Harald Welte | b66c5d0 | 2016-01-03 18:04:28 +0100 | [diff] [blame] | 1 | #include <stdint.h> |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 2 | #include <osmocom/netif/stream.h> |
| 3 | |
Neels Hofmeyr | 8345792 | 2016-08-26 23:56:44 +0200 | [diff] [blame] | 4 | #include <osmocom/rua/rua_common.h> |
| 5 | #include <osmocom/rua/rua_ies_defs.h> |
Neels Hofmeyr | df63de2 | 2016-08-18 13:13:55 +0200 | [diff] [blame] | 6 | #include <osmocom/rua/rua_msg_factory.h> |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 7 | #include "asn1helpers.h" |
Neels Hofmeyr | df63de2 | 2016-08-18 13:13:55 +0200 | [diff] [blame] | 8 | #include <osmocom/iuh/hnbgw.h> |
Harald Welte | b66c5d0 | 2016-01-03 18:04:28 +0100 | [diff] [blame] | 9 | |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 10 | |
| 11 | struct msgb *rua_new_udt(struct msgb *inmsg) |
| 12 | { |
| 13 | RUA_ConnectionlessTransfer_t out; |
| 14 | RUA_ConnectionlessTransferIEs_t ies; |
| 15 | struct msgb *msg; |
| 16 | int rc; |
| 17 | |
| 18 | memset(&ies, 0, sizeof(ies)); |
Harald Welte | b66c5d0 | 2016-01-03 18:04:28 +0100 | [diff] [blame] | 19 | OCTET_STRING_fromBuf(&ies.ranaP_Message, inmsg->data, msgb_length(inmsg)); |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 20 | msgb_free(inmsg); |
| 21 | |
| 22 | memset(&out, 0, sizeof(out)); |
| 23 | rc = rua_encode_connectionlesstransferies(&out, &ies); |
| 24 | if (rc < 0) |
| 25 | return NULL; |
| 26 | |
| 27 | msg = rua_generate_initiating_message(RUA_ProcedureCode_id_ConnectionlessTransfer, |
| 28 | RUA_Criticality_reject, |
| 29 | &asn_DEF_RUA_ConnectionlessTransfer, |
| 30 | &out); |
| 31 | |
| 32 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RUA_ConnectionlessTransfer, &out); |
| 33 | |
| 34 | DEBUGP(DMAIN, "transmitting RUA payload of %u bytes\n", msgb_length(msg)); |
| 35 | |
| 36 | msgb_sctp_ppid(msg) = IUH_PPI_RUA; |
| 37 | |
| 38 | return msg; |
| 39 | } |
| 40 | |
| 41 | struct msgb *rua_new_conn(int is_ps, uint32_t context_id, struct msgb *inmsg) |
| 42 | { |
| 43 | RUA_Connect_t out; |
| 44 | RUA_ConnectIEs_t ies; |
| 45 | struct msgb *msg; |
| 46 | uint32_t ctxidbuf; |
| 47 | int rc; |
| 48 | |
| 49 | memset(&ies, 0, sizeof(ies)); |
| 50 | if (is_ps) |
| 51 | ies.cN_DomainIndicator = RUA_CN_DomainIndicator_ps_domain; |
| 52 | else |
| 53 | ies.cN_DomainIndicator = RUA_CN_DomainIndicator_cs_domain; |
| 54 | asn1_u24_to_bitstring(&ies.context_ID, &ctxidbuf, context_id); |
| 55 | ies.establishment_Cause = RUA_Establishment_Cause_normal_call; |
Harald Welte | b66c5d0 | 2016-01-03 18:04:28 +0100 | [diff] [blame] | 56 | OCTET_STRING_fromBuf(&ies.ranaP_Message, inmsg->data, msgb_length(inmsg)); |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 57 | msgb_free(inmsg); |
| 58 | |
| 59 | memset(&out, 0, sizeof(out)); |
| 60 | rc = rua_encode_connecties(&out, &ies); |
| 61 | if (rc < 0) |
| 62 | return NULL; |
| 63 | |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 64 | msg = rua_generate_initiating_message(RUA_ProcedureCode_id_Connect, |
| 65 | RUA_Criticality_reject, |
| 66 | &asn_DEF_RUA_Connect, |
| 67 | &out); |
| 68 | |
| 69 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RUA_Connect, &out); |
| 70 | |
| 71 | DEBUGP(DMAIN, "transmitting RUA payload of %u bytes\n", msgb_length(msg)); |
| 72 | |
| 73 | msgb_sctp_ppid(msg) = IUH_PPI_RUA; |
| 74 | |
| 75 | return msg; |
