First compiling (and leak-free) RANAP message generation functions
encoding correctness still needs to be verified at this point. At least they generate some binary output without failing somewhere earlier in the encoding process - and they don't leave any leaked memory behind, see talloc_report() at the end of test-ranap.c:main().
This commit is contained in:
parent
fcabec3665
commit
f8db61b554
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@ -8,7 +8,7 @@ COMMON_LDADD = -lsctp
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bin_PROGRAMS = hnbgw
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hnbgw_SOURCES = hnbap_encoder.c hnbap_decoder.c rua_encoder.c rua_decoder.c ranap_common.c rua_common.c hnbap_common.c iu_helpers.c asn1helpers.c hnbgw.c hnbgw_hnbap.c hnbgw_rua.c hnbgw_ranap.c ranap_decoder.c ranap_encoder.c
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hnbgw_SOURCES = hnbap_encoder.c hnbap_decoder.c rua_encoder.c rua_decoder.c ranap_common.c rua_common.c hnbap_common.c iu_helpers.c asn1helpers.c hnbgw.c hnbgw_hnbap.c hnbgw_rua.c hnbgw_ranap.c ranap_decoder.c ranap_encoder.c ranap_msg_factory.c
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hnbgw_LDADD = $(OSMOCORE_LIBS) $(OSMOVTY_LIBS) $(OSMOGSM_LIBS) $(ASN1C_LIBS) $(COMMON_LDADD) hnbap/libosmo-asn1-hnbap.a rua/libosmo-asn1-rua.a ranap/libosmo-asn1-ranap.a
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@ -2,6 +2,7 @@
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#include <unistd.h>
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#include "asn_system.h"
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#include "BIT_STRING.h"
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#include "OCTET_STRING.h"
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@ -0,0 +1,625 @@
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/* high-level RANAP messsage generation code */
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/* (C) 2015 by Harald Welte <laforge@gnumonks.org>
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <osmocom/core/utils.h>
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#include <osmocom/core/msgb.h>
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#include "asn1helpers.h"
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#include "iu_helpers.h"
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#include "ranap_common.h"
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#include "ranap_ies_defs.h"
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#include "ranap_msg_factory.h"
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#include "hnbgw.h"
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/*! \brief allocate a new long and assing a value to it */
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static long *new_long(long in)
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{
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long *out = CALLOC(1, sizeof(long));
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*out = in;
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return out;
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}
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/*! \brief generate RANAP DIRECT TRANSFER message */
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struct msgb *ranap_new_msg_dt(uint8_t sapi, const uint8_t *nas, unsigned int nas_len)
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{
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RANAP_DirectTransferIEs_t ies;
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RANAP_DirectTransfer_t dt;
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struct msgb *msg;
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int rc;
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memset(&ies, 0, sizeof(ies));
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memset(&dt, 0, sizeof(dt));
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/* only SAPI optional field shall be present for CN->RNC */
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ies.presenceMask = DIRECTTRANSFERIES_RANAP_SAPI_PRESENT;
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if (sapi == 3)
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ies.sapi = RANAP_SAPI_sapi_3;
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else
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ies.sapi = RANAP_SAPI_sapi_0;
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ies.nas_pdu.buf = (uint8_t *) nas;
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ies.nas_pdu.size = nas_len;
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/* ies -> dt */
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rc = ranap_encode_directtransferies(&dt, &ies);
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/* dt -> msg */
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msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_DirectTransfer,
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RANAP_Criticality_reject,
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&asn_DEF_RANAP_DirectTransfer,
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&dt);
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/* release dynamic allocations attached to dt */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_DirectTransfer, &dt);
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return msg;
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}
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static const enum RANAP_IntegrityProtectionAlgorithm ip_alg[2] = {
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RANAP_IntegrityProtectionAlgorithm_standard_UMTS_integrity_algorithm_UIA1,
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RANAP_IntegrityProtectionAlgorithm_standard_UMTS_integrity_algorithm_UIA2,
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};
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static const RANAP_EncryptionAlgorithm_t enc_alg[2] = {
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RANAP_EncryptionAlgorithm_standard_UMTS_encryption_algorith_UEA1,
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RANAP_EncryptionAlgorithm_standard_UMTS_encryption_algorithm_UEA2,
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};
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/*! \brief generate RANAP SECURITY MODE COMMAND message */
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struct msgb *ranap_new_msg_sec_mod_cmd(const uint8_t *ik, const uint8_t *ck)
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{
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RANAP_SecurityModeCommandIEs_t ies;
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RANAP_SecurityModeCommand_t out;
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struct msgb *msg;
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int i, rc;
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memset(&ies, 0, sizeof(ies));
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memset(&out, 0, sizeof(out));
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ies.presenceMask = SECURITYMODECOMMANDIES_RANAP_ENCRYPTIONINFORMATION_PRESENT;
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for (i = 0; i < ARRAY_SIZE(ip_alg); i++) {
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/* needs to be dynamically allocated, as
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* SET_OF_free() will call FREEMEM() on it */
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RANAP_IntegrityProtectionAlgorithm_t *alg = CALLOC(1, sizeof(*alg));
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*alg = ip_alg[i];
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ASN_SEQUENCE_ADD(&ies.integrityProtectionInformation.permittedAlgorithms, alg);
