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ae948e2a07c5ffd03dd57f98d9b64ea1168cdc99
wolfssl/wolfcrypt/src/logging.c
Juliusz Sosinowicz ae948e2a07 Pass try-ciphers 
define EVP_CIPHER_CTX_set_iv as wolfSSL_EVP_CIPHER_CTX_set_iv
add wolfSSL_GetLoggingCb functionality when compiling without enable-debug
fix initialization vector handling of all cipher modes when using our EVP layer. The IV was incorrectly handled in initialization as well as not being updated after processing
2020-02-18 21:37:06 +01:00

823 lines
22 KiB
C
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/* logging.c
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <wolfssl/wolfcrypt/settings.h>
#include <wolfssl/wolfcrypt/logging.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#if defined(OPENSSL_EXTRA) && !defined(WOLFCRYPT_ONLY)
/* avoid adding WANT_READ and WANT_WRITE to error queue */
#include <wolfssl/error-ssl.h>
#endif
#if defined(OPENSSL_EXTRA) || defined(DEBUG_WOLFSSL_VERBOSE)
static wolfSSL_Mutex debug_mutex; /* mutex for access to debug structure */
/* accessing any node from the queue should be wrapped in a lock of
* debug_mutex */
static void* wc_error_heap;
struct wc_error_queue {
void* heap; /* the heap hint used with nodes creation */
struct wc_error_queue* next;
struct wc_error_queue* prev;
char error[WOLFSSL_MAX_ERROR_SZ];
char file[WOLFSSL_MAX_ERROR_SZ];
int value;
int line;
};
volatile struct wc_error_queue* wc_errors;
static struct wc_error_queue* wc_current_node;
static struct wc_error_queue* wc_last_node;
/* pointer to last node in queue to make insertion O(1) */
#endif
#ifdef WOLFSSL_FUNC_TIME
/* WARNING: This code is only to be used for debugging performance.
* The code is not thread-safe.
* Do not use WOLFSSL_FUNC_TIME in production code.
*/
static double wc_func_start[WC_FUNC_COUNT];
static double wc_func_time[WC_FUNC_COUNT] = { 0, };
static const char* wc_func_name[WC_FUNC_COUNT] = {
"SendHelloRequest",
"DoHelloRequest",
"SendClientHello",
"DoClientHello",
"SendServerHello",
"DoServerHello",
"SendEncryptedExtensions",
"DoEncryptedExtensions",
"SendCertificateRequest",
"DoCertificateRequest",
"SendCertificate",
"DoCertificate",
"SendCertificateVerify",
"DoCertificateVerify",
"SendFinished",
"DoFinished",
"SendKeyUpdate",
"DoKeyUpdate",
"SendEarlyData",
"DoEarlyData",
"SendNewSessionTicket",
"DoNewSessionTicket",
"SendServerHelloDone",
"DoServerHelloDone",
"SendTicket",
"DoTicket",
"SendClientKeyExchange",
"DoClientKeyExchange",
"SendCertificateStatus",
"DoCertificateStatus",
"SendServerKeyExchange",
"DoServerKeyExchange",
"SendEarlyData",
"DoEarlyData",
};
#include <sys/time.h>
/* WARNING: This function is not portable. */
static WC_INLINE double current_time(int reset)
{
struct timeval tv;
gettimeofday(&tv, 0);
(void)reset;
return (double)tv.tv_sec + (double)tv.tv_usec / 1000000;
}
#endif /* WOLFSSL_FUNC_TIME */
#ifdef DEBUG_WOLFSSL
/* Set these to default values initially. */
static wolfSSL_Logging_cb log_function = NULL;
static int loggingEnabled = 0;
#if defined(WOLFSSL_APACHE_MYNEWT)
#include "log/log.h"
static struct log mynewt_log;
#endif /* WOLFSSL_APACHE_MYNEWT */
#endif /* DEBUG_WOLFSSL */
/* allow this to be set to NULL, so logs can be redirected to default output */
int wolfSSL_SetLoggingCb(wolfSSL_Logging_cb f)
{
#ifdef DEBUG_WOLFSSL
log_function = f;
return 0;
#else
(void)f;
return NOT_COMPILED_IN;
#endif
}
/* allow this to be set to NULL, so logs can be redirected to default output */
wolfSSL_Logging_cb wolfSSL_GetLoggingCb(void)
{
#ifdef DEBUG_WOLFSSL
return log_function;
#else
return NULL;
#endif
}
int wolfSSL_Debugging_ON(void)
{
#ifdef DEBUG_WOLFSSL
loggingEnabled = 1;
#if defined(WOLFSSL_APACHE_MYNEWT)
log_register("wolfcrypt", &mynewt_log, &log_console_handler, NULL, LOG_SYSLEVEL);
#endif /* WOLFSSL_APACHE_MYNEWT */
return 0;
#else
return NOT_COMPILED_IN;
#endif
}
void wolfSSL_Debugging_OFF(void)
{
#ifdef DEBUG_WOLFSSL
loggingEnabled = 0;
#endif
}
#ifdef WOLFSSL_FUNC_TIME
/* WARNING: This code is only to be used for debugging performance.