| 76 | } |
| 77 | |
| 78 | struct msgb *rua_new_dt(int is_ps, uint32_t context_id, struct msgb *inmsg) |
| 79 | { |
| 80 | RUA_DirectTransfer_t out; |
| 81 | RUA_DirectTransferIEs_t ies; |
| 82 | struct msgb *msg; |
| 83 | uint32_t ctxidbuf; |
| 84 | int rc; |
| 85 | |
| 86 | memset(&ies, 0, sizeof(ies)); |
| 87 | if (is_ps) |
| 88 | ies.cN_DomainIndicator = RUA_CN_DomainIndicator_ps_domain; |
| 89 | else |
| 90 | ies.cN_DomainIndicator = RUA_CN_DomainIndicator_cs_domain; |
| 91 | asn1_u24_to_bitstring(&ies.context_ID, &ctxidbuf, context_id); |
Harald Welte | b66c5d0 | 2016-01-03 18:04:28 +0100 | [diff] [blame] | 92 | OCTET_STRING_fromBuf(&ies.ranaP_Message, inmsg->data, msgb_length(inmsg)); |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 93 | msgb_free(inmsg); |
| 94 | |
| 95 | memset(&out, 0, sizeof(out)); |
| 96 | rc = rua_encode_directtransferies(&out, &ies); |
| 97 | if (rc < 0) |
| 98 | return NULL; |
| 99 | |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 100 | msg = rua_generate_initiating_message(RUA_ProcedureCode_id_DirectTransfer, |
| 101 | RUA_Criticality_reject, |
| 102 | &asn_DEF_RUA_DirectTransfer, |
| 103 | &out); |
| 104 | |
| 105 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RUA_DirectTransfer, &out); |
| 106 | |
| 107 | DEBUGP(DMAIN, "transmitting RUA payload of %u bytes\n", msgb_length(msg)); |
| 108 | |
| 109 | msgb_sctp_ppid(msg) = IUH_PPI_RUA; |
| 110 | |
| 111 | return msg; |
| 112 | } |
| 113 | |
| 114 | struct msgb *rua_new_disc(int is_ps, uint32_t context_id, struct msgb *inmsg) |
| 115 | { |
| 116 | RUA_Disconnect_t out; |
| 117 | RUA_DisconnectIEs_t ies; |
| 118 | struct msgb *msg; |
| 119 | uint32_t ctxidbuf; |
| 120 | int rc; |
| 121 | |
| 122 | memset(&ies, 0, sizeof(ies)); |
| 123 | if (is_ps) |
| 124 | ies.cN_DomainIndicator = RUA_CN_DomainIndicator_ps_domain; |
| 125 | else |
| 126 | ies.cN_DomainIndicator = RUA_CN_DomainIndicator_cs_domain; |
| 127 | asn1_u24_to_bitstring(&ies.context_ID, &ctxidbuf, context_id); |
| 128 | /* FIXME: make cause configurable */ |
| 129 | ies.cause.present = RUA_Cause_PR_radioNetwork; |
| 130 | ies.cause.choice.radioNetwork = RUA_CauseRadioNetwork_normal; |
| 131 | if (inmsg && inmsg->data&& msgb_length(inmsg)) { |
| 132 | ies.presenceMask |= DISCONNECTIES_RUA_RANAP_MESSAGE_PRESENT; |
Harald Welte | b66c5d0 | 2016-01-03 18:04:28 +0100 | [diff] [blame] | 133 | OCTET_STRING_fromBuf(&ies.ranaP_Message, inmsg->data, msgb_length(inmsg)); |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 134 | } |
Harald Welte | cee5a28 | 2015-12-26 08:43:31 +0100 | [diff] [blame] | 135 | msgb_free(inmsg); |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 136 | |
| 137 | memset(&out, 0, sizeof(out)); |
| 138 | rc = rua_encode_disconnecties(&out, &ies); |
| 139 | if (rc < 0) |
| 140 | return NULL; |
| 141 | |
Harald Welte | 7ac7e04 | 2015-12-24 15:53:30 +0100 | [diff] [blame] | 142 | msg = rua_generate_initiating_message(RUA_ProcedureCode_id_Disconnect, |
| 143 | RUA_Criticality_reject, |
| 144 | &asn_DEF_RUA_Disconnect, |
| 145 | &out); |
| 146 | |
| 147 | ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RUA_Disconnect, &out); |
| 148 | |
| 149 | DEBUGP(DMAIN, "transmitting RUA payload of %u bytes\n", msgb_length(msg)); |
| 150 | |
| 151 | msgb_sctp_ppid(msg) = IUH_PPI_RUA; |
| 152 | |
| 153 | return msg; |
| 154 | } |