$ ./dummy_msc <000c> osmo_ss7.c:295 1: Creating SS7 Instance <000c> osmo_ss7.c:572 1: Creating Route Table system <000c> osmo_ss7.c:764 1: Creating AS as-clnt-client <000c> fsm.c:204 XUA_AS(as-clnt-client)[0x167cab0]{AS_DOWN}: Allocated <000c> osmo_ss7.c:795 1: Adding ASP asp-clnt-client to AS as-clnt-client <000c> osmo_ss7.c:1015 1: Restarting ASP asp-clnt-client <0000> socket.c:149 unable to connect/bind socket: 127.0.0.2:2905: Connection refused <0002> stream.c:94 connection closed <0002> stream.c:97 retrying in 5 seconds... <000c> osmo_ss7.c:1042 1: Unable to open stream client for ASP asp-clnt-client <000c> fsm.c:204 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_DOWN}: Allocated <000c> osmo_ss7.c:375 registering user=SCCP for SI 3 with priv 0x167d4c0 <000d> sccp_user.c:81 Binding user 'msc' to SSN=254 PC=0 (pc_valid=0) <0002> stream.c:339 reconnecting. <0000> socket.c:149 unable to connect/bind socket: 127.0.0.2:2905: Connection refused <0002> stream.c:94 connection closed <0002> stream.c:97 retrying in 5 seconds... <0002> stream.c:339 reconnecting. <0002> stream.c:182 connection done. <000c> osmo_ss7.c:1224 asp-asp-clnt-client: Client connected (127.0.0.2:2905<->127.0.0.1:47149) <000c> osmo_ss7.c:1228 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_DOWN}: Received Event M-ASP_UP.req <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 12 (flags=32896) <000c> osmo_ss7.c:1131 asp-asp-clnt-client: xUA CLNT SCTP NOTIFICATION 32777 flags=0x0 <000c> osmo_ss7.c:1144 asp-asp-clnt-client: xUA CLNT SENDER_DRY_EVENT <0002> stream.c:203 connected write <0002> stream.c:128 sending data <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 12 (flags=32896) <000c> osmo_ss7.c:1131 asp-asp-clnt-client: xUA CLNT SCTP NOTIFICATION 32777 flags=0x0 <000c> osmo_ss7.c:1144 asp-asp-clnt-client: xUA CLNT SENDER_DRY_EVENT <0002> stream.c:203 connected write <0002> stream.c:128 sending data <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 8 (flags=128) <000f> m3ua.c:622 asp-asp-clnt-client: Received M3UA Message (ASPSM:UP-ACK) <000c> m3ua.c:587 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_DOWN}: Received Event ASPSM-ASP_UP_ACK <000c> xua_asp_fsm.c:265 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_DOWN}: T(ack) stopped <000c> xua_asp_fsm.c:314 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_DOWN}: state_chg to ASP_INACTIVE <000c> xua_asp_fsm.c:319 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_INACTIVE}: Received Event M-ASP_ACTIVE.req <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 16 (flags=128) <000f> m3ua.c:622 asp-asp-clnt-client: Received M3UA Message (MGMT:NOTIFY) <000f> m3ua.c:539 asp-asp-clnt-client: Received NOTIFY Type State Change:AS Inactive () <0002> stream.c:203 connected write <0002> stream.c:128 sending data <0002> stream.c:203 connected write <0002> stream.c:128 sending data <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 12 (flags=32896) <000c> osmo_ss7.c:1131 asp-asp-clnt-client: xUA CLNT SCTP NOTIFICATION 32777 flags=0x0 <000c> osmo_ss7.c:1144 asp-asp-clnt-client: xUA CLNT SENDER_DRY_EVENT <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 8 (flags=128) <000f> m3ua.c:622 asp-asp-clnt-client: Received M3UA Message (ASPTM:ACTIVE-ACK) <000c> m3ua.c:587 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_INACTIVE}: Received Event ASPTM-ASP_AC_ACK <000c> xua_asp_fsm.c:265 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_INACTIVE}: T(ack) stopped <000c> xua_asp_fsm.c:388 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_INACTIVE}: state_chg to ASP_ACTIVE <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 16 (flags=128) <000f> m3ua.c:622 asp-asp-clnt-client: Received M3UA Message (MGMT:NOTIFY) <000f> m3ua.c:539 