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}
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BIT_STRING_fromBuf(&ies.integrityProtectionInformation.key, ik, 16*8);
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if (ck) {
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for (i = 0; i < ARRAY_SIZE(ip_alg); i++) {
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/* needs to be dynamically allocated, as
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* SET_OF_free() will call FREEMEM() on it */
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RANAP_EncryptionAlgorithm_t *alg = CALLOC(1, sizeof(*alg));
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*alg = enc_alg[i];
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ASN_SEQUENCE_ADD(&ies.encryptionInformation.permittedAlgorithms, alg);
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}
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BIT_STRING_fromBuf(&ies.encryptionInformation.key, ck, 16*8);
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}
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ies.keyStatus = RANAP_KeyStatus_new; /* FIXME */
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/* ies -> out */
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rc = ranap_encode_securitymodecommandies(&out, &ies);
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/* release dynamic allocations attached to ies */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_IntegrityProtectionInformation, &ies.integrityProtectionInformation);
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_EncryptionInformation, &ies.encryptionInformation);
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/* out -> msg */
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msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_SecurityModeControl,
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RANAP_Criticality_reject,
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&asn_DEF_RANAP_SecurityModeCommand,
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&out);
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/* release dynamic allocations attached to out */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_SecurityModeCommand, &out);
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return msg;
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}
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/*! \brief generate RANAP COMMON ID message */
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struct msgb *ranap_new_msg_common_id(const char *imsi)
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{
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RANAP_CommonID_IEs_t ies;
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RANAP_CommonID_t out;
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struct msgb *msg;
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int rc;
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memset(&ies, 0, sizeof(ies));
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memset(&out, 0, sizeof(out));
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if (imsi) {
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uint8_t *imsi_buf = CALLOC(1, 16);
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rc = encode_iu_imsi(imsi_buf, 16, imsi);
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ies.permanentNAS_UE_ID.present = RANAP_PermanentNAS_UE_ID_PR_iMSI;
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ies.permanentNAS_UE_ID.choice.iMSI.buf = imsi_buf;
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ies.permanentNAS_UE_ID.choice.iMSI.size = rc;
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} else
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ies.permanentNAS_UE_ID.present = RANAP_PermanentNAS_UE_ID_PR_NOTHING;
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/* ies -> out */
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rc = ranap_encode_commonid_ies(&out, &ies);
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/* release dynamic allocations attached to ies */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_PermanentNAS_UE_ID, &ies.permanentNAS_UE_ID);
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if (rc < 0)
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return NULL;
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/* out -> msg */
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msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_CommonID,
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RANAP_Criticality_ignore,
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&asn_DEF_RANAP_CommonID,
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&out);
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/* release dynamic allocations attached to out */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_CommonID, &out);
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return msg;
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}
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/*! \brief generate RANAP IU RELEASE COMMAND message */
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struct msgb *ranap_new_msg_iu_rel_cmd(const RANAP_Cause_t *cause_in)
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{
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RANAP_Iu_ReleaseCommandIEs_t ies;
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RANAP_Iu_ReleaseCommand_t out;
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struct msgb *msg;
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int rc;
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memset(&ies, 0, sizeof(ies));
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memset(&out, 0, sizeof(out));
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memcpy(&ies.cause, cause_in, sizeof(ies.cause));
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/* ies -> out */
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rc = ranap_encode_iu_releasecommandies(&out, &ies);
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if (rc < 0)
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return NULL;
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/* out -> msg */
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msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_Iu_Release,
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RANAP_Criticality_reject,
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&asn_DEF_RANAP_Iu_ReleaseCommand,
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&out);
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/* release dynamic allocations attached to out */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_Iu_ReleaseCommand, &out);
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return msg;
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}
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/*! \brief generate RANAP PAGING COMMAND message */
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struct msgb *ranap_new_msg_paging_cmd(const char *imsi, const uint32_t *tmsi, int is_ps, uint32_t cause)
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{
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RANAP_PagingIEs_t ies;
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RANAP_Paging_t out;
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struct msgb *msg;
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uint8_t *imsi_buf = CALLOC(1, 16);
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int rc;
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memset(&ies, 0, sizeof(ies));
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memset(&out, 0, sizeof(out));
