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trxcon: make l1sched_a5_burst_dec() accept l1sched_burst_ind 

Change-Id: I5dd16cff1c9730a496748681842f571d25653cb9
This commit is contained in:
Vadim Yanitskiy 2023-01-31 04:03:41 +07:00
parent 60716bcfe6
commit 5ed15cb937
1 changed files with 5 additions and 5 deletions
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10
src/host/trxcon/src/sched_trx.c
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@ -623,20 +623,20 @@ enum l1sched_lchan_type l1sched_chan_nr2lchan_type(uint8_t chan_nr,
}
static void l1sched_a5_burst_dec(struct l1sched_lchan_state *lchan,
uint32_t fn, sbit_t *burst)
struct l1sched_burst_ind *bi)
{
ubit_t ks[114];
int i;
/* Generate keystream for a DL burst */
osmo_a5(lchan->a5.algo, lchan->a5.key, fn, ks, NULL);
osmo_a5(lchan->a5.algo, lchan->a5.key, bi->fn, ks, NULL);
/* Apply keystream over ciphertext */
for (i = 0; i < 57; i++) {
if (ks[i])
burst[i + 3] *= -1;
bi->burst[i + 3] *= -1;
if (ks[i + 57])
burst[i + 88] *= -1;
bi->burst[i + 88] *= -1;
}
}
@ -782,7 +782,7 @@ int l1sched_handle_rx_burst(struct l1sched_state *sched,
/* Perform A5/X decryption if required */
if (lchan->a5.algo)
l1sched_a5_burst_dec(lchan, bi->fn, &bi->burst[0]);
l1sched_a5_burst_dec(lchan, bi);
/* Put burst to handler */
handler(lchan, bi);