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@ -264,34 +264,33 @@ bool hss::gen_auth_info_answer(uint64_t imsi, uint8_t* k_asme, uint8_t* autn, ui
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return false;
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}
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bool ret = false; // FIXME
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switch (ue_ctx->algo) {
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case HSS_ALGO_XOR:
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gen_auth_info_answer_xor(ue_ctx, k_asme, autn, rand, xres);
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break;
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case HSS_ALGO_MILENAGE:
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ret = gen_auth_info_answer_milenage(imsi, k_asme, autn, rand, xres);
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gen_auth_info_answer_milenage(ue_ctx, k_asme, autn, rand, xres);
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break;
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}
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increment_ue_sqn(imsi);
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return ret;
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return true;
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}
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bool hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t* k_asme, uint8_t* autn, uint8_t* rand, uint8_t* xres)
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void hss::gen_auth_info_answer_milenage(hss_ue_ctx_t* ue_ctx, uint8_t* k_asme, uint8_t* autn, uint8_t* rand, uint8_t* xres)
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{
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uint8_t k[16];
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uint8_t amf[2];
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uint8_t opc[16];
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uint8_t sqn[6];
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// Get K, AMF, OPC and SQN
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uint8_t *k = ue_ctx->key;
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uint8_t *amf = ue_ctx->amf;
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uint8_t *opc = ue_ctx->opc;
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uint8_t *sqn = ue_ctx->sqn;
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// Temp variables
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uint8_t xdout[16];
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uint8_t ck[16];
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uint8_t ik[16];
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uint8_t ak[6];
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uint8_t mac[8];
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if (!get_k_amf_opc_sqn(imsi, k, amf, opc, sqn)) {
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return false;
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}
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gen_rand(rand);
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srslte::security_milenage_f2345(k, opc, rand, xres, ck, ik, ak);
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@ -327,8 +326,9 @@ bool hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t* k_asme, uint8_t*
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}
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m_hss_log->debug_hex(autn, 16, "User AUTN: ");
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set_last_rand(imsi, rand);
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return true;
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// Set last RAND
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memcpy(ue_ctx->last_rand, rand, 16);
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return;
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}
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void hss::gen_auth_info_answer_xor(hss_ue_ctx_t* ue_ctx, uint8_t* k_asme, uint8_t* autn, uint8_t* rand, uint8_t* xres)
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