![Michael Mann](/assets/img/avatar_default.png)
Some of the ASN.1 dissectors still generate a new_create_dissector_handle from the tool itself, so leave those for now. Change-Id: Ic6e5803b1444d7ac24070949f5fd557909a5641f Reviewed-on: https://code.wireshark.org/review/12484 Petri-Dish: Anders Broman <a.broman58@gmail.com> Reviewed-by: Michael Mann <mmann78@netscape.net>
734 lines
20 KiB
C
734 lines
20 KiB
C
/* packet-dbus.c
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* Routines for D-Bus dissection
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* Copyright 2012, Jakub Zawadzki <darkjames-ws@darkjames.pl>
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*
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* Protocol specification available at http://dbus.freedesktop.org/doc/dbus-specification.html
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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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#define NEW_PROTO_TREE_API
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#include "config.h"
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#include <epan/packet.h>
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#include <wiretap/wtap.h>
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#include <epan/expert.h>
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#include "packet-tcp.h"
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void proto_register_dbus(void);
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void proto_reg_handoff_dbus(void);
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static gboolean dbus_desegment = TRUE;
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static dissector_handle_t dbus_handle;
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static dissector_handle_t dbus_handle_tcp;
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#define DBUS_MESSAGE_TYPE_INVALID 0
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#define DBUS_MESSAGE_TYPE_METHOD_CALL 1
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#define DBUS_MESSAGE_TYPE_METHOD_RETURN 2
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#define DBUS_MESSAGE_TYPE_ERROR 3
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#define DBUS_MESSAGE_TYPE_SIGNAL 4
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static const value_string message_type_vals[] = {
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{ DBUS_MESSAGE_TYPE_INVALID, "Invalid" },
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{ DBUS_MESSAGE_TYPE_METHOD_CALL, "Method call" },
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{ DBUS_MESSAGE_TYPE_METHOD_RETURN, "Method reply" },
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{ DBUS_MESSAGE_TYPE_ERROR, "Error reply" },
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{ DBUS_MESSAGE_TYPE_SIGNAL, "Signal emission" },
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{ 0, NULL }
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};
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#define DBUS_HEADER_FIELD_INVALID 0
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#define DBUS_HEADER_FIELD_PATH 1
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#define DBUS_HEADER_FIELD_INTERFACE 2
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#define DBUS_HEADER_FIELD_MEMBER 3
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#define DBUS_HEADER_FIELD_ERROR_NAME 4
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#define DBUS_HEADER_FIELD_REPLY_SERIAL 5
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#define DBUS_HEADER_FIELD_DESTINATION 6
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#define DBUS_HEADER_FIELD_SENDER 7
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#define DBUS_HEADER_FIELD_SIGNATURE 8
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#define DBUS_HEADER_FIELD_UNIX_FDS 9
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static const value_string field_code_vals[] = {
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{ DBUS_HEADER_FIELD_INVALID, "INVALID" },
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{ DBUS_HEADER_FIELD_PATH, "PATH" },
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{ DBUS_HEADER_FIELD_INTERFACE, "INTERFACE" },
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{ DBUS_HEADER_FIELD_MEMBER, "MEMBER" },
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{ DBUS_HEADER_FIELD_ERROR_NAME, "ERROR_NAME" },
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{ DBUS_HEADER_FIELD_REPLY_SERIAL, "REPLY_SERIAL" },
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{ DBUS_HEADER_FIELD_DESTINATION, "DESTINATION" },
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{ DBUS_HEADER_FIELD_SENDER, "SENDER" },
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{ DBUS_HEADER_FIELD_SIGNATURE, "SIGNATURE" },
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{ DBUS_HEADER_FIELD_UNIX_FDS, "UNIX_FDS" },
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{ 0, NULL }
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};
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static header_field_info *hfi_dbus = NULL;
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#define DBUS_HFI_INIT HFI_INIT(proto_dbus)
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/* XXX, FT_NONE -> FT_BYTES? */
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/* Header */
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static header_field_info hfi_dbus_hdr DBUS_HFI_INIT =
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{ "Header", "dbus.header", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_endianness DBUS_HFI_INIT =
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{ "Endianness Flag", "dbus.endianness", FT_STRING, BASE_NONE, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_type DBUS_HFI_INIT =
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{ "Message Type", "dbus.type", FT_UINT8, BASE_DEC, VALS(message_type_vals), 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_flags DBUS_HFI_INIT =
