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- /* logging.c
- *
- * Copyright (C) 2006-2023 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
- #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 HAVE_WC_INTROSPECTION
- const char *wolfSSL_configure_args(void) {
- #ifdef LIBWOLFSSL_CONFIGURE_ARGS
- /* the spaces on either side are to make matching simple and efficient. */
- return " " LIBWOLFSSL_CONFIGURE_ARGS " ";
- #else
- return NULL;
- #endif
- }
- PEDANTIC_EXTENSION const char *wolfSSL_global_cflags(void) {
- #ifdef LIBWOLFSSL_GLOBAL_CFLAGS
- /* the spaces on either side are to make matching simple and efficient. */
- return " " LIBWOLFSSL_GLOBAL_CFLAGS " ";
- #else
- return NULL;
- #endif
- }
- #endif /* HAVE_WC_INTROSPECTION */
- #ifdef HAVE_STACK_SIZE_VERBOSE
- THREAD_LS_T unsigned char *StackSizeCheck_myStack = NULL;
- THREAD_LS_T size_t StackSizeCheck_stackSize = 0;
- THREAD_LS_T size_t StackSizeCheck_stackSizeHWM = 0;
- THREAD_LS_T size_t *StackSizeCheck_stackSizeHWM_ptr = 0;
- THREAD_LS_T void *StackSizeCheck_stackOffsetPointer = 0;
- #endif /* HAVE_STACK_SIZE_VERBOSE */
- #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 */
- #ifdef DEBUG_VECTOR_REGISTER_ACCESS
- THREAD_LS_T int wc_svr_count = 0;
- THREAD_LS_T const char *wc_svr_last_file = NULL;
- THREAD_LS_T int wc_svr_last_line = -1;
- #endif
- /* 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)
- {
- if (funcNum < WC_FUNC_COUNT) {
- 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)
- {
- if (funcNum < WC_FUNC_COUNT) {
- 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>
- #elif defined(WOLFSSL_XILINX)
- #include "xil_printf.h"
- #elif defined(WOLFSSL_LINUXKM)
- /* the requisite linux/kernel.h is included in wc_port.h, with incompatible warnings masked out. */
- #elif defined(FUSION_RTOS)
- #include <fclstdio.h>
- #include <wolfssl/wolfcrypt/wc_port.h>
- #define fprintf FCL_FPRINTF
- #else
- #include <stdio.h> /* for default printf stuff */
- #endif
- #if defined(THREADX) && !defined(THREADX_NO_DC_PRINTF)
- int dc_log_printf(char*, ...);
- #endif
- #ifdef HAVE_STACK_SIZE_VERBOSE
- #include <wolfssl/wolfcrypt/mem_track.h>
- #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);
- #elif defined(WOLFSSL_XILINX)
- xil_printf("%s\r\n", logMessage);
- #elif defined(WOLFSSL_LINUXKM)
- printk("%s\n", logMessage);
- #elif defined(WOLFSSL_RENESAS_RA6M4)
- myprintf("%s\n", logMessage);
- #elif defined(STACK_SIZE_CHECKPOINT_MSG) && \
- defined(HAVE_STACK_SIZE_VERBOSE) && defined(HAVE_STACK_SIZE_VERBOSE_LOG)
- STACK_SIZE_CHECKPOINT_MSG(logMessage);
- #else
- fprintf(stderr, "%s\n", logMessage);
- #endif
- }
- }
- #ifndef WOLFSSL_DEBUG_ERRORS_ONLY
- #if defined(XVSNPRINTF) && !defined(NO_WOLFSSL_MSG_EX)
- #include <stdarg.h> /* for var args */
- #ifndef WOLFSSL_MSG_EX_BUF_SZ
- #define WOLFSSL_MSG_EX_BUF_SZ 100
- #endif
- #ifdef __clang__
- /* tell clang argument 1 is format */
- __attribute__((__format__ (__printf__, 1, 0)))
- #endif
- void WOLFSSL_MSG_EX(const char* fmt, ...)
