forked from osmocom/wireshark
740 lines
30 KiB
C
740 lines
30 KiB
C
/* packet-ipp.c
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* Routines for IPP packet disassembly
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*
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* Guy Harris <guy@alum.mit.edu>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/strutil.h>
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#include <epan/to_str.h>
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#include "packet-http.h"
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void proto_register_ipp(void);
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void proto_reg_handoff_ipp(void);
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static int proto_ipp = -1;
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static int hf_ipp_timestamp = -1;
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/* Generated from convert_proto_tree_add_text.pl */
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static int hf_ipp_request_id = -1;
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static int hf_ipp_name = -1;
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static int hf_ipp_tag = -1;
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static int hf_ipp_value_length = -1;
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static int hf_ipp_charstring_value = -1;
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static int hf_ipp_status_code = -1;
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static int hf_ipp_version = -1;
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static int hf_ipp_bool_value = -1;
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static int hf_ipp_name_length = -1;
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static int hf_ipp_job_state = -1;
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static int hf_ipp_bytes_value = -1;
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static int hf_ipp_operation_id = -1;
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static int hf_ipp_printer_state = -1;
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static int hf_ipp_uint32_value = -1;
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static gint ett_ipp = -1;
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static gint ett_ipp_as = -1;
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static gint ett_ipp_attr = -1;
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static dissector_handle_t data_handle;
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#define PRINT_JOB 0x0002
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#define PRINT_URI 0x0003
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#define VALIDATE_JOB 0x0004
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#define CREATE_JOB 0x0005
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#define SEND_DOCUMENT 0x0006
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#define SEND_URI 0x0007
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#define CANCEL_JOB 0x0008
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#define GET_JOB_ATTRIBUTES 0x0009
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#define GET_JOBS 0x000A
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#define GET_PRINTER_ATTRIBUTES 0x000B
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static const value_string operation_vals[] = {
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{ PRINT_JOB, "Print-Job" },
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{ PRINT_URI, "Print-URI" },
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{ VALIDATE_JOB, "Validate-Job" },
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{ CREATE_JOB, "Create-Job" },
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{ SEND_DOCUMENT, "Send-Document" },
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{ SEND_URI, "Send-URI" },
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{ CANCEL_JOB, "Cancel-Job" },
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{ GET_JOB_ATTRIBUTES, "Get-Job-Attributes" },
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{ GET_JOBS, "Get-Jobs" },
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{ GET_PRINTER_ATTRIBUTES, "Get-Printer-Attributes" },
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{ 0, NULL }
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};
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/* Printer States */
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#define PRINTER_STATE_IDLE 0x3
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#define PRINTER_STATE_PROCESSING 0x4
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#define PRINTER_STATE_STOPPED 0x5
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static const value_string printer_state_vals[] = {
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{ PRINTER_STATE_IDLE, "Idle" },
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{ PRINTER_STATE_PROCESSING, "Processing" },
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{ PRINTER_STATE_STOPPED, "Stopped" },
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{ 0, NULL }
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};
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/* Job States */
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static const value_string job_state_vals[] = {
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{ 3, "Pending" },
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{ 4, "Pending - Job Held" },
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{ 5, "Processing" },
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{ 6, "Processing - Job Stopped" },
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{ 7, "Canceled" },
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{ 8, "Aborted" },
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{ 9, "Completed" },
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{ 0, NULL }
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};
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#define STATUS_SUCCESSFUL 0x0000
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#define STATUS_INFORMATIONAL 0x0100
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#define STATUS_REDIRECTION 0x0200
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#define STATUS_CLIENT_ERROR 0x0400
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#define STATUS_SERVER_ERROR 0x0500
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#define STATUS_TYPE_MASK 0xFF00
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#define SUCCESSFUL_OK 0x0000
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#define SUCCESSFUL_OK_IGN_OR_SUB_ATTR 0x0001
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#define SUCCESSFUL_OK_CONFLICTING_ATTR 0x0002
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#define CLIENT_ERROR_BAD_REQUEST 0x0400