* The code is not thread-safe.
* Do not use WOLFSSL_FUNC_TIME in production code.
*/
void WOLFSSL_START(int funcNum)
{
double now = current_time(0) * 1000.0;
#ifdef WOLFSSL_FUNC_TIME_LOG
fprintf(stderr, "%17.3f: START - %s\n", now, wc_func_name[funcNum]);
#endif
wc_func_start[funcNum] = now;
}
void WOLFSSL_END(int funcNum)
{
double now = current_time(0) * 1000.0;
wc_func_time[funcNum] += now - wc_func_start[funcNum];
#ifdef WOLFSSL_FUNC_TIME_LOG
fprintf(stderr, "%17.3f: END - %s\n", now, wc_func_name[funcNum]);
#endif
}
void WOLFSSL_TIME(int count)
{
int i;
double avg, total = 0;
for (i = 0; i < WC_FUNC_COUNT; i++) {
if (wc_func_time[i] > 0) {
avg = wc_func_time[i] / count;
fprintf(stderr, "%8.3f ms: %s\n", avg, wc_func_name[i]);
total += avg;
}
}
fprintf(stderr, "%8.3f ms\n", total);
}
#endif
#ifdef DEBUG_WOLFSSL
#if defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
/* see wc_port.h for fio.h and nio.h includes */
#elif defined(WOLFSSL_SGX)
/* Declare sprintf for ocall */
int sprintf(char* buf, const char *fmt, ...);
#elif defined(WOLFSSL_DEOS)
#elif defined(MICRIUM)
#if (BSP_SER_COMM_EN == DEF_ENABLED)
#include <bsp_ser.h>
#endif
#elif defined(WOLFSSL_USER_LOG)
/* user includes their own headers */
#elif defined(WOLFSSL_ESPIDF)
#include "esp_types.h"
#include "esp_log.h"
#elif defined(WOLFSSL_TELIT_M2MB)
#include <stdio.h>
#include "m2m_log.h"
#elif defined(WOLFSSL_ANDROID_DEBUG)
#include <android/log.h>
#else
#include <stdio.h> /* for default printf stuff */
#endif
#if defined(THREADX) && !defined(THREADX_NO_DC_PRINTF)
int dc_log_printf(char*, ...);
#endif
static void wolfssl_log(const int logLevel, const char *const logMessage)
{
if (log_function)
log_function(logLevel, logMessage);
else {
#if defined(WOLFSSL_USER_LOG)
WOLFSSL_USER_LOG(logMessage);
#elif defined(WOLFSSL_LOG_PRINTF)
printf("%s\n", logMessage);
#elif defined(THREADX) && !defined(THREADX_NO_DC_PRINTF)
dc_log_printf("%s\n", logMessage);
#elif defined(WOLFSSL_DEOS)
printf("%s\r\n", logMessage);
#elif defined(MICRIUM)
BSP_Ser_Printf("%s\r\n", logMessage);
#elif defined(WOLFSSL_MDK_ARM)
fflush(stdout) ;
printf("%s\n", logMessage);
fflush(stdout) ;
#elif defined(WOLFSSL_UTASKER)
fnDebugMsg((char*)logMessage);
fnDebugMsg("\r\n");
#elif defined(MQX_USE_IO_OLD)
