mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
33388b44b6
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11616)
143 lines
3.8 KiB
C
143 lines
3.8 KiB
C
/*
|
|
* Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <openssl/opensslconf.h>
|
|
#include <openssl/trace.h>
|
|
#include "apps.h"
|
|
#include "../testutil.h"
|
|
|
|
#ifndef OPENSSL_NO_TRACE
|
|
typedef struct tracedata_st {
|
|
BIO *bio;
|
|
unsigned int ingroup:1;
|
|
} tracedata;
|
|
|
|
static size_t internal_trace_cb(const char *buf, size_t cnt,
|
|
int category, int cmd, void *vdata)
|
|
{
|
|
int ret = 0;
|
|
tracedata *trace_data = vdata;
|
|
char buffer[256], *hex;
|
|
CRYPTO_THREAD_ID tid;
|
|
|
|
switch (cmd) {
|
|
case OSSL_TRACE_CTRL_BEGIN:
|
|
trace_data->ingroup = 1;
|
|
|
|
tid = CRYPTO_THREAD_get_current_id();
|
|
hex = OPENSSL_buf2hexstr((const unsigned char *)&tid, sizeof(tid));
|
|
BIO_snprintf(buffer, sizeof(buffer), "TRACE[%s]:%s: ",
|
|
hex, OSSL_trace_get_category_name(category));
|
|
OPENSSL_free(hex);
|
|
BIO_set_prefix(trace_data->bio, buffer);
|
|
break;
|
|
case OSSL_TRACE_CTRL_WRITE:
|
|
ret = BIO_write(trace_data->bio, buf, cnt);
|
|
break;
|
|
case OSSL_TRACE_CTRL_END:
|
|
trace_data->ingroup = 0;
|
|
|
|
BIO_set_prefix(trace_data->bio, NULL);
|
|
break;
|
|
}
|
|
|
|
return ret < 0 ? 0 : ret;
|
|
}
|
|
|
|
DEFINE_STACK_OF(tracedata)
|
|
static STACK_OF(tracedata) *trace_data_stack;
|
|
|
|
static void tracedata_free(tracedata *data)
|
|
{
|
|
BIO_free_all(data->bio);
|
|
OPENSSL_free(data);
|
|
}
|
|
|
|
static STACK_OF(tracedata) *trace_data_stack;
|
|
|
|
static void cleanup_trace(void)
|
|
{
|
|
sk_tracedata_pop_free(trace_data_stack, tracedata_free);
|
|
}
|
|
|
|
static void setup_trace_category(int category)
|
|
{
|
|
BIO *channel;
|
|
tracedata *trace_data;
|
|
|
|
if (OSSL_trace_enabled(category))
|
|
return;
|
|
|
|
channel = BIO_push(BIO_new(BIO_f_prefix()),
|
|
BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT));
|
|
trace_data = OPENSSL_zalloc(sizeof(*trace_data));
|
|
|
|
if (trace_data == NULL
|
|
|| (trace_data->bio = channel) == NULL
|
|
|| OSSL_trace_set_callback(category, internal_trace_cb,
|
|
trace_data) == 0
|
|
|| sk_tracedata_push(trace_data_stack, trace_data) == 0) {
|
|
|
|
fprintf(stderr,
|
|
"warning: unable to setup trace callback for category '%s'.\n",
|
|
OSSL_trace_get_category_name(category));
|
|
|
|
OSSL_trace_set_callback(category, NULL, NULL);
|
|
BIO_free_all(channel);
|
|
}
|
|
}
|
|
|
|
static void setup_trace(const char *str)
|
|
{
|
|
char *val;
|
|
|
|
/*
|
|
* We add this handler as early as possible to ensure it's executed
|
|
* as late as possible, i.e. after the TRACE code has done its cleanup
|
|
* (which happens last in OPENSSL_cleanup).
|
|
*/
|
|
atexit(cleanup_trace);
|
|
|
|
trace_data_stack = sk_tracedata_new_null();
|
|
val = OPENSSL_strdup(str);
|
|
|
|
if (val != NULL) {
|
|
char *valp = val;
|
|
char *item;
|
|
|
|
for (valp = val; (item = strtok(valp, ",")) != NULL; valp = NULL) {
|
|
int category = OSSL_trace_get_category_num(item);
|
|
|
|
if (category == OSSL_TRACE_CATEGORY_ALL) {
|
|
while (++category < OSSL_TRACE_CATEGORY_NUM)
|
|
setup_trace_category(category);
|
|
break;
|
|
} else if (category > 0) {
|
|
setup_trace_category(category);
|
|
} else {
|
|
fprintf(stderr,
|
|
"warning: unknown trace category: '%s'.\n", item);
|
|
}
|
|
}
|
|
}
|
|
|
|
OPENSSL_free(val);
|
|
}
|
|
#endif /* OPENSSL_NO_TRACE */
|
|
|
|
int global_init(void)
|
|
{
|
|
#ifndef OPENSSL_NO_TRACE
|
|
setup_trace(getenv("OPENSSL_TRACE"));
|
|
#endif
|
|
|
|
return 1;
|
|
}
|