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/* put together the 'ies' */
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if (is_ps)
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ies.cN_DomainIndicator = RANAP_CN_DomainIndicator_ps_domain;
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else
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ies.cN_DomainIndicator = RANAP_CN_DomainIndicator_cs_domain;
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rc = encode_iu_imsi(imsi_buf, 16, imsi);
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ies.permanentNAS_UE_ID.present = RANAP_PermanentNAS_UE_ID_PR_iMSI;
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ies.permanentNAS_UE_ID.choice.iMSI.buf = imsi_buf;
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ies.permanentNAS_UE_ID.choice.iMSI.size = rc;
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if (tmsi) {
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uint32_t *tmsi_buf = CALLOC(1, sizeof(*tmsi_buf));
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*tmsi_buf = *tmsi;
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ies.presenceMask |= PAGINGIES_RANAP_TEMPORARYUE_ID_PRESENT;
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if (is_ps) {
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ies.temporaryUE_ID.present = RANAP_TemporaryUE_ID_PR_p_TMSI;
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ies.temporaryUE_ID.choice.tMSI.buf = tmsi_buf;
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ies.temporaryUE_ID.choice.tMSI.size = sizeof(*tmsi_buf);
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} else {
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ies.temporaryUE_ID.present = RANAP_TemporaryUE_ID_PR_tMSI;
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ies.temporaryUE_ID.choice.p_TMSI.buf = tmsi_buf;
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ies.temporaryUE_ID.choice.p_TMSI.size = sizeof(*tmsi_buf);
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}
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}
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if (cause) {
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ies.presenceMask |= PAGINGIES_RANAP_PAGINGCAUSE_PRESENT;
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ies.pagingCause = cause;
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}
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/* ies -> out */
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rc = ranap_encode_pagingies(&out, &ies);
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/* release dynamic allocation attached to ies */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_PermanentNAS_UE_ID, &ies.permanentNAS_UE_ID);
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_TemporaryUE_ID, &ies.temporaryUE_ID);
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if (rc < 0)
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return NULL;
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/* out -> msg */
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msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_Paging,
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RANAP_Criticality_reject,
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&asn_DEF_RANAP_Paging,
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&out);
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/* release dynamic allocations attached to out */
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_Paging, &out);
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return msg;
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}
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static RANAP_SDU_ErrorRatio_t *new_sdu_error_ratio(long mantissa, long exponent)
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{
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RANAP_SDU_ErrorRatio_t *err = CALLOC(1, sizeof(*err));
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err->mantissa = mantissa;
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err->exponent = exponent;
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return err;
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}
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static RANAP_SDU_FormatInformationParameterItem_t *
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new_format_info_pars(long sdu_size)
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{
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RANAP_SDU_FormatInformationParameterItem_t *fmti = CALLOC(1, sizeof(*fmti));
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fmti->subflowSDU_Size = new_long(sdu_size);
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return fmti;
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}
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enum sdu_par_profile {
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SDUPAR_P_VOICE0,
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SDUPAR_P_VOICE1,
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SDUPAR_P_VOICE2,
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SDUPAR_P_DATA,
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};
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/* See Chapter 5 of TS 26.102 */
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static RANAP_SDU_ParameterItem_t *new_sdu_par_item(enum sdu_par_profile profile)
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{
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RANAP_SDU_ParameterItem_t *sdui = CALLOC(1, sizeof(*sdui));
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RANAP_SDU_FormatInformationParameters_t *fmtip = CALLOC(1, sizeof(*fmtip));
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RANAP_SDU_FormatInformationParameterItem_t *fmti;
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switch (profile) {
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case SDUPAR_P_VOICE0:
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sdui->sDU_ErrorRatio = new_sdu_error_ratio(1, 5);
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sdui->residualBitErrorRatio.mantissa = 1;
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sdui->residualBitErrorRatio.exponent = 6;
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sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_yes;
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sdui->sDU_FormatInformationParameters = fmtip;
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fmti = new_format_info_pars(81);
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ASN_SEQUENCE_ADD(fmtip, fmti);
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fmti = new_format_info_pars(39);
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ASN_SEQUENCE_ADD(fmtip, fmti);
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/* FIXME: could be 10 SDU descriptors for AMR! */
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break;
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case SDUPAR_P_VOICE1:
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sdui->residualBitErrorRatio.mantissa = 1;
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sdui->residualBitErrorRatio.exponent = 3;
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sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_no_error_detection_consideration;
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sdui->sDU_FormatInformationParameters = fmtip;
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fmti = new_format_info_pars(103);
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ASN_SEQUENCE_ADD(fmtip, fmti);
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fmti = new_format_info_pars(0);
