re-structure SS7 code and MGW NAT code into separate modules
This repository now only contains the SS7 code
diff --git a/include/bssmap.hrl b/include/bssmap.hrl
new file mode 100644
index 0000000..9149e40
--- /dev/null
+++ b/include/bssmap.hrl
@@ -0,0 +1,263 @@
+% From libosmocore gsm_08_08.h
+
+% this is from GSM 03.03 CGI but is copied in GSM 08.08
+% in § 3.2.2.27 for Cell Identifier List
+-define(CELL_ID_WHOLE_GLOBAL, 0).
+-define(CELL_ID_LAC_AND_CI, 1).
+-define(CELL_ID_CI, 2).
+-define(CELL_ID_NO_CELL, 3).
+-define(CELL_ID_LAI_AND_LAC, 4).
+-define(CELL_ID_LAC, 5).
+-define(CELL_ID_BSS, 6).
+-define(CELL_ID_UTRAN_PLMN_LAC_RNC, 8).
+-define(CELL_ID_UTRAN_RNC, 9).
+-define(CELL_ID_UTRAN_LAC_RNC, 10).
+
+% GSM 08.06 § 6.3
+-define(BSSAP_MSG_BSS_MANAGEMENT, 16#0).
+-define(BSSAP_MSG_DTAP, 16#1).
+
+% enum BSSMAP_MSG_TYPE {
+-define(BSSMAP_MSG_RESERVED_0, 0).
+% ASSIGNMENT MESSAGES
+-define(BSSMAP_MSG_ASS_RQST, 1).
+-define(BSSMAP_MSG_ASS_COMPL, 2).
+-define(BSSMAP_MSG_ASS_FAILURE, 3).
+% HANDOVER MESSAGES
+-define(BSSMAP_MSG_HO_REQ, 16).
+-define(BSSMAP_MSG_HO_REQUIRED, 17).
+-define(BSSMAP_MSG_HO_REQ_ACK, 18).
+-define(BSSMAP_MSG_HO_CMD, 19).
+-define(BSSMAP_MSG_HO_COMPL, 20).
+-define(BSSMAP_MSG_HO_SUCCEEDED, 21).
+-define(BSSMAP_MSG_HO_FAILURE, 22).
+-define(BSSMAP_MSG_HO_PERFORMED, 23).
+-define(BSSMAP_MSG_HO_CAND_ENQ, 24).
+-define(BSSMAP_MSG_HO_CAND_RESP, 25).
+-define(BSSMAP_MSG_HO_REQUIRED_REJ, 26).
+-define(BSSMAP_MSG_HO_DETECT, 27).
+% RELEASE MESSAGES
+-define(BSSMAP_MSG_CLEAR_CMD, 32).
+-define(BSSMAP_MSG_CLEAR_COMPL, 33).
+-define(BSSMAP_MSG_CLEAR_RQST, 34).
+-define(BSSMAP_MSG_RESERVED_1, 35).
+-define(BSSMAP_MSG_RESERVED_2, 36).
+-define(BSSMAP_MSG_SAPI_N_REJ, 37).
+-define(BSSMAP_MSG_CONFUSION, 38).
+% OTHER CONNECTION RELATED MESSAGES
+-define(BSSMAP_MSG_SUSPEND, 40).
+-define(BSSMAP_MSG_RESUME, 41).
+-define(BSSMAP_MSG_CONN_ORIENT_INFO, 42).
+-define(BSSMAP_MSG_PERFORM_LOC_RQST, 43).
+-define(BSSMAP_MSG_LSA_INFORMATION, 44).
+-define(BSSMAP_MSG_PERFORM_LOC_RESPONSE, 45).
+-define(BSSMAP_MSG_PERFORM_LOC_ABORT, 46).
+-define(BSSMAP_MSG_COMMON_ID, 47).
+% GENERAL MESSAGES
+-define(BSSMAP_MSG_RESET, 48).
+-define(BSSMAP_MSG_RESET_ACK, 49).
+-define(BSSMAP_MSG_OVERLOAD, 50).
+-define(BSSMAP_MSG_RESERVED_3, 51).
