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Security algorithms selection

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git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5623 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
Lionel Gauthier
2014-07-29 13:55:03 +00:00
parent 56458e72ac
commit 093de6dfe7
6 changed files with 112 additions and 33 deletions
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openair-cn/NAS/EURECOM-NAS/src/emm/SecurityModeControl.c
+22 -25
View File
@@ -1127,36 +1127,33 @@ static int _security_select_algorithms(
{
LOG_FUNC_IN;
int rc = RETURNerror;
int rc = RETURNerror;
int preference_index;
/* TODO work with loaded preferences from config file */
*mme_eiaP = NAS_SECURITY_ALGORITHMS_EIA0;
*mme_eeaP = NAS_SECURITY_ALGORITHMS_EEA0;
if (ue_eiaP & (0x80 >> NAS_SECURITY_ALGORITHMS_EIA1)) {
LOG_TRACE(DEBUG,"Selected NAS_SECURITY_ALGORITHMS_EIA1");
*mme_eiaP = NAS_SECURITY_ALGORITHMS_EIA1;
} else if (ue_eiaP & (0x80 >> NAS_SECURITY_ALGORITHMS_EIA2)) {
LOG_TRACE(DEBUG,"Selected NAS_SECURITY_ALGORITHMS_EIA2");
*mme_eiaP = NAS_SECURITY_ALGORITHMS_EIA2;
} else if (ue_eiaP & (0x80 >> NAS_SECURITY_ALGORITHMS_EIA0)) {
LOG_TRACE(DEBUG,"Selected NAS_SECURITY_ALGORITHMS_EIA0");
*mme_eiaP = NAS_SECURITY_ALGORITHMS_EIA0;
} else {
LOG_FUNC_RETURN (rc);
for (preference_index = 0; preference_index < 8; preference_index++) {
if (ue_eiaP & (0x80 >> _emm_data.conf.prefered_integrity_algorithm[preference_index])) {
LOG_TRACE(DEBUG,
"Selected NAS_SECURITY_ALGORITHMS_EIA%d (choice num %d)",
_emm_data.conf.prefered_integrity_algorithm[preference_index],
preference_index);
*mme_eiaP = _emm_data.conf.prefered_integrity_algorithm[preference_index];
break;
}
}
if (ue_eeaP & (0x80 >> NAS_SECURITY_ALGORITHMS_EEA0)) {
LOG_TRACE(DEBUG,"Selected NAS_SECURITY_ALGORITHMS_EEA0");
*mme_eeaP = NAS_SECURITY_ALGORITHMS_EEA0;
} else if (ue_eeaP & (0x80 >> NAS_SECURITY_ALGORITHMS_EEA1)) {
LOG_TRACE(DEBUG,"Selected NAS_SECURITY_ALGORITHMS_EEA1");
*mme_eeaP = NAS_SECURITY_ALGORITHMS_EEA1;
} else if (ue_eeaP & (0x80 >> NAS_SECURITY_ALGORITHMS_EEA2)) {
LOG_TRACE(DEBUG,"Selected NAS_SECURITY_ALGORITHMS_EEA2");
*mme_eeaP = NAS_SECURITY_ALGORITHMS_EEA2;
} else {
LOG_FUNC_RETURN (rc);
for (preference_index = 0; preference_index < 8; preference_index++) {
if (ue_eeaP & (0x80 >> _emm_data.conf.prefered_ciphering_algorithm[preference_index])) {
LOG_TRACE(DEBUG,
"Selected NAS_SECURITY_ALGORITHMS_EEA%d (choice num %d)",
_emm_data.conf.prefered_ciphering_algorithm[preference_index],
preference_index);
*mme_eeaP = _emm_data.conf.prefered_ciphering_algorithm[preference_index];
break;
}
}
LOG_FUNC_RETURN (RETURNok);
}