open5gs/src/mme/esm_handler.c

58 lines
2.0 KiB
C

#define TRACE_MODULE _esm_handler
#include "core_debug.h"
#include "nas_message.h"
#include "mme_context.h"
#include "mme_event.h"
#include "mme_s11_build.h"
#include "mme_s11_path.h"
void esm_handle_pdn_connectivity_request(mme_esm_t *esm,
nas_pdn_connectivity_request_t *pdn_connectivity_request)
{
#if 0 /* TODO */
printf("request type = 0x%x, %d\n",
pdn_connectivity_request->request_type.request_type,
pdn_connectivity_request->request_type.pdn_type);
printf("precesce = 0x%x\n", pdn_connectivity_request->presencemask);
printf("flag = 0x%x\n",
pdn_connectivity_request->esm_information_transfer_flag.security_protected_required);
#endif
}
void esm_handle_information_response(mme_esm_t *esm,
nas_esm_information_response_t *esm_information_response)
{
pkbuf_t *pkbuf = NULL;
status_t rv;
if (esm_information_response->presencemask &
NAS_ESM_INFORMATION_RESPONSE_ACCESS_POINT_NAME_PRESENT)
{
esm->pdn = mme_pdn_find_by_apn(
esm_information_response->access_point_name.apn);
d_assert(esm->pdn, return, "No PDN Context[APN:%s])",
esm_information_response->access_point_name.apn);
}
if (esm_information_response->presencemask &
NAS_ESM_INFORMATION_RESPONSE_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT)
{
nas_protocol_configuration_options_t *protocol_configuration_options =
&esm_information_response->protocol_configuration_options;
esm->pco_len = protocol_configuration_options->length;
d_assert(esm->pco_len <= MAX_PCO_LEN, return,
"length(%d) exceeds MAX:%d", esm->pco_len, MAX_PCO_LEN);
memcpy(esm->pco, protocol_configuration_options->buffer, esm->pco_len);
}
rv = mme_s11_build_create_session_req(&pkbuf, esm);
d_assert(rv == CORE_OK, return, "S11 build error");
rv = mme_s11_send_to_sgw(esm->sgw,
GTP_CREATE_SESSION_REQUEST_TYPE, 0, pkbuf);
d_assert(rv == CORE_OK, return, "S11 send error");
}