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ASN_SEQUENCE_ADD(fmtip, fmti);
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/* FIXME: could be 10 SDU descriptors for AMR! */
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break;
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case SDUPAR_P_VOICE2:
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sdui->residualBitErrorRatio.mantissa = 5;
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sdui->residualBitErrorRatio.exponent = 3;
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sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_no_error_detection_consideration;
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sdui->sDU_FormatInformationParameters = fmtip;
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fmti = new_format_info_pars(60);
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ASN_SEQUENCE_ADD(fmtip, fmti);
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fmti = new_format_info_pars(0);
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ASN_SEQUENCE_ADD(fmtip, fmti);
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/* FIXME: could be 10 SDU descriptors for AMR! */
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break;
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case SDUPAR_P_DATA:
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sdui->sDU_ErrorRatio = new_sdu_error_ratio(1, 4);
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sdui->residualBitErrorRatio.mantissa = 1;
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sdui->residualBitErrorRatio.exponent = 5;
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sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_no;
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FREEMEM(fmtip);
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break;
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}
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return sdui;
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}
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static RANAP_AllocationOrRetentionPriority_t *
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new_alloc_ret_prio(RANAP_PriorityLevel_t level, int capability, int vulnerability,
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int queueing_allowed)
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{
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RANAP_AllocationOrRetentionPriority_t *arp = CALLOC(1, sizeof(*arp));
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arp->priorityLevel = level;
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if (capability)
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arp->pre_emptionCapability = RANAP_Pre_emptionCapability_may_trigger_pre_emption;
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else
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arp->pre_emptionCapability = RANAP_Pre_emptionCapability_shall_not_trigger_pre_emption;
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if (vulnerability)
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arp->pre_emptionVulnerability = RANAP_Pre_emptionVulnerability_pre_emptable;
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else
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arp->pre_emptionVulnerability = RANAP_Pre_emptionVulnerability_not_pre_emptable;
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if (queueing_allowed)
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arp->queuingAllowed = RANAP_QueuingAllowed_queueing_allowed;
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else
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arp->queuingAllowed = RANAP_QueuingAllowed_queueing_not_allowed;
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return arp;
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}
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/* See Chapter 5 of TS 26.102 */
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static RANAP_RAB_Parameters_t *new_rab_par_voice(void)
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{
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RANAP_RAB_Parameters_t *rab = CALLOC(1, sizeof(*rab));
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RANAP_SDU_ParameterItem_t *sdui;
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rab->trafficClass = RANAP_TrafficClass_conversational;
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rab->rAB_AsymmetryIndicator = RANAP_RAB_AsymmetryIndicator_symmetric_bidirectional;
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ASN_SEQUENCE_ADD(&rab->maxBitrate.list, new_long(12200));
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rab->guaranteedBitRate = CALLOC(1, sizeof(*rab->guaranteedBitRate));
|
||||
ASN_SEQUENCE_ADD(rab->guaranteedBitRate, new_long(12200));
|
||||
rab->deliveryOrder = RANAP_DeliveryOrder_delivery_order_requested;
|
||||
rab->maxSDU_Size = 244;
|
||||
|
||||
sdui = new_sdu_par_item(SDUPAR_P_VOICE0);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
sdui = new_sdu_par_item(SDUPAR_P_VOICE1);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
sdui = new_sdu_par_item(SDUPAR_P_VOICE2);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
|
||||
rab->transferDelay = new_long(80);
|
||||
rab->allocationOrRetentionPriority = new_alloc_ret_prio(RANAP_PriorityLevel_no_priority, 0, 1, 0);
|
||||
|
||||
rab->sourceStatisticsDescriptor = new_long(RANAP_SourceStatisticsDescriptor_speech);
|
||||
|
||||
return rab;
|
||||
}
|
||||
|
||||
static RANAP_RAB_Parameters_t *new_rab_par_data(void)
|
||||
{
|
||||
RANAP_RAB_Parameters_t *rab = CALLOC(1, sizeof(*rab));
|
||||
RANAP_SDU_ParameterItem_t *sdui;
|
||||
|
||||
rab->trafficClass = RANAP_TrafficClass_background;
|
||||
rab->rAB_AsymmetryIndicator = RANAP_RAB_AsymmetryIndicator_asymmetric_bidirectional;
|
||||
|
||||
ASN_SEQUENCE_ADD(&rab->maxBitrate.list, new_long(16000000));
|
||||
ASN_SEQUENCE_ADD(&rab->maxBitrate.list, new_long(8000000));
|
||||
rab->deliveryOrder = RANAP_DeliveryOrder_delivery_order_requested;
|
||||
rab->maxSDU_Size = 8000;
|
||||
|
||||
sdui = new_sdu_par_item(SDUPAR_P_DATA);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
|
||||
rab->allocationOrRetentionPriority = new_alloc_ret_prio(RANAP_PriorityLevel_no_priority, 0, 0, 0);
|
||||
|
||||
/* FIXME: RAB-Parameter-ExtendedMaxBitrateList for 42Mbps? */
|
||||
|
||||
return rab;
|
||||
}
|
||||
|
||||
static RANAP_TransportLayerInformation_t *new_transp_info_rtp(uint32_t ip, uint16_t port)
|
||||
{
|
||||
RANAP_TransportLayerInformation_t *tli = CALLOC(1, sizeof(*tli));
|
||||
uint32_t *ipbuf = CALLOC(1, sizeof(*ipbuf));
|
||||
uint8_t binding_id[4];
|
||||
|
||||
binding_id[0] = port >> 8;
|
||||
binding_id[1] = port & 0xff;
|
||||
binding_id[2] = binding_id[3] = 0;
|
||||
|
||||
asn1_u32_to_bitstring(&tli->transportLayerAddress, ipbuf, htonl(ip));
|
||||
tli->iuTransportAssociation.present = RANAP_IuTransportAssociation_PR_bindingID;
|
||||
OCTET_STRING_fromBuf(&tli->iuTransportAssociation.choice.bindingID,
|
||||
(const char *) binding_id, sizeof(binding_id));
|
||||
|
||||
return tli;
|
||||
}
|
||||
|
||||
static RANAP_TransportLayerInformation_t *new_transp_info_gtp(uint32_t ip, uint32_t tei)
|
||||
{
|
||||
RANAP_TransportLayerInformation_t *tli = CALLOC(1, sizeof(*tli));
|
||||
uint32_t *ipbuf = CALLOC(1, sizeof(*ipbuf));
|
||||
uint32_t binding_buf = htonl(tei);
|
||||
|
||||
asn1_u32_to_bitstring(&tli->transportLayerAddress, ipbuf, htonl(ip));
|
||||
tli->iuTransportAssociation.present = RANAP_IuTransportAssociation_PR_gTP_TEI;
|
||||
OCTET_STRING_fromBuf(&tli->iuTransportAssociation.choice.bindingID,
|
||||
(const char *) &binding_buf, sizeof(binding_buf));
|
||||
|
||||
return tli;
|
||||
}
|
||||
|
||||
