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/* common RUA (RANAP User Adaption) Code */
/* (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 <stdint.h>
#include <osmocom/core/msgb.h>
#include <osmocom/rua/rua_common.h>
#include <osmocom/iuh/hnbgw.h>
extern int asn1_xer_print;
static const struct value_string rua_cause_radio_vals[] = {
{ RUA_CauseRadioNetwork_normal, "normal" },
{ RUA_CauseRadioNetwork_connect_failed, "connect failed" },
{ RUA_CauseRadioNetwork_network_release, "network release" },
{ RUA_CauseRadioNetwork_unspecified, "unspecified" },
{ 0, NULL }
};
static const struct value_string rua_cause_transp_vals[] = {
{ RUA_CauseTransport_transport_resource_unavailable, "resource unavailable" },
{ RUA_CauseTransport_unspecified, "unspecified" },
{ 0, NULL }
};
static const struct value_string rua_cause_prot_vals[] = {
{ RUA_CauseProtocol_transfer_syntax_error, "syntax error" },
{ RUA_CauseProtocol_abstract_syntax_error_reject,
"abstract syntax error; reject" },
{ RUA_CauseProtocol_abstract_syntax_error_ignore_and_notify,
"abstract syntax error; ignore and notify" },
{ RUA_CauseProtocol_message_not_compatible_with_receiver_state,
"message not compatible with receiver state" },
{ RUA_CauseProtocol_semantic_error, "semantic error" },
{ RUA_CauseProtocol_unspecified, "unspecified" },
{ RUA_CauseProtocol_abstract_syntax_error_falsely_constructed_message,
"falsely constructed message" },
{ 0, NULL }
};
static const struct value_string rua_cause_misc_vals[] = {
{ RUA_CauseMisc_processing_overload, "processing overload" },
{ RUA_CauseMisc_hardware_failure, "hardware failure" },
{ RUA_CauseMisc_o_and_m_intervention, "OAM intervention" },
{ RUA_CauseMisc_unspecified, "unspecified" },
{ 0, NULL }
};
char *rua_cause_str(RUA_Cause_t *cause)
{
static char buf[32];
switch (cause->present) {
case RUA_Cause_PR_radioNetwork:
snprintf(buf, sizeof(buf), "radio(%s)",
get_value_string(rua_cause_radio_vals,
cause->choice.radioNetwork));
break;
case RUA_Cause_PR_transport:
snprintf(buf, sizeof(buf), "transport(%s)",
get_value_string(rua_cause_transp_vals,
cause->choice.transport));
break;
case RUA_Cause_PR_protocol:
snprintf(buf, sizeof(buf), "protocol(%s)",
get_value_string(rua_cause_prot_vals,
cause->choice.protocol));
break;
case RUA_Cause_PR_misc:
snprintf(buf, sizeof(buf), "misc(%s)",
get_value_string(rua_cause_misc_vals,
cause->choice.misc));
break;
default:
strcpy(buf, "unknown");
break;
}
return buf;
}
static struct msgb *rua_msgb_alloc(void)
{
return msgb_alloc(1024, "RUA Tx");
}
static struct msgb *_rua_gen_msg(RUA_RUA_PDU_t *pdu)
{
struct msgb *msg = rua_msgb_alloc();
asn_enc_rval_t rval;
if (!msg)
return NULL;
rval = aper_encode_to_buffer(&asn_DEF_RUA_RUA_PDU, pdu,
msg->data, msgb_tailroom(msg));
if (rval.encoded < 0) {
LOGP(DRUA, LOGL_ERROR, "Error encoding type: %s\n",
rval.failed_type->name);
}
msgb_put(msg, rval.encoded/8);
return msg;
}
struct msgb *rua_generate_initiating_message(
e_RUA_ProcedureCode procedureCode,
RUA_Criticality_t criticality,
asn_TYPE_descriptor_t * td, void *sptr)
{
RUA_RUA_PDU_t pdu;
int rc;
memset(&pdu, 0, sizeof(pdu));
pdu.present = RUA_RUA_PDU_PR_initiatingMessage;
pdu.choice.initiatingMessage.procedureCode = procedureCode;
pdu.choice.initiatingMessage.criticality = criticality;
rc = ANY_fromType_aper(&pdu.choice.initiatingMessage.value, td, sptr);
if (rc < 0) {
LOGP(DRUA, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", td->name);
return NULL;
}
return _rua_gen_msg(&pdu);
}
struct msgb *rua_generate_successful_outcome(
e_RUA_ProcedureCode procedureCode,
RUA_Criticality_t criticality,
asn_TYPE_descriptor_t * td,
void *sptr)
{
RUA_RUA_PDU_t pdu;
int rc;
memset(&pdu, 0, sizeof(pdu));
pdu.present = RUA_RUA_PDU_PR_successfulOutcome;
pdu.choice.successfulOutcome.procedureCode = procedureCode;
pdu.choice.successfulOutcome.criticality = criticality;
rc = ANY_fromType_aper(&pdu.choice.successfulOutcome.value, td, sptr);
if (rc < 0) {
LOGP(DRUA, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", td->name);
return NULL;
}
return _rua_gen_msg(&pdu);
}
struct msgb *rua_generate_unsuccessful_outcome(
e_RUA_ProcedureCode procedureCode,
RUA_Criticality_t criticality,
asn_TYPE_descriptor_t * td,
void *sptr)
{
RUA_RUA_PDU_t pdu;
int rc;
memset(&pdu, 0, sizeof(pdu));
pdu.present = RUA_RUA_PDU_PR_unsuccessfulOutcome;
pdu.choice.unsuccessfulOutcome.procedureCode = procedureCode;
pdu.choice.unsuccessfulOutcome.criticality = criticality;
rc = ANY_fromType_aper(&pdu.choice.unsuccessfulOutcome.value, td, sptr);
if (rc < 0) {
LOGP(DRUA, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", td->name);
return NULL;
}
return _rua_gen_msg(&pdu);
}
RUA_IE_t *rua_new_ie(RUA_ProtocolIE_ID_t id,
RUA_Criticality_t criticality,
asn_TYPE_descriptor_t * type, void *sptr)
{
RUA_IE_t *buff;
int rc;
if ((buff = CALLOC(1, sizeof(*buff))) == NULL) {
// Possible error on malloc
return NULL;
}
buff->id = id;
buff->criticality = criticality;
rc = ANY_fromType_aper(&buff->value, type, sptr);
if (rc < 0) {
LOGP(DRUA, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", type->name);
FREEMEM(buff);
return NULL;
}
if (asn1_xer_print)
if (xer_fprint(stdout, &asn_DEF_RUA_IE, buff) < 0) {
FREEMEM(buff);
return NULL;
}
return buff;
}
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