- {
- if (loggingEnabled) {
- char msg[WOLFSSL_MSG_EX_BUF_SZ];
- int written;
- va_list args;
- va_start(args, fmt);
- written = XVSNPRINTF(msg, sizeof(msg), fmt, args);
- va_end(args);
- if (written > 0)
- wolfssl_log(INFO_LOG , msg);
- }
- }
- #endif
- 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;
- 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) {
- int 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 */
- #if defined(OPENSSL_EXTRA) || defined(DEBUG_WOLFSSL_VERBOSE)
- #ifdef WOLFSSL_HAVE_ERROR_QUEUE
- #ifdef ERROR_QUEUE_PER_THREAD
- /* Keep the error queue in thread-local-storage. The only ways this
- * API can deliver meaningful semantics in a multi-threaded setup.
- */
- #ifndef ERROR_QUEUE_MAX
- /* Same as OpenSSL v1.1.x limit, note that this is per thread */
- #define ERROR_QUEUE_MAX 16
- #endif
- struct wc_error_entry {
- char reason[WOLFSSL_MAX_ERROR_SZ];
- char file[WOLFSSL_MAX_ERROR_SZ];
- int line;
- int err;
- };
- struct wc_error_queue {
- struct wc_error_entry entries[ERROR_QUEUE_MAX];
- size_t head_idx;
- size_t count;
- };
- /* The complete queue in a thread local without allocations */
- static THREAD_LS_T struct wc_error_queue wc_errors;
- /* Using thread-local-storage, we do not need a mutex. */
- #define ERRQ_LOCK() 0
- #define ERRQ_UNLOCK() (void)0
- /**
- * Given a relative index (from head of the error list), return
- * the absolute index in the `wc_errors->entries` array for
- * the entry or -1 if no such entry exists/is present.
- */
- static int get_abs_idx(int relative_idx)
- {
- if ((wc_errors.count == 0) || (relative_idx >= (int)wc_errors.count)) {
- return -1;
- }
- if (relative_idx < 0) {
- return (int)((wc_errors.head_idx + wc_errors.count - 1)
- % ERROR_QUEUE_MAX);
- }
- return (int)((wc_errors.head_idx + (size_t)relative_idx) % ERROR_QUEUE_MAX);
- }
- /**
- * Return the error entry at the given relative index, if
- * it exists, e.g. `relative_idx` is in a valid range.
- */
- static struct wc_error_entry *get_entry(int relative_idx)
- {
- int abs_idx;
- abs_idx = get_abs_idx(relative_idx);
- if (abs_idx < 0) {
- return NULL;
- }
- return &wc_errors.entries[abs_idx];
- }
- /**
- * Return the error code in the given error `entry` and populate
- * `file`, `reason` and `line` with its values.
- * `entry` may be NULL, in which case BAD_STATE_E is returned.
- */
- static int pass_entry(struct wc_error_entry *entry,
- const char **file, const char **reason,
- int *line)
- {
- if (entry == NULL) {
- WOLFSSL_MSG("No Error found in queue");
- return BAD_STATE_E;
- }
- if (file != NULL) {
- *file = entry->file;
- }
- if (reason != NULL) {
- *reason = entry->reason;
- }
- if (line != NULL) {
- *line = entry->line;
- }
- return entry->err;
- }
- /**
- * Assign entry with values, resets all previously present values.
- */
- static void set_entry(struct wc_error_entry *entry, int error,
- const char *file, const char *reason, int line)
- {
- size_t sz;
- XMEMSET(entry, 0, sizeof(struct wc_error_entry));
- entry->err = error;
- entry->line = line;
- sz = XSTRLEN(reason);
- if (sz > WOLFSSL_MAX_ERROR_SZ - 1) {
- sz = WOLFSSL_MAX_ERROR_SZ - 1;
- }
- if (sz > 0) {
- XMEMCPY(entry->reason, reason, sz);
- entry->reason[WOLFSSL_MAX_ERROR_SZ - 1] = '\0';
- }
- sz = XSTRLEN(file);
- if (sz > WOLFSSL_MAX_ERROR_SZ - 1) {
- sz = WOLFSSL_MAX_ERROR_SZ - 1;
- }
- if (sz > 0) {
- XMEMCPY(entry->file, file, sz);
- entry->file[WOLFSSL_MAX_ERROR_SZ - 1] = '\0';
- }
- }
- /* Internal function that is called by wolfCrypt_Init() */
- int wc_LoggingInit(void)
- {
- return 0;
- }
- /* internal function that is called by wolfCrypt_Cleanup */
- int wc_LoggingCleanup(void)
- {
- /* clear logging entries */
- wc_ClearErrorNodes();
- return 0;
- }
- /**
- * Get the values from the HEAD of the ERR queue, but keep it in place.
- * If the queue is empty, return BAD_STATE_E.
- */
- int wc_PeekErrorNode(int idx, const char **file, const char **reason,
- int *line)
- {
- return pass_entry(get_entry(idx), file, reason, line);
- }
- /**
- * Get the values from the HEAD of the ERR queue and remove it.
- * If the queue is empty, return BAD_STATE_E.
- */
- int wc_PullErrorNode(const char **file, const char **reason, int *line)
- {
- struct wc_error_entry *entry;
- int ret;
- entry = get_entry(0);
- ret = pass_entry(entry, file, reason, line);
- if (entry != NULL) {
- wc_RemoveErrorNode(0);
- }
- return ret;
- }
- /* 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. */
- int wc_AddErrorNode(int error, int line, char* reason, char* file)
- {
- struct wc_error_entry *entry;
- size_t idx;
- if (wc_errors.count >= ERROR_QUEUE_MAX) {
- WOLFSSL_MSG("Error queue is full, at ERROR_QUEUE_MAX");
- return MEMORY_E;
- }
- idx = (wc_errors.head_idx + wc_errors.count) % ERROR_QUEUE_MAX;
- entry = &wc_errors.entries[idx];
- set_entry(entry, error, file, reason, line);
- ++wc_errors.count;
- return 0;
- }
- /**
- * Remove the entry at relative position `relative_idx` from the ERR queue.
- * For `relative_idx == 0` it removes the queue's head entry, for -1
- * it removes the last entry in the queue.
- */
- void wc_RemoveErrorNode(int relative_idx)
- {
- int abs_idx = get_abs_idx(relative_idx);
- if (abs_idx >= 0) {
- size_t move_count;
- if (abs_idx >= (int)wc_errors.head_idx) {
- /* removed entry sits "above" head (or is head),
- * move entries below it "up" */
- move_count = (size_t)abs_idx - wc_errors.head_idx;
- if (move_count > 0) {
- XMEMMOVE(&wc_errors.entries[wc_errors.head_idx + 1],
- &wc_errors.entries[wc_errors.head_idx],
- sizeof(wc_errors.entries[0]) * move_count);
- }
- wc_errors.head_idx = (wc_errors.head_idx + 1) % ERROR_QUEUE_MAX;
- --wc_errors.count;
- }
- else {
- /* removed entry sits "below" head (wrap around),
- * move entries above it "down" */
- int last_idx = get_abs_idx(-1);
- if (last_idx >= abs_idx) { /* this SHOULD always be true */
- move_count = (size_t)(last_idx - abs_idx);
- if (move_count > 0) {
- XMEMMOVE(&wc_errors.entries[abs_idx],
- &wc_errors.entries[abs_idx + 1],
- sizeof(wc_errors.entries[0]) * move_count);
- }
- --wc_errors.count;
- }
- }
- }
- }
- /**
- * Clear the ERR queue.
- */
- void wc_ClearErrorNodes(void)
- {
- if (wc_errors.count > 0) {
- XMEMSET(&wc_errors, 0, sizeof(wc_errors));
- }
- }
- int wc_SetLoggingHeap(void* h)
- {
- (void)h;
- return 0;
- }
- int wc_ERR_remove_state(void)
- {
- wc_ClearErrorNodes();
- return 0;
- }
- /**
- * Get the first entry's values in the ERR queue that is not filtered
- * by the provided `ignore_err` callback. All ignored entries are removed,
- * making the returned entry the head of the ERR queue afterwards.
- *
- * In case all entries are ignored, the ERR queue will be empty afterwards.
