libmsc: ran_iu_make_security_mode_command(): clarify UIA mask
Change-Id: I7535d5ede5b22c61575a16d15927598e6137392a
This commit is contained in:
parent
35db146e88
commit
d405bad32d
|
@ -375,6 +375,8 @@ static struct msgb *ran_iu_make_rab_assignment(struct osmo_fsm_inst *caller_fi,
|
||||||
static struct msgb *ran_iu_make_security_mode_command(struct osmo_fsm_inst *caller_fi,
|
static struct msgb *ran_iu_make_security_mode_command(struct osmo_fsm_inst *caller_fi,
|
||||||
const struct ran_cipher_mode_command *cm)
|
const struct ran_cipher_mode_command *cm)
|
||||||
{
|
{
|
||||||
|
/* TODO: make the choice of available UIA algorithms configurable */
|
||||||
|
const uint8_t uia_mask = (1 << OSMO_UTRAN_UIA1) | (1 << OSMO_UTRAN_UIA2);
|
||||||
bool use_encryption = cm->utran.uea_encryption_mask > (1 << OSMO_UTRAN_UEA0);
|
bool use_encryption = cm->utran.uea_encryption_mask > (1 << OSMO_UTRAN_UEA0);
|
||||||
|
|
||||||
LOG_RAN_IU_ENC(caller_fi, LOGL_DEBUG, "Tx RANAP SECURITY MODE COMMAND to RNC, IK=%s, CK=%s\n",
|
LOG_RAN_IU_ENC(caller_fi, LOGL_DEBUG, "Tx RANAP SECURITY MODE COMMAND to RNC, IK=%s, CK=%s\n",
|
||||||
|
@ -384,7 +386,9 @@ static struct msgb *ran_iu_make_security_mode_command(struct osmo_fsm_inst *call
|
||||||
* in the case of A5? */
|
* in the case of A5? */
|
||||||
return ranap_new_msg_sec_mod_cmd2(cm->vec->ik,
|
return ranap_new_msg_sec_mod_cmd2(cm->vec->ik,
|
||||||
use_encryption ? cm->vec->ck : NULL,
|
use_encryption ? cm->vec->ck : NULL,
|
||||||
RANAP_KeyStatus_new, 0x06, cm->utran.uea_encryption_mask);
|
RANAP_KeyStatus_new,
|
||||||
|
(uia_mask << 1), /* API treats LSB as UIA0 */
|
||||||
|
cm->utran.uea_encryption_mask);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue