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wireshark/epan/dissectors/packet-rtse.c

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/* Do not modify this file. Changes will be overwritten. */
/* Generated automatically by the ASN.1 to Wireshark dissector compiler */
/* packet-rtse.c */
/* asn2wrs.py -b -p rtse -c ./rtse.cnf -s ./packet-rtse-template -D . -O ../.. rtse.asn */
/* Input file: packet-rtse-template.c */
#line 1 "./asn1/rtse/packet-rtse-template.c"
/* packet-rtse-template.c
* Routines for RTSE packet dissection
* Graeme Lunt 2005
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/conversation.h>
#include <epan/prefs.h>
#include <epan/reassemble.h>
#include <epan/asn1.h>
#include <epan/expert.h>
#include <wsutil/str_util.h>
#include "packet-ber.h"
#include "packet-pres.h"
#include "packet-acse.h"
#include "packet-ros.h"
#include "packet-rtse.h"
#define PNAME "X.228 OSI Reliable Transfer Service"
#define PSNAME "RTSE"
#define PFNAME "rtse"
void proto_register_rtse(void);
void proto_reg_handoff_rtse(void);
/* Initialize the protocol and registered fields */
static int proto_rtse = -1;
static gboolean open_request=FALSE;
static guint32 app_proto=0;
static proto_tree *top_tree=NULL;
/* Preferences */
static gboolean rtse_reassemble = TRUE;
/*--- Included file: packet-rtse-hf.c ---*/
#line 1 "./asn1/rtse/packet-rtse-hf.c"
static int hf_rtse_rtorq_apdu = -1; /* RTORQapdu */
static int hf_rtse_rtoac_apdu = -1; /* RTOACapdu */
static int hf_rtse_rtorj_apdu = -1; /* RTORJapdu */
static int hf_rtse_rttp_apdu = -1; /* RTTPapdu */
static int hf_rtse_rttr_apdu = -1; /* RTTRapdu */
static int hf_rtse_rtab_apdu = -1; /* RTABapdu */
static int hf_rtse_checkpointSize = -1; /* INTEGER */
static int hf_rtse_windowSize = -1; /* INTEGER */
static int hf_rtse_dialogueMode = -1; /* T_dialogueMode */
static int hf_rtse_connectionDataRQ = -1; /* ConnectionData */
static int hf_rtse_applicationProtocol = -1; /* T_applicationProtocol */
static int hf_rtse_connectionDataAC = -1; /* ConnectionData */
static int hf_rtse_refuseReason = -1; /* RefuseReason */
static int hf_rtse_userDataRJ = -1; /* T_userDataRJ */
static int hf_rtse_abortReason = -1; /* AbortReason */
static int hf_rtse_reflectedParameter = -1; /* BIT_STRING */
static int hf_rtse_userdataAB = -1; /* T_userdataAB */
static int hf_rtse_open = -1; /* T_open */
static int hf_rtse_recover = -1; /* SessionConnectionIdentifier */
static int hf_rtse_callingSSuserReference = -1; /* CallingSSuserReference */
static int hf_rtse_commonReference = -1; /* CommonReference */
static int hf_rtse_additionalReferenceInformation = -1; /* AdditionalReferenceInformation */
static int hf_rtse_t61String = -1; /* T_t61String */
static int hf_rtse_octetString = -1; /* T_octetString */
/*--- End of included file: packet-rtse-hf.c ---*/
#line 48 "./asn1/rtse/packet-rtse-template.c"
/* Initialize the subtree pointers */
static gint ett_rtse = -1;
/*--- Included file: packet-rtse-ett.c ---*/
#line 1 "./asn1/rtse/packet-rtse-ett.c"
static gint ett_rtse_RTSE_apdus = -1;
static gint ett_rtse_RTORQapdu = -1;
static gint ett_rtse_RTOACapdu = -1;
static gint ett_rtse_RTORJapdu = -1;
static gint ett_rtse_RTABapdu = -1;
static gint ett_rtse_ConnectionData = -1;
static gint ett_rtse_SessionConnectionIdentifier = -1;
static gint ett_rtse_CallingSSuserReference = -1;
/*--- End of included file: packet-rtse-ett.c ---*/
#line 52 "./asn1/rtse/packet-rtse-template.c"
static expert_field ei_rtse_dissector_oid_not_implemented = EI_INIT;
static expert_field ei_rtse_unknown_rtse_pdu = EI_INIT;
static expert_field ei_rtse_abstract_syntax = EI_INIT;
static dissector_table_t rtse_oid_dissector_table=NULL;
static dissector_handle_t rtse_handle = NULL;
static gint ett_rtse_unknown = -1;
static reassembly_table rtse_reassembly_table;
static int hf_rtse_segment_data = -1;
static int hf_rtse_fragments = -1;
static int hf_rtse_fragment = -1;
static int hf_rtse_fragment_overlap = -1;
