Cleanse KDF error files

[openssl.git] / crypto / trace.c

diff --git a/crypto/trace.c b/crypto/trace.c
old mode 100644 (file)
new mode 100755 (executable)
index 2319f5f..cc99fff
--- a/crypto/trace.c
+++ b/crypto/trace.c
@@ -10,6 +10,7 @@
 #include <stdio.h>
 #include <string.h>
 
+#include "internal/thread_once.h"
 #include <openssl/bio.h>
 #include <openssl/crypto.h>
 #include <openssl/trace.h>
@@ -65,7 +66,7 @@ static int trace_write(BIO *channel,
                        const char *buf, size_t num, size_t *written)
 {
     struct trace_data_st *ctx = BIO_get_data(channel);
-    size_t cnt = ctx->callback(buf, num, ctx->category, OSSL_TRACE_CTRL_DURING,
+    size_t cnt = ctx->callback(buf, num, ctx->category, OSSL_TRACE_CTRL_WRITE,
                                ctx->data);
 
     *written = cnt;
@@ -119,12 +120,12 @@ struct trace_category_st {
 #define TRACE_CATEGORY_(name)       { #name, OSSL_TRACE_CATEGORY_##name }
 
 static const struct trace_category_st trace_categories[] = {
-    TRACE_CATEGORY_(ANY),
+    TRACE_CATEGORY_(ALL),
     TRACE_CATEGORY_(TRACE),
     TRACE_CATEGORY_(INIT),
     TRACE_CATEGORY_(TLS),
     TRACE_CATEGORY_(TLS_CIPHER),
-    TRACE_CATEGORY_(ENGINE_CONF),
+    TRACE_CATEGORY_(CONF),
     TRACE_CATEGORY_(ENGINE_TABLE),
     TRACE_CATEGORY_(ENGINE_REF_COUNT),
     TRACE_CATEGORY_(PKCS5V2),
@@ -158,7 +159,7 @@ int OSSL_trace_get_category_num(const char *name)
 
 /* We use one trace channel for each trace category */
 static struct {
-    enum { t_channel, t_callback } type;
+    enum { SIMPLE_CHANNEL, CALLBACK_CHANNEL } type;
     BIO *bio;
     char *prefix;
     char *suffix;
@@ -218,14 +219,29 @@ static int trace_detach_cb(int category, int type, const void *data)
     return 1;
 }
 
-static int set_trace_data(int category, BIO **channel,
+static int do_ossl_trace_init(void);
+static CRYPTO_ONCE trace_inited = CRYPTO_ONCE_STATIC_INIT;
+DEFINE_RUN_ONCE_STATIC(ossl_trace_init)
+{
+    return do_ossl_trace_init();
+}
+
+static int set_trace_data(int category, int type, BIO **channel,
                           const char **prefix, const char **suffix,
                           int (*attach_cb)(int, int, const void *),
                           int (*detach_cb)(int, int, const void *))
 {
-    BIO *curr_channel = trace_channels[category].bio;
-    char *curr_prefix = trace_channels[category].prefix;
-    char *curr_suffix = trace_channels[category].suffix;
+    BIO *curr_channel = NULL;
+    char *curr_prefix = NULL;
+    char *curr_suffix = NULL;
+
+    /* Ensure do_ossl_trace_init() is called once */
+    if (!RUN_ONCE(&trace_inited, ossl_trace_init))
+        return 0;
+
+    curr_channel = trace_channels[category].bio;
+    curr_prefix = trace_channels[category].prefix;
+    curr_suffix = trace_channels[category].suffix;
 
     /* Make sure to run the detach callback first on all data */
     if (prefix != NULL && curr_prefix != NULL) {
@@ -253,11 +269,13 @@ static int set_trace_data(int category, BIO **channel,
 
     if (channel != NULL && curr_channel != NULL) {
         BIO_free(curr_channel);
+        trace_channels[category].type = 0;
         trace_channels[category].bio = NULL;
     }
 
     /* Before running callbacks are done, set new data where appropriate */
     if (channel != NULL && *channel != NULL) {
+        trace_channels[category].type = type;
         trace_channels[category].bio = *channel;
     }
 
@@ -288,19 +306,15 @@ static int set_trace_data(int category, BIO **channel,
 
     return 1;
 }
-#endif
 
-int ossl_trace_init(void)
+static int do_ossl_trace_init(void)
 {
-#ifndef OPENSSL_NO_TRACE
     trace_lock = CRYPTO_THREAD_lock_new();
-    if (trace_lock == NULL)
-        return 0;
-#endif
-
-    return 1;
+    return trace_lock != NULL;
 }
 
+#endif
+
 void ossl_trace_cleanup(void)
 {
 #ifndef OPENSSL_NO_TRACE
@@ -313,10 +327,11 @@ void ossl_trace_cleanup(void)
         /* We force the TRACE category to be treated last */
         if (category == OSSL_TRACE_CATEGORY_TRACE)
             continue;
-        set_trace_data(category, &channel, &prefix, &suffix,
+        set_trace_data(category, 0, &channel, &prefix, &suffix,
                        trace_attach_cb, trace_detach_cb);
     }
-    set_trace_data(OSSL_TRACE_CATEGORY_TRACE, &channel, &prefix, &suffix,
+    set_trace_data(OSSL_TRACE_CATEGORY_TRACE, 0, &channel,
+                   &prefix, &suffix,
                    trace_attach_cb, trace_detach_cb);
     CRYPTO_THREAD_lock_free(trace_lock);
 #endif
@@ -325,14 +340,11 @@ void ossl_trace_cleanup(void)
 int OSSL_trace_set_channel(int category, BIO *channel)
 {
 #ifndef OPENSSL_NO_TRACE
-    if (category < 0 || category >= OSSL_TRACE_CATEGORY_NUM
-        || !set_trace_data(category, &channel, NULL, NULL,
-                           trace_attach_cb, trace_detach_cb))
-        return 0;
-
-    trace_channels[category].type = t_channel;
+    if (category >= 0 && category < OSSL_TRACE_CATEGORY_NUM)
+        return set_trace_data(category, SIMPLE_CHANNEL, &channel, NULL, NULL,
+                              trace_attach_cb, trace_detach_cb);
 #endif
-    return 1;
+    return 0;
 }
 
