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121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "ssl_dbg.h"
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struct err_error_st {
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/* file contains the filename where the error occurred. */
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const char *file;
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/* packed contains the error library and reason, as packed by ERR_PACK. */
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uint32_t packed;
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/* line contains the line number where the error occurred. */
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uint32_t line;
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};
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#define ERR_NUM_ERRORS 4
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typedef struct err_state_st {
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/* errors contains the ERR_NUM_ERRORS most recent errors, organised as a ring
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* buffer. */
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struct err_error_st errors[ERR_NUM_ERRORS];
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/* top contains the index one past the most recent error. If |top| equals
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* |bottom| then the queue is empty. */
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unsigned top;
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/* bottom contains the index of the last error in the queue. */
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unsigned bottom;
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} ERR_STATE;
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#if CONFIG_OPENSSL_ERROR_STACK
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static ERR_STATE s_err_state = { 0 };
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#endif
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void ERR_clear_error(void)
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{
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#if CONFIG_OPENSSL_ERROR_STACK
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memset(&s_err_state.errors[0], 0, sizeof(struct err_state_st));
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s_err_state.top = s_err_state.bottom = 0;
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#endif
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}
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static uint32_t ERR_get_peek_error_internal(const char **file, int *line, bool peak)
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{
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#if CONFIG_OPENSSL_ERROR_STACK
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if (s_err_state.top == s_err_state.bottom) {
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return 0;
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}
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unsigned new_bottom = (s_err_state.bottom + 1) % ERR_NUM_ERRORS;
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int err = s_err_state.errors[new_bottom].packed;
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if (file) {
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*file = s_err_state.errors[new_bottom].file;
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}
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if (line) {
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*line = s_err_state.errors[new_bottom].line;
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}
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if (peak == false) {
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memset(&s_err_state.errors[new_bottom], 0, sizeof(struct err_error_st));
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s_err_state.bottom = new_bottom;
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}
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return err;
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#else
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return 0;
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#endif
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}
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uint32_t ERR_get_error(void)
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{
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return ERR_get_peek_error_internal(NULL, NULL, false);
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}
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uint32_t ERR_peek_error(void)
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{
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return ERR_get_peek_error_internal(NULL, NULL, true);
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}
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uint32_t ERR_peek_last_error(void)
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{
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return ERR_get_peek_error_internal(NULL, NULL, true);
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}
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uint32_t ERR_peek_error_line_data(const char **file, int *line, const char **data, int *flags)
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{
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return ERR_get_peek_error_internal(file, line, true);
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}
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uint32_t ERR_get_error_line_data(const char **file, int *line, const char **data, int *flags)
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{
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return ERR_get_peek_error_internal(file, line, false);
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}
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const char *ERR_reason_error_string(uint32_t packed_error)
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{
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return NULL;
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}
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void ERR_put_error(int library, int unused, int reason, const char *file, unsigned line)
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{
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#if CONFIG_OPENSSL_ERROR_STACK
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s_err_state.top = (s_err_state.top + 1) % ERR_NUM_ERRORS;
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if (s_err_state.top == s_err_state.bottom) {
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s_err_state.bottom = (s_err_state.bottom + 1) % ERR_NUM_ERRORS;
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}
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s_err_state.errors[s_err_state.top].packed = (uint32_t)library<<24 | abs(reason);
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s_err_state.errors[s_err_state.top].file = file;
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s_err_state.errors[s_err_state.top].line = line;
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#endif
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}
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