mirror of https://github.com/PentHertz/srsLTE.git
Finished separating the pack/unpack from the main S1AP class.
This commit is contained in:
parent
f73d295ae0
commit
0dbddb8a4b
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@ -37,22 +37,13 @@
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#include <netinet/sctp.h>
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#include <unistd.h>
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#include "mme/s1ap_common.h"
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#include "mme/s1ap_mngmt_proc.h"
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namespace srsepc{
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const uint16_t S1MME_PORT = 36412;
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typedef struct{
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uint8_t mme_code;
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uint16_t mme_group;
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uint16_t tac; // 16-bit tac
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uint16_t mcc; // BCD-coded with 0xF filler
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uint16_t mnc; // BCD-coded with 0xF filler
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std::string mme_bind_addr;
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std::string mme_name;
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} s1ap_args_t;
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class s1ap
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{
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public:
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@ -73,18 +64,24 @@ public:
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bool send_s1_setup_failure(struct sctp_sndrcvinfo *enb_sri);
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bool send_s1_setup_response(struct sctp_sndrcvinfo *enb_sri);
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void print_enb_ctx_info(const enb_ctx_t &enb_ctx);
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private:
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s1ap_args_t m_s1ap_args;
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uint32_t m_plmn;
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/*
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uint8_t m_mme_code;
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uint16_t m_mme_group;
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uint16_t m_tac; // 16-bit tac
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uint16_t m_mcc; // BCD-coded with 0xF filler
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uint16_t m_mnc; // BCD-coded with 0xF filler
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uint32_t m_plmn;
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std::string m_mme_bind_addr;
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std::string m_mme_name;
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*/
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srslte::log *m_s1ap_log;
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int m_s1mme;
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@ -28,25 +28,10 @@
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#include "srslte/asn1/liblte_s1ap.h"
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#include "srslte/common/common.h"
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#include "mme/s1ap_common.h"
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namespace srsepc{
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static const uint8_t MAX_TA=255;
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static const uint8_t MAX_BPLMN=6;
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typedef struct{
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bool enb_name_present;
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uint32_t enb_id;
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uint8_t enb_name[150];
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uint16_t mcc, mnc;
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uint32_t plmn;
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uint8_t nof_supported_ta;
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uint16_t tac[MAX_TA];
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uint8_t nof_supported_bplmns[MAX_TA];
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uint16_t bplmns[MAX_TA][MAX_BPLMN];
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LIBLTE_S1AP_PAGINGDRX_ENUM drx;
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struct sctp_sndrcvinfo sri;
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} enb_ctx_t;
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class s1ap_mngmt_proc
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{
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public:
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@ -55,7 +40,7 @@ public:
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bool unpack_s1_setup_request(LIBLTE_S1AP_MESSAGE_S1SETUPREQUEST_STRUCT *msg, enb_ctx_t* enb_ctx);
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bool pack_s1_setup_failure(LIBLTE_S1AP_CAUSEMISC_ENUM cause, srslte::byte_buffer_t* msg);
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bool pack_s1_setup_response(LIBLTE_S1AP_S1AP_PDU_STRUCT *pdu);
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bool pack_s1_setup_response(s1ap_args_t s1ap_args, srslte::byte_buffer_t* msg);
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};
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} //namespace srsepc
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@ -43,6 +43,7 @@ s1ap::~s1ap()
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int
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s1ap::init(s1ap_args_t s1ap_args, srslte::log *s1ap_log)
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{
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/*
