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https://github.com/vanhoefm/fragattacks.git
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306ae22556
This new mechanism can be used to make wpa_supplicant using external storage (e.g., key store in the operating system) for passwords, passphrases, and PSKs. This commit is only adding the framework part needed to support this, i.e., no actual configuration parameter can yet use this new mechanism. In addition, only a simple test backend is added to allow developer testing of the functionality. Signed-hostap: 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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os_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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