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#define CLIENT_ERROR_FORBIDDEN 0x0401
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#define CLIENT_ERROR_NOT_AUTHENTICATED 0x0402
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#define CLIENT_ERROR_NOT_AUTHORIZED 0x0403
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#define CLIENT_ERROR_NOT_POSSIBLE 0x0404
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#define CLIENT_ERROR_TIMEOUT 0x0405
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#define CLIENT_ERROR_NOT_FOUND 0x0406
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#define CLIENT_ERROR_GONE 0x0407
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#define CLIENT_ERROR_REQ_ENTITY_TOO_LRG 0x0408
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#define CLIENT_ERROR_REQ_VALUE_TOO_LONG 0x0409
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#define CLIENT_ERROR_DOC_FMT_NOT_SUPP 0x040A
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#define CLIENT_ERROR_ATTR_OR_VAL_NOT_SUPP 0x040B
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#define CLIENT_ERROR_URI_SCHEME_NOT_SUPP 0x040C
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#define CLIENT_ERROR_CHARSET_NOT_SUPP 0x040D
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#define CLIENT_ERROR_CONFLICTING_ATTRS 0x040E
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#define SERVER_ERROR_INTERNAL_ERROR 0x0500
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#define SERVER_ERROR_OPERATION_NOT_SUPP 0x0501
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#define SERVER_ERROR_SERVICE_UNAVAIL 0x0502
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#define SERVER_ERROR_VERSION_NOT_SUPP 0x0503
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#define SERVER_ERROR_DEVICE_ERROR 0x0504
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#define SERVER_ERROR_TEMPORARY_ERROR 0x0505
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#define SERVER_ERROR_NOT_ACCEPTING_JOBS 0x0506
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#define SERVER_ERROR_BUSY 0x0507
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#define SERVER_ERROR_JOB_CANCELED 0x0508
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static const value_string status_vals[] = {
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{ SUCCESSFUL_OK, "Successful-OK" },
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{ SUCCESSFUL_OK_IGN_OR_SUB_ATTR, "Successful-OK-Ignored-Or-Substituted-Attributes" },
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{ SUCCESSFUL_OK_CONFLICTING_ATTR, "Successful-OK-Conflicting-Attributes" },
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{ CLIENT_ERROR_BAD_REQUEST, "Client-Error-Bad-Request" },
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{ CLIENT_ERROR_FORBIDDEN, "Client-Error-Forbidden" },
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{ CLIENT_ERROR_NOT_AUTHENTICATED, "Client-Error-Not-Authenticated" },
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{ CLIENT_ERROR_NOT_AUTHORIZED, "Client-Error-Not-Authorized" },
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{ CLIENT_ERROR_NOT_POSSIBLE, "Client-Error-Not-Possible" },
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{ CLIENT_ERROR_TIMEOUT, "Client-Error-Timeout" },
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{ CLIENT_ERROR_NOT_FOUND, "Client-Error-Not-Found" },
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{ CLIENT_ERROR_GONE, "Client-Error-Gone" },
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{ CLIENT_ERROR_REQ_ENTITY_TOO_LRG, "Client-Error-Request-Entity-Too-Large" },
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{ CLIENT_ERROR_REQ_VALUE_TOO_LONG, "Client-Error-Request-Value-Too-Long" },
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{ CLIENT_ERROR_DOC_FMT_NOT_SUPP, "Client-Error-Document-Format-Not-Supported" },
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{ CLIENT_ERROR_ATTR_OR_VAL_NOT_SUPP, "Client-Error-Attributes-Or-Values-Not-Supported" },
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{ CLIENT_ERROR_URI_SCHEME_NOT_SUPP, "Client-Error-URI-Scheme-Not-Supported" },
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{ CLIENT_ERROR_CHARSET_NOT_SUPP, "Client-Error-Charset-Not-Supported" },
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{ CLIENT_ERROR_CONFLICTING_ATTRS, "Client-Error-Conflicting-Attributes" },
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{ SERVER_ERROR_INTERNAL_ERROR, "Server-Error-Internal-Error" },
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{ SERVER_ERROR_OPERATION_NOT_SUPP, "Server-Error-Operation-Not-Supported" },
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{ SERVER_ERROR_SERVICE_UNAVAIL, "Server-Error-Service-Unavailable" },
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{ SERVER_ERROR_VERSION_NOT_SUPP, "Server-Error-Version-Not-Supported" },
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{ SERVER_ERROR_DEVICE_ERROR, "Server-Error-Device-Error" },
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{ SERVER_ERROR_TEMPORARY_ERROR, "Server-Error-Temporary-Error" },
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{ SERVER_ERROR_NOT_ACCEPTING_JOBS, "Server-Error-Not-Accepting-Jobs" },
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{ SERVER_ERROR_BUSY, "Server-Error-Busy" },
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{ SERVER_ERROR_JOB_CANCELED, "Server-Error-Job-Canceled" },
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{ 0, NULL }
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};
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static int parse_attributes(tvbuff_t *tvb, int offset, proto_tree *tree);
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static proto_tree *add_integer_tree(proto_tree *tree, tvbuff_t *tvb,
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int offset, int name_length, int value_length, guint8 tag);
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static void add_integer_value(const gchar *tag_desc, proto_tree *tree,
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tvbuff_t *tvb, int offset, int name_length, int value_length, guint8 tag);
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static proto_tree *add_octetstring_tree(proto_tree *tree, tvbuff_t *tvb,
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int offset, int name_length, int value_length);
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static void add_octetstring_value(const gchar *tag_desc, proto_tree *tree,
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tvbuff_t *tvb, int offset, int name_length, int value_length);
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static proto_tree *add_charstring_tree(proto_tree *tree, tvbuff_t *tvb,
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int offset, int name_length, int value_length);
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static void add_charstring_value(const gchar *tag_desc, proto_tree *tree,
