113 lines
3.6 KiB
C
113 lines
3.6 KiB
C
#define TRACE_MODULE _pgw_s5c_handler
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#include "core_debug.h"
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#include "core_lib.h"
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#include "gtp_types.h"
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#include "pgw_event.h"
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#include "pgw_context.h"
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#include "pgw_gtp_path.h"
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#include "pgw_s5c_handler.h"
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void pgw_s5c_handle_create_session_request(
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gtp_xact_t *xact, pgw_sess_t *sess, gtp_create_session_request_t *req)
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{
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gtp_f_teid_t *sgw_s5c_teid, *sgw_s5u_teid;
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pgw_bearer_t *bearer = NULL;
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gtp_bearer_qos_t bearer_qos;
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gtp_ambr_t *ambr = NULL;
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gtp_uli_t uli;
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d_assert(xact, return, "Null param");
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d_assert(sess, return, "Null param");
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d_assert(req, return, "Null param");
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bearer = pgw_default_bearer_in_sess(sess);
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d_assert(bearer, return, "Null param");
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if (req->sender_f_teid_for_control_plane.presence == 0)
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{
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d_error("No IMSI");
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return;
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}
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if (req->sender_f_teid_for_control_plane.presence == 0)
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{
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d_error("No TEID");
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return;
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}
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if (req->bearer_contexts_to_be_created.presence == 0)
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{
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d_error("No Bearer");
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return;
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}
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if (req->bearer_contexts_to_be_created.eps_bearer_id.presence == 0)
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{
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d_error("No EPS Bearer ID");
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return;
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}
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if (req->bearer_contexts_to_be_created.bearer_level_qos.presence == 0)
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{
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d_error("No EPS Bearer QoS");
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return;
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}
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if (req->bearer_contexts_to_be_created.s5_s8_u_sgw_f_teid.presence == 0)
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{
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d_error("No TEID");
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return;
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}
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if (req->user_location_information.presence == 0)
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{
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d_error("No User Location Inforamtion");
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return;
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}
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/* Set IMSI */
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sess->imsi_len = req->imsi.len;
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memcpy(sess->imsi, req->imsi.data, sess->imsi_len);
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core_buffer_to_bcd(sess->imsi, sess->imsi_len, sess->imsi_bcd);
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/* Control Plane(DL) : SGW-S5C */
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sgw_s5c_teid = req->sender_f_teid_for_control_plane.data;
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sess->sgw_s5c_teid = ntohl(sgw_s5c_teid->teid);
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sess->sgw_s5c_addr = sgw_s5c_teid->ipv4_addr;
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/* Control Plane(DL) : SGW-S5U */
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sgw_s5u_teid = req->bearer_contexts_to_be_created.s5_s8_u_sgw_f_teid.data;
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bearer->sgw_s5u_teid = ntohl(sgw_s5u_teid->teid);
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bearer->sgw_s5u_addr = sgw_s5u_teid->ipv4_addr;
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d_assert(gtp_parse_bearer_qos(&bearer_qos,
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&req->bearer_contexts_to_be_created.bearer_level_qos) ==
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req->bearer_contexts_to_be_created.bearer_level_qos.len, return,);
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sess->pdn.qos.qci = bearer_qos.qci;
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sess->pdn.qos.arp.priority_level = bearer_qos.priority_level;
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sess->pdn.qos.arp.pre_emption_capability =
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bearer_qos.pre_emption_capability;
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sess->pdn.qos.arp.pre_emption_vulnerability =
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bearer_qos.pre_emption_vulnerability;
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/* Set AMBR if available */
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if (req->aggregate_maximum_bit_rate.presence)
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{
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ambr = req->aggregate_maximum_bit_rate.data;
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sess->pdn.ambr.downlink = ntohl(ambr->downlink);
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sess->pdn.ambr.uplink = ntohl(ambr->uplink);
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}
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/* Set User Location Information */
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d_assert(gtp_parse_uli(&uli, &req->user_location_information) ==
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req->user_location_information.len, return,);
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memcpy(&sess->tai.plmn_id, &uli.tai.plmn_id, sizeof(uli.tai.plmn_id));
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sess->tai.tac = uli.tai.tac;
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memcpy(&sess->e_cgi.plmn_id, &uli.e_cgi.plmn_id, sizeof(uli.e_cgi.plmn_id));
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sess->e_cgi.cell_id = uli.e_cgi.cell_id;
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d_trace(3, "[GTP] Create Session Reqeust : "
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"SGW[%d] --> PGW[%d]\n", sess->sgw_s5c_teid, sess->pgw_s5c_teid);
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}
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void pgw_s5c_handle_delete_session_request(
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gtp_xact_t *xact, pgw_sess_t *sess, gtp_delete_session_request_t *req)
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{
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}
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