parent
edfabed069
commit
1e93d77153
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@ -350,11 +350,13 @@ static status_t process_start(private_eap_sim_t *this, eap_payload_t *in,
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{
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/* check if server supports our implementation */
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bool found = FALSE;
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if (data.len > 2)
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{
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/* read actual length first */
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data.len = ntohs(*(u_int16_t*)data.ptr);
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data.len = min(data.len, ntohs(*(u_int16_t*)data.ptr) + 2);
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data = chunk_skip(data, 2);
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chunk_free(&this->version_list);
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this->version_list = chunk_clone(data);
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while (data.len >= this->version.len)
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{
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@ -373,7 +375,7 @@ static status_t process_start(private_eap_sim_t *this, eap_payload_t *in,
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*out = build_payload(this, identifier, SIM_CLIENT_ERROR,
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AT_CLIENT_ERROR_CODE, client_error_unsupported,
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AT_END);
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return FAILED;
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return NEED_MORE;
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}
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break;
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}
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@ -457,24 +459,26 @@ static status_t process_challenge(private_eap_sim_t *this, eap_payload_t *in,
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*out = build_payload(this, identifier, SIM_CLIENT_ERROR,
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AT_CLIENT_ERROR_CODE, client_error_general,
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AT_END);
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return FAILED;
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return NEED_MORE;
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}
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/* get two or three KCs/SRESes from SIM using RANDs */
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kcs = kc = chunk_alloca(rands.len / 2);
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sreses = sres = chunk_alloca(kcs.len / 2);
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sreses = sres = chunk_alloca(rands.len / 4);
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while (rands.len > 0)
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{
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if (this->alg(rands.ptr, RAND_LEN, kc.ptr, &kc.len, sres.ptr, &sres.len))
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int kc_len = kc.len, sres_len = sres.len;
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if (this->alg(rands.ptr, RAND_LEN, kc.ptr, &kc_len, sres.ptr, &sres_len))
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{
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DBG1(DBG_IKE, "unable to get triplets from SIM");
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*out = build_payload(this, identifier, SIM_CLIENT_ERROR,
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AT_CLIENT_ERROR_CODE, client_error_general,
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AT_END);
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return FAILED;
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return NEED_MORE;
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}
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kc = chunk_skip(kc, kc.len);
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sres = chunk_skip(sres, sres.len);
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kc = chunk_skip(kc, kc_len);
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sres = chunk_skip(sres, sres_len);
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rands = chunk_skip(rands, RAND_LEN);
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}
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@ -497,10 +501,13 @@ static status_t process_challenge(private_eap_sim_t *this, eap_payload_t *in,
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prf->get_bytes(prf, chunk_empty, tmp.ptr + tmp.len / 4 * 2);
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prf->get_bytes(prf, chunk_empty, tmp.ptr + tmp.len / 4 * 3);
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prf->destroy(prf);
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chunk_free(&this->k_encr);
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chunk_free(&this->k_auth);
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chunk_free(&this->msk);
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chunk_free(&this->emsk);
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chunk_split(tmp, "aaaa", KENCR_LEN, &this->k_encr, KAUTH_LEN, &this->k_auth,
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MSK_LEN, &this->msk, EMSK_LEN, &this->emsk);
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DBG3(DBG_IKE, "MK %B", &mk);
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DBG3(DBG_IKE, "PRF res %B", &tmp);
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DBG3(DBG_IKE, "K_encr %B", &this->k_encr);
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DBG3(DBG_IKE, "K_auth %B", &this->k_auth);
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DBG3(DBG_IKE, "MSK %B", &this->msk);
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@ -520,7 +527,7 @@ static status_t process_challenge(private_eap_sim_t *this, eap_payload_t *in,
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*out = build_payload(this, identifier, SIM_CLIENT_ERROR,
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AT_CLIENT_ERROR_CODE, client_error_general,
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AT_END);
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return FAILED;
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return NEED_MORE;
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}
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signer->destroy(signer);
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@ -95,7 +95,7 @@ typedef int (*sim_algo_t)(const unsigned char *rand, int rand_length,
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#ifndef SIM_READER_LIB
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/** the library containing the cardreader with the SIM function */
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#define SIM_READER_LIB "/home/martin/strongswan/trunk/src/charon/sa/authenticators/eap/sim_reader/sim_api.so"
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#define SIM_READER_LIB "/root/strongswan-shared/trunk/src/charon/sa/authenticators/eap/sim_reader/sim_api.so"
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#endif /* SIM_READER_LIB */
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#ifndef SIM_READER_ALG
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