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RSL: Allow disabling of BCCH/SACCH filling for given SI type 

If we want to instruct the BTS to stop sending a given SI, we must be
able to send the respective BCCH INFO / SACCH FILLING with a header but
without any L3 data IE.  This patch enables the related functions to do
this whenever their data argument points to NULL.

Change-Id: I88b85614951a108574f05db3b706884afe7e87a9
This commit is contained in:
Harald Welte 2017-07-15 23:56:12 +02:00 committed by Neels Hofmeyr
parent 9b5ace86a1
commit 942175ccd0
1 changed files with 8 additions and 4 deletions
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12
src/libbsc/abis_rsl.c
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@ -245,12 +245,14 @@ int rsl_bcch_info(const struct gsm_bts_trx *trx, enum osmo_sysinfo_type si_type,
&& type == RSL_SYSTEM_INFO_13) {
/* Ericsson proprietary encoding of SI13 */
msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, RSL_ERIC_SYSTEM_INFO_13);
msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
if (data)
msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
msgb_tv_put(msg, RSL_IE_ERIC_BCCH_MAPPING, 0x00);
} else {
/* Normal encoding */
msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
if (data)
msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
}
msg->dst = trx->rsl_link;
@ -269,7 +271,8 @@ int rsl_sacch_filling(struct gsm_bts_trx *trx, uint8_t type,
ch->msg_type = RSL_MT_SACCH_FILL;
msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
msgb_tl16v_put(msg, RSL_IE_L3_INFO, len, data);
if (data)
msgb_tl16v_put(msg, RSL_IE_L3_INFO, len, data);
msg->dst = trx->rsl_link;
@ -288,7 +291,8 @@ int rsl_sacch_info_modify(struct gsm_lchan *lchan, uint8_t type,
dh->chan_nr = chan_nr;
msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
msgb_tl16v_put(msg, RSL_IE_L3_INFO, len, data);
if (data)
msgb_tl16v_put(msg, RSL_IE_L3_INFO, len, data);
msg->dst = lchan->ts->trx->rsl_link;