fprintf(_mqxio_stderr, "%s\n", logMessage);
#elif defined(WOLFSSL_APACHE_MYNEWT)
LOG_DEBUG(&mynewt_log, LOG_MODULE_DEFAULT, "%s\n", logMessage);
#elif defined(WOLFSSL_ESPIDF)
ESP_LOGI("wolfssl", "%s", logMessage);
#elif defined(WOLFSSL_ZEPHYR)
printk("%s\n", logMessage);
#elif defined(WOLFSSL_TELIT_M2MB)
M2M_LOG_INFO("%s\n", logMessage);
#elif defined(WOLFSSL_ANDROID_DEBUG)
__android_log_print(ANDROID_LOG_VERBOSE, "[wolfSSL]", "%s", logMessage);
#else
fprintf(stderr, "%s\n", logMessage);
#endif
}
}
#ifndef WOLFSSL_DEBUG_ERRORS_ONLY
void WOLFSSL_MSG(const char* msg)
{
if (loggingEnabled)
wolfssl_log(INFO_LOG , msg);
}
#ifndef LINE_LEN
#define LINE_LEN 16
#endif
void WOLFSSL_BUFFER(const byte* buffer, word32 length)
{
int i, buflen = (int)length, bufidx;
char line[(LINE_LEN * 4) + 3]; /* \t00..0F | chars...chars\0 */
if (!loggingEnabled) {
return;
}
if (!buffer) {
wolfssl_log(INFO_LOG, "\tNULL");
return;
}
while (buflen > 0) {
bufidx = 0;
XSNPRINTF(&line[bufidx], sizeof(line)-bufidx, "\t");
bufidx++;
for (i = 0; i < LINE_LEN; i++) {
if (i < buflen) {
XSNPRINTF(&line[bufidx], sizeof(line)-bufidx, "%02x ", buffer[i]);
}
else {
XSNPRINTF(&line[bufidx], sizeof(line)-bufidx, " ");
}
bufidx += 3;
}
XSNPRINTF(&line[bufidx], sizeof(line)-bufidx, "| ");
bufidx++;
for (i = 0; i < LINE_LEN; i++) {
if (i < buflen) {
XSNPRINTF(&line[bufidx], sizeof(line)-bufidx,
"%c", 31 < buffer[i] && buffer[i] < 127 ? buffer[i] : '.');
bufidx++;
}
}
wolfssl_log(INFO_LOG, line);
buffer += LINE_LEN;
buflen -= LINE_LEN;
}
}
void WOLFSSL_ENTER(const char* msg)
{
if (loggingEnabled) {
char buffer[WOLFSSL_MAX_ERROR_SZ];
XSNPRINTF(buffer, sizeof(buffer), "wolfSSL Entering %s", msg);
wolfssl_log(ENTER_LOG , buffer);
}
}
void WOLFSSL_LEAVE(const char* msg, int ret)
{
if (loggingEnabled) {
char buffer[WOLFSSL_MAX_ERROR_SZ];
XSNPRINTF(buffer, sizeof(buffer), "wolfSSL Leaving %s, return %d",
msg, ret);
wolfssl_log(LEAVE_LOG , buffer);
}
}
WOLFSSL_API int WOLFSSL_IS_DEBUG_ON(void)
{
return loggingEnabled;
}
#endif /* !WOLFSSL_DEBUG_ERRORS_ONLY */
#endif /* DEBUG_WOLFSSL */
/*
* When using OPENSSL_EXTRA or DEBUG_WOLFSSL_VERBOSE macro then WOLFSSL_ERROR is
* mapped to new function WOLFSSL_ERROR_LINE which gets the line # and function
* name where WOLFSSL_ERROR is called at.