static RANAP_UserPlaneInformation_t *new_upi(long mode, uint8_t mode_versions)
|
||||
{
|
||||
RANAP_UserPlaneInformation_t *upi = CALLOC(1, sizeof(*upi));
|
||||
uint16_t *buf = CALLOC(1, sizeof(*buf));
|
||||
|
||||
*buf = mode_versions;
|
||||
|
||||
upi->userPlaneMode = mode;
|
||||
upi->uP_ModeVersions.buf = buf;
|
||||
upi->uP_ModeVersions.size = sizeof(*buf);
|
||||
upi->uP_ModeVersions.bits_unused = 0;
|
||||
|
||||
return upi;
|
||||
}
|
||||
|
||||
|
||||
static void assign_new_ra_id(RANAP_RAB_ID_t *id, uint8_t rab_id)
|
||||
{
|
||||
uint8_t *buf = CALLOC(1, sizeof(*buf));
|
||||
*buf = rab_id << 3;
|
||||
|
||||
id->buf = buf;
|
||||
id->size = 1;
|
||||
id->bits_unused = 0;
|
||||
}
|
||||
|
||||
/*! \brief generate RANAP RAB ASSIGNMENT REQUEST message for CS (voice) */
|
||||
struct msgb *ranap_new_msg_rab_assign_voice(uint8_t rab_id, uint32_t rtp_ip, uint16_t rtp_port)
|
||||
{
|
||||
RANAP_ProtocolIE_FieldPair_t *pair;
|
||||
RANAP_RAB_AssignmentRequestIEs_t ies;
|
||||
RANAP_RAB_AssignmentRequest_t out;
|
||||
struct msgb *msg;
|
||||
int rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
memset(&out, 0, sizeof(out));
|
||||
|
||||
/* only assingnment is present, no release */
|
||||
ies.presenceMask = RAB_ASSIGNMENTREQUESTIES_RANAP_RAB_SETUPORMODIFYLIST_PRESENT;
|
||||
|
||||
/* put together the 'First' part */
|
||||
RANAP_RAB_SetupOrModifyItemFirst_t first;
|
||||
memset(&first, 0, sizeof(first));
|
||||
assign_new_ra_id(&first.rAB_ID, rab_id);
|
||||
//first.nAS_SynchronisationIndicator = FIXME;
|
||||
first.rAB_Parameters = new_rab_par_voice();
|
||||
first.userPlaneInformation = new_upi(RANAP_UserPlaneMode_support_mode_for_predefined_SDU_sizes, 1); /* 2? */
|
||||
first.transportLayerInformation = new_transp_info_rtp(rtp_ip, rtp_port);
|
||||
|
||||
/* put together the 'Second' part */
|
||||
RANAP_RAB_SetupOrModifyItemSecond_t second;
|
||||
memset(&second, 0, sizeof(second));
|
||||
|
||||
/* Build an IE Pair out of first and second part:
|
||||
* (first, second) -> pair */
|
||||
pair = ranap_new_ie_pair(RANAP_ProtocolIE_ID_id_RAB_SetupOrModifyItem,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemFirst, &first,
|
||||
RANAP_Criticality_ignore,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemSecond, &second);
|
||||
|
||||
/* the pair has been made, we can release any of its elements */
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_SetupOrModifyItemFirst, &first);
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_SetupOrModifyItemSecond, &second);
|
||||
|
||||
/* Add the pair to the list of IEs of the RAB ass.req */
|
||||
ASN_SEQUENCE_ADD(&ies.raB_SetupOrModifyList.list, pair);
|
||||
|
||||
/* encode the IEs into the actual assignment request:
|
||||
* ies -> out */
|
||||
rc = ranap_encode_rab_assignmentrequesties(&out, &ies);
|
||||
/* 'out' has been generated, we can now release the input */
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_SetupOrModifyList,
|
||||
&ies.raB_SetupOrModifyList);
|
||||
if (rc < 0)
|
||||
return NULL;
|
||||
|
||||
/* generate an Initiating Mesasage: out -> msg */
|
||||
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_RAB_Assignment,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_RAB_AssignmentRequest, &out);
|
||||
|
||||
/* 'msg' has been generated, we cann now release the input 'out' */
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_AssignmentRequest, &out);
|
||||
|
||||
return msg;
|
||||
}
|
||||
|
||||
/*! \brief generate RANAP RAB ASSIGNMENT REQUEST message for PS (data) */
|
||||
struct msgb *ranap_new_msg_rab_assign_data(uint8_t rab_id, uint32_t gtp_ip, uint32_t gtp_tei)
|
||||
{
|
||||
RANAP_ProtocolIE_FieldPair_t *pair;
|
||||
RANAP_RAB_AssignmentRequestIEs_t ies;
|
||||
RANAP_RAB_AssignmentRequest_t out;
|
||||
RANAP_DataVolumeReportingIndication_t *dat_vol_ind;
|
||||
struct msgb *msg;
|
||||
int rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
memset(&out, 0, sizeof(out));
|
||||
|
||||
/* only assingnment is present, no release */
|
||||
ies.presenceMask = RAB_ASSIGNMENTREQUESTIES_RANAP_RAB_SETUPORMODIFYLIST_PRESENT;
|
||||
|
||||
/* put together the 'First' part */
|
||||
RANAP_RAB_SetupOrModifyItemFirst_t first;
|
||||
memset(&first, 0, sizeof(first));
|
||||
assign_new_ra_id(&first.rAB_ID, rab_id);
|
||||
//first.nAS_SynchronisationIndicator = FIXME;
|
||||
first.rAB_Parameters = new_rab_par_data();
|
||||
first.userPlaneInformation = new_upi(RANAP_UserPlaneMode_transparent_mode, 1);
|
||||
first.transportLayerInformation = new_transp_info_rtp(gtp_ip, gtp_tei);
|
||||
|
||||
/* put together the 'Second' part */
|
||||
RANAP_RAB_SetupOrModifyItemSecond_t second;
|
||||
memset(&second, 0, sizeof(second));
|
||||
second.pDP_TypeInformation = CALLOC(1, sizeof(*second.pDP_TypeInformation));
|
||||
ASN_SEQUENCE_ADD(second.pDP_TypeInformation, new_long(RANAP_PDP_Type_ipv4));
|
||||
dat_vol_ind = CALLOC(1, sizeof(*dat_vol_ind));
|
||||
*dat_vol_ind = RANAP_DataVolumeReportingIndication_do_not_report;
|
||||
second.dataVolumeReportingIndication = dat_vol_ind;
|
||||
second.dl_GTP_PDU_SequenceNumber = new_long(0);
|
||||
second.ul_GTP_PDU_SequenceNumber = new_long(0);
|
||||
|
||||
/* Build an IE Pair out of first and second part:
|
||||
* (first, second) -> pair */
|
||||
pair = ranap_new_ie_pair(RANAP_ProtocolIE_ID_id_RAB_SetupOrModifyItem,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemFirst,
|
||||
&first, RANAP_Criticality_ignore,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemSecond,
|
||||
&second);
|
||||
|
||||
/* the pair has been made, we can release any of its elements */
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_SetupOrModifyItemFirst, &first);
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_SetupOrModifyItemSecond, &second);
|
||||
|
||||
/* Add the pair to the list of IEs of the RAB ass.req */
|
||||
ASN_SEQUENCE_ADD(&ies.raB_SetupOrModifyList.list, pair);
|
||||
|
||||
/* encode the IEs into the actual assignment request:
|
||||
* ies -> out */
|
||||
rc = ranap_encode_rab_assignmentrequesties(&out, &ies);
|
||||
/* 'out' has been generated, we can now release the input */
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_SetupOrModifyList,
|
||||
&ies.raB_SetupOrModifyList);
|
||||
if (rc < 0)
|
||||
return NULL;
|
||||
|
||||
/* generate an Initiating Mesasage: out -> msg */
|
||||
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_RAB_Assignment,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_RAB_AssignmentRequest, &out);
|
||||
|
||||
/* 'msg' has been generated, we cann now release the input 'out' */
|
||||
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RAB_AssignmentRequest, &out);
|
||||
|
||||
return msg;
|
||||
}
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
#pragma once
|
||||
|
||||
/*! \brief generate RANAP DIRECT TRANSFER message */
|
||||
struct msgb *ranap_new_msg_dt(uint8_t sapi, const uint8_t *nas, unsigned int nas_len);
|
||||
|
||||
/*! \brief generate RANAP SECURITY MODE COMMAND message */
|
||||
struct msgb *ranap_new_msg_sec_mod_cmd(const uint8_t *ik, const uint8_t *ck);
|
||||
|
||||
/*! \brief generate RANAP COMMON ID message */
|
||||
struct msgb *ranap_new_msg_common_id(const char *imsi);
|
||||
|
||||
/*! \brief generate RANAP IU RELEASE COMMAND message */
|
||||
struct msgb *ranap_new_msg_iu_rel_cmd(const RANAP_Cause_t *cause_in);
|
||||
|
||||
/*! \brief generate RANAP PAGING COMMAND message */
|
||||
struct msgb *ranap_new_msg_paging_cmd(const char *imsi, const uint32_t *tmsi, int is_ps, uint32_t cause);
|
||||
|
||||
/*! \brief generate RANAP RAB ASSIGNMENT REQUEST message for CS (voice) */
|
||||
struct msgb *ranap_new_msg_rab_assign_voice(uint8_t rab_id, uint32_t rtp_ip, uint16_t rtp_port);
|
||||
|
||||
/*! \brief generate RANAP RAB ASSIGNMENT REQUEST message for PS (data) */