+-define(BSSMAP_MSG_RESET_CIRC, 52).
+-define(BSSMAP_MSG_RESET_CIRC_ACK, 53).
+-define(BSSMAP_MSG_MSC_INVOKE_TRACE, 54).
+-define(BSSMAP_MSG_BSS_INVOKE_TRACE, 55).
+-define(BSSMAP_MSG_CONN_LESS_INFO, 58).
+% TERRESTRIAL RESOURCE MESSAGES
+-define(BSSMAP_MSG_BLOCK, 64).
+-define(BSSMAP_MSG_BLOCKING_ACK, 65).
+-define(BSSMAP_MSG_UNBLOCK, 66).
+-define(BSSMAP_MSG_UNBLOCKING_ACK, 67).
+-define(BSSMAP_MSG_CIRC_GROUP_BLOCK, 68).
+-define(BSSMAP_MSG_CIRC_GROUP_BLOCKING_ACK, 69).
+-define(BSSMAP_MSG_CIRC_GROUP_UNBLOCK, 70).
+-define(BSSMAP_MSG_CIRC_GROUP_UNBLOCKING_ACK, 71).
+-define(BSSMAP_MSG_UNEQUIPPED_CIRCUIT, 72).
+-define(BSSMAP_MSG_CHANGE_CIRCUIT, 78).
+-define(BSSMAP_MSG_CHANGE_CIRCUIT_ACK, 79).
+% RADIO RESOURCE MESSAGES
+-define(BSSMAP_MSG_RESOURCE_RQST, 80).
+-define(BSSMAP_MSG_RESOURCE_INDICATION, 81).
+-define(BSSMAP_MSG_PAGING, 82).
+-define(BSSMAP_MSG_CIPHER_MODE_CMD, 83).
+-define(BSSMAP_MSG_CLASSMARK_UPDATE, 84).
+-define(BSSMAP_MSG_CIPHER_MODE_COMPL, 85).
+-define(BSSMAP_MSG_QUEUING_INDICATION, 86).
+-define(BSSMAP_MSG_COMPL_LAYER_3, 87).
+-define(BSSMAP_MSG_CLASSMARK_RQST, 88).
+-define(BSSMAP_MSG_CIPHER_MODE_REJ, 89).
+-define(BSSMAP_MSG_LOAD_INDICATION, 90).
+% VGCS/VBS
+-define(BSSMAP_MSG_VGCS_VBS_SETUP, 4).
+-define(BSSMAP_MSG_VGCS_VBS_SETUP_ACK, 5).
+-define(BSSMAP_MSG_VGCS_VBS_SETUP_REFUSE, 6).
+-define(BSSMAP_MSG_VGCS_VBS_ASS_RQST, 7).
+-define(BSSMAP_MSG_VGCS_VBS_ASS_RESULT, 28).
+-define(BSSMAP_MSG_VGCS_VBS_ASS_FAILURE, 29).
+-define(BSSMAP_MSG_VGCS_VBS_QUEUING_INDICATION, 30).
+-define(BSSMAP_MSG_UPLINK_RQST, 31).
+-define(BSSMAP_MSG_UPLINK_RQST_ACK, 39).
+-define(BSSMAP_MSG_UPLINK_RQST_CONFIRMATION, 73).
+-define(BSSMAP_MSG_UPLINK_RELEASE_INDICATION, 74).
+-define(BSSMAP_MSG_UPLINK_REJ_CMD, 75).
+-define(BSSMAP_MSG_UPLINK_RELEASE_CMD, 76).
+-define(BSSMAP_MSG_UPLINK_SEIZED_CMD, 77).
+
+% enum BSSMAP_IE_CODING {
+-define(BSSMAP_IE_CIRC_ID_CODE, 1). % TV16
+%-define(BSSMAP_IE_RESERVED_0, 2).
