diff options
Diffstat (limited to 'src/xua_asp_fsm.c')
| -rw-r--r-- | src/xua_asp_fsm.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/xua_asp_fsm.c b/src/xua_asp_fsm.c index ff81edd..9f30559 100644 --- a/src/xua_asp_fsm.c +++ b/src/xua_asp_fsm.c @@ -168,6 +168,30 @@ static int determine_traf_mode(struct osmo_ss7_asp *asp) return tmode; } +/* add M3UA_IEI_ROUTE_CTX to xua_msg containig all routing keys of ASs within ASP */ +static int xua_msg_add_asp_rctx(struct xua_msg *xua, struct osmo_ss7_asp *asp) +{ + struct osmo_ss7_as *as; + uint32_t rctx[128]; + unsigned int i = 0; + + /* iterate over all ASs and build array of routing contexts */ + llist_for_each_entry(as, &asp->inst->as_list, list) { + if (!osmo_ss7_as_has_asp(as, asp)) + continue; + rctx[i++] = htonl(as->cfg.routing_key.context); + if (i >= ARRAY_SIZE(rctx)-1) { + break; + } + } + /* add xUA IE with routing contests to the message (if any) */ + if (i) + xua_msg_add_data(xua, M3UA_IEI_ROUTE_CTX, i*sizeof(uint32_t), (uint8_t *)rctx); + + /* return count of routing contexts added */ + return i; +} + /* ask the xUA implementation to transmit a specific message */ static int peer_send(struct osmo_fsm_inst *fi, int out_event, struct xua_msg *in) { @@ -220,6 +244,7 @@ static int peer_send(struct osmo_fsm_inst *fi, int out_event, struct xua_msg *in if (rc >= 0) xua_msg_add_u32(xua, M3UA_IEI_TRAF_MODE_TYP, osmo_ss7_tmode_to_xua(rc)); /* Optional: Routing Context */ + xua_msg_add_asp_rctx(xua, asp); /* Optional: TID Label */ /* Optional: DRN Label */ /* Optional: Info String */ @@ -237,6 +262,7 @@ static int peer_send(struct osmo_fsm_inst *fi, int out_event, struct xua_msg *in /* RFC3868 Ch. 3.6.3 */ xua->hdr = XUA_HDR(SUA_MSGC_ASPTM, SUA_ASPTM_INACTIVE); /* Optional: Routing Context */ + xua_msg_add_asp_rctx(xua, asp); /* Optional: Info String */ break; case XUA_ASP_E_ASPTM_ASPIA_ACK: |