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tvbuff_t *tvb, int offset, int name_length, int value_length);
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static int add_value_head(const gchar *tag_desc, proto_tree *tree,
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tvbuff_t *tvb, int offset, int name_length, int value_length, char **name_val);
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static void
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dissect_ipp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_tree *ipp_tree;
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proto_item *ti;
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int offset = 0;
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gboolean is_request = (pinfo->destport == pinfo->match_uint);
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/* XXX - should this be based on the HTTP header? */
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guint16 status_code;
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const gchar *status_type;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPP");
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if (is_request)
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col_set_str(pinfo->cinfo, COL_INFO, "IPP request");
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else
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col_set_str(pinfo->cinfo, COL_INFO, "IPP response");
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if (tree) {
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ti = proto_tree_add_item(tree, proto_ipp, tvb, offset, -1, ENC_NA);
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ipp_tree = proto_item_add_subtree(ti, ett_ipp);
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proto_tree_add_item(ipp_tree, hf_ipp_version, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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if (is_request) {
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proto_tree_add_item(ipp_tree, hf_ipp_operation_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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} else {
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status_code = tvb_get_ntohs(tvb, offset);
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switch (status_code & STATUS_TYPE_MASK) {
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case STATUS_SUCCESSFUL:
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status_type = "Successful";
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break;
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case STATUS_INFORMATIONAL:
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status_type = "Informational";
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break;
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case STATUS_REDIRECTION:
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status_type = "Redirection";
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break;
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case STATUS_CLIENT_ERROR:
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status_type = "Client error";
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break;
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case STATUS_SERVER_ERROR:
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status_type = "Server error";
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break;
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default:
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status_type = "Unknown";
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break;
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}
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proto_tree_add_uint_format_value(ipp_tree, hf_ipp_status_code, tvb, offset, 2, status_code,
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"%s (%s)", status_type, val_to_str(status_code, status_vals, "0x804x"));
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}
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offset += 2;
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proto_tree_add_item(ipp_tree, hf_ipp_request_id, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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offset = parse_attributes(tvb, offset, ipp_tree);
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if (tvb_offset_exists(tvb, offset)) {
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call_dissector(data_handle,
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tvb_new_subset_remaining(tvb, offset), pinfo,
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ipp_tree);
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}
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}
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}
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#define TAG_TYPE(x) ((x) & 0xF0)
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#define TAG_TYPE_DELIMITER 0x00
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#define TAG_TYPE_INTEGER 0x20
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#define TAG_TYPE_OCTETSTRING 0x30
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#define TAG_TYPE_CHARSTRING 0x40
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#define TAG_END_OF_ATTRIBUTES 0x03
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#define TAG_INTEGER 0x21
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#define TAG_BOOLEAN 0x22
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#define TAG_ENUM 0x23
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#define TAG_OCTETSTRING 0x30
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#define TAG_DATETIME 0x31
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#define TAG_RESOLUTION 0x32
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#define TAG_RANGEOFINTEGER 0x33
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#define TAG_TEXTWITHLANGUAGE 0x35
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#define TAG_NAMEWITHLANGUAGE 0x36
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#define TAG_TEXTWITHOUTLANGUAGE 0x41
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#define TAG_NAMEWITHOUTLANGUAGE 0x42
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#define TAG_KEYWORD 0x44
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#define TAG_URI 0x45
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#define TAG_URISCHEME 0x46
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#define TAG_CHARSET 0x47
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#define TAG_NATURALLANGUAGE 0x48
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#define TAG_MIMEMEDIATYPE 0x49
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static const value_string tag_vals[] = {
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/* Delimiter tags */
