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[RSL] hopping: Set correct L2 pseudo-length during IMMediate ASSign 

Thanks to Sylvain for the hint that lead to this fix.
This commit is contained in:
laforge 2010-06-21 12:08:52 +02:00 committed by Harald Welte
parent a69d923fd7
commit cfa4a01c8f
1 changed files with 4 additions and 1 deletions
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5
openbsc/src/abis_rsl.c
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@ -1132,6 +1132,8 @@ static void t3111_expired(void *data)
rsl_rf_chan_release(lchan, 0);
}
#define GSM48_LEN2PLEN(a) (((a) << 2) | 1)
/* MS has requested a channel on the RACH */
static int rsl_rx_chan_rqd(struct msgb *msg)
{
@ -1196,7 +1198,7 @@ static int rsl_rx_chan_rqd(struct msgb *msg)
/* create IMMEDIATE ASSIGN 04.08 messge */
memset(ia, 0, sizeof(*ia));
ia->l2_plen = 0x2d;
/* we set ia->l2_plen once we know the length of the MA below */
ia->proto_discr = GSM48_PDISC_RR;
ia->msg_type = GSM48_MT_RR_IMM_ASS;
ia->page_mode = GSM48_PM_SAME;
@ -1211,6 +1213,7 @@ static int rsl_rx_chan_rqd(struct msgb *msg)
ia->mob_alloc_len = lchan->ts->hopping.ma_len;
memcpy(ia->mob_alloc, lchan->ts->hopping.ma_data, ia->mob_alloc_len);
}
ia->l2_plen = GSM48_LEN2PLEN(sizeof(*ia) + ia->mob_alloc_len);
DEBUGP(DRSL, "%s Activating ARFCN(%u) SS(%u) lctype %s "
"r=%s ra=0x%02x\n", gsm_lchan_name(lchan), arfcn, subch,