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m_mme_code = s1ap_args.mme_code ;
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m_mme_group = s1ap_args.mme_group;
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m_tac = s1ap_args.tac;
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@ -50,8 +51,10 @@ s1ap::init(s1ap_args_t s1ap_args, srslte::log *s1ap_log)
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m_mnc = s1ap_args.mnc;
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m_mme_bind_addr = s1ap_args.mme_bind_addr;
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m_mme_name = std::string("srsmme0");
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*/
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m_s1ap_args = s1ap_args;
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srslte::s1ap_mccmnc_to_plmn(m_mcc, m_mnc, &m_plmn);
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srslte::s1ap_mccmnc_to_plmn(s1ap_args.mcc, s1ap_args.mnc, &m_plmn);
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m_s1ap_log = s1ap_log;
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@ -101,7 +104,7 @@ s1ap::enb_listen()
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//S1-MME bind
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bzero(&s1mme_addr, sizeof(s1mme_addr));
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s1mme_addr.sin_family = AF_INET;
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inet_pton(AF_INET, m_mme_bind_addr.c_str(), &(s1mme_addr.sin_addr) );
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inet_pton(AF_INET, m_s1ap_args.mme_bind_addr.c_str(), &(s1mme_addr.sin_addr) );
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s1mme_addr.sin_port = htons(S1MME_PORT);
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err = bind(sock_fd, (struct sockaddr*) &s1mme_addr, sizeof (s1mme_addr));
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if (err != 0){
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@ -182,6 +185,37 @@ s1ap::handle_s1_setup_request(LIBLTE_S1AP_MESSAGE_S1SETUPREQUEST_STRUCT *msg, st
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}
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//Log S1 Setup Request Info
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print_enb_ctx_info(enb_ctx);
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//Check matching PLMNs
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if(enb_ctx.plmn!=m_plmn){
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m_s1ap_log->console("S1 Setup Failure - Unkown PLMN\n");
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m_s1ap_log->info("S1 Setup Failure - Unkown PLMN\n");
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m_s1ap_mngmt_proc.pack_s1_setup_failure(LIBLTE_S1AP_CAUSEMISC_UNKNOWN_PLMN,&reply_msg);
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}
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else{
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m_s1ap_log->console("S1 Setup Response\n");
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m_s1ap_log->info("S1 Setup Response\n");
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m_s1ap_mngmt_proc.pack_s1_setup_response(m_s1ap_args, &reply_msg);
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}
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//Send Reply to eNB
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ssize_t n_sent = sctp_send(m_s1mme,reply_msg.msg, reply_msg.N_bytes, enb_sri, 0);
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if(n_sent == -1)
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{
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m_s1ap_log->console("Failed to send S1 Setup Setup Reply");
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return false;
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}
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return true;
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}
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void
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s1ap::print_enb_ctx_info(const enb_ctx_t &enb_ctx)
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{
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std::string mnc_str, mcc_str;
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if(enb_ctx.enb_name_present)
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{
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m_s1ap_log->console("S1 Setup Request - eNB Name: %s, eNB id: 0x%x\n", enb_ctx.enb_name, enb_ctx.enb_id);
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@ -203,99 +237,9 @@ s1ap::handle_s1_setup_request(LIBLTE_S1AP_MESSAGE_S1SETUPREQUEST_STRUCT *msg, st
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m_s1ap_log->info("S1 Setup Request - TAC %d, B-PLMN %d\n",enb_ctx.tac[i],enb_ctx.bplmns[i][j]);
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m_s1ap_log->console("S1 Setup Request - TAC %d, B-PLMN %d\n",enb_ctx.tac[i],enb_ctx.bplmns[i][j]);
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}
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}
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}
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m_s1ap_log->console("S1 Setup Request - Paging DRX %d\n",enb_ctx.drx);
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//Check matching PLMNs
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if(enb_ctx.plmn!=m_plmn){
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m_s1ap_log->console("S1 Setup Failure - Unkown PLMN\n");
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m_s1ap_log->info("S1 Setup Failure - Unkown PLMN\n");
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m_s1ap_mngmt_proc.pack_s1_setup_failure(LIBLTE_S1AP_CAUSEMISC_UNKNOWN_PLMN,&reply_msg);
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ssize_t n_sent = sctp_send(m_s1mme,reply_msg.msg, reply_msg.N_bytes, enb_sri, 0); //FIXME
