Robert Schmidt
8107939f08
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly
For automated changes based on OAI PL v1.1:
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml
The rest (cmake, files with missing license, cmake) manually.
130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include "TLVEncoder.h"
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#include "TLVDecoder.h"
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#include "UeSecurityCapability.h"
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int decode_ue_security_capability(UeSecurityCapability *uesecuritycapability, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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int decoded = 0;
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uint8_t ielen = 0;
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if (iei > 0) {
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CHECK_IEI_DECODER(iei, *buffer);
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decoded++;
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}
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memset(uesecuritycapability, 0, sizeof(UeSecurityCapability));
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ielen = *(buffer + decoded);
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decoded++;
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CHECK_LENGTH_DECODER(len - decoded, ielen);
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uesecuritycapability->eea = *(buffer + decoded);
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decoded++;
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uesecuritycapability->eia = *(buffer + decoded);
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decoded++;
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if (len >= decoded + 3) {
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uesecuritycapability->umts_present = 1;
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uesecuritycapability->uea = *(buffer + decoded);
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decoded++;
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uesecuritycapability->uia = *(buffer + decoded) & 0x7f;
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decoded++;
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if (len == decoded + 4) {
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uesecuritycapability->gprs_present = 1;
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uesecuritycapability->gea = *(buffer + decoded) & 0x7f;
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decoded++;
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}
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}
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#if defined (NAS_DEBUG)
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dump_ue_security_capability_xml(uesecuritycapability, iei);
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#endif
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return decoded;
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}
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int encode_ue_security_capability(UeSecurityCapability *uesecuritycapability, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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uint8_t *lenPtr;
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uint32_t encoded = 0;
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/* Checking IEI and pointer */
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CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, UE_SECURITY_CAPABILITY_MINIMUM_LENGTH, len);
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#if defined (NAS_DEBUG)
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dump_ue_security_capability_xml(uesecuritycapability, iei);
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#endif
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if (iei > 0) {
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*buffer = iei;
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encoded++;
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}
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lenPtr = (buffer + encoded);
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encoded ++;
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*(buffer + encoded) = uesecuritycapability->eea;
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encoded++;
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*(buffer + encoded) = uesecuritycapability->eia;
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encoded++;
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// From ETSI TS 124 301 V10.15.0 (2014-10) 9.9.3.36 Security capability:
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// Octets 5, 6, and 7 are optional. If octet 5 is included, then also octet 6 shall be included and octet 7 may be included.
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// If a UE did not indicate support of any security algorithm for Gb mode, octet 7 shall not be included. If the UE did not
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// indicate support of any security algorithm for Iu mode and Gb mode, octets 5, 6, and 7 shall not be included.
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// If the UE did not indicate support of any security algorithm for Iu mode but indicated support of a security algorithm for
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// Gb mode, octets 5, 6, and 7 shall be included. In this case octets 5 and 6 are filled with the value of zeroes.
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if (uesecuritycapability->umts_present) {
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*(buffer + encoded) = uesecuritycapability->uea;
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encoded++;
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*(buffer + encoded) = 0x00 |
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(uesecuritycapability->uia & 0x7f);
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encoded++;
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if (uesecuritycapability->gprs_present) {
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*(buffer + encoded) = 0x00 | (uesecuritycapability->gea & 0x7f);
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encoded++;
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}
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} else {
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if (uesecuritycapability->gprs_present) {
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*(buffer + encoded) = 0x00;
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encoded++;
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*(buffer + encoded) = 0x00;
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encoded++;
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*(buffer + encoded) = 0x00 | (uesecuritycapability->gea & 0x7f);
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encoded++;
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}
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}
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*lenPtr = encoded - 1 - ((iei > 0) ? 1 : 0);
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return encoded;
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}
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void dump_ue_security_capability_xml(UeSecurityCapability *uesecuritycapability, uint8_t iei)
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{
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printf("<Ue Security Capability>\n");
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if (iei > 0)
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/* Don't display IEI if = 0 */
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printf(" <IEI>0x%X</IEI>\n", iei);
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printf(" <EEA>%u</EEA>\n", uesecuritycapability->eea);
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printf(" <EIA>%u</EIA>\n", uesecuritycapability->eia);
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if (uesecuritycapability->umts_present == 1) {
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printf(" <UEA>%u</UEA>\n", uesecuritycapability->uea);
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printf(" <UIA>%u</UIA>\n", uesecuritycapability->uia);
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}
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if (uesecuritycapability->gprs_present == 1) {
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printf(" <GEA>%u</GEA>\n", uesecuritycapability->gea);
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}
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printf("</Ue Security Capability>\n");
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}
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