static int hf_rtse_fragment_overlap_conflicts = -1;
static int hf_rtse_fragment_multiple_tails = -1;
static int hf_rtse_fragment_too_long_fragment = -1;
static int hf_rtse_fragment_error = -1;
static int hf_rtse_fragment_count = -1;
static int hf_rtse_reassembled_in = -1;
static int hf_rtse_reassembled_length = -1;
static gint ett_rtse_fragment = -1;
static gint ett_rtse_fragments = -1;
static const fragment_items rtse_frag_items = {
/* Fragment subtrees */
&ett_rtse_fragment,
&ett_rtse_fragments,
/* Fragment fields */
&hf_rtse_fragments,
&hf_rtse_fragment,
&hf_rtse_fragment_overlap,
&hf_rtse_fragment_overlap_conflicts,
&hf_rtse_fragment_multiple_tails,
&hf_rtse_fragment_too_long_fragment,
&hf_rtse_fragment_error,
&hf_rtse_fragment_count,
/* Reassembled in field */
&hf_rtse_reassembled_in,
/* Reassembled length field */
&hf_rtse_reassembled_length,
/* Reassembled data field */
NULL,
/* Tag */
"RTSE fragments"
};
void
register_rtse_oid_dissector_handle(const char *oid, dissector_handle_t dissector, int proto, const char *name, gboolean uses_ros)
{
/* XXX: Note that this fcn is called from proto_reg_handoff in *other* dissectors ... */
static dissector_handle_t ros_handle = NULL;
if (ros_handle == NULL)
ros_handle = find_dissector("ros");
/* register RTSE with the BER (ACSE) */
register_ber_oid_dissector_handle(oid, rtse_handle, proto, name);
if (uses_ros) {
/* make sure we call ROS ... */
dissector_add_string("rtse.oid", oid, ros_handle);
/* and then tell ROS how to dissect the AS*/
if (dissector != NULL)
register_ros_oid_dissector_handle(oid, dissector, proto, name, TRUE);
} else {
/* otherwise we just remember how to dissect the AS */
dissector_add_string("rtse.oid", oid, dissector);
}
}
static int
call_rtse_oid_callback(const char *oid, tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, void* data)
{
tvbuff_t *next_tvb;
int len;
next_tvb = tvb_new_subset_remaining(tvb, offset);
if ((len = dissector_try_string(rtse_oid_dissector_table, oid, next_tvb, pinfo, tree, data)) == 0) {
proto_item *item;
proto_tree *next_tree;
next_tree = proto_tree_add_subtree_format(tree, next_tvb, 0, -1, ett_rtse_unknown, &item,
"RTSE: Dissector for OID:%s not implemented. Contact Wireshark developers if you want this supported", oid);
expert_add_info_format(pinfo, item, &ei_rtse_dissector_oid_not_implemented,
"RTSE: Dissector for OID %s not implemented", oid);
len = dissect_unknown_ber(pinfo, next_tvb, offset, next_tree);
}
offset += len;
return offset;
}
static int
call_rtse_external_type_callback(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, asn1_ctx_t *actx, proto_tree *tree, int hf_index _U_)
{
const char *oid = NULL;
if (actx->external.indirect_ref_present) {
oid = (const char *)find_oid_by_pres_ctx_id(actx->pinfo, actx->external.indirect_reference);
if (!oid)
proto_tree_add_expert_format(tree, actx->pinfo, &ei_rtse_abstract_syntax, tvb, offset, tvb_captured_length_remaining(tvb, offset),
"Unable to determine abstract syntax for indirect reference: %d.", actx->external.indirect_reference);
} else if (actx->external.direct_ref_present) {
oid = actx->external.direct_reference;
}
if (oid)
offset = call_rtse_oid_callback(oid, tvb, offset, actx->pinfo, top_tree ? top_tree : tree, actx->private_data);
return offset;
}
/*--- Included file: packet-rtse-fn.c ---*/
#line 1 "./asn1/rtse/packet-rtse-fn.c"
static int
dissect_rtse_INTEGER(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
NULL);
return offset;
}
static const value_string rtse_T_dialogueMode_vals[] = {
{ 0, "monologue" },
{ 1, "twa" },
{ 0, NULL }
};
static int
dissect_rtse_T_dialogueMode(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
NULL);
return offset;
}
static int
dissect_rtse_T_open(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 58 "./asn1/rtse/rtse.cnf"
struct SESSION_DATA_STRUCTURE* session = (struct SESSION_DATA_STRUCTURE*)actx->private_data;
const char *oid = NULL;
switch(app_proto) {
case 1: /* mts-transfer-protocol-1984 */