|
||||
struct msgb *ranap_new_msg_rab_assign_data(uint8_t rab_id, uint32_t gtp_ip, uint32_t gtp_tei);
|
||||
|
|
@ -2,22 +2,27 @@ AM_CFLAGS = $(OSMOVTY_CFLAGS) $(OSMOCORE_CFLAGS) $(OSMOGSM_CFLAGS) $(ASN1C_CFLAG
|
|||
|
||||
COMMON_LIBS = $(OSMOVTY_LIBS) $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(ASN1C_LIBS) -lsctp
|
||||
|
||||
check_PROGRAMS = test-helpers test-hnbap hnb-test
|
||||
check_PROGRAMS = test-ranap test-helpers test-hnbap hnb-test
|
||||
|
||||
HNBAP_FILES = $(top_builddir)/src/hnbap_common.c $(top_builddir)/src/hnbap_decoder.c $(top_builddir)/src/hnbap_encoder.c
|
||||
RUA_FILES = $(top_builddir)/src/rua_common.c $(top_builddir)/src/rua_decoder.c $(top_builddir)/src/rua_encoder.c
|
||||
RANAP_FILES = $(top_builddir)/src/ranap_common.c ### $(top_builddir)/src/ranap_decoder.c $(top_builddir)/src/ranap_encoder.c
|
||||
RANAP_FILES = $(top_builddir)/src/ranap_common.c \
|
||||
$(top_builddir)/src/ranap_decoder.c \
|
||||
$(top_builddir)/src/ranap_encoder.c \
|
||||
$(top_builddir)/src/ranap_msg_factory.c
|
||||
HELPER_FILES = $(top_builddir)/src/iu_helpers.c $(top_builddir)/src/asn1helpers.c
|
||||
|
||||
test_helpers_SOURCES = $(top_builddir)/src/iu_helpers.c $(top_builddir)/src/asn1helpers.c test-helpers.c
|
||||
test_helpers_SOURCES = $(HELPER_FILES) test-helpers.c
|
||||
test_helpers_LDADD = $(COMMON_LIBS)
|
||||
|
||||
test_hnbap_SOURCES = $(top_builddir)/src/iu_helpers.c $(top_builddir)/src/asn1helpers.c $(top_builddir)/src/hnbap_common.c $(top_builddir)/src/hnbap_decoder.c test-hnbap.c
|
||||
test_hnbap_SOURCES = $(HELPER_FILES) $(top_builddir)/src/hnbap_common.c $(top_builddir)/src/hnbap_decoder.c test-hnbap.c
|
||||
test_hnbap_LDADD = $(COMMON_LIBS) $(top_builddir)/src/hnbap/libosmo-asn1-hnbap.a
|
||||
|
||||
hnb_test_SOURCES = $(top_builddir)/src/iu_helpers.c $(top_builddir)/src/asn1helpers.c $(HNBAP_FILES) $(RUA_FILES) $(RANAP_FILES) hnb-test.c
|
||||
hnb_test_SOURCES = $(HELPER_FILES) $(HNBAP_FILES) $(RUA_FILES) $(RANAP_FILES) hnb-test.c
|
||||
hnb_test_LDADD = $(COMMON_LIBS) $(top_builddir)/src/hnbap/libosmo-asn1-hnbap.a $(top_builddir)/src/rua/libosmo-asn1-rua.a $(top_builddir)/src/ranap/libosmo-asn1-ranap.a
|
||||
|
||||
|
||||
test_ranap_SOURCES = $(HELPER_FILES) $(RANAP_FILES) test-ranap.c
|
||||
test_ranap_LDADD = $(COMMON_LIBS) $(top_builddir)/src/ranap/libosmo-asn1-ranap.a
|
||||
|
||||
# The `:;' works around a Bash 3.2 bug when the output is not writeable.
|
||||
$(srcdir)/package.m4: $(top_srcdir)/configure.ac
|
||||
|
|
|
|||
|
|
@ -1,478 +1,132 @@
|
|||
/* (C) 2015 by Harald Welte <laforge@gnumonks.org>
|
||||
* All Rights Reserved
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation; either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <osmocom/core/utils.h>
|
||||
#include <osmocom/core/msgb.h>
|
||||
#include <osmocom/core/logging.h>
|
||||
#include <osmocom/vty/logging.h>
|
||||
|
||||
#include "asn1helpers.h"
|
||||
#include "iu_helpers.h"
|
||||
|
||||
#include "ranap_common.h"
|
||||
#include "ranap_ies_defs.h"
|
||||
#include "ranap_msg_factory.h"
|
||||
|
||||
/* This is just some non-compiling work in progress code to generate the
|
||||
* minimum set of RANAP messages that the core network side needs to send
|
||||
* towards the RNC */
|
||||
#include "hnbgw.h"
|
||||
|
||||
static long *new_long(long in)
|
||||
{
|
||||
long *out = CALLOC(1, sizeof(long));
|
||||
*out = in;
|
||||
return out;
|
||||
}
|
||||
void *talloc_asn1_ctx;
|
||||
int asn1_xer_print = 1;
|
||||
|
||||
int ranap_tx_dt(uint8_t sapi, const uint8_t *nas, unsigned int nas_len)
|
||||
{
|
||||
RANAP_DirectTransferIEs_t ies;
|
||||
RANAP_DirectTransfer_t dt;
|
||||
struct msgb *msg;
|
||||
int rc;
|
||||
extern void *tall_msgb_ctx;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
|
||||
/* only SAPI optional field shall be present for CN->RNC */
|
||||
ies.presenceMask = DIRECTTRANSFERIES_RANAP_SAPI_PRESENT;
|
||||
|
||||
if (sapi == 3)
|
||||
ies.sapi = RANAP_SAPI_sapi_3;
|
||||
else
|
||||
ies.sapi = RANAP_SAPI_sapi_0;
|
||||
|
||||
ies.nas_pdu.buf = (uint8_t *) nas;
|
||||
ies.nas_pdu.size = nas_len;
|
||||
|
||||
rc = ranap_encode_directtransferies(&dt, &ies);
|
||||
|
||||
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_DirectTransfer,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_DirectTransfer,
|
||||
&dt);
|
||||
/* FIXME: Hand that to RUA or SCCP */
|
||||
}
|
||||
|
||||
static const enum RANAP_IntegrityProtectionAlgorithm ip_alg[2] = {
|
||||
RANAP_IntegrityProtectionAlgorithm_standard_UMTS_integrity_algorithm_UIA1,
|
||||
RANAP_IntegrityProtectionAlgorithm_standard_UMTS_integrity_algorithm_UIA2,
|
||||
static const struct log_info_cat log_cat[] = {
|
||||
[DMAIN] = {
|
||||
.name = "DMAIN", .loglevel = LOGL_INFO, .enabled = 1,
|
||||
.color = "",
|
||||
.description = "Main program",
|
||||
},
|
||||
[DHNBAP] = {
|
||||
.name = "DHNBAP", .loglevel = LOGL_DEBUG, .enabled = 1,
|
||||
.color = "",
|
||||
.description = "Home Node B Application Part",
|
||||
},
|
||||
};
|
||||
|
||||
static const RANAP_EncryptionAlgorithm_t enc_alg[2] = {
|
||||
RANAP_EncryptionAlgorithm_standard_UMTS_encryption_algorith_UEA1,
|
||||
RANAP_EncryptionAlgorithm_standard_UMTS_encryption_algorithm_UEA2,
|
||||
static const struct log_info hnbgw_log_info = {
|
||||
.cat = log_cat,
|
||||
.num_cat = ARRAY_SIZE(log_cat),
|
||||
};
|
||||
|
||||
int ranap_tx_sec_mod_cmd(void)
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
RANAP_SecurityModeCommandIEs_t ies;
|
||||
RANAP_SecurityModeCommand_t out;
|
||||
uint8_t nas_buf[] = { 0xaa, 0xbb, 0xcc };
|
||||
struct msgb *msg;
|
||||
const char *imsi = "901700123456789";
|
||||
uint32_t tmsi = 0x01234567;
|
||||
uint32_t rtp_ip = 0x0a0b0c0d;
|
||||
uint16_t rtp_port = 2342;
|
||||
uint32_t gtp_ip = 0x1a1b1c1d;
|
||||
uint32_t gtp_tei = 0x11223344;
|
||||
uint8_t ik[16] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
|
||||
uint8_t ck[16] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 };
|
||||
int i, rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
//asn_debug = 1;
|
||||
|
||||
ies.presenceMask = SECURITYMODECOMMANDIES_RANAP_ENCRYPTIONINFORMATION_PRESENT;
|
||||
talloc_asn1_ctx = talloc_named_const(NULL, 1, "ASN");
|
||||
msgb_set_talloc_ctx(talloc_named_const(NULL, 1, "msgb"));
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(ip_alg); i++) {
|
||||
/* needs to be dynamically allocated, as
|
||||
* SET_OF_free() will call FREEMEM() on it */
|
||||
RANAP_IntegrityProtectionAlgorithm_t *alg = CALLOC(1, sizeof(*alg));
|
||||
*alg = ip_alg[i];
|
||||
ASN_SEQUENCE_ADD(&ies.integrityProtectionInformation.permittedAlgorithms, alg);
|
||||
rc = osmo_init_logging(&hnbgw_log_info);
|
||||
if (rc < 0)
|
||||
exit(1);
|
||||
|
||||
for (i = 0; i < 1; i++) {
|
||||
printf("\n==> DIRECT TRANSFER\n");
|
||||
msg = ranap_new_msg_dt(0, nas_buf, sizeof(nas_buf));
|
||||
if (msg)
|
||||
printf("%s\n", msgb_hexdump(msg));
|
||||
msgb_free(msg);
|
||||
|
||||
printf("\n==> SECURITY MODE COMMAND\n");
|
||||
msg = ranap_new_msg_sec_mod_cmd(ik, ck);
|
||||
if (msg)
|
||||
printf("%s\n", msgb_hexdump(msg));
|
||||
msgb_free(msg);
|
||||
|
||||
printf("\n==> COMMON ID\n");
|
||||
msg = ranap_new_msg_common_id(imsi);
|
||||
if (msg)
|
||||
printf("%s\n", msgb_hexdump(msg));
|
||||
msgb_free(msg);
|
||||
|
||||
printf("\n==> IU RELEASE CMD\n");
|
||||
RANAP_Cause_t cause = { .present = RANAP_Cause_PR_radioNetwork,
|
||||
.choice.radioNetwork = RANAP_CauseRadioNetwork_radio_connection_with_UE_Lost };
|
||||
msg = ranap_new_msg_iu_rel_cmd(&cause);
|
||||
if (msg)
|
||||
printf("%s\n", msgb_hexdump(msg));
|
||||
msgb_free(msg);
|
||||
|
||||
printf("\n==> PAGING CMD\n");
|
||||
msg = ranap_new_msg_paging_cmd(imsi, &tmsi, 0, RANAP_PagingCause_terminating_conversational_call);
|
||||
if (msg)
