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smscb: Prepare to fill in the info for CBCH in SI4

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Pass the number of bytes the rest octet for si4 should
fill.
This commit is contained in:
Holger Hans Peter Freyther
2010-12-29 23:06:22 +01:00
committed by Harald Welte
parent f86852ce0b
commit 7ff77ec713
3 changed files with 4 additions and 4 deletions
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2
openbsc/include/openbsc/rest_octets.h
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@@ -55,7 +55,7 @@ struct gsm48_si_ro_info {
int rest_octets_si3(uint8_t *data, const struct gsm48_si_ro_info *si3);
/* Generate SI4 Rest Octets (Chapter 10.5.2.35) */
int rest_octets_si4(uint8_t *data, const struct gsm48_si_ro_info *si4);
int rest_octets_si4(uint8_t *data, const struct gsm48_si_ro_info *si4, int len);
enum pbcch_carrier_type {
PBCCH_BCCH,

4
openbsc/src/libbsc/rest_octets.c
View File

@@ -141,13 +141,13 @@ static int append_lsa_params(struct bitvec *bv,
}
/* Generate SI4 Rest Octets (Chapter 10.5.2.35) */
int rest_octets_si4(uint8_t *data, const struct gsm48_si_ro_info *si4)
int rest_octets_si4(uint8_t *data, const struct gsm48_si_ro_info *si4, int len)
{
struct bitvec bv;
memset(&bv, 0, sizeof(bv));
bv.data = data;
bv.data_len = 10; /* FIXME: up to ? */
bv.data_len = len;
/* SI4 Rest Octets O */
append_selection_params(&bv, &si4->selection_params);

2
openbsc/src/libbsc/system_information.c
View File

@@ -595,7 +595,7 @@ static int generate_si4(uint8_t *output, struct gsm_bts *bts)
/* SI4 Rest Octets (10.5.2.35), containing
Optional Power offset, GPRS Indicator,
Cell Identity, LSA ID, Selection Parameter */
rc = rest_octets_si4(restoct, &si_info);
rc = rest_octets_si4(restoct, &si_info, output + GSM_MACBLOCK_LEN - restoct);
return l2_plen + 1 + rc;
}