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}
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else{
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m_s1ap_log->console("S1 Setup Response\n");
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m_s1ap_log->info("S1 Setup Response\n");
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//m_s1ap_mngmt_proc.pack_s1_setup_response(,&reply_msg);
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send_s1_setup_response(enb_sri);
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}
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//Send Reply to eNB
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/*
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ssize_t n_sent = sctp_send(m_s1mme,msg.msg, msg.N_bytes, enb_sri, 0);
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if(n_sent == -1)
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{
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m_s1ap_log->console("Failed to send S1 Setup Setup Reply");
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return false;
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}
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*/
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return true;
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}
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bool
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s1ap::send_s1_setup_response(struct sctp_sndrcvinfo *enb_sri)
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{
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srslte::byte_buffer_t msg;
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LIBLTE_S1AP_S1AP_PDU_STRUCT pdu;
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bzero(&pdu, sizeof(LIBLTE_S1AP_S1AP_PDU_STRUCT));
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pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_SUCCESSFULOUTCOME;
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LIBLTE_S1AP_SUCCESSFULOUTCOME_STRUCT *succ = &pdu.choice.successfulOutcome;
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succ->procedureCode = LIBLTE_S1AP_PROC_ID_S1SETUP;
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succ->criticality = LIBLTE_S1AP_CRITICALITY_IGNORE;
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succ->choice_type = LIBLTE_S1AP_SUCCESSFULOUTCOME_CHOICE_S1SETUPRESPONSE;
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LIBLTE_S1AP_MESSAGE_S1SETUPRESPONSE_STRUCT* s1_resp=(LIBLTE_S1AP_MESSAGE_S1SETUPRESPONSE_STRUCT*)&succ->choice;
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s1_resp->ext=false;
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//MME Name
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s1_resp->MMEname_present=true;
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s1_resp->MMEname.ext=false;
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s1_resp->MMEname.n_octets=m_mme_name.length();
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memcpy(s1_resp->MMEname.buffer,m_mme_name.c_str(),m_mme_name.length());
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//Served GUMEIs
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s1_resp->ServedGUMMEIs.len=1;//TODO Only one served GUMMEI supported
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LIBLTE_S1AP_SERVEDGUMMEISITEM_STRUCT *serv_gummei = &s1_resp->ServedGUMMEIs.buffer[0];
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serv_gummei->ext=false;
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//serv_gummei->iE_Extensions=false;
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uint32_t plmn=0;
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srslte::s1ap_mccmnc_to_plmn(m_mcc, m_mnc, &plmn);
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plmn=htonl(plmn);
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serv_gummei->servedPLMNs.len = 1; //Only one PLMN supported
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serv_gummei->servedPLMNs.buffer[0].buffer[0]=((uint8_t*)&plmn)[1];
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serv_gummei->servedPLMNs.buffer[0].buffer[1]=((uint8_t*)&plmn)[2];
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serv_gummei->servedPLMNs.buffer[0].buffer[2]=((uint8_t*)&plmn)[3];
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serv_gummei->servedGroupIDs.len=1; //LIBLTE_S1AP_SERVEDGROUPIDS_STRUCT
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uint16_t tmp=htons(m_mme_group);
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serv_gummei->servedGroupIDs.buffer[0].buffer[0]=((uint8_t*)&tmp)[0];
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serv_gummei->servedGroupIDs.buffer[0].buffer[1]=((uint8_t*)&tmp)[1];
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serv_gummei->servedMMECs.len=1; //Only one MMEC served
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serv_gummei->servedMMECs.buffer[0].buffer[0]=m_mme_code;
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//Relative MME Capacity
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s1_resp->RelativeMMECapacity.RelativeMMECapacity=255;
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//Relay Unsupported
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s1_resp->MMERelaySupportIndicator_present=false;
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liblte_s1ap_pack_s1ap_pdu(&pdu, (LIBLTE_BYTE_MSG_STRUCT*)&msg);
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ssize_t n_sent = sctp_send(m_s1mme,msg.msg, msg.N_bytes, enb_sri, 0);
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if(n_sent == -1)
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{
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m_s1ap_log->console("Failed to send S1 Setup Failure");
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return false;
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}