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{ 0x01, "Operation attributes" },
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{ 0x02, "Job attributes" },
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{ TAG_END_OF_ATTRIBUTES, "End of attributes" },
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{ 0x04, "Printer attributes" },
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{ 0x05, "Unsupported attributes" },
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/* Value tags */
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{ 0x10, "Unsupported" },
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{ 0x12, "Unknown" },
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{ 0x13, "No value" },
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{ TAG_INTEGER, "Integer" },
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{ TAG_BOOLEAN, "Boolean" },
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{ TAG_ENUM, "Enum" },
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{ TAG_OCTETSTRING, "Octet string" },
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{ TAG_DATETIME, "Date/Time" },
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{ TAG_RESOLUTION, "Resolution" },
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{ TAG_RANGEOFINTEGER, "Range of integer" },
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{ TAG_TEXTWITHLANGUAGE, "Text with language" },
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{ TAG_NAMEWITHLANGUAGE, "Name with language" },
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{ TAG_TEXTWITHOUTLANGUAGE, "Text without language" },
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{ TAG_NAMEWITHOUTLANGUAGE, "Name without language" },
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{ TAG_KEYWORD, "Keyword" },
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{ TAG_URI, "URI" },
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{ TAG_URISCHEME, "URI scheme" },
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{ TAG_CHARSET, "Character set" },
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{ TAG_NATURALLANGUAGE, "Natural language" },
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{ TAG_MIMEMEDIATYPE, "MIME media type" },
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{ 0, NULL }
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};
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static int
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parse_attributes(tvbuff_t *tvb, int offset, proto_tree *tree)
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{
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guint8 tag;
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const gchar *tag_desc;
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int name_length, value_length;
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proto_tree *as_tree = tree;
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proto_item *tas = NULL;
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int start_offset = offset;
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proto_tree *attr_tree = tree;
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while (tvb_offset_exists(tvb, offset)) {
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tag = tvb_get_guint8(tvb, offset);
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tag_desc = val_to_str(tag, tag_vals, "Reserved (0x%02x)");
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if (TAG_TYPE(tag) == TAG_TYPE_DELIMITER) {
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/*
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* If we had an attribute sequence we were
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* working on, we're done with it; set its
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* length to the length of all the stuff
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* we've done so far.
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*/
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if (tas != NULL)
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proto_item_set_len(tas, offset - start_offset);
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/*
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* This tag starts a new attribute sequence;
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* create a new tree under this tag when we see
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* a non-delimiter tag, under which to put
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* those attributes.
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*/
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as_tree = NULL;
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attr_tree = tree;
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/*
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* Remember the offset at which this attribute
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* sequence started, so we can use it to compute
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* its length when it's finished.
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*/
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start_offset = offset;
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/*
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* Now create a new item for this tag.
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* XXX - should use proto_tree_add_subtree
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*/
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tas = proto_tree_add_text(tree, tvb, offset, 1, "%s", tag_desc);
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offset += 1;
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if (tag == TAG_END_OF_ATTRIBUTES) {
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/*
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* No more attributes.
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*/
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break;
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}
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} else {
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/*
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* Value tag - get the name length.
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*/
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name_length = tvb_get_ntohs(tvb, offset + 1);
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/*
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* OK, get the value length.
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*/
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value_length = tvb_get_ntohs(tvb, offset + 1 + 2 + name_length);
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/*
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* OK, does the value run past the end of the
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* frame?