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{ "Message Flags", "dbus.flags", FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_version DBUS_HFI_INIT =
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{ "Protocol Version", "dbus.version", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_body_length DBUS_HFI_INIT =
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{ "Message body Length", "dbus.length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_serial DBUS_HFI_INIT =
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{ "Message Serial (cookie)", "dbus.serial", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_fields_length DBUS_HFI_INIT =
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{ "Header fields Length", "dbus.fields_length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL };
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/* Header field */
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static header_field_info hfi_dbus_hdr_field DBUS_HFI_INIT =
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{ "Header Field", "dbus.field", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_hdr_field_code DBUS_HFI_INIT =
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{ "Field code", "dbus.field.code", FT_UINT8, BASE_DEC, VALS(field_code_vals), 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_type_signature DBUS_HFI_INIT =
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{ "Type signature", "dbus.type_signature", FT_STRINGZ, BASE_NONE, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_body DBUS_HFI_INIT =
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{ "Body", "dbus.body", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL };
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/* Values */
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static header_field_info hfi_dbus_value_bool DBUS_HFI_INIT =
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{ "Value", "dbus.value.bool", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_value_int DBUS_HFI_INIT =
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{ "Value", "dbus.value.int", FT_INT32, BASE_DEC, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_value_uint DBUS_HFI_INIT =
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{ "Value", "dbus.value.uint", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_value_str DBUS_HFI_INIT =
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{ "Value", "dbus.value.str", FT_STRING, BASE_NONE, NULL, 0x00, NULL, HFILL };
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static header_field_info hfi_dbus_value_double DBUS_HFI_INIT =
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{ "Value", "dbus.value.double", FT_DOUBLE, BASE_NONE, NULL, 0x00, NULL, HFILL };
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static int ett_dbus = -1;
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static int ett_dbus_hdr = -1;
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static int ett_dbus_body = -1;
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static int ett_dbus_field = -1;
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static expert_field ei_dbus_value_bool_invalid = EI_INIT;
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static expert_field ei_dbus_value_str_invalid = EI_INIT;
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static expert_field ei_dbus_invalid_object_path = EI_INIT;
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static expert_field ei_dbus_invalid_signature = EI_INIT;
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typedef struct {
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packet_info *pinfo;
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guint16 (*get16)(tvbuff_t *, const gint);
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guint32 (*get32)(tvbuff_t *, const gint);
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gdouble (*getdouble)(tvbuff_t *, const gint);
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int enc;
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guint32 body_len;
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guint32 fields_len;
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const char *body_sig;
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} dbus_info_t;
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typedef union {
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char *str;
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guint uint;
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} dbus_val_t;
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static gboolean
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dbus_validate_object_path(const char *path)
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{
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/* XXX check */
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if (*path != '/')
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return FALSE;
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do {
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path++;
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if (*path == '/')
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return FALSE;
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while ((*path >= 'A' && *path <= 'Z') || (*path >= 'a' && *path <= 'z') || (*path >= '0' && *path <= '9') || *path == '_')
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path++;
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if (*path == '\0')
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return TRUE;
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} while (*path == '/');
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return FALSE;
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}
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static gboolean
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dbus_validate_signature(const char *sig _U_)
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{
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/* XXX implement */
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return TRUE;
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}