oid = "applicationProtocol.1";
break;
case 12: /* mts-transfer-protocol */
oid = "applicationProtocol.12";
break;
default:
if(session && session->pres_ctx_id)
oid = find_oid_by_pres_ctx_id(actx->pinfo, session->pres_ctx_id);
break;
}
if(!oid) /* XXX: problem here is we haven't decoded the applicationProtocol yet - so we make assumptions! */
oid = "applicationProtocol.12";
if(oid) {
offset = call_rtse_oid_callback(oid, tvb, offset, actx->pinfo, top_tree ? top_tree : tree, session);
}
/* else XXX: need to flag we can't find the presentation context */
return offset;
}
static int
dissect_rtse_T_t61String(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 116 "./asn1/rtse/rtse.cnf"
tvbuff_t *string = NULL;
offset = dissect_ber_restricted_string(implicit_tag, BER_UNI_TAG_TeletexString,
actx, tree, tvb, offset, hf_index,
&string);
if(open_request && string)
col_append_fstr(actx->pinfo->cinfo, COL_INFO, " %s", tvb_get_string_enc(actx->pinfo->pool, string, 0,
tvb_reported_length(string), ENC_T61));
return offset;
}
static int
dissect_rtse_T_octetString(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 136 "./asn1/rtse/rtse.cnf"
tvbuff_t *string = NULL;
offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
&string);
if(open_request && string)
col_append_fstr(actx->pinfo->cinfo, COL_INFO, " %s", tvb_format_text(actx->pinfo->pool, string, 0, tvb_reported_length(string)));
return offset;
}
static const value_string rtse_CallingSSuserReference_vals[] = {
{ 0, "t61String" },
{ 1, "octetString" },
{ 0, NULL }
};
static const ber_choice_t CallingSSuserReference_choice[] = {
{ 0, &hf_rtse_t61String , BER_CLASS_UNI, BER_UNI_TAG_TeletexString, BER_FLAGS_NOOWNTAG, dissect_rtse_T_t61String },
{ 1, &hf_rtse_octetString , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_rtse_T_octetString },
{ 0, NULL, 0, 0, 0, NULL }
};
static int
dissect_rtse_CallingSSuserReference(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_choice(actx, tree, tvb, offset,
CallingSSuserReference_choice, hf_index, ett_rtse_CallingSSuserReference,
NULL);
return offset;
}
static int
dissect_rtse_CommonReference(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 128 "./asn1/rtse/rtse.cnf"
tvbuff_t *string = NULL;
offset = dissect_ber_UTCTime(implicit_tag, actx, tree, tvb, offset, hf_index, NULL, NULL);
if(open_request && string)
col_append_fstr(actx->pinfo->cinfo, COL_INFO, " %s", tvb_format_text(actx->pinfo->pool, string, 0, tvb_reported_length(string)));
return offset;
}
static int
dissect_rtse_AdditionalReferenceInformation(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_restricted_string(implicit_tag, BER_UNI_TAG_TeletexString,
actx, tree, tvb, offset, hf_index,
NULL);
return offset;
}
static const ber_sequence_t SessionConnectionIdentifier_sequence[] = {
{ &hf_rtse_callingSSuserReference, BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_rtse_CallingSSuserReference },
{ &hf_rtse_commonReference, BER_CLASS_UNI, BER_UNI_TAG_UTCTime, BER_FLAGS_NOOWNTAG, dissect_rtse_CommonReference },
{ &hf_rtse_additionalReferenceInformation, BER_CLASS_CON, 0, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_AdditionalReferenceInformation },
{ NULL, 0, 0, 0, NULL }
};
static int
dissect_rtse_SessionConnectionIdentifier(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 108 "./asn1/rtse/rtse.cnf"
if(open_request){
col_append_str(actx->pinfo->cinfo, COL_INFO, "Recover");
}
offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
SessionConnectionIdentifier_sequence, hf_index, ett_rtse_SessionConnectionIdentifier);
return offset;
}
static const value_string rtse_ConnectionData_vals[] = {
{ 0, "open" },
{ 1, "recover" },
{ 0, NULL }
};
static const ber_choice_t ConnectionData_choice[] = {
{ 0, &hf_rtse_open , BER_CLASS_CON, 0, 0, dissect_rtse_T_open },
{ 1, &hf_rtse_recover , BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_rtse_SessionConnectionIdentifier },
{ 0, NULL, 0, 0, 0, NULL }
};
static int