- * For an empty ERR queue 0 is returned.
- *
- * `ignore_err` may be NULL, in which case this returns the HEAD values.
- *
- * `flags` is present for OpenSSL compatibility, but will always be
- * set to 0, since we do not keep flags at ERR entries.
- */
- unsigned long wc_PeekErrorNodeLineData(const char **file, int *line,
- const char **data, int *flags,
- int (*ignore_err)(int err))
- {
- WOLFSSL_ENTER("wc_PeekErrorNodeLineData");
- /* No data or flags stored - error display only in Nginx. */
- if (data != NULL) {
- *data = "";
- }
- if (flags != NULL) {
- *flags = 0;
- }
- while (1) {
- int ret = wc_PeekErrorNode(0, file, NULL, line);
- if (ret == BAD_STATE_E) {
- WOLFSSL_MSG("Issue peeking at error node in queue");
- return 0;
- }
- /* OpenSSL uses positive error codes */
- if (ret < 0) {
- ret = -ret;
- }
- /* an error that the caller wants to ignore? */
- if (ignore_err && ignore_err(ret)) {
- wc_RemoveErrorNode(0);
- continue;
- }
- return (unsigned long)ret;
- }
- }
- /**
- * Get the error value at the HEAD of the ERR queue or 0 if the queue
- * is empty. The HEAD entry is removed by this call.
- */
- unsigned long wc_GetErrorNodeErr(void)
- {
- int ret;
- WOLFSSL_ENTER("wc_GetErrorNodeErr");
- ret = wc_PullErrorNode(NULL, NULL, NULL);
- if (ret < 0) {
- if (ret == BAD_STATE_E) {
- ret = 0; /* no errors in queue */
- }
- else {
- WOLFSSL_MSG("Error with pulling error node!");
- WOLFSSL_LEAVE("wolfSSL_ERR_get_error", ret);
- ret = 0 - ret; /* return absolute value of error */
- /* panic and try to clear out nodes */
- wc_ClearErrorNodes();
- }
- }
- return (unsigned long)ret;
- }
- #if !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM)
- /* This callback allows the application to provide a custom error printing
- * function. */
- void wc_ERR_print_errors_cb(int (*cb)(const char *str, size_t len, void *u),
- void *u)
- {
- size_t i;
- WOLFSSL_ENTER("wc_ERR_print_errors_cb");
- if (cb == NULL) {
- /* Invalid param */
- return;
- }
- for (i = 0; i < wc_errors.count; ++i) {
- struct wc_error_entry *entry = get_entry((int)i);
- if (entry == NULL)
- break;
- cb(entry->reason, XSTRLEN(entry->reason), u);
- }
- wc_ClearErrorNodes();
- }
- #endif /* !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM) */
- #else /* ERROR_QUEUE_PER_THREAD */
- /* Error queue is a global list. This is the original implementation and
- * the fallback on platforms that do not have thread-local-storage.
- *
- * Access and manipulations of the list are protected by a mutex, however
- * that does not prevent errors from another thread showing up. Therefore,
- * its usefulness is limited to applications with restricted thread
- * concurrency in using wolfSSL.
