1ae342f91a
In qdf_ini_parse(), verify that section_cb pointer is valid to prevent invalid memory access. Change-Id: Ie3d2e513e2aabf0bd5f9702578074cb1191991c1
151 satır
3.6 KiB
C
151 satır
3.6 KiB
C
/*
|
|
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for
|
|
* any purpose with or without fee is hereby granted, provided that the
|
|
* above copyright notice and this permission notice appear in all
|
|
* copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
|
|
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
|
|
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
|
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include "qdf_file.h"
|
|
#include "qdf_module.h"
|
|
#include "qdf_parse.h"
|
|
#include "qdf_status.h"
|
|
#include "qdf_str.h"
|
|
#include "qdf_trace.h"
|
|
#include "qdf_types.h"
|
|
|
|
QDF_STATUS qdf_ini_parse(const char *ini_path, void *context,
|
|
qdf_ini_item_cb item_cb, qdf_ini_section_cb section_cb)
|
|
{
|
|
QDF_STATUS status;
|
|
char *fbuf;
|
|
char *cursor;
|
|
int ini_read_count = 0;
|
|
|
|
if (qdf_str_eq(QDF_WIFI_MODULE_PARAMS_FILE, ini_path))
|
|
status = qdf_module_param_file_read(ini_path, &fbuf);
|
|
else
|
|
status = qdf_file_read(ini_path, &fbuf);
|
|
if (QDF_IS_STATUS_ERROR(status)) {
|
|
qdf_err("Failed to read *.ini file @ %s", ini_path);
|
|
return status;
|
|
}
|
|
|
|
/* foreach line */
|
|
cursor = fbuf;
|
|
while (*cursor != '\0') {
|
|
char *key = cursor;
|
|
char *value = NULL;
|
|
bool comment = false;
|
|
bool eol = false;
|
|
|
|
/*
|
|
* Look for the end of the line, while noting any
|
|
* value ('=') or comment ('#') indicators
|
|
*/
|
|
while (!eol) {
|
|
switch (*cursor) {
|
|
case '\r':
|
|
case '\n':
|
|
*cursor = '\0';
|
|
cursor++;
|
|
/* fall through */
|
|
case '\0':
|
|
eol = true;
|
|
break;
|
|
|
|
case '=':
|
|
/*
|
|
* The first '=' is the value indicator.
|
|
* Subsequent '=' are valid value characters.
|
|
*/
|
|
if (!value && !comment) {
|
|
value = cursor + 1;
|
|
*cursor = '\0';
|
|
}
|
|
|
|
cursor++;
|
|
break;
|
|
|
|
case '#':
|
|
/*
|
|
* We don't process comments, so we can null-
|
|
* terminate unconditionally here (unlike '=').
|
|
*/
|
|
comment = true;
|
|
*cursor = '\0';
|
|
/* fall through */
|
|
default:
|
|
cursor++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
key = qdf_str_trim(key);
|
|
|
|
/*
|
|
* Ignoring comments, a valid ini line contains one of:
|
|
* 1) some 'key=value' config item
|
|
* 2) section header
|
|
* 3) a line containing whitespace
|
|
*/
|
|
if (value) {
|
|
status = item_cb(context, key, value);
|
|
if (QDF_IS_STATUS_ERROR(status))
|
|
goto free_fbuf;
|
|
else
|
|
ini_read_count++;
|
|
} else if (key[0] == '[') {
|
|
qdf_size_t len = qdf_str_len(key);
|
|
|
|
if (key[len - 1] != ']') {
|
|
qdf_err("Invalid *.ini syntax '%s'", key);
|
|
} else {
|
|
key[len - 1] = '\0';
|
|
if (section_cb)
|
|
status = section_cb(context, key + 1);
|
|
else
|
|
status = QDF_STATUS_E_NULL_VALUE;
|
|
|
|
if (QDF_IS_STATUS_ERROR(status))
|
|
goto free_fbuf;
|
|
}
|
|
} else if (key[0] != '\0') {
|
|
qdf_err("Invalid *.ini syntax '%s'", key);
|
|
}
|
|
|
|
/* skip remaining EoL characters */
|
|
while (*cursor == '\n' || *cursor == '\r')
|
|
cursor++;
|
|
}
|
|
|
|
qdf_info("INI values read: %d", ini_read_count);
|
|
if (ini_read_count != 0) {
|
|
qdf_info("INI file parse successful");
|
|
status = QDF_STATUS_SUCCESS;
|
|
} else {
|
|
qdf_info("INI file parse fail: invalid file format");
|
|
status = QDF_STATUS_E_INVAL;
|
|
}
|
|
|
|
free_fbuf:
|
|
if (qdf_str_eq(QDF_WIFI_MODULE_PARAMS_FILE, ini_path))
|
|
qdf_module_param_file_free(fbuf);
|
|
else
|
|
qdf_file_buf_free(fbuf);
|
|
|
|
return status;
|
|
}
|
|
qdf_export_symbol(qdf_ini_parse);
|
|
|