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static int
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dbus_type_alignment(char sig)
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{
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switch (sig) {
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case 'y':
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case 'g':
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return 1;
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case 'n':
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case 'q':
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return 2;
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case 'i':
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case 'u':
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case 'b':
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case 'o':
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case 'a':
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case 's':
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return 4;
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case 'x':
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case 't':
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case 'd':
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return 8;
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/* ... */
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default:
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return 1;
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}
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}
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static int
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dissect_dbus_sig(tvbuff_t *tvb, dbus_info_t *dinfo, proto_tree *tree, int offset, char sig, dbus_val_t *ret)
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{
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proto_item *ti;
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const int align = dbus_type_alignment(sig);
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const int org_offset = (offset + align - 1) / align * align;
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offset = org_offset;
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switch (sig) {
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case 'y': /* BYTE */
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{
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guint8 val;
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val = tvb_get_guint8(tvb, offset);
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offset += 1;
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proto_tree_add_uint_format(tree, hfi_dbus_value_uint.id, tvb, org_offset, offset - org_offset, val, "BYTE: %u", val);
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ret->uint = val;
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return offset;
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}
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case 'b': /* BOOLEAN */
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{
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guint32 val;
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val = dinfo->get32(tvb, offset);
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offset += 4;
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ti = proto_tree_add_boolean_format(tree, hfi_dbus_value_bool.id, tvb, org_offset, offset - org_offset, val, "BOOLEAN: %s", val ? "True" : "False");
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if (val != 0 && val != 1) {
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expert_add_info_format(dinfo->pinfo, ti, &ei_dbus_value_bool_invalid, "Invalid boolean value (must be 0 or 1 is: %u)", val);
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return -1;
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}
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ret->uint = val;
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return offset;
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}
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case 'n': /* INT16 */
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{
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gint16 val;
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val = (gint16 )dinfo->get16(tvb, offset);
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offset += 2;
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proto_tree_add_uint_format(tree, hfi_dbus_value_int.id, tvb, org_offset, offset - org_offset, val, "INT16: %d", val);
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/* XXX ret */
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return offset;
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}
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case 'q': /* UINT16 */
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{
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guint16 val;
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val = dinfo->get16(tvb, offset);
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offset += 2;
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proto_tree_add_uint_format(tree, hfi_dbus_value_uint.id, tvb, org_offset, offset - org_offset, val, "UINT16: %u", val);
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ret->uint = val;
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return offset;
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}
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case 'i': /* INT32 */
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{
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gint32 val;
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val = (gint32) dinfo->get32(tvb, offset);
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offset += 4;
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proto_tree_add_int_format(tree, hfi_dbus_value_int.id, tvb, org_offset, offset - org_offset, val, "INT32: %d", val);
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/* XXX ret */