|
||||
printf("%s\n", msgb_hexdump(msg));
|
||||
msgb_free(msg);
|
||||
|
||||
printf("\n==> RAB ASSIGNMENT COMMAND (VOICE)\n");
|
||||
msg = ranap_new_msg_rab_assign_voice(1, rtp_ip, rtp_port);
|
||||
if (msg)
|
||||
printf("%s\n", msgb_hexdump(msg));
|
||||
msgb_free(msg);
|
||||
|
||||
printf("\n==> RAB ASSIGNMENT COMMAND (DATA)\n");
|
||||
msg = ranap_new_msg_rab_assign_data(2, gtp_ip, gtp_tei);
|
||||
if (msg)
|
||||
printf("%s\n", msgb_hexdump(msg));
|
||||
msgb_free(msg);
|
||||
}
|
||||
|
||||
ies.integrityProtectionInformation.key; /* FIXME */
|
||||
if (0) {
|
||||
for (i = 0; i < ARRAY_SIZE(ip_alg); i++) {
|
||||
/* needs to be dynamically allocated, as
|
||||
* SET_OF_free() will call FREEMEM() on it */
|
||||
RANAP_EncryptionAlgorithm_t *alg = CALLOC(1, sizeof(*alg));
|
||||
*alg = enc_alg[i];
|
||||
ASN_SEQUENCE_ADD(&ies.encryptionInformation.permittedAlgorithms, alg);
|
||||
}
|
||||
ies.encryptionInformation.key; /* FIXME */
|
||||
}
|
||||
|
||||
ies.keyStatus = RANAP_KeyStatus_new; /* FIXME */
|
||||
|
||||
rc = ranap_encode_securitymodecommandies(&out, &ies);
|
||||
|
||||
asn_sequence_empty(&ies.integrityProtectionInformation.permittedAlgorithms);
|
||||
asn_sequence_empty(&ies.encryptionInformation.permittedAlgorithms);
|
||||
|
||||
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_SecurityModeControl,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_SecurityModeCommand,
|
||||
&out);
|
||||
}
|
||||
|
||||
int ranap_tx_common_id(const char *imsi)
|
||||
{
|
||||
RANAP_CommonID_IEs_t ies;
|
||||
RANAP_CommonID_t out;
|
||||
struct msgb *msg;
|
||||
int rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
|
||||
if (imsi) {
|
||||
ies.permanentNAS_UE_ID.present = RANAP_PermanentNAS_UE_ID_PR_iMSI;
|
||||
ies.permanentNAS_UE_ID.choice.iMSI; /* FIXME */
|
||||
} else
|
||||
ies.permanentNAS_UE_ID.present = RANAP_PermanentNAS_UE_ID_PR_NOTHING;
|
||||
|
||||
rc = ranap_encode_commonid_ies(&out, &ies);
|
||||
|
||||
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_CommonID,
|
||||
RANAP_Criticality_ignore,
|
||||
&asn_DEF_RANAP_CommonID,
|
||||
&out);
|
||||
}
|
||||
|
||||
int ranap_tx_iu_rel_cmd(RANAP_Cause_t cause)
|
||||
{
|
||||
RANAP_Iu_ReleaseCommandIEs_t ies;
|
||||
RANAP_Iu_ReleaseCommand_t out;
|
||||
struct msgb *msg;
|
||||
int rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
|
||||
ies.cause = cause;
|
||||
|
||||
rc = ranap_encode_iu_releasecommandies(&out, &ies);
|
||||
|
||||
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_Iu_Release,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_Iu_ReleaseCommand,
|
||||
&out);
|
||||
}
|
||||
|
||||
int ranap_tx_paging_cmd(const char *imsi, uint32_t *tmsi, int is_ps, uint32_t cause)
|
||||
{
|
||||
RANAP_PagingIEs_t ies;
|
||||
RANAP_Paging_t out;
|
||||
struct msgb *msg;
|
||||
uint8_t *imsi_buf = CALLOC(1, 16);
|
||||
int rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
|
||||
if (is_ps)
|
||||
ies.cN_DomainIndicator = RANAP_CN_DomainIndicator_ps_domain;
|
||||
else
|
||||
ies.cN_DomainIndicator = RANAP_CN_DomainIndicator_cs_domain;
|
||||
|
||||
rc = encode_iu_imsi(imsi_buf, 16, imsi);
|
||||
ies.permanentNAS_UE_ID.present = RANAP_PermanentNAS_UE_ID_PR_iMSI;
|
||||
ies.permanentNAS_UE_ID.choice.iMSI.buf = imsi_buf;
|
||||
ies.permanentNAS_UE_ID.choice.iMSI.size = rc;
|
||||
|
||||
if (tmsi) {
|
||||
ies.presenceMask |= PAGINGIES_RANAP_TEMPORARYUE_ID_PRESENT;
|
||||
if (is_ps) {
|
||||
ies.temporaryUE_ID.present = RANAP_TemporaryUE_ID_PR_p_TMSI;
|
||||
ies.temporaryUE_ID.choice.tMSI;
|
||||
} else {
|
||||
ies.temporaryUE_ID.present = RANAP_TemporaryUE_ID_PR_tMSI;
|
||||
ies.temporaryUE_ID.choice.p_TMSI;
|
||||
}
|
||||
}
|
||||
|
||||
if (cause) {
|
||||
ies.presenceMask |= PAGINGIES_RANAP_PAGINGCAUSE_PRESENT;
|
||||
ies.pagingCause = cause;
|
||||
}
|
||||
|
||||
rc = ranap_encode_pagingies(&out, &ies);
|
||||
|
||||
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_Paging,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_Paging,
|
||||
&out);
|
||||
}
|
||||
|
||||
static RANAP_SDU_ErrorRatio_t *new_sdu_error_ratio(long mantissa, long exponent)
|
||||
{
|
||||
RANAP_SDU_ErrorRatio_t *err = CALLOC(1, sizeof(*err));
|
||||
|
||||
err->mantissa = mantissa;
|
||||
err->exponent = exponent;
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
static RANAP_SDU_FormatInformationParameterItem_t *
|
||||
new_format_info_pars(long sdu_size)
|
||||
{
|
||||
RANAP_SDU_FormatInformationParameterItem_t *fmti = CALLOC(1, sizeof(*fmti));
|
||||
fmti->subflowSDU_Size = new_long(sdu_size);
|
||||
return fmti;
|
||||
}
|
||||
|
||||
enum sdu_par_profile {
|
||||
SDUPAR_P_VOICE0,
|
||||
SDUPAR_P_VOICE1,
|
||||
SDUPAR_P_VOICE2,
|
||||
SDUPAR_P_DATA,
|
||||
};
|
||||
|
||||
/* See Chapter 5 of TS 26.102 */
|
||||
static RANAP_SDU_ParameterItem_t *new_sdu_par_item(enum sdu_par_profile profile)
|
||||
{
|
||||
RANAP_SDU_ParameterItem_t *sdui = CALLOC(1, sizeof(*sdui));
|
||||
RANAP_SDU_FormatInformationParameters_t *fmtip = CALLOC(1, sizeof(*fmtip));
|
||||
RANAP_SDU_FormatInformationParameterItem_t *fmti;
|
||||
|
||||
switch (profile) {
|
||||
case SDUPAR_P_VOICE0:
|
||||
sdui->sDU_ErrorRatio = new_sdu_error_ratio(1, 5);
|
||||
sdui->residualBitErrorRatio.mantissa = 1;
|
||||
sdui->residualBitErrorRatio.exponent = 6;
|
||||
sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_yes;
|
||||
sdui->sDU_FormatInformationParameters = fmtip;
|
||||
fmti = new_format_info_pars(81);
|
||||
ASN_SEQUENCE_ADD(fmtip, fmti);
|
||||
fmti = new_format_info_pars(39);
|
||||
ASN_SEQUENCE_ADD(fmtip, fmti);
|
||||
/* FIXME: could be 10 SDU descriptors for AMR! */
|
||||
break;
|
||||
case SDUPAR_P_VOICE1:
|
||||
sdui->residualBitErrorRatio.mantissa = 1;
|
||||
sdui->residualBitErrorRatio.exponent = 3;
|
||||
sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_no_error_detection_consideration;
|
||||
fmti = new_format_info_pars(103);
|
||||
ASN_SEQUENCE_ADD(fmtip, fmti);
|
||||
fmti = new_format_info_pars(0);
|
||||
ASN_SEQUENCE_ADD(fmtip, fmti);
|
||||
/* FIXME: could be 10 SDU descriptors for AMR! */
|
||||
break;
|
||||
case SDUPAR_P_VOICE2:
|
||||
sdui->residualBitErrorRatio.mantissa = 5;
|
||||
sdui->residualBitErrorRatio.exponent = 3;
|
||||
sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_no_error_detection_consideration;
|
||||
fmti = new_format_info_pars(60);
|
||||
ASN_SEQUENCE_ADD(fmtip, fmti);
|
||||
fmti = new_format_info_pars(0);
|
||||
ASN_SEQUENCE_ADD(fmtip, fmti);
|
||||
/* FIXME: could be 10 SDU descriptors for AMR! */
|
||||
break;
|
||||
case SDUPAR_P_DATA:
|
||||
sdui->sDU_ErrorRatio = new_sdu_error_ratio(1, 4);
|
||||
sdui->residualBitErrorRatio.mantissa = 1;
|
||||
sdui->residualBitErrorRatio.exponent = 5;
|
||||
sdui->deliveryOfErroneousSDU = RANAP_DeliveryOfErroneousSDU_no;
|
||||
break;
|
||||
}
|
||||
|
||||
return sdui;
|
||||
}
|
||||
|
||||
static RANAP_AllocationOrRetentionPriority_t *
|
||||
new_alloc_ret_prio(RANAP_PriorityLevel_t level, int capability, int vulnerability,
|
||||
int queueing_allowed)
|
||||
{
|
||||
RANAP_AllocationOrRetentionPriority_t *arp = CALLOC(1, sizeof(*arp));
|
||||
|
||||
arp->priorityLevel = level;
|
||||
|
||||
if (capability)
|
||||
arp->pre_emptionCapability = RANAP_Pre_emptionCapability_may_trigger_pre_emption;
|
||||
else
|
||||
arp->pre_emptionCapability = RANAP_Pre_emptionCapability_shall_not_trigger_pre_emption;
|
||||
|
||||
if (vulnerability)
|
||||
arp->pre_emptionVulnerability = RANAP_Pre_emptionVulnerability_pre_emptable;
|
||||
else
|
||||
arp->pre_emptionVulnerability = RANAP_Pre_emptionVulnerability_not_pre_emptable;
|
||||
|
||||
if (queueing_allowed)
|
||||
arp->queuingAllowed = RANAP_QueuingAllowed_queueing_allowed;
|
||||
else
|
||||
arp->queuingAllowed = RANAP_QueuingAllowed_queueing_not_allowed;
|
||||
|
||||