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*/
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if (as_tree == NULL) {
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/*
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* OK, there's an attribute to hang
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* under a delimiter tag, but we don't
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* have a tree for that tag yet; create
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* a tree.
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*/
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as_tree = proto_item_add_subtree(tas,
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ett_ipp_as);
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attr_tree = as_tree;
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}
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switch (TAG_TYPE(tag)) {
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case TAG_TYPE_INTEGER:
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if (name_length != 0) {
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/*
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* This is an attribute, not
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* an additional value, so
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* start a tree for it.
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*/
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attr_tree = add_integer_tree(as_tree,
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tvb, offset, name_length,
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value_length, tag);
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}
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add_integer_value(tag_desc, attr_tree, tvb,
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offset, name_length, value_length, tag);
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break;
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case TAG_TYPE_OCTETSTRING:
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if (name_length != 0) {
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/*
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* This is an attribute, not
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* an additional value, so
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* start a tree for it.
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*/
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attr_tree = add_octetstring_tree(as_tree,
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tvb, offset, name_length,
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value_length);
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}
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add_octetstring_value(tag_desc, attr_tree, tvb,
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offset, name_length, value_length);
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break;
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case TAG_TYPE_CHARSTRING:
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if (name_length != 0) {
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/*
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* This is an attribute, not
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* an additional value, so
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* start a tree for it.
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*/
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attr_tree = add_charstring_tree(as_tree,
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tvb, offset, name_length,
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value_length);
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}
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add_charstring_value(tag_desc, attr_tree, tvb,
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offset, name_length, value_length);
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break;
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}
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offset += 1 + 2 + name_length + 2 + value_length;
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|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
static const value_string bool_vals[] = {
|
|
{ 0x00, "false" },
|
|
{ 0x01, "true" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static proto_tree *
|
|
add_integer_tree(proto_tree *tree, tvbuff_t *tvb, int offset,
|
|
int name_length, int value_length, guint8 tag)
|
|
{
|
|
proto_tree *subtree;
|
|
guint8 bool_val;
|
|
|
|
switch (tag) {
|
|
|
|
case TAG_BOOLEAN:
|
|
if (value_length != 1) {
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: Invalid boolean (length is %u, should be 1)",
|
|
tvb_format_text(tvb, offset + 1 + 2, name_length),
|
|
value_length);
|
|
} else {
|
|
bool_val = tvb_get_guint8(tvb,
|
|
offset + 1 + 2 + name_length + 2);
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: %s",
|
|
tvb_format_text(tvb, offset + 1 + 2, name_length),
|
|
val_to_str(bool_val, bool_vals, "Unknown (0x%02x)"));
|
|
}
|
|
break;
|
|
|
|
case TAG_INTEGER:
|
|
case TAG_ENUM:
|
|
if (value_length != 4) {
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: Invalid integer (length is %u, should be 4)",
|
|
tvb_format_text(tvb, offset + 1 + 2, name_length),
|
|
value_length);
|
|
} else {
|
|
const char *name_val;
|
|
/* Some fields in IPP are really unix timestamps but IPP
|
|
* transports these as 4 byte integers.
|
|
* A simple heuristic to make the display of these fields
|
|
* more human readable is to assume that if the field name
|
|
* ends in '-time' then assume they are timestamps instead
|
|
* of integers.