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return offset;
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}
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case 'u': /* UINT32 */
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{
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guint32 val;
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val = dinfo->get32(tvb, offset);
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offset += 4;
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proto_tree_add_uint_format(tree, hfi_dbus_value_uint.id, tvb, org_offset, offset - org_offset, val, "UINT32: %u", val);
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ret->uint = val;
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return offset;
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}
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case 'x': /* INT64 */
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case 't': /* UINT64 */
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return -1;
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case 'd': /* DOUBLE */
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{
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gdouble val;
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val = dinfo->getdouble(tvb, offset);
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offset += 8;
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proto_tree_add_double_format(tree, hfi_dbus_value_double.id, tvb, org_offset, offset - org_offset, val, "DOUBLE: %." G_STRINGIFY(DBL_DIG) "g", val);
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/* XXX ret */
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return offset;
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}
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case 's': /* STRING */
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case 'o': /* OBJECT_PATH */
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{
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guint32 len;
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char *val;
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len = dinfo->get32(tvb, offset);
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offset += 4;
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val = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, len, ENC_ASCII);
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offset += (len + 1 /* NUL-byte */);
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if (sig == 's') {
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ti = proto_tree_add_string_format(tree, hfi_dbus_value_str.id, tvb, org_offset, offset - org_offset, val, "STRING: %s", val);
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if (!g_utf8_validate(val, -1, NULL)) {
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expert_add_info(dinfo->pinfo, ti, &ei_dbus_value_str_invalid);
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return -1;
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}
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} else {
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ti = proto_tree_add_string_format(tree, hfi_dbus_value_str.id, tvb, org_offset, offset - org_offset, val, "OBJECT_PATH: %s", val);
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if (!dbus_validate_object_path(val)) {
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expert_add_info(dinfo->pinfo, ti, &ei_dbus_invalid_object_path);
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return -1;
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}
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}
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ret->str = val;
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return offset;
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}
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case 'g': /* SIGNATURE */
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{
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guint8 len;
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char *val;
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len = tvb_get_guint8(tvb, offset);
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offset += 1;
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val = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, len, ENC_ASCII);
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offset += (len + 1);
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ti = proto_tree_add_string_format(tree, hfi_dbus_value_str.id, tvb, org_offset, offset - org_offset, val, "SIGNATURE: %s", val);
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if (!dbus_validate_signature(val)) {
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expert_add_info(dinfo->pinfo, ti, &ei_dbus_invalid_signature);
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return -1;
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}
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ret->str = val;
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return offset;
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}
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/* ... */
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}
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return -1;
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}
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static int
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dissect_dbus_field_signature(tvbuff_t *tvb, packet_info *pinfo, dbus_info_t *dinfo, proto_tree *tree, int offset, int field_code)
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{
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const int org_offset = offset;
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proto_item *ti;
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guint sig_len;
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char *sig;
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sig_len = tvb_get_guint8(tvb, offset);
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offset += 1;
