diff options
author | João Valverde <joao.valverde@tecnico.ulisboa.pt> | 2016-03-09 03:17:51 +0000 |
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committer | João Valverde <j@v6e.pt> | 2016-03-13 21:30:24 +0000 |
commit | 54a520d4a1151c68d0b4e5f09a8d82466fa499f3 (patch) | |
tree | 7aacae160382098ce651ac862a5dfd5de4beff94 /epan/dissectors/asn1/isdn-sup/packet-isdn-sup-template.c | |
parent | c1f3c935bdd33090c87f0d2f84842ce9729b747a (diff) |
Move /asn1 to /epan/dissectors
Change-Id: I1208fe3c2ba428995526f561e8f792b8d871e9a9
Reviewed-on: https://code.wireshark.org/review/14388
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Reviewed-by: João Valverde <j@v6e.pt>
Diffstat (limited to 'epan/dissectors/asn1/isdn-sup/packet-isdn-sup-template.c')
-rw-r--r-- | epan/dissectors/asn1/isdn-sup/packet-isdn-sup-template.c | 373 |
1 files changed, 373 insertions, 0 deletions
diff --git a/epan/dissectors/asn1/isdn-sup/packet-isdn-sup-template.c b/epan/dissectors/asn1/isdn-sup/packet-isdn-sup-template.c new file mode 100644 index 0000000000..dc8f129551 --- /dev/null +++ b/epan/dissectors/asn1/isdn-sup/packet-isdn-sup-template.c @@ -0,0 +1,373 @@ +/* packet-isdn-sup-template.c + * Routines for ETSI Integrated Services Digital Network (ISDN) + * supplementary services + * Copyright 2013, Anders Broman <anders.broman@ericsson.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * References: ETSI 300 374 + */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/expert.h> + +#include "packet-ber.h" + +#define PNAME "ISDN supplementary services" +#define PSNAME "ISDN_SUP" +#define PFNAME "isdn_sup" + +void proto_register_isdn_sup(void); +void proto_reg_handoff_isdn_sup(void); + +#include "packet-isdn-sup-val.h" + +/* Initialize the protocol and registered fields */ +static int proto_isdn_sup = -1; +static int hf_isdn_sup_operation = -1; +static int hf_isdn_sup_error = -1; + +/* Global variables */ + +#if 0 +/* ROSE context */ +static rose_ctx_t isdn_sup_rose_ctx; +#endif + +typedef struct _isdn_sup_op_t { + gint32 opcode; + dissector_t arg_pdu; + dissector_t res_pdu; +} isdn_sup_op_t; + +typedef struct _isdn_global_sup_op_t { + const char* oid; + dissector_t arg_pdu; + dissector_t res_pdu; +} isdn_sup_global_op_t; + + +typedef struct isdn_sup_err_t { + gint32 errcode; + dissector_t err_pdu; +} isdn_sup_err_t; + +static const value_string isdn_sup_str_operation[] = { +#include "packet-isdn-sup-table10.c" + { 0, NULL} +}; + + +static const value_string isdn_sup_str_error[] = { +#include "packet-isdn-sup-table20.c" + { 0, NULL} +}; + +static int hf_isdn_sup = -1; + +#include "packet-isdn-sup-hf.c" + + +/* Initialize the subtree pointers */ +static gint ett_isdn_sup = -1; + +#include "packet-isdn-sup-ett.c" + +static expert_field ei_isdn_sup_unsupported_arg_type = EI_INIT; +static expert_field ei_isdn_sup_unsupported_result_type = EI_INIT; +static expert_field ei_isdn_sup_unsupported_error_type = EI_INIT; + +/* Preference settings default */ + +/* Global variables */ + +#include "packet-isdn-sup-fn.c" + +static const isdn_sup_op_t isdn_sup_op_tab[] = { +#include "packet-isdn-sup-table11.c" +}; + + +static const isdn_sup_global_op_t isdn_sup_global_op_tab[] = { + +#include "packet-isdn-sup-table31.c" +}; + +static const isdn_sup_err_t isdn_sup_err_tab[] = { +#include "packet-isdn-sup-table21.c" +}; + + +static const isdn_sup_op_t *get_op(gint32 opcode) { + int i; + + /* search from the end to get the last occurrence if the operation is redefined in some newer specification */ + for (i = array_length(isdn_sup_op_tab) - 1; i >= 0; i--) + if (isdn_sup_op_tab[i].opcode == opcode) + return &isdn_sup_op_tab[i]; + return NULL; +} + +static const isdn_sup_err_t *get_err(gint32 errcode) { + int i; + + /* search from the end to get the last occurrence if the operation is redefined in some newer specification */ + for (i = array_length(isdn_sup_err_tab) - 1; i >= 0; i--) + if (isdn_sup_err_tab[i].errcode == errcode) + return &isdn_sup_err_tab[i]; + return NULL; +} + +/*--- dissect_isdn_sup_arg ------------------------------------------------------*/ +static int +dissect_isdn_sup_arg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) { + int offset = 0; + rose_ctx_t *rctx; + gint32 opcode = 0; + const gchar *p; + const isdn_sup_op_t *op_ptr; + proto_item *ti; + proto_tree *isdn_sup_tree; + + /* Reject the packet if data is NULL */ + if (data == NULL) + return 0; + rctx = get_rose_ctx(data); + DISSECTOR_ASSERT(rctx); + + if (rctx->d.pdu != 1) /* invoke */ + return offset; + if (rctx->d.code == 0) { /* local */ + opcode = rctx->d.code_local; + } else { + return offset; + } + op_ptr = get_op(opcode); + if (!op_ptr) + return offset; + + ti = proto_tree_add_item(tree, proto_isdn_sup, tvb, offset, -1, ENC_NA); + isdn_sup_tree = proto_item_add_subtree(ti, ett_isdn_sup); + + proto_tree_add_uint(isdn_sup_tree, hf_isdn_sup_operation, tvb, 0, 0, opcode); + p = try_val_to_str(opcode, VALS(isdn_sup_str_operation)); + if (p) { + proto_item_append_text(ti, ": %s", p); + proto_item_append_text(rctx->d.code_item, " - %s", p); + if (rctx->apdu_depth >= 0) + proto_item_append_text(proto_item_get_parent_nth(proto_tree_get_parent(tree), rctx->apdu_depth), " %s", p); + } + + if (op_ptr->arg_pdu) + offset = op_ptr->arg_pdu(tvb, pinfo, isdn_sup_tree, NULL); + else + if (tvb_reported_length_remaining(tvb, offset) > 0) { + proto_tree_add_expert(tree, pinfo, &ei_isdn_sup_unsupported_error_type, tvb, offset, -1); + offset += tvb_reported_length_remaining(tvb, offset); + } + + return offset; +} + +/*--- dissect_isdn_sup_res -------------------------------------------------------*/ +static int +dissect_isdn_sup_res(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) { + gint offset = 0; + rose_ctx_t *rctx; + gint32 opcode = 0; + const gchar *p; + const isdn_sup_op_t *op_ptr; + proto_item *ti; + proto_tree *isdn_sup_tree; + + /* Reject the packet if data is NULL */ + if (data == NULL) + return 0; + rctx = get_rose_ctx(data); + DISSECTOR_ASSERT(rctx); + + if (rctx->d.pdu != 2) /* returnResult */ + return offset; + if (rctx->d.code != 0) /* local */ + return offset; + opcode = rctx->d.code_local; + op_ptr = get_op(opcode); + if (!op_ptr) + return offset; + + ti = proto_tree_add_item(tree, proto_isdn_sup, tvb, offset, -1, ENC_NA); + isdn_sup_tree = proto_item_add_subtree(ti, ett_isdn_sup); + + proto_tree_add_uint(isdn_sup_tree, hf_isdn_sup_operation, tvb, 0, 0, opcode); + p = try_val_to_str(opcode, VALS(isdn_sup_str_operation)); + if (p) { + proto_item_append_text(ti, ": %s", p); + proto_item_append_text(rctx->d.code_item, " - %s", p); + if (rctx->apdu_depth >= 0) + proto_item_append_text(proto_item_get_parent_nth(proto_tree_get_parent(tree), rctx->apdu_depth), " %s", p); + } + + if (op_ptr->res_pdu) + offset = op_ptr->res_pdu(tvb, pinfo, isdn_sup_tree, NULL); + else + if (tvb_reported_length_remaining(tvb, offset) > 0) { + proto_tree_add_expert(tree, pinfo, &ei_isdn_sup_unsupported_result_type, tvb, offset, -1); + offset += tvb_reported_length_remaining(tvb, offset); + } + + return offset; +} + + +/*--- dissect_isdn_sup_err ------------------------------------------------------*/ +static int +dissect_isdn_sup_err(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) { + int offset = 0; + rose_ctx_t *rctx; + gint32 errcode; + const isdn_sup_err_t *err_ptr; + const gchar *p; + proto_item *ti; + proto_tree *isdn_sup_tree; + + /* Reject the packet if data is NULL */ + if (data == NULL) + return 0; + rctx = get_rose_ctx(data); + DISSECTOR_ASSERT(rctx); + + if (rctx->d.pdu != 3) /* returnError */ + return offset; + if (rctx->d.code != 0) /* local */ + return offset; + errcode = rctx->d.code_local; + err_ptr = get_err(errcode); + if (!err_ptr) + return offset; + + ti = proto_tree_add_item(tree, proto_isdn_sup, tvb, offset, -1, ENC_NA); + isdn_sup_tree = proto_item_add_subtree(ti, ett_isdn_sup); + + proto_tree_add_uint(isdn_sup_tree, hf_isdn_sup_error, tvb, 0, 0, errcode); + p = try_val_to_str(errcode, VALS(isdn_sup_str_error)); + if (p) { + proto_item_append_text(ti, ": %s", p); + proto_item_append_text(rctx->d.code_item, " - %s", p); + if (rctx->apdu_depth >= 0) + proto_item_append_text(proto_item_get_parent_nth(proto_tree_get_parent(tree), rctx->apdu_depth), " %s", p); + } + + if (err_ptr->err_pdu) + offset = err_ptr->err_pdu(tvb, pinfo, isdn_sup_tree, NULL); + else + if (tvb_reported_length_remaining(tvb, offset) > 0) { + proto_tree_add_expert(tree, pinfo, &ei_isdn_sup_unsupported_error_type, tvb, offset, -1); + offset += tvb_reported_length_remaining(tvb, offset); + } + + return offset; +} + + +/*--- proto_reg_handoff_isdn_sup ---------------------------------------*/ + +void proto_reg_handoff_isdn_sup(void) { + int i; +#if 0 + dissector_handle_t q931_handle; +#endif + dissector_handle_t isdn_sup_arg_handle; + dissector_handle_t isdn_sup_res_handle; + dissector_handle_t isdn_sup_err_handle; + +#if 0 + q931_handle = find_dissector("q931"); +#endif + + isdn_sup_arg_handle = create_dissector_handle(dissect_isdn_sup_arg, proto_isdn_sup); + isdn_sup_res_handle = create_dissector_handle(dissect_isdn_sup_res, proto_isdn_sup); + for (i=0; i<(int)array_length(isdn_sup_op_tab); i++) { + dissector_add_uint("q932.ros.etsi.local.arg", isdn_sup_op_tab[i].opcode, isdn_sup_arg_handle); + dissector_add_uint("q932.ros.etsi.local.res", isdn_sup_op_tab[i].opcode, isdn_sup_res_handle); + } + + for (i=0; i<(int)array_length(isdn_sup_global_op_tab); i++) { + if(isdn_sup_global_op_tab->arg_pdu) + dissector_add_string("q932.ros.global.arg", isdn_sup_global_op_tab[i].oid, create_dissector_handle(isdn_sup_global_op_tab[i].arg_pdu, proto_isdn_sup)); + if(isdn_sup_global_op_tab->res_pdu) + dissector_add_string("q932.ros.global.res", isdn_sup_global_op_tab[i].oid, create_dissector_handle(isdn_sup_global_op_tab[i].res_pdu, proto_isdn_sup)); + } + + isdn_sup_err_handle = create_dissector_handle(dissect_isdn_sup_err, proto_isdn_sup); + + for (i=0; i<(int)array_length(isdn_sup_err_tab); i++) { + dissector_add_uint("q932.ros.etsi.local.err", isdn_sup_err_tab[i].errcode, isdn_sup_err_handle); + } + + +} + +void proto_register_isdn_sup(void) { + + /* List of fields */ + static hf_register_info hf[] = { + { &hf_isdn_sup, + { "isdn_sup", "isdn_sup.1", + FT_INT32, BASE_DEC, NULL, 0, + NULL, HFILL } + }, + { &hf_isdn_sup_operation, + { "Operation", "isdn_sup.operation", + FT_UINT8, BASE_DEC, VALS(isdn_sup_str_operation), 0x0, + NULL, HFILL } + }, + { &hf_isdn_sup_error, + { "Error", "isdn_sup.error", + FT_UINT8, BASE_DEC, VALS(isdn_sup_str_error), 0x0, + NULL, HFILL } + }, + +#include "packet-isdn-sup-hfarr.c" + }; + + /* List of subtrees */ + static gint *ett[] = { + &ett_isdn_sup, + +#include "packet-isdn-sup-ettarr.c" + }; + + static ei_register_info ei[] = { + { &ei_isdn_sup_unsupported_arg_type, { "isdn_sup.unsupported.arg_type", PI_UNDECODED, PI_WARN, "UNSUPPORTED ARGUMENT TYPE (ETSI sup)", EXPFILL }}, + { &ei_isdn_sup_unsupported_result_type, { "isdn_sup.unsupported.result_type", PI_UNDECODED, PI_WARN, "UNSUPPORTED RESULT TYPE (ETSI sup)", EXPFILL }}, + { &ei_isdn_sup_unsupported_error_type, { "isdn_sup.unsupported.error_type", PI_UNDECODED, PI_WARN, "UNSUPPORTED ERROR TYPE (ETSI sup)", EXPFILL }}, + }; + + expert_module_t* expert_isdn_sup; + + /* Register protocol */ + proto_isdn_sup = proto_register_protocol(PNAME, PSNAME, PFNAME); + + /* Register fields and subtrees */ + proto_register_field_array(proto_isdn_sup, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + expert_isdn_sup = expert_register_protocol(proto_isdn_sup); + expert_register_field_array(expert_isdn_sup, ei, array_length(ei)); +} |