|
|
*/
|
|
name_val=tvb_get_ptr(tvb, offset + 1 + 2, name_length);
|
|
if ((name_length > 5) && name_val && !tvb_memeql(tvb, offset + 1 + 2 + name_length - 5, "-time", 5)) {
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: %s",
|
|
format_text(name_val, name_length),
|
|
abs_time_secs_to_str(wmem_packet_scope(), tvb_get_ntohl(tvb, offset + 1 + 2 + name_length + 2),
|
|
ABSOLUTE_TIME_LOCAL,
|
|
TRUE));
|
|
|
|
}
|
|
else if ((name_length > 5) && name_val && !tvb_memeql(tvb, offset + 1 + 2, "printer-state", 13)) {
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: %s",
|
|
format_text(name_val, name_length),
|
|
val_to_str_const(tvb_get_ntohl(tvb, offset + 1 + 2 + name_length + 2),
|
|
printer_state_vals,
|
|
"Unknown Printer State"));
|
|
}
|
|
else if ((name_length > 5) && name_val && !tvb_memeql(tvb, offset + 1 + 2, "job-state", 9)) {
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: %s",
|
|
format_text(name_val, name_length),
|
|
val_to_str_const(tvb_get_ntohl(tvb, offset + 1 + 2 + name_length + 2),
|
|
job_state_vals,
|
|
"Unknown Job State"));
|
|
}
|
|
else {
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: %u",
|
|
format_text(name_val, name_length),
|
|
tvb_get_ntohl(tvb, offset + 1 + 2 + name_length + 2));
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
subtree = proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: Unknown integer type 0x%02x",
|
|
tvb_format_text(tvb, offset + 1 + 2, name_length),
|
|
tag);
|
|
break;
|
|
}
|
|
return subtree;
|
|
}
|
|
|
|
static void
|
|
add_integer_value(const gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb,
|
|
int offset, int name_length, int value_length, guint8 tag)
|
|
{
|
|
char *name_val = NULL;
|
|
|
|
offset = add_value_head(tag_desc, tree, tvb, offset, name_length,
|
|
value_length, &name_val);
|
|
|
|
switch (tag) {
|
|
|
|
case TAG_BOOLEAN:
|
|
if (value_length == 1) {
|
|
proto_tree_add_item(tree, hf_ipp_bool_value, tvb, offset, value_length, ENC_BIG_ENDIAN);
|
|
}
|
|
break;
|
|
|
|
case TAG_INTEGER:
|
|
case TAG_ENUM:
|
|
/* Some fields in IPP are really unix timestamps but IPP
|
|
* transports these as 4 byte integers.
|
|
* A simple heuristic to make the display of these fields
|
|
* more human readable is to assume that if the field name
|
|
* ends in '-time' then assume they are timestamps instead
|
|
* of integers.
|
|
*/
|
|
if (value_length == 4) {
|
|
if ((name_length > 5) && name_val && !strcmp(name_val+name_length-5, "-time")) {
|
|
nstime_t ns;
|
|
|
|
ns.secs=tvb_get_ntohl(tvb, offset);
|
|
ns.nsecs=0;
|
|
proto_tree_add_time(tree, hf_ipp_timestamp, tvb, offset, 4, &ns);
|
|
}
|
|
else if ((name_length > 5) && name_val && !strcmp(name_val, "printer-state")) {
|
|
proto_tree_add_item(tree, hf_ipp_printer_state, tvb, offset, value_length, ENC_BIG_ENDIAN);
|
|
}
|
|
else if ((name_length > 5) && name_val && !strcmp(name_val, "job-state")) {
|
|
proto_tree_add_item(tree, hf_ipp_job_state, tvb, offset, value_length, ENC_BIG_ENDIAN);
|
|
}
|
|
else{
|
|
proto_tree_add_item(tree, hf_ipp_uint32_value, tvb, offset, value_length, ENC_BIG_ENDIAN);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static proto_tree *
|
|
add_octetstring_tree(proto_tree *tree, tvbuff_t *tvb, int offset,
|
|
int name_length, int value_length)
|
|
{
|
|
return proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: %s",
|
|
tvb_format_text(tvb, offset + 1 + 2, name_length),
|
|
tvb_bytes_to_str(wmem_packet_scope(), tvb, offset + 1 + 2 + name_length + 2, value_length));
|
|
}
|
|
|
|
static void
|
|
add_octetstring_value(const gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb,
|
|
int offset, int name_length, int value_length)
|
|
{
|
|
offset = add_value_head(tag_desc, tree, tvb, offset, name_length,
|
|
value_length, NULL);
|
|
proto_tree_add_item(tree, hf_ipp_bytes_value, tvb, offset, value_length, ENC_NA);
|
|
}
|
|
|
|
static proto_tree *
|
|
add_charstring_tree(proto_tree *tree, tvbuff_t *tvb, int offset,
|
|
int name_length, int value_length)
|
|
{
|
|
return proto_tree_add_subtree_format(tree, tvb, offset,
|
|
1 + 2 + name_length + 2 + value_length,
|
|
ett_ipp_attr, NULL, "%s: %s",
|
|
tvb_format_text(tvb, offset + 1 + 2, name_length),
|
|
tvb_format_text(tvb, offset + 1 + 2 + name_length + 2, value_length));
|
|
}
|
|
|
|
static void
|
|
add_charstring_value(const gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb,
|
|
int offset, int name_length, int value_length)
|
|
{
|
|
offset = add_value_head(tag_desc, tree, tvb, offset, name_length,
|
|
value_length, NULL);
|
|
proto_tree_add_item(tree, hf_ipp_charstring_value, tvb, offset, value_length, ENC_NA|ENC_ASCII);
|
|
}
|
|
|
|
/* If name_val is !NULL then return the pointer to an emem allocated string in
|
|
* this variable.
