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ranap_msg_factory.c: Use X.213 NSAP encoding for TransportLayerAddr

This commit is contained in:
Harald Welte 2015-12-28 13:14:52 +01:00
parent 2cf0d8f1eb
commit bfe49a2293
1 changed files with 24 additions and 4 deletions
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28
src/ranap_msg_factory.c
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@ -553,17 +553,38 @@ static RANAP_RAB_Parameters_t *new_rab_par_data(void)
return rab;
}
static void new_transp_layer_addr(BIT_STRING_t *out, uint32_t ip, int use_x213_nsap)
{
uint8_t *buf;
unsigned int len;
if (use_x213_nsap) {
len = 7;
buf = CALLOC(len, sizeof(uint8_t));
buf[0] = 0x35; /* AFI For IANA ICP */
buf[1] = 0x00; /* See A.5.2.1.2.7 of X.213 */
buf[2] = 0x01;
*(uint32_t *)&buf[3] = ntohl(ip);
} else {
len = 4;
buf = CALLOC(len, sizeof(uint8_t));
*(uint32_t *)buf = ip;
}
out->buf = buf;
out->size = len;
out->bits_unused = 0;
}
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, ip);
new_transp_layer_addr(&tli->transportLayerAddress, ip, 1);
tli->iuTransportAssociation.present = RANAP_IuTransportAssociation_PR_bindingID;
OCTET_STRING_fromBuf(&tli->iuTransportAssociation.choice.bindingID,
(const char *) binding_id, sizeof(binding_id));
@ -574,10 +595,9 @@ static RANAP_TransportLayerInformation_t *new_transp_info_rtp(uint32_t ip, uint1
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 = tei;
asn1_u32_to_bitstring(&tli->transportLayerAddress, ipbuf, ip);
new_transp_layer_addr(&tli->transportLayerAddress, ip, 1);
tli->iuTransportAssociation.present = RANAP_IuTransportAssociation_PR_gTP_TEI;
OCTET_STRING_fromBuf(&tli->iuTransportAssociation.choice.bindingID,
(const char *) &binding_buf, sizeof(binding_buf));