*/
#if defined(DEBUG_WOLFSSL) || defined(OPENSSL_ALL) || \
defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) || \
defined(OPENSSL_EXTRA)
#if (defined(OPENSSL_EXTRA) && !defined(_WIN32) && !defined(NO_ERROR_QUEUE)) \
|| defined(DEBUG_WOLFSSL_VERBOSE)
void WOLFSSL_ERROR_LINE(int error, const char* func, unsigned int line,
const char* file, void* usrCtx)
#else
void WOLFSSL_ERROR(int error)
#endif
{
#ifdef WOLFSSL_ASYNC_CRYPT
if (error != WC_PENDING_E)
#endif
{
char buffer[WOLFSSL_MAX_ERROR_SZ];
#if (defined(OPENSSL_EXTRA) && !defined(_WIN32) && \
!defined(NO_ERROR_QUEUE)) || defined(DEBUG_WOLFSSL_VERBOSE)
(void)usrCtx; /* a user ctx for future flexibility */
(void)func;
if (wc_LockMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Lock debug mutex failed");
XSNPRINTF(buffer, sizeof(buffer),
"wolfSSL error occurred, error = %d", error);
}
else {
#if defined(OPENSSL_EXTRA) && !defined(WOLFCRYPT_ONLY)
/* If running in compatibility mode do not add want read and
want right to error queue */
if (error != WANT_READ && error != WANT_WRITE) {
#endif
if (error < 0)
error = error - (2 * error); /* get absolute value */
XSNPRINTF(buffer, sizeof(buffer),
"wolfSSL error occurred, error = %d line:%d file:%s",
error, line, file);
if (wc_AddErrorNode(error, line, buffer, (char*)file) != 0) {
WOLFSSL_MSG("Error creating logging node");
/* with void function there is no return here, continue on
* to unlock mutex and log what buffer was created. */
}
#if defined(OPENSSL_EXTRA) && !defined(WOLFCRYPT_ONLY)
}
else {
XSNPRINTF(buffer, sizeof(buffer),
"wolfSSL error occurred, error = %d", error);
}
#endif
wc_UnLockMutex(&debug_mutex);
}
#else
XSNPRINTF(buffer, sizeof(buffer),
"wolfSSL error occurred, error = %d", error);
#endif
#ifdef DEBUG_WOLFSSL
if (loggingEnabled)
wolfssl_log(ERROR_LOG , buffer);
#endif
}
}
void WOLFSSL_ERROR_MSG(const char* msg)
{
#ifdef DEBUG_WOLFSSL
if (loggingEnabled)
wolfssl_log(ERROR_LOG , msg);
#else
(void)msg;
#endif
}
#endif /* DEBUG_WOLFSSL || WOLFSSL_NGINX || WOLFSSL_HAPROXY */
#if defined(OPENSSL_EXTRA) || defined(DEBUG_WOLFSSL_VERBOSE)
/* Internal function that is called by wolfCrypt_Init() */
int wc_LoggingInit(void)
{
if (wc_InitMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Bad Init Mutex");
return BAD_MUTEX_E;
}
wc_errors = NULL;
wc_current_node = NULL;
wc_last_node = NULL;
return 0;
}
/* internal function that is called by wolfCrypt_Cleanup */
int wc_LoggingCleanup(void)
{
/* clear logging entries */
wc_ClearErrorNodes();
/* free mutex */
if (wc_FreeMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Bad Mutex free");
return BAD_MUTEX_E;
}
return 0;
}
/* peek at an error node
*
* idx : if -1 then the most recent node is looked at, otherwise search
* through queue for node at the given index
* file : pointer to internal file string
* reason : pointer to internal error reason
* line : line number that error happened at
*
* Returns a negative value in error case, on success returns the nodes error
* value which is positive (absolute value)
*/
int wc_PeekErrorNode(int idx, const char **file, const char **reason,
int *line)
{
struct wc_error_queue* err;
if (wc_LockMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Lock debug mutex failed");
return BAD_MUTEX_E;
}
if (idx < 0) {
err = wc_last_node;
}
else {
int i;
err = (struct wc_error_queue*)wc_errors;
for (i = 0; i < idx; i++) {
if (err == NULL) {
WOLFSSL_MSG("Error node not found. Bad index?");
wc_UnLockMutex(&debug_mutex);
return BAD_FUNC_ARG;
}
err = err->next;
}
}
if (err == NULL) {
WOLFSSL_MSG("No Errors in queue");
wc_UnLockMutex(&debug_mutex);
return BAD_STATE_E;
}
if (file != NULL) {
*file = err->file;
}
if (reason != NULL) {
*reason = err->error;
}
if (line != NULL) {
*line = err->line;
}
wc_UnLockMutex(&debug_mutex);
return err->value;
}
/* Pulls the current node from error queue and increments current state.
