100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
#define TRACE_MODULE _esm_build
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#include "core_debug.h"
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#include "nas_message.h"
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#include "nas_security.h"
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#include "esm_build.h"
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status_t esm_build_information_request(pkbuf_t **pkbuf, mme_esm_t *esm)
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{
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nas_message_t message;
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mme_ue_t *ue = NULL;
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d_assert(esm, return CORE_ERROR, "Null param");
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ue = esm->ue;
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d_assert(ue, return CORE_ERROR, "Null param");
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memset(&message, 0, sizeof(message));
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message.h.security_header_type =
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NAS_SECURITY_HEADER_INTEGRITY_PROTECTED_AND_CIPHERED;
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message.h.protocol_discriminator = NAS_PROTOCOL_DISCRIMINATOR_EMM;
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message.esm.h.protocol_discriminator = NAS_PROTOCOL_DISCRIMINATOR_ESM;
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message.esm.h.procedure_transaction_identity = esm->pti;
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message.esm.h.message_type = NAS_ESM_INFORMATION_REQUEST;
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d_assert(nas_security_encode(pkbuf, ue, &message) == CORE_OK && *pkbuf,,);
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return CORE_OK;
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}
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status_t esm_build_activate_default_bearer_context(
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pkbuf_t **pkbuf, mme_esm_t *esm)
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{
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nas_message_t message;
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nas_activate_default_eps_bearer_context_request_t
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*activate_default_eps_bearer_context_request =
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&message.esm.activate_default_eps_bearer_context_request;
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nas_eps_quality_of_service_t *eps_qos =
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&activate_default_eps_bearer_context_request->eps_qos;
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nas_access_point_name_t *access_point_name =
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&activate_default_eps_bearer_context_request->access_point_name;
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nas_pdn_address_t *pdn_address =
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&activate_default_eps_bearer_context_request->pdn_address;
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nas_apn_aggregate_maximum_bit_rate_t *apn_ambr =
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&activate_default_eps_bearer_context_request->apn_ambr;
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nas_protocol_configuration_options_t *protocol_configuration_options =
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&activate_default_eps_bearer_context_request
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->protocol_configuration_options;
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mme_ue_t *ue = NULL;
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pdn_t *pdn = NULL;
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d_assert(esm, return CORE_ERROR, "Null param");
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ue = esm->ue;
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d_assert(ue, return CORE_ERROR, "Null param");
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pdn = esm->pdn;
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d_assert(pdn, return CORE_ERROR, "Null param");
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memset(&message, 0, sizeof(message));
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message.esm.h.eps_bearer_identity = esm->ebi;
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message.esm.h.protocol_discriminator = NAS_PROTOCOL_DISCRIMINATOR_ESM;
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message.esm.h.procedure_transaction_identity = esm->pti;
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message.esm.h.message_type =
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NAS_ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST;
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eps_qos->length = 5;
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eps_qos->qci = pdn->qci;
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eps_qos->ul_mbr = 0xff;
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eps_qos->dl_mbr = 0xff;
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eps_qos->ul_gbr = 0xff;
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eps_qos->dl_gbr = 0xff;
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access_point_name->length = strlen(pdn->apn);
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strcpy(access_point_name->apn, pdn->apn);
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pdn_address->length = PAA_IPV4_LEN;
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memcpy(&pdn_address->paa, &pdn->paa, pdn_address->length);
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activate_default_eps_bearer_context_request->presencemask |=
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NAS_ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APN_AMBR_PRESENT;
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apn_ambr->length = 6;
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apn_ambr->dl_apn_ambr_extended2 = 4;
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apn_ambr->ul_apn_ambr_extended2 = 4;
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if (esm->pgw_pco_len)
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{
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activate_default_eps_bearer_context_request->presencemask |=
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NAS_ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT;
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protocol_configuration_options->length = esm->pgw_pco_len;
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memcpy(protocol_configuration_options->buffer,
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esm->pgw_pco, protocol_configuration_options->length);
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}
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d_assert(nas_plain_encode(pkbuf, &message) == CORE_OK && *pkbuf,,);
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return CORE_OK;
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}
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