dissect_rtse_ConnectionData(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_choice(actx, tree, tvb, offset,
ConnectionData_choice, hf_index, ett_rtse_ConnectionData,
NULL);
return offset;
}
static const value_string rtse_T_applicationProtocol_vals[] = {
{ 12, "mts-transfer-protocol" },
{ 1, "mts-transfer-protocol-1984" },
{ 0, NULL }
};
static int
dissect_rtse_T_applicationProtocol(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 104 "./asn1/rtse/rtse.cnf"
offset = dissect_ber_integer(TRUE, actx, tree, tvb, offset, hf_index, &app_proto);
return offset;
}
static const ber_sequence_t RTORQapdu_set[] = {
{ &hf_rtse_checkpointSize , BER_CLASS_CON, 0, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_INTEGER },
{ &hf_rtse_windowSize , BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_INTEGER },
{ &hf_rtse_dialogueMode , BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_T_dialogueMode },
{ &hf_rtse_connectionDataRQ, BER_CLASS_CON, 3, BER_FLAGS_NOTCHKTAG, dissect_rtse_ConnectionData },
{ &hf_rtse_applicationProtocol, BER_CLASS_CON, 4, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_T_applicationProtocol },
{ NULL, 0, 0, 0, NULL }
};
int
dissect_rtse_RTORQapdu(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 41 "./asn1/rtse/rtse.cnf"
struct SESSION_DATA_STRUCTURE* session = (struct SESSION_DATA_STRUCTURE*)actx->private_data;
if(session != NULL)
session->ros_op = (ROS_OP_BIND | ROS_OP_ARGUMENT);
open_request=TRUE;
offset = dissect_ber_set(implicit_tag, actx, tree, tvb, offset,
RTORQapdu_set, hf_index, ett_rtse_RTORQapdu);
open_request=FALSE;
return offset;
}
static const ber_sequence_t RTOACapdu_set[] = {
{ &hf_rtse_checkpointSize , BER_CLASS_CON, 0, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_INTEGER },
{ &hf_rtse_windowSize , BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_INTEGER },
{ &hf_rtse_connectionDataAC, BER_CLASS_CON, 2, BER_FLAGS_NOTCHKTAG, dissect_rtse_ConnectionData },
{ NULL, 0, 0, 0, NULL }
};
int
dissect_rtse_RTOACapdu(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 50 "./asn1/rtse/rtse.cnf"
struct SESSION_DATA_STRUCTURE* session = (struct SESSION_DATA_STRUCTURE*)actx->private_data;
if(session != NULL)
session->ros_op = (ROS_OP_BIND | ROS_OP_RESULT);
offset = dissect_ber_set(implicit_tag, actx, tree, tvb, offset,
RTOACapdu_set, hf_index, ett_rtse_RTOACapdu);
return offset;
}
static const value_string rtse_RefuseReason_vals[] = {
{ 0, "rtsBusy" },
{ 1, "cannotRecover" },
{ 2, "validationFailure" },
{ 3, "unacceptableDialogueMode" },
{ 0, NULL }
};
static int
dissect_rtse_RefuseReason(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 160 "./asn1/rtse/rtse.cnf"
int reason = -1;
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
&reason);
if(reason != -1)
col_append_fstr(actx->pinfo->cinfo, COL_INFO, " (%s)", val_to_str(reason, rtse_RefuseReason_vals, "reason(%d)"));
return offset;
}
static int
dissect_rtse_T_userDataRJ(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 11 "./asn1/rtse/rtse.cnf"
struct SESSION_DATA_STRUCTURE* session = (struct SESSION_DATA_STRUCTURE*)actx->private_data;
const char *oid = NULL;
switch(app_proto) {
case 1: /* mts-transfer-protocol-1984 */
oid = "applicationProtocol.1";
break;
case 12: /* mts-transfer-protocol */
oid = "applicationProtocol.12";
break;
default:
if(session && session->pres_ctx_id)
oid = find_oid_by_pres_ctx_id(actx->pinfo, session->pres_ctx_id);
break;
}
if(!oid) /* XXX: problem here is we haven't decoded the applicationProtocol yet - so we make assumptions! */
oid = "applicationProtocol.12";
if(oid) {
if(session != NULL)
session->ros_op = (ROS_OP_BIND | ROS_OP_ERROR);
offset = call_rtse_oid_callback(oid, tvb, offset, actx->pinfo, top_tree ? top_tree : tree, session);
}
return offset;
}
static const ber_sequence_t RTORJapdu_set[] = {
{ &hf_rtse_refuseReason , BER_CLASS_CON, 0, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_RefuseReason },
