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ranap: New ranap_new_msg_initial_ue() funcition 

for testing, it is useful if we can also generate an InitialUE
message - even though a HNB-GW only needs to receive it.
This commit is contained in:
Harald Welte 2015-12-24 15:09:06 +01:00
parent afcaac08ee
commit ea98b6f6d6
3 changed files with 63 additions and 3 deletions
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7
src/hnbgw_ranap.c
View File

@ -55,13 +55,16 @@ static int ranap_tx_reset_ack(struct hnb_context *hnb,
static int ranap_rx_init_reset(struct hnb_context *hnb, ANY_t *in)
{
RANAP_ResetIEs_t ies;
int rc;
int rc, is_ps = 0;
rc = ranap_decode_reseties(&ies, in);
if (rc < 0)
return rc;
DEBUGP(DRANAP, "RESET.req\n");
if (ies.cN_DomainIndicator == RANAP_CN_DomainIndicator_ps_domain)
is_ps=1;
DEBUGP(DRANAP, "RESET.req(%s)\n", is_ps ? "ps" : "cs");
/* FIXME: Actually we have to wait for some guard time? */
/* FIXME: Reset all resources related to this HNB/RNC */

53
src/ranap_msg_factory.c
View File

@ -86,7 +86,9 @@ struct msgb *ranap_new_msg_reset_ack(RANAP_CN_DomainIndicator_t domain,
* ACKNOWLEDGE message to the CN */
if (rnc_id) {
ies.presenceMask = RESETACKNOWLEDGEIES_RANAP_GLOBALRNC_ID_PRESENT;
/* FIXME: Copy PLMN Identity TBCD-String */
OCTET_STRING_fromBuf(&ies.globalRNC_ID.pLMNidentity,
rnc_id->pLMNidentity.buf,
rnc_id->pLMNidentity.size);
ies.globalRNC_ID.rNC_ID = rnc_id->rNC_ID;
}
@ -110,6 +112,55 @@ struct msgb *ranap_new_msg_reset_ack(RANAP_CN_DomainIndicator_t domain,
return msg;
}
/*! \brief generate RANAP INITIAL UE message */
struct msgb *ranap_new_msg_initial_ue(uint32_t conn_id, int is_ps,
RANAP_GlobalRNC_ID_t *rnc_id,
uint8_t *nas_pdu, unsigned int nas_len)
{
RANAP_InitialUE_MessageIEs_t ies;
RANAP_InitialUE_Message_t out;
struct msgb *msg;
uint32_t ctxidbuf;
int rc;
uint16_t buf0 = 0x2342;
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;
OCTET_STRING_fromBuf(&ies.lai.pLMNidentity, rnc_id->pLMNidentity.buf, rnc_id->pLMNidentity.size);
OCTET_STRING_fromBuf(&ies.lai.lAC, &buf0, sizeof(buf0));
OCTET_STRING_fromBuf(&ies.sai.pLMNidentity, rnc_id->pLMNidentity.buf, rnc_id->pLMNidentity.size);
OCTET_STRING_fromBuf(&ies.sai.lAC, &buf0, sizeof(buf0));
OCTET_STRING_fromBuf(&ies.sai.sAC, &buf0, sizeof(buf0));
OCTET_STRING_fromBuf(&ies.nas_pdu, nas_pdu, nas_len);
asn1_u24_to_bitstring(&ies.iuSigConId, &ctxidbuf, conn_id);
OCTET_STRING_fromBuf(&ies.globalRNC_ID.pLMNidentity, rnc_id->pLMNidentity.buf, rnc_id->pLMNidentity.size);
ies.globalRNC_ID.rNC_ID = rnc_id->rNC_ID;
memset(&out, 0, sizeof(out));
rc = ranap_encode_initialue_messageies(&out, &ies);
if (rc < 0) {
LOGP(DRANAP, LOGL_ERROR, "error encoding initial UE IEs: %d\n", rc);
return NULL;
}
msg = ranap_generate_initiating_message(RANAP_ProcedureCode_id_InitialUE_Message,
RANAP_Criticality_reject,
&asn_DEF_RANAP_InitialUE_Message,
&out);
/* release dynamic allocations attached to dt */
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_InitialUE_Message, &out);
return msg;
}
/*! \brief generate RANAP DIRECT TRANSFER message */
struct msgb *ranap_new_msg_dt(uint8_t sapi, const uint8_t *nas, unsigned int nas_len)
{

6
src/ranap_msg_factory.h
View File

@ -33,3 +33,9 @@ struct msgb *ranap_new_msg_reset(RANAP_CN_DomainIndicator_t domain,
/*! \brief generate RANAP RESET ACK message */
struct msgb *ranap_new_msg_reset_ack(RANAP_CN_DomainIndicator_t domain,
RANAP_GlobalRNC_ID_t *rnc_id);
/*! \brief generate RANAP INITIAL UE message */
struct msgb *ranap_new_msg_initial_ue(uint32_t conn_id, int is_ps,
RANAP_GlobalRNC_ID_t *rnc_id,
uint8_t *nas_pdu, unsigned int nas_len);