diff options
| author | Harald Welte <laforge@gnumonks.org> | 2017-09-30 09:22:30 +0800 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2017-10-01 11:11:30 +0800 |
| commit | db1f75c3e305b87577d219365811fa5e5037a80d (patch) | |
| tree | e21e2ef1eb4dcc376a9c545e62280a3863f62657 /openbsc/src/libbsc/rest_octets.c | |
| parent | 725bcb71f07e572672bdeb878bb1fbd94bb44eba (diff) | |
Make sure BA-IND in all SI2xxx is '0' and in all SI5xxx is '1'
In masurement reports sent by the MS, this can then be used to correlate
if a given measurement report was in response to a BCCH/neighbor list
received on BCCH (SI2xxx) or on dowlink SACCH (SI5xxx).
Closes: OS#2525
Change-Id: I1cd0dc51026dcd0e508e63eea4e333e6b184787a
Diffstat (limited to 'openbsc/src/libbsc/rest_octets.c')
| -rw-r--r-- | openbsc/src/libbsc/rest_octets.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/openbsc/src/libbsc/rest_octets.c b/openbsc/src/libbsc/rest_octets.c index 78e7413a8..7b77ce217 100644 --- a/openbsc/src/libbsc/rest_octets.c +++ b/openbsc/src/libbsc/rest_octets.c @@ -361,8 +361,12 @@ int rest_octets_si2quater(uint8_t *data, struct gsm_bts *bts) bv.data_len = 20; bitvec_zero(&bv); - /* BA_IND */ - bitvec_set_bit(&bv, 1); + /* BA_IND: Set to '0' as that's what we use for SI2xxx type, + * whereas '1' is used for SI5xxx type messages. The point here + * is to be able to correlate whether a given MS measurement + * report was using the neighbor cells advertised in SI2 or in + * SI5, as those two could very well be different */ + bitvec_set_bit(&bv, 0); /* 3G_BA_IND */ bitvec_set_bit(&bv, 1); /* MP_CHANGE_MARK */ |