{ &hf_rtse_userDataRJ , BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL, dissect_rtse_T_userDataRJ },
{ NULL, 0, 0, 0, NULL }
};
int
dissect_rtse_RTORJapdu(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 152 "./asn1/rtse/rtse.cnf"
col_append_str(actx->pinfo->cinfo, COL_INFO, "Refuse");
offset = dissect_ber_set(implicit_tag, actx, tree, tvb, offset,
RTORJapdu_set, hf_index, ett_rtse_RTORJapdu);
return offset;
}
static int
dissect_rtse_RTTPapdu(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 142 "./asn1/rtse/rtse.cnf"
int priority = -1;
col_append_str(actx->pinfo->cinfo, COL_INFO, "Turn-Please");
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
&priority);
if(priority != -1)
col_append_fstr(actx->pinfo->cinfo, COL_INFO, " (%d)", priority);
return offset;
}
static int
dissect_rtse_RTTRapdu(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 86 "./asn1/rtse/rtse.cnf"
tvbuff_t *next_tvb = NULL;
struct SESSION_DATA_STRUCTURE* session = (struct SESSION_DATA_STRUCTURE*)actx->private_data;
offset = dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_index, &next_tvb);
if(next_tvb) {
/* XXX: we should check is this is an EXTERNAL first */
/* ROS won't do this for us */
if(session)
session->ros_op = (ROS_OP_INVOKE | ROS_OP_ARGUMENT);
offset = dissect_ber_external_type(FALSE, tree, next_tvb, 0, actx, -1, call_rtse_external_type_callback);
}
return offset;
}
static const value_string rtse_AbortReason_vals[] = {
{ 0, "localSystemProblem" },
{ 1, "invalidParameter" },
{ 2, "unrecognizedActivity" },
{ 3, "temporaryProblem" },
{ 4, "protocolError" },
{ 5, "permanentProblem" },
{ 6, "userError" },
{ 7, "transferCompleted" },
{ 0, NULL }
};
static int
dissect_rtse_AbortReason(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 176 "./asn1/rtse/rtse.cnf"
int reason = -1;
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
&reason);
if(reason != -1)
col_append_fstr(actx->pinfo->cinfo, COL_INFO, " (%s)", val_to_str(reason, rtse_AbortReason_vals, "reason(%d)"));
return offset;
}
static int
dissect_rtse_BIT_STRING(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_bitstring(implicit_tag, actx, tree, tvb, offset,
NULL, 0, hf_index, -1,
NULL);
return offset;
}
static int
dissect_rtse_T_userdataAB(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 38 "./asn1/rtse/rtse.cnf"
/*XXX not implemented yet */
return offset;
}
static const ber_sequence_t RTABapdu_set[] = {
{ &hf_rtse_abortReason , BER_CLASS_CON, 0, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_AbortReason },
{ &hf_rtse_reflectedParameter, BER_CLASS_CON, 1, BER_FLAGS_OPTIONAL|BER_FLAGS_IMPLTAG, dissect_rtse_BIT_STRING },
{ &hf_rtse_userdataAB , BER_CLASS_CON, 2, BER_FLAGS_OPTIONAL, dissect_rtse_T_userdataAB },
{ NULL, 0, 0, 0, NULL }
};
int
dissect_rtse_RTABapdu(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
#line 168 "./asn1/rtse/rtse.cnf"
col_append_str(actx->pinfo->cinfo, COL_INFO, "Abort");
offset = dissect_ber_set(implicit_tag, actx, tree, tvb, offset,
RTABapdu_set, hf_index, ett_rtse_RTABapdu);
return offset;
}
static const ber_choice_t RTSE_apdus_choice[] = {
{ 0, &hf_rtse_rtorq_apdu , BER_CLASS_CON, 16, BER_FLAGS_IMPLTAG, dissect_rtse_RTORQapdu },
{ 1, &hf_rtse_rtoac_apdu , BER_CLASS_CON, 17, BER_FLAGS_IMPLTAG, dissect_rtse_RTOACapdu },
{ 2, &hf_rtse_rtorj_apdu , BER_CLASS_CON, 18, BER_FLAGS_IMPLTAG, dissect_rtse_RTORJapdu },
{ 3, &hf_rtse_rttp_apdu , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_rtse_RTTPapdu },
{ 4, &hf_rtse_rttr_apdu , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_rtse_RTTRapdu },
{ 5, &hf_rtse_rtab_apdu , BER_CLASS_CON, 22, BER_FLAGS_IMPLTAG, dissect_rtse_RTABapdu },
{ 0, NULL, 0, 0, 0, NULL }
};
static int
dissect_rtse_RTSE_apdus(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_choice(actx, tree, tvb, offset,
RTSE_apdus_choice, hf_index, ett_rtse_RTSE_apdus,
NULL);
return offset;
}
/*--- End of included file: packet-rtse-fn.c ---*/
#line 176 "./asn1/rtse/packet-rtse-template.c"
/*
* Dissect RTSE PDUs inside a PPDU.