+-define(BSSMAP_IE_RES_AVAIL, 3). % TVf
+-define(BSSMAP_IE_CAUSE, 4). % TLV
+-define(BSSMAP_IE_CELL_ID, 5). % TLV
+-define(BSSMAP_IE_PRIORITY, 6). % TLV
+-define(BSSMAP_IE_L3_HDR_INFO, 7). % TLV
+-define(BSSMAP_IE_IMSI, 8). % TLV
+-define(BSSMAP_IE_TMSI, 9). % TLV
+-define(BSSMAP_IE_ENCR_INFO, 10). % TLV
+-define(BSSMAP_IE_CHANNEL_TYPE, 11). % TLV
+-define(BSSMAP_IE_PERIODICITY, 12). % TV
+-define(BSSMAP_IE_EXTD_RES_IND, 13). % TV
+-define(BSSMAP_IE_NUMBER_OF_MSS, 14). % TV
+%-define(BSSMAP_IE_RESERVED_1, 15).
+%-define(BSSMAP_IE_RESERVED_2, 16).
+%-define(BSSMAP_IE_RESERVED_3, 17).
+-define(BSSMAP_IE_CM_INFO_T2, 18). % TLV
+-define(BSSMAP_IE_CM_INFO_T3, 19). % TLV
+-define(BSSMAP_IE_INTERF_BAND_TO_USE, 20). % TV
+-define(BSSMAP_IE_RR_CAUSE, 21). % TV
+%-define(BSSMAP_IE_RESERVED_4, 22).
+-define(BSSMAP_IE_L3_INFO, 23). % TLV
+-define(BSSMAP_IE_DLCI, 24). % TV
+-define(BSSMAP_IE_DOWNLINK_DTX_FLAG, 25). % TV
+-define(BSSMAP_IE_CELL_ID_LIST, 26). % TLV
+-define(BSSMAP_IE_RESPONSE_RQST, 27). % TV
+-define(BSSMAP_IE_RES_IND_METHOD, 28). % TV
+-define(BSSMAP_IE_CM_INFO_T1, 29). % TV
+-define(BSSMAP_IE_CIRC_ID_CODE_LIST, 30). % TLV
+-define(BSSMAP_IE_DIAGNOSTIC, 31). % TLV
+-define(BSSMAP_IE_L3_MSG_CONTENTS, 32). % TLV
+-define(BSSMAP_IE_CHOSEN_CHANNEL, 33). % TV
+-define(BSSMAP_IE_TOT_RES_ACCESS, 34). % TVf
+-define(BSSMAP_IE_CIPH_RESP_MODE, 35). % TV
+-define(BSSMAP_IE_CHANNEL_NEEDED, 36). % TV
+-define(BSSMAP_IE_TRACE_TYPE, 37). % TV
+-define(BSSMAP_IE_TRIGGERID, 38). % TLV
+-define(BSSMAP_IE_TRACE_REFERENCE, 39). % TV
+-define(BSSMAP_IE_TRANSACTIONID, 40). % TLV
+-define(BSSMAP_IE_MOBILE_IDENTITY, 41). % TLV
+-define(BSSMAP_IE_OMCID, 42). % TLV
+-define(BSSMAP_IE_FORWARD_INDICATOR, 43). % TV
+-define(BSSMAP_IE_CHOSEN_ENCR_ALG, 44). % TV
+-define(BSSMAP_IE_CIRCUIT_POOL, 45). % TV
+-define(BSSMAP_IE_CIRCUIT_POOL_LIST, 46). % TLV
+-define(BSSMAP_IE_TIME_INDICATION, 47). % TV
+-define(BSSMAP_IE_RESOURCE_SITUATION, 48). % TLV
+-define(BSSMAP_IE_CUR_CHAN_TYPE_1, 49). % TV
+-define(BSSMAP_IE_QUEUEING_IND, 50). % TV
+-define(BSSMAP_IE_SPEECH_VERSION, 64). % TV
+-define(BSSMAP_IE_ASS_REQUIREMENT, 51). % TV
+-define(BSSMAP_IE_TALKER_FLAG, 53). % T
