand_init)
     int ret = 1;
 
 #ifndef OPENSSL_NO_ENGINE
-    rand_engine_lock = CRYPTO_THREAD_lock_new();
+    rand_engine_lock = CRYPTO_THREAD_glock_new("rand_engine");
     ret &= rand_engine_lock != NULL;
 #endif
-    rand_meth_lock = CRYPTO_THREAD_lock_new();
+    rand_meth_lock = CRYPTO_THREAD_glock_new("rand_meth");
     ret &= rand_meth_lock != NULL;
 
-    rand_bytes.lock = CRYPTO_THREAD_lock_new();
+    rand_bytes.lock = CRYPTO_THREAD_glock_new("rand_bytes");
     ret &= rand_bytes.lock != NULL;
     rand_bytes.curr = 0;
     rand_bytes.size = MAX_RANDOMNESS_HELD;
diff --git a/crypto/store/store_register.c b/crypto/store/store_register.c
index 85c38b8..987ca42 100644
--- a/crypto/store/store_register.c
+++ b/crypto/store/store_register.c
@@ -20,7 +20,7 @@ static CRYPTO_ONCE registry_init = CRYPTO_ONCE_STATIC_INIT;
 
 DEFINE_RUN_ONCE_STATIC(do_registry_init)
 {
-    registry_lock = CRYPTO_THREAD_lock_new();
+    registry_lock = CRYPTO_THREAD_glock_new("registry");
     return registry_lock != NULL;
 }
 
diff --git a/include/openssl/crypto.h b/include/openssl/crypto.h
index cebde97..c4a36af 100644
--- a/include/openssl/crypto.h
+++ b/include/openssl/crypto.h
@@ -68,6 +68,7 @@ typedef struct {
 typedef void CRYPTO_RWLOCK;
 
 CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void);
+CRYPTO_RWLOCK *CRYPTO_THREAD_glock_new(const char *name);
 int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock);
 int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock);
 int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock);
diff --git a/util/libcrypto.num b/util/libcrypto.num
index d955f91..8a276b9 100644
--- a/util/libcrypto.num
+++ b/util/libcrypto.num
@@ -4389,3 +4389,4 @@ EVP_aria_256_ccm                        4332	1_1_1	EXIST::FUNCTION:ARIA
 EVP_aria_128_gcm                        4333	1_1_1	EXIST::FUNCTION:ARIA
 EVP_aria_128_ccm                        4334	1_1_1	EXIST::FUNCTION:ARIA
 EVP_aria_192_gcm                        4335	1_1_1	EXIST::FUNCTION:ARIA
+CRYPTO_THREAD_glock_new                 4336	1_1_1	EXIST::FUNCTION:


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