*/
static int
dissect_rtse(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
{
int offset = 0;
int old_offset;
proto_item *item;
proto_tree *tree;
proto_tree *next_tree=NULL;
tvbuff_t *next_tvb = NULL;
tvbuff_t *data_tvb = NULL;
fragment_head *frag_msg = NULL;
guint32 fragment_length;
guint32 rtse_id = 0;
gboolean data_handled = FALSE;
struct SESSION_DATA_STRUCTURE* session;
conversation_t *conversation = NULL;
asn1_ctx_t asn1_ctx;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
/* do we have application context from the acse dissector? */
if (data == NULL)
return 0;
session = (struct SESSION_DATA_STRUCTURE*)data;
/* save parent_tree so subdissectors can create new top nodes */
top_tree=parent_tree;
asn1_ctx.private_data = session;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RTSE");
col_clear(pinfo->cinfo, COL_INFO);
if (rtse_reassemble &&
((session->spdu_type == SES_DATA_TRANSFER) ||
(session->spdu_type == SES_MAJOR_SYNC_POINT)))
{
/* Use conversation index as fragment id */
conversation = find_conversation_pinfo(pinfo, 0);
if (conversation != NULL) {
rtse_id = conversation->conv_index;
}
session->rtse_reassemble = TRUE;
}
if (rtse_reassemble && session->spdu_type == SES_MAJOR_SYNC_POINT) {
frag_msg = fragment_end_seq_next (&rtse_reassembly_table,
pinfo, rtse_id, NULL);
next_tvb = process_reassembled_data (tvb, offset, pinfo, "Reassembled RTSE",
frag_msg, &rtse_frag_items, NULL, parent_tree);
}
item = proto_tree_add_item(parent_tree, proto_rtse, next_tvb ? next_tvb : tvb, 0, -1, ENC_NA);
tree = proto_item_add_subtree(item, ett_rtse);
if (rtse_reassemble && session->spdu_type == SES_DATA_TRANSFER) {
/* strip off the OCTET STRING encoding - including any CONSTRUCTED OCTET STRING */
dissect_ber_octet_string(FALSE, &asn1_ctx, tree, tvb, offset, hf_rtse_segment_data, &data_tvb);
if (data_tvb) {
fragment_length = tvb_captured_length_remaining (data_tvb, 0);
proto_item_append_text(asn1_ctx.created_item, " (%u byte%s)", fragment_length,
plurality(fragment_length, "", "s"));
frag_msg = fragment_add_seq_next (&rtse_reassembly_table,
data_tvb, 0, pinfo,
rtse_id, NULL,
fragment_length, TRUE);
if (frag_msg && pinfo->num != frag_msg->reassembled_in) {
/* Add a "Reassembled in" link if not reassembled in this frame */
proto_tree_add_uint (tree, *(rtse_frag_items.hf_reassembled_in),
data_tvb, 0, 0, frag_msg->reassembled_in);
}
pinfo->fragmented = TRUE;
data_handled = TRUE;
} else {
fragment_length = tvb_captured_length_remaining (tvb, offset);
}
col_append_fstr(pinfo->cinfo, COL_INFO, "[RTSE fragment, %u byte%s]",
fragment_length, plurality(fragment_length, "", "s"));
} else if (rtse_reassemble && session->spdu_type == SES_MAJOR_SYNC_POINT) {
if (next_tvb) {
/* ROS won't do this for us */
session->ros_op = (ROS_OP_INVOKE | ROS_OP_ARGUMENT);
/*offset=*/dissect_ber_external_type(FALSE, tree, next_tvb, 0, &asn1_ctx, -1, call_rtse_external_type_callback);
top_tree = NULL;
/* Return other than 0 to indicate that we handled this packet */
return 1;
} else {
offset = tvb_captured_length (tvb);
}
pinfo->fragmented = FALSE;
data_handled = TRUE;
}
if (!data_handled) {
while (tvb_reported_length_remaining(tvb, offset) > 0) {
old_offset=offset;
offset=dissect_rtse_RTSE_apdus(TRUE, tvb, offset, &asn1_ctx, tree, -1);
if (offset == old_offset) {
next_tree = proto_tree_add_subtree(tree, tvb, offset, -1,
ett_rtse_unknown, &item, "Unknown RTSE PDU");
expert_add_info (pinfo, item, &ei_rtse_unknown_rtse_pdu);
dissect_unknown_ber(pinfo, tvb, offset, next_tree);
break;
}
}
}
top_tree = NULL;
return tvb_captured_length(tvb);
}