 #ifndef OPENSSL_NO_TRACE
@@ -366,7 +378,7 @@ int OSSL_trace_set_callback(int category, OSSL_trace_cb callback, void *data)
     struct trace_data_st *trace_data = NULL;
 
     if (category < 0 || category >= OSSL_TRACE_CATEGORY_NUM)
-        goto err;
+        return 0;
 
     if (callback != NULL) {
         if ((channel = BIO_new(&trace_method)) == NULL
@@ -381,46 +393,38 @@ int OSSL_trace_set_callback(int category, OSSL_trace_cb callback, void *data)
         BIO_set_data(channel, trace_data);
     }
 
-    if (!set_trace_data(category, &channel, NULL, NULL,
+    if (!set_trace_data(category, CALLBACK_CHANNEL, &channel, NULL, NULL,
                         trace_attach_w_callback_cb, trace_detach_cb))
         goto err;
 
-    trace_channels[category].type = t_callback;
-    goto done;
+    return 1;
 
  err:
     BIO_free(channel);
     OPENSSL_free(trace_data);
-    return 0;
- done:
 #endif
-    return 1;
+
+    return 0;
 }
 
 int OSSL_trace_set_prefix(int category, const char *prefix)
 {
-    int rv = 1;
-
 #ifndef OPENSSL_NO_TRACE
-    if (category >= 0 || category < OSSL_TRACE_CATEGORY_NUM)
-        return set_trace_data(category, NULL, &prefix, NULL,
+    if (category >= 0 && category < OSSL_TRACE_CATEGORY_NUM)
+        return set_trace_data(category, 0, NULL, &prefix, NULL,
                               trace_attach_cb, trace_detach_cb);
-    rv = 0;
 #endif
-    return rv;
+    return 0;
 }
 
 int OSSL_trace_set_suffix(int category, const char *suffix)
 {
-    int rv = 1;
-
 #ifndef OPENSSL_NO_TRACE
-    if (category >= 0 || category < OSSL_TRACE_CATEGORY_NUM)
-        return set_trace_data(category, NULL, NULL, &suffix,
+    if (category >= 0 && category < OSSL_TRACE_CATEGORY_NUM)
+        return set_trace_data(category, 0, NULL, NULL, &suffix,
                               trace_attach_cb, trace_detach_cb);
-    rv = 0;
 #endif
-    return rv;
+    return 0;
 }
 
 #ifndef OPENSSL_NO_TRACE
@@ -430,7 +434,7 @@ static int ossl_trace_get_category(int category)
         return -1;
     if (trace_channels[category].bio != NULL)
         return category;
-    return OSSL_TRACE_CATEGORY_ANY;
+    return OSSL_TRACE_CATEGORY_ALL;
 }
 #endif
 
@@ -439,7 +443,8 @@ int OSSL_trace_enabled(int category)
     int ret = 0;
 #ifndef OPENSSL_NO_TRACE
     category = ossl_trace_get_category(category);
-    ret = trace_channels[category].bio != NULL;
+    if (category >= 0)
+        ret = trace_channels[category].bio != NULL;
 #endif
     return ret;
 }
@@ -451,6 +456,9 @@ BIO *OSSL_trace_begin(int category)
     char *prefix = NULL;
 
     category = ossl_trace_get_category(category);
+    if (category < 0)
+        return NULL;
+
     channel = trace_channels[category].bio;
     prefix = trace_channels[category].prefix;
 
@@ -458,13 +466,13 @@ BIO *OSSL_trace_begin(int category)
         CRYPTO_THREAD_write_lock(trace_lock);
         current_channel = channel;
         switch (trace_channels[category].type) {
-        case t_channel:
+        case SIMPLE_CHANNEL:
             if (prefix != NULL) {
                 (void)BIO_puts(channel, prefix);
                 (void)BIO_puts(channel, "\n");
             }
             break;
-        case t_callback:
+        case CALLBACK_CHANNEL:
             (void)BIO_ctrl(channel, OSSL_TRACE_CTRL_BEGIN,
                            prefix == NULL ? 0 : strlen(prefix), prefix);
             break;
@@ -485,13 +493,13 @@ void OSSL_trace_end(int category, BIO * channel)
         && ossl_assert(channel == current_channel)) {
         (void)BIO_flush(channel);
         switch (trace_channels[category].type) {
-        case t_channel:
+        case SIMPLE_CHANNEL:
             if (suffix != NULL) {
                 (void)BIO_puts(channel, suffix);
                 (void)BIO_puts(channel, "\n");
             }
             break;
-        case t_callback:
+        case CALLBACK_CHANNEL:
             (void)BIO_ctrl(channel, OSSL_TRACE_CTRL_END,
                            suffix == NULL ? 0 : strlen(suffix), suffix);
             break;