open5gs/src/mme/s1ap_conv.c

111 lines
3.1 KiB
C

#define TRACE_MODULE _s1conv
#include "core_debug.h"
#include "types.h"
#include "s1ap_conv.h"
void s1ap_uint8_to_OCTET_STRING(c_uint8_t uint8, OCTET_STRING_t *octet_string)
{
octet_string->size = 1;
octet_string->buf = core_calloc(octet_string->size, sizeof(c_uint8_t));
octet_string->buf[0] = uint8;
}
void s1ap_uint16_to_OCTET_STRING(c_uint16_t uint16, OCTET_STRING_t *octet_string)
{
octet_string->size = 2;
octet_string->buf = core_calloc(octet_string->size, sizeof(c_uint8_t));
octet_string->buf[0] = uint16 >> 8;
octet_string->buf[1] = uint16;
}
void s1ap_uint32_to_OCTET_STRING(c_uint32_t uint32, OCTET_STRING_t *octet_string)
{
octet_string->size = 4;
octet_string->buf = core_calloc(octet_string->size, sizeof(c_uint8_t));
octet_string->buf[0] = uint32 >> 24;
octet_string->buf[1] = uint32 >> 16;
octet_string->buf[2] = uint32 >> 8;
octet_string->buf[3] = uint32;
}
void s1ap_buffer_to_OCTET_STRING(
void *buf, int size, S1ap_TBCD_STRING_t *tbcd_string)
{
tbcd_string->size = size;
tbcd_string->buf = core_calloc(tbcd_string->size, sizeof(c_uint8_t));
memcpy(tbcd_string->buf, buf, size);
}
void s1ap_uint32_to_ENB_ID(
S1ap_ENB_ID_PR present, c_uint32_t enb_id, S1ap_ENB_ID_t *eNB_ID)
{
d_assert(eNB_ID, return, "Null param");
eNB_ID->present = present;
if (present == S1ap_ENB_ID_PR_macroENB_ID)
{
BIT_STRING_t *bit_string = &eNB_ID->choice.macroENB_ID;
d_assert(bit_string, return, "Null param");
bit_string->size = 3;
bit_string->buf = core_calloc(bit_string->size, sizeof(c_uint8_t));
bit_string->buf[0] = enb_id >> 12;
bit_string->buf[1] = enb_id >> 4;
bit_string->buf[2] = (enb_id & 0xf) << 4;
bit_string->bits_unused = 4;
}
else if (present == S1ap_ENB_ID_PR_homeENB_ID)
{
BIT_STRING_t *bit_string = &eNB_ID->choice.homeENB_ID;
d_assert(bit_string, return, "Null param");
bit_string->size = 4;
bit_string->buf = core_calloc(bit_string->size, sizeof(c_uint8_t));
bit_string->buf[0] = enb_id >> 20;
bit_string->buf[1] = enb_id >> 12;
bit_string->buf[2] = enb_id >> 4;
bit_string->buf[3] = (enb_id & 0xf) << 4;
bit_string->bits_unused = 4;
}
else
{
d_assert(0, return, "Invalid param");
}
}
void s1ap_ENB_ID_to_uint32(S1ap_ENB_ID_t *eNB_ID, c_uint32_t *uint32)
{
d_assert(uint32, return, "Null param");
d_assert(eNB_ID, return, "Null param");
if (eNB_ID->present == S1ap_ENB_ID_PR_homeENB_ID)
{
c_uint8_t *buf = eNB_ID->choice.homeENB_ID.buf;
d_assert(buf, return, "Null param");
*uint32 = (buf[0] << 20) + (buf[1] << 12) + (buf[2] << 4) +
((buf[3] & 0xf0) >> 4);
}
else if (eNB_ID->present == S1ap_ENB_ID_PR_macroENB_ID)
{
c_uint8_t *buf = eNB_ID->choice.macroENB_ID.buf;
d_assert(buf, return, "Null param");
*uint32 = (buf[0] << 12) + (buf[1] << 4) + ((buf[2] & 0xf0) >> 4);
}
else
{
d_assert(0, return, "Invalid param");
}
}