/*--- proto_register_rtse -------------------------------------------*/
void proto_register_rtse(void) {
/* List of fields */
static hf_register_info hf[] =
{
/* Fragment entries */
{ &hf_rtse_segment_data,
{ "RTSE segment data", "rtse.segment", FT_NONE, BASE_NONE,
NULL, 0x00, NULL, HFILL } },
{ &hf_rtse_fragments,
{ "RTSE fragments", "rtse.fragments", FT_NONE, BASE_NONE,
NULL, 0x00, NULL, HFILL } },
{ &hf_rtse_fragment,
{ "RTSE fragment", "rtse.fragment", FT_FRAMENUM, BASE_NONE,
NULL, 0x00, NULL, HFILL } },
{ &hf_rtse_fragment_overlap,
{ "RTSE fragment overlap", "rtse.fragment.overlap", FT_BOOLEAN,
BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_rtse_fragment_overlap_conflicts,
{ "RTSE fragment overlapping with conflicting data",
"rtse.fragment.overlap.conflicts", FT_BOOLEAN, BASE_NONE,
NULL, 0x0, NULL, HFILL } },
{ &hf_rtse_fragment_multiple_tails,
{ "RTSE has multiple tail fragments",
"rtse.fragment.multiple_tails", FT_BOOLEAN, BASE_NONE,
NULL, 0x0, NULL, HFILL } },
{ &hf_rtse_fragment_too_long_fragment,
{ "RTSE fragment too long", "rtse.fragment.too_long_fragment",
FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL } },
{ &hf_rtse_fragment_error,
{ "RTSE defragmentation error", "rtse.fragment.error", FT_FRAMENUM,
BASE_NONE, NULL, 0x00, NULL, HFILL } },
{ &hf_rtse_fragment_count,
{ "RTSE fragment count", "rtse.fragment.count", FT_UINT32, BASE_DEC,
NULL, 0x00, NULL, HFILL } },
{ &hf_rtse_reassembled_in,
{ "Reassembled RTSE in frame", "rtse.reassembled.in", FT_FRAMENUM, BASE_NONE,
NULL, 0x00, "This RTSE packet is reassembled in this frame", HFILL } },
{ &hf_rtse_reassembled_length,
{ "Reassembled RTSE length", "rtse.reassembled.length", FT_UINT32, BASE_DEC,
NULL, 0x00, "The total length of the reassembled payload", HFILL } },
/*--- Included file: packet-rtse-hfarr.c ---*/
#line 1 "./asn1/rtse/packet-rtse-hfarr.c"
{ &hf_rtse_rtorq_apdu,
{ "rtorq-apdu", "rtse.rtorq_apdu_element",
FT_NONE, BASE_NONE, NULL, 0,
"RTORQapdu", HFILL }},
{ &hf_rtse_rtoac_apdu,
{ "rtoac-apdu", "rtse.rtoac_apdu_element",
FT_NONE, BASE_NONE, NULL, 0,
"RTOACapdu", HFILL }},
{ &hf_rtse_rtorj_apdu,
{ "rtorj-apdu", "rtse.rtorj_apdu_element",
FT_NONE, BASE_NONE, NULL, 0,
"RTORJapdu", HFILL }},
{ &hf_rtse_rttp_apdu,
{ "rttp-apdu", "rtse.rttp_apdu",
FT_INT32, BASE_DEC, NULL, 0,
"RTTPapdu", HFILL }},
{ &hf_rtse_rttr_apdu,
{ "rttr-apdu", "rtse.rttr_apdu",
FT_BYTES, BASE_NONE, NULL, 0,
"RTTRapdu", HFILL }},
{ &hf_rtse_rtab_apdu,
{ "rtab-apdu", "rtse.rtab_apdu_element",
FT_NONE, BASE_NONE, NULL, 0,
"RTABapdu", HFILL }},
{ &hf_rtse_checkpointSize,
{ "checkpointSize", "rtse.checkpointSize",
FT_INT32, BASE_DEC, NULL, 0,
"INTEGER", HFILL }},
{ &hf_rtse_windowSize,
{ "windowSize", "rtse.windowSize",
FT_INT32, BASE_DEC, NULL, 0,
"INTEGER", HFILL }},
{ &hf_rtse_dialogueMode,
{ "dialogueMode", "rtse.dialogueMode",
FT_INT32, BASE_DEC, VALS(rtse_T_dialogueMode_vals), 0,
NULL, HFILL }},
{ &hf_rtse_connectionDataRQ,
{ "connectionDataRQ", "rtse.connectionDataRQ",
FT_UINT32, BASE_DEC, VALS(rtse_ConnectionData_vals), 0,
"ConnectionData", HFILL }},
{ &hf_rtse_applicationProtocol,
{ "applicationProtocol", "rtse.applicationProtocol",
FT_INT32, BASE_DEC, VALS(rtse_T_applicationProtocol_vals), 0,
NULL, HFILL }},
{ &hf_rtse_connectionDataAC,
{ "connectionDataAC", "rtse.connectionDataAC",
FT_UINT32, BASE_DEC, VALS(rtse_ConnectionData_vals), 0,
"ConnectionData", HFILL }},
{ &hf_rtse_refuseReason,
{ "refuseReason", "rtse.refuseReason",
FT_INT32, BASE_DEC, VALS(rtse_RefuseReason_vals), 0,
NULL, HFILL }},
{ &hf_rtse_userDataRJ,
{ "userDataRJ", "rtse.userDataRJ_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_rtse_abortReason,
