diff options
Diffstat (limited to 'src/gb/gprs_bssgp_util.c')
| -rw-r--r-- | src/gb/gprs_bssgp_util.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gb/gprs_bssgp_util.c b/src/gb/gprs_bssgp_util.c index 3c42e4d4..19ae23a0 100644 --- a/src/gb/gprs_bssgp_util.c +++ b/src/gb/gprs_bssgp_util.c @@ -79,6 +79,36 @@ struct msgb *bssgp_msgb_alloc(void) return msg; } +struct msgb *bssgp_msgb_copy(const struct msgb *msg, const char *name) +{ + struct libgb_msgb_cb *old_cb, *new_cb; + struct msgb *new_msg; + + new_msg = msgb_copy(msg, name); + if (!new_msg) + return NULL; + + /* copy GB specific data */ + old_cb = LIBGB_MSGB_CB(msg); + new_cb = LIBGB_MSGB_CB(new_msg); + + if (old_cb->bssgph) + new_cb->bssgph = new_msg->_data + (old_cb->bssgph - msg->_data); + if (old_cb->llch) + new_cb->llch = new_msg->_data + (old_cb->llch - msg->_data); + + /* bssgp_cell_id is a pointer into the old msgb, so we need to make + * it a pointer into the new msgb */ + if (old_cb->bssgp_cell_id) + new_cb->bssgp_cell_id = new_msg->_data + + (old_cb->bssgp_cell_id - msg->_data); + new_cb->nsei = old_cb->nsei; + new_cb->bvci = old_cb->bvci; + new_cb->tlli = old_cb->tlli; + + return new_msg; +} + /* Transmit a simple response such as BLOCK/UNBLOCK/RESET ACK/NACK */ int bssgp_tx_simple_bvci(uint8_t pdu_type, uint16_t nsei, uint16_t bvci, uint16_t ns_bvci) |