- */
- #ifndef ERROR_QUEUE_MAX
- /* With a global list, we allow a higher limit. */
- #define ERROR_QUEUE_MAX 100
- #endif
- /* The information we keep about a single error */
- 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;
- };
- /* The global list of errors encountered */
- static struct wc_error_queue* wc_errors;
- static int wc_errors_count = 0;
- /* pointer to last node in queue to make insertion O(1) */
- static struct wc_error_queue* wc_last_node;
- /* The 'current' cursor the application is using to access the list */
- static struct wc_error_queue* wc_current_node;
- /* heap info currently used for allocation of entries */
- static void* wc_error_heap;
- /* mutex for list operation protection */
- static wolfSSL_Mutex wc_error_mutex;
- #define ERRQ_MUTEX_INIT() wc_InitMutex(&wc_error_mutex)
- #define ERRQ_MUTEX_FREE() wc_FreeMutex(&wc_error_mutex)
- #define ERRQ_LOCK() wc_LockMutex(&wc_error_mutex)
- #define ERRQ_UNLOCK() wc_UnLockMutex(&wc_error_mutex)
- /* Internal function that is called by wolfCrypt_Init() */
- int wc_LoggingInit(void)
- {
- if (ERRQ_MUTEX_INIT() != 0) {
- WOLFSSL_MSG("Bad Init Mutex");
- return BAD_MUTEX_E;
- }
- wc_errors_count = 0;
- 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 (ERRQ_MUTEX_FREE() != 0) {
- WOLFSSL_MSG("Bad Mutex free");
- return BAD_MUTEX_E;
- }
- return 0;
- }
- static int peekErrorNode(int idx, const char **file, const char **reason,
- int *line)
- {
- struct wc_error_queue* err;
- 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?");
- return BAD_FUNC_ARG;
- }
- err = err->next;
- }
- }
- if (err == NULL) {
- WOLFSSL_MSG("No Errors in queue");
- return BAD_STATE_E;
- }
- if (file != NULL) {
- *file = err->file;
- }
- if (reason != NULL) {
- *reason = err->error;
- }
- if (line != NULL) {
- *line = err->line;
- }
- return err->value;
- }
- /* 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 starting
- * from the absolute head wc_errors
- * 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)
- {
- int ret;
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- return BAD_MUTEX_E;
- }
- ret = peekErrorNode(idx, file, reason, line);
- ERRQ_UNLOCK();
- return ret;
- }
- static int pullErrorNode(const char **file, const char **reason, int *line)
- {
- struct wc_error_queue* err;
- int value;
- err = wc_current_node;
- if (err == NULL) {
- WOLFSSL_MSG("No Errors in queue");
- 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;
- return 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)
- {
- int value;
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- return BAD_MUTEX_E;
- }
- value = pullErrorNode(file, reason, line);
- ERRQ_UNLOCK();
- 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. */
- int wc_AddErrorNode(int error, int line, char* buf, char* file)
- {
- struct wc_error_queue* err;
- if (wc_errors_count >= ERROR_QUEUE_MAX) {
- WOLFSSL_MSG("Error queue is full, at ERROR_QUEUE_MAX");
- return MEMORY_E;
- }
- 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!!");
- /* 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;
- }
- }
- wc_errors_count++;
- }
- return 0;
- }
- /* returns the current index into the queue, which is the node that
- * wc_current_node is pointing to. It can be greater than zero in cases
- * where wc_PullErrorNode() has been called without the node having been
- * removed. */
- static int getErrorNodeCurrentIdx(void)
- {
- int ret = 0;
- struct wc_error_queue* current;
- current = (struct wc_error_queue*)wc_errors;
- while (current != wc_current_node && current != NULL) {
- current = current->next;
- ret++;
- }
- /* wc_current_node was not found in the list! use index 0 */
- if (current == NULL) {
- ret = 0;
- }
- return ret;
- }
- static void removeErrorNode(int idx)
- {
- struct wc_error_queue* current;
- 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_errors_count--;
- /* last node left in list was free'd, reset list head */
- if (wc_errors_count == 0) {
- wc_errors = NULL;
- wc_last_node = NULL;
- wc_current_node = NULL;
- }
- }
- }
- /* 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 starting
- * from the absolute head wc_errors
- */
- void wc_RemoveErrorNode(int idx)
- {
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- return;
- }
- removeErrorNode(idx);
- ERRQ_UNLOCK();
- }
- static void clearErrorNodes(void)
- {
- struct wc_error_queue* current;
- struct wc_error_queue* next;
- /* free all nodes from error queue (even previously 'pulled' ones) starting
- * at the lists absolute head of wc_errors */
- current = (struct wc_error_queue*)wc_errors;
- while (current != NULL) {
- next = current->next;
- XFREE(current, current->heap, DYNAMIC_TYPE_LOG);
- current = next;
- }
- wc_errors_count = 0;
- wc_errors = NULL;
- wc_last_node = NULL;
- wc_current_node = NULL;
- }
- /* Clears out the list of error nodes.