* Note: this does not delete nodes because input arguments are pointing to
* node buffers.
*
* file pointer to file that error was in. Can be NULL to return no file.
* reason error string giving reason for error. Can be NULL to return no reason.
* line return line number of where error happened.
*
* returns the error value on success and BAD_MUTEX_E or BAD_STATE_E on failure
*/
int wc_PullErrorNode(const char **file, const char **reason, int *line)
{
struct wc_error_queue* err;
int value;
if (wc_LockMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Lock debug mutex failed");
return BAD_MUTEX_E;
}
err = wc_current_node;
if (err == NULL) {
WOLFSSL_MSG("No Errors in queue");
wc_UnLockMutex(&debug_mutex);
return BAD_STATE_E;
}
if (file != NULL) {
*file = err->file;
}
if (reason != NULL) {
*reason = err->error;
}
if (line != NULL) {
*line = err->line;
}
value = err->value;
wc_current_node = err->next;
wc_UnLockMutex(&debug_mutex);
return value;
}
/* create new error node and add it to the queue
* buffers are assumed to be of size WOLFSSL_MAX_ERROR_SZ for this internal
* function. debug_mutex should be locked before a call to this function. */
int wc_AddErrorNode(int error, int line, char* buf, char* file)
{
#if defined(NO_ERROR_QUEUE)
(void)error;
(void)line;
(void)buf;
(void)file;
WOLFSSL_MSG("Error queue turned off, can not add nodes");
#else
struct wc_error_queue* err;
err = (struct wc_error_queue*)XMALLOC(
sizeof(struct wc_error_queue), wc_error_heap, DYNAMIC_TYPE_LOG);
if (err == NULL) {
WOLFSSL_MSG("Unable to create error node for log");
return MEMORY_E;
}
else {
int sz;
XMEMSET(err, 0, sizeof(struct wc_error_queue));
err->heap = wc_error_heap;
sz = (int)XSTRLEN(buf);
if (sz > WOLFSSL_MAX_ERROR_SZ - 1) {
sz = WOLFSSL_MAX_ERROR_SZ - 1;
}
if (sz > 0) {
XMEMCPY(err->error, buf, sz);
}
sz = (int)XSTRLEN(file);
if (sz > WOLFSSL_MAX_ERROR_SZ - 1) {
sz = WOLFSSL_MAX_ERROR_SZ - 1;
}
if (sz > 0) {
XMEMCPY(err->file, file, sz);
}
err->value = error;
err->line = line;
/* make sure is terminated */
err->error[WOLFSSL_MAX_ERROR_SZ - 1] = '\0';
err->file[WOLFSSL_MAX_ERROR_SZ - 1] = '\0';
/* since is queue place new node at last of the list */
if (wc_last_node == NULL) {
/* case of first node added to queue */
if (wc_errors != NULL) {
/* check for unexpected case before over writing wc_errors */
WOLFSSL_MSG("ERROR in adding new node to logging queue!!\n");
/* In the event both wc_last_node and wc_errors are NULL, err
* goes unassigned to external wc_errors, wc_last_node. Free
* err in this instance since wc_ClearErrorNodes will not
*/
XFREE(err, wc_error_heap, DYNAMIC_TYPE_LOG);
}
else {
wc_errors = err;
wc_last_node = err;
wc_current_node = err;
}
}
else {
wc_last_node->next = err;
err->prev = wc_last_node;
wc_last_node = err;
/* check the case where have read to the end of the queue and the
* current node to read needs updated */
if (wc_current_node == NULL) {
wc_current_node = err;
}
}
}
#endif
return 0;
}
/* Removes the error node at the specified index.
