fd4580e1e8
This limits the EAP-SIM and EAP-AKA tests to 100 test frames to avoid undesired timeouts in automated fuzz testing. The real world uses are limited to 50 rounds, so there is not really any point in trying with thousands of frames. Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
127 lines
2.4 KiB
C
127 lines
2.4 KiB
C
/*
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* EAP-SIM peer fuzzer
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* Copyright (c) 2019, 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 "utils/includes.h"
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#include "utils/common.h"
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#include "eap_peer/eap_methods.h"
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#include "eap_peer/eap_config.h"
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#include "eap_peer/eap_i.h"
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#include "../fuzzer-common.h"
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int eap_peer_sim_register(void);
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struct eap_method * registered_eap_method = NULL;
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struct eap_method * eap_peer_method_alloc(int version, int vendor,
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enum eap_type method,
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const char *name)
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{
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struct eap_method *eap;
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eap = os_zalloc(sizeof(*eap));
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if (!eap)
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return NULL;
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eap->version = version;
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eap->vendor = vendor;
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eap->method = method;
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eap->name = name;
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return eap;
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}
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int eap_peer_method_register(struct eap_method *method)
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{
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registered_eap_method = method;
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return 0;
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}
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static struct eap_peer_config eap_sim_config = {
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.identity = (u8 *) "1232010000000000",
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.identity_len = 16,
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.password = (u8 *) "90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581",
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.password_len = 65,
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};
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struct eap_peer_config * eap_get_config(struct eap_sm *sm)
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{
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return &eap_sim_config;
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}
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const u8 * eap_get_config_identity(struct eap_sm *sm, size_t *len)
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{
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static const char *id = "1232010000000000";
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*len = os_strlen(id);
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return (const u8 *) id;
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}
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void eap_set_anon_id(struct eap_sm *sm, const u8 *id, size_t len)
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{
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}
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void eap_sm_request_identity(struct eap_sm *sm)
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{
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}
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void eap_sm_request_sim(struct eap_sm *sm, const char *req)
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{
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}
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
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{
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const u8 *pos, *end;
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struct eap_sm *sm;
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void *priv;
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struct eap_method_ret ret;
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unsigned int count = 0;
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wpa_fuzzer_set_debug_level();
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eap_peer_sim_register();
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sm = os_zalloc(sizeof(*sm));
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if (!sm)
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return 0;
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priv = registered_eap_method->init(sm);
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os_memset(&ret, 0, sizeof(ret));
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pos = data;
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end = pos + size;
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while (end - pos > 2 && count < 100) {
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u16 flen;
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struct wpabuf *buf, *req;
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flen = WPA_GET_BE16(pos);
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pos += 2;
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if (end - pos < flen)
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break;
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req = wpabuf_alloc_copy(pos, flen);
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if (!req)
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break;
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wpa_hexdump_buf(MSG_MSGDUMP, "fuzzer - request", req);
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buf = registered_eap_method->process(sm, priv, &ret, req);
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wpa_hexdump_buf(MSG_MSGDUMP, "fuzzer - local response", buf);
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wpabuf_free(req);
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wpabuf_free(buf);
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pos += flen;
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count++;
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}
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registered_eap_method->deinit(sm, priv);
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os_free(registered_eap_method);
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os_free(sm);
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return 0;
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}
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