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libosmo-gprs
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llc: use GRR instead of BSSGP to tx XID.req in MS mode 

Change-Id: Ib2ada2cc7160202f9da5b177da8263076e1eef69
This commit is contained in:
Pau Espin 2023-05-03 13:05:24 +02:00
parent d06e29bc9d
commit dbb588df52
1 changed files with 12 additions and 4 deletions
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16
src/llc/llc.c
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@ -266,7 +266,10 @@ int gprs_llc_lle_tx_xid(const struct gprs_llc_lle *lle, uint8_t *xid_payload, un
gprs_llc_encode_is_cmd_as_cr(is_cmd, &pdu_dec.flags);
/* LLC payload is put directly below: */
llc_prim = gprs_llc_prim_alloc_bssgp_dl_unitdata_req(lle->llme->tlli, NULL, 4096 - sizeof(llc_prim));
if (g_llc_ctx->location == OSMO_GPRS_LLC_LOCATION_SGSN)
llc_prim = gprs_llc_prim_alloc_bssgp_dl_unitdata_req(lle->llme->tlli, NULL, 4096 - sizeof(llc_prim));
else
llc_prim = gprs_llc_prim_alloc_grr_unitdata_req(lle->llme->tlli, NULL, 4096 - sizeof(llc_prim));
msg = llc_prim->oph.msg;
msg->l3h = msg->tail;
@ -276,10 +279,15 @@ int gprs_llc_lle_tx_xid(const struct gprs_llc_lle *lle, uint8_t *xid_payload, un
msgb_free(msg);
return rc;
}
llc_prim->bssgp.ll_pdu = msgb_l3(msg);
llc_prim->bssgp.ll_pdu_len = msgb_l3len(msg);
if (g_llc_ctx->location == OSMO_GPRS_LLC_LOCATION_MS) {
llc_prim->bssgp.ll_pdu = msgb_l3(msg);
llc_prim->bssgp.ll_pdu_len = msgb_l3len(msg);
} else {
llc_prim->grr.ll_pdu = msgb_l3(msg);
llc_prim->grr.ll_pdu_len = msgb_l3len(msg);
}
/* Send BSSGP-DL-UNITDATA.req */
/* Send GRR-UNITDATA.req */
gprs_llc_prim_call_down_cb(llc_prim);
return 0;
}