19c48da06b
Use an explicit memset call to clear any wpa_supplicant configuration parameter that contains private information like keys or identity. This brings in an additional layer of protection by reducing the length of time this type of private data is kept in memory. Signed-off-by: Jouni Malinen <j@w1.fi>
91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
/*
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* External password backend
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* Copyright (c) 2012, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "ext_password_i.h"
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struct ext_password_test_data {
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char *params;
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};
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static void * ext_password_test_init(const char *params)
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{
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struct ext_password_test_data *data;
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data = os_zalloc(sizeof(*data));
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if (data == NULL)
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return NULL;
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if (params)
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data->params = os_strdup(params);
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return data;
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}
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static void ext_password_test_deinit(void *ctx)
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{
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struct ext_password_test_data *data = ctx;
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str_clear_free(data->params);
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os_free(data);
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}
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static struct wpabuf * ext_password_test_get(void *ctx, const char *name)
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{
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struct ext_password_test_data *data = ctx;
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char *pos, *pos2;
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size_t nlen;
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wpa_printf(MSG_DEBUG, "EXT PW TEST: get(%s)", name);
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pos = data->params;
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if (pos == NULL)
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return NULL;
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nlen = os_strlen(name);
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while (pos && *pos) {
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if (os_strncmp(pos, name, nlen) == 0 && pos[nlen] == '=') {
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struct wpabuf *buf;
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pos += nlen + 1;
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pos2 = pos;
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while (*pos2 != '|' && *pos2 != '\0')
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pos2++;
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buf = ext_password_alloc(pos2 - pos);
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if (buf == NULL)
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return NULL;
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wpabuf_put_data(buf, pos, pos2 - pos);
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wpa_hexdump_ascii_key(MSG_DEBUG, "EXT PW TEST: value",
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wpabuf_head(buf),
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wpabuf_len(buf));
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return buf;
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}
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pos = os_strchr(pos + 1, '|');
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if (pos)
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pos++;
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}
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wpa_printf(MSG_DEBUG, "EXT PW TEST: get(%s) - not found", name);
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return NULL;
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}
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const struct ext_password_backend ext_password_test = {
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.name = "test",
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.init = ext_password_test_init,
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.deinit = ext_password_test_deinit,
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.get = ext_password_test_get,
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};
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