- */
- void wc_ClearErrorNodes(void)
- {
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- return;
- }
- clearErrorNodes();
- ERRQ_UNLOCK();
- }
- int wc_SetLoggingHeap(void* h)
- {
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- return BAD_MUTEX_E;
- }
- wc_error_heap = h;
- ERRQ_UNLOCK();
- 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 (ERRQ_LOCK() != 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_count = 0;
- wc_errors = NULL;
- wc_last_node = NULL;
- ERRQ_UNLOCK();
- return 0;
- }
- unsigned long wc_PeekErrorNodeLineData(const char **file, int *line,
- const char **data, int *flags,
- int (*ignore_err)(int err))
- {
- int idx;
- WOLFSSL_ENTER("wc_PeekErrorNodeLineData");
- /* No data or flags stored - error display only in Nginx. */
- if (data != NULL) {
- *data = "";
- }
- if (flags != NULL) {
- *flags = 0;
- }
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- return (unsigned long)(0 - BAD_MUTEX_E);
- }
- idx = getErrorNodeCurrentIdx();
- while (1) {
- int ret = peekErrorNode(idx, file, NULL, line);
- if (ret == BAD_MUTEX_E || ret == BAD_FUNC_ARG || ret == BAD_STATE_E) {
- ERRQ_UNLOCK();
- WOLFSSL_MSG("Issue peeking at error node in queue");
- return 0;
- }
- /* OpenSSL uses positive error codes */
- if (ret < 0) {
- ret = -ret;
- }
- if (ignore_err && ignore_err(ret)) {
- removeErrorNode(idx);
- continue;
- }
- ERRQ_UNLOCK();
- return (unsigned long)ret;
- }
- }
- unsigned long wc_GetErrorNodeErr(void)
- {
- int ret;
- WOLFSSL_ENTER("wc_GetErrorNodeErr");
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- return (unsigned long)(0 - BAD_MUTEX_E);
- }
- ret = pullErrorNode(NULL, NULL, NULL);
- if (ret < 0) {
- if (ret == BAD_STATE_E) {
- ret = 0; /* no errors in queue */
- }
- else {
- WOLFSSL_MSG("Error with pulling error node!");
- WOLFSSL_LEAVE("wolfSSL_ERR_get_error", ret);
- ret = 0 - ret; /* return absolute value of error */
- /* panic and try to clear out nodes */
- clearErrorNodes();
- }
- }
- else {
- int idx = getErrorNodeCurrentIdx();
- if (idx < 0) {
- WOLFSSL_MSG("Error with getting current index!");
- ret = BAD_STATE_E;
- WOLFSSL_LEAVE("wolfSSL_ERR_get_error", ret);
- /* panic and try to clear out nodes and reset queue state */
- clearErrorNodes();
- }
- else if (idx > 0) {
- idx -= 1;
- removeErrorNode(idx);
- }
- else {
- /* if current idx is 0 then the queue only had one node */
- removeErrorNode(idx);
- }
- }
- ERRQ_UNLOCK();
- return ret;
- }
- #if !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM)
- /* This callback allows the application to provide a custom error printing
- * function. */
- void wc_ERR_print_errors_cb(int (*cb)(const char *str, size_t len, void *u),
- void *u)
- {
- WOLFSSL_ENTER("wc_ERR_print_errors_cb");
- if (cb == NULL) {
- /* Invalid param */
- return;
- }
- if (ERRQ_LOCK() != 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;
- cb(current->error, XSTRLEN(current->error), u);
- XFREE(current, current->heap, DYNAMIC_TYPE_LOG);
- current = next;
- }
- /* set global pointers to match having been freed */
- wc_errors_count = 0;
- wc_errors = NULL;
- wc_last_node = NULL;
- ERRQ_UNLOCK();
- }
- }
- #endif /* !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM) */
- #endif /* !ERROR_QUEUE_PER_THREAD */
- #else /* WOLFSSL_HAVE_ERROR_QUEUE */
- /* NO ERROR_QUEUE at all */
- int wc_LoggingInit(void)
- {
- return 0;
- }
- /* internal function that is called by wolfCrypt_Cleanup */
