/* * (QSIG) * * Implementation of QSIG extensions for chan_capi * * Copyright 2006-2007 (c) Mario Goegel * * Mario Goegel * * This program is free software and may be modified and * distributed under the terms of the GNU Public License. */ #ifndef PBX_QSIG_H #define PBX_QSIG_H int capiqsigdebug; #define QSIG_DISABLED 0x00 #define QSIG_ENABLED 0x01 /* shouldn't be used anymore */ #define QSIG_TYPE_ALCATEL_ECMA 0x01 /* use additional Alcatel ECMA */ #define QSIG_TYPE_HICOM_ECMAV2 0x02 /* use additional Hicom ECMA V2 */ #define CAPI_QSIG_WAITEVENT_PRPROPOSE 0x01000000 #define Q932_PROTOCOL_ROSE 0x11 /* X.219 & X.229 */ #define Q932_PROTOCOL_CMIP 0x12 /* Q.941 */ #define Q932_PROTOCOL_ACSE 0x13 /* X.217 & X.227 */ #define Q932_PROTOCOL_GAT 0x16 #define Q932_PROTOCOL_EXTENSIONS 0x1F #define COMP_TYPE_INVOKE 0xa1 /* Invoke component */ #define COMP_TYPE_DISCR_SS 0x91 /* Supplementary service descriptor - ROSE PROTOCOL */ #define COMP_TYPE_NFE 0xaa /* Network Facility Extensions (ECMA-165) */ #define COMP_TYPE_APDU_INTERP 0x8b /* APDU Interpration Type (0 DISCARD, 1 CLEARCALL-IF-UNKNOWN, 2 REJECT-APDU) */ #define COMP_TYPE_RETURN_RESULT 0xA2 #define COMP_TYPE_RETURN_ERROR 0xA3 #define COMP_TYPE_REJECT 0xA4 #define APDUINTERPRETATION_IGNORE 0x00 #define APDUINTERPRETATION_CLEARCALL 0x01 #define APDUINTERPRETATION_REJECT 0x02 /* const char* APDU_STR[] = { "IGNORE APDU", "CLEARCALL-IF-UNKNOWN", "REJECT APDU" }; */ /* ASN.1 Identifier Octet - Data types */ #define ASN1_TYPE_MASK 0x1f #define ASN1_BOOLEAN 0x01 #define ASN1_INTEGER 0x02 #define ASN1_BITSTRING 0x03 #define ASN1_OCTETSTRING 0x04 #define ASN1_NULL 0x05 #define ASN1_OBJECTIDENTIFIER 0x06 #define ASN1_OBJECTDESCRIPTOR 0x07 #define ASN1_EXTERN 0x08 #define ASN1_REAL 0x09 #define ASN1_ENUMERATED 0x0a #define ASN1_EMBEDDEDPDV 0x0b #define ASN1_UTF8STRING 0x0c #define ASN1_RELATIVEOBJECTID 0x0d /* 0x0e & 0x0f are reserved for future ASN.1 editions */ #define ASN1_SEQUENCE 0x10 #define ASN1_SET 0x11 #define ASN1_NUMERICSTRING 0x12 #define ASN1_PRINTABLESTRING 0x13 #define ASN1_TELETEXSTRING 0x14 #define ASN1_IA5STRING 0x16 #define ASN1_UTCTIME 0x17 #define ASN1_GENERALIZEDTIME 0x18 /* ASN.1 Type/Tag Class (bits 7 & 6 of Tag octet) */ #define ASN1_TC_UNIVERSAL 0x00 #define ASN1_TC_APPLICATION 0x40 #define ASN1_TC_CONTEXTSPEC 0x80 #define ASN1_TC_PRIVATE 0xC0 /* ASN.1 Type/Tag Form (bit 5 of Tag octet) */ #define ASN1_TF_PRIMITVE 0x00 #define ASN1_TF_CONSTRUCTED 0x20 /* field may be a type of sequence or set */ #define CNIP_CALLINGNAME 0x00 /* Name-Types defined in ECMA-164 */ #define CNIP_CALLEDNAME 0x01 #define CNIP_CONNECTEDNAME 0x02 #define CNIP_BUSYNAME 0x03 #define CNIP_NAMEPRESALLOW 0x80 #define CNIP_NAMEPRESRESTR 0xA0 #define CNIP_NAMEPRESUNAVAIL 0xC0 #define CNIP_NAMEUSERPROVIDED 0x00 /* Name is User-provided, unvalidated */ #define CNIP_NAMEUSERPROVIDEDV 0x01 /* Name is User-provided and validated */ /* QSIG Operations += 1000 */ #define CCQSIG__ECMA__NAMEPRES 1000 /* Setting an own constant for ECMA Operation/Namepresentation, others will follow */ #define CCQSIG__ECMA__PRPROPOSE 1004 /* Path Replacement Propose */ #define CCQSIG__ECMA__CTCOMPLETE 1012 /* Call Transfer Complete */ #define CCQSIG__ECMA__LEGINFO2 1021 /* LEG INFORMATION2 */ #define CCQSIG__ECMA__LEGINFO3 1022 /* LEG INFORMATION3 */ #define CCQSIG_TIMER_WAIT_PRPROPOSE 1 /* Wait x seconds */ struct rose_component { u_int8_t type; u_int8_t len; u_int8_t