* idx : if -1 then the most recent node is looked at, otherwise search
* through queue for node at the given index
*/
void wc_RemoveErrorNode(int idx)
{
struct wc_error_queue* current;
if (wc_LockMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Lock debug mutex failed");
return;
}
if (idx == -1)
current = wc_last_node;
else {
current = (struct wc_error_queue*)wc_errors;
for (; current != NULL && idx > 0; idx--)
current = current->next;
}
if (current != NULL) {
if (current->prev != NULL)
current->prev->next = current->next;
if (current->next != NULL)
current->next->prev = current->prev;
if (wc_last_node == current)
wc_last_node = current->prev;
if (wc_errors == current)
wc_errors = current->next;
if (wc_current_node == current)
wc_current_node = current->next;
XFREE(current, current->heap, DYNAMIC_TYPE_LOG);
}
wc_UnLockMutex(&debug_mutex);
}
/* Clears out the list of error nodes.
*/
void wc_ClearErrorNodes(void)
{
#if defined(DEBUG_WOLFSSL) || defined(WOLFSSL_NGINX) || \
defined(OPENSSL_EXTRA) || defined(DEBUG_WOLFSSL_VERBOSE)
if (wc_LockMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Lock debug mutex failed");
return;
}
/* free all nodes from error queue */
{
struct wc_error_queue* current;
struct wc_error_queue* next;
current = (struct wc_error_queue*)wc_errors;
while (current != NULL) {
next = current->next;
XFREE(current, current->heap, DYNAMIC_TYPE_LOG);
current = next;
}
}
wc_errors = NULL;
wc_last_node = NULL;
wc_current_node = NULL;
wc_UnLockMutex(&debug_mutex);
#endif /* DEBUG_WOLFSSL || WOLFSSL_NGINX */
}
int wc_SetLoggingHeap(void* h)
{
if (wc_LockMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Lock debug mutex failed");
return BAD_MUTEX_E;
}
wc_error_heap = h;
wc_UnLockMutex(&debug_mutex);
return 0;
}
/* frees all nodes in the queue
*
* id this is the thread id
*/
int wc_ERR_remove_state(void)
{
struct wc_error_queue* current;
struct wc_error_queue* next;
if (wc_LockMutex(&debug_mutex) != 0) {
WOLFSSL_MSG("Lock debug mutex failed");
return BAD_MUTEX_E;
}
/* free all nodes from error queue */
current = (struct wc_error_queue*)wc_errors;
while (current != NULL) {
next = current->next;
XFREE(current, current->heap, DYNAMIC_TYPE_LOG);
current = next;
}
wc_errors = NULL;
wc_last_node = NULL;
wc_UnLockMutex(&debug_mutex);
return 0;
}
#if !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM)
/* empties out the error queue into the file */
void wc_ERR_print_errors_fp(XFILE fp)
{
WOLFSSL_ENTER("wc_ERR_print_errors_fp");
if (wc_LockMutex(&debug_mutex) != 0)
{
WOLFSSL_MSG("Lock debug mutex failed");
}
else
{
/* free all nodes from error queue and print them to file */
{
struct wc_error_queue *current;
struct wc_error_queue *next;
current = (struct wc_error_queue *)wc_errors;
while (current != NULL)
{
next = current->next;
fprintf(fp, "%s\n", current->error);
XFREE(current, current->heap, DYNAMIC_TYPE_LOG);
current = next;
}
/* set global pointers to match having been freed */
wc_errors = NULL;
wc_last_node = NULL;
}
wc_UnLockMutex(&debug_mutex);
}
}
#endif /* !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM) */
#endif /* defined(OPENSSL_EXTRA) || defined(DEBUG_WOLFSSL_VERBOSE) */
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