diff options
| -rw-r--r-- | src/osmo-bts-sysmo/oml.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/osmo-bts-sysmo/oml.c b/src/osmo-bts-sysmo/oml.c index 596680fe..7fcd4c6d 100644 --- a/src/osmo-bts-sysmo/oml.c +++ b/src/osmo-bts-sysmo/oml.c @@ -704,17 +704,24 @@ err: uint32_t l1if_lchan_to_hLayer(struct gsm_lchan *lchan) { - return (lchan->nr << 8) | (lchan->ts->nr << 16) | (lchan->ts->trx->nr << 24); + return 0xBB + | (lchan->nr << 8) + | (lchan->ts->nr << 16) + | (lchan->ts->trx->nr << 24); } /* obtain a ptr to the lapdm_channel for a given hLayer */ struct gsm_lchan * l1if_hLayer_to_lchan(struct gsm_bts_trx *trx, uint32_t hLayer2) { + uint8_t magic = hLayer2 & 0xff; uint8_t ts_nr = (hLayer2 >> 16) & 0xff; uint8_t lchan_nr = (hLayer2 >> 8)& 0xff; struct gsm_bts_trx_ts *ts; + if (magic != 0xBB) + return NULL; + /* FIXME: if we actually run on the BTS, the 32bit field is large * enough to simply put a pointer inside. */ if (ts_nr >= ARRAY_SIZE(trx->ts)) |