data[0]; }; #define GET_COMPONENT(component, idx, ptr, length) \ if ((idx)+2 > (length)) \ break; \ (component) = (struct rose_component*)&((ptr)[idx]); \ if ((idx)+(component)->len+2 > (length)) { \ if ((component)->len != ASN1_LEN_INDEF) \ pri_message(pri, "Length (%d) of 0x%X component is too long\n", (component)->len, (component)->type); \ } #define NEXT_COMPONENT(component, idx) \ (idx) += (component)->len + 2 #define SUB_COMPONENT(component, idx) \ (idx) += 2 #define CHECK_COMPONENT(component, comptype, message) \ if ((component)->type && ((component)->type & ASN1_TYPE_MASK) != (comptype)) { \ pri_message(pri, (message), (component)->type); \ asn1_dump(pri, (component), (component)->len+2); \ break; \ } #define ASN1_GET_INTEGER(component, variable) \ do { \ int comp_idx; \ (variable) = 0; \ for (comp_idx = 0; comp_idx < (component)->len; ++comp_idx) \ (variable) = ((variable) << 8) | (component)->data[comp_idx]; \ } while (0) #define ASN1_FIXUP_LEN(component, size) \ do { \ if ((component)->len == ASN1_LEN_INDEF) \ size += 2; \ } while (0) #define ASN1_ADD_SIMPLE(component, comptype, ptr, idx) \ do { \ (component) = (struct rose_component *)&((ptr)[(idx)]); \ (component)->type = (comptype); \ (component)->len = 0; \ (idx) += 2; \ } while (0) #define ASN1_ADD_BYTECOMP(component, comptype, ptr, idx, value) \ do { \ (component) = (struct rose_component *)&((ptr)[(idx)]); \ (component)->type = (comptype); \ (component)->len = 1; \ (component)->data[0] = (value); \ (idx) += 3; \ } while (0) #define ASN1_ADD_WORDCOMP(component, comptype, ptr, idx, value) \ do { \ int __val = (value); \ int __i = 0; \ (component) = (struct rose_component *)&((ptr)[(idx)]); \ (component)->type = (comptype); \ if ((__val >> 24)) \ (component)->data[__i++] = (__val >> 24) & 0xff; \ if ((__val >> 16)) \ (component)->data[__i++] = (__val >> 16) & 0xff; \ if ((__val >> 8)) \ (component)->data[__i++] = (__val >> 8) & 0xff; \ (component)->data[__i++] = __val & 0xff; \ (component)->len = __i; \ (idx) += 2 + __i; \ } while (0) #define ASN1_PUSH(stack, stackpointer, component) \ (stack)[(stackpointer)++] = (component) #define ASN1_FIXUP(stack, stackpointer, data, idx) \ do { \ --(stackpointer); \ (stack)[(stackpointer)]->len = (unsigned char *)&((data)[(idx)]) - (unsigned char *)(stack)[(stackpointer)] - 2; \ } while (0) #define free_null(x) { ast_free(x); x = NULL; } /* Common QSIG structs */ /* * INVOKE Data struct, contains data for further operations */ struct cc_qsig_invokedata { int len; /* invoke length */ int offset; /* where does the invoke start in facility array */ int id; /* id from sent Invoke Number */ int apdu_interpr; /* What To Do with unknown Operation? */ int descr_type; /* component descriptor is of ASN.1 Datatype (0x02 Integer, 0x06 Object Identifier) */ int type; /* when component is Integer */ int oid_len; unsigned char oid_bin[20]; /* when component is Object Identifier then save here the binary oid */ int datalen; /* invoke struct len */ unsigned char data[255]; /* invoke */ }; /* * NFE Entity Address - contains destination informations for following INVOKE's */ struct cc_qsig_entityaddr { /* In case of AnyPINX */ int partynum; /* private,public,etc a5=private */ int ton; /* Type of Number */ unsigned char *num; /* EntityNumber */ }; /* * Network Facility Extensions struct - to which pbx does the INVOKE belong to */ struct cc_qsig_nfe { int src_entity; /* Call is coming from PBX (End|Any) */ int dst_entity; /* Call destination is */ struct cc_qsig_entityaddr src_addr; /* additional infos (PBX identifier) */ struct cc_qsig_entityaddr dst_addr; /* same here for destination */ }; /* * prototypes */ /* *** QSIG Core Functions */ extern void cc_qsig_verbose(int c_d, char *text, ...); extern int cc_qsig_build_facility_struct(unsigned char * buf, unsigned int *idx, int protocolvar, int apdu_interpr, struct cc_qsig_nfe *nfe); extern int cc_qsig_add_invoke(unsigned char * buf, unsigned int *idx, struct cc_qsig_invokedata *invoke, struct capi_pvt *i); extern unsigned int cc_qsig_asn1_get_string(unsigned char *buf, int buflen, unsigned char *data); extern unsigned int cc_qsig_asn1_get_integer(unsigned char *data, int *idx); extern unsigned char *cc_qsig_asn1_oid2str(unsigned char *data, int size); extern int cc_qsig_asn1_add_string2(unsigned char asn1_type, void *data, int len, int max_len, void *src, int src_len); extern unsigned int cc_qsig_asn1_add_string(unsigned char *buf, int *idx, char *data, int datalen); extern unsigned int cc_qsig_asn1_add_integer(unsigned char *buf, int *idx, int value); extern signed int cc_qsig_asn1_check_ecma_isdn_oid(unsigned char *data, int len); extern unsigned int cc_qsig_check_facility(unsigned char *data, int *idx, int *apduval, int protocol); extern signed int cc_qsig_check_invoke(unsigned char *data, int *idx); extern signed int cc_qsig_get_invokeid(unsigned char *data, int *idx, struct cc_qsig_invokedata *invoke); extern signed int cc_qsig_fill_invokestruct(unsigned char *data, int *idx, struct cc_qsig_invokedata *invoke, int apduval); extern unsigned int cc_qsig_handle_capiind(unsigned char *data, struct capi_pvt *i); extern unsigned int cc_qsig_handle_capi_facilityind(unsigned char *data, struct capi_pvt *i); extern unsigned int cc_qsig_add_call_setup_data(unsigned char *data, struct capi_pvt *i, struct ast_channel *c); extern unsigned int cc_qsig_add_call_answer_data(unsigned char *data, struct capi_pvt *i, struct ast_channel *c); extern unsigned int cc_qsig_add_call_alert_data(unsigned char *data, struct capi_pvt *i, struct ast_channel *c); extern unsigned int cc_qsig_add_call_facility_data(unsigned char *data, struct capi_pvt *i, int facility); extern signed int cc_qsig_identifyinvoke(struct cc_qsig_invokedata *invoke, int protocol); extern unsigned int cc_qsig_handle_invokeoperation(int invokeident, struct cc_qsig_invokedata *invoke, struct capi_pvt *i); extern unsigned int cc_qsig_do_facility(unsigned char *fac, struct ast_channel *c, char *param, unsigned int factype, int info1); extern int pbx_capi_qsig_getplci(struct ast_channel *c, char *param); extern int pbx_capi_qsig_ssct(struct ast_channel *c, char *param); extern int pbx_capi_qsig_ct(struct ast_channel *c, char *param); extern int pbx_capi_qsig_callmark(struct ast_channel *c, char *param); extern int pbx_capi_qsig_bridge(struct capi_pvt *i0, struct capi_pvt *i1); extern int pbx_capi_qsig_sendtext(struct ast_channel *c, const char *text); extern void cc_qsig_interface_init(struct cc_capi_conf *conf, struct capi_pvt *tmp); extern void cc_pbx_qsig_conf_interface_value(struct cc_capi_conf *conf, struct ast_variable *v); extern void interface_cleanup_qsig(struct capi_pvt *i); extern void pbx_capi_qsig_unload_module(struct capi_pvt *i); extern void pbx_capi_qsig_handle_info_indication(_cmsg *CMSG, unsigned int PLCI, unsigned int NCCI, struct capi_pvt *i); #endif