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return true;
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return;
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}
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} //namespace srsepc
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@ -123,16 +123,15 @@ s1ap_mngmt_proc::pack_s1_setup_failure(LIBLTE_S1AP_CAUSEMISC_ENUM cause, srslte:
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bool
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s1ap_mngmt_proc::pack_s1_setup_response(LIBLTE_S1AP_S1AP_PDU_STRUCT *pdu)
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s1ap_mngmt_proc::pack_s1_setup_response(s1ap_args_t s1ap_args, srslte::byte_buffer_t *msg)
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{
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/*
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srslte::byte_buffer_t msg;
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//LIBLTE_S1AP_S1AP_PDU_STRUCT pdu;
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bzero(pdu, sizeof(LIBLTE_S1AP_S1AP_PDU_STRUCT));
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pdu->choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_SUCCESSFULOUTCOME;
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LIBLTE_S1AP_S1AP_PDU_STRUCT pdu;
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bzero(&pdu, sizeof(LIBLTE_S1AP_S1AP_PDU_STRUCT));
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LIBLTE_S1AP_SUCCESSFULOUTCOME_STRUCT *succ = &pdu->choice.successfulOutcome;
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pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_SUCCESSFULOUTCOME;
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LIBLTE_S1AP_SUCCESSFULOUTCOME_STRUCT *succ = &pdu.choice.successfulOutcome;
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succ->procedureCode = LIBLTE_S1AP_PROC_ID_S1SETUP;
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succ->criticality = LIBLTE_S1AP_CRITICALITY_IGNORE;
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succ->choice_type = LIBLTE_S1AP_SUCCESSFULOUTCOME_CHOICE_S1SETUPRESPONSE;
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@ -144,8 +143,8 @@ s1ap_mngmt_proc::pack_s1_setup_response(LIBLTE_S1AP_S1AP_PDU_STRUCT *pdu)
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//MME Name
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s1_resp->MMEname_present=true;
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s1_resp->MMEname.ext=false;
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s1_resp->MMEname.n_octets=m_mme_name.length();
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memcpy(s1_resp->MMEname.buffer,m_mme_name.c_str(),m_mme_name.length());
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s1_resp->MMEname.n_octets=s1ap_args.mme_name.length();
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memcpy(s1_resp->MMEname.buffer,s1ap_args.mme_name.c_str(),s1ap_args.mme_name.length());
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//Served GUMEIs
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s1_resp->ServedGUMMEIs.len=1;//TODO Only one served GUMMEI supported
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@ -155,7 +154,7 @@ s1ap_mngmt_proc::pack_s1_setup_response(LIBLTE_S1AP_S1AP_PDU_STRUCT *pdu)
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//serv_gummei->iE_Extensions=false;
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uint32_t plmn=0;
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srslte::s1ap_mccmnc_to_plmn(m_mcc, m_mnc, &plmn);
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srslte::s1ap_mccmnc_to_plmn(s1ap_args.mcc, s1ap_args.mnc, &plmn);
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plmn=htonl(plmn);
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serv_gummei->servedPLMNs.len = 1; //Only one PLMN supported
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serv_gummei->servedPLMNs.buffer[0].buffer[0]=((uint8_t*)&plmn)[1];
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@ -163,12 +162,12 @@ s1ap_mngmt_proc::pack_s1_setup_response(LIBLTE_S1AP_S1AP_PDU_STRUCT *pdu)
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serv_gummei->servedPLMNs.buffer[0].buffer[2]=((uint8_t*)&plmn)[3];
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serv_gummei->servedGroupIDs.len=1; //LIBLTE_S1AP_SERVEDGROUPIDS_STRUCT
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uint16_t tmp=htons(m_mme_group);
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uint16_t tmp=htons(s1ap_args.mme_group);
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serv_gummei->servedGroupIDs.buffer[0].buffer[0]=((uint8_t*)&tmp)[0];
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serv_gummei->servedGroupIDs.buffer[0].buffer[1]=((uint8_t*)&tmp)[1];
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serv_gummei->servedMMECs.len=1; //Only one MMEC served
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serv_gummei->servedMMECs.buffer[0].buffer[0]=m_mme_code;
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serv_gummei->servedMMECs.buffer[0].buffer[0]=s1ap_args.mme_code;
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//Relative MME Capacity
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s1_resp->RelativeMMECapacity.RelativeMMECapacity=255;
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//Relay Unsupported
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s1_resp->MMERelaySupportIndicator_present=false;
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liblte_s1ap_pack_s1ap_pdu(pdu, (LIBLTE_BYTE_MSG_STRUCT*)&msg);
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*/
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liblte_s1ap_pack_s1ap_pdu(&pdu, (LIBLTE_BYTE_MSG_STRUCT*)msg);
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return true;
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}
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