{ "abortReason", "rtse.abortReason",
FT_INT32, BASE_DEC, VALS(rtse_AbortReason_vals), 0,
NULL, HFILL }},
{ &hf_rtse_reflectedParameter,
{ "reflectedParameter", "rtse.reflectedParameter",
FT_BYTES, BASE_NONE, NULL, 0,
"BIT_STRING", HFILL }},
{ &hf_rtse_userdataAB,
{ "userdataAB", "rtse.userdataAB_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_rtse_open,
{ "open", "rtse.open_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_rtse_recover,
{ "recover", "rtse.recover_element",
FT_NONE, BASE_NONE, NULL, 0,
"SessionConnectionIdentifier", HFILL }},
{ &hf_rtse_callingSSuserReference,
{ "callingSSuserReference", "rtse.callingSSuserReference",
FT_UINT32, BASE_DEC, VALS(rtse_CallingSSuserReference_vals), 0,
NULL, HFILL }},
{ &hf_rtse_commonReference,
{ "commonReference", "rtse.commonReference",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_rtse_additionalReferenceInformation,
{ "additionalReferenceInformation", "rtse.additionalReferenceInformation",
FT_STRING, STR_UNICODE, NULL, 0,
NULL, HFILL }},
{ &hf_rtse_t61String,
{ "t61String", "rtse.t61String",
FT_STRING, STR_UNICODE, NULL, 0,
NULL, HFILL }},
{ &hf_rtse_octetString,
{ "octetString", "rtse.octetString",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }},
/*--- End of included file: packet-rtse-hfarr.c ---*/
#line 335 "./asn1/rtse/packet-rtse-template.c"
};
/* List of subtrees */
static gint *ett[] = {
&ett_rtse,
&ett_rtse_unknown,
&ett_rtse_fragment,
&ett_rtse_fragments,
/*--- Included file: packet-rtse-ettarr.c ---*/
#line 1 "./asn1/rtse/packet-rtse-ettarr.c"
&ett_rtse_RTSE_apdus,
&ett_rtse_RTORQapdu,
&ett_rtse_RTOACapdu,
&ett_rtse_RTORJapdu,
&ett_rtse_RTABapdu,
&ett_rtse_ConnectionData,
&ett_rtse_SessionConnectionIdentifier,
&ett_rtse_CallingSSuserReference,
/*--- End of included file: packet-rtse-ettarr.c ---*/
#line 344 "./asn1/rtse/packet-rtse-template.c"
};
static ei_register_info ei[] = {
{ &ei_rtse_dissector_oid_not_implemented, { "rtse.dissector_oid_not_implemented", PI_UNDECODED, PI_WARN, "RTSE: Dissector for OID not implemented", EXPFILL }},
{ &ei_rtse_unknown_rtse_pdu, { "rtse.unknown_rtse_pdu", PI_UNDECODED, PI_WARN, "Unknown RTSE PDU", EXPFILL }},
{ &ei_rtse_abstract_syntax, { "rtse.bad_abstract_syntax", PI_PROTOCOL, PI_WARN, "Unable to determine abstract syntax for indirect reference", EXPFILL }},
};
expert_module_t* expert_rtse;
module_t *rtse_module;
/* Register protocol */
proto_rtse = proto_register_protocol(PNAME, PSNAME, PFNAME);
rtse_handle = register_dissector("rtse", dissect_rtse, proto_rtse);
/* Register fields and subtrees */
proto_register_field_array(proto_rtse, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_rtse = expert_register_protocol(proto_rtse);
expert_register_field_array(expert_rtse, ei, array_length(ei));
reassembly_table_register (&rtse_reassembly_table,
&addresses_reassembly_table_functions);
rtse_module = prefs_register_protocol_subtree("OSI", proto_rtse, NULL);
prefs_register_bool_preference(rtse_module, "reassemble",
"Reassemble segmented RTSE datagrams",
"Whether segmented RTSE datagrams should be reassembled."
" To use this option, you must also enable"
" \"Allow subdissectors to reassemble TCP streams\""
" in the TCP protocol settings.", &rtse_reassemble);
rtse_oid_dissector_table = register_dissector_table("rtse.oid", "RTSE OID Dissectors", proto_rtse, FT_STRING, BASE_NONE);
}
/*--- proto_reg_handoff_rtse --- */
void proto_reg_handoff_rtse(void) {
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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