return arp;
|
||||
}
|
||||
|
||||
/* See Chapter 5 of TS 26.102 */
|
||||
static RANAP_RAB_Parameters_t *new_rab_par_voice(void)
|
||||
{
|
||||
RANAP_RAB_Parameters_t *rab = CALLOC(1, sizeof(*rab));
|
||||
RANAP_SDU_ParameterItem_t *sdui;
|
||||
|
||||
rab->trafficClass = RANAP_TrafficClass_conversational;
|
||||
rab->rAB_AsymmetryIndicator = RANAP_RAB_AsymmetryIndicator_symmetric_bidirectional;
|
||||
|
||||
ASN_SEQUENCE_ADD(&rab->maxBitrate, new_long(12200));
|
||||
rab->guaranteedBitRate = CALLOC(1, sizeof(*rab->guaranteedBitRate));
|
||||
ASN_SEQUENCE_ADD(&rab->guaranteedBitRate, new_long(12200));
|
||||
rab->deliveryOrder = RANAP_DeliveryOrder_delivery_order_requested;
|
||||
rab->maxSDU_Size = 244;
|
||||
|
||||
RANAP_SDU_Parameters_t *sdup = CALLOC(1, sizeof(*sdup));
|
||||
ASN_SEQUENCE_ADD(&sdup->list, sdui);
|
||||
|
||||
sdui = new_sdu_par_item(SDUPAR_P_VOICE0);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
sdui = new_sdu_par_item(SDUPAR_P_VOICE1);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
sdui = new_sdu_par_item(SDUPAR_P_VOICE2);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
|
||||
rab->transferDelay = new_long(80);
|
||||
rab->allocationOrRetentionPriority = new_alloc_ret_prio(RANAP_PriorityLevel_no_priority, 0, 1, 0);
|
||||
|
||||
rab->sourceStatisticsDescriptor = new_long(RANAP_SourceStatisticsDescriptor_speech);
|
||||
|
||||
return rab;
|
||||
}
|
||||
|
||||
static RANAP_RAB_Parameters_t *new_rab_par_data(void)
|
||||
{
|
||||
RANAP_RAB_Parameters_t *rab = CALLOC(1, sizeof(*rab));
|
||||
RANAP_SDU_ParameterItem_t *sdui;
|
||||
|
||||
rab->trafficClass = RANAP_TrafficClass_background;
|
||||
rab->rAB_AsymmetryIndicator = RANAP_RAB_AsymmetryIndicator_asymmetric_bidirectional;
|
||||
|
||||
ASN_SEQUENCE_ADD(&rab->maxBitrate, new_long(16000000));
|
||||
ASN_SEQUENCE_ADD(&rab->maxBitrate, new_long(8000000));
|
||||
rab->deliveryOrder = RANAP_DeliveryOrder_delivery_order_requested;
|
||||
rab->maxSDU_Size = 8000;
|
||||
|
||||
sdui = new_sdu_par_item(SDUPAR_P_DATA);
|
||||
ASN_SEQUENCE_ADD(&rab->sDU_Parameters, sdui);
|
||||
|
||||
rab->allocationOrRetentionPriority = new_alloc_ret_prio(RANAP_PriorityLevel_no_priority, 0, 0, 0);
|
||||
|
||||
/* FIXME: RAB-Parameter-ExtendedMaxBitrateList for 42Mbps? */
|
||||
|
||||
return rab;
|
||||
}
|
||||
|
||||
static RANAP_TransportLayerInformation_t *new_transp_info_rtp(uint32_t ip, uint16_t port)
|
||||
{
|
||||
RANAP_TransportLayerInformation_t *tli = CALLOC(1, sizeof(*tli));
|
||||
uint32_t *ipbuf = CALLOC(1, sizeof(*ipbuf));
|
||||
uint8_t binding_id[4];
|
||||
|
||||
binding_id[0] = port >> 8;
|
||||
binding_id[1] = port & 0xff;
|
||||
binding_id[2] = binding_id[3] = 0;
|
||||
|
||||
asn1_u32_to_bitstring(&tli->transportLayerAddress, ipbuf, htonl(ip));
|
||||
tli->iuTransportAssociation.present = RANAP_IuTransportAssociation_PR_bindingID;
|
||||
OCTET_STRING_fromBuf(&tli->iuTransportAssociation.choice.bindingID,
|
||||
(const char *) binding_id, sizeof(binding_id));
|
||||
|
||||
return tli;
|
||||
}
|
||||
|
||||
static RANAP_TransportLayerInformation_t *new_transp_info_gtp(uint32_t ip, uint32_t tei)
|
||||
{
|
||||
RANAP_TransportLayerInformation_t *tli = CALLOC(1, sizeof(*tli));
|
||||
uint32_t *ipbuf = CALLOC(1, sizeof(*ipbuf));
|
||||
uint32_t binding_buf = htonl(tei);
|
||||
|
||||
asn1_u32_to_bitstring(&tli->transportLayerAddress, ipbuf, htonl(ip));
|
||||
tli->iuTransportAssociation.present = RANAP_IuTransportAssociation_PR_gTP_TEI;
|
||||
OCTET_STRING_fromBuf(&tli->iuTransportAssociation.choice.bindingID,
|
||||
(const char *) &binding_buf, sizeof(binding_buf));
|
||||
|
||||
return tli;
|
||||
}
|
||||
|
||||
static RANAP_UserPlaneInformation_t *new_upi(long mode, uint8_t mode_versions)
|
||||
{
|
||||
RANAP_UserPlaneInformation_t *upi = CALLOC(1, sizeof(*upi));
|
||||
uint8_t *buf = CALLOC(1, sizeof(*buf));
|
||||
|
||||
*buf = mode_versions;
|
||||
|
||||
upi->userPlaneMode = mode;
|
||||
upi->uP_ModeVersions.buf = buf;
|
||||
upi->uP_ModeVersions.size = 1;
|
||||
upi->uP_ModeVersions.bits_unused = 0;
|
||||
|
||||
return upi;
|
||||
}
|
||||
|
||||
|
||||
static void assign_new_ra_id(RANAP_RAB_ID_t *id, uint8_t rab_id)
|
||||
{
|
||||
uint8_t *buf = CALLOC(1, sizeof(*buf));
|
||||
*buf = rab_id << 3;
|
||||
|
||||
id->buf = buf;
|
||||
id->size = 1;
|
||||
id->bits_unused = 0;
|
||||
}
|
||||
|
||||
int ranap_tx_rab_assign_voice(uint8_t rab_id, uint32_t rtp_ip, uint16_t rtp_port)
|
||||
{
|
||||
RANAP_ProtocolIE_FieldPair_t *pair;
|
||||
RANAP_RAB_AssignmentRequestIEs_t ies;
|
||||
RANAP_RAB_AssignmentRequest_t out;
|
||||
int rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
|
||||
/* only assingnment is present, no release */
|
||||
ies.presenceMask = RAB_ASSIGNMENTREQUESTIES_RANAP_RAB_SETUPORMODIFYLIST_PRESENT;
|
||||
|
||||
RANAP_RAB_SetupOrModifyItemFirst_t first;
|
||||
|
||||
assign_new_ra_id(&first.rAB_ID, rab_id);
|
||||
//first.nAS_SynchronisationIndicator = FIXME;
|
||||
first.rAB_Parameters = new_rab_par_voice();
|
||||
first.userPlaneInformation = new_upi(RANAP_UserPlaneMode_support_mode_for_predefined_SDU_sizes, 1); /* 2? */
|
||||
first.transportLayerInformation = new_transp_info_rtp(rtp_ip, rtp_port);
|
||||
|
||||
RANAP_RAB_SetupOrModifyItemSecond_t second;
|
||||
memset(&second, 0, sizeof(second));
|
||||
|
||||
pair = ranap_new_ie_pair(RANAP_ProtocolIE_ID_id_RAB_SetupOrModifyItem,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemFirst, &first,
|
||||
RANAP_Criticality_ignore,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemSecond, &second);
|
||||
|
||||
ASN_SEQUENCE_ADD(&ies.raB_SetupOrModifyList.list, pair);
|
||||
|
||||
rc = ranap_encode_rab_assignmentrequesties(&out, &ies);
|
||||
}
|
||||
|
||||
int ranap_tx_rab_assign_data(uint8_t rab_id, uint32_t gtp_ip, uint16_t gtp_port)
|
||||
{
|
||||
RANAP_ProtocolIE_FieldPair_t *pair;
|
||||
RANAP_RAB_AssignmentRequestIEs_t ies;
|
||||
RANAP_RAB_AssignmentRequest_t out;
|
||||
RANAP_DataVolumeReportingIndication_t *dat_vol_ind = CALLOC(1, sizeof(*dat_vol_ind));
|
||||
int rc;
|
||||
|
||||
memset(&ies, 0, sizeof(ies));
|
||||
|
||||
/* only assingnment is present, no release */
|
||||
ies.presenceMask = RAB_ASSIGNMENTREQUESTIES_RANAP_RAB_SETUPORMODIFYLIST_PRESENT;
|
||||
|
||||
RANAP_RAB_SetupOrModifyItemFirst_t first;
|
||||
|
||||
assign_new_ra_id(&first.rAB_ID, rab_id);
|
||||
//first.nAS_SynchronisationIndicator = FIXME;
|
||||
first.rAB_Parameters = new_rab_par_data();
|
||||
first.userPlaneInformation = new_upi(RANAP_UserPlaneMode_transparent_mode, 1);
|
||||
first.transportLayerInformation = new_transp_info_rtp(gtp_ip, gtp_port);
|
||||
|
||||
RANAP_RAB_SetupOrModifyItemSecond_t second;
|
||||
memset(&second, 0, sizeof(second));
|
||||
second.pDP_TypeInformation = CALLOC(1, sizeof(*second.pDP_TypeInformation));
|
||||
ASN_SEQUENCE_ADD(&second.pDP_TypeInformation, new_long(RANAP_PDP_Type_ipv4));
|
||||
*dat_vol_ind = RANAP_DataVolumeReportingIndication_do_not_report;
|
||||
second.dataVolumeReportingIndication = dat_vol_ind;
|
||||
second.dl_GTP_PDU_SequenceNumber = new_long(0);
|
||||
second.ul_GTP_PDU_SequenceNumber = new_long(0);
|
||||
|
||||
pair = ranap_new_ie_pair(RANAP_ProtocolIE_ID_id_RAB_SetupOrModifyItem,
|
||||
RANAP_Criticality_reject,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemFirst, &first,
|
||||
RANAP_Criticality_ignore,
|
||||
&asn_DEF_RANAP_RAB_SetupOrModifyItemSecond, &second);
|
||||
|
||||
ASN_SEQUENCE_ADD(&ies.raB_SetupOrModifyList.list, pair);
|
||||
|
||||
rc = ranap_encode_rab_assignmentrequesties(&out, &ies);
|
||||
printf("report\n");
|
||||
talloc_report(talloc_asn1_ctx, stdout);
|
||||
talloc_report(tall_msgb_ctx, stdout);
|
||||
//talloc_report(NULL, stdout);
|
||||
printf("exit\n");
|
||||
exit(0);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue