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Add number of slices to decoding of NSSAI

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This commit is contained in:
Guido Casati
2025-04-15 19:54:23 +02:00
parent 51661bd83c
commit c6271a23e4
2 changed files with 6 additions and 3 deletions
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openair3/NAS/NR_UE/5GS/5GMM/MSG/RegistrationAccept.c
+4 -3
View File
@@ -70,7 +70,7 @@ static int encode_fgs_registration_result(byte_array_t buffer, const registratio
/**
* @brief Allowed NSSAI from Registration Accept according to 3GPP TS 24.501 Table 8.2.7.1.1
*/
static int decode_nssai_ie(nr_nas_msg_snssai_t *nssai, const uint8_t *buf)
static int decode_nssai_ie(nr_nas_msg_snssai_t *nssai, uint8_t *num_slices, uint8_t *buf)
{
const int length = *buf; // Length of S-NSSAI IE contents (list of S-NSSAIs)
const uint32_t decoded = length + 1; // Length IE (1 octet)
@@ -123,6 +123,7 @@ static int decode_nssai_ie(nr_nas_msg_snssai_t *nssai, const uint8_t *buf)
break;
}
}
*num_slices = nssai_cnt;
return decoded;
}
@@ -159,12 +160,12 @@ size_t decode_registration_accept(registration_accept_msg *registration_accept,
switch (iei) {
case 0x15: // allowed NSSAI
dec = decode_nssai_ie(registration_accept->nas_allowed_nssai, ba.buf);
dec = decode_nssai_ie(registration_accept->nas_allowed_nssai, &registration_accept->num_allowed_slices, ba.buf);
UPDATE_BYTE_ARRAY(ba, dec);
break;
case 0x31: // configured NSSAI
dec = decode_nssai_ie(registration_accept->config_nssai, ba.buf);
dec = decode_nssai_ie(registration_accept->config_nssai, &registration_accept->num_configured_slices, ba.buf);
UPDATE_BYTE_ARRAY(ba, dec);
break;
openair3/NAS/NR_UE/5GS/5GMM/MSG/RegistrationAccept.h
+2
View File
@@ -71,8 +71,10 @@ typedef struct registration_accept_msg_tag {
FGSMobileIdentity *guti;
// Allowed NSSAI (Optional)
nr_nas_msg_snssai_t nas_allowed_nssai[NAS_MAX_NUMBER_SLICES];
uint8_t num_allowed_slices;
// Configured NSSAI (Optional)
nr_nas_msg_snssai_t config_nssai[NAS_MAX_NUMBER_SLICES];
uint8_t num_configured_slices;
} registration_accept_msg;
size_t decode_registration_accept(registration_accept_msg *registrationaccept, const byte_array_t buffer);