diff options
Diffstat (limited to 'openbsc/src/libbsc/rest_octets.c')
| -rw-r--r-- | openbsc/src/libbsc/rest_octets.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/openbsc/src/libbsc/rest_octets.c b/openbsc/src/libbsc/rest_octets.c index aa286e578..065fb7b35 100644 --- a/openbsc/src/libbsc/rest_octets.c +++ b/openbsc/src/libbsc/rest_octets.c @@ -450,6 +450,45 @@ int rest_octets_si4(uint8_t *data, const struct gsm48_si_ro_info *si4, int len) return bv.data_len; } + +/* GSM 04.18 ETSI TS 101 503 V8.27.0 (2006-05) + +<SI6 rest octets> ::= +{L | H <PCH and NCH info>} +{L | H <VBS/VGCS options : bit(2)>} +{ < DTM_support : bit == L > I < DTM_support : bit == H > +< RAC : bit (8) > +< MAX_LAPDm : bit (3) > } +< Band indicator > +{ L | H < GPRS_MS_TXPWR_MAX_CCH : bit (5) > } +<implicit spare >; +*/ +int rest_octets_si6(uint8_t *data, bool is1800_net) +{ + struct bitvec bv; + + memset(&bv, 0, sizeof(bv)); + bv.data = data; + bv.data_len = 1; + + /* no PCH/NCH info */ + bitvec_set_bit(&bv, L); + /* no VBS/VGCS options */ + bitvec_set_bit(&bv, L); + /* no DTM_support */ + bitvec_set_bit(&bv, L); + /* band indicator */ + if (is1800_net) + bitvec_set_bit(&bv, L); + else + bitvec_set_bit(&bv, H); + /* no GPRS_MS_TXPWR_MAX_CCH */ + bitvec_set_bit(&bv, L); + + bitvec_spare_padding(&bv, (bv.data_len * 8) - 1); + return bv.data_len; +} + /* GPRS Mobile Allocation as per TS 04.60 Chapter 12.10a: < GPRS Mobile Allocation IE > ::= < HSN : bit (6) > |