|
|
*/
|
|
static int
|
|
add_value_head(const gchar *tag_desc, proto_tree *tree, tvbuff_t *tvb,
|
|
int offset, int name_length, int value_length, char **name_val)
|
|
{
|
|
proto_tree_add_string(tree, hf_ipp_tag, tvb, offset, 1, tag_desc);
|
|
offset += 1;
|
|
proto_tree_add_uint(tree, hf_ipp_name_length, tvb, offset, 2, name_length);
|
|
offset += 2;
|
|
if (name_length != 0) {
|
|
guint8 *nv;
|
|
nv = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, name_length, ENC_ASCII);
|
|
proto_tree_add_string(tree, hf_ipp_name, tvb, offset, name_length, format_text(nv, name_length));
|
|
if (name_val) {
|
|
*name_val=nv;
|
|
}
|
|
}
|
|
offset += name_length;
|
|
proto_tree_add_uint(tree, hf_ipp_value_length, tvb, offset, 2, value_length);
|
|
offset += 2;
|
|
return offset;
|
|
}
|
|
|
|
static void
|
|
ipp_fmt_version( gchar *result, guint32 revision )
|
|
{
|
|
g_snprintf( result, ITEM_LABEL_LENGTH, "%u.%u", (guint8)(( revision & 0xFF00 ) >> 8), (guint8)(revision & 0xFF) );
|
|
}
|
|
|
|
void
|
|
proto_register_ipp(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_ipp_timestamp,
|
|
{ "Time", "ipp.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
/* Generated from convert_proto_tree_add_text.pl */
|
|
{ &hf_ipp_version, { "Version", "ipp.version", FT_UINT16, BASE_CUSTOM, CF_FUNC(ipp_fmt_version), 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_operation_id, { "Operation-id", "ipp.operation_id", FT_UINT16, BASE_HEX, VALS(operation_vals), 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_status_code, { "Status-code", "ipp.status_code", FT_UINT16, BASE_HEX, VALS(status_vals), 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_request_id, { "Request ID", "ipp.request_id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_bool_value, { "Value", "ipp.bool_value", FT_UINT8, BASE_HEX, VALS(bool_vals), 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_printer_state, { "Printer State", "ipp.printer_state", FT_UINT32, BASE_DEC, VALS(printer_state_vals), 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_job_state, { "Job State", "ipp.job_state", FT_UINT32, BASE_DEC, VALS(job_state_vals), 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_uint32_value, { "Value", "ipp.uint_value", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_bytes_value, { "Value", "ipp.bytes_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_charstring_value, { "Value", "ipp.charstring_value", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_tag, { "Tag", "ipp.tag", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_name_length, { "Name length", "ipp.name_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_name, { "Name", "ipp.name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipp_value_length, { "Value length", "ipp.value_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_ipp,
|
|
&ett_ipp_as,
|
|
&ett_ipp_attr,
|
|
};
|
|
|
|
proto_ipp = proto_register_protocol("Internet Printing Protocol", "IPP", "ipp");
|
|
|
|
proto_register_field_array(proto_ipp, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_ipp(void)
|
|
{
|
|
dissector_handle_t ipp_handle;
|
|
|
|
/*
|
|
* Register ourselves as running atop HTTP and using port 631.
|
|
*/
|
|
ipp_handle = create_dissector_handle(dissect_ipp, proto_ipp);
|
|
http_dissector_add(631, ipp_handle);
|
|
dissector_add_string("media_type", "application/ipp", ipp_handle);
|
|
data_handle = find_dissector("data");
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://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:
|
|
*/
|