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/* sig_len = tvb_strsize(tvb, offset); */
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sig = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, sig_len, ENC_ASCII);
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offset += (sig_len + 1);
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ti = proto_tree_add_string(tree, &hfi_dbus_type_signature, tvb, org_offset, offset - org_offset, sig);
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if (!dbus_validate_signature(sig)) {
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expert_add_info(dinfo->pinfo, ti, &ei_dbus_invalid_signature);
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return -1;
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}
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switch (field_code) {
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case DBUS_HEADER_FIELD_REPLY_SERIAL:
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if (!strcmp(sig, "u")) { /* UINT32 */
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dbus_val_t serial_val;
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offset = dissect_dbus_sig(tvb, dinfo, tree, offset, 'u', &serial_val);
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if (offset != -1)
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{ /* XXX link with sending frame (serial_val.uint) */ }
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return offset;
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}
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break;
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case DBUS_HEADER_FIELD_DESTINATION:
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case DBUS_HEADER_FIELD_SENDER:
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if (!strcmp(sig, "s")) { /* STRING */
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dbus_val_t addr_val;
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offset = dissect_dbus_sig(tvb, dinfo, tree, offset, 's', &addr_val);
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if (offset != -1)
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set_address((field_code == DBUS_HEADER_FIELD_DESTINATION) ? &dinfo->pinfo->dst : &dinfo->pinfo->src,
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AT_STRINGZ, (int)strlen(addr_val.str)+1, wmem_strdup(pinfo->pool, addr_val.str));
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return offset;
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}
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break;
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case DBUS_HEADER_FIELD_SIGNATURE:
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if (!strcmp(sig, "g")) { /* SIGNATURE */
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dbus_val_t sig_val;
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offset = dissect_dbus_sig(tvb, dinfo, tree, offset, 'g', &sig_val);
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if (offset != -1)
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dinfo->body_sig = sig_val.str;
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return offset;
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}
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break;
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}
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while (*sig) {
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dbus_val_t val;
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offset = dissect_dbus_sig(tvb, dinfo, tree, offset, *sig, &val);
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if (offset == -1)
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return -1;
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sig++;
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}
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return offset;
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}
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static int
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dissect_dbus_hdr_fields(tvbuff_t *tvb, packet_info *pinfo, dbus_info_t *dinfo, proto_tree *tree, int offset)
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{
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int end_offset;
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end_offset = offset + dinfo->fields_len;
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while (offset < end_offset) {
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proto_tree *field_tree;
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proto_item *ti;
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guint8 field_code;
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|
|
ti = proto_tree_add_item(tree, &hfi_dbus_hdr_field, tvb, offset, 0, ENC_NA);
|
|
field_tree = proto_item_add_subtree(ti, ett_dbus_field);
|
|
|
|
field_code = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(field_tree, &hfi_dbus_hdr_field_code, tvb, offset, 1, dinfo->enc);
|
|
proto_item_append_text(ti, ": %s", val_to_str(field_code, field_code_vals, "Unknown: %d"));
|
|
offset += 1;
|
|
|
|
offset = dissect_dbus_field_signature(tvb, pinfo, dinfo, field_tree, offset, field_code);
|
|
if (offset == -1)
|
|
break;
|
|
|
|
offset = (offset + 7) & ~7; /* XXX ? */
|
|
|
|
proto_item_set_end(ti, tvb, offset);
|
|
}
|
|
|
|
/* XXX, verify if all required fields are preset */
|
|
|
|
if (offset >= end_offset) {
|
|
/* XXX expert */
|
|
}
|
|
|
|
return end_offset;
|
|
}
|
|
|
|
static int
|
|
dissect_dbus_hdr(tvbuff_t *tvb, dbus_info_t *dinfo, proto_tree *tree, int offset)
|
|
{
|
|
proto_tree *hdr_tree;
|
|
proto_item *ti;
|
|
|
|
guint8 type;
|
|
|
|
ti = proto_tree_add_item(tree, &hfi_dbus_hdr, tvb, offset, 0, ENC_NA);
|
|
hdr_tree = proto_item_add_subtree(ti, ett_dbus_hdr);
|
|
|
|
proto_tree_add_item(hdr_tree, &hfi_dbus_hdr_endianness, tvb, offset, 1, ENC_ASCII | ENC_NA);
|
|
offset += 1;
|
|
|
|
type = tvb_get_guint8(tvb, offset);
|
|
col_set_str(dinfo->pinfo->cinfo, COL_INFO, val_to_str_const(type, message_type_vals, ""));
|
|