asp-asp-clnt-client: Received NOTIFY Type State Change:AS Active () <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 48 (flags=128) <000f> m3ua.c:622 asp-asp-clnt-client: Received M3UA Message (XFER:DATA) <000e> sccp2sua.c:305 Parsed Addr: RI=7,PC=23,SSN=254,GTI=0 <000e> sccp2sua.c:305 Parsed Addr: RI=7,PC=1,SSN=254,GTI=0 <000c> sccp_scrc.c:427 scrc_rx_mtp_xfer_ind_xua: HDR=(CL:CLDT,V=0,LEN=0), PART(T=Protocol Class,L=4,D=00000000), PART(T=Destination Address,L=20,D=00020003800200080000001780030008000000fe), PART(T=Source Address,L=20,D=00020003800200080000000180030008000000fe), PART(T=Data,L=6,D=000430040120) <000e> sua.c:360 sua_addr_parse_part(IEI=0x0103) (20) 00 02 00 03 80 02 00 08 00 00 00 17 80 03 00 08 00 00 00 fe <000e> sua.c:414 SUA IEI 0x0103 pos 4/20: subpart tag 0x8002, len 8 <000e> sua.c:414 SUA IEI 0x0103 pos 12/20: subpart tag 0x8003, len 8 <000e> sua.c:360 sua_addr_parse_part(IEI=0x0103) (20) 00 02 00 03 80 02 00 08 00 00 00 17 80 03 00 08 00 00 00 fe <000e> sua.c:414 SUA IEI 0x0103 pos 4/20: subpart tag 0x8002, len 8 <000e> sua.c:414 SUA IEI 0x0103 pos 12/20: subpart tag 0x8003, len 8 <000e> sua.c:360 sua_addr_parse_part(IEI=0x0102) (20) 00 02 00 03 80 02 00 08 00 00 00 01 80 03 00 08 00 00 00 fe <000e> sua.c:414 SUA IEI 0x0102 pos 4/20: subpart tag 0x8002, len 8 <000e> sua.c:414 SUA IEI 0x0102 pos 12/20: subpart tag 0x8003, len 8 <000d> sccp_user.c:140 Delivering N-UNITDATAindication to SCCP User 'msc' =========================================== GOT SOMETHING! =========================================== <000d> sccp_scoc.c:1625 Received SCCP User Primitive N-UNITDATArequest) <000c> sccp_scrc.c:399 sccp_scrc_rx_sclc_msg: HDR=(CL:CLDT,V=0,LEN=0), PART(T=Routing Context,L=4,D=00000000), PART(T=Protocol Class,L=4,D=00000000), PART(T=Source Address,L=20,D=00020003800200080000001780030008000000fe), PART(T=Destination Address,L=20,D=00020003800200080000000180030008000000fe), PART(T=Sequence Control,L=4,D=00000000), PART(T=Data,L=3,D=000131) <000e> sua.c:360 sua_addr_parse_part(IEI=0x0103) (20) 00 02 00 03 80 02 00 08 00 00 00 01 80 03 00 08 00 00 00 fe <000e> sua.c:414 SUA IEI 0x0103 pos 4/20: subpart tag 0x8002, len 8 <000e> sua.c:414 SUA IEI 0x0103 pos 12/20: subpart tag 0x8003, len 8 <000e> sua.c:360 sua_addr_parse_part(IEI=0x0103) (20) 00 02 00 03 80 02 00 08 00 00 00 01 80 03 00 08 00 00 00 fe <000e> sua.c:414 SUA IEI 0x0103 pos 4/20: subpart tag 0x8002, len 8 <000e> sua.c:414 SUA IEI 0x0103 pos 12/20: subpart tag 0x8003, len 8 <000e> sua.c:360 sua_addr_parse_part(IEI=0x0102) (20) 00 02 00 03 80 02 00 08 00 00 00 17 80 03 00 08 00 00 00 fe <000e> sua.c:414 SUA IEI 0x0102 pos 4/20: subpart tag 0x8002, len 8 <000e> sua.c:414 SUA IEI 0x0102 pos 12/20: subpart tag 0x8003, len 8 <0002> stream.c:203 connected write <0002> stream.c:128 sending data <0002> stream.c:203 connected write <0002> stream.c:128 sending data <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 12 (flags=32896) <000c> osmo_ss7.c:1131 asp-asp-clnt-client: xUA CLNT SCTP NOTIFICATION 32777 flags=0x0 <000c> osmo_ss7.c:1144 asp-asp-clnt-client: xUA CLNT SENDER_DRY_EVENT <0002> stream.c:199 connected read <0002> stream.c:113 message received <000c> osmo_ss7.c:1250 asp-asp-clnt-client: xua_cli_read_cb(): sctp_recvmsg() returned 12 (flags=32896) <000c> osmo_ss7.c:1131 asp-asp-clnt-client: xUA CLNT SCTP NOTIFICATION 32773 flags=0x0 <000c> osmo_ss7.c:1144 asp-asp-clnt-client: xUA CLNT SHUTDOWN_EVENT <000c> osmo_ss7.c:1267 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_ACTIVE}: Received Event SCTP-COMM_DOWN.ind <000c> xua_asp_fsm.c:514 XUA_ASP(asp-clnt-client)[0x167d1a0]{ASP_ACTIVE}: state_chg to ASP_DOWN <0002> stream.c:94 connection closed <0002> stream.c:97 retrying in 5 seconds... ^C