+-define(BSSMAP_IE_CONN_REL_RQSTED, 54). % T
+-define(BSSMAP_IE_GROUP_CALL_REFERENCE, 55). % TLV
+-define(BSSMAP_IE_EMLPP_PRIORITY, 56). % TV
+-define(BSSMAP_IE_CONFIG_EVO_INDI, 57). % TV
+-define(BSSMAP_IE_OLD_TO_NEW_BSS_INFO, 58). % TLV
+-define(BSSMAP_IE_LSA_IDENTIFIER, 59). % TLV
+-define(BSSMAP_IE_LSA_IDENTIFIER_LIST, 60). % TLV
+-define(BSSMAP_IE_LSA_INFORMATION, 61). % TLV
+-define(BSSMAP_IE_LCS_QOS, 62). % TLV
+-define(BSSMAP_IE_LSA_ACCESS_CTRL_SUPPR, 63). % TV
+-define(BSSMAP_IE_LCS_PRIORITY, 67). % TLV
+-define(BSSMAP_IE_LOCATION_TYPE, 68). % TLV
+-define(BSSMAP_IE_LOCATION_ESTIMATE, 69). % TLV
+-define(BSSMAP_IE_POSITIONING_DATA, 70). % TLV
+-define(BSSMAP_IE_LCS_CAUSE, 71). % TLV
+-define(BSSMAP_IE_LCS_CLIENT_TYPE, 72). % TLV
+-define(BSSMAP_IE_APDU, 73). % TLV
+-define(BSSMAP_IE_NETWORK_ELEMENT_ID, 74). % TLV
+-define(BSSMAP_IE_GPS_ASSISTANCE_DATA, 75). % TLV
+-define(BSSMAP_IE_DECIPHERING_KEYS, 76). % TLV
+-define(BSSMAP_IE_RETURN_ERROR_RQST, 77). % TLV
+-define(BSSMAP_IE_RETURN_ERROR_CAUSE, 78). % TLV
+-define(BSSMAP_IE_SEGMENTATION, 79). % TLV
+-define(BSSMAP_IE_SERVICE_HANDOVER, 80). % TLV
+-define(BSSMAP_IE_SRC_TGT_RNC_TRANSP_UMTS, 81). % TLV
+-define(BSSMAP_IE_SRC_TGT_RNC_TRANSP_CDMA2K, 82). % TLV
+%-define(BSSMAP_IE_RESERVED_5, 65).
+%-define(BSSMAP_IE_RESERVED_6, 66).
+
+% enum gsm0808_cause {
+-define(BSSMAP_CAUSE_RIF_MSG_FAILURE, 0).
+-define(BSSMAP_CAUSE_RIF_FAILURE, 1).
+-define(BSSMAP_CAUSE_UPLINK_QUALITY, 2).
+-define(BSSMAP_CAUSE_UPLINK_STRENGTH, 3).
+-define(BSSMAP_CAUSE_DOWNLINK_QUALITY, 4).
+-define(BSSMAP_CAUSE_DOWNLINK_STRENGTH, 5).
+-define(BSSMAP_CAUSE_DISTANCE, 6).
+-define(BSSMAP_CAUSE_O_AND_M_INTERVENTION, 7).
+-define(BSSMAP_CAUSE_RESPONSE_TO_MSC_INVOCATION, 8).
+-define(BSSMAP_CAUSE_CALL_CONTROL, 9).
+-define(BSSMAP_CAUSE_RIF_FAILURE_REVERSION, 10).
+-define(BSSMAP_CAUSE_HO_SUCCESSFUL, 11).
+-define(BSSMAP_CAUSE_BETTER_CELL, 12).
+-define(BSSMAP_CAUSE_DIRECTED_RETRY, 13).
+-define(BSSMAP_CAUSE_JOINED_GROUP_CALL_CHANNEL, 14).
+-define(BSSMAP_CAUSE_TRAFFIC, 15).
+-define(BSSMAP_CAUSE_EQUIPMENT_FAILURE, 32).
+-define(BSSMAP_CAUSE_NO_RR_AVAILABLE, 33).
+-define(BSSMAP_CAUSE_RQSTED_TERR_RES_UNAVAIL, 34).
+-define(BSSMAP_CAUSE_CCCH_OVERLOAD, 35).