- int wc_LoggingCleanup(void)
- {
- return 0;
- }
- int wc_PeekErrorNode(int idx, const char **file, const char **reason,
- int *line)
- {
- (void)idx;
- (void)file;
- (void)reason;
- (void)line;
- WOLFSSL_MSG("Error queue turned off, can not peak nodes");
- return NOT_COMPILED_IN;
- }
- int wc_PullErrorNode(const char **file, const char **reason, int *line)
- {
- (void)file;
- (void)reason;
- (void)line;
- WOLFSSL_MSG("Error queue turned off, can not pull nodes");
- return NOT_COMPILED_IN;
- }
- int wc_AddErrorNode(int error, int line, char* buf, char* file)
- {
- (void)error;
- (void)line;
- (void)buf;
- (void)file;
- WOLFSSL_MSG("Error queue turned off, can not add nodes");
- return NOT_COMPILED_IN;
- }
- void wc_RemoveErrorNode(int idx)
- {
- (void)idx;
- WOLFSSL_MSG("Error queue turned off, can not remove nodes");
- }
- void wc_ClearErrorNodes(void)
- {
- WOLFSSL_MSG("Error queue turned off, can not clear nodes");
- }
- int wc_SetLoggingHeap(void* h)
- {
- (void)h;
- return 0;
- }
- int wc_ERR_remove_state(void)
- {
- return 0;
- }
- unsigned long wc_PeekErrorNodeLineData(const char **file, int *line,
- const char **data, int *flags,
- int (*ignore_err)(int err))
- {
- WOLFSSL_ENTER("wc_PeekErrorNodeLineData");
- (void)line;
- (void)file;
- (void)ignore_err;
- if (data != NULL) {
- *data = "";
- }
- if (flags != NULL) {
- *flags = 0;
- }
- return (unsigned long)(0 - NOT_COMPILED_IN);
- }
- unsigned long wc_GetErrorNodeErr(void)
- {
- WOLFSSL_ENTER("wc_GetErrorNodeErr");
- return (unsigned long)(0 - NOT_COMPILED_IN);
- }
- #if !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM)
- void wc_ERR_print_errors_cb(int (*cb)(const char *str, size_t len, void *u),
- void *u)
- {
- WOLFSSL_ENTER("wc_ERR_print_errors_cb");
- (void)cb;
- (void)u;
- }
- #endif /* !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM) */
- #endif /* !WOLFSSL_HAVE_ERROR_QUEUE */
- #if !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM)
- /* empties out the error queue into the file */
- static int wc_ERR_dump_to_file (const char *str, size_t len, void *u)
- {
- XFILE fp = (XFILE ) u;
- if (fprintf(fp, "%-*.*s\n", (int)len, (int)len, str) < 0)
- return IO_FAILED_E;
- return 0;
- }
- void wc_ERR_print_errors_fp(XFILE fp)
- {
- WOLFSSL_ENTER("wc_ERR_print_errors_fp");
- /* Send all errors to the wc_ERR_dump_to_file function */
- wc_ERR_print_errors_cb(wc_ERR_dump_to_file, fp);
- }
- #endif /* !defined(NO_FILESYSTEM) && !defined(NO_STDIO_FILESYSTEM) */
- #endif /* defined(OPENSSL_EXTRA) || defined(DEBUG_WOLFSSL_VERBOSE) */
- /*
- * 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)
- #ifdef WOLFSSL_HAVE_ERROR_QUEUE
- 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];
- #ifdef WOLFSSL_HAVE_ERROR_QUEUE
- (void)usrCtx; /* a user ctx for future flexibility */
- (void)func;
- if (ERRQ_LOCK() != 0) {
- WOLFSSL_MSG("Lock debug mutex failed");
- (void)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 */
- (void)XSNPRINTF(buffer, sizeof(buffer),
- "wolfSSL error occurred, error = %d line:%u file:%s",
- error, line, file);
- if (wc_AddErrorNode(error, (int)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 {
- (void)XSNPRINTF(buffer, sizeof(buffer),
- "wolfSSL error occurred, error = %d", error);
- }
- #endif
- ERRQ_UNLOCK();
- }
- #else
- (void)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 */
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