proto_tree_add_item(hdr_tree, &hfi_dbus_hdr_type, tvb, offset, 1, dinfo->enc);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(hdr_tree, &hfi_dbus_hdr_flags, tvb, offset, 1, dinfo->enc);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(hdr_tree, &hfi_dbus_hdr_version, tvb, offset, 1, dinfo->enc);
|
|
offset += 1;
|
|
|
|
dinfo->body_len = dinfo->get32(tvb, offset);
|
|
proto_tree_add_item(hdr_tree, &hfi_dbus_hdr_body_length, tvb, offset, 4, dinfo->enc);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(hdr_tree, &hfi_dbus_hdr_serial, tvb, offset, 4, dinfo->enc);
|
|
offset += 4;
|
|
|
|
dinfo->fields_len = dinfo->get32(tvb, offset);
|
|
proto_tree_add_item(hdr_tree, &hfi_dbus_hdr_fields_length, tvb, offset, 4, dinfo->enc);
|
|
offset += 4;
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_dbus_body(tvbuff_t *tvb, dbus_info_t *dinfo, proto_tree *tree, int offset)
|
|
{
|
|
proto_tree *body_tree;
|
|
proto_item *ti;
|
|
|
|
if (dinfo->body_len && dinfo->body_sig[0]) {
|
|
const char *sig = dinfo->body_sig;
|
|
|
|
ti = proto_tree_add_item(tree, &hfi_dbus_body, tvb, offset, 0, ENC_NA);
|
|
body_tree = proto_item_add_subtree(ti, ett_dbus_body);
|
|
|
|
while (*sig) {
|
|
dbus_val_t val;
|
|
|
|
offset = dissect_dbus_sig(tvb, dinfo, body_tree, offset, *sig, &val);
|
|
if (offset == -1)
|
|
return -1;
|
|
sig++;
|
|
}
|
|
|
|
proto_item_set_end(ti, tvb, offset);
|
|
|
|
} else if (dinfo->body_len || dinfo->body_sig[0]) {
|
|
/* XXX smth wrong */
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
static int
|
|
dissect_dbus(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
{
|
|
proto_tree *dbus_tree = NULL;
|
|
dbus_info_t dinfo;
|
|
|
|
int offset;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "D-BUS");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
memset(&dinfo, 0, sizeof(dinfo));
|
|
dinfo.pinfo = pinfo;
|
|
switch (tvb_get_guint8(tvb, 0)) {
|
|
case 'l':
|
|
dinfo.enc = ENC_LITTLE_ENDIAN;
|
|
dinfo.get16 = tvb_get_letohs;
|
|
dinfo.get32 = tvb_get_letohl;
|
|
dinfo.getdouble = tvb_get_letohieee_double;
|
|
break;
|
|
case 'B':
|
|
dinfo.enc = ENC_BIG_ENDIAN;
|
|
dinfo.get16 = tvb_get_ntohs;
|
|
dinfo.get32 = tvb_get_ntohl;
|
|
dinfo.getdouble = tvb_get_ntohieee_double;
|
|
break;
|
|
default: /* same as BIG_ENDIAN */
|
|
/* XXX we should probably return 0; */
|
|
dinfo.enc = ENC_NA;
|
|
dinfo.get16 = tvb_get_ntohs;
|
|
dinfo.get32 = tvb_get_ntohl;
|
|
dinfo.getdouble = tvb_get_ntohieee_double;
|
|
}
|
|
|
|
if (tree) {
|
|
proto_item *ti = proto_tree_add_item(tree, hfi_dbus, tvb, 0, -1, ENC_NA);
|
|
dbus_tree = proto_item_add_subtree(ti, ett_dbus);
|
|
}
|
|
|
|
offset = 0;
|
|
offset = dissect_dbus_hdr(tvb, &dinfo, dbus_tree, offset);
|
|
offset = dissect_dbus_hdr_fields(tvb, pinfo, &dinfo, dbus_tree, offset);
|
|
/* header aligned to 8B */
|
|
offset = (offset + 7) & ~7;
|
|
|
|
if (!dinfo.body_sig)
|
|
dinfo.body_sig = "";
|
|
|
|
offset = dissect_dbus_body(tvb, &dinfo, dbus_tree, offset);
|
|
|
|
return offset;
|
|
}
|
|
|
|
#define DBUS_HEADER_LEN 16
|
|
|
|
static guint
|
|
get_dbus_message_len(packet_info *pinfo _U_, tvbuff_t *tvb,
|
|
int offset, void *data _U_)
|
|
{
|
|
guint32 (*get_guint32)(tvbuff_t *, const gint);
|
|
|
|
guint32 len_body, len_hdr;
|
|
|
|
switch (tvb_get_guint8(tvb, offset)) {
|
|
case 'l':
|
|
get_guint32 = tvb_get_letohl;
|
|
break;
|
|
case 'B':
|
|
default:
|
|
get_guint32 = tvb_get_ntohl;
|
|
break;
|
|
}
|
|
|
|
len_hdr = DBUS_HEADER_LEN + get_guint32(tvb, offset + 12);
|
|
len_hdr = (len_hdr + 7) & ~7;
|
|
len_body = get_guint32(tvb, offset + 4);
|
|
|
|
return len_hdr + len_body;
|
|
}
|
|
|
|
static int
|
|
dissect_dbus_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
|
|
{
|
|
return dissect_dbus(tvb, pinfo, tree, data);
|
|
}
|
|
|
|
static int
|
|
dissect_dbus_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
|
|
{
|
|
tcp_dissect_pdus(tvb, pinfo, tree, dbus_desegment, DBUS_HEADER_LEN, get_dbus_message_len, dissect_dbus_pdu, data);
|
|
return tvb_reported_length(tvb);
|
|
}
|
|
|
|
void
|
|
proto_register_dbus(void)
|
|
{
|
|
#ifndef HAVE_HFI_SECTION_INIT
|
|
static header_field_info *hfi[] = {
|
|
/* Header */
|
|
&hfi_dbus_hdr,
|
|
&hfi_dbus_hdr_endianness,
|
|
&hfi_dbus_hdr_type,
|
|
&hfi_dbus_hdr_flags,
|
|
&hfi_dbus_hdr_version,
|
|
&hfi_dbus_hdr_body_length,
|
|
&hfi_dbus_hdr_serial,
|
|
&hfi_dbus_hdr_fields_length,
|
|
/* Header field */
|
|
&hfi_dbus_hdr_field,
|
|
&hfi_dbus_hdr_field_code,
|
|
&hfi_dbus_type_signature,
|
|
&hfi_dbus_body,
|
|
/* Values */
|
|
&hfi_dbus_value_bool,
|
|
&hfi_dbus_value_int,
|
|
&hfi_dbus_value_uint,
|
|
&hfi_dbus_value_str,
|
|
&hfi_dbus_value_double,
|
|
};
|
|
#endif
|
|
|
|
static gint *ett[] = {
|
|
&ett_dbus,
|
|
&ett_dbus_hdr,
|
|
&ett_dbus_body,
|
|
&ett_dbus_field
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_dbus_value_bool_invalid, { "dbus.value.bool.invalid", PI_PROTOCOL, PI_WARN, "Invalid boolean value", EXPFILL }},
|
|
{ &ei_dbus_value_str_invalid, { "dbus.value.str.invalid", PI_PROTOCOL, PI_WARN, "Invalid string (not UTF-8)", EXPFILL }},
|
|
{ &ei_dbus_invalid_object_path, { "dbus.invalid_object_path", PI_PROTOCOL, PI_WARN, "Invalid object_path", EXPFILL }},
|
|
{ &ei_dbus_invalid_signature, { "dbus.invalid_signature", PI_PROTOCOL, PI_WARN, "Invalid signature", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t *expert_dbus;
|
|
|
|
int proto_dbus;
|
|
|
|
proto_dbus = proto_register_protocol("D-Bus", "D-BUS", "dbus");
|
|
hfi_dbus = proto_registrar_get_nth(proto_dbus);
|
|
|
|
proto_register_fields(proto_dbus, hfi, array_length(hfi));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_dbus = expert_register_protocol(proto_dbus);
|
|
expert_register_field_array(expert_dbus, ei, array_length(ei));
|
|
|
|
dbus_handle = create_dissector_handle(dissect_dbus, proto_dbus);
|
|
dbus_handle_tcp = create_dissector_handle(dissect_dbus_tcp, proto_dbus);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_dbus(void)
|
|
{
|
|
dissector_add_uint("wtap_encap", WTAP_ENCAP_DBUS, dbus_handle);
|
|
dissector_add_for_decode_as("tcp.port", dbus_handle_tcp);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* tab-width: 8
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
|
|
* :indentSize=8:tabSize=8:noTabs=false:
|
|
*/
|