+-define(BSSMAP_CAUSE_PROCESSOR_OVERLOAD, 36).
+-define(BSSMAP_CAUSE_BSS_NOT_EQUIPPED, 37).
+-define(BSSMAP_CAUSE_MS_NOT_EQUIPPED, 38).
+-define(BSSMAP_CAUSE_INVALID_CELL, 39).
+-define(BSSMAP_CAUSE_TRAFFIC_LOAD, 40).
+-define(BSSMAP_CAUSE_PREEMPTION, 41).
+-define(BSSMAP_CAUSE_RQSTED_TRANSC_RA_UNAVAIL, 48).
+-define(BSSMAP_CAUSE_CIRCUIT_POOL_MISMATCH, 49).
+-define(BSSMAP_CAUSE_SWITCH_CIRCUIT_POOL, 50).
+-define(BSSMAP_CAUSE_RQSTED_SPEECH_V_UNAVAIL, 51).
+-define(BSSMAP_CAUSE_LSA_NOT_ALLOWED, 52).
+-define(BSSMAP_CAUSE_CIPH_ALG_NOT_SUPPORTED, 64).
+-define(BSSMAP_CAUSE_TERR_CIRC_ALLOCATED, 80).
+-define(BSSMAP_CAUSE_INV_MSG_CONTENTS, 81).
+-define(BSSMAP_CAUSE_IE_OR_FIELD_MISSING, 82).
+-define(BSSMAP_CAUSE_INCORRECT_VALUE, 83).
+-define(BSSMAP_CAUSE_UNKNOWN_MSG_TYPE, 84).
+-define(BSSMAP_CAUSE_UNKNOWN_IE, 85).
+-define(BSSMAP_CAUSE_PROT_ERR_BSS_AND_MSC, 96).
+
+% GSM 08.08 3.2.2.11 Channel Type
+% enum gsm0808_chan_indicator {
+-define(BSSMAP_CHAN_SPEECH, 1).
+-define(BSSMAP_CHAN_DATA, 2).
+-define(BSSMAP_CHAN_SIGN, 3).
+
+% enum gsm0808_chan_rate_type_data {
+-define(BSSMAP_DATA_FULL_BM, 16#8).
+-define(BSSMAP_DATA_HALF_LM, 16#9).
+-define(BSSMAP_DATA_FULL_RPREF, 16#a).
+-define(BSSMAP_DATA_HALF_PREF, 16#b).
+-define(BSSMAP_DATA_FULL_PREF_NO_CHANGE, 16#1a).
+-define(BSSMAP_DATA_HALF_PREF_NO_CHANGE, 16#1b).
+-define(BSSMAP_DATA_MULTI_MASK, 16#20).
+-define(BSSMAP_DATA_MULTI_MASK_NO_CHANGE, 16#30).
+
+% enum gsm0808_chan_rate_type_speech {
+-define(BSSMAP_SPEECH_FULL_BM, 16#8).
+-define(BSSMAP_SPEECH_HALF_LM, 16#9).
+-define(BSSMAP_SPEECH_FULL_PREF, 16#a).
+-define(BSSMAP_SPEECH_HALF_PREF, 16#b).
+-define(BSSMAP_SPEECH_FULL_PREF_NO_CHANGE, 16#1a).
+-define(BSSMAP_SPEECH_HALF_PREF_NO_CHANGE, 16#1b).
+-define(BSSMAP_SPEECH_PERM, 16#f).
+-define(BSSMAP_SPEECH_PERM_NO_CHANGE, 16#1f).
+
+% enum gsm0808_permitted_speech {
+-define(BSSMAP_PERM_FR1, 16#01).
+-define(BSSMAP_PERM_FR2, 16#11).
+-define(BSSMAP_PERM_FR3, 16#21).
+% BSSMAP_PERM_HR1 = BSSMAP_PERM_FR1 | 16#4,
+% BSSMAP_PERM_HR2 = BSSMAP_PERM_FR2 | 16#4,
+% BSSMAP_PERM_HR3 = BSSMAP_PERM_FR3 | 16#4,
+%};